CN116422668A

CN116422668A - Full-automatic cleaning equipment and cleaning method for inner wall of lithium salt barrel of lithium battery

Info

Publication number: CN116422668A
Application number: CN202310431674.6A
Authority: CN
Inventors: 张文博; 郑广瑞; 董泽森; 徐帅
Original assignee: Ningbo Glauber Intelligent Industry Co ltd
Current assignee: Ningbo Glauber Intelligent Industry Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-07-14

Abstract

The invention provides full-automatic cleaning equipment and a cleaning method for the inner wall of a lithium salt barrel of a lithium battery, which belong to the technical field of lithium batteries and comprise the following steps: the cleaning support is provided with a mounting platform, and a positioning mechanism and a pressing mechanism are arranged on two sides of the mounting platform; the cleaning mechanism is arranged on the cleaning bracket and comprises a cleaning rod, a lifting part and a cleaning part; the opening and closing mechanism is arranged on the cleaning support and positioned between the positioning mechanism and the pressing mechanism, and comprises a rotating part, a translation part and a floating part, wherein the floating part is linearly deformed through an elastic piece to realize the clamping connection between the rotating part and the valve. According to the invention, the vertical floating of the rotating part in the vertical direction is realized through the linear deformation of the elastic piece in the floating part, so that the accurate adjustment of the position of the rotating part is realized, and after the clamping fit between the rotating part and the valve is released, the rotating part can still realize automatic reset under the action of the elastic piece, so that the use reliability and flexibility of the opening and closing mechanism are improved.

Description

Full-automatic cleaning equipment and cleaning method for inner wall of lithium salt barrel of lithium battery

Technical Field

The invention belongs to the technical field of lithium batteries, and relates to inner wall cleaning equipment, in particular to full-automatic cleaning equipment and method for the inner wall of a lithium salt barrel of a lithium battery.

Background

The electrolyte lithium salt is taken as an important component of the lithium ion battery, the storage container is usually a 112L stainless steel barrel with a special structure, the quality requirement on raw materials is extremely high due to the production of electrolyte, the impurity requirement is in the level of parts per million (namely ppm), and in order to achieve the purpose of recycling the electrolyte lithium salt barrel and simultaneously ensuring the quality, the barrel must be cleaned so as to reduce the impurity content in the barrel. The traditional method has the defects of high working strength, time and labor waste, low cleaning efficiency, incomplete cleaning, easy volatilization of the solvent and the like.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an inner wall cleaning device which has high cleaning efficiency, can reduce cleaning strength and improve cleaning effect.

The aim of the invention can be achieved by the following technical scheme: full self-cleaning equipment of lithium cell lithium salt bucket inner wall includes:

the device comprises a cleaning support, wherein an installation platform for connecting a barrel seat is arranged on the cleaning support, and a positioning mechanism and a pressing mechanism are arranged on the two sides of the installation platform in an up-down distribution manner, wherein in the cleaning stage, a liquid storage barrel is reversely buckled on the barrel seat, the barrel opening position of the liquid storage barrel is positioned and clamped through the positioning mechanism, and the barrel bottom position of the liquid storage barrel is pressed and fixed through the pressing mechanism, so that the liquid storage barrel reversely buckled on the barrel seat realizes double clamping in the horizontal direction and the vertical direction;

The positioning mechanism comprises a positioning cylinder arranged on the mounting platform, the output end of the positioning cylinder is connected with a connecting rod structure, the connecting rod structure is in a C-shaped structure, two sides of the opening end of the connecting rod structure are respectively connected with a connecting plate, the connecting plates are connected with support plates perpendicular to the moving direction of the connecting plates, the support plates are connected with pushing claws, the closed end of the connecting rod structure is rotationally connected to the mounting platform, when the output end of the positioning cylinder is retracted, one side of the opening end of the connecting rod structure is pulled to horizontally move in the same direction, the closed end of the connecting rod structure is rotated, the other side of the opening end of the connecting rod structure horizontally moves in the opposite direction of the output end of the positioning cylinder, and the opposite movement of the two connecting plates is realized, so that the gravity center of a liquid storage barrel positioned and clamped on a barrel seat through the pushing claws is positioned on the axis of the barrel seat;

the compressing mechanism comprises a compressing cylinder arranged on the cleaning support, the output end of the compressing cylinder is in contact with the bottom of the liquid storage barrel from top to bottom, and the barrel opening of the liquid storage barrel is compressed on the barrel seat, wherein the moving direction of the output end of the compressing cylinder is positioned and clamped on the center of gravity of the liquid storage barrel on the barrel seat;

the cleaning mechanism is arranged on the cleaning bracket and comprises a cleaning rod, a lifting part for driving the cleaning rod to lift so as to enable the cleaning rod to extend into or move out of the barrel opening of the liquid storage barrel, and a cleaning part for enabling the cleaning rod to rotate by 360 degrees;

The opening and closing mechanism is arranged on the cleaning support and is positioned between the positioning mechanism and the pressing mechanism, wherein the opening and closing mechanism rotates a valve on the liquid storage barrel to communicate a cleaning channel between the barrel opening of the liquid storage barrel and the cleaning rod, so that the cleaning rod can enter the liquid storage barrel from the barrel opening of the liquid storage barrel under the action of the lifting part, and the 360-degree cleaning of the inner wall of the liquid storage barrel is realized.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, when the output end of the positioning cylinder stretches out or retracts, one side, connected with the output end of the positioning cylinder, of the opening end of the connecting rod structure moves along with the movement of the output end, and the closed end of the connecting rod structure is driven to rotate clockwise or anticlockwise, so that the other side of the opening end of the connecting rod structure moves reversely along the movement direction of the output end, and the two connecting plates move oppositely or reversely.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, the connecting rod structure comprises an air cylinder connector, a first connecting rod, a second connecting rod and a third connecting rod which are positioned in the same horizontal plane, and the air cylinder connector, the first connecting rod, the second connecting rod and the third connecting rod are arranged in a C shape, wherein the air cylinder connector and the first connecting rod are positioned at one side of the opening end of the connecting rod structure, the second connecting rod is positioned at the closed end of the connecting rod structure, the third connecting rod is positioned at the other side of the opening end of the connecting rod structure, the air cylinder connector is connected with the output end of the positioning air cylinder, one connecting plate of the two connecting plates is positioned between the air cylinder connector and the first connecting rod and is connected with the air cylinder connector and the first connecting rod, and the other connecting plate is connected with the third connecting rod.

