Multi-medium compatible diaphragm type energy accumulator

By introducing sealing and protection mechanisms into the diaphragm accumulator, the problem of sealing failure was solved, thereby improving the sealing effect and ensuring stable operation of the equipment.

CN223781754UActive Publication Date: 2026-01-09TIANJIN AOQI ACCUMULATOR CO LTD
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Patent Information

Application Number
CN202520623076.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-01-09
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing diaphragm accumulators may experience sealing failure after inflation due to the lack of limiting auxiliary devices, leading to gas leakage and reduced equipment operating efficiency.

Method used

A multi-media compatible diaphragm accumulator was designed, employing a sealing mechanism and a protection mechanism, including components such as a sealing groove, sealing ring, limiting ring, piston, threaded sleeve, movable rod, and spring. The piston movement stability is ensured through the cooperation of the limiting ring and the sealing ring, and the sealing effect is improved through wear-resistant strips and removable gaskets.

Benefits of technology

It achieves a good sealing effect, prevents gas leakage, improves the operational stability and wear resistance of the equipment, and ensures the stable operation of the accumulator.

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Abstract

The utility model discloses a multi-medium compatible diaphragm type energy accumulator, relates to the technical field of diaphragm type energy accumulators, and solves the problems that if the pressure borne by a short rod is too large, too much extension of a sealing block is possibly caused, the outer side of the sealing block is lack of a limiting auxiliary device, a sealing ferrule cannot be normally clamped in a sealing groove, and the service life of the sealing ferrule is influenced. According to the technical scheme, the problems that gas tightness of a container is damaged, gas leakage is caused, and the operation efficiency of equipment is possibly reduced are solved, the energy accumulator comprises an energy accumulator body, a sealing mechanism comprises a sealing groove, a sealing ring and a limiting ring, and a piston is fixedly installed on the bottom face of the limiting ring. The limiting ring and the sealing ring can be effectively driven to slide and move upwards on the inner walls of the two sides of the sealing groove, when the top face of the sealing ring abuts against the top wall of the sealing groove, the good sealing effect is achieved, the limiting ring plays a role in limiting control, and the stability of piston movement is maintained.
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Description

Technical Field

[0001] This utility model relates to the field of diaphragm accumulator technology, and in particular to a multi-media compatible diaphragm accumulator. Background Technology

[0002] Accumulators play a crucial and indispensable role in fluid power systems. Their core function is to store energy, allowing the system to temporarily conserve excess energy for later use. Simultaneously, accumulators effectively eliminate pulsations, significantly reducing vibration and noise in the fluid system and improving its stability and reliability. In hydraulic systems, the advantages of accumulators are particularly pronounced. By replenishing the fluid output from the pump in a timely manner, the system can meet flow requirements while significantly reducing the size of the fluid pump. This not only lowers equipment purchase costs but also reduces system energy consumption, achieving efficient resource utilization while improving overall system performance.

[0003] Patent publication number "CN222596419U" discloses "a diaphragm-type accumulator," comprising a container body. An air inlet channel is provided at the top of the container body, and a protective nut is threaded onto the outer ring of the top of the air inlet channel. An installation sleeve is threaded onto the inner ring of the air inlet channel, and a threaded block is threaded onto the inner ring of the installation sleeve. The threaded block has a notch inside, and a short rod is movably installed inside the notch. A sealing block is fixedly connected to the lower end of the short rod, and a second thread is provided on the outer ring of the short rod. A top plate is threaded onto the outer ring of the second thread, and the top plate is connected to the threaded block assembly via a spring. This invention allows for the separation of the installation sleeve from the air inlet channel by twisting it, and the separation of the threaded block and top plate from the installation sleeve and short rod, enabling the removal and replacement of the spring. Subsequent twisting installation is also more convenient, and the air inlet channel design facilitates gas filling.

[0004] After the gas filling is completed, the filling tool in the aforementioned patented device is removed. At this time, the short rod is no longer under external pressure, and the conical spring loses its force and resets, pushing the top plate upward. The short rod, which is threaded to the top plate, moves upward synchronously, causing the sealing block to reset and re-engage at the air inlet at the top of the container body, ensuring the sealing of the container body. If the pressure on the short rod is too great, it may cause the sealing block to protrude too much. If there is no limiting auxiliary device on the outside of the sealing block, it is very likely that the sealing ring will not be able to properly engage at the sealing groove, which will not only damage the airtightness of the container and cause gas leakage, but may also reduce the operating efficiency of the equipment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, the present invention provides a multi-media compatible diaphragm accumulator.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-media compatible diaphragm accumulator, comprising an accumulator body, wherein a protection mechanism and a sealing mechanism are respectively provided on the top of the accumulator body;

[0009] The sealing mechanism includes a sealing groove, a sealing ring, and a limiting ring. The outer side of the sealing ring and the outer side of the limiting ring are slidably connected to the two sides of the inner wall of the sealing groove, respectively. The bottom surface of the sealing ring is fixedly installed on the top surface of the limiting ring. A piston is fixedly installed on the bottom surface of the limiting ring. The outer side of the limiting ring is provided with an outlet that penetrates the inner side.

[0010] By adopting the above technical solution, after the gas is filled, the piston moves upward, which can effectively drive the limiting ring and the sealing ring to slide upward on both sides of the inner wall of the sealing groove. When the top surface of the sealing ring touches the top wall of the sealing groove, not only is a good sealing effect achieved, but the limiting ring also plays a limiting control role, maintaining the stability of the piston movement. This solves the problem that if the pressure on the short rod is too high, the sealing block may protrude too much. If the outer side of the sealing block lacks a limiting auxiliary device, the sealing ring may not be able to properly engage with the sealing groove, which will not only damage the airtightness of the container and cause gas leakage, but may also reduce the operating efficiency of the equipment.

[0011] As a preferred embodiment of the multi-media compatible diaphragm accumulator described in this utility model, an air inlet penetrating the top wall is fixedly installed on the top surface of the accumulator body, and the piston of the sealing mechanism is slidably connected to the inner wall of the air inlet.

[0012] By adopting the above technical solution and using a suitable inflation tool, the air inlet is reliably connected to the air source to carry out the inflation operation.

[0013] In a preferred embodiment of the multi-media compatible diaphragm accumulator of this utility model, the protection mechanism includes a threaded sleeve and a base plate. The outer side of the base plate is screwed onto the inner side of the threaded sleeve. A movable rod is provided on the inner side of the threaded sleeve. The bottom end of the movable rod is slidably connected through the surface and bottom surface of the base plate. A top plate is screwed onto the outer side of the movable rod. A spring is fixedly installed on the bottom surface of the top plate. The bottom end of the spring is fixedly installed on the surface of the base plate. Through holes penetrating the bottom surface are respectively opened on the surface of the base plate.

[0014] By adopting the above technical solution, during the inflation operation, the airflow passes through the through hole on the bottom plate surface, precisely pressurizing the sealing mechanism. As the pressure increases, the spring undergoes elastic deformation, driving the movable rod to push the sealing mechanism downward, and the gas smoothly enters the container. After inflation is completed, the spring moves upward by its own elastic force, driving the movable rod and the sealing mechanism to reset synchronously. After the sealing mechanism resets, it tightly seals the air inlet channel, ensuring that the container has a good sealing effect and effectively preventing gas leakage.

[0015] In a preferred embodiment of the multi-media compatible diaphragm accumulator described in this utility model, the outer side of the threaded sleeve of the protection mechanism is screwed onto the inner side of the air inlet, and a detachable outer cover is fixedly installed on the outer side of the top of the threaded sleeve.

[0016] By adopting the above technical solution, the detachable outer cover installed on the outer side of the top of the threaded sleeve can effectively prevent foreign objects from entering.

[0017] In a preferred embodiment of the multi-media compatible diaphragm accumulator described in this utility model, the bottom end of the movable rod of the protection mechanism is fixedly installed on the top surface of the piston of the sealing mechanism, and the sealing groove is opened at the bottom end of the threaded sleeve and penetrates through the interior.

[0018] By adopting the above technical solution, the piston can effectively provide a stable installation position for the movable rod installed on the top surface.

[0019] As a preferred embodiment of the multi-media compatible diaphragm accumulator described in this utility model, wear-resistant strips are fixedly installed on the outer side of the accumulator body, and a removable washer is fixedly installed on the top surface of the air inlet, with the surface of the washer adhering to the top wall of the threaded sleeve of the protection mechanism.

[0020] By adopting the above technical solution, the accumulator body is equipped with wear-resistant strips on the outside, which can effectively resist frictional loss during use and significantly improve the wear resistance of the accumulator body. The detachable gasket installed on the top surface of the air inlet, with the gasket surface fitting the top wall of the threaded sleeve of the protection mechanism, further enhances the sealing effect, avoids gas leakage, and ensures stable operation of the accumulator.

[0021] (III) Beneficial Effects

[0022] This invention provides a multi-media compatible diaphragm accumulator. It has the following beneficial effects:

[0023] 1. By adding a sealing mechanism, after the gas is filled, the piston moves upward, which can effectively drive the limiting ring and the sealing ring to slide upward on both sides of the inner wall of the sealing groove. When the top surface of the sealing ring touches the top wall of the sealing groove, not only is a good sealing effect achieved, but the limiting ring also plays a limiting control role, maintaining the stability of the piston movement. This solves the problem that if the pressure on the short rod is too high, the sealing block may protrude too much. If there is no limiting auxiliary device on the outside of the sealing block, the sealing ring may not be able to properly engage with the sealing groove, which will not only damage the airtightness of the container and cause gas leakage, but may also reduce the operating efficiency of the equipment.

[0024] 2. By adding wear-resistant strips and gaskets, the wear-resistant strips installed on the outside of the accumulator body can effectively resist frictional wear during use, significantly improving the wear resistance of the accumulator body. The removable gasket installed on the top surface of the air inlet, with the gasket surface fitting against the top wall of the threaded sleeve of the protection mechanism, further enhances the sealing effect, prevents gas leakage, and ensures stable operation of the accumulator. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 This is a front view structural diagram of the entire utility model.

[0028] Figure 3 This is a right-side half-sectional view of the overall structure of this utility model.

[0029] Figure 4 This is a schematic diagram of the overall left half-section structure of this utility model.

[0030] Figure 5 This is a right-side half-sectional view of the overall structure of this utility model.

[0031] Figure 6 This is an enlarged structural diagram of point A of the entire utility model.

[0032] In the diagram, 1. Accumulator body; 2. Air inlet; 3. Protection mechanism; 31. Threaded sleeve; 32. Base plate; 33. Movable rod; 34. Top plate; 35. Spring; 36. Through hole; 4. Sealing mechanism; 41. Piston; 42. Limiting ring; 43. Sealing groove; 44. Outlet; 45. Sealing ring; 5. Outer cover; 6. Wear-resistant strip; 7. Washer. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0034] Example 1

[0035] Reference Figures 1 to 6 This is the first embodiment of the present utility model. This embodiment provides a multi-media compatible diaphragm accumulator including an accumulator body 1, and a protection mechanism 3 and a sealing mechanism 4 respectively provided on the top of the accumulator body 1.

[0036] The sealing mechanism 4 includes a sealing groove 43, a sealing ring 45, and a limiting ring 42. The outer side of the sealing ring 45 and the outer side of the limiting ring 42 are slidably connected to the inner walls of the sealing groove 43 on both sides. The bottom surface of the sealing ring 45 is fixedly installed on the top surface of the limiting ring 42. A piston 41 is fixedly installed on the bottom surface of the limiting ring 42. The outer side of the limiting ring 42 is provided with an outlet 44 that penetrates the inner side.

[0037] Specifically, an air inlet 2 that penetrates the top wall is fixedly installed on the top surface of the accumulator body 1, and the piston 41 of the sealing mechanism 4 is slidably connected to the inner wall of the air inlet 2.

[0038] Furthermore, after the gas is filled, the piston 41 of the sealing mechanism 4 moves upward, which can effectively drive the limiting ring 42 and the sealing ring 45 to slide upward on both sides of the inner wall of the sealing groove 43. When the top surface of the sealing ring 45 touches the top wall of the sealing groove 43, not only is a good sealing effect achieved, but the limiting ring 42 also plays a limiting control role, maintaining the stability of the piston 41's movement. When filling with gas, the piston 41 moves downward, causing the limiting ring 42 and the sealing ring 45 to slide out, so that the gas is discharged from the outside of the limiting ring 42 through the inner side of the outlet 44 and enters the container.

[0039] Use a suitable inflation tool to reliably connect the air inlet 2 to the air source in order to carry out the inflation operation.

[0040] Example 2

[0041] Reference Figures 1 to 6This is the first embodiment of the present invention. Based on the previous embodiment, the protective mechanism 3 includes a threaded sleeve 31 and a base plate 32. The outer side of the base plate 32 is screwed to the inner side of the threaded sleeve 31. A movable rod 33 is provided on the inner side of the threaded sleeve 31. The bottom end of the movable rod 33 is slidably connected to the surface and bottom surface of the base plate 32 respectively. A top plate 34 is screwed to the outer side of the movable rod 33. A spring 35 is fixedly installed on the bottom surface of the top plate 34. The bottom end of the spring 35 is fixedly installed on the surface of the base plate 32. Through holes 36 penetrating the bottom surface are respectively opened on the surface of the base plate 32.

[0042] Specifically, the outer side of the threaded sleeve 31 of the protection mechanism 3 is screwed to the inner side of the air inlet 2. A removable outer cover 5 is fixedly installed on the outer side of the top of the threaded sleeve 31. The bottom end of the movable rod 33 of the protection mechanism 3 is fixedly installed on the top surface of the piston 41 of the sealing mechanism 4. The sealing groove 43 is opened at the bottom end of the threaded sleeve 31 and penetrates through the interior. Wear-resistant strips 6 are fixedly installed on the outer side of the accumulator body 1. A removable washer 7 is fixedly installed on the top surface of the air inlet 2. The surface of the washer 7 is attached to the top wall of the threaded sleeve 31 of the protection mechanism 3.

[0043] Furthermore, during the inflation operation of the protective mechanism 3, the airflow passes through the through hole 36 on the bottom surface of the base plate 32, precisely pressurizing the piston 41 of the sealing mechanism 4. As the pressure increases, the spring 35 undergoes elastic deformation, driving the movable rod 33 to push the piston 41 downward, and the gas smoothly enters the container. After inflation is completed, the spring 35 moves upward by its own elastic force, driving the movable rod 33 and the sealing mechanism 4 to reset synchronously. After the sealing mechanism 4 resets, it tightly seals the air inlet channel, ensuring that the container has a good sealing effect and effectively preventing gas leakage.

[0044] The removable outer cover 5 installed on the top outer side of the threaded sleeve 31 can effectively prevent foreign objects from entering. The wear-resistant strip 6 installed on the outer side of the accumulator body 1 can effectively resist frictional wear during use and significantly improve the wear resistance of the accumulator body 1. The removable gasket 7 installed on the top surface of the air inlet 2, and the surface of the gasket 7 is attached to the top wall of the threaded sleeve 31 of the protection mechanism 3, further enhances the sealing effect, avoids gas leakage, and ensures stable operation of the accumulator.

[0045] Working principle: Using a suitable inflation tool, the air inlet 2 is reliably connected to the air source to carry out the inflation operation.

[0046] When the protective mechanism 3 is being inflated, the airflow passes through the through hole 36 on the bottom surface of the base plate 32, precisely pressurizing the piston 41 of the sealing mechanism 4. As the pressure increases, the spring 35 undergoes elastic deformation, driving the movable rod 33 to push the piston 41 downward, allowing the gas to smoothly enter the container. After inflation is complete, the spring 35 moves upward by its own elastic force, causing the movable rod 33 and the sealing mechanism 4 to reset synchronously. After the sealing mechanism 4 resets, it tightly seals the air inlet channel, ensuring that the container has a good sealing effect and effectively preventing gas leakage. The top of the spring 35 is installed on the bottom surface of the top plate 34.

[0047] The removable outer cover 5 installed on the top outer side of the threaded sleeve 31 can effectively prevent foreign objects from entering. The wear-resistant strip 6 installed on the outer side of the accumulator body 1 can effectively resist frictional wear during use and significantly improve the wear resistance of the accumulator body 1. The removable gasket 7 installed on the top surface of the air inlet 2, and the surface of the gasket 7 is attached to the top wall of the threaded sleeve 31 of the protection mechanism 3, further enhances the sealing effect, avoids gas leakage, and ensures stable operation of the accumulator.

[0048] After the gas is filled, the piston 41 of the sealing mechanism 4 moves upward, which can effectively drive the limiting ring 42 and the sealing ring 45 to slide upward on both sides of the inner wall of the sealing groove 43. When the top surface of the sealing ring 45 touches the top wall of the sealing groove 43, not only is a good sealing effect achieved, but the limiting ring 42 also plays a limiting control role, maintaining the stability of the piston 41 movement. When filling with gas, the piston 41 moves downward, causing the limiting ring 42 and the sealing ring 45 to slide out, so that the gas is discharged from the outside of the limiting ring 42 through the inner side of the outlet 44 and enters the container.

[0049] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A multi-media compatible diaphragm accumulator, comprising an accumulator body (1), characterized in that: The energy storage body (1) is provided with a protection mechanism (3) and a sealing mechanism (4) on its top. The sealing mechanism (4) includes a sealing groove (43), a sealing ring (45), and a limiting ring (42). The outer side of the sealing ring (45) and the outer side of the limiting ring (42) are slidably connected to the inner walls of the sealing groove (43) respectively. The bottom surface of the sealing ring (45) is fixedly installed on the top surface of the limiting ring (42). A piston (41) is fixedly installed on the bottom surface of the limiting ring (42). The outer side of the limiting ring (42) is provided with an outlet (44) that penetrates the inner side.

2. The multi-medium compatible diaphragm accumulator according to claim 1, characterized in that: The accumulator body (1) has an air inlet (2) that penetrates the top wall fixedly installed on its top surface, and the piston (41) of the sealing mechanism (4) is slidably connected to the inner wall of the air inlet (2) on its outer side.

3. The multi-medium compatible diaphragm accumulator according to claim 1, characterized in that: The protective mechanism (3) includes a threaded sleeve (31) and a base plate (32). The outer side of the base plate (32) is screwed to the inner side of the threaded sleeve (31). A movable rod (33) is provided on the inner side of the threaded sleeve (31). The bottom end of the movable rod (33) is slidably connected through the surface and bottom surface of the base plate (32). A top plate (34) is screwed to the outer side of the movable rod (33). A spring (35) is fixedly installed on the bottom surface of the top plate (34). The bottom end of the spring (35) is fixedly installed on the surface of the base plate (32). Through holes (36) penetrating the bottom surface are respectively opened on the surface of the base plate (32).

4. A multi-medium compatible diaphragm accumulator according to claim 3, characterized in that: The outer side of the threaded sleeve (31) of the protective mechanism (3) is screwed to the inner side of the air inlet (2), and a detachable outer cover (5) is fixedly installed on the outer side of the top of the threaded sleeve (31).

5. A multi-medium compatible diaphragm accumulator according to claim 3, characterized in that: The bottom end of the movable rod (33) of the protection mechanism (3) is fixedly installed on the top surface of the piston (41) of the sealing mechanism (4), and the sealing groove (43) is opened at the bottom end of the threaded sleeve (31) and penetrates through the interior.

6. A multi-medium compatible diaphragm accumulator according to claim 2, characterized in that: Wear-resistant strips (6) are fixedly installed on the outer side of the accumulator body (1), and a detachable washer (7) is fixedly installed on the top surface of the air inlet (2). The surface of the washer (7) is attached to the top wall of the threaded sleeve (31) of the protection mechanism (3).

Citation Information

Patent Citations

  • Diaphragm type energy accumulator

    CN222596419U