Wear-resistant sealing gasket

Abstract

The utility model belongs to the field of sealing gaskets, and particularly relates to a wear-resistant sealing gasket which comprises a gasket body, one side of the gasket body is fixedly connected with a first non-metal gasket, the other side of the first non-metal gasket is fixedly connected with a second non-metal gasket, and an inner cavity of the gasket body is fixedly connected with a positioning assembly. A prompting mechanism is arranged in an inner cavity of the gasket body. The prompting mechanism, the extrusion block, the pressing rod and the first inclined block are integrally formed, when the thickness of the first non-metal gasket and the second non-metal gasket is reduced after long-time use until equipment extrudes the extrusion block, the extrusion block pushes the first inclined block, and due to the fact that the inclined face of the first inclined block and the inclined face of the second inclined block are attached to each other, the first inclined block and the second inclined block are tightly attached to each other. The first inclined block pushes the second inclined block, the second inclined block pushes the ejector rod to eject the falling block out, and an operator can know the abrasion degree of the gasket when observing falling of the falling block.

Description

Technical Field

[0001] The utility model relates to the field of sealing gaskets, in particular to a wear-resistant sealing gasket. Background Art

[0002] Wear-resistant sealing gaskets are spare parts used in connection parts of machinery, equipment, pipelines, etc., which achieve sealing effect through their deformation. According to different materials, wear-resistant sealing gaskets can be divided into many types, such as metal sealing gaskets (such as copper gaskets, stainless steel gaskets, etc.) and non-metallic sealing gaskets (such as rubber gaskets, polytetrafluoroethylene gaskets, etc.). Among them, rubber gaskets and polytetrafluoroethylene gaskets in non-metallic sealing gaskets are widely used due to their good wear resistance.

[0003] Wear-resistant sealing gaskets are widely used. For example, in chemical equipment, wear-resistant sealing gaskets can be used to prevent leakage of corrosive media. In the petroleum industry, it can be used for pipeline and equipment connections under high temperature and high pressure environments. Most of the non-metallic gaskets on the surface of wear-resistant sealing gaskets are worn out after long-term use, causing their thickness to gradually become thinner. If the degree of wear of the non-metallic gasket is not known in time and the non-metallic gasket is not replaced in time, the thickness of the non-metallic gasket will be repeatedly reduced, which will affect the sealing effect between equipment, reduce the practicality of the gasket, and cause leakage at the connection of the equipment. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, the non-metallic gaskets on the surface of most wear-resistant sealing gaskets are worn out after long-term use, so that their thickness gradually becomes thinner. If the wear degree of the non-metallic gasket cannot be known in time and the non-metallic gasket cannot be replaced in time, the thickness of the non-metallic gasket will be repeatedly reduced, which will affect the sealing effect between the equipment, resulting in reduced practicality of the gasket and leakage at the connection of the equipment. The utility model proposes a wear-resistant sealing gasket.

[0005] The utility model solves the technical problem by adopting the following technical solution: a wear-resistant sealing gasket, comprising a gasket body, a first non-metallic gasket is fixedly connected to one side of the gasket body, a second non-metallic gasket is fixedly connected to the other side of the first non-metallic gasket, a positioning assembly is fixedly connected to the inner cavity of the gasket body, and a prompt mechanism is arranged in the inner cavity of the gasket body;

[0006] The prompt mechanism includes an extrusion block, the surface of the extrusion block is slidably connected to the inner cavity of the gasket body, one side of the extrusion block is fixedly connected to a first limiting plate, the surface of the first limiting plate is slidably connected to the inner wall of the gasket body, the other side of the first limiting plate is fixedly connected to a pressure rod, the other end of the pressure rod is fixedly connected to a first inclined block, the inner cavity of the gasket body is slidably connected to a push rod, the surface of the push rod is fixedly connected to a second limiting plate, the surface of the second limiting plate is slidably connected to the inner wall of the gasket body, one end of the push rod is fixedly connected to a second inclined block, the inclined surface of the second inclined block is fitted with the inclined surface of the first inclined block, and a drop block is inserted into the inner cavity of the gasket body, and one side of the drop block is fitted to the other end of the push rod.

[0007] Preferably, a first spring is sleeved on the surface of the push rod, one end of the first spring is fixedly connected to the inner wall of the gasket body, and the other end of the first spring is fixedly connected to one side of the second limiting plate.

[0008] Preferably, avoidance holes are provided on the surfaces of the first non-metallic gasket and the second non-metallic gasket, and the inner walls of the avoidance holes are sleeved on the surface of the extrusion block.

[0009] Preferably, the first non-metallic gasket and the second non-metallic gasket are both semicircular in shape, one side of the first non-metallic gasket and the second non-metallic gasket are fixedly connected to a mounting plate, the other side of the first non-metallic gasket and the second non-metallic gasket are provided with a mounting groove, and the surface of the mounting plate is inserted into the inner wall of the mounting groove.

[0010] Preferably, the material of the gasket body is stainless steel, the material of the first non-metallic gasket is rubber, and the material of the second non-metallic gasket is polytetrafluoroethylene.

[0011] Preferably, the positioning assembly includes a positioning column, the surface of the positioning column is slidably connected to the inner cavity of the gasket body, one end of the positioning column is fixedly connected to a third limit plate, the surface of the third limit plate is slidably connected to the inner wall of the gasket body, the other side of the third limit plate is fixedly connected to a second spring, the other end of the second spring is fixedly connected to the inner wall of the gasket body, the inner cavity of the gasket body is fixedly connected to a guide rod, and the surface of the guide rod is slidably connected to the inner cavity of the third limit plate.

[0012] Preferably, positioning holes are provided on the surfaces of the first non-metallic gasket and the second non-metallic gasket, and the inner walls of the positioning holes are slidably connected to the surfaces of the positioning posts.

[0013] The utility model is beneficial in that:

[0014] The utility model uses a prompting mechanism, an extrusion block, a pressure rod and a first inclined block as an integral part, and limits the position through a first limiting plate. When the thickness of the first non-metallic gasket and the second non-metallic gasket decreases after long-term use, until the equipment is squeezed to the extrusion block, the extrusion block pushes the first inclined block. Since the inclined surface of the first inclined block fits the inclined surface of the second inclined block, the first inclined block pushes the second inclined block, and the second inclined block pushes the push rod to push the falling block out. When the operator observes the falling of the falling block, the degree of wear of the gasket can be known, so that the non-metallic gasket can be replaced in time to ensure the sealing effect of the equipment. This solves the problem that the non-metallic gaskets on the surface of most wear-resistant sealing gaskets are worn after long-term use, so that their thickness gradually becomes thinner. If the degree of wear of the non-metallic gasket cannot be known in time and the non-metallic gasket cannot be replaced in time, the thickness of the non-metallic gasket will be repeatedly reduced, which will affect the sealing effect between the equipment, resulting in reduced practicality of the gasket and leakage at the connection of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the prompting mechanism of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the positioning component of the utility model.

[0020] In the figure: 1. gasket body; 2. first non-metallic gasket; 3. second non-metallic gasket; 4. prompt mechanism; 401. extrusion block; 402. first limit plate; 403. pressure rod; 404. first inclined block; 405. push rod; 406. second limit plate; 407. second inclined block; 408. drop block; 5. first spring; 6. avoidance hole; 7. mounting plate; 8. mounting groove; 9. positioning assembly; 901. positioning column; 902. third limit plate; 903. second spring; 904. guide rod; 10. positioning hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The following is combined with Figure 1-4 To further explain this application in detail,

[0023] The present application discloses a wear-resistant sealing gasket. Figures 1 to 3 A wear-resistant sealing gasket comprises a gasket body 1, a first non-metallic gasket 2 is fixedly connected to one side of the gasket body 1, a second non-metallic gasket 3 is fixedly connected to the other side of the first non-metallic gasket 2, a positioning component 9 is fixedly connected to the inner cavity of the gasket body 1, and a prompt mechanism 4 is provided in the inner cavity of the gasket body 1;

[0024] The prompt mechanism 4 includes an extrusion block 401, the surface of the extrusion block 401 is slidably connected to the inner cavity of the gasket body 1, the surfaces of the first non-metallic gasket 2 and the second non-metallic gasket 3 are both provided with avoidance holes 6, the inner wall of the avoidance hole 6 is sleeved on the surface of the extrusion block 401, one side of the extrusion block 401 is fixedly connected to a first limiting plate 402, the surface of the first limiting plate 402 is slidably connected to the inner wall of the gasket body 1, the other side of the first limiting plate 402 is fixedly connected to a pressure rod 403, and the pressure rod 403 is fixedly connected to the pressure rod 403. The other end of the gasket body 1 is fixedly connected to the first inclined block 404, the inner cavity of the gasket body 1 is slidably connected to the push rod 405, the surface of the push rod 405 is fixedly connected to the second limit plate 406, the surface of the second limit plate 406 is slidably connected to the inner wall of the gasket body 1, one end of the push rod 405 is fixedly connected to the second inclined block 407, the inclined surface of the second inclined block 407 is fitted to the inclined surface of the first inclined block 404, the inner cavity of the gasket body 1 is plugged with a drop block 408, and one side of the drop block 408 is fitted to the push rod 4 05, the wear-resistant sealing gasket is designed to solve the problem that it is inconvenient to know the degree of wear and replace it in time with traditional gaskets. The gasket body 1 plays a major supporting role. The first non-metallic gasket 2 and the second non-metallic gasket 3 can contact the equipment to seal the equipment. The extrusion block 401, the pressure rod 403 and the first inclined block 404 are integrally formed, and the position is limited by the first limiting plate 402. When the first non-metallic gasket 2 and the second non-metallic gasket 3 are reduced in thickness after long-term use, until the equipment is squeezed to the extrusion block 401, the extrusion block 401 pushes the first inclined block 404. Since the inclined surface of the first inclined block 404 and the inclined surface of the second inclined block 407 fit each other, the first inclined block 404 pushes the second inclined block 407, and the second inclined block 407 pushes the push rod 405 to push out the drop block 408. When the operator observes the drop of the drop block 408, the degree of wear of the gasket can be known, so that the non-metallic gasket can be replaced in time to ensure the sealing effect of the equipment.

[0025] Reference Figure 3 A first spring 5 is sleeved on the surface of the push rod 405, one end of the first spring 5 is fixedly connected to the inner wall of the gasket body 1, and the other end of the first spring 5 is fixedly connected to one side of the second limit plate 406. Through the provision of the first spring 5, the second inclined block 407 pushes the push rod 405 while squeezing the first spring 5. After the non-metallic gasket is replaced, the push rod 405, the second inclined block 407 and the squeezing block 401 can be reset by the rebound of the first spring 5.

[0026] Reference Figure 1 and Figure 2The first non-metallic gasket 2 and the second non-metallic gasket 3 are both semicircular in shape, and one side of the first non-metallic gasket 2 and the second non-metallic gasket 3 is fixedly connected to a mounting plate 7, and the other side of the first non-metallic gasket 2 and the second non-metallic gasket 3 is provided with a mounting groove 8, and the surface of the mounting plate 7 is plugged into the inner wall of the mounting groove 8. Through the arranged mounting plate 7 and the mounting groove 8, the first non-metallic gasket 2 and the second non-metallic gasket 3 are both semicircular in shape, and are formed into a full circular gasket through two semicircular non-metallic gaskets. The cooperation of the mounting plate 7 and the mounting groove 8 can fix the non-metallic gasket horizontally to avoid separation as much as possible.

[0027] Reference Figure 1 The material of the gasket body 1 is stainless steel, the material of the first non-metallic gasket 2 is rubber, and the material of the second non-metallic gasket 3 is polytetrafluoroethylene. The stainless steel gasket body 1 as the basis has the characteristics of high corrosion resistance and high strength. The sealing effect of the gasket is improved by the first non-metallic gasket 2 made of rubber. The second non-metallic gasket 3 made of polytetrafluoroethylene has the characteristics of corrosion resistance, high temperature resistance and high wear resistance, thereby ensuring the wear resistance of the gasket.

[0028] Reference Figure 2 and Figure 4 The positioning assembly 9 includes a positioning column 901, the surface of the positioning column 901 is slidably connected to the inner cavity of the gasket body 1, one end of the positioning column 901 is fixedly connected to a third limiting plate 902, the surface of the third limiting plate 902 is slidably connected to the inner wall of the gasket body 1, the other side of the third limiting plate 902 is fixedly connected to a second spring 903, the other end of the second spring 903 is fixedly connected to the inner wall of the gasket body 1, the inner cavity of the gasket body 1 is fixedly connected to a guide rod 904, the surface of the guide rod 904 is slidably connected to the inner cavity of the third limiting plate 902, the surfaces of the first non-metallic gasket 2 and the second non-metallic gasket 3 are both provided with positioning holes 10, and the positioning The inner wall of the hole 10 is slidably connected to the surface of the positioning column 901. Through the positioning component 9, the positioning component 9 can quickly position and connect the first non-metallic gasket 2 and the second non-metallic gasket 3 to the surface of the gasket body 1. When the first non-metallic gasket 2 and the second non-metallic gasket 3 are worn and thinned, the positioning column 901 can also change the extension length. The positioning column 901 is limited to the inner cavity of the gasket body 1 by the third limiting plate 902, and when the positioning column 901 is squeezed, the second spring 903 is squeezed. At the same time, the second spring 903 can subsequently reset the positioning column 901, and the stability of the connection of the positioning column 901 can be improved through the guide rod 904.

[0029] Working principle: The gasket body 1 plays the main supporting role. The first non-metallic gasket 2 and the second non-metallic gasket 3 are quickly connected to the gasket body 1 through the positioning hole 10 to form a whole. The first non-metallic gasket 2 and the second non-metallic gasket 3 can be in contact with the equipment to seal the equipment. The extrusion block 401, the pressure rod 403 and the first inclined block 404 are integrally formed, and the position is limited by the first limiting plate 402. When the thickness of the first non-metallic gasket 2 and the second non-metallic gasket 3 is reduced after long-term use, until the equipment is squeezed to the extrusion block 401 When the first non-metallic gasket 2 and the second non-metallic gasket 3 are worn and thinned, the positioning column 901 can also change the extension length, and the extrusion block 401 pushes the first inclined block 404. Since the inclined surface of the first inclined block 404 and the inclined surface of the second inclined block 407 fit each other, the first inclined block 404 pushes the second inclined block 407, and the second inclined block 407 pushes the push rod 405 to push out the drop block 408. When the operator observes the drop of the drop block 408, the degree of wear of the gasket can be known, so as to replace the non-metallic gasket in time to ensure the sealing effect of the equipment.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A wear-resistant sealing gasket, characterized in that: The invention comprises a gasket body (1), a first non-metallic gasket (2) being fixedly connected to one side of the gasket body (1), a second non-metallic gasket (3) being fixedly connected to the other side of the first non-metallic gasket (2), a positioning assembly (9) being fixedly connected to the inner cavity of the gasket body (1), and a prompting mechanism (4) being provided in the inner cavity of the gasket body (1); The prompt mechanism (4) comprises an extrusion block (401), the surface of which is slidably connected to the inner cavity of the gasket body (1), one side of the extrusion block (401) is fixedly connected to a first limiting plate (402), the surface of which is slidably connected to the inner wall of the gasket body (1), the other side of the first limiting plate (402) is fixedly connected to a pressure rod (403), the other end of which is fixedly connected to a first inclined block (404), the inner cavity of the gasket body (1) is slidably connected to the first limiting plate (402), and the pressure rod (403) is fixedly connected to the inner wall of the gasket body (1). A push rod (405) is movably connected to the gasket body (1), and a second limit plate (406) is fixedly connected to the surface of the push rod (405), and the surface of the second limit plate (406) is slidably connected to the inner wall of the gasket body (1). One end of the push rod (405) is fixedly connected to a second inclined block (407), and the inclined surface of the second inclined block (407) is fitted to the inclined surface of the first inclined block (404). A drop block (408) is inserted into the inner cavity of the gasket body (1), and one side of the drop block (408) is fitted to the other end of the push rod (405).

2. The wear-resistant sealing gasket according to claim 1, characterized in that: A first spring (5) is sleeved on the surface of the push rod (405), one end of the first spring (5) is fixedly connected to the inner wall of the gasket body (1), and the other end of the first spring (5) is fixedly connected to one side of the second limiting plate (406).

3. The wear-resistant sealing gasket according to claim 1, characterized in that: The surfaces of the first non-metallic gasket (2) and the second non-metallic gasket (3) are both provided with avoidance holes (6), and the inner walls of the avoidance holes (6) are sleeved on the surface of the extrusion block (401).

4. The wear-resistant sealing gasket according to claim 1, characterized in that: The first non-metallic gasket (2) and the second non-metallic gasket (3) are both semicircular in shape; one side of the first non-metallic gasket (2) and the second non-metallic gasket (3) is fixedly connected to a mounting plate (7); the other side of the first non-metallic gasket (2) and the second non-metallic gasket (3) is provided with a mounting groove (8); the surface of the mounting plate (7) is plugged into the inner wall of the mounting groove (8).

5. The wear-resistant sealing gasket according to claim 1, characterized in that: The material of the gasket body (1) is stainless steel, the material of the first non-metallic gasket (2) is rubber, and the material of the second non-metallic gasket (3) is polytetrafluoroethylene.

6. The wear-resistant sealing gasket according to claim 1, characterized in that: The positioning assembly (9) comprises a positioning column (901), the surface of which is slidably connected to the inner cavity of the gasket body (1), one end of which is fixedly connected to a third limiting plate (902), the surface of which is slidably connected to the inner wall of the gasket body (1), the other side of which is fixedly connected to a second spring (903), the other end of which is fixedly connected to the inner wall of the gasket body (1), the inner cavity of the gasket body (1) is fixedly connected to a guide rod (904), the surface of which is slidably connected to the inner cavity of the third limiting plate (902).

7. The wear-resistant sealing gasket according to claim 6, characterized in that: Positioning holes (10) are provided on the surfaces of the first non-metallic gasket (2) and the second non-metallic gasket (3), and the inner walls of the positioning holes (10) are slidably connected to the surface of the positioning column (901).

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