A sorting device and sorting method for retired power batteries

Abstract

The present invention discloses a sorting device and a sorting method for retired power batteries, including a supporting device, inside which a detecting device is movably arranged, and a removing device is movably connected below the supporting device. The detecting device includes a plurality of receiving boxes, and a sealing bottom plate is movably connected to the bottom of each of the plurality of receiving boxes, and a docking panel is fixedly installed on the lower surface of the sealing bottom plate. By placing the power battery inside the receiving box for semi-sealed protection, the present invention can prevent the debris generated by the fragmentation of the power battery and the leaked liquid from coming into contact with the operator, thereby achieving the purpose of protecting the operator, can detect some fine small cracks, and the sealing bottom plate at the bottom can be moved, and cooperating with the removing device, it can directly sort out the power batteries that cannot be subjected to residual energy detection, and also facilitate the operator to process the liquid flowing out of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of retired power battery sorting, and in particular to a sorting device and a sorting method for retired power batteries. Background Art

[0002] Power batteries are the power source for tools, primarily those used in electric vehicles, electric trains, electric bicycles, and golf carts. They differ from the starter batteries used to start automobile engines. Commonly used batteries include valve-sealed lead-acid batteries, open-top tubular lead-acid batteries, and lithium iron phosphate batteries.

[0003] In the prior art, for example, Chinese patent application number CN202110994471.9, titled "A Rapid Sorting Device for Decommissioned Power Batteries," includes a workbench with a volume measurement chamber fixed to its upper end. A receiving box is located within the workbench, located on one side of the volume measurement chamber. The receiving box is provided with a partition that divides the receiving box into multiple receiving chambers. The upper end of the receiving box is open, and a guide rod and a lead screw are provided in parallel within the receiving box. One end of the lead screw is connected to the receiving box via a bearing, while the other end extends out of the receiving box and is fixed to the output shaft of motor 1. The lead screw passes through a fixed support plate and is threadedly connected to the fixed support plate. Slide rails are symmetrically fixed to the inner wall of the receiving box, each of which is equipped with a slider. The guide rods are fixed to the sliders at both ends. A movable support plate is provided on the outer sleeve of the guide rod. A connecting rod is fixed to the end of the fixed support plate near the movable support plate. The movable support plate is provided with a through-hole for the connecting rod to pass through. This rapid sorting device for decommissioned power batteries can automatically sort decommissioned batteries, improving work efficiency.

[0004] However, in the prior art, the main method for judging whether a retired power battery is damaged is the residual energy detection method. The main means of the residual energy detection method is to pass a normal charging current into the power battery and measure its discharge state after the current is passed. Therefore, the entire detection method needs to be based on the premise that the power battery can operate normally before the residual energy test can be performed. At present, whether a power battery can be judged for residual energy testing is mainly judged by the naked eye of the inspector to see whether the power battery has deformation, cracks, leakage, etc., and the overall volume of the power battery is relatively large. It is easy to overlook some corners or small cracks during the naked eye inspection. In addition, if manual inspection is performed to see whether there is leakage, the liquid flowing out of the battery is easy to come into contact with the operator, which poses a certain risk. Summary of the invention

[0005] The object of the present invention is to provide a sorting device and a sorting method for retired power batteries, so as to solve the problem proposed in the above background technology that the retired power batteries are mainly judged whether they are damaged by the residual energy detection method, and the main means of the residual energy detection method is to pass a normal charging current into the power battery and measure its discharge state after the current is passed. Therefore, the whole detection method needs to be carried out on the premise that the power battery can operate normally in order to perform the residual energy test. At present, to judge whether a power battery can perform the residual energy test, it is mainly through the naked eye of the detector to judge whether there are deformations, cracks, liquid leakage, etc. in the power battery. Moreover, the overall volume of the power battery is relatively large, and some corners or small cracks are easily overlooked during the naked eye detection. And if it is manually detected whether there is liquid leakage, the liquid flowing out of the battery is likely to come into contact with the operator, which poses a certain danger.

[0006] To achieve the above object, the present invention provides the following technical solution: A sorting device for retired power batteries, including a support device, inside which a detection device is movably arranged, and a removal device is movably connected below the support device. The support device drives the detection device to move, so that each detection device will come into contact with the removal device once, thereby automatically separating the power batteries that do not meet the residual energy detection standard.

[0007] The detection device includes a plurality of receiving boxes. At the bottom of each of the plurality of receiving boxes, a sealing bottom plate is movably connected. On the lower surface of the sealing bottom plate, a docking panel is fixedly installed. A positioning hole is opened inside the docking panel. On the inner walls of both sides of each of the plurality of receiving boxes, a limiting guide rail is fixedly installed. At the top of the limiting guide rail, a scanner is movably installed. At one end of each of the plurality of receiving boxes, a display panel is fixedly installed. The output end of the scanner is electrically connected to the input end of the display panel. The scanner scans the outer surface of the power battery to detect whether there are deformations and cracks. And the sealing bottom plate is connected to the removal device through the docking panel, and the removal device can open the sealing bottom plate at any time to take out the power battery.

[0008] On the upper surface of each of the plurality of sealing bottom plates, a receiving base is fixedly installed. Inside the receiving base, a liquid detector is movably installed. One end of the receiving base is fixedly connected to a waterproof box. At the other end of the plurality of receiving boxes, an electromagnetic control switch is fixedly installed. The output ends of the liquid detector and the scanner are both electrically connected to the input end of the electromagnetic control switch. The output end of the electromagnetic control switch is electrically connected to the input end of the docking panel. The liquid detector and the scanner directly control the state of the electromagnetic control switch. As long as a power battery does not meet one of the requirements of the residual energy detection, it can be immediately removed.

[0009] Preferably, the support device includes a positioning frame. Four support columns and two connecting columns are fixedly arranged at the bottom of the positioning frame. The lengths of the two connecting columns are shorter than those of the support columns. A docking rod is fixedly connected to the bottom of each of the two connecting columns. The connecting columns are connected to the removal device through the docking rods, so that the removal device can be directly deployed directly below the detection device, accelerating the speed of removing the power battery.

[0010] Preferably, a central rotating rod is fixedly installed at the center of the positioning frame. A docking outer tube is fixedly connected to the outer wall of the central rotating rod. The bottom of the central rotating rod is movably connected to a driving motor. The driving motor drives the central rotating rod to rotate, facilitating the detection personnel to place the power battery into an idle detection device.

[0011] Preferably, one end of the receiving box body is fixedly connected to the outer wall of the docking outer tube, and the other end of the receiving box body is slidably connected to the inner wall of the positioning frame. The central rotating rod drives the receiving box body to rotate through the docking outer tube, so that each detection device makes contact with the removal device once, preventing missed detection.

[0012] Preferably, the removal device includes a bearing platform. A positioning table is fixedly installed on the upper surface of the bearing platform. A partition panel is fixedly installed at one end of the bearing platform. The presence of the partition panel can prevent the power battery from being pushed out of the positioning table.

[0013] Preferably, a lifting bracket is movably installed at one end of the positioning table. A magnet plate is fixedly installed at the top of the lifting bracket. Electric sliders are movably connected to both sides of the positioning table. An active push plate is movably installed at the tops of the two electric sliders. The lifting bracket directly removes the sealing bottom plate through the magnet plate, and then the electric sliders drive the active push plate to push the power battery on the sealing bottom plate to the other end of the positioning table, achieving the purpose of automatically removing the faulty power battery.

[0014] Preferably, the upper surface of the bearing platform is fixedly connected to the other end of the docking rod. The magnet plate is magnetically connected to the bottom of the docking panel. The magnetic connection method can avoid affecting the semi-sealing performance of the receiving box body.

[0015] Preferably, an accommodating groove is provided inside the receiving base, and a telescopic bracket is fixedly installed at the bottom of the accommodating groove, and the top of the telescopic bracket is fixedly connected to the supporting platform, and an extension block is fixedly installed on the lower surface of the supporting platform, and one side of the extension block is rotatably connected to the inclined support rod, and the other end of the inclined support rod is rotatably connected to a slider, and both ends of the slider are rotatably connected to the lifting support rod, and one end of the lifting support rod is slidably connected to the inner wall of the accommodating groove, and the top of the lifting support rod is fixedly connected to the side limit plates, which are located on both sides of the receiving base, and the weight of the power battery itself is used to press down the inclined support rod, so as to extend the side limit plates from both sides of the support platform 213 and fix the power battery, thereby ensuring the stability of the power battery.

[0016] A sorting device and a sorting method for retired power batteries, the sorting method comprising the following steps:

[0017] S1. Information collection: Observe the label on the power battery to collect basic information about the power battery, such as nominal voltage, nominal capacity, or nominal energy, and weigh the power battery and record its mass;

[0018] S2. Appearance inspection: Place the power battery into the receiving box. The limit rails on both sides of the receiving box drive the scanner to move up and down. Use the scanner to scan its appearance. If there is any deformation, cracks, damage, etc., it should not be subjected to residual energy inspection;

[0019] S3. Status detection: When the power battery is inside the receiving box, it is in direct contact with the receiving base. At this time, the liquid detector in the receiving base is directly attached to the surface of the bottom of the power battery to detect whether there is liquid on the surface of the power battery and determine whether the liquid is leaking. If the power battery is leaking, the residual energy test should not be performed;

[0020] S4. The central rotating rod will drive all the receiving boxes to move at the same time. When it is detected that the power battery cannot be tested for residual energy, the lifting bracket pushes the magnet plate to connect to the docking panel. The electromagnetic control switch is energized to make the docking panel generate magnetic force and connect with the magnet plate. Then the lifting bracket descends to the positioning platform. The electric slider moves the power battery out through the movable push plate, and then the lifting bracket pushes the sealing bottom plate back to the bottom of the receiving box.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the power battery is placed inside the receiving box for semi-sealed protection to prevent the debris generated by the fragmentation of the power battery and the leaked liquid from coming into contact with the operator, thus achieving the purpose of protecting the operator. At the same time, the scanner can move up and down along the limit guide rail to conduct a more comprehensive inspection of the power battery, detect some fine cracks, and the bottom sealing plate can be moved. Cooperating with the removal device, the power batteries that cannot be subjected to residual energy detection can be directly sorted out, and it is also convenient for the operator to handle the liquid flowing out of the battery.

[0023] 2. In the present invention, the removal device attaches the magnet plate to the bottom of the docking panel through the lifting frame, and the docking panel is controlled by an electromagnetic control switch. When the power battery meets the standard for residual energy detection, the magnet plate cannot attract the docking panel. When the power battery does not meet the standard for residual energy detection, the electromagnetic control switch is energized to make the docking panel generate magnetism. At this time, the magnet plate can attract the docking panel, thereby achieving the purpose of taking it away from the receiving box and realizing the effect of automatic sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of a sorting device for retired power batteries of the present invention;

[0025] Figure 2 is a schematic structural diagram of the support device of a sorting device for retired power batteries of the present invention;

[0026] Figure 3 is a schematic structural diagram of the bottom of the support device of a sorting device for retired power batteries of the present invention;

[0027] Figure 4 is a schematic connection structure diagram of the support device and the detection device of a sorting device for retired power batteries of the present invention;

[0028] Figure 5 is a schematic structural diagram of the detection device of a sorting device for retired power batteries of the present invention;

[0029] Figure 6 is a top view of the detection device of a sorting device for retired power batteries of the present invention;

[0030] Figure 7 is a schematic structural diagram of the removal device of a sorting device for retired power batteries of the present invention;

[0031] Figure 8 is a cross-sectional view of the internal structure of the receiving base of a sorting device for retired power batteries of the present invention.

