CN219492785U - Reusable long-term locking bolt - Google Patents
Reusable long-term locking bolt Download PDFInfo
- Publication number
- CN219492785U CN219492785U CN202320601851.6U CN202320601851U CN219492785U CN 219492785 U CN219492785 U CN 219492785U CN 202320601851 U CN202320601851 U CN 202320601851U CN 219492785 U CN219492785 U CN 219492785U
- Authority
- CN
- China
- Prior art keywords
- fastening screw
- nut
- bolt
- bolt body
- locking
- 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.)
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Links
- 230000007774 longterm Effects 0.000 title abstract description 7
- 125000006850 spacer group Chemical group 0.000 claims abstract description 27
- 230000005923 long-lasting effect Effects 0.000 claims 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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- Connection Of Plates (AREA)
Abstract
The utility model relates to the technical field of fasteners, and particularly discloses a reusable long-term locking bolt which comprises a bolt body and a nut, wherein a threaded hole is formed in the free end of a rod body of the bolt body, the threaded hole is parallel to the bolt body, a fastening screw can be connected in the threaded hole in a threaded manner, the locking rotation direction of the fastening screw is opposite to that of the nut, a spacer bush can be abutted between the nut and the head of the fastening screw, and the spacer bush is sleeved on the fastening screw or the bolt body. The scheme is used for solving the problems that the existing locking structure is high in cost and the tooth groove is damaged by strain during disassembly so that the existing locking structure cannot be reused.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a reusable long-term locking bolt.
Background
The locking bolt is widely applied to the fastening in various industries, however, as the use time passes, the conventional locking bolt and nut can be loosened or even fall off after being used for a period of time, so various loosening prevention methods and locking structures appear in the market, and a detachable locking device, such as a detachable locking device of CN218564139U after patent publication, is taken as an example, and the loosening restriction on the loosening nut is formed by connecting a fastening part at the end of the rod body of the bolt. However, the fastening part and the nut of the structure are of special structures and are required to be manufactured separately, so that the cost of the locking structure is increased; in addition, when this locking structure is dismantled to needs, because of the revolve to opposite of locking part and nut, and locking part exists unsmooth complex tooth's socket with the nut terminal surface again, when leading to dismantling, locking part and the frictional force of nut terminal surface are very big, and the degree of difficulty of dismantling locking part is bigger, and destroys the tooth's socket strain when dismantling very easily and can not reuse again or influence repeatedly usable's effect.
Disclosure of Invention
The utility model aims to provide a reusable long-term locking bolt so as to solve the problems that the existing locking structure is high in cost and the tooth slot is damaged by strain and cannot be reused when the existing locking structure is disassembled.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the reusable long-term locking bolt comprises a bolt body and a nut, wherein a threaded hole is formed in the free end of a rod body of the bolt body, the threaded hole is parallel to the bolt body, a fastening screw is connected in the threaded hole in a threaded manner, the locking rotation direction of the fastening screw is opposite to the locking rotation direction of the nut, a spacer bush can be abutted between the nut and the head of the fastening screw, and the spacer bush is sleeved on the fastening screw or the bolt body.
The principle of the scheme is as follows: when in practical application, when the locked piece is locked and connected, the bolt body penetrates through the locked piece, then the nut is screwed into the free end of the rod body of the bolt body, so that the locked piece is tightly abutted by the nut and the head of the bolt body, then the spacer bush is sleeved on the fastening screw or the rod body of the bolt body, finally the fastening screw is screwed on the threaded hole of the bolt body, and the fastening screw is screwed until the spacer bush is tightly clamped between the nut and the head of the fastening screw; the screw direction of the nut is opposite to the screw direction of the fastening screw, so that after the bolt is fastened by the locking piece, the fastening screw and the nut are mutually restricted, and the bolt can be ensured to be locked for a long time.
Compared with the prior art, the nut and the fastening screw of the bolt locking structure can adopt standard parts, so that the cost of locking the bolt is greatly reduced; when the nut is dismounted, the technical scheme is characterized in that the tooth grooves are not formed, so that the dismounting of the fastening screw is not influenced by the screwing direction of the nut when the nut is dismounted, and the nut can be dismounted in a more labor-saving mode, and the dismounting is convenient and simple; meanwhile, the fastening screw and the nut are separated by the spacer bush so as not to affect each other during disassembly, and the bolt is ensured not to be damaged after being disassembled for multiple times so as to be reused for multiple times.
Preferably, as a modification, the threaded hole is arranged coaxially with the bolt body.
Preferably, as an improvement, the spacer bush can be sleeved on the fastening screw, and the center of the spacer bush is provided with a clearance groove for avoiding the clearance bolt body. After the fastening screw is detached from the bolt body, the spacer can be automatically detached from the bolt body, or the spacer is detached along with the fastening screw, so that the detachment is simpler and more convenient.
Preferably, as an improvement, the spacer is in clearance fit with the fastening screw; the spacer bush is convenient to be quickly sleeved on the fastening screw, and meanwhile, the screwing of the fastening screw is ensured not to be influenced by the spacer bush.
Preferably, as a modification, the fastening screw diameter is 1/3-2/5 of the bolt body diameter.
Preferably, as an improvement, the length of the fastening screw screwed into the threaded hole is 1/5-1/4 of the length of the shaft of the bolt body, so that the locking strength of the bolt body is ensured.
Preferably, as an improvement, the outer contour of the head of the fastening screw is polygonal or a groove with a polygonal cross section is arranged in the center of the head of the fastening screw, so that the dismounting tool can conveniently act on the fastening screw.
Drawings
Fig. 1 is a schematic cross-sectional structure of an embodiment of the present utility model.
FIG. 2 is a schematic three-dimensional view of a septum housing according to an embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: bolt body 1, screw hole 11, nut 2, fastening screw 3, spacer 4, by retaining member 5, keep away empty groove 41.
The embodiment is basically as shown in fig. 1 and 2, and the reusable long-term locking bolt comprises a bolt body 1, a nut 2, a fastening screw 3 and a spacer 4, wherein the fastening screw 3 is a cap screw, the nut 2 can be in threaded connection with the bolt body 1, a threaded hole 11 is formed in the free end of a shaft body of the bolt body 1, the threaded hole 11 and the bolt body 1 are coaxially arranged, the fastening screw 3 can be in threaded connection with the threaded hole 11, and the locking rotation direction of the fastening screw 3 is opposite to that of the nut 2. The diameter of the fastening screw 3 is one third to two fifths of the diameter of the bolt body 1, and the length of the fastening screw 3 screwed into the threaded hole 11 is one fifth to one fourth of the length of the shaft of the bolt body 1. The outer contour of the head of the fastening screw 3 is polygonal or a groove with a polygonal cross section is formed in the center of the head of the fastening screw 3, in this embodiment, the fastening screw 3 is a screw with a cylindrical head and an inner hexagonal groove is machined in the center of the head.
The spacer bush 4 is annular, a clearance groove 41 for avoiding the clearance of the bolt body 1 is formed in the center of the spacer bush 4, the spacer bush 4 is placed between the end face of the nut 2 and the head of the fastening screw 3 during locking and use, and meanwhile the spacer bush 4 is sleeved on the fastening screw 3 in a clearance fit mode.
The specific implementation process is as follows: when the locked piece 5 is locked and connected, the bolt body 1 with the bolt head penetrates through the locked piece 5, then the nut 2 is screwed into the free end of the shaft of the bolt body 1, so that the locked piece 5 is abutted against the nut 2 and the head of the bolt body 1, then the spacer 4 is sleeved on the shaft of the fastening screw 3, finally the fastening screw 3 is screwed on the threaded hole 11 of the bolt body 1, and the fastening screw 3 is screwed until the spacer 4 is tightly clamped between the nut 2 and the head of the fastening screw 3; because the screwing direction of the nut 2 is opposite to that of the fastening screw 3, after the bolt is fastened by the locking piece 5, the fastening screw 3 and the nut 2 are mutually restricted, and the locking effect is achieved, so that the bolt can be locked for a long time without loosening.
When dismantling, only need reverse screw tightening screw 3 can release the locking effect, dismantle simple and convenient, dismantle the back with fastening screw 3, spacer 4 can dismantle fast and not influence the quality of nut 2 completely, consequently, the locking bolt of this embodiment is difficult to loosen in long-time use, and still can reuse once more after dismantling, has improved locking bolt's reuse rate. Meanwhile, the locking bolt of the embodiment is simple in structure, and the nut 2 and the fastening screw 3 can be standard components, so that the cost of the locking bolt is lower.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. Repeatedly usable permanently locking bolt, including bolt body and nut, the shaft free end of bolt body is equipped with the screw hole, and the screw hole is parallel with the bolt body, its characterized in that: the screw hole can be connected with a fastening screw in a threaded manner, the locking rotation direction of the fastening screw is opposite to the locking rotation direction of the nut, and a spacer bush can be abutted between the nut and the head of the fastening screw and sleeved on the fastening screw or the bolt body.
2. The reusable long-lasting locking bolt according to claim 1, wherein: the threaded hole is arranged coaxially with the bolt body.
3. The reusable long-lasting locking bolt according to claim 1, wherein: the spacer bush can be sleeved on the fastening screw, and the center of the spacer bush is provided with a clearance groove for avoiding the clearance bolt body.
4. The reusable long-lasting locking bolt according to claim 2, wherein: the spacer bush is in clearance fit with the fastening screw.
5. The reusable long locking bolt according to any one of claims 1-4, wherein: the diameter of the fastening screw is 1/3-2/5 of the diameter of the bolt body.
6. The reusable long-lasting locking bolt according to claim 5, wherein: the length of the fastening screw screwed into the threaded hole is 1/5-1/4 of the length of the shaft body of the bolt body.
7. The reusable long locking bolt according to any one of claims 1-4, wherein: the outer outline of the head of the fastening screw is polygonal or the center of the head of the fastening screw is provided with a groove with a polygonal cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320601851.6U CN219492785U (en) | 2023-03-23 | 2023-03-23 | Reusable long-term locking bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320601851.6U CN219492785U (en) | 2023-03-23 | 2023-03-23 | Reusable long-term locking bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219492785U true CN219492785U (en) | 2023-08-08 |
Family
ID=87483746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320601851.6U Active CN219492785U (en) | 2023-03-23 | 2023-03-23 | Reusable long-term locking bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219492785U (en) |
-
2023
- 2023-03-23 CN CN202320601851.6U patent/CN219492785U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |