Climbing frame horizontal height difference control method and horizontal detector

Abstract

The present invention discloses a method for controlling the horizontal height difference of a climbing formwork and a horizontal detector, which relates to the technical fields of construction equipment and horizontal group hoisting. The height difference of a point is detected by a floating ball type horizontal detector or a hanging movable pulley type horizontal detector, and it is judged whether the climbing formwork is in a diagonal inclination state or an opposite side inclination state. For the diagonal inclination state or the opposite side inclination state, targeted control methods are used. The hoisting mechanism at the point has always been between the load limit value and the no-load value. Then, the controller controls the hoist lifting actions of each lifting point, so that each lifting point of the object being lifted is in a horizontal state, preparing for the subsequent lifting work. The safety is extremely high, and the levelness of the object being lifted can be adjusted very conveniently, avoiding potential safety hazards such as the skew of the object being lifted, the overload of the hoisting mechanism, and the collapse of the object being lifted during the subsequent lifting process.

Description

Technical Field

[0001] The present invention relates to the technical fields of construction equipment and horizontal group lifting, and particularly to a method for controlling the horizontal height difference of a climbing frame and a horizontal detector. Background Art

[0002] The construction climbing frame is a new type of scaffolding technology that has developed rapidly at the beginning of this century and has an important impact on the progress of construction technology in China. It changes high-altitude operations into low-altitude operations and suspended operations into operations inside the frame body, and has remarkable characteristics such as low carbon, high-tech content, economy, safety, and convenience, and has been widely used in high-rise building construction. The climbing frame body is assembled in sections and pieces, with an extended length exceeding 100 meters and a height of 10 - 15 meters, and climbs up or down along the construction building by dozens of low-speed chain electric hoists as the power. Due to the harsh environment on the construction site and the huge volume of the climbing frame, it is difficult to find a suitable horizontal plane as a reference benchmark for building the climbing frame. Therefore, the just-built climbing frame is often not horizontal, and during subsequent climbing, some electric hoists may be overloaded, damaged or even cause accidents due to the skew of the frame body. As an important equipment for construction, although relative safety protection functions have been implemented in aspects such as overload protection of the hoist and automatic control, there has been a blank state in the horizontal adjustment of the climbing frame. Therefore, the horizontal adjustment before the climbing frame is lifted and lowered is crucial for the safe lifting and lowering of the climbing frame. Summary of the Invention

[0003] 1. Technical Problems to be Solved by the Invention

[0004] Aiming at the technical problem that the existing construction climbing frame cannot be adjusted horizontally, resulting in overload and damage of some electric hoists and even causing accidents, the present invention provides a method for controlling the horizontal height difference of a climbing frame and a horizontal detector, which can conveniently, quickly and safely adjust the level of the climbing frame and avoid overloading of the lifting mechanism and even causing safety accidents.

[0005] 2. Technical Solutions

[0006] To solve the above problems, the technical solutions provided by the present invention are as follows:

[0007] A method for controlling the horizontal height difference of a climbing frame, comprising the following steps:

[0008] First, divide the climbing frame into several sections with the hanging points of the installed lifting mechanism, install a floating ball type horizontal detector at each hanging point position, or install a movable pulley type horizontal detector between two hanging points, set a floating ball type horizontal detector at the corresponding position below the point position of the climbing frame or set a hanging movable pulley type horizontal detector below the section, connect the lifting mechanism and the horizontal detector to the controller, and start the lifting mechanism to lift the climbing frame;

[0009] Second, the floating ball type horizontal detector or the suspended movable pulley type horizontal detector detects the height difference of the points, generates an electrical signal and transmits it to the controller. The controller judges each point, sorts the points in order of height, counts the high and low positions of all points, and judges whether the climbing frame is in a diagonal tilt state or an opposite side tilt state;

[0010] Third, set the load limit value and no-load value of the lifting mechanism. Load limit value: the maximum load of the lifting mechanism. When the load exceeds the load limit value, the controller will control the lifting mechanism to stop lifting. No-load value: the minimum load of the lifting mechanism. When the load is less than the no-load value, the controller will control the lifting mechanism to stop lifting. Judge whether the climbing frame is in a diagonal tilt state or an opposite side tilt state: If the lowest point detected by the horizontal detector is single, it is in a diagonal tilt state; if the lowest point detected by the horizontal detector is double, it is in an opposite side tilt state;

[0011] Fourth, adjustment of the diagonal tilt state:

[0012] Start the lifting mechanism at the lowest point and lift the lowest point, and temporarily stop the other lifting mechanisms. According to the force analysis, the load of the first adjacent point of the lowest point decreases with the increase of the height. When the load of the first adjacent point reaches the no-load value or the lifting mechanism at the lowest point reaches the load limit value, the lifting mechanism at the lowest point stops.

[0013] Start the lifting mechanism at the first adjacent point and lift it. The load of the second adjacent point on the other side of the first adjacent point decreases with the increase of the height. When the load of the second adjacent point reaches the no-load value or the lifting mechanism at the first adjacent point reaches the load limit value, the lifting mechanism at the first adjacent point stops. Repeat this step until the load at the highest point reaches the no-load value;

[0014] Fifth, adjustment of the opposite side tilt state:

[0015] Start the lifting mechanisms at the points at both ends of the side where the lowest point is located and lift the points, and temporarily stop the other lifting mechanisms. The points between the two end points and the load of the first adjacent point decrease with the increase of the height. When the load reaches the no-load value or the lifting mechanisms at the two end points reach the load limit value, the lifting mechanisms at the two end points stop.

[0016] Start the lifting mechanisms at the points between the two end points and the first adjacent point and lift them. The load of the second adjacent point of the first adjacent point decreases. When the load reaches the no-load value or the lifting mechanisms at the points between the two end points and the adjacent points reach the load limit value, the lifting mechanisms at the points between the two end points and the adjacent points stop. Start the lifting mechanism at the second adjacent point and lift it. Repeat this step until the load at the highest point reaches the no-load value.

[0017] Optionally, a load detection sensor is provided in the lifting mechanism.

[0018] Optionally, it further includes a free adjustment method:

[0019] 1. When the climbing frame is on the ground, lift and pre-tighten all hoisting mechanisms. At this time, the climbing frame is not suspended.

[0020] 2. After the pre-tightening is completed, all hoisting mechanisms rise by x cm, where x ranges from 1 to 10 cm, and then record the rising height and load value of each hoisting mechanism.

[0021] 3. For points at different heights, install a float-type horizontal detector, and control the hoisting mechanism at the low point to rise until the float-type horizontal detector does not alarm.

[0022] A platform segment horizontal detector based on a suspended movable pulley, used for the climbing frame horizontal height difference control method, includes a platform segment with at least one segment. Symmetrically arranged cables are provided below a single segment of the platform segment. Both ends of the cables are fixedly connected to symmetric ends on the platform segment. A movable pulley is rotatably connected to the cables. A suspended weight for counterweight is rotatably connected to the shaft of the movable pulley. A central position detection mechanism cooperating with the movable pulley is provided below a single segment of the platform segment. The central position detection mechanism is connected to a controller.

[0023] Optionally, the central position detection mechanism is a proximity switch. The proximity switch is located above the movable pulley and is symmetrically arranged about the center of the platform segment.

[0024] Optionally, the central position detection mechanism is a distance sensor. The distance between the distance sensor and the central position of the platform segment is a fixed value.

[0025] Optionally, the central position detection mechanism is a distance sensor. The distance sensors are located on both sides of the movable pulley and are symmetrically arranged about the center of the platform segment.

[0026] A float-type platform segment horizontal detector, used for the climbing frame horizontal height difference control method, includes a plurality of height detectors uniformly arranged on the platform segment. The height detector includes a vertical pipe filled with liquid. A float with a density less than the liquid is provided in the vertical pipe. A sensor for detecting the height of the float is provided at the top of the vertical pipe. The vertical pipes of the plurality of height detectors are connected in communication.

[0027] Optionally, the sensor is a proximity switch.

[0028] Optionally, the sensors are all connected to a controller, and the controller is connected to the driving device of the platform segment.

[0029] 3. Beneficial effects

[0030] Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects:

[0031] In the technical solution provided by the present invention, the height difference of the points is detected by a floating ball type horizontal detector or a hanging movable pulley type horizontal detector, and it is judged whether the climbing frame is in a diagonal inclination state or an opposite side inclination state. For the diagonal inclination state or the opposite side inclination state, a targeted control method is used. The lifting mechanism of the points has always been between the load limit value and the no-load value, with extremely high safety. The levelness of the climbing frame can be adjusted conveniently, quickly and safely, avoiding overloading of the lifting mechanism and even causing safety accidents. Description of the Drawings

[0032] Figure 1 It is a schematic flow chart of the climbing frame horizontal height difference control method proposed in the embodiment of the present invention.

