CN203412898U

CN203412898U - Spring plate nut with convex plate

Info

Publication number: CN203412898U
Application number: CN201320478548.8U
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 a spring plate nut with a convex plate. The spring plate nut comprises a conical circular truncated cone with an internal threaded through hole, wherein the bottom surface of the circular truncated cone is fixedly connected with spring plates including an upper spring plate and a lower spring plate, and the upper surface of the circular truncated cone is obliquely arranged relative to the lower spring plate; the upper spring plate is parted to form a middle plate which is arranged horizontally and a side plate which is obliquely arranged, and the middle plate is provided with a first through hole; the second end of the side plate is connected with one end of the lower spring plate after being bent downwards; a groove is formed at the junction of the lower spring plate and the side plate; the middle part of the lower spring plate is parted to form the convex plate which is arranged obliquely and upwards, and the convex plate is provided with a second through hole. Compared with the traditional spring plate nut, the spring plate nut with the convex plate has the advantages that a double-layer spring plate structure is adopted, and the lower spring plate is provided with the elastic convex plate and the conical circular truncated cone with an inclined surface, so that the shearing forces and bending moments of the spring plates to a bolt are effectively reduced, the stress state of the bolt is improved, and the service life of the bolt is prolonged; the spring plate nut has the characteristics of simple structure, light weight and connecting stability.

Description

Band flange formula nut with elastic

Technical field

The utility model relates to a kind of nut, relates 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 advantages that anti-loosing effect is good.When nut with elastic is used, the shell fragment on 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 anti-loosening locking effect.Although this nut can play certain locking effect, due to the continuous distortion of shell fragment, shearing force and moment of flexure that screw is subject to are increased, cause screw to go fastening effect because of distortion.

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 band flange formula nut with elastic that improve screw force-bearing situation, increases the service life.

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

A flange formula nut with elastic, comprises the taper round platform with internal thread through hole, the shell fragment of the affixed integrative-structure in bottom surface of round platform, and shell fragment comprises upper and lower horizontally disposed upper shell fragment and lower shell fragment, the upper surface of round platform descends shell fragment to be obliquely installed relatively; Upper shell fragment is by the side plate of cutting the horizontally disposed middle plate of moulding and being obliquely installed, and tabularium has the first through hole, and its upper surface is fixedly connected with the lower surface of round platform, and the first end of middle plate and the first end of side plate connect as one, and its second end is separated with side plate; The one end that connects lower shell fragment after the second end downward bending of side plate; The joint of lower shell fragment and side plate has groove; The middle part of lower shell fragment is cut and is formed acclivitous flange, and flange has the second through hole.

Further technological scheme is:

The joint of the first end of middle plate and the first end of side plate has connecting through hole.

The beneficial effects of the utility model are as follows:

The more existing nut with elastic of the utility model, owing to adopting double-deck elastic piece structure, and elasticity flange is set on lower shell fragment and is provided with the taper round platform of plane of inclination, effectively reduced shell fragment to the shearing force of screw and moment of flexure, improved the force-bearing situation of screw, extended working life, it has, and simple in structure, quality is light, the feature of stable connection.

Accompanying drawing explanation

Fig. 1 is main sectional view of the present utility model.

Fig. 2 is three-dimensional structure diagram 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 taper round platform 3 with internal thread through hole 31, the shell fragment of the affixed integrative-structure in bottom surface of round platform 3, and shell fragment comprises upper and lower horizontally disposed upper shell fragment 1 and lower shell fragment 2, the upper surface 32 of round platform 3 descends shell fragment 2 to be obliquely installed relatively; Upper shell fragment 1 is by the side plate 6 of cutting the horizontally disposed middle plate 5 of moulding and being obliquely installed, middle plate 5 is with the first through hole 51, its upper surface is fixedly connected with the lower surface of round platform 3, and the first end 52 of middle plate 5 connects as one with the first end 61 of side plate 6, and its second end 53 is separated with side plate 6; The one end that connects lower shell fragment 2 after the second end 62 downward bendings of side plate 6; Lower shell fragment 2 has groove 3 with the joint of side plate 6; The middle part of lower shell fragment 2 is cut and is formed acclivitous flange 21, and flange 21 has the second through hole 22; The first end 52 of middle plate 5 has connecting through hole 7 with the joint of the first end 61 of side plate 6, and connecting through hole 7, for connecting lock screw, improves the steadiness connecting.

When the utility model is installed, fastening screw trip bolt (not shown) screws in from the internal thread through hole 31 of taper round platform 3, and after the second through hole 22 through flange 21 on the first through hole 51 of middle plate 5 and lower shell fragment 2, be connected with connected piece (not shown) successively, because taper round platform 3 has the upper surface 32 that is obliquely installed and the flange 21 of lower shell fragment 2 is obliquely installed, when screw constantly screws, middle plate 5 is out of shape downwards around the joint of itself and side plate 6, upper shell fragment 1 is out of shape downwards around side plate 6 and the joint of lower shell fragment 2, flange 21 is because middle plate 5 is to its extruding also distortion downwards, finally make the upper surface 32 of taper round platform 3 in level, thereby the axis of screw and internal thread through hole 31, the axis of the first through hole 51 and the second through hole 22 all overlaps, thereby shearing force and moment of flexure that screw is subject to have greatly been reduced, improved the force-bearing situation of screw.

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. be with flange formula nut with elastic for one kind, it is characterized in that: comprise the taper round platform (3) with internal thread through hole (31), the shell fragment of the affixed integrative-structure in bottom surface of described round platform (3), described shell fragment comprises upper and lower horizontally disposed upper shell fragment (1) and lower shell fragment (2), and the relatively described lower shell fragment of upper surface (32) (2) of described round platform (3) is obliquely installed; Described upper shell fragment (1) is by the side plate (6) of cutting the horizontally disposed middle plate of moulding (5) and being obliquely installed, and described middle plate (5) is with the first through hole (51), and its upper surface is fixedly connected with the lower surface of described round platform (3); The first end (52) of described middle plate (5) connects as one with the first end (61) of side plate (6), and its second end (53) is separated with described side plate (6); The one end that connects described lower shell fragment (2) after the second end (62) downward bending of described side plate (6); Described lower shell fragment (2) has groove (3) with the joint of described side plate (6); The middle part of described lower shell fragment (2) is cut and is formed acclivitous flange (21), and described flange (21) has the second through hole (22).

2. according to band flange formula nut with elastic claimed in claim 1, it is characterized in that: the first end (52) of described middle plate (5) has connecting through hole (7) with the joint of the first end (61) of side plate (6).