A large-flow quick-response liquid supplement valve structure

Abstract

A large flow quick response liquid supplement valve structure, one end of the iron core assembly is connected with the valve seat assembly, the shell is sleeved outside the iron core assembly and the valve seat assembly, the iron core assembly includes a moving iron core and a static iron core, one end of the static iron core is connected with the moving iron core, the moving iron core is connected with the valve seat assembly, a plurality of connecting protrusions are protrudingly arranged on the side end face of the static iron core close to the moving iron core, and the moving iron core moves in the shell towards the static iron core and is connected with the connecting protrusions. Through the cooperation of the connecting protrusions and the moving iron core, the accurate guidance and stable connection of the moving iron core are realized, and the response speed of the liquid supplement valve is effectively improved. The multi-stage design of the valve seat assembly, especially the pre-tightening spring on the third valve seat, effectively alleviates the influence of liquid impact on the valve seat, reduces wear and deformation, and improves the durability of the liquid supplement valve. The U-shaped structure of the second valve seat optimizes the liquid flow path, reduces the flow resistance, and helps to realize large flow liquid supplement.

Description

Technical Field

[0001] This utility model relates to the field of replenishment valves, specifically to a replenishment valve structure with high flow rate and fast response. Background Technology

[0002] As a key component in hydraulic systems or fluid control, the performance of the replenishing valve directly affects the system's response speed and stability. Existing replenishing valve designs often suffer from flow limitation and slow response, which to some extent restricts the improvement of overall system efficiency. Especially in applications requiring rapid replenishment or precise flow control, traditional replenishing valve designs struggle to meet the demands for high efficiency and accuracy. Furthermore, traditional valve seats are prone to wear and deformation under liquid impact, thus affecting the sealing performance and service life of the replenishing valve. Summary of the Invention

[0003] In view of this, the present invention provides a liquid replenishment valve structure with high flow rate and fast response.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A high-flow-rate, fast-response replenishment valve structure includes a housing, an iron core assembly, and a valve seat assembly. One end of the iron core assembly is connected to the valve seat assembly. The housing is sleeved on the outside of the iron core assembly and the valve seat assembly. The iron core assembly includes a moving iron core and a stationary iron core. One end of the stationary iron core is connected to the moving iron core. The moving iron core is connected to the valve seat assembly. Several connecting ridges protrude from the end face of the stationary iron core near the moving iron core. The moving iron core moves within the housing toward the stationary iron core and engages with the connecting ridges.

[0006] Preferably, the connecting protrusions are arranged in a circular array structure with the stationary iron core axis as the center. The connecting protrusions include a main body portion protruding from the stationary iron core and a clearance portion disposed on the side of the main body portion near the center of the stationary iron core. The moving iron core moves toward the stationary iron core and connects with the main body portion of the connecting protrusions.

[0007] Preferably, a first circular groove is formed on the moving iron core, and a second circular groove is formed between the relief portions. A front return spring is provided between the moving iron core and the stationary iron core. The two ends of the front return spring abut against the bottom walls of the first and second circular grooves, respectively, and the front return spring resets the movement of the moving iron core.

[0008] Preferably, a guide sleeve is fitted on the outer side of the lower end of the moving iron core, and the other end of the guide sleeve is connected to the valve seat assembly.

[0009] Preferably, the valve seat assembly includes a first valve seat, a second valve seat, and a third valve seat. The third valve seat is disposed within a guide sleeve. A preload spring is fitted onto the circumferential surface of the third valve seat. One end of the preload spring abuts against the third valve seat, and the other end of the preload spring abuts against the inner wall of the guide sleeve. The lower end of the third valve seat extends out of the guide sleeve and connects to the second valve seat. One end of the first valve seat is fixedly connected to the inner wall of the lower end of the housing. The second valve seat is disposed within the first valve seat. One end of the second valve seat connects to the third valve seat, and the other end of the second valve seat connects to the first valve seat.

[0010] Preferably, the second valve seat has a U-shaped cross-section.

[0011] Preferably, the third valve seat has a third valve seat body and a connecting part disposed on the third valve seat body. The connecting part is disposed on the side of the body near the iron core assembly. The connecting part is connected to the guide sleeve. A pressure relief groove is provided on the connecting part.

