CN109139669A - A kind of check washer - Google Patents

A kind of check washer Download PDF

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Publication number
CN109139669A
CN109139669A CN201811261283.XA CN201811261283A CN109139669A CN 109139669 A CN109139669 A CN 109139669A CN 201811261283 A CN201811261283 A CN 201811261283A CN 109139669 A CN109139669 A CN 109139669A
Authority
CN
China
Prior art keywords
sawtooth
ring body
face
check washer
circumferential direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811261283.XA
Other languages
Chinese (zh)
Inventor
王梁梁
葛万勇
王清纯
李昂
牛慧峰
吕后仓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing CRRC Heavy Industry Mechanics Co Ltd
Original Assignee
Beijing CRRC Heavy Industry Mechanics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing CRRC Heavy Industry Mechanics Co Ltd filed Critical Beijing CRRC Heavy Industry Mechanics Co Ltd
Priority to CN201811261283.XA priority Critical patent/CN109139669A/en
Publication of CN109139669A publication Critical patent/CN109139669A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/282Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

This application discloses a kind of check washer, including ring body, an at least end face for the ring body is peripherally disposed several sawtooth.After the end face of check washer and nut and/or connected piece tighten contact, due to having sawtooth at least one end face, sawtooth can prevent nut and/or connected piece from rotating backward with respect to check washer, to improve anti-loosing effect.

Description

A kind of check washer
Technical field
The present invention relates to gasket technical field, in particular to a kind of check washer.
Background technique
Gasket is common machine components, for being used cooperatively with threaded connector, to improve the connection of threaded connector Fastness.
Existing gasket is a kind of cirque structure, and threaded connector is passed through to the centre bore of gasket, and threaded connector is twisted It is next, it is abutted respectively with threaded connector and connected piece by the upper and lower end face of gasket.But in actual use, by In being vibrated, gasket can not play preferable anti-loosing effect.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of check washer, to improve its anti-loosing effect.
In order to achieve the above objectives, the present invention the following technical schemes are provided:
A kind of check washer, including ring body, an at least end face for the ring body is peripherally disposed several sawtooth.
Preferably, in above-mentioned check washer, the end face for contacting with nut of the ring body is front, it is described just Sawtooth on face is positive sawtooth, and along the positive clockwise circle circumferential direction, the upstream face of each positive sawtooth is by tooth root To the acclivitous inclined-plane of tooth top.
Preferably, in above-mentioned check washer, the downstream face of each positive sawtooth is perpendicular to described positive perpendicular It faces directly or for from tooth root to the acclivitous inclined-plane of tooth top.
Preferably, in above-mentioned check washer, the end face for contacting with connected piece of the ring body is the back side, institute The sawtooth on the back side is stated as reverse sawtooth, the clockwise circle circumferential direction along the back side, the upstream face of each reverse sawtooth is served as reasons Tooth root is to the acclivitous inclined-plane of tooth top.
Preferably, in above-mentioned check washer, the downstream face of each reverse sawtooth is perpendicular to the perpendicular of the back side It faces directly or for from tooth root to the acclivitous inclined-plane of tooth top.
Preferably, in above-mentioned check washer, the sawtooth is circumferentially continuously to be arranged on the end face of the ring body Continuous sawtooth or be the discrete sawtooth on the along the circumferential direction discrete end face for being arranged in the ring body.
Preferably, in above-mentioned check washer, the sawtooth end face evenly distributed in the circumferential direction in the ring body On.
Preferably, in above-mentioned check washer, the taper ring body of the ring body.
Preferably, in above-mentioned check washer, the inner ring of the ring body is provided with one or more notches.
Preferably, in above-mentioned check washer, the inner ring of the ring body is after the taper ring body flattens for embracing The holding anchor ring of tight threaded connector.
Compared with prior art, the beneficial effects of the present invention are:
Check washer provided by the invention includes ring body, and an at least end face for ring body is peripherally disposed several saws Tooth.After the end face of check washer and nut and/or connected piece tighten contact, due to having sawtooth at least one end face, Therefore, sawtooth can prevent nut and/or connected piece from rotating backward with respect to check washer, to improve anti-loosing effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of positive structure schematic of check washer provided in an embodiment of the present invention;
Fig. 2 is a kind of structure schematic diagram of check washer provided in an embodiment of the present invention;
Fig. 3 is a kind of schematic cross-section of check washer provided in an embodiment of the present invention;
Fig. 4 is a kind of operation schematic diagram of check washer provided in an embodiment of the present invention.
Wherein, 1 be ring body, 11 be positive sawtooth, 12 be reverse sawtooth, 13 be notch, 14 be hold tightly anchor ring, 2 be bolt, 3 be Nut, 4 are connected piece.
Specific embodiment
Core of the invention improves anti-loosing effect there is provided a kind of check washer.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-Fig. 4, the embodiment of the invention provides a kind of check washer, including ring body 1, ring body 1 with nut 3 The end face of contact is front, and the end face of ring body 1 contacted with connected piece 4 is the back side, and an at least end face for ring body 1 is circumferentially square To several sawtooth are provided with, i.e. the front and/or the back side of ring body 1 are provided with sawtooth, and sawtooth is triangular structure.
After the end face of check washer and nut 3 and/or connected piece 4 tighten contact, due to having at least one end face There is sawtooth, therefore, sawtooth can prevent nut 3 and/or connected piece 4 from rotating backward with respect to check washer, to improve anti- Loose effect.
Further, in the present embodiment, the sawtooth on the front of ring body 1 is positive sawtooth 11, is view with the front of ring body 1 Angle, the shape of positive sawtooth 11 as shown in Figure 1, specifically: along positive clockwise circle circumferential direction, each positive sawtooth 11 successively by Upstream face and downstream face are formed by connecting, wherein along positive clockwise circle circumferential direction, upstream face is from tooth root to tooth top to updip Oblique inclined-plane, so set, upstream face will not be to nut 3 when nut 3 is rotated clockwise with respect to the front of check washer and tightened Rotation cause to hinder.
Further, in the present embodiment, along positive clockwise circle circumferential direction, the downstream face of each positive sawtooth 11 is Perpendicular to positive vertical plane, or along positive clockwise circle circumferential direction, downstream face is acclivitous from tooth root to tooth top Inclined-plane.So set, when nut 3 rotates counterclockwise loosening with respect to check washer, positive the rotating counterclockwise to nut 3 of sawtooth 11 It is hindered, to improve the anti-loosing effect of check washer.
Similarly, the sawtooth on the back side of ring body 1 is reverse sawtooth 12, using the back side of ring body 1 as visual angle, such as Fig. 2 and Fig. 3 institute Show, the shape of reverse sawtooth 12 specifically: the clockwise circle circumferential direction along the back side, reverse sawtooth 12 is equally successively by upstream face and downstream Face is formed by connecting, wherein the clockwise circle circumferential direction along the back side, the upstream face of each reverse sawtooth 12 are upward from tooth root to tooth top Inclined inclined-plane.So set, upstream face will not when the back side of check washer rotates clockwise with respect to connected piece 4 and tightens The rotation of check washer is caused to hinder.
Further, in the present embodiment, along the clockwise circle circumferential direction at the back side, the downstream face of each reverse sawtooth 12 is Perpendicular to the vertical plane at the back side, alternatively, the clockwise circle circumferential direction along the back side, downstream face is acclivitous from tooth root to tooth top Inclined-plane.So set, reverse sawtooth 12 is to the inverse of check washer when check washer rotates counterclockwise loosening with respect to connected piece 4 Hour hands rotation is hindered, to improve the anti-loosing effect of check washer.
In the present embodiment, sawtooth is the continuous sawtooth being circumferentially continuously arranged on the end face of ring body 1 or is circumferentially Discrete sawtooth on the discrete end face for being arranged in ring body 1 in direction.Sawtooth in Fig. 1 and Fig. 2 is that continuous sawtooth certainly can also Several sawtooth are arranged every a distance on end face, as long as can satisfy locking requirement.
Further, in the present embodiment, sawtooth is evenly distributed in the circumferential direction on the end face of ring body 1, is prevented with improving The uniformity of loose effect.
As shown in figure 3, in the present embodiment, the taper ring body of ring body 1, i.e. ring body 1 are not smooth flat ring body, but Center protrudes from the tapered annular structure at edge.So set, after taper ring body is clamped by nut 3 and connected piece 4 and flattened, Flexible deformation occurs for taper ring body, applies axial force to nut 3, increases the frictional force between nut 3 and bolt 2, into One step improves the anti-loosing effect of nut 3.
Further, in the present embodiment, the inner ring of ring body 1 is provided with one or more notches 13, due to taper ring body After being driven plain, the inner ring extrusion of taper ring body, by setting notch 13 so that inner ring deforms after squeezing into notch 13, To reduce stress concentration, prevent taper ring body from tearing.
Further, in the present embodiment, the inner ring of ring body 1 is to be threadedly coupled after taper ring body flattens for holding tightly The holding anchor ring 14 of part.Since taper ring body is after pressing, the inner ring of ring body 1 can extend radially inward, using the principle, close The diameter of reason setting inner ring, after flattening ring body 1, inner ring can be held tightly on bolt 2 as anchor ring 14 is held tightly, further to mention High relaxation effect.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (10)

1. a kind of check washer, including ring body (1), which is characterized in that an at least end face for the ring body (1) is along the circumferential direction set It is equipped with several sawtooth.
2. check washer according to claim 1, which is characterized in that the ring body (1) for contacting with nut (3) End face be front, it is described front on sawtooth be positive sawtooth (11), along the positive clockwise circle circumferential direction, it is each it is described just The upstream face of sawtooth (11) is from tooth root to the acclivitous inclined-plane of tooth top.
3. check washer according to claim 2, which is characterized in that the downstream face of each positive sawtooth (11) is vertical In the positive vertical plane or for from tooth root to the acclivitous inclined-plane of tooth top.
4. check washer according to claim 1 or 2, which is characterized in that the ring body (1) be used for and connected piece (4) end face contacted is the back side, and the sawtooth on the back side is reverse sawtooth (12), the clockwise circle circumferential direction along the back side, The upstream face of each reverse sawtooth (12) is from tooth root to the acclivitous inclined-plane of tooth top.
5. check washer according to claim 4, which is characterized in that the downstream face of each reverse sawtooth (12) is vertical In the vertical plane at the back side or for from tooth root to the acclivitous inclined-plane of tooth top.
6. check washer according to claim 1, which is characterized in that the sawtooth is circumferentially continuously to be arranged in the ring body (1) continuous sawtooth on end face is the discrete sawtooth on the along the circumferential direction discrete end face for being arranged in the ring body (1).
7. check washer according to claim 6, which is characterized in that the sawtooth is evenly distributed in the circumferential direction in described On the end face of ring body (1).
8. -3, the described in any item check washers of 6-7 according to claim 1, which is characterized in that the conical ring of the ring body (1) Body.
9. check washer according to claim 8, which is characterized in that the inner ring of the ring body (1) is provided with one or more A notch (13).
10. check washer according to claim 9, which is characterized in that the inner ring of the ring body (1) is when the conical ring Body is used to hold tightly the holding anchor ring (14) of threaded connector after flattening.
CN201811261283.XA 2018-10-26 2018-10-26 A kind of check washer Pending CN109139669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811261283.XA CN109139669A (en) 2018-10-26 2018-10-26 A kind of check washer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811261283.XA CN109139669A (en) 2018-10-26 2018-10-26 A kind of check washer

Publications (1)

Publication Number Publication Date
CN109139669A true CN109139669A (en) 2019-01-04

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Family Applications (1)

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CN201811261283.XA Pending CN109139669A (en) 2018-10-26 2018-10-26 A kind of check washer

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112628273A (en) * 2020-12-04 2021-04-09 江苏远兴集团建设有限公司 Anti-loosening mechanism
CN113309777A (en) * 2020-11-27 2021-08-27 浙江斯泰新材料科技股份有限公司 Fastener with closed annular shock-absorbing locking ring

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980043346U (en) * 1996-12-24 1998-09-25 김종진 Loosen Washer Member
CN2733064Y (en) * 2004-11-02 2005-10-12 孙建军 Loose proof screwed connection assembly
CN202991792U (en) * 2012-12-24 2013-06-12 福建省晋江市励精汽配有限公司 Lock washer
CN104179779A (en) * 2013-05-21 2014-12-03 完美动力科技有限公司 Fastening combination part
CN106321602A (en) * 2016-07-07 2017-01-11 中国第汽车股份有限公司 Lock washer
CN106382297A (en) * 2016-11-29 2017-02-08 安徽江淮汽车集团股份有限公司 Lock bolt
CN108547850A (en) * 2018-06-04 2018-09-18 杨小华 Check washer and its screw with the check washer
CN207961231U (en) * 2017-12-26 2018-10-12 广东史特牢紧扣系统有限公司 A kind of fastener constructions
CN209083786U (en) * 2018-10-26 2019-07-09 北京中车重工机械有限公司 A kind of check washer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980043346U (en) * 1996-12-24 1998-09-25 김종진 Loosen Washer Member
CN2733064Y (en) * 2004-11-02 2005-10-12 孙建军 Loose proof screwed connection assembly
CN202991792U (en) * 2012-12-24 2013-06-12 福建省晋江市励精汽配有限公司 Lock washer
CN104179779A (en) * 2013-05-21 2014-12-03 完美动力科技有限公司 Fastening combination part
CN106321602A (en) * 2016-07-07 2017-01-11 中国第汽车股份有限公司 Lock washer
CN106382297A (en) * 2016-11-29 2017-02-08 安徽江淮汽车集团股份有限公司 Lock bolt
CN207961231U (en) * 2017-12-26 2018-10-12 广东史特牢紧扣系统有限公司 A kind of fastener constructions
CN108547850A (en) * 2018-06-04 2018-09-18 杨小华 Check washer and its screw with the check washer
CN209083786U (en) * 2018-10-26 2019-07-09 北京中车重工机械有限公司 A kind of check washer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113309777A (en) * 2020-11-27 2021-08-27 浙江斯泰新材料科技股份有限公司 Fastener with closed annular shock-absorbing locking ring
CN113309777B (en) * 2020-11-27 2023-09-01 浙江斯泰新材料科技股份有限公司 Fastener with closed annular shock absorbing locking ring
CN112628273A (en) * 2020-12-04 2021-04-09 江苏远兴集团建设有限公司 Anti-loosening mechanism

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