Double-sided corrugated gasket

Abstract

The utility model relates to the field of corrugated washers, in particular to a double-sided corrugated washer which comprises a washer body, the washer body is wavy, the lower surface of the washer body is in the shape of a projection of a sinusoidal waveform segment on an annular surface, mounting holes are formed in the wave trough positions of the lower surface of the washer body, and balls are placed in the mounting holes. A mounting groove is formed in the wave crest position of the lower surface, and a rubber block is fixedly arranged in the mounting groove. Through the arrangement of the mounting holes, the balls, the mounting grooves and the rubber blocks, when a bolt is screwed, the resistance borne in the early stage is small, the balls can reduce the scratching situation between the gasket and a mounting face, the rubber blocks make contact with the mounting face in the later stage, the balls do not make contact with the mounting face any more, and the situation that pits are formed in the mounting face by the balls when pressure is large is avoided; in addition, through the arrangement of the spherical section, the cylindrical section and the clamping block, the balls are easy to install, and the balls are prevented from falling out of the installation holes easily.

Description

Technical Field

[0001] This utility model relates to the field of corrugated washers, and more particularly to a double-sided corrugated washer. Background Technology

[0002] A wave-shaped elastic washer is an elastic washer with a wave-like structure, usually made of metallic materials such as stainless steel, carbon steel, or alloy steel. Its main characteristic is the continuous wave-like shape formed on the washer surface; this wave-like structure gives it unique elastic and mechanical properties.

[0003] However, because the corrugated gasket is compressed under pressure, its height decreases, and the relative positions of its various contact points with the mounting surface change, which may cause scratches on the mounting surface. Therefore, it is necessary to improve this structure to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a double-sided corrugated washer. This utility model is achieved through the following technical solution:

[0005] A double-sided corrugated washer includes a washer body, the washer body being corrugated, and the shape of the lower surface of the washer body being the projection of a sine wave segment onto a ring surface. A mounting hole is provided at the trough position of the lower surface of the washer body, and a ball is placed in the mounting hole. A mounting groove is provided at the crest position of the lower surface, and a rubber block is fixedly installed in the mounting groove.

[0006] In the above technical solution: the washer body is used to realize the basic function of the washer and to set the other components; the shape of the lower surface of the washer body is a sine wave, which makes the deformation range of the washer body large when it is compressed, thereby providing higher elasticity and downward pressure; the mounting hole is used to set the ball; the ball is used to make the friction between the present invention and the mounting surface much smaller than the friction between the present invention and the bolt when the bolt is tightened, so that the present invention rotates with the bolt, and the friction between the ball and the mounting surface is small, reducing the generation of scratches; the mounting groove is used to set the rubber block; the rubber block is used to contact the mounting surface after the washer body deforms to a certain extent, so that after the downward pressure provided by the washer body reaches a certain extent, the mounting surface no longer contacts the ball, but only contacts the rubber block, thereby further reducing the generation of scratches.

[0007] A further feature of this invention is that the height of the rubber block is less than the amplitude of the lower surface.

[0008] In the above technical solution, the height setting of the rubber block prevents it from initially contacting the mounting surface, thus avoiding the problem of difficulty in initially tightening the bolts.

[0009] A further feature of this invention is that the mounting hole penetrates the washer body, and the mounting hole includes a spherical section and a cylindrical section, the radius of the spherical section being the same as the radius of the ball, and the diameter of the cylindrical section being the same as the diameter of the ball.

[0010] In the above technical solution, the mounting hole includes a spherical section and a cylindrical section, which are used to install the ball bearings.

[0011] A further feature of this invention is that the spherical segment intersects with the lower surface of the washer body, and the cylindrical segment intersects with the upper surface of the washer body.

[0012] In the above technical solution: the spherical section intersects with the lower surface of the washer body, allowing the spherical surface to protrude from the outside of the washer body and contact the mounting surface.

[0013] A further feature of this invention is that a locking block is fixedly provided on the upper surface of the washer body, the locking block is disposed in the mounting hole, and the locking block is in contact with the ball.

[0014] In the above technical solution: the retainer is used to fix the position of the ball in the mounting hole.

[0015] A further feature of this invention is that the diameter of the card block is not less than the diameter of the mounting hole.

[0016] In the above technical solution: the diameter of the card block is not less than the diameter of the mounting hole, so as to facilitate the installation of the card block and the mounting hole.

[0017] This utility model discloses a double-sided corrugated washer, which, compared with the prior art:

[0018] 1. This utility model, through the setting of mounting holes, ball bearings, mounting grooves and rubber blocks, makes the resistance encountered in the early stage when tightening the bolts small, and the ball bearings can reduce the scratches between the washer and the mounting surface. In the later stage, the rubber block contacts the mounting surface, and the ball bearings no longer contact the mounting surface, thus avoiding the formation of pits on the mounting surface by the ball bearings when the pressure is high.

[0019] 2. The present invention also simplifies the installation of the ball bearings by using a spherical section, a cylindrical section, and a locking block, thus preventing the ball bearings from easily falling out of the mounting hole. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is a top view of the present invention;

[0022] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0023] The numbers and letters in the diagram represent the following component names: 10-Washer body; 101-Mounting hole; 101a-Spherical section; 101b-Cylindrical section; 102-Mounting groove; 20-Ball bearing; 30-Rubber block; 40-Clamping block. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0025] like Figure 1-3 As shown, this utility model proposes a double-sided corrugated washer, including a washer body 10. The washer body 10 is corrugated, and the shape of the lower surface of the washer body 10 is the projection of a sine wave segment onto a ring surface. A mounting hole 101 is provided at the trough position of the lower surface of the washer body 10, and a ball bearing 20 is placed in the mounting hole 101. A mounting groove 102 is provided at the crest position of the lower surface, and a rubber block 30 is fixedly disposed in the mounting groove 102. The sine wave segment includes three cycles; there are three balls bearing 20; and there are also three rubber blocks 30.

[0026] like Figure 1-3 As shown, this utility model proposes a double-sided corrugated washer, wherein the height of the rubber block 30 is less than the amplitude of the lower surface.

[0027] like Figure 1-3 As shown, this utility model proposes a double-sided corrugated washer, wherein the mounting hole 101 penetrates the washer body 10, and the mounting hole 101 includes a spherical section 101a and a cylindrical section 101b. The radius of the spherical section 101a is the same as the radius of the ball 20, and the diameter of the cylindrical section 101b is the same as the diameter of the ball 20.

[0028] like Figure 1-3 As shown, this utility model proposes a double-sided corrugated washer, wherein the spherical segment 101a intersects with the lower surface of the washer body 10, and the cylindrical segment 101b intersects with the upper surface of the washer body 10. The diameter of the hole formed at the intersection of the spherical segment 101a and the lower surface of the washer body 10 is smaller than the radius of the spherical segment 101a.

[0029] like Figure 1-3As shown, this utility model proposes a double-sided corrugated washer, in which a retaining block 40 is fixedly disposed on the upper surface of the washer body 10. The retaining block 40 is disposed in the mounting hole 101 and contacts the ball bearing 20. A spring may also be fixedly connected to the retaining block 40, and the spring contacts the ball bearing 20. This ensures that the ball bearing 20 retracts into the mounting hole 101 only when the supporting force on the ball bearing 20 exceeds the elastic force provided by the spring, further reducing the possibility of the ball bearing 20 scratching the mounting surfaces. A hole may be provided in the middle of the retaining block to facilitate the installation of balls with larger diameters.

[0030] like Figure 1-3 As shown, this utility model proposes a double-sided corrugated washer, wherein the diameter of the retaining block 40 is not less than the diameter of the mounting hole 101. Preferably, the diameter of the retaining block 40 is slightly larger than the diameter of the mounting hole, and the retaining block 40 is provided with a guide cone surface to facilitate an interference fit between the retaining block 40 and the mounting hole.

[0031] The working principle of this utility model is as follows:

[0032] a) During installation, place this utility model at the threaded hole position on the mounting surface;

[0033] b) Pass the bolt through the center hole of the front body and then thread it into the threaded hole;

[0034] c) Tighten the rotating bolts above;

[0035] d) After the bolt contacts the washer, it continues to rotate, generating downward pressure on the washer body;

[0036] e) The friction between the washer body and the bolt is greater than the friction between the ball and the mounting surface, causing the washer body to rotate with the bolt.

[0037] f) As the bolt continues to be rotated, the washer body deforms further, and the rubber block comes into contact with the mounting surface;

[0038] g) Because the frictional force between the rubber block and the mounting surface is greater than the frictional force between the washer body and the bolt, the washer no longer rotates with the bolt.

[0039] h) After the washer body continues to deform, the balls no longer contact the mounting surface, and the downward pressure provided by the washer is transmitted to the mounting surface by the rubber block, reducing scratches.

[0040] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A double-sided corrugated gasket, characterized by: The gasket body (10) is waved, and the lower surface of the gasket body (10) is in the shape of a sine wave segment on a torus surface, the valley position of the lower surface of the gasket body (10) is provided with a mounting hole (101), the mounting hole (101) is placed with a ball (20), the peak position of the lower surface is provided with a mounting groove (102), and the mounting groove (102) is fixedly provided with a rubber block (30).

2. A double-sided corrugated washer as claimed in claim 1, wherein: The height of the rubber block (30) is less than the amplitude of the lower surface.

3. A double-sided corrugated washer according to claim 1 or 2, characterised in that: The mounting hole (101) penetrates the gasket body (10), the mounting hole (101) comprises a spherical segment (101a) and a cylindrical segment (101b), the radius of the spherical segment (101a) is consistent with the radius of the ball (20), and the diameter of the cylindrical segment (101b) is consistent with the diameter of the ball (20).

4. A double-sided corrugated washer as claimed in claim 3, wherein: The spherical segment (101a) is in junction with the lower surface of the gasket body (10), and the cylindrical segment (101b) is in junction with the upper surface of the gasket body (10).

5. A double-sided corrugated washer as defined in claim 4, wherein: The upper surface of the gasket body (10) is further fixedly provided with a clamping block (40), the clamping block (40) is arranged in the mounting hole (101), and the clamping block (40) is in contact with the ball (20).

6. A double-sided corrugated washer as defined in claim 5, wherein: The diameter of the clamping block (40) is not less than the diameter of the mounting hole (101).

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