JP2013107756A - Cage inside forced ventilation device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cage inside forced ventilation device of an elevator reduced in cost by exhausting air in a cage to the outside of a hoistway by a simple duct structure.SOLUTION: The cage inside forced ventilation device includes a pair of bases 22a extending in the vertical direction along opposed respective both edges of an opening 21a and rotatably arranged around pins 23, a pair of tongues 22c integrally extended to the inside of a vertical duct 20 from the pair of respective bases 22a and blocking up the opening 21a by abutment, return springs arranged between the pair of bases 22a and an inner wall surface of a vertical duct 20 and energizing so as to abut on the pair of tongues 22c, a pair of operation arms 22b integrally extended to the outside of the vertical duct 20 from the pair of bases 22a and rotating the pair of bases 22a by receiving a force against energizing forces of the return springs, and pressing rollers 17 for lifting while pressing the pair of operation arms 22b by interlocking with the lifting of a car side duct 12.

Description

  The present invention relates to an elevator car indoor forced ventilation device.

  Elevators installed in condominiums, etc. live together with the living environment, and there are people who carry garbage when going to work in the morning, and if you get in immediately after that, the smell of rottenness remains and it may become unpleasant is there.

  Therefore, a conventional elevator in which the air intake and exhaust ports are provided in the car room so as to open to the hoistway, the air in the hoistway is sucked from the air intake by a blower, and the air in the car room is discharged from the air exhaust to the hoistway. A ventilation device for a cage has been proposed (see, for example, Patent Document 1).

  However, in a conventional elevator cab ventilation system, air with a bad odor in the car is discharged into the hoistway, diffuses into the hoistway, is diluted, and is taken in through the inlet. There was a bug that it did not disappear.

  In view of such circumstances, a car side duct attached to the car room, a car room exhaust fan for discharging air in the car room through the car side duct, a first belt wheel installed above the hoistway, A belt that is wound around a second belt wheel installed below the hoistway, and attached to the discharge port side of the car side duct and moves in conjunction with the raising and lowering of the car room, and the first belt wheel and the second belt wheel A storage duct for storing the wrapped belt, an air passageway, an upper duct connecting the upper part of the storage duct and the outside of the hoistway, and a lower duct connecting the lower part of the storage duct and the outer part of the hoistway The conventional elevator car interior ventilator is designed to exhaust air from the car side duct to the storage duct by the car room exhaust fan and to the outside of the hoistway from the upper duct. It had been proposals (for example, see Patent Document 2).

JP-A-49-135351 JP 2010-269856 A

In the conventional elevator car forced ventilation device described in Patent Document 2, the air in the car room is discharged to the outside of the hoistway, so even if a strange odor is generated in the car room, the odor disappears quickly.
However, in the conventional elevator car forced ventilation device described in Patent Document 2, the mechanism for moving the belt attached to the discharge port side of the car side duct in conjunction with the raising and lowering of the car room is large and complicated. There was a problem that the cost of the apparatus was unavoidable.

  The present invention has been made in order to solve the above-described problems, and enables air in a car room to be discharged to the outside of a hoistway with a simple duct structure. The purpose is to obtain.

  An elevator car forced ventilation device according to the present invention has a nozzle serving as a discharge port, the suction side is attached to the car room, and the car side duct that moves up and down in conjunction with the raising and lowering of the car room, A car exhaust fan disposed in a car side duct, for sucking air in the car room from the suction port into the car side duct and exhausting the air from the nozzle, and extending vertically in the hoistway; Fastener mechanism part which is attached to the vertical duct so that the opening into which the nozzle is inserted extends in the vertical direction and closes the opening, and is capable of forming a gap into which the nozzle is inserted Attached to the car side duct, and moved up and down while changing the engagement position of the fastener mechanism portion in conjunction with the raising and lowering of the car side duct, and the gap is raised and lowered in conjunction with the raising and lowering of the car side duct. In A gap forming means formed in the fastener mechanism, an upper duct communicating the upper opening of the vertical duct and the outside of the hoistway, a lower duct communicating the lower opening of the vertical duct and the outside of the hoistway It is equipped with.

  According to the present invention, the fastener mechanism portion configured to be able to form a gap into which the nozzle is inserted is attached to the vertical duct so as to close the opening, and the gap forming means is interlocked with the raising and lowering of the car side duct. The fastener mechanism portion is formed so as to move up and down while changing the engagement position of the fastener mechanism portion, and to move up and down in conjunction with the raising and lowering of the car side duct. This eliminates the need for a large-scale mechanism that moves the belt to which the discharge port side of the car-side duct is attached in conjunction with the raising and lowering of the car room, thereby reducing the price of the car indoor forced ventilation device.

It is sectional drawing which shows typically the structure of the elevator in which the elevator cab indoor forced ventilation apparatus which concerns on Embodiment 1 of this invention was installed. It is II-II arrow sectional drawing of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. It is a principal part perspective view explaining the engagement state of the cage | basket | car side duct and vertical duct in the elevator cab indoor forced ventilation apparatus which concerns on Embodiment 1 of this invention. It is a VV arrow sectional view of Drawing 1. It is VI-VI arrow sectional drawing of FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an elevator car indoor forced ventilation apparatus according to the invention will be described with reference to the drawings.

Embodiment 1 FIG.
1 is a cross-sectional view schematically showing the configuration of an elevator provided with an elevator car forced ventilation device according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 4 is a cross-sectional view taken along the line III-III in FIG. 1, and FIG. 4 is a main part perspective view for explaining the engagement state between the car-side duct and the vertical duct in the elevator car indoor forced ventilation apparatus according to Embodiment 1 of the present invention. 5 is a cross-sectional view taken along the line VV in FIG. 1, and FIG.

  In FIG. 1, a cab 3 is, for example, a guide that is fixed to an end portion of a main rope (not shown) wound around a driving sheave (not shown) and extends vertically in the hoistway 1. It is guided by a rail (not shown) and is arranged so as to be movable up and down. The car room 3 is erected between the car floor 4, the car floor 4, the side wall 5 that isolates the car room 3 from the hoistway 1, the ceiling 6 that closes the upper part of the side wall 5, and the landing 2. And a car door 7 at the entrance where passengers 8 get on and off.

  The car interior forced ventilation device is installed in the ceiling 6, and includes a ceiling fan 11 that sucks air in the hoistway 1 into the car room 3, an exhaust car side duct 12 attached to the side wall 5, and a car side duct 12. A car exhaust fan 15 that is installed and exhausts air in the car room 3, a vertical duct 20 that extends vertically in the hoistway 1, and an upper part that communicates the upper part of the vertical duct 20 and the outside of the hoistway 1. A duct 25, a lower duct 27 communicating the lower part of the vertical duct 20 and the outside of the hoistway 1, an exhaust fan 26 installed in the upper duct 25, an intake fan 28 installed in the lower duct 27, and the like are provided. .

  As shown in FIGS. 2 and 4, the car-side duct 12 is a cylindrical body having a nozzle 12 a extending at one end, and the car-side duct 3 is arranged so that the nozzle 12 a extends into the hoistway 1. It is attached to the side wall 5. A dustproof filter 13 is supported by the protective mesh 14 and is disposed at the suction port of the car-side duct 12. A car room exhaust fan 15 is disposed on the exhaust side of the dust filter 13 in the car side duct 12. Furthermore, the decorative cover 16 is attached to the inner surface of the side wall 5 so as to cover the suction port of the car-side duct 12.

  As shown in FIG. 2 and FIG. 4, the pressing roller 17 as the gap forming means is provided with a nozzle 12 a at each of an upper end and a lower end on the root side of the nozzle 12 a in the car-side duct 12 attached to the car chamber 3. A pair of them are attached so as to be rotatable around a horizontal axis 18 perpendicular to the extending direction of the nozzles 12a.

  As shown in FIGS. 1, 3, and 4, the vertical duct 20 includes a duct 21 having a predetermined length of a substantially cross-sectional rectangle in which an opening 21 a extends in the length direction of one wall surface, and the opening 21 a as a car side duct. In the hoistway 1, the upper and lower sides are connected to the side wall 5 to which 12 is attached. A fastener mechanism portion is attached to the opening 21 a to isolate the inside of the vertical duct 20 from the hoistway 1.

  The fastener mechanism portion includes a plurality of pairs of fastener members 22 and a plurality of return springs 24.

  For example, the fastener member 22 is made of a soft material such as nitrile rubber, fluorine rubber, urethane rubber, or the like, and is formed into a belt-like body having a cross-sectional “f” shape in which the operating arm 22b and the tongue portion 22c extend from the base portion 22a on both sides. Have been made. Then, as shown in FIG. 4, the fastener member 22 extends in the vertical direction along the respective opposite edge portions of the opening 21 a of the duct 21, and the base portion 22 a is inserted in the vertical direction. The tongue 22c is mounted in the duct 21 so as to be opposed to each other so as to be rotatable around the pin 23. Both operating arms 22b extend from the base 22a outside the opening 21a. Both tongue portions 22c are disposed in the duct 21 so as to approach each other as they are separated from the opening 21a. Further, as shown in FIG. 3, the return spring 24 is contracted between the base portion 22 a of each fastener member 22 and the inner wall surface of the duct 21 at a predetermined interval in the vertical direction.

  In this way, the pair of fastener members 22 disposed at the opposite edges of the opening 21a is disposed continuously in the entire vertical direction of the opening 21a. Then, each pair of fastener members 22 is rotated around the pin 23 by the urging force of the return spring 24, the opposing tongue portions 22 c are in contact with each other, and the inside of the duct 21 is isolated from the hoistway 1.

  The tongue portion 22c is formed so as to be thin as it gets away from the base portion 22a, and has flexibility. Further, the base portion 22a and the operating arm 22b are formed thicker than the tongue portion 22c, and can receive the urging force of the return spring 24 and the pressing force of the pressing roller 17 to rotate the fastener member 22 around the pin 23. At the same time, the rigidity is adjusted such that the rotational force around the pin 23 weakens as it moves away from the point of action of the urging force or pressing force in the axial direction of the pin 23.

  Here, as shown in FIG. 2, the vertical duct 20 is disposed at a position where the tip side of the nozzle 12 a of the car-side duct 12 enters the duct 21 from the opening 21 a. The pressing roller 17 is positioned so as to press the operating arms 22b of the pair of fastener members 22 to rotate the fastener members 22 around the pins 23 so as to form a gap in which the nozzle 12a can be inserted between the tongue portions 22c. It is adjusted and attached to the car side duct 12.

  As shown in FIGS. 5 and 6, the upper duct 25 is disposed so as to communicate the upper opening of the vertical duct 20 and the outside of the hoistway 1. The exhaust fan 26 is installed in the upper duct 25, and the protective net 14 is installed on the exhaust side of the exhaust fan 26 in the upper duct 25. Similarly, the lower duct 27 is disposed so as to communicate the lower opening of the vertical duct 20 and the outside of the hoistway 1, the intake fan 28 is installed in the lower duct 27, and the protection net 14 is connected to the lower duct 27. It is installed on the intake side of the internal intake fan 28.

The upper end of the opening 21a and the upper duct 25 are installed at a position higher than the car-side duct 12 when the car room 3 is landed on the uppermost floor, and the lower end and the lower duct 27 of the opening 21a It is installed at a position lower than the car-side duct 12 when landing on the lowest floor.
A pressure ventilation fan is used as a ventilation fan such as the car room exhaust fan 15, the exhaust fan 26, and the intake fan 28.

Next, the operation of the car indoor forced ventilation apparatus configured as described above will be described.
When the pressing roller 17 presses the operating arm 22 b of the pair of fastener members 22, the fastener member 22 is rotated around the pin 23 against the urging force of the return spring 24. Thereby, a pair of fastener member 22 is opened, and a clearance gap is formed between the tongue parts 22c.
Further, when the pressing roller 17 is released from pressing the operating arm 22 b of the pair of fastener members 22, the stored force of the return spring 24 is released and the fastener member 22 is rotated around the pin 23. Thereby, a pair of fastener member 22 is closed, and tongue parts 22c contact | abut.
In this manner, the region pressed against the pressing roller 17 of the pair of fastener members 22 and the region before and after the region are opened.

  The car-side duct 12 moves up and down in conjunction with the raising and lowering of the car room 3. In conjunction with the raising and lowering of the car-side duct 12, the pressing roller 17 moves up and down while pressing the operating arm 22b of the fastener member 22, as shown in FIG. Thereby, the area | region where a pair of fastener member 22 was opened raises / lowers in conjunction with raising / lowering of the cab 3. Therefore, the car-side duct 12 moves up and down in conjunction with the raising and lowering of the car chamber 3 by extending the nozzle 12 a into the vertical duct 20 from the gap between the tongue portions 22 c in the region where the pair of fastener members 22 are opened.

  When the exhaust fan 26 and the intake fan 28 are driven, as indicated by arrows in FIG. 1, the air is sucked into the vertical duct 20 from the lower duct 27, flows upward in the vertical duct 20, and flows outward from the upper duct 25. A flow of exhausted air is formed. When the ceiling fan 11 and the car room exhaust fan 15 are driven, the air in the hoistway 1 is sucked into the car room 3 and the air in the car room 3 is exhausted from the car side duct 12 into the vertical duct 20. Is done. The air in the cab 3 exhausted into the vertical duct 20 rises to the upper part of the vertical duct 20 along the flow of air flowing through the vertical duct 20, and does not leak into the hoistway 1, but from the upper duct 25. Exhausted outside. Therefore, off-flavors such as raw garbage generated from the garbage bag 9 brought by the passenger 8 are exhausted to the outside of the hoistway 1 together with the air in the cab 3. As a result, air with a strange odor in the cab 3 is replaced with the air in the hoistway 1 sucked by the ceiling fan 11, and the odor in the cab 3 is eliminated.

  According to the first embodiment, the vertical duct 20 extends in the vertical direction, and the upper duct 25 and the lower duct 27 are arranged so as to communicate the upper and lower openings of the vertical duct 20 with the outside of the hoistway 1. It is installed. A pair of fastener members 22 are attached to the base 22a so as to be rotatable around a pin 23 extending vertically along the both edges of the opening 21a of the vertical duct 20 and passing through the base 22a in the vertical direction. The return spring 24 is contracted between the base portion 22a and the inner wall surface of the vertical duct 20 so that the tongue portions 22c come into contact with each other. Then, the car-side duct is formed such that the pressing roller 17 presses the operating arms 22b of the pair of fastener members 22 to rotate the pair of fastener members 22 around the pins 23 to form a gap between the tongue portions 22c. 12, the nozzle 12a of the car-side duct 12 extends into the vertical duct 20 from a gap formed between the tongue portions 22c. A car room exhaust fan 15 is disposed in the car-side duct 12.

  As a result, the pressing roller 17 moves up and down in conjunction with the raising and lowering of the car chamber 3, the gap formed between the tongue portions 22c moves up and down, and the nozzle 12a moves up and down while being positioned in the gap, so that the inside of the vertical duct 20 The air in the car room 3 can be prevented from leaking into the hoistway 1, and the air in the car room 3 can be discharged to the outside of the hoistway 1. Therefore, it is possible to prevent a strange odor such as garbage generated from the garbage bag 9 brought in by the passenger 8 from leaking into the hoistway 1 and returning to the cab 3, and the odor in the cab 3 remains forever. Such a situation disappears. Thus, a large-scale mechanism for moving the belt to which the discharge port side of the car-side duct 12 is attached in conjunction with the raising and lowering of the car room 3 is unnecessary, and the car room forced ventilation device that can ventilate the air in the car room 3. Thus, a simple configuration can be realized and the cost can be reduced.

  In addition, since the exhaust fan 26 and the intake fan 28 are disposed in the upper duct 25 and the lower duct 27, an upward air flow from the lower duct 27 to the upper duct 25 is formed in the vertical duct 20. As a result, the air in the cab 3 discharged into the vertical duct 20 is discharged to the outside of the hoistway 1 on the rising airflow of the air in the vertical duct 20 and thus discharged into the vertical duct 20. Leakage of air in the cab 3 into the hoistway 1 is suppressed. Therefore, the air in the car room 3 discharged into the vertical duct 20 is not returned to the car room 3, and the air in the car room 3 is smoothly ventilated.

  Here, if the exhaust capacity of the exhaust fan 26 is made larger than the intake capacity of the intake fan 28, the inside of the vertical duct 20 becomes negative pressure, and the air in the cab 3 discharged into the vertical duct 20 enters the hoistway 1. Leakage is prevented.

In addition, since a pressure ventilation fan is used for the car room exhaust fan 15, the exhaust fan 26, and the intake fan 28, dirty air in the car room 3 can be efficiently discharged to the outside of the hoistway 1. .
In addition, since the dustproof filter 13 is disposed in the car-side duct 12, it is possible to prevent dust and dirt from being discharged outside the hoistway 1.

  In the first embodiment, the exhaust fan 26 and the intake fan 28 are disposed in the upper duct 25 and the lower duct 27. However, the exhaust fan 26 and the intake fan 28 may be omitted, and the exhaust fan 26 may be omitted. One of the intake fan 28 and the intake fan 28 may be omitted. When the exhaust fan 26 and the intake fan 28 are omitted, the air in the cab 3 exhausted into the vertical duct 20 circulates in the vertical duct 20 due to the blowing capacity of the cab exhaust fan 15, and the upper duct 25. Or it is discharged from the lower duct 27 to the outside of the hoistway 1. When one of the exhaust fan 26 and the intake fan 28 is omitted, a flow of air from the lower duct 27 toward the upper duct 25 can be formed in the vertical duct 20, so that the cab exhausted into the vertical duct 20. The air in 3 can be effectively discharged to the outside of the hoistway 1.

  In the first embodiment, the exhaust fan 26 is disposed in the upper duct 25 so that the upper duct 25 functions as an exhaust duct, and the intake fan 28 is disposed in the lower duct 27 so that the lower duct 27 is inhaled. Although the exhaust fan 26 is disposed in the lower duct 27 to function as a duct, the lower duct 27 is functioned as an exhaust duct, and the intake fan 28 is disposed in the upper duct 25 to intake the upper duct 25. It may function as a duct.

In the first embodiment, the ventilation fan is not disposed in the vertical duct 20. However, if it is necessary to compensate for the air flow rate in the vertical duct 20, the ventilation fan is disposed in the vertical duct 20. May be.
In the first embodiment, the pressing roller 17 presses the operating arm 22b to open the fastener member 22 to form a gap between the tongue portions 22c. However, the pressing roller 17 has a base portion 22a of the tongue portion 22c. The fastener member 22 may be opened by pressing the side to form a gap between the tongue portions 22c. In this case, the base 22a is rotated around the pin 23, or the base side of the tongue 22c is elastically deformed to form a gap between the tongues 22c, so that the operating arm can be omitted. Moreover, in the form which elastically deforms the base side of the tongue part 22c, since it can contact between the tongue parts 22c with the restoring force of the tongue part 22c, a return spring can be abbreviate | omitted.

  3 Car Room, 12 Car Side Duct, 12a Nozzle, 15 Car Exhaust Fan, 20 Vertical Duct, 21 Duct, 21a Opening, 22 Fastener Member (Fastener Mechanism), 22a Base, 22b Actuating Arm, 22c Tongue, 23 Pin 24 return spring (fastener mechanism), 25 upper duct, 26 exhaust fan, 27 lower duct, 28 intake fan.

Claims (6)

An elevator car forced ventilation device that ventilates the air in the car room,
A car-side duct having a nozzle serving as a discharge port, the suction port side being attached to the car room, and moving up and down in conjunction with the raising and lowering of the car room;
A cab exhaust fan disposed in the cab-side duct, for sucking air in the cab from the suction port into the cab-side duct and exhausting the air from the nozzle;
A vertical duct extending vertically in the hoistway and having an opening into which the nozzle is inserted extends vertically;
A fastener mechanism portion that is attached to the vertical duct so as to close the opening, and is configured to be able to form a gap into which the nozzle is inserted.
It is attached to the car side duct, and is moved up and down while changing the engagement position of the fastener mechanism portion in conjunction with the raising and lowering of the car side duct, and the gap is moved up and down in conjunction with the raising and lowering of the car side duct. A gap forming means to be formed in the fastener mechanism,
An upper duct communicating with the upper opening of the vertical duct and the outside of the hoistway;
A lower duct communicating the lower opening of the vertical duct and the outside of the hoistway;
Elevator car indoor forced ventilation device with   The fastener mechanism portion extends in a vertical direction along each of opposite edges of the opening, and includes a pair of base portions arranged to be rotatable around a vertical axis, and each of the pair of base portions. A pair of tongues extending inside the vertical duct so as to approach each other as they are integrally separated from the opening, and abut against the opening to close the opening, each of the pair of bases, and an inner wall surface of the vertical duct And a return spring that urges the pair of tongues to abut against each other and a pair of bases that extend integrally from the vertical duct to the outside of the vertical duct. 2. A pair of actuating arms for receiving a force against a force and rotating the pair of bases so as to form the gap between the pair of tongues. Elevator car room forced ventilation system.   The gap forming means is disposed on the upper end side and the lower end side of the nozzle so as to be rotatable around a horizontal axis with the nozzle interposed therebetween, and presses the pair of operating arms in conjunction with the raising and lowering of the car side duct. 3. The elevator car forced ventilation device according to claim 2, wherein the elevator roller is a pressing roller that moves up and down.   A ventilation fan is provided in at least one of the upper duct and the lower duct, and an air flow from the lower duct toward the upper duct or an air flow from the upper duct toward the lower duct is formed in the vertical duct. The elevator car forced ventilation device according to any one of claims 1 to 3.   5. The elevator car forced ventilation device according to claim 4, wherein the ventilation fan is a pressure ventilation fan.   The elevator car forced ventilation device according to any one of claims 1 to 5, wherein a dustproof filter is disposed in the car-side duct.

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