CN210686618U - Anti-loosening nut and bolt and nut assembly - Google Patents
Anti-loosening nut and bolt and nut assembly Download PDFInfo
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- CN210686618U CN210686618U CN201921700024.2U CN201921700024U CN210686618U CN 210686618 U CN210686618 U CN 210686618U CN 201921700024 U CN201921700024 U CN 201921700024U CN 210686618 U CN210686618 U CN 210686618U
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Abstract
The utility model discloses a loosening prevention nut, which comprises a nut body, wherein the inner side wall of the nut body is provided with a groove, the outer side wall of the nut body corresponding to the groove is provided with a threaded hole, and the threaded hole is communicated with the groove inner area of the groove; a stopper fitted in the groove; and the stop bolt is arranged in the threaded hole in a threaded mode and is in contact with the stop piece, and the stop bolt can be extruded by rotating the stop bolt to deform the stop piece. The utility model also discloses a bolt nut subassembly, including aforementioned locking nut, gasket and the bolt of moving, locking nut and gasket are worn to overlap and are installed on the bolt. The utility model provides a locking nut and bolt-nut subassembly that moves realizes the fastening connection between the bolt-nut and does not become flexible.
Description
Technical Field
The utility model relates to a fastening connection spare technical field especially relates to an anti-looseness nut and bolt and nut subassembly.
Background
At present, on numerous occasions such as science and technology, production, processing and experiment and mechanical equipment and instrument and meter by the fastener of wide application, ordinary bolt and nut subassembly all by the direct threaded connection of nut on the bolt, receive outside vibrations or impact bolt and nut subassembly gradually not hard up along with the time lapse, cause the incident easily, cause serious threat to the property of country and personal life safety, in order to prevent unexpected the emergence, must solve the not enough of the bolt and nut technique that current easy not hard up drops.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the problem that prior art exists, provide a locking nut and bolt-nut subassembly that moves, realize the fastening connection between the bolt-nut and not become flexible.
The utility model adopts the technical proposal that:
a lock nut includes
The nut comprises a nut body, wherein a groove is formed in the inner side wall of the nut body, a threaded hole is formed in the outer side wall of the nut body corresponding to the groove, and the threaded hole is communicated with the groove inner area of the groove;
a stopper fitted in the groove;
and the stop bolt is arranged in the threaded hole in a threaded mode and is in contact with the stop piece, and the stop bolt can be extruded by rotating the stop bolt to deform the stop piece.
Further, the grooves may be continuous or discontinuous.
Further, the grooves are one or more; when the grooves are multiple, the grooves are located at different positions on the inner wall of the nut body.
Further, the diameter of the threaded hole is 1/2-4/5 of the width of the groove top.
Furthermore, the opening direction of the threaded hole is the radial direction of the inner ring of the nut body or the included angle between the opening direction of the threaded hole and the radial direction of the inner diameter of the nut body is 1-3 degrees.
Further, a side of the stopper toward the center of the nut body is higher than the groove crest.
Further, a pressure head is formed at one end of the stop bolt, which is contacted with the stop piece, and the diameter of the pressure head is larger than that of the stop bolt.
Furthermore, a step matched with the pressure head is arranged at the joint of the threaded hole and the groove.
The bolt and nut assembly comprises the anti-loosening nut, a gasket and a bolt, wherein the anti-loosening nut and the gasket are installed on the bolt in a penetrating and sleeving mode.
Further, a gasket is also included.
The utility model has the advantages that:
the utility model discloses a solve prior art in the problem, designed a locking nut that moves, including nut body, retainer and locking bolt. Through the cooperation of stopper and tumbler, the frictional force of holding between multiplicable nut body and the bolt to play the locking function of moving.
