CN219587948U - High-strength thin locknut - Google Patents
High-strength thin locknut Download PDFInfo
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- CN219587948U CN219587948U CN202321161099.4U CN202321161099U CN219587948U CN 219587948 U CN219587948 U CN 219587948U CN 202321161099 U CN202321161099 U CN 202321161099U CN 219587948 U CN219587948 U CN 219587948U
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- nut body
- screw rod
- ring
- wall
- locknut
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Abstract
The utility model discloses a high-strength thin locknut, and aims to provide a high-strength thin locknut which is high in connection tightness, high in integral strength, and not easy to loosen and break. The nut comprises a nut body and a screw rod, wherein an external thread is arranged on the screw rod, an internal thread matched with the screw rod is arranged on the inner wall of the nut body, a limiting groove is formed in the inner wall of the nut body, a locking ring is clamped in the limiting groove, the inner diameter of the locking ring is smaller than the diameter of the screw rod, a fastening ring is connected to the end face of the nut body in a threaded manner, and the fastening ring is in interference fit with the nut body. The utility model has the beneficial effects that: the nut and the screw are high in connection tightness, and relative displacement caused by looseness between the nut and the screw is prevented; the integral strength is enhanced, and the structural fracture is prevented; the assembly efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of nuts, in particular to a high-strength thin locknut.
Background
The nut adopts pretightening force generally, and elastic deformation of the threads is utilized to increase friction force between the internal thread and the external thread, so that the nut is prevented from loosening, or an elastic gasket is utilized to increase friction force between the internal thread and the external thread, but after long-time use, pretightening force of the nut or elastic force of the elastic gasket is gradually reduced, so that the nut is loosened.
The utility model relates to a locknut assembly, which comprises a nut and a tightening ring gasket which are matched for use, and the utility model relates to a Chinese patent grant publication number CN 218294151U, and the grant publication date 2023, and the date 01 and 13. The nut comprises a nut body and a thin-wall wing ring which are integrally structured, and the internal thread of the nut is formed by one-step processing. The outer circle of the thin-wall wing ring is in interference fit with the inner hole of the tightening ring gasket, and the inner hole of the tightening ring gasket can force the thin-wall wing ring to elastically deform so as to realize the anti-loosening of the nut. In order to increase the deformability of the thin-wall wing ring, symmetrically and uniformly distributed notches can be processed on the thin-wall wing ring, the notches extend to the connecting surface of the nut body and the thin-wall wing ring, and the width is not smaller than the diameter difference between the outer circle of the thin-wall wing ring and the inner hole of the tightening ring gasket. The technical scheme has the following defects: 1. when the nut body is connected with the screw rod, the nut body is connected with the screw rod through metal, and relative movement is easy to generate in use, so that relative movement is generated; 2. the thin-wall wing ring is vertically connected with the nut body, so that the connection integrity of the nut body and the thin-wall wing ring is reduced, and the thin-wall wing ring is easy to fatigue and even break due to the fact that the thin-wall wing ring is forced when the tightening ring gasket is connected.
In summary, the nut has low connection tightness and reduced integrity strength, which leads to easy loosening and breakage.
Disclosure of Invention
The utility model provides a high-strength thin locknut which is high in connection tightness, high in integral strength and not easy to loosen and break, and aims to overcome the defects that the nut in the prior art is low in connection tightness and low in integral strength, and is easy to loosen and break.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a thin locknut of high strength, includes nut body and screw rod, is equipped with the external screw thread on the screw rod, is equipped with the internal thread with screw rod looks adaptation on the nut body inner wall, is equipped with the spacing groove on the inner wall of nut body, and the joint has the locking ring in the spacing groove, and the internal diameter of locking ring is less than the diameter of screw rod, and threaded connection has the fastening ring on the terminal surface of nut body, fastening ring and nut body interference fit.
The screw is connected to the screw in the screw of nut body, be equipped with the spacing groove on the screw inner wall of nut body, the spacing groove is the locking ring on the nut body inner wall, the locking ring is by the deformable structure that rubber material made, the internal strength of locking ring is less than the diameter of screw rod, make the locking ring produce the frictional force that warp and then increase the connection in nut body and screw rod are connected, make the screw rod be difficult for disengaging the nut body, be equipped with the holding ring on the terminal surface of nut body in addition, the holding ring passes through interference fit threaded connection on the nut body terminal surface, make the nut body part in the holding ring inwards tighten up, and then make the tight degree that the nut body is connected with the screw rod, the middle part at the nut terminal surface is connected to annular holding ring simultaneously, prevent to reduce the wholeness of nut, make the wholeness intensity of nut improve, reach and improve nut and screw rod connection tight degree prevent not hard up and wholeness intensity reinforcing prevent cracked effect.
