Non-asbestos composite sealing gasket

Abstract

The utility model provides a non-asbestos composite sealing gasket. The non-asbestos composite sealing gasket comprises a sealing gasket body; the wear-resistant layer is contained in the sealing gasket, a supporting layer is arranged in the middle of the interior of the wear-resistant layer, elastic layers are arranged at the top and the bottom of the supporting layer, a heat insulation layer is arranged at the bottom of each elastic layer, and a rubber layer is arranged at the bottom of each heat insulation layer; the penetrating opening is formed in the top of the sealing gasket, and a plurality of air holes are formed in the middle of the inner surface of the penetrating opening. According to the asbestos-free composite sealing gasket, asbestos is replaced as a main material through the design, harm to an artificial respiratory tract is reduced, and the sealing gasket formed by compounding the elastic layer, the supporting layer, the elastic layer, the heat insulation layer, the rubber layer and the wear-resistant layer according to different characteristics reduces cost and improves wear resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of composite sealing gaskets, in particular to an asbestos-free composite sealing gasket. Background Art

[0002] Sealing gasket is a kind of sealing spare part used in machinery, equipment, pipelines as long as there is fluid. It is used inside and outside to perform sealing.

[0003] Domestic sealing gaskets are generally divided into metal gaskets or asbestos gaskets. Asbestos gaskets are made of asbestos as the main material, and asbestos has the characteristics of high temperature resistance, corrosion resistance, and low price.

[0004] However, sealing gaskets made of asbestos as the main material are very harmful to the human respiratory tract during use, while metal gaskets wear quickly and are more expensive. If they are severely worn and not replaced in time, the sealing will be affected.

[0005] Therefore, it is necessary to provide an asbestos-free composite sealing gasket to solve the above technical problems. Utility Model Content

[0006] The utility model provides an asbestos-free composite sealing gasket, which solves the problems of harm to human respiratory tract caused by using asbestos as the main material of the sealing gasket and high cost and fast wear of metal gaskets.

[0007] In order to solve the above technical problems, the utility model provides an asbestos-free composite sealing gasket comprising: a sealing gasket;

[0008] A wear-resistant layer, the wear-resistant layer is contained in the sealing gasket, a support layer is arranged in the middle of the wear-resistant layer, elastic layers are arranged on the top and bottom of the support layer, a heat insulation layer is arranged on the bottom of the elastic layer, and a rubber layer is arranged on the bottom of the heat insulation layer;

[0009] A through hole, the through hole is opened on the top of the sealing gasket, and a plurality of air holes are opened at the middle of the inner surface of the through hole;

[0010] The top of the other elastic layer is also provided with an insulation layer and a rubber layer in sequence. The wear-resistant layer wraps the elastic layer, insulation layer and rubber layer at the top and bottom of the support layer. There are also air holes on the support layer to assist in heat dissipation. For details, please refer to Figure 2 .

[0011] Preferably, the top and bottom of the sealing gasket are provided with mounting grooves, and the interiors of the mounting grooves are provided with sealing rings;

[0012] The sealing ring assists the sealing gasket to improve the sealing effect.

[0013] Preferably, the outer surface of the sealing gasket is provided with a plurality of connection pads, and the top of the connection pads is provided with a through mounting hole;

[0014] The connecting pad is convenient for fixing the sealing gasket in the corresponding position, and the mounting hole is convenient for the fixing bolts to pass through.

[0015] Preferably, the support layer is made of copper, and the elastic layer is made of polyurethane;

[0016] The support layer needs to provide a certain support effect to place the sealing gasket to deform.

[0017] Preferably, the heat insulation layer is made of acrylic acid, and the rubber layer is made of silicone rubber;

[0018] The heat insulation layer can play a certain heat insulation effect and reduce the damage of high temperature to the sealing gasket. The rubber layer has a certain plasticity and flexibility.

[0019] Preferably, the wear-resistant layer is made of graphite.