[0033] Figure 2 It is one of the implementation manners of the climbing frame horizontal height difference control method proposed in the embodiment of the present invention.

[0034] Figure 3 It is a schematic structural diagram of the platform segmented horizontal detection device based on a hanging movable pulley proposed in the embodiment of the present invention.

[0035] Figure 4 It is a schematic structural diagram of a floating ball type platform segmented horizontal detector proposed in the embodiment of the present invention.

[0036] Figure 5 It is a schematic structural diagram of a floating ball type platform segmented horizontal detector proposed in the embodiment of the present invention.

[0037] 1. Point 1; 2. Point 2; 3. Point 3; 4. Point 4; 5. Point 5; 6. Point 6; 7. Point 7; 8. Point 8; 9. Climbing frame; 10. Lifting mechanism; 11. Building; 12. Platform segment; 13. First proximity switch; 14. Movable pulley; 15. Suspended weight; 16. Cable; 17. Connecting pipe; 18. Second proximity switch; 19. Fixed plate; 20. Floating ball; 21. Vertical pipe. Detailed Embodiment

[0038] To further understand the content of the present invention, the present invention will be described in detail in combination with the drawings and embodiments.

[0039] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the sake of convenience in description, only the parts related to the invention are shown in the drawings. The terms "first", "second", etc. used in the present invention are set for the convenience of describing the technical solution of the present invention and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present invention. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradiction or conflict, and all are within the scope of protection required by the present invention.

[0040] Embodiment 1

[0041] In combination with the attached Figures 1-5 For the convenience of description, hereinafter, the "attached lifting operation safety protection platform for building construction" will be abbreviated as "scaffold climber". Other large suspended objects not listed will also be replaced by "scaffold climber". The hoist related to lifting is also abbreviated as "scaffold climber"

[0042] The present invention discloses a method for controlling the horizontal height difference of a scaffold climber, including the following steps:

[0043] 1. Divide the climbing frame 9 into several sections with the lifting points for installing the lifting mechanism 10. Install a floating ball type horizontal detector at each lifting point position, or install a moving pulley type horizontal detector between two lifting points. Set a floating ball type horizontal detector at the corresponding position below the point position of the climbing frame 9 or install a hanging moving pulley type horizontal detector below the section. Connect the lifting mechanism 10 and the horizontal detector to the controller, and start the lifting mechanism 10 to lift the climbing frame 9;

[0044] 2. The floating ball type horizontal detector or the hanging moving pulley type horizontal detector detects the height difference of the point positions, generates an electrical signal and transmits it to the controller. The controller judges each point position, sorts the point positions in order of height, and counts the high and low positions of all point positions;

[0045] 3. Set the load limit value and no-load value of the lifting mechanism 10. Load limit value: the maximum load of the lifting mechanism 10. When the load exceeds the load limit value, the controller will control the lifting mechanism 10 to stop lifting. No-load value: the minimum load of the lifting mechanism 10. When the load is less than the no-load value, the controller will control the lifting mechanism 10 to stop lifting. The load limit value and the no-load value can both be calculated according to the safety manual, or more conservative values can be adopted to further improve safety. A load detection sensor is provided in the lifting mechanism 10, which is a force value sensor and is used to transmit a force value signal to the controller to judge whether the climbing frame 9 is in a diagonal tilt state or an opposite side tilt state. The judgment method for the climbing frame 9 to be in a diagonal tilt state or an opposite side tilt state is:

[0046] If the lowest point position detected by the horizontal detector is single, it is in a diagonal tilt state; if the lowest point position detected by the horizontal detector is double, it is in an opposite side tilt state.

[0047] 4. Diagonal tilt state adjustment:

[0048] Start the lifting mechanism 10 at the lowest point position and lift the lowest point position, and the other lifting mechanisms 10 will stop temporarily. According to the force analysis, the load of the first adjacent point position of the lowest point position decreases with the increase of height. When the load of the first adjacent point position reaches the no-load value or the lifting mechanism 10 at the lowest point position reaches the load limit value, the lifting mechanism 10 at the lowest point position stops.

