Large-span Scaffold Combined Anti-overturning Device

Abstract

The present invention discloses a large-span scaffolding combined anti-overturning device, specifically relating to the technical field of scaffolding, which includes a counterweight support beam, a lower scaffolding, a combined plate, and a transverse precise anti-overturning mechanism; the transverse precise anti-overturning mechanism includes a sliding frame, a bidirectional screw, a reduction motor, two threaded sleeve blocks, a transverse protection plate, a transverse pulling plate, and a torque force sensor; it also includes a longitudinal precise anti-overturning mechanism and a multi-directional overturning detection component. The present invention has the advantages of timely and precisely supporting and correcting the upper scaffolding in the precise direction through the transverse precise anti-overturning mechanism, being able to quickly support and correct the upper scaffolding in the precise direction, and greatly improving the anti-overturning effect of the large-span scaffolding, thereby solving the problems of a large number of overturning directions, being difficult to quickly and precisely support and correct the large-span scaffolding, being difficult to precisely perform anti-overturning operations, and having a poor anti-overturning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of scaffolding, and more specifically, to a combined anti-overturning device for large-span scaffolding. Background Art

[0002] The combined anti-overturning device for large-span scaffolding plays an important role in building construction. Due to its large span and high height, large-span scaffolding is easily affected by various factors such as wind force and load, and there is a risk of tilting or collapsing. The combined anti-overturning device forms an integral structure by connecting multiple scaffolding parts, which can effectively improve the overall stability of the scaffolding and reduce the possibility of tilting or collapsing caused by external factors. Secondly, by installing the combined anti-overturning device, the tilting condition of the scaffolding can be detected and corrected in time, preventing the occurrence of overturning accidents. This can not only protect the lives of construction workers, but also reduce the economic losses and construction period delays caused by accidents.

[0003] In the existing publicly available technical literature, the patent with the Chinese patent publication number CN202324579U discloses a combined attached lifting scaffolding. This technology can effectively prevent the scaffolding from overturning inward and outward through the upper guide rail and anti-tilting device on the main frame. When the scaffolding accidentally falls, the swing-arm anti-falling device will act and can effectively prevent the scaffolding from freely falling downward in time. After the scaffolding is lifted and in place, the scaffolding can be attached and fixed to the building wall or beam at any position by adjusting the tie rod and the stepless adjustable load-bearing device. Using this combined attached lifting scaffolding has the characteristics of smooth lifting, safety and reliability, low cost, and high work efficiency. However, this technology still has the following defects.

[0004] During the combined use of large-span scaffolding, due to its large span and high height, large-span scaffolding is easily affected by various factors such as wind force and load and is extremely prone to overturning problems. When overturning, there are transverse and longitudinal directions, so there are many overturning directions. It is difficult to quickly and accurately support and correct the large-span scaffolding according to the overturning direction in a timely manner, and it is difficult to accurately perform anti-overturning operations, resulting in a poor anti-overturning effect. Therefore, a combined anti-overturning device for large-span scaffolding is provided. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: A combined anti-overturning device for large-span scaffolding, including a counterweight support beam. Both sides of the counterweight support beam are provided with lower scaffolding. The top end of the lower scaffolding is fixedly connected with a combined plate, and the top end of the combined plate is fixedly connected with an upper scaffolding. The bottom end of the inner wall of the counterweight support beam is provided with a transverse precise anti-overturning mechanism; the transverse precise anti-overturning mechanism includes a sliding frame fixedly arranged at the bottom end of the inner wall of the counterweight support beam. A bidirectional screw is rotatably connected to the inner wall of the sliding frame, and a reduction motor is fixedly installed on one side of the inner wall of the sliding frame, and the reduction motor is used to drive the bidirectional screw to rotate.

[0006] Two threaded sleeve blocks are threadedly connected to the outer wall of the bidirectional screw, and the threads on the outer wall of the bidirectional screw are opposite and symmetrically arranged; a transverse protection plate is fixedly connected to the top end of each threaded sleeve block, a transverse pulling plate is fixedly installed at the top end of the transverse protection plate, and a torque force sensor is fixedly installed at one end of the bidirectional screw; a longitudinal precise anti-overturning mechanism is arranged above the sliding frame; a multi-directional overturning detection component is arranged on the upper surface of the counterweight support beam.

[0007] Preferably, the output end of the reduction motor is fixedly connected to the bidirectional screw, and the outer walls of the two threaded sleeve blocks and the inner wall of the sliding frame are all smooth surfaces. There is a gap between the transverse pulling plate and the lower scaffolding. A support block is installed on one side of the outer wall of the torque force sensor, and both the sliding frame and the torque force sensor are fixedly connected to the support block. The torque force sensor is divided into a housing and a sensing end; the sensing end of the torque force sensor is rotatably connected to the sliding frame. A controller is fixedly installed on one side of the counterweight support beam, and an installation base plate is fixedly connected to the bottom end of each lower scaffolding. A large-span plank is installed at the top end of the upper scaffolding, and both upper scaffolding are fixedly connected to the large-span plank; two inclined frames are arranged above the counterweight support beam, and both inclined frames are fixedly connected to the large-span plank.

[0008] When the present technology is in use, the reduction motor drives the bidirectional screw to rotate. The bidirectional screw drives the two threaded sleeve blocks to approach each other under the action of the thread transmission force. The transverse protection plate is driven to move to the right by the threaded sleeve block, and the other transverse pulling plate moves to the left. In this way, the two transverse pulling plates can respectively support and correct the transverse sides of the two lower scaffolds. When the torque force value sensed by the torque force sensor is the same as the torque force value set by the controller, the reduction motor is turned off by the controller. This enables the center of gravity of the lower scaffold to be quickly corrected and reset, avoiding the overturning of the lower scaffold. In this way, the lower scaffold can support and correct the combined board, and the combined board drives the upper scaffold to support and correct, and can timely support and correct the upper scaffold in an accurate direction.

[0009] Preferably, the longitudinal precise anti-overturning mechanism includes a support frame arranged above the sliding frame; the support frame is fixedly connected to the counterweight support beam, a linkage electric cylinder is fixedly installed on the lower surface of the support frame, the output end of the linkage electric cylinder is fixedly connected to a pushing pressure sensor, and an articulated pushing block is fixedly installed on one side of the pushing pressure sensor; two connecting shafts are fixedly connected to the inner wall of the articulated pushing block, and a socket shaft is rotatably connected to the outer wall of each connecting shaft. The socket shaft is rotatably connected to a linkage rod at a position far from the connecting shaft on the inner wall.

[0010] The bottom end of the linkage rod is fixedly connected with a hinged sleeve block. Both of the hinged sleeve blocks are slidably connected to the support frame. The top end of each hinged sleeve block is fixedly connected with a longitudinal pull plate. The longitudinal pull plate is slidably connected to the counterweight support beam. A guide rod is slidably connected to the inner wall of the hinged sleeve block, and the guide rod is fixedly connected to the support frame. Two pull frame plates are fixedly connected to one side of the longitudinal pull plate. The cross-sectional shapes of the connecting shaft and the linkage rod are circular. The outer wall of the guide rod and the inner wall of the hinged sleeve block are both smooth surfaces.

[0011] When the present technology is in use, the linkage electric cylinder pushes the push pressure sensor to move rightward. The push pressure sensor makes the hinged push block move rightward. The two connecting shafts respectively drive the two socket shafts to move rightward. The linkage rod drives the hinged sleeve block to move forward. The hinged sleeve block slides forward along the outer wall of the guide rod. The hinged sleeve block will drive the longitudinal pull plate to move forward. In this way, the pull frame plate will longitudinally push the lower scaffolding for support correction. The combined plate drives the upper scaffolding to longitudinally perform support correction. The longitudinal overturning center of gravity of the upper scaffolding can be quickly supported and corrected. In this way, the upper scaffolding can timely perform anti-overturning operation on the upper scaffolding according to the longitudinal overturning direction.

[0012] Preferably, the multi-directional overturning detection component includes an outer frame plate fixedly arranged on the upper surface of the counterweight support beam. A guide frame is fixedly connected to the upper surface of the outer frame plate. A sliding shaft is fixedly connected to the inner wall of the guide frame. Two sliding sleeve blocks are slidably connected to the outer wall of the sliding shaft. The sliding sleeve blocks are slidably connected to the guide frame. A connecting block is fixedly connected to one side of each sliding sleeve block. A sensing pull rod is fixedly installed on one side of the connecting block. A tension sensor is fixedly installed at one end of the sensing pull rod. The two tension sensors are fixedly connected. A longitudinal induction strip is fixedly connected to the other side of each sliding sleeve block. The vertical cross-sectional shape of the longitudinal induction strip is rectangular. The two longitudinal induction strips are symmetrically arranged with respect to the upper scaffolding. The longitudinal induction strip is slidably connected to the upper scaffolding.

[0013] A reinforcement frame is arranged on one side of the guide frame. The reinforcement frame is fixedly connected to the outer frame plate. Two transverse induction strips are slidably connected to the inner wall of the reinforcement frame. A support rod is fixedly installed on one side of the inner wall of the reinforcement frame. The two transverse induction strips are both slidably connected to the support rod. A pressure block is fixedly connected to one end of the transverse induction strip. An induction pressure sensor is installed on one side of the pressure block. The induction pressure sensor is fixedly connected to the reinforcement frame.

[0014] When this technology is in use, when the upper scaffold undergoes lateral overturning, the upper scaffold drives the lateral induction bar to move. The lateral induction bar moves along the inner wall of the reinforcement frame, and the lateral induction bar drives the pressure block to move. The pressure block presses on the induction pressure sensor. When the pressure value sensed by the induction pressure sensor is the same as the overturning pressure value set by the controller, the upper scaffold has a lateral overturning problem, and the controller immediately starts the reduction motor. When the upper scaffold undergoes longitudinal overturning, the upper scaffold will drive the longitudinal induction bar to move longitudinally. The sliding sleeve block moves longitudinally along the outer wall of the sliding shaft. The sliding sleeve block drives the connecting block to move longitudinally, and the connecting block drives the sensing pull rod to move longitudinally and pull. When the pulling force value sensed by the pulling force sensor exceeds the overturning pulling force value set by the controller, the upper scaffold has a longitudinal overturning problem.

[0015] The technical effects and advantages of the present invention:

[0016] 1. Through the lateral precise anti-overturning mechanism of the present invention, it can timely detect the lateral overturning problem of the upper scaffold. The reduction motor drives the bidirectional screw to rotate. The bidirectional screw drives the two threaded sleeve blocks to approach each other under the action of the threaded driving force. The threaded sleeve blocks drive the lateral protection plate to move to the right. The lateral protection plate drives the lateral pull plate to move to the right, and the other lateral pull plate moves to the left. The two lateral pull plates can respectively support and correct the lateral sides of the two lower scaffolds. Until the torque force value sensed by the torque force sensor is the same as the torque force value set by the controller, the controller closes the reduction motor. The combined plate drives the upper scaffold to perform support and correction, and can timely perform precise direction support and correction on the upper scaffold. It can quickly perform precise direction support and correction on the upper scaffold according to the overturning direction of the upper scaffold, perform precise anti-overturning operation, and greatly improve the anti-overturning effect of the large-span scaffold.

[0017] 2. The present invention adopts the longitudinal precise anti-overturning mechanism. The linkage electric cylinder pushes the push pressure sensor to move to the right. The push pressure sensor makes the hinged push block move to the right. The two connecting shafts respectively drive the two socket shafts to move to the right. The socket shafts drive the linkage rod to move forward, and the other linkage rod moves backward. The hinged sleeve block moves forward along the inner wall of the support frame. The hinged sleeve block will drive the longitudinal pull plate to move forward. The pull frame plate will longitudinally push the lower scaffold to perform support and correction. In this way, the upper scaffold can perform anti-overturning operation on the upper scaffold in a timely manner according to the longitudinal overturning direction, and greatly improve the anti-overturning effect of the large-span scaffold.

