CN111747274B

CN111747274B - Elevator landing door and elevator exhaust method

Info

Publication number: CN111747274B
Application number: CN201911291558.9A
Authority: CN
Inventors: 高世大地
Original assignee: Mitsubishi Electric Building Techno Service Co Ltd
Current assignee: Mitsubishi Electric Building Solutions Corp
Priority date: 2019-03-29
Filing date: 2019-12-16
Publication date: 2022-08-26
Anticipated expiration: 2039-12-16
Also published as: CN111747274A; JP6895130B2; JP2020164291A

Abstract

The invention provides a landing door of an elevator and an exhaust method of the elevator, which can easily exhaust the hoistway. A landing door of an elevator includes a door panel. The door panel is provided to be openable and closable with respect to an entrance of an elevator landing. The door panel has a hole formed by a security window frame or the like. The pipe body is arranged in a hole of the door panel. The hoistway is exhausted through a pipe body attached to a door panel of the landing door. Therefore, the exhaust of the hoistway can be easily performed.

Description

Elevator landing door and elevator exhaust method

Technical Field

The present invention relates to a landing door having a function of exhausting air in a hoistway of an elevator, and an exhaust method.

Background

Patent document 1 discloses an exhaust device for an elevator. According to this exhaust device, smoke and the like inside the hoistway can be discharged to the outside of the hoistway.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2018-95342

Disclosure of Invention

Problems to be solved by the invention

However, in the exhaust device described in patent document 1, an intake device or the like needs to be provided in advance. Therefore, the structure of the elevator becomes complicated.

The present invention has been made to solve the above problems. The invention aims to provide a landing door of an elevator and an exhaust method, which can easily exhaust the air in a hoistway.

Means for solving the problems

The landing door of an elevator of the present invention includes a door panel provided to be openable and closable with respect to an entrance of a landing of the elevator, and having a hole to which a pipe body for exhausting air into a hoistway of the elevator is attached.

The exhaust method of an elevator of the present invention comprises: a security glass removal step of removing security glass from a security window frame of a door panel provided in a landing door of an elevator; a pipe body mounting step of mounting one end portion of a pipe body to the security window frame from a landing side of the elevator after the security glass removing step; and an air blowing step of blowing air toward the inside of one end of the pipe by an air blower inside the hoistway of the elevator after the pipe mounting step.

Effects of the invention

According to these inventions, the exhaust of the hoistway is performed via the pipe body of the door panel attached to the landing door. Therefore, the exhaust of the hoistway can be easily performed.

Drawings

Fig. 1 is a configuration diagram of a hydraulic elevator to which a landing door of an elevator in embodiment 1 is applied.

Fig. 2 is a perspective view of a landing door of an elevator in embodiment 1.

Fig. 3 is a perspective view of an emergency exit of a building provided with landing doors of an elevator in embodiment 1.

Fig. 4 is a perspective view of a landing door of an elevator in embodiment 1.

Fig. 5 is a front view of a landing door of an elevator in embodiment 2.

Fig. 6 is a vertical cross-sectional view of a pipe body support device for a landing door of an elevator according to embodiment 2.

Fig. 7 is a vertical cross-sectional view of a pipe support device for a landing door of an elevator according to embodiment 2.

Fig. 8 is a vertical cross-sectional view of a main portion of a landing door of an elevator in embodiment 2.

Detailed Description

The mode for carrying out the invention is explained in accordance with the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Repeated explanation of this part is appropriately simplified or even omitted.

Embodiment mode 1

In the hydraulic elevator of fig. 1, a hoistway 1 extends through each floor of a building. The machine room 2 is adjacent to the bottom of the hoistway 1. The plurality of landings 3 are provided on each floor of the building. Each of the landings 3 faces the hoistway 1. The landing doors 4 are provided at the entrance of each of the landings 3.

The cylinder 5 is fixed to the bottom of the hoistway 1. The plunger 6 is inserted inside the cylinder 5. The sheave 7 is mounted on the upper end of the plunger 6. The guide rail 8 is fixed to the bottom of the hoistway 1. The car 9 is supported by the guide rails 8. The car door 10 is provided at an entrance of the car 9. The main ropes 11 are wound around the sheave 7. One side of the main rope 11 is fixed to the bottom of the hoistway 1. The other side of the main ropes 11 supports the car 9. The car 9 is supported on both sides by guide rails 8.

The power unit 12 is provided in the machine room 2. The hydraulic pipe 13 connects the plunger 6 and the power unit 12 via a hole formed in a wall surface that separates the hoistway 1 and the machine room 2. The control panel 14 is provided in the machine room 2. The control panel 14 is electrically connected to the power unit 12. The air suction device a is provided on a wall surface of the machine room 2. The air suction device a is provided to be able to suck outside air into the interior of the machine room 2.

The control panel 14 controls the power unit 12. By this control, the power unit 12 adjusts the amount of the hydraulic oil in the cylinder 5 via the hydraulic pipe 13. The plunger 6 ascends and descends according to the amount of the working oil in the cylinder 5. The sheave 7 moves up and down following the up and down movement of the plunger 6. The main ropes 11 move following the up-and-down movement of the sheave 7. The car 9 moves up and down following the movement of the main rope 11. At this time, the car 9 is guided by the guide rail 8.

