Tooth-shaped combined gasket

Abstract

The utility model relates to a tooth-shaped combined gasket which comprises a gasket body, the gasket body is in a circular ring shape, a plurality of concentric annular protrusions are evenly arranged on the gasket body, an annular groove is formed between every two adjacent annular protrusions, the annular protrusions and the annular grooves form a wave-shaped annular belt on the gasket body, and a buffering ring is connected to an inner hole of the gasket body in a clamped mode. Connecting pieces A are evenly arranged on the outer edge of the buffering ring along the circumference, butt joint grooves A corresponding to the connecting pieces A are formed in the gasket body along an inner hole, the connecting pieces A are connected with the butt joint grooves A, sealing rings covering the wave-shaped annular belt are arranged on the upper side and the lower side of the gasket body respectively, and the shape of the abutting faces of the sealing rings and the gasket body is matched with the shape of the wave-shaped annular belt. Connecting pieces B are evenly arranged on the outer edge and the inner edge of the sealing ring respectively along the circumference, butt joint grooves B corresponding to the connecting pieces B are formed in the gasket body, and the connecting pieces B are connected with the butt joint grooves B. The utility model has the advantages that the sealing effect is good, and the buffer ring and the sealing ring are convenient to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of gaskets, and particularly relates to a toothed combined gasket. Background Art

[0002] For a toothed combined gasket, a number of concentric grooves are machined on the upper and lower surfaces of a metal gasket, and a sealing layer is adhered to both sides of the gasket, which has a good sealing effect and is often used for the sealing of pressure vessels and pipeline flanges with medium, high pressure and high temperature.

[0003] For a traditional toothed combined gasket, the inner diameter of the inner hole is generally larger than the diameter length of the lower end of a fastener and the inner diameter of the mounting hole of a mounting part, which affects the sealing performance. Moreover, there are too many connection points between the sealing layer and the gasket, increasing the difficulty of installing and disassembling the sealing layer, and affecting the assembly efficiency and maintenance difficulty. Content of the Utility Model

[0004] The purpose of the utility model is to provide a toothed combined gasket, which has the advantages of good sealing effect, convenient installation and disassembly of the buffer ring and the sealing ring.

[0005] The technical solution of the utility model is as follows:

[0006] A toothed combined gasket includes a gasket body. The gasket body is in a circular ring shape. A number of concentric annular protrusions are evenly arranged on the gasket body. An annular groove is arranged between adjacent annular protrusions. The annular protrusions and the annular grooves form a wavy ring belt on the gasket body. A buffer ring is clamped on the inner hole of the gasket body. Connecting pieces A are evenly arranged along the circumference on the outer edge of the buffer ring. The gasket body is provided with a docking groove A corresponding to the connecting pieces A along the inner hole. The connecting pieces A are connected with the docking groove A. Sealing rings covering the wavy ring belt are respectively arranged on the upper and lower sides of the gasket body. The shape of the contact surface of the sealing ring with the gasket body fits the shape of the wavy ring belt. Connecting pieces B are evenly arranged along the circumference on the outer edge and the inner edge of the sealing ring respectively. The gasket body is provided with a docking groove B corresponding to the connecting pieces B. The connecting pieces B are connected with the docking groove B.

[0007] Preferably, the shapes of the connecting pieces A and the connecting pieces B are isosceles trapezoids.

[0008] Preferably, the number of the connecting pieces A on the buffer ring is 4, the number of the connecting pieces B on the inner edge of the sealing ring is 4, and the number of the connecting pieces B on the outer edge of the sealing ring is 4.

[0009] Preferably, the connecting pieces A and the docking groove A, and the connecting pieces B and the docking groove B are adhered by glue.

[0010] The beneficial technical effects of the utility model are:

[0011] 1. When the toothed combined gasket is installed between the fastener and the mounting part, due to the elasticity of the buffer ring and the sealing ring itself, the upper and lower sides of the gasket body can better fit the fastener and the mounting part, and the inner hole of the gasket body can better fit the lower end of the fastener inserted therein, improving the sealing effect.

[0012] 2. The buffer ring and the sealing ring are convenient to be installed on and removed from the gasket body, improving production efficiency and facilitating after-sales maintenance; the connecting piece A and the connecting piece B respectively provide a firm connection between the buffer ring and the sealing ring and the gasket body, preventing the buffer ring and the sealing ring from falling off the gasket body due to accidents such as collision and impact. The buffer ring props on the inner hole of the gasket body through its own elasticity and the cooperation between the shape of its outer edge and the shape of the inner hole of the gasket. The sealing ring utilizes its own elasticity and the shape of its abutting surface with the gasket body to fit the shape of the wavy annular band, so that the two sealing rings are respectively stuck at the wavy annular bands on the upper and lower sides of the gasket body. The part connected to the gasket body by elasticity has a certain connection strength and is convenient to install and remove, reducing the installation and removal difficulty of the buffer ring and the sealing ring. When installing the buffer ring and the sealing ring on the gasket body, only the installation of the connecting piece A and the connecting piece B requires a certain amount of work, improving the assembly efficiency. When the buffer ring and the sealing ring are damaged and need to be replaced, only the connection between the connecting piece A and the docking groove A and the connection between the connecting piece B and the docking groove B need to be released, and then the old buffer ring and sealing ring can be conveniently removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The technical solution of the present utility model will be further described below with reference to the drawings.

[0014] FIG Figure 1 is a top view of the present utility model.

[0015] FIG Figure 2 is a sectional view of the main perspective of the present utility model.

[0016] FIG Figure 3 is a top view of the gasket body.

[0017] FIG Figure 4 is a sectional view of the main perspective of the gasket body.

[0018] In the figure: 1 - gasket body, 2 - annular protrusion, 3 - annular groove, 4 - wavy annular band, 5 - buffer ring, 6 - connecting piece A, 7 - docking groove A, 8 - sealing ring, 9 - connecting piece B, 10 - docking groove B. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0020] Embodiment:

[0021] As Figures 1 to 4As shown in the figure, this embodiment provides a toothed combined gasket, including a gasket body 1. The gasket body 1 is circular ring-shaped, and a number of concentric annular protrusions 2 are evenly arranged on the gasket body 1. An annular groove 3 is provided between adjacent annular protrusions 2. The annular protrusions 2 and the annular grooves 3 form a wavy ring belt 4 on the gasket body 1. A buffer ring 5 is clamped on the inner hole of the gasket body 1. Connecting pieces A6 are evenly arranged along the circumference on the outer edge of the buffer ring 5. The gasket body 1 is provided with a docking groove A7 corresponding to the connecting piece A6 along the inner hole. The connecting piece A6 is connected to the docking groove A7. The gasket body 1 is respectively provided with a sealing ring 8 covering the wavy ring belt 4 on the upper and lower sides. The shape of the contact surface of the sealing ring 8 with the gasket body 1 fits the shape of the wavy ring belt 4. Connecting pieces B9 are evenly arranged along the circumference on the outer edge and the inner edge of the sealing ring 8 respectively. The gasket body 1 is provided with a docking groove B10 corresponding to the connecting piece B9. The connecting piece B9 is connected to the docking groove B10.

[0022] When this toothed combined gasket is installed between a fastener and a mounting part, through the elasticity of the buffer ring 5 and the sealing ring 8 itself, the upper and lower sides of the gasket body 1 can better fit the fastener and the mounting part, and the inner hole of the gasket body 1 can better fit the lower end of the fastener inserted therein, improving the sealing effect. The buffer ring 5 and the sealing ring 8 are convenient to install and disassemble on the gasket body 1, improving production efficiency and facilitating after-sales maintenance; the connecting pieces A6 and the connecting pieces B9 respectively provide a firm connection between the buffer ring 5 and the sealing ring 8 and the gasket body 1, preventing the buffer ring 5 and the sealing ring 8 from falling off the gasket body 1 due to accidents such as collision and impact. The buffer ring 5 props on the inner hole of the gasket body 1 through its own elasticity and the cooperation between the shape of its outer edge and the shape of the inner hole of the gasket. The sealing ring 8 utilizes its own elasticity and the shape of its contact surface with the gasket body 1 fitting the shape of the wavy ring belt 4, so that the two sealing rings 8 are respectively clamped at the wavy ring belt 4 on the upper and lower sides of the gasket body 1. The part connected to the gasket body 1 by elasticity has a certain connection strength and is convenient to install and disassemble, reducing the installation and disassembly difficulty of the buffer ring 5 and the sealing ring 8. When installing the buffer ring 5 and the sealing ring 8 on the gasket body 1, only the installation of the connecting pieces A6 and the connecting pieces B9 requires a certain amount of work, improving the assembly efficiency. When the buffer ring 5 and the sealing ring 8 are damaged and need to be replaced, only the connection between the connecting piece A6 and the docking groove A7 and the connection between the connecting piece B9 and the docking groove B10 need to be released, and then the old buffer ring 5 and the sealing ring 8 can be conveniently removed.

[0023] Furthermore, the shapes of the connecting pieces A6 and the connecting pieces B9 are isosceles trapezoids, reducing the risk of the connecting pieces A6 and the connecting pieces B9 accidentally coming out of the corresponding docking grooves A7 and docking grooves B10.

[0024] Further, the number of connecting pieces A6 on the buffer ring 5 is 4, the number of connecting pieces B9 on the inner edge of the sealing ring 8 is 4, and the number of connecting pieces B9 on the outer edge is 4. Ensure that there are sufficient numbers of connecting pieces A6 and connecting pieces B9 to guarantee the connection strength between the buffer ring 5 and the gasket body 1 and between the sealing ring 8 and the gasket body 1.

[0025] Further, the connecting pieces A6 and the docking grooves A7, and the connecting pieces B9 and the docking grooves B10 are adhesively connected by glue. The use of glue in conjunction with the docking grooves A7 and B10 is convenient for operation and improves the assembly efficiency.

[0026] The working principle and usage process of the present utility model are as follows:

[0027] When using the toothed combined gasket, place the toothed combined gasket between the fastener and the mounting part. Insert the lower end of the fastener into the inner hole of the gasket body and extend it into the mounting hole of the mounting part. During the process of the fastener gradually approaching the mounting part, the annular protrusions 2 and the annular grooves 3 gradually expand and flatten. The sealing rings 8 on both the upper and lower sides of the gasket body 1 closely adhere to the fastener and the mounting part, and the buffer ring 5 on the inner hole of the gasket body 1 closely adheres to the lower end of the fastener, improving the sealing performance.

[0028] When assembling the gasket body 1, the buffer ring 5 and the sealing ring 8, drip glue into the docking grooves A7 and B10, then install the buffer ring 5 and the sealing ring 8, and place the connecting pieces A6 and B9 into the corresponding docking grooves A7 and B10 respectively. Wait for the glue to dry to complete the assembly work.

[0029] When disassembling the buffer ring 5 and the sealing ring 8 from the gasket body 1, use a spatula to shovel out the connecting pieces A6 and B9 from the corresponding docking grooves A7 and B10 respectively, and then pull out the buffer ring 5 and the sealing ring 8.

[0030] The above are only specific application examples of the present utility model and do not constitute any limitation to the protection scope of the present utility model. Any technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of the rights protection of the present utility model.

Claims

1. A toothed combined gasket, comprising a gasket body. The gasket body is annular. A number of concentric annular protrusions are evenly arranged on the gasket body. An annular groove is provided between adjacent annular protrusions. The annular protrusions and the annular grooves form a wavy annular belt on the gasket body. It is characterized in that: A buffer ring is clamped on the inner hole of the gasket body. The outer edge of the buffer ring is evenly provided with connecting pieces A along the circumference. The gasket body is provided with a docking groove A corresponding to the connecting piece A along the inner hole. The connecting piece A is connected to the docking groove A. The gasket body is respectively provided with sealing rings covering the wavy annular belt on the upper and lower sides. The shape of the abutting surface of the sealing ring and the gasket body fits the shape of the wavy annular belt. The outer edge and the inner edge of the sealing ring are respectively evenly provided with connecting pieces B along the circumference. The gasket body is provided with a docking groove B corresponding to the connecting piece B. The connecting piece B is connected to the docking groove B.

2. The toothed combined gasket according to claim 1, characterized in that: The connecting pieces A and B are in the shape of isosceles trapezoids.

3. A toothed combined gasket according to claim 1, characterized in that: The number of the connecting pieces A on the buffer ring is 4, the number of the connecting pieces B on the inner edge of the sealing ring is 4, and the number of the connecting pieces B on the outer edge is 4.

4. A toothed combined gasket according to claim 1, characterized in that: The connecting piece A and the docking groove A, and the connecting piece B and the docking groove B are adhesively connected by glue.

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