Simple door lock durability test mechanism

CN224772564UActive Publication Date: 2026-09-18JIANGSU MINGXIN TRANSPORTATION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202522009906.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-18
Publication Date
2026-09-18
Estimated Expiration
2035-09-18

AI Technical Summary

Technical Problem

[0004]本实用新型提出一种简易门锁耐久试验机构,解决了相关技术中的应力方向单一和可靠性不足问题

Benefits of technology

[0012] 1. This utility model, through the setting of a lock body, unlocking mechanism and other structures, connects the door body to the handle through the lock body. In the unlocking mechanism, the opening and closing rods at both ends of the hinge shaft contact the handle and the unlocking cylinder respectively. The unlocking cylinder drives the hinge shaft to rotate, and the upper opening and closing rod pushes the handle to complete the unlocking. The lower end generates a reverse pulling force to simulate bidirectional stress. The electric control box adjusts the pressure and drives the cycle to verify the mechanical fatigue characteristics of the lock body repeatedly unlocking and unlocking.

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Abstract

The utility model relates to door lock test technical field, proposes a simple and easy door lock endurance test mechanism, including frock main part, the one side fixed connection of frock main part has end wall, is provided with the door body through setting up on the end wall, is provided with the lock body on the door body, is provided with the handle with the center axle axial setting on the lock body, is provided with the door opening mechanism on the frock main part, one end of door opening mechanism with door body connects, door opening mechanism is used for the opening and closing of door body, through the setting of lock body, unlocking mechanism etc.
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Description

Technical Field

[0001] This utility model relates to the field of door lock testing technology, specifically to a simple door lock durability testing mechanism. Background Technology

[0002] A simple door lock durability testing mechanism is mainly used to verify the mechanical life of door locks under repeated unlocking and opening actions.

[0003] Existing technologies, such as the wound-drive motor solution, require complex cabling on both sides of the test chamber wall. This is cumbersome and the cables are prone to loosening, leading to poor stability during testing. Furthermore, the door lock's opening and closing actions rely on synchronous motor rotation control. Due to mechanical delays and differences in cable elasticity, asynchronous actions often occur. Accumulated short time differences can easily cause test errors, affecting the accuracy of durability assessments. More importantly, traditional tests involve a single stress direction, simulating only the force applied in one direction during unlocking or closing. This fails to accurately reflect the impact of bidirectional stress (such as the pushing and pulling forces during unlocking) on ​​the door lock's mechanical lifespan in actual use, resulting in distorted durability assessments and making it difficult to effectively verify the fatigue characteristics and performance degradation patterns of the lock body, handle, and transmission mechanism under complex stress. In addition, fluctuations in motor speed directly affect impact force control. The lack of a precise control mechanism makes test results difficult to reproduce, compromising reliability. Utility Model Content

[0004] This invention proposes a simple door lock durability testing mechanism, which solves the problems of single stress direction and insufficient reliability in related technologies.

[0005] The technical solution of this utility model is as follows: A simple door lock durability testing mechanism includes a tooling body, an end wall fixedly connected to one side of the tooling body, a door body provided on the end wall, a lock body provided on the door body, a handle axially arranged with its central axis on the lock body, an opening mechanism provided on the tooling body, one end of the opening mechanism being connected to the door body, the opening mechanism being used for opening and closing the door body, and an unlocking mechanism provided on one side of the door body, the unlocking mechanism being used for opening and closing the lock body.

[0006] As a preferred embodiment of this utility model, the inner wall of the end wall is provided with a fitted shock-absorbing foam.

[0007] As a preferred embodiment of this utility model, the unlocking mechanism includes a first fixed frame and a second fixed frame. The first fixed frame is located at the bottom corner of the door body opposite to the direction of the lock body. A first fixed post is fixedly connected to one side of the first fixed frame. The second fixed frame is located on one side of the handle on the door body. A second fixed post is fixedly connected to one side of the second fixed frame. A hinge shaft is movably sleeved on the second fixed post. Two vertically symmetrically distributed opening and closing rods are provided on the outer circumference of the hinge shaft. The opening and closing rod at the upper end of the hinge shaft contacts the handle. A first hinge plate is provided at the bottom of the opening and closing rod at the lower end of the hinge shaft. An unlocking cylinder is movably hinged on both the first fixed post and the second fixed post.

[0008] As a preferred embodiment of this utility model, the output end of the unlocking cylinder is equipped with a telescopic shaft, and one end of the telescopic shaft and one end of the unlocking cylinder are both provided with a first hinge block. The two first hinge blocks are respectively movably sleeved on the first fixed post and the second fixed post.

[0009] As a preferred embodiment of this utility model, the door opening mechanism consists of a support bracket, a second hinge plate, and a door opening cylinder. The second hinge plate is fixedly connected to the side of the door body near the handle. The support bracket is fixedly connected to the inside of the tooling body. One end of the support bracket is fixedly connected to an inner groove cylinder. A rotating column is rotatably installed inside the inner groove cylinder. A tension shaft is installed at the output end of the door opening cylinder. A second hinge block is fixedly connected to one end of both the tension shaft and the door opening cylinder. The second hinge block is movably sleeved on the rotating column and the second hinge plate, respectively.

[0010] As a preferred embodiment of this utility model, the experimental mechanism further includes an electrical control box disposed outside the main body of the tooling. The electrical control box is electrically connected to the unlocking cylinder and the door opening cylinder, and the electrical control box is used to regulate the pressure of the unlocking cylinder and the door opening cylinder.

[0011] The working principle and beneficial effects of this utility model are as follows:

[0012] 1. This utility model, through the setting of a lock body, unlocking mechanism and other structures, connects the door body to the handle through the lock body. In the unlocking mechanism, the opening and closing rods at both ends of the hinge shaft contact the handle and the unlocking cylinder respectively. The unlocking cylinder drives the hinge shaft to rotate, and the upper opening and closing rod pushes the handle to complete the unlocking. The lower end generates a reverse pulling force to simulate bidirectional stress. The electric control box adjusts the pressure and drives the cycle to verify the mechanical fatigue characteristics of the lock body repeatedly unlocking and unlocking.

[0013] 2. This utility model, through the setting of a door opening mechanism, a door opening cylinder and other structures, the door opening mechanism support bracket is fixed to the main body of the tooling, the rotating column is used as the fulcrum, and the door opening cylinder is connected to the door hinge plate through the tension shaft. During the test, the unlocking mechanism unlocks first, and then the door opening cylinder pushes the door to move and open. The electrical control box synchronously controls the action sequence to simulate a continuous dynamic scene and cyclically verify the anti-vibration and impact capability and mechanical wear characteristics under the linkage state of unlocking and opening. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the overall structure of the box body of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the unlocking mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the door opening mechanism of this utility model.

[0019] In the diagram: 1. Tooling body; 11. Support bracket; 111. Inner groove cylinder;

[0020] 2. End wall; 21. Shock-absorbing foam;

[0021] 3. Door body;

[0022] 4. Lock body; 41. Handle;

[0023] 5. Unlocking mechanism; 51. First fixed frame; 511. First fixed post; 52. Second fixed frame; 521. Second fixed post; 53. Hinge shaft; 531. Opening / closing rod; 532. First hinge plate; 54. Unlocking cylinder; 541. Telescopic shaft; 542. First hinge block;

[0024] 6. Door opening mechanism; 61. Rotating column; 62. Second hinge plate; 63. Door opening cylinder; 631. Tension shaft; 632. Second hinge block;

[0025] 7. Electrical control box. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] like Figures 1-4 As shown, a simple door lock durability testing mechanism includes a tooling body 1, an end wall 2 fixedly connected to one side of the tooling body 1, a door body 3 provided on the end wall 2, a lock body 4 provided on the door body 3, a handle 41 axially arranged with its central axis on the lock body 4, an opening mechanism 6 provided on the tooling body 1, one end of the opening mechanism 6 being connected to the door body 3, the opening mechanism 6 being used for opening and closing the door body 3, and an unlocking mechanism 5 provided on one side of the door body 3, the unlocking mechanism 5 being used for opening and closing the lock body 4;

[0028] The inner wall of end wall 2 is provided with a fitted shock-absorbing foam 21;

[0029] The unlocking mechanism 5 includes a first fixed frame 51 and a second fixed frame 52. The first fixed frame 51 is located at the bottom corner of the door body 3 opposite to the direction of the lock body 4. A first fixed post 511 is fixedly connected to one side of the first fixed frame 51. The second fixed frame 52 is located on one side of the handle 41 on the door body 3. A second fixed post 521 is fixedly connected to one side of the second fixed frame 52. A hinge shaft 53 is movably sleeved on the second fixed post 521. Two vertically symmetrically distributed opening and closing rods 531 are provided on the outer circumference of the hinge shaft 53. The opening and closing rod 531 at the upper end of the hinge shaft 53 contacts the handle 41. A first hinge plate 532 is provided at the bottom of the opening and closing rod 531 at the lower end of the hinge shaft 53. An unlocking cylinder 54 is movably hinged on both the first fixed post 511 and the second fixed post 521.

[0030] The output end of the unlocking cylinder 54 is equipped with a telescopic shaft 541. One end of the telescopic shaft 541 and one end of the unlocking cylinder 54 are both provided with a first hinge block 542. The two first hinge blocks 542 are respectively movably sleeved on the first fixed post 511 and the second fixed post 521.

[0031] The door opening mechanism 6 consists of a support bracket 11, a second hinge plate 62, and a door opening cylinder 63. The second hinge plate 62 is fixedly connected to the side of the door body 3 near the handle 41. The support bracket 11 is fixedly connected to the inside of the tooling body 1. One end of the support bracket 11 is fixedly connected to an inner groove cylinder 111. A rotating column 61 is rotatably installed inside the inner groove cylinder 111. A tension shaft 631 is installed at the output end of the door opening cylinder 63. A second hinge block 632 is fixedly connected to one end of both the tension shaft 631 and the door opening cylinder 63. The second hinge block 632 is movably sleeved on the rotating column 61 and the second hinge plate 62, respectively.

[0032] The experimental apparatus also includes an electrical control box 7 located outside the main body 1 of the tooling. The electrical control box 7 is electrically connected to the unlocking cylinder 54 and the door opening cylinder 63. The electrical control box 7 is used to regulate the pressure of the unlocking cylinder 54 and the door opening cylinder 63.

[0033] Example 1

[0034] In this embodiment, the fixture body 1 serves as a fixed end wall 2 as a bearing base. The shock-absorbing foam 21 on the inner wall of the end wall 2 absorbs the vibration energy of the test through deformation, reducing the impact of external impact on the test accuracy. The door body 3 is connected to the handle 41 through the lock body 4, forming a complete locking and unlocking mechanism. The first fixed frame 51 of the unlocking mechanism 5 is located at the bottom corner of the door body 3 away from the lock body 4, and the second fixed frame 52 is adjacent to the handle 41. The two are supported by the hinge shaft 53 through the fixed column. The upper opening and closing rod 531 of the hinge shaft 53 contacts the end of the handle 41, and the lower opening and closing rod 531 is hinged to the telescopic shaft 541 of the unlocking cylinder 54 through the first hinge plate 532. When the unlocking cylinder 54 extends or retracts, the hinge shaft 53 rotates around the fixed column, and the upper opening and closing rod 531 pushes along the axial direction of the handle 41 to rotate it, completing the unlocking action; the lower opening and closing rod 531 simultaneously generates a reverse pulling force, simulating the bidirectional stress applied by the operator during actual unlocking, avoiding test deviations caused by force in one direction. The electrical control box 7 drives the cylinder pressure in a cyclic manner, focusing on verifying the mechanical fatigue characteristics and performance degradation law of the lock body 4 under repeated unlocking and unlocking actions, thus solving the problem of distortion in durability assessment caused by the single stress direction in traditional testing.

