An operating platform for roof inverted bottom plate

Abstract

The technical problem to be solved by the present invention is to provide an operating platform for an inverted roof bottom plate, which overcomes the defects of limited space utilization and poor safety and stability of a single-person hanging basket and an aerial cable combined with a mobile hanging basket, improves the installation efficiency of the roof inverted plate, shortens the construction period, and effectively reduces the construction cost. The platform frame includes a platform frame for placing platform pedals, and the platform frame is a rectangular structure; upward force transmission rods are symmetrically provided on the left and right sides of the rear side of the platform frame, and the top of each force transmission rod is provided with a hanging hook that can be hung on the upper chord of a steel grid; diagonal braces are symmetrically provided on the left and right sides of the front side of the platform frame, and the upper ends of the diagonal braces are connected to the force transmission rods.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, in particular to an operating platform for an inverted roof bottom plate. Background Art

[0002] The steel grid structure with large span and large space is widely used in public buildings such as high-speed railway stations and sports stadiums. The roof system often uses perforated corrugated steel bottom plate as the ceiling bottom plate fixed to the lower part of the purlin to bear the upper roof structure layer. Since the installation of the inverted bottom plate at high altitude is difficult and risky, construction workers usually use a single hanging basket, aerial cables and mobile hanging baskets as construction operation platforms to install the roof inverted bottom plate in the steel grid.

[0003] However, the obvious defects of the single-person hanging basket construction method are small working surface and high frequency of back and forth movement. In addition, the construction efficiency of this roof reverse hanging bottom plate installation method is low, which affects the construction progress of the roof system. Figure 1 As shown, this is because the spacing between the upper chords, lower chords and web members of the steel grid is small, generally about 3m. The aerial cable and the mobile basket can only be set in the center of the upper chord, and the moving space elsewhere is limited. The moving process is poorly stable and the mobile basket cannot get close to the upper chord position for construction work. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an operating platform for an inverted roof bottom plate, which overcomes the defects of limited space usage and poor safety and stability of a single-person hanging basket and an aerial cable combined with a mobile hanging basket, improves the installation efficiency of the inverted roof plate, shortens the construction period, and effectively reduces the construction cost.

[0005] The present invention is achieved through the following technical solutions:

[0006] An operating platform for an inverted roof bottom plate comprises a platform frame for placing a platform pedal, wherein the platform frame is a rectangular structure;

[0007] The rear side of the platform frame is symmetrically provided with upward force transmission rods, and the top of each force transmission rod is provided with a hanging hook that can be hung on the upper chord of the steel grid;

[0008] The front side of the platform frame is symmetrically provided with diagonal braces, and the upper ends of the diagonal braces are connected to the force transmission rods.

[0009] Furthermore, the two force transmission rods are commonly fixedly connected with a transversely distributed reinforcing beam, and the lower ends of the force transmission rods are rotatably connected to the rear side of the platform frame;

[0010] The lower end of the diagonal brace is rotatably connected to the front side of the platform frame, and the upper end of the diagonal brace is rotatably connected to the reinforcing beam. The diagonal brace is a telescopic structure.

[0011] Furthermore, the diagonal support rod comprises an upper rod section, a threaded rod and a lower rod section, the upper and lower sections of the threaded rod are provided with reverse threads, and the upper and lower sections of the threaded rod are respectively threadedly connected to the upper rod section and the lower rod section.

[0012] Furthermore, the front end of the hanging hook is connected to an anti-dropping hook that can be locked on the force transmission rod through a flexible polyester braided rope.

[0013] Furthermore, the hanging hook is covered with a flexible rubber sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The structure of the present invention is safe and firm, and the operation is convenient. The whole device is suspended on the upper chord of the steel grid by hanging in the steel grid, and the platform frame is placed against the web bar, and the device can be put into use, which solves the technical problems of narrow space and difficult operation during the installation of the roof inverted bottom plate.

[0016] The present invention enables the process of installing the reverse hanging bottom plate to move quickly and safely, thereby improving production efficiency;

[0017] 2. The present invention is simple as a whole, has high strength, and is conducive to the flexible movement of the operating platform;

[0018] 3. By adjusting the length of the diagonal brace, the angle of the platform frame can be adjusted to meet the internal use of the steel grid, thereby improving its applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a steel grid structure in the prior art;

[0020] Figure 2 This is a schematic diagram of the structure of the operating platform for the roof inverted hanging bottom plate of the present invention;

[0021] Figure 3 It is a side view of the operating platform for the roof inverted hanging bottom plate of the present invention in use;

[0022] In the figure: 1. platform frame, 2. force transmission rod, 3. diagonal support rod, 31. upper section rod, 32. threaded rod, 33. lower section rod, 4. hanging hook, 5. strengthening beam rod, 6. anti-drop lock hook, 7. upper chord rod, 8. belly rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] In the description of the invention, it is necessary to understand that the directions or positional relationships indicated by the terms "front", "rear", "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the invention.

[0025] This embodiment discloses an operating platform for a roof inverted bottom plate, such as Figure 2 As shown, it includes a platform frame 1, two force transmission rods 2, two diagonal braces 3 and two hanging hooks 4. The platform frame 1 is a rectangular structure as a whole. The length of the platform frame 1 is set according to the spacing between two adjacent upper chord balls of the steel grid. Usually, the spacing is 3m, so the length of the platform frame 1 is designed to be 3m and the width is 450mm. The platform frame 1 is welded by multiple longitudinal beams and cross beams, and the longitudinal beams and cross beams are both made of 20*40 galvanized square tubes. The platform frame 1 is used to lay and place the platform pedal. The platform pedal is an anti-skid plate made of galvanized steel plate with a thickness of 1.2mm. The platform pedal is fixed to the longitudinal and cross beams of the platform frame 1 beam with stainless steel self-tapping screws.

[0026] The two force transfer rods 2 are made of DN25 galvanized round tubes. The lower ends of the two force transfer rods 2 are symmetrically connected to the rear side of the platform frame 1. The middle parts of the two force transfer rods 2 are fixedly connected with transversely distributed reinforcing beams 5 by welding. The reinforcing beams 5 are made of 20*40 galvanized square tubes, and their length is equal to that of the platform frame 1. When in use, the reinforcing beams 5 are close to the webs of the steel grid and also serve as guardrails.

[0027] The hanging hook 4 is an arc hook made of Φ16 round steel. The arc diameter of the hanging hook 4 meets the maximum rod diameter of the upper chord of the steel grid. The lower end of the hanging hook 4 is double-sidedly welded to the top of the upper end of the force transmission rod 2, and the weld length is 80mm. The front end of the hanging hook 4 is connected to an anti-drop lock hook 6 through a flexible polyester braided rope. The anti-drop lock hook 6 is used to lock on the force transmission rod 2. The hanging hook 4 is covered with a flexible rubber sleeve. This design prevents the anti-rust paint of the upper chord from being damaged when the hanging hook 4 is hung on the upper chord.

[0028] The lower ends of the two diagonal braces 3 are symmetrically connected to the front side of the platform frame 1, and the upper ends of the two diagonal braces 3 are movably connected to the reinforcing beam 5. Each diagonal brace 3 is a telescopic structure, and the diagonal brace 3 is composed of an upper rod 31, a threaded rod 32, and a lower rod 33. The upper and lower sections of the threaded rod 32 are processed with reverse threads, and the upper and lower sections of the threaded rod 32 are threadedly connected to the upper rod 31 and the lower rod 33, respectively. By rotating the middle threaded rod 32, the overall length of the diagonal brace 3 is achieved.

[0029] The specific use process of the operating platform for the roof inverted bottom plate of the present invention is as follows:

[0030] like Figure 3 As shown, the hanging hook is hung on the upper chord rod 7 at the designated construction position of the steel grid, and then the anti-drop lock hook 6 is locked to the upper end of the force transmission rod, thereby greatly improving the overall safety. The reinforcing beam is tightly attached to the web rod 8 of the steel grid, and then the inclination angle of the platform frame is adjusted by rotating the threaded rods of each diagonal brace until the platform frame is horizontal for workers to stand. Safety belts can be added to the reinforcing beams as needed to ensure the safety of construction workers. The present invention is sturdy and reliable, lightweight, fast to move, safe and reliable, overcomes the defects of limited space use and poor safety and stability of the hanging basket, improves the installation efficiency of the roof anti-hanging plate, shortens the construction period, and effectively reduces the cost of engineering construction.

Claims

1. An operating platform for a roof inverted bottom plate, characterized in that: A platform frame is included for placing a platform pedal, wherein the platform frame is a rectangular structure; The rear side of the platform frame is symmetrically provided with upward force transmission rods, and the top of each force transmission rod is provided with a hanging hook that can be hung on the upper chord of the steel grid; The front side of the platform frame is symmetrically provided with diagonal braces, and the upper ends of the diagonal braces are connected to the force transmission rods; The two force transmission rods are fixedly connected with a transversely distributed reinforcing beam rod, the reinforcing beam rod is used to be closely attached to the web rod of the steel grid, and the lower end of the force transmission rod is rotatably connected to the rear side of the platform frame; The lower end of the diagonal brace is rotatably connected to the front side of the platform frame, the upper end of the diagonal brace is rotatably connected to the reinforcing beam, and the diagonal brace is a telescopic structure; The diagonal support rod comprises an upper rod section, a threaded rod and a lower rod section. The upper and lower sections of the threaded rod are provided with reverse threads. The upper and lower sections of the threaded rod are respectively threadedly connected to the upper rod section and the lower rod section.

2. The operating platform for the roof inverted bottom plate according to claim 1, characterized in that: The front end of the hanging hook is connected to an anti-dropping hook which can be locked on the force transmission rod through a flexible polyester braided rope.

3. The operating platform for the roof inverted bottom plate according to any one of claims 1-2, characterized in that: The hanging hook is covered with a flexible rubber sleeve.

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