Hoisting device and energy storage battery
By designing the frame, wheel drive mechanism, and swing arm lifting mechanism of the hoisting device, the problem of traditional cranes being unable to enter confined spaces was solved, enabling efficient and stable stacking of energy storage battery modules, improving installation accuracy and safety, and adapting to the operational needs of confined spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-03
AI Technical Summary
Traditional cranes and hoists cannot enter confined spaces, and existing hoisting tools are large and heavy, making it difficult to install stacked energy storage batteries in confined spaces and posing safety hazards.
Design a hoisting device including a frame, a wheel drive mechanism, a swing arm lifting mechanism, and a hanging frame. Through the cooperation of the wheel drive mechanism and the swing arm lifting mechanism, the hanging frame can be accurately positioned in the vertical and horizontal directions. A pulley block is used to reduce friction, and a stop and anti-reverse pin system prevents excessive rotation, providing a convenient manual operation method.
This technology enables efficient and stable stacking of energy storage battery modules in confined spaces, improving installation accuracy and safety, reducing operational difficulty, adapting to working environments with limited space and inconvenient power supply, and enhancing operational efficiency and safety.
Smart Images

Figure CN223963189U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of energy storage technology, and in particular to a hoisting device and an energy storage battery. Background Technology
[0002] With the continuous development of energy storage technology, stacked energy storage batteries are being used more and more widely in energy storage systems, especially in applications requiring high energy density and long lifespan. These batteries are typically composed of multiple stacked battery modules, with the number of layers and volume of the battery cluster increasing as energy storage demands grow.
[0003] However, as the number of stacked layers increases and the spacing between battery clusters decreases, the installation of battery modules becomes increasingly complex. Factors such as indoor and confined space installation mean that traditional methods involving manual lifting, small cranes, or gantry cranes are no longer sufficient. Existing technologies typically present the following problems with the installation of stacked energy storage batteries:
[0004] 2. Cranes and gantry cranes cannot enter confined spaces: Traditional cranes and gantry cranes are usually large in size and have limited operating space, making it impossible to enter these confined areas and thus making it impossible to effectively complete lifting operations.
[0005] 3. Large size and heavy weight of installation tools: Most existing hoisting tools are designed to be bulky, large in size and heavy in weight, which makes it very difficult to operate them in narrow spaces. The installation tools have poor mobility and cannot provide flexible operation methods.
[0006] Therefore, there is an urgent need for a hoisting tool that can be operated flexibly in confined spaces, has high safety, and is easy to carry and operate, in order to improve installation efficiency and reduce safety hazards during operation. Utility Model Content
[0007] To address the problem that existing installation methods cannot meet the installation requirements of battery clusters in close proximity and limited space, this application provides a hoisting device and an energy storage battery.
[0008] The hoisting device and energy storage battery provided in this application adopt the following technical solution:
[0009] A hoisting device includes a frame, a wheel drive mechanism, a swing arm lifting mechanism, and a hanging frame. The wheel drive mechanism is mounted on the frame, and the hanging frame is connected to the swing arm lifting mechanism. The hanging frame is used to carry the object to be hoisted, and the wheel drive mechanism is connected to the swing arm lifting mechanism and is used to drive the swing arm lifting mechanism to lift, lower, and rotate.
[0010] By adopting the above technical solution, the hoisting device of this application, through the cooperation of the wheel drive mechanism and the swing arm lifting mechanism, can operate flexibly in confined spaces, avoiding the predicament of traditional cranes being unable to enter. Through the adjustable swing arm lifting mechanism, the hoisting device can accurately control the position of the hanging frame during lifting and rotation, achieving accurate hoisting. This allows the object to be hoisted to be accurately lifted into the installation position within a small distance, reducing errors and operational difficulty. It has strong adaptability, flexibility, and safety, improving the efficiency and safety of the installation process.
[0011] In one specific implementation, the swing arm lifting mechanism includes a swing arm, a lifting rope, a rotating rope, and a first pulley group and a second pulley group disposed on the swing arm. The lifting rope is connected to the hanging frame and the wheel drive mechanism through the first pulley group, and the rotating rope is connected to the swing arm and the wheel drive mechanism through the second pulley group. The wheel drive mechanism is used to control the raising, lowering, and fixing of the lifting rope and the rotating rope.
