Valve body outer sleeve capable of adjusting sealing

Abstract

The utility model belongs to the technical field of hydraulic valves, and particularly relates to a sealing-adjustable valve body outer sleeve which comprises a valve body outer sleeve and a valve body connector integrally formed by connectors at the two ends of the valve body outer sleeve, and a rubber sealing ring used for sealing is installed in a sealing groove formed in the end of the valve body connector. An air bag is installed in a groove formed in the outer side of the rubber sealing ring, the air bag is located between the valve body connector and the flange connector, and an air nozzle used for inflation is installed on the air bag. The air bag is installed in a groove formed in the outer side of the rubber sealing ring and located between the valve body connector and the flange connector, and meanwhile the air nozzle used for inflation is installed on the air bag, so that the air pump can inflate the air bag through the air nozzle conveniently, and the edge of the rubber sealing ring can be extruded conveniently after the air bag is inflated. Therefore, the sealing performance of the rubber sealing ring, the valve body connector and the flange connector is adjusted, and the purpose of adjusting the sealing performance of the valve body outer sleeve and an external pipeline is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic valves, and in particular relates to a valve body outer sleeve with adjustable sealing. Background Art

[0002] A hydraulic valve is an automated component operated by pressurized oil. Controlled by a pressure-controlled valve, it is typically used in conjunction with a solenoid-controlled valve to remotely control the on / off flow of oil, gas, and water piping systems in hydropower stations. It is commonly used for clamping, controlling, and lubricating oil circuits. The valve housing is the housing that houses the valve core and is often installed in external piping.

[0003] When the existing valve body sleeve is installed in the external pipeline, the flange hole specifications of the flange joint at the end of the external pipeline are different from those of the valve body sleeve, which can easily cause difficulty in fixing with bolts; in addition, the valve body sleeve and the external pipeline are mainly sealed by a rubber ring, which is easily deformed after long-term use and causes leakage due to insufficient pressure.

[0004] Based on this, an adjustable rubber ring is designed to adjust the sealing valve body jacket. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a valve body jacket with adjustable sealing. The specific technical solution is as follows:

[0006] A valve body housing with adjustable sealing, comprising a valve body housing and valve body connectors integrally formed with the two end connectors of the valve body housing, a clamping member connected to an external pipe being provided on the outside of the valve body connector, and a rubber sealing ring for sealing being installed in a sealing groove provided at the end of the valve body connector;

[0007] The clamping member includes a retaining ring integrally formed on the outer surface of the joints at both ends of the valve body sleeve, a plurality of annularly distributed limiting holes are opened on the retaining ring, a positioning clamping plate for clamping the flange joint is provided on the outer side of the retaining ring, a positioning column and a screw are welded on the surface of the positioning clamping plate, and a plurality of positioning columns and screws are distributed in an annular array, a positioning hole adapted to the positioning column is opened on the surface of the flange joint, and the end of the screw passes through the limiting hole on the surface of the retaining ring and is screwed with a nut to fix;

[0008] An air bag is installed in a groove provided on the outer side of the rubber sealing ring, and the air bag is located between the valve body joint and the flange joint. An air nozzle for inflation is installed on the air bag.

[0009] Preferably, the cross-section of the sealing groove is triangular, the rubber sealing ring is a combination structure of a rectangular ring and a triangular ring, and the triangular ring of the rubber sealing ring is located in the sealing groove, and the rectangular ring of the rubber sealing ring is located between the valve body joint and the flange joint.

[0010] Preferably, the rubber sealing ring is provided with a cavity in the triangular ring, and a silicone ring for support is provided in the cavity.

[0011] Preferably, the positioning clamping plate is composed of two sub-plates, and the two sub-plates are used to clamp the upper part and the lower part of the flange joint.

[0012] Preferably, the split plate is an arc-shaped structure.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. A clamping piece is provided on the outside of the valve body joint, and the clamping piece is composed of a retaining ring, a positioning splint, a positioning column, a screw and a nut. When the flange joint at the end of the external pipe is connected to the valve body outer sleeve, the positioning splint is clamped on the outside of the flange joint at the end of the external pipe, and the screw welded on the surface of the positioning splint passes through the limiting hole opened on the surface of the retaining ring and is fixed by screwing the nut, so that the flange joint is fixed to the end of the valve body joint and is sealed by the rubber sealing ring installed in the sealing groove, which solves the problem that the flange joint at the end of the external pipe is difficult to fix by bolts due to the different specifications of the flange holes when connecting the flange joint of the external pipe to the valve body joint, thereby facilitating the sealed connection between the valve body outer sleeve and the external pipe, and an air bag installed in a groove is provided on the outside of the rubber sealing ring, and the air bag is located between the valve body joint and the flange joint. At the same time, an air nozzle for inflation is installed on the air bag, so that the air pump can inflate the air bag through the air nozzle, so that the edge of the rubber sealing ring can be squeezed after the air bag is inflated, thereby adjusting the sealing of the rubber sealing ring with the valve body joint and the flange joint, thereby achieving the purpose of adjusting the sealing of the valve body outer sleeve and the external pipe.

