Preloading tightening torque gasket

Abstract

The utility model provides a preloading tightening torque gasket, and belongs to the technical field of bolt gaskets. Comprising a bolt and further comprises a gasket body, a plurality of triangular clamping blocks are fixedly connected to the lower end of the bolt, and triangular clamping grooves equal to the triangular clamping blocks in number are formed in the upper end of the gasket body in a penetrating mode. The bolt is rotated in the direction of the threads until the bolt moves downwards to make contact with the surface of the convex hull, then the bolt continues to be rotated, due to the downward pressure effect of the bolt, the convex hull generates downward compression deformation, the bolt and the gasket body are extruded, the friction force between the bolt and the gasket body is increased, and the service life of the gasket body is prolonged. The bolt and the gasket body are not prone to generating displacement of relative movement, firmness and stability of connection of the bolt and the gasket body are improved, the bolt for fixing parts on an automobile is not prone to loosening, and driving safety of the automobile is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt washers, in particular to a preload tightening torque washer. Background Art

[0002] Flexible graphite composite gasket is a reinforced graphite gasket made of a multi-metal core plate of punched teeth and a composite plate of expanded graphite particles. It fully utilizes the high temperature resistance, corrosion resistance and good sealing performance of flexible graphite, and can be supplemented with a metal core plate to improve its mechanical strength and maintain a high resilience, so this gasket has been promoted and applied in the production of automotive parts.

[0003] In the prior art, a Chinese patent with authorization announcement number CN217055907U discloses an anti-loosening automobile oil tank bolt, including a nut and a stud, a stud is fixedly arranged in the middle of the bottom end of the nut, and a gasket is movably sleeved on the top end of the stud, and an annular groove is opened around the top end of the gasket, and the annular groove is located at the bottom of the nut, a second elastic damping block is fixedly arranged on the bottom edge of the nut, and a first elastic damping block adapted to the second elastic damping block is fixedly arranged on the bottom inner wall of the annular groove.

[0004] However, in the prior art, due to repeated vibrations of the car during driving, the bolts fixing the parts on the car are prone to loosening, affecting the driving safety and use safety of the car. Therefore, the present application provides a preloaded tightening torque gasket to meet the demand. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a preloaded tightening torque gasket to solve the problem raised in the above background technology that the bolts of fixing parts on the automobile are easily loosened due to repeated vibrations of the automobile during driving, thereby affecting the driving safety and use safety of the automobile.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A preload tightening torque gasket comprises a bolt and a gasket body, wherein the lower end of the bolt is fixedly connected to multiple groups of triangular clamping blocks, and the upper end of the gasket body is penetrated by a number of triangular clamping grooves equal to the number of triangular clamping blocks. When the bolt is rotated to fit with the upper surface of the gasket body, the multiple groups of triangular clamping blocks are respectively engaged with the multiple groups of triangular clamping grooves, and the triangular clamping grooves are arranged in a circular array, and deformation grooves are penetrated between two adjacent groups of triangular clamping grooves. Elastic convex bulges are arranged at the upper end of the gasket body and inside each group of deformation grooves, and circular grooves are arranged at the lower end of the gasket body and below each group of elastic convex bulges.

[0008] Preferably, a double-sided tape is bonded to the lower end of the gasket body, and circular holes of the same size penetrate through the double-sided tape and corresponding positions of each group of circular grooves.

[0009] Preferably, a through hole penetrating the upper and lower ends is opened at the center of the gasket body, and the lower end of the bolt passes through the interior of the gasket body through the through hole.

[0010] Preferably, a thread is provided at the lower end of the side wall of the bolt.

[0011] Preferably, the cross section of the triangular slot is triangular and is radial as a whole.

[0012] Preferably, the triangular clamping block fits the shape of the triangular clamping slot.

[0013] Preferably, when the bolt presses the gasket body downward, the elastic convex bump generates compression deformation downward, and at this time, the upper end of the elastic convex bump is squeezed with the lower surface of the bolt, and the gasket body is made of elastic stainless steel.

[0014] Preferably, the upper end of the bolt is provided with a circular chamfer.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] In the above scheme, the bolt is rotated along the direction of the thread until the bolt moves downward to contact the surface of the convex bump, and then the bolt is continued to be rotated. Due to the downward pressure of the bolt, the convex bump is compressed downward, and the bolt and the gasket body are squeezed, thereby increasing the friction between the bolt and the gasket body, making it difficult for the bolt and the gasket body to move relative to each other, improving the firmness and stability of the connection between the bolt and the gasket body, making it difficult for the bolts fixing the parts on the car to loosen, and improving the driving safety of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the preload tightening torque gasket;

[0019] Figure 2 It is a schematic diagram of the split structure of the preload tightening torque gasket;

[0020] Figure 3 It is a schematic diagram of the gasket body of the preload tightening torque gasket;

[0021] Figure 4 This is a schematic diagram of the bolts of the preload tightening torque gasket and the gasket body not being tightened;

[0022] Figure 5 Schematic diagram of the bolts and gasket body of the preload tightening torque gasket being tightened.

[0023] [Reference Signs]

[0024] 1. Bolt; 2. Gasket body; 3. Double-sided film; 4. Bump; 5. Circular groove; 6. Triangular slot; 7. Thread; 8. Triangular block; 9. Deformation groove.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0026] The following is a detailed description of a preload tightening torque gasket provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0027] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0029] like Figure 1-Figure 5As shown, the embodiment of the utility model provides a preload tightening torque gasket, including a bolt 1 and a gasket body 2. The lower end of the bolt 1 is fixedly connected to multiple groups of triangular clamping blocks 8. The upper end of the gasket body 2 is penetrated with triangular clamping grooves 6 equal to the number of triangular clamping blocks 8. When the bolt 1 is rotated to fit the upper surface of the gasket body 2, the multiple groups of triangular clamping blocks 8 are respectively engaged with the multiple groups of triangular clamping grooves 6. The triangular clamping grooves 6 are in a circular array. Deformation grooves 9 are penetrated between two adjacent groups of triangular clamping grooves 6. The upper end of the gasket body 2 and the interior of each group of deformation grooves 9 are provided with elastic convex hulls 4. The lower end of the gasket body 2 and the interior of each group of deformation grooves 9 are provided with elastic convex hulls 4. A circular groove 5 is provided under each group of elastic convex bumps 4. The lower surface of the double-sided tape 3 is pasted on the surface of the automobile part to be fixed and installed, and then the bolt 1 is rotated along the direction of the thread 7 until the bolt 1 moves downward to contact the surface of the convex bump 4, and then the bolt 1 is continued to be rotated. Due to the downward pressure of the bolt 1, the convex bump 4 is compressed downward, and the circular groove 5 and the deformation groove 9 are deformed, so that the bolt 1 and the gasket body 2 are squeezed, the friction between the bolt 1 and the gasket body 2 is increased, and the bolt 1 and the gasket body 2 are not easily displaced relative to each other, thereby improving the firmness and stability of the connection between the bolt 1 and the gasket body 2.

[0030] like Figure 1-Figure 5 As shown, in this embodiment, a double-sided tape 3 is bonded to the lower end of the gasket body 2, and the double-sided tape 3 and each group of circular grooves 5 are penetrated with circular holes of the same size at corresponding positions. A through hole penetrating the upper and lower ends is opened at the center of the gasket body 2, and the lower end of the bolt 1 passes through the interior of the gasket body 2 through the through hole. A thread 7 is provided at the lower end of the side wall of the bolt 1. The cross-section of the triangular slot 6 is triangular and radial as a whole. The shape of the thread 7 fits the shape of the triangular slot 6. When the bolt 1 presses the gasket body 2 downward, the elastic convex bump 4 is compressed downward Deformation, at this time, the upper end of the elastic convex bump 4 is squeezed with the lower surface of the bolt 1, the gasket body 2 is made of elastic stainless steel, and the upper end of the bolt 1 is provided with a circular chamfer. When the bolt 1 is in rotational contact with the lower end of the triangular clamping block 8, since the surface of the gasket body 2 is elastic, the triangular clamping block 8 at the lower end of the bolt 1 can move along the surface of the gasket body 2. When the bolt 1 and the gasket body 2 are completely fitted, the bolt 1 reaches a tightened state, and at this time the triangular clamping block 8 is just clamped into the triangular clamping groove 6, further increasing the friction between the bolt 1 and the gasket body 2.

[0031] The technical solution provided by the utility model is as follows: first, the lower surface of the double-sided tape 3 is pasted on the surface of the automobile part that needs to be fixed and installed, and then the bolt 1 is rotated along the direction of the thread 7 until the bolt 1 moves downward to contact the surface of the convex bulge 4, and then the bolt 1 is continued to be rotated. Due to the downward pressure of the bolt 1, the convex bulge 4 is compressed downward, and the bolt 1 and the gasket body 2 are squeezed, thereby increasing the friction between the bolt 1 and the gasket body 2, so that the bolt 1 and the gasket body 2 are not easy to produce relative displacement, thereby improving the firmness and stability of the connection between the bolt 1 and the gasket body 2, and when the bolt 1 is in rotational contact with the lower end of the triangular clamping block 8, since the surface of the gasket body 2 is elastic, the triangular clamping block 8 at the lower end of the bolt 1 can move along the surface of the gasket body 2, and when the bolt 1 and the gasket body 2 are fully fitted, the bolt 1 reaches a tightened state, and at this time the triangular clamping block 8 is just clamped into the triangular clamping groove 6, further increasing the friction between the bolt 1 and the gasket body 2.

[0032] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, the specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A preloaded tightening torque gasket, comprising a bolt (1), characterized in that: It also comprises a gasket body (2), the lower end of the bolt (1) being fixedly connected to a plurality of groups of triangular clamping blocks (8), the upper end of the gasket body (2) being penetrated by a triangular clamping groove (6) having the same number as the triangular clamping blocks (8), when the bolt (1) is rotated to fit the upper surface of the gasket body (2), the plurality of groups of triangular clamping blocks (8) are respectively engaged with the plurality of groups of triangular clamping grooves (6), the triangular clamping grooves (6) being arranged in a circular array, and deformation grooves (9) being penetrated between two adjacent groups of triangular clamping grooves (6), the upper end of the gasket body (2) and located inside each group of deformation grooves (9) are provided with elastic convex bulges (4), and the lower end of the gasket body (2) and located below each group of elastic convex bulges (4) are provided with circular grooves (5).

2. The preload tightening torque gasket according to claim 1, characterized in that: A double-sided adhesive film (3) is bonded to the lower end of the gasket body (2), and circular holes of the same size are penetrated at corresponding positions of the double-sided adhesive film (3) and each group of circular grooves (5).

3. The preload tightening torque gasket according to claim 1, characterized in that: A through hole penetrating the upper and lower ends is provided at the center of the gasket body (2), and the lower end of the bolt (1) passes through the interior of the gasket body (2) through the through hole.

4. The preload tightening torque gasket according to claim 1, characterized in that: A thread (7) is provided at the lower end of the side wall of the bolt (1).

5. The preload tightening torque gasket according to claim 1, characterized in that: The cross section of the triangular slot (6) is triangular and is radial in shape as a whole.

6. The preload tightening torque gasket according to claim 4, characterized in that: The triangular clamping block (8) fits the shape of the triangular clamping slot (6).

7. The preload tightening torque gasket according to claim 1, characterized in that: When the bolt (1) presses the gasket body (2) downward, the elastic convex bump (4) generates downward compression deformation, and at this time, the upper end of the elastic convex bump (4) is compressed with the lower surface of the bolt (1), and the gasket body (2) is made of elastic stainless steel.

8. The preload tightening torque gasket according to claim 1, characterized in that: The upper end of the bolt (1) is provided with a circular chamfer.

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