Construction lifting device and lifting method of construction lifting device

Abstract

The invention provides a construction lifting device and a lifting method of the construction lifting device. The lifting method comprises the following steps: erecting a top cross beam above a target floor in a hoistway; the top cross beam and the main machine platform of the construction lifting device are connected through a driving device; a lift car of the construction lifting device is lifted to be close to the main machine platform, and the lift car is fixedly connected with the main machine platform; and starting the driving device to lift the host platform to the target floor. The method can be executed in the building hoistway, and the operation stability is improved.

Description

Technical Field

[0001] The present invention relates to the field of construction lifting devices, and more specifically, to a construction lifting device and a lifting method thereof. Background Art

[0002] Construction lifting devices are used to carry building materials and transport construction workers during the construction process. As the building height gradually increases, the construction lifting device also needs to be lifted multiple times to increase its operating height and transport goods and workers to higher floors, such as the floor under construction. Existing construction lifting devices are usually set outside the building, and their operation is affected by the external climate and other factors. Summary of the invention

[0003] The purpose of this application is to solve or at least alleviate the problems existing in the prior art.

[0004] On the one hand, a lifting method of a construction lifting device is provided, the method comprising: Erecting a top beam above the target floor in the hoistway; Connecting the top crossbeam and the main platform of the construction lifting device using a driving device; Raising the car of the construction lifting device to be close to the main platform and fixing the car and the main platform in a fixed connection; and The driving device is started to lift the host platform to the target floor.

[0005] Optionally, the step of connecting the top beam and the host platform using a driving device includes: connecting the host platform and the top beam using a fixed pulley and a climbing cable, and connecting a climbing cable to the host platform and passing the climbing cable through the climbing cable.

[0006] Optionally, the lifting method further includes: removing the connection between the host platform and the current floor before starting the driving device, and connecting the host platform to the target floor after the host platform is lifted to the target floor.

[0007] Optionally, the step of fixedly connecting the car and the host platform comprises: Using a plurality of rigid connecting rods to connect the car and the host platform; and The car and the host platform are connected by a flexible cable.

[0008] Optionally, the lifting method further comprises: before erecting the top crossbeam, lifting the top crossbeam to an installation position using a winch disposed on the target floor, a transition pulley installed on the shaft wall, and a cable connecting the winch and the transition pulley.

[0009] Optionally, the lifting method further includes: after erecting the top crossbeam, lifting the car guide rails by means of the hoist and the top crossbeam, and installing the car guide rails so that the car guide rails on both side walls of the shaft extend to the target floor.

[0010] Optionally, the step of erecting a top crossbeam above the target floor in the hoistway includes: horizontally arranging the top crossbeam across the hoistway between the front wall and the rear wall of the hoistway.

[0011] Optionally, the lifting method also includes: extending the compensation chain connected between the counterweight and the bottom of the car and extending the drive cable connected between the main platform, the counterweight and the car before starting the drive device, so that during the lifting process of the main platform, the counterweight remains at the bottom of the shaft.

[0012] Optionally, the lifting method includes: providing a quick-release lock buckle of a compensation chain at the bottom of the counterweight; and extending the length of the compensation chain by the quick-release lock buckle at the bottom of the hoistway after the car rises close to the main platform.

[0013] Optionally, the method further comprises, before the step of extending the drive cable, hoisting the drive cable drum by a winch and the top crossbeam and arranging the drum outside a door opening of a floor below the target floor.

[0014] Optionally, a traction machine is provided on the host platform, at least one end of the drive cable is connected to the host platform via an adjustable rope head component, and the step of extending the drive cable includes: releasing the drive cable via the adjustable rope head component.

[0015] Optionally, the fixed end of the drive cable is connected to the main platform via a first rope end component, and the drive cable is made to pass from the fixed end around the counterweight fixed pulley on the top of the counterweight, the traction machine on the main platform, the car fixed pulley on the top of the car and the second rope end component on the main platform in sequence, and then be wound around the drive rope drum, and the second rope end component is an adjustable rope end component.

[0016] Optionally, the second rope head component includes: a rope head body, the rope head body is connected to the host platform and includes an outer wall, an internal cavity defined by the outer wall and a first port and a second port at both ends of the internal cavity, the size of the internal cavity gradually decreases from the first port to the second port, the wedge block has a shape matching the internal cavity and can be loaded into the internal cavity from the first port, so that the drive cable is stuck between the wedge block and the outer wall of the rope head body, wherein the step of extending the drive cable includes: disassembling the wedge block, removing the drive cable from the second rope head component, and releasing the drive cable from the drive cable drum.

