An energy storage pressure regulating mechanism

Abstract

This application discloses an accumulator pressure regulating mechanism, relating to the field of accumulators. It includes an accumulator body, an air bladder, an mounting tube, an exhaust assembly, and an inflation assembly. When the pressure inside the air bladder increases, it causes the sealing disc to compress the spring, allowing the exhaust hole on the outer surface of the mounting tube to leak out, thus venting the excessively pressurized gas and reducing the internal gas pressure. As needed, the rotating block can be rotated, moving through the engagement of an internal and external threaded tube to adjust the preload of the compression spring. This changes the force exerted by the compression spring on the sealing disc against the mounting tube, adjusting the internal pressure to the threshold required for exhaust. When the pressure inside the air bladder is too low, the liquid pressure inside the storage tank causes the push rod to move into the mounting tube, changing the pressure sensor reading. This, in turn, activates the air pump via a control component, inflating the air bladder through the inflation tube to regulate the internal pressure.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to an energy storage pressure regulating mechanism. Background Technology

[0002] An accumulator is a device that stores energy in some form and releases it when needed. In use, energy is stored through an oil pipe connected to the bottom. When the oil pipe, which carries a certain pressure, flows, the oil moves the air bladder inside the accumulator to move in and out, thereby storing energy. When the oil pressure decreases, the air bladder resets to push the liquid, thereby maintaining the pressure of the hydraulic system and keeping the pressure stable.

[0003] Existing accumulators require internal airbags to store and release energy during use. Before use, the internal pressure of the airbags needs to be adjusted according to the usage scenario and the specified pressure of the connected hydraulic system. After adjusting the internal pressure of the airbags to the specified pressure, stable energy storage and release can be achieved.

[0004] When an accumulator is in use, the pressure inside the air bladder changes with the temperature due to the influence of the external environment. This results in reduced energy recovery efficiency when the air bladder pressure is too low, and increased friction between the air bladder and the inner wall of the accumulator tank when the air bladder pressure is too high, leading to a reduction in the lifespan of the air bladder. Existing accumulators cannot adjust the air bladder pressure at any time during use, making them inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides an energy storage pressure regulating mechanism.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: an accumulator pressure regulating mechanism, including an accumulator body, an air bladder is provided inside the accumulator body, an installation tube is fixedly connected to the top of the accumulator body, an exhaust component is provided on the outer surface of the installation tube, and an inflation component is provided on the outer surface of the installation tube.

[0009] An inflation assembly includes a fixed box fixedly connected to the outer surface of an installation tube, a push rod inserted inside the fixed box, a movable disc fixedly connected to one end of the push rod near the installation block, a liquid storage tank on the side of the fixed box away from the movable disc, an inflation tube on the upper surface of the fixed box, a connecting disc fixedly connected to the outer surface of the push rod, and a tension spring fixedly connected between the connecting disc and the side of the inner wall of the fixed box away from the installation tube.

[0010] The exhaust assembly includes an externally threaded pipe fixedly connected to the outer surface of a mounting pipe, an internally threaded pipe meshing with the outer surface of the externally threaded pipe, a rotating block fixedly connected to the end of the internally threaded pipe away from the mounting pipe, a sliding block provided on the side of the rotating block close to the mounting pipe, a sealing disc provided inside the externally threaded pipe, and a compression spring fixedly connected between the sealing disc and the sliding block.

[0011] In a preferred embodiment of the accumulator pressure regulating mechanism of this utility model, the inner side of the mounting tube is provided with a circular groove that cooperates with the movable disc, and the inner wall of the circular groove is provided with a circular hole that cooperates with the push rod.

[0012] In a preferred embodiment of the accumulator pressure regulating mechanism of this utility model, a fixing block is fixedly connected to the side of the fixing box away from the mounting pipe, and the side of the fixing block away from the mounting pipe is fixedly connected to the outer surface of the liquid storage tank. A through hole that cooperates with the push rod is opened inside the fixing block.

[0013] In a preferred embodiment of the accumulator pressure regulating mechanism of this utility model, a limiting plate is fixedly connected to the outer surface of the push rod, and a heat insulation layer is provided on the outer surface of the liquid storage tank.

[0014] In a preferred embodiment of the accumulator pressure regulating mechanism of this utility model, a connecting block is fixedly connected to the side of the sliding block away from the mounting pipe, a limiting disk is fixedly connected to the side of the connecting block away from the mounting pipe, and a limiting groove is provided on the side of the rotating block close to the mounting pipe to cooperate with the connecting block and the limiting disk.

[0015] In a preferred embodiment of the accumulator pressure regulating mechanism of this utility model, the outer surface of the mounting block is provided with an exhaust hole that mates with the sealing disc, and the outer surface of the external threaded pipe is provided with a through hole for exhaust.

[0016] In a preferred embodiment of the accumulator pressure regulating mechanism of this utility model, an air pump is connected to the top of the inflation pipe, a pressure sensor is provided between the tension spring and the inner wall of the fixed box, and the pressure sensor is electrically connected to a control component.

[0017] (III) Beneficial Effects

[0018] This utility model provides a pressure regulating mechanism for an energy accumulator. It has the following beneficial effects:

[0019] 1. When the pressure inside the airbag increases, it causes the sealing disc to squeeze the compression spring, causing the exhaust hole on the outer surface of the mounting tube to leak out, thus venting the excessively pressurized gas and reducing the internal gas pressure. As needed, the rotating block can be rotated to move through the cooperation of the internal and external threaded tubes, thereby adjusting the preload of the compression spring. This changes the force with which the compression spring squeezes the sealing disc against the exhaust hole on the outer surface of the mounting tube, thus adjusting the internal pressure to the threshold required for venting.

[0020] 2. When the pressure inside the airbag is too low, the liquid pressure inside the reservoir will cause the push rod to move into the installation tube, thereby changing the reading of the pressure sensor. This will then start the air pump through the control component, inflating the airbag through the inflation tube and thus regulating the pressure inside the airbag. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is an exploded structural diagram of the exhaust assembly of this utility model.

[0024] Figure 3 This is a cross-sectional structural diagram of the entire utility model.

[0025] Figure 4 This is a utility model Figure 3 A magnified structural diagram of point A in the middle.

[0026] In the diagram, 1. Accumulator body; 2. Exhaust assembly; 201. Rotating block; 202. Internally threaded pipe; 203. Sliding block; 204. Compression spring; 205. Sealing plate; 206. Externally threaded pipe; 207. Connecting block; 208. Limiting plate; 3. Mounting pipe; 4. Inflation assembly; 401. Inflation pipe; 402. Movable plate; 403. Fixed box; 404. Limiting plate; 405. Push rod; 406. Heat insulation layer; 407. Liquid storage tank; 408. Fixed block; 409. Tension spring; 410. Connecting plate. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Reference Figure 1 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides an accumulator pressure regulating mechanism, including an accumulator body 1, an air bladder 5 inside the accumulator body 1, an installation tube 3 fixedly connected to the top of the accumulator body 1, an exhaust assembly 2 on the outer surface of the installation tube 3, and an inflation assembly 4 on the outer surface of the installation tube 3. The inflation assembly 4 includes a fixed box 403 fixedly connected to the outer surface of the installation tube 3, a push rod 405 inserted inside the fixed box 403, a movable disc 402 fixedly connected to one end of the push rod 405 near the installation block, a liquid storage tank 407 on the side of the fixed box 403 away from the movable disc 402, an inflation tube 401 on the upper surface of the fixed box 403, a connecting disc 410 fixedly connected to the outer surface of the push rod 405, and a tension spring 409 fixedly connected between the connecting disc 410 and the side of the inner wall of the fixed box 403 away from the installation tube 3.

[0030] Specifically, the inner side of the mounting tube 3 is provided with a circular groove that mates with the movable plate 402. The inner wall of the circular groove is provided with a circular hole that mates with the push rod 405. A fixing block 408 is fixedly connected to the side of the fixed box 403 away from the mounting tube 3. The side of the fixing block 408 away from the mounting tube 3 is fixedly connected to the outer surface of the liquid storage tank 407. A through hole that mates with the push rod 405 is provided inside the fixing block 408. A limit plate 404 is fixedly connected to the outer surface of the push rod 405. A heat insulation layer 406 is provided on the outer surface of the liquid storage tank 407. An air pump is connected to the top of the mounting tube 3 through a circular tube. A monitoring component for monitoring internal pressure is provided between the circular tube and the air supply component. The top of the air inflator 401 is connected to the same air pump. A pressure sensor is provided between the tension spring 409 and the inner wall of the fixed box 403. The pressure sensor is electrically connected to a control component.

[0031] Furthermore, during the inflation process, due to the characteristic that gas pressure is affected by volume, the inflation tube 401 is inflated by continuously supplying air into the fixed box 403. Once a certain limit is exceeded, the movable disc 402 moves inside the mounting tube 3, opening the round hole and expelling the gas from inside the fixed box 403. During the brief period of gas expulsion, the fixed box 403 and the inside of the mounting tube 3 (i.e., the airbag 5) are in communication. Therefore, under the reset action of the tension spring 409, the movable disc 402 re-seals the round groove and round hole on the inner wall of the mounting tube 3. The liquid storage tank 407 stores a liquid substance with a high specific heat capacity. With the addition of the heat insulation layer 406, the liquid pressure inside the liquid storage tank 407 is not easily changed under normal use. The connection relationship, working principle, and operation sequence between the air pump, pressure sensor, control components, and other components are existing technologies and are common knowledge known to those skilled in the art, and will not be elaborated further here.

[0032] Example 2

[0033] Reference Figure 1 and Figure 2 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The exhaust assembly 2 includes an externally threaded pipe 206 fixedly connected to the outer surface of the mounting pipe 3. An internally threaded pipe 202 is engaged with the outer surface of the externally threaded pipe 206. A rotating block 201 is fixedly connected to the end of the internally threaded pipe 202 away from the mounting pipe 3. A sliding block 203 is provided on the side of the rotating block 201 close to the mounting pipe 3. A sealing disc 205 is provided inside the externally threaded pipe 206. A compression spring 204 is fixedly connected between the sealing disc 205 and the sliding block 203.

[0034] Specifically, a connecting block 207 is fixedly connected to the side of the sliding block 203 away from the mounting pipe 3, and a limiting disk 208 is fixedly connected to the side of the connecting block 207 away from the mounting pipe 3. A limiting groove that cooperates with the connecting block 207 and the limiting disk 208 is opened on the side of the rotating block 201 close to the mounting pipe 3. An exhaust hole that cooperates with the sealing disk 205 is opened on the outer surface of the mounting block, and a through hole for exhaust is opened on the outer surface of the external threaded pipe 206.

[0035] Furthermore, as the ambient temperature changes, the airbag 5's temperature rises, causing the internal pressure of the airbag 5 to increase. At this time, the sealing disc 205 compresses the compression spring 204, causing the exhaust hole on the outer surface of the mounting tube 3 to leak out, thus expelling the excessively pressurized gas and reducing the internal gas pressure. This prevents friction between the airbag 5 and the inner wall of the accumulator body 1. As needed, the rotating block 201 can be rotated to move the internal threaded tube 202 on the outer surface of the external threaded tube 206. This movement of the rotating block 201 causes the sliding block 203 to compress the compression spring 204, adjusting the preload of the compression spring 204. This changes the pressure exerted by the compression spring 204 on the sealing disc 205 against the exhaust hole on the outer surface of the mounting tube 3, allowing for control of the airbag 5's internal pressure. When the pressure exceeds a specified range, the compression spring 204 is compressed, thus venting the gas.

[0036] Working Principle: When using the accumulator, the temperature of the airbag 5 rises due to changes in the ambient temperature, causing the internal pressure of the airbag 5 to increase. This, in turn, causes the sealing disc 205 to compress the spring 204, resulting in the exhaust hole on the outer surface of the mounting tube 3 releasing excessively pressurized gas. This reduces the internal gas pressure and prevents friction between the airbag 5 and the inner wall of the accumulator body 1. Furthermore, as needed, rotating the rotating block 201 moves the internal threaded tube 202 across the outer surface of the external threaded tube 206. This movement of the rotating block 201 causes the sliding block 203 to compress the spring 204, adjusting the preload of the spring 204. This, in turn, changes the pressure exerted by the spring 204 on the sealing disc 205, causing it to compress the exhaust hole on the outer surface of the mounting tube 3. The pressure is adjusted to control the gas pressure inside the airbag 5. When the pressure exceeds a specified range, the compression spring 204 is compressed to release the gas. When the pressure inside the airbag 5 is too low, the liquid pressure inside the reservoir 407 causes the push rod 405 to move into the mounting tube 3, thereby changing the reading of the pressure sensor. This activates the air pump via the control component, inflating the airbag through the inflation tube 401. As the gas pressure inside the fixed box 403 increases, the push rod 405 moves into the mounting tube 3, opening the circular groove and the circular hole on the inner wall of the groove inside the mounting tube 3. This allows the inflation tube 401 to inflate the airbag 5 through the circular hole. When the gas pressure inside the airbag 5 reaches the specified pressure, the pressure inside the airbag 5 is adjusted, ultimately achieving the goal of regulating the pressure inside the airbag 5.

[0037] 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. An accumulator pressure regulating mechanism comprising an accumulator body (1), characterized by: An airbag (5) is provided inside the accumulator body (1). An installation tube (3) is fixedly connected to the top of the accumulator body (1). An exhaust assembly (2) is provided on the outer surface of the installation tube (3). An inflation assembly (4) is provided on the outer surface of the installation tube (3). The inflation assembly (4) includes a fixed box (403) fixedly connected to the outer surface of the mounting tube (3). A push rod (405) is inserted inside the fixed box (403). A movable disc (402) is fixedly connected to one end of the push rod (405) near the mounting block. A liquid storage tank (407) is provided on the side of the fixed box (403) away from the movable disc (402). An inflation tube (401) is provided on the upper surface of the fixed box (403). A connecting disc (410) is fixedly connected to the outer surface of the push rod (405). A tension spring (409) is fixedly connected between the connecting disc (410) and the side of the inner wall of the fixed box (403) away from the mounting tube (3). The exhaust assembly (2) includes an externally threaded pipe (206) fixedly connected to the outer surface of the mounting pipe (3). An internally threaded pipe (202) is engaged with the outer surface of the externally threaded pipe (206). A rotating block (201) is fixedly connected to one end of the internally threaded pipe (202) away from the mounting pipe (3). A sliding block (203) is provided on the side of the rotating block (201) close to the mounting pipe (3). A sealing disc (205) is provided inside the externally threaded pipe (206). A compression spring (204) is fixedly connected between the sealing disc (205) and the sliding block (203).

2. An accumulator pressure regulating mechanism according to claim 1, characterized in that: The inner side of the mounting tube (3) is provided with a circular groove that cooperates with the movable disc (402), and the inner wall of the circular groove is provided with a circular hole that cooperates with the push rod (405).

3. An accumulator pressure regulating mechanism according to claim 2, characterized in that: The fixed box (403) is fixedly connected to a fixed block (408) on the side away from the installation pipe (3). The side of the fixed block (408) away from the installation pipe (3) is fixedly connected to the outer surface of the liquid storage tank (407). The fixed block (408) has a through hole inside that cooperates with the push rod (405).

4. An accumulator pressure regulating mechanism according to claim 3, characterized in that: The outer surface of the push rod (405) is fixedly connected to a limiting plate (404), and the outer surface of the liquid storage tank (407) is provided with a heat insulation layer (406).

5. An accumulator pressure regulating mechanism according to claim 4, characterized in that: The sliding block (203) is fixedly connected to a connecting block (207) on the side away from the mounting tube (3). The connecting block (207) is fixedly connected to a limiting plate (208) on the side away from the mounting tube (3). The rotating block (201) is provided with a limiting groove on the side close to the mounting tube (3) that cooperates with the connecting block (207) and the limiting plate (208).

6. A pressure regulating mechanism for an accumulator according to claim 5, wherein: The outer surface of the mounting block is provided with an exhaust hole that matches the sealing disc (205), and the outer surface of the external threaded pipe (206) is provided with a through hole for exhaust.

7. An accumulator pressure regulating mechanism according to claim 6, characterized in that: An air pump is connected to the top of the inflation tube (401), and a pressure sensor is provided between the tension spring (409) and the inner wall of the fixed box (403). The pressure sensor is electrically connected to a control component.

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