CN210106376U - Locking fastening bolt subassembly that takes off - Google Patents
Locking fastening bolt subassembly that takes off Download PDFInfo
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- CN210106376U CN210106376U CN201920579514.5U CN201920579514U CN210106376U CN 210106376 U CN210106376 U CN 210106376U CN 201920579514 U CN201920579514 U CN 201920579514U CN 210106376 U CN210106376 U CN 210106376U
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- nut
- sleeve
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- screw
- fastening
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Abstract
The utility model relates to a locking fastening bolt subassembly that takes off, include: the bolt body comprises an upper screw and a lower screw, wherein the diameter of the upper screw is larger than that of the lower screw, and the thread directions of the upper screw and the lower screw are opposite; dividing a first nut and a second nut; and, a fastening assembly, the fastening assembly comprising: first sleeve, first retaining member, second sleeve, and second retaining member, first sleeve cup joint in the second sleeve. The utility model provides a locking fastening bolt subassembly that takes off treats fastening workpiece with bolt body screw in, earlier with screw rod on the first nut screw in, again with screw rod under the second nut screw in, fastening component cup joints outside first nut and second nut, makes first nut and second nut relatively fixed, because of the screw thread opposite direction of first nut and second nut, the rotation that first nut and second nut take place when will slipping restricts mutually, has played the effect of locking taking off fastening.
Description
Technical Field
The utility model relates to a bolt technical field, in particular to locking take off fastening bolt subassembly.
Background
The bolt is the most common fastener at present, is often used for fixing between the mechanical transmission part, can cause the shake between the part between the mechanical transmission, and current bolt subassembly is after long-time the use, and the influence that receives the vibration can lead to the locking force between nut and the bolt to reduce, causes the not hard up or the drop of nut, makes machinery can not the stable transmission.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an anti-loosening fastening bolt assembly has the advantage that improves the fastening effect and prevent to loosen.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a locking fastening bolt assembly comprising: the bolt body comprises an upper screw and a lower screw, wherein the diameter of the upper screw is larger than that of the lower screw, and the thread directions of the upper screw and the lower screw are opposite; the first nut and the second nut are respectively in threaded connection with the upper screw rod and the lower screw rod; and a fastening assembly sleeved on the first nut and the second nut, the fastening assembly comprising: the first sleeve is fixedly connected with the first nut, the first locking piece of the first nut is fixed on the first sleeve, the second sleeve is fixedly connected with the second nut, the second locking piece of the second nut is fixed on the second sleeve, the first sleeve is sleeved on the second sleeve, and the first sleeve and the second sleeve can perform relative telescopic movement.
Realize above-mentioned technical scheme, treat the fastening work piece with bolt body screw in, screw rod in the first nut screw in earlier, make and treat that the fastening work piece presss from both sides tightly between bolt body and first nut, screw rod down with the second nut screw in again, cup joint first sleeve in first nut and utilize first retaining member to make first sleeve and first nut relatively fixed, the relative position of second sleeve and second nut can be fixed to the second retaining member to adjustment second telescopic position, make first nut and second nut relatively fixed, because of the screw thread opposite direction of first nut and second nut, the rotation that first nut and second nut take place when will the slippage restricts mutually, the effect of locking the fastening of taking off has been played.
As a preferred scheme of the present invention, a first locking groove is formed on an outer wall of the first nut, a locking hole adapted to the first locking groove is formed on the first sleeve, and the first locking member passes through the locking hole and is engaged with the first locking groove; and a second locking groove is formed in the outer wall of the second nut, a second locking hole matched with the second locking groove is formed in the second sleeve, and the second locking piece penetrates through the second locking hole and is embedded with the second locking groove in a clamping manner.
The technical scheme is realized, and the fastening assembly is fixedly connected with the first nut and the second nut.
As an optimized scheme of the utility model, first sleeve with second sleeve threaded connection, second locking hole is vertical waist shape hole.
According to the technical scheme, when the bolt fastens various different workpieces, the relative position of the first nut and the second nut is not fixed, the relative position of the first sleeve and the second sleeve is screwed to enable the fastening assembly to be fixedly sleeved on the first nut and the second nut, meanwhile, the thread pitch of the thread fit between the first sleeve and the second sleeve is different from the thread pitch of the thread fit between the second nut and the lower screw rod, the axis of the second locking hole and the axis of the second locking groove are not overlapped when the second locking hole and the second locking groove are on the same horizontal plane, and the vertical kidney-shaped hole enables the second locking member to be matched with the second locking groove conveniently.
As a preferred embodiment of the present invention, the screwing direction of the screw-thread fit between the first sleeve and the second sleeve is opposite to the screwing direction of the screw-thread fit between the second nut and the lower screw rod.
By the technical scheme, the relative positions of the first sleeve and the second sleeve cannot be changed by rotating the first nut and the second nut.
As a preferred scheme of the utility model, second sleeve outer wall upper end is equipped with the sliding block, just first sleeve inner wall seted up with the sliding groove of sliding block looks adaptation.
