JP2014015282A - Dust removing device and dust removing method for ventilation fan of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust removing device and a dust removing method for a ventilation fan of an elevator, capable of periodically and enough removing dust accumulated on the ventilation fan of the elevator, and improving the environmental sanitary condition in a car.SOLUTION: A dust removing device is provided in an elevator including a ventilation fan 2, and includes: a determination part 72 for determining whether or not the ventilation fan 2 is in a stop state during a predetermined time and also the interior of a car 1 is unmanned; and a control part 73 for controlling the opening and closing operation of a car door 3 and the rotating speed of the ventilation fan 2 according to the determination result of the determination part 72. The control part 73 controls the rotational frequency of the ventilation fan 2 to be operated at a rotating speed larger than a predetermined rotating speed in the open state of the car door 3 when the determination part 72 determines that the ventilation fan 2 is in the stop state and also the interior of the car 1 is unmanned.

Description

  The present invention relates to a dust removing device and a dust removing method for an elevator ventilation fan for removing dust accumulated on the surface of the elevator ventilation fan.

  In a ventilation fan provided on a conventional elevator car, for example, the operation of the ventilation fan is often stopped between autumn and winter. Therefore, dust floating in the hoistway or the like may accumulate on the surface of the ventilation fan. In such a situation, at the time when the ventilation fan is started to operate, after the maintenance staff cleans and removes dust accumulated on the surface of the ventilation fan, the maintenance staff starts to operate the ventilation fan.

  As one of the prior arts related to an elevator equipped with such a ventilation fan, it is possible to remotely control equipment in a car such as a ventilation fan and eliminate the need for work in the elevator installation place. Remote control devices are known (see, for example, Patent Document 1).

  This prior art remote control device for elevator car equipment is mainly used to remotely operate an elevator ventilation fan installed remotely from the maintenance base of an elevator maintenance company via a telephone line. Application of communication technology such as the Internet makes it possible for a customer who owns an elevator or a manager who manages the elevator to remotely operate the ventilation fan of the elevator using the remote control device.

  In addition, when the operation of the elevator ventilation fan is remotely controlled as in the prior art disclosed in Patent Document 1, it accumulates on the surface of the ventilation fan for passengers who joined when the ventilation fan started operating. There is also known a control device for an elevator car ventilation fan that prevents discomfort caused by dust scattering (see, for example, Patent Document 2).

JP 2002-308539 A JP 2005-255371 A

  In the prior art remote control device for elevator car equipment disclosed in Patent Document 1, when the remote operation function of the ventilation fan is provided to the customer or the manager as described above, the remote operation function of the ventilation fan is changed as needed. For example, when a customer or an administrator remotely operates a ventilation fan that has been stopped for a long time to start operation, the ventilation fan is not cleaned by maintenance personnel. The dust accumulated in the air is scattered by the operation of the ventilation fan and fills in the elevator car, which may cause discomfort to passengers who use the elevator.

  In the elevator car ventilation fan control device of the prior art disclosed in Patent Document 2, in order to prevent the above situation, the ventilation fan remote operation function instructs the start of operation of the ventilation fan. In this case, it is confirmed that the elevator has been in a resting state for a predetermined time or more and the operation of the ventilation fan is started. Dust accumulated on the ventilation fan is not sufficiently removed. In addition, when the elevator is at rest, the elevator car door is closed for crime and disaster prevention purposes, so that dust accumulated on the surface of the ventilation fan stays in the car when it is shaken off by operation. In other words, it is not preferable for environmental hygiene in the car.

  The present invention has been made in view of the actual situation of the prior art as described above. The purpose of the present invention is to periodically and sufficiently remove dust accumulated on the ventilation fan of the elevator, and to improve the environmental sanitation in the car. An object of the present invention is to provide a dust removing device and a dust removing method for an elevator ventilation fan.

  In order to achieve the above object, a dust removing device for an elevator ventilation fan according to the present invention includes a car provided in a hoistway, a car door provided in the car so as to be opened and closed, and the car door. A ventilation fan that ventilates and blows air into the passenger car. The ventilation fan is provided in an elevator that rotates at a predetermined rotational speed during normal operation. A determination unit that determines whether the vehicle is in a stopped state and whether or not the inside of the car is unmanned, and controls the opening / closing operation of the car door and the rotation speed of the ventilation fan according to a determination result by the determination unit A control unit that opens the car door when the determination unit determines that the ventilation fan is stopped and the inside of the car is unattended. It is characterized in the rotational speed of the ventilating fan in a state that so as to operate at a greater speed than the predetermined rotational speed.

  The dust removal method for an elevator ventilation fan according to the present invention includes a car provided in a hoistway, a car door provided in the car so as to be openable and closable, and the car. A ventilation fan for ventilating and ventilating the passenger car, and the ventilation fan is provided in an elevator that rotates at a predetermined rotational speed during normal operation, and the ventilation fan is in a stopped state for a predetermined time; and A determination unit that determines whether the inside of the car is unmanned, and a control unit that controls the opening / closing operation of the car door and the rotation speed of the ventilation fan according to the determination result by the determination unit, When the ventilation fan is in a stopped state and the inside of the car is unattended, the control unit opens the car door with the car door open. In the elevator ventilation fan dust removal apparatus used in the elevator ventilation fan dust removal device, wherein the number of rotations of the fan is operated at a rotation speed greater than the predetermined rotation speed, the determination unit includes the predetermined time. A determination procedure for determining whether the ventilation fan is in a stopped state and whether the inside of the car is unattended, and in the determination procedure, the ventilation fan is in a stopped state by the determination unit, and After it is determined that the car is unattended, the control unit opens the car door, and in this state, operates the rotation speed of the ventilation fan at a rotation speed greater than the predetermined rotation speed. It is characterized by having.

  According to the dust removing device and the dust removing method of the elevator ventilation fan of the present invention, the dust accumulated on the elevator ventilation fan can be removed regularly and sufficiently, and the environmental sanitary condition in the car can be improved. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a figure which shows the structure of one Embodiment of the dust removal apparatus of the elevator which concerns on this invention. It is a flowchart explaining operation | movement of this embodiment. It is a figure explaining the relationship between the rotational speed of the ventilation fan with which this embodiment was equipped, and the opening / closing state of the car door, the left figure is a figure at the time of normal operation, and the right figure is a figure at the time of dust removal operation. .

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the dust removal apparatus and dust removal method of the ventilation fan of the elevator which concerns on this invention is demonstrated based on figures.

  One embodiment of a dust removing device for an elevator ventilation fan according to the present invention is provided, for example, in an elevator installed in a building. For example, as shown in FIG. 1, the elevator includes a car 1 provided in a hoistway 20, a car door 3 provided in the car 1 so as to be openable and closable, and a car 1. A ventilation fan 2 for ventilating and ventilating the car 1 is provided.

  The elevator is provided at a landing, for example, and holds and opens and closes in conjunction with the car door 3, and a counterweight (not shown) suspended in the hoistway 20 via the car 1 and the main rope. ), A hoisting machine around which the main rope is wound, and a control panel 6 that is provided in the hoistway 20 and is connected to the car 1 and the ventilation fan 2 via the tail cord 5 to perform communication. . The ventilation fan 2 can be operated, for example, by pressing a manual switch (not shown) provided in the car 1 or by remote operation.

  And the control panel 6 raises / lowers the car 1 according to the rotation direction of the hoisting machine by closing the car door 3 and the hold door 4 and driving the hoisting machine when performing the normal operation. At the same time, the ventilation fan 2 is rotated at a predetermined rotation speed (hereinafter referred to as a normal operation rotation speed for convenience) so that the air in the hoistway 20 is sent into the passenger compartment 1.

  Here, for example, when the ventilation fan 2 is stopped for a long period of time such as autumn and winter when ventilation air conditioning is not required, dust floating in the hoistway 20 may accumulate and adhere on the blades of the ventilation fan 2. . When the customer who owns the elevator or the manager who manages the elevator requests maintenance personnel to start the operation of the ventilation fan 2, the dust is ventilated after the maintenance staff has cleaned the blades of the ventilation fan 2. Since the fan 2 is started to operate, no problem occurs.

  However, when a customer or an administrator starts operation of the ventilation fan 2 by remote control, since the blades of the ventilation fan 2 are not cleaned, dust accumulated on the ventilation fan 2 is peeled off and the hoistway There is a possibility that the car 1 is filled with the air blown from the inside 20 and the elevator user is uncomfortable.

  Therefore, the present embodiment includes a dust operation device 7 that performs a dust removal operation for periodically removing dust accumulated on the ventilation fan 2. The dust operation device 7 is disposed outside, for example, and connected to the control panel 6 so as to perform the dust removal operation by controlling the operation of the control panel 6 as described later.

  For example, the dust operation device 7 includes a determination unit 72 that determines whether the ventilation fan 2 is in a stopped state and the inside of the car 1 is unattended for a predetermined first time, and a determination result by the determination unit 72. And a controller 73 for controlling the opening / closing operation of the car door 3 and the rotational speed of the ventilation fan 2.

  The control unit 73 outputs a door opening signal 9 for opening the car door 3 and the hold door 4 and a ventilation fan starting signal 10 for starting the ventilation fan 2 to the control panel 6. The opening / closing operation of the car door 3 and the hold door 4 and the start-up operation of the ventilation fan 2 are controlled via 6 and the tail cord 5.

  In the present embodiment, the dust operation device 7 includes a time measuring unit 71 that is connected to the determination unit 72 and measures time, for example. The control panel 6 is connected to, for example, the determination unit 72, detects the unmanned unused signal 8 indicating that the car 1 is unmanned and is not used, and the detected unmanned unused signal 8 is determined by the determining unit 72. To output. The unmanned non-use signal 8 is output, for example, by turning off the illumination (not shown) provided in the car 1 when the car 1 is not used and a predetermined first time has elapsed. Signal.

  Further, the determination unit 72 inputs the unmanned non-use signal 8 output from the control panel 6 and refers to the ventilation fan activation signal 10 output from the control unit 73 to the control panel 6. Accordingly, the determination unit 72 confirms whether or not the time measured by the time measuring unit 71 has passed the predetermined first time, and ventilates until the time measured by the time measuring unit 71 has passed the predetermined first time. If the fan activation signal 10 is not output to the control panel 6 and the unmanned unused signal 8 is input from the control panel 6 when the time measured by the time measuring unit 71 has passed the predetermined first time, the ventilation fan 2 is a stop state, and it is determined that the car 1 is unmanned.

  On the other hand, the determination unit 72 outputs the ventilation fan activation signal 10 to the control panel 6 or is measured by the timing unit 71 when the time measured by the timing unit 71 has not passed the predetermined first time. If the unmanned non-use signal 8 is not input from the control panel 6 when the predetermined first time has elapsed, it is determined that the ventilation fan 2 is not in a stopped state or the car 1 is not unmanned. Yes.

  In the present embodiment, the control unit 73 of the dust driving device 7 opens the car door 3 when the determination unit 72 determines that the ventilation fan 2 is stopped and the inside of the car 1 is unattended. The ventilation fan 2 is operated at a rotational speed larger than the normal operation rotational speed (hereinafter referred to as a dust removal operation rotational speed for convenience) in a state where the door is closed. Further, in the present embodiment, the opening time of the car door 3 is set longer than the operation time of the ventilation fan 2. For example, the opening time of the car door 3 is set to be a predetermined time than the operation time of the ventilation fan 2. It is set longer for the second time.

  For example, when the determination unit 72 determines that the ventilation fan 2 is in a stopped state and the inside of the car 1 is unmanned, the control unit 73 performs ventilation in addition to the door opening signal 9 and the ventilation fan activation signal 10. A ventilation fan high-speed rotation signal 11 for rotating the rotation speed of the fan 2 at the above-described dust removal operation rotation speed is output to the control panel 6, and the door opening signal 9 is output from the ventilation fan activation signal 10 and the ventilation fan high-speed rotation signal 11. The output is performed for a predetermined second time longer than the output time.

  The control panel 6 opens the car door 3 and the hold door 4 via the tail cord 5 when the door opening signal 9, the ventilation fan start signal 10, and the ventilation fan high speed rotation signal 11 are input. While making it door, the ventilation fan 2 is rotated at dust removal operation | movement rotational speed.

  In the dust removal device for an elevator ventilation fan according to this embodiment configured as described above, the dust removal operation of the ventilation fan is performed in the following procedure, for example.

  FIG. 2 is a flowchart for explaining the operation of this embodiment.

  In one embodiment of the method for removing dust from the ventilation fan of the elevator according to the present invention, the ventilation fan 2 is in a stopped state and the inside of the car 1 is in a state where the determination unit 72 of the dust operation device 7 is in a predetermined first time. A determination procedure for determining whether or not the vehicle is unmanned, and after the determination unit 72 determines that the ventilation fan 2 is in a stopped state and the inside of the car 1 is unattended in this determination procedure, the control unit 73 The door 3 is opened, and an operating procedure for operating the ventilation fan 2 at the rotational speed of the dust removal operation in this state is provided.

  Specifically, as shown in FIG. 2, the determination unit 72 of the dust removing device 7 first resets the time measuring unit 71 referred to as the standard of the dust removing operation (step (hereinafter referred to as S) 1). At this time, the time measuring means 71 is cleared to zero and starts counting from the beginning.

  Next, the determination unit 72 determines whether the ventilation fan 2 in the car 1 is stopped with reference to the ventilation fan activation signal 10 output from the control unit 73 to the control panel 6 (S2). When determining that the ventilation fan 2 is stopped, the determining unit 72 refers to the time measuring unit 71 to determine whether or not the time measured by the time measuring unit 71 has passed a predetermined first time (S3). ). On the other hand, the determination part 72 returns to operation | movement of procedure S2, when it determines with the ventilation fan 2 not having stopped.

  Next, when it is determined that the time measured by the time measuring unit 71 in the step S3 has passed the predetermined first time, the determination unit 72 confirms whether or not the unmanned unused signal 8 has been input. It is determined whether the car 1 is unattended (S4). On the other hand, the determination part 72 returns to operation | movement of procedure S2, when it determines with the time measured by the time measuring part 71 not having passed predetermined 1st time.

  Next, when it is determined in step S4 that the inside of the car 1 is unmanned, the control unit 73 starts a dust removal operation for performing the dust removal operation of the ventilation fan 2. That is, the control unit 73 outputs the door opening signal 9 to the control panel 6. Then, the control panel 6 inputs the door opening signal 9 to open the car door 3 of the car 1 and the hold door 4 of the hall (S5).

  Next, the control unit 73 outputs the ventilation fan activation signal 10 and the ventilation fan high-speed rotation signal 11 to the control panel 6. When the ventilation fan start signal 10 and the ventilation fan high-speed rotation signal 11 are input, the control panel 6 instructs the ventilation fan 2 to rotate the ventilation fan 2 at a dust removal operation rotational speed larger than the normal operation rotational speed. The ventilation fan 2 rotates at the dust operation rotation speed (S6).

  Here, when a hall call button (not shown) provided at the elevator hall is pressed during the dust removal operation, the control panel 6 lights the car 1 and the car 1 is operated. Start preparation. As a result, the unmanned unused signal 8 is not output from the control panel 6 to the determining unit 72, so the determining unit 72 detects that the unmanned unused signal 8 is not input, that is, the car 1 is called. The control unit 73 stops the rotation of the ventilation fan 2 at the dust removal operation rotation speed by stopping the output of the ventilation fan high-speed rotation signal 11 (S12). Then, the control unit 73 immediately stops the output of the door opening signal 9 to close the car door 3 and the hold door 4 on the control panel 6 (S13), and returns to the operation of step S1. By this operation, the dust removal operation is promptly interrupted, so that the elevator car 1 can be normally operated.

  On the other hand, when the hall call button provided at the elevator hall is not pressed during the dust removal operation, the determination unit 72 refers to the time measured by the timer unit 71 and the ventilation fan 2 performs the dust removal operation. It is determined whether or not the time period rotated at the rotation speed has passed a predetermined time period (S8).

  At this time, if the determination unit 72 determines that the time during which the ventilation fan 2 has rotated at the dust removal operation rotation speed has not passed the predetermined time period, the process returns to the operation of step S7. On the other hand, when the determination unit 72 determines in step S8 that the time during which the ventilation fan 2 has rotated at the dust removal operation rotation speed has passed a predetermined time period, the control unit 73 outputs the output of the ventilation fan high-speed rotation signal 11. By stopping, the control panel 6 stops the ventilation fan 2 from rotating at the rotational speed of dust removal operation (S9), and then waits for a predetermined second time (S10).

  Then, the control unit 73 stops the output of the door opening signal 9 to close the car door 3 and the hold door 4 on the control panel 6 (S11), and returns to the operation of the procedure S1. By this operation, the dust removal operation is completed, and the elevator car 1 can be normally operated.

  Next, the rotation speed of the ventilation fan and the operation of the car door 3 and the hold door 4 in the dust removal operation of the dust removal operation device 7 according to the present embodiment are the same as the rotation speed of the ventilation fan and the car door 3 and the hold door 4 in the normal operation. This will be described in detail in comparison with the operation of No. 4.

  FIG. 3 is a diagram for explaining the relationship between the rotational speed of the ventilation fan provided in the present embodiment and the open / closed state of the car door. The left diagram is for normal operation, and the right diagram is for dust removal. FIG.

  In the present embodiment, when normal operation is performed as shown in the left diagram of FIG. 3, when the hall call button is pressed, the ventilation fan 2 starts rotating at the normal operation rotational speed R1, which is a normal rotational speed. At the same time, the car door 3 and the hold door 4 are opened (T1). Then, when the passenger gets off and the use of the elevator ends and the car door 3 and the hold door 4 are closed (T2), the ventilation fan 2 stops after a while (T3).

  On the other hand, when the dust removal operation is performed as shown in the right diagram of FIG. 3, the ventilation fan 2 starts rotating at a dust removal operation rotation speed R2 (R1 <R2) larger than the normal operation rotation speed R1, and at the same time the car The door 3 and the hold door 4 are opened (T4). And when the time when the ventilation fan 2 is rotated at the dust removal operation rotation speed has passed a predetermined time period, the ventilation fan 2 stops rotating (T5), and the car door 3 and The hold door 4 is closed (T6). With this operation, in this embodiment, the opening time of the car door 3 and the hold door 4 is longer than the operating time of the ventilation fan 2.

  According to the dust removing device and the dust removing method according to the present embodiment configured as described above, even if the ventilation fan 2 is stopped for a long time and dust is accumulated on the surface of the blades of the ventilation fan 2, the procedure S2 is performed. In S4, whenever the determination unit 72 determines that the ventilation fan 2 is in a stopped state and the inside of the car 1 is unmanned for a predetermined first time, the control unit 73 via the control panel 6 The dust on the blades of the ventilation fan 2 can be shaken off by rotating 2 for a predetermined time period at a dust removal operation rotation speed larger than the normal operation rotation speed.

  Further, the rotation of the ventilation fan 2 at the rotational speed of the dust removal operation is performed with the car door 3 and the hold door 4 being opened as shown in step S5. Can be guided to the outside of the car 1 to prevent dust from staying indoors. As described above, according to the present embodiment, dust accumulated on the ventilation fan of the elevator can be removed regularly and sufficiently, and the environmental hygiene state in the car 1 can be improved. Accordingly, it is not necessary to clean the blades of the ventilation fan 2 by maintenance personnel or the like. For example, for customers who have remote control means for the ventilation fan 2, the ventilation fan 2 of the car 1 can be used under comfortable environmental conditions. The operation can be started.

  In this embodiment, the opening time of the car door 3 is set longer than the operation time of the ventilation fan 2 by a predetermined second time. This is because the air in the passenger compartment 1 continues to flow even immediately after the operation of the ventilation fan 2 stops, so that the air flow ends and the dust-containing air is completely discharged out of the passenger compartment 1. The necessary time is secured as a predetermined second time.

  Therefore, even after the operation of the ventilation fan 2 is stopped in step S9, the car door 3 and the hold door 4 are opened for a predetermined second time in step S10. It can be discharged more outdoors. Thereby, the air in the car 1 can be kept clean.

  In addition, this embodiment mentioned above was described in detail in order to demonstrate this invention easily, and is not necessarily limited to what is provided with all the demonstrated structures. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment.

  Moreover, although this embodiment demonstrated the case where the dust operation apparatus 7 was provided in the exterior of the control panel 6, it is not restricted to this case, For example, you may install the dust removal operation apparatus 7 in the control panel 6. The dust removal operation device 7 may be realized in the form of microcomputer software or the like constituting the control panel 6.

DESCRIPTION OF SYMBOLS 1 Car 2 Ventilation fan 3 Car door 4 Hold door 5 Tail code 6 Control panel 7 Dust removal operation device 8 Unattended use signal 9 Door open signal 10 Ventilation fan start signal 11 Ventilation fan high speed rotation signal 71 Timekeeping part 72 Judgment part 73 Control unit

Claims (3)

A car provided in the hoistway, a car door provided in the car so as to be openable and closable, and a ventilation fan provided in the car for ventilating and ventilating the car. The ventilation fan is installed in an elevator that rotates at a predetermined rotational speed during normal operation.
A determination unit for determining whether the ventilation fan is in a stopped state for a predetermined time and whether the inside of the car is unmanned;
According to the determination result by the determination unit, a control unit for controlling the opening / closing operation of the car door and the rotation speed of the ventilation fan,
The control unit is configured to rotate the ventilation fan in a state where the car door is opened when the determination unit determines that the ventilation fan is in a stopped state and the inside of the car is unattended. The dust removing device for an elevator ventilation fan, wherein the number is operated at a rotational speed greater than the predetermined rotational speed. The dust removal device for an elevator ventilation fan according to claim 1,
A dust removal device for an elevator ventilation fan, wherein an opening time of the car door is set longer than an operation time of the ventilation fan. A car provided in the hoistway, a car door provided in the car so as to be openable and closable, and a ventilation fan provided in the car for ventilating and ventilating the car. A ventilation unit is provided in an elevator that rotates at a predetermined rotational speed during normal operation, and a determination unit that determines whether the ventilation fan is in a stopped state for a predetermined time and whether the inside of the car is unattended A control unit for controlling the opening / closing operation of the car door and the rotation speed of the ventilation fan according to a determination result by the determination unit, and the control unit is configured so that the ventilation fan is stopped by the determination unit. And when it is determined that the inside of the car is unattended, the rotational speed of the ventilation fan is increased at a rotational speed greater than the predetermined rotational speed with the car door opened. In the dust removing method of the ventilation fan of the elevator used in the dust removing device of the ventilation fans elevator so as to,
A determination procedure for determining whether the ventilation fan is in a stopped state and the inside of the car is unattended during the predetermined time by the determination unit;
In this determination procedure, after the determination unit determines that the ventilation fan is in a stopped state and the inside of the car is unattended, the control unit opens the car door, and in this state the ventilation An operation procedure for operating the fan at a rotational speed greater than the predetermined rotational speed, and a dust removing method for an elevator ventilation fan.

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