Shock absorber and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses a shock absorber and a vehicle, and the shock absorber comprises a shock absorber body provided with a piston rod; the shock absorber upper support is connected to the piston rod, and the shock absorber upper support comprises an upper support shell; the lifting mechanism is arranged on the shock absorber upper support, and the lifting mechanism comprises a shell assembly and a separation part; the shell assembly is arranged on the peripheral side of the upper support shell in a surrounding mode, and a liquid storage cavity is defined by the shell assembly and the upper support shell together. The separation part is arranged in the liquid storage cavity and divides the liquid storage cavity into a first liquid cavity and a second liquid cavity, and the separation part is fixedly connected with the upper support shell and movably connected with the shell assembly; the volume of the first liquid cavity and the volume of the second liquid cavity are changed to drive the separation part to move relatively in the liquid storage cavity, and then the upper support shell is driven to move relative to the shell assembly. According to the shock absorber, active control over a vehicle suspension is achieved, and lifting and lowering of the posture of the whole vehicle are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, concretely relates to a shock absorber and vehicle. BACKGROUND

[0002] In the related art, the suspension technology for realizing the vertical active control of the whole vehicle is commonly the air spring and the full active suspension technology. The air spring pumps compressed air into four air bags through an air compressor, and height adjustment is realized in combination with a vehicle sensor and a controller. The system structure is relatively complex, the arrangement space is relatively large, and the air spring air bag is a rubber structure, which inevitably has an aging problem and is prone to cause high maintenance cost after the air spring fails. The full active suspension technology has extremely high requirements for the control and algorithm of the whole vehicle system, and the development cost is extremely expensive, thereby increasing the cost of the whole vehicle. SUMMARY

[0003] Therefore, the utility model provides a shock absorber and vehicle to solve the problems of complex active suspension structure and low reliability.

[0004] In a first aspect, the utility model provides a shock absorber, which comprises:

[0005] A shock absorber body movably provided with a piston rod;

[0006] A shock absorber upper support connected to the piston rod, wherein the shock absorber upper support comprises an upper support shell;

[0007] A lifting mechanism arranged in the shock absorber upper support, wherein the lifting mechanism comprises a shell assembly and a partition; the shell assembly is arranged around the outer circumferential side of the upper support shell and cooperates with the upper support shell to form a liquid storage cavity; the partition is arranged in the liquid storage cavity and divides the liquid storage cavity into a first liquid cavity and a second liquid cavity; the partition is fixedly connected to the upper support shell and movably connected to the shell assembly;

[0008] The volumes of the first liquid cavity and the second liquid cavity change to drive the partition to move relatively in the liquid storage cavity, thereby driving the upper support shell to move relatively to the shell assembly.

[0009] Beneficial effects: the shock absorber provided by the embodiment of the utility model, through setting lifting mechanism on the upper support of the shock absorber, the shell assembly of the lifting mechanism is arranged around the outer circumferential side of the upper support shell and is jointly enclosed with the upper support shell to form a liquid storage cavity; the partition of the lifting mechanism is arranged in the liquid storage cavity and divides the liquid storage cavity into a first liquid cavity and a second liquid cavity, the partition is fixedly connected with the upper support shell and movably connected with the shell assembly; thereby, through the volume change of the hydraulic oil in the first liquid cavity and the second liquid cavity, the partition is driven to move in the liquid storage cavity, and then the upper support shell is driven to move relative to the shell assembly, the posture of the whole vehicle is lifted and lowered. The shock absorber of the embodiment can replace the air spring system to realize the active control of the vehicle suspension through a simpler and more reliable mechanical hydraulic structure, and the after-sales maintenance cost is lower; compared with the air spring system, the response is faster. The shock absorber of the embodiment can replace the air spring system, realize the lifting and lowering of the vehicle height through a hydraulic circuit, and can cooperate with an oil circuit control valve to stop at any position in the adjustable range. In addition, since the main parts of the shock absorber of the embodiment are made of metal material, there is no air spring air bag made of rubber material, and there is almost no aging problem, the high after-sales repair cost caused by rubber aging is avoided, the structure is reliable, and the use cost and repair cost are lower.

[0010] In an alternative embodiment, the shell assembly comprises:

[0011] a shell body arranged around the outer circumferential side of the upper support shell;

[0012] a first guide sealing unit and a second guide sealing unit arranged at both ends of the shell body along the axis direction of the piston rod, respectively;

[0013] the first guide sealing unit abuts tightly against the outer circumferential surface of the upper support shell, and the first guide sealing unit is adapted to slide relative to the upper support shell;

[0014] and / or, the second guide sealing unit abuts tightly against the outer circumferential surface of the upper support shell, and the second guide sealing unit is adapted to slide relative to the upper support shell.

[0015] Beneficial effects: in order to realize the sealing of the liquid storage cavity, the shell body is provided with the first guide sealing unit and the second guide sealing unit at both ends along the axis direction of the piston rod, respectively, and the first guide sealing unit abuts tightly against the outer circumferential surface of the upper support shell, and the first guide sealing unit is adapted to slide relative to the upper support shell; the second guide sealing unit abuts tightly against the outer circumferential surface of the upper support shell, and the second guide sealing unit is adapted to slide relative to the upper support shell. Thus, the liquid storage cavity is enclosed, and the first guide sealing unit and the second guide sealing unit can slide relative to the upper support shell.

[0016] In an alternative embodiment, the lifting mechanism further comprises a partition liquid seal, which is fixedly connected with the partition and abuts against the inner wall surface of the shell body, and is adapted to slide relative to the shell body.

[0017] Beneficial effects: the partition liquid seal is fixedly connected with the partition, so that the partition liquid seal can move synchronously with the partition. The partition liquid seal abuts against the inner wall surface of the shell body, so that the first liquid cavity and the second liquid cavity are separated, and the oil in the first liquid cavity and the second liquid cavity is prevented from flowing into each other in the liquid storage cavity, while the shell body is allowed to slide relative to the partition, thereby ensuring the independence of the first liquid cavity and the second liquid cavity.

[0018] In an alternative embodiment, the upper support shell is formed with a first connecting portion, the partition is formed with a second connecting portion, and the first connecting portion is connected with the second connecting portion to fix the upper support shell with the partition.

[0019] In an alternative embodiment, the outer periphery of the upper support shell is provided with external threads, the partition is in the form of a ring structure and is arranged outside the upper support shell, the inner periphery of the partition is provided with internal threads, and the external threads and the internal threads are connected with each other.

[0020] Beneficial effects: the external threads and the internal threads are connected with each other to fix the upper support shell with the partition, so that the partition drives the upper support shell to move synchronously when the volume of the first liquid cavity and the second liquid cavity changes to drive the partition to move in the liquid storage cavity, thereby achieving the lifting and lowering of the vehicle body and allowing the vehicle body to be stopped at any position in the adjustable range.

[0021] In an alternative embodiment, the upper support shell is further formed with a stepped portion, and one side edge of the partition in the axial direction of the piston rod abuts against the stepped portion.

[0022] Beneficial effects: the formation of the stepped portion on the upper support shell and the abutment of one side edge of the partition in the axial direction of the piston rod against the stepped portion can improve the force support of the partition on the upper support shell.

[0023] In an alternative embodiment, the shock absorber further comprises a fixing seat arranged on the shock absorber body;

[0024] an elastic body arranged elastically between the fixing seat and the lifting mechanism.

[0025] Beneficial effects: the two ends of the elastic body are adapted to abut against the fixing seat and the lifting mechanism, respectively, so that the fixing seat can support the lifting mechanism.

[0026] In a second aspect, the utility model further provides a vehicle, which comprises:

[0027] Vehicle body

[0028] The damper as described above is connected to the vehicle body, and the upper damper support of the damper comprises a mounting portion connected to the vehicle body.

[0029] The hydraulic pump is adapted to inject hydraulic oil into the first liquid cavity and the second liquid cavity respectively.

[0030] In an alternative embodiment, the damper comprises a first damper and a second damper.

[0031] The vehicle further comprises a pressure accumulator.

[0032] The first liquid cavity of the first damper and the pressure accumulator are connected in communication via a first pipeline, and the second liquid cavity of the first damper and the pressure accumulator are connected in communication via a second pipeline.

[0033] The first liquid cavity of the second damper and the hydraulic pump are connected in communication via a third pipeline, and the second liquid cavity of the second damper and the hydraulic pump are connected in communication via a fourth pipeline.

[0034] The first pipeline, the second pipeline, the third pipeline and the fourth pipeline are each provided with a control valve.

[0035] In an alternative embodiment, a sixth pipeline is further connected in communication between the first pipeline and the third pipeline, and a fifth pipeline is further connected in communication between the second pipeline and the fourth pipeline; a first distribution valve is further provided at the intersection of the third pipeline and the sixth pipeline, and a second distribution valve is further provided at the intersection of the fourth pipeline and the fifth pipeline.

[0036] Because the vehicle comprises the damper, the same effects as the damper are achieved, and thus will not be described herein. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0038] Figure 1 It is a schematic view of the damper of the present application.

[0039] Figure 2 It is a partial enlarged view of the damper of the present application.

[0040] Figure 3 It is a hydraulic connection principle diagram of the damper of the present application.

[0041] Explanation of reference signs:

[0042] 1, shock absorber body; 2, shock absorber upper support; 3, lifting mechanism; 4, elastic body; 5, fixed seat; 6, piston rod;

[0043] 21, upper support housing; 211, first connecting part; 212, step part; 213, mounting part;

[0044] 30, housing assembly; 31, housing body; 311, support seat; 32, partition part; 321, second connecting part; 33, partition part liquid seal; 34, first guide sealing unit; 35, second guide sealing unit;

[0045] 341, first cover plate; 342, first guide seat; 343, first liquid seal; 344, first guide bearing;

[0046] 351, second cover plate; 352, second guide seat; 353, second liquid seal; 354, second guide bearing;

[0047] 36, liquid storage cavity; 361, first liquid cavity; 362, second liquid cavity;

[0048] 100, first shock absorber; 200, second shock absorber; 300, pressure liquid storage tank; 400, hydraulic pump; 501, first distribution valve; 502, second distribution valve; 601, first control valve; 602, second control valve; 603, third control valve; 604, fourth control valve; 701, first pipeline; 702, second pipeline; 703, third pipeline; 704, fourth pipeline; 705, fifth pipeline; 706, sixth pipeline. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0050] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0051] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, can be detachable connection, or integrally connected;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through the intermediate medium, can be the communication inside two elements.For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0052] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them.

[0053] In the related art, the suspension technology for realizing the vertical active control of the whole vehicle is commonly used air spring and full active suspension technology. The air spring pumps compressed air into four air bags through an air compressor, and realizes height adjustment in combination with vehicle sensors and controllers. The system structure is relatively complex, the layout space is relatively large, and the air spring air bag is a rubber structure, which inevitably has aging problems, and is prone to cause high maintenance cost after the air spring fails. The full active suspension technology has extremely high requirements for the control and algorithm of the whole vehicle system, and the development cost is extremely expensive, which is not suitable for mass application. Therefore, it becomes an urgent problem to provide an active suspension capable of replacing the structure form of air spring and reducing the complexity of the system structure, saving the layout space and improving the product stability.

[0054] The shock absorber provided by the embodiment of the utility model can be applied between the upper support of the shock absorber and the vehicle body, or between the upper seat of the rear spring and the vehicle body, and the suspension lifting is realized. The shock absorber of the embodiment can replace the air spring system, realize the lifting and lowering of the vehicle body by actively controlling the volume change of the hydraulic oil, and can realize pressure maintaining stop at any position in the adjustable range, and the response is faster than the air spring system, the structure is reliable, and the use cost and maintenance cost are lower.

[0055] The embodiments of the utility model will be described below in combination with Figures 1 to 3 , the description of the embodiments of the utility model.

[0056] According to the embodiment of the utility model, on the one hand, a shock absorber is provided, which comprises:

[0057] The shock absorber body 1 is movably provided with a piston rod 6;

[0058] The upper support 2 of the shock absorber is connected to the piston rod 6 and is suitable for moving along the axis direction of the piston rod 6 relative to the shock absorber body 1;The upper support 2 of the shock absorber comprises an upper support shell 21;

[0059] The lifting mechanism 3 is arranged on the shock absorber upper support 2, and the lifting mechanism 3 comprises a shell assembly 30 and a partition 32. The shell assembly 30 is arranged around the outer circumferential side of the upper support shell 21, and the shell assembly 30 and the upper support shell 21 jointly enclose a liquid storage cavity 36. The partition 32 is arranged in the liquid storage cavity 36 and divides the liquid storage cavity 36 into a first liquid cavity 361 and a second liquid cavity 362. The partition 32 is fixedly connected with the upper support shell 21 and movably connected with the shell assembly 30.

[0060] The volumes of the first liquid cavity 361 and the second liquid cavity 362 change to drive the relative movement of the partition 32 in the liquid storage cavity 36, and then drive the relative movement of the upper support shell 21 with respect to the shell assembly 30.

[0061] The piston rod 6 is movably arranged in the shock absorber body 1 and can move along the axis of the piston rod 6 with respect to the shock absorber body 1. The shock absorber upper support 2 is connected to the piston rod 6 and is adapted to move along the axis of the piston rod 6 with respect to the shock absorber body 1. The movement of the piston rod 6 is used to achieve the damping and buffering effect.

[0062] In this embodiment, the shock absorber upper support 2 is arranged at the top of the shock absorber, and the shock absorber upper support 2 is adapted to be connected with the vehicle body, thereby mounting the shock absorber on the vehicle body.

[0063] The lifting mechanism 3 is further arranged outside the shock absorber upper support 2, and the lifting mechanism 3 can actively drive the shock absorber upper support 2 to rise and fall according to the use requirement.

[0064] The structure of the lifting mechanism 3 and the shock absorber upper support 2 and the specific connection form of the two are as follows:

[0065] The shock absorber upper support 2 comprises an upper support shell 21, and the outer circumferential surface of the upper support shell 21 can be a smooth surface. The lifting mechanism 3 comprises a shell assembly 30, the shell assembly 30 is arranged around the outer circumferential side of the upper support shell 21, the shell assembly 30 and the upper support shell 21 jointly enclose a liquid storage cavity 36, and the shell assembly 30 is adapted to slide with respect to the outer circumferential surface of the upper support shell 21.

[0066] The liquid storage cavity 36 is adapted to store hydraulic oil.

[0067] The lifting mechanism 3 further comprises a partition 32, which is arranged in the liquid storage cavity 36 and divides the liquid storage cavity 36 into a first liquid cavity 361 and a second liquid cavity 362, the first liquid cavity 361 and the second liquid cavity 362 are respectively filled with hydraulic oil, and the first liquid cavity 361 and the second liquid cavity 362 are respectively connected with an external oil circuit. The partition 32 is fixedly connected with the upper support shell 21 and movably connected with the shell assembly 30, the partition 32 can make the first liquid cavity 361 and the second liquid cavity 362 independent of each other and not conductive to each other, and the partition 32 and the shell assembly 30 have good sealing performance, which can meet the sealing requirement on the basis of meeting the movement of the partition 32 relative to the shell assembly 30.

[0068] The first liquid cavity 361 and the second liquid cavity 362 are respectively filled with hydraulic oil, and the oil amount of the first liquid cavity 361 and the second liquid cavity 362 increases in opposite directions. The volume of the first liquid cavity 361 and the second liquid cavity 362 changes, which is suitable for driving the partition 32 to move in the liquid storage cavity 36, thereby driving the upper support shell 21 to move relative to the shell assembly 30.

[0069] In the embodiment, for example, the first liquid cavity 361 can be an upper cavity, and the second liquid cavity 362 can be a lower cavity. When the oil amount of the first liquid cavity 361 increases, the oil amount of the second liquid cavity 362 decreases correspondingly, at this time, the hydraulic oil can push the partition 32 to move downward relative to the shell assembly 30, thereby making the shock absorber upper support 2 move downward relative to the lifting mechanism 3, and realizing the descent of the shock absorber upper support 2. Conversely, when the oil amount of the second liquid cavity 362 increases, the oil amount of the first liquid cavity 361 decreases correspondingly, at this time, the hydraulic oil can push the partition 32 to move upward relative to the shell assembly 30, thereby making the shock absorber upper support 2 move upward relative to the lifting mechanism 3, and realizing the ascent of the shock absorber upper support 2.

[0070] The shock absorber provided by the embodiment of the utility model, by setting the lifting mechanism 3 in the shock absorber upper support 2, the shell assembly 30 of the lifting mechanism 3 is arranged on the outer circumferential side of the upper support shell 21 and is jointly enclosed with the upper support shell 21 to form the liquid storage cavity 36, the partition 32 of the lifting mechanism 3 is arranged in the liquid storage cavity 36 and divides the liquid storage cavity 36 into the first liquid cavity 361 and the second liquid cavity 362, the partition 32 is fixedly connected with the upper support shell 21 and movably connected with the shell assembly 30, thereby driving the partition 32 to move in the liquid storage cavity 36 through the volume change of the hydraulic oil in the first liquid cavity 361 and the second liquid cavity 362, thereby driving the upper support shell 21 to move relative to the shell assembly 30, realizing the lifting and lowering of the whole vehicle posture. The shock absorber of the embodiment can replace the air spring system to realize the active control of the vehicle suspension by adopting a simpler and more reliable mechanical hydraulic structure, and the after-sales maintenance cost is lower, and the response is faster than that of the air spring system.

[0071] Since the medium adopted by the air spring is air, the air is compressible, and when the attitude is lifted or lowered, the compression process of the air will cause the action to have hysteresis. The medium adopted by the shock absorber of the embodiment is hydraulic oil, the hydraulic oil is a liquid, the compressibility of the liquid is smaller, and the compression process can be almost ignored, so the action hysteresis is reduced, and the response is faster.

[0072] The shock absorber provided by the embodiment of the utility model can be applied between the upper support and the vehicle body or between the rear spring upper seat and the vehicle body, and actively lifts and lowers the suspension. The structure is simple and reliable, easy to arrange, and highly applicable.

[0073] The shock absorber of the embodiment can replace the air spring system, raise and lower the vehicle body height through the hydraulic circuit, and cooperate with the oil circuit control valve to stop at any position in the adjustable range.

[0074] In addition, since the shock absorber of the embodiment is made of metal material, there is no air spring air bag made of rubber material, and there is almost no aging problem, the high after-sales maintenance cost caused by rubber aging is avoided, the structure is reliable, and the use cost and maintenance cost are lower.

[0075] In some embodiments, the housing assembly 30 includes:

[0076] The shell body 31 is arranged around the outer circumferential side of the upper support housing 21.

[0077] The first guide sealing unit 34 and the second guide sealing unit 35 are respectively arranged at both ends of the shell body 31 along the axis direction of the piston rod 6.

[0078] The first guide sealing unit 34 abuts tightly with the outer circumferential surface of the upper support housing 21, and the first guide sealing unit 34 is suitable for sliding relative to the upper support housing 21.

[0079] And / or, the second guide sealing unit 35 abuts tightly with the outer circumferential surface of the upper support housing 21, and the second guide sealing unit 35 is suitable for sliding relative to the upper support housing 21.

[0080] In the embodiment, the shell body 31 is arranged around the outer circumferential side of the upper support housing 21, and the shell body 31 can be spaced apart from the upper support housing 21, so that the liquid storage cavity 36 is formed.

[0081] The shell body 31 can be made of metal material.

[0082] In order to seal the liquid storage cavity 36, the shell body 31 is provided with a first guide sealing unit 34 and a second guide sealing unit 35 at both ends along the axial direction of the piston rod 6, and the first guide sealing unit 34 is in abutment with the outer circumferential surface of the upper support shell 21 and is adapted to slide relative to the upper support shell 21; the second guide sealing unit 35 is in abutment with the outer circumferential surface of the upper support shell 21 and is adapted to slide relative to the upper support shell 21. Thus, the liquid storage cavity 36 is enclosed, and the first guide sealing unit 34 and the second guide sealing unit 35 can slide relative to the upper support shell 21.

[0083] Optionally, an oil passage can be formed in the shell body 31 to connect the liquid storage cavity 36 with an external oil passage.

[0084] In combination Figure 2 In the embodiment, the first guide sealing unit 34 includes a first guide seat 342, a first cover plate 341, a first liquid seal 343, and a first guide bearing 344.

[0085] The first guide seat 342 is annular and is fitted to one end of the shell body 31, and can be connected by screwing, inserting, or nesting. In the embodiment, the first guide seat 342 is sleeved on the inner circumferential surface of the shell body 31. An oil passage can be formed in the first guide seat 342 to connect the liquid storage cavity 36 with an external oil passage. The first guide seat 342 provides a mounting position for the first liquid seal 343 and the first guide bearing 344. Figure 2 As shown in the figure, the shell body 31 is formed with a shoulder adapted to abut the first guide seat 342.

[0086] The first cover plate 341 is arranged on the side of the first guide seat 342 away from the shoulder, so as to abut the first guide seat 342 between the first cover plate 341 and the shoulder. In the embodiment, the first cover plate 341 can be annular and is screwed to the shell body 31.

[0087] The first liquid seal 343 is fixedly installed on the first guide seat 342. The side of the first guide seat 342 facing the first cover plate 341 is provided with a groove adapted to accommodate the first liquid seal 343. The first liquid seal 343 can be installed between the first cover plate 341 and the first guide seat 342. The first liquid seal 343 can be annular and is in abutment with the outer circumferential surface of the upper support shell 21. The first liquid seal 343 can slide relative to the upper support shell 21 while sealing the liquid storage cavity 36 and preventing hydraulic oil from flowing out.

[0088] The first guide bearing 344 is fixedly installed on the first guide seat 342, and is specifically arranged between the first guide seat 342 and the outer circumferential surface of the upper support shell 21. The first guide bearing 344 is annular in structure, and can guide the movement of the shell body 31 relative to the upper support shell 21. The first guide bearing 344 can be connected to the first guide seat 342 in a form of interference fit, or can be connected by bolts or adhesion.

[0089] Similarly, the second guide sealing unit 35 includes a second guide seat 352, a second cover plate 351, a second liquid seal 353 and a second guide bearing 354. The second guide seat 352, the second cover plate 351, the second liquid seal 353 and the second guide bearing 354 are symmetrically arranged on both sides of the shell body 31, and have the same structure and the same function as the first guide seat 342, the first cover plate 341, the first liquid seal 343 and the first guide bearing 344. Details are not described herein.

[0090] In some embodiments, the lifting mechanism 3 further includes a partition liquid seal 33, which is fixedly connected to the partition 32 and abuts against the inner wall surface of the shell body 31. The partition liquid seal 33 is adapted to slide relative to the shell body 31.

[0091] The partition liquid seal 33 of the present embodiment is fixedly connected to the partition 32, so that the partition liquid seal 33 can move synchronously with the partition 32. The partition liquid seal 33 abuts against the inner wall surface of the shell body 31, so as to separate the first liquid cavity 361 and the second liquid cavity 362. The partition liquid seal 33 can satisfy the sliding of the shell body 31 relative to the partition 32, and can prevent the oil in the first liquid cavity 361 and the second liquid cavity 362 from flowing into the storage cavity 36, so as to ensure the independence of the first liquid cavity 361 and the second liquid cavity 362.

[0092] In some embodiments, the upper support shell 21 is formed with a first connecting portion 211, and the partition 32 is formed with a second connecting portion 321. The first connecting portion 211 and the second connecting portion 321 are connected to fix the upper support shell 21 and the partition 32.

[0093] In some embodiments, the first connecting portion 211 and the second connecting portion 321 include an inner thread and an outer thread matched with each other. Specifically, the outer circumferential surface of the upper support shell 21 is provided with an outer thread, and the partition 32 is annularly arranged outside the upper support shell 21. The inner circumferential surface of the partition 32 is provided with an inner thread, and the outer thread and the inner thread are matched and connected with each other.

[0094] In combination with Figure 2As shown, the first connecting part 211 is connected with the second connecting part 321, the fixing of the upper support shell 21 and the partition 32 is realized, so that when the volume of the first liquid cavity 361 and the second liquid cavity 362 changes to drive the partition 32 to move in the liquid storage cavity 36, the synchronous movement of the partition 32 with the upper support shell 21 is realized. In order to realize the lifting and lowering of the vehicle body, and can be realized in the adjustable range of any position pressure stop.

[0095] In some embodiments, the upper support shell 21 is further formed with a stepped portion 212, and one side edge of the partition 32 in the axial direction of the piston rod 6 abuts against the stepped portion 212.

[0096] By further forming the stepped portion 212 on the upper support shell 21, the one side edge of the partition 32 in the axial direction of the piston rod 6 abuts against the stepped portion 212, which can improve the force support of the partition 32 to the upper support shell 21.

[0097] Because the partition 32 drives the synchronous movement of the upper support shell 21, the weight of the entire vehicle body needs to be overcome, therefore, the one side edge of the partition 32 in the axial direction of the piston rod 6, especially the upper edge of the partition 32 in the axial direction of the piston rod 6, abuts against the stepped portion 212 of the upper support shell 21, which can avoid the case that the first connecting part 211 and the second connecting part 321 are subjected to excessive force, and improve the durability of the structure.

[0098] In some embodiments, the shock absorber further comprises: a fixing seat 5 arranged on the shock absorber body 1;

[0099] An elastic body 4 is arranged between the fixing seat 5 and the lifting mechanism 3.

[0100] In combination Figure 1 As shown, the fixing seat 5 is fixed to the outside of the shock absorber body 1, and the fixing seat 5 can be annular and sleeved on the outside of the shock absorber body 1.

[0101] The lifting mechanism 3 is formed with a support seat 311. By arranging the elastic body 4 between the fixing seat 5 and the support seat 311 of the lifting mechanism 3, the two ends of the elastic body 4 are adapted to abut against the fixing seat 5 and the support seat 311 of the lifting mechanism 3 respectively, which can realize the supporting effect of the shock absorber body 1 on the lifting mechanism 3.

[0102] In some embodiments, the first liquid cavity 361 and the second liquid cavity 362 are adapted to be filled with hydraulic oil.

[0103] According to the embodiments of the present application, on the other hand, a vehicle is also provided, comprising:

[0104] A vehicle body;

[0105] The damper as described above is connected to the vehicle body, and the upper damper support 2 of the damper comprises a mounting portion 213 connected to the vehicle body;

[0106] The hydraulic pump 400 is adapted to inject hydraulic oil into the first liquid cavity 361 and the second liquid cavity 362 respectively.

[0107] Since the vehicle body is connected to the damper, specifically, the mounting portion 213 of the upper damper support 2 is connected to the vehicle body, in combination with the above description Figure 2 As shown, the mounting portion 213 can be a flange seat formed on the upper support shell 21, and bolt holes are formed on the flange seat. The mounting portion 213 of the upper support shell 21 is connected to the vehicle body by bolts. By controlling the flow of hydraulic oil in the first liquid cavity 361 and the second liquid cavity 362, the lifting and lowering of the damper to the vehicle body can be realized.

[0108] Taking a four-wheeled vehicle as an example, by reasonably setting the communication mode of the hydraulic oil circuit, the lifting and lowering control of the damper of one or more wheels can be realized. The following is an example.

[0109] In some embodiments, the damper comprises a first damper 100 and a second damper 200;

[0110] The vehicle further comprises a pressure liquid storage tank 300;

[0111] The first liquid cavity 361 of the first damper 100 is connected to the pressure liquid storage tank 300 via a first pipeline 701, and the second liquid cavity 362 of the first damper 100 is connected to the pressure liquid storage tank 300 via a second pipeline 702;

[0112] The first liquid cavity 361 of the second damper 200 is connected to the hydraulic pump 400 via a third pipeline 703, and the second liquid cavity 362 of the second damper 200 is connected to the hydraulic pump 400 via a fourth pipeline 704;

[0113] The first pipeline 701, the second pipeline 702, the third pipeline 703 and the fourth pipeline 704 are all provided with control valves;

[0114] The first pipeline 701 and the third pipeline 703 are further connected by a sixth pipeline 706, and the second pipeline 702 and the fourth pipeline 704 are further connected by a fifth pipeline 705; a first distribution valve 501 is further arranged at the intersection of the third pipeline 703 and the sixth pipeline 706, and a second distribution valve 502 is further arranged at the intersection of the fourth pipeline 704 and the fifth pipeline 705.

[0115] Among them, the first pipeline 701, the second pipeline 702, the third pipeline 703 and the fourth pipeline 704 are respectively provided with a first control valve 601, a second control valve 602, a third control valve 603 and a fourth control valve 604, so as to realize the on-off of each oil circuit.

[0116] In this embodiment, the control valves are all electromagnetic two-position two-way valves.

[0117] In this embodiment, the first distribution valve 501 and the second distribution valve 502 can be collectively referred to as distribution valves, and the function of the distribution valves is to control the proportion of the hydraulic oil passing through the respective oil paths, so as to adjust the volume of the hydraulic oil in the different shock absorbers.

[0118] In this embodiment, the hydraulic pump 400 injects high-pressure oil into the first shock absorber 100 and the second shock absorber 200 according to the lifting demand of the whole vehicle, pushes the upper support 2 of the shock absorber to move up and down, and then pushes the vehicle body to realize lifting or lowering by controlling the on-off of the distribution valves and the control valves; at the same time, the oil throttling is realized by the control valves, so as to realize height keeping.

[0119] Obviously, the above-mentioned embodiments are only examples for clearly illustrating, and are not a limitation on the embodiments. Although the embodiments of the present application are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and variations all fall within the scope defined by the present application.

Claims

1. A damper characterized by, The shock absorber comprises: a shock absorber body (1) movably provided with a piston rod (6); a shock absorber upper support (2) connected to the piston rod (6), the shock absorber upper support (2) comprising an upper support shell (21); a lifting mechanism (3) provided on the shock absorber upper support (2), the lifting mechanism (3) comprising a shell assembly (30) and a partition (32); the shell assembly (30) is arranged around the outer circumferential side of the upper support shell (21) and cooperates with the upper support shell (21) to form a liquid storage cavity (36); the partition (32) is arranged in the liquid storage cavity (36) and divides the liquid storage cavity (36) into a first liquid cavity (361) and a second liquid cavity (362); the partition (32) is fixedly connected with the upper support shell (21) and movably connected with the shell assembly (30); the volumes of the first liquid cavity (361) and the second liquid cavity (362) change to drive the partition (32) to move relatively in the liquid storage cavity (36), thereby driving the upper support shell (21) to move relatively to the shell assembly (30).

2. The damper of claim 1, wherein The shell assembly (30) comprises: a shell body (31) arranged around the outer circumferential side of the upper support shell (21); a first guide sealing unit (34) and a second guide sealing unit (35) arranged at both ends of the shell body (31) along the axis direction of the piston rod (6); the first guide sealing unit (34) abuts tightly with the outer circumferential surface of the upper support shell (21), and the first guide sealing unit (34) is adapted to slide relatively to the upper support shell (21); and / or, the second guide sealing unit (35) abuts tightly with the outer circumferential surface of the upper support shell (21), and the second guide sealing unit (35) is adapted to slide relatively to the upper support shell (21).

3. The damper of claim 2, wherein The lifting mechanism (3) further comprises a partition liquid seal (33) fixedly connected with the partition (32) and abutting tightly with the inner wall surface of the shell body (31), and the partition liquid seal (33) is adapted to slide relatively to the shell body (31).

4. The damper of claim 1, wherein The upper support shell (21) is formed with a first connecting portion (211), the partition (32) is formed with a second connecting portion (321), and the first connecting portion (211) and the second connecting portion (321) are connected to fix the upper support shell (21) and the partition (32).

5. The damper of claim 4, wherein The outer circumferential surface of the upper support shell (21) is provided with external threads; the partition (32) is annularly arranged outside the upper support shell (21), the inner circumferential surface of the partition (32) is provided with internal threads, and the external threads and the internal threads are connected with each other.

6. The damper of claim 5, wherein The upper support shell (21) is further formed with a step portion (212), and one side edge of the partition (32) along the axis direction of the piston rod (6) abuts against the step portion (212).

7. The damper according to any one of claims 1 to 6, characterized in that The shock absorber further comprises a fixing seat (5) arranged on the shock absorber body (1). An elastic body (4) is arranged between the fixing base (5) and the lifting mechanism (3).

8. A vehicle characterized by comprising: The application relates to a shock absorber. A vehicle body; The shock absorber is connected to the vehicle body, and an upper support (2) of the shock absorber comprises a mounting part (213) connected to the vehicle body. A hydraulic pump (400) is adapted to inject hydraulic oil into the first liquid cavity (361) and the second liquid cavity (362) respectively.

9. The vehicle of claim 8, wherein, The shock absorber comprises a first shock absorber (100) and a second shock absorber (200). The vehicle further comprises a pressure liquid storage tank (300). The first liquid cavity (361) of the first shock absorber (100) is connected to the pressure liquid storage tank (300) through a first pipeline (701), and the second liquid cavity (362) of the first shock absorber (100) is connected to the pressure liquid storage tank (300) through a second pipeline (702). The first liquid cavity (361) of the second shock absorber (200) is connected to the hydraulic pump (400) through a third pipeline (703), and the second liquid cavity (362) of the second shock absorber (200) is connected to the hydraulic pump (400) through a fourth pipeline (704). The first pipeline (701), the second pipeline (702), the third pipeline (703) and the fourth pipeline (704) are all provided with control valves.

10. The vehicle of claim 9, wherein, The first pipeline (701) and the third pipeline (703) are further connected through a sixth pipeline (706), and the second pipeline (702) and the fourth pipeline (704) are further connected through a fifth pipeline (705); a first distribution valve (501) is arranged at the intersection of the third pipeline (703) and the sixth pipeline (706), and a second distribution valve (502) is arranged at the intersection of the fourth pipeline (704) and the fifth pipeline (705).

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