Universal mobile battery energy storage cabinet

Abstract

The invention discloses a universal mobile battery energy storage cabinet, and relates to the technical field of battery energy storage cabinets, the universal mobile battery energy storage cabinet comprises a mobile cabinet body, a plurality of brackets, a mounting mechanism and a battery module, the brackets are arranged in the mobile cabinet body, and the battery module is adjustably arranged on the brackets through the mounting mechanism; the mounting mechanism comprises side frames, a top limiting mechanism and a lower end limiting mechanism, the two side frames are symmetrically arranged on the bracket in a sliding mode, the battery module is located between the two side frames, the top limiting mechanism comprises a mounting shaft and a supporting arm, the mounting shaft is of a telescopic structure, and the supporting arm is of an inverted U-shaped structure; and two ends of the two supporting arms are respectively assembled and connected with four corners above the battery module. According to the invention, by utilizing the characteristics of the hyperelastic shape memory alloy, when the energy storage cabinet jolts during movement, the battery module can be controlled to swing with a certain amplitude along with the supporting arm, vibration impact can be effectively absorbed, and compared with a rigid fixed mounting mode, more excellent buffering and anti-seismic protection are provided.

Description

Technical Field

[0001] The present invention relates to the technical field of battery energy storage cabinets, and in particular to a general-purpose mobile battery energy storage cabinet. Background Art

[0002] Mobile battery energy storage cabinets are widely used in fields such as emergency power supplies, outdoor construction, electric vehicle charging, sports events, agriculture and fishery, military and special purposes. Their advantages lie in flexible deployment, environmental friendliness, plug-and-play, and can provide reliable power support in various complex environments, replacing traditional diesel generators, reducing noise and carbon emissions, and having broad market application prospects;

[0003] For example, a general-purpose mobile battery energy storage cabinet of "CN118659076A" includes a mobile cabinet body, a base, a battery fixing mechanism, a side frame, and an inflation sealing mechanism. A connecting rod is movably installed at the top inside the base, a first pulley is fixedly installed at the bottom of the connecting rod, a transmission bevel gear rod is fixedly installed at the bottom of the first pulley, and an inflation sealing mechanism is meshed and connected to one side of the transmission bevel gear rod. In the present invention, the inflation and deflation of the sealing airbag are completed by driving the inflation sealing mechanism through a switch sealing door. The sealing door is sealed and locked and unlocked and opened by the inflation and deflation of the sealing airbag. When the sealing door is closed, the telescopic rod pushes the piston to move leftward to squeeze and transport the air inside the air tank to the air pipe, and the air is transported to the sealing airbag through the air pipe to inflate and expand. The inflated sealing airbag fits tightly with the sealing door, realizing the sealing and locking of the sealing door, making the connection between the sealing door and the mobile cabinet body sealed against water and dust, and effectively increasing the safety of the mobile cabinet body;

[0004] However, in the prior art, mobile battery energy storage cabinets need to be transferred in various scenarios, and most of the ground they pass through is not flat. During the transfer process, the batteries inside the battery energy storage cabinet will inevitably shake. If directly tightened with screws, the screws may become loose during large-amplitude shaking, and even directly cause damage to the internal batteries when the ground has a large pothole amplitude, which is not conducive to the transfer of the energy storage cabinet. Summary of the Invention

[0005] In view of the above existing problems, the present invention is proposed.

[0006] The purpose of the present invention is to solve the problem that in the prior art, when a general battery energy storage cabinet walks on rough ground, the internal battery is prone to vibration, which may cause damage to the battery itself.

[0007] To solve the above technical problems, the present invention provides the following technical solutions:

[0008] On the one hand, the present invention provides a general-purpose mobile battery energy storage cabinet, which includes a mobile cabinet body, brackets, an installation mechanism, and battery modules. A plurality of brackets are provided and arranged inside the mobile cabinet body. The battery modules are adjustably arranged on the brackets through the installation mechanism. The installation mechanism includes side frames, a top limiting mechanism, and a lower end limiting mechanism. Two side frames are provided and symmetrically slidably arranged on the brackets. The battery modules are located between the two side frames. The top limiting mechanism includes an installation shaft and a support arm. The installation shaft is a telescopic structure, and the support arm is an inverted U-shaped structure. Both ends of the two support arms are respectively assembled and connected to the four corners above the battery modules. The end face of the installation shaft is assembled and connected to the center position of the support arm, and the end face of the installation shaft is assembled and connected to the side frame. The lower end limiting mechanism includes a slide rail and a limiting angle. The slide rail is arranged below the inner side of the side frame. The limiting angle is slidably arranged on the slide rail through a slider. The end face of the slide rail is assembled and connected to the limiting angle through an S-shaped plate. A plurality of limiting angles are provided and are respectively located at the four corners of the lower end of the battery module. Both the support arm and the S-shaped plate are super-elastic shape memory alloys.

