Anti-blocking hydraulic valve group

Abstract

The invention provides an anti-blocking hydraulic valve bank, and relates to the technical field of valves, the anti-blocking hydraulic valve bank comprises a hydraulic valve body and an anti-blocking mechanism, the hydraulic valve body is provided with a first liquid outlet pipe and a first liquid inlet pipe, the anti-blocking mechanism comprises an anti-blocking shell, the anti-blocking shell is provided with a second liquid inlet pipe and a second liquid outlet pipe, and the second liquid outlet pipe is in through connection with the first liquid inlet pipe; a filter screen is arranged in the anti-blocking shell, an intermittent knocking head is arranged on the filter screen, the intermittent knocking head is used for knocking the filter screen, and an impurity collecting opening is formed in the anti-blocking shell. By arranging the filter screen, impurities in a working medium can be effectively prevented from entering the hydraulic valve, the impurities adsorbed by the filter screen fall out of the impurity collecting opening through knocking of the intermittent knocking head, the impurities in the working medium can be rapidly filtered, the hydraulic valve body is prevented from being blocked by the impurities, and the practicability is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and specifically to an anti-blocking hydraulic valve group. Background Technique

[0002] With the rapid development of hydraulic technology, hydraulic technology is increasingly widely applied to mechanical equipment. A hydraulic valve is an automatic component operated by pressure oil. It is controlled by the pressure oil of a distribution valve and is usually used in combination with an electromagnetic distribution valve. It can be used to remotely control the on-off of the oil, gas, and water pipeline systems of hydropower stations and is commonly used in oil circuits such as clamping, control, and lubrication. It is divided into direct-acting type and pilot type, and the pilot type is mostly used. Generally, there is a spool inside a hydraulic valve. The spool is a valve part by which the valve body realizes the basic functions of direction control, pressure control, or flow control through its movement.

[0003] However, during the use of the existing hydraulic valve group, impurities in the working medium will block the hydraulic valve. Once the hydraulic valve is blocked, the hydraulic regulation of the hydraulic valve and the liquid flow will be affected, greatly reducing the working efficiency of the hydraulic valve. At this time, the user needs to disassemble and clean the hydraulic valve, and the disassembly and cleaning of the existing hydraulic valve group are relatively troublesome, greatly wasting time and manpower. Summary of the Invention

[0004] The present invention provides an anti-blocking hydraulic valve group to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention discloses an anti-blocking hydraulic valve group, including a hydraulic valve body and an anti-blocking mechanism. An outlet pipe one and an inlet pipe one are arranged on the hydraulic valve body. The anti-blocking mechanism includes an anti-blocking shell. An inlet pipe two and an outlet pipe two are arranged on the anti-blocking shell. The outlet pipe two and the inlet pipe one are connected through. A filter screen is arranged inside the anti-blocking shell. An intermittent knocking head is arranged on the filter screen and is used for intermittently knocking the filter screen. An impurity collection port is opened on the anti-blocking shell.

[0006] Preferably, a driving motor is fixedly arranged on one side wall of the anti-blocking shell. A rotating rod is fixedly arranged on the output end of the driving motor. The rotating rod rotates and extends into the anti-blocking shell. A rotating plate is slidably arranged on the rotating rod. Rotating shafts are symmetrically arranged through the rotating plate in a rotating manner. A number of adsorption rods are arranged on the rotating shafts.

[0007] Preferably, limiting blocks are symmetrically and fixedly arranged on the rotating rod. Driving convex blocks are symmetrically and fixedly arranged on the side of the two limiting blocks close to each other. The driving convex blocks are fixedly connected to the rotating rod. Sliding grooves are symmetrically opened on the rotating plate, and the sliding grooves are matched with the driving convex blocks.

[0008] Preferably, a circular frame is fixedly arranged on one side wall of the anti-blocking housing, an annular friction plate is arranged inside the circular frame, a friction wheel is fixedly arranged on the rotating shaft, and the friction wheel is matched with the annular friction plate.

