Platform safety protection sensor signal device based on high-precision laser light source

Abstract

The invention relates to the technical field of platform safety protection, in particular to a platform safety protection sensor signal device based on a high-precision laser light source, which comprises a plurality of regularly distributed line-crossing protection piles, a fixing device arranged above the line-crossing protection piles and a platform itinerant protection signal vehicle moving on the top surface of the fixing device. According to the platform safety protection sensor signal device based on the high-precision laser light source, when a platform itinerant protection signal vehicle moves above a plurality of line-crossing protection piles, the monitoring range of the monitoring sensor is continuously changed through the driving device, and multi-angle dynamic monitoring is continuously carried out on people flow data on a platform through the monitoring sensor; the intelligent management of the platform is improved, and a signal lamp is matched, so that platform workers can deal with potential safety hazards in time.

Description

Technical Field

[0001] The present invention relates to the technical field of platform safety protection, and in particular to a platform safety protection sensor signal device based on a high-precision laser light source. Background Art

[0002] Platform safety protection sensors are key equipment to ensure passenger safety. They sense the dynamics of passenger flow, accurately determine the position and direction of passengers when they pass through the platform door, and use the photoelectric effect to convert light signals into electrical signals. Once abnormal behavior is detected, the system will respond quickly to effectively protect the personal safety of passengers.

[0003] The patent with application number CN202121880853.0 discloses a platform cross-line detection device, including a cross-line detector, an external Fresnel lens covered on the cross-line detector, and a signal sensing circuit electrically connected to the cross-line detector; the cross-line detector is embedded in one or more safety line modules used to identify the platform's electronic safety line; the signal sensing circuit is arranged in the safety line module; the cross-line detector is used to detect the current position of the passenger on the platform, and after detecting that a passenger has crossed the electronic safety line, it outputs a cross-line detection signal to the signal sensing circuit; the signal sensing circuit is used to rectify and stabilize the cross-line detection signal.

[0004] Existing platform safety protection sensors are mainly composed of several regularly distributed cross-line protection devices, which only rely on shooting radar to monitor passengers' cross-line behavior. The monitoring range of this method is fixed and limited, which may lead to abnormal situations in certain areas or angles being missed, and potential safety hazards may not be discovered and handled in time. At the same time, the cross-line protection devices are prone to dust and dirt accumulation, affecting the accuracy of monitoring. They need to be cleaned manually on a regular basis, which increases the difficulty and cost of maintenance.

[0005] In view of this, we propose a platform safety protection sensor signal device based on a high-precision laser light source. Summary of the invention

[0006] The purpose of the present invention is to provide a platform safety protection sensor signal device based on a high-precision laser light source to solve the problems raised in the above background technology.

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

[0008] A platform safety protection sensor signal device based on a high-precision laser light source, comprising a number of regularly distributed cross-line protection piles, a fixing device arranged above the cross-line protection piles, and a platform patrol protection signal vehicle moving on the top surface of the fixing device, wherein the cross-line protection piles include a windproof cover body and a number of laser radars arranged on the outer side wall of the windproof cover body;

[0009] The line crossing protection pile also includes two fixed racks arranged on the outer side wall of the windproof cover, a cleaning part arranged on the outer side of the windproof cover, two traction ropes arranged on the top surface of the cleaning part, and a limiting slider arranged on the top of the traction rope;

[0010] The cleaning part includes a limiting bracket, a rotating roller arranged inside the limiting bracket, roller gears arranged at both ends of the rotating roller, and a cleaning brush sleeved on the outer side of the rotating roller;

[0011] The fixing device comprises a fixing horizontal plate and a supporting rod arranged on the fixing horizontal plate and the top surface of the windproof cover body;

[0012] The platform patrol protection signal vehicle comprises a mobile frame, a driving device arranged inside the mobile frame, monitoring sensors arranged at both ends of the driving device, a set of limit parts arranged on the bottom surface of the mobile frame, and a signal lamp fixedly connected to the top surface of the mobile frame by bolts;

[0013] The driving device includes a driving motor, a rotating shaft that rotates as the output shaft of the driving motor rotates, a driving wheel that rotates together with the rotating shaft, a dial arranged at the end of the rotating shaft, a moving tooth plate that moves in coordination with the dial, and a clamping portion arranged on the outer side of the moving tooth plate for fixing the monitoring sensor;

[0014] The limiting part includes a limiting sliding rod, a limiting protrusion arranged at the bottom end of the limiting sliding rod, and a pressure spring sleeved on the outer side of the limiting sliding rod.

[0015] In the technical solution of the present invention, the outer wall of the wind shield body is provided with cover surface grooves on both sides of the laser radar, and limiting sliding grooves are provided on the outer walls at both ends of the wind shield body, and the fixed rack is clamped and fixed on the inner groove wall of the cover surface groove.

[0016] In the technical solution of the present invention, the two ends of the limit bracket are slidably connected to the inside of the limit slide groove, the two ends of the rotating roller are rotatably connected to the inside of the limit bracket, and the roller gear and the cleaning brush are fixedly connected to the outer wall of the rotating roller by a pin.

[0017] In the technical solution of the present invention, the two ends of the traction rope are respectively hot-melt connected to the top surface of the limit bracket and the outer side wall of the limit slider. The longitudinal section of the limit slider is inverted T-shape and a limit opening is provided on the top surface.

[0018] In the technical solution of the present invention, a board groove is provided on the top surface of the fixed horizontal plate to provide a moving range for the limiting sliding block, a board slide rail is provided on the top surface of the fixed horizontal plate between two board grooves, the bottom end of the support rod is fixedly connected to the top surface of the windproof cover body by bolts, and a guide pulley is clamped and fixed inside the board groove.

[0019] In the technical solution of the present invention, a spacer plate is welded and fixed on the inner wall of the movable frame, and bent frame plates are welded and fixed on the bottom of both ends of the movable frame, and the bottom surface of the bent frame plate is in conflict with the bent part of the top surface of the fixed horizontal plate.

[0020] In the technical solution of the present invention, the driving device also includes a sleeve bracket that provides a rotation base point for the rotating shaft, the driving motor is fixedly connected to the top surface of the movable frame by bolts, a worm gear is clamped and fixed to the end of the output shaft of the driving motor, and a worm that meshes with the worm gear is sleeved at the center position of the outer side wall of the rotating shaft.

[0021] In the technical solution of the present invention, the dial is clamped and fixed at the end position of the rotating shaft, a disc body protrusion is integrally formed on the outer wall of the dial, the longitudinal cross-section of the movable tooth plate is T-shaped and a plate body groove is opened inside the longitudinal center rod, and the movable tooth plate is slidably connected to the inner wall of the movable frame.

[0022] In the technical solution of the present invention, the clamping part includes a docking gear meshing with the movable tooth plate, a connecting rod integrally formed on the outer wall of the docking gear, and a clamping frame fixed at the end position of the connecting rod, and the connecting rod is rotatably connected to the inner wall of the movable frame.

[0023] In the technical solution of the present invention, the limiting slide rod is slidably connected to the bottom surface of the partition plate, the bottom of the limiting protrusion is in conflict with the top surface of the fixed horizontal plate, the top end of the limiting slide rod is clamped and fixed to the limiting disk, and the upper and lower ends of the pressure spring are respectively in conflict with the bottom surface of the partition plate and the top surface of the limiting protrusion, and the pressure provided by the pressure spring pushes the limiting protrusion to move downward.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The platform safety protection sensor signal device based on high-precision laser light source, when the platform patrol protection signal vehicle moves above several cross-line protection piles, continuously changes the monitoring range of the monitoring sensor through the driving device, and continuously monitors the flow of people on the platform through the monitoring sensor for multi-angle dynamic monitoring, thereby improving the intelligent management of the platform and cooperating with the signal lights, so that the platform staff can deal with potential safety hazards in a timely manner.

[0026] 2. The platform safety protection sensor signal device based on a high-precision laser light source can periodically pull the cleaning part upward on the outside of the windproof cover through the limit part and the limit slider while the platform patrol protection signal vehicle is moving, thereby reducing the input of cleaning labor and preventing the laser radar from being affected by dust and snow. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0028] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the line crossing protection pile in the present invention;

[0030] Figure 4 For the present invention Figure 3 A magnified schematic diagram of part A;

[0031] Figure 5 For the present invention Figure 3 A magnified schematic diagram of part B;

[0032] Figure 6 It is a schematic diagram of the structure of the cleaning part in the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the fixing device in the present invention;

[0034] Figure 8 It is a schematic cross-sectional view of the structure of the platform patrol protection signal vehicle in the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the driving device in the present invention;

[0036] Fig.10 It is a partial structural schematic diagram of the driving device in the present invention;

[0037] Fig.11 It is a structural schematic diagram of the movable tooth plate in the present invention;

[0038] Fig.12 It is a structural schematic diagram of the clamping part in the present invention;

[0039] Fig.13 It is a structural schematic diagram of the limiting part in the present invention;

[0040] Description of reference numerals:

[0041] 100, line crossing protection pile; 110, windproof cover; 111, cover surface slot; 112, limit slide; 120, fixed rack; 130, laser radar; 140, cleaning part; 141, limit bracket; 142, rotating roller; 143, roller body gear; 144, cleaning brush; 150, traction rope; 160, limit slider; 161, limit opening;

[0042] 200, fixing device; 210, fixing horizontal plate; 211, plate surface slotting; 212, plate surface slide rail; 220, supporting rod; 230, guide pulley;

[0043] 300, platform patrol protection signal vehicle; 310, movable frame; 311, partition plate; 312, bent frame plate; 320, driving device; 321, driving motor; 322, rotating shaft; 323, driving wheel; 324, worm gear; 325, worm; 326, dial; 3260, disc body protrusion; 327, movable tooth plate; 3270, plate body groove; 328, clamping part; 3280, docking gear; 3281, connecting rod; 3282, clamping frame; 329, outer cover bracket; 330, monitoring sensor; 340, limiting part; 341, limiting slide bar; 342, limiting protrusion; 343, limiting disc; 344, pressure spring; 350, signal light. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in 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 in 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.

[0045] See also Figure 1-Figure 13 As shown, this embodiment provides a technical solution:

[0046] A platform safety protection sensor signal device based on a high-precision laser light source includes a plurality of regularly distributed cross-line protection piles 100, a fixing device 200 arranged above the plurality of cross-line protection piles 100, and a platform patrol protection signal vehicle 300 moving on the top surface of the fixing device 200. The cross-line protection pile 100 includes a windproof cover body 110 and a plurality of laser radars 130 arranged on the outer side wall of the windproof cover body 110.

[0047] In this embodiment, Figure 3-Figure 6 As shown, the line crossing protection pile 100 also includes two fixed racks 120 arranged on the outer wall of the windproof cover body 110, a cleaning part 140 arranged on the outside of the windproof cover body 110, two traction ropes 150 arranged on the top surface of the cleaning part 140, and a limiting slider 160 arranged on the top of the traction rope 150.

[0048] Specifically, the cleaning unit 140 includes a limiting bracket 141 , a rotating roller 142 disposed inside the limiting bracket 141 , roller gears 143 disposed at both ends of the rotating roller 142 , and a cleaning brush 144 sleeved on the outer side of the rotating roller 142 .

[0049] Furthermore, the outer wall of the wind shield body 110 is provided with a shield surface groove 111 on both sides of the laser radar 130, and the outer walls at both ends of the wind shield body 110 are provided with a limiting sliding groove 112, and the fixed rack 120 is clamped and fixed on the inner groove wall of the shield surface groove 111.

[0050] Furthermore, both ends of the limiting bracket 141 are slidably connected to the inside of the limiting slide groove 112, and both ends of the rotating roller 142 are rotatably connected to the inside of the limiting bracket 141. The roller gear 143 and the cleaning brush 144 are fixedly connected to the outer wall of the rotating roller 142 by a bayonet.

[0051] Furthermore, the two ends of the traction rope 150 are respectively connected by hot melt to the top surface of the limiting bracket 141 and the outer wall of the limiting slider 160. The longitudinal section of the limiting slider 160 is inverted T-shaped and a limiting opening 161 is provided on the top surface.

[0052] Furthermore, the windproof cover 110 ensures the stability of the off-line protection pile 100 at the edge of the platform, the laser radar 130 emits an invisible light beam at the edge of the yellow line of the platform to monitor the passengers' off-line behavior, the cover surface groove 111 is used to increase the placement range for the fixed rack 120, and the limiting slide groove 112 is used to provide a moving range for the limiting bracket 141.

[0053] Furthermore, after the limiting slider 160 is displaced, the limiting bracket 141 is pulled upward by the traction rope 150, causing the roller gear 143 to rotate after contacting with the fixed rack 120, and then the rotating cleaning brush 144 cleans the outside of the windproof cover 110.

[0054] In this embodiment, Figure 7 As shown, the fixing device 200 includes a fixing transverse plate 210 and a support rod 220 arranged on the fixing transverse plate 210 and the top surface of the windproof cover body 110 .

[0055] Specifically, a board slot 211 is provided on the top surface of the fixed horizontal plate 210 to provide a moving range for the limiting slider 160, and a board slide rail 212 is provided on the top surface of the fixed horizontal plate 210 between two board slots 211. The bottom end of the support rod 220 is fixedly connected to the top surface of the wind shield body 110 by bolts, and a guide pulley 230 is clamped and fixed inside the board slot 211.

[0056] Furthermore, the fixed cross plate 210 cooperates with the support rod 220 to ensure the strength of the overall structure of the fixing device 200, the plate surface groove 211 is used to provide a moving range for the limiting slider 160, the plate surface groove 211 is used to limit the moving range of the platform patrol protection signal vehicle 300, and the guide pulley 230 is used to reduce the friction when the traction rope 150 moves.

[0057] In this embodiment, Figure 8-Figure 13As shown, the platform patrol protection signal vehicle 300 includes a mobile frame 310, a driving device 320 arranged inside the mobile frame 310, monitoring sensors 330 arranged at both ends of the driving device 320, a group of limiting parts 340 arranged on the bottom surface of the mobile frame 310, and a signal light 350 fixedly connected to the top surface of the mobile frame 310 by bolts.

[0058] Specifically, a partition plate 311 is welded and fixed on the inner wall of the movable frame 310 , and bent frame plates 312 are welded and fixed on the bottom of both ends of the movable frame 310 . The bottom surface of the bent frame plate 312 abuts against the bent portion of the top surface of the fixed horizontal plate 210 .

[0059] Furthermore, the movable frame 310 is used to provide a placement area for the driving device 320 and the signal light 350, the partition plate 311 is used to provide a placement platform for the limiting part 340, and the bent frame plate 312 is used to ensure the stability of the overall movement of the platform patrol protection signal vehicle 300 on the top surface of the fixed horizontal plate 210.

[0060] In this embodiment, Figure 9-12 As shown, the driving device 320 includes a driving motor 321, a rotating shaft 322 that rotates as the output shaft of the driving motor 321 rotates, a driving wheel 323 that rotates together with the rotating shaft 322, a dial 326 arranged at the end of the rotating shaft 322, a movable tooth plate 327 that cooperates with the dial 326 to move, and a clamping portion 328 arranged on the outer side of the movable tooth plate 327 for fixing the monitoring sensor 330.

[0061] Specifically, the driving device 320 also includes a jacket bracket 329 that provides a rotation base point for the rotating shaft 322. The driving motor 321 is fixedly connected to the top surface of the movable frame 310 by bolts. The output shaft end of the driving motor 321 is clamped and fixed with a worm gear 324. A worm 325 meshing with the worm gear 324 is sleeved at the center position of the outer wall of the rotating shaft 322.

[0062] Furthermore, the dial 326 is clamped and fixed at the end position of the rotating shaft 322, and a disc protrusion 3260 is integrally formed on the outer wall of the dial 326. The longitudinal cross-section of the movable tooth plate 327 is T-shaped and a plate groove 3270 is opened inside the longitudinal center rod. The movable tooth plate 327 is slidably connected to the inner wall of the movable frame 310.

[0063] Furthermore, the clamping portion 328 includes a docking gear 3280 meshing with the movable tooth plate 327, a connecting rod 3281 integrally formed on the outer wall of the docking gear 3280, and a clamping frame 3282 fixed at the end position of the connecting rod 3281, and the connecting rod 3281 is rotatably connected to the inner wall of the movable frame body 310.

[0064] Furthermore, after the driving motor 321 is started, the worm gear 324 of the output shaft rotates. After the worm gear 324 collides with the worm 325, it drives the rotating shaft 322 and the driving wheel 323 to rotate, thereby driving the platform patrol protection signal vehicle 300 to move as a whole above the fixed horizontal plate 210. During the rotation of the rotating shaft 322, the dial 326 at the end is driven to rotate, and the position of the disc protrusion 3260 is continuously changed, thereby continuously changing the contact position with the plate body groove 3270 in the movable tooth plate 327, thereby driving the movable tooth plate 327 to reciprocate. At the same time, the reciprocating movable tooth plate 327 drives the docking gear 3280 to rotate, and drives the reciprocating swing of the clamping frame 3282 through the connecting rod 3281, thereby continuously changing the projection angle of the monitoring sensor 330.

[0065] In this embodiment, Fig.13 As shown, the limiting portion 340 includes a limiting sliding rod 341 , a limiting protrusion 342 disposed at the bottom end of the limiting sliding rod 341 , and a pressure spring 344 sleeved on the outer side of the limiting sliding rod 341 .

[0066] Specifically, the limiting slide rod 341 is slidably connected to the bottom surface of the partition plate 311, the bottom of the limiting protrusion 342 is in conflict with the top surface of the fixed horizontal plate 210, the top end of the limiting slide rod 341 is clamped and fixed with the limiting disc 343, and the upper and lower ends of the pressure spring 344 are in conflict with the bottom surface of the partition plate 311 and the top surface of the limiting protrusion 342 respectively, and the pressure provided by the pressure spring 344 pushes the limiting protrusion 342 to move downward.

[0067] Furthermore, during the movement of the platform patrol protection signal vehicle 300, the limiting protrusion 342 will extend to the inside of the limiting opening 161 on the top surface of the limiting slider 160 under the action of the pressure spring 344, thereby driving the limiting slider 160 to move in the plate groove 211, and then pulling the cleaning part 140 as a whole upward through the traction rope 150, and the limiting disc 343 is used to limit the sliding range of the limiting slide rod 341.

[0068] Finally, it should be noted that the laser radar 130, drive motor 321, monitoring sensor 330 and signal light 350 involved in the present invention are all universal standard parts or components known to technical personnel in this field, and their structures and principles are all known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle space of this device, the laser radar 130, drive motor 321, monitoring sensor 330 and signal light 350 are connected to an external power supply through wires. The specific connection method should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection methods are all well-known technologies in the field.

[0069] When the platform safety protection sensor signal device based on a high-precision laser light source of the present invention is used, the laser radar 130 in the line crossing protection pile 100 is first turned on, and a number of invisible light beams are formed at the edge of the yellow line of the platform;

[0070] Next, the driving motor 321 in the platform patrol protection signal vehicle 300 is started, and the worm wheel 324 of the output shaft is rotated. After the worm wheel 324 and the worm 325 collide with each other, the rotating shaft 322 and the driving wheel 323 are driven to rotate, and the platform patrol protection signal vehicle 300 is driven to move above the fixed horizontal plate 210 as a whole.

[0071] During the rotation of the rotating shaft 322, the dial 326 at the end is driven to rotate, and the position of the disc body protrusion 3260 is continuously changed, and then the contact position with the plate body groove 3270 in the movable tooth plate 327 is continuously changed, thereby driving the movable tooth plate 327 to reciprocate;

[0072] At the same time, the reciprocating movable toothed plate 327 drives the docking gear 3280 to rotate, and the connecting rod 3281 drives the clamping frame 3282 to swing back and forth, thereby continuously changing the projection angle of the monitoring sensor 330;

[0073] During the movement of the platform patrol protection signal vehicle 300, the limiting protrusion 342 will extend to the inside of the limiting opening 161 on the top surface of the limiting slider 160 under the action of the pressure spring 344, thereby driving the limiting slider 160 to move in the plate surface slot 211, and then pulling the cleaning part 140 as a whole to move upward through the traction rope 150;

[0074] When the cleaning part 140 moves upward, the roller gear 143 contacts the fixed rack 120 and rotates, driving the rotating roller 142 and the cleaning brush 144 to rotate together, thereby regularly cleaning the outside of the wind shield 110. When the limit slider 160 moves to the end of the plate groove 211, the limit protrusion 342 separates from the limit slider 160 under the action of the tangential force, and the limit bracket 141 falls to the initial position under its own gravity.

[0075] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A platform safety protection sensor signal device based on a high-precision laser light source, comprising a plurality of regularly distributed cross-line protection piles (100), a fixing device (200) arranged above the plurality of cross-line protection piles (100), and a platform patrol protection signal vehicle (300) moving on the top surface of the fixing device (200), wherein the cross-line protection pile (100) comprises a windproof cover (110) and a plurality of laser radars (130) arranged on the outer side wall of the windproof cover (110); Features: The line crossing protection pile (100) further comprises two fixed racks (120) arranged on the outer side wall of the windproof cover (110), a cleaning portion (140) arranged on the outer side of the windproof cover (110), two traction ropes (150) arranged on the top surface of the cleaning portion (140), and a limiting slider (160) arranged on the top of the traction rope (150); The cleaning part (140) comprises a limiting bracket (141), a rotating roller (142) arranged inside the limiting bracket (141), roller gears (143) arranged at both ends of the rotating roller (142), and a cleaning brush (144) sleeved on the outside of the rotating roller (142); The fixing device (200) comprises a fixing transverse plate (210) and a support rod (220) arranged on the fixing transverse plate (210) and the top surface of the windproof cover body (110); The platform patrol protection signal vehicle (300) comprises a movable frame (310), a driving device (320) arranged inside the movable frame (310), monitoring sensors (330) arranged at both ends of the driving device (320), a set of limit parts (340) arranged on the bottom surface of the movable frame (310), and a signal lamp (350) fixedly connected to the top surface of the movable frame (310) by bolts; The driving device (320) comprises a driving motor (321), a rotating shaft (322) that rotates as the output shaft of the driving motor (321) rotates, a driving wheel (323) that rotates together with the rotating shaft (322), a dial (326) disposed at the end of the rotating shaft (322), a moving tooth plate (327) that moves in coordination with the dial (326), and a clamping portion (328) disposed on the outer side of the moving tooth plate (327) for fixing the monitoring sensor (330); The limiting portion (340) comprises a limiting sliding rod (341), a limiting protrusion (342) arranged at the bottom end of the limiting sliding rod (341), and a pressure spring (344) sleeved on the outside of the limiting sliding rod (341).

2. According to claim 1, the platform safety protection sensor signal device based on a high-precision laser light source is characterized in that: The outer wall of the wind shield body (110) is provided with a shield surface slot (111) on both sides of the laser radar (130), and the outer walls at both ends of the wind shield body (110) are provided with a limit sliding slot (112), and the fixed rack (120) is clamped and fixed on the inner groove wall of the shield surface slot (111).

3. According to claim 1, the platform safety protection sensor signal device based on a high-precision laser light source is characterized in that: The two ends of the limiting bracket (141) are slidably connected to the inside of the limiting slide groove (112), the two ends of the rotating roller (142) are rotatably connected to the inside of the limiting bracket (141), and the roller gear (143) and the cleaning brush (144) are fixedly connected to the outer wall of the rotating roller (142) through a bayonet.

4. The platform safety protection sensor signal device based on a high-precision laser light source according to claim 1 is characterized in that: The two ends of the traction rope (150) are respectively connected by hot melt to the top surface of the limiting bracket (141) and the outer wall of the limiting slider (160); the longitudinal section of the limiting slider (160) is in an inverted T shape and a limiting opening (161) is provided on the top surface.

5. According to claim 1, the platform safety protection sensor signal device based on a high-precision laser light source is characterized in that: The top surface of the fixed transverse plate (210) is provided with a plate surface slot (211) for providing a moving range for the limiting sliding block (160); the top surface of the fixed transverse plate (210) is provided with a plate surface slide rail (212) between two plate surface slots (211); the bottom end of the support rod (220) is fixedly connected to the top surface of the wind shield (110) by bolts; and a guide pulley (230) is fixedly connected inside the plate surface slot (211).

6. The platform safety protection sensor signal device based on a high-precision laser light source according to claim 1 is characterized in that: A partition plate (311) is welded and fixed on the inner wall of the movable frame (310), and bent frame plates (312) are welded and fixed on the bottoms of both ends of the movable frame (310), and the bottom surface of the bent frame plate (312) abuts against the bent portion of the top surface of the fixed transverse plate (210).

7. The platform safety protection sensor signal device based on a high-precision laser light source according to claim 1 is characterized in that: The driving device (320) further comprises a jacket bracket (329) providing a rotation base point for the rotating shaft (322); the driving motor (321) is fixedly connected to the top surface of the movable frame (310) by means of bolts; a worm gear (324) is clamped and fixed to the end of the output shaft of the driving motor (321); and a worm (325) meshing with the worm gear (324) is sleeved at the center position of the outer side wall of the rotating shaft (322).

8. The platform safety protection sensor signal device based on a high-precision laser light source according to claim 1 is characterized in that: The dial (326) is clamped and fixed at the end position of the rotating shaft (322), and a disc body protrusion (3260) is integrally formed on the outer wall of the dial (326). The longitudinal cross-section of the movable tooth plate (327) is T-shaped and a plate body groove (3270) is opened inside the longitudinal center rod. The movable tooth plate (327) is slidably connected to the inner wall of the movable frame (310).

9. The platform safety protection sensor signal device based on a high-precision laser light source according to claim 1 is characterized in that: The clamping portion (328) comprises a docking gear (3280) meshing with the movable tooth plate (327), a connecting rod (3281) integrally formed on the outer side wall of the docking gear (3280), and a clamping frame (3282) clamped and fixed at the end position of the connecting rod (3281), and the connecting rod (3281) is rotatably connected to the inner side wall of the movable frame (310).

10. The platform safety protection sensor signal device based on a high-precision laser light source according to claim 6 is characterized in that: The limiting slide bar (341) is slidably connected to the bottom surface of the partition plate (311), the bottom of the limiting protrusion (342) is in conflict with the top surface of the fixed horizontal plate (210), the top of the limiting slide bar (341) is clamped and fixed with the limiting disc (343), and the upper and lower ends of the pressure spring (344) are in conflict with the bottom surface of the partition plate (311) and the top surface of the limiting protrusion (342) respectively, and the pressure provided by the pressure spring (344) pushes the limiting protrusion (342) to move downward.

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