CN219840919U - Combined anti-return washer and nut connecting pair - Google Patents
Combined anti-return washer and nut connecting pair Download PDFInfo
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- CN219840919U CN219840919U CN202320708441.1U CN202320708441U CN219840919U CN 219840919 U CN219840919 U CN 219840919U CN 202320708441 U CN202320708441 U CN 202320708441U CN 219840919 U CN219840919 U CN 219840919U
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- 238000001125 extrusion Methods 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a combined type anti-return washer and a nut connecting pair, and relates to the technical field of nuts. The utility model comprises a stud, a washer body sleeved on the peripheral side surface of the stud and a nut body movably connected to the side wall of the stud, wherein an upper retaining component is arranged above the washer body, and a lower retaining component is arranged below the washer body; the upper retaining assembly comprises a clamping column, a connecting column, an inner connecting seat, an outer connecting seat and a spring, wherein the top of the stud is fixedly connected with a bolt cap, a clamping groove is formed in the bottom of the bolt cap, the clamping column is fixedly connected to the top of the gasket body, a connecting hole is formed in the side wall of the bolt cap, the connecting hole is communicated with the clamping groove, the connecting column penetrates through and is arranged in the connecting hole, and the outer connecting seat is fixedly connected to the connecting column at a section outside the bolt cap. According to the utility model, through the designed upper retaining component and lower retaining component, the anti-loosening effect of the nut connecting pair is greatly enhanced; normal operation of the nut connecting pair is enhanced.
Description
Technical Field
The utility model belongs to the technical field of nuts, and particularly relates to a combined type anti-return washer and a nut connecting pair.
Background
Screw connections are often required in life but some parts are loosened due to various reasons such as vibration, for example: the precision grades of the bolts and the nuts are not enough, and enough self-locking force is not generated; the resonance generates concentric force to loosen the bolt and the nut; machining errors; in the case of a plurality of bolts (e.g., flanged connections), the bolts may have unequal pretightening moments. Thereby affecting the connection performance and further affecting the use.
In the working environment of high-strength impact load, high-strength alternating load and severe temperature change, the problem of self-loosening can be generated in the connection of bolts and nuts, and the loosening prevention gasket can prevent the nut connection pair from loosening to a certain extent, so that the normal operation of the nut connection pair is ensured.
However, in the existing nut connection pair, the locking connection pair of the nut is generally poor in anti-loosening effect, loosening still occurs, frequent fastening is needed to maintain normal operation of the machine, and therefore, a combined anti-loosening washer and nut connection pair are provided.
Disclosure of Invention
The utility model aims to provide a combined type anti-loosening washer and a nut connecting pair, which solve the problems that in the existing nut connecting pair, the locking connecting pair of a nut is poor in general anti-loosening effect, loosening still occurs, and frequent fastening is needed to maintain normal operation of a machine.
In order to solve the technical problems, the utility model is realized by the following technical scheme: the combined type anti-return gasket and nut connecting pair comprises a stud, a gasket body sleeved on the peripheral side surface of the stud and a nut body movably connected to the side wall of the stud, wherein an upper anti-return assembly is arranged above the gasket body, and a lower anti-return assembly is arranged below the gasket body;
the upper retaining component comprises a clamping column, a connecting column, an inner connecting seat, an outer connecting seat and a spring, wherein the top of the stud is fixedly connected with a bolt cap, the bottom of the bolt cap is provided with a clamping groove, the clamping column is fixedly connected to the top of the gasket body, the side wall of the bolt cap is provided with a connecting hole, the connecting hole is communicated with the clamping groove, the connecting column penetrates through and is arranged in the connecting hole, the outer connecting seat is fixedly connected to the connecting column at a section outside the bolt cap, the inner connecting seat is fixedly connected to the other end of the connecting column, one end of the spring is fixedly connected with the inner connecting seat, and the other end of the spring is fixedly connected with the groove side wall of the clamping groove;
the lower retaining assembly comprises a clamping ring, a clamping seat and an elastic extrusion block, wherein the clamping ring is fixedly connected to the bottom of the gasket body, the clamping seat is fixedly connected to the top of the nut body, a clamping groove is formed in the top of the clamping seat, and the elastic extrusion block is fixedly connected to the bottom wall of the clamping groove.
Preferably, the side wall of the clamping column is provided with a connecting groove, and the diameter of the connecting groove is equal to that of the inner connecting seat.
Preferably, the upper retaining assemblies have four groups, and the four groups of upper retaining assemblies are symmetrically arranged about the center of the stud.
Preferably, the bottom and the side wall of the nut body are provided with round corners, so that the nut body is conveniently screwed in threaded connection with the stud, and collision damage during transportation and storage is avoided.
Preferably, the longitudinal section of the clamping ring is a right triangle, and the longitudinal section of the elastic extrusion block is an inverted right triangle.
Preferably, the thickness of the clamping ring is equal to the depth of the clamping groove, so that the clamping ring can be in meshed connection with the clamping seat, and the stopping function of the gasket body and the nut body is achieved.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, through the designed upper retaining component and lower retaining component, the outer connecting seat is pulled to enable the inner connecting seat to extrude the spring, then the clamping column is placed in the clamping groove, the force applied to the outer connecting seat is removed, and under the elastic force of the spring, the inner connecting seat is clamped with the connecting groove on the side wall of the clamping column, so that the gasket body is firmly connected with the stud; then the nut body is screwed, so that the clamping seat moves upwards along with the nut body, and in the moving process, the clamping ring extrudes an elastic extrusion block fixedly connected with the inside of the clamping groove, so that the elastic extrusion block deforms, and interference fit is formed between the elastic extrusion block and the elastic extrusion block; the gasket body and the nut body are tightly connected; the stud, the gasket body and the nut body are fastened in pairs, one of the stud, the gasket body and the nut body is loose, and the other two nut bodies can prevent the nut body from being loose, so that the anti-loosening effect of the nut connection pair is greatly enhanced; normal operation of the nut connecting pair is enhanced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a combination check washer and nut connection set of the present utility model;
FIG. 2 is a front view of a combination check washer and nut connection set of the present utility model;
FIG. 3 is a cross-sectional view of the combination check washer, nut coupling pair of the present utility model at A-A of FIG. 2;
FIG. 4 is an enlarged view of the combination check washer, nut connection set of the present utility model at I in FIG. 3;
fig. 5 is an enlarged view of the combination check washer, nut connection of the present utility model at II in fig. 3.
In the figure: 1. a stud; 2. a bolt cap; 3. a gasket body; 4. a nut body; 5. a clamping column; 6. a snap ring; 7. a clamping seat; 8. a clamping groove; 9. an elastic extrusion block; 10. a connecting groove; 11. a connection hole; 12. a connecting column; 13. an inner connecting seat; 14. an outer connecting seat; 15. a spring; 16. and a clamping groove.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-5, the utility model discloses a combined type anti-return washer and nut connecting pair, which comprises a stud 1, a washer body 3 sleeved on the peripheral side surface of the stud 1, and a nut body 4 movably connected to the side wall of the stud 1, wherein an upper anti-return component is arranged above the washer body 3, and a lower anti-return component is arranged below the washer body 3; the upper retaining component comprises a clamping column 5, a connecting column 12, an inner connecting seat 13, an outer connecting seat 14 and a spring 15, wherein the top of a stud 1 is fixedly connected with a bolt cap 2, the bottom of the bolt cap 2 is provided with a clamping groove 16, the clamping column 5 is fixedly connected to the top of a gasket body 3, the side wall of the bolt cap 2 is provided with a connecting hole 11, the connecting hole 11 is communicated with the clamping groove 16, the connecting column 12 penetrates through and is arranged in the connecting hole 11, the outer connecting seat 14 is fixedly connected to the connecting column 12 at a section outside the bolt cap 2, the inner connecting seat 13 is fixedly connected to the other end of the connecting column 12, one end of the spring 15 is fixedly connected with the inner connecting seat 13, the other end of the spring 15 is fixedly connected with the groove side wall of the clamping groove 16, the outer connecting seat 14 is pulled to enable the inner connecting seat 13 to squeeze the spring 15, then after the clamping column 5 is placed in the clamping groove 16, the force applied to the outer connecting seat 14 is removed, and the inner connecting seat 13 is clamped with the connecting groove 10 on the side wall of the clamping column 5 under the elastic force of the spring 15, so that stable connection between the gasket body 3 and the stud 1 is realized;
the lower retaining component comprises a clamping ring 6, a clamping seat 7 and an elastic extrusion block 9, wherein the clamping ring 6 is fixedly connected to the bottom of the gasket body 3, the clamping seat 7 is fixedly connected to the top of the nut body 4, a clamping groove 8 is formed in the top of the clamping seat 7, the elastic extrusion block 9 is fixedly connected to the bottom wall of the clamping groove 8, the nut body 4 is screwed, the clamping seat 7 moves upwards along with the nut body 4, and in the moving process, the clamping ring 6 extrudes the elastic extrusion block 9 fixedly connected to the inside of the clamping groove 8, so that the elastic extrusion block 9 deforms, and interference fit is formed between the clamping groove and the elastic extrusion block 9; the tight connection between the washer body 3 and the nut body 4 is achieved.
The side wall of the clamping column 5 is provided with a connecting groove 10, and the diameter of the connecting groove 10 is equal to that of the inner connecting seat 13, so that the clamping column 5 and the bolt cap 2 are conveniently fastened.
The four groups of upper retaining assemblies are symmetrically arranged about the center of the stud 1, so that the connection between the washer body 3 and the bolt cap 2 is more stable.
The bottom and the side wall of the nut body 4 are provided with round corners, so that the nut body 4 is conveniently screwed with the stud 1 in a threaded connection manner, and collision damage during transportation and storage is avoided.
The longitudinal section of the clamping ring 6 is in a right triangle shape, and the longitudinal section of the elastic extrusion block 9 is in an inverted right triangle shape, so that interference fit is formed between the elastic extrusion block and the clamping ring conveniently, and movement is prevented.
The thickness of the clamping ring 6 is equal to the depth of the clamping groove 8, so that the clamping ring 6 can be in meshed connection with the clamping seat 7, and the stopping function of the washer body 3 and the nut body 4 is realized.
The working principle of the utility model is as follows:
when a person uses the washer, the outer connecting seat 14 is pulled to enable the inner connecting seat 13 to squeeze the spring 15, then the clamping column 5 is placed in the clamping groove 16, the force applied to the outer connecting seat 14 is removed, and under the elastic force of the spring 15, the inner connecting seat 13 is clamped with the connecting groove 10 on the side wall of the clamping column 5, so that the washer body 3 and the stud 1 are firmly connected; then the nut body 4 is screwed, so that the clamping seat 7 moves upwards along with the nut body 4, and in the moving process, the clamping ring 6 extrudes the elastic extrusion block 9 fixedly connected with the inside of the clamping groove 8, so that the elastic extrusion block 9 deforms, and interference fit is formed between the elastic extrusion block 9 and the elastic extrusion block; the gasket body 3 and the nut body 4 are tightly connected; the stud 1, the gasket body 3 and the nut body 4 are fastened in pairs, one of the two parts is loose, and the other two parts can prevent the two parts from being loose, so that the anti-loosening effect of the nut connection pair is greatly enhanced; normal operation of the nut connecting pair is enhanced.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a combination formula retaining washer, nut connect pair, includes double-screw bolt (1), cover establish at the packing ring body (3) of double-screw bolt (1) week side and swing joint at nut body (4) of double-screw bolt (1) lateral wall, its characterized in that: an upper stopping component is arranged above the gasket body (3), and a lower stopping component is arranged below the gasket body (3);
the upper retaining component comprises a clamping column (5), a connecting column (12), an inner connecting seat (13), an outer connecting seat (14) and a spring (15), wherein the top of the stud (1) is fixedly connected with a bolt cap (2), the bottom of the bolt cap (2) is provided with a clamping groove (16), the clamping column (5) is fixedly connected to the top of the gasket body (3), the side wall of the bolt cap (2) is provided with a connecting hole (11), the connecting hole (11) is communicated with the clamping groove (16), the connecting column (12) penetrates through and is arranged in the connecting hole (11), the outer connecting seat (14) is fixedly connected to the connecting column (12) at one section outside the bolt cap (2), the inner connecting seat (13) is fixedly connected to the other end of the connecting column (12), one end of the spring (15) is fixedly connected with the inner connecting seat (13), and the other end of the spring (15) is fixedly connected with the groove side wall of the clamping groove (16).
The lower retaining assembly comprises a clamping ring (6), a clamping seat (7) and an elastic extrusion block (9), wherein the clamping ring (6) is fixedly connected to the bottom of the gasket body (3), the clamping seat (7) is fixedly connected to the top of the nut body (4), the top of the clamping seat (7) is provided with a clamping groove (8), and the elastic extrusion block (9) is fixedly connected to the bottom wall of the clamping groove (8).
2. The combined type anti-back washer and nut connection pair according to claim 1, wherein the side wall of the clamping column (5) is provided with a connection groove (10), and the diameter of the connection groove (10) is equal to the diameter of the inner connection seat (13).
3. The combination check washer, nut coupling as claimed in claim 1, wherein said upper check assembly has four sets and said four sets are symmetrically disposed about the center of the stud (1).
4. The combination check washer and nut coupling as claimed in claim 1, wherein the bottom and side walls of the nut body (4) are rounded.
5. The combined type anti-back washer and nut connecting pair according to claim 1, wherein the longitudinal section of the clamping ring (6) is a right triangle, and the longitudinal section of the elastic extrusion block (9) is an inverted right triangle.
6. The combination check washer, nut coupling as claimed in claim 1, characterized in that the thickness of the snap ring (6) is equal to the depth of the snap groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320708441.1U CN219840919U (en) | 2023-04-03 | 2023-04-03 | Combined anti-return washer and nut connecting pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320708441.1U CN219840919U (en) | 2023-04-03 | 2023-04-03 | Combined anti-return washer and nut connecting pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219840919U true CN219840919U (en) | 2023-10-17 |
Family
ID=88303213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320708441.1U Active CN219840919U (en) | 2023-04-03 | 2023-04-03 | Combined anti-return washer and nut connecting pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219840919U (en) |
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2023
- 2023-04-03 CN CN202320708441.1U patent/CN219840919U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |