High-response deep-sea pressure self-adaptive hydraulic pressure reversing valve

Abstract

The present application belongs to the technical field of control valve, and discloses a high-response deep-sea pressure self-adaptive water pressure reversing valve, which comprises a valve block, a pagoda joint and a high-speed on-off valve inserted into the valve block, the high-speed on-off valve comprises an electromagnetic drive assembly, and a coil is arranged in the electromagnetic drive assembly; the pagoda joint is connected to the electromagnetic drive assembly and communicates with the coil; hydraulic oil is injected into the coil through the pagoda joint; during work, the pressure of the hydraulic oil and the external pressure are self-adaptive, so that the pressure in the coil and the external pressure are balanced, and the reversing valve is adapted to different sea depth pressures. The present application realizes pressure self-compensation balance.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field related to control valve, and more particularly to a high-response deep-sea pressure self-adaptive water pressure reversing valve. BACKGROUND

[0002] The vast ocean, which accounts for 70% of the earth's area, is a treasure trove of resources for human survival and development. With the development of science and technology and the continuous upgrading of the strategic position of the ocean, exploring the ocean has become an increasingly important strategic goal. As a major technical method for exploring underwater areas, water hydraulic transmission technology has the advantages of being green, environmentally friendly, safe, reliable, and having a large power-to-mass ratio. The types and specifications of water hydraulic components are gradually improving, and the application prospects are very broad.

[0003] High-speed on-off valves are important control components in modern digital hydraulic systems. As an electro-hydraulic conversion component, it has the advantages of compact structure, convenient control, strong anti-pollution ability, and fast response. High-speed on-off valves directly use pulse signals to control the opening and closing of the valve port, generate high-frequency discrete fluid through rapid opening and closing, and achieve precise control of different flow rates. It is one of the important research directions of modern digital hydraulic technology.

[0004] The commonly used control components in the current hydraulic system are generally servo valves, but servo valves are difficult to process and have poor anti-pollution ability. The common three-position four-way reversing valve is an oil pressure type spool valve, which has low working pressure, is prone to leakage, and has slow response speed, and cannot meet the requirements of deep-sea working conditions. Therefore, how to overcome the above defects and develop a water pressure reversing valve with good sealing performance and adaptability to deep-sea high-pressure environment is an important problem that needs to be solved in deep-sea water pressure transmission. SUMMARY

[0005] In view of the above defects or improvement needs of the prior art, the present application provides a high-response deep-sea pressure self-adaptive water pressure reversing valve, which realizes the reversing control function of the hydraulic system in the full depth range by adopting a pressure self-compensation balance method.

[0006] To achieve the above-mentioned purpose, according to one aspect of the present application, a high-response deep-sea pressure self-adaptive water pressure reversing valve is provided, which comprises a valve block, a jewel adapter and a high-speed on-off valve inserted into the valve block, the high-speed on-off valve comprising an electromagnetic drive assembly, the electromagnetic drive assembly being provided with a coil; the jewel adapter is connected to the electromagnetic drive assembly and is in communication with the coil;

[0007] Hydraulic oil is injected into the coil through the jewel adapter; during operation, the pressure of the hydraulic oil and the external pressure are self-adaptive, thereby balancing the pressure inside the coil and the external pressure, and realizing the adaptation of the reversing valve to different sea depths.

[0008] Further, the reversing valve comprises a gland connected to the open end of the valve block, the valve block is provided with a second mounting hole, the high-speed on-off valve is arranged in the second mounting hole; the nipple is arranged on the gland; the electromagnetic drive assembly comprises an electromagnet shell, an electromagnet lower end cover and a coil skeleton, the coil is sleeved on the coil skeleton; the electromagnet lower end cover is connected to one end of the electromagnet shell; the nipple is in communication with the coil through a hole formed on the electromagnet shell.

