Climbing and protection method of mobile climbing operation vehicle in limited area

Abstract

A climbing and protecting method for a movable climbing operation vehicle in a limited area is characterized by comprising the following steps that a, the climbing vehicle is parked and locks a hydraulic system, the bottom layer of the climbing vehicle is a fixed steel frame enclosure cage (6) with the rectangular bottom face, and b, a second-layer fixed steel frame of the climbing vehicle is arranged above the bottom layer; and c, the third-layer movable steel frame of the ladder truck is arranged above the second-layer fixed steel frame, and the lower part of the protective vertical rod is connected with a horizontal rod of the fixed steel frame through a buckle (2), so that an expansion device for climbing and protection of the ladder truck is formed. The climbing and protection method for the movable climbing operation vehicle in the limited area has the advantages that the steel pipe erecting structure is simple, manufacturing is convenient, the moving frequency of the climbing vehicle is reduced, operators are prevented from climbing over the climbing vehicle, and the falling risk is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of house construction and installation engineering, and specifically relates to a method for a mobile climbing work vehicle to climb and protect in a restricted area. Background Art

[0002] Generally, in large-space structural projects such as large exhibition halls, the main structure has a large number of steel structures with large spans and irregular shapes, metal roofs, and curtain walls that form suspended connection points, arc-shaped beam gaps and other restricted areas. Traditional aerial work platforms are difficult to cover irregular areas due to their fixed size and lack of expansion interfaces. Operators need to lean over to operate or frequently move the equipment, which increases safety risks and reduces efficiency. Existing temporary expansion solutions mostly rely on welding or bolting auxiliary pedals, which have problems such as cumbersome disassembly and assembly, poor adaptability, and increased platform load. Therefore, there is an urgent need for a mobile aerial work vehicle that is lightweight, quickly disassembled and assembled, and adaptable to complex scenarios to provide a method for climbing and protecting in restricted areas. Summary of the Invention

[0003] The purpose of the present invention is to provide a safe and reliable method for a mobile aerial work vehicle to ascend and protect in a restricted area.

[0004] To achieve the above objectives, the technical solution of the present invention is: A method for climbing and protecting a mobile aerial work vehicle in a restricted area, characterized by comprising the following steps: a. The aerial platform is parked and locked with a hydraulic system. The bottom layer of the aerial platform is a fixed steel frame cage with a rectangular bottom surface. The steel frame is placed horizontally at the working end of the platform to detect the levelness of the bottom surface. There are footboards around the bottom of the bottom layer. b. The second-layer fixed steel frame of the aerial platform is set above the bottom layer, and the second-layer steel frame serves as a guardrail; a movable springboard is provided, and hooks are provided at both ends of the springboard so that the springboard can be hooked on the upper frame of the bottom layer and used as a standing platform for workers; c. The third-layer movable steel frame of the aerial platform is set above the second-layer fixed steel frame. According to the restricted area scenario, it is designed to use four protective horizontal bars and four protective vertical bars, which are movably connected to form a protective fence through quick-plug connectors set on the protective vertical bars to achieve rapid installation and disassembly; among them: the lower part of the protective vertical bar is connected to the horizontal bar of the fixed steel frame through a buckle, achieving the expansion device of the aerial platform for climbing and protection.

[0005] The mobile aerial work vehicle of the present invention can be further implemented by adopting the following technical measures to climb and protect in a restricted area.

[0006] The aforementioned method, wherein the horizontality error is ≤3°.

[0007] The aforementioned method, wherein the springboard is a rectangular punched springboard.

[0008] In the aforementioned method, the quick-connect connector is a steel pipe quick-connect connector, the insertion depth of the quick-connect connector is ≥40 mm, and after insertion, it is manually rotated 90° to lock.

[0009] In the aforementioned method, a spring locking mechanism is provided inside the quick-connect connector, which automatically locks after insertion and requires pressing an unlocking button for disassembly.

[0010] In the aforementioned method, the protective crossbar is a standard galvanized steel pipe of φ30*3.6mm.

[0011] In the aforementioned method, the protective pole is a standard galvanized steel pipe of φ30*3.6mm.

