An auxiliary device for a vehicle suspension

Abstract

The application discloses a kind of auxiliary devices of vehicle suspension, belong to automobile suspension technical field, including fixed frame, the front and back of the fixed frame are provided with support arm, two support arms opposite sides are movably hinged with two movable racks, the side surface of each movable rack is fixedly connected with the outer surface of fixed frame, the inside of two support arms is rotatably connected with connecting seat by ball head, the inside of fixed frame is provided with oil storage tank, the front and back of oil storage tank are fixedly connected with oil delivery hose, the outer surface of two connecting seats is provided with rubber sleeve.The auxiliary device of the vehicle suspension, when the vehicle suspension structure is used, has the self-lubricating auxiliary function of easy-wearing position, makes the vehicle suspension easy-wearing position not easy to appear excessive wear due to insufficient lubrication, effectively improves the service life of vehicle suspension, reduces the gap of vehicle suspension wear, and makes the vehicle not easy to appear abnormal sound due to excessive friction when driving.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile suspension, and particularly relates to an auxiliary device for vehicle suspension. BACKGROUND

[0002] The automobile suspension is a mechanism connecting the wheel and the vehicle body, and plays a supporting and damping role on the vehicle body. It mainly transmits the force between the wheel and the vehicle frame, buffers the impact force transmitted to the vehicle frame or vehicle body by uneven road surface, and attenuates the vibration caused thereby to ensure smooth driving of the automobile. The automobile suspension is mainly composed of a coil spring and a hydraulic shock absorber.

[0003] The existing invention with the authorization announcement No. CN220594566U discloses a vehicle suspension device, which comprises a first auxiliary frame for connecting with a main frame, and two first suspension assemblies. Each first suspension assembly comprises a first supporting arm, a second supporting arm, a first goat horn and a first shock absorbing assembly. The two ends of the first supporting arm are bent towards the same side and are rotatably connected to the main frame.

[0004] The above technical solution makes the moving distance of the vehicle suspension device towards the main frame at least 3 inches, and the suspension stroke of the vehicle suspension device at least 8 inches, thereby improving the suspension stroke of the vehicle, reducing the body bouncing, and improving the comfort and safety of passengers. However, the above technology does not have the self-lubricating auxiliary function for the easy-wearing position, which makes the easy-wearing position of the vehicle suspension prone to excessive wear due to insufficient lubrication, causes the vehicle suspension to have a gap, affects the driving safety of the vehicle, and also causes abnormal noise during driving, thereby reducing the service life of the vehicle suspension.

[0005] Therefore, the application provides an auxiliary device for vehicle suspension to solve the above problems. SUMMARY

[0006] The application aims to solve the problem that the existing technology does not have the self-lubricating auxiliary function for the easy-wearing position, which makes the easy-wearing position of the vehicle suspension prone to excessive wear due to insufficient lubrication, and provides an auxiliary device for vehicle suspension.

[0007] To achieve the above purpose, the application adopts the following technical solutions:

[0008] The front and back of the fixed frame are provided with supporting arms, the supporting arms are provided with movable frames, the movable frames are movably connected with the supporting arms, and the outer surface of the fixed frame is fixedly connected with one side surface of the movable frame.

[0009] The upper surface of the fixed frame is fixedly connected with a positioning frame, the bottom surface of the supporting arm is fixedly connected with a stable frame, the inside of the positioning frame is movably connected with a connecting block, one side surface of the connecting block is fixedly connected with an extension cylinder, the inside of the stable frame is movably connected with a fixed block, one side surface of the fixed block is fixedly connected with a push rod, the push rod is slidably connected in the inside of the extension cylinder, one end of the push rod is fixedly connected with a piston, the piston is slidably connected in the inside of the extension cylinder, the outer surface of the extension cylinder is fixedly connected with a second one-way valve, the outer surface of the extension cylinder is fixedly connected with a gas delivery pipe, the other end of the gas delivery pipe is fixedly connected with a third one-way valve, the output end of the third one-way valve is fixedly connected with a conveying pipe, the conveying pipe penetrates into the inside of the oil storage tank, one end of the piston is fixedly connected with a sealing rubber plate, and the sealing rubber plate is slidably connected in the inside of the extension cylinder.

[0010] Preferably, the outer surfaces of the two connecting seats are rotatably connected with connecting discs, and the front surfaces of the two connecting discs are provided with a plurality of connecting holes.

[0011] Preferably, the two sides of the oil storage tank are fixedly connected with reinforcing plates, and the sides, away from the oil storage tank, of the two reinforcing plates are fixedly connected with the inner walls of the fixed frame.

[0012] Preferably, the upper surface of the oil storage tank is fixedly connected with a pressure relief valve, and the side of the oil storage tank is fixedly connected with a refueling valve.

[0013] Preferably, the upper surface of the rubber sleeve is fixedly connected with a sealing rubber ring, and the inner wall of the sealing rubber ring is fixedly connected with the inner wall of the connecting seat.

[0014] Preferably, the upper surface of the two arms and the upper surface of the fixed frame are fixedly connected with first positioning sleeves, and the inner wall of each first positioning sleeve is fixedly connected with the outer surface of the oil feeding hose.

[0015] Preferably, the bottom surface of the two arms and the bottom surface of the fixed frame are fixedly connected with second positioning sleeves, and the inner wall of each second positioning sleeve is fixedly connected with the outer surface of the return hose.

[0016] Preferably, the front surface and the back surface of the fixed frame are fixedly connected with support frames, and the outer surface of each first connecting hose is fixedly connected with the outer surface of the support frame.

[0017] Preferably, one end of each of the two pistons is fixedly connected with a sealing rubber plate, and the inside of each of the two telescopic cylinders is slidingly connected with the sealing rubber plate.

[0018] Preferably, the lubricating oil flow rate is

[0019] In the above formula, represents the radius of the oil feeding hose, represents the dynamic viscosity of the lubricating oil, represents the length of the oil feeding hose, represents the initial pressure of the oil tank, represents the density of the lubricating oil, represents the oil column height in the oil tank, represents the initial gas volume of the oil tank, represents the cross-sectional area of the piston, represents the stroke of the piston, represents the gas compression coefficient.

[0020] In summary, the technical effects and advantages of the present application are:

[0021] ​1. By setting up a stable frame with a fixed block, when the vehicle is running on a bumpy road and needs to be suspended for shock absorption, the support arm will move along the hinge point of the movable frame for shock absorption, and then the stable frame and the fixed block will push the push rod and the piston to slide inside the telescopic cylinder, cooperate with the movable hinge of the connecting block and the positioning frame, smoothly suck the outside air into the inside of the telescopic cylinder through the second one-way valve, and with the movement of the piston, the air in the inside of the telescopic cylinder is sent into the inside of the oil storage tank through the air pipe, the third one-way valve and the delivery pipe, so that the pressure in the inside of the oil storage tank increases, and with the continuous increase of the pressure, the lubricating oil in the inside of the oil storage tank is sent into the rubber sleeve and the rubber sealing sleeve through the oil sending hose and the first connecting hose and the second connecting hose located above respectively, and the lubricating oil is supplied in time to the easily-worn connecting seat and the support arm connection position and the support arm and the fixed frame connection position, so that the vehicle suspension has the function of self-lubricating auxiliary function when in use, so that the easily-worn position of the vehicle suspension is not easy to be over-worn due to insufficient lubrication, effectively improves the service life of the vehicle suspension, reduces the gap caused by the wear of the vehicle suspension, and makes the vehicle not easy to produce abnormal sound due to excessive friction when driving.

[0022] 2. By setting the return hose with the first connecting hose and the second connecting hose located below, the excess lubricating oil in the rubber sleeve and the rubber sealing sleeve can be returned to the inside of the oil storage tank for storage and secondary use, which not only can prevent the rubber sleeve and the rubber sealing sleeve from being broken due to excessive pressure, but also can take away the heat of the easily-worn position by using the flowing lubricating oil, reduce the thermal wear between the movable parts of the vehicle suspension, and also can take away the metal debris generated by the friction between the movable parts of the vehicle suspension to a certain extent, further improving the lubricating auxiliary effect of the vehicle suspension. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure diagram of the fixed seat of the application;

[0024] Figure 2 It is a three-dimensional structure diagram of the connecting seat of the application;

[0025] Figure 3 It is a three-dimensional structure diagram of the support arm of the application;

[0026] Figure 4 It is a three-dimensional structure diagram of the rubber sealing sleeve of the application;

[0027] Figure 5 It is a three-dimensional structure diagram of the oil storage tank of the application;

[0028] Figure 6 It is a three-dimensional structure diagram of the support arm and the movable frame of the application;

[0029] Figure 7 It is a three-dimensional structure diagram of the positioning frame of the application;

[0030] Figure 8 The sectional view of the telescopic cylinder is shown in the structural schematic diagram.

[0031] In the figure: 1, fixed frame; 2, support arm; 3, movable frame; 4, connecting seat; 5, oil storage tank; 6, oil feeding hose; 7, rubber sleeve; 8, first one-way valve; 9, return hose; 10, rubber sealing sleeve; 11, first connecting hose; 12, second connecting hose; 13, positioning frame; 14, stabilizing frame; 15, connecting block; 16, telescopic cylinder; 17, fixed block; 18, push rod; 19, piston; 20, second one-way valve; 21, air feeding pipe; 22, third one-way valve; 23, conveying pipe; 24, support seat; 25, shock absorber; 26, shock absorbing spring; 27, connecting disc; 28, connecting hole; 29, reinforcing plate; 30, pressure relief valve; 31, oil filling valve; 32, sealing rubber ring; 33, first positioning sleeve; 34, second positioning sleeve; 35, support frame; 36, sealing rubber plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0033] Reference Figures 1-8 A kind of auxiliary device of vehicle suspension, including fixed frame 1, the front and back of fixed frame 1 are provided with support arm 2, two support arms 2 relative side are movably hinged with two movable frames 3, the side surface of each movable frame 3 is fixedly connected with the outer surface of fixed frame 1;

[0034] The connecting place of each movable frame 3 with support arm 2 is all set with rubber sealing sleeve 10, the inner wall of each rubber sealing sleeve 10 is fixedly connected with the outer surface of support arm 2, it is worth mentioning that, since rubber sealing sleeve 10 is soft rubber material, so movable frame 3 can still be hinged to rotate along support arm 2;

[0035] The inside of two support arms 2 is movably connected with connecting seat 4 by ball head, the opposite side of two connecting seats 4 is fixedly connected with support seat 24, the upper of two support seats 24 is movably hinged with shock absorber 25, the outer surface of two shock absorbers 25 is all set with shock absorbing spring 26, support seat 24 cooperates with shock absorber 25 and shock absorbing spring 26, can guarantee the smooth progress of vehicle suspension damping buffering work.

[0036] The connecting part of the supporting arm 2 and the connecting seat 4 is provided with a rubber sleeve 7 sleeving the ball head of the connecting seat 4, and the bottom of the rubber sleeve 7 is connected to the upper surface of the supporting wall 2. The upper surfaces of the two rubber sleeves 7 are fixedly connected with sealing rubber rings 32. The inner walls of each sealing rubber ring 32 are fixedly connected with the inner walls of the connecting seat 4. The sealing rubber rings 32 can further close the gap between the rubber sleeve 7 and the connecting seat 4, preventing the lubricating oil from leaking from the gap, and improving the tightness of the rubber sleeve 7 and the connecting seat 4.

[0037] It is worth mentioning that, since the rubber sleeve 7 and the sealing rubber ring 32 are both soft materials, the connecting seat 4 can still rotate through the ball head supporting arm 2.

[0038] The outer surfaces of the two connecting seats 4 are rotationally connected with connecting discs 27. The front surfaces of the two connecting discs 27 are provided with a plurality of connecting holes 28. Through the cooperation of the connecting disc 27 and the connecting hole 28, the tire and the vehicle brake structure can be normally installed and assembled with the vehicle suspension. This is prior art, and will not be described in detail here.

[0039] The inside of the fixed frame 1 is provided with an oil storage tank 5. The oil storage tank 5 is filled with lubricating oil. Specifically, the two side surfaces of the oil storage tank 5 are fixedly connected with reinforcing plates 29. The side surfaces of the two reinforcing plates 29 away from the oil storage tank 5 are fixedly connected with the inner walls of the fixed frame 1. In this way, the oil storage tank 5 is fixedly installed through the reinforcing plates 29.

[0040] The front surface and the back surface of the oil storage tank 5 are fixedly connected with oil feeding hoses 6. The other ends of the two oil feeding hoses 6 penetrate into the interiors of the two rubber sleeves 7. The upper surface of the oil storage tank 5 is fixedly connected with two first one-way valves 8. The input ends of the two first one-way valves 8 are fixedly connected with return flow hoses 9. The other ends of the two return flow hoses 9 penetrate into the interior of the supporting arm 2. The two return flow hoses 9 penetrate into the connecting ball head position of the supporting arm 2 and the connecting seat 4.

[0041] The outer surfaces of the two oil feeding hoses 6 and the outer surfaces of the two return flow hoses 9 are fixedly connected with first connecting hoses 11. The other ends of each first connecting hose 11 penetrate into the interiors of two rubber sealing sleeves 10. The upper surface of the oil storage tank 5 is fixedly connected with a pressure relief valve 30. The side of the oil storage tank 5 is fixedly connected with a refueling valve 31. The pressure relief valve 30 can prevent the pressure inside the oil storage tank 5 from being too large, so that the excess pressure inside the oil storage tank 5 can be smoothly discharged outward. The refueling valve 31 can facilitate maintenance personnel to supplement lubricating oil into the interior of the oil storage tank 5.

[0042] The outer surfaces of the two oil feeding hoses 6 and the outer surfaces of the two return flow hoses 9 are fixedly connected with second connecting hoses 12. The other ends of each second connecting hose 12 penetrate into the interiors of the other two rubber sealing sleeves 10.

[0043] The upper surface of the fixed frame 1 is fixedly connected with two positioning frames 13, the bottom surface of the two supporting arms 2 is fixedly connected with stable frames 14, the interiors of the two positioning frames 13 are movably hinged with connecting blocks 15, the upper surfaces of the two supporting arms 2 and the upper surface of the fixed frame 1 are fixedly connected with first positioning sleeves 33, the inner walls of each first positioning sleeve 33 are fixedly connected with the outer surface of the oil feeding hose 6, the first positioning sleeve 33 can position the position of the oil feeding hose 6, so that the oil feeding hose 6 can smoothly move with the supporting arm 2, and meanwhile, the oil feeding hose 6 can be prevented from being excessively twisted and being scratched with other vehicle facilities.

[0044] The side surfaces of the two connecting blocks 15 are fixedly connected with telescopic cylinders 16, the interiors of the two stable frames 14 are movably hinged with fixed blocks 17, the side surfaces of the two fixed blocks 17 are fixedly connected with push rods 18, the two push rods 18 are slidably connected in the interiors of the two telescopic cylinders 16, the bottom surfaces of the two supporting arms 2 and the bottom surface of the fixed frame 1 are fixedly connected with second positioning sleeves 34, the inner walls of each second positioning sleeve 34 are fixedly connected with the outer surface of the return hose 9, the second positioning sleeve 34 can limit the position of the return hose 9, so that the return hose 9 can be prevented from being in contact with the ground in the bending movement process, and the use safety of the return hose 9 is increased.

[0045] The ends of the two push rods 18 are fixedly connected with pistons 19, the two pistons 19 are slidably connected in the interiors of the telescopic cylinders 16, the outer surfaces of the two telescopic cylinders 16 are fixedly connected with second one-way valves 20, the front surface and the back surface of the fixed frame 1 are fixedly connected with supporting frames 35, the outer surfaces of each first connecting hose 11 are fixedly connected with the outer surfaces of the supporting frames 35, the supporting frame 35 can support and fix the position of the first connecting hose 11, so that the position of the first connecting hose 11 is further positioned, and the first connecting hose 11 is more regular and beautiful in use.

[0046] The outer surfaces of the two telescopic cylinders 16 are fixedly connected with air feeding pipes 21, the other ends of the two air feeding pipes 21 are fixedly connected with third one-way valves 22, the output ends of the two third one-way valves 22 are fixedly connected with conveying pipes 23, the two conveying pipes 23 penetrate into the interior of the oil storage tank 5, the ends of the two pistons 19 are fixedly connected with sealing rubber plates 36, the two sealing rubber plates 36 are slidably connected in the interiors of the two telescopic cylinders 16, the sealing rubber plate 36 can further close the gap between the piston 19 and the telescopic cylinder 16, so that the gas can be prevented from leaking through the gap, and the gas pushing effect of the piston 19 is ensured.

[0047] The working principle of the present application is: when the vehicle is running on a bumpy road and needs to be suspended for shock absorption, the supporting arm 2 will move along the hinge point of the movable frame 3 for shock absorption, and then the push rod 18 and the piston 19 will slide in the telescopic cylinder 16 by pushing the push rod 18 and the piston 19 through the stable frame 14 and the fixed block 17, cooperating with the sealing rubber plate 36 to seal the piston 19 and the movable hinge of the connecting block 15 and the positioning frame 13, so that the outside air is smoothly sucked into the inside of the telescopic cylinder 16 through the second one-way valve 20, and with the movement of the piston 19, the air in the telescopic cylinder 16 is sent into the inside of the oil storage tank 5 through the air pipe 21, the third one-way valve 22 and the delivery pipe 23, so that the pressure in the inside of the oil storage tank 5 increases, and with the continuous increase of the pressure, the lubricating oil in the inside of the oil storage tank 5 can be sent into the inside of the rubber sleeve 7 and the rubber sealing sleeve 10 through the oil sending hose 6 and the first connecting hose 11 and the second connecting hose 12 located above respectively, so as to supplement the lubricating oil in time for the easily worn connecting seat 4 and the connecting position of the supporting arm 2 and the fixed frame 1, so that the vehicle suspension has the self-lubricating auxiliary function in use, so that the easily worn position of the vehicle suspension is not easy to be over-worn due to insufficient lubrication, and the service life of the vehicle suspension is effectively improved, the wear gap of the vehicle suspension is reduced, and the vehicle is not easy to produce abnormal sound due to excessive friction when driving;

[0048] At the same time, by using the return hose 9 in cooperation with the first connecting hose 11 and the second connecting hose 12 located below, the excess lubricating oil in the inside of the rubber sleeve 7 and the rubber sealing sleeve 10 can be re-flowed into the inside of the oil storage tank 5 for storage and secondary use, which not only can prevent the rubber sleeve 7 and the rubber sealing sleeve 10 from being broken due to excessive pressure, but also can take away the heat of the easily worn position by using the flowing lubricating oil, reduce the thermal wear between the movable parts of the vehicle suspension, and also can take away the metal debris generated by the friction between the movable parts of the vehicle suspension to a certain extent, further improving the lubricating auxiliary effect of the vehicle suspension. Since the communication position of the oil sending hose 6 and the oil storage tank 5 is higher than the lowest liquid level of the oil storage tank 5, most of the metal debris will sink and deposit at the bottom of the oil storage tank 5 after entering the inside of the oil storage tank 5 with the lubricating oil, and will not enter the inside of the rubber sleeve 7 and the rubber sealing sleeve 10 again through the oil sending hose 6.

[0049] In the present application, the lubricating oil flow (i.e. the amount of oil sent into the rubber sleeve 7 and the rubber sealing sleeve 10) satisfies:

[0050]

[0051] In the above formula, represents the radius of the oil sending hose 6, represents the dynamic viscosity of the lubricating oil, represents the length of the oil sending hose 6, represents the initial pressure of the oil storage tank 5, represents the density of the lubricating oil, represents the oil column height in the oil reservoir 5, represents the initial gas volume in the oil reservoir 5, represents the cross-sectional area of the piston 19, represents the stroke of the piston 19, represents the gas compressibility factor.

[0052] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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.

[0053] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0054] The above description is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change within the technical range disclosed by the present application according to the technical solution and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. An auxiliary device for vehicle suspension, comprising a fixed frame (1), the front and back of the fixed frame (1) are provided with a support arm (2), the support arm (2) is provided with a movable frame (3), the movable frame (3) is movably connected with the support arm (2), the outer surface of the fixed frame (1) is fixedly connected with one side of the movable frame (3); the inside of the support arm (2) is rotatably connected with a connecting seat (4) through a ball head, the connecting position of the support arm (2) and the connecting seat (4) is provided with a rubber sleeve (7), the inside of the fixed frame (1) is provided with an oil storage tank (5), the front and back of the oil storage tank (5) are fixedly and continuously provided with an oil feeding hose (6), the oil feeding hose (6) penetrates into the inside of the rubber sleeve (7); the upper surface of the fixed frame (1) is fixedly connected with a positioning frame (13), the bottom surface of the support arm (2) is fixedly connected with a stabilizing frame (14), the inside of the positioning frame (13) is movably connected with a connecting block (15), one side of the connecting block (15) is fixedly connected with a telescopic cylinder (16), the inside of the stabilizing frame (14) is movably connected with a fixing block (17), one side of the fixing block (17) is fixedly connected with a push rod (18), the push rod (18) is slidably connected in the inside of the telescopic cylinder (16), one end of the push rod (18) is fixedly connected with a piston (19), the piston (19) is slidably connected in the inside of the telescopic cylinder (16); the outer surface of the telescopic cylinder (16) is fixedly and continuously provided with a second one-way valve (20), the outer surface of the telescopic cylinder (16) is fixedly connected with a gas feeding pipe (21), the other end of the gas feeding pipe (21) is fixedly and continuously provided with a third one-way valve (22), the output end of the third one-way valve (22) is fixedly and continuously provided with a conveying pipe (23), the conveying pipe (23) penetrates into the inside of the oil storage tank (5), one end of the piston (19) is fixedly connected with a sealing rubber plate (36), the sealing rubber plate (36) is slidably connected in the inside of the telescopic cylinder (16).

2. An auxiliary device for a vehicle suspension as claimed in claim 1, characterised in that: The upper surface of the oil storage tank (5) is fixedly and continuously provided with a first one-way valve (8), the input end of the first one-way valve (8) is fixedly and continuously provided with a backflow hose (9), the backflow hose (9) penetrates into the connecting ball head position of the support arm (2) and the connecting seat (4).

3. An auxiliary device for a vehicle suspension as defined in claim 1, characterized in that: The outer surface of the oil feeding hose (6) and the outer surface of the backflow hose (9) are fixedly and continuously provided with a first connecting hose (11), the first connecting hose (11) penetrates into the inside of a rubber sealing sleeve (10).

4. An auxiliary device for a vehicle suspension as defined in claim 1, characterized in that: The outer surface of the two connecting seats (4) is rotatably connected with a connecting disc (27), the front of the two connecting discs (27) is provided with a plurality of connecting holes (28).

5. An auxiliary device for a vehicle suspension as defined in claim 1, characterized in that: The two sides of the oil storage tank (5) are fixedly connected with a reinforcing plate (29), the side of the two reinforcing plates (29) away from the oil storage tank (5) is fixedly connected with the inner wall of the fixed frame (1).

6. An auxiliary device for a vehicle suspension as defined in claim 1, characterized in that: The upper surface of the oil storage tank (5) is fixedly and continuously provided with a pressure relief valve (30), the side of the oil storage tank (5) is fixedly and continuously provided with a refueling valve (31).

7. An auxiliary device for a vehicle suspension as defined in claim 1, characterized in that: The upper surface of the rubber sleeve (7) is fixedly connected with a sealing rubber ring (32), and the inner wall of the sealing rubber ring (32) is fixedly connected with the inner wall of the connecting seat (4).

8. An auxiliary device for a vehicle suspension as defined in claim 1, characterized in that: The lubricating oil flow rate In the above formula, r represents the radius of the oil delivery hose (6), η represents the dynamic viscosity of the lubricating oil, L represents the length of the oil delivery hose (6), P0 represents the initial pressure of the oil reservoir (5), p represents the density of the lubricating oil, h represents the oil column height in the oil reservoir (5), V0 represents the initial gas volume of the oil reservoir (5), A p represents the cross-sectional area of the piston (19), L p represents the stroke of the piston (19), and a represents the gas compressibility factor.

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