Saturday, July 26, 2014

Types Of Locks

When looking at purchasing locks for your home or business, the amount of options can certainly be overwhelming. There are many different types of locks and several different security factors to consider before purchasing. This page will explain the different types of locks and the security features that should be considered.
Although there are many types of locks, the four most common are padlocks, deadbolts, knob locks, and levers.

Padlock

Padlocks

Padlocks are the only type of lock that is typically not permanently attached to anything else. Padlocks come in a range of sizes, are free standing and portable, and are one of the most easily recognizable types of lock. Padlocks come in two main varieties: combination and keyed. Combination locks have one or more number dials that open the lock when the correct combination is entered. They are often easy to decode or shim open. Keyed padlocks have several options to consider. There are rekeyable and non-rekeyable padlocks. If a padlock is non-rekeyable, then you cannot change the key that opens the lock (for example to make it use the same key as your house). Padlocks can be key-retaining or non-key-retaining. A key-retaining padlock does not allow the key to be removed while the padlock is open. Finally, padlocks can have a shrouded shackle. This is an extension of the body where the shoulders of the padlock raise up the sides of the shackle to make it far harder for bolt cutters to cut the padlock.

Deadbolt

Deadbolts

Deadbolts are generally installed on external doors and have a few more options to consider than padlocks. Deadbolts come in three primary varieties: single, double, and lockable thumbturn. Single cylinder deadbolts are found on most American homes. They use a key cylinder on the outside and a thumbturn (rosary) on the inside to open or close the lock. These deadbolts have one primary weakness. If access to the inside is possible (via a nearby window or even through the peephole using simple tools), the door can be opened using the thumbturn. A double cylinder deadbolt uses a key cylinder on the inside and the outside of the door to solve this issue. These have the clear disadvantage of always requiring a key to open the door from the inside if it is locked. This can pose a significant problem in a fire or other emergency situation. If used in a residential situation, it is strongly recommended that a key is left on the inside when people are present to ensure a safe exit in an emergency. The final type of deadbolt is a hybrid between a single and a double deadbolt, and is called a lockable thumbturn. It features a thumbturn on the inside that works like a normal single cylinder deadbolt, except the thumbturn can be locked using a key so it cannot lock or unlock the door. This means in a residential situation, the thumbturn can be left in an unlocked position while people are inside the house, and it will operate exactly like a standard single cylinder deadbolt. When everyone is leaving, especially for extended periods of time, the thumbturn can be easily locked so that even if someone has access to the door from the inside, the deadbolt cannot be unlocked. This type of deadbolt provides maximum flexibility and security in most situations. All deadbolts that we sell are rekeyable, however, products from some vendors are easier to rekey than others.

Knob Lock

Knob Locks

Knob locks are frequently installed in residential situations on exterior doors in addition to deadbolts, and are sometimes used as the primary source of security for doors. First and foremost, it should be said that knob locks should virtually never be used for security on external doors. The problem lies in the fact that the lock cylinder is in the knob itself and not the door. In almost all setups, they can be broken off the door with a hammer or bypassed using pliers or a wrench behind the knob, completely bypassing the locking cylinder. If you currently have knob locks, consider replacing them with simple passage knobs as it will provide almost as much security as long as you are using deadbolts on the same doors. When purchasing complete knob setups it is important to ensure the proper handedness and backset. For more details please see ourBackset/Handedness page.

Lever Lock

Lever Handle Locks

Lever handle locks are frequently used for inner doors in commercial settings. They are easier to open than knob locks as they have a large push down style handle rather than a knob that one must grasp and turn. Frequently when handicap accessibility is important lever locks are used. Our lever handle locks are ADA accessible and can be changed between left and right handedness. When purchasing it is important to measure the proper backset (see ourBackset/Handedness page ). Levers can frequently be the target of torque attacks (excessive pressure applied to the handle to try and force the lock). Some levers are "clutch" levers meaning if they are forced they just turn rather than apply pressure to the lock.

Cam Lock

Cam Locks

Cam locks are used in a variety of applications but are most frequently found in filing cabinets, mailboxes, and lower security OEM applications. They come in several different lengths and can use a variety of tailpieces or “cams” to interface with another locking mechanism. There is a very large variety of cam options, and we suggest you see our Cams/Tailpieces page. They can rotate clockwise or counter-clockwise and the amount of rotation can be limited to 90 or 180 degrees.

Mortise Lock

Rim/Mortise Locks

Rim cylinder and Mortise cylinder locks are frequently found on commercial doors, entry glass doors, and some apartment doors. While rim locks are very similar to mortise locks (many of our Abloy locks are rim/mortise combo locks) the actual hardware they are used on greatly differs. Rim cylinder locks are generally used in rim latch locks which are mounted on the inside of the door. Rim cylinder locks always have a long metal piece extending out the rear of the lock that runs through the door into a locking mechanism on the opposite side of the door. Rim locks are held in place by two screws from the inside that screw into the back of the rim cylinder. By contrast, mortise cylinder locks are threaded and actually screw into mortise hardware that is mounted within the door. They are held in place by a set screw and utilize a cam to actuate the locking hardware. Mortise cylinders come in several different lengths and there is a large variety of options for the cams depending on the exact mortise hardware they are being used in. We suggest reading our Cams/Tailpieces page for more information.

Euro Thumbturn Cylinder

Euro Profile Cylinders

Euro profile cylinders (sometimes called DIN cylinders) are frequently used in locking devices in Europe and other parts of the world. They are also used in North America in some sliding glass door locks and room dividing doors. They come in several varieties: single cylinder (one sided), double cylinder (locking cylinder on each side), and single cylinder with thumbturn (locking cylinder on one side and thumbturn on the other). The euro profile cylinder is a fairly standard form factor. The exterior (and optionally interior) lengths do vary, but the rest of the dimensions are fairly standard. Euro profile cylinders are held in place by a single screw that runs through the middle of the cylinder in most applications. Due to this single small attach point the euro profile cylinder can be easily snapped off the door if it is not of proper length or reinforced.

Key Deposit Lock

Wall Mounted Locks

Wall mounted locks are locks that are actually mounted in the wall. The most common type of wall mounted lock would be the Knox-Box or fireman's box style lock found in many larger businesses as an emergency access to the buildings keys. Wall mounted locks can be used for more than just key storage. Some act as small safes or item deposits. Installation is generally done at time of construction although some wall mounted locks can be easily installed into existing buildings. Most wall locks can be mounted in a variety of wall surfaces. Frequently wall locks will be mounted with covers or alarm sensors to allow networking into the buildings security system (to detect unauthorized access).

Interchangeable Core Cylinder

Interchangeable Core (IC) Cylinders

Interchangeable Core Cylinders are frequently used in larger institutions and businesses and are known for their easy ability to re-key the lock by swapping out the core without taking the lock apart. I/C Locks have two types of keys that work in the lock, the standard operator key locks and unlocks the lock like normal, while the control key, when used, pulls the entire core of the lock out without removing any screws. This is very useful when upgrading locks since the door hardware can be left alone. Just the lock cores are replaced with new ones allowing the door to be upgraded in seconds. The most popular I/C Lock brands are Best, Yale, and Schlage. Their figure-eight style cores are well known and are found in many places around the world. There are different I/C lock formats with the two most popular being Small Format Interchangeable Core (SFIC) and Large Format Interchangeable Core (LFIC). It is important to note that I/C cylinders can only be installed in housings specially meant for I/C cylinders. They cannot be installed in standard deadbolts or locks not meant to take an I/C cylinder. In almost all cases if your lock can take an IC cylinder you will see the figure eight on the outside of the lock.