[0017] Optionally, the lifting method also includes arranging the climbing rope as follows: the free end of the climbing rope is wound around a climbing rope drum, then passed through a cable climber connected to a first position on the front side of the main engine platform, extended upward to wrap around a second beam fixed pulley on the top beam, downward to wrap around a second platform fixed pulley connected to the second position on the front side of the main engine platform, horizontally extended to wrap around a first platform fixed pulley connected to a second position on the rear side of the main engine platform, extended upward to wrap around the first beam fixed pulley on the top beam, and finally extended downward to be fixed to the main engine platform by a rope hook at the first position on the rear side.

[0018] Optionally, the lifting method further comprises: extending a speed governor cable between the speed governor and the safety clamp lifting mechanism, and lifting and installing the speed governor on a car guide rail of a target floor.

[0019] Optionally, the speed limiter and the safety clamp lifting mechanism connected to the car are connected via a speed limiter cable, wherein the speed limiter cable includes a first segment connected to the speed limiter and a second segment connected to the safety clamp lifting mechanism, the first segment and the second segment are wound into a U-shape via a wire clamp and connected via a ring buckle, the first segment includes a redundant segment retained by the wire clamp, and the lifting method further includes: extending the speed limiter cable by adjusting the position of the wire clamp to release the redundant segment.

[0020] Optionally, the step of disconnecting the host platform from the current floor includes retracting the front legs and rear legs of the host platform, and the step of connecting the host platform to the target floor includes unfolding the front legs and rear legs.

[0021] According to another aspect, there is also provided a construction lifting device, comprising: A host platform, on which a traction machine and a plurality of mounting positions are arranged; A car and a counterweight, wherein the car and the counterweight are connected to the traction machine on the main platform through a driving rope, and a compensating chain is connected between the bottom of the car and the counterweight; Wherein, hanging rings are provided at the multiple installation positions for connecting to rope hooks, fixed pulleys or cable climbers.

[0022] Optionally, in an embodiment of the construction lifting device, the multiple installation positions include a front first position, a front second position, a rear first position, and a rear second position.

[0023] Optionally, in an embodiment of the construction lifting device, the front first position, the front second position, the rear first position and the rear second position are located at the four corners of the main platform and at the four vertices of a rectangle.

[0024] Optionally, in an embodiment of the construction lifting device, a rope hook is connected to the first rear position, a first platform fixed pulley is connected to the second rear position, a second platform fixed pulley is connected to the second front position, and the cable climber is connected to the first front position.

[0025] Optionally, in an embodiment of the construction lifting device, the front part of the main platform close to the front wall and the rear part close to the rear wall, the front and rear parts of the main platform both include front legs and rear legs that can be telescoped in the front-to-back direction.

[0026] Optionally, in an embodiment of the construction lifting device, a compensation chain quick-release lock buckle is provided at the bottom of the counterweight.

[0027] Optionally, in an embodiment of the construction lifting device, a traction machine is provided on the main engine platform, and at least one end of the driving cable is connected to the main engine platform through an adjustable rope head component.

[0028] Optionally, in an embodiment of the construction lifting device, the fixed end of the drive cable is connected to the main platform through a first rope head component, and from the fixed end, it successively passes around the counterweight fixed pulley on the top of the counterweight, the traction machine, the car fixed pulley on the top of the car, and the second rope head component on the main platform, and then is wound around the drive rope drum.

[0029] Optionally, in an embodiment of the construction lifting device, the second rope head component is an adjustable rope head component.

[0030] Optionally, in an embodiment of the construction lifting device, the second rope head component includes: a rope head body, the rope head body is connected to the main platform and includes an outer wall, an internal cavity defined by the outer wall, and a first port and a second port at both ends of the internal cavity, the size of the internal cavity gradually decreases from the first port to the second port, the wedge block has a shape matching the internal cavity and can be loaded into the internal cavity from the first port, so that the drive cable is stuck between the wedge block and the outer wall of the rope head body.

[0031] Optionally, in an embodiment of the construction lifting device, the construction lifting device includes a speed limiter installed on a car guide rail and a safety clamp lifting mechanism connected to the car, and the speed limiter is connected to the safety clamp lifting mechanism through a speed limiter cable.

[0032] Optionally, in an embodiment of the construction lifting device, the speed limiter cable includes a first segment connected to the speed limiter and a second segment connected to the safety clamp lifting mechanism, and the first segment and the second segment are wound into a U shape through a wire clamp and connected by a ring buckle.

[0033] Optionally, in an embodiment of the construction lifting device, the first segment includes a redundant section retained by the wire clamp.

