Liquid supply device, cleaning equipment and dispensing system
By designing a liquid supply device with a connecting box and floating components, the problems of low efficiency of manual liquid supply and high cost of complex liquid supply mechanisms were solved, achieving low-cost and high-efficiency automatic liquid supply.
Patent Information
- Application Number
- CN202422806369.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-15
AI Technical Summary
In existing technologies, manual liquid supply is inefficient and the complex liquid supply mechanism is costly, making it difficult to achieve efficient liquid supply at a low cost.
A liquid supply device was designed, including a connecting component, a liquid supply component, and a floating component. By connecting the connecting box and the open box, the floating component automatically controls the liquid supply when the liquid level changes, forming a communicating vessel structure to achieve automatic replenishment and cessation of the liquid level, thus avoiding the use of complex liquid supply mechanisms.
Automated liquid supply was achieved at a low cost, improving supply efficiency and accuracy, and avoiding the low efficiency of manual liquid supply and the high cost of complex liquid supply mechanisms.
Smart Images
Figure CN223669503U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid delivery technical field especially relates to a liquid supply device, cleaning equipment and point gum system. BACKGROUND
[0002] Now, after the component such as point gum needle completes work, point gum needle will be usually inserted into cleaning tank to make cleaning head use cleaning liquid in cleaning tank to clean point gum needle, and after cleaning liquid is consumed and falls below preset liquid level, cleaning liquid needs to be replenished in cleaning tank in time.
[0003] Generally, canned cleaning liquid is directly poured into cleaning tank by manual work, or complex liquid supply mechanism is used to deliver cleaning liquid into cleaning tank. However, the efficiency of manual liquid supply is low, and the use cost of complex liquid supply mechanism is high. SUMMARY
[0004] In view of the above situation, it is necessary to provide a liquid supply device, cleaning equipment and point gum system to improve liquid supply efficiency on the basis of low cost.
[0005] The embodiment of the application provides a liquid supply device, which comprises:
[0006] A communication assembly comprising an open box and a containing box, the open box is provided with an opening, the containing box is provided with an air inlet hole and a communication hole, and the containing box and the open box are communicated and are used for containing liquid;
[0007] A liquid supply assembly, one end of the liquid supply assembly is communicated with the communication hole, the other end of the liquid supply assembly is communicated with the containing box, and the liquid supply assembly is used for providing liquid from the containing box to the open box when the liquid level in the containing box and the open box is lower than a preset liquid level; and
[0008] A floating assembly, the floating assembly is floatingly arranged in the liquid in the containing box and corresponds to the communication hole, and the floating assembly is used for floatingly blocking the communication hole when the liquid level in the containing box reaches the preset liquid level, so that the liquid supply assembly stops providing liquid under the action of negative pressure, and then the liquid in the containing box and the liquid in the open box restore the same liquid level.
[0009] In some embodiments, the floating assembly comprises:
[0010] A blocking piece corresponding to the communication hole;
[0011] A swing piece, one end of the swing piece is rotationally connected with the containing box through a rotating shaft, and the other end of the swing piece is rotationally connected with the blocking piece; and
[0012] A floating seat, the floating seat is floatingly arranged in the liquid in the containing box and is rotationally connected with the swing piece.
[0013] In some embodiments, the length between the connecting point of the blocking member and the pivot axis of the rotating shaft and the length between the connecting point of the floating seat and the pivot axis of the rotating shaft are in a ratio of 7:3.
[0014] In some embodiments, the end of the swinging member away from the blocking member is provided with a mounting hole for assembling a counterweight.
[0015] In some embodiments, the side of the blocking member facing the communicating hole is provided with a blocking rubber block.
[0016] In some embodiments, the floating seat comprises:
[0017] a floating body floating in the liquid in the containing tank;
[0018] a supporting body protruding from the side of the floating body facing the swinging member and provided with a device slot receiving the swinging member; and
[0019] a connecting rod penetrating the supporting body and the swinging member to rotatably connect the swinging member to the device slot.
[0020] In some embodiments, the open tank is provided with a liquid inlet communicating with the open tank, and the containing tank is provided with a liquid outlet communicating with the containing tank, the liquid inlet and the liquid outlet being in communication and at the same horizontal level.
