Backpack type regulating valve and damping shock absorber

Abstract

The backpack type regulating valve comprises a valve seat and a pair of electromagnetic valves, a first valve groove and a second valve groove are formed in the valve seat in parallel, a first storage groove and a second storage groove are formed in the groove bottoms of the first valve groove and the second valve groove respectively, and a transverse flow channel is formed in the valve seat; the two electromagnetic valves are correspondingly embedded into the first valve groove and the second valve groove correspondingly, and the embedded ends of the electromagnetic valves are provided with containing bins which communicate with the two ends of the transverse flow channel correspondingly; a valve hole is formed in the end face of the embedded end of the electromagnetic valve and communicates with the containing bin, and a valve plug is arranged in the containing bin through a first spring. The side wall of the embedded end of the electromagnetic valve extends outwards to form a limiting edge, a one-way groove is formed in the limiting edge in the thickness direction, a plurality of one-way holes are formed in the one-way groove, an annular plug is slidably arranged in the one-way groove in a sleeved mode, and a second spring is arranged between the annular plug and the annular step in a clamped mode. The problem that double-valve control cannot be decoupled can be solved. The invention discloses a damping shock absorber which can solve the problem that the adjustment difficulty is sharply increased due to coupling of two electromagnetic valves.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorbers for motor vehicle chassis, and in particular to a backpack-type regulating valve and a damping shock absorber. Background Art

[0002] The stability of vehicle operation is mainly improved and adjusted by the suspension system installed in the chassis. As an important component of the suspension system, the damping shock absorber plays a vital role.

[0003] Some existing damping shock absorbers are realized in the form of dual valve electronic control (such as Figure 1 As shown in the figure, two solenoid valves are used to transfer and adjust the hydraulic oil during the recovery process and compression process of the piston rod. During the recovery process, the piston rod is extended, and the oil in the recovery chamber is pressed into the first solenoid valve by the piston. At the same time, the oil in the second solenoid valve is sucked into the compression chamber to cope with the change in the pressure in the compression chamber; conversely, during the compression process, the piston rod is pressed in, and the oil in the compression chamber is pressed into the second solenoid valve by the piston. At the same time, the oil in the first solenoid valve is sucked into the recovery chamber to cope with the change in the pressure in the recovery chamber.

[0004] In this process, the damping fluid, controlled by solenoid valves, has a single compression-recovery path. One solenoid valve is placed on the compression side, and the other on the recovery side, creating a dual-valve control system in series. Adjusting either solenoid valve, whether for recovery or compression, affects the damping force output of the damper due to the adjustment of the other valve. This requires combining the currents of both solenoid valves, making it difficult to adjust and match them. Summary of the Invention

[0005] The first object of the present invention is to provide a backpack-type regulating valve, which is used for a damping shock absorber and can solve the problem that dual-valve control cannot be decoupled.

[0006] A second object of the present invention is to provide a damping shock absorber that can solve the problem of a conventional dual-valve electronically controlled damping shock absorber that becomes difficult to adjust due to the coupling of two solenoid valves.

[0007] The present invention is achieved through the following technical solutions:

[0008] A backpack-type regulating valve includes: a valve seat having a first valve groove and a second valve groove; two solenoid valves, respectively embedded in correspondence with the first valve groove and the second valve groove; a transverse flow channel, opened inside the valve seat, and the two ends of the transverse flow channel are respectively connected to the first valve groove and the second valve groove; a first oil hole and a second oil hole, opened on the outer wall of the valve seat, and respectively connected to the first valve groove and the second valve groove.

[0009] Optionally, a first storage groove and a second storage groove are respectively formed at the bottom of the first valve groove and the second valve groove; the first oil hole and the second oil hole are respectively connected to the first storage groove and the second storage groove.

[0010] Optionally, the embedded end of the solenoid valve is provided with a mass storage tank, and the two mass storage tanks are respectively connected to the two ends of the transverse flow channel; the end face of the embedded end of the solenoid valve is provided with a valve hole, and the valve hole is connected to the mass storage tank, and a valve plug is provided in the mass storage tank through a first spring.

[0011] Optionally, the side wall of the embedded end of the solenoid valve extends outward to form a limiting edge, and the limiting edge is provided with a one-way groove along the thickness direction, and the bottom of the one-way groove is provided with a plurality of one-way holes along the circumferential direction, and a ring plug is slidably sleeved in the one-way groove, and a second spring is provided on the side of the ring plug facing away from the bottom of the one-way groove; all the one-way holes are connected with the transverse flow channel, all the one-way holes located in the first valve groove are connected with the first preservation groove in a one-way direction, and all the one-way holes located in the second valve groove are connected with the second preservation groove in a one-way direction.

[0012] Optionally, one end of the valve hole away from the valve plug diverges in a bell-mouth shape and is smoothly connected to the bottom of the one-way groove.

[0013] The camshaft of claim 1, wherein the camshaft has an inner wall portion for urging the camshaft to move relative to the piston cylinder, and an outer wall portion for urging the camshaft to move relative to the piston cylinder is provided with a camshaft which is provided with a camshaft for urging the camshaft to move relative to the piston cylinder.

[0014] Optionally, the valve seat is in the shape of a double cylinder connected by side walls, and the solenoid valve is cylindrical and coaxially embedded with the valve seat; the first oil hole and the second oil hole are respectively opened on the side wall of the first preservation tank and the side wall of the second preservation tank, and the first oil hole and the second oil hole are located on the same side of the valve seat; the damping cylinder is arranged parallel to the solenoid valve and is connected to the side of the valve seat where the first oil hole and the second oil hole are opened; the side wall of the damping cylinder is opened with a third oil hole and a fourth oil hole, and the third oil hole is arranged close to the separating valve, the inner end of the third oil hole is connected to the recovery interlayer, the outer end is connected to the first oil hole, and the inner end of the fourth oil hole is connected to the compression interlayer.

[0015] Optionally, the fourth oil hole is provided close to the separation valve.

[0016] Optionally, the first oil hole is provided in the middle of the valve seat, and the second oil hole is opened at the bottom of the valve seat near the second preservation groove, and along the axial direction of the solenoid valve, the distance between the first oil hole and the second oil hole is greater than the thickness of the separating valve; the valve seat is provided with a longitudinal flow channel along the axial direction of the solenoid valve, and one end of the longitudinal flow channel near the first preservation groove is connected to the bottom of the first preservation groove, and the other end is connected to the inner end of the first oil hole.

[0017] Optionally, the piston is provided with a plurality of first damping channels along the thickness direction, the piston is provided with a first damping groove axially on the side facing the recovery chamber, a first damping plug is embedded in the first damping groove, the first damping plug is connected to the bottom of the first damping groove through a third spring, a recovery plug plate is provided on the side of the first damping plug facing the recovery chamber, and the third spring is used to make the recovery plug plate squeeze and close all the first damping channels; the piston rod is fitted with a limit plate, and a damping gap is reserved between the limit plate and the piston.

[0018] Optionally, the separating valve has several second damping flow channels along the thickness direction, and the separating valve has a second damping groove axially opened on the side facing the recovery chamber, a second damping plug is embedded in the second damping groove, and the second damping plug is connected to the bottom of the second damping groove through a fourth spring, and a compression plug plate is provided on the side of the second damping plug facing the recovery chamber, and the fourth spring is used to make the compression plug plate squeeze and close all the second damping flow channels.

[0019] Optionally, a compensation cylinder is installed inside the damping cylinder, and the separation valve is clamped between the piston cylinder and the compensation cylinder; the compensation cylinder is unobstructed at one end toward the separation valve and is connected to all the second damping flow channels; the compression interlayer is between the outer wall of the compensation cylinder and the inner wall of the damping cylinder.

[0020] Optionally, a compensation plug is slidably mounted in the compensation cylinder, and the compensation plug separates the compensation cylinder into an air cavity and a compensation cavity, and the compensation cavity is communicated with all the second damping flow channels.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] The backpack-type regulating valve provided by the present invention realizes the decoupling of two solenoid valves under the premise of ensuring that the oil can be smoothly transferred in both directions by setting various structures and components. Specifically, when the oil enters from the first oil hole, it flows into the first storage tank. As the first storage tank is filled with oil, the internal pressure increases. When the first spring is squeezed to press the valve plug open, the oil is pressed into the volume chamber of the solenoid valve located in the first valve tank through the valve hole, and then transferred to the volume chamber of the solenoid valve located in the second valve tank through the transverse flow channel. The valve plug in the volume chamber is compressed by the first spring and cannot be reversely flushed from the inside of the volume chamber. Therefore, the pressure in the reservoir gradually increases until the oil squeezes the second spring, pressing the annular plug open. The oil then flows through the one-way hole into the second storage tank and eventually out of the second oil hole. During this process, the valve plug of the solenoid valve in the second valve slot does not resist the oil through the first spring. Only the valve plug of the solenoid valve in the first valve slot resists the oil through the first spring, thus achieving decoupling of the two solenoid valves. Similarly, when the oil enters the second oil hole, it eventually flows out of the first oil hole through a symmetrical oil path, resisting only the valve plug of the solenoid valve in the second valve slot. Therefore, this backpack-type regulating valve achieves decoupling of the control of the two solenoid valves while ensuring that the oil can be transferred between the two solenoid valve systems. This allows the two solenoid valves to be independently adjusted to adjust the parameters of the recovery or compression process. At the same time, since the backpack-type regulating valve is attached to the outer shell of the damping shock absorber, it has a more compact structural layout, occupies less radial and axial space, and is more conducive to the layout of the motor vehicle chassis; it adopts a structure without an intermediate cylinder to construct a simpler and shorter flow path structure, reduce manufacturing costs, and has less assembly difficulty; it adopts parallel dual control channels, and the two channels can be independently controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0024] Figure 1 A cross-sectional view of a dual-valve electronically controlled damping shock absorber according to the prior art;

[0025] Figure 2 A schematic diagram of a backpack-type regulating valve provided in an embodiment of the present invention;

[0026] Figure 3 An assembly diagram of a backpack-type regulating valve provided in an embodiment of the present invention;

[0027] Figure 4 A half-section schematic diagram of a backpack-type regulating valve provided in an embodiment of the present invention;

[0028] Figure 5 A partial cross-sectional view of a backpack-type regulating valve provided in an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of a damping vibration absorber provided in an embodiment of the present invention;

[0030] Figure 7 An assembly diagram of a damping vibration absorber provided in an embodiment of the present invention;

[0031] Figure 8 A half-section diagram of a damping vibration absorber provided in an embodiment of the present invention;

[0032] Figure 9 A partial enlarged view of a separation valve of a damping shock absorber provided in an embodiment of the present invention;

[0033] Figure 10 A partial enlarged view of the piston of the damping shock absorber provided in an embodiment of the present invention;

[0034] Figure 11 A partially enlarged view of the separation valve of the damping shock absorber provided in an embodiment of the present invention.

[0035] Markings and corresponding parts names in the accompanying drawings:

[0036] 10-valve seat; 11-first valve slot; 111-first storage slot; 1111-first oil hole; 12-second valve slot; 121-second storage slot; 1211-second oil hole; 13-annular step; 14-transverse flow channel; 15-longitudinal flow channel; 20-solenoid valve; 21-mass container; 22-valve hole; 23-valve plug; 24-first spring; 25-limiting edge; 251-one-way slot; 2511-one-way hole; 26-ring plug; 27-second spring; 30-piston cylinder; 301-recovery chamber; 302-compression chamber; 303-recovery outlet; 31-piston rod; 3 11-piston; 3111-first damping channel; 312-first damping groove; 313-first damping plug; 314-third spring; 315-restoring plug plate; 316-limiting plate; 40-damping cylinder; 41-conversion interlayer; 411-restoring interlayer; 412-compression interlayer; 42-third oil hole; 43-fourth oil hole; 50-partitioning valve; 51-compression channel; 52-second damping channel; 53-second damping groove; 54-second damping plug; 55-fourth spring; 56-compression plug plate; 60-compensating cylinder; 61-compensating plug; 62-air cavity; 63-compensating cavity. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0038] Please refer to Figures 2 to 5 The present embodiment provides a backpack type regulating valve, including a valve seat 10, wherein the valve seat 10 is parallel to a first valve groove 11 and a second valve groove 12, and the bottoms of the first valve groove 11 and the second valve groove 12 are respectively provided with a first preservation groove 111 and a second preservation groove 121, wherein the size of the first preservation groove 111 is smaller than that of the first valve groove 11, and the size of the second preservation groove 121 is smaller than that of the second valve groove 12, so as to form an annular step 13; the valve seat 10 is provided with a transverse flow channel 14, and the two ends of the transverse flow channel 14 are respectively connected to the valve seat 10. The first valve slot 11 and the second valve slot 12 are connected; the second includes a pair of solenoid valves 20, the two solenoid valves 20 are respectively embedded in the first valve slot 11 and the second valve slot 12, and the embedded end of the solenoid valve 20 is provided with a mass storage bin 21, and the two mass storage bins 21 are respectively connected to the two ends of the transverse flow channel 14; the end face of the embedded end of the solenoid valve 20 is provided with a valve hole, and the valve hole is connected to the mass storage bin 21, and a valve plug 23 is provided in the mass storage bin 21 through a first spring 24, and the size of the valve plug 23 is larger than the size of the valve hole 22 The first spring 24 is used to squeeze the valve plug 23 to close the valve hole 22; the side wall of the embedded end of the solenoid valve 20 extends outward to form a limit edge 25, and the limit edge 25 is used to match and overlap with the annular step 13. A one-way groove 251 is opened along the thickness direction on the side of the limit edge 25 close to the annular step 13. The bottom of the one-way groove 251 is annular and has a plurality of one-way holes 2511. A ring plug 26 is slidably sleeved in the one-way groove 251. A second spring 27 is sandwiched between the ring plug 26 and the annular step 13 to prevent the valve plug 23 from closing. The ring plug 26 squeezes and closes all the one-way holes 2511; the ends of all the one-way holes 2511 away from the annular step 13 are connected to the transverse flow channel 14; all the one-way holes 2511 located in the first valve groove 11 are connected to the first retaining groove 111, and the groove wall of the first retaining groove 111 is provided with a first oil hole 1111; all the one-way holes 2511 located in the second valve groove 12 are connected to the second retaining groove 121, and the groove wall of the second retaining groove 121 is provided with a second oil hole 1211.

[0039] The backpack regulating valve provided by the present invention realizes the decoupling of the two solenoid valves 20 under the premise of ensuring that the oil can be smoothly transferred in both directions by setting the above-mentioned structures and components. Specifically, when the oil enters from the first oil hole 1111, it flows into the first storage tank 111. As the first storage tank 111 is filled with oil, the internal pressure increases. When the first spring 24 is squeezed to press the valve plug 23 open, the oil is pressed into the volume chamber 21 of the solenoid valve 20 located in the first valve groove 11 through the valve hole 22, and then transferred to the volume chamber 21 of the solenoid valve 20 located in the second valve groove 12 through the transverse flow channel 14. The valve plug 23 in the volume chamber 21 is pressed by the first spring 24 and cannot be reversely opened from the inside of the volume chamber 21. The internal pressure of this reservoir 21 gradually increases until the oil squeezes the second spring 27, pressing the annular plug 26 open. The oil then flows through the one-way hole 2511 into the second holding tank 121 and ultimately out of the second oil hole 1211. During this process, the valve plug 23 of the solenoid valve 20 in the second valve sump 12 does not resist the oil through the first spring 24. Only the valve plug 23 of the solenoid valve 20 in the first valve sump 11 resists the oil through the first spring 24, effectively decoupling the two solenoid valves 20. Similarly, when oil enters the second oil hole 1211, it flows through a symmetrical oil path and ultimately out of the first oil hole 1111, resisting only the valve plug 23 of the solenoid valve 20 in the second valve sump 12. Therefore, while ensuring that oil can be transferred between the two solenoid valve systems, this backpack-type regulating valve achieves decoupling of the control of the two solenoid valves, allowing the two solenoid valves to be independently adjusted to adjust the parameters of the recovery or compression process.

[0040] It should be noted that the above-mentioned solenoid valve 20 can adopt any type of solenoid valve in the existing technology. In theory, the first spring 24 and the valve plug 23 are also its matching components. The adjustment thereof is not limited to setting-type adjustment such as adjustment of the initial compression amount of the first spring 24, but can also be replacement-type adjustment such as adjustment of the elastic modulus of the first spring 24 and adjustment of the size of the valve plug 23.

[0041] To facilitate smooth flow of oil accumulated in the first or second storage tank 111, 121 into the valve hole 22 and into the mass storage chamber 21, the end of the valve hole 22, distal from the valve plug 23, diverges in a bell-shaped pattern and smoothly connects to the bottom of the one-way groove 251. This bell-shaped divergent valve hole 22 provides a smooth convergence of oil.

[0042] Please Figures 2 to 5 Based on the reference Figures 6 to 11The present embodiment further provides a damping shock absorber, comprising: a piston cylinder 30, wherein a piston rod 31 is slidably mounted in the piston cylinder 30, wherein a piston 311 of the piston rod 31 divides the piston cylinder 30 into a recovery chamber 301 and a compression chamber 302, wherein a plurality of recovery outlets 303 are opened on the side wall of the head end of the piston cylinder 30, and all the recovery outlets 303 are connected to the recovery chamber 301; a second damping cylinder 40 is mounted on the outside of the piston cylinder 30, and a conversion interlayer 41 is reserved between the inner wall of the damping cylinder 40 and the outer wall of the piston cylinder 30; a third separation valve 50 is provided at the rear of the piston cylinder 30. At the end, the outer wall of the separating valve 50 is sealedly connected to the inner wall of the damping cylinder 40 to separate the conversion interlayer 41 into a recovery interlayer 411 and a compression interlayer 412, and the recovery interlayer 411 is connected to the recovery chamber 301 through the recovery outlet 303. The separating valve 50 has a plurality of compression flow channels 51 along the thickness direction, and the two ends of the compression flow channels 51 are respectively connected to the compression chamber 302 and the compression interlayer 412; the fourth includes any one of the above-mentioned backpack-type regulating valves, the recovery interlayer 411 is connected to the first oil hole 1111 near the separating valve 50, and the compression interlayer 412 is connected to the second oil hole 1211.

[0043] The damping shock absorber provided by the present invention solves the problem of increased difficulty in adjustment of the existing dual-valve electronically controlled damping shock absorber due to the coupling of the two solenoid valves by providing the above-mentioned structures and components. Specifically, during the recovery process, the piston rod 31 gradually extends, and the piston 311 squeezes the oil in the recovery chamber 301. The oil flows through the recovery outlet 303 to the recovery interlayer 411 and flows along the recovery interlayer 411, and then flows into the first storage tank 111 through the first oil hole 1111. As the first storage tank 111 is filled with oil, the internal pressure increases, and when the first spring 24 is squeezed to press the valve plug 23 open, the oil is pressed into the volume chamber 21 of the solenoid valve 20 located in the first valve groove 11 through the valve hole 22, and then transferred to the volume chamber 21 of the solenoid valve 20 located in the second valve groove 12 through the transverse flow channel 14. The valve plug 23 in the volume chamber 21 is pressed by the first spring 24 and cannot be reversely flushed from the inside of the volume chamber 21. Therefore, the volume chamber 2 The internal pressure gradually increases until the oil squeezes the second spring 27 and presses the ring plug 26 open. The oil flows into the second storage groove 121 through the one-way hole 2511 and flows from the second oil hole 1211 to the compression interlayer 412. Then, under the action of the internal pressure of the compression chamber 302, the oil is sucked into the compression chamber 302 through the compression flow channel 51, thereby compensating the internal pressure of the compression chamber 302. Conversely, during the compression process, the piston rod 31 is gradually pressed back, and the piston 311 squeezes the compression chamber 302. The oil in the compression chamber is pressed into the compression interlayer 412 through the compression flow channel 51, then enters the second storage tank 121 through the second oil hole 1211, enters the mass storage chamber 21 through the valve hole 22, and enters the mass storage chamber 21 of the solenoid valve 20 located in the first valve tank 11 through the transverse flow channel 14. It is then pressed into the first storage tank 111 through the one-way hole 2511, flows into the recovery interlayer 411 through the first oil hole 1111, and is sucked into the recovery chamber 301 through the recovery outlet 303. During operation, whether in the recovery or compression process, only one solenoid valve 20 is operating at the same time. The two solenoid valves 20 are decoupled. Therefore, independent adjustment of the solenoid valve 20 in the first valve tank 11 does not affect the damping effect during the compression process. Similarly, independent adjustment of the solenoid valve 20 in the second valve tank 12 does not affect the damping effect during the recovery process.

[0044] It should be noted that, except for the open sliding connection between the damping cylinder 40 and the piston rod 31, the rest of the damping cylinder 40 is fully enclosed; except for the open sliding connection between the piston cylinder 30 and the piston rod 31 and the restoration outlet 303, the rest of the damping cylinder 40 is fully enclosed; a sealing structure is provided or a sealing treatment is performed at the joints between the damping cylinder 40 and the piston cylinder 30 and the piston rod 31.

[0045] In order to further optimize the structure of the damping shock absorber, the valve seat 10 is in the shape of a double cylinder with connected side walls, and the solenoid valve 20 is cylindrical and coaxially embedded with the valve seat 10; the first oil hole 1111 and the second oil hole 1211 are respectively opened in the side wall of the first preservation groove 111 and the side wall of the second preservation groove 121, and the first oil hole 1111 and the second oil hole 1211 are located on the same side of the valve seat 10; the damping cylinder 40 is arranged parallel to the solenoid valve 20 and connected to the side of the valve seat 10 where the first oil hole 1111 and the second oil hole 1211 are opened; the side wall of the damping cylinder 40 is opened with a third oil hole 42 and a fourth oil hole 43, the third oil hole 42 is arranged near the separation valve 50, the inner end of the third oil hole 42 is connected to the recovery interlayer 411, and the outer end is connected to the first oil hole 1111, and the inner end of the fourth oil hole 43 is connected to the compression interlayer 412.

[0046] Through the above arrangement, the valve seat 10 is positioned in close contact with the damping cylinder 40, and both solenoid valves 20 are arranged parallel to the damping cylinder 40, significantly optimizing the structure of the damping shock absorber and making it easier to install and apply to the vehicle chassis. By arranging the third oil hole 42 close to the separation valve 50, the outlet of the recovery interlayer 411 (i.e., the third oil hole 42) is positioned as close to the compression interlayer as possible, thereby maximizing the proximity of the first oil hole 1111 and the second oil hole 1211 in the valve seat 10. This provides a structural basis for shortening the axial length of the valve seat 10 and the solenoid valve 20. This minimized axial length of the valve seat 10 and the solenoid valve 20 further facilitates installation and disassembly.

[0047] Preferably, in order to further enable the first oil hole 1111 and the second oil hole 1211 opened on the valve seat 10 to be as close as possible, the fourth oil hole 43 is provided close to the separation valve 50 .

[0048] Since the valve seat 10 (and the solenoid valve 20) are arranged in parallel with the damping cylinder 40, and the recovery interlayer 411 and the compression interlayer 412 are separated by the separation valve 50, the third oil hole 42 and the fourth oil hole 43 must have a certain distance in the axial direction of the damping cylinder 40 (the minimum distance is the thickness of the separation valve 50). In order to cooperate with the third oil hole 42 and the fourth oil hole 43 in this position without providing additional communication auxiliary parts such as hoses, the first oil hole 1111 is provided in the middle of the valve seat 10, and the second oil hole 1111 is provided in the middle of the valve seat 10. The oil hole 1211 is opened at the bottom of the second preservation groove 121 near the valve seat 10. Along the axial direction of the solenoid valve 20, the distance between the first oil hole 1111 and the second oil hole 1211 is greater than the thickness of the separation valve 50; the valve seat 10 is opened with a longitudinal flow channel 15 along the axial direction of the solenoid valve 20, and one end of the longitudinal flow channel 15 near the first preservation groove 111 is connected to the bottom of the first preservation groove 111, and the other end is connected to the inner end of the first oil hole 1111.

[0049] Through the above-mentioned arrangement, the setting positions of the first oil hole 1111 and the second oil hole 1211 are first defined so that their setting positions can match and align with the setting positions of the third oil hole 42 and the fourth oil hole 43. On this basis, by providing the longitudinal flow channel 15, although the first oil hole 1111 is opened in the middle of the valve seat 10, it can still be connected to the first preservation groove 111 located at the end through the longitudinal flow channel 15, thereby ensuring the normal working state of the valve seat 10.

[0050] In order to further optimize the damping effect during the movement of the piston 311, the piston 311 is provided with a plurality of first damping channels 3111 along the thickness direction, and the piston 311 is provided with a first damping groove 312 axially on the side facing the recovery chamber 301, and a first damping plug 313 is embedded in the first damping groove 312, and the first damping plug 313 is connected to the bottom of the first damping groove 312 through a third spring 314, and a recovery plug plate 315 is provided on the side of the first damping plug 313 facing the recovery chamber 301, and the third spring 314 is used to make the recovery plug plate 315 squeeze and close all the first damping channels 3111; the piston rod 31 is fitted with a limit plate 316, and a damping gap is reserved between the limit plate 316 and the piston 311.

[0051] Through the above arrangement, during the recovery process, the piston 311 moves toward the recovery chamber 301, and the third spring 314 pulls the recovery plug plate 315 toward the first damping groove 312, closing the first damping flow channel 3111. At the same time, the oil pressure in the recovery chamber 301 squeezes the recovery plug plate 315, which can further ensure the closure of the first damping flow channel 3111; but on the contrary, during the compression process, the piston 311 moves toward the compression chamber 302. Although the third spring 314 pulls the recovery plug plate 315 toward the first damping groove 312, closing the first damping flow channel 3111, the oil and air in the compression chamber 302 flow toward one end of the compression chamber 302 through the first damping flow channel 3111, squeezing the recovery plug plate 315, thereby overcoming the pulling force of the third spring 314 and pressing the recovery plug plate 315 open, thereby making the transition of the damping force during the compression process smoother.

[0052] Similarly, in order to further improve the smoothness of the damping force during the restoration process, the separating valve 50 is provided with a plurality of second damping channels 52 along the thickness direction, and the separating valve 50 is provided with a second damping groove 53 axially on the side facing the restoration chamber 301, and a second damping plug 54 is embedded in the second damping groove 53, and the second damping plug 54 is connected to the bottom of the second damping groove 53 through a fourth spring 55, and a compression plug plate 56 is provided on the side of the second damping plug 54 facing the restoration chamber 301, and the fourth spring 55 is used to make the compression plug plate 56 squeeze and close all the second damping channels 52.

[0053] The working principle of this part is basically the same as that of the mechanism in the previous paragraph, with the difference being that the compression plug plate 56 may open during the recovery process but not during the compression process.

[0054] Preferably, in order to provide structural support for the separating valve 50 and to compensate and balance the air pressure in the compression chamber 302, a compensation cylinder 60 is installed in the damping cylinder 40, and the separating valve 50 is sandwiched between the piston cylinder 30 and the compensation cylinder 60; the compensation cylinder 60 is unobstructed toward one end of the separating valve 50 and is connected to the entire second damping flow channel 52, and the compensation cylinder 60 is filled with air; the compression interlayer 412 is between the outer wall of the compensation cylinder 60 and the inner wall of the damping cylinder 40.

[0055] Further preferably, a compensating plug 61 is slidably mounted within the compensating cylinder 60. The compensating plug 61 divides the compensating cylinder 60 into an air chamber 62 and a compensating chamber 63. The compensating chamber 63 is connected to all of the second damping flow channels 52. The air chamber 62 is filled with air at a certain pressure to support the sliding of the compensating plug 61 under pressure changes.

[0056] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A backpack type regulating valve, characterized in that: include: A valve seat (10) having a first valve slot (11) and a second valve slot (12); Two solenoid valves (20) are respectively embedded in the first valve slot (11) and the second valve slot (12); a transverse flow channel (14) disposed inside the valve seat (10), wherein both ends of the transverse flow channel (14) are respectively connected to the first valve groove (11) and the second valve groove (12); The first oil hole (1111) and the second oil hole (1211) are formed on the outer wall of the valve seat (10) and are respectively connected to the first valve groove (11) and the second valve groove (12).

2. The backpack type regulating valve according to claim 1, characterized in that: The bottoms of the first valve groove (11) and the second valve groove (12) are respectively provided with a first preservation groove (111) and a second preservation groove (121); The first oil hole (1111) and the second oil hole (1211) are respectively connected to the first storage tank (111) and the second storage tank (121).

3. The backpack type regulating valve according to claim 2, characterized in that: The embedded end of the solenoid valve (20) is provided with a mass storage bin (21), and the two mass storage bins (21) are respectively connected to the two ends of the transverse flow channel (14); The end surface of the embedded end of the electromagnetic valve (20) is provided with a valve hole, the valve hole is communicated with the mass storage chamber (21), and a valve plug (23) is provided in the mass storage chamber (21) via a first spring (24).

4. The backpack type regulating valve according to claim 3, characterized in that: The side wall of the embedded end of the solenoid valve (20) extends outward to form a limit edge (25), the limit edge (25) is provided with a one-way groove (251) along the thickness direction, the bottom of the one-way groove (251) is provided with a plurality of one-way holes (2511) along the circumferential direction, a ring plug (26) is slidably mounted in the one-way groove (251), and a second spring (27) is provided on the side of the ring plug (26) away from the bottom of the one-way groove (251); All of the one-way holes (2511) are in communication with the transverse flow channel (14), all of the one-way holes (2511) located in the first valve groove (11) are in one-way communication with the first preservation groove (111), and all of the one-way holes (2511) located in the second valve groove (12) are in one-way communication with the second preservation groove (121).

5. The backpack type regulating valve according to claim 4, characterized in that: One end of the valve hole away from the valve plug (23) diverges in a bell-mouth shape and is smoothly connected to the bottom of the one-way groove (251).

6. A damping vibration absorber, characterized in that: include: A piston cylinder (30), wherein a piston rod (31) is slidably mounted in the piston cylinder (30), and a piston (311) on the piston rod (31) divides the piston cylinder (30) into a recovery chamber (301) and a compression chamber (302). A plurality of recovery outlets (303) are formed on a side wall at the head end of the piston cylinder (30), and all of the recovery outlets (303) are in communication with the recovery chamber (301); A damping cylinder (40), wherein the damping cylinder (40) is sleeved on the outside of the piston cylinder (30), and a conversion interlayer (41) is reserved between the inner wall of the damping cylinder (40) and the outer wall of the piston cylinder (30); A separation valve (50) is provided at the rear end of the piston cylinder (30). The outer wall of the separation valve (50) is sealedly connected to the inner wall of the damping cylinder (40) to separate the conversion interlayer (41) into a recovery interlayer (411) and a compression interlayer (412). The recovery interlayer (411) is connected to the recovery chamber (301) through the recovery outlet (303). The separation valve (50) is provided with a plurality of compression flow channels (51) along the thickness direction. The two ends of the compression flow channels (51) are respectively connected to the compression chamber (302) and the compression interlayer (412). According to the backpack-type regulating valve according to any one of claims 1 to 5, the recovery interlayer (411) is connected to the first oil hole (1111) near the separation valve (50), and the compression interlayer (412) is connected to the second oil hole (1211).

7. The damping vibration absorber according to claim 6, characterized in that: The valve seat (10) is in the shape of a double cylinder with connected side walls, the solenoid valve (20) is in the shape of a cylinder and is coaxially embedded with the valve seat (10), and the first oil hole (1111) and the second oil hole (1211) are located on the same side of the valve seat (10); The damping cylinder (40) is arranged in parallel with the solenoid valve (20) and is connected to a side of the valve seat (10) where the first oil hole (1111) and the second oil hole (1211) are opened; The side wall of the damping cylinder (40) is provided with a third oil hole (42) and a fourth oil hole (43). The third oil hole (42) is arranged close to the separation valve (50). The inner end of the third oil hole (42) is communicated with the recovery interlayer (411), and the outer end is communicated with the first oil hole (1111). The inner end of the fourth oil hole (43) is communicated with the compression interlayer (412).

8. The damping vibration absorber according to claim 7, characterized in that: The fourth oil hole (43) is provided close to the separation valve (50).

9. The damping vibration absorber according to claim 8, characterized in that: The first oil hole (1111) is provided in the middle of the valve seat (10), and the second oil hole (1211) is opened at the bottom of the valve seat (10) near the second storage groove (121). Along the axial direction of the solenoid valve (20), the distance between the first oil hole (1111) and the second oil hole (1211) is greater than the thickness of the separation valve (50); The valve seat (10) is provided with a longitudinal flow channel (15) along the axial direction of the solenoid valve (20); one end of the longitudinal flow channel (15) close to the first storage groove (111) is communicated with the bottom of the first storage groove (111), and the other end is communicated with the inner end of the first oil hole (1111).

10. The damping vibration absorber according to claim 6, characterized in that: The piston (311) is provided with a plurality of first damping flow channels (3111) along the thickness direction, and a first damping groove (312) is provided along the axial direction on the side of the piston (311) facing the recovery chamber (301), a first damping plug (313) is embedded in the first damping groove (312), and the first damping plug (313) is connected to the bottom of the first damping groove (312) through a third spring (314), and a recovery plug plate (315) is provided on the side of the first damping plug (313) facing the recovery chamber (301), and the third spring (314) is used to make the recovery plug plate (315) squeeze and close all the first damping flow channels (3111); The piston rod (31) is sleeved with a limit plate (316), and a damping gap is reserved between the limit plate (316) and the piston (311).

11. The damping vibration absorber according to claim 6, characterized in that: The separation valve (50) is provided with a plurality of second damping flow channels (52) along the thickness direction, and a second damping groove (53) is provided axially on the side of the separation valve (50) facing the recovery chamber (301), a second damping plug (54) is embedded in the second damping groove (53), and the second damping plug (54) is connected to the bottom of the second damping groove (53) through a fourth spring (55), and a compression plug plate (56) is provided on the side of the second damping plug (54) facing the recovery chamber (301), and the fourth spring (55) is used to make the compression plug plate (56) squeeze and close all the second damping flow channels (52).

12. The damping vibration absorber according to claim 11, characterized in that: A compensation cylinder (60) is mounted inside the damping cylinder (40), and the separation valve (50) is sandwiched between the piston cylinder (30) and the compensation cylinder (60); One end of the compensation cylinder (60) facing the separation valve (50) is unobstructed and communicates with all of the second damping flow channels (52); The compression interlayer (412) is located between the outer wall of the compensation cylinder (60) and the inner wall of the damping cylinder (40).

13. The damping vibration absorber according to claim 12, characterized in that: A compensation plug (61) is slidably mounted inside the compensation cylinder (60), and the compensation plug (61) separates the compensation cylinder (60) into an air cavity (62) and a compensation cavity (63), and the compensation cavity (63) is communicated with all of the second damping flow channels (52).

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