[0049] Start the lifting mechanism 10 at the first adjacent point position and lift it. The load of the second adjacent point position on the other side of the first adjacent point position decreases with the increase of height. When the load of the second adjacent point position reaches the no-load value or the lifting mechanism 10 at the first adjacent point position reaches the load limit value, the lifting mechanism 10 at the first adjacent point position stops. Repeat this step until the load at the highest point position reaches the no-load value;

[0050] According to the force analysis, the load of the first adjacent point position of the lowest point position decreases with the increase of height. Since the climbing frame 9 is fixedly connected in sections and is rigid, the load of its adjacent point position will decrease after one point position is lifted.

[0051] In this embodiment, the hoisting mechanism 10 is a hoist. At the beginning, the rigid climbing frame 9 is first lifted to the initial position, and all hoists are loaded. Each hoist controller stores this load value as a reference for the load condition during the subsequent leveling process. If the climbing frame 9 is tilted, at least one of its two pairs of diagonals must be not in a horizontal state. When there is a diagonal of the climbing frame 9 that is not horizontal, the hoist corresponding to the higher point temporarily stops, and the hoist corresponding to the lower point is lifted. Then the load of the adjacent hoist decreases. When the load values of two adjacent hoists drop to the unloaded value, these two hoists start to lift, and then the two hoists adjacent to these two hoists become unloaded and start to lift until the lower point and the higher point are horizontal. In this way, leveling can be achieved by using the height of the highest point as a reference and lifting the other points to this height.

[0052] Free adjustment method:

[0053] I. Lift and pre-tighten all hoisting mechanisms 10 when the climbing frame 9 is on the ground. At this time, the climbing frame 9 is not suspended.

[0054] II. After pre-tightening, all hoisting mechanisms 10 rise by x cm, where x ranges from 1 to 10 cm. In this embodiment, x can be 1 cm, 5 cm, or 10 cm, which are empirically set parameters. This makes the climbing frame 9 completely suspended, but the height from the ground is very low and there is no safety hazard. Then record the rising height and load value of each hoisting mechanism 10.

[0055] III. When there are points at different heights, install a float 20 - type level detector, and control the hoisting mechanism 10 at the lower point to rise until the float 20 - type level detector does not alarm.

[0056] The level detector can detect the tilt state between the corresponding two diagonal points, and convert this state into a digital quantity to control the two climbing frame hoists at the diagonals in real time through the controller. The relatively higher point is at a low level, and the relatively lower point is at a high level. According to the signals received from the level detectors on both sides, the height states of the respective corresponding points relative to the diagonal points can be obtained. If the digital quantity signals received by the climbing frame hoist at a point are all at a low level, then this point is the relatively higher point and remains stationary; if the digital quantity signal received by the climbing frame hoist at a point is at a high level, then this point is the relatively lower point.

[0057] Such as Figure 2As shown, if the climbing frame 9 is in a diagonal tilt state, that is, the 5th position 5 is relatively low, the horizontal detector will transmit a high-level signal to the 5th position 5 and a low-level signal to the 1st position 1. The 5th position 5 starts to lift, and the other climbing frame hoists temporarily stop. When the 5th position 5 starts to lift, the load on the adjacent 4th position 4 and 6th position 6 decreases. When the load values of the 4th position 4 and 6th position 6 drop to the set unloaded value, the 4th position 4 and 6th position 6 start to lift. Similarly, the load on the 3rd position 3 and 7th position 7 decreases. When the load on the 3rd position 3 and 7th position 7 drops to the unloaded value, the 3rd position 3 and 7th position 7 start to lift. Subsequently, the load on the 2nd position 2 and 8th position 8 decreases. When the load on the 2nd position 2 and 8th position 8 drops to the unloaded value, the 2nd position 2 and 8th position 8 start to lift. When the 5th position 5 is level with the 1st position 1, the leveling of the initial position of the climbing frame 9 of the building 11 is completed.

[0058] A platform segment 12 horizontal detector based on a hanging movable pulley 14 for the horizontal height difference control method of the climbing frame 9 described above, including a platform segment 12 provided with at least one segment. Symmetrically arranged cables 16 are provided below a single segment of the platform segment 12. Both ends of the cable 16 are fixedly connected to the symmetrically arranged two ends on the platform segment 12. A movable pulley 14 is rotatably connected to the cable 16. A hanging weight 15 for counterweight is rotatably connected to the shaft of the movable pulley 14. A central position detection mechanism cooperating with the movable pulley 14 is provided below a single segment of the platform segment 12. The central position detection mechanism is connected to a controller. The cable 16 is flexible, and the movable pulley 14 is rotatably connected to the cable 16. The position of the movable pulley 14 on the cable 16 depends on the levelness of the platform segment 12. When the platform segment 12 tilts to one side, the movable pulley 14 shifts to this side. The cable 16 is symmetrically arranged about the center of the platform segment 12. If the platform segment 12 is level, the movable pulley 14 is located at the central position. By using the central position detection mechanism for detection, it can be detected whether the platform segment 12 is level. The central position detection mechanism is connected to a controller for collecting and discriminating information. A hanging weight 15 for counterweight is rotatably connected to the shaft of the movable pulley 14 to ensure that the movable pulley 14 is always in a vertical state and rolls in cooperation with the cable 16, avoiding the tipping of the movable pulley 14. Both ends of the cable 16 are fixedly connected by bonding or bolts. Both the movable pulley 14 and the hanging weight 15 are made of stainless steel materials to avoid rusting and extend the service life.

[0059] The central position detection mechanism is a proximity switch, which is located above the movable pulley 14 and is symmetrically arranged about the center of the platform segment 12. A proximity switch is a position switch that can be operated without mechanical direct contact with moving parts. When an object approaches the sensing surface of the proximity switch to the operating distance, the switch can be actuated without mechanical contact and without applying any pressure, thereby sending a signal to the controller. In this device, it sends whether the movable pulley 14 is at the center position of a single segment of the platform segment 12, so as to judge whether a single segment of the platform segment 12 is horizontal.

[0060] A float ball 20 type platform segment 12 level detector, which is used for the climbing frame 9 level height difference control method, includes a plurality of height detectors uniformly arranged on the platform segment 12. The height detector includes a vertical pipe 21 filled with liquid, and a float ball 20 with a density less than that of the liquid is arranged in the vertical pipe 21. A sensor for detecting the height of the float ball 20 is arranged at the top of the vertical pipe 21, and the vertical pipes 21 of the plurality of height detectors are connected. The existing platform segment 12, as an important equipment for building 11 construction, although relatively safe protection functions have been done in aspects such as hoist overload protection and automatic control, it has been in a blank state in terms of the horizontal adjustment of the platform segment 12. This float ball 20 type platform segment 12 level detection device fills this blank. The plurality of height detectors are evenly distributed on the platform segment 12. In this embodiment, the platform segment 12 is rectangular, and the height detectors are arranged at the four corners. When the platform segment 12 is inclined, the height difference at the four corners is the largest. The height detector includes a vertical pipe 21 filled with liquid, and the float ball 20 can float up and down in the vertical pipe 21. A sensor is arranged above the vertical pipe 21 to detect the height of the float ball 20. All the vertical pipes 21 are connected. Then the liquid level is horizontal. When the platform segment 12 is inclined and there is a height difference between the height detectors, it is possible to detect whether the platform segment 12 is horizontal by relying on the float ball 20 and the liquid level height detected by the sensor. The operation is simple and fast, and the efficiency is very high. The vertical pipes 21 are connected through a communicating pipe 17.

[0061] The sensor is a proximity switch. A proximity switch is a position switch that can be operated without mechanical direct contact with moving parts. When an object approaches the sensing surface of the proximity switch to the operating distance, the switch can be actuated without mechanical contact and without applying any pressure, thereby driving a DC electrical appliance or providing a control instruction to a controller (PLC) device. In this embodiment, the proximity switch is used to detect whether the float ball 20 is close, so as to judge the height difference of the liquid level and detect whether the platform segment 12 is horizontal. The sensors are all connected to the controller, and the controller is connected to the driving device of the platform segment 12.

[0062] Embodiment 2

[0063] The climbing frame 9 horizontal elevation difference control method and horizontal detector in this embodiment can be improved as follows compared with the technical solution of Embodiment 1:

[0064] V. Adjustment of the inclined state of opposite sides:

[0065] Start and position the lifting mechanisms 10 at the two ends of the side where the lowest point is located, and temporarily stop the other lifting mechanisms 10. The loads at the points between the two ends and the first adjacent points decrease as the height increases. When the unloaded value is reached or the lifting mechanisms 10 at the two ends reach the load limit value, the lifting mechanisms 10 at the two ends stop.

[0066] Start and lift the lifting mechanisms 10 at the points between the two ends and the first adjacent points. The load at the second adjacent point of the first adjacent point decreases. When the unloaded value is reached or the lifting mechanisms 10 at the points between the two ends and the adjacent points reach the load limit value, the lifting mechanisms 10 at the points between the two ends and the adjacent points stop, and the lifting mechanism 10 at the second adjacent point starts and lifts. Repeat this step until the load at the highest point reaches the unloaded value.

[0067] If the climbing frame 9 is in the inclined state of opposite sides, that is, the 5th point 5, the 6th point 6, and the 7th point 7 are relatively low, the horizontal detector transmits a high-level signal to the 5th point 5 and a low-level signal to the 1st point 1. The horizontal detector transmits a high-level signal to the 7th point 7 and a low-level signal to the 3rd point 3. The 5th point 5 and the 7th point 7 start to lift, and the other climbing frame hoists are temporarily stopped. When the 5th point 5 and the 7th point 7 start to lift, the loads at the adjacent 4th point 4, 6th point 6, and 8th point 8 decrease. When the load values of the 4th point 4, 6th point 6, and 8th point 8 drop to the set unloaded value, the 4th point 4, 6th point 6, and 8th point 8 start to lift. Until the 5th point 5 is level with the 1st point 1 and the 7th point 7 is level with the 3rd point 3, the initial position of the building 11 climbing frame 9 is leveled.

[0068] Embodiment 3

[0069] A platform segmented horizontal detection device based on a suspended movable pulley in this embodiment can be improved as follows compared with the technical solution of Embodiment 1:

[0070] The central position detection mechanism is a distance sensor. The distance between the distance sensor and the central position of the platform segment 12 is a fixed value. The distance between the distance sensor and the central position of the platform segment 12 is set in advance. After the movable pulley 14 moves, the distance sensor detects the distance from the movable pulley 14, transmits the distance signal to the controller and compares it with the preset distance, then it can be known whether the movable pulley 14 deviates from the central position, and it can be judged whether a single segment of the platform segment 12 is horizontal. The distance between the distance sensor and the central position of the platform segment 12 preset in advance is stored in the controller. The distance sensor and the movable pulley 14 are at the same height, so that the distance sensor can accurately measure the distance from the movable pulley 14. And according to the measured distance from the movable pulley 14, the rolling direction of the movable pulley 14 can be judged, and thus the inclination direction of the platform segment 12 can be judged.

[0071] Embodiment 4

[0072] A platform segment horizontal detection device based on a suspended movable pulley according to this embodiment can be improved as follows compared with the technical solution of Embodiment 3:

[0073] The central position detection mechanism is a distance sensor. The distance sensors are located on both sides of the movable pulley 14. The distance sensors are symmetrically arranged about the center of the platform segment 12. Distance sensors are arranged on both sides. There is no need to set the distance in advance. After measuring the distances from the two distance sensors to the movable pulley 14, the controller compares the two distances. If they are the same or the deviation is within 5%, the platform segment 12 is horizontal or approximately horizontal. Otherwise, the platform segment 12 is non-horizontal and needs to be adjusted.

[0074] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative work without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. The method for controlling the horizontal height difference of the climbing formwork, characterized in that, The steps include:

1. Divide the climbing formwork into several sections with the suspension points for installing the hoisting mechanism. Install a floating ball type horizontal detector at each suspension point, or install a movable pulley type horizontal detector between two suspension points. Set a floating ball type horizontal detector at the corresponding position below the points of the climbing formwork or install a hanging movable pulley type horizontal detector below the sections. Connect the hoisting mechanism and the horizontal detector to the controller and start the hoisting mechanism to lift the climbing formwork.

2. The floating ball type horizontal detector or the hanging movable pulley type horizontal detector detects the height difference of the points, generates a level signal and transmits it to the controller. The controller judges each point, sorts the points in ascending order of height, counts the high and low positions of all points, and judges whether the climbing formwork is in a diagonal tilt state or an opposite side tilt state.

3. Set the load limit value and no-load value of the hoisting mechanism. The load limit value is the maximum load of the hoisting mechanism. When the load exceeds the load limit value, the controller will control the hoisting mechanism to stop lifting. The no-load value is the minimum load of the hoisting mechanism. When the load is less than the no-load value, the controller will control the hoisting mechanism to stop lifting. Judge whether the climbing formwork is in a diagonal tilt state or an opposite side tilt state: If the lowest point detected by the horizontal detector is single, it is in a diagonal tilt state; if the lowest point detected by the horizontal detector is double, it is in an opposite side tilt state.

4. Adjustment of the diagonal tilt state: Start the hoisting mechanism at the lowest point and lift the lowest point, and temporarily stop the other hoisting mechanisms. According to the force analysis, the load of the first adjacent point of the lowest point decreases with the increase of height. When the load of the first adjacent point reaches the no-load value or the hoisting mechanism at the lowest point reaches the load limit value, the hoisting mechanism at the lowest point stops. Start the hoisting mechanism at the first adjacent point and lift it. The load of the second adjacent point on the other side of the first adjacent point decreases with the increase of height. When the load of the second adjacent point reaches the no-load value or the hoisting mechanism at the first adjacent point reaches the load limit value, the hoisting mechanism at the first adjacent point stops. Repeat this step until the load of the highest point reaches the no-load value.

5. Adjustment of the opposite side tilt state: Start the hoisting mechanisms at the points at both ends of the side where the lowest point is located and position the points, and temporarily stop the other hoisting mechanisms. The points between the two end points and the load of the first adjacent point decrease with the increase of height. When the load reaches the no-load value or the hoisting mechanisms at the two end points reach the load limit value, the hoisting mechanisms at the two end points stop. Start the hoisting mechanisms at the points between the two end points and the first adjacent point and lift them. The load of the second adjacent point of the first adjacent point decreases. When the load reaches the no-load value or the hoisting mechanisms at the points between the two end points and the adjacent points reach the load limit value, the hoisting mechanisms at the points between the two end points and the adjacent points stop. Start the hoisting mechanism at the second adjacent point and lift it. Repeat this step until the load of the highest point reaches the no-load value.

2. The climbing frame horizontal height difference control method according to claim 1, wherein A load detection sensor is provided in the hoisting mechanism.

3. The climbing frame horizontal height difference control method according to claim 1, characterized in that It also includes a free adjustment method:

1. When the climbing formwork is on the ground, lift and pre-tighten all the hoisting mechanisms. At this time, the climbing formwork is not suspended.

2. After the pre-tightening is completed, all the hoisting mechanisms rise by x cm, where x ranges from 1 to 10 cm, and then record the rising height and load value of each hoisting mechanism. III. For points at different heights, install a float - type level detector to control the lifting mechanism at the low - point position to rise until the float - type level detector stops alarming.

4. A platform sectional horizontal detector based on a suspended movable pulley, which is used for the climbing frame horizontal height difference control method described in claim 1, and is characterized in that, It includes a platform segment with at least one section. Symmetrically arranged cables are provided below a single section of the platform segment. Both ends of the cables are fixedly connected to symmetric ends of the platform segment. A movable pulley is rotatably connected to the cables. A suspended weight for counterweight is rotatably connected to the axis of the movable pulley. A central - position detection mechanism cooperating with the movable pulley is provided below a single section of the platform segment, and the central - position detection mechanism is connected to a controller.

5. The platform segmented horizontal detector based on a suspended movable pulley according to claim 4, wherein The central - position detection mechanism is a proximity switch. The proximity switch is located above the movable pulley and is symmetrically arranged about the center of the platform segment.

6. The platform segmented horizontal detector based on a hanging movable pulley according to claim 4, characterized in that The central - position detection mechanism is a distance sensor, and the distance between the distance sensor and the central position of the platform segment is a fixed value.

7. A platform segmented horizontal detector based on a suspended movable pulley according to claim 4, characterized in that, The central - position detection mechanism is a distance sensor. The distance sensors are located on both sides of the movable pulley and are symmetrically arranged about the center of the platform segment.

8. A floating ball type platform sectional horizontal detector, which is used for the climbing frame horizontal height difference control method described in claim 1, and is characterized in that It includes a plurality of height detectors evenly arranged on the platform segment. The height detector includes a vertical pipe filled with liquid. A float with a density less than that of the liquid is provided in the vertical pipe. A sensor for detecting the height of the float is provided at the top of the vertical pipe, and the vertical pipes of the plurality of height detectors are connected in communication.

9. The float-type platform segmented horizontal detector according to claim 8, wherein The sensor is a proximity switch.

10. A floating ball type platform segmented horizontal detector according to any one of claims 8 to 9, characterized in that, The sensors are all connected to a controller, and the controller is connected to the driving device of the platform segment.

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