CN111255796B - Nut anti-loosening structure - Google Patents
Nut anti-loosening structure Download PDFInfo
- Publication number
- CN111255796B CN111255796B CN202010256992.XA CN202010256992A CN111255796B CN 111255796 B CN111255796 B CN 111255796B CN 202010256992 A CN202010256992 A CN 202010256992A CN 111255796 B CN111255796 B CN 111255796B
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- China
- Prior art keywords
- nut
- pressing sheet
- clamping groove
- sheet
- loosening
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- 238000000034 method Methods 0.000 abstract description 4
- 239000003826 tablet Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007891 compressed tablet Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention provides a nut anti-loosening structure which comprises a nut and a screw rod, wherein a pressing sheet is arranged between the nut and a connecting piece, the screw rod penetrates through the pressing sheet and the connecting piece to be connected with the nut, a plurality of lug plates are arranged on the periphery of the pressing sheet, the lug plates are obliquely arranged towards the inner side of the pressing sheet, and the lug plates are elastically connected with the pressing sheet; a clamping groove is formed in the end part of the connecting piece, and the lug is arranged in the clamping groove; the end face of the pressing sheet is provided with a limiting elastic sheet; one end of the limiting elastic sheet is tilted and arranged towards the screwing direction of the nut; the nut end face is provided with a plurality of notches, and the limiting elastic sheets are arranged in the notches. The pressing sheet for preventing the nut from loosening has a simple structure, and can be manufactured in a large scale through a stamping process. Therefore, the nut mounting structure can be used for conveniently assembling and disassembling and preventing loosening and further improving the nut mounting efficiency.
Description
Technical Field
The invention relates to the field of machinery, in particular to a nut anti-loose structure.
Background
Nuts are indispensable parts in mechanical construction, and in some important connection structures, a check device or structure must be employed. The existing bolt anti-loosening method comprises three types, namely friction anti-loosening (convenient to assemble and disassemble, low in anti-loosening reliability), locking anti-loosening (complex to assemble and disassemble and high in anti-loosening reliability) and non-detachable anti-loosening (destructive anti-loosening and high in anti-loosening reliability), but the advantages of the three cannot be considered simultaneously in the using process. Therefore, in view of the above, a nut locking ring structure is devised.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the problem of the locking reliability of nut is low and the dismouting is complicated two compromises is solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the nut anti-loosening structure comprises a nut and a screw rod, wherein a pressing sheet is arranged between the nut and a connecting piece, the screw rod penetrates through the pressing sheet and the connecting piece to be connected with the nut, a plurality of lug plates are arranged on the periphery of the pressing sheet, the lug plates are obliquely arranged towards the inner side of the pressing sheet, and the lug plates are elastically connected with the pressing sheet; a clamping groove is formed in the end part of the connecting piece, and the lug is arranged in the clamping groove; the end face of the pressing sheet is provided with a limiting elastic sheet; one end of the limiting elastic sheet is tilted and arranged towards the screwing direction of the nut; the nut end face is provided with a plurality of notches, and the limiting elastic sheets are arranged in the notches.
Preferably, the lug is in an arc shape, and one side of the arc-shaped protrusion is arranged towards the clamping groove.
Preferably, the lug is a stamped V-shaped structure, the rib end of the V-shaped structure is arranged in the clamping groove, and the side end of the V-shaped structure is connected with the opening edge of the clamping groove.
The anti-loosening pressing sheet for the nut has the advantages that the structure is simple, and the anti-loosening pressing sheet can be manufactured in a large scale through a stamping process. Therefore, the nut mounting structure can be used for conveniently assembling and disassembling and preventing loosening and further improving the nut mounting efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a first state structure provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second state structure provided by the embodiment of the present invention;
FIG. 3 is a schematic perspective view of a tablet according to an embodiment of the present invention;
FIG. 4 is a bottom view of the structure of FIG. 3;
FIG. 5 is a schematic perspective view of a compressed tablet according to an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a nut according to an embodiment of the present invention;
in the figure: 100-pressing piece, 110-lug, 120-limiting elastic piece, 200-nut, 201-notch, 300-screw, 400-connecting piece and 401-clamping groove.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It is to be understood that these examples are for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
In one embodiment, (shown in fig. 1-6) a nut anti-loosening structure is provided, comprising a nut 200 and a screw 300, and a pressing sheet 100 is installed between the nut 200 and a connector 400 in order to prevent loosening of the nut and the screw during use. When the fixing piece is used, the screw rod 300 is connected with the fixing piece, and the screw rod 300 is matched with the screw rod through the nut 200 after passing through the connecting piece 400 and the pressing piece 100 to realize the fixed installation of the connecting piece 400 and the fixing piece. In order to prevent the tablet 100 from rotating, a plurality of tabs 110 are disposed around the periphery of the tablet 100, and the tabs 110 are disposed obliquely (as shown in fig. 3-4) toward the inside of the tablet 100, i.e., the tabs 110 are disposed obliquely toward the bottom of the tablet 100, such that the tabs 110 and the tablet 100 are disposed on different planes. Wherein the tab 110 is elastically connected to the wafer 100. When the nut 200 applies pressure on the top of the preform 100, the tabs 110 may be spread outward from the preform 100, even if the tabs 110 are approximately planar with the preform 100. In addition, a clamping groove 401 is formed at the end of the connecting member 400, the tab 110 can be placed in the clamping groove 401, and the tab 110 can move along the clamping groove 401 when being unfolded, so that the rotation of the pressing sheet 100 is limited by the matching of the tab 110 and the clamping groove 401, and a reverse thrust is applied to the nut 200 by the elasticity of the tab 110, so that the nut anti-loosening structure is facilitated.
In addition, a limiting elastic sheet 120 is arranged on the end surface of the pressing sheet 100; the limiting elastic sheet 120 is formed by stamping the pressing sheet 100, and one end of the limiting elastic sheet 120 is tilted and arranged towards the screwing direction of the nut 200, namely when the nut 200 is screwed rightwards, the tilted end of the limiting elastic sheet 120 is arranged towards the screwing direction; in addition, the end face of the nut 200 is provided with a plurality of notches 201, and the limiting elastic sheet 120 is arranged in the notches 201, so that the nut 200 can only rotate towards the screwing direction of the nut through the matching of the limiting elastic sheet 120 and the notches 201, but cannot rotate towards the unscrewing direction of the nut 200, and the reliability of the nut anti-loose structure is further enhanced.
When the nut 200 is disassembled, the end part of the lug 110 is upwards tilted to separate the lug 110 from the clamping groove 401, then the nut 200 is unscrewed, the pressing sheet 100 and the nut 200 synchronously rotate during preliminary screwing, and when the pressing sheet 100 can move up and down after screwing a certain pitch of the nut 200, the pressing sheet 100 is pressed down to directly screw the nut 200 to separate from the screw 300, so that the convenience in assembling and disassembling and the anti-loosening reliability can be considered during use, and the nut installation efficiency is further improved.
In use, (as shown in fig. 2 and 5) in order to better facilitate the downward pressing of the ear 110, the ear 110 is configured in an arc shape, and one side of the arc protrusion is disposed toward the slot 401. When the pressing sheet 100 is pressed by the nut 200, the arc-shaped lug 110 is slidably connected with the slot 401 in a tangential manner. Therefore, the connection resistance of the tab 110 and the slot 401 can be reduced, so that the nut 200 can be screwed more easily, and the compression stress of the tab 110 can be reduced, thereby preventing the tab 110 from being bent when the mounting position is not accurate. In addition, the end of the lug 110 is tilted after being pressed, so that the end of the lug 110 is tilted upwards when the nut 200 is disassembled, and the nut is further convenient to disassemble.