Furniture Lock

Furniture Locks

This category of locks actually covers a variety of locks including cabinet, desk, and sliding door locks. There are two primary styles of furniture lock, bolt style and push button style. Bolt style furniture locks have a piece of flat metal that extends out the side of the lock to secure the device. Frequently, bolt style locks are found on desks, cabinets, and drawers, although they are also used in a wide variety of other devices. Push button style locks have a rod that comes out the back of the lock that is used to secure things in place. When the lock is unlocked it pops out retracting the rod into the lock body. The device is then re-locked by pushing the lock back into its shell. A few of their common applications are filing cabinets and sliding doors. Frequently, furniture locks can be installed onto existing hardware that may not already have a lock installed.

Vending Lock

Vending/T-Handle Locks

These locks are primarily found in vending machines and T-Handle locks, although they are sometimes used in other applications. T-Handle locks are frequently exceptionally easy to replace as when you open the device you are actually pulling the t-handle lock out. Placing a new T-handle lock back in when closing the device is all that is necessary to complete the upgrade. T-Handle locks generally come in two variants, a spring latch that allows the device to be re-locked without needing a key, and a dead latch that requires a key to re-lock the device.

Jimmy Proof Deadbolt

Jimmy Proof Deadbolts

Jimmy proof deadbolts are a surface mount product frequently found on apartments and double doors. They are sometimes preferred due to the minimal door modifications required. They are also unique as the deadbolt interlocks with the jamb bracket preventing it from being simply pulled apart or forced easily from the outside. A surface mount lock means the lock screws into the inside of the door rather than having a complex drill pattern like a standard deadbolt. Jimmy proof deadbolts only require a hole drilled straight through the door for the rim cylinder. If you have an existing Jimmy proof deadbolt you can generally replace just the rim cylinder to upgrade your security. 

Complete Rim Lach Lock

Rim Latch Locks

A rim latch lock has a standard or custom rim cylinder on one side and a surface mount latch lock on the other. Rim latch locks can auto lock the door behind you and are popular in some apartment complexes. Rim latch locks are generally not meant to take a large amount of force but can be paired with other locks when used on an external door. 

Key In Knob Cylinder

Key In Knob (KIK) Cylinders

A Key in Knob cylinder is generally found at the heart of most knobs, levers, and lower cost deadbolts. They are also popular in a variety of OEM applications and even some sliding glass doors. A KIK cylinder is generally hidden inside of the lock with only the circular face of the lock being visible. Frequently, when you take the lock apart (knob/deadbolt/etc), you will find a KIK cylinder held in place with a screw. Unfortunately, while KIK cylinders all generally look similar, there are no standard specifications to their design. This can make replacing one cylinder with another of a different brand (or a high security model) challenging. Major manufacturers generally have one or more of their own designs for a KIK cylinder. Other manufacturers sometimes duplicate the style so that their cylinders can replace those produced by other manufacturers. Aside from the different sizes that KIK cylinders can have, they also have one of several different style tails on the rear of the lock. A floating tail is where the tailpiece can rotate a certain amount without the cylinder itself rotating. A fixed tail is where the tailpiece cannot rotate without the cylinder rotating. 

Abloy Boda Lock

Other Locks

There are still additional types of locks like European locks, switch locks, and deposit box locks to name a few. If you have questions about other types of locks, please contact us

Reference: https://securitysnobs.com/Types-Of-Locks.html

GLOSSARY OF LOCK TERMINOLOGY

http://www.locksmiths.co.uk/wp-content/uploads/2012/04/MLA-Lock-related-Jargon-Buster.pdf