[0020] Compared with the related art, the asbestos-free composite sealing gasket provided by the utility model has the following beneficial effects:

[0021] The utility model provides an asbestos-free composite sealing gasket. In order to reduce the harm of the load sealing gasket to the human body and improve its wear resistance, the sealing gasket is first divided into multiple layers, with a supporting layer in the middle position, and then only the elastic layer needs to be installed below the supporting layer, and a heat insulation layer is installed below the elastic layer, and then the rubber layer is installed below the heat insulation layer, and then the elastic layer, the supporting layer, the elastic layer, the heat insulation layer and the rubber layer are installed above the supporting layer in the same order, and finally the wear-resistant layer is used to wrap it. In actual use, the supporting layer plays a supporting role, and the deformation of the sealing gasket is reduced through the reset characteristic of the elastic layer, and the heat insulation layer can play a certain heat insulation effect, reduce the damage of the sealing gasket to the high temperature, and the wear-resistant layer is located on the outer surface to increase the wear resistance of the sealing gasket and increase the service life. Through the design, asbestos is replaced as the main material, the harm to the artificial respiratory tract is reduced, and the sealing gasket formed by compounding the different characteristics of the elastic layer, the supporting layer, the elastic layer, the heat insulation layer, the rubber layer and the wear-resistant layer reduces the cost and improves the wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural schematic diagram of a preferred embodiment of the asbestos-free composite sealing gasket provided by the utility model;

[0023] Figure 2 A structural schematic diagram of a support layer is provided for the utility model;

[0024] Figure 3 Provided for the utility model Figure 1 An enlarged view of point A is shown;

[0025] Figure 4 Provided for the utility model Figure 2 An enlarged view of point B is shown.

[0026] Numbers in the figure: 1. Sealing gasket, 101. Wear-resistant layer, 102. Support layer, 103. Elastic layer, 104. Heat insulation layer, 105. Rubber layer, 2. Connecting pad, 3. Through-hole, 4. Mounting hole, 5. Mounting groove, 6. Sealing ring, 7. Air vent. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of the asbestos-free composite sealing gasket provided by the utility model; Figure 2 A structural schematic diagram of a support layer is provided for the utility model; Figure 3 Provided for the utility model Figure 1 An enlarged view of point A is shown; Figure 4 Provided for the utility model Figure 2 The enlarged view of point B is shown. The asbestos-free composite sealing gasket comprises: a sealing gasket 1;

[0029] A wear-resistant layer 101, wherein the wear-resistant layer 101 is contained in the sealing gasket 1, wherein a support layer 102 is disposed in the middle of the wear-resistant layer 101, wherein elastic layers 103 are disposed on the top and bottom of the support layer 102, wherein a heat-insulating layer 104 is disposed on the bottom of the elastic layer 103, and a rubber layer 105 is disposed on the bottom of the heat-insulating layer 104;

[0030] A through hole 3, wherein the through hole 3 is opened at the top of the sealing gasket 1, and a plurality of air holes 7 are opened at the middle of the inner surface of the through hole 3;

[0031] The top of another elastic layer 103 is also provided with an insulating layer 104 and a rubber layer 105 in sequence. The wear-resistant layer 101 wraps the elastic layer 103, the insulating layer 104 and the rubber layer 105 at the top and bottom of the support layer 102. The air holes 7 are also provided on the support layer 102 to assist in heat dissipation. For details, please refer to Figure 2 The hole 3 passes through the sealing gasket 1.

[0032] The top and bottom of the sealing gasket 1 are both provided with mounting grooves 5, and the interiors of the mounting grooves 5 are both provided with sealing rings 6;

[0033] The sealing ring 6 assists the sealing gasket 1 to improve the sealing effect. The sealing ring 6 and the wear-resistant layer 101 are made of the same material.

[0034] The outer surface of the sealing gasket 1 is provided with a plurality of connection pads 2, and the top of each connection pad 2 is provided with a penetrating mounting hole 4;

[0035] The connection pad 2 is convenient for fixing the sealing gasket 1 at the corresponding position, and the mounting hole 4 is convenient for the fixing bolt to pass through.

[0036] The support layer 102 is made of copper, and the elastic layer 103 is made of polyurethane;

[0037] The support layer 102 needs to provide a certain support effect to place the sealing gasket 1 to deform, and the elastic layer 103 has a certain rebound effect, and can quickly recover after the sealing gasket 1 is released from pressure.

[0038] The heat insulation layer 104 is made of acrylic acid, and the rubber layer 105 is made of silicone rubber.

[0039] The heat insulating layer 104 can play a certain heat insulating effect and reduce the damage of high temperature to the sealing gasket 1. The rubber layer 105 has a certain plasticity and flexibility.

[0040] The wear-resistant layer 101 is made of graphite as raw material;

[0041] The wear-resistant layer 101 is composed of graphite as a main material and filler materials such as resin and metal.

[0042] The working principle of the asbestos-free composite sealing gasket provided by the utility model is as follows:

[0043] First, the sealing gasket 1 is divided into multiple layers, with a supporting layer 102 in the middle. Then, it is only necessary to install the elastic layer 103 below the supporting layer 102, and install a heat-insulating layer 104 below the elastic layer 103, and then install the rubber layer 105 below the heat-insulating layer 104. Then, the elastic layer 103, the supporting layer 102, the elastic layer 103, the heat-insulating layer 104 and the rubber layer 105 are installed above the supporting layer 102 in the same order, and finally, the wear-resistant layer 101 is used to wrap it. In actual use, the supporting layer 102 plays a supporting role, and the deformation of the sealing gasket 1 is reduced through the reset characteristics of the elastic layer 103, and the heat-insulating layer 104 can play a certain heat-insulating effect, reducing the damage of the sealing gasket 1 to the high temperature, and the wear-resistant layer 101 is located on the outer surface to increase the wear resistance of the sealing gasket 1 and increase the service life.

[0044] Compared with the related art, the asbestos-free composite sealing gasket provided by the utility model has the following beneficial effects:

[0045] In order to reduce the harm of the load sealing gasket to the human body and improve its wear resistance, the sealing gasket 1 is first divided into multiple layers, with a supporting layer 102 in the middle, and then only the elastic layer 103 needs to be installed below the supporting layer 102, and a heat insulating layer 104 is installed below the elastic layer 103, and then the rubber layer 105 is installed below the heat insulating layer 104, and then the elastic layer 103, the supporting layer 102, the elastic layer 103, the heat insulating layer 104 and the rubber layer 105 are installed above the supporting layer 102 in the same order, and finally the wear-resistant layer 101 is used to wrap it. In actual use, the supporting layer 102 plays a supporting role, and the deformation of the sealing gasket 1 is reduced through the reset characteristics of the elastic layer 103, and the heat-insulating layer 104 can play a certain heat-insulating effect, reducing the damage to the sealing gasket 1 caused by high temperature, and the wear-resistant layer 101 is located on the outer surface to increase the wear resistance of the sealing gasket 1 and increase the service life. This design replaces asbestos as the main material, reduces the harm to the artificial respirator, and the sealing gasket 1 composed of the elastic layer 103, the supporting layer 102, the elastic layer 103, the heat-insulating layer 104, the rubber layer 105 and the wear-resistant layer 101 with different characteristics reduces the cost and improves the wear resistance.

[0046] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An asbestos-free composite sealing gasket, characterized in that: include: Sealing gasket; A wear-resistant layer, the wear-resistant layer is contained in the sealing gasket, a support layer is arranged in the middle of the wear-resistant layer, elastic layers are arranged on the top and bottom of the support layer, a heat insulation layer is arranged on the bottom of the elastic layer, and a rubber layer is arranged on the bottom of the heat insulation layer; The through-opening is opened on the top of the sealing gasket, and a plurality of air holes are opened in the middle of the inner surface of the through-opening.

2. The asbestos-free composite sealing gasket according to claim 1, characterized in that: The top and the bottom of the sealing gasket are both provided with mounting grooves, and the interiors of the mounting grooves are both provided with sealing rings.

3. The asbestos-free composite sealing gasket according to claim 1, characterized in that: The outer surface of the sealing gasket is provided with a plurality of connection pads, and the top of the connection pads is provided with a penetrating installation hole.

4. The asbestos-free composite sealing gasket according to claim 1, characterized in that: The supporting layer is made of copper, and the elastic layer is made of polyurethane.

5. The asbestos-free composite sealing gasket according to claim 1, characterized in that: The heat insulation layer is made of acrylic acid, and the rubber layer is made of silicone rubber.

6. The asbestos-free composite sealing gasket according to claim 1, characterized in that: The wear-resistant layer is made of graphite as raw material.

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