[0018] 3. The present invention adopts a multi-directional overturning detection component. The lateral induction bar moves along the outer wall of the support rod, and the pressure block presses on the induction pressure sensor. When the pressure value sensed by the induction pressure sensor is the same as the overturning pressure value set by the controller, the deceleration motor is immediately started by the controller, enabling timely awareness of the lateral overturning problem of the upper scaffold and timely performing lateral anti-overturning operations. Or when the upper scaffold undergoes longitudinal overturning, the upper scaffold drives the longitudinal induction bar to move longitudinally, and the connecting block drives the sensing pull rod to move longitudinally and pull. The sensing pull rod moves longitudinally on the tension sensor, enabling timely awareness of the longitudinal overturning problem of the upper scaffold. In this way, according to the overturning direction of the upper scaffold, precise support correction in the precise direction of the upper scaffold can be quickly carried out, and precise anti-overturning operations can be performed.

[0019] Based on the mutual influence of the above-mentioned multiple functions, first, the lateral overturning problem of the upper scaffold can be timely known. The two lateral pull plates can respectively support and correct the lateral sides of the two lower scaffolds. Finally, the longitudinal overturning problem of the upper scaffold can be timely known, and the pull frame plate will longitudinally push the lower scaffold for longitudinal support correction. In summary, according to the overturning direction of the upper scaffold, precise support correction in the precise direction of the upper scaffold can be quickly carried out, and precise anti-overturning operations can be performed, greatly improving the anti-overturning effect of the large-span scaffold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the combined anti-overturning device for the large-span scaffold of the present invention.

[0021] Figure 2 It is a schematic diagram of the vertical cross-section structure of the combined anti-overturning device for the large-span scaffold of the present invention.

[0022] Figure 3 It is a schematic diagram of a partial structure of the vertical cross-section cut at the connection between the sliding frame and the deceleration motor of the present invention.

[0023] Figure 4 It is a schematic diagram of a partial structure of the vertical cross-section cut at the connection between the bidirectional screw and the torque force sensor of the present invention.

[0024] Figure 5 For the present invention Figure 2 The enlarged structure schematic diagram at location A.

[0025] Figure 6 It is a schematic diagram of the cross-section structure of the combined anti-overturning device for the large-span scaffold of the present invention.

[0026] Figure 7 It is a schematic diagram of a partial structure of the cut at the connection between the outer frame board and the guide frame of the present invention.

[0027] Figure 8Schematic diagram of the local structure at the connection between the reinforcement frame and the support rod of the present invention.

[0028] Figure 9 Schematic diagram of the truncated local structure at the connection between the support rod and the reinforcement frame of the present invention.

[0029] Reference numerals are: 1, counterweight support beam; 2, lower scaffolding; 3, composite board; 4, upper scaffolding; 5, sliding frame; 6, bidirectional screw; 7, threaded sleeve block; 8, reduction motor; 9, transverse protection plate; 10, transverse pull plate; 11, torque force sensor; 12, support block; 13, controller; 14, mounting base plate; 15, large-span plank; 16, inclined frame; 17, support frame; 18, linkage electric cylinder; 19, push pressure sensor; 20, articulated push block; 21, connecting shaft; 22, socket shaft; 23, linkage rod; 24, articulated sleeve block; 25, longitudinal pull plate; 26, guide rod; 27, pull frame plate; 28, external plank; 29, guide frame; 30, sliding shaft; 31, sliding sleeve block; 32, connecting block; 33, sensing pull rod; 34, tension sensor; 35, longitudinal induction strip; 36, reinforcement frame; 37, transverse induction strip; 38, support rod; 39, pressure block; 40, induction pressure sensor. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] As shown in the attached Figure 1 -attached Figure 9 The large-span scaffolding combined anti-overturning device shown. The large-span scaffolding combined anti-overturning device is provided with a transverse precise anti-overturning mechanism, a longitudinal precise anti-overturning mechanism, and a multi-directional overturning detection component. The settings of each mechanism and component can timely support and correct the upper scaffolding 4 in the precise direction according to the overturning direction of the upper scaffolding 4, and can accurately perform anti-overturning operations, greatly improving the anti-overturning effect of the large-span scaffolding. The specific structural settings of each mechanism and component are as follows.

[0032] In this technical solution, as shown in the attached Figure 1 -attached Figure 4As shown in the figure, lower scaffolds 2 are provided on both sides of the counterweight support beam 1. A composite plate 3 is fixedly connected to the top end of the lower scaffold 2, and an upper scaffold 4 is fixedly connected to the top end of the composite plate 3. A horizontal precise anti-overturning mechanism is provided at the bottom end of the inner wall of the counterweight support beam 1; the horizontal precise anti-overturning mechanism includes a sliding frame 5 fixedly arranged at the bottom end of the inner wall of the counterweight support beam 1. A bidirectional screw 6 is rotatably connected to the inner wall of the sliding frame 5, and a reduction motor 8 is fixedly installed on one side of the inner wall of the sliding frame 5. The reduction motor 8 is used to drive the bidirectional screw 6 to rotate.

[0033] Two threaded sleeve blocks 7 are threadedly connected to the outer wall of the bidirectional screw 6. The threads on both sides of the outer wall of the bidirectional screw 6 are opposite and symmetrically arranged. Both threaded sleeve blocks 7 are slidably connected to the sliding frame 5; a horizontal protection plate 9 is fixedly connected to the top end of each threaded sleeve block 7, and a horizontal pull plate 10 is fixedly installed at the top end of the horizontal protection plate 9. A torque force sensor 11 is fixedly installed at one end of the bidirectional screw 6; a longitudinal precise anti-overturning mechanism is provided above the sliding frame 5; a multi-directional overturning detection component is provided on the upper surface of the counterweight support beam 1.

[0034] In this technical solution, as shown in the attached Figure 1 -attached Figure 4 As shown in the figure, a support block 12 is installed on one side of the outer wall of the torque force sensor 11. Both the sliding frame 5 and the torque force sensor 11 are fixedly connected to the support block 12. The torque force sensor 11 is divided into a housing and a sensing end; the sensing end of the torque force sensor 11 is rotatably connected to the sliding frame 5, so that the sliding frame 5 supports the support block 12, and the support block 12 supports the torque force sensor 11, ensuring that the torque force sensor 11 can be used stably. A controller 13 is fixedly installed on one side of the counterweight support beam 1. An installation base plate 14 is fixedly connected to the bottom end of each lower scaffold 2, so as to support the lower scaffold 2 through the installation base plate 14. When the pressure value sensed by the induction pressure sensor 40 is the same as the overturning pressure value set by the controller 13, the reduction motor 8 is immediately started by the controller 13.

[0035] A large-span plank 15 is installed at the top end of the upper scaffold 4. Both upper scaffolds 4 are fixedly connected to the large-span plank 15; two inclined frames 16 are provided above the counterweight support beam 1. Both inclined frames 16 are fixedly connected to the large-span plank 15, so as to enable the upper scaffold 4 to provide a vertical supporting force for the large-span plank 15, and the two inclined frames 16 can obliquely support the lower surface of the large-span plank 15, thus realizing large-span construction.

[0036] In this technical solution, as shown in the attached Figure 2 -attached Figure 6As shown in the figure, the longitudinal precise anti-overturning mechanism includes a support frame 17 arranged above the sliding frame 5; the support frame 17 is fixedly connected to the counterweight support beam 1, a linkage electric cylinder 18 is fixedly installed on the lower surface of the support frame 17, the output end of the linkage electric cylinder 18 is fixedly connected to a push pressure sensor 19, and a hinged push block 20 is fixedly installed on one side of the push pressure sensor 19. Two connecting shafts 21 are fixedly connected to the inner wall of the hinged push block 20, and a socket shaft 22 is rotatably connected to the outer wall of each connecting shaft 21. A linkage rod 23 is rotatably connected to the inner wall of the socket shaft 22 at a position far from the connecting shaft 21.

[0037] The bottom end of the linkage rod 23 is fixedly connected to a hinged sleeve block 24. Both hinged sleeve blocks 24 are slidably connected to the support frame 17. The top end of each hinged sleeve block 24 is fixedly connected to a longitudinal pull plate 25. The longitudinal pull plate 25 is slidably connected to the counterweight support beam 1. A guide rod 26 is slidably connected to the inner wall of the hinged sleeve block 24, and the guide rod 26 is fixedly connected to the support frame 17; two pull frame plates 27 are fixedly connected to one side of the longitudinal pull plate 25. The cross-sectional shapes of the connecting shaft 21 and the linkage rod 23 are circular, and the outer wall of the guide rod 26 and the inner wall of the hinged sleeve block 24 are both smooth surfaces.

[0038] In this technical solution, as shown in the attached Figure 1 -attached Figure 9 figure, the multi-directional overturning detection component includes an external frame plate 28 fixedly arranged on the upper surface of the counterweight support beam 1. A guide frame 29 is fixedly connected to the upper surface of the external frame plate 28, and a sliding shaft 30 is fixedly connected to the inner wall of the guide frame 29. Two sliding sleeve blocks 31 are slidably connected to the outer wall of the sliding shaft 30, and the sliding sleeve blocks 31 are slidably connected to the guide frame 29. A connecting block 32 is fixedly connected to one side of each sliding sleeve block 31. A sensing pull rod 33 is fixedly installed on one side of the connecting block 32. A tension sensor 34 is fixedly installed at one end of the sensing pull rod 33, and the two tension sensors 34 are fixedly connected; a longitudinal induction strip 35 is fixedly connected to the other side of each sliding sleeve block 31. The longitudinal induction strip 35 is slidably connected to the upper scaffolding 4. The vertical cross-sectional shape of the longitudinal induction strip 35 is rectangular, and the two longitudinal induction strips 35 are symmetrically arranged with respect to the upper scaffolding 4; a reinforcing frame 36 is arranged on one side of the guide frame 29, and the reinforcing frame 36 is fixedly connected to the external frame plate 28.

[0039] Two transverse induction strips 37 are slidably connected to the inner wall of the reinforcing frame 36. A support rod 38 is fixedly installed on one side of the inner wall of the reinforcing frame 36. Both transverse induction strips 37 are slidably connected to the support rod 38. A pressure block 39 is fixedly connected to one end of the transverse induction strip 37. An induction pressure sensor 40 is installed on one side of the pressure block 39, and the induction pressure sensor 40 is fixedly connected to the reinforcing frame 36.

[0040] The working principle of the large-span scaffolding combined anti-overturning device of the present invention is as follows:

[0041] First, when the present invention performs lateral overturning detection, the lower scaffolding 2 is supported by the mounting base plate 14, the lower scaffolding 2 supports the combined plate 3, the combined plate 3 supports the upper scaffolding 4, and the upper scaffolding 4 can provide a vertical supporting force for the long-span plank 15. At the same time, the two inclined frames 16 can obliquely support the lower surface of the long-span plank 15, so as to realize long-span erection construction. When the upper scaffolding 4 undergoes lateral overturning, the upper scaffolding 4 drives the lateral induction strip 37 to move. The lateral induction strip 37 moves along the outer wall of the support rod 38 and also moves along the inner wall of the reinforcement frame 36, and the lateral induction strip 37 drives the pressure block 39 to move. The pressure block 39 presses on the induction pressure sensor 40, and the induction pressure sensor 40 is supported by the reinforcement frame 36. In this way, the induction pressure sensor 40 can sense the pressure value. When the pressure value sensed by the induction pressure sensor 40 is the same as the overturning pressure value set by the controller 13, the upper scaffolding 4 has a lateral overturning problem, and the controller 13 immediately starts the reduction motor 8.

[0042] Secondly, when the present invention performs lateral precise anti-overturning, the reduction motor 8 drives the bidirectional screw 6 to rotate. The bidirectional screw 6 drives the two threaded sleeve blocks 7 to approach each other under the action of the thread transmission force. One threaded sleeve block 7 moves right along the inner wall of the sliding frame 5, and the other threaded sleeve block 7 moves left along the inner wall of the sliding frame 5. The threaded sleeve block 7 drives the lateral protection plate 9 to move right, the lateral protection plate 9 drives the lateral pull plate 10 to move right, and the other lateral pull plate 10 moves left. In this way, the two lateral pull plates 10 can respectively support and correct the lateral sides of the two lower scaffolding 2.

[0043] At the same time, the torque sensor 11 senses the torque of the bidirectional screw 6. In this way, the sliding frame 5 supports the support block 12, and the support block 12 supports the torque sensor 11. Until the torque value sensed by the torque sensor 11 is the same as the torque value set by the controller 13, the controller 13 turns off the reduction motor 8. After the lower scaffolding 2 is supported and corrected in this way, the center of gravity of the lower scaffolding 2 can be quickly corrected and reset, thereby avoiding the overturning of the lower scaffolding 2. In this way, the lower scaffolding 2 can support and correct the combined plate 3, and the combined plate 3 drives the upper scaffolding 4 to support and correct, so as to timely support and correct the upper scaffolding 4 in the precise direction, realizing the lateral precise anti-overturning operation of the upper scaffolding 4.

[0044] Meanwhile, when the present invention performs longitudinal overturning detection, when the upper scaffolding 4 undergoes longitudinal overturning, the upper scaffolding 4 will drive the longitudinal induction strip 35 to move longitudinally. The longitudinal induction strip 35 drives the sliding sleeve block 31 to move longitudinally. The sliding sleeve block 31 moves longitudinally along the outer wall of the sliding shaft 30, and the sliding sleeve block 31 moves longitudinally along the inner wall of the guiding frame 29. Meanwhile, the sliding sleeve block 31 drives the connecting block 32 to move longitudinally, and the connecting block 32 drives the sensing pull rod 33 to move longitudinally and be pulled. The sensing pull rod 33 moves longitudinally and is pulled on the tension sensor 34. Thus, when the tension value sensed by the tension sensor 34 exceeds the overturning tension value set by the controller 13, it indicates that the upper scaffolding 4 has a longitudinal overturning problem, and then the controller 13 immediately activates the linkage electric cylinder 18.

[0045] Finally, when the present invention performs precise longitudinal anti-overturning, the linkage electric cylinder 18 pushes the pushing pressure sensor 19 to move rightward. The pushing pressure sensor 19 causes the hinged push block 20 to move rightward. The hinged push block 20 drives the two connecting shafts 21 to move rightward synchronously. The two connecting shafts 21 respectively drive the two socket shafts 22 to move rightward. The socket shaft 22 drives the linkage rod 23 to move forward, and the other linkage rod 23 moves backward.

[0046] The linkage rod 23 drives the hinged sleeve block 24 to move forward. The hinged sleeve block 24 moves forward along the inner wall of the support frame 17. Meanwhile, the hinged sleeve block 24 moves forward and slides along the outer wall of the guiding rod 26. The hinged sleeve block 24 drives the longitudinal pull plate 25 to move forward, and the longitudinal pull plate 25 drives the two pull frame plates 27 to move forward. In this way, the pull frame plate 27 longitudinally pushes the lower scaffolding 2 for support correction. Meanwhile, the lower scaffolding 2 drives the combined plate 3 to longitudinally perform support correction. The combined plate 3 drives the upper scaffolding 4 to longitudinally perform support correction. The longitudinal overturning center of gravity of the upper scaffolding 4 can be quickly supported and corrected. In this way, the upper scaffolding 4 can perform anti-overturning operations in a timely manner according to the longitudinal overturning direction. When the pressure value sensed by the pushing pressure sensor 19 is the same as the pressure value set by the controller 13, the controller 13 closes the linkage electric cylinder 18, so that the lower scaffolding 2 can perform anti-overturning operations according to the specified extrusion force.

[0047] Contents not described in detail in the specification belong to the well-known prior art in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figures and will not be described herein again.

[0048] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A combined anti-overturning device for a large-span scaffolding includes a counterweight support beam, and lower scaffolding is provided on both sides of the counterweight support beam. The top of the lower scaffolding is fixedly connected with a combined plate, and the top of the combined plate is fixedly connected with an upper scaffolding, and is characterized in that: The bottom end of the inner wall of the counterweight support beam is provided with a transverse precise anti-overturning mechanism; The lateral precise anti-overturning mechanism includes a sliding frame fixedly arranged at the bottom end of the inner wall of the counterweight support beam, the inner wall of the sliding frame is rotatably connected with a bidirectional screw, and a reduction motor is fixedly installed on one side of the inner wall of the sliding frame, and the reduction motor is used to drive the bidirectional screw to rotate; the outer wall of the bidirectional screw is threadedly connected with two threaded sleeves, and the two threads on the outer wall of the bidirectional screw are opposite and symmetrical; the top of each threaded sleeve is fixedly connected with a transverse protective plate, and the top of the transverse protective plate is fixedly installed with a transverse pull plate, and a torque sensor is fixedly installed on one end of the bidirectional screw; a longitudinal precise anti-overturning mechanism is arranged above the sliding frame; a multi-directional overturning detection component is arranged on the upper surface of the counterweight support beam, and the multi-directional overturning detection component includes an external frame plate fixedly arranged on the upper surface of the counterweight support beam; the upper surface of the external frame plate is fixedly connected with a guide frame, and the inner wall of the guide frame is fixedly connected with a sliding shaft, and the sliding shaft The outer wall is slidably connected to two sliding sleeve blocks, which are slidably connected to the guide frame; one side of each sliding sleeve block is fixedly connected to a connecting block, a sensing pull rod is fixedly installed on one side of the connecting block, a tension sensor is fixedly installed on one end of the sensing pull rod, and the two tension sensors are fixedly connected; the other side of each sliding sleeve block is fixedly connected to a longitudinal sensing bar, which is slidably connected to the upper scaffolding; a reinforcement frame is provided on one side of the guide frame, which is fixedly connected to the external frame plate, and the inner wall of the reinforcement frame is slidably connected to two transverse sensing bars, a support rod is fixedly installed on one side of the inner wall of the reinforcement frame, and the two transverse sensing bars are slidably connected to the support rod; one end of the transverse sensing bar is fixedly connected to a pressure block, an inductive pressure sensor is installed on one side of the pressure block, and the inductive pressure sensor is fixedly connected to the reinforcement frame.

2. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: The output end of the reduction motor is fixedly connected to the bidirectional screw, and the outer walls of the two threaded sleeves and the inner wall of the sliding frame are both smooth surfaces.

3. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: A gap is provided between the transverse pull plate and the lower scaffold.

4. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: A support block is installed on one side of the outer wall of the torque sensor, the sliding frame and the torque sensor are fixedly connected to the support block, and the torque sensor is divided into a housing and a sensing end; The sensing end of the torque sensor is rotationally connected to the sliding frame.

5. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: A controller is fixedly installed on one side of the counterweight support beam, and a mounting base plate is fixedly connected to the bottom end of each lower scaffold.

6. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: A large-span frame plate is installed on the top of the upper scaffolding, and the two upper scaffoldings are fixedly connected to the large-span frame plate; Two inclined frames are arranged above the counterweight support beam, and both of the inclined frames are fixedly connected to the large-span frame plate.

7. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: The longitudinal precise anti-overturning mechanism comprises a support frame arranged above the sliding frame; The support frame is fixedly connected to the counterweight support beam, a linkage electric cylinder is fixedly installed on the lower surface of the support frame, a push pressure sensor is fixedly connected to the output end of the linkage electric cylinder, and a hinged push block is fixedly installed on one side of the push pressure sensor; The inner wall of the hinged push block is fixedly connected to two connecting shafts, the outer wall of each connecting shaft is rotatably connected to a sleeve shaft, and the inner wall of the sleeve shaft is rotatably connected to a linkage rod at a position away from the connecting shaft; The bottom end of the linkage rod is fixedly connected with an articulated sleeve block, and the two articulated sleeve blocks are slidably connected to the support frame. The top of each articulated sleeve block is fixedly connected with a longitudinal pull plate, and the longitudinal pull plate is slidably connected to the counterweight support beam. The inner wall of the articulated sleeve block is slidably connected with a guide rod, and the guide rod is fixedly connected to the support frame. One side of the longitudinal pull plate is fixedly connected with two pull frame plates.

8. The large-span scaffolding combined anti-overturning device according to claim 7 is characterized in that: The cross-sections of the connecting shaft and the linkage rod are circular, and the outer wall of the guide rod and the inner wall of the hinged sleeve block are both smooth surfaces.

9. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: The vertical cross-section of the longitudinal sensing strip is rectangular, and the two longitudinal sensing strips are symmetrically arranged with respect to the upper scaffold.

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