[0012] Preferably, the bottom end of the moving iron core is provided with a steel ball groove, and a steel ball is placed in the steel ball groove. The top end of the third valve seat is provided with an arc-shaped groove corresponding to the position of the steel ball groove. The two sides of the steel ball are respectively placed in the arc-shaped groove and the steel ball groove. A connecting channel connecting the two ends of the third valve seat is provided on the bottom wall of the arc-shaped groove.

[0013] Preferably, both the first valve seat and the second valve seat are hollow structures, with an oil inlet on the side wall of the guide sleeve and an oil outlet on the side wall of the valve seat.

[0014] Preferably, the second valve seat is made by a stamping process.

[0015] The beneficial effects of this utility model are as follows: This design, through the cooperative structure connecting the convex strip and the moving iron core, achieves precise guidance and stable connection of the moving iron core's movement, effectively improving the response speed of the replenishing valve. The multi-stage design of the valve seat assembly, especially the pre-tightening spring on the third valve seat, effectively mitigates the impact of liquid impact on the valve seat, reduces wear and deformation, and improves the durability of the replenishing valve. The U-shaped structure of the second valve seat optimizes the liquid flow path, reduces flow resistance, and helps achieve high-flow-rate replenishment. The pressure relief groove design on the third valve seat can promptly relieve pressure when the system pressure is too high, protecting the replenishing valve from damage and improving system safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Appendix Figure 1 This is a structural schematic diagram of the present invention;

[0018] Appendix Figure 2 This is a schematic diagram of the static iron core in this utility model;

[0019] Appendix Figure 3 This is a schematic diagram of the structure of the first valve seat in this utility model;

[0020] Appendix Figure 4 This is a schematic diagram of the guide sleeve in this utility model;

[0021] Appendix Figure 5 This is a schematic diagram of the structure of the third valve seat in this utility model.

[0022] Figure label:

[0023] 1. Housing; 2. Iron core assembly; 3. Valve seat assembly; 4. Moving iron core; 5. Stationary iron core; 6. Connecting ridge; 7. Main body; 8. Relief part; 9. First circular groove; 10. Second circular groove; 11. Front return spring; 12. Guide sleeve; 13. First valve seat; 14. Second valve seat; 15. Third valve seat; 16. Preload spring; 17. Third valve seat body; 18. Connecting part; 19. Pressure relief groove; 20. Steel ball groove; 21. Steel ball; 22. Arc groove; 23. Connecting channel; 24. Oil inlet; 25. Oil outlet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The present invention will now be further described with reference to the accompanying drawings.

[0026] This utility model provides the following technical solution:

[0027] As attached Figure 1-5As shown, this utility model discloses a high-flow-rate, fast-response replenishing valve structure. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The present invention will now be further described with reference to the accompanying drawings.

[0029] This utility model provides the following technical solution:

[0030] As attached Figure 1-5 As shown, this utility model discloses a high-flow-rate, fast-response replenishment valve structure, including a housing 1, an iron core assembly 2, and a valve seat assembly 3. One end of the iron core assembly 2 is connected to the valve seat assembly 3. The housing 1 is sleeved on the outside of the iron core assembly 2 and the valve seat assembly 3. The iron core assembly 2 includes a moving iron core 4 and a stationary iron core 5. One end of the stationary iron core 5 is connected to the moving iron core 4, and the moving iron core 4 is connected to the valve seat assembly 3. Several connecting protrusions 6 are provided on the end face of the stationary iron core 5 near the moving iron core 4. The moving iron core 4 moves towards the stationary iron core 5 within the housing 1 and connects with the connecting protrusions 6. In this embodiment, the function of the connecting protrusions 6 is to reduce the contact area between the boss of the stationary iron core 5 and the moving iron core 4, so that when energized, the magnetic lines of force are highly concentrated at the tip of the boss, generating a stronger local electromagnetic attraction and shortening the opening and closing response time of the valve core. The function of the iron core assembly 2 is to achieve a fast response through the cooperation of the moving iron core 4 and the stationary iron core 5, and the special design of the connecting protrusions 6. When the electromagnetic coil is energized, the stationary iron core 5 generates magnetism, attracting the moving iron core 4 to move towards it. The moving iron core 4 then connects with the connecting protrusion 6, thereby actuating the valve seat assembly 3 and controlling the flow of liquid. Because the connecting protrusion 6 reduces the contact area, the magnetic lines of force are highly concentrated at the tip of the protrusion, generating a stronger local electromagnetic attraction. This significantly shortens the opening and closing response time of the valve core, improving the working efficiency of the replenishing valve. Simultaneously, the structural design of the iron core assembly 2 ensures the stability and reliability of the replenishing valve under high flow conditions.

[0031] Furthermore, the connecting protrusions 6 are arranged in a ring array structure centered on the axis of the stationary iron core 5. Each connecting protrusion 6 includes a main body 7 protruding from the stationary iron core 5 and a clearance portion 8 located on the side of the main body 7 near the center of the stationary iron core 5. The moving iron core 4 moves towards the stationary iron core 5 and connects with the main body 7 of the connecting protrusion 6. In this embodiment, the main body 7 has an arc-shaped structure, and the clearance portion 8 has an arc-shaped recessed structure. The ring array arrangement of the connecting protrusions 6 can evenly disperse the stress generated when the moving iron core 4 contacts the stationary iron core 5, avoiding structural damage caused by localized stress concentration and extending the service life of the replenishing valve. Moreover, the arc-shaped recessed structure of the clearance portion 8 can also play a guiding role during the movement of the moving iron core 4, ensuring that the front return spring 11 always moves along the correct trajectory, further improving the reliability and accuracy of the replenishing valve's operation. In this embodiment, the function of the connecting protrusions is to form an air gap between the stationary iron core 5 and the moving iron core 4 when the solenoid valve is closed. Without this protrusion, the contact surfaces of the stationary iron core 5 and the moving iron core 4 would be two completely flat planes. Under the immense electromagnetic attraction and frequent hydraulic pulse impacts, the two metal planes might "cold weld" or microscopically adhere, or become stuck due to minute contaminants in the oil. The protrusion transforms the large-area planar contact into a point contact, greatly reducing the contact area and fundamentally eliminating the possibility of adhesion and sticking. When the electromagnetic force disappears, the pre-positioned return spring 11 can easily overcome the frictional force of this point contact, pushing the moving iron core back and ensuring the valve closes quickly and reliably.

[0032] Furthermore, a first circular groove 9 is formed on the moving iron core 4, and a second circular groove 10 is formed between the relief portions 8. A front-mounted return spring 11 is provided between the moving iron core 4 and the stationary iron core 5. The two ends of the front-mounted return spring 11 abut against the bottom walls of the first circular groove 9 and the second circular groove 10, respectively. The front-mounted return spring 11 resets the movement of the moving iron core 4. In this embodiment, the function of the first circular groove 9 is to provide a stable support point for one end of the front-mounted return spring 11, ensuring that the spring can maintain a vertical state during compression and extension, and reducing the influence of lateral forces on the movement of the moving iron core 4. The second circular groove 10 is naturally formed between the relief portions 8, which not only saves material costs but also provides suitable installation space for the other end of the front-mounted return spring 11. When the electromagnetic coil is de-energized, the front return spring 11 uses its own elastic force to push the moving iron core 4 away from the stationary iron core 5, causing the moving iron core 4 to separate from the connecting protrusion 6. Under the action of the steel ball 21, the valve seat assembly 3 returns to its initial state, cutting off the liquid flow and thus achieving rapid closure of the replenishing valve. This design ensures that the replenishing valve maintains smooth and reliable operation during opening and closing, improving the stability and durability of the entire system.

[0033] Furthermore, a guide sleeve 12 is fitted on the outer side of the lower end of the moving iron core 4, and the other end of the guide sleeve 12 is connected to the valve seat assembly 3. In this embodiment, the guide sleeve 12 assists the moving iron core 4 and the first valve seat 13 in moving. The guide sleeve 12 is fixedly installed on the outer side of the lower end of the moving iron core 4. The movement of the moving iron core 4 drives the guide sleeve 12 to move. The movement of the guide sleeve 12 causes the preload spring 16 installed between the third valve seat 15 and the guide sleeve 12 to be pressed. The preload spring 16 drives the third valve seat 15 to move, so that the valve port between the third valve seat 15 and the second valve seat 14 is opened. When the electromagnetic coil is de-energized, the guide sleeve 12 and the moving iron core 4 are reset, and the valve port is closed. In this embodiment, the guide sleeve 12 also has a guiding function, which can ensure that the moving iron core 4 and the valve seat assembly 3 always move along a predetermined trajectory during the movement, avoiding performance degradation or wear caused by deviation or shaking. Meanwhile, the tight connection between the guide sleeve 12 and the valve seat assembly 3 also enhances the stability and rigidity of the entire replenishing valve structure, enabling the replenishing valve to maintain stable performance when dealing with large flow liquid impacts.

[0034] Furthermore, the valve seat assembly 3 includes a first valve seat 13, a second valve seat 14, and a third valve seat 15. The third valve seat 15 is fixedly disposed within the guide sleeve 12. A preload spring 16 is fitted onto the circumferential surface of the third valve seat 15. One end of the preload spring 16 abuts against the third valve seat 15, and the other end abuts against the inner wall of the guide sleeve 12. The lower end of the third valve seat 15 extends out of the guide sleeve 12 and connects to the second valve seat 14. One end of the first valve seat 13 is fixedly connected to the inner wall of the lower end of the housing 1. The second valve seat 14 is disposed within the first valve seat 13, with one end connected to the third valve seat 15 and the other end connected to the first valve seat 13. In this embodiment, the function of the valve seat assembly 3 is to precisely control the flow and cut-off of liquid through the coordinated cooperation between the valve seats. The first valve seat 13, as the basic support part of the entire valve seat assembly 3, is fixedly connected to the inner wall of the lower end of the housing 1, providing a stable installation position for the other valve seats. The second valve seat 14 is located inside the first valve seat 13 and is connected to both the first valve seat 13 and the third valve seat 15. It plays a crucial role in transitioning and transmitting force. The third valve seat 15 is located inside the guide sleeve 12, and the preload spring 16 on its circumferential surface provides a certain preload force, ensuring a tight fit between the components in the initial state. Simultaneously, when the moving iron core 4 and the guide sleeve 12 move, the elasticity of the preload spring 16 can buffer some of the impact force, making the operation of the entire replenishing valve smoother. When the moving iron core 4 moves under the action of electromagnetic force, it drives the guide sleeve 12 and the third valve seat 15 to move, realizing the flow and disconnection of liquid, ensuring that the liquid can be flow-controlled according to predetermined requirements.

[0035] Furthermore, the second valve seat 14 has a U-shaped cross-section. In this embodiment, the U-shaped cross-section of the second valve seat 14 enhances the hydraulic resistance of the sealing surface. Since the second valve seat 14 is located on the critical path of liquid flow, its U-shaped structure effectively disperses liquid pressure, reducing the risk of deformation caused by high-pressure liquid impact. This design not only enhances the durability of the valve seat but also ensures that the sealing performance between the valve seat and adjacent components remains stable under long-term, high-flow-rate operating conditions, thereby effectively preventing liquid leakage and improving the overall reliability and service life of the replenishing valve.

[0036] Furthermore, the third valve seat 15 has a third valve seat body 17 and a connecting portion 18 disposed on the third valve seat body 17. The connecting portion 18 is disposed on the side of the third valve seat body 17 near the iron core assembly 2, and is connected to the guide sleeve 12. A pressure relief groove 19 is provided on the connecting portion 18. In this embodiment, the function of the pressure relief groove 19 is to discharge some liquid in time when the liquid pressure is too high during the operation of the replenishing valve, thereby reducing the pressure at the connection between the third valve seat 15 and the guide sleeve 12 and preventing damage or leakage at the connection due to excessive pressure. At the same time, the pressure relief groove 19 can also balance the pressure difference inside and outside the valve seat, making the third valve seat 15 move more smoothly and reducing the resistance caused by uneven pressure, further improving the response speed and working stability of the replenishing valve. Moreover, the design of the pressure relief groove 19 also helps to reduce the turbulence of liquid in the valve seat, reduce energy loss, and enable the replenishing valve to operate more efficiently under high flow conditions.

[0037] Furthermore, a ball groove 20 is formed at the bottom of the moving iron core 4, and a steel ball 21 is placed in the ball groove 20. An arc-shaped groove 22 is formed at the top of the third valve seat 15 corresponding to the position of the ball groove 20. The two sides of the steel ball 21 are respectively placed in the arc-shaped groove 22 and the ball groove 20. A connecting channel 23 is formed on the bottom wall of the arc-shaped groove 22, connecting the two ends of the third valve seat 15. In this embodiment, the cooperative design of the steel ball 21 with the ball groove 20 and the arc-shaped groove 22 ensures the precise connection and stable movement between the moving iron core 4 and the third valve seat 15. When the moving iron core 4 moves under the action of electromagnetic force, the steel ball 21 moves upward along with the steel ball groove 20, the arc groove 22 is opened, and the liquid can enter the oil inlet 24 through the flow channel. As the moving iron core 4 continues to move upward, the guide sleeve 12 presses the preload spring 16, which drives the third valve seat 15 to move upward, thereby opening the connection between the third valve seat 15 and the second valve seat 14, and the solenoid valve is fully opened. After the power is cut off, the preload spring 16 drives the guide sleeve 12 and the third valve seat 15 to move towards the first valve seat 13. The front return spring 11 drives the moving iron core 4 to return to its original position, closes the valve port, and the steel ball 21 returns to the arc groove 22.

[0038] Furthermore, both the first valve seat 13 and the second valve seat 14 are hollow structures. An oil inlet 24 is provided on the side wall of the guide sleeve 12, and an oil outlet 25 is provided on the side wall of the valve seat. In this embodiment, the hollow structure of the first valve seat 13 and the second valve seat 14 not only reduces the overall weight of the valve seat assembly 3 but also effectively increases the liquid flow area. This allows for smoother liquid flow under high flow conditions, reducing pressure loss and energy consumption caused by structural obstruction. This design further improves the working efficiency and performance stability of the replenishing valve. Simultaneously, the oil inlet 24 on the side wall of the guide sleeve 12, as the main channel for liquid entry into the replenishing valve, is carefully designed in position and size to ensure that the liquid can enter the valve evenly and quickly, forming a good fit with each valve seat assembly 3. This together achieves precise control and stable flow of the liquid, allowing the pressure inside the valve to be released in a timely manner, avoiding hydraulic agitation and noise caused by excessive flow at the front end of the replenishing valve. In this embodiment, the guide sleeve 12 is provided with 6 oil inlets 24 and the valve seat is provided with 5 oil outlets 25. In other cases, the number of oil inlets 24 and oil outlets 25 can be selected according to the specific situation and scenario.

[0039] Furthermore, the second valve seat 14 is manufactured using a stamping process. In this embodiment, using a stamping process to manufacture the second valve seat 14 offers several advantages. The stamping process enables high-precision dimensional control, ensuring accurate dimensions of all parts of the second valve seat 14. This results in a tighter and more precise fit with components such as the first valve seat 13 and the third valve seat 15, effectively reducing liquid leakage caused by dimensional deviations and improving the sealing performance of the replenishing valve. Moreover, the stamping process has high production efficiency, enabling the mass production of compliant second valve seats 14 in a short time, meeting the needs of large-scale production and reducing production costs. Simultaneously, the stamped second valve seat 14 has a high-quality, smooth surface, reducing resistance caused by surface roughness during liquid flow, further improving liquid flow efficiency, and also helping to reduce energy loss due to friction. In addition, the second valve seat 14 manufactured using this process has high strength, capable of withstanding the significant pressure generated by large-flow liquid impacts, and is less prone to deformation or damage, ensuring the stability and reliability of the replenishing valve under long-term, high-load operating conditions, and extending the service life of the replenishing valve.

[0040] In this embodiment, the thickness of the housing 1 is set to 0.3-0.35mm, which can withstand a hydraulic pressure of more than 35MPa. When the coil is energized, the replenishing valve can be opened quickly by consuming a small current, which fully meets the ESC requirements. In terms of process, the strength of the housing can meet the requirements of each process.

