Roadbed high slope construction method through moving trolley

Abstract

The invention discloses a roadbed high slope construction method through a moving trolley. The method is completed by means of a highly-integrated high slope construction moving trolley. The movable trolley is mainly composed of the following parts: a movable trolley base; an assembled main body bracket; assembling type upstairs and downstairs and handrails; the invention discloses an assembled operating platform. According to the highly-integrated high slope construction moving trolley, moving of the trolley and lifting of the main body support are integrated on the control table of the moving trolley, and through one-key operation, the learning cost of constructors is greatly reduced. All the main body supports, the stairs and the construction operation platform are designed to be assembled, and the storage box is designed on the trolley base, so that the problems of storage and transportation of materials are solved, the erection time of the supports is greatly shortened, the construction materials are saved, and the working efficiency of high slope construction is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of road and bridge engineering, and particularly to a construction method for high subgrade slopes by means of a mobile trolley. Technical Background

[0002] The commonly used method for high subgrade slope construction at present is to manually build scaffolding. However, this method is time-consuming and laborious, with low efficiency, and the cost of steel pipe materials and manual erection is relatively high, especially in deep high slope projects. Or it is constructed by cooperating with large-scale mechanical equipment, but the cost of large-scale mechanical equipment is high and it is difficult to adapt to complex conditions.

[0003] At present, some projects adopt the method of erecting truss structures, mobile devices, etc. at the top of the slope and constructing through hanging baskets. However, this method requires the prior installation of truss structures on high slopes. The transportation and installation of trusses are time-consuming and laborious, and the working surface of the hanging basket is small, which affects the progress of the project. The recycling of materials after slope construction is also relatively complex. Summary of the Invention

[0004] Based on solving the above problems, the present invention provides a construction method for high subgrade slopes by means of a mobile trolley, which is completed by relying on a highly integrated mobile trolley for high slope construction. Through the highly integrated mobile trolley for high slope construction, the movement of the trolley and the lifting of the main support are integrated into the console of the mobile trolley, and through one-key operation, the learning cost of construction workers is greatly reduced. By designing all the main supports, stairs and construction operation platforms as assembled types and designing a storage box on the trolley base, the problems of material storage and transportation are solved at the same time, and the erection time of the supports is greatly reduced, construction materials are saved, and the working efficiency of high slope construction is greatly improved.

[0005] The present invention is realized as follows. There is provided a construction method for high subgrade slopes by means of a mobile trolley, which is characterized by including the following steps: Step 1: Design a reasonable height for the operator's operation platform according to the height of the anchor frame beam, and at the same time set the number of columns according to the working face requirements and design the stair layout. And calculate the slope angle of the column support base required according to the slope ratio; Step 2: Drive the mobile trolley for high slope construction to a suitable position beside the slope, and adjust the support installation base on the trolley base to a suitable position and a suitable slope angle; Step 3: Assemble the assembled support components stored on the mobile trolley in sequence; Step 4: Add appropriate counterweights to the counterweight box on the mobile trolley base; Step 5: Adjust the distance between the construction platform and the slope through the slope distance adjuster; Step 6: After the current working surface is completed, the main support is pulled up by the main support to pull the main support away from the slope, and the mobile trolley is driven to enter the next high slope working surface; Step 7. After completing all work surface construction, remove the construction supports in sequence and store them in the storage box on the base of the mobile trolley.

[0006] The method for constructing a high roadbed slope by a mobile trolley described in the present invention is characterized in that in step 1, the platform height, stair step, number of support columns, spacing and slope angle can be flexibly designed according to the actual situation of the slope and the height of the operator.

[0007] The method for constructing a high slope of a roadbed by a mobile trolley described in the present invention is characterized in that in step 2, the mobile trolley for high slope construction is highly integrated and mainly includes: a mobile trolley base, an assembled main body bracket, assembled up and down stairs and railings, and an assembled operating platform.

[0008] The method for constructing a high slope of a roadbed by a mobile trolley of the present invention is characterized in that: in step 2, the mobile trolley base includes a power drive device, a control platform, a winch, an assembly component storage box, and a counterweight box. The storage box solves the component storage and transportation problems of the traditional support construction method.

[0009] The method for constructing a high slope of a roadbed by a mobile trolley described in the present invention is characterized in that in step 3, all the frames are assemblable and fixed by means of bolts. Compared with traditional brackets, the height of the construction platform can be flexibly set according to the slope construction position, so that the working surface of the construction workers can be controlled at the most comfortable height.

[0010] The method for constructing a high slope of a roadbed by a mobile trolley described in the present invention is characterized in that: in the step 4, concrete test blocks are added to the counterweight box on the base of the mobile trolley for counterweighting, which can be reused.

[0011] The method for constructing a high roadbed slope by a mobile trolley described in the present invention is characterized in that: in the step 5, the slope distance adjuster is adjusted by a screw rod to achieve a close fit between the operating platform and the slope, increase the fulcrum of the operating platform, and enhance the stability of the main body.

[0012] The method for constructing a high slope of a roadbed using a mobile trolley described in the present invention is characterized in that: in the step 6, the support body is lifted by a winch to achieve the overall movement of the mobile trolley, the support body and the operating platform, wherein the control of the winch is also integrated into the control platform of the mobile trolley.

[0013] The method for constructing a high slope of a roadbed by a mobile trolley described in the present invention is characterized in that in step 7, the main support, handrails and construction operation platform are all assembled and stored on the mobile trolley after disassembly to achieve high integration.

[0014] The invention discloses a method for constructing a high slope of a roadbed by a mobile trolley, which is characterized in that: the base of the mobile trolley is highly integrated, and the driving motor, the counterweight box, the assembly component storage box, the support column slide rail, the column support mounting base, the integrated operating platform, and the winch are all integrated on the mobile trolley base; Its power system is driven by an electric motor, and the battery is placed in the integrated operating platform, and its control system is also integrated in the integrated operating platform; The ballast box is used to balance the whole vehicle after the support is erected and during construction. The ballast box is equipped with a switch door to facilitate adding and unloading ballast; All main supports, stairs, guardrails, and construction operation platforms can be stored in the assembly component storage box on the trolley; A support column slide rail is set on one side, and the distance between two support columns can be set according to the actual situation, or the number of column support mounting bases can be increased to achieve the purpose of adapting to most working conditions; and the slope angle of the column support mounting base can be flexibly adjusted according to the parking position of the mobile trolley and the slope angle; The forward and backward movement and steering of the mobile trolley and the retraction and extension of the winch are integrated into the integrated operation platform, and the control mode is simplified to a key-type mode, which greatly reduces the operation learning cost; The main support, stairs, guardrails and construction operation platform are all assembled components, which can be used in a flat village according to the actual situation. All connections are sleeve-type connections, which greatly enhances the strength and safety of the connections. The assembly segments include four types of assembleable segments: standard bracket segments, safety rope hanging cross bars, standard guardrail segments, and operating platform connecting rods. Among them, the standard bracket segments, safety rope hanging cross bars, and standard guardrail segments are segments of the same specifications and can be used universally, making the assembly process simpler without having to specifically distinguish the use of the segments; only the operating platform connecting rod is provided with bolt holes to increase the stability of the operating platform; Its connecting sleeves include: main body connecting sleeves and stair guardrail connecting sleeves for cross-connection between segments; segment docking sleeves and stair guardrail docking sleeves for docking between segments; the above sleeve connections do not require torsion resistance, and all use four floor bolts to fix the position through the force of the bolt ends. The operating platform connecting sleeve used to connect the bracket body and the operating platform uses two long bolts and is used in combination with the operating platform connecting rod to achieve a stronger torsion resistance effect; An assembled staircase is built on the crossbar to enable operators to move up and down between different working platforms, which is safer and more reliable. Moreover, it can be set at different positions according to needs. The operation platform is built by laying plastic buckle plates (operation surfaces) on the connecting rods of the operation platform. The plastic buckle plates are of regulated sizes and are assembled on the connecting rods of the operation platform in a buckling form, which is convenient for disassembly and installation and has high strength. The length of the operation platform rod is adjusted by the screw rod of the slope distance adjuster installed at the end of the connecting rod of the operation platform, so that it just lies on the slope, making the distance between the working surface and the slope zero. At the same time, the stability of the operation platform is enhanced, and the safety of the construction personnel is greatly enhanced.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This construction method is completed relying on a highly integrated high-slope construction mobile trolley. The movement of the trolley and the lifting of the main bracket are integrated into the console of the mobile trolley. Through one-key operation, the learning cost of construction personnel is greatly reduced. By designing all the main brackets, staircases and construction operation platforms as assembled types, they can be adjusted according to the specific slope, with strong applicability. It is safe and convenient to go up and down through the assembled staircase, has a large working surface and is stable. A storage box is designed at the base of the trolley, which solves the problems of storage and transportation of materials at the same time. At the same time, the erection time of the brackets is greatly reduced, construction materials are saved, and the working efficiency of high-slope construction is greatly improved. Description of the Drawings

[0016] Figure 1 It is the construction flow chart of a subgrade high-slope construction method carried out by a mobile trolley according to the present invention. Figure 2 It is the axonometric view of the construction state of the high-slope construction mobile trolley of a subgrade high-slope construction method carried out by a mobile trolley according to the present invention. Figure 3 It is the structural schematic diagram of the base of the high-slope construction mobile trolley of a subgrade high-slope construction method carried out by a mobile trolley according to the present invention. Figure 4 It is the structural schematic diagram of the main bracket of the high-slope construction mobile trolley of a subgrade high-slope construction method carried out by a mobile trolley according to the present invention. Figure 5 It is the structural schematic diagram of the connecting sleeve of the high-slope construction mobile trolley of a subgrade high-slope construction method carried out by a mobile trolley according to the present invention. Figure 6 It is the structural schematic diagram of the assembled staircase of the high-slope construction mobile trolley of a subgrade high-slope construction method carried out by a mobile trolley according to the present invention. Figure 7It is a schematic structural diagram of a slope distance adjuster for a high slope construction mobile trolley in a subgrade high slope construction method of the present invention through a mobile trolley; Figure 8 It is an actual construction rendering of a high slope construction mobile trolley in a subgrade high slope construction method of the present invention through a mobile trolley; Figure 9 It is a construction sequence diagram of the first - layer operation platform of a high slope construction mobile trolley in a subgrade high slope construction method of the present invention through a mobile trolley.

[0017] In the figure: 1. Mobile trolley base; 2. Main body support; 3. Stairs and guardrails; 4. Construction operation platform; 101. Driving motor; 102. Counterweight box; 103. Assembly component storage box; 104. Support column slide rail; 105. Column support installation base; 106. Integrated operation platform; 107. Winch; 201. Support standard section; 202. Main body connection sleeve; 203. Section docking sleeve; 204. Safety rope suspension crossbar; 301. Assembled stairs; 302. Stair guardrail connection sleeve; 303. Stair guardrail docking sleeve; 304. Guardrail standard section; 401. Operation platform connection sleeve; 402. Operation platform connecting rod; 403. Slope distance adjuster; 404. Plastic buckle plate (operation surface). Specific implementation mode

[0018] The present invention will be further described below in conjunction with the accompanying drawings and implementation cases. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0019] The present invention provides a subgrade high slope construction method through a mobile trolley, and its implementation is described below; the mobile trolley base 1 has a high degree of integration, and the driving motor 101, counterweight box 102, assembly component storage box 103, support column slide rail 104, column support installation base 105, integrated operation platform 106, and winch 107 are all integrated onto the mobile trolley base.

[0020] Its power system 101 is driven by an electric motor, the battery is placed in the integrated operation platform 106, and its control system is also integrated on the integrated operation platform 106.

[0021] The counterweight box 102 is used to balance the whole vehicle after the support is erected and during construction. The counterweight box is provided with a switchable door, which is convenient for adding and unloading counterweights.

[0022] All the main body supports 2, stairs and guardrails 3, and construction operation platforms 4 can be stored in the assembly component storage box 103 on the trolley; the storage box is designed with partitions, which is convenient for storage and use.

[0023] A support column slide rail 104 is provided on one side. The distance between every two support columns can be set according to the actual situation, or the number of column support installation bases 105 can be increased to achieve the purpose of adapting to most working conditions. And the slope angle of the column support installation base can be flexibly adjusted according to the position where the mobile trolley stops and the slope angle.

[0024] Integrate the forward and backward movement, steering of the mobile trolley, and the retraction and release of the winch 107 into the integrated operation platform 106, and simplify the control mode to a key-press type, greatly reducing the operation learning cost.

[0025] Its main support 2, staircase and guardrail 3, and construction operation platform 4 are all assembled components, which are used flat according to the actual situation. All connections adopt sleeve connections, greatly enhancing the strength and safety of the connection points.

[0026] Its assembled segments include: four types of assemblable segments such as support standard segments 201, safety rope suspension crossbars 204, guardrail standard segments 304, and operation platform connecting rods 402. Among them, the support standard segments 201, safety rope suspension crossbars 204, and guardrail standard segments 304 are segments of the same specification and can be used interchangeably, making the assembly process simpler without having to specifically distinguish the use of segments. Only 402 has bolt holes to increase the stability of the operation platform.

[0027] Its connection sleeves include: main connection sleeves 202 for cross-connection between segments, staircase and guardrail connection sleeves 302; segment docking sleeves 203 for docking between segments, staircase and guardrail docking sleeves 303; the above sleeve connections do not require anti-torsion, and all use four bolts to fix the position through the force at the bolt ends. The operation platform connection sleeve 401 for connecting the support main body and the operation platform uses two long bolts and is used in combination with 402 to achieve a stronger anti-torsion effect.

[0028] An assembled staircase 301 is built on the crossbar to enable operators to move up and down between different working platforms, which is safer and more reliable, and can be set at different positions according to needs.

[0029] The operation platform is built by laying a plastic buckle plate (operation surface) 404 on the operation platform connecting rod 402. The plastic buckle plate is of a regulated size and is assembled on the operation platform connecting rod 402 in a buckling form, which is convenient for disassembly and installation and has high strength.

[0030] The length of the operation platform rod is adjusted by the screw rod of the slope distance adjuster 403 installed at the end of the operation platform connecting rod 402 so that it just reaches the slope, making the distance between the working surface and the slope zero, while enhancing the stability of the operation platform and greatly enhancing the safety of construction workers.

[0031] It is composed of full assembly, achieving the purpose of customizing the working surface. According to the actual slope construction needs, the operating surface is set at an appropriate height, enabling the operator to easily operate in a standing position.

[0032] It is composed of full assembly, meeting the requirements of multiple working surfaces, allowing synchronous construction on multiple working surfaces, and greatly improving work efficiency.

[0033] All components are erected on a mobile trolley. After completion of assembly, construction of similar slopes can be successively completed, greatly reducing the time for scaffold erection in traditional construction and significantly saving the number of steel pipe components, achieving the purpose of economic savings.

[0034] This invention is basically applicable to the construction of most current high subgrade slope anchor frame beams. More specifically, this construction method has the following beneficial effects: First: All power systems, winches, combined scaffolds, operating platform systems, operating control systems, storage systems, and counterweight systems are highly integrated on a single trolley, making use, transportation, storage, and operation convenient and fast.

[0035] Second: The distance between columns, the number of columns, and the slope angle can be set according to the actual high slope construction conditions through the slide rail system and scaffold base on the trolley, achieving the purpose of being highly applicable to different engineering projects.

[0036] Third: All main scaffolds, stair railing systems, and construction operating platform systems are assembled components, and the traditional connection method is changed to sleeve connection. The connection strength has been greatly improved, and all components can be recycled. Even if some components are damaged, it does not affect the overall use, and only the corresponding components need to be replaced, with small losses, being economical and environmentally friendly.

[0037] Fourth: The position and number of construction operating platforms can be set according to the slope protection design, enabling multi-platform construction simultaneously. Moreover, this invention designs an end regulator to deal with uneven slopes, enabling the perfect erection of the operating platform even on uneven surfaces.

[0038] Fifth: The operator can pass through the assembled stairs on the scaffold, and the erection of the stairs can also be adjusted according to the operator's height, achieving better comfort and safety.

[0039] Sixth: After the construction of the scaffold and operating platform is completed, only by slightly pulling up the main body of the scaffold with a winch can the overall movement be achieved, and no re-assembly is required before the completion of similar slope construction, greatly saving time and shortening the construction period.

[0040] In an engineering example, please refer to Figure 8(Rendering), in the figure, the slope is a high slope with a ratio of 1:0.75, the slope height is 8m, and it is designed as a slope protection with anchor rod frame beams. The first frame beam is located 0.5m along the slope from the bottom of the slope, and then there is a frame beam every 3m, with a total of four frame beams. The first frame beam can be directly constructed on the ground, and the present invention can only be erected for the upper three frame beams.

[0041] Step 1: Design a reasonable operating platform height for the operators according to the height of the anchor rod frame beam, and set four columns according to the working face requirements. The column spacing for arranging the upper and lower stairs on both sides is 1.2m, and the slope angle of the column support base required is calculated according to the slope ratio, which is 53° with the ground.

[0042] Step 2: Drive the mobile trolley to a position half a meter away from the bottom of the slope, as parallel to the slope as possible, and install the first-level step. Please refer to Figure 9 (Sequence diagram for building the first-layer operating platform) First, insert the standard section of the vertical pole; successively install the main body connecting sleeve and the railing connecting sleeve on the vertical pole; then pass the cross bar through one end of the main body connecting sleeve, and connect components such as the stairs and the fixing sleeve of the operating platform, and then pass through the main body connecting sleeve at the other end; install the adjusting end and the railing again (install the top railing connecting sleeve in advance); finally, install the operating platform buckle plate, and make the operating platform just built on the slope through the end adjuster.

[0043] Step 3: Repeat the installation sequence in the second step above to complete the construction of the second-level operating platform and the third-level operating platform. The final construction effect is as shown in Figure 8 As shown, the upper and lower of the three-level operating platform and the handling of tools are realized through the stairways on both sides. At the same time, the sunken operating platform also makes the operating platform more conform to the construction surface. And an efficient construction mode of simultaneous construction of the three operating platforms is realized.

[0044] Step 4: Use local materials for the counterweight of the mobile trolley, or directly use the concrete test blocks made in the on-site laboratory for counterweight to realize the reuse of the counterweight.

[0045] Step 5: After completing the construction of the anchor rods, frame steel bars and formworks of the anchor rod frame beam on the current construction surface, gently lift the support through the winch to realize the overall movement of the support and the trolley into the next construction surface.

[0046] Step 6: After completing the construction of the entire slope, the support, stairs and operating platform can be demolished from top to bottom. The demolished components can all be stored in the storage box of the trolley. This solves the problem of material storage, ensures that there will be no mixing with other materials, and also solves the problem of material transportation. And after a project is completed, the trolley can go to the next project for construction, which maximally solves the problem of material waste.

[0047] The above implementation methods are only used to illustrate the present invention and not to limit the present invention. Although the present invention has been described in detail with reference to the implementation cases, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solution of the present invention and should all be covered within the scope of the claims of the present invention.

Claims

1. A method for constructing a high slope of a roadbed by a mobile trolley, characterized in that: The following steps are involved: Step 1: Design a reasonable height of the operator's operating platform according to the height of the anchor frame beam, set the number of columns according to the working surface requirements, and design the stair layout; and calculate the required slope angle of the column support base according to the slope ratio; Step 2: Drive the high slope construction mobile trolley to a suitable position next to the slope, and adjust the bracket mounting base on the mobile trolley base to a suitable position and a suitable slope angle; Step 3, assembling the assembled bracket components stored on the mobile trolley in sequence; Step 4, add appropriate counterweights to the counterweight box on the mobile trolley base; Step 5, adjusting the distance between the construction platform and the slope by means of a slope distance adjuster; Step 6: After the current working surface is completed, the main support is pulled up by the main support to pull the main support away from the slope, and the mobile trolley is driven to enter the next high slope working surface; Step 7. After completing all work surface construction, remove the construction supports in sequence and store them in the storage box on the base of the mobile trolley.

2. A method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: In step 1, the platform height, stair step, number of support columns, spacing and slope angle are flexibly designed according to the actual slope conditions and the height of the operator.

3. A method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: In step 2, the high slope construction mobile trolley is highly integrated and mainly comprises: a mobile trolley base (1), an assembled main body bracket (2), assembled up and down stairs and handrails (3), and an assembled operating platform (4).

4. The method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: In step 2, the mobile trolley base (1) includes a power drive device, a control platform, a winch, an assembly component storage box, and a counterweight box; wherein the storage box solves the component storage and transportation problems of the traditional support construction method.

5. The method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: In step 3, all the frames are assembleable and fixed by bolts. The height of the construction platform can be flexibly set according to the slope construction position, so that the construction workers' working surface can be controlled at the most comfortable height.

6. The method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: In the step 4, concrete test blocks are added to the counterweight box on the base of the mobile trolley for counterweighting, which can be reused.

7. The method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: In step 5, the slope distance adjuster is adjusted by a screw rod to achieve a close fit between the operating platform and the slope, increase the fulcrum of the operating platform, and enhance the stability of the main body.

8. The method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: In step 6, the support body is lifted by a winch to achieve the overall movement of the mobile trolley, the support body and the operating platform, wherein the control of the winch is also integrated into the control platform of the mobile trolley.

9. The method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: In step 7, the main support, handrails and construction operation platform are all assembled and can be stored on the mobile trolley after disassembly to achieve high integration.

10. The method for constructing a high slope of a roadbed by a mobile trolley according to claim 1, characterized in that: The mobile trolley base is highly integrated, with a drive motor (101), a counterweight box (102), an assembly component storage box (103), a support column slide rail (104), a column support mounting base (105), an integrated operating platform (106), and a winch (107) all being integrated onto the mobile trolley base; Its power system (101) is driven by an electric motor, and the battery is placed in an integrated operating platform (106), and its control system is also integrated on the integrated operating platform (106); The balance of the whole vehicle is balanced by the counterweight box (102) after the support is erected and during construction; the counterweight box is provided with a switch door to facilitate adding and unloading counterweight; All the main body brackets (2), stairs and guardrails (3), and the construction operation platform (4) can be stored in the assembly component storage box (103) on the trolley; A support column slide rail (104) is provided on one side, and the distance between two support columns can be set according to actual conditions, or the number of column support mounting bases (105) can be increased, so as to achieve the purpose of being able to adapt to most working conditions; And the slope angle of the column bracket installation base can be flexibly adjusted according to the parking position of the mobile trolley and the slope angle; The forward and backward movement and steering of the mobile trolley and the retraction and extension of the winch (107) are all integrated into the integrated operation platform (106), and the control mode is simplified to a key-type mode, thereby greatly reducing the operation learning cost; The main frame (2), stairs and guardrails (3), and construction operation platform (4) are all assembled components, which can be used in a flat village according to actual conditions. All connections are sleeve-type connections, which greatly enhances the strength and safety of the connections. The assembly segments include four types of assembleable segments: a bracket standard segment (201), a safety rope hanging cross bar (204), a guardrail standard segment (304), and an operating platform connecting rod (402). The bracket standard segment (201), the safety rope hanging cross bar (204), and the guardrail standard segment (304) are segments of the same specifications and can be used interchangeably, making the assembly process simpler without having to specifically distinguish the use of the segments. Only the operating platform connecting rod (402) is provided with bolt holes in order to increase the stability of the operating platform. The connecting sleeves include: a main body connecting sleeve (202) and a stair guardrail connecting sleeve (302) for cross-connection between segments; a segment docking sleeve (203) and a stair guardrail docking sleeve (303) for docking between segments; the above-mentioned sleeve connections have no torsion resistance requirements and all use four bolts to fix the position by the force of the bolt ends; An operating platform connecting sleeve (401) for connecting the support body and the operating platform, which uses two long bolts and is used in conjunction with an operating platform connecting rod (402) to achieve a stronger torsion resistance effect; An assembled staircase (301) is built on the crossbar to enable operators to move up and down between different working platforms, which is safer and more reliable, and can be set up at different locations according to needs; The operating platform is constructed by arranging the plastic gusset plate (404) on the operating platform connecting rod (402); the plastic gusset plate is of a specified size and is assembled on the operating platform connecting rod (402) by buckling and pressing, and is easy to disassemble and assemble and has high strength; The length of the operating platform rod is adjusted by means of a spiral rod of a slope distance adjuster (403) installed at the end of the operating platform connecting rod (402) so that the operating platform is just placed on the slope, so that the distance between the working surface and the slope is zero, and the stability of the operating platform is enhanced, thereby greatly enhancing the safety of construction workers.

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