CN212272764U

CN212272764U - Screw and nut structure with multi-layer gradient

Info

Publication number: CN212272764U
Application number: CN202020865292.6U
Authority: CN
Inventors: 吴国灿; 占洪平; 吴昭阳
Original assignee: Fujian Huagai Machinery Manufacture Co ltd
Current assignee: Fujian Huagai Machinery Manufacture Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-01-01
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to a hardware material technical field specifically is a screw nut structure of multilayer gradient, including gradient nut and bolt, the integrative bolt that is equipped with of gradient nut lower extreme that takes shape, gradient nut include first nut, and first nut lower extreme edge integrative taking shape is equipped with the flange pad, and flange pad lower surface is equipped with anti-skidding line, and the integrative second nut that is equipped with in first nut upper end, second nut diameter are less than first nut, and the movable groove has been seted up to the bolt inside, and the extrusion mouth that link up the bolt lateral wall is seted up to movable groove both sides, and beneficial effect is: set up the gradient nut, can use the spanner of different specifications to install and dismantle, under the condition that does not have the spanner of one of them specification, can use the spanner of other specifications, use convenient and fast more, increased fastening structure moreover, at bolt threaded connection article do not can further increase the tightness of being connected of bolt and article, improve fixed effect, prevent that the bolt pine from taking off and influence the result of use.

Description

Screw and nut structure with multi-layer gradient

Technical Field

The utility model relates to five metals material technical field specifically is a screw nut structure of multilayer gradient.

Background

A bolt is a mechanical part, and a cylindrical threaded fastener matched with a nut. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

The nut of general bolt all is the one deck structure, need use supporting spanner to install and dismantle, inconvenient installation dismantlement when not having supporting spanner, and it is convenient inadequately to use, and general bolt-up effect is not strong enough moreover, can influence the fastening effect along with the not hard up slippage of vibrations of fastening article, for this, the utility model provides a screw nut structure of multilayer gradient is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw nut structure of multilayer gradient to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a screw nut structure of multilayer gradient, includes gradient nut and bolt, the integrative shaping of gradient nut lower extreme is equipped with the bolt, the gradient nut includes first nut, the integrative shaping flange pad that is equipped with in first nut lower extreme edge, flange pad lower surface is equipped with anti-skidding line, the integrative shaping second nut that is equipped with in first nut upper end, second nut diameter is less than first nut, the movable groove has been seted up to the bolt inside, the extrusion opening that link up the bolt lateral wall is seted up to movable groove both sides, swing joint fastening shell fragment in the movable groove, the outside salient in fastening shell fragment lower extreme both sides stretches out from extruding the mouth.

Preferably, the bottom end of the inner part of the movable groove is integrally formed and provided with an extrusion inclined block, the inclined edge of the extrusion inclined block corresponds to the extrusion port, the middle of the upper end of the extrusion inclined block is integrally formed and provided with a limiting rod, a spring is sleeved on the outer side of the limiting rod, and a fastening elastic sheet is sleeved on the outer side of the limiting rod at the upper end of the spring.

Preferably, the fastening elastic sheet comprises an extrusion plate, a limiting insertion hole is formed in the extrusion plate, a wear-resistant gasket is embedded and connected to the inner wall of the limiting insertion hole, the limiting insertion hole is inserted in the outer side of the limiting rod, extrusion pressing rods are integrally formed on two sides of the lower end of the extrusion plate, and wear-resistant cushion layers are welded to the end portions of the extrusion pressing rods.

Preferably, a bolt hole is formed in a bolt at the upper end of the movable groove, a nut groove is formed in the middle of the gradient nut, the bolt hole is communicated with the nut groove, an extrusion bolt is connected with the bolt in the bolt hole, an inner hexagonal nut is integrally formed at the upper end of the extrusion bolt and is inserted in the nut groove, a limiting slot is formed in the middle of the lower end of the extrusion bolt, the limiting slot is sleeved on the outer side of the limiting rod, and the bottom of the extrusion bolt abuts against the upper end of the fastening elastic sheet.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set up the gradient nut, can use the spanner of different specifications to install and dismantle, under the condition that does not have the spanner of one of them specification, can use the spanner of other specifications, use convenient and fast more, increased fastening structure moreover, do not can further increase the tightness of being connected of bolt and article at bolt threaded connection at article, improve fixed effect, prevent that the bolt pine from taking off and influence the result of use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural view of the fastening spring in fig. 2.

