Pulling device and pulling system

By designing a lifting device and system with an air knife, the problem of liquid defects caused by residual water droplets on the robotic arm was solved, achieving efficient removal of liquid from the carrier surface and improving the quality and efficiency of solar cell production.

CN224327465UActive Publication Date: 2026-06-05TONGWEI SOLAR ENERGY (CHENGDU) CO LID

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGWEI SOLAR ENERGY (CHENGDU) CO LID
Filing Date
2025-06-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing silicon wafer pulling devices, water droplets remain on the robotic arm and the bottom of the silicon wafer during the pulling process. These water droplets drip during the drying process, causing problems with liquid carry-over.

Method used

Design a lifting device including a tank and a lifting mechanism. The tank has a slot for holding liquid, and a first liquid removal component is provided on the tank. The lifting mechanism includes a lifting component, a gripping component, and a second liquid removal component. The liquid on the surface of the carrier is swept away by an air knife to reduce residue.

Benefits of technology

It effectively removes liquid residue from the surface of the carrier, reduces the impact on subsequent processes, and improves production quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a lifting device and a lifting system. The lifting device comprises a tank body and a lifting mechanism. The tank body comprises a tank body and a first liquid removal assembly, the tank body is provided with a slot, the slot is used for containing liquid for soaking a carrier, and the first liquid removal assembly is used for removing liquid on the carrier. The lifting mechanism comprises a lifting assembly, a grabbing assembly and a second liquid removal assembly, the grabbing assembly is used for grabbing the carrier, and the second liquid removal assembly is arranged on the grabbing assembly; the lifting assembly is used for lifting the grabbing assembly with the carrier, and the second liquid removal assembly is used for removing liquid on the grabbing assembly. The lifting assembly drives the grabbing assembly to extend into the slot, the grabbing assembly grabs the carrier soaked in the liquid, and the lifting assembly drives the grabbing assembly to gradually take out the carrier from the tank body. The first liquid removal assembly on the tank body removes the liquid on the carrier, and the second liquid removal assembly on the grabbing assembly removes the liquid on the grabbing assembly, so that liquid residues can be reduced, and the influence of the liquid residues on subsequent processes can be reduced.
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Description

Technical Field

[0001] This application relates to the field of photovoltaic equipment technology, and in particular to a lifting device and lifting system. Background Technology

[0002] In the fabrication process of solar cells, silicon wafers undergo a series of processes including rough polishing, ozone cleaning, pre-cleaning, texturing, post-cleaning, rounding, hydrofluoric acid passivation, slow pulling, and drying. These processes aim to remove surface mechanical damage layers and contaminants, and to create a pyramidal textured surface. However, the current slow pulling process has drawbacks. After pulling the silicon wafer, a large amount of water droplets remain on the robotic arm and the bottom of the wafer. During the transfer to the drying tank by the robotic arm, the vibration causes these water droplets to drip onto the tank cover. After drying, the expansion and contraction of the tank cover causes the remaining water droplets to roll onto the silicon wafer inside the tank, leading to problems such as poor liquid adhesion.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] Therefore, it is necessary to provide a lifting device and lifting system to address the problem of solar cell quality caused by liquid carried out during the lifting process.

[0005] In a first aspect, a lifting device includes:

[0006] The tank body includes a tank body and a first liquid removal component. The tank body has a slot for holding liquid for soaking a vehicle, and the first liquid removal component is used to remove liquid from the vehicle.

[0007] The lifting mechanism includes a lifting assembly, a gripping assembly, and a second liquid removal assembly. The gripping assembly is used to grip the carrier, and the second liquid removal assembly is disposed on the gripping assembly. The lifting assembly is used to lift the gripping assembly holding the carrier, and the second liquid removal assembly is used to remove liquid from the gripping assembly.

[0008] In one embodiment, the first liquid removal component includes a first air knife disposed on the tank body. The first air knife has a first air cavity and a first air inlet and a first nozzle communicating with the first air cavity. The first air inlet is used to introduce gas, and the first nozzle is used to spray gas to blow away the liquid on the carrier.

[0009] In one embodiment, the first air knife is rotatably connected to the slot body so that the first nozzle faces the slot, and the orientation of the first nozzle forms an angle with the inner wall of the slot body located within the slot.

[0010] In one embodiment, the included angle between the first nozzle and the inner wall of the groove body is α, satisfying 40°≤α≤50°.

[0011] In one embodiment, the first liquid removal component further includes a first air inlet pipe and a first air source, wherein the first air source introduces gas into the first air inlet pipe, and the first air inlet pipe is connected to the first air inlet.

[0012] In one embodiment, the second liquid removal component includes a second air knife disposed on the gripping component. The second air knife has a second air cavity and a second air inlet and a second nozzle communicating with the second air cavity. The second air inlet is used to introduce gas, and the second nozzle is used to spray gas to blow away the liquid on the gripping component.

[0013] In one embodiment, the second liquid removal component further includes a second air inlet pipe and a second air source, wherein the second air source introduces gas into the second air inlet pipe, and the second air inlet pipe is connected to the second air inlet.

[0014] In one embodiment, the gripping assembly includes a connecting component and a gripping component, the connecting component being connected to the lifting assembly, and the gripping component being connected to the connecting component, the gripping component being used to grip the vehicle.

[0015] In one embodiment, the lifting assembly includes a support component and a driving component. The driving component is disposed on the support component and is drivenly connected to the gripping assembly. The driving component is used to drive the gripping assembly to move up and down along the height direction of the support component.

[0016] In a second aspect, a lifting system includes a lifting device as described in the first aspect.

[0017] In the aforementioned lifting device, the lifting mechanism's lifting assembly drives the gripping assembly to extend into the slot. The gripping assembly grips the carrier immersed in the liquid, and the lifting assembly drives the gripping assembly to gradually lift the carrier out of the tank body. A first de-liquidation assembly on the tank body removes the liquid from the carrier, and a second de-liquidation assembly on the gripping assembly removes the liquid from the gripping assembly, thereby reducing liquid residue and minimizing its impact on subsequent processes. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a lifting device provided in an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the structure of a first air knife or a second air knife provided in an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of a lifting mechanism provided in an embodiment of this application.

[0022] Explanation of reference numerals in the attached drawings: 100, lifting device; 1, tank body; 11, tank body; 111, slotting; 112, carrier; 12, first liquid removal assembly; 121, first air knife; 1211, first air inlet; 1212, first nozzle; 2, lifting mechanism; 21, lifting assembly; 211, supporting component; 212, driving component; 22, gripping assembly; 221, connecting component; 222, gripping component; 23, second liquid removal assembly; 231, second air knife; 2311, second air inlet; 2312, second nozzle. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] In the fabrication process of solar cells, silicon wafers undergo a series of processes including rough polishing, ozone cleaning, pre-cleaning, texturing, post-cleaning, rounding, hydrofluoric acid passivation, slow pulling, and drying. These processes aim to remove surface mechanical damage layers and contaminants, and to create a pyramidal textured surface. However, the current slow pulling process has drawbacks. After pulling the silicon wafer, a large amount of water droplets remain on the robotic arm and the bottom of the wafer. During the transfer to the drying tank by the robotic arm, the vibration causes these water droplets to drip onto the tank cover. After drying, the expansion and contraction of the tank cover causes the remaining water droplets to roll onto the silicon wafer inside the tank, leading to problems such as poor liquid adhesion.

[0025] To address the issue of current lifting devices causing liquid leakage and resulting malfunctions, please refer to [link / reference]. Figure 1 In a first aspect, embodiments of this application provide a lifting device 100, including a tank 1 and a lifting mechanism 2. The tank 1 includes a tank body 11 and a first liquid removal component 12. The tank body 11 has a slot 111 for holding liquid for soaking a carrier 112, and the first liquid removal component 12 is used to remove liquid from the carrier 112. The lifting mechanism 2 includes a lifting component 21, a gripping component 22, and a second liquid removal component 23. The gripping component 22 is used to grip the carrier 112, and the second liquid removal component 23 is disposed on the gripping component 22. The lifting component 21 is used to lift the gripping component 22 holding the carrier 112, and the second liquid removal component 23 is used to remove liquid from the gripping component 22. Understandably, the lifting assembly 21 of the lifting mechanism 2 drives the gripping assembly 22 to extend into the slot 111. The gripping assembly 22 grips the carrier 112 immersed in the liquid, and the lifting assembly 21 drives the gripping assembly 22 to gradually lift the carrier 112 out of the tank body 11. The first liquid removal assembly 12 on the tank body 11 removes the liquid from the carrier 112, and the second liquid removal assembly 23 on the gripping assembly 22 removes the liquid from the gripping assembly 22, thereby reducing liquid residue and minimizing the impact of liquid residue on subsequent processes.

[0026] In optional embodiments, the tank body 11 in this application embodiment can be in the shape of a cuboid, cylinder, etc. It can be made of corrosion-resistant materials such as polypropylene, polyvinylidene fluoride, or stainless steel. The top of the tank body 11 is open and recessed to form a groove 111, and the liquid contained in the groove 111 can be deionized water or chemical agents, such as acid or alkali solutions. In this application embodiment, the carrier 112 refers to a basket or similar container used to hold the battery cells. After the carrier 112 holds the battery cells, it is immersed in the liquid in the tank body 11 for cleaning, etching, and other treatments.

[0027] In an optional embodiment, the groove body 11 includes connected sidewalls and a bottom wall, with the sidewalls enclosing the top of the bottom wall to form a groove 111. See also... Figure 1 The first liquid removal component 12 is located on the side wall of the tank body 11 and above the liquid surface.

[0028] In an optional embodiment, the first liquid removal component 12 can remove residual liquid from the surface of the carrier 112 using a vacuum suction nozzle. In other optional embodiments, the first liquid removal component 12 can absorb liquid from the surface of the carrier 112 through contact with a porous absorbent material such as a sponge. Alternatively, the first liquid removal component 12 can remove liquid from the surface of the carrier 112 by providing a hot air heater.

[0029] Please see Figure 1 and Figure 2In some embodiments, the first liquid removal assembly 12 includes a first air knife 121, which is disposed on the tank body 11. The first air knife 121 has a first air chamber and a first air inlet 1211 and a first nozzle 1212 communicating with the first air chamber. The first air inlet 1211 is used to introduce gas, and the first nozzle 1212 is used to spray gas to blow away the liquid on the carrier 112. The first air knife 121 can introduce gas through the first air inlet 1211, so that the gas forms a certain pressure in the first air chamber and is then sprayed out at high speed from the first nozzle 1212. The high-speed airflow can quickly blow away the liquid on the surface of the carrier 112, which can improve the liquid removal efficiency and reduce the liquid residue on the surface of the carrier 112.

[0030] In an optional embodiment, the first air chamber has a tapered profile; that is, the profile of the first air chamber is larger at the first air inlet 1211 and smaller at the first nozzle 1212. This configuration allows the first air chamber to apply greater pressure to the incoming gas, accelerating the airflow and improving the liquid removal effect.

[0031] Please see Figure 1 In optional embodiments, the first air knife 121 may include one, two, three, four, or other quantities. Multiple first air knives 121 may be disposed on the side walls of the tank body 11. For example, two first air knives 121 may be disposed opposite each other on the two side walls of the tank body 11.

[0032] Please see Figure 1 To facilitate adjustment of the blowing angle of the first air knife 121, in some embodiments, the first air knife 121 is rotatably connected to the tank body 11, so that the first nozzle 1212 faces the slot 111, and the first nozzle 1212 forms an angle with the inner wall of the tank body 11 within the slot 111. This arrangement can change the angle between the first nozzle 1212 and the inner wall of the slot 111, allowing the airflow from the first air knife 121 to cover a larger area of ​​the carrier 112. After carriers 112 of different shapes and sizes are immersed in the tank, the surface liquid distribution varies. The rotatable first air knife 121 can flexibly adjust the blowing angle to ensure that the airflow can reach all parts of the carrier 112, including edges, corners, and other areas where liquid may remain, thereby more comprehensively and thoroughly removing liquid from the surface of the carrier 112. A suitable angle allows the airflow to impact the surface of the carrier 112 at an optimal angle. When the airflow ejected from the first nozzle 1212 acts on the surface of the carrier 112 at an inclined angle, it can enhance the shearing force and blowing effect on the liquid. By adjusting the angle so that the airflow impacts the liquid at a certain inclined angle, it can more effectively peel the liquid off the surface of the carrier 112, improving the liquid removal efficiency and quality.

[0033] In some embodiments, the included angle α between the first nozzle 1212 and the inner wall of the tank body 11 satisfies 40°≤α≤50°. Controlling the included angle α within the above range can improve the liquid removal effect of the first air knife 121. Exemplarily, α can be any value within the above range, such as 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, etc.

[0034] In some embodiments, the first liquid removal assembly 12 further includes a first air inlet pipe and a first air source. The first air source introduces gas into the first air inlet pipe, which is connected to the first air inlet 1211. The first air source supplies gas to the first air knife 121 through the first air inlet pipe. Connecting the first air source and the first air knife 121 through the first air inlet pipe facilitates the adjustment of gas flow rate and pressure during the conveying process. Flow regulating valves, pressure regulating valves, and other devices can be installed on the first air inlet pipe to flexibly adjust the amount and pressure of gas delivered to the first air knife 121 according to different carrier 112 types, liquid properties, and liquid removal requirements. This flexibility allows the first air knife 121 to adapt to various different production conditions, improving the versatility and adaptability of the lifting device 100.

[0035] In an optional embodiment, the first air intake pipe may be fixed on the side wall of the tank body 11 or disposed outside the tank body 11.

[0036] In an optional implementation, the first gas source may be an air compressor, a gas storage cylinder, a gas output pipeline, or an air pump, etc.

[0037] Please see Figure 3 The specific structure of the lifting mechanism 2 will be described below. The lifting mechanism 2 includes a lifting component 21, a gripping component 22, and a second liquid removal component 23.

[0038] Please see Figure 3 In some embodiments, the lifting assembly 21 includes a support component 211 and a drive component 212. The drive component 212 is mounted on the support component 211 and is driven to the gripping assembly 22. The drive component 212 drives the gripping assembly 22 to move up and down along the height direction of the support component 211. The support component 211 provides stable support for the entire lifting process, capable of bearing the weight of the drive component 212, the gripping assembly 22, and the gripped carrier 112, ensuring that there will be no swaying, tilting, or collapse during the lifting process, thus guaranteeing the safety and stability of the equipment operation. The drive component 212 can effectively transmit power to the gripping assembly 22, enabling it to achieve lifting movement.

[0039] In an optional embodiment, the drive component 212 can be driven by a motor lead screw, or by a motor synchronous belt and synchronous pulley, etc.

[0040] When a lead screw is used for driving, in some embodiments, the driving component 212 includes a lifting motor, a lead screw, and a slide. The lifting motor is connected to the support component 211, the lead screw is connected to the output shaft of the lifting motor, the slide is driven by the lead screw, and the slide is connected to the gripping assembly 22. The output shaft of the lifting motor drives the lead screw to rotate, and the lead screw is driven by the slide, converting the rotational motion of the lead screw into the linear motion of the slide, enabling the slide to move up and down along the height direction of the support component 211. Using a lead screw and slide to drive the lifting of the gripping assembly 22 provides high transmission efficiency, high rigidity and stability, and the ability to withstand large radial and axial loads while maintaining lifting stability.

[0041] Please see Figure 3 In some embodiments, the gripping component 22 includes a connecting component 221 and a gripping component 222. The connecting component 221 is connected to the lifting component 21, and the gripping component 222 is connected to the connecting component 221. The gripping component 222 is used to grip the carrier 112. Providing the connecting component 221 can increase the connection stability between the gripping component 222 and the lifting component 21.

[0042] Please see Figure 3 In optional embodiments, the gripping components 222 may include multiple components, such as two, three, four, or five. Multiple gripping components 222 can grip different parts of the carrier 112, thereby improving gripping stability. For example, two gripping components 222 are provided at a distance from each other on opposite sides of the connecting component 221, and are used to grip opposite sides of the carrier 112 respectively.

[0043] In optional embodiments, the gripping component 222 can be a pneumatic gripper, a mechanical gripper, a vacuum suction cup, a hook, etc. Specifically, hooks are provided on opposite sides of the carrier 112, and the gripping component 222 is a gripper with a hook, which can hook onto the hook to grip the carrier 112.

[0044] In an optional embodiment, the second liquid removal component 23 can remove residual liquid from the surface of the gripping member 222 using a vacuum suction nozzle. In other optional embodiments, the second liquid removal component 23 can absorb liquid from the surface of the gripping member 222 through contact with a porous absorbent material such as a sponge. Alternatively, the second liquid removal component 23 can remove liquid from the surface of the gripping member 222 by providing a hot air heater.

[0045] Please see Figure 2In some embodiments, the second liquid removal component 23 includes a second air knife 231, which is disposed on the gripping component 22. The second air knife 231 has a second air cavity and a second air inlet 2311 and a second nozzle 2312 communicating with the second air cavity. The second air inlet 2311 is used to introduce gas, and the second nozzle 2312 is used to spray gas to sweep away the liquid on the gripping component 22. The second air knife 231 can introduce gas through the second air inlet 2311, so that the gas forms a certain pressure in the second air cavity and is then sprayed out at high speed from the second nozzle 2312. The high-speed airflow can quickly sweep away the liquid on the surface of the carrier 112, which can improve the liquid removal efficiency and reduce the liquid residue on the surface of the carrier 112.

[0046] In an optional embodiment, the outline of the second air chamber is tapered; that is, the outline dimension of the second air chamber is larger at the second air inlet 2311 and smaller at the second nozzle 2312. This configuration allows the second air chamber to apply greater pressure to the incoming gas, accelerating the airflow and improving the liquid removal effect.

[0047] Please see Figure 3 In an optional embodiment, the second air knife 231 may include two, three, four, or other quantities. The second air knife 231 is correspondingly disposed on each gripping component 222. For example, each gripping component 222 is provided with a second air knife 231, which is used to blow away the liquid on the corresponding gripping component 222.

[0048] In some embodiments, the second liquid removal assembly 23 further includes a second air inlet pipe and a second air source. The second air source supplies gas into the second air inlet pipe, which is connected to the second air inlet 2311. Connecting the second air source and the second air knife 231 via the second air inlet pipe facilitates adjustment of the gas flow rate and pressure during transport. Flow regulating valves, pressure regulating valves, and other devices can be installed on the second air inlet pipe to flexibly adjust the amount and pressure of gas supplied to the second air knife 231 according to different carrier types 112, liquid properties, and liquid removal requirements. This flexibility allows the second air knife 231 to adapt to various production conditions, improving the versatility and adaptability of the lifting device 100.

[0049] In an optional embodiment, the second air intake pipe may be fixed on the gripping member 222 or disposed outside the gripping member 222.

[0050] In an optional implementation, the second gas source may be an air compressor, a gas storage cylinder, a gas output pipeline, or an air pump, etc.

[0051] Secondly, embodiments of this application also provide a lifting system, which includes the lifting device 100 as described in the first aspect. This lifting system can further process solar cells lifted from the tank 1. This lifting system also possesses all the technical effects of the lifting device 100.

[0052] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0053] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A lifting device (100), characterized in that, include: The tank (1) includes a tank body (11) and a first liquid removal component (12). The tank body (11) is provided with a slot (111) for holding liquid for soaking the carrier (112). The first liquid removal component (12) is used to remove liquid from the carrier (112). The lifting mechanism (2) includes a lifting assembly (21), a gripping assembly (22), and a second liquid removal assembly (23). The gripping assembly (22) is used to grip the carrier (112), and the second liquid removal assembly (23) is disposed on the gripping assembly (22). The lifting assembly (21) is used to lift the gripping assembly (22) which is gripping the carrier (112), and the second liquid removal assembly (23) is used to remove the liquid on the gripping assembly (22).

2. The lifting device (100) according to claim 1, characterized in that, The first liquid removal assembly (12) includes a first air knife (121), which is disposed on the tank body (11). The first air knife (121) is provided with a first air cavity and a first air inlet (1211) and a first nozzle (1212) communicating with the first air cavity. The first air inlet (1211) is used to introduce gas, and the first nozzle (1212) is used to spray gas to blow away the liquid on the carrier (112).

3. The lifting device (100) according to claim 2, characterized in that, The first air knife (121) is rotatably connected to the groove body (11) so that the first nozzle (1212) faces the groove (111) and the orientation of the first nozzle (1212) forms an angle with the inner wall of the groove body (11) located in the groove (111).

4. The lifting device (100) according to claim 3, characterized in that, The included angle between the first nozzle (1212) and the inner wall of the groove body (11) is α, which satisfies 40°≤α≤50°.

5. The lifting device (100) according to claim 2, characterized in that, The first liquid removal component (12) further includes a first air inlet pipe and a first air source. The first air source introduces gas into the first air inlet pipe, and the first air inlet pipe is connected to the first air inlet (1211).

6. The lifting device (100) according to claim 1, characterized in that, The second liquid removal component (23) includes a second air knife (231), which is disposed on the gripping component (22). The second air knife (231) is provided with a second air cavity, a second air inlet (2311) and a second nozzle (2312) communicating with the second air cavity. The second air inlet (2311) is used to introduce gas, and the second nozzle (2312) is used to spray gas to sweep away the liquid on the gripping component (22).

7. The lifting device (100) according to claim 6, characterized in that, The second liquid removal component (23) also includes a second air inlet pipe and a second air source. The second air source introduces gas into the second air inlet pipe, and the second air inlet pipe is connected to the second air inlet (2311).

8. The lifting device (100) according to any one of claims 1 to 7, characterized in that, The gripping component (22) includes a connecting component (221) and a gripping component (222). The connecting component (221) is connected to the lifting component (21), and the gripping component (222) is connected to the connecting component (221). The gripping component (222) is used to grip the vehicle (112).

9. The lifting device (100) according to any one of claims 1 to 7, characterized in that, The lifting assembly (21) includes a support component (211) and a drive component (212). The drive component (212) is disposed on the support component (211) and is driven to the gripping assembly (22). The drive component (212) is used to drive the gripping assembly (22) to lift and lower along the height direction of the support component (211).

10. A lifting system, characterized in that, The lifting system includes the lifting device (100) as described in any one of claims 1 to 9.