[0012] By adopting the above technical solution, through the synergistic effect of the lifting rope and the rotating rope, the device can operate simultaneously in the vertical and horizontal directions, enabling accurate control of the hoisted object in a space-constrained environment, greatly improving hoisting efficiency and flexibility.
[0013] In one specific implementation, the frame is provided with a third pulley group, which is located between the swing arm and the wheel drive mechanism. The rotating rope is connected to the frame through the third pulley group. The hanging frame is provided with a fourth pulley group, and the lifting rope is connected to the hanging frame through the fourth pulley group.
[0014] By adopting the above technical solution and setting the third and fourth pulley blocks, the installation of the lifting rope and the rotating rope can be realized, and the friction of the lifting rope and the rotating rope can be reduced. Furthermore, when the rope slides on the pulley blocks, the loss of rope tension can be avoided, thereby improving the efficiency of the system.
[0015] In one specific implementation, the wheel drive mechanism includes a lifting wheel and a rotating wheel rotatably mounted on the frame, the lifting rope being rotatably connected to the lifting wheel, and the rotating rope being rotatably connected to the rotating wheel; it also includes a stop for limiting the rotation of the lifting wheel.
[0016] By employing the above technologies, through the cooperation of the lifting and rotating discs and the protection of the stop components, the lifting system can more smoothly control the raising and lowering of the hanging frame. The stop components effectively prevent excessive or uncontrolled rotation of the discs, enhancing the safety of the system and extending the service life of the entire system.
[0017] In one specific implementation, the lifting wheel and the rotating wheel are provided with a take-up reel, the lifting rope and the rotating rope are wrapped around the take-up reel and connected to the lifting wheel and the rotating wheel respectively, the take-up reel is provided with a fixing hole, and the stop member is used in conjunction with the fixing hole.
[0018] By adopting the above technical solutions, the design of the take-up reel ensures that the rope operates under the correct tension, avoiding the impact on operational stability due to excessive slack or knots in the rope. At the same time, the cooperation between the stop and the fixed hole further limits the excessive rotation of the lifting wheel, ensuring that the hoisting operation is completed smoothly and safely.
[0019] In one specific implementation, the stop includes a first stop plate and a first stop pin disposed on the lifting wheel; the first stop pin is fixed by engaging with the first stop plate and the fixing hole to restrict the rotation of the lifting wheel.
[0020] By adopting the above technical solution, the rotation of the lifting wheel can be restricted through the cooperation of the first stop pin and the first stop disc. The stop can ensure that each component stops stably at the target position, avoids exceeding the predetermined range, and ensures the reliability and safety of the lifting equipment during operation.
[0021] In one specific implementation scheme, the system further includes a first anti-reverse pin and a second anti-reverse pin disposed on the frame. The lifting wheel and the rotating wheel are respectively provided with a first anti-reverse tooth and a second anti-reverse tooth. The first anti-reverse pin engages with the first anti-reverse tooth, and the second anti-reverse pin engages with the second anti-reverse tooth.
[0022] By adopting the above technical solution, the first and second anti-reverse pins, through meshing with the anti-reverse teeth, can prevent the lifting wheel and the rotating wheel from rotating in the opposite direction, ensuring that the system maintains a stable running direction during operation, thereby avoiding mechanical damage or work errors that may be caused by reverse movement.
[0023] In one specific implementation, the lifting wheel and the rotating wheel are respectively provided with a first rotating handle and a second rotating handle.
[0024] By adopting the above technical solution and utilizing the design of the first and second rotary handles, good manual control capability is provided, enabling operators to flexibly control the rotation of the lifting and rotating discs, thereby improving the ease of operation of the equipment.
[0025] In one specific implementation, the frame is provided with mounting holes and mounting bolts, and the frame is installed in the working position through the mounting holes and mounting bolts; the hanging frame is provided with fixing holes and fixing bolts, and the hanging frame is connected and fixed to the object to be lifted through the fixing holes and fixing bolts.
[0026] By adopting the above technical solution, the holes and bolts are designed with standardized connection methods, enabling the entire hoisting system to be quickly installed and disassembled. Operators can quickly connect and fix the components using simple tools, improving work efficiency and simplifying the operation process.
[0027] An energy storage battery is stacked and assembled using the hoisting device described above.
[0028] By adopting the above-described technical solution and using the lifting device described above for stacking and assembling energy storage batteries, not only can the assembly accuracy and efficiency be significantly improved, but it can also operate flexibly in confined spaces. Through reasonable design, the flexibility and compact design of the lifting device enable it to operate in confined environments, solving the difficulties of traditional installation methods that cannot complete stacking due to space limitations. The accurate control of the lifting device can ensure that the stacking position of each battery unit is more accurate, avoiding errors caused by manual operation and improving assembly speed. Furthermore, this tool is easy to carry, disassemble, and install, suitable for working in dynamic and confined spaces, and can better meet the assembly needs of modern energy storage systems.
[0029] In summary, the beneficial technical effects of this application are as follows: The hoisting device of this application, through accurate structural design and efficient working principle, achieves rapid and stable stacking of stacked energy storage battery modules. The device, combined with a wheel drive mechanism, a swing arm lifting mechanism, and a hanging frame, enables accurate control of the hoisted object in both vertical and horizontal directions, ensuring accurate positioning and stacking of the battery modules, greatly improving work efficiency and safety. The simple manual operation method adapts to working environments with confined spaces and inconvenient power supply, reducing reliance on complex mechanical equipment. Simultaneously, the stop components and anti-reverse pin system in the device design effectively prevent excessive movement and mechanical damage, ensuring the stability of each component in the target position, further improving the reliability, flexibility, and safety of operation. It exhibits strong adaptability, especially in environments with frequent changes in work locations, enhancing the work efficiency and overall safety of the stacked energy storage battery hoisting process. Attached Figure Description
[0030] Figure 1 This is a structural schematic diagram of the hoisting device according to an embodiment of this application.
[0031] Figure 2 This is a schematic diagram used to demonstrate the hoisting device installed on the energy storage battery.
[0032] Figure 3 This is a structural schematic diagram used to illustrate the swing arm lifting mechanism.
[0033] Figure 4 It is an enlarged view used to show the wheel drive mechanism.
[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Swing arm; 3. Rotating wheel; 4. Lifting wheel; 5a. First stop pin; 6a. First stop plate; 7a. First anti-reverse pin; 7b. Second anti-reverse pin; 8. First pulley block; 9. Second pulley block; 10. Third pulley block; 11. Fourth pulley block; 12. Lifting rope; 13. Rotating rope; 14. Mounting bolt; 15. Bearing; 16a. First rotating handle; 16b. Second rotating handle; 17. Battery module; 18. Hanging bracket; 19. Fixing bolt; 20a. First anti-reverse tooth; 20b. Second anti-reverse tooth; 21. Fixing hole. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0036] Reference Figure 1 and Figure 2 This application discloses a hoisting device, including but not limited to stacking assembly work of stacked energy storage batteries, which are composed of multiple battery modules 17 stacked together.
[0037] The hoisting device includes a frame 1, a wheel drive mechanism, a swing arm lifting mechanism, and a hanging frame 18; the frame 1 is the main support structure of the hoisting device and is made of sheet metal.
[0038] The wheel drive mechanism is mounted on the frame 1, and the hanging frame 18 is connected to the swing arm lifting mechanism. The hanging frame 18 is used to carry the object to be lifted. In this embodiment, the object to be lifted is the battery module 17 to be stacked. The wheel drive mechanism is connected to the swing arm lifting mechanism and is used to drive the swing arm lifting mechanism to lift and rotate.
[0039] The frame 1 is provided with multiple mounting holes for fixing the frame 1 to the working position by mounting bolts 14. In this embodiment, the frame 1 is installed on the bottom battery module 17 of the stacked energy storage battery or on the partially stacked battery module 17. This design can meet the requirements of portability and quick installation. The mounting holes and bolts adopt a standardized design, and the operator can use tools (such as wrenches) to quickly complete the installation and disassembly. It is suitable for scenarios that require frequent movement in different working locations, such as the stacking assembly of energy storage batteries.
[0040] During operation, the frame 1 of the hoisting device is erected and fixed onto the partially stacked battery modules 17. The frame 1 is connected and fixed to the battery modules 17 through mounting bolts 14 and mounting holes. During hoisting, the swing arm 2 is driven by the wheel drive mechanism to adjust the lifting and rotation angles as needed, ensuring that the hanging frame 18 can be accurately positioned during hoisting. Driven by the swing arm lifting mechanism, the battery modules 17 carried by the hanging frame 18 are lifted and accurately moved to the predetermined position. Through the adjustable swing arm lifting mechanism, the hoisting device can control the position of the hanging frame 18 during lifting and rotation, achieving accurate hoisting. This allows the object to be hoisted to be accurately hoisted into the installation position within a small gap, reducing errors and operational difficulty. It has strong adaptability, flexibility and safety, greatly improving the efficiency and safety of the installation process.
[0041] Reference Figure 1-3 The swing arm lifting mechanism includes a swing arm 2, a lifting rope 12, a rotating rope 13, and a first pulley group 8 and a second pulley group 9 mounted on the swing arm 2. A third pulley group 10 is mounted on the frame 1 and is located between the swing arm 2 and the wheel drive mechanism. In this embodiment, the lifting rope 12 and the rotating rope 13 can be, but are not limited to, wire ropes. The swing arm 2 is made of sheet metal and is connected to the frame 1 via a bearing 15. The lifting rope 12 is wound around the first pulley group 8, with one end rotatably connected to the hanging frame 18 and the other end rotatably connected to the wheel drive mechanism. The rotating rope 13 is wound around the second pulley group 9, with one end connected to the swing arm 2 and the other end first wound around the third pulley group 10 and then rotatably connected to the wheel drive mechanism. The design of the first, second, and third pulley groups optimizes the transmission path of the ropes, reduces friction and unnecessary tension, and improves the stability of the entire system.
[0042] The wheel drive mechanism is used to control the winding, unwinding, and fixing of the lifting rope 12 and the rotating rope 13. When the lifting rope 12 is tightened, the hanging frame 18 rises vertically; when the rotating rope 13 is tightened, the swing arm 2 rotates, causing the hanging frame 18 to move horizontally. Through the coordinated action of the lifting rope 12 and the rotating rope 13, the device can operate simultaneously in the vertical and horizontal directions, enabling accurate control of the hoisted object in a space-constrained environment, thereby improving hoisting efficiency and flexibility.
[0043] The hanging frame 18 is the component that directly supports the battery module 17. The hanging frame 18 is equipped with a fourth pulley group 11. The lifting rope 12 is connected to the hanging frame 18 through the fourth pulley group 11. The fourth pulley group 11 can reduce the friction between the lifting rope 12 and the hanging frame 18, making the lifting of the hanging frame 18 more stable.
[0044] The hanging frame 18 is also provided with fixing holes and fixing bolts 19 for connecting with the battery modules 17 to be stacked. The hanging frame 18 is connected and fixed to the battery modules 17 to be stacked through fixing holes and fixing bolts 19, ensuring that the hanging frame 18 can stably support and lift the object to be lifted during the lifting operation, and ensuring the stability and safety of the lifting process.
[0045] Reference Figure 1 and Figure 4 The wheel drive mechanism includes a lifting wheel 4 and a rotating wheel 3, both of which are mounted on the frame 1 via bearings 15. The lifting wheel 4 and the rotating wheel 3 are respectively equipped with a first rotating handle 16a and a second rotating handle 16b. Operators can control the rotation of the wheel by manually rotating the handles. The operation of the manual rotating handles is simple and intuitive, and is particularly suitable for working environments with limited space or inconvenient power supply. Operators do not need to rely on complex mechanical equipment and can complete the hoisting task by manual operation alone.
[0046] Both the lifting wheel 4 and the rotating wheel 3 are equipped with take-up reels. The lifting rope 12 and the rotating rope 13 are respectively wrapped around the corresponding take-up reels. The take-up reels can ensure that the ropes are operated under the correct tension and prevent the ropes from being too loose or knotted, which would affect the stability of the operation. When the operator drives the lifting wheel 4 through the first rotating handle 16a, the lifting rope 12 is tightened or loosened, thereby realizing the lifting and lowering of the hanging frame 18. Similarly, the rotation of the rotating wheel 3 is controlled by the second rotating handle 16b, and the rotation angle of the swing arm 2 is controlled by tightening or loosening the rotating rope 13.
