Water tank lifting device, air conditioner indoor unit and air conditioner

Abstract

The present invention relates to the field of air conditioning technology, and in particular to a water tank lifting device, an air conditioning indoor unit and an air conditioner using the water tank lifting device. The water tank lifting device includes: a fixed structure, a guide structure and a retractable structure. The fixed structure is used to connect a fixed driving member, the guide structure and the retractable structure. The guide structure is used to connect the water tank on the side away from the fixed structure, move in the up and down direction, and prevent position shift during movement. The retractable structure is connected to the driving member. The retractable structure is used to connect the water tank on the side away from the driving member, and drive the water tank to move in the up and down direction, providing tension for the movement of the water tank. The technical solution of the present invention controls the lifting of the water tank by connecting the guide structure and the retractable structure to the fixed structure. The retractable structure provides tension for the lifting of the water tank, and the guide structure can prevent the water tank from shifting during the lifting process. The two work together to make the lifting process more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a water tank lifting device, an air conditioning indoor unit and an air conditioner using the water tank lifting device. Background Art

[0002] At present, the indoor unit of the air conditioner is usually equipped with a water tank to provide water for functions such as humidification and air purification. When the water in the water tank is used up, water needs to be added to the water tank. However, the installation height of the wall-mounted air conditioner is relatively high, which makes it very inconvenient to add water. Therefore, a telescopic water tank is designed in the related art, which is connected to the water tank through an external telescopic rod to control the lifting and lowering of the water tank. However, this design structure is unstable and is prone to malfunction during the lifting process. Summary of the Invention

[0003] The main purpose of the present invention is to provide a water tank lifting device, aiming to improve the stability of the water tank during the lifting process.

[0004] To achieve the above objectives, the present invention provides a water tank lifting device, comprising:

[0005] A fixed structure, wherein a driving member is provided on the fixed structure;

[0006] a guide structure, the guide structure being connected to the fixed structure, the side of the guide structure facing away from the fixed structure being used to connect to the water tank and move in an up-down direction; and

[0007] The retractable structure is connected to the driving member, and the side of the retractable structure away from the driving member is used to connect to the water tank and drive the water tank to move in the up and down directions.

[0008] In one embodiment of the present application, the retractable structure includes:

[0009] a rotary shaft connected to an output shaft of the driving member; and

[0010] A connecting cloth, one side of the connecting cloth is connected to the rotating shaft, and the other side is connected to the water tank.

[0011] In one embodiment of the present application, the retractable structure further includes a rolling platform, which is connected to the fixed structure, the rolling platform is located between the rotating shaft and the water tank, and the connecting cloth is sleeved on the outer peripheral surface of the rolling platform.

[0012] In one embodiment of the present application, the roll-up table includes a roll-up frame and a fixing plate, the fixing plate is connected to one side of the roll-up frame, the fixing plate is connected to the fixing structure, and the connecting cloth is sleeved on the outer peripheral surface of the roll-up frame.

[0013] In one embodiment of the present application, the smoothing platform further comprises a folded combing sheet, which is connected to the fixed structure and is located between the rotating shaft and the smoothing frame, and the free end of the folded combing sheet abuts against the connecting cloth.

[0014] In one embodiment of the present application, the roll-shaped frame is a rectangular frame structure;

[0015] And / or, the roll-shaped frame and the fixing plate are an integrated structure;

[0016] And / or, one end of the rotary shaft is provided with a fixing hole, and the output shaft of the driving member is inserted and fixed in the fixing hole;

[0017] And / or, a rotary bearing is provided at one end of the rotary shaft away from the driving member, and the bearing is fixed to the fixed structure;

[0018] And / or, the width of the folded combing sheet in the up-down direction gradually decreases from the fixed end to the free end;

[0019] And / or, the free end of the folded carding sheet is formed into a blade-like structure.

[0020] In one embodiment of the present application, the fixing structure includes:

[0021] an upper shell, the driving member and the guide structure being fixedly mounted on the upper shell; and

[0022] The water tank is installed in the lower shell, and the guide structure is fixedly connected to the lower shell on a side away from the fixed structure.

[0023] In one embodiment of the present application, an insertion section is provided on one side of the upper shell close to the lower shell, and the insertion section is used to be inserted into the lower shell;

[0024] And / or, the driving member is arranged on the outer wall surface of the upper shell, and the retractable structure is at least partially located in the upper shell and connected to the driving member;

[0025] And / or, the guide structure is arranged in the upper shell.

