CN116853928A - Lifting device and air conditioning unit - Google Patents

Abstract

The application provides a lifting device and an air conditioning unit, wherein the lifting device is used for driving a fan assembly to perform lifting movement, the lifting device comprises a base and a lifting support assembly, and the base is provided with a moving opening through which a part of the fan assembly passes; the lifting support component is movably connected with the fan component, so that the lifting support component can move relative to the fan component in the vertical direction through operating the lifting support component, the lifting support component can move to a position contacting with a supporting base surface, and the fan component can be movably arranged in the vertical direction through operating the lifting support component to partially penetrate through the moving opening, so that the problems that the fan component in an air conditioning unit in the prior art is difficult to lift and difficult to support at the bottom are solved.

Description

Lifting device and air conditioning unit

Technical Field

The application relates to the technical field of centrifugal fans, in particular to a lifting device and an air conditioning unit.

Background

At present, with the great application of 4G and the gradual popularization of 5G, the heating value of various data processing equipment is larger and larger, and the requirements of a data center on the refrigerating capacity and energy conservation of air conditioning equipment are also higher and higher. In the air conditioning unit of the precise machine room with lower air supply in the prior art, a plurality of elastic mechanisms are adopted to connect the mounting plate group and the cabinet base, and the fan assembly is self-locked at a first position and a second position through the elastic force change of the elastic mechanisms; the fan assembly is driven to lift by the hoisting structure, and is driven to move up and down in a moving port of the hoisting assembly by the threaded movement of the screw connecting assembly.

However, the air conditioning unit in the structure is difficult to ensure synchronous change of a plurality of elastic mechanisms when in operation, so that the fan assembly is easy to incline and topple, and particularly when the unit encounters severe jolt in the transportation process, the expansion and contraction change of the positions of the elastic mechanisms can be caused, so that the fan assembly is inclined; moreover, the elastic mechanism adopted by the structure can also have the problem of attenuation and even failure of elastic force under long-term placement. The hoisting structure needs auxiliary operation rods to push the screw rods of the connecting parts to rotate, so that the required parts are more, and the non-cylindrical moving assembly is also required to prevent the rotated screw rods from being driven to rotate, so that the non-cylindrical moving assembly is easy to be clamped in the moving opening. In the prior art, the fixing and mounting structure of the fan assembly is a square structure for fixing a circular centrifugal fan, so that the problems of huge structure, excessive occupied cabinet space, influence on the sinking of the fan and the like exist. Meanwhile, the fixing structure and the lifting structure are two independent mechanisms, the two mechanisms are required to be fixedly connected, the number of parts is large, and the structure is complex; and the bottom of the fan assembly is not supported after sinking, the weight of the fan assembly in a suspension state is borne by the base of the cabinet, and the bearing load of the base is overlarge, so that the reliable operation of the fan assembly is not facilitated.

Disclosure of Invention

The application mainly aims to provide a lifting device and an air conditioning unit, which are used for solving the problems that a centrifugal fan in the air conditioning unit in the prior art is difficult to lift and difficult to support at the bottom.

In order to achieve the above object, according to one aspect of the present application, there is provided a lifting device for driving a blower assembly to perform a lifting motion, the lifting device including a base having a moving opening for passing a portion of the blower assembly therethrough, and a lifting support assembly; the elevating support assembly is movably connected with the blower assembly to move the elevating support assembly in a vertical direction relative to the blower assembly by operating the elevating support assembly to move the elevating support assembly to a position contacting the support base surface, and to movably arrange the blower assembly in the vertical direction by operating the elevating support assembly to partially pass through the moving opening.

Further, the fan assembly has a fixed state fixed relative to the base and a moving state moving relative to the base; when the fan assembly is in a fixed state, the fan assembly is fixedly arranged on the base; when the fan assembly is in a moving state, the lifting support assembly is in contact with the support base surface, so that the fan assembly can move up and down by operating the lifting support assembly to make relative movement between the lifting support assembly and the fan assembly.

Further, the lifting support assembly comprises a plurality of rotating rods, each rotating rod is in threaded connection with the fan assembly, and an operating part is arranged at one end of each rotating rod, so that when the fan assembly is in a fixed state, the rotating rods rotate relative to the fan assembly and descend until the rotating rods are in contact with the support base surface through the operating parts.

Further, the fan assembly comprises a plurality of fixing columns, the plurality of fixing columns are arranged in one-to-one correspondence with the plurality of rotating rods, each fixing column is provided with an external thread section, each fixing column is provided with an internal thread section in threaded fit with the corresponding rotating rod, and each rotating rod is arranged on the corresponding fixing column in a penetrating manner and in threaded fit with the corresponding fixing column, so that when the fan assembly is in a fixed state, the rotating rod is rotated to enable the rotating rod to descend until the rotating rod contacts with the supporting base surface; when the fan assembly is in a moving state, the fan assembly is moved relative to the supporting base surface and lowered to a preset position by rotating the rotating rod.

Further, the lifting device further comprises a fixing assembly, and when the fan assembly is in a fixed state, the fan assembly is installed on the base through the fixing assembly.

Further, the fixed component is detachably connected with the fan component and the base respectively, so that the fixed component is detached from the base after the fan component is switched from the fixed state to the moving state.

Further, the fixed assembly comprises a plurality of fixed plates, a plurality of fixed holes are formed in the base, the fixed holes are arranged around the movable opening, and first through holes are further formed in the fixed plates, so that the fixed plates are fixedly connected with the base through fixing pieces penetrating through the first through holes and the corresponding fixed holes.

Further, the fan assembly comprises a plurality of fixing columns which are distributed at intervals along the circumferential direction of the fan assembly, first threaded holes are further formed in each fixing plate, and each fixing column penetrates through the lower mounting plate of the fan assembly and the corresponding first threaded hole and is in threaded connection with the first threaded hole.

Further, the two ends of each fixed column are further provided with external thread sections, the two external thread sections penetrate through the upper mounting plate and the lower mounting plate of the fan assembly respectively, locking nuts are connected to the external thread sections penetrating through the upper mounting plate in a threaded mode, and the external thread sections penetrating through the lower mounting plate are in threaded fit with the first threaded holes.

Further, the lifting device further comprises a hoisting frame, and the hoisting frame comprises: the bottom ends of the upright posts are connected with the base; and at least one cross beam is arranged between any two adjacent upright posts along the circumferential direction of the base.

According to another aspect of the present application, there is provided an air conditioning unit including a blower assembly, the lifting device being the lifting device described above, the blower assembly being mounted on the lifting device.

Further, the fan assembly further comprises a centrifugal fan, an upper mounting plate, a lower mounting plate and a plurality of fixing columns, wherein the lower mounting plate is connected with the centrifugal fan, and two ends of the plurality of fixing columns are detachably connected with the upper mounting plate and the lower mounting plate respectively; the outer peripheral surface of the upper mounting plate protrudes out of the outer peripheral surface of the lower mounting plate, so that after the fan assembly descends to a preset position, the fan assembly is fixed on the base through fasteners penetrating through the fan assembly and the base.

By applying the technical scheme of the application, the lifting device comprises a base and a lifting support assembly, wherein the base is provided with a movable opening through which part of the fan assembly passes; the elevating support assembly is movably connected with the blower assembly to move the elevating support assembly in a vertical direction relative to the blower assembly by operating the elevating support assembly to move the elevating support assembly to a position contacting the support base surface, and to movably arrange the blower assembly in the vertical direction by operating the elevating support assembly to partially pass through the moving opening. The lifting support component is arranged on the fan component in a penetrating way and is movably connected with the fan component, so that when the fan component is fixedly connected with the base, the fan component moves to be in contact with the supporting base surface relative to the fan component by operating the lifting support component, at the moment, the fixed connection between the fan component and the base is relieved, and the lifting support component supports the fan component; simultaneously, the lifting support assembly is further operated to enable the fan assembly to move relative to the support base surface, a part of the fan assembly passes through the moving opening to descend to a preset position, the top of the fan assembly is in contact with the base and is fixedly connected with the base, and then lifting movement and descending of the fan assembly are completed and the fan assembly is supported. Therefore, the vertical supporting strength of the fan assembly is enhanced, the bearing load of the air conditioning unit base is reduced, the running reliability of the whole machine, particularly the centrifugal fan, is improved, and the problems that the fan assembly in the air conditioning unit in the prior art is difficult to lift and difficult to support at the bottom are solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

FIG. 1 is a schematic view of a fan assembly in a fixed state from a first perspective of an embodiment of a lifting device in accordance with the present application;

FIG. 2 illustrates a schematic structural view of a fan assembly in a first perspective of motion in accordance with an embodiment of the lift device of the present application;

FIG. 3 is a schematic view of a fan assembly in a first view of a completed lowered condition according to an embodiment of the lift device of the present application;

FIG. 4 is a schematic view of a fan assembly in a fixed second view of an embodiment of a lifting device in accordance with the present application;

FIG. 5 illustrates a schematic structural view of a fan assembly in a second perspective of motion in accordance with an embodiment of the lift device of the present application;

FIG. 6 is a schematic view of a fan assembly in a second view from a fully lowered position in accordance with an embodiment of the lift device of the present application;

FIG. 7 shows a schematic structural view of a stationary post of an embodiment of a fan assembly according to the present application;

fig. 8 shows a schematic structural view of a lifting support assembly of an embodiment of a lifting device according to the application;

fig. 9 shows a schematic structural view of a fixing plate of an embodiment of a lifting device according to the present application.

Wherein the above figures include the following reference numerals:

1. a base; 2. moving the opening; 3. a support base surface; 4. a fixing hole; 5. a lock nut; 10. a fan assembly; 11. fixing the column; 111. an internal thread segment; 112. an external thread section; 12. a centrifugal fan; 13. an upper mounting plate; 14. a lower mounting plate; 20. lifting the supporting component; 21. a rotating rod; 22. an operation unit; 30. a fixing assembly; 31. a fixing plate; 32. a first via; 33. a first threaded hole; 40. hoisting the frame; 41. a column; 42. and a cross beam.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 9, in a first aspect of the present application, there is provided a lifting device for driving a fan assembly 10 to perform lifting movement, the lifting device including a base 1 and a lifting support assembly 20, the base 1 having a moving opening 2 for passing through a portion of the fan assembly 10; the elevation support assembly 20 is movably connected with the blower assembly 10 such that the elevation support assembly 20 is moved in a vertical direction with respect to the blower assembly 10 by operating the elevation support assembly 20 to move the elevation support assembly 20 to a position contacting the support base 3, and the blower assembly 10 is movably disposed in a vertical direction to partially pass through the movement opening 2 by operating the elevation support assembly 20.

By applying the technical scheme of the embodiment, the lifting support assembly 20 is arranged on the fan assembly 10 in a penetrating manner and is movably connected with the fan assembly 10, so that when the fan assembly 10 is fixedly connected with the base 1, the lifting support assembly 20 is operated to move relative to the fan assembly 10 until the fan assembly contacts with the support base surface 3, at the moment, the fixed connection between the fan assembly 10 and the base 1 is released, and the lifting support assembly 20 supports the fan assembly 10; at the same time, the lifting support assembly 20 is further operated to move the fan assembly 10 relative to the support base surface 3, and a part of the fan assembly 10 is lowered to a predetermined position through the movement opening 2, and the top of the fan assembly 10 is in contact with the base 1 and fixedly connected with the base, so that the lifting movement and the lowering of the fan assembly 10 are completed and the fan assembly 10 is supported. In this way, the vertical supporting strength of the fan assembly 10 is enhanced, the bearing load of the air conditioning unit base 1 is reduced, the running reliability of the whole machine, particularly the centrifugal fan 12, is improved, and the problems that the fan assembly 10 in the air conditioning unit in the prior art is difficult to lift and difficult to support at the bottom are solved.

Specifically, the fan assembly 10 has a fixed state fixed relative to the base 1 and a moving state moving relative to the base 1; when the fan assembly 10 is in a fixed state, the fan assembly 10 is fixedly installed on the base 1; when the fan assembly 10 is in a moving state, the lifting support assembly 20 contacts with the support base surface 3 to enable the fan assembly 10 to perform lifting movement by operating the lifting support assembly 20 to move relatively between the lifting support assembly 20 and the fan assembly 10. The above arrangement is to fixedly connect the lower mounting plate 14 of the fan assembly 10 with the base 1 through the fixing plate 31 when the fan assembly 10 is in a fixed state; when the fan assembly 10 is in a fixed state, the fan assembly 10 is moved relative to the fan assembly 10 to be in contact with the supporting base surface 3 by operating the lifting support assembly 20, the connection between the fixed plate 31 and the base 1 is further released, the fixed plate 31 is rotated to be fully positioned in the lower mounting plate 14 of the fan assembly 10 so as not to influence the free lifting motion of the fan assembly 10 at the moving opening 2, at this time, the fan assembly 10 is freely supported on the supporting base surface 3 by the lifting support assembly 20, and further, the fan assembly 10 is vertically lowered to a preset position by operating the lifting support assembly 20, and meanwhile, the upper mounting plate 13 of the fan assembly 10 is in contact with the base 1 and is fixedly connected with the base 1 so as to complete the lifting motion of the fan assembly 10 and support the fan assembly when being lowered to the preset position.

As shown in fig. 1 to 6 and 8, the elevation support assembly 20 includes a plurality of rotation rods 21, each rotation rod 21 is screw-coupled with the blower assembly 10, and one end of each rotation rod 21 is provided with an operation part 22, so that when the blower assembly 10 is in a fixed state, the rotation rod 21 is rotated with respect to the blower assembly 10 and lowered until contacting the support base 3 by operating the operation part 22. In the above arrangement, each rotary rod 21 has an external thread section 112 which is in threaded engagement with the fan assembly 10 and an operation portion 22 which is an external hexagonal head having a diagonal length not greater than the diameter of the circumference where the root of the external thread section 112 is located; a cross groove is formed in the center of the top of the outer hexagon head of the rotating rod 21; and/or the end surface of the other end opposite to the outer hexagon head is also provided with a cross groove in the middle; to drive the external hexagonal head of the rotating rod 21 by means of a socket tool or the cross-shaped recess of the rotating rod 21 by means of a screwdriver, to rotate and lower the fan assembly 10 with respect to the fan assembly 10 until it comes into contact with the support base 3 when the fan assembly 10 is in a fixed state.

Further, the fan assembly 10 includes a plurality of fixing posts 11, the plurality of fixing posts 11 are disposed in one-to-one correspondence with the plurality of rotating rods 21, each fixing post 11 is provided with an external thread segment 112, each fixing post 11 has an internal thread segment 111 in threaded engagement with the corresponding rotating rod 21, and each rotating rod 21 is threaded on the corresponding fixing post 11 and in threaded engagement with the corresponding fixing post 11, so that when the fan assembly 10 is in a fixed state, the rotating rod 21 is rotated to lower the rotating rod 21 until contacting the support base 3; when the blower assembly 10 is in a moving state, the blower assembly 10 is moved and lowered to a predetermined position with respect to the support base 3 by rotating the rotating lever 21.

The middle of the fixing column 11 is a circular tube, the outer diameter of the circular tube is larger than the diameter of the circumference where the crests of the external thread ends at the two ends are located, and the diameter of the second through holes which are annularly and uniformly arranged on the upper mounting plate 13 of the fan assembly 10 is also larger than the diameter of the second through holes which are annularly and uniformly arranged on the upper mounting plate 13, and the length of the circular tube can just ensure the mounting requirement between the upper mounting plate 13 and the centrifugal fan 12; the circular tube is internally provided with an internal thread section 111 in threaded fit with the rotary rod 21, the fixed column 11 is symmetrically designed, and two ends of the circular tube are provided with external thread sections 112 which are respectively connected with a second through hole on the upper mounting plate 13 and a third threaded hole on the lower mounting plate 14 of the fan assembly 10; after the external thread segment 112 at one end of the fixing post 11 is fixed in the third threaded hole on the lower mounting plate 14, the external thread segment 112 at one end of the fixing post 11 is fixed in the first threaded hole 33 on the fixing plate 31 again, that is, the external thread segment 112 at one end of the fixing post 11 is sequentially connected with the lower mounting plate 14 and the fixing plate 31 of the fan assembly 10 in a threaded pair. Meanwhile, the external thread segment 112 is provided with an inner hexagon head, and the distance between opposite sides of the inner hexagon head is not smaller than the diameter of the circumference where the root of the internal thread segment 111 is positioned; so that the rotating rod 21 is rotatably connected with the internal thread sections 111 of the fixed column 11, and the external thread sections 112 at both ends of the fixed column 11 are fixedly connected with the upper mounting plate 13 and the lower mounting plate 14 of the fan assembly 10, respectively, i.e., the rotating rod 21 is movable relative to the fan assembly 10, so that when the fan assembly 10 is in a fixed state, the rotating rod 21 is rotated relative to the fan assembly 10 and descends until contacting the supporting base surface 3; so that the fan assembly 10 is moved relative to the support base 3 by rotating the rotating lever 21 up to a predetermined position when the fan assembly 10 is in a moving state, to complete the lowering movement of the fan assembly 10.

Specifically, the lifting device further includes a fixing assembly 30, and when the fan assembly 10 is in a fixed state, the fan assembly 10 is mounted on the base 1 through the fixing assembly 30. The above arrangement is such that when the fan assembly 10 is in a fixed state, the lower mounting plate 14 of the fan assembly 10 is fixedly connected to the base 1 by the fixing assembly 30, and the rotating rod 21 is rotated to move relative to the fan assembly 10 until contacting the support base 3, so as to support the fan assembly 10.

As shown in fig. 1 to 3, the fixing assembly 30 is detachably connected to the blower assembly 10 and the base 1, respectively, to detach the fixing assembly 30 from the base 1 after the blower assembly 10 is switched from the fixing state to the moving state. In the above arrangement, when the fan assembly 10 is in the fixed state, one end of the fixing assembly 30 is detachably connected with the lower mounting plate 14 of the fan assembly 10, and the other end of the fixing assembly 30 is detachably connected with the base 1; when the fan assembly 10 is switched from the fixed state to the moving state, the rotating rod 21 is rotated to move relative to the fan assembly 10 until the rotating rod contacts with the supporting base surface 3, so as to support the fan assembly 10, and meanwhile, the fixed bolts fixedly connected between the fixed assembly 30 and the base 1 are removed, so that the fixed connection between the fan assembly 10 and the base 1 is released, and the fan assembly 10 is lifted through the lifting support assembly 20.

Further, the fixing assembly 30 includes a plurality of fixing plates 31, a plurality of fixing holes 4 are provided on the base 1, the plurality of fixing holes 4 are disposed around the moving opening 2, and a first through hole 32 is further provided on each fixing plate 31, so that the fixing plate 31 is fixedly connected with the base 1 through a fixing member penetrating through the first through hole 32 and the corresponding fixing hole 4. In the above arrangement, each fixing plate 31 is provided with at least one first through hole 32, which is matched with the fixing hole 4 on the base 1 for use; the fixed plate 31 is also provided with at least one first threaded hole 33 which is matched with the external thread section 112 of the fixed column 11 to form a thread pair for use; so that the fan assembly 10 is fixed to the base 1 by a plurality of fixing plates 31. When the fan assembly 10 is in a fixed state, the first threaded hole 33 on the fixed plate 31 is detachably connected with the lower mounting plate 14 of the fan assembly 10, and the first through hole 32 of the fixed plate 31 is detachably connected with the base 1; when the fan assembly 10 is switched from the fixed state to the moving state, the rotating rod 21 is rotated to move relative to the fan assembly 10 until the rotating rod contacts with the supporting base surface 3, the fan assembly 10 is supported, meanwhile, the fixing bolt fixedly connected with the fixing hole 4 through the first through hole 32 is removed, and the rotating rod 21 is rotated downwards again, so that the fan assembly 10 drives the fixing plate 31 to slightly move upwards; further, the fixing plate 31 is rotated to be entirely located in the fan mounting plate so as not to affect the free lifting movement of the fan assembly 10 in the moving opening 2, and at this time, the fan assembly 10 is freely supported on the support base 3 by the lifting support assembly 20.

Specifically, the fan assembly 10 includes a plurality of fixing posts 11 spaced apart along a circumferential direction thereof, and each fixing plate 31 is further provided with a first screw hole 33, and each fixing post 11 passes through the lower mounting plate 14 of the fan assembly 10 and the corresponding first screw hole 33 and is screw-coupled with the first screw hole 33. The fan assembly 10 is fixedly connected with the base 1 by the external thread segments 112 at one end of the fixing posts 11 penetrating through the third threaded holes on the lower mounting plate 14 and the corresponding first threaded holes 33 on the fixing plate 31.

As shown in fig. 7, two ends of each fixing column 11 are further provided with external thread segments 112, the two external thread segments 112 respectively penetrate through the upper mounting plate 13 and the lower mounting plate 14 of the fan assembly 10, the external thread segments 112 penetrating through the upper mounting plate 13 are connected with the locking nuts 5 in a threaded manner, and the external thread segments 112 penetrating through the lower mounting plate 14 are in threaded fit with the first threaded holes 33. The external thread section 112 at one end of each fixing column 11 passes through the second through hole on the corresponding upper mounting plate 13, and is screwed into the external thread section 112 penetrating out of the upper mounting plate 13 by the lock nut 5 so as to fixedly connect the external thread sections; the external thread section 112 at the other end of each fixing column 11 passes through the corresponding third threaded hole on the lower mounting plate 14 and the corresponding first threaded hole 33 on the fixing plate 31, and the first threaded hole 33 on the fixing plate 31 is matched with the external thread section 112 penetrating out of the lower mounting plate 14, so that the fixing plate 31 is screwed into the external thread section 112 and is closely attached to the lower mounting plate 14; to achieve a fixed connection thereof.

As shown in fig. 1 to 6, the lifting device further includes a lifting frame 40, and the lifting frame 40 includes: the bottom ends of the upright posts 41 are connected with the base 1; the plurality of cross beams 42 are arranged between any two adjacent upright posts 41 along the circumferential direction of the base 1, and at least one cross beam 42 is arranged between any two adjacent upright posts 41. The above arrangement, the plurality of upright posts 41 are fixedly connected with the end face of the base 1 along the vertical direction, and each cross beam 42 is fixedly connected with two adjacent upright posts 41 respectively to form a hoisting space; the fan assembly 10 is placed in the lifting space and aligned with the moving opening 2 of the base 1 for lifting movement.

In a second aspect of the present application, an air conditioning unit is provided, including a blower assembly 10, where the lifter is the lifter, and the blower assembly 10 is mounted on the lifter.

Specifically, the fan assembly 10 further includes a centrifugal fan 12, an upper mounting plate 13, a lower mounting plate 14, and a plurality of fixing columns 11, wherein the lower mounting plate 14 is connected with the centrifugal fan 12, and two ends of the plurality of fixing columns 11 are detachably connected with the upper mounting plate 13 and the lower mounting plate 14 respectively; wherein the outer circumferential surface of the upper mounting plate 13 protrudes from the outer circumferential surface of the lower mounting plate 14 to fix the fan assembly 10 to the base 1 by fasteners penetrating the fan assembly 10 and the base 1 after the fan assembly 10 is lowered to a predetermined position. Above-mentioned setting, the water conservancy diversion circle of last mounting panel 13 for fixed state, centrifugal fan 12 pass through the motor to be fixed on lower mounting panel 14, have reasonable clearance between last mounting panel 13 and the centrifugal fan 12 to avoid the collision. When the fan assembly 10 is in a moving state and descends to a preset position, the upper mounting plate 13 of the fan assembly 10 descends to the base 1 and contacts with the base 1, meanwhile, a plurality of second through holes on the upper mounting plate 13 are arranged in one-to-one correspondence with a plurality of fixing holes 4 on the base 1, and further the fasteners sequentially penetrate through the second through holes and the fixing holes 4 to fixedly connect the upper mounting plate 13 of the fan assembly 10 with the base 1, and the lifting support assembly 20 reversely rotates to contact with the support base surface 3 again, so that the lifting support assembly 20 bears the gravity load of part of the fan assembly 10, and the bearing strength of the base 1 is reduced.

From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

the lifting device comprises a base and a lifting support assembly, wherein the base is provided with a movable opening for the part of the air supply fan assembly to pass through; the elevating support assembly is movably connected with the blower assembly to move the elevating support assembly in a vertical direction relative to the blower assembly by operating the elevating support assembly to move the elevating support assembly to a position contacting the support base surface, and to movably arrange the blower assembly in the vertical direction by operating the elevating support assembly to partially pass through the moving opening. The lifting support component is arranged on the fan component in a penetrating way and is movably connected with the fan component, so that when the lower mounting plate of the fan component is fixedly connected with the base, the lifting support component moves relative to the fan component to be in contact with the supporting base surface by rotating the lifting support component, at the moment, the fixed connection between the fixing plate and the lower mounting plate and the base is released, and the lifting support component supports the fan component; simultaneously, further rotatory lift supporting component makes the fan subassembly remove for supporting the basal plane, and the part of fan subassembly passes the removal opening and descends to predetermined position, and the last mounting panel of fan subassembly contacts and makes its fixed connection with the base, and then accomplishes the lift motion of fan subassembly and supports it when descending. Therefore, the vertical supporting strength of the fan assembly is enhanced, the bearing load of the air conditioning unit base is reduced, the running reliability of the whole machine, particularly the centrifugal fan, is improved, and the problems that the fan assembly in the air conditioning unit in the prior art is difficult to lift and difficult to support at the bottom are solved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (12)

1. A lifting device for driving a fan assembly (10) to perform lifting movement, characterized in that the lifting device comprises:

-a base (1), the base (1) having a movement opening (2) for passing through a portion of the fan assembly (10);

a lifting support assembly (20), the lifting support assembly (20) being movably connected with the fan assembly (10) to move the lifting support assembly (20) in a vertical direction relative to the fan assembly (10) by operating the lifting support assembly (20) to move the lifting support assembly (20) to a position in contact with a support base surface (3), and to movably arrange the fan assembly (10) in a vertical direction by operating the lifting support assembly (20) to partially pass through the movement opening (2).

2. Lifting device according to claim 1, characterized in that the fan assembly (10) has a fixed state fixed with respect to the base (1) and a moving state moving with respect to the base (1); when the fan assembly (10) is in the fixed state, the fan assembly (10) is fixedly arranged on the base (1); when the fan assembly (10) is in the motion state, the lifting support assembly (20) is in contact with the support base surface (3) so as to enable the fan assembly (10) to perform lifting motion by operating the lifting support assembly (20) to enable relative motion between the lifting support assembly (20) and the fan assembly (10).

