Safety net automatic detection device based on intelligent sensor

Abstract

The invention relates to the technical field of safety net detection, and discloses a safety net automatic detection device based on an intelligent sensor, and the device comprises a rear supporting arm which is used for fixing the rear side of a safety net, and a front supporting arm which is arranged at the front side of the rear supporting arm and is used for fixing the front side of the safety net. A fixing hoop is fixedly connected to the rear side face of the front supporting arm, a fixing rod is fixedly connected to the inner surface of the fixing hoop, a fixed sliding rod is fixedly connected to the left end of the fixing rod, and a sleeve rod is slidably connected to the surface of the fixed sliding rod. A sleeve rod drives a twisting ring and a hook to move leftwards, the transverse stretching area of the device is increased, the safety net is transversely pulled, and then force is transmitted to a transverse tension sensor, so that the tensile force which can be borne by the safety net is detected, and the quality of the safety net is ensured to have no problem.

Description

Technical Field

[0001] The present invention relates to the technical field of safety net detection, and particularly to an automatic safety net detection device based on intelligent sensors. Background Art

[0002] A safety net is a protective device used to prevent people or objects from falling from heights and reduce the impact damage of falls. It is widely used in fields such as construction, industry, and sports. It is woven into a mesh structure by high-strength materials and can catch falling people or objects, reducing accident risks. Before the safety net is put into use, its quality needs to be detected. An automatic safety net detection device can perform impact and tensile tests on the safety net to quickly test the quality of the safety net and prevent inferior safety nets from being put into use. However, in the prior art, it is usually difficult to detect safety nets with different lengths and widths.

[0003] The patent with the publication number CN104568361B discloses an automatic safety net detection device. The patent includes a bracket, an impact hammer, and an automatic tensioning mechanism for hanging and adjusting the tension of the safety net. The impact hammer is suspended on the bracket through a hoisting mechanism and can move up and down. The automatic tensioning mechanism includes a frame fixed to the bracket. Hooks are installed around the frame, and the hooks on at least two adjacent sides of the frame are movable hooks. Each movable hook is connected to a tension device. Except for the manual operations of hanging and removing the net, all are automated, improving efficiency and accuracy, and being very suitable for the detection of safety nets. Although this patent solves the above problems, there are still problems such as unidirectional stretching of the safety net during detection, relatively one-sided detection effects, and difficulty in detecting safety nets with different lengths and widths. Therefore, an automatic safety net detection device based on intelligent sensors is proposed to solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic safety net detection device based on intelligent sensors for the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: an automatic safety net detection device based on intelligent sensors, comprising: A rear support arm for fixing the rear side of the safety net; A front support arm provided in front of the rear support arm for fixing the front side of the safety net. A fixing hoop is fixedly connected to the rear side surface of the front support arm. A fixing rod is fixedly connected to the inner surface of the fixing hoop. A fixed sliding rod is fixedly connected to the left end of the fixing rod. A sleeve rod is slidably connected to the surface of the fixed sliding rod; Balancing device, the balancing device is arranged on the front side of the rear support arm, and the rear support arm is used to make the device more balanced and stable when adjusting the detection area; Adjusting device, the adjusting device is arranged above the rear support arm, and the adjusting device is used to adjust the position of the impact device following the change of the detection area.

[0006] As a further technical solution, the rear support arm includes; Twisting ring, the twisting ring is hinged on the circumferential surface of the fixed rod, a hook is fixedly connected to the circumferential surface of the twisting ring, and the hook is used to test and hook the safety net; Contact plate, the contact plate is fixedly connected to the circumferential surface of the sleeve rod; Electric telescopic rod, the fixed end of the electric telescopic rod is fixedly connected to the side surface of the rear support arm; Support plate, the support plate is arranged on the front side surface of the rear support arm, and a horizontal tension sensor is fixedly connected to the left side surface of the support plate; Support rod, the support rod is fixedly connected to the lower surface of the electric telescopic rod, and a longitudinal tension sensor is fixedly connected to the front end of the support rod.

[0007] As a further technical solution, the rear support arm further includes; Linear motor, the linear motor is arranged on the front side of the rear support arm, and a push rod is fixedly connected to the moving end of the linear motor; Transmission cross bar, the transmission cross bar is fixedly connected to the front end of the push rod, and moving sliding rods are fixedly connected to both ends of the transmission cross bar.

[0008] As a further technical solution, the fixed hoop is fixedly connected to the front side surface of the rear support arm, the outer surface of the sleeve rod is slidably connected to the inner surface of the fixed hoop, the twisting ring is hinged to the circumferential surface of the sleeve rod, torsion springs are arranged at the hinge joints of the twisting ring with the fixed rod and the sleeve rod, the left free end of the electric telescopic rod is fixedly connected to the right side surface of the contact plate, and the front end of the moving sliding rod is fixedly connected to the rear side surface of the front support arm.

[0009] As a further technical solution, the balancing device includes; Square pipe, the square pipe is fixedly connected to the front side surface of the rear support arm, and a fixed cross bar is fixedly connected to the side surface of the square pipe; Inclined rod, the inclined rod is fixedly connected to the front side surface of the rear support arm, and a balance frame is fixedly connected to the top end of the inclined rod; Sliding cross beam, the sliding cross beam is fixedly connected to the top end of the front support arm.

[0010] As a further technical solution, the balancing device further includes; A convex plate is fixedly connected to the upper and lower sides of the rear end of the movable sliding rod. A convex shaft is slidably connected to the inner surface of the convex plate. A limiting column is fixedly connected to the bottom end of the convex shaft. A dial plate is fixedly connected to the circumferential surface of the convex shaft. A lock hole is opened on the upper surface of the square tube. A side through groove is opened on the side surface of the square tube. A lower through groove is opened on the lower surface of the square tube.

[0011] As a further technical solution, the movable sliding rod is slidably connected to the inner surface of the square tube. The balance frame is fixedly connected to the top end of the rear support arm. The upper surface of the sliding cross beam is slidably connected to the lower surface of the balance frame. The limiting column slidably penetrates through the upper surface of the convex plate and extends out of the lower surface of the convex plate. The convex shaft abuts against the inner surface of the lock hole. The dial plate abuts against the inner surface of the side through groove. The limiting column abuts against the inner surface of the lower through groove. The convex plate is slidably connected to the inner surface of the square tube. A spring is arranged between the bottom end of the convex shaft and the upper surface of the convex plate.

[0012] As a further technical solution, the adjusting device includes; A first fixed pulley is rotatably connected to the lower surface of the balance frame. A sliding plate is arranged on the front side of the first fixed pulley. A second fixed pulley is rotatably connected to the lower surface of the sliding plate.

[0013] As a further technical solution, the adjusting device further includes; A clamping plate is fixedly connected to the upper surface of the sliding cross beam. A limiting through groove is opened on the lower surface of the balance frame. A slide rail is fixedly connected to the inner surface of the balance frame. A cable hook is fixedly connected to the lower surface of the sliding plate. A J-shaped pull rod is fixedly connected to the rear side of the sliding cross beam. A U-shaped rod is fixedly connected to the lower surface of the sliding plate.

[0014] As a further technical solution, the clamping plate is slidably connected to the inner surface of the limiting through groove. The sliding plate is slidably connected to the inner surface of the slide rail. The rear end of the J-shaped pull rod is clamped with the inner surface of the U-shaped rod.

[0015] The present invention adopts the above technical solutions and can bring the following beneficial effects: 1. The automatic safety net detection device based on intelligent sensors hooks the four corners of the safety net through hooks, thus quickly fixing the safety net and facilitating the testing of the safety net. The sleeve rod drives the twisting ring and the hook to move leftward, increasing the lateral stretching area of the device. After the safety net is horizontally pulled, the force is transmitted to the horizontal tension sensor, thereby detecting how strong a tension the safety net can withstand and ensuring that the quality of the safety net is problem-free. The front support arm drives the hook to move forward, increasing the longitudinal stretching area of the device, facilitating the device to detect safety nets of different sizes, improving the applicability of the device, and after the safety net is longitudinally pulled, the force is transmitted to the longitudinal tension sensor, thereby more accurately detecting the tension that the safety net can withstand.

[0016] 2. When the moving sliding rod moves forward, it is restricted by the square tube and thus slides within the square tube, so that the front support arm remains balanced when moving forward. When the sliding crossbeam moves forward, it is limited by the balance frame, so that the top of the front support arm is more balanced during the movement, making the device more stable during adjustment, facilitating a quick change in the detection area of the device, and thus improving the detection efficiency.