[0009] Further, the electromagnetic drive assembly further comprises a pole shoe, a reset spring and an armature, the pole shoe is arranged in the coil skeleton, one end of the pole shoe is connected to the electromagnet shell, and the other end of the pole shoe is connected to the armature through the reset spring; the two ends of the armature are arranged in the coil skeleton and the electromagnet lower end cover, and the armature is arranged in space with the pole shoe.

[0010] Further, the maximum working air gap between the pole shoe and the armature is 0.43 mm; by energizing the coil to generate an electromagnetic field, the electromagnetic field generates an upward electromagnetic driving force on the armature to make the armature move towards the pole shoe, thereby making the high-speed on-off valve open.

[0011] Further, the electromagnetic drive assembly comprises a first guide sleeve, a magnetic isolation sleeve and a second guide sleeve, the first guide sleeve, the magnetic isolation sleeve and the second guide sleeve are connected together in sequence to form a ring body, one end of the ring body is sleeved on the pole shoe, and the other end of the ring body is sleeved on the armature; the electromagnetic drive assembly further comprises a limiting piece, the limiting piece is connected to one end of the pole shoe adjacent to the armature.

[0012] Further, the high-speed on-off valve further comprises a valve body spool assembly, the armature is in communication with the valve body spool assembly, when the high-speed on-off valve is opened, fluid enters the armature from the valve body spool through the electromagnet lower end cover, and enters the space between the armature and the pole shoe through the armature, so that the armature is immersed in the fluid.

[0013] Further, the valve block is provided with an inlet and an outlet; the valve body spool assembly comprises a valve body, a valve seat, a ball valve and a push rod, the valve seat is arranged in the valve body, one end of the push rod passes through the valve body and is connected to the armature, and the other end of the push rod is connected to the ball valve; the valve seat is provided with a valve hole, the ball valve is detachably connected with the valve hole; the valve hole is in communication with the inlet; the valve body is further provided with a high-speed on-off valve outlet, the high-speed on-off valve outlet is in communication with the outlet, and the high-speed on-off valve outlet is in communication with the armature.

[0014] Further, the connection and separation of the ball valve and the valve hole are realized by the on-off of the coil and the reset spring; the electromagnetic field acts on the armature, so that the armature drives the push rod to move towards the pole shoe, the push rod drives the ball valve to move towards the pole shoe, so that the ball valve is separated from the valve hole, and the high-speed on-off valve is opened; when the coil is powered off, the armature reversely moves under the action of the reset spring, so that the ball valve seals the valve hole, and the high-speed on-off valve is closed.

[0015] Further, the armature is in a cylindrical shape, a first mounting hole is formed at one end of the armature; one end of the push rod is connected to the armature through the first mounting hole; a plurality of arc-shaped grooves are further formed on the outer periphery of the armature and arranged along the axial direction of the armature, the bottom surface of the arc-shaped groove is provided with a radial hole arranged in the radial direction, and the radial hole is in communication with the first mounting hole; the arc-shaped groove is in communication with the outlet of the high-speed on-off valve.

[0016] Overall, compared with the prior art, the high-response deep-sea pressure self-adaptive water pressure reversing valve provided by the present application mainly has the following beneficial effects:

[0017] 1. By injecting hydraulic oil into the coil, the internal pressure of the coil is balanced with the external pressure during use, so that the high-speed on-off valve can adapt to the working conditions under different sea depth pressures, and pressure self-compensation balance is realized.

[0018] 2. To solve the problems of easy leakage and low response of the deep-sea water pressure valve, the ball valve structure is adopted to realize the opening and closing of the valve hole, and the reset spring is adopted to make the valve have bidirectional sealing and good sealing performance, and at the same time greatly improve the response speed during reset.

[0019] 3. The magnetic conducting piece is designed as a wet electromagnetic structure, which cancels the sealing ring between the electromagnetic and the ball valve, so that the armature is directly immersed in high-pressure water, avoiding the influence of nonlinear friction force of the sealing ring during movement.

