Sliding door unlocking mechanism

Abstract

The utility model belongs to the technical field of unlocking mechanisms, and particularly relates to a sliding door unlocking mechanism which comprises an L-shaped base plate, a swing plate is rotationally connected to the front side wall of the vertical end of the L-shaped base plate through a rotating shaft, a hand shifting block is fixedly connected to the lower portion of the front side wall of the swing plate, and a telescopic mechanism is fixedly connected to one end of the swing plate. A moving block is fixedly connected to one end of the telescopic mechanism, a mounting piece is hinged to the lower end of the moving block, and a sliding rod is fixedly connected to the lower end of the mounting piece; through the arrangement of the L-shaped base plate, the rotating shaft, the swing part, the hand shifting block, the moving block, the mounting piece, the sliding rod, the sliding sleeve, the lock rod head and the reset spring, the lock rod head can be separated from the lock groove in the sliding door only by pushing the hand shifting block, unlocking is achieved, operation is easy, the stuck fault is not likely to happen, the auxiliary unlocking mechanism is arranged, unlocking can be conducted through a key, and the unlocking effect is good. The device has two unlocking methods and is convenient to use.

Description

Technical Field

[0001] The present application belongs to the technical field of unlocking mechanisms, and specifically relates to an unlocking mechanism for a sliding door. Background Art

[0002] Horizontal sliding doors are widely used in special places such as banks, airport terminals, subways, etc. Due to their frequent use and large number of uses, higher requirements are placed on the safety and reliability of their door lock mechanisms. The door locks currently used include nut locks or brakes. Nut locks require special profiles and are difficult to adjust, requiring repeated tests, resulting in high processing costs and low installation efficiency. Brake-type door locks are limited by braking torque and have certain safety issues.

[0003] In the Chinese patent sliding door unlocking mechanism (patent number: CN202945889U), the device includes a lock block arranged on the sliding door and an electromagnetic lock arranged on the fixed door, the electromagnetic lock includes a shell, an electromagnet and a lock tongue, and an inner unlocking device is also provided on the sliding door, which includes a left dial block and a right dial block respectively arranged on both sides of the sliding door, the left dial block and the right dial block are both installed on the sliding door through a rotary shaft, the two ends of the connecting rod are respectively hinged on the left dial block and the right dial block, and the rocker D of the right dial block is hinged to the top rod. The device has a simple structure and is easy to operate. It can be unlocked by program control in normal operation mode, and the operator can manually open the sliding door in emergency operation mode to realize manual unlocking and door opening action. However, the device has poor reliability and is easy to get stuck and fail during work, resulting in poor operation. Utility Model Content

[0004] The purpose of the present application is to address the shortcomings of the prior art and to design a sliding door unlocking mechanism by arranging an L-shaped base plate, a rotating shaft, a swing, a hand-shift block, a moving block, a mounting plate, a sliding rod, a sliding sleeve, a locking rod head and a reset spring. When the unlocking operation is performed, the hand-shift block is pushed clockwise to drive the swing plate to swing on the L-shaped base plate, which can pull the moving block fixed to the telescopic mechanism to swing, and then pull the locking rod head fixed to the sliding rod upward until it leaves the lock slot on the sliding door to achieve unlocking. At the same time, the reset spring is pulled to generate elastic force. When the hand-shift block is released, the locking rod head can be reset by utilizing the elastic force of the reset spring. This solves the problem that the current sliding door unlocking mechanism has poor reliability, is easily stuck and fails during work, and causes poor operation.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A sliding door unlocking mechanism comprises an L-shaped base plate, a front side wall of a vertical end of the L-shaped base plate is rotatably connected to a swing plate through a rotating shaft, a lower portion of the front side wall of the swing plate is fixedly connected to a hand dial block, one end of the swing plate is fixedly connected to a telescopic mechanism, one end of the telescopic mechanism is fixedly connected to a moving block, the lower end of the moving block is hingedly connected to a mounting plate, the lower end of the mounting plate is fixedly connected to a sliding rod, a sliding sleeve is embedded in the side wall of the lateral end of the L-shaped base plate, the lower end of the sliding rod passes through the sliding sleeve and is fixedly connected to a locking rod head, a reset spring is fixedly connected between the mounting plate and the sliding sleeve, the reset spring is sleeved on the sliding rod, and the upper side wall of the L-shaped base plate is fixedly connected to an auxiliary unlocking mechanism, and one end of the auxiliary unlocking mechanism is hingedly connected to the moving block.

