Safety early-warning protection device for crane operation

Abstract

The invention discloses a crane operation safety early warning protection device, and relates to the technical field of crane operation, the crane operation safety early warning protection device comprises a crane driving structure, the top of the side end of the crane driving structure is provided with a suspension arm mounting seat, the surface of the connecting end of the suspension arm mounting seat is provided with a telescopic end, and the interior of the telescopic end is slidably connected with an extension assembly; transmission adjusting assemblies are symmetrically arranged at the bottoms of the two ends of the extension assembly, and under the cooperation of the early warning assembly, the electronic warning assembly, the extension assembly and the transmission adjusting assemblies, the whole crane driving structure can be conveniently matched with an internal driving electrical control structure of the crane driving structure to work; the whole crane forms electrical automation operation under the action of the signal receiver and the PLC and the microprocessor which are arranged in the crane driving structure, real-time warning is performed on entered people and objects, and the whole crane slowly and safely stops operation under emergency treatment of a center console of the crane until the people and the objects are warned to leave and continues to perform hoisting operation. And the overall hoisting operation safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crane operations, and particularly to a safety warning and protection device for crane operations. Background Art

[0002] As a common lifting and handling machine, cranes are widely used in docks, construction sites, workshops, power and other places. Existing cranes usually include a boom and a hook. To enable the boom to drive the hook to move in two directions, namely horizontally and vertically, telescopic booms are mostly used in existing booms. The telescopic boom includes several nested support sleeves for use.

[0003] However, in the prior art, when conducting lifting operations for a long time, on-site workers generally focus their attention on the lifted object, which may cause their standing positions to be adjusted as the lifted object moves. When trying to better observe the state of the lifted object, they may unconsciously move under the crane boom. Once the lifted object falls off, it is easy to pose a safety hazard to on-site personnel. For example, a Chinese invention patent application with the patent number 201210481538.X and the patent name of a safety warning device for crane operations discloses a safety warning device for crane operations, which includes a single-chip microcomputer with an input module and an output module. In addition, the input module is connected to a rod head distance measuring sensor and a human body induction sensor under the boom, and the output module is connected to a voice module, and the voice module is connected to a speaker. When about to conduct a lifting operation, press this operation button, and the voice module will give corresponding voice prompts to remind relevant personnel to pay attention to safety; the output module is also connected to a flashing warning light. When the visibility is poor at night, if there is someone under the boom, the voice prompt and the red flashing warning light will be activated simultaneously to prompt the operator to leave quickly and eliminate safety hazards. Although there are voice prompts and red flashing lights for warning, which have the advantages of good safety warning for people and objects under the boom, good operation accuracy and safety, labor saving and time saving, and can improve work efficiency, etc., it cannot give real-time warnings to the people and objects entering, and cannot control the overall crane to stop operating. If people continue to move forward, there is an easy safety hazard.

[0004] A Chinese invention patent application with the patent number 201410308945.X and the patent name of a near-electric safety warning method for construction cranes discloses a near-electric safety warning method for construction cranes, and its steps are: ⑴ sensor installation; ⑵ alarm placement; ⑶ docking of the sensor and the alarm. The present invention samples through electrodes, converts the measured results into distance information, sends the collected electrical signals to the alarm through a remote network, and realizes alarm through sound, light, and electricity indication, with extremely high information recognition rate, and is a new safety technology product in safety facilities. The disadvantages of this prior art are: this patent cannot give real-time warnings to the people and objects entering, and cannot control the overall crane to stop operating. If people continue to move forward, there is an easy safety hazard.

[0005] The Chinese utility model patent with the patent application number 201520688382.1 and the patent name of an anti-electric shock safety warning device for a crane discloses an anti-electric shock safety warning device for a crane. The patent includes a transmitting device installed at the front end of the crane boom and a receiving device installed in the crane operator's cab. The transmitting device is used to sense strong electrical signals. When the transmitting device gradually approaches a live body and the distance reaches within the set range, the transmitting device emits a signal. After receiving the signal, the receiving device alarms to remind the operator that they are approaching a live device and stop the operation, achieving the purpose of safety warning. The voltage levels applicable to this set of devices are 10 kV, 35 kV, 110 kV, and 220 kV, and it uses a 2.4G wireless method for transmission. The communication distance can reach more than 200 meters without obstacles. The disadvantage of this prior art is that this patent is for reminder and warning purposes and also for achieving the purpose of safety warning, but it cannot control the overall crane to stop operating.

[0006] The Chinese invention patent application with the patent application number 202010873718.7 and the patent name of a safety monitoring and warning device for a crane discloses a patent of the present invention. When a heavy object suddenly falls, it can issue an emergency avoidance warning in advance to remind the construction workers below to avoid; the set detection module can automatically detect whether there is a cargo fall all day long, and at the same time, it can also prevent the influence of the oxide layer on the surface of the striking conductive column and the passive conductive column on the conductivity, improving the stability of detection; by setting a warning component, an alarm is issued in a pneumatic manner, so that there is no need to set a large battery pack inside, thereby reducing the manufacturing and maintenance costs. The disadvantage of this prior art is that in the present invention, by setting a warning component and issuing an alarm in a pneumatic manner, it can only remind the people nearby to leave and cannot control the crane to stop running.

[0007] At the same time, the hoisting working environment is mostly outdoors. Traditionally, safety protection is carried out by pulling warning tapes or having special personnel for supervision. However, the vehicle noise is loud. When someone or something breaks in, due to the noise factor, the effect of shouting at the person or thing that breaks in is not obvious, which may lead to safety accidents. Therefore, it is necessary to propose a safety warning and protection device for crane operations. Summary of the Invention

[0008] The object of the present invention is to provide a safety warning and protection device for crane operations, so as to solve the problems raised in the above background technology. When performing hoisting operations for a long time, on-site workers generally focus their attention on the hoisted object, which will cause their standing positions to be adjusted as the hoisted object moves. When they move to a better position to observe the state of the hoisted object, they may unconsciously move under the crane boom. Once the hoisted object falls off, it is easy to pose a safety hazard to on-site audience personnel. At the same time, the hoisting working environment is mostly outdoors. Traditionally, safety protection is carried out by pulling warning tapes or having special personnel for supervision. However, the vehicle noise is large. When someone or something breaks in, due to the noise factor, the effect of shouting at the intruding person or object is not obvious, which may lead to safety accidents.

[0009] To achieve the above object, the present invention provides the following technical solution: A safety warning and protection device for crane operations, including a crane driving structure. At the top of the side end of the crane driving structure, a boom mounting seat is installed. On the connecting end surface of the boom mounting seat, a telescopic end is provided. Inside the telescopic end, an extension component is slidably connected. At the bottom of both ends of the extension component, transmission adjustment components are symmetrically arranged. In the middle end of the transmission adjustment components, a warning component is installed. On the periphery of the crane driving structure, an electronic warning component is installed. At the bottom of the boom mounting seat, a rotating structure is installed. At the bottom of the rotating structure, a steering driving structure is connected. The steering driving structure is installed inside the crane driving structure. On the surface of the rotating structure, a signal receiver is installed; The warning component includes a double-axis pneumatic cylinder frame. At the bottom of the double-axis pneumatic cylinder frame, a driving telescopic shaft column is connected. At the bottom of the driving telescopic shaft column, two groups of swing arm frames are installed. On the side surface of one group of swing arm frames, an arc groove is opened but not penetrated. On the surface of the other group of swing arm frames, a notch is penetrated. Inside the notch and the arc groove, a rotating shaft arm is rotatably connected. At the side end of the rotating shaft arm, a swing arm is connected. On the side of the swing arm, a transmission swing rod is hinged. On the side of the transmission swing rod, a servo motor is installed. At the bottom side of the rotating shaft arm, a side frame is installed. At the center of the bottom of the side frame, a rotating shaft frame is installed. At both ends of the rotating shaft frame, warning plates are inserted.

[0010] Preferably, the transmission adjustment component includes a mounting sheet metal. Inside the mounting sheet metal, a rotating shaft is hinged. At the side end of the rotating shaft, an angle control motor is provided. At the side of the rotating shaft, a fitting inclined plate is hinged.

[0011] Preferably, at both the left and right ends of the rotating shaft, adjustment driving arms are connected and installed through first connection blocks. At the side end of the adjustment driving arm, a force adjustment rotating column is connected through a second connection block. At the side end of the force adjustment rotating column, an adjustment frame is installed. On the surface of the adjustment frame, an installation groove is provided.

[0012] Preferably, sliding double guide columns are installed inside the installation groove, a moving double groove block is slidably connected to the outside of the sliding double guide columns, and a stress rod is connected to the side of the moving double groove block.

[0013] Preferably, the top end of the stress rod is tightly connected with a folding rod, rotating connection seats are sleeved on the left and right ends of the outer circumference of the folding rod, and a directional telescopic rod is tightly connected to the side of the rotating connection seat.

[0014] Preferably, the extension assembly includes an extension connecting frame, sliding guide rods are installed at both the left and right ends of the extension connecting frame, sliding connection blocks are installed on the sides of the sliding guide rods, a brake controller is installed on the side of the sliding connection block, a transmission roller is installed at the side end of the brake controller, the transmission roller is slidably connected with the telescopic end, and the transmission roller is connected with the internal driving transmission structure of the crane driving structure.

[0015] Preferably, a groove end is formed on the side of the extension connecting frame, two groups of installation guide grooves are symmetrically formed on the inner wall surface of the groove end, a lead screw is installed inside one group of installation guide grooves, and a driving motor is connected to the side end of the lead screw.

[0016] Preferably, a stabilizing sliding column is installed inside the other group of installation guide grooves, displacement blocks are connected to the outer sides of the stabilizing sliding column and the lead screw respectively through conduction columns, a docking groove is formed on the bottom wall surface of the extension connecting frame, the docking groove is docked with the side end of the folding rod, and the conduction column and the directional telescopic rod are clamped and rotatably connected.

