CN221503713U - Fastening screw with retaining structure - Google Patents
Fastening screw with retaining structure Download PDFInfo
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- CN221503713U CN221503713U CN202420303696.4U CN202420303696U CN221503713U CN 221503713 U CN221503713 U CN 221503713U CN 202420303696 U CN202420303696 U CN 202420303696U CN 221503713 U CN221503713 U CN 221503713U
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- 230000002159 abnormal effect Effects 0.000 claims description 17
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005056 compaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a fastening screw with a retaining structure, and relates to the field of screws. According to the utility model, the special-shaped block is arranged outside the screw groove, the first special-shaped surface and the second special-shaped surface are arranged outside the special-shaped block, the cambered surface angle of the first special-shaped surface is smaller than that of the second special-shaped surface, meanwhile, the cross section diameter of the second plane is larger than the end cross section area of the screw main body, after the fastening bolt is installed, the fastening bolt can be loosened only by being subjected to larger force than that during compaction, so that the fastening strength of the fastening bolt is enhanced, and the fastening bolt is prevented from being loosened after long-time use; the tool can be selected to be inserted into the square groove, the combination of the square groove and the cross groove or the combination of the square groove, the cross groove and the conical groove, so that the application range of the maintenance tool is improved, and the fastening and maintenance are convenient.
Description
Technical Field
The utility model relates to the technical field of screws, in particular to a fastening screw with a backstop structure.
Background
The screw is a tool for progressively fastening a machine part by utilizing the physical and mathematical principles of the inclined plane circular rotation and friction force of an object, and is an indispensable industrial necessity in daily life: very small screws for use in cameras, spectacles, watches, electronics, etc.; general screws for televisions, electrical products, musical instruments, furniture, and the like; as for engineering, construction and bridge, large-scale screws and nuts are used; traffic tools, airplanes, electric cars, automobiles and the like are used together by the large screws and the small screws.
In the prior art, after the fastening screw is used for a long time, the screw thread and the fastening position on the outer surface of the fastening screw are easy to loosen, the strength of fixed occlusion is poor, the fastening effect is poor, and the phenomenon of screw rollback is easy to occur.
Disclosure of utility model
The utility model mainly provides a fastening screw with a backstop structure, which is used for preventing screw rollback and is convenient to detach.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a fastening screw with stopping structure, includes nut, screw main part and screw head, the one end fixed connection of nut and screw main part, the screw head includes first plane, conical surface and second plane, the second plane is fixed connection with the one end of screw main part, the fastening groove has been seted up to the outside of screw head, the screw groove has been seted up to the outside of screw main part, one side fixedly connected with abnormal shape piece of screw groove, one side of abnormal shape piece is provided with first abnormal shape, the opposite side of abnormal shape piece is provided with the second abnormal shape, and the one end through the screw head sets up to first plane, and the other end of screw head sets up to the second plane, through rotating the nut, screws into the fixture with screw head and screw main part, is provided with the abnormal shape piece through the outside of screw groove, at the in-process of screwing down, the second abnormal shape piece one side and the fixture surface contact, after the screw head is also pressed into inside, when the trend that fastening bolt has become flexible, the first abnormal shape piece opposite side pushes up in the recess of fixture, and the first abnormal shape piece is provided with first abnormal shape, and the second abnormal shape piece is provided with second abnormal shape, and the second cambered surface is different from the second cambered surface, and the diameter is stronger than the second cambered surface is the second plane, and the diameter is bigger than the second cambered surface is just the diameter is the second plane is needed to the time to the diameter of the bolt to be taken down to the plane.
Preferably, one side fixedly connected with anti-skidding tooth of nut, anti-skidding tooth encircles the surface at the screw main part, through a plurality of anti-skidding teeth of encircleing in the one end of screw main part, can improve the friction between nut and the object after installing fastening screw, prevent that the screw main part from becoming flexible.
Preferably, one side of the anti-slip tooth is provided with a second inclined plane, the other side of the anti-slip tooth is provided with a first inclined plane, the anti-slip tooth is obliquely arranged through the first inclined plane and the second inclined plane, and the inclination of the first inclined plane is smaller than that of the second inclined plane, so that the anti-slip tooth is inclined along the direction of the spiral groove, and anti-slip is conveniently carried out on the fastening screw.
Preferably, the square groove has been seted up at the side middle part of nut, the cross-shaped groove has all been seted up to four sides in square groove, through set up the square groove at the middle part of nut, has seted up the cross-shaped groove simultaneously in the side in square groove, can use square tool or cross-shaped tool to insert, drives the nut rotation.
