High-precision flow regulation control valve

Abstract

The utility model relates to a high-precision flow regulation control valve which comprises a shell and a valve element, the valve element is cylindrical, a shaft hole is formed along the axis of the valve element, the shaft hole forms an opening in one end face of the valve element, a regulation groove is formed in the circumferential face of the valve element, the caliber of the regulation groove is gradually reduced from one end to the other end, and the regulation groove is communicated with the shaft hole. A water inlet corresponding to the adjusting groove is formed in the shell; a water outlet corresponding to the shaft hole is formed in the shell; the other end face of the valve element is fixedly connected with a rotating shaft, and the rotating shaft is connected with a motor. A flow meter is mounted at the water outlet; and the flow meter and the motor are jointly connected with the control panel through signals. Flow is adjusted through the columnar valve element with the adjusting groove with the gradually-changed caliber, and the caliber of a medium entering the valve element is changed by enabling different parts on the adjusting groove to be opposite to the water inlet, so that the flow of the medium is adjusted and limited. Rotation of the valve element is fed back in real time according to data of the flow meter, and therefore accuracy and timeliness of flow can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of regulating valves, and in particular to a high-precision flow regulating control valve. Background Technology

[0002] A flow regulating valve, also known as a flow control valve, automatically balances the flow rate based on the pressure of the medium on the valve body, maintaining a constant set flow rate. A common type is the ball valve, where the valve core rotates in a spherical shape within the valve body. Inlet and outlet ports are located on opposite collinear sides of the valve body. The ball valve has a pressure relief channel; when the flow pressure increases, the medium is diverted into the pressure relief channel, reducing the outlet flow and thus regulating and stabilizing the flow. However, leakage can easily occur between the pressure relief channel and the main flow channel, causing the valve's regulating function to fail or its accuracy to decrease. This invention addresses this issue. Utility Model Content

[0003] The purpose of this application is to provide a high-precision flow regulation control valve, which aims to solve the problems existing in the prior art.

[0004] This application provides a high-precision flow regulation control valve, including a housing and a valve core. The valve core is cylindrical and has a shaft hole along its axis. The shaft hole forms an opening on one end face of the valve core. An adjustment groove is formed on the circumferential surface of the valve core, and the diameter of the adjustment groove gradually decreases from one end to the other. The adjustment groove communicates with the shaft hole. A water inlet is provided on the housing corresponding to the adjustment groove, and a water outlet is provided on the housing corresponding to the shaft hole. A rotating shaft is fixedly connected to the other end face of the valve core, and the rotating shaft is connected to a motor. A flow meter is installed at the water outlet, and the flow meter and the motor are connected to a control board via a signal.

[0005] Furthermore, the rotating shaft is connected to the valve core via a key, and a connector is fixedly connected to the end of the valve core. The connector has a keyway, and the rotating shaft is installed in the keyway via a key.

[0006] Furthermore, a housing neck is fixed on the housing corresponding to the rotating shaft, a seal is provided between the housing neck and the rotating shaft, a first bearing is provided between the rotating shaft and the housing, and a second bearing is provided between the rotating shaft and the housing neck.

[0007] Furthermore, the shaft hole forms an opening on one side of the water outlet, and the other side of the shaft hole is connected to the regulating groove, with the shaft hole perpendicular to the regulating groove.

[0008] Furthermore, the regulating groove and the water inlet are on the same straight line, and the shaft hole and the water outlet are on the same straight line.

[0009] Furthermore, a third bearing is provided between the valve core end face on the water outlet side and the housing.

[0010] The beneficial effects of this invention are as follows: This invention regulates the flow rate through a columnar valve core with a gradually changing diameter adjustment groove. By adjusting different parts of the groove relative to the inlet, the diameter of the medium entering the valve core is changed, thereby regulating and limiting the flow rate. The rotation of the valve core is fed back in real time based on the flow meter data, thus ensuring the accuracy and timeliness of the flow rate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the valve core of this utility model.

[0013] In the picture:

[0014] 1. Housing; 2. Valve core; 3. Shaft hole; 4. Adjustment groove; 5. Inlet; 6. Outlet; 7. Shaft; 8. Connector; 9. Keyway; 10. Housing neck; 11. Seal; 12. First bearing; 13. Second bearing; 14. Third bearing; 15. Motor. Detailed Implementation

[0015] 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.

[0016] like Figure 1 and Figure 2 The high-precision flow regulation control valve shown includes a housing 1 and a valve core 2. The valve core 2 is a horizontally oriented cylinder, and the housing 1 completely covers the outside of the valve core 2, with a clearance fit between the housing 1 and the valve core 2 on their circumferential surfaces. A shaft hole 3 is formed along the axis of the valve core 2, and an adjustment groove 4 is formed on the circumferential surface of the valve core 2, with the diameter of the adjustment groove 4 gradually decreasing from one end to the other. The shaft hole 3 forms an opening on the outlet 6 side end face of the valve core 2, and the other side of the shaft hole 3 communicates with the adjustment groove 4, with the shaft hole 3 perpendicular to the adjustment groove 4.

[0017] The housing 1 has an inlet 5 corresponding to the regulating groove 4, with the regulating groove 4 and the inlet 5 on the same straight line. The diameter of the inlet 5 is larger than the diameter of any position on the regulating groove 4, ensuring that water can only enter the shaft hole 3 through the regulating groove 4. The housing 1 also has an outlet 6 corresponding to the shaft hole 3, with the shaft hole 3 and the outlet 6 on the same straight line. Thus, water enters the valve through the inlet 5, passes through the regulating groove 4 into the shaft hole 3, and finally exits the valve through the outlet 6. Because the regulating grooves 4 have varying diameters, when the valve core 2 rotates a certain angle within the housing 1, the diameter of the regulating groove 4 corresponding to the inlet 5 increases or decreases, thereby regulating the incoming water flow rate.

[0018] A rotating shaft 7 is fixedly connected to the end face of the valve core 2 opposite to the outlet 6. The rotating shaft 7 is connected to the valve core 2 via a key. A connector 8 is fixedly connected to the end of the valve core 2. A keyway 9 is provided on the connector 8. The rotating shaft 7 is installed in the keyway 9 via a key, so that the rotating shaft 7 can drive the valve core 2 to rotate.

[0019] An elongated neck 10 is fixed to the housing 1 corresponding to the rotating shaft 7. A seal 11 is provided between the neck 10 and the rotating shaft 7. A first bearing 12 is provided between the rotating shaft 7 and the housing 1, and a second bearing 13 is provided between the rotating shaft 7 and the neck 10. The two bearings are located at opposite ends of the rotating shaft 7 to ensure stable rotation of the rotating shaft 7. A third bearing 14 is provided between the valve core 2's outlet side end face and the housing 1. The third bearing 14 is preferably a plane bearing, which provides rotational support for the valve core 2 on the outlet 6 side.

[0020] The rotating shaft 7 is connected to the motor 15, which drives the shaft 7 to rotate. A flow meter is installed at the outlet 6 to measure the water flow rate. The flow meter and the motor 15 are connected to the control board via a signal. The flow meter monitors the water flow rate. When the flow rate increases or decreases, the flow meter sends a flow rate change signal to the control board. The control board then sends a control signal to the motor 15, controlling it to rotate forward or backward to decrease or increase the diameter of the regulating tank 4 facing the inlet 5, thereby achieving precise flow rate regulation.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects.

Claims

1. A high-precision flow regulating control valve characterized by, The utility model provides a valve, including shell and valve core, the valve core is cylindrical, is equipped with the axle hole along the axis of valve core, the axle hole forms the opening in the one end surface of valve core, the circumference of valve core is equipped with the adjusting groove, the caliber of adjusting groove gradually reduces from one end to the other end, and adjusting groove communicates with axle hole, the shell is equipped with the water inlet on the corresponding adjusting groove, and the shell is equipped with the water outlet on the corresponding axle hole, the other end surface of valve core is fixedly connected with the rotating shaft, and the rotating shaft is connected with motor, the water outlet is installed with flowmeter, and flowmeter is connected with motor through signal and control panel jointly.

2. The high precision flow regulating control valve of claim 1, wherein, The rotating shaft is connected with the valve core through the key, and the end of the valve core is fixedly connected with the connecting head, the connecting head is provided with the keyway, and the rotating shaft is installed in the keyway through the key.

3. The high precision flow regulating control valve of claim 2, wherein, The shell neck is fixed on the shell corresponding to the rotating shaft, and a seal is arranged between the shell neck and the rotating shaft.

4. The high precision flow regulating control valve of claim 1, wherein, The axle hole forms an opening on the water outlet side, and the other side of the axle hole communicates with the adjusting groove.

5. The high precision flow regulating control valve of claim 1, wherein, The adjusting groove and the water inlet are located on the same straight line, and the axle hole and the water outlet are located on the same straight line.

6. The high precision flow regulating control valve of claim 1, wherein, A third bearing is arranged between the end surface of the valve core on the water outlet side and the shell.

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