CN203412890U

CN203412890U - Elastic sheet of arched structure

Info

Publication number: CN203412890U
Application number: CN201320478676.2U
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: 2014-01-29
Anticipated expiration: 2023-08-05

Abstract

The utility model relates to an elastic sheet of an arched structure. The elastic sheet comprises a circular body of a plate-shaped structure, wherein the body comprises arched parts which are transversely and symmetrically distributed as well as sunken parts which are longitudinally and symmetrically arranged; the middle part of the body is cut and then upwards bent to form the elastic sheets which are symmetrically distributed bilaterally; distance is provided among longitudinal two sides of each of the elastic sheets and the body; arc-shaped grooves are formed at transverse sides of the elastic sheets; through holes are formed among the arc-shaped grooves. Compared with the existing elastic sheet nut, the body has a deformable arched part, and the symmetrically distributed elastic sheets are uniform in deformation to provide greater pre-tightening force for bolts, and therefore, shearing force as well as bending moment to bolts is smaller. Besides, the elastic sheet of the arched structure has characteristics of being simple in structure, long in service life, high in connecting stability and convenient to machine.

Description

The shell fragment of arch structure

Technical field

The utility model relates to pad, relates in particular to resilient pad.

Background technique

The shell fragment of arch structure is to prevent the loosening parts of fastening piece such as screw or nut.The shell fragment of existing arch structure is generally with the structure of annular opening, and its shortcoming is the force unbalance that is subject to making between screw bolt and nut, causes the steadiness of connection poor.

Model utility content

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

The technological scheme that the utility model adopts is as follows:

A shell fragment for arch structure, comprises the arch portion that the circular body of platy structure, body comprise that lateral symmetry is arranged and the lower dent being longitudinally arranged symmetrically with; The middle part of body is through cutting backward upper bending forming shell fragment, and shell fragment is and is symmetrically arranged, and between longitudinal both sides of shell fragment and body, has spacing; The transverse sides of shell fragment all has arc groove, forms through hole between arc groove.

The beneficial effects of the utility model are as follows:

The more existing nut with elastic of the utility model, because body has deformable arch portion, and the deformation of symmetrical shell fragment is even, offer the pretightening force that screw is larger, it is less to the shearing force of screw and moment of flexure, it has simple in structure, long service life, the feature that stable connection is high and easy to process.

Accompanying drawing explanation

Fig. 1 is three-dimensional structure diagram of the present utility model.

Fig. 2 is main sectional view of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described.

See Fig. 1 and Fig. 2, the utility model comprises the circular body 1 of platy structure, and body 1 comprises the arch portion 12 that lateral symmetry is arranged and the lower dent 11 being longitudinally arranged symmetrically with; The middle part of body 1 is through cutting backward upper bending forming shell fragment 2, and shell fragment 2 is and is symmetrically arranged, and 1 of longitudinal both sides of shell fragment 2 and body have spacing 5, and spacing 5 is convenient to the bending and molding of shell fragment 2; The transverse sides of shell fragment 2 all has

arc groove

3, and 3 of arc grooves form through hole 4, and the size of through hole 4 meets passing through of screw (bolt).

The utility model in use, bolt (not shown) is connected with connected piece through through hole 4 is rear, and because shell fragment 2 is symmetrically distributed on body 1, its distortion evenly, and the arch portion 12 of body also produces deformation simultaneously, the two elastic force providing has improved bolted reliability, can avoid shell fragment to produce shearing force to bolt simultaneously, improves the force-bearing situation of bolt, it has simple in structure, easy to process, long service life, the feature of stable connection.

More than describing is to explanation of the present utility model, is not the restriction to model utility, and the utility model limited range is referring to claim, and without prejudice to spirit of the present utility model in the situation that, the utility model can be done any type of modification.

Claims

1. a shell fragment for arch structure, comprises and it is characterized in that the circular body (1) of platy structure: described body (1) comprises the arch portion (12) that lateral symmetry is arranged and the lower dent (11) being longitudinally arranged symmetrically with; The middle part of described body (1) is through cutting backward upper bending forming shell fragment (2), and described shell fragment (2) is and is symmetrically arranged, and between longitudinal both sides of shell fragment (2) and body (1), has spacing (5); The transverse sides of described shell fragment (2) all has arc groove (3), forms through hole (4) between described arc groove (3).