Valve flow regulating precision control device

Abstract

This invention relates to the technical field of valve flow control, and discloses a valve flow regulation precision control device, including a regulating pipe and a valve body. A first connecting rod is inserted through the inner wall of the connecting hole, and a rack is fixedly provided on one side of the outer wall of the first connecting rod. A gear is rotatably connected to the inner wall of the mounting groove. A sliding groove is opened on the inner wall of the first connecting rod, and a pressing rod is inserted through the inner wall of the sliding groove. This invention starts a motor to rotate the gear, which in turn engages the rack, causing the first connecting rod to pass through the connecting hole and slide up and down in the regulating groove with the first sealing ball, thereby regulating the area blocking the regulating pipe. If the motor fails and cannot control the gear to engage the rack and the first connecting rod to rise and fall, an electric hydraulic cylinder is activated to extend and push the shaft into the sliding groove to press the pressing rod therein, thereby pressing the first sealing ball. This causes the sleeve to stretch the first spring, which in turn lowers the first sealing ball, thereby regulating the flow rate through the regulating pipe.

Description

Technical Field

[0001] This invention belongs to the technical field of valve flow control, and specifically relates to a valve flow regulation accuracy control device. Background Technology

[0002] In industrial production and fluid control systems, valve flow regulation plays a central role. Its key principle lies in precisely changing the valve opening to achieve detailed control of fluid flow, thereby ensuring the stable and efficient operation of the entire system. Valve flow regulation methods are mainly divided into two categories: automatic regulation and manual and electric regulation. These two types of regulation methods each have their own characteristics and are suitable for different scenario requirements. As a key component in valve flow regulation, the flow control valve possesses the ability to intelligently sense changes in system pressure. It automatically adjusts the valve core opening based on pressure fluctuations, cleverly compensating for pressure differentials to ensure the set flow rate remains constant. This feature effectively solves the common problem of hydraulic imbalance in pipeline networks, providing strong support for stable system operation. In industrial production, precise flow control of valves is of great significance. It not only ensures the accurate supply of fluids during industrial production, meeting the stringent flow requirements of the production process, but also enables the precise discharge of some wastewater, avoiding resource waste and environmental pollution. Therefore, valve flow accuracy control devices play an indispensable role in industrial production.

[0003] However, existing valve flow regulation precision control devices still have the following drawbacks during use: 1. Currently, most valve flow accuracy control devices only have one flow regulation control structure at the upper end to control the flow rate when controlling the valve flow. This single design has obvious defects. When the equipment is subjected to accidental impact or aging problems as it is used for a long time, the regulation function is very easy to fail. In industrial production, the control and regulation of emergency discharge is crucial. Once the regulation function fails, the equipment will not be able to respond in time, which greatly reduces the flexibility of equipment use and brings potential risks to industrial production. 2. During the process of frequent and long-term regulation of flow rate in valve flow control devices, the upper adjustment structure needs to slide back and forth continuously to achieve different degrees of flow interception. This process will increase the friction between the adjustment structure and related components. Therefore, it is necessary to frequently lubricate the upper and lower sliding adjustment areas. However, adding lubricant to ordinary control devices is extremely troublesome. The outer casing of the equipment must be disassembled before adding lubricant. This not only increases the complexity of operation, but also adds extra workload to the staff and reduces work efficiency. 3. Existing valve flow control devices, when controlling valve flow, mostly only have basic flow control functions for discharged liquids and lack effective backflow prevention design. In certain special cases, such as when there is a large pressure difference before and after the system, the discharged fluid is prone to backflow. This not only affects the normal use of the valve flow control device, but in severe cases, it can even cause liquid to flow back to the initial equipment, causing equipment damage and economic losses to the enterprise. In addition, when high flow rates are required, ordinary valve body flow control devices usually do not have a flow rate fixing function at the top, which makes the flow rate unstable during the flow process, further reducing the protection and stability of the device and making it difficult to meet the high requirements of industrial production for valve flow control.

[0004] Therefore, it is necessary to invent a valve flow regulation precision control device to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a valve flow rate regulation accuracy control device to solve the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a valve flow rate regulation precision control device, comprising a regulating pipe and a valve body, wherein a dual flow rate regulation mechanism, a lubrication assembly, an auxiliary sealing assembly and an anti-backflow mechanism are respectively installed at the upper end of the regulating pipe; The dual flow regulation mechanism includes a mounting platform installed on top of the regulating pipe. The inner wall of the mounting platform has a regulating groove, and the mounting platform communicates with the inner wall of the regulating pipe through the inner wall of the regulating groove. A mounting bracket is installed on the top of the mounting platform. A connecting hole is located in the middle of the top of the mounting platform. A mounting groove is located on one side of the top of the mounting platform, and the inner wall of the mounting groove communicates with the inner wall of one end of the connecting hole. A first connecting rod is inserted through the inner wall of the connecting hole. A rack is fixedly mounted on one side of the outer wall of the first connecting rod. A gear is rotatably connected to the inner wall of the mounting groove, and the outer wall of the gear meshes with the outer wall of the rack. A sleeve is slidably connected to the lower edge of the outer wall of the first connecting rod. The sleeve has a first sealing ball fixedly installed at its bottom and a first spring fixedly installed at its top. One end of the first spring is fixedly connected to one side of the first connecting rod. The inner wall of the first connecting rod has a sliding groove. A pressing rod is inserted through the inner wall of the sliding groove. The bottom of the pressing rod passes through the inner wall of the sleeve and is fixedly connected to the top of the first sealing ball. The inner wall of the first sealing ball has a first vacuum groove. One end of the gear passes through the outer wall of one side of the mounting platform and is fixedly connected to a motor. An electric hydraulic cylinder is installed on the top of the mounting frame. The output end of the electric hydraulic cylinder passes through the inner wall of the mounting frame and is inserted through a push shaft. The outer wall of one end of the push shaft is inserted through the inner wall of the sliding groove. Preferably, the lubrication assembly includes an oil inlet groove formed at one end of the inner wall of the mounting platform, and a first lubrication hole is formed below the oil inlet groove on the inner wall of the mounting platform. The inner wall of one end of the first lubrication hole is connected to the inner wall of the oil inlet groove, and the inner wall of the other end of the first lubrication hole is connected to the inner wall of the regulating groove.

[0007] Preferably, a second lubrication hole is provided at the upper and lower ends of one side of the inner wall of the mounting platform, and the inner wall of one end of the two second lubrication holes is connected to the inner wall of the oil inlet groove, and the inner wall of the other end of the two second lubrication holes is connected to the inner wall of the connecting hole. An oil inlet pipe is installed on one side of the top of the mounting platform, and the inner wall of one end of the oil inlet pipe is connected to the inner wall of the other end of the oil inlet groove.

[0008] Preferably, the valve body is fixedly connected to one end of the control pipe, and the inner wall of one end of the valve body is connected to the inner wall of one end of the control pipe. A connecting pipe is fixedly connected to one end of the valve body, and the inner wall of one end of the connecting pipe is connected to the inner wall of the other end of the valve body.

[0009] Preferably, the auxiliary sealing assembly includes a contact rod fixed to one side of the top of the first connecting rod, a first buffer hole is provided at one end of the top of the mounting platform, and a second buffer hole is provided at the bottom of the inner wall of the first buffer hole.

[0010] Preferably, a pressure sensor is inserted into the inner wall of the first buffer hole, a second spring is fixedly provided at the bottom of the pressure sensor, one end of the second spring is fixedly connected to the bottom of the inner wall of the first buffer hole, and a buffer shaft is fixedly connected to the bottom of the pressure sensor through the inner wall of the second spring.

[0011] Preferably, the outer wall of the buffer shaft is inserted into the inner wall of the second buffer hole, a wire is inserted into one side of the mounting platform, an electric control valve is installed at one end of the control pipe, and the electric control valve is electrically connected to the pressure sensor through a wire.

[0012] Preferably, the anti-backflow mechanism includes a connecting elbow that is inserted into the other end of the control pipe. A flow guide tank is installed on the top of the connecting elbow, and the inner wall of the flow guide tank is in communication with the inner wall of the connecting elbow. A second connecting rod is inserted into the top of the flow guide tank. A connecting frame is installed on one side of the top of the flow guide tank. A connecting strip is rotatably connected to the inner wall of the connecting frame. An arc-shaped locking block is fixed at one end of the connecting strip. An arc-shaped locking groove is opened on one side of the second connecting rod, and the outer wall of the arc-shaped locking block is inserted into the inner wall of the arc-shaped locking groove.

[0013] Preferably, the bottom of the second connecting rod passes through the inner wall of the guide tank and is fixedly connected to a second sealing ball. The inner wall of the second sealing ball is provided with a second vacuum groove. A limiting ring is fixedly provided at the lower edge of the outer wall of the second sealing ball. A drain pipe is inserted and connected to one side of the guide tank.

[0014] Preferably, a control switch is installed on one side of the control pipeline, and the motor, electric hydraulic cylinder, pressure sensor and electric control valve are all electrically connected to an external power supply through the control switch.

[0015] The technical effects and advantages of this invention are as follows: 1. In this invention, liquid guided by the valve body flows through the regulating pipe and then is discharged. During this process, the motor is started to rotate the gear, which in turn engages the rack and pinion, causing the first connecting rod to pass through the connecting hole. While passing through, the sleeve connected by the first spring and the first sealing ball below slide up and down in the regulating groove, thereby causing the first sealing ball to block the area of ​​the regulating pipe for adjustment, thus achieving the function of flow control regulation. The elastic coefficient of the first spring is sufficient to ensure that the sleeve is connected to the first connecting rod and will not detach from the first connecting rod. If the motor fails and cannot control the gear to engage the rack and pinion to raise and lower the first connecting rod, the operator can start the electric hydraulic cylinder to extend and push the shaft to enter the slide groove and squeeze the squeezing rod there. The squeezing rod slides in the slide groove and squeezes the first sealing ball, causing the sleeve to stretch the first spring and lower the first sealing ball to regulate the flow rate of the regulating pipe, achieving the purpose of dual regulation. Even if one regulation function fails, the operator can use the other regulation method to regulate the flow rate. At the same time, with the help of the auxiliary sealing component, zero flow can be achieved when the fluid is prohibited from passing through, thereby improving the flexibility of equipment use. 2. In the present invention, during long-term use, the operator can introduce lubricating oil through the oil inlet pipe, and then the lubricating oil enters the oil inlet groove through the oil inlet pipe. Since the oil inlet groove is connected to the first lubrication hole and the second lubrication hole respectively, the lubricating oil enters the connecting hole through the upper and lower distributed second lubrication holes and then contacts the first connecting rod. The lubricating oil in the first lubrication hole flows into the regulating groove and contacts the first sealing ball, achieving full lubrication. Moreover, there is no need to disassemble the equipment for lubrication operation, thereby improving the convenience of using the device and also improving work efficiency. 3. This invention achieves this by creating a second vacuum groove inside the second sealing ball during fluid discharge, reducing its weight and causing the fluid to float it up and discharge it through the drain pipe. When the fluid flows back in the drain pipe, it squeezes the limiting ring, forcing the second sealing ball to drop. If the arc-shaped groove is not locked, the second sealing ball will automatically seal the connecting bend as the fluid flows back, thus achieving the purpose of preventing backflow and preventing damage to the front-end equipment caused by fluid backflow. When the valve body requires a large flow rate, rotating the connecting strip on the connecting frame exposes the arc-shaped groove on the side of the second connecting rod where the second sealing ball floats up. Rotating the connecting strip at this time allows the arc-shaped block to engage with the arc-shaped groove, fixing the height of the second sealing ball and ensuring a stable and large flow rate of fluid discharge, thereby improving the protection and stability of the device.

[0016] Its features and advantages will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the front of the invention; Figure 2 This is a schematic diagram of the internal structure of the regulating pipe of the present invention; Figure 3 This is a schematic diagram of the mounting platform of the present invention; Figure 4 This is a schematic diagram of the connection between the first connecting rod and the first sealing ball of the present invention; Figure 5 This is a schematic diagram of the interior of the first connecting rod of the present invention; Figure 6 This is an appendix to the specification of this invention. Figure 2 An enlarged schematic diagram of point A in the middle; Figure 7 This is a schematic diagram of the back of the invention; Figure 8 This is an appendix to the specification of this invention. Figure 3 An enlarged diagram of point B in the middle; Figure 9 This is a schematic diagram of the second connecting rod of the present invention being fixed. Figure 10 This is a schematic diagram of the interior of the flow guide tank of the present invention.

[0019] In the diagram: 1. Control pipe; 2. Dual flow regulation mechanism; 201. Mounting platform; 202. Control groove; 203. Mounting bracket; 204. Connecting hole; 205. Mounting groove; 206. First connecting rod; 207. Rack; 208. Gear; 209. Sleeve; 210. First sealing ball; 211. First spring; 212. Slide groove; 213. Extrusion rod; 214. First vacuum groove; 215. Motor; 216. Electro-hydraulic cylinder; 217. Push shaft; 3. Lubrication assembly; 301. Oil inlet groove; 302. First lubrication hole; 303. Second lubrication hole; 304. 4. Oil inlet pipe; 5. Valve body; 6. Connecting pipe; 7. Auxiliary sealing assembly; 601. Contact rod; 602. First buffer hole; 603. Second buffer hole; 604. Pressure sensor; 605. Second spring; 606. Buffer shaft; 607. Wire; 608. Solenoid valve; 7. Anti-backflow mechanism; 701. Connecting bend; 702. Flow guide tank; 703. Second connecting rod; 704. Connecting frame; 705. Connecting strip; 706. Arc-shaped locking block; 707. Arc-shaped locking groove; 708. Second sealing ball; 709. Second vacuum groove; 710. Limiting ring; 711. Drain pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention provides, for example Figure 1 - Figure 10 The valve flow rate regulation precision control device shown includes a regulating pipe 1 and a valve body 4. The device is characterized in that: a dual flow rate regulation mechanism 2, a lubrication assembly 3, an auxiliary sealing assembly 6 and an anti-backflow mechanism 7 are respectively installed at the upper end of the regulating pipe 1. The dual flow regulating mechanism 2 includes a mounting platform 201 installed on the top of the regulating pipe 1. The inner wall of the mounting platform 201 has a regulating groove 202, and the mounting platform 201 communicates with the inner wall of the regulating pipe 1 through the inner wall of the regulating groove 202. A mounting bracket 203 is installed on the top of the mounting platform 201. A connecting hole 204 is opened at the middle position of the top of the mounting platform 201. A mounting groove 205 is opened on one side of the top of the mounting platform 201, and the inner wall of the mounting groove 205 communicates with the inner wall of one end of the connecting hole 204. A first connecting rod 206 is inserted through the inner wall of the connecting hole 204. A rack 207 is fixedly installed on one side of the outer wall of the first connecting rod 206. A gear 208 is rotatably connected to the inner wall of the mounting groove 205, and the outer wall of the gear 208 meshes with the outer wall of the rack 207. A sleeve 209 is slidably connected to the lower edge of the outer wall of the first connecting rod 206. A first sealing ball 210 is fixedly provided at the bottom of the sleeve 209, a first spring 211 is fixedly provided at the top of the sleeve 209, and one end of the first spring 211 is fixedly connected to one side of the first connecting rod 206. A sliding groove 212 is provided on the inner wall of the first connecting rod 206. A pressing rod 213 is inserted through the inner wall of the sliding groove 212, and the bottom of the pressing rod 213 passes through the inner wall of the sleeve 209 and is fixedly connected to the top of the first sealing ball 210. A first vacuum groove 214 is provided on the inner wall of the first sealing ball 210. A motor 215 is fixedly connected to one end of the gear 208 through the outer wall of one side of the mounting platform 201. An electric hydraulic cylinder 216 is installed on the top of the mounting bracket 203. A push shaft 217 is inserted through the inner wall of the mounting bracket 203, and the outer wall of one end of the push shaft 217 is inserted through the inner wall of the sliding groove 212. In use, since the regulating pipe 1 is connected to the valve body 4, the liquid guided by the valve body 4 flows through the regulating pipe 1 and then is discharged. During this process, the motor 215 is started, causing its rotating gear 208 to mesh with the rack 207, which in turn drives the first connecting rod 206 through the connecting hole 204. Simultaneously, the first connecting rod 206, connected by the first spring 211, slides up and down in the regulating groove 202, causing the first sealing ball 210 to block the area of ​​the regulating pipe 1 for adjustment, thus achieving flow control. The elastic coefficient of the first spring 211 is sufficient to ensure that the sleeve 209 connected to the first connecting rod 206 will not detach from it. If the motor 215 rotates, the liquid will be discharged. When gear 208 fails to engage with rack 207 and lift the first connecting rod 206, the operator can activate the electric hydraulic cylinder 216 to extend and push shaft 217 into the slide groove 212 to squeeze the squeezing rod 213. The squeezing rod 213 slides in the slide groove 212 and squeezes the first sealing ball 210, causing sleeve 209 to stretch the first spring 211 and lower the first sealing ball 210 to regulate the flow rate of its regulating pipe 1, achieving dual regulation. Even if one regulation function fails, the operator can use the other regulation method to regulate the flow rate. At the same time, with the auxiliary sealing component 6, zero flow rate can be achieved when fluid is prohibited from passing through, thereby improving the flexibility of equipment use. Furthermore, the lubrication assembly 3 includes an oil inlet groove 301 formed at one end of the inner wall of the mounting platform 201. A first lubrication hole 302 is formed below the oil inlet groove 301 on the inner wall of the mounting platform 201. The inner wall of one end of the first lubrication hole 302 is connected to the inner wall of the oil inlet groove 301, and the inner wall of the other end of the first lubrication hole 302 is connected to the inner wall of the regulating groove 202. The first lubrication hole 302 and the oil inlet groove 301 are distributed vertically, and the inner wall of one end of the first lubrication hole 302 is connected to the edge of the inner wall of the regulating groove 202. This allows the lubricating oil to flow directly into the edge of the inner wall of the regulating groove 202 after flowing through the first lubrication hole 302, and then contact the first sealing ball 210 for lubrication.

[0022] The upper and lower ends of one side of the inner wall of the mounting platform 201 are provided with second lubrication holes 303. The inner walls of one end of the two second lubrication holes 303 are respectively connected to the inner wall of the oil inlet groove 301, and the inner walls of the other end of the two second lubrication holes 303 are respectively connected to the inner wall of the connecting hole 204. An oil inlet pipe 304 is installed on one side of the top of the mounting platform 201, and the inner wall of one end of the oil inlet pipe 304 is connected to the inner wall of the other end of the oil inlet groove 301. During long-term use, the operator can guide lubricating oil through the oil inlet pipe 304. The lubricating oil is then introduced into the oil inlet trough 301 through the oil inlet pipe 304. Since the oil inlet trough 301 is connected to the first lubrication hole 302 and the second lubrication hole 303 respectively, the lubricating oil enters the connecting hole 204 through the upper and lower distributed second lubrication holes 303 and then contacts the first connecting rod 206. The lubricating oil in the first lubrication hole 302 flows into the regulating groove 202 and contacts the first sealing ball 210, achieving full lubrication without disassembling the equipment for lubrication operation, thereby improving the convenience of using the device. Furthermore, the valve body 4 is fixedly connected to one end of the control pipe 1, and the inner wall of one end of the valve body 4 is connected to the inner wall of one end of the control pipe 1. A connecting pipe 5 is fixedly connected to one end of the valve body 4, and the inner wall of one end of the connecting pipe 5 is connected to the inner wall of the other end of the valve body 4. The valve body 4 can be connected to an external pipe through the connecting pipe 5, thereby enabling flow control. Furthermore, the auxiliary sealing assembly 6 includes a contact rod 601 fixed to one side of the top of the first connecting rod 206. A first buffer hole 602 is provided at one end of the top of the mounting platform 201, and a second buffer hole 603 is provided at the bottom of the inner wall of the first buffer hole 602. The first buffer hole 602 and the second buffer hole 603 are distributed vertically, so that the pressure sensor 604 connected to the buffer shaft 606 can extend and retract within the first buffer hole 602, and the buffer shaft 606 can extend and retract within the second buffer hole 603, so that it is not obstructed.

[0023] A pressure sensor 604 is inserted into the inner wall of the first buffer hole 602. A second spring 605 is fixedly installed at the bottom of the pressure sensor 604, and one end of the second spring 605 is fixedly connected to the bottom of the inner wall of the first buffer hole 602. A buffer shaft 606 is fixedly connected to the bottom of the pressure sensor 604 through the inner wall of the second spring 605, and the pressure sensor 604 is located directly below the contact rod 601.

[0024] The outer wall of the buffer shaft 606 is inserted into the inner wall of the second buffer hole 603. A wire 607 is inserted into one side of the mounting platform 201. An electric control valve 608 is installed at one end of the control pipe 1. The electric control valve 608 is electrically connected to the pressure sensor 604 through the wire 607. When the flow rate is controlled to the minimum and fluid is not allowed to pass through, the first connecting rod 206 will bring the first sealing ball 210 down to the bottom. However, there may still be a risk of leakage at this point. Therefore, when the first sealing ball 210 descends to the lowest point, the contact rod 601 on the first connecting rod 206 will squeeze the pressure sensor 604 and then control the electric control valve 608 through the wire 607 to be driven, thereby sealing the end of the control pipe 1 to achieve a strict seal and prevent fluid from passing through. Furthermore, the anti-backflow mechanism 7 includes a connecting bend 701 that is inserted into the other end of the control pipe 1. A flow guide tank 702 is installed on the top of the connecting bend 701, and the inner wall of the flow guide tank 702 is in communication with the inner wall of the connecting bend 701. A second connecting rod 703 is inserted into the top of the flow guide tank 702. A connecting frame 704 is installed on one side of the top of the flow guide tank 702. A connecting strip 705 is rotatably connected to the inner wall of the connecting frame 704. An arc-shaped locking block 706 is fixedly provided at one end of the connecting strip 705. The second connecting... An arc-shaped groove 707 is provided on one side of the rod 703, and the outer wall of the arc-shaped block 706 is interlocked with the inner wall of the arc-shaped groove 707. When the valve body requires a large flow rate, the connecting strip 705 on the connecting frame 704 is rotated, so that the arc-shaped groove 707 on one side of the second connecting rod 703 is exposed when the second sealing ball 708 floats up. At this time, rotating the connecting strip 705 causes the arc-shaped block 706 to be inserted into the arc-shaped groove 707, which fixes the height of the second sealing ball 708, so that the fluid is discharged stably in a large flow rate.

[0025] The bottom of the second connecting rod 703 passes through the inner wall of the guide tank 702 and is fixedly connected to a second sealing ball 708. The inner wall of the second sealing ball 708 is provided with a second vacuum groove 709. A limiting ring 710 is fixedly provided at the lower edge of the outer wall of the second sealing ball 708. A drain pipe 711 is inserted and connected to one side of the guide tank 702. During the fluid discharge process, the second vacuum groove 709 inside the second sealing ball 708 reduces its own weight, and the fluid will float it and discharge it through the drain pipe 711. When the fluid in the drain pipe 711 flows backward, it will squeeze the limiting ring 710 and force the second sealing ball 708 to drop. When the arc-shaped slot 707 is not locked, the second sealing ball 708 will automatically seal the connecting bend 701 with the backflow of the backward fluid, thereby achieving the purpose of preventing backflow and preventing the fluid backflow from damaging the front-end equipment, thereby improving the protection and stability of the device.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A valve flow regulating precision control device, comprising a regulating pipe (1) and a valve body (4), characterized in that: The upper end of the regulation pipeline (1) is respectively provided with a double flow regulation mechanism (2), a lubricating assembly (3), an auxiliary plugging assembly (6) and an anti-backflow mechanism (7); The double flow regulation mechanism (2) comprises a mounting table (201) mounted on the top of the regulation pipeline (1), a regulation groove (202) is formed in the inner wall of the mounting table (201), and the inner wall of the regulation groove (202) is in communication with the inner wall of the regulation pipeline (1); a mounting rack (203) is mounted on the top of the mounting table (201); a connecting hole (204) is formed in the middle of the top of the mounting table (201); a mounting groove (205) is formed in one side of the top of the mounting table (201), and the inner wall of the mounting groove (205) is in communication with the inner wall of one end of the connecting hole (204); a first connecting rod (206) is connected through the inner wall of the connecting hole (204); a rack (207) is fixedly arranged on one side of the outer wall of the first connecting rod (206); a gear (208) is rotatably connected to the inner wall of the mounting groove (205), and the outer wall of the gear (208) is engaged with the outer wall of the rack (207); a sleeve (209) is slidably connected to the lower edge of the outer wall of the first connecting rod (206); a first sealing ball (210) is fixedly arranged on the bottom of the sleeve (209); a first spring (211) is fixedly arranged on the top of the sleeve (209), and one end of the first spring (211) is fixedly connected to one side of the first connecting rod (206); a sliding groove (212) is formed in the inner wall of the first connecting rod (206); an extrusion rod (213) is connected through the inner wall of the sliding groove (212), and the bottom of the extrusion rod (213) is fixedly connected to the top of the first sealing ball (210) through the inner wall of the sleeve (209); a first vacuum groove (214) is formed in the inner wall of the first sealing ball (210); a motor (215) is fixedly connected to one end of the gear (208) through the outer wall of one side of the mounting table (201); an electric hydraulic cylinder (216) is mounted on the top of the mounting rack (203); a pushing shaft (217) is connected through the output end of the electric hydraulic cylinder (216) and the inner wall of the sliding groove (212).

2. The valve flow regulation accuracy control device of claim 1, wherein: The lubricating assembly (3) comprises an oil inlet groove (301) formed in one end of the inner wall of the mounting table (201); a first lubricating hole (302) is formed in the inner wall of the mounting table (201) below the oil inlet groove (301), and the inner wall of one end of the first lubricating hole (302) is in communication with the inner wall of the oil inlet groove (301); and the inner wall of the other end of the first lubricating hole (302) is in communication with the inner wall of the regulation groove (202).

3. The valve flow regulation accuracy control device of claim 1, wherein: The second lubricating holes (303) are arranged on the upper end and the lower end of the inner wall of one side of the mounting table (201), the inner wall of one end of the two second lubricating holes (303) is communicated with the inner wall of the oil inlet groove (301), the inner wall of the other end of the two second lubricating holes (303) is communicated with the inner wall of the connecting hole (204), and the oil inlet pipe (304) is arranged on one side of the top of the mounting table (201) and communicated with the inner wall of the other end of the oil inlet groove (301).

4. The valve flow regulation accuracy control device of claim 1, wherein: The valve body (4) is fixedly connected with one end of the control pipeline (1), the inner wall of one end of the valve body (4) is communicated with the inner wall of one end of the control pipeline (1), one end of the valve body (4) is fixedly connected with the butt joint pipe (5), and the inner wall of one end of the butt joint pipe (5) is communicated with the inner wall of the other end of the valve body (4).

5. The valve flow regulation accuracy control device of claim 1, wherein: The auxiliary plugging assembly (6) comprises the contact rod (601) fixed on one side of the top of the first connecting rod (206), and the first buffer hole (602) is arranged in one end of the top of the mounting table (201), and the second buffer hole (603) is arranged in the bottom of the inner wall of the first buffer hole (602).

6. The valve flow regulation accuracy control device of claim 5, wherein: The inner wall of the first buffer hole (602) is connected with the pressure sensor (604), the bottom of the pressure sensor (604) is fixedly provided with the second spring (605), one end of the second spring (605) is fixedly connected with the bottom of the inner wall of the first buffer hole (602), and the bottom of the pressure sensor (604) is fixedly connected with the buffer shaft (606) penetrating through the inner wall of the second spring (605).

7. The valve flow regulation accuracy control device of claim 6, wherein: The outer wall of the buffer shaft (606) is connected with the inner wall of the second buffer hole (603), one side of the mounting table (201) is connected with the wire (607), one end of the control pipeline (1) is provided with the electric control valve (608), and the electric control valve (608) is electrically connected with the pressure sensor (604) through the wire (607).

8. The valve flow regulation accuracy control device of claim 1, wherein: The anti-backflow mechanism (7) comprises the connecting elbow (701) connected with the other end of the control pipeline (1), the connecting elbow (701) is provided with the flow guide tank (702) on the top, the inner wall of the flow guide tank (702) is communicated with the inner wall of the connecting elbow (701), the flow guide tank (702) is connected with the second connecting rod (703) penetrating through the top, the flow guide tank (702) is provided with the connecting frame (704) on one side of the top, the inner wall of the connecting frame (704) is rotatably connected with the connecting strip (705), one end of the connecting strip (705) is fixedly provided with the arc-shaped clamping block (706), one side of the second connecting rod (703) is provided with the arc-shaped clamping groove (707), and the outer wall of the arc-shaped clamping block (706) is connected with the inner wall of the arc-shaped clamping groove (707).

9. The valve flow regulation accuracy control device of claim 8, wherein: The bottom of the second connecting rod (703) passes through the inner wall of the flow guide tank (702) and is fixedly connected to the second sealing ball (708). The inner wall of the second sealing ball (708) is provided with a second vacuum groove (709). A limiting ring (710) is fixedly provided at the lower edge of the outer wall of the second sealing ball (708). A drain pipe (711) is inserted and connected to one side of the flow guide tank (702).

10. The valve flow regulation accuracy control device of claim 1, wherein: A control switch is installed on one side of the control pipe (1), and the motor (215), electric hydraulic cylinder (216), pressure sensor (604) and electric control valve (608) are all electrically connected to an external power supply through the control switch.

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