CN210484351U

CN210484351U - Anti-loosening bolt

Info

Publication number: CN210484351U
Application number: CN201921525660.6U
Authority: CN
Inventors: 黄书培
Original assignee: Wenzhou Sheng'an Sewing Equipment Co Ltd
Current assignee: Wenzhou Sheng'an Sewing Equipment Co Ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-05-08
Anticipated expiration: 2029-09-12

Abstract

A lockbolt comprising: the bolt main part, the nut, two layers of nuts and soft gasket, bolt main part one end an organic whole is equipped with the nut, set up the first round hole that is used for fixed two layers of nuts on the nut, be equipped with on two layers of nuts with first round hole complex second round hole, the connecting rod passes second round hole and first round hole and is connected nut and two layers of nuts, be equipped with intermeshing's tooth on the contact surface between nut and two layers of nuts, still be equipped with soft gasket between the contact surface between nut and two layers of nuts. The utility model has the advantages that: firstly, the automatic loosening of the bolt can be effectively avoided; secondly, nuts can be repeatedly overlapped, so that the difficulty of tightness increase caused by deformation during tightness is avoided; thirdly, the bolt is fixed through threads, then the annular wall is unfolded through beating, and then the bolt is screwed down to achieve the effect of the expansion bolt.

Description

Anti-loosening bolt

Technical Field

The invention relates to a check bolt.

Background

Bolt and nut mating bolting is a common fastener type, but the vibration of mechanical equipment can cause the fastener to fall off and affect the normal operation of the equipment.

When the nut is tightened, the external contour is easy to deform, so that the tightening effect is poor.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a check bolt.

In order to achieve the purpose, the invention adopts the following technical scheme: a lockbolt comprising: the bolt main part, the nut, two layers of nuts and soft gasket, bolt main part one end an organic whole is equipped with the nut, set up the first round hole that is used for fixed two layers of nuts on the nut, be equipped with on two layers of nuts with first round hole complex second round hole, the connecting rod passes second round hole and first round hole and is connected nut and two layers of nuts, be equipped with intermeshing's tooth on the contact surface between nut and two layers of nuts, still be equipped with soft gasket between the contact surface between nut and two layers of nuts.

Furthermore, the outer sides of the nut and the two-layer nut are in the same polygon for screwing the bolt, and the polygon is matched with the meshing port of the wrench.

Furthermore, the upper end surfaces of the screw cap and the two-layer screw cap are provided with a cross or a straight groove matched with a screwdriver.

Furthermore, thread grooves are formed in the first round hole and the second round hole, and matched threads are formed on the connecting rod.

Furthermore, the first round holes are a plurality of eccentric holes and distributed in an equilateral triangle shape; the second round holes are a plurality of eccentric holes and distributed in an equilateral triangle shape.

Furthermore, the edges of the contact surfaces of the screw cap and the two-layer screw cap are provided with opposite convex edges.

Furthermore, the contact surface of the convex edge of the nut and the two layers of nuts is provided with the teeth which are meshed with each other, the convex edge of the nut and the two layers of nuts surrounds the gap between the nut and the two layers of nuts to form a cavity, a rubber block is arranged in the cavity, a third round hole which is matched with the first round hole and the second round hole is formed in the rubber block, and the volume of the rubber block is equal to the volume of the cavity.

Furthermore, the outer side of the two-layer screw cap is provided with patterns.

Furthermore, the other end face of the bolt main body is provided with an annular wall which is concave, and a meshing gap is arranged on the annular wall.

Furthermore, the side face of the other end of the bolt main body is provided with threads, and the side face of one end of the bolt main body is a smooth face.

The invention has the beneficial effects that: firstly, the automatic loosening of the bolt can be effectively avoided; secondly, nuts can be repeatedly overlapped, so that the difficulty of tightness increase caused by deformation during tightness is avoided; thirdly, the bolt is fixed through threads, then the annular wall is unfolded through beating, and then the bolt is screwed down to achieve the effect of the expansion bolt.

Drawings

Fig. 1 is a sectional view of a check bolt of the present invention.

Figure 2 is a top view of the nut of the present invention.

Figure 3 is a top view of the two-layer nut of the present invention.

Fig. 4 is a top view of the rubber block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, fig. 1-4 are a check bolt comprising: bolt main part 1, the nut 7, two layers of nut 3 and

soft gasket

6, 1 one end an organic whole of bolt main part is equipped with nut 7, offer the first round hole 12 that is used for fixed two layers of nut 3 on the nut 7, be equipped with on two layers of nut 3 with first round hole complex second round hole 13, connecting rod 11 passes second round hole 13 and first round hole 12 and is connected nut 7 and two layers of nut 3, be equipped with intermeshing's tooth on the contact surface of nut 7 and two layers of nut 3 both, still be equipped with soft gasket 6 between the contact surface of nut 7 and two layers of nut 3 both.

