Self-operated house-service electric control valve

Abstract

The utility model relates to the technical field of electric control valves, in particular to a self-operated house-service electric control valve. The device comprises a fixing frame, a motor is fixedly connected to the top of the fixing frame, a threaded rod is rotatably connected to the bottom of the motor, a driving plate is rotatably connected to the surface of the threaded rod of the claim book, a plurality of driving grooves and threaded holes are formed in the surface of the driving plate, and driving rods are movably connected to inner cavities of the driving grooves. The surface of the driving rod is movably connected with a spring, the bottom of the threaded rod is fixedly connected with a self-operated executing mechanism, the bottom of the driving rod is fixedly connected with a pressure adjusting plate, the top of the spring is fixedly connected with the driving plate, and the bottom of the spring is fixedly connected with the top of the self-operated executing mechanism. And the top of the self-operated actuating mechanism is movably connected with the driving rod. According to the utility model, the starting pressure set point of the self-operated regulating valve is remotely controlled through the motor, so that the problem that the pressure set point is manually set is solved.

Description

Technical Field

[0001] This utility model relates to the field of electric regulating valve technology, specifically to a self-operated inlet electric regulating valve. Background Technology

[0002] The self-operated electric regulating valve is an automatic control valve that does not require an external power or air source to drive it. Instead, it relies on the pressure or temperature change of the medium itself to open or close the valve. This type of valve is widely used in flow regulation in heating, air conditioning, refrigeration, water treatment and other systems, and is particularly suitable for occasions that require precise control of fluid flow or pressure.

[0003] In the prior art, for example, Chinese Patent Publication No. CN207621401U discloses a self-operated electric regulating valve for household inlet, which includes a valve body, a valve seat, a valve disc, a valve stem, a differential pressure valve stem, and a valve cover; an annular third protrusion is formed on the outer wall of the valve body, and a diaphragm cover is provided on the third protrusion; a flange is formed on the outer circumference of the differential pressure valve stem, and the differential pressure valve stem passes through the diaphragm and the diaphragm gasket in sequence; a cylindrical component is also formed on the inner wall of the valve body, and the cylindrical chamber of the cylindrical component is connected to the water inlet of the valve body; a through hole is opened on the side wall of the cylindrical component, and a protrusion corresponding to the through hole is formed on the differential pressure valve stem, which can realize the electric adjustment of the valve body opening. Moreover, the valve body flow regulating element adopts an angular stroke structure, which speeds up the adjustment time, ensures the dynamic response speed of the adjustment process, and thus improves the control accuracy.

[0004] While existing technologies can adjust the dynamic response speed of the process, the starting pressure setpoint of self-operated pressure regulating valves is manually set, which is not conducive to remote adjustment and control. Therefore, we propose a self-operated inlet electric regulating valve. Utility Model Content

[0005] The purpose of this utility model is to provide a self-operated electric regulating valve for household use, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a self-operated electric regulating valve for home access, comprising a fixed frame, a motor fixedly connected to the top of the fixed frame, a threaded rod rotatably connected to the bottom of the motor, a drive plate rotatably connected to the surface of the threaded rod, a plurality of drive grooves and threaded holes being formed on the surface of the drive plate, a drive rod being movably connected to the inner cavity of the drive grooves, a spring being movably connected to the surface of the drive rod, a self-operated actuator fixedly connected to the bottom of the threaded rod, a pressure regulating plate fixedly connected to the bottom of the drive rod, a fixed connection between the top of the spring and the drive plate, a fixed connection between the bottom of the spring and the top of the self-operated actuator, and a movable connection between the top of the self-operated actuator and the drive rod.

[0007] As a further improvement to this technical solution, the internal cavity of the self-operated actuator is provided with a pneumatic chamber, and the internal cavity of the pneumatic chamber is movably connected to the pressure regulating plate.

[0008] As a further improvement to this technical solution, a connecting frame is fixedly connected to the bottom of the self-operated actuator, a differential pressure valve stem is fixedly connected to the top of the inner cavity of the connecting frame, an actuator block is movably connected to the surface of the differential pressure valve stem, and a sliding block is fixedly connected to the side of the actuator block.

[0009] As a further improvement to this technical solution, a sliding groove is provided on the inner side of the connecting frame, and a pressure gauge is provided on the inner surface of the connecting frame away from the sliding groove. The sliding block is movably connected to the sliding groove.

[0010] As a further improvement to this technical solution, a connecting pipe is fixedly connected to the bottom of the connecting frame, and a self-regulating valve is fixedly connected to the bottom of the connecting pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This self-operated electric regulating valve uses a remotely controlled motor to drive a threaded rod, which in turn moves the drive plate and drive rod up and down. This, in turn, changes the air pressure between the pressure plates via a pressure regulating plate, ultimately achieving remote control of the self-operated regulating valve's starting pressure setpoint. This solves the problem that the starting pressure setpoint in existing technologies is manually set, improving the system's flexibility and convenience. The pressure regulating plate adjusts the pressure by changing the air pressure between the pressure plates, and the self-operated regulating valve adjusts its opening according to the air pressure changes, thereby achieving precise control of fluid flow or pressure. This improves the system's control accuracy and ensures stable system operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the air pressure chamber assembly structure of this utility model;

[0015] Figure 3 For the present utility model Figure 1 A schematic diagram of the component structure at point A;

[0016] Figure 4 This is a schematic diagram of the sliding groove assembly structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the drive board assembly structure of this utility model.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. Fixed frame; 11. Motor; 12. Threaded rod; 13. Spring; 14. Drive rod; 15. Drive plate; 16. Pressure regulating plate; 17. Drive groove; 18. Threaded hole; 2. Self-operated actuator; 21. Pneumatic chamber; 3. Connecting frame; 31. Sliding groove; 32. Sliding block; 33. Differential pressure valve stem; 34. Actuator block; 35. Pressure gauge; 4. Self-operated regulating valve; 41. Connecting pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0023] Please see Figures 1-5As shown, this utility model provides a self-operated electric regulating valve for home access, including a fixed frame 1. A motor 11 is fixedly connected to the top of the fixed frame 1, and a threaded rod 12 is rotatably connected to the bottom of the motor 11. A drive plate 15 is rotatably connected to the surface of the threaded rod 12. The surface of the drive plate 15 has several drive grooves 17 and threaded holes 18. A drive rod 14 is movably connected to the inner cavity of the drive grooves 17. A spring 13 is movably connected to the surface of the drive rod 14. A self-operated actuator 2 is fixedly connected to the bottom of the threaded rod 12, and a pressure regulating plate 16 is fixedly connected to the bottom of the drive rod 14. The top of the spring 13 is connected to the drive plate 15. For fixed connection, the bottom of spring 13 is fixedly connected to the top of self-operated actuator 2, and the top of self-operated actuator 2 is movably connected to drive rod 14. Spring 13 is movably connected to the surface of drive rod 14. Spring 13 plays the role of buffering and resetting. By remotely controlling motor 11 to drive threaded rod 12, drive plate 15 and drive rod 14 to move up and down. Then, by changing air pressure in air pressure chamber 21 through pressure regulating plate 16, the precise control of fluid flow or pressure is achieved through self-operated actuator 2 and self-operated regulating valve 4, and remote control of the start pressure set point of self-operated regulating valve 4 is achieved.

[0024] Please see Figure 2 As shown, in this embodiment, the inner cavity of the self-operated actuator 2 is provided with a pressure chamber 21. The inner cavity of the pressure chamber 21 is movably connected to the pressure regulating plate 16. The pressure regulating plate 16 adjusts the pressure by changing the air pressure in the pressure chamber 21.

[0025] Please see Figure 3 and Figure 4 As shown, further, a connecting frame 3 is fixedly connected to the bottom of the self-operated actuator 2, a differential pressure valve stem 33 is fixedly connected to the top of the inner cavity of the connecting frame 3, an actuator block 34 is movably connected to the surface of the differential pressure valve stem 33, and a sliding block 32 is fixedly connected to the side of the actuator block 34. The sliding block 32 slides up and down in the sliding groove 31 of the connecting frame 3 to ensure the smooth movement of the actuator block 34.