[0017] Preferably, multiple groups of electronic warning components can be arranged, and multiple groups of electronic warning components form a warning area with a radius around the crane driving structure. The electronic warning component includes a warning column, a drawstring end is installed at the top end of the warning column, an elastic drawstring end is arranged on the side of the drawstring end, the elastic drawstring end is buckled at the head and tail, a laser refractive index sensor is installed on the side of the drawstring end, and the laser refractive index sensor is signal-connected to a warning board and a signal receiver through a wireless end.

[0018] Preferably, a downward pressing and locking structure is sleeved and slid on the outer bottom end of the warning column, anti-fixing pins are installed on the sides of the downward pressing and locking structure, a control pedal is tightly connected to the side of the downward pressing and locking structure, and a ground fixing piece is tightly installed at the bottom end of the warning column.

[0019] Compared with the prior art, the beneficial effects of the present invention are: In the present invention, by starting the double-axis pneumatic cylinder frame with the cooperation of the early warning component, it is convenient to drive the telescopic shaft column, two sets of swing arm frames, servo motors, transmission swing rods, swing arms and rotating shaft arms to carry out sequential transmission, so that the rotating shaft arm can perform arc trajectory operation under the cooperation of the notch and the arc groove, and then drive the side frame, the rotating shaft frame and the warning plate to adjust, and then under the action of the rotating shaft frame, the rotating shaft frame is composed of a two-way rotating shaft and a forward and reverse motor, and the warning plate is driven by the rotating shaft frame to adjust the forward and reverse angles inside the side frame, so as to warn people or objects entering the construction area, and the whole cooperates with the internal driving electrical control structure of the crane driving structure to operate, so that the whole forms electrical automation operation under the action of the signal receiver and the built-in PLC controller and microprocessor of the crane driving structure, and gives real-time warnings to people and objects entering, and under the emergency treatment of the crane central console, the whole crane performs a slow and safe stop operation until the people and objects are warned to leave, and then the hoisting operation is continued, thereby improving the overall hoisting operation safety.

[0020] 2. In the present invention, by cooperating with the extension component and the transmission adjustment component, it is convenient to utilize the internal driving transmission structure of the crane driving structure so that the extension connecting frame can be telescopically operated inside the telescopic end through the cooperation of the transmission roller. When the extension connecting frame is extended to the preset distance on the circumferential side, the directional telescopic rod is used to drive the folding rod to form the Z-axis adjustment position under the cooperation of the driving motor, the screw rod, the stabilizing sliding column, the conducting column and the groove end. Then, under the cooperation of the signal receiver and the angle control motor, the angle control motor drives the rotating shaft to rotate and adjust, so that the interlocking inclined plate rotates 60 degrees. Synchronously, under the cooperation of the adjustment driving arm, the stability of the rotation adjustment of the interlocking inclined plate is guaranteed. Then The force-adjusting rotating column rotates synchronously under the action of the motor installed at the side end, so that the adjusting frame expands from the inside of the groove end opened on the surface of the embedded inclined plate, so that the adjusting frame, the embedded inclined plate and the bottom wall of the extended connecting frame form a triangular structure, and drive the force-bearing rod to perform Y-axis vertical adjustment at the center ends of the adjusting frames at both ends. When upward, the force-bearing rod and the docking groove are docked and clamped, and the overall adjusting frame, the embedded inclined plate and the extended connecting frame are folded with each other to form a storage structure. Then, under the action of the folding rod, it is convenient to further transmit the action of the force-bearing rod, so that with the cooperation of the rotating connecting seat and the directional telescopic rod, it is convenient to perform rotation adjustment under the action of the stable sliding column, thereby improving the adaptability of the overall structure.

[0021] 3. In the present invention, with the cooperation of the electronic warning component, it is convenient to place multiple warning columns around the crane driving structure to form a warning area with a radius of 3 meters. The elastic strap ends are formed into a head-to-tail buckle, and then the control pedal can be stepped on to drive the downward pressing and locking structure to overlap the grounding member, so that the anti-fixing pin and the grounding member are fixed against each other. Furthermore, with the cooperation of the grounding member, the warning column is fixed on the ground. When reinstalling, only need to lift the control pedal to separate the anti-fixing pin and the grounding member, which is convenient for the overall installation and use, improving the overall operation efficiency. And with the cooperation of the laser refractive index sensor, an electronic warning circle is formed synchronously according to the placement positions of multiple warning columns to monitor the operation in real time, further ensuring the safety of the hoisting operation construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of a crane operation safety warning and protection device according to the present invention; Figure 2 It is an installation position structural schematic diagram of the steering drive structure and the rotating structure in a crane operation safety warning and protection device according to the present invention; Figure 3 It is a partial structural schematic diagram of an extension component in a crane operation safety warning and protection device according to the present invention; Figure 4 It is an installation position structural schematic diagram of the extension component in a crane operation safety warning and protection device according to the present invention; Figure 5 It is an installation position structural schematic diagram of the docking groove in a crane operation safety warning and protection device according to the present invention; Figure 6 It is a structural schematic diagram of a transmission adjustment component in a crane operation safety warning and protection device according to the present invention; Figure 7 It is a partial structural schematic diagram of a warning component in a crane operation safety warning and protection device according to the present invention; Figure 8 It is a structural schematic diagram of a warning component in a crane operation safety warning and protection device according to the present invention; Figure 9 It is a structural schematic diagram of an electronic warning component in a crane operation safety warning and protection device according to the present invention.

