Lock bolt with anti-skid teeth

Abstract

The utility model provides a lock bolt with anti-skid teeth. The anti-loosening bolt with the anti-skidding teeth comprises a screw rod and an anti-skidding tooth, the connecting threads are formed in the outer surface of the screw rod, the top end of the screw rod is fixedly connected with a butt-joint disc, the top end of the butt-joint disc is fixedly connected with a screw head, four penetrating openings are formed in the top end of the butt-joint disc, screws are installed in the penetrating openings, and four butt-joint openings are formed in the outer surface of the butt-joint disc. The outer surface of the screw rod is in threaded connection with a nut; and the butt joint ring is installed at the bottom of the butt joint disc, and four threaded hole teeth are formed in the top of the butt joint ring. According to the anti-loosening bolt with the anti-skidding teeth, the anti-skidding teeth and the bolt head of the anti-loosening bolt are separated through the design and can be assembled together for use, the applicability is improved, meanwhile, later-stage disassembly is convenient, only the butt joint ring needs to be replaced after the anti-skidding teeth are abraded, and normal use of the anti-loosening bolt cannot be affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti-loose bolt with anti-skid tooth, especially to an anti-loose bolt with anti-skid tooth. BACKGROUND

[0002] The anti-loose bolt is a special engineering plastic with nylon as the main component, which is sprayed on the thread by thermal spraying technology. During the tightening process of the thread, the layer of engineering plastic is extruded to generate strong counterforce and friction, thereby preventing the screw from retreating and achieving the effect of anti-loose.

[0003] In order to increase the anti-loose effect of the anti-loose bolt, anti-skid teeth are generally provided at the connection between the screw head and the stud. The anti-skid teeth and the connection position are used to prevent the bolt from loosening by friction. The anti-skid tooth anti-loose bolt is suitable for various occasions requiring high reliable connection, especially in high frequency vibration or dynamic load environment.

[0004] However, the anti-skid teeth of the existing anti-loose bolt are generally an integral part of the screw head of the anti-loose bolt. If the anti-skid teeth are not convenient to disassemble after installation, and if the anti-skid teeth are worn out, it will affect the normal use of the entire anti-loose bolt.

[0005] Therefore, it is necessary to provide an anti-loose bolt with anti-skid teeth to solve the above technical problems. SUMMARY

[0006] The utility model provides an anti-loose bolt with anti-skid teeth, which solves the problem of inconvenient disassembly of the anti-skid teeth provided on the screw head of the anti-loose bolt after installation, and the problem of affecting the normal use of the entire anti-loose bolt due to wear of the anti-skid teeth.

[0007] To solve the above technical problems, the utility model provides an anti-loose bolt with anti-skid teeth, which comprises a screw rod.

[0008] A connecting thread is provided on the outer surface of the screw rod. The top end of the screw rod is fixedly connected with a butt joint disc. The top end of the butt joint disc is fixedly connected with a screw head. Four through holes are provided on the top end of the butt joint disc. Screws are installed in the through holes. Four butt joint ports are provided on the outer surface of the butt joint disc. A screw cap is threadedly connected to the outer surface of the screw rod.

[0009] A butt joint ring is installed at the bottom of the butt joint disc. Four threaded holes are provided on the top of the butt joint ring. Four butt joint bolts are installed on the top of the butt joint ring at the position of the outer surface. A plurality of first anti-skid teeth are provided at the bottom end of the butt joint ring.

[0010] The outer surface of the screw rod is not provided with a connecting thread near the top end, the butt joint disc and the screw head are integrally formed, the butt joint ring is sleeved on the outer surface of the screw rod, and the screw and the threaded hole are threadedly connected to fix the butt joint ring on the bottom of the butt joint disc.

[0011] Preferably, the top of the screw nut is fixedly connected with a mounting ring, and the outer surface of the screw nut is fixedly connected with a first reinforcing strip at the corner position.

[0012] The first reinforcing strip can increase the wear resistance of the corner of the screw nut.

[0013] Preferably, the top of the mounting ring is provided with a lower anti-skid ring, and the bottom of the butt joint ring is provided with an upper anti-skid ring.

[0014] The lower anti-skid ring and the upper anti-skid ring are both sleeved on the outer surface of the screw rod.

[0015] Preferably, the top end and the bottom end of the lower anti-skid ring and the upper anti-skid ring are both provided with a second anti-skid tooth, and the mounting ring is a circular ring.

[0016] The second anti-skid tooth also increases the anti-loosening effect, and is installed if needed and is not needed if not needed.

[0017] Preferably, the outer surface of the screw nut is provided with a protective sleeve through a sleeve opening, and the outer surface of the protective sleeve is provided with an anti-skid groove.

[0018] The protective sleeve plays a protective role.

[0019] Preferably, the outer surface of the screw head is fixedly connected with a second reinforcing strip at the corner position, and the top end of the screw head is provided with a clamping opening.

[0020] The second reinforcing strip and the first reinforcing strip have the same effect.

[0021] Compared with the related art, the anti-loosening bolt with an anti-skid tooth has the following beneficial effects:

[0022] The utility model provides a kind of anti-loosening bolt with anti-skid tooth, to facilitate anti-loosening bolt with anti-skid tooth disassembly and facilitate anti-skid tooth replacement, multiple through holes are set on the butt joint disc of the bottom end of screw head, and screw is inserted into the threaded hole of butt joint ring from through hole and is threadedly connected, then butt joint ring can be fixed in the bottom end of butt joint disc, and the bottom end of butt joint ring is provided with first anti-skid tooth, contact is made by first anti-skid tooth and connecting position, friction is increased, the anti-loosening effect of anti-loosening bolt is improved, the design separates anti-skid tooth and screw head of anti-loosening bolt, and they can be assembled together for use, increase applicability, also facilitate later disassembly, after anti-skid tooth wears, only need to replace butt joint ring, without affecting normal use of anti-loosening bolt. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A schematic diagram of a preferred embodiment of the anti-loosening bolt with anti-slip teeth provided by this utility model;

[0024] Figure 2 A structural schematic diagram of the upper anti-slip ring is provided for this utility model;

[0025] Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0026] Figure 4 Provided for this utility model Figure 2 An enlarged view of point B shown;

[0027] Figure 5 Provided for this utility model Figure 2 A magnified view of point C shown.

[0028] The following are the labels in the diagram: 1. Screw, 2. Connecting disc, 3. Screw head, 4. Connecting ring, 5. Upper anti-slip ring, 6. Lower anti-slip ring, 7. Protective sleeve, 8. Connecting thread, 9. Nut, 10. First reinforcing strip, 11. Mounting ring, 12. First anti-slip tooth, 13. Screw, 14. Bayonet, 15. Second reinforcing strip, 16. Through hole, 17. Connecting interface, 18. Threaded hole, 19. Connecting bolt, 20. Second anti-slip tooth, 21. Sleeve opening, 22. Anti-slip groove. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the anti-loosening bolt with anti-slip teeth provided by this utility model; Figure 2 A structural schematic diagram of the upper anti-slip ring is provided for this utility model; Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 4 Provided for this utility model Figure 2 An enlarged view of point B shown; Figure 5 Provided for this utility model Figure 2 The enlarged view at point C is shown. The anti-loosening bolt with anti-slip teeth includes: bolt 1;

[0031] Connecting thread 8, the connecting thread 8 is opened in the outer surface of the screw rod 1, the top end of the screw rod 1 is fixedly connected with the butt joint disc 2, the top end of the butt joint disc 2 is fixedly connected with the screw head 3, the top end of the butt joint disc 2 is provided with four through holes 16, the inside of the through hole 16 is mounted with the screw 13, the outer surface of the butt joint disc 2 is provided with four butt joint interfaces 17, the outer surface of the screw rod 1 is threadedly connected with the nut 9;

[0032] Butt joint ring 4, the butt joint ring 4 is installed at the bottom of the butt joint disc 2, the top of the butt joint ring 4 is provided with four threaded holes 18, the top of the butt joint ring 4 is installed with four butt joint bolts 19 at the position of the outer surface, the bottom end of the butt joint ring 4 is provided with a plurality of first anti-skid teeth 12;

[0033] The outer surface of the screw rod 1 is not provided with connecting thread 8 at the position close to the top end, the butt joint disc 2 and the screw head 3 are integrally formed, the butt joint ring 4 is sleeved on the outer surface of the screw rod 1, the screw 13 and the threaded hole 18 are threadedly connected, and the butt joint ring 4 can be fixed at the bottom of the butt joint disc 2, the butt joint bolt 19 is clamped into the butt joint interface 17, and the stability of the connection of the butt joint ring 4 can be increased.

[0034] The top of the nut 9 is fixedly connected with the mounting ring 11, and the outer surface of the nut 9 is fixedly connected with the first reinforcing strip 10 at the position of the corner;

[0035] The mounting ring 11 is sleeved on the outer surface of the screw rod 1, and the first reinforcing strip 10 can increase the wear resistance of the corners of the nut 9.

[0036] The top of the mounting ring 11 is provided with a lower anti-skid ring 6, and the bottom of the butt joint ring 4 is provided with an upper anti-skid ring 5;

[0037] The lower anti-skid ring 6 and the upper anti-skid ring 5 are both sleeved on the outer surface of the screw rod 1.

[0038] The top end and the bottom end of the lower anti-skid ring 6 and the upper anti-skid ring 5 are both provided with second anti-skid teeth 20, and the mounting ring 11 is a circular ring;

[0039] The second anti-skid teeth 20 also increase the anti-loosening effect, and if necessary, the mounting ring 11 can increase the contact area and improve the anti-loosening effect.

[0040] The outer surface of the nut 9 is provided with a protective sleeve 7 through a sleeve opening 21, and the outer surface of the protective sleeve 7 is provided with an anti-skid groove 22;

[0041] The protective sleeve 7 plays a protective role and protects after the nut 9 is installed.

[0042] The outer surface of the screw head 3 is fixedly connected with the second reinforcing strip 15 at the position of the corner, and the top end of the screw head 3 is provided with a clamping opening 14.

[0043] The bayonet 14 adds a way to disassemble the screw head 3. The second reinforcing strip 15 has the same function as the first reinforcing strip 10.

[0044] The working principle of the anti-loosening bolt with anti-slip teeth provided by this utility model is as follows:

[0045] Multiple through holes 16 are made on the mating disc 2 at the bottom of the screw head 3. The screw 13 is inserted into the threaded hole 18 on the mating ring 4 through the through hole 16 and threaded to fix it. The mating ring 4 can then be fixed to the bottom of the mating disc 2. The bottom of the mating ring 4 is provided with a first anti-slip tooth 12. The first anti-slip tooth 12 contacts the connection position, increases the friction, and improves the anti-loosening effect of the anti-loosening bolt. In actual use, if the anti-slip tooth is not needed, the mating ring 4 does not need to be installed at the bottom of the mating disc 2, and an anti-loosening bolt without anti-slip teeth can be used directly. To tighten the product, if anti-slip teeth are needed, simply put the mating ring 4 on the outer surface of the screw 1 and insert the mating bolt 19 into the mating interface 17. Then, fix the mating ring 4 to the bottom of the mating plate 2 with four screws 13. When tightening with anti-loosening bolts, the first anti-slip teeth 12 at the bottom of the mating ring 4 can increase the friction and improve the anti-loosening effect. If disassembly is required, simply remove the four screws 13 to separate the mating ring 4 from the mating plate 2. Then, simply use a tool to rotate the screw head 3 to complete the disassembly.

[0046] Compared with related technologies, the anti-loosening bolt with anti-slip teeth provided by this utility model has the following beneficial effects:

[0047] To facilitate the disassembly and replacement of the anti-loosening bolt with anti-slip teeth, multiple through holes 16 are made on the mating disc 2 at the bottom of the screw head 3. The screw 13 is inserted into the threaded hole 18 on the mating ring 4 through the through hole 16 and threaded to fix the mating ring 4 to the bottom of the mating disc 2. The bottom of the mating ring 4 is provided with the first anti-slip tooth 12. The first anti-slip tooth 12 contacts the connection position, increases the friction, and improves the anti-loosening effect of the anti-loosening bolt. This design separates the anti-slip tooth and the screw head 3 of the anti-loosening bolt, and allows the two to be assembled together for use, which increases the applicability and facilitates disassembly later. When the anti-slip tooth wears out, only the mating ring 4 needs to be replaced, which will not affect the normal use of the anti-loosening bolt.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A check bolt with anti-slip teeth, characterized by, Include: Screw rod; The connecting thread is opened in the outer surface of the screw rod, the top end of the screw rod is fixedly connected with the butt joint disc, the top end of the butt joint disc is fixedly connected with the screw head, the top end of the butt joint disc is provided with four through holes, the inside of the through hole is provided with a screw, the outer surface of the butt joint disc is provided with four butt joints, the outer surface of the screw rod is threadedly connected with the nut; The butt joint ring is installed at the bottom of the butt joint disc, the top of the butt joint ring is provided with four threaded holes, the top of the butt joint ring is provided with four butt joint bolts at the position of the outer surface, and the bottom end of the butt joint ring is provided with a plurality of first anti-skid teeth.

2. The check bolt with anti-slip teeth according to claim 1, characterized in that, The top of the nut is fixedly connected with the mounting ring, and the outer surface of the nut is fixedly connected with the first reinforcing strip at the position of the corner.

3. The check bolt with anti-slip teeth according to claim 2, characterized in that, The top of the mounting ring is provided with a lower anti-skid ring, and the bottom of the butt joint ring is provided with an upper anti-skid ring.

4. The check bolt with anti-slip teeth according to claim 3, characterized in that, The top and bottom ends of the lower anti-skid ring and the upper anti-skid ring are provided with second anti-skid teeth, and the mounting ring is circular.

5. The lugless security bolt according to claim 1, wherein, The outer surface of the nut is provided with a protective sleeve through the sleeve opening, and the outer surface of the protective sleeve is provided with an anti-skid groove.

6. The lugless security bolt according to claim 1, wherein, The outer surface of the screw head is fixedly connected with the second reinforcing strip at the position of the corner, and the top end of the screw head is provided with a clamping hole.

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