Auxiliary device for testing torsion of door lock

Abstract

The utility model relates to the technical field of door lock torsion testing, and discloses a door lock torsion testing auxiliary device which comprises an upper clamping block, a lower clamping block, a movable rod and a threaded rod, the lower clamping block is located at the bottom of the upper clamping block, clamping grooves are formed in one side of the lower clamping block and one side of the upper clamping block, and the two ends of the bottom of the movable rod movably penetrate through the upper clamping block. According to the scheme, by rotating the nut, the nut pushes the movable rod to ascend in the rotating process, the movable rod drives the lower clamping block to ascend and is matched with the upper clamping block to clamp a door lock rotating shaft, the upper clamping block clamps the door lock rotating shaft, the upper clamping block clamps the door lock rotating shaft, and the upper clamping block clamps the door lock rotating shaft. And then an external torque wrench is used for rotating the rotating piece to drive the lower clamping block and the upper clamping block to synchronously rotate, so that the aim of assisting the door lock torque test can be fulfilled in the synchronous rotation process of the lower clamping block and the upper clamping block, and the door lock torque cannot fall off from the door lock rotating shaft.

Description

Technical Field

[0001] This application relates to the field of door lock torque testing technology, and in particular to an auxiliary device for door lock torque testing. Background Technology

[0002] As an important part of home furnishings, door locks are required to protect privacy while also being easy to open and close. A typical door lock consists of an outer handle, a pivot, an inner handle, and a lock body. The pivot is connected to the inner handle, and the lock body is connected to the pivot for transmission. Pressing down on the inner handle causes the pivot to move the bolt in the lock body, thus unlocking the door. After door locks are manufactured, they need to undergo torque testing, which requires the use of torque testing auxiliary devices.

[0003] A utility model patent with Chinese patent authorization announcement number CN220418702U discloses a door lock torque testing auxiliary device, which includes a mounting sleeve and a force-applying component. The mounting sleeve has a mounting cavity extending through both ends of the mounting sleeve, and a first opening is formed on one side of the mounting sleeve. The mounting cavity matches the structure on the door lock's rotating shaft, and the mounting sleeve is used to securely mount to the door lock through the mounting cavity. The force-applying component is fixed to the end face of the mounting sleeve and is used to connect with a torque-applying tool. Compared with the prior art, the door lock torque testing auxiliary device provided by this utility model can be fitted and secured to the door lock and is compatible with torque-applying tools. When a torque test is required, simply fasten the mounting sleeve to the door lock and apply torque to the force-applying component using a torque application tool. This allows for direct torque testing of door locks in rail transit products with limited design space. In the comparison document, the mounting sleeve is fastened to the door lock and torque is applied to the force-applying component using a torque application tool. However, the mounting sleeve is not completely fitted onto the door lock, so it may fall off during the torque test. Utility Model Content

[0004] To address the issue of fastening the mounting sleeve to the door lock and applying torque to the force-applying component using a torque-applying tool, where the mounting sleeve is not fully fitted onto the door lock and may therefore detach during torque testing, this application provides an auxiliary device for door lock torque testing.

[0005] The door lock torque testing auxiliary device provided in this application adopts the following technical solution:

[0006] A door lock torque testing auxiliary device includes an upper locking block, a lower locking block, a movable rod, and a threaded rod. The lower locking block is located at the bottom of the upper locking block. Both sides of the lower locking block and the upper locking block have locking grooves. Both ends of the bottom of the movable rod movably pass through the upper locking block. The two ends of the bottom of the movable rod are welded to the two ends of the top of the lower locking block, respectively. The threaded rod is fixedly installed in the middle of the top of the upper locking block by an installation component. A nut is threaded onto the middle of the threaded rod. The top of the nut abuts against the inner top wall of the movable rod. A rotating component is installed on one side of the upper locking block.

[0007] Preferably, the mounting component consists of a mounting block and two screws. The mounting block is located at the center of the top of the upper locking block, and the two screws are threaded through both ends of the top of the mounting block, and both screws are threadedly connected to the upper locking block.

[0008] Preferably, the rotating component consists of a hexagonal rotating block and two limiting rods. The hexagonal rotating block is welded to one side of the upper locking block, and two insertion holes are opened at the edge of the top of the lower locking block. The two limiting rods are welded to the back side of the lower locking block, and the two limiting rods are respectively movably inserted into the two insertion holes.

[0009] Preferably, rubber pads are attached to the inside of the slot on one side of the upper card block and the inside of the slot on the lower card block.

[0010] In summary, this application includes the following beneficial technical effects: by rotating the nut, the nut pushes the movable rod to rise during the rotation, and the movable rod drives the lower locking block to rise and cooperate with the upper locking block to clamp the door lock shaft. Then, by using an external torque wrench to rotate the rotating component, the lower locking block and the upper locking block rotate synchronously. During the synchronous rotation of the lower locking block and the upper locking block, the purpose of assisting in the door lock torque test can be achieved, and at the same time, it will not fall off the door lock shaft. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the application.

