Automatic lifting construction method for steel-structure outer wall pressed steel plate control ladder

Abstract

The invention relates to the technical field of construction ladders, and discloses an automatic lifting construction method for a steel structure outer wall pressed steel plate control ladder, which comprises a screw rod sleeve rod assembly, and the extension or contraction of the screw rod sleeve rod assembly enables a first folding mechanism to extend or contract, so that the overall extension or contraction of a ladder body is realized. When the ladder body is in the contraction state, the size of the ladder body is obviously reduced, the ladder body can be directly carried, the situation that a traditional construction ladder needs to be transported through hoisting equipment due to the large size is avoided, and therefore the transportation efficiency is improved, and the transportation cost is reduced; when the ladder body is in a stretching state, the height of the ladder body can be adjusted through step-by-step transmission ascending of the multiple stages of screw rod sleeve rods, and therefore the situation that the height of a traditional construction ladder needs to be adjusted in a welding or cutting mode can be avoided. The visual positioning clamping mechanism can clamp an I-shaped steel beam at the top of a steel structure, so that the I-shaped steel beam is fixedly connected with a steel structure building, and a traditional welding fixing mode is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of construction ladders, and particularly to an automated lifting construction method for a control ladder for pressed steel plates on a steel structure exterior wall. Background Art

[0002] The installation process of the pressed steel plates on the steel structure exterior wall is as follows: First, the materials required for construction need to be prepared, including pressed steel plates, corner steels, and keels, etc., and their specifications and models are checked to see if they meet the design requirements. Subsequently, the installation work is divided into two areas according to the working height: For the lower area of the steel structure exterior wall where direct construction is possible, construction workers can directly install the pressed steel plates; while for the upper area that requires working at heights, the installation of the pressed steel plates must be completed with the help of heightening equipment.

[0003] Among them, before construction in the upper area of the steel structure exterior wall, a hoisting device is needed to transport the construction ladder to the outside of the exterior wall of the steel structure building to be installed, and then the height of the construction ladder is adjusted adaptively through on-site welding or cutting processes to ensure its accurate correspondence with the position to be installed. After the height adjustment is completed, a welding process is used to fixedly connect the construction ladder to the steel structure building. After the construction ladder is fixed, construction workers need to reach the designated installation height through the fixed construction ladder and then complete the following installation steps in sequence according to the operation process: First, accurately position the corner steel according to the design requirements and firmly install it on the steel columns or steel beams of the steel structure building; then fix and connect the keels to the corner steel according to the designed spacing; finally, fix and connect the pressed steel plates to the keels, thus completing the installation process of this working surface.

[0004] After the installation of the pressed steel plates on the current working surface is completed, the construction ladder needs to be transferred according to the following process: First, construction workers remove the welded fixing points between the construction ladder and the steel structure, and then use a hoisting device to transport the construction ladder to the next construction area. At the new working position, the height adjustment and fixed installation of the construction ladder need to be carried out again. After the height adjustment and fixed installation of the construction ladder are completed, the installation operation process of the pressed steel plates can be repeated.

[0005] Among them, each time the working surface of the steel structure exterior wall is changed, the construction ladder must be re-adjusted in height and fixedly installed after being displaced. This repetitive operation makes the construction process cumbersome, thus significantly reducing the overall construction efficiency. In addition, the height adjustment and fixed installation of the construction ladder both require professional personnel to operate, thereby increasing the labor cost. Summary of the Invention

[0006] The present invention aims to provide an automated lifting construction method for a control ladder for pressed steel plates on a steel structure exterior wall, which can avoid the repeated height adjustment and fixed installation of the control ladder, thereby reducing construction steps, improving efficiency, and saving labor costs.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] 1) An automated lifting construction method for a control ladder of a pressed steel plate for a steel structure exterior wall, comprising the following steps:

[0009] Step 1: Determine the height of the steel structure exterior wall according to the construction requirements, and determine the position of the control ladder to be used based on the height of the steel structure exterior wall during the construction process;

[0010] Step 2: Carry and move the control ladder to the determined position where the control ladder is to be used, and place the control ladder on the outer surface of the steel structure exterior wall;

[0011] Step 3: Start the telescopic mechanism inside the control ladder, and drive the control ladder to extend along the height direction of the steel structure exterior wall by the telescopic mechanism, so that the crossbars of the control ladder move away from each other to form a step ladder for construction workers to climb;

[0012] Step 4: Collect the image information of the I-beam at the top of the steel structure exterior wall by the visual positioning clamping mechanism at the top of the control ladder, and send the image information to the microprocessor. Compare it with the standard image information in the microprocessor. When the image information matches the standard image information, turn off the telescopic mechanism inside the control ladder, and start the first clamping component and the second clamping component in the visual positioning clamping mechanism. The first clamping component and the second clamping group clamp and fix the I-beam at the top of the steel structure exterior wall, so that the control ladder is fixed on the outer surface of the steel structure exterior wall.

[0013] 2) The automated lifting construction method for a control ladder of a pressed steel plate for a steel structure exterior wall according to 1), wherein:

[0014] In Step 1, the control ladder includes a base, a microprocessor, and a ladder body with a folding function. The ladder body includes several parallel crossbars. Both ends of the crossbar are respectively provided with a first folding mechanism and a second folding mechanism that are internally hollow and foldable. The bottoms of the first folding mechanism and the second folding mechanism are fixedly connected to the upper surface of the base. The top of the ladder body is provided with a visual positioning clamping mechanism that can collect images and clamp the I-beam at the top of the steel structure. The tops of the first folding mechanism and the second folding mechanism are both fixedly connected to the visual positioning clamping mechanism.

[0015] 3) The automated lifting construction method for a control ladder of a pressed steel plate for a steel structure exterior wall according to 1), wherein:

[0016] In step three, the telescopic mechanism is located inside the first folding mechanism and is used to drive the first folding mechanism to extend or contract. The telescopic mechanism includes a screw rod sleeve rod assembly. The screw rod sleeve rod assembly includes several levels of coaxially nested screw rod sleeve rods. The outer surface of the screw rod sleeve rod is provided with external threads extending along its axial direction. A fixing ring is sleeved on the top of the outer surface of the screw rod sleeve rod. A nut sleeve ring is provided at the bottom of the inner surface of the screw rod sleeve rod. The inner side wall of the nut sleeve ring is provided with internal threads matching the external threads of the adjacent lower screw rod sleeve rod, and the nut sleeve ring can move axially along the adjacent lower screw rod sleeve rod. The screw rod sleeve rod at the top of the screw rod sleeve rod assembly passes through the first folding mechanism and is fixedly connected to the vision positioning clamping mechanism. The screw rod sleeve rod at the bottom of the screw rod sleeve rod assembly is connected to a driving motor for driving its rotation, and gradually pushes the screw rod sleeve rod to extend or contract. A placement groove is opened on the upper surface of the base. The driving motor is located in the placement groove. The driving motor and the vision positioning clamping mechanism are respectively electrically connected to the microprocessor.

[0017] In the technical solutions of the second and third claims of the present invention, the ladder body includes several horizontally arranged cross bars, providing a stable climbing tread for construction workers. First folding mechanisms and second folding mechanisms are respectively provided at both ends of each cross bar. When the height of the ladder body needs to be adjusted, the first folding mechanism and the second folding mechanism can extend or contract synchronously, driving the entire ladder body to extend or contract. By folding and contracting, the volume of the ladder body can be significantly reduced, enabling it to be directly carried when transportation is required, avoiding the situation where traditional construction ladders need to use hoisting equipment for transportation due to their large volume, thus improving the transportation efficiency during the construction process and reducing the additional costs caused by using hoisting equipment.

[0018] The inside of the first folding mechanism is hollowly arranged, enabling the telescopic mechanism to be completely placed in the internal cavity of the first folding mechanism. The telescopic mechanism is used to drive the first folding mechanism to extend or contract. The telescopic mechanism includes a driving motor and a screw rod sleeve rod assembly. The screw rod sleeve rod assembly includes several levels of coaxially nested screw rod sleeve rods. A nut sleeve ring with internal threads is provided at the bottom of each level of the screw rod sleeve rod and meshes with the external threads of the adjacent lower screw rod sleeve rod, so that when the current level of the screw rod sleeve rod rotates, it can drive the nut sleeve ring in the adjacent upper screw rod sleeve rod to move axially along the current level of the screw rod sleeve rod.

[0019] The driving motor is used to drive the screw rod sleeve at the bottom layer to rotate. Since the screw rod sleeve at the top of the screw rod sleeve assembly passes through the first folding mechanism and is fixedly connected to the visual positioning clamping mechanism, when the driving motor drives the screw rod sleeve at the bottom of the screw rod sleeve assembly to rotate, the external thread of the screw rod sleeve at the bottom of the screw rod sleeve assembly and the internal thread of the nut sleeve ring of the adjacent upper screw rod sleeve generate relative movement. The nut sleeve ring of the adjacent upper screw rod sleeve will spiral upward along the external thread of the screw rod sleeve at the bottom of the screw rod sleeve assembly, and the upward movement of the nut sleeve ring of the adjacent upper screw rod sleeve will drive the adjacent upper screw rod sleeve to move upward accordingly.

[0020] When the nut sleeve ring of the adjacent upper screw rod sleeve rises to contact the fixed ring of the screw rod sleeve at the bottom of the screw rod sleeve assembly, the nut sleeve ring stops rising. At this time, the screw rod sleeve at the bottom layer continues to rotate, thereby driving the adjacent upper screw rod sleeve to start rotating. The rotation of the adjacent upper screw rod sleeve will drive the nut sleeve ring of the more adjacent upper screw rod sleeve to move upward. Through this step-by-step transmission method, the power generated by the driving motor is sequentially transmitted to each level of the screw rod sleeve, and finally the first folding mechanism is driven to achieve an extension movement.

[0021] As the first folding mechanism extends, it drives the connected crossbars to rise synchronously, and then drives the second folding mechanism to extend accordingly. This setting method ensures that the first folding mechanism and the second folding mechanism extend in a coordinated manner, realizing the adjustment of the height of the ladder body, thereby avoiding the need to use welding or cutting methods to adjust the height of the traditional construction ladder, and thus significantly improving the construction efficiency.

[0022] When it is necessary to transfer the ladder body to another steel structure building for operation, start the driving motor to rotate in the reverse direction, driving the screw rod sleeve at the bottom of the screw rod sleeve assembly to rotate reversely. The external thread of the screw rod sleeve at the bottom of the screw rod sleeve assembly and the internal thread of the nut sleeve ring of the adjacent upper screw rod sleeve generate relative movement. The nut sleeve ring spirally descends along the external thread of the screw rod sleeve at the bottom of the screw rod sleeve assembly, and the downward movement of the nut sleeve ring drives the adjacent upper screw rod sleeve to move downward.

[0023] At the same time, since the nut sleeve rings of each level of the screw rod sleeve are in a fitting state with the fixed rings of the adjacent lower screw rod sleeves, when the screw rod sleeve at the bottom of the screw rod sleeve assembly rotates reversely, all the upper-level screw rod sleeves above it will rotate reversely, driving the nut sleeve rings of each level of the screw rod sleeve to spiral downward, thereby realizing the rapid contraction of the screw rod sleeve assembly. As the screw rod sleeve assembly contracts, the first folding mechanism is smoothly folded up, and then drives the second folding mechanism to contract synergistically through the crossbar, thus ensuring the high efficiency and operation convenience during the conversion of the construction scenario.

[0024] The visual positioning clamping mechanism is located at the top of the ladder and is used to clamp the I-beam at the top of the steel structure, thereby fixing it to the steel structure building. This avoids the use of traditional welding fixing methods and enables rapid installation and disassembly, thereby improving overall construction efficiency.

[0025] The drive motor and the visual positioning clamping mechanism are each electrically connected to a microprocessor, which is connected to a control panel. The microprocessor stores preset ascending and descending control programs. When the ladder reaches the working position outside the steel structure to be constructed, the operator selects and triggers the ascending control program in the microprocessor via the control panel. Upon receiving the instruction to activate the ascending control program, the microprocessor immediately sends a command to the drive motor, which drives the telescopic mechanism to ascend, thereby driving the ladder upward.

[0026] The visual positioning clamping mechanism can acquire the current image information in real time and transmit it to the microprocessor. The microprocessor stores a standard image of the I-beam at the top of the steel structure and sets a threshold for feature matching. When the microprocessor receives the real-time image, it compares its features with the standard image. When the image matching degree reaches the preset threshold, it is determined that the top of the ladder has reached the top of the steel structure, and the height of the ladder is now exactly the same as that of the steel structure. The microprocessor then commands the drive motor to stop, thereby ensuring that the ladder is in the correct position, and at the same time commands the visual positioning clamping mechanism to start clamping the I-beam at the top of the steel structure, thereby completing a secure connection between the ladder and the steel structure.

[0027] When the steel structure's exterior wall pressed steel plates are completed and the ladder needs to be moved, the operator uses the control panel to select and trigger the descent control program in the microprocessor. Upon receiving the command to initiate the descent control program, the microprocessor immediately instructs the visual positioning clamping mechanism to release the I-beam at the top of the steel structure, releasing the ladder from the steel structure. The microprocessor then instructs the drive motor to reverse direction, driving the telescopic mechanism to retract.

[0028] The coordinated collaboration of a microprocessor, drive motor, and visual positioning and clamping mechanism allows the ladder to automatically adjust its height to the height of the steel structure, ensuring efficient and precise adjustments. Furthermore, the visual positioning and clamping mechanism clamps and releases the I-beam at the top of the steel structure, enabling the ladder to be secured and removed from the structure. This further optimizes the construction process and significantly improves efficiency.

[0029] 4) The method for automatically raising and lowering a steel structure exterior wall pressed steel plate control ladder according to 2), wherein:

[0030] The first folding mechanism includes several levels of first sleeve rods corresponding to the cross bars one by one. The first sleeve rods are located at the ends of the cross bars. The axis of the first sleeve rod is perpendicular to the axis of the cross bar. The inside of the first sleeve rod is hollow, and the longitudinal section of the first sleeve rod is trapezoidal with the upper base wider than the lower base. The first sleeve rods at all levels form a telescopic folding structure through sliding nesting. The screw rod sleeve rod assembly is located in the first sleeve rod at the bottom of the first folding mechanism. The second folding mechanism includes several levels of second sleeve rods corresponding to the cross bars one by one. The second sleeve rods are located at the other ends of the cross bars. The axis of the second sleeve rod is perpendicular to the axis of the cross bar. The second sleeve rods at all levels form a telescopic folding structure through sliding nesting. The top surfaces of the top first sleeve rod and the top second sleeve rod are both fixedly connected to the visual positioning clamping mechanism. The bottom surfaces of the first sleeve rod at the bottom of the first folding mechanism and the second sleeve rod at the bottom of the second folding mechanism are both fixedly connected to the upper surface of the base.

[0031] In the present invention, the first sleeve rods at several levels form a telescopic folding structure through sliding nesting. The inside of the first sleeve rod is hollow, and the first sleeve rods at all levels can slide relative to each other. When the screw rod sleeve rod assembly in the first sleeve rod at the bottom layer extends, it can push the visual positioning clamping mechanism at the top of the ladder body to rise, thereby driving the first sleeve rod connected to the visual positioning clamping mechanism to rise.

[0032] As the top first sleeve rod continues to rise, since the longitudinal section of the first sleeve rods at all levels is trapezoidal with the upper base wider than the lower base, when the bottom edge of the inner side wall of the top first sleeve rod contacts the top edge of the outer side wall of the adjacent lower first sleeve rod, the contact surfaces of the two will completely fit and enter a relatively stationary state. In this state, as the top first sleeve rod continues to rise, the bottom edge of its inner side wall will apply an upward pulling force to the adjacent lower first sleeve rod through the contact surface, thereby pulling the adjacent lower first sleeve rod upward.

[0033] The first sleeve rods at all levels will successively pull the adjacent lower first sleeve rods upward during the rising process. At the same time, the rising of the first sleeve rod will drive the cross bar connected to it to rise. The rising of the cross bar will drive the second sleeve rod connected to the other end of the cross bar to rise, so that the whole ladder body can rise smoothly, thereby realizing the adjustment of the height of the ladder body, and avoiding the need to use welding or cutting methods to adjust the height of the traditional construction ladder, significantly improving the construction efficiency.

[0034] When the screw-rod assembly within the first set of rods on the bottom layer contracts, each level of the first set of rods loses its internal support and begins to descend under the force of gravity, sliding into the adjacent first set of rods below, ultimately achieving the nesting of all the first sets of rods. As the first set of rods descends, it also causes the crossbar to descend. The descent of the crossbar causes the second set of rods connected to its other end to descend, ultimately achieving the nesting of all the second sets of rods, thereby returning the ladder as a whole to its contracted state and reducing its volume, allowing it to be directly transported when needed. This avoids the need for lifting equipment to transport traditional construction ladders due to their large size, thereby improving transportation efficiency during the construction process and reducing the additional costs incurred by the use of lifting equipment.

[0035] 5) The method for automatically raising and lowering a steel structure exterior wall pressed steel plate control ladder according to 1), wherein:

[0036] In step four, the visual positioning clamping mechanism includes a bar-shaped clamping base, the tops of the first folding mechanism and the second folding mechanism are respectively fixedly connected to the bottom surface of the clamping base, a servo motor and a camera are provided on the upper surface of the clamping base, the output shaft of the servo motor is provided with a threaded screw parallel to the upper surface of the base, the threaded screw is provided with a first clamping assembly and a second clamping assembly that can move toward or away from each other, the camera is higher than the clamping assembly, and the servo motor and the camera are respectively electrically connected to the microprocessor.

[0037] In the present invention, the camera captures current image information in real time and transmits it to a microprocessor. The microprocessor stores a standard image of the I-beam at the top of the steel structure and sets a threshold for feature matching. Upon receiving the real-time image, the microprocessor compares its features with the standard image. This is conventional technology and will not be further described here. When the image matching degree reaches a preset threshold, it is determined that the top of the ladder has reached the top of the steel structure, and the height of the ladder is now completely consistent with the height of the steel structure.

[0038] The microprocessor then commands the drive motor to stop, ensuring the ladder is in the correct position. It also sends a clamping command to the servo motor. Once the servo motor starts, its output shaft begins to rotate, which in turn drives the screw. This rotation of the screw drives the first and second clamping assemblies toward each other. Through this movement, the first and second clamping assemblies securely grip the I-beam at the top of the steel structure, respectively, completing a secure connection between the ladder and the structure.

[0039] When the construction operation of the pressed steel plate for the steel structure exterior wall is completed and the ladder needs to be transferred, the operator selects and triggers the descent control program in the microprocessor through the control panel. After receiving the instruction to start the descent control program, the microprocessor immediately sends a release command to the servo motor. After the servo motor starts, its output shaft starts to rotate in the reverse direction, thereby driving the threaded lead screw to rotate in the reverse direction. The reverse rotation of the threaded lead screw will drive the first clamping assembly and the second clamping assembly to move away from each other. Through the movement away from each other of the first clamping mechanism and the second clamping mechanism, the first clamping assembly and the second clamping assembly will respectively move away from the I-beam at the top of the steel structure, thus releasing the fixation of the ladder to the steel structure.

[0040] 6) According to the automated lifting construction method for the control ladder of the pressed steel plate for the steel structure exterior wall described in 1), wherein:

[0041] In step four, the first clamping assembly includes a first threaded nut, the first threaded nut is sleeved on the threaded lead screw, a first slider is provided at the bottom of the first threaded nut, a first clamping block is provided on the outer side surface of the first threaded nut, and a first clamping rod parallel to the upper surface of the clamping base is provided on the side surface of the first clamping block;

[0042] The second clamping assembly includes a second threaded nut, the second threaded nut is sleeved on the threaded lead screw, the first threaded nut and the second threaded nut can move towards or away from each other along the threaded lead screw, a second slider is provided at the bottom of the second threaded nut, a second clamping block is provided on the outer side surface of the second threaded nut, a second clamping rod parallel to the upper surface of the clamping base is provided on the side surface of the second clamping block, the first clamping rod and the second clamping rod are arranged facing each other, a slideway is provided on the upper surface of the clamping base along its axial direction, and both the first slider and the second slider can slide along the slideway.

[0043] In the present invention, the first threaded nut and the second threaded nut are sleeved on the threaded lead screw. When the threaded lead screw rotates, due to the opposite helix directions of the first threaded nut and the second threaded nut, the two will move synchronously in a linear motion towards or away from each other on the threaded lead screw. The first clamping block connects the first threaded nut and the first clamping rod, transmitting the linear motion of the first threaded nut to the first clamping rod, causing the first clamping rod to move along the side close to or away from the I-beam, thereby applying a clamping force or releasing the clamping;

[0044] At the same time, the second clamping block connects the second threaded nut and the second clamping rod, causing the second clamping rod to move in a symmetric manner with the first clamping rod, clamping or releasing the other side of the I-beam synchronously with the first clamping rod, thereby ensuring a balanced distribution of the clamping forces on both sides and achieving a stable and precise clamping effect.

[0045] The upper surface of the clamping base is provided with a slideway along its axial direction. Both the first slider and the second slider can slide along the slideway, thereby restricting the movement trajectory of the sliders, ensuring that the first clamping rod and the second clamping rod move smoothly when moving towards or away from each other, avoiding jamming or deviation, and thus significantly improving the accuracy and stability of the clamping action.

[0046] 7) According to the automated lifting construction method for the steel structure exterior wall pressed steel plate control ladder described in 3), wherein:

[0047] The upper surface of the nut sleeve is provided with several protrusions, and the lower surface of the fixed ring is provided with several grooves corresponding to the protrusions. The protrusions can be embedded in the grooves on the lower surface of the fixed ring of the adjacent screw rod sleeve below.

[0048] In the present invention, when the nut sleeve rises to contact the fixed ring of the adjacent screw rod sleeve below, the upper surface of the nut sleeve is in close contact with the lower surface of the fixed ring of the adjacent screw rod sleeve below. At this time, the protrusions on the upper surface of the nut sleeve are embedded in the grooves on the lower surface of the fixed ring of the adjacent screw rod sleeve below, thereby ensuring that the positions of the nut sleeve and the fixed ring of the adjacent screw rod sleeve below are relatively fixed, effectively preventing the displacement or loosening of the nut sleeve, and at the same time significantly enhancing the stability of the overall structure and reducing the deviation caused by vibration or external force interference.

[0049] 8) According to the automated lifting construction method for the steel structure exterior wall pressed steel plate control ladder described in 3), wherein:

[0050] The output shaft of the driving motor is connected with a driving screw rod. The nut sleeve of the screw rod sleeve at the bottom of the screw rod sleeve assembly is threadedly connected with the threaded screw rod. The upper surface of the nut sleeve of the screw rod sleeve at the bottom of the screw rod sleeve assembly is provided with several protrusions. A fixed block is sleeved on the outer surface of the threaded screw rod near the top edge. The lower surface of the fixed block is provided with several fixed grooves corresponding to the protrusions. The protrusions can be embedded in the fixed grooves.

[0051] In the present invention, when the driving motor is started, the output shaft of the driving motor rotates, thereby driving the driving screw rod to rotate accordingly. The rotation of the driving screw rod drives the nut sleeve of the screw rod sleeve at the bottom of the screw rod sleeve assembly to move upward along the axial direction of the driving screw rod. When the nut sleeve moves upward to contact the fixed block, the upper surface of the nut sleeve is in close contact with the lower surface of the fixed block. At this time, the protrusions on the upper surface of the nut sleeve are embedded in the fixed grooves on the lower surface of the fixed block, thereby ensuring that the positions of the nut sleeve and the fixed block are relatively fixed, effectively preventing the displacement or loosening of the nut sleeve, and at the same time significantly enhancing the stability of the overall structure and reducing the deviation caused by vibration or external force interference.

[0052] 9) According to the automated lifting construction method for the steel structure exterior wall pressed steel plate control ladder described in 2), wherein:

[0053] The outer surface of the cross bar is provided with several roller assemblies that can roll along the side wall of the steel structure. Each roller assembly includes a roller, a rolling shaft is coaxially inserted into the roller, vertical rods are respectively arranged at both ends of the rolling shaft, and both ends of the vertical rods are fixedly connected to the cross bar.

[0054] In the present invention, during the ascending or descending process of the ladder body, the roller assemblies can roll along the side wall of the steel structure, thereby preventing the cross bar from shifting and twisting, and enhancing the stability of the ladder body during the lifting and lowering process. A rolling shaft is inserted into the roller, and the rolling shaft plays a supporting role for the roller to ensure that the roller can rotate stably and accurately. Vertical rods are respectively arranged at both ends of the rolling shaft, and both ends of the vertical rods are fixedly connected to the cross bar, forming a stable frame structure, thereby ensuring that the roller can remain stable when rolling.

[0055] Compared with the prior art, the present invention also has the following technical effects:

[0056] In the present invention, the stretching or contraction of the first folding mechanism is realized by the stretching or contraction of the screw rod sleeve rod assembly, so as to realize the stretching or contraction of the whole ladder body. When the ladder body is in the contracted state, the volume of the ladder body is significantly reduced, and the ladder body can be directly carried after contraction, avoiding the situation that traditional construction ladders need to use hoisting equipment for transportation due to their large volume, thereby improving the transportation efficiency and reducing the transportation cost; when the ladder body is in the stretched state, the height of the ladder body can be adjusted by the step-by-step transmission of several levels of screw rod sleeve rods. Compared with the prior art, the present invention can avoid the repeated height adjustment of the ladder body, thereby reducing construction steps, improving efficiency and saving labor costs. In addition, the visual positioning clamping mechanism can clamp the I-shaped steel beam at the top of the steel structure, so as to fixedly connect it with the steel structure building, thereby avoiding the use of traditional welding fixing methods, realizing rapid installation and disassembly, and improving the overall construction efficiency. Description of the Drawings

[0057] Figure 1 It is a flow chart of the automatic lifting construction method of the control ladder for pressing steel plates on the outer wall of the steel structure in the present invention.

[0058] Figure 2 It is a structural schematic diagram of the control ladder in the automatic lifting construction method of the control ladder for pressing steel plates on the outer wall of the steel structure in the present invention.

[0059] Figure 3 It is Figure 2 The enlarged view at A in

[0060] Figure 4 It is a structural schematic diagram of the visual positioning clamping mechanism in the automatic lifting construction method of the control ladder for pressing steel plates on the outer wall of the steel structure in the present invention.

[0061] Figure 5 It is Figure 4 The cross-sectional view at A-A in

[0062] Figure 6 This is a schematic structural diagram of the roller assembly in the automated lifting construction method for the pressed steel plate control ladder on the steel structure exterior wall of the present invention.

[0063] Figure 7 This is a cross-sectional view of the screw sleeve rod in the automated lifting construction method for the pressed steel plate control ladder on the steel structure exterior wall of the present invention. Specific embodiments

[0064] The following is a further detailed description through specific embodiments:

[0065] The reference numerals in the accompanying drawings of the specification include: base 1, cross bar 2, screw rod sleeve 3, fixed ring 4, nut sleeve ring 5, drive motor 6, placement groove 7, first sleeve rod 8, second sleeve rod 9, clamping base 10, servo motor 11, camera 12, threaded screw rod 13, first threaded nut 14, first slider 15, first clamping block 16, first clamping rod 17, second threaded nut 18, second slider 19, second clamping block 20, second clamping rod 21, slideway 22, protrusion 23, groove 24, drive screw rod 25, roller 26, rolling shaft 27, vertical rod 28, fixed block 29.

[0066] Example, see Figure 1 As shown, in this example, the automated lifting construction method for the pressed steel plate control ladder on the steel structure exterior wall includes the following steps:

[0067] Step 1: Determine the height of the steel structure exterior wall according to the construction requirements, and determine the position of the control ladder to be used based on the height of the steel structure exterior wall during the construction process;

[0068] Step 2: Carry and move the control ladder to the determined position where the control ladder is to be used, and place the control ladder on the outer surface of the steel structure exterior wall;

[0069] Step 3: Start the telescopic mechanism inside the control ladder, and drive the control ladder to extend along the height direction of the steel structure exterior wall by the telescopic mechanism, so that the cross bars 2 of the control ladder move away from each other to form a step ladder for construction workers to climb;

[0070] Step 4: Use the visual positioning and clamping mechanism at the top of the control ladder to collect the image information of the I-beam at the top of the steel structure exterior wall, and send the image information to the microprocessor. Compare it with the standard image information in the microprocessor. When the image information matches the standard image information, turn off the telescopic mechanism inside the control ladder, and start the first clamping component and the second clamping group in the visual positioning and clamping mechanism. The first clamping component and the second clamping group clamp and fix the I-beam at the top of the steel structure exterior wall, so that the control ladder is fixed on the outer surface of the steel structure exterior wall.

[0071] See Figure 2 、 Figure 3 AndFigure 7 As shown, in Step 1, the control ladder includes a base 1, a microprocessor, and a ladder body with a folding function. The ladder body includes several parallel crossbars 2. At both ends of the crossbar 2, there are respectively a first folding mechanism and a second folding mechanism that are internally hollow and foldable. The bottoms of the first folding mechanism and the second folding mechanism are both fixedly connected to the base 1. At the top of the ladder body, there is a visual positioning clamping mechanism that can collect images and clamp the I-beam at the top of the steel structure. The tops of the first folding mechanism and the second folding mechanism are both fixedly connected to the visual positioning clamping mechanism.

[0072] In Step 3, the telescopic mechanism is located in the first folding mechanism or the second folding mechanism, or both the first folding mechanism and the second folding mechanism, and is used to drive the first folding mechanism or the second folding mechanism, or both the first folding mechanism and the second folding mechanism to extend or contract. The telescopic mechanism includes a screw rod sleeve assembly. The screw rod sleeve assembly includes several levels of coaxially nested screw rod sleeves 3. The outer surface of the screw rod sleeve 3 is provided with external threads extending along its axial direction. At the top of the outer surface of the screw rod sleeve 3, there is a fixed ring 4 sleeved. At the bottom of the inner surface of the screw rod sleeve 3, there is a nut sleeve ring 5. The inner side wall of the nut sleeve ring 5 is provided with internal threads that match the external threads of the adjacent lower screw rod sleeve 3, and the nut sleeve ring 5 can move axially along the adjacent lower screw rod sleeve 3.

[0073] In addition, the screw rod sleeve 3 at the top of the screw rod sleeve assembly passes through the first folding mechanism and is fixedly connected to the visual positioning clamping mechanism. The screw rod sleeve 3 at the bottom of the screw rod sleeve assembly is connected to a drive motor 6 for driving its rotation, and gradually pushes the screw rod sleeve 3 to extend or contract. A placement groove 7 is opened on the upper surface of the base 1. The drive motor 6 is located in the placement groove 7. The drive motor 6 and the visual positioning clamping mechanism are respectively electrically connected to the microprocessor.

[0074] In this embodiment, the ladder body includes several parallel crossbars 2, providing a stable climbing tread for construction workers. At both ends of each crossbar 2, there are respectively a first folding mechanism and a second folding mechanism. When it is necessary to adjust the height of the ladder body, the first folding mechanism and the second folding mechanism can extend or contract synchronously, driving the entire ladder body to extend or contract. By folding and contracting, the volume of the ladder body can be significantly reduced, enabling it to be directly carried when transportation is required, avoiding the situation where traditional construction ladders need to use hoisting equipment for transportation due to their large volume, thus improving the transportation efficiency during the construction process and reducing the additional costs generated by using hoisting equipment.

[0075] The interior of the first folding mechanism is hollow, enabling the telescopic mechanism to be fully placed within the internal cavity of the first folding mechanism. The telescopic mechanism is used to drive the first folding mechanism to extend or contract. The telescopic mechanism includes a driving motor 6 and a screw rod sleeve assembly. The screw rod sleeve assembly includes several levels of coaxially nested screw rod sleeves 3. At the inner bottom of each level of screw rod sleeve 3, there is a nut sleeve ring 5 with internal threads, which meshes with the external threads of the adjacent lower screw rod sleeve 3. Thus, when the current level of screw rod sleeve 3 rotates, it can drive the nut sleeve ring 5 within the adjacent upper screw rod sleeve 3 to move along the axial direction of the current level of screw rod sleeve 3.

[0076] The driving motor 6 is used to drive the rotation of the bottom screw rod sleeve 3. Since the screw rod sleeve 3 at the top of the screw rod sleeve assembly passes through the first folding mechanism and is fixedly connected to the visual positioning clamping mechanism, when the driving motor 6 drives the rotation of the screw rod sleeve 3 at the bottom of the screw rod sleeve assembly, relative movement occurs between the external threads of the screw rod sleeve 3 at the bottom of the screw rod sleeve assembly and the internal threads of the nut sleeve ring 5 of the adjacent upper screw rod sleeve 3. The nut sleeve ring 5 of the adjacent upper screw rod sleeve 3 will spiral upward along the external threads of the screw rod sleeve 3 at the bottom of the screw rod sleeve assembly, and the upward movement of the nut sleeve ring 5 of the adjacent upper screw rod sleeve 3 will drive the adjacent upper screw rod sleeve 3 to move upward accordingly.

[0077] When the nut sleeve ring 5 of the adjacent upper screw rod sleeve rises to contact the fixed ring 4 of the screw rod sleeve 3 at the bottom of the screw rod sleeve assembly, the nut sleeve ring 5 stops rising. At this time, the bottom screw rod sleeve 3 continues to rotate, thereby driving the adjacent upper screw rod sleeve 3 to start rotating. The rotation of the adjacent upper screw rod sleeve 3 will drive the nut sleeve ring 5 of the adjacent upper screw rod sleeve above it to move upward. Through this step-by-step transmission method, the power generated by the driving motor 6 is sequentially transmitted to each level of screw rod sleeve 3, ultimately driving the first folding mechanism to achieve the extension movement.

[0078] As the first folding mechanism extends, it drives the synchronous upward movement of each cross bar 2 connected to it, and then drives the second folding mechanism to extend accordingly. This setting method ensures that the first folding mechanism and the second folding mechanism extend in a coordinated manner, realizing the adjustment of the height of the ladder body, thereby avoiding the need to use welding or cutting methods to adjust the height of traditional construction ladders, and significantly improving construction efficiency.

[0079] When it is necessary to transfer the ladder body to another steel structure building for operation, start the driving motor 6 to rotate in the reverse direction, driving the reverse rotation of the screw rod sleeve 3 at the bottom of the screw rod sleeve assembly. Relative movement occurs between the external threads of the screw rod sleeve 3 at the bottom of the screw rod sleeve assembly and the internal threads of the nut sleeve ring 5 of the adjacent upper screw rod sleeve 3. The nut sleeve ring 5 spirally descends along the external threads of the screw rod sleeve 3 at the bottom of the screw rod sleeve assembly, and the downward movement of the nut sleeve ring 5 drives the adjacent upper screw rod sleeve 3 to move downward.

[0080] At the same time, because the level nut collar 5 of each screw sleeve 3 is in contact with the fixing ring 4 of the adjacent screw sleeve 3 below, when the screw sleeve 3 at the bottom of the screw sleeve assembly rotates in the opposite direction, the screw sleeves 3 at all levels above it will also rotate in the opposite direction, driving the nut collar 5 of each level of the screw sleeve 3 to spirally descend, thereby achieving rapid contraction of the screw sleeve assembly. As the screw sleeve assembly contracts, the first folding mechanism is smoothly retracted, and then the second folding mechanism is driven to contract in coordination through the cross bar 2, thus ensuring high efficiency and convenient operation when switching between construction scenes.

[0081] The visual positioning clamping mechanism is located at the top of the ladder and is used to clamp the I-beam at the top of the steel structure, thereby fixing it to the steel structure building. This avoids the use of traditional welding fixing methods and enables rapid installation and disassembly, thereby improving overall construction efficiency.

[0082] The drive motor 6 and the visual positioning clamping mechanism are each electrically connected to a microprocessor, which is connected to a control panel. The microprocessor stores preset ascending and descending control programs. When the ladder reaches the working position outside the steel structure to be constructed, the operator selects and triggers the ascending control program in the microprocessor via the control panel. Upon receiving the instruction to activate the ascending control program, the microprocessor immediately sends a command to the drive motor 6, which drives the telescopic mechanism to ascend, thereby driving the ladder upward.

[0083] The visual positioning clamping mechanism captures the current image information in real time and transmits it to the microprocessor. The microprocessor stores a standard image of the I-beam at the top of the steel structure and sets a threshold for feature matching. When the microprocessor receives the real-time image, it compares its features with the standard image.

[0084] When the image matching reaches a preset threshold, the ladder is determined to have reached the top of the steel structure, and the ladder's height is now perfectly aligned with the steel structure. The microprocessor then stops the drive motor 6, ensuring the ladder is positioned accurately. It also instructs the visual positioning clamping mechanism to activate the I-beam at the top of the steel structure, securing the ladder to the steel structure.

[0085] When the steel structure's exterior wall pressing work is complete and the ladder needs to be moved, the operator uses the control panel to select and trigger the descent control program in the microprocessor. Upon receiving the instruction to initiate the descent control program, the microprocessor immediately instructs the visual positioning clamping mechanism to release the I-beam at the top of the steel structure, releasing the ladder from the steel structure. It then instructs the drive motor 6 to rotate in the reverse direction, thereby retracting the telescopic mechanism.

[0086] With the coordinated cooperation of the microprocessor, the drive motor 6, and the vision positioning clamping mechanism, the ladder body can automatically adjust its height according to the height of the steel structure building, ensuring the efficiency and precision of the adjustment process. In addition, the vision positioning clamping mechanism clamps and releases the I-beam at the top of the steel structure, thereby realizing the fixing and disassembling functions of the ladder body and the steel structure, further optimizing the construction process and greatly improving the construction efficiency.

[0087] The first folding mechanism includes several first sleeve rods 8 corresponding to the cross bars 2 one by one. The first sleeve rods 8 are located at the ends of the cross bars 2. The axis of the first sleeve rods 8 is perpendicular to the axis of the cross bars 2. The inside of the first sleeve rods 8 is hollow, and the longitudinal section of the first sleeve rods 8 is an inverted trapezoid. The first sleeve rods 8 at all levels form a telescopic folding structure through sliding nesting, and the screw rod sleeve rod assembly is located in the first sleeve rod 8 at the bottom of the first folding mechanism.

[0088] Secondly, the second folding mechanism includes several second sleeve rods 9 corresponding to the cross bars 2 one by one. The second sleeve rods 9 are located at the other ends of the cross bars 2. The axis of the second sleeve rods 9 is perpendicular to the axis of the cross bars 2. The second sleeve rods 9 at all levels form a telescopic folding structure through sliding nesting. The top surfaces of the first sleeve rod 8 at the top and the second sleeve rod 9 at the top are both fixedly connected to the vision positioning clamping mechanism. The bottom surfaces of the first sleeve rod 8 at the bottom of the first folding mechanism and the second sleeve rod 9 at the bottom of the second folding mechanism are both fixedly connected to the upper surface of the base 1.

[0089] In this embodiment, several first sleeve rods 8 form a telescopic folding structure through sliding nesting. The inside of the first sleeve rods 8 is hollow, and the first sleeve rods 8 at all levels can slide relative to each other. When the screw rod sleeve rod assembly in the first sleeve rod 8 at the bottom layer extends, it can push the vision positioning clamping mechanism at the top of the ladder body to rise, thereby driving the first sleeve rod 8 connected to the vision positioning clamping mechanism to rise.

[0090] The first sleeve rod 8 at the top continues to rise. Since the longitudinal sections of the first sleeve rods 8 at all levels are inverted trapezoids with wider upper parts and narrower lower parts, when the bottom edge of the inner side wall of the first sleeve rod 8 at the top contacts the top edge of the outer side wall of the adjacent first sleeve rod 8 below, the contact surfaces of the two will completely fit and enter a relatively static state. In this state, as the first sleeve rod 8 at the top continues to rise, the bottom edge of its inner side wall will apply an upward pulling force to the adjacent first sleeve rod 8 below through the contact surface, thereby pulling the adjacent first sleeve rod 8 below to move upward.

[0091] During the ascending process of the first set of rods 8 at all levels, the adjacent lower first set of rods 8 will be successively pulled upward. At the same time, the ascending of the first set of rods 8 will drive the crossbar 2 connected thereto to rise accordingly. The rising of the crossbar 2 will drive the second set of rods 9 connected to the other end thereof to rise, so that the overall ladder can rise smoothly, thereby realizing the adjustment of the height of the ladder, avoiding the need to use welding or cutting methods to adjust the height of the traditional construction ladder, and significantly improving the construction efficiency.

[0092] When the screw rod sleeve assembly in the first set of rods 8 at the bottom layer contracts, the first set of rods 8 at all levels lose the internal supporting force, start to descend under the action of gravity, and slide into the adjacent lower first set of rods 8, and finally all the first set of rods 8 are nested with each other.

[0093] When the first set of rods 8 descends, it will drive the crossbar 2 to descend accordingly. The descending of the crossbar 2 will drive the second set of rods 9 connected to the other end thereof to descend, and finally all the second set of rods 9 are nested with each other, so that the overall ladder returns to the contracted state, reducing the volume of the ladder, enabling it to be directly carried when transportation is needed, avoiding the situation that the traditional construction ladder needs to use lifting equipment for transportation due to its large volume, thereby improving the transportation efficiency during the construction process and reducing the additional costs generated by using lifting equipment.

[0094] See Figure 4 and Figure 5 As shown, in step four, the visual positioning clamping mechanism includes a strip-shaped clamping base 10. The tops of the first folding mechanism and the second folding mechanism are respectively fixedly connected to the bottom surface of the clamping base 10. A servo motor ۱۱ and a camera ۱۲ are provided on the upper surface of the clamping base 10. The output shaft of the servo motor ۱۱ is provided with a threaded screw rod ۱۳ parallel to the upper surface of the base 1. The threaded screw rod ۱۳ is provided with a first clamping assembly and a second clamping assembly that can move towards each other or away from each other. The camera ۱۲ is higher than the clamping assembly. The servo motor ۱۱ and the camera ۱۲ are respectively electrically connected to the microprocessor.

[0095] In this embodiment, the camera ۱۲ can acquire the current image information in real time and transmit it to the microprocessor. The standard image of the I-beam at the top of the steel structure is stored inside the microprocessor, and the threshold of feature matching is set. When the microprocessor receives the real-time image, it will perform feature comparison with the standard image, which is the prior art and will not be elaborated here. When the matching degree of the image reaches the preset threshold, it is determined that the top of the ladder has reached the top of the steel structure, and at this time, the height of the ladder is exactly the same as the height of the steel structure.

[0096] Subsequently, the microprocessor commands the motor 6 to stop working, thus ensuring that the ladder body is in the accurate position. Meanwhile, a clamping command is sent to the servo motor 11. After the servo motor 11 is started, its output shaft begins to rotate, and then drives the threaded lead screw 13 to rotate accordingly. The rotation of the threaded lead screw 13 drives the first clamping assembly and the second clamping assembly to move towards each other. Through the movement of the first clamping mechanism and the second clamping mechanism towards each other, the first clamping assembly and the second clamping assembly can firmly clamp the two sides of the I-beam at the top of the steel structure respectively, thus completing the stable connection between the ladder body and the steel structure.

[0097] When the construction operation of pressing the steel plates on the outer wall of the steel structure is completed and the ladder body needs to be transferred, the operator selects and triggers the descent control program in the microprocessor through the control panel. After the microprocessor receives the instruction to start the descent control program, it immediately sends a release command to the servo motor 11. After the servo motor 11 is started, its output shaft begins to rotate in the reverse direction, and then drives the threaded lead screw 13 to rotate in the reverse direction accordingly.

[0098] The reverse rotation of the threaded lead screw 13 drives the first clamping assembly and the second clamping assembly to move away from each other. Through the movement of the first clamping mechanism and the second clamping mechanism away from each other, the first clamping assembly and the second clamping assembly will respectively move away from the I-beam at the top of the steel structure, thus releasing the fixation between the ladder body and the steel structure.

[0099] In step four, the first clamping assembly includes a first threaded nut 14. The first threaded nut 14 is sleeved on the threaded lead screw 13. A first sliding block 15 is provided at the bottom of the first threaded nut 14. A first clamping block 16 is provided on the outer side surface of the first threaded nut 14. A first clamping rod 17 parallel to the upper surface of the clamping base 10 is provided on the side surface of the first clamping block 16.

[0100] Secondly, the second clamping assembly includes a second threaded nut 18. The second threaded nut 18 is sleeved on the threaded lead screw 13. The first threaded nut 14 and the second threaded nut 18 can move towards or away from each other along the threaded lead screw 13. A second sliding block 19 is provided at the bottom of the second threaded nut 18. A second clamping block 20 is provided on the outer side surface of the second threaded nut 18. A second clamping rod 21 parallel to the upper surface of the clamping base 10 is provided on the side surface of the second clamping block 20. The first clamping rod 17 and the second clamping rod 21 are arranged towards each other. A slideway 22 is provided on the upper surface of the clamping base 10 along its axial direction. Both the first sliding block 15 and the second sliding block 19 can slide along the slideway 22.

[0101] In this embodiment, the first threaded nut 14 and the second threaded nut 18 are sleeved on the threaded lead screw 13. When the threaded lead screw 13 rotates, due to the opposite helix directions of the first threaded nut 14 and the second threaded nut 18, the two will move linearly towards or away from each other synchronously on the threaded lead screw 13. The first clamping block 16 connects the first threaded nut 14 and the first clamping rod 17, transmitting the linear motion of the first threaded nut 14 to the first clamping rod 17, causing the first clamping rod 17 to move along the side close to or away from the I-beam, thereby applying a clamping force or releasing the clamping;

[0102] Meanwhile, the second clamping block 20 connects the second threaded nut 18 and the second clamping rod 21, causing the second clamping rod 21 to move in a symmetrical manner with the first clamping rod 17, clamping or releasing the other side of the I-beam synchronously with the first clamping rod 17, thereby ensuring an even distribution of the clamping forces on both sides and achieving a stable and precise clamping effect.

[0103] A slideway 22 is provided along the axial direction on the upper surface of the clamping base 10. Both the first slider 15 and the second slider 19 can slide along the slideway 22, thereby restricting the movement trajectories of the sliders, ensuring that the first clamping rod 17 and the second clamping rod 21 move smoothly when moving towards or away from each other, avoiding jamming or deviation, and thus significantly improving the accuracy and stability of the clamping action.

[0104] Several protrusions 23 are provided on the upper surface of the nut collar 5. Several grooves 24 corresponding to the protrusions 23 are provided on the lower surface of the fixed ring 4. The protrusions 23 can be embedded in the grooves 24 on the lower surface of the fixed ring 4 of the adjacent lower lead screw sleeve 3. In this embodiment, when the nut collar 5 rises to contact the fixed ring 4 of the adjacent lower lead screw sleeve 3, the upper surface of the nut collar 5 closely fits with the lower surface of the fixed ring 4 of the adjacent lower lead screw sleeve 3. At this time, the protrusions 23 on the upper surface of the nut collar 5 are embedded in the grooves 24 on the lower surface of the fixed ring 4 of the adjacent lower lead screw sleeve 3, thereby ensuring the relative fixation of the positions of the nut collar 5 and the fixed ring 4 of the adjacent lower lead screw sleeve 3, effectively preventing the displacement or loosening of the nut collar 5, and at the same time significantly enhancing the stability of the overall structure and reducing the deviation caused by vibration or external interference.

[0105] The output shaft of the driving motor 6 is connected with a driving lead screw 25. The nut collar 5 of the lead screw sleeve 3 at the bottom of the lead screw sleeve assembly is threadedly connected with the threaded lead screw 13. Several protrusions 23 are provided on the upper surface of the nut collar 5 of the lead screw sleeve 3 at the bottom of the lead screw sleeve assembly. A fixing block 29 is sleeved on the outer surface of the threaded lead screw 13 near the top edge. Several fixing grooves 24 corresponding to the protrusions 23 are provided on the lower surface of the fixing block 29. The protrusions 23 can be embedded in the fixing grooves 24.

[0106] In this embodiment, the driving motor 6 is started, and the output shaft of the driving motor 6 rotates to drive the driving lead screw 25 to rotate accordingly. The rotation of the driving lead screw 25 drives the nut collar 5 of the lead screw sleeve rod assembly located at the bottom of the lead screw sleeve rod 3 to move upward along the axis of the driving lead screw 25. When the nut collar 5 moves upward to contact the fixed block 29, the upper surface of the nut collar 5 is in close contact with the lower surface of the fixed block 29. At this time, the protrusion 23 on the upper surface of the nut collar 5 is embedded in the fixed groove 24 on the lower surface of the fixed block 29, thereby ensuring that the position of the nut collar 5 and the fixed block 29 is relatively fixed, effectively preventing the displacement or loosening of the nut collar 5, and at the same time significantly enhancing the stability of the overall structure and reducing the offset caused by vibration or external interference.

[0107] See Figure 6 As shown, several roller assemblies that can roll along the side wall of the steel structure are provided on the outer surface of the cross bar 2. The roller assembly includes rollers 26, and a rolling shaft 27 is coaxially penetrated inside the rollers 26. Vertical rods 28 are respectively provided at both ends of the rolling shaft 27, and both ends of the vertical rods 28 are fixedly connected to the cross bar 2.

[0108] In this embodiment, during the ascending or descending process of the ladder body, the roller assembly can roll along the side wall of the steel structure, thereby preventing the cross bar 2 from shifting and twisting, and enhancing the stability of the ascending and descending process of the ladder body. A rolling shaft 27 is penetrated inside the rollers 26, and the rolling shaft 27 plays a supporting role for the rollers 26 to ensure that the rollers 26 can rotate stably and accurately. Vertical rods 28 are respectively provided at both ends of the rolling shaft 27, and both ends of the vertical rods 28 are fixedly connected to the cross bar 2, forming a stable frame structure, thereby ensuring that the rollers 26 can remain stable when rolling.

[0109] In this embodiment, the first folding mechanism is extended or contracted by the extension or contraction of the lead screw sleeve rod assembly, thereby realizing the extension or contraction of the entire ladder body. When the ladder body is in the contracted state, the volume of the ladder body is significantly reduced. After the ladder body is contracted, it can be directly carried, avoiding the situation that traditional construction ladders need to use hoisting equipment for transportation due to their large volume, thereby improving the transportation efficiency and reducing the transportation cost; when the ladder body is in the extended state, the height of the ladder body can be adjusted by the step-by-step transmission of several lead screw sleeve rods 3. Compared with the prior art, this embodiment can avoid the repeated height adjustment of the ladder body, thereby reducing the construction steps, improving the efficiency and saving the labor cost. In addition, the visual positioning clamping mechanism can clamp the I-beam at the top of the steel structure, thereby fixedly connecting it to the steel structure building, and further avoiding the use of traditional welding fixing methods, enabling rapid installation and disassembly, and improving the overall construction efficiency.

[0110] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solution are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. An automated lifting construction method for a control ladder of a pressed steel plate for a steel structure exterior wall, characterized in that, The steps include the following: Step 1: Determine the height of the steel structure exterior wall according to the construction requirements, and determine the position for using the control ladder based on the height of the steel structure exterior wall during the construction process; Step 2: Carry and move the control ladder to the determined position for using the control ladder, and place the control ladder on the outer surface of the steel structure exterior wall; Step 3: Start the telescopic mechanism inside the control ladder, and drive the control ladder to extend along the height direction of the steel structure exterior wall with the telescopic mechanism, so that the crossbars of the control ladder move away from each other to form a ladder for construction workers to climb; Step 4: Collect the image information of the I-shaped steel beam at the top of the steel structure exterior wall with the visual positioning clamping mechanism at the top of the control ladder, and send the image information into the microprocessor. Compare it with the standard image information in the microprocessor. When the image information matches the standard image information, turn off the telescopic mechanism inside the control ladder, and start the first clamping component and the second clamping component in the visual positioning clamping mechanism. The first clamping component and the second clamping group clamp and fix the I-shaped steel beam at the top of the steel structure exterior wall, so that the control ladder is fixed on the outer surface of the steel structure exterior wall.

2. The automated lifting construction method for the pressed steel plate control ladder of the steel structure exterior wall according to claim 1, characterized in that: In Step 1, the control ladder includes a base, a microprocessor, and a ladder body with a folding function. The ladder body includes several parallel crossbars. Both ends of the crossbar are respectively provided with a first folding mechanism and a second folding mechanism that are internally hollow and foldable. The bottoms of the first folding mechanism and the second folding mechanism are fixedly connected to the upper surface of the base. The top of the ladder body is provided with a visual positioning clamping mechanism that can collect images and clamp the I-shaped steel beam at the top of the steel structure. The tops of the first folding mechanism and the second folding mechanism are both fixedly connected to the visual positioning clamping mechanism.

3. The automated lifting construction method for the pressed steel plate control ladder of the steel structure exterior wall according to claim 1, characterized in that: In Step 3, the telescopic mechanism is located inside the first folding mechanism and is used to drive the first folding mechanism to extend or contract. The telescopic mechanism includes a screw rod sleeve rod assembly. The screw rod sleeve rod assembly includes several levels of coaxially nested and hollow screw rod sleeve rods. The outer surface of the screw rod sleeve rod is provided with an external thread extending along its axis. A fixed ring is sleeved on the top of the outer surface of the screw rod sleeve rod. A nut sleeve ring is provided at the bottom of the inner surface of the screw rod sleeve rod. The inner side wall of the nut sleeve ring is provided with an internal thread that matches the external thread of the adjacent screw rod sleeve rod below, and the nut sleeve ring can move axially along the adjacent screw rod sleeve rod below. The screw rod sleeve rod at the top of the screw rod sleeve rod assembly passes through the first folding mechanism and is fixedly connected to the visual positioning clamping mechanism. The screw rod sleeve rod at the bottom of the screw rod sleeve rod assembly is connected with a drive motor for driving its rotation, and gradually pushes the screw rod sleeve rod to extend or contract. A placement groove is opened on the upper surface of the base. The drive motor is located in the placement groove. The drive motor and the visual positioning clamping mechanism are respectively electrically connected to the microprocessor.

4. The automated lifting construction method for the pressed steel plate control ladder of the steel structure exterior wall according to claim 2, characterized in that: The first folding mechanism includes several sets of first sleeve rods corresponding to the cross bars one by one. The first sleeve rods are located at the ends of the cross bars, and the axis of the first sleeve rods is perpendicular to the axis of the cross bars. The inside of the first sleeve rods is hollow, and the longitudinal section of the first sleeve rods is trapezoidal in an inverted shape. The first sleeve rods at all levels form a telescopic folding structure through sliding nesting. The screw rod sleeve rod assembly is located in the first sleeve rod at the bottom of the first folding mechanism. The second folding mechanism includes several sets of second sleeve rods corresponding to the cross bars one by one. The second sleeve rods are located at the other ends of the cross bars, and the axis of the second sleeve rods is perpendicular to the axis of the cross bars. The second sleeve rods at all levels form a telescopic folding structure through sliding nesting. The top surfaces of the first sleeve rod at the top and the second sleeve rod at the top are both fixedly connected to the visual positioning clamping mechanism. The bottom surfaces of the first sleeve rod at the bottom of the first folding mechanism and the second sleeve rod at the bottom of the second folding mechanism are both fixedly connected to the upper surface of the base.

5. The automated lifting construction method for the pressed steel plate control ladder of the steel structure exterior wall according to claim 1, characterized in that: In step four, the visual positioning clamping mechanism includes a strip-shaped clamping base. The tops of the first folding mechanism and the second folding mechanism are respectively fixedly connected to the bottom surface of the clamping base. A servo motor and a camera are provided on the upper surface of the clamping base. The output shaft of the servo motor is provided with a threaded screw rod parallel to the upper surface of the base. A first clamping component and a second clamping component that can move towards each other or away from each other are provided on the threaded screw rod. The camera is higher than the clamping components. The servo motor and the camera are respectively electrically connected to the microprocessor.

6. The automated lifting construction method for the pressed steel plate control ladder of the steel structure exterior wall according to claim 1, characterized in that: In step four, the first clamping component includes a first threaded nut. The first threaded nut is sleeved on the threaded screw rod. A first slider is provided at the bottom of the first threaded nut. A first clamping block is provided on the outer side surface of the first threaded nut. A first clamping rod parallel to the upper surface of the clamping base is provided on the side surface of the first clamping block. The second clamping component includes a second threaded nut. The second threaded nut is sleeved on the threaded screw rod. The first threaded nut and the second threaded nut can move towards each other or away from each other along the threaded screw rod. A second slider is provided at the bottom of the second threaded nut. A second clamping block is provided on the outer side surface of the second threaded nut. A second clamping rod parallel to the upper surface of the clamping base is provided on the side surface of the second clamping block. The first clamping rod and the second clamping rod are arranged towards each other. A slideway is provided on the upper surface of the clamping base along its axial direction. The first slider and the second slider can both slide along the slideway.

7. The automated lifting construction method for the control ladder of the pressed steel plate for the steel structure exterior wall according to claim 3, wherein: The upper surface of the nut sleeve ring is provided with several protrusions. The lower surface of the fixed ring is provided with several grooves corresponding to the protrusions. The protrusions can be embedded into the grooves on the lower surface of the fixed ring of the adjacent screw rod sleeve below.

8. The automated lifting construction method for the pressed steel plate control ladder of the steel structure exterior wall according to claim 3, characterized in that: The output shaft of the driving motor is connected with a driving screw rod. The nut sleeve ring of the screw rod sleeve at the bottom of the screw rod sleeve rod assembly is threadedly connected with the threaded screw rod. The upper surface of the nut sleeve ring of the screw rod sleeve at the bottom of the screw rod sleeve rod assembly is provided with several protrusions. A fixed block is sleeved on the outer surface of the threaded screw rod near the top edge. The lower surface of the fixed block is provided with several fixed grooves corresponding to the protrusions. The protrusions can be embedded into the fixed grooves.

9. The automated lifting construction method for the pressed steel plate control ladder of the steel structure exterior wall according to claim 2, characterized in that: The outer surface of the cross bar is provided with several roller assemblies that can roll along the side wall of the steel structure. Each roller assembly includes a roller, a rolling shaft is coaxially inserted into the roller, vertical rods are respectively arranged at both ends of the rolling shaft, and both ends of each vertical rod are fixedly connected to the cross bar.

Images