Low-gravity-center lead screw type intelligent lifting working platform

Abstract

The invention discloses a low-gravity-center lead screw type intelligent lifting working platform which comprises a building body, a heavy frame and a working platform body. A supporting structure is fixedly arranged on the outer side of each layer of beam body of the building main body; the heavy frame is sleeved with the working platform, a lifting device is arranged between the working platform and the heavy frame, and the working platform and the heavy frame move relatively through the lifting device so as to achieve the purpose of lifting; and the lifting device is positioned above the gravity centers of the heavy frame and the working platform. Compared with the prior art, the device has the advantages that the device is simple in structure and convenient to use; the problems that the gravity center of a lifted frame body is higher than the stress point of the lifted frame body, and the frame body overturns and falls due to the fact that the frame body is affected by moment are solved. The situation that a traditional protection platform can only achieve one-way falling prevention is thoroughly improved; the working platform can be provided with two anti-falling devices for protection during ascending or descending bidirectional movement; through reverse operation, the effect that the working platform descends on the periphery of the building body layer by layer is achieved; and labor, material and time costs are saved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction equipment, in particular to a low-center-of-gravity lead screw type intelligent lifting work platform. Background Art

[0002] The traditional "protection platform" used in the construction of super-high buildings hangs the electric hoist on the upper hanging point of the building, and then uses a wire rope or electric chain to connect the lower hanging point at the bottom of the protection platform near the building along the side facade of the protection platform near the building. When lifting the protection platform, the electric hoist is used to forcibly pull up the lower hanging point of the protection platform so that the protection platform is raised to the construction position of the upper floor. This structure can easily cause the protection platform to overturn when it is forcibly pulled up. There are two major problems with the basic structure of this type of traditional protection platform:

[0003] The center of gravity is higher than its hanging point - the center of gravity of the protection platform is outside the geometric center of its own frame. Because the facade must have a protective net, the hanging point is at the inner side of the bottom of the entire protection platform. It is easy to be overturned when the bottom is pulled up.

[0004] Large gravity moment - when the protection platform is pulled up, the horizontal distance between the "vertical line through the lower hanging point" at the force point and the "vertical line through the center of gravity" at the center of gravity of the frame itself is more than half of the total width of the cross section of the protection platform. The horizontal distance between these two vertical lines is the arm of the gravity moment on the protection platform. (Gravity x arm = gravity moment) This gravity moment causes the protection platform to have a huge tendency to tip over. Therefore, the traditional "attached lifting safety protection platform for construction" must be equipped with strong special guide rails and anti-tilt devices to prevent it from tipping over. Due to these two major problems, some frame falling accidents have occurred in the past 30 years.

[0005] During the construction of a high-rise building, the N-1st floor had just been poured with concrete, and the N-2th floor was poured with concrete about 7 days ago. The strength of these two layers of concrete cannot meet the strength of the upper hanging point. Therefore, only the concrete position of the N-3th floor can be used as the foothold of the upper hanging point. The size of the electric hoist itself and the size of the upper and lower hooks occupy the height of one floor. In addition, it is planned to lift the frame by one floor, so the lower hanging point can only be set at the same height as the N-5th floor. Therefore, the center of gravity of the hoisted frame is much higher than its own lower hanging point.

[0006] In addition, the anti-fall device of the traditional protection platform is designed using the principle of "one-way ratchet" or "one-way wedge tightening". "One-way" causes the anti-fall device of the protection platform to be effective during the rising process of the frame, but unusable or ineffective during the descending process of the frame. Because the protection platform cannot be safely lowered, during construction, workers can only use the top of the building to directly dismantle and dismantle the traditional protection platform after the building structure is capped. Before the exterior facade of the building is decorated, workers have to use other tools such as hanging baskets as working platforms.

[0007] Therefore, it is particularly important to develop a low-center-of-gravity lead screw type intelligent lifting work platform. Summary of the invention

[0008] The purpose of the present invention is to provide a low-center-of-gravity lead screw type intelligent lifting work platform to solve the problems raised in the above-mentioned background technology.

[0009] In order to solve the above technical problems, the technical solution provided by the present invention is: a low-center-of-gravity screw-type intelligent lifting work platform, comprising a building body, a load-bearing frame and a work platform;

[0010] A supporting structure is fixedly arranged on the outside of each layer of beams of the building main body;

[0011] The load-bearing frame and the working platform are both composed of a plurality of horizontal bars and vertical bars to form a frame structure;

[0012] A bearing frame support portion is provided at the bottom of the bearing frame, and the cross-section of the bearing frame support portion is a triangle. A bearing frame support piece is provided at the bottom of the side of the bearing frame support portion close to the building main body. A bearing frame foundation piece and a bearing frame supporting wall piece are provided at the side of the bearing frame close to the building main body. The bearing frame support piece, the bearing frame foundation piece, and the bearing frame supporting wall piece are located in the same plane. The bearing frame supporting wall piece is located above the bearing frame foundation piece, and the bearing frame support piece is located below the bearing frame foundation piece. The bottom of the side of the bearing frame away from the building main body is a bearing frame diagonal support point, and the bearing frame diagonal support point, the bearing frame support piece, and the bearing frame foundation piece are located at the three vertices of the triangle.

[0013] A working platform support portion is provided at the bottom of the working platform, and the cross-section of the working platform support portion is a triangle. A working platform support piece is provided at the bottom of the side of the working platform support portion close to the building main body. A working platform foundation piece and a working platform wall support piece are provided at the side of the working platform close to the building main body. The working platform support piece, the working platform foundation piece, and the working platform wall support piece are located in the same plane. The working platform wall support piece is located above the working platform foundation piece, and the working platform support piece is located below the working platform foundation piece. The bottom of the side of the working platform away from the building main body is a working platform diagonal support point, and the working platform diagonal support point, the working platform support piece, and the working platform foundation piece are located at the three vertices of the triangle.

[0014] The working platform is sleeved on the outside of the load-bearing frame, and a lifting device is provided between the working platform and the load-bearing frame. The working platform and the load-bearing frame are moved relative to each other through the lifting device to achieve the purpose of lifting;

[0015] The lifting device is located above the center of gravity of the load-bearing frame and the working platform.

[0016] As a preferred solution, the lifting device includes an electric motor and two jack units arranged on the working platform, the jack units are located on both sides of the electric motor, worms are arranged on both sides of the electric motor through a through shaft, the jack unit includes a worm wheel, a vertical lead screw is arranged on the worm wheel, the top and bottom of the vertical lead screw are respectively connected to two cross bars of the load-bearing frame by bolts, and the worm wheel is meshed with the worm;

[0017] The length of the vertical screw is not less than the floor height of the building body;

[0018] The connection points between the top and bottom of the vertical lead screw and the load-bearing frame are all located above the center of gravity of the load-bearing frame;

[0019] The vertical line of the center of gravity of the load-bearing frame and the working platform coincides, and the vertical lead screw is located on the vertical line where the center of gravity of the load-bearing frame and the working platform are located.

[0020] As a preferred solution, the load-bearing frame support members, the load-bearing frame foundation members, the load-bearing frame wall members, the working platform support members, the working platform foundation members, and the working platform wall members are all detachably connected to the supporting structure.

[0021] As a preferred solution, the electric motor is controlled by a remote control system.

[0022] As a preferred solution, a protective net is provided on the outside of the working platform.

[0023] As a preferred solution, in the frame structure of the load-bearing frame and the working platform, the cross bars and the vertical bars are connected by welding or high-strength bolts to enhance the stability and load-bearing capacity of the structure.

[0024] Compared with the prior art, the advantages of the present invention are: simple structure and easy to use; under the condition that the strength of concrete and the environment remain unchanged, the problem of the center of gravity of the lifted frame being higher than its own stress point and the frame being overturned and falling due to the influence of the moment is solved; the use of a jack unit completely improves the situation that the traditional protection platform can only prevent falling in one direction; the working platform can be protected by two anti-fall devices when moving in both directions of rising or falling; through reverse operation, the effect of the working platform descending layer by layer on the periphery of the building body is achieved; labor, material and time costs are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of preparation for the working platform of the present invention to be reliably fixed on the main body of the building and planned to lift the load-bearing frame.

[0026] Figure 2 It is a schematic diagram of preparation for the load-bearing frame of the present invention to be reliably fixed on the main body of the building and planned to lift the working platform.

[0027] Figure 3 It is a top view of the present invention.