[0026] Please see Figure 4 and Figure 5 As shown, specifically, a sliding groove 31 is provided on the inner side of the connecting frame 3, and a pressure gauge 35 is provided on the inner surface of the connecting frame 3 away from the sliding groove 31. The sliding block 32 is movably connected to the sliding groove 31. The pressure gauge 35 is provided on the inner surface of the connecting frame 3 away from the sliding groove 31 to monitor the pressure change of the pressure chamber 21 in real time. The reading of the pressure gauge 35 can be used for remote monitoring and fault diagnosis to ensure the normal operation of the system.

[0027] Please see Figure 4As shown, in addition, a connecting pipe 41 is fixedly connected to the bottom of the connecting frame 3, and a self-regulating valve 4 is fixedly connected to the bottom of the connecting pipe 41. The self-regulating valve 4 adjusts the valve opening according to the air pressure change in the air pressure chamber 21, thereby achieving precise control of fluid flow or pressure.

[0028] In summary, the working principle of this solution is as follows:

[0029] After the motor 11 starts, it drives the threaded rod 12 to rotate through the rotating connection at the bottom. The rotation of the threaded rod 12 causes the drive plate 15 to move up and down along the threaded hole 18. The up and down movement of the drive plate 15 drives the drive rod 14 to move up and down through the drive groove 17. As the drive rod 14 moves up and down, the pressure regulating plate 16 also moves accordingly. The pressure regulating plate 16 adjusts the pressure by changing the air pressure in the air pressure chamber 21. The change in air pressure in the air pressure chamber 21 will push the actuator 34 to move up and down along the differential pressure valve stem 33. The self-operated regulating valve 4 adjusts the valve opening according to the change in air pressure in the air pressure chamber 21.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-operated electric regulating valve for household use, comprising a fixing frame (1), characterized in that: A motor (11) is fixedly connected to the top of the fixed frame (1), and a threaded rod (12) is rotatably connected to the bottom of the motor (11). A drive plate (15) is rotatably connected to the surface of the threaded rod (12). The surface of the drive plate (15) is provided with several drive grooves (17) and threaded holes (18). A drive rod (14) is movably connected to the inner cavity of the drive groove (17). A spring (13) is movably connected to the surface of the drive rod (14). A self-operated actuator (2) is fixedly connected to the bottom of the threaded rod (12), and a pressure regulating plate (16) is fixedly connected to the bottom of the drive rod (14). The top of the spring (13) is fixedly connected to the drive plate (15), the bottom of the spring (13) is fixedly connected to the top of the self-operated actuator (2), and the top of the self-operated actuator (2) is movably connected to the drive rod (14).

2. The self-operated electric regulating valve with inlet valve according to claim 1, characterized in that: The self-operated actuator (2) has an internal pressure chamber (21) in which: The inner cavity of the air pressure chamber (21) is movably connected to the pressure regulating plate (16).

3. The self-operated electric regulating valve with inlet valve according to claim 2, characterized in that: The bottom of the self-operated actuator (2) is fixedly connected to a connecting frame (3), the top of the inner cavity of the connecting frame (3) is fixedly connected to a differential pressure valve stem (33), the surface of the differential pressure valve stem (33) is movably connected to an actuator block (34), and the side of the actuator block (34) is fixedly connected to a sliding block (32).

4. The self-operated electric regulating valve for household entry according to claim 3, characterized in that: The inner cavity of the connecting frame (3) is provided with a sliding groove (31), and a pressure gauge (35) is provided on the inner cavity surface of the connecting frame (3) away from the sliding groove (31), wherein: The sliding block (32) and the sliding groove (31) are movably connected.

5. The self-operated electric regulating valve with inlet valve according to claim 4, characterized in that: The bottom of the connecting frame (3) is fixedly connected to a connecting pipe (41), and the bottom of the connecting pipe (41) is fixedly connected to a self-regulating valve (4).

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