Electric flow control valve

Abstract

The invention relates to the technical field of air compressors, and discloses an electric flow control valve which comprises a shell, a driving motor is fixedly connected to the interior of the shell, a worm is fixedly arranged at the output end of the driving motor, a worm gear is connected to the tooth end of the worm in a meshed mode, and a main shaft is fixedly connected to the interior of the worm gear; a butterfly valve is fixedly connected to the outer wall of the main shaft, a first gear is fixedly connected to the outer wall of the main shaft, a second gear is connected to the tooth end of the first gear in a meshed mode, a supporting column is fixedly connected to the interior of the second gear, a controller is electrically connected to the interior of the shell, and a control panel is electrically connected to the interior of the shell. Flow signals are transmitted to the controller through the control panel, the controller controls the driving motor to drive, the worm, the worm gear, the main shaft, the butterfly valve, the first gear and the second gear are matched, the opening and closing angle of the butterfly valve is adjusted to achieve flow control, and the effect that the flow is controlled through a simple and compact structure to receive position information of the butterfly valve is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressors, and specifically to an electric flow control valve. Background Art

[0002] An air compressor is a device that converts the mechanical energy of an electric motor or other power source into gas pressure energy. It increases the pressure of air by compressing it to produce high-pressure gas for various industrial uses. In order to precisely control the flow rate and integrate with an automated control system to achieve remote monitoring and automatic adjustment, and improve the automation level of the system, an electric flow control valve is thus used.

[0003] In an air compressor system, an electric flow control valve is a valve driven by an electric motor and is used to automatically control the flow rate of compressed air. This valve usually includes an electric actuator that can precisely adjust the opening degree of the valve, thereby controlling the air flow rate through the valve. In existing technologies, a conventional external motor drive is adopted, resulting in a complex overall structure, large volume, complex flow rate control, and the use of non-metallic packing or metal bellows to ensure sealing. During use, the sealing structure has a large frictional force and is prone to leakage. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an electric flow control valve, which solves the problems of the complex overall structure, large volume, complex flow rate control, and easy wear and leakage caused by using a conventional external motor drive in the past.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An electric flow control valve includes a housing. A drive motor is fixedly connected inside the housing. The output end of the drive motor is fixedly provided with a worm. The outer wall of the worm is rotatably connected inside the housing. The tooth end of the worm is meshed with a worm gear. A main shaft is fixedly connected inside the worm gear. The outer wall of the main shaft is rotatably connected inside the housing. A butterfly valve is fixedly connected to the outer wall of the main shaft. A first gear is fixedly connected to the outer wall of the main shaft. The tooth end of the first gear is meshed with a second gear. A support column is fixedly connected inside the second gear. The outer wall of the support column is rotatably connected inside the housing. A controller is electrically connected inside the housing. A control panel is electrically connected inside the housing. A connection assembly is provided on the outer wall of the housing.

[0006] By adopting the above technical solution, the controller receives the flow rate information of the control panel, and then can control the drive of the drive motor. The start of the drive motor can drive the worm to rotate, and the worm will drive the worm wheel and the main shaft to rotate simultaneously. Thus, the rotation angle of the butterfly valve is controlled by the rotation of the main shaft to achieve flow control of different sizes. At the same time, the first gear and the second gear are driven to rotate. The encoder on the support column calculates the number of turns for the complete opening and closing of the butterfly valve based on the number of rotation turns of the second gear and transmits it to the controller. Thereby, the start or stop of the drive motor can be better controlled, and the position of the butterfly valve can be accurately controlled.

[0007] Preferably, the connection assembly includes a connection block. The upper surface of the connection block is fixedly connected to the outer wall of the housing, the lower surface of the connection block is fixedly connected to a valve cover, the outer wall of the main shaft is rotatably connected inside the connection block, and the outer wall of the main shaft is rotatably connected inside the valve cover.

[0008] Preferably, the outer wall of the main shaft is rotatably connected to a valve body. The upper surface of the valve body is slidably connected to the lower surface of the valve cover. The outer wall of the butterfly valve is rotatably connected to the inner wall of the valve body, and a connecting pipe is slidably connected inside the valve body.

