Large-span scaffold combined type overturn-preventing device

Abstract

The invention discloses a combined overturn-preventing device for a large-span scaffold, and particularly relates to the technical field of scaffolds, which comprises a counterweight strut beam, a lower scaffold, a combined plate and a transverse precise overturn-preventing mechanism, wherein the transverse precise anti-overturning mechanism comprises a sliding frame, a two-way screw rod, a speed reducing motor, two threaded sleeve blocks, a transverse protection plate, a transverse pulling plate and a torque force sensor; the device further comprises a longitudinal accurate overturn-preventing mechanism and a multi-directional overturn detecting assembly. Through the transverse precise overturning-preventing mechanism, the supporting and correcting device has the advantages that the upper scaffold can be timely supported and corrected in the precise direction, the upper scaffold can be rapidly supported and corrected in the precise direction, and the overturning-preventing effect of the large-span scaffold is greatly improved, so that the problems that the overturning directions are too many, and the supporting and correcting effect is poor are solved. The problems that a large-span scaffold is difficult to accurately support and correct, the overturning-preventing operation is difficult to accurately carry out, and the overturning-preventing effect is poor are solved.

Description

Technical Field

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

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

[0003] Among the existing public technical documents, the Chinese patent announcement number CN202324579U discloses a combined attached lifting scaffolding, which can effectively prevent the frame from tipping over inward and outward through the guide rails and anti-tilt devices on the main frame. When the frame falls unexpectedly, the swing arm anti-fall device will be activated, which can promptly and effectively prevent the frame from falling freely downward. After the frame is lifted into place, the frame can be attached and fixed to the wall or beam of the building at any position by adjusting the pull rod and the stepless adjustment load-bearing device. The use of 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, it is easily affected by multiple factors such as wind and load and is prone to overturning. Overturning occurs in the horizontal and vertical 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, and it is difficult to accurately perform anti-overturning operations, and the anti-overturning effect is poor. For this reason, a combined anti-overturning device for large-span scaffolding is provided. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a combined anti-overturning device for a large-span scaffolding, comprising a counterweight support beam, lower scaffoldings are provided on both sides of the counterweight support beam, the top of the lower scaffolding is fixedly connected with a combined plate, the top of the combined plate is fixedly connected with an upper scaffold, and a transverse precise anti-overturning mechanism is provided at the bottom end of the inner wall of the counterweight support beam; the transverse precise anti-overturning mechanism comprises 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.

[0006] The outer wall of the bidirectional screw is threadedly connected to 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 to 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 at one end of the bidirectional screw; a longitudinal precise anti-overturning mechanism is provided above the sliding frame; and a multi-directional overturning detection component is provided 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 sleeves and the inner wall of the sliding frame are smooth surfaces. A gap is provided between the transverse pull plate and the lower scaffolding. A support block is installed on one side of the outer wall of the torque sensor, and the sliding frame and the torque sensor are fixedly connected to the support block. The torque sensor is divided into a shell and a sensing end; the sensing end of the torque sensor is rotatably connected to the sliding frame. A controller is fixedly installed on one side of the counterweight support beam, and the bottom end of each lower scaffold is fixedly connected to a mounting base plate. A large-span frame plate is installed on the top of the upper scaffolding, and the two upper scaffolds are fixedly connected to the large-span frame plate; two inclined frames are provided above the counterweight support beam, and the two inclined frames are fixedly connected to the large-span frame plate.

[0008] When this technology is in use, the reduction motor drives the bidirectional screw to rotate, and the bidirectional screw drives the two threaded sleeves to approach each other under the action of the thread transmission force. The threaded sleeve drives the transverse protection plate to move right, and the other transverse pull plate to move left, so that the two transverse pull plates can respectively support and correct the transverse sides of the two lower scaffolds. When the torque value sensed by the torque sensor is the same as the torque value set by the controller, the reduction motor is turned off by the controller. The center of gravity of the lower scaffold is quickly corrected and reset to prevent the lower scaffold from overturning. In this way, the lower scaffold can support and correct the combination plate, and the combination plate drives the upper scaffold to support and correct it, so that the upper scaffold can be supported and corrected in a precise direction in time.

