CN213628430U - Buckle ring type anti-loosening fastening assembly - Google Patents
Buckle ring type anti-loosening fastening assembly Download PDFInfo
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- CN213628430U CN213628430U CN202022399177.7U CN202022399177U CN213628430U CN 213628430 U CN213628430 U CN 213628430U CN 202022399177 U CN202022399177 U CN 202022399177U CN 213628430 U CN213628430 U CN 213628430U
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Abstract
A fastening ring type anti-loosening fastening assembly belongs to the technical field of mechanical fastening, and is characterized in that a locking fastening ring is additionally arranged on the basis of a bolt and a nut, a first screw fastening surface is arranged on the external screw thread of the screw, the inner wall of the nut is provided with a first nut fastening surface, the outer end of the nut is also provided with a nut lock, the locking fastening ring is a cylindrical structure body, the outer surface of the locking fastening ring is provided with a second nut fastening surface, and the inner surface of the locking fastening ring is provided with a second screw fastening surface; its beneficial effect makes and to close the contact with second nut fastening face and first nut fastening face steadily, simultaneously with second screw rod fastening face and the contact of closing steadily of first screw rod fastening, then inserts the space between outer barrel and the screw rod with the locking buckle circle, reuse instrument is buckled the locking buckle circle to nut lock card bending, and the locking buckle circle just can not loosen like this, also can't take place the dislocation between nut and the screw rod to reach the mesh that prevents to become flexible.
Description
Technical Field
The utility model belongs to the technical field of mechanical fastening, especially a locking fastening components that takes off of buckle ring formula.
Background
A screw is a component for tightly connecting two or more members including a bolt and a nut. The fastening of the nut and the bolt is generally relatively stable. However, if the fastened member is vibrated for a long time, the vibration frequency difference exists between the connecting members, so that each connecting member in the connecting structure can generate a certain displacement, the connection between the nut and the bolt becomes loose, and even falls off, and the stability and the safety of the operation of the connecting structure and even the whole device are affected. Taking the fastening screw and the nut on the train track as an example, when a train passes through the track at a certain speed, the fastening screw and the nut on the track can generate vibration with a certain frequency, so that the fastening screw and the nut can generate certain displacement, and the connection is loosened, therefore, on the old train track, a maintainer needs to overhaul regularly.
The applicant applies for a self-clamping type anti-loosening fastening assembly with application number 2020205972388 on 21/4/2020, and the scheme is that a positioning collar and an anti-loosening clamp spring are additionally arranged on the basis of a bolt and a nut; the bolt is provided with a screw locking groove, the nut is divided into an inner ring wall of an inner layer and an inner ring wall of an outer layer, a longitudinal groove inner snap ring, a flat wall snap ring groove and a longitudinal groove outer resistance ring are sequentially arranged on the inner ring wall of the outer layer from inside to outside, a longitudinal groove in the longitudinal groove inner snap ring is a nut locking groove, the outer side of the positioning snap ring is provided with a nut snap, and the inner side of the positioning snap ring is provided with a screw snap; the nut tenon protrudes upwards and digs inwards to form a clamp spring position; the anti-loosening nut has the beneficial effects that the bolt and the nut are clamped and fixed in a space formed by the nut locking groove and the screw rod locking groove through the positioning clamping ring, and the anti-loosening clamping spring is used for resisting against the positioning clamping ring to prevent the nut and the nut from falling off, so that the purpose of never loosening is realized; the anti-drop snap spring is assembled in the positioning retainer ring and then is installed, so that the nut and the screw rod can be locked at one time; the structure that the various components are mutually held down realizes the connection characteristic of never loosening. In practice, the assembly is prevented from loosening, but still more loosening prevention structures can solve the problem. The patent is an improvement on the technical basis of the patent.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to above-mentioned technical problem, provide an adopt fastener mounting structure of detaining circle lock nut, with detaining circle lock nut and screw rod to reach from the card effect, thereby accomplish the purpose that the locking takes off, improve the security of relevant equipment.
In order to solve the technical problem, the utility model provides a buckle ring type anti-loosening fastening assembly, which comprises a bolt and a nut and is characterized by further comprising a locking buckle ring.
The bolt comprises a nut and a screw fixedly generated on the nut, wherein an external thread is arranged on the screw, and a first screw fastening surface is arranged on the external thread.
