CN213331991U - Double-nut anti-loosening structure - Google Patents
Double-nut anti-loosening structure Download PDFInfo
- Publication number
- CN213331991U CN213331991U CN202021036003.8U CN202021036003U CN213331991U CN 213331991 U CN213331991 U CN 213331991U CN 202021036003 U CN202021036003 U CN 202021036003U CN 213331991 U CN213331991 U CN 213331991U
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- Prior art keywords
- nut
- handed nut
- handed
- gasket
- bolt
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- Expired - Fee Related
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- 230000002265 prevention Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 244000098674 Pinus cembroides Species 0.000 description 1
- 235000005013 Pinus cembroides Nutrition 0.000 description 1
- 235000008591 Pinus cembroides var edulis Nutrition 0.000 description 1
- 235000015593 Pinus monophylla Nutrition 0.000 description 1
- 235000015594 Pinus parryana Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a two nut anti loosening structure, the screw comprises a bolt, install left-handed nut, third gasket and right-handed nut on the bolt, the third gasket is located between left-handed nut and the right-handed nut, left-handed nut comprises nut main part and protruding structure, protruding structure sets up on nut main part top, right-handed nut bottom be provided with protruding structure complex indent structure, the third gasket sets up to the spring spacer, left-handed nut screw hole has been seted up on the left-handed nut, set up the right-handed nut screw hole that corresponds with left-handed nut screw hole on the right-handed nut, connect through fastening bolt between left-handed nut and the right-handed nut. The utility model can improve the anti-loosening performance of the nut by arranging the left-handed nut and the right-handed nut; through be provided with protruding structure on the left-handed nut, and set up the spring shim between left-handed nut and right-handed nut to can further improve the locking performance of nut.
Description
Technical Field
The utility model relates to a nut locking technical field specifically is a double nut anti loosening structure.
Background
The anti-loosening problem of the screw thread is generated along with the generation of a screw thread coupling structure, and anti-loosening measures are various, wherein double-nut anti-loosening is a commonly used anti-loosening structure of the screw thread. The chinese utility model patent "combined type auto-lock screw rod" (patent number ZL95240473.7) discloses a compound screw thread, as shown in figure 1, this kind of compound screw thread with two kinds of opposite screw thread combinations of turning to on same screw rod 2, with two opposite nuts of turning to be fastening nut 4 simultaneously with locknut 3 revolve the closure on same screw rod 2, utilize the reverse opposite vertex-to-vertex principle of two nuts to prevent that the nut pine from taking off. The two-way thread opposite-top interlocking principle adopted by the anti-loosening method is as follows: under the conditions of vibration and impact, the fastening nut has the tendency of loosening, but the loosening direction of the fastening nut is the tightening direction of the locknut, and the tightening of the locknut just stops the loosening of the fastening nut, so that the purpose of preventing the loosening of the fastening nut is achieved.
The anti-loosening performance of the structure is poor, and the use is not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two nut locking structure to solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a two nut anti loosening structure, includes the bolt, install left-handed nut, third gasket and right-handed nut on the bolt, the third gasket is located between left-handed nut and the right-handed nut, left-handed nut comprises nut main part and protruding structure, protruding structure sets up on nut main part top, right-handed nut bottom is provided with protruding structure complex indent structure, the third gasket sets up to the spring shim, left-handed nut screw hole has been seted up on the left-handed nut, set up the right-handed nut screw hole that corresponds with left-handed nut screw hole on the right-handed nut, connect through fastening bolt between left-handed nut and the right-handed nut.
Preferably, the number of the left-handed nut threaded holes is the same as that of the right-handed nut threaded holes, and the number of the left-handed nut threaded holes is 2-6.
Preferably, the bolt is provided with a first gasket and a second gasket, and the first gasket and the second gasket are positioned on two sides of the fastened piece.
Preferably, the first gasket and the second gasket are provided in a rubber structure or a metal structure.
Preferably, the shape of the convex structure is a circular truncated cone, and the center line of the convex structure is not on the same straight line with the center line of the nut body.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the anti-loosening performance of the nut can be improved by arranging the left-handed nut and the right-handed nut; the left-handed nut is provided with the convex structure, and the spring gasket is arranged between the left-handed nut and the right-handed nut, so that the anti-loosening performance of the nut can be further improved;
2. through connecting the left-handed nut and the right-handed nut through the fastening bolt, the left-handed nut and the right-handed nut are further prevented from being separated, and therefore looseness prevention of the nuts is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the left-handed nut of the present invention.
