A non-gas charged valve accumulator assembly and method of use thereof

Abstract

The application belongs to the technical field of accumulator and is an air valve-free accumulator assembling device. A support assembly (6) is connected to the upper end of the base (3) outside, a screw rod (8) is installed on the support assembly (6), an L-shaped hole (11) is arranged at the upper position of the base (3) and is communicated with the inside and outside of the base (3), an exhaust hole (12) is arranged at the position close to the middle of the base (3) and is communicated with the inside and outside of the base (3), the outer side of a guide sleeve (7) is connected to the upper part of the base (3), a piston assembly (5) is located in the guide sleeve (7), a retainer ring base assembly (2) is installed in the inside of the base (3), and a retainer ring (4) is arranged above the retainer ring base assembly (2). The air valve-free accumulator assembling device can conveniently and quickly complete the nitrogen filling and the assembly of the accumulator, improve the assembly effect, simplify the operation process, reduce the cost, and effectively avoid safety accidents.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of accumulators, and more particularly relates to an assembly device for a non-charging-valve accumulator. BACKGROUND

[0002] An accumulator is an energy storage element in a hydraulic circuit system, and a non-charging-valve accumulator is applied to an automobile gearbox assembly. The non-charging-valve piston accumulator has a wide range of applications. The non-charging-valve piston accumulator has the functions of storing energy, absorbing hydraulic impact, eliminating pulsation, and recovering energy. When the system pressure is too low, the accumulator can release energy to supply the system; when the system pressure is too high, the accumulator can also absorb energy to ensure normal system pressure, so the non-charging-valve piston accumulator is widely used in automobile power assembly parts. In the assembly process of the non-charging-valve accumulator, it needs to be assembled according to the steps to meet the functional requirements of the accumulator. Since nitrogen charging and smooth assembly of the accumulator are required during assembly, the existing accumulator nitrogen charging device cannot be used for assembly of the non-charging-valve accumulator, resulting in a complex or unreliable assembly process, easy occurrence of safety accidents, and difficulty in ensuring safe and smooth assembly.

[0003] In the prior art, a technology with the title of "an accumulator and its assembly process" and the publication number "110594206A" is provided, which includes an outer cylinder (1), the two ends of the outer cylinder (1) are respectively inserted with a valve body assembly (2) and an electromagnet assembly (3), a piston assembly (4) is slidably arranged in the outer cylinder (1), an accumulator spring (5) is located between the piston assembly (4) and the electromagnet assembly (3), the electromagnet assembly (3) includes a push rod part, the head outer wall of the push rod part is provided with a conical groove (3.8) of annular structure, the push rod part is fixedly sleeved in a guide sleeve (3.10), a plurality of through holes (3.10.1) are provided on the guide sleeve (3.10), and a ball (3.16) is embedded in the through hole (3.10.1) and located in the conical groove (3.8).

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. SUMMARY

[0005] The technical problem to be solved by the present application is that the existing non-charging-valve piston accumulator assembly process is complex or unreliable, easy to cause safety accidents, and difficult to ensure safe and smooth assembly. The present application provides a non-charging-valve accumulator assembly device with simple structure, which can conveniently and quickly complete nitrogen charging and accumulator assembly, improve assembly effect, improve product reliability, simplify operation process, reduce cost, and effectively avoid safety accidents.

[0006] To solve the above technical problems, the technical solution adopted by the present application is that:

[0007] The application is a kind of non-inflatable valve accumulator assembly device, including base, the upper end of the outer part of the base is connected with support assembly, bolts are installed on the support assembly and extend into the inside of the support assembly, L-shaped hole is arranged on the upper part of the base, the L-shaped hole is connected with the inside and outside of the base, exhaust hole is arranged on the base near the middle part, the exhaust hole is connected with the inside and outside of the base, the outer side of the guide sleeve is connected with the upper part of the base, the piston assembly is located in the guide sleeve, the retainer ring base assembly is installed in the inside of the base, the retainer ring is arranged above the retainer ring base assembly, the top rod is connected with the retainer ring base assembly, and the top rod is connected with the driving cylinder.

[0008] The base is installed on the nitrogen filling equipment, and the driving cylinder is installed on the nitrogen filling equipment.

[0009] The retainer ring base assembly includes a retainer ring base, an outer step part of the retainer ring base is matched with an inner step part of an inner hole of a retainer ring base sleeve, and a groove on the outside of the retainer ring base sleeve is sleeved with a sealing ring II.

[0010] The piston assembly includes a piston, a middle groove of an outer ring of the piston is sleeved with an anti-extrusion retainer ring and a sealing ring II, an upper groove of the outer ring of the piston is sleeved with a guide ring, and a lower groove of the outer ring of the piston is sleeved with a guide ring.

[0011] The support assembly includes a support body, a lower support is installed on the lower part of the support body, an upper support is installed on the upper part of the support body, and bolts are screwed in screw holes of the upper support. The lower support is connected with the support body through the bolts. The upper support is connected with the support body through the bolts.

[0012] An introduction angle is arranged on the upper part of the guide sleeve.

[0013] When the support assembly is connected with the upper end of the outside of the base, the structure that the bolts on the support assembly are screwed is capable of pushing the piston assembly to move into the inside of the base through the guide sleeve. When the piston assembly moves into the inside of the base, the structure that the piston assembly is arranged below the L-shaped hole.

[0014] The sealing ring III is sleeved in the tank body of the non-inflatable valve accumulator. When the tank body is screwed on the upper part of the base, the structure that the tank body is capable of forming a sealed space with the base and the piston assembly. The structure that the nitrogen filling equipment is capable of filling nitrogen into the tank body through the L-shaped hole.

[0015] After the nitrogen filling equipment completes the filling of nitrogen into the tank body of the non-inflatable valve accumulator, the structure that the control component is capable of controlling the driving cylinder to extend, so as to push the top rod to move upwards and push the piston assembly to move into the inside of the tank body. When the piston assembly moves into the inside of the tank body, the structure that the retainer ring is capable of being clamped in the inner groove near the opening position of the inside of the tank body.

[0016] The application also relates to a use method of the non-charging valve accumulator assembly device.

[0017] S1. connecting the support assembly on the outer upper end of the base, screwing the screw rod on the support assembly, pushing the piston assembly through the guide sleeve to move into the base until the piston assembly moves to a position below the L-shaped hole; during the movement of the piston assembly into the base, the closed space is exhausted through the exhaust hole on the base until the piston assembly contacts the check ring base assembly;

[0018] S2. the seal ring III is sleeved in the tank body, and the tank body is screwed on the upper part of the base to form a closed space with the base and the piston assembly;

[0019] S3. starting the nitrogen charging equipment, and the nitrogen charging equipment charges nitrogen into the closed space formed by the tank body, the base and the piston assembly through the L-shaped hole, and the nitrogen enters the tank body until the pressure of the charged nitrogen reaches the set pressure;

[0020] S4. after the tank body is completely filled with nitrogen, the control component controls the driving cylinder to extend and push the ejector rod to move upward until the piston assembly is pushed to move into the tank body, and the check ring is clamped in the inner groove in the tank body.

[0021] The technical scheme of the application has the following working principle and beneficial effects:

[0022] The non-charging valve accumulator assembly device and the use method thereof can reliably realize the assembly of related components and force application, effectively replace manual labor, reduce the labor intensity of manual labor in the assembly process, and improve the assembly efficiency. The structure enables the check ring to be located in the base before assembly and arranged on the check ring base assembly, and the piston can reliably enter the base without damage through the guide sleeve. The L-shaped hole can be used to supply and adjust the nitrogen charging pressure during nitrogen charging, and the preset nitrogen charging pressure can be calculated by calculating the nitrogen charging volume. When the screw rod 8 pushes the piston assembly until the piston assembly is pushed into the base and contacts the check ring base assembly, the support assembly, the bolt and the guide sleeve are removed, the tank body is screwed into the base, the tank body can have a sealing effect when being screwed into the base, and then nitrogen is charged according to the preset pre-charging pressure. When the nitrogen charging is completed, the pressure outside the piston is released through the exhaust hole, so that the non-charging valve accumulator can be safely screwed and separated from the tank body, and reliable assembly of the non-charging valve accumulator is realized. BRIEF DESCRIPTION OF DRAWINGS

[0023] The content expressed by each drawing of the present specification and the marks in the drawings are briefly described as follows:

[0024] Figure 1 The structure diagram of the non-charging valve accumulator assembly device is shown in the present application.

[0025] Figure 2 Structure diagram of piston assembly of the non-gas-charged valve accumulator assembly device according to the present application;

[0026] Figure 3 Structure diagram of retainer seat assembly of the non-gas-charged valve accumulator assembly device according to the present application;

[0027] Figure 4 Structure diagram of the retainer arrangement of the non-gas-charged valve accumulator assembly device according to the present application;

[0028] Figure 5 Structure diagram of bracket assembly of the non-gas-charged valve accumulator assembly device according to the present application;

[0029] Figure 6 Structure diagram of guide sleeve of the non-gas-charged valve accumulator assembly device according to the present application;

[0030] Figure 7 Structure diagram of the non-gas-charged valve accumulator assembly device according to the present application during assembly;

[0031] Figure 8 Structure diagram of the non-gas-charged valve accumulator assembly device according to the present application during assembly of piston assembly and tank body;

[0032] In the drawings, the reference signs are as follows: 1, ejector rod; 2, retainer seat assembly; 2-1, retainer seat; 2-2, retainer seat sleeve; 2-3, sealing ring I; 2-4, outer step portion; 2-5, inner step portion; 2-6, groove; 3, base; 4, retainer; 5, piston assembly; 5-1, piston; 5-2, guide ring; 5-3, anti-extrusion retainer; 5-4, sealing ring II; 6, bracket assembly; 6-1, lower bracket; 6-2, bolt; 6-3, bracket body; 6-4, upper bracket; 6-5, screw hole; 7, guide sleeve; 7-1, upper mouth portion; 7-2, introduction angle; 8, screw rod; 9, sealing ring III; 10, tank body; 11, L-shaped hole; 12, exhaust hole; 13, driving cylinder; 14, nitrogen filling equipment. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application and the shapes, structures, mutual positions and connection relationships between the parts, functions and working principles of the parts involved will be further described in detail below with reference to the drawings and the description of the embodiments:

[0034] As shown in the drawings Figure 1 - the drawings Figure 8As shown, this invention is an accumulator assembly device without a charging valve, including a base 3, a bracket assembly 6 connected to the upper outer part of the base 3, bolts 8 installed on the bracket assembly 6 and extending into the bracket assembly 6, an L-shaped hole 11 provided at the upper part of the base 3, the L-shaped hole 11 connecting the inside and outside of the base 3, an exhaust hole 12 provided near the middle of the base 3, the exhaust hole 12 connecting the inside and outside of the base 3, a guide sleeve 7 connected to the upper part of the base 3 on the outside, a piston assembly 5 located inside the guide sleeve 7, a retaining ring base assembly 2 installed inside the base 3, a retaining ring 4 arranged above the retaining ring base assembly 2, a push rod 1 connected to the retaining ring base assembly 2, and a drive cylinder 13 connected to the push rod 13. The base 3 is installed on a nitrogen filling device 14, the drive cylinder 13 is installed on the nitrogen filling device 14, and the drive cylinder 13 is connected to a control component. The above structure addresses the shortcomings of the prior art and proposes an improved technical solution. It is mainly used to complete the nitrogen filling and assembly of accumulators without a filling valve. Specifically, the tank is filled with nitrogen, then a piston is installed inside the tank, and then a retaining ring 4 is installed to limit the piston assembly 5. After the nitrogen filling and assembly are completed, nitrogen gas is injected into the tank, and the piston assembly and sealing ring Ⅲ9 cooperate to achieve a reliable seal. During assembly, a bracket assembly 6 is connected to the upper part of the base 3. The screw 8 on the bracket assembly 6 is turned, and the screw 8 pushes the piston assembly 5 through the guide sleeve 7 to move into the base 3 until the piston assembly 5 moves to the position below the L-shaped hole 11. A sealing ring Ⅲ9 is installed inside the tank 10. The tank 10 is screwed onto the upper part of the base 3, and the tank 10, the base 3, and the piston assembly 5 form a sealed space. The nitrogen filling device 14 is started. The nitrogen filling device 14 fills the sealed space formed by the tank 10, the base 3, and the piston assembly 5 through the L-shaped hole 11. Nitrogen gas enters the tank 10 until the pressure of the filled nitrogen gas reaches the set pressure. After the tank 10 is filled with nitrogen, the control component controls the drive cylinder 13 to extend and push the push rod 1 to move upward until it pushes the piston assembly 5 into the tank 10, and the retaining ring 4 is locked in the inner groove inside the tank 10. In this way, during the assembly of the accumulator without a charging valve, the tooling reliably assembles the relevant components and applies force, effectively replacing manual labor, reducing the labor intensity of the assembly process, and improving assembly efficiency. The above structure allows the retaining ring 4 to be located inside the base 3 before assembly and set on the retaining ring base assembly 2. The piston assembly 5 can reliably and without damage enter the base 3 through the guide sleeve 7. During the movement of the piston assembly 5 into the base 3, a sealed space is formed, and exhaust is achieved through the vent hole 12 on the base 3 until the piston assembly 5 contacts the retaining ring base assembly 2. During nitrogen charging, the nitrogen charging pressure can be supplied and adjusted through the L-shaped hole 11. The preset nitrogen charging pressure can be calculated by calculating the nitrogen charging volume, and nitrogen charging stops when the preset nitrogen charging pressure is reached.When the screw 8's helical motion pushes the piston assembly 5 until it contacts the retaining ring base assembly 2 inside the base 3, the bracket assembly 6, bolts, and guide sleeve 7 are removed. The tank 10 is then screwed into the base 3, providing a seal when screwed in. Nitrogen is then charged according to the pre-charge nitrogen pressure. Upon completion of nitrogen charging, the external pressure of the piston is released through the vent hole, allowing the valveless accumulator to be safely detached from the tank, thus achieving reliable assembly of the valveless accumulator. The valveless accumulator assembly device of this invention has a simple structure, enabling convenient and quick completion of nitrogen charging and accumulator assembly, improving assembly efficiency, enhancing product reliability, simplifying operation, reducing costs, and effectively preventing safety accidents.

[0035] The retaining ring base assembly 2 includes a retaining ring base 2-1. The outer stepped portion 2-4 of the retaining ring base 2-1 mates with the inner stepped portion 2-5 of the inner hole of the retaining ring base sleeve 2-2. A sealing ring I 2-3 is fitted into the groove 2-6 on the outside of the retaining ring base sleeve 2-2. In this structure, the retaining ring is placed on the retaining ring base sleeve 2-2 and simultaneously fitted onto the upper part of the retaining ring base 2-1. The upper part of the retaining ring base 2-1 protrudes from the retaining ring base sleeve 2-2. Thus, when the retaining ring base assembly 2 moves upward, the retaining ring moves synchronously until it moves into the tank body 10 and engages with the inner groove. The retaining ring limits the piston assembly that moves into the tank body, and the piston assembly seals the nitrogen gas inside the tank.

[0036] The piston assembly 5 includes a piston 5-1, with an anti-squeezing ring 5-3 and a sealing ring II 5-4 fitted into the central groove of the outer ring of piston 5-1, a guide ring 5-2 fitted into the upper groove of the outer ring of piston 5-1, and a guide ring 5-2 fitted into the lower groove of the outer ring of piston 5-1. In this structure, the sealing ring II 5-4 provides a seal after the piston assembly is installed in the tank, preventing leakage and ensuring reliable sealing of nitrogen within the tank. The guide ring 5-2 reliably guides the movement of the piston.

[0037] The support assembly 6 includes a support body 6-3. A lower support 6-1 is installed at the lower part of the support body 6-3, and an upper support 6-4 is installed at the upper part of the support body 6-3. Bolts 8 are screwed into the screw holes 6-5 of the upper support 6-4. The lower support 6-1 is connected to the support body 6-3 by bolts 6-2. The upper support 6-4 is connected to the support body 6-3 by bolts 6-2. In the above structure, the upper support, lower support, and support body are connected by corresponding bolts 6-2. A screw is also screwed onto the upper support 6-4. When the screw is screwed in, it pushes a piston assembly into the base. After the piston assembly enters, the support assembly is disassembled, and the tank is screwed onto the base.

[0038] The guide sleeve 7 has an entry angle 7-2 at its upper opening 7-1. In this structure, when the piston assembly is installed via the guide sleeve, the entry angle 7-2 guides the piston assembly's entry.

[0039] In the assembly device of the present invention, when the upper part of the base 3 is connected to the bracket assembly 6, the screw 8 on the bracket assembly 6 is configured to push the piston assembly 5 into the base 3 through the guide sleeve 7 when it is turned. When the piston assembly 5 moves into the base 3, it is configured to be located below the L-shaped hole 11. The tank 10 of the accumulator without a gas filling valve is fitted with a sealing ring Ⅲ9. When the tank 10 is screwed onto the upper part of the base 3, it is configured to form a sealed space with the base 3 and the piston assembly 5. The nitrogen filling device 14 is configured to fill the tank 10 with nitrogen through the L-shaped hole 11.

[0040] In the valveless accumulator assembly device of the present invention, after the nitrogen filling equipment 14 completes the nitrogen filling of the tank 10 of the valveless accumulator, the control component is configured to control the extension of the drive cylinder 13, thereby pushing the push rod 1 to move upward and pushing the piston assembly 5 to move into the tank 10; when the piston assembly 5 moves into the tank 10, the retaining ring 4 is configured to be able to be locked in the inner groove position near the opening position inside the tank 10.

[0041] The accumulator assembly device without an inflation valve described in this invention uses a nitrogen filling device to fill a sealed space with nitrogen through an L-shaped hole on the connecting base. Because part or all of the L-shaped hole is located below the contact surface between the tank 10 and the base 3, the L-shaped hole will not be unable to fill or will fill slowly due to contact between the tank 10 and the base 3. When a certain pressure value is reached, the push rod 1 pushes the retaining ring base assembly 2 upwards, causing the piston assembly 5 to move upwards. Figure 8 As shown, when the retaining ring 4 is inserted into the inner groove of the tank body 10, the pressure is released through the vent holes on both sides to ensure that the accumulator can be safely unscrewed, thus achieving safe and reliable assembly of the accumulator.

[0042] This invention also relates to a method of using a valveless accumulator assembly device. The steps of using the valveless accumulator assembly device are as follows: S1. Connect a bracket assembly 6 to the upper part of the base 3. Tighten the screw 8 on the bracket assembly 6. The screw 8 pushes the piston assembly 5 through the guide sleeve 7 and moves it into the base 3 until the piston assembly 5 moves to a position below the L-shaped hole 11. During the process of the piston assembly 5 moving into the base 3, a sealed space is formed, and exhaust is achieved through the exhaust hole 12 on the base 3 until the piston assembly 5 contacts the retaining ring base assembly 2; S2. The tank 10 is fitted with a S10 is screwed onto the upper part of the base 3 with sealing ring Ⅲ9, forming a sealed space with the base 3 and piston assembly 5; S3. Nitrogen filling equipment 14 is started, and nitrogen filling equipment 14 fills nitrogen into the sealed space formed by the base 3 and piston assembly 5 through L-shaped hole 11. Nitrogen enters the tank 10 until the pressure of the filled nitrogen reaches the set pressure; S4. After the tank 10 is filled with nitrogen, the control component controls the drive cylinder 13 to extend and push the push rod 1 to move upward until it pushes the piston assembly 5 to move into the tank 10, and the retaining ring 4 is locked in the inner groove inside the tank 10.

[0043] The accumulator assembly device without a charging valve described in this invention involves unscrewing the bracket assembly and removing the guide sleeve, then screwing the tank with sealing ring III into the base. The nitrogen charging device pressurizes the sealed space with nitrogen through the L-shaped hole until the preset nitrogen charging pressure is reached. The driving cylinder of the nitrogen charging device pushes the push rod to drive the retaining ring base assembly and push the piston assembly to move upward. When the retaining ring is inserted into the inner groove of the tank, the L-shaped hole releases pressure. After the monitored pressure value is 0, the accumulator can be unscrewed.

[0044] The valveless accumulator assembly device and its usage method described in this invention reliably assemble related components and apply force, effectively replacing manual labor, reducing labor intensity during assembly, and improving assembly efficiency. The aforementioned structure allows the retaining ring to be located inside the base before assembly and positioned on the retaining ring base assembly, enabling the piston to reliably and without damage into the base via the guide sleeve. During nitrogen filling, the nitrogen pressure can be supplied and adjusted through the L-shaped orifice, and the preset nitrogen filling pressure can be calculated by calculating the nitrogen filling volume. When the helical motion of the screw 8 pushes the piston assembly until it contacts the retaining ring base assembly inside the base, the bracket assembly, bolts, and guide sleeve are removed, and the tank is screwed into the base. The tank provides a sealing effect when screwed into the base, and then nitrogen is filled according to the set pre-filling nitrogen pressure. Upon completion of nitrogen filling, the pressure outside the piston is released through the vent hole, allowing the valveless accumulator to be safely screwed away from the tank, achieving reliable assembly of the valveless accumulator.

[0045] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. An accumulator assembly device without an air filling valve, characterized in that: Includes a base (3), with a bracket assembly (6) connected to the upper part of the base (3), a screw (8) installed on the bracket assembly (6) and extending into the bracket assembly (6), an L-shaped hole (11) provided at the upper part of the base (3), the L-shaped hole (11) connecting the inside and outside of the base (3), an exhaust hole (12) provided near the middle of the base (3), the exhaust hole (12) connecting the inside and outside of the base (3), the outer side of the guide sleeve (7) connected to the upper part of the base (3), a piston assembly (5) located inside the guide sleeve (7), a retaining ring base assembly (2) installed inside the base (3), a retaining ring (4) arranged above the retaining ring base assembly (2), a push rod (1) connected to the retaining ring base assembly (2), and a push rod (1) connected to the drive cylinder (13); The retaining ring base assembly (2) includes a retaining ring base (2-1), the outer stepped portion (2-4) of the retaining ring base (2-1) is engaged with the inner stepped portion (2-5) of the inner hole of the retaining ring base sleeve (2-2), and the sealing ring I (2-3) is fitted into the groove (2-6) on the outside of the retaining ring base sleeve (2-2). The piston assembly (5) includes a piston (5-1), an anti-squeezing retaining ring (5-3) and a sealing ring II (5-4) fitted in the middle groove of the outer ring of the piston (5-1), a guide ring (5-2) fitted in the upper groove of the outer ring of the piston (5-1), and a guide ring (5-2) fitted in the lower groove of the outer ring of the piston (5-1). The bracket assembly (6) includes a bracket body (6-3), a lower bracket (6-1) is installed at the lower part of the bracket body (6-3), an upper bracket (6-4) is installed at the upper part of the bracket body (6-3), and a screw (8) is screwed into the screw hole (6-5) of the upper bracket (6-4). When the upper part of the base (3) is connected to the bracket assembly (6), the screw (8) on the bracket assembly (6) is turned to push the piston assembly (5) to move into the base (3) through the guide sleeve (7). When the piston assembly (5) moves into the base (3), the piston assembly (5) is set to be located below the L-shaped hole (11). The tank (10) of the accumulator without a gas filling valve is fitted with a sealing ring Ⅲ (9). When the tank (10) is screwed onto the upper part of the base (3), the tank (10) is configured to form a closed space with the base (3) and the piston assembly (5). The nitrogen filling device (14) is configured to fill the tank (10) with nitrogen through the L-shaped hole (11).

2. The accumulator assembly device without an inflation valve according to claim 1, characterized in that: The base (3) is mounted on the nitrogen filling device (14), and the drive cylinder (13) is mounted on the nitrogen filling device (14). The drive cylinder (13) is connected to the control component.

3. The accumulator assembly device without an inflation valve according to claim 1 or 2, characterized in that: The guide sleeve (7) has an introduction angle (7-2) at the upper opening (7-1) position.

4. The accumulator assembly device without an inflation valve according to claim 1 or 2, characterized in that: After the nitrogen filling equipment (14) completes the nitrogen filling of the tank (10) without the gas filling valve, the control component is configured to control the extension of the drive cylinder (13), thereby pushing the push rod (1) to move upward and pushing the piston assembly (5) to move into the tank (10); when the piston assembly (5) moves into the tank (10), the retaining ring (4) is configured to be able to be locked in the inner groove position near the opening position inside the tank (10).

5. The method of using the valveless accumulator assembly device according to any one of claims 1 to 4, characterized in that: The steps for using the aforementioned valveless accumulator assembly device are as follows: S1. Connect the bracket assembly (6) to the upper part of the base (3), and turn the screw (8) on the bracket assembly (6). The screw (8) pushes the piston assembly (5) through the guide sleeve (7) and moves it into the base (3) until the piston assembly (5) moves to the position below the L-shaped hole (11). During the process of the piston assembly (5) moving into the base (3), a sealed space is formed and exhaust is achieved through the exhaust hole (12) on the base (3) until the piston assembly (5) contacts the retaining ring base assembly (2). Then remove the bracket assembly (6) and the guide sleeve (7). S2. A sealing ring Ⅲ (9) is installed inside the tank (10). The tank (10) is screwed onto the upper part of the base (3). The tank (10), the base (3), and the piston assembly (5) form a sealed space. S3. The nitrogen filling equipment (14) is started. The nitrogen filling equipment (14) fills the sealed space formed by the tank (10), the base (3), and the piston assembly (5) through the L-shaped hole (11). Nitrogen enters the tank (10) until the pressure of the filled nitrogen reaches the set pressure. S4. After the tank (10) is filled with nitrogen, the control unit controls the drive cylinder (13) to extend and push the push rod (1) to move upward until the piston assembly (5) is moved into the tank (10) and the retaining ring (4) is locked in the inner groove inside the tank (10).

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