[0047] It also includes a stopper, which is used to limit the rotation of the lifting wheel 4. The take-up reel is provided with a fixing hole 21, and the stopper is used in conjunction with the fixing hole 21. During operation, the lifting wheel 4 and the rotating wheel 3 drive the lifting rope 12 and the rotating rope 13 through the take-up reel, thereby controlling the lifting and lowering of the hanging frame 18 and the rotation of the swing arm 2. When the hanging frame 18 moves to the target position, the stopper and the fixing hole 21 are used to limit the wheel from continuing to rotate, thus completing the hoisting.
[0048] Reference Figure 1 and Figure 4 The stop includes a first stop plate 6a and a first stop pin 5a disposed on the lifting wheel 4. The first stop pin 5a is fixed by engaging with the first stop plate 6a and the fixing hole 21. When the system needs to stop the rotation of the lifting wheel 4, the first stop pin 5a will engage with the fixing hole 21 on the first stop plate 6a, thereby restricting the lifting wheel 4 from continuing to rotate and ensuring that the equipment stays in the predetermined position. Thus, the stop can ensure that each component stops stably in the target position, avoids exceeding the predetermined range, enhances the positioning accuracy and operational stability of the equipment, and ensures the reliability and safety of the lifting equipment during operation.
[0049] In addition, it also includes a first anti-reverse pin 7a and a second anti-reverse pin 7b provided on the frame 1. The lifting wheel 4 and the rotating wheel 3 are respectively provided with a first anti-reverse tooth 20a and a second anti-reverse tooth 20b. The first anti-reverse pin 7a meshes with the first anti-reverse tooth 20a, and the second anti-reverse pin 7b meshes with the second anti-reverse tooth 20b. In this embodiment, both the first anti-reverse tooth 20a and the second anti-reverse tooth 20b are provided with a stop plane and a rotation slope. The stop plane is used to resist the movement of the first anti-reverse pin 7a or the second anti-reverse pin 7b to achieve the effect of preventing reverse rotation. The rotation slope is used to guide the wheel when it rotates. Through the cooperation of the rotation slope and the anti-reverse pin, it is ensured that the anti-reverse pin can smoothly enter the fixed position of the anti-reverse tooth to prevent unnecessary jamming or mechanical damage.
[0050] When the lifting wheel 4 or the rotating wheel 3 rotates, the first anti-reverse tooth 20a engages with the first anti-reverse pin 7a, and the second anti-reverse tooth 20b engages with the second anti-reverse pin 7b, ensuring that the wheel can only rotate in the predetermined direction. If there is a tendency to rotate in the opposite direction, the meshing force will immediately prevent the wheel from moving in the opposite direction, thereby ensuring the stability of the system. The first anti-reverse pin 7a and the second anti-reverse pin 7b, by engaging with the anti-reverse teeth, can prevent the lifting wheel 4 and the rotating wheel 3 from rotating in the opposite direction, ensuring that they maintain a stable running direction during operation, thereby avoiding mechanical damage or work errors that may be caused by reverse movement.
[0051] The implementation principle of this application embodiment is as follows: During operation, the operator fixes the frame 1 of the hoisting device to the partially stacked battery modules 17 through multiple mounting holes and mounting bolts 14 according to the operation requirements; then the hoisting frame 18 is connected to the battery modules 17 to be hoisted, and the fixing holes and fixing bolts 19 on the hoisting frame 18 are matched with the corresponding holes of the battery modules 17 to ensure that the battery modules 17 are stably hung on the hoisting frame 18, and the hoisting preparation is completed;
[0052] During hoisting, the operator manually rotates the first rotating handle 16a on the lifting wheel 4 to tighten or loosen the lifting rope 12. As the lifting rope 12 is adjusted, the hoisting frame 18 rises vertically, lifting the battery module 17 to be hoisted. At the same time, the operator rotates the second rotating handle 16b to drive the rotating wheel 3, controlling the tightening or loosening of the rotating rope 13, which drives the swing arm 2 to rotate horizontally. Through the rotation of the swing arm 2, the hoisting frame 18 can move accurately in the horizontal plane to align the battery module 17 with the partially stacked battery module 17 and complete the stacking. During this process, the positions of the lifting wheel 4 and the rotating wheel 3 are locked by the stop and anti-reverse pin system to ensure that each component stops stably at the target position.
