CN107709215A - Lift appliance - Google Patents

Abstract

It is an object of the present invention to provide an elevator apparatus that has a structure that has few restrictions on equipment layout and aesthetics and does not easily give customers a sense of uneasiness, and that can efficiently ventilate. The elevator apparatus includes a car room (1) and an air pressure control device (2) for controlling the internal air pressure of the car room (1), wherein the air pressure control device (2) has a The blower blower (13) flowing out, the pipeline (10) that is arranged to communicate with the inside of the blower blower (13) and the car room (1), and the shunt chamber that is located at the top of the car room (1) and is connected with the pipeline (10) (8), the side of the split chamber (8) is provided with an opening and a ventilation door (9) which closes the opening normally and opens the door when the power is off.

Description

Elevator device

technical field

The present invention relates to an elevator apparatus provided with an air pressure control device for controlling the internal air pressure of a car compartment.

Background technique

In recent years, along with the increase in the height of buildings, there has been a demand for higher speeds of elevators. In such a high-speed elevator, the change in air pressure per unit time becomes more intense, and the total amount of change in air pressure is large, so passengers may feel a sense of earplugs accompanied by large air pressure fluctuations. In order to reduce this feeling of ear plugging, an air pressure control device has been proposed that controls the air pressure inside the car room based on the air pressure outside the car room.

Here, in order to optimize the change in the internal air pressure of the car room, it is necessary to improve the airtightness of the car room. However, if the airtightness of the car room is improved, the inside of the car room cannot be ventilated in an emergency such as a power failure, and passengers who are locked in the car room will feel a sense of suffocation. In contrast to this, it has been proposed to provide a ventilator for ventilating the car chamber even in the event of a power outage due to the stop of power supply due to an emergency signal when the car chamber has a highly airtight structure.

Japanese Unexamined Patent Application Publication No. 2011-57414 (Patent Document 1) describes an elevator ventilator included in an elevator apparatus provided with an air pressure control device for controlling the air pressure inside a car compartment. This elevator ventilator includes: a ventilation window opening and closing member provided in the car room, which is opened for ventilation when the power is off; The ventilation window opening and closing member that closes by the action of its locking shaft performs locking; the operation switch, which energizes the solenoid for locking when the ventilation window opening and closing member is closed; the elastic member for non-locking, which turns off the power The locking shaft of the locking solenoid is retracted; the elastic member for opening the door applies opening force to the opening and closing member of the ventilation window; and the closing mechanism of the ventilation window closes the opening and closing of the ventilation window when it returns to the normal state Components (refer to the abstract of the specification). The elevator ventilator is provided on the side panel of the car room (refer to paragraphs [0013] and [0032] of the specification of Reference Document 1).

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2011-57414

Contents of the invention

The problem to be solved by the invention

In the elevator apparatus disclosed in Patent Document 1, ventilation windows (ventilation openings) are provided on the side panels of the cage. Many devices are arranged in the hoistway. In addition, a space for raising and lowering the counterweight or a space for arranging the sling is required. It is necessary to prevent interference of various devices, counterweights, and slings with a ventilator opening and closing member (hereinafter referred to as a ventilator) that opens and closes a ventilator. Therefore, restrictions on the equipment arrangement of the hoistway increase. In addition, by providing the ventilation port in the side panel, restrictions on aesthetics also increase.

An object of the present invention is to provide an elevator apparatus with few restrictions on equipment layout and appearance.

means to solve the problem

In order to solve the above-mentioned problems, the elevator apparatus of the present invention includes a car room and an air pressure control device for controlling the internal air pressure of the car room, wherein,

The air pressure control device includes a blower for flowing air in and out of the car room, a duct provided to communicate the blower with the inside of the car room, and an upper portion of the car room. a split chamber for said conduit connection,

An opening is provided on a side surface of the distribution chamber, and a ventilation valve that closes the opening at normal times and opens during a power failure.

Invention effect

According to the elevator apparatus of the present invention, it is possible to provide an elevator apparatus in which there are few restrictions on equipment layout and aesthetics of the hoistway by providing the ventilation door on the ceiling of the car room.

In addition, the subject, structure, and effect other than the above are clarified by description of the following embodiment.

Description of drawings

Fig. 1 is a front view showing a schematic configuration of a car compartment according to an embodiment of the present invention.

Fig. 2 is a perspective view showing a ventilation valve according to an embodiment of the present invention.

Fig. 3 is a front view showing the flow of air in the elevator apparatus according to the embodiment of the present invention.

Fig. 4 is a cross-sectional view showing the flow of air in the elevator apparatus according to the embodiment of the present invention.

Fig. 5 is a configuration diagram showing a schematic configuration of an elevator apparatus according to an embodiment of the present invention.

detailed description

Hereinafter, embodiments of the present invention will be described based on the drawings.

First, an elevator apparatus according to an embodiment of the present invention will be described with reference to FIG. 5 . Fig. 5 is a configuration diagram showing a schematic configuration of an elevator apparatus according to an embodiment of the present invention.

In the elevator hoistway 101 formed inside a super high-rise building, there are a car room 1 for carrying passengers up and down, a counterweight 111, a sling 110 for suspending and connecting the car room 1 and the counterweight 111, and a A hoist 112 that winds around the sheave 102 of the suspension rope 110 and a motor 103 that is connected to the sheave 102 and provides driving force to the sheave 102, an elevator control device 104 that controls the rotation speed of the motor 103, and an air pressure installed in the car room 1 The control device 2, the air pressure sensor 108 that detects the air pressure inside the car room 1, the air pressure control unit 107 that controls the air pressure control device 2 and the air pressure sensor 108, and the stop floor that is arranged on the building for the car room 1 to stop and calls the car Call button 109 for room 1.

Next, the structure of the car compartment will be described with reference to FIG. 1 . Fig. 1 is a front view showing a schematic configuration of a car compartment according to an embodiment of the present invention. In addition, in the elevator apparatus shown in FIG. 1, the structure necessary for description of this invention is described, and description of other structures is abbreviate|omitted.

The elevator apparatus of the present embodiment includes a car chamber 1 on which passengers are placed to ascend and descend, and an air pressure control device 2 that controls the internal air pressure of the car chamber 1 . In super high-rise buildings, there has been a constant demand for higher speeds of elevators. In a high-speed elevator, the change in air pressure per unit time is increased, and the total amount of change in air pressure is large. When a large air pressure fluctuation occurs, the passenger feels a sense of ear plugging. Therefore, in a high-speed elevator apparatus used in a super high-rise, generally, an air pressure control device for controlling the internal air pressure of the car room 1 based on the air pressure outside the car room 1 is provided. However, the present invention does not limit the number of floors of the building and the ascending and descending speed of the car room 1 to specific values, and is applicable to any elevator apparatus provided with the air pressure control device 2 .

The car room 1 has a rectangular parallelepiped shape that is elongated up and down, and is provided with side panels 3 provided in four lateral directions, a floor 4 supporting the side panels 3 at the lower part, a top plate 5 provided on the top of the side panels 3, and a The front side of the car compartment 1 is a door 6 that slides openably and closably.

The car room 1 is provided with a gap that blocks the joint of the side panels 3, a gap between the joint of the side panel 3 and the floor 4, a gap between the joint of the side panel 3 and the roof 5, a closed door 6 and the side panel 3, and The gap between the floors 4 and the seal 7 between the closed doors 6 maintain the airtightness of the inside of the car compartment 1 .

In order to control the internal air pressure of the airtight car chamber 1 , an air pressure control device 2 is provided on the top plate 5 . Hereinafter, the configuration of the air pressure control device 2 will be described.

A rectangular parallelepiped distribution chamber 8 is provided on the top plate 5 . Specifically, the distribution chamber 8 is provided on the space side of the elevator hoistway 101 with respect to the top plate 5 . That is, the shunt chamber 8 is disposed outside the car chamber 1 . An opening 8a and a ventilation door 9 that normally closes the opening 8a and automatically opens the opening 8a in an emergency (power failure) are provided on the side of the flow distribution chamber 8 (see FIG. 2 ). The ventilation valve 9 has an area that satisfies the required ventilation gap. The shunt chamber 8 is a flow path element forming a space (chamber) that changes the flow of air flowing into or out of the car chamber 1 by opening and closing the ventilation valve 9 provided on the side. The side surface of the flow distribution chamber 8 where the ventilation valve 9 is installed is constituted by a surface standing vertically from the top plate.

One end of the duct 10 is connected to the upper surface of the distribution chamber 8 . The duct 10 has a cross-sectional area required for air pressure control, and the upper surface of the distribution chamber 8 has an area that can ensure the cross-sectional area of the duct 10 . The duct 10 is configured to be flexible and changeable in shape. Therefore, the duct connection portion of the duct 10 is constituted by the diversion chamber 8 , and the ventilation valve 9 is provided in the duct connection portion, that is, the diversion chamber 8 .

The other end of the duct 10 is connected to a cuboid chamber 11 provided for noise reduction. One end of a pipe 12 is connected to the chamber 11 , and the other end of the pipe 12 is connected to a blower 13 . The blower 13 is a device for causing air to flow into the car compartment 1 or to cause air to flow out of the car compartment 1 .

When air is flowed into the car chamber 1 , the air blown by the blower 13 enters the chamber 11 through the piping 12 . The air entering the chamber 11 enters the distribution chamber 8 provided above the ceiling 5 of the car chamber 1 through the duct 10 . The air that has entered the shunt chamber 8 enters the inside of the car chamber 1 from an opening (communication hole) 5 a (see FIG. 3 ) provided in the ceiling 5 of the car chamber 1 . When the air is flowed out from the car chamber 1, the above-mentioned inflow route and the flow of the air are in the opposite direction. By the method described above, the internal air pressure of the car room 1 is controlled by adjusting the amount of air entering the car room 1 . It should be noted that, in the state of air pressure control, the power supply is normally performed, and the ventilation valve 9 is in the closed state.

During power failure, the ventilation valve 9 is opened and closed automatically. This opening/closing mechanism can be comprised similarly to the elevator ventilator of the patent document 1 demonstrated in background art. The structure of the ventilation door (the ventilation window opening and closing member of Patent Document 1) 9 will be described with reference to FIG. 2 . Fig. 2 is a perspective view showing a ventilation valve according to an embodiment of the present invention.

Since the ventilation valve 9 is provided on the side surface of the flow distribution chamber 8, the opening and closing direction becomes the horizontal direction. In this case, the axial direction of the rotation shaft of the ventilation valve 9 is arranged along the vertical direction G. As shown in FIG. Therefore, compared with the case where the ventilation valve 9 is provided on the top plate surface and opened and closed in the vertical direction, the operating force during the opening and closing operation can be reduced. Thereby, the opening and closing mechanism of the ventilation valve 9 can be downsized, and the energy consumed by the opening and closing mechanism can be reduced. As a result, the ventilation valve 9 can be efficiently opened and closed.

Even if the rotation shaft of the ventilation valve 9 is in the state where the axial direction is slightly inclined with respect to the vertical direction G, compared with the case where the rotation shaft axis is arranged in the horizontal direction and the ventilation valve is rotated in the vertical direction, it is possible to reduce the Small opening and closing mechanism consumes energy. Therefore, a structure in which the axial direction of the rotation shaft of the ventilation valve 9 is slightly inclined with respect to the vertical direction G is also included in the present invention.

Next, the air pressure control device 2 and the flow of air inside the car compartment 1 will be described with reference to FIG. 3 . Fig. 3 is a front view showing the flow of air in the elevator apparatus according to the embodiment of the present invention. It should be noted that FIG. 3 shows a state in which the ventilation valve 9 is opened.

The blower 13 has a structure in which a gap through which air can flow in and out can be left open even in a state where the operation is stopped. In this case, by setting the blower 13 at a position above the ventilation door 9, the difference in height between the door 9 and the blower 13 is used to generate convection, and the car is driven on the same route as the air pressure control described above. Air in and out of the compartment 1 can be ventilated.

That is, by arranging the blower 13 and the ventilation door 9 at a distance from each other in the vertical direction G, the blower 13 and the ventilation door 9 are arranged so as to have a height difference. By opening the ventilation door 9 , air convection is generated between the blower 13 and the ventilation door 9 . Induced by this convection, the air in the car chamber 1 flows in and out. In addition, the car compartment 1 has a highly airtight structure, but there are small gaps represented by the periphery of the door 6 . By opening the ventilation door 9 , air convection is generated between the opening of the ventilation door 9 and the small gap existing in the car compartment 1 .

Next, the flow of air including the interior of the car chamber 1 will be described. Fig. 4 is a cross-sectional view showing the flow of air in the elevator apparatus according to the embodiment of the present invention.

When the air pressure in the car chamber 1 is controlled, the side panels 3 are deformed according to changes in the air pressure, so that the side panels 3 are composed of an inner panel 14 and an outer panel 15 so as not to disturb passengers. The inner panel 14 is disposed inside the car compartment 1 . The outer panel 15 is disposed outside the car compartment 1 . Then, by providing a gap between the upper and lower portions of the inner panel 14, convection as shown in FIG. 4 can be generated inside the car compartment 1 .

In addition, the air pressure control elevator has a highly airtight structure, and there is a small gap represented by the periphery of the door 6 in addition to the gap of the inner panel 14 . Convection also occurs through the gap between the upper and lower parts of the inner panel 14 or other small gaps. Therefore, it is possible to perform ventilation during a power failure in conjunction with convection caused by the difference in height between the ventilation door 9 and the blower 13 .

According to the elevator apparatus of this embodiment, by providing the ventilating door 9 only on the ceiling of the car room 1, it is possible to reduce constraints on equipment arrangement and aesthetics of the hoistway.

When the ventilation door is provided on the side panel, the ventilation will be performed at a part that is easy for customers to see during a power outage, which will increase the sense of anxiety for customers. However, in the present embodiment, the ventilation door 9 is arranged at a position where the passenger cannot see, so it is possible to reduce the feeling of uneasiness given to the passenger.

In addition, when the elevator ventilation device described in Patent Document 1 is directly arranged on the roof of the car room, the opening and closing direction of the ventilation window opening and closing member (ventilation door) for opening the door becomes the vertical direction, and the opening and closing direction of the ventilation door Closing requires a lot of work force. Therefore, the opening and closing mechanism of the ventilation valve is enlarged, and the energy consumed by the opening and closing mechanism increases.

According to this embodiment, the distribution chamber 8 is provided above the car chamber 1, and the ventilation valve 9 is provided on the side thereof, so that the opening and closing direction of the ventilation valve 9 becomes a horizontal direction. Therefore, the energy required for opening and closing the ventilation valve 9 is reduced, enabling efficient ventilation.

Explanation of reference signs

1: car room; 2: air pressure control device; 3: side panel; 4: floor; 5: roof; 6: door; 7: seal; 8: diversion chamber; 8a: opening of diversion chamber; 9: ventilation Door; 10: pipeline; 11: chamber; 12: piping; 13: blower; 14: inner panel; 15: outer panel; 101: lift access; 102: rope pulley; 103: motor; 104: elevator control device; 107: Air pressure control unit; 108: Air pressure sensor; 109: Call button; 110: Sling; 111: Balance weight; 112: Hoist.

Claims (6)

1. An elevator apparatus comprising a car chamber and an air pressure control device for controlling the internal air pressure of the car chamber, It is characterized in that, The air pressure control device includes a blower for flowing air in and out of the car room, a duct provided to communicate the blower with the inside of the car room, and an upper portion of the car room. a split chamber for said conduit connection, An opening is provided on a side surface of the distribution chamber, and a ventilation valve that closes the opening at normal times and opens during a power failure. 2. Elevator installation according to claim 1, characterized in that, The side surfaces of the distribution chamber are constituted by surfaces standing vertically from the outer side of the roof plate of the car chamber. 3. Elevator installation according to claim 2, characterized in that, The ventilation valve is configured such that the axial direction of its rotation shaft is along the vertical direction, and the ventilation valve is opened along the horizontal direction. 4. Elevator installation according to any one of claims 1 to 3, characterized in that The blower is provided above the ventilation door. 5. Elevator installation according to any one of claims 1 to 3, characterized in that The elevator apparatus includes a plurality of the distribution chambers and the ventilation doors. 6. Elevator installation according to any one of claims 1 to 3, characterized in that The side panels are composed of an inner panel disposed inside the car compartment and an outer panel disposed outside the car compartment, The upper and lower parts of the inner panel are provided with gaps for air convection.