Hydraulic flow valve with self-cleaning function

Abstract

The invention relates to the technical field of flow valves, in particular to a hydraulic flow valve with a self-cleaning function, which comprises a valve body, one side of the valve body is communicated with a liquid inlet cover, the liquid inlet cover is provided with a first flange, the two ends of the valve body are communicated with liquid outlet pipes, the tail ends of the liquid outlet pipes are provided with Y-shaped collecting pipes, and the two liquid outlet pipes are communicated through the Y-shaped collecting pipes. A worker can set the flow monitor according to the quality of oil in a hydraulic system and the working environment of equipment, after a certain flow is achieved, under the action of the adjusting mechanism and the scraping mechanism, the scraping rod cleans impurities adhering to the first valve element or the second valve element, the cleaning mechanism is synchronously triggered, and the cleaning effect is achieved. And scraped impurities are intercepted and collected, a worker can clean the collected impurities under the condition that the flow valve operates normally, the operation efficiency and stability of a hydraulic system are improved, and the maintenance and cleaning cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of flow valves, in particular to a hydraulic flow valve with a self-cleaning function. Background Art

[0002] As one of the important systems widely used in the industrial field, the reliability and service life of the hydraulic system are closely related to the cleanliness of the system. As a key control element in the hydraulic system, the hydraulic flow valve is responsible for regulating and controlling the flow of the fluid, and its performance directly affects the operating efficiency and stability of the entire hydraulic system. However, in actual applications, the hydraulic flow valve is often easily affected by impurities in the medium, resulting in valve clogging, stagnation or reduced sealing performance, thereby affecting the normal operation of the hydraulic system. Specifically, it is mainly reflected in the following aspects: 1. Impurity accumulation: During the operation of the hydraulic system, impurities in the medium, such as particulate matter, oil stains, metal chips, etc., will gradually accumulate inside the hydraulic flow valve, causing the valve to be blocked or stuck, affecting the normal flow of the fluid.

[0003] 2. Decreased sealing performance: The presence of impurities will destroy the sealing of the valve sealing surface, resulting in increased leakage and reduced efficiency of the hydraulic system.

[0004] 3. Difficult cleaning: Traditional cleaning methods often require disassembling the hydraulic flow valve for cleaning, which is not only time-consuming and labor-intensive, but also easy to cause secondary damage to the valve; To this end, we propose a hydraulic flow valve with a self-cleaning function. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a hydraulic flow valve with a self-cleaning function, comprising a valve body, one side of the valve body is connected to a liquid inlet cover, a first flange is arranged on the liquid inlet cover, both ends of the valve body are connected to a liquid outlet pipe, a Y-shaped manifold is arranged at the end of the liquid outlet pipe to connect the two liquid outlet pipes, both ends of the valve body are installed with valve seats, an inverted cone-shaped sealing groove is opened on the valve seat, a second flange is installed at the other end of the Y-shaped manifold, and further comprising: A first valve core, wherein the first valve core is installed inside the valve body, the top end of the first valve core is a conical surface that fits the sealing groove, and the other end of the first valve core is fixed with a first sliding rod; a second valve core, the second valve core is installed inside the valve body, a first slide groove is formed at the end thereof, and the first slide groove corresponds to the first slide rod; A support mechanism, the support mechanism is installed inside the valve body and connected to the first valve core and the second valve core, and the support mechanism limits the movement trajectory of the first valve core and the second valve core; An adjusting mechanism, wherein the adjusting mechanism is installed inside the valve body and connected to the supporting mechanism, and the adjusting mechanism adjusts the distance between the first valve core and the valve seat on the corresponding side, and the distance between the second valve core and the valve seat on the corresponding side by changing the position of the supporting mechanism, thereby changing the opening area of ​​the liquid outlet pipes on both sides; Scraping rods, there are two of the scraping rods, and the top ends of the scraping rods are bent, respectively fit with the top surfaces of the first valve core and the second valve core, and are arranged inside the valve body; A scraping mechanism, which is disposed inside the valve body and connected to the supporting mechanism, the adjusting mechanism, and the scraping rod, and which controls the contact and separation of the scraping rod with the corresponding first valve core and second valve core, and synchronously drives the first valve core and the second valve core to rotate when the adjusting mechanism operates; A fixed cover, wherein there are two fixed covers, which are respectively arranged on the liquid outlet pipe, and both sides of the fixed covers are connected to the liquid outlet pipe; An arc-shaped filter screen, wherein the arc-shaped filter screen is arranged inside the fixed cover; The cleaning mechanism is installed inside the fixed cover and connected to the arc filter screen and electrically connected to the scraping mechanism. After the scraping rod is fitted with the corresponding first valve core and the second valve core, the cleaning mechanism drives the arc filter screen on the corresponding side to block the connection between the fixed cover and the liquid outlet pipe.

[0006] Preferably, the supporting mechanism comprises a first fixing ring and a second fixing ring respectively sleeved on the first valve core and the second valve core, a second slide groove is provided in the valve body, a first slide rail is installed in the valve body, a first supporting frame is relatively penetrated and installed on the first slide rail and the second slide groove, two groups of the first supporting frames respectively clamp the first fixing ring and the second fixing ring, a first groove corresponding to the second slide groove and the first slide rail is provided on the first supporting frame, rollers are arranged on the first supporting frame, the number of rollers on each of the first supporting frames is three, and they are distributed in a circle, respectively fitting with one side of the corresponding first fixing ring and the second fixing ring.

[0007] Preferably, the adjustment mechanism comprises a second support frame slidably mounted in the second slide groove, a double-output shaft motor is mounted on the second support frame, an external threaded tube is sleeved on the output shaft of the double-output shaft motor, an internal threaded tube is sleeved on the external threaded tube, and the other side of the internal threaded tube is respectively fixed to the first support frame on the corresponding side; The valve also includes a limiting mechanism installed in the valve body, wherein the limiting mechanism limits the position of the regulating mechanism.

[0008] Preferably, the limiting mechanism comprises an electric push rod fixed at one end inside the valve body, the electric push rod is of electromagnet self-locking type and is electrically connected to the double-output shaft motor.

[0009] Preferably, the scraping mechanism includes a first gear respectively sleeved on the first valve core and the second valve core, the second gear is sleeved on the output shaft of the double-output shaft motor, the first gear and the second gear are meshed with each other, and also includes two micro-servo motors installed on the inner wall positions of the first support frame on the first slide rail, and a ring is fixed at one end of the scraper rod, and the output shaft of the micro-servo motor passes through the rings on the scraper rod at the corresponding position.

[0010] Preferably, one-way valves are provided in both confluence ports of the Y-shaped confluence pipe.

[0011] Preferably, a butt joint is installed on the top of the fixed cover, a sealing cover is installed on the butt joint, and the butt joint and the sealing cover are detachable.

[0012] Preferably, the cleaning mechanism includes an incomplete cylindrical cover relatively fixed on the bottom surface of the sealing cover, and also includes a rotating shaft installed through the sealing cover, a connecting plate is fixed at one end of the rotating shaft, and the connecting plate is fixed to the bottom end of the arc-shaped filter screen. A micro stepper motor is installed on the sealing cover, and the micro stepper motor is electrically connected to the micro servo motor on the corresponding side.

[0013] Preferably, a triangular block is fixed inside the liquid inlet cover, and the top end of the triangular block corresponds to the axis of the first flange.

[0014] Preferably, a flow monitor is provided in the valve body, and the flow monitor is electrically connected to the micro servo motor.

[0015] The present invention has at least the following beneficial effects: 1. The staff can set the flow monitor according to the quality of the oil in the hydraulic system and the working environment of the equipment. When a certain flow is reached, under the action of the adjustment mechanism and the scraping mechanism, the scraper rod cleans the impurities adhering to the first valve core or the second valve core, and simultaneously triggers the cleaning mechanism to intercept and collect the impurities scraped off; 2. With the cooperation of the cleaning mechanism and the two valve cores, the staff can clean the collected impurities when the flow valve is operating normally, thereby improving the operating efficiency and stability of the hydraulic system, reducing maintenance and cleaning costs, extending the service life of the equipment, and creating greater economic benefits for the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle; Figure 4It is a schematic diagram of the internal side structure of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at B in the middle; Figure 6 It is a schematic diagram of the internal partial structure of the present invention; Figure 7 It is a schematic diagram of the decomposed structure of the cleaning mechanism of the present invention.

[0017] In the figure: 10, valve body; 11, liquid inlet cover; 12, first flange; 13, liquid outlet pipe; 14, Y-shaped manifold; 16, second flange; 15, valve seat; 20, first valve core; 21, first slide rod; 30, second valve core; 31, first slide groove; 4, support mechanism; 41, first fixing ring; 42, second fixing ring; 43, second slide groove; 44, first slide rail; 45, first support frame; 46, first groove; 47, roller; 5, adjustment mechanism; 51, second support frame; 52, double-outlet shaft electric machine; 53, external threaded tube; 54, internal threaded tube; 500, limiting mechanism; 501, electric push rod; 60, scraper rod; 6, scraping mechanism; 61, first gear; 62, second gear; 63, micro servo motor; 64, collar; 70, fixed cover; 71, arc filter; 8, cleaning mechanism; 81, incomplete cylindrical cover; 82, rotating shaft; 83, connecting plate; 84, micro stepping motor; 91, one-way valve; 92, docking joint; 93, sealing cover; 94, triangular block; 95, flow monitor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: See also Figure 1-7 The present invention provides a technical solution: a hydraulic flow valve with a self-cleaning function, comprising a valve body 10, one side of the valve body 10 is connected to a liquid inlet cover 11, a first flange 12 is arranged on the liquid inlet cover 11, both ends of the valve body 10 are connected to a liquid outlet pipe 13, a Y-shaped manifold 14 is arranged at the end of the liquid outlet pipe 13 to connect the two liquid outlet pipes 13, both ends of the valve body 10 are installed with valve seats 15, a sealing groove is opened on the valve seat 15, and a second flange 16 is installed at one end of the Y-shaped manifold 14 away from the first valve core 20, and further comprising: A first valve core 20, which is installed inside the valve body 10, has a top end that is a conical surface that fits the sealing groove, and a first sliding rod 21 that is fixed to the other end; A second valve core 30, which is installed inside the valve body 10, and has a first slide groove 31 at one end close to the first valve core 20, and a first slide rod 21 on the first valve core 20 is located in the first slide groove 31; The support mechanism 4 is installed inside the valve body 10 and connected to the first valve core 20 and the second valve core 30. The support mechanism 4 limits the movement trajectory of the first valve core 20 and the second valve core 30; The regulating mechanism 5 is installed inside the valve body 10 and connected to the supporting mechanism 4. The regulating mechanism 5 adjusts the distance between the first valve core 20 and the valve seat 15 on the corresponding side, and the distance between the second valve core 30 and the valve seat 15 on the corresponding side by changing the position of the supporting mechanism 4, thereby changing the opening area of ​​the liquid outlet pipes 13 on both sides; The scraper rods 60 are provided in two pieces, and the top ends of the scraper rods 60 are bent and respectively fit with the top surfaces of the first valve core 20 and the second valve core 30 , and are disposed inside the valve body 10 ; The scraping mechanism 6 is disposed inside the valve body 10 and connected to the supporting mechanism 4, the adjusting mechanism 5 and the scraping rod 60. The scraping mechanism 6 controls the contact and separation of the scraping rod 60 with the corresponding first valve core 20 and second valve core 30, and synchronously drives the first valve core 20 and the second valve core 30 to rotate when the adjusting mechanism 5 operates. There are two fixed covers 70, which are respectively arranged on the liquid outlet pipe 13, and both sides of the fixed covers 70 are connected to the liquid outlet pipe 13; The curved filter screen 71 is arranged inside the fixed cover 70; The cleaning mechanism 8 is installed inside the fixed cover 70 and is connected to the arc filter screen 71 and is electrically connected to the scraping mechanism 6. After the scraper rod 60 is in contact with the corresponding first valve core 20 and the second valve core 30, the cleaning mechanism 8 drives the arc filter screen 71 on the corresponding side to block the connection between the fixed cover 70 and the liquid outlet pipe 13.

[0020] The supporting mechanism 4 includes a first fixing ring 41 and a second fixing ring 42 which are respectively sleeved on the first valve core 20 and the second valve core 30. A second slide groove 43 is provided in the valve body 10, and the second slide groove 43 is located on the side away from the liquid inlet cover 11. A first slide rail 44 is installed in the valve body 10, and the first slide rail 44 is located on the side close to the liquid inlet cover 11. A first support frame 45 is relatively slidably installed on the first slide rail 44 and the second slide groove 43. The first support frame 45 is provided with a first groove 46 corresponding to the second slide groove 43 and the first slide rail 44. Rollers 47 are provided on the first support frame 45. There are three rollers 47 on each first support frame 45, and they are distributed in a circular shape, respectively fitting with one side of the corresponding first fixing ring 41 and the second fixing ring 42. The two groups of first support frames 45 clamp the first fixing ring 41 and the second fixing ring 42 respectively through the rollers 47.

[0021] The roller 47 limits the position of the first valve core 20 and the second valve core 30 through the first fixing ring 41 and the second fixing ring 42 without affecting the rotation of the first valve core 20 and the second valve core 30. The first support frame 45 can slide at any position on the first slide rail 44 and the second slide groove 43.

[0022] The adjustment mechanism 5 includes a second support frame 51 slidably mounted in the second slide groove 43, a double-output shaft motor 52 is mounted on the second support frame 51, an external threaded tube 53 is sleeved on the output shaft of the double-output shaft motor 52, an internal threaded tube 54 is sleeved on the external threaded tube 53, and the other side of the internal threaded tube 54 is respectively fixed to the first support frame 45 on the corresponding side, and the adjustment mechanism 5 is located between the two first support frames 45; The valve body 10 further includes a limiting mechanism 500 installed in the valve body 10 , and the limiting mechanism 500 limits the position of the regulating mechanism 5 .

[0023] The limiting mechanism 500 includes an electric push rod 501 fixed at one end inside the valve body 10 . The electric push rod 501 is of an electromagnet self-locking type and is electrically connected to the double-output shaft motor 52 .

[0024] In the daily operation of the equipment and system, the operation of the electric push rod 501 itself limits the position of the first support frame 45. When the flow of the flow valve needs to be adjusted, the electric push rod 501 cuts off the power to the electromagnet, releases the self-locking, and the double-output shaft motor 52 starts, driving the external threaded tube 53 to rotate. The external threaded tube 53 simultaneously applies a rotational force to the internal threaded tube 54. The internal threaded tube 54 cannot rotate under the restriction of the first support frame 45 and the second slide groove 43. At this time, with the rotation of the external threaded tube 53, the internal threaded tube 54 will drive the corresponding first support frames 45 to move closer or farther from each other, and then drive the first valve core 20 and the second valve core 30 to move closer or farther from each other, changing the distance between the first valve core 20 and the second valve core 30 and the corresponding valve seat 15, so as to achieve the purpose of changing the flow. After the adjustment is completed, the electric push rod 501 is locked; It should be noted that the position of the second support frame 51, that is, the midpoint of the first valve core 20 and the second valve core 30, can be calculated based on the number of revolutions of the dual-shaft motor 52 and the distance changed by the electric push rod 501, and the midpoint can be made to coincide with the midpoint between the two valve seats 15 through the electric push rod 501. A sensor can also be arranged on the second support frame 51 to achieve the same effect. Its main purpose is that after each adjustment, the distances between the first valve core 20 and the second valve core 30 and their corresponding valve seats 15 are equal. When the liquid oil passes through the valve seat 15, the pressure on both sides is equal, which has a positive effect on the stable operation of the equipment.

[0025] The scraping mechanism 6 includes a first gear 61 respectively sleeved on the first valve core 20 and the second valve core 30, and the second gear 62 is sleeved on the output shaft of the double-output shaft motor 52. The first gear 61 and the second gear 62 are meshed with each other. It also includes a micro servo motor 63 installed on the inner wall position of two first support frames 45 on the first slide rail 44. A ring 64 is fixed at one end of the two scraper rods 60, and the output shaft of the micro servo motor 63 passes through the ring 64 on the scraper rod 60 at the corresponding position.

[0026] The device connected to the flow valve will be provided with a flow monitoring system, which is electrically connected to the micro servo motor 63. When the flow reaches a certain value, the micro servo motor 63 starts, and drives the scraper rod 60 to rotate through the collar 64, so that the scraper rod 60 fits with the top of the corresponding first valve core 20 or the second valve core 30. Then the adjustment mechanism 5 is turned on, and the double-shaft motor 52 drives the second gear 62 to rotate. The second gear 62 drives the first valve core 20 and the second valve core 30 to rotate through the first gear 61. During the rotation of the first valve core 20 and the second valve core 30, their top surfaces are cleaned by the scraper rod 60, and impurities and dirt adhering to the first valve core 20 and the second valve core 30 are separated; A flow monitor 95 is disposed in the valve body 10 , and the flow monitor 95 is electrically connected to the micro servo motor 63 .

[0027] The flow monitor 95 is arranged in this part to further increase the control accuracy of the flow valve, and the flow detector provided by the flow valve is more quick and convenient to debug.

[0028] The separated impurities may adhere to the scraper rod 60, and the scraper rod 60 is directly opposite to the liquid inlet cover 11. During the passage of the liquid oil, the scraper rod 60 will be continuously flushed, which is convenient for cleaning the scraper rod 60 next time; It should be noted that when the first valve core 20 and the second valve core 30 do not need to be cleaned or have been cleaned, driven by the micro servo motor 63, the scraper rod 60 rotates to a state perpendicular to the axis of the first valve core 20 to avoid interfering with the sealing between the first valve core 20 and the valve seat 15. The same applies to the second valve core 30.

[0029] One-way valves 91 are disposed in the two confluence ports of the Y-shaped confluence pipe 14 .

[0030] A docking joint 92 is installed at the top of the fixed cover 70 , a sealing cover 93 is installed on the docking joint 92 , and the docking joint 92 and the sealing cover 93 are detachable.

[0031] The cleaning mechanism 8 includes an incomplete cylindrical cover 81 fixed on the bottom surface of the sealing cover 93, and through holes connected to the liquid outlet pipe 13 are opened on both sides of the incomplete cylindrical cover 81. It also includes a rotating shaft 82 installed on the sealing cover 93, and a connecting plate 83 is fixed at one end of the rotating shaft 82. The connecting plate 83 is fitted with the bottom of the incomplete cylindrical cover 81. The connecting plate 83 is fixed to the bottom end of the arc filter screen 71. The arc filter screen 71 is located in the incomplete cylindrical cover 81 and can block the gap of the incomplete cylindrical cover 81. A micro stepping motor 84 is installed on the sealing cover 93, and the micro stepping motor 84 is electrically connected to the micro servo motor 63 on the corresponding side.

[0032] When the micro servo motor 63 is started and drives the scraper 60 to operate, the micro stepper motor 84 is started synchronously, and drives the connecting plate 83 and the arc filter 71 to rotate 90° through the rotating shaft 82. At this time, the arc filter 71 moves to the outlet where the fixed cover 70 is connected to the liquid outlet pipe 13 to filter the liquid oil passing through. When it is necessary to clean the impurities in the arc filter 71, the electric push rod 501 is started, and the first valve core 20 or the second valve core 30 is driven to fit with the valve seat 15 on the corresponding side through the first support frame 45 to block one side. Due to the existence of the one-way valve 91, the liquid outlet pipe 13 on the blocked side is in a closed state at this time. Subsequently, by releasing the connection between the sealing cover 93 and the docking joint 92, the arc filter 71 on one side can be cleaned. The same is true for the other side, that is, without shutting down the system or equipment, the impurities can be cleaned, which greatly improves the production efficiency of the enterprise, especially the assembly line production work that does not stop for 24 hours.

[0033] A triangular block 94 is fixed inside the liquid inlet cover 11 , and the center of the triangular block 94 is on the same straight line as the axis of the first flange 12 .

[0034] The liquid oil entering from the first flange 12 is diverted under the guidance of the triangular block 94. The diverted liquid oil can better flush the scraper rod 60 on the one hand, and can also prevent the liquid oil from directly impacting the valve core part when entering the flow valve, so that the operation is more stable.

[0035] Working principle: The flow valve is installed in the hydraulic system through the first flange 12 and the second flange 16. In the daily operation of the equipment and the system, the electric push rod 501 is limited by the position of the first support frame 45. When the flow of the flow valve needs to be adjusted, the electric push rod 501 cuts off the power to the electromagnet, releases the self-locking, and the double-output shaft motor 52 is started to drive the external threaded tube 53 to rotate. The external threaded tube 53 simultaneously applies a rotational force to the internal threaded tube 54. The internal threaded tube 54 cannot rotate under the restriction of the first support frame 45 and the second slide groove 43. At this time, as the external threaded tube 53 rotates, the internal threaded tube 54 will drive the corresponding first support frames 45 to move closer or farther from each other, and then drive the first valve core 20 and the second valve core 30 to move closer or farther from each other, changing the distance between the first valve core 20 and the second valve core 30 and the corresponding valve seat 15, so as to achieve the purpose of changing the flow. After the adjustment is completed, the electric push rod 501 is locked; The position of the second support frame 51, i.e., the midpoint of the first valve core 20 and the second valve core 30, can be calculated according to the number of revolutions of the dual-shaft motor 52 and the distance changed by the electric push rod 501, and the midpoint is made to coincide with the midpoint between the two valve seats 15 by the electric push rod 501. A sensor can also be arranged on the second support frame 51 to achieve the same effect. The main purpose is that after each adjustment, the distances between the first valve core 20 and the second valve core 30 and their respective corresponding valve seats 15 are equal. When the liquid oil passes through the valve seat 15, the pressure on both sides is equal, which has a positive effect on the stable operation of the equipment. When the flow rate reaches a certain value, the flow monitor 95 monitors and sends a signal to the micro servo motor 63, the micro servo motor 63 starts, the micro stepper motor 84 starts synchronously, and drives the scraper rod 60 to rotate through the collar 64, so that the scraper rod 60 fits with the top of the corresponding valve core, and then opens the adjustment mechanism 5, the double-output shaft motor 52 drives the second gear 62 to rotate, and the second gear 62 drives the first valve core 20 and the second valve core 30 to rotate through the first gear 61. During the rotation of the first valve core 20 and the second valve core 30, the top surface thereof is cleaned by the scraper rod 60, and the impurities and dirt adhered to the first valve core 20 and the second valve core 30 are separated. The separated impurities continue to be transported forward driven by the liquid oil, and the micro stepper motor 84 drives the connecting plate 83 and the arc filter 71 through the rotating shaft 82 After rotating 90°, the arc filter 71 moves to the outlet where the fixed cover 70 is connected to the liquid outlet pipe 13 to filter the liquid oil passing through. When it is necessary to clean the impurities in the arc filter 71, the electric push rod 501 is started, and the first valve core 20 or the second valve core 30 is driven to fit with the valve seat 15 on the corresponding side through the first support frame 45 to block the single side. Due to the existence of the one-way valve 91, the liquid outlet pipe 13 on the blocked side is in a closed state. Then, by releasing the connection between the sealing cover 93 and the docking joint 92, the arc filter 71 on one side can be cleaned, and the other side is similar. That is, without shutting down the system or equipment, the impurities can be cleaned, which greatly improves the production efficiency of the enterprise, especially the 24-hour non-stop assembly line production work. The detached impurities may adhere to the scraper rod 60 , and the liquid oil is diverted under the guidance of the triangular block 94 , and the diverted liquid oil directly flushes the scraper rod 60 , making it convenient to clean the scraper rod 60 next time.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic flow valve with a self-cleaning function, comprising a valve body (10), one side of the valve body (10) being connected to a liquid inlet cover (11), the liquid inlet cover (11) being provided with a first flange (12), both ends of the valve body (10) being connected to a liquid outlet pipe (13), a Y-shaped manifold (14) being provided at the end of the liquid outlet pipe (13) to connect the two liquid outlet pipes (13), both ends of the valve body (10) being provided with valve seats (15), the valve seats (15) being provided with sealing grooves, and a second flange (16) being provided at one end of the Y-shaped manifold (14) away from the valve body (10), characterized in that: Also includes: A first valve core (20), the first valve core (20) being installed inside the valve body (10), the top end of the first valve core being a conical surface that fits in with the sealing groove, and the other end of the first sliding rod (21) being fixed thereto; a second valve core (30), the second valve core (30) being installed inside the valve body (10), and having a first slide groove (31) formed at one end close to the first valve core (20), and a first slide rod (21) on the first valve core (20) being located in the first slide groove (31); A support mechanism (4), the support mechanism (4) being installed inside the valve body (10) and connected to the first valve core (20) and the second valve core (30), the support mechanism (4) limiting the movement tracks of the first valve core (20) and the second valve core (30); an adjusting mechanism (5), the adjusting mechanism (5) being installed inside the valve body (10) and connected to the supporting mechanism (4), the adjusting mechanism (5) adjusting the distance between the first valve core (20) and the valve seat (15) on the corresponding side thereof, and the distance between the second valve core (30) and the valve seat (15) on the corresponding side thereof by changing the position of the supporting mechanism (4), thereby changing the size of the opening areas of the liquid outlet pipes (13) on both sides; Scraping rods (60), the scraping rods (60) having two ends and bent top ends, respectively fitting against the top ends of the first valve core (20) and the second valve core (30), and being arranged inside the valve body (10); a scraping mechanism (6), the scraping mechanism (6) being arranged inside the valve body (10) and connected to the supporting mechanism (4), the adjusting mechanism (5) and the scraping rod (60); the scraping mechanism (6) respectively controls the contact and separation of the scraping rod (60) with the corresponding first valve core (20) and second valve core (30), and synchronously drives the first valve core (20) and the second valve core (30) to rotate when the adjusting mechanism (5) is in operation; A fixed cover (70), wherein two fixed covers (70) are provided respectively on the liquid outlet pipe (13), and both sides of the fixed covers are connected to the liquid outlet pipe (13); An arc-shaped filter screen (71), wherein the arc-shaped filter screen (71) is arranged inside the fixed cover (70); A cleaning mechanism (8) is installed inside the fixed cover (70) and is connected to the arc-shaped filter screen (71) and is electrically connected to the scraping mechanism (6). After the scraping rod (60) is in contact with the corresponding first valve core (20) and second valve core (30), the cleaning mechanism (8) drives the arc-shaped filter screen (71) on the corresponding side to block the connection between the fixed cover (70) and the liquid outlet pipe (13).

2. A hydraulic flow valve with self-cleaning function according to claim 1, characterized in that: The support mechanism (4) comprises a first fixing ring (41) and a second fixing ring (42) respectively sleeved on the first valve core (20) and the second valve core (30); a second slide groove (43) is provided in the valve body (10); a first slide rail (44) is installed in the valve body (10); a first support frame (45) is relatively slidably installed on the first slide rail (44) and the second slide groove (43); a first groove (46) corresponding to the second slide groove (43) and the first slide rail (44) is provided on the first support frame (45); a roller (47) is arranged on the first support frame (45); the number of rollers (47) on each of the first support frames (45) is three and they are distributed in a circular shape and are respectively fitted with one side of the corresponding first fixing ring (41) and second fixing ring (42); two groups of the first support frames (45) respectively clamp the first fixing ring (41) and the second fixing ring (42) through the rollers (47).

3. A hydraulic flow valve with self-cleaning function according to claim 2, characterized in that: The adjustment mechanism (5) comprises a second support frame (51) slidably mounted in a second slide groove (43), a double-output shaft motor (52) being mounted on the second support frame (51), an externally threaded tube (53) being sleeved on the output shafts of the double-output shaft motor (52), an internally threaded tube (54) being sleeved on the externally threaded tube (53), and the other side of the internally threaded tube (54) being fixed to the first support frame (45) on the corresponding side respectively; It also includes a limiting mechanism (500) installed in the valve body (10), wherein the limiting mechanism (500) limits the position of the regulating mechanism (5).

4. A hydraulic flow valve with self-cleaning function according to claim 3, characterized in that: The limiting mechanism (500) comprises an electric push rod (501) fixed at one end inside the valve body (10); the electric push rod (501) is of an electromagnet self-locking type and is electrically connected to the double-output shaft motor (52).

5. A hydraulic flow valve with self-cleaning function according to claim 4, characterized in that: The scraping mechanism (6) comprises a first gear (61) respectively sleeved on the first valve core (20) and the second valve core (30), the output shaft of the double-output shaft motor (52) is sleeved with a second gear (62), the first gear (61) and the second gear (62) are meshed with each other, and also comprises a micro servo motor (63) mounted on the inner wall position of two first support frames (45) on the first slide rail (44), one end of the two scraping rods (60) is fixed with a collar (64), and the output shaft of the micro servo motor (63) passes through the collar (64) on the scraping rod (60) at the corresponding position.

6. A hydraulic flow valve with self-cleaning function according to claim 5, characterized in that: One-way valves (91) are provided in both confluence ports of the Y-shaped confluence pipe (14).

7. A hydraulic flow valve with self-cleaning function according to claim 6, characterized in that: A butt joint (92) is installed at the top end of the fixed cover (70), a sealing cover (93) is installed on the butt joint (92), and the butt joint (92) and the sealing cover (93) are detachable.

8. The hydraulic flow valve with self-cleaning function according to claim 7, characterized in that: The cleaning mechanism (8) comprises an incomplete cylindrical cover (81) fixed to the bottom surface of the sealing cover (93), and also comprises a rotating shaft (82) penetrating and installed on the sealing cover (93); a connecting plate (83) is fixed to one end of the rotating shaft (82); the connecting plate (83) is in contact with the incomplete cylindrical cover (81); the connecting plate (83) is fixed to the bottom end of the arc-shaped filter screen (71); a micro-stepping motor (84) is installed on the sealing cover (93); the micro-stepping motor (84) is electrically connected to the micro-servo motor (63) on the corresponding side.

9. The hydraulic flow valve with self-cleaning function according to claim 8, characterized in that: A triangular block (94) is fixed inside the liquid inlet cover (11), and the center of the triangular block (94) is on the same straight line as the axis of the first flange (12).

10. The hydraulic flow valve with self-cleaning function according to claim 9, characterized in that: A flow monitor (95) is arranged in the valve body (10), and the flow monitor (95) is electrically connected to the micro servo motor (63).

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