[0041] Working principle: When no power is applied, the pre-positioned return spring inside the replenishing valve pushes the moving iron core away from the stationary iron core. This causes the steel ball to be pressed into the steel ball groove, and at the same time, the second and third valve seats are also pressed against the first valve seat, closing the passage.

[0042] When energized: Current flows through the coil, generating a magnetic field. At this time, the connecting protrusion responds quickly, and the magnetic field attracts the moving iron core, causing it to overcome the spring force and move towards the stationary iron core. The movement of the moving iron core drives the steel ball to move towards the moving iron core and also drives the third valve seat to move, separating it from the second valve seat and opening the channel.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-flow-rate, fast-response replenishing valve structure, comprising a housing, an iron core assembly, and a valve seat assembly, wherein one end of the iron core assembly is connected to the valve seat assembly, and the housing is sleeved on the outside of the iron core assembly and the valve seat assembly, characterized in that: The iron core assembly includes a moving iron core and a stationary iron core. One end of the stationary iron core is connected to the moving iron core, and the moving iron core is connected to the valve seat assembly. Several connecting protrusions are provided on the side end face of the stationary iron core near the moving iron core. The moving iron core moves towards the stationary iron core within the housing and connects with the connecting protrusions.

2. The high-flow-rate, fast-response replenishing valve structure according to claim 1, characterized in that: The connecting protrusions are arranged in a circular array structure with the stationary iron core axis as the center. The connecting protrusions include a main body portion protruding from the stationary iron core and a clearance portion disposed on the side of the main body portion near the center of the stationary iron core. The moving iron core moves toward the stationary iron core and connects with the main body portion of the connecting protrusions.

3. The replenishing valve structure with high flow rate and fast response according to claim 2, characterized in that: The moving iron core has a first circular groove, and the clearance portion forms a second circular groove. A front return spring is provided between the moving iron core and the stationary iron core. The two ends of the front return spring abut against the bottom walls of the first and second circular grooves, respectively, and the front return spring resets the movement of the moving iron core.

4. The replenishing valve structure with high flow rate and fast response according to claim 1, characterized in that: A guide sleeve is fitted on the outer side of the lower end of the moving iron core, and the other end of the guide sleeve is connected to the valve seat assembly.

5. The replenishing valve structure with high flow rate and fast response according to claim 2, characterized in that: The valve seat assembly includes a first valve seat, a second valve seat, and a third valve seat. The third valve seat is disposed within a guide sleeve. A preload spring is fitted on the circumferential surface of the third valve seat. One end of the preload spring abuts against the third valve seat, and the other end of the preload spring abuts against the inner wall of the guide sleeve. The lower end of the third valve seat extends out of the guide sleeve and connects to the second valve seat. One end of the first valve seat is fixedly connected to the inner wall of the lower end of the housing. The second valve seat is disposed within the first valve seat. One end of the second valve seat connects to the third valve seat, and the other end of the second valve seat connects to the first valve seat.

6. The replenishing valve structure with high flow rate and fast response according to claim 5, characterized in that: The second valve seat has a U-shaped cross-section.

7. The replenishing valve structure with high flow rate and fast response according to claim 5, characterized in that: The third valve seat has a third valve seat body and a connecting part disposed on the third valve seat body. The connecting part is disposed on the side of the third valve seat body near the iron core assembly. The connecting part is connected to the guide sleeve. A pressure relief groove is provided on the connecting part.

8. The replenishing valve structure with high flow rate and fast response according to claim 5, characterized in that: The bottom end of the moving iron core is provided with a steel ball groove, and a steel ball is placed in the steel ball groove. The top of the third valve seat is provided with an arc-shaped groove corresponding to the position of the steel ball groove. The steel ball is respectively placed in the arc-shaped groove and the steel ball groove on both sides. A connecting channel connecting the two ends of the third valve seat is provided on the bottom wall of the arc-shaped groove.

9. The replenishing valve structure with high flow rate and fast response according to claim 5, characterized in that: Both the first valve seat and the second valve seat are hollow structures. An oil inlet is provided on the side wall of the guide sleeve, and an oil outlet is provided on the side wall of the valve seat.

10. The replenishing valve structure with high flow rate and fast response according to claim 9, characterized in that: The second valve seat is made by stamping.

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