[0017] 3. The automatic safety net detection device based on intelligent sensors locks the moving sliding rod through the convex shaft and the square tube, and then quickly locks the front support arm and the rear support arm, preventing the device from loosening during the impact test and further improving the test stability. By opening the side through groove, it is convenient for the dial plate to move back and forth following the convex shaft, and thus it is convenient for the staff to quickly adjust the convex shaft to lock or separate the front support arm and the rear support arm, improving the usability of the device.

[0018] 4. After the front support arm moves to different positions, it pushes the sliding plate, causing the sliding plate to approach the center of the front support arm and the rear support arm. The sliding plate then drives the second fixed pulley and the cable hook to move to the center of the front support arm and the rear support arm, preventing the impact device from deviating from the center of the safety net and limiting the test effect.

[0019] 5. Pushing the sliding plate to slide within the slide rail makes the movement of the sliding plate smoother and faster, improving the adjustment efficiency. After the J-shaped pull rod hooks the U-shaped rod and drives it to move back and forth, at this time the sliding crossbeam can directly drive the sliding plate to move closer to the center part of the unfolded safety net through the J-shaped pull rod and the U-shaped rod, improving the usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention; Figure 2 is the three-dimensional semi-sectional structure schematic diagram of the front side of the front support arm of the present invention; Figure 3For the present invention Figure 2 Schematic enlarged structure diagram of A in the present invention; Figure 4 Schematic three-dimensional half-sectional structure diagram of the front side of the balance device of the present invention; Figure 5 For the present invention Figure 4 Schematic enlarged structure diagram of B in the present invention; Figure 6 Schematic three-dimensional structure diagram of the rear side of the moving slide bar of the present invention; Figure 7 Schematic three-dimensional structure diagram of the side bottom surface of the balance frame of the present invention; Figure 8 Schematic three-dimensional structure diagram of the front side of the adjusting device of the present invention; Figure 9 For the present invention Figure 8 Schematic enlarged structure diagram of C in the present invention.

[0021] In the figure: 1. Rear support arm; 2. Front support arm; 3. Fixed hoop; 4. Fixed rod; 5. Sleeve rod; 6. Fixed slide bar; 7. Balance device; 8. Adjusting device; 9. Twisting ring; 10. Hook; 11. Contact plate; 12. Electric telescopic rod; 13. Support plate; 14. Horizontal tension sensor; 15. Support rod; 16. Vertical tension sensor; 17. Linear motor; 18. Push rod; 19. Transmission cross bar; 20. Moving slide bar; 81. Square tube; 82. Fixed cross bar; 83. Inclined rod; 84. Balance frame; 85. Sliding cross beam; 86. Convex plate; 87. Convex shaft; 88. Limit post; 89. Dial plate; 810. Lock hole; 811. Side through groove; 812. Lower through groove; 91. First fixed pulley; 92. Sliding plate; 93. Second fixed pulley; 94. Clamping plate; 95. Limit through groove; 96. Slide rail; 97. Cable hook; 98. J-shaped pull rod; 99. U-shaped rod. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 - 9, an embodiment of the present invention is: a safety net automatic detection device based on intelligent sensors, including a rear support arm 1, the rear support arm 1 is used to fix the rear side of the safety net, a front support arm 2 is arranged on the front side of the rear support arm 1, the front support arm 2 is used to fix the front side of the safety net, a fixing hoop 3 is fixedly connected to the rear side surface of the front support arm 2, a fixing rod 4 is fixedly connected to the inner surface of the fixing hoop 3, a fixed sliding rod 6 is fixedly connected to the left end of the fixing rod 4, a sleeve rod 5 is slidably connected to the surface of the fixed sliding rod 6, a balancing device 7 is arranged on the front side of the rear support arm 1, and the rear support arm 1 is used to make the device more balanced and stable when adjusting the detection area. An adjusting device 8 is arranged above the rear support arm 1, and the adjusting device 8 is used to adjust the position of the impact device following the change of the detection area. The four corners of the safety net are hooked by hooks 10, so as to quickly fix the safety net and facilitate the testing of the safety net. The sleeve rod 5 drives the twisting ring 9 and the hook 10 to move leftward, increasing the lateral stretching area of the device. After the safety net is horizontally pulled, the force is transmitted to the horizontal tension sensor 14, so as to detect how strong a tension the safety net can withstand and ensure that the quality of the safety net is okay. The rear support arm 1 includes a twisting ring 9, the twisting ring 9 is hinged to the circumferential surface of the fixing rod 4, a hook 10 is fixedly connected to the circumferential surface of the twisting ring 9, and the hook 10 is used to test and hook the safety net. A contact plate 11 is fixedly connected to the circumferential surface of the sleeve rod 5, the fixed end of the electric telescopic rod 12 is fixedly connected to the side surface of the rear support arm 1, a support plate 13 is arranged on the front side surface of the rear support arm 1, a horizontal tension sensor 14 is fixedly connected to the left side surface of the support plate 13, a support rod 15 is fixedly connected to the lower surface of the electric telescopic rod 12, and a longitudinal tension sensor 16 is fixedly connected to the front end of the support rod 15. The rear support arm 1 further includes a linear motor 17, the linear motor 17 is arranged on the front side of the rear support arm 1, a push rod 18 is fixedly connected to the moving end of the linear motor 17, a transmission cross bar 19 is fixedly connected to the front end of the push rod 18, moving sliding rods 20 are fixedly connected to both ends of the transmission cross bar 19, the fixing hoop 3 is fixedly connected to the front side surface of the rear support arm 1, the outer surface of the sleeve rod 5 is slidably connected to the inner surface of the fixing hoop 3, the twisting ring 9 is hinged to the circumferential surface of the sleeve rod 5, and torsion springs are arranged at the hinge joints of the twisting ring 9 with the fixing rod 4 and the sleeve rod 5. The left free end of the electric telescopic rod 12 is fixedly connected to the right side surface of the contact plate 11, and the front end of the moving sliding rod 20 is fixedly connected to the rear side surface of the front support arm 2. The front support arm 2 drives the hook 10 to move forward, increasing the longitudinal stretching area of the device, facilitating the device to detect safety nets of different sizes, improving the applicability of the device, and after the safety net is longitudinally pulled, the force is transmitted to the longitudinal tension sensor 16, so as to more accurately detect the tension that the safety net can withstand.