Next, an exhaust method of the hoistway 1 will be described with reference to fig. 2 and 3.

Fig. 2 is a perspective view of a landing door of an elevator in embodiment 1. Fig. 3 is a perspective view of an emergency exit of a building provided with a landing door of an elevator in embodiment 1.

As shown in fig. 2, the landing door 4 includes a plurality of door panels 4 a. The door panels 4a are provided to be openable and closable with respect to the doorway of the landing 3. The security window frame 4b is formed in any of the door panels 4 a. In a normal state, a security glass, not shown, is attached to the security window frame 4 b.

When the construction of the interior of the hoistway 1 not shown in fig. 2 and 3 is performed, the hoistway 1 is exhausted, for example. For example, when a hydraulic elevator is converted to an elevator using a hoisting machine, smoke generated by welding or the like needs to be discharged to the outside of the hoistway 1.

For example, in the uppermost layer, the security glass, not shown, is detached from the security sash 4 b. Then, one end of the pipe body 15 such as a plastic pipe is attached to the security window frame 4b from the landing 3 side. At this time, a portion other than the pipe body 15 of the hole of the security window frame 4b is temporarily shielded by an unillustrated adhesive tape or the like so that the inside of the hoistway 1 is not exposed from the landing 3 side. Then, the other end of the pipe body 15 is exposed to the outside of the building. Then, inside the hoistway 1, the air blower 16 attached to a temporarily installed step or the like starts blowing air toward the inside of one end portion of the pipe body 15. As a result, the smoke inside the hoistway 1 is discharged to the outside of the hoistway 1.

Next, the landing doors 4 after the completion of the exhaust of the hoistway 1 will be described with reference to fig. 4.

Fig. 4 is a perspective view of a landing door of an elevator in embodiment 1.

At the stage when the construction inside the hoistway 1 is once completed, the air blowing by the air blower 16 not shown in fig. 4 is stopped. Then, a part of the pipe body 15 is detached from the security window frame 4 b. Then, the hole formed by the security window frame 4b is entirely shielded by an adhesive tape or the like.

At the stage when all the construction inside the hoistway 1 is completed, the air blowing by the air blower 16 is stopped. Then, a part of the pipe body 15 is detached from the security window frame 4 b. Then, the security glass is mounted again.

According to embodiment 1 described above, the hoistway is exhausted through the pipe body 15 attached to the door panel 4a of the landing door 4. Therefore, the exhaust of the hoistway 1 can be easily performed. For example, smoke inside the hoistway 1 can be easily discharged when performing welding work inside the hoistway 1. For example, dust inside the hoistway 1 can be easily discharged when performing cleaning work inside the hoistway 1. For example, heat in the hoistway 1 can be easily discharged during construction in summer.

In the configuration of fig. 1, when the hoistway 1 is exhausted, outside air is sucked into the machine room 2 by the air suction device a. The air flows into the hoistway 1 through holes formed in a wall surface that separates the hoistway 1 from the machine room 2. Therefore, the flow of air can be reliably ensured.

Embodiment mode 2

Fig. 5 is a front view of a landing door of an elevator in embodiment 2. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals. The description of this part is omitted.

In embodiment 2, the pipe body support device is temporarily attached to the landing door 4. The tube support device includes a frame 17, a shielding body 18, and a lock body 19.

The frame 17 is detachably attached to the security sash 4 b. For example, the frame 17 is fixed by bolts or the like through a plurality of holes used when fixing the security glass to the security sash 4 b. The frame 17 has a hole. The hole is formed below the frame 17. The shielding body 18 is provided to be movable between a position of blocking the hole and a position of not blocking the hole with respect to the frame body 17. For example, the lock 19 is provided to the shielding body 18. The locking body 19 is provided to be able to maintain the shielding body 18 in a position where the shielding body 18 blocks the hole.

One end of the corrugated tube 15 is attached to a hole of the frame 17.

Next, the tube support device will be described with reference to fig. 6 and 7.

Fig. 6 and 7 are longitudinal sectional views of a pipe body support device for a landing door of an elevator according to embodiment 2.

The frame 17 is formed of rectangular iron, for example. The frame 17 is formed in correspondence with the shape of the security sash 4b not shown in fig. 6 and 7. The shielding body 18 is formed of rectangular iron, for example. The shielding body 18 is provided to be movable in the vertical direction with respect to the housing 17. When the shielding body 18 moves upward, the hole of the frame 17 is exposed. The shielding body 18 shields the hole of the frame body 17 when moving downward. For example, the locking body 19 is a lock. The lock 19 maintains the shutter 18 in the downward moved state.

Next, a method of fixing the blower 16 will be described with reference to fig. 8.

As shown in fig. 8, in the blower 16, the outer diameter on the front side is larger than the outer diameter on the rear side. The outer diameter of the front portion side is larger than the inner diameter of the hole of the frame 17. The outside diameter of the rear portion side is smaller than the inside diameter of the hole of the frame 17.

