Liftable operation protection platform

Abstract

The utility model discloses a lifting operation protection platform which comprises a lifting frame, a walkway plate, a vertical frame and a steel mesh window. The lifting frame comprises sliding grooves, brackets, guide wheels, a winch, a lifting steel wire rope and a gear motor, the sliding grooves are formed in the opposite sides of the vertical rods, connecting plates are fixedly arranged on the opposite sides of the two brackets respectively and located on the outer sides of the sliding grooves, and the guide wheels are installed between the two connecting plates and located in the sliding grooves; lug plates are installed on the sides, deviating from each other, of the two brackets, a winch is rotationally installed between the lug plates and below the brackets, two lifting steel wire ropes are wound around the winch, one lifting steel wire rope is wound around the winch in the forward direction, the other lifting steel wire rope is wound around the winch in the reverse direction, and the ends, extending out of the winch, of the lifting steel wire ropes are wound around the guide wheels and connected with the upper ends of the sliding grooves; the gear motor is installed on the bracket and is in transmission connection with the winch. The device is installed at the upper end of a scaffold, and the problem that the protection height of a scaffold body is insufficient possibly due to frequent body structure layer height change is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffolds, in particular to a protective platform capable of lifting and lowering operations. Background Art

[0002] The all-steel attached lifting scaffold is a high-rise building construction scaffold consisting of a vertical main frame, a horizontal support frame, a frame structure, an attachment device lifting mechanism and a synchronous lifting control system. The vertical main frame of the scaffold is a plane frame structure, which is composed of guide rails, external poles, main frame rigid brackets and bottom cross bars; the horizontal support truss is composed of web bars, frame poles, scaffolding boards, rigid brackets and bottom cross bars, which are set at the bottom of the frame; the frame structure is composed of frame poles, scaffolding boards, rigid brackets and protective nets. The protective net is connected to the external poles of the frame through connectors. Each component is connected by bolts.

[0003] The lifting mechanism of the scaffolding consists of an electric hoist, a lifting support, upper and lower lifting blocks and auxiliary vertical poles. The electric hoist is hung on the upper lifting block between the vertical main frame and the auxiliary vertical pole, and the wire rope is connected to the wall-attached lifting support through the guide pulley of the lower lifting block. The wall-attached lifting support and the wall-attached support are fixed to the building structure with double screws.

[0004] The swing block anti-fall device of the scaffold consists of an anti-fall swing block, a trigger block, a reset spring and a 30mm anti-fall pin. When the frame rises, the trigger block swings under the drive of the guide rail anti-fall tooth plate and resets under the action of the spring; when the frame descends, the trigger block drives the anti-fall swing block to swing, and the anti-fall swing block resets under the action of its own weight and the reset spring; when the frame falls, the reset speed of the anti-fall swing block is lower than the falling speed of the frame, and it supports the anti-fall tooth plate to achieve the anti-fall function.

[0005] The height of this type of frame is designed according to the building height, which can meet the protection requirements of 4-5 floors. However, with the diversification of high-rise building functions, the height of the main structure changes frequently. When the local height is higher than the design standard height, the frame protection height may be insufficient. When the height increases or decreases, the frame needs to be erected or dismantled at high altitude, which has high safety risks, high work intensity, and a relatively long construction period. Utility Model Content

[0006] The utility model provides a protective platform that can be raised and lowered for installation on the upper end of a scaffold, and solves the problem of insufficient protective height of a frame due to frequent changes in the main structure layer height.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] The utility model relates to a liftable operation protection platform, which comprises a lifting frame, a walkway board laid on the lifting frame, a vertical frame installed on the lifting frame, and a steel mesh window installed between two adjacent spans of the vertical frame and located outside the vertical frame;

[0009] The lifting frame comprises a chute, brackets, guide wheels, a winch, lifting steel wire ropes and a reduction motor. The chute is used for being installed on the opposite side of a scaffold vertical rod. The brackets are arranged in pairs and used for being installed on both sides of the vertical rod and temporarily connected with the vertical rod;

[0010] Connecting plates are respectively fixedly arranged on the opposite sides of the two brackets. The connecting plates are located outside the chute. The guide wheels are installed between the two connecting plates and the guide wheels are located in the chute;

[0011] Lugs are installed on the opposite sides of the two brackets. A winch is rotatably installed below the brackets between the two lugs. Two lifting steel wire ropes are wound on the winch. One of the lifting steel wire ropes is wound on the winch in the positive direction, and the other lifting steel wire rope is wound on the winch in the reverse direction. The end of the lifting steel wire rope extending out of the winch bypasses the guide wheel and is connected with the upper end of the chute;

[0012] The reduction motor is installed on the bracket and is in transmission connection with the winch.

[0013] For the liftable operation protection platform of the utility model, further, an installation frame is installed on the outside of one of the brackets, and the reduction motor is fixedly installed on the installation frame.

[0014] For the liftable operation protection platform of the utility model, further, connecting pieces are respectively fixedly arranged on the inner and outer sides of the top surface of the bracket for the walkway board. A vertical frame is arranged between the two inner and outer opposite connecting pieces, and the vertical frame is fixedly connected with the connecting pieces.

[0015] For the liftable operation protection platform of the utility model, further, the vertical frame is of a portal frame structure.

[0016] For the liftable operation protection platform of the utility model, further, a sealing strip is arranged between the vertical frames on both sides of the bracket, and the sealing strip is connected with the vertical frame through bolts.

[0017] For the liftable operation protection platform of the utility model, further, it further comprises a guide rail for being installed on the outside of the vertical rod. Guide grooves are respectively arranged along the vertical direction on the opposite sides of the guide rail. Anti-tilting guide claws are installed on the vertical frame. Guide wheels are arranged on the anti-tilting guide claws, and the guide wheels are arranged to roll in the guide grooves.

[0018] For the liftable operation protection platform of the utility model, further, connecting cross bars are respectively connected between the adjacent two-span vertical members on the inner side of the vertical frame.

[0019] The present utility model relates to a liftable operation protection platform. Further, a diagonal brace is provided at the cantilevered part of the walkway board. One end of the diagonal brace is connected to the walkway board, and the other end is connected to a connecting plate. A cross brace is connected to the lower ends between the diagonal braces on both sides of the walkway board.

[0020] The present utility model relates to a liftable operation protection platform. Further, it further includes an upper limit stop block, a lower limit stop block, and a stopper. The stopper is fixedly provided on the bracket. The stopper is located between the upper limit stop block and the lower limit stop block and can come into contact and cooperate with the upper limit stop block or the lower limit stop block when sliding to the corresponding position. The upper limit stop block and the lower limit stop block are used to be installed on the vertical pole.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] In this application, by designing a liftable operation protection platform at the top of the attached lifting scaffold, it is applicable to the situation where the climbing frame is used for protection in building structures with variable storey heights such as super high-rise buildings, apartments, and buildings with refuge floors. Through the liftable operation protection platform, its height can be freely adjusted, reducing the work of erecting and demolishing the climbing frame body during the climbing frame construction with relatively frequent storey height changes, avoiding the safety risks of high-altitude erection or demolition, reducing the labor intensity of workers, and saving the construction period.

[0023] The following further describes the present utility model with reference to the accompanying drawings. Description of the Drawings

[0024] Figure 1 It is the front view of the present utility model;

[0025] Figure 2 It is the side view of the present utility model;

[0026] Figure 3 It is the schematic diagram of the cooperation structure of the attached lifting scaffold and the operation protection platform of the present utility model;

[0027] Figure 4 It is the schematic diagram of the installation structure of the lifting frame of the present utility model;

[0028] Figure 5 It is the schematic diagram of the installation structure of the sealing strip of the present utility model;

[0029] Figure 6 It is the schematic diagram of the installation structure of the limit stop block of the present utility model.

[0030] Reference Signs:

[0031] 1. Attached lifting scaffolding; 1.1. Vertical pole; 1.2. Slide; 1.3. Guide rail; 1.4. Guide groove; 1.5. Screw; 2. Operation protection platform; 2.1. Bracket; 2.2. Latch; 2.3. Connecting plate; 2.4. Guide wheel; 2.5. Ear plate; 2.6. Winch; 2.7. Lifting wire rope; 3. Walkway board; 4. Mounting frame; 5. Reducer motor; 6. Connecting piece; 7. Vertical frame; 8. Steel mesh window; 9. Sealing strip; 10. Anti-tilt guide claw; 10.1. Install vertical plate; 10.2. Install vertical plate; 10.3. Guide wheel; 11. Connecting cross bar; 12. Diagonal brace; 13. Horizontal brace; 14. Upper limit block; 15. Lower limit block; 16. Limiter. DETAILED DESCRIPTION

[0032] like Figures 1-6 As shown, the utility model discloses a liftable protective platform for installation on the top of an attached lifting scaffold. The attached lifting scaffold 1 comprises uprights 1.1 respectively located on the inner and outer sides of the attached lifting scaffold 1. The upper parts of the two rows of uprights 1.1 are respectively fixed with slide grooves 1.2 on the opposite sides. A guide rail 1.3 is installed on the side of the inner row of uprights 1.1 away from the installation slide groove 1.2. The two sides of the guide rail 1.3 are respectively provided with vertically arranged guide grooves 1.4. The uprights 1.1 with the guide rail 1.3 installed are welded and fixed to the slide groove 1.2. The uprights 1.1 without the guide rail 1.3 are connected and fixed to the slide groove 1.2 by screws 1.5. In the embodiment of the present application, the slide groove 1.2 is a U-shaped groove made of bent steel plate, and a screw 1.5 is welded on the U-shaped groove. The screw 1.5 passes through the uprights 1.1 and is locked by nuts.

[0033] The operating protection platform 2 includes a lifting frame, which includes brackets 2.1 respectively arranged on both sides of the vertical pole 1.1, the brackets 2.1 are connected and fixed to the vertical pole 1.1 through pins 2.2, and connecting plates 2.3 are fixed on opposite sides of the two brackets 2.1, and the connecting plates 2.3 are located on the outside of the slide groove 1.2. A guide wheel 2.4 is installed between the two connecting plates 2.3, and the guide wheel 2.4 is located in the slide groove 1.2.

[0034] Ear plates 2.5 are respectively installed on the opposite sides of the two brackets 2.1, and a winch 2.6 is rotatably installed between the two ear plates 2.5 below the bracket 2.1. Two lifting wire ropes 2.7 are wound around the winch 2.6, one of the lifting wire ropes 2.7 is forwardly wound around the winch 2.6, and the other lifting wire rope 2.7 is reversely wound around the winch 2.6. By rotating the winch 2.6, the retraction and extension of the two lifting wire ropes 2.7 can be controlled at the same time, and the end of the lifting wire rope 2.7 passes around the guide wheel 2.4 and is connected and fixed to the upper end of the slide groove 1.2.

[0035] The top surface of the bracket 2.1 is paved with a walkway board 3. An installation frame 4 is installed outside one of the brackets 2.1. A reduction motor 5 is fixed on the installation frame 4. The reduction motor 5 is drivingly connected to a winch 2.6. The reduction motor 5 drives the winch 2.6 to rotate, and the winch 2.6 controls the lifting steel wire rope 2.7 to drive the lifting frame to lift and lower.

[0036] Connectors 6 are respectively fixed on the inner and outer sides of the walkway board 3 on the top surface of the bracket 2.1. A vertical frame 7 is arranged between two relatively inner and outer connectors 6. The vertical frame 7 and the connectors 6 are connected by bolts. The connectors 6 are made of angle steel. The vertical frame 7 is of a portal frame structure. A steel mesh window 8 is installed between two adjacent spans of the vertical frame 7. The steel mesh window 8 is connected to the vertical frame 7 by bolts; A sealing strip 9 is arranged between the vertical frames 7 on both sides of the bracket 2.1. The sealing strip 9 and the steel mesh window 8 are fixed on the vertical frame 7 by bolts together.

[0037] An anti-tilting guide claw 10 is installed on the vertical frame 7. The anti-tilting guide claw 10 includes an installation vertical plate 10.1. The installation vertical plate 10.1 is installed on the vertical frame 7 by bolts. An installation vertical plate 10.2 is fixed on the installation vertical plate 10.1. A guide wheel 10.3 is installed on the installation vertical plate 10.2 facing the side of the guide rail 1.3. The guide wheel 10.3 is rollingly arranged in the vertical guide groove 1.4 on the side surface of the guide rail 1.3.

[0038] Connecting cross bars 11 are respectively connected between two adjacent spans of vertical members on the inner side of the vertical frame 7 to strengthen the rigidity of the inner row of the vertical frame 7 and can also be used as a protection measure for the lifting frame.

[0039] A diagonal brace 12 is arranged at the overhanging part of the walkway board 3. One end of the diagonal brace 12 is connected to the walkway board 3, and the other end is connected to the connecting plate 2.3. A cross brace 13 is connected between the diagonal braces 12 on both sides of the walkway board 3 at the lower end to enhance the strength of the overhanging end.

[0040] An upper limit stop block 14 for controlling the upper limit of the lifting height of the lifting frame and a lower limit stop block 15 for controlling the lower limit of the lowering of the lifting frame are installed on the inner row of vertical poles 1.1. A limiter 16 is fixed on the bracket 2.1. The limiter 16 is located between the upper limit stop block 14 and the lower limit stop block 15.

[0041] In this application, by designing a liftable operation and protection platform 2 at the top of the attached lifting scaffold 1, it is applicable to the situation where a climbing frame is used for protection in building structures with variable storey heights such as super high-rise buildings, apartments, and buildings with refuge floors. Through the liftable operation and protection platform 2, its height can be freely adjusted, reducing the work of erecting and demolishing the climbing frame body in the climbing frame construction with relatively frequent storey height changes, avoiding the safety risks of high-altitude erection or demolition, reducing the labor intensity of workers, and saving the construction period.

[0042] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A liftable operation protection platform, characterized in that: It includes a lifting frame, a walkway board (3) laid on the lifting frame, a vertical frame (7) installed on the lifting frame, and a steel mesh window (8) installed between adjacent two-span vertical frames (7) and located outside the vertical frame (7); The lifting frame includes a chute (1.2), brackets (2.1), guide wheels (2.4), a winch (2.6), lifting steel wires (2.7), and a reduction motor (5). The chute (1.2) is used to be installed on the opposite side of the scaffolding vertical pole (1.1). The brackets (2.1) are arranged in pairs and are used to be installed on both sides of the vertical pole (1.1) and temporarily connected to the vertical pole (1.1); On the opposite sides of the two brackets (2.1), connecting plates (2.3) are respectively fixed. The connecting plates (2.3) are located outside the chute (1.2). The guide wheels (2.4) are installed between the two connecting plates (2.3) and the guide wheels (2.4) are located in the chute (1.2); On the opposite sides of the two brackets (2.1), ear plates (2.5) are installed. A winch (2.6) is rotatably installed below the brackets (2.1) between the two ear plates (2.5). Two lifting steel wires (2.7) are wound on the winch (2.6). One of the lifting steel wires (2.7) is wound on the winch (2.6) in the positive direction, and the other lifting steel wire (2.7) is wound on the winch (2.6) in the reverse direction. The end of the lifting steel wire (2.7) extending out of the winch (2.6) bypasses the guide wheel (2.4) and is connected to the upper end of the chute (1.2); The reduction motor (5) is installed on the bracket (2.1) and is in transmission connection with the winch (2.6).

2. The liftable operation protection platform according to claim 1, wherein: On the outside of one of the brackets (2.1), a mounting frame (4) is installed. The reduction motor (5) is fixedly installed on the mounting frame (4).

3. The liftable operation protection platform according to claim 1, wherein: On the top surface of the bracket (2.1), connecting members (6) are respectively fixed on the inner and outer sides of the walkway board (3). A vertical frame (7) is arranged between the two inner and outer opposite connecting members (6). The vertical frame (7) is fixedly connected to the connecting member (6).

4. A liftable operation protection platform according to claim 1, characterized in that: The vertical frame (7) is a portal frame structure.

5. A liftable operation protection platform according to claim 1, characterized in that: A sealing strip (9) is arranged between the vertical frames (7) on both sides of the bracket (2.1). The sealing strip (9) is connected to the vertical frame (7) by bolts.

6. The liftable operation protection platform according to claim 1, characterized in that: It also includes a guide rail (1.3) used to be installed on the outside of the vertical pole (1.1). Guide grooves (1.4) are respectively arranged along the vertical direction on the opposite sides of the guide rail (1.3). Anti-tilting guide claws (10) are installed on the vertical frame (7). Guide wheels (10.3) are arranged on the anti-tilting guide claws (10). The guide wheels (10.3) are rollingly arranged in the guide grooves (1.4).

7. A liftable operation protection platform according to claim 1, characterized in that: Connecting cross bars (11) are respectively connected between the adjacent two-span vertical members on the inner side of the vertical frame (7).

8. A liftable operation protection platform according to claim 1, characterized in that: A diagonal brace (12) is arranged at the overhanging part of the walkway board (3). One end of the diagonal brace (12) is connected to the walkway board (3), and the other end is connected to the connecting plate (2.3). A cross brace (13) is connected between the lower ends of the diagonal braces (12) on both sides of the walkway board (3).

9. The liftable operation protection platform according to claim 1, characterized in that: The invention also comprises an upper limit stopper (14), a lower limit stopper (15) and a stopper (16); the stopper (16) is fixedly mounted on the bracket (2.1); the stopper (16) is located between the upper limit stopper (14) and the lower limit stopper (15) and can be slid to a corresponding position to engage in abutment with the upper limit stopper (14) or the lower limit stopper (15); the upper limit stopper (14) and the lower limit stopper (15) are used to be mounted on the vertical pole (1.1).

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