Energy storage device of stereo garage photovoltaic power generation system

Abstract

The invention discloses an energy storage device of a stereo garage photovoltaic power generation system, which comprises an energy storage box body, a box body fixing mechanism, a connecting line and a connecting line fixing protection device, and is characterized in that the energy storage box body is fixedly arranged on a floor through the box body fixing mechanism and is connected with a stereo garage control system through the connecting line; and the connecting line is arranged in the connecting line fixing and protecting device. The outer side of the connecting line is protected through the connecting line fixing and protecting device, the connecting line is prevented from making direct contact with an external high-salt and high-humidity environment, the aging speed of the connecting line is reduced, the connecting line is wrapped in the connecting line fixing and protecting device, and the problems of connecting line abrasion and dragging damage are solved.

Description

Technical Field

[0001] This invention relates to an energy storage device, particularly an energy storage device for a photovoltaic power generation system for a multi-level parking garage, and belongs to the field of energy storage technology. Background Technology

[0002] Multi-level parking garages can stack vehicles vertically, significantly saving land area for urban parking and becoming a major solution to parking problems in many large cities. Adding a photovoltaic (PV) power generation system to the roof of a multi-level parking garage not only effectively utilizes solar energy but also reduces the energy consumption of the garage itself. However, PV systems require energy storage devices, which occupy considerable space. When upgrading existing multi-level parking systems, the original control cabinet design often doesn't include space for large components like energy storage devices, necessitating external installation. External energy storage devices connect to the control cabinet via cables. Exposed cables are easily damaged by being stepped on or dragged by other objects. Furthermore, in cities near the coast with humid and salty air, exposed cables age faster. Additionally, to maximize installation space, energy storage devices are often installed in narrow corners or other confined spaces, resulting in limited maintenance space and inconvenient operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an energy storage device for a photovoltaic power generation system for a three-dimensional parking garage, thereby extending the service life of the connecting wires.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: An energy storage device for a photovoltaic power generation system for a multi-level parking garage includes an energy storage box, a box fixing mechanism, a connecting wire, and a connecting wire fixing and protection device. The energy storage box is fixedly mounted on the floor by the box fixing mechanism. The energy storage box is connected to the multi-level parking garage control system by the connecting wire, and the connecting wire is installed inside the connecting wire fixing and protection device.

[0005] Furthermore, the two ends of the connecting line are provided with male connectors, and the sides of the energy storage box and the control cabinet of the automated parking system are provided with female connectors. The two ends of the connecting line are respectively inserted into the female connectors on the side of the energy storage box and the control cabinet of the automated parking system.

[0006] Furthermore, the connecting line fixing protection device includes multiple fixing protection units. Each fixing protection unit includes a protective housing. The protective housing has a connecting line through hole along its length that matches the connecting line. The protective housing is sleeved on the outside of the connecting line through the connecting line through hole. One end of the protective housing is provided with a protrusion that protrudes from the end face of the protective housing, and the other end of the protective housing is provided with a recess that matches the protrusion. Two adjacent fixing protection units are arranged on the outside of the connecting line in the same direction. The protrusion of one fixing protection unit can be inserted into the recess of another fixing protection unit to connect and fix the two fixing protection units.

[0007] Furthermore, at least one side of the protrusion has a rectangular groove, and a wedge-shaped block structure is provided in the rectangular groove. The protective housing has levers in number and position matching the rectangular groove. The levers are hinged in the protective housing. One end of the lever is located in the recess at the other end of the protective housing, and the end of the lever is provided with a wedge-shaped surface matching the wedge-shaped block structure. The other end of the lever is provided with a reverse tooth structure facing the inside of the protective housing. The protective housing has a cavity for the lever to rotate. When the protrusion of one fixed protective unit is inserted into the recess of another fixed protective unit, the wedge-shaped block structure in the rectangular groove of one fixed protective unit pushes the wedge-shaped surface at one end of the lever of the other fixed protective unit, causing one end of the lever to rotate outward of the protective housing. The reverse tooth structure at the other end of the lever rotates inward of the protective housing and is locked on the outside of the protective line.

[0008] Furthermore, one end of the protective housing is provided with two connecting rods. The connecting rods are arranged along the length direction of the protective housing, and one end of the connecting rods is fixed to the upper side of the two side surfaces of the one end of the protective housing. The inner side of the other end of the connecting rod is provided with long teeth arranged along the length direction of the connecting rod. The upper side of the two side surfaces of the other end of the protective housing is provided with irregular grooves, including transverse grooves, circular grooves and longitudinal grooves. The transverse groove is arranged along the length direction of the protective housing, and one end of the transverse groove is connected to one side of the circular groove. The longitudinal groove is arranged along the thickness direction of the protective housing, and the upper end of the longitudinal groove is connected to the lower side of the circular groove. The groove width of the transverse groove and the longitudinal groove matches the thickness of the long teeth on the inner side of the connecting rod, and the inner diameter of the circular groove matches the length of the long teeth.

[0009] Furthermore, the lower ends of both sides of the protective housing are provided with fixing ears, and bolt holes are opened on the fixing ears.

[0010] Furthermore, the housing fixing mechanism includes two parallel guide rails, and the lower side of the energy storage housing has guide rail grooves that match the two guide rails. The lower side of the energy storage housing is slidably mounted on the two guide rails through the guide rail grooves. Four rollers are provided on the lower side of the energy storage housing, and the four rollers are respectively distributed at the four corners of the lower side of the energy storage housing.

[0011] Furthermore, a limit fixing block is provided at one end of the guide rail, and an arc-shaped guide surface is provided at the other end of the guide rail.

[0012] Furthermore, elastic guide rail pulley mechanisms are respectively provided at both ends of the guide rail groove. The elastic guide rail pulley mechanism includes two pulleys, a pulley bracket, a first elastic guide rod, a second elastic guide rod, a first spring, and a second spring. Pulley cavities are opened at both ends of the guide rail groove. The two pulleys are respectively rotatably arranged at both ends of the pulley bracket. The first elastic guide rod and the second elastic guide rod are vertically arranged, and the lower ends of the first elastic guide rod and the second elastic guide rod are fixed to the upper side of the pulley bracket. The upper ends of the first elastic guide rod and the second elastic guide rod are slidably arranged in the energy storage box in the vertical direction, and limit blocks are provided at the upper ends of the first elastic guide rod and the second elastic guide rod. The first spring is sleeved on the first elastic guide rod and is located between the top surface of the pulley cavity and the pulley bracket. The second spring is sleeved on the second elastic guide rod and is located between the top surface of the pulley cavity and the pulley bracket.

[0013] Furthermore, a locking mechanism is provided at the other end of the guide rail. The locking mechanism includes a locking block, a third spring, and a fourth spring. A locking block groove matching the locking block is opened on the upper side of the other end of the guide rail. A protruding ring protruding from the side of the locking block is provided at the lower end of the locking block. The cross-section of the locking block groove matches the protruding ring. The locking block is slidably disposed in the locking block groove in the vertical direction through the protruding ring. An inclined surface is provided on one side of the locking block facing the other end of the guide rail. Two circular blind holes matching the third spring and the fourth spring are opened on the bottom surface of the locking block groove. The lower ends of the third spring and the fourth spring are respectively locked in the two circular blind holes, and the upper ends of the third spring and the fourth spring abut against the lower side of the locking block.

[0014] Compared with existing technologies, this invention has the following advantages and effects: This invention provides an energy storage device for a three-dimensional parking garage photovoltaic power generation system. The connecting wires are protected by a connecting wire fixing and protection device on the outside, preventing direct contact between the connecting wires and the external high-salt, high-humidity environment, thus slowing down the aging process. Furthermore, the connecting wires are encased inside the fixing and protection device, preventing wear and tear and drag damage. The connecting wire fixing and protection device consists of multiple fixing and protection units. During wiring, these units can rotate without affecting the bending and folding of the connecting wires. After wiring is completed, the fixing and protection units are interlocked to solidify the device. This invention uses a track to install the energy storage box. During maintenance, the energy storage box can be directly pulled out along the track, eliminating the need for operation in confined spaces and making maintenance convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an energy storage device for a photovoltaic power generation system for a three-dimensional parking garage according to the present invention.

[0016] Figure 2 This is a schematic diagram of the connecting wire fixing and protection device of the present invention.

[0017] Figure 3 This is a top view of the fixed protection unit of the present invention.

[0018] Figure 4 This is a schematic diagram of the energy storage box and guide rail of the present invention.

[0019] Figure 5 This is a partial cross-sectional view of the energy storage box and guide rail of the present invention.

[0020] Figure 6 This is a schematic diagram of the elastic guide rail pulley mechanism of the present invention.

[0021] Figure 7 This is a schematic diagram of the locking mechanism of the present invention. Detailed Implementation

[0022] To illustrate in detail the technical solutions adopted by the present invention to achieve the intended technical objectives, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Furthermore, the technical means or technical features in the embodiments of the present invention can be replaced without creative effort. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, the energy storage device of the photovoltaic power generation system of the three-dimensional parking garage of the present invention includes an energy storage box 1, a box fixing mechanism, a connecting line 2 and a connecting line fixing protection device 3. The energy storage box 1 is fixedly installed on the floor by the box fixing mechanism. The energy storage box 1 is connected to the three-dimensional parking garage control system by the connecting line 2. The connecting line 2 is installed in the connecting line fixing protection device 3.

[0024] Both ends of the connecting cable 2 are provided with male connectors 4, and the side of the energy storage box 1 and the side of the automated parking system control cabinet are provided with female connectors. The two ends of the connecting cable 2 are respectively inserted into the female connectors on the side of the energy storage box 1 and the female connectors on the side of the automated parking system control cabinet, so as to realize the connection between the energy storage device and the automated parking system control system.

[0025] like Figure 2As shown, the connecting line fixing protection device 3 includes multiple fixing protection units. Each fixing protection unit includes a protective housing 5. The protective housing 5 has a connecting line through hole 6 along its length that matches the connecting line 2. The protective housing 5 is sleeved on the outside of the connecting line 2 through the connecting line through hole 6. One end of the protective housing 5 is provided with a protrusion 7 that protrudes from the end face of the protective housing 5, and the other end of the protective housing 5 is provided with a recess 8 that matches the protrusion 7. Two adjacent fixing protection units are arranged on the outside of the connecting line 2 in the same direction. The protrusion 7 of one fixing protection unit can be inserted into the recess 8 of another fixing protection unit to connect and fix the two fixing protection units.

[0026] In the initial state of the connecting line, the fixed protection unit is sleeved on the outside of the connecting line 2, but the adjacent fixed protection units are set separately. Therefore, the connecting line 2 can be bent and folded at will during the wiring process, and the wiring is carried out along the energy storage box, the floor surface and the side of the control console. After the connecting line 2 is completed, the protrusions 7 and recesses 8 of the adjacent fixed protection units are inserted into each other, so that the fixed protection units are connected at the end to form a fixed long strip protective sleeve structure, which protects the connecting line 2 inside.

[0027] like Figure 2 and Figure 3 As shown, at least one side of the protrusion 7 has a rectangular groove 9, and a wedge-shaped block structure 10 is provided in the rectangular groove 9. The protective housing 5 has levers 11 in number and position matching the rectangular groove 9. The levers 11 are hinged within the protective housing 5. One end of the lever 11 is located within a recess 8 at the other end of the protective housing 5, and one end of the lever 11 has a wedge-shaped surface matching the wedge-shaped block structure 10. The other end of the lever 11 has a toothed structure 12 facing the inside of the protective housing 5. The protective housing 5 has a cavity 13 for the lever 11 to rotate. When a protrusion 7 of a fixed protective unit is inserted... When the fixed protective unit is placed in the notch 8 of another fixed protective unit, the wedge block structure 10 in the rectangular groove 9 of one fixed protective unit pushes the wedge surface of one end of the lever 11 of the other fixed protective unit to rotate one end of the lever 11 toward the outside of the protective housing 5. The toothed structure 12 at the other end of the lever 11 rotates toward the inside of the protective housing 5 and is locked onto the outside of the protective line 2, thereby locking and fixing the protective line 2. In this way, when the two adjacent fixed protective units are plugged in, the two fixed protective units can be clamped and fixed on the outside of the connecting line 2 at the same time, so that the connecting line 2 will not slide inside the fixed protective unit.

[0028] Two connecting rods 14 are provided at one end of the protective housing 5. The connecting rods 14 are arranged along the length direction of the protective housing 5 and one end of the connecting rods 14 is fixed to the upper side of the two sides of the end of the protective housing 5. The inner side of the other end of the connecting rods 14 is provided with long teeth 15 arranged along the length direction of the connecting rods 14. The upper side of the two sides of the other end of the protective housing 5 is provided with irregular grooves, including a transverse groove 16, a circular groove 17 and a longitudinal groove 18. The transverse groove 16 is arranged along the length direction of the protective housing 5 and one end of the transverse groove 16 is connected to one side of the circular groove 17. The longitudinal groove 18 is arranged along the thickness direction of the protective housing 5 and the upper end of the longitudinal groove 18 is connected to the lower side of the circular groove 17. The groove width of the transverse groove 16 and the longitudinal groove 18 matches the thickness of the long teeth 15 on the inner side of the connecting rods 14. The inner diameter of the circular groove 17 matches the length of the long teeth 15.

[0029] When two adjacent fixed protection units need to be connected, the long tooth 15 of the connecting rod 14 of the latter fixed protection unit is rotated in the circular groove 17 until the long tooth 15 is parallel to the transverse groove 16, and the two fixed protection units are connected. At this time, the long tooth 15 of the latter fixed protection unit slides along the transverse groove 16 of the former fixed protection unit until the two fixed protection units are connected. When the connecting line 2 makes a right-angle transition with the floor at the bottom of the energy storage box, the long tooth 15 of the connecting rod 14 of the latter fixed protection unit is rotated in the circular groove 17 until the long tooth 15 is parallel to the longitudinal groove 18, and the connecting rod 14 of the latter fixed protection unit is pressed down. At this time, the long tooth 15 of the latter fixed protection unit slides down along the longitudinal groove 18 of the former fixed protection unit until it slides to the bottom of the longitudinal groove 18. At this time, the long tooth 15 is completely locked in the longitudinal groove 18, so that the two fixed protection units are set at a right angle.

[0030] The lower ends of both sides of the protective housing 5 are provided with fixing ears 19, and bolt holes 20 are opened on the fixing ears 19. After all the fixing protection units are connected to each other, the fixing protection units at appropriate positions are selected, and then the fixing protection units at these positions are fixed to the energy storage box, the floor and the side of the control console with bolts.

[0031] like Figure 4 As shown, the housing fixing mechanism includes two parallel guide rails 21. The lower side of the energy storage housing 1 has guide rail grooves that match the two guide rails 21. The lower side of the energy storage housing 1 is slidably mounted on the two guide rails 21 via the guide rail grooves. Four rollers 22 are provided on the lower side of the energy storage housing 1, and the four rollers 22 are respectively distributed at the four corners of the lower side of the energy storage housing 1. One end of the guide rail 21 is provided with a limit fixing block 23, and the other end of the guide rail 21 is provided with an arc-shaped guide surface 24.

[0032] like Figure 5As shown, elastic guide rail pulley mechanisms 25 are respectively provided at both ends of the guide rail groove, such as... Figure 6 As shown, the elastic guide rail pulley mechanism 25 includes two pulleys 26, a pulley bracket 27, a first elastic guide rod 28, a second elastic guide rod 29, a first spring 30, and a second spring 31. Pulley cavities 32 are opened at both ends of the guide rail groove. The two pulleys 26 are rotatably mounted at both ends of the pulley bracket 27. The first elastic guide rod 28 and the second elastic guide rod 29 are vertically mounted, and their lower ends are fixed to the upper side of the pulley bracket 27. The upper ends of the first elastic guide rod 28 and the second elastic guide rod 29 are slidably mounted vertically within the energy storage tank 1, and limit blocks 33 are provided at the upper ends of the first elastic guide rod 28 and the second elastic guide rod 29. The first spring 30 is sleeved on the first elastic guide rod 28 and located between the top surface of the pulley cavity 32 and the pulley bracket 27. The second spring 31 is sleeved on the second elastic guide rod 29 and located between the top surface of the pulley cavity 32 and the pulley bracket 27.

[0033] When the energy storage box 1 is pushed on the floor, it rolls on the floor relying on four rollers 22. During installation, the guide rail groove of the energy storage box 1 is aligned with the arc-shaped guide surface 24 of the two guide rails 21, and then the energy storage box 1 is pushed along the guide rails 21 to the other end. Due to the action of the arc-shaped guide surface 24, the two pulleys 26 of the elastic guide rail pulley mechanism 25 are pressed upward. Since the height of the guide rail 21 is slightly higher than the rollers 22, when the elastic guide rail pulley mechanism 25 slides to the upper side of the guide rail 21, it lifts the rollers 22 off the floor. That is, when the energy storage box 1 is on the guide rail 21, it is supported and slid by two sets of elastic guide rail pulley mechanisms 25. The elastic guide rail pulley mechanism 25 adopts a spring return structure, which can ensure good contact with the upper surface of the guide rail 21.

[0034] The other end of the guide rail 21 is provided with a locking mechanism 34, such as Figure 7 As shown, the locking mechanism 34 includes a locking block 35, a third spring 36, and a fourth spring 37. A locking block groove 38 matching the locking block 35 is formed on the upper side of the other end of the guide rail 21. A protruding ring 39 protruding from the side of the locking block 35 is provided at the lower end of the locking block 35. The cross-section of the locking block groove 38 matches the protruding ring 39. The locking block 35 slides vertically within the locking block groove 38 via the protruding ring 39, which limits the locking block 35 within the groove. An inclined surface is provided on one side of the locking block 35 facing the other end of the guide rail 21. Two circular blind holes 40 matching the third spring 36 and the fourth spring 37 are formed on the bottom surface of the locking block groove 38. The lower ends of the third spring 36 and the fourth spring 37 are respectively engaged in the two circular blind holes 40, and the upper ends of the third spring 36 and the fourth spring 37 abut against the lower side of the locking block 35.

[0035] When the energy storage box 1 is pushed along the guide rail 21 to the other end, the elastic guide rail pulley mechanism 25 presses the locking block 35 down into the locking block groove 38 along the inclined surface of the locking block 35. When the front side of the energy storage box 1 contacts the limiting fixing block 23 at one end of the guide rail 21, the locking block 35 pops up under the elastic force of the third spring 36 and the fourth spring 37, thereby locking and fixing the rear side of the energy storage box 1. When it is necessary to push the energy storage box 1 outward along the guide rail 21, it is only necessary to press the locking block 35 down.

[0036] This invention provides an energy storage device for a photovoltaic power generation system in a multi-level parking garage. The connecting wires are protected by a wire fixing and protection device on the outside, preventing direct contact with high-salt and high-humidity environments, thus slowing down wire aging. Furthermore, the connecting wires are encased within the fixing and protection device to prevent wear and tear and drag damage. The wire fixing and protection device consists of multiple fixing and protection units. During wiring, these units can rotate without affecting the bending and folding of the connecting wires. After wiring is completed, the fixing and protection units are interlocked to solidify the device. The energy storage unit is mounted on a track. During maintenance, the unit can be directly pulled out along the track, eliminating the need for operation in confined spaces and making maintenance convenient.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present invention, based on the technical essence of the present invention and within the spirit and principles of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. An energy storage device for a photovoltaic power generation system in a multi-level parking garage, characterized in that: It includes an energy storage box, a box fixing mechanism, connecting wires, and a connecting wire fixing and protection device. The energy storage box is fixed to the floor by the box fixing mechanism. The energy storage box is connected to the automated parking system through connecting wires, and the connecting wires are installed inside the connecting wire fixing and protection device.

2. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 1, characterized in that: The connecting wire is provided with male connectors at both ends, and female connectors are provided on the side of the energy storage box and the side of the automated parking system control cabinet. The male connectors at both ends of the connecting wire are respectively inserted into the female connectors on the side of the energy storage box and the side of the automated parking system control cabinet.

3. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 1, characterized in that: The connecting line fixing and protection device includes multiple fixing and protection units. Each fixing and protection unit includes a protective housing. The protective housing has a connecting line through hole along its length that matches the connecting line. The protective housing is sleeved on the outside of the connecting line through the connecting line through hole. One end of the protective housing is provided with a protrusion that protrudes from the end face of the protective housing, and the other end of the protective housing is provided with a recess that matches the protrusion. Two adjacent fixing and protection units are arranged on the outside of the connecting line in the same direction. The protrusion of one fixing and protection unit can be inserted into the recess of another fixing and protection unit to connect and fix the two fixing and protection units.

4. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 3, characterized in that: At least one side of the protrusion has a rectangular groove, and a wedge-shaped block structure is provided in the rectangular groove. The protective housing has levers in number and position matching the rectangular groove. The levers are hinged in the protective housing. One end of the lever is located in the recess at the other end of the protective housing, and the end of the lever is provided with a wedge-shaped surface matching the wedge-shaped block structure. The other end of the lever is provided with a toothed structure facing the inside of the protective housing. The protective housing has a cavity for the lever to rotate. When the protrusion of one fixed protective unit is inserted into the recess of another fixed protective unit, the wedge-shaped block structure in the rectangular groove of one fixed protective unit pushes the wedge-shaped surface at one end of the lever of the other fixed protective unit, causing one end of the lever to rotate outward of the protective housing. The toothed structure at the other end of the lever rotates inward of the protective housing and is locked on the outside of the protective line.

5. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 3, characterized in that: Two connecting rods are provided at one end of the protective shell. The connecting rods are arranged along the length of the protective shell and one end of the connecting rods is fixed to the upper side of the two sides of the end of the protective shell. The inner side of the other end of the connecting rod is provided with long teeth arranged along the length of the connecting rod. The upper side of the two sides of the other end of the protective shell is provided with irregular grooves, including transverse grooves, circular grooves and longitudinal grooves. The transverse groove is arranged along the length of the protective shell and one end of the transverse groove is connected to one side of the circular groove. The longitudinal groove is arranged along the thickness of the protective shell and the upper end of the longitudinal groove is connected to the lower side of the circular groove. The groove width of the transverse groove and the longitudinal groove matches the thickness of the long teeth on the inner side of the connecting rod. The inner diameter of the circular groove matches the length of the long teeth.

6. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 3, characterized in that: The lower ends of both sides of the protective housing are provided with fixing ears, and bolt holes are opened on the fixing ears.

7. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 1, characterized in that: The housing fixing mechanism includes two parallel guide rails. The lower side of the energy storage housing has guide rail grooves that match the two guide rails. The lower side of the energy storage housing is slidably mounted on the two guide rails through the guide rail grooves. Four rollers are provided on the lower side of the energy storage housing, and the four rollers are distributed at the four corners of the lower side of the energy storage housing.

8. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 7, characterized in that: One end of the guide rail is provided with a limit fixing block, and the other end of the guide rail is provided with an arc-shaped guide surface.

9. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 7, characterized in that: The guide rail groove is provided with elastic guide rail pulley mechanisms at both ends. The elastic guide rail pulley mechanism includes two pulleys, a pulley bracket, a first elastic guide rod, a second elastic guide rod, a first spring, and a second spring. The guide rail groove has pulley cavities at both ends. The two pulleys are rotatably mounted at both ends of the pulley bracket. The first and second elastic guide rods are vertically mounted, and their lower ends are fixed to the upper side of the pulley bracket. The upper ends of the first and second elastic guide rods are slidably mounted in the energy storage tank in the vertical direction, and limit blocks are provided at the upper ends of the first and second elastic guide rods. The first spring is sleeved on the first elastic guide rod and located between the top surface of the pulley cavity and the pulley bracket. The second spring is sleeved on the second elastic guide rod and located between the top surface of the pulley cavity and the pulley bracket.

10. The energy storage device for a photovoltaic power generation system in a multi-level parking garage according to claim 7, characterized in that: The other end of the guide rail is provided with a locking mechanism, which includes a locking block, a third spring, and a fourth spring. The upper side of the other end of the guide rail has a locking block groove that matches the locking block. The lower end of the locking block has a protruding ring that protrudes from the side of the locking block. The cross-section of the locking block groove matches the protruding ring. The locking block slides vertically in the locking block groove through the protruding ring. The side of the locking block facing the other end of the guide rail has an inclined surface. The bottom surface of the locking block groove has two circular blind holes that match the third spring and the fourth spring. The lower ends of the third spring and the fourth spring are respectively locked in the two circular blind holes, and the upper ends of the third spring and the fourth spring abut against the lower side of the locking block.

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