In the full-automatic cleaning equipment for the inner wall of the lithium salt bucket of the lithium battery, the sum of the lengths of the air cylinder connector and the first connecting rod is smaller than the length of the third connecting rod, and the second connecting rod is connected to the mounting platform through the rotating shaft, wherein the air cylinder connector is connected between the air cylinder connector and the connecting plate, between the connecting plate and the first connecting rod, between the first connecting rod and the second connecting rod, between the second connecting rod and the third connecting rod, between the third connecting rod and the connecting plate are in pivot connection, and a first sliding structure which enables the moving direction of the connecting plate to be parallel to the moving direction of the positioning air cylinder output end is arranged between the connecting plate and the mounting platform.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, the first sliding structure comprises two third sliding rails which are parallel to each other, one third sliding rail is close to the first connecting rod, the other third sliding rail is close to the third connecting rod, two ends of a connecting plate connected with the first connecting rod are respectively in sliding fit with the two third sliding rails through corresponding third sliding blocks, and the connecting plate connected with the third connecting rod is respectively in sliding fit with the two third sliding rails through corresponding third sliding blocks.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, a lifting air cylinder is further arranged on each support plate, the output end of each lifting air cylinder is connected with a lifting plate, each lifting plate is located above each pushing claw, a first arc surface is arranged on one side, opposite to each pushing claw, of each lifting plate, a second arc surface is arranged on one side, opposite to each lifting plate, of each lifting plate, the radius of a circle where the second arc surface is located is smaller than that of a circle where the first arc surface is located, when the two pushing claws are horizontally positioned and clamped at the barrel opening of the liquid storage barrel under the action of the positioning air cylinder, the lifting plates are synchronously and respectively pressed at the barrel opening of the liquid storage barrel and the barrel bottom of the liquid storage barrel from top to bottom under the action of the pressing air cylinder.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, the liquid outlet channel is arranged on the barrel seat along the axial direction of the barrel seat, the tetrafluoro sealing ring is embedded on the barrel seat, and when the liquid storage barrel is reversely buckled on the barrel seat, the contact gap between the barrel opening and the barrel seat of the liquid storage barrel is sealed through the tetrafluoro sealing ring.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, the opening and closing mechanism comprises a rotating part for rotating the valve on the liquid storage barrel, a translation part for driving the rotating part to horizontally approach or horizontally depart from the valve, and a floating part for driving the rotating part to move up and down along the lifting direction of the cleaning rod, wherein the floating part is in linear deformation along the lifting direction of the cleaning rod through an elastic piece to realize clamping fit between the rotating part and the valve, and the linear deformation direction of the elastic piece is mutually perpendicular to the clamping direction between the rotating part and the valve.

In the full-automatic cleaning device for the inner wall of the lithium salt barrel of the lithium battery, the rotating part comprises a rotating head, a guiding part is arranged on one side of the rotating head facing the valve, wherein the guiding part comprises a clamping point positioned in a plane of a horizontal symmetry axis L of the rotating head, an upper starting point and a lower starting point which are positioned on the upper side and the lower side of the clamping point and are symmetrically arranged on the plane of the horizontal symmetry axis L, when the rotating head is close to the valve, if a valve rod of the valve is positioned between the upper starting point and the clamping point, the valve rod enters the clamping point from the upper starting point when being clamped into the rotating head, and the elastic piece is linearly stretched; if the valve stem is located between the lower starting point and the snap point, then the valve stem has the lower starting point to enter the snap point when snapped into the swivel head, and the resilient member is compressed linearly.

In the full-automatic cleaning device for the inner wall of the lithium salt barrel of the lithium battery, a plane where a connecting line between an upper starting point and a clamping point is located is an upper guide inclined plane, a plane where a connecting line between a lower starting point and the clamping point is located is a lower guide inclined plane, wherein the upper guide inclined plane and the lower guide inclined plane are spliced to form a horn-shaped opening, a clamping groove is formed at the clamping point, when the horizontal height of a valve rod is higher than that of a plane where a horizontal symmetrical axis L of a rotating head is located, the valve rod enters the clamping groove along the upper guide inclined plane and is in clamping fit with the rotating head, and at the moment, an elastic piece is in a linear stretching state; when the horizontal height of the valve rod is lower than that of the plane of the horizontal symmetry axis L of the rotating head, the valve rod enters the clamping groove along the lower guide inclined plane and is in clamping fit with the rotating head, and the elastic piece is in a linear compression state.

In the full-automatic cleaning device for the inner wall of the lithium salt barrel of the lithium battery, the rotating part comprises a rotating base plate, a first sliding rail and a first sliding block, wherein the first sliding rail and the first sliding block are arranged on the rotating base plate; the moving plate is connected with the first sliding block, wherein a rotating motor is arranged on the moving plate, and the output end of the rotating motor is connected with the rotating head through a rotating shaft; the floating part comprises a bearing seat which is nested on the rotating shaft and is internally provided with a bearing, and the bearing seat is connected to the moving plate; the bracket is arranged in an L shape, and one side of the bracket is connected to the rotary substrate; one end of the connecting shaft is connected to the movable plate through a fastener, the other end of the connecting shaft penetrates through the other end of the bracket, the elastic piece is nested on the connecting shaft, and two ends of the elastic piece are respectively clamped between the bracket and the shaft collar of the connecting shaft.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, the lifting part comprises a first substrate, a second sliding structure is arranged between the first substrate and the cleaning support, the second sliding structure comprises a fourth sliding rail connected to the cleaning support and a fourth sliding block connected with the fourth sliding rail in a sliding manner, wherein the fourth sliding block is connected with the first substrate, a lifting motor is arranged on the first substrate, a first transmission structure is arranged between the output end of the lifting motor and the cleaning support, the first transmission structure comprises a gear connected to the output end of the lifting motor and a rack connected to the cleaning support, and meshing transmission is arranged between the gear and the rack.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, the cleaning part comprises a second substrate connected with the first substrate and a cleaning motor installed on the second substrate through a motor bracket, and the output end of the cleaning motor is connected with a second transmission structure, wherein the cleaning rod is connected to the second transmission structure, the second transmission structure comprises a first belt wheel connected with the output end of the cleaning motor, a second belt wheel connected with the cleaning rod and a belt connected with the first belt wheel and the second belt wheel, a rotary connector is connected to the second belt wheel, and the rotary connector is communicated with the cleaning rod and serves as a water inlet of cleaning liquid when the inner wall of the liquid storage barrel is cleaned.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, the cleaning equipment further comprises a drainage mechanism, wherein the drainage mechanism comprises a main drainage pipe communicated with a liquid outlet channel on a barrel seat and two branch drainage pipes communicated with the main drainage pipe, controllable ball valves are respectively arranged on the two branch drainage pipes, a first detection piece for detecting the PH value of water quality and a second detection piece for detecting the conductivity of water quality are arranged on one branch drainage pipe, the water body of the liquid storage barrel after municipal water cleaning is discharged outside the branch drainage pipe without the first detection piece and the second detection piece, deionized water after rinsing is discharged outside the branch drainage pipe by the first detection piece and the second detection piece is arranged, and the deionized water is input into the water tank.

In the full-automatic cleaning equipment for the inner wall of the lithium salt barrel of the lithium battery, the mounting platform is further provided with the collecting part, and the collecting part comprises two collecting boxes mounted on the mounting platform, wherein each collecting box corresponds to the position of the plunger hole on the liquid storage barrel, and the two collecting boxes are integrated on the same water outlet pipe together.

The invention also provides a cleaning method for the inner wall of the lithium salt barrel of the lithium battery, which comprises the following steps:

S1: the liquid storage barrel is reversely buckled on the barrel seat, and the self-centering of the liquid storage barrel on the barrel seat is realized through a positioning air cylinder driving connecting rod structure, so that the gravity center of the liquid storage barrel is positioned on the axis of the barrel seat;

s2: the lifting plate and the oil drum pressing plate are respectively driven by the lifting cylinder and the pressing cylinder to synchronously press the barrel opening and the barrel bottom of the liquid storage barrel;

s3: the translation cylinder drives the rotating head to be close to the valve, and the elastic piece linearly deforms in the vertical direction to realize the clamping of the rotating head and the valve rod of the valve in the horizontal direction;

s4: the rotary head is driven to rotate through the rotary motor by the rotary shaft, the valve is opened, and the liquid outlet channels on the barrel opening and the barrel seat of the liquid storage barrel are conducted;

s5: the cleaning rod enters the liquid storage barrel through the liquid outlet channel under the action of the lifting motor, and is driven to rotate by 360 degrees through the cleaning motor, so that the inner wall of the liquid storage barrel is cleaned;

s6: the municipal water is introduced into the cleaning rod through the rotary connector to realize the flushing of the liquid storage barrel, wherein the branch drain pipe provided with the first detection part and the second detection part is in a closed state through the controllable ball valve, and the branch drain pipe not provided with the first detection part and the second detection part is in an open state through the controllable ball valve;

S7: after the washing is finished, the branch drain pipe which is not provided with the first detection part and the second detection part is closed through the controllable ball valve, the branch drain pipe which is provided with the first detection part and the second detection part is opened, deionized water is introduced into the washing rod through the rotary connector to realize the rinsing of the liquid storage barrel, wherein the PH value and the conductivity in the rinsing water are detected respectively through the first detection part and the second detection part, when the PH value and the conductivity reach preset values, the inner wall of the current liquid storage barrel is indicated to be washed, and the current liquid storage barrel can be moved out from the barrel seat.

Compared with the prior art, the invention has the beneficial effects that:

(1) The rotating part can float up and down in the vertical direction through the linear deformation of the elastic piece in the floating part, so that the position of the rotating part can be accurately adjusted, and after the clamping fit between the rotating part and the valve is released, the rotating part can still be automatically reset under the action of the elastic piece, so that the use reliability and flexibility of the opening and closing mechanism are improved.

(2) The two connecting plates are synchronously moved in opposite directions through the positioning air cylinder, so that the two pushing claws are synchronously moved in opposite directions, and if the edge of the flange plate is contacted with one of the pushing claws, the flange plate can be pushed to move along the direction close to the other pushing claw through the pushing claw, so that the liquid storage barrel with the eccentric back-off arranged on the barrel seat is subjected to self-centering treatment, and the axis of the liquid storage barrel and the axis of the barrel seat are coaxially arranged.

(3) Through setting up lift cylinder and lifter plate for can follow and compress tightly the ring flange to the ring flange of stock solution bucket bung hole department on the bucket seat down, press from both sides the edge of tight ring flange through two pushing claws promptly, compress tightly the ring flange on the bucket seat through two lifter plates, thereby reduce the contact gap between ring flange and the bucket seat, avoid the stock solution bucket to take place to rock in the cleaning process on the one hand, improve abluent security, on the other hand avoid the washing liquid to flow out from the contact gap between ring flange and the bucket seat, improve the utilization ratio of water resource and guarantee the environment around the cleaning equipment.

(4) The gravity center of the liquid storage barrel is positioned on the axis of the barrel seat, so that the axis of the barrel opening of the liquid storage barrel and the axis of the cleaning rod are coaxially arranged, the cleaning rod is ensured to enter and exit the liquid storage barrel in an unobstructed manner under the action of the lifting part, the cleaning reliability of the liquid storage barrel is improved, in addition, the connecting rod structure is adopted to realize the opposite or opposite movement of the two connecting plates, and because the linkage is arranged between all parts in the connecting rod structure, the two connecting plates are smoother when moving in the opposite or opposite directions.

(5) The contact gap between the barrel opening and the barrel seat of the liquid storage barrel is sealed through the tetrafluoro sealing ring, so that the phenomenon of water seepage between the flange plate and the barrel seat when the liquid storage barrel is cleaned is avoided.

Drawings

Fig. 1 is a schematic structural view of a full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery.

Fig. 2 is a schematic structural view of a liquid storage barrel and an opening and closing mechanism according to a preferred embodiment of the present invention.

Fig. 3 is a schematic structural view of an opening and closing mechanism according to a preferred embodiment of the present invention.

Fig. 4 is a schematic structural view of a liquid storage barrel and a positioning mechanism according to a preferred embodiment of the invention.

Fig. 5 is a schematic view of the structure of fig. 4 at another view angle.

FIG. 6 is a schematic diagram of a liquid storage barrel and a cleaning mechanism according to a preferred embodiment of the invention.

Fig. 7 is a schematic view of the structure of fig. 6 at another view angle.

FIG. 8 is a schematic view of a cleaning rack, a positioning mechanism and a drainage mechanism according to a preferred embodiment of the invention.

Fig. 9 is a schematic structural view of a liquid storage barrel according to a preferred embodiment of the present invention.

