Replaceable regulating valve structure

Abstract

The utility model discloses a replaceable regulating valve structure which comprises a valve body, a dish plate arranged in the valve body and a valve rod arranged on the valve body and used for controlling the dish plate to be opened or closed, an installation disc is arranged on one side of the dish plate, a fixing assembly fixed with the dish plate is arranged on the installation disc, the installation disc is in a dish shape, and the valve rod is arranged on the valve body. An opening of the installation disc faces the butterfly plate, the edge of the installation disc is wrapped with an annular rubber sleeve, the outer surface of one side of the annular rubber sleeve abuts against the side wall of the side, close to the installation disc, of the butterfly plate, and when the butterfly plate is closed, the outer surface of the side, away from the axis of the installation disc, of the annular rubber sleeve abuts against the inner surface of the valve body. According to the regulating valve, the annular rubber sleeve can be replaced conveniently, the tedious operation of replacing the valve seat in the prior art is changed, and normal use of the regulating valve is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, and particularly relates to a replaceable regulating valve structure. Background Technique

[0002] A regulating valve refers to a valve used to regulate process parameters such as the flow rate, pressure, temperature, and liquid level of a medium in the field of industrial automation process control. According to the control signal in the automation system, the opening degree of the valve is automatically adjusted, thereby realizing the regulation of the flow rate, pressure, temperature, and liquid level of the medium.

[0003] A butterfly valve is a type of regulating valve. A butterfly valve generally includes a valve body, a valve seat, a disc, and a valve stem. The disc can be controlled to open or close through the valve stem. To overcome extrusion and scratching and ensure the sealing performance, the inner side of the valve seat is usually made of an elastic material such as rubber or polytetrafluoroethylene. When the disc is closed, the outer side of the disc and the inner side of the valve seat are in an interference fit. However, after long-term use, the disc frequently scratches the valve seat, which easily causes a large degree of wear on the inner side of the valve seat and the sealing performance gradually decreases. Therefore, the valve seat needs to be replaced. However, the valve seat is usually directly fixed to the valve body, resulting in a difficult replacement of the valve seat. Therefore, relevant designs need to be improved. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a replaceable regulating valve structure to solve the problems raised in the above background technique.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A replaceable regulating valve structure includes a valve body, a disc disposed in the valve body, and a valve stem disposed on the valve body and used to control the opening or closing of the disc. An installation plate is disposed on one side of the disc. A fixing component fixed to the disc is disposed on the installation plate. The installation plate is in the shape of a bowl dish, and the opening of the installation plate faces the disc. The edge of the installation plate is wrapped with an annular rubber sleeve. The outer surface of one side of the annular rubber sleeve abuts against the side wall of the disc close to the installation plate. When the disc is closed, the outer surface of the annular rubber sleeve away from the axis of the installation plate abuts against the inner surface of the valve body.

[0006] Further, the fixing component includes a threaded rod fixed to the inner surface of the installation plate and coaxially disposed with the installation plate, and a nut sleeved on the threaded rod and threadedly connected to the threaded rod. The nut is located on the side of the disc away from the installation plate.

[0007] Further, a rubber pad is sleeved on the threaded rod, and the rubber pad is located between the nut and the disc.

[0008] Further, an annular cushion block is sleeved on the threaded rod and is located on the side of the disc away from the nut. One end face of the annular cushion block is fixed to the disc, and the other end face of the annular cushion block abuts against the inner surface of the mounting disc.

[0009] Further, an annular magnet sleeved on the outer side of the threaded rod is fixed to the side wall of the disc away from the mounting disc. A protective cover magnetically attracted to the annular magnet is sleeved on the outer side of the threaded rod. Both the nut and the annular cushion block are located inside the protective cover.

[0010] Further, an annular convex edge is provided at the intersection of the outer wall of the protective cover and the side away from the disc.

[0011] Further, a first annular rib is integrally formed at the edge of the mounting disc close to the disc. An annular groove cooperating with the first annular rib is provided at a position on the side wall of the disc close to its edge.

[0012] Further, a second annular rib is integrally formed at a position on the inner wall of the mounting disc close to the first annular rib. A third annular rib is integrally formed at a position on the side wall of the mounting disc away from the disc close to the edge of the mounting disc.

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

[0014] 1. In the present application, when the disc is closed, the outer surface of the annular rubber sleeve away from the axis of the mounting disc abuts tightly against the inner surface of the valve body, ensuring the sealing state of the regulating valve when the disc is closed. When the regulating valve is used for a long time and the annular rubber sleeve is severely worn, the staff only needs to rotate the valve stem so that the annular rubber sleeve rotates with the disc to the open state. At this time, the staff adjusts the fixing component to release the fixation of the mounting disc. After removing the mounting disc, the annular rubber sleeve can be easily replaced, changing the cumbersome operation of replacing the valve seat in the traditional technology and ensuring the normal use of the regulating valve;

[0015] 2. In the present application, the second annular rib and the third annular rib cooperate to enhance the stability of the annular rubber sleeve during use and reduce the probability of the annular rubber sleeve falling off during use.. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 the structural schematic diagram for highlighting the open state of the disc;

[0018] Figure 3 is the structural schematic diagram of an embodiment of the present utility model for highlighting the fixing component;

[0019] Figure 4 is Figure 3 an enlarged schematic view of position A in

[0020] Figure 5 is Figure 3 an enlarged schematic view of position B in

[0021] In the figure: 1, valve body; 2, disc; 21, annular magnet; 22, annular groove; 3, valve stem; 4, mounting disc; 41, first annular rib; 42, second annular rib; 43, third annular rib; 5, fixing assembly; 51, threaded rod; 511, rubber pad; 52, nut; 6, annular rubber sleeve; 7, annular cushion block; 8, protective cover; 81, annular flange. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5 , the present invention provides a technical solution: a replaceable regulating valve structure, including a valve body 1 (in order to facilitate the connection of the valve body 1 to the pipeline it controls, flange plates are provided at both ends of the valve body 1. This part of the design belongs to conventional technology and will not be elaborated here), a disc 2 arranged in the valve body 1, and a valve stem 3 arranged on the valve body 1 and used to control the opening or closing of the disc 2. An installation disc 4 is arranged on one side of the disc 2, and a fixing assembly 5 fixed to the disc 2 is arranged on the installation disc 4. The installation disc 4 is in the shape of a bowl dish, the opening of the installation disc 4 faces the disc 2, and the edge of the installation disc 4 is wrapped with an annular rubber sleeve 6. The outer surface of one side of the annular rubber sleeve 6 abuts against the side wall of the disc 2 close to the installation disc 4. When the disc 2 is closed, the outer surface of the annular rubber sleeve 6 away from the axis of the installation disc 4 abuts against the inner surface of the valve body 1.

[0025] When the disc plate 2 is closed, the outer surface of the annular rubber sleeve 6 away from the axis of the mounting plate 4 is pressed against the inner surface of the valve body 1, ensuring the sealing state of the regulating valve when the disc plate 2 is closed. When the regulating valve is used for a long time and the annular rubber sleeve 6 is heavily worn, the staff only needs to rotate the valve stem 3 so that the annular rubber sleeve 6 rotates with the disc plate 2 to the open state. At this time, the staff adjusts the fixing component 5 to release the fixing of the mounting plate 4. After removing the mounting plate 4, the annular rubber sleeve 6 can be easily replaced, which changes the cumbersome operation of replacing the valve seat in the traditional technology and ensures the normal use of the regulating valve.

[0026] The fixing assembly 5 includes a threaded rod 51 fixed to the inner surface of the mounting plate 4 and coaxially arranged with the mounting plate 4, and a nut 52 sleeved on the threaded rod 51 and threadedly connected to the threaded rod 51. The nut 52 is located on the side of the disc plate 2 away from the mounting plate 4. After unscrewing the nut 52, the staff can remove the mounting plate 4 together with the threaded rod 51 from the valve body 1, thereby replacing the annular rubber sleeve 6. After replacing the annular rubber sleeve 6, reinstall the mounting plate 4 on the disc plate 2 and tighten the nut 52.

[0027] The threaded rod 51 is sleeved with a rubber pad 511, and the rubber pad 511 is located between the nut 52 and the disc plate 2. The provision of the rubber pad 511 enables a flexible connection between the nut 52 and the disc plate 2, thereby reducing wear between the two.

[0028] An annular pad 7 is sleeved on the threaded rod 51 and is located on the side of the disc plate 2 away from the nut 52. The end surface of one side of the annular pad 7 is fixed to the disc plate 2, and the end surface of the other side of the annular pad 7 abuts against the inner surface of the mounting plate 4. The provision of the annular pad 7 supports the disc plate 2 and the mounting plate 4, and enhances the stability of the mounting plate 4 during use to a certain extent.

[0029] An annular magnet 21 is fixed on the side wall of the disc plate 2 away from the mounting plate 4 and is sleeved on the outside of the threaded rod 51. A protective cover 8 is provided on the outside of the threaded rod 51 and is magnetically attracted to the annular magnet 21. The nut 52 and the annular gasket 7 are both located in the protective cover 8. The annular magnet 21 has a good adsorption effect on the protective cover 8, ensuring the stability of the protective cover 8. The protective cover 8 isolates the threaded rod 51 and the nut 52, reducing the probability of rusting of the threaded rod 51 and the nut 52 (in other embodiments, stainless steel threaded rods 51 and nuts 52 may also be used).

[0030] An annular convex edge 81 is provided at the intersection of the outer wall of the protective cover 8 and the side of the protective cover 8 away from the disc plate 2. The provision of the annular convex edge 81 provides a fulcrum point for the staff when disassembling the annular convex edge 81, thereby reducing the probability of slipping.

[0031] One side of the installation disk 4 close to the disk plate 2 is integrally formed with a first annular rib 41, and an annular groove 22 cooperating with the first annular rib 41 is arranged at a position on the side wall of the disk plate 2 close to its edge. The cooperation between the first annular rib 41 and the annular groove 22 enhances the sealing performance between the installation disk 4 and the disk plate 2, which is beneficial to improving the sealing property of the regulating valve.

[0032] A second annular rib 42 is integrally formed at a position on the inner wall of the installation disk 4 close to the first annular rib 41, and a third annular rib 43 is integrally formed at a position on the side wall of the installation disk 4 away from the disk plate 2 close to the edge of the installation disk 4. The second annular rib 42 and the third annular rib 43 cooperate to enhance the stability of the annular rubber sleeve 6 during use and reduce the probability of the annular rubber sleeve 6 falling off during use.

[0033] The working principle of a replaceable regulating valve structure in this embodiment is as follows: When the disk plate 2 is closed, the outer surface of the annular rubber sleeve 6 on the side away from the axis of the installation disk 4 abuts against the inner surface of the valve body 1, ensuring the sealing state of the regulating valve when the disk plate 2 is closed. When the regulating valve is used for a long time and the annular rubber sleeve 6 is severely worn, the staff only needs to rotate the valve stem 3 so that the annular rubber sleeve 6 rotates to the open state together with the disk plate 2. At this time, the staff adjusts the fixing component 5 to release the fixation of the installation disk 4. After removing the installation disk 4, the annular rubber sleeve 6 can be easily replaced, changing the cumbersome operation of replacing the valve seat in the traditional technology and ensuring the normal use of the regulating valve.

[0034] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A replaceable regulating valve structure, comprising a valve body (1), a disc (2) disposed within the valve body (1), and a valve stem (3) disposed on the valve body (1) and used to control the opening or closing of the disc (2), characterized in that: On one side of the disc plate (2), there is an installation disc (4). On the installation disc (4), there is a fixing component (5) fixed to the disc plate (2). The installation disc (4) is in the shape of a bowl. The opening of the installation disc (4) faces the disc plate (2). The edge of the installation disc (4) is wrapped with an annular rubber sleeve (6). The outer surface of one side of the annular rubber sleeve (6) is in tight contact with the side wall of the disc plate (2) close to the installation disc (4). When the disc plate (2) is closed, the outer surface of the annular rubber sleeve (6) on the side away from the axis of the installation disc (4) is in tight contact with the inner surface of the valve body (1).

2. The replaceable regulating valve structure according to claim 1, characterized in that: The fixing component (5) includes a threaded rod (51) fixed to the inner surface of the installation disc (4) and coaxially arranged with the installation disc (4), and a nut (52) sleeved on the threaded rod (51) and threadedly connected to the threaded rod (51). The nut (52) is located on the side of the disc plate (2) away from the installation disc (4).

3. The replaceable regulating valve structure according to claim 2, characterized in that: A rubber pad (511) is sleeved on the threaded rod (51). The rubber pad (511) is located between the nut (52) and the disc plate (2).

4. The replaceable regulating valve structure according to claim 3, characterized in that: An annular cushion block (7) is sleeved on the threaded rod (51) on the side of the disc plate (2) away from the nut (52). One end face of one side of the annular cushion block (7) is fixed to the disc plate (2), and the other end face of the annular cushion block (7) is in contact with the inner surface of the installation disc (4).

5. The replaceable regulating valve structure according to claim 4, characterized in that: An annular magnet (21) sleeved on the outer side of the threaded rod (51) is fixed on the side wall of the disc plate (2) away from the installation disc (4). A protective cover (8) magnetically attracted to the annular magnet (21) is sleeved outside the threaded rod (51). Both the nut (52) and the annular cushion block (7) are located inside the protective cover (8).

6. The replaceable regulating valve structure according to claim 5, characterized in that: An annular convex edge (81) is provided at the intersection of the outer wall of the protective cover (8) and the side of the protective cover (8) away from the disc plate (2).

7. The replaceable regulating valve structure according to claim 5, characterized in that: A first annular rib (41) is integrally formed at the edge of the installation disc (4) close to the disc plate (2). An annular groove (22) cooperating with the first annular rib (41) is provided at the position of the side wall of the disc plate (2) close to its edge.

8. A replaceable regulating valve structure according to claim 7, characterized in that: A second annular rib (42) is integrally formed at the position of the inner wall of the installation disc (4) close to the first annular rib (41). A third annular rib (43) is integrally formed at the position of the side wall of the installation disc (4) away from the disc plate (2) close to the edge of the installation disc (4).

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