Nut kit for automobile

Abstract

The invention discloses a nut kit for an automobile, and relates to the technical field of automobile accessories. The nut kit for the automobile comprises a main nut piece and an auxiliary nut piece, a second circular groove is formed in one end of the auxiliary nut; the spring assembly is arranged between the main nut piece and the second circular groove; the spring assembly comprises a first conical part, and the large end of the first conical part is connected with a second conical part. The large end of the conical part II is connected with the conical part I, and the small end of the conical part II is connected with a cylindrical part I; the small end of the first conical part is connected with a second cylindrical part, and the second cylindrical part is arranged in the second circular groove. The zero-sequence current transformer has a good anti-loosening effect.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to a nut kit for automobiles. Background Art

[0002] In the assembly of automobile parts, bolts and nuts are needed to fasten automobile parts; however, vibrations are generated during the operation of the automobile, and the traditional bolt-nut matching structure can easily cause the nuts to loosen when subjected to vibrations; in order to reduce the loosening of the nuts, some existing nut kits exert a force on the nuts along the bolt axis to increase the friction resistance between the bolts and nuts; however, the force generated by this method is relatively single, resulting in a general anti-loosening effect. Summary of the invention

[0003] The object of the present invention is to provide a nut kit for an automobile, which can effectively prevent the nut kit from loosening under vibration.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a nut kit for automobiles, comprising: Main nut piece; A secondary nut, wherein one end of the secondary nut is provided with a second circular groove; A spring assembly, wherein the spring assembly is disposed between the main nut member and the second circular groove; Wherein, the spring assembly comprises a first conical portion, and a large end of the conical portion is connected to a second conical portion; The two large ends of the conical part are connected to the first conical part, and the two small ends of the conical part are connected to the first columnar part; A small end of the conical portion is connected to a second cylindrical portion, and the second cylindrical portion is arranged in the second circular groove; The main nut member comprises a main body portion, one end of which is provided with a first circular groove, and the cylindrical portion is arranged in the first circular groove.

[0005] Furthermore, the main nut member also includes: A first conical cylinder portion, the conical cylinder portion being coaxially arranged in the first circular groove; A second conical cylinder portion, wherein the second conical cylinder portion is coaxially arranged at an end of the first conical cylinder portion away from the first circular groove; Wherein, the second conical cylinder portion is provided with a plurality of notches, and the plurality of notches are evenly distributed along the circumference of the second axis of the conical cylinder portion; The one large end of the cone cylinder is connected to the two large ends of the cone cylinder; The cylindrical portion 1 and the conical portion 2 are both sleeved on the outside of the conical cylinder portion 1, and the conical portion is sleeved on the outside of the conical cylinder portion 2; The length of the first conical part is greater than that of the second conical cylinder part, and when the spring assembly is in the normal state, the first conical part is adapted to the second conical cylinder part.

[0006] Further, a slope surface is provided at the small end of the second conical cylinder part.

[0007] Further, when the spring assembly is in the normal state, the outer diameter of the small end of the first conical part is greater than the outer diameter of the second cylindrical part, and the outer diameter of the small end of the first conical part is greater than the diameter of the second circular groove.

[0008] Further, when the spring assembly is in the normal state, the outer diameter of the small end of the second conical part is greater than the outer diameter of the first cylindrical part, and the outer diameter of the small end of the second conical part is greater than the diameter of the first circular groove.

[0009] Further, the length of the first cylindrical part in the normal state is greater than the depth of the first circular groove.

[0010] Further, the length of the second cylindrical part in the normal state is greater than the depth of the second circular groove.

[0011] Further, a first arc transition is provided at the edge of the first circular groove.

[0012] Further, a second arc transition is provided at the edge of the second circular groove.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows.

[0014] 1. In the present invention, the auxiliary nut squeezes the spring assembly to generate a force on the main nut part and the auxiliary nut along the axis direction of the bolt to be fitted; at the same time, the second conical part also generates a force on the main nut part that is not parallel to the axis direction of the bolt to be fitted, and the first conical part generates a force on the auxiliary nut that is not parallel to the axis direction of the bolt to be fitted, which can effectively prevent the entire nut set from loosening under vibration.

[0015] 2. When the auxiliary nut squeezes the second cylindrical part and compresses the spring assembly, the first conical part squeezes the second conical cylinder part to deform towards the direction close to the axis of the bolt to be fitted, improving the frictional resistance between the second conical cylinder part and the bolt to be fitted, and further improving the anti-loosening effect of the entire nut set. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is the overall explosion diagram of the first embodiment of the present invention.

[0018] Figure 2 It is the schematic diagram of the secondary nut structure of the first embodiment of the present invention.

[0019] Figure 3 It is the schematic diagram of the spring assembly structure of the first embodiment of the present invention.

[0020] Figure 4 It is the schematic diagram of the cooperation of the main nut part, the secondary nut and the spring assembly in the normal state in the first embodiment of the present invention.

[0021] Figure 5 It is Figure 4 the enlarged structure diagram of area A in

[0022] Figure 6 It is Figure 4 the enlarged structure diagram of area B in

[0023] Figure 7 It is the overall explosion diagram of the second embodiment of the present invention.

[0024] Figure 8 It is the schematic diagram of the main nut part structure of the second embodiment of the present invention.

[0025] Figure 9 It is the schematic diagram of the cooperation of the main nut part, the secondary nut and the spring assembly in the normal state in the second embodiment of the present invention.

[0026] Explanation of reference numerals: 1, main nut part; 11, main body part; 111, first circular groove; 112, first arc transition; 12, first conical part; 13, second conical part; 131, notch; 132, slope; 2, spring assembly; 21, first conical part; 22, second conical part; 23, first cylindrical part; 24, second cylindrical part; 3, secondary nut; 31, second circular groove; 311, second arc transition. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1 Please refer to Figure 1 and Figure 2, the present invention provides a technical solution: an automotive nut kit, including a main nut member 1 and a sub-nut 3, and a spring assembly 2 is arranged between the main nut member 1 and the sub-nut 3; the main nut member 1 includes a main body portion 11, a threaded hole is penetrated through the center of the main body portion 11, and a first circular groove 111 is arranged at one end of the main body portion 11 close to the sub-nut 3, and the first circular groove 111 is coaxial with the threaded hole on the main body portion 11; a second circular groove 31 is arranged at one end of the sub-nut 3 close to the main nut member 1, and the second circular groove 31 is coaxial with the threaded hole on the sub-nut 3.

[0029] Please refer to Figures 1-6 , the spring assembly 2 includes a first tapered portion 21, and a cylindrical portion 24 is connected to the small end of the first tapered portion 21; a second tapered portion 22 is connected to the large end of the first tapered portion 21, and the large end of the second tapered portion 22 is connected to the first tapered portion 21; a cylindrical portion 23 is arranged at the small end of the second tapered portion 22, and the cylindrical portion 23 is used to be arranged in the first circular groove 111, while the cylindrical portion 24 is used to be arranged in the second circular groove 31; and as Figure 3 shown, the number of turns of the first tapered portion 21 is 4.5, and the number of turns of the second tapered portion 22, the cylindrical portion 23 and the cylindrical portion 24 are all 1.

[0030] In addition, a first arc transition 112 is arranged at the edge of the first circular groove 111, and a second arc transition 311 is arranged at the edge of the second circular groove 31.

[0031] Specifically, when the spring assembly 2 is in a normal state (that is, the spring assembly 2 is neither stretched nor compressed), the outer diameter of the cylindrical portion 23 is slightly smaller than the diameter of the first circular groove 111, the outer diameter of the small end of the second tapered portion 22 is slightly larger than the diameter of the first circular groove 111, and the length of the cylindrical portion 23 is slightly larger than the depth of the first circular groove 111; since the outer diameter of the spring is slightly increased in the compressed state compared to its normal state, through the above settings, when the entire spring assembly 2 is compressed, it is convenient for the cylindrical portion 23 to be compressed in the first circular groove 111, and at the same time, since the outer diameter of the small end of the second tapered portion 22 is slightly larger than the diameter of the first circular groove 111, it is convenient for a part of the second tapered portion 22 to be pressed against the first arc transition 112.

[0032] When the spring assembly 2 is in a normal state, the outer diameter of the cylindrical portion 24 is slightly smaller than the diameter of the second circular groove 31, the diameter of the second circular groove 31 is slightly smaller than the outer diameter of the small end of the first tapered portion 21, and the length of the cylindrical portion 24 is slightly larger than the depth of the second circular groove 31; similarly, when the entire spring assembly 2 is compressed, it is convenient for the cylindrical portion 24 to be compressed in the second circular groove 31, and at the same time, since the outer diameter of the small end of the first tapered portion 21 is slightly larger than the diameter of the second circular groove 31, it is convenient for a part of the first tapered portion 21 to be pressed against the second arc transition 311.

[0033] In use, first fit the main nut member 1 onto the bolt to be fitted, then pass the spring assembly 2 outside the bolt to be fitted, and fit the first cylindrical portion 23 into the first circular groove 111; then fit the sub-nut 3 onto the bolt to be fitted, rotate the sub-nut 3 and make the sub-nut 3 continuously approach the spring assembly 2, and the second cylindrical portion 24 will be clamped into the second circular groove 31; as the sub-nut 3 continues to rotate, the sub-nut 3 presses the second cylindrical portion 24, realizing the overall compression of the spring assembly 2, and pressing a part of the second conical portion 22 against the first arc transition 112, and at the same time pressing a part of the first conical portion 21 against the second arc transition 311; finally, when the spring assembly 2 is compressed to a suitable state, stop rotating the sub-nut 3; since the spring assembly 2 is overall compressed, a force is generated on the main nut member 1 and the sub-nut 3 along the axis direction of the bolt to be fitted, so as to be able to increase the frictional resistance between the main nut member 1, the sub-nut 3 and the bolt to be fitted, and thus play an anti-loosening role; at the same time, since a part of the second conical portion 22 is pressed against the first arc transition 112 and a part of the first conical portion 21 is pressed against the second arc transition 311, the second conical portion 22 will also generate a force on the main nut member 1 that is not parallel to the axis direction of the bolt to be fitted. Similarly, the first conical portion 21 generates a force on the sub-nut 3 that is not parallel to the axis direction of the bolt to be fitted, further enhancing the frictional resistance between the main nut member 1, the sub-nut 3 and the bolt to be fitted, so as to effectively prevent the entire nut set from loosening under vibration.

[0034] Embodiment 2 Please refer to Figures 7-9 , based on Embodiment 1, the main nut member 1 further includes a first conical tube portion 12. The first conical tube portion 12 is coaxially arranged in the first circular groove 111. The large end of the first conical tube portion 12 is connected to the groove wall of the first circular groove 111. A second conical tube portion 13 is coaxially arranged at the small end of the first conical tube portion 12. The main body portion 11, the first conical tube portion 12 and the second conical tube portion 13 are integrally formed structures, and the entire main nut member 1 can be made of polyethylene material; threaded holes are penetrated through the first conical tube portion 12 and the second conical tube portion 13, and the threaded holes on the main body portion 11, the first conical tube portion 12 and the second conical tube portion 13 form a continuous threaded hole structure; at the same time, a plurality of notches 131 are arranged on the second conical tube portion 13. The plurality of notches 131 are circumferentially and evenly distributed along the axis direction of the second conical tube portion 13. The notches 131 penetrate through the outer wall of the second conical tube portion 13, and the notches 131 communicate with the internal threaded holes of the second conical tube portion 13.

[0035] When the cylindrical part 23 is fitted in the first circular groove 111, the conical part 21 is sleeved outside the second conical cylinder, and the conical part 22 and the cylindrical part 23 are sleeved outside the first conical cylinder part 12; and when the spring assembly 2 is in a normal state, the conical part 21 is adapted to the second conical cylinder part 13; in addition, a slope 132 is provided at the small end of the second conical cylinder part 13; when the auxiliary nut 3 presses the cylindrical part 24 and the spring assembly 2 is compressed as a whole, the adjacent coil spacing of the conical part 21 decreases, and the small end of the conical part 21 moves towards the large end of the conical part 21, so that it is convenient for the conical part 21 to press the surface of the second conical cylinder part 13; in addition, since the main nut part 1 is made of polyethylene and a plurality of notches 131 are provided on the second conical cylinder part 13, the conical part 22 can be deformed when being pressed; due to the provision of the slope 132, it is convenient for the conical part 21 to press the second conical cylinder part 13 to deform towards the axis direction of the bolt to be fitted, so as to increase the frictional resistance between the second conical cylinder part 13 and the bolt to be fitted, and further improve the anti-loosening effect of the whole nut kit.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nut kit for an automobile, characterized in that, Comprising: A main nut member (1); A sub-nut (3), one end of the sub-nut (3) is provided with a second circular groove (31); A spring assembly (2), the spring assembly (2) is arranged between the main nut member (1) and the second circular groove (31); Wherein, the spring assembly (2) includes a first tapered portion (21), and a second tapered portion (22) is connected to the large end of the first tapered portion (21); The large end of the second tapered portion (22) is connected to the first tapered portion (21), and a first cylindrical portion (23) is connected to the small end of the second tapered portion (22); A second cylindrical portion (24) is connected to the small end of the first tapered portion (21), and the second cylindrical portion (24) is arranged in the second circular groove (31); The main nut member (1) includes a main body portion (11), one end of the main body portion (11) is provided with a first circular groove (111), and the first cylindrical portion (23) is arranged in the first circular groove (111).

2. The nut kit for an automobile according to claim 1, characterized in that, The main nut member (1) further includes: A first tapered cylinder portion (12), the first tapered cylinder portion (12) is coaxially arranged in the first circular groove (111); A second tapered cylinder portion (13), the second tapered cylinder portion (13) is coaxially arranged at one end of the first tapered cylinder portion (12) away from the first circular groove (111); Wherein, a plurality of notches (131) are provided on the second tapered cylinder portion (13), and the plurality of notches (131) are circumferentially and uniformly distributed along the axial direction of the second tapered cylinder portion (13); The large end of the first tapered cylinder portion (12) is connected to the large end of the second tapered cylinder portion (13); Both the first cylindrical portion (23) and the second tapered portion (22) are sleeved outside the first tapered cylinder portion (12), and the first tapered portion (21) is sleeved outside the second tapered cylinder portion (13); The length of the first tapered portion (21) is greater than the length of the second tapered cylinder portion (13), and when the spring assembly (2) is in a normal state, the first tapered portion (21) is adapted to the second tapered cylinder portion (13).

3. A nut kit for an automobile according to claim 2, wherein A slope surface (132) is provided at the small end of the second tapered cylinder portion (13).

4. A nut kit for an automobile according to claim 2, characterized in that, When the spring assembly (2) is in a normal state, the outer diameter of the small end of the first tapered portion (21) is greater than the outer diameter of the second cylindrical portion (24), and the outer diameter of the small end of the first tapered portion (21) is greater than the diameter of the second circular groove (31).

5. A nut kit for an automobile according to claim 2, characterized in that, When the spring assembly (2) is in a normal state, the outer diameter of the small end of the second tapered portion (22) is greater than the outer diameter of the first cylindrical portion (23), and the outer diameter of the small end of the second tapered portion (22) is greater than the diameter of the first circular groove (111).

6. The nut kit for an automobile according to claim 2, wherein, The length of the first cylindrical portion (23) in a normal state is greater than the depth of the first circular groove (111).

7. A nut kit for an automobile according to claim 2, characterized in that, The length of the second cylindrical portion (24) in a normal state is greater than the depth of the second circular groove (31).

8. A nut kit for an automobile according to claim 1, wherein, A first arc transition (112) is provided at the edge of the first circular groove (111).

9. A nut kit for an automobile according to claim 1, characterized in that, A second arc transition (311) is provided at the edge of the second circular groove (31).

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