Auxiliary device for vehicle suspension

Abstract

The invention discloses an auxiliary device for vehicle suspension, and belongs to the technical field of vehicle suspension, the auxiliary device comprises a fixed frame, support arms are arranged on the front surface and the back surface of the fixed frame, two movable frames are movably hinged to the opposite sides of the two support arms, and one side surface of each movable frame is fixedly connected with the outer surface of the fixed frame; the interiors of the two supporting arms are rotationally connected with connecting bases through ball heads, an oil storage tank is arranged in the fixing frame, the front face and the back face of the oil storage tank fixedly communicate with oil feeding hoses, and rubber sleeves are arranged on the outer surfaces of the two connecting bases. According to the auxiliary device for the vehicle suspension, when a vehicle suspension structure is used, the self-lubricating auxiliary function of the easily-abraded position is achieved, the easily-abraded position of the vehicle suspension is not prone to being excessively abraded due to insufficient lubrication, the service life of the vehicle suspension is effectively prolonged, gaps caused by abrasion of the vehicle suspension are reduced, and the service life of the vehicle suspension is prolonged. And abnormal sound caused by excessive friction is not easy to occur when the vehicle runs.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile suspension, and in particular relates to an auxiliary device for vehicle suspension. Background Art

[0002] A car's suspension connects the wheels to the vehicle body, supporting and damping the car's vibrations. It primarily transmits force between the wheels and the vehicle frame, cushioning the impact of uneven road surfaces on the frame or body, attenuating the resulting vibrations to ensure a smooth ride. It primarily consists of coil springs and hydraulic shock absorbers.

[0003] The invention with the existing authorization announcement number CN220594566U discloses a vehicle suspension device, including a first sub-frame for connecting to a main frame, and two first suspension assemblies, each of which includes a first support arm, a second support arm, a first clevis and a first shock absorber assembly, and the two ends of the first support arm are bent toward the same side and are rotatably connected to the main frame.

[0004] By adopting the above technical solution, the vehicle suspension device can move at least 3 inches closer to the main frame, and the suspension stroke of the vehicle suspension device is at least 8 inches, thereby increasing the suspension stroke of the vehicle, reducing body bumps, and improving passenger comfort and sense of security. However, when the above technology is used, it does not have the self-lubricating auxiliary function of the easily worn positions, which makes the easily worn positions of the vehicle suspension prone to excessive wear due to insufficient lubrication, causing gaps in the vehicle suspension, affecting the vehicle's driving safety, and also causing abnormal noises when the vehicle is driving, reducing the service life of the vehicle suspension.

[0005] To this end, we propose an auxiliary device for vehicle suspension to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem in the prior art that the wear-prone parts of the vehicle suspension do not have the self-lubricating auxiliary function, which makes the wear-prone parts of the vehicle suspension prone to excessive wear due to insufficient lubrication, and to propose an auxiliary device for vehicle suspension.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] The front and back sides of the fixed frame are provided with support arms, and a movable frame is provided on the support arm, and the movable frame is movably hinged to the support arm, and the outer surface of the fixed frame is fixedly connected to one side of the movable frame; the interior of the support arm is rotatably connected to the connecting seat through a ball head, and the opposite sides of the two connecting seats are fixedly connected to the support seats, and the interiors of the two support seats are movably hinged with shock absorbers, and the outer surfaces of the two shock absorbers are sleeved with shock-absorbing springs, and a rubber sleeve is provided at the connection between the support arm and the connecting seat, and the rubber sleeve is sleeved with a ball head of the connecting seat, and the bottom of the rubber sleeve is connected to An oil storage tank is provided on the upper surface of the support arm and inside the fixing bracket, and the oil storage tank has lubricating oil built in. The front and back surfaces of the oil storage tank are fixedly connected to oil supply hoses, and the oil supply hoses pass through the interior of the rubber sleeve; the upper surface of the oil storage tank is fixedly connected to a first one-way valve, and the input end of the first one-way valve is fixedly connected to a return hose, and the return hose passes through the connection ball head position between the support arm and the connecting seat; the outer surfaces of the oil supply hose and the outer surfaces of the return hose are fixedly connected to a first connecting hose, and the first connecting hose passes through the interior of the rubber sealing sleeve;

[0009] The upper surface of the fixing frame is fixedly connected to the positioning frame, the bottom surface of the support arm is fixedly connected to the stabilizing frame, the positioning frame is internally movably hinged with a connecting block, one side of the connecting block is fixedly connected to the telescopic cylinder, the internal movably hinged of the stabilizing frame is fixedly connected to the fixing block, one side of the fixing block is fixedly connected to a push rod, the push rod is slidably connected to the inside of the telescopic cylinder, one end of the push rod is fixedly connected to a piston, and the piston is slidably connected to the inside of the telescopic cylinder, the outer surface of the telescopic cylinder is fixedly connected to a second one-way valve, the outer surface of the telescopic cylinder is fixedly connected to an air supply pipe, the other end of the air supply pipe is fixedly connected to a third one-way valve, the output end of the third one-way valve is fixedly connected to a delivery pipe, and the delivery pipe passes through the interior of the oil storage tank, one end of the piston is fixedly connected to a sealing rubber plate, and the sealing rubber plate is slidably connected to the inside of the telescopic cylinder.

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

[0011] Preferably, reinforcement plates are fixedly connected to both side surfaces of the oil storage tank, and the side surfaces of the two reinforcement plates away from the oil storage tank are fixedly connected to the inner wall of the fixing frame.

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

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

[0014] Preferably, the upper surfaces of the two support arms and the upper surface of the fixing bracket are fixedly connected with first positioning sleeves, and the inner wall of each of the first positioning sleeves is fixedly connected to the outer surface of the oil delivery hose.

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

[0016] Preferably, the front and back sides of the fixing frame are fixedly connected to a supporting frame, and the outer surface of each of the first connecting hoses is fixedly connected to the outer surface of the supporting frame.

[0017] Preferably, one end of each of the two pistons is fixedly connected to a sealing rubber plate, and the two sealing rubber plates are slidably connected to the interiors of the two telescopic cylinders respectively.

[0018] Preferably, the lubricating oil flow rate ;

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

[0020] In summary, the technical effects and advantages of the present invention are as follows:

[0021] 1. By providing a stabilizing frame and a fixing block, when the vehicle is traveling on a bumpy road and needs suspension for shock absorption, the support arm will move along the hinge point of the movable frame for shock absorption, and then the push rod and the piston will slide inside the telescopic cylinder through the stabilizing frame and the fixing block, and cooperate with the movable hinge of the connecting block and the positioning frame to smoothly suck the outside air into the telescopic cylinder through the second one-way valve. As the piston moves, the air inside the telescopic cylinder is sent into the oil storage tank through the air supply pipe, the third one-way valve and the delivery pipe, so that the pressure inside the oil storage tank increases. As the pressure continues to increase, the lubricating oil in the oil storage tank can be sent into the rubber sleeve and the rubber sealing sleeve through the oil supply hose and the first connecting hose and the second connecting hose located above, respectively, so as to timely replenish lubricating oil to the connection position between the connecting seat and the support arm and the connection position between the support arm and the fixing frame that are more prone to wear. When the vehicle suspension is in use, it has a self-lubricating auxiliary function for the wear-prone positions of the vehicle suspension, so that the wear-prone positions of the vehicle suspension are not prone to excessive wear due to insufficient lubrication, effectively extending the service life of the vehicle suspension, reducing the gap caused by vehicle suspension wear, and preventing abnormal noise due to excessive friction when the vehicle is driving;

[0022] 2. By providing a return hose in conjunction with the first connecting hose and the second connecting hose located below, the excess lubricating oil inside the rubber sleeve and the rubber sealing sleeve can be returned to the oil storage tank for storage and secondary use. This not only prevents the rubber sleeve and the rubber sealing sleeve from rupture due to excessive internal pressure, but also utilizes the flowing lubricating oil to take away heat from easily worn positions, reducing thermal wear between the vehicle suspension moving parts, and can also to a certain extent take away metal debris generated by friction between the vehicle suspension moving parts, further improving the lubrication auxiliary effect of the vehicle suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the fixing seat of the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the connecting seat of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the support arm of the present invention in a cutaway perspective view;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the rubber sealing sleeve of the present invention;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the oil storage tank of the present invention;

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

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

[0030] Figure 8 It is a schematic structural diagram of a three-dimensional cross-section of the telescopic cylinder of the present invention.

[0031] In the figure: 1. Fixed frame; 2. Support arm; 3. Movable frame; 4. Connecting seat; 5. Oil storage tank; 6. Oil supply 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 supply pipe; 22. Third one-way valve; 23. Delivery pipe; 24. Support seat; 25. Shock absorber; 26. Shock-absorbing spring; 27. Connecting plate; 28. Connecting hole; 29. ​​Reinforcement plate; 30. Pressure relief valve; 31. Refueling 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 invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1-8 An auxiliary device for vehicle suspension includes a fixing frame 1, a support arm 2 is provided on the front and back of the fixing frame 1, two movable frames 3 are movably hinged on opposite sides of the two support arms 2, and one side surface of each movable frame 3 is fixedly connected to the outer surface of the fixing frame 1;

[0034] The connection between each movable frame 3 and the support arm 2 is covered with a rubber sealing sleeve 10, and the inner wall of each rubber sealing sleeve 10 is fixedly connected to the outer surface of the support arm 2. It is worth mentioning that since the rubber sealing sleeve 10 is made of soft rubber material, the movable frame 3 can still be hinged and rotated along the support arm 2;

[0035] The interiors of the two support arms 2 are rotatably connected to the connecting seats 4 through ball heads, and the opposite sides of the two connecting seats 4 are fixedly connected to the support seats 24. The upper parts of the two support seats 24 are movably hinged with shock absorbers 25, and the outer surfaces of the two shock absorbers 25 are sleeved with shock absorbing springs 26. The support seats 24 cooperate with the shock absorbers 25 and the shock absorbing springs 26 to ensure the smooth operation of the vehicle suspension shock absorption and buffering work.

[0036] A rubber sleeve 7 with a ball head of the connecting seat 4 is provided at the connection between the support arm 2 and the connecting seat 4, and the bottom of the rubber sleeve 7 is connected to the upper surface of the support wall 2. The upper surfaces of the two rubber sleeves 7 are fixedly connected with sealing rubber rings 32. The inner wall of each sealing rubber ring 32 is fixedly connected to the inner wall of the connecting seat 4. The sealing rubber ring 32 can further seal the gap between the rubber sleeve 7 and the connecting seat 4 to prevent lubricating oil from leaking from the gap, thereby improving the tightness of the fit between 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 made of soft materials, the connecting seat 4 can still be rotated through the ball head support arm 2.

[0038] The outer surfaces of the two connecting seats 4 are rotatably connected to the connecting plates 27, and the front sides of the two connecting plates 27 are provided with a number of connecting holes 28. By coordinating the connecting plates 27 with the connecting holes 28, the tires and the vehicle brake structure can be normally installed and assembled with the vehicle suspension. This is the existing technology and will not be described in detail here.

[0039] An oil storage tank 5 is provided inside the fixing frame 1. The oil storage tank 5 contains lubricating oil. Specifically, reinforcement plates 29 are fixedly connected to both sides of the oil storage tank 5. The sides of the two reinforcement plates 29 away from the oil storage tank 5 are fixedly connected to the inner wall of the fixing frame 1. In this way, the oil storage tank 5 is fixedly installed by the reinforcement plates 29.

[0040] The front and back of the oil storage tank 5 are fixedly connected with oil supply hoses 6. The other ends of the two oil supply hoses 6 pass through the inside of the two rubber sleeves 7 respectively. 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 hoses 9. The other ends of the two return hoses 9 pass through the inside of the support arm 2. The two return hoses 9 pass through the connecting ball head position between the support arm 2 and the connecting seat 4.

[0041] The outer surfaces of the two oil supply hoses 6 and the outer surfaces of the two return hoses 9 are fixedly connected with a first connecting hose 11. The other end of each first connecting hose 11 passes through the interior of two rubber sealing sleeves 10. The upper surface of the oil storage tank 5 is fixedly connected with a pressure relief valve 30, and 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 high, so that the excess air pressure inside the oil storage tank 5 can be discharged smoothly. The refueling valve 31 can facilitate maintenance personnel to add lubricating oil to the inside of the oil storage tank 5.

[0042] The outer surfaces of the two oil supply hoses 6 and the outer surfaces of the two return hoses 9 are fixedly connected with a second connecting hose 12, and the other end of each second connecting hose 12 passes through the interior of the other two rubber sealing sleeves 10;

[0043] Two positioning frames 13 are fixedly connected to the upper surface of the fixing frame 1, and the bottom surfaces of the two support arms 2 are fixedly connected to the stabilizing frames 14. The interiors of the two positioning frames 13 are movably hinged with connecting blocks 15. The upper surfaces of the two support arms 2 and the upper surface of the fixing frame 1 are fixedly connected to the first positioning sleeves 33. The inner wall of each first positioning sleeve 33 is fixedly connected to the outer surface of the oil delivery hose 6. The first positioning sleeve 33 can locate the position of the oil delivery hose 6, so that the oil delivery hose 6 can move smoothly with the support arm 2, while preventing the oil delivery hose 6 from being excessively twisted and scratching other vehicle facilities.

[0044] One side of the two connecting blocks 15 is fixedly connected to a telescopic cylinder 16, and the interior of the two stabilizing frames 14 is movably hinged with a fixed block 17. One side of the two fixed blocks 17 is fixedly connected to a push rod 18, and the two push rods 18 are respectively slidably connected to the interior of the two telescopic cylinders 16. The bottom surfaces of the two support arms 2 and the bottom surface of the fixing frame 1 are fixedly connected to the second positioning sleeves 34, and the inner wall of each second positioning sleeve 34 is fixedly connected to the outer surface of the return hose 9. The second positioning sleeve 34 can limit the position of the return hose 9 to prevent the return hose 9 from contacting the ground during bending and movement, thereby increasing the safety of the return hose 9.

[0045] One end of each push rod 18 is fixedly connected to a piston 19, and both pistons 19 are slidably connected to the inside of the telescopic cylinder 16. The outer surfaces of the two telescopic cylinders 16 are fixedly connected to a second one-way valve 20. The front and back sides of the fixing frame 1 are fixedly connected to a support frame 35. The outer surface of each first connecting hose 11 is fixedly connected to the outer surface of the support frame 35. The support frame 35 can support and fix the position of the first connecting hose 11, further locate the position of the first connecting hose 11, and make the first connecting hose 11 more regular and beautiful when used.

[0046] The outer surfaces of the two telescopic cylinders 16 are fixedly connected to the air supply pipes 21, and the other ends of the two air supply pipes 21 are fixedly connected to the third one-way valves 22. The output ends of the two third one-way valves 22 are fixedly connected to the delivery pipes 23. The two delivery pipes 23 pass through the interior of the oil storage tank 5. One end of the two pistons 19 is fixedly connected to the sealing rubber plate 36, and the two sealing rubber plates 36 are respectively slidably connected to the interior of the two telescopic cylinders 16. The sealing rubber plates 36 can further close the gap between the piston 19 and the telescopic cylinder 16 to prevent gas leakage through the gap, thereby ensuring the gas pushing effect of the piston 19.

[0047] The working principle of the present invention is as follows: when the vehicle is traveling on a bumpy road and needs suspension for shock absorption, the support arm 2 will move along the hinge point of the movable frame 3 to absorb shock, and then push the push rod 18 and the piston 19 to slide inside the telescopic cylinder 16 through the stabilizing frame 14 and the fixing block 17. With the sealing of the piston 19 by the sealing rubber plate 36 and the movable hinge connection between the connecting block 15 and the positioning frame 13, the outside air is smoothly sucked into the telescopic cylinder 16 through the second one-way valve 20, and as the piston 19 moves, the air inside the telescopic cylinder 16 is sent into the oil storage tank 5 through the air supply pipe 21, the third one-way valve 22 and the delivery pipe 23, so that the oil inside the oil storage tank 5 is filled with air. As the pressure increases, the lubricating oil in the oil storage tank 5 can be respectively fed into the rubber sleeve 7 and the rubber sealing sleeve 10 through the oil feeding hose 6 and the first connecting hose 11 and the second connecting hose 12 located above, so that the lubricating oil can be timely replenished at the connection position between the connecting seat 4 and the support arm 2 and the connection position between the support arm 2 and the fixing frame 1, which are more susceptible to wear. This allows the vehicle suspension to have a self-lubricating auxiliary function at the easily worn positions when in use, so that the easily worn positions of the vehicle suspension are not prone to excessive wear due to inadequate lubrication, effectively extending the service life of the vehicle suspension, reducing the wear clearance of the vehicle suspension, and preventing abnormal noise due to excessive friction when the vehicle is driving.

[0048] At the same time, by using the return hose 9 in conjunction with the first connecting hose 11 and the second connecting hose 12 located below, the excess lubricating oil inside the rubber sleeve 7 and the rubber sealing sleeve 10 can be returned to the oil storage tank 5 for storage and secondary use. This can not only prevent the rubber sleeve 7 and the rubber sealing sleeve 10 from being ruptured due to excessive internal pressure, but also the flowing lubricating oil can take away the heat from the easily worn positions, reduce the thermal wear between the vehicle suspension moving parts, and to a certain extent take away the metal debris generated by the friction between the vehicle suspension moving parts, further improving the lubrication auxiliary effect of the vehicle suspension. Since the connection position between the oil delivery 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 enter the oil storage tank 5 with the lubricating oil and will settle to the bottom of the oil storage tank 5. Not too much metal debris will enter the rubber sleeve 7 and the rubber sealing sleeve 10 again with the oil delivery hose 6.

[0049] In the present invention, the lubricating oil flow rate (i.e. the amount of oil fed into the rubber sleeve 7 and the rubber sealing sleeve 10) meets the following requirements:

[0050]

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

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0054] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An auxiliary device for vehicle suspension, comprising a fixing frame (1), wherein the front and back sides of the fixing frame (1) are both provided with support arms (2), a movable frame (3) is provided on the support arm (2), the movable frame (3) is movably hinged to the support arm (2), and the outer surface of the fixing frame (1) is fixedly connected to one side of the movable frame (3); the interior of the support arm (2) is rotatably connected to a connecting seat (4) through a ball head, a rubber sleeve (7) is provided at the connection between the support arm (2) and the connecting seat (4), an oil storage tank (5) is provided inside the fixing frame (1), and the front and back sides of the oil storage tank (5) are both fixedly connected to an oil supply hose (6), and the oil supply hose (6) passes through the interior of the rubber sleeve (7).

2. The auxiliary device for vehicle suspension according to claim 1, characterized in that: The upper surface of the oil storage tank (5) is fixedly connected to a first one-way valve (8), and the input end of the first one-way valve (8) is fixedly connected to a return hose (9), and the return hose (9) passes through the connection ball head position between the support arm (2) and the connection seat (4).

3. The auxiliary device for vehicle suspension according to claim 1, characterized in that: The outer surface of the oil supply hose (6) and the outer surface of the return hose (9) are both fixedly connected to a first connecting hose (11), and the first connecting hose (11) passes through the interior of the rubber sealing sleeve (10).

4. The auxiliary device for vehicle suspension according to claim 1, characterized in that: The upper surface of the fixing frame (1) is fixedly connected to a positioning frame (13), the bottom surface of the support arm (2) is fixedly connected to a stabilizing frame (14), the internal movable hinge of the positioning frame (13) is connected to a connecting block (15), one side of the connecting block (15) is fixedly connected to a telescopic cylinder (16), the internal movable hinge of the stabilizing frame (14) is connected to a fixing block (17), one side of the fixing block (17) is fixedly connected to a push rod (18), the push rod (18) is slidably connected to the inside of the telescopic cylinder (16), one end of the push rod (18) is fixedly connected to a piston (19), and the piston (19) is slidably connected to the inside of the telescopic cylinder (16).

5. The auxiliary device for vehicle suspension according to claim 4, characterized in that: The outer surface of the telescopic cylinder (16) is fixedly connected to a second one-way valve (20), the outer surface of the telescopic cylinder (16) is fixedly connected to an air supply pipe (21), the other end of the air supply pipe (21) is fixedly connected to a third one-way valve (22), the output end of the third one-way valve (22) is fixedly connected to a delivery pipe (23), the delivery pipe (23) passes through the interior of the oil storage tank (5), one end of the piston (19) is fixedly connected to a sealing rubber plate (36), and the sealing rubber plate (36) is slidably connected to the interior of the telescopic cylinder (16).

6. The auxiliary device for vehicle suspension according to claim 1, characterized in that: The outer surfaces of the two connecting seats (4) are both rotatably connected to connecting disks (27), and the front surfaces of the two connecting disks (27) are each provided with a plurality of connecting holes (28).

7. The auxiliary device for vehicle suspension according to claim 1, characterized in that: Both side surfaces of the oil storage tank (5) are fixedly connected to reinforcement plates (29), and the sides of the two reinforcement plates (29) away from the oil storage tank (5) are fixedly connected to the inner wall of the fixing frame (1).

8. The auxiliary device for vehicle suspension according to claim 1, characterized in that: The upper surface of the oil storage tank (5) is fixedly connected to a pressure relief valve (30), and the side of the oil storage tank (5) is fixedly connected to a refueling valve (31).

9. The auxiliary device for vehicle suspension according to claim 1, characterized in that: A sealing rubber ring (32) is fixedly connected to the upper surface of the rubber sleeve (7), and the inner wall of the sealing rubber ring (32) is fixedly connected to the inner wall of the connecting seat (4).

10. The auxiliary device for vehicle suspension according to claim 1, characterized in that: The lubricating oil flow rate ; In the above formula, represents the radius of the oil delivery hose (6), Indicates the dynamic viscosity of lubricating oil, Indicates the length of the oil delivery hose (6), represents the initial pressure of the oil tank (5), Indicates the density of lubricating oil, Indicates the height of the oil column in the oil storage tank (5), represents the initial gas volume of the oil tank (5), represents the cross-sectional area of ​​the piston (19), represents the stroke of the piston (19), Represents the gas compressibility coefficient.

Images