Anti-seismic bolt

Abstract

The utility model discloses an anti-seismic bolt, and belongs to the technical field of bolts. The anti-seismic bolt comprises a bolt body, an anti-disengagement nut mechanism for fastening the bolt body is arranged on the periphery of the bolt body, sliding grooves are symmetrically formed in the outer wall of the threaded end of the bolt body, a plurality of clamping grooves are formed in the sliding grooves, and a threaded rod of the bolt body penetrates through the nut body and is designed to be of an internal structure. And the fastening connection of the object is realized. In the fastening process, when the bolt body rotates, the rotating ring in the nut body can be driven to rotate synchronously, then the moving block and the clamping block move in the sliding groove, the clamping block can enter the clamping groove in the sliding groove under the supporting of the elastic force of the spring, and therefore the fastening position of the nut body on the bolt body can be effectively locked; the nut body is prevented from accidentally slipping and falling off from the bolt body due to factors such as external force or vibration in the normal use process, and the stability and reliability of connection are guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of bolts, and more specifically, to an earthquake-resistant bolt. Background Art

[0002] Earthquake-resistant bolts are mainly used to ensure the reliability and stability of connections in a vibrating environment. Compared with ordinary bolts, earthquake-resistant bolts can effectively absorb and dissipate vibration energy, prevent bolts from loosening due to vibration, thus ensuring the tightness of the connection part and extending the service life of the connection structure.

[0003] The traditional bolt-nut connection structure is simple and only relies on the friction between the threads to maintain the tightened state. However, in the actual use environment, especially in some working conditions with frequent vibrations and complex forces, the nut is extremely prone to loosening and slipping off the bolt, which will not only lead to connection failure, cause equipment failures and downtime for maintenance, but may even cause safety accidents, posing a serious threat to the lives and property of personnel. Moreover, in order to prevent the bolt and nut from loosening, the bolt and nut are welded together, thereby reducing the risk of loosening, but this makes the disassembly process extremely difficult, and even destructive methods have to be used, which not only increases the maintenance cost, but also causes irreversible damage to the equipment, prolongs the equipment downtime, and reduces the production efficiency.

[0004] In view of this, this application proposes an earthquake-resistant bolt. Utility Model Content

[0005] The purpose of this application is to provide an earthquake-resistant bolt, which solves the technical problems in the above background art.

[0006] The technical solution of this application provides an earthquake-resistant bolt, including a bolt body. An anti-loosening nut mechanism for fastening the bolt body is provided on the periphery of the bolt body. The outer wall of the threaded end of the bolt body is symmetrically provided with sliding grooves, and a plurality of card slots are provided inside the sliding grooves. An inner cavity communicating with the card slots is provided inside the bolt body. Both sides inside the inner cavity are slidably connected with moving plates. A plurality of top blocks are fixedly connected to the end faces of the two moving plates away from each other, and each top block is located in the card slot.

[0007] Optionally, the anti-loosening nut mechanism includes a nut body rotatably connected to the bolt body by threads. A rotating groove is provided on the inner wall of the nut body, and a rotating ring is rotatably connected inside the rotating groove.

[0008] Optionally, a pair of moving blocks are symmetrically and fixedly connected to the inner wall of the rotating ring. A clamping block is slidably inserted into the end faces of the two moving blocks close to each other, and the clamping block is located in the card slot.

[0009] Optionally, a plurality of springs are fixedly connected between the moving block and the clamping block.

[0010] Optionally, a rotating rod is rotatably connected inside the inner cavity, and a gear column is fixedly connected to the outer wall of the rotating rod.

[0011] Optionally, the outer wall of the gear column meshes with staggered racks, and the mutually remote ends of the two racks are fixedly connected to two moving plates respectively.

[0012] Optionally, a connecting groove is formed at the bottom of the bolt body, a turning knob is arranged inside the connecting groove, and one end of the rotating rod extends into the connecting groove and is fixedly connected to the turning knob.

[0013] One or more technical solutions provided in the technical solution of the present application have at least the following technical effects or advantages:

[0014] 1. Through the design that the threaded rod of the bolt body passes through the nut body and the internal structure, the present application realizes the fastening connection of an object. During the fastening process, when the bolt body rotates, it can drive the rotating ring inside the nut body to rotate synchronously, so that the moving block and the clamping block move in the sliding groove. Supported by the elastic force of the spring, the clamping block can enter the clamping groove in the sliding groove, so that the fastening position of the nut body on the bolt body can be effectively locked, preventing the nut body from accidentally slipping off the bolt body due to external force or vibration during normal use, and ensuring the stability and reliability of the connection.