Preferably, the end face of the nut body is provided with a mounting groove, the mounting groove is provided with external threads, the inner wall of the fastening ring is provided with internal threads, the fastening ring is in threaded connection with the mounting groove, and the structural shape of the fastening ring is wedge-shaped. The terminal surface of nut body has set up mounting groove, mounting groove is the annular recess of nut body terminal surface, be equipped with the external screw thread on mounting groove's the cell wall and place in on the cell wall that is close to screw rod one side, be equipped with the internal screw thread on the inner wall of holding ring and place in on the interior circular wall face, the structural shape of holding ring is wedge shape simultaneously, and then be convenient for the holding ring get into mounting groove, make the nut body receive inwards extrusion force when simultaneously along with holding ring screw thread screw in mounting groove to diameter is greater than mounting groove diameter department, and then inwards apply a force to the nut body of mounting groove inboard part, ensure the wholeness of nut body simultaneously with the meshing degree of screw rod improve, and then the locking degree improves.
Preferably, mounting grooves are formed in both end faces of the nut body. The fastening rings are connected to the two end faces of the nut body through the mounting grooves, so that the fastening rings are arranged at the two ends of the nut body and the screw is locked, and the connection tightness is improved.
Preferably, the nut body is provided with deformation grooves, the deformation grooves are communicated with the inner wall of the nut body and the inner wall of the mounting groove, and at least two deformation grooves are arranged relatively uniformly. The deformation groove is formed in the end face of a part of the inner side of the mounting groove in the nut body, so that the fastening ring is kept in a deformation space for inwards deforming the compression screw when the fastening ring is applied with force inwards, and at least two deformation grooves are formed in the deformation groove and are oppositely arranged, so that the damage of the structure is prevented, and meanwhile, the compression degree of the nut body to the screw inwards is guaranteed.
Preferably, the inner wall of the locking ring is provided with a plurality of anti-skid grooves, and the arrangement direction of the anti-skid grooves is the same as the arrangement direction of the external threads of the screw rod. The anti-skid groove is arranged on the inner wall of the locking ring, the structural shape of the anti-skid groove is the same as that of the external thread of the screw rod, so that the connection strength between the locking ring and the screw rod is increased when the locking ring is in deformation interference fit, and the connection tightness of the nut body and the screw rod is improved.
Preferably, the nut body is provided with a guide surface, the guide surface is arranged at a screw hole port of the threaded body, and the guide surface is an inclined chamfer. The guide surface is an inclined surface chamfer at the joint of the end surface of the nut body and the inner wall, so that the screw rod is assembled with the nut body rapidly and the installation efficiency is improved.
Preferably, the nut body is provided with a fixing groove, a fixing ring is embedded in the fixing groove, and the fixing ring is sleeved with the nut body. The fixed ring is sleeved on the outer surface of the nut body through the fixed groove, the fixed groove limits the fixed ring to be fixed on the same level close to the mounting groove, and then the outer side of the nut body is stably hooped by one circle when the fastening ring enters the mounting groove, so that the integral strength of the nut body and the tightness of the inward locking screw are improved.
The beneficial effects of the utility model are as follows: the nut and the screw are high in connection tightness, and relative displacement caused by looseness between the nut and the screw is prevented; the integral strength is enhanced, and the structural fracture is prevented; the assembly efficiency is improved.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is a schematic structural view of the nut body;
figure 4 is a cross-sectional view of the locking ring.
In the figure: 1. the nut comprises a nut body, a screw rod, a limiting groove, a locking ring, a fastening ring, a mounting groove, a deformation groove, an anti-skid groove, a guide surface, a fixing groove and a fixing ring.
Description of the embodiments
Examples
As shown in fig. 1 and 2, a high-strength thin locknut comprises a nut body 1 and a screw rod 2, wherein an external thread is arranged on the screw rod 2, an internal thread matched with the screw rod 2 is arranged on the inner wall of the nut body 1, a limiting groove 3 is arranged on the inner wall of the nut body 1, a locking ring 4 is clamped in the limiting groove 3, the inner diameter of the locking ring 4 is smaller than the diameter of the screw rod 2, a fastening ring 5 is connected with the end surface of the nut body 1 in a threaded manner, and the fastening ring 5 is in interference fit with the nut body 1.
As shown in fig. 2 and 3, the end face of the nut body 1 is provided with a mounting groove 6, the mounting groove 6 is provided with external threads, the inner wall of the fastening ring 5 is provided with internal threads, the fastening ring 5 is in threaded connection with the mounting groove 6, and the structural shape of the fastening ring 5 is wedge-shaped. The two end faces of the nut body 1 are provided with mounting grooves 6.
As shown in fig. 3, the nut body 1 is provided with deformation grooves 7, the deformation grooves 7 are communicated with the inner wall of the nut body 1 and the inner wall of the installation groove 6, and at least two deformation grooves 7 are arranged relatively uniformly.
