CN103201207B - Cage door sealing device and elevator device - Google Patents

Abstract

The present invention provides a car door airtight device and elevator equipment capable of improving the airtightness of a sealing member closing a gap between an elevator car and a car door. The car door airtight device of the present invention is characterized in that it has: an airtight mechanism main body (9), which can rotate around a rotating shaft (10) approximately parallel to the inner surface of the car door; an airtight member ( 12); a force applying mechanism (11), which applies force to the airtight mechanism main body (9) in the direction in which the airtight member (12) leaves the car door (1); engaging rollers (8); and Inclined cam (7), which engages with the engaging roller (8) when the car door (1) is closed, and when the engaging roller (8) engages with the inclined cam (7), the main body of the airtight mechanism (9) Make the airtight member (12) contact with the car door (1), the airtight member (12) is arranged on the lower position than the rotating shaft (10) of the airtight mechanism main body (9), and the airtight mechanism main body ( 9) Make the rotation direction of the airtight member (12) in contact with the car door (1) and the pressure in the elevator car rise to higher than the pressure outside the elevator car by the air pressure in the car to the airtight member (12). ) are pressed in the same direction.

Description

Car door airtight device and elevator equipment

technical field

The invention relates to an elevator car door airtight device for controlling the air pressure in the elevator car.

Background technique

In recent years, along with the increase in the height of buildings, the increase in speed of elevators has been demanded. In the above-mentioned high-speed elevators, not only the air pressure per unit time changes drastically, but also the total air pressure change is large, so passengers often feel earplugs due to large air pressure changes.

In order to alleviate the feeling of earplugs of passengers, it has been proposed to have an air pressure control device that controls the air pressure in the car room based on the air pressure outside the car room. Here, in order to control the air pressure in the car room to an optimum state, it is necessary to improve the airtightness of the car room.

As a technique for improving the airtightness by closing the car door and the gap, for example, the technique of Patent Document 1 is conventionally known. In Patent Document 1, a method is proposed, that is, when the car door is opened and closed, the roller on the leaf spring provided at the lower end of the sealing member for closing the gap between the elevator car and the elevator door is slid, After the roller falls into the concave step provided on the sliding surface of the roller, the sealing member provided at the front end of the leaf spring contacts the top frame. On the other hand, the sealing member does not come into contact with the top frame after the roller comes out of the concave step.

Moreover, as a technique aimed at improving the smoke resistance and sound insulation of a car door, the technique of patent document 2 is known, for example. Patent Document 2 proposes a method in which when the car door is in a closed state, the movable shield engages with an engaging fitting provided on the side of the car door, thereby improving the smoke resistance in the car interior. and sound insulation.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2004-338851 (paragraph numbers 0010 to 0017, FIG. 1 )

Patent Document 2: Japanese Unexamined Patent Application Publication No. 2005-15137 (paragraph numbers 0007 to 0016, FIG. 1 )

Summary of the invention

The problem to be solved by the invention

However, in the technologies disclosed in Patent Document 1 and Patent Document 2, smoke resistance and sound insulation are considered by closing the gap between the landing door and the landing door, but since the landing door is located between the hoistway and the car hall During the period, there are very few large air pressure changes between the hoistway and the car lobby across the landing door, so it cannot be said that sufficient consideration has been given to the change in air pressure.

That is, in the elevator with the air pressure control device, there is an air pressure difference between the inside and outside of the elevator car. In the prior art, when the air pressure in the elevator car rises, it is affected by the air pressure difference, causing The force in the direction of separating the elevator door from the elevator car may increase the gap between the elevator door and the elevator car due to the influence of this force, resulting in a decrease in sealing performance. In addition, due to the influence of the air pressure difference inside and outside the elevator car, there is a force intended to push the sealing member back, that is, a force in a direction to widen the gap between the sealing member and the car door in contact with the sealing member. The sealing member itself is pushed back by this force, so that the sealing performance may not be guaranteed.

