Lift with protection function for construction

Abstract

The application provides a building construction elevator with a protection function, and relates to the technical field of building construction. The building construction elevator with the protection function comprises a cage, a guardrail and a protection plate. The cage is of a frame structure and has a bottom plate and a top plate. Two slide rails are symmetrically installed at the edges of one side of the cage. A plurality of steps are slidably installed inside the two slide rails. The plurality of steps are connected by connecting ropes to form a ladder for workers to climb. The plurality of steps are connected by the connecting ropes to form the ladder. A double-head motor is arranged at the top of the protection plate to install a first take-up wheel and a second take-up wheel. Since the transmission ratio of the driving gear and the driven gear is different, when the first pulling rope on the first take-up wheel stretches the ladder to the top of the slide rail, the second pulling rope on the second take-up wheel lifts the steps at the bottom of the ladder to make the plurality of steps aggregate into a partition plate to protect the workers and building materials on the top of the cage.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a lifting platform with protective functions for building construction. Background Technology

[0002] Construction hoists, also known as freight hoists, are generally larger and have a higher load capacity than passenger hoists, ranging from 2,000 to 5,000 kilograms, and most are traction type. Freight hoists typically have simple interiors to prevent damage during transport, and many have manually operated doors. There is a very small type of freight hoist, sometimes called a "dumb waiter," specifically designed for transporting food and dishes in multi-story restaurants. These types of service hoists are also used in multi-story libraries to transport books. In construction sites and warehouses, rack and pinion hoists are sometimes used for transporting goods and workers. These hoists do not have a lift shaft and use a rack and pinion system to support and move the car.

[0003] However, in the above-mentioned general technology, when transporting building materials, the elevators often place the building materials on the car. However, the protection effect of the top of the car of many existing elevators is not good enough. Workers or building materials may fall on it, which is not safe enough. Summary of the Invention

[0004] The purpose of this invention is to provide a construction hoist with protective functions, aiming to solve the problem that the protection effect of the top of the car of a construction hoist in general technology is not good enough.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: the construction hoist with protective function includes: a car, a guardrail, and a protective plate. The car has a frame structure with a bottom plate and a top plate. Two slide rails are symmetrically installed on one edge of the car. Multiple pedals are slidably installed inside the two slide rails. The multiple pedals are interconnected by connecting ropes to form a ladder for workers to climb. The guardrail is fixedly installed on the car and includes horizontal bars and vertical bars. One side of the guardrail has an opening for workers to climb onto the car. The protective plate... A double-headed motor is fixedly installed on one side of the top of the guardrail. Each end of the double-headed motor is fixedly mounted with a first take-up reel via a first rotating shaft. A first lifting rope for lifting the ladder as a whole is wound around each of the first take-up reels. A second rotating shaft for mounting a second take-up reel is also installed on the top of the guardrail. The first rotating shaft drives the second rotating shaft through a gear set. A partition for lifting the bottom pedals is wound around the second take-up reel so that multiple pedals can converge into a partition for protecting the gaps in the guardrail.

[0006] The beneficial effects are as follows: by installing two slide rails on one side of the car to install multiple steps, and connecting the multiple steps to form a ladder with connecting ropes, and installing a double-headed motor on the top of the protective plate to install the first and second take-up reels, due to the different transmission ratios of the driving gear and the driven gear, when the first lifting rope on the first take-up reel stretches the ladder to the top of the slide rail, the second lifting rope on the second take-up reel lifts the steps at the bottom of the ladder, causing the multiple steps to converge into a partition, thereby protecting workers and building materials on the top of the car, achieving a good protective effect.

[0007] A further technical solution of the present invention is that a protective baffle is installed on the top of the car to prevent building materials or construction tools placed on the top of the car from falling off.

[0008] A further technical solution of the present invention is that the protective baffle is provided with a plurality of mounting grooves, and mounting shafts for mounting the mounting mechanism are fixedly installed at both ends of the inner wall of the mounting grooves. The mounting mechanism can be connected to the crossbar to install and fix the protective baffle.

