Hydraulic valve and actuator for a hydraulic valve

Abstract

The application discloses a hydraulic valve and an actuator for the hydraulic valve, which comprises a hydraulic valve shell and an actuator shell, the actuator shell is mounted at one end of the hydraulic valve shell, and the end surface of the hydraulic valve shell is provided with a fire extinguishing mechanism, the fire extinguishing mechanism comprises a fixed square block, two fixed long rods and two connecting rods, the fixed square block is fixedly connected to the circular arc surface of the hydraulic valve shell, the two fixed long rods are fixedly connected to the back surface of the fixed square block, and the two connecting rods are fixedly connected to the top ends of the two fixed long rods. The hydraulic valve and the actuator for the hydraulic valve, through the setting of the first torsional spring, the connecting rod and the wax block, the two storage frames can be combined together through the rotation of the storage frame, the dry powder can be stored in the storage frame, the torsional force of the first torsional spring can be stabilized under the action of the wax block, the effect of stabilizing the storage frame is achieved, when the hydraulic valve leaks and a fire occurs, the wax block is melted by heat, the first torsional spring is rotated by being separated from the square vertical block.

Description

Technical Field

[0001] This invention relates to the field of hydraulic machinery, and particularly to hydraulic valves and actuators for hydraulic valves. Background Technology

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressurized oil of a distribution valve and is usually used in combination with a solenoid distribution valve. It can be used for remote control of the on / off of oil, gas and water pipeline systems in hydropower stations. It is commonly used in clamping, control and lubrication oil circuits. There are direct-acting and pilot-operated types, with pilot-operated types being more common. It is widely used in the field of hydraulic machinery.

[0003] An actuator, in a control system, converts control signals into power that drives the controlled system. Typically, the output power is proportional to the control signal, but due to the inertia and hysteresis of the device itself, this proportional relationship is non-linear. Different control systems use different actuators. For example, in electrical systems, there are AC / DC motors, stepper motors, and relay switches; in pneumatic systems, there are pneumatic cylinders and pneumatic motors; in hydraulic systems, there are hydraulic cylinders and flow motors; and in electromechanical hybrid systems, there are solenoid valves. The motion of actuators can be divided into two main categories: linear motion and rotary motion. However, hydraulic valves present some challenges during use.

[0004] According to Chinese Patent Publication No. CN110792836B, a hydraulic valve and an actuator for the hydraulic valve are disclosed. The hydraulic valve has a valve body and a valve piston that is axially movable along a first longitudinal axis of the valve body within the valve body. The valve body is configured with a supply port for supplying hydraulic fluid, at least one working port, and at least one tank port for discharging hydraulic fluid. The valve piston is movable by means of an electromagnetic actuator of the hydraulic valve. The valve body constitutes a hydraulic part, and the actuator constitutes a magnetic part of the hydraulic valve. A separating element is provided between the hydraulic part and the magnetic part. According to the invention, the separating element is configured for fluid communication between the hydraulic part and the magnetic part, and vice versa.

[0005] For example, Chinese Patent Publication No. CN106439166B discloses a hydraulic valve having a valve sleeve and a valve piston axially movable along the longitudinal axis of the valve sleeve. The hydraulic valve has a supply connector for supplying hydraulic fluid, at least one working connector, and at least one tank discharge connector for discharging hydraulic fluid. The valve piston is movable by means of an electromagnetic actuator of the hydraulic valve, and the valve sleeve forms a hydraulic component while the actuator forms a magnetic component of the hydraulic valve. According to the invention, a sealing element is arranged in the valve sleeve to spatially separate the magnetic component and the hydraulic component, and the valve piston is configured such that the end of the piston rod extends out of the sealing element.

[0006] 1. If the hydraulic valve is not properly sealed, leakage is likely to occur. If external leakage occurs, the oil leaked into the external environment can easily cause a fire. Existing hydraulic valves are not convenient for timely extinguishing of the fire, and their safety is not high enough.

[0007] 2. If the hydraulic valve leaks, the oil will accumulate on the surface of the hydraulic valve body and drip continuously. It is inconvenient for the staff to collect this oil. If it mixes with dust in the air, it will also easily make the surface of the hydraulic valve body dirty.

[0008] 3. When a hydraulic valve leaks, the leaking oil easily attracts dust, which in turn increases the viscosity of the oil, causing it to adhere firmly to the hydraulic valve body, making cleaning inconvenient. Summary of the Invention

[0009] The purpose of this invention is to provide a hydraulic valve and an actuator for the hydraulic valve, in order to solve the problems mentioned in the background art, such as the inconvenience of timely extinguishing of fires, insufficient safety, difficulty for workers to collect dripping oil, and the tendency of leaked oil to attract dust, thereby increasing the viscosity of the oil.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic valve and an actuator for the hydraulic valve, comprising a hydraulic valve housing and an actuator housing, wherein the actuator housing is installed at one end of the hydraulic valve housing, and the end face of the hydraulic valve housing is provided with a fire extinguishing mechanism, the fire extinguishing mechanism comprising a fixed block, two fixed long rods and two connecting rods, the fixed block being fixedly connected to the arc surface of the hydraulic valve housing, the two fixed long rods being fixedly connected to the back of the fixed block, the two connecting rods being fixedly connected to the top ends of the two fixed long rods respectively, the arc surface of the two connecting rods being provided with a storage frame, the storage frame being rotatably connected to the connecting rod, the arc surface of the connecting rod being fitted with a first torsion spring, the two ends of the first torsion spring being fixedly connected to the storage frame and the connecting rod respectively, the side walls of the two storage frames being fixedly connected with two square blocks, the four square blocks being grouped in pairs, the side of the square blocks in the same group that is far from each other being fitted with a wax block, and the end face of the fixed block being provided with an auxiliary mechanism.

[0011] As a preferred embodiment of the present invention, the auxiliary mechanism includes two fixed rods and two rotating tubes. The two fixed rods are fixedly connected to the end faces of the fixed block. The two rotating tubes are respectively sleeved on the arc surfaces of the two fixed rods. The rotating tubes are rotatably connected to the fixed rods. Connecting plates are fixedly connected to the arc surfaces of the two rotating tubes. Arc-shaped clamping plates are fixedly connected to the sides of the two connecting plates that are close to each other. A second torsion spring is sleeved on the arc surface of the fixed rod. The two ends of the second torsion spring are fixedly connected to the fixed rod and the rotating tube, respectively. A sponge ring is sleeved on the arc surface of the hydraulic valve housing. Limiting grooves are formed on the inner annular surfaces of the two arc-shaped clamping plates. A guide tube is connected to the arc-shaped clamping plates via the limiting grooves. A storage bottle is connected to the end of each guide tube away from the arc-shaped clamping plate. A sleeve is sleeved on the arc surface of the storage bottle. The sleeve is fixedly connected to the side wall of the hydraulic valve housing.

[0012] As a preferred embodiment of the present invention, each of the two storage frames is fixedly connected to a concave plate on the side away from each other, and the inner wall of the concave plate is provided with a square cover plate, which is hinged to the concave plate.

[0013] As a preferred embodiment of the present invention, the cross-section of the wax block is concave, and the square cover plate is located above the storage frame.

[0014] In a preferred embodiment of the present invention, the sponge ring is located between two arc-shaped clamps, and the guide tube is a rubber tube.

[0015] As a preferred embodiment of the present invention, the sleeve is a rubber sleeve, and the size of the sleeve is smaller than the size of the storage bottle.

[0016] As a preferred embodiment of the present invention, the side wall of the hydraulic valve housing is provided with a dust removal mechanism, the dust removal mechanism including a small fan, an air outlet duct and a connecting pipe, the small fan is fixedly installed on the side wall of the hydraulic valve housing, the air outlet duct is connected to the air outlet of the small fan, the connecting pipe is connected to one end of the air outlet duct, the arc surface of the connecting pipe is provided with a plurality of circular leakage holes, the connecting pipe is sleeved on the arc surface of the sponge ring, and the sponge ring is bonded to the connecting pipe.

[0017] As a preferred embodiment of the present invention, the air inlet of the small fan is fixedly connected to a filter screen, the hydraulic valve housing is fixedly connected to a support plate on the side near the small fan, a circular column is fixedly connected to the end face of the support plate, a double-sided adhesive tape tube is sleeved on the arc surface of the circular column, double-sided adhesive tape is adhered to the double-sided adhesive tape tube, a concave frame is fixedly connected to the front of the small fan, a rectangular plate is provided on the inner wall of the concave frame, the rectangular plate is rotatably connected to the concave frame, and a plurality of protrusions are fixedly connected to the end face of the rectangular plate.