[0007] Preferably, the auxiliary unlocking mechanism includes a fixed plate fixed on the upper side wall of the L-shaped base plate, the side wall of the fixed plate is fixedly connected to a lock core body, the lock core body is connected to a rotating rod in a sleeve-fitting manner, one side of the rotating rod is fixedly connected to a rocker arm, one end of the rocker arm is hingedly connected to a connecting rod, and one end of the connecting rod is hingedly connected to a moving block.

[0008] Preferably, the telescopic mechanism includes a rectangular shell fixedly connected to the swing plate, a slider is slidably connected to the inner wall of the rectangular shell, a moving rod is fixedly connected to one side of the slider, one end of the moving rod passes through the rectangular shell and is fixedly connected to the moving block, a buffer spring is fixedly connected between the slider and the inner wall of the rectangular shell, and the buffer spring is sleeved on the moving rod.

[0009] Preferably, a sliding hole is opened at one end of the rectangular shell, and the moving rod is arranged through the sliding hole.

[0010] Preferably, the inner side wall of the sliding sleeve is slidably connected to the outer side wall of the sliding rod.

[0011] Preferably, a limit stopper is fixedly connected to the front side wall of the L-shaped base plate, and an upper side wall of the limit stopper is disposed against a lower side wall of the swing plate.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] 1. The present application provides an L-shaped base plate, a rotating shaft, a swing, a hand-shift block, a moving block, a mounting plate, a sliding rod, a sliding sleeve, a locking rod head and a reset spring. When the unlocking operation is performed, the hand-shift block is pushed clockwise to drive the swing plate to swing on the L-shaped base plate, which can pull the moving block fixed to the telescopic mechanism to swing, and then pull the locking rod head fixed to the sliding rod to move up until it leaves the lock slot on the sliding door to achieve unlocking. At the same time, the reset spring is pulled to generate elastic force. When the hand-shift block is released, the locking rod head can be reset by utilizing the elastic force of the reset spring. The operation is simple, the unlocking is convenient, the structure is stable and firm, stable working performance can be guaranteed, and failure is not prone to occur.

[0014] 2. The present application sets up an auxiliary unlocking mechanism. When the key is inserted into the lock core body, the core of the lock core body can be rotated to drive the rotating rod to rotate, thereby driving the rocker arm to swing upward, thereby pulling the connecting rod to drive the moving block to move, thereby pulling the lock rod head fixed to the sliding rod upward until it leaves the lock slot on the sliding door to achieve unlocking. This device has two unlocking methods and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0016] Figure 2 For this application Figure 2 A schematic diagram of the enlarged structure at point A;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present application;

[0018] Figure 4 For this application Figure 3 Schematic diagram of the enlarged structure at B.

[0019] Among them: 1. L-shaped base plate; 2. rotating shaft; 3. swing plate; 4. hand dial block; 5. moving block; 6. mounting plate; 7. sliding rod; 8. sliding sleeve; 9. lock rod head; 10. reset spring; 11. fixing plate; 12. lock core body; 13. rotating rod; 14. rocker rod; 15. connecting rod; 16. rectangular shell; 17. slider; 18. moving rod; 19. buffer spring; 20. limit block. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4A sliding door unlocking mechanism comprises an L-shaped base plate 1, a front side wall of a vertical end of the L-shaped base plate 1 is rotatably connected with a swing plate 3 through a rotating shaft 2, a hand-operated block 4 is fixedly connected to the lower part of the front side wall of the swing plate 3, one end of the swing plate 3 is fixedly connected with a telescopic mechanism, one end of the telescopic mechanism is fixedly connected with a moving block 5, the lower end of the moving block 5 is hingedly connected with a mounting plate 6, the lower end of the mounting plate 6 is fixedly connected with a sliding rod 7, a sliding sleeve 8 is embedded in the lateral end side wall of the L-shaped base plate 1, the lower end of the sliding rod 7 passes through the sliding sleeve 8 and is fixedly connected with a locking rod head 9, a reset spring 10 is fixedly connected between the mounting plate 6 and the sliding sleeve 8, and the reset spring 10 is sleeved on the sliding rod 7. When performing the unlocking operation, the hand-operated block 4 is pushed clockwise to drive the swing plate 3 to swing on the L-shaped base plate 1, which can pull the moving block 5 fixed to the telescopic mechanism to swing, and then pull the lock rod head 9 fixed to the slide bar 7 to move up until it leaves the lock slot on the sliding door to achieve unlocking. At the same time, the reset spring 10 is pulled to generate elastic force. When the hand-operated block 4 is released, the lock rod head 9 is reset by the elastic force of the reset spring 10. The operation is simple, the unlocking is convenient, the structure is stable and firm, it can ensure stable working performance, and it is not easy to fail. An auxiliary unlocking mechanism is fixedly connected to the upper side wall of the L-shaped base plate 1, and one end of the auxiliary unlocking mechanism is hingedly connected to the moving block 5.

[0021] As a preferred method, Figure 1 and Figure 2 As shown: the auxiliary unlocking mechanism includes a fixed plate 11 fixed to the side wall of the L-shaped base plate 1, and the side wall of the fixed plate 11 is fixedly connected with a lock core body 12, and the lock core body 12 is connected with a rotating rod 13 in a sleeve-fitting manner, which means that the rotatable part of the lock core body 12 after the key is inserted is fixedly connected to the rotating rod 13, and one side of the rotating rod 13 is fixedly connected with a swing rod 14, and one end of the swing rod 14 is hingedly connected to a connecting rod 15, and one end of the connecting rod 15 is hingedly connected to the moving block 5. When the key is inserted into the lock core body 12, the core body of the rotatable lock core body 12 drives the rotating rod 13 to rotate, and then drives the swing rod 14 to swing upward, and then pulls the connecting rod 15 to drive the moving block 5 to move, and then pulls the lock rod head 9 fixed to the sliding rod 7 to move upward until it leaves the lock groove on the sliding door, thereby realizing unlocking, so that the device has two unlocking methods and is easy to use.

[0022] As a preferred method, Figure 4As shown: the telescopic mechanism includes a rectangular shell 16 fixedly connected to the swing plate 3, a slider 17 is slidably connected to the inner wall of the rectangular shell 16, a moving rod 18 is fixedly connected to one side of the slider 17, one end of the moving rod 18 passes through the rectangular shell 16 and is fixedly connected to the moving block 5, a buffer spring 19 is fixedly connected between the slider 17 and the inner wall of the rectangular shell 16, and the buffer spring 19 is sleeved on the moving rod 18. When the swing plate 3 swings to drive the moving block 5 to move, the moving block 5 can only maintain straight up and down displacement due to the restriction of the slide bar 7. At this time, the slider 17 fixed to the moving rod 18 can be pulled to slide and displace in the rectangular shell 16 to ensure the displaceability of the moving block 5. At the same time, the buffer spring 19 is squeezed to generate elastic force to buffer the pulling force on the moving block 5 to avoid jamming.

[0023] As a preferred embodiment, a sliding hole is opened at one end of the rectangular shell 16, and the moving rod 18 is arranged through the sliding hole to facilitate the displacement of the moving rod 18.

[0024] As a preferred manner, the inner wall of the sliding sleeve 8 is slidably connected to the outer wall of the sliding rod 7 , so as to facilitate the sliding displacement of the sliding rod 7 in the sliding sleeve 8 .

[0025] As a preferred embodiment, the front side wall of the L-shaped base plate 1 is fixedly connected to a limit stopper 20, and the upper side wall of the limit stopper 20 is arranged to abut against the lower side wall of the swing plate 3, which can limit the swing of the swing plate 3 and prevent it from swinging excessively.

