Strengthening entrance doors in our time has become more of a vital necessity than a luxury, the electromechanical latch provides a reliable and convenient fixation of the lock. Places of installation are different - from the usual front door to the apartment to the street gate, providing an entrance to the yard.
Design Features
The electromechanical latch is an auxiliary element that provides more reliable fixation of the door, automatic and remote operation of the locking mechanism.
Her Features:
- The latch secures the latch bolt, and installation does not require a complete replacement of the mechanical part.
- Cheaper analogue of an electromechanical lock, as it has less resistance to external mechanical stress.
- Not alllatch types are compatible with latch, you need to consult with the seller before buying.
- Requires AC or DC power connection depending on which electric door latch will be installed.
- Work can be carried out remotely by pressing a button by the owner of the premises. Often used in multi-apartment or private homes in conjunction with an intercom. Options using plastic cards and digital panels are also used.
- When buying, you need to pay attention to the type of door: wooden, metal, plastic, metal-plastic.
- The electromechanical latch with an electric drive requires tight closing of the leaf with constant cleaning of the closing area from contaminants and installation of closers.
- The type of latch used depends on how the door is installed: right-handed or left-handed.
Schemes and installation types
The connection diagram of the electromechanical latch is implemented in several ways:
- Installation in the door frame with the replacement of the plate with holes for the bolt, while the extended bolt is blocked.
- The latch is installed in the side of the door frame. The classic scheme, in which the mechanism itself remains completely invisible.
Latch types:
- With normally closed fixation.
- With caging - allows you to temporarily keep the lock in the open state, until the door is opened again. A special feature is the presence of a special pin in the center of the tongueclasps.
- Normally open operation.
Latch operation
The principle of operation of an electromechanical latch is determined by its type:
- When using a normally-closed circuit, it is desirable to connect from an AC source. The door is in a locked state and opens only when a control signal is received and closes if the signal stops. Withstandable counter-load force when opening - up to 150 N.
- Caging latches are designed for a one-time opening of the door when a signal is received. The voltage ceases to be supplied - and the door opens. Proper installation should provide 2÷3mm clearance between tongue and lock.
- Normally open type is provided by releasing the lock only when the power is turned off. These systems use a constant current source.
Often during the operation of the door, it becomes necessary to perform additional unlocking, which involves installation:
- Lever in the corner of the lock tongue, which provides mechanical unlocking of doors (for exterior doors and in conditions of high humidity, a sliding screw is most often used).
- Additional electric coil to ensure long-term free operation of the door.
Standard installation kit
Complete set "door latch" presentsyourself:
- Two handles: the inner must be push, the outer must be fixed.
- Mechanical lock on bolts with key.
The door will be unlocked from the outside only if the electromagnetic latch receives a control signal, or when the mechanical lock is opened with a key. When mechanically closing on the bolt, the remote operation function is disabled.
Latch installation
Standard scheme involves working with a door frame into which an electromechanical latch crashes, installation will require the following operations:
- Remove the old striker located on the door frame.
- Measuring for latch installation:
- seats from the outside of the door to the end of the lock tongue;
- of the tongue itself, including the depth of entry into the frame canvas.
- Apply markings. Attach a keep and mark the places for fasteners and tongue.
- If there is a wooden box, then use a grinder to cut holes of the required size. A hollow door will require additional fasteners, with which the latch is fixed to the body, the holes are made with a drill.
- Install a non-push handle on the outside of the door.
A photo of the door and installation site will help the seller to more accurately determine the type of product when selling.
Connecting power to latch
Connecting power to the latch using wires, their number and connection scheme depends on the method of controlling the automaticwork - be it a digital keypad, audio or video intercom, or other access control systems.
- If the case is hollow, the wires are laid out, according to the diagram attached to the instructions, inside the cavity and brought under the plinth with subsequent connection to control devices and power supply.
- Working with a solid box involves drilling additional channels to bring the wire to the wall.
- Install the latch in the prepared groove and secure with fasteners. For fixing to a metal door, two additional retaining plates and screws are required.
- Fixing the latch to check the correct operation of the entire system.
Features of installing the latch on the gate
An electromechanical latch on the gate will require additional work to bring wires from the gate to the house.
Ways of summing up:
- By air - the fastest and cheapest implementation. The wire must be fixed to a taut cable or rigid support, securely fastened at the same time. Poor anchorage in windy weather is the main cause of the break.
- Underground - a reliable, but more expensive and time-consuming option, will require digging a trench and then laying a protective sleeve in it, in which the wire will be placed.
Pros and cons
Electromechanical door strikes provide benefits:
- Versatility. Possibility to combinemechanical lock with electrical interlock, which allows the lock to remain operational during power outages or system breakdowns.
- Quick installation, price. It is possible to install a completely new lock or replace only the counterpart, which saves money.
- Convenience. Remote control allows you to control the entrance to the premises, being at a distance from it.
- Secure locking. The resistance of the lock mechanism to the implementation of external breaking intensifies.
There are also a number of disadvantages:
- Installation is not possible in all cases.
- Electric locks have more locking force.
When choosing locking mechanisms for the door, it must be remembered that no matter how expensive the chosen system is, the lock will not work correctly without proper installation and connection. Doors and locks are not household items that can be saved on without endangering the safety of property.
