A building floor demolition and reconstruction equipment and a reconstruction method thereof

Abstract

The application discloses a kind of existing building floor removal and reconstruction equipment and its reconstruction method, it is characterized in that: the application adopts the multi-section combined support structure formed by supporting steel frame, height-adjusting hydraulic cylinder, lifting frame and lifting hydraulic cylinder, with lifting adjustment function, can be moved horizontally and longitudinally according to needs, and can be accurately adjusted to floor removal marking position, realize the matrix type block cutting of floor, the application has reasonable structure, reduces the difficulty of support and support, realizes the matrix type automatic block cutting of floor, the removal efficiency of floor is greatly improved, avoids the incidental damage to building caused by traditional demolition construction mode, reduces the labor intensity of personnel, and can adjust cutting position and cutting area each time according to actual construction site, with high removal precision, avoids the incidental damage to building caused by traditional demolition construction mode, with good safety performance.

Description

Technical Field

[0001] The present invention relates to a demolition and reconstruction equipment and a reconstruction and expansion method thereof, in particular to a demolition and reconstruction and expansion equipment for an existing building floor and a reconstruction and expansion method thereof, belonging to the technical field of construction equipment. Background Art

[0002] After years of construction and development, the number of old buildings is increasing. At the same time, because the functional design of buildings cannot meet the current usage requirements, more and more buildings need to be rebuilt or expanded, and the number of renovation and expansion projects for old buildings is also increasing. If traditional ordinary construction methods are used to demolish and reconstruct buildings with low original floor heights, there will be many construction problems. Not only are they limited by the available construction space, large demolition equipment cannot be used, and demolition can only be carried out with traditional impact drills and cutting machines. The construction is difficult and construction safety cannot be guaranteed. In addition, the construction efficiency is low and the labor intensity of the construction workers is very high. In addition, the use of traditional demolition construction equipment can easily cause collateral damage to the building, such as destroying the beam and column structure that is not demolished, and cracking the floor slab that is not demolished, which is not conducive to the overall structural safety of the building. In addition, the support and support costs of the demolition process are high. Using traditional steel pipe scaffolding for support and support is not only cumbersome to install and dismantle, but also occupies a large amount of indoor space, which is not conducive to the cleaning and transportation of demolished components. After the demolition components are dismantled and separated, they need to be hoisted with manual assistance. Multiple construction workers are needed on site to complete the fixing and hoisting of the prefabricated components. The hoisting process is relatively inefficient. The demolition components in a suspended state are heavy. For some demolition components that have been partially broken or cracked during the demolition process, it poses a relatively large safety hazard to the operators. It can be seen that this traditional floor demolition operation method has the following problems: low degree of automation, difficulty in demolition construction in limited indoor space, difficulty in hoisting, high labor intensity, detrimental to the overall structural safety of the building, high support and support costs, and difficulty in safety assurance. The present invention is created to solve this technical problem. Summary of the Invention

[0003] The first purpose of the present invention is to address the defects and shortcomings of traditional floor demolition operations, such as low automation, great difficulty in demolition construction in limited indoor spaces, need for cooperation of multiple construction workers in the demolition and hoisting process, great difficulty in hoisting, high labor intensity, which is not conducive to the overall structural safety of the building, high support and support costs, and a relatively large safety hazard to operators. The present invention provides a reasonable structure, which reduces the difficulty of support and support, realizes matrix-type automatic block cutting and demolition of floor slabs, greatly improves the demolition efficiency of floor slabs, only requires one or two people to monitor and assist in demolition and hoisting, reduces labor intensity, and can adjust the cutting position and cutting area each time according to the actual situation of the construction site, with high demolition accuracy, avoiding collateral damage to buildings caused by traditional demolition construction methods, and a kind of equipment for demolition, renovation and expansion of existing building floor slabs with good safety performance.

[0004] The second purpose of the present invention is to address the defects and shortcomings of traditional floor demolition operations, such as low efficiency, easy collateral damage to buildings, and detrimental to the structural safety of buildings, the lack of support and support using traditional steel pipe scaffolding, high labor intensity during the demolition process, and poor safety performance. A method for demolishing and expanding existing building floor slabs is provided, which has a reasonable process, safe and reliable equipment, and can accurately cut and demolish floor slabs, thereby avoiding collateral damage to buildings caused by traditional demolition construction methods and improving construction safety performance.

[0005] In order to achieve the above-mentioned first invention purpose, the technical solution of the present invention is: an existing building floor demolition and expansion equipment, including a supporting steel frame, the supporting steel frame is placed on the ground layer, the supporting steel frame is more than one and is arranged in pairs, a lifting frame is installed between two parallel supporting steel frames, a height adjustment hydraulic cylinder is installed between the upper end of the supporting steel frame and the upper four corners of the lifting frame, horizontal slide rails are arranged horizontally on the left and right sides of the bottom of the lifting frame along the length direction of the supporting steel frame, a sliding seat is installed on the horizontal slide rail, a lifting hydraulic cylinder is vertically installed on the sliding seat, and a lifting hydraulic cylinder is installed on the upper end of the lifting hydraulic cylinder There is a horizontally arranged load-bearing frame, the upper surface of the load-bearing frame is the floor placement surface, and the bottom of the load-bearing frame is respectively installed with a horizontal moving frame and a longitudinal moving frame, the horizontal moving frame and the longitudinal moving frame are on different horizontal planes and are distributed vertically, a horizontal moving device for driving the horizontal moving frame to move back and forth is installed between the load-bearing frame and the horizontal moving frame, a longitudinal moving device for driving the longitudinal moving frame to move back and forth is installed between the load-bearing frame and the longitudinal moving frame, a horizontal cutting machine is installed on the horizontal moving frame through a saw blade height adjustment device, and a longitudinal cutting machine is installed on the longitudinal moving frame through a saw blade height adjustment device.

[0006] Furthermore, the transverse moving device and the longitudinal moving device respectively include a lead screw, a servo motor and a lead screw nut. The lead screw on the transverse moving device is arranged transversely on a horizontal plane, one end of the lead screw is mounted on the supporting frame through a lead screw bearing seat, the other end of the lead screw is coaxially fixed with the rotating shaft of the servo motor, and the outer shell of the servo motor is mounted and fixed on the supporting frame; the lead screw on the longitudinal moving device is arranged longitudinally on a horizontal plane, one end of the lead screw is mounted on the supporting frame through a lead screw bearing seat, the other end of the lead screw is coaxially fixed with the rotating shaft of the servo motor, and the outer shell of the servo motor is mounted and fixed on the supporting frame.

[0007] Furthermore, a plurality of steel rollers are installed at the bottom of the supporting steel frame through a universal wheel seat, telescopic legs are installed at the four corners or multiple stress-bearing parts of the bottom of the supporting steel frame, and a floor support is provided at the top of the supporting steel frame.

[0008] Furthermore, the lower end of the lifting frame extends to the lower part of two parallel supporting steel frames, and the front and rear ends of the lower part of the lifting frame are horizontally connected with a bottom cross beam. The upper end of the bottom cross beam is provided with a groove, and a long single roller or multiple coaxially arranged rollers are installed in the groove.

[0009] Furthermore, an impact hammer is installed on the bottom of the supporting frame, the horizontal movable frame or the vertical movable frame, and the impact hammer head of the impact hammer is facing the bottom of the demolished floor inside the cutting seam of the floor. A plurality of mounting holes are opened on the shelf surface of the floor, and elastic support members are installed in the mounting holes to provide temporary support and buffering for the floor.

[0010] Furthermore, the elastic support member includes an adjustable sleeve, a supporting steel column and a damping spring. The adjustable sleeve is threadedly installed at the bottom of the mounting hole, and the supporting steel column is installed from top to bottom inside the adjustable sleeve. A damping spring is installed between the supporting steel column and the inner bottom of the adjustable sleeve.

[0011] Furthermore, a transverse slide rail is provided on the transverse movable frame along the length direction, a transverse sliding seat is installed on the transverse slide rail, a transverse cutting machine is installed on the transverse sliding seat through a saw blade height adjustment device, a rack parallel to the transverse slide rail is provided on the transverse movable frame, a sliding seat servo motor is installed on the transverse sliding seat, a gear is fixed on the output shaft of the sliding seat servo motor 34, and the gear is engaged with the rack.

[0012] Furthermore, a longitudinal slide rail is provided on the longitudinal movable frame along the length direction, a longitudinal sliding seat is installed on the longitudinal slide rail, a longitudinal cutting machine is installed on the longitudinal sliding seat through a saw blade height adjustment device, a rack parallel to the longitudinal slide rail is provided on the longitudinal movable frame, a sliding seat servo motor is installed on the longitudinal sliding seat, a gear is fixed on the output shaft of the sliding seat servo motor, and the gear is meshed with the rack.

[0013] Further, the saw blade height adjusting device comprises a swing seat, a swing shaft, an upper connecting rod, a lower connecting rod, a hinged shaft and an extension device, the swing shaft is hinged to one end of the swing seat on the transverse sliding seat or the longitudinal sliding seat, the bottom of the swing seat is connected to one end of the upper connecting rod through a connecting shaft, the swing seat is connected to one end of the lower connecting rod through a connecting shaft, the other end of the upper connecting rod is connected to the other end of the lower connecting rod through the hinged shaft, and the hinged shaft is connected to the extension end of the extension device.

[0014] To achieve the above-mentioned second invention purpose, the technical solution of the present application is: a method for demolishing and reconstructing existing building floor, characterized in that it comprises the following steps:

[0015] a. First, arrange the support steel frame on the ground layer, install the lifting frame between the adjacent two support steel frames, so that the lifting frame is located directly below the floor to be demolished, and support the support steel frame through the telescopic supporting leg, and use the floor support to support the floor or beam outside the floor to be demolished;

[0016] b. Then install the bearing frame on the lifting frame, and prepare the cutting equipment and its accessories, and mark the floor to be demolished according to the demolition sequence;

[0017] c. Control the height adjusting hydraulic cylinder to extend upward by a certain distance, so that the lifting frame is lifted to a certain height to ensure that the bearing frame can bear the floor to be demolished from the bottom;

[0018] d. Then control the lifting hydraulic cylinder to act, drive the bearing frame to move upward by a certain distance, so that the floor resting surface on the bearing frame or the upper end of the elastic support is in contact with the bottom surface of the floor to be demolished;

[0019] e. Immediately start the transverse and longitudinal moving devices, and drive the transverse and longitudinal cutting machines to move to the position directly below the floor cutting mark under the help of the laser alignment instrument, and control the saw blade of the cutting machine to align with the cutting mark;

[0020] f. After starting the cutting machine, control the saw blade height adjusting device to drive the cutting machine to move upward by a certain distance, start cutting, and then the cutting machine moves along the sliding rail and cuts according to the cutting mark;

[0021] g. After completing two parallel transverse cutting seams and two longitudinal cutting seams of each floor, start the impact hammer to hammer from bottom to top, so that the cut floor falls to the upper end of the elastic support under the action of gravity, and falls on the floor resting surface after being buffered by the elastic support;

[0022] h. Finally, control the lifting hydraulic cylinder to drive the bearing frame to move downward to the bottom of the lifting frame, and at the same time, control the height adjusting hydraulic cylinder to drive the lifting frame to move downward, to complete the demolition and downward transportation of a single floor.

[0023] The beneficial effects of the present invention are:

[0024] 1. This invention utilizes a multi-section composite support structure consisting of a supporting steel frame, a height adjustment hydraulic cylinder, a lifting frame, and a lifting hydraulic cylinder. This structure features lifting and adjustment capabilities, enabling horizontal and vertical movement as needed, and precise adjustment to the floor slab demolition markings, enabling matrix-style, block-by-block cutting and demolition of the floor slab.

[0025] 2. This invention utilizes a movable and elevating load-bearing frame. This not only supports the removed floor slabs, but also supports them from the bottom. Furthermore, the removed floor slabs can be transported to a ground forklift or other transport equipment, thus avoiding the safety risks of overhead lifting and improving safety.

[0026] 3. This invention utilizes precise transverse and longitudinal cutting devices to achieve precise cutting of floor slabs. After cutting, the slabs are rapidly cut and dropped downward onto the supporting frame with the assistance of an impact hammer. The cutting position and area cut each time can be adjusted based on the actual construction site, demonstrating strong adaptability.

[0027] 4. This invention has a reasonable structure, reduces the difficulty of supporting and shoring, and significantly improves the efficiency of floor demolition. Only one or two people are required to monitor and assist in demolition and lifting, reducing labor intensity. It also achieves high demolition accuracy, avoiding collateral damage to buildings caused by traditional demolition methods. It has excellent safety performance and is widely applicable in the demolition, renovation and expansion of existing buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a usage state diagram of the present invention.

[0030] Figure 3 It is a schematic diagram of the bottom structure of the load-bearing frame assembly of the present invention.

[0031] Figure 4 It is a structural schematic diagram of the elastic support member of the present invention installed on the load-bearing frame.

[0032] Figure 5 It is a structural schematic diagram of the elastic support member of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the transverse moving cutting device of the present invention.

[0034] Figure 7 It is a structural schematic diagram of the longitudinal moving cutting device of the present invention.

[0035] Figure 8 It is a structural schematic diagram of the saw blade height adjustment device of the present invention.

[0036] In the figure: ground layer 1, load-bearing wall 2, floor slab 3, supporting steel frame 4, steel roller 5, telescopic support leg 6, floor slab support 7, height adjustment hydraulic cylinder 8, lifting frame 9, horizontal slide rail 10, sliding seat 11, bottom crossbeam 12, laser calibrator 13, load-bearing frame 14, lifting hydraulic cylinder 15, floor slab shelf surface 16, mounting hole 17, adjustable sleeve 18, supporting steel column 19, damping spring 20, transverse moving frame 21, transverse slide rail 22, transverse sliding seat 23, transverse cutting machine 24, screw 25, servo motor 26, screw nut 27, longitudinal moving frame 28, longitudinal slide rail 29, longitudinal sliding seat 30, longitudinal cutting machine 31, rack 32, gear 33, sliding seat servo motor 34, telescopic device 35, swing seat 36, swing shaft 37, upper connecting rod 38, lower connecting rod 39, hinge shaft 40. DETAILED DESCRIPTION

[0037] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0038] See also Figures 1 to 8 , an existing building floor demolition and expansion equipment of the present invention includes a support steel frame 4, the support steel frame 4 is placed on the ground layer 1, and is characterized in that: there are more than one support steel frames 4 and they are arranged in pairs, a lifting frame 9 is installed between two parallel support steel frames 4, a height adjustment hydraulic cylinder 8 is installed between the upper end of the support steel frame 4 and the upper four corners of the lifting frame 9, horizontal slide rails 10 are horizontally arranged on the left and right sides of the bottom of the lifting frame 9 along the length direction of the support steel frame 4, a sliding seat 11 is installed on the horizontal slide rail 10, a lifting hydraulic cylinder 15 is vertically installed on the sliding seat 11, and a horizontally arranged supporting frame 14 is installed on the upper end of the lifting hydraulic cylinder 15. The upper surface of the load-bearing frame 14 is the floor placement surface 16, and the bottom of the load-bearing frame 14 is respectively installed with a transverse moving frame 21 and a longitudinal moving frame 28. The transverse moving frame 21 and the longitudinal moving frame 28 are on different horizontal planes and are distributed vertically. A transverse moving device is installed between the load-bearing frame 14 and the transverse moving frame 21 to drive the transverse moving frame 21 to move back and forth. A longitudinal moving device is installed between the load-bearing frame 14 and the longitudinal moving frame 28 to drive the longitudinal moving frame 28 to move back and forth. A transverse cutting machine 24 is installed on the transverse moving frame 21 through a saw blade height adjustment device, and a longitudinal cutting machine 31 is installed on the longitudinal moving frame 28 through a saw blade height adjustment device.

[0039] The lateral moving device and the longitudinal moving device respectively include a screw 25, a servo motor 26 and a screw nut 27. The screw 25 on the lateral moving device is arranged horizontally on a horizontal plane, one end of the screw 25 is mounted on the supporting frame 14 through a screw bearing seat, the other end of the screw 25 is coaxially fixed with the rotating shaft of the servo motor 26, the outer shell of the servo motor 26 is mounted and fixed on the supporting frame 14, the screw nut 27 is mounted on the screw 25 and fixed to the lateral moving frame 21; the screw 25 on the longitudinal moving device is arranged longitudinally on a horizontal plane, one end of the screw 25 is mounted on the supporting frame 14 through a screw bearing seat, the other end of the screw 25 is coaxially fixed with the rotating shaft of the servo motor 26, the outer shell of the servo motor 26 is mounted and fixed on the supporting frame 14, the screw nut 27 is mounted on the screw 25 and fixed to the longitudinal moving frame 28.

[0040] The bottom of the supporting steel frame 4 is equipped with multiple steel rollers 5 through a universal wheel seat, the four corners or multiple stress-bearing parts of the bottom of the supporting steel frame 4 are equipped with telescopic legs 6, and the top of the supporting steel frame 4 is provided with a floor support 7.

[0041] The lower end of the lifting frame 9 extends to the lower part of two parallel supporting steel frames 4, and the front and rear ends of the lower part of the lifting frame 9 are horizontally connected to the bottom crossbeam 12; the upper end surface of one side of the bottom crossbeam 12 is provided with a groove, and a long single roller 13 or multiple coaxially arranged rollers 13 are installed in the groove.

[0042] An impact hammer is installed on the bottom of the supporting frame 14, the horizontal movable frame 21 or the longitudinal movable frame 28, and the impact hammer head of the impact hammer is facing the bottom of the demolished floor inside the floor cutting seam. A plurality of mounting holes 17 are opened on the floor placing surface 16, and elastic support members that can temporarily support and buffer the floor are installed in the mounting holes 17.

[0043] The elastic support member includes an adjustable sleeve 18, a supporting steel column 19 and a damping spring 20. The adjustable sleeve 18 is threadedly installed at the bottom of the mounting hole 17. The supporting steel column 19 is installed inside the adjustable sleeve 18 from top to bottom. The damping spring 20 is installed between the supporting steel column 19 and the inner bottom of the adjustable sleeve 18.

[0044] The transverse movable frame 21 is provided with a transverse slide rail 22 along the length direction, a transverse sliding seat 23 is installed on the transverse slide rail 22, a transverse cutting machine 24 is installed on the transverse sliding seat 23 through a saw blade height adjustment device, a rack 32 parallel to the transverse slide rail 22 is provided on the transverse movable frame 21, a sliding seat servo motor 34 is installed on the transverse sliding seat 23, a gear 33 is fixed on the output shaft of the sliding seat servo motor 34, and the gear 33 is meshed with the rack 32.

[0045] The longitudinal movable frame 28 is provided with a longitudinal slide rail 29 along the length direction, and a longitudinal sliding seat 30 is installed on the longitudinal slide rail 29. A longitudinal cutting machine 31 is installed on the longitudinal sliding seat 30 through a saw blade height adjustment device. The longitudinal movable frame 28 is provided with a rack 32 parallel to the longitudinal slide rail 29, and a sliding seat servo motor 34 is installed on the longitudinal sliding seat 30. A gear 33 is fixed on the output shaft of the sliding seat servo motor 34, and the gear 33 is engaged with the rack 32.

[0046] The saw blade height adjustment device includes a swing seat 36, a swing shaft 37, an upper connecting rod 38, a lower connecting rod 39, a hinge shaft 40 and a telescopic device 41. The horizontal sliding seat 23 or the longitudinal sliding seat 30 is hinged to one end of the swing seat 36 through the swing shaft 37, the bottom of the swing seat 36 is connected to one end of the upper connecting rod 38 through the connecting shaft, the swing seat 36 is connected to one end of the lower connecting rod 39 through the connecting shaft, the other end of the upper connecting rod 38 is connected to the other end of the lower connecting rod 39 through the hinge shaft 40, and the hinge shaft 40 is connected to the telescopic end of the telescopic device 41.

[0047] A method for demolishing and renovating an existing building floor, characterized by comprising the following steps:

[0048] a. First, arrange the supporting steel frames 4 on the ground floor 1 and install the lifting frame 9 between two adjacent supporting steel frames 4 so that the lifting frame 9 is directly below the floor to be demolished. Use the telescopic legs 6 to firmly support the supporting steel frames 4, and use the floor support members 7 to support the floor or beam outside the floor to be demolished.

[0049] b. Then install the load-bearing frame 14 on the lifting frame 9, prepare the cutting equipment and its accessories, and mark the partitions of the floor to be demolished according to the demolition order;

[0050] c. Control the hydraulic cylinder 8 to extend upward a certain distance, so that the lifting frame 9 rises to a certain height to ensure that the supporting frame 14 can support the floor to be removed from the bottom;

[0051] d. Then, the lifting hydraulic cylinder 15 is controlled to move upward, driving the supporting frame 14 to move a certain distance upward, so that the floor slab support surface 16 on the supporting frame 14 or the upper end of the elastic support member contacts the bottom surface of the floor slab to be removed;

[0052] e. Immediately start the transverse moving device and the longitudinal moving device, and with the help of the laser aligner 42, drive the transverse cutting machine 24 and the longitudinal cutting machine 31 to move to the bottom of the floor cutting mark, and control the saw blades of the cutting machines to align with the cutting mark;

[0053] f. After starting the cutting machine, control the saw blade height adjustment device to drive the cutting machine to move upward a certain distance. After starting cutting, the cutting machine moves along the slide rail and cuts according to the cutting mark;

[0054] g. After completing two parallel transverse cuts and two longitudinal cuts on each floor slab, start the impact hammer and hammer from bottom to top, so that the cut floor slab falls to the upper end of the elastic support member under the action of gravity, and then falls onto the floor slab support surface 16 after being cushioned by the elastic support member;

[0055] h. Finally, the lifting hydraulic cylinder 15 is controlled to drive the load-bearing frame 14 to move downward to the bottom of the lifting frame 9. At the same time, the height adjustment hydraulic cylinder 8 is controlled to drive the lifting frame 9 to move downward, completing the removal and downward transportation of the single floor slab.

[0056] See also Figures 1 to 5 The present invention adopts a multi-section combined support structure composed of a supporting steel frame 4, a height-adjusting hydraulic cylinder 8, a lifting frame 9 and a lifting hydraulic cylinder 15. It can not only provide effective support for the floor slab to be demolished, ensure the structural safety of the demolished building, and effectively avoid the cracking of the floor slab or beam components that are not demolished, but also can move and adjust the support position according to the construction position, and no longer use steel pipes to set up fixed scaffolding. At the same time, it can also automatically transport the cut and demolished floor slabs and other building components to the ground or transfer equipment, without the need for construction workers to climb and hoisting assistance, avoiding the safety risks of suspended hoisting.

[0057] The present invention employs a support steel frame 4 resting on a ground floor 1. As a ground support structure, the height of the support steel frame 4 is no less than half the existing building floor height and lower than the building floor height. The support steel frames 4 are assembled and used in a plurality of spliced ​​combinations, with the horizontal splicing performed on the ground according to the size of the floor slab to be demolished. The support steel frames 4 are arranged in pairs of parallel pairs, with the top of the area between two adjacent parallel support steel frames 4 facing the floor slab to be demolished. To facilitate movement and accurate adjustment of the support steel frame 4 on the ground, the bottom of the support steel frame 4 is mounted with multiple steel rollers 5 via universal wheel mounts, allowing manual propulsion of the support steel frame 4. Telescopic legs 6 are also mounted at the four corners or multiple stress-bearing locations of the bottom of the support steel frame 4. The telescopic legs 6 can utilize a conventional screw-type adjustment mechanism. When the support steel frame 4 needs to be moved, the telescopic legs 6 are retracted, allowing the bottom of the telescopic legs 6 to be lifted off the ground and the steel rollers 5 to contact the ground. When the movement is complete and fixed support is required, the telescopic legs 6 are lowered, allowing the bottom of the telescopic legs 6 to be supported on the ground. In addition, a floor support 7 is provided on the top of the supporting steel frame 4. The floor support 7 is a small hydraulic cylinder, a jack or other supporting structure, which is used to support the floor or beam on the outside of the floor to be removed from the bottom. It can not only support the floor or beam on the outside of the floor to be removed, but also improve the stability of the supporting steel frame 4 to avoid overturning.

[0058] A lifting frame 9 is mounted between two parallel supporting steel frames 4. The lower end of the lifting frame 9 extends to the lower portions of the two parallel supporting steel frames 4. Made of steel, the upper width of the lifting frame 9 is greater than the spacing between the two supporting steel frames 4 on which it is mounted, while the lower width of the lifting frame 9 is less than the spacing between the two supporting steel frames 4 on which it is mounted. This facilitates the mounting of the upper end of the lifting frame 9 on the supporting steel frames 4. Height adjustment hydraulic cylinders 8 are mounted between the upper ends of the supporting steel frames 4 and the four upper corners of the lifting frame 9. The synchronized extension and retraction of the four height adjustment hydraulic cylinders 8 can drive the lifting frame 9 up and down. The front and rear ends of the lower part of the lifting frame 9 are horizontally connected with a bottom cross beam 12. A groove is provided at the upper end of the bottom cross beam 12. A long single roller 13 or a plurality of coaxially arranged rollers 13 are installed in the groove. The upper rim of the roller 13 is higher than the upper plane of the bottom cross beam 12. The function of the roller 13 is to facilitate the bottom of the floor slab to be placed on the roller 13 and slide outward during the transportation of the cut and removed floor slab to the outside, saving labor and effort. The transportation inside the building can be completed by manpower or small lifting equipment.

[0059] The bottom of the lifting frame 9 is provided with parallel horizontal rails 10 on both sides. The rails 10 extend along the length of the supporting steel frame 4. A horizontally mounted support frame 14 is mounted on the rails 10 via a sliding seat 11. The support frame 14 is a rectangular steel frame structure with a strong load-bearing capacity. The upper surface of the support frame 14 serves as a floor support surface 16. The bottom of the dismantled floor can rest on the floor support surface 16 and support the dismantled floor, supporting the entire dismantled floor from below. An impact hammer is mounted on the bottom of the support frame 14, the transverse movable frame 21, or the longitudinal movable frame 28. The impact hammer is a commonly used power tool, and can be an electric impact hammer. The impact hammer 35 has its impact head facing the bottom of the dismantled floor inside the cut seam of the floor. After the floor is cut, the impact hammer 35 impacts the floor, causing it to fall under the action of gravity. A plurality of mounting holes 17 are provided on the floor support surface 16, and the mounting holes 17 are distributed at the four corners of the floor support surface 16 and at a plurality of equally spaced stress-bearing positions. Elastic support members that can temporarily support and cushion the floor are installed in the mounting holes 17. The elastic support members serve to temporarily support when the floor is cut and removed, and to cushion when the floor falls under gravity, thereby preventing the sudden fall of the demolished floor from generating a huge impact force on the equipment, thereby causing the floor to break and generate flying fragments.

[0060] The bottom of the bearing frame 14 is respectively provided with a transverse moving frame 21 and a longitudinal moving frame 28, and a long strip moving beam structure can also be adopted, the transverse moving frame 21 and the longitudinal moving frame 28 are in different horizontal planes and are vertically distributed, the transverse moving frame 21 is installed on the bottom of the bearing frame 14 through a transverse sliding rail or a transverse sliding groove, and the longitudinal moving frame 28 is installed on the bottom of the bearing frame 14 through a longitudinal sliding rail or a longitudinal sliding groove. A transverse moving device is installed between the bearing frame 14 and the transverse moving frame 21, and the transverse moving device drives the transverse moving frame 21 to move back and forth along the transverse direction on the bottom of the bearing frame 14. Similarly, a longitudinal moving device is installed between the bearing frame 14 and the longitudinal moving frame 28, and the longitudinal moving device drives the longitudinal moving frame 28 to move back and forth along the longitudinal direction on the bottom of the bearing frame 14.

[0061] The transverse moving device and the longitudinal moving device can adopt the same structure, which has various structural forms, for example, a lead screw transmission moving device, a gear and rack moving device, etc. When the lead screw transmission moving device is adopted, the moving device mainly comprises a lead screw 25, a servo motor 26 and a lead screw nut 27, the lead screw 25 on the transverse moving device is arranged along the transverse direction in the horizontal plane, one end of the lead screw 25 is installed on the bearing frame 14 through a lead screw bearing seat, the other end of the lead screw 25 is coaxially fixed with the rotating shaft of the servo motor 26, the shell of the servo motor 26 is fixedly installed on the bearing frame 14, the lead screw nut 27 is installed on the lead screw 25 and is fixed with the transverse moving frame 21, and the servo motor 26 drives the lead screw nut 27 and the transverse moving frame 21 to move accurately through the lead screw 25. The lead screw 25 on the longitudinal moving device is arranged along the longitudinal direction in the horizontal plane, one end of the lead screw 25 is installed on the bearing frame 14 through a lead screw bearing seat, the other end of the lead screw 25 is coaxially fixed with the rotating shaft of the servo motor 26, the shell of the servo motor 26 is fixedly installed on the bearing frame 14, the lead screw nut 27 is installed on the lead screw 25 and is fixed with the longitudinal moving frame 28, and the servo motor 26 drives the lead screw nut 27 and the longitudinal moving frame 28 to move accurately through the lead screw 25.

[0062] In order to realize the accurate movement of the cutting machine in the transverse or longitudinal direction, the transverse moving frame 21 is provided with a transverse sliding rail 22 in the length direction, the transverse sliding rail 22 is provided with a transverse sliding seat 23, the transverse sliding seat 23 and the transverse moving frame 21 are provided with a cutting machine accurate moving device, and the transverse sliding seat 23 is provided with a transverse cutting machine 24. The longitudinal moving frame 28 is provided with a longitudinal sliding rail 29 in the length direction, the longitudinal sliding rail 29 is provided with a longitudinal sliding seat 30, the longitudinal sliding seat 30 and the longitudinal moving frame 28 are provided with a cutting machine accurate moving device, and the longitudinal sliding seat 30 is provided with a longitudinal cutting machine 31.

[0063] The precise movement device of the cutting machine can adopt various structural forms, mainly including a screw precise movement device and a gear rack movement device. Taking the gear rack movement device as an example, a rack 32 parallel to the horizontal slide rail 22 is provided on the horizontal moving frame 21, and a slide seat servo motor 34 is installed on the horizontal sliding seat 23. A gear 33 is fixed to the output shaft of the slide seat servo motor 34, and the gear 33 is engaged with the rack 32. The slide seat servo motor 34 drives the gear 33 to rotate, thereby driving the horizontal slide seat 23 to slide precisely along the horizontal slide rail 22. Similarly, a rack 32 parallel to the longitudinal slide rail 29 is provided on the longitudinal moving frame 28, and a slide seat servo motor 34 is installed on the longitudinal slide seat 30. A gear 33 is fixed to the output shaft of the slide seat servo motor 34, and the gear 33 is engaged with the rack 32. The slide seat servo motor 34 drives the longitudinal slide seat 30 to slide precisely along the longitudinal slide rail 29. The present invention can adjust the cutting position and the area of ​​each cutting according to the actual situation of the construction site. For example, the length of each cutting is 2-3 meters and the weight of the floor slab is 800 kg-2000 kg.

[0064] In addition, when the cutting machine accurately cuts the floor slab, in order to achieve the up and down adjustment of the cutting machine within a certain height range, the present invention installs a saw blade height adjustment device between the horizontal sliding seat 23 and the horizontal cutting machine 24. The saw blade height adjustment device includes a swing seat 36, a swing shaft 37, an upper connecting rod 38, a lower connecting rod 39, a hinge shaft 40 and a telescopic device 41. The horizontal sliding seat 23 or the longitudinal sliding seat 30 is hinged to one end of the swing seat 36 through the swing shaft 37. The bottom of the swing seat 36 is connected to one end of the upper connecting rod 38 through the connecting shaft. The swing seat 36 is connected to one end of the lower connecting rod 39 through the connecting shaft. The other end of the upper connecting rod 38 is connected to the other end of the lower connecting rod 39 through the hinge shaft 40. The hinge shaft 40 is connected to the telescopic end of the telescopic device 41. The present invention uses a controller to achieve the linkage and coordination of the actuators such as the height adjustment hydraulic cylinder 8, the lifting hydraulic cylinder 15, the horizontal moving device, the vertical moving device, the saw blade height adjustment device, and the cutting machine.

[0065] The main steps of the demolition construction method of the present invention are as follows: First, the support steel frame 4 is arranged on the ground layer 1, and the lifting frame 9 is installed between two adjacent support steel frames 4 so that the lifting frame 9 is located directly below the floor to be demolished. The support steel frame 4 is firmly supported by the telescopic legs 6, and the floor support members 7 are used to support the floor or beam outside the floor to be demolished. Then, the load-bearing frame 14 is installed on the lifting frame 9, and the cutting equipment and its accessories are prepared, and the floor to be demolished is divided and marked according to the demolition order. The hydraulic cylinder 8 is controlled to extend upward by a certain distance, so that the lifting frame 9 rises to a certain height to ensure that the load-bearing frame 14 can support the floor to be demolished from the bottom. Then, the lifting hydraulic cylinder 15 is controlled to move upward by a certain distance, so that the floor support surface 16 on the load-bearing frame 14 or the upper end of the elastic support member contacts the bottom surface of the floor to be demolished. Next, the transverse and longitudinal movement devices are activated. With the help of a laser aligner, the transverse cutter 24 and longitudinal cutter 31 are respectively moved to directly below the floor slab cutting mark, and the saw blades of the cutters are controlled to align with the cutting mark. After the cutters are activated, the saw blade height adjustment device is controlled to move the cutters upward a certain distance. After cutting begins, the cutters move along the slide rails and cut according to the cutting mark. After completing two parallel transverse cuts and two longitudinal cuts on each floor slab, the impact hammer is activated and hammered upward from the bottom. Gravity causes the cut floor slab to fall to the upper end of the elastic support member, where it is cushioned by the elastic support member and falls onto the floor slab support surface 16. Finally, the lifting hydraulic cylinder 15 is controlled to drive the load-bearing frame 14 downward to the bottom of the lifting frame 9. Simultaneously, the height adjustment hydraulic cylinder 8 is controlled to drive the lifting frame 9 downward, completing the removal and downward transportation of the single floor slab.

[0066] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be considered that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, the present invention will also have various simple substitutions, improvements and changes without departing from the concept of the present invention. Various simple substitutions, improvements and changes made should be deemed to fall within the scope of protection of the present invention.

Claims

1. An equipment for demolishing and renovating an existing building floor, comprising a supporting steel frame (4), the supporting steel frame (4) being placed on a ground layer (1), and characterized in that: The supporting steel frames (4) are more than one and are arranged in pairs. A lifting frame (9) is installed between two parallel supporting steel frames (4). A height adjustment hydraulic cylinder (8) is installed between the upper end of the supporting steel frame (4) and the upper four corners of the lifting frame (9). Horizontal slide rails (10) are horizontally arranged on the left and right sides of the bottom of the lifting frame (9) along the length direction of the supporting steel frame (4). A sliding seat (11) is installed on the horizontal slide rail (10). A lifting hydraulic cylinder (15) is vertically installed on the sliding seat (11). A horizontally arranged supporting frame (14) is installed on the upper end of the lifting hydraulic cylinder (15). The supporting frame ( The upper surface of the support frame (14) is a floor shelf surface (16), and the bottom of the support frame (14) is respectively installed with a horizontal moving frame (21) and a longitudinal moving frame (28), the horizontal moving frame (21) and the longitudinal moving frame (28) are on different horizontal planes and are vertically distributed. A horizontal moving device for driving the horizontal moving frame (21) to move back and forth is installed between the support frame (14) and the horizontal moving frame (21), and a longitudinal moving device for driving the longitudinal moving frame (28) to move back and forth is installed between the support frame (14) and the longitudinal moving frame (28). The horizontal moving frame (21) is installed with a saw blade height adjustment device. There is a transverse cutting machine (24), a longitudinal cutting machine (31) is installed on the longitudinal moving frame (28) through a saw blade height adjustment device, an impact hammer (35) is installed on the bottom of the carrying frame (14), the transverse moving frame (21) or the longitudinal moving frame (28), the impact hammer (35) is facing the bottom of the demolished floor on the inner side of the floor cutting seam, a plurality of mounting holes (17) are opened on the floor shelf surface (16), and an elastic support member that can temporarily support and buffer the floor is installed in the mounting hole (17), the saw blade height adjustment device includes a swing seat (36), a swing shaft (37), An upper connecting rod (38), a lower connecting rod (39), a hinge shaft (40) and a telescopic device (41); the transverse sliding seat (23) or the longitudinal sliding seat (30) is hinged to one end of the swing seat (36) through a swing shaft (37); the bottom of the swing seat (36) is connected to one end of the upper connecting rod (38) through a connecting shaft; the swing seat (36) is connected to one end of the lower connecting rod (39) through a connecting shaft; the other end of the upper connecting rod (38) is connected to the other end of the lower connecting rod (39) through a hinge shaft (40); and the hinge shaft (40) is connected to the telescopic end of the telescopic device (41).

2. The equipment for dismantling and renovating existing building floors according to claim 1, characterized in that: The lateral moving device and the longitudinal moving device respectively include a lead screw (25), a servo motor (26) and a lead screw nut (27). The lead screw (25) on the lateral moving device is arranged in a lateral direction on a horizontal plane, one end of the lead screw (25) is mounted on the supporting frame (14) through a lead screw bearing seat, the other end of the lead screw (25) is fixed coaxially with the rotating shaft of the servo motor (26), and the housing of the servo motor (26) is fixed on the supporting frame (14); the lead screw (25) on the longitudinal moving device is arranged in a longitudinal direction on a horizontal plane, one end of the lead screw (25) is mounted on the supporting frame (14) through a lead screw bearing seat, the other end of the lead screw (25) is fixed coaxially with the rotating shaft of the servo motor (26), and the housing of the servo motor (26) is fixed on the supporting frame (14).

3. The equipment for dismantling and renovating existing building floors according to claim 1 is characterized in that: The bottom of the supporting steel frame (4) is equipped with a plurality of steel rollers (5) via a universal wheel seat, the four corners or multiple stress-bearing locations of the bottom of the supporting steel frame (4) are equipped with telescopic legs (6), and the top of the supporting steel frame (4) is provided with a floor support member (7).

4. The equipment for dismantling and renovating existing building floors according to claim 1 is characterized in that: The lower end of the lifting frame (9) extends to the lower parts of two parallel supporting steel frames (4), and the front and rear ends of the lower part of the lifting frame (9) are horizontally connected to the bottom cross beam (12). The upper end of the bottom cross beam (12) is provided with a groove, and a long single roller (13) or a plurality of coaxially arranged rollers (13) are installed in the groove.

5. The equipment for dismantling and renovating existing building floors according to claim 1 is characterized in that: The elastic support member includes an adjustable sleeve (18), a supporting steel column (19) and a damping spring (20). The bottom of the mounting hole (17) is threadedly mounted with the adjustable sleeve (18). The interior of the adjustable sleeve (18) is mounted with the supporting steel column (19) from top to bottom. The damping spring (20) is mounted between the supporting steel column (19) and the inner bottom of the adjustable sleeve (18).

6. The equipment for dismantling and renovating existing building floors according to claim 1, characterized in that: The transverse movable frame (21) is provided with a transverse slide rail (22) along the length direction, a transverse slide seat (23) is installed on the transverse slide rail (22), a transverse cutting machine (24) is installed on the transverse slide seat (23) through a saw blade height adjustment device, a rack (32) parallel to the transverse slide rail (22) is provided on the transverse movable frame (21), a slide seat servo motor (34) is installed on the transverse slide seat (23), a gear (33) is fixed on the output shaft of the slide seat servo motor (34), and the gear (33) is meshed with the rack (32).

7. The equipment for dismantling, renovating and expanding existing building floors according to claim 1, characterized in that: A longitudinal slide rail (29) is provided on the longitudinal movable frame (28) along the longitudinal direction, a longitudinal sliding seat (30) is installed on the longitudinal sliding rail (29), a longitudinal cutting machine (31) is installed on the longitudinal sliding seat (30) through a saw blade height adjustment device, a rack (32) parallel to the longitudinal slide rail (29) is provided on the longitudinal movable frame (28), a sliding seat servo motor (34) is installed on the longitudinal sliding seat (30), a gear (33) is fixed on the output shaft of the sliding seat servo motor (34), and the gear (33) is meshed with the rack (32).

8. A method for demolishing, renovating and expanding an existing building floor slab using the demolishing, renovating and expanding equipment for an existing building floor slab according to any one of claims 1 to 7, characterized in that The following steps are involved: a. First, arrange the supporting steel frames (4) on the ground layer (1), and install the lifting frame (9) between two adjacent supporting steel frames (4) so ​​that the lifting frame (9) is located directly below the floor to be demolished. The supporting steel frames (4) are firmly supported by the telescopic legs (6), and the floor support members (7) are used to support the floor or beam outside the floor to be demolished; b. Then, the load-bearing frame (14) is mounted on the lifting frame (9), and the cutting equipment and its accessories are prepared, and the floor slabs to be demolished are marked in the order of demolition; c. Controlling the hydraulic cylinder (8) to extend upwards to a certain distance, so that the lifting frame (9) rises to a certain height to ensure that the load-bearing frame (14) can support the floor slab to be removed from the bottom; d. Then, the lifting hydraulic cylinder (15) is controlled to move, and the supporting frame (14) is driven to move upward by a certain distance, so that the floor slab support surface (16) on the supporting frame (14) or the upper end of the elastic support member contacts the bottom surface of the floor slab to be removed; e. Immediately start the transverse moving device and the longitudinal moving device, and with the help of the laser aligner (42), drive the transverse cutting machine (24) and the longitudinal cutting machine (31) to move to the position directly below the cutting mark of the floor slab, and control the saw blades of the cutting machines to align with the cutting mark; f. After starting the cutting machine, control the saw blade height adjustment device to drive the cutting machine to move upward a certain distance. After starting cutting, the cutting machine moves along the slide rail and cuts according to the cutting mark; g. After completing two parallel transverse cutting seams and two longitudinal cutting seams on each floor slab, start the impact hammer (35) and hammer from bottom to top, so that the cut floor slab falls to the upper end of the elastic support member under the action of gravity, and falls on the floor slab shelf surface (16) after being buffered by the elastic support member; h. Finally, the lifting hydraulic cylinder (15) is controlled to drive the load-bearing frame (14) to move downward to the bottom of the lifting frame (9). At the same time, the height adjustment hydraulic cylinder (8) is controlled to drive the lifting frame (9) to move downward, completing the removal and downward transportation of the single floor slab.

Images