[0009] Further, the S-shaped plate is in an S-shaped unfolded state without external force, and the S-shaped plate undergoes elastic deformation and transforms into an S-shaped contracted state under the action of external force.

[0010] Further, the limiting angle is set in a right-angle structure, and the end of the limiting angle facing the battery module extends away from the battery module. A buffer airbag is arranged inside the limiting angle. Through the arranged limiting angle, when the limiting angle approaches the battery module, the limiting angle can be smoothly clamped into the corners of the battery module. The arranged buffer airbag further buffers between the battery module and the limiting angle.

[0011] Further, an installation head is arranged at the upper end of the battery module. The end face of the support arm is sleeved on the installation head. A second bolt is arranged on the installation head. The second bolt threadedly penetrates through the support arm and the installation head and is assembled and connected through a nut.

[0012] Further, the installation shaft includes an inner shaft, an outer shaft, and an adjustment sleeve. The inner shaft is slidably arranged inside the outer shaft. The adjustment sleeve is rotatably arranged on the end face of the outer shaft. The outer wall of the inner shaft is provided with internal threads, and one end of the adjustment sleeve is provided with external threads adapted to the internal threads. End frames for assembling and connecting with the support arm are respectively arranged on the end faces of the inner shaft and the outer shaft. By rotating the adjustment sleeve, and the adjustment sleeve is threadedly connected with the inner shaft. At this time, the inner shaft displaces relative to the adjustment sleeve, and the inner shaft and the outer shaft are only slidably connected. At this time, the inner shaft can slide inside the outer shaft, so as to achieve the effect of adjusting the length of the installation shaft.

[0013] Further, an installation plate is provided above the inner side of the side frame through a buffer pad. A first bolt is provided on the end frame, and a plurality of threaded holes are longitudinally formed in the side frame. One end of the first bolt penetrates through the end frame, the installation plate and the buffer pad and is threadedly assembled and connected with the threaded holes. The installation plate is fixed to the side frame through the first bolt. Through the provided plurality of threaded holes, battery modules with different heights can be adapted.

[0014] Further, a buffer member is provided on the inner side of the side frame below the support arm. The buffer member includes a fixed seat, a ball and a spring. The fixed seat is arranged on the side frame. An assembly groove is formed at one end of the fixed seat facing the battery module. The ball is assembled and connected with the spring in the assembly groove. The ball is only slidably arranged with the spring and the inner wall of the assembly groove. Reinforcing plates are symmetrically arranged on both outer sides of the battery module. The outer end of the ball abuts against the reinforcing plate on the outer wall of the battery module. When the moving cabinet vibrates during the moving process, the battery module can swing left and right under the deformation action of the support arm. At this time, through the limit of the buffer members on both sides, the amplitude of its left and right swing can be greatly limited. The spring's pushing of the ball can buffer its small-amplitude swing. The function of the reinforcing plate is to avoid the problem of damage to the outer wall of the battery module caused by the long-term extrusion contact between the ball and the battery module.

[0015] Further, a bidirectional lead screw is threadedly penetrated above the side frame. The two side frames are symmetrically arranged on the bidirectional lead screw. By rotating the bidirectional lead screw, the two side frames can be driven to move synchronously and in opposite directions, facilitating the disassembly and installation of the battery module.

[0016] Further, a plurality of brackets are longitudinally arranged in the moving cabinet. Each bracket is provided with multiple groups of installation mechanisms. A plurality of bidirectional lead screws are provided and are adapted to the number of installation mechanisms. The end faces of adjacent bidirectional lead screws are rotatably connected. A threaded sleeve adapted to the bidirectional lead screw is provided on the side frame. By providing multiple groups of installation mechanisms on the bracket and each installation mechanism being controlled by a separate bidirectional lead screw, the installation of other battery modules will not be affected when performing maintenance operations on one of the battery modules.

[0017] Further, a chute is provided above the bracket, and a sliding block slidably arranged with the chute is provided at the lower end of the side frame to ensure the stability of the side frame.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. When the mobile cabinet of the present invention passes over rough ground, it will cause the brackets and side frames inside the mobile cabinet to vibrate accordingly. When the vibration is small, the buffer pads between the side frame and the mounting shaft can achieve buffering to protect the safety of the battery module. When the vibration amplitude is large, the stress generated by the vibration is transmitted to the support arm. Since the support arm is made of superelastic shape memory alloy, it will deform under the action of external force and has a certain flexible buffering ability. And the S-shaped plate is also made of superelastic shape memory alloy. At this time, the battery module can swing in a certain amplitude under control along with the support arm. The S-shaped plate contracts to the preset compressed S-shaped state under the stress brought by the vibration. The limiting angle gradually separates from the battery module, providing a certain space for the swing of the battery module. The swing of the support arm driving the battery module effectively absorbs the vibration impact, providing better buffering and earthquake protection compared with the rigid fixed installation method. After the vibration sensation weakens and disappears, due to its superelastic characteristics, the support arm will gradually return to its previous firm state, and the S-shaped plate also returns to the unfolded S-shaped state, pushing the limiting angle towards the battery module to gradually limit the battery module until a rigid connection is formed with the side frame to ensure the stability and structural integrity of the system.

[0020] 2. In the present invention, the support arm and the S-shaped plate are made of superelastic shape memory alloy. Due to their special properties, they swing step by step controllably during vibration and also return to their original positions step by step during reset. The process is smoother and there is no impact on the battery module, avoiding the situation of secondary vibration or loosening of battery terminals caused by rapid rebound.

[0021] 3. When the present invention generates vibration when passing over a rough road surface, the connection method between the internal battery module and the side frame changes from a rigid connection to a flexible connection gradually by itself, without manual intervention or the drive of an additional drive source, making it more flexible and convenient to use.

[0022] 4. In the present invention, by setting multiple groups of installation mechanisms on the bracket, and each installation mechanism is controlled by an independent bidirectional lead screw, when performing maintenance operations on one battery module, it will not affect the installation of other battery modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a three-dimensional view of a general-purpose mobile battery energy storage cabinet provided by the present invention;

[0025] Figure 2Schematic diagram of the installation mechanism and battery module assembly of a general-purpose mobile battery energy storage cabinet provided by the present invention;

[0026] Figure 3 Schematic diagram of the installation mechanism of a general-purpose mobile battery energy storage cabinet provided by the present invention;

[0027] Figure 4 Schematic diagram of the side frame of a general-purpose mobile battery energy storage cabinet provided by the present invention;

[0028] Figure 5 Schematic diagram of the support arm of a general-purpose mobile battery energy storage cabinet provided by the present invention;

[0029] Figure 6 Schematic diagram of the battery module of a general-purpose mobile battery energy storage cabinet provided by the present invention;

[0030] Figure 7 Schematic diagram of the buffer member of a general-purpose mobile battery energy storage cabinet provided by the present invention;

[0031] Figure 8 Schematic diagram of the internal structure of the installation shaft of a general-purpose mobile battery energy storage cabinet provided by the present invention;

[0032] Figure 9 Schematic diagram of the assembly of the limiting angle and the S-shaped plate of a general-purpose mobile battery energy storage cabinet provided by the present invention.

[0033] Legend:

[0034] 1. Mobile cabinet; 2. Bracket; 3. Battery module; 4. Side frame; 511. Installation shaft; 512. Support arm; 611. Slide rail; 612. Limiting angle; 613. Slide block; 614. S-shaped plate; 7. Buffer airbag; 811. Installation head; 812. Second bolt; 911. Inner shaft; 912. Outer shaft; 913. Adjusting sleeve; 914. End frame; 101. Buffer pad; 102. Installation plate; 103. First bolt; 104. Threaded hole; 111. Fixed seat; 112. Ball; 113. Spring; 114. Assembly groove; 115. Reinforcing plate; 121. Bidirectional lead screw; 122. Threaded sleeve; 131. Chute; 132. Sliding block. Detailed implementation manners

[0035] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0036] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways than those specifically described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0037] Secondly, as used herein, "an embodiment" or "embodiments" refer to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in an embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0038] Please refer to Figures 1-9 , the present invention provides a technical solution: a general-purpose mobile battery energy storage cabinet, which includes a mobile cabinet body 1, a bracket 2, a mounting mechanism, and a battery module 3. There are multiple brackets 2 and they are arranged inside the mobile cabinet body 1. The battery module 3 is adjustably arranged on the bracket 2 through the mounting mechanism. The mounting mechanism includes side frames 4, a top limiting mechanism, and a lower end limiting mechanism. There are two side frames 4 and they are symmetrically and slidably arranged on the bracket 2. The battery module 3 is located between the two side frames 4. The top limiting mechanism includes a mounting shaft 511 and a support arm 512. The mounting shaft 511 is a telescopic structure, and the support arm 512 is an inverted U-shaped structure. The two ends of the two support arms 512 are respectively assembled and connected to the four corners above the battery module 3. The end face of the mounting shaft 511 is assembled and connected to the center position of the support arm 512, and the end face of the mounting shaft 511 is assembled and connected to the side frame 4. The lower end limiting mechanism includes a slide rail 611 and a limiting angle 612. The slide rail 611 is arranged below the inner side of the side frame 4. The limiting angle 612 is slidably arranged on the slide rail 611 through a slider 613. The end face of the slide rail 611 is assembled and connected to the limiting angle 612 through an S-shaped plate 614. There are multiple limiting angles 612 and they are respectively located at the four corners of the lower end of the battery module 3. The support arm 512 and the S-shaped plate 614 are both super-elastic shape memory alloys.

[0039] As Figures 1-9 shown, the S-shaped plate 614 is in an S-shaped unfolded state without external force. The S-shaped plate 614 undergoes elastic deformation under the action of external force and transforms into an S-shaped contracted state.

[0040] As Figures 1-9 shown, the limiting angle 612 is set in a right-angle structure. The end of the limiting angle 612 facing the battery module 3 extends away from the battery module 3. A buffer airbag 7 is provided inside the limiting angle 612. By providing the limiting angle 612, when the limiting angle 612 approaches the battery module 3, the limiting angle 612 can be smoothly clamped into the corner of the battery module 3. The provided buffer airbag 7 further buffers between the battery module 3 and the limiting angle 612.

[0041] AsFigures 1-9 As shown, on the mounting head 811, a second bolt 812 is provided on the mounting head 811. The second bolt 812 threadedly penetrates through the support arm 512 and the mounting head 811 and is assembled and connected through a nut.

[0042] As Figures 1-9 shown, the mounting shaft 511 includes an inner shaft 911, an outer shaft 912, and an adjusting sleeve 913. The inner shaft 911 is slidably disposed inside the outer shaft 912. The adjusting sleeve 913 is rotatably disposed on the end face of the outer shaft 912. An internal thread is provided on the outer wall of the inner shaft 911. An external thread adapted to the internal thread is provided at one end of the adjusting sleeve 913. End frames 914 for assembling and connecting with the support arm 512 are respectively provided on the end faces of the inner shaft 911 and the outer shaft 912. By rotating the adjusting sleeve 913, and the adjusting sleeve 913 is threadedly connected with the inner shaft 911. At this time, the inner shaft 911 is displaced relative to the adjusting sleeve 913, and the inner shaft 911 is only slidably connected with the outer shaft 912. At this time, the inner shaft 911 can slide inside the outer shaft 912, so as to achieve the effect of adjusting the length of the mounting shaft 511.

[0043] As Figures 1-9 shown, above the inner side of the side frame 4, a mounting plate 102 is provided through a buffer pad 101. A first bolt 103 is provided on the end frame 914. A plurality of threaded holes 104 are longitudinally formed on the side frame 4. One end of the first bolt 103 penetrates through the end frame 914, the mounting plate 102, and the buffer pad 101 and is threadedly assembled and connected with the threaded hole 104. The mounting plate 102 is fixed to the side frame 4 through the first bolt 103. Through the provided plurality of threaded holes 104, battery modules 3 of different heights can be adapted.

[0044] As Figures 1-9 shown, a buffer member is provided inside the side frame 4 below the support arm 512. The buffer member includes a fixed seat 111, a ball 112, and a spring 113. The fixed seat 111 is provided on the side frame 4. An assembly groove 114 is formed at one end of the fixed seat 111 facing the battery module 3. The ball 112 is assembled and connected with the spring 113 in the assembly groove 114. The ball 112 is only slidably disposed with the spring 113 and the inner wall of the assembly groove 114. Reinforcing plates 115 are symmetrically provided on both outer sides of the battery module 3. The ball 112 disposed at the outer end abuts against the reinforcing plate 115 on the outer wall of the battery module 3. When the moving cabinet 1 vibrates during the moving process, the battery module 3 can swing left and right under the deformation action of the support arm 512. At this time, through the limiting of the buffer members on both sides, the amplitude of its left and right swing can be greatly limited. The pushing of the spring 113 on the ball 112 can buffer its small-amplitude swing. The function of the reinforcing plate 115 is to avoid the problem that the long-term extrusion contact between the ball 112 and the battery module 3 causes damage to the outer wall of the battery module 3.

[0045] As Figures 1-9As shown, a bidirectional lead screw 121 is threaded above the side frame 4. Two side frames 4 are symmetrically arranged on the bidirectional lead screw 121. By rotating the bidirectional lead screw 121, the two side frames 4 can be driven to move synchronously and in opposite directions, facilitating the disassembly and installation of the battery module 3.

[0046] As Figures 1-9 shown, a plurality of brackets 2 are longitudinally arranged in the moving cabinet 1. Each bracket 2 is provided with a plurality of groups of mounting mechanisms. A plurality of bidirectional lead screws 121 are provided and are adapted to the number of mounting mechanisms. The end faces of adjacent bidirectional lead screws 121 are rotatably connected. A threaded sleeve 122 adapted to the bidirectional lead screw 121 is provided on the side frame 4. By providing a plurality of groups of mounting mechanisms on the bracket 2 and each mounting mechanism being controlled by a separate bidirectional lead screw 121, the installation of other battery modules 3 will not be affected when performing maintenance operations on one of the battery modules 3.

[0047] As Figures 1-9 shown, a chute 131 is provided above the bracket 2, and a sliding block 132 slidably arranged with the chute 131 is provided at the lower end of the side frame 4 to ensure the stability of the side frame 4.

[0048] Working principle: When installing the battery module 3, first place the battery module 3 between the two side frames 4. Slide the two side frames 4 closer on the bracket 2 to make the distance between them adapt to the battery module 3. Then, adjust the length of the mounting shaft 511 to adapt to the battery module 3. Fix the support arms 512 at both ends of the mounting shaft 511 to the four corners above the battery module 3, and fix the end face of the mounting shaft 511 to the side frame 4. At this time, the lower end of the battery module 3 is restricted by the four limit angles 612, the two sides are limited by the buffer members, and the upper end is fixed by the support arms 512, which can ensure its stability and firmness in the mobile cabinet 1. If the mobile cabinet 1 passes through rough ground during the transfer process, the bracket 2 and the side frame 4 inside the mobile cabinet 1 will vibrate accordingly. When the vibration is small, the buffer pad 101 between the side frame 4 and the mounting shaft 511 can achieve buffering to protect the safety of the battery module 3. When the vibration amplitude is large, the stress generated by the vibration is transmitted to the support arms 512. Since the support arms 512 are made of superelastic shape memory alloy, they will deform under the action of external force and have a certain flexible buffering ability. And the S-shaped plate 614 is also made of superelastic shape memory alloy. At this time, the battery module 3 can swing by a certain amplitude under the control of the support arms 512. The S-shaped plate 614 contracts to the preset compressed S-shaped state under the stress brought by the vibration. The limit angle 612 gradually separates from the battery module 3, providing a certain space for the swing of the battery module 3. The swing of the support arms 512 driving the battery module 3 effectively absorbs the vibration impact, providing better buffering and anti-seismic protection compared with the rigid fixed installation method. After the vibration sense weakens and disappears, due to its superelastic characteristics, the support arms 512 will gradually return to the previous firm state, and the S-shaped plate 614 also returns to the unfolded S-shaped state, pushing the limit angle 612 towards the battery module 3 to gradually limit the battery module 3 until a rigid connection is formed with the side frame 4 to ensure the stability and structural integrity of the system.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A universal mobile battery energy storage cabinet, comprising a mobile cabinet (1), a bracket (2), a mounting mechanism and a battery module (3), wherein the bracket (2) is provided with a plurality of brackets and is arranged inside the mobile cabinet (1), and the battery module (3) is adjustably arranged on the bracket (2) through the mounting mechanism, characterized in that: The mounting mechanism comprises a side frame (4), a top limiting mechanism and a bottom limiting mechanism. The side frame (4) is provided with two and is symmetrically slidably arranged on the bracket (2). The battery module (3) is located between the two side frames (4). The top limiting mechanism comprises a mounting shaft (511) and a support arm (512). The mounting shaft (511) is a telescopic structure. The support arm (512) is an inverted U-shaped structure. The two ends of the two support arms (512) are respectively assembled and connected to the four corners above the battery module (3). The end surface of the mounting shaft (511) is assembled and connected to the center position of the support arm (512). The end face of the mounting shaft (511) is assembled and connected with the side frame (4); the lower end limiting mechanism comprises a slide rail (611) and a limiting angle (612); the slide rail (611) is arranged at the inner side and lower part of the side frame (4); the limiting angle (612) is slidably arranged on the slide rail (611) through a slider (613); the end face of the slide rail (611) is assembled and connected with the limiting angle (612) through an S-shaped plate (614); a plurality of limiting angles (612) are provided and are respectively located at the four corners of the lower end of the battery module (3); and the support arm (512) and the S-shaped plate (614) are both made of superelastic shape memory alloy.

2. A universal mobile battery energy storage cabinet according to claim 1, characterized in that: The S-shaped plate (614) is in an S-shaped expanded state when no external force is applied, and the S-shaped plate (614) is elastically deformed and transformed into an S-shaped contracted state when an external force is applied.

3. A universal mobile battery energy storage cabinet according to claim 2, characterized in that: The limiting angle (612) is arranged as a right-angle structure, the limiting angle (612) extends towards one end of the battery module (3) and away from the battery module (3), and a buffer air bag (7) is arranged inside the limiting angle (612).

4. A universal mobile battery energy storage cabinet according to claim 3, characterized in that: The upper end of the battery module (3) is provided with a mounting head (811), the end face of the support arm (512) is sleeved on the mounting head (811), and the mounting head (811) is provided with a second bolt (812), the second bolt (812) is threadedly passed through the support arm (512) and the mounting head (811) and is assembled and connected by a nut.

5. A universal mobile battery energy storage cabinet according to claim 4, characterized in that: The mounting shaft (511) comprises an inner shaft (911), an outer shaft (912) and an adjusting sleeve (913); the inner shaft (911) is slidably arranged inside the outer shaft (912); the adjusting sleeve (913) is rotatably arranged on the end surface of the outer shaft (912); an inner thread is arranged on the outer wall of the inner shaft (911); an outer thread matching the inner thread is arranged at one end of the adjusting sleeve (913); and end frames (914) assembled and connected to the support arm (512) are respectively arranged on the end surfaces of the inner shaft (911) and the outer shaft (912).

6. A universal mobile battery energy storage cabinet according to claim 5, characterized in that: A mounting plate (102) is provided on the upper inner side of the side frame (4) through a buffer pad (101); a first bolt (103) is provided on the end frame (914); a plurality of threaded holes (104) are longitudinally opened on the side frame (4); one end of the first bolt (103) passes through the end frame (914), the mounting plate (102) and the buffer pad (101) and is threadedly assembled with the threaded hole (104).

7. A universal mobile battery energy storage cabinet according to claim 1, characterized in that: A buffer is provided on the inner side of the side frame (4) below the support arm (512), the buffer comprising a fixed seat (111), a ball (112) and a spring (113); the fixed seat (111) is arranged on the side frame (4); an assembly groove (114) is provided on one end of the fixed seat (111) facing the battery module (3); the assembly groove (114) is assembled and connected with the ball (112) through the spring (113); the ball (112) and the spring (113) and the inner wall of the assembly groove (114) are only slidably arranged; and reinforcing plates (115) are symmetrically provided on both sides of the outside of the battery module (3).

8. A universal mobile battery energy storage cabinet according to claim 1, characterized in that: A bidirectional screw rod (121) is threadedly provided above the side frame (4), and the two side frames (4) are symmetrically arranged on the bidirectional screw rod (121).

9. A universal mobile battery energy storage cabinet according to claim 8, characterized in that: A plurality of the brackets (2) are longitudinally arranged in the movable cabinet (1), and each of the brackets (2) is provided with a plurality of mounting mechanisms. A plurality of the bidirectional screw rods (121) are provided and are matched with the number of mounting mechanisms. The end faces of adjacent bidirectional screw rods (121) are rotatably connected, and a threaded sleeve (122) matched with the bidirectional screw rod (121) is provided on the side frame (4).

10. A universal mobile battery energy storage cabinet according to claim 9, characterized in that: A sliding groove (131) is provided above the bracket (2), and a sliding block (132) is provided at the lower end of the side frame (4) and is slidably arranged with the sliding groove (131).

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