WO2022243719A1

WO2022243719A1 - Automatic anti-fall electromechanical lock-in elevator shaft

Info

Publication number: WO2022243719A1
Application number: PCT/IB2021/054190
Authority: WO
Inventors: Gholamreza SAFARPOURMALEKROUDI; Mohammadreza SAFARPOURMALEKROUDI
Original assignee: Safarpourmalekroudi Gholamreza; Safarpourmalekroudi Mohammadreza
Priority date: 2021-05-16
Filing date: 2021-05-16
Publication date: 2022-11-24

Abstract

Electromechanical automatic anti-fall locking device in the elevator shaft, along with traffic lights and hazard warning that this lock is installed on the hinged doors of the elevator. This lock works with the mechanical force of the elevator door opener and the electric power of the 12-volt battery, and after creating a fall danger mode, it locks the hinged door automatically, and at the same time turns on the red light and alarm, and after eliminating the danger, unlocks the lock and turns off the red light and alarm.

Description

Automatic anti-fall electromechanical lock-in elevator shaft

Transporting (B)- lifting (B66)- elevators (B66B 13/16) and fixed construction (E)- earth or rock drilling mining (E21)- earth or rock drilling (E21B 41/00)

The history of elevator door locks dates back to about one hundred and fifty years ago when the elevator door was opened and closed by the operator in the cabin, and at the same time the first elevator door lock was made and since then the function of locks to It is a face and has not changed. Despite the fully automatic doors, there is always a technical problem. The structure of all hinged door locks has a movable arm (inside the well), and a fixed arm inside the lock, toggle, tab, and two microswitches, the first microswitch whose platinum is visible on the frame (fork) operates when the door is closed It slows down and the contact closes. (Map 1 No. 26) so that when the door is closed by the fork contact installed on the door leaf, the sheets of platinum are bridged and the electrical safety circuit of the elevator steering is established.

Also, the platinum mechanical contact lock is another circuit that, when performing a mechanical lock, closes its contact and completes the safety circuit, ie when the cab reaches floor level and stops, the door opener arch mounted on the cab ( No. 32) and is commanded by the elevator control panel, it is without electricity and at this time, the bow is affected by its jack (magnetic or mechanical) which is under pressure, it opens and strikes the lock lever (moving arm) and enters when the locking tab is pulled back and the door latch is released. Therefore, if for some reason the safety circuit is bridged or due to the lack of electricity in the city, the elevator is turned off and the cabin is manually moved to other floors and the floor door is not locked, it is possible to fall. There are no safeguards in place for the above-unexpected situations, and the risk of falling still threatens users, and many incidents have occurred so far.

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The utility model discloses an anti-falling safety protection device for an elevator landing door. The anti-falling safety protection device comprises a main fixing hook, the main lock hook, an auxiliary fixing hook, and an auxiliary lock hook. The main lock hook is connected with a main lock hook unlocking device which can drive the main lock hook to rotate so that the main hook and the main fixing hook are manually unlocked. A four-connecting-rod mechanism is arranged on one side of the main lock hook. A position retaining device is arranged between the main lock hook and the first connecting rod of the four-connecting-rod mechanism. The auxiliary lock hook is connected with an auxiliary lock hook unlocking device which can drive the auxiliary lock hook to rotate so that the auxiliary lock hook and the auxiliary fixing hook are manually unlocked. According to the anti-falling safety protection device, a door lock of a mechanical structure is installed on the landing door; due to the two-lock-hook structure, the risk that the landing door is accidentally opened because one lock loses efficacy can be avoided; due to secondary unlocking, the accident that a person falls in a shaftway is avoided.

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The utility model discloses an elevator car door lock device which comprises a main lock hook assembly, an auxiliary hook, and an unlocking blade. The main lock hook assembly is installed on a door crane base board, the auxiliary hook is fixed on a car door, the unlocking blade is fixed on a landing door, and the main lock hook assembly comprises a base, a guiding shaft, a sliding block, a reset spring, a middle plate, a main hook, an upper stopping ball, a main hook reset coil spring and a locating bolt, wherein the base is fixed on the door crane base board, the guiding shaft is arranged on the base, the sliding block is in sliding fit with the guiding shaft, the reset spring is connected between the sliding block and the base in an abutting-against mode, the middle plate and the sliding block are fixed, the middle plate is connected with the auxiliary hook in an abutting-against mode, the main hook is installed on the middle plate through a rotating shaft and matched with the auxiliary hook, the upper stopping ball is installed on the main hook through a fixing shaft and matched with the unlocking blade, the rotating shaft is sleeved with the main hook reset coil spring, the two force application ends of the main hook reset coil spring abut against the middle plate and the fixing shaft respectively, and the locating bolt is in threaded fit with the middle plate and used for limiting the rotating angle of the main hook. The elevator car door lock device is simple in structure, safe in use, and convenient to debug.

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An anti-fall transmission device for a handling door (1) having a flexible curtain (5) to be stacked or rolled about a drive shaft (4) during the movements thereof between an open and a closed position, includes a separate electric motor or gear motor (7) attached along a rotational axis which is offset and parallel to that of the drive shaft (4), as a protective anti-fall device (8) for connecting the motor or the gear motor (7) to the drive shaft (4) and for preventing the flexible apron (5) from accidentally falling.

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The utility model relates to an automatic locking hook device, which includes a support framework, hooks, and a locking rod, a pair of open-close type hooks which are arranged symmetrically are installed on the support framework by a rotating shaft, the upper parts of the hooks are provided with shoulders which can place a lock core, the lower parts which are corresponding to the inside shoulders of the hooks are provided with bosses which are contacted with suspension rings, the locking rod is movably arranged on the support framework by a frame, the middle of locking rod is provided with the lock core which is protrudent downwards, the lock core is matched with the shoulders of the upper parts of the hooks and is arranged on the opening shoulders of the hooks, the two hooks are closed and locked automatically; the lock core is moved out of the shoulders of the hooks, the lower parts of the hooks are opened outward and the lifted object falls. The utility model has a simple structure, convenient operation and usage, safety and reliability, the automatic control of the lifting and the release of a hammer can be realized, and the hooks have a self-locking function and a high degree of safety.

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The invention relates to a full-automatic velocity-limiting anti-falling device. The full-automatic velocity-limiting anti-falling device is composed of a position velocity measuring device, an electric control device, a capturing braking device and a resetting device, a position velocity measuring sensor measures a position velocity signal and sends to a PLC controller, the PLC controller controls the electric device, a wedge-shaped slide block is shrunk, a crank arm cam is driven to rotate by the shrinkage force of an extension spring, a cam rotates along with the crank arm cam to brake and rubs a steel wire rope through gear transmission, and then the cage brake is realized. The full-automatic velocity-limiting anti-falling device is featured with convenience in mounting, high automatic degree, sensitive and reliable control, and good brake performance.

Automatic anti-fall device for power-driven lifting machinery

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The device, adapted to be associated with a motorized hauling installation, comprises a self-clamping jaws block with a safety cable passing through it onto which the load can be transferred by clamping the jaws. The jaws block is connected using control rods to a mobile chassis of which one end is adapted to pivot, in case of a fall, about a fixed point of the casing, this pivoting action activating an electric detector which stops the machine motor.

In general, the proposed designs are mechanical locks or elevator deceleration and no design is similar to the expressed design. The technical realm associated with this invention in the field of electromechanical engineering and electromechanical automation with a warning about the safety of the elevator hinged door, which can intelligently and automatically pull the door in an electric lock when the user is in danger of falling into the elevator shaft. The user locks the door electrically before opening it to prevent users from falling, and at the same time warns through a red light and alarm.

Automatic electromechanical anti-fall lock in the elevator shaft is a product to ensure the safety of users when using the elevator when the mechanical lock of the elevator door is in trouble and the elevator floor door is not mechanically locked due to closure. Use the elevator in a hurry or with disturbances of the senses and are not aware of the presence of the cabin on the floor level. In these cases, the automatic electric lock can prevent the accident from falling into the elevator shaft by electrically locking the door at the same time as the alarm. The function of this lock is intelligent and it is activated when the door is pulled by the user and is deactivated when the door is released. It gets its electric power from the 12-volt rechargeable battery in the control panel and gets its command from the mechanical movement of the door latch and the door opener. It is also active and does not interfere with the normal operation of the elevator and easily assigns the floor door to users, and this lock can be used to replace the previous locks.

