A tie rod structure for an energy storage device and the energy storage device itself.

Abstract

This application relates to a rod structure for an energy storage device and the energy storage device itself. The rod structure includes a base shell, a telescopic rod, and a support. The support is disposed on the base shell, and a telescopic space and a first storage space are formed between the support and the base shell. The first storage space communicates with the telescopic space. The telescopic rod includes a rod body and a handle connected to the rod body. The rod body is telescopically disposed in the telescopic space, and the first storage space is used to store the handle. Along the telescopic direction of the rod body, a first engaging portion and a first positioning member are sequentially disposed within the telescopic space. The first engaging portion is closer to the first storage space than the first positioning member. The support is provided with a second engaging portion. The first engaging portion and the second engaging portion together form a first retaining ring, which engages with the outer ring of the telescopic rod. A first positioning hole is provided at the end of the rod body away from the handle, and the first positioning member passes through the first positioning hole, thereby fixing the base shell to the rod body. This improves the stability and convenience of the rod structure.

Description

Technical Field

[0001] This application relates to the field of energy storage equipment technology, specifically to a tie rod structure and energy storage device. Background Technology

[0002] With the increasing demand for portable energy storage products, and benefiting from the rapid development of the lithium-ion battery market, the application of portable energy storage products is becoming increasingly widespread. Global shipments, market size, production volume, and sales volume of portable energy storage products have all maintained rapid growth, with shipments increasing significantly. As more and more companies enter the portable energy storage product market, the requirements for the technology, processes, and safety performance of portable energy storage products are gradually increasing.

[0003] Some existing energy storage products, such as outdoor power supplies, typically rely on manual lifting or carrying, making them difficult to move and causing fatigue for the handlers. According to safety certification standards for portable energy storage products, those exceeding 23KG require the addition of a pulling device. However, the pulling devices of some products have complex structures and poor stability, resulting in a poor user experience. Utility Model Content

[0004] The embodiments of this application aim to provide a tie rod structure for an energy storage device and an energy storage device, so as to improve the technical problem of poor stability of the tie rod structure of existing energy storage products.

[0005] In order to solve its technical problems, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide a rod structure for an energy storage device, including a base shell, a telescopic rod, and a bracket. The bracket is disposed on the base shell, and a telescopic space and a first storage space are formed between the bracket and the base shell. The first storage space communicates with the telescopic space. The telescopic rod includes a rod body and a handle connected to the rod body. The rod body is telescopically disposed in the telescopic space, and the first storage space is used to store the handle. In the telescopic direction of the rod body, a first engaging portion and a first positioning member are sequentially disposed within the telescopic space. The first engaging portion is closer to the first storage space than the first positioning member. The bracket is provided with a second engaging portion. The first engaging portion and the second engaging portion together form a first retaining ring, which engages with the outer ring of the telescopic rod. A first positioning hole is provided at the end of the rod body away from the handle, and the first positioning member passes through the first positioning hole, thereby fixing the base shell to the rod body. A support platform is formed on the side of the bracket away from the base shell, and the support platform is configured to support a battery pack.

[0007] In some embodiments, a first protrusion is provided at one end of the rod near the handle, and a second positioning hole is provided at one end of the bracket near the second locking part. When the rod is disposed in the telescopic space, the first protrusion is locked into the second positioning hole.

[0008] In some embodiments, a first slot is provided at the end of the bottom shell away from the first storage space, and the pull rod structure further includes a connecting rod and a first fixing plate. The connecting rod is disposed in the first slot, and the first fixing plate covers the first slot and is fixed to the bottom shell.

[0009] In some embodiments, along a first direction, the first fixing plate includes a first end, which is bent toward the bottom shell. The first end has a first latch, which, together with a first slot, forms a second retaining ring. The second retaining ring engages with the outer ring of the connecting rod. The first direction, the extension / retraction direction of the rod, and the direction from the bottom shell to the bracket are all perpendicular to each other.

[0010] In some embodiments, the pull rod structure further includes a caster, the caster including a bearing, and the connecting rod extending into the bearing and connected to the caster.

[0011] In some embodiments, the pull rod structure further includes a caster cover that partially covers the caster.

[0012] In some embodiments, the pull rod structure further includes an anti-slip pad disposed on the side of the bottom shell opposite to the bracket.

[0013] Secondly, embodiments of this application also provide an energy storage device, including a rod structure, a battery pack, a middle frame, and a front shell as described in any of the first aspects. The middle frame has a second storage space on the side facing the rod structure, the battery pack is housed in the second storage space, the support platform of the rod structure carries the battery pack, the middle frame is disposed between the rod structure and the front shell, and the middle frame is fixed to both the rod structure and the front shell.

[0014] In some embodiments, the pull rod structure further includes a first screw, which passes through the battery pack, the middle frame, and the front shell, and is threadedly connected to the front shell.

[0015] In some embodiments, the energy storage device further includes a foot pad bracket and a first fixing member. The foot pad bracket is fixedly connected to the first fixing member. The middle frame has a third fixing hole, and the front shell has a fourth fixing hole. The first fixing member passes through the third fixing hole and the fourth fixing hole in sequence and is fixedly connected to the front shell.

[0016] Unlike related technologies, this application provides a pull rod structure for an energy storage device. The pull rod structure includes a base shell, a telescopic rod, and a support. The support is disposed on the base shell, and a telescopic space and a first storage space are formed between the support and the base shell. The first storage space communicates with the telescopic space. The telescopic rod includes a rod body and a handle connected to the rod body. The rod body is telescopically disposed within the telescopic space. The first storage space is used to store the handle, reducing the volume of the energy storage device and minimizing the possibility of the handle being exposed and taking up space or being damaged by collision, thus achieving "hidden storage." When the telescopic rod is extended, the extended length of the rod body allows the user to grip the handle, facilitating the user to pull the entire energy storage device and improving the ease of movement of the energy storage device. Along the telescopic direction of the rod body, a first engaging portion and a first positioning member are sequentially disposed within the telescopic space. The first engaging portion is closer to the first storage space than the first positioning member. The support is provided with a second engaging portion. The first engaging portion and the second engaging portion together form a first retaining ring, which engages with the outer ring of the telescopic rod. The first retaining ring allows the rod to slide while limiting its radial displacement during telescopic movement, ensuring stable axial extension and contraction and reducing jamming or structural wear caused by displacement. A first positioning hole is provided at the end of the rod away from the handle, through which a first positioning element passes, fixing the bottom shell to the rod. This not only simplifies the structure and facilitates installation and disassembly but also improves the stability of the connection between the rod and the bottom shell. A support platform is formed on the side of the bracket opposite the bottom shell, serving as a support for the battery pack. The combination of the aforementioned rod structure and the battery pack facilitates portable movement of the energy storage device, reducing space requirements while improving stability during movement. Attached Figure Description

[0017] Figure 1 This application provides exploded schematic diagrams of some tie rod structures in its embodiments;

[0018] Figure 2 This application provides some schematic diagrams of the bottom shell structure;

[0019] Figure 3 This application provides structural schematic diagrams of some supports in its embodiments;

[0020] Figure 4 This application provides structural schematic diagrams of some telescopic rods in its embodiments;

[0021] Figure 5 This application provides a schematic diagram of the structure in which some telescopic rods are stored in a first storage space.

[0022] Figure 6 This application provides some structural schematic diagrams of telescopic rod extension in its embodiments;

[0023] Figure 7This application provides structural schematic diagrams of some supports in its embodiments;

[0024] Figure 8 This application provides some structural schematic diagrams of the first retaining rings in its embodiments;

[0025] Figure 9 This application provides structural schematic diagrams of some tie rod structures in its embodiments;

[0026] Figure 10 This application provides exploded schematic diagrams of some tie rod structures in its embodiments;

[0027] Figure 11 This application provides some structural schematic diagrams of the second retaining rings;

[0028] Figure 12 This application provides some explosion diagrams of energy storage devices;

[0029] Figure 13 This application provides some structural schematic diagrams of foot pad brackets.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Tie rod structure;

[0032] 10. Bottom shell; 11. Telescopic space; 12. First storage space; 13. First snap-fit ​​part; 14. First positioning component; 15. First slot; 16. Second retaining ring;

[0033] 20. Telescopic rod; 21. Rod body; 22. Handle; 23. First positioning hole; 24. Second fixing hole; 25. First protrusion;

[0034] 30. Bracket; 31. Support platform; 32. Second snap-fit ​​part; 33. First retaining ring; 34. First fixing hole; 35. Second positioning hole;

[0035] 40. Connecting rod;

[0036] 50. First fixing plate; 51. First end; 511. First bayonet;

[0037] 60. Casters; 61. Bearings;

[0038] 70. Caster wheel cover;

[0039] 80. Anti-slip mat;

[0040] 90. First screw;

[0041] 200. Battery pack;

[0042] 300. Middle frame; 301. Second storage space; 302. Third fixing hole;

[0043] 400, Front shell;

[0044] 500. Foot pad bracket; 501. First fixing component;

[0045] 1000. Energy storage devices;

[0046] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0047] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0048] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "several" means more than one, unless otherwise explicitly defined.

[0049] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Furthermore, the technical features involved in the different embodiments of this application described below may be combined with each other as long as they do not conflict with each other.

[0050] In a first aspect, embodiments of this application provide a tie rod structure 100 for an energy storage device 1000, please refer to... Figure 1 The energy storage device 100 has a tie rod structure 100 including a bottom shell 10, a telescopic rod 20 and a bracket 30, with the telescopic rod 20 disposed between the bottom shell 10 and the bracket 30.

[0051] For the aforementioned bottom shell 10, please refer to Figure 1 and Figure 2 The bottom shell 10, located at the very bottom of the tie rod structure 100, serves as the basic carrier of the tie rod structure 100, supporting the bracket 30, telescopic rod 20, and other structures. It is in direct contact with the placement surface to transfer the force from the upper part of the bottom shell 10 to the placement surface, ensuring the overall stability of the tie rod structure 100. The bottom shell 10 needs to possess sufficient structural strength to enhance its load-bearing capacity. For example, it can be made of rigid plastic or metal.

[0052] For the aforementioned bracket 30, please refer to Figure 1 and Figure 3The bracket 30 is disposed on the bottom shell 10, and the bracket 30 and the bottom shell 10 can form a double-shell structure. The bracket 30 is located at the top of the tie rod structure 100 and is used to bear the weight of the item and transfer the load to the bottom shell 10 to distribute the weight of the item. Among them, the side of the bracket 30 opposite to the bottom shell 10 forms a support platform 31, which is constructed to support the battery pack 200. The battery pack 200 is fixed to the support platform 31 by screws, buckles and other structures, so that the battery pack 200 does not shake during movement.

[0053] A telescopic space 11 and a first storage space 12 are formed between the bracket 30 and the base shell 10. The first storage space 12 is completely disposed within the cavity formed by the bracket 30 and the base shell 10, while the telescopic space 11 is partially disposed within the cavity and communicates with the outside. The first storage space 12 communicates with the telescopic space 11, allowing the telescopic rod 20 to extend or shorten without obstruction to complete the adjustment function.

[0054] For the aforementioned telescopic rod 20, please refer to... Figure 1 and Figure 4 The telescopic rod 20 includes a rod body 21 and a handle 22 connected to the rod body 21. The rod body 21 adjusts the length of the telescopic rod 20 by extending and retracting, enabling convenient storage and extended use. The handle 22 is a component that the user can directly grip. Please refer to... Figure 5 When the telescopic rod 20 retracts, the rod body 21 shortens and is partially stored in the telescopic space 11, and the handle 22 can be accommodated in the first storage space 12. This reduces the volume of the energy storage device 1000 and minimizes the possibility of the handle 22 being exposed and taking up space or being damaged by collision, thus achieving the function of "hidden storage". Please refer to... Figure 6 When the telescopic rod 20 is extended, the handle 22 is disengaged from the first storage space 12, and the extended length of the rod body 21 allows the user to hold the handle 22 with one hand, making it convenient for the user to pull the entire energy storage device 1000 and improving the ease of movement of the energy storage device 1000.

[0055] Please refer to Figure 1 and Figure 2 Along the telescopic direction of the rod 21 (second direction Y), where the second direction Y is bidirectional, a first locking part 13 and a first positioning member 14 are sequentially arranged within the telescopic space 11. The first locking part 13 is closer to the first storage space 12 than the first positioning member 14. Furthermore, in combination with... Figure 7 and Figure 8 The bracket 30 is provided with a second locking part 32. The first locking part 13 and the second locking part 32 are arranged opposite to each other and together form a first locking ring 33. The first locking ring 33 is locked onto the outer ring of the telescopic rod 20.

[0056] For further details, please refer to Figure 8 and Figure 9The first retaining ring 33 is engaged with the outer ring of the rod 21. The inner diameter of the first retaining ring 33 is slightly larger than the outer diameter of the rod 21. The first retaining ring 33 is located at the front end of the extension and retraction path of the rod 21. The first retaining ring 33 can both allow the rod 21 to slide and limit the radial displacement of the rod 21 during the extension and retraction movement, such as left and right swaying, to ensure that the rod 21 extends and retracts stably along the axial direction and reduce the phenomenon of jamming or structural wear caused by the displacement of the rod 21.

[0057] Please refer to Figure 1 , Figure 2 and Figure 4 The rod body 21 has a first positioning hole 23 at the end away from the handle 22. The first positioning member 14 passes through the first positioning hole 23, so that the bottom shell 10 is fixed to the rod body 21, thereby improving the stability of the connection between the rod body 21 and the bottom shell 10.

[0058] For further details, please refer to Figure 1 , Figure 4 and Figure 7 Along the extension and retraction direction of the rod 21 (second direction Y), the bracket 30 has a first fixing hole 34, which is away from the first storage space 12. The end of the rod 21 away from the handle 22 also has a second fixing hole 24. The first positioning hole 23 and the second fixing hole 24 are arranged opposite to each other along the direction from the bottom shell 10 to the bracket 30. Screws are inserted into the first fixing hole 34 and the second fixing hole 24 to fix the bracket 30 and the rod 21.

[0059] The first positioning component 14 fixes the bottom shell 10 to the rod body 21, and the screws fix the bracket 30 to the rod body 21, thus fixing the bottom shell 10, bracket 30, and telescopic rod 20 together, improving the stability of the pull rod structure 100. The first positioning hole 23 and the second fixing hole 24 are both located on the non-extendable part of the rod body 21. By fixing them to the bottom shell 10 and bracket 30, the swaying of the telescopic rod 20 can be reduced, improving the stability of the telescopic rod 20 during extension and retraction.

[0060] In this embodiment, the pull rod structure 100 of the energy storage device 1000 includes a base shell 10, a telescopic rod 20, and a bracket 30. The bracket 30 is disposed on the base shell 10, and a telescopic space 11 and a first storage space 12 are formed between the bracket 30 and the base shell 10. The first storage space 12 communicates with the telescopic space 11. The telescopic rod 20 includes a rod body 21 and a handle 22 connected to the rod body 21. The rod body 21 is telescopically disposed in the telescopic space 11. The first storage space 12 is used to store the handle 22, reducing the volume of the energy storage device 1000 and reducing the possibility of the handle 22 being exposed and occupying space or being damaged by collision, thus achieving "hidden storage". When the telescopic rod 20 is extended, the extended length of the rod body 21 allows the user to grip the handle 22, making it convenient for the user to pull the entire energy storage device 1000 and improving the ease of movement of the energy storage device 1000. Along the telescopic direction of the rod 21, a first engaging portion 13 and a first positioning member 14 are sequentially arranged within the telescopic space 11. The first engaging portion 13 is closer to the first storage space 12 than the first positioning member 14. A second engaging portion 32 is provided on the bracket 30. The first engaging portion 13 and the second engaging portion 32 together form a first retaining ring 33, which engages with the outer ring of the telescopic rod 20. The first retaining ring 33 allows the rod 21 to slide while limiting its radial displacement during telescopic movement, ensuring stable axial telescopic extension and retraction of the rod 21, improving its stability during telescopic movement, and reducing the likelihood of jamming or structural wear due to displacement. A first positioning hole 23 is provided at the end of the rod 21 furthest from the handle 22. The first positioning member 14 passes through the first positioning hole 23, fixing the bottom shell 10 to the rod 21. This design is not only simple in structure and convenient for installation and disassembly, but also helps improve the stability of the connection between the rod 21 and the bottom shell 10. The bracket 30 forms a support platform 31 on the side opposite to the bottom shell 10. The support platform 31 is configured to support the battery pack 200. The combination of the above-mentioned tie rod structure 100 and the battery pack 200 facilitates the portable movement of the energy storage device 1000, reduces the space occupied, improves the load-bearing strength of the tie rod structure 100, and enhances the stability of the energy storage device 1000.

[0061] In some embodiments, please refer to Figure 4 and Figure 7The rod 21 has a first protrusion 25 at the end near the handle 22, which faces the bracket 30. The bracket 30 has a second positioning hole 35 at the end near the second locking part 32. When the rod 21 is placed in the telescopic space 11, the first protrusion 25 is engaged with the second positioning hole 35. When the telescopic rod 20 is in the extended state, due to the long length of the rod 21, it is prone to swaying. The first fixing hole 34 and the second fixing hole 24 fix the end of the rod 21 away from the handle 22 to the bracket 30. The first protrusion 25 and the second fixing hole 24 fix the end of the rod 21 near the handle 22 to the bracket 30, thereby fixing both ends of the rod 21 to the bracket 30, further improving the stability between the rod 21 and the bracket 30, and reducing the phenomenon of the rod 21 loosening or sliding due to external forces such as vibration and tilting in the telescopic state.

[0062] In some embodiments, please refer to Figure 10 The bottom shell 10 has a first slot 15 at the end furthest from the first storage space 12. The pull rod structure 100 also includes a connecting rod 40, which is disposed in the first slot 15. The shape of the first slot 15 is adapted to the outer ring of the connecting rod 40, for example, the first slot 15 is semi-circular or U-shaped. The first slot 15 is used to limit the radial displacement of the connecting rod 40, ensuring that the mounting position of the connecting rod 40 on the bottom shell 10 is fixed and reducing the offset of the connecting rod 40 caused by vibration. The two ends of the connecting rod 40 extend out from both sides of the bottom shell 10, providing a rotation center for the caster 60, allowing the caster 60 to rotate 360°, realizing the flexible movement of the entire energy storage device 1000. The pull rod structure 100 also includes a first fixing plate 50, which covers the first slot 15 and is fixed to the bottom shell 10, reducing the phenomenon of the connecting rod 40 falling out of the first slot 15 during movement.

[0063] For further details, please refer to Figure 10 and Figure 11 Along the first direction X, the first fixing plate 50 includes a first end 51, which bends toward the bottom shell 10. The first end 51 has a first latch 511, which, together with the first slot 15, forms a second retaining ring 16. The second retaining ring 16 is engaged with the outer ring of the connecting rod 40. The second retaining ring 16 further restricts the radial sway of the connecting rod 40, such as left-right or up-down displacement, to ensure the stability of the caster 60 during rotation. The first direction X, the extension and retraction direction of the rod 21 (second direction Y), and the direction from the bottom shell 10 to the bracket 30 (third direction Z) are all perpendicular to each other.

[0064] Along the first direction X, the first fixing plate 50 includes a second end opposite to the first end 51. The second end is bent toward the bottom shell 10 and has a second latch. The second latch and the first groove together form a third retaining ring, which is engaged with the outer ring of the connecting rod 40. The function of the third retaining ring is similar to that of the second retaining ring 16. The second retaining ring 16 and the third retaining ring work together on the connecting rod 40 to further enhance the stability of the connecting rod 40.

[0065] In some embodiments, please refer to Figure 10 The pull rod structure 100 also includes a caster 60, which includes a bearing 61. A connecting rod 40 extends into the bearing 61 and connects to the caster 60, allowing the caster 60 to rotate freely around the connecting rod 40. The caster 60 is in direct contact with the ground, and the caster 60 drives the pull rod structure 100 to move as a whole, which can meet the portable movement requirements of the energy storage device 1000.

[0066] In some embodiments, please refer to Figure 10 The pull rod structure 100 also includes a caster 60 cover, which partially covers the caster 60. The caster 60 cover can conceal the internal structure and hardware of the caster 60, making the overall product more aesthetically pleasing. In addition, the caster 60 cover can conceal the bearing 61, reducing contamination of the bearing 61 by water or foreign objects, reducing the occurrence of rust or seizing of the bearing 61, and extending the service life of the caster 60.

[0067] In some embodiments, please refer to Figure 1 The pull rod structure 100 also includes an anti-slip pad 80, which is located on the side of the base shell 10 away from the bracket 30. When the energy storage device 1000 is placed on the ground or a table, the anti-slip pad 80 can enhance the friction between the base shell 10 and the contact surface, thereby enhancing the stability of the energy storage device 1000. Furthermore, the anti-slip pad 80 has a certain degree of elasticity, which can cushion the rigid contact between the base shell 10 and the placement surface when the energy storage device 1000 is placed on the ground or moved slightly, thus providing shock absorption. The anti-slip pad 80 is typically made of materials such as rubber or silicone, and its surface can be enhanced with textured patterns, raised dots, etc., to further increase the friction between the anti-slip pad 80 and the placement surface.

[0068] Secondly, this application also provides an energy storage device 1000, please refer to... Figure 12 The energy storage device 1000 includes a pull rod structure 100, a battery pack 200, a middle frame 300, and a front shell 400 as described in any of the first aspects. The middle frame 300 has a second storage space 301 on the side facing the pull rod structure 100. The battery pack 200 is housed in the second storage space 301. The support platform 31 of the pull rod structure 100 supports the battery pack 200. The middle frame 300 is disposed between the pull rod structure 100 and the front shell 400 and is fixed to both the pull rod structure 100 and the front shell 400.

[0069] The middle frame 300 has a certain structural strength. The middle frame 300 is located between the tie rod structure 100 and the front shell 400, and is fixed to the tie rod structure 100 and the front shell 400 respectively. The tie rod structure 100, the middle frame 300 and the front shell 400 are integrated into a whole, so that the energy storage device 1000 has a certain integrity and rigidity.

[0070] The battery pack 200 is housed in the second storage space 301. The spatial contour of the second storage space 301 restricts the displacement of the battery pack 200, reducing battery swaying when the energy storage device 1000 is moved or vibrated. The second storage space 301 and the support platform 31 cooperate to double-fix the battery pack 200, ensuring the structural stability of the battery pack 200.

[0071] The aforementioned front housing 400 is equipped with components such as a control panel, buttons, and interfaces. The front housing 400 serves as the front outer shell of the energy storage device 1000 and protects the internal components.

[0072] In some embodiments, please refer to Figure 12 The pull rod structure 100 also includes a first screw 90, which passes through the battery pack 200, the middle frame 300 and the front shell 400. The first screw 90 is threadedly connected to the front shell 400, so that the battery pack 200, the middle frame 300 and the front shell 400 are locked together as one unit along the direction from the pull rod structure 100 to the front shell 400, reducing the loosening of parts caused by vibration and movement.

[0073] In some embodiments, please refer to Figure 12 and Figure 13 The energy storage device 1000 also includes a foot support 500 and a first fixing member 501. The foot support 500 is fixedly connected to the first fixing member 501. The middle frame 300 has a third fixing hole 302, and the front shell 400 has a fourth fixing hole. The first fixing member 501 passes through the third fixing hole 302 and the fourth fixing hole in sequence and is fixedly connected to the front shell 400, so that the front shell 400, the middle frame 300, and the foot support 500 are fixed together. The foot support 500 is set at the corner where the three sides are connected, which improves the structural strength of the middle frame 300, the front shell 400, and the foot support 500. When the energy storage device 1000 stops moving and is placed on the placement surface, the force on the foot support 500 is transmitted to the middle frame 300 and the front shell 400, reducing damage to local structures and improving the overall deformation resistance of the energy storage device 1000.

