A lithium battery electrolyte recovery device

Abstract

The application relates to the technical field of lithium battery recycling, and discloses a lithium battery electrolyte recovery device, which comprises a horizontal plate, a lithium battery body and a chassis fixedly installed at the bottom of the horizontal plate, a vertical plate is fixedly installed at the top of the horizontal plate in the vertical direction, a servo lifting part is fixedly installed on the front side of the vertical plate, a puncture assembly is arranged on one side of the top of the horizontal plate, a liquid discharge assembly is arranged on the other side of the top of the horizontal plate, the puncture assembly comprises an upper electric push rod fixedly installed at the output end of the servo lifting part, a fixed push plate is fixedly installed at the telescopic end of the upper electric push rod, the puncture assembly further comprises a matching plate fixedly installed at the top surface of the horizontal plate, a cylinder body is fixedly installed at the middle of the bottom of a U-shaped frame, the distance between the puncture needle body and the bottom surface of the lithium battery body is constant through the arrangement of the puncture assembly, the puncture depth is fixed every time, the situation that the puncture depth of the puncture needle body is insufficient is reduced, and therefore the puncture precision is improved and the subsequent electrolyte can be smoothly discharged.

Description

Technical Field

[0001] This invention relates to the field of lithium battery recycling technology, specifically to a lithium battery electrolyte recycling device. Background Technology

[0002] The global annual growth rate of scrapped power batteries has reached 43%. The scrapped volume of energy storage batteries in Europe and the United States is higher than that in China because they started earlier. This means that, both domestically and internationally, there is an unlimited market prospect for waste battery dismantling and recycling.

[0003] For example, a lithium battery recycling puncture discharge device and its usage method disclosed in CN115425316A includes a frame and a second hydraulic cylinder. The frame has a collection chamber inside, and an L-shaped placement plate is rotatably connected to the inner side of the fixed plate. A cleaning plate is provided at the end of the first screw near the central axis of the frame. The second hydraulic cylinder is installed through the top midpoint of the gantry frame. Slide grooves are provided on both sides of the horizontal plate, and a second screw and a vertical rod are provided. When the second hydraulic cylinder drives the horizontal plate and the puncture rod to descend and puncture the lithium battery, the L-shaped limiting plates at the bottom of the two sets of vertical rods will lock the two sides of the lithium battery to limit it, so that it will not deviate after being pressured by the puncture rod. The distance between the two sets of sliders and the vertical rods can also be adjusted by the screw, so that the L-shaped limiting plates can limit lithium batteries of different sizes.

[0004] However, when puncturing and draining the electrolyte from used lithium batteries, it is necessary to minimize the deviation of the puncture needle's puncture position and angle to maintain the accuracy of the puncture. Current methods for puncturing and discharging used lithium batteries typically employ a cylinder-driven device to drive the puncture needle. During operation, the piston of the cylinder rubs against the cylinder's contour. With the processing of large quantities of used lithium batteries, piston wear occurs. The worn piston ring grooves reduce the cylinder's sealing performance, allowing high-pressure gas to leak through the gaps, affecting the stability of the cylinder's pressure and the controllability of the stroke. This results in a shorter cylinder stroke. In such cases, if the cylinder directly drives the puncture needle, the puncture depth may be insufficient, affecting the subsequent drainage of the electrolyte from the used lithium batteries. Summary of the Invention

[0005] The purpose of this invention is to provide a lithium battery electrolyte recycling device to solve the problem that as a large number of waste lithium batteries are punctured, the piston of the cylinder wears down, resulting in insufficient puncture depth and affecting the subsequent discharge of electrolyte from the waste lithium batteries.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lithium battery electrolyte recycling device, comprising a horizontal plate, a lithium battery body, and a base frame fixedly installed at the bottom of the horizontal plate, wherein a vertical plate is fixedly installed on the top of the horizontal plate, and a servo lifting unit is fixedly installed on one side of the front of the vertical plate.

[0007] Also includes:

[0008] A puncture assembly is provided on one side of the top of the horizontal plate, and a drainage assembly is provided on the other side of the top of the horizontal plate.

[0009] The puncture assembly includes an upper electric push rod fixedly installed at the output end of the servo lifting unit, and a fixed push plate is fixedly installed at the telescopic end of the upper electric push rod.

[0010] The puncture assembly also includes a bonding plate fixedly installed on the top surface of the horizontal plate. The top of the horizontal plate has symmetrical square grooves, and a U-shaped frame is fixedly installed on one side of the bottom of the horizontal plate. A cylinder body is fixedly installed in the middle of the bottom of the U-shaped frame.

[0011] Preferably, a push plate is fixedly connected to the telescopic end of the cylinder body, a fixed plate is slidably installed above the push plate, side electric push rods are symmetrically fixedly installed on both sides of the fixed plate, a vertical rod is fixedly installed at the telescopic end of the side electric push rod, the fitting plate is located between the two square grooves, a slide rod is symmetrically slidably connected inside the push plate, the top end of the slide rod is fixedly connected to the fixed plate, a spring is sleeved on the outside of the slide rod, the top end of the spring is fixedly connected to the fixed plate, and the bottom end of the spring is fixedly connected to the push plate.

[0012] By adopting the above technical solution, the cooperation between the upper and lower pressure plates facilitates the initial clamping of the lithium battery body to the thickness, ensuring a constant distance between the puncture needle body and the bottom surface of the lithium battery body. When the cylinder body drives the push plate to rise and squeeze, the rising height of the lithium battery body is fixed, maintaining a fixed puncture depth each time and reducing the possibility of insufficient puncture depth of the puncture needle body.

[0013] Preferably, two side blocks are symmetrically fixedly connected to the outer side of the fixed plate, the side electric push rod is fixedly installed on the side block, an arc-shaped pressure block is fixedly connected to the side of the vertical rod away from the side electric push rod, and a fixed cover and a puncture needle body are fixedly connected to the top of the fixed plate, with the fixed cover sleeved on the outside of the puncture needle body.

[0014] By adopting the above technical solution, the side electric push rods on both sides are activated. The side electric push rods extend and drive the vertical rod and the arc-shaped pressure block to move. The arc-shaped pressure block presses against the fixing cover. The fixing cover is used to limit and guide the puncture needle body, which improves the accuracy of subsequent puncture of the puncture needle body.

[0015] Preferably, the bonding plate has a vertically formed puncture groove inside, and the puncture groove penetrates the horizontal plate. A collection cover is fixedly installed on the inner side of the puncture groove. The puncture needle body is slidably connected to the collection cover. A sleeve is sleeved on the upper outer side of the vertical rod. A second spring is fixedly connected to the inner top surface of the sleeve. The bottom end of the second spring is fixedly connected to the vertical rod. A lower pressure plate is fixedly connected to the top of the sleeve. An upper pressure plate is also installed above the lower pressure plate.

[0016] By adopting the above technical solution, the collection ring can be screwed and fixed inside the puncture groove, which facilitates the subsequent removal of the collection ring and cleaning of the electrolyte residue inside the collection ring.

[0017] Preferably, a limiting rod is fixedly connected to one side of the top of the lower pressure plate, the limiting rod is slidably connected to the upper pressure plate, a drive motor is fixedly installed on the top of the upper pressure plate, the output end of the drive motor passes through the upper pressure plate and is fixedly connected to a screw part, and the lower pressure plate is threadedly connected to the screw part.

[0018] By adopting the above technical solution, the drive motor drives the screw to rotate, the limiting rod limits the lower pressure plate, the rotation of the screw causes the lower pressure plate to move closer to the upper pressure plate, the lower pressure plate can drive the vertical rod and the fixed plate to rise through the sleeve and spring 2, the fixed plate drives the sliding rod to rise, and the fixed plate stretches spring 1, the fixed plate will also drive the puncture needle body to rise, thereby adjusting the initial position of the puncture needle body until the lower pressure plate is in contact with the outer side of the bonding plate, and the top of the lower pressure plate is in contact with the bottom surface of the lithium battery body.

[0019] Preferably, the drainage assembly includes two connecting plates fixedly installed on the other side of the top of the horizontal plate. A double-ended lead screw is rotatably installed on the inner side of the two connecting plates. A servo motor is fixedly installed on the outer side of one of the connecting plates. The output end of the servo motor is fixedly connected to the double-ended lead screw. Two clamping plates are symmetrically threaded on the outer side of the double-ended lead screw.

[0020] By adopting the above technical solution, the operator starts the servo motor, which drives the double-headed lead screw to rotate, causing the clamping plates on both sides to move closer to each other and clamp and fix the lithium battery body.

[0021] Preferably, a guide rod is fixedly connected between the two connecting plates, the clamping plate is slidably connected to the guide rod, a suction cover is fixedly installed on the top of the horizontal plate, a placement plate is fixedly installed on the outer side of the two connecting plates, two slide rails are fixedly installed on the bottom of the horizontal plate, and a collection box is slidably connected to the inner side of the two slide rails.

[0022] By adopting the above technical solution, the connecting pipe is connected to the external negative pressure extraction pipe, thereby extracting the contents of the collection box, the suction hood and the fitting tube. The electrolyte is extracted in conjunction with the negative pressure, forming a dual-drive mode of gravity drainage and negative pressure extraction, which greatly accelerates the electrolyte precipitation rate.

[0023] Preferably, a filter screen is horizontally fixedly installed inside the collection box, a connecting pipe is fixedly installed at the bottom of the collection box, a round hole is opened inside the placement plate, a fitting tube is fixedly installed between the placement plate and the suction cover, a rotating component is rotatably installed on the outside of the fitting tube, an axial flow fan blade is fixedly connected in an array on the inner side of the rotating component, and an outer tube is symmetrically fixedly installed on the outside of the rotating component.

[0024] By adopting the above technical solution, the extracted airflow will drive the axial flow fan blades to rotate, which in turn drives the rotating parts and the outer tube to rotate.

[0025] Preferably, an extrusion rod is fixedly connected inside the outer tube, and a spring three is sleeved on the outside of the extrusion rod. The spring three is located between the outer end of the extrusion rod and the outer tube. A sealing ring is fixedly connected to the upper part of the outer side of the fitting tube, and a contact ring is fixedly connected to the bottom of the sealing ring.

[0026] By adopting the above technical solution, the extrusion rod will be thrown outward by the centrifugal force of rotation. The extrusion rod will stretch the spring three and squeeze the inclined surface of the contact ring, limiting the contact ring and the sealing ring, reducing the descent and loosening of the sealing ring, thereby sealing and pressing the connection between the fitting tube and the placement plate.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting the puncture assembly, the cooperation of the upper and lower pressure plates facilitates the initial clamping to fit the thickness of the lithium battery body, ensuring a constant distance between the puncture needle body and the bottom surface of the lithium battery body. When the cylinder body subsequently drives the pusher plate to rise and squeeze, the rising height of the lithium battery body remains fixed, maintaining a consistent puncture depth each time. This reduces the possibility of insufficient puncture depth by the puncture needle body, thereby improving puncture accuracy and facilitating the smooth discharge of electrolyte. The specific details are as follows:

[0028] By setting up the puncture assembly, the external mechanical grippers place the lithium battery body at the top center of the bonding plate. Then, the upper electric push rod is activated. As the upper electric push rod extends, it drives the fixed push plate to press the lithium battery body tightly. Next, the side electric push rods on both sides are activated. The side electric push rods extend, causing the vertical rod and the arc-shaped pressure block to move. The arc-shaped pressure block presses against the fixed cover. The fixed cover is used to limit and guide the puncture needle body, improving the accuracy of subsequent puncture by the puncture needle body. The vertical rod drives the sleeve and the lower pressure plate to move. The lower pressure plate drives the limiting rod and the upper pressure plate to move. Next, the drive motor is started, which drives the screw to rotate. The limit rod limits the lower pressure plate. The rotation of the screw causes the lower pressure plate to move closer to the upper pressure plate. The lower pressure plate, through the sleeve and spring two, can drive the vertical rod and the fixed plate to rise. The fixed plate drives the sliding rod to rise, and the fixed plate stretches the spring one. The fixed plate also drives the puncture needle body to rise, thereby adjusting the initial position of the puncture needle body until the lower pressure plate is in contact with the outer side of the bonding plate, and the top of the lower pressure plate is in contact with the bottom surface of the lithium battery body, improving the adaptability to different thicknesses. To ensure the stability of the lithium battery body during fixation, the drive motor continues to rotate, the lower pressure plate remains stationary, and the upper pressure plate approaches the lower pressure plate and presses against the top of the lithium battery body, thus assisting in fixing the lithium battery body. At this time, the cylinder body is activated again, and the cylinder body drives the push plate to rise. The push plate compresses spring one and squeezes the fixing plate. The fixing plate drives the puncture needle body to rise. The fixing plate slides into the sleeve through the vertical rod, and the vertical rod then compresses spring two until spring one and spring two are compressed to their limits, and the puncture needle body rises to the highest point, thus maintaining a constant puncture depth of the puncture needle body. After the puncture needle body punctures and retracts, the electrolyte remaining on the upper outer side of the puncture needle body will be scraped into the collection ring, thereby reducing electrolyte residue on the puncture needle body, reducing corrosion of the puncture needle body, extending the service life of the puncture needle body, reducing instability during lithium battery body puncture, improving puncture accuracy, and maintaining a fixed puncture depth of the puncture needle body, avoiding insufficient puncture depth, and facilitating the smooth discharge of electrolyte later.

[0029] By setting up a drainage assembly, after the lithium battery body is punctured, the upper electric push rod drives the fixed push plate to retract, and the side electric push rod retracts, causing the lower pressure plates and drive motors on both sides to move apart. The external robotic arm then places the punctured lithium battery body on the top center of the placement plate, aligning the puncture position of the lithium battery body with the circular hole on the placement plate. The operator starts the servo motor, which drives the double-ended lead screw to rotate. The guide rod limits the clamping plate, causing the clamping plates on both sides to move closer together and clamp the lithium battery body tightly. The connecting pipe is connected to the external negative pressure extraction pipe, thereby allowing the collection box, suction cover, and bonding tube to be cleaned. The system employs a dual-drive mechanism of gravity-driven flow and negative pressure extraction to extract the electrolyte, significantly accelerating electrolyte precipitation and improving recovery efficiency. The extraction airflow drives axial fan blades, which in turn rotate the rotating components and outer tube. The squeezing rod, subjected to centrifugal force, is thrown outwards, stretching the spring and compressing the inclined surface of the contact ring. This limits the contact ring and sealing ring, reducing the risk of the sealing ring falling off. This seals and presses tightly at the connection between the bonding tube and the placement plate, achieving sealed recovery of the electrolyte within the lithium battery body, reducing electrolyte leakage and pollution, and improving collection efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the first three-dimensional overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the second three-dimensional overall structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the cross-sectional structure of the horizontal plate of the present invention;

[0033] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0034] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B;

[0035] Figure 6 This is a schematic diagram of the cylinder body structure of the present invention;

[0036] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C;

[0037] Figure 8 This is a schematic diagram of the fixed disk structure of the present invention;

[0038] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point D;

[0039] Figure 10This is a schematic diagram of the electric actuator structure of the present invention;

[0040] Figure 11 This is a schematic diagram of the placement plate structure of the present invention;

[0041] Figure 12 This is a schematic cross-sectional view of the collection box of the present invention;

[0042] Figure 13 For the present invention Figure 12 Enlarged structural diagram at point E in the middle.

[0043] In the diagram: 1. Horizontal plate; 2. Base frame; 3. Vertical plate; 4. Servo lifting unit; 5. Puncture assembly; 51. Upper electric push rod; 52. Fixed push plate; 53. Adhesive plate; 54. Square groove; 55. U-shaped frame; 56. Cylinder body; 57. Push plate; 58. Slide rod; 59. Fixed plate; 510. Spring one; 511. Side block; 512. Side electric push rod; 513. Vertical rod; 514. Arc-shaped pressure block; 515. Fixed cover; 516. Puncture needle body; 517. Puncture groove; 518. Collection cover ring; 519. Sleeve; 520. Spring two; 521. Lower pressure plate; 522. Limiting rod; 523. Upper pressure plate; 524. Drive motor; 525. Screw section; 6. Drainage assembly; 61. Connecting plate; 62. Double-ended lead screw; 63. Clamping plate; 64. Guide rod; 65. Suction cover; 66. Placement plate; 67. Slide rail; 68. Collection box; 69. Filter screen; 610. Connecting pipe; 611. Adhesive pipe; 612. Rotating component; 613. Axial flow fan blade; 614. Outer tube; 615. Extrusion rod; 616. Spring three; 617. Sealing ring; 618. Contact ring; 7. Lithium battery body. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see Figure 1 - Figure 2This invention provides a technical solution: a lithium battery electrolyte recovery device, including a horizontal plate 1, a lithium battery body 7, and a base frame 2 fixedly installed at the bottom of the horizontal plate 1. A vertical plate 3 is fixedly installed on the top of the horizontal plate 1, and a servo lifting part 4 is fixedly installed on one side of the front of the vertical plate 3. A piercing component 5 is provided on one side of the top of the horizontal plate 1. The servo lifting part 4 adopts an existing lifting servo module. The lifting servo module combines servo motor technology with an automated equipment component with a precision transmission structure. It is mainly used to achieve high-precision and high-stability motion control in the vertical direction. Its core principle is to convert rotational motion into linear motion by driving transmission components such as gear racks or ball screws through a motor.

[0046] like Figure 1 and Figure 3 - Figure 10 As shown, the puncture assembly 5 includes an upper electric push rod 51 fixedly installed at the output end of the servo lifting unit 4, and a fixed push plate 52 is fixedly installed at the telescopic end of the upper electric push rod 51.

