CN201268989Y - an escape lock - Google Patents

Abstract

The utility model relates to an escape lock, which comprises a latch bolt component, a square bolt component and a shifting fork component which are arranged on a lock body seat, wherein the square bolt component is controlled by a clamping plate, a linkage plate is arranged between the latch bolt component and the square bolt component, a clamping plate linkage piece and a square bolt toggle piece are arranged on the lock body seat, and the clamping plate linkage piece and the square bolt toggle piece can independently rotate around the same positioning column respectively; be equipped with on a shift fork of this fork subassembly and can act on first promotion platform and the second promotion platform of this cardboard linkage piece and square tongue stirring piece one end respectively, the other end of this cardboard linkage piece and square tongue stirring piece acts on this cardboard and square tongue subassembly respectively cardboard linkage piece push away from this cardboard, this square tongue stirring piece can promote this square tongue subassembly and slide toward the lock body seat. The escape device has the advantages of simpler and more reasonable structure, low production cost, low failure rate and better escape effect.

Description

an escape lock

【Technical field】

The utility model relates to an escape lock.

【Background technique】

The escape lock means that in an emergency, people can directly operate the handle to open the square tongue without a key, so as to achieve the purpose of opening the door and escaping. In the escape lock at the present stage, in order to realize its escape function, there are many parts in it, and there are many linkage actions between the parts, which brings about the complex structure and high production cost of the entire escape lock; at the same time, the handle The action of opening the square tongue is not stable and reliable, which brings it a high failure rate and poor escape effect.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an escape lock with a simpler and more reasonable structure, lower production cost, lower failure rate and better escape effect.

In order to solve the above-mentioned existing technical problems, the utility model adopts the following technical scheme: it includes an oblique tongue assembly, a square tongue assembly and a shift fork assembly arranged on the lock body seat, and the square tongue assembly is controlled by a clamping plate. A linkage plate is provided between the oblique tongue assembly and the square tongue assembly, and a clamp linkage piece and a square tongue toggle piece are arranged on the lock body seat, and the clamp linkage piece and the square tongue toggle The moving pieces can rotate independently around the same positioning column; a first pushing platform and a second pushing platform which can respectively act on one end of the card linkage piece and the square tongue moving piece are arranged on a fork of the shifting fork assembly, The other end of the card board linkage piece and the square tongue moving piece act on the card board and the square tongue assembly respectively. When the card board linkage piece is pushed away from the card board, the square tongue moving piece can push the The square tongue assembly slides in the lock body seat.

In an improved solution to the above escape lock, the shift fork assembly includes an upper shift fork, a middle shift fork and a lower shift fork, and the first and second pushing platforms are arranged on the middle shift fork.

In the improved solution to the above-mentioned escape lock, the lower end of the clamping plate linkage acts on the clamping column of the clamping plate; the lower end of the square tongue driving piece acts on the square tongue plate located in the square tongue assembly Bottom studs.

In the improved solution to the above escape lock, the linkage plate slides and rotates around the linkage plate column located on the square tongue plate of the square tongue assembly, one end of which is connected to the latch bolt rod of the latch bolt assembly, and the other end Can be acted by the lock core that is arranged in the lock core hole of this lock body seat.

Compared with the prior art, the beneficial effect of the utility model is: because it realizes opening the square tongue with the handle through the card plate linkage piece and the square tongue moving piece rotating around the same positioning column, compared with the present stage For the opening action of the handle with many parts and many linkage actions between the parts, the structure of the utility model is simpler and more reasonable, and the production cost is low; The action of opening the square tongue by hand is more stable and reliable, which greatly reduces its failure rate and its escape effect is better.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

【Description of drawings】

Fig. 1 is the perspective view of the utility model embodiment;

Fig. 2 is the first assembly diagram of Fig. 1;

FIG. 3 is the second assembly diagram of FIG. 1 .

【Detailed ways】

The utility model is an escape lock, which includes an oblique tongue assembly 2, a square tongue assembly 3 and a shift fork assembly 4 arranged on a lock body seat 1. The square tongue assembly 3 is controlled by a clamping plate 5, which includes There is a square tongue 31 and a square tongue plate 32, wherein the square tongue plate 32 slides horizontally along the square tongue guide post 6; the latch tongue assembly 2 includes a latch tongue 21 and a latch rod 22, and the shift fork assembly 4 acts on the latch tongue shift block 23 to slide the latch tongue assembly 2 horizontally. A linkage plate 7 is provided between the oblique tongue assembly 2 and the square tongue assembly 3. The structure of the linkage plate 7 can be a commonly used structure at the present stage. In this embodiment, it is set to be positioned around the square tongue The linkage plate column 8 on the square tongue plate 32 of the assembly 3 slides and rotates, and its one end 71 is connected with the latch bolt rod 22 of the latch bolt assembly 2, and the other end 72 can be arranged on the lock cylinder hole 11 of the lock body base 1 The effect of the lock cylinder (not shown in the figure) in. When using a key to open the door, turn the lock cylinder located in the lock cylinder hole 11 of the lock body base 1, the dial on the lock cylinder first pushes away the card plate 5, and then the dial pushes the square tongue assembly 3 toward the lock body seat on the one hand. 1, on the other hand, it pushes the linkage plate 7 to rotate around the linkage plate column 8 on the square tongue plate 32, and the upper end of the linkage plate 7 can push the latch tongue 21 of the latch bolt assembly 2 to slide towards the lock body seat 1, so that After the square tongue 31 and the oblique tongue 21 slide to the lock body seat 1, the operation of opening the door with the key has just been completed.

In order to realize the escape function of the escape lock in this utility model, as shown in Fig. 1-3, a clamp linkage piece 9 and a square tongue toggle piece 10 are arranged on the lock body base 1, and the clamp The linkage piece 9 and the square tongue toggle piece 10 can rotate independently around the same positioning column 200, and a shift fork of the shift fork assembly 4 is provided with a function that can act on the clamp linkage piece 9 and the square tongue toggle piece 10 respectively. The first push table 401 and the second push table 402 of one end 91,101 of the card plate linkage piece 9 and the other end 92,102 of the square tongue shifting piece 10 can act on the card plate 5 and the square tongue assembly 3 respectively On, here, the other end (lower end) 92 of the clamping plate linkage piece 9 acts on the clamping post 51 of the clamping plate 5, and the other end (lower end) of the square tongue shifting piece 10 acts on the square tongue assembly 3 On the boss 33 at the bottom of the square tongue plate 32. When the clamping plate linkage 9 is pushed away from the clamping plate 5 (here, the clamping plate 5 slides upward), the square tongue toggle piece 10 can push the square tongue assembly 3 to slide in the lock body seat 1 . When there is an emergency and you want to escape, turn the handle on the escape lock, and when the shift fork assembly 4 moves the bolt assembly 2 to slide into the lock body seat 1, the shift fork with the first and second push platforms 401, 402 follows Rotate, and when the first push table 401 first acts on the clamping plate linkage 9 to make it rotate counterclockwise around the positioning column 200, it can push the clamping plate 5 to slide upwards, so that the clamping plate 5 can release the limit of the other tongue plate 32 Then the second push platform 402 acts on the square tongue toggle piece 10 again, so that it can promote the square tongue plate 32 and the square tongue 31 connected with it to the lock body seat 1 when it rotates counterclockwise around the positioning post 200 Sliding, like this, when oblique tongue 21, square tongue 31 all entered in the lock body seat 1, just can open the door and escaped, and the utility model is by the clamping plate link piece 9 that rotates around same positioning column 200 and square Tongue moving piece 10 realizes opening square tongue with handle, compared with the handle opening action with more parts and linkages between parts at the present stage, the structure of the present utility model is simpler and more reasonable, The production cost is low; at the same time, because there are fewer linkage actions between the components, the action of opening the square tongue by the handle is more stable and reliable, which greatly reduces its failure rate and improves its escape effect.

The shift fork assembly 4 can be a double shift fork or three shift fork structure. In this embodiment, in order to make the same escape lock suitable for a door with a left-hand door or a right-hand door, the shift fork assembly 4 is set to three Shift fork structure, which includes relatively rotatable upper shift fork 41, middle shift fork 42 and lower shift fork 43, the first and second pushing platforms 401, 402 are arranged on the middle shift fork 42, when installed Just adjust the installation direction of the handle bar according to whether the door is left or right.

The utility model is not limited to the above-mentioned specific embodiments, as long as the escape function is realized by opening the square tongue through the card plate linkage piece and the square tongue shifting piece rotating around the same positioning column, all fall within the protection scope of the present utility model .

Claims (5)

1. An escape lock, comprising a bolt assembly (2), a square tongue assembly (3) and a shift fork assembly (4) arranged on the lock body seat (1), and the square tongue assembly (3) consists of Clamp (5) control, a linkage plate (7) is provided between the oblique tongue assembly (2) and the square tongue assembly (3), it is characterized in that: a lock body seat (1) is provided with There are clamp linkage piece (9) and square tongue toggle piece (10), described clamp linkage piece (9) and square tongue toggle piece (10) can rotate independently around the same positioning post (200); A shift fork of the shift fork assembly (4) is provided with a first pushing platform (401) and a second pushing platform ( 402), the other end of the card board linkage piece (9) and the square tongue shifting piece (10) acts on the card board (5) and the square tongue assembly (3) respectively, in the described card board linkage piece ( 9) When the clamping plate (5) is pushed away, the square tongue moving piece (10) can push the square tongue assembly (3) to slide in the lock body seat (1). 2. An escape lock according to claim 1, characterized in that: the shift fork assembly (4) includes an upper shift fork (41), a middle shift fork (42) and a lower shift fork (43), The first and second pushing platforms (401), (402) are arranged on the middle shift fork (42). 3. An escape lock according to claim 1 or 2, characterized in that: the lower end of the clamping plate (9) acts on the clamping column (51) of the clamping plate (5); The lower end of the square tongue shifting piece (10) acts on the boss (33) at the bottom of the square tongue plate (32) of the square tongue assembly (3). 4. An escape lock according to claim 3, characterized in that the linkage plate (7) is wound around the linkage plate column (8) on the square tongue plate (32) of the square tongue assembly (3) Sliding and rotating, one end (71) is connected with the latch rod (22) of the latch assembly (2), and the other end (72) can be arranged in the lock cylinder hole (11) of the lock body seat (1) The lock cylinder effect. 5. An escape lock according to claim 1 or 2, characterized in that: the linkage plate (7) wraps around the linkage plate column ( 8) slide and rotate, one end (71) of which is connected with the latch rod (22) of the latch assembly (2), and the other end (72) can be provided with the lock cylinder hole (11) of the lock body seat (1) ) in the role of the lock cylinder.

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