[0074] The foot pad bracket 500, as the energy storage device 1000, is in direct contact with the placement surface. The foot pad bracket 500 is typically made of materials such as rubber or silicone to cushion the impact during placement and reduce wear caused by the hard shell directly contacting the ground. The first fixing component 501 includes screws, bolts, pins, and screws.

[0075] Furthermore, the foot pad bracket 500 is positioned close to the first screw 90. When the foot pad bracket 500 is impacted, the impact force can be quickly transmitted to other components through the screw, thereby reducing damage to the local structure. At least two foot pad brackets 500 are provided to accommodate uneven outdoor ground.

[0076] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A tie rod structure of an energy storage device, characterized by, The device includes a base, a telescopic rod, and a bracket. The bracket is disposed on the base, and a telescopic space and a first storage space are formed between the bracket and the base. The first storage space communicates with the telescopic space. The telescopic rod includes a rod body and a handle connected to the rod body. The rod body is telescopically disposed in the telescopic space, and the first storage space is used to store the handle. Along the extension and retraction direction of the rod, a first snap-fit ​​part and a first positioning member are sequentially arranged in the extension and retraction space. The first snap-fit ​​part is closer to the first storage space than the first positioning member. The bracket is provided with a second snap-fit ​​part, and the first snap-fit ​​part and the second snap-fit ​​part together form a first snap-fit ​​ring, which snaps onto the outer ring of the telescopic rod; The rod body has a first positioning hole at the end away from the handle, and the first positioning member passes through the first positioning hole so that the bottom shell is fixed to the rod body; The bracket has a support platform on the side facing away from the bottom shell, and the support platform is configured to support the battery pack.

2. The pull rod structure according to claim 1, characterized by The rod body has a first protrusion at one end near the handle, and the bracket has a second positioning hole at one end near the second locking part. When the rod body is placed in the telescopic space, the first protrusion is locked into the second positioning hole.

3. The pull rod structure of claim 1, wherein The bottom shell has a first slot at the end away from the first storage space. The pull rod structure also includes a connecting rod and a first fixing plate. The connecting rod is disposed in the first slot, and the first fixing plate covers the first slot and is fixed to the bottom shell.

4. The pull rod structure according to claim 3, characterized by Along the first direction, the first fixing plate includes a first end, which is bent toward the bottom shell. The first end has a first slot, which together with the first slot forms a second retaining ring. The second retaining ring is engaged with the outer ring of the connecting rod. The first direction, the extension and retraction direction of the rod, and the direction from the bottom shell to the bracket are all perpendicular to each other.

5. The pull rod structure of claim 3, wherein The pull rod structure also includes a caster, the caster includes a bearing, and the connecting rod extends into the bearing and connects to the caster.

6. The pull rod structure of claim 5, wherein The pull rod structure also includes a caster cover, which partially covers the caster.

7. The pull rod structure according to any one of claims 1 to 6, characterized in that, The pull rod structure also includes an anti-slip pad, which is disposed on the side of the bottom shell opposite to the bracket.

8. An energy storage device, characterized by, The device includes a pull rod structure, a battery pack, a middle frame, and a front shell as described in any one of claims 1 to 7. The middle frame has a second storage space on the side facing the pull rod structure, the battery pack is housed in the second storage space, the support platform of the pull rod structure supports the battery pack, the middle frame is disposed between the pull rod structure and the front shell, and the middle frame is fixed to both the pull rod structure and the front shell.

9. The energy storage device of claim 8, wherein, The tie rod structure also includes a first screw, which passes through the battery pack, the middle frame and the front shell, and is threadedly connected to the front shell.

10. The energy storage device of claim 8, wherein, The energy storage device also includes a foot pad bracket and a first fixing member. The foot pad bracket is fixedly connected to the first fixing member. The middle frame has a third fixing hole, and the front shell has a fourth fixing hole. The first fixing member passes through the third fixing hole and the fourth fixing hole in sequence and is fixedly connected to the front shell.

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