The ever-increasing progress of industry has forced human beings to use the tools produced to survive, but due to non-compliance with standards in production or lack of technical knowledge in that field, it can create irreparable dangers for human beings. The elevator is installed in two ways, fully automatic and semi-automatic. Fully automatic elevators with automatic floor door, the operation of opening and closing the door is done by the elevator system and the semi-automatic elevator with hinged floor door opening is done by the user. This technical problem occurs in most elevators with hinged doors and for three main reasons: 1. Defective main lock and its safety circuit 2. Leaving the door open by miscellaneous people or service personnel 3. Users rushing when using the elevator which leads to the downfall of elevator users.

This can cause users to have an accident when the cabin is not level and there is no warning on that floor. Previous locks have not responded to this problem and the risk of falling still threatens users and thousands of lives are taken this way every year. However, the purpose of this invention is to completely prevent the occurrence of such accidents, which can completely prevent users from falling into the elevator shaft. Therefore, if in any case the elevator floor door is completely open or the door handle is closed but not locked, in the first case with an alarm and the second case with an electric lock, it eliminates the danger and provides complete safety for users. Also, this lock can easily allocate each floor through some switches for people living on that floor, because in single-unit or two-unit buildings, in the absence of owners in the apartment, the elevator route is an unprotected route that thieves from This way they can easily access their desired class. The technical realm associated with this invention in the field of electromechanical engineering and electromechanical automation with a warning about the safety of the elevator hinged door, which can intelligently and automatically pull the door in an electric lock when the user is in danger of falling into the elevator shaft. The user locks the door electrically before opening it to prevent users from falling, and at the same time warns through a red light and alarm.

Solution of problem

The claimed lock, using previous knowledge to solve the technical problem, using four micro switches, along with a 12-volt thrust solenoid, which is equipped with an automatic electric locking tab, the tab of which is made in such a way that it makes the door automatic to be closed And a limit switch with open and closed contact and alarm system, placed inside each lock and works intelligently with 12 volts power without the need for a command from the control panel, and no electrical board is used in its construction. After creating a dangerous situation, which includes: (opening the door by residents or service workers, defect of the control panel to bridge the lock safety circuit, by the service worker or changes in the movement of the door structure, due to cold and heat in different seasons or due to the same Shrinkage and expansion due to temperature changes or the door does not close properly after being visited by non-specialists, etc.) intelligently detects the dangerous state and prevents the door from being opened by an automatic electric lock, and at the same time Warning with red traffic lights and alarms.

The function of the lock as described in the map (1): Includes the body (No. 1) with a height of 28 and a width of 8 and a diameter of 4 cm, the parts of which are as follows: A 12-volt solenoid with a jump tab (No. 3 and 4) which is responsible for automatic locking. 12V power input connector or terminal and its outputs (No. 2). Safety circuit fork contact microswitch box (No. 5) which announces the closing of the door for the control panel and its plates (numbers 6 and 7), which move backward when the door of these two plates is closed and establish a safety circuit through the fork contact that is installed on the door latch. The two microswitches (numbers 8 and 9) that are placed under the platinum of the safety circuit (numbers 6 and 7) are opened or closed by moving the platinum contact of the fork. The internal movable locking arm (No. 10) is responsible for carrying the toggle and locking carriage and receives its force from the outer movable arm.

The carriage support rod and toggle (No. 11) are completely fixed. The second tab or lock toggle (No. 12), which keeps the main tab of the lock half-locked, and when the door is opened and the cabin is not present, through this tab, the door closes itself. The locking tab (No. 13) locally locks the door mechanically by dipping into the door latch. The stroller stand (No. 14) is responsible for carrying the platinum lock and can simultaneously activate the tripod microswitch (No. 17). The platinum contact lock (No. 15) is established by being placed on the contact base (No. 16) of the mechanical lock safety circuit. Connector or terminal of the safety circuit (No. 18) in which the input and output of the safe lock circuit are located. Alarms (No. 30 in ) that can be installed inside the lock or the door form. Outdoor warning lights are installed on the door frame and, like a permitted traffic light, declare awaiting and restricted mode. Switch (No. 31) that can allocate the door of each floor to the occupants of that floor because when the occupants are not present on that floor, the entrance is always open for thieves through the elevator door and thieves can access it through the elevator. Present floor This switch easily and at the lowest cost allocates the floor of that floor for consumers and prevents the installation of nightshade locks and pendant locks that have an ugly appearance behind the elevator door.

Advantage effects of the invention

1 - Complete prevention of users falling into the elevator shaft.

2 - Automatic locking of the door in case of danger

3- Announcing danger warning and traffic management of users for optimal use of the elevator

4- Dedicating the doors of the elevator floors, if necessary, without consuming continuous energy

5 - No consumption in the normal operation of the elevator and very little consumption in times of danger.

6- Very low depreciation and long life.

7- Ability to produce within the country and create employment

8- Very easy to replace and install like the previous locks.

9- Lack of sensitivity to environmental noise

10- Knowledge-based invention and realization of production leap.

11 - Low-cost price.

12- Resolving the import concern during the sanctions.

13- Creating an export market.

14- Can be installed at the place of installation of previous locks.

: (inside view) The inside view of the lock is from the inside of the well. (Door side view) The side view of the door is the entrance side of the door. (Backside view) The back view of the lock, which is located inside the frame, and the platinum contact and the location of the key is known from behind the door frame (Nos. 26, 26, and 24) and are installed on the hinged door.

: Hinged door view from inside the well (1 of 2). From the side of the lock (2 of 2). The entrance shows the door sill (3 of 2).

: The electrical circuit shows the automatic lock "when the door is closed and the cabin is not level"

: 1. Main body 2. Electrical lock input and output connector 3. 12V linear thrust solenoid 4. Solenoid tab 5. Fork contact micro microswitch box 6. First platinum contact microswitch contact 7. Second platinum contact microswitch with two microswitches The first 9. Microswitch Bosch Baton The second 10. Internal movable arm 11. Fixed rod holding carriage and toggle 12. Second tab lock (lock toggle) 13. Main tab lock 14. The carriage carrying the main and second tab and carrying platinum mechanical lock 15. Platinum microswitch mechanical lock safety circuit 16. Platinum base microswitch safety circuit mechanical lock 17. Three-pin microswitch 18. Input and output connector of safety circuit and green and yellow lights 19. View of the electrical circuit of microswitch 20-pin crankshaft Locksmith lock Mechanical lock 21. Limit switch with an open contact and a closed contact with arm and pulley 22. Place of installation of the lock on the door frame 23. External movable arm with pulley 24. Bosch baton microswitch with triangular key 25. Triangle key location 26. Exterior view of the fork micro-switch contact and the location of the fork contact.

: 27. Green lamp 28. Yellow lamp 29. Red lamp 30. Alarm 31. Dedicated door switch 32. Door opener

Examples

This lock can be easily installed in the place of installation of the previous locks with the same shape, with the difference that a hole with a diameter of 20 mm for the exit of the solenoid tongue rod on the door frame and a hole with a diameter of 18 mm on the latch. It needs a door and to power two wires with a diameter of 0.75 in parallel from the 12-volt battery that is available in the control panel, it feeds the solenoid and the hazard lights and alarms, and other things can be done like the previous locks. The yellow and green lights are powered by 24 volts dc power available on the floor knob and do not need to be wired from the control panel.

The best application of this product in the industry is its replacement in hinged door locks used in the elevator and elevator industry, and with a little change, it can be installed on fully automatic elevator doors. In general, the function of this lock and its functionality with similar devices is practical. This product has been implemented and tested with full certainty on all types of semi-automatic elevators. But this does not mean that it can not be used in other industries. Rather, by using the methods specific to each industry and with a little change, it will be able to be implemented for other devices.

Claims

What is claimed:
Automatic electromechanical anti-fall locking device in the elevator shaft, along with traffic lights and hazard warning, which automatically locks the hinged door after creating a fall hazard mode and at the same time turns on the red light and danger alarm after eliminating the danger, it unlocks the lock and turns off the red light, and the alarm.

According to claim 1, this lock takes its command from its internal micro-switches and has no command dependence on the elevator control panel and is used when there is no city electricity or the elevator is off, also in cases of technical defects mechanical lock, the electric lock prevents the door from opening.

According to claim 2, two Bosch Baton microswitches with open and closed contacts (No. 8 and 9) are embedded in the box of the fork contact microswitch (No. 5 in Figure 1), which is simultaneous with the closing of the door and through the impact of the rake with the fork contact plates (numbers 6 and 7), these two plates are moved simultaneously and cause the switching of Bosch Button microswitches (numbers 8 and 9), and through this, the 12-volt electrical circuit is disconnected or connected by opening and closing the door latch.

According to claim 3, the micro-switches intelligently activate or deactivate the electromechanical automatic anti-fall lock in the well from two directions, and due to the high safety factor, the two plates of platinum are placed in parallel in the system if one of these two plates (Nos. 6 and 7) is broken or defective, the anti-fall lock can be activated or deactivated through the plate and the other Bosch Baton microswitch to confirm the closing of the door latch or announce its openness for the electric lock system.

According to claim 4, a micro-switch (No. 24) is installed next to the triangular key tab, which breaks the automatic locking solenoid circuit when the door is opened during service and after the triangular key is in place and allows the door to be opened for service work.

According to claim 1, a limit switch with open and closed platinum (No. 21) which is installed under the outer movable arm (No. 23) on the door frame and itself with the force of the door opener to open and close the platinum it performs itself at the same time as opening and closing the lock, and its platinum completes the circuit that comes out of the Bosch Baton microswitches, and by disconnecting the circuit, the presence of the cabin and by connecting the circuit, the absence of the cabin on the floor for the system announces anti-fall lock.

According to claim 6, the operation of the limit switch is such that if the mechanical locking system and its main tab are out of the ordinary and do not have the power to turn and lock the door for various reasons, the limit switch arm such as operates independently of the outer arm of the mechanical lock, returns to its original position and announces the absence of the cabin for the electric anti-fall lock, thus the anti-fall electric lock is in standby mode, through which people fall to it is prevented inside the elevator shaft.

According to claim 7, several switches (No. 31 in Figure 2) are mounted on the frame at the door sill and act as a bridge or platinum bridge switching switch (No. 21 in Figure 1) when occupants In each floor, strangers do not want to have access to their floor by turning this switch, they can prevent their floor from the presence of strangers or thieves without any disruption in the normal operation of the elevator.

According to claim 1, at the same time as the door is electrically locked, a 12-volt red light that draws its power from the battery and its electrical command from the microswitch and limit switch, which is turned on in all cases of fall risk, and after fixing the danger of the light goes out.

According to Claim 9, a hazard alarm number (No. 30, Figure 2) which operates on a 12-volt battery and completes its circuit via a microswitch and limit switch, sounding in all hazardous modes and after the danger is gone, it stays off so that people who do not pay attention to the visual warning of the red light, notice the danger.

According to claim 10, a green light (No. 27, Fig. 2) mounted on the door form on the doorstep, only when the cab is at floor level, circulates its circuit via the Platinum Contact Limit Switch (No. 21) and the platinum microswitch (No. 17) is completed and turned on via 24V electricity. If there is no city electricity or the elevator is off, this light is off and the users are not active or the cabin is not on that floor for users announces.

According to claim 11, a yellow light (No. 28, Fig. 2) mounted on the door frame at the door sill and when the cab is not on that floor, it completes its circuit and turns on the 24-volt power supply in the floor knob by the microswitch (No. 17). When the yellow light is on, the user notices the absence of the cabin on that floor and waits for the presence of the cabin, and if the yellow light is off with the green light, it warns the users that the elevator is not active.

According to claim 1, a linear thrust (jump) solenoid is made in such a way that it can perform the automatic closing of the door, this part is activated by the battery power and is placed inside the lock and its command from the continuation of the solenoid circuit.

According to claim 1, in case of danger (ie defect of the main mechanical lock) and absence of the cabin on the floor after the user pulls the door, at the same time as closing the microswitch platinum (numbers 8 and 9 of Figure 1) and if closed Platinum microswitch (No. 24 Map 1) The solenoid magnet is activated and before opening the door, an automatic electric lock is operated and its tongue enters the door latch and the automatic locking operation is performed and when the door is released by the user, it is circulated by platinum The microswitch (numbers 8 and 9 of Figure 1) is disconnected and the electric automatic locking tab returns to its original position and the electric automatic lock is released.

According to claim 1, a tripod microswitch (No. 17 in Figure 1) is embedded under a carriage (No. 14 in Figure 1) with an electrical circuit of 24 volts and its driving force from the door opener arc (No. 32 in Figure 1) from It is held by the locking arms (Nos. 23 and 10 of Fig. 1) and when the cab is at floor level, its base is pressed by the end of the carriage (No. 14 of Fig. 1) and the platinum closes open and the platinum opens and closes. With this operation, the green light, after the physical presence of the cabin on the floor level, turns on and the yellow light goes out, and when the cabin goes out of the floor level, the yellow light turns on and the green light turns off, which is mechanical and Error-free guarantee the presence and absence of the cabin for users.