[0024] Working principle: Rotate the twisting ring 9, which drives the hook 10 to rotate and open, and then hook the four corners of the safety net through the hook 10, so as to quickly fix the safety net and facilitate testing the safety net. Start the electric telescopic rod 12, which pushes the contact plate 11 to move to the left. The contact plate 11 drives the sleeve rod 5 to slide to the left, and the sleeve rod 5 drives the twisting ring 9 and the hook 10 to move to the left, thereby increasing the lateral stretching area of the device. After the safety net is pulled horizontally, the force is transmitted to the lateral tension sensor 14, thereby detecting how much tension the safety net can withstand. , to ensure that there is no problem with the quality of the safety net, start the linear motor 17, the linear motor 17 drives the push rod 18 to move forward, the push rod 18 drives the transmission cross bar 19 and the movable slide bar 20 to move forward, the movable slide bar 20 drives the front support arm 2 to move forward, and the front support arm 2 drives the hook 10 to move forward, thereby increasing the longitudinal stretching area of the device, making it convenient for the device to detect safety nets of different sizes, improving the applicability of the device, and after the safety net is pulled longitudinally, the force is transmitted to the longitudinal tension sensor 16, thereby more accurately detecting the tension that the safety net can withstand.

[0025] See also Figures 1 - 9, on the basis of the above embodiments, in another embodiment of the present invention, the balancing device 7 includes a square tube 81, the square tube 81 is fixedly connected to the front side surface of the rear support arm 1, a fixed cross bar 82 is fixedly connected to the side surface of the square tube 81, an inclined rod 83 is fixedly connected to the front side surface of the rear support arm 1, the top end of the inclined rod 83 is fixedly connected to a balancing frame 84, a sliding cross beam 85 is fixedly connected to the top end of the front support arm 2. When the moving slide rod 20 moves forward, it is restricted by the square tube 81 and thus slides within the square tube 81, so that the front support arm 2 remains balanced when moving forward. When the sliding cross beam 85 moves forward, it is limited by the balancing frame 84, so that the top end of the front support arm 2 is more balanced during the movement, making the device more stable during adjustment, facilitating a quick change in the detection area of the device, and thus improving the detection efficiency. The balancing device 7 further includes a convex plate 86, the convex plate 86 is fixedly connected to the upper and lower sides of the rear end of the moving slide rod 20. The inner surface of the convex plate 86 is slidably connected to a convex shaft 87, the bottom end of the convex shaft 87 is fixedly connected to a limiting column 88, a dial plate 89 is fixedly connected to the circumferential surface of the convex shaft 87. A locking hole 810 is opened on the upper surface of the square tube 81, a side through groove 811 is opened on the side surface of the square tube 81, a lower through groove 812 is opened on the lower surface of the square tube 81. The moving slide rod 20 is slidably connected to the inner surface of the square tube 81, the balancing frame 84 is fixedly connected to the top end of the rear support arm 1, the upper surface of the sliding cross beam 85 is slidably connected to the lower surface of the balancing frame 84. The limiting column 88 slides through the upper surface of the convex plate 86 and extends out of the lower surface of the convex plate 86, the convex shaft 87 abuts against the inner surface of the locking hole 810, the dial plate 89 abuts against the inner surface of the side through groove 811, the limiting column 88 abuts against the inner surface of the lower through groove 812, the convex plate 86 is slidably connected to the inner surface of the square tube 81. A spring is provided between the bottom end of the convex shaft 87 and the upper surface of the convex plate 86. The moving slide rod 20 is locked to the square tube 81 through the convex shaft 87, and thus the front support arm 2 and the rear support arm 1 are quickly locked, preventing the device from loosening during the impact test and further improving the test stability. By opening the side through groove 811, it is convenient for the dial plate 89 to move back and forth following the convex shaft 87, and thus it is convenient for the staff to quickly adjust the convex shaft 87 to lock or separate the front support arm 2 and the rear support arm 1, improving the usability of the device.

