Energy accumulator with one-way adjustable damping

Abstract

The utility model discloses an energy accumulator with one-way adjustable damping, which belongs to the technical field of hydro-pneumatic suspension systems, and comprises an energy storage main body, a piston, an inflation joint and a damping adjusting component, the piston is in sliding connection with the energy storage main body and is arranged in the energy storage cavity; the inflation connector is detachably connected with the energy storage body and arranged on one side of the energy storage body. One end of the damping adjusting assembly penetrates through the energy storage body and extends into the energy storage cavity, the other end of the damping adjusting assembly is used for being communicated with the hydro-pneumatic spring, and a connecting cavity is formed in the damping adjusting assembly and communicated with or disconnected from the energy storage cavity through opening and closing of the damping valve body or the one-way valve body. The energy accumulator with the one-way adjustable damping solves the problems that in the prior art, the requirement of a user for personalized damping cannot be met, adjustment is inconvenient, the structure is complex, and disassembly, assembly and maintenance are difficult. The utility model has the advantages of simple structure and obvious effect, and is suitable for wide popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-gas suspension systems, in particular to an accumulator with unidirectional adjustable damping. Background Art

[0002] The accumulator is one of the main components of the chassis suspension system of the automobile, and the chassis suspension system is one of the key components of the vehicle. The oil-gas suspension system is mainly composed of oil-gas springs, accumulators, and hydraulic control circuits. The oil-gas springs and accumulators work together to mitigate the vibration of the vehicle and improve driving comfort. Oil-gas springs with damping functions have begun to be used in some high-end vehicles. Since the damping adjustment mechanism of such products is inside the oil-gas springs, the structure is compact, but maintenance is extremely inconvenient. With the growing demand for personalized damping by users, it is necessary to develop an accumulator with convenient damping adjustment and compact structure to improve the market competitiveness of the entire suspension system.

[0003] With the development of automobile technologies such as special vehicles and off-road vehicles, oil-gas suspension systems have been widely used in special vehicle chassis and off-road chassis, and have broad market prospects. Utility Model Content

[0004] In view of the above defects, the technical problem solved by the utility model is to provide an accumulator with one-way adjustable damping to solve the problems existing in the existing technology that it cannot meet the user's demand for personalized damping, is inconvenient to adjust, has a complex structure, and is difficult to disassemble and maintain.

[0005] The utility model provides an accumulator with unidirectional adjustable damping, comprising:

[0006] An energy storage body is provided with an energy storage chamber;

[0007] A piston is slidably connected to the energy storage body and is disposed in the energy storage chamber;

[0008] An inflatable joint, which is detachably connected to the energy storage body and is arranged on one side of the energy storage body;

[0009] The damping adjustment component has one end that penetrates the energy storage body and extends into the energy storage chamber, and the other end is used to communicate with the oil and gas spring. The damping adjustment component is provided with a connecting chamber, and the connecting chamber is connected or disconnected with the energy storage chamber through the opening and closing of the damping valve body or the one-way valve body.

[0010] Preferably, the damping adjustment component further comprises:

[0011] A valve body connected to the energy storage body and one end of which is connected to the oil and gas spring through a pipeline, and the connecting chamber is arranged on the valve body;

[0012] A fastener is disposed in the energy storage chamber and at the other end of the valve body;

[0013] The valve seat is connected to the valve body, the valve body passes through the valve seat and is connected to the fastener, the damping valve body is arranged on one side of the valve seat, and the one-way valve body is arranged on the other side of the valve seat.

[0014] Preferably, the energy storage body comprises:

[0015] A cylinder body is slidably connected to the piston, and one end of the cylinder body is provided with a fixing hole connected to the inflation joint;

[0016] An end cover connected to the other end of the cylinder body and to the damping adjustment assembly, wherein the energy storage chamber is formed between the end cover and the cylinder body;

[0017] A plurality of brackets are connected to the cylinder body.

[0018] Preferably, a plurality of one-way valve oil holes and a plurality of pressure regulating valve oil holes are circumferentially arranged on the valve seat, and the plurality of one-way valve oil holes and the plurality of pressure regulating valve oil holes are alternately arranged.

[0019] Preferably, the damping valve body is arranged between the valve seat and the fastener, and the one-way valve body is arranged on a side of the valve seat away from the damping valve body.

[0020] Preferably, a first elastic body is provided between the one-way valve body and the valve body; and a second elastic body is provided between the damping valve body, the valve seat and the fastener.

[0021] Preferably, the valve body comprises:

[0022] A connecting portion connected to the end cover and engaged with the first elastic body, the connecting cavity is arranged on the connecting portion, and a liquid passage cavity is formed between the connecting portion, the valve seat and the end cover;

[0023] A connecting portion, one end of which is integrally formed with one end of the connecting portion and is connected to the connecting portion, and the other end of which is connected to the oil-gas spring;

[0024] The mounting column is integrally formed with the other end of the connecting portion, and sequentially penetrates the first elastic body, the one-way valve body, the valve seat, the damping valve body and the second elastic body and is connected to the fastener.

[0025] Preferably, a limit platform engaged with the end cover is provided on the connecting portion, and the limit platform is used to limit the installation position of the valve body.

[0026] Preferably, a sealing groove is provided on the connecting portion, and the sealing groove is arranged on a side of the limiting platform close to the valve seat; a first sealing member is provided in the sealing groove, and the first sealing member is connected to the connecting portion and the end cover at the same time.

[0027] Preferably, a plurality of the damping valve bodies are arranged side by side; and a communication port which is connected with both the connecting cavity and the oil hole of the pressure regulating valve is provided on the one-way valve body.

[0028] It can be seen from the above scheme that the accumulator with one-way adjustable damping provided by the utility model is used for the oil-gas suspension vibration reduction system. It uses 99.9% high-purity nitrogen as the elastic medium and hydraulic oil as the transmission medium, and has good buffering and vibration reduction effects. The accumulator with one-way adjustable damping has a damping function through the setting of the damping adjustment component, simplifies the structure of the oil-gas spring, and installs the damping adjustment component in the energy storage body for easy disassembly and maintenance, and has a more compact structure and low cost. The damping size can be adjusted according to the customer's personality and road conditions through the setting of the damping valve body and the one-way valve body in the damping adjustment component, effectively improving the personalized needs of vehicle driving. The utility model solves the problems that the existing technology cannot meet the user's needs for personalized damping, is inconvenient to adjust, has a complex structure, and is difficult to disassemble and maintain. It has a simple structure and significant effect, and is suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the main structure of an accumulator with one-way adjustable damping provided by the utility model;

[0031] Figure 2 For along Figure 1 The cross-sectional structure diagram along the AA line;

[0032] Figure 3 A schematic diagram of the exploded structure of a damping adjustment component of an accumulator with one-way adjustable damping provided by the utility model;

[0033] Figure 4 A schematic structural diagram of a damping adjustment component of an accumulator with unidirectional adjustable damping provided by the utility model;

[0034] Figure 5 For along Figure 4The cross-sectional structure diagram of the middle DD line and the schematic diagram of the oil circuit when the damping valve body is working;

[0035] Figure 6 For along Figure 4 The cross-sectional structure diagram of the middle DD line and the schematic diagram of the oil circuit when the one-way valve body is working;

[0036] Figure 7 A schematic structural diagram of a valve body of an accumulator with one-way adjustable damping provided by the utility model;

[0037] Figure 8 A schematic structural diagram of another valve seat of an accumulator with one-way adjustable damping provided by the utility model;

[0038] Fig. 9 The utility model provides a schematic diagram of the hydraulic principle of an accumulator with one-way adjustable damping.

[0039] Figure 1-9 middle:

[0040] 1. Energy storage body; 2. Piston; 3. Inflatable joint; 4. Damping adjustment assembly; 5. Oil and gas spring; 6. Stop valve; 7. Solenoid valve; 11. Cylinder body; 12. End cover; 13. Bracket; 41. Damping valve body; 42. One-way valve body; 43. Valve body; 44. Fastener; 45. Valve seat; 46. Second elastic body; 47. First elastic body; 111. Energy storage chamber; 431. Connecting part; 432. Connecting part; 433. Mounting column; 434. Limiting platform; 451. Pressure regulating valve oil hole; 452. One-way valve oil hole; 4311. Connecting chamber; 4312. Liquid passage chamber. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] Please also read Figures 1 to 9Now, a specific implementation of an accumulator with one-way adjustable damping provided by the utility model is described. The accumulator with one-way adjustable damping includes an energy storage body 1, a piston 2, a charging joint 3, and a damping adjustment component 4, wherein the energy storage body 1 is provided with an energy storage chamber 111; the piston 2 is slidably connected to the energy storage body 1 and is arranged in the energy storage chamber 111; the charging joint 3 is detachably connected to the energy storage body 1 and is arranged on one side of the energy storage body 1; one end of the damping adjustment component 4 penetrates the energy storage body 1 and extends into the energy storage chamber 111, and the other end is used to communicate with the oil and gas spring 5, and the damping adjustment component 4 is provided with a connecting chamber 4311, and the connecting chamber 4311 is connected or disconnected with the energy storage chamber 111 through the opening and closing of the damping valve body 41 or the one-way valve body 42.

[0043] For illustration purposes, see Figure 3 , take any point in space as the origin, take the setting direction of the fastener 44 in the damping adjustment assembly 4 relative to the valve seat 45 as the Y-axis, take any direction parallel to the damping valve body 41 as the Z-axis, take the straight line direction perpendicular to both the Y-axis and the Z-axis as the X-axis, and establish a rectangular coordinate system, wherein the XY plane is a horizontal plane, the direction indicated on the horizontal plane is the horizontal direction, the direction indicated by the Z-axis is the vertical direction, the direction indicated by the positive direction of the Y-axis is the left, and the negative direction is the right.

[0044] In this embodiment, the piston 2 can move freely in the energy storage chamber 111, and the piston 2 divides the energy storage chamber 111 into two independent chambers, the left chamber and the right chamber. The inflatable joint 3 can inflate the energy storage chamber 111 on one side of the piston 2, i.e., the left chamber. The damping valve body 41 can be a pressure regulating valve, and different damping sizes can be set as needed; the one-way valve body 42 can be a one-way valve, and the pressure regulating valve and the one-way valve are both arranged between the connecting chamber 4311 and the energy storage chamber 111. By changing the number of valve plates of the pressure regulating valve, the damping force required for the connection between the connecting chamber 4311 and the energy storage chamber 111 can be controlled. When the pressure of the left chamber and the right chamber is unbalanced, the piston 2 will move from the end with higher pressure to the end with lower pressure until the pressure of the two chambers is consistent, thereby automatically adjusting the pressure in the energy storage chamber 111. The damping adjustment component 4 is threadedly connected to the energy storage body 1, and assembly and disassembly are very convenient and fast.

[0045] Compared with the prior art, this accumulator with one-way adjustable damping is used in the oil-gas suspension damping system. It uses 99.9% high-purity nitrogen as the elastic medium and hydraulic oil as the transmission medium, and has good buffering and vibration reduction effects. This accumulator with one-way adjustable damping has a damping function through the setting of the damping adjustment component 4, simplifies the structure of the oil-gas spring 5, and installs the damping adjustment component 4 in the energy storage body 1 for easy disassembly and assembly, easy maintenance, and a more compact structure with low cost; through the adaptive setting of the damping valve body 41 and the one-way valve body 42 in the damping adjustment component 4, the damping size of the damping adjustment component 4 can be adjusted according to the customer's personality and road conditions, etc., effectively improving the personalized needs of vehicle driving.

[0046] As another embodiment of the present utility model, the structure of the accumulator with one-way adjustable damping is basically the same as the structure in the above-mentioned embodiment, except that the damping adjustment component 4 also includes a valve body 43, a fastener 44, and a valve seat 45, wherein the valve body 43 is connected to the energy storage body 1 and one end is connected to the oil and gas spring 5 through a pipeline, and the connecting chamber 4311 is arranged on the valve body 43; the fastener 44 is arranged in the energy storage chamber 111 and at the other end of the valve body 43; the valve seat 45 is connected to the valve body 43, the valve body 43 passes through the valve seat 45 and is connected to the fastener 44, the damping valve body 41 is arranged on one side of the valve seat 45, and the one-way valve body 42 is arranged on the other side of the valve seat 45.

[0047] In this embodiment, a plurality of one-way valve oil holes 452 and a plurality of pressure regulating valve oil holes 451 are arranged circumferentially on the valve seat 45, and the plurality of one-way valve oil holes 452 and the plurality of pressure regulating valve oil holes 451 are arranged alternately, and the one-way valve oil holes 452 and the pressure regulating valve oil holes 451 are through holes that penetrate the valve seat 45; the fastener 44 is a nut, and the fastener 44 is threadedly connected to the valve body 43. A plurality of damping valve bodies 41 are arranged side by side, and the function of adjusting the damping size according to the customer's personality and road conditions is achieved through the adaptive setting of the number of damping valve bodies 41, and the disassembly and assembly are convenient, which can effectively improve the personalized needs of vehicle driving; the one-way valve body 42 is provided with a communication port that is simultaneously connected to the connecting cavity 4311 and the pressure regulating valve oil hole 451.

[0048] As another embodiment of the utility model, the structure of the accumulator with one-way adjustable damping is basically the same as the structure in the above-mentioned embodiment, except that the energy storage body 1 includes a cylinder body 11, an end cover 12, and a bracket 13, wherein the cylinder body 11 is slidably connected to the piston 2, and one end of the cylinder body 11 is provided with a fixing hole connected to the inflation joint 3; the end cover 12 is threadedly connected to the other end of the cylinder body 11 and is threadedly connected to the valve body 43 in the damping adjustment assembly 4, and the threaded connection method can both fix the structure and facilitate assembly and disassembly, and an energy storage chamber 111 is formed between the end cover 12 and the cylinder body 11; the bracket 13 is connected to the cylinder body 11, and is provided with a plurality of brackets 13, and mounting holes are provided on the plurality of brackets 13, and the mounting holes are convenient for installation and fixation with external equipment such as vehicles, and the bracket 13 can be a metal sheet with a "J"-shaped structure.

[0049] In this embodiment, a plurality of sealing gaskets are provided between the end cover 12 and the cylinder body 11, and the damping adjustment assembly 4 is arranged through the end cover 12 and is sealedly connected to the end cover 12, so that a closed inner cavity is formed inside the cylinder body 11, that is, the energy storage chamber 111 is a closed cavity.

[0050] As another embodiment of the utility model, the structure of the accumulator with one-way adjustable damping is basically the same as that in the above embodiment, except that the damping valve body 41 is arranged between the valve seat 45 and the fastener 44, and the one-way valve body 42 is arranged on the side of the valve seat 45 away from the damping valve body 41. The line between the center of any one-way valve oil hole 452 and the center of the valve seat 45 is the first reference line, and the line between the center of any pressure regulating valve oil hole 451 and the center of the valve seat 45 is the second reference line, and the length of the first reference line is greater than the length of the second reference line.

[0051] In this embodiment, a first elastic body 47 is provided between the one-way valve body 42 and the valve body 43; a second elastic body 46 is provided between the damping valve body 41 and the valve seat 45 and the fastener 44. The one-way valve body 42 is a one-way valve disc, the first elastic body 47 is a spring gasket, the damping valve body 41 is a stainless steel damping valve disc, and the second elastic body 46 can be a rubber gasket. Here, as long as the related performance functions of the one-way valve body 42 and the damping valve body 41 can be achieved, they are within the scope of protection of this application document.

[0052] Specifically, the one-way valve disc is pressed on the right end face of the valve body 43, and the stainless steel damping valve disc is pressed on the left end face of the valve body 43, thereby forming the functions of a one-way valve and a pressure regulating valve. The damping effect of the accumulator is that when the oil flows to the accumulator oil chamber, i.e., the right chamber, the oil generates a damping force by overcoming the elastic deformation of the stainless steel damping valve disc. By removing the nut, the number and thickness of the stainless steel damping valve disc are increased or decreased, thereby changing the magnitude of the damping force. When the oil in the accumulator oil chamber flows out, the oil passes through the one-way valve oil hole 452 on the valve seat 45, overcomes the elastic force of the spring gasket, and allows the oil to circulate, thereby achieving the function of the one-way valve to circulate in the forward direction.

[0053] As another embodiment of the present utility model, the structure of the accumulator with one-way adjustable damping is basically the same as the structure in the above embodiment, except that the valve body 43 includes a connecting portion 431, a communicating portion 432, and a mounting column 433, wherein the connecting portion 431 is threadedly connected to the end cover 12 and is engaged with the first elastic body 47, a connecting cavity 4311 is provided on the connecting portion 431, and a liquid cavity 4312 is formed between the connecting portion 431, the valve seat 45 and the end cover 12, and the liquid cavity 4312 is also The one-way valve body 42 is connected to the connecting chamber 4311, the one-way valve oil hole 452 and the pressure regulating valve oil hole 451, and is arranged in the liquid passage chamber 4312; one end of the connecting portion 432 is integrally formed with one end of the connecting portion 431 and is connected to the connecting portion 431, and the other end is connected to the oil-gas spring 5; the mounting column 433 is integrally formed with the other end of the connecting portion 431, and the mounting column 433 sequentially passes through the first elastomer 47, the one-way valve body 42, the valve seat 45, the damping valve body 41 and the second elastomer 46 and is connected to the fastener 44.

[0054] In this embodiment, the connection part 431 is provided with a limit platform 434 engaged with the end cover 12, and the limit platform 434 is used to limit the installation position of the valve body 43. The connection part 431 is provided with a sealing groove, which is arranged on a side of the limit platform 434 close to the valve seat 45; a first sealing member is arranged in the sealing groove, and the first sealing member is connected to the connection part 431 and the end cover 12 at the same time.

[0055] As another embodiment of the utility model, the structure of the accumulator with one-way adjustable damping is basically the same as that in the above embodiment, except that the connecting chamber 4311 includes a first cavity and a second cavity, the first cavity is connected to the connecting portion 432, the second cavity is connected to the first cavity and the liquid passage cavity 4312 at the same time, and the second cavity is arranged at one end of the connecting portion 431 away from the connecting portion 432, and a plurality of second cavities are evenly arranged along the circumference of the connecting portion 432. The connecting portion 432 is provided with a threaded port for threaded connection with a pipeline.

[0056] In this embodiment, a plurality of bosses matching the one-way valve oil hole 452 are provided on the side of the valve seat 45 close to the one-way valve body 42. The one-way valve body 42 abuts against the bosses, and a certain gap is left between two adjacent bosses. The oil can enter the pressure regulating valve oil hole 451 through the gap between the bosses.

[0057] The working process of the accumulator with one-way adjustable damping is as follows: the device is used in conjunction with the oil-gas spring 5, and is connected to the oil in the inner cavity of the oil-gas spring 5 through a pipeline connected by a threaded port; the stop valve 6 is opened (the stop valve 6 is often used for system maintenance), and nitrogen of a certain pressure is filled into the left cavity through the charging joint 3; according to system needs, the solenoid valve 7 is used to control the height adjustment circuit or other external hydraulic sources to pressurize the inner cavity of the oil-gas spring 5. When the pressure is greater than the preset pressure, the oil in the oil-gas spring 5 enters the right cavity, the piston 2 moves to the left, and the oil-gas spring 5 undergoes associated movement at the same time; the oil between the oil-gas spring 5 and the device realizes forward and reverse flow through the one-way valve body 42 and the damping valve body 41 on the damping adjustment component 4. The number and thickness of different damping valve bodies 41 affect the pressure of the oil, thereby producing different damping effects. It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced. The contents not described in detail in the embodiments of the utility model belong to the prior art known to professional and technical personnel in this field.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An accumulator with one-way adjustable damping, characterized in that: include: An energy storage body (1) is provided with an energy storage chamber (111); A piston (2) is slidably connected to the energy storage body (1) and is disposed in the energy storage chamber (111); An air charging connector (3) which is detachably connected to the energy storage body (1) and is arranged on one side of the energy storage body (1); A damping adjustment component (4) has one end that penetrates the energy storage body (1) and extends into the energy storage chamber (111), and the other end is used to communicate with the oil and gas spring (5). The damping adjustment component (4) is provided with a connecting chamber (4311), and the connecting chamber (4311) is connected to or disconnected from the energy storage chamber (111) by opening and closing the damping valve body (41) or the one-way valve body (42).

2. The accumulator with one-way adjustable damping according to claim 1, characterized in that: The damping adjustment component (4) further comprises: A valve body (43) connected to the energy storage body (1) and having one end connected to the oil and gas spring (5) via a pipeline, wherein the connecting chamber (4311) is arranged on the valve body (43); A fastener (44) is disposed in the energy storage chamber (111) and at the other end of the valve body (43); The valve seat (45) is connected to the valve body (43), the valve body (43) passes through the valve seat (45) and is connected to the fastener (44), the damping valve body (41) is arranged on one side of the valve seat (45), and the one-way valve body (42) is arranged on the other side of the valve seat (45).

3. The accumulator with one-way adjustable damping according to claim 2, characterized in that: The energy storage body (1) comprises: A cylinder body (11) is slidably connected to the piston (2), and one end of the cylinder body (11) is provided with a fixing hole connected to the inflation joint (3); an end cover (12) connected to the other end of the cylinder body (11) and to the damping adjustment assembly (4), wherein the energy storage chamber (111) is formed between the end cover (12) and the cylinder body (11); A plurality of brackets (13) are connected to the cylinder body (11).

4. The accumulator with one-way adjustable damping according to claim 3, characterized in that: A plurality of one-way valve oil holes (452) and a plurality of pressure regulating valve oil holes (451) are circumferentially arranged on the valve seat (45), and the plurality of one-way valve oil holes (452) and the plurality of pressure regulating valve oil holes (451) are arranged alternately.

5. The accumulator with one-way adjustable damping according to claim 4, characterized in that: The damping valve body (41) is arranged between the valve seat (45) and the fastener (44), and the one-way valve body (42) is arranged on a side of the valve seat (45) away from the damping valve body (41).

6. The accumulator with one-way adjustable damping according to claim 5, characterized in that: A first elastic body (47) is provided between the one-way valve body (42) and the valve body (43); and a second elastic body (46) is provided between the damping valve body (41), the valve seat (45) and the fastener (44).

7. An accumulator with one-way adjustable damping according to claim 6, characterized in that: The valve body (43) comprises: A connecting portion (431) is connected to the end cover (12) and is engaged with the first elastic body (47); the connecting cavity (4311) is arranged on the connecting portion (431); and a liquid passage cavity (4312) is formed between the connecting portion (431), the valve seat (45) and the end cover (12); A communicating portion (432), one end of which is integrally formed with one end of the connecting portion (431) and is in communication with the connecting portion (431), and the other end of which is in communication with the oil-gas spring (5); The mounting column (433) is integrally formed with the other end of the connecting portion (431), and sequentially passes through the first elastic body (47), the one-way valve body (42), the valve seat (45), the damping valve body (41) and the second elastic body (46), and is connected to the fastener (44).

8. An accumulator with one-way adjustable damping according to claim 7, characterized in that: The connection portion (431) is provided with a limiting platform (434) engaged with the end cover (12), and the limiting platform (434) is used to limit the installation position of the valve body (43).

9. An accumulator with one-way adjustable damping according to claim 8, characterized in that: The connecting portion (431) is provided with a sealing groove, and the sealing groove is arranged on a side of the limiting platform (434) close to the valve seat (45); a first sealing member is provided in the sealing groove, and the first sealing member is connected to the connecting portion (431) and the end cover (12) at the same time.

10. An accumulator with one-way adjustable damping according to any one of claims 4 to 9, characterized in that: A plurality of the damping valve bodies (41) are arranged side by side; and a communication port is provided on the one-way valve body (42) which is connected to both the connecting cavity (4311) and the pressure regulating valve oil hole (451).

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