Wednesday, July 23, 2014

Electric Lock knowledge

Electric Lock of access control with electric locks are an important part of access control systems, is the executing agency and key equipment access control system, if the access control system likened to a person, then, power locks like human hands and feet, the relationship between stability of the entire access control system.If an access control system controllers and readers are good, the quality of the electric lock if there are problems, it will also lead to the acceptance and use of open doors, etc., the impact of the project. 
Implementation of access control equipment mainly for electronic locks, cross revolving door, three club gates, barrier and other controllable electro-mechanical equipment; paper mainly carried out for the electronic locks Detailed: Electronic locks including power locks (anode lock), cathode lock (electric locking), magnetic locks, electric locks, etc.; electric locks used for two-way 180 ° door of the occasion, its reliability, aesthetics, practicality are good, low power locks itself fails, the system often The reason is that there is a fault in the spring mounted on the door, because of the quality problems often can not close properly in place. In order to strengthen and stability of the system, the general choice of good quality in the spring as a basic guarantee, and then install a bead positioned on the door frame, so that we can meet the practical needs. 
Electromagnetic locks used on the way out the door to open, its reliability, practicality can fully meet the needs of users. Failure is very low electromagnetic lock itself, as long as its circuit wiring is correct, generally do not need any maintenance work, and due to mechanical impact sound when the door is closed it is small, it will be widely used in future residential building intercom door system. Electric locking due to lower its production process requirements, technical content is not high, which is currently in China, there are many manufacturers are able to produce such products. Electric locking manufacturers mostly in Guangzhou, Zhejiang, Tianjin, Liaoning and other provinces and cities, and the world's most advanced production technology and process still lies in Germany and the Japanese, Taiwanese hands. Electromagnetic lock technology, now the Chinese have mastered. With the continuous penetration of Taiwanese manufacturers in mainland China production of electromagnetic locks, its proportional share of the world will gradually increase. Power locks and process technologies, China now also been part of the vendor master. But its performance and appearance comparison with similar foreign products still some differences, if ya, in time, will be able to catch up and surpass the world's advanced level. So, how to choose the electronic locks it? The following answer these questions: domestic or imported? Imported electric lock is too expensive, the purchase price of nearly every block, sold nearly a thousand users hands did not get down the block is, although the real import of electric locks, technology is relatively mature, low product failure rates, but the service still a problem, if there is a problem, you foreigners always say China's power is unstable so many reasons, is very troublesome. I suggest buying homemade lock Well, affordable lot, but mostly produced in Taiwan or integrated into the manufacturing process of Taiwan (Taiwan is a major foreign power locks OEM base) and quality standards, and poor are poor not to go. Power locks or electromagnetic locks or electric locking or electric locks? go with what kind of lock, you have to look at what kind of get in the door? Double Open (also available in the open outside the open) the best electric glass door locks, in-house single open (only open in the open or only outside) doors preferably with magnetic locks, magnetic locks, also known as electromagnetic locks. Magnetic door locks installed on the upper part of the body, some people will feel not hidden installation, pretty, in fact, are so used abroad. To use magnetic lock abroad than electric locks, magnetic locks should also be higher than the stability of electric locks, power locks, but security must be high. Electric locking is installed in the door lock side and the ball used in conjunction with mechanical locks, security is much lower, but the wiring is not convenient, but the price is cheaper, does not recommend adoption. The best is to buy a cell with magnetic locks and electric locks, electric locks noise is relatively large, generally speaking of buildings are equipped with the electronically controlled lock, and now there is also a silent electric locks, can be considered. However, no matter what the lock should pay attention to the rain, the lock is made ​​of iron, it is easy to rust, and this should be noted. There is a power outage related to market power locks, the lock can still close the back door to meet customer requirements for power, but does not meet the fire safety requirements, it may pass, but its thickness door when there is a requirement of acceptance, install it intentionally unexpected trouble, so it is recommended to customers less good. 
So, how to buy electronic locks it? Please pay attention to basic common sense answer below: basic knowledge of electric locks buy the first locking surface to have a metallic luster, not obvious scratches, standby current of about 300mA, operating current to less than 900mA. After prolonged electricity, surface slightly hot, but not hot. Power locks efforts to fully bounce after pressing down the lock to automatically bounce and powerful, it is best to be 4,000 times on-off test, if, and found the process lock weakness, or bouncing in place, or bomb not up, deemed ineligible. Some contractors ask: is an optional two-line or multi-line electric lock it is like this, power locks with multi-line is microprocessor controlled, power locks by running current MCU intelligent control, the lock will not? too hot, but with delay control function and door sensor detection; delay control function can be adapted to use spring bad door, door monitoring function can provide door open or closed state of the real-time monitoring capabilities of the controller.Although you may not use these features, but there are grades of quality and stability of the electric lock microprocessor controlled electric locks and no MCU is not on a level. Therefore, we recommend that you do not have to save a little money, power locks two lines, the internal structure is very simple, just a current driving solenoid agencies, current, severe fever to a certain time will damage the lock. Basic knowledge of electromagnetic locks buy exquisite appearance to the surface can not have obvious scratches or rust, magnetic lock key is to look at its anti-rally; This requires specialized equipment was measured, so only installed after the hand Suddenly hard way pull it, pull open as normal, but be aware that installing electromagnetic locks lock pull to match, do not install iron absorption too tight, otherwise it will affect the resistance to tension. When matching locks, first of all have to distinguish between 90 degrees to open the door (one-way door) and open 180 degrees (two-way door) In both cases, the use of 180-degree door affirmation electric locks, door 90 can use magnetic locks, electric locks, cathode locks, glass doors locks, power locks and so on. Door closers are determined based on the weight, the weight of the door by the door of the volume and material decisions. Stents are based on aesthetics, safety and convenience of choice. How to be identified that locks from various technical indicator? 

Magnetic locks identification criteria of eligibility magnetic locks, generally provide two types of 12V and 24V input voltage (single-coil and dual-coil difference), they are to be selected by jumper switch. Judge the merits of a magnetic lock, there are several ways: 
1, see the circuit board inferior magnetic lock can be judged from the circuit board, the printed circuit board magnetic locks poor rough layout very simple, do not use varistors (ie surge, generally there are two), and only one set of voltage input.
2, measuring the resistance of the first magnetic lock switch 12V and 24V jumper pulled out (note: no electricity), generally have four terminals (jumper Department), measuring its red, black two lines, the resistance at 50 preferably about ohms. 
3, the measured current value after power after the magnetic lock 12V voltage measured through its current value, in line with the marked value is preferred. 280KG (600 lbs) of magnetic locks typically 400-450 mA better, if less than 450 mA is not enough tension; If the pass 24V voltage, the dimension value or actual value should be 200 mA. 
4, the insulation value of the standard magnetic lock qualified insulation value of the lock body should be infinite as well, the specific values ​​should be above 50 megohms; specific test location to cut steel output lines with the lock body (either one). 
5, vertical cut steel sheet to minimize touch or stained smear, the more qualified the standard magnetic locks cut steel verticality and parallelism as possible on the principles of cut steel. The quality of steel plating to cut to cut steel on whether the oxidation traces. 
6 Glue check colloidal magnetic lock can not appear bubbles should be flat and tidy, no cracks, angle Founder. 
7, cut steel from the main concern should be the thickness of 0.35mm steel cut is the best currently on the market are using more steel cut of 0.5mm; arrangement cut steel lock body as closely as possible, observe the arrangement of which appear not to cut steel glue seepage phenomenon. 
8, no residual magnetism in general Magnetic locks locking plate using iron manufacturing, but most of the locking plate 99 percent of iron, so to have to go residual magnetism function, equipped with protruding rubber mats, cushion, There are anti-lock device will reduce the residual magnetic pull of about 35 kg; If using 99.9% iron product, no anti-residual magnetism device can basically rule out the generation of residual magnetism, and plenty of tension. 
9,4007 LED indicator and signal output is not especially locks, usually in the lock at the positive and negative power supply coupled with this diode crystal clear disclosure overwhelmed handle locks material, but off, and some protection work done in this prevent a wrong or the positive and negative impact of access control machines. 
10, the lock body shell treatment process lock housing is generally brushed by oxidation or oxidative sandblasting, especially oxide sandblasting, sand is superior. Neatly brushed, sprayed money evenly, cutting planing steel body shell. 
11, high and low pressure low pressure, the locks still work, but the tension reduced; locks experience hot high pressure, you should pay attention to case temperature, the temperature over 20 degrees for bads, usually within an hour you can get the temperature data. 
12, pH testing with a weak acid-coated steel plate cut to the lock body, will lock the good oxidation after 45 minutes, and the difference is generally 15 minutes appears oxidation. Another lock can be soaked in water for 24 hours blackened bads. 
13, finish the small water drops on the lock body cut steel, observe the flow is smooth, is dragging its feet, by its smooth finish is excellent.
14, the lock body plating attention concept note lock corner position plating quality, wrinkles, dark by electroplating, but off the lock body. 
15, the output line for the two core no signal output power locks, five core is with door position detection output. 

Power locks the differential power locks and magnetic beads have two touch sensors, and touch beads are basically out of the market. Determine a magnetic induction electric locks the merits, the following aspects: 
1, insert tip diameter of15-16mm is appropriate to 
2, high and low voltage power locks generally work in 10V-18V between individual manufacturers also do to 28V, for lock power supply, can keep the pressure in order to test its resistance to high voltage value, test the temperature in the high pressure can not exceed 20 degrees, usually in about 5 minutes can be measured. Locks greater consumption at startup, standby power consumption is reduced by more than half. 
3, when the power locks work in the opposite direction, upward movement jumper, listening to his voice snapped as well, porphyrin as inferior; required to withstand 500-1000g or more under the pressure of the weight. 
4, the restoring force of200-300g of afterburner (the vertical direction of the force of the jumper's) has been applied in the middle of the pop-up jumper, jumper must be working; may put locks slapped, pop flexible test jumper degree and restoring force. 
5, the guide at the exit of whether jumper with plastic rings, which play a leading role; jumper and observe whether there is tilted bias. 
6, off the magnetic lock away the lower end of the main disk, lock latch must remain stationary (away from must be greater than 5cm), this method is used to test off when the magnetic locks work. As long as the magnetic locks inferior septum a thick piece of paper which can cause locks work (recovery jumper). 
7, lock the feedback line 2 core wireless circuit boards or no start-up current and standby current of the points of the locks, only the positive and negative power lines; 3 core as having positive and negative power line outside add a lock bit is detected (usually NO shared negative ground wire); five core is increased with the positive and negative power line outside a locked position or door position detection (a group of three lines, NO, NC, COM); increase of 6 core is based on a 5-pin switching signal line (common negative ground); 8 core to increase a door position detection (three lines) and a set of lock-bit detection (three lines) with the positive and negative power lines; 10 cores in 8-pin add a set of switches line basis. 
8, the temperature fuselocks do not have the thermal fuse when the temperature rises to a certain value will result in a lack of protection lock burn or cause greater consequences, and the thermal fuse has the lock can be interrupted at a predetermined value when the lock power supply ; such a temperature fuse is divided, one is ordinary fuse, the fuse must be replaced dissolving the rear, while the other is with a reset function, after an interruption, you can resume normal wait for a certain time. 
9, the switching signal of the switching signal is a passive signal is generally, but passive signal susceptible to interference, so there is a function of the optical coupling with the switch signal.People living with the developed intelligent access control products are closely related. We are not familiar with the fully enclosed cross revolving door, use the already very popular in foreign countries. In the United States and Europe metro station, subway station where a large flow of people, they are great ways to ease the flow of people, a flat-rate fare is one initiative from Beijing subway stations do not count the number of uniform fares for crowd control use Cross is fully enclosed revolving door. Intelligent control channel lined unilaterally limiting the use, that is, into and out of the different channels. All channels without having to manually manage the use of television monitors, each of the customers to choose the coin or ticket via magnetic induction Cross Gate, automatic reset rotate 120 degrees, once only by one person. Induction (or coin), released by a reset, again and again take up the subway crowd control and charging management task.