[0020] 4. To solve the corrosion and wear of the electromagnetic moving assembly and the valve body valve core assembly caused by the corrosion of natural seawater, the magnetic conducting assembly such as the pole shoe and the armature adopts stainless soft magnetic alloy 1J117, which has the advantages of high magnetic permeability, high saturation magnetic induction strength, low coercive force, etc., and has strong corrosion resistance, can meet the use requirements of high-pressure working conditions with seawater as working medium, and has fast response speed.

[0021] 5. In the present application, four two-position two-way high-speed on-off valves are used to form a three-position four-way reversing valve, which can realize independent control between the load ports and is convenient for control and adjustment; and the water pressure reversing valve is designed as a plug-in structure, which has the advantages of good sealing, convenient installation and maintenance, etc. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of a high-response deep-sea pressure self-adaptive hydraulic pressure reversing valve provided by the present application;

[0023] Figure 2 is a structural schematic view of a high-response deep-sea pressure self-adaptive hydraulic pressure reversing valve provided by the present application; Figure 1 is a schematic view of the high-response deep-sea pressure self-adaptive hydraulic pressure reversing valve in along one angle in

[0024] Figure 3 is a schematic view of the high-response deep-sea pressure self-adaptive hydraulic pressure reversing valve in along another angle in Figure 1

[0025] Figure 4 is a structural schematic view of an armature of the deep-sea self-adaptive hydraulic pressure reversing valve in Figure 1

[0026] Figure 5 is a principle view of a hydraulic system provided by the present application.

[0027] In all the drawings, the same reference signs are used to represent the same elements or structures, wherein: 1 - valve block, 2 - first mounting screw, 3 - lower end cover, 4 - valve seat, 5 - ball valve, 6 - valve body, 7 - screw boss, 8 guide sleeve, 9 - second mounting screw, 10 - push rod, 11 - armature, 12 - first guide sleeve, 13 - magnetic isolation sleeve, 14 - limit piece, 15 - second guide sleeve, 16 - return spring, 17 - pole shoe, 18 - third mounting screw, 19 - coil, 20 - coil skeleton, 21 - cone joint, 22 - electromagnet shell, 23 - gland, 24 - water-tight connector mounting plate, 25 - wire leading hole, 26 - fourth mounting screw, 27 - electromagnet lower end cover, 28 - first combined sealing ring, 29 - second combined sealing ring, 30 - third combined sealing ring, 31 - fourth combined sealing ring, 32 - fifth combined sealing ring, 33 - sixth combined sealing ring, 34 - seventh combined sealing ring, 35 - third group of high-speed on-off valve outlet, 36 - first flow channel, 37 - fourth group of high-speed on-off valve outlet, 38 - water-tight connector, 39 - first group of high-speed on-off valve, 40 - second flow channel, 41 - second group of high-speed on-off valve, 42 - radial hole, 43 - arc-shaped groove. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0029] ​​The application provides a high-response deep-sea pressure self-adaptive hydraulic pressure reversing valve, which is suitable for use in a deep-sea high-pressure environment and has the advantages of double sealing, good sealing performance, strong anti-pollution ability, fast response speed and automatic pressure compensation, solves the problems of large machining difficulty and easy leakage of a traditional servo spool in a deep-sea high-pressure environment, and can realize the reversing control function of a hydraulic system in any deep-sea area.

[0030] Please refer to Figure 1 , the reversing valve comprises a valve block 1, a gland 23, a plurality of high-speed switch valves and a water-tight connector 38, the gland 23 is connected to one end of the valve block 1, and the water-tight connector 38 is arranged on the gland 23 and connected with the plurality of high-speed switch valves. The plurality of high-speed switch valves are respectively inserted into the valve block 1. In the embodiment, the number of the high-speed switch valves is four.

[0031] Please refer to Figure 2 and Figure 3 , the gland 23 is connected to the open end of the valve block 1 through a third mounting screw 18, a third groove is formed in the end of the gland 23 towards the valve block 1, and the third groove is used for accommodating part of the high-speed switch valves. Four tower joints 21 are further arranged on the gland 23, the four tower joints 21 are uniformly arranged around the central axis of the gland 23, and the tower joints 21 are in communication with the third groove. A wire leading hole 25 is further formed in the other end of the gland 23, the wire leading hole 25 is in communication with the third groove, and the wire leading hole 25 is used for passing the wires of the high-speed switch valves.

[0032] A fourth groove is formed in the bottom of the first groove, and a first accommodating hole is formed in the bottom of the fourth groove. The valve block 1 further comprises four radially arranged first stepped holes, the four first stepped holes are respectively in communication with the bottoms of the four second grooves, and four screw plugs 7 are arranged in the four first stepped holes. The valve block 1 further comprises a first flow channel 36, a second flow channel 40 and an outlet, the first flow channel 36 intersects with the second flow channel 40 and is arranged in a cross shape. The outlet is arranged along the axial direction of the valve block 1, and one end of the outlet is located at the intersection of the first flow channel 36 and the second flow channel 40, so that the first flow channel 36, the second flow channel 40 and the outlet are in communication. The two ends of the first flow channel 36 are respectively in communication with two second grooves, and the two ends of the second flow channel 40 are respectively in communication with the other two second grooves. The valve block 1 further comprises an inlet, and the inlet is in communication with the first accommodating hole.

[0033] In the embodiment, the first recess, the second recess and the first receiving hole form a second mounting hole, and four second mounting holes are used for receiving four height switch valves respectively.

[0034] The high-speed switch valve comprises a solenoid driving assembly and a valve body 6 spool assembly connected with each other, and the valve body 6 spool assembly comprises a valve body 6, a valve seat 4, a lower end cover 3, a first mounting screw 2, a ball valve, a guide sleeve 8 and a push rod 10.

[0035] The lower end cover 3 is arranged in the first receiving hole and connected with the valve body 6 through the first mounting screw 2, and the valve seat 4 is arranged in the valve body 6. The lower end cover 3 is provided with a communication hole. The valve body 6 is in a stepped shape, one end of which is arranged in the first recess, and the other end extends into the first receiving hole through the second recess and is connected with the lower end cover 3. The two opposite ends of the valve body 6 are respectively provided with a stepped groove and a seventh recess, and the bottom surface of the seventh recess is provided with a fourth through hole, and the fourth through hole penetrates the bottom surface of the stepped groove. The valve seat 4 is arranged in the seventh recess and the fourth through hole, and one side of the stepped groove is in communication with the first stepped hole.

[0036] The four high-speed switch valves are respectively a first group of high-speed switch valves 39, a second group of high-speed switch valves 41, a third group of high-speed switch valves and a fourth group of high-speed switch valves, and the four valve bodies 6 are respectively provided with a first group of high-speed switch valve outlets, a second group of high-speed switch valve outlets, a third group of high-speed switch valve outlets 35 and a fourth group of high-speed switch valve outlets 37, and the corresponding high-speed switch valve outlets are in communication with the stepped grooves.

[0037] The valve seat 4 is provided with a valve hole in communication with the stepped groove. The center axis of the valve hole coincides with the center axis of the communication hole and is in communication with the communication hole. Fluid enters the high-speed switch valve through the communication hole and the valve hole in sequence. The valve body 6 and the first receiving hole are provided with a sixth combined sealing ring 33, and the valve body 6 and the second recess are provided with a fifth combined sealing ring 32. The valve seat 4 and the valve body 6 are provided with a seventh combined sealing ring 34. The valve body 6 is provided with a fourth combined sealing ring 31 in one end of the first recess.

[0038] The guide sleeve 8 is arranged in the stepped groove and abuts against the stepped surface of the stepped groove and is arranged adjacent to the fourth combined sealing ring 31. The guide sleeve 8 is provided with a third through hole and a plurality of second through holes, and the second through holes are communicated with the stepped groove. The third through hole is used for the push rod 10 to pass through. In the embodiment, the central axis of the third through hole coincides with the central axis of the guide sleeve 8, and the plurality of second through holes are uniformly arranged around the third through hole. One end of the push rod 10 is connected to the ball valve, and the other end passes through the third through hole and is connected to the electromagnetic driving assembly. The ball valve is detachably connected with the valve hole.

[0039] The electromagnetic driving assembly includes an armature 11, a first guide sleeve 12, a magnetic isolation sleeve 13, a limiting sheet 14, a second guide sleeve 15, a return spring 16, a pole shoe 17, a coil 19, a coil skeleton 20, an electromagnet shell 22 and an electromagnet lower end cover 27. One end of the electromagnet shell 22 is accommodated in the third groove, and the other end is accommodated in the first groove. The end accommodated in the first groove is connected with the electromagnet lower end cover 27, and the electromagnet lower end cover 27 is connected with the valve body 6 through the second mounting screw 9. The electromagnet shell 22 is formed with a fourth groove, and the bottom surface of the fourth groove is formed with a first protrusion. The coil skeleton 20 is arranged in the fourth groove, and is formed with a first annular groove and a second accommodation hole, the central axis of the second accommodation hole coincides with the central axis of the coil skeleton 20, and the first annular groove is formed on the outer periphery of the coil skeleton 20. The coil 19 is arranged in the first annular groove and is arranged in a spaced manner between the coil 19 and the groove wall of the fourth groove. The gap between the coil 19 and the fourth groove is communicated with the corresponding pagoda joint 21.

[0040] The pole shoe 17 is in a stepped shape, and the large end is provided with a fifth groove, and the small end is provided with a second annular groove. The pole shoe 17 is arranged in the second accommodation hole, and the first protrusion is arranged in the fifth groove. The electromagnet lower end cover 27 is in a stepped shape, one end of which is accommodated in the fourth groove and is in contact with the coil skeleton 20. The electromagnet lower end cover 27 accommodated in the fourth groove is provided with a sixth groove at one end and a first through hole at the other end. The first through hole is communicated with the second through hole and the third through hole.

[0041] The first guide sleeve 12, the magnetic isolation sleeve 13 and the second guide sleeve 15 are connected in sequence to form a ring body, one end of the ring body is sleeved on the small end of the pole shoe 17, and the other end is arranged in the sixth groove. The limiting sheet 14 is arranged on one end of the pole shoe 17 adjacent to the armature 11.

[0042] Please refer to Figure 4The armature 11 is in a cylindrical shape, and a third annular groove and a first mounting hole are respectively arranged at two opposite ends of the armature 11. The armature 11 is arranged in the ring body and is spaced apart from the pole shoe 17. The reset spring 16 is arranged in the second annular groove and the third annular groove, and two ends of the reset spring 16 are respectively connected to the bottom surface of the second annular groove and the bottom surface of the third annular groove. One end of the push rod 10 is connected to the armature 11 through the first mounting hole. The outer periphery of the armature 11 is further provided with a plurality of arc-shaped grooves 43 arranged along the axial direction of the armature 11, and the bottom surface of the arc-shaped groove 43 is provided with a radial hole 42 arranged in the radial direction, which is in communication with the first mounting hole. The arc-shaped groove 43 is in communication with the first through hole.

[0043] The third combined sealing ring 30 is arranged between the electromagnet lower end cover 27 and the first guide sleeve 12, the first combined sealing ring 28 is arranged between the electromagnet shell 22 and the electromagnet lower end cover 27, and the second combined sealing ring 29 is arranged between the pole shoe 17 and the second guide sleeve 15. The water-tight plug is connected to the gland 23 through a water-tight plug mounting plate 24, and the water-tight plug mounting plate 24 is connected to the gland 23 through a fourth mounting screw 26. The water-tight plug is in communication with the wire leading hole 25.

[0044] In this embodiment, the armature 11 is attracted to the pole shoe 17 when the coil 19 is energized, the limiting piece 14 functions as a movement limiter, the coil 19 is soft sealed with the outside through the first combined sealing ring 28, the second combined sealing ring 29 and the third combined sealing ring 30, the connection or disconnection between the ball valve and the valve hole is realized by the on-off of the coil 19, and then the opening and closing of the valve hole are realized. The valve hole is sealed with the outside through the sixth combined sealing ring 33 and the seventh combined sealing ring 34.

[0045] The pagoda joint 21 is used for connecting the outside with the inside of the coil 19, and the hydraulic oil is injected into the fourth groove through the pagoda joint 21. The outside component (such as a pipe or a pressure compensation component) connected with the pagoda joint 21 transmits the outside pressure to the hydraulic oil, so as to balance the pressure inside and outside the coil 19, and make the high-speed on-off valve adapt to the working conditions under different sea depth pressures.

[0046] The arc-shaped groove 43 introduces water flow between the armature 11 and the pole shoe 17, so that the armature is completely immersed in water. The radial hole 42 introduces water flow above the push rod 10, so that the pressure of the upper and lower sides of the push rod 10 is balanced.

[0047] In the embodiment, the wires of each group of high-speed switch valves are gathered through the wire leading hole 25 and then led out through the water-tight connector 38; the ball valve and the valve seat 4 form a line seal, and the combined seal ring installed in the valve body 6 can isolate high-pressure water and low-pressure water; the magnetically conductive components such as the pole shoe 17 and the armature are made of stainless soft magnetic alloy 1J117.

[0048] The maximum working air gap between the pole shoe 17 and the armature is set to 0.43 mm, and the armature stroke is set to 0.33 mm. When working, the valve hole of the high-speed switch valve is opened, the high-pressure water enters the inside of the armature through the valve hole and the guide sleeve 8, and the armature is completely immersed in water, thereby avoiding the nonlinear friction force caused by the seal ring. The reset spring 16 is used to ensure that the valve hole of the high-speed switch valve is completely closed under the action of the compression force thereof.

[0049] When working, the coil 19 in the electromagnetic drive assembly is electrified to generate an electromagnetic field, and the armature, the pole shoe 17, the electromagnet shell 22, and the electromagnet lower end cover 27 form a closed magnetic flux loop. Under the action of the electromagnetic field, an upward electromagnetic driving force is generated on the armature to overcome the spring force of the downward reset spring 16 and thus move upward, the armature drives the ball valve upward, the valve hole of the high-speed switch valve is opened, and the first guide sleeve 12, the second guide sleeve 15, and the magnetic isolation sleeve 13 play a role in increasing the electromagnetic force. When the coil 19 is de-energized, the electromagnetic force acting on the armature disappears, and under the action of the reset force of the reset spring 16, the armature drives the ball valve to move downward, and the valve hole of the high-speed switch valve is closed. The high-speed switch valve receives a PWM control signal to convert a discrete on-off signal into a continuous flow signal, and by changing the frequency and duty cycle of the control signal, the flow rate is adjusted. By changing the electrification sequence of the four groups of high-speed switch valves, the function of a three-position four-way directional valve is achieved.

[0050] The application also provides a hydraulic system, which comprises a piston cylinder and a high-response deep-sea pressure self-adaptive water pressure directional valve as described above, and the directional valve is connected to the piston cylinder. The directional valve completes the directional function by controlling the electrification sequence of the multiple high-speed switch valves when working, thereby achieving high-precision control of the piston cylinder.

[0051] In the embodiment, please refer to Figure 5 , the four high-speed switch valves in the hydraulic system are respectively referred to as valve A1, valve A2, valve B1, and valve B2; the inlets of the valve A1 and the valve B1 are connected to the outlet of the pump P, the outlets of the valve A2 and the valve B2 are connected to the oil tank, and the outlet of the valve A1 and the inlet of the valve A2 are respectively connected to the A load port of the piston cylinder; and the outlet of the valve B1 and the inlet of the valve B2 are respectively connected to the B load port of the piston cylinder.

[0052] Those skilled in the art can easily understand that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-response deep-sea pressure adaptive hydraulic directional valve, characterized in that: The reversing valve includes a valve block, a pagoda connector, and a high-speed switching valve inserted into the valve block. The high-speed switching valve includes an electromagnetic drive assembly, and a coil is disposed within the electromagnetic drive assembly. The pagoda connector is connected to the electromagnetic drive assembly and is in communication with the coil. Hydraulic oil is injected into the coil through the pagoda connector; during operation, the pressure of the hydraulic oil adapts to the external pressure, thereby balancing the pressure inside the coil with the external pressure, thus enabling the reversing valve to adapt to different sea depth pressures. The reversing valve includes a pressure cap connected to the open end of the valve block. The valve block has a second mounting hole, and the high-speed switching valve is disposed in the second mounting hole. The electromagnetic drive assembly includes an electromagnet housing, an electromagnet lower end cover, and a coil frame. The coil is sleeved on the coil frame. The electromagnet lower end cover is connected to one end of the electromagnet housing. The electromagnetic drive assembly also includes pole shoes, a return spring, and an armature. The pole shoes are disposed within the coil frame, with one end connected to the electromagnet housing and the other end connected to the armature via the return spring. The two ends of the armature are disposed within the coil frame and the electromagnet lower end cover, and are spaced apart from the pole shoes. The high-speed switching valve also includes a valve body and valve core assembly. The armature is connected to the valve body and valve core assembly. When the high-speed switching valve is opened, fluid enters the armature from the valve body and valve core via the electromagnet lower end cover, and then enters the armature and... Between the pole shoes, the armature is immersed in fluid; the valve block has an inlet and an outlet; the valve body and valve core assembly includes a valve body, a valve seat, a ball valve, and a push rod, the valve seat is disposed in the valve body, one end of the push rod passes through the valve body and is connected to the armature, and the other end is connected to the ball valve; the valve seat has a valve hole, and the ball valve is detachably connected to the valve hole; the valve hole communicates with the inlet; the valve body also has a high-speed switching valve outlet, the high-speed switching valve outlet communicates with the outlet and is also connected to the armature; the armature is cylindrical, and one end has a first mounting hole; one end of the push rod is connected to the armature through the first mounting hole; the outer periphery of the armature also has multiple arc-shaped grooves arranged along the axial direction of the armature, and the bottom surface of the arc-shaped grooves has radially arranged radial holes, the radial holes communicating with the first mounting hole; the arc-shaped grooves communicate with the high-speed switching valve outlet.

2. The high-response deep-sea pressure adaptive hydraulic directional valve as described in claim 1, characterized in that: The pagoda connector is disposed on the pressure cover; the pagoda connector is connected to the coil through a hole opened in the electromagnet housing.

3. The high-response deep-sea pressure adaptive hydraulic directional valve as described in claim 1, characterized in that: The maximum working air gap between the pole shoe and the armature is set to 0.43 mm; by energizing the coil to generate an electromagnetic field, the electromagnetic field generates an upward electromagnetic driving force on the armature to make the armature move toward the pole shoe, thereby causing the high-speed switching valve to open.

4. The high-response deep-sea pressure adaptive water pressure reversing valve as described in claim 1, characterized in that: The electromagnetic drive assembly includes a first guide sleeve, a magnetic shielding sleeve, and a second guide sleeve, which are sequentially connected together to form a ring. One end of the ring is fitted onto the pole shoe, and the other end is fitted onto the armature. The electromagnetic drive assembly also includes a limiting piece, which is connected to the end of the pole shoe adjacent to the armature.

5. The high-response deep-sea pressure adaptive hydraulic directional valve as described in claim 1, characterized in that: The connection and separation of the ball valve and the valve orifice are achieved by the on / off switching of the coil and the return spring; the electromagnetic field acts on the armature, causing the armature to drive the push rod to move towards the pole shoe, and the push rod drives the ball valve to move towards the pole shoe, causing the ball valve to separate from the valve orifice, and the high-speed switching valve is opened; when the coil is de-energized, the armature moves in the opposite direction under the action of the return spring, causing the ball valve to seal the valve orifice, and the high-speed switching valve is closed.

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