A truck front suspension air spring shock absorber and anti-roll damping system

Abstract

The invention discloses an air spring shock absorber and an anti-roll damping system for a truck front suspension, wherein the shock absorber comprises an air spring, a damper, an accumulator, a valve, an upper hanging ear, and a lower hanging ear; the damper comprises an end cover, a piston rod, a working piston, a floating piston, and a damping cylinder; and the air spring comprises a top cover, a bladder skin, a waist ring, and an air spring base. The air spring is connected to the accumulator pipeline to change the stiffness of the air spring. The damping of the damper can be changed by the cooperation of the working piston and the floating piston. The two shock absorbers are connected by a hose through a valve to prevent the truck from rolling. The shock absorber and the damping system can make the truck run more smoothly and safely.

Description

Technical Field

[0001] The invention relates to the technical field of shock absorbers, and in particular to an air spring shock absorber for a front suspension of a truck and an anti-rolling vibration reduction system. Background Art

[0002] Some existing air spring shock absorbers have some problems when in use. During the working process, a control air valve needs to be installed on the suspension for air intake and exhaust. The structure is complex, the installation is cumbersome and easy to damage. The mainstream air suspension realizes the function of shock absorber through the charging and discharging of the air pump. The control system is complex, energy-intensive, and not suitable for heavy loads. The reliability is poor, the maintenance cost is high, and it is mostly used in luxury cars and is not suitable for complex road conditions. Summary of the invention

[0003] The purpose of the present invention is to provide a truck front suspension air spring shock absorber and an anti-roll damping system, which can help the truck cope with more complex road conditions and larger impacts by changing damping and stiffness, and prevent the truck from rolling by connecting two shock absorbers through a valve body.

[0004] To achieve the above-mentioned purpose, the present invention protects, on the one hand, an air spring shock absorber for a front suspension of a truck, comprising an air spring, a damper, an accumulator, a valve, an upper lifting ear, and a lower lifting ear, wherein the damper comprises an end cover, a piston rod, a working piston, a floating piston, and a damping cylinder; the air spring comprises a top cover, a bladder skin, a waist ring, and an air spring base; the end cover seals the upper opening of the damping cylinder, a part of the piston rod is located in the damping cylinder, and the other part passes through the end cover and is located above the end cover, the working piston is located in the damping cylinder and is fixedly connected to the lower end of the piston rod, and the floating piston is located in the Inside the damping cylinder, below the working piston; the air spring base is threadedly connected to the upper part of the damping cylinder, the bottom of the bladder skin is fixed on the air spring base, the upper opening is sealed by the top cover, and the lower part of the bladder skin is wrapped by the waist ring; the upper part of the top cover is fixedly connected to the upper lifting ear, and the upper end of the piston rod passes through the top cover and is fixedly connected to the upper lifting ear; the lower lifting ear is threadedly connected to the bottom of the damping cylinder, the valve is fixed on one side of the lower part of the damping cylinder, the bottom of the accumulator is threadedly connected to the lower lifting ear, and the accumulator is connected to the inside of the air spring through a pipeline via the valve.

[0005] Furthermore, the damping cylinder includes a limiting ring, a through hole a, a through hole b, and a through hole c. The floating piston is located between the working piston and the limiting ring. The through hole a is located on one side of the damping cylinder 6 and at the bottom of the limiting ring. The through hole b and the through hole c are located on the other side of the damping cylinder 6 and at the bottom of the limiting ring. The through hole b is located below the through hole c. The upper cavity of the floating piston is filled with oil, and the lower cavity is filled with gas.

[0006] Furthermore, the working piston includes a stop ring a, a conical spring a, a baffle a, a stop ring b, a conical spring b, a baffle b, a limiting ring, a piston body, a stop ring c, a conical spring c, a baffle c, a stop ring d, a conical spring d, a baffle d, and a wear-resistant ring, wherein one side of the piston body is clamped on the shoulder of the piston rod, the limiting ring is threadedly connected to the piston rod 3 to fix the other side of the piston body, and the wear-resistant ring is surrounded by the outer side of the piston body; the piston body is provided with flow channels b, a, c, and d; the stop ring a is threadedly connected to 3 on the piston rod, the lower side of the stop ring a is against the upper end of the conical spring a, and the lower end of the conical spring a is in contact with the The baffle a is welded and fixed to block the upper port of the flow channel a; the stop ring b is threadedly connected to the piston rod, the lower side of the stop ring b abuts the upper end of the conical spring b, and the lower end of the conical spring b is welded and fixed to the baffle b to block the upper port of the flow channel b; the stop ring c is threadedly connected to the piston rod, the upper side of the stop ring c abuts the lower end of the conical spring c, and the upper end of the conical spring c is welded and fixed to the baffle c to block the lower port of the flow channel c; the stop ring d is threadedly connected to the piston rod, the upper side of the stop ring d abuts the lower end of the conical spring d, and the upper end of the conical spring d is welded and fixed to the baffle d to block the lower port of the flow channel d.

[0007] Furthermore, the valve includes a valve body, a spring a, an upper valve core, a lower valve core, a valve cover, a protective cover, an adjusting rod, a spring seat, a spring b, and an interface f, wherein the upper valve core is in the middle position of the channel under the action of two identical springs a on the left and right, and the vertical channel is in an open state at this time. The left side of the upper valve core is the through hole a, which is connected to the lower chamber of the shock absorber, and the right side is the interface f; the lower valve core is in the left side of the channel under the action of the spring b, and the vertical channel is in a closed state at this time. The valve cover is fixed to the valve body by screws, and the adjusting rod is connected to the valve cover by threads, one end of the adjusting rod is connected to the spring seat, and the other end is connected to the protective cover, and the position of the spring seat can be changed by twisting the adjusting rod, thereby changing the stiffness of the spring b, and then changing the opening pressure of the lower valve core.

[0008] Furthermore, the upper opening of the bladder skin is fixed to the top cover through an upper pressure ring; and the lower opening of the bladder skin is fixed to the air spring base through a lower pressure ring.

[0009] Furthermore, the shock absorber also includes interface a, interface b, interface c, interface d, interface e, connecting pipe a, connecting pipe b, and pipeline fixings, wherein interface a is located on the cylinder body of the damping cylinder 6, interface b is located on the lower lifting ear and communicated with the lower port of the accumulator, interface c is located at the bottom of the valve body, connecting pipe a connects interface b and interface c, interface d is located at the upper part of the valve body, interface e is located on the air spring base and communicated with the inside of the bladder skin, both ends of the connecting pipe b are connected to interface d and interface e, and the pipeline fixings are used to fix the connecting pipe a and the connecting pipe b.

[0010] On the other hand, the present invention also protects an anti-roll damping system, comprising two shock absorbers of the same configuration, wherein interface a of one shock absorber is connected to interface f of a valve of another shock absorber through a hose; interface a on the other shock absorber is connected to interface f of the valve on the shock absorber.

[0011] The beneficial effects of the present invention are: (1) by arranging an air spring and an accumulator on the shock absorber, the function of changing the stiffness of the air spring can be realized; (2) by designing the working piston and cooperating with the floating piston, the function of changing the damping can be realized; (3) by connecting the two shock absorbers, the truck can be prevented from rolling over; (4) the realization of the above functions can make the truck more stable and safer during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the shock absorber;

[0013] Figure 2 is an exploded view of the working piston;

[0014] Figure 3 It is a schematic diagram of the working piston mounted on the piston rod;

[0015] Figure 4 It is a schematic diagram of the structure of the piston body;

[0016] Figure 5 It is a schematic diagram of the structure of each flow channel of the piston body;

[0017] Figure 6 is a schematic diagram of the damping cylinder;

[0018] Figure 7 It is a schematic diagram of the valve structure;

[0019] Figure 8 is a schematic diagram of the anti-roll damping system;

[0020] In the figure, 1-upper lifting ear, 2-end cover, 3-piston rod, 4-working piston, 401-stop ring a, 402-conical spring a, 403-blocking piece a, 404-stop ring b, 405-conical spring b, 406-blocking piece b, 407-limiting ring, 408-piston body, 409-stop ring c, 410-conical spring c, 411-blocking piece c, 412-stop ring d, 413-conical spring d, 414-blocking piece d, 415-wear-resistant ring, 5-floating piston, 6-damping cylinder, 601-limiting ring, 602-through hole a, 603-through hole b, 604-through hole c, 7 - accumulator, 8- port a, 9- lower lifting ear, 10- port b, 11- connecting pipe a, 12- port c, 13- valve, 1301- valve body, 1302- spring a, 1303- upper valve core, 1304- lower valve core, 1305- valve cover, 1306- shield, 1307- adjusting rod, 1308- spring seat, 1309- spring b, 1310- port f, 14- port d, 15- pipe fixing part, 16- waist ring, 17- air spring base, 18- lower pressure ring, 19- connecting pipe b, 20- air spring bag skin, 21 port e, 22- upper pressure ring, 23- top cover; DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 As shown, a truck front suspension air spring shock absorber includes an air spring, a damper, an accumulator 7, a valve, an upper lifting lug 1, and a lower lifting lug 9. The damper includes an end cover 2, a piston rod 3, a working piston 4, a floating piston 5, and a damping cylinder 6. The air spring includes a top cover 23, a bladder skin 20, a waist ring 16, and an air spring base 17. The end cover 2 seals the upper opening of the damping cylinder 6. A portion of the piston rod 3 is located in the damping cylinder 6, and the other portion passes through the end cover 2 and is located above the end cover 2. The working piston 4 is located in the damping cylinder 6 and is fixedly connected to the lower end of the piston rod 3. The floating piston 5 is located in the damping cylinder 6 and below the working piston 4. The air spring base 17 is threadedly connected to the upper part of the damping cylinder 6. The bottom opening of the bladder skin 20 is fixed on the air spring base 17, and the upper opening is sealed by the top cover 23. The lower part of the bladder skin 20 is wrapped by the waist ring 16, and the upper part will expand and compress with the action of the shock absorber. The upper part of the top cover 23 is fixedly connected to the upper lifting ear 1, and the upper end of the piston rod 3 passes through the top cover 23 and is fixedly connected to the upper lifting ear 1. The lower lifting ear 9 is threadedly connected to the bottom of the damping cylinder 6, the valve 13 is fixed to one side of the lower part of the damping cylinder 6, the bottom of the accumulator 7 is threadedly connected to the lower lifting ear 9, and the accumulator 7 is connected to the inside of the air spring through the pipeline through the valve 13.

[0023] like Figure 6As shown, the damping cylinder 6 includes a stop ring 601, a through hole a602, a through hole b603, and a through hole c604. The floating piston 5 is located between the working piston 4 and the stop ring 601. The through hole a602 is located at one side of the damping cylinder 6 and at the bottom of the stop ring 601. The through holes b603 and c604 are located at the other side of the damping cylinder 6 and at the bottom of the stop ring 601. The through hole b603 is located at the lower part of the through hole c604. The upper cavity of the floating piston 5 is filled with oil, and the lower cavity is filled with gas.

[0024] like Figure 2 , Figure 3 As shown, the working piston 4 includes a stop ring a401, a conical spring a402, a baffle a403, a stop ring b404, a conical spring b405, a baffle b406, a limit ring 407, a piston body 408, a stop ring c409, a conical spring c410, a baffle c411, a stop ring d412, a conical spring d413, a baffle d414, and a wear-resistant ring 415, wherein one side of the piston body 408 is clamped on the shoulder of the piston rod 3, the limit ring 407 is connected to the piston rod 3 by a thread, fixing the other side of the piston body 408, and the outer side of the piston body 408 is surrounded by a wear-resistant ring 415. Figure 4 It is a schematic diagram of the structure of the piston body. Figure 5 As shown in (a) and (b), Figure 5 (b) Yes Figure 5 (a) AA sectional view, flow passage b416, flow passage a417, flow passage c418, and flow passage d419 are opened inside the piston body 408. The stop ring a401 is threadedly connected to the piston rod 3, the lower side of the stop ring a401 abuts against the upper end of the conical spring a402, the lower end of the conical spring a402 is welded and fixed to the baffle a403, blocking the upper end of the flow passage a417. The stop ring b404 is threadedly connected to the piston rod 3, the lower side of the stop ring b404 abuts against the upper end of the conical spring b405, the lower end of the conical spring b405 is welded and fixed to the baffle b406, blocking the upper end of the flow passage b416. The stop ring c409 is threadedly connected to the piston rod 3, and the upper side of the stop ring c409 abuts against the lower end of the conical spring c410. The upper end of the conical spring c410 is welded and fixed to the baffle c411 to block the lower end of the flow channel c418. The stop ring d412 is threadedly connected to the piston rod 3, and the upper side of the stop ring d412 abuts against the lower end of the conical spring d413. The upper end of the conical spring d413 is welded and fixed to the baffle d414 to block the lower end of the flow channel d419.

[0025] like Figure 7As shown, the valve 13 includes a valve body 1301, a spring a1302, an upper valve core 1303, a lower valve core 1304, a valve cover 1305, a shield 1306, an adjustment rod 1307, a spring seat 1308, a spring b1309, and an interface f1310, wherein the upper valve core 1303 is in the middle of the channel under the action of two identical springs a1302 on the left and right, and the vertical channel is in an open state at this time, the left side of the upper valve core 1303 is a through hole a602, which is connected to the lower chamber of the shock absorber, and the right side is an interface f1310. The lower valve core 1304 is in the left side of the channel under the action of the spring b1309, and the vertical channel is in a closed state at this time. The valve cover 1305 is fixed to the valve body 1301 by screws, and the adjusting rod 1307 is connected to the valve cover 1305 by threads. One end of the adjusting rod 1307 is connected to the spring seat 1308, and the other end is connected to the protective cover 1306. By turning the adjusting rod 1307, the position of the spring seat 1308 can be changed, thereby changing the stiffness of the spring b1309, and then changing the opening pressure of the lower valve core 1304.

[0026] like Figure 1 As shown, the upper opening of the bladder skin 20 is fixed on the top cover 23 by an upper pressure ring 22. The lower opening of the bladder skin 20 is fixed on the air spring base 17 by a lower pressure ring 18.

[0027] like Figure 1 As shown, the shock absorber also includes interface a8, interface b10, interface c12, interface d14, interface e21, connecting pipe a11, connecting pipe b19, and pipeline fixing part 15. Interface a8 is located on the cylinder body of the damping cylinder 6, interface b10 is located on the lower lifting ear 9 and communicates with the lower port of the accumulator 7, interface c12 is located at the bottom of the valve body 1301, connecting pipe a11 connects interface b10 and interface c12, interface d14 is located at the upper part of the valve body 1301, interface e21 is located on the air spring base 17 and communicates with the inside of the bladder skin 20, both ends of the connecting pipe b19 are connected to interface d14 and interface e21, and the pipeline fixing part 15 is used to fix the connecting pipe a11 and the connecting pipe b19.

[0028] In the above structure, the accumulator 7 is fixed on the lower hanging ear 9 by threaded connection, and a through hole is provided at the interface between the lower hanging ear 9 and the accumulator 7, and the corresponding interface b10 below is connected to the interface c12 below the valve body 1301 through a hose. A through hole is provided inside the air spring base 17, and the upper end of the through hole is connected to the inside of the air spring, and the corresponding interface e21 below is connected to the interface d14 above the valve body 1301 through a hose. In this way, a loop is formed between the accumulator 7, the valve 13, and the air spring, so that the gas in the air spring can be connected to the gas in the accumulator 7. Under normal circumstances, the pressure in the air spring is equal to the pressure in the accumulator 7, and the upper valve core 1303 in the valve 13 is in the middle position of the channel under the action of the two identical springs a on the left and right, and the upper valve core 1303 is in an open state, and the lower valve core 1304 is on the left side of the channel under the action of the spring b, and the lower valve core 1304 is in a closed state. At this time, the vertical channel is in a closed state as a whole, and the air spring and the accumulator 7 are not connected. When the truck encounters a large impact, the air spring is compressed, the oil pressure in the upper chamber is large, and the floating piston 5 moves downward, resulting in a large gas pressure in the lower chamber. When the gas pressure in the lower chamber is greater than the pressure of the spring b1309, the lower valve core 1304 moves to the right under the action of the gas pressure, and the opening of the lower valve core 1304 reaches the center of the vertical channel, and the lower valve opens. Under the premise that the upper valve core 1303 is open, the vertical channel is in an open state as a whole. At this time, the air spring is squeezed, and the gas pressure in the air spring is greater than the pressure in the accumulator. The gas in the air spring is discharged into the accumulator, and the compressible amount of the air spring increases, so it can withstand greater impacts. The change in the stiffness of the air spring is achieved.

[0029] When the truck encounters an impact, the air spring is compressed, the piston moves downward, the pressure of the oil under the piston is greater than the pressure of the conical spring a402, the oil lifts up the baffle a403, and the oil flows from the bottom of the piston to the top of the piston through the flow channel a417. When the truck encounters a greater impact, the pressure of the oil under the piston is greater than the sum of the pressures of the conical spring a402 and the conical spring b405, the oil lifts up the baffle a403 and b406 at the same time, and the oil flows from the bottom of the piston through the flow channel a417 and the side flow channel b416 to the top of the piston at the same time. When the truck rebounds after encountering an impact, the air spring stretches, the piston moves upward, the pressure of the oil above the piston is greater than the pressure of the conical spring c410, the oil lifts up the baffle c411, and the oil flows from the top of the piston through the flow channel c418 to the bottom of the piston. When the truck rebounds after encountering a greater impact, the oil pressure above the piston is greater than the sum of the pressures of the conical spring c410 and the conical spring d413, and the oil lifts up the baffle c411 and the baffle d414 at the same time, and the oil flows from the top of the piston through the flow channel c418 and the side flow channel d419 to the bottom of the piston at the same time, thereby realizing the variable damping function.

[0030] However, when the air spring on one side of the truck is compressed too much and the air spring on the other side is compressed less, the truck body on one side is lower and the truck body on the other side is higher, for example, when the truck is turning sharply, the truck is prone to rollover. To avoid this, an upper valve core 1303, an anti-roll valve, is provided on the shock absorber.

[0031] like Figure 8 As shown, the present invention also discloses an anti-roll damping system, including two shock absorbers of the same configuration, wherein the interface a8 of one shock absorber is connected to the interface f1310 of the valve of the other shock absorber through a hose. The interface a8 on the other shock absorber is connected to the interface f1310 of the valve on the shock absorber. When the air spring in the shock absorber on one side is compressed too much, and the pressure of the gas in its lower chamber is much greater than the pressure of the gas in the lower chamber in the shock absorber on the other side, the upper valve core 1303 will move to the left or right, so that the vertical channel is closed, and the air spring cannot obtain a larger compression amount, thereby preventing roll. During rebound, the gas pressure in the accumulator 7 is greater than the gas pressure in the air spring, and the gas flows from the accumulator 7 to the air spring through the valve 13, the air spring stretches, the working piston 4 moves up, the oil pressure decreases, the floating piston 5 moves up, the gas pressure in the lower chamber decreases, and when the pressure is less than the pressure of the spring b1309, the lower valve core 1304 moves to the left, the vertical channel is closed, and the shock absorber returns to normal. In this way, the anti-roll function can be achieved.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Various changes that can be made within the knowledge scope of technicians in the relevant technical field without departing from the spirit of the present invention are all within the protection scope of the claims of the present invention.

Claims

1. A truck front suspension air spring shock absorber, characterized in that: The invention comprises an air spring, a damper, an accumulator (7), a valve (13), an upper lifting ear (1) and a lower lifting ear (9); the damper comprises an end cover (2), a piston rod (3), a working piston (4), a floating piston (5) and a damping cylinder (6); the air spring comprises a top cover (23), a bladder skin (20), a waist ring (16) and an air spring base (17); the end cover (2) seals the upper opening of the damping cylinder (6); a part of the piston rod (3) is located in the damping cylinder (6), and the other part passes through the end cover (2) and is located above the end cover (2); the working piston (4) is located in the damping cylinder (6) and is fixedly connected to the lower end of the piston rod (3); the floating piston (5) is located in the damping cylinder (6) and the working piston (4) ... Below; the air spring base (17) is threadedly connected to the upper part of the damping cylinder (6), the bottom of the bladder skin (20) is fixed on the air spring base (17), the upper part is sealed by the top cover (23), and the lower part of the bladder skin (20) is wrapped by the waist ring (16); the upper part of the top cover (23) is fixedly connected to the upper lifting ear (1), and the upper end of the piston rod (3) passes through the top cover (23) and is fixedly connected to the upper lifting ear (1); the lower lifting ear (9) is threadedly connected to the bottom of the damping cylinder (6), the valve (13) is fixed to one side of the lower part of the damping cylinder (6), the bottom of the accumulator (7) is threadedly connected to the lower lifting ear (9), and the accumulator (7) is connected to the inside of the air spring through a pipeline through the valve (13); The working piston (4) comprises a stop ring a (401), a conical spring a (402), a baffle a (403), a stop ring b (404), a conical spring b (405), a baffle b (406), a limiting ring (407), a piston body (408), a stop ring c (409), a conical spring c (410), a baffle c (411), a stop ring d (412), a conical spring d (413), a baffle d (414), and a wear-resistant ring (415), wherein one side of the piston body (408) is clamped on the piston The piston rod (3) is provided with a stop ring (407) which is connected to the piston rod (3) by a thread, fixing the other side of the piston body (408); the outer side of the piston body (408) is surrounded by the wear-resistant ring (415); the piston body (408) is provided with a flow channel b (416), a flow channel a (417), a flow channel c (418), and a flow channel d (419); the stop ring a (401) is connected to the piston rod (3) by a thread, and the lower side of the stop ring a (401) is pressed against the conical spring a (402). The conical spring a (402) is welded to the baffle a (403) to block the upper end of the flow channel a (417); the stop ring b (404) is threadedly connected to the piston rod (3); the lower side of the stop ring b (404) abuts against the upper end of the conical spring b (405); the lower end of the conical spring b (405) is welded to the baffle b (406) to block the upper end of the flow channel b (416); the stop ring c (409) is threadedly connected to the piston rod (3); the The upper side of the stop ring c (409) abuts against the lower end of the conical spring c (410), and the upper end of the conical spring c (410) is welded and fixed to the baffle c (411), blocking the lower end of the flow channel c (418); the stop ring d (412) is threadedly connected to the piston rod (3), and the upper side of the stop ring d (412) abuts against the lower end of the conical spring d (413), and the upper end of the conical spring d (413) is welded and fixed to the baffle d (414), blocking the lower end of the flow channel d (419).

2. The truck front suspension air spring shock absorber according to claim 1, characterized in that: The damping cylinder (6) comprises a limiting ring (601), a through hole a (602), a through hole b (603), and a through hole c (604); the floating piston (5) is located between the working piston (4) and the limiting ring (601); the through hole a (602) is located on one side of the damping cylinder (6) and at the bottom of the limiting ring (601); the through hole b (603) and the through hole c (604) are located on the other side of the damping cylinder 6 and at the bottom of the limiting ring (601); the through hole b (603) is located at the lower part of the through hole c (604); the upper cavity of the floating piston (5) is filled with oil, and the lower cavity is filled with gas.

3. The truck front suspension air spring shock absorber according to claim 2, characterized in that: The valve (13) comprises a valve body (1301), a spring a (1302), an upper valve core (1303), a lower valve core (1304), a valve cover (1305), a shield (1306), an adjusting rod (1307), a spring seat (1308), a spring b (1309), and an interface f (1310), wherein the upper valve core (1303) is located in the middle of the channel under the action of two identical springs a (1302) on the left and right, and the vertical channel is in an open state at this time; the left side of the upper valve core (1303) is the through hole a (602) connected to the lower chamber of the shock absorber, and the right side is the interface f (1310); the lower valve The core (1304) is located on the left side of the channel under the action of the spring b (1309), and the vertical channel is in a closed state at this time; the valve cover (1305) is fixed to the valve body (1301) by screws, and the adjusting rod (1307) is connected to the valve cover (1305) by threads, one end of the adjusting rod (1307) is connected to the spring seat (1308), and the other end is connected to the protective cover (1306), and the position of the spring seat (1308) can be changed by twisting the adjusting rod (1307), thereby changing the stiffness of the spring b (1309), and then changing the opening pressure of the lower valve core (1304).

4. The truck front suspension air spring shock absorber according to claim 3, characterized in that: The upper end of the bladder skin (20) is fixed to the top cover (23) via an upper pressure ring (22); the lower end of the bladder skin (20) is fixed to the air spring base (17) via a lower pressure ring (18).

5. The truck front suspension air spring shock absorber according to claim 4, characterized in that: The shock absorber further comprises an interface a (8), an interface b (10), an interface c (12), an interface d (14), an interface e (21), a connecting pipe a (11), a connecting pipe b (19), and a pipeline fixing member (15); the interface a (8) is located on the cylinder body of the damping cylinder (6); the interface b (10) is located on the lower hanging ear (9) and communicates with the lower opening of the accumulator (7); the interface c (12) is located at the bottom of the valve body (1301); The connecting pipe a (11) connects the interface b (10) and the interface c (12), the interface d (14) is located at the upper part of the valve body (1301), the interface e (21) is located on the air spring base (17) and communicates with the interior of the bladder skin (20), the two ends of the connecting pipe b (19) are connected to the interface d (14) and the interface e (21), and the pipeline fixing member (15) is used to fix the connecting pipe a (11) and the connecting pipe b (19).

6. An anti-roll damping system, characterized in that: The invention comprises two shock absorbers as claimed in claim 5 of identical configuration, wherein the interface a (8) of one shock absorber is connected to the interface f (1310) of the valve of the other shock absorber through a hose; and the interface a (8) on the other shock absorber is connected to the interface f (1310) of the valve on the shock absorber.

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