Anti-loose bolt

Abstract

The application discloses an anti-loose bolt and belongs to the technical field of fasteners, which solves the problems of poor connection stability, weak anti-loose performance and uneven glue coating in the prior art. The bolt comprises a cap and a shank which are connected as a whole. The cap comprises a head cap, a connecting column is arranged at the bottom of the head cap and connects the shank, a connecting table is arranged in the connecting column at the bottom of the head cap, a groove is arranged in the middle of the connecting table, a connecting bolt with a tapered end is arranged in the middle of the groove, a connecting groove is arranged outside the groove, and an anti-loose structure is arranged at the top of the shank to prevent the whole bolt from loosening. The connecting table and the limiting table are tightly embedded, the cap and the shank are tightly connected as a whole, the middle of the shank is tightly filled, the rigidity of the shank is improved, the glue bag is gradually squeezed and broken along with the rotation of the connecting bolt, the glue in the glue bag slowly flows out, the effect of uniform glue coating on the surface of the shank is realized, and the glue in the glue bag is used to tightly connect the bolt and the connected part and prevent the bolt from loosening.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fasteners, and in particular, relates to a kind of anti-loose bolts. BACKGROUND

[0002] Bolt connection is the most common mechanical connection method of mechanical structure, but for the bolt connection structure bearing dynamic load or impact load, the bolt connection structure will appear loose phenomenon under the influence of dynamic load or impact load in service process, such as the base bolt of engine is easy to loosen under the influence of vibration load in the process of engine working, once the bolt connection structure loosens, it will lead to the connected parts loose or crack, resulting in the connected structure cannot work normally. To solve this problem, the installer usually applies glue on the bolt, patent application 202110716927.5 discloses an anti-loose bolt, which comprises a cap and a threaded shank, during the screwing process of the bolt, the pressure plate extrudes the capsule, so that the glue is slowly extruded and automatically applied along with the rotation of the bolt, but the capsule in the patent will burst instantaneously after reaching the extrusion limit, causing the glue to flow rapidly, filling the groove with glue, resulting in a significant reduction in the effect of uniform glue application, in addition, the middle part of the shank is provided with a groove, which reduces the overall rigidity of the shank, thereby reducing the connectivity of the bolt. SUMMARY

[0003] The purpose of the present application is to solve the problems existing in the prior art, and to provide an anti-loose bolt with stable connection, strong anti-loose property and uniform glue application.

[0004] In order to achieve the above technical purpose, the technical scheme adopted by the anti-loose bolt of the present application is as follows:

[0005] The utility model provides an anti-loose bolt, including the bolt cap and the bolt column that are connected as a whole, the bolt cap includes the head cap, the bottom of head cap is equipped with the connecting column of connecting bolt column, is equipped with the connecting platform in the bottom of head cap in both ends connecting column, the recess is set up in the middle part of connecting platform, the recess one end is wedge shape, the other end is vertical, is equipped with the connecting bolt of end cone shape in the recess middle part, the recess outside is equipped with the connecting groove, the bolt column top is equipped with the anti-loose structure of preventing the whole bolt loose, the anti-loose structure includes the right-angled triangle limit board of being equipped with in the bolt column top one side, the bottom inboard of right-angled triangle limit board is equipped with the moving platform, the moving platform middle part is projected to the outside, is equipped with the through -hole of the connecting bolt movement in the center, the moving platform one side is embedded with recess wedge end, the other side is embedded with recess vertical end, the moving platform side is equipped with the step that projects to the outside, the step is embedded into the limit platform after moving, the limit platform top is equipped with the connecting platform that projects upwards, left side is equipped with the limit seat of the abutment step surface, the limit platform lower part is equipped with the accommodating groove of accommodating the step, the connecting platform can be inserted into the connecting groove, the bottom of moving platform is equipped with the taper groove, the taper groove is filled with the taper glue water sac, the taper groove with the bolt column surface is through.

[0006] Preferably, the taper glue water sac is filled with a plurality of glue microcapsules, and the glue microcapsules are filled with fastening glue.

[0007] Preferably, the glue microcapsules include molecular sieves or chitosan microspheres filled with glue.

[0008] Preferably, a spiral channel is arranged between the taper groove and the bolt column.

[0009] Preferably, the bottom of the head cap is spot-glued.

[0010] Preferably, the top of the right-angled triangle limit board is provided with a bolt hole for facilitating insertion of the connecting column.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model utilizes the close embedding of the connecting platform and the limit platform to closely connect the bolt cap and the bolt column as a whole while filling the bolt column in the middle tightly to improve the rigidity of the bolt column; the glue sac is arranged in the bolt column, and as the connecting bolt is screwed in, the glue sac is gradually squeezed to break, so that the glue in the glue sac slowly flows out to achieve the effect of uniform gluing on the surface of the bolt column; the glue in the glue sac is used to closely connect the bolt and the connected part while preventing the bolt from loosening under load. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the structural schematic diagram of the utility model;

[0014] Figure 2 is the sectional view of the utility model;

[0015] Figure 3 is a structural diagram of the conical glue capsule in the application.

[0016] In the figure: 1. head cap; 2. connecting column; 3. groove; 4. connecting bolt; 5. connecting groove; 6. right-angled triangular limiting plate; 7. moving table; 8. through hole; 9. step; 10. limiting table; 11. connecting table; 12. limiting seat; 13. containing groove; 14. conical groove; 15. conical glue capsule; 16. glue microcapsule. DETAILED DESCRIPTION

[0017] The application is further illustrated below in combination with the drawings and specific embodiments:

[0018] As Figure 1 — Figure 3As shown, the anti-loose bolt comprises a bolt cap and a bolt column connected as a whole, the bolt cap comprises a head cap 1, the bottom of the head cap 1 is provided with a connecting column 2 connected with the bolt column, the connecting column 2 is provided with a connecting table at the bottom of the head cap 1, the middle of the connecting table is provided with a groove 3, one end of the groove 3 is in the shape of a wedge, the other end is in the shape of a vertical, the middle of the groove 3 is provided with a connecting bolt 4 in the shape of a taper, the outer side of the groove 3 is provided with a connecting groove 5, the top of the bolt column is provided with an anti-loose structure for preventing the whole bolt from loosening, the anti-loose structure comprises a right-angled triangle limiting plate 6 arranged on one side of the top of the bolt column, the top of the right-angled triangle limiting plate is provided with a bolt hole for facilitating the insertion of the connecting column, the inner side of the bottom of the right-angled triangle limiting plate 6 is provided with a moving table 7, the middle of the moving table 7 protrudes outward, the center is provided with a through hole 8 for the movement of the connecting bolt 4, one side of the moving table 7 is embedded with the wedge-shaped end of the groove 3, the other side is embedded with the vertical end of the groove 3, the side of the moving table 7 is provided with a step 9 protruding outward, the step 9 is embedded in a limiting table 10 after moving, the top of the limiting table 10 is provided with a connecting table 11 protruding upward, the left side is provided with a limiting seat 12 abutting against the surface of the step 9, the lower part of the limiting table 10 is provided with an accommodating groove 13 accommodating the step 9, the connecting table 11 can be inserted into the connecting groove 5, the bottom of the moving table 7 is provided with a tapered groove 14, the tapered groove 14 is filled with a tapered glue capsule 15, the tapered glue capsule 15 is filled with a plurality of glue microcapsules 16, the glue microcapsules 16 are filled with fastening glue, the glue microcapsule 16 comprises a molecular sieve or chitosan microsphere filled with glue inside, the tapered groove 14 is in communication with the surface of the bolt column, and a spiral channel is arranged between the tapered groove 14 and the bolt column. A plurality of glue microcapsules 16 are arranged in the tapered glue capsule 15, so that when the tapered glue capsule 15 is pierced, the glue inside the tapered glue capsule 15 spreads along the spiral channel to the surface of the bolt column, as the use time of the bolt is prolonged, the glue in the glue microcapsule 16 flows out from the pores of the molecular sieve or chitosan microsphere, and the bolt and the connected part are filled again, thereby further enhancing the anti-loose property of the bolt, and preventing the glue from flowing into the spiral channel and causing uneven glue coating when the tapered glue capsule 15 is pierced.

[0019] In the application, the bottom of the head cap 1 is spot-coated with glue. By spot-coating the bottom of the head cap 1 with glue, the anti-loose property of the bolt is further enhanced.

[0020] When the application is used, the bolt is screwed into the bolt hole by a wrench or screwdriver, under the thrust of the bolt hole, the right-angled triangle limiting plate 6 moves into the bolt hole gradually, thereby pushing the moving table 7 inside to move inward, the through hole 8 in the center of the moving table 7 is right above the conical groove 14, the step 9 on the side of the moving table 7 is inserted into the accommodating groove 13, the limiting seat 12 abuts against the surface of the step 9, the bolt is continuously screwed until the right-angled triangle limiting plate 6 is immersed into the bolt hole, the bolt hole on the top of the right-angled triangle limiting plate 6 is embedded with the connecting column, with the screwing of the bolt, the connecting table 11 on the bottom of the head cap 1 is gradually embedded with the moving table 7, the connecting bolt 4 is inserted through the through hole 8 and then punctures the conical glue capsule 15, the glue in the conical glue capsule 15 is spread on the surface of the bolt column through the spiral channel, the uniform coating of the glue on the surface of the bolt column is realized, the connectivity between the bolt and the connected part is strengthened, and the problem that the bolt is loosened during the bearing of the dynamic load is prevented.

[0021] In conclusion, the above is only the preferred embodiment of the application, and is not used to limit the scope of the application, and any equivalent change and modification made according to the shape, structure, feature and spirit of the claims of the application should be included in the claims of the application.

Claims

1. A kind of anti-loose type bolt, including the bolt cap and bolt column connected as a whole, the bolt cap includes head cap, the connecting column of the bottom of head cap is equipped with the connecting column of bolt column, two ends connecting column is equipped with the connecting platform in the bottom of head cap, it is characterized by: The connecting table middle part is provided with a groove, one end of which is wedge-shaped, the other end is vertical, a connecting bolt with tapered end is arranged in the middle part of the groove, a connecting groove is arranged outside the groove, the top of the bolt column is provided with an anti-loose structure to prevent the whole bolt from loosening, the anti-loose structure comprises a right-angled triangle limiting plate arranged on one side of the top of the bolt column, a moving table is arranged on the inner side of the bottom of the right-angled triangle limiting plate, the middle part of the moving table protrudes outward, a through hole is arranged in the center of the moving table for the movement of the connecting bolt, one side of the moving table is embedded with the wedge-shaped end of the groove, the other side is embedded with the vertical end of the groove, a step protruding outward is arranged on the side of the moving table, the step is embedded in the limiting table after moving, a connecting table protruding upward is arranged on the top of the limiting table, a limiting seat abutting against the surface of the step is arranged on the left side of the connecting table, an accommodating groove accommodating the step is arranged on the lower part of the limiting table, the connecting table can be inserted into the connecting groove, a tapered groove is arranged on the bottom of the moving table, a tapered glue water capsule is filled in the tapered groove, the tapered groove is communicated with the surface of the bolt column.

2. The anti-loosening bolt according to claim 1, wherein: A plurality of glue water microcapsules are filled in the tapered glue water capsule, and fastening glue is filled between the glue water microcapsules.

3. The self-locking bolt according to claim 2, wherein: The glue water microcapsule comprises molecular sieve or chitosan microspheres filled with glue inside.

4. The self-locking bolt according to claim 1, wherein: A spiral channel is arranged between the tapered groove and the bolt column.

5. The self-locking bolt according to claim 1, wherein: Glue is spot-coated on the bottom of the head cap.

6. The self-locking bolt according to claim 1, wherein: A bolt hole is arranged on the top of the right-angled triangle limiting plate to facilitate the insertion of the connecting column.

Images