CN216812443U - Single-groove lock hoop bolt for connecting automobile pipelines - Google Patents
Single-groove lock hoop bolt for connecting automobile pipelines Download PDFInfo
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- CN216812443U CN216812443U CN202123181891.XU CN202123181891U CN216812443U CN 216812443 U CN216812443 U CN 216812443U CN 202123181891 U CN202123181891 U CN 202123181891U CN 216812443 U CN216812443 U CN 216812443U
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Abstract
The utility model discloses a single-groove lock hoop bolt for connecting automobile pipelines, which comprises a bolt head and a screw rod, wherein the bolt head is provided with an annular abutting surface, a limiting ring groove is arranged on the annular abutting surface, a material extruding lip edge is arranged between the annular abutting surface and the screw rod, the periphery of the material extruding lip edge is provided with a conical surface annular wall, and the conical surface annular wall is connected with the limiting ring groove. The utility model adopts the design of the limiting ring concave with the embedded material extruding matched material extruding lip edge and the pressure welding deformation of the lock collar in tight fit, meets the fastening requirement of the lock collar of the pipeline, and has more obvious circumferential locking stability and anti-seismic loosening performance. The conical surface annular wall is connected with the limiting ring groove, the synchronous forming requirement during thread rolling forming is met, the production cost is reduced, and meanwhile, the limiting ring groove has an extrusion material containing function and ensures locking in place. The design of the stud with a certain taper can improve the stability of crimping and locking. The special rotary threaded rib can meet the requirements of screwing, embedding, locking and stabilizing, and is combined with the lip edge of the extruded material to further improve the anti-seismic and anti-loosening performance.
Description
Technical Field
The utility model relates to a single-groove lock hoop bolt for connecting automobile pipelines, belonging to the technical field of pipeline fasteners.
Background
Fasteners, also known as standard parts in the market, are a general term for a type of mechanical parts used when two or more parts (or components) are fastened together as a single piece. It features various varieties and specifications, different functions and usages, and very high standardization, serialization and universalization degrees. The fastener is the most widely used mechanical basic member and has a large demand.
In the process of connecting and assembling automobile pipelines, the lock hoop bolt for limiting the pipelines needs to be used for cross-connecting and locking the lock hoop through the lock hoop bolt, under the general condition, the lock hoop bolt is provided with a lock hoop head and a thread section, the lock hoop of the pipelines is sleeved on the thread section, the lock hoop is pressed and connected through the lock hoop head so as to realize the fastening operation, the traditional lock hoop head is a flat pressing and connecting surface for pressing and connecting the lock hoop, certain relative degree of freedom exists, the circumferential movement of the lock hoop is easy to occur, in addition, the traditional lock is clamped by clamping force between the lock hoop head and a lock position, the single-groove lock hoop bolt and the lock position are not tightly matched, and the vibration relaxation phenomenon is easy to occur.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, and provides a single-groove lock hoop bolt for automobile pipeline connection, aiming at the problems that the circumferential motion degree exists between the traditional lock hoop bolt and the lock hoop and the lock position is not interfered and is easy to loosen.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the single-groove lock hoop bolt for connecting the automobile pipelines comprises a bolt head and a screw rod, wherein the bolt head is provided with an annular abutting surface facing the screw rod, a limiting ring groove is arranged on the annular abutting surface,
the material extruding lip is arranged between the annular abutting surface and the screw rod, the periphery of the material extruding lip is provided with a conical surface annular wall, the conical surface annular wall is connected with the limiting ring in a concave mode, and the diameter of the conical surface annular wall, facing one end of the screw rod, is larger than the diameter of the conical surface annular wall, facing away from one end of the screw rod.
Preferably, the limiting ring recess comprises an inner ring wall connected with the conical ring wall, an outer ring wall arranged opposite to the inner ring wall, and a side ring wall located between the inner ring wall and the outer ring wall, wherein the side ring wall is an inclined wall surface.
Preferably, the inclined wall surface and the annular abutment surface form an angle of 3 ° ± 0.5 °.
Preferably, the outer annular wall is a wide-mouth peripheral wall having an inclination.
Preferably, circular arc chamfers are respectively arranged between the side annular wall and the outer annular wall as well as between the side annular wall and the inner annular wall.
Preferably, a rotary thread rib is arranged on the screw rod, the rotary thread rib comprises a first thread wall facing one side of the bolt head and a second thread wall facing away from one side of the bolt head, an included angle between the first thread wall and the annular abutting surface is 5 degrees +/-2 degrees, and an included angle between the second thread wall and the annular abutting surface is 43 degrees-46 degrees.
Preferably, the bolt head comprises a screwed end and a bolt pile connected with the screwed end, the annular abutting surface is arranged on the bolt pile, the bolt pile is provided with a conical outer peripheral wall, and the included angle between the conical outer peripheral wall and the annular abutting surface is 40 degrees +/-2 degrees.
Preferably, the screwing end is a screwing cylinder with an isosceles hexagon section.
Preferably, an end face of one side of the screwing end, which faces away from the stud, is provided with an inward screwing groove.
Preferably, the inner concave screw groove is a straight screw groove or a cross screw groove.
The utility model has the following beneficial effects:
1. the limiting ring concave design of the embedded material extruding lip edge matched with the material extruding lip edge and the locking ring in compression joint deformation tight fit is adopted, the requirement for fastening the pipeline locking ring is met, and the anti-seismic locking device has remarkable circumferential locking stability and anti-seismic loosening performance.
2. The conical surface annular wall is connected with the limiting ring concave, the synchronous forming requirement during thread rolling forming is met, the production cost is reduced, and meanwhile, the limiting ring concave also has an extrusion material containing function, so that locking is ensured to be in place.
3. The design of the bolt pile with certain taper can improve the stability of crimping and locking, and the design of a specific screwing end of the special screwing device meets the requirements of different screwing operations.
4. The special rotary threaded rib can meet the requirements of screwing, embedding, locking and stabilizing, and is combined with the material extruding lip edge to further improve the anti-seismic and anti-loosening performance.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of a single-groove lock hoop bolt for automobile pipeline connection according to the present invention.
FIG. 2 is a schematic partial cross-sectional view of a retainer ring recess in a single-groove lock hoop bolt for automotive pipe connection according to the present invention.
FIG. 3 is a partial cross-sectional view of a rotating threaded rib in the single-groove lock hoop bolt for automotive plumbing of the present invention.
Fig. 4 is a schematic structural view of a screwed end in a single-groove lock hoop bolt for automobile pipeline connection according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the relevant portions of the related inventions are shown in the drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The utility model provides a single-groove lock hoop bolt for automobile pipeline connection, which comprises a bolt head 1 and a screw rod 2, wherein the bolt head 1 is provided with an annular abutting surface 3 facing the screw rod 2, and a limiting ring groove 4 is arranged on the annular abutting surface 3, as shown in figures 1 to 4. A material extruding lip edge 5 is arranged between the annular abutting surface 3 and the screw rod 2, the periphery of the material extruding lip edge 5 is provided with a conical annular wall 50, the conical annular wall is concavely connected with the limiting ring, and the diameter of the conical annular wall 50 facing one end of the screw rod 2 is larger than that of the conical annular wall facing away from one end of the screw rod.
The specific implementation process and principle description are as follows:
firstly, a material extruding lip edge 5 is arranged on one side of a bolt head 1 facing a screw rod 2, the material extruding lip edge 5 can be embedded into a locking position in a bolt head 1 spiral locking state, certain spiral locking extrusion is realized, and an embedded extruding material is extruded between a conical surface annular wall 50 and an annular abutting surface 3 to form back-off material extruding locking.
In addition, the design that the conical surface annular wall 50 is connected with the limiting ring groove is adopted, so that the conical surface annular wall 50 and the limiting ring groove can be integrally formed by twisting, accurate avoiding turning is not needed, the limiting ring groove meets the requirement of built-in expansion of extruded materials, the locking surface is smooth and reliable, and locking in place is ensured.
In one embodiment, the retainer ring 4 includes an inner annular wall 41 connected to the tapered annular wall, an outer annular wall 42 disposed opposite the inner annular wall, and a side annular wall 43 disposed between the inner and outer annular walls, the side annular wall being an inclined wall surface.
Specifically, the inclined wall surface makes the outer annular wall 42 form a certain elastic pressure welding force, and the pressure applied to the lock collar along with the axial locking displacement is uniform and controllable in the standard operation process of the matching gap, so that the requirement of buoyancy change of a certain deformation is met, and the locking is ensured to be in place and the matching is reliable and stable.
The inclined wall surface and the annular abutting surface form an included angle of 3 degrees +/-0.5 degrees. The outer annular wall is a wide-mouth peripheral wall with inclination. Arc chamfers are respectively arranged between the side annular wall and the outer annular wall as well as between the side annular wall and the inner annular wall.
The requirement for reliable and stable peripheral compression force is met, the forming requirements of the limiting ring concave 4 and the extruding lip edge 5 in the thread rolling forming process are easily met, and the extruding is convenient in the thread rolling process.
In a specific embodiment, the screw rod 2 is provided with a rotary threaded rib 6, the rotary threaded rib 6 comprises a first threaded wall 61 facing one side of the bolt head and a second threaded wall 62 facing away from one side of the bolt head, the included angle between the first threaded wall and the annular abutting surface is 5 degrees +/-2 degrees, and the included angle between the second threaded wall and the annular abutting surface is 43 degrees-46 degrees.
That is, one side of the second thread wall 62 is used for being squeezed into the lock fixing part, the taper fit is easily realized by adopting the angle range, and the reverse limiting acting force can be formed by adopting the angle range of the first thread wall 61, so that the whole lock hoop bolt is not easy to loosen.
In a particular embodiment, the plug head 1 comprises a screw end 7 and a peg 8 connected to the screw end 7, an annular abutment surface being provided on the peg, the peg 8 being provided with a conical peripheral wall 80, the conical peripheral wall being at an angle of 40 ° ± 2 ° to the annular abutment surface.
Specifically, the stud 8 is embedded to be carried, and the tapered outer peripheral wall 80 is mainly used for adjusting the crimping force of the annular abutting surface, so that the outer peripheral edge of the tapered outer peripheral wall generates a moment arm effect to ensure the stability of crimping and locking of the lock band, and in addition, the tapered outer peripheral wall can also perform screwing avoidance, namely, the outer periphery of the stud 8 does not have excessive circumferential interference with the counter bore of the lock retaining part.
In one embodiment, the screw end 7 is a screw cylinder with an isosceles hexagonal cross section. The end face of one side of the screwing end, which faces away from the stud, is provided with an inward-concave screwing groove 70. The inner concave screwing groove is a straight screwing groove or a cross screwing groove.
The requirements of different screwing operations are met, and the screwing operation can be carried out by adopting an inner hexagonal wrench, a clamping wrench, a screwdriver and the like.
Through the description, the single-groove lock hoop bolt for automobile pipeline connection disclosed by the utility model meets the fastening requirement on the pipeline lock hoop by adopting the design of the embedded material extruding lip matched with the material extruding lip and the limiting ring concave matched with the compression joint deformation of the lock hoop in a tight fit manner, and has relatively remarkable circumferential locking stability and anti-seismic loosening performance. The conical surface annular wall is connected with the limiting ring concave, the synchronous forming requirement during thread rolling forming is met, the production cost is reduced, and meanwhile, the limiting ring concave also has an extrusion material containing function, so that locking is ensured to be in place. The design of the bolt pile with certain taper can improve the stability of crimping and locking, and the design of a specific screwing end of the special screwing device meets the requirements of different screwing operations. The special rotary threaded rib can meet the requirements of screwing, embedding, locking and stabilizing, and is combined with the material extruding lip edge to further improve the anti-seismic and anti-loosening performance.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.
Claims (10)
1. A single groove lock hoop bolt for car pipeline hookup, including bolt head and screw rod, the bolt head possesses towards the annular butt face of screw rod, its characterized in that:
the annular butt joint surface is provided with a limiting ring groove, a material extruding lip edge is arranged between the annular butt joint surface and the screw rod, the periphery of the material extruding lip edge is provided with a conical surface annular wall, the conical surface annular wall is connected with the limiting ring groove, and the diameter of the conical surface annular wall facing one end of the screw rod is larger than the diameter of the conical surface annular wall deviating from one end of the screw rod.
2. The single-groove lock hoop bolt for automobile pipeline connection according to claim 1, characterized in that:
the limiting ring comprises an inner ring wall connected with the conical ring wall, an outer ring wall arranged opposite to the inner ring wall, and a side ring wall positioned between the inner ring wall and the outer ring wall, wherein the side ring wall is an inclined wall surface.
3. The single-groove lock hoop bolt for automobile pipeline connection according to claim 2, characterized in that:
the inclined wall surface and the annular abutting surface form an included angle of 3 degrees +/-0.5 degrees.
4. The single-groove lock hoop bolt for automobile pipeline connection according to claim 2, characterized in that:
the outer annular wall is a wide-mouth peripheral wall with inclination.
5. The single-groove lock hoop bolt for automobile pipeline connection according to claim 2, characterized in that:
and arc chamfers are respectively arranged between the side annular wall and the outer annular wall as well as between the side annular wall and the inner annular wall.
6. The single-groove lock hoop bolt for automobile pipeline connection according to claim 1, characterized in that:
the screw is provided with a rotary thread rib, the rotary thread rib comprises a first thread wall facing one side of the bolt head and a second thread wall departing one side of the bolt head, an included angle between the first thread wall and the annular abutting surface is 5 degrees +/-2 degrees, and an included angle between the second thread wall and the annular abutting surface is 43 degrees-46 degrees.
7. The single-groove lock hoop bolt for automobile pipeline connection according to claim 1, characterized in that:
the bolt head comprises a screwing end and a bolt pile connected with the screwing end, the annular abutting surface is arranged on the bolt pile, the bolt pile is provided with a conical peripheral wall, and the included angle between the conical peripheral wall and the annular abutting surface is 40 degrees +/-2 degrees.
8. The single-groove lock hoop bolt for automobile pipeline coupling according to claim 7, wherein:
the screwing end is a screwing cylinder with an isosceles hexagonal section.
9. The single-groove lock hoop bolt for automobile pipeline coupling according to claim 8, wherein:
and an inward concave screwing groove is formed in the end surface of one side of the screwing end, which deviates from the bolt pile.
10. The single-groove lock hoop bolt for automobile pipeline coupling according to claim 9, wherein:
the concave screwing groove is a straight screwing groove or a cross screwing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123181891.XU CN216812443U (en) | 2021-12-17 | 2021-12-17 | Single-groove lock hoop bolt for connecting automobile pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123181891.XU CN216812443U (en) | 2021-12-17 | 2021-12-17 | Single-groove lock hoop bolt for connecting automobile pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216812443U true CN216812443U (en) | 2022-06-24 |
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ID=82053439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123181891.XU Active CN216812443U (en) | 2021-12-17 | 2021-12-17 | Single-groove lock hoop bolt for connecting automobile pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216812443U (en) |
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2021
- 2021-12-17 CN CN202123181891.XU patent/CN216812443U/en active Active
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