[0009] Preferably, a push rod is slidably connected inside the valve body. A slide plate is fixedly connected to the outer wall of the push rod. A first spring is fixedly connected to the outer wall of the slide plate inside the valve body. The outer wall of the slide plate is slidably connected inside the valve body, and a first rotating shaft is rotatably connected inside the slide plate.

[0010] Preferably, a rotating rod is fixedly connected to the outer wall of the first rotating shaft. The outer wall of the rotating rod is rotatably connected inside the valve body. A second rotating shaft is fixedly connected to the inside of the rotating rod, and a connecting piece is rotatably connected to the outer wall of the second rotating shaft.

[0011] Preferably, a clamping block is fixedly connected to the outer wall of the connecting piece. The outer wall of the clamping block is slidably connected inside the valve body and is also slidably connected inside the connecting pipe.

[0012] Preferably, a fixed column is fixedly connected inside the valve cover. A push piece is slidably connected inside the fixed column. A knob is fixedly connected to the upper surface of the push piece.

[0013] Preferably, a sliding column is fixedly connected to the lower surface of the push piece. The outer wall of the sliding column is slidably connected inside the valve cover and is also slidably connected inside the valve body. A clamping groove is provided inside the valve body.

[0014] Preferably, a second spring is slidably connected to the outer wall of the sliding column. One end of the second spring is fixedly connected to the bottom end of the push plate, and the other end of the second spring is slidably connected to the inside of the fixed column. A clamping column is fixedly connected to the inside of the sliding column. The outer wall of the clamping column is slidably connected to the inner wall of the clamping groove, and the outer wall of the clamping column is slidably connected to the inside of the fixed column.

[0015] A method of using an electric flow control valve, for the electric flow control valve described above, the method comprising the following steps: S1. Install and use the valve cover and the valve body. Through the quick installation design, the installation and maintenance time is saved; S2. Splice the valve body and the connecting pipe. By snapping the clamping block into the inside of the connecting pipe, the sealing performance during use is improved; S3. Input commands of different flow rates through the control panel, and the control panel transmits the command signal to the inside of the controller; S4. After receiving the command, the controller controls the starting time of the driving motor, thereby controlling the rotation angle of the butterfly valve; S5. Calculate the number of rotations of the second gear through the encoder on the support column to calculate the number of rotations when the butterfly valve is fully opened or closed, and transmit the signal to the controller. The controller controls the driving or shutting down of the driving motor.

[0016] The present invention provides an electric flow control valve. It has the following beneficial effects: 1. In the present invention, the flow signal is transmitted to the controller through the control panel. The controller controls the driving of the driving motor. Through the cooperation of the worm, the worm gear, the main shaft, the butterfly valve, the first gear and the second gear, the opening and closing angle of the butterfly valve is adjusted to achieve flow control, achieving the effect of flexibly controlling the flow rate through a simple and compact structure and facilitating receiving the position information of the butterfly valve. The control is simple.

[0017] 2. In the present invention, by pushing the push rod to drive the sliding plate to slide, and through the mutual cooperation between the first rotating shaft, the rotating rod, the second rotating shaft, the connecting piece, the clamping block and the first spring, the valve body and the connecting pipe are hermetically fixed, achieving better sealing during use, improving the docking stability and avoiding leakage.

[0018] 3. In the present invention, by rotating and pressing the knob, and through the cooperation between the fixed column, the push plate, the sliding column, the second spring and the clamping column, the clamping column slides into the valve body to limit and fix the valve cover and the valve body, achieving the effect of facilitating quick installation and use as well as disassembly and maintenance, and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the present invention; Figure 2 is a schematic cross-sectional view of the internal structure of the connecting pipe of the present invention; Figure 3 Schematic diagram of the partial structure of the butterfly valve of the present invention; Figure 4 Schematic cross-sectional view of the internal structure of the housing of the present invention; Figure 5 Schematic cross-sectional view of the internal structure of the valve body of the present invention; Figure 6 Schematic diagram of the partial structure of the valve cover of the present invention; Figure 7 Schematic cross-sectional view of the internal structure of the fixing column of the present invention; Figure 8 Schematic diagram of the process of the present invention.

[0020] Among them, 1. Housing; 2. Driving motor; 3. Worm; 4. Worm gear; 5. Main shaft; 6. Butterfly valve; 7. First gear; 8. Second gear; 9. Controller; 10. Control panel; 11. Connection assembly; 1101. Connection block; 1102. Valve cover; 12. Valve body; 13. Connecting pipe; 14. Push rod; 15. Slide plate; 16. First rotating shaft; 17. Rotating rod; 18. Second rotating shaft; 19. Connecting piece; 20. Clamping block; 21. First spring; 22. Card slot; 23. Fixing column; 24. Pushing piece; 25. Knob; 26. Slide column; 27. Second spring; 28. Clamping column; 29. Support column. Specific embodiments

[0021] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of 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.

[0022] Please refer to the attached Figure 1 - attached Figure 4 , the embodiment of the present invention provides an electric flow control valve, including a housing 1, a driving motor 2 is fixedly connected inside the housing 1, a worm 3 is fixedly arranged at the output end of the driving motor 2, the outer wall of the worm 3 is rotatably connected inside the housing 1, the tooth end of the worm 3 is meshed and connected with a worm gear 4, a main shaft 5 is fixedly connected inside the worm gear 4, the outer wall of the main shaft 5 is rotatably connected inside the housing 1, a butterfly valve 6 is fixedly connected to the outer wall of the main shaft 5, a first gear 7 is fixedly connected to the outer wall of the main shaft 5, the tooth end of the first gear 7 is meshed and connected with a second gear 8, a support column 29 is fixedly connected inside the second gear 8, the outer wall of the support column 29 is rotatably connected inside the housing 1, a controller 9 is electrically connected inside the housing 1, a control panel 10 is electrically connected inside the housing 1, and a connection assembly 11 is arranged on the outer wall of the housing 1; Specifically, the housing 1 plays a role in fixing the drive motor 2. Through the driving action of the drive motor 2, the worm 3 can rotate stably inside the housing 1. The housing 1 plays a role in supporting the worm 3. The worm 3 meshes with the worm gear 4, enabling the worm gear 4 to rotate through the rotation of the worm 3. The worm gear 4 plays a role in fixing the main shaft 5, enabling the main shaft 5 to rotate stably inside the housing 1 through the rotation of the worm gear 4. The main shaft 5 plays a role in fixing the butterfly valve 6, and then enabling the butterfly valve 6 to rotate through the rotation of the main shaft 5. By adjusting the opening and closing angle of the butterfly valve 6, the flow rate can be controlled. The worm 3 and worm gear 4 mechanism has a self-locking characteristic, which can prevent the butterfly valve 6 from moving accidentally when there is no drive from the drive motor 2. The main shaft 5 plays a role in supporting and fixing the first gear 7, enabling the first gear 7 to rotate through the rotation of the main shaft 5. The first gear 7 meshes with the second gear 8, and then enabling the second gear 8 to rotate synchronously with the rotation of the first gear 7. The first gear 7 and the second gear 8 play a role in calculating the number of rotation turns. By installing an encoder on the support column 29, the number of rotation turns of the second gear 8 can be calculated and stored through the rotation of the second gear 8. At the same time, the encoder can also transmit the number of turns when the butterfly valve 6 is fully opened and closed to the inside of the controller 9 for storage. When the encoder calculates the number of turns when the butterfly valve 6 is fully opened and closed, it will transmit the information to the controller 9. At this time, the controller 9 will send a signal to the drive motor 2 to control the driving or shutdown of the drive motor 2. Different flow rate requirements can be input through the control panel 10, and then the information will be transmitted to the inside of the controller 9. The controller 9 controls the driving time of the drive motor 2, and then adjusts the opening and closing angle of the butterfly valve 6 to flexibly adjust the flow rate.

[0023] Please refer to the attached Figure 1 - attached Figure 2 , the connection assembly 11 includes a connection block 1101. The upper surface of the connection block 1101 is fixedly connected to the outer wall of the housing 1. The lower surface of the connection block 1101 is fixedly connected with a valve cover 1102. The outer wall of the main shaft 5 is rotatably connected inside the connection block 1101, and the outer wall of the main shaft 5 is rotatably connected inside the valve cover 1102; Specifically, the housing 1 plays a role in supporting and fixing the connection block 1101. The connection block 1101 plays a role in connecting the valve cover 1102 and the connection block 1101. The connection block 1101 plays a role in supporting the main shaft 5, and then enabling the main shaft 5 to slide stably inside the connection block 1101.

[0024] Please refer to the attached Figure 3 - attached Figure 5 , the outer wall of the main shaft 5 is rotatably connected with a valve body 12. The upper surface of the valve body 12 is slidably connected to the lower surface of the valve cover 1102. The outer wall of the butterfly valve 6 is rotatably connected to the inner wall of the valve body 12. A connecting pipe 13 is slidably connected inside the valve body 12; Specifically, the main shaft 5 will rotate stably inside the valve body 12 synchronously. At the same time, the butterfly valve 6 will slide along the inner wall of the valve body 12. The valve body 12 plays a supporting role for the connecting pipe 13. The connection can be completed by inserting the connecting pipe 13 into the valve body 12.

[0025] Please refer to the attached Figure 3 - attached Figure 5 , a push rod 14 is slidably connected inside the valve body 12. A slide plate 15 is fixedly connected to the outer wall of the push rod 14. A first spring 21 is fixedly connected to the outer wall of the slide plate 15. The outer wall of the first spring 21 is fixedly connected inside the valve body 12. The outer wall of the slide plate 15 is slidably connected inside the valve body 12. A first rotating shaft 16 is rotatably connected inside the slide plate 15; Specifically, the valve body 12 plays a supporting role for the push rod 14, and the push rod 14 plays a fixing role for the slide plate 15. By pushing the push rod 14, the slide plate 15 can slide stably inside the valve body 12. The first spring 21 is arranged between the slide plate 15 and the valve body 12, so that the first spring 21 can be compressed by the sliding of the slide plate 15. The first spring 21 plays a role of rebounding. When the push rod 14 is no longer pushed, the slide plate 15 can be pushed to slide in the reverse direction. The slide plate 15 plays a supporting role for the first rotating shaft 16, so that the first rotating shaft 16 slides along with the sliding of the slide plate 15.

[0026] Please refer to the attached Figure 6 - attached Figure 7 , a rotating rod 17 is fixedly connected to the outer wall of the first rotating shaft 16. The outer wall of the rotating rod 17 is rotatably connected inside the valve body 12. A second rotating shaft 18 is fixedly connected inside the rotating rod 17. A connecting piece 19 is rotatably connected to the outer wall of the second rotating shaft 18; Specifically, the first rotating shaft 16 plays a role of connecting the rotating rod 17 and the slide plate 15, so that the rotating rod 17 can rotate stably inside the valve body 12 through the first rotating shaft 16. The second rotating shaft 18 plays a role of connecting the rotating rod 17 and the connecting piece 19, so that the connecting piece 19 slides through the second rotating shaft 18.

[0027] Please refer to the attached Figure 6 - attached Figure 7 , a clamping block 20 is fixedly connected to the outer wall of the connecting piece 19. The outer wall of the clamping block 20 is slidably connected inside the valve body 12. The outer wall of the clamping block 20 is slidably connected inside the connecting pipe 13; Specifically, the connecting piece 19 plays a role in fixing the clamping block 20, enabling the clamping block 20 to slide stably inside the valve body 12 through the sliding of the connecting piece 19. The clamping block 20 plays a role in limiting and fixing the connecting pipe 13. When the clamping block 20 slides into the inside of the connecting pipe 13, the position of the connecting pipe 13 inside the valve body 12 can be limited and fixed. Conversely, when the clamping block 20 slides out of the inside of the connecting pipe 13, the restriction on the connecting pipe 13 can be released. By inserting the clamping blocks 20 on both sides, the connecting pipe 13 and the valve body 12 can be sealed to prevent gas leakage during use.

[0028] Please refer to the appendix Figure 6 - appendix Figure 7 Inside the valve cover 1102, a fixing post 23 is fixedly connected. A push piece 24 is slidably connected inside the fixing post 23. On the upper surface of the push piece 24, a knob 25 is fixedly connected. Specifically, the valve cover 1102 plays a role in fixing the fixing post 23. The fixing post 23 plays a role in supporting the push piece 24. The push piece 24 plays a role in fixing the knob 25. By rotating the knob 25 by 90 degrees, the push piece 24 can be driven to rotate and slide inside the fixing post 23 by pushing and rotating the knob 25.

[0029] Please refer to the appendix Figure 6 - appendix Figure 7 On the lower surface of the push piece 24, a sliding post 26 is fixedly connected. The outer wall of the sliding post 26 is slidably connected inside the valve cover 1102 and also slidably connected inside the valve body 12. A clamping groove 22 is provided inside the valve body 12. Specifically, the push piece 24 plays a role in fixing the sliding post 26. By rotating and sliding the push piece 24, the sliding post 26 can be driven to rotate and slide. The sliding post 26 will simultaneously slide and rotate inside the valve cover 1102 and the valve body 12. By providing the clamping groove 22, the clamping post 28 can be limited and fixed.

[0030] Please refer to the appendix Figure 6 - appendix Figure 7 On the outer wall of the sliding post 26, a second spring 27 is slidably connected. One end of the second spring 27 is fixedly connected to the bottom end of the push piece 24, and the other end of the second spring 27 is slidably connected inside the fixing post 23. Inside the sliding post 26, a clamping post 28 is fixedly connected. The outer wall of the clamping post 28 is slidably connected to the inner wall of the clamping groove 22 and also slidably connected inside the fixing post 23. Specifically, the second spring 27 is arranged between the push piece 24 and the fixed column 23. It will be squeezed by the sliding of the push piece 24 and will rotate synchronously with the rotation of the push piece 24. The sliding column 26 plays a role in supporting and fixing the clamping column 28, enabling the clamping column 28 to rotate and slide synchronously with the rotation and sliding of the sliding column 26. The clamping groove 22 only allows the clamping column 28 to enter in its original state. When the clamping column 28 rotates 90 degrees, it will be stuck on the inner wall of the clamping groove 22, releasing the restriction on the push piece 24. The second spring 27 will push the push piece 24 to slide in the reverse direction through its own resilience, thereby enabling the clamping column 28 to slide up to the inner wall of the clamping groove 22 for limit fixation, and thus completing the limit fixation between the valve cover 1102 and the valve body 12.

[0031] The usage method of the electric flow control valve, for the described electric flow control valve, the method includes the following steps: S1. Install and use the valve cover 1102 and the valve body 12. Through the quick installation design, the installation and maintenance time is saved; S2. Assemble and use the valve body 12 and the connecting pipe 13. The sealing performance during use is improved by clamping the clamping block 20 into the inside of the connecting pipe 13; S3. Input commands of different flow rates through the control panel 10, and the control panel 10 transmits the command signal to the inside of the controller 9; S4. After receiving the command, the controller 9 controls the starting time of the driving motor 2, thereby controlling the rotation angle of the butterfly valve 6; S5. Calculate the number of rotations of the second gear 8 on the support column 29 to calculate the number of rotations when the butterfly valve 6 is fully opened or closed, and transmit the signal to the controller 9. The controller 9 controls the driving or shutdown of the driving motor 2; Specifically, when the control valve needs to be used, first assemble the valve cover 1102 and the valve body 12. Align the valve cover 1102 and the valve body 12. At this time, the sliding column 26 and the clamping column 28 will enter the inside of the valve body 12. Press and rotate the knob 25. The knob 25 will drive the push plate 24 and the sliding column 26 to rotate and slide simultaneously. The second spring 27 will also be compressed. The clamping column 28 rotates 90 degrees simultaneously. Release the push plate 24 and use the rebound of the second spring 27 to push the clamping column 28 in the reverse direction to be stuck on the inner wall of the clamping groove 22, and the assembly can be completed. Then install the valve body 12 and the connecting pipe 13. Push the push rod 14 to drive the sliding plate 15 to slide. The first spring 21 is compressed and through the cooperation between the first rotating shaft 16, the rotating rod 17 and the second rotating shaft 18, the clamping block 20 is retracted into the valve body 12 through the connecting piece 19. Insert the connecting pipe 13 into the valve body 12. At this time, the push rod 14 can be released, and the rebound of the first spring 21 can push the clamping block 20 to slide into the inside of the connecting pipe 13 for sealing and fixing, preventing leakage during use. Control the rotation angle of the butterfly valve 6 according to different flow requirements. Transmit the flow information to the inside of the controller 9 through the control panel 10. Control the drive of the drive motor 2 by the controller 9. Furthermore, the rotation of the worm 3 and the worm wheel 5 can drive the butterfly valve 6 to rotate inside the valve body 12 through the rotation of the main shaft 5, realizing the control and adjustment of the flow rate.

[0032] Working principle: When the control valve needs to be used, install the connecting block 1101 and the valve body 12. Align the connecting block 1101 and the valve body 12, and insert the sliding column 26 and the second spring 27 into the inside of the valve body 12. Press and rotate the knob 25 downward. The knob 25 will drive the push plate 24 to rotate and slide inside the fixed column 23, and compress the second spring 27 during this process. When the knob 25 slides and rotates, it will drive the sliding column 26 to slide and rotate. The sliding column 26 will drive the second spring 27 to rotate inside the valve body 12. Release the knob 25, and the rebound of the second spring 27 can push the push plate 24 to slide upward in the reverse direction, so that the second spring 27 can be stuck on the inner wall of the clamping groove 22, limiting and fixing the positions of the valve cover 1102 and the valve body 12, achieving the effect of being convenient for quick installation and use as well as disassembly and maintenance; The valve body 12 and the connecting pipe 13 are installed and used. During the use process, sealing treatment is required. Push the push rods 14 on both sides. The push rods 14 will drive the slide plate 15 and the first rotating shaft 16 to slide, and the first spring 21 will be compressed during the sliding process. When the first rotating shaft 16 slides, it will drive the rotating rod 17 to rotate. During the rotation of the rotating rod 17, it will drive the connecting piece 19 and the clamping block 20 to slide through the second rotating shaft 18, and completely retract the clamping block 20 into the interior of the valve body 12. At this time, the connecting pipe 13 can be inserted into the interior of the valve body 12. By releasing the pressure on the push rod 14, the first spring 21 can rebound to push the clamping block 20 to slide in the reverse direction, so that it slides into the interior of the connecting pipe 13, and the valve body 12 and the connecting pipe 13 are limited and fixed, achieving better sealing during the use process, improving the docking stability and avoiding leakage; When it is necessary to control the flow rate of the valve, commands can be input through the control panel 10, and the control information is transmitted to the interior of the controller 9. When the controller 9 receives the signal, it will control the drive of the drive motor 2. The drive motor 2 will drive the worm 3 to rotate. During the rotation of the worm 3, it will drive the worm gear 4 and the main shaft 5 to rotate. By the rotation of the main shaft 5, it will drive the butterfly valve 6 to rotate on the inner wall of the valve body 12. By the rotation of the butterfly valve 6, the outlet size can be controlled, thereby controlling the flow rate. When the main shaft 5 rotates, it will simultaneously drive the first gear 7 and the second gear 8 to rotate. The encoder will calculate the rotation number information of the second gear 8 and transmit it to the interior of the controller 9. When the butterfly valve 6 is fully opened or closed, after the controller 9 receives the rotation number information transmitted by the encoder, it will control the start or stop of the drive motor 2, and then limit and fix the position of the butterfly valve 6, achieving the effect of flexibly controlling the flow rate and facilitating receiving the position information of the control butterfly valve 6, and the control is simple.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Electric flow control valve, comprising a housing (1), characterized in that, A drive motor (2) is fixedly connected inside the housing (1). A worm (3) is fixedly arranged at the output end of the drive motor (2). The outer wall of the worm (3) is rotatably connected inside the housing (1). The tooth end of the worm (3) is meshed and connected with a worm wheel (4). A main shaft (5) is fixedly connected inside the worm wheel (4). The outer wall of the main shaft (5) is rotatably connected inside the housing (1). A butterfly valve (6) is fixedly connected to the outer wall of the main shaft (5). A first gear (7) is fixedly connected to the outer wall of the main shaft (5). The tooth end of the first gear (7) is meshed and connected with a second gear (8). A support column (29) is fixedly connected inside the second gear (8). The outer wall of the support column (29) is rotatably connected inside the housing (1). A controller (9) is electrically connected inside the housing (1). A control panel (10) is electrically connected inside the housing (1). A connection assembly (11) is arranged on the outer wall of the housing (1).

