CN103398075A - Pre-tightening elastic piece of screw - Google Patents
Pre-tightening elastic piece of screw Download PDFInfo
- Publication number
- CN103398075A CN103398075A CN2013103403086A CN201310340308A CN103398075A CN 103398075 A CN103398075 A CN 103398075A CN 2013103403086 A CN2013103403086 A CN 2013103403086A CN 201310340308 A CN201310340308 A CN 201310340308A CN 103398075 A CN103398075 A CN 103398075A
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- elastic piece
- shell fragment
- screw
- hole
- groove
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Abstract
The invention relates to a pre-tightening elastic piece of a screw. The pre-tightening elastic piece of the screw comprises an elastic piece body of a U-shaped structure, wherein an arc concave groove is formed in a closed end of the elastic piece body. The elastic piece body comprises an upper elastic piece body with a first through hole and a lower elastic piece with a second through hole, wherein the lower elastic piece is horizontally arranged, a boss with an inclined surface is arranged on the upper surface of the lower elastic piece and is provided with a second through hole, the upper elastic piece is arranged obliquely, the upper surface of the upper elastic piece is fixedly connected with an arc connecting plate which is provided with a through groove, a third through hole is formed in the middle of the through groove, and a tail portion bent upwards is arranged at the tail end of the upper elastic piece. Compared with an existing elastic piece nut, due to the facts that a double-layer elastic piece structure is adopted and the boss with the inclined surface and the arc connecting plate are arranged on the elastic piece body, the pre-tightening elastic piece of the screw effectively lowers the shearing force and bending moment of the elastic piece body on the screw, improves the stress condition of the screw, prolongs the service life, and has the advantages of being simple in structure, light in weight and firm in connection.
Description
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 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,, due to the continuous distortion of shell fragment, make shearing force and the moment of flexure that screw is subject to increase, cause screw to go fastening effect because of distortion.
Summary of the invention
The applicant, for the above-mentioned shortcoming of prior art, studies and improves, and provides a kind of simple in structure, the pretension shell fragment of the screw 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 of screw, comprise the shell fragment of analog-U shaped structure, and the closed end of shell fragment has arc groove, and shell fragment comprises the upper shell fragment with the first through hole setting up and down and with the lower shell fragment of the second through hole; Lower shell fragment is horizontally disposed with, and its upper surface has the boss with inclined-plane, and boss has the second through hole; Upper shell fragment is obliquely installed, the affixed arc connecting plate of its upper surface, and connecting plate has groove, and the middle part of groove has third through-hole; The end of upper shell fragment has the upwards afterbody of bending.
Beneficial effect of the present invention is as follows:
The more existing nut with elastic of the present invention, owing to adopting double-deck elastic piece structure, and the flange that is provided with inclined-plane on shell fragment reaches with the arc connecting plate, effectively reduced shearing force and the moment of flexure of shell fragment to screw, improved the force-bearing situation of screw, extended working life, it has, and simple in structure, quality is light, the characteristics of stable connection.
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 shell fragment of analog-U shaped structure, the closed end of shell fragment has arc groove 4, and shell fragment comprises the lower shell fragment 2 that the upper shell fragment with the first through hole 12 setting up and down 1 reaches with the second through hole 22; Lower shell fragment 2 is horizontally disposed with, and its upper surface has the boss 21 with inclined-plane, and boss 21 has the second through hole 22; Upper shell fragment 1 is obliquely installed, the affixed arc connecting plate 3 of its upper surface, and connecting plate 3 has groove 32, and the middle part of groove 32 has third through-hole 31; The end of upper shell fragment 1 has the upwards afterbody 11 of bending.
when the present invention installs, the fastening screw trip bolt (not shown) screws in from the third through-hole 31 of arc connecting plate 3, and be connected with the connected piece (not shown) after passing successively the second through hole 22 of the first through hole 11 of shell fragment 1 and lower shell fragment 2, because upper shell fragment 1 descends shell fragment 2 to be obliquely installed and lower shell fragment 2 has boss 21 with inclined-plane relatively, when screw constantly screws, upper shell fragment 1 overlaps with the surface of boss 21 bottom surface of the rear upper shell fragment 1 of distortion downwards with the joint of lower shell fragment 2 around it, and because connecting plate 3 has groove 32, connecting plate 3 is along with the distortion downwards that screws gradually of screw, axis and the third through-hole 31 of final screw, the axis of the first through hole 11 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, and improved the steadiness that connects.