Simultaneously the utility model also provides a bolt and nut subassembly, including locking nut, gasket and bolt that moves, the nut body revolves soon the back that targets in place, and the rotating stopcock makes it remove towards nut body center direction, and the pressure head can extrude the retainer, orders about the retainer of this extrusion point department to the expansion of bolt direction deformation, and the stopcock revolves soon the back that targets in place, and the counter-action of retainer has also played the function that prevents the stopcock and circle round. Due to the interference of the stop piece and the stop bolt, the anti-loosening nut is firmly fixed on the bolt and cannot loosen and fall off due to factors such as vibration and the like. The stopper can alleviate vibrations to a certain extent owing to adopt rubber or nylon material, guarantees bolt and nut subassembly life.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of the anti-loose nut in embodiment 1 of the present invention.
Fig. 2 is a schematic view of an exploded structure of the anti-loose nut in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of the nut body in embodiment 1 of the present invention.
Fig. 4 is a front view of the nut body according to embodiment 1 of the present invention.
Fig. 5 is a schematic sectional view along the direction of a-a in fig. 4.
Fig. 6 is a schematic view of a part of the enlarged structure at D in fig. 5.
Fig. 7 is a schematic structural view of a dead bolt according to embodiment 1 of the present invention.
Fig. 8 is a schematic structural view of the anti-loosening nut in embodiment 2 of the present invention.
Fig. 9 is an exploded schematic view of the anti-loose nut in embodiment 2 of the present invention.
Fig. 10 is a schematic structural view of the nut body according to embodiment 2 of the present invention.
Fig. 11 is a front view of the nut body according to embodiment 2 of the present invention.
FIG. 12 is a schematic sectional view taken along line B-B in FIG. 11.
FIG. 13 is a schematic sectional view taken along line C-C in FIG. 11.
Fig. 14 is a schematic structural view of a bolt and nut assembly according to embodiment 3 of the present invention.
Fig. 15 is a schematic structural view of a bolt and nut assembly according to embodiment 4 of the present invention.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention.
Embodiments of the present invention/utility model will be described in detail below with reference to the drawings.
Example 1
The utility model discloses an embodiment, locking nut 100, as shown in fig. 1 and fig. 2, includes nut body 1, stopper 2 and stop cock 3.
Specifically, the nut body 1 is shown in the attached figures 3-6. An annular groove 11 is formed in the middle of the inner side wall of the nut body 1, and a threaded hole 12 is formed in the outer side wall of the nut body 1. One end of the threaded hole 12 facing the center of the nut body 1 is communicated with the groove inner area of the groove 11, the opening direction of the threaded hole 12 is the radial direction of the inner ring of the nut body 1 or an included angle of 1-3 degrees with the radial direction, and the diameter of the threaded hole is 1/2-4/5 of the groove top width of the groove 11. An annular step 13 is provided at the junction of the threaded bore 11 and the recess 11. The step 13 has a diameter slightly larger than the diameter of the threaded hole 12. In this embodiment, six threaded holes 12 are formed in the nut body 1 and are uniformly arranged in a circumferential manner, and the forming direction of the threaded holes 12 is the radial direction of the nut body 1.
The stop piece 2 is made of a deformable material such as rubber or nylon, has a cross section similar to the cross section of the groove 11, and is embedded in the groove 11. When assembled, the surface of the stop member 2 on the side facing the center of the nut body 1 is slightly higher than the groove top of the groove 11.
The stop bolt 3, as shown in fig. 7, has a rod shape, has an external thread on its surface which is engaged with the internal thread of the threaded hole 12, and is fitted into the threaded hole 1. The stop bolt 3 is formed with a screw groove 31 at one end face and a pressure head 32 at the other end face to be matched with the step 13, and the pressure head 32 has a larger area. After assembly, the stop bolt 3 with the pressing head 32 faces the inner side of the nut body 1 and contacts with the sealing element 2, and the stop bolt 3 is rotated to move towards the center of the nut body 1, so that the stop element 2 can be pressed to deform.
When the anti-loosening nut 100 in the embodiment is assembled with a bolt, the stopper 2 holds the bolt tightly, the stopper 3 is squeezed by the stopper bolt 3, and the friction force between the stopper 3 and the bolt is further increased, so that the anti-loosening function is effectively achieved.
Example 2
The utility model discloses an embodiment, locking nut 100, as shown in fig. 8 and 9, includes nut body 1, retainer 2 and stop cock 3.
Specifically, the nut body 1 is as shown in fig. 10 to 13. A plurality of arc-shaped grooves 11 are formed in the middle of the inner side wall of the nut body 1, and the positions of the grooves 11 on the inner side of the nut body 1 are different. A threaded hole 12 is arranged on the outer side wall of the nut body 1 corresponding to each groove 11. One end of the threaded hole 12 facing the center of the nut body 1 is communicated with the groove inner area of the groove 11, the opening direction of the threaded hole 12 is the radial direction of the inner ring of the nut body 1 or an included angle of 1-3 degrees with the radial direction, and the diameter of the threaded hole is 1/2-4/5 of the groove top width of the groove 11. An annular step 13 is provided at the junction of the threaded bore 11 and the recess 11. The step 13 has a diameter slightly larger than the diameter of the threaded hole 12. In this embodiment, set up two semicircle recesses 11 on the nut body 1 inner wall, every recess 11 is the semicircle form, and two relative settings of recess 11 are located different planes. Two threaded holes 12 are formed in the nut body 1 corresponding to each groove 11. The opening direction of the threaded hole 12 is the radial direction of the nut body 1.
The stop piece 2 is made of a deformable material such as rubber or nylon, has a cross section similar to the cross section of the groove 11, and is embedded in the groove 11. When assembled, the surface of the stop member 2 on the side facing the center of the nut body 1 is slightly higher than the groove top of the groove 11.
The stop bolt 3 is in a rod shape, has an external thread on the surface thereof which is matched with the internal thread of the threaded hole 12, and is installed in the threaded hole 1. The stop bolt 3 is formed with a screw groove 31 at one end and a press head 32 at the other end for engaging with the step 13. After assembly, the stop bolt 3 with the pressing head 32 faces the inner side of the nut body 1 and contacts with the sealing element 2, and the stop bolt 3 is rotated to move towards the center of the nut body 1, so that the stop element 2 can be pressed to deform.
When the anti-loosening nut 100 in the embodiment is assembled with a bolt, the stopper 2 holds the bolt tightly, the stopper 3 is squeezed by the stopper bolt 3, and the friction force between the stopper 3 and the bolt is further increased, so that the anti-loosening function is effectively achieved. In the present embodiment, the stopper 2 is located at different positions in the nut body 1 to form a plurality of stopping points with different positions.
Example 3
In one embodiment of the present invention, a bolt and nut assembly, as shown in fig. 14, includes a loose nut 100, a washer 200 and a bolt 300. The anti-loosening nut 100 and the washer 200 are installed on the bolt 300 in a penetrating manner.
Specifically, the anti-loosening nut 100 includes a nut body 1, a stopper 2, and a stopper pin 3.
The nut body 1 is provided with an annular groove 11 in the middle of the inner side wall thereof, and a threaded hole 12 is formed in the outer side wall of the nut body 1. One end of the threaded hole 12 facing the center of the nut body 1 is communicated with the groove inner area of the groove 11, the opening direction of the threaded hole 12 is the radial direction of the inner ring of the nut body 1 or an included angle of 1-3 degrees with the radial direction, and the diameter of the threaded hole is 1/2-4/5 of the groove top width of the groove 11. An annular step 13 is provided at the junction of the threaded bore 11 and the recess 11. The step 13 has a diameter slightly larger than the diameter of the threaded hole 12. In this embodiment, six threaded holes 12 are formed in the nut body 1 and are uniformly arranged in a circumferential manner, and the forming direction of the threaded holes 12 is the radial direction of the nut body 1.
The stop piece 2 is made of a deformable material such as rubber or nylon, has a cross section similar to the cross section of the groove 11, and is embedded in the groove 11. When assembled, the surface of the stop member 2 on the side facing the center of the nut body 1 is slightly higher than the groove top of the groove 11.
The stop bolt 3 is in a rod shape, has an external thread on the surface thereof which is matched with the internal thread of the threaded hole 12, and is installed in the threaded hole 1. The stop bolt 3 is formed with a screw groove 31 at one end and a press head 32 at the other end for engaging with the step 13. After assembly, the stop bolt 3 with the pressing head 32 faces the inner side of the nut body 1 and contacts with the sealing element 2, and the stop bolt 3 is rotated to move towards the center of the nut body 1, so that the stop element 2 can be pressed to deform.
In the bolt-nut assembly of the present embodiment, when the anti-loosening nut 100 is mounted on the bolt 300, since the stopper 2 slightly protrudes from the crest of the recess 11, the inner surface thereof is expanded and deformed into the thread groove of the bolt 300. After the nut body 1 is screwed in place, the stop bolt 3 is screwed to move towards the center direction of the nut body 1, the pressure head 32 can press the stop piece 2 to drive the stop piece 2 at the pressing point to further deform and expand towards the direction of the bolt 300, and after the stop bolt 3 is screwed in place, the reaction of the stop piece 3 also plays a role in preventing the stop bolt 3 from rotating. Due to the interference between the stopper 2 and the tumbler 3, the anti-loosening nut 100 is firmly fixed to the bolt 300 and does not loosen or fall off due to factors such as vibration. The stopper 2 can relieve vibration to a certain extent due to the adoption of rubber or nylon materials, and the service life of the bolt and nut assembly is ensured.
Example 4
In one embodiment of the present invention, a bolt and nut assembly, as shown in fig. 15, includes a loose nut 100 and a bolt 300. The anti-loosening nut 100 is mounted on the bolt 300 in a penetrating manner.
Specifically, the anti-loosening nut comprises a nut body 1, a stopper 2 and a stop bolt 3.
The nut body 1 is provided with a plurality of arc-shaped grooves 11 in the middle of the inner side wall, and the positions of the grooves 11 on the inner side of the nut body 1 are different. A threaded hole 12 is arranged on the outer side wall of the nut body 1 corresponding to each groove 11. One end of the threaded hole 12 facing the center of the nut body 1 is communicated with the groove inner area of the groove 11, the opening direction of the threaded hole 12 is the radial direction of the inner ring of the nut body 1 or an included angle of 1-3 degrees with the radial direction, and the diameter of the threaded hole is 1/2-4/5 of the groove top width of the groove 11. An annular step 13 is provided at the junction of the threaded bore 11 and the recess 11. The step 13 has a diameter slightly larger than the diameter of the threaded hole 12. In this embodiment, set up two semicircle recesses 11 on the nut body 1 inner wall, every recess 11 is the semicircle form, and two relative settings of recess 11 are located different planes. Two threaded holes 12 are formed in the nut body 1 corresponding to each groove 11. The opening direction of the threaded hole 12 is the radial direction of the nut body 1.
The stop piece 2 is made of a deformable material such as rubber or nylon, has a cross section similar to the cross section of the groove 11, and is embedded in the groove 11. When assembled, the surface of the stop member 2 on the side facing the center of the nut body 1 is slightly higher than the groove top of the groove 11.
The stop bolt 3 is in a rod shape, has an external thread on the surface thereof which is matched with the internal thread of the threaded hole 12, and is installed in the threaded hole 1. The stop bolt 3 is formed with a screw groove 31 at one end and a press head 32 at the other end for engaging with the step 13. After assembly, the stop bolt 3 with the pressing head 32 faces the inner side of the nut body 1 and contacts with the sealing element 2, and the stop bolt 3 is rotated to move towards the center of the nut body 1, so that the stop element 2 can be pressed to deform.
In the bolt-nut assembly of the present embodiment, when the anti-loosening nut 100 is mounted on the bolt 300, since the stopper 2 slightly protrudes from the crest of the recess 11, the inner surface thereof is expanded and deformed into the thread groove of the bolt 300. After the nut body 1 is screwed in place, the stop bolt 3 is screwed to move towards the center direction of the nut body 1, the pressure head 32 can press the stop piece 2 to drive the stop piece 2 at the pressing point to further deform and expand towards the direction of the bolt 300, and after the stop bolt 3 is screwed in place, the reaction of the stop piece 3 also plays a role in preventing the stop bolt 3 from rotating. Due to the interference between the stopper 2 and the tumbler 3, the anti-loosening nut 100 is firmly fixed to the bolt 300 and does not loosen or fall off due to factors such as vibration. The stopper 2 can relieve vibration to a certain extent due to the adoption of rubber or nylon materials, and the service life of the bolt and nut assembly is ensured.
Claims (10)
1. Locking nut that moves, its characterized in that: comprises that
The nut comprises a nut body, wherein a groove is formed in the inner side wall of the nut body, a threaded hole is formed in the outer side wall of the nut body corresponding to the groove, and the threaded hole is communicated with the groove inner area of the groove;
a stopper fitted in the groove;
and the stop bolt is arranged in the threaded hole in a threaded mode and is in contact with the stop piece, and the stop bolt can be extruded by rotating the stop bolt to deform the stop piece.
2. The anti-loosening nut as claimed in claim 1, wherein: the grooves are continuous or discontinuous.
3. The anti-loosening nut as claimed in claim 1, wherein: the number of the grooves is one or more; when the grooves are multiple, the grooves are located at different positions on the inner wall of the nut body.
4. The anti-loosening nut as claimed in claim 1, wherein: the diameter of the threaded hole is 1/2-4/5 of the width of the groove top.
5. The anti-loosening nut as claimed in claim 1, wherein: the opening direction of the threaded hole is the radial direction of the inner ring of the nut body or the included angle between the opening direction of the threaded hole and the radial direction of the inner diameter of the nut body is 1-3 degrees.
6. The anti-loosening nut as claimed in claim 1, wherein: the side of the stop piece facing the center of the nut body is higher than the groove top.
7. The anti-loosening nut as claimed in claim 1, wherein: and a pressure head is formed at one end of the stop bolt, which is contacted with the stop piece, and the diameter of the pressure head is larger than that of the stop bolt.
8. The anti-loosening nut as claimed in claim 7, wherein: and a step matched with the pressure head is arranged at the joint of the threaded hole and the groove.
9. Bolt and nut subassembly, its characterized in that: the anti-loosening nut, the gasket and the bolt comprise any one of claims 1 to 8, and the anti-loosening nut and the gasket are mounted on the bolt in a penetrating and sleeving mode.
10. The bolt-nut assembly defined in claim 9, wherein: a gasket is also included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921700024.2U CN210686618U (en) | 2019-10-12 | 2019-10-12 | Anti-loosening nut and bolt and nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921700024.2U CN210686618U (en) | 2019-10-12 | 2019-10-12 | Anti-loosening nut and bolt and nut assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686618U true CN210686618U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921700024.2U Active CN210686618U (en) | 2019-10-12 | 2019-10-12 | Anti-loosening nut and bolt and nut assembly |
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| Country | Link |
|---|---|
| CN (1) | CN210686618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946718A (en) * | 2020-08-21 | 2020-11-17 | 三马紧固件(浙江)股份有限公司 | Reinforced anti-loose lock nut |
-
2019
- 2019-10-12 CN CN201921700024.2U patent/CN210686618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946718A (en) * | 2020-08-21 | 2020-11-17 | 三马紧固件(浙江)股份有限公司 | Reinforced anti-loose lock nut |
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| GR01 | Patent grant | ||
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Address after: No. 203, Huancheng East Road, Longchang City, Neijiang City, Sichuan Province Patentee after: Sichuan Dongbo Track Technology Co.,Ltd. Address before: 642150 No. 49 Dongxin Street, Jine Town, Longchang, Neijiang City, Sichuan Province Patentee before: Sichuan Dongbo Track Technology Co.,Ltd. |