In the figure, 100, cleaning the bracket; 110. a mounting platform; 120. a barrel seat; 130. a tetrafluoro seal ring; 140. a collection box; 150. a water outlet pipe;

200. a positioning mechanism; 210. positioning a cylinder; 220. a connecting rod structure; 221. a connecting plate; 222. a cylinder connector; 223. a first link; 224. a second link; 225. a third link; 226. a third slide rail; 227. a third slider; 230. a support plate; 240. pushing claws; 241. a first arc surface; 250. a lifting cylinder; 260. a lifting plate; 261. a second arc surface;

300. A compressing mechanism; 310. a compacting cylinder; 320. an oil drum pressing plate; 330. a flexible pressing block;

400. a liquid storage barrel; 410. a valve; 411. a valve stem; 420. a flange plate; 430. a plunger hole;

500. a cleaning mechanism; 510. a cleaning rod; 520. a lifting part; 521. a first substrate; 522. a fourth slide rail; 523. a fourth slider; 524. a lifting motor; 525. a gear; 526. a rack; 530. a cleaning part; 531. a second substrate; 532. cleaning a motor; 533. a first pulley; 534. a second pulley; 535. a belt; 536. a rotary connector;

600. an opening and closing mechanism; 610. a rotating part; 611. a rotating head; 6111. a clamping point; 6112. an upper starting point; 6113. a lower starting point; 6114. an upper guide slope; 6115. a lower guide slope; 6116. a clamping groove; 612. rotating the substrate; 613. a first slide rail; 614. a first slider; 615. a moving plate; 616. a rotating electric machine; 617. a rotation shaft; 620. a translation section; 621. translating the substrate; 622. a second slide rail; 623. a second slider; 624. a translation cylinder; 625. a translation plate; 630. a floating part; 631. an elastic member; 632. a bearing seat; 633. a bracket; 634. a connecting shaft; 6341. a collar;

700. a drainage mechanism; 710. a main drain pipe; 720. a water supporting pipe; 730. a controllable ball valve; 740. a first detecting member; 750. and a second detecting member.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1 to 9, the full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery provided by the invention comprises:

the cleaning device comprises a cleaning support 100, wherein a mounting platform 110 for connecting a barrel seat 120 is arranged on the cleaning support 100, and a positioning mechanism 200 and a pressing mechanism 300 are arranged on the two sides of the mounting platform 110 in an up-down distribution manner, wherein in the cleaning stage, a liquid storage barrel 400 is placed upside down, the barrel opening position in the liquid storage barrel 400 is positioned and clamped through the positioning mechanism 200, the barrel bottom position in the liquid storage barrel 400 is pressed and fixed through the pressing mechanism 300, the liquid storage barrel 400 placed upside down is clamped between the positioning mechanism 200 and the pressing mechanism 300, and the liquid storage barrel 400 placed upside down on the barrel seat 120 is clamped in a double manner in the horizontal direction and the vertical direction;

The cleaning mechanism 500 is installed on the cleaning bracket 100 and is on the same side as the positioning mechanism 200, and the cleaning mechanism 500 comprises a cleaning rod 510, a lifting part 520 for driving the cleaning rod 510 to lift so as to enable the cleaning rod 510 to extend into or move out of the barrel opening of the liquid storage barrel 400, and a cleaning part 530 for enabling the cleaning rod 510360 to rotate so as to avoid forming a cleaning dead angle when cleaning the inner wall of the liquid storage barrel 400, wherein a first substrate 521 where the lifting part 520 is positioned is connected with a second substrate 531 where the cleaning part 530 is positioned, and the length direction of the first substrate 521 is mutually perpendicular to the length direction of the second substrate 531;

the opening and closing mechanism 600 is installed on the cleaning support 100 and is located between the positioning mechanism 200 and the pressing mechanism 300, wherein the opening and closing mechanism 600 includes a rotating portion 610 for rotating the valve 410 on the liquid storage barrel 400, a translation portion 620 for driving the rotating portion 610 to horizontally approach or horizontally depart from the valve 410, and a floating portion 630 for driving the rotating portion 610 to move up and down along the lifting direction of the cleaning rod 510, so that the rotating portion 610 can reliably complete the clamping engagement with the valve 410, wherein the floating portion 630 is linearly deformed along the lifting direction of the cleaning rod 510 by an elastic member 631 to achieve the clamping engagement between the rotating portion 610 and the valve 410, and the linear deformation direction of the elastic member 631 is mutually perpendicular to the clamping engagement direction between the rotating portion 610 and the valve 410.

It should be noted that, in the prior art, the liquid storage barrel 400 has liquid storage barrels 400 with different sizes due to different volumes, so that there may be fine deviation in the position of the valve 410 on the liquid storage barrel 400, and if the height of the rotating part 610 is directly adjusted by the lifting structure, the accurate clamping between the rotating part 610 and the valve 410 may not be completed, because the lifting structure is a cylinder or an oil cylinder, the lifting structure is a cylinder or the like, and the cylinder or the oil cylinder can only realize movement in a larger range, cannot realize accurate movement in a small range, and further cannot reliably rotate the valve 410 to realize opening or closing of the valve 410.

In the present embodiment, the vertical floating of the rotating portion 610 is achieved by the linear deformation of the elastic member 631 in the floating portion 630, so as to achieve accurate adjustment of the position of the rotating portion 610, and after the clamping engagement between the rotating portion 610 and the valve 410 is released, the rotating portion 610 can still achieve automatic reset under the action of the elastic member 631, so as to further improve the reliability and flexibility of the opening and closing mechanism 600.

Preferably, the rotating part 610 includes a rotating head 611, and a guiding part is disposed on a side of the rotating head 611 facing the valve 410, wherein the guiding part includes a clamping point 6111 located on a plane of the horizontal symmetry axis L of the rotating head 611, and an upper starting point 6112 and a lower starting point 6113 located on both sides of the clamping point 6111 and symmetrically disposed on the plane of the horizontal symmetry axis L, when the rotating head 611 approaches the valve 410, if the valve rod 411 of the valve 410 is located between the upper starting point 6112 and the clamping point 6111, the valve rod 411 enters the clamping point 6111 from the upper starting point 6112 when being clamped into the rotating head 611, and the elastic member 631 is linearly stretched; if the valve rod 411 is located between the lower start point 6113 and the click point 6111, the valve rod 411 enters the click point 6111 with the lower start point 6113 snapped into the swivel head 611, and the elastic member 631 is linearly compressed.

Further preferably, the plane of the connecting line between the upper starting point 6112 and the clamping point 6111 is an upper guide inclined plane 6114, the plane of the connecting line between the lower starting point 6113 and the clamping point 6111 is a lower guide inclined plane 6115, wherein the upper guide inclined plane 6114 and the lower guide inclined plane 6115 are spliced to form a horn-shaped opening, a clamping groove 6116 is formed at the clamping point 6111, when the horizontal height of the valve rod 411 is higher than the horizontal height of the plane of the horizontal symmetry axis L of the rotating head 611, the valve rod 411 enters the clamping groove 6116 along the upper guide inclined plane 6114 and forms clamping fit with the rotating head 611, and at the moment, the elastic piece 631 is in a linear stretching state; when the level of the valve rod 411 is lower than the level of the plane of the horizontal symmetry axis L of the rotating head 611, the valve rod 411 enters the clamping groove 6116 along the lower guiding inclined surface 6115 and forms a clamping fit with the rotating head 611, and the elastic member 631 is in a linear compression state.