As shown in fig. 4, the inner wall of the locking ring 4 is provided with a plurality of anti-skid grooves 8, and the arrangement direction of the anti-skid grooves 8 is the same as the arrangement direction of the external threads of the screw rod 2.
As shown in fig. 2, the nut body 1 is provided with a guide surface 9, the guide surface 9 is arranged at a screw hole port of the screw body, and the guide surface 9 is an inclined chamfer. The nut body 1 is provided with a fixing groove 10, a fixing ring 11 is embedded in the fixing groove 10, and the fixing ring 11 is sleeved with the nut body 1.
As shown in fig. 1-4: the upper end and the lower end of the nut body 1 are both in threaded connection with the fastening ring 5, so that the two ends of the nut body 1 are both inwards pressed by the fastening ring 5, wherein the two fixing rings 11 are respectively arranged at the upper end and the lower end of the side surface of the nut body and are at the same level with the fastening ring 5, the fastening ring 5 mainly applies force outwards during application of force, and simultaneously generates a reaction force inwards under the fixation of the fixing rings 11, so that the inner side part of the nut body 1 can be inwards pressed under the loosening of the deformation groove 7, and the connection tightness of the nut body 1 and the screw rod 2 is improved.
When the nut is used, the screw rod 2 is rotated into the nut body 1 until the screw rod 1 passes through the nut body 1, wherein the locking ring 4 is arranged between the bottoms of the limiting grooves 3 to deform, so that the connection friction between the screw rod 2 and the nut body 1 is improved, and further, the relative displacement between the nut body 1 and the screw rod 2 is prevented. The fastening ring 5 at one side is rotated, so that the fastening ring 5 is screwed into the mounting groove 6 until the fastening ring 5 generates pressure on the mounting groove 6, and one end of the nut body 1 is stressed inwards to press the screw rod 2; the fastening ring 5 at the other side is rotated, so that the fastening ring 5 is screwed into the mounting groove 6 until the locking ring 5 generates pressure on the mounting groove 6, the other end of the nut body 1 is stressed inwards to compress the screw rod 2, and the connection strength between the nut body 1 and the screw rod 2 is improved.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. The utility model provides a thin locknut of high strength, its characterized in that, including nut body (1) and screw rod (2), be equipped with the external screw thread on screw rod (2), be equipped with the internal thread with screw rod (2) looks adaptation on the inner wall of nut body (1), be equipped with spacing groove (3) on the inner wall of nut body (1), joint has locking ring (4) in spacing groove (3), the internal diameter of locking ring (4) is less than the diameter of screw rod (2), threaded connection has fastening ring (5) on the terminal surface of nut body (1), fastening ring (5) and nut body (1) interference fit.
2. The high-strength thin locknut according to claim 1, wherein the end face of the nut body (1) is provided with a mounting groove (6), the mounting groove (6) is provided with external threads, the inner wall of the fastening ring (5) is provided with internal threads, the fastening ring (5) is in threaded connection with the mounting groove (6), and the structural shape of the fastening ring (5) is wedge-shaped.
3. A high strength thin locknut as claimed in claim 2, wherein mounting grooves (6) are provided on both end surfaces of the nut body (1).
4. A high-strength thin locknut according to claim 3, wherein the nut body (1) is provided with deformation grooves (7), the deformation grooves (7) are communicated with the inner groove wall of the mounting groove (6) and the inner wall of the nut body (1), and the deformation grooves (7) are at least provided with two deformation grooves and are relatively uniformly arranged.
5. The high-strength thin locknut according to claim 1, wherein anti-slip grooves (8) are formed in the inner wall of the locking ring (4), a plurality of anti-slip grooves (8) are formed, and the arrangement direction of the anti-slip grooves (8) is the same as the arrangement direction of external threads of the screw rod (2).
6. The high-strength thin locknut as claimed in claim 1, wherein the nut body (1) is provided with a guide surface (9), the guide surface (9) is arranged at a screw hole port of the threaded body, and the guide surface (9) is a bevel chamfer.
7. The high-strength thin locknut as claimed in claim 6, wherein the nut body (1) is provided with a fixing groove (10), the fixing groove (10) is embedded with a fixing ring (11), and the fixing ring (11) is sleeved with the nut body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321161099.4U CN219587948U (en) | 2023-05-15 | 2023-05-15 | High-strength thin locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321161099.4U CN219587948U (en) | 2023-05-15 | 2023-05-15 | High-strength thin locknut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219587948U true CN219587948U (en) | 2023-08-25 |
Family
ID=87689988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321161099.4U Active CN219587948U (en) | 2023-05-15 | 2023-05-15 | High-strength thin locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219587948U (en) |
-
2023
- 2023-05-15 CN CN202321161099.4U patent/CN219587948U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |