A damping regulator and a shock absorber assembly

Abstract

The present invention belongs to the technical field of hydraulic oil flow control, and discloses a damping regulator. The interior of the housing has a receiving space; a balance piston is slidably connected to the housing inside the housing, and the balance piston divides the receiving space into a first space and a second space; any one of the side pipes is provided with a solenoid valve, and any one of the side pipes includes a first pipe orifice and a second pipe orifice; the first space has a make-up oil port and at least one first oil port; the first oil port is correspondingly arranged with the side pipe; the first pipe orifice is communicated with the first space through the first oil port, and the second pipe orifice is communicated with an external oil circuit; the second space has an air inlet; the pipe joint is communicated with the first space through the side pipe; when the balance piston contacts the end of the housing in the first space, the balance piston blocks the first oil port. The present invention can solve the drawback in the prior art that targeted tuning is required for different vehicle models by adjusting and controlling the hydraulic oil flow. The present invention also discloses a shock absorber assembly having the above damping regulator.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydraulic oil flow control, and particularly relates to a damping regulator and a shock absorber assembly. Background Art

[0002] For traditional shock absorbers, after being assembled to a vehicle, the damping force cannot be adjusted, resulting in a poor comfort experience for the driver and passengers. Therefore, currently, industry manufacturers have improved traditional shock absorbers to enable the shock absorbers to have the ability to adjust the damper. However, such shock absorbers have multiple valve systems, and when applied to different vehicle models, targeted valve system tuning is still required to ensure the damping performance of the shock absorbers. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention discloses a damping regulator, which can solve the drawback of the need for targeted tuning for different vehicle models in the prior art by adjusting and controlling the hydraulic oil flow. The present invention also discloses a shock absorber assembly having the above damping regulator.

[0004] The specific technical solution of the present invention is as follows:

[0005] A damping regulator, comprising:

[0006] A housing, the interior of the housing having an accommodation space;

[0007] A balance piston, the balance piston being slidably connected to the housing inside the housing, and the balance piston dividing the accommodation space into a first space and a second space;

[0008] A pipe joint; and

[0009] At least one side pipe, any one side pipe having an electromagnetic valve, and any one side pipe including a first pipe orifice and a second pipe orifice;

[0010] Wherein, the first space has a supplementary oil port and at least one first oil port; the first oil port is correspondingly arranged with the side pipe; the first pipe orifice communicates with the first space through the first oil port, and the second pipe orifice communicates with an external oil circuit; the second space has an air supplement port; the pipe joint communicates with the first space through the side pipe;

[0011] When the balance piston contacts the end of the housing in the first space, the balance piston blocks the first oil port.

[0012] The damping regulator uses an air inlet to supply gas to the second space and an oil filling port to supply hydraulic oil to the first space to maintain the pressure balance on both sides of the balance piston in the initial state of the damping regulator. When hydraulic oil is input through the pipe joint, the pressure in the first space is greater than that in the second space, thereby expanding the volume of the first space and reducing the volume of the second space so that the first space can accommodate more hydraulic oil. At this time, the hydraulic oil in the first space is output, and together with the original pressure in the second space, the balance piston is continuously pushed towards the end of the first space far from the second space, thus reducing the volume of the first space. In this way, the regulation of the hydraulic oil flow is achieved. In special cases, the flow rate of the hydraulic oil in the damping regulator can be increased through the oil filling port and / or the second pipe orifice to better achieve the specific regulation of the hydraulic oil flow rate.

[0013] Preferably, it includes:

[0014] At least two bypass pipes, and any one of the bypass pipes further includes a third pipe orifice. The at least two bypass pipes are connected in parallel through the third pipe orifice. The pipe joint is communicated with the at least two bypass pipes connected in parallel.

[0015] The pipe joint is communicated with the first oil port and an external mechanism. Therefore, when the third pipe orifices are connected in parallel to achieve the parallel connection of the bypass pipes, the confluence of the hydraulic oil can be realized, so that the hydraulic oil can flow into or out of the damping regulator better, thereby stably changing the flow pressure during the hydraulic flow regulation.

[0016] Preferably, it further includes:

[0017] An oil filling joint, the oil filling joint is communicated with the first space through the oil filling port, and the oil filling joint is provided with a first one-way valve;

[0018] Wherein, the oil filling joint and the oil outlet joint are arranged on the same side of the housing.

[0019] Arranging the oil filling joint and the pipe joint on the same side can make good use of the space occupied by the housing, so that when assembling additional structures, the overall volume of the damping regulator will not be changed greatly.

[0020] Preferably, the first space further has a second oil port;

[0021] It further includes:

[0022] An overflow valve seat, the overflow valve seat includes a first valve orifice, a second valve orifice and a third valve orifice. The first valve orifice is communicated with the first space through the second oil port. The second valve orifice is communicated with one of the bypass pipes. The third valve orifice is communicated with an external oil circuit;

[0023] The overflow valve seat is located on the side of the housing far from the oil filling joint.

[0024] When the hydraulic oil pressure in the first space is too high, the hydraulic oil enters the overflow valve from the second valve port and returns to the first space through the first valve port to avoid safety problems caused by excessive hydraulic oil pressure. At the same time, based on the excessive demand for hydraulic oil flow regulation, the hydraulic oil can flow into or out of the damping regulator through the opening and closing of the third valve port. In addition, the overflow valve seat, the oil replenishing joint, and the pipe joint are located at the same end of the housing, but the overflow valve seat and the oil replenishing joint are on different sides and different from the pipe joint, thereby reasonably utilizing the housing volume and avoiding the increase in the overall volume of the damping regulator caused by adding an overflow valve seat.

[0025] Preferably, the air replenishing port is communicated with an external inert gas device; a second one-way valve is provided at the air replenishing port.

[0026] The damping regulator can replenish inert gas into the second space through an external inert gas device and can replenish inert gas in real time when the second space does not reach the predetermined pressure, so as to replenish inert gas in time after inert gas leakage, thereby ensuring the pressure balance adjustment of the balance piston between the first space and the second space.

[0027] Preferably, the balance piston includes:

[0028] A plug body, the outer wall of the plug body contacts the inner wall of the housing; and

[0029] An enclosing member, the enclosing member is connected to the side of the plug body close to the first space, and the diameter of the enclosing member is smaller than the diameter of the plug body;

[0030] Wherein, in the radial projection of the housing, the oil replenishing port is located outside the enclosing member, the first oil port is located inside the enclosing member, and the second oil port partially overlaps the enclosing member.

[0031] Since the diameter of the plug body is larger than the diameter of the enclosing member, when the hydraulic oil enters the first space, the hydraulic oil can accumulate in the space between the plug body and the housing to increase the pressure in this space, thereby more stably opening the first oil port by using the larger contact area between the hydraulic oil and the plug body and avoiding the backflow of the hydraulic oil under pressure. When it is necessary to increase the hydraulic oil flow, since the first oil port is opened, during this process, the hydraulic oil is replenished or released through the oil replenishing port and the second oil port to better increase the hydraulic oil flow. And, since the second oil port partially overlaps the enclosing member, the overflow valve seat can achieve hydraulic oil pressure protection at different positions of the balance piston.

[0032] Preferably, the plug body is of a cup-shaped structure, and its opening is arranged at the end of the plug body far from the enclosing member.

[0033] Since there is an opening at the end of the plug body far from the enclosing member, inert gas can enter the inside of the plug body, thereby forming a higher air pressure and achieving a better shock absorption effect through the high air pressure.

[0034] Preferably, a convex block extending towards the outside is provided in the middle of the end face of the plug body connecting the enclosing member, and the convex block is located inside the enclosing member;

[0035] Wherein, in the state where the balance piston blocks the first oil port, the convex block contacts the end of the housing.

[0036] On the basis of the above technical solution, the convex block can relatively reduce the space volume between the plug body and the housing, reduce the time for the hydraulic oil to flush open the balance piston, and can also avoid the risk of the hydraulic oil being pressed back.

[0037] Preferably, a counterbore is provided on the convex block, and the counterbore communicates with the second space.

[0038] On the basis of providing the convex block, the counterbore can reduce the weight of the balance piston, thereby making it more conducive for the hydraulic oil to push the balance piston. In addition, the counterbore can concentrate the inert gas, making the translation of the balance piston more stable.

[0039] A shock absorber assembly, comprising:

[0040] The damping regulator as described above; and

[0041] A shock absorber body, and the shock absorber body communicates with a pipe joint.

[0042] The damping regulator is disposed outside the shock absorber body, so that the shock absorber body provided with the damping regulator does not need to spend too much time on damping adjustment.

[0043] Compared with the prior art, the present invention can use the damping regulator to adjust the hydraulic oil flow rate to avoid the need for the shock absorber to spend too much time on adjustment before leaving the factory; the present invention can stably adjust the pressure of the hydraulic oil after adjusting the flow rate to ensure the stability of the use state; the present invention can also utilize the characteristic that the gas has a stronger vibration absorption ability than the liquid to effectively absorb the vibration and noise brought by the high-speed switching of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a front view of the damping regulator in an embodiment of the present invention;

[0045] Figure 2 It is a left view of the damping regulator in an embodiment of the present invention;

[0046] Figure 3 It is for Figure 1 the A-A sectional view of;

[0047] Figure 4 It is for Figure 1 the B-B sectional view of;

[0048] Figure 5 It is forFigure 1 C-C cross-sectional view;

[0049] Figure 6 Top view of the damping regulator in the embodiment of the present invention;

[0050] Figure 7 is Figure 6 D-D cross-sectional view;

[0051] Figure 8 Schematic diagram of one state after moving the balance piston in the embodiment of the present invention;

[0052] Figure 9 is Figure 6 E-E cross-sectional view;

[0053] Figure 10 Schematic diagram of one direction of the balance piston in the embodiment of the present invention;

[0054] Figure 11 Schematic diagram of another direction of the balance piston in the embodiment of the present invention;

[0055] Figure 12 Schematic diagram of the balance piston covering the first oil outlet hole in the embodiment of the present invention;

[0056] Figure 13 Schematic diagram of the shock absorber body in the embodiment of the present invention;

[0057] Figure 14 is Figure 13 F-F cross-sectional view.

[0058] In the figure: 1 - housing; 2 - balance piston; 3 - pipe joint; 4 - side pipe; 41 - first pipe orifice; 42 - second pipe orifice; 43 - third pipe orifice; 5 - first space; 6 - second space; 7 - oil filling port; 8 - first oil port; 9 - air charging port; 10 - oil filling joint; 11 - second oil port; 12 - overflow valve seat; 1201 - first valve port; 1202 - second valve port; 1203 - third valve port; 13 - plug body; 14 - enclosing member; 15 - convex block; 16 - shock absorber body; 16 - shock absorber body; 1601 - piston body; 1602 - shock absorber cylinder; 1603 - piston rod; 1604 - first oil chamber; 1605 - second oil chamber; 1606 - upper support; 1607 - lower support; 1608 - first hole; 1609 - second hole; 1610 - first valve plate; 1611 - second valve plate. Detailed implementation manners

[0059] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the specific implementation manners.

[0060] AsFigures 1 to 9 As shown in the figure, a damping regulator includes a housing 1, a balance piston 2, a pipe joint 3, and at least one bypass pipe 4; an accommodation space is provided inside the housing 1; the balance piston 2 is slidably connected to the housing 1 inside the housing 1, and the balance piston 2 divides the accommodation space into a first space 5 and a second space 6; any one of the bypass pipes 4 has a solenoid valve, and any one of the bypass pipes 4 includes a first pipe orifice 41 and a second pipe orifice 42; the first space 5 has a supplementary oil port 7 and at least one first oil port 8; the first oil port 8 is correspondingly arranged with the bypass pipe 4; the first pipe orifice 41 is communicated with the first space 5 through the first oil port 8, and the second pipe orifice 42 is communicated with an external oil circuit; the second space 6 has an air supplement port 9; the pipe joint 3 is communicated with the first space 5 through the bypass pipe 4; when the balance piston 2 contacts the end of the housing 1 in the first space 5, the balance piston 2 blocks the first oil port 8.

[0061] In this embodiment, the damping regulator has a housing 1, and the housing 1 is arranged on an external device through a fixing member to achieve the effect of a specific function at a fixed position.

[0062] The outer side of the balance piston 2 contacts the inner side of the housing 1 and realizes a sliding connection. It can be understood that, in order to ensure that the first space 5 and the second space 6 are not communicated with each other, an O-ring and / or a wear-resistant ring are provided on the outer side of the balance piston 2.

[0063] Before using the damping regulator, it is necessary to supplement inert gas into the second space 6 through the air supplement port 9, and it is also necessary to supplement hydraulic oil into the first space 5 through the first oil port 8. At this time, the balance piston 2 is used to balance the pressure between the first space 5 and the second space 6. Therefore, a certain volume of hydraulic oil is stored in the damping regulator itself. Of course, in some other embodiments, no certain volume of hydraulic oil is stored in the damping regulator.

[0064] In this embodiment, the damping regulator is communicated with a shock absorber to realize the height adjustment of a vehicle suspension.

[0065] During the specific use process, when the shock absorber stretches, the hydraulic oil in the first space 5 uses the pressure of the inert gas in the second space 6 to push the balance piston 2 to move in the direction away from the second space 6 towards the first space 5, so as to supplement the hydraulic oil into the shock absorber well.

[0066] If the shock absorber compresses, the hydraulic oil of the shock absorber flows towards the damping regulator. At this time, the valve between the pipe joint 3 and the shock absorber is opened, so that the hydraulic oil in the shock absorber enters the first space 5, and the balance piston 2 is pushed to move in the direction away from the first space 5 towards the second space 6 by the hydraulic oil pressure, so as to realize the supplement of hydraulic oil to the damping regulator.

[0067] In the figure, the thick dashed line is the flow path of the hydraulic oil.

[0068] In the above process, this embodiment utilizes the characteristic that the gas absorption capacity is superior to that of the liquid, and can better ensure the stability of the above process.

[0069] In addition, in this embodiment, when the change requirement of the hydraulic oil flow rate is large, the flow rate of the hydraulic oil in the damping regulator can be further increased through the second pipe orifice 42 and / or the oil replenishing port 7.

[0070] It should be noted that in this embodiment, the oil replenishing port 7, the first oil port 8, and the air replenishing port 9 are all arranged at the end of the housing 1, thereby providing the most direct flow path for the balance piston 2 and providing a more direct acting force.

[0071] To better use this embodiment, it includes at least two bypass pipes 4; any one of the bypass pipes 4 further includes a third pipe orifice 43, and at least two bypass pipes 4 are connected in parallel through the third pipe orifice 43; the pipe joint 3 is communicated with at least two bypass pipes 4 connected in parallel.

[0072] In this embodiment, there are two first oil ports 8, and the first oil ports 8 are arranged corresponding to the bypass pipes 4 and are respectively communicated with the corresponding third pipe orifices 43. Then, in the state where two corresponding solenoid valves are both opened, the hydraulic oil flows out of the corresponding bypass pipes 4 through the two first oil ports 8, and then through the third pipe orifice 43, and converges through the flow path connected in parallel and is jointly discharged from the damping regulator. Thus, the connection with the shock absorber can be realized through the pipe joint 3, avoiding the setting of multiple pipelines.

[0073] Correspondingly, when the hydraulic oil enters the damping regulator, the hydraulic oil is branched from the pipe joint 3 to different third pipe orifices 43, so that the hydraulic oil enters the first space 5 through the corresponding bypass pipes 4.

[0074] In this embodiment, the pipe joint 3 and the housing 1 are integrally formed at the end of the housing 1.

[0075] To better use this embodiment, it further includes an oil replenishing joint 10; the oil replenishing joint 10 is communicated with the first space 5 through the oil replenishing port 7, and the oil replenishing joint 10 is provided with a first one-way valve; the oil replenishing joint 10 and the pipe joint 3 are arranged on the same side of the housing 1.

[0076] In this embodiment, the oil replenishing joint 10 and the housing 1 are integrally formed at the end of the housing 1, and it is communicated with the first space 5 through the oil replenishing port 7; while the pipe joint 3 is threadedly connected with the oil replenishing joint 10 to communicate with the bypass pipes 4 connected in parallel.

[0077] When the balance piston 2 opens the first oil port 8, the hydraulic oil flows through the solenoid valve to open the flow passage and enters the pipe joint 3, so that the hydraulic oil flows to the shock absorber. Similarly, under the action of the two-way pump body, the hydraulic oil can also flow from the shock absorber into the damping regulator through the pipe joint 3 on the basis of the solenoid valve being opened.

[0078] To better use this embodiment, a second oil port 11 is further provided in the first space 5; the damping regulator further includes an overflow valve seat 12; the overflow valve seat 12 includes a first valve port 1201, a second valve port 1202 and a third valve port 1203. The first valve port 1201 is communicated with the first space 5 through the second oil port 11. The second valve port 1202 is communicated with one of the bypass pipes 4, and the third valve port 1203 is communicated with the external oil circuit; the overflow valve seat 12 is located on the side of the housing 1 away from the oil filling joint 10.

[0079] It can be understood that an overflow valve is provided in the overflow valve seat 12. The overflow valve can ensure the safe use of the damping regulator. When the pressure of the hydraulic oil is too high, the overflow valve opens, and it can quickly release the pressure to ensure the use effect of the damping regulator.

[0080] The overflow valve seat 12 is arranged at the end of the housing 1, and is at the same end as the oil filling joint 10 and the pipe joint 3, and is located on the side of the housing 1 away from the pipe joint 3, thereby reducing the overall volume of the damping regulator.

[0081] In specific use, if the pressure of the hydraulic oil in the damping regulator is too high, the hydraulic oil enters one of the bypass pipes 4 through the second oil port 11. At this time, the hydraulic oil enters the overflow valve seat 12 through the second valve port 1202, opens the overflow valve, and then returns to the first space 5 through the first valve port 1201, thereby well reducing the working pressure of the hydraulic oil and ensuring the use effect of the damping regulator.

[0082] When the demand for hydraulic oil flow regulation is greater, the hydraulic oil can also be replenished into the first space 5 through the first valve port 1201 to better meet the hydraulic oil flow regulation requirements under different working conditions. It should be noted that if it is necessary to increase the flow of the hydraulic oil, the overflow valve seat 12, the bypass pipe 4, and the oil filling joint 10 need to be replaced with joints having a conduction function. It can be understood that this replacement action is carried out during the assembly stage of the damping regulator. In some other embodiments, the damping regulator does not need to be applied to a shock absorber for increasing the hydraulic oil flow. In this embodiment, the second pipe orifice 42 of the sealed bypass pipe 4 and the third valve port 1203 of the overflow valve seat 12 are sealed, and during the assembly stage of the damping regulator, after a certain volume of hydraulic oil is replenished into the first space 5, the oil filling joint 10 is sealed. At this time, the hydraulic oil can only achieve the corresponding hydraulic oil flow regulation through the pipe joint 3.

[0083] For better use of this embodiment, the air supplement port 9 is communicated with an external inert gas device; a second one-way valve is provided at the air supplement port 9.

[0084] The external inert gas device can supplement inert gas to the second space 6 to meet the stability requirements for hydraulic oil flow regulation. Generally, a corresponding pressure sensor is provided in the damping regulator. According to the real-time pressure feedback by the pressure sensor, the external inert gas can be inflated; the second one-way valve can well prevent the inert gas from flowing back.

[0085] Moreover, the supplemented inert gas can also achieve a good vibration absorption effect, thereby ensuring the use stability of the damping regulator.

[0086] As Figures 10 to 11 shown, for better use of this embodiment, the balance piston 2 includes a plug body 13 and an enclosing member 14; the outer wall of the plug body 13 contacts the inner wall of the housing 1; the enclosing member 14 is connected to one side of the plug body 13 close to the first space 5, and the diameter of the enclosing member 14 is smaller than that of the plug body 13; in the radial projection of the housing 1, the oil replenishing port 7 is located outside the enclosing member 14, the first oil port 8 is located inside the enclosing member 14, and the second oil port 11 partially overlaps with the enclosing member 14.

[0087] In this embodiment, the cross-sections of the plug body 13 and the enclosing member 14 are both circular, and the two are integrally formed. During specific use, hydraulic oil enters the first space 5 from the oil replenishing port 7. As the inflow amount increases, the hydraulic oil exerts pressure on the plug body 13, thereby pushing the balance piston 2 to move. At this time, the first oil port 8 covered by the enclosing member 14 is opened, enabling the hydraulic oil to flow between the first space 5 and the corresponding side pipe 4.

[0088] Therefore, during the specific use process, when the vehicle suspension is raised to the limit height, due to the opening and closing of the corresponding solenoid valve and the blockage of the first oil port 8, height maintenance can be well achieved.

[0089] In this embodiment, since the oil replenishing port 7 and the second oil port 11 are located outside the enclosing member 14, when replenishing hydraulic oil through the oil replenishing port 7, the hydraulic oil can directly flow into the first space 5, thereby replenishing the first space 5 with hydraulic oil.

[0090] Similarly, the second oil port 11 can well achieve pressure protection for the hydraulic oil.

[0091] It should be noted that in this embodiment, the enclosing member 14 has a certain wall width, so the unsubtracted 14 can cover part of the second oil port 11, such that when the enclosing member 14 contacts the end of the housing 1 in the first space 5, a part of the second oil port 11 is within the area enclosed by the enclosing member 14, a part is outside the area enclosed by the enclosing member 14, and the remaining part is shielded by the enclosing member 14.

[0092] For better use of this embodiment, the plug body 13 is of a cup-shaped structure, and its opening is provided at one end of the plug body 13 away from the enclosing member 14.

[0093] The plug body 13 is of a cup-shaped structure, and this structure can expand the second space 6, thereby increasing the storage amount of the inert gas, and thus improving the vibration absorption capacity.

[0094] For better use of this embodiment, the middle part of the end face where the plug body 13 connects to the enclosing member 14 has a convex block 15 extending towards its outside, and the convex block 15 is located inside the enclosing member 14; in the state where the balance piston 2 blocks the first oil port 8, the convex block 15 contacts the end of the housing 1.

[0095] The enclosing member 14 can be of any shape, and its purpose is to use the end of the enclosing member 14 away from the plug body 13 to contact the housing 1, such that when the enclosing member 14 contacts the housing 1, it can cover the first oil port 8 to achieve the interruption of the flow of hydraulic oil. In this state, the hydraulic oil in the first space 5 can only exist within the range enclosed by the enclosing member 14. In this embodiment, the cross-section of the enclosing member 14 is circular, which is similar to the cross-section of the plug body 13, and this structure can have the characteristic of being easier to manufacture on the basis of realizing the specific function.

[0096] It should be noted that the length of the convex block 15 is not greater than the width of the enclosing member 14, otherwise the coverage of the first oil port 8 cannot be achieved.

[0097] For better use of this embodiment, the convex block 15 is provided with a counterbore, and the counterbore communicates with the second space 6.

[0098] The counterbore is provided in the middle of the convex block 15 to enable the balance piston 2 in displacement to move more stably.

[0099] As can be seen from the above embodiment, the damping regulator communicates with the shock absorber to achieve vehicle shock absorption, and at the same time, the height of the vehicle suspension is adjusted through the shock absorber. Thus, it can be known that the damping regulator is applied to the shock absorber assembly.

[0100] The shock absorber assembly includes the damping regulator as described above, and a shock absorber body 16; the shock absorber body 16 communicates with the pipe joint 3.

[0101] Specifically, as Figure 13 andFigure 14 As shown, in this embodiment, the shock absorber body 16 includes a piston body 1601, a shock absorber cylinder body 1602, and a piston rod 1603; the shock absorber cylinder body 1602 is used to support the vehicle, and the shock absorber cylinder body 1602 is divided into a first oil chamber 1604 and a second oil chamber 1605 by the piston body 1601; one end of the piston rod 1603 extends into the shock absorber cylinder body 1602 and is fixedly connected to the piston body 1601; the piston body 1601 is slidably connected to the shock absorber cylinder body 1602; the piston rod 1603 is a hollow structure, one end thereof close to the piston body 1601 communicates with the second oil chamber 1605, the end thereof far from the piston body 1601 communicates with a damper regulator, and this end communicates with a fuel tank; the damper regulator communicates with the fuel tank through a first one-way valve.

[0102] In this embodiment, the shock absorber body 16 further includes an upper support 1606; the shock absorber cylinder body 1602 has a lower support 1607. The shock absorber body 16 is connected to the vehicle through the upper support 1606 and the lower support 1607 to realize the support of the shock absorber unit for the vehicle.

[0103] One end of the piston rod 1603 is arranged on the upper support 1606, the other end extends into the shock absorber cylinder body 1602, and communicates with the second oil chamber 1605 separated by the piston body 1601; the lower support 1607 is arranged at one end of the shock absorber cylinder body 1602 far from the upper support 1606.

[0104] The piston body 1601 is provided with a number of first holes 1608 and second holes 1609 which are inclined; a first valve plate 1610 and a second valve plate 1611 are arranged on the piston body 1601; the first valve plate 1610 is used to block one end of the first hole 1608 communicating with the first oil chamber 1604, and the second valve plate 1611 is used to block one end of the second hole 1609 communicating with the second oil chamber 1605.

[0105] Thus, during the shock absorption process of the vehicle movement, the piston rod 1603 drives the piston body 1601 to move, so that the space of the second oil chamber 1605 is reduced. At this time, the hydraulic oil flushes open the first valve plate 1610 through the first hole 1608 and enters the first oil chamber 1604 to realize the pressure balance between the first oil chamber 1604 and the second oil chamber 1605; similarly, when the piston rod 1603 drives the piston body 1601 to reset, the space of the first oil chamber 1604 is reduced. At this time, the hydraulic oil flushes open the second valve plate 1611 through the second hole 1609 and enters the second oil chamber 1605 to realize the pressure balance between the first oil chamber 1604 and the second oil chamber 1605. In the above process, by opening or closing the corresponding solenoid valve to increase or decrease the amount of hydraulic oil entering the second oil chamber 1605, the damping force of the shock absorber assembly can be adjusted.

[0106] During the process of changing the vehicle suspension height, the hydraulic oil enters and exits the second oil chamber 1605 through the piston rod 1603. Therefore, the actual hydraulic oil flow rate changed by the damping regulator is the hydraulic oil flow rate entering the second oil chamber 1605. When the suspension height is increased, the hydraulic oil enters the second oil chamber 1605, causing the piston body 1601 to move towards the end of the first oil chamber 1604 away from the second oil chamber 1605. Thus, the distance between the upper support 1606 and the lower support 1607 is extended, thereby increasing the suspension height. Similarly, when the hydraulic oil in the second oil chamber 1605 is pumped out and the hydraulic oil flows into the damping regulator, at this time, due to the pressure adjustment of the piston body 1601 on the first oil chamber 1604 and the second oil chamber 1605, the piston body 1601 moves towards the second oil chamber 1605 in the direction of the first oil chamber 1604, that is, the distance between the upper support 1606 and the lower support 1607 is reduced, thereby reducing the suspension height.

[0107] The above is only the preferred embodiment of the present invention. It should be noted that the above preferred embodiment should not be regarded as a limitation of the present invention. The protection scope of the present invention should be defined by the scope of the claims. For those of ordinary skill in the art of this technology, without departing from the spirit and scope of the present invention, several improvements and refinements can also be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A damping regulator, characterized in that, Comprising: A housing, the interior of the housing having a receiving space; A balance piston, the balance piston being slidably connected to the housing inside the housing, the balance piston dividing the receiving space into a first space and a second space; A pipe joint; And At least two side pipes, any one of the side pipes having a solenoid valve, any one of the side pipes including a first pipe orifice, a second pipe orifice, and a third pipe orifice, the at least two side pipes being connected in parallel through the third pipe orifice; the pipe joint communicating with the at least two side pipes connected in parallel; Wherein, the first space has a make-up oil port and at least one first oil port; the first oil port is correspondingly arranged with the side pipe; the first pipe orifice communicates with the first space through the first oil port, and the second pipe orifice communicates with an external oil circuit; the first space further has a second oil port; the second space has an air supplement port; the pipe joint communicates with the first space through the side pipe; When the balance piston contacts the end of the housing in the first space, the balance piston blocks the first oil port; Further comprising: A make-up oil joint, the make-up oil joint communicating with the first space through the make-up oil port, the make-up oil joint being provided with a first one-way valve; the make-up oil joint and the pipe joint are arranged on the same side of the housing; An overflow valve seat, the overflow valve seat including a first valve port, a second valve port, and a third valve port, the first valve port communicating with the first space through the second oil port, the second valve port communicating with one of the side pipes, and the third valve port communicating with an external oil circuit; the overflow valve seat is located on a side of the housing away from the make-up oil joint; The balance piston includes: A plug body, the outer wall of the plug body contacting the inner wall of the housing; and An enclosing member, the enclosing member being connected to a side of the plug body close to the first space, the diameter of the enclosing member being smaller than the diameter of the plug body; Wherein, in the radial projection of the housing, the make-up oil port is located outside the enclosing member, the first oil port is located inside the enclosing member, and the second oil port partially coincides with the enclosing member.

2. A damping regulator according to claim 1, wherein, The air supplement port communicates with an external inert gas device; the air supplement port is provided with a second one-way valve.

3. A damping regulator according to claim 1, characterized in that, The plug body is of a cup-shaped structure, and its opening is arranged at one end of the plug body away from the enclosing member.

4. A damping regulator according to claim 1, characterized in that, The middle of the end face of the plug body connecting the enclosing member has a convex block extending towards the outside thereof, and the convex block is located inside the enclosing member; Wherein, in the state where the balance piston blocks the first oil port, the convex block contacts the end of the housing.

5. A damping regulator according to claim 4, wherein The convex block is provided with a counterbore, and the counterbore communicates with the second space.

6. Shock absorber assembly, characterized in that, Comprising: A damping regulator according to any one of claims 1 to 5; And A shock absorber body, the shock absorber body communicating with the pipe joint.

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