It should be noted that, as the valve rod 411 slides into the clamping groove 6116 along the upper guiding inclined surface 6114 or slides into the clamping groove 6116 along the lower guiding inclined surface 6115, the elastic member 631 is continuously stretched or compressed, so that a linkage structure is formed between the clamping connection between the valve rod 411 and the rotating head 611 and the linear stretching or compression of the elastic member 631. Compared with the structure that the position of the rotating head 611 is adjusted by the lifting structure, and then the clamping between the valve rod 411 and the rotating head 611 is realized, the horizontal height of the rotating head 611 is required to be continuously adjusted by the lifting structure, and the clamping between the rotating head 611 and the valve rod 411 can be completed by the translation part 620, so that the operation is complex and troublesome, and the floating part 630 in the embodiment can avoid the problem that the rotating head 611 is continuously debugged in the horizontal height, thereby improving the opening and closing accuracy and efficiency of the valve rod 411.

Preferably, the rotating part 610 includes a rotating base plate 612, and a first sliding rail 613 and a first slider 614 slidingly coupled to the first sliding rail 613 are mounted on the rotating base plate 612; the moving plate 615 is connected to the first slider 614, wherein a rotating motor 616 is mounted on the moving plate 615, an output end of the rotating motor 616 is connected to the rotating head 611 through a rotating shaft 617, and the rotating head 611 is driven to rotate through the rotating shaft 617 by the rotating motor 616.

Preferably, the floating part 630 includes a bearing housing 632 nested on the rotation shaft 617 and having a bearing built therein, and the bearing housing 632 is connected to the moving plate 615; a bracket 633, which is provided in an L shape, and one side of the bracket 633 is connected to the rotary substrate 612; one end of the connecting shaft 634 is connected to the movable plate 615 through a fastener, and the other end of the connecting shaft 634 penetrates through the other end of the bracket 633, wherein the elastic member 631 is nested on the connecting shaft 634, and two ends of the elastic member 631 are respectively clamped between the bracket 633 and the collar 6341 of the connecting shaft 634.

It should be noted that, when the rotating head 611 is clamped with the valve rod 411, since the liquid storage barrel 400 is in a fixed state through the positioning mechanism 200 and the pressing mechanism 300, so that the valve rod 411 is also in a fixed state, when the horizontal height of the valve rod 411 is higher than the horizontal height of the plane of the horizontal symmetry axis L of the rotating head 611, the valve rod 411 enters the clamping groove 6116 along the upper guiding inclined plane 6114 and forms a clamping fit with the rotating head 611, the rotating head 611 is required to move upwards along the lifting direction of the cleaning rod 510, so that the moving plate 615 and the bearing seat 632 connected to the moving plate 615 move upwards by virtue of the sliding fit between the first sliding block 614 and the first sliding rail 613, thereby causing the elastic piece 631 to stretch; conversely, when the level of the valve rod 411 is lower than the level of the plane of the horizontal symmetry axis L of the swivel head 611, the valve rod 411 enters the clamping groove 6116 along the lower guiding inclined surface 6115 and forms a clamping fit with the swivel head 611, and the swivel head 611 needs to move downward along the lifting direction of the cleaning rod 510, so that the moving plate 615 and the bearing seat 632 connected to the moving plate 615 move downward by virtue of the sliding fit between the first slider 614 and the first sliding rail 613, thereby causing the compression of the elastic member 631.

Preferably, the translation part 620 includes a translation base 621, and a second slide rail 622 is connected to the translation base 621, and a second slider 623 slidingly connected to the second slide rail 622, wherein the second slider 623 is connected to the rotation base 612; and a translation cylinder 624 mounted on the translation base plate 621, wherein an output end of the translation cylinder 624 is connected with a translation plate 625, the translation plate 625 is connected with the rotation base plate 612, and the translation cylinder 624 drives the rotation base plate 612 to translate along a lifting direction perpendicular to the cleaning rod 510 through the translation plate 625, so that the rotating head 611 is close to or far away from the valve rod 411.

Preferably, the positioning mechanism 200 comprises a positioning cylinder 210 mounted on the mounting platform 110, wherein an output end of the positioning cylinder 210 is connected with a connecting rod structure 220, the connecting rod structure 220 is in a C-shaped structure, two sides of an opening end of the connecting rod structure 220 are respectively connected with a connecting plate 221, each connecting plate 221 is connected with a support plate 230 perpendicular to a moving direction of the corresponding connecting plate 221, a pushing claw 240 is connected to the support plate 230, a closed end of the connecting rod structure 220 is rotatably connected to the mounting platform 110, when an output end of the positioning cylinder 210 is retracted, one side of the opening end of the connecting rod structure 220 is pulled to horizontally move in the same direction, the closed end of the connecting rod structure 220 is rotated, the other side of the opening end of the connecting rod structure 220 horizontally moves in the opposite direction of the output end of the positioning cylinder 210, and the opposite movement of the two connecting plates 221 is realized, so that a gravity center of a liquid storage barrel 400 which is positioned and clamped on the barrel seat 120 through the pushing claw 240 is located on an axis of the barrel seat 210.

In this embodiment, the center of gravity of the liquid storage barrel 400 is located on the axis of the barrel seat 120, so that the axis of the barrel mouth of the liquid storage barrel 400 and the axis of the cleaning rod 510 are coaxially arranged, and the cleaning rod 510 is guaranteed to enter and exit the liquid storage barrel 400 under the action of the lifting part 520, thereby improving the cleaning reliability of the liquid storage barrel 400.

In addition, by positioning the air cylinder 210, the two connecting plates 221 move in opposite directions synchronously, so that the two pushing claws 240 move in opposite directions synchronously, if the edge of the flange 420 contacts with one of the pushing claws 240, the flange 420 can be pushed to move along the direction close to the other pushing claw 240 by the pushing claw 240, so that the liquid storage barrel 400 placed on the barrel seat 120 in an eccentric reverse buckling manner performs self-centering treatment, and the axis of the liquid storage barrel 400 and the axis of the barrel seat 120 are coaxially arranged.

It should be noted that, because the flange 420 at the mouth of the liquid storage barrel 400 is disc-shaped, the opposite sides of the two pushing claws 240 are provided with the first arc surfaces 241, so that the contact area between the pushing claws 240 and the edge of the flange 420 is increased, and the positioning reliability of the liquid storage barrel 400 is further improved.

Further preferably, when the output end of the positioning cylinder 210 is extended or retracted, the side of the opening end of the connecting rod structure 220 connected to the output end of the positioning cylinder 210 moves along with the movement of the output end, so that the closed end of the connecting rod structure 220 is driven to rotate in a clockwise or counterclockwise direction, and the other side of the opening end of the connecting rod structure 220 moves reversely along the movement direction of the output end, thereby realizing the opposite or opposite movement of the two connecting plates 221.

