Tool for lossless disassembly of power battery structural adhesive and use method of tool

Abstract

The invention discloses a tool for lossless disassembly of a power battery structural adhesive and a use method of the tool, and belongs to the technical field of new energy automobile battery maintenance devices. Comprising a portal frame and a base, sliding blocks are arranged at the bottoms of two ends of the portal frame; sliding grooves are formed in the two sides of the base. The sliding block is matched with the sliding groove. A plurality of through holes are uniformly formed in the portal frame; a pull rod pulling-up assembly, an air cylinder pulling-up assembly and a lead screw pulling-up assembly are arranged on the portal frame. The pull rod pull-up assembly pulls up a front cover and a rear cover of a battery sealing cover to generate a gap, the air cylinder pull-up assembly and the lead screw pull-up assembly are used for separating the front cover and the rear cover of the battery sealing cover, lossless disassembly is achieved when the power battery structural adhesive is disassembled, and important significance is achieved for recycling and recycling of a battery.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle battery maintenance devices, and specifically relates to a tool for non-destructively disassembling a power battery structural adhesive and a use method thereof. Background Art

[0002] About half of the power battery packs on the market use high-strength structural adhesives for bonding, which effectively ensures the bonding strength and sealing performance of the battery pack, thereby improving the overall safety and service life of the battery pack. However, this bonding method also brings certain maintenance difficulties, because the strength and durability of the structural adhesive make it difficult to disassemble the battery pack without damage when it needs to be repaired or the internal components are replaced.

[0003] In the current maintenance process, technicians usually need to use sharp metal tools to pry open the seam between the upper cover and the outer shell of the battery pack, which itself carries certain risks. Then, they use tools such as pry bars and plastic triangles to hit the opened seam to further separate the upper and lower shells of the battery pack. This operation method may bring the following risks: The use of sharp metal objects may cause battery short circuit: During operation, once a sharp metal object comes into contact with metal parts or wires inside the battery, it may cause a short circuit and lead to a safety accident.

[0004] The knocking process may generate debris. If these debris fall into the battery pack cavity, it will increase the risk of battery short circuit: During the knocking process, plastic or glue debris may be generated. If these debris enter the battery, it may cause internal circuit short circuit.

[0005] Knocking may cause deformation of the profile: Excessive knocking force may cause deformation of the battery pack profile, affecting the structural integrity and sealing performance of the battery pack, thereby reducing the safety and service life of the battery pack.

[0006] The workload of employees is heavy and the labor intensity is high: the traditional hammering method requires employees to put in a lot of effort. Carrying out this heavy physical labor for a long time is not only inefficient, but also may cause damage to the health of employees.

[0007] In order to solve the above problems, the present invention provides a tool for non-destructive disassembly of power battery structural adhesive and a method of using the tool. Summary of the invention

[0008] The present invention provides a tool for non-destructively disassembling a power battery structural adhesive and a use method thereof, which solves the risks caused by using sharp metal tools and crowbars to disassemble a battery cover in the prior art.

[0009] The present invention provides a tool for non-destructively disassembling a power battery structural adhesive and a method for using the tool, which adopts the following technical solutions: including: Gantry and base; Slide blocks are provided at the bottom of both ends of the gantry; slide grooves are provided on both sides of the base; the slide blocks and the slide grooves match each other; The gantry is evenly provided with a plurality of through holes; The gantry is provided with a pull rod lifting assembly, a cylinder lifting assembly and a lead screw lifting assembly.

[0010] Furthermore, the pull rod lifting assembly includes a fixed base and a plurality of pull rods of equal length, the number of the pull rods is the same as the number of through holes, the fixed base is fixedly installed at the connection between the front cover and the rear cover of the battery sealing cover by screws, the fixed base is provided with a plurality of threaded holes corresponding to the through holes on the gantry, both ends of the plurality of pull rods are provided with threads of equal length, one end of the pull rod is fixedly connected to the fixed base through the threaded hole, and the other end is connected with a nut through the through hole.

[0011] Furthermore, the inner wall diameter of the nut is larger than the diameter of the through hole.

[0012] Furthermore, it also includes C-shaped block 1 and C-shaped block 2. When the nut to the pull rod has no threads, a gap is generated at the connection between the front cover and the rear cover of the battery sealing cover. Two C-shaped blocks 1 are symmetrically inserted into the gap of the front cover of the battery sealing cover, and two C-shaped blocks 2 with grooves are symmetrically inserted into the gap of the rear cover; pull rings are installed on both C-shaped block 1 and C-shaped block 2.

[0013] Furthermore, the cylinder lifting assembly includes two groups of cylinders; the two groups of cylinders are symmetrically installed at both ends of the gantry; the lifting rods of the cylinders pass through the through holes at both ends of the gantry and are detachably connected with flexible chains, and the flexible chains are connected to the pull rings on one of the C-shaped blocks.

[0014] Furthermore, the lifting rod of the cylinder is provided with a plurality of fixing holes; the flexible chain is connected to the lifting rod of the cylinder via a pin passing through the fixing holes.

[0015] Furthermore, the screw lifting assembly includes two screws, both of which are D-shaped rods and have threads on the upper part; the two screws are symmetrically arranged in the through holes at both ends of the gantry; the upper part of the screw passes through the through hole of the gantry and is connected to a second nut, and the lower part is connected to a pull ring 2; between the second nut and the gantry, a D-shaped buckle is connected to the screw.

[0016] Furthermore, the inner wall diameter of the second nut is larger than the hole diameter of the D-shaped buckle.

[0017] Furthermore, a method for using a tool for non-destructive disassembly of a power battery structural adhesive comprises the following steps: S1. Place the battery pack on the base with the battery sealing cover facing upwards; S2. Slide the gantry frame onto the base and move the gantry frame to the connection between the front cover and the rear cover of the battery sealing cover; S3, fix the fixing seat at the connection between the front cover and the rear cover of the battery sealing cover by screws, screw multiple tie rods in sequence, and connect the upper part of the tie rods through the through holes of the gantry to the nuts; S4, the nuts on the upper parts of the multiple tie rods are rotated to the unthreaded part of the tie rods, so that each tie rod reaches the limit point. At this time, the connection between the front cover and the rear cover of the battery sealing cover is pulled upward, resulting in a gap. Two C-shaped blocks 1 are symmetrically inserted into the gap of the front cover of the battery sealing cover, and two C-shaped blocks 2 with grooves are symmetrically inserted into the gap of the rear cover; the C-shaped blocks 1 and 2 are both installed with pull rings; S5. Remove multiple tie rods and fixing seats, and install two sets of cylinders symmetrically at both ends of the gantry; S6. Move the gantry to a C-shaped block of the front cover of the battery sealing cover, connect the flexible chain to the C-shaped block, and use the cylinder to pull up to separate the front cover from the box body; S7. Install a new C-shaped block symmetrically at the place where the gap between the front cover and the box body is the smallest, move the gantry to the new C-shaped block, and repeat step S6 until the front cover of the battery sealing cover is removed; S8. Remove the two sets of cylinders, install the D-shaped screws, place the two sets of D-shaped buckles at both ends of the gantry, the bottom of the D-shaped screw passes through the D-shaped buckle and the through hole to connect the second pull ring, and the upper part of the D-shaped screw is installed with a second nut; S9, move the gantry to the second C-shaped block. At this time, it is necessary to install a pressure block on the side of the gantry that is also located on the base, connect the second pull ring and the pull ring on the second C-shaped block, rotate the second nut, and lift the battery sealing cover back cover by lifting the lead screw to separate the battery sealing cover back cover from the box body; S10. At the point where the gap between the rear cover and the box body is the smallest, symmetrically install the new C-shaped block 2, move the gantry to the new C-shaped block 2, and repeat step S9 until the rear cover of the battery sealing cover is removed to complete the non-destructive disassembly.

[0018] Beneficial effects of the present invention: 1. The present invention completely abandons traditional metal sharp tools and pry bars during the disassembly of the power battery pack, thereby effectively avoiding the debris that may be generated during the disassembly operation, which may cause the risk of battery short circuit in traditional methods. Through non-contact or non-destructive technical means, the present invention ensures the safety of the battery pack during the disassembly process.

[0019] 2. The present invention does not use violent knocking methods. The present invention can prevent the battery shell from being deformed, scratched, and other problems. These damages may affect the repair quality and sealing performance of the battery pack during the traditional disassembly process. Through gentle disassembly means, the present invention maintains the original structure and function of the battery pack, ensuring that the battery pack can be restored to its original performance state after repair.

[0020] 3. The present invention significantly reduces the workload of employees in dismantling operations: the traditional knocking and smashing method is not only time-consuming and labor-intensive, but also inefficient. The present invention reduces the physical labor of employees and improves the comfort and safety of operations through mechanized or automated dismantling tools.

[0021] 4. The present invention improves work efficiency. By avoiding unnecessary destructive and repetitive labor, the maintenance process is smoother, greatly shortening the time for disassembly and maintenance, thereby improving overall work efficiency, reducing maintenance costs, and providing a more efficient and safe solution for the maintenance and reuse of battery packs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0023] Figure 1 It is a structural schematic diagram of the gantry installation tie rod lifting assembly of the present invention; Figure 2 It is a structural schematic diagram of the cylinder lifting assembly installed on the gantry of the present invention; Figure 3 It is a structural schematic diagram of the lead screw lifting assembly installed on the gantry of the present invention; Figure 4 It is a schematic diagram of the structure of the C-shaped block 1 and the C-shaped block 2 of the present invention; Figure 5 It is a structural schematic diagram of the gantry of the present invention; Figure 6 It is a structural schematic diagram of the cylinder lifting assembly of the present invention; Figure 7 It is a structural schematic diagram of the D-shaped buckle of the present invention.

[0024] In the figure: 1. gantry; 2. base; 3. front cover; 4. rear cover; 5. through hole; 6. pull rod; 7. fixed seat; 8. nut; 9. C-shaped block one; 10. C-shaped block two; 11. pull ring; 12. cylinder; 13. flexible chain; 14. fixing hole; 15. pin; 16. screw; 17. second nut; 18. pull ring two; 19. D-shaped buckle. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments; in the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for the sake of clarity and brevity, the description of known functions and structures is omitted.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0027] like Figure 1-7 As shown, a specific embodiment of a tool for non-destructive disassembly of power battery structural adhesive is provided, wherein sliders are provided at the bottom of both ends of the gantry 1; slide grooves are provided on both sides of the base 2; the gantry 1 is slidably connected to the slide grooves of the base 2 through the sliders; a plurality of through holes 5 are evenly provided on the gantry 1; a pull rod lifting assembly, a cylinder lifting assembly and a lead screw lifting assembly are provided on the gantry 1.

[0028] Specifically, the pull rod lifting assembly lifts the front cover 3 and the rear cover 4 of the battery sealing cover to create a gap, and the cylinder lifting assembly and the screw lifting assembly are used to separate the front cover 3 and the rear cover 4 of the battery sealing cover. The cylinder lifting assembly is used to disassemble the front cover 3 with a small thickness, and the screw lifting assembly is used to disassemble the rear cover 4 with a large thickness, thereby achieving non-destructive disassembly when disassembling the power battery structural adhesive.

[0029] Specifically, the pull rod lifting assembly includes a fixing seat 7 and a plurality of pull rods 6 of equal length, the number of the pull rods 6 is the same as the number of the through holes 5, the fixing seat 7 is fixed at the connection between the front cover 3 and the rear cover 4 of the battery sealing cover by screws, the fixing seat 7 is provided with a plurality of threaded holes corresponding to the through holes 5 on the gantry 1, and both ends of the plurality of pull rods 6 are provided with threads of equal length, one end of the pull rod 6 is fixedly connected to the fixing seat 7 through the threaded hole, and the other end passes through the through hole 5 and is connected with a nut 8, and the inner wall diameter of the nut 8 is larger than the diameter of the through hole 5.

[0030] Specifically, since the number of the pull rods 6 is the same as the number of the through holes 5 on the gantry 1 and the pull rods 6 are of equal length, it can ensure that a uniform pulling force is applied to the battery sealing cover during the disassembly process, thereby reducing local stress concentration on the battery structure and reducing the risk of damage.

[0031] Specifically, by rotating the nut 8, the pulling length of the pull rod 6 can be accurately controlled, thereby achieving fine adjustment of the opening and closing degree of the battery sealing cover, which is conducive to non-destructive disassembly. The pull rod 6 is provided with a thread with a limited length to limit the pulling height and prevent excessive pulling and damage to the battery sealing cover.

[0032] Specifically, the fixing seat 7 is fixed to the connection of the battery sealing cover by screws, and both ends of the pull rod 6 are provided with threads, so that the installation and disassembly process of the entire lifting assembly is simple and quick, and the working efficiency is improved.

[0033] Specifically, it also includes a C-shaped block 1 9 and a C-shaped block 2 10. When there is no thread from the nut 8 to the pull rod 6, a gap is generated at the connection between the front cover 3 and the rear cover 4 of the battery sealing cover. Two C-shaped blocks 1 9 are symmetrically inserted into the gap of the front cover 3 of the battery sealing cover, and two C-shaped blocks 2 10 with grooves are symmetrically inserted into the gap of the rear cover 4; pull rings 11 are installed on both the C-shaped block 1 9 and the C-shaped block 2 10.

[0034] Specifically, the C-shaped block 1 9, the C-shaped block 2 10 and the pull ring 11 can be reused, thereby reducing the cost of long-term disassembly operations.

[0035] Specifically, the C-shaped block 1 9 and the C-shaped block 2 10 serve as support points, which can stabilize the position of the battery cover during the pulling process, prevent it from moving or tilting, and ensure the stability of the disassembly process.

[0036] Specifically, the groove is provided on the C-shaped block 10 to avoid damaging the reinforcing ribs on the rear cover 4 of the battery sealing cover.

[0037] Specifically, the cylinder lifting assembly includes two groups of cylinders 12; the two groups of cylinders 12 are symmetrically installed at both ends of the gantry 1; the lifting rods of the cylinders 12 pass through the through holes 5 at both ends of the gantry 1 and are detachably connected with flexible chains 13, the flexible chains 13 are connected to the pull rings 11 on the C-shaped block 9, and the lifting rods of the cylinders 12 are provided with multiple fixing holes 14; the flexible chains 13 are connected to the lifting rods of the cylinders 12 through the fixing holes 14 via the pins 15. This connection method is both firm and easy to adjust, thereby ensuring the stability of the lifting process.

[0038] Specifically, the cylinder 12 is used to replace manual operation, which reduces the direct contact between the operator and sharp or hot parts, improves the safety of the working environment, and the modular design of the cylinder 12 and the flexible chain 13 makes maintenance and replacement more convenient.

[0039] Specifically, the plurality of fixing holes 14 on the lifting rod of the cylinder 12 allow the flexible chain 13 to be connected at different positions, providing more adjustment options to accommodate battery packs of different sizes and shapes.

[0040] Specifically, the screw lifting assembly includes two screws 16, both of which are D-shaped rods and have threads on the upper part; the two screws 16 are symmetrically arranged in the through holes 5 at both ends of the gantry 1; the upper part of the screw 16 passes through the through hole 5 of the gantry 1 and is connected to a second nut 17, and the lower part is connected to a pull ring 18; between the second nut 17 and the gantry 1, a D-shaped buckle 19 is connected to the screw 16, and the inner wall diameter of the second nut 17 is larger than the hole diameter on the D-shaped buckle 19.

[0041] Specifically, a D-shaped buckle 19 is provided, and when the second nut 17 is rotated, the lead screw 16 can only move up and down without rotating, thereby ensuring the stability of the disassembly of the battery sealing cover and rear cover 4.

[0042] Specifically, a method for using a tool for non-destructively disassembling a power battery structural adhesive comprises the following steps: S1. Place the battery pack on the base 2 with the battery sealing cover facing upwards; S2, slidingly installing the gantry 1 on the base 2, and moving the gantry 1 to the connection between the front cover 3 and the rear cover 4 of the battery sealing cover; S3, fix the fixing seat 7 at the connection between the front cover 3 and the rear cover 4 of the battery sealing cover by screws, screw multiple tie rods 6 in sequence, and the upper part of the tie rods 6 passes through the through hole 5 of the gantry 1 to connect the nut 8; S4, the nuts 9 on the upper parts of the multiple tie rods 6 are all rotated to the unthreaded part of the tie rods 6, so that each tie rod 6 reaches the limit point. At this time, the connection between the front cover 3 and the rear cover 4 of the battery sealing cover is pulled upward, and a gap is generated. Two C-shaped blocks 1 9 are symmetrically inserted into the gap of the front cover 3 of the battery sealing cover, and two C-shaped blocks 2 10 with grooves are symmetrically inserted into the gap of the rear cover 4; the C-shaped blocks 1 9 and 10 are both installed with pull rings 11; S5, remove the multiple tie rods 6 and the fixing base 7, and symmetrically install the two sets of cylinders 12 at both ends of the gantry 1; S6, move the gantry 1 to the C-shaped block 9 of the front cover 3 of the battery sealing cover, connect the flexible chain 13 to the C-shaped block 9, and use the cylinder 12 to pull up, so that the front cover 3 and the box body are separated; S7, symmetrically install a new C-shaped block 9 at the position where the separation gap between the front cover 3 and the box body is the smallest, move the gantry 1 to the position of the new C-shaped block 9, and repeat step S6 until the front cover 3 of the battery sealing cover is removed; S8, remove the two sets of cylinders 12, install the D-shaped screw 16, place the two sets of D-shaped buckles 19 at both ends of the gantry 1, the D-shaped openings on the D-shaped buckles 19 and the axes of the through holes 5 at both ends of the gantry 1 coincide, the bottom of the D-shaped screw 16 passes through the D-shaped buckle 19 and the through hole 5 and is connected to a pull ring 2 18, and the upper part of the D-shaped screw 16 is installed with a second nut 17; S9, move the gantry 1 to the C-shaped block 10. At this time, it is necessary to install a pressure block (not shown in the figure) on the side of the gantry 1 that is also located on the base 2, connect the pull ring 18 with the pull ring 11 on the C-shaped block 10, rotate the second nut 17, and lift the battery sealing cover rear cover 4 through the lifting of the lead screw 16, so that the battery sealing cover rear cover 4 and the box body are separated; S10. At the point where the gap between the rear cover 4 and the box body is the smallest, symmetrically install a new C-shaped block 10, move the gantry 1 to the new C-shaped block 10, and repeat step S9 until the battery sealing cover and rear cover 4 are removed to complete the non-destructive disassembly.

[0043] The present invention gradually reduces the stress on the battery structure and the potential damage to the battery pack by disassembling in steps; the symmetrical insertion of C-shaped block 1 9, C-shaped block 2 10 and installation cylinder 12 ensures uniform distribution of force during disassembly and avoids distortion and deformation of the battery pack; avoids the use of sharp tools and violent disassembly and reduces the safety risks of operators; the use of automated components reduces the need for manual operation and reduces the physical labor of workers; components such as C-shaped block 1 9, C-shaped block 2 10 and pull ring 11 can be reused, reducing the cost of long-term disassembly operations; modular design makes maintenance and replacement of components simpler and faster.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] Those skilled in the art to which the present application belongs may make various modifications or additions to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present application or exceed the scope defined by the attached claims.

Claims

1. A tool for non-destructive disassembly of power battery structural adhesive, characterized in that: include: Gantry and base; Slide blocks are provided at the bottom of both ends of the gantry; slide grooves are provided on both sides of the base; the slide blocks and the slide grooves match each other; The gantry is evenly provided with a plurality of through holes; The gantry is provided with a pull rod lifting assembly, a cylinder lifting assembly and a lead screw lifting assembly.

2. The tooling for non-destructive disassembly of power battery structural adhesive according to claim 1, characterized in that: The pull rod lifting assembly includes a fixed base and a plurality of pull rods of equal length, the number of the pull rods is the same as the number of through holes, the fixed base is fixedly installed at the connection between the front cover and the rear cover of the battery sealing cover by screws, the fixed base is provided with a plurality of threaded holes corresponding to the through holes on the gantry, both ends of the plurality of pull rods are provided with threads of equal length, one end of the pull rod is fixedly connected to the fixed base through the threaded hole, and the other end is connected with a nut through the through hole.

3. The tooling for non-destructive disassembly of power battery structural adhesive according to claim 2, characterized in that: The inner wall diameter of the nut is larger than the diameter of the through hole.

