Waterproof sealing composite rubber sheet and waterproof sealing structure

Abstract

The utility model relates to the technical field of sealing gaskets, in particular to a waterproof sealing composite rubber sheet and a waterproof sealing structure, which comprise a rubber sealing gasket installed between two flanges, a rubber plug pipe is integrally formed on an inner ring opening of the rubber sealing gasket, and a preformed hole is formed in the surface of the rubber sealing gasket. A rubber bolt sleeve is integrally formed in the preformed hole, and a rubber sleeve is integrally formed on the outer ring face of the rubber sealing gasket. The waterproof sealing composite rubber sheet and the waterproof sealing structure have the advantages that the first cavity and the second cavity are formed in the rubber sealing gasket to form a structure similar to an air bag, when the rubber sealing gasket is clamped between the two flanges, the cavities expand outwards, and therefore the sealing effect of the rubber sealing gasket is improved. The two sides of the rubber sealing gasket are tightly attached to the flanges on the two sides, and therefore the excellent sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of sealing pads, in particular to a waterproof sealing composite rubber sheet and a waterproof sealing structure. Background Art

[0002] Flange connections are widely used in industrial equipment, pipeline connections, and many mechanical devices because of their simple structure and easy disassembly. However, flange connections are often the main source of leakage, especially in high pressure, high temperature or corrosive environments. Traditional sealing methods, such as relying solely on the bolt tightening force between flanges to achieve sealing, often fail to achieve the ideal sealing effect, especially in the face of complex working conditions, the sealing performance is more easily affected.

[0003] In order to improve the sealing performance of flange connections, there are many types of sealing gaskets on the market, such as metal gaskets, graphite gaskets, etc. However, these gaskets may have corrosion, aging and other problems in certain environments (such as highly corrosive media), thus affecting the sealing effect. In addition, some gaskets are easily deformed after being squeezed, resulting in an uneven sealing surface, further reducing the sealing performance.

[0004] Therefore, it is particularly important to develop a sealing gasket that can maintain excellent sealing performance under various working conditions and has good durability and adaptability. Utility Model Content

[0005] The utility model aims to provide a waterproof sealing composite rubber sheet and a waterproof sealing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof sealing composite rubber sheet, including a rubber sealing gasket, which is installed between two flanges, the inner ring mouth of the rubber sealing gasket is integrally formed with a rubber plug tube, the surface of the rubber sealing gasket is provided with a reserved hole, the interior of the reserved hole is integrally formed with a rubber bolt sleeve, and the outer ring surface of the rubber sealing gasket is integrally formed with a rubber sleeve.

[0007] Preferably, the rubber sealing gasket is in the form of a circular plate, and a cavity is provided inside the rubber sealing gasket.

[0008] Preferably, the cavity includes cavity one and cavity two, and cavity two and cavity one are both annular grooves.

[0009] Preferably, the rubber stopper tube is in a circular tube structure, the tube length of the rubber stopper tube is greater than the thickness of the rubber sealing gasket, and the outer annular surfaces at both ends of the rubber stopper tube are provided with arc chamfered surfaces.

[0010] Preferably, the rubber sleeve is in a round tube structure, and the length of the rubber sleeve is greater than the thickness of the rubber sealing gasket.

[0011] Preferably, the rubber bolt sleeve is in a circular tube structure, the tube length of the rubber bolt sleeve is greater than the depth of the reserved hole, and the lengths of both ends of the rubber bolt sleeve protruding from the reserved hole are equal.

[0012] Preferably, a rubber ring is integrally formed on the inner ring surface of the rubber bolt sleeve, and the rubber ring is a circular ring structure with an arc-shaped cross section.

[0013] A waterproof sealing structure comprises a waterproof sealing composite rubber sheet.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The waterproof sealing composite rubber sheet and waterproof sealing structure proposed by the utility model form a structure similar to an airbag by setting cavity one and cavity two inside the rubber sealing gasket. When the rubber sealing gasket is clamped between two flanges, the cavity expands outward, so that the two sides of the rubber sealing gasket are tightly attached to the flanges on both sides, thereby achieving an excellent sealing effect. The design of the rubber plug tube enables it to be inserted into the inner ring mouth of the flange after the rubber sealing gasket is clamped, and its outer ring surface is pressed against the inner wall of the flange, further improving the sealing and stability of the connection between the two flanges. The rubber sleeve is set on the outside of the joint of the two flanges, effectively covering the joint gap, preventing the medium from leaking from the gap, and improving the overall sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a side view of the structure of the utility model;

[0018] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged structure in the middle.

[0020] In the figure: rubber sealing gasket 1, rubber plug tube 2, cavity one 3, cavity two 4, rubber sleeve 5, reserved hole 6, rubber bolt sleeve 7, rubber ring 8. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0022] For example, see Figure 1-Figure 4 The utility model provides a technical solution: a waterproof sealing composite rubber sheet, including a rubber sealing gasket 1, which is installed between two flanges. The rubber sealing gasket 1 is in a circular plate-like structure. A cavity is provided inside the rubber sealing gasket 1. The cavity includes a cavity 1 3 and a cavity 2 4. Both the cavity 2 4 and the cavity 1 3 are annular grooves. The reason why the cavity 1 3 and the cavity 2 4 are provided inside the rubber sealing gasket 1 is to form a structure similar to an airbag inside the rubber sealing gasket 1, so that after the rubber sealing gasket 1 is clamped between the two flanges and deformed, the cavity 1 3 and the cavity 2 4 expand outward so that the two sides of the rubber sealing gasket 1 are only attached to the flanges on both sides.

[0023] The inner ring mouth of the rubber sealing gasket 1 is integrally formed with a rubber plug tube 2, and the rubber plug tube 2 is a circular tube structure. The tube length of the rubber plug tube 2 is greater than the thickness of the rubber sealing gasket 1, and the outer ring surfaces of both ends of the rubber plug tube 2 are provided with arc chamfered surfaces. When the rubber sealing gasket 1 is clamped between the two flanges, the two ends of the rubber plug tube 2 are respectively inserted into the inner ring mouths of the two flanges on both sides, and the outer ring surface of the rubber plug tube 2 is against the inner wall of the inner ring mouth of the flange, thereby improving the sealing of the connection between the two flanges; the outer ring surface of the rubber sealing gasket 1 is integrally formed with a rubber sleeve 5; the rubber sleeve 5 is a circular tube structure, and the tube length of the rubber sleeve 5 is greater than the thickness of the rubber sealing gasket 1. When the rubber sealing gasket 1 is clamped between the two flanges, the rubber sleeve 5 is sleeved on the outside of the joint of the two flanges to cover the joint.

[0024] A reserved hole 6 is formed on the surface of the rubber sealing gasket 1, and a rubber bolt sleeve 7 is integrally formed inside the reserved hole 6. The rubber bolt sleeve 7 is a circular tube structure, and the tube length of the rubber bolt sleeve 7 is greater than the depth of the reserved hole 6. The lengths of the two ends of the rubber bolt sleeve 7 protruding from the reserved hole 6 are equal; a rubber ring 8 is integrally formed on the inner ring surface of the rubber bolt sleeve 7, and the rubber ring 8 is a circular ring structure with an arc-shaped cross section; when the rubber sealing gasket 1 is clamped between the two flanges, the two ends of the rubber bolt sleeve 7 are respectively inserted into the bolt holes of the flanges on both sides. When the two flanges are connected by bolts, the bolts are passed through the bolt holes of the two flanges and the rubber bolt sleeve 7 and then locked. The rubber bolt sleeve 7 and the rubber ring 8 are squeezed between the bolts and the holes to prevent the bolts from loosening. Embodiment 2: Based on Embodiment 1, a waterproof sealing structure is proposed, including a waterproof sealing composite rubber sheet.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof sealing composite rubber sheet, comprising a rubber sealing gasket (1), installed between two flanges, characterized in that: The inner ring opening of the rubber sealing gasket (1) is integrally formed with a rubber plug tube (2), a reserved hole (6) is provided on the surface of the rubber sealing gasket (1), a rubber bolt sleeve (7) is integrally formed inside the reserved hole (6), and a rubber sleeve (5) is integrally formed on the outer ring surface of the rubber sealing gasket (1).

2. The waterproof sealing composite rubber sheet according to claim 1, characterized in that: The rubber sealing gasket (1) is in the form of a circular plate, and a cavity is provided inside the rubber sealing gasket (1).

3. The waterproof sealing composite rubber sheet according to claim 2, characterized in that: The cavity comprises cavity one (3) and cavity two (4), and cavity two (4) and cavity one (3) are both annular grooves.

4. The waterproof sealing composite rubber sheet according to claim 1, characterized in that: The rubber stopper tube (2) is in a circular tube structure, the tube length of the rubber stopper tube (2) is greater than the thickness of the rubber sealing gasket (1), and the outer ring surfaces at both ends of the rubber stopper tube (2) are provided with circular arc chamfered surfaces.

5. The waterproof sealing composite rubber sheet according to claim 1, characterized in that: The rubber sleeve (5) is in a round tube structure, and the length of the rubber sleeve (5) is greater than the thickness of the rubber sealing gasket (1).

6. The waterproof sealing composite rubber sheet according to claim 1, characterized in that: The rubber bolt sleeve (7) is in a circular tube structure. The length of the rubber bolt sleeve (7) is greater than the depth of the reserved hole (6). The lengths of the two ends of the rubber bolt sleeve (7) protruding from the reserved hole (6) are equal.

7. The waterproof sealing composite rubber sheet according to claim 1, characterized in that: The inner ring surface of the rubber bolt sleeve (7) is integrally formed with a rubber ring (8), and the rubber ring (8) is a circular ring structure with an arc-shaped cross section.

8. A waterproof sealing structure, characterized in that: The waterproof sealing composite rubber sheet comprises any one of claims 1 to 7.

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