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)
1. the pretension shell fragment of a screw, it is characterized in that: the shell fragment that comprises analog-U shaped structure, the closed end of described shell fragment has arc groove (4), and described shell fragment comprises that the upper shell fragment with the first through hole (12) (1) setting up and down reaches the lower shell fragment (2) with the second through hole (22); Described lower shell fragment (2) is horizontally disposed with, and its upper surface has the boss (21) with inclined-plane, and described boss (21) has described the second through hole (22); Described upper shell fragment (1) is obliquely installed, the affixed arc connecting plate of its upper surface (3), and described connecting plate (3) has groove (32), and the middle part of described groove (32) has third through-hole (31); The end of described upper shell fragment (1) has the upwards afterbody (11) of bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103403086A CN103398075A (en) | 2013-08-05 | 2013-08-05 | Pre-tightening elastic piece of screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103403086A CN103398075A (en) | 2013-08-05 | 2013-08-05 | Pre-tightening elastic piece of screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103398075A true CN103398075A (en) | 2013-11-20 |
Family
ID=49561765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103403086A Pending CN103398075A (en) | 2013-08-05 | 2013-08-05 | Pre-tightening elastic piece of screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103398075A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2489903A1 (en) * | 1980-09-11 | 1982-03-12 | Sonofam | Spring clamp nut stamped from metal blank - is folded in half to define pair of spring legs with interposed inclined spring plate bearing against support plate |
| US4883397A (en) * | 1988-02-24 | 1989-11-28 | Rapid S.A. | U-shaped fastening clip device with resilient tongue member |
| CN1340136A (en) * | 1999-02-19 | 2002-03-13 | 拉皮德股份有限公司 | Device for assembling two panels or the like and formed by two co-operating parts |
| FR2899658B1 (en) * | 2006-04-10 | 2010-08-27 | Raymond A & Cie | CLAMPING DEVICE |
| CN201991909U (en) * | 2011-04-14 | 2011-09-28 | 宁波狮球通风机电有限公司 | Nut |
| CN202883643U (en) * | 2012-09-19 | 2013-04-17 | 莫德柱 | Quarter turn quick-lock type fastener buckle with pressed recess |
| CN203548515U (en) * | 2013-08-05 | 2014-04-16 | 无锡市张泾宇钢机械厂 | Screw preloading elastic sheet |
-
2013
- 2013-08-05 CN CN2013103403086A patent/CN103398075A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2489903A1 (en) * | 1980-09-11 | 1982-03-12 | Sonofam | Spring clamp nut stamped from metal blank - is folded in half to define pair of spring legs with interposed inclined spring plate bearing against support plate |
| US4883397A (en) * | 1988-02-24 | 1989-11-28 | Rapid S.A. | U-shaped fastening clip device with resilient tongue member |
| CN1340136A (en) * | 1999-02-19 | 2002-03-13 | 拉皮德股份有限公司 | Device for assembling two panels or the like and formed by two co-operating parts |
| FR2899658B1 (en) * | 2006-04-10 | 2010-08-27 | Raymond A & Cie | CLAMPING DEVICE |
| CN201991909U (en) * | 2011-04-14 | 2011-09-28 | 宁波狮球通风机电有限公司 | Nut |
| CN202883643U (en) * | 2012-09-19 | 2013-04-17 | 莫德柱 | Quarter turn quick-lock type fastener buckle with pressed recess |
| CN203548515U (en) * | 2013-08-05 | 2014-04-16 | 无锡市张泾宇钢机械厂 | Screw preloading elastic sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131120 |