CN218480027U - Fastener capable of preventing loosening - Google Patents
Fastener capable of preventing loosening Download PDFInfo
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- CN218480027U CN218480027U CN202222839784.XU CN202222839784U CN218480027U CN 218480027 U CN218480027 U CN 218480027U CN 202222839784 U CN202222839784 U CN 202222839784U CN 218480027 U CN218480027 U CN 218480027U
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- nut
- screw rod
- bolt head
- fastener
- gasket
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Abstract
The utility model discloses a prevent fastener that becomes flexible relates to fastener technical field, including bolt head, nut, screw rod, first fixed orifices, second fixed orifices and nut internal thread, the screw rod is vertical to be placed, and the periphery side of screw rod is equipped with the screw thread, and the bolt head sets up in the screw rod upper end, the bolt head sets up to eight prismatic structures, and the nut setting is on the screw rod, be equipped with the nut internal thread in the circular through-hole that nut upper end middle part was seted up, and the nut sets up to eight prismatic structures, and the gasket sets up between bolt head and nut, and the cross recess sets up overhead at the bolt. The screw rod is the main part of fastener, and the tieing is used for rotatoryly and drives the screw rod fastening article, the nut through with the screw rod between relative rotation realize the nut on the screw rod vertical slip, can prevent that the fastener from leading to smooth silk unable use because of external force, prolonged the life of fastener, improved the practicality of fastener greatly.
Description
Technical Field
The utility model relates to a fastener technical field specifically is a prevent not hard up fastener.
Background
The fastener is a general name of a type of mechanical parts adopted when two or more parts (or components) are fastened and connected into a whole, the variety and the specification are various, the performance and the application are different, the standardization, the serialization and the universalization degree are extremely high, the fastener is a mechanical basic part which is most widely applied, the demand is large, and the practical use has the advantages of simplicity in operation, stability in use, long service life and the like.
The fastener capable of preventing loosening, which is proposed by the prior art with the grant publication number of CN212337865U, comprises a screw body and a bolt head, wherein the outer surface of the screw body is provided with a screw external thread, a movable nut is arranged in the middle of the screw external thread, the inner surface of the movable nut is provided with a nut internal thread, the upper end of the movable nut is provided with nut teeth, and gasket teeth are arranged above the nut teeth;
the fastener cannot be effectively prevented from slipping and cannot be normally used, and the production requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a prevent not hard up fastener, can prevent that the fastener from leading to smooth silk unable the use because of external force, prolonged the life of fastener, improved the practicality of fastener greatly, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a fastener for preventing looseness comprises a bolt head, a nut, a screw rod, a first fixing hole, a second fixing hole and a nut internal thread;
screw rod: the screw rod is vertically arranged, and threads are arranged on the outer peripheral side of the screw rod;
bolt head: the bolt head is arranged at the upper end of the screw rod and is of an octagonal prism structure;
nut: the nut is arranged on the screw rod, a nut internal thread is arranged in a circular through hole formed in the middle of the upper end of the nut, and the nut is of an octagonal prism structure;
gasket: is arranged between the bolt head and the nut;
a cross groove: is arranged on the bolt head. The screw is the main body of the fastener; the bolt head is used for rotating and driving the screw rod to fasten the object; the nut vertically slides on the screw rod through relative rotation between the nut and the screw rod; the gasket is used for preventing relative sliding between the bolt head and the nut; the cross-shaped groove is arranged on the bolt head.
Furthermore, the nut is connected with the screw through a nut internal thread arranged in the circular through hole in the middle of the upper end of the nut. Relative rotation occurs between the nut and the screw rod, so that the nut internal thread arranged in the circular through hole in the middle of the upper end of the nut and the thread on the outer peripheral side of the screw rod are driven to rotate mutually, and the nut slides in the axial direction of the screw rod while rotating.
Furthermore, a circular through hole is formed in the middle of the gasket, and the gasket penetrates through the screw rod through the circular through hole and is movably connected with the screw rod. The gasket is used for preventing relative sliding between the bolt head and the nut, so that the nut is tightly fixed on the screw rod, and the effect of fastening objects is achieved.
Furthermore, the cross groove is formed in the upper end surface of the bolt head, and a cross structure is formed between the bolt head 1 and the cross groove 6. The cross groove is used for fastening the fastener when the bolt head slides or an octagonal wrench is not used, so that the application range and the practicability of the fastener are greatly improved.
Furthermore, the nut anti-skidding structure further comprises nut anti-skidding teeth and gasket anti-skidding teeth, the nut anti-skidding teeth are evenly arranged at the upper end of the nut, the gasket anti-skidding teeth are evenly arranged at the lower end of the gasket, and the nut is in contact with the gasket anti-skidding teeth and the gasket through the nut anti-skidding teeth. The nut anti-skidding tooth and the gasket anti-skidding tooth are in mutual contact, and the nut is limited to fall off from the screw rod due to vibration under the action of friction force.
Furthermore, the nut further comprises a first fixing hole and a second fixing hole, wherein each first fixing hole is formed in each side wall of the bolt head, each second fixing hole is formed in each side wall of the nut, and the first fixing hole and the second fixing hole are both of rectangular structures. The bolt head and the nut are prevented from being used normally due to the fact that long-time corrosion causes thread slipping, and the first fixing hole and the second fixing hole are clamped and fixed in the first fixing hole and the second fixing hole through fixing bolts when the bolt head and the nut are damaged, so that the bolt head and the nut can be screwed out normally.
Compared with the prior art, the beneficial effects of the utility model are that: this fastener that prevents to become flexible has following benefit:
1. the anti-loosening fastener is provided with the cross groove, the fastener can be fastened when the bolt head slides or an octagonal wrench does not exist through the cross groove, and the application range and the practicability of the fastener are greatly improved;
2. the anti-loosening fastener is provided with a first fixing hole and a second fixing hole, and the first fixing hole and the second fixing hole are respectively clamped and fixed in the first fixing hole and the second fixing hole by fixing bolts when a bolt head and a nut are damaged, so that the bolt head and the nut are normally screwed out;
3. the fastener capable of preventing looseness can prevent the fastener from being incapable of being used due to the fact that sliding threads are caused by external force, the service life of the fastener is prolonged, and the practicability of the fastener is greatly improved.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic bottom structure of the present invention;
FIG. 3 is a schematic view of a partial structure of the present invention;
fig. 4 is a schematic view of the local two-structure of the present invention.
In the figure: the bolt comprises a bolt head 1, a nut 2, a screw rod 3, a gasket 4, a first fixing hole 5, a cross-shaped groove 6, a second fixing hole 7, a nut anti-skidding tooth 8, a gasket anti-skidding tooth 9 and a nut internal thread 10.
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 work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present embodiment provides a technical solution: a fastener for preventing looseness comprises a bolt head 1, a nut 2, a screw rod 3, a first fixing hole 5, a second fixing hole 7 and a nut internal thread 10;
and (3) a screw rod: the screw rod is vertically arranged, and threads are arranged on the outer peripheral side of the screw rod 3; the screw rod 3 is a main body of the fastener;
bolt head 1: the bolt head 1 is arranged at the upper end of the screw rod 3 and is of an octagonal prism structure; the bolt head 1 is used for rotating and driving the screw rod 3 to fasten objects;
and (3) a nut 2: the nut is arranged on the screw rod 3, a nut internal thread 10 is arranged in a circular through hole formed in the middle of the upper end of the nut 2, and the nut 2 is of an octagonal prism structure; the nut 2 vertically slides on the screw rod 3 through relative rotation between the nut 2 and the screw rod 3;
the nut 2 is in threaded connection with the screw rod 3 through a nut internal thread 10 arranged in the circular through hole in the middle of the upper end. The nut 2 and the screw rod 3 rotate relatively, so that the nut internal thread 10 arranged in the circular through hole in the middle of the upper end of the nut 2 and the thread on the outer peripheral side of the screw rod 3 are driven to rotate mutually, and the nut 2 slides in the axial direction of the screw rod 3 while rotating.
And (4) a gasket: is arranged between the bolt head 1 and the nut 2; the washer 4 is used for preventing relative sliding between the bolt head 1 and the nut 2;
a circular through hole is formed in the middle of the gasket 4, and the gasket 4 penetrates through the screw rod 3 through the circular through hole and is movably connected with the screw rod 3. The washer 4 is used for preventing relative sliding between the bolt head 1 and the nut 2, so that the nut 2 is tightly fixed on the screw rod 3, and the effect of fastening objects is achieved.
A cross-shaped groove 6: is provided on the bolt head 1. The cross-shaped groove 6 is provided on the bolt head 1.
The cross groove 6 is formed in the upper end surface of the bolt head 1, and a cross structure is formed between the bolt head 1 and the cross groove 6. The cross-shaped groove 6 is used for fastening the fastener when the bolt head 1 slides or an octagonal wrench does not exist, and the application range and the practicability of the fastener are greatly improved.
Still include nut antiskid tooth 8 and gasket antiskid tooth 9, the upper end of nut 2 evenly is equipped with nut antiskid tooth 8, and the lower extreme of gasket 4 evenly is equipped with gasket antiskid tooth 9, and nut 2 passes through nut antiskid tooth 8 and contacts between gasket antiskid tooth 9 and the gasket 4. The nut anti-slip teeth 8 and the gasket anti-slip teeth 9 are in mutual contact, and the nut 2 is limited to fall off from the screw rod 3 due to vibration under the action of friction force.
Still include first fixed orifices 5 and second fixed orifices 7, every first fixed orifices 5 is seted up respectively on every lateral wall of bolt head 1, and every second fixed orifices 7 is seted up respectively on every lateral wall of nut 2, and first fixed orifices 5 and second fixed orifices 7 all set up to rectangle type structure. The bolt head and the nut 2 are prevented from being used normally due to the fact that long-time corrosion causes thread sliding, the first fixing hole 5 and the second fixing hole 7 are respectively clamped and fixed in the first fixing hole 5 and the second fixing hole 7 through fixing bolts when the bolt head 1 and the nut 2 are damaged, and the bolt head 1 and the nut 2 are enabled to be screwed out normally.
The utility model provides a pair of prevent not hard up fastener's theory of operation as follows:
the screw rod 3 is used for rotating and driving the screw rod 3 to fasten objects for the main body bolt head 1 of the fastener, the nut 2 vertically slides on the screw rod 3 through relative rotation between the nut 2 and the screw rod 3, relative rotation occurs between the nut 2 and the screw rod 3, so that the nut internal thread 10 arranged in the circular through hole in the middle of the upper end of the nut 2 and the thread on the outer peripheral side of the screw rod 3 are driven to rotate mutually, the nut 2 slides in the axial direction of the screw rod 3 while rotating, the gasket 4 is used for preventing relative sliding between the bolt head 1 and the nut 2, the screw rod 3 is the main body of the fastener
The bolt head 1 is used for rotating and driving the screw rod 3 to fasten objects, the nut 2 vertically slides on the screw rod 3 through relative rotation between the nut 2 and the screw rod 3, relative rotation occurs between the nut 2 and the screw rod 3, so that the nut inner thread 10 arranged in the circular through hole in the middle of the upper end of the nut 2 and the thread on the outer peripheral side of the screw rod 3 are driven to rotate mutually, the nut 2 slides axially on the screw rod 3 while rotating, the gasket 4 is used for preventing relative sliding between the bolt head 1 and the nut 2, the nut anti-sliding teeth 8 and the gasket anti-sliding teeth 9 are in contact with each other, the nut 2 is limited by friction force to fall off from the screw rod 3 due to vibration, the first fixing hole 5 and the second fixing hole 7 are used for preventing the bolt head 1 and the nut 2 from being incapable of being normally used due to long-time corrosion, and the first fixing hole 5 and the second fixing hole 7 are respectively clamped and fixed in the first fixing hole 5 and the second fixing hole 7 through fixing bolts when the bolt head 1 and the nut 2 are damaged, so that the bolt head 1 and the nut 2 can be normally screwed out.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention can be used in other related technical fields, directly or indirectly, or in the same way as the present invention.
Claims (6)
1. A fastener that prevents loosening, characterized by: the bolt comprises a bolt head (1), a nut (2), a screw rod (3), a first fixing hole (5), a second fixing hole (7) and a nut internal thread (10);
screw (3): the screw rod (3) is vertically arranged, and threads are arranged on the outer peripheral side of the screw rod;
bolt head (1): the bolt head (1) is arranged at the upper end of the screw rod (3) and is in an octagonal prism structure;
nut (2): the nut is arranged on the screw rod (3), a nut internal thread (10) is arranged in a circular through hole formed in the middle of the upper end of the nut (2), and the nut (2) is of an octagonal prism structure;
gasket (4): is arranged between the bolt head (1) and the nut (2);
cross groove (6): is arranged on the bolt head (1).
2. A loosening prevention fastener as defined in claim 1, wherein: the nut (2) is in threaded connection with the screw rod (3) through a nut internal thread (10) arranged in the circular through hole in the middle of the upper end.
3. A loosening prevention fastener as claimed in claim 1, wherein: a circular through hole is formed in the middle of the gasket (4), and the gasket (4) penetrates through the screw rod (3) through the circular through hole and is movably connected with the screw rod (3).
4. A loosening prevention fastener as defined in claim 1, wherein: the cross groove (6) is formed in the surface of the upper end of the bolt head (1), and a cross structure is formed between the bolt head (1) and the cross groove (6).
5. A loosening prevention fastener as defined in claim 1, wherein: the anti-skidding nut is characterized by further comprising nut anti-skidding teeth (8) and gasket anti-skidding teeth (9), the nut anti-skidding teeth (8) are evenly arranged at the upper end of the nut (2), the gasket anti-skidding teeth (9) are evenly arranged at the lower end of the gasket (4), and the nut (2) is in contact with the gasket anti-skidding teeth (9) and the gasket (4) through the nut anti-skidding teeth (8).
6. A loosening prevention fastener as defined in claim 1, wherein: still include first fixed orifices (5) and second fixed orifices (7), every first fixed orifices (5) are seted up respectively on every lateral wall of bolt head (1), and every second fixed orifices (7) are seted up respectively on every lateral wall of nut (2), and first fixed orifices (5) and second fixed orifices (7) all set up to rectangle type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222839784.XU CN218480027U (en) | 2022-10-27 | 2022-10-27 | Fastener capable of preventing loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222839784.XU CN218480027U (en) | 2022-10-27 | 2022-10-27 | Fastener capable of preventing loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218480027U true CN218480027U (en) | 2023-02-14 |
Family
ID=85171909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222839784.XU Active CN218480027U (en) | 2022-10-27 | 2022-10-27 | Fastener capable of preventing loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218480027U (en) |
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2022
- 2022-10-27 CN CN202222839784.XU patent/CN218480027U/en active Active
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| GR01 | Patent grant |