The inner surface of the inner layer cylinder is provided with internal threads which are matched with external threads on the screw rod and can be screwed and fastened; the inner diameter of the outer layer cylinder is larger than that of the inner layer cylinder so as to be convenient for placing a locking buckle ring; the outer wall of the outer layer cylinder body has the same structure as that of the inner layer cylinder body, and the inner wall of the outer layer cylinder body is provided with a first nut fastening surface; the outer end of the outer layer cylinder body is further provided with a nut locking clamp, the nut locking clamp is formed by uniformly dividing the outer end ring of the outer layer cylinder body into a plurality of equal parts, then performing partial transverse cutting on each equal part, and longitudinally cutting off one section of each transversely-cut part from the edge of one end, so that the remaining cutting sections form the locking clamp, one end of the locking clamp is directly generated on the outer end of the nut, and the other end of the locking clamp is the suspended nut locking clamp.
The locking buckle ring is a cylindrical structure body, the outer surface of the cylindrical structure body is provided with a second nut fastening surface, the inner surface of the cylindrical structure body is provided with a second screw fastening surface, the shape and the specification of the second nut fastening surface are matched with those of the first nut fastening surface, and the shape and the specification of the second screw fastening surface are matched with those of the first screw fastening surface, so that the locking buckle ring can be stably and seamlessly inserted into a gap between the outer-layer cylinder body of the nut and the screw.
During the use, screw up nut and bolt, aim at the space between outer barrel and the screw rod with the locking clamping ring again, the angle of adjustment nut makes the outer wall of locking clamping ring promptly second nut fastening face and the inner wall of outer barrel promptly first nut fastening face steadily close the contact, make the inner wall of locking clamping ring promptly second screw rod fastening face and the first screw rod fastening on the screw rod external screw thread steadily close the contact simultaneously, then insert the locking clamping ring in the space between outer barrel and the screw rod, reuse instrument is the nut lock card curved buckle locking clamping ring, locking clamping ring just can not loosen like this, also can't take place the misposition between nut and the screw rod, thereby reach the purpose that prevents becoming flexible.
A matched locking structure of external threads of a screw is as follows: the first screw fastening surface is flat straight grains which are uniformly distributed on the outer surface of the external thread of the screw in an annular shape, and a plurality of flat straight grains which are uniformly distributed in an annular shape extend in a virtual shape and intersect to form a regular polygonal prism-shaped flat external thread; the second screw rod fastening surface is a regular polygon-shaped flat wall, namely the inner side of the cross section of the locking buckle ring is a regular polygon, and the longitudinal surface of the inner wall of the locking buckle ring is a flat plane.
The other type of screw external thread matching locking structure is as follows: the first screw fastening surface is longitudinal grooves which are uniformly distributed on the outer surface of the external thread of the screw in an annular shape, and the longitudinal grooves which are uniformly distributed in an annular shape are called screw locking grooves; the second screw rod fastening surface is a screw rod clamping tenon strip which is annularly and uniformly distributed on the inner wall of the locking buckle ring, and the screw rod clamping tenon strip can be stably inserted into the screw rod locking groove.
A nut internal thread matching locking structure is as follows: the first nut fastening surface is a regular polygon-shaped flat wall, namely the inner side of the cross section of the outer-layer cylinder on the nut is a regular polygon, and the longitudinal surface of the inner wall of the outer-layer cylinder is a flat plane; the second nut fastening surface is a regular polygon with a regular polygon cross section, and the longitudinal surface of the outer wall of the locking buckle ring is a straight plane.
The other nut internal thread matching locking structure is as follows: the first nut fastening surface is longitudinal grooves which are uniformly distributed on the inner surface of the outer-layer cylinder in an annular shape, and the longitudinal grooves which are uniformly distributed in an annular shape are called nut locking grooves; the nut tenon strip is firmly closed with the nut locking groove for being cyclic annular evenly laying the nut tenon strip on the locking buckle outer wall, promptly nut tenon strip can be firmly closed and insert in the nut locking groove.
The matched locking structure of the internal thread of the nut is as follows: the first nut fastening surface is longitudinal tenon strips which are uniformly distributed on the inner surface of the outer-layer cylinder in an annular shape, and the longitudinal tenon strips which are uniformly distributed in an annular shape are called nut tenon strips; the nut locking groove on the outer wall of the locking buckle ring is uniformly distributed on the second nut fastening surface in an annular mode, the nut tenon strip is stably combined with the nut locking groove, namely, the nut tenon strip can be stably combined and inserted into the nut locking groove.
The nut lock can be only provided with one, or can be provided with two, three, six or a plurality of nut lock clamps, and preferably three nut lock clamps are uniformly distributed.
The second screw rod fastening surface is uniformly arranged into n strips on the surface of the inner wall of the locking buckle ring and is annular, the second nut fastening surface is uniformly arranged into m strips on the surface of the outer wall of the locking buckle ring and is annular, wherein n and m can be equal or unequal, but no matter whether n and m are equal, the surface of at least one second screw rod fastening surface is aligned with one surface of the second nut fastening surface. Specifically, taking n =8 and m =17 as an example, when the inner surface of the locking buckle ring is an octagonal regular polygon prism-shaped flat wall and the outer surface is a seventeen regular polygon prism-shaped flat wall, the flat wall on one side of the inner surface is aligned in parallel with the flat wall on one side of the outer surface; or when the inner surface of the locking buckle ring is provided with eight uniformly distributed screw clamping tenon strips and the outer surface is provided with seventeen uniformly distributed nut locking grooves, one screw clamping tenon strip on the inner surface is aligned with one nut locking groove on the outer surface; or when the inner surface of the locking buckle ring is eight screw rod clamping tenon strips which are uniformly distributed and the outer surface is a seventeen regular polygon prism-shaped flat wall, one screw rod clamping tenon strip on the inner surface is aligned with one flat wall on the outer surface in parallel.
When the fastening surfaces of the second screws on the locking buckle are uniformly distributed into n and annular, the fastening surfaces of the first screws on the screws are also uniformly distributed into n and annular; when the second nut fastening surfaces on the locking buckle ring are uniformly arranged into m strips and are annular, the first nut fastening surfaces on the nuts are also uniformly arranged into m strips and are annular.
When the nut needs to be maintained, the nut locking clamp is hooked out by a tool, then the locking buckle ring is taken out, and then the nut is screwed out.
The utility model has the advantages that the bolt and the nut are clamped and fixed in the space formed between the outer cylinder of the nut and the external thread of the screw rod through the locking buckle ring, and the locking buckle ring is clamped by the nut lock clamp to prevent the bolt and the nut from falling off, thus realizing never loosening; the structure that each part of this screw subassembly was drawn back each other has realized never loosening connection characteristic, has fundamentally solved the not hard up problem of screwed connection, is fit for using under special conditions such as high-frequency vibration.
Drawings
Fig. 1 is an exploded view of the components in embodiment 1.
Fig. 2 is an exploded view of the components in embodiment 2.
Fig. 3 is an exploded view of the components in embodiment 3.
In the figure: 1. the bolt, 2, the nut, 3, the locking buckle ring, 4, the nut, 5, the screw, 6, the external thread, 7, the first screw fastening surface, 8, the inner layer cylinder, 9, the outer layer cylinder, 10, the internal thread, 11, the first nut fastening surface, 12, the nut locking clamp, 13, the second nut fastening surface, 15, the second screw fastening surface, 16, the straight line, 17, the regular polygon prism-shaped straight external thread, 18, the regular polygon prism-shaped straight wall, 19, the screw locking groove and 20, the screw locking tenon strip.
Detailed Description
The present invention is further described with reference to the following examples, which are intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, a fastening ring type anti-loose fastening assembly is manufactured, which includes a bolt 1 and a nut 2, and a locking fastening ring 3 is specially manufactured in this embodiment.
Conventionally bolt 1 includes nut 4 and the fixed screw rod 5 that generates on nut 4, be equipped with external screw thread 6 on the screw rod 5, this embodiment is in be cyclic annular evenly laid straight line 16 on the external screw thread 6, a plurality of be cyclic annular evenly laid straight line 16 be virtual form extend intersect after can constitute regular polygon prism form straight external screw thread 17, this embodiment has filed eight straight line 16 on each ring external screw thread 6, be cyclic annular evenly laid eight straight line 16 be virtual form extend intersect after constitute regular eight prism form straight external screw thread, this kind of regular eight prism form straight external screw thread is the first screw rod fastening face 7 of this embodiment promptly.
