Quick-fit hanger line fixing device and method of use thereof in the demolition of building structures

Abstract

The application relates to the technical field of building construction, in particular to a quick-mounting type hanging rope fixing device and a use method thereof in building structure demolition, which comprises a hanging rope, a fixing seat, a rotating part, a moving part, an extension part and a blocking column, the lower end of the hanging rope is horizontally provided with a horizontal hole for placing the blocking column, the upper end of the fixing seat is fixedly connected with the bottom of the hanging rope, the rotating part comprises a rotating plate and a first motor, a first rotating shaft is fixedly connected with the output shaft of the first motor, the rotating plate is arranged on the fixing seat, the rotating plate is key-connected with the first rotating shaft, the moving part comprises a bottom plate and a moving plate which are horizontally arranged, the moving plate is slidingly connected with the bottom plate, a second motor for driving the moving plate to slide is fixedly connected with the bottom plate, the extension part comprises an electric telescopic rod which is vertically arranged, the upper end of the electric telescopic rod is fixedly connected with the moving plate, the lower end of the electric telescopic rod is fixedly connected with a baffle, and the blocking column is vertically arranged and connected with the baffle. The scheme can automatically and quickly fix the hanging rope with the floor, improves the demolition progress and avoids accidents.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a quick-mounting type hanging rope fixing device and a use method thereof in building structure demolition. BACKGROUND

[0002] With the development of society, high-rise buildings in the core area of large cities are increasing, but due to the need of urban planning and construction or the building exceeding the service life, etc., the buildings need to be demolished at a certain time.

[0003] Unlike the traditional top-down capping demolition method, the building reverse demolition technology has certain technical advantages. It first cuts the load-bearing column of the bottom layer of the building and installs a jack, and after temporarily supporting the building structure, it starts from the low floor and demolishes layer by layer. When demolishing at the bottom, due to the height limitation of the floor, the use of many traditional heavy machinery for floor demolition is limited by the operation space, and it is often necessary to demolish the floor in the reverse direction at the bottom of the plate, which not only has high construction intensity, but also low efficiency.

[0004] In order to solve the above technical problems, Chinese patent CN105908991B discloses a floor hanging type reverse demolition construction method, which mainly opens a hoisting hole at a suitable position on the floor to be demolished, then fixes one end of the hanging rope to the surrounding fixed object, passes the other end of the hanging rope through the hoisting hole on the floor and fixes it with a horizontal baffle under the floor, and then cuts the periphery of the floor to allow the hanging rope to hang the floor and slowly lower it. Although this construction method can improve the construction efficiency to a certain extent, the head of the hanging rope is fixed and installed by manual operation under the floor with a horizontal baffle, the installation height is high, manual operation needs to use climbing equipment to climb, and the construction environment of floor demolition is complex, so the risk of manual climbing operation is high and accidents are prone to occur. SUMMARY

[0005] The purpose of the present application is to provide a quick-mounting type hanging rope fixing device and a use method thereof in building structure demolition, so as to automatically and quickly fix and install the head of the hanging rope after the hanging rope is passed through the hoisting hole on the floor to be demolished in the reverse demolition technology of high-rise buildings, eliminate the process of manually fixing and installing the head of the hanging rope in a dangerous environment, improve the construction speed and avoid accidents caused by manual climbing operation.

[0006] To achieve the above purpose, the basic scheme of the present application is as follows:

[0007] A quick-mounting type hanging rope fixing device, comprising a hanging rope, a fixing seat, a rotating part, a moving part, an extension part and a blocking column;

[0008] The hanging rope is vertically arranged, and the lower end of the hanging rope is horizontally arranged to place the horizontal hole of the blocking column, and the fixing seat is in the shape of inverted U including two vertically and symmetrically arranged side plates, and the upper end of the fixing seat is fixedly connected with the bottom of the hanging rope;

[0009] The rotating part includes a rotating plate and a first motor, the first motor is fixedly connected with the outer wall of one side plate of the fixing seat, the output shaft of the first motor is arranged in parallel with the horizontal diameter of the horizontal hole, a first rotating shaft is fixedly connected with the output shaft of the first motor in a coaxial manner, the lower end surface of the fixing seat is arranged as an arc surface coaxial with the first rotating shaft, the rotating plate is arranged between the two side plates of the fixing seat in parallel with the two side plates, the lower end of the rotating plate extends out of the fixing seat, an axle hole matched with the first rotating shaft is arranged on the rotating plate, and the rotating plate is keyed with the first rotating shaft.

[0010] The moving part includes a bottom plate and a moving plate both arranged horizontally, the upper surface of the bottom plate is fixedly connected with the bottom of the rotating plate, the lower surface of the bottom plate is provided with a rectangular slot in a direction parallel with the axis of the horizontal hole, a second motor is fixedly connected with the bottom plate, the output shaft of the second motor is arranged in parallel with the axis of the horizontal hole, a threaded rod is fixedly connected with the output shaft of the second motor in a coaxial manner, the threaded rod horizontally extends into the rectangular slot, the two side walls of the rectangular slot are provided with sliding grooves along the length direction of the rectangular slot, the moving plate is arranged horizontally, the two side end surfaces of the moving plate are provided with sliding blocks matched with the sliding grooves, the moving plate is slidingly arranged in the rectangular slot, a threaded hole matched with the threaded rod is arranged on the moving plate, a U-shaped slot penetrating the moving plate is vertically arranged at the end of the moving plate away from the second motor, the axis of the U-shaped slot is located on the same vertical plane as the axis of the horizontal hole, the lower surface of the moving plate is fixedly connected with a semicircular supporting plate corresponding to the U-shaped slot, and the arc surface of the bottom of the U-shaped slot is arranged in a coplanar manner with the inner arc surface of the semicircular supporting plate.

[0011] The telescopic part includes an electric telescopic rod arranged vertically, the upper end of the electric telescopic rod is fixedly connected with the moving plate, and the lower end of the electric telescopic rod is fixedly connected with a baffle, the baffle is arranged horizontally, the blocking column is arranged vertically, the upper end of the blocking column is located in the semicircular supporting plate and in contact with the inner arc surface of the semicircular supporting plate, and the lower end of the blocking column is connected with the baffle.

[0012] Further, the blocking column is a round iron column, in order to prevent the blocking column from shaking excessively when the hanging rope is placed, a magnet is embedded on the inner arc surface of the semicircular supporting plate.

[0013] Further, the inner arc surface of the bottom of the U-shaped slot is arranged as an arc surface matched with the outer circle of the blocking column.

[0014] Further, the first rotating shaft is provided with external splines, and the shaft hole on the rotating plate is provided with internal splines matched with the external splines, and the first rotating shaft is connected with the rotating plate through the splines.

[0015] Further, the lower end of the blocking column is provided with a connecting column coaxially arranged with the blocking column, the upper end of the connecting column is rotationally connected with the blocking column, and the lower end of the connecting column is fixedly connected with a sliding seat, and a through groove matched with the baffle in sliding mode is horizontally arranged in the sliding seat along the length direction of the baffle.

[0016] Further, in order to facilitate the insertion of the blocking column into the horizontal hole, the upper end edge of the blocking column is provided as a tapered surface.

[0017] A method for using a quick-mounting type hanging rope fixing device in building structure demolition, comprising the following steps:

[0018] S1: drilling a hoisting hole at a suitable position of a to-be-demolished floor, the inner diameter size of the hoisting hole being greater than the maximum outer size of the fixing device in the horizontal direction when the fixing device is in a vertical state;

[0019] S2: controlling the hanging rope to lower the fixing device from above the floor through the hoisting hole to below the floor;

[0020] S3: controlling the second motor to rotate to drive the moving plate to move a certain distance, and then operating the first motor to drive the rotating plate to rotate by 90 degrees, so that the blocking column is aligned with the horizontal hole;

[0021] S4: operating the electric telescopic rod to contract to make the blocking column inserted into the horizontal hole, and tightening the hanging rope upward to hoist the floor;

[0022] S5: after the hoisting is completed, loosening the hanging rope to make the fixing device away from the floor by a certain distance, and operating the electric telescopic rod to extend to make the blocking column slide out of the horizontal hole;

[0023] S6: operating the first motor to drive the rotating plate to rotate so that the blocking column is in a vertical state;

[0024] S7: operating the second motor to make the moving plate slide close to the bottom plate;

[0025] S8: extracting the hanging rope fixing device along the axial direction of the hoisting hole.

[0026] Compared with the prior art, the fixing device has the beneficial effects that:

[0027] 1. When not installed, the fixing device is coaxially arranged at the lower end of the head of the hanging rope, and the maximum outer size of the fixing device in the horizontal direction when in a vertical state is smaller than the inner diameter of the hoisting hole on the floor, so that the fixing device can be lowered from above the floor through the hoisting hole to below the floor;

[0028] 2. Drive the second motor to rotate to drive the moving plate to move a certain distance, then run the first motor to drive the rotating plate to rotate 90 degrees, at this time the blocking column is aligned with the horizontal hole, and the electric telescopic rod is run to retract to make the blocking column inserted into the horizontal hole, so that the floor can be hoisted; compared with fixing the hoisting rope head by manually climbing from the bottom of the floor to install the blocking column to fix the hoisting rope, the fixing device automatically fixes and installs the hoisting rope head, the process is simple and fast, the construction progress is effectively improved, and accidents caused by manual climbing installation are avoided, and the safety of workers is ensured.

[0029] 3. After hoisting, the hoisting rope is prevented from loosening, the fixing device is away from the floor by a certain distance, the electric telescopic rod is run to extend to make the blocking column slide out of the horizontal hole, the blocking column falls into the semicircular supporting plate and is fixed by the magnet, the first motor is run to drive the rotating plate to rotate to make the blocking column in a vertical state, and the second motor is run to make the moving plate slide close to the bottom plate, at this time, the maximum size of the fixing device in the diameter direction of the hoisting rope is less than the diameter of the hoisting hole, the hoisting rope and the fixing device can be easily pulled out of the hoisting hole, compared with the prior art that the blocking column is manually pulled out of the horizontal hole at the head of the hoisting rope after the floor hoisting is completed, the hoisting rope is pulled out of the hoisting hole, the hoisting rope of the present scheme is separated from the hoisting hole without manual disassembly, and the process is convenient, fast and safe. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic view in the front view direction of the embodiment of the present application.

[0031] Figure 2 It is Figure 1 A-A sectional view.

[0032] Figure 3 It is a top view direction profile view of the moving plate.

[0033] Figure 4 It is a structural schematic view in the left view direction of the embodiment of the present application.

[0034] Figure 5 It is Figure 4 A bottom view.

[0035] Figure 6 It is a left view direction state diagram after the moving plate moves.

[0036] Figure 7 It is Figure 6 A bottom view.

[0037] Figure 8 It is a left view direction state diagram after the rotating plate rotates.

[0038] Figure 9 It is a left view direction state diagram after the electric telescopic rod retracts.

[0039] Figure 10This is a diagram showing the state of the moving plate after the blocking column comes into contact with the bottom surface of the floor slab and then moves downwards. Detailed Implementation

[0040] The following detailed description illustrates the specific implementation method:

[0041] The reference numerals in the accompanying drawings include: floor slab 10, hoisting hole 101, hoisting rope 20, horizontal hole 201, fixed seat 30, barrier post 40, connecting post 401, sliding seat 402, through groove 4021, rotating plate 501, first motor 502, first rotating shaft 503, base plate 601, rectangular slot 6011, sliding groove 6012, moving plate 602, slider 6021, threaded hole 6022, U-shaped groove 6023, second motor 603, threaded rod 6031, semi-circular support plate 604, magnet 6041, electric telescopic rod 70, and baffle 701.

[0042] Example: Quick-installation suspension rope fixing device, such as Figure 1 As shown, it includes a suspension rope 20, a fixed base 30, a rotating part, a moving part, a telescopic part, and a barrier post 40;

[0043] The suspension rope 20 is vertically installed, and the lower end of the suspension rope 20 body is horizontally provided with a horizontal hole 201 for placing the barrier post 40. The fixing seat 30 is an inverted U-shape including two vertically symmetrical side plates. The upper end of the fixing seat 30 is fixedly connected to the bottom of the suspension rope 20.

[0044] like Figure 1 As shown, the rotating part includes a rotating plate 501 and a first motor 502. The first motor 502 is fixedly connected to the outer wall of one side plate of the fixed base 30. The output shaft of the first motor 502 is parallel to the horizontal diameter of the transverse hole 201. A first rotating shaft 503 is coaxially fixedly connected to the output shaft of the first motor 502. The first rotating shaft 503 horizontally passes through both side plates of the fixed base 30 and is rotatably connected to the fixed base 30. An external spline is provided on the first rotating shaft 503 located between the two side plates. The lower end face of the fixed base 30 is set as an arc-shaped surface coaxial with the first rotating shaft 503. The rotating plate 501 is set on the two side plates of the fixed base 30 and is parallel to the two side plates. The lower end of the rotating plate 501 extends downward outside the fixed base 30. The two side walls of the rotating plate 501 contact the inner walls of the two side plates on the fixed base 30 to prevent the rotating plate 501 from moving in the axial direction of the first rotating shaft 503. The rotating plate 501 is provided with a spline hole that mates with the external spline of the first rotating shaft 503. The spline connection between the rotating plate 501 and the first rotating shaft 503 allows the rotating plate 501 to rotate around the axis of the first rotating shaft 503 between the two side plates of the fixed base 30 under the drive of the first rotating shaft 503.

[0045] The moving part includes a base plate 601 and a moving plate 602 that are both horizontally arranged, combined with Figure 1 ,Figure 2 , Figure 5 , Figure 7 As shown, the upper surface of the base plate 601 is fixedly connected to the bottom of the rotating plate 501. A rectangular slot 6011 is formed on the lower surface of the base plate 601 along a direction parallel to the axis of the horizontal hole 201. The rectangular slot 6011 passes through one end face of the base plate 601. A second motor 603 is fixedly connected to the other end face of the base plate 601. The output shaft of the second motor 603 is parallel to the axis of the horizontal hole 201. A threaded rod 6031 is fixedly connected to the output shaft of the second motor 603. The threaded rod 6031 is coaxial with the output shaft of the second motor 603. The threaded rod 6031 passes through the base plate 601 and extends horizontally into the rectangular slot 6011. Sliding grooves 6012 are formed on both sides of the rectangular slot 6011 along the length direction of the rectangular slot 6011.

[0046] Combination Figure 2 , Figure 3 As shown, the movable plate 602 is horizontally positioned. Slider blocks 6021, which mate with the sliding groove 6012, are provided on both end faces of the movable plate 602. Threaded holes 6022, which mate with the threaded rod 6031, are provided on the movable plate 602. Driven by the second motor 603, the movable plate 602 slides along the length of the sliding groove 6012 within the rectangular slot 6011. A U-shaped groove 6023, penetrating the movable plate 602, is vertically positioned at the end of the movable plate 602 furthest from the second motor 603. The axis of the U-shaped groove 6023 and the axis of the horizontal hole 201 are located on the same vertical plane. (Combined with...) Figures 1-5 The lower surface of the movable plate 602 is fixedly connected to the semi-circular support plate 604 corresponding to the U-shaped groove 6023, and the arc surface at the bottom of the U-shaped groove 6023 and the inner arc surface of the semi-circular support plate 604 are coplanar.

[0047] The telescopic part includes a vertically arranged electric telescopic rod 70, the upper end of which is fixedly connected to the movable plate 602, and the lower end of which is fixedly connected to a baffle 701, which is horizontally arranged.

[0048] The barrier post 40 is a vertically positioned circular iron post. The upper edge of the barrier post 40 is tapered, and its upper end is located within the semi-circular support plate 604, contacting the inner arc surface of the semi-circular support plate 604. To position the barrier post 40, the inner arc surface of the bottom of the U-shaped groove 6023 and the inner arc surface of the semi-circular support plate 604 are both designed to mate with the outer circle of the barrier post 40. Figure 2 As shown, in order to prevent the barrier post 40 from swaying excessively when the suspension rope 20 is placed, a magnet 6041 is embedded in the inner arc surface of the semi-circular support plate 604.

[0049] The lower end of the blocking column 40 is provided with a cylindrical connecting column 401, the connecting column 401 is coaxially arranged with the blocking column 40, the lower end surface of the blocking column 40 is provided with a bearing hole coaxial with the blocking column 40, a thrust bearing is installed in the bearing hole, the upper end of the connecting column 401 is fixedly connected with the inner ring of the thrust bearing, the connecting column 401 is rotatably connected with the blocking column 40 through the thrust bearing, the lower end of the connecting column 401 is fixedly connected with a sliding seat 402, the sliding seat 402 is a horizontally arranged rectangular body, a through groove 4021 in sliding cooperation with the baffle 701 is horizontally arranged through the sliding seat 402 body along the length direction of the baffle 701, and the baffle 701 is inserted into the through groove 4021 to prevent the blocking column 40 from falling.

[0050] A method for using a quick-mounting type hanging rope fixing device in building structure demolition, comprising the following steps:

[0051] S1: Drill a hoisting hole 20 at a suitable position of the floor 10 to be demolished, so that the inner diameter size of the hoisting hole 20 is greater than the maximum outer size of the fixing device in the horizontal direction when the fixing device is in a vertical state;

[0052] S2: Control the hanging rope 20 to lower the fixing device from above the floor 10 through the hoisting hole 20 to below the floor 20;

[0053] S3: Control the second motor 603 to rotate to drive the moving plate 602 to move a certain distance, then operate the first motor 502 to drive the rotating plate 501 to rotate by 90 degrees, so that the blocking column 40 is aligned with the horizontal hole 201 (as shown in Figures 4 to 10

[0054] S4: Operate the electric telescopic rod 70 to retract so that the blocking column 40 is inserted into the horizontal hole 201, and the hanging rope 20 is tightened upward to hoist the floor 10;

[0055] S5: After the hoisting is completed, prevent the hanging rope from loosening, so that the fixing device is away from the floor 10 by a certain distance, and operate the electric telescopic rod 70 to extend so that the blocking column 40 slides out of the horizontal hole 201;

[0056] S6: Operate the first motor 502 to drive the rotating plate 501 to rotate so that the blocking column 40 is in a vertical state;

[0057] S7: Operate the second motor 603 to make the moving plate 602 slide close to the bottom plate 601;

[0058] S8: Extract the hanging rope fixing device along the axial direction of the hoisting hole 20.

[0059] ​The above is only an embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope claimed in this application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A quick-installation suspension rope fixing device, characterized in that: It includes a suspension rope, a fixed base, a rotating part, a moving part, a telescopic part, and a barrier post; The suspension rope is vertically arranged, and the lower end of the suspension rope is horizontally arranged with a horizontal hole for placing the barrier post. The fixing base is an inverted U-shape including two vertically symmetrical side plates, and the upper end of the fixing base is fixedly connected to the bottom of the suspension rope. The rotating part includes a rotating plate and a first motor. The first motor is fixedly connected to the outer wall of one side plate of the fixed base. The output shaft of the first motor is parallel to the horizontal diameter of the transverse hole. A first rotating shaft is coaxially fixedly connected to the output shaft of the first motor. The lower end face of the fixed base is set as an arc-shaped surface coaxial with the first rotating shaft. The rotating plate is set between the two side plates of the fixed base and is parallel to the two side plates. The lower end of the rotating plate extends downward outside the fixed base. The rotating plate is provided with a shaft hole that mates with the first rotating shaft. The rotating plate is keyed to the first rotating shaft. The moving part includes a base plate and a moving plate, both horizontally arranged. The upper surface of the base plate is fixedly connected to the bottom of the rotating plate. A rectangular slot is formed on the lower surface of the base plate along a direction parallel to the axis of the horizontal hole. A second motor is fixedly connected to the base plate. The output shaft of the second motor is parallel to the axis of the horizontal hole. A threaded rod is coaxially fixedly connected to the output shaft of the second motor. The threaded rod extends horizontally into the rectangular slot. Sliding grooves are formed on both side walls of the rectangular slot along the length of the slot. The moving plate is horizontally arranged. Sliding blocks that cooperate with the sliding grooves are provided on both end faces of the moving plate. The moving plate is slidably arranged in the rectangular slot. A threaded hole that cooperates with the threaded rod is provided on the moving plate. A U-shaped groove is vertically arranged at the end of the moving plate away from the second motor, through which the moving plate passes. The axis of the U-shaped groove and the axis of the horizontal hole are located in the same vertical plane. The lower surface of the moving plate is fixedly connected to a semi-circular support plate corresponding to the U-shaped groove. The arc surface at the bottom of the U-shaped groove is coplanar with the inner arc surface of the semi-circular support plate. The telescopic part includes a vertically arranged electric telescopic rod, the upper end of which is fixedly connected to the movable plate, and the lower end of which is fixedly connected to a baffle. The baffle is horizontally arranged, and the blocking post is vertically arranged. The upper end of the blocking post is located inside the semi-circular support plate and contacts the inner arc surface of the semi-circular support plate, and the lower end of the blocking post is connected to the baffle.

2. The quick-installation suspension rope fixing device according to claim 1, characterized in that: The barrier post is a round iron post, and magnets are embedded in the inner arc surface of the semi-circular support plate.

3. The quick-installation suspension rope fixing device according to claim 2, characterized in that: The inner arc surface at the bottom of the U-shaped groove is set as an arc surface that matches the outer circle of the barrier post.

4. The quick-installation suspension rope fixing device according to claim 3, characterized in that: The first rotating shaft is provided with an external spline, and the shaft hole on the rotating plate is provided with an internal spline that mates with the external spline. The first rotating shaft is connected to the rotating plate spline.

5. The quick-installation suspension rope fixing device according to claim 4, characterized in that: A connecting post is provided at the lower end of the barrier post. The connecting post is coaxially arranged with the barrier post. The upper end of the connecting post is rotatably connected to the barrier post. A sliding seat is fixedly connected to the lower end of the connecting post. A through groove that slides through the sliding seat along the length of the baffle is provided to slide with the baffle.

6. The quick-installation suspension rope fixing device according to claim 5, characterized in that: The upper edge of the barrier post is set as a cone.

7. A method for using the quick-installation suspension rope fixing device as described in claim 6 in the demolition of building structures, comprising the following steps: S1: Drill a hoisting hole at a suitable location on the floor slab to be demolished. The inner diameter of the hoisting hole is larger than the maximum outer diameter of the fixing device in the horizontal direction when it is in a vertical position. S2: Control the hoisting rope to lower the fixing device from above the floor slab through the hoisting hole to below the floor slab; S3: Control the second motor to rotate and drive the moving plate to move a certain distance, then run the first motor to drive the rotating plate to rotate 90 degrees so that the barrier post is aligned with the horizontal hole; S4: The electric telescopic rod retracts to insert the barrier post into the horizontal hole, and the hoisting rope is tightened upwards to hoist the floor slab; S5: After hoisting is completed, the anti-loosening hoisting rope will make the fixing device a certain distance away from the floor slab, and the electric telescopic rod will extend to make the barrier column slide out of the horizontal hole. S6: The first motor drives the rotating plate to rotate, so that the barrier post is in a vertical position; S7: Activate the second motor to slide the moving plate closer to the base plate; S8: Pull out the hoisting rope fixing device along the axial direction of the hoisting hole.

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