[0028] Figure 4 It is a structural schematic diagram of the present invention completing a round of lifting, and fixing the load-bearing frame and the working platform on the building body respectively.

[0029] Figure 5 It is a position comparison diagram of the working platform or the load-bearing frame of the present invention after it is fixed on the main body of the building and the corresponding frame before and after it is lifted.

[0030] Figure 6 It is a structural schematic diagram of the lifting device of the present invention.

[0031] Figure 7 The structure diagram of the jack unit of the present invention is shown in FIG. Figure 1 .

[0032] Figure 8 The structure diagram of the jack unit of the present invention is shown in FIG. Figure 2 .

[0033] Fig. 9 It is a schematic structural diagram of the meshing portion of the worm wheel and the worm of the present invention.

[0034] As shown in the figure: 1. Electric motor, 2. Worm, 3. Jack unit, 4. Working platform, 5. Load-bearing frame, 6. Vertical screw, 7. Worm gear, 8. Protective net, 9. Building main body, 10. Support structure, 401. Working platform support parts, 402. Working platform foundation parts, 403. Working platform wall support parts, 404. Working platform diagonal support points, 501. Load-bearing frame support parts, 502. Load-bearing frame foundation parts, 503. Load-bearing frame wall support parts, 504. Load-bearing frame diagonal support points. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution 1 and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the embodiments of the present invention, "plurality" means at least 2.

[0039] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In conjunction with the accompanying drawings, a low-center-of-gravity screw-type intelligent lifting work platform includes a building body 9, a load-bearing frame 5 and a work platform 4;

[0041] A supporting structure 10 is fixedly arranged on the outside of each layer of beams of the building main body 9;

[0042] The load-bearing frame 5 and the working platform 4 are both composed of a plurality of horizontal bars and vertical bars to form a frame structure;

[0043] A bearing frame support part is provided at the bottom of the bearing frame 5, and the cross section of the bearing frame support part is a triangle. A bearing frame support member 501 is provided at the bottom of one side of the bearing frame support part close to the building main body 9, and a bearing frame foundation member 502 and a bearing frame supporting wall member 503 are provided at one side of the bearing frame 5 close to the building main body 9. The bearing frame support member 501, the bearing frame foundation member 502, and the bearing frame supporting wall member 503 are located in the same plane, and the bearing frame supporting wall member 503 is located above the bearing frame foundation member 502, and the bearing frame support member 501 is located below the bearing frame foundation member 502. The bottom of the side of the bearing frame 5 away from the building main body 9 is a bearing frame diagonal support point 504, and the bearing frame diagonal support point 504, the bearing frame support member 501, and the bearing frame foundation member 502 are located at the three vertices of the triangle;

[0044] A working platform support part is provided at the bottom of the working platform 4, and the cross section of the working platform support part is a triangle. A working platform support member 401 is provided at the bottom of one side of the working platform support part close to the building main body 9, and a working platform foundation member 402 and a working platform wall support member 403 are provided at the side of the working platform 4 close to the building main body 9. The working platform support member 401, the working platform foundation member 402, and the working platform wall support member 403 are located in the same plane, the working platform wall support member 403 is located above the working platform foundation member 402, and the working platform support member 401 is located below the working platform foundation member 402. The bottom of the side of the working platform 4 away from the building main body 9 is a working platform diagonal support point 404, and the working platform diagonal support point 404, the working platform support member 401, and the working platform foundation member 402 are located at the three vertices of the triangle;

[0045] The working platform 4 is sleeved outside the load-bearing frame 5, and a lifting device is provided between the working platform 4 and the load-bearing frame 5. The working platform 4 and the load-bearing frame 5 are moved relative to each other through the lifting device to achieve the purpose of lifting;

[0046] The lifting device is located above the center of gravity of the load-bearing frame 5 and the working platform 4.

[0047] The lifting device includes a motor 1 and two jack units 3 arranged on a working platform 4. The jack units 3 are located on both sides of the motor 1. A worm 2 is arranged on both sides of the motor 1 through a through shaft. The jack unit 3 includes a worm wheel 7. A vertical screw 6 is arranged on the worm wheel 7. The top and bottom of the vertical screw 6 are respectively connected to two cross bars of the load-bearing frame 5 by bolts. The worm wheel 7 is meshed with the worm 2.

[0048] The length of the vertical screw 6 is not less than the floor height of the building body 9;

[0049] The connection points of the top and bottom of the vertical screw 6 and the load-bearing frame 5 are all located above the center of gravity of the load-bearing frame 5;

[0050] The vertical line of the center of gravity of the load-bearing frame 5 coincides with that of the working platform 4 , and the vertical lead screw 6 is located on the vertical line where the center of gravity of the load-bearing frame 5 and the working platform 4 are located.

[0051] The load-bearing frame support member 501 , the load-bearing frame foundation member 502 , the load-bearing frame wall support member 503 , the working platform support member 401 , the working platform foundation member 402 , and the working platform wall support member 403 are all detachably connected to the supporting structure 10 .

[0052] The electric motor 1 is controlled by a remote control system.

[0053] A protective net 8 is provided outside the working platform 4 .

[0054] In the frame structure of the load-bearing frame 5 and the working platform 4, the horizontal bars and the vertical bars are connected by welding or high-strength bolts to enhance the stability and load-bearing capacity of the structure.

[0055] When the present invention is implemented, the working platform and the load-bearing frame are alternately fixed to the building at the G point (foundation point) of the N-3 layer of concrete and the Z point (support point) of the N-4 layer. The G point, the Z point, and the X point (diagonal support point) form a vertical support triangle GZX. At the same time, the GX sides of multiple pieces of support triangles GZX are connected with metal profiles to form a stable GXGX plane frame, which provides a safe foundation for subsequent lifting work.

[0056] Before the load-bearing frame is lifted, the working platform is reliably fixed to the building and the 4-GXGX plane frame of the working platform is set up. Similarly, before the working platform is lifted, the load-bearing frame is reliably fixed to the building and the 5-GXGX plane frame of the load-bearing frame is set up.

[0057] When a frame is securely attached to a building (for example, Figure 1 When lifting another frame that is not fixed to the building (for example, Figure 1 When the load-bearing frame is fixed to the building frame ( Figure 1The inner thread of the worm gear inside the upper jack unit of the middle working platform is the mechanical anchor point "M anchor point" of the lifting frame.

[0058] In another frame ( Figure 1 During the lifting process of the load-bearing frame, the "force point of the lifted frame" is at the meshing point between the vertical screw thread and the inner thread of the worm gear. Moreover, this meshing point (the force point of the load-bearing frame) moves along the vertical screw within the length of the vertical screw.

[0059] As the roles of the "lifted frame" and the "fixed frame" are exchanged between the load-bearing frame and the working platform, the "stress point" and the "anchor point" are also exchanged. No matter how the roles are exchanged, the "stress point" and the "anchor point" will always coincide with the same position, which is above the center of gravity of the lifted frame, that is, the meshing point of the vertical screw thread and the internal thread of the worm gear.

[0060] According to the principle of mechanics, the present invention has two major characteristics: Figure 1 , Figure 2 ):

[0061] A. The center of gravity of the lifted frame is lower than the lifting force point during the lifting process. (The center of gravity of the lifted frame is near its geometric center. The lifting force point of the lifted frame is at the meshing point between the vertical screw thread and the internal thread of the worm gear.)

[0062] B. The horizontal distance between the vertical line passing through the center of gravity of the frame being lifted and the vertical line passing through the lifting force point during the lifting process is very small or close to zero (gravity x lever arm = gravity moment, lever arm → zero). This basically eliminates the influence of the gravity moment of the frame during the lifting process, and minimizes the risk of the frame tipping over during the lifting process.

[0063] choose( Figure 1 , Figure 2 ) The worm gear in the jack unit is the nut on the vertical screw. This structural design has two other features:

[0064] C. The slope principle of the lead screw and nut can effectively guide and control the object being guided to move forward and backward along the axial direction of the lead screw. Therefore, the combination of the vertical lead screw and nut (worm gear) is the first anti-fall device.

[0065] D. In the worm gear unit, the worm has the function of active forward and reverse rotation, while the worm wheel can only passively rotate relative to the worm (the worm wheel cannot actively rotate relative to the worm). This is the second anti-fall device.

[0066] According to the principles of mechanics ( Figure 2 )and( Figure 1) is that the roles of the "fixed frame" and the "lifted frame" are swapped between the working platform and the load-bearing frame, resulting in the roles of the "anchor point" and the "force-bearing point" being swapped as well. Other contents are the same.

[0067] ( Figure 4 ) is a "low-center-of-gravity screw-type intelligent lifting work platform". After completing the work of rising one floor, the construction workers can start construction on the Nth floor.

[0068] Therefore, the working platform of the "low-center-of-gravity lead screw-type intelligent lifting work platform" can be protected by two anti-fall devices when moving in both directions, either up or down. In actual application, it can be raised or lowered at will according to the requirements of the construction process. Especially after the construction reaches the capping of the concrete structure, the working platform can be lowered layer by layer on the periphery of the building through the total reverse operation. After the working platform descends, stops, and is reliably fixed to a certain position of the building, the working platform can become a construction work platform for workers to carry out decoration or maintenance operations. This greatly saves the labor, material and time costs of the decoration workers who must install tool platforms such as hanging baskets before carrying out decoration construction.

[0069] A. Installation location of each component of the working platform ( Figure 1 ), the outer casings of the motor and the jack unit are respectively and reliably fixed on the working platform; the upper and lower ends of the vertical lead screw are reliably fixed on the two cross beams on the upper part of the load-bearing frame.

[0070] B. Steps for lifting the load-bearing frame, such as Figure 1 At this time, the concrete pouring construction of the N-1 floor has just been completed, and preparations are being made to install the working platform for the N floor.

[0071] Check the connection points between the working platform and the building, which must be reliable and effective. In particular, check the 4G-foundation point, 4Z-support point, and 4F-wall support point of the working platform. 4G, 4Z and 4X-bracing points form a stable vertical support triangle 4-GZX. Use metal profiles to connect the 4-GX sides of multiple groups of 4-GZX along the vertical and horizontal directions of the plane to form a 4-GXGX plane frame. This plane frame provides a good mechanical foundation platform for the stable lifting of the load-bearing frame.

[0072] All connections between the load-bearing frame and the building are released, leaving only the male thread of the vertical lead screw and the internal thread of the worm gear in meshing connection, which is flexible and reliable.

[0073] When the switch is turned on in the forward direction, the motor is running in the forward direction, and the worm in the jack unit drives the worm wheel to rotate in the forward direction. When the worm wheel rotates in the forward direction, its inner thread lifts the non-rotating vertical lead screw, and the vertical lead screw drives the load-bearing frame to the upper floor. At the reserved positions, the load-bearing frame is reliably fixed to each reserved position of the building (points 5G, 5Z, 5F, and 5X).

[0074] C. Climbing steps of the working platform:

[0075] Check the wall connection points of the load-bearing frame, which must be reliable and effective. In particular, check that the load-bearing frame and the building's 5G-foundation point, 5Z-support point, and 5F-support point must be reliably fixed, and the 5G, 5Z and 5X-diagonal support points form a stable vertical support triangle 5-GZX. Use metal profiles to connect the 5-GX sides of multiple groups of 5-GZX along the vertical and horizontal directions of the plane to form a 5-GXGX plane frame of the load-bearing frame. This plane frame provides a good mechanical foundation platform for the load-bearing frame to smoothly lift the working platform.

[0076] All connections between the working platform and the building are released, leaving only the connection between the inner circle female thread of the worm gear and the male thread of the vertical lead screw, which is flexible and reliable.

[0077] When the switch is turned on in the reverse direction, the motor runs in the reverse direction, and the worm in the jack unit drives the worm wheel to reverse. The reversed worm wheel climbs up along the vertical lead screw through its inner thread. The vertical lead screw is fixed to the load-bearing frame, and the load-bearing frame is already fixed to the building. Therefore, the working platform rises relative to the building. After the working platform climbs to the reserved position of the upper floor of the building, the working platform is reliably fixed to each reserved position on the building (points 4G, 4Z, 4F, and 4X) at the reserved position.

[0078] D. The "low center of gravity lead screw type intelligent lifting work platform" completed the work of rising one floor:

[0079] The builders can start construction work on the Nth floor.

[0080] like Figure 5 , (5-1) and (4-1) are before being promoted, and (5-2) and (4-2) are after being promoted.

[0081] Because the jack unit is fixed on the working platform and the worm gear works in the jack unit, the position of the worm gear on the working platform remains unchanged at any time.

[0082] The vertical lead screw is fixedly connected to the upper part of the load-bearing frame which is higher than the center of gravity of the vertical lead screw and between two cross beams.

[0083] When the worm wheel rotates forward, the worm wheel lifts the vertical lead screw to drive the load-bearing frame to rise.

[0084] When the worm gear reverses, it climbs upward along the vertical lead screw, driving the working platform to rise.

[0085] Through overall reverse operation, the low-center-of-gravity screw-type lifting intelligent work platform descends.

[0086] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A low-center-of-gravity lead screw type intelligent lifting work platform, characterized in that: Including the main building, load-bearing frame and working platform; A supporting structure is fixedly arranged on the outside of each layer of beams of the building main body; The load-bearing frame and the working platform are both composed of a plurality of horizontal bars and vertical bars to form a frame structure; A bearing frame support portion is provided at the bottom of the bearing frame, and the cross-section of the bearing frame support portion is a triangle. A bearing frame support piece is provided at the bottom of the side of the bearing frame support portion close to the building main body. A bearing frame foundation piece and a bearing frame supporting wall piece are provided at the side of the bearing frame close to the building main body. The bearing frame support piece, the bearing frame foundation piece, and the bearing frame supporting wall piece are located in the same plane. The bearing frame supporting wall piece is located above the bearing frame foundation piece, and the bearing frame support piece is located below the bearing frame foundation piece. The bottom of the side of the bearing frame away from the building main body is a bearing frame diagonal support point, and the bearing frame diagonal support point, the bearing frame support piece, and the bearing frame foundation piece are located at the three vertices of the triangle. A working platform support portion is provided at the bottom of the working platform, and the cross-section of the working platform support portion is a triangle. A working platform support piece is provided at the bottom of the side of the working platform support portion close to the building main body. A working platform foundation piece and a working platform wall support piece are provided at the side of the working platform close to the building main body. The working platform support piece, the working platform foundation piece, and the working platform wall support piece are located in the same plane. The working platform wall support piece is located above the working platform foundation piece, and the working platform support piece is located below the working platform foundation piece. The bottom of the side of the working platform away from the building main body is a working platform diagonal support point, and the working platform diagonal support point, the working platform support piece, and the working platform foundation piece are located at the three vertices of the triangle. The working platform is sleeved on the outside of the load-bearing frame, and a lifting device is provided between the working platform and the load-bearing frame. The working platform and the load-bearing frame are moved relative to each other through the lifting device to achieve the purpose of lifting; The lifting device is located above the center of gravity of the load-bearing frame and the working platform.

2. A low-center-of-gravity lead screw type intelligent lifting work platform according to claim 1, characterized in that: The lifting device comprises an electric motor and two jack units arranged on the working platform, the jack units are located on both sides of the electric motor, worms are arranged on both sides of the electric motor through a through shaft, the jack unit comprises a worm wheel, a vertical screw is arranged on the worm wheel, the top and bottom of the vertical screw are respectively connected to two cross bars of the load-bearing frame by bolts, and the worm wheel is meshed with the worm; The length of the vertical screw is not less than the floor height of the building body; The connection points between the top and bottom of the vertical lead screw and the load-bearing frame are all located above the center of gravity of the load-bearing frame; The vertical line of the center of gravity of the load-bearing frame and the working platform coincides, and the vertical lead screw is located on the vertical line where the center of gravity of the load-bearing frame and the working platform are located.

3. The low-center-of-gravity lead screw type intelligent lifting work platform according to claim 1, characterized in that: The load-bearing frame support member, the load-bearing frame foundation member, the load-bearing frame wall support member, the working platform support member, the working platform foundation member, and the working platform wall support member are all detachably connected to the supporting structure.

4. The low-center-of-gravity lead screw type intelligent lifting work platform according to claim 2, characterized in that: The electric motor is controlled by a remote control system.

5. The low-center-of-gravity lead screw type intelligent lifting work platform according to claim 1, characterized in that: A protective net is arranged on the outside of the working platform.

6. The low-center-of-gravity lead screw type intelligent lifting work platform according to claim 1, characterized in that: In the frame structure of the load-bearing frame and the working platform, the horizontal bars and the vertical bars are connected by welding or high-strength bolts to enhance the stability and load-bearing capacity of the structure.

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