[0026] Working principle: When the unlocking operation is performed, the hand-operated block 4 is pushed clockwise to drive the swing plate 3 to swing on the L-shaped base plate 1, which can pull the moving block 5 fixed to the telescopic mechanism to swing, and then pull the lock rod head 9 fixed to the slide bar 7 to move up until it leaves the lock slot on the sliding door to achieve unlocking. At the same time, the reset spring 10 is pulled to generate elastic force. When the hand-operated block 4 is released, the lock rod head 9 can be reset by the elastic force of the reset spring 10. The operation is simple, the unlocking is convenient, the structure is stable and firm, and the stable working performance can be guaranteed, and it is not easy to fail.

[0027] Secondly, insert the key into the lock core body 12, and the core of the rotatable lock core body 12 drives the rotating rod 13 to rotate, thereby driving the swing rod 14 to swing upward, thereby pulling the connecting rod 15 to drive the moving block 5 to move, and then pulling the lock rod head 9 fixed to the sliding rod 7 to move upward until it leaves the lock groove on the sliding door to achieve unlocking, so that the device has two unlocking methods and is easy to use.

Claims

1. A sliding door unlocking mechanism, comprising an L-shaped base plate (1), characterized in that: The front side wall of the vertical end of the L-shaped base plate (1) is rotatably connected to a swing plate (3) through a rotating shaft (2); the lower part of the front side wall of the swing plate (3) is fixedly connected to a hand-operated block (4); one end of the swing plate (3) is fixedly connected to a telescopic mechanism; one end of the telescopic mechanism is fixedly connected to a moving block (5); the lower end of the moving block (5) is hingedly connected to a mounting plate (6); the lower end of the mounting plate (6) is fixedly connected to a sliding rod (7); a sliding sleeve (8) is embedded in the lateral end side wall of the L-shaped base plate (1); the lower end of the sliding rod (7) passes through the sliding sleeve (8) and is fixedly connected to a locking rod head (9); a reset spring (10) is fixedly connected between the mounting plate (6) and the sliding sleeve (8); the reset spring (10) is sleeved on the sliding rod (7); the upper side wall of the L-shaped base plate (1) is fixedly connected to an auxiliary unlocking mechanism; one end of the auxiliary unlocking mechanism is hingedly connected to the moving block (5).

2. A sliding door unlocking mechanism according to claim 1, characterized in that: The auxiliary unlocking mechanism comprises a fixing plate (11) fixed to the upper side wall of the L-shaped base plate (1); the side wall of the fixing plate (11) is fixedly connected to a lock core body (12); the lock core body (12) is connected to a rotating rod (13) in a sleeve-fitting manner; one side of the rotating rod (13) is fixedly connected to a swing rod (14); one end of the swing rod (14) is hingedly connected to a connecting rod (15); one end of the connecting rod (15) is hingedly connected to a moving block (5).

3. A sliding door unlocking mechanism according to claim 1, characterized in that: The telescopic mechanism comprises a rectangular shell (16) fixedly connected to the swing plate (3); a slider (17) is slidably connected to the inner wall of the rectangular shell (16); a moving rod (18) is fixedly connected to one side of the slider (17); one end of the moving rod (18) passes through the rectangular shell (16) and is fixedly connected to the moving block (5); a buffer spring (19) is fixedly connected between the slider (17) and the inner wall of the rectangular shell (16); and the buffer spring (19) is sleeved on the moving rod (18).

4. A sliding door unlocking mechanism according to claim 3, characterized in that: A sliding hole is provided at one end of the rectangular shell (16), and the moving rod (18) is arranged through the sliding hole.

5. The sliding door unlocking mechanism according to claim 1, characterized in that: The inner side wall of the sliding sleeve (8) is slidably connected to the outer side wall of the sliding rod (7).

6. The sliding door unlocking mechanism according to claim 1, characterized in that: The front side wall of the L-shaped base plate (1) is fixedly connected to a limit stopper (20), and the upper side wall of the limit stopper (20) is arranged to abut against the lower side wall of the swing plate (3).

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