A telescopic folding single-man operating platform for high-altitude narrow slit operation

Abstract

The utility model discloses a telescopic folding single -person operation platform for high altitude narrow slit operation, including the heavy frame of platform whole bearing base, the fixed hinged in one end of heavy frame's fixed movable frame, the sliding hinged in the other end of heavy frame's sliding movable frame, be used for connecting the detachable protective rail of fixed sliding movable frame and fixed movable frame, fixed movable frame is by two main girder rectangular hollow tube and multiple horizontal cross -linked square tube welded constitutes integral frame, main girder rectangular hollow tube is hollow nested type double -joint structure, is divided into upper segment L type structure and lower segment linear structure. The telescopic folding single -person operation platform for high altitude narrow slit operation of the utility model can solve the problems of large material consumption, complex installation and removal, low safety, poor turnover rate and weak adaptability in the high altitude structure construction of prior art, realize the safe and efficient construction of high altitude narrow slit operation.

Description

Technical Field

[0001] This utility model relates to the technical field of aerial work equipment, and in particular to a retractable and foldable single-person operating platform for aerial narrow-slit operations. Background Technology

[0002] In high-altitude structural construction, especially in wet joint areas where bottom, side, or inner formwork needs to be installed between precast beams, it is usually necessary to erect working platforms for construction workers to stand and work. The traditional approach is to use coupler-type steel pipe scaffolding or disc-lock scaffolding as the working platform support system when ground support conditions are available. Materials are rented and brought to the site, and the scaffolding is erected to the required height according to specifications. Then, guardrails are installed to complete the work surface layout.

[0003] However, in actual engineering projects, the following unfavorable situations are often encountered: the construction site is located in an open area, such as crossing a river or deep valley, making it impossible to set up ground-mounted scaffolding; the working surface at height is extremely narrow, making it difficult to deploy conventional operating platforms; if a tall support frame is forcibly erected, its height-to-width ratio will be too large, making it prone to instability, requiring a large number of anti-overturning bracing measures, resulting in temporary material inputs far exceeding the cost of the actual project; labor, material, and management costs increase significantly, and there are also significant safety risks.

[0004] Under such conditions, a self-made steel ladder combined with safety ropes is commonly used on-site for personnel to ascend and descend and for positioning operations. While simple, this method has many drawbacks: the ladder has poor stability and is prone to swaying; it only allows one-way passage and cannot provide a stable working platform; safety protection is weak, posing a high risk of falls from heights; it consumes a large amount of steel reinforcement, which cannot be reused, resulting in resource waste; and it is inconvenient to operate, affecting construction efficiency and quality control. Therefore, existing technologies for high-altitude structure construction suffer from problems such as large material consumption, complex installation and dismantling, low safety, poor turnover rate, and weak adaptability. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a telescopic and foldable single-person operating platform for high-altitude narrow gap operations, so as to solve the problems of large material consumption, complex installation and dismantling, low safety, poor turnover rate and weak adaptability in the existing high-altitude structure construction, and realize safe and efficient construction of high-altitude narrow gap operations.

[0006] To achieve the above objectives, this utility model provides a retractable and foldable single-person operating platform for high-altitude narrow-slit operations, comprising: a load-bearing frame serving as the overall load-bearing base of the platform; a fixed movable frame fixedly hinged to one end of the load-bearing frame; a sliding movable frame slidably hinged to the other end of the load-bearing frame; and a detachable protective railing for connecting and fixing the sliding movable frame and the fixed movable frame.

[0007] Preferably, the fixed movable frame is constructed by welding two main beam rectangular hollow tubes and multiple transverse connecting square tubes to form an integral frame; the main beam rectangular hollow tubes are hollow nested double-section structures, divided into an upper L-shaped structure and a lower straight structure; the top of the transverse connecting square tubes is covered with an anti-slip galvanized steel plate as a step panel; the lower straight structure is nested in the internal groove of the longer end of the upper L-shaped structure, and has a free extension and retraction function; the lower straight structure has multiple pin holes evenly spaced along the vertical direction within the extension and retraction range, and the longer end of the upper L-shaped structure also has multiple pin holes evenly spaced along the vertical direction, for adjusting and locking the working height.

[0008] Furthermore, a rectangular connecting block is provided at the bottom of the lower straight structure. The rectangular connecting block also has a pin hole. The pin at the left end of the load-bearing frame passes through the pin hole on the rectangular connecting block and is hinged and fixed to the load-bearing frame. The rectangular connecting block is used to increase the distance between the inner side of the fixed movable frame and the load-bearing frame, so that the inner lateral width of the fixed movable frame is equal to the outer lateral width of the sliding movable frame.

[0009] Furthermore, the load-bearing frame is a rectangular frame welded from equilateral angle steel, with the angle steel on its left and right sides being solid structures, and the angle steel on its front and rear sides having elliptical long sliding grooves on the vertical stiffening ribs to provide sliding guide tracks for the sliding movable frame; several distribution beams made of round steel are arranged at equal intervals in the middle of the load-bearing frame to enhance the load-bearing capacity and distribute the load.

[0010] Furthermore, the overall structure of the sliding movable frame is similar to that of the fixed movable frame, except that a sliding pin with a rolling bearing is additionally welded to the bottom end of its lower straight structure. The two ends of the sliding pin extend out from both sides of the lower straight structure and cooperate with the elliptical long slide grooves on the front and rear sides of the load-bearing frame. The rolling bearing is installed inside the elliptical long slide groove, and a roller is provided on the rolling bearing. The roller is located inside the elliptical long slide groove and contacts the bottom surface of the load-bearing frame, so that the sliding movable frame can slide smoothly in the horizontal direction under the guidance of the elliptical long slide groove of the load-bearing frame.

[0011] Furthermore, the detachable guardrail is a Z-shaped structure consisting of two horizontal bars, one diagonal brace, and several connecting clamps. The four ends of the Z-shaped structure are connected to the reserved pin holes of the fixed movable frame and the sliding movable frame by means of plugging or bolting, so that the entire platform forms a continuous enclosure structure.

[0012] Compared with existing technologies, the beneficial effects of this utility model's retractable and foldable single-person operating platform for high-altitude narrow-slit operations are as follows: 1. Highly adjustable in height: The height of the platform working surface can be flexibly adjusted according to the actual height of the narrow gap at high altitude through the free telescopic structure of the fixed movable frame, and locked through the pin hole to ensure that the structure is stable and does not shake.

[0013] 2. Convenient and efficient operation: The sliding pin at the bottom of the sliding frame cooperates with the elliptical long slide groove on the load-bearing frame to achieve rapid unfolding and folding of the platform, which is convenient for transportation, storage and reuse.

[0014] 3. The structure is stable and safe. The spatial truss load-bearing system, which is composed of a load-bearing frame, a fixed movable frame, and a sliding movable frame, has good overall rigidity and bending and shear resistance. When combined with detachable guardrails, it meets the relevant requirements of the "Technical Specification for Safety of High-Altitude Operations in Building Construction" (JGJ80).

[0015] 4. It saves resources and is environmentally friendly, avoiding the large amount of steel pipes, fasteners and labor required by traditional full-span scaffolding, reducing steel waste. All components can be standardized in the factory, simple on-site assembly, and support multiple reuses.

[0016] 5. It has a wide range of applications, especially suitable for narrow high-altitude working environments such as wet joints of bridges, tunnel inspection ports, and gaps in high-rise buildings. It is particularly suitable for sections crossing water or valleys where it is impossible to install ground supports.

[0017] 6. Reduce safety risks, provide a stable operating platform and a complete protection system, eliminate safety hazards such as instability and slippage caused by ladder climbing operations, and greatly improve the safety level of high-altitude operations.

[0018] 7. Saves construction time and costs, with short installation and dismantling times, no need for complex foundation treatment and scaffolding erection procedures, significantly shortens the non-physical construction cycle, and has outstanding overall economic benefits. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of the retractable and foldable single-person operating platform for high-altitude narrow-slit operations of this utility model when it is in the unfolded state. Figure 2 This is a structural schematic diagram of the platform of this utility model when it is in a folded state; Figure 3 This is a structural schematic diagram of the load-bearing frame of this utility model; Figure 4This is a cross-sectional view of the rectangular hollow tube of the main beam of this utility model; Figure 5 This is a partial enlarged view of the connection between the sliding pin and the elliptical long slide groove of this utility model; Figure 6 This is a partial enlarged view of the connection node of the detachable guardrail of this utility model; Figure 7 This is a structural schematic diagram of the detachable railing of this utility model; Figure 8 This is one of the platform folding state diagrams of this utility model; Figure 9 This is the second diagram of the platform in folded state of this utility model; Figure 10 This is the third diagram of the platform folding state of this utility model.

[0021] In the picture: 1-Fixed movable frame; 2-Sliding movable frame; 3-Load-bearing frame; 4-Removable guardrail. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: See below. Figures 1-10 This invention provides a detailed description of a retractable and foldable single-person operating platform for high-altitude narrow-slit operations.

[0024] This utility model discloses a retractable and foldable single-person operating platform for high-altitude narrow-slit operations, such as... Figure 1 As shown, it includes a load-bearing frame 3 that serves as the overall load-bearing base of the platform, a fixed movable frame 1 that is fixedly hinged to one end of the load-bearing frame 3, a sliding movable frame 2 that is slidably hinged to the other end of the load-bearing frame 3, and a detachable guardrail 4 for connecting the fixed sliding movable frame 2 and the fixed movable frame 1.

[0025] like Figures 2-5As shown, the fixed movable frame 1 is constructed from two main rectangular hollow tubes and multiple transverse connecting square tubes welded together to form an overall frame. The main rectangular hollow tubes are hollow nested double-section structures, divided into an upper L-shaped structure and a lower straight structure. The lower straight structure is nested within the internal groove of the longer end of the upper L-shaped structure, allowing for free extension and retraction. Within the extension and retraction range, the lower straight structure has multiple equally spaced pin holes along the vertical direction. Similarly, the longer end of the upper L-shaped structure also has multiple equally spaced pin holes along the vertical direction, used to adjust and lock the working height. A rectangular connecting block is provided at the bottom, which also has a pin hole. The pin at the left end of the load-bearing frame 3 passes through this pin hole, hinged and fixed to the load-bearing frame 3. This rectangular connecting block increases the distance between the inner side of the fixed movable frame 1 and the load-bearing frame 3, making the inner lateral width of the fixed movable frame 1 equal to the outer lateral width of the sliding movable frame 2, thus allowing the fixed movable frame 1, sliding movable frame 2, and load-bearing frame 3 to stack together when the platform is folded. The top of the horizontally connecting square tube is covered with a non-slip galvanized steel plate as a step panel. Here, "front," "rear," "left," and "right" are all... Figure 3 Based on.

[0026] The overall structure of the sliding movable frame 2 is similar to that of the fixed movable frame 1. The difference is that the bottom of its lower straight structure is additionally welded with a sliding pin with a rolling bearing. The two ends of the sliding pin extend out of the two sides of the lower straight structure and cooperate with the elliptical long slide grooves on the front and rear sides of the load-bearing frame 3. The rolling bearing of the sliding pin is installed inside the elliptical long slide groove, and a roller is provided on the rolling bearing. The roller is located inside the elliptical long slide groove and contacts the bottom surface of the load-bearing frame 3. This allows the sliding movable frame 2 to slide smoothly in the horizontal direction under the guidance of the elliptical long slide groove of the load-bearing frame 3, so that the sliding movable frame 2 can move linearly relative to the load-bearing frame 3 during the unfolding and folding of the platform.

[0027] The load-bearing frame 3 is a rectangular frame welded from equilateral angle steel. The angle steel on the left and right sides is a solid structure. The angle steel on the front and rear sides has elliptical long sliding grooves on the vertical stiffening ribs to provide sliding guide rails for the sliding movable frame 2. Several distribution beams made of round steel are arranged at equal intervals in the middle of the load-bearing frame 3 to enhance the load-bearing capacity and distribute the load.

[0028] like Figures 6-7 As shown, the detachable guardrail 4 is a Z-shaped structure consisting of two horizontal bars, one diagonal brace, and several connecting clamps. The four ends of the Z-shaped structure are connected to the reserved pin holes of the fixed movable frame 1 and the sliding movable frame 2 by plugging or bolting, so that the entire platform forms a continuous enclosure structure, thereby improving the overall stability and fall prevention capability.

[0029] Below, refer to Figures 1 to 10Based on the above description of structural features, the working principle of the retractable and foldable single-person operating platform for high-altitude narrow-slit operations of this utility model will be explained in detail: 1. When the platform expands, such as Figure 1 As shown, the sliding movable frame 2 is pushed along the elliptical long slide groove to the end of the load-bearing frame 3 that is furthest from the fixed movable frame 1. The fixed movable frame 1 and the sliding movable frame 2 are adjusted to be parallel and aligned and perpendicular to the load-bearing frame 3. The extension distance of the upper L-shaped structure of the fixed movable frame 1 and the sliding movable frame 2 on the lower straight structure is adjusted, and the threaded pin is inserted into the corresponding pin hole. It is fixed and locked with a nut. The detachable guardrail 4 is connected to the reserved pin holes of the fixed movable frame 1 and the sliding movable frame 2 by plugging or bolting, so that the fixed movable frame 1, the sliding movable frame 2, the load-bearing frame 3, and the detachable guardrail 4 together form a stable maintenance structure. Finally, it is transported to the high-altitude work point by manual handling or external hoisting equipment such as tower cranes or truck cranes. It is then directly suspended on the top surface concrete or embedded parts of the precast beam through the upper L-shaped structure of the fixed movable frame 1 and the sliding movable frame 2, without the need for ground support.

[0030] 2. When the platform is folded, such as Figures 8-10 As shown, the detachable guardrail 4 is removed, and the sliding movable frame 2 is pushed in the opposite direction to fold inward. At the same time, the fixed movable frame 1 and the load-bearing frame 3 are rotated, so that the fixed movable frame 1, the sliding movable frame 2, and the load-bearing frame 3 are stacked together to form a compact structure. Then, the frame is hoisted by passing a hoisting rope through the horizontal connecting square tube at the top of the fixed movable frame 1 and the sliding movable frame 2.

[0031] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any transformations or substitutions that can be understood by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of this utility model.

Claims

1. A retractable and foldable single-person operating platform for high-altitude narrow-slit operations, characterized in that, include: The platform consists of a load-bearing frame (3) serving as the overall load-bearing base, a fixed movable frame (1) fixedly hinged to one end of the load-bearing frame (3), a sliding movable frame (2) slidably hinged to the other end of the load-bearing frame (3), and a detachable guardrail (4) for connecting and fixing the sliding movable frame (2) and the fixed movable frame (1).

2. The telescopic and foldable single-person operating platform for high-altitude narrow-slit operations according to claim 1, characterized in that, The fixed movable frame (1) is composed of two main beam rectangular hollow tubes and multiple transverse connecting square tubes welded together to form an overall frame; the main beam rectangular hollow tube is a hollow nested double-section structure, divided into an upper L-shaped structure and a lower straight structure; the top of the transverse connecting square tube is covered with an anti-slip galvanized steel plate as a step panel. The lower straight structure is nested in the internal groove of the longer end of the upper L-shaped structure, and has a free extension and retraction function; the lower straight structure has multiple pin holes at equal intervals along the vertical direction within the extension and retraction range, and the longer end of the upper L-shaped structure also has multiple pin holes at equal intervals along the vertical direction, for adjusting and locking the working height.

3. The telescopic and foldable single-person operating platform for high-altitude narrow-slit operations according to claim 2, characterized in that, The bottom of the lower straight structure is provided with a rectangular connecting block, which is also provided with a pin hole. The pin at the left end of the load-bearing frame (3) passes through the pin hole on it and is hinged to the load-bearing frame (3). The rectangular connecting block is used to increase the distance between the inner side of the fixed movable frame (1) and the load-bearing frame (3), so that the inner lateral width of the fixed movable frame (1) is equal to the outer lateral width of the sliding movable frame (2).

4. The telescopic and foldable single-person operating platform for high-altitude narrow-slit operations according to claim 3, characterized in that, The load-bearing frame (3) is a rectangular frame welded from equilateral angle steel. The angle steel on its left and right sides is a solid structure. The angle steel on its front and rear sides has an elliptical long sliding groove on the vertical stiffening rib, which is used to provide the sliding guide track of the sliding movable frame (2). Several distribution beams made of round steel are arranged at equal intervals in the middle of the load-bearing frame (3) to enhance the load-bearing capacity and distribute the load.

5. The telescopic and foldable single-person operating platform for high-altitude narrow-slit operations according to claim 4, characterized in that, The overall structure of the sliding movable frame (2) is similar to that of the fixed movable frame (1), except that a sliding pin with a rolling bearing is additionally welded to the bottom end of the lower straight structure. The two ends of the sliding pin extend out of the two sides of the lower straight structure and cooperate with the elliptical long slide grooves on the front and rear sides of the load-bearing frame (3). The rolling bearing is installed inside the elliptical long slide groove, and a roller is provided on the rolling bearing. The roller is located inside the elliptical long slide groove and contacts the bottom surface of the load-bearing frame (3), so that the sliding movable frame (2) can slide smoothly in the horizontal direction under the guidance of the elliptical long slide groove of the load-bearing frame (3).

6. The telescopic and foldable single-person operating platform for high-altitude narrow-slit operations according to claim 5, characterized in that, The detachable guardrail (4) is a Z-shaped structure consisting of two horizontal bars, one diagonal brace and several connecting clamps. The four ends of the Z-shaped structure are connected to the reserved pin holes of the fixed movable frame (1) and the sliding movable frame (2) by plugging or bolting, so that the entire platform forms a continuous enclosure structure.

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