[0009] A further technical solution of the present invention is that the installation mechanism includes a first installation component and a second installation component. The first installation component includes an installation column, which is rotatably mounted on the outer surface of the installation shaft. A pinching plate and a clamping plate are fixedly installed on the outer surface of the installation column. The included angle between the pinching plate and the clamping plate is an obtuse angle. The clamping plate is an arc-shaped plate, and the inner diameter of the clamping plate is slightly larger than the outer diameter of the crossbar.

[0010] A further technical solution of the present invention is that the second mounting component has a structure that is substantially the same as that of the first mounting component. The first mounting component has a first groove in the middle and the second mounting component has a second groove in the middle. The first groove and the second groove are staggered, so that the middle of the first mounting component and the second mounting component intersect, so that the first mounting component and the second mounting component can be installed on a mounting shaft at the same time.

[0011] A further technical solution of the present invention is that a plurality of spring plates are fixedly installed between the first mounting component and the second mounting component, and the spring plates can bring the clamps of the two mounting components closer to each other so as to facilitate their installation on the crossbar.

[0012] The beneficial effects are: by opening multiple mounting slots inside the protective baffle to install the installation mechanism, workers can easily install and disassemble the protective baffle as needed, thereby protecting workers, building materials or construction tools on the top of the car and further improving the protection effect. Attached Figure Description

[0013] Figure 1This is a structural schematic diagram of the first form of the lifting mechanism in a specific embodiment of the present invention.

[0014] Figure 2 This is the present invention. Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0015] Figure 3 This is a schematic diagram of the structure of the present invention.

[0016] Figure 4 This is a structural schematic diagram of the second form of the lifting mechanism in a specific embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of the drive mechanism in a specific embodiment of the present invention.

[0018] Figure 6 This is a schematic diagram of the pedal structure in a specific embodiment of the present invention.

[0019] Figure 7 This is a structural schematic diagram of the installation mechanism in its installation state in a specific embodiment of the present invention.

[0020] Figure 8 This is a schematic diagram of the structure of the protective baffle in a specific embodiment of the present invention.

[0021] Figure 9 This is a schematic diagram of the installation mechanism in a specific embodiment of the present invention.

[0022] Figure 10 This is a schematic diagram of the structure of the first mounting component in a specific embodiment of the present invention.

[0023] In the diagram: 1-Mounting frame, 11-Traction mechanism, 12-Rack, 2-Lifting mechanism, 21-Car, 211-Slide rail, 212-Pedal, 2121-Pedal body, 2122-Connecting bar, 2123-Slide bar, 213-Safety net plate, 22-Guardrail, 221-Horizontal bar, 222-Vertical bar, 2221-First pulley, 23-Safety plate, 231-Dual-head motor, 232-First rotating shaft, 233-First mounting plate, 2321-First take-up reel, 2322-First lifting rope, 2323-Drive gear, 234-Second mounting plate, 2 341-Second rotating shaft, 2342-Third rotating shaft, 2343-Second pulley, 2344-Driven gear, 235-Second take-up reel, 2351-Second lifting rope, 3-Drive mechanism, 31-Drive motor, 32-Transmission gear, 33-Roller, 4-Protective baffle, 41-Mounting groove, 411-Mounting shaft, 42-Mounting mechanism, 421-First mounting assembly, 4211-Mounting column, 4212-Kneading plate, 4213-Clamping plate, 4214-First groove, 422-Second mounting assembly, 4221-Second groove, 423-Spring sheet. Detailed Implementation

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1-4 As shown, a construction hoist with protective function includes a mounting frame 1 and a drive mechanism 3 that is slidably mounted on the outer surface of the mounting frame 1 to install the hoist body 2. A traction mechanism 11 for lifting the hoist body 2 is fixedly mounted on the top of the mounting frame 1, and a rack 12 for installing the drive mechanism 3 is fixedly mounted on the side of the mounting frame 1 close to the hoist body 2, so that the hoisting mechanism 2 can slide up and down close to the building body along the vertical direction of the mounting frame 1.

[0026] like Figures 1-4 As shown, the main body 2 of the elevator includes a car 21. A guardrail 22 for protecting workers is fixedly installed on the top of the car 21. A protective plate 23 for protecting workers on the car 21 is fixedly installed on the top of the guardrail 22. Protective baffles 4 are installed on the left and rear sides of the guardrail 22. The protective baffles 4 are used to prevent building materials or construction tools placed on the top of the car 21 from falling.

[0027] like Figures 1-6 As shown, the car 21 has a frame structure with a floor and a top plate, both of which allow workers to stand and work. The drive mechanism 3 is fixedly installed on the front of the car 21. Protective net panels 213 are fixedly installed on the rear, left, and right sides of the car 21, and one of the protective net panels 213 can be opened to allow workers to enter. Two slide rails 211 are symmetrically installed on the two edges of the right side of the car 21. The two slide rails 211 extend from the bottom of the car 21 to the bottom of the protective plate 23. Multiple pedals 212 are slidably installed inside the slide rails 211. The top and bottom of the slide rails 211 are sealed to prevent the pedals from being touched. 212 slides out of the slide rail 211. Multiple pedals 212 are connected to each other by connecting ropes (not shown in the figure) to form a ladder, so that workers can climb to the top of the car 21 for construction or maintenance. The pedal 212 includes a pedal body 2121. Connecting strips 2122 are fixedly installed at both ends of the pedal body 2121. Sliding strips 2123 are fixedly installed at the ends of the two connecting strips 2122 away from the pedal body 2121. The two sliding strips 2123 are slidably installed inside the two slide rails 211 to limit the pedal 212 and prevent it from shaking and affecting the worker's climbing.

[0028] like Figures 1-4As shown, the guardrail 22 is located on the front, back and left sides of the top of the roof slab, with a gap on the right side to facilitate workers to climb onto the roof slab and to place building materials or construction tools on the roof slab for transportation. The guardrail 22 has multiple interconnected horizontal bars 221 and vertical bars 222, and the horizontal bars 221 are cylindrical. The protective baffle 4 is interconnected with the horizontal bars 221 through the installation mechanism 42.

[0029] A dual-head motor 231 is fixedly installed on the top left side of the protective plate 23. A first rotating shaft 232 is fixedly installed on each of the two output ends of the dual-head motor 231. A first mounting plate 233 for reinforcing the first rotating shaft 232 is fixedly installed on both ends of the top left side of the protective plate 23. A first take-up wheel 2321 is fixedly installed on the outer surface of the two first rotating shafts 232. A first pulley 2221 is fixedly installed on the opposite inner side of the right vertical bar 222 of the guardrail 22. A first lifting rope 2322 is wound on each of the two first take-up wheels 2321. One end of the two first lifting ropes 2322 is fixedly connected to the two connecting strips 2122 of the topmost pedal 212 via the first pulley 2221, so that the ladder composed of multiple pedals 212 can be stretched upward by the dual-head motor 231 to reach the top of the slide rail 211.

[0030] Two sets of second mounting plates 234 are fixedly installed on the left and right sides of the top of the protective plate 23, respectively. Each set of second mounting plates 234 consists of two plates. The second rotating shaft 2341 is rotatably installed inside the second mounting plate 234 on the left side. A second take-up wheel 235 is fixedly installed on the second rotating shaft 2341. A third rotating shaft 2342 for installing a second pulley 2343 is rotatably installed inside the second mounting plate 234 on the right side. A second lifting rope 2351 is wound around the outer surface of the second take-up wheel 235. The second lifting rope 2351 is fixedly connected to the bottom pedal 212 via the second pulley 2343. The second lifting rope 2351 passes through the other pedals 212 so that the second lifting rope 2351 can lift the bottom pedal 212, so that all the pedals 212 gather together to form a partition that protects the right side of the top of the car 21.

[0031] A drive gear 2323 is fixedly installed on the outer surface of the first rotating shaft 232, and a driven gear 2344 is fixedly installed on the outer surface of the second rotating shaft 2341. The drive gear 2323 and the driven gear 2344 mesh with each other, and the transmission ratio between the drive gear 2323 and the driven gear 2344 is 1:2. This allows the first lifting rope 2322 to pull the ladder composed of multiple pedals 212 upwards to the top of the slide rail 211, while the second lifting rope 2351 gathers the multiple pedals 212 together to form a partition, thereby protecting the workers, building materials, or construction tools on the top of the car 21.

[0032] like Figure 5As shown, the drive mechanism 3 is fixedly connected to the traction rope of the traction mechanism 11, and the drive mechanism 3 has a drive motor 31. The output end of the drive motor 31 is fixedly installed with a transmission gear 32 that meshes with the rack 12. The drive mechanism 3 also has a roller 33 that abuts against the other end of the rack 12, so that the drive motor 31 can drive the transmission gear 32 to drive the elevator 2 to rise as a whole.

[0033] like Figures 7-10 As shown, the protective baffle 4 has multiple mounting slots 41 inside. Both ends of the inner wall of the mounting slot 41 are fixedly mounted with mounting shafts 411 for mounting the mounting mechanism 42. The mounting mechanism 42 includes a first mounting component 421 and a second mounting component 422. The first mounting component 421 includes a mounting post 4211. The mounting post 4211 is rotatably mounted on the outer surface of the mounting shaft 411. A pinching plate 4212 and a clamping plate 4213 are fixedly mounted on the outer surface of the mounting post 4211. The included angle between the pinching plate 4212 and the clamping plate 4213 is an obtuse angle. The clamping plate 4213 is an arc-shaped plate, and the inner diameter of the clamping plate 4213 is slightly larger than the outer diameter of the crossbar 221.

[0034] The second mounting component 422 has a structure that is roughly the same as that of the first mounting component 421. The first mounting component 421 has a first groove 4214 in the middle, and the second mounting component 422 has a second groove 4221 in the middle. The first groove 4214 and the second groove 4221 are staggered, so that the middle of the first mounting component 421 and the second mounting component 422 intersect, so that the first mounting component 421 and the second mounting component 422 can be installed on a mounting shaft 411 at the same time. A plurality of spring plates 423 are fixedly installed between the first mounting component 421 and the second mounting component 422. The spring plates 423 are V-shaped, and under the action of the spring plates 423, the clamps of the two mounting components are close to each other, and can be moved away from each other by pressing the two pinch plates so as to install them on the crossbar 221, thereby installing and fixing the protective baffle 4 to protect workers, building materials or construction tools on the top of the car 21.

[0035] During use, when workers need to climb into the car 21 for construction or to place building materials and tools, they can climb into the car 21 via the ladder formed by the footboards 212. Then, the dual-head motor 231 is started to drive the two first take-up reels 2321 to pull the ladder up as a whole via the first lifting ropes 2322 that are wound around it. At the same time, the dual-head motor 231 can drive the second take-up reel 235 on the second rotating shaft 2341 via the gear set to lift the footboards 212 at the bottom of the ladder via the second lifting ropes 2351, so that they are gathered into a partition to protect the workers, building materials or construction tools on the top of the car 21.

[0036] In this invention, multiple pedals 212 are installed on one side of the car 21 by two slide rails 211, and the multiple pedals 212 are connected to form a ladder by connecting ropes. A dual-head motor 231 is installed on the top of the protective plate 23 to install the first take-up reel 2321 and the second take-up reel 235. Since the transmission ratio of the driving gear 2323 and the driven gear 2344 is different, when the first lifting rope 2322 on the first take-up reel 2321 stretches the ladder to the top of the slide rail 211, the second lifting rope 2351 on the second take-up reel 235 lifts the pedals 212 at the bottom of the ladder, so that the multiple pedals 212 are aggregated into a partition to protect the workers and building materials on the top of the car 21.

Claims

1. A construction hoist with safety features, characterized in that, include: The car (21) is a frame structure with a bottom plate and a top plate. Two slide rails (211) are symmetrically installed on one side edge of the car (21). Multiple pedals (212) are slidably installed inside the two slide rails (211). The multiple pedals (212) are connected to each other by connecting ropes (213) to form a ladder for workers to climb. The guardrail (22) is fixedly installed on the car (21). The guardrail (22) includes a horizontal bar (221) and a vertical bar (222), and one side of the guardrail (22) has a notch for workers to climb onto the car (21). A protective plate (23) is fixedly installed on the top of the guardrail (22). A double-headed motor (231) is fixedly installed on one side of the top of the protective plate (23). Both ends of the double-headed motor (231) are fixedly installed with a first take-up wheel (2321) through a first rotating shaft (232). A first lifting rope (2322) for lifting the ladder as a whole is wound around the first take-up wheel (2321). A second rotating shaft (2341) for installing a second take-up wheel (235) is also installed on the top of the protective plate (23). The first rotating shaft (232) drives the second rotating shaft (2341) through a gear set. A partition for lifting the bottom pedal (212) is wound around the second take-up wheel (235) so that multiple pedals (212) can be aggregated into a partition for protecting the gap in the guardrail (22). The drive gear (2323) and the driven gear (2344) have different transmission ratios, so that when the first lifting rope (2322) on the first take-up reel (2321) stretches the ladder to the top of the slide rail (211), the second lifting rope (2351) on the second take-up reel (235) lifts the pedals (212) at the bottom of the ladder, causing multiple pedals (212) to converge into a partition.

2. The construction hoist with protective function according to claim 1, characterized in that, The car (21), guardrail (22) and protective plate (23) together form the elevator body (2). The elevator body (2) is slidably installed on the mounting frame (1), and the elevator body (2) can slide up and down along the vertical direction of the mounting frame (1) in close contact with the building body through the drive mechanism (3).

3. A construction hoist with protective function according to claim 1, characterized in that, The top of the car (21) is equipped with a protective baffle (4) to prevent building materials or construction tools placed on the top of the car (21) from falling.

4. A construction hoist with protective function according to claim 3, characterized in that, The protective baffle (4) has multiple mounting slots (41) inside. Both ends of the inner wall of the mounting slot (41) are fixedly installed with mounting shafts (411) for installing the mounting mechanism (42). The mounting mechanism (42) can be connected to the crossbar (221) to install and fix the protective baffle (4).

5. A construction hoist with protective function according to claim 4, characterized in that, The installation mechanism (42) includes a first installation component (421) and a second installation component (422). The first installation component (421) includes an installation column (4211), which is rotatably mounted on the outer surface of the installation shaft (411). A pinching plate (4212) and a clamping plate (4213) are fixedly installed on the outer surface of the installation column (4211). The included angle between the pinching plate (4212) and the clamping plate (4213) is an obtuse angle. The clamping plate (4213) is an arc-shaped plate, and the inner diameter of the clamping plate (4213) is slightly larger than the outer diameter of the crossbar (221).

6. A construction hoist with protective function according to claim 5, characterized in that, The second mounting component (422) has the same structure as the first mounting component (421). The first mounting component (421) has a first groove (4214) in the middle, and the second mounting component (422) has a second groove (4221) in the middle. The first groove (4214) and the second groove (4221) are staggered, so that the first mounting component (421) and the second mounting component (422) intersect in the middle, so that the first mounting component (421) and the second mounting component (422) can be installed on a mounting shaft (411) at the same time.

7. A construction hoist with protective function according to claim 5, characterized in that, A plurality of spring plates (423) are fixedly installed between the first mounting component (421) and the second mounting component (422). The spring plates (423) can bring the clamps of the two mounting components closer to each other so as to install them on the crossbar (221).

8. A construction hoist with protective function according to claim 2, characterized in that, The top of the mounting frame (1) is fixedly mounted with a traction mechanism (11) for lifting the elevator body (2), and a rack (12) for mounting the drive mechanism (3) is fixedly mounted on the side of the mounting frame (1) near the elevator body (2).

9. A construction hoist with protective function according to claim 2, characterized in that, The drive mechanism (3) is fixedly installed on one side of the elevator body (2). The drive mechanism (3) is fixedly connected to the traction rope of the traction mechanism (11). The drive mechanism (3) has a drive motor (31). The output end of the drive motor (31) is fixedly installed with a transmission gear (32) that meshes with the rack (12). The drive mechanism (3) also has a roller (33) that abuts against the other end of the rack (12). The drive motor (31) can drive the transmission gear (32) to drive the elevator (2) to rise as a whole.

10. A construction hoist with safety function according to any one of claims 1-7, characterized in that, The car (21) is fixedly equipped with protective net panels (213) on the rear, left and right sides, and one of the protective net panels (213) can be opened to allow workers to enter.

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