CN115818386A - Elevator shaft active anti-falling system and working method - Google Patents
Elevator shaft active anti-falling system and working method Download PDFInfo
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- CN115818386A CN115818386A CN202211490299.4A CN202211490299A CN115818386A CN 115818386 A CN115818386 A CN 115818386A CN 202211490299 A CN202211490299 A CN 202211490299A CN 115818386 A CN115818386 A CN 115818386A
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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
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- 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
Abstract
The invention relates to an elevator shaft active anti-falling system and a working method thereof, wherein the elevator shaft active anti-falling system is characterized in that: the anti-falling device comprises an elevator shaft and a protection mechanism arranged in the elevator shaft, wherein the protection mechanism comprises a pulley, an anti-falling net frame, a bracket, a steel wire rope, a limiting column, a balance weight, a gas generator, a sliding guide shoe, an anti-falling net, a T-shaped guide rail, an inflatable air bag, a bearing plate and a buffer spring; the elevator shaft active anti-falling system is reasonable in design and simple in structure, and can reduce or lighten damage caused by falling accidents outside the car and inside the shaft to the maximum extent.
Description
Technical Field
The invention relates to an active anti-falling system for an elevator hoistway and a working method thereof.
Background
The elevator is electromechanical integrated special equipment, like a traction type vertical elevator is mostly arranged in a shaft of a high-rise building and consists of electric mechanical components such as a driving system, a suspension guide system, an electric automatic control system, a safety protection system and the like, so that the elevator can not be completely avoided when the elevator is frequently started and stopped and some faults occur in the long-time intermittent running process as other electric mechanical equipment; in recent years, with the continuous development of the technological progress of the elevator, all social circles correctly know the relationship between the elevator and the fault and accident thereof, take prevention as the main and combine dredging and blocking, and make the safe work of the elevator together to ensure the safe operation of the elevator.
From the statistical analysis of people trapping or accidents caused by elevator failure in recent years, the safety factor of passengers in the elevator car is relatively high; however, there are several situations that may occur when a person falls down from the bottom of the hoistway.
(1) Elevator maintenance personnel fall, for example, fall due to being stepped on empty and sliding when the elevator is operated on the top of a car and near the edge; or the safety belt is not fastened in time or the safety belt is not firmly fastened when the operation place is transferred, so that the safety belt falls; or the related operators fall down due to the matching error, improper command, light action and the like of the operators in the maintenance process.
(2) The passengers do not use the elevator in a standard way, for example, some passengers forcibly prevent the elevator door from opening and closing by hands or bodies; a few passengers randomly knock and disorderly hit parts such as landing doors, lift cars and operating buttons, so that the door system fails and falls into the hoistway; and even more, the hoistway door falls due to the failure of the hoistway door caused by drunk door kicking.
(3) When the elevator breaks down, a trapped person forcibly takes off the door or tries to climb out of the ceiling of the car top, and the trapped person accidentally falls off the hoistway.
The casualty events occur outside the car, and the existing elevator falling prevention mechanisms and the like are not used for preventing falling of the elevator from occurring outside the car.
Disclosure of Invention
The invention aims to overcome the defects and provides an active anti-falling system of an elevator shaft and a working method, which have the advantages of reasonable design and simpler structure and can reduce or lighten the damage caused by the falling accident outside a lift car and inside the shaft to the maximum extent.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention relates to an active anti-falling system of an elevator hoistway, which is characterized in that: the protection mechanism comprises a pulley, an anti-falling net frame, a bracket, a steel wire rope, a limiting column, a balance weight, a gas generator, a sliding guide shoe, an anti-falling net, a T-shaped guide rail, an inflatable air bag, a bearing plate and a buffer spring;
the multiple supports are arranged at the bottom of the elevator shaft, and a pulley is hinged to the top ends of the supports in a rotating mode;
the limiting columns are provided with a plurality of limiting columns which are respectively arranged on the inner sides of the brackets;
the anti-falling net frame is arranged among the plurality of brackets, four corners of the anti-falling net frame are connected with first ends of steel wire ropes wound on the pulleys, and second ends of the steel wire ropes are connected with the balancing weights in the brackets; the periphery of the anti-falling net frame is also provided with a plurality of sliding guide shoes which are in sliding fit with T-shaped guide rails erected in an elevator shaft to vertically move up and down, and the anti-falling net is arranged in the middle of the anti-falling net frame;
the inflatable air bag is arranged above a bearing plate positioned at the bottom of an elevator shaft, an output pipeline of the gas generator is communicated with the inflatable air bag and used for inflating the inflatable air bag, and a plurality of buffer springs are further arranged below the bearing plate.
Furthermore, the limit column is formed by two stop blocks with different heights in parallel to form a step shape, wherein the higher stop block is positioned under the edge of the anti-falling net frame to limit the lowest falling height of the anti-falling net frame, and the lower stop block is positioned under the edge of the bearing plate to limit the lowest falling height of the bearing plate.
Furthermore, the bracket is provided with a channel for facilitating the lifting of the counterweight, and the channel does not penetrate through the wall surface facing the anti-falling net frame in the radial direction of the channel, so that the bracket is formed into square steel; or the channel penetrates the wall surface facing the fall protection net frame in the radial direction of the channel, so that the support is formed as a channel.
Furthermore, the cross-section of above-mentioned elevator well is the rectangle, and a set of two relative walls of elevator well is pressed close to the support, another set of two relative walls of elevator well is pressed close to the T type guide rail, the border at preventing weighing down the net frame is established to the boots are led in the slip, and the thickness direction extension of boots at preventing weighing down the net frame is led in the slip to the area of contact of boots and T type guide rail is led in the slip has been increased.
Furthermore, the gas generator body is filled with an ignition agent and a gas generating agent, and an outlet of the gas generator is communicated with the inflatable airbag through an output pipeline; the inflatable bladder includes more than one bladder.
Furthermore, a control mechanism is further arranged in the elevator shaft, the control mechanism comprises a human body induction sensor, an ultrasonic wave or laser speed sensor and a controller, and the human body induction sensor, the ultrasonic wave or laser distance sensor and the gas generator are electrically connected with the controller.
Furthermore, 3 anti-falling nets are arranged and are respectively a first anti-falling net, a second anti-falling net and a third anti-falling net, wherein the first anti-falling net is arranged in the middle of an anti-falling net frame capable of vertically moving up and down, and the second anti-falling net and the third anti-falling net are hung between a basic hoistway door and a support of an elevator hoistway at intervals.
Furthermore, supplementary inflatable airbags are additionally arranged between the second anti-falling net and the third anti-falling net and the inner wall of the hoistway, the supplementary inflatable airbags can be folded and curled in respective backpacks, and the backpacks are provided with ejection outlets for ejecting the supplementary inflatable airbags; the human body induction sensor is provided with a plurality of.
The invention relates to a working method of an elevator hoistway active anti-falling system, which is characterized in that: the elevator shaft active anti-falling system comprises an elevator shaft and a protection mechanism arranged in the elevator shaft, wherein the protection mechanism comprises a pulley, an anti-falling net frame, a bracket, a steel wire rope, a limiting column, a balance weight, a gas generator, a sliding guide shoe, an anti-falling net, a T-shaped guide rail, an inflatable air bag bearing plate and a buffer spring;
the multiple supports are arranged at the bottom of the elevator shaft, and a pulley is hinged to the top ends of the supports in a rotating mode;
the limiting columns are provided with a plurality of limiting columns which are respectively arranged on the inner sides of the brackets;
the anti-falling net frame is arranged among the plurality of brackets, four corners of the anti-falling net frame are connected with first ends of steel wire ropes wound on the pulleys, and second ends of the steel wire ropes are connected with the balancing weights in the brackets; the periphery of the anti-falling net frame is also provided with a plurality of sliding guide shoes which are in sliding fit with T-shaped guide rails erected in an elevator shaft to vertically move up and down, and the anti-falling net is arranged in the middle of the anti-falling net frame;
the gas generator is characterized in that an inflatable airbag is arranged above a bearing plate positioned at the bottom of an elevator shaft, an output pipeline of the gas generator is communicated with the inflatable airbag and used for inflating the inflatable airbag, and a plurality of buffer springs are arranged below the bearing plate;
the elevator hoistway is also internally provided with a control mechanism, the control mechanism comprises a human body induction sensor, an ultrasonic or laser speed sensor and a controller, and the human body induction sensor, the ultrasonic or laser distance sensor and the gas generator are electrically connected with the controller;
the during operation, when human response sensor detects that there is the human body to get into detection range, to controller signaling, ultrasonic wave or laser velocity sensor work are triggered to the controller, can realize the accurate detection to human acceleration of falling in great within range, master control circuit in the controller, it receives acceleration signal and sends ignition signal to gas generator's some firearm, and some firearm work lights the ignition agent that can explode in placing gas generator in, and the ignition agent burning makes the gas cell inflation, simultaneously, when the human body falls to preventing weighing down the net, drives and prevents weighing down the peripheral net frame of preventing of net and descend, prevents weighing down that the net frame receives the tractive of wire rope and counter weight, can realize the buffering of one-level, and then receives the inflation of gas cell's second grade buffering to and buffer spring's tertiary buffering.
Further, the controller comprises a main control circuit module, an ultrasonic or laser speed sensor, an ignition driving circuit module and a power supply module, wherein the human body induction sensor is electrically connected with the main control circuit module, the ignition driving circuit module is electrically connected with the main control circuit module, and the ignition driving circuit module is electrically connected with an igniter; when the human body induction sensor detects that a human body enters a detection range, a signal is sent to the controller, the controller triggers the ultrasonic wave or laser speed sensor to work, and accurate detection of the falling acceleration of the human body can be realized in a larger range; the main control circuit in the controller receives the acceleration signal and sends an ignition enabling signal to the ignition driving circuit; the ignition drive circuit receives an ignition enable signal and transmits drive power to the igniter; the igniter is built in the gas generator and detonates an igniter in the gas generator.
The elevator shaft active anti-falling system and the working method thereof have the advantages and progresses that:
(1) The invention provides an elevator shaft active anti-falling system aiming at the technical blank, and the system is reasonable in design, simple in structure and capable of reducing or reducing the damage caused by falling accidents outside the elevator car and inside the shaft to the maximum extent.
(2) The invention provides triple protection for personnel falling to the bottom of the hoistway pit: (a) The balance weight is connected with the anti-falling net frame through a steel wire rope, so that the falling speed of the anti-falling net is slowed down; (b) The bottom of the anti-falling net is provided with the inflatable air bag, so that most impact energy of falling of a human body is effectively absorbed; (c) Buffer springs are additionally arranged on the bearing plate and the ground of the pit to further absorb the residual impact energy before the falling speed returns to zero.
Description of the drawings:
FIG. 1 is a schematic view of the cross-sectional configuration of the present invention;
FIG. 2 is a cross-sectional view M-M of FIG. 1;
FIG. 3 is a cross-sectional view taken along line N-N of FIG. 1;
FIG. 4 is a functional block diagram of the control mechanism of the present invention;
fig. 5 is a perspective view schematically illustrating another embodiment of the present invention.
The specific implementation mode is as follows:
the elevator shaft active anti-falling system comprises an elevator shaft 2 and a protection mechanism arranged in the elevator shaft, wherein the protection mechanism comprises a pulley 3, an anti-falling net frame 4, a bracket 5, a steel wire rope 6, a limiting column 7, a counterweight 8, a gas generator 9, a sliding guide shoe 12, an anti-falling net 13, a T-shaped guide rail 14, an inflatable air bag 15, a bearing plate 16 and a buffer spring 17;
4-6 brackets 5 can be arranged at the bottom of the elevator shaft 2, and the top end of each bracket 5 is rotatably hinged with a pulley 3; the bracket 5 is provided with a channel for facilitating the lifting of the counterweight, and the channel does not penetrate through the wall surface facing the anti-falling net frame in the radial direction of the channel, so that the bracket is formed into square steel; or the channel penetrates the wall surface facing the fall protection net frame in the radial direction thereof, so that the support is formed as a channel.
The limiting columns 7 are provided with a plurality of limiting columns, the number of the limiting columns is equal to that of the brackets 5, and the limiting columns are respectively arranged on the inner sides of the brackets 5; the limiting column is formed by two stop blocks with different heights side by side to form a step shape, wherein the higher stop block is positioned under the edge of the anti-falling net frame 4 to limit the lowest falling height of the anti-falling net frame 4, and the lower stop block is positioned under the edge of the bearing plate to limit the lowest falling height of the bearing plate.
The anti-falling net frame 4 is arranged among the plurality of supports, four corners of the anti-falling net frame are connected with first ends of steel wire ropes 6 wound on the pulleys 3, and second ends of the steel wire ropes 6 are connected with the balancing weights 8 in the supports; prevent weighing down the peripheral boots 12 that still set up of net frame, the slip is led boots 12 and is stood T type guide rail 14 sliding fit in the elevator well to realize vertical up-down moving, prevent weighing down to set up in the middle of the net frame prevent weighing down net 13, prevent weighing down net 13 and can be nylon net etc..
The cross-section of above-mentioned elevator well 2 is the rectangle, and a set of two relative walls of elevator well is pressed close to support 5, another set of two relative walls of elevator well is pressed close to T type guide rail 14, the border at preventing weighing down the net frame is established to the boots 12 is led in the slip, and the thickness direction extension of boots 12 at preventing weighing down the net frame is led in the slip to the area of contact of boots and T type guide rail is led in the slip has been increased.
The inflatable air bag 15 is arranged above a bearing plate 16 positioned at the bottom of an elevator shaft, an output pipeline of the gas generator 7 is communicated with the inflatable air bag and used for inflating the inflatable air bag, and a plurality of buffer springs 17 are arranged below the bearing plate.
The gas generator body is filled with an ignition agent and a gas generating agent, and the outlet of the gas generator is communicated with the inflatable air bag 15 through an output pipeline; the inflatable air bag has more than one air bag.
The elevator hoistway is also internally provided with a control mechanism, the control mechanism comprises a human body induction sensor 1, an ultrasonic wave or laser speed inductor 10 and a controller 11, and the human body induction sensor, the ultrasonic wave or laser distance sensor and the gas generator are electrically connected with the controller.
In order to further improve the safety, the anti-falling nets are provided with 3 anti-falling nets, namely a first anti-falling net, a second anti-falling net and a third anti-falling net, wherein the first anti-falling net is arranged in the middle of an anti-falling net frame 4 capable of vertically moving up and down, and the second anti-falling net and the third anti-falling net are hung at intervals between a basic hoistway door (the lowest elevator door in a hoistway) of an elevator hoistway and a support 5.
Supplementary inflatable air bags (the structure is the same as that of the inflatable air bags) are additionally arranged between the second anti-falling net and the third anti-falling net and the inner wall of the hoistway, the supplementary inflatable air bags can be folded and curled in respective backpacks, and the backpacks are provided with ejection ports for ejecting the supplementary inflatable air bags; the human body induction sensor 1 is provided in plurality.
The working method of the elevator shaft active anti-falling system comprises an elevator shaft 2 and a protection mechanism arranged in the elevator shaft, wherein the protection mechanism comprises a pulley 3, an anti-falling net frame 4, a bracket 5, a steel wire rope 6, a limiting column 7, a counterweight 8, a gas generator 9, a sliding guide shoe 12, an anti-falling net 13, a T-shaped guide rail 14, an inflatable air bag 15, a bearing plate 16 and a buffer spring 17;
during operation, when human response sensor detects that there is the human body to get into detection range, to controller signaling, controller trigger ultrasonic wave or laser velocity sensor work, can realize the accurate detection to human falling acceleration in great scope, master control circuit among the controller 11, it receives acceleration signal and sends ignition signal to the some firearm of gas generator 7, and some firearm work, some firearm light place in the gas generator 9 in the ignition of can detonating, the ignition burning makes gas bag 15 inflation, simultaneously, when the human body falls to preventing weighing down net 13, drives and prevents weighing down the peripheral net frame 4 of preventing weighing down net 13 and descend, prevents weighing down the net frame 4 and receives the tractive of wire rope and counter weight, can realize the buffering of one-level, and then receives the expanded second grade buffering of gas bag 15 to and buffer spring's tertiary buffering.
Further, the controller 11 includes a main control circuit module, an ultrasonic or laser speed sensor 10, an ignition driving circuit module and a power supply module, the human body induction sensor 1 is electrically connected with the main control circuit module, the ignition driving circuit module is electrically connected with the main control circuit module, and the ignition driving circuit module is electrically connected with the igniter; when the human body induction sensor detects that a human body enters a detection range, a signal is sent to the controller, the controller triggers the ultrasonic wave or laser speed sensor to work, and accurate detection of the falling acceleration of the human body can be realized in a larger range; the main control circuit in the controller 11 receives the acceleration signal and sends an ignition enabling signal to the ignition driving circuit; the ignition drive circuit receives an ignition enable signal and transmits drive power to the igniter; the igniter is built into the gas generator 9 and detonates the ignition agent in the gas generator.
The other embodiment of the invention comprises an elevator shaft 2 and a protection mechanism arranged in the elevator shaft, wherein the protection mechanism comprises a falling prevention net frame 4, a sliding guide shoe 12, a falling prevention net 13, a T-shaped guide rail 14 and a traction spring 18; prevent weighing down net 13 and lay and fix on the middle part prevents weighing down net frame 4 for the fretwork, T type guide rail 14 is vertical to be established on elevator well inside wall, slip is led boots 12 and is fixed on preventing weighing down net frame 4 lateral part to slip is led boots 12 and T type guide rail 14 clearance fit, be equipped with in the elevator well 2 and be used for upwards the tractive to prevent weighing down the tractive spring 18 of net frame 4, elevator well 2 bottom is equipped with spacing stop device 19 that prevents weighing down the net frame 4 and rise, before the use, prevents weighing down the net frame 4 and overcomes the tractive force of tractive spring and move down to the bottom of elevator well 2 in advance, prevents weighing down the net frame 4 and avoids its rising by stop device 19 is spacing, and this stop device 19 can be the electric push rod of extension, when sensing someone falls by human body inductive transducer 1 in elevator well 2, is controlled the electric push rod shrink by controller 11 to make prevent weighing down net frame 4 and break away from the spacing of electric push rod, and rise under the effect of tractive spring, thereby play the whereabouts of buffering person of falling.
The invention relates to an elevator shaft active anti-falling system and a working method thereof, which have the advantages and progresses that:
1. the invention provides an active anti-falling system for an elevator shaft, which aims at the technical blank and aims at solving the technical problems that the prior anti-falling technology for the elevator mostly centers on how to prevent the elevator car from squatting at the bottom, such as arranging a car anti-falling net bag to try to stop the car or arranging various obstacles to slow down the falling speed of the car so as to reduce the casualty degree, however, the serious casualty accident that more people fall from the outside of the car to a shaft pit actually occurs, and the invention can furthest reduce or lighten the injury caused by the falling accident which is positioned outside the car and inside the shaft.
2. The invention provides triple protection for personnel falling to the bottom of the hoistway pit: a. the balance weight is connected with the anti-falling net frame through a steel wire rope, so that the falling speed of the anti-falling net is slowed down; b. the bottom of the anti-falling net is provided with the inflatable air bag, so that most impact energy of falling of a human body is effectively absorbed; c. buffer springs are additionally arranged on the bearing plate and the ground of the pit to further absorb the residual impact energy before the falling speed returns to zero.
The above-described embodiments further explain the object, technical means, and advantageous effects of the present invention in detail. It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides an elevator well initiative system of preventing falling which characterized in that: the anti-falling device comprises an elevator shaft (2) and a protection mechanism arranged in the elevator shaft, wherein the protection mechanism comprises a pulley (3), an anti-falling net frame (4), a support (5), a steel wire rope (6), a limiting column (7), a balance weight (8), a gas generator (9), a sliding guide shoe (12), an anti-falling net (13), a T-shaped guide rail (14), an inflatable air bag (15), a bearing plate (16) and a buffer spring (17);
the plurality of brackets (5) are arranged at the bottom of the elevator hoistway (2), and the top end of each bracket (5) is rotatably hinged with a pulley (3);
the limiting columns (7) are provided with a plurality of limiting columns and are respectively arranged on the inner sides of the brackets (5);
the anti-falling net frame (4) is arranged among the plurality of supports, four corners of the anti-falling net frame are connected with first ends of steel wire ropes (6) wound on the pulleys (3), and second ends of the steel wire ropes (6) are connected with the balancing weights (8) in the supports; the periphery of the anti-falling net frame is also provided with a plurality of sliding guide shoes (12), the sliding guide shoes (12) are in sliding fit with T-shaped guide rails (14) erected in an elevator shaft to realize vertical up-and-down movement, and the anti-falling net (13) is arranged in the middle of the anti-falling net frame;
the inflatable air bag (15) is arranged above a bearing plate (16) positioned at the bottom of an elevator shaft, an output pipeline of the gas generator (7) is communicated with the inflatable air bag and used for inflating the inflatable air bag, and a plurality of buffer springs (17) are further arranged below the bearing plate.
2. The active fall arrest system for an elevator hoistway of claim 1, wherein: the spacing post comprises two not dogs of co-altitude side by side to form the ladder shape, wherein higher dog is located prevents weighing down under net frame (4) border, in order to be used for the spacing minimum descending height who prevents weighing down net frame (4), wherein shorter dog is located under the bearing plate border, in order to be used for the minimum descending height of spacing bearing plate.
3. The active fall arrest system for an elevator hoistway according to claim 1 or 2, characterized in that: the bracket (5) is provided with a channel for facilitating the lifting of the counterweight, and the channel does not penetrate through the wall surface facing the anti-falling net frame in the radial direction of the channel, so that the bracket is formed into square steel; or the channel penetrates the wall surface facing the fall protection net frame in the radial direction of the channel, so that the support is formed as a channel.
4. The active fall arrest system for an elevator hoistway of claim 3, wherein: the cross-section of elevator well is the rectangle, and a set of two relative walls of elevator well is pressed close to in support (5), another set of two relative walls of elevator well is pressed close to the T type guide rail, the boots are led in the slip and are established the border at preventing weighing down the net frame, and the thickness direction extension of boots at preventing weighing down the net frame is led in the slip to the area of contact of boots and T type guide rail is led in the slip has been increased.
5. The active fall protection system for an elevator hoistway as claimed in claim 4, wherein: the gas generator body is filled with an ignition agent and a gas generating agent, and the outlet of the gas generator is communicated with an inflatable air bag (15) through an output pipeline; the inflatable air bag comprises more than one air bag.
6. The active fall arrest system for an elevator hoistway of claim 5, wherein: still be equipped with control mechanism in the elevator well, control mechanism includes human induction sensor (1), ultrasonic wave or laser speed inductor (10) and controller (11), human induction sensor, ultrasonic wave or laser distance sensor and gas generator are connected with the controller electricity.
7. The active fall arrest system for an elevator hoistway of claim 6, wherein: the number of the anti-falling nets is 3, and the anti-falling nets are respectively a first anti-falling net, a second anti-falling net and a third anti-falling net, wherein the first anti-falling net is arranged in the middle of an anti-falling net frame (4) capable of vertically moving up and down, and the second anti-falling net and the third anti-falling net are suspended at intervals between a base layer hoistway door and a support (5) of an elevator hoistway; the active fall arrest system for an elevator hoistway of claim 7, wherein: supplementary inflatable air bags are additionally arranged between the second anti-falling net and the third anti-falling net and the inner wall of the hoistway, the supplementary inflatable air bags can be folded and curled in respective backpacks, and the backpacks are provided with ejection ports for ejecting the supplementary inflatable air bags; the human body induction sensor (1) is provided with a plurality of sensors.
8. The utility model provides an elevator well initiative anti-falling system which characterized in that: the elevator safety protection device comprises an elevator shaft (2) and a protection mechanism arranged in the elevator shaft, wherein the protection mechanism comprises an anti-falling net frame (4), a sliding guide shoe (12), an anti-falling net (13), a T-shaped guide rail (14) and a traction spring (18); prevent weighing down net (13) and lay and fix on the middle part prevents weighing down net frame (4) for the fretwork, vertical the establishing on elevator well inside wall of T type guide rail (14), it fixes on preventing weighing down net frame (4) lateral part to slide and lead boots (12) and T type guide rail (14) clearance fit to slide, be equipped with in elevator well (2) and be used for upwards the tractive to prevent weighing down traction spring (18) of net frame (4), elevator well (2) bottom is equipped with spacing stop device (19) that prevent weighing down net frame (4) and rise.
9. A working method of an active anti-falling system of an elevator shaft is characterized in that: the active anti-falling system for the elevator shaft comprises the elevator shaft (2) and a protection mechanism arranged in the elevator shaft, wherein the protection mechanism comprises a pulley (3), an anti-falling net frame (4), a bracket (5), a steel wire rope (6), a limiting column (7), a balance weight (8), a gas generator (9), a sliding guide shoe (12), an anti-falling net (13), a T-shaped guide rail (14), an inflatable air bag (15), a bearing plate (16) and a buffer spring (17);
the multiple brackets (5) are arranged at the bottom of the elevator hoistway (1), and the top ends of the brackets (5) are rotatably hinged with a pulley (3);
the limiting columns (7) are provided with a plurality of limiting columns and are respectively arranged on the inner sides of the brackets (5);
the anti-falling net frame (4) is arranged among the plurality of supports, four corners of the anti-falling net frame are connected with first ends of steel wire ropes (6) wound on the pulleys (3), and second ends of the steel wire ropes (6) are connected with balancing weights (8) in the supports; the periphery of the anti-falling net frame is also provided with a plurality of sliding guide shoes (12), the sliding guide shoes (12) are in sliding fit with T-shaped guide rails (14) erected in an elevator shaft to realize vertical up-and-down movement, and the anti-falling net (13) is arranged in the middle of the anti-falling net frame;
the inflatable air bag (15) is arranged above a bearing plate (16) positioned at the bottom of an elevator shaft, an output pipeline of the gas generator (7) is communicated with the inflatable air bag and is used for inflating the inflatable air bag, and a plurality of buffer springs (17) are arranged below the bearing plate;
the elevator hoistway is also internally provided with a control mechanism, the control mechanism comprises a human body induction sensor (1), an ultrasonic wave or laser speed inductor (10) and a controller (11), and the human body induction sensor, the ultrasonic wave or laser distance sensor and the gas generator are electrically connected with the controller;
during operation, when human response sensor detects that there is the human body to get into detection range, to controller signaling, controller trigger ultrasonic wave or laser velocity sensor work, can realize the accurate detection to human falling acceleration in great scope, master control circuit in controller (11), it receives acceleration signal and sends ignition signal to the some firearm of gas generator (7), and some firearm work lights the ignition agent that places in gas generator (9) and can detonate, and the ignition agent burning makes inflatable air bag (15) inflation, simultaneously, when the human body falls to preventing weighing down net (13), drives and prevents weighing down net frame (4) of weighing down net (13) periphery and descend, prevents weighing down net frame (4) and receives the tractive of wire rope and counter weight, can realize the buffering of one-level, and then receives the expanded second grade buffering of inflatable air bag (15) to and buffer spring's tertiary buffering.
10. The method of claim 9, wherein the method further comprises the step of: the controller (11) comprises a main control circuit module, an ultrasonic or laser speed sensor (10), an ignition driving circuit module and a power supply module, wherein the human body induction sensor (1) is electrically connected with the main control circuit module, the ignition driving circuit module is electrically connected with the main control circuit module, and the ignition driving circuit module is electrically connected with an igniter; when the human body induction sensor detects that a human body enters a detection range, a signal is sent to the controller, the controller triggers the ultrasonic wave or laser speed sensor to work, and accurate detection of the falling acceleration of the human body can be realized in a larger range; the main control circuit in the controller (11) receives the acceleration signal and sends an ignition enabling signal to the ignition driving circuit; the ignition drive circuit receives an ignition enable signal and transmits drive power to the igniter; the igniter is built into the gas generator (9) and detonates an igniting agent in the gas generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490299.4A CN115818386A (en) | 2022-11-25 | 2022-11-25 | Elevator shaft active anti-falling system and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490299.4A CN115818386A (en) | 2022-11-25 | 2022-11-25 | Elevator shaft active anti-falling system and working method |
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| CN115818386A true CN115818386A (en) | 2023-03-21 |
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| CN202211490299.4A Pending CN115818386A (en) | 2022-11-25 | 2022-11-25 | Elevator shaft active anti-falling system and working method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116873688A (en) * | 2023-09-01 | 2023-10-13 | 浙江昇达机电设备有限公司 | Elevator and control system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116873688A (en) * | 2023-09-01 | 2023-10-13 | 浙江昇达机电设备有限公司 | Elevator and control system thereof |
| CN116873688B (en) * | 2023-09-01 | 2023-12-12 | 浙江昇达机电设备有限公司 | Elevator and control system thereof |
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