Built-in bidirectional adjustable direct proportion electromagnetic valve for shock absorber

Abstract

The invention discloses a built-in two-way adjustable direct proportion solenoid valve for a shock absorber, and relates to the field of solenoid valves, the built-in two-way adjustable direct proportion solenoid valve comprises a hydraulic structure and an electromagnetic structure which are assembled together, the hydraulic structure comprises an outer shell, and two sets of one-way valve structures A are arranged on the end face, away from the electromagnetic structure, of the outer shell and used for enabling fluid to flow in a one-way mode; main control structures are arranged on the side face and the end face of the outer shell, an oil path block is arranged in the outer shell and used for adjusting the flow direction of fluid so that a first circulation mode and a second circulation mode can be formed in the outer shell, and the fluid flows in from the main control structures on the side face of the outer shell in the first circulation mode and flows out from the one-way valve structure A after passing through the oil path block; according to the second circulation mode, the electromagnetic valve flows in from the main control structure on the end face of the outer shell and flows out from the one-way valve structure A after passing through the oil path block, and the direct proportion electromagnetic valve is formed and can adapt to the shock absorber to be used.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic valves, in particular to a built-in two-way adjustable proportional electromagnetic valve for a shock absorber. Background Art

[0002] The automobile suspension system is an important component related to automobile safety. The shock absorber is an important part of the suspension system. It can be used to reduce the impact of spring rebound and road surface, and can improve the driving smoothness and comfort of the car. The shock absorber contains a solenoid valve. Most solenoid valves on the market are divided into built-in and external types. At present, the main application of built-in solenoid valves is inverse proportional solenoid valves, and there is no mature application of direct proportional solenoid valves. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a built-in two-way adjustable proportional solenoid valve for a shock absorber, so as to solve the problems of the prior art.

[0004] The objective of the present invention is achieved through the following technical solutions: a built-in two-way adjustable proportional solenoid valve for a shock absorber, comprising a hydraulic structure and an electromagnetic structure assembled together, characterized in that the hydraulic structure comprises an outer shell, the end face of the outer shell away from the electromagnetic structure is provided with two sets of one-way valve structures A, the one-way valve structure A is used to make the fluid flow in one direction, the side and end face of the outer shell are provided with main control structures, respectively controlling the compression and recovery of the shock absorber, the main control structure comprises a main control seat, a main control end and a main spring, and the outer shell is provided with an installation at the position where the main control structure is provided The main control seat is interference-fitted in the mounting groove, the main control end is slidably arranged in the mounting groove, the main spring is arranged at one end of the main control end away from the main control seat, an oil circuit block is arranged in the outer shell, the oil circuit block is used to adjust the flow direction of the fluid so that a first flow mode and a second flow mode are formed in the outer shell, the first flow mode flows in from the main control structure on the side of the outer shell, and flows out from the one-way valve structure A after passing through the oil circuit block; the second flow mode flows in from the main control structure on the end face of the outer shell, and flows out from the one-way valve structure A after passing through the oil circuit block.

[0005] Furthermore, the one-way valve structure A includes a one-way valve seat, a tower spring and a first steel ball. The end surface of the outer shell is provided with a flow channel opening at the position where the one-way valve structure A is set. The one-way valve seat is interference fitted in the flow channel opening. The first steel ball is assembled in the flow channel opening. The spring is located between the one-way valve seat and the first steel ball.

[0006] Furthermore, a main control sleeve is fixedly installed in the outer shell, and a regulating seat, a spring stop seat and a piston sleeve are sequentially installed in the main control sleeve along the direction away from the electromagnetic structure, a secondary spring is arranged between the spring stop seat and the regulating seat, a piston rod is fixed to one end of the regulating seat close to the piston sleeve, and a piston cavity is opened at one end of the piston sleeve close to the piston rod, and the size of the piston cavity gradually decreases along the direction away from the piston rod.

[0007] Furthermore, the oil circuit block is located between the main control sleeve and the main control structure, and the oil circuit block is sequentially connected with a first switching flow channel, a second switching flow channel, a third switching flow channel, a fourth switching flow channel, a fifth switching flow channel, and a sixth switching flow channel, and a second steel ball is slidably arranged in the fourth switching flow channel.

[0008] Further, a second flow channel is provided on the side wall of the outer shell, and the second flow channel is connected to the flow channel opening; a first flow channel, a third flow channel, a fourth flow channel, a fifth flow channel, a sixth flow channel, and a seventh flow channel are provided in the outer shell; a main control first flow channel is provided on the main control seat; a main control end first flow channel and a main control end second flow channel are provided on the main control end; a piston sleeve first flow channel, a piston sleeve second flow channel, and a piston sleeve third flow channel are provided on the piston sleeve; a stop seat first flow channel is provided on the spring stop seat; a control seat first flow channel is provided on the regulating seat; a main control sleeve first flow channel and a main control sleeve second flow channel are provided on the main control sleeve, wherein the two ends of the first flow channel are divided into The second flow channel of the main control sleeve is respectively connected with one of the flow channel openings, the two ends of the third flow channel are respectively connected with the second flow channel of the main control sleeve and the other flow channel opening, the fourth flow channel and the fifth flow channel are respectively opened on the side and end surface of the outer shell, the main control first flow channel, the main control end first flow channel is connected, the main control end first flow channel, the sixth flow channel, the reversing first flow channel, the reversing second flow channel, the reversing third flow channel, the reversing fourth flow channel, the sixth flow channel, the reversing fifth flow channel, the reversing sixth flow channel, the piston sleeve first flow channel, the piston sleeve second flow channel, the piston sleeve third flow channel, the stop seat first flow channel, the regulating seat first flow channel, the main control sleeve first flow channel, the main control sleeve second flow channel are connected in sequence.

[0009] Furthermore, the first flow channel of the piston sleeve is evenly distributed along the circumferential direction of the piston sleeve, the first flow channel of the piston sleeve is connected to the piston cavity, the first flow channel of the stop seat is evenly distributed circumferentially on the end surface of the spring stop seat, and the first flow channel of the regulating seat is evenly distributed circumferentially on the end surface of the regulating seat.

[0010] Furthermore, a main control sleeve sealing ring is provided on the mating end surface of the main control sleeve, and a main control end gasket is installed between the main control end and the main control seat.

[0011] Furthermore, the electromagnetic structure includes a limiting structure, a driving assembly, a guiding structure, an embedded body, a magnetic seat and a coil assembly. The embedded body is assembled in the outer body, the limiting structure is assembled in the embedded body and contacts the main control sleeve, the guiding structure is assembled in the bottom hole of the embedded body, the driving assembly is slidably assembled in the guiding structure, the coil assembly is sleeved on the embedded body, a magnetic seat is arranged between the coil assembly and the embedded body, the magnetic seat is threadedly connected to the outer body and presses the coil assembly, and the regulating seat is located on the moving path of the driving assembly.

[0012] Furthermore, a coil assembly sealing ring is sleeved on the coil assembly.

[0013] Furthermore, an outer shell sealing ring is mounted on the outer shell.

[0014] The beneficial effects of the present invention are:

[0015] 1. The first flow mode and the second flow mode can be adjusted bidirectionally through the action of the oil block, achieving a bidirectional adjustable effect. Then, through the setting of the one-way valve structure A, the fluid can only flow in one direction, so that the first flow mode and the second flow mode formed in the outer shell both flow out from the one-way valve structure A to form a proportional solenoid valve. When the coil assembly receives a larger current, that is, the larger the electromagnetic force, the smaller the gap between the piston rod and the piston sleeve will be, so that a linear product performance curve can be achieved.

[0016] 2. The side and end faces of the outer shell are equipped with main control structures to control the compression and recovery of the shock absorber respectively. Therefore, the double valve core design can adjust the hydraulic linearity of the two flow modes (i.e., shock absorber compression and recovery) respectively to achieve the purpose of two-way regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a built-in two-way adjustable proportional solenoid valve for a shock absorber according to the present invention;

[0018] Figure 2 It is a right side view of a built-in two-way adjustable proportional solenoid valve for a shock absorber of the present invention;

[0019] Figure 3 for Figure 2 Middle BB section view;

[0020] Figure 4 for Figure 2 Middle AA section view;

[0021] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 6 for Figure 3 Enlarged view of point C in the middle;

[0023] Figure 7 for Figure 4 Enlarged view of point D in the middle;

[0024] In the figure, 1-outer shell, 2-one-way valve seat, 3-tower spring, 4-first steel ball, 5-main control sleeve sealing ring, 6-inlay sealing ring, 7-auxiliary spring, 8-regulating seat, 9-limiting structure, 10-driving assembly, 11-guide structure, 13-coil assembly sealing ring, 14-second one-way valve seat, 15-main control sleeve, 16-outer shell sealing ring, 17-piston sleeve, 18-spring stop seat, 19-piston rod, 20-inlay, 22-coil assembly, 23-magnetic seat, 25-main control seat, 26-main control end, 27-main spring, 28-main control seat gasket, 29-oil block, 30-second steel ball, 41-second main control end Flow channel, 42-the first flow channel of the main control end, 43-the first flow channel of the main control, 44-the first flow channel of the reversing, 45-the second flow channel of the main control sleeve, 46-the first flow channel of the main control sleeve, 47-the first flow channel of the regulating seat, 48-the third flow channel of the piston sleeve, 49-the first flow channel of the stop seat, 50-the first flow channel of the piston sleeve, 51-the second flow channel of the piston sleeve, 52-the second flow channel of the reversing, 53-the third flow channel of the reversing, 54-the sixth flow channel of the reversing, 55-the fifth flow channel of the reversing, 56-the fourth flow channel of the reversing, 57-the sixth flow channel, 58-the seventh flow channel, 59-the first flow channel, 60-the second flow channel, 61-the third flow channel, 71-the fourth flow channel, 72-the fifth flow channel. DETAILED DESCRIPTION

[0025] Embodiment 1

[0026] like Figures 1 to 7As shown, a built-in two-way adjustable proportional solenoid valve for a shock absorber includes a hydraulic structure and an electromagnetic structure assembled together, the hydraulic structure includes an outer shell 1, and the end surface of the outer shell 1 away from the electromagnetic structure is provided with two groups of one-way valve structures A, the one-way valve structure A includes a one-way valve seat 2, a tower spring 3 and a first steel ball 4, the end surface of the outer shell 1 is provided with a flow channel opening at the position where the one-way valve structure A is provided, the one-way valve seat 2 is interference-fitted in the flow channel opening, the first steel ball 4 is installed in the flow channel opening, and the spring 3 is located between the one-way valve seat 2 and the first steel ball 4, the side and end surface of the outer shell 1 are provided with a main control structure, which respectively controls the compression and recovery of the shock absorber, the main control structure includes a main control seat 25, a main control end 26 and a main spring 27, the outer shell 1 is provided with a mounting groove at the position where the main control structure is provided, the main control seat 25 is interference-fitted in the mounting groove, the main control end 26 is slidably arranged in the mounting groove, and the end of the main control end 26 away from the main control seat 25 is provided with a main spring Spring 27, an oil circuit block 29 is arranged in the outer shell 1, and the oil circuit block 29 is used to adjust the flow direction of the fluid so that a first flow mode and a second flow mode are formed in the outer shell 1. The first flow mode flows in from the main control structure on the side of the outer shell 1, and flows out from the one-way valve structure A after passing through the oil circuit block 29; the second flow mode flows in from the main control structure on the end face of the outer shell 1, and flows out from the one-way valve structure A after passing through the oil circuit block 29. The first flow mode and the second flow mode can be adjusted bidirectionally through the action of the oil circuit block 29, thereby achieving a bidirectional adjustable effect. Then, through the setting of the one-way valve structure A, the fluid can only flow in one direction, so that the first flow mode and the second flow mode formed in the outer shell both flow out from the one-way valve structure A, forming a proportional solenoid valve, so that the proportional solenoid valve can be adapted for use on the shock absorber; in specific implementation, in order to facilitate the distinction and display, the valve seats of the two one-way valve structures A are respectively marked as the one-way valve seat 2 and the second one-way valve seat 14.

[0027] Embodiment 2

[0028] Based on the first embodiment, Figures 1 to 7As shown, a main control sleeve 15 is fixedly installed in the outer shell 1, and a regulating seat 8, a spring stop seat 18 and a piston sleeve 17 are sequentially installed in the main control sleeve 15 in a direction away from the electromagnetic structure. A secondary spring 7 is arranged between the spring stop seat 18 and the regulating seat 8. A piston rod 19 is fixed to the end of the regulating seat 8 close to the piston sleeve 17. A piston cavity is opened at the end of the piston sleeve 17 close to the piston rod 19. The size of the piston cavity gradually decreases in the direction away from the piston rod 19. An oil circuit block 29 is installed in the outer shell 1. The oil circuit block 29 is located between the main control sleeve 15 and the main control structure. The oil circuit block 29 is connected in sequence A first reversing flow channel 44, a second reversing flow channel 52, a third reversing flow channel 53, a fourth reversing flow channel 56, a fifth reversing flow channel 55, and a sixth reversing flow channel 54 are provided, a second steel ball 30 is slidably arranged in the fourth reversing flow channel 56, a second flow channel 60 is provided on the side wall of the outer shell 1, and the second flow channel 60 is connected to the flow channel port, a first flow channel 59, a third flow channel 61, a fourth flow channel 71, a fifth flow channel 72, a sixth flow channel 57, and a seventh flow channel 58 are provided in the outer shell 1, a main control first flow channel 43 is provided on the main control seat 25, and a main control terminal 26 is provided with a main control terminal first flow channel 4 2 and the second flow channel 41 of the main control end, the piston sleeve 17 is provided with a first flow channel 50 of the piston sleeve, a second flow channel 51 of the piston sleeve and a third flow channel 48 of the piston sleeve, the spring stop seat 18 is provided with a first flow channel 49 of the stop seat, the regulating seat 8 is provided with a first flow channel 47 of the regulating seat, the main control sleeve 15 is provided with a first flow channel 46 of the main control sleeve and a second flow channel 45 of the main control sleeve, wherein the two ends of the first flow channel 59 are respectively connected to the second flow channel 45 of the main control sleeve and one of the flow channel openings, the two ends of the third flow channel 61 are respectively connected to the second flow channel 45 of the main control sleeve and another flow channel opening, the fourth flow channel 71 is connected to the fifth flow channel 72 and the fifth flow channel 73. 72 are respectively opened on the side and end surface of the outer shell 1, the main control first flow channel 43, the main control end first flow channel 42 are connected, the main control end first flow channel 41, the sixth flow channel 58, the reversing first flow channel 44, the reversing second flow channel 52, the reversing third flow channel 53, the reversing fourth flow channel 56, the sixth flow channel 57, the reversing fifth flow channel 55, the reversing sixth flow channel 54, the piston sleeve first flow channel 50, the piston sleeve second flow channel 51, the piston sleeve third flow channel 48, the stop seat first flow channel 49, the regulating seat first flow channel 47, the main control sleeve first flow channel 46, and the main control sleeve second flow channel 45 are sequentially connected;The first circulation mode: the fluid flows into the main control first flow channel 43 of the main control seat 25 through the side of the solenoid valve, and the fluid exerts a hydraulic pressure on the end surface of the main control end 26 to push the main control end 26 to move downward to overcome the spring force, so that the main control first flow channel 43 of the main control seat 25 is connected with the fifth flow channel 72 of the outer shell 1, and part of the fluid flows into the seventh flow channel 58 of the outer shell 1 through the main control end first flow channel 42 of the main control end 26 and the main control end second flow channel 41 of the main control end 26, and then flows into the reversing first flow channel 44 of the oil circuit block 29, the reversing second flow channel 52 and the reversing third flow channel 53 of the oil circuit block 29, and the second steel ball 30 located in the reversing fourth flow channel 56 of the oil circuit block 29 is subjected to the hydraulic pressure to move the outer shell 1. The sixth flow channel 57 of the housing 1 is closed, so that it is disconnected from the fourth reversing flow channel 56, so that the third reversing flow channel 53, the fourth reversing flow channel 56 and the fifth reversing flow channel 55 of the oil circuit block 29 are connected, and then the fluid flows from the sixth reversing flow channel 54 to the first flow channel 50 of the piston sleeve 17 and flows into the second flow channel 51 of the piston sleeve and the third flow channel 48 of the piston sleeve, and then flows through the first flow channel 49 of the stop seat of the spring stop seat 18 to the first flow channel 47 of the regulating seat 8, and then flows to the first flow channel 46 of the main control sleeve 15 and the second flow channel 45 of the main control sleeve, and finally flows to the third flow channel 61 of the outer housing 1 and flows out through the center hole of the one-way valve seat 2 of the one-way valve structure A;

[0029] Second circulation mode: the fluid enters the product through the regulating structure set on the end face of the product, the fluid generates hydraulic pressure to compress the spring, part of the flow flows in from the fourth flow channel 71 of the outer shell 1, and the remaining flow enters the fourth reversing flow channel 56 of the oil circuit block 29 through the sixth flow channel 57 of the outer shell 1. The second steel ball 30 located in the fourth reversing flow channel 56 closes the third reversing flow channel 53 after being subjected to the hydraulic pressure, so that it is disconnected from the fourth flow channel 56 of the oil circuit block, thereby connecting the sixth flow channel 57 of the outer shell 1 to the fourth reversing flow channel 56 and The fifth reversing flow channel 55 is connected, and then the fluid flows from the sixth reversing flow channel 54 to the first flow channel 50 of the piston sleeve 17 and flows into the second flow channel 51 of the piston sleeve and the third flow channel 48 of the piston sleeve, and then flows through the first flow channel 49 of the stop seat of the spring stop seat 18 to the first flow channel 47 of the regulating seat of the regulating seat 8, and then flows to the first flow channel 46 of the main control sleeve 15 and the second flow channel 45 of the main control sleeve, and finally flows to the third flow channel 61 of the outer shell 1 and flows out through the center hole of the one-way valve seat 2 of the one-way valve structure A.

[0030] Furthermore, the first flow channel 50 of the piston sleeve is evenly distributed along the circumferential direction of the piston sleeve 17, the first flow channel 50 of the piston sleeve is connected to the piston cavity, the first flow channel 49 of the stop seat is evenly distributed circumferentially on the end face of the spring stop seat 18, the first flow channel 47 of the regulating seat is evenly distributed circumferentially on the end face of the regulating seat 8, and the mating end face of the main control sleeve 15 is provided with a main control sleeve sealing ring 5 to improve the sealing performance of the mating end face of the main hole sleeve 15, and a main control end gasket 28 is assembled between the main control end 26 and the main control seat 25.

[0031] Embodiment 3

[0032] Based on the second embodiment, Figures 1 to 4 As shown, the electromagnetic structure includes a limiting structure 9, a driving assembly 10, a guiding structure 11, an embedded body 20, a magnetic seat 23 and a coil assembly 22. The embedded body 20 is assembled in the outer shell 1, the limiting structure 9 is assembled in the embedded body 20 and contacts the main control sleeve 15, the guiding structure 11 is assembled in the bottom hole of the embedded body 20, the driving assembly 10 is slidably assembled in the guiding structure 11, the coil assembly 22 is sleeved on the embedded body 20, and a magnetic seat 23 is arranged between the coil assembly 22 and the embedded body 20. The magnetic seat 23 is threadedly connected to the outer shell 1 and presses the coil assembly 22. The regulating seat 8 is located on the moving path of the driving assembly 10. After the coil assembly 22 is energized, an electromagnetic force is generated to push the driving assembly 10 to move to the left to separate the regulating seat 8 from the end face of the limiting structure 9, and the fluid can flow through the gap therein. When the current is larger, that is, the electromagnetic force is larger, the gap between the piston rod 19 and the piston sleeve 17 will be smaller, so that the product performance curve can be linear; the second steel ball 30 of the oil circuit block 29 is subjected to the liquid pressure and moves to the left or right, thereby changing the flow direction of the fluid.

[0033] Furthermore, a coil assembly sealing ring 13 is sleeved on the coil assembly 22, and a shell sealing ring 16 is sleeved on the shell 1, so as to improve the sealing performance of the assembly surface.

Claims

1. A built-in two-way adjustable proportional solenoid valve for a shock absorber, comprising a hydraulic structure and an electromagnetic structure assembled together, characterized in that: The hydraulic structure comprises an outer shell (1), and the end surface of the outer shell (1) away from the electromagnetic structure is provided with two sets of one-way valve structures A, and the one-way valve structure A is used to make the fluid flow in one direction. The side surface and the end surface of the outer shell (1) are provided with main control structures, which respectively control the compression and recovery of the shock absorber. The main control structure comprises a main control seat (25), a main control end (26) and a main spring (27). The outer shell (1) is provided with a mounting groove at the position where the main control structure is provided, and the main control seat (25) is interference-fitted in the mounting groove, and the main control end (26) is slidably arranged in the mounting groove. The main spring (27) is arranged at one end of the main control end (26) away from the main control seat (25), and an oil circuit block (29) is arranged in the outer shell (1). The oil circuit block (29) is used to adjust the flow direction of the fluid so that a first flow mode and a second flow mode are formed in the outer shell (1). The first flow mode flows in from the main control structure on the side of the outer shell (1), passes through the oil circuit block (29), and then flows out from the one-way valve structure A; the second flow mode flows in from the main control structure on the end face of the outer shell (1), passes through the oil circuit block (29), and then flows out from the one-way valve structure A.

2. A built-in two-way adjustable proportional solenoid valve for a shock absorber according to claim 1, characterized in that: The one-way valve structure A comprises a one-way valve seat (2), a tower spring (3) and a first steel ball (4); the end surface of the outer shell (1) is provided with a flow passage at a position where the one-way valve structure A is arranged; the one-way valve seat (2) is interference-fitted in the flow passage; the first steel ball (4) is fitted in the flow passage; and the spring (3) is located between the one-way valve seat (2) and the first steel ball (4).

3. A built-in two-way adjustable proportional solenoid valve for a shock absorber according to claim 1, characterized in that: A main control sleeve (15) is fixedly installed in the outer shell (1), and a regulating seat (8), a spring stop seat (18) and a piston sleeve (17) are sequentially installed in the main control sleeve (15) in a direction away from the electromagnetic structure, and a secondary spring (7) is arranged between the spring stop seat (18) and the regulating seat (8). A piston rod (19) is fixed to one end of the regulating seat (8) close to the piston sleeve (17), and a piston cavity is formed at one end of the piston sleeve (17) close to the piston rod (19), and the size of the piston cavity gradually decreases in a direction away from the piston rod (19).

4. A built-in two-way adjustable proportional solenoid valve for a shock absorber according to claim 3, characterized in that: The oil circuit block (29) is located between the main control sleeve (15) and the main control structure. The oil circuit block (29) is provided with a first reversing flow channel (44), a second reversing flow channel (52), a third reversing flow channel (53), a fourth reversing flow channel (56), a fifth reversing flow channel (55), and a sixth reversing flow channel (54) in sequence. A second steel ball (30) is slidably arranged in the fourth reversing flow channel (56).

5. A built-in two-way adjustable proportional solenoid valve for a shock absorber according to claim 4, characterized in that: The side wall of the outer shell (1) is provided with a second flow channel (60), the second flow channel (60) being connected to the flow channel opening; the outer shell (1) is provided with a first flow channel (59), a third flow channel (61), a fourth flow channel (71), a fifth flow channel (72), a sixth flow channel (57), and a seventh flow channel (58); the main control seat (25) is provided with a main control first flow channel (43); the main control terminal (26) is provided with a main control terminal first flow channel (42) and a main control terminal first flow channel (43) connected to the main control terminal The second flow channel (41) is provided on the piston sleeve (17), the first flow channel (50) of the piston sleeve, the second flow channel (51) of the piston sleeve and the third flow channel (48) of the piston sleeve are provided, the first flow channel (49) of the stop seat is provided on the spring stop seat (18), the first flow channel (47) of the control seat is provided on the regulating seat (8), the first flow channel (46) of the main control sleeve and the second flow channel (45) of the main control sleeve are provided on the main control sleeve (15), wherein the first flow channel (59) The two ends of the third flow channel (61) are respectively connected to the second flow channel (45) of the main control sleeve and one of the flow channel openings, the two ends of the third flow channel (61) are respectively connected to the second flow channel (45) of the main control sleeve and the other flow channel opening, the fourth flow channel (71) and the fifth flow channel (72) are respectively opened on the side and end surface of the outer shell (1), the main control first flow channel (43) and the main control end first flow channel (42) are connected, the main control end first flow channel (41), the sixth flow channel (58), and the reversing first flow channel (61) are respectively connected to the main control end first flow channel (41), the sixth flow channel (58), and the reversing first flow channel (61) The piston sleeve first flow channel (44), the second reversing flow channel (52), the third reversing flow channel (53), the fourth reversing flow channel (56), the sixth flow channel (57), the fifth reversing flow channel (55), the sixth reversing flow channel (54), the first flow channel (50) of the piston sleeve, the second flow channel (51) of the piston sleeve, the third flow channel (48) of the piston sleeve, the first flow channel (49) of the stop seat, the first flow channel (47) of the regulating seat, the first flow channel (46) of the main control sleeve, and the second flow channel (45) of the main control sleeve are sequentially connected and arranged.

6. A built-in two-way adjustable proportional solenoid valve for a shock absorber according to claim 5, characterized in that: The first flow channel (50) of the piston sleeve is evenly distributed along the circumferential direction of the piston sleeve (17), and the first flow channel (50) of the piston sleeve is connected to the piston cavity. The first flow channel (49) of the stop seat is evenly distributed on the circumference of the end surface of the spring stop seat (18), and the first flow channel (47) of the regulating seat is evenly distributed on the circumference of the end surface of the regulating seat (8).

7. A built-in two-way adjustable proportional solenoid valve for a shock absorber according to claim 1, characterized in that: A main control sleeve sealing ring (5) is provided on the mating end surface of the main control sleeve (15), and a main control end gasket (28) is installed between the main control end (26) and the main control seat (25).

8. The built-in two-way adjustable proportional solenoid valve for shock absorber according to claim 3, characterized in that: The electromagnetic structure comprises a limiting structure (9), a driving assembly (10), a guiding structure (11), an embedded body (20), a magnetic conductive seat (23) and a coil assembly (22); the embedded body (20) is assembled in the outer shell (1); the limiting structure (9) is assembled in the embedded body (20) and contacts the main control sleeve (15); the guiding structure (11) is assembled in the bottom hole of the embedded body (20); the driving assembly (10) is slidably assembled in the guiding structure (11); the coil assembly (22) is sleeved on the embedded body (20); a magnetic conductive seat (23) is arranged between the coil assembly (22) and the embedded body (20); the magnetic conductive seat (23) is threadedly connected to the outer shell (1) and presses the coil assembly (22); the regulating seat (8) is located on the moving path of the driving assembly (10).

9. A built-in two-way adjustable proportional solenoid valve for a shock absorber according to claim 8, characterized in that: The coil assembly (22) is sleeved with a coil assembly sealing ring (13).

10. A built-in two-way adjustable proportional solenoid valve for a shock absorber according to claim 1, characterized in that: An outer shell sealing ring (16) is sleeved on the outer shell (1).

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