[0026] Working principle: When the moving slide bar 20 moves forward, it is restricted by the square tube 81 and thus slides within the square tube 81, enabling the front support arm 2 to maintain balance when moving forward. When the front support arm 2 moves forward, it drives the sliding cross beam 85 to move forward, and when the sliding cross beam 85 moves forward, it is limited by the balance frame 84, making the top end of the front support arm 2 more balanced during the movement, making the device more stable during adjustment, facilitating a quick change in the detection area of the device, thereby improving the detection efficiency. When the front support arm 2 moves forward, press down on the dial 89. After the front support arm 2 moves to a specific position, release the dial 89. At this time, the elastic reset effect of the spring pushes the convex shaft 87 upward. The convex shaft 87 slides upward within the convex plate 86 and inserts into the lock hole 810. At this time, the moving slide bar 20 is locked through the convex shaft 87 and the square tube 81, further enabling the front support arm 2 and the rear support arm 1 to be quickly locked, preventing the device from loosening during the impact test and further improving the test stability. When the convex shaft 87 moves up and down under the action of the spring elastic force, it drives the limit post 88 to move up and down within the convex plate 86 and the lower through groove 812, thus preventing the convex shaft 87 from skewing. Through the opening of the side through groove 811, it is convenient for the dial 89 to move back and forth following the convex shaft 87, facilitating the staff to quickly adjust the convex shaft 87 to lock or separate the front support arm 2 and the rear support arm 1, improving the usability of the device.

[0027] Please refer to Figures 1 - 9 , on the basis of the above embodiments, in another embodiment of the present invention, the adjustment device 8 includes a first fixed pulley 91, the first fixed pulley 91 is rotatably connected to the lower surface of the balance frame 84, a sliding plate 92 is arranged on the front side surface of the first fixed pulley 91, a second fixed pulley 93 is rotatably connected to the lower surface of the sliding plate 92. After the front support arm 2 moves to different positions, push the sliding plate 92 to make the sliding plate 92 close to the center of the front support arm 2 and the rear support arm 1. The sliding plate 92 then drives the second fixed pulley 93 and the cable hook 97 to move to the center of the front support arm 2 and the rear support arm 1, preventing the impact device from deviating from the center of the safety net and resulting in limited test effects. The adjustment device 8 further includes a clamping plate 94, the clamping plate 94 is fixedly connected to the upper surface of the sliding cross beam 85, a limit through groove 95 is opened on the lower surface of the balance frame 84, a slide rail 96 is fixedly connected to the inner surface of the balance frame 84, the cable hook 97 is fixedly connected to the lower surface of the sliding plate 92, a J-shaped pull rod 98 is fixedly connected to the rear side surface of the sliding cross beam 85, a U-shaped rod 99 is fixedly connected to the lower surface of the sliding plate 92. The inner surface of the clamping plate 94 and the limit through groove 95 are slidably connected, the inner surface of the sliding plate 92 and the slide rail 96 are slidably connected, the rear end of the J-shaped pull rod 98 is clamped with the inner surface of the U-shaped rod 99. Pushing the sliding plate 92 to slide within the slide rail 96 makes the movement of the sliding plate 92 smoother and faster, improving the adjustment efficiency. After the J-shaped pull rod 98 hooks the U-shaped rod 99 and drives it to move back and forth, at this time, the sliding cross beam 85 can directly drive the sliding plate 92 to move closer to the center part of the unfolded safety net through the J-shaped pull rod 98 and the U-shaped rod 99, improving the usability of the device.

[0028] Working principle: When the sliding crossbeam 85 moves forward and backward, it drives the clamping plate 94 to slide back and forth in the limit through groove 95, so as to align the front support arm 2 and the balance frame 84. After the front support arm 2 moves to different positions, the sliding plate 92 is pushed to make the sliding plate 92 close to the centers of the front support arm 2 and the rear support arm 1. The sliding plate 92 then drives the second fixed pulley 93 and the cable hook 97 to move to the centers of the front support arm 2 and the rear support arm 1, preventing the impact device from deviating from the center of the safety net and resulting in limited test effects. The sliding plate 92 is pushed to slide in the slide rail 96, making the movement of the sliding plate 92 smoother and faster, improving the adjustment efficiency. When the sliding crossbeam 85 moves forward and backward, it drives the J-shaped pull rod 98 to move forward and backward. After the J-shaped pull rod 98 hooks the U-shaped rod 99, it drives the U-shaped rod 99 to move forward and backward. At this time, the sliding crossbeam 85 can directly drive the sliding plate 92 to move close to the center part of the unfolded safety net through the J-shaped pull rod 98 and the U-shaped rod 99, improving the convenience of use of the device.

[0029] The present invention provides a safety net automatic detection device based on intelligent sensors. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented by existing technologies.

Claims

1. An automatic detection device for a safety net based on intelligent sensors, characterized in that, Comprising: A rear support arm (1) for fixing the rear side of the safety net; A front support arm (2) arranged on the front side of the rear support arm (1). The front support arm (2) is used for fixing the front side of the safety net. A fixing hoop (3) is fixedly connected to the rear side surface of the front support arm (2). A fixing rod (4) is fixedly connected to the inner surface of the fixing hoop (3). The left end of the fixing rod (4) is fixedly connected to a fixed sliding rod (6), and a sleeve rod (5) is slidably connected to the surface of the fixed sliding rod (6); A balancing device (7) arranged on the front side of the rear support arm (1) for making the device more balanced and stable when adjusting the detection area; An adjusting device (8) arranged above the rear support arm (1) for adjusting the position of the impact device following the change of the detection area.

2. The automatic detection device for safety nets based on intelligent sensors according to claim 1, wherein: The rear support arm (1) includes; A twisting ring (9) hinged to the circumferential surface of the fixed rod (4). A hook (10) is fixedly connected to the circumferential surface of the twisting ring (9) for testing and hooking the safety net; A contact plate (11) fixedly connected to the circumferential surface of the sleeve rod (5); An electric telescopic rod (12) whose fixed end is fixedly connected to the side surface of the rear support arm (1); A support plate (13) arranged on the front side surface of the rear support arm (1). A horizontal tension sensor (14) is fixedly connected to the left side surface of the support plate (13); A support rod (15) fixedly connected to the lower surface of the electric telescopic rod (12). A longitudinal tension sensor (16) is fixedly connected to the front end of the support rod (15).

3. The automatic detection device for safety nets based on intelligent sensors according to claim 2, characterized in that: The rear support arm (1) further includes; A linear motor (17) arranged on the front side of the rear support arm (1). A push rod (18) is fixedly connected to the moving end of the linear motor (17); A transmission cross bar (19) fixedly connected to the front end of the push rod (18). Moving sliding rods (20) are fixedly connected to both ends of the transmission cross bar (19).

4. The automatic detection device for safety nets based on intelligent sensors according to claim 3, characterized in that: The fixing hoop (3) is fixedly connected to the front side surface of the rear support arm (1). The outer surface of the sleeve rod (5) is slidably connected to the inner surface of the fixing hoop (3). The twisting ring (9) is hinged to the circumferential surface of the sleeve rod (5). Torsion springs are arranged at the hinge joints of the twisting ring (9) with the fixed rod (4) and the sleeve rod (5). The left free end of the electric telescopic rod (12) is fixedly connected to the right side surface of the contact plate (11). The front end of the moving sliding rod (20) is fixedly connected to the rear side surface of the front support arm (2).

5. The automatic detection device for safety net based on intelligent sensor according to claim 4, characterized in that: The balancing device (7) includes; A square tube (81) fixedly connected to the front side surface of the rear support arm (1). A fixed cross bar (82) is fixedly connected to the side surface of the square tube (81); An inclined rod (83) fixedly connected to the front side surface of the rear support arm (1). A balance frame (84) is fixedly connected to the top end of the inclined rod (83); A sliding crossbeam (85), and the sliding crossbeam (85) is fixedly connected to the top end of the front support arm (2).

6. The automatic detection device for safety nets based on intelligent sensors according to claim 5, characterized in that: The balance device (7) further includes; A convex plate (86), the convex plate (86) is fixedly connected to the upper and lower sides of the rear end of the movable slide rod (20), a convex shaft (87) is slidably connected to the inner surface of the convex plate (86), a limit post (88) is fixedly connected to the bottom end of the convex shaft (87), and a dial plate (89) is fixedly connected to the circumferential surface of the convex shaft (87); A lock hole (810), and the lock hole (810) is opened on the upper surface of the square pipe (81); A side through groove (811), and the side through groove (811) is opened on the side surface of the square pipe (81); A lower through groove (812), and the lower through groove (812) is opened on the lower surface of the square pipe (81).

7. The automatic detection device for safety nets based on intelligent sensors according to claim 6, characterized in that: The movable slide rod (20) is slidably connected to the inner surface of the square pipe (81), the balance frame (84) is fixedly connected to the top end of the rear support arm (1), the upper surface of the sliding crossbeam (85) is slidably connected to the lower surface of the balance frame (84), the limit post (88) slides through the upper surface of the convex plate (86) and out of the lower surface of the convex plate (86), the convex shaft (87) abuts against the inner surface of the lock hole (810), the dial plate (89) abuts against the inner surface of the side through groove (811), the limit post (88) abuts against the inner surface of the lower through groove (812), the convex plate (86) is slidably connected to the inner surface of the square pipe (81), and a spring is provided between the bottom end of the convex shaft (87) and the upper surface of the convex plate (86).

8. The automatic detection device for safety nets based on intelligent sensors according to claim 7, characterized in that: The adjusting device (8) includes; A first fixed pulley (91), and the first fixed pulley (91) is rotatably connected to the lower surface of the balance frame (84); A sliding plate (92), the sliding plate (92) is arranged on the front side of the first fixed pulley (91), and a second fixed pulley (93) is rotatably connected to the lower surface of the sliding plate (92).

9. The automatic detection device for safety nets based on intelligent sensors according to claim 7, wherein: The adjusting device (8) further includes; A clamping plate (94), and the clamping plate (94) is fixedly connected to the upper surface of the sliding crossbeam (85); A limit through groove (95), and the limit through groove (95) is opened on the lower surface of the balance frame (84); A slide rail (96), and the slide rail (96) is fixedly connected to the inner surface of the balance frame (84); A cable hook (97), and the cable hook (97) is fixedly connected to the lower surface of the sliding plate (92); A J-shaped pull rod (98), and the J-shaped pull rod (98) is fixedly connected to the rear side surface of the sliding crossbeam (85); A U-shaped rod (99), and the U-shaped rod (99) is fixedly connected to the lower surface of the sliding plate (92).

10. The automatic detection device for safety nets based on intelligent sensors according to claim 7, wherein: The clamping plate (94) is slidably connected to the inner surface of the limit through groove (95), the sliding plate (92) is slidably connected to the inner surface of the slide rail (96), and the rear end of the J-shaped pull rod (98) is clamped with the inner surface of the U-shaped rod (99).

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