Shockproof self-locking bolt

Abstract

The utility model discloses a shockproof self-locking bolt, which relates to the technical field of bolts, and comprises a bolt body, the outer surface of the bolt body is in threaded connection with a nut, the bottom end of the nut is fixedly connected with a connecting sleeve, and a first self-locking mechanism is arranged between the inner part of the bolt body and the connecting sleeve. According to the self-locking bolt, original pull rope driving is replaced by first spring driving, the situation that a pull rope is prone to aging and being damaged can be avoided, the service life is prolonged, the first self-locking mechanism and the second self-locking mechanism are arranged, and therefore the self-locking bolt is convenient to use and high in practicability. By means of the clamping device, the locking bolt can be clamped and cannot rotate automatically, the locking bolt connected through threads is not prone to autorotation during disassembly, then the locking wedge-shaped block cannot be affected, and disassembly is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a shockproof self-locking bolt. Background Art

[0002] A bolt is a mechanical part, a cylindrical threaded fastener equipped with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which needs to be matched with a nut to fasten and connect two parts with through holes. After searching, the Chinese patent publication number CN218468042U discloses a flange bolt with a multi-directional self-locking structure, which relates to the technical field of building curtain walls, including a hexagonal head, a screw and a nut. The screw is fixedly connected to the bottom of the hexagonal head, the nut is sleeved on the side wall of the screw, the nut is threadedly connected to the side wall of the screw, a sleeve is rotatably connected to the side wall of the bottom end of the nut, the sleeve is sleeved on the outside of the screw, a plurality of annular grooves are provided on the inner side wall of the sleeve, two slide grooves are provided on the side wall of the screw, and elastic clips are provided on the inner side walls of the two slide grooves. The utility model can prevent the nut from being reversely rotated out due to the vibration of the equipment, and at the same time, the distance between the nut and the hexagonal head can be adjusted according to the size of the equipment to facilitate the self-locking position.

[0003] Although the above technical solution can adjust the distance between the nut and the hexagonal head to the self-locking position according to the size of the equipment, the T-shaped protrusion is moved by a pull rope during use, and the pull rope is prone to aging and damage, thereby reducing the service life. In addition, the rotating rod is a rotating connection, and due to the presence of the spring, it will rotate. Therefore, when disassembling, it is necessary to use additional tools to fix the rotating rod, which increases the cost and burden of use. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a shockproof self-locking bolt, which solves the problems raised in the background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a shockproof self-locking bolt, comprising a bolt body, a nut is threadedly connected to the outer surface of the bolt body, a connecting sleeve is fixedly connected to the bottom end of the nut, a first self-locking mechanism is arranged between the inner installation of the bolt body and the connecting sleeve, and a second self-locking mechanism matched with the first self-locking mechanism is arranged on the top of the bolt body;

[0006] The first self-locking mechanism includes a threaded hole opened inside the bolt body, the internal thread of the threaded hole is connected to a locking bolt, and locking wedge blocks that cooperate with the bottom end of the locking bolt are symmetrically penetrated and slidably connected on both sides of the inner wall of the threaded hole, and the inner wall of the connecting sleeve is sequentially provided with a plurality of locking ring grooves that cooperate with the locking wedge blocks.

[0007] Preferably, a partition is fixedly connected to the inner bottom of the threaded hole, and a first spring is fixedly connected between the outer surfaces of the partition and adjacent locking wedge blocks on both sides to facilitate automatic resetting of the two locking wedge blocks.

[0008] Preferably, a regular hexagonal hole is provided at the top of the locking bolt to facilitate the rotation of the locking bolt.

[0009] Preferably, the second self-locking mechanism comprises an L-shaped groove formed on the top of the bolt body, and a stopper matched with the locking bolt is slidably connected through the interior of the L-shaped groove to facilitate self-locking of the locking bolt.

[0010] Preferably, a second spring is fixedly connected between the inner wall of the L-shaped groove and the stopper to facilitate automatic resetting of the stopper.

[0011] Preferably, a pull plate is fixedly connected to the upper surface of the stopper and is slidably connected to the inner wall of the L-shaped groove, so as to facilitate pulling the stopper.

[0012] The utility model provides a shockproof self-locking bolt. It has the following beneficial effects:

[0013] 1. This kind of shockproof self-locking bolt, by setting up a first self-locking mechanism, can avoid the situation where the pull rope is easily damaged due to aging by replacing the original pull rope drive with the first spring drive, and improve the service life, thereby solving the problem that the existing bolt drives the T-shaped protrusion to move by the pull rope, and the pull rope is easily damaged by aging and reduces the service life.

[0014] 2. This kind of shockproof self-locking bolt, through the first self-locking mechanism and the second self-locking mechanism, can not only clamp the locking bolt so that it does not rotate automatically, but also the locking bolt connected by the thread is not easy to rotate by itself during disassembly, and thus will not affect the locking wedge block, which is convenient for disassembly, thereby solving the problem that the rotating rod in the existing bolt is a rotating connection, and due to the presence of the spring, it will cause it to rotate by itself, so when disassembling, it is necessary to use additional tools to fix the rotating rod, thereby increasing the cost and burden of use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle.

[0019] In the figure, 1. bolt body; 2. nut; 3. connecting sleeve; 4. first self-locking mechanism; 41. threaded hole; 42. locking bolt; 43. locking wedge block; 44. locking ring groove; 45. partition; 46. first spring; 47. regular hexagonal hole; 5. second self-locking mechanism; 51. L-shaped groove; 52. stop block; 53. second spring; 54. pull plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1: Figures 1 to 4 As shown, a shockproof self-locking bolt comprises a bolt body 1, a nut 2 is threadedly connected to the outer surface of the bolt body 1, a connecting sleeve 3 is fixedly connected to the bottom end of the nut 2, a first self-locking mechanism 4 is arranged between the internal installation of the bolt body 1 and the connecting sleeve 3, the first self-locking mechanism 4 comprises a threaded hole 41 opened inside the bolt body 1, a locking bolt 42 is threadedly connected to the inner surface of the threaded hole 41, a locking wedge block 43 matching the bottom end of the locking bolt 42 is symmetrically penetrated and slidably connected to the inner wall of the threaded hole 41 on both sides, and a plurality of locking ring grooves 44 matching the locking wedge block 43 are sequentially opened on the inner wall of the connecting sleeve 3. A partition 45 is fixedly connected to the inner bottom of the threaded hole 41, and a first spring 46 is fixedly connected between the outer surface of the partition 45 and the adjacent locking wedge blocks 43 on both sides. A regular hexagonal hole 47 is opened at the top of the locking bolt 42. When in use, rotating the locking bolt 42 with the cooperation of the threaded hole 41 can drive the locking bolt 42 to move, and then the two locking wedge blocks 43 can be pushed outward, so that the two locking wedge blocks 43 enter the corresponding locking ring groove 44, so that the bolt can be locked to avoid loosening due to vibration. When disassembling, it is only necessary to reverse the locking bolt 42 to automatically drive the two locking wedge blocks 43 out of the locking ring groove 44 under the action of the first spring 46, and then the nut 2 can be disassembled. By replacing the original pull rope drive with a spring drive, the pull rope can be prevented from being easily damaged due to aging, and the service life can be improved, thereby solving the problem that the existing bolt drives the T-shaped protrusion to move by the pull rope, and the pull rope is easily damaged by aging, thereby reducing the service life.

[0022] Example 2: Figures 1 to 4As shown, the top of the bolt body 1 is provided with a second self-locking mechanism 5 matched with the first self-locking mechanism 4, and the second self-locking mechanism 5 includes an L-shaped groove 51 opened at the top of the bolt body 1, and a stopper 52 matched with the locking bolt 42 is slidably connected to the inside of the L-shaped groove 51. A second spring 53 is fixedly connected between the inner wall of the L-shaped groove 51 and the stopper 52. A pull plate 54 slidably connected to the inner wall of the L-shaped groove 51 is fixedly connected to the upper surface of the stopper 52. When the bolt self-locks, the second spring 53 will automatically clamp the locking bolt 42 so that it will not rotate automatically, and the locking bolt 42 connected by a thread is not easy to rotate by itself during disassembly, and thus will not affect the locking wedge block 43, which is convenient for disassembly, thereby solving the problem that the rotating rod in the existing bolt is a rotating connection, and due to the presence of the spring, it will rotate by itself, so when disassembling, it is necessary to use additional tools to fix the rotating rod, thereby increasing the cost and burden of use.

[0023] Working principle: When in use, rotating the locking bolt 42 can drive the locking bolt 42 to move with the cooperation of the threaded hole 41, and then the two locking wedge blocks 43 can be pushed outward, so that the two locking wedge blocks 43 enter the corresponding locking ring grooves 44, so that the bolt can be locked to prevent loosening due to vibration. When disassembling, it is only necessary to reverse the locking bolt 42 to automatically drive the two locking wedge blocks 43 to move out of the locking ring grooves 44 under the action of the first spring 46, so that the nut 2 can be disassembled. By replacing the original pull rope drive with a spring drive, the pull rope can be prevented from being easily damaged due to aging. , improve the service life, thereby solving the problem that the existing bolt drives the T-shaped protrusion to move through the pull rope and the pull rope is prone to aging and damage, thereby reducing the service life. When the bolt self-locks, the second spring 53 will automatically clamp the locking bolt 42, so that it will not rotate automatically, and the locking bolt 42 connected by the thread is not easy to rotate by itself during disassembly, and thus will not affect the locking wedge block 43, which is convenient for disassembly, thereby solving the problem that the rotating rod in the existing bolt is a rotating connection. Due to the presence of the spring, it will cause it to rotate by itself. Therefore, when disassembling, it is necessary to use additional tools to fix the rotating rod, thereby increasing the cost and burden of use.

[0024] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A shockproof self-locking bolt, comprising a bolt body (1), characterized in that: The outer surface of the bolt body (1) is threadedly connected to a nut (2), the bottom end of the nut (2) is fixedly connected to a connecting sleeve (3), a first self-locking mechanism (4) is provided between the inner installation of the bolt body (1) and the connecting sleeve (3), and a second self-locking mechanism (5) matched with the first self-locking mechanism (4) is installed on the top of the bolt body (1); The first self-locking mechanism (4) comprises a threaded hole (41) formed inside the bolt body (1), a locking bolt (42) being connected to the internal thread of the threaded hole (41), locking wedge blocks (43) cooperating with the bottom end of the locking bolt (42) being symmetrically penetrated and slidably connected through the inner wall of the threaded hole (41) on both sides, and a plurality of locking ring grooves (44) cooperating with the locking wedge blocks (43) are sequentially formed on the inner wall of the connecting sleeve (3).

2. According to claim 1, a shockproof self-locking bolt is characterized in that: A partition plate (45) is fixedly connected to the inner bottom of the threaded hole (41), and first springs (46) are fixedly connected between the outer surfaces of the partition plate (45) and adjacent locking wedge blocks (43) on both sides.

3. The anti-vibration self-locking bolt according to claim 1, characterized in that: A regular hexagonal hole (47) is formed at the top end of the locking bolt (42).

4. The anti-vibration self-locking bolt according to claim 1, characterized in that: The second self-locking mechanism (5) comprises an L-shaped groove (51) formed on the top of the bolt body (1), and a stopper (52) matching with the locking bolt (42) is slidably connected through the interior of the L-shaped groove (51).

5. The anti-vibration self-locking bolt according to claim 4, characterized in that: A second spring (53) is fixedly connected between the inner wall of the L-shaped groove (51) and the stopper (52).

6. The anti-vibration self-locking bolt according to claim 5, characterized in that: A pull plate (54) is fixedly connected to the upper surface of the stopper (52) and is slidably connected to the inner wall of the L-shaped groove (51).

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