A lifting structure, a fan and an air conditioner using the same

Abstract

The present invention discloses a lifting structure, a fan and an air conditioner using the same. The lifting structure is used to realize the lifting and sinking of the device to be lifted. The lifting structure includes a base, a fixed assembly, a connecting rod assembly and a rotating assembly. The device to be lifted is located on the base and connected to the fixed assembly. One end of the connecting rod assembly is connected to the fixed assembly, and the other end is connected to the base. One end of the rotating assembly passes through the fixed assembly, and the other end is connected to the connecting rod assembly. There is a through hole on the base. The rotating assembly rotates, and the fixed assembly is moved up and down by the connecting rod assembly, thereby driving the device to be lifted through the through hole to realize lifting and sinking. The lifting device provided by the present invention can realize the lifting and sinking of the device to be lifted. For installation spaces with smaller areas, it can be installed without unnecessary flipping, which provides convenience for installation. For heavier devices to be lifted, safety accidents caused by manual lifting are avoided, making the operation safer, more reliable and more efficient.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners and relates to a lifting structure, a fan and an air conditioner using the same. Background Art

[0002] Computer room air conditioners are a common type of air conditioning equipment that can provide a reliable operating temperature and humidity for the computer room while also purifying the air within the room. Most computer room air conditioners are downflow type. When installing a downflow type air conditioner, the fan needs to be placed horizontally at the bottom of the computer room mounting rack. Due to the need for horizontal placement and limited space on the mounting rack, the fan needs to be erected first and then rotated 90° for installation. Specifically, the fan is manually lifted vertically and inserted into the mounting rack. It is then manually rotated 90° before being installed at the bottom of the mounting rack.

[0003] The above method relies on manual installation, which is inconvenient and inefficient. In addition, the fan is heavy, which poses a safety hazard and can easily cause squeezing injuries to installation workers. Summary of the Invention

[0004] In view of this, the present invention provides a lifting structure, a fan and an air conditioner using the same, which solve the technical problems of low efficiency and potential safety hazards in traditional manual installation of fans.

[0005] In order to solve the above problems, according to one aspect of the present application, an embodiment of the present invention provides a lifting structure for realizing the lifting and sinking of the device to be lifted. The lifting structure includes a base, a fixed assembly, a connecting rod assembly and a rotating assembly. The device to be lifted is located on the base and is connected to the fixed assembly. One end of the connecting rod assembly is connected to the fixed assembly, and the other end is connected to the base. One end of the rotating assembly passes through the fixed assembly, and the other end is connected to the connecting rod assembly; there is a through hole on the base, and the rotating assembly rotates, and the fixed assembly moves up and down through the connecting rod assembly, thereby driving the device to be lifted to pass through the through hole to realize lifting and sinking.

[0006] In some embodiments, the rotating assembly includes a driving screw passing through the fixed assembly and a driven screw connected to the connecting rod assembly, the end of the driving screw has a driving gear, the circumference of the driven screw has a driven gear, and the driving gear is meshed with the driven gear.

[0007] In some embodiments, two groups of rotating assemblies are provided, and each group of rotating assemblies corresponds to two connecting rod assemblies; the driven screw is a double-headed screw, one end of the double-headed screw is connected to one of the connecting rod assemblies, and the other end of the double-headed screw is connected to the other connecting rod assembly, and one end of the double-headed screw and the other end of the double-headed screw rotate in opposite directions.

[0008] In some embodiments, the rotating assembly also includes a limit sleeve for preventing the driving gear and the driven gear from falling off, and the limit sleeve is installed at the connection between the driving screw and the driven screw; the limit sleeve has a rolling bearing inside, and the rolling bearing sleeve is arranged in the smooth section of the driving screw.

[0009] In some embodiments, a limiting groove is provided on one side of the driven gear, the driving gear is a bevel gear, and the end of the bevel gear is located in the limiting groove.

[0010] In some embodiments, the connecting rod assembly includes a first fixed block, a first connecting rod, a second fixed block, a second connecting rod and a third fixed block, the first fixed block is fixed on the fixed assembly, one end of the first connecting rod is movably connected to the first fixed block, the other end of the first connecting rod is movably connected to one end of the second fixed block, the other end of the second fixed block is movably connected to one end of the second connecting rod, the other end of the second connecting rod is movably connected to the third fixed block, and the third fixed block is arranged on the base.

[0011] In some embodiments, the second fixed block includes a fixed block body, one end of the fixed block body has a first U-shaped groove, and the other end of the first connecting rod is bolted to the first U-shaped groove; the other end of the fixed block body has a second U-shaped groove, and one end of the second connecting rod is bolted to the second U-shaped groove; the fixed block body is also provided with a first hole for the driven screw to pass through.

[0012] In some embodiments, the first fixing block and the third fixing block have the same structure, and a third U-shaped groove is formed on both the first fixing block and the third fixing block.

[0013] In some embodiments, the mating section between the first connecting rod and the first fixed block, the mating section between the first connecting rod and the second fixed block, the mating section between the second connecting rod and the second fixed block, and the mating section between the second connecting rod and the third fixed block are all flat structures; and the ends of the first connecting rod and the second connecting rod are both arc end faces.

[0014] In some embodiments, the fixing assembly includes a top plate and a side plate, which form a fixing assembly with a cavity, and the top plate has a second hole for the active screw to pass through; when the lifting device is in a sinking state, the connecting rod assembly and the driven screw are received in the cavity.

[0015] In some embodiments, the lifting structure further includes a bracket, and when the device to be lifted is in a lifted state, the bracket can fix the device to be lifted on the base.

[0016] According to another aspect of the present application, an embodiment of the present invention provides a wind turbine, which includes the above-mentioned lifting structure.

[0017] According to another aspect of the present application, an embodiment of the present invention provides an air conditioner, which includes the above-mentioned fan.

[0018] Compared with the prior art, the lifting structure of the present invention has at least the following beneficial effects:

[0019] The lifting structure provided by the present invention is used to realize the lifting and sinking of the device to be lifted. The lifting structure includes a base, a fixed assembly, a connecting rod assembly and a rotating assembly. The device to be lifted is located on the base and is connected to the fixed assembly. One end of the connecting rod assembly is connected to the fixed assembly, and the other end is connected to the base. One end of the rotating assembly passes through the fixed assembly, and the other end is connected to the connecting rod assembly; there is a through hole on the base, and the rotating assembly rotates, and the fixed assembly moves up and down through the connecting rod assembly, thereby driving the device to be lifted to pass through the through hole to realize lifting and sinking.

[0020] When the device to be lifted needs to be sunk, the rotating assembly is turned along the first direction, and the rotating assembly drives the connecting rod assembly to slowly change from the vertical direction to the horizontal direction. At the same time, the rotating assembly drives the fixed assembly to move downward. Since the fixed assembly is connected to the device to be lifted, the device to be lifted also moves downward to achieve sinking. When the device to be lifted needs to be lifted, the rotating assembly is turned along the second direction, and the rotating assembly moves upward to cause the connecting rod assembly to slowly change from the horizontal direction to the vertical direction. During the transformation process, the distance between the fixed assembly and the base slowly increases. At the same time, the fixed assembly drives the device to be lifted to move upward to achieve lifting. The first direction and the second direction are opposite directions.

[0021] It can be seen from the above process that the lifting device provided by the present invention can realize the lifting and sinking of the device to be lifted. For an installation space with a smaller area, installation can be achieved without unnecessary flipping, which provides convenience for installation; for a heavier device to be lifted, safety accidents during manual lifting are avoided, making the operation safer, more reliable and efficient.

[0022] The fan provided by the present invention is designed based on the above-mentioned lifting structure. Its beneficial effects can be found in the beneficial effects of the above-mentioned lifting structure, which will not be described in detail here.

[0023] The air conditioner provided by the present invention is designed based on the above-mentioned fan. Its beneficial effects can be found in the beneficial effects of the above-mentioned fan, which will not be described in detail here.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 is a structural schematic diagram of a lifting structure provided by an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0028] Figure 3 is a front view of a lifting structure provided by an embodiment of the present invention;

[0029] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0030] Figure 5 is a structural schematic diagram of a first fixed block in a lifting structure provided by an embodiment of the present invention;

[0031] Figure 6 is a front view of a first connecting rod in a lifting structure provided by an embodiment of the present invention;

[0032] Figure 7 is a structural schematic diagram of the second fixed block in the lifting structure provided by an embodiment of the present invention;

[0033] Figure 8 1 is a schematic structural diagram of a driven screw in a lifting structure provided by an embodiment of the present invention;

[0034] Figure 9 yes Figure 8 A partial enlarged view of point C in the middle;

[0035] Figure 10 1 is a schematic structural diagram of an active screw in a lifting structure provided by an embodiment of the present invention;

[0036] Figure 11 yes Figure 10 A partial enlarged view of point D in the middle;

[0037] Figure 12 is a side view of an active screw in a lifting structure provided by an embodiment of the present invention;

[0038] Figure 13 is a structural schematic diagram of a rotating assembly in a lifting structure provided by an embodiment of the present invention;

[0039] Figure 14 yes Figure 13A partial enlarged view of point E in the middle;

[0040] Figure 15 1 is a structural diagram of the lifting structure provided by an embodiment of the present invention, in which the device to be lifted is in a sunken state;

[0041] Figure 16 It is a structural schematic diagram of a fixed component in a lifting structure provided by an embodiment of the present invention.

[0042] in:

[0043] 1. Device to be lifted; 2. Base; 3. Fixed assembly; 4. Connecting rod assembly; 5. Rotating assembly; 6. Bracket; 11. Column; 12. Bottom plate; 13. Mounting plate; 14. Body to be lifted; 31. Top plate; 32. Side plate; 33. Second hole; 41. First fixed block; 42. First connecting rod; 43. Second fixed block; 44. Second connecting rod; 45. Third fixed block; 51. Active screw; 52. Driven screw; 53. Active gear; 54. Driven gear; 55. Limiting sleeve; 56. Rolling bearing; 57. Limiting groove; 431. Fixed block body; 432. First U-shaped groove; 433. Second U-shaped groove; 434. First hole. DETAILED DESCRIPTION

[0044] To further illustrate the technical means and effects employed by the present invention to achieve its intended objectives, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments. In the following description, different references to "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0045] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; the terms "vertical", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "horizontal", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the devices or elements referred to must have a specific direction or position, and therefore cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0047] Example 1

[0048] This embodiment provides a lifting structure, such as Figure 1-15 As shown, it is used to realize the lifting and sinking of the device to be lifted 1. The lifting structure includes a base 2, a fixed component 3, a connecting rod component 4 and a rotating component 5. The device to be lifted 1 is located on the base 2 and is connected to the fixed component 3. One end of the connecting rod component 4 is connected to the fixed component 3, and the other end is connected to the base 2. One end of the rotating component 5 passes through the fixed component 3, and the other end is connected to the connecting rod component 4; there is a through hole on the base 2, and the rotating component 5 rotates, and the fixed component 3 moves up and down through the connecting rod component 4, thereby driving the device to be lifted 1 to pass through the through hole to realize lifting and sinking.

[0049] In addition, the device to be lifted 1 includes a bottom plate 12 and a mounting plate 13 connected by a column 11 , and a body to be lifted 14 is located between the bottom plate 12 and the mounting plate 13 .

[0050] The device to be lifted 1 in this embodiment can be a fan or other heavy objects; in order to realize the lifting and sinking of the heavy object, a base plate 12 and a mounting plate 13 need to be set, and the base plate 12 and the mounting plate 13 are connected by a column 11. The base plate 12 and the mounting plate 13 are horizontally arranged up and down, and the cavity between the two is used to place the body to be lifted 14; in the specific implementation process, the fixing component 3 is fixedly connected to the mounting plate 13, and the up and down movement of the fixing component 3 can drive the up and down movement of the mounting plate 13, and since the mounting plate 13, the base plate 12, the column 11 and the body to be lifted 14 are a whole, the up and down movement of the mounting plate 13 can drive the entire device to be lifted 1 to move up and down, thereby realizing lifting and sinking.

[0051] When it is necessary to sink the device to be lifted 1, the rotating assembly 5 is twisted along the first direction, and the rotating assembly 5 drives the connecting rod assembly 4 to slowly change from the vertical direction to the horizontal direction. At the same time, the rotating assembly 5 drives the fixing assembly 3 to move downward. Since the fixing assembly 3 is connected to the device to be lifted 1, the device to be lifted 1 also moves downward to achieve sinking. Figure 15As shown; when it is necessary to lift the device 1 to be lifted, the rotating assembly 5 is twisted along the second direction, and the rotating assembly 5 moves upward so that the connecting rod assembly 4 slowly changes from the horizontal direction to the vertical direction. During the transformation, the distance between the fixed assembly 3 and the base 2 slowly increases, and at the same time, the fixed assembly 3 drives the device 1 to be lifted to move upward to achieve lifting, as shown Figure 1-4 As shown; wherein, the first direction and the second direction are two opposite directions.

[0052] It can be seen from the above process that the lifting device provided in this embodiment can realize the lifting and sinking of the lifting device 1 to be lifted. For an installation space with a smaller area, installation can be achieved without unnecessary flipping, which provides convenience for installation; for a heavier lifting device 1 to be lifted, safety accidents caused by manual lifting are avoided, making the operation safer, more reliable and efficient.

[0053] In a specific embodiment, Figure 8-13 As shown, the rotating assembly 5 includes a driving screw 51 passing through the fixed assembly 3 and a driven screw 52 connected to the connecting rod assembly 4, the end of the driving screw 51 has a driving gear 53, and the circumferential surface of the driven screw 52 has a driven gear 54, and the driving gear 53 is engaged with the driven gear 54.

[0054] Among them, the driving gear 53 is a gear set on the end face of the driving screw 51. The driving gear 53 is tapered as a whole, and the tip of the cone is located on the driven screw 52. When the driving screw 51 rotates, the driving gear 53 rotates accordingly, and the driving gear 53 engages with the driven gear 54, so that the driven gear 54 rotates, thereby causing the driven screw 52 to rotate.

[0055] In a specific embodiment, Figure 1-4 As shown, two groups of rotating assemblies 5 are provided, and each group of rotating assemblies 5 corresponds to two connecting rod assemblies 4; the driven screw 52 is a double-headed screw, one end of the double-headed screw is connected to one of the connecting rod assemblies 4, and the other end of the double-headed screw is connected to the other connecting rod assembly 4, and one end of the double-headed screw and the other end of the double-headed screw rotate in opposite directions.

[0056] Two groups of rotating assemblies 5 are provided, which are respectively located on both sides of the device to be lifted 1; and each group of rotating assemblies 5 corresponds to two groups of connecting rod assemblies 4, and the two groups of connecting rod assemblies 4 are respectively provided on both sides of the corresponding rotating assemblies 5; specifically, for one group of rotating assemblies 5, the driving gear 53 at the end of the driving screw 51 is engaged with the driven gear 54 in the middle of the driven screw 52, ​​and along the middle of the driven screw 52, ​​a left-handed thread extends on one side and a right-handed thread extends on the other side. The left-handed thread is connected to one group of connecting rod assemblies 4, and the right-handed thread is connected to the other group of connecting rod assemblies 4; after adopting the above-mentioned double-headed thread, when the device to be lifted 1 needs to sink, the left-handed thread and the right-handed thread rotate in different directions, so that the corresponding two groups of connecting rod assemblies 4 move towards each other, thereby driving the device to be lifted 1 to move downward.

[0057] In a specific embodiment, Figure 13 and Figure 14 As shown, the rotating assembly 5 also includes a limiting sleeve 55 for preventing the driving gear 53 and the driven gear 54 from falling off. The limiting sleeve 55 is installed at the connection between the driving screw 51 and the driven screw 52. The limiting sleeve 55 contains a rolling bearing 56, which is mounted on the smooth section of the driving screw 51. To facilitate installation of the limiting sleeve 55, the limiting sleeve 55 is divided into two parts. After installation, the two parts are fixed together with bolts. The limiting sleeve 55 can prevent the driving screw 51 from falling off during operation.

[0058] In a specific embodiment, Figure 9 and Figure 13 As shown, one side of the driven gear 54 has a limiting groove 57 , and the driving gear 53 is a bevel gear, with the end of the bevel gear located in the limiting groove 57 .

[0059] When the active screw 51 moves downward, it is forced to move downward, and the limiting groove 57 allows the raised portion of the active screw 51 to directly contact the limiting groove 57 for limiting position. In addition, the setting of the limiting sleeve 55 allows the active screw 51 to directly act on the driven screw 52, ​​causing the device to be lifted 1 to sink. If the limiting groove 57 is not provided on the driven gear 54, the active screw 51 cannot fully act on the driven gear 54, and the device to be lifted 1 will slip or even fall off during the sinking process.

[0060] In a specific embodiment, Figure 3As shown, the connecting rod assembly 4 includes a first fixed block 41, a first connecting rod 42, a second fixed block 43, a second connecting rod 44 and a third fixed block 45. The first fixed block 41 is fixed on the fixing assembly 3, one end of the first connecting rod 42 is movably connected to the first fixed block 41, the other end of the first connecting rod 42 is movably connected to one end of the second fixed block 43, the other end of the second fixed block 43 is movably connected to one end of the second connecting rod 44, the other end of the second connecting rod 44 is movably connected to the third fixed block 45, and the third fixed block 45 is arranged on the base 2.

[0061] That is, the first fixing block 41, the first connecting rod 42, the second fixing block 43, the second connecting rod 44, and the third fixing block 45 are connected in sequence, wherein the first fixing block 41 is fixed in the fixing assembly 3, and the third fixing block 45 is fixed on the base 2. Furthermore, in order to achieve the lifting and lowering of the device to be lifted 1, the end of the first connecting rod 42 can achieve 180° rotation between the first fixing block 41 and the second fixing block 43, and the end of the second connecting rod 44 can also achieve 180° rotation between the second fixing block 43 and the third fixing block 45.

[0062] In a specific embodiment, Figure 7 As shown, the second fixing block 43 includes a fixing block body 431, one end of the fixing block body 431 has a first U-shaped groove 432, and the other end of the first connecting rod 42 is bolted to the first U-shaped groove 432; the other end of the fixing block body 431 has a second U-shaped groove 433, and one end of the second connecting rod 44 is bolted to the second U-shaped groove 433; the fixing block body 431 is also provided with a first hole 434 for the driven screw 52 to pass through; Figure 5 As shown, the first fixing block 41 and the third fixing block 45 have the same structure, and a third U-shaped groove is formed on both the first fixing block 41 and the third fixing block 45 .

[0063] During assembly, the side walls of the first U-shaped groove 432, the second U-shaped groove 433 and the third U-shaped groove all have through holes for bolts to pass through. The connecting rod is connected to the corresponding U-shaped groove through the through holes, and the connecting rod can achieve 180° rotation in the corresponding U-shaped groove.

[0064] In a specific embodiment, Figure 6As shown, the first connecting rod 42 and the second connecting rod 44 have the same structure. The mating sections of the first connecting rod 42 and the first fixing block 41, the mating sections of the first connecting rod 42 and the second fixing block 43, the mating sections of the second connecting rod 44 and the second fixing block 43, and the mating sections of the second connecting rod 44 and the third fixing block 45 are all flat structures. The ends of the first connecting rod 42 and the second connecting rod 44 are both arcuate end surfaces. The flat arcuate end surfaces can better assemble with the corresponding U-shaped grooves, thereby achieving rotation.

[0065] In a specific embodiment, Figure 16 As shown, the fixing assembly 3 includes a top plate 31 and a side plate 32, and the top plate 31 and the side plate 32 form a fixing assembly 3 with a cavity, and the top plate 31 has a second hole 33 for the active screw 51 to pass through; when the lifting device 1 is in a sinking state, the connecting rod assembly 4 and the driven screw 52 are received in the cavity.

[0066] In a specific embodiment, the lifting structure further includes a bracket 6 . When the device to be lifted 1 is in a lifted state, the bracket 6 can fix the device to be lifted 1 on the base 2 .

[0067] In order to increase the reliability in the lifting state, a bracket 6 is added, which includes two fixing plates, each of which has a first surface connected and fixed to the base 2, and a second surface connected and fixed to the bottom plate 12; more specifically, the bracket 6 includes a first fixing plate and a second fixing plate, the first fixing plate includes at least two surfaces, one of which (the first surface) is fixed to the base 2 by screws, and the other surface (the second surface) is fixed to the front side of the bottom plate 12 by screws; the second fixing plate includes at least two surfaces, one of which (the first surface) is fixed to the base 2 by screws, and the other surface (the second surface) is fixed to the rear side of the bottom plate 12 by screws; in this way, the fixation of the device to be lifted 1 in the lifting state is achieved by the front and rear fixing plates.

[0068] In addition, in order to make the fixing plate more reliable, after one side of the first surface is vertically connected to one side of the second surface, fixing pieces are added at both ends. The fixing pieces make the connection between the first surface and the second surface more reliable.

[0069] When it is necessary to sink the device to be lifted 1, first remove the bracket 6, then turn the rotating assembly 5, after the sinking is completed, fix the mounting plate 13 to the base 2 by bolts; when it is necessary to lift the device to be lifted 1, first remove the bolts used to fix the mounting plate 13 and the base 2, then turn the rotating assembly 5 in the opposite direction, after the lifting is completed, fix the base 2 and the bottom plate 12 together by the bracket 6.

[0070] For a clearer description, the following assembly process, lifting process, and sinking process all correspond to the rotating assembly 5 and the connecting rod assembly 4 on one side, and correspond to a group of rotating assemblies 5 and the two groups of connecting rod assemblies 4 corresponding to the rotating assembly 5; for a clear expression, it is assumed that the two groups of connecting rod assemblies 4 corresponding to a group of rotating assemblies 5 are the first connecting rod assembly and the second connecting rod assembly, respectively.

[0071] The specific assembly process of the lifting structure provided in this embodiment is as follows:

[0072] Two third fixing blocks 45 are welded on one side of the base 2, and two first fixing blocks 41 are welded in the fixing assembly 3. The first connecting rod 42, the second fixing block 43 and the second connecting rod 44 of the first connecting rod assembly are installed in sequence between one of the first fixing blocks 41 and the corresponding third fixing block 45. The first connecting rod 42, the second fixing block 43 and the second connecting rod 44 of the second connecting rod assembly are installed in sequence between the other first fixing block 41 and the corresponding third fixing block 45. The middle of the second fixing block 43 has a first hole 434, and one end of the double-headed screw Passing through one of the first holes 434, the other end of the double-headed screw passes through the other first hole 434. One side of the double-headed screw is a left-handed thread, and the other side is a right-handed thread. The purpose is to facilitate the movement of the first connecting rod assembly and the second connecting rod assembly in relative directions. In the middle is an end gear (i.e., the above-mentioned driven gear 54), which is used to engage with the end gear (i.e., the above-mentioned driving screw 51) and the end gear (i.e., the above-mentioned driving gear 53). A limiting groove 57 is opened on one side of the end gear. The specific position and size should be determined according to actual conditions. The limiting groove 57 is used to limit the conical screw.

[0073] Since the first fixing block 41 is welded to the fixing assembly 3, specifically to the top plate 31 of the fixing assembly 3, the conical screw and the fixing assembly 3 can be assembled together first for ease of installation, and then the rolling bearing 56 can be matched with the conical screw. In addition, a second hole 33 needs to be opened on the top plate 31, which is mainly used to limit the conical screw. In addition, as Figure 12 As shown, a hexagonal groove is required on the upper end surface of the conical screw to facilitate the application of force on the conical screw by external tools. Finally, the limit sleeve 55 is installed at the connection between the stud screw and the conical screw to prevent the conical screw from falling off during operation. To facilitate installation, the limit sleeve 55 is divided into two parts. After installation, the two parts are fixed with bolts. At this point, the installation on one side is completed, and the installation method for the other side is the same.

[0074] For better description, it is assumed that in this embodiment, clockwise is for sinking the device to be lifted 1, and counterclockwise is for lifting the device to be lifted 1. The specific situation should be determined according to the unit;

[0075] When the lifting device 1 needs to sink, the bracket 6 is first removed from the base 2, and the active screw 51 is rotated clockwise, the active gear 53 is engaged with the driven gear 54, and the driven screw 52 is driven to rotate by the driven gear 54. During the rotation of the driven screw 52, ​​the first connecting rod assembly moves in the direction close to the second connecting rod assembly, and the second connecting rod assembly moves in the direction close to the first connecting rod assembly. Specifically, the lower end of the first connecting rod 42 of the first connecting rod assembly and the upper end of the second connecting rod 44 of the second connecting rod assembly move in the direction close to the first connecting rod assembly. As the driven screw 52 moves, the first connecting rod 42 and the second connecting rod 44 of the first connecting rod assembly are folded together, and the first connecting rod 42 and the second connecting rod 44 of the second connecting rod assembly are folded together, that is, the first connecting rod 42 and the second connecting rod 44 are parallel and are both accommodated in the cavity of the fixing assembly 3, and the mounting plate 13 coincides with the bottom plate. At this time, the lifting device 1 has completed sinking.

[0076] That is to say, when in the sinking state, in the cavity of the fixed assembly 3, one part is the first connecting rod assembly folded together, and the other part is the second connecting rod assembly folded together. Between the first connecting rod assembly and the second connecting rod assembly is the matching point of the active screw 51 and the driven screw 52, ​​and starting from the middle of the active screw 51, one end thereof passes through the first hole 434 of the first connecting rod assembly, the gap between the first connecting rod 42 and the second connecting rod 44, and the gap between the first fixed block 41 and the third fixed block 45 in sequence; the other end passes through the first hole 434 of the second connecting rod assembly, the gap between the first connecting rod 42 and the second connecting rod 44, and the gap between the first fixed block 41 and the third fixed block 45 in sequence.

[0077] Furthermore, after the device to be lifted 1 has been lowered, the rubber plug is used to plug the gap between the fixing assembly 3 and the base 2 to prevent the device to be lifted 1 from leaking air.

[0078] When the lifting device 1 needs to be lifted, first remove the rubber between the fixing assembly 3 and the base 2, and rotate the active screw 51 counterclockwise. The active screw 51 drives the driven screw 52 to rotate, so that it moves upward, and at the same time drives the lifting device 1 to move upward. Since the first fixing block 41 and the third fixing block 45 are welded to the corresponding top plate and base respectively, the second fixing block 43 can then move, and the second fixing block 43 of the first connecting rod assembly drives the lower end of the first connecting rod 42 and the upper end of the second connecting rod 44 to move in the direction away from the second connecting rod assembly. The second fixing block 43 of the second connecting rod assembly drives the lower end of the first connecting rod 42 and the upper end of the second connecting rod 44 to move in the direction away from the first connecting rod assembly. When the base 2 coincides with the bottom plate 12, the first connecting rod 42 and the second connecting rod 44 change from a horizontal state to a vertical state, and then the lifting device 1 is fixed by the bracket 6. At this time, the lifting device 1 is completed.

[0079] Example 2

[0080] This embodiment provides a fan, which includes the lifting structure of embodiment 1.

[0081] That is to say, the device to be lifted 1 in Example 1 is a fan, and the body to be lifted 14 is the fan body; this embodiment uses the lifting structure in Example 1 to change the method of lifting the fan that requires multiple people to a method where the fan can be lifted by a single person. The lifting process is simple and convenient, saving labor costs, and avoiding safety accidents caused by manpower during the lifting process, making the operation safer and more reliable.

[0082] Of course, the lifting structure in Example 1 can be used to lift other heavy objects in addition to lifting the fan assembly.

[0083] Example 3

[0084] This embodiment provides an air conditioner, which includes the fan described in Example 2.

[0085] The air conditioner provided in this embodiment applies the fan in Example 2, so it has all the beneficial effects of the lifting structure in Example 1 and the fan in Example 2.

[0086] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous technical features can be freely combined and superimposed.

[0087] The above are merely preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A lifting structure for lifting and lowering a device to be lifted, characterized in that: The lifting structure includes a base, a fixed assembly, a connecting rod assembly, and a rotating assembly. The device to be lifted is located on the base and connected to the fixed assembly. One end of the connecting rod assembly is connected to the fixed assembly, and the other end is connected to the base. One end of the rotating assembly passes through the fixed assembly, and the other end is connected to the connecting rod assembly. The base has a through hole. The rotating assembly rotates, causing the fixed assembly to move up and down through the connecting rod assembly, thereby driving the device to be lifted to pass through the through hole to achieve lifting and sinking. The rotating assembly includes a driving screw passing through the fixed assembly and a driven screw connected to the connecting rod assembly; the end of the driving screw has a driving gear, and the circumferential surface of the driven screw has a driven gear; the driving gear is meshed with the driven gear, and one side of the driven gear has a limiting groove, the driving gear is a bevel gear, and the end of the bevel gear is located in the limiting groove.

2. The lifting structure according to claim 1, characterized in that: The rotating components are arranged in two groups, and each group of the rotating components corresponds to two connecting rod components; the driven screw is a double-headed screw, one end of the double-headed screw is connected to one of the connecting rod components, and the other end of the double-headed screw is connected to the other connecting rod component, and one end of the double-headed screw and the other end of the double-headed screw rotate in opposite directions.

3. The lifting structure according to claim 1 or 2, characterized in that: The rotating assembly also includes a limiting sleeve for preventing the driving gear and the driven gear from falling off, and the limiting sleeve is installed at the connection between the driving screw and the driven screw; a rolling bearing is provided in the limiting sleeve, and the rolling bearing is sleeved on the smooth section of the driving screw.

4. The lifting structure according to claim 2, characterized in that: The connecting rod assembly includes a first fixed block, a first connecting rod, a second fixed block, a second connecting rod and a third fixed block. The first fixed block is fixed to the fixed assembly, one end of the first connecting rod is movably connected to the first fixed block, the other end of the first connecting rod is movably connected to one end of the second fixed block, the other end of the second fixed block is movably connected to one end of the second connecting rod, the other end of the second connecting rod is movably connected to the third fixed block, and the third fixed block is arranged on the base.

5. The lifting structure according to claim 4, characterized in that: The second fixing block includes a fixing block body, one end of the fixing block body has a first U-shaped groove, and the other end of the first connecting rod is bolted to the first U-shaped groove; the other end of the fixing block body has a second U-shaped groove, and one end of the second connecting rod is bolted to the second U-shaped groove; the fixing block body is also provided with a first hole for the driven screw to pass through.

6. The lifting structure according to claim 5, characterized in that: The first fixing block and the third fixing block have the same structure, and a third U-shaped groove is formed on both the first fixing block and the third fixing block.

7. The lifting structure according to claim 6, characterized in that: The end of the first connecting rod that cooperates with the first fixed block, the end of the first connecting rod that cooperates with the second fixed block, the end of the second connecting rod that cooperates with the second fixed block, and the end of the second connecting rod that cooperates with the third fixed block are all flat structures; and the ends of the flat structures are all arc end faces.

8. The lifting structure according to claim 1 or 2, characterized in that: The fixing assembly includes a top plate and side plates, which form a fixing assembly with a cavity. The top plate has a second hole for the active screw to pass through; when the device to be lifted is in a sinking state, the connecting rod assembly and the driven screw are received in the cavity.

9. The lifting structure according to claim 1 or 2, characterized in that: The lifting structure further includes a bracket, and when the device to be lifted is in a lifted state, the bracket can fix the device to be lifted on the base.

10. A fan, characterized in that: The fan comprises the lifting structure according to any one of claims 1 to 9.

11. An air conditioner, characterized in that: The air conditioner includes the fan according to claim 10.

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