According to the technical scheme, when the bolt fastens various different workpieces, the relative position of the first nut and the second nut is not fixed, and the relative position of the first sleeve and the second sleeve is adjusted in a sliding mode so that the fastening assembly can be fixedly sleeved on the first nut and the second nut.
As a preferred embodiment of the present invention, the first nut and the second nut are round nuts, and the diameter of the inner wall of the second sleeve is greater than or equal to the diameter of the outer wall of the first nut.
Realize above-mentioned technical scheme, conveniently cup joint fastening components and adjust first sleeve and the telescopic relative position of second.
As a preferred scheme of the utility model, first retaining member and first locking groove threaded connection, the second retaining member with second locking groove threaded connection.
Realize above-mentioned technical scheme, make between first nut and the first sleeve, and the second nut and the second sleeve be connected more firmly.
To sum up, the utility model discloses following beneficial effect has:
the bolt body is screwed into a workpiece to be fastened, the first nut is screwed into the upper screw rod firstly, the workpiece to be fastened is clamped between the bolt body and the first nut, the second nut is screwed into the lower screw rod, the first sleeve is sleeved on the first nut and penetrates through the first locking hole and the first locking groove in threaded connection through the first locking piece, the first sleeve and the first nut are fixed relatively, the position of the second sleeve is adjusted to enable the second locking hole and the second locking groove to coincide relatively, the second locking piece penetrates through the second locking hole and the second locking groove in threaded connection, and therefore the relative position of the second sleeve and the second nut is fixed relatively, the first nut and the second nut are fixed relatively, and due to the fact that the thread directions of the first nut and the second nut are opposite, rotation of the first nut and the second nut when slipping off is about to occur is limited mutually, and the anti-loosening and fastening effects are achieved.
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 these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a cross-sectional view of a first embodiment of the present invention.
Fig. 3 is a cross-sectional view of a second embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
100. a bolt body; 101. an upper screw rod; 102. a lower screw rod;
200. a first nut; 201. a second nut; 202. a first locking groove; 203. a second locking groove;
300. a fastening assembly; 301. a first sleeve; 302. a first locking hole; 303. a second sleeve; 304. a second locking hole; 305; a first locking member; 306. a second locking member; 307. a slider; 308. a sliding groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1 and 2, the utility model provides a locking fastening bolt subassembly that takes off, include: bolt body 100, first nut 200, second nut 201, and fastening assembly 300.
The bolt body 100 is provided with an upper screw 101 and a lower screw 102, the diameter of the upper screw 101 is larger than that of the lower screw 102, the thread directions of the upper screw 101 and the lower screw 102 are opposite, a first nut 200 is in threaded connection with the upper screw 101, and a second nut 201 is in threaded connection with the lower screw 102.
The fastening assembly 300 includes: the first sleeve 301, the first locking piece 305, the second sleeve 303 and the second locking piece 306, the first sleeve 301 and the second sleeve 303 are circular cylinders, the inner diameter of the first sleeve 301 is equal to the outer diameter of the second sleeve 303, and the first sleeve 301 is in threaded connection with the second sleeve 303.
A first locking groove 202 is formed in the outer wall of the first nut 200, a first locking hole 302 matched with the first locking groove 202 is formed in the first sleeve 301, and a first locking piece 305 penetrates through the first locking hole 302 and is in threaded connection with the first locking groove 202; the outer wall of the second nut 201 is provided with a second locking groove 203, the second sleeve 303 is provided with a second locking hole 304 matched with the second locking groove 203, the second locking hole 304 is a vertical waist-shaped hole, after the first sleeve 301 is fixed with the first nut 200, the second sleeve 303 is adjusted to enable the second locking hole 304 to be relatively overlapped with the second locking groove 203, and the second locking member 306 penetrates through the second locking hole 304 and is in threaded connection with the second locking groove 203.
Further, the first nut 200 and the second nut 201 are round nuts, and the diameter of the inner wall of the second sleeve 303 is larger than or equal to the diameter of the outer wall of the first nut 200, so that the fastening assembly 300 is convenient to assemble and the relative position between the first sleeve 301 and the second sleeve 303 is convenient to adjust, and meanwhile, the screwing direction of the threaded fit between the first sleeve 301 and the second sleeve 303 is opposite to that of the threaded fit between the second nut 201 and the lower screw 102, so that the relative positions of the first sleeve 301 and the second sleeve 303 cannot be changed by the rotation of the first nut 200 and the second nut 201.
In the embodiment of the present invention, when fastening a workpiece, the bolt body 100 is screwed into the workpiece to be fastened, the first nut 200 is screwed into the upper screw 101, so that the workpiece to be fastened is clamped between the bolt body 100 and the first nut 200, the second nut 201 is screwed into the lower screw 102, the first sleeve 301 is sleeved on the first nut 200 and passes through the first locking hole 302 and is in threaded connection with the first locking groove 202 by using the first locking member 305, so that the first sleeve 301 and the first nut 200 are relatively fixed, the position of the second sleeve 303 is screwed and adjusted so that the second locking hole 304 and the second locking groove 203 are relatively overlapped, the second locking member 306 passes through the second locking hole 304 and is in threaded connection with the second locking groove 203, thereby fixing the relative position of the second sleeve 303 and the second nut 201, so that the first nut 200 and the second nut 21 are relatively fixed, because the thread directions of the first nut 200 and the second nut 201 are opposite, the rotation of the first nut 200 and the second nut 201 when slipping off is mutually limited, plays the role of loosening and fastening prevention.
