CN103362925A

CN103362925A - Pre-tensioning elastic piece with hook parts

Info

Publication number: CN103362925A
Application number: CN2013103403067A
Authority: CN
Inventors: 孙毅刚
Original assignee: Wuxi Zhangjing Yugang Machinery Plant
Current assignee: Wuxi Zhangjing Yugang Machinery Plant
Priority date: 2013-08-05
Filing date: 2013-08-05
Publication date: 2013-10-23

Abstract

The invention relates to a pre-tensioning elastic piece with hook parts .The pre-tensioning elastic piece with the hook parts comprises a base board provided with a first conical through hole. The lower surface of the base board is fixedly connected with a cone frustum of an inverted cone structure. The cone frustum is provided with a second conical through hole, wherein the central axis of the first conical through hole coincides with that of the second conical through hole. The two ends of the base board extend respectively and then bend downwards to form elastic piece bodies which are symmetric with each other. Each elastic piece body comprises a bending part which bends inwards, wherein the tail end of the bending part bends outwards to form one hook part, each hook part is provided with an arc-shaped groove, and a certain distance is reserved between the hook parts. Compared with an existing elastic piece nut, the pre-tensioning elastic piece with the hook parts has the advantages that due to the adoption of the elastic piece bodies with the hook parts, when a screw is tightened, the elastic piece bodies and the hook parts of the elastic piece bodies deform together, large elastic force is provided for the screw, and the connection stability is improved.

Description

Pretension shell fragment with the hook part

Technical field

The present invention relates to a kind of nut, relate in particular to nut with elastic.

Background technique

Nut is to be applied to the most frequently used part that mechanical structure is fastenedly connected.Nut with elastic is a kind of novel nut, and more common nut has the good characteristics of anti-loosing effect.When nut with elastic used, the shell fragment on the nut can produce deformation, and along with the impacting force of nut is larger, the elastic force of shell fragment is also larger, thereby plays the anti-loosening locking effect.Although this nut can play certain locking effect, because the continuous distortion of shell fragment so that the shearing force that screw is subject to and moment of flexure increase, causes screw to go fastening effect because of distortion.

Summary of the invention

The applicant studies and improves for the above-mentioned shortcoming of prior art, provides a kind of simple in structure, the pretension shell fragment with the hook part that improve the screw force-bearing situation, increases the service life.

The technical solution adopted in the present invention is as follows:

A kind of pretension shell fragment with the hook part comprises the seat board with the first conical through-hole, the round platform of the affixed inverted cone-shaped structure of lower surface of seat board, and round platform has the second conical through-hole, the central axes setting of the central axis of the first conical through-hole and the second conical through-hole; The symmetrical shell fragment of backward lower bending and molding is extended respectively at the two ends of seat board, and shell fragment has the bending part of inside bending, the end of the bending part bending forming hook part that makes progress, and the hook part has curve bath, has certain spacing between the hook part.

Beneficial effect of the present invention is as follows:

The more existing nut with elastic of the present invention, owing to the shell fragment that adopts with the hook part, when screw screwed, shell fragment and its hook part were out of shape jointly, offered the larger elastic force of screw, thereby had improved the steadiness that connects.

Description of drawings

Fig. 1 is main sectional view of the present invention.

Fig. 2 is three-dimensional structure diagram of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.

See Fig. 1 and Fig. 2, the present invention includes the seat board 1 with the first conical through-hole 11, the round platform 3 of the affixed inverted cone-shaped structure of lower surface of seat board 1, round platform 3 have the central axes setting of central axis and second conical through-hole 31 of the second conical through-hole 31, the first conical through-holes 11; The symmetrical shell fragment 2 of backward lower bending and molding is extended respectively at the two ends of seat board 1, shell fragment 2 has the bending part 23 of inside bending, the end of the bending part 23 bending forming hook part 21 that makes progress, hook part 21 has

curve bath

22,21 of hook parts have certain spacing 4, so that 22 of curve baths just in time can pass through the fastening screw trip bolt (not shown).

When the present invention installed, the fastening screw trip bolt (not shown) screwed in from the first conical through-hole 11 of seat board 1, and was connected with the connected piece (not shown) after passing successively the spacing 4 of 21 of hook parts of the second conical through-hole 31 of round platform 3 and shell fragment 2.When screw constantly screwed, the hook part 21 of shell fragment 2 was out of shape downwards and hook part 21 generation distortion own around the joint of seat board 1 with shell fragment 2, thereby produces larger elastic force, so that the increase of the coupling mechanism force of screw, thereby improved the steadiness of connection.

Above description is explanation of the invention, is not that limited range of the present invention is referring to claim, in the situation that without prejudice to spirit of the present invention, the present invention can do any type of modification to the restriction of invention.

Claims

1. pretension shell fragment with the hook part, it is characterized in that: comprise the seat board (1) with the first conical through-hole (11), the round platform (3) of the affixed inverted cone-shaped structure of lower surface of described seat board (1), described round platform (3) has the second conical through-hole (31), the central axes setting of the central axis of described the first conical through-hole (11) and the second conical through-hole (31); The symmetrical shell fragment (2) of backward lower bending and molding is extended respectively at the two ends of described seat board (1), described shell fragment (2) has the bending part (23) of inside bending, the end of described bending part (23) the bending forming hook part (21) that makes progress, described hook part (21) has curve bath (22), has certain spacing (4) between described hook part (21).