Movable type aerial work platform

Abstract

A movable type aerial work platform relates to the technical field of building machinery and comprises two first steel wire ropes arranged in parallel, the two ends of each first steel wire rope are fixedly connected with a steel structure framework in a roof of a construction site respectively, and the two first steel wire ropes are connected with a hanging basket type work platform through sliding mechanisms respectively. At least one first chain block is arranged at the top of the working platform, the first chain block is connected with the steel structure framework on the front side or the rear side of the working platform and used for dragging the working platform to move, and an auxiliary positioning mechanism is arranged at the bottom end of the working platform. The device is simple in structure and convenient to move, the difficulty of aerial operation in the large-span steel structure roof can be remarkably reduced, the safety risk is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction machinery, in particular to a mobile aerial work platform. Background Art

[0002] Compared with traditional concrete buildings, steel structure buildings have the advantages of low cost, large available space, and excellent seismic performance. In recent years, they have been widely used in large-span buildings. However, steel structures have disadvantages such as poor corrosion resistance, heat resistance and fire resistance, so it is necessary to apply anti-rust and fire-retardant coatings on the surface of the steel structure; for the metal roof on the steel structure, when the bottom corrugated steel plate is located under the steel structure purlin, the installation of the corrugated steel plate becomes extremely difficult. In the aerial operations of the above steel structure buildings, due to factors such as the large span and high height of the roof steel structure, the traditional high-altitude construction machinery has high construction costs and low efficiency, and cannot meet the needs of rapid construction of steel structure buildings. For this reason, there is a method of construction by suspending a hanging basket-type work platform through a wire rope, but in this method, the work platform is difficult to move, and it is easy to shake during the suspension construction process, which has certain safety risks and is difficult to construct. Utility Model Content

[0003] The present invention discloses a mobile aerial work platform, which aims to solve the problem described in the background technology section that "the aerial work inside the large-span steel structure adopts the method of hanging basket work platform suspended by wire rope, the work platform is difficult to move, and it is easy to shake during the hanging construction process, which has certain safety risks and is difficult to construct".

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A mobile aerial work platform comprises two first steel wire ropes arranged in parallel with each other, the two ends of the first steel wire ropes are respectively fixedly connected to the steel structure skeleton inside the roof of the construction site, the two first steel wire ropes are respectively connected to the hanging basket type work platform through sliding mechanisms, at least one first hand chain hoist is arranged on the top of the work platform, the first hand chain hoist is connected to the steel structure skeleton on the front side or the rear side of the work platform, and is used to drag the work platform to move, and an auxiliary positioning mechanism is arranged at the bottom of the work platform.

[0006] Preferably, a support arm is fixedly provided at the front end and / or rear end of the working platform, a first hand chain hoist is fixedly provided at the top end of the support arm, and the end of the lifting chain of the first hand chain hoist is connected to the steel structure skeleton.

[0007] Preferably, the sliding mechanism includes four pull rods longitudinally arranged on the top of the working platform and distributed in a rectangular shape, the top of the pull rods is fixedly connected to a sliding sleeve, the first steel wire rope passes through the sliding sleeve and is slidably connected to the sliding sleeve, and the working platform spans the bottom of the two first steel wire ropes.

[0008] Preferably, the inner surface of the sliding sleeve is provided with a plurality of ball grooves arranged in an array, balls are slidably connected in the ball grooves, and the first steel wire rope is slidably matched with the balls.

[0009] Preferably, the auxiliary positioning mechanism includes two groups of supporting leg structures, which are cross-arranged with each other, the top of the supporting leg structure is hinged to the bottom of the working platform, and the bottom of the supporting leg structure is connected to the end of the working platform through a second hand winch.

[0010] Preferably, the second hand chain hoist is fixedly connected to the left and right ends of the working platform respectively, and is connected to the ends of the corresponding supporting leg structures through a lifting chain. Guide wheels are also provided at the bottom of the left and right ends of the working platform, and the lifting chain of the second hand chain hoist is meshingly connected to the guide wheels.

[0011] Preferably, the supporting leg structure includes a first supporting leg and a second supporting leg arranged crosswise, and the first supporting leg and the second supporting leg each include two supporting rods arranged in parallel, and a cross bar is respectively connected between the top and bottom ends of the two supporting rods, and the two supporting rods of the first supporting leg are respectively located on the inner sides of the two supporting rods of the second supporting leg.

[0012] Preferably, the two support rods of the first support leg and the two support rods of the second support leg are respectively provided with connecting ears on the side facing the ground at the bottom, and when the bottom ends of the first support leg and the second support leg are against the ground, the two connecting ears are connected by a second steel wire rope.

[0013] Preferably, a ladder structure is formed by adding a cross bar on the inner side of the first supporting leg, and an entrance and exit are provided at a position opposite to the top of the first supporting leg at the bottom of the working platform, and a protective door is provided at the entrance and exit.

[0014] The beneficial effects of this new mobile aerial work platform are:

[0015] The novel structure is simple and easy to move, which can significantly reduce the difficulty of aerial operations inside large-span steel structure roofs, reduce safety risks and improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments, which constitute a part of the specification and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation to the present invention.

[0017] Figure 1 , a schematic diagram of the side structure of the novel;

[0018] Figure 2, a schematic diagram of the top view of the structure of the novel;

[0019] Figure 3 , a schematic cross-sectional view of the novel structure along the AA direction;

[0020] Figure 4 , a schematic cross-sectional view of the novel sliding sleeve;

[0021] Figure 5 , a schematic diagram of the structure of the novel auxiliary positioning mechanism when in use;

[0022] Figure 6 , a schematic diagram showing that the first supporting leg of the novel structure is improved into a ladder structure;

[0023] 1—steel structure frame, 2—first steel wire rope, 3—sliding sleeve, 31—ball bearing, 4—working platform, 5—pulling rod, 6—second hand chain hoist, 7—first supporting leg, 8—second supporting leg, 9—supporting arm, 10—first hand chain hoist, 11—lifting chain, 12—entrance and exit, 13—guide wheel, 14—cross bar, 15—second steel wire rope. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The following embodiments may be understood as explaining a local structure of the present invention individually, or may be understood as explaining a larger structure of the present invention through a combination of multiple embodiments.

[0026] Example 1

[0027] A mobile aerial work platform, such as Figure 1-6 As shown, it includes two first steel wire ropes 2 arranged in parallel with each other, and the two ends of the first steel wire ropes 2 are respectively fixedly connected to the steel structure skeleton 1 inside the roof of the construction site, and the two first steel wire ropes 2 are respectively connected to the hanging basket type working platform 4 through a sliding mechanism. At least one first hand winch 10 is provided on the top of the working platform 4, and the first hand winch 10 is connected to the steel structure skeleton 1 on the front side or the rear side of the working platform 4, and is used to drag the working platform 4 to move. The bottom end of the working platform 4 is provided with an auxiliary positioning mechanism.

[0028] Since the span of the steel structure roof is very large, the new work platform also adopts a large-span hanging basket structure to provide better construction convenience. The work platform is set along the width of the roof. Every time a position is completed, it moves forward a certain distance. The first hand chain hoist is used for the workers on the work platform to pull, so that the work platform moves along the direction of the first wire rope. The auxiliary positioning mechanism is used to assist the positioning of the work platform to avoid shaking during the construction process.

[0029] Example 2

[0030] like Figure 1-3 As shown, a support arm 9 is fixedly provided at the front end and / or rear end of the working platform 4, a first hand chain hoist 10 is fixedly provided at the top end of the support arm 9, and the end of the lifting chain of the first hand chain hoist 10 is connected to the steel structure skeleton 1.

[0031] When the operation starts, the working platform is located at one end of the first steel wire rope and gradually moves from the starting position toward the other end of the first steel wire rope.

[0032] Example 3

[0033] like Figure 1-4 As shown, the sliding mechanism includes four pull rods 5 which are longitudinally arranged on the top of the working platform and distributed in a rectangular shape. The top of the pull rods 5 is fixedly connected to a sliding sleeve 3. The first steel wire rope 2 passes through the sliding sleeve 3 and is slidably connected to the sliding sleeve 3. The working platform 4 spans the bottom of the two first steel wire ropes 2.

[0034] like Figure 3 , 4 As shown, the inner surface of the sliding sleeve 3 is provided with a plurality of ball grooves arranged in an array, and balls 31 are slidably connected in the ball grooves. The first steel wire rope slidably cooperates with the balls 31 to reduce the movement resistance of the working platform.

[0035] Example 4

[0036] like Figure 1-3 As shown in Figures 5 and 6, the auxiliary positioning mechanism includes two groups of supporting leg structures, which are arranged crosswise with each other, the top of the supporting leg structure is hinged to the bottom end of the working platform 4, and the bottom end of the supporting leg structure is connected to the end of the working platform 4 through a second hand winch 6.

[0037] like Figure 1-3As shown in Figures 5 and 6, the second hand winch 6 is fixedly connected to the left and right ends of the working platform 4, respectively. The second hand winch 6 is connected to the ends of the corresponding supporting leg structures through a lifting chain to pull up or lower the supporting leg structures. When pulling up, it is convenient to move the working platform, and when lowering, the working platform is positioned. Guide wheels 13 are also provided at the bottom of the left and right ends of the working platform 4, and the lifting chain of the second hand winch 6 is meshed and connected with the guide wheels 13.

[0038] like Figure 5 As shown, since the roof is a large-span structure, the span of the new hanging basket type work platform is also large, so the length of the bottom support leg structure can meet the requirement: after lowering the support leg structure, the work platform can be assisted in positioning. However, if the first steel wire rope is not used for suspension and only the support leg structure is used, it will lead to high strength requirements for the support leg structure, inconvenience in moving the work platform, and difficulty in orienting the work platform. Therefore, the new model sets the support leg structure as an auxiliary positioning mechanism, and the work platform relies on the suspension of the first steel wire rope to bear its weight. After the support leg structure is connected to the ground, it plays a role in preventing the work platform from shaking, thereby reducing the construction difficulty and safety risks.

[0039] Example 5

[0040] like Figure 1 , 3 As shown in Figures 6, the support leg structure includes a first support leg 7 and a second support leg 8 which are cross-arranged. The first support leg 7 and the second support leg 8 each include two support rods which are parallely arranged. A cross bar 14 is respectively connected between the top and bottom ends of the two support rods. The two support rods of the first support leg are respectively located on the inner sides of the two support rods of the second support leg, so that the first support leg 7 and the second support leg 8 will not interfere with each other when unfolded.

[0041] Example 6

[0042] like Figure 3 , 5 As shown, the two support rods of the first support leg 7 and the two support rods of the second support leg 8 are respectively provided with connecting ears on the side facing the ground at the bottom. When the bottom ends of the first support leg 7 and the second support leg 8 are against the ground, the two connecting ears are connected by a second steel wire rope 15 to prevent the first support leg and the second support leg from further rotating, thereby achieving the positioning effect of the working platform.

[0043] Example 7

[0044] like Figure 3 , 5 As shown in FIG. 6 , the inner side of the first supporting leg 7 is provided with a cross bar 14 to form a ladder structure. Figure 2As shown, an entrance 12 is provided at the bottom of the working platform 4 opposite to the top of the first supporting leg 7, and the entrance 12 is provided with a protective door (not shown in the figure).

[0045] In this embodiment, in order to facilitate workers to go up and down, the first supporting leg is set as a ladder structure, and the workers climb the ladder structure to enter and exit the working platform through the entrance and exit.

Claims

1. A mobile aerial work platform, characterized by: It comprises two first steel wire ropes arranged in parallel with each other, the two ends of the first steel wire ropes are respectively fixedly connected to the steel structure skeleton inside the roof of the construction site, the two first steel wire ropes are respectively connected to the hanging basket type working platform through sliding mechanisms, at least one first hand winch is arranged on the top of the working platform, the first hand winch is connected to the steel structure skeleton on the front side or the rear side of the working platform, and is used to drag the working platform to move, and an auxiliary positioning mechanism is arranged at the bottom end of the working platform.

2. A mobile aerial work platform as claimed in claim 1, characterized in that: A support arm is fixedly provided at the front end and / or rear end of the working platform, a first hand chain hoist is fixedly provided at the top end of the support arm, and the end of the lifting chain of the first hand chain hoist is connected to the steel structure frame.

3. A mobile aerial work platform as claimed in claim 2, characterized in that: The sliding mechanism includes four pull rods longitudinally arranged on the top of the working platform and distributed in a rectangular shape. The top of the pull rods is fixedly connected to a sliding sleeve. The first steel wire rope passes through the sliding sleeve and is slidably connected to the sliding sleeve. The working platform spans the bottom of the two first steel wire ropes.

4. A mobile aerial work platform as claimed in claim 3, characterized in that: The inner surface of the sliding sleeve is provided with a plurality of ball grooves arranged in an array, balls are slidably connected in the ball grooves, and the first steel wire rope is slidably matched with the balls.

5. A mobile aerial work platform as claimed in claim 4, characterized in that: The auxiliary positioning mechanism includes two groups of supporting leg structures, which are arranged crosswise with each other, the top of the supporting leg structure is hinged to the bottom of the working platform, and the bottom of the supporting leg structure is connected to the end of the working platform through a second hand winch.

6. A mobile aerial work platform as claimed in claim 5, characterized in that: The second hand chain hoist is fixedly connected to the left and right ends of the working platform respectively. The second hand chain hoist is connected to the ends of the corresponding supporting leg structures through a lifting chain. Guide wheels are also provided at the bottom of the left and right ends of the working platform. The lifting chain of the second hand chain hoist is meshed and connected with the guide wheels.

7. A mobile aerial work platform as claimed in claim 6, characterized in that: The supporting leg structure includes a first supporting leg and a second supporting leg arranged crosswise, and the first supporting leg and the second supporting leg each include two supporting rods arranged in parallel, and a cross bar is respectively connected between the top and bottom ends of the two supporting rods, and the two supporting rods of the first supporting leg are respectively located on the inner side of the two supporting rods of the second supporting leg.

8. A mobile aerial work platform as claimed in claim 7, characterized in that: The two support rods of the first support leg and the two support rods of the second support leg are respectively provided with connecting ears on the side facing the ground at the bottom. When the bottom ends of the first support leg and the second support leg are against the ground, the two connecting ears are connected by a second steel wire rope.

9. A mobile aerial work platform as claimed in claim 8, characterized in that: A ladder structure is formed by adding a cross bar inside the first supporting leg, and an entrance and exit are arranged at a position opposite to the top of the first supporting leg at the bottom of the working platform, and a protective door is arranged at the entrance and exit.

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