阅读说明：本技术 施工升降机与楼层防护门联锁装置及方法 (Construction elevator and floor protective door interlocking device and method ) 是由 陈江伟 李泽政 张洪川 侯庆敏 乔海龙 于 2021-07-01 设计创作，主要内容包括：本发明的施工升降机与楼层防护门联锁装置,包括电梯架、电梯轿厢和安全通道,安全通道的两侧设置有两防护栏,安全通道中设置有防护门,两防护栏之间固定有与防护门相配合的磁力锁；防护门与电梯轿厢之间的防护栏上设置有配电箱、距离传感器和开门按钮,距离传感器用于检测电梯轿厢是否达到相应楼层,电梯轿厢内设置有对轿厢安全门的开关状态进行检测的行程开关。本发明的联锁装置及方法,只有当所有楼层上的防护门关闭到位且轿厢安全门也关闭到位后,电梯才可运行,以及只有当检测到电梯轿厢达到该楼层后,才可开启防护门,确保了电梯运行过程中不会有人员进入,有效避免了人员从楼层开口处坠楼事故的发生。(The invention relates to an interlocking device of a construction elevator and a floor protective door, which comprises an elevator frame, an elevator car and a safety channel, wherein two sides of the safety channel are provided with two protective fences, the safety channel is internally provided with a protective door, and a magnetic lock matched with the protective door is fixed between the two protective fences; be provided with block terminal, distance sensor and door opening button on the rail guard between guard gate and the elevator car, distance sensor is used for detecting whether elevator car reaches corresponding floor, is provided with the travel switch who detects the on off state of car emergency exit in the elevator car. According to the interlocking device and the interlocking method, the elevator can be operated only when the protective doors on all floors are closed in place and the car safety door is also closed in place, and the protective doors can be opened only when the elevator car is detected to reach the floor, so that the situation that people cannot enter the elevator in the operation process is ensured, and the occurrence of a falling accident of people from the floor opening is effectively avoided.)

1. An interlocking device of a construction elevator and a floor protective door comprises an elevator frame (1), an elevator car (2) and a safety channel (5) arranged on the ground (3) of each floor, wherein the elevator frame is closely adjacent to a building, the lower end of the elevator frame is fixed on a foundation, and the elevator car is arranged on an elevator through a lifting driving device; the method is characterized in that: two protective guards (4) extending to the edge of the floor (3) are arranged on two sides of the safe passage (5), a protective door (6) is arranged in the safe passage, and a magnetic lock (7) matched with the protective door is fixed between the two protective guards; a distribution box (8), a distance sensor (9) and a door opening button (10) are arranged on a protective guard between the protective door and the elevator car, a door access power supply controller (15) is arranged in the distribution box, the detection direction of the distance sensor faces towards the elevator frame and is used for detecting whether the elevator car reaches a corresponding floor or not, and the door opening button is arranged at a position which is conveniently touched by a human hand; a car safety door (11) is arranged on one side of the elevator car facing the safety passage, and a travel switch (12) for detecting the opening and closing state of the car safety door is arranged in the elevator car.

2. The construction elevator and floor protection door interlock according to claim 1, wherein: the door-opening control system comprises a relay (16), a distribution box (8) is used for supplying power to a door control power supply controller (15), two ends of a normally-open point output of a distance sensor and a coil of the relay which are connected in series are connected to a power supply output of the door control power supply controller, and two ends of a door-opening button and a normally-open point of the relay which are connected in series are connected to a signal input end of the door control power supply controller; the power output of the entrance guard power supply controller is connected with the power supply end of the magnetic lock (7), and the door closing signal of the magnetic lock is connected with a travel switch (12) in the elevator car (2) in series to control the on-off of the power supply of the lifting driving device of the elevator car.

3. The construction elevator and floor protection door interlock according to claim 1 or 2, wherein: the bottom of elevator car (2) towards the gate of escape way (5) is provided with upset footboard (14), and the rotatory back of upset footboard is used for taking on the outer edge on floor ground (3) to the realization is to the sheltering from of gap between elevator car and the floor ground.

4. The construction elevator and floor protection door interlock according to claim 1 or 2, wherein: and the door closing signals on all floor grounds (3) are connected in series and then connected into a signal concentrator (17), and the signal concentrator is connected into the elevator car (2) through a following cable (13).

5. The construction elevator and floor protection door interlock according to claim 1 or 2, wherein: the side of the protective door (6) on all floors facing the building is provided with a wireless calling device (18).

6. A control method of the construction elevator and floor protection door interlock device according to claim 1, which is implemented by the steps of:

a) the protective door is switched in, if the protective door is in a closed state, the door closing signal of the magnetic lock is connected with the travel switch in series in a closed state, and if the protective door is in an open state, the door closing signal of the magnetic lock is connected with the travel switch in series in an open state;

b) the car safety door state is accessed, when the elevator car is in an opening state, the travel switch is connected with the door closing signal of the magnetic lock in series in an opening state, and when the elevator car is in a closing state, the travel switch is connected with the door closing signal of the magnetic lock in series in a closing state;

c) the elevator runs, only when all floor protective doors are in a closed state and a travel switch of an elevator axle is in a closed state, a lifting driving device of an elevator car can be electrified, and the electrified elevator car carries out lifting operation;

d) a person on a certain floor stands outside the protective door to take a call of the elevator, and after receiving the call, a driver of the elevator car stops the elevator car at the floor called by the person;

e) when the distance sensor detects that the elevator car reaches the floor, the distance sensor is connected with a coil of the relay in series in a closed state, and the coil of the relay is electrified; when the elevator car does not reach the floor, the distance sensor is connected with a coil of the relay in series in a closed state, and the coil of the relay is not electrified;

f) the protective door is opened, and the access control power supply controller can electrify the coil of the relay through the distance sensor only when the distance sensor detects that the elevator car reaches the floor; after the relay coil is electrified, a normally-open point of a relay connected with the door opening button in series is closed, after a driver or a worker presses the door opening button, the door control power supply controller detects a closing signal of the door opening button, the power supply to the magnetic lock is disconnected, and the protective door is opened at the moment.

Technical Field

The invention relates to an interlocking device and a method, in particular to an interlocking device and a method for a construction elevator and a floor protective door.

Background

The construction elevator (also called a construction elevator) is one of indispensable large-scale mechanical equipment in the building industry, and basically, the construction elevator can be used in places with building construction, can realize the quick vertical transportation of (building) materials, and conveys building materials and workers to each floor, thereby greatly shortening the construction period and being applied and popularized in the existing construction buildings.

However, the use of the construction elevator also has certain risks, and because the construction elevator is loaded by passengers and cargoes together, works under the open air condition, has a severe working environment and more uncertain factors, the construction elevator is also one of the important dangerous sources of the construction site. Over the years, the safety accidents of the field construction elevator frequently occur, wherein the accidents caused by the defects of the floor protective door which is not well protected or not closed manually occupy a considerable proportion, and the like accidents are found through comprehensive analysis of the similar accidents, and the reasons of the accidents mainly comprise the following two aspects.

Firstly, floor elevator mouth guard gate is not closed along with the hand: the protective door of the construction elevator is of a full-fence type structure, so that the elevator car is difficult to control or ensure to be always in a closed position in a non-stop state, and the protective door can be opened by a person to be ridden at any time. The simple solution is to lock the protective door of the elevator entrance on each floor, which is directly controlled by the elevator driver, and the elevator car is opened after arriving. However, the method is complicated, and if an elevator driver is afraid of trouble or in a high-peak stage of operation with frequent stopping, the elevator driver is difficult to persist for a long time, and the operability is poor. Because of this, the floor elevator mouth guard gate does not close or is opened in advance when the car does not arrive, causes the accident that falls from the floor mouth to take place when the construction site, puzzles one of the outstanding problems of construction safety production.

Secondly, the height of the floor door is low, which is not enough to ensure the safety: according to the regulations of high-altitude operation safety technical Specifications for building construction (JGJ 80-2016), the manufacturing height of the floor edge protection is generally 1.8m, and the safety requirement is met. The actual situation of the site is that when the floor protection is at the height, people waiting for the elevator often can be observed from the probes on the two sides of the protection door unconsciously, and if the people do not observe the elevator car, the accident of crushing injury can be caused when the running elevator car passes through the floor. In the book of safety general knowledge reading of building constructors, in order to ensure the safe operation of a portal frame and a derrick material hoist, a protective door must be added at the opening of a feeding platform, constructors cannot rest on the platform, and the floor protective door of an elevator is similar to the situation, so the same safety requirements are met.

Disclosure of Invention

The invention provides a construction elevator and floor protection door interlocking device and a method for overcoming the defects of the technical problems.

The invention relates to an interlocking device of a construction elevator and a floor protective door, which comprises an elevator frame, an elevator car and a safety channel arranged on the ground of each floor, wherein the elevator frame is arranged close to a building; the method is characterized in that: two protective guards extending to the floor ground edge are arranged on two sides of the safe passage, a protective door is arranged in the safe passage, and a magnetic lock matched with the protective door is fixed between the two protective guards; a distribution box, a distance sensor and a door opening button are arranged on a protective guard between the protective door and the elevator car, a door access power supply controller is arranged in the distribution box, the detection direction of the distance sensor faces the elevator frame and is used for detecting whether the elevator car reaches a corresponding floor or not, and the door opening button is arranged at a position which is conveniently touched by a human hand; one side of the elevator car facing the safety passage is provided with a car safety door, and a travel switch for detecting the opening and closing state of the car safety door is arranged in the elevator car.

The interlocking device for the construction elevator and the floor protection door comprises a relay, wherein a distribution box is used for supplying power to an entrance guard power supply controller, the two ends of the normally open point output of a distance sensor and the coil of the relay after being connected in series are connected to the power supply output of the entrance guard power supply controller, and the two ends of a door opening button and the normally open point of the relay after being connected in series are connected to the signal input end of the entrance guard power supply controller; the power output of the entrance guard power supply controller is connected with the power supply end of the magnetic lock, and the door closing signal of the magnetic lock is connected with the travel switch in the elevator car in series, so that the on-off of the power supply of the lifting driving device of the elevator car is controlled.

According to the interlocking device of the construction elevator and the floor protection door, the elevator car is provided with the overturning pedal towards the bottom of the doorway of the safety passage, and the overturning pedal is used for being lapped on the outer edge of the floor ground after rotating so as to shield a gap between the elevator car and the floor ground.

According to the interlocking device of the construction elevator and the floor protective door, the door closing signals on the ground of all floors are connected in series and then connected to the signal concentrator, and the signal concentrator is connected into the elevator car through the cable along the row.

According to the construction elevator and floor protection door interlocking device, the wireless beepers are arranged on one sides, facing the building, of the protection doors on all floors.

The invention discloses a control method of an interlocking device of a construction elevator and a floor protective door, which is characterized by comprising the following steps:

a) the protective door is switched in, if the protective door is in a closed state, the door closing signal of the magnetic lock is connected with the travel switch in series in a closed state, and if the protective door is in an open state, the door closing signal of the magnetic lock is connected with the travel switch in series in an open state;

b) the car safety door state is accessed, when the elevator car is in an opening state, the travel switch is connected with the door closing signal of the magnetic lock in series in an opening state, and when the elevator car is in a closing state, the travel switch is connected with the door closing signal of the magnetic lock in series in a closing state;

c) the elevator runs, only when all floor protective doors are in a closed state and a travel switch of an elevator axle is in a closed state, a lifting driving device of an elevator car can be electrified, and the electrified elevator car carries out lifting operation;

d) a person on a certain floor stands outside the protective door to take a call of the elevator, and after receiving the call, a driver of the elevator car stops the elevator car at the floor called by the person;

e) when the distance sensor detects that the elevator car reaches the floor, the distance sensor is connected with a coil of the relay in series in a closed state, and the coil of the relay is electrified; when the elevator car does not reach the floor, the distance sensor is connected with a coil of the relay in series in a closed state, and the coil of the relay is not electrified;

f) the protective door is opened, and the access control power supply controller can electrify the coil of the relay through the distance sensor only when the distance sensor detects that the elevator car reaches the floor; after the relay coil is electrified, a normally-open point of a relay connected with the door opening button in series is closed, after a driver or a worker presses the door opening button, the door control power supply controller detects a closing signal of the door opening button, the power supply to the magnetic lock is disconnected, and the protective door is opened at the moment.

The invention has the beneficial effects that: according to the interlocking device and method for the construction elevator and the floor protective door, the safety door controlled by the magnetic lock is arranged in the safety channel of each floor, and the door closing signals of the magnetic locks on all the floors are connected in series and then connected in series with the travel switch in the elevator car, so that the elevator can run only when the protective doors on all the floors are closed in place and the car safety door of the elevator is also closed in place, a person cannot enter the area between the protective doors and the elevator car in the elevator running process, the falling accident of the person from the floor opening is effectively avoided, and the occurrence of the injury accident of the person in the elevator running process is effectively avoided. Whether reach through setting up the distance sensor who detects elevator car in every floor department, and establish ties distance sensor and relay coil, the normal open point series connection of door opening button and relay has realized only when distance sensor detects elevator car and reaches this floor after, just accessible door opening button opens the guard gate of magnetic lock control, opening of elevator guard gate when effectively having avoided elevator car not reacing this floor, avoided personnel's random entering, further avoided the emergence of personnel from floor opening part crash accident.

Drawings

Fig. 1 is a front view of a construction elevator and floor protection door interlock of the present invention;

fig. 2 is a left side view of the construction hoist and floor protective door interlock of the present invention;

FIG. 3 is an enlarged view of a portion of the construction hoist and floor guard door interlock of the present invention;

fig. 4 is a control schematic diagram of the construction elevator and floor protection door interlock apparatus of the present invention.

In the figure: 1 elevator frame, 2 elevator cars, 3 floor ground, 4 rail guards, 5 escape ways, 6 guard gates, 7 magnetic locks, 8 block terminals, 9 distance sensor, 10 door opening buttons, 11 car emergency exits, 12 travel switch, 13 retinue cable, 14 upset footboards, 15 access control power supply controllers, 16 relays, 17 signal concentrator, 18 wireless beeper.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1, fig. 2 and fig. 3, a front view, a left view and a partial enlarged view of the construction hoist and floor protection door interlocking device of the present invention are respectively given, the construction hoist and floor protection door interlocking device is composed of a hoist frame 1, a hoist car 2, a guard rail 4, a protection door 6, a magnetic lock 7, a distribution box 8, a distance sensor 9, a door opening button 10, a travel switch 12, a traveling cable 13, a door access power controller 15, a relay 16 and a wireless beeper 18, the hoist frame 1 is disposed adjacent to a building, the hoist car 2 is disposed on the hoist frame 1, the number of the hoist cars 2 is 2 in a normal case, the hoist cars are respectively disposed on both sides of the hoist frame 1, and a lifting driving device for driving the hoist car 2 to lift is disposed on the hoist frame 1. The raising and lowering of the elevator car 2 is controlled by the elevator driver to achieve stopping of the elevator car 2 at the floors.

Two parallel protective guards 4 are arranged on the position, corresponding to the elevator car 2, of each floor 3, a safety passage 5 is formed between the two parallel protective guards 4, and constructors can only get in and out of the elevator car 2 through the safety passage 5. The shown protective door 6 is arranged in the safety channel 5 and used for preventing people from entering an area between the protective door 6 and the elevator car 2 when the protective door 6 is not opened, so that when the elevator is not stopped at the floor, the people are in curiosity and the like and look outwards at the outer edge of the safety channel 5 to fall down or be extruded by the running elevator car 2. A magnetic lock 7 matched with the protective door 6 is arranged between the two protective railings 4, the magnetic lock 7 attracts the protective door 6 under the condition of power supply, and the entrance guard power supply controller 15 supplies power to the magnetic lock 7.

The electric distribution box 8, the distance sensor 9 and the door opening button 10 are shown arranged on the protective barrier 4 between the protective door 6 and the elevator car 1, so that the door opening button 10 cannot be pressed at will by persons outside the protective door 6, i.e. with the protective door 6 facing the area inside the building. The detection direction of the distance sensor 9 is directed towards the elevator car 1 for detecting whether the elevator car 2 has reached the corresponding floor. The distribution box 8 is used for supplying power to the entrance guard power controller 15, and the entrance guard power controller 15 is used for supplying power to the magnetic lock 7, the distance sensor 9 and the relay 16. An opening of the elevator car 2 facing the safe passage 5 is provided with a car safety door 11, and the elevator car 2 is provided with a travel switch for detecting an opening/closing state of the car safety door 11.

As shown in fig. 4, a control schematic diagram of the construction elevator and floor protection door interlocking device according to the present invention is shown, and the power supply terminal of the magnetic lock 7 is connected to the power output terminal of the entrance guard power controller 15, so that the entrance guard power controller 15 controls the power on/off state of the magnetic lock 7. When the magnetic lock 7 is powered on and the protective doors 6 are in the attraction state (if two protective doors 6 are provided, the two protective doors are attracted), a door closing signal in the closed state is output, and when the magnetic lock 7 is powered off and the magnetic lock 7 is powered on but the protective doors 6 are not attracted, a disconnected door closing signal is output. After the door closing signals of all floors are connected in series, the door closing signals are connected in series with a travel switch 12 in the elevator car 2 through a signal concentrator 17 and a following cable 13; when the car safety door 11 in the elevator car 2 is in an open state, the travel switch 12 is in an open state, and when the car safety door 11 is in a closed state, the forming switch 12 is in a closed state. It can be seen that only when the protective doors 6 of all floors are closed and the car safety doors 11 are also closed, the lifting driving device of the elevator car 2 can be powered on, and the elevator car 2 can be lifted.

The two ends of the coil of the distance sensor 9 and the coil of the relay 16 which are connected in series are connected with the power output end of the entrance guard power controller 15, and the distance sensor 9 is in a closed state when detecting the elevator car 2 and is in an open state when not detecting the elevator car 2. The door opening button 10 is shown connected in series with the normally open point of the relay 16 to the signal input of the door access power controller 15. In this way, the door-opening button 10 can be pressed to be detected by the access control power supply controller 15 only when the elevator car 2 reaches the corresponding floor, and the protective door 6 can be opened through the door-opening button 10.

The control method of the interlocking device of the construction elevator and the floor protection door is realized by the following steps:

a) the protective door is switched in, if the protective door is in a closed state, the door closing signal of the magnetic lock is connected with the travel switch in series in a closed state, and if the protective door is in an open state, the door closing signal of the magnetic lock is connected with the travel switch in series in an open state;

b) the car safety door state is accessed, when the elevator car is in an opening state, the travel switch is connected with the door closing signal of the magnetic lock in series in an opening state, and when the elevator car is in a closing state, the travel switch is connected with the door closing signal of the magnetic lock in series in a closing state;

c) the elevator runs, only when all floor protective doors are in a closed state and a travel switch of an elevator axle is in a closed state, a lifting driving device of an elevator car can be electrified, and the electrified elevator car carries out lifting operation;

d) a person on a certain floor stands outside the protective door to take a call of the elevator, and after receiving the call, a driver of the elevator car stops the elevator car at the floor called by the person;

e) when the distance sensor detects that the elevator car reaches the floor, the distance sensor is connected with a coil of the relay in series in a closed state, and the coil of the relay is electrified; when the elevator car does not reach the floor, the distance sensor is connected with a coil of the relay in series in a closed state, and the coil of the relay is not electrified;

f) the protective door is opened, and the access control power supply controller can electrify the coil of the relay through the distance sensor only when the distance sensor detects that the elevator car reaches the floor; after the relay coil is electrified, a normally-open point of a relay connected with the door opening button in series is closed, after a driver or a worker presses the door opening button, the door control power supply controller detects a closing signal of the door opening button, the power supply to the magnetic lock is disconnected, and the protective door is opened at the moment.