How many kinds of door knives are installed on the door?

There are three kinds of door knives installed on the car door.

With the gradual improvement of elevator safety performance requirements, the new gb7588 standard requires that the motor door opening mechanism should have such functions: it can lock the car door in the elevator non-flat area, and it is allowed to unlock it in the elevator flat area under any circumstances, so that passengers can escape.

In order to achieve the above functions, the following two solutions are usually adopted:

The first is the independent door lock, which is not directly related to the door knife and the door ball.

The second is the car door lock with integrated door and knife, which judges whether it is flat or not by clamping the croquet of the landing door, and the croquet of the landing door is used as a device to trigger the unlocking of the car door lock.

For car door locks with integrated door knives, there are asynchronous door knives and synchronous door knives, so there are differences between asynchronous door knives and synchronous door knives. The asynchronous door knife is unsightly because the door is bigger than the hall door, and there is a risk that the pulling distance exceeds the national standard. Therefore, the synchronous door-knife integrated car door lock is widely used as a feasible scheme.

The existing integrated synchronous door knives for automobile door locks can be roughly divided into two categories: single-blade unlocking (first blade and unlocking blade) and double-blade unlocking (both the first blade and the second blade can achieve unlocking effect). Single-leaf unlocking requires high installation requirements, which easily causes the car door and landing door to be out of synchronization at the moment of opening the door, and the hall door synchronization is not ideal. Moreover, the vertical distance between the center of the landing ball and the unlocking blade should be strictly required when installing the landing door, otherwise the door will easily appear.

At present, the position of the application shaft of portal crane needs to be adjusted according to different types of portal cranes, and the corresponding control parameters of portal crane also need to be adjusted, which leads to the poor adaptability of double-blade unlocking synchronous portal crane.

Technical realization elements:

Based on this, this paper provides an integrated synchronous door knife for automobile door lock, which can be applied to different types of door cranes and the installation and debugging process is simpler.

The invention relates to an integrated door lock synchronous door knife, which comprises a door knife bottom plate installed on an elevator door, a lock hook hinged on the door knife bottom plate and matched with a hook-attached part, and further comprises:

The first blade and the second blade are movably installed on the bottom plate of the door cutter and connected with each other;

The swinging piece is rotatably installed on the bottom plate of the door cutter and connected with the motor driving mechanism;

The first limiting hole is arranged on the bottom plate of the door cutter and used for limiting the swing amplitude of the swing piece;

The first elastic component acts between the bottom plate of the door cutter and the swinging member to drive the swinging member to reset;

A transmission part linked with the swinging part to drive the lock hook to rotate;

The second elastic element acts between the bottom plate of the door cutter and the lock hook to drive the lock hook to reset;

A connecting arm connected with the oscillating member to drive the first blade and the second blade to open and close.

The following also provides some alternative methods, but not as additional restrictions on the above overall scheme, but as further supplements or optimizations. On the premise that there is no technical or logical contradiction, each alternative can be combined separately for the above overall scheme, or can be combined in multiple alternatives.

Optionally, the swinging piece is rotatably installed on the bottom plate of the door cutter through the first rotating shaft, and the force point of the first elastic piece acting on the swinging piece is far away from the first rotating shaft.

Optionally, two rotating arms are hinged between the first blade and the second blade, and the two rotating arms are arranged in parallel; The middle parts of the rotary arms are rotatably connected with the door cutter base plate through second rotating shafts respectively, and the linkage arm is hinged with one of the rotary arms.

Optionally, one end of the locking hook is a hook head which is matched with the hook attachment part and bent upwards, and the other end is provided with a force wheel which acts on the transmission part, and the transmission part has an arc edge which acts on the force wheel.

Optionally, one end of the lock hook provided with the power wheel is provided with a counterweight for driving the lock hook to reset.

Optionally, the first limiting hole is an arc hole, and the swing piece is provided with a limiting shaft extending into the first limiting hole.

Optionally, the linkage arm is rotationally connected with the transmission part through a third rotating shaft, the swinging part is provided with a second limiting hole, and the third rotating shaft extends into the second limiting hole.

Optionally, the bottom plate of the door cutter is hinged with a retaining arm, and the swinging piece is provided with a bayonet matched with the retaining arm; A guide wheel matched with the guide plate on the portal crane is arranged on the retaining arm for guiding the retaining arm away from the bayonet, and a third elastic piece is connected between the retaining arm and the portal knife bottom plate for driving the retaining arm to reset.

Optionally, one end of the stop arm is hinged on the door knife bottom plate, the other end of the stop arm is provided with a bayonet, the middle part of the stop arm is provided with an application shaft, and the third elastic piece acts between the application shaft and the door knife bottom plate.

The application also provides an integrated automobile door lock synchronous door knife system, which comprises a hook component installed on the bottom plate of the door machine and an integrated automobile door lock synchronous door knife matched with the hook component, wherein the hook component is provided with a lock opening and a socket with a downward jack, and the lock hook of the integrated automobile door lock synchronous door knife is provided with a hook head bent upward and matched with the lock opening and a bolt matched with the socket.

The integrated automobile door lock synchronous door knife and system provided by the application can be suitable for different types of door cranes, and the installation and debugging process is simpler.

Brief description of drawings

Fig. 1 is a schematic diagram of an integrated automobile door lock synchronous door knife according to an embodiment of the present application;

Fig. 2 is a front view (locked state) of an integrated automobile door lock synchronous door cutter according to an embodiment of the present application;

Fig. 3 is a rear view (locked state) of an integrated automobile door lock synchronous door cutter according to an embodiment of the present application;

Fig. 4 is a front view (unlocked state) of an integrated car door lock synchronous door knife according to an embodiment of the present application;

Fig. 5 is a rear view (solution) of an integrated car door lock synchronous door cutter according to an embodiment of the present application.