Lifting device and air conditioning unit

Abstract

The application provides a lifting device and an air conditioning unit, the lifting device is used for lifting operation of a fan assembly, and the lifting device comprises a lifting frame, a lifting assembly and a supporting assembly, the lifting frame has a moving opening for the fan assembly to pass through; the lifting assembly is connected with the fan assembly to lift the fan assembly on the lifting frame, the lifting assembly is movably arranged relative to the fan assembly to be movably arranged in a vertical direction relative to a supporting base surface through relative movement between the fan assembly and the lifting assembly; the supporting assembly is used for being installed at a bottom end of the fan assembly to support the fan assembly through contact with the supporting base surface when the fan assembly passes through the moving opening and drops to a predetermined position, so that the problem of difficult lifting and difficult bottom support of the fan assembly in the air conditioning unit in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of centrifugal fan technology, and more specifically, to a lifting device and an air conditioning unit. Background Technology

[0002] Currently, with the widespread application of 4G and the gradual popularization of 5G, the heat generated by various data processing devices is increasing, and data centers are placing higher demands on the cooling capacity and energy efficiency of their air conditioning equipment. In existing technologies, precision air conditioning units with downflow systems employ multiple elastic mechanisms to connect the mounting plate assembly and the cabinet base. The fan assembly is self-locked to the first and second positions by the elastic force changes of these mechanisms. A hoisting structure is also used to lift and lower the fan assembly, and the screw connection assembly's threaded movement drives the fan assembly to move up and down within the hoisting assembly's movable opening.

[0003] However, in the aforementioned structure, it is difficult to ensure that multiple elastic mechanisms change synchronously during operation, which can easily cause the fan assembly to tilt or fall over. This is especially true when the unit encounters severe bumps during transportation, which may cause the elastic mechanisms to expand or contract, leading to tilting of the fan assembly. Furthermore, the elastic mechanisms used in this structure may experience elasticity attenuation or even failure over long-term placement. The hoisting structure requires an auxiliary operating rod to drive the screw of the connecting component to rotate, requiring numerous parts. For non-cylindrical moving components, it is also necessary to prevent the rotating screw from causing rotation and potentially causing jamming within the moving opening. Existing technologies typically use a cuboid structure to fix and install circular centrifugal fans, resulting in a bulky structure, excessive cabinet space occupation, and hindering fan descent. Additionally, the fixing and lifting structures are two independent sets of mechanisms that require fixed connections, resulting in numerous parts and a complex structure. Moreover, after descent, the fan assembly lacks bottom support, and the weight of the suspended fan assembly is borne by the cabinet base, placing an excessive load on the base and hindering reliable operation of the fan assembly. Summary of the Invention

[0004] The main objective of this invention is to provide a lifting device and an air conditioning unit to solve the problems of difficulty in lifting the fan assembly and difficulty in providing bottom support in the existing air conditioning units.

[0005] To achieve the above objectives, according to one aspect of the present invention, a lifting device is provided for lifting a fan assembly. The lifting device includes: a hoisting frame having a movable opening for a portion of the fan assembly to pass through; a lifting assembly connected to the fan assembly to suspend the fan assembly on the hoisting frame, the lifting assembly and the fan assembly being movably arranged relative to each other so that the fan assembly is movably arranged vertically relative to a support base surface by the relative movement between the fan assembly and the lifting assembly; and a support assembly installed at the bottom end of the fan assembly so that when a portion of the fan assembly passes through the movable opening and descends to a predetermined position, the support assembly contacts the support base surface to support the fan assembly.

[0006] Furthermore, the support assembly has a first installation state and a second installation state on the bottom end of the wind turbine assembly; when the support assembly is in the first installation state, the support assembly is connected to the base of the hoisting frame so that the wind turbine assembly is fixedly connected to the base through the support assembly; when the support assembly is in the second installation state, the bottom end of the support assembly is positioned facing the support base surface for contact with the support base surface.

[0007] Furthermore, the support assembly includes multiple support components distributed circumferentially along the wind turbine assembly, each support component being detachably connected to the bottom end of the wind turbine assembly; when the support assembly is in a first installation state, one end of each support component is relatively fixedly connected to the bottom end of the wind turbine assembly, and the other end of each support component is relatively fixedly connected to the hoisting frame, so that the position of the wind turbine assembly is fixed relative to the hoisting frame; when the support assembly is in a second installation state, the bottom end of each support component is positioned facing the support base surface for contact with the support base surface.

[0008] Furthermore, each support component includes: a support rod, on which a slot is provided, the slot being disposed at one end of the support rod along the axial direction, so that when the support assembly is in the first installation state, a portion of the bottom mounting plate of the fan assembly is engaged in the slot, thereby connecting the support rod with the bottom mounting plate of the fan assembly.

[0009] Furthermore, the support rod is provided with a first through hole, which communicates with a slot, so that the fan assembly is fixedly connected to the support rod by a first fixing member passing through the first through hole and the bottom end of the fan assembly; and / or the support rod is provided with a second through hole, so that the base is fixedly connected to the support rod by a second fixing member passing through the second through hole and the base, so that the position of the fan assembly is fixed relative to the base; and / or when the support assembly is in the first installation state, the axis of the support rod is set horizontally; when the support assembly is in the second installation state, the axis of the support rod is set vertically.

[0010] Furthermore, the bottom mounting plate of the wind turbine assembly is provided with multiple support threaded holes, and the outer wall of each support component is provided with external threads that are compatible with the support threaded holes. Each support component is threadedly connected to a corresponding support threaded hole so that each support component is fixedly mounted relative to the bottom mounting plate.

[0011] Furthermore, each support component is provided with an operating part, so that when the support assembly is in the second installation state, the operating part can be operated to rotate each support component to pass through the bottom mounting plate.

[0012] Furthermore, the lifting assembly includes: a hanging plate for detachably connecting to the top mounting plate of the wind turbine assembly; and a motion structure including a first moving part and a second moving part, the first moving part being mounted on the lifting frame and the second moving part being connected to the hanging plate, the first moving part and the second moving part being movably connected relative to each other to realize the lifting of the wind turbine assembly.

[0013] Furthermore, both the first moving part and the second moving part extend vertically and are threaded together to raise or lower the fan assembly by rotating the fan assembly or the second moving part; and / or one end of the first moving part is provided with a fixing part, the hanging plate is provided with a lifting hole, the second moving part passes through the lifting hole and is fixedly connected to the hanging plate, and the fixing part is limited to the lifting frame to limit the first moving part on the lifting frame.

[0014] Furthermore, the hoisting frame includes: a base, a movable opening disposed on the base, and multiple fixing holes disposed on the base, the multiple fixing holes surrounding the movable opening; a support assembly including multiple support components; when the support assembly is in the first installation state, each support component is fixedly connected to the base by a second fixing component passing through each support component and the corresponding fixing hole; multiple columns, the bottom ends of the multiple columns being connected to the base; multiple crossbeams, at least one crossbeam is disposed between any two adjacent columns along the circumference of the base; and a mounting beam, the mounting beam being connected to any two oppositely disposed crossbeams, the mounting beam being provided with a third through hole, through which the lifting assembly is connected to the mounting beam.

[0015] According to another aspect of the present invention, an air conditioning unit is provided, including a fan assembly, a lifting device as described above, and the fan assembly being mounted on the lifting device.

[0016] Furthermore, the fan assembly includes a centrifugal fan, a top mounting plate, a bottom mounting plate, and multiple fixing columns. The bottom mounting plate is connected to the centrifugal fan, and the two ends of the multiple fixing columns are detachably connected to the top mounting plate and the bottom mounting plate, respectively. The outer peripheral surface of the top mounting plate protrudes from the outer peripheral surface of the bottom mounting plate, so that after the fan assembly is lowered to a predetermined position, the fan assembly is fixed to the hoisting frame by a third fixing component passing through the fan assembly and the hoisting frame.

[0017] According to the technical solution of the present invention, the lifting device includes a hoisting frame, a lifting assembly, and a support assembly. The hoisting frame has a movable opening for a portion of the fan assembly to pass through. The lifting assembly is connected to the fan assembly to hoist the fan assembly onto the hoisting frame. The lifting assembly and the fan assembly are movably arranged relative to each other so that the fan assembly can be movably arranged in the vertical direction relative to the support base surface through the relative movement between the fan assembly and the lifting assembly. The support assembly is installed at the bottom end of the fan assembly so that when a portion of the fan assembly passes through the movable opening and descends to a predetermined position, the support assembly contacts the support base surface to support the fan assembly. In the above configuration, one end of the lifting assembly is connected to the top of the hoisting frame, and the other end is connected to the top of the fan assembly, suspending the fan assembly above the movable opening. Simultaneously, the bottom of the fan assembly is connected to the hoisting frame. By rotating the fan assembly, it moves relative to the lifting assembly, allowing a portion of the fan assembly to pass through the movable opening and move up and down relative to the supporting base. When the fan assembly descends to a predetermined position, the support assembly is operated to contact the supporting base and support the fan assembly. This strengthens the vertical support of the fan assembly, reduces the load on the air conditioning unit base, and improves the operational reliability of the entire unit, especially the centrifugal fan, thereby solving the problems of difficult lifting and lowering of the fan assembly and difficult bottom support in existing air conditioning units. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 A first-view structural schematic diagram of a fan assembly in a descending state, according to an embodiment of the lifting device of the present invention;

[0020] Figure 2 A schematic diagram of the fan assembly after the fan assembly completes its descent motion, according to an embodiment of the lifting device of the present invention, is shown from the first perspective.

[0021] Figure 3A schematic diagram of the support assembly in a first installation state according to an embodiment of the lifting device of the present invention is shown;

[0022] Figure 4 A second-view structural schematic diagram of the fan assembly in a descending state, according to an embodiment of the lifting device of the present invention;

[0023] Figure 5 A second-view structural schematic diagram of the fan assembly after the descent motion is completed, according to an embodiment of the lifting device of the present invention.

[0024] Figure 6 A schematic diagram of the support assembly in a second installation state according to an embodiment of the lifting device of the present invention is shown;

[0025] Figure 7 A schematic diagram of the structure of a support component according to an embodiment of the support assembly of the present invention is shown;

[0026] Figure 8 A schematic diagram of the structure of a hanging plate according to an embodiment of the lifting assembly of the present invention is shown.

[0027] The above figures include the following reference numerals:

[0028] 1. Support base; 10. Fan assembly; 11. Centrifugal fan; 12. Top mounting plate; 13. Bottom mounting plate; 131. Support threaded hole; 14. Fixing column; 20. Lifting frame; 21. Base; 211. Movable opening; 212. Fixing hole; 22. Column; 23. Crossbeam; 24. Mounting beam; 241. Third through hole; 30. Lifting assembly; 31. First moving part; 32. Fixing part; 33. Hanging plate; 331. Lifting hole; 34. Second moving part; 40. Support assembly; 41. Supporting part; 42. Support rod; 421. Slot; 422. First through hole; 423. Second through hole; 43. Operating part. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 8As shown, in the first aspect of the present invention, a lifting device is provided for lifting a fan assembly 10. The lifting device includes a hoisting frame 20, a lifting component 30, and a support component 40. The hoisting frame 20 has a movable opening 211 for a portion of the fan assembly 10 to pass through. The lifting component 30 is connected to the fan assembly 10 to hoist the fan assembly 10 onto the hoisting frame 20. The lifting component 30 and the fan assembly 10 are movably arranged relative to each other so that the fan assembly 10 can be movably arranged in the vertical direction relative to the support base 1 through the relative movement between the fan assembly 10 and the lifting component 30. The support component 40 is installed at the bottom end of the fan assembly 10 so that when a portion of the fan assembly 10 passes through the movable opening 211 and descends to a predetermined position, the support component 40 contacts the support base 1 to support the fan assembly 10.

[0031] Applying the technical solution of this embodiment, one end of the lifting assembly 30 is connected to the top of the hoisting frame 20, and the other end of the lifting assembly 30 is connected to the top of the fan assembly 10, so as to suspend the fan assembly 10 above the movable opening 211. At the same time, the bottom end of the fan assembly 10 is connected to the hoisting frame 20. By rotating the fan assembly 10, the fan assembly 10 moves relative to the lifting assembly 30, and then part of the fan assembly 10 passes through the movable opening 211 and moves up and down relative to the supporting base 1. At the same time, when the fan assembly 10 descends to the predetermined position, the supporting assembly 40 is operated to contact the supporting base 1 and support the fan assembly 10. In this way, the vertical support strength of the fan assembly 10 is strengthened, the load-bearing load of the air conditioning unit base 21 is reduced, and the operational reliability of the whole unit, especially the centrifugal fan 11, is improved, thereby solving the problems of difficult lifting and lowering of the fan assembly 10 and difficult bottom support in the prior art air conditioning units.

[0032] Specifically, the support assembly 40 has a first installation state and a second installation state on the bottom end of the wind turbine assembly 10; when the support assembly 40 is in the first installation state, the support assembly 40 is connected to the base 21 of the hoisting frame 20 so that the wind turbine assembly 10 is fixedly connected to the base 21 through the support assembly 40; when the support assembly 40 is in the second installation state, the bottom end of the support assembly 40 is arranged facing the support base 1 for contact with the support base 1. In the above configuration, when the support component 40 is in the first installation state, one end of the support component 40 is fixedly connected to the bottom end of the fan assembly 10, and the other end of the support component 40 is fixedly connected to the base 21 of the hoisting frame 20. At the same time, the lifting component 30 hoists it onto the hoisting frame 20, so that the fan assembly 10 is fixed above the movable opening 211 by the lifting component 30 and the support component 40. When the support component 40 is in the second installation state, the support component 40 passes through the bottom end of the fan assembly 10 and faces the support base 1. So that when the lifting component 30 lowers the fan assembly 10 to the predetermined position, the support component 40 is further operated to make the support component 40 contact the support base 1 and support the fan assembly 10, so as to achieve the purpose of supporting the bottom of the fan assembly 10 after its lifting and lowering movement.

[0033] like Figure 1 and Figure 2 As shown, the support assembly 40 includes a plurality of support members 41 distributed circumferentially along the wind turbine assembly 10. Each support member 41 is detachably connected to the bottom end of the wind turbine assembly 10. When the support assembly 40 is in a first installation state, one end of each support member 41 is relatively fixedly connected to the bottom end of the wind turbine assembly 10, and the other end of each support member 41 is relatively fixedly connected to the hoisting frame 20, so that the position of the wind turbine assembly 10 is fixed relative to the hoisting frame 20. When the support assembly 40 is in a second installation state, the bottom end of each support member 41 is arranged facing the support base 1 for contact with the support base 1.

[0034] In the above configuration, each support component 41 has an operating part 43 with an external hexagonal head and a support rod 42 connected thereto and having an external thread section. The diagonal length of the external hexagonal head is not greater than the diameter of the circumference where the root of the external thread section is located. A cross groove is provided in the center of the top of the external hexagonal head. A slot 421 is provided in the center of the other end of the support rod 42 opposite to the external hexagonal head. The opening size of the slot 421 is slightly larger than the thickness of the bottom mounting plate 13 of the fan assembly 10, so that the slot 421 can be engaged with the bottom mounting plate 13 of the fan assembly 10 and form a clearance fit. When the support assembly 40 is in the first installation state, a portion of the bottom mounting plate 13 of the fan assembly 10 is engaged in the slots 421 of each support component 41. Fixing bolts are used to pass through the support components 41 and the bottom mounting plate 13 of the fan assembly 10, thus fixing the bottom mounting plate 13 of the fan assembly 10 to each support component 41. The other end of each support component 41 is fixedly connected to the base 21 of the hoisting frame 20, so that the fan assembly 10 is fixed to the base 21 of the hoisting frame 20 via the support components 41 and is in a fixed state. When the support assembly 40 is in the second installation state, each support component 41 is rotatably inserted into the bottom mounting plate 13 of the fan assembly 10. When the fan assembly 10 descends to a predetermined position, a socket tool is used to drive the hexagonal head of the operating part 43 of each support component 41, or a screwdriver is used to operate the cross slot of the operating part 43 of each support component 41, so that each support component 41 contacts the support base 1 and supports the fan assembly 10.

[0035] Specifically, each support component 41 includes a support rod 42, and the support rod 42 is provided with a slot 421. The slot 421 is provided at one end of the support rod 42 along the axial direction of the support rod 42, so that when the support assembly 40 is in the first installation state, a portion of the bottom mounting plate 13 of the fan assembly 10 is engaged in the slot 421, so that the support rod 42 is connected to the bottom mounting plate 13 of the fan assembly 10. The above arrangement is such that when the support assembly 40 is in the first installation state, a portion of the bottom mounting plate 13 of the fan assembly 10 is engaged in the slot 421 of each support component 41. By using fixing bolts passing through the support component 41 and the bottom mounting plate 13 of the fan assembly 10, the bottom mounting plate 13 of the fan assembly 10 is fixedly connected to each support component 41. The other end of each support component 41 is fixedly connected to the base 21 of the hoisting frame 20, so that the fan assembly 10 is fixed to the base 21 of the hoisting frame 20 through the support component 41 and is in a fixed state.

[0036] like Figure 7As shown, the support rod 42 is provided with a first through hole 422, which communicates with the slot 421, so that the fan assembly 10 is fixedly connected to the support rod 42 by a first fixing member passing through the first through hole 422 and the bottom end of the fan assembly 10; and / or the support rod 42 is provided with a second through hole 423, so that the base 21 is fixedly connected to the support rod 42 by a second fixing member passing through the second through hole 423 and the base 21, so that the position of the fan assembly 10 is fixed relative to the base 21; and / or when the support assembly 40 is in the first installation state, the axis of the support rod 42 is set horizontally; when the support assembly 40 is in the second installation state, the axis of the support rod 42 is set vertically. In the above configuration, the bottom mounting plate 13 of the fan assembly 10 is provided with a plurality of sixth through holes spaced apart along its circumference. When the support assembly 40 is in the first installation state, the support rod 42 is fixedly connected to the bottom mounting plate 13 of the fan assembly 10 by fixing bolts passing through the first through hole 422 and the sixth through hole; the base 21 is fixedly connected to the support rod 42 by fixing bolts passing through the second through hole 423 and the fixing hole 212 on the base 21, thereby fixing the fan assembly 10 to the base 21. In the first installation state, the axis of the support rod 42 is horizontally positioned, and the central axes of the first through hole 422 and the second through hole 423 intersect perpendicularly with the axis of the support rod 42.

[0037] Furthermore, the bottom mounting plate 13 of the fan assembly 10 is provided with a plurality of support threaded holes 131, and the outer wall of each support component 41 is provided with an external thread that is compatible with the support threaded hole 131. Each support component 41 is threadedly connected to a corresponding support threaded hole 131 so that each support component 41 is fixedly mounted relative to the bottom mounting plate 13. The above configuration is designed so that when the support assembly 40 is in the first installation state, the first and second fixing members located on each support component 41 are removed, each support component 41 is removed from the bottom mounting plate 13 of the fan assembly 10, and multiple support components 41 are arranged one-to-one with multiple support threaded holes 131 on the bottom mounting plate 13 and fixed vertically downward in each support threaded hole 131. At the same time, the external hexagonal head of each support component 41 is ensured to face upward, so that the support assembly 40 is in the second installation state. When the fan assembly 10 is lowered to the predetermined position, the operation part 43 of each support component 41 is operated to move each support component 41 relative to the support base 1 and make contact with the support base 1 to support the fan assembly 10.

[0038] Specifically, each support component 41 is provided with an operating part 43, which, when the support assembly 40 is in the second installation state, allows the support component 41 to be rotated by operating the operating part 43 to pass through the bottom mounting plate 13. This arrangement allows the operating part 43 of the support component 41 to be rotated downwards using a socket tool or screwdriver, causing the support component 41 to pass through the bottom mounting plate 13. When the fan assembly 10 descends to a predetermined position, the operating part 43 can be further rotated until the support component 41 can no longer descend, indicating that the support component 41 has contacted the bottom mounting plate 13, thus providing support for the fan assembly 10.

[0039] like Figure 1 and Figure 2 and Figure 8 As shown, in this embodiment, the lifting assembly 30 includes a hanging plate 33 and a motion structure. The hanging plate 33 is detachably connected to the top mounting plate 12 of the fan assembly 10. The motion structure includes a first motion component 31 and a second motion component 34. The first motion component 31 is mounted on the lifting frame 20, and the second motion component 34 is connected to the hanging plate 33. The first motion component 31 and the second motion component 34 are movably connected relative to each other to realize the lifting of the fan assembly 10. In the above configuration, the hanging plate 33 is a U-shaped strip with a central hanging hole 331 and symmetrical fourth and fifth through holes on the left and right sides. The second moving part 34 passes through the hanging hole 331 and is welded and fixed to the hanging plate 33. The hanging plate 33 is connected to the top mounting plate 12 of the fan assembly 10 through the fourth and fifth through holes. The mounting beam 24 is a U-shaped structure with a U-shaped groove and an upward opening. The first moving part 31 has a fixing part 32 with an external hexagonal head. After the external threaded section of the first moving part 31 passes downward through the third through hole 241 of the mounting beam 24 of the hanging frame 20, the external hexagonal head of the first moving part 31 is stuck in the U-shaped groove on the mounting beam 24 of the hanging frame 20 and cannot rotate freely. At the same time, the external threaded section of the first moving part 31 and the internal threaded section of the second moving part 34 form a threaded pair, so that the fan assembly 10 can be movably set relative to the first moving part 31. After the first installation state of the support assembly 40 is released, the second moving part 34 is rotated relative to the first moving part 31 by rotating the fan assembly 10, so as to drive the fan assembly 10 to move up and down relative to the support base 1.

[0040] In another embodiment of the present invention, a vertically upward external threaded bolt is fixedly welded on the hanging plate 33, and an internally threaded pipe with an external hexagonal head passes through and is suspended in the third through hole 241 of the mounting beam 24. The external threaded bolt and the internally threaded pipe form a threaded pair so as to be rotatably connected through the external threaded bolt and the internally threaded pipe, so that the fan assembly 10 can move up and down relative to the support base 1.

[0041] Furthermore, both the first moving part 31 and the second moving part 34 extend vertically and are threaded together, so as to raise or lower the fan assembly 10 by rotating the fan assembly 10, or the first moving part 31, or the second moving part 34; and / or one end of the first moving part 31 is provided with a fixing part 32, the hanging plate 33 is provided with a lifting hole 331, the second moving part 34 passes through the lifting hole 331 and is fixedly connected to the hanging plate 33, and the fixing part 32 is limited to the lifting frame 20 to limit the first moving part 31 on the lifting frame 20. In the above configuration, the fixing part 32 of the first moving part 31 is an external hexagonal head. The first moving part 31 passes through the third through hole 241 on the mounting beam 24. The external hexagonal head of the fixing part 32 is stuck in the U-shaped groove of the mounting beam 24 and cannot move, so that the second moving part 34 is movably set relative to the first moving part 31. Then, by rotating the fan assembly 10 or the second moving part 34, the fan assembly 10 is raised and lowered relative to the first moving part 31.

[0042] like Figures 1 to 6 As shown, the hoisting frame 20 includes a base 21, multiple columns 22, multiple crossbeams 23, and a mounting beam 24. A movable opening 211 is provided on the base 21, and the base 21 is also provided with multiple fixing holes 212, which surround the movable opening 211. The support assembly 40 includes multiple support components 41. When the support assembly 40 is in the first installation state, each support component 41 is fixedly connected to the base 21 by a second fixing component passing through each support component 41 and the corresponding fixing hole 212. The bottom ends of the multiple columns 22 are all connected to the base 21. Along the circumference of the base 21, at least one crossbeam 23 is provided between any two adjacent columns 22. The mounting beam 24 is connected to any two oppositely arranged crossbeams 23, and a third through hole 241 is provided on the mounting beam 24. The lifting assembly 30 is connected to the mounting beam 24 through the third through hole 241.

[0043] In the above configuration, the mounting beam 24 is an upward-opening U-shaped groove structure. The vertical center axis of the third through hole 241 on the mounting beam 24 is on the same vertical line as the vertical center axis of the movable opening 211 on the base 21. When the support assembly 40 is in the first installation state, the entire fan assembly 10 with the support component 41 fixed is moved into the base 21 of the hoisting frame 20 and aligned with the movable opening 211. The position is adjusted so that the second through hole 423 of the support component 41 is aligned with the fixing hole 212 on the base 21, and fixing bolts are passed through the second through hole 423 and the fixing hole 212. The fixed hole 212 fixes the support component 41 to the base 21, thus completing the fixing state of the fan assembly 10. At the same time, the first moving component 31 is passed through the third through hole 241 and the second moving component 34 on the mounting beam 24, so that the fan assembly 10 is movably set relative to the first moving component 31. At this time, the first moving component 31 is rotated downward to pass through the second moving component 34 until the fixing part 32 of the first moving component 31 is stuck in the U-shaped groove of the mounting beam 24 and cannot be rotated downward, thereby completing the fixing of the fan assembly 10 to the hoisting frame 20.

[0044] In a second aspect of the present invention, an air conditioning unit is provided, including a fan assembly 10, and a lifting device as described above, wherein the fan assembly 10 is mounted on the lifting device.

[0045] like Figure 1 and Figure 2As shown, the fan assembly 10 includes a centrifugal fan 11, a top mounting plate 12, a bottom mounting plate 13, and multiple fixing columns 14. The bottom mounting plate 13 is connected to the centrifugal fan 11, and the two ends of the multiple fixing columns 14 are detachably connected to the top mounting plate 12 and the bottom mounting plate 13, respectively. The outer peripheral surface of the top mounting plate 12 protrudes beyond the outer peripheral surface of the bottom mounting plate 13, so that after the fan assembly 10 descends to a predetermined position, it is fixed to the lifting frame 20 by a third fixing component passing through the fan assembly 10 and the lifting frame 20. In this configuration, the top mounting plate 12 is a fixed guide ring, the centrifugal fan 11 is fixed to the bottom mounting plate 13 by a motor, and there is a reasonable gap between the top mounting plate 12 and the centrifugal fan 11 to avoid collision. The fixed column 14 has external threaded sections at both ends. The centrifugal fan 11 is fixedly mounted on the bottom mounting plate 13. The bottom mounting plate 13 has multiple third threaded holes spaced apart along its circumference. The external threaded section at the lower end of the fixed column 14 passes through the corresponding third threaded hole on the bottom mounting plate 13 to fix it in place. The top mounting plate 12 of the fan assembly 10 is a guide ring. Seventh through holes are arranged spaced apart along the circumference of the guide ring. The external threaded section at the upper end of the fixed column 14 passes through the corresponding seventh through hole on the top mounting plate 12. At the same time, the fourth or fifth through hole of the hanging plate 33 passes through the end of the fixed column 14 that protrudes from the fourth threaded hole and is fixedly connected with a nut. When the fan assembly 10 descends to the predetermined position, the top mounting plate 12 of the fan assembly 10 contacts the base 21. At the same time, the fixing bolts are fixedly connected by passing them through the corresponding fixing holes 212 on the top mounting plate 12 and the base 21.

[0046] In this embodiment, the top mounting plate 12 is also provided with a plurality of sealing holes spaced apart along its circumference. At the same time, the plurality of sealing holes are aligned with a plurality of support threaded holes 131 on the bottom mounting plate 13 below. A plurality of sealing plugs are screwed into the corresponding sealing holes so that when the fan assembly 10 descends to a predetermined position, the sealing plugs on the top mounting plate 12 on the fan assembly 10 can be removed. The external hexagonal head or cross groove of the operating part 43 of the support member 41 on the bottom mounting plate 13 can be seen through the sealing holes on the top mounting plate 12. The external hexagonal head of the operating part 43 on the support member 41 can be driven by a socket tool or the cross groove on the operating part 43 of the support member 41 can be rotated downward by a screwdriver until the support member 41 can no longer move down, indicating that the support member 41 has contacted the support base surface 1 to support the fan assembly 10. Finally, the sealing plugs are re-fixed into the sealing holes on the top mounting plate 12.

[0047] In this embodiment, as Figure 2 and Figure 6As shown, when the fan assembly 10 has descended to the predetermined position and the top mounting plate 12 is fixedly connected to the base 21, the support assembly 40 is in the second installation state and supports the fan assembly 10. The external thread section of the fixing column 14 is removed from the nuts on the top mounting plate 12 and the hanging plate 33 of the fan assembly 10 so that the lifting assembly 30 is disconnected from the fan assembly 10.

[0048] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0049] The lifting device includes a hoisting frame, a lifting assembly, and a support assembly. The hoisting frame has a movable opening for a portion of the fan assembly to pass through. The lifting assembly is connected to the fan assembly to suspend the fan assembly on the hoisting frame. The lifting assembly and the fan assembly are movably arranged relative to each other, allowing the fan assembly to be vertically movable relative to a support base surface through relative movement between the fan assembly and the lifting assembly. The support assembly is installed at the bottom of the fan assembly so that when a portion of the fan assembly passes through the movable opening and descends to a predetermined position, the support assembly contacts the support base surface to support the fan assembly. In this configuration, a first moving part of the lifting assembly is connected to the mounting beam of the hoisting frame, and a second moving part of the lifting assembly is connected to the top mounting plate of the fan assembly via a hanging plate to suspend the fan assembly above the movable opening. The first and second moving parts are movably arranged relative to each other. When the support assembly is in the first installation state, the bottom mounting plate of the fan assembly is fixedly connected to the base. When the support assembly is in the second installation state, rotating the fan assembly causes it to move relative to the first moving part. This allows a portion of the fan assembly to pass through the movable opening and move up and down relative to the support base. Simultaneously, when the fan assembly descends to a predetermined position, operating the support assembly brings it into contact with the support base, providing support for the fan assembly. This strengthens the vertical support of the fan assembly, reduces the load on the air conditioning unit base, and improves the operational reliability of the entire unit, especially the centrifugal fan. This solves the problems of difficult raising and lowering of the fan assembly and difficult bottom support in existing air conditioning units.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0052] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0053] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0054] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lifting device for lifting a fan assembly (10), characterized in that, The lifting device includes: The hoisting frame (20) has a movable opening (211) for a portion of the wind turbine assembly (10) to pass through. A lifting assembly (30) is connected to the fan assembly (10) to suspend the fan assembly (10) on the lifting frame (20). The lifting assembly (30) and the fan assembly (10) are movably arranged relative to each other so that the fan assembly (10) can be movably arranged in the vertical direction relative to the supporting base (1) by the relative movement between the fan assembly (10) and the lifting assembly (30). A support assembly (40) is installed at the bottom of the fan assembly (10) so that when a portion of the fan assembly (10) passes through the movable opening (211) and descends to a predetermined position, the support assembly (40) contacts the support base (1) to support the fan assembly (10). The support assembly (40) has a first installation state and a second installation state on the bottom end of the fan assembly (10); the support assembly (40) includes a plurality of support members (41) distributed circumferentially along the fan assembly (10), each of the support members (41) being detachably connected to the bottom end of the fan assembly (10); when the support assembly (40) is in the first installation state, one end of each of the support members (41) is relatively fixedly connected to the bottom end of the fan assembly (10), and the other end of each of the support members (41) is relatively fixedly connected to the hoisting frame (20), so that the position of the fan assembly (10) is fixed relative to the hoisting frame (20); when the support assembly (40) is in the second installation state, the bottom end of each of the support members (41) is arranged facing the support base surface (1) for contact with the support base surface (1); The lifting assembly (30) includes a hanging plate (33) and a moving structure. The hanging plate (33) is detachably connected to the top mounting plate (12) of the fan assembly (10). The moving structure includes a first moving component (31) and a second moving component (34). The first moving component (31) is mounted on the lifting frame (20), and the second moving component (34) is connected to the hanging plate (33). The first moving component (31) and the second moving component (34) are movably connected relative to each other to realize the lifting of the fan assembly (10). One end of the first moving part (31) is provided with a fixing part (32), and the hoisting frame (20) includes a mounting beam (24). The mounting beam (24) is a U-shaped structure with a U-shaped groove and an upward opening. The fixing part (32) is matched with the U-shaped structure to limit the first moving part (31) on the hoisting frame (20).

2. The lifting device according to claim 1, characterized in that, Each of the aforementioned support components (41) includes: A support rod (42) is provided with a slot (421). The slot (421) is provided at one end of the support rod (42) along the axial direction of the support rod (42). When the support assembly (40) is in the first installation state, a portion of the bottom mounting plate (13) of the fan assembly (10) is engaged in the slot (421) so that the support rod (42) is connected to the bottom mounting plate (13) of the fan assembly (10).

3. The lifting device according to claim 2, characterized in that, The support rod (42) is provided with a first through hole (422), which communicates with the slot (421) so that the fan assembly (10) and the support rod (42) are fixedly connected by a first fixing member passing through the first through hole (422) and the bottom end of the fan assembly (10); and / or The support rod (42) is provided with a second through hole (423) so that the base (21) and the support rod (42) are fixedly connected by a second fastener passing through the second through hole (423) and the base (21) of the hoisting frame (20), so that the position of the fan assembly (10) is fixed relative to the base (21); and / or When the support assembly (40) is in the first installation state, the axis of the support rod (42) is set horizontally; when the support assembly (40) is in the second installation state, the axis of the support rod (42) is set vertically.

4. The lifting device according to claim 1, characterized in that, The bottom mounting plate (13) of the fan assembly (10) is provided with a plurality of support threaded holes (131), and the outer wall of each support component (41) is provided with an external thread that is compatible with the support threaded hole (131). Each support component (41) is threadedly connected to a corresponding support threaded hole (131) so that each support component (41) is fixedly set relative to the bottom mounting plate (13).

5. The lifting device according to claim 4, characterized in that, Each of the support components (41) is provided with an operating part (43) so that when the support assembly (40) is in the second installation state, the operation part (43) can be used to rotate each of the support components (41) to pass through the bottom mounting plate (13).

6. The lifting device according to claim 1, characterized in that, The first moving part (31) and the second moving part (34) both extend vertically and are threaded together to raise or lower the fan assembly (10) by rotating the fan assembly (10) or the second moving part (34); and / or The hanging plate (33) is provided with a lifting hole (331), and the second moving part (34) passes through the lifting hole (331) and is fixedly connected to the hanging plate (33).

7. The lifting device according to claim 1, characterized in that, The hoisting frame (20) includes: The base (21) has a movable opening (211) on it. The base (21) also has a plurality of fixing holes (212) around the movable opening (211). The support assembly (40) includes a plurality of support components (41). When the support assembly (40) is in the first installation state, each support component (41) is fixedly connected to the base (21) by a second fixing component passing through each support component (41) and the corresponding fixing hole (212). Multiple columns (22), the bottom ends of which are connected to the base (21); Multiple crossbeams (23) are provided along the circumference of the base (21), and at least one crossbeam (23) is provided between any two adjacent columns (22). The mounting beam (24) is connected to any two oppositely arranged crossbeams (23). The mounting beam (24) is provided with a third through hole (241). The lifting assembly (30) is connected to the mounting beam (24) through the third through hole (241).

8. An air conditioning unit, comprising a fan assembly (10), characterized in that, The lifting device is the lifting device according to any one of claims 1 to 7, and the fan assembly (10) is installed on the lifting device.

9. The air conditioning unit according to claim 8, characterized in that, The fan assembly (10) includes a centrifugal fan (11), a top mounting plate (12), a bottom mounting plate (13), and a plurality of fixing columns (14). The bottom mounting plate (13) is connected to the centrifugal fan (11), and the two ends of the plurality of fixing columns (14) are detachably connected to the top mounting plate (12) and the bottom mounting plate (13), respectively. The outer peripheral surface of the top mounting plate (12) protrudes from the outer peripheral surface of the bottom mounting plate (13) so that after the fan assembly (10) is lowered to a predetermined position, the fan assembly (10) is fixed to the hoisting frame (20) by a third fixing component passing through the fan assembly (10) and the hoisting frame (20).

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