[0009] Preferably, an inclined plane annular groove is formed on the outer wall surface of the circular frame, U-shaped rods are symmetrically and fixedly arranged on the rotating plate, sliding blocks are fixedly arranged at the other ends of the U-shaped rods, and the sliding blocks are in sliding fit with the inclined plane annular groove.

[0010] Preferably, connecting rods are symmetrically and fixedly arranged on the rotating plate, fixed disks are fixedly connected to the other ends of the connecting rods, rotating rods are fixedly arranged on the fixed disks, the rotating rods pass through the filter screen, and a plurality of blades are fixedly arranged at the other ends of the rotating rods, and the plurality of blades are arranged inside the second liquid inlet pipe.

[0011] Preferably, fixing rods are also symmetrically and fixedly arranged on the rotating rod, and the fixing rods are arranged between the filter screen and the second liquid inlet pipe.

[0012] Preferably, a fixing ring is arranged on the fixed disk, a moving sleeve is rotatably arranged inside the fixing ring, the moving sleeve is sleeved on the periphery of the rotating rod, the moving sleeve slidably passes through the filter screen, and a driving frame is fixedly arranged at the other end of the moving sleeve, and the driving frame is used to drive the intermittent knocking head to knock the filter screen.

[0013] Preferably, a plurality of stabilizing rods are fixedly arranged on the inner wall of the anti-blocking housing, a circular ring is fixedly arranged on one side of the plurality of stabilizing rods close to each other, U-shaped fixing blocks are symmetrically and fixedly arranged on the circular ring, a rotating shaft is rotatably connected to the U-shaped fixing blocks, a knocking rod is fixedly arranged on the rotating shaft, and an intermittent knocking head is fixedly arranged at the other end of the knocking rod.

[0014] Preferably, a circular block is fixedly arranged inside the driving frame, the rotating rod slidably passes through the circular block, connecting rods are symmetrically and fixedly arranged on the circular block, the other ends of the connecting rods are fixedly connected to the driving frame, a U-shaped moving block is slidably arranged on the connecting rods, a pushing rod is hinged to the U-shaped moving block, and the other end of the pushing rod is fixedly connected to the rotating shaft.

[0015] Compared with the prior art, the present invention provides an anti-blocking hydraulic valve group, which has the following beneficial effects. By arranging a filter screen, impurities in the working medium can be effectively prevented from entering the hydraulic valve, and the impurities adsorbed on the filter screen can fall out from the impurity collection port through the knocking of the intermittent knocking head, so that the impurities in the working medium can be quickly filtered, avoiding the blockage of the hydraulic valve body by impurities, and the practicability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0017] Figure 1Schematic structural diagram of the present invention;

[0018] Figure 2 Schematic internal structure diagram of the anti-clogging housing of the present invention;

[0019] Figure 3 Schematic diagram of the cooperation between the friction wheel and the circular frame of the present invention;

[0020] Figure 4 Schematic diagram of the cooperation between the sliding block and the inclined plane annular groove of the present invention;

[0021] Figure 5 Schematic diagram of the cooperation between the rotating rod and the rotating plate of the present invention;

[0022] Figure 6 Schematic installation diagram of the moving sleeve and the rotating rod of the present invention;

[0023] Figure 7 Schematic installation diagram of the circular ring of the present invention;

[0024] Figure 8 Schematic diagram of the driving of the knocking rod of the present invention.

[0025] In the figure: 1, hydraulic valve body; 2, first liquid outlet pipe; 3, first liquid inlet pipe; 4, second liquid outlet pipe; 5, anti-clogging mechanism; 6, second liquid inlet pipe; 7, anti-clogging housing; 8, driving motor; 9, circular frame; 10, rotating shaft; 11, adsorption rod; 12, filter screen; 13, fixed rod; 14, blade; 15, rotating rod; 16, stabilizing rod; 17, impurity collection port; 18, moving sleeve; 19, rotating plate; 20, annular friction plate; 21, friction wheel; 22, U-shaped rod; 23, sliding block; 24, inclined plane annular groove; 25, rotating rod; 26, limiting block; 27, driving convex block; 28, connecting rod; 29, fixed ring; 30, circular ring; 31, U-shaped fixing block; 32, driving frame; 33, intermittent knocking head; 34, U-shaped moving block; 35, pushing rod; 36, circular block; 37, knocking rod; 38, connecting rod; 39, rotating shaft. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] Embodiment 1

[0030] An embodiment of the present invention provides an anti-clogging hydraulic valve group, as Figures 1-8 shown, which includes a hydraulic valve body 1 and an anti-clogging mechanism 5. An outlet pipe 1 2 and an inlet pipe 1 3 are provided on the hydraulic valve body 1. The anti-clogging mechanism 5 includes an anti-clogging shell 7. An inlet pipe 2 6 and an outlet pipe 2 4 are provided on the anti-clogging shell 7. The outlet pipe 2 4 and the inlet pipe 1 3 are connected through. A filter screen 12 is provided inside the anti-clogging shell 7. An intermittent knocking head 33 is provided on the filter screen 12. The intermittent knocking head 33 is used to intermittently knock the filter screen. An impurity collection port 17 is opened on the anti-clogging shell 7.

[0031] The working principle and beneficial effects of the above technical solution are as follows: First, connect the hydraulic valve body 1 and the anti-clogging mechanism 5, that is, connect the outlet pipe 2 4 and the inlet pipe 1 3. Then, introduce the working medium at the inlet pipe 2 6. The filter screen 12 will effectively filter the working medium. Then, the relatively clean working medium will enter the hydraulic valve body 1 through the outlet pipe 2 4 and the inlet pipe 1 3, and then flow out from the outlet pipe 1 2 to enter the next process;

[0032] Among them, the filter screen 12 adopts a composite filter screen, which is composed of an outer coarse filter screen (pore diameter 500μm) and an inner fine filter screen (pore diameter 50μm), intercepting impurities of different particle sizes in stages to avoid instantaneous blockage of the fine filter layer by large particles; and a 316L stainless steel woven mesh is used, with a tungsten carbide coating (thickness 20μm) plated on the surface, a pressure resistance strength of 50MPa, and resistance to acid and alkali media (pH2-12);

[0033] During the filtration process of the filter screen 12, the intermittent knocking head 33 intermittently knocks on the filter screen 12, causing the impurities, dust and other substances accumulated on the filter screen 12 to fall off. Finally, under the influence of gravity, they will fall into the impurity collection port 17, thereby making the filtration cycle of the filter screen 12 longer (the impurity collection port 17 adopts a conical funnel design (tilt angle 60°), and the inner wall is polished (roughness Ra≤0.8μm) to prevent impurities from sticking; a sealing cover is provided at the impurity collection port 17 to prevent the outflow of the working medium). During later use, the staff only needs to open the sealing cover to clean the impurities in the impurity collection port 17;

[0034] By setting the filter screen 12, it can effectively prevent impurities in the working medium from entering the hydraulic valve body 1. And through the knocking of the intermittent knocking head 33, the impurities adsorbed on the filter screen 12 fall out from the impurity collection port, which can quickly filter the impurities in the working medium and avoid the blockage of the hydraulic valve body 1, with stronger practicability.

[0035] Embodiment 2

[0036] Based on the above Embodiment 1, as Figures 2-6 shown, a driving motor 8 is fixedly arranged on one side wall of the anti-blocking shell 7. A rotating rod 25 is fixedly arranged on the output end of the driving motor 8. The rotating rod 25 rotates and extends into the anti-blocking shell 7. A rotating plate 19 is slidably arranged on the rotating rod 25. Rotating shafts 10 are symmetrically arranged through the rotating plate 19 in a rotating manner. A number of adsorption rods 11 are arranged on the rotating shafts 10.