3. Lifting device according to claim 2, characterized in that the lifting support assembly (20) comprises a plurality of rotating rods (21), each rotating rod (21) being in threaded connection with the fan assembly (10), one end of each rotating rod (21) being provided with an operating part (22) for rotating and lowering the rotating rod (21) relative to the fan assembly (10) by operating the operating part (22) until it is in contact with the support base surface (3) when the fan assembly (10) is in the fixed state.

4. A lifting device according to claim 3, wherein the fan assembly (10) comprises a plurality of fixing posts (11), a plurality of fixing posts (11) are arranged in a one-to-one correspondence with a plurality of rotating rods (21), an external thread section (112) is arranged on each fixing post (11), each fixing post (11) is provided with an internal thread section (111) in threaded engagement with the corresponding rotating rod (21), and each rotating rod (21) is threaded on the corresponding fixing post (11) and in threaded engagement with the corresponding fixing post (11) so that when the fan assembly (10) is in the fixing state, the rotating rod (21) is rotated to enable the rotating rod (21) to descend until contacting the supporting base surface (3); when the fan assembly (10) is in the motion state, the fan assembly (10) is moved relative to the supporting base surface (3) and lowered to a preset position by rotating the rotating rod (21).

5. Lifting device according to claim 2, characterized in that it further comprises a fixing assembly (30), by means of which fixing assembly (30) the fan assembly (10) is mounted on the base (1) when the fan assembly (10) is in the fixed state.

6. Lifting device according to claim 5, characterized in that the fixing assembly (30) is detachably connected to the fan assembly (10) and the base (1), respectively, for detaching the fixing assembly (30) from the base (1) after the fan assembly (10) is switched from the fixed state to the moving state.

7. Lifting device according to claim 5, characterized in that the fixing assembly (30) comprises a plurality of fixing plates (31), wherein a plurality of fixing holes (4) are formed in the base (1), the fixing holes (4) are arranged around the moving opening (2), and a first through hole (32) is formed in each fixing plate (31) so that the fixing plates (31) are fixedly connected with the base (1) through fixing pieces penetrating through the first through holes (32) and the corresponding fixing holes (4).

8. The lifting device according to claim 7, wherein the fan assembly (10) comprises a plurality of fixing posts (11) distributed at intervals along the circumferential direction thereof, each fixing plate (31) is further provided with a first threaded hole (33), and each fixing post (11) passes through the lower mounting plate (14) of the fan assembly (10) and the corresponding first threaded hole (33) and is in threaded connection with the first threaded hole (33).

9. Lifting device according to claim 8, characterized in that the two ends of each fixing column (11) are further provided with external thread sections (112), two external thread sections (112) respectively pass through the upper mounting plate (13) and the lower mounting plate (14) of the fan assembly (10), a locking nut (5) is connected on the external thread section (112) passing through the upper mounting plate (13) in a threaded manner, and the external thread section (112) passing through the lower mounting plate (14) is in threaded engagement with the first threaded hole (33).

10. Lifting device according to claim 1, characterized in that it further comprises a lifting frame (40), said lifting frame (40) comprising:

the bottom ends of the upright posts (41) are connected with the base (1);

and a plurality of cross beams (42), at least one cross beam (42) is arranged between any two adjacent upright posts (41) along the circumferential direction of the base (1).

11. An air conditioning unit comprising a fan assembly (10), characterized in that the lifting device is a lifting device according to any one of claims 1 to 10, the fan assembly (10) being mounted on the lifting device.

12. The air conditioning unit according to claim 11, wherein the fan assembly (10) further comprises a centrifugal fan (12), an upper mounting plate (13), a lower mounting plate (14) and a plurality of fixing posts (11), the lower mounting plate (14) is connected with the centrifugal fan (12), and two ends of the plurality of fixing posts (11) are detachably connected with the upper mounting plate (13) and the lower mounting plate (14), respectively; wherein, the outer peripheral surface of the upper mounting plate (13) protrudes out of the outer peripheral surface of the lower mounting plate (14) so as to fix the fan assembly (10) on the base (1) through fasteners penetrating through the fan assembly (10) and the base (1) after the fan assembly (10) descends to a preset position.