[0023] In the figure: 1. Crane drive structure; 2. Electronic warning component; 21. Warning post; 22. Drawstring end; 23. Elastic strap end; 24. Laser refractive index sensor; 25. Press-down locking structure; 26. Anti-fixing pin; 27. Control pedal; 28. Ground fixing part; 3. Boom mounting seat; 4. Extension component; 41. Extension connecting frame; 42. Sliding guide rod; 43. Sliding connecting block; 44. Driving roller; 45. Brake controller; 46. Groove end; 47. Driving motor; 48. Installation guide groove; 49. Lead screw; 490. Stable sliding column; 491. Docking groove; 5. Transmission adjustment component; 51. Installation sheet metal; 52. Rotating shaft; 53. Angle control motor; 54. Adjustment driving arm; 55. Force adjustment rotating column; 56. Fitting bevel plate; 57. Adjustment frame; 58. Installation groove; 59. Sliding double guide column; 591. Moving double groove block; 592. Force receiving rod; 593. Folding rod; 594. Rotating connection seat; 595. Directional telescopic rod; 6. Steering drive structure; 7. Rotating structure; 8. Telescopic end; 9. Early warning component; 91. Double-axis pneumatic cylinder frame; 92. Driving telescopic shaft column; 93. Swing arm frame; 94. Servo motor; 95. Swing arm; 96. Rotating shaft arm; 97. Arc groove; 98. Side frame; 99. Rotating shaft frame; 990. Warning board. Detailed implementation mode

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0025] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Example 1

[0027] Reference Figures 1-9 As shown: a crane operation safety warning protection device, including a crane drive structure 1, a boom mounting seat 3 is installed on the top of the side end of the crane drive structure 1, a telescopic end 8 is provided on the connecting end surface of the boom mounting seat 3, an extension component 4 is slidably connected inside the telescopic end 8, transmission adjustment components 5 are symmetrically arranged at the bottom of both ends of the extension component 4, an early warning component 9 is installed at the middle end of the transmission adjustment component 5, an electronic warning component 2 is installed on the surrounding side of the crane drive structure 1, a rotating structure 7 is installed at the bottom of the boom mounting seat 3, a steering drive structure 6 is connected to the bottom of the rotating structure 7, the steering drive structure 6 is installed inside the crane drive structure 1, and a signal receiver is installed on the surface of the rotating structure 7; the early warning component 9 includes a double-axis pneumatic cylinder frame 91, A driving telescopic shaft column 92 is connected to the bottom of the double-axis pneumatic cylinder frame 91, and two groups of swing arm frames 93 are installed at the bottom of the driving telescopic shaft column 92. An arc groove 97 is opened on the side surface of one group of swing arm frames 93 but not penetrated, and a notch is opened on the surface of the other group of swing arm frames 93. A rotating shaft arm 96 is rotatably connected inside the notch and the arc groove 97. A swing arm 95 is connected to the side end of the rotating shaft arm 96. A transmission rocker rod is hinged on the side of the swing arm 95. A servo motor 94 is installed on the side frame of the transmission rocker rod. A side frame 98 is installed on the bottom side of the rotating shaft arm 96. A rotating shaft frame 99 is installed at the bottom center end of the side frame 98. Warning plates 990 are inserted at both ends of the rotating shaft frame 99. The warning plate 990 consists of a warning device, color warning text and a red warning light.

[0028] When hoisting operations are carried out, the double-axis pneumatic cylinder frame 91 is started, so that the driving telescopic shaft column 92 drives the two groups of swing arm frames 93 to extend. Then the servo motor 94 is started, and the rotation operation of the servo motor 94 drives the transmission swing rod, swing arm 95 and rotating shaft arm 96 to be transmitted in sequence, so that the rotating shaft arm 96 performs an arc-shaped trajectory operation under the cooperation of the notch and arc groove 97, thereby driving the side frame 98, rotating shaft frame 99 and warning board 990 to be adjusted. Then under the action of the rotating shaft frame 99, the rotating shaft frame 99 is composed of a two-way rotating shaft and a forward and reverse motor, and the rotating shaft frame 99 is used to drive the warning board 990 to perform forward and reverse angle adjustment inside the side frame 98, so as to facilitate warning operations on people or objects entering the construction area. With the cooperation of the extension component 4, transmission adjustment component 5 and warning component 9 under the rotating structure 7 and steering drive structure 6, real-time warning is carried out on the people and objects entering. And under the emergency treatment of the crane console, the whole crane performs a slow and safe stop operation. Until the people and objects are warned to leave, the hoisting operation is continued, improving the safety of the overall hoisting operation.

[0029] According to Figures 1-7 As shown, the transmission adjustment component 5 includes a mounting sheet metal piece 51. A rotating shaft 52 is hinged inside the mounting sheet metal piece 51. An angle control motor 53 is arranged at the side end of the rotating shaft 52. A fitting inclined plate 56 is hinged to the side of the rotating shaft 52. By tightly connecting the bottom walls of the mounting sheet metal piece 51 and the extension connecting frame 41, when there are people or living things entering the construction range of the crane, the laser refractive index sensor 24 sends monitoring data to the signal receiver. After being fed back by the signal receiver, a control signal is sent to the angle control motor 53, so that the angle control motor 53 is started, and then the rotating shaft 52 is driven to rotate and adjust, so that the fitting inclined plate 56 rotates by 60 degrees. Embodiment 2

[0030] Basically the same as Embodiment 1. Further, according to Figures 1-7 As shown, adjustment drive arms 54 are connected and installed at the left and right ends of the rotating shaft 52 through first connection blocks. A force adjustment rotating column 55 is connected to the side end of the adjustment drive arm 54 through a second connection block. An adjustment frame 57 is installed at the side end of the force adjustment rotating column 55. Installation grooves 58 are formed on the surface of the adjustment frame 57. With the cooperation of the adjustment drive arm 54, the stability of the rotation adjustment of the fitting inclined plate 56 is ensured. Then the force adjustment rotating column 55 rotates synchronously under the action of the motor installed at the side end, so that the adjustment frame 57 expands from the inside of the groove end formed on the surface of the fitting inclined plate 56, facilitating the adjustment frame 57, the fitting inclined plate 56 and the bottom wall of the extension connecting frame 41 to form a triangular structure.

[0031] According to Figures 1-7As shown, a sliding double guide column 59 is installed inside the installation groove 58, and a movable double groove block 591 is slidably connected to the outside of the sliding double guide column 59, and a force rod 592 is connected to the side of the movable double groove block 591. Then, under the action of the force rod 592, the movable double groove block 591 can be slidably adjusted outside the sliding double guide column 59. Under the transmission action of the adjustment drive arm 54, the force rod 592 is convenient for the Y-axis vertical adjustment to be performed at the center end of the adjustment frame 57 at both ends. When upward, the force rod 592 and the docking groove 491 are docked and clamped, and the overall adjustment frame 57, the interlocking inclined plate 56 and the extension connecting frame 41 are folded with each other to form a storage structure.

[0032] according to Figures 1-7 As shown, the top end of the force-bearing rod 592 is fastened with a folding rod 593, and the left and right ends of the outer circumference of the folding rod 593 are sleeved with a rotating connecting seat 594, and the side of the rotating connecting seat 594 is fastened with a directional telescopic rod 595. Under the action of the folding rod 593, the action of the force-bearing rod 592 can be further transmitted, so that the overall operation of the subsequent early warning component 9 can be adjusted. In addition, with the cooperation of the rotating connecting seat 594 and the directional telescopic rod 595, it is convenient to perform rotation adjustment under the action of the stabilizing sliding column 490, thereby improving the adaptability of the overall structure. Example 3

[0033] Basically the same as the first embodiment, further, according to Figures 1-5 As shown, the extension component 4 includes an extension connecting frame 41, and sliding guide rods 42 are installed on the left and right ends of the extension connecting frame 41, and sliding connecting blocks 43 are installed on the sides of the sliding guide rods 42. A brake controller 45 is installed on the side of the sliding connecting block 43, and a transmission roller 44 is installed on the side end of the brake controller 45. The transmission roller 44 is slidably connected to the telescopic end 8, and the transmission roller 44 is connected to the internal driving transmission structure of the crane driving structure 1. By utilizing the connection of the transmission roller 44 and the internal driving transmission structure of the crane driving structure 1, the extension connecting frame 41 is telescopically operated inside the telescopic end 8, and the sliding connecting block 43 is slidably connected to the outside of the sliding guide rod 42. The brake controller 45 is used to control the sliding of the sliding connecting block 43, and the whole cooperates with the internal driving electrical control structure of the crane driving structure 1 to operate, so that the whole forms an electrical automation operation under the action of the signal receiver and the built-in PLC controller and microprocessor of the crane driving structure 1.

[0034] according to Figures 1-5As shown, a groove end 46 is provided on the side of the extension connecting frame 41. Two groups of installation guide grooves 48 are symmetrically provided on the inner wall surface of the groove end 46. A lead screw 49 is installed inside one group of installation guide grooves 48, and a drive motor 47 is connected to the side end of the lead screw 49. After the extension connecting frame 41 extends to a preset distance on the periphery, the drive motor 47 is started, and the drive motor 47 is used to rotate the lead screw 49, driving the subsequent stable sliding column 490 to be adjusted inside the groove end 46.

[0035] According to Figures 1-5 As shown, a stable sliding column 490 is installed inside the other group of installation guide grooves 48. Conductive columns are connected to the outer sides of the stable sliding column 490 and the lead screw 49 through displacement blocks. A docking groove 491 is provided on the bottom wall surface of the extension connecting frame 41, and the docking groove 491 is docked with the side end of the folding rod 593. The conductive column and the directional expansion link 595 are clamped and rotatably connected. When the lead screw 49 is operating, the stable sliding column 490 is synchronously displaced on the side of the conductive column, forming a synchronous adjustment structure. Under the displacement operation of the stable sliding column 490, the folding rod 593 can be driven by the directional expansion link 595 to perform an operation to adjust the orientation in the Z-axis, and the subsequent warning component 9 is synchronously adjusted and controlled. Embodiment 4

[0036] Basically the same as Embodiment 1. Further, according to Figure 1 and Figure 9As shown in the figure, multiple sets of electronic warning components 2 can be set. The multiple sets of electronic warning components 2 are located on the peripheral side of the crane driving structure 1 to form a warning area with a radius. The electronic warning component 2 includes a warning post 21. At the top of the warning post 21, a drawstring end 22 is installed. On the side of the drawstring end 22, an elastic strap end 23 is provided. The elastic strap end 23 forms a buckle at its head and tail. On the side of the drawstring end 22, a laser refractive index sensor 24 is installed. The laser refractive index sensor 24 is signal-connected to a warning board 990 and a signal receiver through a wireless end. Before the hoisting operation, the multiple sets of warning posts 21 are placed on the peripheral side of the crane driving structure 1 to form a warning area with a radius of 3 meters. The elastic strap is drawn out from the inside of the drawstring end 22 by using the elastic strap end 23 and forms a head-to-tail buckle with the multiple sets of elastic strap ends 23. And with the cooperation of the laser refractive index sensor 24, an electronic warning circle is formed synchronously according to the placement positions of the multiple sets of warning posts 21. When a person or an object privately removes the elastic strap end 23 and enters the operation area, the laser refractive index sensor 24 is synchronously under the action of the signal receiver and feeds back to the microprocessor and PLC controller built in the crane driving structure 1, so that the above-mentioned extension component 4, transmission adjustment component 5 and warning component 9, under the cooperation of the rotating structure 7 and the steering driving structure 6, give real-time warnings to the entering person or object. And under the emergency handling of the crane console, the whole crane performs a slow and safe stop operation until the person or object is warned to leave and then the hoisting operation continues, improving the safety of the overall hoisting operation. Embodiment 5

[0037] Basically the same as Embodiment 1. Further, according to Figure 1 and Figure 9 As shown in the figure, a pressing and locking structure 25 is sleeved and slid on the outer bottom end of the warning post 21. Fixing pins 26 are installed on the sides of the pressing and locking structure 25. A control pedal 27 is tightly connected to the side of the pressing and locking structure 25. A grounding part 28 is tightly installed at the bottom end of the warning post 21. When the multiple sets of warning posts 21 are placed in sequence, the staff can step on the control pedal 27 to drive the pressing and locking structure 25 to coincide with the grounding part 28, so that the fixing pins 26 are pressed against the grounding part 28. Then, with the cooperation of the grounding part 28, the warning post 21 is fixed on the ground. When reinstalling, just lift the control pedal 27 to separate the fixing pins 26 from the grounding part 28, which is convenient for the overall installation and use and improves the overall operation efficiency.

[0038] The wiring diagrams of the laser refractive index sensor 24, drive motor 47, angle control motor 53, double-axis pneumatic cylinder rack 91, servo motor 94, signal receiver, built-in microprocessor, and PLC controller in the present invention belong to the common general knowledge in the art. Their working principles are already known technologies, and their models are selected according to actual use. Therefore, the control methods and wiring arrangements of the laser refractive index sensor 24, drive motor 47, angle control motor 53, double-axis pneumatic cylinder rack 91, servo motor 94, signal receiver, built-in microprocessor, and PLC controller will not be explained in detail.

[0039] Usage method and working principle of this device: First, when carrying out hoisting operations, the staff place multiple warning columns 21 around the crane drive structure 1 to form a warning area with a radius of 3 meters. The elastic strap end 23 is used to draw the elastic strap out of the draw end 22 and form a head-to-tail buckle with multiple elastic strap ends 23. Then, the control pedal 27 can be stepped on to drive the downward pressure locking structure 25 to coincide with the ground fixing member 28, so that the abutting locking pin 26 abuts against the ground fixing member 28. Furthermore, the warning column 21 is fixed on the ground in cooperation with the ground fixing member 28. When reinstalling, just lift the control pedal 27 to separate the abutting locking pin 26 from the ground fixing member 28, which is convenient for the overall installation and use, improving the overall operation efficiency. And with the cooperation of the laser refractive index sensor 24, an electronic warning circle is formed synchronously according to the placement positions of multiple warning columns 21. When a person or object privately removes the elastic strap end 23 and enters the operation area, the laser refractive index sensor 24 synchronously feeds back to the microprocessor and PLC controller built in the crane drive structure 1 under the action of the signal receiver. Then, the extension component 4, the transmission adjustment component 5 and the warning component 9, under the cooperation of the rotation structure 7 and the steering drive structure 6, give real-time warnings to the entering person or object. And under the emergency treatment of the crane console, the whole crane performs a slow and safe stop operation. Until the person or object is warned to leave, the hoisting operation continues, improving the safety of the overall hoisting operation. Then, when there is a person or living thing entering the construction range of the crane, the laser refractive index sensor 24 sends monitoring data to the signal receiver. After being fed back by the signal receiver, the microprocessor and PLC controller built in the crane drive structure 1 perform control instruction operations. It is convenient for the internal drive transmission structure of the crane drive structure 1 to make the extension connecting frame 41 perform telescopic operations inside the telescopic end 8 in cooperation with the transmission roller 44, so that the sliding connecting block 43 is slidably connected outside the sliding guide rod 42. The sliding of the sliding connecting block 43 is controlled by the brake controller 45. The whole cooperates with the internal drive electrical control structure of the crane drive structure 1 to perform operations. Thus, the whole forms an electrical automation operation under the action of the signal receiver and the PLC controller and microprocessor built in the crane drive structure 1. When the extension connecting frame 41 extends to a preset distance on the periphery, the drive motor 47 is started. The drive motor 47 is used to rotate the lead screw 49, and synchronously displace the stable sliding column 490 on the side of the conduction column, which is convenient to drive the subsequent stable sliding column 490 to be adjusted inside the groove end 46 in cooperation with the lead screw 49 and the conduction column. During the displacement operation of the stable sliding column 490, the Z-axis adjustment orientation can be formed by driving the operation of the folding rod 593 with the directional telescopic rod 595. Then, after being fed back by the signal receiver, a control signal is sent to the angle control motor 53 to start the angle control motor 53, which then drives the rotating shaft 52 to rotate and adjust, so that the fitting bevel plate 56 rotates by 60 degrees. Synchronously, with the cooperation of the adjustment drive arm 54, the stability of the rotation adjustment of the fitting bevel plate 56 is ensured.Subsequently, the force-bearing adjusting rotating column 55 rotates synchronously under the action of the motor installed at the side end, causing the adjusting frame 57 to expand from the inside of the groove end opened on the surface of the fitting inclined plate 56, facilitating the formation of a triangular structure by the bottom walls of the adjusting frame 57, the fitting inclined plate 56, and the extended connecting frame 41. Moreover, it drives the force-bearing rod 592 to perform Y-axis vertical adjustment at the central ends of the two adjusting frames 57. When moving upward, the force-bearing rod 592 is butted and clamped with the docking groove 491. The overall adjusting frame 57, the fitting inclined plate 56, and the extended connecting frame 41 are folded with each other to form a storage structure. Then, under the action of the folding rod 593, it is convenient to further conduct the action of the force-bearing rod 592, so that with the cooperation of the rotating connecting seat 594 and the directional telescopic rod 595, it is convenient to perform rotational adjustment under the action of the stable sliding column 490, improving the adaptability of the overall structure. When the folding rod 593 is adjusted, it drives the double-axis pneumatic cylinder frame 91 to perform synchronous operation. After that, the double-axis pneumatic cylinder frame 91 is started, causing the driving telescopic shaft column 92 to drive the two swing arm frames 93 to extend. Then, the servo motor 94 is started, and the rotation operation of the servo motor 94 drives the transmission swing rod, the swing arm 95, and the rotating shaft arm 96 to be transmitted in sequence, so that the rotating shaft arm 96 performs an arc-shaped trajectory operation under the cooperation of the slot and the arc groove 97, thereby driving the side frame 98, the rotating shaft frame 99, and the warning board 990 to be adjusted. Then, under the action of the rotating shaft frame 99, the rotating shaft frame 99 is composed of a two-way rotating shaft and a positive and negative motor, and the rotating shaft frame 99 drives the warning board 990 to perform positive and negative angle adjustment inside the side frame 98, facilitating the warning operation for people or objects entering the construction area.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacement for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety warning and protection device for crane operation, including a crane driving structure (1), Characterized in that: A boom mounting seat (3) is installed on the top of the side end of the crane driving structure (1). An expansion end (8) is provided on the connecting end surface of the boom mounting seat (3). An extension component (4) is slidably connected inside the expansion end (8). Transmission adjustment components (5) are symmetrically arranged at the bottoms of both ends of the extension component (4). A warning component (9) is installed at the middle end of the transmission adjustment component (5). An electronic warning component (2) is installed on the periphery of the crane driving structure (1). A rotating structure (7) is installed at the bottom of the boom mounting seat (3). A steering driving structure (6) is connected to the bottom of the rotating structure (7). The steering driving structure (6) is installed inside the crane driving structure (1). A signal receiver is installed on the surface of the rotating structure (7); The warning component (9) includes a double-axis pneumatic cylinder frame (91). A driving telescopic shaft column (92) is connected to the bottom of the double-axis pneumatic cylinder frame (91). Two groups of swing arm frames (93) are installed at the bottom of the driving telescopic shaft column (92). An arc groove (97) is provided on the side surface of one group of swing arm frames (93) but not penetrating through. A notch is provided through the surface of the other group of swing arm frames (93). A rotating shaft arm (96) is rotatably connected inside the notch and the arc groove (97). A swing arm (95) is connected to the side end of the rotating shaft arm (96). A transmission swing rod is hinged to the side of the swing arm (95). A servo motor (94) is installed on the side of the transmission swing rod. A side frame (98) is installed on the bottom side of the rotating shaft arm (96). A rotating shaft frame (99) is installed at the center of the bottom of the side frame (98). Warning plates (990) are inserted at both ends of the rotating shaft frame (99).

2. The safety warning and protection device for crane operation according to claim 1, Characterized in that: The transmission adjustment component (5) includes a mounting sheet metal piece (51). A rotating shaft (52) is hinged inside the mounting sheet metal piece (51). An angle control motor (53) is provided at the side end of the rotating shaft (52). A fitting inclined plate (56) is hinged to the side of the rotating shaft (52).

3. The safety warning and protection device for crane operation according to claim 2, Characterized in that: Adjustment driving arms (54) are connected and installed at the left and right side ends of the rotating shaft (52) through first connection blocks. A force adjustment rotating column (55) is connected to the side end of the adjustment driving arm (54) through a second connection block. An adjustment frame (57) is installed at the side end of the force adjustment rotating column (55). Mounting grooves (58) are provided on the surface of the adjustment frame (57).

4. The safety warning and protection device for crane operation according to claim 3, Characterized in that: Inside the installation groove (58), a sliding double guide post (59) is installed. A moving double groove block (591) is slidably connected to the outside of the sliding double guide post (59). A force receiving rod (592) is connected to the side of the moving double groove block (591).

5. The crane operation safety warning and protection device according to claim 4, characterized in that: The top end of the force receiving rod (592) is fixedly connected with a folding rod (593). Rotating connection seats (594) are sleeved on the left and right ends of the outer circumference of the folding rod (593). A directional telescopic rod (595) is fixedly connected to the side of the rotating connection seat (594).

6. The crane operation safety warning and protection device according to claim 1, characterized in that: The extension assembly (4) includes an extension connection frame (41). Sliding guide rods (42) are installed at both the left and right ends of the extension connection frame (41). A sliding connection block (43) is installed on the side of the sliding guide rod (42). A brake controller (45) is installed on the side of the sliding connection block (43). A transmission roller (44) is installed at the side end of the brake controller (45). The transmission roller (44) is slidably connected to the telescopic end (8), and the transmission roller (44) is connected to the internal drive transmission structure of the crane drive structure (1).

7. The crane operation safety warning and protection device according to claim 6, characterized in that: A groove end (46) is formed on the side of the extension connection frame (41). Two groups of installation guide grooves (48) are symmetrically formed on the inner wall surface of the groove end (46). A lead screw (49) is installed inside one group of the installation guide grooves (48). A drive motor (47) is connected to the side end of the lead screw (49).

8. The crane operation safety warning and protection device according to claim 7, characterized in that: A stabilizing sliding column (490) is installed inside the other group of installation guide grooves (48). Conduction columns are connected to the outer sides of the stabilizing sliding column (490) and the lead screw (49) through displacement blocks. A docking groove (491) is formed on the bottom wall surface of the extension connection frame (41). The docking groove (491) is docked with the side end of the folding rod (593). The conduction column and the directional telescopic rod (595) are clamped and rotatably connected.

9. The crane operation safety warning and protection device according to claim 1, characterized in that: The electronic warning components (2) can be set in multiple groups. Multiple groups of the electronic warning components (2) form a warning area with a radius around the crane drive structure (1). The electronic warning component (2) includes a warning column (21). A drawstring end (22) is installed at the top end of the warning column (21). An elastic drawstring end (23) is arranged on the side of the drawstring end (22). The elastic drawstring end (23) is buckled at the head and tail. A laser refractive index sensor (24) is installed on the side of the drawstring end (22). The laser refractive index sensor (24) is signal-connected to the warning board (990) and the signal receiver through a wireless end.

10. The safety warning and protection device for crane operation according to claim 9, characterized in that: a downward pressing and locking structure (25) is sleeved and slidably arranged at the outer bottom end of the warning column (21), anti-fixing pins (26) are installed on the side edges of the downward pressing and locking structure (25), a control pedal (27) is fixedly connected to the side edge of the downward pressing and locking structure (25), and a grounding member (28) is fixedly installed at the bottom end of the warning column (21).

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