4. The tooling for non-destructive disassembly of power battery structural adhesive according to claim 3, characterized in that: It also includes C-shaped block 1 and C-shaped block 2. When there is no thread between the nut and the pull rod, a gap is generated at the connection between the front cover and the rear cover of the battery sealing cover. Two C-shaped blocks 1 are symmetrically inserted into the gap of the front cover of the battery sealing cover, and two C-shaped blocks 2 with grooves are symmetrically inserted into the gap of the rear cover. Pull rings are installed on both C-shaped block 1 and C-shaped block 2.

5. The tooling for non-destructive disassembly of power battery structural adhesive according to claim 4, characterized in that: The cylinder lifting assembly includes two groups of cylinders; the two groups of cylinders are symmetrically installed at the two ends of the gantry; the lifting rods of the cylinders pass through the through holes at the two ends of the gantry and are detachably connected with flexible chains, and the flexible chains are connected to the pull ring on the C-shaped block.

6. The tooling for non-destructive disassembly of power battery structural adhesive according to claim 5, characterized in that: The lifting rod of the cylinder is provided with a plurality of fixing holes; the flexible chain is connected to the lifting rod of the cylinder through the fixing holes via a pin shaft.

7. The tooling for non-destructive disassembly of power battery structural adhesive according to claim 6, characterized in that: The lead screw lifting assembly includes two lead screws, both of which are D-shaped rods and have threads on the upper part; the two lead screws are symmetrically arranged in the through holes at both ends of the gantry; the upper part of the lead screw passes through the through hole of the gantry and is connected to a second nut, and the lower part is connected to a pull ring 2; between the second nut and the gantry, a D-shaped buckle is connected to the lead screw.

8. The tooling for non-destructive disassembly of power battery structural adhesive according to claim 7, characterized in that: The inner wall diameter of the second nut is larger than the hole diameter of the D-shaped buckle.

9. The method for using the tool for non-destructive disassembly of power battery structural adhesive according to claim 8, characterized in that: The following steps are involved: S1. Place the battery pack on the base with the battery sealing cover facing upwards; S2. Slide the gantry frame onto the base and move the gantry frame to the connection between the front cover and the rear cover of the battery sealing cover; S3, fix the fixing seat at the connection between the front cover and the rear cover of the battery sealing cover by screws, screw multiple tie rods in sequence, and connect the upper part of the tie rods through the through holes of the gantry to the nuts; S4, the nuts on the upper parts of the multiple tie rods are rotated to the unthreaded part of the tie rods, so that each tie rod reaches the limit point. At this time, the connection between the front cover and the rear cover of the battery sealing cover is pulled upward, resulting in a gap. Two C-shaped blocks 1 are symmetrically inserted into the gap of the front cover of the battery sealing cover, and two C-shaped blocks 2 with grooves are symmetrically inserted into the gap of the rear cover; the C-shaped blocks 1 and 2 are both installed with pull rings; S5. Remove multiple tie rods and fixing seats, and install two sets of cylinders symmetrically at both ends of the gantry; S6. Move the gantry to a C-shaped block of the front cover of the battery sealing cover, connect the flexible chain to the C-shaped block, and use the cylinder to pull up to separate the front cover from the box body; S7. Install a new C-shaped block symmetrically at the place where the gap between the front cover and the box body is the smallest, move the gantry to the new C-shaped block, and repeat step S6 until the front cover of the battery sealing cover is removed; S8. Remove the two sets of cylinders, install the D-shaped screws, place the two sets of D-shaped buckles at both ends of the gantry, the bottom of the D-shaped screw passes through the D-shaped buckle and the through hole to connect the second pull ring, and the upper part of the D-shaped screw is installed with a second nut; S9, move the gantry to the second C-shaped block. At this time, it is necessary to install a pressure block on the side of the gantry that is also located on the base, connect the second pull ring and the pull ring on the second C-shaped block, rotate the second nut, and lift the battery sealing cover back cover by lifting the lead screw to separate the battery sealing cover back cover from the box body; S10. At the point where the gap between the rear cover and the box body is the smallest, symmetrically install the new C-shaped block 2, move the gantry to the new C-shaped block 2, and repeat step S9 until the rear cover of the battery sealing cover is removed to complete the non-destructive disassembly.

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