[0018] As a preferred embodiment of the present invention, a plurality of the protrusions are evenly distributed on the end face of the rectangular plate, and the protrusions are conical in shape.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention, by setting up a first torsion spring, a connecting rod, a storage frame, and a wax block, allows two storage frames to be joined together by rotating the storage frame, facilitating the storage of dry powder. Under the action of the wax block, the torsional force of the first torsion spring is stabilized, achieving a stabilizing effect on the storage frame. When a fire occurs due to a hydraulic valve leak, the wax block melts upon heating, detaches from the square block, and causes the first torsion spring to rotate. With the rotational force of the first torsion spring, the two storage frames open, allowing the falling dry powder to cover the fire, minimizing or even extinguishing the fire, and reducing losses to a certain extent. It also improves safety, extinguishes fires faster, and has a better effect. Furthermore, by rotating the square cover, the square cover can cover the storage frame, thereby covering the dry powder inside the storage frame, minimizing the entry of moisture, and preventing the dry powder from getting wet.

[0021] 2. This invention, by incorporating a second torsion spring, an arc-shaped clamping plate, a guide pipe, a storage bottle, and a sponge ring, allows the sponge ring to be placed over a leaky area on the hydraulic valve. When a leak occurs in the hydraulic valve housing, the leaking oil is absorbed by the sponge ring, temporarily storing the oil within it. The arc-shaped clamping plate then compresses the sponge ring, causing it to deform and forcing the oil out, which then flows through the guide pipe into the storage bottle. This effectively collects the leaked oil, minimizing the risk of oil dripping onto the hydraulic valve housing and contaminating it. Furthermore, the torsional force of the first torsion spring facilitates the rotation of the arc-shaped clamping plate, allowing for repeated compression of the sponge ring.

[0022] 3. This invention incorporates a small fan, connecting pipe, filter screen, double-sided adhesive tape tube, rectangular plate, and protrusions. By attaching the double-sided adhesive tape to the filter screen, the rotation of the rectangular plate presses the protrusions onto the tape, creating small holes. This allows the small fan to draw in air, which passes over the tape surface and adheres to dust particles, minimizing the dust content. The tape can also be easily peeled off the filter screen for cleaning. Furthermore, the small fan's airflow through the connecting pipe targets areas prone to oil leakage in hydraulic valves, reducing dust around these areas and improving the cleanliness of the valve housing. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 Partial structural diagram;

[0025] Figure 3 For the present invention Figure 2 Partial structural diagram;

[0026] Figure 4 For the present invention Figure 1 A partial structural diagram of the fixed block and storage bottle in the middle;

[0027] Figure 5 For the present invention Figure 1 A partial structural diagram of a small to medium-sized wind turbine;

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle.

[0029] In the diagram: 1. Hydraulic valve housing; 2. Fire extinguishing mechanism; 21. Fixed block; 22. Fixed long rod; 23. Connecting rod; 24. Storage frame; 25. First torsion spring; 26. Square upright block; 27. Wax block; 28. Concave plate; 29. ​​Square cover plate; 3. Auxiliary mechanism; 31. Fixed rod; 32. Rotating tube; 33. Connecting plate; 34. Arc-shaped clamp; 35. Second torsion spring; 36. Sponge ring; 37. Limiting square groove; 38. Guide tube; 39. Storage bottle; 310. Sleeve; 4. Dust removal mechanism; 41. Small fan; 42. Air outlet duct; 43. Connecting tube; 44. Filter screen; 45. Support plate; 46. Circular column; 47. Double-sided adhesive tape tube; 48. Concave frame; 49. Rectangular plate; 410. Protrusion; 411. Circular leakage hole; 5. Actuator housing. Detailed Implementation

[0030] 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, and 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.

[0031] Please see Figure 1-6 This invention provides a technical solution for a hydraulic valve and an actuator for the hydraulic valve:

[0032] according to Figure 1 , Figure 2 and Figure 3As shown, a hydraulic valve and an actuator for the hydraulic valve include a hydraulic valve housing 1 and an actuator housing 5. The actuator housing 5 is installed at one end of the hydraulic valve housing 1. A fire extinguishing mechanism 2 is provided on the end face of the hydraulic valve housing 1. The fire extinguishing mechanism 2 includes a fixed block 21, two fixed long rods 22, and two connecting rods 23. The fixed block 21 is fixedly connected to the arc surface of the hydraulic valve housing 1. The two fixed long rods 22 are both fixedly connected to the back of the fixed block 21. The two connecting rods 23 are respectively fixedly connected to the top ends of the two fixed long rods 22. The arc surface of each of the two connecting rods 23 is provided with a storage frame 24. The storage frame 24 is rotatably connected to the connecting rod 23. The arc surface of the connecting rod 23... A first torsion spring 25 is fitted, and the two ends of the first torsion spring 25 are fixedly connected to the storage frame 24 and the connecting rod 23 respectively. Two square blocks 26 are fixedly connected to the side walls of the two storage frames 24. The four square blocks 26 are in pairs. A wax block 27 is fitted on the side of the square blocks 26 in the same group that is far away from each other. The wax block 27 is an object that melts when heated, such as a candle. An auxiliary mechanism 3 is provided on the end face of the fixed block 21. A concave plate 28 is fixedly connected to the side of the two storage frames 24 that is far away from each other. A square cover plate 29 is provided on the inner wall of the concave plate 28. The square cover plate 29 is hinged to the concave plate 28. The cross section of the wax block 27 is concave. The square cover plate 29 is located above the storage frame 24.

[0033] like Figure 1 and Figure 4 As shown, the auxiliary mechanism 3 includes two fixed rods 31 and two rotating tubes 32. The two fixed rods 31 are fixedly connected to the end face of the fixed block 21. The two rotating tubes 32 are respectively sleeved on the arc surfaces of the two fixed rods 31, and are rotatably connected to the fixed rods 31. Connecting plates 33 are fixedly connected to the arc surfaces of the two rotating tubes 32. Arc-shaped clamping plates 34 are fixedly connected to the sides of the two connecting plates 33 that are close to each other. A second torsion spring 35 is sleeved on the arc surface of the fixed rod 31. The two ends of the second torsion spring 35 are fixedly connected to the fixed rod 31 and the rotating tube 32, respectively. The hydraulic valve housing 1... A sponge ring 36 is fitted onto the arc surface. Limiting square grooves 37 are provided on the inner ring surfaces of the two arc-shaped clamps 34. The arc-shaped clamps 34 are connected to guide tubes 38 through the limiting square grooves 37. The ends of the two guide tubes 38 away from the arc-shaped clamps 34 are connected to storage bottles 39. One end of the storage bottle 39 is threaded with a bottle cap. A sleeve 310 is fitted onto the arc surface of the storage bottle 39. The sleeve 310 is fixedly connected to the side wall of the hydraulic valve housing 1. The sponge ring 36 is located between the two arc-shaped clamps 34. The guide tubes 38 are rubber tubes, and the sleeves 310 are rubber sleeves. The size of the sleeve 310 is smaller than the size of the storage bottle 39.

[0034] like Figure 1 , Figure 5 and Figure 6As shown, a dust removal mechanism 4 is provided on the side wall of the hydraulic valve housing 1. The dust removal mechanism 4 includes a small fan 41, an exhaust duct 42, and a connecting pipe 43. The small fan 41 is fixedly installed on the side wall of the hydraulic valve housing 1. The exhaust duct 42 is connected to the exhaust port of the small fan 41. The connecting pipe 43 is connected to one end of the exhaust duct 42. The connecting pipe 43 is an elastic hose that can be squeezed and deformed. Multiple circular holes 411 are opened on the arc surface of the connecting pipe 43. The connecting pipe 43 is sleeved on the arc surface of the sponge ring 36. The sponge ring 36 is bonded to the connecting pipe 43. The suction port of the small fan 41 is fixedly connected to... A filter screen 44 and a hydraulic valve housing 1 are fixedly connected to a support plate 45 on the side near the small fan 41. A circular column 46 is fixedly connected to the end face of the support plate 45. A double-sided adhesive tape tube 47 is fitted on the arc surface of the circular column 46. Double-sided adhesive tape is adhered to the double-sided adhesive tape tube 47. A concave frame 48 is fixedly connected to the front of the small fan 41. A rectangular plate 49 is provided on the inner wall of the concave frame 48. The rectangular plate 49 is rotatably connected to the concave frame 48. Multiple protrusions 410 are fixedly connected to the end face of the rectangular plate 49. The multiple protrusions 410 are evenly distributed on the end face of the rectangular plate 49. The protrusions 410 are conical in shape.

[0035] Working principle of this invention:

[0036] S1. To prevent a fire caused by leakage in the hydraulic valve housing 1, the operator can first push the two storage frames 24 towards each other. The storage frames 24 will rotate along the arc surface of the connecting rod 23. As the storage frames 24 rotate, they will drive the first torsion spring 25 to rotate, and the first torsion spring 25 will be in a torsional state until the two storage frames 24 are pressed together. At this time, the two opposing square blocks 26 will also be pressed together. Then, the operator can insert the wax block 27 into the two opposing square blocks 26. Since the cross-section of the wax block 27 is concave, the wax block 27 will stabilize the two square blocks 26, thereby achieving the effect of stabilizing the elastic force of the first torsion spring 25. Then, the operator can pour an appropriate amount of dry powder into the two storage frames 24, and then push the square cover plate 29. The square cover plate 29 will move along the concave plate 28. As the inner wall rotates, the square cover 29 eventually covers the storage frame 24, shielding the dry powder inside and minimizing the entry of moisture from the air. This improves the moisture-proof effect of the storage frame 24 and increases the dryness of the powder inside. When a leak in the hydraulic valve housing 1 causes a fire, the wax block 27, being a heat-melting object like a candle, will melt and detach from the surface of the square block 26. When both wax blocks 27 are completely detached from the surface of the square block 26, the first torsion spring 25 will quickly rebound, causing the two storage frames 24 to rotate away from each other. The dry powder inside the storage frames 24 will then spill out, covering the fire and minimizing or even extinguishing it, thus reducing losses and improving safety to some extent.

[0037] S2. To facilitate the collection of leaked oil, workers can place the sponge ring 36 on the hydraulic valve housing 1 at locations prone to leakage. When a leak occurs in the hydraulic valve housing 1, the leaked oil will be absorbed by the sponge ring 36. When the oil in the sponge ring 36 has been absorbed to a certain extent, the two arc-shaped clamps 34 can be pushed towards each other. At this time, the arc-shaped clamps 34 will drive the rotating tube 32 to rotate along the arc surface of the fixed rod 31. The second torsion spring 35 will then be torsionated due to the rotation of the rotating tube 32, and the two arc-shaped clamps 34 will be pressed against the sea... On the cotton ring 36, the sponge ring 36 is deformed. After the sponge ring 36 is deformed, the oil inside will overflow and drip down the arc-shaped clamp 34. It will eventually flow into the limiting square groove 37 and flow into the storage bottle 39 through the guide pipe 38, thus achieving the effect of collecting the oil. Then the operator can loosen the two arc-shaped clamps 34. The twisted second torsion spring 35 will quickly rebound, causing the two arc-shaped clamps 34 to separate from the sponge ring 36, so that the sponge ring 36 can return to its initial state. If it is necessary to process the oil in the storage bottle 39, the storage bottle 39 can be directly pulled out from the sleeve 310.

[0038] S3. To reduce dust accumulation around the leaking areas of the hydraulic valve housing 1, the operator can tear off a certain length of double-sided adhesive tape from the double-sided tape roll 47 and stick it onto the filter screen 44. Then, the rectangular plate 49 can be pushed towards the small blower 41. As the rectangular plate 49 rotates along the concave frame 48, it will move the protrusion 410 until the protrusion 410 contacts the double-sided adhesive tape and punctures its surface. The operator can then start the small blower 41. During the air intake process, the air drawn in by the small blower 41 will enter through the filter screen 44. As air passes through filter 44, double-sided tape adheres to the dust in the air, minimizing the dust content. The tape can be easily peeled off the filter 44 surface for cleaning. The air then passes through exhaust duct 42 and is blown out through the circular holes 411 on the surface of connecting pipe 43. The annular distribution of the circular holes 411 allows for wider airflow dispersion, improving the cleanliness around areas prone to leakage in the hydraulic valve housing 1.

[0039] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0040] In this invention, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of innovation of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic valve and an actuator for the hydraulic valve, comprising a hydraulic valve housing (1) and an actuator housing (5), characterized in that: The actuator housing (5) is installed at one end of the hydraulic valve housing (1). A fire extinguishing mechanism (2) is provided on the end face of the hydraulic valve housing (1). The fire extinguishing mechanism (2) includes a fixed block (21), two fixed long rods (22), and two connecting rods (23). The fixed block (21) is fixedly connected to the arc surface of the hydraulic valve housing (1). The two fixed long rods (22) are both fixedly connected to the back of the fixed block (21). The two connecting rods (23) are respectively fixedly connected to the top ends of the two fixed long rods (22). The arc surface of the connecting rod (23) is provided with a storage frame (24). The arc surface of the connecting rod (23) is fitted with a first torsion spring (25). The two ends of the first torsion spring (25) are fixedly connected to the storage frame (24) and the connecting rod (23) respectively. The side walls of the two storage frames (24) are fixedly connected with two square blocks (26). The four square blocks (26) are grouped in pairs. The side of the square blocks (26) in the same group that is far away from each other is fitted with a wax block (27). The end face of the fixed block (21) is provided with an auxiliary mechanism (3).

2. The hydraulic valve and actuator for the hydraulic valve according to claim 1, characterized in that: The auxiliary mechanism (3) includes two fixed rods (31) and two rotating tubes (32). The two fixed rods (31) are fixedly connected to the end face of the fixed block (21). The two rotating tubes (32) are respectively sleeved on the arc surface of the two fixed rods (31). The arc surface of the two rotating tubes (32) is fixedly connected to the connecting plate (33). The two connecting plates (33) are fixedly connected to the side of each other with an arc-shaped clamp (34). The arc surface of the fixed rod (31) is sleeved with a second torsion spring (35). The two ends of the second torsion spring (35) are... The hydraulic valve housing (1) is fixedly connected to the fixed rod (31) and the rotating tube (32) respectively. The arc surface of the hydraulic valve housing (1) is fitted with a sponge ring (36). The inner ring surfaces of the two arc-shaped clamps (34) are provided with limiting square grooves (37). The arc-shaped clamps (34) are connected to the guide tubes (38) through the limiting square grooves (37). The ends of the two guide tubes (38) away from the arc-shaped clamps (34) are connected to the storage bottle (39). The arc surface of the storage bottle (39) is fitted with a sleeve (310). The sleeve (310) is fixedly connected to the side wall of the hydraulic valve housing (1).

3. The hydraulic valve and actuator for the hydraulic valve according to claim 1, characterized in that: Each of the two storage frames (24) is fixedly connected to a concave plate (28) on the side away from each other, and the inner wall of the concave plate (28) is provided with a square cover plate (29).

4. The hydraulic valve and actuator for the hydraulic valve according to claim 3, characterized in that: The cross-section of the wax block (27) is concave, and the square cover plate (29) is located above the storage frame (24).

5. The hydraulic valve and actuator for the hydraulic valve according to claim 2, characterized in that: The sponge ring (36) is located between two arc-shaped clamps (34), and the guide tube (38) is a rubber tube.

6. The hydraulic valve and actuator for the hydraulic valve according to claim 2, characterized in that: The sleeve (310) is a rubber sleeve, and the size of the sleeve (310) is smaller than the size of the storage bottle (39).

7. The hydraulic valve and actuator for the hydraulic valve according to claim 1, characterized in that: The side wall of the hydraulic valve housing (1) is provided with a dust removal mechanism (4). The dust removal mechanism (4) includes a small fan (41), an air outlet pipe (42), and a connecting pipe (43). The small fan (41) is fixedly installed on the side wall of the hydraulic valve housing (1). The air outlet pipe (42) is connected to the air outlet of the small fan (41). The connecting pipe (43) is connected to one end of the air outlet pipe (42). The arc surface of the connecting pipe (43) is provided with multiple circular leakage holes (411). The connecting pipe (43) is sleeved on the arc surface of the sponge ring (36).

8. The hydraulic valve and actuator for the hydraulic valve according to claim 7, characterized in that: The air inlet of the small fan (41) is fixedly connected to a filter screen (44). The hydraulic valve housing (1) is fixedly connected to a support plate (45) on the side near the small fan (41). A circular column (46) is fixedly connected to the end face of the support plate (45). A double-sided adhesive tape tube (47) is sleeved on the arc surface of the circular column (46). A concave frame (48) is fixedly connected to the front of the small fan (41). A rectangular plate (49) is provided on the inner wall of the concave frame (48). A plurality of protrusions (410) are fixedly connected to the end face of the rectangular plate (49).

9. The hydraulic valve and actuator for the hydraulic valve according to claim 8, characterized in that: Multiple bumps (410) are evenly distributed on the end face of the rectangular plate (49), and the bumps (410) are conical in shape.

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