[0032] In the figure:

[0033] 1. Support device; 2. Detection device; 3. Removal device;

[0034] 11. Positioning frame; 12. Support column; 13. Connecting pillar; 14. Docking rod; 15. Central rotating rod; 16. Docking outer tube; 17. Driving motor;

[0035] 21. Receiving box; 22. Sealing bottom plate; 23. Docking panel; 24. Positioning hole; 25. Limit guide rail; 26. Scanner; 27. Display panel; 28. Electromagnetic control switch; 29. Receiving base; 210. Liquid detector; 211. Waterproof box;

[0036] 31. Carrying platform; 32. Positioning table; 33. Partition panel; 34. Lifting bracket; 35. Magnet plate; 36. Electric slider; 37. Movable push plate. Detailed implementation manner

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038]

[0039] Refer to Figure 4 、 Figure 5 、 Figure 6 ​As shown: A sorting device for retired power batteries, including a support device 1, inside which a detection device 2 is movably arranged. Below the support device 1 is movably connected a removal device 3. The detection device 2 includes a plurality of receiving boxes 21. At the bottom of each of the plurality of receiving boxes 21 is movably connected a sealing bottom plate 22. Fixedly installed on the lower surface of the sealing bottom plate 22 is a docking panel 23. Inside the docking panel 23 are provided positioning holes 24. Fixedly installed on the inner walls on both sides of each of the plurality of receiving boxes 21 are limiting guide rails 25. At the top of the limiting guide rails 25 is movably installed a scanner 26. Fixedly installed at one end of each of the plurality of receiving boxes 21 is a display panel 27. Electrically connected between the output end of the scanner 26 and the input end of the display panel 27. Fixedly installed on the upper surface of each of the plurality of sealing bottom plates 22 is a receiving base 29. Inside the receiving base 29 is movably installed a liquid detector 210. Fixedly connected to one end of the receiving base 29 is a waterproof box 211. Fixedly installed at the other end of the plurality of receiving boxes 21 is an electromagnetic control switch 28. Electrically connected between the output ends of the liquid detector 210 and the scanner 26 and the input end of the electromagnetic control switch 28. Electrically connected between the output end of the electromagnetic control switch 28 and the input end of the docking panel 23. Inside the receiving base 29 is provided a receiving groove 212. Fixedly installed at the bottom of the receiving groove 212 is a telescopic bracket 214. Fixedly connected to the top of the telescopic bracket 214 is a support platform 213. Fixedly installed on the lower surface of the support platform 213 is an extension block 215. Rotatably connected to one side of the extension block 215 is an inclined support rod 216. Rotatably connected to the other end of the inclined support rod 216 is a slider 217. Rotatably connected to both ends of the slider 217 are upward-lifting support rods 218. One end of the upward-lifting support rod 218 is slidably connected to the inner wall of the receiving groove 212. Fixedly connected to the top of the upward-lifting support rod 218 is a side limiting plate 219. The side limiting plate 219 is located on both sides of the receiving base 29.

[0040] In this embodiment, the support device 1 drives the detection device 2 to move, so that each detection device 2 will come into contact with the removal device 3 once, thereby automatically separating the power batteries that do not meet the residual energy detection standard. The sealing bottom plate 22 is adsorbed on the bottom of the receiving box 21 under the connection of the electromagnetic control switch 28 to ensure that the receiving box 21 can normally accommodate the power batteries. When in use, the tester puts the power battery into the inside of the receiving box 21, and the power battery will be on the upper surface of the support platform 213, and use its own weight to press down the telescopic support 214. At this time, the support platform 213 will also move synchronously into the accommodation groove 212. During the movement of the support platform 213, the extension block 214 will press down one end of the inclined support rod 216. Since the position of the extension block 214 is fixed, the inclined support rod 216 will push the slider 217 at the other end to move on the inner wall of the accommodation groove 212, thereby pushing the lifting support rod 218 to move upward along the side wall of the accommodation groove 212, so as to move the side limit plates 219 out of both sides of the support platform 213 to complete the fixation of the power battery, so as to ensure the stability of the power battery in the detection device 2. After determining the position of the power battery, at this time the power battery will directly contact the receiving base 29. According to the fluidity of the liquid, if the battery leaks, the leaked liquid will concentrate at the bottom of the power battery. Therefore, the liquid detector 210 can directly detect whether there is liquid on the surface of the power battery and judge whether the liquid belongs to the battery leakage situation. If the power battery leaks, it should not be subjected to residual energy detection. The waterproof box 211 mainly serves to protect the circuit and prevent it from contacting the battery leakage. At the same time, the scanner 26 will move up and down under the drive of the limit guide rail 25 to complete the three-dimensional scanning of the power battery and obtain the complete surface information of the power battery, so as to detect whether the power battery has deformations, cracks, etc. If all meet the residual energy detection standard, the electromagnetic control switch 28 will not be triggered. If any one does not meet the residual energy detection standard, the scanner 26 and the liquid detector 210 will directly trigger the electromagnetic control switch 28. The electromagnetic control switch 28 disconnects the power of the sealing bottom plate 22 and transfers the power to the docking panel 23, so that the removal device 3 can remove the sealing bottom plate 22 from the bottom of the receiving box 21 through the docking panel 23 to achieve the purpose of removing the faulty battery. The positioning hole 24 is used to improve the accuracy of the docking and removal device 3.

[0041] Embodiment 2

[0042] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown in the figure: The support device 1 includes a positioning frame 11. Four support columns 12 and two connecting columns 13 are fixedly arranged at the bottom of the positioning frame 11. The lengths of the two connecting columns 13 are shorter than those of the support columns 12. A docking rod 14 is fixedly connected to the bottom of each of the two connecting columns 13. A central rotating rod 15 is fixedly installed at the center of the positioning frame 11. A docking outer tube 16 is fixedly connected to the outer wall of the central rotating rod 15. A driving motor 17 is movably connected to the bottom of the central rotating rod 15. One end of the receiving box 21 is fixedly connected to the outer wall of the docking outer tube 16, and the other end of the receiving box 21 is slidably connected to the inner wall of the positioning frame 11.

[0043] In this embodiment, the four support columns 12 and the two connecting columns 13 together support the entire positioning frame 11. The two shorter connecting columns 13 are connected to the removal device 3 through the docking rods 14, thereby providing a receiving space for the removal device 3, enabling the removal device 3 to be directly deployed directly below the detection device 2, and accelerating the speed of removing the power battery. The positioning frame 11 directly determines the positions of the respective receiving boxes 21. One end of the receiving box 21 is slidably connected to the inner wall of the positioning frame 11, and the other end is connected to the docking outer tube 16. When the device operates, the driving motor 17 drives the central rotating rod 15 to rotate, and the central rotating rod 15 drives all the receiving boxes 21 to move through the docking outer tube 16, so that each receiving box 21 will come into contact with the removal device 3 at the bottom once to prevent missed detection.

[0044] Embodiment 3

[0045] Refer to Figure 1 、 Figure 2 、 Figure 7 As shown in the figure: The removal device 3 includes a bearing platform 31. A positioning table 32 is fixedly installed on the upper surface of the bearing platform 31. A partition panel 33 is fixedly installed at one end of the bearing platform 31. A lifting bracket 34 is movably installed at one end of the positioning table 32. A magnet plate 35 is fixedly installed at the top of the lifting bracket 34. Electric sliders 36 are movably connected to both sides of the positioning table 32. A movable push plate 37 is movably installed at the tops of the two electric sliders 36. The upper surface of the bearing platform 31 is fixedly connected to the other end of the docking rod 14. The magnet plate 35 is magnetically connected to the bottom of the docking panel 23.

[0046] In this embodiment, the bearing platform 31 is directly connected to the docking rod 14 to ensure that the entire removal device 3 is directly below the detection device 2. When the device operates, the lifting bracket 34 is maintained at a certain height. When a detection device 2 moves above the magnet plate 35, the lifting bracket 34 pushes the magnet plate 35 against the docking panel 23. At this time, if the power battery meets the residual energy detection standard, the sealed bottom plate 22 cannot be removed from the receiving box 21, and the lifting bracket 34 descends to wait for the next detection device 2. If the power battery does not meet the residual energy detection standard, the magnet plate 35 can attract the docking panel 23 to lift the sealed bottom plate 22 from the receiving box 21 and lower it to the positioning table 32. At this time, the electric slider 36 starts to move, and the removed power battery is pushed to the other end of the positioning table 32 for removal by the movable push plate 37. The presence of the partition panel 33 can prevent the power battery from being pushed out of the positioning table 32. After the power battery is removed, the electric slider 36 resets, and the lifting bracket 34 pushes the sealed bottom plate 22 back under the receiving box 21. The electromagnetic control switch 28 disconnects the current of the docking panel 23 and supplies power to the sealed bottom plate 22 again to make it adsorb to the receiving box 21 again.

[0047] Usage method and working principle of this device: In the normal state, the sealed bottom plate 22 is adsorbed on the bottom of the receiving box 21 under the connection of the electromagnetic control switch 28 to ensure that the receiving box 21 can normally accommodate the power battery. During use, the tester places the power battery into the interior of the receiving box 21. At this time, the power battery will directly contact the receiving base 29. According to the fluidity of the liquid, if the battery leaks, the leaked liquid will accumulate at the bottom of the power battery. Therefore, the liquid detector 210 can directly detect whether there is liquid on the surface of the power battery and determine whether the liquid is a battery leak. If the power battery leaks, its residual energy should not be detected.

[0048] Meanwhile, the scanner 26 will move up and down driven by the limit guide rail 25 to complete a three-dimensional scan of the power battery and obtain the complete surface information of the power battery, so as to detect whether there are deformations, cracks, etc. on the power battery. If all meet the residual energy detection standard, the electromagnetic control switch 28 will not be triggered. If any one does not meet the residual energy detection standard, the scanner 26 and the liquid detector 210 will directly trigger the electromagnetic control switch 28, and the electromagnetic control switch 28 disconnects the power of the sealed bottom plate 22 and transfers the power to the docking panel 23.

[0049] During the entire inspection process, the drive motor 17 rotates the central rotating rod 15, which in turn moves all receiving boxes 21 via the docking outer tube 16, ensuring that each receiving box 21 makes contact with the removal device 3 at its base. While the removal device 3 is operating, the lifting bracket 34 remains at a constant height. When a detection device 2 moves above the magnet plate 35, the lifting bracket 34 pushes the magnet plate 35 into contact with the docking panel 23.

[0050] If the power battery meets the residual energy test criteria, the sealed bottom plate 22 cannot be removed from the receiving box 21, and the lifting bracket 34 descends to await the next testing device 2. If the power battery does not meet the residual energy test criteria, the magnet plate 35 attracts the docking panel 23, lifting the sealed bottom plate 22 from the receiving box 21 and lowering it onto the positioning platform 32. The motorized slider 36 then begins to move, using the movable push plate 37 to push the removed power battery to the other end of the positioning platform 32 for removal. The presence of the partition panel 33 prevents the power battery from being pushed out of the positioning platform 32. After the power battery is removed, the motorized slider 36 returns to its original position, and the lifting bracket 34 pushes the sealed bottom plate 22 back under the receiving box 21. The electromagnetic control switch 28 disconnects the current from the docking panel 23, reenergizing the sealed bottom plate 22 and allowing it to reattach to the receiving box 21.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sorting device for retired power batteries, characterized in that: It includes a support device (1), inside which a detection device (2) is movably arranged, and a removal device (3) is movably connected below the support device (1); The support device (1) includes a positioning frame (11), at the bottom of which four support columns (12) and two connecting columns (13) are fixedly arranged. The length of the connecting column (13) is shorter than that of the support column (12). A docking rod (14) is fixedly connected to the bottom of the connecting column (13). A central rotating rod (15) is fixedly installed at the center of the positioning frame (11). A docking outer tube (16) is fixedly connected to the outer wall of the central rotating rod (15). A driving motor (17) is movably connected to the bottom of the central rotating rod (15); The detection device (2) includes a plurality of receiving boxes (21), at the bottom of which a sealing bottom plate (22) is movably connected. A docking panel (23) is fixedly installed on the lower surface of the sealing bottom plate (22). A positioning hole (24) is opened inside the docking panel (23). Limiting guide rails (25) are fixedly installed on both inner walls of the receiving box (21). A scanner (26) is movably installed on the top of the limiting guide rail (25). A display panel (27) is fixedly installed at one end of the receiving box (21). An electrical connection is established between the output end of the scanner (26) and the input end of the display panel (27); A receiving base (29) is fixedly installed on the upper surface of the sealing bottom plate (22). A liquid detector (210) is movably installed inside the receiving base (29). A waterproof box (211) is fixedly connected to one end of the receiving base (29). An electromagnetic control switch (28) is fixedly installed at the other end of the receiving box (21). Electrical connections are established between the output ends of the liquid detector (210) and the scanner (26) and the input end of the electromagnetic control switch (28). An electrical connection is established between the output end of the electromagnetic control switch (28) and the input end of the docking panel (23). A receiving groove (212) is opened inside the receiving base (29). A telescopic bracket (214) is fixedly installed at the bottom of the receiving groove (212). A support platform (213) is fixedly connected to the top of the telescopic bracket (214). An extension block (215) is fixedly installed on the lower surface of the support platform (213). An inclined support rod (216) is rotatably connected to one side of the extension block (215). The other end of the inclined support rod (216) is rotatably connected to a slider (217). Upper lifting support rods (218) are rotatably connected to both ends of the slider (217). One end of the upper lifting support rod (218) is slidably connected to the inner wall of the receiving groove (212). The top of the upper lifting support rod (218) is fixedly connected to a side limiting plate (219), and the side limiting plate (219) is located on both sides of the receiving base (29).

2. The sorting device for retired power batteries according to claim 1, characterized in that: One end of the receiving box body (21) is fixedly connected to the outer wall of the docking outer pipe (16), and the other end of the receiving box body (21) is slidably connected to the inner wall of the positioning frame (11).

3. The sorting device for retired power batteries according to claim 1, characterized in that: The removing device (3) includes a carrying platform (31), a positioning table (32) is fixedly installed on the upper surface of the carrying platform (31), and a partition panel (33) is fixedly installed at one end of the carrying platform (31).

4. The sorting device for retired power batteries according to claim 3, wherein: A lifting bracket (34) is movably installed at one end of the positioning table (32), a magnet plate (35) is fixedly installed at the top of the lifting bracket (34), and electric sliders (36) are movably connected to both sides of the positioning table (32), and a movable push plate (37) is movably installed at the tops of the two electric sliders (36).

5. The sorting device for retired power batteries according to claim 4, wherein: The upper surface of the carrying platform (31) is fixedly connected to the other end of the docking rod (14), and the magnet plate (35) is magnetically connected to the bottom of the docking panel (23).

6. A sorting method for retired power batteries, using the retired power battery sorting device described in any one of the above claims 1-5, characterized in that, The sorting method includes the following steps: S1. Information collection: Observe the label on the appearance of the power battery, collect the nominal voltage, nominal capacity or nominal energy of the power battery, and weigh the mass of the power storage battery for recording; S2. Appearance detection: Place the power battery into the receiving box body (21). The limit guide rails (25) on both sides of the receiving box body (21) drive the scanner (26) to move up and down, and use the scanner (26) to scan its appearance. If there are deformations, cracks, or damages, the remaining energy detection should not be carried out on it; S3. Status detection: When the power battery is inside the receiving box body (21), it will be in direct contact with the receiving base (29). At this time, the liquid detector (210) in the receiving base (29) is directly attached to the surface of the bottom of the power battery to detect whether there is liquid on the surface of the power battery and judge whether the liquid belongs to the case of battery leakage. If the power battery has a leakage situation, the remaining energy detection should not be carried out on it; S4. The central rotating rod (15) will drive all the receiving box bodies (21) to move at the same time. When it is monitored that the power battery cannot be subjected to the remaining energy detection, the lifting bracket (34) pushes the magnet plate (35) to connect to the docking panel (23). The electromagnetic control switch (28) is energized to make the docking panel (23) generate magnetism and thus connect to the magnet plate (35). Then the lifting bracket (34) descends to the positioning table (32), and the electric slider (36) moves out the power battery through the movable push plate (37). Then the lifting bracket (34) pushes the sealing bottom plate (22) back to the bottom of the receiving box body (21) again.

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