A valve seat packing ring installation tool for a VCR diaphragm valve

Abstract

The utility model provides a kind of valve seat sealing ring installation tool of VCR diaphragm valve, the intermediate passage is formed between the valve body and valve seat of VCR diaphragm valve, and the upper end plane of the intermediate passage is provided with sealing ring installation groove;The outside of the sealing ring installation groove is provided with stainless steel wall, and the inside of the stainless steel wall is in contact with the outer circle of sealing ring;The valve seat sealing ring installation tool includes pressing mechanism, and the pressing mechanism is cylindrical barrel, and the inside wall bottom of the pressing mechanism is provided with inclined plane and vertical surface, and the vertical surface is in contact with the outside of stainless steel wall;The outside of the stainless steel wall is provided with first step, and the first step is used to install pressing mechanism;When the pressing mechanism descends to the first step, inclined plane extrudes stainless steel wall, so that the stainless steel wall is closely attached with sealing ring.The installation tool provided by the utility model can make the deformation of the stainless steel wall outside sealing ring, so as to ensure that sealing ring and stainless steel wall are closely combined, and improve sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm valve technology, specifically to a valve seat sealing ring installation tool for a VCR diaphragm valve. Background Technology

[0002] In the manufacturing and assembly of VCR (Vacuum Coupling Radial Valve) diaphragm valves, i.e., vacuum-connected radial sealing valves, the installation of the valve seat seal ring is a key step in ensuring the valve's sealing performance.

[0003] Currently, the installation of existing valve seat seals mainly adopts the press-fit method, which usually relies on strict tolerance standards to ensure assembly accuracy. Specifically, the dimensional tolerances of the valve seat and valve body need to be very precise to ensure that the seal can be correctly installed and achieve a sealing effect. However, the problems include: (1) The press-fit method has extremely high requirements for machining dimensional tolerances, and the machining accuracy of the valve seat and valve body needs to be strictly guaranteed to ensure that the required sealing effect can be achieved during assembly; (2) The manufacturing cost and processing difficulty are high; (3) During the press-fit process, the pressure needs to be strictly controlled to avoid damage to the valve seat due to excessive pressure; (4) Even with strict tolerance control and protective measures, the sealing performance may still be unsatisfactory due to the elastic deformation of the material and small errors in the assembly process, thus affecting the overall performance of the valve.

[0004] Therefore, providing a valve seat seal ring installation tool for VCR diaphragm valves is a technical problem that needs to be solved in this field. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a valve seat sealing ring installation tool for a VCR diaphragm valve. This tool can deform the stainless steel wall on the outside of the sealing ring, thereby ensuring a tight fit between the sealing ring and the stainless steel wall and improving sealing performance.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a valve seat sealing ring installation tool for a VCR diaphragm valve. The VCR diaphragm valve includes a valve body and a valve seat, with an intermediate channel formed between the valve body and the valve seat. A sealing ring installation groove is provided on the upper surface of the intermediate channel.

[0008] The outer side of the sealing ring mounting groove is provided with a stainless steel wall, and the inner side of the stainless steel wall is in contact with the outer circle of the sealing ring.

[0009] The valve seat sealing ring installation tool includes a pressing mechanism, which is a cylindrical body. The bottom of the inner wall of the pressing mechanism is provided with an inclined surface and a vertical surface connected sequentially from top to bottom. The vertical surface contacts the outer side of the stainless steel wall.

[0010] The stainless steel wall is provided with a first step on the outside, and the first step is used to install the pressing mechanism;

[0011] When the pressing mechanism descends to the first step, the inclined surface presses against the stainless steel wall, causing the stainless steel wall to fit tightly against the sealing ring.

[0012] In this invention, the inclined surface of the pressing mechanism presses against the stainless steel wall, making the stainless steel wall fit tightly against the sealing ring, ensuring that the sealing ring is evenly stressed in the mounting groove, thereby significantly improving the sealing performance, reducing machining and assembly requirements, simplifying the assembly process, enhancing the reliability and adaptability of the valve, and reducing maintenance costs.

[0013] Preferably, the valve seat sealing ring installation tool further includes an installation mechanism; the installation mechanism includes a square body containing a cavity; a circular through hole is provided above the cavity; and the pressing mechanism is disposed in the circular through hole.

[0014] In this invention, the pressing mechanism can slide within the circular through hole, thereby achieving the action of applying downward pressure.

[0015] Preferably, the upper surface of the valve body is provided with a second step, which is used to place the mounting mechanism.

[0016] Preferably, the upper part of the valve body is provided with an external thread mechanism; the external thread mechanism is located in the cavity of the square body.

[0017] Preferably, the valve seat seal ring installation tool further includes a pressure block; the pressure block is disposed above the pressing mechanism.

[0018] In this invention, the pressure block is positioned above the pressing mechanism to press the pressing mechanism downwards, ensuring the stability and uniformity of the pressing action.

[0019] Preferably, the bottom of the inclined surface is inclined outward from the inner wall of the pressing mechanism.

[0020] In this invention, the inclined surface refers to the bottom of the inner wall of the pressing mechanism tilting outward in the longitudinal sectional view; the vertical surface refers to the inner wall of the pressing mechanism being perpendicular to the horizontal plane in the longitudinal sectional view.

[0021] Preferably, the angle between the inclined surface and the horizontal plane is 60-80°, for example, it can be 60°, 62°, 64°, 66°, 68°, 70°, 72°, 74°, 76°, 78°, or 80°, but is not limited to the listed values. Other unlisted values ​​within the range are also applicable.

[0022] Preferably, a medium channel is provided at each end of the valve body.

[0023] Preferably, a valve seat is provided at the connection between the two media channels.

[0024] Preferably, the intermediate channel is connected to both of the medium channels.

[0025] In this invention, the valve body has media channels at both ends for the inflow and outflow of fluids (such as liquids or gases). A valve seat is provided at the connection between the two media channels. The valve seat is a key component of the valve and is used to control the flow of fluid. The middle channel connects the two media channels, and the fluid flows from one media channel to the other through the middle channel.

[0026] The valve seat sealing ring installation tool provided by this utility model is used to install sealing rings. The operation process is as follows:

[0027] The mounting mechanism is placed on the second step to fix it in place. The pressing mechanism is placed in the circular through hole of the mounting mechanism. The pressing mechanism can slide in the circular through hole to achieve the action of applying downward pressure. Before pressing begins, the vertical surface contacts the outer side of the stainless steel wall. As the pressing mechanism descends to the first step, the inclined surface squeezes the stainless steel wall, making the stainless steel wall fit tightly against the sealing ring.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The valve seat sealing ring installation tool provided by this utility model squeezes the stainless steel wall through the inclined surface of the pressing mechanism, so that the stainless steel wall and the sealing ring are tightly fitted, ensuring that the sealing ring is evenly stressed in the installation groove, thereby significantly improving the sealing performance.

[0030] (2) The valve seat sealing ring installation tool provided by this utility model achieves sealing through deformation, which reduces the requirements for machining accuracy, simplifies the processing technology, reduces manufacturing costs, and improves production efficiency. Attached Figure Description

[0031] Figure 1 This is a longitudinal sectional view of the valve seat sealing ring installation tool in Embodiment 1 of this utility model;

[0032] Figure 2 This is a longitudinal sectional view of the valve body of the VCR diaphragm valve in Embodiment 1 of this utility model;

[0033] Figure 3 This is a longitudinal sectional view of the valve seat sealing ring installation tool and the VCR diaphragm valve after assembly in Embodiment 1 of this utility model;

[0034] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0035] Figure 5 for Figure 4 The structural diagram at point A after the sealing ring has been installed;

[0036] In the diagram: 1-Pressing mechanism; 2-Installation mechanism; 3-Pressure block; 4-Valve body; 5-Valve seat; 6-Intermediate channel; 7-Sealing ring; 8-Stainless steel wall; 9-Inclined surface; 10-Vertical surface; 11-First step; 12-Second step; 13-External thread mechanism; 14-Media channel. Detailed Implementation

[0037] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] Example 1

[0041] This embodiment provides a valve seat seal ring installation tool for a VCR diaphragm valve, such as... Figure 1 , Figure 2 and Figure 3As shown, the VCR diaphragm valve includes a valve body 4 and a valve seat 5. An intermediate channel 6 is formed between the valve body 4 and the valve seat 5. A sealing ring mounting groove is provided on the upper plane of the intermediate channel 6. A stainless steel wall 8 is provided on the outer side of the sealing ring mounting groove. The inner side of the stainless steel wall 8 contacts the outer circle of the sealing ring 7. Medium channels 14 are respectively provided at both ends of the valve body 4. A valve seat 5 is provided at the connection of the two medium channels 14. The intermediate channel 6 is connected to the two medium channels 14 respectively.

[0042] The valve seat sealing ring installation tool includes a pressing mechanism 1, an installation mechanism 2, and a pressure block 3. The pressing mechanism 1 is a cylindrical body. The bottom of the inner wall of the pressing mechanism 1 is provided with an inclined surface 9 and a vertical surface 10 connected sequentially from top to bottom. The vertical surface 10 contacts the outer side of the stainless steel wall 8. The bottom of the inclined surface 9 is inclined outward from the inner wall of the pressing mechanism 1. The angle between the inclined surface 9 and the horizontal plane is 70°. The outer side of the stainless steel wall 8 is provided with a first step 11. The first step 11 is used to install the pressing mechanism 1. When the pressing mechanism 1 descends to the first step 11, the inclined surface 9 presses the stainless steel wall 8, so that the stainless steel wall 8 is tightly attached to the sealing ring 7.

[0043] The installation mechanism 2 includes a square body containing a cavity, a circular through hole above the cavity, a pressing mechanism 1 disposed in the circular through hole, a second step 12 disposed on the upper surface of the valve body 4 for placing the installation mechanism 2, an external thread mechanism 13 disposed on the upper part of the valve body 4, the external thread mechanism 13 being located in the cavity of the square body, and a pressure block 3 disposed above the pressing mechanism 1.

[0044] Example 2

[0045] This embodiment provides a valve seat sealing ring installation tool for a VCR diaphragm valve. The only difference from Embodiment 1 is that the angle between the inclined surface 9 and the horizontal plane is 60°.

[0046] Example 3

[0047] This embodiment provides a valve seat sealing ring installation tool for a VCR diaphragm valve. The only difference from Embodiment 1 is that the angle between the inclined surface 9 and the horizontal plane is 80°.

[0048] Taking Example 1 as an example, the operation process of the valve seat sealing ring installation tool for the above-mentioned VCR diaphragm valve for installing the sealing ring is as follows:

[0049] The mounting mechanism 2 is placed on the second step 12 to fix it in place. The pressing mechanism 1 is placed in the circular through hole of the mounting mechanism 2. The pressing mechanism 1 can slide within the circular through hole to achieve the downward pressing action. Before pressing begins, the vertical surface 10 is brought into contact with the outer side of the stainless steel wall 8 (e.g., ...). Figure 4 As shown, when the pressing mechanism 1 descends to the first step 11, the inclined surface 9 presses against the stainless steel wall 8, causing the stainless steel wall 8 to fit tightly against the sealing ring 7 (as shown). Figure 5 (As shown).

[0050] In summary, the valve seat sealing ring installation tool provided by this utility model uses the inclined surface of the pressing mechanism to squeeze the stainless steel wall, making the stainless steel wall fit tightly with the sealing ring, ensuring that the sealing ring is evenly stressed in the installation groove, thereby significantly improving the sealing performance.

[0051] The applicant declares that the above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. A valve seat packing ring installation tool for a VCR diaphragm valve, characterized by, The VCR diaphragm valve includes a valve body and a valve seat, with an intermediate channel formed between the valve body and the valve seat, and a sealing ring mounting groove provided on the upper surface of the intermediate channel. The outer side of the sealing ring mounting groove is provided with a stainless steel wall, and the inner side of the stainless steel wall is in contact with the outer circle of the sealing ring. The valve seat sealing ring installation tool includes a pressing mechanism, which is a cylindrical body. The bottom of the inner wall of the pressing mechanism is provided with an inclined surface and a vertical surface connected sequentially from top to bottom. The vertical surface contacts the outer side of the stainless steel wall. The stainless steel wall is provided with a first step on the outside, and the first step is used to install the pressing mechanism; When the pressing mechanism descends to the first step, the inclined surface presses against the stainless steel wall, causing the stainless steel wall to fit tightly against the sealing ring.

2. The valve seat seal ring installation tool for a VCR diaphragm valve according to claim 1, wherein The valve seat seal ring installation tool also includes an installation mechanism; The mounting mechanism includes a square body containing a cavity; A circular through hole is provided above the cavity; The pressing mechanism is disposed within the circular through hole.

3. The valve seat seal ring installation tool for a VCR diaphragm valve according to claim 2, wherein The upper surface of the valve body is provided with a second step, which is used to place the mounting mechanism.

4. The valve seat sealing ring installation tool for the VCR diaphragm valve according to claim 2, characterized in that, The upper part of the valve body is provided with an external thread mechanism; The external thread mechanism is located inside the cavity of the square body.

5. The valve seat seal ring installation tool for VCR diaphragm valves according to claim 1, characterized in that, The valve seat seal ring installation tool also includes a pressure block; The pressure block is positioned above the pressing mechanism.

6. The valve seat seal ring installation tool for VCR diaphragm valves according to claim 1, characterized in that, The bottom of the inclined surface slopes outward from the inner wall of the pressing mechanism.

7. The valve seat seal ring installation tool for VCR diaphragm valves according to claim 6, characterized in that The angle between the inclined surface and the horizontal plane is 60-80°.

8. The valve seat seal ring installation tool for VCR diaphragm valves according to claim 1, characterized in that, Medium channels are provided at both ends of the valve body.

9. The valve seat seal ring installation tool for VCR diaphragm valves according to claim 8, characterized in that A valve seat is provided at the connection between the two media channels.

10. The valve seat seal ring installation tool for a VCR diaphragm valve according to claim 9, wherein The intermediate channel is connected to the two medium channels respectively.

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