[0015] 2. By driving the gear column to rotate through the rotating rod, the gear column drives the two meshed racks and the moving plates to move away from each other. The movement of the top block on the moving plate can, on the one hand, fill the clamping groove, and on the other hand, push the clamping block into the moving block, causing the spring to contract, thereby releasing the clamping state between the clamping block and the clamping groove, enabling the staff to easily rotate the bolt body, making the moving block move smoothly in the sliding groove, and finally conveniently removing the bolt body and the nut body. This design makes the disassembly process of the bolt body and the nut body relatively simple, without the need to rely on complex special tools or adopt destructive disassembly methods, improving the convenience and repeatability of the operation, and being beneficial to the maintenance, repair and replacement of parts of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the earthquake-resistant bolt disclosed in the embodiment of the present application;

[0017] Figure 2 is a sectional view of the bolt body of the earthquake-resistant bolt disclosed in the embodiment of the present application;

[0018] Figure 3 is a sectional view of the anti-loosening nut mechanism of the earthquake-resistant bolt disclosed in the embodiment of the present application;

[0019] Description of reference numerals in the figure: 1. Bolt body; 2. Anti-loosening nut mechanism; 201. Nut body; 202. Rotation groove; 203. Rotation ring; 204. Moving block; 205. Clamping block; 206. Spring; 3. Slide groove; 4. Card slot; 5. Connection groove; 6. Rotary knob; 7. Moving plate; 8. Top block; 9. Rotating rod; 10. Gear column; 11. Rack; 12. Inner cavity. Specific embodiments

[0020] The present application will be further described in detail below with reference to the accompanying drawings of the specification.

[0021] Refer to Figure 1 and Figure 3 An anti-seismic bolt provided by an embodiment of the present application includes a bolt body 1. An anti-loosening nut mechanism 2 for fastening the bolt body 1 is provided on the periphery of the bolt body 1. The anti-loosening nut mechanism 2 includes a nut body 201 that is rotationally connected to the bolt body 1 by a thread. Through the design that the threaded rod of the bolt body 1 passes through the nut body 201 and its internal structure, a firm connection to an object is achieved.

[0022] Refer to Figure 2 and Figure 3 A rotation groove 202 is formed in the inner wall of the nut body 201. A rotation ring 203 is rotatably connected inside the rotation groove 202. A pair of moving blocks 204 are symmetrically and fixedly connected to the inner wall of the rotation ring 203. Clamping blocks 205 are slidably inserted into the end faces of the two moving blocks 204 that are close to each other. The upper end of the clamping block 205 is an inclined surface, and the lower end is a flat surface.

[0023] Refer to Figures 1 - 3 On the outer wall of the threaded end of the bolt body 1, slide grooves 3 are symmetrically formed. A plurality of card slots 4 are formed inside the slide grooves 3, and the clamping blocks 205 are located in the card slots 4. During the fastening process, when the bolt body 1 rotates, the rotation ring 203 rotates synchronously, so that the moving blocks 204 and the clamping blocks 205 move in the slide grooves 3, and the clamping blocks 205 can enter the card slots 4 in the slide grooves 3, thereby effectively locking the fastening position of the nut body 201 on the bolt body 1, preventing the nut body 201 from accidentally slipping off the bolt body 1 due to external forces or vibrations during normal use, and ensuring the stability and reliability of the connection.

[0024] Refer to Figure 3 A plurality of springs 206 are fixedly connected between the moving blocks 204 and the clamping blocks 205. The springs 206 have good elasticity, enabling the clamping blocks 205 to smoothly engage with the card slots 4, and at the same time improving the stability and making it not easy to fall off from the card slots 4.

[0025] Refer to Figure 2 and Figure 3, a cavity 12 communicating with the card slot 4 is provided inside the bolt body 1. Both sides inside the cavity 12 are slidably connected with moving plates 7. A plurality of top blocks 8 are fixedly connected to the end faces of the two moving plates 7 away from each other, and each top block 8 is located in the card slot 4. The movement of the top block 8 on the moving plate 7 can, on the one hand, fill the card slot 4, and on the other hand, push the card block 205 into the moving block 204, causing the spring 206 to contract, thereby releasing the engagement state between the card block 205 and the card slot 4, enabling the staff to easily rotate the bolt body 1, allowing the moving block 204 to move smoothly in the sliding groove 3, and finally conveniently removing the bolt body 1 and the nut body 201. The disassembly process of the bolt body 1 and the nut body 201 is relatively simple, without the need to rely on complex special tools or adopt destructive disassembly methods, improving the convenience and repeatability of the operation, and being beneficial to the maintenance, repair and replacement of parts of the equipment.

[0026] Refer to Figure 2 and Figure 3 , a rotating rod 9 is rotatably connected inside the cavity 12. A gear column 10 is fixedly connected to the outer wall of the rotating rod 9. The outer wall of the gear column 10 meshes with staggered rack bars 11. The end parts of the two rack bars 11 away from each other are respectively fixedly connected to the two moving plates 7. A connecting groove 5 is provided at the bottom of the bolt body 1. A knob 6 is provided inside the connecting groove 5, and one end of the rotating rod 9 extends into the connecting groove 5 and is fixedly connected to the knob 6. The rotation of the knob 6 drives the rotation of the rotating rod 9, the rotation of the rotating rod 9 drives the rotation of the gear column 10, and the gear column 10 drives the two engaged rack bars 11 and the moving plates 7 to move away from each other. The operation is simple and very convenient to use.

