A stage safety real-time monitoring device

Abstract

The application discloses a stage safety real-time monitoring device and relates to the technical field of stage monitoring equipment.The device comprises a fixing plate, a hoisting mechanism is installed at the bottom of the fixing plate, the hoisting mechanism comprises a steel cable, a monitoring mechanism is installed on the hoisting mechanism, the monitoring mechanism comprises a high-speed camera and a pressure sensor, the bottom of the steel cable is fixedly connected with a connecting mechanism, an alarm mechanism is installed on the connecting mechanism, the alarm mechanism comprises an alarm, a connecting rod, a resisting plate and a starting plate, the alarm is installed on the connecting mechanism, the top surface and the bottom surface of the connecting rod are fixedly installed with the starting plate and the resisting plate respectively, the device has the advantages that the surface of the steel cable can be monitored and photographed when the steel cable is reeled and released, the state of the steel cable can be monitored in real time, and problems such as abrasion and cracks can be found in time, the alarm is triggered when the threaded ring on the connecting hook is loose, signals and alarms can be sent in time, backstage staff and actors can be reminded, and protective measures can be taken.

Description

Technical Field

[0001] This invention relates to the field of stage monitoring equipment technology, and more specifically, to a real-time stage safety monitoring device. Background Technology

[0002] Stage safety is a critical aspect of ensuring the safety of all personnel and audience members during stage performances and related activities. Wire work is a common stunt and performance technique in stage performances. It involves actors or stunt performers using slings, ropes, or other support equipment to suspend, slide, or fly from a height to create visually striking effects.

[0003] The ropes used for wire work are generally made of steel wire. When suspended by wires, performers need to wear safety harnesses, and the steel wire is connected to the performer's safety harness via a connecting hook. The quality of the steel wire and the connecting hook is crucial to the safety of every performer. Therefore, checking that the steel wire and connecting hook are functioning properly before suspending the performer is the last line of defense for ensuring their safety. However, currently, equipment quality checks are usually done manually, making it difficult to comprehensively and effectively identify safety hazards and problems, especially issues like wear and cracks in the steel wire, which are even harder to detect with the naked eye. Furthermore, there are no real-time monitoring devices for the steel wire and connecting hook during use, making it difficult to detect problems promptly. The connecting hook is locked using a threaded ring. Over time, the threaded ring is affected by wear, tension, and friction, which can cause it to loosen or slip. If the threaded ring loosens during use, causing the connecting hook to unlock, the consequences could be disastrous. Therefore, it is necessary to propose a real-time stage safety monitoring device to solve these problems. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this invention is to provide a real-time stage safety monitoring device. This device solves the problems of the difficulty in comprehensively inspecting the steel wires in wire slinging devices manually, and the inability to promptly detect when the connecting hooks loosen due to wear and external forces during the actor's wire slinging process. It features surface monitoring and video recording during the winding and unwinding of the steel wires, thereby monitoring the wire's condition in real time and promptly detecting wear and cracks; when the threaded ring on the connecting hook loosens, an alarm is triggered, promptly sending a signal and alarm to remind backstage staff and actors to take protective measures.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A stage safety real-time monitoring device, comprising:

[0007] A fixed plate is provided, and a winch mechanism is installed at the bottom of the fixed plate. The winch mechanism includes a steel cable, which is rotatably connected to the bottom of the fixed plate.

[0008] The winch mechanism is equipped with a monitoring mechanism for monitoring whether wear and cracks appear on the surface of the steel cable. The monitoring mechanism includes high-speed cameras and pressure sensors. Four high-speed cameras are symmetrically installed below the winch mechanism and are aimed at the steel cable passing through the middle of it. Six pressure sensors are installed around the steel cable at equal angles.

[0009] The bottom of the steel cable is fixedly connected to a connecting mechanism. An alarm mechanism is installed on the connecting mechanism to promptly sound an alarm when loosening occurs. The alarm mechanism includes an alarm, a connecting rod, a contact plate, and a starting plate. The alarm is installed on the connecting mechanism. The connecting rod is slidably connected to the connecting mechanism. The starting plate and the contact plate are fixedly installed on the top and bottom surfaces of the connecting rod, respectively, and the starting plate is electrically connected to the alarm.

[0010] As a preferred embodiment of the present invention, the hoisting mechanism further includes a hoisting motor, a support frame, and a reel. The hoisting motor is mounted on the bottom surface of the fixed plate, the two support frames are fixedly fixed to the bottom surface of the fixed plate at intervals, the reel is rotatably connected between the two support frames, and one end of the reel is fixedly connected to the output end of the hoisting motor.

[0011] In a preferred embodiment of the present invention, a cable management mechanism is fixed on the support frame. The cable management mechanism includes a support plate, a sliding rod, a balance rod, a truss, and cable management rings. The support plate is fixedly connected to the support frame. The two ends of the sliding rod are fixed between the support plates. The two ends of the balance rod are fixed between the support plates. The truss is slidably connected to the sliding rod and the balance rod, and the truss has a U-shaped structure. The cable management rings are fixed at both ends of the truss, and the steel cable is slidably connected inside the two cable management rings.

[0012] As a preferred embodiment of the present invention, the monitoring mechanism further includes a mounting ring, a monitoring cylinder, fine-tuning springs, sliders, and buffer rollers. The mounting ring is fixed below the upper cable management ring, and the steel cable passes through the mounting ring. Four high-speed cameras are symmetrically mounted on the inner side of the mounting ring. The monitoring cylinder is fixed to the top surface of the lower cable management ring, and the steel cable passes through and is slidably connected to the inside of the monitoring cylinder. Six fine-tuning springs are arranged in an array inside the monitoring cylinder, and the height of the six fine-tuning springs decreases sequentially. Six sliders are arranged in an array and slidably connected to the inside of the monitoring cylinder, and each slider is connected to a corresponding fine-tuning spring. Each slider is rotatably connected to a buffer roller, and each buffer roller abuts against the steel cable. Six pressure sensors are arranged in an array inside the monitoring cylinder, and each slider abuts against a corresponding pressure sensor.

[0013] As a preferred embodiment of the present invention, the end of the steel cable is connected to a connecting mechanism, the connecting structure including a connecting hook, a locking head and a rotating head, the connecting hook being connected to the end of the steel cable, one end of the connecting hook being fixed with a locking head and the other end being fixed with a rotating head.

[0014] In a preferred embodiment of the present invention, a locking mechanism is installed on the connecting hook. The locking mechanism includes a locking rod, a locking groove, a base, a locking ring, and a torsion spring shaft. The torsion spring shaft is rotatably connected to the rotating head. The bottom end of the locking rod is rotatably connected to the rotating head through the torsion spring shaft. The top end of the locking rod is provided with the locking groove, and the locking head is slidably connected inside the locking groove. The base is fixed to the bottom end of the locking rod, and the locking ring is threadedly connected to the locking rod.

[0015] As a preferred embodiment of the present invention, the locking mechanism further includes a rotating base, side arms, and anti-disengagement tooth plates. The rotating bases are fixed on both sides of the bottom end of the locking rod, and the other two torsion spring shafts are rotatably connected to each of the rotating bases. The bottom ends of the two side arms are rotatably connected to the rotating bases through the torsion spring shafts. The anti-disengagement tooth plates are fixed at the ends of the side arms, and the anti-disengagement tooth plates cooperate with the toothed annular grooves on the surface of the locking ring.

[0016] In a preferred embodiment of the present invention, the alarm mechanism further includes a housing, a release switch, a warning plate, a sliding groove, a return spring, and an adjusting spring. Two housings are fixed to the top sides of the locking rod, and the alarm is installed inside each housing. One housing has a release switch installed inside it, and the release switch is electrically connected to the alarm. The warning plate is rotatably connected to the top surface of the housing with the release switch installed. A sliding groove is provided through the warning plate, and the release switch is slidably connected inside the sliding groove. A return spring is installed at one end of the warning plate, and the return spring abuts against the inside of the housing. A connecting rod is slidably connected to the bottom end of each housing. The adjusting spring is sleeved on the outside of the connecting rod. A starting plate and a stop plate are fixedly installed on the top and bottom surfaces of the connecting rod, respectively. The starting plate is electrically connected to the alarm, and the locking ring abuts against the stop plate.

[0017] As a preferred embodiment of the present invention, the bottom surface of the prompt board has a wedge-shaped structure, and the shoulder of the release switch abuts against the bottom surface of the prompt board.

