A large flow multi-way valve group and hydraulic system

Abstract

The application discloses a large-flow multi-way valve group and a hydraulic system, which comprises a valve body, an oil inlet path and an oil return path are arranged on the valve body, and further comprises a pressure cavity arranged in the valve body and communicated with the oil inlet path, a pressure relief bin connected with the pressure cavity and provided with a backflow hole communicated with the oil return path, a core body arranged in the pressure cavity and provided with a balance cavity communicated with the pressure relief bin and an interaction hole communicated between the pressure cavity and the balance cavity, and a movable block elastically arranged in the pressure relief bin and used for shielding the backflow hole and provided with a conical part embedded in one end of the balance cavity. The backflow hole is arranged to communicate the oil return path with the pressure relief bin, when the thrust on the conical part exceeds the elastic force on the movable block, the movable block drives the conical part to move away from the core body, at this time, the movable block cancels shielding on part of the backflow hole, so that the oil inlet path, the pressure cavity, the balance cavity, the pressure relief bin and the oil return path are communicated with each other.

Description

Technical Field

[0001] This invention relates to the field of hydraulic valve assembly technology, specifically to a high-flow multi-way valve assembly and hydraulic system. Background Technology

[0002] Hydraulic valves are automated components operated by pressurized oil, controlling the opening and closing of pipeline systems by regulating fluid pressure, flow rate, and direction. Multi-way valve manifolds are hydraulic control devices that integrate multiple directional valves. They are primarily used to simultaneously control the movement direction and sequence of actions of multiple actuators (such as hydraulic cylinders and hydraulic motors) in mechanical equipment, achieving centralized control of the hydraulic system. Through modular design, multiple valve bodies are combined together, and auxiliary valves such as safety valves, overload valves, replenishing valves, and check valves can be integrated to perform various functions such as fluid distribution, pressure regulation, and speed control.

[0003] In existing multi-way valve assemblies, especially those with high flow rates, the oil pressure in the oil circuit is balanced by an additional oil chamber connected to the oil circuit, with a movable elastic block installed in this oil chamber. However, under the condition of high flow rate oil, the oil chamber cannot be made infinitely large, so the oil entering the oil chamber needs to be discharged in time. Therefore, there is an urgent need for a high flow rate multi-way valve assembly and hydraulic system to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a high-flow-rate multi-way valve assembly and hydraulic system to overcome the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-flow-rate multi-way valve assembly includes a valve body with an oil inlet path and an oil return path, and further includes: a pressure chamber disposed within the valve body and connected to the oil inlet path; a pressure relief chamber connected to the pressure chamber, with a reflux hole on its side connected to the oil return path; a core disposed within the pressure chamber, with a balance chamber connected to the pressure relief chamber inside, and an interlocking hole on its side connecting the pressure chamber and the balance chamber; and a movable block elastically disposed within the pressure relief chamber to block the reflux hole, with a tapered component embedded at one end of the balance chamber.

[0006] Preferably, an adjusting block is movably disposed inside the pressure relief chamber, a first elastic element is connected between the movable block and the adjusting block, and an adjusting screw threaded through the pressure relief chamber is coaxially connected to the end of the adjusting block away from the first elastic element.

[0007] Preferably, the balance chamber is elastically provided with a pressure accumulator opposite to the conical member, and the pressure relief chamber is provided with a limiting component for limiting the movable block. The limiting component cancels the limiting when the pressure accumulator has the maximum force.

[0008] Preferably, the limiting component includes a limiting post elastically movable on the inner wall of the pressure relief chamber, a squeezing rod movably disposed within the valve body, a squeezing element disposed on the side wall of the limiting post, one end of the squeezing rod wedge-shapedly engaging with the squeezing element, a trigger rod movably disposed within the core body that moves synchronously with the squeezing rod, a sliding column movably connected to the end of the trigger rod away from the squeezing rod, and a magnetic suction element matching the sliding column disposed on the pressure accumulator.

[0009] Preferably, the trigger rod is provided with an inclined slide groove, and the slide column is provided with a sliding pin that is movably connected to the inclined slide groove.

[0010] Preferably, the movable block is provided with a spiral groove that matches the limiting post. The cross-section of the spiral groove is sawtooth-shaped, and the inclined surface is set towards the limiting post. The valve body is provided with a constant speed component that drives the limiting post to rotate.

[0011] Preferably, the constant speed assembly includes a rotating component rotatably disposed within the valve body, a limiting post movably passing through the rotating component along the radial direction of the rotating component, and a micro motor for driving the rotating component to rotate is disposed on the valve body.

[0012] Preferably, the rotating component is provided with a guide sleeve that matches the extrusion rod, and a ring body coaxial with the rotating component is movably disposed in the valve body. One side of the ring body is fixedly connected to the extrusion rod, and the other side of the ring body abuts against the trigger rod.

[0013] Preferably, the micro motor is controlled by a servo system and is triggered after the piston is pushed by high-pressure oil to drive the rotating component for a certain period of time.

[0014] A hydraulic system includes the aforementioned high-flow-rate multi-way valve group, and also includes a hydraulic pump and an oil tank connected to the valve body via pipelines. In the above technical solution, the beneficial effects of the present invention are: This high-flow multi-way valve assembly connects the return oil path to the pressure relief chamber through a reflux orifice. When the pressure of the oil filling the pressure chamber increases, the pressure of the oil entering the balance chamber increases synchronously, thereby applying a thrust to the conical component. When the thrust on the conical component exceeds the elastic force on the piston block, the piston block drives the conical component to move away from the core. At this time, the piston block removes part of the reflux orifice, thus enabling the oil inlet path, pressure chamber, balance chamber, pressure relief chamber, and return oil path to be interconnected, achieving oil pressure relief while allowing the oil to automatically flow back to the oil tank.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0016] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side cross-sectional view of the present invention. Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a top view of a partial cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 6 For the present invention Figure 4 Enlarged structural diagram at point C; Figure 7 This is a schematic diagram of the internal structure of the pressure chamber and pressure relief chamber of the present invention; Figure 8 This is a schematic diagram of the limiting component structure of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Valve body; 2. Oil inlet path; 3. Oil return path; 4. Pressure chamber; 5. Pressure relief chamber; 6. Return hole; 7. Core; 8. Balance chamber; 9. Interchange hole; 10. Movable block; 11. Conical component; 12. Adjusting block; 13. First elastic component; 14. Adjusting screw; 15. Accumulator; 16. Limiting post; 17. Extrusion rod; 18. Extrusion component; 19. Trigger rod; 20. Sliding column; 21. Magnetic component; 22. Inclined slide groove; 23. Sliding pin; 24. Spiral groove; 25. Rotating component; 26. Micro motor; 27. Guide sleeve; 28. Ring body; 29. ​​Second elastic component; 30. Third elastic component; 31. Fourth elastic component. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure. Please see Figure 1-8 The present invention provides a high-flow-rate multi-way valve assembly and hydraulic system, comprising a valve body 1, wherein an oil inlet path 2 and an oil return path 3 are provided on the valve body 1, and further comprising: a pressure chamber 4, which is disposed in the valve body 1 and communicates with the oil inlet path 2; a pressure relief chamber 5, which is connected to the pressure chamber 4 and has a return hole 6 on its side that communicates with the oil return path 3; a core 7, which is disposed in the pressure chamber 4 and has a balance chamber 8 that communicates with the pressure relief chamber 5, and has an interactive hole 9 on its side that communicates with the pressure chamber 4 and the balance chamber 8; and a movable block 10, which is elastically disposed in the pressure relief chamber 5 to block the return hole 6, and has a tapered member 11 embedded in one end of the balance chamber 8.

[0021] Specifically, the valve body 1 integrates a control oil circuit, a valve core, and a control unit. The control unit can be a hand-operated lever or an electromagnetic controller, which drives the target valve core to adjust the opening and closing of the working oil circuit and its guidance. The valve body 1 is provided with an oil inlet and an oil return port, which connect to the hydraulic cylinder and the oil tank externally, and to the oil inlet path 2 and the oil return path 3 internally, respectively. The valve body 1 is also provided with multiple working interfaces for connecting to external hydraulic drive units. The pressure chamber 4 is filled with oil, and its pressure is balanced with the oil in the oil inlet path 2. The pressure relief chamber 5 is divided into two independent sections by the movable block 10. The section closer to the pressure chamber 4 is used to interact with the pressure chamber 4, while the other section remains isolated from the pressure chamber 4. The oil return path 3 is set as an annular or arc-shaped cavity in the part connecting to the pressure relief chamber 5, and multiple return holes 6 are provided. The core 7 is coaxially arranged in the pressure chamber 4, and a U-shaped cross-section cavity is formed between the outer wall of the core 7 and the inner wall of the pressure chamber 4. The balancing chamber 8 is cylindrical and located at the center of the core 7, with one end extending into the pressure relief chamber 5. Multiple interconnecting holes 9 are provided, unobstructed by other structures, ensuring continuous communication between the pressure chamber 4 and the balancing chamber 8, maintaining consistent oil pressure. The piston block 10 is cylindrical and matches the interior of the pressure relief chamber 5. The conical member 11 has a gradually decreasing diameter towards the end near the balancing chamber 8, with the diameter of the end of the conical member 11 connecting to the piston block 10 being larger than the inner diameter of the balancing chamber 8. In practical use, when the pressure of the oil filling the pressure chamber 4 increases, the pressure of the oil entering the balance chamber 8 increases synchronously, thereby applying a thrust to the conical part 11. When the thrust on the conical part 11 exceeds the elastic force on the movable block 10, the movable block 10 drives the conical part 11 to move away from the core 7. At this time, the movable block 10 cancels the blocking of part of the return hole 6, thereby enabling the oil inlet path 2, pressure chamber 4, balance chamber 8, pressure relief chamber 5 and return oil path 3 to be interconnected, realizing oil pressure relief while allowing the oil to automatically flow back to the oil tank.

[0022] Compared with the prior art, the high-flow multi-way valve group proposed in this embodiment of the invention connects the return oil path 3 and the pressure relief chamber 5 by setting a return hole 6. When the pressure of the oil filling the pressure chamber 4 increases, the pressure of the oil entering the balance chamber 8 increases synchronously, thereby applying a thrust to the conical member 11. When the thrust on the conical member 11 exceeds the elastic force on the movable block 10, the movable block 10 drives the conical member 11 to move away from the core 7. At this time, the movable block 10 cancels the blocking of part of the return hole 6, thereby enabling the oil inlet path 2, pressure chamber 4, balance chamber 8, pressure relief chamber 5 and return oil path 3 to be interconnected, realizing oil pressure relief while allowing the oil to automatically flow back to the oil tank.

[0023] As a preferred technical solution of this embodiment, an adjusting block 12 is movably arranged inside the pressure relief chamber 5. A first elastic element 13 is connected between the movable block 10 and the adjusting block 12. An adjusting screw 14, which is threaded through the pressure relief chamber 5, is coaxially connected to the end of the adjusting block 12 away from the first elastic element 13. Specifically, the adjusting block 12 moves axially inside the pressure relief chamber 5. The first elastic element 13 is preferably a spring, with its two ends abutting or connecting the movable block 10 and the adjusting block 12, respectively. The adjusting block 12 achieves a movable adjustment position by rotating the adjusting screw 14 and engaging a threaded feed action with the pressure relief chamber 5, thereby adjusting the pre-tightening thrust of the first elastic element 13 on the movable block 10.

[0024] In another embodiment of the present invention, a pressure accumulator 15 is elastically provided in the balance chamber 8, opposite to the conical member 11, and a limiting component for limiting the movable block 10 is provided in the pressure relief chamber 5. The limiting component cancels the limiting when the pressure accumulator 15 has the maximum stored force. Specifically, a second elastic member 29 is connected to the end of the pressure accumulator 15 away from the conical member 11. The second elastic member 29 is preferably a spring, which keeps pushing the pressure accumulator 15 close to the interaction hole 9. When the oil pressure in the balance chamber 8 increases, the pressure accumulator 15 moves away from the interaction hole 9, and the second elastic member 29 is compressed and deformed and stores elastic potential energy. The limiting component limits the movable block 10 to the position corresponding to the conical member 11 on the movable block 10, keeping one end of the balance chamber 8 blocked, so that the balance chamber 8 and the pressure relief chamber 5 are not connected. In practical use, when the pressure accumulator 15 has accumulated maximum force, the limit component is triggered to cancel the limit. At this time, the pressure in the balance chamber 8 immediately pushes the conical part 11 to move, thereby connecting the balance chamber 8 with the pressure relief chamber 5. The pressure at the end of the balance chamber 8 connected to the pressure relief chamber 5 drops sharply, and the pressure on the side of the pressure accumulator 15 near the conical part 11 also drops sharply. Then the elastic potential energy of the second elastic element 29 is released, and the pressure accumulator 15 moves closer to the interaction hole 9, thereby transferring the pressure it receives to the conical part 11. As a result, when the conical part 11 opens the connection between the balance chamber 8 and the pressure relief chamber 5, the gap that opens instantaneously expands, making it easier for the oil to flow, resulting in a significant pressure relief effect. It can also reduce the fluid friction intensity of the gap between the balance chamber 8 and the conical part 11, extending its service life.

[0025] As a preferred technical solution in this embodiment, the limiting component includes a limiting post 16 elastically movable on the inner wall of the pressure relief chamber 5, a pressing rod 17 movably disposed inside the valve body 1, a pressing element 18 disposed on the side wall of the limiting post 16, one end of the pressing rod 17 wedge-shapedly engaging with the pressing element 18, a trigger rod 19 movably disposed inside the core 7 that moves synchronously with the pressing rod 17, a sliding post 20 movably connected to the end of the trigger rod 19 away from the pressing rod 17, and a magnetic suction element 21 matching the sliding post 20 disposed on the pressure accumulator 15. Specifically, the limiting post 16... The limiting post 16 is arranged radially along the pressure relief chamber 5. One end of the limiting post 16 extends into the pressure relief chamber 5. When the conical member 11 blocks one end of the balance chamber 8, the limiting post 16 just abuts against the end face of the movable block 10 away from the conical member 11. Preferably, there are multiple limiting posts 16, evenly distributed around the circumference of the movable block 10. The pressing rod 17 is arranged on the side of the limiting post 16 near the conical member 11, corresponding to the limiting post 16 one by one. The extending direction of the pressing rod 17 is consistent with the moving direction and parallel to the axial direction of the pressure relief chamber 5. The pressing rod 17 is close to the side of the limiting post 16 near the conical member 11. One end of the near-limiting post 16 is provided with a slope, and one end of the extrusion member 18 abuts against the end slope of the limiting post 16, thereby achieving a wedge fit; when the extrusion rod 17 approaches the limiting post 16, the extrusion rod 17 pushes the extrusion member 18 through the wedge fit, thereby causing the limiting post 16 to move away from the axis of the pressure relief chamber 5, and when the extrusion rod 17 moves away from the limiting post 16, the limiting post 16 moves back under elastic force to approach the axis of the pressure relief chamber 5; preferably, there are two trigger rods 19, symmetrically arranged about the axis of the core 7, and movably disposed in the core 7. Inside the body, and avoiding the interaction hole 9; the trigger rod 19 is provided with an inclined slide groove 22, and the slide column 20 is provided with a sliding pin 23 that is movably connected to the inclined slide groove 22. The end of the inclined slide groove 22 away from the extrusion rod 17 is set closer to the axis of the core body 7; the slide column 20 can be attracted and attracted by the magnetic attractant 21; the movement direction of the slide column 20 is set along the radial direction of the core body 7; the magnetic attractant 21 is set at the end of the accumulator 15 near the conical member 11. When the accumulator 15 moves with stored force, the magnetic attractant 21 moves closer to the slide column 20, and vice versa.In practical use, when the pressure accumulator 15 has maximum stored force, the magnetic suction component 21 corresponds to the sliding column 20. The sliding column 20 moves closer to the magnetic suction component 21 under magnetic attraction, which in turn drives the sliding pin 23 to move within the inclined slide groove 22. The linkage trigger rod 19 moves closer to the extrusion rod 17, thus pushing the extrusion rod 17 to move. The extrusion rod 17 then moves closer to the limiting post 16, so as to push the extrusion component 18 through wedge engagement, causing the limiting post 16 to move away from the axis of the pressure relief chamber 5, thereby canceling the limitation on the movable block 10. When the pressure in the balance chamber 8 is released into the pressure relief chamber 5, the pressure accumulator... When component 15 is elastically reset, the sliding column 20 separates from the magnetic suction component 21, and the trigger rod 19 and the pressing rod 17 resume free movement. As a result, the limiting column 16 moves back under elastic force to approach the axis of the pressure relief chamber 5, and the pressing rod 17 and the trigger rod 19 also move back accordingly. Furthermore, before the pressure is completely released into the pressure relief chamber 5 by the balance chamber 8, the elastic return of the limiting column 16 will first abut against the outer wall of the movable block 10 until the pressure in the balance chamber 8 is completely released, the movable block 10 resets, and the limiting column 16 returns to the side of the movable block 10 away from the balance chamber 8.

[0026] In the above embodiments, the instantaneous opening gap of the balance chamber 8 is expanded at the beginning. However, due to the elastic reset function of the movable block 10, the instantaneous opening gap will shrink back to a smaller gap after a very short time. This causes the oil to flow through the smaller gap under high pressure, which will still make the gap between the balance chamber 8 and the conical part 11 prone to wear. The following embodiments are proposed to solve this problem.

[0027] In another embodiment of the present invention, the movable block 10 is provided with a spiral groove 24 that matches the limiting post 16. The cross-section of the spiral groove 24 is sawtooth-shaped, and the inclined surface is set towards the limiting post 16. A constant speed component for driving the limiting post 16 to rotate is provided inside the valve body 1. Specifically, after the limiting post 16 releases its limiting effect on the movable block 10, the movable block 10 can be pushed by the oil pressure to move away from the balance chamber 8, thereby causing the limiting post 16 to abut against the side wall of the movable block 10. Due to the sawtooth cross-section of the spiral groove 24, the direction of movement of the movable block 10 when it is instantaneously opened satisfies the automatic squeezing of each spiral turn of the limiting post 16 through the spiral groove 24. When the instantaneous opening gap between the balance chamber 8 and the conical member 11 is at its maximum, the limiting post 16 is embedded in the corresponding portion of the spiral groove 24, which can limit the automatic return movement of the movable block 10 under the elastic force of the first elastic member 13. Then, driven by the constant speed component, the limiting post 16 rotates around the axis of the pressure relief chamber 5, thereby generating a spiral transmission with the spiral groove 24, allowing the movable block 10 to move back towards the balance chamber 8 at a constant speed. This achieves active control over the reduction of the opening gap between the balance chamber 8 and the conical member 11 after opening, avoiding the instantaneous opening gap from shrinking again in a very short time and reducing the wear of the gap between the balance chamber 8 and the conical member 11.

[0028] As a preferred technical solution of this embodiment, the constant speed component includes a rotating member 25 rotatably disposed inside the valve body 1, a limiting post 16 movably passing through the rotating member 25 along the radial direction of the rotating member 25, and a micro motor 26 for driving the rotating member 25 to rotate on the valve body 1. Specifically, the rotating member 25 is coaxially sleeved on the outside of the pressure relief chamber 5; the rotating member 25 is disposed away from the return hole 6; one end of the limiting post 16 away from the movable block 10 passes through the outer wall of the rotating member 25 and is provided with a protruding ring, and a third elastic member 30 is connected between the protruding ring and the outer wall of the rotating member 25. The third elastic member 30 is preferably a spring and can be sleeved on the outside of the limiting post 16. A gear ring is provided on the outer side of the rotating part 25, and a gear meshing with the gear ring is coaxially connected to the output end of the micro motor 26. The micro motor 26 is controlled by the servo system and is triggered after the movable block 10 is pushed by the high-pressure oil to drive the rotating part 25 for a fixed time. Under the control of the servo system, the micro motor 26 is triggered by the control circuit after the movable block 10 is pushed by the high-pressure oil. The control circuit integrates a delay module, which can perform delayed triggering. The fixed time drive of the rotating part 25 is sufficient to drive the limit post 16 to rotate so as to completely disengage from the spiral groove 24. The above servo system and control circuit are existing technologies and will not be described in detail.

[0029] As a preferred technical solution in this embodiment, the rotating member 25 is provided with a guide sleeve 27 that matches the extrusion rod 17. A ring 28 coaxial with the rotating member 25 is movably arranged inside the valve body 1. One side of the ring 28 is fixedly connected to the extrusion rod 17, and the other side of the ring 28 abuts against the trigger rod 19. Specifically, the inner side of the guide sleeve 27 is spaced apart from the outer wall of the pressure relief chamber 5 to avoid blocking the return hole 6. A fourth elastic element 31 is provided between the ring 28 and the guide sleeve 27. The fourth elastic element 31 is preferably a spring and can be sleeved on the outside of the extrusion rod 17. The fourth elastic element 31 makes the guide sleeve 27 and the ring 28 tend to keep away from each other. The ring 28 and the trigger rod 19 move synchronously along the axial direction of the core 7, and the trigger rod 19 does not affect the rotation of the ring 28 driven by the rotating member 25.

[0030] A hydraulic system includes the aforementioned high-flow multi-way valve group, and also includes a hydraulic pump and an oil tank connected to the valve body 1 via pipelines. Specifically, the hydraulic pump is connected to the oil inlet on the valve body 1, and the oil tank is connected to the oil return port on the valve body 1.

[0031] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-flow-rate multi-way valve assembly, comprising a valve body (1), wherein the valve body (1) is provided with an oil inlet path (2) and an oil return path (3), characterized in that, Also includes: Pressure chamber (4) is located inside valve body (1) and is connected to oil inlet path (2); The pressure relief chamber (5) is connected to the pressure chamber (4), and a return hole (6) connected to the return oil path (3) is provided on its side. The core (7) is set inside the pressure chamber (4), and a balance chamber (8) connected to the pressure relief chamber (5) is provided inside it. An interactive hole (9) connecting the pressure chamber (4) and the balance chamber (8) is provided on its side. The movable block (10) is elastically set in the pressure relief chamber (5) to block the return hole (6), and a conical piece (11) is provided on it that is embedded in one end of the balance chamber (8).

2. The high-flow-rate multi-way valve assembly according to claim 1, characterized in that, An adjusting block (12) is movably disposed inside the pressure relief chamber (5). A first elastic element (13) is connected between the movable block (10) and the adjusting block (12). An adjusting screw (14) with a threaded through connection is coaxially connected to the end of the adjusting block (12) away from the first elastic element (13).

3. The high-flow-rate multi-way valve assembly according to claim 1, characterized in that, The balance chamber (8) is elastically provided with a pressure accumulator (15) opposite to the conical part (11), and the pressure relief chamber (5) is provided with a limiting component for limiting the movable block (10). The limiting component cancels the limiting when the pressure accumulator (15) has the maximum force.

4. The high-flow-rate multi-way valve assembly according to claim 3, characterized in that, The limiting assembly includes a limiting post (16) that is elastically movable on the inner wall of the pressure relief chamber (5), a squeezing rod (17) that is movable inside the valve body (1), a squeezing element (18) that is provided on the side wall of the limiting post (16), one end of the squeezing rod (17) and the squeezing element (18) being wedge-shaped engaged, a trigger rod (19) that moves synchronously with the squeezing rod (17) that is movable inside the core (7), a sliding column (20) that is movable at the end of the trigger rod (19) away from the squeezing rod (17), and a magnetic suction element (21) that matches the sliding column (20) that is provided on the pressure accumulator (15).

5. The high-flow-rate multi-way valve assembly according to claim 4, characterized in that, The trigger rod (19) is provided with an inclined slide groove (22), and the slide column (20) is provided with a sliding pin (23) that is movably connected to the inclined slide groove (22).

6. The high-flow-rate multi-way valve assembly according to claim 4, characterized in that, The movable block (10) is provided with a spiral groove (24) that matches the limiting post (16). The cross section of the spiral groove (24) is sawtooth-shaped and the inclined surface is set towards the limiting post (16). The valve body (1) is provided with a constant speed component that drives the limiting post (16) to rotate.

7. The high-flow-rate multi-way valve assembly according to claim 6, characterized in that, The constant speed assembly includes a rotating part (25) rotatably disposed inside the valve body (1), a limiting post (16) movably passing through the rotating part (25) along the radial direction of the rotating part (25), and a micro motor (26) for driving the rotating part (25) to rotate is provided on the valve body (1).

8. The high-flow-rate multi-way valve assembly according to claim 7, characterized in that, The rotating part (25) is provided with a guide sleeve (27) that matches the extrusion rod (17). The valve body (1) is movably provided with a ring (28) that is coaxial with the rotating part (25). One side of the ring (28) is fixedly connected to the extrusion rod (17), and the other side of the ring (28) abuts against the trigger rod (19).

9. The high-flow-rate multi-way valve assembly according to claim 7, characterized in that, The micro motor (26) is controlled by a servo system and is triggered after the piston (10) is pushed by high-pressure oil to drive the rotating part (25) for a certain period of time.

10. A hydraulic system comprising a high-flow-rate multi-way valve assembly as described in any one of claims 1 to 9, characterized in that, It also includes a hydraulic pump and an oil tank connected to the valve body (1) via pipelines.

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