A rotary arm type elevator shaft construction work platform

Abstract

A rotary arm type elevator shaft construction work platform comprises a stairwell, an elevator vestibule, a shaft distributed on the opposite side of the elevator vestibule, and two groups of channel steel frames arranged in the area between the elevator vestibule and the shaft, the shaft comprising an air shaft and an electric shaft, two groups of additional channel steels distributed in parallel are welded to the surface of the channel steel frame near the four corners, and a sleeve is welded to the area between the two groups of additional channel steels, a rotating mechanism that can rotate is mounted inside the sleeve, and lifting rings are arranged at the four corners of the channel steel frame; the technical key points are that the work platform has the characteristics of simple structure, quick installation, safety and reliability, convenient turnover and site saving, can greatly reduce the amount of construction work, and can be widely used in various construction sites.

Description

Technical Field

[0001] The invention belongs to the technical field of building structure construction, in particular to a rotary arm type elevator shaft construction work platform. Background Art

[0002] At present, during the structural construction of elevator shaft parts such as formwork support and steel bar binding, the mainstream construction method is to set up a buckle-type scaffolding construction work platform, and gradually increase the scaffolding height with the increase of floor height. After the structural construction is completed, the buckle-type scaffolding in the elevator shaft will be dismantled from top to bottom and transported out.

[0003] At the same time, the construction platform of the buckle-type scaffolding is built up layer by layer, which has the disadvantages of consuming a lot of manpower and material resources and a long construction period. When the site area is limited, the problems of material stacking and extended construction period of the buckle-type scaffolding are more obvious. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and design a safe, convenient and efficient elevator shaft construction work platform, which has the characteristics of simple structure, quick installation, safety and reliability, convenient turnover and site saving, greatly reduces the amount of construction work, and can be widely used in various construction sites.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A rotary arm elevator shaft construction work platform includes a stairwell, an elevator vestibule, a shaft distributed on the opposite side of the elevator vestibule, and two sets of channel steel frames arranged in the area between the elevator vestibule and the shaft, wherein the shaft includes an air shaft and an electrical shaft.

[0007] Two groups of parallel additional channel steels are welded on the surface of the channel steel frame near the four corners, and a sleeve is welded in the area between the two groups of additional channel steels. A rotating mechanism is installed inside the sleeve, and the four corners of the channel steel frame are provided with lifting rings.

[0008] Preferably, the channel steel skeleton is a frame structure, and four 10# channel steels are provided in the transverse and longitudinal directions of the channel steel skeleton, and the nodes formed between the channel steels are connected by welding.

[0009] Preferably, a patterned steel plate is welded to the upper surface of the channel steel frame, and the thickness of the patterned steel plate is 3 mm.

[0010] Preferably, the sleeve comprises a round steel pipe and square steel plates welded to the upper and lower ends of the round steel pipe, and a hole of the same size as the round steel pipe is cut in the center of the square steel plate and welded to the surface of the additional channel steel.

[0011] Preferably, an angle steel limit plate for preventing the rotating mechanism from rotating is welded on the square steel plate at the bottom end of the sleeve, and the cross-section of the angle steel limit plate is "L"-shaped.

[0012] Preferably, the rotating mechanism includes a crossbeam, a rotating shaft welded to one end of the bottom side of the crossbeam, and a supporting plate welded to the bottom end of the rotating shaft. During installation, the supporting plate is clamped with the angle steel limit plate below the sleeve.

[0013] A method for using a rotary arm type elevator shaft construction work platform, the specific steps are:

[0014] Step 1: Before lifting, a horizontal safety net needs to be set up at the bottom of the shaft working surface, which is located in the area formed between the elevator vestibule and the shaft;

[0015] Step 2: Four-point lifting is adopted, with four hooks hung on four lifting rings of the working platform respectively, and slowly lifted upward in the wellbore;

[0016] Step three, when hoisting to the predetermined position, the hook can be unhooked only after ensuring that the crossbeam of the rotating mechanism in the working platform is aligned with the preset supporting bayonet on the inner wall of the wellbore and the working platform remains stable.

[0017] Compared with the prior art, the present invention provides a rotary arm type elevator shaft construction work platform, which has the following beneficial effects:

[0018] First, the overall structure of the operating platform is simple, the design is reasonable, and it is safe and reliable.

[0019] Secondly, the rotating mechanism used can be adjusted in angle and placed on the preset support bayonet on the inner wall of the wellbore, so that the entire working platform can realize load-bearing operations.

[0020] Third, the entire operating platform consumes less materials and saves space. At the same time, the construction workload is less and only a crane is needed to complete the installation work, thus reducing the cost investment.

[0021] Fourth, after the operation of one layer in the shaft is completed, it can be directly dismantled and lifted along with the progress of the main structure construction to achieve reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure assembly of the present invention;

[0023] Figure 2 is a plan view of the working platform of the present invention;

[0024] Figure 3 is a plan view of the channel steel skeleton of the present invention;

[0025] Figure 4 is a vertical view of the working platform of the present invention;

[0026] Figure 5 It is a schematic diagram of the overall structure of the rotating mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the sleeve structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the suspension ring structure of the present invention.

[0029] Figure numerals: 1. stairwell; 2. elevator vestibule; 3. air shaft; 4. electricity shaft; 5. channel steel frame; 51. additional channel steel; 6. patterned steel plate; 7. rotating mechanism; 71. crossbeam; 72. rotating shaft; 73. support plate; 8. lifting ring; 9. sleeve; 10. angle steel limit plate. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 , further illustrating a specific implementation of a rotary arm type elevator shaft construction work platform of the present invention. A rotary arm type elevator shaft construction work platform of the present invention is not limited to the description of the following embodiments.

[0031] This embodiment provides a specific structure of a rotary arm type elevator shaft construction work platform, such as Figure 1-7 As shown, a rotary arm elevator shaft construction work platform includes a stairwell 1, an elevator vestibule 2, a shaft distributed on the opposite side of the elevator vestibule 2, and two sets of channel steel frames 5 arranged in the area between the elevator vestibule 2 and the shaft. The shaft includes an air shaft 3 and an electrical shaft 4.

[0032] Two groups of additional channel steels 51 are welded to the surface of the channel steel frame 5 near the four corners, and a sleeve 9 is welded to the area between the two groups of additional channel steels 51. A rotating mechanism 7 is mounted inside the sleeve 9. The four corners of the channel steel frame 5 are provided with lifting rings 8.

[0033] like Figure 7 As shown, four lifting rings 8 are set at the four corners of the working platform. The lifting rings 8 are made of A10 steel bars and are rotatably assembled with the inner wall of the channel steel frame 5 for lifting and installation. During lifting, four hooks are hung on the four lifting rings 8 of the working platform respectively to ensure that each lifting ring 8 is balanced in force, thereby enhancing the stability of the working platform during lifting.

[0034] like Figure 1-3 As shown, the channel steel frame 5 is a frame structure, and four 10# channel steels are arranged in the transverse and longitudinal directions of the channel steel frame 5, and the nodes formed between the channel steels are connected by welding;

[0035] Specifically, when in use, according to the actual situation on site, two additional channel steels 51 can be added at the corresponding position of each rotating mechanism 7 to facilitate connection with the sleeve 9; and another channel steel is welded between the two additional channel steels 51 for reinforcement, and the web of the channel steel is close to the square steel plate at the upper end of the sleeve 9.

[0036] like Figure 1 and 2 As shown, a patterned steel plate 6 is welded on the upper surface of the channel steel frame 5, and the thickness of the patterned steel plate 6 is 3 mm;

[0037] Specifically, the panel of the patterned steel plate 6 is a 3 mm thick patterned steel plate; for the convenience of construction, the overall plane size of the working platform should be 200 mm smaller than the on-site elevator shaft.

[0038] like Figure 2 , 3 As shown in FIG. 6 , the sleeve 9 includes a round steel pipe and square steel plates welded to the upper and lower ends of the round steel pipe, and a hole of the same size as the round steel pipe is cut in the center of the square steel plate and welded to the surface of the additional channel steel 51;

[0039] Specifically, the round steel pipe is a DN100 round steel pipe, and the rotating shaft 72 of each rotating mechanism 7 can be inserted into the DN100 round steel pipe. The wall thickness of the sleeve 9 is 3 mm.

[0040] The upper and lower ends of the DN100 round steel pipe are welded with square steel plates of 300×300×5mm. A hole of the same size as the pipe opening of the DN100 round steel pipe is cut in the center of the square steel plate and is welded to the additional channel steel 51.

[0041] like Figure 4 and 6 As shown, an angle steel limit plate 10 for preventing the rotating mechanism 7 from rotating is welded on the square steel plate at the bottom end of the sleeve 9, and the cross section of the angle steel limit plate 10 is "L" shaped;

[0042] Specifically, an angle steel is selected as a limit plate, and an angle steel limit plate 10 is formed, and the angle steel limit plate 10 is welded to the square steel plate at the bottom end of the sleeve 9, such as Figure 4 As shown, it is used to prevent the rotating mechanism 7 from rotating.

[0043] like Figure 5 As shown, the rotating mechanism 7 includes a crossbeam 71, a rotating shaft 72 welded to one end of the bottom side of the crossbeam 71, and a supporting plate 73 welded to the bottom end of the rotating shaft 72. During the installation process, the supporting plate 73 is clamped with the angle steel limit plate 10 below the sleeve 9;

[0044] Specifically, the rotating shaft 72 is made of a round steel tube with an A80mm diameter and a wall thickness of 5mm and a length of 160mm;

[0045] The support plate 73 is made of a steel plate with a specification of 200×200×10 mm and is welded to the rotating shaft 72 in the center.

[0046] The crossbeam 71 of the rotating mechanism 7 is made of a square steel pipe with a specification of 100×100×5mm and a length of 740mm. During the installation process, the support plate 73 needs to be firmly clamped with the angle steel limit plate 10 at the bottom end of the sleeve 9, and it can only be used after confirming that it cannot rotate.

[0047] During the specific use of the rotating mechanism 7, since the length of the rotating shaft 72 is greater than the height of the sleeve 9, when adjusting the rotating mechanism 7, the rotating mechanism 7 can be pressed downward first, and then the support plate 73 is separated from the angle steel limit plate 10, and then rotated and restored to its original state to complete the rotation adjustment operation.

[0048] A method for using a rotary arm type elevator shaft construction work platform, the specific steps are:

[0049] Step 1: Before hoisting, a horizontal safety net needs to be set at the bottom of the shaft working surface, which is located in the area formed between the elevator vestibule 2 and the shaft;

[0050] Step 2: The hoisting adopts four-point hoisting, with four hooks hung on four lifting rings 8 of the working platform respectively, and slowly hoisted upward in the wellbore;

[0051] Step three, when hoisted to the predetermined position, the hook can be unhooked only after ensuring that the crossbeam 71 of the rotating mechanism 7 in the working platform is aligned with the preset supporting bayonet on the inner wall of the wellbore and the working platform remains stable.

[0052] The precautions for this hoisting operation are as follows: during the hoisting process, professional technicians must be on-site to guide the installation, special operations personnel must be certified, and construction personnel need to wear safety belts when working on the edge and at height to ensure the safety of the hoisting process. After the hoisting is completed, warning signs and usage specifications need to be set up near the well pipe; the person responsible for the platform must be identified; during the use of the platform, the construction load allowed is 1 ton, and the quality of the welds must be checked frequently. If cracks are found in the welds, they should be stopped immediately and repaired before they can be put into use after inspection and confirmation. The load-bearing platform is lifted according to the progress of the main structure construction.

[0053] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A rotary arm elevator shaft construction work platform, comprising a stairwell (1), an elevator vestibule (2), a shaft distributed on the opposite side of the elevator vestibule (2), and two sets of channel steel frames (5) arranged in the area between the elevator vestibule (2) and the shaft, wherein the shaft comprises an air shaft (3) and an electrical shaft (4), and is characterized in that: Two groups of parallel additional channel steels (51) are welded at positions near the four corners of the surface of the channel steel frame (5), and a sleeve (9) is welded in the area between the two groups of additional channel steels (51). A rotating mechanism (7) capable of rotating is mounted inside the sleeve (9), and four corners of the channel steel frame (5) are provided with lifting rings (8); The channel steel frame (5) is a frame structure, and four 10# channel steels are provided in the transverse and longitudinal directions of the channel steel frame (5), and the nodes formed between the channel steels are connected by welding; the rotating mechanism (7) includes a crossbeam (71), a rotating shaft (72) welded to one end of the bottom side of the crossbeam (71), and a supporting plate (73) welded to the bottom end of the rotating shaft (72); during the installation process, the supporting plate (73) is clamped with the angle steel limit plate (10) below the sleeve (9).

2. A rotary arm type elevator shaft construction work platform as claimed in claim 1, characterized in that: A patterned steel plate (6) is welded to the upper surface of the channel steel frame (5), and the thickness of the patterned steel plate (6) is 3 mm.

3. A rotary arm type elevator shaft construction work platform as claimed in claim 1, characterized in that: The sleeve (9) comprises a round steel pipe and square steel plates welded to the upper and lower ends of the round steel pipe, and a hole of the same size as the round steel pipe is cut in the center of the square steel plate and welded to the surface of the additional channel steel (51).

4. A rotary arm type elevator shaft construction work platform as claimed in claim 3, characterized in that: An angle steel limit plate (10) for preventing the rotating mechanism (7) from rotating is welded on the square steel plate at the bottom end of the sleeve (9), and the cross section of the angle steel limit plate (10) is in an "L" shape.

5. The method for using a rotary arm type elevator shaft construction work platform according to claim 1, characterized in that: The specific steps are: Step 1: Before lifting, a horizontal safety net needs to be set at the bottom of the shaft working surface, and the shaft working surface is located in the area formed between the elevator vestibule (2) and the shaft; Step 2: The lifting is carried out by using a four-point lifting method, where four hooks are respectively hung on four lifting rings (8) of the working platform, and the lifting is slowly carried upwards in the wellbore; Step three, when hoisted to the predetermined position, the hook can be unhooked after ensuring that the crossbeam (71) of the rotating mechanism (7) in the working platform is aligned with the preset supporting bayonet on the inner wall of the wellbore and the working platform remains stable.

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