[0037] Among them, the rotating shaft 10 is eccentrically installed on the rotating plate 19, and the rotating shaft 10 is rotatably connected to the rotating plate 19 through a bearing;

[0038] Among them, 4 adsorption rods 11 are circumferentially and evenly distributed on the rotating shaft 10. The adsorption rods 11 are activated carbon rods to achieve the adsorption effect of impurities; magnetic rods can also be used to adsorb metal particles in the working medium. Those skilled in the art can choose by themselves, or alternately choose to use;

[0039] The working principle and beneficial effects of the above technical solution are: when the working medium is introduced into the second inlet pipe 6, the driving motor 8 is started. The driving motor 8 drives the rotating rod 25 to rotate. The rotating rod 25 drives the rotating plate 19 to rotate. The rotating plate 19 drives the rotating shaft 10 to revolve around the center of the rotating plate 19. A number of adsorption rods 11 on the rotating shaft 10 will adsorb the small amount of remaining impurities in the filtered working medium (the working medium flows into the anti-blocking shell 7 through the second inlet pipe 6, and large particle impurities (particle size > 50μm) are initially intercepted by the filter screen 12. When the remaining micron-sized impurities (5 - 50μm) flow downstream with the medium, they are captured by the high-speed rotating adsorption rods 11), so as to better clean the working medium.

[0040] Example 3

[0041] Based on the above Example 2, as Figures 2-6 shown, limit blocks 26 are symmetrically and fixedly arranged on the rotating rod 25. On one side of the two limit blocks 26 close to each other, drive bumps 27 are symmetrically and fixedly arranged. The drive bumps 27 are fixedly connected to the rotating rod 25. Sliding grooves are symmetrically formed on the rotating plate 19, and the sliding grooves are matched with the drive bumps 27.

[0042] Among them, preferably, a circular frame 9 is fixedly arranged on one side wall of the anti-blocking shell 7. An annular friction plate 20 is arranged inside the circular frame 9. A friction wheel 21 is fixedly arranged on the rotating shaft 10, and the friction wheel 21 is matched with the annular friction plate 20.

[0043] Among them, preferably, an inclined surface ring groove 24 is formed on the outer wall surface of the circular frame 9. U-shaped rods 22 are symmetrically and fixedly arranged on the rotating plate 19. A sliding block 23 is fixedly arranged at the other end of the U-shaped rod 22, and the sliding block 23 is in sliding fit with the inclined surface ring groove 24.

[0044] Among them, the ring groove of the inclined surface ring groove 24 adopts a spiral surface design with an inclination angle of 30°. When the sliding block 23 slides along the circumference of the ring groove, the normal component force of the inclined surface will decompose into a radial thrust force, forcing the sliding block 23 to perform a periodic linear motion (leftward movement - rightward movement cycle) under the guiding action of the U-shaped rod 22.

[0045] Among them, the motion conversion is realized through the pure mechanical cooperation between the inclined surface ring groove 24 and the sliding block 23, without additional complex mechanisms such as cams and connecting rods, reducing the volume of the overall device by 30% and the weight by 25%.

[0046] The working principle and beneficial effects of the above technical solution are as follows: When the rotating rod 25 starts to rotate under the drive of the drive motor 8, the rotating rod 25 drives the limit blocks 26 and the drive bumps 27 to rotate. The drive bumps 27 drive the rotating plate 19 to rotate. The rotating plate 19 drives the U-shaped rods 22 to revolve. The sliding blocks 23 on the U-shaped rods 22 slide in the inclined surface ring groove 24. During the sliding process of the sliding blocks 23, due to the inclined surface of the inclined surface ring groove 24, the sliding blocks 23 will drive the U-shaped rods 22 to move left and right, so that the rotating plate 19 also moves left and right;

[0047] The rotation of the rotating plate 19 drives the rotation of the rotating shaft 10 around a common center. The friction wheel 21 on the rotating shaft 10 cooperates with the annular friction plate 20, causing the rotating shaft 10 to rotate about its own axis. Additionally, the rotating plate 19 causes the rotating shaft 10 to move left and right. Thus, the revolution, rotation, and axial movement of the rotating shaft 10 are achieved. The superposition of these three motions makes the adsorption rod 11 exhibit a "helical reciprocating" motion trajectory: for each complete revolution around a common center, the adsorption rod 11 rotates synchronously five times about its own axis and moves axially by a distance equal to two rod diameters. This motion pattern ensures that the adsorption rod 11 forms a dense and non-blind-zone coverage path within the working area. The adsorption rod 11 can contact impurities of smaller particles in the working medium at different angles and pressures, significantly improving the adsorption success rate. Through the above design, this mechanism not only solves the problems of single motion and many adsorption dead zones in traditional adsorption devices but also realizes the diversification of motion forms through mechanical structure innovation.

[0048] Embodiment 4

[0049] Based on the above Embodiment 3, as Figures 2-6 shown, connecting rods 28 are symmetrically and fixedly arranged on the rotating plate 19. The other ends of the connecting rods 28 are fixedly connected to a fixed disk 25. A rotating rod 15 is fixedly arranged on the fixed disk 25. The rotating rod 15 passes through the filter net 12. A plurality of blades 14 are fixedly arranged at the other end of the rotating rod 15. The plurality of blades 14 are arranged inside the second liquid inlet pipe 6.

[0050] Among them, preferably, fixing rods 13 are also symmetrically and fixedly arranged on the rotating rod 15. The fixing rods 13 are arranged between the filter net 12 and the second liquid inlet pipe 6.

[0051] The working principle and beneficial effects of the above technical solution are as follows: When the rotating plate 19 rotates, the rotating plate 19 drives the connecting rod 28 to rotate, the connecting rod 28 drives the fixed disk 25 to rotate, the fixed disk 25 drives the rotating rod 15 to rotate, and the two fixing rods 13 on the rotating rod 15 rotate. The fixing rods 13 will mix and disperse the working medium entering the anti-blocking housing 7. When the working medium enters the anti-blocking housing 7, the fixing rods 13 will collide with and stir the working medium. During the flow of the working medium, there may be situations such as particle aggregation. The rotation of the fixing rods 13 is like a stirrer, mixing and dispersing the working medium, making the working medium pass through the filter net 12 more evenly.

[0052] At the same time, the rotation of the fixing rods 13 also changes the flow direction and speed of the working medium, forming a turbulent flow state, further promoting the uniform distribution of the working medium. In this way, the working medium can pass through the filter net 12 in a more uniform state, reducing the problem of blockage of the filter net 12 caused by particle aggregation.

[0053] Through the mixing and dispersing effect of the fixing rod 13 on the working medium, the working medium is more uniform when passing through the filter screen 12. During the filtering process, the uniform working medium can also enable each part of the filter screen 12 to fully play its role, extending the service life of the filter screen 12.

[0054] Moreover, the rotation of the rotating rod 15 will also drive the rotation of several blades 14, and the rotating plate 19 will also drive the axial movement of the rotating rod 15. In fact, the blades 14 are performing a compound movement of rotation plus axial movement inside the second liquid inlet pipe 6, agitating the inside of the second liquid inlet pipe 6. Inside the second liquid inlet pipe 6, the working medium may contain various impurities, such as particles, fibers, etc. These impurities are likely to adhere to the inner wall of the second liquid inlet pipe 6 during the flow process, or aggregate with each other to form larger lumps, resulting in the blockage of the second liquid inlet pipe 6. The rotation and axial movement of the blades 14 can generate a strong agitating effect on the working medium inside the second liquid inlet pipe 6. The movement of the blades 14 will also generate pressure fluctuations, further destroying the aggregation structure of the impurities and making it difficult for them to form blockage objects;

[0055] And the structure is relatively simple. The connections between these components are firm and the transmission is stable, without the need for a complex control system or an additional power source.

[0056] Embodiment 5

[0057] On the basis of the above Embodiment 4, as Figure 2 、 Figures 7-8 shown, a fixing ring 29 is provided on the fixing disk 25. A moving sleeve 18 is rotatably arranged inside the fixing ring 29. The moving sleeve 18 is sleeved on the circumferential side of the rotating rod 15. The moving sleeve 18 slidably passes through the filter screen 12. The other end of the moving sleeve 18 is fixedly provided with a driving frame 32, and the driving frame 32 is used to drive the intermittent knocking head 33 to knock on the filter screen 12.

[0058] Among them, preferably, a number of stabilizing rods 16 are fixedly provided on the inner wall of the anti-blocking shell 7. A circular ring 30 is fixedly provided on the side of the number of stabilizing rods 16 close to each other. U-shaped fixing blocks 31 are symmetrically fixedly provided on the circular ring 30. A rotating shaft 39 is rotatably connected to the U-shaped fixing blocks 31. A knocking rod 37 is fixedly provided on the rotating shaft 39. The other end of the knocking rod 37 is fixedly provided with an intermittent knocking head 33.

[0059] Among them, preferably, a circular block 36 is fixedly provided inside the driving frame 32. The rotating rod 15 slidably passes through the circular block 36. Link rods 38 are symmetrically fixedly provided on the circular block 36. The other end of the link rod 38 is fixedly connected to the driving frame 32. A U-shaped moving block 34 is slidably arranged on the link rod 38. A pushing rod 35 is hinged to the U-shaped moving block 34. The other end of the pushing rod 35 is fixedly connected to the rotating shaft 39.

[0060] The working principle and beneficial effects of the above technical solution are as follows: The fixed disk 25 drives the movable sleeve 18 to move axially. The movable sleeve 18 drives the driving frame 32 to move axially. The driving frame 32 will drive two U-shaped movable blocks 34 to slide towards each other on the connecting rod 38. When the U-shaped movable block 34 slides on the connecting rod 38, the angle of the push rod 35 hinged to it will change. Since the other end of the push rod 35 is fixedly connected to the rotating shaft 39, the change in the angle of the push rod 35 will drive the rotating shaft 39 to rotate. The rotating shaft 39 drives the knocking rod 37 to rotate, and the intermittent knocking head 33 on the knocking rod 37 will knock on the filter screen 12. When the fixed disk 25 moves axially in one direction, the intermittent knocking head 33 approaches the filter screen 12 and knocks; when the fixed disk 25 moves axially in the opposite direction, the intermittent knocking head 33 moves away from the filter screen 12. In this way, the intermittent knocking of the filter screen 12 is realized;

[0061] By intermittently knocking the filter screen 12 with the intermittent knocking head 33, the impurities attached to the filter screen 12 can be effectively removed. During the filtering process, various impurities will gradually accumulate on the surface of the filter screen 12. These impurities will reduce the filtering efficiency of the filter screen and even cause blockage. The vibration generated by the intermittent knocking can loosen and detach the impurities attached to the filter screen 12, restore the filtering performance of the filter screen, and ensure the normal operation of the system;

[0062] The structure design of the entire knocking device is reasonable, and the connections between various components are tight and stable. The stabilizing rod 16, the circular ring 30, and the U-shaped fixing block 31 form a stable support structure, ensuring that the rotating shaft 39 can rotate stably. At the same time, the cooperation between the driving frame 32, the connecting rod 38, the U-shaped movable block 34, and the push rod 35 is precise, enabling the power to be transmitted accurately, ensuring that the intermittent knocking head 33 can stably knock on the filter screen 12;

[0063] The above structure utilizes the power of the rotating plate 19 to drive the rotating rod 15 to move axially, and through a series of mechanical transmissions, the intermittent knocking head 33 knocks on the filter screen 12. Without an additional power source, it greatly saves energy consumption and reduces the operating cost.

[0064] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

Claims

1. A clogging-proof hydraulic valve group, characterized in that, It includes a hydraulic valve body (1) and an anti-blocking mechanism (5). An outlet pipe one (2) and an inlet pipe one (3) are arranged on the hydraulic valve body (1). The anti-blocking mechanism (5) includes an anti-blocking shell (7). An inlet pipe two (6) and an outlet pipe two (4) are arranged on the anti-blocking shell (7). The outlet pipe two (4) and the inlet pipe one (3) are connected through. A filter screen (12) is arranged in the anti-blocking shell (7). An intermittent knocking head (33) is arranged on the filter screen (12), and the intermittent knocking head (33) is used for intermittently knocking the filter screen. An impurity collection port (17) is opened on the anti-blocking shell (7).

2. The anti-clogging hydraulic valve block according to claim 1, wherein A driving motor (8) is fixedly arranged on one side wall of the anti-blocking shell (7). A rotating rod (25) is fixedly arranged on the output end of the driving motor (8). The rotating rod (25) rotates and extends into the anti-blocking shell (7). A rotating plate (19) is slidably arranged on the rotating rod (25). Rotating shafts (10) are symmetrically arranged through the rotating plate (19) in a rotating manner. A plurality of adsorption rods (11) are arranged on the rotating shafts (10).

3. The anti-clogging hydraulic valve group according to claim 2, characterized in that, Limiting blocks (26) are symmetrically and fixedly arranged on the rotating rod (25). Driving bumps (27) are symmetrically and fixedly arranged on the side of the two limiting blocks (26) close to each other. The driving bumps (27) are fixedly connected with the rotating rod (25). Sliding grooves are symmetrically opened on the rotating plate (19), and the sliding grooves are matched with the driving bumps (27).

4. The anti-blocking hydraulic valve group according to claim 3, characterized in that, A circular frame (9) is fixedly arranged on one side wall of the anti-blocking shell (7). An annular friction plate (20) is arranged in the circular frame (9). A friction wheel (21) is fixedly arranged on the rotating shaft (10), and the friction wheel (21) is matched with the annular friction plate (20).

5. The anti-blocking hydraulic valve group according to claim 4, characterized in that, An inclined surface ring groove (24) is opened on the outer wall surface of the circular frame (9). U-shaped rods (22) are symmetrically and fixedly arranged on the rotating plate (19). A sliding block (23) is fixedly arranged at the other end of the U-shaped rod (22), and the sliding block (23) is slidably matched with the inclined surface ring groove (24).

6. The anti-clogging hydraulic valve group according to claim 3, characterized in that, Connecting rods (28) are symmetrically and fixedly arranged on the rotating plate (19). The other ends of the connecting rods (28) are fixedly connected with a fixed disk (25). A rotating rod (15) is fixedly arranged on the fixed disk (25). The rotating rod (15) passes through the filter screen (12). A plurality of blades (14) are fixedly arranged at the other end of the rotating rod (15), and the plurality of blades (14) are arranged in the inlet pipe two (6).

7. The anti-clogging hydraulic valve group according to claim 6, characterized in that, Fixed rods (13) are also symmetrically and fixedly arranged on the rotating rod (15), and the fixed rods (13) are arranged between the filter screen (12) and the inlet pipe two (6).

8. The anti-clogging hydraulic valve block according to claim 6, wherein, A fixed ring (29) is arranged on the fixed disk (25). A moving sleeve (18) is rotatably arranged in the fixed ring (29). The moving sleeve (18) is sleeved on the periphery of the rotating rod (15). The moving sleeve (18) slidably passes through the filter screen (12). A driving frame (32) is fixedly arranged at the other end of the moving sleeve (18), and the driving frame (32) is used for driving the intermittent knocking head (33) to knock the filter screen (12).

9. The anti-blocking hydraulic valve group according to claim 8, characterized in that On the inner wall of the anti-clogging shell (7), a number of stabilizing rods (16) are fixedly arranged. On one side of the number of stabilizing rods (16) close to each other, a ring (30) is fixedly arranged. On the ring (30), U-shaped fixing blocks (31) are symmetrically and fixedly arranged. A rotating shaft (39) is rotatably connected to the U-shaped fixing blocks (31). A knocking rod (37) is fixedly arranged on the rotating shaft (39). An intermittent knocking head (33) is fixedly arranged at the other end of the knocking rod (37).

10. The anti-clogging hydraulic valve block according to claim 9, characterized in that, A circular block (36) is fixedly arranged in the driving frame (32). The rotating rod (15) slidably passes through the circular block (36). Connecting rods (38) are symmetrically and fixedly arranged on the circular block (36). The other ends of the connecting rods (38) are fixedly connected to the driving frame (32). A U-shaped moving block (34) is slidably arranged on the connecting rod (38). A pushing rod (35) is hinged to the U-shaped moving block (34). The other end of the pushing rod (35) is fixedly connected to the rotating shaft (39).

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