Preferably, the side of the cross-shaped groove is provided with a conical groove, so that different screwdrivers can be conveniently used for rotating the nuts.
Preferably, the nut, the profiled block, the screw body and the screw head are integrally formed.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. According to the utility model, the special-shaped block is arranged outside the screw groove, the first special-shaped surface and the second special-shaped surface are arranged outside the special-shaped block, the cambered surface angle of the first special-shaped surface is smaller than that of the second special-shaped surface, meanwhile, the cross section diameter of the second plane is larger than the end cross section area of the screw main body, after the fastening bolt is installed, the fastening bolt can be loosened only by being subjected to larger force than that during compression, so that the fastening strength of the fastening bolt is enhanced, and the phenomenon that the fastening bolt is loosened after being used for a long time in a retreating way is prevented.
2. In the utility model, tools can be selected to be inserted into the square groove, the combination of the square groove and the cross groove or the combination of the square groove, the cross groove and the conical groove, so that the application range of the maintenance tool is improved, and the fastening and maintenance are convenient.
Drawings
Fig. 1 is a first perspective view showing a fastening screw with a retaining structure according to the present utility model;
Fig. 2 is a second perspective view showing a fastening screw with a retaining structure according to the present utility model;
FIG. 3 is a schematic plan view of a fastening screw with a retaining structure according to the present utility model;
FIG. 4 is a schematic view showing a planar structure of a nut of a fastening screw with a retaining structure according to the present utility model;
Fig. 5 is a schematic view showing a partial enlarged structure of a fastening screw with a retaining structure at a position a in fig. 3 according to the present utility model.
Legend description: 1. a screw cap; 2. anti-slip teeth; 3. a profiled block; 4. a screw body; 5. a screw groove; 6. a screw head; 7. a first inclined surface; 8. a second inclined surface; 9. a first plane; 10. a conical surface; 11. a second plane; 12. a conical groove; 13. a cross-shaped groove; 14. a square groove; 15. a first profile; 16. a fastening groove; 17. a second profile.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
Referring to fig. 1-4, the present utility model provides a technical solution: the fastening screw with a retaining structure comprises a screw cap 1, a screw main body 4 and a screw head 6, wherein one end of the screw cap 1 is fixedly connected with one end of the screw main body 4, the screw head 6 comprises a first plane 9, a conical surface 10 and a second plane 11, the second plane 11 is fixedly connected with one end of the screw main body 4, a fastening groove 16 is formed in the outer portion of the screw head 6, a screw groove 5 is formed in the outer portion of the screw main body 4, a special-shaped block 3 is fixedly connected to one side of the screw groove 5, a first special-shaped surface 15 is arranged on one side of the special-shaped block 3, a second special-shaped surface 17 is arranged on the other side of the special-shaped block 3, one end of the screw head 6 is arranged to be the first plane 9, the other end of the screw head 6 is arranged to be the second plane 11, the screw head 6 and the screw main body 4 are screwed into a fixed object by rotating the screw cap 1, the special-shaped block 3 is arranged outside the screw groove 5, in the screwing process, the second special-shaped surface 17 on one side of the special-shaped block 3 is in contact with the surface of a fixed object, after screwing, the special-shaped block 3 is pressed into the fixed object, when the fastening bolt has a loosening trend, the first special-shaped surface 15 on the other side of the special-shaped block 3 is propped in a groove of the fixed object, as the cambered surface angle of the first special-shaped surface 15 is smaller than that of the second special-shaped surface 17, the cross section diameter of the first plane 9 is smaller than that of the second plane 11, meanwhile, the cross section diameter of the second plane 11 is larger than the end cross section area of the screw main body 4, and the second plane 11 is propped against the surface of the fixed object, so that the fastening bolt can be loosened only by a force larger than the pressing force, thereby enhancing the fastening strength of the fastening bolt and preventing the fastening bolt from backing back after long-time use.
As shown in fig. 1 and 2, one side of the nut 1 is fixedly connected with an anti-slip tooth 2, the anti-slip tooth 2 surrounds the outer surface of the screw body 4, and by surrounding a plurality of anti-slip teeth 2 at one end of the screw body 4, friction between the nut 1 and an object can be improved after the fastening screw is installed, so that the screw body 4 is prevented from loosening.
As shown in fig. 3, a second inclined plane 8 is provided on one side of the anti-slip tooth 2, a first inclined plane 7 is provided on the other side of the anti-slip tooth 2, the first inclined plane 7 and the second inclined plane 8 are both inclined, and the inclination angle of the first inclined plane 7 is smaller than that of the second inclined plane 8, so that the anti-slip tooth 2 inclines along the direction of the spiral groove 5, and anti-slip is conveniently performed on the fastening screw.
As shown in fig. 4, a square groove 14 is formed in the middle of one side of the nut 1, and cross grooves 13 are formed in four sides of the square groove 14, and by forming the square groove 14 in the middle of the nut 1 and forming the cross grooves 13 in the sides of the square groove 14, a square tool or a cross tool can be used for insertion to drive the nut 1 to rotate.
As shown in fig. 4, the side of the cross-shaped groove 13 is provided with a conical groove 12, so that different screwdrivers can be used for turning the nut 1.
As shown in fig. 1, the nut 1, the profiled block 3, the screw body 4 and the screw head 6 are integrally formed.
The application method and the working principle of the device are as follows: the screw head 6 and the screw main body 4 are screwed into a fixed object by rotating the screw cap 1, the special-shaped block 3 is arranged outside the screw groove 5, the second special-shaped surface 17 on one side of the special-shaped block 3 is in contact with the surface of the fixed object in the screwing process, after screwing, the special-shaped block 3 is pressed into the fixed object, when the fastening bolt has a loosening trend, the first special-shaped surface 15 on the other side of the special-shaped block 3 is propped in a groove of the fixed object, as the cambered surface angle of the first special-shaped surface 15 is smaller than the cambered surface angle of the second special-shaped surface 17, the cross-section diameter of the first plane 9 is smaller than the cross-section diameter of the second plane 11, and meanwhile, the cross-section diameter of the second plane 11 is larger than the end cross-section area of the screw main body 4, and the second plane 11 is propped against the surface of the fixed object, so that the fastening bolt is required to be loosened by a force larger than the pressing force, thereby the strength of the fastening bolt is enhanced, tools can be inserted into the square groove 14 respectively when the fastening bolt is fastened and disassembled, the square groove 14 is inserted into the square groove, the cross-shaped groove is inserted into the square groove 14, the cross-shaped groove 13 or the combined with the square groove 13, and the conical groove is convenient to repair.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (6)
1. The utility model provides a fastening screw with stopping structure, includes nut (1), screw main part (4) and screw head (6), its characterized in that:
One end of nut (1) and the one end fixed connection of screw main part (4), screw head (6) include first plane (9), conical surface (10) and second plane (11), the one end fixed connection of second plane (11) and screw main part (4), fastening groove (16) have been seted up to the outside of screw head (6), screw groove (5) have been seted up to the outside of screw main part (4), one side fixedly connected with abnormal shape piece (3) of screw groove (5), one side of abnormal shape piece (3) is provided with first abnormal shape face (15), the opposite side of abnormal shape piece (3) is provided with second abnormal shape face (17).
2. The fastening screw with backstop structure of claim 1, wherein: one side of the nut (1) is fixedly connected with an anti-slip tooth (2), and the anti-slip tooth (2) surrounds the outer surface of the screw main body (4).
3. The fastening screw with backstop structure of claim 2, wherein: one side of the anti-slip tooth (2) is provided with a second inclined plane (8), and the other side of the anti-slip tooth (2) is provided with a first inclined plane (7).
4. The fastening screw with backstop structure of claim 1, wherein: square grooves (14) are formed in the middle of one side of the nut (1), and cross grooves (13) are formed in four side edges of each square groove (14).
5. The fastening screw with backstop structure of claim 4, wherein: the side of the cross-shaped groove (13) is provided with a conical groove (12).
6. The fastening screw with backstop structure of claim 1, wherein: the screw cap (1), the special-shaped block (3), the screw main body (4) and the screw head (6) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420303696.4U CN221503713U (en) | 2024-02-19 | 2024-02-19 | Fastening screw with retaining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420303696.4U CN221503713U (en) | 2024-02-19 | 2024-02-19 | Fastening screw with retaining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221503713U true CN221503713U (en) | 2024-08-09 |
Family
ID=92139715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420303696.4U Active CN221503713U (en) | 2024-02-19 | 2024-02-19 | Fastening screw with retaining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221503713U (en) |
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2024
- 2024-02-19 CN CN202420303696.4U patent/CN221503713U/en active Active
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