Energy accumulator

Abstract

The utility model relates to the field of energy accumulators, in particular to an energy accumulator. The energy accumulator comprises a shell, an installation pipe arranged on the upper portion of the shell and a liquid exchange pipe arranged on the lower portion of the shell, an inner pipe is arranged in the middle of the installation pipe, a bearing plate is arranged on the lower portion of the inner pipe, the inner pipe is connected with a first outer pipe through threads, the first outer pipe is provided with a pressing plate corresponding to the bearing plate, and the bearing plate is sleeved with an air bag. The pressing plate is pressed outside the air bag, a stepped hole is formed in the mounting pipe, a sealing pipe is arranged on the first outer pipe, the first outer pipe and the sealing pipe are arranged in the stepped hole, and an upper plate is connected to the inner pipe through threads. The sealing performance of the air bag connecting position can be improved, and liquid of the energy accumulator is prevented from leaking.

Description

Technical Field

[0001] This utility model relates to the field of energy storage devices, and more specifically to an energy storage device. Background Technology

[0002] An accumulator is an energy storage device in a hydraulic or pneumatic system. It converts energy in the system into compressed or potential energy at appropriate times and stores it. When the system needs it, it converts the compressed or potential energy back into hydraulic or pneumatic energy to replenish the system. When the system pressure increases instantaneously, it can absorb this energy to ensure the overall system pressure remains normal.

[0003] In typical accumulators, a fixed amount of gas is injected into the gas bladder to inflate it. When the liquid pressure in the connected pipeline increases, the liquid compresses the gas bladder; conversely, when the liquid pressure decreases, the gas bladder forces the liquid out of the accumulator, thus maintaining stable liquid pressure within the pipeline. However, after prolonged use, leaks can easily occur at the connection between the gas bladder and the outer shell, compromising the seal of this connection. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an energy accumulator that can increase the sealing performance of the airbag connection.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An energy storage device includes a housing, an installation tube disposed on the upper part of the housing, and a liquid exchange tube disposed on the lower part of the housing. An inner tube is disposed in the middle of the installation tube, and a support plate is disposed at the lower part of the inner tube. A first outer tube is threadedly connected to the inner tube. A pressure plate corresponding to the support plate is disposed on the first outer tube. An air bladder is sleeved on the outside of the support plate, and the pressure plate presses on the outside of the air bladder. A stepped hole is disposed inside the installation tube. A sealing tube is disposed on the first outer tube. The first outer tube and the sealing tube are disposed in the stepped hole. An upper plate is threadedly connected to the inner tube.

[0007] Furthermore, the airbag and the support plate are bonded together with adhesive.

[0008] Furthermore, the airbag and the pressure plate are bonded together with adhesive.

[0009] Furthermore, the diameter of the first outer tube is larger than the diameter of the sealing tube.

[0010] Furthermore, a sealing sleeve is provided on the outside of the sealing tube.

[0011] Furthermore, a baffle is provided at the upper part of the mounting tube.

[0012] Furthermore, the upper plate is formed with multiple guide plates, each guide plate is provided with a guide hole, a slide rod is slidably connected in each guide hole, a stop bar is provided at the lower part of each slide rod, a screw is provided at the upper part of each slide rod, and a bolt is provided on each screw.

[0013] Furthermore, the upper plate is formed with multiple guide plates, each guide plate is provided with a guide hole, a slide rod is slidably connected in each guide hole, a stop bar is provided at the lower part of each slide rod, a round rod is rotatably connected to the upper part of each slide rod, and a spring frame is fixed between the upper part of each round rod and the corresponding guide plate.

[0014] Furthermore, a switch is installed inside the mounting tube, and a switch is installed inside the liquid exchange tube.

[0015] Furthermore, the supporting plate is a circular arc plate with the same center as the pressure plate.

[0016] The beneficial effects of this accumulator are: it can increase the sealing of the airbag connection and prevent the liquid in the accumulator from leaking; it can also assist the fit between the pressure plate of the airbag and the shell by the spring push or the locking force of the fastener, and prevent the liquid from leaking. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the energy storage device.

[0019] Figure 2 This is a partial cross-sectional view of the accumulator;

[0020] Figure 3 This is a partial sectional view of the outer casing;

[0021] Figure 4 A structural diagram for airbag installation;

[0022] Figure 5 A structural diagram showing the installation of the airbag;

[0023] Figure 6 To prevent Figure 4 The diagram shows the structure that has become detached from the outer shell.

[0024] Figure 7 This is a cross-sectional view of the structure of the airbag and its fixing airbag;

[0025] Figure 8 This is a schematic diagram of the structure for fixing the position of the airbag. Detailed Implementation

[0026] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] See details Figure 1 , 2 Examples 3, 4, and 5 detail embodiments for preventing liquid leakage during accumulator use:

[0028] The accumulator includes a housing 11, an installation pipe 12 at the top of the housing 11, and a liquid exchange pipe 13 at the bottom. An inner pipe 21 is located in the middle of the installation pipe 12, and a support plate 22 is located at the bottom of the inner pipe 21. A first outer pipe 24 is threadedly connected to the inner pipe 21, and a pressure plate 23 corresponding to the support plate 22 is located on the first outer pipe 24. An air bladder 26 is sleeved on the outside of the support plate 22, and the pressure plate 23 presses against the outside of the air bladder 26. A stepped hole 14 is provided inside the installation pipe 12, and a sealing pipe 25 is provided on the first outer pipe 24. The first outer pipe 24 and the sealing pipe 25 are located within the stepped hole 14. An upper plate 31 is threadedly connected to the inner pipe 21.

[0029] The outer shell 11 is divided into an upper shell and a lower shell, which are connected by welding. The liquid exchange tube 13 is integrally formed with the lower shell, and the mounting tube 12 is integrally formed with the upper shell. The liquid exchange tube 13 is used for the inflow and outflow of liquid. The mounting tube 12 is coaxial with the inner tube 21. The air bladder 26 is sleeved on the outside of the support plate 22, and the pressure plate 23 presses on the outside of the air bladder 26 to fix the air bladder 26. Gas is filled into the air bladder 26 and released through the inner tube 21. The outer side of the inner tube 21 is threaded. The first outer tube 24 is connected to the inner tube 21 through the internal thread. The position of the pressure plate 23 is adjusted by turning the first outer tube 24. The first outer tube 24 and the sealing tube 25 are set in the stepped hole 14 to seal the gap between the mounting tube 12 and the inner tube 21. The stepped contact surface inside the mounting tube 12 has better sealing performance than the two cylindrical contact surfaces.

[0030] The edge diameters of both the support plate 22 and the pressure plate 23 are larger than the maximum diameter of the stepped hole 14. The upper part of the pressure plate 23 is in contact with the inner wall of the outer casing 11, which can initially prevent the leakage of liquid filled into the outer casing 11. The contact between the first outer tube 24 and the stepped hole 14 can further prevent the leakage of liquid inside the outer casing 11, and the contact between the sealing tube 25 and the stepped hole 14 can further prevent the leakage of liquid inside the outer casing 11. Thus, the leakage of liquid inside the outer casing 11 is prevented multiple times, increasing the sealing performance of the liquid inside the accumulator and preventing the occurrence of liquid leakage that could affect the pressure of the liquid inside the accumulator.

[0031] The upper plate 31 can limit the upper part of the inner tube 21, thereby ensuring proper positioning of the inner tube 21 on the mounting tube 12 and preventing liquid leakage by ensuring proper contact between the upper plate 31 and the upper part of the mounting tube 12. The length of the axis of the sealing tube 25 is shorter than the length of the axis of the contacting circular hole, ensuring that the upper plate 31 can contact the short side of the mounting tube 12 when tightened. External threads can also be provided on the outside of the sealing tube 25, and internal threads can be machined at the position of the stepped hole 14 corresponding to the sealing tube 25, using the threads to connect and seal the sealing tube 25 to the stepped hole 14.

[0032] See details Figure 4 and 5 Detailed embodiments for preventing gas leakage from the airbag:

[0033] The airbag 26 is bonded to the support plate 22 with adhesive. The airbag 26 is also bonded to the pressure plate 23 with adhesive. This further enhances the strength and sealing performance of the airbag 26 installed between the support plate 22 and the pressure plate 23, preventing gas leakage from the airbag.

[0034] See details Figure 2 A detailed description of an embodiment in which the inner tube 21 can be installed inside the outer casing 11:

[0035] The diameter of the first outer tube 24 is larger than the diameter of the sealing tube 25. Therefore, after the first outer tube 24 and the sealing tube 25 are installed outside the inner tube 21, they can be inserted into the stepped hole 14 from the bottom. The first outer tube 24 and the sealing tube 25, which have different diameters, can fit fully with the stepped hole 14, increasing the sealing performance of the connection where the airbag 26 is installed and preventing leakage of liquid in the accumulator.

[0036] See details Figure 4 Detailed embodiments for improving the sealing performance at the connection of the sealing tube 25:

[0037] A sealing sleeve is provided on the outside of the sealing tube 25. The sealing sleeve can be a rubber ring or a sealing tape, so that the sealing tube 25 can be fully fitted with the stepped hole 14 through a small deformation of the sealing sleeve, thus preventing liquid leakage.

[0038] See details Figure 1 ,3 6. Detailed embodiments for increasing the installation area of ​​the mounting pipe 12:

[0039] A baffle 15 is provided on the upper part of the mounting tube 12. This increases the contact area between the upper plate 31 and the mounting tube 12 when the upper plate 31 is installed, thereby making the inner tube 21 more stable to be installed.

[0040] See details Figure 8 A detailed embodiment of the pressure plate 23 being attached to the inner wall of the outer casing 11 is provided below:

[0041] Multiple guide plates 32 are formed on the upper plate 31. Each guide plate 32 is provided with a guide hole. A slide rod 33 is slidably connected in each guide hole. A stop bar 35 is provided at the lower part of each slide rod 33. A screw 37 is provided at the upper part of each slide rod 33. A bolt 38 is provided on each screw 37.

[0042] The upper plate 31 and the guide plate 32 form an integrated structure, and each baffle 35 is attached to the lower part of the baffle 15. Tightening multiple nuts 38 drives the screw 37 and slide bar 33 to move, and the baffle 15 is fixed to the upper plate 31 by the baffle 35, thereby preventing the upper plate 31 from loosening during long-term use and affecting the fixation of the inner tube 21, the support plate 22 and the pressure plate 23, thus keeping the pressure plate 23 attached to the inner wall of the outer shell 11.

[0043] See details Figure 1 , 2 Sections 6 and 7 detail embodiments of the support plate 22 being attached to the inner wall of the outer casing 11:

[0044] Multiple guide plates 32 are formed on the upper plate 31. Each guide plate 32 is provided with a guide hole, and a slide rod 33 is slidably connected in each guide hole. A stop strip 35 is provided at the lower part of each slide rod 33, and a round rod 34 is rotatably connected to the upper part of each slide rod 33. A spring frame 36 is fixedly connected between the upper part of each round rod 34 and the corresponding guide plate 32. Under normal conditions, the multiple stop strips 35 are in contact with the lower part of the baffle plate 15.

[0045] When each baffle 35 is in contact with the lower part of the baffle 15, the spring force of the multiple spring brackets 36 pulls the corresponding guide plate 32 upward. The multiple guide plates 32 pull the upper plate 31 upward, the upper plate 31 drives the inner tube 21 upward, and the inner tube 21 drives the first outer tube 24 and the pressure plate 23 upward, keeping the pressure plate 23 in contact with the inner wall of the outer casing 11 to prevent liquid leakage. This also prevents the pressure plate 23 from failing to adhere to the outer casing 11 after long-term use, when the position of the upper plate 31 changes due to vibration, thus reducing the sealing performance of the liquid inside the outer casing 11.

[0046] When installing the upper plate 31, pressing down on multiple round rods 34 compresses the spring frame 36, allowing the multiple round rods 34 to align with the guide plate 32 and rotate. Then, rotating the slide rod 33 and the stop bar 35 causes the slide rod 33 to slide back into the guide hole, preventing the stop bar 35 from engaging with the baffle 15 and thus avoiding interference when the upper plate 31 is rotated, thus not affecting its installation. After the upper plate 31 is installed, pressing down on the round rods 34 and the spring frame 36 again, and then rotating the slide rod 33 and the stop bar 35 causes the slide rod 33 to slide back into the guide hole, causing the stop bar 35 to engage with the baffle 15. The spring frame 36 pulls the multiple guide plates 32 and the upper plate 31 upwards, thereby causing the inner tube 21 to engage with the pressure plate 23 and the inner wall of the outer casing 11.

[0047] See details Figure 1 and 2 Detailed examples of controlled gas filling and release:

[0048] A switch is installed inside the installation tube 12. By controlling the connection and disconnection of the installation tube 12, the filling and release of gas into the airbag 26 can be controlled.

[0049] See details Figure 1 and 2 Detailed examples of controlling the flow and cutoff of liquids:

[0050] A switch is installed inside the liquid exchange tube 13. The switch controls the connection and blockage of the liquid exchange tube 13, thereby controlling the flow and cut-off of the liquid.

[0051] See details Figure 2 , 4 5. A detailed description of embodiments that enhance the securing effect of the support plate 22 and pressure plate 23 on the airbag 26 and improve the sealing between the pressure plate 23 and the outer shell 11:

[0052] The support plate 22 and the pressure plate 23 are concentric arc plates, which allows the support plate 22 and the pressure plate 23 to fully fix the airbag, and the pressure plate 23 can fully fit against the inner wall of the outer shell 11, thereby increasing the sealing between the pressure plate 23 and the outer shell 11.

[0053] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An energy storage device, comprising a housing (11) and an installation pipe (12) disposed on the upper part of the housing (11) and a liquid exchange pipe (13) disposed on the lower part of the housing (11), characterized in that: The installation tube (12) has an inner tube (21) in the middle and a support plate (22) at the bottom. The inner tube (21) is connected to a first outer tube (24) by a thread. The first outer tube (24) is provided with a pressure plate (23) corresponding to the support plate (22). An airbag (26) is sleeved on the outside of the support plate (22). The pressure plate (23) presses on the outside of the airbag (26). The installation tube (12) has a stepped hole (14) inside. The first outer tube (24) is provided with a sealing tube (25). The first outer tube (24) and the sealing tube (25) are located in the stepped hole (14). The inner tube (21) is connected to an upper plate (31) by a thread.

2. The energy storage device according to claim 1, characterized in that: The airbag (26) and the support plate (22) are bonded together with glue.

3. The energy storage device according to claim 1, characterized in that: The airbag (26) and the pressure plate (23) are bonded together with glue.

4. The energy storage device according to claim 1, characterized in that: The diameter of the first outer tube (24) is greater than the diameter of the sealing tube (25).

5. The energy storage device according to claim 1, characterized in that: The sealing tube (25) is provided with a sealing sleeve on the outside.

6. The energy storage device according to claim 1, characterized in that: A baffle (15) is provided on the upper part of the installation tube (12).

7. The energy storage device according to claim 6, characterized in that: The upper plate (31) is formed with a plurality of guide plates (32), each guide plate (32) is provided with a guide hole, each guide hole is slidably connected with a slide rod (33), each slide rod (33) is provided with a stop bar (35) at the lower part, each slide rod (33) is provided with a screw (37) at the upper part, and each screw (37) is provided with a bolt (38).

8. The energy storage device according to claim 6, characterized in that: The upper plate (31) is formed with a plurality of guide plates (32), each guide plate (32) is provided with a guide hole, a slide rod (33) is slidably connected in each guide hole, a stop bar (35) is provided at the lower part of each slide rod (33), a round rod (34) is rotatably connected at the upper part of each slide rod (33), and a spring frame (36) is fixed between the upper part of each round rod (34) and the corresponding guide plate (32).

9. The energy storage device according to claim 1, characterized in that: A switch is provided inside the installation tube (12), and a switch is provided inside the liquid exchange tube (13).

10. The energy storage device according to claim 1, characterized in that: The support plate (22) is a pressure plate (23) and the pressure plate is a circular arc plate with the same center.

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