The rear portion of the blower 16 is inserted into a hole of the frame 17 from the landing 3 side. In this state, the air blowing unit is supported by the housing 17.

According to embodiment 2 described above, the pipe support device is temporarily attached to the security window frame 4b when the construction inside the hoistway 1 is performed. Therefore, the exhaust of the hoistway 1 can be easily performed.

The shielding body 18 blocks the hole of the frame 17. Therefore, at the stage when the construction in the hoistway 1 is once completed, the hoistway 1 can be reliably shielded from the landing 3 side.

The shielding body 18 is provided to be movable between a position where the hole is blocked and a position where the hole is not blocked with respect to the frame body 17. Therefore, pipe 15 can be easily attached to the hole of frame 17.

The shielding body 18 is disposed at a position not to block the hole by moving upward along the frame 17 from the position of blocking the hole. Therefore, tube 15 can be more easily attached to the hole of frame 17.

The locking body 19 also maintains the shielding body 18 at a position where the shielding body 18 blocks the hole. Therefore, mischief by people other than the operator can be suppressed.

The blower 16 is attached to the frame 17. Therefore, the gas can be easily exhausted from the hoistway 1 without requiring a step or the like to be temporarily installed.

The blower 16 may be coupled to the frame 17 inside the hoistway 1. In this case, the gas can be easily exhausted from the hoistway 1 without requiring a step or the like to be temporarily installed.

Further, a gasket may be disposed between the door panel 4a and the frame 17. In this case, smoke and the like in the hoistway 1 can be prevented from leaking to the landing 3 from between the door panel 4a and the frame 17.

Further, an annular elastic body may be attached to the frame hole of the frame 17. In this case, the elastic body deforms in accordance with the outer diameter of the corrugated tube body 15, and the degree of tightness between the tube body 15 and the elastic body improves. Therefore, smoke and the like in the hoistway 1 can be prevented from leaking to the landing 3 from between the hole of the casing 17 and the pipe body 15.

When the door panel 4a does not include the security window frame 4b, the construction door panel 4a including the hole corresponding to the pipe body 15 may be used for a while when constructing the inside of the hoistway 1. In this case, the exhaust of the hoistway 1 can be easily performed.

Description of the reference symbols

1: a hoistway; 2: a machine room; 3: a landing; 4: a landing door; 4 a: a door panel; 4 b: a security window frame; 5: a cylinder; 6: a plunger; 7: a sheave; 8: a guide rail; 9: a car; 10: a car door; 11: a main rope; 12: a power unit; 13: a hydraulic pipe; 14: a control panel; 15: a pipe body; 16: a blower; 17: a frame body; 18: a shielding body; 19: a locking body.

Claims

1. A landing door of an elevator, wherein,

the landing door of the elevator is provided with a door panel which is freely opened and closed relative to an entrance of the landing of the elevator; and

and the security window frame is arranged on the door plate, and a pipe body used for discharging gas in the hoistway of the elevator to the outside of the hoistway is installed in the security window frame.

2. The elevator landing door of claim 1,

the landing door of the elevator further includes a frame that is provided to be detachable from the security window frame and has a hole to which the pipe body is attached.

3. The elevator landing door of claim 2,

the landing door of the elevator further includes a shielding body that shields the hole.

4. The elevator landing door of claim 3,

the shielding body is provided to be movable relative to the housing between a position where the hole is closed and a position where the hole is not closed.

5. The elevator landing door of claim 4,

the shielding body is disposed at a position not to block the hole by moving upward along the frame from a position to block the hole.

6. Landing door of an elevator according to claim 4 or 5,

the landing door of the elevator further includes a lock member for maintaining the shielding member at a position for blocking the hole.

7. Landing door of an elevator according to claim 2 or 3,

the landing door of the elevator further includes a blower to which an end of the pipe body is attached, and the blower is attached to the frame.

8. An exhaust method for an elevator, comprising:

a security glass removal step of removing security glass from a security window frame of a door panel provided in a landing door of an elevator;

a pipe body mounting step of mounting one end portion of a pipe body to the security window frame from a landing side of the elevator after the security glass detaching step; and

and an air blowing step of blowing air toward the inside of one end portion of the pipe by an air blower inside a hoistway of the elevator after the pipe mounting step, and discharging gas inside the hoistway to the outside of the hoistway.

9. The exhaust method of an elevator according to claim 8,

the exhaust method of the elevator comprises a pipe body exposing step of exposing the other end of the pipe body to the outside of a building provided with the elevator.

10. The exhaust method of an elevator according to claim 8 or 9,

the pipe body mounting step includes a step of mounting a frame body having a hole to the security window frame, and thereafter mounting one end portion of the pipe body to the hole.

11. The exhaust method for an elevator according to claim 10, comprising:

a blowing stop step of stopping blowing by the blower after the blowing step;

a pipe body detaching step of detaching one end portion of the pipe body from the security window frame after the air supply stopping step; and

and a hole-shielding step of shielding the hole with a shielding body after the pipe body removing step.