A duct mounting platform

Abstract

The application relates to a duct installation platform, belonging to the technical field of duct installation, which comprises a moving base and a lifting platform sliding on the moving base, a gas cylinder for driving the lifting platform to move up and down is hinged between the moving base and the lifting platform, a circular ring is arranged below the lifting platform, the gas cylinder is located in the circular ring, a connecting piece is arranged between the lifting platform and the circular ring, the connecting piece is used for driving the circular ring to move in the same direction when the lifting platform moves, a rotating ring is rotatably sleeved on the circular ring, the rotating axis of the rotating ring is parallel to the sliding direction of the lifting platform, a manned platform is arranged on the rotating ring, and the manned platform is located below the lifting platform. The application has the effect of facilitating worker operation.

Description

Technical Field

[0001] This application relates to the field of duct installation technology, and in particular to a duct installation platform. Background Technology

[0002] Currently, the installation of ventilation ducts in subway stations is usually carried out by hoisting single sections onto an installation platform or by assembling multiple sections and then using a lift for installation.

[0003] In related technologies, the duct installation platform includes a movable base and a lifting platform. The movable base is equipped with casters at its lower end. The lifting platform slides vertically on the movable base and is used to place the duct. Four push cylinders are hinged between the movable base and the lifting platform, and these cylinders are tilted. Activating the push cylinders pulls the lifting platform downwards, bringing it closer to the movable base. The duct to be installed is placed on the lifting platform. Activating the push cylinders again causes the lifting platform to rise, transporting the duct to the installation location.

[0004] Regarding the aforementioned technologies, after the lifting platform transports the air ducts to the installation location, a separate manual operating platform needs to be set up to facilitate workers fixing the air ducts to the corresponding hangers, which is cumbersome. Summary of the Invention

[0005] To facilitate worker operation, this application provides a duct installation platform.

[0006] The duct installation platform provided in this application adopts the following technical solution:

[0007] A duct installation platform includes a movable base and a lifting platform that slides on the movable base. A cylinder for driving the lifting platform to move up and down is hinged between the movable base and the lifting platform. A ring is provided below the lifting platform, and the cylinder is located inside the ring. A connector is provided between the lifting platform and the ring. The connector is used to drive the ring to move in the same direction when the lifting platform moves. A rotating ring is rotatably sleeved on the ring. The rotation axis of the rotating ring is parallel to the sliding direction of the lifting platform. A personnel platform is provided on the rotating ring, and the personnel platform is located below the lifting platform.

[0008] By adopting the above technical solution, the cylinder is activated to drive the lifting platform to move downwards, bringing the lifting platform and the circular ring closer to the moving base. The air duct is then placed on the lifting platform, and the worker stands on the platform. Next, the cylinder is activated, driving the lifting platform to move upwards. The lifting platform pulls the circular ring and the rotating ring through the connecting parts, thereby causing the rotating ring to lift the worker on the platform and move the air duct to the installation position. After that, the platform is rotated to the required position. Because there is a certain height difference between the lifting platform and the platform, it is convenient for the worker to stand and work. At the same time, there is no need to set up a separate manual operating platform after hoisting the air duct, which helps to facilitate the worker's operation.

[0009] Preferably, the connector includes a connecting rope disposed opposite to the lifting platform and the ring, a drum is rotatably disposed on the lifting platform, the end of the connecting rope away from the ring is wound around the drum, the winding direction of the connecting rope is the same, and a rotating component is provided on the lifting platform for adjusting and fixing the rotation of the drum.

[0010] By adopting the above technical solution, the rotation of the drum is adjusted by the rotating component, which causes the drum to wind or unwind the connecting rope, and the height of the ring is adjusted. This makes it easy to adjust the distance between the personnel platform and the lifting platform according to the worker's height and actual operating needs, thus providing convenience for the worker's operation to a certain extent.

[0011] Preferably, the rotating component includes a worm gear coaxially connected to the drum and a worm rotatably mounted on the lifting platform, wherein the worm and the worm gear mesh.

[0012] By adopting the above technical solution, rotating the worm gear drives the worm wheel to rotate, which in turn drives the drum to wind or unwind the connecting rope. This allows for easy adjustment of the distance between the personnel platform and the lifting platform according to the worker's height and actual operating needs, providing convenience for the worker's operation to a certain extent. At the same time, the meshing between the worm gear and the worm wheel has a self-locking function, which helps to achieve relative fixation between the drum and the lifting platform after the drum is rotated, preventing unnecessary loosening of the connecting rope and helping to ensure safety.

[0013] Preferably, the manned platform includes a fixed platform disposed on a rotating ring and a movable platform slidably sleeved on the side of the fixed platform away from the rotating ring. The sliding direction of the movable platform is perpendicular to the sliding direction of the lifting platform. A sliding cavity is provided on the movable platform for sliding engagement with the fixed platform. A push plate is slidably disposed in the sliding cavity. The push plate is located above the fixed platform. The sliding direction of the push plate is parallel to the sliding direction of the lifting platform. A rack is disposed on the side of the push plate near the fixed platform. The length direction of the rack is parallel to the sliding direction of the movable platform. A first gear is disposed on the fixed platform. The axis of the first gear is perpendicular to the sliding direction of the movable platform. The rack is used to mesh with the first gear. An adjustment component is provided on the movable platform for adjusting the sliding direction of the push plate towards or away from the fixed platform.

[0014] By adopting the above technical solution, the adjusting component slides the push plate away from the fixed platform, thereby disengaging the rack and the first gear. This allows the moving platform to slide towards or away from the fixed platform, facilitating adjustment of the moving platform's position according to actual needs. This expands the worker's operating range and eliminates the need to move the base, providing convenience for the worker. Conversely, by adjusting the push plate towards the fixed platform, the rack and the first gear mesh, achieving relative fixation between the fixed platform and the moving platform. This prevents the moving platform from slipping during operation, improving safety.

[0015] Preferably, the adjustment assembly includes a first push spring disposed in the sliding cavity, a foot block slidably disposed on the side of the fixed platform near the lifting platform, a second push spring disposed on the fixed platform, and a transmission component disposed on the fixed platform. The first push spring is used to push the push plate to slide towards the fixed platform. The foot block is located on the side of the moving platform near the rotating ring. The sliding direction of the foot block is parallel to the sliding direction of the lifting platform. The foot block is located above the second push spring. The second push spring is used to push the foot block to slide towards the lifting platform. The transmission component is used to push the push plate to slide away from the fixed platform when the foot block slides towards the fixed platform.

[0016] By adopting the above technical solution, the first spring pushes the push plate to slide towards the fixed platform, causing the rack and the first gear to mesh, thereby achieving relative fixation between the fixed platform and the moving platform. This prevents the moving platform from slipping during operation, improving safety. By stepping on the foot pedal on the fixed platform and pressing it to move towards the fixed platform, the transmission component pushes the push plate to slide away from the fixed platform, disengaging the rack and the first gear. This allows the moving platform to slide towards or away from the fixed platform, facilitating adjustment of the moving platform's position according to actual needs, expanding the worker's operating range, and providing a simple and convenient solution.

[0017] Preferably, the fixed platform has an installation groove on the side near the lifting platform. The installation groove is located on the side of the foot pedal away from the rotating ring. The length direction of the installation groove is parallel to the sliding direction of the moving platform. The transmission component includes a transmission rod rotatably disposed in the installation groove. The rotation axis of the transmission rod is perpendicular to the sliding direction of the moving platform. A rotating shaft is disposed on the transmission rod. The rotating shaft rotates within the installation groove. The distance from the rotating shaft to the side of the transmission rod near the rotating ring is less than the distance from the rotating shaft to the side of the transmission rod away from the rotating ring. The end of the transmission rod near the rotating ring is located below the foot pedal, and the end of the transmission rod away from the rotating ring is used to abut against the side of the push plate near the fixed platform.

[0018] By adopting the above technical solution, when the foot pedal moves toward the direction of the fixed platform, pressing the end of the transmission rod near the rotating ring drives the transmission rod to rotate, causing the end of the transmission rod away from the rotating ring to rise. At this time, the transmission rod abuts against the side of the push plate near the fixed platform and pushes the push plate to slide away from the fixed platform, causing the rack and the first gear to disengage, so that the position of the moving platform can be adjusted according to actual needs, which helps to expand the operator's operating range and is simple and convenient.

[0019] Preferably, a vertical rod is provided on the side of the rotating ring near the fixed platform, and a sleeve rod is hinged to the vertical rod. The hinge axis of the sleeve rod is perpendicular to the sliding direction of the moving platform. A sliding rod is slidably provided inside the sleeve rod. The sliding direction of the sliding rod is parallel to the length direction of the sleeve rod. The end of the sliding rod away from the sleeve rod is hinged to the moving platform. An insert rod is slidably passed through the sleeve rod. The sliding direction of the insert rod is perpendicular to the length direction of the sleeve rod. The sliding rod has multiple through holes for the insert rod to slide through. The sleeve rod is provided with a fixing member for driving the insert rod to slide towards or away from the sliding rod.

[0020] By adopting the above technical solution, the fixing component drives the insert rod to slide away from the slide rod, thereby disengaging the insert rod from the slide rod and facilitating the sliding of the slide rod within the sleeve rod when the moving platform moves. The fixing component drives the insert rod to slide closer to the slide rod, allowing the insert rod to pass through the corresponding through hole on the slide rod, thus achieving relative fixation between the sleeve rod and the slide rod. This makes the slide rod and the sleeve rod form a tension rod for the moving platform, which helps to improve the relative stability between the moving platform and the fixed platform.

[0021] Preferably, the fixing component includes a tension spring sleeved on the insertion rod and a pull rope disposed on the insertion rod. The tension spring is used to pull the insertion rod to slide towards the slide rod. One end of the tension spring is disposed on the sleeve rod, and the other end is disposed on the side of the insertion rod away from the slide rod. The end of the pull rope away from the insertion rod is disposed on the foot pedal. The sleeve rod is provided with a first guide pulley, which is located on the side of the insertion rod near the upright. The distance from the first guide pulley to the sleeve rod is greater than the length of the insertion rod. The end of the upright rod near the sleeve rod is provided with a second guide pulley. The pull rope located between the foot pedal and the insertion rod slides and overlaps the first guide pulley and the second guide pulley in sequence.

[0022] By adopting the above technical solution, when the foot pedal moves towards the fixed platform, the pull rope is pulled, causing the pull rope to pull the insert rod away from the slide rod, thus disengaging the insert rod from the slide rod. This facilitates the sliding of the slide rod within the sleeve rod when the moving platform moves. When the foot pedal is released, the tension on the pull rope decreases, and under the pull of the tension spring, the insert rod slides towards the slide rod, allowing the insert rod to pass through the corresponding through hole on the slide rod. This achieves relative fixation between the sleeve rod and the slide rod, which helps to improve the relative stability between the moving platform and the fixed platform.

[0023] Preferably, an outer gear ring is rotatably sleeved on the ring, a second gear is rotatably mounted on the ring, an inner gear ring is sleeved on the rotating ring, the second gear is located between the outer gear ring and the inner gear ring, the outer gear ring and the second gear mesh, the inner gear ring and the second gear mesh, and an operating ring is mounted on the outer gear ring, the operating ring being coaxially arranged with the outer gear ring.

[0024] By adopting the above technical solution, rotating the operating ring causes the outer gear ring to rotate, which in turn causes the second gear to rotate, which in turn causes the inner gear ring and the rotating ring to rotate. This helps the workers on the manned platform to adjust their position and facilitates their operation.

[0025] Preferably, a roller is provided at the end of the transmission rod away from the foot pedal, and the roller is used to abut against the side of the push plate near the fixed platform.

[0026] By adopting the above technical solution, the roller configuration reduces the friction between the transmission rod and the push plate when the transmission rod pushes the push plate, facilitating the sliding of the moving table.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Activate the cylinder to lower the lifting platform, bringing the lifting platform and the circular ring close to the moving base. Place the air duct on the lifting platform, and have the worker stand on the personnel platform. Then, activate the cylinder to raise the lifting platform. The lifting platform pulls the circular ring and rotating ring through the connecting parts, causing the rotating ring to lift the worker on the personnel platform. After moving the air duct to the installation position, rotate the personnel platform to the desired position. Because of the height difference between the lifting platform and the personnel platform, it is convenient for workers to stand and work. At the same time, there is no need to set up a separate manual operating platform after hoisting the air duct, which helps to facilitate the operation of workers.

[0029] 2. By adjusting the push plate of the adjustment component to slide away from the fixed platform, the rack and the first gear are disengaged, so that the moving platform can be driven to slide closer to or away from the fixed platform. This allows for easy adjustment of the position of the moving platform according to actual needs, which helps to expand the operator's operating range. It eliminates the need to push the moving base, thus providing convenience for the operator. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0031] Figure 2 yes Figure 1 Enlarged view of section A.

[0032] Figure 3 This is a partial structural cross-sectional view of an embodiment of this application.

[0033] Figure 4 yes Figure 3 Enlarged view of section B.

[0034] Figure 5 yes Figure 3 Enlarged view of section C.

[0035] Explanation of reference numerals in the attached drawings: 1. Movable base; 2. Lifting platform; 3. Cylinder; 4. Ring; 5. Rotating ring; 6. Personnel platform; 61. Fixed platform; 62. Movable platform; 7. Connecting rope; 8. Drum; 9. Rotating component; 91. Worm gear; 92. Worm; 10. Slide cavity; 11. Push plate; 12. Rack; 13. First gear; 14. Adjustment assembly; 141. First push spring; 142. Foot pedal; 143. Second push spring; 144. Transmission component; 1441. Transmission rod; 15. Mounting groove; 16. Rotating shaft; 17. Upright pole; 18. Sleeve rod; 19. Slide rod; 20. Insert rod; 21. Through hole; 22. Fixing component; 221. Tension spring; 222. Pull rope; 23. First guide pulley; 24. Second guide pulley; 25. External gear ring; 26. Second gear; 27. Internal gear ring; 28. Operating ring; 29. ​​Roller; 30. Guide rod; 31. Guide hole; 32. First support plate; 33. Guide wheel; 34. Second support plate; 35. Opening; 36. Connecting groove; 37. Telescopic rod; 38. Notch; 39. Groove; 40. Magnet; 41. Iron sheet; 42. Support rod; 43. Fixing rod; 44. Handle; 45. Marking line. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0037] This application discloses a duct installation platform. (Refer to...) Figure 1 and Figure 2 The duct installation platform includes a movable base 1 and a lifting platform 2 slidably mounted on the movable base 1. The lifting platform 2 slides vertically. Four cylinders 3 are hinged between the movable base 1 and the lifting platform 2 to drive the lifting platform 2 up and down. The four cylinders 3 are tilted. A ring 4 is located below the lifting platform 2, and the four cylinders 3 are located inside the ring 4. A connector is provided between the lifting platform 2 and the ring 4. The connector is used to drive the ring 4 to move in the same direction when the lifting platform 2 moves. The connector includes a connecting rope 7 positioned opposite each other between the lifting platform 2 and the ring 4. Multiple guide rods 30 are fixed circumferentially at intervals on the side of the ring 4 closest to the lifting platform 2. In this embodiment, four guide rods 30 are provided, and the guide rods 30 are vertically positioned. Guide holes 31 are respectively provided on the lifting platform 2 for the corresponding guide rods 30 to pass through.

[0038] Reference Figure 1 and Figure 2 A rotating ring 5 is rotatably sleeved on the outer wall of the ring 4. The rotating ring 5 and the ring 4 are coaxially arranged. The rotation axis of the rotating ring 5 is parallel to the sliding direction of the lifting platform 2. A manned platform 6 is fixedly connected to the outer wall of the rotating ring 5. The manned platform 6 is located below the lifting platform 2. A railing (not shown in the figure) is provided on the side of the manned platform 6 away from the rotating ring 5.

[0039] Reference Figure 2 An opening 35 is provided on the side of the ring 4 near the rotating ring 5. The opening 35 is opened along the circumference of the ring 4. An external gear ring 25 is rotatably fitted on the ring 4. The external gear ring 25 and the ring 4 are coaxially arranged. The external gear ring 25 is located on the side wall of the opening 35. A second gear 26 is rotatably arranged on the bottom wall of the opening 35. The rotation axis of the second gear 26 is parallel to the rotation axis of the external gear ring 25. An internal gear ring 27 is fixedly fitted on the inner wall of the rotating ring 5. The second gear 26 is located between the external gear ring 25 and the internal gear ring 27. The external gear ring 25 and the second gear 26 mesh. The internal gear ring 27 and the second gear 26 mesh. An operating ring 28 is fixedly mounted on the external gear ring 25 by a fixing rod 43. The operating ring 28 is coaxially arranged with the external gear ring 25.

[0040] Reference Figure 3 and Figure 4 Two first support plates 32 are fixedly fixed on the bottom wall of the lifting platform 2. A drum 8 is rotatably arranged between the two first support plates 32. The drum 8 is located in the middle of the lifting platform 2. The rotation axis of the drum 8 is perpendicular to the arrangement direction of the connecting ropes 7 on both sides. One end of the connecting rope 7 is fixed to the top wall of the ring 4, and the other end is wound around the drum 8. The winding direction of the connecting ropes 7 is the same. A guide wheel 33 is fixed on the bottom wall of the lifting platform 2. The guide wheel 33 corresponds to the connecting rope 7 one by one, and the connection point of the guide wheel 33 and the corresponding connecting rope 7 on the ring 4 corresponds in the vertical direction. The connecting rope 7 between the drum 8 and the ring 4 slides and overlaps on the corresponding guide wheel 33. A rotating part 9 is provided on the lifting platform 2 for adjusting and fixing the rotation of the drum 8.

[0041] Reference Figure 4 The bottom wall of the lifting platform 2 is fixed with a second support plate 34. The rotating component 9 includes a worm gear 91 coaxially connected to the drum 8 and a worm 92 rotatably set on the second support plate 34. The worm 92 and the worm gear 91 mesh. One end of the worm 92 is fixedly connected to a handle 44 to facilitate the rotation of the worm 92.

[0042] In operation, cylinder 3 is activated, causing the lifting platform 2 to move downwards, bringing it and the personnel platform 6 closer to the movable base 1. The duct to be installed is then placed on the lifting platform 2, and the worker stands on the personnel platform 6. Next, cylinder 3 is activated again, causing the lifting platform 2 to rise. As the lifting platform 2 gradually moves upwards, the connecting rope 7 pulls the ring 4, rotating ring 5, and personnel platform 6 upwards. The guide rod 30 is located within the guide hole 31, preventing the ring 4 from wobbling. The lifting platform 2 continues until it transports the duct to the desired installation position. Then, the operating ring 28 is rotated, causing the outer gear ring 25 to rotate. The outer gear ring 25 then rotates the second gear 26, which in turn rotates the inner gear ring. 27 and rotating ring 5 rotate to adjust the worker to the required position. The worker moves the air duct to the corresponding hanger. Since the personnel platform 6 is lower than the lifting platform 2 at this time, it is convenient for the worker to stand and operate. At the same time, by rotating handle 44, handle 44 drives worm gear 92 to rotate, worm gear 92 drives worm wheel 91 and drum 8 to rotate, so that drum 8 can simultaneously wind up or unwind the connecting ropes 7 on both sides, which can adjust the height of lifting platform 2. The meshing between worm gear 92 and worm wheel 91 has a self-locking function, so that drum 8 can remain relatively fixed with lifting platform 2, which is convenient for workers of different heights or different positions to operate. There is no need to set up a separate manual operation platform, which facilitates the operation of workers to a certain extent.

[0043] Reference Figure 1 and Figure 5 The manned platform 6 includes a fixed platform 61 fixedly connected to the outer wall of the rotating ring 5 and a movable platform 62 slidably sleeved on the side of the fixed platform 61 away from the rotating ring 5. The sliding direction of the movable platform 62 is perpendicular to the sliding direction of the lifting platform 2. A sliding cavity 10 is provided on the side of the movable platform 62 near the fixed platform 61 for sliding cooperation with the fixed platform 61. A protrusion (not shown in the figure) is fixed on the opposite side wall of the fixed platform 61. A groove (not shown in the figure) is provided on the opposite inner wall of the sliding cavity 10 for sliding cooperation with the protrusion, so that the movable platform 62 is not easy to detach from the fixed platform 61.

[0044] Reference Figure 1 and Figure 5 A connecting groove 36 is provided on the top wall of the sliding cavity 10. A push plate 11 is slidably arranged in the connecting groove 36. The push plate 11 is located above the fixed platform 61. The sliding direction of the push plate 11 is parallel to the sliding direction of the lifting platform 2. Multiple telescopic rods 37 are fixed between the side of the push plate 11 away from the fixed platform 61 and the bottom wall of the connecting groove 36. The telescopic direction of the telescopic rods 37 is parallel to the sliding direction of the push plate 11.

[0045] Reference Figure 5A rack 12 is fixedly connected to the side of the push plate 11 near the fixed platform 61. The length direction of the rack 12 is parallel to the sliding direction of the moving platform 62. A notch 38 is opened on the side of the fixed platform 61 away from the rotating ring 5. A first gear 13 is fixedly installed in the notch 38. The first gear 13 extends out of the notch 38. The axis of the first gear 13 is perpendicular to the sliding direction of the moving platform 62. The rack 12 is used to mesh with the first gear 13. An adjustment component 14 is provided on the moving platform 62 for adjusting the push plate 11 to slide towards or away from the fixed platform 61.

[0046] Reference Figure 1 and Figure 5 To facilitate the sliding of the adjustable push plate 11, a groove 39 is provided on the side of the fixed platform 61 near the lifting platform 2. The groove 39 is located on the side of the movable platform 62 near the rotating ring 5. The adjusting assembly 14 includes a first push spring 141 disposed on the bottom wall of the connecting groove 36, a foot pedal 142 slidably disposed in the groove 39, a second push spring 143 disposed on the bottom wall of the groove 39, and a transmission component 144 disposed in the fixed platform 61. The first push spring 141 corresponds one-to-one with the telescopic rod 37. The first push spring 141 is movably sleeved on the corresponding telescopic rod 37. One end of the first push spring 141 is fixed to the bottom wall of the connecting groove 36, and the other end... The end is fixed to the side of the push plate 11 away from the fixed platform 61. The first push spring 141 is used to push the push plate 11 to slide towards the fixed platform 61. The sliding direction of the foot block 142 is parallel to the sliding direction of the lifting platform 2. The extension direction of the second push spring 143 is parallel to the sliding direction of the lifting platform 2. The foot block 142 is located above the second push spring 143. The second push spring 143 is used to push the foot block 142 to slide towards the lifting platform 2. The transmission component 144 is used to push the push plate 11 to slide away from the fixed platform 61 when the foot block 142 slides towards the fixed platform 61.

[0047] Reference Figure 1 and Figure 5A mounting groove 15 is provided on the side of the fixed platform 61 near the lifting platform 2. The mounting groove 15 is located on the side of the groove 39 away from the rotating ring 5 and communicates with the groove 39. In this embodiment, two mounting grooves 15 are provided, located on both sides of the first gear 13. The length direction of the mounting groove 15 is parallel to the sliding direction of the moving platform 62. The transmission component 144 includes a transmission rod 1441 rotatably disposed in the mounting groove 15. The rotation axis of the transmission rod 1441 is perpendicular to the sliding direction of the moving platform 62. A fixed thread is passed through the transmission rod 1441. A rotating shaft 16 is provided, which rotates on the inner wall of the corresponding mounting groove 15. The distance from the rotating shaft 16 to the side of the transmission rod 1441 near the rotating ring 5 is less than the distance from the rotating shaft 16 to the side of the transmission rod 1441 away from the rotating ring 5. The end of the transmission rod 1441 near the rotating ring 5 extends into the groove 39 and is located between the foot block 142 and the second push spring 143. The second push spring 143 abuts against the transmission rod 1441. A roller 29 is installed on the end of the transmission rod 1441 away from the rotating ring 5. The roller 29 is used to abut against the side of the push plate 11 near the fixed platform 61. A magnet 40 is attached to the side of the foot pedal 142 near the transmission rod 1441, and an iron sheet 41 is attached to the side of the transmission rod 1441 near the foot pedal 142. The iron sheet 41 is used to attract and cooperate with the magnet 40, so that the foot pedal 142 is not easy to detach from the groove 39. When there is no object pressing on the foot pedal 142, the length direction of the transmission rod 1441 is parallel to the sliding direction of the moving platform 62.

[0048] When the movable platform 62 needs to be extended outward, the worker places one foot on the foot pedal 142, shifting their weight onto it, causing the foot pedal 142 to slide towards the groove 39. The foot pedal 142 presses down on the end of the transmission rod 1441 near the rotating ring 5, causing the transmission rod 1441 to press down on the second push spring 143, thus rotating the transmission rod 1441. At this time, the end of the transmission rod 1441 away from the rotating ring 5 rises upward, abutting against the push plate 11, and pushing the push plate 11 to slide away from the fixed platform 61, compressing the first push spring 141 and disengaging the rack 12 and the first gear 13. Then, the worker uses their other foot, which is not on the foot pedal 142, to push the platform. The movable platform 62 moves away from the fixed platform 61 to the desired position, and then the foot pedal 142 is released. The second push spring 143 pushes the end of the transmission rod 1441 near the rotating ring 5 to move upward. The transmission rod 1441 pushes the foot pedal 142 upward, and the end of the transmission rod 1441 away from the rotating ring 5 rotates downward, thereby reducing the contact with the push plate 11. The compressed first push spring 141 pushes the push plate 11 to slide towards the fixed platform 61, so that the rack 12 and the first gear 13 mesh, thereby achieving relative fixation between the movable platform 62 and the fixed platform 61. This allows workers to stand on the movable platform 62 to install the air duct, expands the worker's operating range, and ensures high safety.

[0049] Reference Figure 1and Figure 5 Two uprights 17 are fixed relative to each other on the side of the rotating ring 5 near the fixed platform 61. The uprights 17 are arranged vertically and are located on both sides of the foot block 142. A sleeve rod 18 is hinged to the top of the uprights 17. The hinge axis of the sleeve rod 18 is perpendicular to the sliding direction of the moving platform 62. A sliding rod 19 is slidably arranged inside the sleeve rod 18. The sliding direction of the sliding rod 19 is parallel to the length direction of the sleeve rod 18. The end of the sliding rod 19 away from the sleeve rod 18 is hinged to the top wall of the moving platform 62 on the side away from the rotating ring 5. An insert rod 20 slides through the sleeve rod 18. The sliding direction is perpendicular to the length direction of the sleeve rod 18. The slide rod 19 has multiple through holes 21 for the insertion rod 20 to slide through. The distance from the center of the insertion rod 20 to the side of the sleeve rod 18 near the slide rod 19 is an integer multiple of the spacing between adjacent through holes 21. The slide rod 19 is provided with a marking line 45, which corresponds one-to-one with the through holes 21. The marking line 45 is located on the center line of the through hole 21, and the axis of the marking line 45 is parallel to the length direction of the slide rod 19. The sleeve rod 18 is provided with a fixing member 22 for driving the insertion rod 20 to slide towards or away from the slide rod 19.

[0050] Reference Figure 5 To facilitate the movement of the insertion rod 20, the fixing component 22 includes a tension spring 221 sleeved on the insertion rod 20 and a pull rope 222 fixedly connected to the end of the insertion rod 20 away from the slide rod 19. The tension spring 221 is used to pull the insertion rod 20 to slide towards the slide rod 19. One end of the tension spring 221 is fixedly connected to the outer wall of the sleeve rod 18, and the other end is fixedly connected to the side of the insertion rod 20 away from the slide rod 19. The end of the pull rope 222 away from the insertion rod 20 is fixed to the foot pedal 142. A support rod 42 is fixed on the 8. The support rod 42 is located on the side of the insert rod 20 near the upright rod 17. A first guide pulley 23 is installed on the support rod 42. The distance from the first guide pulley 23 to the sleeve rod 18 is greater than the length of the insert rod 20. A second guide pulley 24 is installed on the end of the upright rod 17 near the sleeve rod 18 and the bottom end of the upright rod 17. The pull rope 222 located between the foot block 142 and the insert rod 20 is slidably connected to the first guide pulley 23 and the second guide pulley 24 on the corresponding side.

[0051] When the foot pedal 142 moves toward the groove 39, it pulls the pull rope 222, which in turn pulls the insert rod 20 away from the slide rod 19, causing the insert rod 20 to move out of the through hole 21. Then, when the moving platform 62 is pushed or pulled, it causes the slide rod 19 to slide within the sleeve 18, moving the moving platform 62 to the desired position. The scale line on the slide rod 19 is aligned with the edge of the sleeve 18 near the slide rod 19. At this point, the through hole 21 on the slide rod 19 is aligned with the insert rod 20. When the foot pedal 142 is released, under the action of the second push spring 143, the transmission rod 1441 pushes the foot pedal 142 upward, reducing the tension of the foot pedal 142 on the pull rope 222. Then, the tension spring 221 pulls the insertion rod 20 to slide towards the slide rod 19, so that the insertion rod 20 is inserted into the aligned through hole 21, thereby fixing the sleeve rod 18 and the slide rod 19 relatively. The sleeve rod 18 and the corresponding slide rod 19 form a pull rod for the moving platform 62, which helps to ensure the relative stability between the moving platform 62 and the fixed platform 61 and improves safety.

[0052] The implementation principle of this application embodiment is as follows: During use, cylinder 3 is activated, causing the lifting platform 2 to move downwards, bringing the lifting platform 2 and the personnel platform 6 closer to the movable base 1. Then, the air duct to be installed is placed on the lifting platform 2, and the worker stands on the movable platform 62. Next, cylinder 3 is activated to drive the lifting platform 2 upwards. The lifting platform 2, via connecting rope 7, pulls the ring 4, rotating ring 5, and personnel platform 6 upwards until the lifting platform 2 transports the air duct to the required installation position. Then, the operating ring 28 is rotated, causing the external gear ring 25 to rotate, which in turn drives the... The second gear 26 rotates, driving the internal gear ring 27 and the rotating ring 5 to rotate, adjusting the worker to the required position; then the handle 44 is rotated, driving the worm gear 92 to rotate, which in turn drives the worm wheel 91 to rotate, causing the drum 8 to simultaneously wind up or unwind the connecting ropes 7 on both sides. The height of the lifting platform 2 is adjusted according to the worker's height and operational needs. The worker moves the air duct to the corresponding hanger for installation. Since the personnel platform 6 is lower than the lifting platform 2 at this time, it is convenient for the worker to stand, eliminating the need to set up a separate manual operating platform, which facilitates the worker's operation to a certain extent.

[0053] When the position of the moving platform 62 needs to be extended outward, the worker places one foot on the foot pedal 142, shifts his weight onto the foot pedal 142, and drives the foot pedal 142 to slide towards the groove 39. The foot pedal 142 presses the end of the transmission rod 1441 near the rotating ring 5, compressing the second push spring 143. At this time, the end of the transmission rod 1441 away from the rotating ring 5 rises upward, pushing the push plate 11 to slide away from the fixed platform 61, causing the rack 12 and the first gear 13 to disengage. When the foot pedal 142 moves towards the groove 39, the foot pedal 142 pulls the pull rope 222, which pulls the insertion rod 20 to slide away from the slide rod 19, causing the insertion rod 20 to move out of the through hole 21.

[0054] Next, the worker uses their other foot, which is not on foot pedal 142, to push the moving platform 62 toward the desired position away from the fixed platform 61, aligning the scale line on the slide rod 19 with the edge of the sleeve rod 18 near the end of the slide rod 19. At this time, the through hole 21 on the slide rod 19 is aligned with the insertion rod 20. Then, the foot on foot pedal 142 moves upward to release foot pedal 142. The second push spring 143 pushes the transmission rod 1441 upward near the rotating ring 5, and the transmission rod 1441 pushes foot pedal 142 upward. Foot pedal 142 pulls the rope. As the tension of 222 decreases, the end of the transmission rod 1441 away from the rotating ring 5 rotates downward. The compressed first push spring 141 pushes the push plate 11 to slide towards the fixed platform 61, so that the rack 12 and the first gear 13 mesh, thereby achieving relative fixation between the moving platform 62 and the fixed platform 61. The tension spring 221 pulls the insertion rod 20 to engage with the aligned through hole 21, thereby achieving relative fixation between the sleeve rod 18 and the slide rod 19, so that workers can stand on the moving platform 62 to install the air duct at other positions without having to push the moving base 1 to move.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A duct installation platform, comprising a movable base (1) and a lifting platform (2) sliding on the movable base (1), wherein a cylinder (3) for driving the lifting platform (2) to move up and down is hinged between the movable base (1) and the lifting platform (2), characterized in that: A ring (4) is provided below the lifting platform (2), and the cylinder (3) is located inside the ring (4). A connector is provided between the lifting platform (2) and the ring (4). The connector is used to drive the ring (4) to move in the same direction when the lifting platform (2) moves. A rotating ring (5) is rotatably sleeved on the ring (4). The rotation axis of the rotating ring (5) is parallel to the sliding direction of the lifting platform (2). A manned platform (6) is provided on the rotating ring (5). The manned platform (6) is located below the lifting platform (2). The manned platform (6) includes a fixed platform (61) set on the rotating ring (5) and a movable platform (62) slidably sleeved on the fixed platform (61) away from the rotating ring (5). The sliding direction of the movable platform (62) is perpendicular to the sliding direction of the lifting platform (2). The platform (62) has a sliding cavity (10) for sliding engagement with the fixed platform (61). A push plate (11) is slidably disposed in the sliding cavity (10). The push plate (11) is located above the fixed platform (61). The sliding direction of the push plate (11) is parallel to the sliding direction of the lifting platform (2). A rack (12) is disposed on the side of the push plate (11) near the fixed platform (61). The length direction of the rack (12) is parallel to the sliding direction of the moving platform (62). A first gear (13) is disposed on the fixed platform (61). The axis of the first gear (13) is perpendicular to the sliding direction of the moving platform (62). The rack (12) is used to mesh with the first gear (13). An adjustment component (14) is disposed on the moving platform (62) for adjusting the push plate (11) to slide towards or away from the fixed platform (61).

