Elevating operation platform for building construction

Abstract

The utility model relates to the technical field of lifting platform, the utility model provides a kind of operation platform of lifting for building construction, it includes platform frame, vertical prop and inclined brace, vertical prop and inclined brace and platform frame form triangle support, baffle is set on inclined brace;Support plate rotation is set on inclined brace, the rotation axis of support plate is located above baffle, support plate has mutually perpendicular first side and second side, first side is used to be butted with shaft mouth bottom, second side can be butted with baffle, to make first side stop upward rotation, support plate is configured, first side and door hole top butting can rotate and avoid door hole top;Lifting element is lifted and is set on platform frame, lifting element is transmission connection with the end of second side away from rotation axis, to make lifting element can be lifted and drive second side rotation away from baffle. By the above technical scheme, the technical problem that the construction platform of lifting in the elevator shaft in prior art using hoisting device cannot be descended in the elevator shaft is solved.

Description

Technical Field

[0001] This utility model relates to the field of lifting platform technology, specifically to a liftable operating platform for building construction. Background Technology

[0002] In building construction, elevator shafts are often involved in construction. Since there are no footholds inside, scaffolding needs to be erected inside the elevator shaft for people to stand on. To address the issue of needing to build scaffolding on every floor, existing technologies have proposed platforms that can be moved up and down within the elevator shaft using hoisting devices.

[0003] Utility model CN218406393U discloses an adjustable construction platform comprising a platform assembly and a support assembly. The support assembly includes vertical supports and diagonal supports, with the bottom end of the diagonal supports fixedly connected to the vertical supports. The platform assembly includes a fixed platform section, with its first edge fixed to the top of the vertical supports. At least one of the remaining edges of the fixed platform section has an adjustable section telescopically connected to it. The top of the diagonal supports is fixed to the fixed platform section. A hook is fixed to the platform assembly, allowing a lifting device to raise the platform assembly via a wire rope connected to the hook. To prevent the device from falling, an L-shaped support block is added, which can support the ground at the lower doorway opening. The platform assembly, adapted to the dimensions of the shaft, provides support for the device. However, in actual use, the L-shaped support plate can only rotate to avoid the top of the doorway opening when the construction platform moves upward. When the construction platform needs to move downward, the L-shaped support plate cannot rotate upward to avoid the bottom of the doorway opening. Therefore, the construction platform can only operate from bottom to top and cannot move downwards. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a liftable operating platform for building construction, which solves the technical problem that existing construction platforms that use lifting devices to move up and down in elevator shafts cannot descend in elevator shafts.

[0005] According to one aspect, at least one embodiment of the present invention provides a liftable operating platform for building construction, including a platform frame, vertical supports, and diagonal supports, wherein the vertical supports and diagonal supports form a triangular support with the platform frame, and further includes:

[0006] A baffle is provided on the vertical support;

[0007] A support plate is rotatably mounted on the vertical support. The axis of rotation of the support plate is located above the baffle. The support plate has a first side and a second side that are perpendicular to each other. The first side is used to abut against the bottom of the door opening, and the second side can abut against the baffle so that the first side stops rotating upward. The support plate is configured such that the first side abuts against the top of the door opening and can rotate to avoid the top of the door opening.

[0008] A lifting component is mounted on the platform frame and is connected to the end of the second side away from the rotation axis, so that the lifting component can rise and drive the second side to rotate away from the baffle.

[0009] For example, in at least one embodiment of the present invention, a liftable operating platform for building construction is provided, wherein the second side has a hook for connecting a traction rope, and the lifting component drives the second side to rotate away from the baffle through the traction rope.

[0010] For example, in at least one embodiment of this utility model, a liftable operating platform for building construction further includes:

[0011] A limiting plate is installed on the platform frame, and the limiting plate is located above the lifting component. The limiting plate can limit the rising height of the lifting component.

[0012] For example, in at least one embodiment of the present invention, a liftable operating platform for building construction is provided, wherein the platform frame is a rectangular structure, the first edge of the platform frame is fixedly connected to the top of the vertical support, and the remaining three edges are all telescopically connected with adjustment parts. A right-angle member is provided between two adjacent mutually perpendicular adjustment parts, and the right-angle member includes a first part telescopically connected to one of the adjustment parts and a second part telescopically connected to the other adjustment part.

[0013] For example, in at least one embodiment of this utility model, a liftable operating platform for building construction further includes:

[0014] A support plate is detachably mounted on the top of the platform frame. The support plate is used to provide a standing platform. The lifting component is lifted and lowered on the support plate. The limiting plate is mounted on the support plate. The support plate has a through hole for the traction rope to pass through. Several hooks are provided on the top of the support plate.

[0015] For example, in at least one embodiment of this utility model, a liftable operating platform for building construction is provided, wherein the supporting plate has sequentially adjacent sides one, two, three, and four, the first side being coplanar with the first edge of the platform frame, and further comprising:

[0016] The first extension plate has a plurality of first extension plates, which are rotatably connected to the second side and the fourth side respectively. The first extension plates can be rotated to be coplanar with the supporting plate to extend the standing platform.

[0017] For example, in at least one embodiment of this utility model, a liftable operating platform for building construction is provided, wherein the length of the first extension plate is less than the length of the second side and the fourth side, and further includes:

[0018] The second extension plate is rotatably disposed on the third side. The second extension plate can be rotated to be coplanar with the supporting plate to extend the standing platform.

[0019] For example, in at least one embodiment of this utility model, a liftable operating platform for building construction is provided, wherein the length of the second extension plate is less than that of the third side, and further includes:

[0020] The compensation plate is rotatably disposed at both ends of the rotation axis of the second extension plate. The rotation axis of the compensation plate is parallel to the rotation axis of the first extension plate, and the rotation axis of the compensation plate is closer to the center line of the support plate than the rotation axis of the first extension plate.

[0021] For example, in a construction lifting platform provided in at least one embodiment of the present invention, the first extension plate and the supporting plate, the second extension plate and the supporting plate, and the compensation plate and the second extension plate are all connected by self-locking hinges.

[0022] For example, in a construction lifting platform provided in at least one embodiment of the present invention, the first extension plate and the supporting plate, the second extension plate and the supporting plate, and the compensation plate and the second extension plate are all connected by damping hinges.

[0023] The beneficial effects of the embodiments of this utility model are as follows:

[0024] In this utility model, the transmission connection between the lifting component and the rotating plate allows the operator to stand on the platform frame to control the position of the support plate. In actual use, this facilitates the operator to carry out construction or maintenance from top to bottom according to the actual site conditions, enhancing the versatility and convenience of the lifting device. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0028] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0029] Figure 4 This is a schematic diagram of the structure of the present invention after the lifting component is hidden from another angle;

[0030] Figure 5 for Figure 4 Enlarged structural diagram at point C;

[0031] Figure 6 This is a schematic diagram of the rear structure of the concealed support plate of this utility model;

[0032] In the diagram: 110, platform frame; 120, vertical brace; 130, diagonal brace; 200, baffle; 300, support plate; 310, first side; 320, second side; 400, lifting component; 500, hook; 600, limiting plate; 111, adjusting part; 112, right-angle component; 113, first part; 114, second part; 700, support plate; 710, through hole; 720, hook; 730, side one; 740, side two; 750, side three; 760, side four; 810, first extension plate; 820, second extension plate; 830, compensation plate. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0034] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0035] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] like Figures 1-6 As shown, this invention illustrates a liftable operating platform for construction in one embodiment, comprising a platform frame 110, vertical supports 120, and diagonal supports 130. The vertical supports 120 and diagonal supports 130, together with the platform frame 110, form a triangular support. The platform also includes a baffle 200, a support plate 300, and a lifting component 400. The platform frame 110, as the main body of the operating platform, is welded from high-strength steel to form a rectangular or square frame structure. The side length of the frame is determined according to the size of the elevator shaft and actual construction requirements. The vertical supports 120 and diagonal supports 130 are also made of high-strength steel. The vertical supports 120 are vertically positioned at the edge of the platform frame 110, and the diagonal supports 130 are inclined at a certain angle between the vertical supports 120 and the platform frame 110, together forming a stable triangular support structure. The vertical brace 120 and the diagonal brace 130 are connected to the platform frame 110 by welding or high-strength bolts. After entering the elevator shaft, the surface of the vertical brace 120 away from the diagonal brace 130 can fit against an inner wall of the elevator shaft, which can improve the stability of the operating platform.

[0040] The baffle 200, which is rectangular in shape, is mounted on the vertical support 120. It is fixed to the vertical support 120 by welding or bolts to ensure a secure installation and prevent loosening during use. The baffle 200 can cooperate with the support plate 300 to limit its rotation angle. When the second side 320 of the support plate 300 abuts against the baffle 200, the first side 310 stops rotating upwards, thus ensuring that the support plate 300 can remain in one position and interact with the bottom of the doorway to provide support and limit the movement of the platform frame 110, vertical support 120, and diagonal support 130.

[0041] The support plate 300 is rotatably mounted on the vertical support 120 via a pivot. The support plate 300 has a first side 310 and a second side 320 that are perpendicular to each other, forming an L-shape. The first side 310 extends towards the side of the support away from the diagonal support 130, allowing it to overlap the bottom of the doorway to provide support for the platform. After the first side 310 overlaps the bottom of the doorway, the second side 320 abuts against the baffle 200, preventing the first side 310 from rotating, thus providing stable support. When the platform rises, the top of the first side 310 abuts against the top of the doorway. Under the interaction force between the first side 310 and the top of the doorway, the first side 310 rotates downwards, allowing the support plate 300 to pass through the top of the doorway to reach the next level doorway.

[0042] The lifting component 400 is mounted on the platform frame 110 using an electric hoist or hydraulic jack, or alternatively, it can be manually lifted. The lifting component 400 is limited on the platform frame 110 by a guide rod, ensuring stable lifting. The lifting component 400 is connected to the end of the second side 320 away from the rotation axis via a steel wire rope. When the lifting component 400 rises, the second side 320 pulls the support plate 300 to rotate, causing the first side 310 to rotate closer to the diagonal brace 130. At this time, when the platform frame 110 descends, the first side 310 will not overlap the bottom of the doorway. After the lifting component 400 descends under gravity or the driving force, the second side 320 will rotate under gravity to approach the baffle 200, causing the first side 310 to rotate back to a position where it can overlap the bottom of the doorway.

[0043] The working principle is as follows: the platform frame 110, vertical support 120 and diagonal support 130 are placed in the elevator shaft, and the platform frame 110, vertical support 120 and diagonal support 130 are lifted up by hoisting equipment and wire rope. The hoisting equipment can be a winch mechanism.

[0044] When the platform needs to be raised, the hoisting equipment retracts and lifts the platform frame 110, vertical support 120 and diagonal support 130. After the first side 310 rises to the top of the doorway, it can rotate under the interaction force to avoid the top of the doorway, thus passing over the top of the doorway.

[0045] When it is necessary to stop the operation of the platform, the first side 310 must completely pass the top of the doorway and exceed the bottom of the upper doorway. The second side 320 rotates and approaches the baffle 200 under the action of gravity, while the first side 310 rotates and approaches the bottom of the doorway. The lifting equipment then unwinds the first side 310 so that it is completely resting on the bottom of the doorway. The end of the platform frame 110 away from the vertical support 120 abuts against the other side wall of the elevator shaft. Under the action of the support plate 300, the platform frame 110, and the vertical support 120, the entire lifting platform is in a stable state. Even if the steel wire rope pulling the platform frame 110 breaks, the platform will not fall.

[0046] When the operating platform needs to be lowered, it is necessary to first use the lifting equipment to lift the operating platform a certain distance, and then use the lifting and hoisting component 400 to pull the support plate 300 to rotate, so that the first side 310 is away from the position where it can overlap the bottom of the door opening. Then, use the lifting equipment to unwind the operating platform and lower it. When it is lowered to the designated door opening, the lifting component 400 is lowered, and the support plate 300 rotates again under the action of gravity to the position where the first plate can overlap with the bottom of the door opening.

[0047] Through the transmission connection between the lifting component 400 and the rotating plate, the operator can stand on the platform frame 110 to control the position of the support plate 300. In actual use, this makes it convenient for the operator to carry out construction or maintenance from top to bottom according to the actual site conditions, thus improving the versatility and convenience of the device.

[0048] In some examples, the second side 320 has a hook 500 for connecting a traction rope. The lifting component 400 rotates the second side 320 away from the baffle 200 via the traction rope. The hook 500 is fixed to the second side 320 by welding or bolting, facilitating the connection of the traction rope. The traction rope is made of galvanized steel wire rope, which has small deformation, high load-bearing capacity, and long service life.

[0049] In some examples, a limiting plate 600 is also included, which is mounted on the platform frame 110 and located directly above the lifting component 400. A support rod is mounted on the platform frame 110, and the limiting plate 600 is fixedly connected to the support rod on the platform frame 110 by welding or bolts, creating a certain distance between the limiting plate 600 and the surface of the platform frame 110. The lifting component 400 is located below the limiting plate 600, which prevents the lifting component 400 from sliding upwards, thus avoiding excessive height of the lifting component 400 which could cause the support plate 300 to rotate excessively and fail to return to its original position under the gravity of the second side 320, allowing the first side 310 to overlap the bottom of the doorway.

[0050] In some examples, the platform frame 110 has a rectangular structure, and the adjusting part 111 adopts a telescopic sleeve structure, consisting of an inner tube and an outer tube. The inner tube can freely extend and retract within the outer tube, and is fixed in different positions by bolts or pins to adjust the length. A wear-resistant bushing is provided between the inner and outer tubes to reduce friction during relative movement. The bushing is made of wear-resistant materials such as polytetrafluoroethylene. The first edge of the platform frame 110 is fixedly connected to the top of the vertical support 120, and the other three edges are telescopically connected to the adjusting parts 111. A right-angle member 112 is provided between two adjacent mutually perpendicular adjusting parts 111. The right-angle member 112 includes a first part 113 that telescopically connects to one of the adjusting parts 111 and a second part 114 that telescopically connects to the other adjusting part 111.

[0051] The length adjustment range of the adjusting part 111 is determined according to actual needs. For example, the side length of the elevator shaft is usually between 1750mm and 2150mm, and the adjustable dimension of the adjusting part 111 can be set to 400mm. The first edge of the platform frame 110 is firmly connected to the top of the vertical support 120 by welding or high-strength bolts. The other three edges are slidably connected to the adjusting part 111. A sliding groove is provided on the edge of the platform frame 110, and the outer tube of the adjusting part 111 can slide in the groove. The width of the groove is slightly larger than the diameter of the outer tube of the adjusting part 111, and the gap is controlled at 2-3 mm to ensure smooth sliding of the adjusting part 111 while preventing it from shaking. Multiple fixing holes are provided on the outer tube of the adjusting part 111, which mate with the corresponding holes on the groove. The position of the adjusting part 111 is fixed by inserting bolts and tightening them.

[0052] The right-angle member 112 connects two adjacent and mutually perpendicular adjusting parts 111. It consists of a first part 113 and a second part 114, and is generally right-angled. The first part 113 is telescopically connected to the inner or outer tube of one of the adjusting parts 111 via a sliding fit. A slide rail adapted to the adjusting part 111 is provided on the first part 113, allowing the adjusting part 111 to slide within the slide rail and be fixed in different positions by bolts or pins. Similarly, the second part 114 is also telescopically connected to the other adjusting part 111 using the same telescopic connection method.

[0053] In some examples, a support plate 700 is also included, which is detachably mounted on top of the platform frame 110. The support plate 700 is used to provide a standing platform for construction workers to stand and place tools. It is made of steel plate and its shape is adapted to the top of the platform frame 110. It is usually rectangular and its length and width are slightly smaller than the top of the platform frame 110 to facilitate installation and disassembly.

[0054] The support plate 700 is provided with through holes 710 corresponding to the number and position of the traction ropes, which can ensure that the traction ropes can pass through smoothly and reduce the friction between the traction ropes and the edges of the through holes 710. Several hooks 720 are evenly distributed on the top of the support plate 700 to facilitate the connection with the traction ropes of the lifting equipment.

[0055] The aforementioned lifting component 400 is mounted on the supporting plate 700, and the limiting plate 600 is also mounted on the supporting plate 700. Compared to being connected to the platform frame 110, the supporting plate 700, being a flat surface, is easier to arrange.

[0056] In some examples, the support plate 700 has sequentially adjacent sides 1 730, 2 740, 3 750 and 4 760. The first side 310 is coplanar with the first edge of the platform frame 110. It also includes a plurality of first extension plates 810. The plurality of first extension plates 810 are rotatably connected to the second side 320 and the fourth side 760 respectively. The first extension plates 810 can be rotated to be coplanar with the support plate 700 to extend the standing platform.

[0057] The first extension plate 810 is rectangular in shape. Its length is determined according to the size of the support plate 700 and the actual usage requirements. Generally, the length is between 0.5 and 1.2 meters, and the width is equivalent to the width of the support plate 700 to ensure that a flat standing platform is formed after splicing with the support plate 700.

[0058] The first extension plate 810 allows the area of ​​the standing platform to be flexibly expanded according to actual construction needs, providing a more spacious working space for construction workers and adapting to the adjustable platform frame 110.

[0059] In some examples, the length of the first extension plate 810 is less than the lengths of the second side 320 and the fourth side 760, providing space for the addition of the second extension plate 820, which can be folded into a shape perpendicular to the support plate 700. The second extension plate 820 is rotatably positioned on the third side 750, and can rotate to be coplanar with the support plate 700. The second extension plate 820 and the first extension plate 810 work together to expand the size of the standing platform in three directions based on the first side 730 of the support plate 700, thereby adapting to the adjustable platform frame 110.

[0060] Both the first extension plate 810 and the second extension plate 820 can be rotated to be perpendicular to the support plate 700 and parallel to the support plate 700. When parallel to the support plate 700, they can extend the standing platform; when perpendicular to the support plate 700, they can form side protection.

[0061] In some examples, the length of the second extension plate 820 is less than that of the third side 750, providing rotational space for the rotatable compensation plate 830. This allows the compensation plate 830 to rotate to a state perpendicular to and parallel to the support plate 700. The compensation plate 830 is rotatably positioned at both ends of the rotation axis of the second extension plate 820. The rotation axis of the compensation plate 830 is parallel to the rotation axis of the first extension plate 810. The compensation plate 830 can fill the gap formed between the first extension plate 810 and the second extension plate 820, thereby further increasing the area of ​​the standing platform. The rotation axis of the compensation plate 830 is closer to the centerline of the support plate 700 than the rotation axis of the first extension plate 810. This ensures that the compensation plate 830 does not interfere with the first extension plate 810 when it is rotated to a vertical position during the retraction of the compensation plate 830, the first extension plate 810, and the second extension plate 820.

[0062] It needs to be further clarified that the center line of the aforementioned support plate 700 is aligned with the center lines of side plate 740 and side plate 750.

[0063] In some examples, self-locking hinges are used as connecting components to connect the first extension plate 810 with the support plate 700, the second extension plate 820 with the support plate 700, and the compensation plate 830 with the second extension plate 820. Taking the first extension plate 810 as an example, the first extension plate 810 can stop at positions parallel to and perpendicular to the support plate 700, and maintain stability by relying on the self-locking characteristics of the self-locking hinge.

[0064] For selecting self-locking hinges, you can refer to the hinges of folding tables. Since self-locking hinges are existing technology, the specific structure will not be described in detail here.

[0065] In some examples, damping hinges are used as connecting components for the first extension plate 810 and the support plate 700, the second extension plate 820 and the support plate 700, and the compensation plate 830 and the second extension plate 820. Taking the first extension plate 810 as an example, the first extension plate 810 can stop at positions parallel to and perpendicular to the support plate 700, maintaining stability through the damping of the damping hinge. The damping hinge can also be a concealed damping hinge.

[0066] For selecting damped hinges, you can refer to the hinges of folding tables. Since damped hinges are existing technology, their specific structure will not be described in detail here.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A liftable operating platform for building construction, comprising a platform frame (110), vertical supports (120), and diagonal supports (130), wherein the vertical supports (120) and diagonal supports (130) form a triangular support with the platform frame (110), characterized in that, Also includes: A baffle (200) is provided on the vertical support (120); A support plate (300) is rotatably mounted on the vertical support (120). The axis of rotation of the support plate (300) is located above the baffle (200). The support plate (300) has a first side (310) and a second side (320) that are perpendicular to each other. The first side (310) is used to abut against the bottom of the door opening, and the second side (320) can abut against the baffle (200) to stop the first side (310) from rotating. The support plate (300) is configured such that the first side (310) can rotate to avoid the top of the door opening when it abuts against the top of the door opening. The lifting component (400) is mounted on the platform frame (110). The lifting component (400) is connected to the end of the second side (320) away from the rotation axis so that the lifting component (400) can rise and drive the second side (320) to rotate away from the baffle (200).

2. The liftable operating platform for building construction according to claim 1, characterized in that, The second side (320) has a hook (500) for connecting a traction rope, and the lifting member (400) drives the second side (320) to rotate away from the baffle (200) via the traction rope.

3. The liftable operating platform for building construction according to claim 1, characterized in that, Also includes: A limiting plate (600) is provided on the platform frame (110). The limiting plate (600) is located above the lifting member (400). The limiting plate (600) can limit the rising height of the lifting member (400).

4. The liftable operating platform for building construction according to claim 3, characterized in that, The platform frame (110) is a rectangular structure. The first edge of the platform frame (110) is fixedly connected to the top of the vertical support (120). Adjustment parts (111) are telescopically connected to the other three edges. A right-angle piece (112) is provided between two adjacent mutually perpendicular adjustment parts (111). The right-angle piece (112) includes a first part (113) telescopically connected to one of the adjustment parts (111) and a second part (114) telescopically connected to the other adjustment part (111).

5. A liftable operating platform for building construction according to claim 4, characterized in that, Also includes: A support plate (700) is detachably mounted on the top of the platform frame (110). The support plate (700) is used to provide a standing platform. The lifting component (400) is lifted and mounted on the support plate (700). The limiting plate (600) is mounted on the support plate (700). The support plate (700) has a through hole (710) for the traction rope to pass through. Several hooks (720) are provided on the top of the support plate (700).

6. The liftable operating platform for building construction according to claim 5, characterized in that, The supporting plate (700) has sequentially adjacent sides 1 (730), 2 (740), 3 (750), and 4 (760), wherein the first side (310) is coplanar with the first edge of the platform frame (110), and further includes: The first extension plate (810) has a plurality of first extension plates (810), which are rotatably connected to the second side (320) and the fourth side (760) respectively. The first extension plate (810) can be rotated to be coplanar with the support plate (700) to extend the standing platform.

7. A liftable operating platform for building construction according to claim 6, characterized in that, The length of the first extension plate (810) is less than the lengths of the second side (320) and the fourth side (760), and also includes: The second extension plate (820) is rotatably disposed on the side three (750). The second extension plate (820) is rotatable to be coplanar with the support plate (700) to extend the standing platform.

8. A liftable operating platform for building construction according to claim 7, characterized in that, The second extension plate (820) is shorter than the side plate (750) and also includes: The compensation plate (830) is rotatably disposed at both ends of the rotation axis of the second extension plate (820). The rotation axis of the compensation plate (830) is parallel to the rotation axis of the first extension plate (810), and the rotation axis of the compensation plate (830) is closer to the center line of the support plate (700) than the rotation axis of the first extension plate (810).

9. A liftable operating platform for building construction according to claim 8, characterized in that, The first extension plate (810) and the support plate (700), the second extension plate (820) and the support plate (700), and the compensation plate (830) and the second extension plate (820) are all connected by self-locking hinges.

10. A liftable operating platform for building construction according to claim 8, characterized in that, The first extension plate (810) and the support plate (700), the second extension plate (820) and the support plate (700), and the compensation plate (830) and the second extension plate (820) are all connected by damping hinges.

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