In order to facilitate the positioning and installation of the tab 110 and the slot 401 and reduce the installation gap between the tab 110 and the slot 401, the tab 110 is stamped into a V-shaped structure (as shown in fig. 2), the protruding edge of the V-shaped structure is disposed in the slot 401, and the side end of the V-shaped structure is connected to the opening edge of the slot 401, i.e., the two side ends of the V-shaped structure are positioned with the opening edge of the slot 401, and thus, the requirement on the accuracy of the slot 401 is greatly reduced, the processing of the slot 401 is facilitated, and the applicability of the tab 110 and the slot 401 is improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (1)
1. A nut anti-loose structure comprises a nut (200) and a screw (300), a pressing sheet (100) is installed between the nut (200) and a connecting piece (400), the screw (300) penetrates through the pressing sheet (100) and the connecting piece (400) to be connected with the nut (200), and the nut anti-loose structure is characterized in that:
a plurality of lugs (110) are arranged on the periphery of the pressing sheet (100), the lugs (110) are obliquely arranged towards the inner side of the pressing sheet (100), and the lugs (110) are elastically connected with the pressing sheet (100); a clamping groove (401) is formed in the end portion of the connecting piece (400), the lug (110) is arranged in the clamping groove (401), the lug (110) is in an arc shape, and one side of the arc-shaped protrusion faces the clamping groove (401);
the end face of the pressing sheet (100) is provided with a limiting elastic sheet (120); one end of the limiting elastic sheet (120) is tilted and is arranged towards the screwing direction of the nut (200); the end face of the nut (200) is provided with a plurality of notches (201), and the limiting elastic sheet (120) is arranged in the notches (201);
the lug (110) is of a stamped V-shaped structure, the convex edge end of the V-shaped structure is arranged in the clamping groove (401), and the side end of the V-shaped structure is connected with the opening edge of the clamping groove (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010256992.XA CN111255796B (en) | 2020-04-03 | 2020-04-03 | Nut anti-loosening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010256992.XA CN111255796B (en) | 2020-04-03 | 2020-04-03 | Nut anti-loosening structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111255796A CN111255796A (en) | 2020-06-09 |
| CN111255796B true CN111255796B (en) | 2021-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010256992.XA Active CN111255796B (en) | 2020-04-03 | 2020-04-03 | Nut anti-loosening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111255796B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114673682B (en) * | 2022-04-26 | 2023-07-21 | 江苏恒康机电有限公司 | Adjustable centrifugal ventilator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2392023Y (en) * | 1999-11-05 | 2000-08-16 | 何顺唐 | Loosen-proof and theft-proof screw nut pair |
| CN105508390A (en) * | 2016-01-18 | 2016-04-20 | 杭州斯泰新材料技术有限公司 | Fastening mechanism |
| WO2018061005A1 (en) * | 2016-09-29 | 2018-04-05 | Philip Bogrash | Fastener systems with overtightening and loosening prevention |
| CN108412876A (en) * | 2018-05-17 | 2018-08-17 | 蒋新民 | Loose-proof screw |
| CN110805607A (en) * | 2019-11-19 | 2020-02-18 | 鲁东大学 | Locking stopping reliable screw assembly |
-
2020
- 2020-04-03 CN CN202010256992.XA patent/CN111255796B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2392023Y (en) * | 1999-11-05 | 2000-08-16 | 何顺唐 | Loosen-proof and theft-proof screw nut pair |
| CN105508390A (en) * | 2016-01-18 | 2016-04-20 | 杭州斯泰新材料技术有限公司 | Fastening mechanism |
| WO2018061005A1 (en) * | 2016-09-29 | 2018-04-05 | Philip Bogrash | Fastener systems with overtightening and loosening prevention |
| CN108412876A (en) * | 2018-05-17 | 2018-08-17 | 蒋新民 | Loose-proof screw |
| CN110805607A (en) * | 2019-11-19 | 2020-02-18 | 鲁东大学 | Locking stopping reliable screw assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111255796A (en) | 2020-06-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211020 Address after: 215200 No. 169, liaobang Road, Jiangling street, Wujiang District, Suzhou City, Jiangsu Province Applicant after: Suzhou harmony Shanchuan Precision Hardware Co.,Ltd. Address before: 110038 Vanke Jinyu Huacheng mailroom, sitaizi, Huanggu District, Shenyang City, Liaoning Province Applicant before: Wang Chaohe |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |