Lock cap with high assembly precision

Abstract

The utility model relates to the technical field of lock caps, in particular to a lock cap with high assembly accuracy, which comprises a bolt and a nut, threads on the outer wall of the bolt are connected with threads on the nut, the outer wall of the nut is slidably connected with the lock cap, and a fixing device is arranged inside the lock cap. Through cooperation of the fixing device and the lock cap, the supporting block drives the threaded rod to rotate synchronously, the threaded rod rotates in threaded holes in the surfaces of the lock cap and the nut and moves towards the thread of the bolt at the same time, the threaded rod drives the rubber pad to move synchronously while moving, and the rubber pad abuts against a threaded groove in the surface of the bolt after making contact with the threaded groove. After the rubber pad abuts against the bolt, the positions of the lock cap and the nut are fixed, the rubber pad is driven by the threaded rod to abut against the threaded groove in the surface of the bolt, the positions of the lock cap and the nut are fixed, the situation that the nut and the lock cap deviate when collided by external force, and consequently the precision between the lock cap and the nut is affected is avoided, and the working quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of lock cap technology, specifically a lock cap with high assembly precision. Background Technology

[0002] A lock cap is a tool or accessory used to secure and protect nuts. When using bolts and nuts to connect and secure steel connectors, a lock cap with high assembly precision is required.

[0003] For example, the high-precision lock cap with authorization announcement number "CN 203374079 U" includes a cap body with a lock hole, and an integrated lock head on the upper part of the cap body. The lock head is close to the center line of the lock hole, and the inner wall of the lock head has an inner bevel, while the outer wall of the lock head has an outer bevel. The high-precision lock cap has a compact structure, improving performance, ease of operation, and enhanced security. However, after the device is connected to the nut by bolts and threads, the lock cap needs to be placed over the nut to protect it. When the lock cap is subjected to external impact, it is prone to shaking and falling off the nut surface, causing changes in the assembly precision between the lock cap and the nut, thus reducing the working quality of the device. Utility Model Content

[0004] The purpose of this invention is to solve the problem that after the device is connected to the nut by bolts and threads, a lock cap needs to be put on the outside of the nut to protect it. When the lock cap is hit by an external force, it is easy to shake and fall off the surface of the nut, which will cause changes in the assembly accuracy between the lock cap and the nut and reduce the working quality of the device. Therefore, a lock cap with high assembly accuracy is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a lock cap with high assembly precision, including a bolt and a nut, wherein the outer wall thread of the bolt is connected to the thread of the nut, the outer wall of the nut is slidably connected to the lock cap, and a fixing device is provided inside the lock cap.

[0007] Preferably, the fixing device includes a threaded rod and a rubber pad. The outer wall of the threaded rod is threadedly connected to the locking cap. The rubber pad is fixedly connected to the right end of the threaded rod, and a support block is fixedly connected to the left end of the threaded rod. A fixing block is fixedly connected to the left end of the support block.

[0008] Preferably, the right end of the rubber pad abuts against the bolt thread groove, and the outer wall of the threaded rod is threadedly connected to the nut.

[0009] Preferably, the inner wall of the lock cap is machined with a through hole.

[0010] Preferably, the nut has a threaded hole machined on its left inner wall.

[0011] The present invention proposes a high-precision lock cap, the advantages of which are as follows: through the cooperation of the fixing device and the lock cap, the rotating fixing block drives the supporting block to rotate synchronously, and the supporting block drives the threaded rod to rotate synchronously. While the threaded rod rotates in the threaded hole on the surface of the lock cap and nut, it moves towards the thread of the bolt. At the same time, the movement of the threaded rod drives the rubber pad to move synchronously. After the rubber pad contacts the threaded groove on the surface of the bolt, it abuts and stops the rotation of the fixing block. When the rubber pad abuts against the bolt, the position of the lock cap and nut is fixed. By driving the rubber pad to abut against the threaded groove on the surface of the bolt through the threaded rod, the position of the lock cap and nut is fixed, avoiding the displacement of the nut and lock cap when subjected to external force collision, thereby affecting the precision between the lock cap and nut and improving the work quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A front sectional view;

[0014] Figure 3 for Figure 2 Disassembled diagram of the bolt, nut, and lock cap;

[0015] Figure 4 for Figure 2 Part A of the diagram;

[0016] Figure 5 for Figure 2 Front sectional view of the fixing device.