[0021] In some embodiments, the containing tank is provided with a liquid outlet, and the liquid supply assembly comprises:
[0022] a liquid supply member, one end of the liquid supply member being provided with a protrusion, the protrusion being in communication with the communicating hole through a first connecting pipe, the other end of the liquid supply member being in communication with the liquid outlet through a second connecting pipe, the liquid supply member being provided with a liquid supply cavity containing liquid;
[0023] an end cap covering the liquid supply member and detachably connected to the liquid supply member; and
[0024] a sealing member sleeved on the protrusion and abutting against the end cap.
[0025] The present application also provides a cleaning device comprising a driving member, two cleaning members and the above-mentioned liquid supply device, the two cleaning members being rotatably connected to the opening of the open tank, at least part of the cleaning members being immersed in the liquid in the open tank, and the driving member driving the two cleaning members to rotate towards each other.
[0026] The application further provides a dispensing system, comprising a dispensing needle and the cleaning device, the dispensing needle is movably inserted between the two cleaning members, and the driving member drives the two cleaning members to rotate towards each other, so that the cleaning members soak the liquid in the open box and clean the dispensing needle at the same time.
[0027] The liquid supply device, the cleaning device and the dispensing system are used in the following way: the opening of the open box and the air inlet hole of the containing box are in communication with the external atmosphere, so that the liquid pressure in the open box and the liquid pressure in the containing box are equal to the atmospheric pressure; the containing box and the open box are connected in a way that the open box and the containing box form a communicating vessel, so that the liquid level in the open box and the liquid level in the containing box are always kept at the same height; when the liquid level in the containing box is lowered below the preset liquid level due to the loss of liquid in the open box, the floating assembly is also separated from the communication hole under the driving of the liquid in the containing box, so that the external atmosphere enters the liquid supply assembly through the air inlet hole, the containing box and the communication hole, and the liquid in the liquid supply assembly flows into the containing box to replenish the liquid in the containing box and the open box, so that the liquid level in the containing box and the liquid level in the open box are raised to the preset liquid level; when the liquid level in the containing box reaches the preset liquid level, the floating assembly is also sealed to the communication hole under the buoyancy of the liquid in the containing box, so that the liquid supply assembly stops supplying liquid under the negative pressure, without using a complex liquid supply mechanism to supply liquid, thereby realizing automatic liquid supply at low cost and improving the liquid supply efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 A perspective view of the liquid supply device is shown in the drawings.
[0029] Figure 2 A sectional view of the liquid supply device along the direction II-II is shown in the drawings. Figure 1
[0030] Figure 3 An exploded view of the floating assembly is shown in the drawings. Figure 2
[0031] An exploded view of the liquid supply assembly is shown in the drawings. Figure 4 Figure 1 A sectional view of the liquid supply assembly along the direction V-V is shown in the drawings.
[0032] Figure 5 Figure 4 A perspective view of the dispensing system is shown in the drawings.
[0033] Figure 6 A perspective view of the dispensing system is shown in the drawings.
[0034] Main element symbol explanation: liquid supply device 100, communication assembly 10, open box 11, opening 111, storage groove 112, liquid inlet 113, containing box 12, containing cavity 121, air inlet hole 122, communication hole 123, liquid outlet 124, main box body 125, cover body 126, infusion port 127, first connecting pipe 13, second connecting pipe 14, liquid supply assembly 20, liquid supply piece 21, liquid supply cavity 211, transparent window 212, scale line 2121, liquid supply port 213, protrusion 214, end cover 22, sealing piece 23, floating assembly 30, swing piece 31, mounting hole 311, rotating shaft 32, blocking piece 33, blocking rubber block 331, floating seat 34, floating body 341, support body 342, device groove 3421, connecting rod 343, cleaning equipment 200, driving piece 201, cleaning piece 202, dispensing system 300, dispensing needle 301. DETAILED DESCRIPTION
[0035] The embodiments of the present application will be described in detail below with reference to the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and cannot be understood as a limitation of the present application.
[0036] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are for the purpose of description only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, it should be noted that the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.
[0037] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other, it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.
[0038] Some embodiments of the present application will be described in detail below with reference to the drawings.
[0039] Referring to Figure 1 and Figure 2 The embodiment of the present application provides a liquid supply device 100, which comprises a communication assembly 10, a liquid supply assembly 20 and a floating assembly 30, so as to improve the liquid supply efficiency at low cost.
[0040] Referring to Figure 1 and Figure 2 The communication assembly 10 comprises an open box 11 and a containing box 12, the open box 11 is provided with an opening 111, the containing box 12 is provided with an air inlet hole 122 and a communication hole 123, the containing box 12 and the open box 11 are communicated and are both used for containing liquid, and the liquid level in the containing box 12 is equal to that in the open box 11 under normal circumstances. One end of the liquid supply assembly 20 is communicated with the communication hole 123 through a first connecting pipe 13, and the other end of the liquid supply assembly 20 is communicated with the containing box 12 through a second connecting pipe 14, and the liquid supply assembly 20 is used for supplying liquid to the open box 11 through the containing box 12 when the liquid level in the open box 11 and the containing box 12 is lower than a preset liquid level. The floating assembly 30 is floatingly arranged in the liquid in the containing box 12 and corresponds to the communication hole 123, and the floating assembly 30 is used for floatingly sealing the communication hole 123 when the liquid level in the containing box 12 reaches the preset liquid level, so that the liquid supply assembly 20 stops supplying liquid under the action of negative pressure, and then the liquid in the containing box 12 and the liquid in the open box 11 restore the equal liquid level. Wherein, the opening 111 of the open box 11 is used for rotating and clamping a cleaning piece 202 (as shown in Figure 6 ) which needs to be cleaned outside, and at least part of the cleaning piece 202 is soaked in the liquid in the open box 11, so that the cleaning piece 202 rotates and cleans in the open box 11.
[0041] The liquid supply device 100 is connected with the outside atmosphere through the opening 111 of the opening box 11 and the air inlet hole 122 of the containing box 12, so that the liquid pressure in the opening box 11 and the liquid pressure in the containing box 12 are equal to the atmospheric pressure. The opening box 11 and the containing box 12 are connected to form a communicating vessel, so that the liquid level in the opening box 11 and the liquid level in the containing box 12 are always kept at the same height. When the liquid level in the containing box 12 is lowered below the preset liquid level due to the loss of liquid in the opening box 11, the floating assembly 30 is also driven by the liquid in the containing box 12 to separate from the communicating hole 123. The outside atmosphere enters the liquid supply assembly 20 through the air inlet hole 122, the containing box 12, the communicating hole 123 and the first connecting pipe 13, so that the liquid in the liquid supply assembly 20 flows into the containing box 12 through the second connecting pipe 14 to supplement the liquid in the containing box 12 and the opening box 11. The liquid level in the containing box 12 and the liquid level in the opening box 11 are raised to the preset liquid level. When the liquid level in the containing box 12 reaches the preset liquid level, the floating assembly 30 is also blocked from the communicating hole 123 by the buoyancy of the liquid in the containing box 12. The liquid supply assembly 20 stops supplying liquid under the action of negative pressure, without the need for a complex liquid supply mechanism, thereby improving the liquid supply efficiency at a low cost.
[0042] Please refer to Figure 2 and Figure 3 In some embodiments, the floating assembly 30 includes a swing piece 31, a rotating shaft 32, a blocking piece 33 and a floating seat 34. The blocking piece 33 corresponds to the communicating hole 123. One end of the swing piece 31 is rotatably connected to the side wall of the containing box 12 through the rotating shaft 32. The other end of the swing piece 31 is rotatably connected to the blocking piece 33. The floating seat 34 is floatingly arranged in the liquid in the containing box 12 and is rotatably connected to the swing piece 31. The blocking piece 33 and the rotating shaft 32 are located on both sides of the floating seat 34. The length between the connecting point of the blocking piece 33 and the swing piece 31 and the axis of the rotating shaft 32 is a first length L1. The length between the connecting point of the floating seat 34 and the swing piece 31 and the axis of the rotating shaft 32 is a second length L2. The ratio of the first length L1 to the second length L2 can be 7:3.
[0043] Therefore, by setting the length between the connecting point of the blocking member 33 and the swing member 31 and the axis of the rotating shaft 32 to be greater than the length between the connecting point of the swing member 31 and the floating seat 34 and the axis of the rotating shaft 32, i.e., the first length L1 is greater than the second length L2, the swing member 31, the blocking member 33 and the floating seat 34 form a force-lever structure, the connecting point of the swing member 31 and the floating seat 34 and the axis of the rotating shaft 32 form a power arm, and the connecting point of the blocking member 33 and the swing member 31 and the axis of the rotating shaft 32 form a resistance arm. Since the length of the resistance arm is greater than the length of the power arm in the force-lever structure, when the floating seat 34 moves by a predetermined height along with the liquid in the containing box 12, the height of the movement of the blocking member 33 is much greater than the height of the movement of the floating seat 34, and the floating assembly 30 is more sensitive to the change of the liquid level in the containing box 12, so as to quickly supply liquid to the containing box 12 and improve the efficiency and accuracy of liquid supply.
[0044] It can be understood that, in the embodiment, the ratio of the first length L1 to the second length L2 is 7:3, so that the floating assembly 30 is sensitive to the change of the liquid level in the containing box 12. In other embodiments, on the basis of the first length L1 being greater than the second length L2, the ratio of the first length L1 to the second length L2 can be adjusted according to the use requirement, which will not be described herein again.
[0045] Specifically, the blocking member 33 can be a tumbler structure. The tumbler structure has the characteristics of low gravity center and balance, so that the blocking member 33 always keeps the state of corresponding to the communication hole 123, and the blocking member 33 is prevented from being dislocated from the communication hole 123 due to the influence of other components and factors.
[0046] Please continue to refer to Figure 3 In some embodiments, an installation hole 311 is formed in the end of the swing member 31 away from the blocking member 33, and the installation hole 311 is used to flexibly assemble a counterweight (not shown in the figure) according to the actual situation. The counterweight can be any counterweight block, counterweight part or similar configuration body capable of increasing weight, such as a weight.
[0047] Since the floating seat 34 needs to overcome its own gravity and the gravity of the blocking member 33 when floating under the action of the buoyancy of the liquid, by assembling the counterweight in the installation hole 311, the counterweight can offset part of the gravity of the floating seat 34 and the blocking member 33, so that the floating seat 34 is easy to float under the action of the buoyancy of the liquid in the containing box 12.
[0048] Please refer to Figure 2 and Figure 3 In some embodiments, a blocking rubber block 331 is arranged on the side of the blocking member 33 facing the communication hole 123. The material of the blocking rubber block 331 is rubber.
[0049] Therefore, by arranging the sealing rubber block 331 on the side of the sealing member 33 facing the communication hole 123, the sealing member 33 can seal the communication hole 123 through the sealing rubber block 331, so that the liquid in the containing box 12 can not continuously flow into the opening box 11 through the communication hole 123 after the liquid level reaches the preset level, and the stability of the liquid supply assembly 20 is ensured.
[0050] Please refer to Figure 3 In some embodiments, the floating seat 34 includes a floating body 341, a supporting body 342, and a connecting rod 343. The floating body 341 is floatingly arranged in the liquid in the containing box 12, the supporting body 342 is protrudingly arranged on the side of the floating body 341 facing the swinging member 31 and is provided with a device slot 3421 receiving the swinging member 31, and the connecting rod 343 is arranged through the supporting body 342 and the swinging member 31 to rotatably connect the swinging member 31 to the device slot 3421. For example, the floating body 341 can be any floating part, floating block or similar floating plate capable of floating in the liquid, and the connecting rod 343 can be a bolt.
[0051] Therefore, by arranging the connecting rod 343 through the supporting body 342 and the swinging member 31 to rotatably connect the swinging member 31 to the device slot 3421, the floating seat 34 can drive the swinging member 31 to move the sealing member 33 under the action of the buoyancy of the liquid.
[0052] Please refer to Figure 1 and Figure 2 In some embodiments, the opening box 11 is provided with a liquid inlet 113 communicating with the opening box 11, and the containing box 12 is provided with a liquid outlet 124 communicating with the containing box 12, and the liquid inlet 113 and the liquid outlet 124 are communicated and are at the same level, i.e., at the same horizontal height. The opening box 11 is provided with a receiving slot 112 for containing liquid and communicating with the opening 111 and the liquid inlet 113, respectively.
[0053] Therefore, by arranging the liquid inlet 113 and the liquid outlet 124 at the same level, the liquid in the containing box 12 can sensitively perceive the change of the liquid in the opening box 11, and the liquid in the containing box 12 and the liquid in the opening box 11 can be ensured to simultaneously rise or fall.
[0054] Please refer to Figure 2 In some embodiments, the containing box 12 includes a main box body 125 and a cover body 126, the main box body 125 is provided with a containing cavity 121, the cover body 126 is coveringly arranged on the containing cavity 121 and detachably connected with the main box body 125, the air inlet hole 122 and the communication hole 123 are arranged on the cover body 126.
[0055] Thus, by detachably connecting the main box body 125 and the cover body 126, a split structure is formed between the main box body 125 and the cover body 126, so that the operator can conveniently assemble the floating assembly 30 into the containing cavity 121 of the containing box 12.
[0056] Referring to Figure 4 and Figure 5 In some embodiments, the containing box 12 is provided with a liquid outlet 127, and the liquid supply assembly 20 includes a liquid supply member 21, an end cover 22, and a sealing member 23. The liquid supply member 21 has a protrusion 214 at one end, the protrusion 214 is communicated with the communication hole 123 through the first connecting pipe 13, the other end of the liquid supply member 21 is communicated with the liquid outlet 127 through the second connecting pipe 14, the liquid supply member 21 is provided with a liquid supply cavity 211 for containing liquid, the end cover 22 is arranged on the liquid supply member 21 and detachably connected with the liquid supply member 21, and the sealing member 23 is sleeved on the protrusion 214 and abuts against the end cover 22. Exemplarily, the sealing member 23 can be a sealing ring.
[0057] Thus, by detachably connecting the end cover 22 and the liquid supply member 21, a split structure is formed between the liquid supply member 21 and the end cover 22, so that the liquid in the liquid supply member 21 can be filled into the liquid supply cavity 211 in time after the liquid is used up. In addition, by sleeving the sealing member 23 on the liquid supply member 21 and abutting the sealing member 23 against the end cover 22, the sealing member 23 can maintain the sealing of the liquid supply cavity 211, so that the atmosphere cannot enter the liquid supply cavity 211 from the connection between the end cover 22 and the liquid supply member 21, and the negative pressure state of the liquid supply cavity 211 can be stably maintained when the liquid level in the containing box 12 reaches the preset liquid level.
[0058] Referring to Figure 4 In some embodiments, the liquid supply member 21 has a transparent window 212 with a scale line 2121, and the transparent window 212 is used to display the liquid level in the liquid supply cavity 211. Exemplarily, the transparent window 212 can be glass.
[0059] Thus, by arranging the scale line 2121 on the transparent window 212, the operator can directly observe the liquid in the liquid supply cavity 211 through the transparent window 212, so that the scale line 2121 can intuitively display the liquid level in the liquid supply cavity 211.
[0060] Referring to Figure 2 and Figure 5 In some embodiments, the liquid supply member 21 has a liquid supply port 213 communicated with the liquid supply cavity 211, the containing cavity 121 is communicated with the liquid outlet 127, the liquid supply port 213 and the liquid outlet 127 are communicated, and the distance between the liquid supply port 213 and the bottom wall of the containing cavity 121 is greater than the distance between the liquid outlet 127 and the bottom wall of the containing cavity 121.
[0061] Thus, by setting the distance between the liquid supply port 213 and the bottom wall of the containing cavity 121 greater than the distance between the liquid supply port 127 and the bottom wall of the containing cavity 121, when the atmosphere enters the liquid supply cavity 211 through the communication hole 123, the liquid in the liquid supply cavity 211 flows into the containing cavity 121 by its own gravity.
[0062] Please refer to Figure 6 The embodiment of the present application also provides a cleaning device 200, which comprises a driving member 201, two cleaning members 202 and the liquid supply device 100 described above. The two cleaning members 202 rotate and are clamped to the opening 111 of the opening cavity 11, and at least part of the cleaning members 202 are immersed in the liquid in the opening cavity 11. The driving member 201 drives the two cleaning members 202 to rotate towards each other. Exemplarily, the driving member 201 can be any driving body capable of driving the two cleaning members 202 to rotate towards each other, such as an electric motor, a pneumatic cylinder, etc. The cleaning member 202 can be a roller brush.
[0063] Please continue to refer to Figure 6 The embodiment of the present application also provides a dispensing system 300, which comprises a dispensing needle 301 and the cleaning device 200 described above. The dispensing needle 301 is movably inserted between the two cleaning members 202. The driving member 201 drives the two cleaning members 202 to rotate towards each other, so that the cleaning members 202 are immersed in the liquid in the opening cavity 11 and clean the dispensing needle 301 at the same time.
[0064] The working process of the dispensing system 300 described above is as follows:
[0065] First, the dispensing needle 301 is movably inserted between the two cleaning members 202. The driving member 201 drives the two cleaning members 202 to rotate towards each other, so that the part of the cleaning members 202 exposed to the air is immersed in the opening cavity 11 to absorb the liquid while cleaning the dispensing needle 301. When the liquid in the opening cavity 11 is consumed (caused by being absorbed by the cleaning members 202 or other objects or being volatilized by the air) to a certain volume, the liquid level in the opening cavity 11 and the liquid level in the containing cavity 12 decrease synchronously. At the same time, the floating seat 34 decreases with the liquid in the containing cavity 12. When the liquid level in the opening cavity 11 is lower than a preset liquid level, the floating seat 34 drives the oscillating member 31 to move the blocking member 33 away from the communication hole 123, so that the atmosphere enters the liquid supply cavity 211 from the air inlet hole 122 through the containing cavity 12 and the communication hole 123, and then the liquid in the liquid supply cavity 211 flows into the containing cavity 12 by its own gravity.
[0066] Then, the liquid level in the containing box 12 and the liquid level in the open box 11 slowly rise, the floating seat 34 drives the swing piece 31 to move the blocking piece 33 to approach the communication hole 123 under the buoyancy of the liquid in the containing box 12, when the liquid level in the containing box 12 and the liquid level in the open box 11 slowly rise to the preset liquid level, the blocking piece 33 moves to the communication hole 123 to block the communication hole 123 to form a negative pressure in the liquid supply cavity 211, so that the liquid supply piece 21 stops supplying liquid to the containing box 12 under the action of the negative pressure, without using a complex liquid supply mechanism to supply liquid, thereby improving the liquid supply efficiency on the basis of low cost.
[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.
Claims
1. A liquid supply device characterized by comprising: The application relates to a liquid supply device. The device comprises a communication assembly, a liquid supply assembly and a floating assembly. The communication assembly comprises an open box and a containing box, the open box is provided with an opening, the containing box is provided with an air inlet hole and a communication hole, and the open box and the containing box are communicated and used for containing liquid. The liquid supply assembly is communicated with the communication hole at one end and communicated with the containing box at the other end, and is used for supplying liquid to the open box through the containing box when the liquid level in the containing box and the open box is lower than a preset liquid level.
2. The liquid supply apparatus according to claim 1, wherein The floating assembly is floatingly arranged in the liquid in the containing box and corresponds to the communication hole, and is used for floatingly blocking the communication hole when the liquid level in the containing box reaches the preset liquid level, so that the liquid supply assembly stops supplying liquid under the action of negative pressure, and the liquid in the containing box and the liquid in the open box restore the same liquid level. The floating assembly comprises a blocking piece corresponding to the communication hole, a swing piece rotatably connected with the containing box at one end and rotatably connected with the blocking piece at the other end, and a floating seat floatingly arranged in the liquid in the containing box and rotatably connected with the swing piece. The length between the connecting point of the blocking piece and the swing piece and the axis of the rotating shaft is a first length, the length between the connecting point of the floating seat and the swing piece and the axis of the rotating shaft is a second length, and the ratio of the first length to the second length is 7:
3. The end of the swing piece away from the blocking piece is provided with a mounting hole for assembling a counterweight.
3. The liquid supply apparatus according to claim 2, wherein The side of the blocking piece facing the communication hole is provided with a blocking rubber block.
4. The liquid supply apparatus according to claim 2, wherein The floating seat comprises a floating body floatingly arranged in the liquid in the containing box, a supporting body protruding from the side of the floating body facing the swing piece and provided with a device groove accommodating the swing piece, and a connecting rod penetrating the supporting body and the swing piece to rotatably connect the swing piece with the device groove.
5. The liquid supply apparatus according to claim 2, wherein The open box is provided with a liquid inlet communicated with the open box, the containing box is provided with a liquid outlet communicated with the containing box, and the liquid inlet and the liquid outlet are communicated and at the same horizontal height.
6. The liquid supply apparatus according to claim 2, wherein The containing box is provided with a liquid outlet, and the liquid supply assembly comprises a liquid supply piece, an end cap and a sealing piece. The liquid supply piece has a protrusion at one end, the protrusion is communicated with the communication hole through a first connecting pipe, the other end of the liquid supply piece is communicated with the liquid outlet through a second connecting pipe, the liquid supply piece has a liquid supply cavity containing liquid, the end cap is detachably connected with the liquid supply piece, and the sealing piece is sleeved on the protrusion and abuts against the end cap. The device comprises a driving piece, two cleaning pieces and the liquid supply device of any one of claims 1-8, the two cleaning pieces are rotatably clamped to the opening of the open box, at least part of the cleaning pieces are immersed in the liquid in the open box, and the driving piece drives the two cleaning pieces to rotate towards each other. 7. The liquid supply apparatus according to claim 1, wherein 8. The liquid supply apparatus according to claim 1, wherein 9. A cleaning apparatus, characterized by 10. A dispensing system, comprising: The cleaning device of claim 9, wherein a dispensing needle is movably inserted between the two cleaning members, and the driving member drives the two cleaning members to rotate towards each other, so that the cleaning members soak liquid in the open box while cleaning the dispensing needle.