2. The electric flow control valve according to claim 1, wherein The connection assembly (11) includes a connection block (1101). The upper surface of the connection block (1101) is fixedly connected to the outer wall of the housing (1). A valve cover (1102) is fixedly connected to the lower surface of the connection block (1101). The outer wall of the main shaft (5) is rotatably connected inside the connection block (1101). The outer wall of the main shaft (5) is rotatably connected inside the valve cover (1102).

3. The electric flow control valve according to claim 1, wherein The outer wall of the main shaft (5) is rotatably connected with a valve body (12). The upper surface of the valve body (12) is slidably connected to the lower surface of the valve cover (1102). The outer wall of the butterfly valve (6) is rotatably connected to the inner wall of the valve body (12). A connecting pipe (13) is slidably connected inside the valve body (12).

4. The electric flow control valve according to claim 3, characterized in that, A push rod (14) is slidably connected inside the valve body (12). A slide plate (15) is fixedly connected to the outer wall of the push rod (14). A first spring (21) is fixedly connected to the outer wall of the slide plate (15) inside the valve body (12). The outer wall of the slide plate (15) is slidably connected inside the valve body (12). A first rotating shaft (16) is rotatably connected inside the slide plate (15).

5. The electric flow control valve according to claim 4, wherein, A rotating rod (17) is fixedly connected to the outer wall of the first rotating shaft (16). The outer wall of the rotating rod (17) is rotatably connected inside the valve body (12). A second rotating shaft (18) is fixedly connected inside the rotating rod (17). A connecting piece (19) is rotatably connected to the outer wall of the second rotating shaft (18).

6. The electric flow control valve according to claim 5, wherein A clamping block (20) is fixedly connected to the outer wall of the connecting piece (19). The outer wall of the clamping block (20) is slidably connected inside the valve body (12). The outer wall of the clamping block (20) is slidably connected inside the connecting pipe (13).

7. The electric flow control valve according to claim 2, wherein, A fixed column (23) is fixedly connected inside the valve cover (1102). A push piece (24) is slidably connected inside the fixed column (23). A knob (25) is fixedly connected to the upper surface of the push piece (24).

8. The electric flow control valve according to claim 7, characterized in that, The lower surface of the push piece (24) is fixedly connected with a sliding column (26). The outer wall of the sliding column (26) is slidably connected inside the valve cover (1102), and the outer wall of the sliding column (26) is slidably connected inside the valve body (12). A clamping groove (22) is formed inside the valve body (12).

9. The electric flow control valve according to claim 8, wherein A second spring (27) is slidably connected to the outer wall of the sliding column (26). One end of the second spring (27) is fixedly connected to the bottom end of the push piece (24), and the other end of the second spring (27) is slidably connected inside the fixed column (23). A clamping column (28) is fixedly connected inside the sliding column (26). The outer wall of the clamping column (28) is slidably connected to the inner wall of the clamping groove (22), and the outer wall of the clamping column (28) is slidably connected inside the fixed column (23).

10. A method for using an electric flow control valve, characterized in that, For the electric flow control valve according to any one of claims 1-9, the method comprises the following steps: S1. Install and use the valve cover (1102) and the valve body (12). Through the quick installation design, the installation and maintenance time is saved. S2. Assemble and use the valve body (12) and the connecting pipe (13). The sealing performance during use is improved by clamping the clamping block (20) into the inside of the connecting pipe (13). S3. Input commands of different flow rates through the control panel (10), and the control panel (10) transmits the command signal to the inside of the controller (9). S4. After receiving the command, the controller (9) controls the starting time of the driving motor (2), thereby controlling the rotation angle of the butterfly valve (6). S5. Calculate the number of rotations of the second gear (8) through the encoder on the support column (29) to calculate the number of rotations when the butterfly valve (6) is fully opened or closed, and transmit the signal to the controller (9). The controller (9) controls the driving or shutting down of the driving motor (2).

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