[0027] Working principle: When in use, pass the anti-slip ring through the bolt body 1, and then pass the bolt body 1 through the object to be fastened. The threaded rod of the bolt body 1 passes through the fixed nut body 201, and the moving block 204 and the card block 205 inside the nut body 201 enter the sliding groove 3 on the bolt body 1.

[0028] The staff rotates the bolt body 1. While the bolt body 1 rotates, it will drive the rotating ring 203 inside the nut body 201 to rotate synchronously. The rotation of the rotating ring 203 drives the moving block 204 and the clamping block 205 to rotate synchronously. At the same time, the moving block 204 and the clamping block 205 will move in the chute 3. When the clamping block 205 moves, it enters the clamping groove 4 in the chute 3. As the clamping block 205 continues to move, the clamping groove 4 will abut against the inclined surface above the clamping block 205, causing one end of the clamping block 205 to enter the moving block 204. At the same time, multiple springs 206 between the moving block 204 and the clamping block 205 contract simultaneously. Whenever the clamping block 205 passes by a clamping groove 4, the multiple springs 206 expand, and the elastic force of the springs 206 drives the clamping block 205 into the clamping groove 4. After the bolt body 1 is tightened, the clamping block 205 is located in the clamping groove 4, and the plane at the bottom of the clamping block 205 will abut against the bottom of the clamping groove 4. When vibration occurs, the clamping block 205 can play a good limiting role, making it difficult for the nut body 201 to slip off the bolt body 1 due to thread stripping.

[0029] When the staff needs to remove the bolt body 1 and the nut body 201, the staff first rotates the knob 6 in the connecting groove 5 at the bottom of the bolt body 1. The rotation of the knob 6 drives the rotating rod 9 to rotate. The rotation of the rotating rod 9 drives the gear column 10 to rotate. The rotation of the gear column 10 drives the two engaged racks 11 to move. One end of the two racks 11 moves away from each other. The movement of the two racks 11 drives the two moving plates 7 to move away from each other. The movement of the moving plates 7 drives multiple top blocks 8 to move. The movement of the top blocks 8 will fill the clamping groove 4. At the same time, the top blocks 8 will push the clamping block 205 into the moving block 204, and the springs 206 contract, so that the clamping block 205 will not be stuck in the clamping groove 4.

[0030] Finally, the staff rotates the bolt body 1, the moving block 204 moves in the chute 3, and the staff can then remove the bolt body 1.

[0031] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An earthquake-resistant bolt, comprising a bolt body (1), characterized in that: The periphery of the bolt body (1) is provided with an anti-loosening nut mechanism (2) for fastening the bolt body (1). The outer wall of the threaded end of the bolt body (1) is symmetrically provided with sliding grooves (3). A plurality of clamping grooves (4) are arranged inside the sliding grooves (3). An inner cavity (12) communicating with the clamping grooves (4) is arranged inside the bolt body (1). Both sides inside the inner cavity (12) are slidably connected with moving plates (7). A plurality of top blocks (8) are fixedly connected to the end faces of the two moving plates (7) away from each other, and each top block (8) is located in the clamping groove (4).

2. The anti-seismic bolt according to claim 1, characterized in that: The anti-loosening nut mechanism (2) includes a nut body (201) rotatably connected to the bolt body (1) by threads. A rotating groove (202) is arranged on the inner wall of the nut body (201). A rotating ring (203) is rotatably connected inside the rotating groove (202).

3. The earthquake-resistant bolt according to claim 2, wherein: A pair of moving blocks (204) are symmetrically and fixedly connected to the inner wall of the rotating ring (203). Clamping blocks (205) are slidably inserted into the end faces of the two moving blocks (204) close to each other, and the clamping blocks (205) are located in the clamping grooves (4).

4. The earthquake-resistant bolt according to claim 3, wherein: A plurality of springs (206) are fixedly connected between the moving blocks (204) and the clamping blocks (205).

5. The earthquake-resistant bolt according to claim 1, wherein: A rotating rod (9) is rotatably connected inside the inner cavity (12). A gear column (10) is fixedly connected to the outer wall of the rotating rod (9).

6. The earthquake-resistant bolt according to claim 5, characterized in that: The outer wall of the gear column (10) is engaged with staggered racks (11). The end parts of the two racks (11) away from each other are respectively fixedly connected to the two moving plates (7).

7. The anti-seismic bolt according to claim 5, wherein: A connecting groove (5) is arranged at the bottom of the bolt body (1). A rotary knob (6) is arranged inside the connecting groove (5). One end of the rotating rod (9) extends into the connecting groove (5) and is fixedly connected to the rotary knob (6).

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