Valve pressure test sealing disc

Abstract

The utility model discloses a valve pressure test sealing disc mechanism, which aims at solving the problems that the existing valve pressure test sealing disc is usually arranged on a valve seat ring or a valve seat surface, the installation and replacement modes are complicated, and the operation difficulty and the time cost are increased, and the following scheme is provided: the valve pressure test sealing disc mechanism comprises a sealing disc body and an external connection cylinder, the bottom of the sealing disc body is fixedly connected with the top of the external connection cylinder, a plurality of external connection holes are formed in the inner wall of the external connection cylinder, sliding plates are installed in the external connection holes in a sliding mode, curved plates are fixedly installed on one sides of the sliding plates, and cambered surface wedge-shaped plates are fixedly installed on the other sides of the sliding plates. The sealing disc is reasonable in structural design, the circular truncated cone is driven to move upwards, so that the bent face plates are close to the inner wall of the valve seat ring and tightly abut against the inner wall of the valve seat ring, the sealing disc body and the valve seat ring are rapidly and fixedly connected, the installation mode is simple and convenient, and reliability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve pressure testing, and in particular relates to a valve pressure testing sealing disc. Background Art

[0002] There are many types of valves currently in production and use. If there is a problem with the valve, it needs to be repaired and pressure tested after the repair. For valves to be pressure tested after repair, it is necessary to prepare valve flanges of various specifications and valve flange asbestos sheet sealing gaskets of various specifications. Various valves need to be connected with strong bolts and flanges. After the valves are connected with flange seals, they are pressure tested by a pressure tester. The pressure test sealing disc is a special sealing element used for sealing during the valve pressure test process. It is usually installed on the seat ring or seat surface of the valve. The pressure test sealing disc is generally made of pressure-resistant and corrosion-resistant materials, such as rubber, metal or plastic. The pressure test sealing disc can effectively prevent the leakage of the medium and ensure the safety and reliability of the pressure test process.

[0003] However, in the process of implementing the embodiments of the utility model, the inventors found that there are at least the following defects in the background technology: the existing valve pressure test sealing disc is usually installed on the valve seat ring or the valve seat surface, and the installation and replacement methods are relatively complicated, which increases the difficulty and time cost of operation. Therefore, we propose a valve pressure test sealing disc to solve this problem. Utility Model Content

[0004] To achieve the above-mentioned purpose, the utility model proposes a valve pressure test sealing disk, characterized in that, the valve pressure test sealing disk comprises a sealing disk body and an external connecting tube, the bottom of the sealing disk body is fixedly connected to the top of the external connecting tube, a plurality of external connecting holes are opened on the inner wall of the external connecting tube, a slide plate is slidably installed in the external connecting hole, a bent panel is fixedly installed on one side of the slide plate, and an arc-shaped wedge plate is fixedly installed on the other side of the slide plate, a screw rod is rotatably installed on the bottom inner wall of the external connecting tube, a round table is threadedly installed on the outer side of the screw rod, the arc-shaped wedge plate is slidably connected to the round table, and a handle is fixedly installed on one end of the screw rod.

[0005] In one example, a plurality of guide plates are fixedly installed between the bottom inner wall of the external connecting tube and the bottom of the sealing disk body, a plurality of vertical holes are opened on the top of the truncated cone, and the guide plates are slidably installed in the corresponding vertical holes.

[0006] In one example, a short extension plate is fixedly installed on one side of the slide plate, and a plurality of fixed plates are fixedly installed on the inner wall of the external connecting tube, and the short extension plate is slidably sleeved on the outer side of the corresponding fixed plate.

[0007] In one example, a limit spring is fixedly installed on one side of the short extension plate, one end of the limit spring is fixedly connected to the inner wall of the external connecting tube, and the limit spring is wound around the outer side of the corresponding fixed plate.

[0008] In one example, two vertical grooves are opened on one side of the turning handle, and a plug plate is vertically slidably installed in the vertical groove. A plurality of slots are opened on one side of the external tube, and the plurality of slots are arranged in a circle, and the plug plate is movably engaged in the corresponding slots.

[0009] In one example, a same bent handle is fixedly installed on one side of the two plug plates, and a same return spring is fixedly installed between the plug plates and an inner wall of one side of the corresponding vertical slot.

[0010] In one example, a reinforcing plate is fixedly installed on one side of the curved panel, the reinforcing plate is made of rubber material, and a plurality of raised particles are arranged on the reinforcing plate.

[0011] The valve pressure test sealing disc proposed by the utility model can bring the following beneficial effects:

[0012] 1. The rotation of the handle is limited by the cooperation of the plug plate and the return spring, thereby limiting the rotation of the screw rod, preventing the frustum and the arc wedge plate from moving, and improving the stability of the abutment between the bent plate and the inner wall of the valve seat ring;

[0013] 2. By driving the round table to move upward, the round table cooperates with the arc wedge plate to drive multiple slides to move to the side away from the round table, thereby driving multiple bent plates to approach the inner wall of the valve seat ring, so that the bent plates are closely abutted against the inner wall of the valve seat ring, thereby realizing the rapid installation of the sealing disc body; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 The utility model is a three-dimensional structural schematic diagram of a valve pressure test sealing disk.

[0016] Figure 2 The utility model is a schematic cross-sectional structure diagram of a valve pressure test sealing disc.

[0017] Figure 3 for Figure 2 A partial enlarged view of part A.

[0018] Figure 4 for Figure 2 A partial enlarged view of part B.

[0019] In the figure: 1. Sealing disk body; 2. External connecting tube; 3. Slide plate; 4. Bent plate; 5. Arc wedge plate; 6. Screw rod; 7. Round table; 8. Turn handle; 9. Guide plate; 10. Short extension plate; 11. Fixed plate; 12. Limit spring; 13. Insert plate; 14. Bend handle; 15. Return spring; 16. Reinforcement plate. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0021] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0025] like Figure 1 to Figure 4 As shown, an embodiment of the utility model proposes a valve pressure test sealing disk, which includes a sealing disk body 1 and an external connecting tube 2, the bottom of the sealing disk body 1 is fixedly connected to the top of the external connecting tube 2, a plurality of external connecting holes are opened on the inner wall of the external connecting tube 2, a slide plate 3 is slidably installed in the external connecting hole, a bent panel 4 is fixedly installed on one side of the slide plate 3, and an arc-surface wedge plate 5 is fixedly installed on the other side of the slide plate 3, a screw rod 6 is rotatably installed on the bottom inner wall of the external connecting tube 2, a round table 7 is threadedly installed on the outer side of the screw rod 6, the arc-surface wedge plate 5 is slidably connected to the round table 7, and a handle 8 is fixedly installed on one end of the screw rod 6.

[0026] Specifically, a plurality of guide plates 9 are fixedly installed between the bottom inner wall of the external tube 2 and the bottom of the sealing disk body 1, and a plurality of vertical holes are opened on the top of the truncated table 7. The guide plates 9 are slidably installed in the corresponding vertical holes to guide the movement of the truncated table.

[0027] Specifically, a short extension plate 10 is fixedly installed on one side of the slide plate 3, and a plurality of fixed plates 11 are fixedly installed on the inner wall of the external connection tube 2. The short extension plate 10 is slidably sleeved on the outer side of the corresponding fixed plate 11 to guide the movement of the short extension plate.

[0028] Specifically, a limit spring 12 is fixedly installed on one side of the short extension plate 10, one end of the limit spring 12 is fixedly connected to the inner wall of the external tube 2, and the limit spring 12 is wound around the outer side of the corresponding fixed plate 11 to play a role in movement reset of the short extension plate.

[0029] Specifically, two vertical grooves are provided on one side of the turning handle 8, and a plug plate 13 is vertically slidably installed in the vertical grooves. A plurality of slots are provided on one side of the external tube 2, and the plurality of slots are arranged in a circle. The plug plate 13 is movably engaged in the corresponding slots, and the rotation of the turning handle is limited by the cooperation of the plug plate and the slots.

[0030] Specifically, a same bent handle 14 is fixedly installed on one side of the two plug boards 13, and a same return spring 15 is fixedly installed between the plug boards 13 and the inner wall of one side of the corresponding vertical groove to limit the plug boards.

[0031] Specifically, a reinforcing plate 16 is fixedly installed on one side of the curved panel 4. The reinforcing plate 16 is made of rubber material and is provided with a plurality of raised particles. The anti-slip ability of the curved panel is improved by the material of the reinforcing plate and the provision of the raised particles.

[0032] Working principle:

[0033] In the utility model, when in use, by pulling the bent handle 14 downward, the plug plate 13 is driven to move downward, so that the plug plate 13 is disengaged from the slot, and the restriction on the rotation of the handle 8 is released. The handle 8 is rotated to drive the screw rod 6 to rotate, thereby driving the round table 7 to move upward. The round table 7 drives the multiple slides 3 to move to the side away from the round table 7 through the cooperation with the arc wedge plate 5, thereby driving the multiple bent panels 4 to approach the inner wall of the valve seat ring, so that the bent panels 4 are closely abutted against the inner wall of the valve seat ring, thereby fixing the sealing disk body 1 on the valve seat ring.

[0034] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0035] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A valve pressure test sealing disc, characterized in that: The invention comprises a sealing disc body (1) and an external connection tube (2), wherein the bottom of the sealing disc body (1) is fixedly connected to the top of the external connection tube (2), a plurality of external connection holes are opened on the inner wall of the external connection tube (2), a slide plate (3) is slidably installed in the external connection hole, a bent panel (4) is fixedly installed on one side of the slide plate (3), an arc-shaped wedge plate (5) is fixedly installed on the other side of the slide plate (3), a screw rod (6) is rotatably installed on the inner wall of the bottom of the external connection tube (2), a round table (7) is threadedly installed on the outer side of the screw rod (6), the arc-shaped wedge plate (5) is slidably connected to the round table (7), and a rotating handle (8) is fixedly installed on one end of the screw rod (6).

2. A valve pressure test sealing disc according to claim 1, characterized in that: A plurality of guide plates (9) are fixedly installed between the bottom inner wall of the external connection tube (2) and the bottom of the sealing disc body (1), and a plurality of vertical holes are opened on the top of the truncated table (7), and the guide plates (9) are slidably installed in the corresponding vertical holes.

3. A valve pressure test sealing disc according to claim 1, characterized in that: A short extension plate (10) is fixedly mounted on one side of the slide plate (3), and a plurality of fixed plates (11) are fixedly mounted on the inner wall of the external connection tube (2). The short extension plate (10) is slidably mounted on the outer side of the corresponding fixed plate (11).

4. A valve pressure test sealing disc according to claim 3, characterized in that: A limit spring (12) is fixedly installed on one side of the short extension plate (10), one end of the limit spring (12) is fixedly connected to the inner wall of the external connection tube (2), and the limit spring (12) is wound around the outer side of the corresponding fixed plate (11).

5. A valve pressure test sealing disc according to claim 1, characterized in that: One side of the turning handle (8) is provided with two vertical grooves, in which a plug plate (13) is vertically slidably installed, and one side of the external connection tube (2) is provided with a plurality of slots, which are arranged in a circle, and the plug plate (13) is movably engaged in the corresponding slots.

6. A valve pressure test sealing disc according to claim 5, characterized in that: A same curved handle (14) is fixedly mounted on one side of the two inserting plates (13), and a same return spring (15) is fixedly mounted between the inserting plates (13) and an inner wall of one side of the corresponding vertical slot.

7. A valve pressure test sealing disc according to claim 1, characterized in that: A reinforcing plate (16) is fixedly mounted on one side of the bent panel (4); the reinforcing plate (16) is made of rubber material, and a plurality of protruding particles are arranged on the reinforcing plate (16).

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