CN214274208U - Locknut and lockfastener - Google Patents
Locknut and lockfastener Download PDFInfo
- Publication number
- CN214274208U CN214274208U CN202022655317.2U CN202022655317U CN214274208U CN 214274208 U CN214274208 U CN 214274208U CN 202022655317 U CN202022655317 U CN 202022655317U CN 214274208 U CN214274208 U CN 214274208U
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- Prior art keywords
- hole
- ring
- nut
- locknut
- loosening
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- Expired - Fee Related
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- 238000003825 pressing Methods 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
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Abstract
The utility model provides a locknut and locking fastener, the nut includes nut body and elasticity locking ring, the nut body is equipped with the through-hole, just the downthehole wall of through-hole is seted up there is the internal thread, the circumference recess has still been seted up along circumference to the inner wall of through-hole, elasticity locking ring is inlayed in the circumference recess, elasticity locking ring with the internal screw thread crest circle is concentric, just the internal diameter of elasticity locking ring with the diameter of crest circle equals. When the nut is screwed into the screw rod, the elastic anti-loosening ring can deform on the matching thread to form a pre-tightening force, so that a resistance force and a torque are generated, the anti-loosening nut is locked at a proper position and can resist vibration, and the problem of loosening of the nut can be prevented. Meanwhile, the structure is simple, the design difficulty is low, the processing is easy, and the cost is low.
Description
The priority of the chinese patent application having application number 202021460380.4 filed on 22/7/2020 by the chinese patent office is claimed in the present application, the entire contents of which are incorporated herein by reference.
Technical Field
The utility model relates to a connecting piece especially relates to a locknut and locking fastener.
Background
Nuts are nuts that are screwed together with bolts or screws to function as fastening parts. The nut is widely applied to mechanical industries such as electric power, rail transit, speed reducers, automobile manufacturing, electric tools, medical equipment, motors and the like. A nut is one of the commonly used components to tightly connect mechanical devices. The nut is matched with a bolt, a screw rod and the like through threads on the inner side of the nut to fix the parts together.
Nuts can be simply classified into hexagonal nuts, locknuts, and slotted nuts, etc. according to their shapes. At present, each part of a common locknut is provided with a staggered cam, and the inclined angle of an internal wedge type design slope is larger than the nut angle of a bolt. When vibration occurs, the convex parts of the locknut are dislocated with each other to generate lifting tension, so that the locking effect is achieved. However, the locknut has the problems of difficult processing, higher manufacturing cost and easy damage in the using process.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings of the prior art, an object of the present invention is to provide a locknut and a lockfastener for solving the problem of easy looseness of the nut in the use process of the fastener in the prior art.
In order to realize above-mentioned purpose and other relevant purposes, the utility model provides a lock nut, the nut includes nut body and elasticity locking ring, the nut body is equipped with the through-hole, just the downthehole wall of through-hole is seted up there is the internal thread, the circumference recess has still been seted up along circumference to the inner wall of through-hole, elasticity locking ring is inlayed in the circumference recess, elasticity locking ring with the internal screw thread crest circle is concentric, just the internal diameter of elasticity locking ring with the diameter of crest circle equals.
Preferably, the circumferential groove is provided at an upper portion of the through hole.
Preferably, the inner wall of the circumferential groove extends upwards to form a thin-wall pressing part; after the elastic anti-loosening ring is installed in the circumferential groove, the thin-wall pressing part can form a pressing ring after being subjected to external force towards the center of the circumferential groove.
Preferably, the circumferential groove is provided at a lower portion of the through hole.
Preferably, the circumferential groove is provided in the middle of the through hole.
Preferably, the outer wall of the elastic anti-loosening ring is bonded to the groove bottom of the circumferential groove.
Preferably, the elastic anti-loose ring is made of nylon.
In order to realize the above and other related objects, the utility model also provides a locking fastener, including any one of the above locknut and screw rod, just the external screw thread has been seted up to the outer wall of screw rod, locknut's internal thread can with external screw thread threaded connection.
As above, the utility model discloses a locknut and check fastener has following beneficial effect:
because the utility model discloses a locknut and locking fastener include the nut includes nut body, elasticity locking ring and internal thread, the nut body is equipped with the through-hole, just the downthehole wall of through-hole is seted up there is the internal thread, the circumference recess has still been seted up along circumference to the inner wall of through-hole, elasticity locking ring is inlayed in the circumference recess, elasticity locking ring with the internal screw thread crest circle is concentric, just the internal diameter of elasticity locking ring with the diameter of crest circle equals. When the nut is screwed into the screw rod, the elastic anti-loosening ring is extruded to deform to form a pre-tightening force, and a resistance force and a torque are generated, so that the anti-loosening nut is locked at a proper position and can resist vibration, and the problem of loosening of the nut can be further prevented. Meanwhile, the structure is simple, the design difficulty is low, the processing is easy, and the cost is low.
Drawings
Fig. 1 is a front view of a nut body according to a first embodiment of the locknut of the present invention.
Fig. 2 is a top view of a nut body according to a first embodiment of the present invention.
Fig. 3 is a schematic view of a first embodiment of the locknut of the present invention.
Fig. 4 is a schematic view of a second embodiment of the locknut of the present invention.
Fig. 5 is an assembly diagram of a second embodiment of the locknut of the present invention and a screw.
Fig. 6 is a schematic view of a third embodiment of the locknut of the present invention.
Fig. 7 is an assembly view of a third embodiment of the locknut of the present invention and a screw.
Fig. 8 is a schematic view of a fifth embodiment of the locknut of the present invention.
Fig. 9 is an assembly diagram of a screw and a fifth embodiment of a locknut according to the present invention.
Fig. 10 is a schematic view of a sixth embodiment of a locknut of the present invention.
Fig. 11 is a schematic view of a locking fastener according to the present invention.
Description of the element reference numerals
1 nut body
11 through hole
12 internal screw thread
13 circumferential groove
14 thin wall pressing part
15 compression ring
16 mounting groove
2 elastic anti-loose ring
22 small cylinder
23 big cylinder
24 step surface
25 bending part
3 screw rod
31 external screw thread
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 to 11. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The utility model provides a locknut, in the use, this locknut's part can take place elastic deformation, forms the pretightning force, produces resistance and moment of torsion, makes locknut locks in the suitable position and can resist vibration, and then can prevent that the nut from taking place not hard up problem. Meanwhile, the structure is simple, the design difficulty is low, the processing is easy, and the cost is low.
Referring to fig. 1 and 3, the inner wall of the circumferential groove 13 extends upward to form a thin-walled pressing portion 14; when the elastic anti-loose ring 2 is installed in the circumferential groove 13, the thin-walled pressing portion 14 can form a pressing ring 15 when an external force is applied to the center of the circumferential groove 13. The compression ring 15 can apply a pressure to the elastic anti-loosening ring 2, and plays a role in fixing the elastic anti-loosening ring 2.
Preferably, the outer wall of the nut body 1 is provided with four mounting grooves 16. When installed, the mounting slot 16 can mate with a wrench to facilitate installation.
Referring to fig. 11, when the nut is screwed into the screw rod 3, when the internal thread is matched with the external thread 31 on the screw rod 3, the elastic anti-loosening ring 2 is elastically deformed to a certain extent when being subjected to an external force, so as to form a pre-tightening force, generate a resistance force and a torque, lock the anti-loosening nut at a proper position and resist vibration, and further prevent the nut from loosening. Meanwhile, the structure is simple, the design difficulty is low, the processing is easy, and the cost is low.
The utility model discloses it is not right the shape of elasticity anti-loosening ring 2 is specifically restricted, as long as elasticity anti-loosening ring 2's inner wall form with the aperture size of nut body 1's through-hole 11 is the same, and works as elasticity anti-loosening ring 2 inlays when in the circumference recess 13, elasticity anti-loosening ring 2's central line with the central line collineation of nut body 1's through-hole 11 can. For convenience of processing and assembly, the elastic anti-loose ring 2 is preferably circular.
The elastic anti-loosening ring 2 is a closed elastic anti-loosening ring 2 or an elastic anti-loosening ring 2 with an opening. When the elastic anti-loose ring 2 is the elastic anti-loose ring 2 with an opening, the opening of the elastic anti-loose ring 2 is not more than one half of the diameter of the elastic anti-loose ring 2.
The utility model discloses it is not right the shape of elasticity anti-loosening ring 2 is specifically restricted, as long as elasticity anti-loosening ring 2's inner wall form with the aperture size of nut body 1's through-hole 11 is the same, and works as elasticity anti-loosening ring 2 inlays when in the circumference recess 13, elasticity anti-loosening ring 2's central line with the central line collineation of nut body 1's through-hole 11 can. For convenience of processing and assembly, the elastic anti-loose ring 2 is preferably circular.
The elastic anti-loosening ring 2 is a closed elastic anti-loosening ring 2 or an elastic anti-loosening ring 2 with an opening. When the elastic anti-loose ring 2 is the elastic anti-loose ring 2 with an opening, the opening of the elastic anti-loose ring 2 is not more than one half of the diameter of the elastic anti-loose ring 2.
Referring to fig. 5, when the nut is screwed into the screw rod 3, the internal thread is matched with the external thread 31 on the screw rod 3, and when the elastic anti-loose ring 2 is subjected to an external force, the elastic anti-loose ring is elastically deformed to a certain degree to form a pre-tightening force, so that a resistance force and a torque are generated, the anti-loose nut is locked at a proper position and can resist vibration, and the problem that the nut is loosened can be prevented. Meanwhile, the structure is simple, the design difficulty is low, the processing is easy, and the cost is low.
Referring to fig. 7, when the nut is screwed into the screw rod 3, when the internal thread is matched with the external thread 31 on the screw rod 3, the elastic anti-loosening ring 2 is elastically deformed to a certain extent when being subjected to an external force, so as to form a pre-tightening force, generate a resistance force and a torque, lock the anti-loosening nut at a proper position and resist vibration, and further prevent the nut from loosening. Meanwhile, the structure is simple, the design difficulty is low, the processing is easy, and the cost is low.
The utility model discloses it is not right the shape of elasticity anti-loosening ring 2 is specifically restricted, as long as elasticity anti-loosening ring 2's inner wall form with the aperture size of nut body 1's through-hole 11 is the same, and works as elasticity anti-loosening ring 2 inlays when in the circumference recess 13, elasticity anti-loosening ring 2's central line with the central line collineation of nut body 1's through-hole 11 can. For convenience of processing and assembly, the elastic anti-loose ring 2 is preferably circular.
The elastic anti-loosening ring 2 is a closed elastic anti-loosening ring 2 or an elastic anti-loosening ring 2 with an opening. When the elastic anti-loose ring 2 is the elastic anti-loose ring 2 with an opening, the opening of the elastic anti-loose ring 2 is not more than one half of the diameter of the elastic anti-loose ring 2.
Embodiment 4, this embodiment is different from the above embodiments in that the outer wall of the elastic anti-loosening ring 2 is bonded to the groove bottom of the circumferential groove 13. When in transportation, the elastic anti-loosening ring 2 is not easy to separate from the nut body 1 because the outer wall of the elastic anti-loosening ring 2 is adhered to the groove bottom of the circumferential groove 13 and adhesive force exists between the outer wall and the groove bottom.
Embodiment 5, referring to fig. 8, this embodiment provides a locknut, and is different from the above embodiments in that the elastic anti-loose ring 2 has a convex cylindrical structure with a through hole in the middle; the small cylinder 22 of the convex cylindrical structure is embedded in the circumferential groove 13. The step surface 24 of the convex cylindrical structure is attached to one end surface of the nut body 1.
When the circumferential groove 13 is arranged at the upper part of the through hole 11, the small cylinder 22 of the convex cylindrical structure is embedded in the circumferential groove 13, and the step surface 24 of the convex cylindrical structure is attached to the upper end surface of the nut body 1.
When the circumferential groove 13 is arranged at the lower part of the through hole 11, the small cylinder 22 of the convex cylindrical structure is embedded in the circumferential groove 13, and the step surface 24 of the convex cylindrical structure is attached to the lower end surface of the nut body 1.
Referring to fig. 9, the large cylinder 23 of the male cylinder structure can function as a washer when assembled with the screw 3 to fix parts, so that the installation is simple.
Embodiment 6, referring to fig. 10, the present embodiment is different from embodiment 5 in that the present embodiment provides a locknut, the small cylinder 22 of the convex cylindrical structure is embedded in the circumferential groove 13, and the step surface 24 of the convex cylindrical structure is attached to the lower end surface of the nut body 1. The outer end of the large cylinder 23 extends towards the other end of the nut body 1 to form a bent part 25, and the bent part 25 is attached to part of the outer wall of the nut body 1.
The utility model provides an elasticity anti-loosening ring 2 is made by nylon.
Referring to fig. 11, the present invention further provides a loose-proof fastener, which comprises a screw 3 and any one of the above-mentioned loose-proof nuts; the outer wall of the screw rod 3 is provided with an external thread 31, and the internal thread of the locknut can be in threaded connection with the external thread 31; when the nut is screwed into the screw rod 3, the elastic anti-loosening ring 2 is extruded to deform to form a pre-tightening force, and resistance and torque are generated, so that the anti-loosening nut is locked at a proper position and can resist vibration, and the problem of loosening of the nut can be prevented. Meanwhile, the structure is simple, the design difficulty is low, the processing is easy, and the cost is low.
To sum up, the utility model relates to a locknut and a locking fastener, which comprises a nut body 1, an elastic locking ring 2 and an internal thread, wherein the nut body 1 is provided with a through hole 11, the inner wall of the through hole 11 is provided with the internal thread 12, the inside of the through hole 11 is also provided with a circumferential groove along the circumferential direction, and the elastic locking ring 2 is embedded in the circumferential groove; when the nut is screwed into the screw rod 3, the elastic anti-loosening ring 2 is extruded to deform to form a pre-tightening force, and resistance and torque are generated, so that the anti-loosening nut is locked at a proper position and can resist vibration, and the problem of loosening of the nut can be prevented. Meanwhile, the structure is simple, the design difficulty is low, the processing is easy, and the cost is low.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a locknut, its characterized in that, the nut includes nut body and elasticity locking ring, the nut body is equipped with the through-hole, just the hole inner wall of through-hole is seted up there is the internal thread, the circumference recess has still been seted up along circumference to the inner wall of through-hole, elasticity locking ring is inlayed in the circumference recess, elasticity locking ring with the internal thread crest circle is concentric, just the internal diameter of elasticity locking ring with the diameter of crest circle equals.
2. The locknut of claim 1, wherein: the circumferential groove is formed in the upper portion of the through hole.
3. The locknut of claim 2, wherein: the inner wall of the circumferential groove extends upwards to form a thin-wall pressing part; after the elastic anti-loosening ring is installed in the circumferential groove, the thin-wall pressing part can form a pressing ring after being subjected to external force towards the center of the circumferential groove.
4. The locknut of claim 1, wherein: the circumferential groove is formed in the lower portion of the through hole.
5. The locknut of claim 1, wherein: the circumferential groove is formed in the middle of the through hole.
6. The locknut according to any one of claims 1 to 5, wherein: the outer wall of the elastic anti-loosening ring is bonded with the groove bottom of the circumferential groove.
7. The locknut according to any one of claims 1 to 5, wherein: the elastic anti-loosening ring is made of nylon.
8. A check fastener characterized by: the anti-loosening nut and the screw rod as claimed in any one of claims 1 to 7, wherein the outer wall of the screw rod is provided with an external thread, and the internal thread of the anti-loosening nut can be in threaded connection with the external thread.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021460380 | 2020-07-22 | ||
| CN2020214603804 | 2020-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214274208U true CN214274208U (en) | 2021-09-24 |
Family
ID=77775715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022655317.2U Expired - Fee Related CN214274208U (en) | 2020-07-22 | 2020-11-17 | Locknut and lockfastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214274208U (en) |
-
2020
- 2020-11-17 CN CN202022655317.2U patent/CN214274208U/en not_active Expired - Fee Related
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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: 20210924 |