An insulating gasket with good sealing

Abstract

The utility model discloses an insulating gasket that good sealing, including insulating gasket main part, the insulating gasket main part is circular ring structure, and the centre of insulating gasket main part is equipped with mounting hole, the both sides of insulating gasket main part are provided with annular seal, and the annular seal is composed of primary seal ring and secondary seal ring, and primary seal ring and secondary seal ring integrated molding, and the diameter of primary seal ring is greater than the diameter of secondary seal ring, and primary seal ring is located the surface of insulating gasket main part, and secondary seal ring is located the surface of primary seal ring, and primary seal ring and secondary seal ring are symmetrically set up in the both sides of insulating gasket main part, and the insulating gasket main part is composed of outer ring and inner ring, and the outer ring and inner ring adopt detachable type setting, the utility model discloses being provided with annular seal in the both sides of insulating gasket main part, and the annular seal is composed of primary seal ring and secondary seal ring, can improve the sealing performance of insulating gasket.

Description

TECHNICAL FIELD

[0001] The utility model relates to insulating gasket technical field, concretely is a kind of insulating gasket with good sealing property. BACKGROUND

[0002] In the process equipment of various industrial sectors, sealing gasket occupies an important position, especially in the petroleum, chemical industry, often also need to have insulating performance sealing gasket. Piping, valve, pump and pressure vessel, heat exchanger, condenser and other industrial equipment or spare parts, often use sealing element, gasket is the most common part in sealing element, the most widely used, using gasket not only can maintain the sealing property of the above-mentioned equipment, can also solve the wear and tear problem of connecting piece gasket has many kinds, according to the main body material of its structure is divided into non-metal, semi-metal and metal gasket three categories, wherein non-metal gasket soft texture, corrosion resistance, price is also relatively cheap, therefore application range is more extensive, commonly used in normal temperature and medium temperature container or piping flange sealing. But the insulating gasket currently used cannot effectively ensure the flatness of the contact surface when contacting with the flange of the pipeline, and if the contact surface is not close enough, leakage can be caused, and the insulating gasket needs to adapt to different diameter pipelines, so the corresponding size is needed, which is not convenient to use. SUMMARY

[0003] The utility model aims at providing to solve the problems proposed in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of insulating gasket with good sealing property, including insulating gasket main body, the insulating gasket main body is circular ring structure, the center of insulating gasket main body is equipped with mounting hole, the two sides of the insulating gasket main body are provided with annular seal, the annular seal is composed of primary seal ring and secondary seal ring, the primary seal ring and secondary seal ring are integrally formed, the diameter of the primary seal ring is greater than the diameter of secondary seal ring, the primary seal ring is located on the surface of insulating gasket main body, the secondary seal ring is located on the surface of primary seal ring, the primary seal ring and secondary seal ring are symmetrically arranged on the two sides of insulating gasket main body, the insulating gasket main body is composed of outer ring and inner ring, the outer ring and inner ring are detachably arranged.

[0005] In the above-mentioned insulating gasket with good sealing property, the surface of the secondary seal ring is formed with a protrusion.

[0006] In the above-mentioned insulating gasket with good sealing property, the outer ring and the inner ring of the insulating gasket main body are connected by a stepped hole.

[0007] In the above-mentioned insulating gasket with good sealing property, the outer diameter of the inner ring of the insulating gasket main body is equal to the inner diameter of the outer ring.

[0008] In the above-mentioned insulation gasket with good sealing performance, the thickness of the outer ring and the inner ring of the insulation gasket body is the same.

[0009] In the above-mentioned insulation gasket with good sealing performance, the insulation gasket body is made of natural rubber.

[0010] In the above-mentioned insulation gasket with good sealing performance, the primary sealing ring and the secondary sealing ring are made of nitrile rubber.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1、 the utility model discloses a ring -like sealing piece is provided with on both sides of insulation gasket body, and the ring -like sealing piece is composed of primary sealing ring and secondary sealing ring, when the flange of container or pipeline is sealed, first, the primary sealing ring is contacted with the flange, and when continuing to lock, the secondary sealing ring is further contacted with the flange, so that the sealing performance of insulation gasket can be improved.

[0013] 2、 the utility model discloses the inside of insulation gasket body is provided with outer ring and inner ring, and the outer ring and the inner ring are detachably arranged, when needing to be used for the connecting piece of larger diameter, the inner ring can be disassembled, so that the mounting hole size of insulation gasket body can be enlarged, thereby adapting to different demands. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the side structure schematic drawing of the utility model;

[0015] Fig. 2 It is the front structure schematic drawing of the utility model;

[0016] Fig. 3 It is the side structure schematic drawing of the utility model after removing the inner ring.

[0017] In the drawing: 1, insulation gasket body;2, mounting hole;3, primary sealing ring;4, secondary sealing ring;5, outer ring;6, inner ring. DETAILED DESCRIPTION

[0018] 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. Apparently, 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.

[0019] Please refer to Figs. 1-3The utility model provides a kind of insulating gasket technical scheme with good sealing property: including insulating gasket main body 1, the insulating gasket main body 1 is circular ring structure, the center of insulating gasket main body 1 is equipped with mounting hole 2, the two sides of insulating gasket main body 1 are provided with annular seal, the annular seal is composed of primary seal ring 3 and secondary seal ring 4, primary seal ring 3 and secondary seal ring 4 are integrally formed, the diameter of primary seal ring 3 is greater than the diameter of secondary seal ring 4, primary seal ring 3 is located on the surface of insulating gasket main body 1, secondary seal ring 4 is located on the surface of primary seal ring 3, primary seal ring 3 and secondary seal ring 4 are symmetrically arranged on the two sides of insulating gasket main body 1, the insulating gasket main body 1 is composed of outer ring 5 and inner ring 6, outer ring 5 and inner ring 6 are detachably arranged.

[0020] Specifically, the surface of the secondary seal ring 4 is formed with a protrusion, which can improve the sealing effect of the secondary seal ring 4 and the flange.

[0021] In this embodiment, the outer ring 5 and the inner ring 6 of the insulating gasket main body 1 are connected by a stepped hole, the outer diameter of the inner ring 6 of the insulating gasket main body 1 is equal to the inner diameter of the outer ring 5, and the thickness of the outer ring 5 and the inner ring 6 of the insulating gasket main body 1 is the same. When a larger diameter connector is needed, the inner ring 6 can be detached, which can expand the size of the mounting hole of the insulating gasket main body 1.

[0022] In this embodiment, the insulating gasket main body 1 is made of natural rubber, which has high elasticity, high modulus of elasticity, excellent tear resistance and electrical insulation, good wear resistance and good drought resistance.

[0023] The primary seal ring 3 and the secondary seal ring 4 are made of nitrile rubber, which has excellent corrosion resistance and tear resistance.

[0024] Working principle: the utility model is provided with annular seal on the two sides of the insulating gasket main body 1, the annular seal is composed of primary seal ring 3 and secondary seal ring 4, when sealing the flange of the container or pipeline, the secondary seal ring 4 first contacts the flange, and the primary seal ring 3 further contacts the flange when locking, which can improve the sealing performance of the insulating gasket. The outer ring 5 and the inner ring 6 are arranged inside the insulating gasket main body 1, and the outer ring 5 and the inner ring 6 are detachably arranged. When a larger diameter connector is needed, the inner ring 6 can be detached, which can expand the size of the mounting hole of the insulating gasket main body, thereby meeting different needs, and has the advantages of simple structure, convenient use and good use effect.

[0025] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An insulating gasket with improved sealing properties, comprising an insulating gasket body (1), characterized in that: The insulating gasket body (1) is a circular ring structure, the center of the insulating gasket body (1) is provided with a mounting hole (2), the two sides of the insulating gasket body (1) are provided with annular sealing elements, the annular sealing elements are composed of a primary sealing ring (3) and a secondary sealing ring (4), the primary sealing ring (3) and the secondary sealing ring (4) are integrally formed, the diameter of the primary sealing ring (3) is greater than that of the secondary sealing ring (4), the primary sealing ring (3) is located on the surface of the insulating gasket body (1), the secondary sealing ring (4) is located on the surface of the primary sealing ring (3), the primary sealing ring (3) and the secondary sealing ring (4) are symmetrically arranged on the two sides of the insulating gasket body (1), the insulating gasket body (1) is composed of an outer ring (5) and an inner ring (6), the outer ring (5) and the inner ring (6) are detachably arranged.

2. The insulating gasket of claim 1, wherein The surface of the secondary sealing ring (4) is formed with a protrusion.

3. The insulating gasket of claim 2, wherein The outer ring (5) and the inner ring (6) of the insulating gasket body (1) are connected through a stepped hole.

4. The insulating gasket of claim 3, wherein The outer diameter of the inner ring (6) of the insulating gasket body (1) is equal to the inner diameter of the outer ring (5).

5. The insulating gasket of claim 4, wherein The thickness of the outer ring (5) and the inner ring (6) of the insulating gasket body (1) is the same.

6. The insulating gasket of claim 5, wherein The insulating gasket body (1) is made of natural rubber.

7. The insulating gasket of claim 6, wherein The primary sealing ring (3) and the secondary sealing ring (4) are made of butyronitrile rubber.

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