[0047] The puncture assembly 5 also includes a bonding plate 53 fixedly installed on the top surface of the horizontal plate 1. The top of the horizontal plate 1 is symmetrically provided with square grooves 54. A U-shaped frame 55 is fixedly installed on one side of the bottom of the horizontal plate 1. A cylinder body 56 is fixedly installed in the middle of the bottom of the U-shaped frame 55. The U-shaped frame 55 is used to support the cylinder body 56. The bottom of the cylinder body 56 can be attached to the bottom surface through a fixing plate, thereby maintaining the stability of the cylinder body 56 during operation. The cylinder body 56 adopts an adjustable stroke cylinder in the prior art, which can generally be achieved through mechanical adjustment, electrical control or replacement of parts. It is convenient to pre-adjust the stroke before use, and make the stroke of the cylinder not less than the distance traveled by the puncture needle body 516 when it is subsequently punctured to the specified depth, so as to maintain the smooth puncture.

[0048] A push plate 57 is fixedly connected to the telescopic end of the cylinder body 56. A fixed plate 59 is slidably installed above the push plate 57. Side electric push rods 512 are symmetrically fixedly installed on both sides of the fixed plate 59. A vertical rod 513 is fixedly installed at the telescopic end of the side electric push rods 512. The mating plate 53 is located between two square grooves 54. A slide rod 58 is symmetrically slidably connected inside the push plate 57. The top end of the slide rod 58 is fixedly connected to the fixed plate 59. A spring 510 is sleeved on the outside of the slide rod 58. The top end of the spring 510 is fixedly connected to the fixed plate 59. The bottom end of the spring 510 is fixedly connected to the push plate 57. Multiple slide rods 58 can be set to maintain the stability of the rising of the fixed plate 59.

[0049] Two side blocks 511 are symmetrically fixedly connected to the outer side of the fixed plate 59. The side electric push rod 512 is fixedly installed on the side block 511. An arc-shaped pressure block 514 is fixedly connected to the side of the vertical rod 513 away from the side electric push rod 512. A fixed cover 515 and a puncture needle body 516 are fixedly connected to the top of the fixed plate 59. The fixed cover 515 is sleeved on the outside of the puncture needle body 516. When the arc-shaped pressure block 514 presses on the outside of the fixed cover 515, it helps to assist the fixed cover 515 in positioning and guiding, thereby reducing the deviation of the puncture needle body 516 during puncture. The fixed cover 515 and the puncture needle body 516 are fixedly installed by bolts, which facilitates subsequent disassembly and replacement.

[0050] The interior of the bonding plate 53 has a vertically formed puncture groove 517 that penetrates the horizontal plate 1. A collection cover ring 518 is fixedly installed on the inner side of the puncture groove 517. The puncture needle body 516 is slidably connected to the collection cover ring 518. A sleeve 519 is sleeved on the upper outer side of the vertical rod 513. A second spring 520 is fixedly connected to the inner top surface of the sleeve 519. The bottom end of the second spring 520 is fixedly connected to the vertical rod 513. A lower pressure plate 521 is fixedly connected to the top of the sleeve 519. An upper pressure plate 523 is also installed above the lower pressure plate 521.

[0051] A limit rod 522 is fixedly connected to one side of the top of the lower pressure plate 521. The limit rod 522 is slidably connected to the upper pressure plate 523. A drive motor 524 is fixedly installed on the top of the upper pressure plate 523. The output end of the drive motor 524 passes through the upper pressure plate 523 and is fixedly connected to a screw part 525. The lower pressure plate 521 is threadedly connected to the screw part 525.

[0052] Example 1: As Figure 3 - Figure 10 As shown, the external mechanical gripper places the lithium battery body 7 in the top center of the bonding plate 53. Then, the upper electric push rod 51 is activated. When the upper electric push rod 51 extends, it will drive the fixed push plate 52 to press the lithium battery body 7 tightly. Then, the side electric push rods 512 on both sides are activated. The side electric push rods 512 extend and drive the vertical rod 513 and the arc-shaped pressure block 514 to move. The arc-shaped pressure block 514 presses the fixed cover 515. The fixed cover 515 is used to limit and guide the puncture needle body 516, which improves the accuracy of subsequent puncture by the puncture needle body 516.

[0053] The vertical rod 513 drives the sleeve 519 and the lower pressure plate 521 to move. The lower pressure plate 521 drives the limiting rod 522 and the upper pressure plate 523 to move. Then, the drive motor 524 is started, which drives the screw part 525 to rotate. The limiting rod 522 limits the lower pressure plate 521. The rotation of the screw part 525 causes the lower pressure plate 521 to move closer to the upper pressure plate 523. The elastic coefficient of the second spring 520 is greater than that of the first spring 510, so that when the lower pressure plate 521 rises, the second spring 520 will not be stretched. The pressure plate 521, through the sleeve 519 and the second spring 520, can drive the vertical rod 513 and the fixing plate 59 to rise. The fixing plate 59 drives the slide rod 58 to rise, and the fixing plate 59 stretches the first spring 510. The fixing plate 59 also drives the puncture needle body 516 to rise, thereby adjusting the initial position of the puncture needle body 516 until the lower pressure plate 521 is in contact with the outer side of the bonding plate 53, and the top of the lower pressure plate 521 is in contact with the bottom surface of the lithium battery body 7, which improves the stability when fixing lithium battery bodies 7 of different thicknesses and sizes.

[0054] The drive motor 524 continues to rotate, the lower pressure plate 521 remains stationary, and the upper pressure plate 523 moves closer to the lower pressure plate 521 and presses against the top of the lithium battery body 7, thereby assisting in fixing the lithium battery body 7. At this time, the cylinder body 56 is activated, and the cylinder body 56 drives the push plate 57 to rise. The push plate 57 compresses the first spring 510 and squeezes the fixing plate 59. The fixing plate 59 drives the puncture needle body 516 to rise. The fixing plate 59 slides into the sleeve 519 through the vertical rod 513. The vertical rod 513 then compresses the second spring 520 until the first spring 510 and the second spring 520 are compressed to their limits. The puncture needle body 516 rises to its highest point, thereby maintaining a constant puncture depth of the puncture needle body 516.

[0055] After the puncture needle body 516 is retracted, the electrolyte remaining on the upper outer side of the puncture needle body 516 will be scraped into the collection ring 518, thereby reducing the electrolyte residue on the puncture needle body 516, reducing corrosion of the puncture needle body 516, extending the service life of the puncture needle body 516, reducing instability during puncture of the lithium battery body 7, improving puncture accuracy, and maintaining a fixed puncture depth of the puncture needle body 516, avoiding insufficient puncture depth, and facilitating the smooth discharge of electrolyte afterwards.

[0056] like Figure 1 and Figure 11 - Figure 13As shown, a drainage assembly 6 is provided on the other side of the top of the horizontal plate 1. The drainage assembly 6 includes two connecting plates 61 fixedly installed on the other side of the top of the horizontal plate 1. A double-ended lead screw 62 is rotatably installed on the inner side of the two connecting plates 61. A servo motor is fixedly installed on the outer side of one connecting plate 61. The output end of the servo motor is fixedly connected to the double-ended lead screw 62. Two clamping plates 63 are symmetrically threaded on the outer side of the double-ended lead screw 62. Driven by the servo motor, the two clamping plates 63 are brought closer to each other, which plays a clamping and positioning role.

[0057] A guide rod 64 is fixedly connected between the two connecting plates 61. The clamping plate 63 is slidably connected to the guide rod 64. A suction cover 65 is fixedly installed on the top of the horizontal plate 1. A placement plate 66 is fixedly installed on the outer side of the two connecting plates 61. Two slide rails 67 are fixedly installed on the bottom of the horizontal plate 1. A collection box 68 is slidably connected to the inner side of the two slide rails 67, making it easy to slide and remove the collection box 68.

[0058] A filter screen 69 is horizontally fixed inside the collection box 68. A connecting pipe 610 is fixedly installed at the bottom of the collection box 68. A round hole is opened inside the placement plate 66. A bonding pipe 611 is fixedly installed between the placement plate 66 and the suction cover 65. The round hole is connected to the bonding pipe 611 to facilitate the subsequent discharge of electrolyte from the lithium battery body 7. A rotating component 612 is rotatably installed on the outside of the bonding pipe 611. An axial flow fan blade 613 is fixedly connected in an array on the inner side of the rotating component 612. An outer tube 614 is symmetrically fixedly installed on the outside of the rotating component 612.

[0059] An extrusion rod 615 is fixedly connected inside the outer tube 614. A spring 616 is sleeved on the outside of the extrusion rod 615. The spring 616 is located between the outer end of the extrusion rod 615 and the outer tube 614. A sealing ring 617 is fixedly connected to the upper part of the outer side of the fitting tube 611. A contact ring 618 is symmetrically fixedly connected to the bottom of the sealing ring 617. The sealing ring 617 plays a role in sealing and pressing the outer ring at the top of the fitting tube 611.

[0060] Example 2: Figure 11 - Figure 13As shown, after the lithium battery body 7 is punctured, the upper electric push rod 51 drives the fixed push plate 52 to retract, and the side electric push rod 512 retracts, causing the lower pressure plates 521 and drive motor 524 on both sides to move away. The external robotic arm then places the punctured lithium battery body 7 on the top center of the placement plate 66. The puncture position of the lithium battery body 7 is aligned with the circular hole on the placement plate 66. The operator starts the servo motor, which drives the double-headed lead screw 62 to rotate. The guide rod 64 limits the clamping plate 63, causing the clamping plates 63 on both sides to move closer to each other. The clamping plates 63 on both sides clamp and fix the lithium battery body 7. The connecting pipe 610 is connected to the external negative pressure extraction pipe, thereby extracting the contents of the collection box 68, the suction cover 65 and the bonding pipe 611. The electrolyte is extracted by using negative pressure, forming a dual-drive mode of gravity drainage and negative pressure extraction, which greatly accelerates the electrolyte precipitation speed and improves the recovery efficiency.

[0061] The extracted airflow drives the axial fan blade 613 to rotate, which in turn drives the rotating component 612 and the outer tube 614 to rotate. The squeezing rod 615 is thrown outward by the centrifugal force of rotation. The squeezing rod 615 stretches the spring 616 and squeezes the inclined surface of the contact ring 618, limiting the contact ring 618 and the sealing ring 617, reducing the descent and loosening of the sealing ring 617, thereby sealing and pressing the connection between the bonding tube 611 and the placement plate 66. This achieves the sealed recovery of electrolyte in the lithium battery body 7, reduces electrolyte leakage and pollution, and improves the collection effect.

[0062] Working principle: When using this device, firstly, as... Figure 1 - Figure 13As shown, the external mechanical grippers place the lithium battery body 7 at the top center of the bonding plate 53. The side electric push rod 512 extends, driving the vertical rod 513 and the arc-shaped pressure block 514 to move. The drive motor 524 drives the screw part 525 to rotate, so that the lower pressure plate 521 is attached to the outer side of the bonding plate 53, and the top of the lower pressure plate 521 is attached to the bottom surface of the lithium battery body 7. The upper pressure plate 523 will approach the lower pressure plate 521 and press against the top of the lithium battery body 7, thereby assisting in fixing the lithium battery body 7. Then, the cylinder body 56 is activated, and the spring 1 510 and spring 2 520 are compressed to their limits, and the puncture needle body 516 rises to its highest point, thereby maintaining a constant puncture depth of the puncture needle body 516, which facilitates the smooth discharge of electrolyte. After the lithium battery body 7 is punctured, the upper electric push rod 51 drives the fixed push plate 52 to retract, and the side electric push rod 512 retracts, causing the lower pressure plates on both sides to... 521 and drive motor 524 are removed, and the external robotic arm places the punctured lithium battery body 7 on the top center of the placement plate 66. The clamping plates 63 on both sides clamp and fix the lithium battery body 7. The connecting pipe 610 is connected to the external negative pressure extraction pipe, thereby extracting the contents of the collection box 68, the suction cover 65 and the bonding tube 611. The electrolyte is extracted by using negative pressure, forming a dual-drive mode of gravity drainage and negative pressure extraction, which greatly accelerates the electrolyte precipitation speed and improves the recovery efficiency. The extraction airflow will drive the axial flow fan blade 613 to rotate, and the squeezing rod 615 will squeeze the inclined surface of the contact ring 618, limiting the contact ring 618 and the sealing ring 617, reducing the descent and loosening of the sealing ring 617, thereby sealing and pressing the connection between the bonding tube 611 and the placement plate 66, realizing the sealed recovery of the electrolyte in the lithium battery body 7, reducing electrolyte leakage and pollution, and improving the collection effect.

[0063] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0064] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lithium battery electrolyte recycling device, comprising a horizontal plate (1), a lithium battery body (7) and a base frame (2) fixedly installed at the bottom of the horizontal plate (1), wherein a vertical plate (3) is fixedly installed at the top of the horizontal plate (1), and a servo lifting part (4) is fixedly installed on one side of the front of the vertical plate (3). Its features are, Also includes: A puncture assembly (5) is provided on one side of the top of the horizontal plate (1), and a drainage assembly (6) is provided on the other side of the top of the horizontal plate (1). The puncture assembly (5) includes an upper electric push rod (51) fixedly installed at the output end of the servo lifting unit (4), and a fixed push plate (52) is fixedly installed at the telescopic end of the upper electric push rod (51). The puncture assembly (5) also includes a bonding plate (53) fixedly installed on the top surface of the horizontal plate (1). The top of the horizontal plate (1) is symmetrically provided with square grooves (54). A U-shaped frame (55) is fixedly installed on one side of the bottom of the horizontal plate (1). A cylinder body (56) is fixedly installed in the middle of the bottom of the U-shaped frame (55). A push plate (57) is fixedly connected to the telescopic end of the cylinder body (56). A fixed plate (59) is slidably installed above the push plate (57). Side electric pushers are symmetrically fixedly installed on both sides of the fixed plate (59). The rod (512) has a vertical rod (513) fixedly installed at the telescopic end of the side electric push rod (512). The bonding plate (53) is located between the two square grooves (54). The push plate (57) has a sliding rod (58) symmetrically slidably connected inside. The top end of the sliding rod (58) is fixedly connected to the fixed plate (59). The outer side of the sliding rod (58) is sleeved with a spring (510). The top end of the spring (510) is fixedly connected to the fixed plate (59). The bottom end of the spring (510) is fixedly connected to the push plate (57). Two side blocks (511) are symmetrically fixedly connected to the outside of the fixed plate (59). The side electric push rod (512) is fixedly installed on the side block (511). An arc-shaped pressure block (514) is fixedly connected to the side of the vertical rod (513) away from the side electric push rod (512). A fixed cover (515) and a puncture needle body (516) are fixedly connected to the top of the fixed plate (59). The fixed cover (515) is sleeved on the outside of the puncture needle body (516). The bonding plate (53) has a vertical puncture groove (517) inside, and the puncture groove (517) penetrates the horizontal plate (1). A collection cover ring (518) is fixedly installed on the inner side of the puncture groove (517). The puncture needle body (516) is slidably connected to the collection cover ring (518). A sleeve (519) is sleeved on the upper outer side of the vertical rod (513). A spring two (520) is fixedly connected to the inner top surface of the sleeve (519). The bottom end of the spring two (520) is fixedly connected to the vertical rod (513). A lower pressure plate (521) is fixedly connected to the top of the sleeve (519). An upper pressure plate (523) is also installed above the lower pressure plate (521).

2. The lithium battery electrolyte recovery device according to claim 1, characterized in that: A limiting rod (522) is fixedly connected to one side of the top of the lower pressure plate (521). The limiting rod (522) is slidably connected to the upper pressure plate (523). A drive motor (524) is fixedly installed on the top of the upper pressure plate (523). The output end of the drive motor (524) passes through the upper pressure plate (523) and is fixedly connected to a screw part (525). The lower pressure plate (521) is threadedly connected to the screw part (525).

3. The lithium battery electrolyte recovery device according to claim 1, characterized in that: The drainage assembly (6) includes two connecting plates (61) fixedly installed on the other side of the top of the horizontal plate (1). A double-ended lead screw (62) is rotatably installed on the inner side of the two connecting plates (61). A servo motor is fixedly installed on the outer side of one of the connecting plates (61). The output end of the servo motor is fixedly connected to the double-ended lead screw (62). Two clamping plates (63) are symmetrically threaded on the outer side of the double-ended lead screw (62).

4. The lithium battery electrolyte recovery device according to claim 3, characterized in that: A guide rod (64) is fixedly connected between the two connecting plates (61), and the clamping plate (63) is slidably connected to the guide rod (64). A suction cover (65) is fixedly installed on the top of the horizontal plate (1), and a placement plate (66) is fixedly installed on the outer side of the two connecting plates (61). Two slide rails (67) are fixedly installed on the bottom of the horizontal plate (1), and a collection box (68) is slidably connected to the inner side of the two slide rails (67).

5. A lithium battery electrolyte recovery device according to claim 4, characterized in that: A filter screen (69) is fixedly installed horizontally inside the collection box (68). A connecting pipe (610) is fixedly installed at the bottom of the collection box (68). A round hole is opened inside the placement plate (66). A fitting pipe (611) is fixedly installed between the placement plate (66) and the suction cover (65). A rotating component (612) is rotatably installed on the outside of the fitting pipe (611). An axial flow fan blade (613) is fixedly connected in an array on the inside of the rotating component (612). An outer tube (614) is symmetrically fixedly installed on the outside of the rotating component (612).

6. The lithium battery electrolyte recovery device according to claim 5, characterized in that: An extrusion rod (615) is fixedly connected inside the outer tube (614). A spring three (616) is sleeved on the outside of the extrusion rod (615). The spring three (616) is located between the outer end of the extrusion rod (615) and the outer tube (614). A sealing ring (617) is fixedly connected to the upper part of the outer side of the fitting tube (611). A contact ring (618) is fixedly connected to the bottom of the sealing ring (617).

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