Mobile portable energy storage device

Abstract

The utility model discloses a mobile portable energy storage device, and relates to the technical field of portable energy storage devices. The device comprises a main frame structure, the main frame structure comprises two first supporting frames, sliding grooves are formed in the first supporting frames, a lifting assembly is arranged at the tops of the first supporting frames, a damping assembly is arranged at the bottoms of the first supporting frames, the lifting assembly comprises a motor, and the right side of the motor is fixedly connected with a two-way threaded rod through a coupler. By arranging the lifting assembly, a worker starts the motor to drive the two-way threaded rod to rotate forwards, the two-way threaded rod drives the first support to turn over upwards while rotating, at the moment, the energy storage tank ascends to achieve height adjustment, and the motor drives the two-way threaded rod to rotate reversely to drive the energy storage tank to descend. The height of the energy storage tank is adjustable, so that falling caused by too high centrifugal force of the energy storage tank is avoided, the stability of equipment is greatly improved, and unnecessary financial loss is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of portable energy storage devices, and particularly relates to a mobile portable energy storage device. Background Art

[0002] An energy storage tank is a container for storing energy, which is used to store energy when the power supply is sufficient or the electricity price is low, and release energy when needed to support the power grid or meet specific application requirements. At present, when most energy storage tanks are placed, due to the fact that their fixing devices cannot adjust the height of the energy storage tank, it is extremely inconvenient to use. Moreover, when the energy storage tank is transported, due to its excessive height, it is extremely unstable, greatly increasing the probability of equipment damage. In addition, the non-adjustable height of the energy storage tank greatly reduces the practicality of the equipment. For this reason, a mobile portable energy storage device is proposed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a mobile portable energy storage device. By setting a lifting component, specifically, the staff starts the motor to drive the bidirectional threaded rod to rotate forward. While the bidirectional threaded rod rotates, it drives the first bracket to perform an upward flipping movement. At this time, the energy storage tank realizes an upward movement to adjust the height, solving the problems that an energy storage tank is a container for storing energy, which is used to store energy when the power supply is sufficient or the electricity price is low, and release energy when needed to support the power grid or meet specific application requirements. At present, when most energy storage tanks are placed, due to the fact that their fixing devices cannot adjust the height of the energy storage tank, it is extremely inconvenient to use. Moreover, when the energy storage tank is transported, due to its excessive height, it is extremely unstable, greatly increasing the probability of equipment damage. In addition, the non-adjustable height of the energy storage tank greatly reduces the practicality of the equipment.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] The utility model is a mobile portable energy storage device, including a main frame structure. The main frame structure includes two first support frames. The connecting parts of the two first support frames are the same. A chute is opened inside the first support frame. A lifting component is arranged at the top of the first support frame. A shock absorption component is arranged at the bottom of the first support frame. The lifting component includes a motor. The right side of the motor is fixedly connected with a bidirectional threaded rod through a coupling. Two first brackets are arranged at the top of the first support frame. At the corresponding sides of the tops of the two first brackets, a second limiting bracket is fixedly connected. At the corresponding sides inside the two second limiting brackets, a second bracket is rotatably connected through a pin shaft. The staff starts the motor to work. The motor drives the bidirectional threaded rod to rotate forward. While the bidirectional threaded rod rotates, it drives two support blocks to approach each other. The first support rod drives the sliders to approach each other and slide inside the chute through the support blocks.

[0006] Further, one end of each of the two brackets away from the limiting bracket two is rotatably connected to a limiting bracket one through a pin shaft. A slider is fixedly connected to the bottom of each of the two limiting brackets one. Both of the two sliders are U-shaped. The outer surfaces of the two sliders are both slidably connected to the inside of the chute. A support plate is fixedly connected to the corresponding sides of the two support frames one. The left side of the support plate is fixedly connected to the right side of the motor. The inside of the support plate is rotatably connected to the outer surface of a bidirectional threaded rod. Two support blocks are arranged on the right side of the support plate. The two support blocks are arranged in a horizontal array. The parts connected by the two support blocks are the same. A support rod one is fixedly connected to the front and back of each of the support blocks. One side of each of the two support rods one away from each other is fixedly connected to the corresponding side of the slider. The inside of the two support blocks is threadedly connected to the outer surface of the bidirectional threaded rod. When the slider moves, it will drive the limiting bracket one to move. The bracket one will drive the limiting bracket two to move together through the movement of the limiting bracket one. The bracket one will perform an upward flipping movement through the limiting action of the limiting bracket two and the limiting bracket one. At this time, the energy storage tank will realize an upward movement and height adjustment through the movement of the bracket one.

[0007] Further, the number of the shock absorption components is four groups. The components included in the four groups of shock absorption components are the same. The shock absorption component includes a support rod two. The outer surface of the support rod two is in contact with the inside of the support frame one. A limiting plate two is fixedly connected to the top of the support rod two. A first spring is sleeved on the outer surface of the support rod two. The top of the first spring is fixedly connected to the top inner wall of the support frame one. The bottom of the first spring is fixedly connected to a limiting plate one. A limiting bracket three is fixedly connected to the bottom of the support rod two. The top of the limiting bracket three is in contact with the bottom of the limiting plate one. When the limiting bracket three moves, it will drive the support rod two and the limiting plate two to move together. At the same time, the movement of the limiting bracket three will drive the limiting plate one to move and compress the first spring. The first spring will contract under the limiting action of the support frame one. At the same time, the first spring will generate a certain resilience force to counteract the force of the movement of the limiting bracket three.

[0008] Further, the inside of the limiting plate one is slidably connected to the outer surface of the support rod two. A wheel is rotatably connected to the inside of the limiting bracket three through a pin shaft. A support frame two is fixedly connected to the side of the limiting bracket three away from the support frame one. A pedal two is rotatably connected to the inside of the support frame two through a pin shaft. A second resisting plate is fixedly connected to the side of the pedal two close to the limiting bracket three. A third spring is fixedly connected to the bottom of the second resisting plate. When the equipment needs to be static, at this time, the staff can step on the pedal two downward to drive the second resisting plate to move. When the second resisting plate moves, it will contact the bottom of the first resisting plate.

[0009] Further, the bottom of the third spring is fixedly connected to the top of the second support frame. A resisting rod is fixedly connected to the bottom of the second pedal. A friction pad is fixedly connected to the side of the resisting rod close to the wheel. The side of the friction pad close to the wheel is arc-shaped. The side of the friction pad away from the resisting rod contacts the outer surface of the wheel. The first resisting plate will be reset by the tension of the second spring and fix the second resisting plate. At the same time, the movement of the second pedal will drive the movement of the resisting rod. The friction pad will contact the wheel through the movement of the resisting rod and generate a certain amount of frictional force to fix the wheel and stop it from rotating.

[0010] Further, a rotating shaft is rotatably connected inside the second support frame. A first resisting plate is arranged on the top of the second resisting plate. A convex block is arranged on the bottom of the first resisting plate. The outer surface of the convex block contacts the top of the outer surface of the second resisting plate. The front and back tops of the first resisting plate are fixedly connected to the front and back of the outer surface of the first limiting plate. A second spring is fixedly connected to the bottom of the first resisting plate. The bottom of the second spring is fixedly connected to the top of the second support frame. A first pedal is arranged on the front of the second support frame. The bottom inside the first pedal is fixedly connected to the outer surface of the rotating shaft. When it is necessary to relax the wheel, the staff can step on the first pedal downward to drive the first resisting plate to perform an upward flipping movement.

[0011] Further, an energy storage tank is arranged on the tops of the two first support frames. Fixed sleeve shafts are fixedly connected to the front and back of the outer surface of the energy storage tank. The left and right sides of the outer surfaces of the two fixed sleeve shafts are fixedly connected to the corresponding sides of the second support.

[0012] The utility model has the following beneficial effects:

[0013] By setting the lifting assembly in the utility model, specifically, the staff starts the motor to drive the bidirectional threaded rod to rotate forward. While the bidirectional threaded rod rotates, it drives the first support to perform an upward flipping movement. At this time, the energy storage tank realizes an upward movement to adjust the height. The motor drives the bidirectional threaded rod to rotate reversely to drive the energy storage tank to descend. The adjustable height of the energy storage tank avoids the drop caused by excessive centrifugal force of the energy storage tank, greatly improves the stability of the equipment, and greatly reduces unnecessary financial losses.

[0014] By setting the shock absorption assembly in the utility model, specifically, when the wheel rotates, it will be affected by force and drive the third limiting support to move upward. The first spring will generate a certain amount of resilience and counteract the force of the movement of the third limiting support, playing a certain buffering role to achieve the shock absorption effect and avoiding the damage of the equipment due to bumps during transportation. When the equipment needs to be static, at this time, the staff can step on the second pedal downward to drive the friction pad to contact the wheel and generate a certain amount of frictional force to fix the wheel and stop it from rotating, avoiding the movement of the equipment due to gravity, and greatly improving the safety of the equipment.

[0015] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 Schematic diagram of the overall structure of the bidirectional threaded rod of the present utility model;

[0019] Figure 3 Schematic diagram of the overall structure of the third limiting bracket of the present utility model;

[0020] Figure 4 Schematic diagram of the overall structure of the first spring of the present utility model;

[0021] Figure 5 Schematic diagram of the sectional structure of the second pedal of the present utility model.

[0022] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Main frame structure; 111. First support frame; 112. Energy storage tank; 113. Fixed sleeve shaft; 114. Chute; 2. Lifting assembly; 211. Motor; 212. Slide block; 213. First limiting bracket; 214. First bracket; 215. Support plate; 216. Bidirectional threaded rod; 217. Second limiting bracket; 218. Second bracket; 219. Support block; 220. First support rod; 3. Shock absorption assembly; 311. Third limiting bracket; 312. First limiting plate; 313. Second limiting plate; 314. Second support rod; 315. First spring; 316. First abutting plate; 317. Second support frame; 318. First pedal; 319. Wheel; 320. Second spring; 321. Second pedal; 322. Abutting rod; 323. Rotating shaft; 324. Friction pad; 325. Second abutting plate; 326. Third spring. DETAILED IMPLEMENTATION MANNER

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 As shown, the present utility model is a mobile portable energy storage device, including a main frame structure 1. The main frame structure 1 includes two support frames 111. The parts connected by the two support frames 111 are the same. A chute 114 is provided inside the support frame 111. A lifting assembly 2 is provided at the top of the support frame 111, and a shock absorption assembly 3 is provided at the bottom of the support frame 111. The lifting assembly 2 includes a motor 211. A bidirectional threaded rod 216 is fixedly connected to the right side of the motor 211 through a coupling. Two support brackets 214 are provided at the top of the support frame 111. At the corresponding sides of the tops of the two support brackets 214, a limit bracket 217 is fixedly connected. At the corresponding sides inside the two limit brackets 217, a support bracket 218 is rotatably connected through a pin shaft. Specifically, when the staff starts the motor 211 to drive the bidirectional threaded rod 216 to rotate forward, the bidirectional threaded rod 216 drives the support bracket 214 to perform an upward flipping movement while rotating. At this time, the energy storage tank 112 realizes an upward movement to adjust the height. The motor 211 drives the bidirectional threaded rod 216 to rotate in reverse to drive the energy storage tank 112 to descend. The adjustable height of the energy storage tank 112 avoids the drop caused by too high centrifugal force of the energy storage tank 112, greatly improves the stability of the equipment, and greatly reduces unnecessary financial losses.

[0026] One end of each of the two support brackets 214 away from the limit bracket 217 is rotatably connected to a limit bracket 213 through a pin shaft. A slider 212 is fixedly connected to the bottom of each of the two limit brackets 213. The two sliders 212 are both U-shaped. The outer surfaces of the two sliders 212 are slidably connected to the inside of the chute 114. A support plate 215 is fixedly connected to the corresponding sides of the two support frames 111. The left side of the support plate 215 is fixedly connected to the right side of the motor 211. The inside of the support plate 215 is rotatably connected to the outer surface of the bidirectional threaded rod 216. Two support blocks 219 are provided on the right side of the support plate 215. The two support blocks 219 are arranged in a horizontal array. The parts connected by the two support blocks 219 are the same. A support rod 220 is fixedly connected to the front and back of each of the support blocks 219. The mutually remote sides of the two support rods 220 are fixedly connected to the corresponding sides of the slider 212. The inside of the two support blocks 219 is threadedly connected to the outer surface of the bidirectional threaded rod 216.

[0027] There are four shock-absorbing components 3, and the components included in the four shock-absorbing components 3 are the same. The shock-absorbing component 3 includes a second support rod 314. The outer surface of the second support rod 314 is in contact with the inside of the first support frame 111. A second limiting plate 313 is fixedly connected to the top of the second support rod 314. A first spring 315 is sleeved on the outer surface of the second support rod 314. The top of the first spring 315 is fixedly connected to the top inner wall of the first support frame 111. The bottom of the first spring 315 is fixedly connected to a first limiting plate 312. A third limiting bracket 311 is fixedly connected to the bottom of the second support rod 314. The top of the third limiting bracket 311 is in contact with the bottom of the first limiting plate 312. Specifically, when the wheel 319 rotates, it will be affected by force and drive the third limiting bracket 311 to move upward. The first spring 315 will generate a certain resilience force to counteract the force of the movement of the third limiting bracket 311, playing a certain buffering role to achieve the shock-absorbing effect and avoiding damage to the equipment caused by bumps during transportation. When the equipment needs to be stationary, at this time, the staff can step on the second pedal 321 downward to drive the friction pad 324 to contact the wheel 319 and generate a certain frictional force, so that the wheel 319 is fixed and no longer rotates, avoiding the movement of the equipment due to gravity and greatly improving the safety of the equipment.

[0028] The inside of the first limiting plate 312 is slidably connected to the outer surface of the second support rod 314. A wheel 319 is rotatably connected to the inside of the third limiting bracket 311 through a pin shaft. A second support frame 317 is fixedly connected to the side of the third limiting bracket 311 away from the first support frame 111. A second pedal 321 is rotatably connected to the inside of the second support frame 317 through a pin shaft. A second abutting plate 325 is fixedly connected to the side of the second pedal 321 close to the third limiting bracket 311. A third spring 326 is fixedly connected to the bottom of the second abutting plate 325.

[0029] The bottom of the third spring 326 is fixedly connected to the top of the second support frame 317. A resisting rod 322 is fixedly connected to the bottom of the second pedal 321. A friction pad 324 is fixedly connected to the side of the resisting rod 322 close to the wheel 319. The side of the friction pad 324 close to the wheel 319 is arc-shaped. The side of the friction pad 324 away from the resisting rod 322 is in contact with the outer surface of the wheel 319.

[0030] A rotating shaft 323 is rotatably connected to the inside of the second support frame 317. A first abutting plate 316 is arranged on the top of the second abutting plate 325. A convex block is arranged on the bottom of the first abutting plate 316. The outer surface of the convex block is in contact with the top outer surface of the second abutting plate 325. The front and back tops of the first abutting plate 316 are fixedly connected to the front and back outer surfaces of the first limiting plate 312. A second spring 320 is fixedly connected to the bottom of the first abutting plate 316. The bottom of the second spring 320 is fixedly connected to the top of the second support frame 317. A first pedal 318 is arranged on the front of the second support frame 317. The inner bottom of the first pedal 318 is fixedly connected to the outer surface of the rotating shaft 323.

[0031] There is an energy storage tank 112 provided at the top of the two support frames 111. Fixed sleeve shafts 113 are fixedly connected to both the front and back of the outer surface of the energy storage tank 112. The left and right sides of the outer surfaces of the two fixed sleeve shafts 113 are fixedly connected to the corresponding sides of the second support 218.

[0032] A specific application of this embodiment is as follows: When in use, first, the staff starts the motor 211 to work. The operation of the motor 211 drives the bidirectional threaded rod 216 to rotate forward. While the bidirectional threaded rod 216 rotates, it drives two support blocks 219 to approach each other. As the first support rod 220 approaches through the support blocks 219, it drives the sliders 212 to approach each other and slide inside the chute 114. While the sliders 212 move, they drive the first limiting bracket 213 to move together. The first bracket 214 drives the second limiting bracket 217 to move together through the movement of the first limiting bracket 213. The first bracket 214 performs an upward flipping movement under the limiting action of the second limiting bracket 217 and the first limiting bracket 213. At this time, the energy storage tank 112 realizes an upward movement and height adjustment through the movement of the first bracket 214. When the energy storage tank 112 needs to be adjusted downward, it is only necessary to drive the bidirectional threaded rod 216 to rotate reversely by the motor 211. The adjustable height of the energy storage tank 112 greatly improves the stability of the equipment and greatly reduces unnecessary financial losses. When the equipment needs to be transported, wheels 319 are provided at its bottom. When the wheels 319 rotate, they are affected by force and drive the third limiting bracket 311 to move upward. When the third limiting bracket 311 moves, it drives the second support rod 314 and the second limiting plate 313 to move together. At the same time, the movement of the third limiting bracket 311 drives the first limiting plate 312 to move together and squeeze the first spring 315. The first spring 315 is restricted by the first support frame 111 and contracts. At the same time, the first spring 315 generates a certain resilience force that counteracts the force of the movement of the third limiting bracket 311, playing a certain buffering role to achieve the shock absorption effect and avoid damage to the equipment caused by jolting during transportation. When the equipment needs to be stationary, at this time, the staff steps on the second pedal 321 downward to drive the second abutting plate 325 to move. While the second abutting plate 325 moves, it contacts the bottom of the first abutting plate 316. When the first abutting plate 316 is affected by force, since the rotating shaft 323 is semicircularly arranged and plays a certain limiting role, the first abutting plate 316 will perform an upward flipping movement and generate a certain pulling force on the second spring 320. When the second abutting plate 325 passes below the first abutting plate 316, the first abutting plate 316 will be reset by the pulling force of the second spring 320 and fix the second abutting plate 325. At the same time, the movement of the second pedal 321 drives the abutting rod 322 to move. The friction pad 324 contacts the wheel 319 through the movement of the abutting rod 322 and generates a certain frictional force to fix the wheel 319 and prevent it from rotating, avoiding the movement of the equipment due to gravity and greatly improving the safety of the equipment. When it is necessary to release the wheel 319, the staff steps on the first pedal 318 downward to drive the first abutting plate 316 to perform an upward flipping movement together.

[0033] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A mobile portable energy storage device, comprising a main frame structure (1), the main frame structure (1) including two first support frames (111), the parts connected by the two first support frames (111) being the same, a chute (114) being provided inside the first support frame (111), a lifting assembly (2) being provided at the top of the first support frame (111), and a shock absorption assembly (3) being provided at the bottom of the first support frame (111), characterized in that: The lifting assembly (2) includes a motor (211), a bidirectional threaded rod (216) being fixedly connected to the right side of the motor (211) through a coupling. Two first brackets (214) are provided at the top of the first support frame (111). At one side corresponding to each other at the top of the two first brackets (214), a second limiting bracket (217) is fixedly connected. At one side corresponding to each other inside the two second limiting brackets (217), a second bracket (218) is rotatably connected through a pin shaft.

2. The mobile portable energy storage device according to claim 1, characterized in that At one end of the two first brackets (214) away from the second limiting bracket (217), a first limiting bracket (213) is rotatably connected through a pin shaft. At the bottom of the two first limiting brackets (213), a slider (212) is fixedly connected. The two sliders (212) are both U-shaped. The outer surfaces of the two sliders (212) are both slidably connected to the inside of the chute (114). At one side corresponding to each other of the two first support frames (111), a support plate (215) is fixedly connected. The left side of the support plate (215) is fixedly connected to the right side of the motor (211). The inside of the support plate (215) is rotatably connected to the outer surface of the bidirectional threaded rod (216). Two support blocks (219) are provided on the right side of the support plate (215).

3. A mobile portable energy storage device according to claim 2, wherein, The two support blocks (219) are arranged in a horizontal array, the parts connected by the two support blocks (219) being the same. A first support rod (220) is fixedly connected to the front and back of each of the two support blocks (219). At one side of the two first support rods (220) away from each other, the side corresponding to the slider (212) is fixedly connected. The inside of the two support blocks (219) is threadedly connected to the outer surface of the bidirectional threaded rod (216).

4. A mobile portable energy storage device according to claim 3, characterized in that, The shock absorption assembly (3) has four groups, the components included in the four groups of shock absorption assemblies (3) being the same. The shock absorption assembly (3) includes a second support rod (314), the outer surface of the second support rod (314) being in contact with the inside of the first support frame (111). A second limiting plate (313) is fixedly connected to the top of the second support rod (314). A first spring (315) is sleeved on the outer surface of the second support rod (314). The top of the first spring (315) is fixedly connected to the top inner wall of the first support frame (111). The bottom of the first spring (315) is fixedly connected to a first limiting plate (312). A third limiting bracket (311) is fixedly connected to the bottom of the second support rod (314), and the top of the third limiting bracket (311) is in contact with the bottom of the first limiting plate (312).

5. A mobile portable energy storage device according to claim 4, characterized in that, The inner part of the first limiting plate (312) is slidably connected to the outer surface of the second support rod (314). A wheel (319) is rotatably connected inside the third limiting bracket (311) through a pin shaft. A second support frame (317) is fixedly connected to the side of the third limiting bracket (311) away from the first support frame (111). A second pedal (321) is rotatably connected inside the second support frame (317) through a pin shaft. A second abutting plate (325) is fixedly connected to the side of the second pedal (321) close to the third limiting bracket (311). A third spring (326) is fixedly connected to the bottom of the second abutting plate (325).

6. A mobile portable energy storage device according to claim 5, characterized in that, The bottom of the third spring (326) is fixedly connected to the top of the second support frame (317). A resisting rod (322) is fixedly connected to the bottom of the second pedal (321). A friction pad (324) is fixedly connected to the side of the resisting rod (322) close to the wheel (319). The side of the friction pad (324) close to the wheel (319) is arc-shaped. The side of the friction pad (324) away from the resisting rod (322) is in contact with the outer surface of the wheel (319).

7. A mobile portable energy storage device according to claim 6, characterized in that, A rotating shaft (323) is rotatably connected inside the second support frame (317). A first abutting plate (316) is arranged on the top of the second abutting plate (325). A convex block is arranged on the bottom of the first abutting plate (316). The outer surface of the convex block is in contact with the top of the outer surface of the second abutting plate (325). The front and back tops of the first abutting plate (316) are fixedly connected to the front and back of the outer surface of the first limiting plate (312). A second spring (320) is fixedly connected to the bottom of the first abutting plate (316). The bottom of the second spring (320) is fixedly connected to the top of the second support frame (317). A first pedal (318) is arranged on the front of the second support frame (317). The inner bottom of the first pedal (318) is fixedly connected to the outer surface of the rotating shaft (323).

8. A mobile portable energy storage device according to claim 7, wherein An energy storage tank (112) is arranged on the top of the two first support frames (111). Fixed sleeve shafts (113) are fixedly connected to the front and back of the outer surface of the energy storage tank (112). The left and right sides of the outer surfaces of the two fixed sleeve shafts (113) are fixedly connected to the corresponding sides of the second support (218).

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