In the figure: the anti-theft bolt comprises a gradient nut 1, a bolt 2, a first nut 3, a second nut 4, a flange pad 5, an extrusion port 6, a fastening elastic sheet 7, a movable groove 8, an extrusion inclined block 9, a limiting rod 10, a spring 11, a bolt hole 12, an extrusion bolt 13, a limiting slot 14, a nut groove 15, a hexagon socket nut 16, an extrusion plate 17, an extrusion compression rod 18, a wear-resistant cushion layer 19, a limiting insertion hole 20 and a wear-resistant gasket 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a screw nut structure of multilayer gradient, including gradient nut 1 and

bolt

2, 1 integrative taking shape of lower extreme of gradient nut is equipped with bolt 2, gradient nut 1 includes

first nut

3, 3 lower extreme edge integrative taking shape of first nut are equipped with

flange pad

5, 5 lower surfaces of flange pad are equipped with anti-skidding line, 3 upper end integrative taking shape of first nut are equipped with

second nut

4, 4 diameters of second nut are less than

first nut

3, 2 inside movable groove 8 of having seted up of bolt, the extrusion opening 6 that link up 2 lateral walls of bolt is seted up on 8 both sides of movable groove, swing joint fastening shell fragment 7 in the

movable groove

8, 7 lower extreme both sides of fastening shell fragment are outwards outstanding from extruding opening 6 and are stretched out.

The utility model discloses can further set up to, 8 inside bottom integrated into one piece's of activity groove are equipped with extrusion sloping block 9, extrusion sloping block 9 hypotenuse corresponds with extrusion mouth 6, the integrative gag lever post 10 that is equipped with that takes shape in the middle of extrusion sloping block 9 upper end, gag lever post 10 outside cover is equipped with spring 11, gag lever post 10 outside cover of spring 11 upper end is established and is fastened shell fragment 7, can expand to both sides with the depression bar 18 of extruding of fastening shell fragment 7 lower extreme both sides through extrusion sloping block 9, and then stretch out from extrusion mouth 6, butt fastening article, increase fastening effect, gag lever post 10 then can play the effect of restriction fastening shell fragment 7 position, prevent fastening shell fragment 7 position change, influence fastening effect or damage, influence life.

The utility model discloses can further set up to, fastening shell fragment 7 includes stripper plate 17, has seted up spacing jack 20 on the stripper plate 17, and the wear-resisting packing ring 21 of connection is inlayed to spacing jack 20 inner wall, and spacing jack 20 is pegged graft in the gag lever post 10 outside, and the integrative shaping being equipped with in stripper plate 17 lower extreme both sides extrudes depression bar 18, extrudes depression bar 18 tip welding wear-resisting bed course 19, can increase bolt 2's fastening effect through fastening shell fragment 7, prevents that bolt 2 pine from taking off, improves the result of use.

The utility model can be further arranged in that a bolt hole 12 is arranged in the bolt 2 at the upper end of the movable groove 8, a nut groove 15 is arranged in the middle of the gradient nut 1, the bolt hole 12 is communicated with the nut groove 15, a bolt is connected with an extrusion bolt 13 in the bolt hole 12, an inner hexagonal nut 16 is integrally formed at the upper end of the extrusion bolt 13, the inner hexagonal nut 16 is inserted in the nut groove 15, a limit slot 14 is arranged in the middle of the lower end of the extrusion bolt 13, the limit slot 14 is sleeved outside the limiting rod 10, the bottom of the extrusion bolt 13 is abutted against the upper end of the fastening elastic sheet 7, the fastening elastic sheet 7 can be extruded by the extrusion bolt 13, and the fastening elastic sheet 7 can play a role of increasing the fastening effect, the feeding is carried out by the extrusion bolt 13, the feeding precision and the force can be effectively increased, the stability of the fastening elastic sheet, the external shape is not influenced, and the aesthetic property is improved.