[0015] 2. Through the sealing groove with a triangular cross-section, the rubber sealing ring is a combination structure of a rectangular ring and a triangular ring, and the triangular ring of the rubber sealing ring is located in the sealing groove, and the rectangular ring of the rubber sealing ring is located between the valve body joint and the flange joint, so that the sealing groove is convenient for limiting the rubber sealing ring installed inside, thereby increasing the stability of the rubber sealing ring installed between the valve body joint and the flange joint.

[0016] 3. The positioning clamp composed of two sub-plates is clamped at the upper and lower parts of the flange joint. When the flange joint is installed at the end of the valve body joint, the lower sub-plate can be fixed with the screw, nut and retaining ring first. When the flange joint at the end of the external pipe is placed between the sub-plate and the valve body joint, the other sub-plate can be installed. This makes it easier for the first installed sub-plate to pre-position the external pipe, thereby improving the stability of the connection between the two ends of the valve body jacket and the external pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the parts structure of the utility model;

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Figure numerals: 1. Valve body sleeve; 2. Valve body joint; 3. Sealing groove; 4. Retaining ring; 5. Flange joint; 6. Positioning splint; 7. Positioning column; 8. Screw; 9. Nut; 10. Rubber sealing ring; 11. Silicone ring; 12. Air bag; 13. Air nozzle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described below.

[0023] See also Figure 1-4 The utility model provides a technical solution: a valve body jacket with adjustable sealing, comprising a valve body jacket 1, and valve body joints 2 integrally formed at both ends of the valve body jacket 1, a clamping piece connected to an external pipe is provided on the outside of the valve body joint 2, and a rubber sealing ring 10 for sealing is installed in a sealing groove 3 provided at the end of the valve body joint 2;

[0024] The clamping member includes a retaining ring 4 integrally formed on the outer surface of the joints at both ends of the valve body sleeve 1, and a plurality of annularly distributed limiting holes are opened on the retaining ring 4. A positioning clamping plate 6 for clamping the flange joint 5 is provided on the outside of the retaining ring 4. Positioning columns 7 and screws 8 are welded to the surface of the positioning clamping plate 6, and a plurality of positioning columns 7 and screws 8 are distributed in an annular array. The surface of the flange joint 5 is provided with a positioning hole adapted to the positioning column 7. The end of the screw 8 passes through the limiting hole on the surface of the retaining ring 4 and is screwed with a nut 9 to fix it;

[0025] An air bag 12 is installed in a groove provided on the outside of the rubber sealing ring 10 , and the air bag 12 is located between the valve body joint 2 and the flange joint 5 . An air nozzle 13 for inflation is installed on the air bag 12 .

[0026] In this embodiment, a clamping member is provided on the outside of the valve body joint 2, and the clamping member is composed of a retaining ring 4, a positioning splint 6, a positioning column 7, a screw 8 and a nut 9, so that when the flange joint 5 at the end of the external pipe is connected to the valve body jacket 1, the positioning splint 6 is clamped on the outside of the flange joint 5 at the end of the external pipe, and the screw 8 welded on the surface of the positioning splint 6 passes through the limiting hole opened on the surface of the retaining ring 4 and is fixed by screwing the nut 9, so that the flange joint 5 is fixed to the end of the valve body joint 2 and is sealed by the rubber sealing ring 10 installed in the sealing groove 3, which solves the problem of the flange joint 5 at the end of the external pipe being connected to the valve body joint 2 due to the law. The different specifications of the flange holes make it difficult to fix them with bolts, which facilitates the sealed connection between the valve body sleeve 1 and the external pipeline, and an air bag 12 is installed in a groove on the outside of the rubber sealing ring 10, and the air bag 12 is located between the valve body joint 2 and the flange joint 5. At the same time, an air nozzle 13 for inflation is installed on the air bag 12, which facilitates the air pump to inflate the air bag 12 through the air nozzle 13, so that the air bag 12 can squeeze the edge of the rubber sealing ring 10 after inflation, thereby adjusting the sealing of the rubber sealing ring 10 with the valve body joint 2 and the flange joint 5, thereby achieving the purpose of adjusting the sealing between the valve body sleeve 1 and the external pipeline.

[0027] Specifically, the sealing groove 3 has a triangular cross-section, the rubber sealing ring 10 is a combination of a rectangular ring and a triangular ring, and the triangular ring of the rubber sealing ring 10 is located within the sealing groove 3, and the rectangular ring of the rubber sealing ring 10 is located between the valve body joint 2 and the flange joint 5. In this embodiment, the sealing groove 3 has a triangular cross-section, and the rubber sealing ring 10 is a combination of a rectangular ring and a triangular ring, and the triangular ring of the rubber sealing ring 10 is located within the sealing groove 3, and the rectangular ring of the rubber sealing ring 10 is located between the valve body joint 2 and the flange joint 5. This facilitates the sealing groove 3 to limit the position of the rubber sealing ring 10 installed therein, thereby increasing the stability of the rubber sealing ring 10 installed between the valve body joint 2 and the flange joint 5.

[0028] Specifically, the rubber sealing ring 10 is provided with a cavity in the triangular ring, and a silicone ring 11 is provided in the cavity for support. In this embodiment, the silicone ring 11 is convenient for supporting the rubber sealing ring 10, thereby increasing the stability of the rubber sealing ring 10 structure.

[0029] Specifically, the positioning clamp 6 is composed of two sub-plates 61, and the two sub-plates 61 are used to clamp the upper and lower portions of the flange joint 5. In this embodiment, the sub-plates 61 are of an arc-shaped structure. By simultaneously clamping the upper and lower portions of the flange joint 5, when the flange joint 5 is installed at the end of the valve body joint 2, the lower sub-plate 61 can be first fixed to the retaining ring 4 via the screw 8 and nut 9. When the flange joint 5 at the end of the external pipe is placed between the sub-plate 61 and the valve body joint 2, the other sub-plate 61 can be installed. This facilitates the pre-positioning of the external pipe by the first sub-plate 61, making installation more labor-saving and convenient, while also improving the stability of the connection between the two ends of the valve body jacket 1 and the external pipe.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A valve body housing with adjustable sealing, comprising a valve body housing (1), and a valve body connector (2) integrally formed with connectors at both ends of the valve body housing (1), characterized in that: A clamping piece connected to an external pipe is provided on the outside of the valve body joint (2), and a rubber sealing ring (10) for sealing is installed in the sealing groove (3) provided at the end of the valve body joint (2); The clamping member includes a retaining ring (4) integrally formed on the outer surface of the joints at both ends of the valve body sleeve (1), a plurality of annularly distributed limiting holes are opened on the retaining ring (4), a positioning clamping plate (6) for clamping the flange joint (5) is provided on the outer side of the retaining ring (4), a positioning column (7) and a screw (8) are welded on the surface of the positioning clamping plate (6), and a plurality of positioning columns (7) and screws (8) are distributed in an annular array, a positioning hole adapted to the positioning column (7) is opened on the surface of the flange joint (5), and the end of the screw (8) passes through the limiting hole on the surface of the retaining ring (4) and is screwed on the nut (9) for fixing; An air bag (12) is installed in a groove provided on the outer side of the rubber sealing ring (10), and the air bag (12) is located between the valve body joint (2) and the flange joint (5). An air nozzle (13) for inflation is installed on the air bag (12).

2. The valve body housing with adjustable sealing according to claim 1, characterized in that: The cross section of the sealing groove (3) is triangular, and the rubber sealing ring (10) is a combined structure of a rectangular ring and a triangular ring, wherein the triangular ring of the rubber sealing ring (10) is located in the sealing groove (3), and the rectangular ring of the rubber sealing ring (10) is located between the valve body joint (2) and the flange joint (5).

3. The valve body housing with adjustable sealing according to claim 2, characterized in that: The rubber sealing ring (10) is provided with a cavity in the triangular ring, and a silicone ring (11) for support is provided in the cavity.

4. The valve body housing with adjustable sealing according to claim 1, characterized in that: The positioning clamping plate (6) is composed of two sub-plates (61), and the two sub-plates (61) are used to clamp the upper part and the lower part of the flange joint (5).

5. The valve body housing with adjustable sealing according to claim 4, characterized in that: The dividing plate (61) is an arc-shaped structure.

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