[0053] The hoisting device of this application achieves efficient and stable stacking of stacked energy storage battery modules 17 by controlling lifting and rotation functions. It adopts a convenient manual operation method and achieves accurate positioning and movement in the vertical and horizontal directions through the cooperation of the wheel drive mechanism, the swing arm lifting mechanism and the hanging frame 18, thereby improving work efficiency and safety. The design of the stop and anti-reverse pin system ensures that each component stays stably in the target position, avoids excessive movement, enhances operational stability, and makes the entire hoisting process more reliable, flexible and adaptable. By introducing a hoisting device for stacking and assembling energy storage batteries, it not only solves the dilemma of space constraints in traditional methods, but also improves work efficiency and safety.
[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A hoisting device, characterized by: The lifting device comprises a frame, a wheel disc driving mechanism, a swing arm lifting mechanism and a hanging frame, the wheel disc driving mechanism is installed on the frame, the hanging frame is connected with the swing arm lifting mechanism, the hanging frame is used for carrying a to-be-lifted object, the wheel disc driving mechanism is connected with the swing arm lifting mechanism and is used for driving the swing arm lifting mechanism to lift and rotate.
2. The hoisting device of claim 1, wherein: The swing arm lifting mechanism comprises a swing arm, a lifting rope, a rotating rope and a first pulley block and a second pulley block arranged on the swing arm, the lifting rope is connected with the hanging frame and the wheel disc driving mechanism through the first pulley block, and the rotating rope is connected with the swing arm and the wheel disc driving mechanism through the second pulley block; the wheel disc driving mechanism is used for controlling the winding and unwinding of the lifting rope and the rotating rope.
3. The hoisting device of claim 2, wherein: A third pulley block is arranged on the frame and located between the swing arm and the wheel disc driving mechanism, the rotating rope is connected with the frame through the third pulley block, and a fourth pulley block is arranged on the hanging frame, the lifting rope is connected with the hanging frame through the fourth pulley block.
4. The hoisting device of claim 2, wherein: The wheel disc driving mechanism comprises a lifting wheel disc and a rotating wheel disc which are rotationally arranged on the frame, the lifting rope is rotationally connected with the lifting wheel disc, and the rotating rope is rotationally connected with the rotating wheel disc; the wheel disc driving mechanism further comprises a stopper which is used for limiting the rotation of the lifting wheel disc.
5. The hoisting device of claim 4, wherein: The lifting wheel disc and the rotating wheel disc are internally provided with a take-up reel, the lifting rope and the rotating rope are wound around the take-up reel and are connected with the lifting wheel disc and the rotating wheel disc correspondingly, and the take-up reel is provided with a fixing hole position, and the stopper is used in cooperation with the fixing hole position.
6. The hoisting device of claim 5, wherein: The stopper comprises a first stopper disc arranged on the lifting wheel disc and a first stopper pin, the first stopper pin is clamped and fixed with the first stopper disc and the fixing hole position to limit the rotation of the lifting wheel disc.
7. The hoisting device of claim 5, wherein: The wheel disc driving mechanism further comprises a first reverse stop pin and a second reverse stop pin arranged on the frame, the lifting wheel disc and the rotating wheel disc are respectively provided with a first reverse stop tooth and a second reverse stop tooth, the first reverse stop pin is engaged with the first reverse stop tooth, and the second reverse stop pin is engaged with the second reverse stop tooth.
8. The hoisting device of claim 5, wherein: The lifting wheel disc and the rotating wheel disc are respectively provided with a first rotating handle and a second rotating handle.
9. The hoisting device of claim 1, wherein: The frame is provided with a mounting hole and a mounting bolt, the frame is mounted at a working position through the mounting hole and the mounting bolt, the hanging frame is provided with a fixing hole and a fixing bolt, and the hanging frame and the to-be-lifted object are connected and fixed through the fixing hole and the fixing bolt.
10. An energy storage cell characterized by: The lifting device is used for stacking assembly.