Preferably, the link structure 220 includes a cylinder connector 222, a first link 223, a second link 224 and a third link 225 located in the same horizontal plane, and the cylinder connector 222, the first link 223, the second link 224 and the third link 225 are arranged in a C-shape, wherein the cylinder connector 222, the first link 223 are located at one side of an open end of the link structure 220, the second link 224 is located at a closed end of the link structure 220, the third link 225 is located at the other side of the open end of the link structure 220, and the cylinder connector 222 is connected with an output end of the positioning cylinder 210, one connecting plate 221 of the two connecting plates 221 is located between the cylinder connector 222 and the first link 223 and is connected with the cylinder connector 222 and the first link 223, and the other connecting plate 221 is connected with the third link 225, and when the output end of the positioning cylinder 210 is extended or retracted, the moving directions of the cylinder connector 222 and the first link 223 are parallel and opposite to the moving directions of the third link 225, thereby realizing the opposite or opposite movements of the two connecting plates 221.

In the present embodiment, the whole connecting rod structure 220 is flat and is hidden and connected to the lower surface of the mounting platform 110, so that the volume of the connecting rod structure 220 in the vertical direction is reduced, and the structure of the whole positioning mechanism 200 is more compact.

Further preferably, the sum of the lengths of the cylinder connector 222 and the first link 223 is smaller than the length of the third link 225, and the second link 224 is connected to the mounting platform 110 through a rotating shaft, wherein the first sliding structure that causes the moving direction of the link 221 to be parallel to the moving direction of the output end of the positioning cylinder 210 is arranged between the cylinder connector 222 and the link 221, between the link 221 and the first link 223, between the first link 223 and the second link 224, between the second link 224 and the third link 225, and between the third link 225 and the link 221.

Further preferably, the first sliding structure includes two third sliding rails 226 parallel to each other, one third sliding rail 226 is disposed near the first connecting rod 223, and the other third sliding rail 226 is disposed near the third connecting rod 225, where two ends of the connecting plate 221 connected to the first connecting rod 223 are respectively in sliding fit with the two third sliding rails 226 through corresponding third sliding blocks 227, and the connecting plate 221 connected to the third connecting rod 225 is respectively in sliding fit with the two third sliding rails 226 through corresponding third sliding blocks 227.

Preferably, the pressing mechanism 300 comprises a pressing cylinder 310, and an oil drum pressing plate 320 is connected to an output end of the pressing cylinder 310, wherein a flexible pressing block 330 is connected to the oil drum pressing plate 320.

Preferably, a lifting cylinder 250 is further disposed on each support plate 230, an output end of the lifting cylinder 250 is connected with a lifting plate 260, the lifting plate 260 is located above the pushing claws 240, a second arc surface 261 is disposed on an opposite side of the two lifting plates 260, a radius of a circle where the second arc surface 261 is located is smaller than a radius of a circle where the first arc surface 241 is located, when the two pushing claws 240 horizontally locate and clamp the bung hole of the liquid storage barrel 400 under the action of the locating cylinder 210, the lifting plate 260 synchronously presses the bung hole of the liquid storage barrel 400 and the barrel bottom of the liquid storage barrel 400 from top to bottom under the action of the pressing cylinder 310 under the action of the lifting cylinder 250.

It should be noted that, the lifting cylinder 250 in this embodiment has a guide rod, so as to ensure the verticality of the lifting plate 260 when moving up and down under the action of the lifting cylinder 250.

In this embodiment, by setting the lifting cylinder 250 and the lifting plate 260, the flange 420 at the bung hole of the liquid storage barrel 400 can be tightly pressed on the barrel seat 120 from top to bottom, that is, the flange 420 is tightly pressed on the barrel seat 120 by the two pushing claws 240, so as to reduce the contact gap between the flange 420 and the barrel seat 120, on one hand, the liquid storage barrel 400 is prevented from shaking in the cleaning process, the cleaning safety is improved, on the other hand, the cleaning liquid is prevented from flowing out from the contact gap between the flange 420 and the barrel seat 120, the utilization rate of water resources is improved, and the surrounding environment of the cleaning equipment is ensured.

Further preferably, a liquid outlet channel is arranged on the barrel seat 120 along the axial direction of the barrel seat 120, and a tetrafluoro sealing ring 130 is embedded on the barrel seat 120, when the liquid storage barrel 400 is reversely buckled on the barrel seat 120, a contact gap between a barrel opening of the liquid storage barrel 400 and the barrel seat 120 is sealed by the tetrafluoro sealing ring 130, so that the phenomenon of water seepage between the flange plate 420 and the barrel seat 120 when the liquid storage barrel 400 is cleaned is avoided.

Preferably, a second sliding structure is disposed between the first substrate 521 and the cleaning support 100, and the second sliding structure includes a fourth sliding rail 522 connected to the cleaning support 100, and a fourth sliding block 523 slidingly connected to the fourth sliding rail 522, wherein the fourth sliding block 523 is connected to the first substrate 521, and a lifting motor 524 is mounted on the first substrate 521, and a first transmission structure is disposed between an output end of the lifting motor 524 and the cleaning support 100, wherein the first transmission structure includes a gear 525 connected to an output end of the lifting motor 524, and a rack 526 connected to the cleaning support 100, and the gear 525 and the rack 526 are in meshing transmission.

Preferably, the cleaning part 530 includes a cleaning motor 532 mounted on the second substrate 531 through a motor bracket, and an output end of the cleaning motor 532 is connected with a second transmission structure, wherein the cleaning rod 510 is connected to the second transmission structure, and the cleaning motor 532 drives the cleaning rod 510 to perform circumferential rotation through the second transmission structure, so as to clean the inner wall 360 ° of the liquid storage barrel 400.

Further preferably, the second transmission structure includes a first pulley 533 connected to an output end of the washing motor 532, a second pulley 534 connected to the washing rod 510, and a belt 535 connecting the first pulley 533 and the second pulley 534, wherein a rotary joint 536 is connected to the second pulley 534, and the rotary joint 536 is communicated with the washing rod 510 as a water inlet of the washing liquid when the inner wall of the liquid storage tub 400 is washed.

Preferably, the mounting platform 110 is further provided with a collecting portion, and the collecting portion includes two collecting boxes 140 mounted on the mounting platform 110, wherein each collecting box 140 corresponds to a position of the plunger hole 430 on the liquid storage barrel 400, and the two collecting boxes 140 are integrated together on the same water outlet pipe 150.

