A sealing assembly and a flat valve

Abstract

The utility model relates to the technical field of valve body seals, specifically to a sealing assembly and a flat valve, comprising a rubber sealing pad, which is clamped between the flat valve and a flange of a delivery pipe, a through hole being opened on the surface of the rubber sealing pad, a rubber introduction sleeve being fixed on the surface of the rubber sealing pad, the rubber introduction sleeve being inserted into the bolt hole of the flange, two groups of rubber introduction sleeves being arranged, and the two groups of rubber introduction sleeves being symmetrically distributed about the rubber sealing pad; the beneficial effects are as follows: the sealing assembly and the flat valve proposed by the utility model, after the rubber sealing pad is clamped between two flanges and clamped, the scratches and bumps on the surface of the flange are filled, and the rubber introduction sleeve is extended into the bolt hole to prevent the bolt from loosening in the bolt hole; the problem of poor sealing hidden danger after the flange connection between the existing flat valve and the delivery pipe is further solved, and the sealing of the flat valve and the delivery pipe after the flange connection can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of valve body sealing components, in particular to a sealing component and a flat valve. Background Art

[0002] The main function of the flat plate valve is to cut off and connect the fluid, which is suitable for infrequent valve operation. It can be used for gas, liquid and fluid containing suspended particles, such as mud, fiber, powder and granular medium. In addition, the flat plate valve is also suitable for vacuum environment and low temperature environment; currently, the flat plate valve and the conveying pipe are connected by flange and bolts.

[0003] In the prior art, after the flange between the flat valve and the bolts is connected, the vibration of the pipe body generated during the material transportation process affects the tightening strength of the bolts, and when scratches or bumps appear on the surface of the flange, the sealing between the two flanges will be affected.

[0004] Therefore, we need a sealing assembly and a flat valve to solve the problem of poor sealing after the flange connection between the existing flat valve and the delivery pipe, and ensure the sealing of the flat valve and the delivery pipe after the flange connection. Utility Model Content

[0005] The purpose of the utility model is to provide a sealing assembly and a flat valve to solve the problem of poor sealing after the flange connection between the existing flat valve and the delivery pipe proposed in the above background technology, so as to ensure the sealing of the flat valve and the delivery pipe after the flange connection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing assembly, including a rubber sealing pad, which is clamped between a flat valve and a flange of a conveying pipeline, a through hole is opened on the surface of the rubber sealing pad, a rubber introduction sleeve is fixed on the surface of the rubber sealing pad, the rubber introduction sleeve is inserted into the bolt hole of the flange, two groups of rubber introduction sleeves are provided, and the two groups of rubber introduction sleeves are symmetrically distributed about the rubber sealing pad.

[0007] Preferably, there are multiple through holes, which correspond one to one with the bolt holes set on the flange surface, the rubber introduction sleeve corresponds to the through holes, the inner ring diameter of the rubber introduction sleeve is smaller than the aperture of the through holes, and the outer diameter of the rubber introduction sleeve is equal to the aperture of the bolt holes on the flange surface.

[0008] Preferably, the tube length of the rubber introduction sleeve is equal to the thickness of the flange, a rubber baffle is fixed to one end of the rubber introduction sleeve, the outer ring diameter of the rubber baffle is larger than the outer ring diameter of the rubber introduction sleeve, and after the rubber introduction sleeve is inserted into the bolt hole on the surface of the flange, the rubber baffle is on one side of the flange.

[0009] Preferably, a reserved hole is opened on the surface of the rubber introduction sleeve, the hole depth of the reserved hole is equal to the tube length of the rubber introduction sleeve, a plurality of reserved holes are provided, and the plurality of reserved holes are arranged and distributed along the end annular surface of the rubber introduction sleeve at equal distances and sizes, and a flexible metal rib is inserted and fixed inside the reserved hole.

[0010] Preferably, a rubber ring is fixed on the surface of the through hole.

[0011] A flat plate valve comprises a sealing assembly.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The sealing assembly and flat valve proposed by the utility model, after the rubber sealing gasket is clamped between two flanges and tightened, fills the scratches and bumps on the surface of the flanges, and the rubber guide sleeve extends into the bolt hole to prevent the bolts from loosening in the bolt hole; the problem of poor sealing after the flange connection between the existing flat valve and the delivery pipe is further solved, and the sealing of the flat valve and the delivery pipe after the flange connection can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a side view of the structure of the utility model;

[0016] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 5 The utility model is a schematic diagram of the connection structure of the rubber introduction sleeve and the rubber baffle.

[0019] In the figure: rubber sealing pad 1, through hole 2, rubber introduction sleeve 3, reserved hole 4, flexible metal rib 5, rubber baffle 6, rubber ring 7. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a sealing assembly, comprising a rubber sealing pad 1, the rubber sealing pad 1 is clamped between a flat valve and a flange of a delivery pipeline, a through hole 2 is opened on the surface of the rubber sealing pad 1, a rubber introduction sleeve 3 is fixed on the surface of the rubber sealing pad 1, a plurality of through holes 2 are provided, the through holes 2 correspond to the bolt holes arranged on the surface of the flange one by one, the rubber introduction sleeve 3 corresponds to the through holes 2, the inner ring diameter of the rubber introduction sleeve 3 is smaller than the aperture of the through hole 2, and the outer diameter of the rubber introduction sleeve 3 is equal to the aperture of the bolt hole on the surface of the flange; a rubber ring 7 is fixed on the surface of the through hole 2;

[0023] After the rubber sealing gasket 1 is clamped between the flat valve and the flange of the conveying pipeline, even if there are scratches or pits on the surface of the flange, when the two flanges are locked by bolts, the rubber sealing gasket 1 is compressed and elastically deformed, and the rubber sealing gasket 1 expanded outward under pressure fills the defects on the surface of the flange, thereby ensuring the sealing of the two flanges after connection; and after the bolt passes through the rubber introduction sleeve 3, the rubber introduction sleeve 3 is clamped between the bolt and the bolt hole on the surface of the flange, thereby improving the sealing between the bolt and the bolt hole.

[0024] The rubber introduction sleeve 3 is inserted into the bolt hole of the flange. Two groups of rubber introduction sleeves 3 are provided. The two groups of rubber introduction sleeves 3 are symmetrically distributed about the rubber sealing gasket 1. The tube length of the rubber introduction sleeve 3 is equal to the thickness of the flange. A rubber baffle 6 is fixed at one end of the rubber introduction sleeve 3. The outer ring diameter of the rubber baffle 6 is larger than the outer ring diameter of the rubber introduction sleeve 3. After the rubber introduction sleeve 3 is inserted into the bolt hole on the surface of the flange, the rubber baffle 6 is located on one side of the flange. A reserved hole 4 is opened on the surface of the rubber introduction sleeve 3. The hole depth of the reserved hole 4 is equal to the tube length of the rubber introduction sleeve 3. A plurality of reserved holes 4 are provided. The plurality of reserved holes 4 are arranged and distributed at equal distances and sizes along the end annular surface of the rubber introduction sleeve 3. A flexible metal rib 5 is inserted and fixed inside the reserved hole 4.

[0025] After the rubber introduction sleeve 3 is inserted into the bolt hole, the rubber baffle 6 is located at one side of the flange. As the bolt is tightened, the rubber baffle 6 is clamped between the end plate of the bolt and the flange to act as an elastic gasket.

[0026] Embodiment 2

[0027] Based on the first embodiment, a flat valve is proposed, including a sealing assembly.

[0028] 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 sealing assembly, comprising a rubber sealing pad (1), the rubber sealing pad (1) being clamped between a flat valve and a flange of a delivery pipeline, characterized in that: The surface of the rubber sealing pad (1) is provided with a through hole (2), the surface of the rubber sealing pad (1) is fixed with a rubber introduction sleeve (3), the rubber introduction sleeve (3) is inserted into the bolt hole of the flange, and two groups of rubber introduction sleeves (3) are provided, and the two groups of rubber introduction sleeves (3) are symmetrically distributed with respect to the rubber sealing pad (1).

2. A sealing assembly according to claim 1, characterized in that: The through holes (2) are provided with a plurality of holes, the through holes (2) and the bolt holes provided on the surface of the flange plate correspond one to one, the rubber introduction sleeve (3) corresponds to the through holes (2), the inner ring diameter of the rubber introduction sleeve (3) is smaller than the hole diameter of the through holes (2), and the outer diameter of the rubber introduction sleeve (3) is equal to the hole diameter of the bolt holes on the surface of the flange plate.

3. A sealing assembly according to claim 1, characterized in that: The length of the rubber introduction sleeve (3) is equal to the thickness of the flange. A rubber baffle (6) is fixed to one end of the rubber introduction sleeve (3). The outer ring diameter of the rubber baffle (6) is larger than the outer ring diameter of the rubber introduction sleeve (3). After the rubber introduction sleeve (3) is inserted into the bolt hole on the surface of the flange, the rubber baffle (6) is located on one side of the flange.

4. A sealing assembly according to claim 1, characterized in that: A reserved hole (4) is provided on the surface of the rubber introduction sleeve (3), the depth of the reserved hole (4) is equal to the tube length of the rubber introduction sleeve (3), a plurality of the reserved holes (4) are provided, and the plurality of reserved holes (4) are arranged and distributed at equal distances and in equal sizes along the end annular surface of the rubber introduction sleeve (3), and a flexible metal rib (5) is inserted and fixed inside the reserved hole (4).

5. A sealing assembly according to claim 1, characterized in that: A rubber ring (7) is fixed on the surface of the through hole (2).

6. A flat plate valve, characterized in that: A sealing assembly comprising any one of claims 1 to 5.

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