[0034] The method according to the present invention can be performed in a building hoistway to improve the stability of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The disclosure of the present application will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. In addition, similar numbers in the drawings are used to represent similar components, among which: Figure 1a and Figure 1b The comparison of the positions of the construction lifting device in the hoistway before and after lifting is shown; Figure 2 It shows the arrangement of the hoistway and target floor of the construction lifting device; Figure 3 shows a top crossbeam erected in the hoistway of FIG. 1 ; Figure 4 shows a perspective view of an exemplary top crossbar; Figure 5 A schematic diagram showing installation of car guide rails in a hoistway is shown; Figure 6 A schematic diagram showing an exemplary pre-assembled car guide rail is shown; Figure 7 shows a top view of an exemplary host platform; Figure 8 A schematic diagram showing an exemplary connection between a host platform and a top crossbeam; Fig. 9 Shows Figure 8 A magnified view of the cable climber in FIG. Fig.10 The compensating chain between the counterweight and the car is shown; Fig.11 An exemplary compensating chain quick-release buckle is shown; Fig.12 A schematic diagram showing an exemplary host platform connected to a car is shown; Fig.13 A schematic diagram showing the connection of the connecting rod between the host platform and the car; Figure 14 a- Fig.14c A schematic diagram of a hoisting drive cable drum is shown; Figure 15 a- Fig.15c A schematic diagram of adjusting the second rope end component is shown; Fig.16 A schematic diagram showing the release of the driving cable is shown; Fig.17 A schematic diagram showing an exemplary speed limiter structure is shown; Fig.18 A schematic diagram showing the host platform being connected to the current floor; Fig.19a and Fig.19b Schematic diagrams showing the telescopic states of the telescopic legs of the host platform respectively; and Fig. 20 A schematic diagram showing the direction of the climbing rope after the cable climber is activated. DETAILED DESCRIPTION

[0036] The present invention provides a lifting method for a construction lifting device, such as Figure 1a As can be most easily seen in a and b, the method is intended to lift the main platform 4 of the construction lifting device from the current floor 10 to the target floor 1, thereby expanding the operating range of the car of the construction lifting device. During the construction of the building, the construction lifting device can perform several similar lifts as the building is built to higher floors, thereby transporting parts and workers to floors closer to the construction, facilitating the transportation of building materials and workers, thereby promoting the construction of the building. It should be understood that the construction lifting device according to the present invention is arranged in the hoistway inside the building rather than outside the building, and the lifting process is also carried out in the hoistway.

[0037] The lifting method of the construction lifting device includes: erecting a top crossbeam above a target floor in a hoistway; connecting the top crossbeam and a main platform of the construction lifting device using a driving device; raising the car of the construction lifting device to be close to the main platform and fixing the car and the main platform in connection; and starting the driving device to lift the main platform to the target floor.

[0038] First reference Figures 2 to 4 To introduce the steps of erecting the top beam. First, the top of the hoistway 2 can be closed by a baffle 93 to avoid the influence of the external environment. Subsequently, a top platform 91 can be built at the target floor 1, and the top platform 91 facilitates the operation at the target floor. The hoistway 2 includes a hall door opening, which is arranged at the front wall 22 of the hoistway, and the hoistway generally also includes: a rear wall 21 opposite to the front wall 22 and a pair of side walls between the front wall 22 and the rear wall 21. In some embodiments, a winch 11 can be installed outside the hall door opening of the target floor 1, and the winch 11 is fixed to the floor of the target floor 1 by a plurality of bolts, for example. In addition, a transition pulley 85 is installed at the rear wall 21 of the hoistway above the target floor. Subsequently, the top beam 3 can be hoisted to the installation position using a cable connected to the winch 11 and passing through the transition pulley 85. Alternatively, the top beam 3 can also be lifted and installed in place by other means. In some embodiments, the top beam 3 is horizontally arranged between the front wall 22 and the rear wall 21 of the hoistway across the hoistway. In alternative embodiments, the top cross beam 3 may have other suitable orientations, such as being installed between two side walls, or the top cross beam 3 may also be fixed to the hoistway wall at one end and fixed to the hall door at the other end.

[0039] like Figure 3 and Figure 4 As shown, in some embodiments, the first end 32 of the top crossbeam 3 is connected to the front wall 22 at a position above the hall door of the target floor 1 and the second end 31 of the top crossbeam is connected to the corresponding position of the rear wall 21. The first end 32 and the second end 31 of the top crossbeam 3 are each connected to the front wall or the rear wall of the hoistway through a pair of corbel brackets 35, and the corbel brackets 35 can be arranged above or below the top crossbeam 3 or above and below. In addition, the top crossbeam 3 also includes a connection point 34 when it is hoisted, a connection point 33 for hoisting other components, and a guide rail for arranging pulleys and other structures. Although in the illustrated embodiment, the first end 32 of the top crossbeam 3 is arranged at the front wall of the top of the hall door of the target floor 1, in an alternative embodiment, the first end 32 of the top crossbeam 3 can also be directly installed on the floor outside the hall door opening of the floor 92 above the target floor, and similarly, the first end 32 of the top crossbeam 3 can also be installed to the floor outside the hall door opening of the upper floor 92 through two corbel brackets 35.

[0040] like Figure 5 and Figure 6 As shown, in some embodiments, after the top crossbeam 3 is installed in place, the car guide rail 81 can be lifted by the winch 11 and the top crossbeam 3. Multiple car guide rails 81 can be connected to the first car guide rail after the first car guide rail is lifted to an appropriate height, and more car guide rails can be connected in series in sequence. After the series of car guide rails are lifted, the lowest car guide rail is connected to the original installed guide rail 80. As shown in the figure, the installed car guide rails 80 only reach the target floor 10. In order to enable the car 5 to reach a higher floor, it is necessary to install car guide rails on both side walls of the shaft. The car guide rails are lifted one by one and connected in series. The connection method is for example Figure 6 As shown, a plurality of car guide rails 811, 812 are connected by a connecting plate 813. Figure 5 The car guide rails are shown as being placed on the top of the car, which facilitates subsequent connection and lifting, and then the car guide rails lifted to a predetermined height can be connected to the original guide rails and installed to the side walls of the shaft. In alternative embodiments, the car guide rails can be installed in other suitable ways, or installed during the process of building the shaft or installed as the elevator rises.

[0041] Continue to refer Figures 7 to 9 Herein, how to use a driving device to connect the top cross beam and the main platform of the construction lifting device is introduced. In an embodiment, the step of using a driving device to connect the top cross beam 3 and the main platform 4 includes: using a fixed pulley and a climbing rope to connect the main platform and the top cross beam, and connecting a cable climber to the main platform and passing the climbing rope through the cable climber. It should be connected that in the embodiment described, a fixed pulley, a climbing rope and a cable climber are used to form a driving device, and in an alternative embodiment, the driving device can select any suitable structure.

[0042] like Figure 7As shown, the host platform 4 includes a main body 48, on which a traction machine 43 and a plurality of mounting positions 44, 45, 46, 47 are arranged. In some embodiments, the plurality of mounting positions 44, 45, 46, 47 specifically include a front first position 47, a front second position 46, a rear first position 45, and a rear second position 44 of the host platform. The front first position 47, the front second position 46, the rear first position 45, and the rear second position 44 may be located at the four corners of the host platform and constitute the four vertices of a rectangle. In some embodiments, each mounting position may be provided with a hanging ring. In addition, the front of the main body 48 has two front legs 41 and the rear of the main body 48 has two rear legs 42, and the front legs 41 and the rear legs 42 support the host platform 4 together. Multiple mounting positions can be used to connect rope hooks, fixed pulleys, or cable climbers. In addition, a plurality of fixed pulleys are also provided on the pulley rail of the top crossbeam 3. The cable climber 471 is connected to the main platform 4 and the climbing rope 82 passes through the cable climber 471, and the climbing rope 82 is further passed through the top beam 3 and the fixed pulley on the main platform 4 in a certain order to lift the main platform 4 through the cable climber.

[0043] More specifically, in the illustrated embodiment, one end of the climbing rope is wound around the climbing rope drum 49, then passes through the cable climber 471 connected to the front first position 47 of the host platform, extends upward to wrap around the second beam fixed pulley 39 on the top beam, downward to wrap around the second platform fixed pulley 461 connected to the front second position 46 of the host platform, horizontally extends to wrap around the first platform fixed pulley 451 connected to the rear second position 45 of the host platform, extends upward to wrap around the first beam fixed pulley 38 on the top beam, and finally extends downward to be fixed to the host platform at the rear first position 44 through the rope hook 441. As shown in the figure, the first platform fixed pulley 451, the second platform fixed pulley 461 and the cable climber 471 are respectively connected to the hanging rings at the respective installation positions 44, 45, 46, and 47 on the host platform through the hooks. In some embodiments, in operation, the first beam fixed pulley 38 and the second beam fixed pulley 39 are in the first orientation, and the first platform fixed pulley 451 and the second platform fixed pulley 461 are in the second orientation. In some embodiments, the second orientation is the front-to-back direction (perpendicular to the front wall and the rear wall), and the first orientation is perpendicular to the second orientation. In alternative embodiments, fixed pulleys and climbing cables can be arranged in other ways to connect the host platform 4 and the top crossbeam 3.

[0044] After the above connection steps, several preparation steps can be performed. The order of these preparation steps and the order of the above steps can be interchanged without conflict. First, the car of the construction lifting device is raised to the main platform, for example, the highest position closest to the main platform. At this time, Fig.10As shown, the counterweight 6 is lowered to the bottom of the shaft. In some embodiments, a compensation chain 83 is provided between the counterweight 6 and the bottom of the car 5, and the compensation chain 83 is used to compensate for the weight change caused by the change in the length of the driving cable 81 at the top of the counterweight 6 and the car 5. In some embodiments, a compensation chain quick-release lock buckle 951 is provided at the bottom of the counterweight. Fig.11 As shown, in some embodiments, the compensation chain quick-release buckle 951 may have a main body and detachable pins 952, 953 at both ends of the main body, so that after the car rises to near the main platform, the length of the compensation chain 83 is extended at the bottom of the shaft through the quick-release buckle 951, that is, the compensation chain that needs to be extended is added through the quick-release buckle 951, so that in the subsequent process of lifting the main platform and the car at the same time, the counterweight 6 is kept at the bottom of the car without being lifted, and the supplemented compensation chain can compensate for the weight change of the driving cable 81 caused by the movement of the car during the subsequent operation of the lifting device.

[0045] like Fig.12 and Fig.13 As shown, after the car of the construction lifting device rises to a position close to the host platform, such as the highest position closest to the host platform, before, after or at the same time as the above-mentioned compensation chain extension step, the car 5 and the host platform 4 can be fixedly connected, for example, by connecting the car 5 and the host platform 4 through a connecting member. In some embodiments, the connecting member may include a rigid connecting member 451, which is made of a rigid material, such as a metal rod, to provide a rigid connection between the car 5 and the host platform 4, for example, Fig.13 As can be seen in the figure, the upper end of the metal rod is connected to the steel beam 491 at the bottom of the main platform 4, and the lower end of the metal rod is connected to the car roof guardrail 501 of the car, connecting the main platform and the car into a relatively stable whole, which can reduce or eliminate the shaking of the car 5 relative to the main platform 4 during the lifting process. The rigid connector 451, for example, includes a plurality of rigid connecting rods connected between the main platform 4 and the car 5. In some embodiments, the car 5 and the main platform 4 can also be connected by a flexible cable 452. The flexible cable 452 not only plays a protective role, but also plays a role in partially reducing vibration, especially preventing the accidental fall of the car 5 caused by the failure of the rigid connector 451 during the lifting process. In the illustrated embodiment, the flexible cable 452 is arranged in an X shape. In an alternative embodiment, the flexible cable can be connected in other suitable ways.

[0046] Continue to refer Fig.14a-c, before, after, between or at the same time as each of the above steps, the driving cable drum 50 can be hoisted and arranged outside the hall door of the next floor 99 of the target floor by the hoisting machine 11 and the top cross beam 3 at the target floor 1. Specifically, the driving cable drum 50 is connected to the hoisting machine 11 through the fixed pulley on the top cross beam 3 by using the hoisting rope 89, the driving cable drum 50 is hoisted by the hoisting machine 11, and the driving cable drum 50 is reinstalled outside the hall door of the next floor 99 of the target floor. Similarly, other related equipment, such as a control cabinet, etc., can also be hoisted to the outside of the hall door of the next floor of the target floor by the same method to prepare for lifting the host platform.

[0047] Continue to refer Fig.12 , Figure 15 and Fig.16 , the car 5, the counterweight 6 and the host platform 4 are connected by a driving cable 81. The method according to an embodiment of the present invention also includes releasing enough driving cables 81 before starting the cable climber, so that when the cable climber is started, the counterweight 6 remains at the bottom of the hoistway and the driving cables are tightened after the climbing is completed. In some embodiments, at least one end of the driving cable is connected to the host platform 4 through an adjustable rope head component, and the adjustable rope head component is used to release the driving cable.

[0048] More specifically, in Fig.12 In the exemplary drive cable arrangement shown, the fixed end of the drive cable is connected to the main engine platform 4 via the first rope end component 811, and the first rope end component 811 is a fixed rope end component (not adjustable), so that the fixed end of the drive cable is connected to the main engine platform, and the drive cable is passed around the counterweight fixed pulley 61 at the top of the counterweight, the traction machine 43 on the main engine platform, the car fixed pulley 51 at the top of the car, and the second rope end component 812 on the main engine platform in sequence from the fixed end 811, and is wound on the drive cable drum 50. The second rope end component 812 is an adjustable rope end component, so that the drive cable 81 can be adjusted by the second rope end component 812, and the steps of releasing and tightening the drive cable are achieved by the second rope end component 812.

[0049] Continuing to refer to Figures 15 ac, a specific embodiment of the second rope head component is introduced. The second rope head component includes a rope head body 961, and the rope head body 961 is connected to the host platform through a connecting rod 96. The rope head body 961 includes an outer wall, an internal cavity inside the outer wall, and a first port 965 and a second port 964 at both ends of the internal cavity. The size of the internal cavity gradually decreases from the first port 965 to the second port 964. The size of the second port 964 is configured to allow a double-strand drive cable to be taken out therefrom. A wedge block 963 with a matching shape can be put into the internal cavity from the second port 964. After the drive cable is inserted into the internal cavity from the second port 964 and passes out from the first port 965, the wedge block 963 is added and then reinserted into the internal cavity from the first port 965. This allows the drive cable to be stuck between the wedge block 963 and the outer wall of the rope head body 961 and fixed. In addition, a wire clamp 962 can be set outside the second port 964 for reinforcement. If adjustment is required, as shown in Fig.15b As shown, remove the wedge 963 from the first port 965, and then Fig.15c As shown in FIG. 1 , the drive cable is taken out from the second port 964, and the length of the drive cable can be directly adjusted by releasing the drive cable on the drive cable drum 50. In some embodiments, the method includes releasing enough drive cable, and the step of releasing enough drive cable includes: removing the wire clamp and the wedge block, so that the drive cable wound on the drive cable drum 50 is as shown in FIG. Fig.16 and after releasing enough drive cables, the double-stranded cable is installed back to the rope head body 961 from 964, and then the cable is put into the wedge block 963 again and the wire clamp 962 is installed to fix the drive cable at the second rope head component. In some embodiments, the length of the released drive cable is greater than twice the lifting height.

[0050] In addition, in some embodiments, the construction lifting device further includes a speed limiter, which can be installed on the guide rail of the car at the current floor. Fig.17 As shown, the speed limiter 7 and the safety clamp lifting mechanism 76 are connected by a speed limiter cable, wherein the speed limiter cable includes a first segment 711 connected to the speed limiter and a second segment 72 connected to the safety clamp lifting mechanism 76, the first segment and the second segment are wound into a U-shape by wire clamps 73, 75 and connected by a ring buckle 74, the first segment includes a redundant segment 712 (or free end) retained by the wire clamp 73, and the redundant segment 712 can be placed on the top of the car. The car of the construction lifting device is raised to a position close to the main platform, such as the highest position closest to the main platform. Before, after, between or at any step of the above steps, the lifting method also includes: extending the speed limiter cable by disassembling the wire clamp 73 to release the redundant segment and reinstalling the wire clamp 73, then lifting the speed limiter to the target floor and installing it on the car guide rail above the target floor, and the safety clamp lifting mechanism 76 and the tensioning device at the bottom of the speed limiter cable do not need to be moved.

[0051] refer to Fig.18 , the host platform 4 is supported on the current floor by the front and rear legs that can be extended and retracted in the front and rear directions. Before lifting the host platform 4, Fig.19a As shown in Fig. 1 and Fig. 2, for example, by converting each leg from the extended position to the retracted position, the connection between the main platform 4 and the current floor is removed. Subsequently, the cable climber is started, and the climbing rope between the top beam 3 and the main platform 4 is as shown in Fig. Fig. 20 As shown in the arrow direction, the climbing rope between the two is shortened and the host platform 4 is lifted, until the host platform 4 is raised to the target floor, and then the host platform is connected to the target floor. This step may, for example, include unfolding the retractable legs so that the front legs of the host platform are supported by the floor outside the hall door of the target floor, and the rear legs of the host platform are supported by the brackets 94 pre-installed on the rear wall (refer to Fig.18 ). Subsequently, the driving rope can be adjusted and tightened through the second rope head component, the connecting parts (including hard and soft connections) between the car and the top platform can be removed, and other components can be adaptively reset, debugged, tested and tested. After that, the car can operate normally in a larger height range as shown in Figure 1. It should be understood that the above lifting can be performed multiple times as the building is constructed.

[0052] On the other hand, a construction lifting device is provided, which includes: a main platform 4, on which a traction machine 43 and multiple installation positions 45, 46, 47, 48, a car 5 and a counterweight 6 are arranged, the car 5 and the counterweight 6 are connected to the traction machine 43 on the main platform 4 through a driving cable 81, and a compensation chain 82 is connected between the bottom of the car 5 and the counterweight 6; wherein, multiple installation positions 45, 46, 47, 48 on the main platform are provided with hanging rings for connecting to a rope hook, a fixed pulley or a cable climber. In some embodiments, the front part of the main platform 4 close to the front wall and the rear part close to the rear wall, the front and rear parts of the main platform both include front legs 41 and rear legs 42 that can be telescopic in the front-to-back direction.

[0053] On the other hand, a construction lifting device is provided, which includes: a main platform 4, on which a traction machine 43 and multiple installation positions 45, 46, 47, 48, a car 5 and a counterweight 6 are arranged, the car 5 and the counterweight 6 are connected to the traction machine 43 on the main platform 4 through a driving cable 81, and a compensation chain 82 is connected between the bottom of the car 5 and the counterweight 6; wherein a compensation chain quick-release lock is arranged at the bottom of the counterweight.

[0054] On the other hand, a construction lifting device is provided, which includes: a main platform 4, on which a traction machine 43 and a plurality of installation positions 45, 46, 47, 48, a car 5 and a counterweight 6 are arranged, the car 5 and the counterweight 6 are connected to the traction machine 43 on the main platform 4 through a driving cable 81, and a compensation chain 82 is connected between the bottom of the car 5 and the counterweight 6; wherein at least one end of the driving cable is connected to the main platform through an adjustable rope head component. In some embodiments, the fixed end of the driving cable is connected to the main platform through a first rope head component, and the driving cable, starting from the fixed end, sequentially passes around the counterweight fixed pulley at the top of the counterweight, the traction machine, the car fixed pulley at the top of the car, and the second rope head component on the main platform, and then is wound on the driving cable drum, wherein the second rope head component is an adjustable rope head component, so that the driving cable can be adjusted through the second rope head component, and the second rope head component can be, for example, a combination of the above. Fig.15a -c as described.

[0055] On the other hand, a construction lifting device is provided, which includes: a main platform 4, on which a traction machine 43 and multiple installation positions 45, 46, 47, 48, a car 5 and a counterweight 6 are arranged, the car 5 and the counterweight 6 are connected to the traction machine 43 on the main platform 4 through a driving cable 81, and a compensation chain 82 is connected between the bottom of the car 5 and the counterweight 6; wherein, the construction lifting device includes a speed limiter installed on the car guide rail and a safety clamp connected to the car, the speed limiter is connected to the safety clamp through a speed limiter cable, wherein the speed limiter cable includes a first segment connected to the speed limiter and a second segment connected to the safety clamp, the first segment and the second segment are wound into a U shape by a wire clamp and connected by a ring buckle, wherein the first segment includes a redundant segment retained by the wire clamp.

[0056] The specific embodiments described above in this application are only for more clearly describing the principles of this application, wherein each component is clearly shown or described to make the principles of the present invention easier to understand. Without departing from the scope of this application, those skilled in the art can easily make various modifications or changes to this application. Therefore, it should be understood that these modifications or changes should be included in the scope of patent protection of this application.

Claims

1. A lifting method for a construction lifting device, the method comprising: Erecting a top beam above the target floor in the hoistway; Connecting the top crossbeam and the main platform of the construction lifting device using a driving device; Raising the car of the construction lifting device to be close to the main platform and fixing the car and the main platform in a fixed connection; and The driving device is started to lift the host platform to the target floor.

2. The lifting method according to claim 1, characterized in that: The step of connecting the top cross beam and the main platform using a driving device includes: connecting the main platform and the top cross beam using a fixed pulley and a climbing cable, and connecting a climbing cable to the main platform and passing the climbing cable through the climbing cable.

3. The lifting method according to claim 2, characterized in that: The lifting method further includes: removing the connection between the host platform and the current floor before starting the driving device, and connecting the host platform to the target floor after the host platform is lifted to the target floor.

4. The lifting method according to any one of claims 1 to 3, characterized in that: The step of fixedly connecting the car and the host platform comprises: Using a plurality of rigid connecting rods to connect the car and the host platform; and The car and the host platform are connected by a flexible cable.

5. The lifting method according to any one of claims 1 to 3, characterized in that: The lifting method further comprises: before erecting the top crossbeam, hoisting the top crossbeam to an installation position using a winch disposed on the target floor, a transition pulley installed on a shaft wall, and a cable connecting the winch and the transition pulley.

6. The lifting method according to claim 5, characterized in that: The lifting method further includes: after erecting the top crossbeam, lifting the car guide rails by the hoist and the top crossbeam, and installing the car guide rails so that the car guide rails on the side walls of the shaft extend to the target floor.

7. The lifting method according to any one of claims 1 to 6, characterized in that: The step of erecting a top crossbeam above the target floor in the hoistway includes: horizontally arranging the top crossbeam across the hoistway between the front wall and the rear wall of the hoistway.

8. The lifting method according to any one of claims 1 to 6, characterized in that: The lifting method also includes: before starting the drive device, extending the compensation chain connected between the counterweight and the bottom of the car and extending the drive rope connected between the main platform, the counterweight and the car, so that during the lifting process of the main platform, the counterweight remains at the bottom of the hoistway.

9. The lifting method according to claim 8, characterized in that: The method comprises: arranging a quick-release lock buckle of a compensation chain at the bottom of the counterweight; and extending the length of the compensation chain at the bottom of the hoistway by means of the quick-release lock buckle after the car rises to be close to the main platform.

10. The lifting method according to claim 8, characterized in that: The method further comprises, before the step of extending the driving cable, hoisting the driving cable drum by a winch and the top cross beam and arranging the drum outside a door opening of a floor below the target floor.

11. The lifting method according to claim 8, characterized in that: A traction machine is arranged on the host platform, at least one end of the driving cable is connected to the host platform via an adjustable rope head component, and the step of extending the driving cable comprises: releasing the driving cable via the adjustable rope head component.

12. The lifting method according to claim 11, characterized in that: The fixed end of the driving cable is connected to the main platform through the first rope end component, and the driving cable is made to pass through the counterweight fixed pulley on the top of the counterweight, the traction machine on the main platform, the car fixed pulley on the top of the car and the second rope end component on the main platform in sequence from the fixed end, and then be wound around the driving rope drum, and the second rope end component is an adjustable rope end component.

13. The lifting method according to claim 12, characterized in that: The second rope head component includes: a rope head body, the rope head body is connected to the host platform and includes an outer wall, an internal cavity defined by the outer wall, and a first port and a second port at both ends of the internal cavity, the size of the internal cavity gradually decreases from the first port to the second port, the wedge block has a shape matching the internal cavity and can be loaded into the internal cavity from the first port, so that the drive cable is stuck between the wedge block and the outer wall of the rope head body, wherein the step of extending the drive cable includes: disassembling the wedge block, taking out the drive cable from the second rope head component, and releasing the drive cable from the drive cable drum.

14. The lifting method according to claim 2, characterized in that: The lifting method also includes arranging the climbing rope as follows: the free end of the climbing rope is wound around the climbing rope drum, then passed through the cable climber connected to the main platform at a first position on the front side, extended upward to wrap around the second beam fixed pulley on the top beam, downward to wrap around the second platform fixed pulley connected to the main platform at a second position on the front side, horizontally extended to wrap around the first platform fixed pulley connected to the main platform at a second position on the rear side, extended upward to wrap around the first beam fixed pulley on the top beam, and finally extended downward to be fixed to the main platform at the first position on the rear side through a rope hook.

15. The lifting method according to any one of claims 1 to 6, characterized in that: The lifting method further comprises: extending a speed governor cable between the speed governor and the safety clamp lifting mechanism, and lifting and installing the speed governor on a car guide rail of a target floor.

16. The lifting method according to claim 15, characterized in that: The speed limiter and the safety clamp lifting mechanism connected to the car are connected through a speed limiter cable, wherein the speed limiter cable includes a first segment connected to the speed limiter and a second segment connected to the safety clamp lifting mechanism, the first segment and the second segment are wound into a U shape through a wire clamp and connected through a ring buckle, the first segment includes a redundant section retained by the wire clamp, and the lifting method further includes: extending the speed limiter cable by adjusting the position of the wire clamp to release the redundant section.

17. The lifting method according to claim 3, characterized in that: The step of disconnecting the host platform from the current floor includes retracting the front legs and the rear legs of the host platform, and the step of connecting the host platform to the target floor includes unfolding the front legs and the rear legs.

18. A construction lifting device, comprising: A host platform, on which a traction machine and a plurality of mounting positions are arranged; A car and a counterweight, wherein the car and the counterweight are connected to the traction machine on the main platform through a driving rope, and a compensating chain is connected between the bottom of the car and the counterweight; Wherein, hanging rings are provided at the multiple installation positions for connecting to rope hooks, fixed pulleys or cable climbers.

19. The construction lifting device according to claim 18, characterized in that: The multiple installation positions include a first front position, a second front position, a first rear position and a second rear position, wherein the first front position, the second front position, the first rear position and the second rear position are located at the four corners of the main platform and at the four vertices of a rectangle, wherein the first rear position is connected to a rope hook, the second rear position is connected to a first platform fixed pulley, the second front position is connected to a second platform fixed pulley, and the first front position is connected to the cable climber.

20. The construction lifting device according to claim 18, characterized in that: The front part of the host platform close to the front wall and the rear part close to the rear wall, the front part and the rear part of the host platform both include front legs and rear legs that can be telescopic along the front-to-back direction.

21. The construction lifting device according to any one of claims 18 to 20, characterized in that: A compensation chain quick-release lock buckle is arranged at the bottom of the counterweight.

22. The construction lifting device according to any one of claims 18 to 20, characterized in that: A traction machine is arranged on the main engine platform, and at least one end of the driving cable is connected to the main engine platform through an adjustable rope head component.

23. The construction lifting device according to claim 22, characterized in that: The fixed end of the driving cable is connected to the main platform through a first rope end component, and is wound around the driving cable drum after passing through the counterweight fixed pulley on the top of the counterweight, the traction machine, the car fixed pulley on the top of the car and the second rope end component on the main platform in sequence from the fixed end, wherein the second rope end component is an adjustable rope end component.

24. The construction lifting device according to claim 23, characterized in that: The second rope head component includes: a rope head body, which is connected to the host platform and includes an outer wall, an internal cavity defined by the outer wall, and a first port and a second port at both ends of the internal cavity, the size of the internal cavity gradually decreases from the first port to the second port, and the wedge block has a shape matching the internal cavity and can be loaded into the internal cavity from the first port, so that the driving cable is stuck between the wedge block and the outer wall of the rope head body.

25. The construction lifting device according to any one of claims 18 to 20, characterized in that: The construction lifting device includes a speed limiter installed on the car guide rail and a safety clamp lifting mechanism connected to the car, the speed limiter is connected to the safety clamp lifting mechanism through a speed limiter cable, wherein the speed limiter cable includes a first segment connected to the speed limiter and a second segment connected to the safety clamp lifting mechanism, the first segment and the second segment are wound into a U shape by a wire clamp and connected by a ring buckle, wherein the first segment includes a redundant segment retained by the wire clamp.

Images