[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 push pressure sensor, and an articulated push block is fixedly installed on one side of the push pressure sensor; the inner wall of the articulated 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.

[0010] 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. The cross-sectional shape of the connecting shaft and the linkage rod is circular, and the outer wall of the guide rod and the inner wall of the articulated sleeve block are both smooth surfaces.

[0011] When the present technology is in use, the linkage electric cylinder pushes the pressure sensor to move right, and the pushing pressure sensor causes the articulated push block to move right. The two connecting shafts respectively drive the two sleeve shafts to move right, and the articulated sleeve block is driven forward by the linkage rod. The articulated sleeve block slides forward along the outer wall of the guide rod, and the articulated sleeve block drives the longitudinal pull plate forward, so that the pull frame plate pushes the lower scaffolding longitudinally for support correction, and the combination plate drives the upper scaffolding longitudinally for support correction, and the longitudinal overturning center of gravity of the upper scaffolding can be quickly supported and corrected, so that the upper scaffolding can be timely anti-overturned according to the longitudinal overturning direction.

[0012] Preferably, the multi-directional overturning detection component includes an external 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 external frame plate, and a sliding shaft is fixedly connected to the inner wall of the guide frame, and two sliding sleeve blocks are slidably connected to the outer wall of the sliding shaft, and the sliding sleeve blocks are slidably connected to the guide frame; one side of each sliding sleeve block is fixedly connected to a connecting block, one side of the connecting block is fixedly installed with a sensing rod, and a tension sensor is fixedly installed at one end of the sensing rod, and the two tension sensors are fixedly connected; the other side of each sliding sleeve block is fixedly connected to a longitudinal sensing strip, the vertical cross-section of the longitudinal sensing strip is rectangular, the two longitudinal sensing strips are symmetrically arranged about the upper scaffolding, and the longitudinal sensing strips are slidably connected to the upper scaffolding.

[0013] A reinforcement frame is provided on one side of the guide frame, and the reinforcement frame is fixedly connected to the external frame plate, and two transverse sensing strips are slidably connected to the inner wall of the reinforcement frame, and a support rod is fixedly installed on one side of the inner wall of the reinforcement frame, and the two transverse sensing strips are slidably connected to the support rod; a pressure block is fixedly connected to one end of the transverse sensing strip, and 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.

[0014] When this technology is in use, when the upper scaffolding is overturned laterally, the upper scaffolding drives the transverse sensing strip to move, and the transverse sensing strip moves along the inner wall of the reinforcement frame, and the transverse sensing strip drives the pressure block to move. The pressure block is squeezed on the inductive pressure sensor. When the pressure value sensed by the inductive pressure sensor is the same as the overturning pressure value set by the controller, the upper scaffolding will have a transverse overturning problem, and the reduction motor will be immediately started through the controller. When the upper scaffolding overturns longitudinally, the upper scaffolding will drive the longitudinal sensing strip to move longitudinally, the sliding sleeve block will move longitudinally along the outer wall of the sliding shaft, the sliding sleeve block will drive the connecting block to move longitudinally, and the connecting block will drive the sensing pull rod to move longitudinally. When the tension value sensed by the tension sensor exceeds the overturning tension value set by the controller, the upper scaffolding will have a longitudinal overturning problem.

[0015] Technical effects and advantages of the present invention: 1. The present invention can timely know the lateral overturning problem of the upper scaffolding through the lateral precise anti-overturning mechanism, the reduction motor drives the bidirectional screw to rotate, and the bidirectional screw drives the two threaded sleeves to approach each other under the action of the thread transmission force, and drives the transverse protection plate to move right through the threaded sleeve, and the transverse protection plate drives the transverse pull plate to move right, while the other transverse pull plate moves left, and the two transverse pull plates can respectively support and correct the lateral sides of the two lower scaffoldings until the torque force value sensed by the torque sensor is the same as the torque force value set by the controller, then the reduction motor is turned off by the controller, and the combination plate drives the upper scaffolding to support and correct, which can timely support and correct the upper scaffolding in a precise direction, and can promptly support and correct the upper scaffolding in a precise direction according to the overturning direction of the upper scaffolding, accurately perform anti-overturning operations, and greatly improve the anti-overturning effect of the large-span scaffolding.

[0016] 2. The present invention adopts a longitudinal precise anti-overturning mechanism. The linkage electric cylinder pushes the pressure sensor to move right, and the pressure sensor causes the hinged push block to move right. The two connecting shafts respectively drive the two sleeve shafts to move right, and the sleeve shaft drives 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, and the hinged sleeve block will drive the longitudinal pull plate to move forward. The pull frame plate will push the lower scaffolding longitudinally for support correction. In this way, the upper scaffolding can be timely anti-overturned according to the longitudinal overturning direction, which greatly improves the anti-overturning effect of the large-span scaffolding.

[0017] 3. The present invention adopts a multi-directional overturning detection component. The lateral sensing strip moves along the outer wall of the support rod, and the pressure block is squeezed on the inductive pressure sensor. When the pressure value sensed by the inductive pressure sensor is the same as the overturning pressure value set by the controller, the reduction motor is immediately started by the controller, so that the lateral overturning problem of the upper scaffolding can be known in time, and the lateral anti-overturning operation can be performed in time. Or when the upper scaffolding overturns longitudinally, the upper scaffolding will drive the longitudinal sensing strip to move longitudinally, and the connecting block will drive the sensing rod to move longitudinally. The sensing rod moves longitudinally on the tension sensor, so that the longitudinal overturning problem of the upper scaffolding can be known in time. In this way, the upper scaffolding can be quickly supported and corrected in a precise direction according to the overturning direction of the upper scaffolding, and the anti-overturning operation can be accurately performed.

[0018] Based on the mutual influence of the above multiple effects, first, it can be timely known that the upper scaffolding has a lateral overturning problem, and the two lateral pull plates can respectively support and correct the lateral sides of the two lower scaffoldings. Finally, it can be timely known that the upper scaffolding has a longitudinal overturning problem, and the pull frame plate will push the lower scaffolding longitudinally for longitudinal support correction. In summary, according to the overturning direction of the upper scaffolding, the upper scaffolding can be quickly supported and corrected in a precise direction, and the anti-overturning operation can be accurately performed, which greatly improves the anti-overturning effect of the large-span scaffolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the combined anti-overturning device of the large-span scaffolding of the present invention.

[0020] Figure 2 It is a schematic diagram of the vertical cross-section structure of the large-span scaffolding combined anti-overturning device of the present invention.

[0021] Figure 3 It is a schematic diagram of the local structure of the vertical section of the connection between the sliding frame and the reduction motor of the present invention.

[0022] Figure 4 It is a schematic diagram of the local structure of the vertical section of the connection between the bidirectional screw and the torque sensor of the present invention.

[0023] Figure 5 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the combined anti-overturning device of the large-span scaffolding of the present invention.

[0025] Figure 7 It is a schematic diagram of the partial structure of the connection between the external frame plate and the guide frame of the present invention.

[0026] Figure 8It is a schematic diagram of the local structure of the connection between the reinforcement frame and the support rod of the present invention.

[0027] Fig. 9 It is a schematic diagram of the partial structure of the connection between the support rod and the reinforcement frame of the present invention.

[0028] The accompanying drawings are marked as follows: 1. counterweight support beam; 2. lower scaffolding; 3. combination 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 sensor; 12. support block; 13. controller; 14. installation base plate; 15. large span frame plate; 16. tilt frame; 17. support frame; 18. linkage electric cylinder; 19. push pressure sensor; 20. hinged push block ; 21. Connecting shaft; 22. Sleeve shaft; 23. Linking rod; 24. Articulated sleeve block; 25. Longitudinal pull plate; 26. Guide rod; 27. Pull frame plate; 28. External frame plate; 29. ​​Guide frame; 30. Sliding shaft; 31. Sliding sleeve block; 32. Connecting block; 33. Sensing pull rod; 34. Tension sensor; 35. Longitudinal sensing strip; 36. Reinforcement frame; 37. Horizontal sensing strip; 38. Support rod; 39. Pressure block; 40. Inductive pressure sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As attached Figure 1 - Attachment Fig. 9 The large-span scaffolding combined anti-overturning device shown in the figure 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 a precise direction according to the overturning direction of the upper scaffolding 4, and can accurately perform anti-overturning operations, thereby greatly improving the anti-overturning effect of the large-span scaffolding. The specific structural settings of each mechanism and component are as follows.

[0031] In this technical solution, as shown in the attached Figure 1 - Attachment Figure 4As shown, lower scaffolding 2 is provided on both sides of the counterweight support beam 1, the top of the lower scaffolding 2 is fixedly connected with a combination plate 3, the top of the combination plate 3 is fixedly connected with an upper scaffolding 4, and a transverse precise anti-overturning mechanism is provided at the bottom end of the inner wall of the counterweight support beam 1; the transverse 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, the inner wall of the sliding frame 5 is rotatably connected with a bidirectional screw 6, and a reduction motor 8 is fixedly installed on one side of the inner wall of the sliding frame 5, and the reduction motor 8 is used to drive the bidirectional screw 6 to rotate.

[0032] The outer wall of the bidirectional screw 6 is threadedly connected to two threaded sleeves 7, and the two threads on the outer wall of the bidirectional screw 6 are opposite and symmetrical, and the two threaded sleeves 7 are slidingly connected to the sliding frame 5; the top of each threaded sleeve 7 is fixedly connected to a transverse protective plate 9, and the top of the transverse protective plate 9 is fixedly installed with a transverse pull plate 10, and a torque 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; the upper surface of the counterweight support beam 1 is provided with a multi-directional overturning detection component.

[0033] In this technical solution, as shown in the attached Figure 1 - Attachment Figure 4 As shown, a support block 12 is installed on one side of the outer wall of the torque sensor 11, and the sliding frame 5 and the torque sensor 11 are fixedly connected to the support block 12. The torque sensor 11 is divided into a shell and a sensing end; the sensing end of the torque 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 sensor 11, ensuring that the torque sensor 11 can be used stably. A controller 13 is fixedly installed on one side of the counterweight support beam 1, and a mounting base plate 14 is fixedly connected to the bottom end of each lower scaffolding 2, so that the lower scaffolding 2 can be supported by the mounting base plate 14. When the pressure value sensed by the inductive pressure sensor 40 is the same as the overturning pressure value set by the controller 13, the reduction motor 8 is immediately started through the controller 13.

[0034] A large-span frame board 15 is installed at the top of the upper scaffolding 4, and the two upper scaffoldings 4 are fixedly connected to the large-span frame board 15; two inclined frames 16 are provided above the counterweight support beam 1, and the two inclined frames 16 are fixedly connected to the large-span frame board 15, so that the upper scaffolding 4 can provide vertical support force for the large-span frame board 15, and the two inclined frames 16 can tiltly support the lower surface of the large-span frame board 15, thereby realizing large-span construction.

[0035] In this technical solution, as shown in the attached Figure 2 - Attachment Figure 6As shown, 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, a push pressure sensor 19 is fixedly connected to the output end of the linkage electric cylinder 18, and a hinged push block 20 is fixedly installed on one side of the push pressure sensor 19. The inner wall of the hinged push block 20 is fixedly connected to two connecting shafts 21, the outer wall of each connecting shaft 21 is rotatably connected to a sleeve shaft 22, and a linkage rod 23 is rotatably connected to the inner wall of the sleeve shaft 22 and at a position away from the connecting shaft 21.

[0036] The bottom end of the linkage rod 23 is fixedly connected with an articulated sleeve 24, and the two articulated sleeves 24 are slidably connected to the support frame 17. The top of each articulated sleeve 24 is fixedly connected with a longitudinal pull plate 25, and the longitudinal pull plate 25 is slidably connected to the counterweight support beam 1. The inner wall of the articulated sleeve 24 is slidably connected with a guide rod 26, and the guide rod 26 is fixedly connected to the support frame 17; one side of the longitudinal pull plate 25 is fixedly connected with two pull frame plates 27. The cross-section shape of the connecting shaft 21 and the linkage rod 23 is circular, and the outer wall of the guide rod 26 and the inner wall of the articulated sleeve 24 are both smooth surfaces.

[0037] In this technical solution, as shown in the attached Figure 1 - Attachment Fig. 9 As shown, the multi-directional overturning detection assembly 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 sleeves 31 are slidably connected to the outer wall of the sliding shaft 30, and the sliding sleeves 31 are slidably connected to the guide frame 29. A connecting block 32 is fixedly connected to one side of each sliding sleeve 31, and a sensing 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 rod 33, and the two tension sensors 34 are fixedly connected; a longitudinal sensing strip 35 is fixedly connected to the other side of each sliding sleeve 31, and the longitudinal sensing strip 35 is slidably connected to the upper scaffold 4. The vertical cross-section of the longitudinal sensing strip 35 is rectangular, and the two longitudinal sensing strips 35 are symmetrically arranged about the upper scaffold 4; a reinforcement frame 36 is provided on one side of the guide frame 29, and the reinforcement frame 36 is fixedly connected to the external frame plate 28.

[0038] Two transverse sensing strips 37 are slidably connected to the inner wall of the reinforcement frame 36, and a support rod 38 is fixedly installed on one side of the inner wall of the reinforcement frame 36. Both transverse sensing strips 37 are slidably connected to the support rod 38. A pressure block 39 is fixedly connected to one end of the transverse sensing strip 37, and an inductive pressure sensor 40 is installed on one side of the pressure block 39, and the inductive pressure sensor 40 is fixedly connected to the reinforcement frame 36.

[0039] The working principle of the combined anti-overturning device of the large-span scaffolding of the present invention is as follows: First, when the present invention performs lateral overturning detection, the lower scaffolding 2 is supported by the installation base plate 14, the lower scaffolding 2 supports the combined board 3, the combined board 3 supports the upper scaffolding 4, and the upper scaffolding 4 can provide vertical support force for the large-span frame board 15. At the same time, the two inclined frames 16 can tilt to support the lower surface of the large-span frame board 15, so as to achieve large-span construction. When the upper scaffolding 4 is overturned laterally, the upper scaffolding 4 drives the lateral sensing bar 37 to move, the lateral sensing bar 37 moves along the outer wall of the support rod 38, and the lateral sensing bar 37 moves along the inner wall of the reinforcement frame 36, and the lateral sensing bar 37 drives the pressure block 39 to move. The pressure block 39 is pressed on the inductive pressure sensor 40, and the inductive pressure sensor 40 is supported by the reinforcement frame 36, so that the inductive pressure sensor 40 can sense the pressure value. When the pressure value sensed by the inductive 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 reduction motor 8 is immediately started through the controller 13.

[0040] Secondly, when the present invention performs lateral precise anti-overturning, the reduction motor 8 drives the bidirectional screw 6 to rotate, and the bidirectional screw 6 drives the two threaded sleeves 7 to approach each other under the action of the thread transmission force, and the threaded sleeve 7 moves right along the inner wall of the slide frame 5, while the other threaded sleeve 7 moves left along the inner wall of the slide frame 5. The threaded sleeve 7 drives the transverse protection plate 9 to move right, and the transverse protection plate 9 drives the transverse pull plate 10 to move right, while the other transverse pull plate 10 moves left, so that the two transverse pull plates 10 can respectively support and correct the transverse sides of the two lower scaffolds 2.

[0041] At the same time, the torque force of the bidirectional screw 6 is sensed by the torque force sensor 11, so that the sliding frame 5 supports the support block 12, and the support block 12 supports the torque force sensor 11, until the torque force value sensed by the torque force sensor 11 is the same as the torque force value set by the controller 13, and then the reduction motor 8 is turned off by the controller 13. After the lower scaffold 2 is supported and corrected in this way, the center of gravity of the lower scaffold 2 can be quickly corrected and reset, thereby preventing the lower scaffold 2 from overturning. In this way, the lower scaffold 2 can support and correct the combination board 3, and the combination board 3 drives the upper scaffold 4 to support and correct, and can timely support and correct the upper scaffold 4 in a precise direction, so as to achieve the lateral precise anti-overturning operation of the upper scaffold 4.

[0042] At the same time, when the present invention performs longitudinal overturning detection, when the upper scaffold 4 overturns longitudinally, the upper scaffold 4 will drive the longitudinal sensing strip 35 to move longitudinally, the longitudinal sensing strip 35 drives the sliding sleeve 31 to move longitudinally, the sliding sleeve 31 moves longitudinally along the outer wall of the sliding shaft 30, and the sliding sleeve 31 moves longitudinally along the inner wall of the guide frame 29. At the same time, the sliding sleeve 31 drives the connecting block 32 to move longitudinally, the connecting block 32 drives the sensing rod 33 to move longitudinally, and the sensing rod 33 moves longitudinally on the tension sensor 34. When the tension value sensed by the tension sensor 34 exceeds the overturning tension value set by the controller 13, the upper scaffold 4 has a longitudinal overturning problem, and the linkage electric cylinder 18 is immediately started through the controller 13.

[0043] Finally, when the present invention performs longitudinal precise anti-rollover, the linkage electric cylinder 18 pushes the pressure sensor 19 to move right, and the pushing pressure sensor 19 causes the articulated push block 20 to move right, and the articulated push block 20 drives the two connecting shafts 21 to move right synchronously, and the two connecting shafts 21 respectively drive the two sleeve shafts 22 to move right, and the sleeve shaft 22 drives the linkage rod 23 to move forward, and the other linkage rod 23 moves backward.

[0044] The articulated sleeve 24 is driven forward by the linkage rod 23, and the articulated sleeve 24 moves forward along the inner wall of the support frame 17, and at the same time, the articulated sleeve 24 slides forward along the outer wall of the guide rod 26, and the articulated sleeve 24 drives the longitudinal pull plate 25 to move forward, and the longitudinal pull plate 25 drives the two frame pull plates 27 to move forward. In this way, the frame pull plate 27 will push the lower scaffold 2 longitudinally for support correction, and at the same time, the lower scaffold 2 drives the combination plate 3 to support correction longitudinally, and the combination plate 3 drives the upper scaffold 4 to support correction longitudinally, and the longitudinal overturning center of gravity of the upper scaffold 4 can be quickly supported and corrected, so that the upper scaffold 4 can be timely anti-overturned according to the longitudinal overturning direction. When the pressure value sensed by the push pressure sensor 19 is the same as the pressure value set by the controller 13, the linkage electric cylinder 18 is closed by the controller 13, so that the lower scaffold 2 can be made to perform anti-overturning operation according to the specified extrusion force.

[0045] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined anti-overturning device for a large-span scaffold, comprising a counterweight support beam (1), wherein lower scaffolds (2) are provided on both sides of the counterweight support beam (1), the top of the lower scaffold (2) is fixedly connected to a combined plate (3), and the top of the combined plate (3) is fixedly connected to an upper scaffold (4), characterized in that: The bottom end of the inner wall of the counterweight support beam (1) is provided with a transverse precise anti-overturning mechanism; The lateral precise anti-overturning mechanism comprises a sliding frame (5) fixedly arranged at the bottom end of the inner wall of the counterweight support beam (1), the inner wall of the sliding frame (5) being rotatably connected to a bidirectional screw rod (6), and a reduction motor (8) being fixedly installed on one side of the inner wall of the sliding frame (5), the reduction motor (8) being used to drive the bidirectional screw rod (6) to rotate; The outer wall of the bidirectional screw (6) is threadedly connected to two threaded sleeves (7), and the two threads on the outer wall of the bidirectional screw (6) are opposite and symmetrically arranged; The top end of each threaded sleeve block (7) is fixedly connected to a transverse protection plate (9), the top end of the transverse protection plate (9) is fixedly mounted with a transverse pull plate (10), and a torque sensor (11) is fixedly mounted on one end of the bidirectional screw (6); A longitudinal precise anti-overturning mechanism is provided above the sliding frame (5); The upper surface of the counterweight support beam (1) is provided with a multi-directional overturning detection component.

2. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: The output end of the reduction motor (8) is fixedly connected to the bidirectional screw (6), and the outer walls of the two threaded sleeves (7) and the inner wall of the slide frame (5) 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 (10) and the lower scaffold (2).

4. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: A support block (12) is installed on one side of the outer wall of the torque sensor (11); the sliding frame (5) and the torque sensor (11) are fixedly connected to the support block (12); and the torque sensor (11) is divided into a housing and a sensing end; The sensing end of the torque force sensor (11) is rotationally connected to the sliding frame (5).

5. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: A controller (13) is fixedly mounted on one side of the counterweight support beam (1), and a mounting base plate (14) is fixedly connected to the bottom end of each lower scaffold (2).

6. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: A large-span frame plate (15) is installed at the top of the upper scaffold (4), and the two upper scaffolds (4) are fixedly connected to the large-span frame plate (15); Two inclined frames (16) are provided above the counterweight support beam (1), and the two inclined frames (16) are fixedly connected to the large-span frame plate (15).

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 (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 mounted on the lower surface of the support frame (17); a push pressure sensor (19) is fixedly connected to the output end of the linkage electric cylinder (18); and a hinged push block (20) is fixedly mounted on one side of the push pressure sensor (19); The inner wall of the hinged push block (20) is fixedly connected to two connecting shafts (21), the outer wall of each connecting shaft (21) is rotatably connected to a sleeve shaft (22), and the inner wall of the sleeve shaft (22) is rotatably connected to a linkage rod (23) at a position away from the connecting shaft (21); The bottom end of the linkage rod (23) is fixedly connected to a hinged sleeve (24), and the two hinged sleeves (24) are slidably connected to the support frame (17). The top end of each hinged sleeve (24) is fixedly connected to a longitudinal pull plate (25), and the longitudinal pull plate (25) is slidably connected to the counterweight support beam (1). The inner wall of the hinged sleeve (24) is slidably connected to a guide rod (26), 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).

8. The large-span scaffolding combined anti-overturning device according to claim 7 is characterized in that: 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.

9. The large-span scaffolding combined anti-overturning device according to claim 1 is characterized in that: The multi-directional overturning detection assembly comprises an external frame plate (28) fixedly arranged on the upper surface of the counterweight support beam (1); The upper surface of the external frame plate (28) is fixedly connected to a guide frame (29), and the inner wall of the guide frame (29) is fixedly connected to a sliding shaft (30), the outer wall of the sliding shaft (30) is slidably connected to two sliding sleeves (31), and the sliding sleeves (31) are slidably connected to the guide frame (29); One side of each sliding sleeve block (31) is fixedly connected to a connecting block (32), one side of the connecting block (32) is fixedly mounted with a sensing pull rod (33), one end of the sensing pull rod (33) is fixedly mounted with a tension sensor (34), and the two tension sensors (34) are fixedly connected; The other side of each sliding sleeve block (31) is fixedly connected to a longitudinal sensing bar (35), and the longitudinal sensing bar (35) is slidably connected to the upper scaffold (4); A reinforcement frame (36) is provided on one side of the guide frame (29), and the reinforcement frame (36) is fixedly connected to the external frame plate (28); two transverse sensing strips (37) are slidably connected to the inner wall of the reinforcement frame (36); a support rod (38) is fixedly installed on one side of the inner wall of the reinforcement frame (36), and the two transverse sensing strips (37) are slidably connected to the support rod (38); One end of the transverse sensing strip (37) is fixedly connected to a pressure block (39), one side of the pressure block (39) is equipped with an inductive pressure sensor (40), and the inductive pressure sensor (40) is fixedly connected to the reinforcement frame (36).

10. The large-span scaffolding combined anti-overturning device according to claim 9 is characterized in that: The vertical cross-section of the longitudinal sensing strip (35) is rectangular, and the two longitudinal sensing strips (35) are symmetrically arranged with respect to the upper scaffold (4).

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