Quick air pipe mounting device and using method

Abstract

The invention relates to the technical field of air pipe installation, in particular to an air pipe rapid installation device and a using method.The technical scheme includes that the air pipe rapid installation device comprises a bottom plate, a lifting assembly is installed at the top end of the bottom plate and comprises a winch, the winch is fixedly connected to the top end of the bottom plate, and a steel cable is wound around the outer wall of the winch; by arranging the adjusting assembly, the distance between the two sets of bottom plates can be adjusted according to the width of the air pipe body, by arranging the two sets of lifting assemblies and the bottom plates, the two sets of winches can be started at the same time to drive the two sets of supporting plates to move upwards, and the air pipe body can be evenly lifted upwards; and when a long air pipe needs to be installed, multiple sets of lifting assemblies and bottom plates can be arranged and arranged side by side, the one-time lifting installation length is greatly increased, and therefore the construction progress can be accelerated, and the problem that the air pipe is inconvenient to hoist is solved.

Description

Technical Field

[0001] This invention relates to the field of duct installation technology, and in particular to a quick duct installation device and its usage method. Background Technology

[0002] Air ducts are pipes used to circulate air. They are generally installed overhead on the roof of a building. At present, large venues, underground garages, and various production workshops in my country are building air duct systems on a large scale. Air duct systems mainly include air conditioning ducts, fresh air system ducts, and smoke exhaust ducts. The number of indoor air ducts installed in large buildings is relatively large.

[0003] Traditional duct installation methods involve setting up ladders at the support and hanger fixing points or erecting an operating platform below the duct installation location. Workers stand on the ladders, platforms, or lifting vehicles to work with a crane to fix the duct. A construction vehicle then lifts the duct, and workers use the lifting vehicle to fix it. The length of duct lifted at one time is limited (due to the low strength of the duct itself, each lift is generally 3 to 4 meters). Long-distance duct installation requires multiple lifting operations, which is inefficient and has high mechanical costs. Therefore, this application proposes a rapid duct installation device and its usage method. Summary of the Invention

[0004] The purpose of this invention is to address the problem of inconvenience in hoisting air ducts in the prior art, and to propose a quick air duct installation device and method of use.

[0005] In a first aspect, the present invention proposes a rapid duct installation device, comprising a base plate, a lifting assembly mounted on the top of the base plate, the lifting assembly including a winch fixedly connected to the top of the base plate, a steel cable wound around the outer wall of the winch, a hook fixedly connected to one end of the steel cable, a support rod fixedly connected to the top of the base plate, two sets of first diagonal braces fixedly connected to both sides of the support rod, the bottoms of the two sets of first diagonal braces fixedly connected to the top of the base plate, and a second diagonal brace fixedly connected to one side of the top of the base plate, the top of the second diagonal brace fixedly connected to one side of the support rod. The second diagonal rod has an opening on one side, and a first roller is rotatably connected to the inner wall of the opening. The steel cable passes through the opening and is located at the top of the first roller. The top and one side of the support rod are respectively fixed to a second roller and a third roller. The steel cable is located on the outer wall of the second roller and the third roller. A ring is fitted at the bottom of the hook, and a support plate is fixed at the bottom of the ring. The top of the support plate is provided with the air duct body. There are two sets of the base plate and the lifting assembly, which are symmetrically distributed. The top of the two sets of base plates are provided with adjustment components for adjusting the spacing.

[0006] Optionally, the adjustment assembly includes a horizontal frame, which is fixed to the top of a set of base plates. A motor is fixed to the top of the horizontal frame, and a gear is fixed to the output end of the motor. The gear is disposed on the inner wall of the horizontal frame, and a rack is slidably disposed on the inner wall of the horizontal frame. The rack meshes with one side of the gear, and one side of the rack is fixed to the top of another set of base plates. A sleeve block is fixed to one side of the horizontal frame and is fitted onto the outer wall of the rack. A side plate is fixed to the other end of the rack.

[0007] Optionally, a frame is fixedly connected to the top of one set of base plates, and a sliding rod is slidably connected to the inner wall of the frame. One end of the sliding rod is fixedly connected to the top of another set of base plates, and a stop block is fixedly connected to the other end of the sliding rod. The stop block is slidably disposed inside the frame.

[0008] Optionally, a vertical frame is fixed to one side of the support rod, and a T-shaped plate is fixed to one side of the support plate. One end of the T-shaped plate is slidably disposed on the inner wall of the vertical frame, and pulleys are rotatably connected to both ends of the T-shaped plate. The pulleys are slidably disposed on the inner wall of the vertical frame.

[0009] Optionally, the bottom of the base plate is rotatably connected to casters, and multiple sets of casters are provided, which are distributed at the corners of the bottom of the base plate.

[0010] Optionally, a bottom frame is fixedly connected to the bottom of one set of trays, a round rod is slidably connected to the inner wall of the bottom frame, a round plate is fixedly connected to one end of the round rod, the round plate is slidably disposed on the inner wall of the bottom frame, a spring is fixedly connected to one side of the round plate, the spring is sleeved on the outer wall of the round rod, one end of the spring is fixedly connected to one side of the inner wall of the bottom frame, and a fixing block is rotatably connected to the other end of the round rod, the fixing block is disposed on one side of another set of trays.

[0011] Optionally, a vertical plate is fixed to the top of the support plate. Two sets of vertical plates are provided and are symmetrically distributed on both sides of the ring. The two sets of vertical plates are located on one side of the duct body.

[0012] Optionally, a first pad is fixed to one side of the vertical plate and the first pad is attached to one side of the duct body, and a second pad is fixed to the top of the support plate and the second pad is attached to the bottom of the duct body.

[0013] Optionally, a limiting plate is fixed to the top of the base plate. Four sets of limiting plates are provided and symmetrically distributed at the top of the base plate. A counterweight is provided between the four sets of limiting plates and the counterweight is located at the top of the base plate.

[0014] Secondly, the present invention provides a method for rapid installation of air ducts, applied to the aforementioned rapid installation device for air ducts, the method comprising the following steps:

[0015] S1. Drive the motor to rotate and drive the gear to rotate according to the required width of the duct body. When the gear rotates, it will drive the rack to move. The moving rack, in conjunction with the horizontal frame, will adjust the distance between the two sets of base plates until it matches the width of the duct body.

[0016] S2. Place the duct body on top of the two sets of support plates and pull the fixing block. When the fixing block moves, it will drive the round rod and round plate to move. The round plate will squeeze the spring. When the fixing block moves to one side of the support plate, rotate the fixing block so that the fixing block, in conjunction with the spring's restoring force, is locked on one side of the support plate and, together with the vertical plate, fixes the position of the duct.

[0017] S3. Simultaneously start two sets of winches to wind up two sets of steel cables. When the steel cables are wound up, the hooks will move upward. The top ring and the support plate will move upward together through the movement of the hooks. When the two sets of support plates move upward at the same time, they can drive the two sides of the duct body to move upward together, which makes it easier to install the duct body.

[0018] S4. When it is necessary to install a long duct body, multiple rows of base plates and lifting components can be set up at the same time, and the multiple rows of base plates and lifting components can be arranged in parallel. Multiple sets of winches can be started at the same time to drive the duct body upward, which is convenient for hoisting the long duct body.

[0019] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0020] This invention, by setting an adjustment component, can adjust the spacing between the two sets of base plates according to the width of the duct body. By setting two sets of lifting components and base plates, two sets of winches can be started simultaneously to drive the two sets of support plates upward, which can evenly lift the duct body upward. When it is necessary to install a long duct, multiple sets of lifting components and base plates can be set and arranged side by side, which can significantly increase the length of one lifting and installation, thereby speeding up the construction progress and solving the problem of inconvenience in hoisting ducts. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a quick duct installation device;

[0022] Figure 2 This is a schematic cross-sectional view of a quick duct installation device.

[0023] Figure 3 for Figure 2 An enlarged structural diagram at point A;

[0024] Figure 4 A schematic diagram of the structure of the components above the base plate of a quick-installation duct device;

[0025] Figure 5A schematic diagram of the support plate and vertical frame structure of a quick duct installation device;

[0026] Figure 6 A schematic diagram of the cross-sectional structure of the horizontal frame and the sleeve frame of a quick duct installation device;

[0027] Figure 7 A schematic diagram of the cross-sectional structure of the bottom frame of a quick-installation duct device;

[0028] Figure 8 This is a schematic diagram of a structure in which multiple lifting components and a base plate are arranged in parallel for a quick duct installation device.

[0029] Reference numerals: 1. Base plate; 2. First diagonal bar; 3. Second diagonal bar; 4. Support rod; 5. Winch; 6. Steel cable; 7. Through-hole; 8. First roller; 9. Second roller; 10. Third roller; 11. Hook; 12. Ring; 13. Support plate; 14. Duct body; 15. Horizontal frame; 16. Motor; 17. Gear; 18. Rack; 19. Side plate; 20. Sleeve block; 21. Sleeve frame; 22. Slide rod; 23. Stop block; 24. Vertical frame; 25. T-shaped plate; 26. Pulley; 27. Base frame; 28. Round rod; 29. ​​Round plate; 30. Spring; 31. Fixing block; 32. Vertical plate; 33. First pad; 34. Second pad; 35. Limiting plate; 36. Counterweight block; 37. Caster wheel. Detailed Implementation

[0030] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8As shown, the present invention proposes a rapid duct installation device, comprising a base plate 1, a lifting assembly mounted on the top of the base plate 1, the lifting assembly including a winch 5, the winch 5 being fixedly connected to the top of the base plate 1, a steel cable 6 wound around the outer wall of the winch 5, a hook 11 fixedly connected to one end of the steel cable 6, a support rod 4 fixedly connected to the top of the base plate 1, two sets of first diagonal rods 2 fixedly connected to both sides of the support rod 4, the bottoms of the two sets of first diagonal rods 2 being fixedly connected to the top of the base plate 1, and a second diagonal rod 3 fixedly connected to one side of the top of the base plate 1. The top end of the second diagonal rod 3 is fixed to one side of the support rod 4. A through-hole 7 is provided on one side of the second diagonal rod 3. A first roller 8 is rotatably connected to the inner wall of the through-hole 7. The steel cable 6 passes through the through-hole 7 and is located at the top end of the first roller 8. A second roller 9 and a third roller 10 are fixed to the top end and one side of the support rod 4, respectively. The steel cable 6 is located on the outer wall of the second roller 9 and the third roller 10. A ring 12 is fitted at the bottom of the hook 11. A support plate 13 is fixed to the bottom of the ring 12. An air duct is provided at the top end of the support plate 13. When the duct body 14 needs to be installed, it can be placed on top of two sets of support plates 13. The base plate 1 and lifting assembly are both provided in two sets, symmetrically distributed, allowing simultaneous activation of two sets of winches 5 to wind the steel cable 6 onto them. During winding, the steel cable 6 is supported by the first roller 8, the second roller 9, and the third roller 10, ensuring smooth sliding. When both sets of steel cables 6 are wound, they will cause the two sets of hooks 11 to move upwards together. As the hooks 11 move... The ring 12 and the support plate 13 will be pulled upward together. When the two sets of support plates 13 move upward, they can lift both sides of the duct body 14 upward at the same time, which is conducive to the smooth movement of the duct body 14. By setting the first diagonal bar 2 and the second diagonal bar 3 at the top of the base plate 1, the stability of the support rod 4 and the base plate 1 can be improved. When it is necessary to install a long duct, multiple rows of base plates 1 and lifting components can be set. By operating multiple sets of winches 5 at the same time, the long duct body 14 or multiple sets of duct bodies 14 can be lifted at the same time, which can improve the installation efficiency of the duct.

[0032] like Figure 1 and Figure 6As shown, the top ends of the two sets of base plates 1 are provided with adjustment components for adjusting the spacing. Each adjustment component includes a horizontal frame 15, which is fixedly connected to the top end of one set of base plates 1. A motor 16 is fixedly connected to the top end of the horizontal frame 15, and a gear 17 is fixedly connected to the output end of the motor 16. When it is necessary to adjust the spacing between the two sets of base plates 1, the motor 16 can be started, causing the gear 17 to rotate. The gear 17 is located on the inner wall of the horizontal frame 15, and a rack 18 is slidably arranged on the inner wall of the horizontal frame 15. The rack 18 meshes with one side of the gear 17. Because the gear 17 meshes with one side of the rack 18, the rotation of the gear 17 will drive the rack 18 to move. One side of the rack 18 is fixedly connected to the other... At the top of a set of base plates 1, since the horizontal frame 15 is installed on one set of base plates 1 and the rack 18 is installed on another set of base plates 1, when the rack 18 moves to one side, it will adjust the distance between the two sets of base plates 1 until it matches the width of the duct body 14 to be installed, thereby stopping the rotation of the motor 16. A sleeve block 20 is fixedly connected to one side of the horizontal frame 15. The sleeve block 20 is fitted onto the outer wall of the rack 18. A side plate 19 is fixedly connected to the other end of the rack 18. The side plate 19 can prevent the rack 18 from moving out of the horizontal frame 15, making it easy to place the duct body 14 to be installed on the top of the two sets of support plates 13, and to drive the duct body 14 upward by moving the support plates 13 upward, which facilitates the installation of the duct body 14.

[0033] like Figure 2 and Figure 6 As shown, a frame 21 is fixedly connected to the top of one set of base plates 1. A sliding rod 22 is slidably connected to the inner wall of the frame 21. One end of the sliding rod 22 is fixedly connected to the top of another set of base plates 1. When the distance between the two sets of base plates 1 is adjusted, the sliding rod 22 will slide inside the frame 21, thereby cooperating with the adjustment of the rack 18 and the cross frame 15 to guide the other side of the two sets of base plates 1 together, so that the two sides of the two sets of base plates 1 can move synchronously when the distance is adjusted. A stop block 23 is fixedly connected to the other end of the sliding rod 22. The stop block 23 is slidably disposed inside the frame 21 and can prevent the sliding rod 22 from falling out of the frame 21.

[0034] like Figure 3 and Figure 5As shown, a vertical frame 24 is fixed to one side of the support rod 4, and a T-shaped plate 25 is fixed to one side of the support plate 13. One end of the T-shaped plate 25 is slidably disposed on the inner wall of the vertical frame 24. When the support plate 13 moves, it will drive the T-shaped plate 25 to move together. Since the T-shaped plate 25 is disposed inside the vertical frame 24, the cooperation between the T-shaped plate 25 and the vertical frame 24 can limit the up and down movement of the support plate 13, preventing the support plate 13 from shifting when pulled by the hook 11 and the ring 12. The two ends of the T-shaped plate 25 are rotatably connected to pulleys 26. The pulleys 26 are slidably disposed on the inner wall of the vertical frame 24. By setting pulleys 26 on both sides of the T-shaped plate 25, the pulleys 26 can slide inside the vertical frame 24 when the T-shaped plate 25 moves, thereby improving the smoothness of the movement of the T-shaped plate 25.

[0035] like Figure 4 As shown, the bottom of the base plate 1 is rotatably connected to casters 37. Multiple sets of casters 37 are provided and distributed at the corners of the bottom of the base plate 1. By providing multiple sets of casters 37 at the bottom of the base plate 1, it is convenient to move the base plate 1 by the casters 37 when adjusting the distance between the two sets of base plates 1, so as to facilitate the adjustment of the distance. At the same time, the casters 37 can also facilitate the transportation of the base plate 1 to the position where the duct body 14 needs to be installed.

[0036] like Figure 7 As shown, a bottom frame 27 is fixedly connected to the bottom of a set of trays 13. A round rod 28 is slidably connected to the inner wall of the bottom frame 27. A round plate 29 is fixedly connected to one end of the round rod 28. The round plate 29 is slidably disposed on the inner wall of the bottom frame 27. A spring 30 is fixedly connected to one side of the round plate 29. The spring 30 is sleeved on the outer wall of the round rod 28. One end of the spring 30 is fixedly connected to one side of the inner wall of the bottom frame 27. A fixing block 31 is rotatably connected to the other end of the round rod 28. The fixing block 31 is disposed on one side of another set of trays 13. By setting a bottom frame 27 at the bottom of a set of trays 13, when... After the duct body 14 is placed on top of the support plate 13, the fixing block 31 can be pulled to one side. When the fixing block 31 moves, it will drive the round rod 28 and the round plate 29 to move together. When the round plate 29 moves, it will squeeze the spring 30 until the fixing block 31 moves to one side of the other set of support plates 13. The fixing block 31 can be rotated so that the fixing block 31 is locked on one side of the other set of support plates 13. At the same time, since the spring 30 has elastic potential energy to return to one side, it can keep the fixing block 31 tightly attached to the other set of support plates 13, which can fix the position of the two sets of support plates 13 and help to fix the position of the duct body 14.

[0037] like Figure 5 and Figure 7As shown, a vertical plate 32 is fixedly connected to the top of the support plate 13. Two sets of vertical plates 32 are symmetrically distributed on both sides of the ring 12. The two sets of vertical plates 32 are positioned on one side of the duct body 14. By setting two sets of vertical plates 32 at the top of the support plate 13, when the two sets of support plates 13 are clamped by the fixing block 31, the vertical plates 32 can clamp the positions of both sides of the duct body 14, facilitating the positioning of the duct body 14. A first pad is fixedly connected to one side of each vertical plate 32. The first pad 33 is attached to one side of the duct body 14. By setting the first pad 33 on one side of the vertical plate 32, the duct body 14 can be clamped and fixed, and the two sides of the duct body 14 can be protected by the first pad 33. The top of the support plate 13 is fixed with a second pad 34, which is attached to the bottom of the duct body 14. The second pad 34 set at the top of the support plate 13 can protect the bottom of the duct body 14.

[0038] like Figure 4 As shown, a limiting plate 35 is fixed to the top of the base plate 1. There are four sets of limiting plates 35, which are symmetrically distributed on the top of the base plate 1. A counterweight 36 is arranged between the four sets of limiting plates 35. By setting four sets of limiting plates 35 on the top of the base plate 1, the square counterweight 36 can be installed in the four sets of limiting plates 35, thereby limiting the counterweight 36. The counterweight 36 is set on the top of the base plate 1. After the counterweight 36 is installed on the top of the base plate 1, the stability of the base plate 1 can be improved.

[0039] A method for rapid installation of air ducts, applied to the aforementioned rapid installation device for air ducts, includes the following steps:

[0040] S1. Drive the motor 16 to rotate and drive the gear 17 to rotate according to the required width of the duct body 14. When the gear 17 rotates, it will drive the rack 18 to move. By moving the rack 18 and cooperating with the horizontal frame 15, the distance between the two sets of base plates 1 is adjusted until it matches the width of the duct body 14.

[0041] S2. Place the duct body 14 on the top of the two sets of support plates 13 and pull the fixing block 31. When the fixing block 31 moves, it will drive the round rod 28 and the round plate 29 to move. The round plate 29 will squeeze the spring 30. When the fixing block 31 moves to one side of the support plate 13, rotate the fixing block 31 so that the fixing block 31, in conjunction with the restoring force of the spring 30, is stuck on one side of the support plate 13 and, in conjunction with the vertical plate 32, fixes the position of the duct.

[0042] S3. Simultaneously start two sets of winches 5 to wind up two sets of steel cables 6. When the steel cables 6 are wound up, they will drive the hooks 11 to move upward. The top ring 12 and the support plate 13 move upward together through the movement of the hooks 11. When the two sets of support plates 13 move upward at the same time, they can drive the two sides of the duct body 14 to move upward together, which makes it easier to install the duct body 14.

[0043] S4. When it is necessary to install a long duct body 14, multiple rows of base plates 1 and lifting components can be set up at the same time, and the multiple rows of base plates 1 and lifting components can be arranged in parallel. Multiple sets of winches 5 can be started at the same time to drive the duct body 14 upward, which is convenient for hoisting the long duct body 14.

[0044] Working Principle: To address the inconvenience of hoisting the ductwork, when the duct body 14 needs installation, the motor 16 can be started to drive the gear 17 to rotate. The rotation of the gear 17 drives the rack 18 to move. Since the horizontal frame 15 is mounted on one set of base plates 1, and the rack 18 is mounted on another set of base plates 1, the movement of the rack 18 to one side adjusts the distance between the two sets of base plates 1. When the distance between the two sets of base plates 1 is adjusted, the sliding rod 22 slides within the sleeve 21, thus coordinating with the adjustment of the rack 18 and the horizontal frame 15 to guide the other side of both sets of base plates 1 together. This ensures that both sides of the two sets of base plates 1 can move synchronously when adjusting the distance until they match the width of the duct body 14 to be installed, at which point the rotation of the motor 16 stops. By installing multiple sets of universal wheels 37 at the bottom of the base plates 1, it is convenient to adjust the distance between the two sets of base plates 1. The base plate 1 is moved by the caster wheel 37 to adjust the spacing. Then, the duct body 14 to be installed is placed on the top of the two sets of support plates 13. The fixing block 31 is pulled to one side. When the fixing block 31 moves, it will drive the round rod 28 and the round plate 29 to move together. When the round plate 29 moves, it will squeeze the spring 30 until the fixing block 31 moves to one side of the other set of support plates 13. The fixing block 31 can be rotated so that the fixing block 31 is locked on one side of the other set of support plates 13. At the same time, since the spring 30 has elastic potential energy to return to one side, it can keep the fixing block 31 tightly attached to the other set of support plates 13, and the position of the two sets of support plates 13 can be fixed. By setting two sets of vertical plates 32 at the top of the support plates 13, when the two sets of support plates 13 are clamped by the fixing block 31, the positions of the two sides of the duct body 14 can be clamped by the vertical plates 32, which is convenient for positioning the duct body 14.

[0045] Simultaneously starting two sets of winches 5 can wind the steel cable 6 onto the winches 5. While the steel cable 6 is being wound, the first roller 8, the second roller 9, and the third roller 10 provide support for the moving cable 6, ensuring its smooth sliding. As both sets of steel cables 6 are wound, they will cause the two sets of hooks 11 to move upwards together. The hooks 11, in turn, will pull the ring 12 and the support plate 13 upwards. The two sets of support plates 13, in their upward movement, can simultaneously lift both sides of the duct body 14, thus facilitating the smooth movement of the duct body 14. When the support plates 13 move, they will also cause the T-shaped plate 25 to move. Since the T-shaped plate 25 is located inside the vertical frame 24, it can... The cooperation between the T-shaped plate 25 and the vertical frame 24 can limit the up and down movement of the support plate 13, preventing the support plate 13 from shifting when pulled by the hook 11 and the ring 12. By setting pulleys 26 on both sides of the T-shaped plate 25, the pulleys 26 can slide within the vertical frame 24 when the T-shaped plate 25 moves, thereby improving the smoothness of the movement of the T-shaped plate 25. By setting the first diagonal bar 2 and the second diagonal bar 3 at the top of the base plate 1, the stability of the support rod 4 and the base plate 1 can be improved. When it is necessary to install a long air duct, multiple rows of base plates 1 and lifting components can be set, and multiple sets of winches 5 can be operated simultaneously to lift the long air duct body 14 or multiple sets of air duct bodies 14 at the same time, thereby improving the installation efficiency of the air duct.

[0046] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A duct quick mounting device comprising a base plate (1), a lifting assembly is installed at the top end of the base plate (1), characterized in that: The lifting assembly comprises a winch (5) fixed to the top end of the bottom plate (1), an outer wall of the winch (5) is provided with a steel cable (6), one end of the steel cable (6) is fixedly connected with a hook (11), the top end of the bottom plate (1) is fixedly connected with a supporting rod (4), two groups of first inclined rods (2) are fixed to the two sides of the supporting rod (4), the bottom of the two groups of first inclined rods (2) is fixed to the top end of the bottom plate (1), one side of the top end of the bottom plate (1) is fixedly connected with a second inclined rod (3), the top end of the second inclined rod (3) is fixed to one side of the supporting rod (4), a through hole (7) is formed in one side of the second inclined rod (3), a first roller (8) is rotatably connected to the inner wall of the through hole (7), the steel cable (6) penetrates through the through hole (7) and is arranged at the top end of the first roller (8), the top end and one side of the supporting rod (4) are fixedly connected with a second roller (9) and a third roller (10) respectively, the steel cable (6) is arranged on the outer wall of the second roller (9) and the third roller (10), the bottom of the hook (11) is sleeved with a circular ring (12), the bottom of the circular ring (12) is fixedly connected with a supporting plate (13), the top end of the supporting plate (13) is provided with a wind pipe body (14), the bottom plate (1) and the lifting assembly are provided with two groups and are symmetrically distributed, the top end of the two groups of bottom plates (1) is provided with an adjusting assembly for adjusting the spacing.

2. A duct quick mounting device according to claim 1, characterized in that The adjusting assembly comprises a horizontal frame (15) fixed to the top end of one group of bottom plates (1), a motor (16) fixed to the top end of the horizontal frame (15), a gear (17) fixed to the output end of the motor (16), the gear (17) arranged on the inner wall of the horizontal frame (15), a rack (18) slidingly arranged on the inner wall of the horizontal frame (15), the rack (18) engaged on one side of the gear (17), one side of the rack (18) fixedly connected to the top end of the other group of bottom plates (1), one side of the horizontal frame (15) fixedly connected with a sleeve block (20), the sleeve block (20) sleeved on the outer wall of the rack (18), the other end of the rack (18) fixedly connected with a side plate (19).

3. A ductwork quick-fit arrangement according to claim 2, wherein, The top end of one group of bottom plates (1) is fixedly connected with a sleeve frame (21), the inner wall of the sleeve frame (21) is slidingly connected with a sliding rod (22), one end of the sliding rod (22) is fixedly connected to the top end of the other group of bottom plates (1), the other end of the sliding rod (22) is fixedly connected with a stop block (23), the stop block (23) is slidingly arranged in the sleeve frame (21).

4. A duct quick mounting device according to claim 3, characterized in that One side of the supporting rod (4) is fixedly connected with a vertical frame (24), one side of the supporting plate (13) is fixedly connected with a T-shaped plate (25), one end of the T-shaped plate (25) is slidingly arranged in the inner wall of the vertical frame (24), both ends of the T-shaped plate (25) are rotatably connected with a pulley (26), the pulley (26) is slidingly arranged in the inner wall of the vertical frame (24).

5. A duct quick mounting device according to claim 4, characterized in that The bottom of the bottom plate (1) is rotatably connected with a universal wheel (37), the universal wheel (37) is provided with multiple groups and is respectively distributed at the corners of the bottom of the bottom plate (1).

6. A duct quick mounting device according to claim 5, characterized in that The bottom of one group of the supporting plates (13) is fixedly connected with a bottom frame (27), the inner wall of the bottom frame (27) is slidably connected with a round rod (28), one end of the round rod (28) is fixedly connected with a round plate (29), the round plate (29) is slidably arranged on the inner wall of the bottom frame (27), one side of the round plate (29) is fixedly connected with a spring (30), the spring (30) is sleeved on the outer wall of the round rod (28), one end of the spring (30) is fixedly connected to one side of the inner wall of the bottom frame (27), the other end of the round rod (28) is rotatably connected with a fixed block (31), and the fixed block (31) is arranged on one side of the other group of the supporting plates (13).

7. A duct quick mounting device according to claim 6, characterized in that The top end of the supporting plate (13) is fixedly connected with a vertical plate (32), the vertical plate (32) is provided in two groups and is symmetrically arranged on the two sides of the circular ring (12), and the two groups of vertical plates (32) are arranged on one side of the air pipe body (14).

8. A duct quick mounting device according to claim 7, characterized in that One side of the vertical plate (32) is fixedly connected with a first backing plate (33), the first backing plate (33) is attached to one side of the air pipe body (14), the top end of the supporting plate (13) is fixedly connected with a second backing plate (34), and the second backing plate (34) is attached to the bottom of the air pipe body (14).

9. A duct quick mounting device according to claim 8, characterized in that The top end of the bottom plate (1) is fixedly connected with a limiting plate (35), the limiting plate (35) is provided in four groups and is symmetrically arranged on the top end of the bottom plate (1), a counterweight (36) is arranged between the four groups of limiting plates (35), and the counterweight (36) is arranged on the top end of the bottom plate (1).

10. A method of quickly installing a duct, applied to the quickly installing apparatus for a duct according to claim 9, characterized by, The method comprises the following steps: S1, according to the width of the air pipe body (14) to be installed, the motor (16) is driven to rotate to drive the gear (17) to rotate, the gear (17) rotates to drive the rack (18) to move, the two groups of bottom plates (1) are adjusted in distance by the moving rack (18) cooperating with the horizontal frame (15), until the width of the air pipe body (14) is adapted; S2, the air pipe body (14) is placed on the top end of the two groups of supporting plates (13), and the fixed block (31) is pulled, the fixed block (31) moves to drive the round rod (28) and the round plate (29) to move, the round plate (29) presses the spring (30), the fixed block (31) is rotated when the fixed block (31) moves to one side of the supporting plate (13), the fixed block (31) is clamped on one side of the supporting plate (13) by the restoring force of the spring (30), and the position of the air pipe is fixed by cooperating with the vertical plate (32); S3, two groups of winches (5) are started at the same time to wind the two groups of steel cables (6), the hooks (11) move upward when the steel cables (6) are wound, the top end of the circular ring (12) and the supporting plate (13) move upward through the movement of the hooks (11), and the two groups of supporting plates (13) move upward at the same time, so that the two sides of the air pipe body (14) move upward, thereby facilitating the installation of the air pipe body (14); S4, when the long duct body (14) needs to be installed, multiple rows of bottom plates (1) and lifting assemblies can be arranged at the same time, and the multiple rows of bottom plates (1) and the lifting assemblies are arranged in parallel, the duct body (14) can be driven upward by simultaneously starting multiple hoists (5), and the long duct body (14) is convenient to hoist.

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