CN203297293U - Anti-loosing gasket for threaded connection structure and threaded connection structure - Google Patents
Anti-loosing gasket for threaded connection structure and threaded connection structure Download PDFInfo
- Publication number
- CN203297293U CN203297293U CN2013203186997U CN201320318699U CN203297293U CN 203297293 U CN203297293 U CN 203297293U CN 2013203186997 U CN2013203186997 U CN 2013203186997U CN 201320318699 U CN201320318699 U CN 201320318699U CN 203297293 U CN203297293 U CN 203297293U
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- China
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- fastener
- shim body
- card
- connection structure
- check washer
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Abstract
The utility model discloses an anti-loosing gasket for a threaded connection structure and the threaded connection structure using the anti-loosing gasket. The anti-loosing gasket (2) is located between a threaded fastener (1) and a fastened element (3), and comprises a gasket body (20) and a through hole (21) formed in the gasket body (20). The gasket body (20) is provided with a first anti-rotation structure matched with the fastened element (3) and a second anti-rotation structure matched with the threaded fastener (1). By means of arrangement of the first anti-rotation structure and the second anti-rotation structure which are matched with the fastened element and the threaded fastener respectively, the anti-loosing gasket is connected with the threaded fastener and the fastened element in a matched mode at the same time in the threaded connection structure, and therefore the anti-loosing effect is achieved. The threaded connection structure using the anti-loosing gasket has better connection reliability.
Description
Technical field
The utility model relates to mechanical field, particularly, relates to a kind of check washer for screw connection structure and screw connection structure.
Background technique
Machinery industry is under the operating mode of heavy load, and is high especially for the locking requirement of fastener bolt, particularly, at the bolt of vibrations on ring portion, in case bolt looseness occurs, gently causes damage of components, heavy cause casualties.
In prior art, locking mode commonly used is between nut and pad, between nut and fastener or circle wedge shape projection and a wedge-shaped impression with matching be set between pad and fastener, make after nut or bolt tightening, the wedge shape projection can restraining bolt along the rotation of loosening direction.
But, in above-mentioned locking mode, the cooperation of wedge shape projection and wedge-shaped impression has just increased the resistive torque of loosening direction, can not play fully and prevent the effect of becoming flexible, make screw connection structure under the effect of strong vibrations or other alternate loads, can occur gradually loosening.
The model utility content
The purpose of this utility model is to provide a kind of check washer for screw connection structure, uses this check washer can obtain better anti-loosing effect.
To achieve these goals, the utility model provides a kind of check washer for screw connection structure, this check washer is between threaded fastener and fastener, described check washer comprises shim body and is arranged on the through hole on this shim body, wherein, on described shim body, be provided with the first rotation prevention structure that matches with described fastener and the second rotation prevention structure that matches with described threaded fastener.
Preferably, bump and/or the reentrant part of described the first rotation prevention structure for matching with fastener.
Preferably, described bump and/or the female section circumferentially being uniformly distributed along described shim body.
Preferably, on described shim body, be provided with described bump, and described bump comprises the card along circumferential arrangement that forms from the outward edge incision of described shim body, and the free end of this card extends towards described fastener from described shim body.
Preferably, described card comprises the first card and the second card, the free end of described the first card and described the second card is along circumferentially towards described fastener, extending on the contrary, and described the first card and described the second card circumferentially being alternately distributed along described shim body.
Preferably, on described shim body, be provided with described bump, described bump is the protruding part that is arranged on described shim body, and this protruding part extends towards described fastener from described shim body.
Preferably, described the second rotation prevention structure is projection and/or the recess that coordinates with described threaded fastener.
Preferably, on described shim body, be provided with a plurality of described projections, these a plurality of described projections circumferentially being uniformly distributed along described shim body.
Preferably, described projection is wedge shape.
Another purpose of the present utility model is to provide a kind of screw connection structure, and the connection in this screw connection structure between each parts is more firm.
In order to realize above-mentioned another purpose, the utility model provides a kind of screw connection structure, this screw connection structure comprise threaded fastener, fastener and be arranged on threaded fastener and fastener between pad, wherein, described pad is the above-mentioned check washer for screw connection structure.
Check washer of the present utility model is by arranging the first rotation prevention structure and the second rotation prevention structure that matches with threaded fastener and fastener respectively, make check washer with threaded fastener and fastener, be connected simultaneously in screw connection structure, thereby reach locking effect.Adopt the screw connection structure of this check washer to have higher connection reliability.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
The accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms the part of specification, with following embodiment one, is used from explanation the utility model, but does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of screw connection structure of the present utility model;
Fig. 2 is the structural representation of a kind of mode of execution of check washer of the present utility model;
Fig. 3 a is the structural representation of the another kind of mode of execution of check washer of the present utility model, and what wherein show is the surface that the first rotation prevention structure is set;
Fig. 3 b is the structural representation of the another kind of mode of execution of check washer of the present utility model, and what wherein show is the surface that the second rotation prevention structure is set.
Description of reference numerals
1 threaded fastener 2 check washers
3 fastener 20 shim body
21 through hole 22 cards
23 protruding part 24 projections
22a first card 22b the second card
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that do opposite explanation, " inside and outside " refers to inside and outside with respect to the parts profile.
Referring to Fig. 1 to Fig. 3 b, the utility model relates to a kind of check washer for screw connection structure, and this check washer 2 is usually located between threaded fastener 1 and fastener 3.Wherein, described threaded fastener 1 mainly refer to can check washer 2 axially on check washer 2 is applied to the parts of power, for example it can be bolt or screw (head that is mainly bolt or screw carries out applying of power), can be also the nut be used to tightening.Identical with pad of the prior art, check washer 2 mainly includes shim body 20 and is arranged on the through hole 21 on this shim body 20, and this through hole 21 passes for bolt etc., and is fastening to realize.
Be different from prior art, loosening for preventing that above-mentioned threaded fastener 1 from occurring, the utility model is provided with the first rotation prevention structure that matches with fastener 3 and the second rotation prevention structure that matches with threaded fastener 1 on shim body 20.Be appreciated that because shim body 20 matches with fastener 3 and threaded fastener 1 simultaneously, make threaded fastener 1 link together by check washer 2 and fastener 3, and then play the effect that prevents that threaded fastener 1 is loosening.Even under the effect of strong vibrations or other alternate loads, also can guarantee well the connection between each parts, reduce the damage of component.
Wherein it should be noted that, described the first rotation prevention structure and the second rotation prevention structure can be to be fixed in several ways on check washer, as fixed by welding manner, and for example can form etc. by integrally formed mode.
In embodiment, the first rotation prevention structure can be arranged on bump or the reentrant part that matches with fastener 3 on shim body 20, or the bump and the reentrant part that arrange simultaneously.When on shim body 20, bump being set, on fastener 3, should arrange accordingly be used to the recessed connected structure that holds this bump (such as counterbore etc.), to facilitate cooperation; On the contrary, when on shim body 20, reentrant part being set, on fastener 3, should arrange corresponding be used to inserting the outstanding connected structure of this reentrant part, to facilitate cooperation.
Referring to Fig. 1, Fig. 2, Fig. 3 a and Fig. 3 b, no matter the first rotation prevention structure is bump or the reentrant part that arranges separately, still the bump and the reentrant part that arrange simultaneously, preferably make the first rotation prevention structure along circumferentially being uniformly distributed of shim body 20, so that shim body 20 is at the uniform stressed that makes progress in week.
Be appreciated that above-mentioned bump can have various shape.For example, in mode of execution illustrated in figures 1 and 2, the bump that arranges on shim body 20 comprises the card along circumferential arrangement 22 that forms from the outward edge incision of shim body 20, and the free end of this card 22 extends towards fastener 3 from shim body 20.In Fig. 1 and Fig. 2, card 22 is to form by on the outward edge from shim body 20, in the mode of " L " shape, cutting and bend.In some other mode of execution, card 22 also can the mode with " ∩ " shape form along circumferentially excising on shim body 20.The generation type of card 22 can comprise multiple, but is not limited to above-mentioned two kinds of modes.
Further preferably, above-mentioned card 22 can also comprise the first card 22a and the second card 22b, and the free end edge of the first card 22a and the second card 22b is circumferentially extended towards fastener 3 on the contrary.Wherein " free end is along circumferentially towards fastener 3, extending on the contrary " refers to that at first the free end of the first card 22a and the second card 22b extends towards fastener 3, secondly, the first card 22a and the second card 22b reason shim body 20 form self, thereby will upwards circularly extend in week.By Fig. 1, can obviously be found out, the first card 22a extends along the counter clockwise direction in figure, and the second card 22b extends along the clockwise direction in figure.When the first card 22a and the second card 22b coordinate with fastener 3 respectively, in week, upwards will produce opposite power, in order to prevent pad 2 facing one direction (clockwise or counterclockwise) loosening.
More preferably, the first card 22a and the second card 22b circumferentially being alternately distributed along shim body 20.As shown in Figure 1, in this mode of execution, the first card 22a and the second card 22b respectively arrange two, and because be alternately distributed, and make footpath that the card of two equidirectionals is distributed in respectively shim body 20 upwards, to produce opposite moment, in order to locking better.
Referring to Fig. 3 a and Fig. 3 b, in another embodiment, the bump that arranges on shim body 20 can be for being arranged on the protruding part 23 on shim body 20, and this protruding part 23 extends towards fastener 3 from shim body 20.According to different actual demand, this protruding part 23 can be cylindrical or the various shape such as hexahedron cylindricality.
Identical with the design concept of the first rotation prevention structure, the second rotation prevention structure on check washer 2 can be projection 24 and/or the recess that coordinates with threaded fastener 1, namely the second rotation prevention structure can, for projection 24 or the recess that arranges separately, can be both also projection 24 and the recess that arranges simultaneously.Be appreciated that due to the second rotation prevention structure for threaded fastener 1, coordinating, therefore, the second rotation prevention structure diametrically should be between through hole 21 and the first rotation prevention structure, namely the second rotation prevention structure and the first rotation prevention structure lay respectively in different diameter ranges.And in Fig. 3 a and the described mode of execution of Fig. 3 b, because protruding part 23 matches with fastener 3, projection 24 and the head of threaded fastener 1(nut or bolt) match, thereby protruding part 23 and projection 24 protrusion in the opposite direction on two surfaces of shim body 20 respectively.
In mode of execution shown in Figure 2, on shim body 20, be provided with a plurality of protrudingly 24, this is a plurality of protruding 24 along circumferentially being uniformly distributed and protruding towards threaded fastener 1 of shim body 20, so that form and coordinate equably with threaded fastener 1.Preferably, projection 24 can be wedge shape well known in the art, but is not limited to wedge shape.When on shim body 20, the projection 24 of wedge shape being set, threaded fastener 1(bolt head or nut) on correspondingly form the shrinkage pool of wedge shape.Under this structure, between shim body 20 and threaded fastener 1, will form the engagement of ratchet form, thereby produce resistive torque so that between threaded fastener 1 and check washer 2 to be connected power larger, thereby with the first rotation prevention structure, combine better, loosening to prevent threaded fastener 1.
According to above-described check washer, the utility model can relate to a kind of screw connection structure, this screw connection structure mainly comprise threaded fastener 1, fastener 3 and be arranged on threaded fastener 1 and fastener 3 between pad, be different from existing screw connection structure, pad wherein is the above-mentioned check washer for screw connection structure.
By adopting above-mentioned check washer, in screw connection structure, between each parts, connect ground more firm, thereby screw connection structure still can keep connecting well under the effect of sharp pounding or some alternate loads, makes the device of this screw connection structure of application or equipment etc. have relatively high reliability.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, between various mode of execution of the present utility model, also can carry out combination in any, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. check washer for screw connection structure, this check washer (2) is positioned between threaded fastener (1) and fastener (3), described check washer (2) comprises shim body (20) and is arranged on the through hole (21) on this shim body (20), it is characterized in that, on described shim body (20), be provided with the first rotation prevention structure that matches with described fastener (3) and the second rotation prevention structure that matches with described threaded fastener (1).
2. check washer according to claim 1, is characterized in that, bump and/or the reentrant part of described the first rotation prevention structure for matching with fastener (3).
3. check washer according to claim 2, is characterized in that, described bump and/or the female section circumferentially being uniformly distributed along described shim body (20).
4. according to claim 2 or 3 described check washers, it is characterized in that, described shim body is provided with described bump on (20), and described bump comprises the card along circumferential arrangement (22) that forms from the outward edge incision of described shim body (20), and the free end of this card (22) extends towards described fastener (3) from described shim body (20).
5. check washer according to claim 4, it is characterized in that, described card (22) comprises the first card (22a) and the second card (22b), the free end of described the first card (22a) and described the second card (22b) is along circumferentially towards described fastener, extending on the contrary, and described the first card (22a) and described the second card (22b) circumferentially being alternately distributed along described shim body (20).
6. according to claim 2 or 3 described check washers, it is characterized in that, described shim body is provided with described bump on (20), described bump is for to be arranged on the protruding part (23) on described shim body (20), and this protruding part (23) extends towards described fastener (3) from described shim body (20).
7. check washer according to claim 1, is characterized in that, described the second rotation prevention structure is projection (24) and/or the recess that coordinates with described threaded fastener (1).
8. check washer according to claim 7, is characterized in that, on described shim body (20), is provided with a plurality of described projections (24), these a plurality of described projections (24) circumferentially being uniformly distributed along described shim body (20).
9. according to claim 7 or 8 described check washers, is characterized in that, described projection (24) is wedge shape.
10. screw connection structure, this screw connection structure comprise threaded fastener (1), fastener (3) and be arranged on threaded fastener (1) and fastener (3) between pad, it is characterized in that, described pad is the described check washer for screw connection structure of any one (2) in claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203186997U CN203297293U (en) | 2013-06-04 | 2013-06-04 | Anti-loosing gasket for threaded connection structure and threaded connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203186997U CN203297293U (en) | 2013-06-04 | 2013-06-04 | Anti-loosing gasket for threaded connection structure and threaded connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297293U true CN203297293U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203186997U Expired - Fee Related CN203297293U (en) | 2013-06-04 | 2013-06-04 | Anti-loosing gasket for threaded connection structure and threaded connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297293U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461557A (en) * | 2017-08-11 | 2017-12-12 | 宁波天生密封件有限公司 | sealing and connecting device |
| CN108269447A (en) * | 2016-12-30 | 2018-07-10 | 江苏核电有限公司 | A kind of reactor protection tube assembly bourdon tube replaces simulation training platform |
| CN110307236A (en) * | 2019-07-15 | 2019-10-08 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of Anti-looseness bolt device |
| CN114278659A (en) * | 2018-04-09 | 2022-04-05 | 北京星际荣耀空间科技股份有限公司 | Screw thread locking structure |
| CN114278660A (en) * | 2022-01-04 | 2022-04-05 | 龚作钰 | Set for locking bolt subassembly that bullet tongue rigidity control was dismantled |
| CN114704615A (en) * | 2022-04-06 | 2022-07-05 | 中国第一汽车股份有限公司 | Creep-resistant transmission shell and assembly process |
-
2013
- 2013-06-04 CN CN2013203186997U patent/CN203297293U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269447A (en) * | 2016-12-30 | 2018-07-10 | 江苏核电有限公司 | A kind of reactor protection tube assembly bourdon tube replaces simulation training platform |
| CN107461557A (en) * | 2017-08-11 | 2017-12-12 | 宁波天生密封件有限公司 | sealing and connecting device |
| CN114278659A (en) * | 2018-04-09 | 2022-04-05 | 北京星际荣耀空间科技股份有限公司 | Screw thread locking structure |
| CN110307236A (en) * | 2019-07-15 | 2019-10-08 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of Anti-looseness bolt device |
| CN114278660A (en) * | 2022-01-04 | 2022-04-05 | 龚作钰 | Set for locking bolt subassembly that bullet tongue rigidity control was dismantled |
| CN114704615A (en) * | 2022-04-06 | 2022-07-05 | 中国第一汽车股份有限公司 | Creep-resistant transmission shell and assembly process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20160604 |
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| CF01 | Termination of patent right due to non-payment of annual fee |