[0018] Compared with the prior art, the advantages of this invention are:

[0019] 1. When the hoisting mechanism drives the steel cable to slide, the monitoring mechanism uses an array of pressure sensors to capture every dent and protrusion on the steel cable. Combined with a high-speed camera for precise capture, it can promptly detect cracks, breaks and wear on the surface of the steel cable and notify the back-end personnel for repair or replacement.

[0020] 2. The locking mechanism activates the alarm mechanism simultaneously with locking the connecting mechanism. When the locking ring becomes loose, the activation plate is no longer electrically connected to the alarm, thus activating the alarm to alert the actors and staff. Furthermore, the alarm mechanism includes a manual release switch, allowing actors to manually release the locking mechanism without triggering the alarm. A helpful feature is the indicator panel that pops up when the release switch is slid, showing the status of the release switch for the next use.

[0021] 3. The locking mechanism is equipped with an anti-detachment toothed plate that is adjustable via a torsion spring shaft. The anti-detachment toothed plate can prevent the locking ring from accidentally loosening and falling off, thus avoiding the locking ring losing its locking function and causing the connecting mechanism to release the safety belt, thereby improving safety. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the cable management mechanism and the detection mechanism of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the monitoring cylinder of the present invention;

[0026] Figure 5 This is a schematic diagram of the unlocked state structure of the locking mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the locking mechanism of the present invention in the locked state.

[0028] Figure 7 This is a schematic cross-sectional view of the locking mechanism and alarm mechanism of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B;

[0030] Figure 9 This is a schematic diagram of the structure of the release switch and the indicator panel of the present invention.

[0031] Explanation of the labels in the diagram:

[0032] 1. Fixed plate; 2. Hoisting mechanism; 21. Hoisting motor; 22. Support frame; 23. Reel; 24. Steel cable; 3. Cable management mechanism; 31. Support plate; 32. Sliding rod; 33. Balance bar; 34. Truss; 35. Cable management ring; 4. Monitoring mechanism; 41. Mounting ring; 42. High-speed camera; 43. Monitoring cylinder; 44. Fine-tuning spring; 45. Slider; 46. Buffer roller; 47. Pressure sensor; 5. Connecting mechanism; 51. Connecting... 52. Hook, 53. Lock head, 6. Turning head, 6. Locking mechanism, 61. Locking rod, 62. Locking groove, 63. Chassis, 64. Locking ring, 65. Rotating seat, 66. Torsion spring shaft, 67. Side arm, 68. Anti-detachment tooth plate, 79. Alarm mechanism, 71. Housing, 72. Alarm, 73. Release switch, 74. Indicator plate, 75. Sliding groove, 76. Return spring, 77. Adjusting spring, 78. Connecting rod, 79. Abutment plate, 791. Starter plate. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1-9 As shown, a stage safety real-time monitoring device includes:

[0035] A fixed plate 1 is provided, and a winch mechanism 2 is installed at the bottom of the fixed plate 1. The winch mechanism 2 includes a steel cable 24, which is rotatably connected to the bottom of the fixed plate 1.

[0036] The winch mechanism 2 is equipped with a monitoring mechanism 4 for monitoring whether wear and cracks appear on the surface of the steel cable 24. The monitoring mechanism 4 includes a high-speed camera 42 and a pressure sensor 47. Four high-speed cameras 42 are symmetrically installed below the winch mechanism 2 and are aimed at the steel cable 24 passing through the middle of it. Six pressure sensors 47 are installed around the steel cable 24 at equal angles.

[0037] The bottom of the steel cable 24 is fixedly connected to a connecting mechanism 5. An alarm mechanism 7 is installed on the connecting mechanism 5 to promptly sound an alarm when loosening occurs. The alarm mechanism 7 includes an alarm 72, a connecting rod 78, a contact plate 79, and a starting plate 791. The alarm 72 is installed on the connecting mechanism 5. The connecting rod 78 is slidably connected to the connecting mechanism 5. The starting plate 791 and the contact plate 79 are fixedly installed on the top and bottom surfaces of the connecting rod 78, respectively, and the starting plate 791 is electrically connected to the alarm 72.

[0038] In a further embodiment, when the hoisting mechanism 2 winds up and releases the steel cable 24, the steel cable 24 slides within the detection mechanism 4. Through the sliding of the steel cable 24, the high-speed camera 42 captures real-time images of the surface of the steel cable 24. In addition, six buffer rollers 46 inside the monitoring cylinder 43 are distributed around the steel cable 24. Once the surface of the steel cable 24 shows wear such as dents or protrusions, the buffer rollers 46 act on the pressure sensor 47 through displacement. Combined with the images captured by the high-speed camera 42, a comprehensive comparison is made. When cracks or breaks are found on the surface of the steel cable 24, an alarm will be promptly issued to the back-end personnel. The locking of the connecting mechanism 5 is achieved through the locking ring 64. Once the locking ring 64 loosens, the contact plate 79 it contacts will release the start plate 791. When the start plate 791 loses contact with the alarm 72, an alarm will be issued to the back-end personnel, thereby promptly detecting safety issues.

[0039] Specifically, the hoisting mechanism 2 further includes a hoisting motor 21, a support frame 22, and a reel 23. The hoisting motor 21 is mounted on the bottom surface of the fixed plate 1, and the two support frames 22 are fixedly fixed to the bottom surface of the fixed plate 1 at intervals. The reel 23 is rotatably connected between the two support frames 22, and one end of the reel 23 is fixedly connected to the output end of the hoisting motor 21.

[0040] In a further embodiment, the winch motor 21 drives the reel 23 to rotate forward and backward on the support frame 22, thereby realizing the winding and releasing of the steel cable 24.

[0041] Specifically, a cable management mechanism 3 is fixed on the support frame 22. The cable management mechanism 3 includes a support plate 31, a sliding rod 32, a balance rod 33, a truss 34, and cable management rings 35. The support plate 31 is fixedly connected to the support frame 22. The two ends of the sliding rod 32 are fixed between the support plates 31. The two ends of the balance rod 33 are fixed between the support plates 31. The truss 34 is slidably connected to the sliding rod 32 and the balance rod 33, and the truss 34 has a U-shaped structure. The cable management rings 35 are fixed at both ends of the truss 34, and the steel cable 24 is slidably connected inside the two cable management rings 35.

[0042] In a further embodiment, the steel cable 24 passes through the cable management rings 35 at both ends of the truss 34, which slide on the sliding rod 32. The balance bar 33 ensures that the truss 34 does not sway or tilt. The cable management mechanism 3 restricts the position of the steel cable 24, thereby allowing the steel cable 24 to be wound orderly on the reel 23. At the same time, the U-shaped structure of the truss 34, together with the cable management rings 35, ensures that the steel cable 24 between the two cable management rings 35 on the truss 34 always slides vertically, thus facilitating monitoring by the monitoring mechanism 4 and preventing the steel cable 24 from swaying at multiple angles.

[0043] Specifically, the monitoring mechanism 4 further includes a mounting ring 41, a monitoring cylinder 43, a fine-tuning spring 44, a slider 45, and a buffer roller 46. The mounting ring 41 is fixed below the upper cable management ring 35, and the steel cable 24 passes through the mounting ring 41. Four high-speed cameras 42 are symmetrically mounted on the inner side of the mounting ring 41. The monitoring cylinder 43 is fixed to the top surface of the lower cable management ring 35, and the steel cable 24 passes through and is slidably connected to the inside of the monitoring cylinder 43. Six fine-tuning springs 44 are arranged in an array. The six fine-tuning springs 44 are installed inside the monitoring cylinder 43, and their heights decrease sequentially. The six sliders 45 are slidably connected in an array inside the monitoring cylinder 43, and each slider 45 is connected to a corresponding fine-tuning spring 44. Each slider 45 is rotatably connected to a buffer roller 46, and each buffer roller 46 abuts against the steel cable 24. The six pressure sensors 47 are installed in an array inside the monitoring cylinder 43, and each slider 45 is abutting against a corresponding pressure sensor 47.

[0044] In a further embodiment, four high-speed cameras 42 are symmetrically arranged within the mounting ring 41, covering all angles of the passing steel cable 24, and any defects will be recorded. When the steel cable 24 passes through the monitoring cylinder 43, several buffer rollers 46 inside it are kept in close contact with the surface of the steel cable 24 by the elasticity of the fine-tuning spring 44. When the surface of the steel cable 24 has a depression or bulge, the buffer rollers 46 are kept in close contact with the surface of the steel cable 24 under the elastic force of the fine-tuning spring 44, thereby driving the slider 45 to slide, which in turn acts on the pressure sensor 47. The pressure sensor 47 records relevant information. With the clear shooting of the high-speed cameras 42, various defects and problems on the surface of the steel cable 24 can be clearly identified. Once cracks or breaks occur, an alarm will be promptly issued to the back-end personnel.

[0045] Specifically, the end of the steel cable 24 is connected to a connecting mechanism 5. The connecting mechanism includes a connecting hook 51, a lock head 52, and a rotating head 53. The connecting hook 51 is connected to the end of the steel cable 24. One end of the connecting hook 51 is fixed with the lock head 52, and the other end is fixed with the rotating head 53.

[0046] In a further embodiment, the connecting hook 51 is connected to the safety belt on the actor's body, and then the winch mechanism 2 is used to retract and release the hook, thereby enabling the actor to fly, glide and perform other actions in the air. The lock head 52 works with the locking mechanism 6 to close the gap, and the rotating head 53 is used for the rotational connection of the locking mechanism 6.

[0047] Specifically, a locking mechanism 6 is installed on the connecting hook 51. The locking mechanism 6 includes a locking rod 61, a locking groove 62, a base 63, a locking ring 64, and a torsion spring shaft 66. The torsion spring shaft 66 is rotatably connected to the rotating head 53. The bottom end of the locking rod 61 is rotatably connected to the rotating head 53 through the torsion spring shaft 66. The top end of the locking rod 61 is provided with the locking groove 62, and the locking head 52 is slidably connected inside the locking groove 62. The bottom end of the locking rod 61 is fixed to the base 63, and the locking ring 64 is threadedly connected to the locking rod 61.

[0048] In a further embodiment, the locking rod 61 is rotatably connected to the rotating head 53 of the connecting mechanism 5 via a torsion spring shaft 66. When an external force presses the locking rod 61, the locking rod 61 rotates, the locking groove 62 separates from the lock head 52, the notch opens, and the seat belt can be installed in the connecting hook 51. After the external force is removed, the elastic force of the torsion spring shaft 66 causes the locking rod 61 to rotate back, and the locking groove 62 on the locking rod 61 engages with the lock head 52. Then, the locking ring 64 is rotated, and the locking ring 64 rises through the threads on the surface of the locking rod 61, finally fitting around the outside of the locking groove 62 and wrapping around the lock head 52, so that the locking rod 61 can no longer rotate. Similarly, reversing the locking ring 64 to return it to the chassis 63 can release the lock.

[0049] Specifically, the locking mechanism 6 further includes a rotating base 65, side arms 67, and anti-detachment toothed plates 68. The rotating base 65 is fixed on both sides of the bottom end of the locking rod 61, and the other two torsion spring shafts 66 are rotatably connected to each of the rotating base 65. The bottom ends of the two side arms 67 are rotatably connected to the rotating base 65 through the torsion spring shafts 66. The anti-detachment toothed plates 68 are fixed at the ends of the side arms 67, and the anti-detachment toothed plates 68 cooperate with the toothed annular grooves on the surface of the locking ring 64.

[0050] In a further embodiment, during the upward movement of the locking ring 64, the annular toothed groove on the outer side of the locking ring 64 gradually engages with the anti-detachment toothed plate 68 on the side arms 67 on both sides of the locking rod 61. Moreover, the side arms 67 and the rotating seat 65 are rotatably connected by a torsion spring shaft 66. Every time the locking ring 64 rises a little, it pushes the side arms 67 to expand outward. However, during the use of the connecting mechanism 5, when the locking ring 64 loosens and is about to fall off, the torsion spring shaft 66 causes the two side arms 67 to clamp the anti-detachment toothed plate 68. Furthermore, the special annular toothed groove on the outer wall of the locking ring 64, combined with the anti-detachment toothed plate 68, can prevent the locking ring 64 from falling off, thereby preventing the locking mechanism 6 from being unlocked.

[0051] Specifically, the alarm mechanism 7 further includes a housing 71, a release switch 73, an indicator plate 74, a sliding groove 75, a reset spring 76, and an adjusting spring 77. Two housings 71 are fixed to the top sides of the locking rod 61, and the alarm 72 is installed inside each housing 71. One of the housings 71 has a release switch 73 installed inside, and the release switch 73 is electrically connected to the alarm 72. The indicator plate 74 is rotatably connected to the top surface of the housing 71 on which the release switch 73 is installed. A through-hole is provided on the indicator plate 74. The sliding groove 75 is provided, and the release switch 73 is slidably connected inside the sliding groove 75. A reset spring 76 is installed at one end of the indicator plate 74, and the reset spring 76 abuts against the inside of the outer shell 71. The connecting rod 78 is slidably connected to the bottom end of each outer shell 71. The adjusting spring 77 is sleeved on the outside of the connecting rod 78. The top surface and bottom surface of the connecting rod 78 are respectively fixedly installed with the start plate 791 and the abutment plate 79. The start plate 791 is electrically connected to the alarm 72, and the locking ring 64 abuts against the abutment plate 79.

[0052] In a further embodiment, after the locking ring 64 is locked, the connecting rod 78 is pressed into the housing 71 by the abutment plate 79, the adjusting spring 77 contracts, and the starting plate 791 is electrically connected to the alarm 72, which is then activated. If the locking ring 64 accidentally loosens and falls off, it will lose the pressure on the abutment plate 79. Under the elastic force of the adjusting spring 77, the connecting rod 78 slides out of the housing 71, simultaneously moving the abutment plate 79 and the starting plate 791. The abutment plate 79 resets, the starting plate 791 is no longer electrically connected to the alarm 72, and the alarm 72 immediately sounds an alarm to notify the actors and backstage staff. When the actor actively releases the lock of the connecting mechanism 5, they must first push the release switch 73 in the sliding groove 75 inside the top indicator plate 74 of the outer casing 71. The release switch 73 slides from one end of the sliding groove 75 to the other end, which not only turns off the alarm 72, but also its shoulder cooperates with the bottom surface of the indicator plate 74, making one end of the indicator plate 74 protrude outwards from the top surface of the casing 71. At the same time, the indicator plate 74 compresses the return spring 76 inside the outer casing 71, and then the lock is released through the locking mechanism 6, so the alarm 72 will not sound. The protrusion of the indicator plate 74 can indicate to the user that the release switch 73 has turned off the alarm 72. Before the next use, the user can clearly understand the status of the release switch 73. When the release switch 73 turns off the alarm 72, the user slides the release switch 73 in the opposite direction, the alarm 72 is activated, and at the same time the return spring 76 is reset, and the indicator plate 74 is pushed back to the initial position.

[0053] Specifically, the bottom surface of the indicator panel 74 has a wedge-shaped structure, and the shoulder of the release switch 73 abuts against the bottom surface of the indicator panel 74.

[0054] In a further embodiment, the bottom surface of the prompt plate 74 is inclined, so that when the release switch 73 slides, its shoulder abuts against the bottom surface of the prompt plate 74, causing one end of the prompt plate 74 to tilt up, thus providing a prompt to the user.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A stage safety real-time monitoring device, characterized in that, include: A fixed plate is provided, and a winch mechanism is installed at the bottom of the fixed plate. The winch mechanism includes a steel cable, which is rotatably connected to the bottom of the fixed plate. The winch mechanism is equipped with a monitoring mechanism for monitoring whether wear and cracks appear on the surface of the steel cable. The monitoring mechanism includes high-speed cameras and pressure sensors. Four high-speed cameras are symmetrically installed below the winch mechanism and are aimed at the steel cable passing through the middle of it. Six pressure sensors are installed around the steel cable at equal angles. A connecting mechanism is fixedly connected to the bottom of the steel cable. An alarm mechanism is installed on the connecting mechanism to promptly sound an alarm when loosening occurs. The alarm mechanism includes an alarm, a connecting rod, a contact plate, and a start plate. The alarm is installed on the connecting mechanism. The connecting rod is slidably connected to the connecting mechanism. The start plate and the contact plate are fixedly installed on the top and bottom surfaces of the connecting rod, respectively, and the start plate is electrically connected to the alarm. The monitoring mechanism also includes a mounting ring, a monitoring cylinder, fine-tuning springs, sliders, and buffer rollers. The mounting ring is fixed below the upper cable management ring, and a steel cable passes through the mounting ring. Four high-speed cameras are symmetrically mounted inside the mounting ring. The monitoring cylinder is fixed to the top surface of the lower cable management ring, and a steel cable passes through and slides inside the monitoring cylinder. Six fine-tuning springs are arranged in an array inside the monitoring cylinder, with the height of the six fine-tuning springs decreasing sequentially. Six sliders are arranged in an array and slide inside the monitoring cylinder, with each slider connected to a corresponding fine-tuning spring. Each slider is rotatably connected to a buffer roller, and each buffer roller abuts against the steel cable. Six pressure sensors are arranged in an array inside the monitoring cylinder, with each slider abutting against a corresponding pressure sensor. The alarm mechanism also includes a housing, a release switch, an indicator plate, a sliding groove, a return spring, and an adjusting spring. Two housings are fixed to the top of the locking rod on both sides, and an alarm is installed inside the housing. One of the housings has a release switch installed inside, and the release switch is electrically connected to the alarm. The indicator plate is rotatably connected to the top surface of the housing with the release switch installed. A sliding groove is provided through the indicator plate, and the release switch is slidably connected inside the sliding groove. A return spring is installed at one end of the indicator plate, and the return spring abuts against the inside of the housing. A connecting rod is slidably connected to the bottom end of each housing. An adjusting spring is sleeved on the outside of the connecting rod. A starting plate and a stop plate are fixedly installed on the top and bottom surfaces of the connecting rod, respectively. The starting plate is electrically connected to the alarm, and the locking ring abuts against the stop plate.

2. The stage safety real-time monitoring device according to claim 1, characterized in that: The winch mechanism also includes a winch motor, support frames, and a reel. The winch motor is mounted on the bottom surface of the fixed plate, and two support frames are fixed to the bottom surface of the fixed plate at intervals. The reel is rotatably connected between the two support frames, and one end of the reel is fixedly connected to the output end of the winch motor.

3. The stage safety real-time monitoring device according to claim 2, characterized in that: A cable management mechanism is fixed on the support frame. The cable management mechanism includes a support plate, a sliding rod, a balance rod, a truss, and cable management rings. The support plate is fixedly connected to the support frame. The two ends of the sliding rod are fixed between the support plates. The two ends of the balance rod are fixed between the support plates. The truss is slidably connected to the sliding rod and the balance rod. The truss has a U-shaped structure. Cable management rings are fixed at both ends of the truss. Steel cables are slidably connected inside the two cable management rings.

4. The stage safety real-time monitoring device according to claim 1, characterized in that: The end of the steel cable is connected to a connecting mechanism, which includes a connecting hook, a lock, and a rotating head. The connecting hook is connected to the end of the steel cable, with a lock fixed at one end and a rotating head fixed at the other end.

5. The stage safety real-time monitoring device according to claim 4, characterized in that: The connecting hook is equipped with a locking mechanism, which includes a locking rod, a locking groove, a base, a locking ring, and a torsion spring shaft. The torsion spring shaft is rotatably connected to the rotating head. The bottom end of the locking rod is rotatably connected to the rotating head through the torsion spring shaft. The top end of the locking rod is provided with a locking groove, and the locking head is slidably connected inside the locking groove. The bottom end of the locking rod is fixed with a base, and the locking ring is threadedly connected to the locking rod.

6. The stage safety real-time monitoring device according to claim 5, characterized in that: The locking mechanism also includes a rotating base, side arms, and anti-disengagement tooth plates. The bottom ends of the locking rod are fixed with rotating bases on both sides, and two other torsion spring shafts are rotatably connected to each rotating base. The bottom ends of the two side arms are rotatably connected to the rotating bases through torsion spring shafts. The ends of the side arms are fixed with anti-disengagement tooth plates, and the anti-disengagement tooth plates cooperate with the toothed ring grooves on the surface of the lock ring.

7. The stage safety real-time monitoring device according to claim 1, characterized in that: The bottom of the indicator panel has a wedge-shaped structure, and the shoulder of the release switch abuts against the bottom of the indicator panel.

Images