[0017] In the diagram: 1. Bolt, 2. Fixing device, 201. Threaded rod, 202. Rubber pad, 203. Support block, 204. Fixing block, 3. Nut, 4. Lock cap. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] See attached document Figure 1-5 In this embodiment, a high-precision lock cap includes a bolt 1 and a nut 3. The outer wall thread of the bolt 1 is threadedly connected to the nut 3. The nut 3 can be fitted onto the outer wall of the bolt 1. Rotating the nut 3 causes the nut 3 to move towards the bottom of the bolt 1. The outer wall of the nut 3 is slidably connected to the lock cap 4. The nut 3 can be separated from the lock cap 4. The lock cap 4 is provided with a fixing device 2 inside. The inner wall of the lock cap 4 is machined with a through hole, which can pass through the bolt 1. The inner wall of the left side of the nut 3 is machined with a threaded hole, and the threaded hole on the outer wall of the nut 3 allows the threaded rod 201 to move inside it.

[0020] See attached document Figure 1-5The fixing device 2 includes a threaded rod 201 and a rubber pad 202. The size of the rubber pad 202 fits the thread groove of the bolt 1. The outer wall of the threaded rod 201 is threadedly connected to the locking cap 4. The threaded rod 201 can move inside the locking cap 4. The right end of the threaded rod 201 is fixedly connected to the rubber pad 202. When the threaded rod 201 moves, it drives the rubber pad 202 to move synchronously. The left end of the threaded rod 201 is fixedly connected to the support block 203. When the support block 203 rotates, it drives the threaded rod 201 to rotate synchronously. The left end of the support block 203 is fixedly connected to the fixing block 204. When the fixing block 204 rotates, it drives the support block 203 to rotate synchronously. The right end of the rubber pad 202 abuts against the thread groove of the bolt 1. When the rubber pad 202 abuts against the thread groove of the bolt 1, the position of the locking cap 4 is fixed. The outer wall of the threaded rod 201 is threadedly connected to the nut 3. The threaded rod 201 can move inside the nut 3.

[0021] Working principle:

[0022] When it is necessary to fix the steel connectors using bolts 1 and nuts 3, bolt 1 is passed through the connecting hole between the two steel connectors, and nut 3 is placed on the outer wall of bolt 1. Nut 3 is rotated, causing it to move on the surface of bolt 1. Once nut 3 is pressed against the steel connector, rotation of nut 3 is stopped. Locking cap 4 is then passed through bolt 1 and placed on the outside of nut 3. Threaded rod 201 is then inserted into the threaded hole machined in locking cap 4. Rotating fixing block 204 causes support block 203 to rotate synchronously, and support block 203 causes threaded rod 201 to rotate synchronously. As threaded rod 201 rotates in the threaded holes on the surfaces of locking cap 4 and nut 3, it causes… The threaded rod 201 moves toward the thread of the bolt 1. At the same time, the threaded rod 201 drives the rubber pad 202 to move synchronously. After the rubber pad 202 contacts the threaded groove on the surface of the bolt 1, it abuts and stops the rotation of the fixing block 204. When the rubber pad 202 abuts against the bolt 1, the position of the lock cap 4 and the nut 3 is fixed. The threaded rod 201 drives the rubber pad 202 to abut against the threaded groove on the surface of the bolt 1, which fixes the position of the lock cap 4 and the nut 3. This prevents the nut 3 and the lock cap 4 from shifting when subjected to external force collision, thereby affecting the accuracy between the lock cap and the nut, and completing the high-precision assembly process of the lock cap and nut.

[0023] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A high-precision lock cap, comprising a bolt (1) and a nut (3), wherein the outer thread of the bolt (1) is threadedly connected to the nut (3), characterized in that: The outer wall of the nut (3) is slidably connected to the lock cap (4), and the lock cap (4) is provided with a fixing device (2) inside.

2. The high-precision lock cap according to claim 1, characterized in that: The fixing device (2) includes a threaded rod (201) and a rubber pad (202). The outer wall of the threaded rod (201) is threadedly connected to the lock cap (4). The rubber pad (202) is fixedly connected to the right end of the threaded rod (201). The support block (203) is fixedly connected to the left end of the threaded rod (201). The fixing block (204) is fixedly connected to the left end of the support block (203).

3. The high-precision lock cap according to claim 2, characterized in that: The right end of the rubber pad (202) abuts against the threaded groove of the bolt (1), and the outer wall of the threaded rod (201) is threadedly connected to the nut (3).

4. The high-precision lock cap according to claim 1, characterized in that: The inner wall of the lock cap (4) is machined with a through hole.

5. The high-precision lock cap according to claim 1, characterized in that: The nut (3) has a threaded hole machined on the inner left side.

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