Lightweight bag type energy accumulator

By designing fixtures and adjustment devices in lightweight capsule accumulators, the problems of complex installation, high maintenance costs and unstable performance in the prior art are solved, and the effects of rapid installation, precise adjustment and high performance stability are achieved.

CN222963093UActive Publication Date: 2025-06-10NINGBO FENGHUA SINOO HYDRAULIC TECH CO LTD
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Patent Information

Application Number
CN202422108492.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2025-06-10
Estimated Expiration
2034-08-29

AI Technical Summary

Technical Problem

The existing lightweight capsule accumulators are complex in the installation and disassembly process, high maintenance costs, and difficult to flexibly control the conveying speed of gas and hydraulic oil in the structural design, resulting in unstable equipment performance.

Method used

A lightweight capsule energy accumulator including a fixing device and a regulating device is designed. The fixing device achieves rapid installation and disassembly through the combination of mounting frame, mounting block and screw; the adjustment device achieves precise adjustment of the flow rate of gas and hydraulic oil through gears, lead screws and limiting mechanisms.

Benefits of technology

It simplifies the installation and disassembly of the accumulator, reduces maintenance difficulties and costs, and improves the response speed and performance stability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a light-weight bag type energy accumulator which comprises an energy accumulator body, a fixing device is arranged on the outer side of the energy accumulator body, adjusting devices are connected to the two ends of the energy accumulator body, each adjusting device comprises an adjusting sleeve, a connecting pipe, a fixing pipe, an adjusting block, a fixing frame, a threaded sleeve, an outer gear, a lead screw, an inner gear, a push spring and an ejector block, and the adjusting blocks are arranged in the fixing pipes. The fixing frame is arranged in the fixing pipe, the threaded sleeve is arranged on the fixing frame, the outer gear is connected to the outer side of the threaded sleeve, the lead screw is installed in the threaded sleeve, the inner gear is connected to the inner side of the adjusting sleeve, the ejector block is connected with the adjusting block through the push spring, and the limiting mechanism is arranged on the outer side of the fixing pipe and comprises a positioning sleeve, a connecting spring, a positioning groove and a positioning rod. The positioning sleeve is arranged on the outer side of the fixing pipe in a sleeving mode through threads, one end of the positioning rod is connected with the outer side of the adjusting sleeve through the connecting spring, the multiple positioning grooves are formed in the outer side of the fixing pipe, and convenient installation and maintenance, accurate flow speed adjustment and stable operation performance are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of lightweight bladder accumulators, and more specifically, it relates to a lightweight bladder accumulator. Background Art

[0002] In the existing technology, there are some challenges in the design and operation of lightweight bladder accumulators, and these problems may affect the performance and reliability of the equipment.

[0003] First of all, the simplicity of the structure of the existing device may lead to the complexity of the installation and disassembly process. Since the design of the accumulator may not consider the convenience of quick connection or disassembly, this may result in more time and effort required for maintaining or replacing the accumulator. Such a cumbersome process not only increases the maintenance cost but also may lead to an extended downtime of the equipment, thus affecting the production efficiency.

[0004] Secondly, in the existing technology, it is usually necessary to supply gas and hydraulic oil to both ends of the accumulator simultaneously to ensure the normal operation of the equipment. However, due to the limitations of the structural design, it may not be possible to flexibly control the conveying speeds of the gas and the hydraulic oil. Such insufficient control may cause the accumulator unable to adjust its response speed according to the actual working requirements, thus affecting the performance of the entire system.

[0005] In addition, to solve the above problems, some mechanisms are designed to regulate the flow rates of the gas and the hydraulic oil. However, these mechanisms may not be able to ensure long-term stable operation due to their simple structures. During the operation of the equipment, due to vibrations or other external factors, the adjusted flow rates may change, which may lead to unstable performance of the accumulator and even may cause system failures. Summary of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] Aiming at the problems existing in the existing technology, the utility model provides a lightweight bladder accumulator to solve the technical problems mentioned in the background art.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the present utility model provides the following technical solution: a lightweight bladder accumulator, including an accumulator, characterized in that: a fixing device is provided outside the accumulator, and adjusting devices are connected to both ends of the accumulator. The adjusting device includes an adjusting sleeve, a connecting pipe, a fixing pipe, an adjusting block, a fixing frame, a threaded sleeve, an external gear, a lead screw, an internal gear, a pushing spring and a top block. The two sides of the adjusting sleeve are respectively rotatably connected to the connecting pipe and the fixing pipe. The adjusting block is arranged inside the fixing pipe. The fixing frame is fixedly arranged inside the fixing pipe. The threaded sleeve is rotatably arranged on the fixing frame. The external gear is connected to the outside of the threaded sleeve. The lead screw is movably installed in the threaded sleeve through threads. The internal gear is fixedly connected to the inside of the adjusting sleeve. The top block is connected to the adjusting block through the pushing spring. A limiting mechanism is arranged outside the fixing pipe. The limiting mechanism includes a positioning sleeve, a connecting spring, a positioning groove and a positioning rod. The positioning sleeve is sleeved outside the fixing pipe through threads. One end of the positioning rod is connected to the outside of the adjusting sleeve through the connecting spring. A plurality of the positioning grooves are opened on the outside of the fixing pipe. The other end of the positioning rod is clamped into the positioning groove.

[0010] The present utility model is further arranged such that an adjusting groove is opened inside the fixing pipe. One side of the adjusting block is connected with an adjusting plate. The adjusting plate is slidably installed in the adjusting groove, and both the adjusting groove and the adjusting plate are designed with an inclined structure.

[0011] The present utility model is further arranged such that a limiting frame is arranged inside the fixing pipe. The limiting frame is fixedly connected inside the fixing pipe.

[0012] The present utility model is further arranged such that a sliding groove is opened on the outside of the lead screw. A sliding block is arranged inside the limiting frame. The sliding groove is adapted to the sliding block. The arrangements of the sliding groove and the sliding block realize the limitation of the lead screw.

[0013] The present utility model is further arranged such that a fixing plate is arranged inside the fixing pipe. One side of the fixing plate is provided with a spring. The other end of the spring is connected to the adjusting block.

[0014] The present utility model is further arranged such that anti-slip strips are arranged on the outside of both the adjusting sleeve and the positioning sleeve. The anti-slip strips are fixedly arranged on the outside of the adjusting sleeve and the positioning sleeve. The arrangement of the anti-slip strips improves the operation feel.

[0015] The present utility model is further arranged such that the fixing device includes an installation frame, an installation block, a card slot, a clamp, a nut and a screw rod. The clamp is connected above the installation frame. The card slot is opened on one of the installation blocks. The installation block is fixedly connected to one side of the clamp. The nut is movably connected to the outside of the screw rod through threads. The arrangement of the fixing device facilitates the installation of the accumulator.

[0016] The present utility model is further configured such that a rotating groove is provided on the other mounting block, a rotating shaft is provided at one end of the screw rod, and the screw rod is movably connected to the mounting block through the rotating shaft and the rotating groove. The arrangement of the rotating shaft and the rotating groove makes the installation process more convenient.

[0017] (III) Advantageous Effects

[0018] Compared with the prior art, the present utility model provides a lightweight bladder accumulator, which has the following

[0019] advantageous effects:

[0020] 1. The beneficial effect of the fixing device is that it provides a simple and stable installation method for the accumulator. Through the design of the mounting frame, mounting block, card slot and clamp, the fixing device can quickly fix the accumulator in place. At the same time, through the cooperation of the nut and the screw rod, the fastening of the accumulator installation is realized. This design makes the installation and disassembly of the accumulator convenient and fast, reduces the maintenance difficulty, and improves the work efficiency. Especially when regular maintenance or emergency replacement is required, this fixing device can significantly reduce the downtime.

[0021] 2. The beneficial effect of the adjusting device is that it realizes an accurate and responsive flow rate adjustment mechanism. Through the coordinated action of components such as the adjusting sleeve, connecting pipe, fixed pipe, adjusting block, fixed frame, threaded sleeve, gear, lead screw, push spring and top block, the adjusting device can adjust the conveying speed of gas or hydraulic oil according to actual needs. The design of the inclined adjusting groove and the adjusting plate, as well as the cooperation of the spring and the top block, ensure the smoothness and accuracy of the adjustment process. This adjustment mechanism not only improves the response speed of the system, but also enhances the operation flexibility, thereby optimizing the performance of the entire system.

[0022] 3. The beneficial effect of the limiting mechanism is that it provides a stable and reliable positioning and limiting function. Through the design of the positioning sleeve, connecting spring, positioning groove and positioning rod, the limiting mechanism can ensure the stability of the adjusting sleeve after adjusting the flow rate, preventing the change of the adjustment position due to equipment vibration or other factors. The cooperation of the slider and the sliding groove, as well as the setting of the limiting frame, further enhances the accuracy and reliability of the adjustment process. This design not only ensures the flow rate stability of the system after adjustment, but also improves the safety and reliability of the long-term operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of a lightweight bladder accumulator in the present utility model;

[0024] Figure 2 is Figure 1 a partial enlarged structural schematic diagram at A in

[0025] Figure 3This is a schematic cross-sectional structure diagram of the adjustment device and the limit mechanism in the present utility model;

[0026] Figure 4 is Figure 3 a schematic diagram of the partially enlarged structure at position B in

[0027] Figure 5 is Figure 3 a schematic diagram of the partially enlarged structure at position C in

[0028] In the figure: 1. Accumulator; 2. Adjusting sleeve; 3. Connecting pipe; 4. Fixed pipe; 5. Adjusting block; 6. Fixed frame; 7. Threaded sleeve; 8. External gear; 9. Lead screw; 10. Internal gear; 11. Push spring; 12. Top block; 13. Positioning sleeve; 14. Connecting spring; 15. Positioning groove; 16. Positioning rod; 17. Adjusting groove; 18. Adjusting plate; 19. Limit frame; 20. Slide groove; 21. Slide block; 22. Fixed plate; 23. Spring; 24. Anti-slip strip; 25. Mounting frame; 26. Mounting block; 27. Card slot; 28. Clamp; 29. Nut; 30. Screw rod; 31. Rotating groove; 32. Rotating shaft. Specific embodiments

[0029] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0030] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0031] In the present utility model, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for ease of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms are not used to limit the present utility model.

[0032] Please refer to Figures 1-5, a lightweight bladder accumulator, including an accumulator 1, characterized in that: a fixing device is provided outside the accumulator 1, and adjusting devices are connected to both ends of the accumulator 1. The adjusting device includes an adjusting sleeve 2, a connecting pipe 3, a fixing pipe 4, an adjusting block 5, a fixing frame 6, a threaded sleeve 7, an external gear 8, a lead screw 9, an internal gear 10, a push spring 11 and a top block 12. The two sides of the adjusting sleeve 2 are respectively rotatably connected to the connecting pipe 3 and the fixing pipe 4. The adjusting block 5 is arranged inside the fixing pipe 4. The fixing frame 6 is fixedly arranged inside the fixing pipe 4. The threaded sleeve 7 is rotatably arranged on the fixing frame 6. The external gear 8 is connected to the outside of the threaded sleeve 7. The lead screw 9 is movably installed in the threaded sleeve 7 through a thread. The internal gear 10 is fixedly connected to the inside of the adjusting sleeve 2. The top block 12 is connected to the adjusting block 5 through the push spring 11. A limiting mechanism is arranged outside the fixing pipe 4. The limiting mechanism includes a positioning sleeve 13, a connecting spring 14, a positioning groove 15 and a positioning rod 16. The positioning sleeve 13 is sleeved outside the fixing pipe 4 through a thread. One end of the positioning rod 16 is connected to the outside of the adjusting sleeve 2 through the connecting spring 14. A plurality of positioning grooves 15 are opened on the outside of the fixing pipe 4. The other end of the positioning rod 16 is engaged in the positioning groove 15.

[0033] An adjusting groove 17 is opened inside the fixing pipe 4. One side of the adjusting block 5 is connected with an adjusting plate 18. The adjusting plate 18 is slidably installed in the adjusting groove 17, and both the adjusting groove 17 and the adjusting plate 18 are designed with an inclined structure.

[0034] A limiting frame 19 is arranged inside the fixing pipe 4. The limiting frame 19 is fixedly connected inside the fixing pipe 4.

[0035] A chute 20 is opened on the outside of the lead screw 9. A slider 21 is arranged inside the limiting frame 19. The chute 20 is adapted to the slider 21.

[0036] A fixing plate 22 is arranged inside the fixing pipe 4. One side of the fixing plate 22 is provided with a spring 23. The other end of the spring 23 is connected to the adjusting block 5.

[0037] Anti-slip strips 24 are arranged on the outside of both the adjusting sleeve 2 and the positioning sleeve 13. The anti-slip strips 24 are fixedly arranged on the outside of the adjusting sleeve 2 and the positioning sleeve 13.

[0038] In this embodiment, when it is necessary to adjust the conveying speed of gas or hydraulic oil, first rotate the positioning sleeve 13. The positioning sleeve 13 will move along the thread. Then, the outer side of the positioning rod 16 will lose the limit of the inner wall of the positioning sleeve 13. Then rotate the adjusting sleeve 2. The adjusting sleeve 2 will drive the positioning rod 16 to move. Due to the rounded corner structure design at the edge of the positioning groove 15 and the end of the positioning rod 16, and the connecting spring 14 only provides a small restoring force. Then, the side wall of the positioning groove 15 squeezes the side wall of the positioning rod 16, so that one end of the positioning rod 16 slides out of the positioning groove 15. At the same time, the other end of the positioning rod 16 will drive the connecting spring 14 to stretch. At the same time, the adjusting sleeve 2 will drive the internal gear 10 arranged inside to rotate. Then, the internal gear 10 will drive each external gear 8 meshing with it to rotate. Then, the external gear 8 will drive the threaded sleeve 7 to rotate on the fixed frame 6. Since the lead screw 9 and the threaded sleeve 7 are movably connected by threads, and the slider 21 arranged on the limit frame 19 and the chute 20 opened on the lead screw 9 form a limit for the lead screw 9. Then, the lead screw 9 will slide along the slider 21 and the chute 20. Then, the lead screw 9 will push the adjusting block 5 to move. The adjusting block 5 will cooperate with the fixed plate 22 to squeeze the spring 23. At the same time, the adjusting block 5 will drive the adjusting plate 18 arranged on one side to slide along the adjusting groove 17. Since the adjusting groove 17 and the adjusting plate 18 are of an inclined structure design. When the adjusting plate 18 slides along the adjusting groove 17, the adjusting block 5 will move inward while sliding. Then, multiple top blocks 12 will gradually abut against each other. Then, the top blocks 12 will cooperate with the adjusting block 5 to squeeze the push spring 11. Then, the gap of the push spring 11 changes, restricting the passing speed of gas or hydraulic oil. At the same time, the movement of the adjusting block 5 changes the cross-sectional area at the corresponding position in the fixed tube 4, thereby further changing the passing speed of gas or hydraulic oil. After adjustment, stop rotating the adjusting sleeve 2. Then, the connecting spring 14 will drive one end of the positioning rod 16 to engage with the corresponding positioning groove 15. Then, rotate the positioning sleeve 13 in the reverse direction. The positioning sleeve 13 will reset along the thread. Then, the inner wall of the positioning sleeve 13 will limit the outer side of the positioning rod 16 again, so that the positioning rod 16 will not move. Then, the positioning rod 16 will cooperate with the positioning groove 15 to limit the adjusting sleeve 2, so that the adjusting sleeve 2 will not rotate, thereby ensuring the stability after the flow rate is adjusted.

[0039] Please refer to Figure 1 and Figure 2 As an embodiment of the fixing device: The fixing device includes a mounting frame 25, a mounting block 26, a card slot 27, a clamp 28, a nut 29 and a screw rod 30. The clamp 28 is connected above the mounting frame 25. The card slot 27 is opened on one of the mounting blocks 26. The mounting block 26 is fixedly connected to one side of the clamp 28. The nut 29 is movably connected to the outside of the screw rod 30 by threads.

[0040] Another mounting block 26 is provided with a rotating groove 31. One end of the screw 30 is provided with a rotating shaft 32. The screw 30 is movably connected to the mounting block 26 through the rotating shaft 32 and the rotating groove 31.

[0041] More specifically, when maintenance of the accumulator 1 is required, first rotate the nut 29 so that the nut 29 rotates along the screw 30 and the nut 29 no longer presses the mounting block 26. Then rotate the screw 30 so that the screw 30 slides out of the clamping groove 27 and the screw 30 rotates around the rotating shaft 32 and the rotating groove 31 as the center, so that the cooperation of the nut 29 and the screw 30 no longer limits the clamping hoop 28. Then the accumulator 1 can be taken out of the clamping hoop 28 for maintenance. After the maintenance is completed, the accumulator 1 can be reinstalled inside the clamping hoop 28 by operating in the reverse direction according to the above process.

[0042] In summary, when the overall device is in use or operation: when it is necessary to adjust the conveying speed of gas or hydraulic oil, first rotate the positioning sleeve 13. The positioning sleeve 13 will move along the thread. Then, the outer side of the positioning rod 16 will lose the limit of the inner wall of the positioning sleeve 13. Then rotate the adjusting sleeve 2. The adjusting sleeve 2 will drive the positioning rod 16 to move. Due to the rounded corner structure design at the edge of the positioning groove 15 and the end of the positioning rod 16, and the connecting spring 14 only provides a small restoring force. Then, the side wall of the positioning groove 15 squeezes the side wall of the positioning rod 16, causing one end of the positioning rod 16 to slide out of the positioning groove 15. At the same time, the other end of the positioning rod 16 will drive the connecting spring 14 to stretch. At the same time, the adjusting sleeve 2 will drive the internal gear 10 arranged inside to rotate. Then, the internal gear 10 will drive each external gear 8 meshing with it to rotate. Then, the external gear 8 will drive the threaded sleeve 7 to rotate on the fixed frame 6. Since the lead screw 9 and the threaded sleeve 7 are movably connected by threads, and the slider 21 arranged on the limit frame 19 and the chute 20 opened on the lead screw 9 limit the lead screw 9. Then, the lead screw 9 will slide along the slider 21 and the chute 20. Then, the lead screw 9 will push the adjusting block 5 to move. The adjusting block 5 will cooperate with the fixed plate 22 to squeeze the spring 23. At the same time, the adjusting block 5 will drive the adjusting plate 18 arranged on one side to slide along the adjusting groove 17. Since the adjusting groove 17 and the adjusting plate 18 are of an inclined structure design, when the adjusting plate 18 slides along the adjusting groove 17, the adjusting block 5 will gather inward while sliding. Then, multiple top blocks 12 will gradually abut against each other. Then, the top blocks 12 will cooperate with the adjusting block 5 to squeeze the push spring 11. Then, the gap of the push spring 11 changes, restricting the passing speed of gas or hydraulic oil. At the same time, the movement of the adjusting block 5 changes the cross-sectional area at the corresponding position in the fixed pipe 4, thereby further changing the passing speed of gas or hydraulic oil. After adjustment to the appropriate value, stop rotating the adjusting sleeve 2. Then, the connecting spring 14 will drive one end of the positioning rod 16 to snap into the corresponding positioning groove 15. Then, rotate the positioning sleeve 13 in the reverse direction. The positioning sleeve 13 will reset along the thread. Then, the inner wall of the positioning sleeve 13 will limit the outer side of the positioning rod 16 again, so that the positioning rod 16 will not move. Then, the positioning rod 16 will cooperate with the positioning groove 15 to limit the adjusting sleeve 2, so that the adjusting sleeve 2 will not rotate, thus ensuring the stability after the flow rate adjustment.

[0043] When it is necessary to maintain the accumulator 1, first rotate the nut 29, so that the nut 29 rotates along the screw rod 30 and the nut 29 no longer presses the mounting block 26 tightly. Then rotate the screw rod 30, so that the screw rod 30 slides out of the card slot 27 and the screw rod 30 and the rotating shaft 32 rotate around the rotating slot 31 as the center, so that the nut 29 and the screw rod 30 no longer limit the clamp 28. Then, the accumulator 1 can be taken out of the clamp 28 for maintenance. After the maintenance is completed, reverse the above process to reinstall the accumulator 1 inside the clamp 28.

[0044] Among all the solutions mentioned above, for the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. Whenever fixed connection is involved above, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight bladder accumulator, comprising an accumulator (1), characterized in that: The accumulator (1) is provided with a fixing device on the outside, and the two ends of the accumulator (1) are connected with an adjusting device, wherein the adjusting device comprises an adjusting sleeve (2), a connecting pipe (3), a fixing pipe (4), an adjusting block (5), a fixing frame (6), a threaded sleeve (7), an external gear (8), a lead screw (9), an internal gear (10), a push spring (11) and a top block (12), wherein the adjusting block (5) is arranged in the fixing pipe (4), the fixing frame (6) is arranged in the fixing pipe (4), the threaded sleeve (7) is arranged on the fixing frame (6), the external gear (8) is connected to the outside of the threaded sleeve (7), and the lead screw (9) is installed on the threaded sleeve (7). ), the internal gear (10) is connected to the inner side of the adjusting sleeve (2), the top block (12) is connected to the adjusting block (5) through a push spring (11), a limiting mechanism is arranged on the outer side of the fixing tube (4), the limiting mechanism comprises a positioning sleeve (13), a connecting spring (14), a positioning groove (15) and a positioning rod (16), the positioning sleeve (13) is arranged on the outer side of the fixing tube (4) through a threaded sleeve, one end of the positioning rod (16) is connected to the outer side of the adjusting sleeve (2) through a connecting spring (14), a plurality of positioning grooves (15) are arranged on the outer side of the fixing tube (4), and the other end of the positioning rod (16) is engaged in the positioning groove (15).

2. A lightweight bladder accumulator according to claim 1, characterized in that: An adjustment groove (17) is provided in the fixed tube (4), and an adjustment plate (18) is connected to one side of the adjustment block (5). The adjustment plate (18) is slidably installed in the adjustment groove (17), and both the adjustment groove (17) and the adjustment plate (18) are of inclined structural design.

3. A lightweight bladder accumulator according to claim 2, characterized in that: A limiting frame (19) is arranged inside the fixed tube (4), and the limiting frame (19) is fixedly connected inside the fixed tube (4).

4. A lightweight bladder accumulator according to claim 3, characterized in that: A sliding groove (20) is provided on the outside of the lead screw (9), a sliding block (21) is provided inside the limiting frame (19), and the sliding groove (20) is adapted to the sliding block (21).

5. A lightweight bladder accumulator according to claim 4, characterized in that: A fixing plate (22) is provided inside the fixing tube (4), a spring (23) is provided on one side of the fixing plate (22), and the other end of the spring (23) is connected to the adjustment block (5).

6. A lightweight bladder accumulator according to claim 5, characterized in that: The outer sides of the adjusting sleeve (2) and the positioning sleeve (13) are both provided with anti-slip strips (24), and the anti-slip strips (24) are fixedly arranged on the outer sides of the adjusting sleeve (2) and the positioning sleeve (13).

7. A lightweight bladder accumulator according to any one of claims 1 to 6, characterized in that: The fixing device comprises a mounting frame (25), a mounting block (26), a clamping groove (27), a clamping hoop (28), a nut (29) and a screw rod (30); the clamping hoop (28) is connected to the top of the mounting frame (25); the clamping groove (27) is provided on one of the mounting blocks (26); the mounting block (26) is fixedly connected to one side of the clamping hoop (28); and the nut (29) is movably connected to the outside of the screw rod (30) through a thread.

8. A lightweight bladder accumulator according to claim 7, characterized in that: another A rotating groove (31) is provided on the mounting block (26), a rotating shaft (32) is provided at one end of the screw rod (30), and the screw rod (30) is movably connected to the mounting block (26) via the rotating shaft (32) and the rotating groove (31).