Three-cavity energy accumulator with adjustable volume

By designing an adjustable-volume three-chamber accumulator and utilizing a limiting frame and threaded connection structure, the chamber size can be quickly adjusted, solving the problem of needing to replace the container in existing technologies, improving efficiency and reducing costs.

CN224214460UActive Publication Date: 2026-05-08ROTH HYDRAULICS (TAICANG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ROTH HYDRAULICS (TAICANG) CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing energy storage devices require different containers to be replaced when used in different scenarios. The size of a single chamber cannot be adjusted, which increases the cost and manpower required for use.

Method used

Design an adjustable-volume three-chamber accumulator. Three chambers are formed by setting first and second limiting frames. The airbag volume is easily adjusted by using threaded grooves and threaded connections of support plates, combined with protrusions and pry holes. The chamber size can be quickly adjusted by rotating the connecting column with a metal rod.

Benefits of technology

It enables flexible adjustment of the chamber size in different scenarios, reduces the need to replace containers, improves efficiency and reduces costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a volume-adjustable three-cavity energy accumulator, and relates to the liquefied energy storage technical field, a container assembly comprises a container shell, the interior of the container shell is fixedly connected with a first limiting frame and a second limiting frame to form a three-cavity chamber, the top of the container shell is fixedly connected with a top cover, and the top cover is fixedly connected with the top of the container shell. And a moving assembly is movably connected into the container assembly and comprises a connecting column penetrating through the container shell, and a supporting plate is fixedly connected to the bottom of the connecting column. According to the utility model, the first limiting frame and the second limiting frame are arranged to form the three chambers which can be adjusted into different sizes, and the top cover is arranged different from the original top cover, so that the connecting column is easier to rotate at the top cover in order to adapt to moving components in the container and smooth arrangement; the threads arranged on the inner sides of the first limiting frame and the second limiting frame are used for being connected with the outer surface of the supporting plate.
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Description

Technical Field

[0001] This utility model relates to the field of liquefied energy storage technology, and in particular to a three-chamber accumulator with adjustable volume. Background Technology

[0002] An accumulator is an energy storage device in a hydraulic and pneumatic system. It converts the energy in the system into compressed energy or potential energy and stores it at the appropriate time. When the system needs it, it converts the compressed energy or potential energy into hydraulic or pneumatic energy and releases it to replenish the system. However, existing accumulators are all single-chamber energy storage devices. Different containers need to be replaced for different application scenarios. The single chamber cannot adjust the size of the chamber, which increases the cost and manpower required for use. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as the need to replace different containers for different applications and the inability to adjust the size of a single chamber. This invention provides a three-chamber accumulator with adjustable volume.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a container assembly, characterized in that: the container assembly includes a container shell, a first limiting frame and a second limiting frame are fixedly connected inside the container shell to form a three-chamber structure, a top cover is fixedly connected to the top of the container shell, a movable component is movably connected inside the container assembly, the movable component includes a connecting column penetrating the container shell, a support plate is fixedly connected to the bottom of the connecting column, and an airbag is movably connected to the bottom of the support plate.

[0005] In a preferred embodiment, the container assembly is connected to a fixing component at the bottom. The fixing component includes a first clamping block and a second clamping block connected by bolts. The first clamping block and the second clamping block have clamping slots on their inner sides.

[0006] In a preferred embodiment, a limiting groove is formed inside the second clamping block, and a limiting block is movably connected inside the limiting groove. The limiting block is fixedly connected to the outside of the first clamping block and engages with the limiting groove. The inner wall of the clamping groove is provided with anti-slip teeth.

[0007] In a preferred embodiment, the inner walls of both the first and second limiting frames are provided with threaded grooves, and the first and second limiting frames are annular plate structures that divide the interior of the container shell into a first chamber, a second chamber, and a third chamber.

[0008] In a preferred embodiment, an inflatable rod is fitted to the top of the connecting post through a round hole. The inflatable rod communicates with the inside of the airbag. A protrusion is fixedly connected to the top of the connecting post. A perforation is opened on the outer surface of the protrusion. An air inlet is provided at the top of the airbag.

[0009] In a preferred embodiment, the outer surface of the support plate is provided with a threaded coil, and the threaded coil is fixedly connected to the inner wall of the first and second limiting frames by threads.

[0010] In a preferred embodiment, the outer surface of the top cover is movably connected to the outer surface of the connecting post through a through hole.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] This invention, by setting a first limiting frame and a second limiting frame, forms three chambers that can be adjusted to different sizes. By setting a top cover, which differs from the original top cover, a smooth design is provided to accommodate the moving components inside the container, making it easier to rotate the connecting column at the top cover. The threads on the inner sides of the first and second limiting frames are used to connect with the outer surface of the support plate. The protrusions and pry holes facilitate the insertion of a metal rod to rotate the connecting column. When the connecting column rotates, the support plate rotates simultaneously, and when it rotates out of the first and second limiting frames, it can move up and down without obstruction, facilitating quick adjustment of the volume of the airbag. By setting the above structure, three chambers of different sizes can be set up and adjusted. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an adjustable-volume three-chamber accumulator provided by this utility model.

[0014] Figure 2 A cross-sectional structural diagram of an adjustable-volume three-chamber accumulator provided by this utility model.

[0015] Figure 3 This is a schematic diagram of the disassembly structure of the movable component of an adjustable-volume three-chamber accumulator provided by this utility model.

[0016] Figure 4 This is a schematic diagram of the fixed component of an adjustable-volume three-chamber accumulator provided by this utility model.

[0017] Legend:

[0018] 1. Container assembly; 11. Container shell; 12. First limiting frame; 13. Second limiting frame; 14. Top cover; 2. Moving assembly; 21. Connecting column; 22. Support plate; 23. Airbag; 24. Inflatable rod; 25. Protrusion; 26. Folding hole; 27. Air inlet; 26. Folding hole; 3. Fixing assembly; 31. First clamping block; 32. Second clamping block; 33. Limiting groove; 34. Limiting block; 35. Bolt; 36. Clamping slot. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] like Figures 1-4 As shown, this utility model provides a technical solution: an adjustable-volume three-chamber accumulator, including a container assembly 1, the container assembly 1 including a container shell 11, a first limiting frame 12 and a second limiting frame 13 fixedly connected inside the container shell 11 to form three chambers, a top cover 14 fixedly connected to the top of the container shell 11, the outer surface of the top cover 14 being movably connected to the outer surface of the connecting post 21 through a through hole, the inner walls of the first limiting frame 12 and the second limiting frame 13 are both provided with threaded grooves, the first limiting frame 12 and the second limiting frame 13 are annular plate structures, dividing the interior of the container shell 11 into a first chamber and a second chamber. The container assembly 1 is movably connected to the inner chamber of the first chamber and the third chamber. The movable assembly 2 includes a connecting post 21 that penetrates the outer shell of the container 11. A support plate 22 is fixedly connected to the bottom of the connecting post 21. A threaded coil is provided on the outer surface of the support plate 22. The threaded coil is fixedly connected to the inner wall of the first limiting frame 12 and the second limiting frame 13 by threads. An airbag 23 is movably connected to the bottom of the support plate 22. An inflation rod 24 is attached to the top of the connecting post 21 through a round hole. The inflation rod 24 communicates with the inside of the airbag 23. A protrusion 25 is fixedly connected to the top of the connecting post 21. A pry hole 26 is opened on the outer surface of the protrusion 25.

[0022] In this embodiment, by setting the first limiting frame 12 and the second limiting frame 13, three chambers that can be adjusted to different sizes are formed. The top cover 14, which differs from the original top cover 14, is designed to accommodate the moving component 2 inside the container, and its smooth design makes it easier to rotate the connecting post 21 at the top cover 14. The threads on the inner sides of the first limiting frame 12 and the second limiting frame 13 are used to connect with the outer surface of the support plate 22. The support plate 22 and the bottom of the connecting post 21 are fixedly connected, and the connecting post 21 has a through hole inside, which does not obstruct the air inlet 27 of the airbag 23, allowing the inflation rod 24 to pass through. The connecting post 21 is inserted through the air rod 24, which is made of metal and cannot be bent. This is to prevent damage to the soft material of the air rod 24 when the connecting post 21 rotates. The protrusion 25 and the pry hole 26 are provided to facilitate the insertion of the metal rod to rotate the connecting post 21. When the connecting post 21 rotates, the support plate 22 will rotate at the same time. When it rotates out of the first limiting frame 12 and the second limiting frame 13, it can move up and down without obstruction, which is convenient for quickly adjusting the volume of the airbag 23. If the entire interior is connected to the support plate 22 with threads, the adjustment speed will be too slow, and it will not be easy to use different sized cavities for different sized airbags 23.

[0023] Example 2

[0024] like Figure 4 As shown, the container assembly 1 is connected to the fixing assembly 3 at the bottom. The fixing assembly 3 includes a first clamping block 31 and a second clamping block 32 connected by bolts 35. The first clamping block 31 and the second clamping block 32 have clamping slots 36 on their inner sides. The second clamping block 32 has a limiting slot 33 inside. The limiting slot 33 is movably connected to a limiting block 34. The limiting block 34, which engages with the limiting slot 33, is fixed to the outer side of the first clamping block 31. The inner wall of the clamping slot 36 is provided with anti-slip teeth.

[0025] In this embodiment, since the top ends of the inflatable rod 24 and the connecting column 21 are movably connected through a round hole, the connecting column 21 needs to be rotated for adjustment. Therefore, a stable structure is required. When the adjustment is completed, the inflatable rod 24 is fixed. The first clamping block 31 and the second clamping block 32 are set up to clamp the rod in conjunction with the clamping groove. The first clamping block 31 is a movable end. The limiting block 34 is fixedly connected to the first clamping block 31. The first clamping block 31 can move appropriately through the limiting groove 33 and the limiting block 34. When the inflatable rod 24 is fixed, the first clamping block 31 and the second clamping block 32 are tightened by bolts 35. At the same time, the limiting block 34 moves in the limiting groove 33, so that the clamping groove 36 is tightly attached to the outer surface of the inflatable rod 24.

[0026] Working principle:

[0027] like Figures 1-4As shown, when adjusting the container volume, first remove the valve at the bottom of the container shell 11, pull the airbag 23 out from the bottom. Since the air inlet 27 is not removed, the inflation rod 24 will be pulled out at the same time. Then separate the airbag 23 and the inflation rod 24 from the air inlet 27. If the energy storage chamber with the capacity of the second chamber is required, first select an airbag 23 of appropriate size and reinstall it on the inflation rod 24. Then pull it into the chamber and insert the metal rod through the protrusion 26 of the protrusion 25 to rotate the connecting column 21 counterclockwise, so that the support plate 22 is separated from the first limiting frame 12. When the connecting column 21 rotates, the support plate 22 will rotate at the same time. When it rotates away from the first limiting frame 12 and the second limiting frame 13, it will move up and down without obstruction and move directly to the second limiting frame 13. Tighten it counterclockwise inside the second limiting frame 13 to fix the support plate 22 and the second limiting frame 13. Finally, install the bottom valve and inflate.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An adjustable-volume three-chamber accumulator, comprising a container assembly (1), characterized in that: The container assembly (1) includes a container shell (11), and a first limiting frame (12) and a second limiting frame (13) are fixedly connected inside the container shell (11) to form a three-chamber structure. A top cover (14) is fixedly connected to the top of the container shell (11). A moving assembly (2) is movably connected inside the container assembly (1). The moving assembly (2) includes a connecting post (21) that penetrates the container shell (11). A support plate (22) is fixedly connected to the bottom of the connecting post (21). An airbag (23) is movably connected to the bottom of the support plate (22).

2. The adjustable-volume three-chamber accumulator according to claim 1, characterized in that: The container assembly (1) is connected to a fixing assembly (3) at the bottom. The fixing assembly (3) includes a first clamping block (31) and a second clamping block (32) connected by bolts (35). The first clamping block (31) and the second clamping block (32) have clamping slots (36) on their inner sides.

3. The adjustable-volume three-chamber accumulator according to claim 2, characterized in that: The second clamping block (32) has a limiting groove (33) inside, and a limiting block (34) is movably connected inside the limiting groove (33). The first clamping block (31) is fixedly connected to the limiting block (34) that engages with the limiting groove (33). The inner wall of the clamping slot (36) is provided with anti-slip teeth.

4. The adjustable-volume three-chamber accumulator according to claim 1, characterized in that: The inner walls of the first limiting frame (12) and the second limiting frame (13) are provided with threaded grooves. The first limiting frame (12) and the second limiting frame (13) are annular plate structures that divide the interior of the container shell (11) into a first chamber, a second chamber and a third chamber.

5. The adjustable-volume three-chamber accumulator according to claim 1, characterized in that: The top of the connecting post (21) is fitted with an inflation rod (24) through a round hole. The inflation rod (24) is connected to the inside of the airbag (23). The top of the connecting post (21) is fixedly connected with a protrusion (25). The outer surface of the protrusion (25) is provided with a pry hole (26). The top of the airbag (23) is provided with an air inlet (27).

6. The adjustable-volume three-chamber accumulator according to claim 1, characterized in that: The outer surface of the support plate (22) is provided with a threaded coil, which is fixedly connected to the inner wall of the first limiting frame (12) and the second limiting frame (13) by threads.

7. The adjustable-volume three-chamber accumulator according to claim 1, characterized in that: The outer surface of the top cover (14) is movably connected to the outer surface of the connecting post (21) through a through hole.