The working principle is as follows: during operation, connect back with each part of bolt main part, with 2 threaded connection of bolt in the article that need connect, and through the nut that corresponds with bolt end fastening fixed, then 12 threaded connection extrusion bolt 13 in the bolt hole of 2 insides, extrusion bolt 13 feeds through hexagon spanner internal rotation, until the spacing slot 14 cover that sets up the bottom is established on 2 inside integrated into one piece's gag lever post 10 of bolt, continue to extrude downwards through extrusion bolt 13, can establish spacing fastening shell fragment 7 and push down with the gag lever post 10 upper cover, the hypotenuse of the 18 butt extrusion sloping blocks 9 of the depression bar 18 butt that extrude of fastening shell fragment 7 lower extreme both sides, outwards expand, and from extruding mouth 6 from extruding to the bolt 2 outside, the article of connection in the butt bolt 2 outside, fasten, can effectively improve bolt fastening effect, and improve the result of use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a screw nut structure of multilayer gradient, includes gradient nut (1) and bolt (2), its characterized in that: the gradient nut (1) lower extreme integrated into one piece is equipped with bolt (2), gradient nut (1) includes first nut (3), first nut (3) lower extreme edge integrated into one piece is equipped with flange pad (5), flange pad (5) lower surface is equipped with anti-skidding line, first nut (3) upper end integrated into one piece is equipped with second nut (4), second nut (4) diameter is less than first nut (3), movable groove (8) have been seted up to bolt (2) inside, extrusion mouth (6) of lining up bolt (2) lateral wall are seted up to movable groove (8) both sides, swing joint fastening shell fragment (7) in movable groove (8), fastening shell fragment (7) lower extreme both sides are outwards outstanding and are stretched out from extrusion mouth (6).

2. The multi-layer gradient screw and nut structure of claim 1, wherein: the utility model discloses a fixing device for a motor vehicle, including activity groove (8), extrusion sloping block (9) are equipped with of inside bottom integrated into one piece of activity groove (8), extrusion sloping block (9) hypotenuse corresponds with extrusion mouth (6), integrated into one piece is equipped with gag lever post (10) in the middle of extrusion sloping block (9) upper end, gag lever post (10) outside cover is equipped with spring (11), fastening shell fragment (7) are established to gag lever post (10) outside cover of spring (11) upper end.

3. A multi-layer gradient screw and nut structure as defined in claim 2, wherein: the fastening elastic sheet (7) comprises an extrusion plate (17), a limiting insertion hole (20) is formed in the extrusion plate (17), a wear-resistant gasket (21) is embedded and connected to the inner wall of the limiting insertion hole (20), the limiting insertion hole (20) is inserted into the outer side of the limiting rod (10), extrusion pressing rods (18) are integrally formed on two sides of the lower end of the extrusion plate (17), and wear-resistant cushion layers (19) are welded to the end portions of the extrusion pressing rods (18).

4. The multi-layer gradient screw and nut structure of claim 1, wherein: bolt hole (12) have been seted up in bolt (2) of activity groove (8) upper end, nut groove (15) have been seted up in the middle of gradient nut (1), bolt hole (12) intercommunication nut groove (15), bolted connection extrusion bolt (13) in bolt hole (12), what extrusion bolt (13) upper end integrated into one piece was equipped with hexagon socket cap nut (16), hexagon socket cap nut (16) are pegged graft in nut groove (15), spacing slot (14) have been seted up in the middle of extrusion bolt (13) lower extreme, spacing slot (14) cover is established in the gag lever post (10) outside, extrusion bolt (13) bottom butt fastening shell fragment (7) upper end.