[0012] After adopting the above technical solution, the mobile climbing work vehicle of the present invention has the following advantages in climbing and protecting in restricted areas: 1. The steel pipe erection structure is simple and easy to manufacture; 2. Reduce the frequency of aerial platform movement; 3. Prevent workers from climbing over aerial platforms to reduce the risk of falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the expansion device for climbing and protecting the aerial platform according to an embodiment of the present invention.

[0014] In the picture: 1 springboard, 2 clips, 3 quick connectors, 4 protective cross bars, 5 protective rods, 6 cages, 7 footboards. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the embodiments and the accompanying drawings.

[0016] Example 1 The mobile aerial work vehicle of the present invention is suitable for use in restricted areas such as installation / repair of steel structures in venues, high-altitude maintenance of industrial equipment, and construction of building curtain walls. The mobile aerial work vehicle is adapted to have standardized interface arm-type and scissor-type aerial work vehicles on the edge of the platform.

[0017] Please refer to Figure 1 The mobile climbing work vehicle climbing and protecting method in a restricted area of the present invention comprises the following steps: a. The climbing vehicle is parked and locked with a hydraulic system. The bottom layer of the climbing vehicle is a fixed steel frame cage 6 with a rectangular bottom surface. The steel frame is placed horizontally at the working end of the vehicle body to detect the levelness of the bottom surface. The bottom of the bottom layer is surrounded by footboards 7; b. The second-layer fixed steel frame of the aerial platform is set above the bottom layer, and the second-layer steel frame serves as a guardrail; a movable springboard 1 is provided, and hooks are provided at both ends of the springboard so that the springboard can be movably hooked on the upper frame of the bottom layer and used as a standing platform for workers; c. The third-layer movable steel frame of the aerial platform is arranged above the second-layer fixed steel frame. According to the restricted area scenario, four protective cross bars 4 and four protective vertical bars 5 are designed and used. The quick-connect connectors 3 arranged on the protective vertical bars are movably connected to form a protective fence to achieve rapid installation and disassembly. The lower part of the protective vertical bar is connected to the horizontal bar of the fixed steel frame by a buckle (2), thereby achieving an expansion device for the aerial platform to climb and protect. The horizontal error is ≤3°. The springboard is a rectangular punched springboard. The quick-connect connector is a steel pipe quick-connect connector with an insertion depth of ≥40mm. After insertion, it is manually rotated 90° to lock. The protective cross bar is a standard galvanized steel pipe with a diameter of 30*3.6mm. The protective vertical bar is a standard galvanized steel pipe with a diameter of 30*3.6mm. Example 2 The manufacturing process of the expansion device of the mobile aerial work vehicle for climbing and protecting in restricted areas of the present invention is as follows: the aerial work vehicle is parked and the hydraulic system is locked, the springboard is placed horizontally at the working end of the vehicle body, and the horizontality is checked after the buckle is locked (error ≤ 3°) → the φ32mm vertical pole is vertically inserted into the reserved sleeve of the springboard → the cross bar is installed, the quick-insert connector needs to be inserted to a depth of ≥ 40mm, and after insertion, it is manually rotated 90° to lock → the vertical pole is reinforced for a second time using the 8-shaped buckle, the buckle spacing is ≤ 800mm, and the torque value is controlled at 30~40N·m → the aerial work vehicle is used to perform operations in restricted areas.

[0018] The manufacturing method of the expansion device for a mobile aerial work vehicle for climbing and protecting in a restricted area of the present invention comprises the following steps: (1) Material preparation 1) φ30*3.6mm standard galvanized steel pipe 2) Punching springboard: 1200*240*65*1.5 mm thick custom galvanized steel springboard with hooks; 3) φ32*3.6mm standard galvanized steel pipe.

[0019] (2) Control material size 1) The spacing between vertical poles is ≤600mm, and three horizontal cross bars are set, with heights of 600mm, 1100mm, and 1500mm from the platform surface respectively, with an error range of ±5mm.

[0020] 2) The springboard is 1200mm long to fit the reach of the aerial platform, with 50mm clip installation areas reserved on both sides. The effective working width of the platform is 240mm.

[0021] (3) Anti-slip platform installation 1) The punched steel springboard (1200×240×1.5mm) is fixed with an anti-unhooking lock. After the anti-unhooking lock is installed, a 3kN static load test is required.

[0022] 2) Guardrail installation The verticality of the vertical pole is tested with a laser line projector, and the total height deviation is ≤3mm; after the cross bar joint is plugged in, a lateral tensile test of ≥1.5kN is required to prevent it from coming loose.

[0023] Example 3 Method for using the expansion device for climbing and protecting a mobile aerial work vehicle in a restricted area of the present invention: Before using the platform, check the locking status of the quick-connect connectors and recheck the buckle tightness during operation. The maximum allowable uniform load is 2.0kN / m², and the concentrated load is 1.5kN. The quick-connect connectors are equipped with an internal spring locking mechanism, which automatically locks after insertion and requires pressing the unlock button to remove.

[0024] The present invention has substantial characteristics and significant technological advancements. The mobile aerial work vehicle of the present invention has a method for climbing and protecting in a restricted area. Its detachable aerial work vehicle pedal expansion device, compared with the aerial work vehicle operating platform, expands the operating range through modular splicing, adds supports and snap fixes to increase the anti-overturning moment, effectively solving the problem of operating platforms located in some high-altitude restricted areas such as steel structures, metal roofs, curtain walls, etc., reduces the frequency of aerial work vehicle movement, avoids workers climbing over the aerial work vehicle, and reduces the risk of falling.

[0025] The method for using the expansion device of the mobile aerial work vehicle of the present invention for climbing and protecting in restricted areas has been used in the Guangzhou Convention and Exhibition Center project. It is simple to construct, easy to operate, has strong expansion capabilities, strong stability and anti-tilt properties, has high compatibility and reliability, is easy to promote and use, has been unanimously recognized by the supervision unit and the construction unit, has been welcomed by the workers, and has achieved good economic benefits and social impact.

[0026] The above embodiments are intended to illustrate the present invention only and are not intended to limit the present invention. Persons skilled in the art may make various modifications or variations without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions are intended to fall within the scope of the present invention and are defined by the claims.

Claims

1. A method for climbing and protecting a mobile climbing vehicle in a restricted area, characterized in that The following steps are involved: a. The climbing vehicle stops and locks the hydraulic system. The bottom layer of the climbing vehicle is a fixed steel frame cage (6) with a rectangular bottom surface. The steel frame is placed horizontally at the working end of the vehicle body to detect the levelness of the bottom surface; the bottom of the bottom layer is provided with footboards (7) around the bottom; b. The second-layer fixed steel frame of the aerial platform is arranged above the bottom layer, and the second-layer steel frame serves as a guardrail; a movable springboard (1) is provided, and hooks are provided at both ends of the springboard so that the springboard can be movably hooked on the upper frame of the bottom layer and used as a standing platform for workers; c. The movable steel frame of the third layer of the aerial platform is arranged above the fixed steel frame of the second layer. According to the restricted area scenario, four protective horizontal bars (4) and four protective vertical bars (5) are designed and used. The protective fence is movably connected through the quick-connect connectors (3) arranged on the protective vertical bars to achieve rapid installation and disassembly. Among them, the lower part of the protective vertical bar is connected to the horizontal bar of the fixed steel frame through the buckle (2), thereby achieving the expansion device of the aerial platform for climbing and protection.

2. The method for climbing and protecting a mobile aerial work vehicle in a restricted area according to claim 1, characterized in that: The horizontality error is ≤3°.

3. The method for climbing and protecting a mobile aerial work vehicle in a restricted area according to claim 1, characterized in that: The springboard is a rectangular punching springboard.

4. The method for climbing and protecting a mobile aerial work vehicle in a restricted area according to claim 1, characterized in that: The quick-connect connector is a steel pipe quick-connect connector. The insertion depth of the quick-connect connector is ≥40 mm. After insertion, it is manually rotated 90° to lock.

5. The method for climbing and protecting a mobile aerial work vehicle in a restricted area according to claim 1, characterized in that: A spring locking mechanism is provided inside the quick-connect connector, which automatically locks after connection and requires pressing an unlocking button to be disassembled.

6. The method for climbing and protecting a mobile aerial work vehicle in a restricted area according to claim 1, characterized in that: The protective cross bar is a φ30*3.6mm standard galvanized steel pipe.

7. The method for climbing and protecting a mobile aerial work vehicle in a restricted area according to claim 1, characterized in that: The protective pole is a φ30*3.6mm standard galvanized steel pipe.

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