A type of corrugated metal gasket

Abstract

The utility model relates to the technical field of gaskets, and discloses a metal corrugated gasket, including a gasket body, a through groove is provided in the middle of the upper end face of the gasket body, a plurality of rubber protrusions are fixedly provided around the inner wall of the through groove, a ring block is fixedly provided near the middle of the upper end face of the gasket body, grooves are provided at both the front and rear sides of the upper end face of the ring block, four protrusions are fixedly provided near the periphery of the upper end face of the gasket body, and the gasket body includes two metal layers and a graphite filling layer. In the utility model, the gasket is provided with protrusions and ring blocks on the surface, all of which are provided with irregular structures, so as to reduce the possibility of sliding when performing a sealing connection, thereby reducing the possibility of incomplete sealing of the gasket body due to sliding, and a wear-resistant layer, a high-temperature-resistant layer and a pressure-resistant layer are provided on the surface to increase the service life of the metal gasket and protect the gasket body.

Description

Technical Field

[0001] The utility model relates to the technical field of gaskets, in particular to a metal corrugated gasket. Background Art

[0002] Metal corrugated gasket is a special shape gasket made of metal material. It adopts a corrugated design and is usually made of thin sheet metal (such as stainless steel, copper, aluminum, etc.). It looks like a series of wavy circles or spirals. Metal corrugated gasket has the characteristics of elastic deformation, sealing performance and corrosion resistance. Metal corrugated gasket is widely used in industrial fields, especially in pipeline connection, assembly and other fields, to provide sealing performance or fill the gap between connection surfaces.

[0003] Existing metal corrugated gaskets often achieve sealing by extrusion when performing connection sealing. Since the gasket surface is relatively smooth, it often slides between the two connected objects, affecting the sealing effect. In addition, the existing metal corrugated gaskets have poor corrosion resistance and are easily corroded, which reduces their service life.

[0004] Therefore, the utility model provides a metal corrugated gasket to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a metal corrugated gasket, which is provided with bumps and ring blocks on the surface, all of which are arranged in irregular structures, so as to reduce the possibility of sliding when performing sealing connection, thereby reducing the possibility of incomplete sealing caused by sliding of the gasket body, and providing a wear-resistant layer, a high-temperature resistant layer and a pressure-resistant layer on the surface to increase the service life of the metal gasket and protect the gasket body.

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

[0007] A metal corrugated gasket, comprising a gasket body, a through groove is provided in the middle of the upper end surface of the gasket body, a plurality of rubber protrusions are fixedly provided on the inner wall of the through groove, a ring block is fixedly provided in the middle of the upper end surface of the gasket body, grooves are provided on both sides of the upper end surface of the ring block, and four protrusions are fixedly provided on the periphery of the upper end surface of the gasket body;

[0008] The gasket body comprises two metal layers and a graphite filling layer, and the first corrugated layer and the second corrugated layer are respectively arranged on opposite sides of the two metal layers;

[0009] The metal layer comprises a metal base layer, a pressure-resistant layer is fixedly arranged on the upper end surface of the metal base layer, a high-temperature-resistant layer is fixedly arranged on the upper end surface of the pressure-resistant layer, and a corrosion-resistant layer is fixedly arranged on the upper end surface of the high-temperature-resistant layer;

[0010] Through the above technical scheme, a rubber protrusion is arranged on the inner surface of the through groove of the gasket body. When the gasket is sealed and connected, the rubber protrusion has a certain deformation ability and can clamp the connection object, making the gasket connection more stable. The gasket body is provided with a protrusion and a ring block on the upper end surface, and grooves are provided on both the front and rear sides of the upper end surface of the ring block. The protrusion is arranged to be an irregular corrugated type, which reduces the possibility of sliding during the sealing connection, thereby reducing the possibility of incomplete sealing of the gasket body due to sliding. In addition, a wear-resistant layer, a high-temperature resistant layer and a pressure-resistant layer are arranged on the surface of the metal layer of the gasket body to increase the service life of the metal gasket and protect the gasket body.

[0011] Furthermore, blocks are fixedly provided on both sides of the lower end surface of the second corrugated layer, and the two blocks penetrate into the interior of the first corrugated layer;

[0012] Through the above technical solution, the first corrugated layer and the second corrugated layer are connected and limited by the clamping block, so that the two are more stable.

[0013] Furthermore, the pressure-resistant layer is configured as a titanium coating;

[0014] Through the above technical solution, the titanium coating has good corrosion resistance and high strength, and can be used to enhance the compressive resistance of metal materials.

