Working platform integrating lifting, distributing and lifting functions
By integrating guide rails, work platforms, lifting frames, and crane booms, the existing platform's issues of material placement, safety, and adaptability have been resolved, enabling self-service material placement, safe transportation, and aerial dismantling, while adapting to changes in building height and curvature.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN HENGXIN CONSTR MASCH MFG CO LTD
- Filing Date
- 2025-02-18
- Publication Date
- 2026-04-14
AI Technical Summary
Existing truss-type hydraulic jacking work platforms cannot achieve self-service material placement, pose a risk of falling from heights, have a large installation footprint, cannot dismantle the crane arm in mid-air, and cannot adapt to changes in building height and curvature.
A work platform integrating a guide rail frame, working platform, lifting frame, lifting boom, concrete pumping device, movable counterweight, and aerial boom dismantling system was designed to enable self-service material placement, safe transportation of personnel and materials, reduce equipment footprint, adapt to changes in building height and curvature, and dismantle the lifting boom in mid-air.
It achieves 360° full coverage concrete pumping, avoiding falls from heights. The equipment is compactly installed, highly adaptable, and can dismantle the crane boom without lowering it to the ground.
Smart Images
Figure CN224119928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a working platform that integrates lifting, material placement and hoisting functions. Background Technology
[0002] Curved structures such as cooling towers and chimneys in power construction projects are typical irregularly shaped tall structures with gradually changing curvature, and have the following characteristics: 1) During construction, the construction work surface is circular, with a large work area and many types of work, often involving overlapping operations, requiring the transportation of a large number of construction workers, equipment, and materials; 2) The horizontal radius of the work area changes continuously with the increase of the vertical height, making it difficult to achieve a good connection between the end of the horizontal channel and the work point; 3) The vertical height of the building is large, resulting in poor overall stability of the equipment.
[0003] Due to the characteristics of the building and the numerous safety hazards present during construction, truss-type hydraulic jacking work platforms or hydraulic jacking flat bridges are generally used to assist in building construction. Existing truss-type hydraulic jacking work platforms are often used in conjunction with construction hoists. The construction hoist vertically transports personnel and materials from the ground to a suitable height, and then the truss-type hydraulic jacking work platform horizontally transports the construction personnel and materials to the working surface at the same height.
[0004] However, existing truss-type hydraulic jacking work platforms have the following disadvantages: 1) The equipment does not have a concrete placement function. Concrete can only be transported to the work platform by a working elevator, and then pushed to the required position by a trolley; 2) There is a risk of personnel falling from height. After the construction personnel reach the working height by elevator, they need to open the cage door to enter the work platform. The cage is outside the walkway, which increases the risk of falling from height; 3) The equipment installation occupies a large area. The elevator is a separate guide rail frame, which is attached to the outside of the work platform guide rail frame. It needs to be extended outward from the installation position of the work platform by more than the length of the cage; 4) The lifting arm cannot complete the aerial dismantling operation. The lifting arm can only be dismantled after the standard section of the guide rail frame is removed to the vicinity of the ground. Utility Model Content
[0005] The purpose of this utility model is to provide a work platform that integrates lifting, fabric laying and hoisting functions, thereby solving the above-mentioned problems existing in the prior art.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] This utility model discloses a work platform integrating lifting, placing, and hoisting functions, including a guide rail frame, a working platform, a lifting sleeve, a first turntable, a lifting boom, a concrete pumping device, a movable counterweight, and an aerial boom dismantling system. The guide rail frame includes several interconnected standard guide rail sections. The working platform is connected to the lifting sleeve, which is movably sleeved on the guide rail frame and located above the working platform. The working platform is connected to the lifting sleeve via a tie rod. The lifting sleeve includes a sleeve body and a lifting cylinder. Lifting cylinders are symmetrically installed on both sides of the frame body. The upper opening of the frame body is the introduction position of the guide rail standard section. The lifting cylinders can lift the frame body to install the guide rail standard section. The top of the lifting frame is connected to the first turntable. The lifting arm is installed on the first turntable. The concrete pumping device is connected to the lower part of the lifting arm. The movable counterweight is set in the structural frame of the rear arm of the lifting arm and can move back and forth along the rear arm. The aerial dismantling system is detachably installed on the lifting arm.
[0008] Furthermore, the working platform includes a front axle, a rear axle, a side platform, and a tie rod. The front axle and the rear axle are connected by the symmetrically arranged side platforms. The front axle, the rear axle, and the side platforms each include several interconnected platform standard sections.
[0009] Furthermore, a lift is installed inside the side platform of the work platform, and the lift moves up and down along the main chord of the standard section of the guide rail frame.
[0010] Furthermore, the sleeve body is a rectangular frame structure welded from steel profiles, and the front side of the sleeve body is connected to the front axle via the tie rod, and the rear side is connected to the rear axle via the tie rod.
[0011] Furthermore, the boom includes a hook, a luffing trolley, a boom body, a luffing mechanism, a counterweight boom, and a hoisting mechanism. The boom body and the counterweight boom are respectively installed on both sides of the first turntable. The luffing mechanism is fixedly installed inside the boom body. The hoisting mechanism is connected to the counterweight boom. The boom body includes several interconnected boom sections. A lower chord is provided at the bottom of each boom section. The luffing trolley is installed on the lower chord and is used to horizontally move the hook to perform horizontal luffing and to release the hook onto the working platform to lift heavy objects.
[0012] Furthermore, the crane boom body adopts a flat-headed boom frame form, which is a triangular and rectangular variable cross-section structure composed of steel sections.
[0013] Furthermore, the aerial boom dismantling system includes a boom dismantling boom, a boom frame, and a guide wheel assembly. Both the boom dismantling boom and the boom frame are separate structures. The boom frame is connected to the luffing trolley via a pin. The boom dismantling boom is fixedly connected to the boom frame. The guide wheel assembly is installed at the bottom of the boom section adjacent to the boom section to be dismantled.
[0014] Furthermore, the concrete pumping device includes a vertical pipe, a horizontal pipe, a second turntable, and a horizontal beam. The horizontal beam is installed at the bottom of the rear arm of the crane boom. The second turntable is connected to the end of the horizontal beam. Part of the horizontal pipe is installed on the horizontal beam and connected to the vertical pipe, while the other part is rotatable via the second turntable. The vertical pipe is attached to the standard section of the guide rail frame.
[0015] Furthermore, the movable counterweight includes a lead screw module, a counterweight trolley, and a counterweight body. The counterweight body is installed inside the counterweight trolley, and the lead screw module is located at the bottom of the counterweight trolley. The lead screw module can drive the counterweight trolley to move back and forth along the rear arm.
[0016] Furthermore, the guide rail frame, the working platform, the lifting frame, the first turntable, the lifting boom, the movable counterweight, and the aerial boom dismantling system are all truss structures welded from structural steel.
[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0018] This utility model's integrated lifting, concrete placement, and hoisting work platform can be applied to curved, irregularly shaped, tall, thin-walled buildings such as chimneys, and mainly solves the following problems: 1) It requires transporting personnel, pumping concrete, hoisting steel bars and other building materials and equipment, resulting in multiple overlapping operations; 2) The space at the bottom of the building is limited, and the available installation positions are small; 3) The curvature of the construction working surface changes continuously with the height of the building operation, and the height and horizontal length of the work platform cannot be adjusted in time according to the actual height and horizontal working radius required by the building working surface; 4) The construction height is large, and the amount of concrete required is large; 5) The lifting arm cannot be lowered to the ground for dismantling.
[0019] This utility model's work platform integrates lifting, material placement, and hoisting functions, combining three functions into one: efficient lifting of construction materials, safe transportation of workers, and self-service concrete pumping. By incorporating a guide rail frame, work platform, lifting sleeve, first turntable, lifting boom, concrete pumping device, movable counterweight, and aerial boom dismantling system, it achieves the following objectives:
[0020] 1. Features self-service concrete placement: No additional concrete conveying equipment is required; 360° full-coverage concrete pumping can be achieved using the concrete pumping device attached to the guide rail frame and balance arm.