The outer sides of a nut 7 and a double-layer nut 3 are the same polygon for screwing the bolt, and the polygon is matched with an occlusion port of a wrench.

The anti-loose bolt has cross or straight slot in the upper end of the nut 7 and the second layer nut 3 for matching with screw driver.

A locking bolt is provided, wherein thread grooves are arranged in a first round hole 12 and a second round hole 13, and a connecting rod is provided with matched threads.

A kind of check bolt, the first round hole 12 is a plurality of eccentric holes, distribute in equilateral triangle; the second circular holes 13 are a plurality of eccentric holes and distributed in an equilateral triangle.

The locking bolt has two layers of

nuts

3 and 7 with opposite raised edges 2.

The utility model provides a locking bolt, is equipped with intermeshing's tooth on the contact surface on the protruding edge of nut 7 and two layers of nut 3, and the protruding edge 2 of nut and two layers of nut surrounds vacuole 4 with the clearance between nut 7 and two layers of nut 3, is equipped with block rubber 5 in the cavity 4, is equipped with the third round hole 14 of the first round hole of cooperation and second round hole on block rubber 5, and the block rubber volume equals the cavity volume. The volume of the rubber block is equal to that of the cavity, and the circular hole is formed in the rubber block, so that the rubber block can overflow the cavity when being penetrated by the connecting rod, and the purpose of tightly attaching to the connecting rod, blocking the first circular hole, the second circular hole and the convex edge meshing surface is achieved. The rubber block is matched with the cavity in size.

The utility model provides a check bolt, the outside of two layers of nut is equipped with the decorative pattern.

A locking bolt, another terminal surface of the bolt body 1 has annular wall 10 forming the indent, there is interval of meshing on the annular wall.

A screw thread 8 is arranged on the side surface of the other end of a bolt main body, and a screw thread is arranged on the side surface of one end of the bolt main body. Smooth surfaces 9 are arranged between the threads at the two ends. The bolt is fixed by screw threads, then the annular wall is unfolded by beating, and then the bolt is screwed down to achieve the effect of the expansion bolt. Further avoiding falling off.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A lockbolt comprising: bolt main part, nut, two layers of nut and soft gasket, bolt main part one end an organic whole is equipped with the nut, its characterized in that: offer the first round hole that is used for fixed two layers of nut on the nut, be equipped with on two layers of nut with first round hole complex second round hole, the connecting rod passes second round hole and first round hole and is connected nut and two layers of nut, is equipped with intermeshing's tooth on the contact surface between nut and two layers of nut, still is equipped with soft gasket between the contact surface between nut and two layers of nut.

2. A check bolt as defined in claim 1, wherein: the outer sides of the nut and the two layers of nuts are the same polygons for screwing the bolts, and the polygons are matched with the occlusion ports of the wrench.

3. A check bolt as defined in claim 2, wherein: the upper end surfaces of the screw cap and the two-layer screw cap are provided with a cross or a straight groove matched with a screwdriver.

4. A check bolt as defined in claim 3, wherein: threaded grooves are formed in the first round hole and the second round hole, and matched threads are arranged on the connecting rod.

5. A check bolt as defined in claim 1, wherein: the first round holes are a plurality of eccentric holes and distributed in an equilateral triangle; the second round holes are a plurality of eccentric holes and distributed in an equilateral triangle shape.

6. A check bolt as defined in claim 1, wherein: the edges of the contact surfaces of the screw cap and the two-layer screw cap are provided with opposite convex edges.

7. A check bolt according to claim 6, wherein: the contact surface on the protruding edge of nut and two layers of nuts is equipped with intermeshing's tooth, and the protruding edge of nut and two layers of nuts surrounds the vacuole formation with the clearance between nut and the two layers of nuts, is equipped with the block rubber in the cavity, is equipped with the third round hole of the first round hole of cooperation and second round hole on the block rubber, and the block rubber volume equals the cavity volume.

8. A check bolt according to claim 6, wherein: the outer side of the two-layer screw cap is provided with patterns.

9. A check bolt as defined in claim 1, wherein: the other end face of the bolt main body is provided with an annular wall which is concave, and the annular wall is provided with a meshed gap.

10. A check bolt as defined in claim 1, wherein: the side face of the other end of the bolt main body is provided with threads, and the side face of one end of the bolt main body is a smooth face.