Battery module connecting plate and battery module thereof

Abstract

The invention relates to the technical field of energy storage batteries, and discloses a battery module connecting plate and a battery module thereof.The battery module connecting plate comprises a base, a plurality of screw holes are formed in the base, a plurality of limiting plates are fixedly connected to the upper surface of the base, and battery bodies are slidably connected to the interiors of the limiting plates; the upper surface of the base is fixedly connected with a supporting plate, the outer wall of the supporting plate is fixedly connected with a jacket, the upper surface of the base is fixedly connected with a water tank, the interior of the water tank is fixedly connected with a refrigeration surface of a semiconductor refrigeration sheet, and the heating surface of the semiconductor refrigeration sheet is fixedly connected with a plurality of cooling fins; a condenser is fixedly connected to the outer walls of the cooling fins, a first water pump is fixedly connected to the outer wall of the water tank, and a first water pumping pipe is fixedly connected to the input end of the first water pump. And through cooperation between the cooling part and the filtering part, the cooling effect of cooling water is improved, meanwhile, the cooling water is filtered, and the cooling effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage batteries, and in particular to a battery module connecting plate and a battery module thereof. Background Art

[0002] The battery module connecting plate is a circuit board or metal plate used to connect multiple battery cells together. Multiple battery cells are connected in series or in parallel through the connecting plate according to the design requirements to form a battery module. The battery module connecting plate and its battery module are key components in the battery assembly system and are widely used in electric vehicles, energy storage systems and other fields. The reliability, safety and performance of the battery system can be improved through the reasonable design and use of battery module connecting plates and battery modules.

[0003] Most existing battery modules are cooled quickly by water-cooling circulation in water pipes. The cooling water will carry some impurities when flowing inside the pipes for a long time, which will cause blockage of the water-cooling pipes, and finally greatly reduce the cooling effect of the battery module. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a battery module connecting plate and a battery module thereof, which solves the problem that cooling water will carry some impurities when flowing inside the pipeline for a long time, causing blockage of the water cooling pipe and finally greatly reducing the cooling effect on the battery module.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a battery module, including a base, a plurality of screw holes are opened inside the base, a plurality of limit plates are fixedly connected to the upper surface of the base, the battery body is slidably connected inside the limit plates, a support plate is fixedly connected to the upper surface of the base, a jacket is fixedly connected to the outer wall of the support plate, a water tank is fixedly connected to the upper surface of the base, a cooling surface of a semiconductor refrigeration plate is fixedly connected to the inside of the water tank, a plurality of heat sinks are fixedly connected to the heating surface of the semiconductor refrigeration plate, a condenser is fixedly connected to the outer wall of the heat sink, a water pump is fixedly connected to the outer wall of the water tank, a pumping pipe is fixedly connected to the input end of the pump, the outer wall of the pumping pipe is fixedly connected to the inside of the water tank, and the water pump is fixedly connected to the inner side of the water tank. The output end of the battery is fixedly connected with a delivery pipe 1, the outer wall of the delivery pipe 1 is fixedly connected with a condenser pipe 1, the outer wall of the condenser pipe 1 is fixedly connected with a condenser pipe 2, the outer walls of the condenser pipe 1 and the condenser pipe 2 are both sleeved on the outer wall of the battery body, the outer wall of the jacket is fixedly connected with a water pump 2, the input end of the water pump 2 is fixedly connected with a pumping pipe 2, the outer wall of the pumping pipe 2 is fixedly connected to the inside of the condenser pipe 1, the output end of the water pump 2 is fixedly connected with a delivery pipe 2, the outer wall of the delivery pipe 2 is fixedly connected to a filter box, the lower end of the inside of the filter box is fixedly connected with a return pipe, the outer wall of the return pipe is fixedly connected to the inside of the water tank, the inside of the filter box is slidably connected with an activated carbon plate, the water pump of the activated carbon plate is fixedly connected with a sealing plate, and a cleaning component is provided inside the filter box.

[0006] Preferably, the cleaning assembly includes a cylinder, the outer wall of the cylinder is fixedly connected to the top of the filter box, the driving end of the cylinder is fixedly connected to a brush 1, and the outer wall of the brush 1 is in contact with the outer wall of the activated carbon plate.

[0007] Preferably, the upper surface of the base is fixedly connected to a fixing plate, the outer wall of the fixing plate is slidably connected to a mounting plate, the lower surface of the mounting plate is fixedly connected to a heating box, the interior of the heating box is fixedly connected to a heating plate, the interior of the mounting plate is threadedly connected to bolts, and the outer wall of the bolts is threadedly connected to the interior of the fixing plate.

[0008] Preferably, a plurality of fans are fixedly connected to the interior of the heating box, and the outer walls of the fans pass through the interior of the fixing plate.

[0009] Preferably, a dustproof net is fixedly connected to the interior of the heating box, a bracket is fixedly connected to the upper surface of the heating box, an electric push rod is fixedly connected to the interior of the bracket, a brush 2 is fixedly connected to the driving end of the electric push rod, and the outer wall of the brush 2 is in contact with the outer wall of the dustproof net.

[0010] Preferably, the outer wall of the fixing plate is fixedly connected to the rubber plate 1, the outer wall of the fixing plate is fixedly connected to the rubber plate 2, and the outer wall of the rubber plate 2 is arranged on the outer wall of the rubber plate 1.

[0011] Preferably, the outer wall of the rubber sheet one is fixedly connected to a plurality of telescopic rods, the ends of the telescopic rods are fixedly connected to rubber blocks, the outer wall of the rubber block is slidably connected to the inner wall of the rubber sheet two, the outer wall of the telescopic rod is sleeved with a spring, one end of the spring is fixedly connected to the outer wall of the rubber sheet one, and the other end of the spring is fixedly connected to the outer wall of the rubber block.

[0012] Preferably, a left-right symmetrical terminal 1 is fixedly connected to the top of the battery body, and a connecting plate is slidably connected to the outer wall of the terminal 1.

[0013] Preferably, the upper surface of the connecting plate is fixedly connected with the second terminal, and the outer wall of the second terminal is slidably connected with the wiring head.

[0014] Preferably, a battery module connecting plate comprises a limit block, the outer wall of the limit block is slidably connected to the upper end of the outer wall of the battery body, the interior of the limit block is fixedly connected to a diverter, the outer wall of the diverter is fixedly connected to an air pump, the input end of the air pump is fixedly connected to an air duct, the outer wall of the air duct is fixedly connected to the interior of the diverter, and the output end of the diverter is fixedly connected to a plurality of vacuum suction cups.

[0015] Working principle: When the device needs to be used, first place the battery body inside the limit plate on the upper surface of the base, and the condenser tube 1 and the condenser tube 2 are sleeved on the outer walls of multiple batteries. Then connect the connecting plate to the end 1 of the motor, and connect the terminal head to the end 2 of the connecting plate at the same time, so as to facilitate the use of the battery pack. Then, insert the limit block into the outer wall of the battery body, and then start the air pump to extract the air inside the diverter through the air duct, so that the diverter generates suction, and the vacuum suction cup is adsorbed on the outer wall of the battery body. Then, when the battery collides during use, first squeeze the rubber block and the rubber plate 2, and then absorb the impact force generated by the shaking of the battery body through the rubber block squeezing the telescopic rod and the spring, so as to protect the battery body. When the temperature inside the battery is low, start the heating plate inside the heating box to heat the air inside the heating box, and then drive the fan to discharge the hot air inside the heating box to heat the battery pack to prevent the normal use of the battery from being affected by the low temperature. The electric push rod connected to the start bracket is used to carry the brush 2 on the outer wall of the dustproof net. Slide to clean the dustproof net. When the battery pack needs to be cooled, first start the semiconductor refrigeration sheet to cool the cooling water inside the water tank. The heat sink and condenser connected to the heating surface of the semiconductor refrigeration sheet make it work normally. Then start the water pump one to extract the cooling water through the pumping pipe one and discharge it to the inside of the condenser tube one and the condenser tube two through the delivery pipe one. The cooling water flows inside the condenser tube one and the condenser tube two, carrying the heat generated by the battery, so that the battery can operate normally. Then, when the cooling water needs to be filtered, start the water pump two to extract the cooling water inside the condenser tube one through the pumping pipe two, and deliver it to the inside of the filter box through the delivery pipe two. The cooling water adsorbs impurities on the activated carbon plate inside the filter box. Start the air pump to push the brush one to slide on the outer wall of the activated carbon plate. The outer wall of the activated carbon plate is cleaned without affecting the normal operation of the activated carbon plate. The activated carbon plate can also be moved out of the filter box by pulling the sealing plate, and the activated carbon plate can be replaced. Finally, the treated cooling water returns to the inside of the water tank through the reflux pipe for cooling, so as to realize water recycling.

[0016] The present invention provides a battery module connecting plate and a battery module thereof. The present invention has the following beneficial effects:

[0017] 1. The present invention achieves the goal of improving the cooling effect of cooling water while filtering the cooling water through the cooperation between the cooling component and the filtering component, thereby further improving the cooling effect. This solves the problem that most existing battery modules use water pipe water cooling circulation to quickly cool down the battery module. The cooling water will carry some impurities when flowing inside the pipe for a long time, which will cause the water cooling pipe to be blocked, and finally greatly reduce the cooling effect of the battery module.

[0018] 2. The present invention ensures the stability of the battery cell by the cooperation of the buffer component and prevents the battery cell from being damaged by vibration or impact. At the same time, the battery module is heated at low temperatures by the cooperation of the heating component to protect the battery module and avoid safety hazards. This solves the problem that the battery diaphragm may be punctured in a low temperature environment, causing damage to the battery module and even safety hazards.

[0019] 3. The present invention utilizes the coordination between the limiting components. When assembling the battery module, it is only necessary to simply cover the battery module connection plate on the pre-assembled battery group and fix it with the connecting parts. When disassembling, the battery module can be disassembled by directly removing the connecting parts, thus avoiding the conventional electrical connection using non-detachable laser welding. At the same time, since laser welding is not used, there is no need to build a laser welding production line, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the water tank part of the present invention;

[0022] Figure 3 It is a partial structural schematic diagram of the filter box of the present invention;

[0023] Figure 4 It is a schematic diagram of the heating plate structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the heating box of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the fixing plate part of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the telescopic rod part of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the battery body of the present invention;

[0028] Fig. 9 It is a partial structural schematic diagram of the air pump of the present invention;

[0029] Fig.10 It is a partial structural schematic diagram of the limiting plate of the present invention.

[0030] Among them, 1. base; 2. screw hole; 3. battery body; 4. limit plate; 5. jacket; 6. water tank; 7. water pump 1; 8. water pump 1; 9. delivery pipe 1; 10. condenser 1; 11. condenser 2; 12. support plate; 13. water pump 2; 14. water pump 2; 15. delivery pipe 2; 16. filter box; 17. reflux pipe; 18. cylinder; 19. brush 1; 20. activated carbon plate; 21. sealing plate; 22. semiconductor cooling plate; 23. heat sink; 24. condenser; 25. Fixing plate; 26. Heating box; 27. Dust screen; 28. Heating plate; 29. ​​Mounting plate; 30. Bolts; 31. Fan; 32. Bracket; 33. Electric push rod; 34. Brush 2; 35. Rubber sheet 1; 36. Rubber sheet 2; 37. Telescopic rod; 38. Spring; 39. Rubber block; 40. Terminal 1; 41. Connecting plate; 42. Terminal 2; 43. Terminal end; 44. Limiting block; 45. Diverter; 46. Air pump; 47. Air duct; 48. Vacuum suction cup. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example:

[0033] Please see attached Figure 1 -Attached Figure 3The embodiment of the present invention provides a battery module, including a base 1, a plurality of screw holes 2 are opened inside the base 1, a plurality of limit plates 4 are fixedly connected to the upper surface of the base 1, a battery body 3 is slidably connected to the inner part of the limit plates 4, a support plate 12 is fixedly connected to the upper surface of the base 1, a jacket 5 is fixedly connected to the outer wall of the support plate 12, a water tank 6 is fixedly connected to the upper surface of the base 1, a cooling surface of a semiconductor refrigeration plate 22 is fixedly connected to the inner part of the water tank 6, a plurality of heat sinks 23 are fixedly connected to the heating surface of the semiconductor refrigeration plate 22, a condenser 24 is fixedly connected to the outer wall of the heat sink 23, a water pump 7 is fixedly connected to the outer wall of the water tank 6, a pumping pipe 8 is fixedly connected to the input end of the water pump 7, the outer wall of the pumping pipe 8 is fixedly connected to the inner part of the water tank 6, a delivery pipe 9 is fixedly connected to the outer wall of the delivery pipe 9, a condensing pipe 10 is fixedly connected to the outer wall of the condensing pipe 10 11, the outer walls of condenser tube 10 and condenser tube 2 11 are both sleeved on the outer wall of the battery body 3, the outer wall of the jacket 5 is fixedly connected to a water pump 2 13, the input end of the water pump 2 13 is fixedly connected to a water pump 2 14, the outer wall of the water pump 2 14 is fixedly connected to the inside of the condenser tube 10, the output end of the water pump 2 13 is fixedly connected to a delivery pipe 2 15, the outer wall of the delivery pipe 2 15 is fixedly connected to a filter box 16, the lower end of the inside of the filter box 16 is fixedly connected to a return pipe 17, the outer wall of the return pipe 17 is fixedly connected to the inside of the water tank 6, the inside of the filter box 16 is slidably connected to an activated carbon plate 20, the water pump of the activated carbon plate 20 is fixedly connected to a sealing plate 21, the inside of the filter box 16 is provided with a cleaning assembly, the cleaning assembly includes a cylinder 18, the outer wall of the cylinder 18 is fixedly connected to the top of the filter box 16, the driving end of the cylinder 18 is fixedly connected to a brush 19, the outer wall of the brush 19 is in contact with the outer wall of the activated carbon plate 20.

[0034] Specifically, through the semiconductor refrigeration plate 22 and the cooling water circulation system, precise temperature control of the battery pack can be achieved to avoid excessive cooling or energy waste, thereby saving energy costs. Through effective cooling, the damage that may be caused to the battery pack due to overheating can be reduced, the service life of the battery can be extended, and the pollution of the environment by discarded batteries can be reduced. Through the filtering and cleaning function of the activated carbon plate 20, impurities in the cooling water can be effectively removed, the cooling water can be kept clean, system blockages and failures can be reduced, and the life of the equipment can be extended. The cooling water is purified by the activated carbon plate 20 in the filter box 16 to effectively remove impurities and pollutants, ensuring that the cooling water quality meets the requirements.

[0035] Please see attached Figure 4 -Attached Figure 8A fixing plate 25 is fixedly connected to the upper surface of the base 1, and a mounting plate 29 is slidably connected to the outer wall of the fixing plate 25. A heating box 26 is fixedly connected to the lower surface of the mounting plate 29. A heating plate 28 is fixedly connected to the interior of the heating box 26. Bolts 30 are threadedly connected to the interior of the mounting plate 29. The outer wall of the bolt 30 is threadedly connected to the interior of the fixing plate 25. A plurality of fans 31 are fixedly connected to the interior of the heating box 26. The outer wall of the fan 31 passes through the interior of the fixing plate 25. A dustproof net 27 is fixedly connected to the interior of the heating box 26. A bracket 32 ​​is fixedly connected to the upper surface of the heating box 26. An electric push rod 33 is fixedly connected to the interior of the bracket 32. A brush 2 34 is fixedly connected to the driving end of the electric push rod 33. The outer wall of the brush 2 34 fits the outer wall of the dustproof net 27. The outer wall of the fixing plate 25 The outer wall of the fixed plate 25 is fixedly connected with a rubber plate 1 35, the outer wall of the rubber plate 2 36 is fixedly connected with the outer wall of the rubber plate 1 35, the outer wall of the rubber plate 2 36 is arranged on the outer wall of the rubber plate 1 35, a plurality of telescopic rods 37 are fixedly connected with the outer wall of the rubber plate 1 35, the end of the telescopic rod 37 is fixedly connected with a rubber block 39, the outer wall of the rubber block 39 is slidably connected to the inner wall of the rubber plate 2 36, the outer wall of the telescopic rod 37 is sleeved with a spring 38, one end of the spring 38 is fixedly connected to the outer wall of the rubber plate 1 35, and the other end of the spring 38 is fixedly connected to the outer wall of the rubber block 39, the top of the battery body 3 is fixedly connected with a left-right symmetrical terminal 1 40, the outer wall of the terminal 1 40 is slidably connected with a connecting plate 41, the upper surface of the connecting plate 41 is fixedly connected with a terminal 2 42, and the outer wall of the terminal 2 42 is slidably connected with a terminal head 43.

[0036] Specifically, through the semiconductor refrigeration plate 22 and the cooling water circulation system, precise temperature control of the battery pack can be achieved to avoid excessive cooling or energy waste, thereby saving energy costs. Through effective cooling, the damage that may be caused to the battery pack due to overheating can be reduced, the service life of the battery can be extended, and the pollution of the environment by discarded batteries can be reduced. Through the filtering and cleaning function of the activated carbon plate 20, impurities in the cooling water can be effectively removed, the cooling water can be kept clean, system blockages and failures can be reduced, and the life of the equipment can be extended. The cooling water is purified by the activated carbon plate 20 in the filter box 16 to effectively remove impurities and pollutants, ensuring that the cooling water quality meets the requirements.

[0037] Please see attached Fig. 9 -Attached Fig.10 A battery module connecting plate includes a limit block 44, the outer wall of the limit block 44 is slidably connected to the upper end of the outer wall of the battery body 3, a diverter 45 is fixedly connected to the inside of the limit block 44, the outer wall of the diverter 45 is fixedly connected to an air pump 46, the input end of the air pump 46 is fixedly connected to an air guide tube 47, the outer wall of the air guide tube 47 is fixedly connected to the inside of the diverter 45, and the output end of the diverter 45 is fixedly connected to a plurality of vacuum suction cups 48.

[0038] Specifically, through the adsorption effect of the vacuum suction cup 48, the battery body 3 can be firmly fixed and limited, ensuring that the battery will not move or shake during transportation or use, thereby improving the stability and safety of the equipment. The design of the limit block 44 can ensure that the battery body 3 is accurately positioned in the required position, ensuring that the distance and relative position between the batteries meet the requirements, and contributing to the normal operation of the overall system. By starting the operation of the air pump 46 and the air duct 47, the battery can be quickly fixed and limited, improving operational efficiency and production efficiency, saving labor costs and time costs. This design is suitable for processing multiple batteries, and can fix and limit multiple batteries at the same time, thereby improving production efficiency and batch processing capabilities.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery module, comprising a base (1), characterized in that: A plurality of screw holes (2) are provided inside the base (1); a plurality of limit plates (4) are fixedly connected to the upper surface of the base (1); the battery body (3) is slidably connected inside the limit plates (4); a support plate (12) is fixedly connected to the upper surface of the base (1); a jacket (5) is fixedly connected to the outer wall of the support plate (12); a water tank (6) is fixedly connected to the upper surface of the base (1); a refrigeration device of a semiconductor refrigeration plate (22) is fixedly connected inside the water tank (6); The heating surface of the semiconductor refrigeration sheet (22) is fixedly connected to a plurality of heat sinks (23), the outer wall of the heat sink (23) is fixedly connected to a condenser (24), the outer wall of the water tank (6) is fixedly connected to a water pump (7), the input end of the water pump (7) is fixedly connected to a water pumping pipe (8), the outer wall of the water pumping pipe (8) is fixedly connected to the inside of the water tank (6), the output end of the water pump (7) is fixedly connected to a delivery pipe (9), the outer wall of the delivery pipe (9) is fixedly connected to the inside of the water tank (6), A condenser tube (10) is fixedly connected, and the outer wall of the condenser tube (10) is fixedly connected to a condenser tube (11). The outer walls of the condenser tube (10) and the condenser tube (11) are both sleeved on the outer wall of the battery body (3). The outer wall of the jacket (5) is fixedly connected to a water pump (13). The input end of the water pump (13) is fixedly connected to a water pump (14). The outer wall of the water pump (14) is fixedly connected to the inside of the condenser tube (10). The output end is fixedly connected to a second delivery pipe (15), the outer wall of the second delivery pipe (15) is fixedly connected to a filter box (16), the lower end of the interior of the filter box (16) is fixedly connected to a return pipe (17), the outer wall of the return pipe (17) is fixedly connected to the interior of a water tank (6), the interior of the filter box (16) is slidably connected to an activated carbon plate (20), the water pump of the activated carbon plate (20) is fixedly connected to a sealing plate (21), and a cleaning component is provided inside the filter box (16).

2. A battery module according to claim 1, characterized in that: The cleaning assembly comprises a cylinder (18), the outer wall of the cylinder (18) is fixedly connected to the top of the filter box (16), the driving end of the cylinder (18) is fixedly connected to a brush (19), and the outer wall of the brush (19) is in contact with the outer wall of the activated carbon plate (20).

3. A battery module according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a fixing plate (25), the outer wall of the fixing plate (25) is slidably connected to a mounting plate (29), the lower surface of the mounting plate (29) is fixedly connected to a heating box (26), the interior of the heating box (26) is fixedly connected to a heating plate (28), the interior of the mounting plate (29) is threadedly connected to a bolt (30), and the outer wall of the bolt (30) is threadedly connected to the interior of the fixing plate (25).

4. A battery module according to claim 3, characterized in that: A plurality of fans (31) are fixedly connected to the interior of the heating box (26), and the outer walls of the fans (31) penetrate the interior of the fixing plate (25).

5. A battery module according to claim 3, characterized in that: The interior of the heating box (26) is fixedly connected to a dustproof net (27), the upper surface of the heating box (26) is fixedly connected to a bracket (32), the interior of the bracket (32) is fixedly connected to an electric push rod (33), the driving end of the electric push rod (33) is fixedly connected to a second brush (34), and the outer wall of the second brush (34) is in contact with the outer wall of the dustproof net (27).

6. A battery module according to claim 3, characterized in that: The outer wall of the fixing plate (25) is fixedly connected to a rubber plate 1 (35), the outer wall of the fixing plate (25) is fixedly connected to a rubber plate 2 (36), and the outer wall of the rubber plate 2 (36) is arranged on the outer wall of the rubber plate 1 (35).

7. A battery module according to claim 6, characterized in that: The outer wall of the rubber plate (35) is fixedly connected to a plurality of telescopic rods (37), the ends of the telescopic rods (37) are fixedly connected to rubber blocks (39), the outer wall of the rubber blocks (39) is slidably connected to the inner wall of the rubber plate (36), the outer wall of the telescopic rods (37) is sleeved with a spring (38), one end of the spring (38) is fixedly connected to the outer wall of the rubber plate (35), and the other end of the spring (38) is fixedly connected to the outer wall of the rubber block (39).

8. A battery module according to claim 1, characterized in that: The top of the battery body (3) is fixedly connected to a left-right symmetrical terminal head (40), and the outer wall of the terminal head (40) is slidably connected to a connecting plate (41).

9. A battery module according to claim 8, characterized in that: The upper surface of the connecting plate (41) is fixedly connected to a second terminal (42), and the outer wall of the second terminal (42) is slidably connected to a wiring head (43).

10. A battery module connecting plate, comprising a battery module according to any one of claims 1 to 9, comprising a limit block (44), characterized in that: The outer wall of the limit block (44) is slidably connected to the upper end of the outer wall of the battery body (3); a diverter (45) is fixedly connected to the interior of the limit block (44); an air pump (46) is fixedly connected to the outer wall of the diverter (45); an input end of the air pump (46) is fixedly connected to an air guide tube (47); an outer wall of the air guide tube (47) is fixedly connected to the interior of the diverter (45); and an output end of the diverter (45) is fixedly connected to a plurality of vacuum suction cups (48).

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