CN219975108U - Locking bolt, nut fastening assembly that takes off - Google Patents
Locking bolt, nut fastening assembly that takes off Download PDFInfo
- Publication number
- CN219975108U CN219975108U CN202223439599.8U CN202223439599U CN219975108U CN 219975108 U CN219975108 U CN 219975108U CN 202223439599 U CN202223439599 U CN 202223439599U CN 219975108 U CN219975108 U CN 219975108U
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- Prior art keywords
- nut
- gasket
- bolt
- screw rod
- thread
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- 239000011295 pitch Substances 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses an anti-loosening bolt and nut fastening assembly, which comprises a bolt, a nut, a gasket, a nut and a nut, wherein the nut is in threaded connection with a screw rod of the bolt, the gasket is positioned between the nut and the head of the bolt and sleeved on the screw rod, the nut is arranged on the screw rod in a penetrating manner and sleeved on the nut, a first external thread is arranged on the outer circumferential surface of the gasket, an internal thread matched with the external thread is arranged on the nut, when the nut is in threaded connection with the gasket, the end face of the inner wall of the nut, which is far away from one end of the gasket, is abutted with the nut, and the end face of the gasket, which is close to one end of the nut, is abutted with the nut and locks the nut on the screw rod. Compared with the prior art, the fastening assembly provided by the utility model has the advantages that the nuts are abutted and synchronous with the gaskets, and the nuts, the gaskets and the fastening assembly are mutually restricted, so that the fastening assembly is not easy to fall off in a fastening state, and the fastening effect is good.
Description
Technical Field
The utility model relates to the technical field of fastening devices, in particular to an anti-loosening bolt and nut fastening assembly.
Background
In the prior art, the fastening combination of the bolt and the nut is widely applied to various industries in industrial production, and in the prior art, the nut and the bolt are usually added with a flat gasket and a spring cushion to increase the fastening effect and prevent loosening in the matched use. The structure cannot fundamentally play the role of preventing loosening, the anti-loosening effect is not good enough, and accidents caused by loosening of nuts are more. In many fields of construction, military industry or railroad bridges, the requirement for fasteners is higher and once loosening occurs, the consequences are not envisaged. Therefore, there is a strong need for a fastening structure with a good fastening effect, which can effectively prevent loosening, so as to meet the needs of users.
Disclosure of Invention
The utility model provides an anti-loosening bolt and nut fastening assembly for solving the problems in the prior art, and solves the problems in the prior art that the bolt and nut fastening assembly is easy to loosen and has poor fastening effect.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a locking bolt, nut fastening assembly, is in including bolt, threaded connection nut on the screw rod of bolt, be located between nut and the bolt head and the cover is located gasket on the screw rod, wear to locate on the screw rod and the cover is located nut on the nut, be equipped with first external screw thread on the outer circumference surface of gasket, be equipped with on the nut with external screw thread matching's internal screw thread, works as nut and gasket threaded connection, the nut is kept away from the inner wall terminal surface and the nut butt of gasket one end the terminal surface and the nut butt of gasket near nut one end and will the nut locks on the screw rod.
The screw rod of bolt is equipped with the second external screw thread, and the trend of second external screw thread is opposite with the trend of first external screw thread on the gasket.
The pitch of the second thread on the screw rod of the bolt is larger than the pitches of the first external thread on the gasket and the internal thread on the nut.
When the nut and the gasket lock the nut on the screw rod, a gap is reserved between the end face of the nut, which is close to one end of the gasket, and the end face of the gasket, which is far away from one end of the nut.
The nut is close to one end of the gasket is provided with an axial hole, the inner diameter of the axial hole is larger than the outer diameter of the nut, the internal thread on the nut is arranged on the circumferential inner wall of the axial hole, one end, far away from the head of the bolt, of the nut is provided with an axial through hole, and the aperture of the axial through hole is larger than the outer diameter of the screw.
The nut is hexagonal in appearance.
The nut is made of an elastic material.
The elastic material is spring steel.
The utility model has the beneficial effects that:
compared with the prior art, the fastening assembly provided by the utility model has the advantages that the nuts are abutted and synchronous with the gaskets, and the nuts, the gaskets and the fastening assembly are mutually restricted, so that the fastening assembly is not easy to fall off in a fastening state, and the fastening effect is good.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a front view of the present utility model.
Fig. 2 is a cross-sectional view A-A of fig. 1.
Figure details:
1. bolts, 11, bolt heads, 12 and screw rods;
2. a gasket 21, a central hole 22, a first external thread;
3. a nut 31, an axial hole, a 32 axial through hole, 33 and an internal thread;
4. and (3) a nut.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects obtained by the utility model easy to understand, the following describes the specific embodiment of the utility model with reference to the specific drawings.
It should be noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
As shown in fig. 1-2, in an embodiment of the present utility model, an anti-loosening bolt and nut fastening assembly is provided, which comprises a bolt 1, a nut 4 screwed on a screw 12 of the bolt 1, a gasket 2 positioned between the nut 4 and a bolt head 11 and sleeved on the screw 12, and a nut 3 penetrating through the screw 12 and sleeved on the nut 4, wherein a first external thread 22 is provided on an outer circumferential surface of the gasket 2, an internal thread 33 matched with the first external thread 22 is provided on the nut 3, and when the nut 3 is screwed with the gasket 2, an inner wall end surface of one end of the nut 3, which is far away from the gasket 2, is abutted with the nut 4, and an end surface of the gasket 2, which is close to one end of the nut 4, is abutted with the nut 4 and locks the nut 4 on the screw 12. Compared with the prior art, the fastening assembly provided by the utility model has the advantages that the nuts are abutted and synchronous with the gaskets, and the nuts, the gaskets and the fastening assembly are mutually restricted, so that the fastening assembly is not easy to fall off in a fastening state, and the fastening effect is good.