[0015] Further, the high temperature resistant layer is provided as a molybdenum carbide coating;

[0016] Through the above technical solution, the molybdenum carbide coating has super wear resistance, corrosion resistance and high temperature resistance.

[0017] Further, the corrosion-resistant layer is configured as an acrylic coating;

[0018] Through the above technical solution, the acrylic coating has extremely strong corrosion resistance, wear resistance and chemical resistance properties.

[0019] Further, the graphite filling layer is arranged between the first corrugated layer and the second corrugated layer;

[0020] Through the above technical scheme, the graphite filling layer has a buffering and lubricating effect, which can prevent wear between the first corrugated layer and the second corrugated layer. At the same time, the graphite filling layer also has a supporting and connecting function, and can connect the first corrugated layer and the second corrugated layer.

[0021] Furthermore, the four protrusions are all configured as corrugated shapes;

[0022] Through the above technical solution, by setting the protrusion to be corrugated, the area of ​​the protrusion can be increased, and the protrusion is irregular in shape, which reduces the possibility of sliding during sealing connection.

[0023] The utility model has the following beneficial effects:

[0024] 1. The utility model proposes a metal corrugated gasket, in which a rubber protrusion is arranged on the inner surface of the through groove of the gasket body. When the gasket is sealed and connected, the rubber protrusion has a certain deformation ability and can clamp the connection object, making the gasket connection more stable. The gasket body is provided with a protrusion and a ring block on the upper end surface, and grooves are provided on both the front and rear sides of the upper end surface of the ring block. The protrusion is arranged in an irregular corrugated shape, which reduces the possibility of sliding when the sealing connection is performed, thereby reducing the possibility of incomplete sealing caused by sliding of the gasket body.

[0025] 2. The utility model proposes a metal corrugated gasket, which has a wear-resistant layer and an acrylic coating on the surface of the metal layer of the gasket body, so that the surface of the gasket body has good corrosion resistance, a high-temperature resistant layer and a molybdenum carbide coating are provided to improve the high-temperature resistance of the metal surface, and a compression-resistant layer and a titanium coating are provided to enhance the compression resistance of the gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an axonometric schematic diagram of the utility model;

[0027] Figure 2 It is a top view of the utility model;

[0028] Figure 3 It is a front cross-sectional schematic diagram of the utility model;

[0029] Figure 4 It is an enlarged schematic diagram of point A of the utility model;

[0030] Figure 5 It is a schematic structural diagram of the metal surface layer of the utility model.

[0031] Legend:

[0032] 1. Gasket body; 2. Rubber protrusion; 3. Bump; 4. Ring block; 5. Groove; 6. Through groove; 101. Metal layer; 102. First corrugated layer; 103. Second corrugated layer; 104. Graphite filling layer; 105. Block; 10101. Metal base layer; 10102. High temperature resistant layer; 10103. Pressure resistant layer; 10104. Corrosion resistant layer. DETAILED DESCRIPTION

[0033] 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.

[0034] Example

[0035] Reference Figure 1-5 , the utility model provides an embodiment: a metal corrugated gasket, including a gasket body 1, a through groove 6 is provided in the middle of the upper end surface of the gasket body 1, and a plurality of rubber protrusions 2 are fixedly arranged around the inner wall of the through groove 6. Since the rubber protrusions 2 have a certain deformation ability, a certain clamping force can be provided when the gasket body 1 is sleeved on the connection object, so that the connection of the gasket body 1 is more stable, a ring block 4 is fixedly arranged near the middle of the upper end surface of the gasket body 1, and grooves 5 are provided at both sides of the upper end surface of the ring block 4. The grooves 5 are provided on the ring block 4, so that the surface of the ring block 4 is irregular, which plays a certain anti-slip role when the gasket is connected, and four protrusions 3 are fixedly arranged near the periphery of the upper end surface of the gasket body 1;

[0036] The gasket body 1 includes two metal layers 101 and a graphite filling layer 104. The graphite filling layer 104 can play a lubricating and supporting role between the first corrugated layer 102 and the second corrugated layer 103. The first corrugated layer 102 and the second corrugated layer 103 are respectively arranged on opposite sides of the two metal layers 101.

[0037] The metal layer 101 includes a metal base layer 10101, a pressure-resistant layer 10102 is fixedly arranged on the upper end surface of the metal base layer 10101, a high-temperature-resistant layer 10103 is fixedly arranged on the upper end surface of the pressure-resistant layer 10102, and a corrosion-resistant layer 10104 is fixedly arranged on the upper end surface of the high-temperature-resistant layer 10103. A rubber protrusion 2 is arranged on the inner surface of the through groove 6 of the gasket body 1. When the gasket is sealed and connected, the rubber protrusion 2 has a certain deformation ability and can clamp the connection object, making the gasket connection more stable. The main body 1 is provided with a protrusion 3 and a ring block 4 on the upper end surface, and grooves 5 are opened on both the front and rear sides of the upper end surface of the ring block 4. The protrusion 3 is arranged to be an irregular corrugated shape to reduce the possibility of sliding during sealing connection, thereby reducing the possibility of incomplete sealing of the gasket body 1 due to sliding, and a wear-resistant layer 10104, a high temperature resistant layer 10102 and a pressure-resistant layer 101102 are arranged on the surface of the metal layer 101 of the gasket body 1 to increase the service life of the metal gasket and protect the gasket body 1.

[0038] Blocks 105 are fixedly arranged on both sides of the lower end surface of the second corrugated layer 103, and the two blocks 105 penetrate into the first corrugated layer 102. The first corrugated layer 102 and the second corrugated layer 103 are connected and limited by the blocks 105, so that the two are more stable. The pressure-resistant layer 10102 is set as a titanium coating. The titanium coating has good corrosion resistance and high strength, and can be used to enhance the pressure resistance of metal materials. The high-temperature resistant layer 10103 is set as a molybdenum carbide coating. The molybdenum carbide coating has super strong wear resistance, corrosion resistance and high temperature resistance. The corrosion-resistant layer 10104 is set as an acrylate coating. The acrylate coating has It has extremely strong corrosion resistance, wear resistance and chemical resistance. The graphite filling layer 104 is arranged between the first corrugated layer 102 and the second corrugated layer 103. The graphite filling layer 104 has a buffering and lubricating effect, which can prevent wear between the first corrugated layer 102 and the second corrugated layer 103. At the same time, the graphite filling layer 104 also has a supporting and connecting function, and the first corrugated layer 102 and the second corrugated layer 103 can be connected. The four protrusions 3 are all set to be corrugated. By setting the protrusions 3 to be corrugated, the area of ​​the protrusions 3 can be increased, and the protrusions 3 are irregularly shaped, which reduces the possibility of sliding during sealing connection.

[0039] Working principle: When two connecting objects are connected, the gasket body 1 can be placed between the two connecting objects. The protrusions 3 and the ring blocks 4 on the surface of the gasket body 1 provide anti-slip protection against the connecting objects, so that the gasket body 1 will not slide easily. The surface of the metal layer 101 of the gasket body 1 is provided with a wear-resistant layer 10104, a high temperature resistant layer 10102 and a pressure-resistant layer 101102, which increase the service life of the metal gasket and protect the gasket body 1.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal corrugated gasket, comprising a gasket body (1), characterized in that: A through groove (6) is provided in the middle of the upper end surface of the gasket body (1), and a plurality of rubber protrusions (2) are fixedly provided around the inner wall of the through groove (6). A ring block (4) is fixedly provided near the middle of the upper end surface of the gasket body (1), and grooves (5) are provided at both the front and rear sides of the upper end surface of the ring block (4). Four protrusions (3) are fixedly provided near the periphery of the upper end surface of the gasket body (1); The gasket body (1) comprises two metal layers (101) and a graphite filling layer (104), and a first corrugated layer (102) and a second corrugated layer (103) are respectively arranged on opposite sides of the two metal layers (101); The metal layer (101) comprises a metal base layer (10101), a pressure-resistant layer (10102) is fixedly arranged on the upper end surface of the metal base layer (10101), a high-temperature-resistant layer (10103) is fixedly arranged on the upper end surface of the pressure-resistant layer (10102), and a corrosion-resistant layer (10104) is fixedly arranged on the upper end surface of the high-temperature-resistant layer (10103).

2. A metal corrugated gasket according to claim 1, characterized in that: Blocks (105) are fixedly arranged on both sides of the lower end surface of the second corrugated layer (103), and the two blocks (105) penetrate into the interior of the first corrugated layer (102).

3. A metal corrugated gasket according to claim 1, characterized in that: The pressure-resistant layer (10102) is configured as a titanium coating.

4. A metal corrugated gasket according to claim 1, characterized in that: The high temperature resistant layer (10103) is configured as a molybdenum carbide coating.

5. A metal corrugated gasket according to claim 1, characterized in that: The corrosion-resistant layer (10104) is configured as an acrylate coating.

6. A metal corrugated gasket according to claim 1, characterized in that: The graphite filling layer (104) is arranged between the first corrugated layer (102) and the second corrugated layer (103).

7. A metal corrugated gasket according to claim 1, characterized in that: The four protrusions (3) are all configured to be corrugated.

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