2. The duct installation platform according to claim 1, characterized in that: The connector includes a connecting rope (7) disposed opposite to the lifting platform (2) and the ring (4). A drum (8) is rotatably disposed on the lifting platform (2). The end of the connecting rope (7) away from the ring (4) is wound around the drum (8). The winding direction of the connecting rope (7) is the same. A rotating component (9) is provided on the lifting platform (2) for adjusting and fixing the rotation of the drum (8).

3. The duct installation platform according to claim 2, characterized in that: The rotating component (9) includes a worm gear (91) coaxially connected to the drum (8) and a worm (92) rotatably mounted on the lifting platform (2), wherein the worm (92) and the worm gear (91) mesh.

4. The duct installation platform according to claim 1, characterized in that: The adjustment assembly (14) includes a first push spring (141) disposed in the slide cavity (10), a foot pedal (142) slidably disposed on the side of the fixed platform (61) near the lifting platform (2), a second push spring (143) disposed on the fixed platform (61), and a transmission component (144) disposed on the fixed platform (61). The first push spring (141) is used to push the push plate (11) to slide towards the fixed platform (61). The foot pedal (142) is located on the moving platform (62) near the lifting platform (2). On one side of the rotating ring (5), the sliding direction of the foot pedal (142) is parallel to the sliding direction of the lifting platform (2). The foot pedal (142) is located above the second push spring (143). The second push spring (143) is used to push the foot pedal (142) to slide towards the lifting platform (2). The transmission member (144) is used to push the push plate (11) to slide away from the fixed platform (61) when the foot pedal (142) slides towards the fixed platform (61).

5. A duct installation platform according to claim 4, characterized in that: The fixed platform (61) has a mounting groove (15) on the side near the lifting platform (2). The mounting groove (15) is located on the side of the foot pedal (142) away from the rotating ring (5). The length direction of the mounting groove (15) is parallel to the sliding direction of the moving platform (62). The transmission component (144) includes a transmission rod (1441) rotatably disposed in the mounting groove (15). The rotation axis of the transmission rod (1441) is perpendicular to the sliding direction of the moving platform (62). The transmission rod (1441) has... A rotating shaft (16) is provided, which rotates within the mounting groove (15). The distance from the rotating shaft (16) to the side of the transmission rod (1441) near the rotating ring (5) is less than the distance from the rotating shaft (16) to the side of the transmission rod (1441) away from the rotating ring (5). The end of the transmission rod (1441) near the rotating ring (5) is located below the foot pedal (142), and the end of the transmission rod (1441) away from the rotating ring (5) is used to abut against the side of the push plate (11) near the fixed platform (61).

6. The duct installation platform according to claim 4, characterized in that: A vertical rod (17) is provided on the side of the rotating ring (5) near the fixed platform (61). A sleeve rod (18) is hinged on the vertical rod (17). The hinge axis of the sleeve rod (18) is perpendicular to the sliding direction of the moving platform (62). A sliding rod (19) is slidably provided inside the sleeve rod (18). The sliding direction of the sliding rod (19) is parallel to the length direction of the sleeve rod (18). The end of the sliding rod (19) away from the sleeve rod (18) is hinged to the moving platform (62). An insert rod (20) is slidably passed through the sleeve rod (18). The sliding direction of the insert rod (20) is perpendicular to the length direction of the sleeve rod (18). A plurality of through holes (21) are provided on the sliding rod (19) for the insert rod (20) to slide through. A fixing member (22) is provided on the sleeve rod (18) for driving the insert rod (20) to slide towards or away from the sliding rod (19).

7. A duct installation platform according to claim 6, characterized in that: The fixing component (22) includes a tension spring (221) sleeved on the insertion rod (20) and a pull rope (222) disposed on the insertion rod (20). The tension spring (221) is used to pull the insertion rod (20) to slide towards the slide rod (19). One end of the tension spring (221) is disposed on the sleeve rod (18), and the other end is disposed on the side of the insertion rod (20) away from the slide rod (19). The end of the pull rope (222) away from the insertion rod (20) is disposed on the foot pedal (142). The sleeve rod (18) A first guide pulley (23) is provided on the upper part of the rod (20) near the upright (17). The distance from the first guide pulley (23) to the sleeve rod (18) is greater than the length of the rod (20). A second guide pulley (24) is provided at the end of the upright (17) near the sleeve rod (18). The pull rope (222) located between the foot block (142) and the rod (20) slides and overlaps the first guide pulley (23) and the second guide pulley (24) in sequence.

8. A duct installation platform according to claim 1, characterized in that: An outer gear ring (25) is rotatably mounted on the ring (4), and a second gear (26) is rotatably mounted on the ring (4). An inner gear ring (27) is mounted on the rotating ring (5). The second gear (26) is located between the outer gear ring (25) and the inner gear ring (27). The outer gear ring (25) meshes with the second gear (26), and the inner gear ring (27) meshes with the second gear (26). An operating ring (28) is mounted on the outer gear ring (25), and the operating ring (28) is coaxially mounted with the outer gear ring (25).

9. A duct installation platform according to claim 5, characterized in that: The transmission rod (1441) is provided with a roller (29) at the end away from the foot pedal (142), and the roller (29) is used to abut against the side of the push plate (11) near the fixed platform (61).

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