[0021] 2. High personnel safety: The elevator is installed inside the side platform of the work platform, and personnel can directly enter the front and rear bridges after exiting the cage, avoiding the risk of falling from a height;
[0022] 3. The equipment has a compact installation location: the guide rail frame of the work platform also serves as the running guide rail of the elevator. The elevator used in conjunction with the equipment does not require additional installation space. The work platform, elevator, and concrete pumping device share a set of guide rail frames, which occupies a small area and reduces the need for the floor inside the chimney when the equipment is installed and used.
[0023] 4. Good adaptability of the work platform: The work platform is made up of short-length standard platform sections connected by pins. The horizontal length of the platform sections can be quickly extended or shortened according to the change of the radius of the work surface, making the platform more adaptable.
[0024] 5. Adjustable counterweight: By adjusting the adjustable counterweight, the bending moment of the lifting arm can be balanced under different fabric conditions, avoiding excessive forward or backward tilting.
[0025] 6. Aerial dismantling of boom: By setting up a dedicated boom dismantling system, the boom and forearm can be dismantled section by section in the air. Even when the work site does not meet the requirements for lowering the boom to the ground for dismantling, the dismantling work can still be completed. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.
[0027] Figure 1 This is a schematic diagram of the overall structure of the work platform of this utility model, which integrates lifting, fabric placement and hoisting functions.
[0028] Figure 2 This is a structural schematic diagram of the standard section of the guide rail frame in the work platform of this utility model, which integrates lifting, fabric placement, and hoisting functions.
[0029] Figure 3 This is a schematic diagram of the working platform in the work platform of this utility model, which integrates lifting, material placement and hoisting functions.
[0030] Figure 4This is a structural schematic diagram of a standard section of the platform in the work platform of this utility model, which integrates lifting, fabric placement, and hoisting functions.
[0031] Figure 5 This is a schematic diagram of the lifting frame in the work platform of this utility model, which integrates lifting, material placement and hoisting functions.
[0032] Figure 6 This is a structural schematic diagram of the concrete pumping device in the work platform of this utility model, which integrates lifting, placing and hoisting functions.
[0033] Figure 7 This is a schematic diagram of the movable counterweight in the work platform of this utility model, which integrates lifting, cloth-laying and hoisting functions.
[0034] Figure 8 This is a schematic diagram of the structure of the lifting arm in the work platform of this utility model, which integrates lifting, material placement and hoisting functions.
[0035] Figure 9 This is a schematic diagram of the structure of the lifting arm body in the work platform of this utility model, which integrates lifting, material placement and hoisting functions.
[0036] Figure 10 This is a schematic diagram of the boom section of the work platform of this utility model, which integrates lifting, material placement and hoisting functions.
[0037] Figure 11 This is a structural diagram of the aerial boom dismantling system in the work platform of this utility model, which integrates lifting, fabric placement, and hoisting functions.
[0038] Explanation of reference numerals in the attached drawings: 1. Guide rail frame; 2. Working platform; 2.1. Front axle; 2.2. Side platform; 2.3. Rear axle; 2.4. Tie rod; 3. Lifting frame; 3.1. Frame body; 3.2. Lifting cylinder; 3.3. Tie rod lug; 4. First turntable; 5. Concrete pumping device; 5.1. Vertical pipe; 5.2. Horizontal pipe; 5.3. Second turntable; 5.4. Horizontal beam; 6. Movable counterweight; 7. 1. Screw module; 6.2. Counterweight trolley; 6.3. Counterweight body; 7. Lifting boom; 7.1. Hook; 7.2. Luffing trolley; 7.3. Lifting boom body; 7.3.1. Boom section; 7.3.1.1. Lower chord; 7.4. Luffing mechanism; 7.5. Counterweight boom; 7.6. Lifting mechanism; 8. Overhead boom dismantling system; 8.1. Boom dismantling boom; 8.2. Boom frame; 8.3. Guide wheel assembly; 9. Attachments. Detailed Implementation
[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0040] In the description of this utility model, it should be understood that the terms "length," "width," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] like Figures 1 to 11 As shown, the work platform integrating lifting, placing, and hoisting functions in this embodiment includes a guide rail frame 1, a working platform 2, a lifting sleeve 3, a first turntable 4, a lifting boom 7, a concrete pumping device 5, a movable counterweight 6, and an aerial boom dismantling system 8. The guide rail frame 1 comprises several interconnected standard guide rail sections, the structural arrangement of which is as follows: Figure 2As shown, preferably, the guide rail frame 1 is formed by bolting together several standard guide rail frames of a fixed length. In this case, the working platform 2 is connected to the lifting sleeve 3. The working platform 2 is a horizontal passage or temporary storage platform for personnel, materials and tools. The lifting sleeve 3 is movably sleeved on the guide rail frame 1 and located above the working platform 2. The working platform 2 is connected to the lifting sleeve 3 through tie rods 2.4. The guide rail frame 1 can provide support for the lifting sleeve 3, concrete pumping device 5, working platform 2 and elevator, etc., and transfer the vertical load it bears to the foundation. It can also provide installation guide rails and running tracks for the elevator and provide attachment positions for the concrete pumping device 5. It has the advantage of small installation footprint.
[0043] Among them, such as Figure 5 As shown, the lifting frame 3 includes a frame body 3.1 and a lifting cylinder 3.2. The lifting cylinder 3.2 is symmetrically installed on the front and rear sides of the frame body 3.1. The upper opening of the frame body 3.1 is the introduction position for the standard section of the guide rail frame. The lifting cylinder 3.2 can lift the frame body 3.1 to install the standard section of the guide rail frame. The lifting frame 3 can provide lifting power for the raising and adding of sections of the guide rail frame 1. Through multiple lifting and adding sections, it can be raised to the required construction working height. A first turntable 4 is connected to the top of the lifting frame 3. The lifting arm 7 is installed on the first turntable 4. The lifting arm 7 can lift construction materials such as steel bars from the bottom to the working surface. The concrete pumping device 5 is connected to the lower part of the lifting arm 7. The movable counterweight 6 is set in the structural frame of the rear arm of the lifting arm 7 and can move back and forth along the rear arm. An aerial dismantling system 8 is detachably installed on the lifting arm 7.
[0044] In this embodiment, as Figure 3 As shown, the work platform 2 includes a front axle 2.1, a rear axle 2.3, a side platform 2.2, and a tie rod 2.4. The front axle 2.1 and the rear axle 2.3 are connected by symmetrically arranged side platforms 2.2. The front axle 2.1, the rear axle 2.3, and the side platform 2.2 each include several interconnected platform standard sections. The structural arrangement of the platform standard sections is as follows: Figure 4 As shown, preferably, the working platform 2 consists of several platform standard sections of equal length and pins. This configuration allows for quick and real-time assembly and disassembly of the platform standard sections according to the actual needs of the curvature changes corresponding to the working surface, thereby increasing or decreasing the horizontal length of the bearing platform. The length of the working platform 2 can quickly adapt to changes in the radius of the working surface. At the same time, due to the adoption of a small modular design, the structural units are relatively short and connected to each other by pins, making operation simple, requiring less skill from loading and unloading personnel, and resulting in high assembly and disassembly efficiency. This better meets the needs of increasing or decreasing the length of the working platform 2 due to the continuous increase in chimney height.
[0045] Furthermore, a hoist is installed inside the side platform 2.2 of the work platform 2. The hoist moves up and down along the main chord of the standard section of the guide rail frame. Using the hoist attached to the guide rail frame 1, personnel can be vertically transported a certain distance before reaching the target work surface via the work platform 2. Because the hoist cage is surrounded inside the side platform 2.2 of the work platform 2, personnel entering the work platform 2 remain on a flat surface, eliminating the risk of falling from a height. At this time, the vibrations generated during concrete pumping and hoist operation are directly transmitted to the foundation, all concentrated near the center of the guide rail frame 1. The equipment has low overall noise and good overall stability. The hoist can be a standard construction hoist, or it can be replaced by a multi-functional hoist or industrial elevator, or other vertical transportation machinery with personnel vertical transport capabilities.
[0046] Specifically, the frame body 3.1 is a rectangular frame structure welded from steel profiles, and the front and rear sides of the frame body 3.1 are respectively provided with tie rod lugs 3.3. The front side is connected to the front axle 2.1 through tie rod 2.4, and the rear side is connected to the rear axle 2.3 through tie rod 2.4.
[0047] In this embodiment, as Figure 8 As shown, the lifting boom 7 includes a hook 7.1, a luffing trolley 7.2, a lifting boom body 7.3, a luffing mechanism 7.4, a counterweight boom 7.5, and a hoisting mechanism 7.6. The lifting boom body 7.3 and the counterweight boom 7.5 are respectively installed on both sides of the first turntable 4. The luffing mechanism 7.4 is fixedly installed inside the lifting boom body 7.3. The hoisting mechanism 7.6 is connected to the counterweight boom 7.5, as shown. Figure 9 As shown, the crane boom body 7.3 includes several interconnected boom sections 7.3.1, specifically, as follows: Figure 10 As shown, the bottom of the boom section 7.3.1 is equipped with a lower chord 7.3.1.1, and the luffing trolley 7.2 is mounted on the lower chord 7.3.1.1 for horizontally moving the hook 7.1 to perform horizontal luffing and for releasing the hook 7.1 onto the work platform 2 for lifting heavy objects. The boom body 7.3 adopts a flat-head boom form, which is a triangular and rectangular variable cross-section structure composed of steel sections.
[0048] In addition, such as Figure 6As shown, the concrete pumping device 5 includes a vertical pipe 5.1, a horizontal pipe 5.2, a second turntable 5.3, and a horizontal beam 5.4. The horizontal beam 5.4 is installed at the bottom of the rear boom of the lifting arm 7. The second turntable 5.3 is connected to the end of the horizontal beam 5.4, allowing the horizontal beam 5.4 to rotate around the center of the second turntable 5.3. Part of the horizontal pipe 5.2 is installed on the horizontal beam 5.4 and connected to the vertical pipe 5.1, while the other part can rotate through the second turntable 5.3. The vertical pipe 5.1 is attached to the standard section of the guide rail frame. Concrete is pumped from the bottom into the vertical pipe 5.1 through the vertical pipe 5.1 installed on the guide rail frame 1. The concrete inside the pipe can be pumped to the desired location along the vertical pipe 5.1 and the horizontal pipe 5.2. Since the horizontal pipe 5.2 can rotate around the center of the second turntable 5.3, a 360° full coverage of the chimney working surface can be achieved through the combined action of the first turntable 4 and the second turntable 5.3.
[0049] In this embodiment, as Figure 7 As shown, the movable counterweight 6 includes a screw module 6.1, a counterweight trolley 6.2, and a counterweight body 6.3. The counterweight body 6.3 is installed inside the counterweight trolley 6.2. The screw module 6.1 is located at the bottom of the counterweight trolley 6.2. The screw module 6.1 can drive the counterweight trolley 6.2 to move back and forth along the rear arm. The movable counterweight 6 can balance the bending moment of the lifting arm 7 under different fabric conditions, avoid excessive forward or backward tilting, and further improve the overall stability.
[0050] And, as Figure 11 As shown, the aerial boom dismantling system 8 includes a boom dismantling boom 8.1, a boom frame 8.2, and a guide wheel assembly 8.3. Both the boom dismantling boom 8.1 and the boom frame 8.2 are separate structures. The boom frame 8.2 is connected to the luffing trolley 7.2 via a pin, and the boom dismantling boom 8.1 is bolted to the boom frame 8.2. The guide wheel assembly 8.3 is installed at the bottom of the boom section 7.3.1 adjacent to the boom section to be dismantled. Optionally, the boom dismantling boom 8.1 can be fixed to the luffing trolley 7.2 via the boom frame 8.2, or it can be directly fixed to the luffing trolley 7.2.
[0051] In this embodiment, when it is necessary to dismantle the boom body 7.3, the aerial dismantling system 8 is moved to the boom section 7.3.1 behind the boom section to be dismantled, the luffing trolley 7.2 is fixed, the guide wheel assembly 8.3 is installed, the luffing wire rope and the hoisting wire rope are re-fixed, and the wire rope on the dismantling boom 8.1 is connected to the lifting lug of the boom section to be dismantled. The wire rope on the dismantling boom 8.1 is raised so that the wire rope is just under tension. At this time, the pin at the connection of the boom section 7.3.1 is removed. After removing the pin, the dismantled boom section is rotated a certain angle by the dismantling boom 8.1 and the dismantling boom 8.1 is fixed. Then the fixed state of the luffing trolley 7.2 is released, and the luffing mechanism 7.4 drives the luffing trolley 7.2 to the boom root. The dismantled boom section is then placed on the working platform 2. This process is repeated to complete the dismantling operation. By setting up the aerial dismantling system 8, it is not necessary to lower the boom 7 to the ground to complete the dismantling work, thus avoiding the problem that the boom 7 cannot be lowered as a whole for dismantling due to the limitations of the work site.
[0052] Preferably, the guide rail frame 1, the working platform 2, the lifting frame 3, the first turntable 4, the lifting boom 7, the movable counterweight 6, and the aerial boom dismantling system 8 are all truss structures welded from steel profiles.
[0053] In this embodiment, an attachment 9 is also included, which can anchor the entire working platform to the chimney wall.
[0054] In this embodiment, the work platform, which integrates lifting, material placement, and hoisting functions, is installed inside a tall, irregularly shaped structure such as a chimney. A truck crane or similar equipment is used to install the foundation height guide rail section. After attaching the lifting frame 3 and connecting the work platform 2, power is provided by hydraulic cylinders to increase the overall height of the equipment via the lifting frame 3. Once the end of the work platform 2 is flush with the work surface, it is securely locked. At this point, personnel, materials, and construction tools transported vertically from the ground via a hoist can be safely moved horizontally to the work position at the construction height via the work platform 2. To transport personnel, materials, or small tools, the guide rails of the work platform are... 1. Install one or two construction hoists. After the hoist reaches the designated height, personnel inside the cage can open the cage door to enter the side walkway and then easily and quickly reach the construction work surface via the work platform 2. The concrete pumping device 5 attached to the standard section of the guide rail frame can pump concrete from the bottom to the required height. The horizontal pipe 5.2 can rotate around the center of the second turntable 5.3. At this time, through the combined action of the first turntable 4 and the second turntable 5.3, full coverage of material placement within a 360° range can be achieved. The hook 7.1 on the boom 7 can quickly lift construction materials such as steel bars from the bottom to the work point.
[0055] This utility model's integrated work platform combines lifting, material placement, and hoisting functions, enabling efficient lifting of construction materials, safe transportation of workers, and self-service concrete pumping. It eliminates the need for additional concrete conveying equipment, achieving 360° full-coverage concrete pumping using a concrete pumping device attached to the guide rail frame and counterweight arm. Simultaneously, the hoist is installed inside the side platform of the work platform, allowing personnel to directly access the front and rear axles after exiting the cage, preventing falls from heights. The work platform's guide rail frame also serves as the hoist's running rail, eliminating the need for additional installation space. The work platform, hoist, and concrete pumping device share a single guide rail frame, minimizing footprint. Furthermore, the work platform is constructed from short-length standard platform sections connected by pins, allowing for quick adjustment of the horizontal length of each section to accommodate changes in the work surface radius, thus enhancing the platform's adaptability. A dedicated boom dismantling system enables the jib to be dismantled section by section in the air, allowing for dismantling even when the work site does not allow for lowering the boom to the ground for dismantling.
[0056] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A work platform integrating lifting, fabric placement, and hoisting functions, characterized in that, The system includes a guide rail frame, a working platform, a lifting sleeve, a first turntable, a lifting boom, a concrete pumping device, a movable counterweight, and an aerial boom dismantling system. The guide rail frame comprises several interconnected standard guide rail sections. The working platform is connected to the lifting sleeve, which is movably fitted onto the guide rail frame and positioned above the working platform. The working platform is connected to the lifting sleeve via tie rods. The lifting sleeve includes a sleeve body and lifting cylinders, which are symmetrically installed on both sides of the sleeve body. The upper opening of the sleeve body serves as the insertion position for the standard guide rail sections. The lifting cylinders can lift the sleeve body to install the standard guide rail sections. The top of the lifting sleeve is connected to the first turntable, and the lifting boom is mounted on the first turntable. The concrete pumping device is connected to the lower part of the lifting boom. The movable counterweight is located within the structural frame of the rear arm of the lifting boom and can move back and forth along the rear arm. The aerial boom dismantling system is detachably mounted on the lifting boom.
2. The work platform integrating lifting, fabric placement, and hoisting functions according to claim 1, characterized in that, The working platform includes a front axle, a rear axle, a side platform, and tie rods. The front axle and the rear axle are connected by the symmetrically arranged side platforms. The front axle, the rear axle, and the side platforms each include several interconnected platform standard sections.
3. A work platform integrating lifting, fabric placement, and hoisting functions according to claim 2, characterized in that, The side platform of the work platform is equipped with a lift, which moves up and down along the main chord of the standard section of the guide rail frame.
4. A work platform integrating lifting, fabric placement, and hoisting functions according to claim 2, characterized in that, The sleeve body is a rectangular frame structure welded from steel profiles, and the front side of the sleeve body is connected to the front axle through the tie rod, and the rear side is connected to the rear axle through the tie rod.
5. A work platform integrating lifting, fabric placement, and hoisting functions according to claim 1, characterized in that, The boom includes a hook, a luffing trolley, a boom body, a luffing mechanism, a counterweight boom, and a hoisting mechanism. The boom body and the counterweight boom are respectively installed on both sides of the first turntable. The luffing mechanism is fixedly installed inside the boom body. The hoisting mechanism is connected to the counterweight boom. The boom body includes several interconnected boom sections. A lower chord is provided at the bottom of each boom section. The luffing trolley is installed on the lower chord and is used to horizontally move the hook to perform horizontal luffing and to release the hook onto the working platform to lift heavy objects.
6. A work platform integrating lifting, fabric placement, and hoisting functions according to claim 5, characterized in that, The crane boom body adopts a flat-headed boom frame form, which is a triangular and rectangular variable cross-section structure composed of steel sections.
7. A work platform integrating lifting, fabric placement, and hoisting functions according to claim 5, characterized in that, The aerial boom dismantling system includes a boom dismantling boom, a boom frame, and a guide wheel assembly. Both the boom dismantling boom and the boom frame are separate structures. The boom frame is connected to the luffing trolley via a pin. The boom dismantling boom is fixedly connected to the boom frame. The guide wheel assembly is installed at the bottom of the boom section adjacent to the boom section to be dismantled.
8. A work platform integrating lifting, fabric placement, and hoisting functions according to claim 1, characterized in that, The concrete pumping device includes a vertical pipe, a horizontal pipe, a second turntable, and a horizontal beam. The horizontal beam is installed at the bottom of the rear arm of the crane boom. The second turntable is connected to the end of the horizontal beam. Part of the horizontal pipe is installed on the horizontal beam and connected to the vertical pipe, while the other part is rotatable via the second turntable. The vertical pipe is attached to the standard section of the guide rail frame.
9. A work platform integrating lifting, fabric placement, and hoisting functions according to claim 1, characterized in that, The movable counterweight includes a lead screw module, a counterweight trolley, and a counterweight body. The counterweight body is installed inside the counterweight trolley, and the lead screw module is provided at the bottom of the counterweight trolley. The lead screw module can drive the counterweight trolley to move back and forth along the rear arm.
10. A work platform integrating lifting, fabric placement, and hoisting functions according to any one of claims 1-9, characterized in that, The guide rail frame, the working platform, the lifting frame, the first turntable, the lifting boom, the movable counterweight, and the aerial boom dismantling system are all truss structures welded from steel profiles.