Preferably, the washing apparatus further includes a drain mechanism 700, the drain mechanism 700 including a main drain pipe 710 communicating with the tub 120, and two branch drain pipes 720 communicating with the main drain pipe 710, wherein the two branch drain pipes 720 are respectively provided with a controllable ball valve 730, and one of the branch drain pipes 720 is provided with a first detecting member 740 for detecting the PH value of water quality, and a second detecting member 750 for detecting the conductivity of water quality.

It should be noted that, in the present embodiment, the liquid storage barrel 400 needs two steps when cleaning, one step is to rinse the inner wall of the liquid storage barrel 400 by water flow in the municipal waterway, and the other step is to rinse by deionized water. When the municipal water is flushed through the municipal water channel, the branch water drain pipe 720 provided with the first detection member 740 and the second detection member 750 is closed through the controllable ball valve 730, and the other branch water drain pipe 720 is in an open state, so that municipal water sprayed from the cleaning rod 510 enters the main water drain pipe 710 along the barrel seat 120 after the inner wall of the liquid storage barrel 400 is flushed, and is then discharged through the branch water drain pipe 720; when the deionized water is used for rinsing, the branch drain pipe 720 provided with the first detecting element 740 and the second detecting element 750 is in an open state, and the other branch drain pipe 720 is in a closed state, so that the deionized water sprayed from the cleaning rod 510 enters the main drain pipe 710 along the barrel seat 120 after the inner wall of the liquid storage barrel 400 is rinsed, then enters the branch drain pipe 720 provided with the first detecting element 740 and the second detecting element 750, the PH value and the conductivity in the water are detected respectively through the first detecting element 740 and the second detecting element 750, and when the PH value and the conductivity reach preset values, the inner wall of the current liquid storage barrel 400 is indicated to be cleaned, and the current liquid storage barrel 400 can be removed from the positioning mechanism 200.

s1: the liquid storage barrel 400 is reversely buckled on the barrel seat 120, and the connecting rod structure 220 is driven by the positioning air cylinder 210 to realize self-centering of the liquid storage barrel 400 on the barrel seat 120, so that the gravity center of the liquid storage barrel 400 is positioned on the axis of the barrel seat 120;

s2: the lifting plate 260 and the oil drum pressing plate 320 are respectively driven by the lifting cylinder 250 and the pressing cylinder 310 to synchronously press the drum mouth of the liquid storage drum 400 and the drum bottom of the liquid storage drum 400;

s3: the translation cylinder 624 drives the rotating head 611 to approach the valve 410, and the elastic piece 631 linearly deforms in the vertical direction to realize the clamping of the rotating head 611 and the valve rod 411 of the valve 410 in the horizontal direction;

s4: the rotating motor 616 drives the rotating head 611 to rotate through the rotating shaft 617, the valve 410 is opened, and the liquid outlet channel on the barrel opening and the barrel seat 120 of the liquid storage barrel 400 are conducted;

s5: the cleaning rod 510 enters the liquid storage barrel 400 through the liquid outlet channel under the action of the lifting motor 524, and the cleaning motor 532 drives the cleaning rod 510360 DEG to rotate, so that the cleaning of the inner wall of the liquid storage barrel 400 is realized;

s6: the municipal water is introduced into the cleaning rod 510 through the rotary connector 536 to flush the liquid storage barrel 400, wherein the branch drain pipe 720 provided with the first detection member 740 and the second detection member 750 is in a closed state through the controllable ball valve 730, and the branch drain pipe 720 not provided with the first detection member 740 and the second detection member 750 is in an open state through the controllable ball valve 730;

S7: after the flushing is completed, the water draining pipe 720 without the first detecting part 740 and the second detecting part 750 is closed by the controllable ball valve 730, the water draining pipe 720 with the first detecting part 740 and the second detecting part 750 is opened, deionized water is introduced into the cleaning rod 510 through the rotary connector 536 to rinse the liquid storage barrel 400, wherein the PH value and the conductivity in the rinse water are detected respectively by the first detecting part 740 and the second detecting part 750, when the PH value and the conductivity reach the preset values, the inner wall of the current liquid storage barrel 400 is completely cleaned, and the current liquid storage barrel 400 can be removed from the barrel seat 120.

It should be noted that the description of the present invention as it relates to "first", "second", "a", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The terms "coupled," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally formed, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. Full self-cleaning equipment of lithium cell lithium salt bucket inner wall, its characterized in that includes:

2. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 1, wherein when the output end of the positioning cylinder extends or retracts, one side, connected with the output end of the positioning cylinder, of the opening end of the connecting rod structure moves along with the movement of the output end, and the closed end of the connecting rod structure is driven to rotate in a clockwise or anticlockwise direction, so that the other side of the opening end of the connecting rod structure moves reversely along the movement direction of the output end, and the two connecting plates move oppositely or reversely.

3. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 1, wherein the connecting rod structure comprises a cylinder connector, a first connecting rod, a second connecting rod and a third connecting rod which are positioned in the same horizontal plane, and the cylinder connector, the first connecting rod, the second connecting rod and the third connecting rod are arranged in a C shape, wherein the cylinder connector and the first connecting rod are positioned at one side of an opening end of the connecting rod structure, the second connecting rod is positioned at the closed end of the connecting rod structure, the third connecting rod is positioned at the other side of the opening end of the connecting rod structure, the cylinder connector is connected with an output end of a positioning cylinder, one connecting plate of the two connecting plates is positioned between the cylinder connector and the first connecting rod and is connected with the cylinder connector and the first connecting rod, and the other connecting plate is connected with the third connecting rod, and when the output end of the positioning cylinder stretches out or retracts, the moving directions of the cylinder connector and the moving directions of the first connecting rod are parallel and opposite to the moving directions of the third connecting rod, so that the two connecting plates can move oppositely.

4. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 3, wherein the sum of the lengths of the cylinder connector and the first connecting rod is smaller than the length of the third connecting rod, and the second connecting rod is connected to the mounting platform through a rotating shaft, wherein the first sliding structure for enabling the moving direction of the connecting rod to be parallel to the moving direction of the positioning cylinder output end is arranged between the cylinder connector and the connecting plate, between the connecting plate and the first connecting rod, between the first connecting rod and the second connecting rod, between the second connecting rod and the third connecting rod, between the third connecting rod and the connecting plate, and between the connecting plate and the mounting platform.

5. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 3, wherein the first sliding structure comprises two third sliding rails which are parallel to each other, one third sliding rail is close to the first connecting rod, the other third sliding rail is close to the third connecting rod, two ends of a connecting plate connected with the first connecting rod are respectively in sliding fit with the two third sliding rails through corresponding third sliding blocks, and the connecting plate connected with the third connecting rod is respectively in sliding fit with the two third sliding rails through corresponding third sliding blocks.

6. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 1, wherein a lifting cylinder is further arranged on each support plate, the output end of each lifting cylinder is connected with a lifting plate, each lifting plate is located above each pushing claw, a first arc surface is arranged on one side of each pushing claw, a second arc surface is arranged on the other side of each lifting plate, the radius of a circle where the second arc surface is located is smaller than that of a circle where the first arc surface is located, when the two pushing claws are horizontally positioned and clamped on the barrel opening of the liquid storage barrel under the action of the positioning cylinder, the lifting plates are synchronously pressed on the barrel opening of the liquid storage barrel and the barrel bottom of the liquid storage barrel from top to bottom under the action of the pressing cylinder.

7. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 1, wherein the barrel seat is provided with a liquid outlet channel along the axial direction of the barrel seat, and a tetrafluoro sealing ring is embedded on the barrel seat, and when the liquid storage barrel is reversely buckled on the barrel seat, a contact gap between a barrel opening of the liquid storage barrel and the barrel seat is sealed through the tetrafluoro sealing ring.

8. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 1, wherein the opening and closing mechanism comprises a rotating part for rotating a valve on the liquid storage barrel, a translation part for driving the rotating part to horizontally approach or horizontally separate from the valve, and a floating part for driving the rotating part to move up and down along the lifting direction of the cleaning rod, wherein the floating part realizes the clamping fit between the rotating part and the valve by linearly deforming an elastic piece along the lifting direction of the cleaning rod, and the linear deformation direction of the elastic piece is mutually perpendicular to the clamping directions between the rotating part and the valve.

9. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 8, wherein the rotating part comprises a rotating head, a guiding part is arranged on one side of the rotating head facing the valve, the guiding part comprises a clamping point positioned on the plane of the horizontal symmetry axis L of the rotating head, an upper starting point and a lower starting point which are positioned on the upper side and the lower side of the clamping point and are symmetrically arranged on the plane of the horizontal symmetry axis L, when the rotating head is close to the valve, if a valve rod of the valve is positioned between the upper starting point and the clamping point, the valve rod enters the clamping point from the upper starting point when being clamped into the rotating head, and the elastic piece is linearly stretched; if the valve stem is located between the lower starting point and the snap point, then the valve stem has the lower starting point to enter the snap point when snapped into the swivel head, and the resilient member is compressed linearly.

10. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 9, wherein the plane where the connecting line between the upper starting point and the clamping point is located is an upper guide inclined plane, the plane where the connecting line between the lower starting point and the clamping point is located is a lower guide inclined plane, wherein the upper guide inclined plane and the lower guide inclined plane are spliced to form a horn-shaped opening, the clamping point is provided with a clamping groove, and when the horizontal height of the valve rod is higher than the horizontal height of the plane where the horizontal symmetry axis L of the rotating head is located, the valve rod enters the clamping groove along the upper guide inclined plane and forms clamping fit with the rotating head, and the elastic piece is in a linear stretching state; when the horizontal height of the valve rod is lower than that of the plane of the horizontal symmetry axis L of the rotating head, the valve rod enters the clamping groove along the lower guide inclined plane and is in clamping fit with the rotating head, and the elastic piece is in a linear compression state.

11. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 9, wherein the rotating part comprises a rotating base plate, a first sliding rail and a first sliding block, wherein the first sliding rail is arranged on the rotating base plate, and the first sliding block is connected to the first sliding rail in a sliding manner; the moving plate is connected with the first sliding block, wherein a rotating motor is arranged on the moving plate, and the output end of the rotating motor is connected with the rotating head through a rotating shaft; the floating part comprises a bearing seat which is nested on the rotating shaft and is internally provided with a bearing, and the bearing seat is connected to the moving plate; the bracket is arranged in an L shape, and one side of the bracket is connected to the rotary substrate; one end of the connecting shaft is connected to the movable plate through a fastener, the other end of the connecting shaft penetrates through the other end of the bracket, the elastic piece is nested on the connecting shaft, and two ends of the elastic piece are respectively clamped between the bracket and the shaft collar of the connecting shaft.

12. The full-automatic cleaning device for the inner wall of a lithium salt bucket of a lithium battery according to claim 1, wherein the lifting part comprises a first substrate, a second sliding structure is arranged between the first substrate and the cleaning support, the second sliding structure comprises a fourth sliding rail connected to the cleaning support and a fourth sliding block connected with the fourth sliding rail in a sliding manner, the fourth sliding block is connected with the first substrate, a lifting motor is arranged on the first substrate, a first transmission structure is arranged between the output end of the lifting motor and the cleaning support, the first transmission structure comprises a gear connected to the output end of the lifting motor, a rack connected to the cleaning support, and meshing transmission is arranged between the gear and the rack.

13. The full-automatic cleaning device for the inner wall of a lithium salt tank of a lithium battery according to claim 1, wherein the cleaning part comprises a second substrate connected with the first substrate, and a cleaning motor installed on the second substrate through a motor bracket, and the output end of the cleaning motor is connected with a second transmission structure, wherein the cleaning rod is connected to the second transmission structure, and the second transmission structure comprises a first belt wheel connected with the output end of the cleaning motor, a second belt wheel connected with the cleaning rod, and a belt connected with the first belt wheel and the second belt wheel, wherein a rotary connector is connected to the second belt wheel, and the rotary connector is communicated with the cleaning rod and serves as a water inlet of cleaning liquid during cleaning of the inner wall of the liquid storage tank.

14. The full-automatic cleaning device for the inner wall of a lithium salt tank of a lithium battery according to claim 7, wherein the cleaning device further comprises a drainage mechanism, the drainage mechanism comprises a main drainage pipe communicated with a liquid outlet channel on the tank base, and two branch drainage pipes communicated with the main drainage pipe, wherein controllable ball valves are respectively arranged on the two branch drainage pipes, a first detection piece for detecting the PH value of water quality and a second detection piece for detecting the conductivity of water quality are arranged on one branch drainage pipe, the water body after municipal water cleaning is discharged from the liquid storage tank through the branch drainage pipe without the first detection piece and the second detection piece, and deionized water after rinsing is discharged from the branch drainage pipe with the first detection piece and the second detection piece is input into the water tank.

15. The full-automatic cleaning device for the inner wall of a lithium salt barrel of a lithium battery according to claim 1, wherein the mounting platform is further provided with a collecting part, the collecting part comprises two collecting boxes mounted on the mounting platform, each collecting box corresponds to the position of a plunger hole on the liquid storage barrel, and the two collecting boxes are integrated on the same water outlet pipe together.

16. The method for cleaning the inner wall of the lithium salt barrel of the lithium battery is characterized by comprising the following steps: