Ethylene propylene diene monomer gasket structure

Abstract

The utility model relates to the technical field of rubber gaskets, in particular to an ethylene propylene diene monomer gasket structure which comprises a main rubber body, a vibration reduction buffering mechanism is arranged in the main rubber body, the vibration reduction buffering mechanism comprises a resisting inner cavity formed in the main rubber body, and the diameter of the top of the resisting inner cavity is smaller than that of the bottom of the resisting inner cavity. A plurality of groups of side grooves are formed in the inner side wall of the resisting inner cavity, side flanges are embedded in the side grooves, auxiliary rubber bodies are fixedly connected to the sides, away from the main rubber body, of the side flanges, the side flanges are arranged in the resisting inner cavity, the top diameter of each auxiliary rubber body is smaller than the bottom diameter of the auxiliary rubber body, and the top diameter of each auxiliary rubber body is larger than the inner diameter of the main rubber body. Through the cooperation of the main rubber body and the vibration reduction buffer mechanism, when the structure is arranged outside a pipeline in a sleeving mode, impact brought by the pipeline is firstly absorbed by the auxiliary rubber body and the side flanges, certain deformation and displacement are conducted in the resisting inner cavity and the side grooves, and therefore the impact brought to the main rubber body is relieved, and the service life of the pipeline is prolonged. And the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of rubber gasket technology, specifically to a ternary ethylene propylene diene monomer (EPDM) rubber gasket structure. Background Technology

[0002] Ethylene propylene diene monomer (EPDM) rubber is a copolymer of ethylene, propylene, and a small amount of non-conjugated diene, and is a type of ethylene propylene rubber. Because its main chain is composed of chemically stable saturated hydrocarbons and it only contains unsaturated double bonds in its side chains, it has excellent aging resistance, such as ozone resistance, heat resistance, and weather resistance. It can be widely used in automotive parts, waterproof building materials, wire and cable sheathing, heat-resistant hoses, tapes, automotive seals, and other fields.

[0003] Rubber gaskets have a relatively simple structure. Existing rubber gaskets have limited shock absorption and impact resistance during use, which can cause some damage to the gasket itself. When the fluid in the pipeline flows unevenly, it will cause the pipeline to vibrate. The vibration of the pipeline will cause the gasket to be subjected to impact force. The rubber gaskets currently in use are difficult to buffer the impact force, which reduces the service life of the gasket.

[0004] Therefore, it is necessary to invent a ternary propylene diene monomer (EPDM) rubber gasket structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a EPDM rubber gasket structure that improves the service life of the gasket by combining the main rubber body with the vibration damping and buffering mechanism, thereby solving the problem that rubber gaskets in the prior art are difficult to buffer impact forces.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ternary ethylene propylene diene monomer (EPDM) rubber gasket structure, comprising a main body, wherein a vibration damping and buffering mechanism is provided inside the main body, the vibration damping and buffering mechanism including a damping cavity formed inside the main body, the top diameter of the damping cavity being smaller than its bottom diameter, a plurality of side grooves being formed on the inner sidewall of the damping cavity, a side flange being fitted inside the side groove, and a secondary body being fixedly connected to the side of the side flange away from the main body, the side flange being disposed inside the damping cavity, the top diameter of the secondary body being smaller than its bottom diameter, and the top diameter of the secondary body being larger than the inner diameter of the main body, thereby improving the service life of the damping cavity by utilizing the cooperation between the damping cavity and the secondary body to allow the secondary body to share a large amount of the impact from the pipeline.

[0007] Preferably, a top metal gasket is fixedly connected to the top end of the main colloid, and a bottom metal gasket is fixedly connected to the bottom end of the main colloid. The top and bottom metal gaskets are used to disperse the impact and keep the main colloid from deforming.

[0008] Preferably, a top adhesive is fixedly connected to the top of the top metal pad. The top diameter of the top adhesive is larger than its bottom diameter, and a chamfer is provided on the top edge of the top adhesive. The cooperation between the top adhesive and the chamfer creates a vacuum cavity when it comes into contact with the top item, thereby improving the cushioning capacity.

[0009] Preferably, the outer wall of the main colloid is provided with several sets of deformation grooves, and a side skirt is fixedly connected to the outer wall of the main colloid. The deformation grooves and the side skirts enhance its compressive strength and corrosion resistance.

[0010] Preferably, a reinforcing layer is fixedly connected to the inner wall of the side skirt, and an elastic layer is fixedly connected to one side of the reinforcing layer. The elastic layer is disposed on the inner side of the side skirt, and the strength of the main adhesive is initially improved by the cooperation of the reinforcing layer and the elastic layer.

[0011] Preferably, the elastic layer has several sets of elastic cavities inside, and elastic balls are disposed inside the elastic cavities. The strength of the main colloid is further improved by the elastic balls inside the elastic layer.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] By combining the main colloid with the vibration damping and buffering mechanism, when this structure is fitted outside the pipe, the impact from the pipe is first absorbed by the secondary colloid and the side flange, causing it to deform and shift within the inner cavity and side groove, thereby reducing the impact on the main colloid body. The inner cavity and side groove limit the deformation of the secondary colloid to reduce collisions between the secondary colloid and the inner cavity. At the same time, the combination of the top colloid and the chamfered part creates a vacuum cavity when in contact with the top item, improving the buffering capacity. During operation, the side skirts reduce the entry of moisture to prevent corrosion around the main colloid. The properties of the reinforcing layer and the elastic layer enhance the strength of the main colloid itself, thereby improving the impact resistance of the structure and extending its service life. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the internal structure of the main colloid of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Main colloid; 2. Vibration damping and buffering mechanism; 201. Resistance cavity; 202. Side groove; 203. Secondary colloid; 204. Side flange; 3. Top metal gasket; 4. Top colloid; 5. Chamfer; 6. Bottom metal gasket; 7. Deformation groove; 8. Side skirt; 9. Reinforcing layer; 10. Elastic layer. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] This utility model provides, for example Figure 1-4 The illustrated EPDM rubber gasket structure includes a main body 1. A vibration damping and buffering mechanism 2 is disposed inside the main body 1. The vibration damping and buffering mechanism 2 includes a damping cavity 201 formed inside the main body 1. The top diameter of the damping cavity 201 is smaller than its bottom diameter. Several sets of side grooves 202 are formed on the inner wall of the damping cavity 201. Side flanges 204 are fitted inside the side grooves 202. A secondary body 203 absorbs and restricts the deformation and displacement of the side flanges 204. The side flange 204 away from the main body 1 is fixedly connected to the secondary body 203. The side flange 204 is disposed inside the damping cavity 201. The top diameter of the secondary body 203 is smaller than its bottom diameter, and the top diameter of the secondary body 203 is larger than that of the main body 1. The inner diameter is adjusted to prevent the secondary colloid 203 from falling out. The cooperation between the inner cavity 201 and the secondary colloid 203 allows the secondary colloid 203 to share a large amount of the impact from the pipe, thereby improving the service life of the inner cavity 201. A top metal gasket 3 is fixedly connected to the top of the main colloid 1, and a bottom metal gasket 6 is fixedly connected to the bottom of the main colloid 1. The top metal gasket 3 and the bottom metal gasket 6 are used to disperse the impact to keep the main colloid 1 from deforming. A top colloid 4 is fixedly connected to the top of the top metal gasket 3. The top diameter of the top colloid 4 is larger than its bottom diameter. A chamfered part 5 is provided on the top edge of the top colloid 4. The cooperation between the top colloid 4 and the chamfered part 5 forms a vacuum cavity when it comes into contact with the top item to improve the cushioning capacity.

[0023] Refer to the instruction manual appendix Figure 1-4The outer wall of the main colloid 1 has several sets of deformation grooves 7. A side skirt 8 is fixedly connected to the outer wall of the main colloid 1. The cooperation between the deformation grooves 7 and the side skirt 8 enhances its compressive strength and corrosion resistance. A reinforcing layer 9 is fixedly connected to the inner wall of the side skirt 8. An elastic layer 10 is fixedly connected to one side of the reinforcing layer 9. The elastic layer 10 is located inside the side skirt 8. The cooperation between the reinforcing layer 9 and the elastic layer 10 initially improves the strength of the main colloid 1. Several sets of elastic cavities are formed inside the elastic layer 10, and elastic balls are set inside the elastic cavities. The elastic balls inside the elastic layer 10 further improve the strength of the main colloid 1. Through the cooperation between the main colloid 1 and the vibration damping and buffering mechanism 2, this structure can reduce the impact brought by the pipeline when it is sleeved outside the pipeline. First, the impact is absorbed by the secondary colloid 203 and the side flange 204, causing it to deform and shift within the inner cavity 201 and the side groove 202, thereby reducing the impact on the main colloid 1. The inner cavity 201 and the side groove 202 limit the deformation of the secondary colloid 203 to reduce the collision between the secondary colloid 203 and the inner cavity 201. At the same time, the cooperation between the top colloid 4 and the chamfered part 5 forms a vacuum cavity when it comes into contact with the top item, thereby improving the buffering capacity. During operation, the side skirt 8 reduces the entry of moisture to prevent corrosion around the main colloid 1. Meanwhile, the properties of the reinforcing layer 9 and the elastic layer 10 strengthen the main colloid 1 itself, thereby improving the impact resistance of the structure and extending its service life.

[0024] The working principle of this practical application is as follows:

[0025] Refer to the instruction manual appendix Figure 1-4 After the structure is fitted onto the outside of the pipe, the water flow will cause impact to the pipe during use. Through the cooperation of the main colloid 1 and the vibration damping and buffering mechanism 2, the impact is first absorbed by the secondary colloid 203 and the side flange 204, causing it to deform and displace within the inner cavity 201 and the side groove 202, thereby reducing the impact on the main colloid 1. The inner cavity 201 and the side groove 202 limit the deformation of the secondary colloid 203 to reduce the collision between the secondary colloid 203 and the inner cavity 201. At the same time, the cooperation between the top colloid 4 and the chamfered part 5 forms a vacuum cavity when it comes into contact with the top item to improve the buffering capacity. During operation, the side skirt 8 reduces the entry of water vapor to prevent corrosion around the main colloid 1. At the same time, the characteristics of the reinforcing layer 9 and the elastic layer 10 strengthen the main colloid 1 itself, thereby improving the impact resistance of the structure and extending its service life.

[0026] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A ternary ethylene propylene diene monomer (EPDM) rubber gasket structure, comprising a main colloid (1), characterized in that: The main colloid (1) is provided with a vibration damping and buffering mechanism (2). The vibration damping and buffering mechanism (2) includes a resisting cavity (201) opened inside the main colloid (1). The top diameter of the resisting cavity (201) is smaller than its bottom diameter. The inner sidewall of the resisting cavity (201) is provided with a number of side grooves (202). A side flange (204) is fitted inside the side groove (202). A secondary colloid (203) is fixedly connected to the side of the side flange (204) away from the main colloid (1). The side flange (204) is located inside the resisting cavity (201). The top diameter of the secondary colloid (203) is smaller than its bottom diameter. The top diameter of the secondary colloid (203) is larger than the inner diameter of the main colloid (1).

2. The EPDM rubber gasket structure according to claim 1, characterized in that: The top of the main colloid (1) is fixedly connected to a top metal gasket (3), and the bottom of the main colloid (1) is fixedly connected to a bottom metal gasket (6).

3. The EPDM rubber gasket structure according to claim 2, characterized in that: The top metal gasket (3) is fixedly connected to a top adhesive (4), the top diameter of the top adhesive (4) is larger than its bottom diameter, and the top edge of the top adhesive (4) is provided with a chamfer (5).

4. The EPDM rubber gasket structure according to claim 1, characterized in that: The outer side wall of the main colloid (1) is provided with several sets of deformation grooves (7), and the outer side wall of the main colloid (1) is fixedly connected with a side skirt (8).

5. The EPDM rubber gasket structure according to claim 4, characterized in that: The inner wall of the side skirt (8) is fixedly connected to a reinforcing layer (9), and an elastic layer (10) is fixedly connected to one side of the reinforcing layer (9). The elastic layer (10) is disposed on the inner side of the side skirt (8).

6. The EPDM rubber gasket structure according to claim 5, characterized in that: The elastic layer (10) has several sets of elastic cavities inside, and elastic balls are arranged inside the elastic cavities.

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