[0035] Example 2

[0036] In this embodiment, the support bracket 11 of the door opening mechanism 6 is fixed to the tooling body 1. The rotating column 61 inside the inner groove cylinder 111 serves as the rotation fulcrum. The door opening cylinder 63 is hinged to the second hinge plate 62 on the door body 3 via the tension shaft 631. During the test, the unlocking mechanism 5 first pushes the handle 41 to unlock the lock body 4 via the opening and closing rod 531. Then, the tension shaft 631 of the door opening cylinder 63 extends, pushing the second hinge plate 62 to drive the door body 3 to move horizontally along the door frame track and open. The electrical control box 7 synchronously controls the actions of the unlocking cylinder 54 and the door opening cylinder 63. The unlocking cylinder 54 is triggered first to complete the unlocking, and after a delay, the door opening cylinder 63 is started to push the door body 3, simulating the continuous dynamic scene of the door body 3 opening and closing. By cyclically executing the unlocking and opening cycle, the vibration and shock resistance and mechanical wear characteristics of the door lock in the linkage state of the unlocking mechanism 5 and the door opening mechanism 6 are verified. This solves the problem of linkage failure risk caused by the separation of unlocking and opening actions in traditional tests, and ensures the reliability of the mechanism in actual operation.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A simple door lock durability testing mechanism, comprising a fixture body (1), wherein an end wall (2) is fixedly connected to one side of the fixture body (1), a door body (3) is provided on the end wall (2), a lock body (4) is provided on the door body (3), and a handle (41) is provided on the lock body (4) axially arranged with its central axis, characterized in that, The tooling body (1) is provided with a door opening mechanism (6), one end of which is connected to the door body (3). The door opening mechanism (6) is used for opening and closing the door body (3). A lock opening mechanism (5) is provided on one side of the door body (3). The lock opening mechanism (5) is used for opening and closing the lock body (4).

2. The simplified door lock durability testing mechanism according to claim 1, characterized in that, The inner wall of the end wall (2) is provided with a fitted shock-absorbing foam (21).

3. The simplified door lock durability testing mechanism according to claim 1, characterized in that, The unlocking mechanism (5) includes a first fixing frame (51) and a second fixing frame (52). The first fixing frame (51) is located at the bottom corner of the door body (3) opposite to the direction of the lock body (4). A first fixing post (511) is fixedly connected to one side of the first fixing frame (51). The second fixing frame (52) is located on one side of the handle (41) on the door body (3). A second fixing post (521) is fixedly connected to one side of the second fixing frame (52). (521) is movably fitted with a hinge shaft (53), and two vertically symmetrically distributed opening and closing rods (531) are provided on the outer circumferential surface of the hinge shaft (53). The opening and closing rod (531) at the upper end of the hinge shaft (53) is in contact with the handle (41), and a first hinge plate (532) is provided at the bottom of the opening and closing rod (531) at the lower end of the hinge shaft (53). The first fixed post (511) and the second fixed post (521) are movably hinged together with an unlocking cylinder (54).

4. The simplified door lock durability testing mechanism according to claim 3, characterized in that, The output end of the unlocking cylinder (54) is equipped with a telescopic shaft (541). One end of the telescopic shaft (541) and one end of the unlocking cylinder (54) are provided with a first hinge block (542). The two first hinge blocks (542) are respectively movably sleeved on the first fixed post (511) and the second fixed post (521).

5. A simplified door lock durability testing mechanism according to claim 3, characterized in that, The door opening mechanism (6) consists of a support bracket (11), a second hinge plate (62), and a door opening cylinder (63). The second hinge plate (62) is fixedly connected to the side of the door body (3) near the handle (41). The support bracket (11) is fixedly connected to the inside of the tooling body (1). One end of the support bracket (11) is fixedly connected to an inner groove cylinder (111). A rotating column (61) is rotatably installed inside the inner groove cylinder (111). A tension shaft (631) is installed at the output end of the door opening cylinder (63). A second hinge block (632) is fixedly connected to one end of both the tension shaft (631) and the door opening cylinder (63). The second hinge block (632) is movably sleeved on the rotating column (61) and the second hinge plate (62), respectively.

6. The simplified door lock durability testing mechanism according to claim 5, characterized in that, The experimental apparatus also includes an electrical control box (7) located outside the tooling body (1). The electrical control box (7) is electrically connected to the unlocking cylinder (54) and the door opening cylinder (63). The electrical control box (7) is used to regulate the pressure of the unlocking cylinder (54) and the door opening cylinder (63).