[0012] Figure 2 This is a side view structural diagram of the first embodiment of the application.

[0013] Figure 3 This is a partial structural breakdown diagram of the first embodiment of the application.

[0014] Explanation of reference numerals in the attached drawings: 11. Upper locking block; 12. Lower locking block; 13. Movable rod; 14. Threaded rod; 15. Nut; 2. Mounting component; 21. Mounting block; 22. Screw; 3. Rotating component; 31. Hexagonal rotating block; 32. Limiting rod; 4. Rubber pad. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail.

[0016] Example 1:

[0017] A door lock torque testing auxiliary device, referring to Figure 1-3 The lower locking block 12 is located at the bottom of the upper locking block 11. Both the lower locking block 12 and the upper locking block 11 have slots on one side. Rubber pads 4 are attached to the inside of the slots on both sides of the upper locking block 11 and the lower locking block 12. These pads increase the friction between the upper locking block 11, the lower locking block 12, and the door lock shaft, thereby increasing the stability after contact between them. Both ends of the bottom of the movable rod 13 extend through the upper locking block 11. The bottom ends of the movable rod 13 are welded to the top ends of the lower locking block 12. The threaded rod 14 is fixedly installed at the center of the top of the upper locking block 11 via the mounting piece 2. The threaded rod 14 is self-locking. The self-locking condition depends on the thread helix angle, the coefficient of friction, and the load applied. The self-locking condition can be calculated using the following formula: Self-locking condition = Coefficient of friction × tan(helix angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above content is all existing technology. In practical applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here. The mounting part 2 consists of a mounting block 21 and two screws 22. The mounting block 21 is located in the middle of the top of the upper locking block 11. The two screws 22 are threaded through both ends of the top of the mounting block 21. Both screws 22 are threadedly connected to the upper locking block 11, thereby connecting and fixing the threaded rod 14 to the upper locking block 11. The middle of the threaded rod 14 is threaded with a nut 15. The top of the nut 15 abuts against the inner top wall of the movable rod 13, and the upper locking block 11 and the lower locking block 12 are fitted onto the outside of the door lock pivot. At this time, the nut 15 is rotated using an external wrench, so that the nut 15 pushes the movable rod during the rotation. When the lever 13 rises, the lower locking block 12 rises and cooperates with the upper locking block 11 to clamp the door lock shaft. A rotating component 3 is installed on one side of the upper locking block 11. The rotating component 3 consists of a hexagonal rotating block 31 and two limiting rods 32. The hexagonal rotating block 31 is welded to one side of the upper locking block 11. Two insertion holes are opened at the edge of the top of the lower locking block 12. The two limiting rods 32 are welded to the back side of the lower locking block 12. The two limiting rods 32 are respectively movably inserted into the two insertion holes. In this way, when the hexagonal rotating block 31 is rotated using an external torque wrench, the two limiting rods 32 can cooperate to drive the lower locking block 12 and the upper locking block 11 to rotate synchronously. During the synchronous rotation of the lower locking block 12 and the upper locking block 11, the purpose of assisting in the door lock torque test can be achieved.

[0018] The foregoing description, with reference to preferred embodiments, illustrates an exemplary implementation of a door lock torque testing auxiliary device provided by this disclosure. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, the protection scope of which is determined by the appended claims.

Claims

1. A door lock torque testing auxiliary device, comprising an upper locking block (11), a lower locking block (12), a movable rod (13), and a threaded rod (14), characterized in that, The lower locking block (12) is located at the bottom of the upper locking block (11). The lower locking block (12) and the upper locking block (11) are both provided with locking grooves. The two ends of the bottom of the movable rod (13) are movable through the upper locking block (11). The two ends of the bottom of the movable rod (13) are respectively welded to the two ends of the top of the lower locking block (12). The threaded rod (14) is fixedly installed in the middle of the top of the upper locking block (11) by the mounting part (2). The middle of the threaded rod (14) is threaded with a nut (15). The top of the nut (15) abuts against the inner top wall of the movable rod (13). A rotating part (3) is installed on one side of the upper locking block (11).

2. The door lock torque testing auxiliary device according to claim 1, characterized in that: The mounting component (2) consists of a mounting block (21) and two screws (22). The mounting block (21) is located in the middle of the top of the upper locking block (11). The two screws (22) are threaded through both ends of the top of the mounting block (21) and are threaded to the upper locking block (11).

3. The door lock torque testing auxiliary device according to claim 1, characterized in that: The rotating component (3) consists of a hexagonal rotating block (31) and two limiting rods (32). The hexagonal rotating block (31) is welded to one side of the upper locking block (11). Two insertion holes are opened at the edge of the top of the lower locking block (12). The two limiting rods (32) are welded to the back side of the lower locking block (12). The two limiting rods (32) are respectively movably inserted into the two insertion holes.

4. The door lock torque testing auxiliary device according to claim 1, characterized in that: Rubber pads (4) are pasted inside the slot on one side of the upper card block (11) and inside the slot on the lower card block (12).

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