The inner wall of the cylinder of the conventional nut 2 is provided with internal threads 10, the cylinder of the nut 2 is divided into two parts in the embodiment, namely, an inner cylinder 8 and an outer cylinder 9, the inner cylinder 8 is provided with the internal threads 10, and the internal threads 10 are matched with the external threads 6 on the screw 5 and can be screwed and fastened; the inner diameter of the outer layer cylinder 9 is made larger than that of the inner layer cylinder 8, the inner wall of the outer layer cylinder 9 is made into a regular polygon prism-shaped flat wall 18, the inner wall of the outer layer cylinder 9 is made into a regular seventeen prism-shaped flat wall, and the regular seventeen prism-shaped flat wall is the first nut fastening surface 11 of the embodiment. Meanwhile, the outer end of the outer-layer cylinder 9 is also provided with a nut locking clamp 12, the nut locking clamp 12 is used for uniformly dividing the outer end ring of the outer-layer cylinder 9 into a plurality of equal parts, then each equal part is subjected to partial transverse cutting, and then one end edge of each transverse cutting is longitudinally cut off, so that one end of the remaining cutting section is directly generated on the outer end of the nut, and the other end of the remaining cutting section is the suspended nut locking clamp 12.
The locking retainer ring 3 is a cylindrical structure, the outer surface of the cylindrical structure is made into a regular seventeen prism-shaped flat wall matched with the shape and the specification of the first nut fastening surface 11 and is used as a second nut fastening surface 13, the inner surface of the cylindrical structure is made into a regular eight prism-shaped flat wall matched with the shape and the specification of the first screw fastening surface 7 and is used as a second screw fastening surface 15, and the locking retainer ring 3 can be stably and seamlessly inserted into a gap between the outer layer cylinder 9 of the nut 2 and the external thread 6 of the screw 5.
Example 2.
As shown in fig. 2, a fastening ring type anti-loose fastening assembly is manufactured, which comprises a bolt 1, a nut 2 and a locking fastening ring 3.
The bolt 1 comprises a nut 4 and a screw rod 5 fixedly formed on the nut 4, wherein an external thread 6 is arranged on the screw rod 5, and a plurality of longitudinal grooves which are uniformly distributed in an annular shape are formed in the outer surface of the external thread 6 and are called as screw rod locking grooves 19; eight screw locking grooves 19 are uniformly filed on the outer surface of the external thread in an annular shape, and the eight screw locking grooves which are uniformly filed are the first screw fastening surface 7 of the embodiment.
The cylinder body of the nut 2 is divided into an inner cylinder body 8 and an outer cylinder body 9, an internal thread 10 is arranged on the inner cylinder body 8, and the internal thread 10 is matched with the external thread 6 on the screw rod 5; will the internal diameter of outer barrel 9 makes to be greater than the internal diameter of inlayer barrel 8 dig the inner wall of outer barrel 9 and establish vertical slot, be called nut locking groove, this embodiment is in dig to establish seventy nut locking grooves on the inner wall of outer barrel for evenly distributed form, this kind of evenly distributed's seventy nut locking groove is the first nut fastening face 11 of this embodiment promptly. Meanwhile, the outer end of the outer-layer cylinder body is also provided with a nut locking clamp 12, the nut locking clamp 12 is used for uniformly dividing the outer end ring of the outer-layer cylinder body into a plurality of equal parts, then each equal part is subjected to partial transverse cutting, and then one end edge of each transverse cutting is longitudinally cut off to form one section, so that one end of the remaining cutting section is directly generated at the outer end of the nut, and the other end of the remaining cutting section is the suspended nut locking clamp 12.
The locking buckle ring 3 is a cylindrical structure, in the embodiment, seventeen nut tenon strips which are uniformly distributed and matched with the shape and the specification of the first nut fastening surface 11 are made on the outer surface of the cylindrical structure to serve as a second nut fastening surface 13, then eight screw bolt tenon strips which are uniformly distributed and matched with the shape and the specification of the first screw bolt fastening surface 7 are made on the inner surface of the cylindrical structure to serve as a second screw bolt fastening surface 15, and the locking buckle ring 3 can be stably and seamlessly inserted into a gap between the outer side cylinder 9 wall of the nut 2 and the screw bolt 5.
Example 3.
As shown in fig. 3, a fastening ring type anti-loose fastening assembly is manufactured, which comprises a bolt 1, a nut 2 and a locking fastening ring 3.
The bolt 1 includes nut 4 and the fixed screw rod 5 that generates on nut 4, be equipped with external screw thread 6 on the screw rod 5, be the annular straight line 16 that has evenly laid on the external screw thread 6, a plurality of is the annular straight line 16 that evenly lays and can constitute the straight external screw thread 17 of regular polygon prism form after the virtual form extends and intersects, eight straight lines have been filed on each ring thread to this embodiment, eight straight lines that are the annular evenly laid are the virtual form and extend and intersect the back and constitute the straight external screw thread of regular eight prism form, and this kind of straight external screw thread of regular eight prism form is the first screw rod fastening face 7 of this embodiment promptly.
The cylinder body of the nut 2 is divided into an inner cylinder body 8 and an outer cylinder body 9, an internal thread 10 is arranged on the inner cylinder body 8, and the internal thread 10 is matched with the external thread 6 on the screw rod 5; the inner diameter of the outer-layer cylinder 9 is made to be larger than that of the inner-layer cylinder 8, longitudinal grooves called as nut locking grooves are dug in the inner wall of the outer-layer cylinder 9, seventeen nut locking grooves are dug in the inner wall of the outer-layer cylinder 9 in an evenly distributed mode, and the seventeen nut locking grooves which are evenly distributed are the first nut fastening surface 11 of the embodiment. Meanwhile, the outer end of the outer-layer cylinder 9 is also provided with a nut locking clamp 12, the nut locking clamp 12 is used for uniformly dividing the outer end ring of the outer-layer cylinder 9 into a plurality of equal parts, then each equal part is subjected to partial transverse cutting, and then one end edge of each transverse cutting is longitudinally cut off, so that one end of the remaining cutting section is directly generated on the outer end of the nut, and the other end of the remaining cutting section is the suspended nut locking clamp 12.
The locking retainer 3 is a cylindrical structure, in this embodiment, seventy nut tenon strips which are uniformly distributed and matched with the shape and specification of the first nut fastening surface 11 are made on the outer surface of the cylindrical structure to serve as a second nut fastening surface 13, and then the inner surface of the cylindrical structure is made into a regular octagonal prism-shaped flat wall matched with the shape and specification of the first screw fastening surface 7 to serve as a second screw fastening surface 15, so that the locking retainer 3 can be stably and seamlessly inserted into a gap between the outer cylinder 9 of the nut 2 and the screw 5.
During the use, screw up nut 2 and bolt 1, aim at the space between outer barrel 9 and the screw rod 5 with locking clamping ring 3 again, the angle of adjustment nut 2 makes the outer wall of locking clamping ring 3 be second nut fastening face 13 and the inner wall of outer barrel 9 be first nut fastening face 11 steady contact, make the inner wall of locking clamping ring 3 be second screw rod fastening face 15 and the first screw rod fastening face 7 steady contact on the external screw thread 6 of screw rod 5 simultaneously, then insert locking clamping ring 3 in the space between outer barrel 9 and screw rod 5, reuse instrument is pressed the nut lock card 12 and is buckled locking clamping ring 3, locking clamping ring 3 just can not loosen like this, also can't take place the dislocation between nut 2 and the screw rod 5, thereby reach the mesh that prevents becoming flexible.
When the maintenance is needed, the nut locking clamp 12 is hooked out by a tool, then the locking buckle ring 3 is taken out, and then the nut 2 is screwed out.
Claims (9)
1. A fastening ring type anti-loosening fastening assembly comprises a bolt and a nut and is characterized by further comprising a locking fastening ring;
the bolt comprises a nut and a screw fixedly formed on the nut, the screw is provided with an external thread, and the external thread is provided with a first screw fastening surface;
the inner surface of the inner layer cylinder is provided with internal threads which are matched with the external threads on the screw rod; the inner diameter of the outer layer cylinder body is larger than that of the inner layer cylinder body; the inner wall of the outer layer cylinder body is provided with a first nut fastening surface; the outer end of the outer layer cylinder body is also provided with a nut locking clamp, the nut locking clamp is used for uniformly dividing the outer end ring of the outer layer cylinder body into a plurality of equal parts, then, each equal part is subjected to partial transverse cutting, and then, each transverse cutting part is longitudinally cut off from the edge of one end, so that one end of the rest cutting section is directly generated on the outer end of the nut, and the other end of the rest cutting section is a suspended nut locking clamp;
the locking fastening ring is a cylindrical structure body, the outer surface of the cylindrical structure body is provided with a second nut fastening surface, the inner surface of the cylindrical structure body is provided with a second screw fastening surface, the shape and the specification of the second nut fastening surface are matched with those of the first nut fastening surface, and the shape and the specification of the second screw fastening surface are matched with those of the first screw fastening surface, so that the locking fastening ring can be stably and seamlessly inserted into a gap between the outer cylindrical wall of the nut and the screw.
2. The buckle type anti-loosening fastening assembly according to claim 1, wherein the first screw fastening surface is straight threads uniformly distributed in a ring shape on the outer surface of the external screw thread of the screw, and a plurality of straight threads uniformly distributed in a ring shape extend in a virtual shape to intersect to form a regular polygonal prism-shaped straight external screw thread; the second screw rod fastening surface is a regular polygon-shaped flat wall, namely the inner side of the cross section of the locking buckle ring is a regular polygon, and the longitudinal surface of the inner wall of the locking buckle ring is a flat plane.
3. The buckle type anti-loose fastening assembly as claimed in claim 1, wherein the first screw fastening surface is a longitudinal groove uniformly distributed in a ring shape on the outer surface of the external thread of the screw, and the plurality of longitudinal grooves uniformly distributed in a ring shape are called screw locking grooves; the second screw rod fastening surface is a screw rod clamping tenon strip which is annularly and uniformly distributed on the inner wall of the locking buckle ring, and the screw rod clamping tenon strip can be stably inserted into the screw rod locking groove.
4. The retainer type loosening-preventing fastening assembly according to claim 2 or 3, wherein the first nut fastening surface is a regular polygonal flat wall, i.e. the inner side of the cross section of the outer cylinder is a regular polygon, and the longitudinal surface of the inner wall of the outer cylinder is a flat plane; the second nut fastening surface is a regular polygon with a regular polygon cross section, and the longitudinal surface of the outer wall of the locking buckle ring is a straight plane.
5. The buckle type anti-loose fastening assembly as claimed in claim 2 or 3, wherein the first nut fastening surface is a longitudinal groove uniformly distributed in a ring shape on the inner surface of the outer cylinder, and the plurality of longitudinal grooves uniformly distributed in a ring shape are called nut locking grooves; the second nut fastening surface is a nut tenon strip which is annularly and uniformly distributed on the outer wall of the locking buckle ring, and the nut tenon strip is stably combined with the nut locking groove.
6. The buckle type anti-loose fastening assembly as claimed in claim 2 or 3, wherein the first nut fastening surface is a longitudinal tenon strip uniformly distributed in a ring shape on the inner surface of the outer cylinder, and a plurality of longitudinal tenon strips uniformly distributed in a ring shape are called nut tenon strips; the second nut fastening surface is a nut locking groove which is annularly and uniformly distributed on the outer wall of the locking buckle ring, and the nut clamping tenon strip is stably combined with the nut locking groove.
7. The retainer type anti-loosening fastening assembly according to claim 6, wherein three nut locking clips are uniformly distributed.
8. The retainer type anti-loosening fastening assembly according to claim 7, wherein the second screw fastening surfaces are uniformly arranged in n number and are annular on the inner wall surface of the locking retainer, the second nut fastening surfaces are uniformly arranged in m number and are annular on the outer wall surface of the locking retainer, and at least one surface of the second screw fastening surface is aligned with one surface of the second nut fastening surface.
9. The retainer type anti-loosening fastening assembly according to claim 8, wherein the second screw fastening surfaces of the locking retainer are uniformly arranged in n and annular shapes, and the first screw fastening surfaces of the screws are also uniformly arranged in n and annular shapes; when the second nut fastening surfaces on the locking buckle ring are uniformly arranged into m strips and are annular, the first nut fastening surfaces on the nuts are also uniformly arranged into m strips and are annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022399177.7U CN213628430U (en) | 2020-10-26 | 2020-10-26 | Buckle ring type anti-loosening fastening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022399177.7U CN213628430U (en) | 2020-10-26 | 2020-10-26 | Buckle ring type anti-loosening fastening assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213628430U true CN213628430U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022399177.7U Active CN213628430U (en) | 2020-10-26 | 2020-10-26 | Buckle ring type anti-loosening fastening assembly |
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| Country | Link |
|---|---|
| CN (1) | CN213628430U (en) |
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2020
- 2020-10-26 CN CN202022399177.7U patent/CN213628430U/en active Active
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Effective date of registration: 20230906 Address after: No. 3001, Tianyu East Road, Weixian Economic Development Zone, Handan City, Hebei Province 056800 Patentee after: Hebei CRRC Luxing Anti-locking Technology Co.,Ltd. Address before: 409900 Chongqing Xiushan Tujia and Miao Autonomous County Industrial Park small and medium sized Enterprise Incubation Park with a warehouse next to Du Chuang Technology Co.,Ltd. Patentee before: Liu Qichao |