CN114920115B - Straight ladder device with magnetic attraction type manned automatic descending function and control method - Google Patents
Straight ladder device with magnetic attraction type manned automatic descending function and control method Download PDFInfo
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- CN114920115B CN114920115B CN202210504175.0A CN202210504175A CN114920115B CN 114920115 B CN114920115 B CN 114920115B CN 202210504175 A CN202210504175 A CN 202210504175A CN 114920115 B CN114920115 B CN 114920115B
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- 238000001179 sorption measurement Methods 0.000 claims description 28
- 230000005484 gravity Effects 0.000 claims description 25
- 230000001133 acceleration Effects 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 8
- 238000004804 winding Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 239000000725 suspension Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Abstract
The invention provides a straight ladder device with a magnetic attraction type manned automatic descending function and a control method, comprising a straight ladder and a manned assembly capable of sliding along the axial direction of the straight ladder, wherein the manned assembly comprises a magnetic gauge stand, a main motor and a main control box, wherein the magnetic gauge stand is attracted to the straight ladder through the magnetic attraction, the main motor drives a strip-shaped permanent magnet in the magnetic gauge stand to rotate, the main control box is arranged on the straight ladder and is used for supplying power to and controlling the main motor, a manned pedal and a rope are respectively arranged at the top and the bottom of the magnetic gauge stand, and the movable end of the rope is connected with a balancing weight. The invention solves the problem of more potential safety hazards when operators adopt the straight ladder to get off the ladder in the prior art, and has the effects of reducing the potential safety hazards when operators get off the ladder and reducing the labor intensity of getting off the ladder.
Description
Technical Field
The invention relates to the technical field of construction and construction straight ladders, in particular to a straight ladder device with a magnetic attraction type manned automatic descending function and a control method.
Background
The straight ladder is an important operation tool widely applied in construction, and an operator tends to easily go up and down the ladder in the process of going up and down, and is difficult to lower the ladder, because the eyes are not easy to find the stepping position of the ladder due to the reasons of sight when the operator goes down the ladder, the operator is caused to easily step on the foot and fall, and accordingly safety accidents are caused. At present, a special elevator is often installed under the working condition that the working height is large and the working position is fixed, but a simple traditional straight ladder is still generally adopted as a climbing tool under the condition that the working height is within 10 meters and the working position is changed frequently.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a straight ladder device with a magnetic adsorption type manned automatic descending function and a control method, which solve the problem of more potential safety hazards when operators adopt the straight ladder to descend in the prior art.
According to the embodiment of the invention, the vertical ladder device with the magnetic attraction type manned automatic descending function comprises a vertical ladder and a manned component capable of sliding along the axial direction of the vertical ladder, wherein the manned component comprises a magnetic gauge stand, a main motor and a main control box, the magnetic gauge stand is attracted to the vertical ladder through the magnetic attraction, the main motor drives a strip-shaped permanent magnet in the magnetic gauge stand to rotate, the main control box is arranged on the vertical ladder and is used for supplying power and controlling the main motor, a manned pedal and a rope are respectively arranged at the top and the bottom of the magnetic gauge stand, and the movable end of the rope is connected with a balancing weight.
Preferably, the magnetic gauge stand is provided with a control box, the control box is connected in series on a cable between the main control box and the main motor, and a start-stop switch for controlling the movement of the manned assembly and an acceleration sensor for controlling the rotation of the main motor are arranged in the control box.
Preferably, the magnetic gauge stand is provided with a bracket, an auxiliary motor is arranged on the magnetic gauge stand through the bracket, the cable between the main control box and the main motor is wound on a winding pipe driven by the auxiliary motor, and the cable is routed from the inside of the winding pipe and connected with the control box and the main motor in series.
Preferably, a pressure sensor is arranged at the top of the control box, a stop plate used for being in contact with the pressure sensor is arranged at the top of the straight ladder, and the pressure sensor is electrically connected with the main control box.
Preferably, the vertical ladder is internally and uniformly provided with a transverse plate and a vertical rod, the transverse plate is intersected with the vertical rod, the magnetic gauge stand is provided with an emergency stop component, and the emergency stop component comprises a brake caliper which can be clamped on the vertical rod in the vertical ladder.
Preferably, the emergency stop assembly further comprises a holding rod connected to the magnetic gauge stand and a connecting cylinder arranged in the middle of the holding rod, the brake caliper is installed in the connecting cylinder, and brake handles for controlling the movable ends of the brake caliper to be folded or unfolded are arranged at two ends of the connecting cylinder.
Preferably, the straight ladder is provided with a slideway for the manned assembly to slide, and the side wall of the magnetic gauge stand is provided with a slot for the slideway to insert.
Preferably, the fixed pulley used for supporting the rope is arranged at the top of the straight ladder, a limit frame is arranged on the side face of the straight ladder, and the balancing weight is arranged in the limit frame in a sliding mode.
A control method of a straight ladder device with a magnetic adsorption type manned automatic descending function comprises the following steps: step one: the manned assembly is positioned at the top end of the straight ladder, the strip-shaped permanent magnet in the magnetic gauge stand is parallel to the straight ladder, the magnetic adsorption force between the magnetic gauge stand and the straight ladder is maximum, and under the condition of matching with the balancing weight, an operator stands on the manned assembly, and the manned assembly is kept stable; step two: when an operator needs to descend, the main motor rotates by pressing the start-stop switch, the main motor drives the strip-shaped permanent magnet in the magnetic gauge stand to rotate, so that the strip-shaped permanent magnet rotates relative to the vertical ladder, the magnetic adsorption force between the magnetic gauge stand and the vertical ladder is reduced, the friction force is correspondingly reduced, and after the gravity of the operator and the manned component is greater than the gravity of the balancing weight and the friction force between the magnetic gauge stand and the slideway, the operator standing on the manned pedal slides downwards along with the manned component; step three: when the acceleration of the manned component is overlarge due to the fact that the magnetic adsorption force between the magnetic gauge stand and the vertical ladder is too small in the descending process, the acceleration sensor transmits signals to the main control box, the main control box controls the main motor to rotate reversely, the magnetic adsorption force between the magnetic gauge stand and the vertical ladder is increased, the acceleration of the manned component is further reduced, and finally the purpose that the gravity of an operator and the manned component is equal to the gravity of the balancing weight and the friction force between the magnetic gauge stand and the slideway is achieved, so that the manned component descends at a uniform speed is achieved; step four: when the manned component is about to slide to the bottom of the vertical ladder, an operator presses the start-stop switch to enable the main control box to control the main motor to rotate and drive the strip-shaped permanent magnets in the magnetic gauge stand to rotate to a state parallel to the vertical ladder, the magnetic adsorption force between the magnetic gauge stand and the vertical ladder is continuously increased in the process, and after the gravity of the operator and the manned component is smaller than the gravity of the balancing weight and the friction force between the magnetic gauge stand and the slideway, the sliding manned component starts to decelerate, and finally the manned component is stopped.
Compared with the prior art, the invention has the following beneficial effects:
1. the magnetic adsorption force between the magnetic gauge stand and the vertical ladder is regulated and controlled by utilizing the principle of the magnetic gauge stand, so that the friction force between the manned assembly and the vertical ladder is regulated, the manned assembly is lowered, the lowering speed of the manned assembly is regulated, and the potential safety hazard and labor intensity of operators for lowering the ladder are reduced;
2. the automatic reset of manned assembly can be realized through the balancing weight, and simultaneously the balancing weight can offset the gravity of a part of operating personnel and manned assembly, so that the requirement on the magnetic adsorption force between the magnetic gauge stand and the vertical ladder is reduced, the friction between the manned assembly and the vertical ladder is reduced, the service life of the device is prolonged, and the manufacturing cost of the device is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of another direction of the embodiment of the present invention.
Fig. 3 is a schematic structural diagram of another direction according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a vertical ladder according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a manned assembly according to an embodiment of the present invention.
FIG. 6 is a schematic diagram of an emergency stop assembly according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a magnetic gauge stand according to an embodiment of the invention.
In the above figures: 1. a straight ladder; 2. a slideway; 3. a limit frame; 4. a stop plate; 5. a master control box; 6. connecting sleeves; 7. a magnetic gauge stand; 8. a control box; 9. a start-stop switch; 10. a pressure sensor; 11. a main motor; 12. a bracket; 13. an auxiliary motor; 14. a cable; 15. a grip; 16. a connecting cylinder; 17. a brake lever; 18. a brake caliper; 19. a manned pedal; 20. a fixed pulley; 21. a mounting bracket; 22. a rope; 23. and (5) balancing weights.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1-7, in order to reduce the potential safety hazard of the operator for getting off the ladder and the labor intensity of the operator for getting off the ladder. The invention provides a vertical ladder device with a magnetic attraction type manned automatic descending function, which comprises a vertical ladder 1 and a manned component capable of sliding along the axial direction of the vertical ladder 1, wherein the manned component comprises a magnetic gauge stand 7 attracted to the vertical ladder 1 through the magnetic attraction, a main motor 11 for driving a strip-shaped permanent magnet in the magnetic gauge stand 7 to rotate, and a main control box 5 arranged on the vertical ladder 1 and used for supplying power to and controlling the main motor 11, the top and the bottom of the magnetic gauge stand 7 are respectively provided with a manned pedal 19 and a rope 22, and the movable end of the rope 22 is connected with a balancing weight 23.
The structure of the vertical ladder 1 is similar to that of the existing vertical ladder, an installation table for installing a main control box 5 is arranged at the top of the vertical ladder 1, the main control box 5 is connected with an external power supply or is provided with a direct current power supply, magnetic gauge stand 7 are arranged on two upright posts of the vertical ladder 1, and a manned pedal 19 is arranged between the two magnetic gauge stand 7; the structure of the magnetic gauge stand 7 is the same as that of the existing magnetic gauge stand 7, the two ends of the shell are provided with magnetizers, the middle part of the shell is provided with a copper plate, the inside of the shell is rotationally provided with a strip-shaped permanent magnet, and when the strip-shaped permanent magnet is parallel to the vertical ladder 1, the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 is maximum at the moment, so that the manned assembly can be stably attached to the vertical ladder 1; the main motor 11 is controlled to rotate through the main control box 5, the main motor 11 drives the strip permanent magnet in the magnetic gauge stand 7 to rotate, and the strip permanent magnet rotates to an inclined state from a state parallel to the straight ladder 1 in the rotating process, so that the magnetic adsorption force between the magnetic gauge stand 7 and the straight ladder 1 is gradually reduced.
When an operator stands on the manned pedal 19, the main motor 11 is controlled to rotate through the main control box 5, the angle of the strip-shaped permanent magnet in the magnetic gauge stand 7 is adjusted, the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 is regulated, the friction force between the manned assembly and the vertical ladder 1 is further regulated, and when the sum of the friction force between the manned assembly and the vertical ladder 1 and the gravity of the balancing weight 23 is smaller than the sum of the gravity of the operator and the gravity of the manned assembly, the downward sliding of the manned assembly can be realized; and in the sliding process, the magnetic gauge stand 7 is always clung to the straight ladder 1 due to the magnetic force between the magnetic gauge stand 7 and the straight ladder 1, so that the manned component slides more stably. Similarly, when the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 is regulated, the stress balance of the manned assembly can be realized, so that the manned assembly slides at a constant speed, the sum of the friction force between the manned assembly and the vertical ladder 1 and the gravity of the balancing weight 23 is larger than the sum of the gravity of an operator and the gravity of the manned assembly, and the deceleration and the rest of the manned assembly are realized.
As shown in fig. 1, 2, 3, 5, 6 and 7, to achieve automatic regulation of the sliding speed of the people carrier assembly. The magnetic gauge stand 7 is provided with a control box 8, the control box 8 is connected in series with a cable 14 between the main control box 5 and the main motor 11, and a start-stop switch 9 for controlling the movement of the manned component and an acceleration sensor for controlling the rotation of the main motor 11 are arranged in the control box 8. In the sliding process of the manned component along the vertical ladder 1, when the acceleration sensor detects that the acceleration of the manned component is overlarge, the acceleration sensor transmits signals to the PLC in the main control box 5, the PLC controls the main motor 11 to reversely rotate, and then the strip-shaped permanent magnet in the magnetic gauge stand 7 is driven to reversely rotate, so that the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 is increased, and uniform-speed sliding or deceleration sliding of the manned component is finally realized. The functional requirements for the PLCs in the master control box 5 are low, and most existing PLCs can realize the above control actions after programming.
As shown in fig. 5-7, during the sliding of the people carrier assembly, the cable 14 between the main control box 5 and the main motor 11 is prevented from being damaged. The magnetic gauge stand 7 is provided with a support 12, an auxiliary motor 13 is arranged on the support 12, a cable 14 between the main control box 5 and the main motor 11 is wound on a winding pipe driven by the auxiliary motor 13, and the cable 14 is routed from the inside of the winding pipe and connected with the control box 8 and the main motor 11 in series. The winding tube is driven by the auxiliary motor 13 to wind the cable 14, and the winding tube rotates along with the movement of the manned assembly in the process of sliding the manned assembly downwards to automatically pay off; in the process that the manned assembly slides upwards, the auxiliary motor 13 is electrified to drive the wire collecting pipe to rotate and wind the cable 14; even if the manned assembly slides to the bottom end of the vertical ladder 1, the cable 14 is still wound on the winding tube of the auxiliary motor 13. The connecting sleeves 6 are arranged at the two ends of the main control box 5, the cables 14 are arranged in the connecting sleeves 6, the end parts of the connecting sleeves 6 and the axis of the wire collecting pipe are on the same vertical plane, and bending of the cables 14 can be reduced.
As shown in fig. 6-7, to achieve accurate repositioning of the people carrier assembly. The top of control box 8 is provided with pressure sensor 10, the top is provided with the stop plate 4 that is used for with pressure sensor 10 contact in the vertical ladder 1, pressure sensor 10 with master control box 5 electric connection. After the pressure sensor 10 is contacted with the stop plate 4, the pressure sensor 10 transmits a signal to the main control box 5, and the main control box 5 controls the main motor 11 to enable the strip-shaped permanent magnet in the magnetic gauge stand 7 to rapidly rotate to a vertical state, so that the manned component is fixed. When the manned assembly is driven to move upwards by the balancing weight 23, the acceleration sensor can monitor the manned assembly, and when the acceleration of the manned assembly is overlarge, the uniform speed or the deceleration sliding of the manned assembly is realized by adjusting the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1.
As shown in fig. 1, 2, 3, 5 and 6, in order to improve the safety of the vertical ladder device. The vertical ladder is characterized in that a transverse plate and a vertical rod are uniformly arranged in the vertical ladder 1, the transverse plate is intersected with the vertical rod, a sudden stop component is arranged on the magnetic gauge stand 7, and the sudden stop component comprises a brake caliper 18 which can be clamped on the vertical rod in the vertical ladder 1. In the process that an operator slides downwards through the manned component, if the vertical ladder device is abnormal, the vertical rod is clamped through the brake caliper 18, and the manned component is suspended when the brake caliper 18 is in contact with the transverse plate.
As shown in fig. 1, 2, 3, 5 and 6, to effect operator manipulation of the brake caliper 18. The emergency stop assembly further comprises a holding rod 15 connected to the magnetic gauge stand 7 and a connecting cylinder 16 arranged in the middle of the holding rod 15, the brake caliper 18 is installed in the connecting cylinder 16, and brake handles 17 used for controlling the movable ends of the brake caliper 18 to be folded or unfolded are arranged at two ends of the connecting cylinder 16. When an operator takes the manned component, the operator can hold the holding rod 15 by hand, and the brake handle 17 is kneaded, so that the brake handle 17 rotates to drive the brake caliper 18 to be gathered together, and then the brake caliper is clamped on the vertical rod, thereby realizing the suspension of the manned component; the brake handle 17 and the brake caliper 18 adopt the form of the hand brake and the brake pad of the existing bicycle, and the brake caliper 18 is gathered by pulling the connecting wire through the brake handle 17.
As shown in fig. 1-4, in order to achieve a tighter fit between the people carrier and the vertical ladder 1, lateral swaying of the people carrier is avoided. The vertical ladder 1 is provided with a slideway 2 for the manned assembly to slide, and the side wall of the magnetic gauge stand 7 is provided with a slot for the slideway 2 to insert. The lateral limit of the manned component is realized through the matching of the slide way 2 and the slot on the magnetic gauge stand 7.
As shown in fig. 1-2, to improve the sliding stability of the weight 23. The top of the straight ladder 1 is provided with a fixed pulley 20 for supporting a rope 22, the side face of the straight ladder 1 is provided with a limiting frame 3, and the balancing weight 23 is arranged in the limiting frame 3 in a sliding mode. The counterweight 23 is guided by the limiting frame 3, the rope 22 is guided by the fixed pulley 20, and the fixed pulley 20 is rotatably installed on the side wall of the top end of the vertical ladder 1 by the installation bracket 21.
A control method of a straight ladder device with a magnetic adsorption type manned automatic descending function comprises the following steps: step one: the manned component is positioned at the top end of the vertical ladder 1, the strip-shaped permanent magnet in the magnetic gauge stand 7 is parallel to the vertical ladder 1, the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 is maximum, and under the condition of matching with the balancing weight 23, an operator stands on the manned component, and the manned component is kept stable; step two: when an operator needs to descend, the main motor 11 rotates by pressing the start-stop switch 9, the main motor 11 drives the strip-shaped permanent magnet in the magnetic gauge stand 7 to rotate, so that the strip-shaped permanent magnet rotates relative to the vertical ladder 1, the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 is reduced, the friction force is correspondingly reduced, and after the gravity of the operator and the manned component is greater than the gravity of the balancing weight 23 and the friction force between the magnetic gauge stand 7 and the slideway 2, the operator standing on the manned pedal 19 slides downwards along with the manned component in an accelerating way; step three: when the acceleration of the manned component is overlarge due to the overlarge magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 in the descending process, the acceleration sensor transmits a signal to the main control box 5, the main control box 5 controls the main motor 11 to rotate reversely, the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 is increased, the acceleration of the manned component is further reduced, and finally the gravity of an operator and the manned component is equal to the gravity of the balancing weight 23 and the friction between the magnetic gauge stand 7 and the slideway 2, so that the manned component descends at a uniform speed; step four: when the manned component is about to slide to the bottom end of the vertical ladder 1, an operator presses the start-stop switch 9 to enable the main control box 5 to control the main motor 11 to rotate and drive the strip-shaped permanent magnets in the magnetic gauge stand 7 to rotate to be parallel to the vertical ladder 1, in the process, the magnetic adsorption force between the magnetic gauge stand 7 and the vertical ladder 1 is continuously increased, and after the gravity of the operator and the manned component is smaller than the gravity of the balancing weight 23 and the friction between the magnetic gauge stand 7 and the slideway 2, the sliding manned component starts to decelerate, and finally the manned component is stopped.
Claims (8)
1. A vertical ladder device with magnetic adsorption force type manned automatic descending function is characterized in that: the elevator comprises a vertical ladder (1) and a manned component capable of sliding along the axial direction of the vertical ladder (1), wherein the manned component comprises a magnetic gauge stand (7) adsorbed on the vertical ladder (1) through magnetic adsorption force, a main motor (11) for driving strip-shaped permanent magnets inside the magnetic gauge stand (7) to rotate, and a main control box (5) arranged on the vertical ladder (1) and used for supplying power to and controlling the main motor (11), a manned pedal (19) is arranged at the top of the magnetic gauge stand (7), a rope (22) is arranged at the bottom of the magnetic gauge stand (7), and a balancing weight (23) is connected to the movable end of the rope (22); the use of the straight ladder device comprises the following steps: step one: the manned component is positioned at the top end of the vertical ladder (1), the strip-shaped permanent magnet in the magnetic gauge stand (7) is parallel to the vertical ladder (1), the magnetic adsorption force between the magnetic gauge stand (7) and the vertical ladder (1) is maximum, and under the condition of matching with the balancing weight (23), an operator stands on the manned component, and the manned component is stable; step two: when an operator needs to descend, the main motor (11) is rotated by pressing the start-stop switch (9), the main motor (11) drives the strip-shaped permanent magnet in the magnetic gauge stand (7) to rotate, so that the strip-shaped permanent magnet rotates relative to the vertical ladder (1), the magnetic adsorption force between the magnetic gauge stand (7) and the vertical ladder (1) is reduced, the friction force is correspondingly reduced, and after the gravity of the operator and the manned component is greater than the gravity of the balancing weight (23) and the friction force between the magnetic gauge stand (7) and the slideway (2), the operator standing on the manned pedal (19) slides downwards along with the manned component; step three: when the acceleration of the manned component is overlarge due to the fact that the magnetic adsorption force between the magnetic gauge stand (7) and the vertical ladder (1) is too small in the descending process, the acceleration sensor transmits signals to the main control box (5), the main control box (5) controls the main motor (11) to rotate reversely, the magnetic adsorption force between the magnetic gauge stand (7) and the vertical ladder (1) is increased, the acceleration of the manned component is further reduced, and finally the fact that the gravity of an operator and the manned component is equal to the gravity of the balancing weight (23) and the friction force between the magnetic gauge stand (7) and the slideway (2) is achieved, and the uniform descending of the manned component is achieved; step four: when the manned component is about to slide to the bottom end of the vertical ladder (1), an operator presses the start-stop switch (9), so that the main control box (5) controls the main motor (11) to rotate and drives the strip permanent magnet in the magnetic gauge stand (7) to rotate to be parallel to the vertical ladder (1), the magnetic adsorption force between the magnetic gauge stand (7) and the vertical ladder (1) is continuously increased in the process, and after the gravity of the operator and the manned component is smaller than the gravity of the balancing weight (23) and the friction force between the magnetic gauge stand (7) and the slideway (2), the sliding manned component starts to decelerate, and finally the manned component is stopped.
2. A vertical ladder apparatus having a magnetic attraction type man-carrying automatic descent function as claimed in claim 1, wherein: the magnetic meter seat (7) is provided with a control box (8), the control box (8) is connected in series on a cable (14) between the main control box (5) and the main motor (11), and a start-stop switch (9) for controlling the movement of the manned component and an acceleration sensor for controlling the rotation of the main motor (11) are arranged in the control box (8).
3. A vertical ladder apparatus having a magnetic attraction type man-carrying automatic descent function as claimed in claim 2, wherein: be provided with support (12) on magnetic gauge stand (7) to install auxiliary motor (13) through support (12), main control box (5) and main motor (11) between cable (14) twine on the receipts spool through auxiliary motor (13) driven, just cable (14) follow receipts spool inside wiring, and establish ties control box (8) and main motor (11).
4. A vertical ladder apparatus having a magnetic attraction type man-carrying automatic descent function as claimed in claim 3, wherein: the top of control box (8) is provided with pressure sensor (10), the top is provided with in vertical ladder (1) and is used for stopping board (4) with pressure sensor (10) contact, pressure sensor (10) with master control box (5) electric connection.
5. A vertical ladder apparatus having a magnetic attraction type man-carrying automatic descent function as claimed in claim 1, wherein: the vertical ladder is characterized in that a transverse plate and a vertical rod are uniformly arranged in the vertical ladder (1), the transverse plate is intersected with the vertical rod, a sudden stop component is arranged on the magnetic gauge stand (7), and the sudden stop component comprises a brake caliper (18) which can be clamped on the vertical rod in the vertical ladder (1).
6. The vertical ladder device with magnetic attraction type manned automatic descending function according to claim 5, wherein: the emergency stop assembly further comprises a holding rod (15) connected to the magnetic gauge stand (7) and a connecting cylinder (16) arranged in the middle of the holding rod (15), the brake caliper (18) is arranged in the connecting cylinder (16), and two ends of the connecting cylinder (16) are respectively provided with a brake handle (17) for controlling the movable ends of the brake caliper (18) to be folded or unfolded.
7. A vertical ladder apparatus having a magnetic attraction type man-carrying automatic descent function as claimed in claim 1, wherein: the vertical ladder (1) is provided with a slideway (2) for the manned assembly to slide, and the side wall of the magnetic gauge stand (7) is provided with a slot for the slideway (2) to insert.
8. A vertical ladder apparatus having a magnetic attraction type man-carrying automatic descent function as claimed in claim 1, wherein: the top of the straight ladder (1) is provided with a fixed pulley (20) for supporting the rope (22), the side face of the straight ladder (1) is provided with a limiting frame (3), and the balancing weight (23) is arranged in the limiting frame (3) in a sliding mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210504175.0A CN114920115B (en) | 2022-05-10 | 2022-05-10 | Straight ladder device with magnetic attraction type manned automatic descending function and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210504175.0A CN114920115B (en) | 2022-05-10 | 2022-05-10 | Straight ladder device with magnetic attraction type manned automatic descending function and control method |
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| Publication Number | Publication Date |
|---|---|
| CN114920115A CN114920115A (en) | 2022-08-19 |
| CN114920115B true CN114920115B (en) | 2023-07-14 |
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| CN202210504175.0A Active CN114920115B (en) | 2022-05-10 | 2022-05-10 | Straight ladder device with magnetic attraction type manned automatic descending function and control method |
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| CN116370857B (en) * | 2023-03-24 | 2024-01-26 | 贵州电网有限责任公司 | Safety belt suspension device for electric power overhaul |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000289997A (en) * | 1999-03-31 | 2000-10-17 | Hitachi Metals Techno Ltd | Device for magnetic attraction conveyance |
| WO2016065915A1 (en) * | 2014-10-27 | 2016-05-06 | 中际联合（北京）科技股份有限公司 | Lifting device for aerial operations |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2873722Y (en) * | 2006-01-24 | 2007-02-28 | 李士鹏 | Magnetic suspension lift |
| CN207390727U (en) * | 2017-10-11 | 2018-05-22 | 四川省特种设备检验研究院 | A kind of elevator manual emergency brake apparatus |
| CN109607390B (en) * | 2018-11-22 | 2020-06-02 | 江苏长虹智能装备股份有限公司 | Double-track suspension conveyor |
| CN211225883U (en) * | 2019-11-29 | 2020-08-11 | 中铁二十四局集团上海电务电化有限公司 | Movable cable winding and unwinding device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000289997A (en) * | 1999-03-31 | 2000-10-17 | Hitachi Metals Techno Ltd | Device for magnetic attraction conveyance |
| WO2016065915A1 (en) * | 2014-10-27 | 2016-05-06 | 中际联合（北京）科技股份有限公司 | Lifting device for aerial operations |
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