Scaffold-free elevator installation platform set

Abstract

This invention relates to the field of elevator installation technology, specifically a novel scaffold-free elevator installation platform assembly, comprising: a car, with four square-arranged connecting plates fixedly connected to the four corners of its upper surface; the connecting plates are equipped with splicing components, including an L-shaped limiting frame, a flip-up splicing column, a drive assembly, a support rod, a plug rod, a top guard plate, side guard plates, and guard rods. The splicing column is spliced ​​by sliding and flipping; the top of the plug rod is connected to the top guard plate, and the bottom is slidably connected to the side guard plate through the limiting assembly; both ends of the guard rod are slidably connected to the side guard plate. This platform adopts a modular plug-in structure and a spring self-locking design, simplifying the assembly and disassembly process; combined with retractable components and a linkage protection system, it improves reusability and maintenance convenience; at the same time, it integrates worm gear self-locking and enclosed barriers to ensure safety during high-altitude operations and optimize elevator installation efficiency.

Description

Technical Field

[0001] This invention relates to the field of elevator installation technology, specifically to a scaffold-free elevator installation platform assembly. Background Technology

[0002] With the continuous advancement of urbanization and the increasing number of high-rise and super high-rise buildings, the demand for innovation in elevator installation technology has significantly increased, as elevators are a core component of vertical transportation. Elevator systems are mainly divided into two categories: machine-room elevators and machine-room-less elevators. Machine-room-less elevators integrate key equipment such as the traction machine and control cabinet into the top or side wall of the shaft, replacing the traditional independent machine room structure and achieving space-efficient design. Their core components include the traction drive system, car and counterweight system, door system, and safety protection mechanisms (including speed governors, guide rails, and buffers). During the installation of machine-room-less elevators, it is necessary to erect scaffolding in the shaft to install elevator tracks, counterweights, hall doors, and other components to meet the load-bearing requirements of the construction.

[0003] In existing technologies, the proposed method utilizes an elevator traction machine as the lifting drive device, constructing a rooftop work platform based on the top of the car to achieve a scaffold-free construction mode. This solution uses a combination of steel rods, steel beams, angle steel, and steel plates, along with bolts, to erect a mobile operating plane on the top of the car, allowing direct installation of components such as rails, counterweights, and landing doors, thus reducing reliance on scaffolding systems.

[0004] While the aforementioned rooftop work platform avoids the resource consumption problem of full-span scaffolding, there is still room for improvement in practical applications: its multi-component bolted design makes the installation process relatively complex, and the disassembly process requires dedicated man-hours; especially in subsequent inspection and maintenance, the repeated disassembly and assembly of the platform affects construction efficiency and increases maintenance costs. Therefore, this invention proposes a scaffold-free elevator installation platform assembly to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a scaffold-free elevator installation platform assembly to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a scaffold-free elevator installation platform assembly, comprising: a car, with connecting plates fixedly connected to the four corners of the upper surface of the car, the four connecting plates being arranged in a square shape about the upper surface of the car, and splicing components being provided on the upper side of the connecting plates; The splicing assembly includes an L-shaped limiting frame, which is fixedly connected to the connecting plate. A rotatable splicing column is slidably installed inside the L-shaped limiting frame, and a drive assembly for driving the splicing column to rotate is connected to one side of the splicing column. A support rod is slidably connected to the other side of the splicing column. An insert rod is slidably inserted into the upper side of the support rod. A top guard plate is fixedly connected to the top of the insert rod. A side guard plate is set on one side of the bottom of the insert rod. A guard rod is set on the other side of the bottom of the insert rod. The side guard plate and the insert rod are symmetrically arranged about the upper surface of the car. The side guard plate is slidably inserted into the bottom of the insert rod through a limiting component set on the splicing column. Both ends of the guard rod are slidably inserted into the side guard plate.

[0007] Preferably, the L-shaped limiting frame has a limiting groove on its inner side, a lower slot on one side of the bottom of the L-shaped limiting frame, an upper slot on one side of the top of the L-shaped limiting frame, and sliders are rotatably installed on both sides of the splicing column via pins.

[0008] Preferably, the slider is fitted inside the limiting groove and is slidably connected to the limiting groove. A groove is provided on one side of the splicing column, and the groove is slidably connected to the support rod. A slot is provided on the upper surface of the support rod, and the slot is slidably inserted into the insertion rod.

[0009] Preferably, the drive assembly includes a handwheel, which is fixedly connected to one end of a worm gear. The two ends of the worm gear are rotatably sleeved in support seats fixedly connected to the upper surface of the car. A worm wheel is engaged on the lower side of the worm gear, and the worm wheel is fixedly sleeved in the middle of the connecting shaft.

[0010] Preferably, both ends of the connecting shaft are fixedly connected to one end of the drive rod, the drive rod is rotatably sleeved in the connecting seat fixedly connected to the upper surface of the connecting plate, the other end of the drive rod is rotatably connected to one end of the connecting rod, the other end of the connecting rod is fixedly connected to the splicing column, and the connecting rod is slidably connected to both the lower and upper slots.

[0011] Preferably, the side guard plate has several splicing grooves on opposite sides, and the splicing grooves are slidably inserted into the guard rod. One side of the guard rod is fixedly connected to one end of the top column, and the other end of the top column abuts against the support rod.

[0012] Preferably, one side of the top of the side guard plate is fixedly connected to one end of the connecting rod, and the other end of the connecting rod passes through the through hole opened on the splicing column and the support rod and is slidably inserted into the connecting groove opened on the insert rod.

[0013] Preferably, a stepped hole is provided on one side wall of the splicing column far support rod, and a positioning groove is provided at the insertion end of the connecting rod and the insertion rod.

[0014] Preferably, the limiting component includes a limiting pin, one end of which is fixedly connected to a pull ring, the other end of which is slidably inserted into a positioning groove, and a return spring is fixedly connected between the limiting pin and the stepped hole.

[0015] Preferably, lifting rings are fixedly connected to both sides of the lower surface of the top guard plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. By employing a reversible splicing column, a sliding plug-in support / plug structure, and a spring-loaded limit pin design, the traditional bolt fastening method is replaced. Platform setup only requires driving the splicing column to stand up, sliding the plug-in components, and triggering the limit pin self-locking; disassembly is performed by reversing the operation. This significantly reduces the number of component connection steps, lowers the required specialized labor time, and is particularly suitable for scenarios with frequent maintenance.

[0017] 2. All components adopt a modular plug-in and flip-up storage design (e.g., splicing columns can be laid flat horizontally, and guard plates / guard rods can be quickly separated), allowing the platform to be completely disassembled without damaging the structure. Subsequent maintenance does not require reassembling the entire platform; only partial unfolding or component replacement is needed, effectively solving the efficiency loss problem caused by repeated disassembly and reassembly.

[0018] 3. Utilizing the self-locking characteristics of worm gears ensures the vertical stability of the spliced ​​columns. Combined with the plug-in integrated design of the enclosure structure (top guard plate, side guard plate, and guard rod linked for limiting movement), it simplifies the construction process while creating a closed protective space. With the addition of safety rope anchor points, it avoids reliance on scaffolding while ensuring safety during high-altitude operations, achieving a balance between space efficiency and protective effectiveness. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a bottom view of the overall structure of the present invention; Figure 3 This is a top view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the present invention; Figure 5 This is a top view of the internal structure of the present invention; Figure 6 This is a bottom view of the internal structure of the present invention. Figure 7 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B; Figure 9 For the present invention Figure 6 Enlarged schematic diagram of the structure at point C; Figure 10 For the present invention Figure 6 Enlarged schematic diagram of the structure at point D In the diagram: 1. Car; 2. Connecting plate; 3. L-shaped limit bracket; 4. Splicing column; 5. Support rod; 6. Insert rod; 7. Top guard plate; 8. Side guard plate; 9. Guard rod; 10. Limiting groove; 11. Lower slot; 12. Upper slot; 13. Sliding block; 14. Groove; 15. Slot; 16. Handwheel; 17. Worm gear; 18. Worm wheel; 19. Connecting shaft; 20. Drive rod; 21. Connecting seat; 22. Connecting rod; 23. Splicing groove; 24. Top column; 25. Connecting rod; 26. Through hole; 27. Connecting groove; 28. Step hole; 29. ​​Positioning groove; 30. Limiting pin; 31. Pull ring; 32. Return spring; 33. Lifting ring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 10This invention provides a technical solution: a scaffold-free elevator installation platform assembly, comprising: a car 1, the four corners of which are fixedly connected to the output cables of a traction machine, so that the traction machine can drive the car 1 to move, thereby moving the working platform set on the upper side of the car 1. Connecting plates 2 are fixedly connected to the four corners of the upper surface of the car 1, and the connecting plates 2 are arranged in a square shape relative to the upper surface of the car 1. A splicing assembly is provided on the upper side of the connecting plates 2. The splicing assembly facilitates the splicing of various components. The splicing assembly includes an L-shaped limiting frame 3, which is fixedly connected to the connecting plates 2. The connecting plates 2 limit the L-shaped limiting frame 3. A rotatable splicing column 4 is slidably installed inside the L-shaped limiting frame 3. The rotatable splicing column 4 facilitates the splicing of other components when it is upright. When column 4 tilts, it does not affect the normal operation of car 1, and it also facilitates the splicing of various components during subsequent maintenance. One side of the splicing column 4 is connected to a drive component for driving the tilting movement of the splicing column 4. The other side of the splicing column 4 is slidably connected to a support rod 5. A plug rod 6 is slidably inserted into the upper side of the support rod 5. The support rod 5 limits the plug rod 6. A top guard plate 7 is fixedly connected to the top of the plug rod 6. The plug rod 6 limits and supports the top guard plate 7. A side guard plate 8 is set on one side of the bottom of the plug rod 6. A guard rod 9 is set on the other side of the bottom of the plug rod 6. The side guard plate 8 and the plug rod 6 are symmetrically arranged about the upper surface of car 1. The side guard plate 8 and the guard rod 9 protect the top of car 1 around the perimeter, ensuring the safety of the operators. The side guard plate 8 is slidably inserted into the bottom of the plug rod 6 through the limiting component set on the splicing column 4. Both ends of the guard rod 9 are slidably inserted into the side guard plate 8.

[0022] In use, when a workbench needs to be built on top of the car 1, the splicing column 4 is first rotated 90 degrees from its initial horizontal position by the drive component, making it perpendicular to the upper surface of the car 1, thus facilitating the installation of subsequent components. Next, the support rod 5 is slidably installed on one side of the splicing column 4. Then, the top guard plate 7 is supported on the top side of the car 1 by the sliding insertion of the insert rod 6 and the support rod 5. Then, one side guard plate 8 is slidably inserted into the insert rod 6, and the insert rod 6, splicing column 4, and support rod 5 are limited by the limiting component, thus fixing the side guard plate 8. Then, one end of the guard rod 9 is inserted into the side guard plate 8 that has just been limited, and the same operation is used to limit and insert the other side guard plate 8 into the insert rod 6. Meanwhile, the other end of the guard rod 9 is inserted into the side guard plate 8 on the other side, and then the guard rod 9 is limited and supported by the two side guard plates 8. Finally, the entire platform is erected. The space enclosed by the top guard plate 7, side guard plates 8 and guard rod 9 protects the operators during operation and ensures their safety. The elevator traction machine is used as the lifting drive equipment, and the top of the car 1 is used as the foundation to build a working platform. The elevator rails, counterweight, hall door and other components are installed without the use of shaft scaffolding. The operation is convenient, time-saving and labor-saving, and improves work efficiency. At the same time, when disassembly is required, it is only necessary to contact the limit component and then control the drive component in the reverse direction, which facilitates subsequent use and installation and reduces subsequent maintenance costs.

[0023] The L-shaped limiting frame 3 has a limiting groove 10 on its inner side, a lower slot 11 on one side of its bottom, and an upper slot 12 on one side of its top. Slider blocks 13 are rotatably mounted on both sides of the splicing column 4 via pins. The sliders 13 are fitted into the limiting grooves 10 and slidably connected to them. The limiting grooves 10 limit the sliders 13, thereby improving the stability of the splicing column 4. A groove 14 is provided on one side of the splicing column 4, and is slidably connected to the support rod 5. The groove 14 limits the support rod 5. A slot 15 is provided on the upper surface of the support rod 5, and is slidably inserted into the insertion rod 6. The slot 15 limits the insertion rod 6, thereby improving the support stability of the top guard plate 7 of the insertion rod 6.

[0024] The drive assembly includes a handwheel 16, which is fixedly connected to one end of a worm gear 17. Both ends of the worm gear 17 are rotatably sleeved in a support seat fixedly connected to the upper surface of the car 1. The support seat stabilizes and limits the worm gear 17, thereby improving its rotational stability. A worm wheel 18 meshes with the lower side of the worm gear 17, and the worm gear 17 and the worm wheel 18 mesh for transmission. The worm wheel 18 is fixedly sleeved in the middle of the connecting shaft 19. Both sides of the connecting shaft 19 are rotatably sleeved in a fixed seat, which ensures the rotational stability of the connecting shaft 19. Both ends of the connecting shaft 19 are fixedly connected to one end of a drive rod 20. The drive rod 20 is rotatably sleeved in a connecting seat 21 fixedly connected to the upper surface of the connecting plate 2. The connecting seat 21 limits the drive rod 20. The other end of the drive rod 20 is rotatably connected to one end of a connecting rod 22. The other end of the connecting rod 22 is fixedly connected to the splicing column 4. The connecting rod 22 is slidably connected to both the lower slot 11 and the upper slot 12. The upper slot 12 and the lower slot 11 limit the connecting rod 22.

[0025] When a working platform needs to be erected on the roof, the handwheel 16 is turned to drive the worm gear 17 to rotate. The worm gear 17 meshes with the worm wheel 18, which in turn drives the connecting shaft 19 to rotate. The connecting shaft 19 then drives the drive rod 20, which is fixedly connected to both ends, to rotate. The drive rod 20 drives the connecting rod 22 to move away from the lower slot 11. The connecting rod 22 then pulls the splicing column 4 to lift. The splicing column 4 rotates under the limiting sliding of the slider 13 and the limiting groove 10. When the connecting rod 22 rotates from the lower slot 11 to the upper slot 12, the splicing column 4 rotates from a horizontal state to a vertical state. At the same time, the self-locking property between the worm wheel 18 and the worm gear 17 ensures the stability of the vertical state of the splicing column 4.

[0026] The side guard plate 8 and the guard rod 9 are installed opposite each other. Several splicing grooves 23 are opened on opposite sides of the side guard plate 8. The splicing grooves 23 and the guard rod 9 are slidably inserted into each other, and the splicing grooves 23 and the guard rod 9 are limited and supported. One side of the guard rod 9 is fixedly connected to one end of the top column 24, which is located at the end of the guard rod 9. The other end of the top column 24 abuts against the support rod 5. One side of the top of the side guard plate 8 is fixedly connected to one end of the connecting rod 25, and the other end of the connecting rod 25 passes through the splicing column 4 and... The through hole 26 on the support rod 5 is slidably inserted into the docking groove 27 on the insertion rod 6. The splicing column 4 has a stepped hole 28 on one side wall away from the support rod 5. The docking rod 25 and the insertion rod 6 have a positioning groove 29 at the insertion end. The limiting component includes a limiting pin 30. One end of the limiting pin 30 is fixedly connected to a pull ring 31. The other end of the limiting pin 30 is slidably inserted into the positioning groove 29. A return spring 32 is fixedly connected between the limiting pin 30 and the stepped hole 28.

[0027] When the splicing column 4 is in a vertical position, first pull out the limiting pin 30 in advance, so that the limiting pin 30 slides out of the stepped hole 28 and stretches the return spring 32. At this time, the side guard plate 8 can be installed. Through the cooperation of the connecting rod 25 fixedly connected to the top of the side guard plate 8 and the through hole 26, the connecting rod 25 slides into the connecting groove 27 opened at the bottom of the insert rod 6, thereby initially limiting the position of the insert rod 6, the support rod 5, the splicing column 4, and the side guard plate 8. Then, by releasing the limiting pin 30, under the reverse elastic force of the return spring 32, the limiting pin 30 moves in the opposite direction and is inserted into the positioning groove 29 opened in the connecting rod 25, further limiting the position of the insert rod 6. The support rod 5, splicing column 4, and side guard plate 8 are fixed together, thereby completing the limitation of both ends of one side guard plate 8. Then, through the sliding insertion of the splicing groove 23 and the guard rod 9, one end of the guard rod 9 is first inserted into the side guard plate 8 that has just been fixed. Then, the other side guard plate 8 is fixed in the same way. At the same time, the other side guard plate 8 is fixed and inserted into the other end of the guard rod 9. Then, the guard rod 9 is fixed by the guard plates 8 on both sides. Finally, the splicing and installation of the entire working platform is completed. The operation is convenient, time-saving and labor-saving, and ensures the safety of the operators. Then, the installation of elevator rails, counterweights, hall doors and other components can be carried out.

[0028] The top guard plate 7 has two fixed hanging rings 33 on both sides of its lower surface. The hanging rings 33 are designed to allow operators to suspend safety ropes on them, thus preventing accidents.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scaffold-free elevator installation platform assembly, comprising a car, characterized in that: The four corners of the upper surface of the car are fixedly connected to the connecting plates, which are arranged in a square shape about the upper surface of the car. The upper side of the connecting plates is provided with splicing components. The splicing assembly includes an L-shaped limiting frame, which is fixedly connected to the connecting plate. A rotatable splicing column is slidably installed inside the L-shaped limiting frame, and a drive assembly for driving the splicing column to rotate is connected to one side of the splicing column. A support rod is slidably connected to the other side of the splicing column. An insert rod is slidably inserted into the upper side of the support rod. A top guard plate is fixedly connected to the top of the insert rod. A side guard plate is set on one side of the bottom of the insert rod. A guard rod is set on the other side of the bottom of the insert rod. The side guard plate and the insert rod are symmetrically arranged about the upper surface of the car. The side guard plate is slidably inserted into the bottom of the insert rod through a limiting component set on the splicing column. Both ends of the guard rod are slidably inserted into the side guard plate. The L-shaped limiting frame has a limiting groove on its inner side, a lower slot on one side of the bottom of the L-shaped limiting frame, an upper slot on one side of the top of the L-shaped limiting frame, and sliders are rotatably installed on both sides of the splicing column via pins. The slider is sleeved in the limiting groove and is slidably connected to the limiting groove; The drive assembly includes a handwheel, which is fixedly connected to one end of a worm gear. Both ends of the worm gear are rotatably sleeved in a support seat fixedly connected to the upper surface of the car. A worm wheel is meshed on the lower side of the worm gear, and the worm wheel is fixedly sleeved in the middle of the connecting shaft. Both ends of the connecting shaft are fixedly connected to one end of the drive rod. The drive rod is rotatably sleeved in the connecting seat fixedly connected to the upper surface of the connecting plate. The other end of the drive rod is rotatably connected to one end of the connecting rod. The other end of the connecting rod is fixedly connected to the splicing column. The connecting rod is slidably connected to both the lower and upper slots.

2. The scaffold-free elevator installation platform assembly according to claim 1, characterized in that: A groove is provided on one side of the splicing column, and the groove is slidably connected to the support rod. A slot is provided on the upper surface of the support rod, and the slot is slidably inserted into the insertion rod.

3. The scaffold-free elevator installation platform assembly according to claim 1, characterized in that: The side guard plate has several splicing slots on opposite sides. The splicing slots and guard rods are slidably inserted into each other. One side of the guard rod is fixedly connected to one end of the top column, and the other end of the top column abuts against the support rod.

4. The scaffold-free elevator installation platform assembly according to claim 3, characterized in that: The top side of the side guard plate is fixedly connected to one end of the connecting rod, and the other end of the connecting rod passes through the through hole opened on the splicing column and the support rod and slides into the connecting groove opened on the insert rod.

5. The scaffold-free elevator installation platform assembly according to claim 4, characterized in that: The splicing column has a stepped hole on one side wall of the far support rod, and a positioning groove is provided at the insertion end of the connecting rod and the insertion rod.

6. The scaffold-free elevator installation platform assembly according to claim 1, characterized in that: The limiting component includes a limiting pin, one end of which is fixedly connected to a pull ring, and the other end of which is slidably inserted into a positioning groove. A return spring is fixedly connected between the limiting pin and the stepped hole.

7. The scaffold-free elevator installation platform assembly according to claim 1, characterized in that: Lifting rings are fixedly connected to both sides of the lower surface of the top guard plate.

Images