An automatically adjusted flow control valve

Abstract

The utility model discloses an automatic regulation's flow control valve, including valve body, the both ends of valve body are connected to the water inlet and outlet pipeline respectively, be provided with the valve core in the valve body, the rotatable installation of valve body has the control rod, the valve body is installed with worm and worm gear group and variable speed gear group, and the worm output of worm and worm gear group is connected in the control rod, and the variable speed gear group output is connected in the worm input of worm and worm gear group, and the water inlet pipeline end fixed mounting of valve body has the pressure measuring tube, and the pressure measuring tube can slip and is installed in the pressure measuring rod, and the pressure measuring spring is equipped with in the pressure measuring rod outside, and the pressure measuring screw pipe is screwed on the pressure measuring tube upper end, and the pressure measuring spring upper end is located in the pressure measuring screw pipe, and the pressure measuring rod penetrates the pressure measuring screw pipe, and the pressure measuring rod upper end articulates has telescopic link, and the telescopic link is connected in the variable speed gear group input away from the pressure measuring rod one end. The utility model discloses through setting up and the control rod linkage pressure measuring rod, when the water pressure of valve body water inlet end changes, changes the opening of valve core through the control rod, adjusts the water amount.

Description

Technical Field

[0001] This utility model belongs to the field of flow control valve technology, and relates to an automatically adjusting flow control valve. Background Technology

[0002] When a liquid flows in a pipe, changes in water pressure can cause variations in the flow rate. For equipment requiring a stable flow rate, these variations can lead to malfunctions or other problems. Therefore, an automatically adjusting flow control valve is needed to adjust the flow rate in response to changes in water pressure. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes an automatically adjusting flow control valve, which effectively solves the issues in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An automatically regulating flow control valve, comprising:

[0006] The valve body has inlet and outlet water pipes connected to both ends, and a valve core is installed inside the valve body.

[0007] A control lever, which is rotatably mounted on the valve body and fixedly connected to the valve core;

[0008] A worm gear assembly, wherein the worm gear assembly is mounted on the valve body, and the worm gear output end of the worm gear assembly is connected to the control rod;

[0009] A variable speed gear set is fixedly installed on the valve body, and the output end of the variable speed gear set is connected to the worm input end of the worm gear set.

[0010] A pressure testing tube is fixedly installed at the water inlet pipe end of the valve body and is connected to the valve body;

[0011] A pressure measuring rod is slidably installed inside the pressure measuring tube, and a pressure measuring spring is sleeved on the outside of the pressure measuring rod;

[0012] A pressure regulating solenoid is threaded to the upper end of the pressure measuring tube, the upper end of the pressure measuring spring abuts against the pressure regulating solenoid, and the pressure measuring rod passes through the pressure regulating solenoid;

[0013] A telescopic rod, the first end of which is hinged to the upper end of the pressure measuring rod, and the second end of which is connected to the input end of the variable speed gear set.

[0014] Optionally, the input end of the gear set is connected to an auxiliary drive, an angle sensor is fixedly installed in the valve body, the second end of the telescopic rod is connected to the angle sensor, and the angle sensor 62 is connected to the auxiliary drive.

[0015] Optionally, the angle sensor is fixedly installed at the input shaft of the gear set, the input shaft of the gear set is slidably connected to a spline rod, the input end of the angle sensor is a spline tube coaxial with the spline rod, the second end of the telescopic rod is rotatably installed on the valve body, the spline rod is slidably keyed to the telescopic rod, and the spline rod passes through the valve body.

[0016] Optionally, a locking tube coaxial with the spline rod is fixedly installed on the outside of the valve body. The locking tube has a radial pin hole, and the spline rod has two annular grooves. The locking tube is pin-connected to the spline rod.

[0017] Optionally, the spline rod is fixedly connected with a pull ring.

[0018] Optionally, a push-button switch fixedly installed on the valve body is connected to the auxiliary drive circuit, and a trigger block for triggering the push-button switch is fixedly connected to the spline rod.

[0019] Optionally, a flow meter is also installed at the outlet end of the valve body.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. A worm gear assembly and a speed-changing gear set are installed on the control rod controlling the opening and closing of the valve core in the valve body. A pressure-measuring tube is connected to the control rod via a telescopic rod. A pressure-measuring rod is installed inside the pressure-measuring tube, and a pressure-measuring spring is fitted onto the pressure-measuring rod. The pressure-measuring tube connects to the valve body. Water pressure pushes the pressure-measuring rod upwards, compressing the pressure-measuring spring. When the pressure-measuring rod rises, it drives the telescopic rod to rotate. The telescopic rod, through the worm gear assembly and the speed-changing gear set, drives the control rod to rotate, thereby controlling the opening degree of the valve core. A pressure-adjusting screw is installed on the outside of the pressure-measuring tube. The compression of the pressure-measuring spring is adjusted through the pressure-adjusting screw. By setting a pressure-measuring rod linked to the control rod, when the water pressure at the valve body inlet changes, the opening degree of the valve core is changed via the control rod, thus regulating the water flow.

[0022] 2. By setting up an angle sensor and auxiliary drive, the rotation angle of the telescopic rod can be more accurately sensed, and the valve core opening can be controlled by the auxiliary drive;

[0023] 3. By setting up a spline rod section, the spline rod can be slidably connected to the transmission gear set and the angle sensor. By sliding the spline rod, the connection state between the spline rod and the transmission gear set and the angle sensor can be changed, and the structure of the telescopic rod drive can be switched. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the installation platform according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the pressure measuring tube part of an embodiment of this utility model.

[0027] Reference numerals: 1. Valve body; 101. Mounting platform; 2. Control lever; 31. Worm gear assembly; 32. Variable speed gear assembly; 41. Pressure measuring tube; 42. Pressure measuring rod; 421. Pressure measuring spring; 43. Pressure regulating solenoid; 5. Telescopic rod; 61. Auxiliary drive; 62. Angle sensor; 63. Splined rod; 64. Locking tube; 65. Push-button switch. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1 to 3 This is an example of an automatically adjusting flow control valve disclosed in an embodiment of this utility model. Please refer to [link / reference]. Figure 1 It includes valve body 1, with inlet and outlet water pipes connected to both ends of valve body 1. Valve core is installed inside valve body 1. Please refer to [link / reference]. Figure 2 A control lever 2 is rotatably mounted on the valve body 1. A worm gear assembly 31 and a speed-changing gear set 32 ​​are mounted on the valve body 1. The output end of the worm gear assembly 31 is connected to the control lever 2, and the output end of the speed-changing gear set 32 ​​is connected to the input end of the worm gear assembly 31. A pressure testing pipe 41 is fixedly installed at the water inlet pipe end of the valve body 1. Please refer to [link / reference]. Figure 3 The pressure testing tube 41 is connected to the valve body 1. A pressure testing rod 42 is slidably installed inside the pressure testing tube 41. A pressure testing spring 421 is sleeved on the outside of the pressure testing rod 42. A pressure adjusting screw tube 43 is threaded to the upper end of the pressure testing tube 41. The upper end of the pressure testing spring 421 abuts against the pressure adjusting screw tube 43. The pressure testing rod 42 passes through the pressure adjusting screw tube 43. A telescopic rod 5 is hinged to the upper end of the pressure testing rod 42. The end of the telescopic rod 5 away from the pressure testing rod 42 is connected to the input end of the speed change gear set 32.

[0030] Specifically, a worm gear assembly 31 and a speed-changing gear set 32 ​​are installed on the control rod 2 that controls the opening and closing of the valve core in the valve body 1. This assembly is connected to the pressure measuring tube 41 via a telescopic rod 5. A pressure measuring rod 42 is installed inside the pressure measuring tube 41, and a pressure measuring spring 421 is fitted onto the pressure measuring rod 42. The pressure measuring tube 41 connects to the valve body 1. Water pressure pushes the pressure measuring rod 42 upwards, compressing the pressure measuring spring 421. When the pressure measuring rod 42 rises, it drives the telescopic rod 5 to rotate. The telescopic rod 5, through the worm gear assembly 31 and the speed-changing gear set 32, drives the control rod 2 to rotate, thereby controlling the opening degree of the valve core. A pressure adjusting screw 43 is installed on the outside of the pressure measuring tube 41, and the compression of the pressure measuring spring 421 is adjusted via the pressure adjusting screw 43.

[0031] In this way, by setting a pressure measuring rod 42 that is linked to the control rod 2, when the water pressure at the water inlet of the valve body 1 changes, the opening of the valve core is changed by the control rod 2 to adjust the water volume.

[0032] In some feasible embodiments, the valve body 1 and valve core are existing technologies and will not be described in detail here. The control lever 2 is a control structure set according to the valve core. When the valve core is a structure that rotates to change the opening, the control lever 2 is set as a cylindrical rod fixedly connected to the valve core and keyed to the worm gear; when the valve core is a structure that slides to change the opening, the control lever 2 is a threaded rod that is slidably keyed to the valve body 1 and threadedly connected to the worm gear.

[0033] For ease of installation, a box-shaped mounting platform 101 is provided on the upper end of the valve body 1. The worm gear assembly 31 is installed inside the mounting platform. The worm gear assembly 31 is a one-way transmission, preventing the control lever 2 from driving the transmission gear set 32 ​​in the reverse direction. The transmission gear set 32 ​​is fixedly installed on the mounting platform, and its output end is connected to the worm. The transmission gear set 32 ​​amplifies the rotation of the telescopic rod 5. The pressure measuring tube 41 is cylindrical, and a piston is provided at the bottom of the pressure measuring rod 42. A pressure measuring spring 421 is sleeved on the pressure measuring rod 42, and the pressure measuring spring 421 abuts against the pressure regulating screw tube 43. The upper end of the pressure measuring rod 42 is connected to the telescopic rod 5. When the water pressure at the inlet changes, the flow rate at the outlet changes. This change in inlet water pressure causes the pressure measuring rod 42 to rise or fall, which in turn rotates the worm gear assembly 31 and the transmission gear set 32 ​​through the telescopic rod 5, causing the control lever 2 to rotate and adjust the valve core opening, thereby adjusting the flow rate at the outlet.

[0034] As a specific embodiment of the automatically regulating flow control valve provided in the application, please refer to [link / reference needed]. Figure 2 The input end of the gear set 32 ​​is connected to an auxiliary drive 61. An angle sensor 62 is fixedly installed inside the valve body 1. The second end of the telescopic rod 5 is connected to the angle sensor 62, and the angle sensor 62 is connected to the auxiliary drive 61.

[0035] Overall, by setting the angle sensor 62 and the auxiliary drive 61, it is easier to more accurately sense the rotation angle of the telescopic rod 5, and control the valve core opening through the auxiliary drive 61.

[0036] Furthermore, the angle sensor 62 is fixedly installed at the input shaft position of the gear set 32. The input shaft of the gear set 32 ​​is slidably connected to a spline rod 63. The input end of the angle sensor 62 is a spline tube coaxial with the spline rod 63. The second end of the telescopic rod 5 is rotatably installed on the valve body 1. The spline rod 63 is slidably keyed to the telescopic rod 5 and passes through the valve body 1.

[0037] It should be understood that by setting the spline rod 63 part, the spline rod 63 can be slidably connected to the transmission gear set 32 ​​and the angle sensor 62. By sliding the spline rod 63, the connection state between the spline rod 63 and the transmission gear set 32 ​​and the angle sensor 62 can be changed, and the structure of the telescopic rod 5 drive can be switched.

[0038] Furthermore, a locking tube 64, coaxial with the splined rod 63, is fixedly installed on the outer side of the valve body 1. The locking tube 64 has a radial pin hole, and two annular grooves are formed on the side of the splined rod 63. The locking tube 64 is pin-connected to the splined rod 63. The pin is inserted into the annular groove through the radial pin hole, and the rotation of the splined rod 63 is not affected by the pin.

[0039] It should be understood that the position of the spline rod 63 is locked by setting the locking tube 64 and the radial pin hole, and by using the cylindrical pin.

[0040] Furthermore, a push-button switch 65 is fixedly installed on the valve body 1 and connected to the auxiliary drive circuit 61. A trigger block for triggering the push-button switch 65 is fixedly connected to the spline rod 63.

[0041] It should be understood that by setting the button switch 65, when switching the drive structure of the telescopic rod 5, the circuit of the auxiliary drive 61 is opened and closed, reducing the possibility of mutual interference between the two drive modes.

[0042] In some feasible configurations, for ease of installation, a shelf is fixedly mounted on a box-shaped mounting platform 101 above the worm gear assembly 31. A transmission gear set 32 ​​is fixedly mounted on the shelf, with its output end being a splined tube. The second end of the telescopic rod 5 is fixed via a bearing seat fixedly mounted on the shelf. A splined rod 63 is slidably mounted inside the telescopic rod 5, with a cylindrical rod fixedly connected to its end. The cylindrical rod passes through the angle sensor 62 and then through the mounting platform 101. A locking tube 64 is mounted on the mounting platform 101. When the cylindrical rod is pulled out, the splined rod 63 engages with the angle sensor 62, and the trigger block presses the button switch 65 to activate the auxiliary drive 61 circuit, which is a stepper motor. When the cylindrical rod is pushed in, the splined rod 63 disengages from the angle sensor 62 and engages with the splined tube of the transmission gear set 32, and the trigger block releases the button switch 65 to disconnect the auxiliary drive 61 circuit.

[0043] As another specific embodiment of the automatically regulating flow control valve provided in the application, a flow meter is also installed at the outlet end of the valve body 1.

[0044] Depending on the specific usage scenario, a flow meter makes it easy to observe flow rates.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatically regulating flow control valve, characterized in that, include: Valve body (1), with inlet and outlet water pipes connected to both ends of the valve body (1), and a valve core installed inside the valve body (1); A control lever (2) is rotatably mounted on the valve body (1) and fixedly connected to the valve core; A worm gear assembly (31) is mounted on the valve body (1), and the worm output end of the worm gear assembly (31) is connected to the control rod (2). A speed-changing gear set (32) is fixedly installed on the valve body (1), and the output end of the speed-changing gear set (32) is connected to the worm input end of the worm gear set (31). Pressure measuring tube (41) is fixedly installed at the water inlet pipe end of the valve body (1) and the pressure measuring tube (41) is connected to the valve body (1); A pressure measuring rod (42) is slidably installed inside the pressure measuring tube (41), and a pressure measuring spring (421) is sleeved on the outside of the pressure measuring rod (42). A pressure regulating solenoid (43) is threaded to the upper end of the pressure measuring tube (41), the upper end of the pressure measuring spring (421) abuts against the pressure regulating solenoid (43), and the pressure measuring rod (42) passes through the pressure regulating solenoid (43). Telescopic rod (5), the first end of which is hinged to the upper end of the pressure measuring rod (42), and the second end is connected to the input end of the speed change gear set (32).

2. The automatically adjusting flow control valve according to claim 1, characterized in that: The input end of the gear set (32) is connected to an auxiliary drive (61), and an angle sensor (62) is fixedly installed inside the valve body (1). The second end of the telescopic rod (5) is connected to the angle sensor (62), and the angle sensor (62) is connected to the auxiliary drive (61).

3. The automatically adjusting flow control valve according to claim 2, characterized in that: The angle sensor (62) is fixedly installed at the input shaft of the gear set (32). The input shaft of the gear set (32) is slidably connected to a spline rod (63). The input end of the angle sensor (62) is a spline tube coaxial with the spline rod (63). The second end of the telescopic rod (5) is rotatably installed on the valve body (1). The spline rod (63) is slidably keyed to the telescopic rod (5). The spline rod (63) passes through the valve body (1).

4. The automatically adjusting flow control valve according to claim 3, characterized in that: A locking tube (64) coaxial with the spline rod (63) is fixedly installed on the outside of the valve body (1). The locking tube (64) has a radial pin hole. The spline rod (63) has two annular grooves. The locking tube (64) is pin connected to the spline rod (63).

5. The automatically adjusting flow control valve according to claim 4, characterized in that: The spline rod (63) is fixedly connected to a pull ring.

6. The automatically adjusting flow control valve according to claim 4, characterized in that: The auxiliary drive (61) circuit is connected to a button switch (65) fixedly installed on the valve body (1), and the spline rod (63) is fixedly connected to a trigger block that triggers the button switch (65).

7. The automatically adjusting flow control valve according to claim 1, characterized in that: A flow meter is also installed at the outlet end of the valve body (1).

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