In the figure: 1. a first gasket; 2. a second gasket; 3. a left-handed nut; 4. a third gasket; 5. right-hand turning of the nut; 6. a bolt; 301. a nut body; 302. a raised structure; 303. and a threaded hole of the left-handed nut.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 and 2, in an embodiment of the present invention, a double nut anti-loosening structure includes a bolt 6, a left-handed nut 3, a third gasket 4 and a right-handed nut 5 are installed on the bolt 6, the third gasket 4 is located between the left-handed nut 3 and the right-handed nut 5, the left-handed nut 3 is composed of a nut main body 301 and a protrusion structure 302, the protrusion structure 302 is disposed at the top end of the nut main body 301, a concave structure matched with the protrusion structure 302 is disposed at the bottom end of the right-handed nut 5, the third gasket 4 is a spring gasket, a left-handed nut threaded hole 303 is disposed on the left-handed nut 3, a right-handed nut threaded hole corresponding to the left-handed nut threaded hole 303 is disposed on the right-handed nut 5, the left-handed nut 3 and the right-handed nut 5 are connected by a fastening bolt, the left-handed nut threaded hole 303 and the right, the number of the left-handed nut threaded holes 303 and the number of the right-handed nut threaded holes are 2-6, the bolt 6 is provided with a first gasket 1 and a second gasket 2, the first gasket 1 and the second gasket 2 are positioned at two sides of a fastened piece, the first gasket 1 and the second gasket 2 are arranged to be of rubber structures or metal structures, the shape of the convex structure 302 is arranged to be a circular truncated cone shape, and the center line of the convex structure 302 and the center line of the nut main body 301 are not on the same straight line; the anti-loosening performance of the nut can be improved by arranging the left-handed nut 3 and the right-handed nut 4; the anti-loosening performance of the nut can be further improved by arranging the convex structure 302 on the left-handed nut 3 and arranging the spring gasket between the left-handed nut 3 and the right-handed nut 4; through connecting the left-handed nut 3 and the right-handed nut 4 through the fastening bolt, the left-handed nut 3 and the right-handed nut 4 are further prevented from being separated, and therefore looseness prevention of the nuts is avoided.
The utility model discloses a theory of operation is: the anti-loosening performance of the nut can be improved by arranging the left-handed nut 3 and the right-handed nut 4; the anti-loosening performance of the nut can be further improved by arranging the convex structure 302 on the left-handed nut 3 and arranging the spring gasket between the left-handed nut 3 and the right-handed nut 4; through connecting the left-handed nut 3 and the right-handed nut 4 through the fastening bolt, the left-handed nut 3 and the right-handed nut 4 are further prevented from being separated, and therefore looseness prevention of the nuts is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a two nut locking structures, includes bolt (6), its characterized in that: install left-handed nut (3), third gasket (4) and right-handed nut (5) on bolt (6), third gasket (4) are located between left-handed nut (3) and right-handed nut (5), left-handed nut (3) comprises nut main part (301) and protruding structure (302), protruding structure (302) set up on nut main part (301) top, right-handed nut (5) bottom is provided with the structure of protruding complex indent (302), third gasket (4) set up to the spring shim, left-handed nut screw hole (303) have been seted up on left-handed nut (3), the right-handed nut screw hole that corresponds with left-handed nut screw hole (303) has been seted up on right-handed nut (5), connect through fastening bolt between left-handed nut (3) and right-handed nut (5).
2. A double nut loosening prevention structure as defined in claim 1, wherein: the number of the left-handed nut threaded holes (303) is the same as that of the right-handed nut threaded holes, and 2-6 left-handed nut threaded holes (303) and 2-6 right-handed nut threaded holes are formed.
3. A double nut loosening prevention structure as defined in claim 1, wherein: install first gasket (1) and second gasket (2) on bolt (6), and first gasket (1) and second gasket (2) are located by the fastener both sides.
4. A double nut loosening prevention structure as defined in claim 3, wherein: the first gasket (1) and the second gasket (2) are of a rubber structure or a metal structure.
5. A double nut loosening prevention structure as defined in claim 1, wherein: the shape of the convex structure (302) is set to be a round table shape, and the center line of the convex structure (302) is not on the same straight line with the center line of the nut main body (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021036003.8U CN213331991U (en) | 2020-06-08 | 2020-06-08 | Double-nut anti-loosening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021036003.8U CN213331991U (en) | 2020-06-08 | 2020-06-08 | Double-nut anti-loosening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213331991U true CN213331991U (en) | 2021-06-01 |
Family
ID=76080031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021036003.8U Expired - Fee Related CN213331991U (en) | 2020-06-08 | 2020-06-08 | Double-nut anti-loosening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213331991U (en) |
-
2020
- 2020-06-08 CN CN202021036003.8U patent/CN213331991U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210601 |