Composite tear-resistant sealing gasket

Abstract

The utility model discloses a composite tear-resistant sealing gasket, which belongs to the technical field of sealing gaskets and comprises a sealing gasket body, the sealing gasket body comprises a base layer, a reinforcing layer and a protective layer, the base layer is connected to the inner wall of the sealing gasket body, and the reinforcing layer is connected to the middle of the sealing gasket body. According to the sealing gasket, the reinforcing layer and the anti-tearing ribs in the base body layer act together, the tensile strength and the anti-tearing performance of the sealing gasket are greatly improved, the effect of external force can be effectively resisted, the sealing gasket is prevented from being torn, the polyurethane coating of the protective layer has good abrasion resistance and corrosion resistance, and the service life of the sealing gasket is prolonged. The sealing gasket can be protected from being corroded and abraded by the external environment, the service life of the sealing gasket is prolonged, the contact area between the sealing gasket and the sealing face is increased through the buffering protrusions, and the sealing effect is improved; and the positioning groove ensures that the sealing gasket is accurately aligned with the sealing surface, so that the sealing failure caused by improper installation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealing gasket, especially to a composite anti-tearing sealing gasket. BACKGROUND

[0002] In the operation process of various mechanical equipment, the sealing gasket plays a vital role, which can prevent fluid leakage, isolate impurities and ensure the normal operation of the equipment. However, the existing sealing gasket often faces the problem of insufficient anti-tearing performance in actual use. When the equipment bears a large pressure, there is relative motion or is impacted by external force, the sealing gasket is prone to tearing, leading to sealing failure and causing fluid leakage, which not only affects the performance and service life of the equipment, but also may cause safety hazards and economic losses.

[0003] Although some sealing gaskets on the market have been improved in materials or structure, they still have the shortcomings of limited anti-tearing performance and narrow application range. Some sealing gaskets only use a single material, which is difficult to meet the requirements of high strength and good flexibility at the same time; the structure design of some sealing gaskets is simple, and they lack effective anti-tearing structures, which cannot effectively resist external forces. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides a composite anti-tearing sealing gasket.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a composite anti-tearing sealing gasket, comprising a sealing gasket body, the sealing gasket body comprises a base layer, a reinforcing layer and a protective layer, the base layer is connected and arranged on the inner wall of the sealing gasket body, the reinforcing layer is connected and arranged in the middle of the sealing gasket body, the protective layer is connected and arranged on the outer wall of the sealing gasket body, a plurality of groups of anti-tearing ribs are connected and arranged in the base layer, a positioning groove is formed in the outer wall of the reinforcing layer, and a plurality of groups of buffer protrusions are connected and arranged on the outer wall of the protective layer.

[0006] As a further description of the above technical scheme:

[0007] The material of the base layer is silicone rubber material, which has good flexibility, high and low temperature resistance and chemical stability, can adapt to different working environments, and provides basic sealing performance and elasticity for the sealing gasket body.

[0008] As a further description of the above technical scheme:

[0009] The material of the reinforcing layer includes aramid fiber fabric and epoxy resin, aramid fiber has the characteristics of high strength and high modulus, and epoxy resin can bond aramid fiber together to form a solid network structure, which enhances the tensile strength and anti-tearing performance of the sealing gasket body.

[0010] As a further description of the above technical solutions:

[0011] The material of the protective layer is polyurethane coating, which has good wear resistance, corrosion resistance and impact resistance, can protect the reinforcing layer from erosion and wear of the external environment, and prolong the service life of the sealing gasket body.

[0012] As a further description of the above technical solutions:

[0013] The shape of the buffer protrusion is hemispherical, and the buffer protrusion can play a buffering role when the sealing gasket body is impacted by external force, reduce the damage of impact force to the sealing gasket body, increase the contact area between the sealing gasket body and the sealing surface, and improve the sealing effect.

[0014] As a further description of the above technical solutions:

[0015] The shape of the positioning groove is annular, and the positioning groove can play a positioning role during installation, ensure the accurate alignment of the sealing gasket body and the sealing surface, and avoid damage and sealing failure of the sealing gasket body due to improper installation.

[0016] As a further description of the above technical solutions:

[0017] The material of the anti-tear rib is rubber material, and the anti-tear rib can enhance the structural strength of the base layer, and when the sealing gasket body is subjected to external force, the rib can disperse stress and prevent the expansion of tearing cracks.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, the reinforcing layer and the anti-tear rib inside the base layer jointly act, greatly improve the tensile strength and anti-tear performance of the sealing gasket, can effectively resist the action of external force, and prevent tearing of the sealing gasket.

[0020] In the utility model, the polyurethane coating of the protective layer has good wear resistance and corrosion resistance, can protect the sealing gasket from erosion and wear of the external environment, and prolong the service life of the sealing gasket.

[0021] In the utility model, the buffer protrusion increases the contact area between the sealing gasket and the sealing surface, and improves the sealing effect; the positioning groove ensures the accurate alignment of the sealing gasket and the sealing surface, and avoids sealing failure due to improper installation. DETAILED DESCRIPTION

[0022] Fig. 1 A first perspective view of a composite anti-tear sealing gasket is proposed for the utility model;

[0023] Fig. 2A second perspective view of a composite tear-resistant sealing gasket is provided in the utility model.

[0024] Fig. 3 A third perspective view of the internal schematic diagram of the base layer of the composite tear-resistant sealing gasket is provided in the utility model.

[0025] Legend:

[0026] 1, base layer; 2, reinforcing layer; 3, protective layer; 4, buffer protrusion; 5, positioning groove; 6, tear-resistant rib; 7, sealing gasket body. Specific implementation

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Reference Figs. 1-3 An embodiment provided by the utility model: a composite tear-resistant sealing gasket, comprising a sealing gasket body 7, the sealing gasket body 7 comprises a base layer 1, a reinforcing layer 2 and a protective layer 3, the base layer 1 is connected and arranged on the inner wall of the sealing gasket body 7, the reinforcing layer 2 is connected and arranged on the middle part of the sealing gasket body 7, the protective layer 3 is connected and arranged on the outer wall of the sealing gasket body 7, the inside of the base layer 1 is connected and arranged with several groups of tear-resistant ribs 6, the outer wall of the reinforcing layer 2 is provided with positioning grooves 5, and the outer wall of the protective layer 3 is connected and arranged with several groups of buffer protrusions 4.

[0029] The material of the base layer 1 is silicone rubber material, which has good flexibility, high and low temperature resistance and chemical stability, can adapt to different working environments, provides basic sealing performance and elasticity for the sealing gasket body 7, and enhances the tensile strength and tear resistance of the sealing gasket body 7. The material of the reinforcing layer 2 includes aramid fiber fabric and epoxy resin. Aramid fiber has the characteristics of high strength and high modulus, and epoxy resin can bond aramid fiber together to form a solid network structure. The material of the protective layer 3 is polyurethane coating, which has good wear resistance, corrosion resistance and impact resistance, can protect the reinforcing layer from external environmental erosion and wear, prolong the service life of the sealing gasket body 7, and reduce the damage of the impact force to the sealing gasket body 7. The shape of the buffer protrusion 4 is hemispherical, which can play a buffering role when the sealing gasket body 7 is impacted by external force, reduce the damage of the impact force to the sealing gasket body 7, increase the contact area between the sealing gasket body 7 and the sealing surface, and improve the sealing effect. The shape of the positioning groove 5 is annular, which can play a positioning role during installation, ensure the accurate alignment of the sealing gasket body 7 and the sealing surface, avoid damage to the sealing gasket body 7 and sealing failure caused by improper installation, and the tear-resistant rib 6 is made of rubber material, which can enhance the structural strength of the base layer 1. When the sealing gasket body 7 is subjected to external force, the rib can disperse stress and prevent the expansion of tear cracks.

[0030] Working principle: when the composite anti-tear sealing gasket is in working condition, the base layer 1 first contacts the sealing surface. The base layer 1 is made of silicone rubber material, which has good elasticity and flexibility, can tightly fit the sealing surface, and form a preliminary sealing effect. At the same time, a plurality of anti-tear rib groups 6 are connected inside the base layer 1, the material of the anti-tear rib groups 6 is rubber material, they interweave to form a network structure, which greatly enhances the anti-tear ability of the base layer 1. When the sealing gasket is subjected to external tension or pressure, the anti-tear rib groups 6 can disperse stress and prevent the base layer 1 from tearing, thereby ensuring the integrity and sealing performance of the sealing gasket. The reinforcing layer 2 is located in the middle of the sealing gasket body 7, and the material thereof includes aramid fiber fabric and epoxy resin. The aramid fiber fabric has the characteristics of high strength and high modulus, and can withstand a large external force, while the epoxy resin plays a role in bonding and fixing the aramid fiber fabric, so that the reinforcing layer 2 forms a solid whole. The annular positioning groove 5 is opened on the outer wall of the reinforcing layer 2, which can cooperate with the positioning protrusion on the sealing part during installation, play a role in accurate positioning, and ensure the accuracy and stability of the installation of the sealing gasket. At the same time, the existence of the reinforcing layer 2 further enhances the overall strength of the sealing gasket, so that it can better resist external impact and vibration. The protective layer 3 is connected to the outer wall of the sealing gasket body 7, and the material thereof is polyurethane coating. The polyurethane coating has good wear resistance and corrosion resistance, which can effectively protect the sealing gasket from being eroded by the external environment. A plurality of semispherical buffer protrusions 4 are connected to the outer wall of the protective layer 3, which can first bear the impact force when the sealing gasket is subjected to the impact or extrusion of external objects, and absorb and disperse energy through its own deformation, thereby reducing the direct damage to the sealing gasket body. In addition, the buffer protrusions 4 can also increase the contact area between the sealing gasket and the surrounding environment, and improve the heat dissipation performance of the sealing gasket to a certain extent. During the working process, the base layer 1, the reinforcing layer 2 and the protective layer 3 work together, and each layer of material plays its own advantages. The base layer 1 ensures the sealing performance, the reinforcing layer 2 provides strength and positioning support, and the protective layer 3 protects the sealing gasket from external damage. The design of the anti-tear rib groups 6, the positioning groove 5 and the buffer protrusions 4 further improves the anti-tear ability, installation accuracy and impact resistance of the sealing gasket, so that the composite anti-tear sealing gasket can work stably and reliably under various harsh conditions, and effectively prevent medium leakage.

[0031] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A composite tear resistant gasket comprising a gasket body (7) characterised in that: The sealing gasket body (7) comprises a base layer (1), a reinforcing layer (2) and a protective layer (3), the base layer (1) is connected and arranged on the inner wall of the sealing gasket body (7), the reinforcing layer (2) is connected and arranged on the middle part of the sealing gasket body (7), and the protective layer (3) is connected and arranged on the outer wall of the sealing gasket body (7); a plurality of groups of anti-tear ribs (6) are connected and arranged on the inner part of the base layer (1), a positioning groove (5) is arranged on the outer wall of the reinforcing layer (2), and a plurality of groups of buffer protrusions (4) are connected and arranged on the outer wall of the protective layer (3).

2. The composite tear-resistant gasket of claim 1, wherein: The material of the base layer (1) is silicone rubber material.

3. The composite tear-resistant gasket of claim 1, wherein: The material of the reinforcing layer (2) comprises aramid fiber fabric and epoxy resin.

4. The composite tear-resistant gasket of claim 1 wherein: The material of the protective layer (3) is polyurethane coating.

5. The composite tear-resistant gasket of claim 1 wherein: The shape of the buffer protrusion (4) is semispherical.

6. The composite tear-resistant gasket of claim 1 wherein: The shape of the positioning groove (5) is annular.

7. The composite tear-resistant gasket of claim 1 wherein: The material of the anti-tear rib (6) is rubber material.

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