CN217462806U

CN217462806U - Shock attenuation spacing bolt

Info

Publication number: CN217462806U
Application number: CN202220667902.0U
Authority: CN
Inventors: 郑高林
Original assignee: Taizhou Yuantuo Machinery Co ltd
Current assignee: Taizhou Yuantuo Machinery Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-09-20
Anticipated expiration: 2032-03-24

Abstract

The utility model provides a spacing bolt of shock attenuation, the screw cap comprises a screw cap, two at least spacing grooves are seted up to a side end face of screw cap, the screw cap is located a plurality ofly a side end face of spacing groove still is equipped with the double-screw bolt, the periphery side of double-screw bolt is equipped with the external screw thread, the cover is equipped with the embedding on the double-screw bolt rubber pad in the screw cap, lie in on the double-screw bolt the rubber pad is kept away from a side cover of screw cap is equipped with the backup pad, the backup pad orientation a side end face of screw cap set up two at least with a plurality of spacing groove complex spacing post. The utility model discloses a spacing bolt of shock attenuation carries out spacing processing to the rubber pad between nut and work piece, has guaranteed the rubber pad for the holistic stability of bolt, and then has guaranteed the shock attenuation effect of bolt.

Description

Shock attenuation spacing bolt

Technical Field

The utility model belongs to the bolt field especially relates to a spacing bolt of shock attenuation.

Background

The bolt is as common part, by the wide application in our daily production life, but the bolt of using under the different occasion also needs to satisfy different demands, like the car, the great mechanical equipment of some vibrations nature such as train need apply the bolt that has the shock attenuation effect when carrying out production assembly, the mode that rubber pad or rubber sleeve were established to the cover above the nut is added to the most adoption of current bolt shock attenuation below the nut, although the shock attenuation effect of bolt has been satisfied, but the rubber pad of movable interpolation and the seal cover stability of cover setting are relatively poor, rubber pad or rubber sleeve take place the displacement for the bolt when the vibrations that produce during equipment operation, lead to the shock attenuation nature of bolt to reduce, and then make the bolt take place to become flexible for the work piece, cause danger.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough, provide a spacing bolt of shock attenuation with function.

The utility model discloses a realize above-mentioned purpose, provide following technical scheme, a spacing bolt of shock attenuation, the screw cap comprises a nut, two at least spacing grooves are seted up to a side end face of screw cap, the screw cap is located a plurality of a side end face of spacing groove still is equipped with the double-screw bolt, the periphery side of double-screw bolt is equipped with the external screw thread, the cover is equipped with the embedding on the double-screw bolt rubber pad in the screw cap, lie in on the double-screw bolt the rubber pad is kept away from a side cover of screw cap is equipped with the backup pad, the backup pad orientation a side end face of screw cap sets up two at least and is in a plurality of spacing post of spacing groove complex.

Preferably, the plurality of limiting grooves are arranged on the end face of the nut at equal intervals along the circumferential direction of the nut.

Preferably, the plurality of limiting columns are uniformly distributed on the end face, facing the screw cap, of one side of the supporting plate in the circumferential direction of the supporting plate.

Preferably, the number of the plurality of limiting columns is equal to that of the plurality of limiting grooves, and the corresponding limiting columns are in interference fit with the limiting grooves.

Preferably, the bolt further comprises a nut matched with the screw, and an inner end face of the nut is provided with an internal thread matched with the external thread.

To sum up, compared with the prior art, the utility model has the following beneficial effects:

1. through the mode in the rubber pad embedding nut, the stability of rubber pad in the nut below has been improved, and the cooperation between backup pad and a plurality of spacing post and a plurality of spacing groove, inject the rubber pad position of nut below once more, guaranteed bolt locking back, the accuracy and the fixity of rubber pad position have guaranteed the shock attenuation effect of bolt, it is not hard up for the nut emergence when external ring changes effectively to have solved current loose dynamic formula rubber pad, lead to the rubber pad position to take place to lap, influence the shock attenuation effect of bolt.

2. Through the mode at rubber pad below installation backup pad, utilize the backup pad to keep apart the rubber pad and by the through-hole on the locking work piece, avoided bolt locking in-process rubber pad to work piece through-hole sunken, the clear circumstances that leads to the damping performance and the locking effect of bolt to reduce takes place.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a cross-sectional view taken along the direction a-a in fig. 1 according to the present invention.

Fig. 4 is a partially enlarged schematic view of the point B in fig. 3 according to the present invention.

10. A nut; 11. a stud; 12. an external thread; 13. a nut; 14. an internal thread; 15. a rubber pad; 16. a support plate; 17. a limiting column.

Detailed Description

In order to make the technical field personnel understand the utility model discloses the scheme, will combine the drawing in the embodiment of the utility model below, to the technical scheme in the embodiment of the utility model carries out clear, complete description.

As shown in the figures 1-4, a shock attenuation limit bolt, including nut 10, the sunken draw-in groove that is formed with of a side end face of nut 10 towards the central point department of nut 10, and at least two spacing grooves are seted up along the circumferencial direction of nut 10 to a side end face that nut 10 kept away from the draw-in groove, and the pattern of nut 10 and the pattern of draw-in groove all can be one of rectangle, circular, hexagon for multiple spanners such as available interior hexagonal of this bolt, running gap rotate the locking.

In the embodiment, a stud 11 is arranged on the end surface of one side of the nut 10 far away from the clamping groove, the stud 11 is composed of a smooth section close to the nut 10 and a threaded section far away from the nut 10, and an external thread 12 is arranged on the outer periphery of the threaded section of the stud 11;

the stud 11 is sleeved with a rubber pad 15, the part of the rubber pad facing the stud 11 is embedded into one side end face, far away from the clamping groove, of the nut 10, a supporting plate 16 is further sleeved on one side, far away from the nut 10, of the stud 11, the supporting plate 16 is provided with at least two limiting columns 17 facing one side end face of the nut 10, the number of the limiting columns 17 is equal to that of the limiting grooves in the nut, and the limiting columns 17 are in one-to-one corresponding fit with the liver-entering limiting grooves;

the stability of the rubber pad 15 below the nut 10 is improved by embedding the rubber pad 15 into the nut 10, and the matching between the support plate 16, the plurality of limiting columns 17 and the plurality of limiting grooves limits the position of the rubber pad 15 below the nut 10 again, so that the accuracy and the fixity of the position of the rubber pad after the bolt is locked are ensured, the damping effect of the bolt is ensured, and the problem that the existing loose rubber pad is loosened relative to the nut when the external annular changes, so that the position of the rubber pad is covered by the cover plate, and the damping effect of the bolt is influenced is effectively solved;

further, through the mode of at rubber pad 15 below installation backup pad 16, utilize backup pad 16 to keep apart rubber pad 15 and the through-hole of being locked on the work piece, avoided bolt locking in-process rubber pad to sunken to the work piece through-hole, the clear circumstances that leads to the shock attenuation performance and the locking effect of bolt to reduce takes place.

Further, the bolt further comprises a nut 13 matched with the stud 11, and an internal thread 14 matched with the external thread 12 is arranged on the inner wall of the nut 13.

It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Claims

1. The utility model provides a spacing bolt of shock attenuation which characterized in that: including nut (10), at least two spacing grooves are seted up to a side end face of nut (10), nut (10) are located a plurality of a side end face of spacing groove still is equipped with double-screw bolt (11), the periphery side of double-screw bolt (11) is equipped with external screw thread (12), the cover is equipped with the embedding on double-screw bolt (11) rubber pad (15) in nut (10), lie in on double-screw bolt (11) rubber pad (15) are kept away from one side cover of nut (10) is equipped with backup pad (16), backup pad (16) orientation a side end face of nut (10) sets up two at least with a plurality of spacing groove complex spacing post (17).

2. The shock-absorbing limit bolt of claim 1, wherein: the limiting grooves are arranged on the end face of the nut (10) at equal intervals along the circumferential direction of the nut (10).

3. The shock-absorbing limit bolt of claim 1, characterized in that: a plurality of spacing posts (17) are evenly distributed along the circumferential direction of the supporting plate (16) and face the end face of one side of the screw cap (10) on the supporting plate (16).

4. The shock-absorbing limit bolt of claim 1, wherein: the number of the limiting columns (17) is equal to that of the limiting grooves, and the corresponding limiting columns (17) are in interference fit with the limiting grooves.

5. The shock-absorbing limit bolt of claim 1, wherein: the bolt further comprises a nut (13) matched with the stud (11), and an internal thread (14) matched with the external thread (12) is arranged on the inner end face of the nut (13).