Example two
As shown in fig. 3, the present embodiment is different from the first embodiment in that: in this embodiment, the second sleeve 301 is slidably connected to the first sleeve 303, a sliding block 307 is disposed on an upper end of an outer wall of the second sleeve 301, and a sliding groove 308 adapted to the sliding block 307 is disposed on an inner wall of the first sleeve 303.
In the embodiment of the present invention, when fastening a workpiece, the bolt body 100 is screwed into the workpiece to be fastened, the first nut 200 is screwed into the upper screw 101, so that the workpiece to be fastened is clamped between the bolt body 100 and the first nut 200, the second nut 201 is screwed into the lower screw 102, the first sleeve 301 is sleeved on the first nut 200 and is threaded with the first locking groove 202 by the first locking member 305 passing through the first locking hole 302, so that the first sleeve 301 and the first nut 200 are relatively fixed, the position of the second sleeve 303 is adjusted by sliding so that the second locking hole 304 and the second locking groove 203 are relatively overlapped, the second locking member 306 passes through the second locking hole 304 and is threaded with the second locking groove 203, thereby fixing the relative position of the second sleeve 303 and the second nut 201, so that the first nut 200 and the second nut 21 are relatively fixed, because the thread directions of the first nut 200 and the second nut 201 are opposite, the rotation of the first nut 200 and the second nut 201 when the sliding-out is about to occur is mutually limited, and the function of loosening and fastening prevention is achieved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An anti-loosening fastening bolt assembly, comprising:
a bolt body, the bolt body comprising: the diameter of the upper screw is larger than that of the lower screw, and the thread directions of the upper screw and the lower screw are opposite;
the first nut and the second nut are respectively in threaded connection with the upper screw rod and the lower screw rod; and the number of the first and second groups,
a fastening assembly sleeved on the first nut and the second nut, the fastening assembly comprising: the first sleeve is fixedly connected with the first nut, the first locking piece of the first nut is fixed on the first sleeve, the second sleeve is fixedly connected with the second nut, the second locking piece of the second nut is fixed on the second sleeve, the first sleeve is sleeved on the second sleeve, and the first sleeve and the second sleeve can perform relative telescopic movement.
2. The anti-loosening fastening bolt assembly according to claim 1, wherein a first locking groove is formed in an outer wall of the first nut, a first locking hole matched with the first locking groove is formed in the first sleeve, and the first locking member penetrates through the first locking hole and is clamped and embedded with the first locking groove; and a second locking groove is formed in the outer wall of the second nut, a second locking hole matched with the second locking groove is formed in the second sleeve, and the second locking piece penetrates through the second locking hole and is embedded with the second locking groove in a clamping manner.
3. The anti-loosening fastening bolt assembly according to claim 2, wherein the first sleeve is threadedly connected to the second sleeve, and the second locking hole is a vertical kidney-shaped hole.
4. A locking fastening bolt assembly of claim 3 wherein the direction of rotation of the threaded engagement between the first sleeve and the second sleeve is opposite to the direction of rotation of the threaded engagement between the second nut and the lower screw.
5. The anti-loosening fastening bolt assembly according to claim 2, wherein a sliding block is disposed at an upper end of an outer wall of the second sleeve, and a sliding groove adapted to the sliding block is formed in an inner wall of the first sleeve.
6. The anti-loosening fastening bolt assembly according to claim 2, wherein the first nut and the second nut are round nuts, and the diameter of the inner wall of the second sleeve is greater than or equal to the diameter of the outer wall of the first nut.
7. The anti-loosening fastening bolt assembly according to claim 2, wherein the first locking member is threadedly coupled to the first locking groove, and the second locking member is threadedly coupled to the second locking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579514.5U CN210106376U (en) | 2019-04-25 | 2019-04-25 | Locking fastening bolt subassembly that takes off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579514.5U CN210106376U (en) | 2019-04-25 | 2019-04-25 | Locking fastening bolt subassembly that takes off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106376U true CN210106376U (en) | 2020-02-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920579514.5U Expired - Fee Related CN210106376U (en) | 2019-04-25 | 2019-04-25 | Locking fastening bolt subassembly that takes off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927863A (en) * | 2020-08-20 | 2020-11-13 | 海盐汇联通用配件有限公司 | Double-nut anti-loosening bolt group |
-
2019
- 2019-04-25 CN CN201920579514.5U patent/CN210106376U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927863A (en) * | 2020-08-20 | 2020-11-13 | 海盐汇联通用配件有限公司 | Double-nut anti-loosening bolt group |
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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 |
Granted publication date: 20200221 Termination date: 20210425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |