Hoisting device for large-diameter air conditioner pipeline of machine room

Abstract

The invention relates to a machine room large-diameter air conditioner pipeline hoisting device, and belongs to the field of building construction.The machine room large-diameter air conditioner pipeline hoisting device comprises a manual hydraulic forklift, a supporting piece is arranged on the manual hydraulic forklift, a winch is arranged on the side, located on the supporting piece, of the manual hydraulic forklift, and a hoisting rope is connected to the winch; a fixed pulley is wound around the end, away from the winch, of the lifting rope, the fixed pulley is connected with the supporting piece, and the end, penetrating through the fixed pulley, of the lifting rope is used for being connected with a pipeline. The pipeline hoisting device has the effect of conveniently hoisting pipelines at different positions.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to a large-diameter air-conditioning pipe hoisting device for a machine room. Background Art

[0002] In the installation of refrigeration room pipes, the role of hoisting devices is crucial. Traditional hoisting devices often use indoor overhead cranes, but the overhead crane tracks are usually fixed, which is inconvenient for lifting pipes in some hard-to-reach places.

[0003] These problems lead to the need for human participation in the actual hoisting process, low work efficiency, greater safety hazards, and more manual operations. Therefore, developing a new type of air conditioning pipe hoisting device to solve the above problems has become an urgent problem to be solved. Summary of the invention

[0004] In order to facilitate the hoisting of pipes at different positions, the present application provides a large-diameter air-conditioning pipe hoisting device for a computer room.

[0005] The present application provides a large-diameter air-conditioning pipe hoisting device for a computer room, which adopts the following technical solution: A large-diameter air-conditioning pipe lifting device for a computer room comprises a manual hydraulic forklift, a support member is provided on the manual hydraulic forklift, a winch is provided on one side of the support member, a lifting rope is connected to the winch, a fixed pulley is wound around one end of the lifting rope away from the winch, the fixed pulley is connected to the support member, and the lifting rope passes through one end of the fixed pulley for connecting the pipe.

[0006] By adopting the above technical solution, in actual use, the device is moved to a position near the required lifting pipe by a manual hydraulic forklift, and then the lifting rope is connected to the pipe, and the winch is started to tighten the lifting rope, thereby realizing the process of lifting the pipe, thereby reducing the trouble of the pipe being located in the corner and difficult to be lifted by the overhead crane.

[0007] Optionally, the support member is configured as a support rod fixedly connected to the manual hydraulic forklift, and a fixing plate is fixedly connected to one end of the support rod away from the manual hydraulic forklift.

[0008] By adopting the above technical solution and providing support rods and fixing plates, it is possible to achieve stable support for the pipeline during the process of hoisting the pipeline.

[0009] Optionally, the support member is configured as a lifting hydraulic cylinder, and the fixed pulley is connected to a piston rod of the lifting hydraulic cylinder.

[0010] By adopting the above technical solution and setting the support member as a lifting hydraulic cylinder, it is possible to achieve the effect of lifting the pipeline in rooms at different heights, thereby facilitating the process of adjusting the height of the support member due to changes in the indoor height.

[0011] Optionally, the piston rod of the lifting hydraulic cylinder is connected to a plurality of tensioning ropes for limiting the angle between the piston rod of the lifting hydraulic cylinder and the side wall of the connected manual hydraulic forklift, and one end of each tensioning rope away from the lifting hydraulic cylinder is connected to the manual hydraulic forklift.

[0012] By adopting the above technical solution and setting a tension rope, the phenomenon of the piston rod of the lifting hydraulic cylinder tilting during the process of lifting the pipeline, thereby reducing the damage to the lifting hydraulic cylinder.

[0013] Optionally, one end of each tensioning rope away from the lifting hydraulic cylinder is connected to a rope winding wheel, each rope winding wheel is connected to the manual hydraulic forklift, and a limiting component for limiting the rotation of the rope winding wheel is installed on the manual hydraulic forklift.

[0014] By adopting the above technical solution and providing a rope winding wheel and a limit assembly, it is possible to achieve the tensioning operation of the tensioning rope for different height requirements of the lifting hydraulic cylinder.

[0015] Optionally, the limiting assembly includes a limiting sleeve block located on one side of each of the rope winding wheels, and each of the limiting sleeve blocks is provided with a groove for accommodating the rope winding wheel on a side close to the rope winding wheel, and the groove wall of the groove formed by each limiting sleeve block can abut against the adjacent side wall of the rope winding wheel, and each of the limiting sleeve blocks is penetrated by and threadedly connected with a limiting screw.

[0016] By adopting the above technical solution, when it is necessary to limit the rotation of the rope winding wheel, the fiber screw is rotated, and the fiber screw drives the limiting sleeve to be sleeved on the outside of the rope winding wheel, thereby realizing the limitation of the rotation of the rope winding wheel.

[0017] Optionally, one end of each limit screw away from the adjacent rope winding wheel is arranged toward the lifting hydraulic cylinder and fixedly connected to a limit bevel gear, and a plurality of the limit bevel gears are meshed with the same driving bevel gear ring, and the driving bevel gear ring is fixedly connected to a driven bevel gear ring, one side of the driven gear ring is meshed with a driving gear, and the driving gear is fixedly connected to the driven bevel gear, one side of the driven bevel gear is meshed with a connecting bevel gear, and one side of the connecting bevel gear is meshed with a connecting rope pulley, and the lifting rope is wound around the connecting rope pulley and can drive the connecting rope pulley to rotate.

[0018] By adopting the above technical scheme, in the process of lifting the pipeline by the lifting rope, the lifting rope drives the connected connecting pulley to rotate, the connecting pulley drives the connected connecting bevel gear to rotate during the rotation process, the connecting bevel gear drives the connected driven bevel gear to rotate during the rotation process, the driven bevel gear drives the connected driving gear to rotate during the rotation process, the driving gear drives the driven gear ring to rotate during the rotation process, the driven gear ring drives the limit bevel gear to rotate during the rotation process, the limit tracking gear ring drives multiple limit bevel gears to rotate during the rotation process, each limit bevel gear drives the connected limit screw to rotate during the rotation process, thereby reducing the waste of adding a driving device to drive the limit screw to move.

[0019] Optionally, a straightening assembly is provided on a side of the support member away from the winch, and the straightening assembly is used to adjust the connected pipeline to a vertical state.

[0020] By adopting the above technical solution and setting a straightening component, the shaking of the pipeline after the pipeline is hoisted in an inclined state is reduced, thereby reducing the phenomenon that the pipeline hits the lifting hydraulic cylinder and causes damage to the lifting hydraulic cylinder or the pipeline.

[0021] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. Each of the straightening plates is connected to a limiting rod for limiting the rotation of the straightening plates.

[0022] By adopting the above technical scheme, the pipeline is placed between the two straightening plates before lifting, and then when the winch drives the lifting rope to move, the lifting rope drives the fixed pulley and the driving pulley to rotate, and the driving pulley drives the driven pulley to rotate during the rotation process, and the driven pulley drives the straightening shaft and the two connecting pulleys to rotate, and each connecting pulley drives the connected straightening pulley to rotate during the rotation process, and each straightening pulley drives the connected straightening screw to move, and each straightening screw drives the connected straightening plate to move, so that the straightening plate abuts against the pipeline, thereby realizing the straightening process of the pipeline through the straightening plate.

[0023] Optionally, a plurality of balls are installed on opposite sides of the two straightening plates.

[0024] By adopting the above technical solution and arranging the ball bearings, the phenomenon of the outer wall of the pipe being worn due to the lifting of the pipe during the process of the straightening plate abutting against the pipe is reduced.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the device on a manual hydraulic forklift, the device can be more flexible in lifting pipes at different locations; 2. By setting the lifting hydraulic cylinder, tensioning rope, rope winding wheel and limit assembly, the device can realize the lifting operation of indoor pipes at different height requirements; 3. By setting up the straightening component, the shaking of the pipeline during the lifting process due to the inclined setting of the pipeline is reduced, causing personal injury or damage to the pipeline and the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0027] Figure 2 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0028] Figure 3 It is a cross-sectional view of the connection relationship between the limit assembly and the tensioning rope of Example 2 of the present application.

[0029] Figure 4 It is a cross-sectional view of the straightening component structure of Example 2 of the present application.

[0030] Description of the accompanying drawings: 1. manual hydraulic forklift; 2. support member; 21. support rod; 22. fixed plate; 23. lifting hydraulic cylinder; 24. support plate; 3. winch; 4. lifting rope; 5. fixed pulley; 6. tension rope; 61. rope reel; 7. limit assembly; 71. limit sleeve block; 72. limit screw; 73. limit bevel gear; 74. driving bevel gear ring; 75. driven gear ring; 76. driving Gear; 761, connecting rod; 77, driven bevel gear; 78, connecting bevel gear; 79, connecting rope pulley; 8, straightening assembly; 81, straightening sleeve; 82, straightening plate; 821, ball bearing; 83, straightening screw; 84, limit rod; 85, straightening pulley; 86, connecting pulley; 861, straightening belt; 87, straightening shaft; 88, driven pulley; 89, driving pulley; 891, connecting belt. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 4This application is described in further detail.

[0032] The embodiment of the present application discloses a large-diameter air-conditioning pipe hoisting device for a computer room.

[0033] Example 1 Reference Figure 1 A large-diameter air-conditioning pipe hoisting device for a machine room includes a manual hydraulic forklift 1, a support member 2 is provided on the platform of the manual hydraulic forklift 1, and in this embodiment, the support member 2 is a vertically arranged support rod 21, and the lower end of the support rod 21 is fixedly connected to the platform of the manual hydraulic forklift 1, and the upper end of the support rod 21 is fixedly connected to a fixing plate 22. A winch 3 is provided on one side of the support rod 21, and the winch 3 is installed on the platform of the manual hydraulic forklift 1.

[0034] The hoisting machine 3 is connected with a lifting rope 4, and one end of the lifting rope 4 away from the hoisting machine 3 is wound with a fixed pulley 5, and one end of the hoisting machine 3 passing through the fixed pulley 5 is used to connect the pipeline. The fixed pulley 5 is connected to the upper end of the support member 2.

[0035] By installing the support member 2 and the winch 3 on the manual hydraulic forklift 1, the support member 2 and the winch 3 can be moved to different positions by the manual hydraulic forklift 1, so that the pipes located at different positions can be hoisted, which facilitates the staff to perform hoisting operations on pipes in corners and different positions.

[0036] The implementation principle of Example 1 is: when it is necessary to lift the pipeline, move the manual hydraulic forklift 1 to the pipeline to be lifted, then pass the lifting rope 4 through one end of the fixed pulley 5 and connect it to the pipeline, then start the winch 3, the winch 3 will tighten the lifting rope 4, so that the pipeline is lifted by the lifting rope 4, and the process of lifting the pipeline is realized.

[0037] Example 2 Reference Figure 2 , Figure 3 and Figure 4 The embodiment of the present application is different from the embodiment 1 in that the support member 2 is configured as a lifting hydraulic cylinder 23, the lifting hydraulic cylinder 23 is vertically arranged and the cylinder body is fixedly connected to the manual hydraulic forklift 1. The upper end of the piston rod of the lifting hydraulic cylinder 23 is fixedly connected to a support plate 24, the support plate 24 is vertically arranged with the lifting hydraulic cylinder 23, and the fixed pulley 5 is installed at the lower side of the support plate 24 away from the end of the lifting hydraulic cylinder 23.

[0038] The piston rod of the lifting hydraulic cylinder 23 is connected to a plurality of tension ropes 6. In this embodiment, four tension ropes 6 are provided, and the four tension ropes 6 are evenly distributed around the outer wall of the piston rod of the lifting hydraulic cylinder 23. A rope reel 61 is provided around one end of each tension rope 6 away from the lifting hydraulic cylinder 23, each rope reel 61 is connected to the platform of the manual hydraulic forklift 1, and the four rope reels 61 are evenly distributed around the cylinder body of the lifting hydraulic cylinder 23.

[0039] The four rope winding wheels 61 are connected to a limiting assembly 7 , and the limiting assembly 7 is used to limit the rotation of the rope winding wheels 61 .

[0040] During actual use, the manual hydraulic forklift 1 is moved to the side of the pipe to be lifted, the lifting hydraulic cylinder 23 is started to adjust the position of the support plate 24 and the fixed pulley 5, and the piston rod position of the lifting hydraulic cylinder 23 is limited by the tension rope 6 in cooperation with the limit assembly 7, and then the end of the lifting rope 4 away from the winch 3 is connected to the pipe to be lifted, and then the winch 3 is started to drive the pipe to move, thereby realizing the lifting process of the pipe.

[0041] By providing the lifting hydraulic cylinder 23, it is possible to realize the lifting operation of pipelines with different height requirements according to the height of the current area, so that the lifting process can be more flexible.

[0042] The limiting assembly 7 includes a plurality of limiting sleeves 71. In this embodiment, four limiting sleeves 71 are provided, and the four limiting sleeves 71 are provided one-to-one with the four rope winding wheels 61. A groove for accommodating the rope winding wheel 61 is provided on one side of each limiting sleeve 71 close to the corresponding rope winding wheel 61, and when the rope winding wheel 61 is inside the groove provided by the corresponding limiting sleeve 71, it can abut against multiple groove walls inside the groove at the same time, thereby being restricted from rotating.

[0043] Each limiting sleeve block 71 is penetrated and threadedly connected with a limiting screw 72, each limiting screw 72 is arranged horizontally, and one end of each limiting screw 72 away from the corresponding rope winding wheel 61 is arranged toward the lifting hydraulic cylinder 23. One end of each limiting screw 72 close to the lifting hydraulic cylinder 23 is fixedly connected to a limiting bevel gear 73, and the four limiting bevel gears 73 are meshed with the same driving bevel gear ring 74, and the driving bevel gear ring 74 is rotatably sleeved on the outside of the lifting hydraulic cylinder 23.

[0044] The upper side of the driving bevel gear ring 74 is fixedly connected with a driven gear ring 75, and the driven gear ring 75 is rotatably sleeved on the outside of the lifting hydraulic cylinder 23. One side of the driven gear ring 75 is meshed with a driving gear 76, and the upper side of the driving gear 76 is fixedly connected with a connecting rod 761, and the side of the connecting rod 761 away from the driving gear 76 is fixedly connected with a driven bevel gear 77, and one side of the driven bevel gear 77 is meshed with a connecting bevel gear 78, and one side of the connecting bevel gear 78 is fixedly connected with a connecting rope pulley 79, and the connecting rope pulley 79 is installed on the outer wall of the cylinder body of the lifting hydraulic cylinder 23.

[0045] The lifting rope 4 is sleeved on the connecting pulley and connected to the fixed pulley 5 through the connecting rope pulley 79.

[0046] After the lifting rope 4 is connected to the pipeline, the winch 3 is started to drive the lifting rope 4 to be tightened and the pipeline is lifted. At this time, the lifting rope 4 drives the connecting rope pulley 79 to rotate. During the rotation, the connecting rope pulley 79 drives the connected connecting bevel gear 78 to rotate. During the rotation, the connecting bevel gear 78 drives the connected driven bevel gear 77 to rotate. During the rotation, the driven bevel gear 77 drives the connected driving gear 76 to rotate.

[0047] The driving gear 76 drives the connected driven gear ring 75 to rotate during the rotation process, and the driven gear ring 75 drives the connected driving bevel gear ring 74 to rotate, and the driving bevel gear ring 74 drives the connected multiple limiting bevel gears 73 to rotate. Each limiting bevel gear 73 drives the connected limiting sleeve block 71 to move during the rotation process, and each limiting sleeve block 71 will sleeve the corresponding rope winding wheel 61 into the inside of the groove and abut against the groove wall during the movement, so that the rope winding wheel 61 is difficult to rotate, thereby realizing the limiting process of the piston rod of the lifting hydraulic cylinder 23 by multiple tensioning ropes 6.

[0048] The manual hydraulic forklift 1 is also connected to a straightening assembly 8 on the side of the lifting hydraulic cylinder 23 away from the winch 3. The straightening assembly 8 is located on the lower side of the fixed pulley 5 and is used to adjust the connected pipeline to a vertical state.

[0049] By providing the straightening assembly 8, the tilt angle between the hoisting pipe and the lifting hydraulic cylinder 23 can be adjusted, thereby making the pipe more stable during the hoisting process.

[0050] The straightening assembly 8 includes a straightening sleeve 81 fixedly connected to the manual hydraulic forklift 1. The straightening sleeve 81 has an opening on one side away from the lifting hydraulic cylinder 23, and the middle position of the opening is located directly below the fixed pulley 5. Two straightening abutment plates 82 arranged opposite to each other are arranged inside the opening, each straightening abutment plate 82 is arranged in an arc shape, and the arc-shaped grooves of the two straightening abutment plates 82 face toward each other.

[0051] The two straightening plates 82 are fixedly connected to the side away from each other with a straightening screw 83, and each straightening screw 83 is arranged horizontally. And the side wall of each straightening plate 82 connected with the straightening screw 83 is fixedly connected with a limit rod 84 arranged parallel to the straightening screw 83. Each straightening screw 83 and the limit rod 84 are inserted into the side wall of the adjacent straightening sleeve 81 and are slidably connected with the side wall of the straightening sleeve 81.

[0052] Each straightening screw 83 is threadedly sleeved with a straightening pulley 85 at the portion located inside the modulation sleeve. A connecting pulley 86 is provided on one side of each straightening pulley 85, and each straightening pulley 85 and the adjacent connecting pulley 86 are sleeved with the same straightening belt 861.

[0053] The two connecting pulleys 86 are penetrated and fixedly connected with the same straightening shaft 87, and one end of the straightening shaft 87 penetrates the side wall of the straightening sleeve 81 and is rotatably connected to the side wall of the straightening sleeve 81. One end of the straightening shaft 87 that penetrates the straightening sleeve 81 is fixedly connected with a driven pulley 88. A driving pulley 89 is fixedly connected to one side of the fixed pulley 5, and the driving pulley 89 can rotate synchronously with the fixed pulley 5. The driving pulley 89 and the driven pulley 88 are sleeved with the same connecting belt 891.

[0054] Before lifting, the pipeline is placed between two straightening sleeves 81. Then, when the winch 3 is tightening the lifting rope 4, the lifting rope 4 drives the connected fixed pulley 5 to rotate. The fixed pulley 5 drives the driving pulley 89 to rotate during the rotation. The driving pulley 89 drives the connecting belt 891 to rotate. The connecting belt 891 drives the connected driven pulley 88 to rotate during the rotation.

[0055] The driven pulley 88 drives the straightening shaft 87 to rotate, and the straightening shaft 87 drives the two connecting pulleys 86 to rotate. Each connecting pulley 86 drives the connected straightening belt 861 to rotate during the rotation process. Each straightening belt 861 drives the connected straightening pulley 85 to rotate during the rotation process. Each straightening pulley 85 drives the connected straightening screw 83 to move during the rotation process. Each straightening screw 83 drives the connected straightening sleeve 81 to move and abut against the pipeline. The two straightening sleeves 81 adjust the pipeline to a vertical state by abutting against the pipeline.

[0056] A plurality of balls 821 are installed on opposite sides of the two straightening sleeves 81 .

[0057] By providing the ball bearings 821 , after the straightening sleeve 81 abuts against the pipeline, the pipeline can move upward more smoothly.

[0058] The implementation principle of Example 2 is as follows: the device is moved to the position where the pipe is to be hoisted by moving the manual hydraulic forklift 1, and then the height of the lifting hydraulic cylinder 23 is adjusted according to the height of the pipe to be hoisted. Before hoisting, the pipe is placed between two straightening sleeves 81, and then the winch 3 is started, and the winch 3 tightens the hoisting rope 4.

[0059] During the process of tightening, the lifting rope 4 drives the limiting sleeve to be sleeved on the outside of the corresponding rope wheel 61 to fix the rope wheel 61, and then limits the position of the piston rod of the lifting hydraulic cylinder 23 by tightening the rope 6. In addition, the lifting rope 4 drives the two straightening sleeves 81 to move toward each other and abut against the pipeline, thereby adjusting the pipeline to a vertical state.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large diameter air conditioning pipe hoisting device for a machine room, characterized by: The invention comprises a manual hydraulic forklift (1), wherein a support member (2) is provided on the manual hydraulic forklift (1), a winch (3) is provided on one side of the support member (2), a lifting rope (4) is connected to the winch (3), a fixed pulley (5) is wound around one end of the lifting rope (4) away from the winch (3), the fixed pulley (5) is connected to the support member (2), and one end of the lifting rope (4) passes through the fixed pulley (5) for connecting to a pipeline.

2. The large-diameter air-conditioning pipe hoisting device for a machine room according to claim 1, characterized in that: The support member (2) is configured as a support rod (21) fixedly connected to the manual hydraulic forklift (1); one end of the support rod (21) away from the manual hydraulic forklift (1) is fixedly connected to a fixing plate (22).

3. The large-diameter air-conditioning pipe hoisting device for a machine room according to claim 1, characterized in that: The support member (2) is configured as a lifting hydraulic cylinder (23), and the fixed pulley (5) is connected to the piston rod of the lifting hydraulic cylinder (23).

4. The large-diameter air-conditioning pipe hoisting device for a machine room according to claim 3 is characterized in that: The piston rod of the lifting hydraulic cylinder (23) is connected to a plurality of tensioning ropes (6) for limiting the angle between the piston rod of the lifting hydraulic cylinder (23) and the side wall of the connected manual hydraulic forklift (1), and one end of each tensioning rope (6) away from the lifting hydraulic cylinder (23) is connected to the manual hydraulic forklift (1).

5. The large-diameter air-conditioning pipe hoisting device for a machine room according to claim 4, characterized in that: One end of each tensioning rope (6) away from the lifting hydraulic cylinder (23) is connected to a rope winding wheel (61), each rope winding wheel (61) is connected to the manual hydraulic forklift (1), and a limit assembly (7) for limiting the rotation of the rope winding wheel (61) is installed on the manual hydraulic forklift (1).

6. The large-diameter air-conditioning pipe hoisting device for a machine room according to claim 5, characterized in that: The limiting assembly (7) comprises a limiting sleeve (71) located on one side of each of the rope winding wheels (61); a groove for accommodating the rope winding wheel (61) is provided on a side of each of the limiting sleeves (71) close to the rope winding wheel (61); and the groove wall of the groove provided in each of the limiting sleeves (71) can abut against the side wall of the adjacent rope winding wheel (61); and each of the limiting sleeves (71) is penetrated by and threadedly connected with a limiting screw (72).

7. The large-diameter air-conditioning pipe hoisting device for a machine room according to claim 6, characterized in that: One end of each of the limiting screws (72) away from the adjacent rope winding wheel (61) is arranged toward the lifting hydraulic cylinder (23) and is fixedly connected to the limiting bevel gear (73); a plurality of the limiting bevel gears (73) are meshed with the same driving bevel gear ring (74); the driving bevel gear ring (74) is fixedly connected to a driven bevel gear ring (75); one side of the driven bevel gear ring (75) is meshed with a driving gear (76); the driving gear (76) is fixedly connected to a driven bevel gear (77); one side of the driven bevel gear (77) is meshed with a connecting bevel gear (78); one side of the connecting bevel gear (78) is meshed with a connecting rope pulley (79); the lifting rope (4) is wound around the connecting rope pulley (79) and can drive the connecting rope pulley (79) to rotate.

8. A large diameter air conditioning pipe hoisting device for a machine room according to any one of claims 2 or 3, characterized in that: A straightening assembly (8) is provided on a side of the support member (2) away from the hoist (3), and the straightening assembly (8) is used to adjust the connected pipeline to a vertical state.

9. The large-diameter air-conditioning pipe hoisting device for a machine room according to claim 8, characterized in that: The straightening assembly (8) comprises a straightening sleeve (81), and an opening for accommodating a pipe is provided on a side of the straightening sleeve (81) away from the support member (2), and two straightening abutment plates (82) arranged opposite to each other are provided inside the opening, and the opposite sides of the two straightening abutment plates (82) can abut against the pipe, and the opposite sides of the two straightening abutment plates (82) are fixedly connected with straightening screws (83), and one end of each straightening screw (83) away from the connected straightening abutment plate (82) is slidably plugged into the straightening screw (83). A straightening pulley (85) is threadedly sleeved inside the straightening sleeve (81), one side of each straightening pulley (85) is connected to a connecting pulley (86) via a belt, and two connecting pulleys (86) are fixedly connected to the same straightening shaft (87), one end of the straightening shaft (87) is fixedly connected to a driven pulley (88), one side of the fixed pulley (5) is fixedly connected to a driving pulley (89), and the driven pulley (88) and the driving pulley (89) are connected to the same connecting belt (891); Each of the straightening plates (82) is connected to a limiting rod (84) for limiting the rotation of the straightening plates (82).

10. The large-diameter air-conditioning pipe hoisting device for a machine room according to claim 9, characterized in that: A plurality of balls (821) are installed on opposite sides of the two straightening plates (82).

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