[0026] In one embodiment of the present application, the guide mechanism includes a lifting column, one end of the lifting column is connected to the upper shell, and the other end of the lifting column is connected to the lower shell.

[0027] In one embodiment of the present application, the lifting column includes a plurality of telescopic sections, and the telescopic sections are sleeve-connected in sequence.

[0028] To achieve the above object, the present invention further provides an air conditioner indoor unit, comprising an air conditioner indoor unit body and a water tank lifting device as described above, wherein the water tank lifting device is connected to the air conditioner indoor unit body.

[0029] To achieve the above object, the present invention further provides an air conditioner, comprising an air conditioner outdoor unit and an air conditioner indoor unit as described above.

[0030] In the present invention, the water tank lifting is controlled by connecting the guide structure and the retractable structure to the fixed structure. The retractable structure provides pulling force for the water tank lifting, and the guide structure can prevent the water tank from positional displacement during the lifting process. The two work together to make the lifting process of the water tank more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural schematic diagram of an air-conditioning indoor unit embodiment of the present invention in a water tank lowered state;

[0032] Figure 2 This is a schematic structural diagram of a water tank lowering state according to an embodiment of a water tank lifting device of the present invention;

[0033] Figure 3 This is a schematic structural diagram of a water tank lifting device embodiment of the present invention in a water tank lifting state;

[0034] Figure 4 This is a schematic diagram of the upper shell structure of an embodiment of a water tank lifting device of the present invention;

[0035] Figure 5 This is a schematic diagram of the lower shell structure of an embodiment of a water tank lifting device of the present invention;

[0036] Figure 6 This is a schematic diagram of the guide structure of an embodiment of a water tank lifting device of the present invention;

[0037] Figure 7 This is a schematic structural diagram of a rolling platform of an embodiment of a water tank lifting device of the present invention;

[0038] Figure 8 This is a schematic diagram of the folded combing piece structure of an embodiment of a water tank lifting device of the present invention;

[0039] Figure 9 This is a structural explosion diagram of an embodiment of a water tank lifting device of the present invention.

[0040] Description of Figure Numbers:

[0041] Label name Label name 100 Water tank lifting device 300 Air conditioner indoor unit body 10 Fixed structure 50 Retractable structure 11 Upper shell 51 Rotary axis 111 Insert segment 511 Rolling bearings 13 lower shell 53 Forming table 131 Water tank bearing platform 531 Rolling frame 200 water tank 533 Fixed plate 30 Guide structure 535 Folding carding sheet 31 Lifting Column 55 Connecting cloth 311 Telescopic section 57 Drive parts

[0042] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] In addition, in the present invention, descriptions such as "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] In the related art, as people pay more and more attention to the environmental quality of daily life, coupled with the poor ventilation in closed environments, and the air conditioning will take away moisture in the air during operation, making the indoor air dry, some current air-conditioning indoor units will have an additional humidification function. When setting the humidification function, the water tank of the humidification module needs to be installed on the indoor unit body. However, when the indoor unit body is a wall-mounted air conditioner, it is very inconvenient to add water to the water tank of the wall-mounted air conditioner because it needs to be installed on the top of the house.

[0048] To address current technical difficulties, the present invention proposes a water tank lifting device, comprising a fixed structure 10, a guide structure 30, and a retractable structure 50. The fixed structure 10 is used to connect the fixed guide structure 30, the retractable structure 50, and the drive member 57. One side of the guide structure 30 is connected to the fixed structure 10, and the side of the guide structure 30 facing away from the fixed structure 10 is used to connect to the water tank 200 and move in the up-down direction to prevent the water tank 200 from shifting due to gravity during the lifting process, which would cause the upper and lower parts of the fixed structure 10 to be unable to close when the water tank 200 is in the raised state. One side of the retractable structure 50 is connected to the drive member 57, and the side of the retractable structure 50 facing away from the drive member 57 is used to connect to the water tank 200 and drive the water tank 200 to move in the up-down direction. When the water tank 200 rises, the retractable structure 50 provides a pulling force, which, together with the guide structure 30, drives the water tank 200 to rise.

[0049] The water tank lifting device configured in this way can control the lifting of the water tank 200 by connecting the guide structure 30 and the retractable structure 50 on the fixed structure 10 during use. The retractable structure 50 provides pulling force for the lifting of the water tank 200, and the guide structure 30 can prevent the water tank 200 from positional displacement during the lifting process. The two work together to make the lifting process of the water tank 200 more stable.

[0050] refer to Figures 2 to 5 In the technical solution of one embodiment of the present application, when providing the fixed structure 10, the following solution can be adopted: the fixed structure 10 includes an upper shell 11 and a lower shell 13, with the driving member 57 and the guide structure 30 fixedly mounted on the upper shell 11; the water tank 200 is mounted within the lower shell 13, and the guide structure 30 is fixedly connected to the lower shell 13 on the side facing away from the fixed structure 10. By dividing the fixed structure 10 into the upper shell 11 and the lower shell 13, and with one end of the driving member 57 and the guide structure 30 fixedly mounted on the upper shell 11, and the other end of the water tank 200 and the guide structure 30 mounted on the lower shell 13, the upper shell 11 and the lower shell 13 are provided separately, which not only facilitates installation but also facilitates the lifting and lowering of the water tank 200. The upper shell 11 and the lower shell 13 can be square, circular, or other shapes to match the shape of the water tank, or the shape of the water tank can be different, all of which are within the scope of protection of this application. The upper shell 11 and the lower shell 13 can be made of plastic or soft rubber, which makes processing and assembly more convenient, reduces the overall weight of the material, and thus reduces the processing cost of the entire product. Of course, other materials, such as aluminum alloy or other materials, can also be used, which are also within the scope of protection of this application.

[0051] Furthermore, if Figure 2 and Figure 3As shown, an insertion section 111 is provided on one side of the upper shell 11 close to the lower shell 13, and the insertion section 111 is used to be inserted into the lower shell 13; the driving member 57 is provided on the outer wall surface of the upper shell 11, and the retractable structure 50 is at least partially located in the upper shell 11 and is connected to the driving member 57. The guide structure 30 is provided in the upper shell 11. The upper shell 11 supports and fixes the driving member 57 and the retractable structure 50, and controls the retractable structure 50 through the driving member 57 to drive the lower shell 13 to rise and fall, thereby driving the water tank 200 to rise and fall, making the connection more stable and the lifting process more stable. Providing the driving member 57 on the outer wall surface of the upper shell 11 can save the placement space in the upper shell 11, and the insertion section 111 is used to be inserted into the lower shell 13, which can make the installation and cooperation of the two more stable.

[0052] Further, refer to Figure 2 、 Figure 3 and Figure 9 As shown, the driving member 57 is a motor. A motor mounting hole (not shown) is provided on the upper shell 11. The motor is fixed to the outer wall of the upper shell 11 by bolts. The output shaft of the motor passes through the wall of the upper shell 11 and is connected to the retractable structure 50. The motor can rotate forward and reverse. In this embodiment, the motor rotates forward to rise, and reverses to fall. When it rises to the top, the motor self-locks to prevent the water tank 200 from falling. The wall of the upper shell 11 also has a mounting hole (not shown) for mounting the guide structure 30. One side of the guide structure 30 is fixed to the inner wall of the upper shell 11 by bolts. To facilitate installation and fixation, in this embodiment, the guide structure 30 is in the shape of a quadrangular prism, and its plane is in contact with the inner wall of the upper shell 11, so that the two can be better installed and fixed.

[0053] like Figure 3 and Figure 5As shown, the lower shell 13 is used to mount the water tank 200, and the side of the guide structure 30 facing away from the fixed structure 10 is also fixedly connected to the lower shell 13. The connection method is similar to the connection method with the upper shell 11 and will not be repeated here. In this embodiment, the lower shell 13 also includes a water tank support platform 131, which is plugged into the inner side wall of the lower shell 13 and fixed to the side wall by screws. One end of the guide structure 30 is fixed to the water tank support platform 131 by bolts. In order to facilitate production and processing flexibility, the lower shell 13 and the water tank support platform 131 can also be integrally formed, and the water tank 200 can be directly inserted into the lower shell 13. An insertion section 111 is integrally formed on one side of the upper shell 11 near the lower shell 13. The diameter of the insertion section 111 is smaller than the diameter of the main part of the upper shell 11. The insertion section 111 and the upper shell 11 are stepped, and the diameter of the insertion section 111 is smaller than the diameter of the lower shell 13. After the upper shell 11 is raised, the insertion section 111 can be inserted into the lower shell 13 to form a whole. By separating the upper shell 11 and the lower shell 13 and providing the insertion section 111 on the side of the upper shell 11 near the lower shell 13, the insertion section 111 can be inserted into the lower shell 13 after the water tank 200 is raised. This makes the connection more stable after the water tank 200 is raised, and the upper shell 11 and the lower shell 13 are tightly connected, which looks more beautiful and provides a better user experience.

[0054] In one embodiment of the present application, Figure 6 and 9 As shown, the guide mechanism includes a lifting column 31, one end of which is connected to the upper shell 11, and the other end of which is connected to the lower shell 13. The lifting column 31 connects the upper shell 11 and the lower shell 13. When the lower shell 13 rises, the lifting column 31 retracts; when the lower shell 13 descends, the lifting column 31 extends, guiding the lower shell 13 as it rises or descends, preventing it from shifting during the ascent or descent, and further improving the stability of the lift.

[0055] Furthermore, if Figure 6 As shown, the lifting column 31 includes multiple telescopic sections 311, which are sequentially connected and sleeved. The diameter of the telescopic sections 311 gradually decreases along the contraction direction, and adjacent telescopic sections 311 have an overfit or clearance fit. When the lower shell 13 rises to the position of the upper shell 11, the lifting column 31 is compressed to its shortest length, which helps save space. When the lower shell 13 descends, the lifting column 31 extends, providing support and guidance.

[0056] Furthermore, the edge of the telescopic section 311 inserted inside is rolled outward, and the edge of the inserted end is rolled inward, preventing the telescopic section 311 from being disjointed when the lifting column 31 is in a stretched state. In order to facilitate installation and fixation, in this embodiment, the cross-sectional shape of the lifting column 31 is square, and the plane of the lifting column 31 can fit the inner wall surface of the upper shell 11 or the lower shell 13, and is fixed by bolts. Since the water tank 200 has a certain weight, in order to ensure a stable connection, the end with a larger diameter of the lifting column 31 is fixedly connected to the inner wall surface of the upper shell 11 by bolts, and the end with a smaller diameter is fixedly connected to the water tank 200 by bolts. During the lifting process of the water tank 200, the lifting column 31 plays a guiding role to prevent the upper shell 11 and the lower shell 13 from shifting in position during the lifting process, which causes the upper shell 11 to be unable to be inserted into the lower shell 13.

[0057] Combined with reference Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 as well as Figure 9 In one embodiment of the present application, the retractable structure 50 includes a rotary shaft 51 and a connecting cloth 55. Figure 2 As shown, the rotary shaft 51 is connected to the output shaft of the driving member 57. The connecting cloth 55 is connected to the rotary shaft 51 on one side and to the water tank 200 on the other side. The rotary shaft 51 is used to wind the connecting cloth 55. During the winding process, the connecting cloth 55 provides tension to the water tank 200, lifting the water tank 200. By winding the connecting cloth 55, the water tank 200 is lifted evenly throughout the lifting process, preventing tilting, and making the lifting process more stable.

[0058] Further, refer to Figure 9 As shown, a fixing hole is provided at one end of the rotating shaft 51, and the output shaft of the motor is inserted into the fixing hole and fixed with a pin. In order to facilitate the flexibility of production and processing, the output shaft of the motor and the rotating shaft 51 can also be connected by a coupling. A rotating bearing 511 is provided at the other end of the rotating shaft 51, which can, on the one hand, support the rotating shaft 51, and on the other hand, reduce the friction during rotation and improve work efficiency. The rotating bearing 511 is fixedly installed on the side wall of the upper shell 11 through a bearing seat. In order to prevent the water tank 200 from falling due to insufficient locking force of the motor after rising, a locking component can be provided at the rotating bearing 511 to assist in locking, which can not only prevent the water tank 200 from falling, but also reduce the power consumption of the motor and reduce resource waste. For example, a ratchet pawl component can be provided. The ratchet pawl component is a relatively common locking component and will not be described here. Since the wall-mounted air conditioner is relatively high, a pawl opening and closing structure can also be added to prevent the water tank 200 from being unable to fall after the pawl is locked.

[0059] Further, refer to Figure 2 and Figure 3 As shown, the connecting cloth 55 is used to provide tension when the water tank 200 is raised. In this embodiment, the connecting cloth 55 is waterproof Oxford cloth, but is not limited to waterproof Oxford cloth. The connecting cloth 55 is a cylindrical structure with three sides surrounded and one side open, with the open side facing the wall. The lifting column 31 is placed inside the connecting cloth 55 to improve the overall appearance. One side of the connecting cloth 55 is glued to the rotating shaft, and the other side is glued to the inner wall of the lower shell 13. When the water tank 200 rises, the connecting cloth 55 is wrapped around the rotating shaft 51, driving the lower shell 13 to rise, while the lifting column 31 retracts. When the water tank 200 descends, the rotating shaft 51 rotates in the opposite direction. Under the action of the gravity of the water tank 200, the connecting cloth 55 extends, and the lifting column 31 extends, thus completing the lifting process. Since one end of the connecting cloth 55 is fixed to the inner wall of the lower shell 13 by glue and is evenly distributed on the edge of the lower shell 13, when the lower shell 13 rises or falls, the force is evenly applied everywhere, and the lifting process is smoother.

[0060] In one embodiment of the present application, the retractable structure 50 further includes a rolling platform 53. Figure 7 and 9 As shown, a smoothing platform 53 is connected to the fixed structure 10 and is located between the rotating shaft 51 and the water tank 200. The connecting cloth 55 is sleeved onto the outer circumference of the smoothing platform 53. The smoothing platform 53 is used to adjust the flatness of the connecting cloth 55, ensuring a smoother winding of the connecting cloth 55 and preventing it from getting stuck. Since the connecting cloth 55 is sleeved onto the outer circumference of the smoothing platform 53, the smoothing platform 53 smoothes and flattens the connecting cloth 55 during winding, facilitating its winding.

[0061] Further, refer to Figure 7 As shown, the rolling platform 53 includes a rolling frame 531 and a fixing plate 533. The fixing plate 533 is connected to one side of the rolling frame 531, which is connected to the fixed structure 10. The connecting cloth 55 is sleeved on the outer circumference of the rolling frame 531. The fixing plate 533 is used to fix the rolling frame 531 to the upper shell 11, and the rolling frame 531 is used to adjust the flatness of the connecting cloth 55. The structural layout is reasonable and the space utilization rate is high.

[0062] Furthermore, the roll-shaped frame 531 is used to organize the connecting cloth 55 and keep the connecting cloth 55 flat so that the connecting cloth 55 can be wound on the rotating shaft 51. The fixing piece 533 is used to install and fix the roll-shaped frame 531. The fixing piece 533 and the roll-shaped frame 531 are integrally formed and can also be welded and fixed to the roll-shaped frame 531. A threaded hole is opened on the fixing piece 533, and a corresponding threaded hole is also opened on the side wall of the upper shell 11. The fixing piece 533 can be fixed to the side wall of the upper shell 11 by bolt connection, and the roll-shaped frame 531 can be fixed to the side wall of the upper shell 11. The roller frame 531 is installed and fixed on one side of the shell close to the insertion section 111. The roller frame 531 is a rectangular frame. The connecting cloth 55 is sleeved on the outer peripheral surface of the roller frame 531. When the connecting cloth 55 is wound, the connecting cloth 55 passes through the roller frame 531. Since the roller frame 531 is square in shape, the connecting cloth 55 can be kept flat after passing through the roller frame 531, so that the winding is more uniform, avoiding the connection cloth 55 being stuck in the upper shell 11 due to uneven winding, thereby damaging internal parts.

[0063] Further, refer to Figure 8 and Figure 9 As shown, the rolling platform 53 further includes a folding combing sheet 535, which is connected to the fixed structure 10 and is located between the rotating shaft 51 and the rolling frame 531. The free end of the folding combing sheet 535 abuts against the connecting cloth 55. By arranging the folding combing sheet 535 between the rotating shaft 51 and the rolling frame 531, and the free end of the folding combing sheet 535 abuts against the connecting cloth 55, when the connecting cloth 55 is wound, the folding combing sheet 535 pushes the connecting cloth 55 inward, causing the connecting cloth 55 to fold inward, so as to facilitate the winding of the connecting cloth 55 and make the connecting cloth 55 more neatly wound on the rotating shaft 51, thereby preventing the connection cloth 55 from getting stuck due to uneven winding.

[0064] Further, refer to Figure 8 As shown, the folding combing piece 535 is fixedly connected to the position between the rotating shaft 51 on the inner side wall of the upper shell 11 and the roller frame 531 by screws, and is located on the opposite side of the fixed piece 533. The width of the folding combing piece 535 in the up and down direction gradually decreases from its fixed end to the free end, and its free end forms a blade-like structure, and abuts against the connecting cloth 55 or pushes the connecting cloth 55 toward the open end. When the connecting cloth 55 is wound, it first passes through the roller frame 531. After passing through the roller frame 531, the cross-sectional shape of the connecting cloth 55 is approximately rectangular, and the three sides are relatively flat. The folding combing piece 535 folds the connecting cloth 55 inward along the middle relative to the side of the open end, which facilitates the winding of the connecting cloth 55 and makes the connecting cloth 55 more neat after winding.

[0065] The present invention also provides an air conditioner indoor unit, referring to Figure 1The air conditioner indoor unit includes an air conditioner indoor unit body 300 and the water tank lifting device 100 described above. The specific structure of the water tank lifting device 100 of the air conditioner indoor unit is similar to the above embodiment. Since the air conditioner indoor unit can adopt all the technical solutions of the above embodiment, it at least has the beneficial effects brought by the above embodiment, which will not be described in detail here.

[0066] The present invention further provides an air conditioner including the air conditioner indoor unit described above. The specific structure of the air conditioner indoor unit is similar to that of the above embodiments. Since the present air conditioner can adopt all the technical solutions of the above embodiments, it at least has the beneficial effects brought about by the above embodiments, and no further details will be given here.

[0067] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A water tank lifting device, characterized in that: include: A fixed structure, wherein a driving member is provided on the fixed structure; A guide structure, the guide structure is connected to the fixed structure, the side of the guide structure facing away from the fixed structure is used to connect to the water tank and move in the up and down direction, and the guide structure is in the shape of a quadrangular prism; as well as a retractable structure, the retractable structure being connected to the driving member, the side of the retractable structure facing away from the driving member being used to connect to the water tank and drive the water tank to move in an up and down direction; The retractable structure includes a rotating shaft and a connecting cloth, wherein the rotating shaft is connected to the output shaft of the driving member; one side of the connecting cloth is connected to the rotating shaft, and the other side is connected to the water tank; The retractable structure further includes a rolling platform, which is connected to the fixed structure and located between the rotating shaft and the water tank, and the connecting cloth is sleeved on the outer circumference of the rolling platform; The roll-shaped platform includes a roll-shaped frame and a fixing plate, wherein the fixing plate is connected to one side of the roll-shaped frame, the fixing plate is connected to the fixing structure, and the connecting cloth is sleeved on the outer peripheral surface of the roll-shaped frame.

2. A water tank lifting device according to claim 1, characterized in that: The rolling platform further includes a folding combing sheet, which is connected to the fixed structure and located between the rotating shaft and the rolling frame, and a free end of the folding combing sheet abuts against the connecting cloth.

3. A water tank lifting device according to claim 2, characterized in that: The roll-shaped frame is a rectangular frame structure; And / or, the roll-shaped frame and the fixing plate are an integrated structure; And / or, one end of the rotary shaft is provided with a fixing hole, and the output shaft of the driving member is inserted and fixed in the fixing hole; And / or, a rotary bearing is provided at one end of the rotary shaft away from the driving member, and the rotary bearing is fixed to the fixed structure; And / or, the width of the folded combing sheet in the up-down direction gradually decreases from the fixed end to the free end; And / or, the free end of the folded carding sheet is formed into a blade-like structure.

4. A water tank lifting device according to any one of claims 1 to 3, characterized in that: The fixed structure includes: an upper shell, the driving member and the guide structure being fixedly mounted on the upper shell; and The water tank is installed in the lower shell, and the guide structure is fixedly connected to the lower shell on a side away from the fixed structure.

5. A water tank lifting device according to claim 4, characterized in that: An insertion section is provided on one side of the upper shell close to the lower shell, and the insertion section is used to be inserted into the lower shell; And / or, the driving member is arranged on the outer wall surface of the upper shell, and the retractable structure is at least partially located in the upper shell and connected to the driving member; And / or, the guide structure is arranged in the upper shell.

6. A water tank lifting device according to claim 4, characterized in that: The guide structure includes a lifting column, one end of the lifting column is connected to the upper shell, and the other end of the lifting column is connected to the lower shell.

7. A water tank lifting device according to claim 6, characterized in that: The lifting column comprises a plurality of telescopic sections, and the plurality of telescopic sections are sleeve-connected in sequence.

8. An air conditioner indoor unit, characterized in that: It comprises an air-conditioning indoor unit body and a water tank lifting device as claimed in any one of claims 1 to 7, wherein the water tank lifting device is connected to the air-conditioning indoor unit body.

9. An air conditioner, characterized in that: It comprises an air-conditioning outdoor unit and an air-conditioning indoor unit as claimed in claim 8.

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