Anti-loose clamping fastener

Abstract

The utility model relates to the technical field of mechanical parts, in particular to an anti-loose clamping fastener. According to the technical scheme, the connecting structure comprises a cylindrical main body matched connection stud, a fastening connection threaded groove is formed in the outer cylindrical face of the main body matched connection stud, and a matched connection stabilizing base is arranged at the upper end of the main body matched connection stud. A sealing fit stabilizing boss which is integrally formed and circumferentially distributed is arranged at the lower end of the fit connection stabilizing base, and the section of the sealing fit stabilizing boss is of an inverted isosceles trapezoid structure. The utility model has the advantages that the combination safety is higher during use, the lower end position can be matched with a sealing ring for tight matched connection during matching, the overall sealing stability is more reliable, and the connection requirements during installation and matching of complex mechanical components can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical components, in particular to a loosening-proof clamping fastener. Background Technique

[0002] In mechanical components, the screw rod is a relatively common mechanical component. The existing fastening screw rod components have relatively single functions. When fastening, they can only play a fastening connection role and cannot be associated and matched with other components. The flexibility during combination is relatively poor. When installing and matching multiple complex mechanical components, the matching requirements of combined connection cannot be met. Content of the Utility Model

[0003] The purpose of the utility model is to provide a loosening-proof clamping fastener. By setting a stable seat at the end of the screw rod structure and setting a clamping structure and a loosening-proof structure, it can achieve precise and convenient associated clamping combination with mechanical components. Not only is the connection operation during combination more convenient, but also the clamping position can achieve a reliable clamping and loosening-proof cooperation effect, and the combination safety during use is higher. Its lower end position can be closely cooperated and connected with a sealing ring during cooperation, and the overall sealing stability is more reliable, which can meet the connection requirements during the installation and matching of complex mechanical components.

[0004] The technical solution of the utility model is as follows:

[0005] A loosening-proof clamping fastener includes a cylindrical main body and a mating connecting stud. The outer cylindrical surface of the main body mating connecting stud is provided with a fastening connecting thread groove. A mating connecting stable seat is arranged at the upper end of the main body mating connecting stud. It is characterized in that: the mating connecting stable seat is of an inverted conical structure. An integrally formed and circumferentially distributed sealing mating stable boss is arranged at the lower end of the mating connecting stable seat. The cross section of the sealing mating stable boss is of an inverted isosceles trapezoid structure. The outer side of the sealing mating stable boss is an arc-shaped structural surface and coincides with the outer conical surface of the mating connecting stable seat. A circumferentially distributed and U-shaped cross-section clamping mating connecting groove with an opening facing outward is arranged at the upper end of the mating connecting stable seat. A clamping connecting and loosening-proof groove is arranged on one side in the width direction of the clamping mating connecting groove. The clamping connecting and loosening-proof groove is located at the middle position in the up and down direction of the clamping mating connecting groove.

[0006] Further, the inner side of the sealing mating stable boss is connected to the outer cylindrical surface of the main body mating connecting stud.

[0007] Further, the depth of the clamping mating connecting groove in the up and down direction is greater than half of the height of the mating connecting stable seat in the up and down direction.

[0008] Further, a mating guiding rounded corner structure is arranged at the outer edge position of the clamping mating connecting groove.

[0009] Further, an overall fastening and clamping mating groove is provided on the outer side of the mating connection stabilizing seat.

[0010] Advantages of the utility model:

[0011] By providing a stabilizing seat at the end of the screw structure and setting a positioning structure and a loosening prevention structure, the utility model can achieve precise and convenient associated positioning combination with mechanical components. Not only is the connection operation during mating more convenient, but also the mating position can achieve a reliable clamping and loosening prevention mating effect, with higher combination safety during use. At its lower end position, it can be closely mated and connected with a sealing ring during mating, and the overall sealing stability is more reliable, which can meet the connection requirements during the installation and mating of complex mechanical components. Description of the drawings

[0012] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 is a front schematic diagram of the utility model;

[0014] Figure 3 is a left schematic diagram of the utility model;

[0015] Figure 4 is a right schematic diagram of the utility model;

[0016] Figure 5 is a top schematic diagram of the utility model;

[0017] Figure 6 is a bottom schematic diagram of the utility model;

[0018] Figure 7 is a three-dimensional structural schematic diagram of the utility model in a second direction;

[0019] In the figure: 1, main body mating connection stud; 2, mating connection stabilizing seat; 3, sealing mating stabilizing boss; 4, positioning mating connection groove; 5, clamping connection loosening prevention groove. Detailed implementation manners

[0020] Such as Figures 1 to 7As shown in the figure, a loosening-preventing clamping fastener includes a cylindrical main body cooperatively connected to a stud 1. An external cylindrical surface of the main body cooperatively connected to the stud 1 is provided with a fastening connection thread groove. An upper end of the main body cooperatively connected to the stud 1 is provided with a cooperative connection stabilizing seat 2, and its setting can provide space for the assembly during the later cooperative installation of associated components. The cooperative connection stabilizing seat 2 is of an inverted conical structure. A sealing cooperative stabilizing boss 3 which is integrally formed and circumferentially distributed is provided at a lower end of the cooperative connection stabilizing seat 2, and the lower end position can be cooperatively fastened with a sealing ring. A cross section of the sealing cooperative stabilizing boss 3 is of an inverted isosceles trapezoid structure, and after fastening, the pressing stability of the sealing ring can be better, and the sealing safety can be guaranteed, so as to meet the cooperative requirements of connection positions with relatively high sealing requirements. An outer side of the sealing cooperative stabilizing boss 3 is an arc-shaped structural surface and coincides with an outer conical surface of the cooperative connection stabilizing seat 2, making the strength of the main body structure higher and more convenient for production and processing. An upper end of the cooperative connection stabilizing seat 2 is provided with a clamping cooperative connection groove 4 which is circumferentially distributed and has a U-shaped cross section with an opening facing outward, and can be inserted and cooperated with an upper structure. A clamping connection anti-loosening groove 5 is provided on one side in a width direction of the clamping cooperative connection groove 4, and can be clamped and cooperated with a telescopic boss structure on a cooperative component. The clamping connection anti-loosening groove 5 is located at a middle position in an up-down direction of the clamping cooperative connection groove 4, and the anti-loosening force during cooperation is stronger and the cooperation safety is higher. By arranging a stabilizing seat at an end of a screw structure and arranging a clamping structure and an anti-loosening structure, it can realize accurate and convenient associated clamping combination with mechanical components. Not only is the connection operation during cooperation more convenient, but also the cooperation position can achieve a reliable clamping and anti-loosening cooperation effect, and the combination safety during use is higher. Its lower end position can be closely cooperatively connected with a sealing ring during cooperation, and the overall sealing stability is more reliable, and it can meet the connection requirements during the installation and cooperation of complex mechanical components.

[0021] Preferably, an inner side of the sealing cooperative stabilizing boss 3 is connected to an external cylindrical surface of the main body cooperatively connected to the stud 1, so that the overall structural support strength is better and the service life during use is longer.

[0022] Preferably, a depth of the clamping cooperative connection groove 4 in an up-down direction is greater than half of a height of the cooperative connection stabilizing seat 2 in an up-down direction, so that the cooperation space during combination is larger, the cooperation connection strength is higher, and the safety during later use is more reliable.

[0023] Preferably, a cooperative guiding rounded corner structure is provided at an outer edge position of the clamping cooperative connection groove 4, and the cooperation smoothness with a combined structure during cooperation is better.

[0024] Preferably, an integral fastening and clamping mating groove is provided on the outer side of the mating connection stabilizing seat 2, and when fastening the lower end screw structure, a clamping tool can be used for fastening and mating as required, making the overall fastening operation more convenient.

[0025] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements or substitutions can be made, and these improvements or substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A locking fastener, comprising a cylindrical main body mating connection stud (1), wherein the outer cylindrical surface of the main body mating connection stud (1) is provided with a fastening connection thread groove, and the upper end of the main body mating connection stud (1) is provided with a mating connection stabilizing seat (2), characterized in that: The mating connection stabilizing seat (2) is an inverted conical structure. The lower end of the mating connection stabilizing seat (2) is provided with an integrally formed and circumferentially distributed sealing mating stabilizing boss (3). The cross section of the sealing mating stabilizing boss (3) is an inverted isosceles trapezoidal structure. The outer side of the sealing mating stabilizing boss (3) is an arc-shaped structural surface and coincides with the outer conical surface of the mating connection stabilizing seat (2). The upper end of the mating connection stabilizing seat (2) is provided with a circumferentially distributed and U-shaped cross section opening to the outside. A mating connection anti-loosening groove (5) is provided on one side of the width direction of the mating connection groove (4). The mating connection anti-loosening groove (5) is located at the middle position of the mating connection groove (4) in the upper and lower directions.

2. The anti-loosening type fastener according to claim 1, characterized in that: The inner side of the sealing mating stabilizing boss (3) is connected to the outer cylindrical surface of the main body mating connecting stud (1).

3. The anti-loosening type fastener according to claim 1, characterized in that: The depth of the locking and matching connection groove (4) in the up-down direction is greater than half the height of the matching and connecting stabilizing seat (2) in the up-down direction.

4. The anti-loosening type fastener according to claim 1, characterized in that: The outer edge of the locking and matching connecting groove (4) is provided with a matching guide fillet structure.

5. The anti-loosening type fastener according to claim 1, characterized in that: An integral fastening and clamping fitting groove is provided on the outer side of the fitting connection stabilizing seat (2).

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