The nut 4 is a standard nut, preferably a hexagon. The bolt 1 is a standard bolt and comprises a bolt head 11 and a screw rod 12, wherein a second external thread on the screw rod 12 is in threaded connection with an internal thread on the nut 4.
When in use, the clamped object is sleeved on the screw rod 12 and is arranged between the bolt head 11 and the gasket 2, and is locked by the nut 4. Through the threaded connection between the nut 3 and the gasket 2 and the abutting connection between the inner wall of the nut 3 and the nut 4, the nut 4 can be further locked on the screw rod 12, the nut 4 is prevented from loosening, and a good anti-loosening effect is achieved.
Specifically, the spacer 2 has a central hole 21, and the spacer 2 is fitted over the screw 12 through the central hole 21.
Further, a second external thread is provided on the shank 12 of the bolt 1, and the direction of the second external thread is opposite to that of the first external thread 22 on the gasket 2. Therefore, when the nut 3 and the nut 4 vibrate at the same frequency, the directions of the threads of the nut 3 and the nut 4 are opposite, the falling-off rotation directions of the nut 4 and the nut 3 are opposite, the abutting nut 4 and the nut 3 are synchronous together, the nut 3 has a resisting action on the looseness of the nut 4, and the nut 3 are mutually restricted, so that the nut 4 cannot fall off easily, and the fastening effect of the nut 4 is good.
Further, the pitch of the second external thread on the shank 12 of the bolt 1 is larger than the pitch of the first external thread on the washer 2 and the pitch of the internal thread 33 on the nut 3. Under the same vibration condition, the looseness of the nut 3 is smaller than that of the nut 4, and the looseness prevention effect of the nut 4 can be improved.
Specifically, when the nut 3 and the washer 2 lock the nut 4 on the screw 12, a gap is formed between the end face of the nut 3 near the end of the washer 2 and the end face of the washer 2 far from the end of the nut 4. The gasket 2 can be always positioned outside the clamped object.
Specifically, the nut 3 is close to one end of the gasket 2 and is provided with an axial opening 31, the inner diameter of the axial opening 31 is larger than the outer diameter of the nut 4, the internal thread on the nut 3 is arranged on the circumferential inner wall of the axial opening 31, one end, far away from the bolt head 11, of the nut 3 is provided with an axial through hole 32, and the aperture of the axial through hole 32 is larger than the outer diameter of the screw 12. In use, the nut 3 is sleeved on the screw 12 and the nut 4 from the end of the screw 12 remote from the bolt head 11.
Preferably, the nut 3 has a hexagonal shape.
Preferably, the nut 3 is made of an elastic material.
Preferably, the elastic material is spring steel. When the spring steel is stressed, the tension absorbing effect is good, and the expansion space is large.
The above embodiments and the drawings are only for illustrating the technical aspects of the present utility model, and are not to be construed as limiting the present utility model. It should be noted that modifications to the embodiments described in the foregoing may be made by those skilled in the art, or equivalents may be substituted for some or all of the features thereof, and such modifications or substitutions should be included in the scope of the claims.
Claims (8)
1. An anti-loosening bolt and nut fastening assembly is characterized in that: including bolt, threaded connection be in nut on the screw rod of bolt, be located between nut and the bolt head and the cover is located gasket on the screw rod, wear to locate on the screw rod and the cover is located nut on the nut, be equipped with first external screw thread on the outer circumference surface of gasket, be equipped with on the nut with the internal thread that the external screw thread matches, works as when nut and gasket threaded connection, the nut is kept away from the inner wall terminal surface and the nut butt of gasket one end the terminal surface and the nut butt that the gasket is close to nut one end and will the nut locks on the screw rod.
2. The anti-loosening bolt and nut fastener assembly of claim 1, further comprising: the screw rod of bolt is equipped with the second external screw thread, and the trend of second external screw thread is opposite with the trend of first external screw thread on the gasket.
3. The anti-loosening bolt and nut fastener assembly of claim 2, further comprising: the pitch of the second thread on the screw rod of the bolt is larger than the pitches of the first external thread on the gasket and the internal thread on the nut.
4. The anti-loosening bolt and nut fastener assembly of claim 1, further comprising: when the nut and the gasket lock the nut on the screw rod, a gap is reserved between the end face of the nut, which is close to one end of the gasket, and the end face of the gasket, which is far away from one end of the nut.
5. The anti-loosening bolt and nut fastener assembly of claim 1, further comprising: the nut is close to one end of the gasket is provided with an axial hole, the inner diameter of the axial hole is larger than the outer diameter of the nut, the internal thread on the nut is arranged on the circumferential inner wall of the axial hole, one end, far away from the head of the bolt, of the nut is provided with an axial through hole, and the aperture of the axial through hole is larger than the outer diameter of the screw.
6. The anti-loosening bolt and nut fastener assembly of claim 5, further comprising: the nut is hexagonal in appearance.
7. The anti-loosening bolt and nut fastener assembly of claim 6, further comprising: the nut is made of an elastic material.
8. The anti-loosening bolt and nut fastener assembly of claim 7, further comprising: the elastic material is spring steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439599.8U CN219975108U (en) | 2022-12-20 | 2022-12-20 | Locking bolt, nut fastening assembly that takes off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439599.8U CN219975108U (en) | 2022-12-20 | 2022-12-20 | Locking bolt, nut fastening assembly that takes off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219975108U true CN219975108U (en) | 2023-11-07 |
Family
ID=88577747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223439599.8U Active CN219975108U (en) | 2022-12-20 | 2022-12-20 | Locking bolt, nut fastening assembly that takes off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219975108U (en) |
-
2022
- 2022-12-20 CN CN202223439599.8U patent/CN219975108U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |