An anti-skid device for elevator cable drum and its slip detection system

Abstract

The present invention provides an anti-skid device for an elevator cable winch and a slip detection system thereof, and relates to the field of lifting equipment. The present invention includes a winch device, a brake and a controller, a key shaft structure is provided on one side of the winch device, the key shaft structure includes a plurality of tooth grooves, a winch key shaft and an extension block, a plurality of storage grooves are provided on the outer side of the extension block, and expansion pieces are provided inside the plurality of storage grooves, and a speed sensor is provided on one side of the winch key shaft; the arrangement of the pressure control assembly, the outer box, the extension block and the plurality of expansion pieces ensures that only when the moving block moves upward, the clockwise rotation of the winch key shaft is blocked and restricted, and the winch key shaft can be operated only after it has anti-skid protection, so as to avoid the situation that the staff is not skilled in operation, resulting in the brake being operated to release the brake limit of the winch device, and cannot apply enough force to the winch key shaft, resulting in the winch key shaft being able to rotate clockwise, and the elevator bridge box sliding down.

Description

Technical Field

[0001] The invention relates to an anti-skid device, in particular to an anti-skid device of an elevator cable drum and a slip detection system thereof, belonging to the technical field of lifting equipment. Background Art

[0002] Elevators have become the world's largest vertical transportation tool, carrying billions of passengers every day, and are an indispensable part of human life. Elevator maintenance is similar to regular car maintenance. Cars need routine maintenance at a certain stage of operation, and the same is true for elevators as mechanical transportation products. The so-called elevator maintenance refers to the regular inspection of elevator components, refueling, dust removal, safety device debugging, rescue, and other work by professional elevator maintenance personnel.

[0003] The elevator winch is used to raise the elevator to the machine room or the top floor to facilitate maintenance. Before manually turning the elevator, cut off the main power switch, insert the winch handwheel into the winch device key shaft, and disconnect the safety circuit with the winch safety switch. One person pulls the brake release handle to release the brake, and the other person pulls the winch handwheel to slowly move the car. Confirm the car level position from the traction rope floor mark, stop the winch, and reset the brake.

[0004] However, during the manual operation of the winch, the brake cannot play a role in braking and speed limiting, resulting in the winch and the elevator bridge box losing control and falling after the worker's hand slips. There is a time difference in communication between the two personnel or the meaning is not conveyed in time, which can easily cause accidents, especially when rescuing people inside the elevator bridge box, resulting in secondary injuries to people. Summary of the invention

[0005] To solve the above problems, the present invention is implemented through the following technical solutions: an anti-skid device for an elevator cable winch and a slip detection system thereof, comprising a winch device, a brake and a controller, a key shaft structure is arranged on one side of the winch device, the key shaft structure comprises a plurality of tooth grooves, a winch key shaft and an extension block, a plurality of receiving grooves are arranged on the outer side of the extension block, expansion pieces are arranged inside the plurality of receiving grooves, and a rotation speed sensor is arranged on one side of the winch key shaft;

[0006] The bottom of the turning wheel key shaft is provided with an anti-skid structure, and the anti-skid structure includes a fixed plate and an installation box, a plurality of tooth plates are provided on the top of the fixed plate, and the plurality of tooth plates are meshed with the turning wheel key shaft through tooth grooves, and torsion springs are fixedly connected to the tooth plates on both sides, and a through groove and a moving block 1 are provided on one side of the plurality of tooth plates. The moving block 1 is fixedly connected to the installation box, and a spring, a pressure sensor 2, two electromagnets and a fixing frame 3 are provided inside the installation box, and a fixing frame 4 is fixedly connected to one side of the fixing frame 3, and the fixing frame 4 is connected to two limit rods, and a plurality of moving blocks 2 are sleeved on the outer side of one of the limit rods, and a pressure sensor 1 is provided on the top of one of the moving blocks 2, and two pneumatic telescopic rods are provided at the bottom of the installation box, and an air guide tube 1 is fixedly connected between the two pneumatic telescopic rods, and an outer box is rotatably sleeved on the outer side of the extension block, and a pressure control component is provided between the outer box and the air guide tube 1.

[0007] Preferably, the controller includes two signal lights, an up button and a down button, the brake includes a brake handle release, a fixing frame is fixedly connected between the expansion piece and the extension block, the tooth groove is opened on the outside of the turning key shaft, and the extension block is fixedly connected to one end of the turning key shaft.

[0008] Preferably, a fixing frame 2 is installed inside the plurality of tooth plates and the plurality of torsion springs, the fixing frame 2 is fixedly connected to a fixing plate 1, the through groove is opened at the top of the fixing plate 1, the top ends of the plurality of moving blocks 1 respectively penetrate the plurality of through grooves and extend to the top of the fixing plate 1, and the top ends of the moving blocks 1 are fixedly connected to a limiting plate.

[0009] Preferably, a plurality of square tubes are fixedly connected to the bottom of the fixing plate, a circular hole is opened on one side of the plurality of square tubes, a square groove is opened at the bottom of the fixing plate, and the top end of the pressure sensor is arranged inside the square groove and fixedly connected to the fixing plate.

[0010] Preferably, the other limiting rod passes through a portion of the moving block 1, and a fixing frame 5 is fixedly connected between the two limiting rods and the fixing frame 4, and a portion of the fixing frame 4 passes through one side of the installation box and is arranged outside the installation box.

[0011] Preferably, the spring is fixedly connected between the installation box and the third fixing frame, and a plurality of the springs are provided. The electromagnet and the second pressure sensor are both fixedly connected to the third fixing frame, and two electromagnets are provided.

[0012] Preferably, a second fixing plate is fixedly connected between the two pneumatic telescopic rods, one end of the second fixing plate is fixedly connected to the turning device, and a magnet plate is fixedly connected between the top ends of the two pneumatic telescopic rods.

[0013] Preferably, the pressure control assembly includes a piston cylinder, which is fixedly connected to the turning device, a piston is slidably connected inside the piston cylinder, the bottom end of the piston passes through the piston cylinder and extends to the bottom of the outer side of the piston cylinder, the bottom end of the piston is fixedly connected to a pneumatic cylinder, and a fixed plate three is fixedly connected between the pneumatic cylinder and the turning device.

[0014] Preferably, the pressure control assembly includes an air guide tube 2, which is fixedly connected to one side of the outer box, a three-way valve is fixedly connected between one end of the air guide tube 2 and the piston cylinder, and the normally closed end of the three-way valve is fixedly connected to the air guide tube 1.

[0015] A slip detection system for an elevator cable drum. The slip detection system is arranged inside a controller. The slip detection system comprises a command reading module, a control module, an electrical signal path module, a pressure recognition module, a work recording module, an operation simulation module, an auxiliary voice package, a face recognition module, a 4G communication module and a camera.

[0016] The present invention provides an anti-skid device for an elevator cable drum and a slip detection system thereof, which have the following beneficial effects:

[0017] 1. The anti-skid device and the slip detection system of the elevator cable winch, the pressure control assembly, the outer box, the extension block and the multiple expansion parts are set to ensure that the clockwise rotation of the winch key shaft is blocked and restricted only when the moving block moves up. The winch key shaft can be operated only after it has anti-skid protection, so as to avoid the situation that the brake is released by the unskilled operator and the brake limit of the winch device is released, and the winch key shaft cannot be applied with sufficient force, so that the winch key shaft can rotate clockwise and the elevator bridge box slides down, thereby reducing accidents;

[0018] 2. The anti-skid device and the slip detection system of the elevator cable winch, the gear plate meshes with the winch key shaft to brake the winch key shaft. When the winch key shaft rotates too fast, the winch key shaft is automatically braked to prevent the winch key shaft from losing control and causing the elevator bridge box to fall out of control. This ensures the stability of the elevator bridge box moving downwards through the elevator cable winch structure, reducing safety hazards.

[0019] 3. The anti-skid device and the slip detection system of the elevator cable winch, when the controller determines again that the received speed data exceeds the preset speed 2, the controller controls the electrically connected pneumatic cylinder to work, the fixed frame 3 drives the fixed frame 4 and the fixed frame 5 to move, and the two fixed frames 5 drive the two limit plugs to move. Under the action of the two limit plugs, the moving block 1 and the square tube are limited to move downward, and the moving block 1 is limited by the clockwise rotation of the winch key shaft, so as to avoid the situation that the winch key shaft can rotate clockwise and cause the elevator bridge box to slide down, thereby reducing the occurrence of safety accidents;

[0020] 4. The anti-skid device and slip detection system of the elevator wire rope winch, the operation simulation module simulates the distance between the elevator bridge box and the upper and lower elevator doors according to the numerical values ​​recorded in the work record module, and the operation simulation module generates an "upward, counterclockwise operation" suggestion and displays it on the controller display screen, which can reasonably suggest the operating method for the staff and reduce the physical input of the staff. The face recognition module recognizes the appearance of the staff to determine whether they are staff members. If they are staff members, when the judgment result is not a staff member, the internal alarm voice of the auxiliary voice package is fed back to the management personnel through the 4G communication module, and the alarm voice is played through the speaker on the controller to persuade people who enter the winch device and the brake to leave. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of part B;

[0023] Figure 3 It is a structural schematic diagram of the anti-skid structure of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the outer box of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the motion block 1 of the present invention;

[0026] Figure 6 It is a partial structural schematic diagram of the installation box of the present invention;

[0027] Figure 7 It is a structural schematic diagram of a square tube of the present invention;

[0028] Figure 8 It is a partial structural schematic diagram of the motion block 2 of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the slip detection system of the present invention.

[0030] Explanation of the reference numerals: 1. winch device; 2. key shaft structure; 20. tooth groove; 21. winch key shaft; 22. extension block; 23. storage groove; 24. fixed frame one; 25. expansion piece; 3. brake; 31. brake handle release; 4. anti-skid structure; 41. fixed plate one; 42. fixed frame two; 43. torsion spring; 44. tooth plate; 45. through groove; 46. limit plate; 47. moving block one; 48. installation box; 49. fixed frame three; 410. electromagnet; 411. pressure sensor two; 412. spring; 413. fixed frame four; 414. fixed frame five; 415. limit rod; 416. moving block two; 417. square tube; 418. round hole; 419. pressure sensor one; 420. square groove; 4 23. Magnet plate; 425. Fixed plate 2; 426. Pneumatic telescopic rod; 427. Air duct 1; 428. Piston cylinder; 429. Three-way valve; 431. Air duct 2; 432. Outer box; 433. Piston; 434. Pneumatic cylinder; 435. Fixed plate 3; 5. Controller; 51. Signal light; 52. Up button; 53. Down button; 54. Slip detection system; 5401. Command reading module; 5402. Control module; 5403. Electrical signal path module; 5404. Pressure identification module; 5405. Work record module; 5406. Operation simulation module; 5407. Auxiliary voice package; 5408. Face recognition module; 5409. 4G communication module; 5410. Camera; 6. Speed ​​sensor. DETAILED DESCRIPTION

[0031] The embodiment of the present invention provides an anti-skid device for an elevator cable drum and a slip detection system thereof.

[0032] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9, including a turning device 1, a brake 3 and a controller 5, a key shaft structure 2 is arranged on one side of the turning device 1, the key shaft structure 2 includes a plurality of tooth grooves 20, a turning key shaft 21 and an extension block 22, a plurality of receiving grooves 23 are arranged on the outer side of the extension block 22, and expansion members 25 are arranged inside the plurality of receiving grooves 23, and a speed sensor 6 is arranged on one side of the turning key shaft 21; an anti-skid structure 4 is arranged on the bottom of the turning key shaft 21, the anti-skid structure 4 includes a fixed plate 41 and an installation box 48, a plurality of tooth plates 44 are arranged on the top of the fixed plate 41, the plurality of tooth plates 44 are meshed with the turning key shaft 21 through the tooth grooves 20, torsion springs 43 are fixedly connected on both sides of the tooth plates 44, and a through groove 45 and a moving block 4 are arranged on the bottom of one side of the plurality of tooth plates 44. 7. The motion block 1 47 is fixedly connected to the installation box 48. A spring 412, a pressure sensor 2 411, two electromagnets 410 and a fixing frame 3 49 are arranged inside the installation box 48. A fixing frame 413 is fixedly connected to one side of the fixing frame 3 49. The fixing frame 413 is connected to two limit rods 415. A plurality of motion blocks 2 416 are sleeved on the outer side of one of the limit rods 415. A pressure sensor 1 419 is arranged on the top of one of the motion blocks 2 416. Two pneumatic telescopic rods 426 are arranged at the bottom of the installation box 48. An air guide tube 1 427 is fixedly connected between the two pneumatic telescopic rods 426. An outer rotatable sleeve of the extension block 22 is provided. A pressure control component is arranged between the outer box 432 and the air guide tube 1 427.

[0033] Specifically, when the staff needs to operate the turning device 1, when the suggestion displayed on the controller 5 is "upward, counterclockwise operation", the staff chooses to rotate the turning key shaft 21 counterclockwise to move the elevator bridge box up, and the staff presses the upward button 52. At this time, the signal light 51 representing the prohibited operation of the two signal lights 51 on the controller 5 lights up, and the signal light 51 is red; at the same time, the controller 5 controls the electrically connected pressure sensor 1 419 to work. At this time, the fixed frame 3 49 is fixedly held and fixedly connected to one side with the fixed frame 413. Since the fixed frame 413 partially penetrates one side of the installation box 48 and is arranged on the outside of the installation box 48, the fixed frame 413 drives the fixedly connected fixed frame 3 49 to move inside the installation box 48. After the fixed frame 3 49 moves a certain distance, it contacts the inner wall of one side of the installation box 48 and the movement is blocked. In this process, since the two limit rods 415 are fixedly connected to the fixed frame 5 414 between the fixed frame 413, as shown in FIG. Figure 6As shown, the fixing frame four 413 drives the two limiting plug rods 415 to move through the fixing frame five 414, so that one of the two limiting plug rods 415 is separated from the multiple movement blocks two 416 sleeved on the outside, and the other limiting plug rod 415 is separated from the multiple movement blocks one 47 on the outside, and the two limiting plug rods 415 no longer affect the upward movement of the multiple movement blocks two 416 and the multiple movement blocks one 47. Then the staff pulls the fixing frame four 413 to move up, and the fixing frame four 413 drives the installation box 48 to move up, and the installation box 48 drives the movement block two 416 and the movement block one 47 to move up. Since the multiple through grooves 45 are all opened on the top of the fixing plate one 41, and the tops of the multiple movement blocks one 47 respectively penetrate the multiple through grooves 45 and extend to the top of the fixing plate one 41, the fixing plate one 41 will not hinder the upward movement of the movement block one 47 but limit the movement block one 47, and the movement block one 47 can only move up and down. Finally, part of the multiple movement blocks one 47 moves to one side of the multiple tooth plates 44;

[0034] A plurality of square tubes 417 are fixedly connected to the bottom of the fixing plate 41. Figure 3 and Figure 5As shown, the multiple square tubes 417 correspond one-to-one with the multiple movement blocks 2 416 and the multiple movement blocks 1 47, and the movement block 1 47 penetrates the square tube 417, increasing the limiting area of ​​the movement block 1 47 in the left and right front and back displacement, and reducing the possibility of deformation and bending of the movement block 1 47. When the upward movement block 2 416 is inserted into the square tube 417 and abuts against the fixed plate 1 41, the inner cavity of the movement block 2 416 and the inner cavity of the movement block 1 47 correspond one-to-one with the circular holes 418 opened on one side of the multiple square tubes 417. At this time, the staff releases the fixing frame 413. Since the spring 412 is fixedly connected between the installation box 48 and the fixing frame 3 49, the two springs 412 rebound and drive the installation box 48 to reset, and the fixing frame 4 413 resets. A limiting rod 415 penetrates part of the movement block 2 416 and the movement block 2 41 6, another limiting rod 415 penetrates part of the moving block 1 47 and the circular hole 418 of the square tube 417 outside the moving block 1 47. Under the action of the two limiting rods 415, the moving block 1 47 and the square tube 417 move downward and are limited, and the fixing plate 1 41 is fixedly connected to the turning device 1. The moving block 1 47 cannot move up and down at this time. At the same time, there are two springs 412 that continuously apply tension to the fixing frame 3 49, the fixing frame 413 and the limiting rod 415 to ensure that the limiting rod 41 5. The stability of the limit of the moving block 47. At this time, multiple moving blocks 47 are set to one side of multiple tooth plates 44 to limit the rotation of the tooth plates 44, so that the tooth plates 44 can only rotate clockwise and cannot rotate counterclockwise; multiple tooth grooves 20 are opened on the outer side of the turning key shaft 21, and multiple tooth plates 44 are meshed with the turning key shaft 21 through the tooth grooves 20. Under the condition that the tooth plate 44 can only rotate clockwise, the turning key shaft 21 can only rotate counterclockwise, and the anti-skid effect is achieved by the cooperation of multiple tooth plates 44 and the turning key shaft 21. Even if one tooth plate 44 rotates clockwise, the turning key shaft 21 can only rotate counterclockwise. Plate 44 cannot play a role due to wear and deformation, and the remaining tooth plates 44 still apply a limiting force to the winch key shaft 21 to prevent the staff from slipping or operating improperly, which causes the control force applied to the winch key shaft 21 to decrease. The elevator moves down and drives the winch key shaft 21 of the winch device 1 to rotate clockwise and is restricted by the tooth plate 44, causing a secondary accident to occur through the fall of the wire rope winch, thereby ensuring the stability of the rescue of people inside the elevator; at this time, the red signal light 51 goes out, and another signal light 51 representing that operation is possible lights up, and this signal light 51 is green.

[0035] A square groove 420 is provided at the bottom of the fixing plate 41, and the top of the pressure sensor 419 is arranged inside the square groove 420 and fixedly connected to the fixing plate 41. When one of the moving blocks 416 abuts against the turning device 1, it abuts against the pressure sensor 419, so that the pressure sensor 419 detects pressure. At this time, the controller 5 electrically connected to the pressure sensor 419 receives feedback from the pressure sensor 419, and the controller 5 controls the pressure control component to work. At this time, the pneumatic cylinder 434 in the pressure control component works and contracts. Since the piston 433 is connected to the piston cylinder 428 in the pressure control component through sliding, the bottom end of the piston 433 passes through the piston cylinder 428 and then The air cylinder 434 extends to the bottom of the outer side of the piston cylinder 428, and the contracted air cylinder 434 drives the fixedly connected piston 433 to move downward. The piston 433 slides downward in the piston cylinder 428, and the three-way valve 429 fixedly connected at one end of the air guide pipe 431 is fixedly installed on the top of one side of the piston cylinder 428, and the outer box 432 fixedly connected at one end of the air guide pipe 431 is rotatably installed on the outer side of the extension block 22. Therefore, during the downward movement of the piston 433, the three-way valve 429 is extracted, and the air guide pipe 431 extracts the gas inside the outer box 432, and a plurality of receiving grooves 23 are provided on the outer side of the extension block 22, and the plurality of receiving grooves 23 are each provided with an expansion member 25, such as Figure 4 As shown, at this time, the internal gas of the expansion piece 25 fixedly connected to the extension block 22 through the fixing frame 24 is extracted, and the expansion piece 25 contracts and leaves the extension block 22, so that the inside of the turning key shaft 21 is exposed. At this time, the staff can insert the handwheel hexagonal shaft through the extension block 22 and then insert it into the turning key shaft 21. The arrangement of the pressure control component, the outer box 432, the extension block 22 and the plurality of expansion pieces 25 ensures that only the movement block 47 moves up to block and limit the clockwise rotation of the turning key shaft 21. After the turning key shaft 21 has anti-slip protection, it is prevented that the brake 3 is released due to the unskilled operation of the staff. After the brake limit of the winch device 1 is opened, sufficient force cannot be applied to the winch key shaft 21, resulting in the winch key shaft 21 being able to rotate clockwise to cause the elevator bridge box to slide down, thereby reducing accidents; then another staff member operates the brake handle release 31 on the brake 3 to release the brake limit of the winch device 1, and the staff member can rotate the winch key shaft 21 counterclockwise by the handwheel, so that the elevator cable winch structure composed of the winch device 1, the winch key shaft 21, the brake 3, the brake handle release 31 and other structures pulls up the elevator bridge box to rescue personnel or maintain the elevator.

[0036] When the suggestion displayed on the controller 5 is "down, clockwise operation", when choosing to rotate the turning key shaft 21 clockwise to move the elevator bridge box downward, the staff chooses to press the downward button 53, and the controller 5 controls the electrically connected electromagnet 410 and pressure sensor 2 411 to work. At the same time, the red signal light 51 is on. At this time, the staff pulls the fixed frame 413, so that the fixed frame 413 drives the fixedly connected fixed frame 3 49 to move. When the electromagnet 410 and the pressure sensor 2 411 move and contact the inner wall of the installation box 48, the working electromagnet 410 is adsorbed and fixed to the installation box 48 by magnetic force, and the pressure sensor 2 411 contacts the installation box 48. The pressure sensor 2 411 detects pressure. At this time, the controller 5 electrically connected to the pressure sensor 2 411 obtains feedback from the pressure sensor 2 411, and the controller 5 controls the electrically connected pneumatic cylinder 434 to contract, so that the expansion member 25 contracts and extends. The interior of the block 22 is connected to the interior of the turning gear key shaft 21; the staff can insert the handwheel hexagonal shaft through the extension block 22 into the interior of the turning gear key shaft 21 to operate, and the signal light 51 for the red light goes out, and the signal light 51 for the green light lights up, indicating that the operation can be performed; at the same time, the battery structure inside the controller 5 supplies power to the electrically connected speed sensor 6, and controls the speed sensor 6 to enter the working state. At this time, the speed sensor 6 (a laser speed sensor can be used) detects and collects the rotation speed of the turning gear key shaft 21, and the rotation speed data collected by the speed sensor 6 is fed back to the electrically connected controller 5. When the controller 5 determines that the received speed data exceeds the preset speed one, the controller 5 speaker plays a deceleration reminder to remind the staff to reduce the speed of the turning gear key shaft 21 to avoid the turning gear key shaft 21 rotating too fast, resulting in the elevator bridge box descending too fast. The inertia generated is large, resulting in the staff being unable to control the speed;When the controller 5 determines that the received speed data exceeds the preset speed 2, the controller 5 speaker plays an alarm, and at the same time, the controller 5 controls the electrically connected pneumatic cylinder 434 and three-way valve 429 to work. At this time, the normally closed end of the three-way valve 429 is opened, and the normally closed end of the three-way valve 429 is fixedly connected to the air guide pipe 1 427, and the air guide pipe 1 427 is connected to the air inlet end of the two pneumatic telescopic rods 426, so the pneumatic cylinder 434 pushes the piston 433 to move upward, and the two pneumatic telescopic rods 426 are inflated through the three-way valve 429 and the air guide pipe 1 427. The pneumatic telescopic rods 426 work and extend for a period of time and then pause. The magnet plate 423 fixedly connected between the top and bottom moves up a distance. During this process, the magnet plate 423 moves up to push the installation box 48. The installation box 48 moves up, and the upward moving block 47 blocks and limits the tooth plate 44. Under the upward movement of the moving block 47, the tooth plate 44 resumes the vertical state, and the tooth plate 44 engages with the turning key shaft 21 to brake the turning key shaft 21. When the turning key shaft 21 rotates too fast, the turning key shaft 21 is automatically braked to avoid the situation where the turning key shaft 21 loses control and causes the elevator bridge box to fall out of control, ensuring the stability of the elevator bridge box moving down through the elevator cable turning structure, reducing safety hazards. ;

[0037] The time when the pneumatic cylinder 434 stops working is provided for the staff to adjust the status, and the controller 5 plays an indication reminder on the speaker. After a period of time, the pneumatic cylinder 434 contracts, driving the piston 433 to reset, and the gas inside the pneumatic telescopic rod 426 is extracted. The pneumatic telescopic rod 426 contracts and drives the magnet plate 423 to move down. The magnet plate 423 is adsorbed and fixed together with the installation box 48 by magnetic force. The installation box 48 and the moving block 47 fixedly connected to the top of the installation box 48 move down and reset, and the limit of the turning key shaft 21 is removed, and the staff can continue to work; when the controller 5 again determines that the received speed data exceeds the preset speed 2, the controller 5 controls the electrically connected pneumatic cylinder 434 to work and push the piston 433 to move up, and the pneumatic telescopic rod 426 is compressed. The air inside the retracted rod 426 pushes the installation box 48 to move upward, and the moving block 47 moves upward to brake the turning key shaft 21 again. Then the controller 5 controls the electrically connected electromagnet 410 to stop working, and the spring 412 of the fixed frame 3 49 loses the limit rebound and drives the fixed frame 3 49 to reset, so that the fixed frame 3 49 drives the fixed frame 413 and the fixed frame 5 414 to move, and the two fixed frames 5 414 drive the two limit plug rods 415 to move. Under the action of the two limit plug rods 415, the moving block 47 and the square tube 417 move downward and are limited. The moving block 47 limits the clockwise rotation of the turning key shaft 21 to prevent the turning key shaft 21 from rotating clockwise and causing the elevator bridge box to slide down, thereby reducing the occurrence of safety accidents.

[0038] Finally, the pneumatic cylinder 434 drives the piston 433 to move downward, and the gas inside the pneumatic telescopic rod 426 is extracted. At this time, the force of the pneumatic telescopic rod 426 to drive the magnet plate 423 to move downward is greater than the suction force between the magnet plate 423 and the installation box 48, so that the pneumatic telescopic rod 426 contracts and drives the magnet plate 423 to reset. Then the controller 5 controls the electrically connected three-way valve 429 to stop working. The controller 5 notifies the relevant person in charge of repeated errors to reduce the possibility of human-caused accidents in elevator rescue.

[0039] When the winch device 1 is used, the staff holds the fixing frame four 413 and pulls it, and then pulls down the fixing frame four 413 to move the installation box 48 downward. Since the length of the limiting plate 46 fixedly connected to the top of the moving block 47 is greater than the length of the through slot 45, the limiting plate 46 can resist the top of the fixing plate 41 after moving downward. When the limiting plate 46 resists the fixing plate 41, the fixing frame four 413 is released, and the rebounding spring 412 drives the fixing frame three 49 to reset.

[0040] In addition, such as Figure 5 As shown, a fixing frame 2 42 is installed inside the tooth plate 44 and the torsion spring 43. The fixing frame 2 42 is fixedly connected to the fixing plate 1 41. The torsion spring 43 and the tooth plate 44 are rotatably installed on the top of the fixing plate 1 41 to meet the needs of clockwise and counterclockwise rotation of the tooth plate 44 and the needs of expansion, contraction and rebound of the torsion spring 43. Under the action of the two torsion springs 43, the tooth plate 44 remains in a vertical state.

[0041] In addition, such as Figure 3 As shown, a second fixing plate 425 is fixedly connected between the two pneumatic telescopic rods 426, and one end of the second fixing plate 425 is fixedly connected to the turning device 1, so that the pneumatic telescopic rods 426 and the turning device 1 are fixedly installed together. A third fixing plate 435 is fixedly connected between the pneumatic cylinder 434 and the turning device 1, so that the pneumatic cylinder 434 and the turning device 1 are fixedly installed together.

[0042] A slip detection system 54 is provided inside the controller 5 for controlling the operation of the anti-skid device composed of the key shaft structure 2 and the anti-skid structure 4. The electrical signal path module 5403 is used for signal transmission and power transmission of structures such as the signal light 51, the slip detection system 54, the pneumatic cylinder 434, the three-way valve 429, the pressure sensor 2 411, the pressure sensor 1 419, and the speed sensor 6. The command reading module 5401 in the slip detection system 54 reads whether the up button 52 or the down button 53 is pressed. The pressure identification module 5404 reads whether the pressure sensor 1 419 and the pressure sensor 2 411 detect pressure values ​​according to the feedback from the electrical signal path module 5403. The control module 5402 generates an electrical signal according to the reading result of the command reading module 5401, the judgment result of the pressure identification module 5404 and the control program stored in advance. The electrical signal path module 5403 transmits the electrical signal to the corresponding position to enable the anti-skid structure 4 to perform corresponding work.

[0043] At the same time, the controller 5 is electrically connected to the elevator control system, and the work recording module 5405 records the up and down movement values ​​of the elevator bridge box in real time. The alignment position of the elevator bridge box and the elevator door on the Nth floor is 0, which is the starting position. The alignment position of the elevator bridge box and the elevator door on the N+1th floor or the elevator door on the N-1th floor is 100. The work recording module 5405 records the value of the elevator bridge box from the elevator door on the Nth floor to the elevator door on the N+1th floor or the elevator door on the N-1th floor. When the elevator bridge box is aligned with the elevator door on the N+1th floor or the elevator door on the N-1th floor, the recorded value of the work recording module 5405 returns to 0, and the elevator bridge box starts again at the position of 0. Re-record, the operation simulation module 5406 simulates the distance between the elevator bridge box and the upper and lower elevator doors according to the numerical values ​​recorded in the work record module 5405. When the distance ratio between the elevator bridge box moving up to the upper elevator door and moving down to the lower elevator door is less than 1:2, the operation simulation module 5406 generates a suggestion of "downward, clockwise operation" and displays it on the display screen of the controller 5. When the distance ratio is greater than 1:2, the operation simulation module 5406 generates a suggestion of "upward, counterclockwise operation" and displays it on the display screen of the controller 5. This can reasonably suggest operating methods to the staff and reduce the physical input of the staff.

[0044] The auxiliary voice package 5407 stores voice files such as alarms, instructions, and suggestions. The alarm, instruction, and suggestion voice files are played through the controller 5 speakers to provide guidance and reminders for the staff's operations.

[0045] A camera 5410 is mounted on the controller 5 to capture the appearance of the staff member, and a face recognition module 5408 identifies the appearance of the staff member to determine whether the staff member is a staff member. If the staff member is a staff member, the controller 5 normally controls the anti-skid structure 4 to work. If the judgment result is that the staff member is not a staff member, the internal alarm voice of the auxiliary voice package 5407 is fed back to the management personnel through the 4G communication module 5409. At the same time, the alarm voice is played through the speaker on the controller 5 to persuade the personnel entering the vicinity of the turning device 1 and the brake 3 to leave.

Claims

1. An anti-skid device for an elevator cable winch, comprising a winch device (1), a brake (3) and a controller (5), characterized in that: A key shaft structure (2) is provided on one side of the turning gear device (1), the key shaft structure (2) comprising a plurality of tooth grooves (20), a turning gear key shaft (21) and an extension block (22), a plurality of receiving grooves (23) are provided on the outside of the extension block (22), expansion members (25) are provided inside the plurality of receiving grooves (23), and a rotation speed sensor (6) is provided on one side of the turning gear key shaft (21); An anti-skid structure (4) is provided at the bottom of the turning key shaft (21), the anti-skid structure (4) comprising a fixing plate (41) and an installation box (48), a plurality of tooth plates (44) are provided at the top of the fixing plate (41), the plurality of tooth plates (44) are meshed with the turning key shaft (21) through tooth grooves (20), torsion springs (43) are fixedly connected to both sides of the tooth plates (44), a through groove (45) and a moving block (47) are provided at the bottom of one side of the plurality of tooth plates (44), the moving block (47) is fixedly connected to the installation box (48), and a spring (412), a pressure sensor (411), two electromagnets (410) and a fixing A frame three (49), one side of the fixed frame three (49) is fixedly connected to a fixed frame four (413), the fixed frame four (413) is connected to two limit rods (415), one of the limit rods (415) is sleeved with a plurality of moving blocks two (416) on the outside, one of the moving blocks two (416) is provided with a pressure sensor one (419) on the top, two pneumatic telescopic rods (426) are provided at the bottom of the installation box (48), an air guide tube one (427) is fixedly connected between the two pneumatic telescopic rods (426), an outer box (432) is rotatably sleeved on the outside of the extension block (22), and a pressure control component is provided between the outer box (432) and the air guide tube one (427).

2. The anti-skid device for an elevator cable drum according to claim 1, characterized in that: The controller (5) comprises two signal lights (51), an upward button (52) and a downward button (53); the brake (3) comprises a brake handle release (31); a fixing frame (24) is fixedly connected between the expansion member (25) and the extension block (22); the tooth groove (20) is formed on the outside of the turning key shaft (21); and the extension block (22) is fixedly connected to one end of the turning key shaft (21).

3. The anti-skid device for an elevator cable drum according to claim 1, characterized in that: A second fixing frame (42) is installed inside the plurality of tooth plates (44) and the plurality of torsion springs (43); the second fixing frame (42) is fixedly connected to the first fixing plate (41); the through slots (45) are opened at the top of the first fixing plate (41); the tops of the plurality of movement blocks (47) respectively penetrate the plurality of through slots (45) and extend to the top of the first fixing plate (41); the tops of the movement blocks (47) are fixedly connected to the limiting plate (46).

4. The anti-skid device for an elevator cable drum according to claim 1, characterized in that: A plurality of square tubes (417) are fixedly connected to the bottom of the fixing plate 1 (41), and a round hole (418) is provided on one side of the plurality of square tubes (417). A square groove (420) is provided at the bottom of the fixing plate 1 (41), and the top end of the pressure sensor 1 (419) is arranged inside the square groove (420) and is fixedly connected to the fixing plate 1 (41).

5. The anti-skid device for an elevator cable drum according to claim 1, characterized in that: Another of the limit rods (415) passes through a portion of the moving block one (47), and a fixing frame five (414) is fixedly connected between the two limit rods (415) and the fixing frame four (413), and a portion of the fixing frame four (413) passes through one side of the installation box (48) and is arranged outside the installation box (48).

6. The anti-skid device for an elevator cable drum according to claim 1, characterized in that: The spring (412) is fixedly connected between the installation box (48) and the third fixing frame (49), and a plurality of springs (412) are provided. The electromagnet (410) and the second pressure sensor (411) are both fixedly connected to the third fixing frame (49), and two electromagnets (410) are provided.

7. The anti-skid device for an elevator cable drum according to claim 1, characterized in that: A second fixing plate (425) is fixedly connected between the two pneumatic telescopic rods (426), one end of the second fixing plate (425) is fixedly connected to the turning device (1), and a magnet plate (423) is fixedly connected between the top ends of the two pneumatic telescopic rods (426).

8. The anti-skid device for an elevator cable drum according to claim 1, characterized in that: The pressure control component includes a piston cylinder (428), wherein the piston cylinder (428) is fixedly connected to the turning device (1), wherein a piston (433) is slidably connected inside the piston cylinder (428), wherein the bottom end of the piston (433) passes through the piston cylinder (428) and extends to the bottom outside the piston cylinder (428), wherein the bottom end of the piston (433) is fixedly connected to a pneumatic cylinder (434), and a fixing plate three (435) is fixedly connected between the pneumatic cylinder (434) and the turning device (1).

9. The anti-skid device for an elevator cable drum according to claim 1, characterized in that: The pressure control assembly comprises a second air guide tube (431), wherein the second air guide tube (431) is fixedly connected to one side of the outer box (432), a three-way valve (429) is fixedly connected between one end of the second air guide tube (431) and the piston cylinder (428), and a normally closed end of the three-way valve (429) is fixedly connected to the first air guide tube (427).

10. A slip detection system for an elevator cable drum, suitable for an anti-slip device for an elevator cable drum as claimed in any one of claims 1 to 9, wherein a slip detection system (54) is arranged inside a controller (5), characterized in that: The slip detection system (54) includes a command reading module (5401), a control module (5402), an electrical signal path module (5403), a pressure recognition module (5404), a work recording module (5405), an operation simulation module (5406), an auxiliary voice package (5407), a face recognition module (5408), a 4G communication module (5409) and a camera (5410).

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