Fluid control valve

Abstract

The utility model belongs to the field of valves, and provides a fluid control valve which comprises a valve body, an automatic switch module and a manual switch module, a water inlet and a water outlet are arranged on the valve body, and a first cavity directly communicated with the water inlet and a second cavity directly communicated with the water outlet are arranged in the valve body. Two different communicating passages capable of communicating the first cavity with the second cavity are arranged in the valve body, and the first communicating passage and the second communicating passage are formed; the automatic switch module is arranged on the first communication path and is used for automatically cutting off or opening the first communication path; and the manual switch module is arranged on the second communication path and is used for manually cutting off or opening the second communication path. According to the fluid control valve, the automatic switch module and the manual switch module are integrated on the valve body, and even if the automatic switch module breaks down, the valve can be opened or closed in a manual mode.

Description

Technical Field

[0001] This utility model relates to the field of valves, and more particularly to a fluid control valve. Background Technology

[0002] In fluid control valves, especially direct-acting fluid control valves, when energized, the solenoid coil generates electromagnetic force to lift the closing element from the valve seat, opening the valve; when de-energized, the electromagnetic force disappears, and the spring presses the closing element back onto the valve seat, closing the valve. In actual use, solenoid valves occasionally malfunction, causing the valve body to remain in a normally closed state. Therefore, there is an urgent need for a fluid control valve that can still control the opening or closing of the valve through other means even when the automatic control components malfunction. Utility Model Content

[0003] The main objective of this invention is to provide a fluid control valve to at least solve the above-mentioned technical problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides a fluid control valve, comprising: a valve body, an automatic switching module, and a manual switching module. The valve body is provided with an inlet and an outlet. The valve body is provided with a first cavity directly connected to the inlet and a second cavity directly connected to the outlet. The valve body is provided with two different connecting passages, a first connecting passage and a second connecting passage, capable of connecting the first cavity and the second cavity. The automatic switching module is disposed on the first connecting passage and is used to automatically cut off or open the first connecting passage. The manual switching module is disposed on the second connecting passage and is used to manually cut off or open the second connecting passage.

[0005] In one embodiment, the second communication path includes a third cavity, which connects the first cavity and the second cavity. The output terminal of the manual switch module is disposed at one end of the third cavity. When the output terminal of the manual switch module extends out and blocks the third cavity, the communication path between the first cavity and the second cavity through the third cavity is cut off.

[0006] In one embodiment, the second communication path includes a central chamber, an annular groove, and the third chamber. The annular groove is directly connected to the first chamber, the central chamber is directly connected to the second chamber, the third chamber is connected to the first chamber through the annular groove, and the third chamber is connected to the second chamber through the central chamber.

[0007] In one embodiment, the first connecting passage includes a central chamber and an annular groove. The annular groove is directly connected to the first chamber, and the central chamber is directly connected to the second chamber. When the automatic switch module is turned on, the annular groove is directly connected to the central chamber; when the automatic switch module is turned off, the annular groove is not directly connected to the central chamber.

[0008] In one embodiment, the automatic switching module includes a first driving member, the annular groove is disposed on a first side of the valve body, and a valve seat is also disposed on the first side. The first driving member is mounted on the valve seat, and the output end of the first driving member is disposed facing the opening of the annular groove. The first driving member can close or open the annular groove by driving its output end.

[0009] In one possible implementation, the first driving element is a solenoid valve.

[0010] In one embodiment, the annular groove is disposed on the first side of the valve body, one end of the third cavity is opened at the bottom of the annular groove, the other end of the third cavity is opened on the second side of the valve body, and the manual switch module is disposed on the second side of the valve body.

[0011] In one embodiment, the manual switch module includes a movable lever, a sealing portion disposed at the output end of the movable lever, and a handwheel disposed at the end of the movable lever.

[0012] In one embodiment, the side wall of the central chamber is provided with a through hole that directly communicates with the third chamber.

[0013] In one embodiment, the through hole is located at the bottom of the sidewall of the central chamber.

[0014] In one embodiment, a filter screen is provided inside the first cavity.

[0015] In one embodiment, a one-way valve is provided in the second cavity.

[0016] The fluid control valve of this invention integrates an automatic switch module and a manual switch module on the valve body. Even if the automatic switch module fails, the valve can still be opened or closed manually.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0018] The above and other objects, features, and advantages of the present invention will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated in the drawings by way of example and not limitation, in which:

[0019] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0020] Figure 1 This is a schematic diagram of the structure of a fluid control valve according to an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of the fluid control valve after the automatic switch module is turned on in one embodiment of this utility model;

[0022] Figure 3 This is a cross-sectional view of the fluid control valve after the automatic switch module is turned off in one embodiment of this utility model;

[0023] Figure 4 This is a cross-sectional view of the fluid control valve after the manual switch module is closed in one embodiment of this utility model;

[0024] Figure 5 This is a cross-sectional view of a fluid control valve in one embodiment of the present invention, wherein the second connecting passage is independent of the first connecting passage;

[0025] Figure 6 This is a cross-sectional view of a fluid control valve with a radial section through an annular groove, according to one embodiment of the present invention.

[0026] The above figures include the following reference numerals:

[0027] 1. Valve body; 11. Inlet; 12. Outlet; 13. First chamber; 14. Second chamber; 15. Central chamber; 16. Annular groove; 17. Third chamber; 18. Valve seat; 19. Through hole; 2. Automatic switch module; 21. First drive component; 3. Manual switch module; 31. Movable rod; 32. Sealing part; 33. Handwheel; 4. Filter screen; 5. Check valve; α. First side; β. Second side. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] It should be understood that, in the description of this utility model, when a component is referred to as being "set on," "attached to," or "installed on" another component, it can be directly set on the other component or there may be an intermediate component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component present.

[0030] When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be intermediate components present. Conversely, when a component is said to be "directly" connected to another component, there are no intermediate components.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Terms involving directionality, such as "first direction" and "second direction," refer to a straight line direction unless otherwise explicitly specified.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the description herein, "a plurality of" means two or more. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Reference Figure 1 and Figure 2This utility model provides a fluid control valve, which includes: a valve body 1, an automatic switching module 2, and a manual switching module 3. The automatic switching module 2 is located on a first side α of the valve body 1, and the manual switching module 3 is located on a second side β of the valve body 1. The valve body 1 has an inlet 11 and an outlet 12. Inside the valve body 1 are a first cavity 13 directly connected to the inlet 11 and a second cavity 14 directly connected to the outlet 12. Two different connecting passages are provided within the valve body 1 to connect the first cavity 13 and the second cavity 14: a first connecting passage and a second connecting passage. The first connecting passage is located near the first side α of the valve body 1, and the second connecting passage is located near the second side β of the valve body 1. The automatic switching module 2 is located on the first connecting passage and is used to automatically cut off or open the first connecting passage. The manual switching module 3 is located on the second connecting passage and is used to manually cut off or open the second connecting passage. With the above solution, even if the first connection passage is in a normally closed state due to a failure of the automatic switch module 2 during actual use, the second connection passage can be opened by the manual switch module 3 to ensure that the fluid control valve can be opened, thus ensuring the reliability of the fluid control valve in actual use.

[0034] Reference Figure 2 and Figure 3 In an embodiment of this utility model, the first connecting passage specifically includes a central chamber 15 and an annular groove 16. The annular groove 16 is directly connected to the first cavity 13, and the central chamber 15 is directly connected to the second cavity 14. When the automatic switch module 2 is open, the annular groove 16 and the central chamber 15 are directly connected. When the automatic switch module 2 is closed, the annular groove 16 and the central chamber 15 are not directly connected (they cannot be directly connected through the first connecting passage), but it is not excluded that the annular groove 16 and the central chamber 15 are connected in the second connecting passage.

[0035] Reference Figure 2 and Figure 3 In an embodiment of this utility model, the automatic switch module 2 includes a first drive member 21, an annular groove 16 is disposed on the first side α of the valve body 1, and a valve seat 18 is also disposed on the first side α. The first drive member 21 is mounted on the valve seat 18, and the output end of the first drive member 21 is disposed facing the opening of the annular groove 16. The first drive member 21 can close or open the annular groove 16 by driving its output end.

[0036] In the embodiments of this utility model, the first driving component 21 is a solenoid valve, but it is not excluded that it can be other driving components that can automatically close or open the annular groove 16.

[0037] Reference Figure 4 In an embodiment of this utility model, the manual switch module 3 includes a movable rod 31, a sealing part 32 disposed at the output end of the movable rod 31, and a handwheel 33 disposed at the end of the movable rod 31.

[0038] Reference Figure 5 In an embodiment of this utility model, the second connecting path and the first connecting path can be independent paths that do not interfere with each other. The second connecting path includes a third cavity 17, which directly connects the first cavity 13 and the second cavity 14. The output end of the manual switch module 3 is located at one end of the third cavity 17. When the output end of the manual switch module 3 extends out and blocks the third cavity 17, the connecting path between the first cavity 13 and the second cavity 14 through the third cavity 17 is cut off.

[0039] Reference Figures 3-5 In embodiments of this invention, the second connecting passage and the first connecting passage may share a portion of the passage to form two independently controllable passages. The second connecting passage may include a central chamber 15, an annular groove 16, and a third chamber 17, utilizing the central chamber 15 and annular groove 16 in the first connecting passage to shorten the internal space of the valve body 1 occupied by only the third chamber 17 in the previous section, making the valve body 1 structure more compact. In this embodiment, the third chamber 17 is connected to the first chamber 13 through the annular groove 16, and the third chamber 17 is connected to the second chamber 14 through the central chamber 15. Specifically, one end of the third chamber 17 is located at the bottom of the annular groove 16, and the other end of the third chamber 17 is located on the second side β of the valve body 1. A through hole 19 directly communicating with the third chamber 17 is provided on the side wall of the central chamber 15. The manual switch module 3 is located on the second side β of the valve body 1. By rotating the handwheel 33, the movable rod 31 can be driven to move along its own axial direction, thereby causing the sealing part 32 to open or close the through hole 19, so as to achieve the purpose of opening or closing the second connecting passage.

[0040] Preferably, the through hole 19 in the above scheme is located at the bottom of the side wall of the central chamber 15, which can shorten the travel of the movable rod 31 in the manual switch module 3, making the entire valve body 1 structure more compact.

[0041] Reference Figure 2 and Figure 3 In an embodiment of this utility model, a filter screen 4 is provided in the first cavity 13 of the valve body 1 to filter out impurities in the fluid that enters the valve body 1 through the inlet 11, so as to avoid affecting the sealing performance of the automatic switch module 2 and / or the manual switch module 3.

[0042] Reference Figure 2 and Figure 3 In an embodiment of this utility model, a one-way valve 5 is provided in the second cavity 14 of the valve body 1 to prevent backflow of fluid through the outlet 12.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fluid control valve, characterized in that, include: A valve body (1) is provided with an inlet (11) and an outlet (12). A first cavity (13) directly connected to the inlet (11) and a second cavity (14) directly connected to the outlet (12) are provided in the valve body (1). Two different connecting passages are provided in the valve body (1) that can connect the first cavity (13) and the second cavity (14). The first connecting passage and the second connecting passage are provided in the valve body (1). An automatic switch module (2) is disposed on the first connecting path and is used to automatically disconnect or open the first connecting path; The manual switch module (3) is located on the second communication path and is used to manually disconnect or open the second communication path.

2. The fluid control valve according to claim 1, characterized in that, The second communication path includes a third cavity (17), which connects the first cavity (13) and the second cavity (14). The output end of the manual switch module (3) is located at one end of the third cavity (17). When the output end of the manual switch module (3) extends out and blocks the third cavity (17), the communication path between the first cavity (13) and the second cavity (14) through the third cavity (17) is cut off.

3. The fluid control valve according to claim 2, characterized in that, The second communication pathway includes a central chamber (15), an annular groove (16), and the third chamber (17). The annular groove (16) is directly connected to the first chamber (13), the central chamber (15) is directly connected to the second chamber (14), the third chamber (17) is connected to the first chamber (13) through the annular groove (16), and the third chamber (17) is connected to the second chamber (14) through the central chamber (15).

4. The fluid control valve according to claim 1, characterized in that, The first connecting passage includes a central chamber (15) and an annular groove (16). The annular groove (16) is directly connected to the first cavity (13), and the central chamber (15) is directly connected to the second cavity (14). When the automatic switch module (2) is open, the annular groove (16) is directly connected to the central chamber (15); when the automatic switch module (2) is closed, the annular groove (16) is not directly connected to the central chamber (15).

5. The fluid control valve according to claim 4, characterized in that, The automatic switch module (2) includes a first drive member (21), the annular groove (16) is disposed on the first side (α) of the valve body (1), and a valve seat (18) is also disposed on the first side (α). The first drive member (21) is mounted on the valve seat (18), and the output end of the first drive member (21) is disposed facing the opening of the annular groove (16). The first drive member (21) can close or open the annular groove (16) by driving its output end.

6. The fluid control valve according to claim 5, characterized in that, The first driving component (21) is a solenoid valve.

7. The fluid control valve according to claim 3, characterized in that, The annular groove (16) is disposed on the first side (α) of the valve body (1), one end of the third cavity (17) is opened at the bottom of the annular groove (16), the other end of the third cavity (17) is opened on the second side (β) of the valve body (1), and the manual switch module (3) is disposed on the second side (β) of the valve body (1).

8. The fluid control valve according to claim 1, characterized in that, The manual switch module (3) includes a movable rod (31), a sealing part (32) disposed at the output end of the movable rod (31), and a handwheel (33) disposed at the end of the movable rod (31).

9. The fluid control valve according to claim 3, characterized in that, The central chamber (15) has a through hole (19) on its side wall that is directly connected to the third chamber (17).

10. The fluid control valve according to claim 9, characterized in that, The through hole (19) is located at the bottom of the side wall of the central chamber (15).

11. The fluid control valve according to any one of claims 1-10, characterized in that, A filter screen (4) is provided inside the first cavity (13).

12. The fluid control valve according to any one of claims 1-10, characterized in that, A one-way valve (5) is provided in the second chamber (14).

Images