Self-sealing angle type valve pressure test tool

Abstract

The utility model relates to the technical field of valve body sealing detection, in particular to a self-sealing angle type valve pressure test tool which comprises an angle type valve body, a liquid inlet end and a liquid outlet end which are perpendicular to each other are arranged on the angle type valve body, and the internal structures of the liquid inlet end and the liquid outlet end in the angle type valve body are the same. Self-sealing modules are arranged in the liquid inlet end and the liquid outlet end of the angle type valve body, each self-sealing module comprises a self-sealing box, a self-sealing ring, a cushion block, a four-element ring and a pressing plate, the self-sealing boxes are guided into the angle type valve body, and the pressing plates pressed on the surfaces of the self-sealing boxes are arranged on the outer sides of the self-sealing boxes. A self-sealing ring guided and installed in the valve body is further arranged in the valve body, the self-sealing ring is pressed on the outer side of the self-sealing box, and a cushion block and a four-element ring guided into the valve body are installed between the self-sealing ring and the pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of valve body sealing detection, in particular to a self-sealing angle valve pressure testing tool. Background Art

[0002] The cam is provided with a plurality of control plates, and the control plates are respectively provided with a plurality of control plates, and the control plates are respectively provided with a plurality of control plates, and the control plates are respectively provided with a plurality of control plates.

[0003] Although this valve pressure test bench is easy to operate and can quickly test valve pressure, this structure of the pressure test bench can only effectively test straight-through valves. However, for valves with special structures, such as butt-welded high-pressure angle stop valves, butt-welded angle discharge valves and other angle valves, the two connecting surfaces of these special valves are 90°, and the above-mentioned pressure test pump bench cannot be used for testing. This requires the configuration of corresponding pressure test tooling to achieve valve pressure testing. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a self-sealing angle valve pressure test tooling, the above technical purpose is achieved through the following technical solutions:

[0005] A self-sealing angle valve pressure testing tool comprises an angle valve body, the angle valve body is provided with a liquid inlet end and a liquid outlet end which are perpendicular to each other, the liquid inlet end and the liquid outlet end of the angle valve body have the same internal structure, a self-sealing module is provided inside the liquid inlet end and the liquid outlet end of the angle valve body, the self-sealing module comprises a self-sealing box, a self-sealing ring, a gasket, a four-ring and a pressure plate, the self-sealing box is introduced into the interior of the angle valve body, the outside of the self-sealing box is provided with a pressure plate which is pressed onto the surface of the self-sealing box, the interior of the valve body is also provided with a self-sealing ring which is introduced and installed therein, the self-sealing ring is pressed onto the outside of the self-sealing box, and the gasket and four-ring introduced into the valve body are installed between the self-sealing ring and the pressure plate.

[0006] Furthermore, a valve body groove is opened inside the angle valve body, and a four-way ring is installed inside the valve body groove. The inner structure of the four-way ring entity is pressed against the outside of the gasket, pressing the gasket tightly against the outside of the self-sealing ring, and the outer structure of the four-way ring entity is pressed against the bottom surface of the valve body groove.

[0007] Furthermore, the surface of the pressure plate is provided with a through hole that penetrates its own structure, the inside of the self-sealing box is provided with a threaded hole that cooperates with the through hole, a stud installed inside the through hole and the threaded hole is provided between the pressure plate and the self-sealing box, and a nut is provided on the outside of the stud that is tightly screwed into the outside of the stud.

[0008] Furthermore, the outer circle of the self-sealing box is provided with a self-sealing box inclined surface, and the inner circle of the self-sealing ring is provided with a sealing inclined surface matching the shape of the self-sealing box inclined surface. When the self-sealing ring is pressed against the outside of the self-sealing box, the sealing inclined surface contacts the self-sealing box inclined surface.

[0009] Furthermore, the pad is installed between the self-sealing ring and the four-ring, the lower surface of the pad is in contact and pressed against the upper surface of the self-sealing ring, and the upper surface of the pad is in contact and pressed against the lower surface of the four-ring.

[0010] Furthermore, an elastic circular arc groove is provided on the outer side wall of the self-sealing ring, and when the self-sealing ring is under pressure, the elastic circular arc groove is deformed to generate a self-sealing force.

[0011] Furthermore, the quadruple ring is formed by splicing four groups of independent sealing rings.

[0012] Furthermore, a threaded hole is provided in the middle of the self-sealing box, an inlet pipe is assembled through the threaded hole on the self-sealing box at the liquid inlet end, and an outlet pipe is assembled through the threaded hole on the self-sealing box at the liquid outlet end, and a needle valve is also installed at the outlet pipe.

[0013] In summary, the present invention has the following beneficial effects:

[0014] ① The utility model solves the problem that the traditional pressure test pump station cannot perform pressure test on the angle valve due to its special structure through the embedded tooling structure design;

[0015] ② The utility model is installed at the liquid inlet and outlet ends of the valve body. After the studs are driven in and the nuts are screwed on, the overall structure can realize the self-sealing function, thereby preventing leakage at the liquid inlet and outlet ends of the valve body during the pressure test and ensuring the reliability during the pressure test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application, but do not constitute an improper limitation of the present invention. In the drawings:

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

[0018] Figure 2 This is a schematic diagram of the valve body structure in the utility model;

[0019] Figure 3 This is a schematic diagram of the self-sealing box structure in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the self-sealing ring of the utility model;

[0021] Figure 5 This is a schematic diagram of the cushion structure in the utility model;

[0022] Figure 6 It is a schematic diagram of the four-ring structure in the utility model.

[0023] In the figure, 1. valve body; 101. valve body groove; 2. self-sealing box; 201. threaded hole; 202. self-sealing box inclined surface; 203. threaded center hole; 3. self-sealing ring; 301. sealing inclined surface; 302. elastic arc groove; 4. gasket; 5. four-way ring; 6. pressure plate; 601. through hole; 7. bolt; 8. nut; 9. inlet pipe; 10. outlet pipe; 1001. needle valve. DETAILED DESCRIPTION

[0024] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figure 1 To the attached Figure 6 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the accompanying drawings.

[0025] Various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. Example

[0026] A self-sealing angle valve pressure test tool comprises an angle valve body 1. The angle valve body 1 is provided with a liquid inlet and a liquid outlet which are perpendicular to each other. The internal structures of the liquid inlet and the liquid outlet of the angle valve body 1 are the same.

[0027] A self-sealing module is provided inside the liquid inlet and outlet ends of the angle valve body 1 , and the self-sealing module includes a self-sealing box 2 , a self-sealing ring 3 , a gasket 4 , a four-ring 5 and a pressure plate 6 .

[0028] A threaded hole 203 is provided in the middle of the self-sealing box 2, and an inlet pipe 9 is assembled with the threaded hole 203 on the self-sealing box 2 at the liquid inlet end, and an outlet pipe 10 is assembled with the threaded hole 203 on the self-sealing box 2 at the liquid outlet end. The inlet pipe 9 is provided with a threaded end, which is assembled with the threaded hole 203 of the self-sealing box 2 at the liquid inlet end to form a threaded seal at the inlet end. The outlet pipe 10 is also provided with a threaded end, which is assembled with the threaded hole 203 of the self-sealing box 2 at the liquid outlet end to form a threaded seal at the outlet end.

[0029] Preferably, a needle valve 1001 is also installed at the outlet pipe 10 to detect the pressure test strength and sealing leakage of the valve body 1. When the valve undergoes a shell strength test, the needle valve is closed and forms a whole with the valve to detect whether the shell strength is qualified. When the seal is tested, the needle valve is opened. If there is no medium flowing out, it means that the valve seal is intact, otherwise the seal is leaking.

[0030] The specific structure of the self-sealing module is as follows:

[0031] The self-sealing box 2 is introduced into the interior of the angle valve body 1. The outer side of the self-sealing box 2 is provided with a pressure plate 6 pressed on the surface of the self-sealing box 2. The interior of the valve body 1 is also provided with a self-sealing ring 3 introduced and installed therein. The self-sealing ring 3 is pressed on the outer side of the self-sealing box 2. The gasket 4 and the four-ring 5 introduced into the valve body 1 are installed between the self-sealing ring 3 and the pressure plate 6. The structures arranged from the outside to the inside are the pressure plate 6, the four-ring 5, the gasket 4, the self-sealing ring 3, and the self-sealing box 2.

[0032] A self-sealing box slope 202 is provided around the outer circle of the self-sealing box 2, and a sealing slope 301 matching the shape of the self-sealing box slope 202 is provided around the inner circle of the self-sealing ring 3. When the self-sealing ring 3 is pressed against the outside of the self-sealing box 2, the sealing slope 301 contacts the self-sealing box slope 202, and no sealing force is formed at this time.

[0033] A valve body groove 101 is opened inside the angle valve body 1, and a four-ring 5 is installed inside the valve body groove 101. The inner structure of the four-ring 5 entity is pressed tightly against the outside of the gasket 4, and the gasket 4 is tightly pressed against the outside of the self-sealing ring 3. The outer structure of the four-ring 5 entity is pressed tightly against the bottom surface of the valve body groove 101.

[0034] The pad 4 is installed between the self-sealing ring 3 and the four-ring 5. The lower surface of the pad 4 is pressed against the upper surface of the self-sealing ring 3, and the upper surface of the pad 4 is pressed against the lower surface of the four-ring 5.

[0035] The surface of the pressure plate 6 is provided with a through hole 601 that penetrates its own structure, and the inside of the self-sealing box 2 is provided with a threaded hole 201 that matches the through hole 601. A stud installed inside the through hole 601 and the threaded hole 201 is provided between the pressure plate 6 and the self-sealing box 2, and a nut 8 that is tightly screwed into the outside of the stud is provided on the outside of the stud. The nut 8 is pressed against the outside of the pressure plate 6 and compacts the structure in the self-sealing module.

[0036] Under the action of the above-mentioned nuts 8 and studs, the self-sealing module is extruded inward as a whole, and the self-sealing box 2 presses the self-sealing ring 3, and moves together toward the gasket 4 and the four-ring 5 to be pressed. The elastic arc groove 302 provided on the self-sealing ring 3 is deformed by the pressing force to generate a sealing force, forcing the sealing inclined surface 301 of the self-sealing ring 3 to be squeezed with the inclined surface 202 of the self-sealing box to form a self-sealing force, and at the same time, the outer diameter of the self-sealing ring 3 is forced to be pressed against the inner diameter of the valve body 1 and generate a self-sealing force, thereby realizing the self-sealing function.

[0037] Preferably, an elastic circular arc groove 302 is provided on the outer side wall of the self-sealing ring 3. When the self-sealing ring 3 is under pressure, the elastic circular arc groove 302 is deformed to generate a self-sealing force.

[0038] Preferably, the quadruple ring 5 is formed by splicing four groups of independent sealing rings, which are spliced ​​together into a complete annular structure, making it convenient to replace corresponding parts when the seal fails, saving replacement costs.

[0039] The above is a further detailed description of the present invention in combination with a specific implementation method, and it cannot be determined that the specific implementation of the present invention is limited to this. For technical personnel in the field of the present invention and related technical fields, based on the technical solution of the present invention, any expansion and replacement of operating methods and data should fall within the scope of protection of the present invention.

Claims

1. A self-sealing angle valve pressure test tool, characterized by: The invention comprises an angle valve body (1), wherein the angle valve body (1) is provided with a liquid inlet end and a liquid outlet end which are perpendicular to each other, wherein the liquid inlet end and the liquid outlet end of the angle valve body (1) have the same internal structure, wherein the liquid inlet end and the liquid outlet end of the angle valve body (1) are provided with a self-sealing module, wherein the self-sealing module comprises a self-sealing box (2), a self-sealing ring (3), a cushion block (4), a four-ring (5) and a pressure plate (6), wherein the self-sealing box (2) is introduced into the interior of the angle valve body (1), wherein the outer side of the self-sealing box (2) is provided with a pressure plate (6) pressed onto the surface of the self-sealing box (2), wherein the interior of the valve body (1) is further provided with a self-sealing ring (3) introduced and installed therein, wherein the self-sealing ring (3) is pressed onto the outer side of the self-sealing box (2), and a cushion block (4) and a four-ring (5) introduced into the valve body (1) are installed between the self-sealing ring (3) and the pressure plate (6).

2. A self-sealing angle valve pressure testing tool according to claim 1, characterized in that: A valve body groove (101) is provided inside the angle valve body (1), and a four-way ring (5) is installed inside the valve body groove (101). The inner structure of the four-way ring (5) is pressed against the outside of the cushion block (4), and the cushion block (4) is pressed tightly against the outside of the self-sealing ring (3). The outer structure of the four-way ring (5) is pressed against the bottom surface of the valve body groove (101).

3. The self-sealing angle valve pressure testing tool according to claim 1, characterized in that: The surface of the pressure plate (6) is provided with a through hole (601) penetrating the pressure plate itself, the interior of the self-sealing box (2) is provided with a threaded hole (201) cooperating with the through hole (601), a stud installed inside the through hole (601) and the threaded hole (201) is provided between the pressure plate (6) and the self-sealing box (2), and a nut (8) is provided on the outside of the stud and screwed tightly onto the outside of the stud.

4. The self-sealing angle valve pressure testing tool according to claim 1, characterized in that: The outer ring of the self-sealing box (2) is provided with a self-sealing box inclined surface (202), and the inner ring of the self-sealing ring (3) is provided with a sealing inclined surface (301) matching the shape of the self-sealing box inclined surface (202). When the self-sealing ring (3) is pressed onto the outside of the self-sealing box (2), the sealing inclined surface (301) contacts the self-sealing box inclined surface (202).

5. The self-sealing angle valve pressure testing tool according to claim 2, characterized in that: The pad (4) is installed between the self-sealing ring (3) and the four-ring (5), the lower surface of the pad (4) is in contact and pressed against the upper surface of the self-sealing ring (3), and the upper surface of the pad (4) is in contact and pressed against the lower surface of the four-ring (5).

6. The self-sealing angle valve pressure testing tool according to claim 2, characterized in that: An elastic circular arc groove (302) is provided on the outer side wall of the self-sealing ring (3), and when the self-sealing ring (3) is subjected to pressure, the elastic circular arc groove (302) deforms to generate a self-sealing force.

7. The self-sealing angle valve pressure testing tool according to claim 2, characterized in that: The four-ring (5) is formed by splicing four groups of independent sealing rings.

8. The self-sealing angle valve pressure testing tool according to claim 1, characterized in that: A threaded middle hole (203) is provided in the middle of the self-sealing box (2); an inlet pipe (9) is assembled at the liquid inlet end through the threaded middle hole (203) on the self-sealing box (2); an outlet pipe (10) is assembled at the liquid outlet end through the threaded middle hole (203) on the self-sealing box (2); and a needle valve (1001) is also installed at the outlet pipe (10).

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