Bidirectional speed regulation hydraulic valve group

Abstract

The invention relates to the technical field of hydraulic valves, in particular to a two-way speed regulation hydraulic valve bank which comprises a two-way hydraulic valve body, and an oil inlet port, a T-shaped cavity, a first communicating hole, a speed regulation groove, a second communicating hole, a backflow prevention groove and an oil outlet port which communicate with one another are sequentially formed in the two-way hydraulic valve body from right to left. By arranging the magnetic control speed regulation assembly, the backflow prevention assembly, the pressure reduction assembly and the magnetic control pressure regulation assembly which are located in the different channels, the magnetic control speed regulation assembly can control the size of an oil outlet opening of hydraulic oil from the first communication hole so as to adjust the oil outlet speed; the magnetic control pressure regulating assembly can be provided with a second oil outlet from the oil outlet of the oil outlet port, and the magnetic transmission size of a magnetic control part in the magnetic control pressure regulating assembly can be regulated according to the oil outlet speed of the second oil outlet; and the oil outlet port and the second oil outlet can be respectively communicated with a hydraulic system pipeline according to requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic valves, and specifically to a two-way speed-regulating hydraulic valve group. Background Art

[0002] A hydraulic valve is an automated component operated by pressure oil. It is controlled by the pressure oil of a distribution valve and is usually used in combination with an electromagnetic distribution valve. It can be used to remotely control the on-off of the oil, gas, and water pipeline systems in a hydropower station. However, a two-way hydraulic valve is a hydraulic control valve with two control oil ports that can achieve two-way flow. It mainly consists of a valve body, a valve core, a spring, control oil ports, and other components.

[0003] However, in actual applications, the traditional two-way hydraulic valve usually adjusts the elastic force of the spring to regulate the oil outlet speed of the hydraulic oil. However, the spring is usually located inside the hydraulic oil, which easily causes the spring to have a slow response speed during speed regulation and cannot meet the control requirements of higher-demand hydraulic systems. Summary of the Invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art and provide a two-way speed-regulating hydraulic valve group. This solution can respond more quickly when adjusting the oil outlet speed of the hydraulic valve by adopting dual driving of magnetic control and a spring, and by adjusting the transmission between the magnetic controls, it can accurately adjust the oil outlet pressure according to requirements and can be applied to the control of hydraulic systems with higher accuracy requirements.

[0005] To solve the above problems, the present invention provides the following technical solution: A two-way speed-regulating hydraulic valve group includes a two-way hydraulic valve main body. Inside the two-way hydraulic valve main body, an oil inlet port, a T-shaped cavity, a first communication hole, a speed-regulating groove, a second communication hole, an anti-backflow groove, and an oil outlet port are successively opened from right to left and are connected to each other.

[0006] Inside the two-way hydraulic valve main body, a magnetic control speed-regulating component is arranged inside the speed-regulating groove, and an anti-backflow component is arranged inside the anti-backflow groove. A pressure-reducing component connected to the magnetic control speed-regulating component is arranged inside the T-shaped cavity, and a magnetic control pressure-regulating component connected to the anti-backflow component is arranged inside the two-way hydraulic valve main body.

[0007] Further, the magnetic control speed-regulating component includes a speed-regulating valve core slidably matched with the inner wall of the speed-regulating groove, and a first magnetic column fixed to the lower end of the speed-regulating valve core. The magnetic control speed-regulating component further includes a first electromagnet embedded in the bottom surface of the two-way hydraulic valve main body and extending into the speed-regulating groove.

[0008] The beneficial effect of adopting the above further solution is that by setting up the magnetic control speed regulation component, it is convenient to push the speed regulation valve core to move up and down inside the speed regulation groove through the action of magnetic control when the hydraulic oil passes through the oil inlet port, the T-shaped cavity, and the first communication hole, so that the speed regulation valve core can block the outlet of the first communication hole and adjust the opening size of the outlet of the first communication hole according to requirements, thereby being able to adjust the oil outlet speed of the hydraulic oil.

[0009] Further, the magnetic control speed regulation component further includes a first telescopic spring and a second telescopic spring located inside the speed regulation groove. The upper and lower ends of the first telescopic spring are respectively fixedly connected to the bottom surface of the first magnetic column and the inner bottom wall of the speed regulation groove, and the upper and lower ends of the second telescopic spring are respectively fixedly connected to the inner top wall of the speed regulation groove and the upper end of the speed regulation valve core.

[0010] The beneficial effect of adopting the above further solution is that by setting up the magnetic control speed regulation component and the first telescopic spring and the second telescopic spring inside the magnetic control speed regulation component, it is convenient to limit and pull the position of the speed regulation valve core, so that when the speed regulation valve core is magnetically repelled by the first magnetic column, it can avoid the situation of excessive sliding due to excessive pushing force.

[0011] Further, the pressure reducing component includes a third telescopic spring fixed to the inner top wall of the upper cavity of the T-shaped cavity, and a sliding disk fixedly connected to the lower end of the third telescopic spring and slidably matched with the inner wall of the upper cavity of the T-shaped cavity. The bottom surface of the sliding disk is fixedly connected with a pressure reducing valve core slidably matched with the inner wall of the lower cavity of the T-shaped cavity, and a groove is opened on the outer surface of the pressure reducing valve core for the passage of hydraulic oil.

[0012] The beneficial effect of adopting the above further solution is that by setting up the pressure reducing component, when hydraulic oil is introduced into the oil inlet port, the hydraulic oil is transmitted into the T-shaped cavity and the first communication hole, and the setting of the groove facilitates the passage of the hydraulic oil through the lower cavity of the T-shaped cavity.

[0013] Further, the pressure reducing component further includes a third communication hole opened inside the two-way hydraulic valve body and communicating with the upper cavity of the T-shaped cavity and the speed regulation groove, and a fourth communication hole opened inside the two-way hydraulic valve body and communicating with the T-shaped cavity and the first communication hole. The fourth communication hole is used for the communication between the first communication hole and the upper and lower cavities of the T-shaped cavity respectively.

[0014] The beneficial effect of adopting the above further solution is that by setting up the pressure reducing component and the third communication hole and the fourth communication hole inside the pressure reducing component, when the first communication hole closes the oil outlet, the hydraulic oil that is still entering can be transmitted into the upper cavity and the lower cavity of the T-shaped cavity through the third communication hole and the fourth communication hole respectively.

[0015] Further, the anti-backflow component includes a sliding column that is slidably engaged with the inner wall of the anti-backflow groove, and a clamping column that is fixed to the upper surface of the sliding column and is adapted to the through hole at the bottom surface of the oil outlet port. A fourth telescopic spring is disposed inside the reserved hole at the lower end of the sliding column, and the upper and lower ends of the fourth telescopic spring are respectively fixedly connected to the inner top wall of the sliding column and the inner bottom wall of the anti-backflow groove. The anti-backflow component further includes a fifth communication hole formed in the upper surface of the sliding column.

[0016] The beneficial effect of adopting the above further solution is that by setting the anti-backflow component, it is possible to facilitate the prevention of backflow when the hydraulic oil exits the oil outlet port. And through the setting of the fourth telescopic spring, the sliding column can be pulled downward by a certain distance when there is no oil outlet yet, so that the clamping column can be tightly closed with the reserved hole in the inner bottom wall of the oil outlet port, thereby avoiding the leakage when the oil outlet pressure of the hydraulic oil is insufficient.

[0017] Further, the magnetic control pressure regulating component includes a pressure regulating groove formed inside the main body of the two-way hydraulic valve, and a sixth communication hole formed inside the main body of the two-way hydraulic valve and communicating with the anti-backflow groove and the pressure regulating groove respectively. The inner wall of the pressure regulating groove is slidably connected with a pressing block for sealing and blocking the sixth communication hole. The magnetic control pressure regulating component further includes a second magnetic column fixed to the bottom surface of the pressing block, and a second electromagnet embedded in the bottom surface of the main body of the two-way hydraulic valve and extending into the pressure regulating groove.

[0018] Further, the magnetic control pressure regulating component further includes a seventh communication hole formed inside the main body of the two-way hydraulic valve and communicating with the pressure regulating groove and the inner cavity of the sliding column respectively.

[0019] The beneficial effect of adopting the above further solution is that by setting the magnetic control pressure regulating component, a second oil outlet can be opened again inside the oil outlet of the oil outlet port, and through the magnetic control effect, the driving force for closing the sixth communication hole can be adjusted. Only when the pressure of the hydraulic oil reaches the standard of the oil outlet pressure, can the hydraulic oil be discharged from the second oil outlet.

[0020] Further, the magnetic control pressure regulating component further includes an eighth communication hole formed in the upper surface of the clamping column and communicating with the inner cavity of the sliding column, and a fifth telescopic spring located inside the pressure regulating groove. The upper and lower ends of the fifth telescopic spring are respectively fixedly connected to the lower end of the second magnetic column and the upper end of the second electromagnet.

[0021] The beneficial effect of adopting the above further solution is that by setting the magnetic control regulating component, the setting of the eighth communication hole in the magnetic control regulating component can facilitate the oil outlet of the second oil outlet, and can also be connected to the pipeline according to the demand and enter the hydraulic system to transmit the hydraulic oil.

[0022] Compared with the prior art, the two-way speed regulating hydraulic valve set has the following beneficial effects:

[0023] 1. By providing a magnetically controlled speed regulation component, a backflow prevention component, a pressure reduction component, and a magnetically controlled pressure regulation component located in different channels, the present invention enables the magnetically controlled speed regulation component to control the opening size of the hydraulic oil flowing out from the first communication hole to adjust the oil outflow speed. Meanwhile, through the backflow prevention component, the situation of hydraulic oil flowing back after flowing out from the oil outlet port can be prevented. The setting of the magnetically controlled pressure regulation component can open a second oil outlet at the oil outlet of the oil outlet port, and adjust the magnetic drive magnitude of the magnetic control component in the magnetically controlled pressure regulation component according to the required oil outflow speed of the second oil outlet. The oil outlet port and the second oil outlet can be respectively connected to the hydraulic system pipeline according to requirements.

[0024] 2. By providing a magnetically controlled pressure regulation component, the present invention can open a second oil outlet again inside the oil outlet of the oil outlet port. Through the setting of the magnetically controlled adjustment component and the eighth communication hole in the magnetically controlled adjustment component, it is convenient for the second oil outlet to discharge oil, and it can also be connected to the eighth communication hole connecting pipeline according to requirements to enter the hydraulic system for the transmission of hydraulic oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the front view of the three-dimensional structure of the overall device of the present invention;

[0026] Figure 2 is the side view of the three-dimensional structure of the overall device of the present invention;

[0027] Figure 3 is the sectional view of the three-dimensional structure of the overall device of the present invention;

[0028] Figure 4 is the sectional view of the three-dimensional structure when the overall device of the present invention discharges oil.

[0029] In the drawings, the list of components represented by each reference numeral is as follows:

[0030] 1. Bidirectional hydraulic valve body; 2. Oil inlet port; 3. T-shaped cavity; 4. First communication hole; 5. Speed regulation groove; 6. Second communication hole; 7. Backflow prevention groove; 8. Oil outlet port; 9. Speed regulation valve core; 10. First magnetic column; 11. First electromagnet; 12. First telescopic spring; 13. Second telescopic spring; 14. Third telescopic spring; 15. Sliding disk; 16. Pressure reduction valve core; 17. Groove; 18. Third communication hole; 19. Fourth communication hole; 20. Sliding column; 21. Clamping column; 22. Fourth telescopic spring; 23. Fifth communication hole; 24. Pressure regulation groove; 25. Sixth communication hole; 26. Extrusion block; 27. Second magnetic column; 28. Second electromagnet; 29. Seventh communication hole; 30. Eighth communication hole; 31. Fifth telescopic spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0032] It should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" in the terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For those of ordinary skill in the art, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0033] As described in the background art, in actual application, the traditional two-way hydraulic valve usually adjusts the elastic force of the spring to regulate the oil outlet speed of the hydraulic oil. However, the spring is usually located inside the hydraulic oil, which easily causes the spring to have a slow response speed during speed regulation and cannot meet the control requirements of higher-demand hydraulic systems. For this reason, this embodiment provides a two-way speed-regulating hydraulic valve group. The device can respond more quickly when adjusting the oil outlet speed of the hydraulic valve by adopting dual driving of magnetic control and spring, and by adjusting the transmission between the magnetic controls, it can accurately adjust the oil outlet pressure as required and can be applied to the control of hydraulic systems with higher precision requirements.

[0034] See Figure 1 - Figure 4 , this embodiment proposes a two-way speed-regulating hydraulic valve group, including a two-way hydraulic valve main body 1. Inside the two-way hydraulic valve main body 1, an oil inlet port 2, a T-shaped cavity 3, a first communication hole 4, a speed-regulating groove 5, a second communication hole 6, an anti-backflow groove 7, and an oil outlet port 8 are successively opened from right to left and are connected to each other.

[0035] Refer to Figures 1 to 4 , the settings of the oil inlet port 2, the T-shaped cavity 3, the first communication hole 4, the speed-regulating groove 5, the second communication hole 6, the anti-backflow groove 7, and the oil outlet port 8 form a first oil outlet channel through the sequentially connected manner, and through the settings of subsequent components, it can facilitate the control of the oil outlet pressure and speed of the hydraulic oil in the first oil outlet channel, so as to be used in a hydraulic system with higher oil outlet speed regulation accuracy.

[0036] Inside the two-way hydraulic valve main body 1, a magnetic control speed-regulating component is arranged inside the speed-regulating groove 5, and an anti-backflow component is arranged inside the anti-backflow groove 7. A pressure-reducing component connected to the magnetic control speed-regulating component is arranged inside the T-shaped cavity 3, and a magnetic control pressure-regulating component connected to the anti-backflow component is arranged inside the two-way hydraulic valve main body 1.

[0037] Refer to Figures 1 to 4, the settings of the magnetic control speed regulation component, anti-backflow component, pressure reduction component and magnetic control pressure regulation component can not only facilitate the precise speed regulation of the hydraulic oil flowing out from the first oil outlet, but also open a second oil outlet in the first oil outlet, and can also control the oil outlet speed and speed regulation accuracy of the second oil outlet.

[0038] As a supplement, by respectively charging the forward pulse current into the magnetic control speed regulation component and the magnetic control pressure regulation component, the magnetic transmission force can be changed, so as to drive the internal components for precise adjustment.

[0039] The magnetic control speed regulation component includes a speed regulation valve core 9 slidably matched with the inner wall of the speed regulation groove 5, and a first magnetic column 10 fixed to the lower end of the speed regulation valve core 9. The magnetic control speed regulation component also includes a first electromagnet 11 embedded in the bottom surface of the bidirectional hydraulic valve body 1 and extending into the speed regulation groove 5.

[0040] By setting the magnetic control speed regulation component, when the hydraulic oil passes through the oil inlet port 2, the T-shaped cavity 3, and the first communication hole 4, the magnetic control effect can be used to push the speed regulation valve core 9 to move up and down inside the speed regulation groove 5, so that the speed regulation valve core 9 can block the outlet of the first communication hole 4, and the opening size of the outlet of the first communication hole 4 can be adjusted according to the needs, thereby being able to adjust the oil outlet speed of the hydraulic oil.

[0041] As a supplement, when precisely regulating the speed of the hydraulic oil, first charging a forward pulse current into the first electromagnet 11 can generate magnetic repulsion between the first electromagnet 11 and the first magnetic column 10, so that the first magnetic column 10 pushes the speed regulation valve core 9 to move upward. By adjusting the magnitude of the forward pulse current charged, the thrust generated by the magnetism can be used to adjust the thrust on the speed regulation valve core 9, and then the opening size of the oil outlet end of the first communication hole 4 can be adjusted.

[0042] The magnetic control speed regulation component also includes a first telescopic spring 12 and a second telescopic spring 13 located inside the speed regulation groove 5. The upper and lower ends of the first telescopic spring 12 are respectively fixedly connected to the bottom surface of the first magnetic column 10 and the inner bottom wall of the speed regulation groove 5, and the upper and lower ends of the second telescopic spring 13 are respectively fixedly connected to the inner top wall of the speed regulation groove 5 and the upper end of the speed regulation valve core 9.

[0043] By setting the magnetic control speed regulation component, the settings of the first telescopic spring 12 and the second telescopic spring 13 in the magnetic control speed regulation component can facilitate the limitation and pulling of the position of the speed regulation valve core 9, so that when the speed regulation valve core 9 is repelled by the magnetism of the first magnetic column 10, the situation of excessive sliding caused by too large a pushing force can be avoided.

[0044] As a supplement, when the speed control valve core 9 rises, it can be subjected to the bi-directional pulling forces of the first telescopic spring 12 and the second telescopic spring 13, enabling the speed control valve core 9 to float inside the speed control groove 5. Thus, the precise lifting of the speed control valve core 9 can be achieved by controlling the magnitude of the positive pulse current passed into the first electromagnet 11 subsequently. Moreover, under the dual action of magnetic control and the spring, the response speed during the speed control process can be significantly improved.

[0045] The pressure reducing assembly includes a third telescopic spring 14 fixed to the top wall of the upper cavity of the T-shaped cavity 3, and a sliding disk 15 fixedly connected to the lower end of the third telescopic spring 14 and slidably engaged with the inner wall of the upper cavity of the T-shaped cavity 3. The bottom surface of the sliding disk 15 is fixedly connected with a pressure reducing valve core 16 slidably engaged with the inner wall of the lower cavity of the T-shaped cavity 3, and a grooving 17 is formed on the outer surface of the pressure reducing valve core 16 for the passage of hydraulic oil.

[0046] By providing the pressure reducing assembly, when hydraulic oil is introduced through the oil inlet port 2, the hydraulic oil is transmitted to the T-shaped cavity 3 and the first communication hole 4. The setting of the grooving 17 facilitates the passage of hydraulic oil from the lower cavity of the T-shaped cavity 3.

[0047] As a supplement, through the setting of subsequent components, when the magnetic control speed control assembly closes the oil outlet of the first communication hole 4 while the oil inlet port 2 is still in the oil inlet state, the hydraulic oil entering can be stored in the upper and lower cavities of the T-shaped cavity 3. And due to the buffering effect of the third telescopic spring 14, it can prevent damage to the internal channels of the bi-directional hydraulic valve body 1 caused by excessive hydraulic oil pressure when the oil inlet port 2 is filled with hydraulic oil.

[0048] The pressure reducing assembly further includes a third communication hole 18 formed inside the bi-directional hydraulic valve body 1 and communicating with the upper cavity of the T-shaped cavity 3 and the speed control groove 5, and a fourth communication hole 19 formed inside the bi-directional hydraulic valve body 1 and communicating with the T-shaped cavity 3 and the first communication hole 4. The fourth communication hole 19 is used for the communication between the first communication hole 4 and the upper and lower cavities of the T-shaped cavity 3 respectively.

[0049] By providing the pressure reducing assembly, the settings of the third communication hole 18 and the fourth communication hole 19 in the pressure reducing assembly can enable the hydraulic oil still entering to be transmitted to the upper and lower cavities of the T-shaped cavity 3 respectively through the third communication hole 18 and the fourth communication hole 19 when the oil outlet of the first communication hole 4 is closed. Thus, it can avoid the situation that due to the rapid closing of the first communication hole 4, a small amount of hydraulic oil continues to be conveyed, causing impact and damage to the internal components of the bi-directional hydraulic valve body 1.

[0050] The anti-backflow component includes a sliding column 20 that is slidably engaged with the inner wall of the anti-backflow groove 7, and a clamping column 21 that is fixed on the upper surface of the sliding column 20 and is adapted to the through hole in the bottom surface of the oil outlet port 8. A fourth telescopic spring 22 is disposed inside the reserved hole at the lower end of the sliding column 20, and the upper and lower ends of the fourth telescopic spring 22 are respectively fixedly connected to the inner top wall of the sliding column 20 and the inner bottom wall of the anti-backflow groove 7. The anti-backflow component further includes a fifth communication hole 23 formed on the upper surface of the sliding column 20.

[0051] By providing the anti-backflow component, it is possible to facilitate the prevention of backflow when the hydraulic oil exits from the oil outlet port 8. And through the setting of the fourth telescopic spring 22, the sliding column 20 can be pulled downward by a certain distance before the oil exits, so that the clamping column 21 can be tightly closed with the reserved hole in the inner bottom wall of the oil outlet port 8, thereby avoiding the leakage of hydraulic oil when the oil outlet pressure of the hydraulic oil is insufficient.

[0052] As a supplement, when the oil exits, the hydraulic oil is transmitted to the inside of the anti-backflow groove 7 through the second communication hole 6. Due to the tight closure of the clamping column 21 and the oil outlet port 8, the hydraulic oil can only be transmitted downward through the fifth communication hole 23, so that the hydraulic oil is transmitted to the lower part of the sliding column 20. And with the increase of the hydraulic oil, a certain thrust can be generated on the sliding column 20. When the thrust reaches the deformation standard of the fourth telescopic spring 22, the sliding column 20 and the clamping column 21 can be pushed upward, so that the clamping column 21 releases the closure of the oil outlet port 8, and the hydraulic oil is discharged from the oil outlet port 8.

[0053] The magnetically controlled pressure regulating component includes a pressure regulating groove 24 formed inside the two-way hydraulic valve body 1, and a sixth communication hole 25 formed inside the two-way hydraulic valve body 1 and communicating with the anti-backflow groove 7 and the pressure regulating groove 24 respectively. The inner wall of the pressure regulating groove 24 is slidably connected with an extrusion block 26 for sealing and blocking the sixth communication hole 25. The magnetically controlled pressure regulating component further includes a second magnetic column 27 fixed on the bottom surface of the extrusion block 26, and a second electromagnet 28 embedded in the bottom surface of the two-way hydraulic valve body 1 and extending into the pressure regulating groove 24. The magnetically controlled pressure regulating component further includes a seventh communication hole 29 formed inside the two-way hydraulic valve body 1 and communicating with the pressure regulating groove 24 and the inner cavity of the sliding column 20 respectively.

[0054] By providing the magnetically controlled pressure regulating component, a second oil outlet can be opened again inside the oil outlet of the oil outlet port 8, and through the magnetic control effect, the driving force for closing the sixth communication hole 25 can be adjusted, and only when the hydraulic oil pressure reaches the standard of the oil outlet pressure, the hydraulic oil can be discharged from the second oil outlet.

[0055] As a supplement, when the hydraulic oil is in the anti-backflow groove 7, it can be transmitted downward through the action of the sixth communication hole 25, and then can extrude the extrusion block 26. When the extrusion force reaches the standard, the hydraulic oil can be transmitted from the extrusion block 26 to the inner cavity of the sliding column 20, which can not only assist the pushing of the sliding column 20, but also discharge the transmitted hydraulic oil from the second oil outlet through subsequent components.

[0056] As a supplement, and the driving mode of its magnetic control pressure regulating component is the same as that of the magnetic control speed regulating component, and it can be operated according to requirements.

[0057] The magnetic control pressure regulating component further includes an eighth communication hole 30 opened on the upper surface of the clamping column 21 and communicating with the inner cavity of the sliding column 20, and a fifth telescopic spring 31 located inside the pressure regulating groove 24. The upper and lower ends of the fifth telescopic spring 31 are respectively fixedly connected to the lower end of the second magnetic column 27 and the upper end of the second electromagnet 28.

[0058] By setting the magnetic control adjustment component and the setting of the eighth communication hole 30 in the magnetic control adjustment component, it is convenient to discharge oil from the second oil outlet, and it can also be connected to the pipeline according to requirements and enter the hydraulic system for the transmission of hydraulic oil.

[0059] As a supplement, the setting of the fifth telescopic spring 31 can facilitate the elastic support of the second magnetic column 27, so that the response speed of the extrusion block 26 during lifting can be improved through the dual adjustment of elasticity and magnetism, and further the response speed can be further improved compared with the single driving force of the traditional elasticity.

[0060] Working principle: When using the two-way hydraulic valve, first connect the oil inlet port 2 with the oil inlet pipe, so that the hydraulic oil can pass through the oil inlet port 2, the T-shaped cavity 3, the first communication hole 4, the speed regulating groove 5, the second communication hole 6 and the anti-backflow groove 7 in sequence and discharge the hydraulic oil from the oil outlet port 8.

[0061] If the oil outlet speed of the hydraulic oil is controlled, when the hydraulic oil is transmitted in the two-way hydraulic valve body 1, it can be connected with the external positive pulse current through the first electromagnet 11, so that the positive pulse current changes the magnetic size of the first electromagnet 11, so that the first electromagnet 11 and the first telescopic spring 12 can push the first magnetic column 10 and the speed regulating valve core 9 to lift in the speed regulating groove 5 through the dual control of magnetism and elasticity, and then can quickly adjust the size of the oil outlet between the speed regulating valve core 9 and the first communication hole 4, and through the magnitude of the positive pulse current input, it can accurately control the blocking situation of the speed regulating valve core 9 at the outlet of the first communication hole 4, and then can adjust the discharge speed of the hydraulic oil in the first communication hole 4.

[0062] When the hydraulic oil is transmitted from the speed regulating groove 5 and transmitted to the anti-backflow groove 7 through the second communication hole 6, the hydraulic oil can first enter the cavity of the anti-backflow groove 7 at the lower part of the sliding column 20 through the fifth communication hole 23, so that the hydraulic oil can push the sliding column 20 and the clamping column 21 to rise. As shown in Figure 3 and Figure 4 the state after the sliding column 20 rises in the figure, so that the hydraulic oil can be discharged through the connection between the clamping column 21 and the oil outlet port 8. This is the oil outlet state of the first oil outlet port.

[0063] When the hydraulic oil enters the cavity of the anti-backflow groove 7, it can continue to be transmitted to the sixth communication hole 25 and push and squeeze the extrusion block 26. When the extrusion force reaches a predetermined value, the extrusion block 26 can be pushed downward, so that the hydraulic oil can be transmitted and discharged through the seventh communication hole 29 and the eighth communication hole 30. This is the oil outlet state of the second oil outlet port.

[0064] By passing pulse currents of different magnitudes into the second electromagnet 28, the second electromagnet 28 can generate a magnetic repulsive force on the second magnetic column 27, so that the second magnetic column 27 drives the extrusion block 26 to move upward, thereby being able to control the extrusion force of the extrusion block 26 on the oil outlet end of the sixth communication hole 25, and further being able to facilitate the regulation of the discharge of the hydraulic oil only after reaching the predetermined pressure value.

[0065] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0066] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. A two-way speed regulating hydraulic valve group, characterized in that: The invention comprises a bidirectional hydraulic valve body (1), wherein the bidirectional hydraulic valve body (1) is provided with an oil inlet port (2), a T-shaped cavity (3), a first connecting hole (4), a speed regulating groove (5), a second connecting hole (6), an anti-backflow groove (7) and an oil outlet port (8) in sequence from right to left; The interior of the bidirectional hydraulic valve body (1) is provided with a magnetically controlled speed regulating component located inside the speed regulating groove (5), and an anti-backflow component located inside the anti-backflow groove (7); the interior of the T-shaped cavity (3) is provided with a pressure reducing component connected to the magnetically controlled speed regulating component; the interior of the bidirectional hydraulic valve body (1) is provided with a magnetically controlled pressure regulating component connected to the anti-backflow component.

2. A bidirectional speed regulating hydraulic valve group according to claim 1, characterized in that: The magnetically controlled speed regulating assembly comprises a speed regulating valve core (9) which is slidably matched with the inner wall of the speed regulating groove (5), and a first magnetic column (10) fixed to the lower end of the speed regulating valve core (9). The magnetically controlled speed regulating assembly also comprises a first electromagnet (11) which is embedded in the bottom surface of the bidirectional hydraulic valve body (1) and extends into the interior of the speed regulating groove (5).

3. A bidirectional speed regulating hydraulic valve group according to claim 2, characterized in that: The magnetically controlled speed regulating assembly further comprises a first telescopic spring (12) and a second telescopic spring (13) located inside the speed regulating groove (5), wherein the upper and lower ends of the first telescopic spring (12) are respectively fixedly connected to the bottom surface of the first magnetic column (10) and the inner bottom wall of the speed regulating groove (5), and the upper and lower ends of the second telescopic spring (13) are respectively fixedly connected to the inner top wall of the speed regulating groove (5) and the upper end of the speed regulating valve core (9).

4. A bidirectional speed regulating hydraulic valve group according to claim 1, characterized in that: The decompression assembly comprises a third telescopic spring (14) fixed to the top wall of the upper chamber of the T-shaped chamber (3), and a sliding plate (15) fixedly connected to the lower end of the third telescopic spring (14) and slidably matched with the inner wall of the upper chamber of the T-shaped chamber (3); the bottom surface of the sliding plate (15) is fixedly connected to a decompression valve core (16) slidably matched with the inner wall of the lower chamber of the T-shaped chamber (3), and a groove (17) is provided on the outer surface of the decompression valve core (16) and is used for the passage of hydraulic oil.

5. A bidirectional speed regulating hydraulic valve group according to claim 4, characterized in that: The pressure reducing assembly further comprises a third communicating hole (18) which is arranged inside the bidirectional hydraulic valve body (1) and is connected to the upper chamber of the T-shaped chamber (3) and the speed regulating groove (5); and a fourth communicating hole (19) which is arranged inside the bidirectional hydraulic valve body (1) and is connected to the T-shaped chamber (3) and the first communicating hole (4); the fourth communicating hole (19) is used for connecting the first communicating hole (4) with the upper and lower chambers of the T-shaped chamber (3) respectively.

6. A bidirectional speed regulating hydraulic valve group according to claim 1, characterized in that: The anti-backflow assembly comprises a sliding column (20) slidably matched with the inner wall of the anti-backflow groove (7), and a clamping column (21) fixed on the upper surface of the sliding column (20) and matched with the through hole on the bottom surface of the oil outlet port (8); a fourth telescopic spring (22) is arranged inside the reserved hole at the lower end of the sliding column (20), and the upper and lower ends of the fourth telescopic spring (22) are respectively fixedly connected to the inner top wall of the sliding column (20) and the inner bottom wall of the anti-backflow groove (7); the anti-backflow assembly also comprises a fifth connecting hole (23) opened on the upper surface of the sliding column (20).

7. A bidirectional speed regulating hydraulic valve group according to claim 6, characterized in that: The magnetically controlled pressure regulating assembly comprises a pressure regulating groove (24) provided inside a bidirectional hydraulic valve body (1), and a sixth connecting hole (25) provided inside the bidirectional hydraulic valve body (1) and connected to the anti-backflow groove (7) and the pressure regulating groove (24) respectively; an extrusion block (26) for sealing and blocking the sixth connecting hole (25) is slidably connected to the inner wall of the pressure regulating groove (24).

8. The bidirectional speed regulating hydraulic valve group according to claim 7, characterized in that: The magnetically controlled pressure regulating assembly further comprises a second magnetic column (27) fixed on the bottom surface of the extrusion block (26), and a second electromagnet (28) embedded in the bottom surface of the bidirectional hydraulic valve body (1) and extending into the pressure regulating groove (24). The magnetically controlled pressure regulating assembly further comprises a seventh connecting hole (29) provided in the bidirectional hydraulic valve body (1) and connected to the pressure regulating groove (24) and the inner cavity of the sliding column (20), respectively.

9. A bidirectional speed regulating hydraulic valve group according to claim 8, characterized in that: The magnetically controlled voltage-regulating assembly further comprises an eighth connecting hole (30) which is formed on the upper surface of the clamping column (21) and communicates with the inner cavity of the sliding column (20), and a fifth telescopic spring (31) which is located inside the voltage-regulating groove (24), wherein the upper and lower ends of the fifth telescopic spring (31) are respectively fixedly connected to the lower end of the second magnetic column (27) and the upper end of the second electromagnet (28).

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