In addition, the doors of elevator equipment are usually composed of multiple doors. In each door, the movement track of the door is limited by the suspension member guide rail set on the upper part of the door and the threshold set on the lower part of the door. In order to make the elevator door smoothly Opening and closing are performed, and a margin is set in the trajectory limiting direction perpendicular to the opening and closing direction. Therefore, for example, in an elevator device composed of two doors, when the elevator doors are closed, one door may be deflected to the outside of the elevator car, while the other side of the car door may be deflected to the inside of the elevator car. The respective door planes of multiple doors do not necessarily remain on the same plane. In addition, even if there is only one door leaf, it may happen that the rear end side is shifted toward the outside of the elevator car and the front end is shifted toward the inside of the elevator car.

That is to say, in an elevator system composed of a plurality of doors, there may be a step difference between the doors that should be airtight, so it is difficult to cope with the step difference with a single sealing member, and it may not be possible to maintain the elevator car. sealing performance. Likewise, even if there is only one door leaf, there will be deflection, and it may not be possible to maintain the sealing performance of the elevator car.

Therefore, it is necessary to develop an airtight device that can maintain the airtightness of the elevator car, so that there is an air pressure difference between the inside and outside of the elevator car door that controls the air pressure in the car room, and the force is created by the air pressure difference. When acting on the car door or airtight components, or when there is a step difference in the car door, the airtightness of the elevator car can also be maintained.

Contents of the invention

The present invention has been accomplished in view of the above-mentioned actual situation. The purpose of the present invention is to provide a car door airtight device and elevator equipment, so that the performance of the airtight member used to close the gap between the elevator car and the car door can be improved. tightness.

solution

In order to achieve the above object, the present invention provides a car door airtight device for sealing the car door and the car door of the elevator car of the car air pressure control type elevator equipment that controls the air pressure in the elevator car. The gap between elevator cars, the car door airtight device is characterized in that the car door airtight device has: an airtight mechanism body, the airtight mechanism body can be substantially parallel to the car The inner surface of the door rotates around the axis of rotation; the airtight member, which is arranged on the main body of the airtight mechanism, closes the car door and the elevator by contacting the car door. The gap between the cars is thus kept airtight; the force applying mechanism is centered on the rotating shaft to provide airtightness to the airtight member in the direction in which the airtight member leaves the car door. The main body of the mechanism exerts force; the rod extends in a direction perpendicular to the rotation axis; the engaging roller is arranged at a predetermined distance from the rotation axis of the rod position; and an inclined cam, the inclined cam is arranged on the car door, and engages with the engaging roller when the car door is closed, and when the engaging roller engages with the inclined cam When the main body of the airtight mechanism rotates around the rotating shaft to make the airtight member contact the car door, the airtight member is arranged In the lower position of the shaft, the main body of the airtight mechanism makes the rotation direction of the airtight member contact with the car door and the pressure inside the elevator car rise higher than that outside the elevator car. The direction in which the airtight member is pressed under the action of the air pressure in the car is the same direction.

In addition, the present invention provides a car door airtight device for sealing the car door and the elevator car of the elevator car of the car air pressure control type elevator equipment that controls the air pressure in the elevator car. The gap between the cars, the car door airtight device is characterized in that the car door airtight device has: an airtight mechanism body, the airtight mechanism body can be roughly parallel to the car door The rotating shaft on the inner surface rotates as the center; the airtight member, the airtight member is arranged on the main body of the airtight mechanism, and closes the car door and the elevator car by contacting the car door The gap between them is kept airtight; the force applying mechanism is centered on the rotating shaft and acts on the main body of the airtight mechanism in the direction in which the airtight member leaves the car door applying force; a lever extending in a direction perpendicular to the axis of rotation; an inclined cam disposed at a position spaced a prescribed distance from the axis of rotation of the lever; and engaging rollers, the engaging rollers are arranged on the car door, and engage with the inclined cam when the car door is closed; when the engaging rollers engage with the inclined cam, the The main body of the airtight mechanism rotates around the rotating shaft to make the airtight member contact the car door, and the airtight member is arranged on the main body of the airtight mechanism closer to the rotating shaft. In the lower position, the rotation direction of the airtight mechanism main body when the airtight member is in contact with the car door is the same as when the pressure inside the elevator car rises higher than the pressure outside the elevator car The direction in which the airtight member is pressed under the action of air pressure in the car is the same direction.

Invention effect

According to the present invention, it is possible to provide a car door airtight device and elevator equipment capable of improving the airtightness of a sealing member for closing a gap between an elevator car and a car door.

Description of drawings

Fig. 1 is a perspective view showing an elevator car according to a first embodiment of the present invention.

Fig. 2 is a front view showing the elevator car according to the first embodiment of the present invention.

Fig. 3 is a side sectional view showing the A-A section of Fig. 2 .

Fig. 4 is a plan sectional view showing the B-B section of Fig. 3 .

Fig. 5 is a side sectional view showing the A-A section in Fig. 2 according to the second embodiment of the present invention.

Fig. 6 is a plan sectional view showing a section C-C in Fig. 5 .

Fig. 7 is a side sectional view showing the general outline of the elevator equipment of the present invention.

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Example 1

Fig. 7 is a side sectional view showing the general outline of the elevator equipment of the present invention. Elevator equipment 22 shown in Fig. 7 has elevator car 16 and counterweight 24 that ascend and descend in hoistway 23, is used to suspend elevator car 16 and main sling 25 of counterweight 24, has 25 coils for main sling The hoisting machine of the sheave 26 that winds, and deflection pulley 27. In this embodiment, the winch and the deflection pulley 27 are arranged in the machine room 28 located at the upper part of the lifting passage 23 . In the elevator apparatus 22 having the above structure, the main rope 25 is driven by rotating the sheave 26 of the hoisting machine, so that the elevator car 16 and the counterweight 24 are raised and lowered in directions opposite to each other in the hoistway 23 .

It should be noted that only the lowermost floor 29 and the uppermost floor 30 are schematically shown in FIG. 7 , but the present invention can also be applied to buildings with two or more floors. Furthermore, hall doors 31 are provided on each floor. The hall door 31 faces the car door 1 provided on the elevator car 16 when the elevator car 16 stops, and opens and closes together with the car door 1 .

Fig. 1 is a perspective view showing an elevator car according to a first embodiment of the present invention. The elevator car 16 shown in Figure 1 has a car door 1 and a blower 20 as an air pressure control device. The air pressure in the cabin of the elevator car 16 .

The elevator car 16 is a long rectangular parallelepiped in the vertical direction, and has side panels 17 arranged in four directions on the side, a floor 18 supporting the side panels 17 at the bottom, and a top plate 19 arranged on the top of the side panels 17. A car doorway 2 is provided on a front side panel 17 of the elevator car 16 , and the car doorway 2 is opened and closed by the car door 1 .

The elevator car 16 is airtightly maintained by the side panel 17, the floor 18, the roof 19, the car door 1, and the car door airtight device 21, etc. Wherein, the car door airtight device 21 is used to close the gap between the car door 1 and the front side panel 17 when the car door 1 is in a closed state.

In order to control the air pressure in the car room of the airtight elevator car 16, the air blower 20 for sending the air outside the elevator car 16 to the inside of the elevator car 16 is provided on the top plate 19. 20 to adjust the amount of air sent into the interior of the elevator car 16, whereby the air pressure inside the elevator car 16 can be controlled.

Fig. 2 is a front view showing the elevator car according to the first embodiment of the present invention. As shown in Figure 2, the elevator car 16 has on its front side: a rectangular car entrance 2 that overlaps with the side panel 17 and the car door 1; a suspension member 15 fixed on the top of the car door 1 a plurality of rollers 5 rotatably arranged on the suspension 15; a suspension guide rail 6 that is fixed on the upper side of the side panel 17 on the front side of the elevator car 16 in a manner extending in the left and right direction and slides for the rollers 5 ; a door machine 3 for opening and closing the car door 1; a drive belt 4 for transmitting the driving force of the door machine 3 to the roller 5 and the car door 1 capable of opening and closing in the left and right direction.

Fig. 3 is a side view showing a section A-A of Fig. 2 . The upper part of the car doorway 2 is a top frame body 14 made of side panels 17 . The airtight mechanism main body 9 is provided on the top frame 14 so as to be rotatable about a rotating shaft 10 that is an axis parallel to the inner surface of the car door 1 . On the side of the airtight mechanism main body 9 near the car door 1 and below the rotating shaft 10 is provided an airtight member 12 with a soft front end for closing the gap between the car door 1 and the elevator car 16 . In addition, an airtight state is maintained between the airtight mechanism main body 9 and the top frame body 14 by members not shown, and air leakage from between the airtight mechanism body 9 and the top frame body 14 is prevented.

A straightening plate 13b is attached to the side of the airtight mechanism main body 9 close to the car door 1 and above the rotating shaft 10 . In addition, the height of the car door 1 is slightly lower than that of the rectifying plate 13b, and the rectifying plate 13a is attached. The rectifying plate 13a and the rectifying plate 13b are installed in such a relationship that the air leaked from the airtight member 12 due to the pressure increase in the elevator car 16 is blocked by the rectifying plate 13a installed on the car door 1 and the flow direction is changed. And flow toward the direction of the rectifying plate 13b, the rectifying plate 13b under the effect of the airflow gives the main body 9 of the airtight mechanism to make the main body 9 of the airtight mechanism come into pressure contact with the airtight member 12 and the car door 1 with the rotating shaft 10 as the center. The force of rotation in the direction of .

A torsion spring 11 is provided between the airtight mechanism main body 9 and the rotating shaft 10, and the torsion spring 11 constitutes a force applying mechanism for applying force to the airtight mechanism main body 9 in the direction that the airtight member 12 leaves the car door 1 at ordinary times. .

The main body 9 of the airtight mechanism is provided with a rod 32 and an engaging roller. The rod 32 extends in a direction perpendicular to the rotation axis 10 . distance position. In addition, an inclined cam 7 engaged with an engaging roller 8 is provided on the car door 1 .

Thus, the car door airtight device 21 in this embodiment has the airtight mechanism main body 9 , the airtight member 12 , the torsion spring 11 as a urging member, the lever 32 , the engagement roller 8 , and the inclined cam 7 .

Fig. 4 is a plan sectional view showing the B-B section of Fig. 3 . The lengths of the airtight mechanism main body 9 and the airtight member 12 in this embodiment are set to be substantially the same as the length in the width direction of the car door 1 . In addition, a plurality of inclined cams 7 and engaging rollers 8 fixed to the car door 1 are provided. In this embodiment, an inclined cam 7a is provided at the end of the car door 1 in the opening direction, and an inclined cam 7b is provided at the end of the car door 1 in the closing direction. In addition, an engaging roller 8a and an engaging roller 8b are also provided, and the above-mentioned engaging roller 8a and engaging roller 8b are arranged so that when the car door 1 is about to be completely closed, they are connected with each inclined cam 7 in the plurality of inclined cams 7 respectively. Abut.

The power of the door machine 3 is transmitted to the roller 5 through the transmission belt 4, so that the suspension 15 moves on the suspension guide 6 along the direction of closing the door. With the movement of the suspension 15, the car door 1 is in a closed state. The inclined cam 7a and the inclined cam 7b mounted on the car door 1 are respectively engaged with the engaging roller 8a and the engaging roller 8b, and the engaging roller 8 is pressed in a direction away from the car door 1 around the rotating shaft 10. .

The engagement roller 8 is pressed by the inclined cam 7 , and the airtight mechanism main body 9 rotates around the rotation shaft 10 in a direction to press the airtight member 12 against the car door 1 . The airtight member 12 installed on the main body 9 of the airtight mechanism approaches the car door 1 as the inclined cam 7 presses the engagement roller 8, and when the car door 1 is completely closed, the rotation angle of the main body of the airtight mechanism reaches the maximum value. At this time, the front end of the airtight member 12 is in contact with the car door 1 and the front end is bent. Thereby, the gap between the car door 1 and the side panel 17 can be sealed by the airtight member 12 .

But when the car door 1 was made of more than two multi-leaf doors, although the movement track of the car door 1 was affected by the suspension member guide rail 6 arranged at the top of the car door and the door sill arranged at the bottom of the car door Limit, but in order to make the opening and closing action go smoothly, a margin is set on the trajectory limit in the direction perpendicular to the opening and closing direction. Therefore, one of the left and right ends of the car door 1 of the elevator is located at one of the outermost and innermost sides of the elevator car 16, and the other end is located at the innermost and innermost side of the elevator car 16. The position of the other side in Outer. In the above case, since it is not closed parallel to the top frame 14, for example, if the distance between the inclined cam 7a and the top frame 14 is greater than the distance between the inclined cam 7b and the top frame 14, there may be a As a result, the engagement depth between the inclined cam 7a and the engagement roller 8a becomes shallow.

On the other hand, since the amount of engagement between the inclined cam 7b and the engaging roller 8b is greater than the usual amount of engagement, the rotation angle of the airtight mechanism main body 9 is larger than the usual rotation angle, and the airtight member 12 and the car door 1 The amount of exposure is greater than usual. According to this configuration, it is possible to block the gap between the car door 1 and the roof frame 14 that becomes larger on the tilt cam 7a side.

In addition, in this embodiment, each car door 1 is equipped with a car door airtight device, so for example, when multiple car doors 1 are closed, there is an inclination, which causes the gap between the respective butt joints of the end faces of the car doors. Even when there is a step difference between the car doors 1 and the roof frame 14, the airtight member 12 can be used to close the gap between the car door 1 and the top frame body 14, thereby enabling more reliable sealing.

When the car door 1 is in the closed state, the elevator car 16 is in a state capable of being raised and lowered. Air is introduced into the interior of the elevator car 16 by operating the blower 20 . Then, since the gap between the car door 1 and the side panel is closed by the airtight member 12, the air pressure on the side of the airtight member 12 near the elevator car is greater than the air pressure on the side of the airtight member 12 near the car door, According to this air pressure difference, the airtight member 12 having a soft front end is further bent, whereby the gap between the elevator car and the car door 1 can be completely eliminated.

The airtight member 12 is provided below the rotating shaft 10 of the airtight mechanism main body 9, and the airtight mechanism main body 9 makes the rotation direction when the airtight member 12 contacts the car door 1 and the pressure inside the elevator car. The direction in which the airtight member 12 is pressed by the air pressure inside the car when the pressure is higher than the pressure outside the elevator car is the same direction, whereby the airtightness can be more reliably maintained.

In addition, as in the case of the deformation of the airtight member 12 caused by the air pressure difference, the air pressure inside the car door 1 is greater than the air pressure outside the car door 1, and the car door 1 tends to be pushed outward. 1 and the top frame changes, and the gap between the car door 1 and the airtight member 12 becomes larger, thus the air introduced into the elevator car 16 from the blower 20 may flow from the car door 1 to the air Leakage in the gap between the tight members 12.

However, since the lever 32 that rotates the airtight mechanism main body 9 is provided to extend in a direction perpendicular to the rotation shaft 10, and the engagement roller 8 is provided at a position separated from the rotation shaft 10 by a predetermined distance, The principle of leverage can be used to further increase the amount of rotation of the airtight mechanism main body 9 so that the airtight member 12 is in closer contact with the car door 1 , thereby making it difficult to generate a gap by utilizing the deformation of the airtight member 12 .

In addition, even if air leaks from the gap between the car door 1 and the airtight member 12, the leaked air will flow toward the front of the rectification plate 13b through the rectification plate 13a, and the airtight mechanism will be closed under the action of the wind pressure. The main body 9 tends to rotate clockwise in FIG. 3 around the rotation axis, and the gap between the car door 1 and the airtight member 12 is narrowed.

The power of the door machine 3 is transmitted to the roller 5 via the transmission belt 4, so that the suspension 15 moves on the suspension guide rail 6 along the door opening direction. With the movement of the suspension 15, the car door 1 is in an open state. The engagement between the inclined cam 7 and the engagement roller 8 is released, and the main body of the airtight mechanism 9 rotates counterclockwise as shown in FIG. The direction of compartment door 1 is rotated. Thereby, the airtight member 12 is separated from the car door 1, and even if the car door slides, the airtight member 12 does not come into contact with the car door 1, so that the airtight member 12 can be prevented from being worn out.

According to the above structure, by providing a plurality of engaging rollers 8 and inclined cams 7, it is possible to overcome the phenomenon of gaps caused by the inclination of the car door, thereby maintaining the airtightness of the elevator car. Since the car door airtight device is installed on each car door, even if there is a step difference between the butt joint surfaces of the car door due to the inclination of the car door, the gap can be avoided, so that the elevator can be maintained. The airtightness of the car.

In addition, when the air pressure inside the elevator car requiring airtightness is controlled by utilizing the air pressure difference inside and outside the elevator car, the sealing member is automatically deformed, so that the airtightness of the elevator car can be maintained.

In addition, when the gap between the car door and the airtight member once becomes large, the gap can be narrowed by the pair of rectifying plates.

Therefore, the airtight device proposed by the present invention is an active airtight device, which can automatically eliminate the gap between the car door and the side panel, thereby maintaining the airtightness of the elevator car.

It should be noted that, in this embodiment, the inclined cam 7 is provided on the side of the car door, and the engaging roller 8 is provided on the main body 9 of the airtight mechanism. Coupling roller 8, and the structure that inclined cam 7 is set on airtight mechanism main body 9.

It should be noted that the rotation axis 10 is substantially parallel to the inner surface of the car door 1, which means that it is substantially parallel to the normal car door without inclination and deformation, and refers to the state when the car door is inclined and deformed. A range in which the airtight member 12 can be kept in close contact with the car door 1 .

Example 2

Hereinafter, a second embodiment will be described with reference to the drawings. Since this embodiment has the same structure as that of FIGS. 1 , 2 and 7 in the first embodiment, description thereof will be omitted. In addition, the same code|symbol is attached|subjected to the part demonstrated in 1st Embodiment, and the description is abbreviate|omitted.

Fig. 5 is a side sectional view showing the A-A section of Fig. 2 according to the second embodiment of the present invention. The car door airtight device 21 shown in Figure 5 has: the airtight mechanism main body 9, which is arranged on the top frame body 14 formed by the side panel 17 at the top of the car entrance and exit 2; Parallel rotating shaft 10; The air-tight mechanism main body 9 that can rotate around the rotating shaft 10; The air-tight member 12 with soft front end is installed on the rotating shaft near the car door 1 side of the air-tight mechanism main body 9. The lower side of the rectifying plate 13b, which is installed on the upper side of the rotating shaft at the position on the side of the car door 1 of the airtight mechanism main body 9; it is arranged at a position where the height of the car door 1 is slightly lower than the rectifying plate 13b The rectifying plate 13a; the torsion spring 11 provided between the airtight mechanism main body 9 and the rotating shaft 10; and the inclined cam 37 and the engagement roller 38.

Fig. 6 is a plan sectional view showing a section C-C in Fig. 5 . In this embodiment, the engagement roller 38 and the airtight member 12 are provided on the same side with respect to the rotation axis 10 of the airtight mechanism main body 9 . In addition, in this embodiment, the engaging roller 38 is provided at a position farther from the rotation shaft 10 than the installation position of the airtight member 12 provided on the airtight mechanism main body 9 .

Moreover, in this embodiment, the inclined cam 37 is supported by the rod-shaped member 39 of the car door 1, and protrudes further toward the inside of the elevator car 16 than the engagement roller 38, and the inclined cam 37 is formed from the angle of the elevator car 16. The inner side is configured to be engaged with the engaging roller.

According to the above structure, when the air pressure inside the car door 1 is greater than the air pressure outside the car door 1, and the car door 1 tends to be pushed out toward the outside, since the inclined cam 37 is arranged on the elevator side relative to the engagement roller 38 The inner side of the car 16, so when the car door 1 is pushed out toward the outside, the inclined cam 37 is also pulled toward the outside, and the engaging roller 38 is pushed out toward the outside, so that there is a gap between the car door 1 and the airtight member 12. The gap will not increase.

Moreover, since the lever 32 that rotates the airtight mechanism main body 9 extends in a direction perpendicular to the rotation shaft 10 and is provided at a position farther from the rotation shaft 10 than the installation position of the airtight member 12, the principle of leverage can be utilized. , further increasing the rotation amount of the airtight mechanism main body 9 so that the airtight member 12 is brought into closer contact with the car door 1 , whereby the deformation of the airtight member 12 can be used to make it difficult to generate a gap.

It should be noted that, in this embodiment, although the inclined cam 37 is provided on the side of the car door, and the engagement roller 38 is provided on the main body 9 of the airtight mechanism, it may also be provided on the side of the car door. The roller 38 is engaged and the inclined cam 37 is provided on the main body 9 of the airtight mechanism.

As described above, according to the structure of the second embodiment of the present invention, better airtightness can be obtained than that of the first embodiment.

It should be noted that although the above-mentioned first embodiment and second embodiment have been described by taking the case of closing the gap between the car door 1 and the top frame body 14 as an example, since the sliding action of the car door 1 Both sides of the frame and the car door and the underside of the car door are the same, so it goes without saying that the airtight structure of the present invention can be applied to both sides of the car door in addition to the top frame and the underside of the car door.

The reference signs are explained as follows:

1 car door

2 Car entrances and exits

3 door machine

4 drive belt

5 rollers

6 Suspension rails

7, 7a, 7b, 37, 37a, 37b Inclined cam

8, 8a, 8b, 38, 38a, 38b snap rollers

9 The main body of the airtight mechanism

10 axis of rotation

11 torsion spring

12 airtight components

13a, 13b rectifier plate

14 top frame

15 suspension parts

16 elevator car

17 side panels

18 floor

19 top plate

20 blower

21 Car door airtight device

22 Elevator equipment

23 lift passage

24 counterweight

25 main sling

26 rope pulley

27 Turning pulley

28 mechanical room

29 bottom layer

30 top floor

31 floor door

32 bars

Claims (14)

1. A car door air-tight device for sealing the gap between the car door and the elevator car of the car air pressure control type elevator equipment that controls the air pressure in the car. gap, The airtight device for the car door is characterized in that, The airtight device for the car door includes: an airtight mechanism main body rotatable around a rotation axis substantially parallel to the inner surface of the car door; an airtight member for the airtight The component is arranged on the main body of the airtight mechanism, and closes the gap between the car door and the elevator car by contacting the car door, thereby maintaining airtightness; the force applying mechanism, the The force application mechanism applies force to the main body of the airtight mechanism in the direction in which the airtight member leaves the car door with the rotation axis as the center; the rod, the rod is perpendicular to the rotation axis extending in a direction; an engaging roller disposed at a position spaced a predetermined distance from the rotation axis of the rod; and an inclined cam disposed on the car door, When the car door is closed, it engages with the engaging roller, and when the engaging roller engages with the inclined cam, the main body of the airtight mechanism rotates around the rotating shaft to make the the airtight member is in contact with the car door, The airtight member is provided at a position lower than the rotating shaft of the airtight mechanism main body, and the airtight mechanism main body makes the rotation direction of the airtight member in contact with the car door the same as that of the car door. When the pressure inside the elevator car rises higher than the pressure outside the elevator car, the direction in which the airtight member is pressed under the action of air pressure in the car is the same direction. 2. The car door airtight device according to claim 1, characterized in that: A plurality of the inclined cams and the engagement rollers are provided in pairs. 3. The car door airtight device according to claim 1, characterized in that: The engaging roller and the airtight member are disposed at opposite positions with the rotation shaft of the airtight mechanism main body sandwiched therebetween. 4. The car door airtight device according to claim 1, characterized in that: The engaging roller and the airtight member are arranged on the same side relative to the rotation axis of the airtight mechanism main body, and the engaging roller is arranged farther away from the position where the airtight member is arranged. At the position of the rotation shaft, the inclined cam is configured to engage with the engaging roller from the inside of the elevator car. 5. The car door airtight device according to claim 2, characterized in that: A rectifying plate is provided above the rotating shaft, and when air leaks from between the airtight member and the car door, the rectifying plate utilizes the leaked air flow to force the The force in the direction in which the main body of the airtight mechanism rotates in a direction in which the airtight member is in close contact with the car door. 6. The car door airtight device according to claim 5, characterized in that: A plurality of the car doors are provided on the elevator car, and the car door airtight devices are respectively provided on the car doors of the plurality of car doors. 7. A car door air-tight device for sealing the gap between the car door and the elevator car of the car air pressure control type elevator equipment that controls the air pressure in the car. gap, The airtight device for the car door is characterized in that, The airtight device for the car door has: a main body of the airtight mechanism, which can be rotated around a rotation axis approximately parallel to the inner surface of the car door; an airtight member, the airtight The component is arranged on the main body of the airtight mechanism, and closes the gap between the car door and the elevator car by contacting the car door, thereby maintaining airtightness; the force applying mechanism, the The force application mechanism applies force to the main body of the airtight mechanism in the direction in which the airtight member leaves the car door with the rotation axis as the center; the rod, the rod is perpendicular to the rotation axis extending in the direction of the rod; an inclined cam disposed at a position separated from the rotation axis of the rod by a predetermined distance; and an engaging roller disposed on the car door, When the car door is closed, it engages with the inclined cam, and when the engaging roller engages with the inclined cam, the main body of the airtight mechanism rotates around the rotating shaft to make the the airtight member is in contact with the car door, The airtight member is provided at a position lower than the rotating shaft of the airtight mechanism main body, and the airtight mechanism main body makes the rotation direction of the airtight member in contact with the car door the same as that of the car door. When the pressure inside the elevator car rises higher than the pressure outside the elevator car, the direction in which the airtight member is pressed under the action of air pressure in the car is the same direction. 8. The car door airtight device according to claim 7, characterized in that: A plurality of the inclined cams and the engagement rollers are provided in pairs. 9. The car door airtight device according to claim 7, characterized in that: The engaging roller and the airtight member are disposed at opposite positions with the rotation shaft of the airtight mechanism main body sandwiched therebetween. 10. The car door airtight device according to claim 7, characterized in that: The inclined cam is disposed on the same side as the airtight member with respect to the rotation shaft of the airtight mechanism main body, and the inclined cam is disposed farther from the airtight member than the position where the airtight member is disposed. At the position of the rotation axis, the engaging roller is configured to engage with the inclined cam from the inside of the elevator car. 11. The car door airtight device according to claim 8, characterized in that: A rectifying plate is provided above the rotating shaft, and when air leaks from between the airtight member and the car door, the rectifying plate utilizes the leaked air flow to force the The force in the direction in which the main body of the airtight mechanism rotates in a direction in which the airtight member is in close contact with the car door. 12. The car door airtight device according to claim 11, characterized in that: A plurality of the car doors are provided on the elevator car, and the car door airtight devices are respectively provided on the car doors of the plurality of car doors. 13. An elevator device, which controls the air pressure in an elevator car ascending and descending in a hoistway, The elevator installation is characterized in that, The elevator car is provided with a car door airtight device for sealing the gap between the car door and the elevator car, The airtight device for the car door has: a main body of the airtight mechanism, which can be rotated around a rotation axis approximately parallel to the inner surface of the car door; an airtight member, the airtight The component is arranged on the main body of the airtight mechanism, and closes the gap between the car door and the elevator car by contacting the car door, thereby maintaining airtightness; the force applying mechanism, the The force application mechanism applies force to the main body of the airtight mechanism in the direction in which the airtight member leaves the car door with the rotation axis as the center; the rod, the rod is perpendicular to the rotation axis extending in a direction; an engaging roller disposed at a position spaced a predetermined distance from the rotation axis of the rod; and an inclined cam disposed on the car door, When the car door is closed, it engages with the engaging roller, and when the engaging roller engages with the inclined cam, the main body of the airtight mechanism rotates around the rotating shaft to make the the airtight member is in contact with the car door, The airtight member is provided at a position lower than the rotating shaft of the airtight mechanism main body, and the airtight mechanism main body makes the rotation direction of the airtight member in contact with the car door the same as that of the car door. The direction in which the airtight member is pressed when the pressure inside the elevator car rises higher than the pressure outside the elevator car is the same direction. 14. An elevator device, which controls the air pressure in the elevator car ascending and descending in the hoistway, The elevator installation is characterized in that, The elevator car is provided with a car door airtight device for sealing the gap between the car door and the elevator car, The airtight device for the car door has: a main body of the airtight mechanism, which can be rotated around a rotation axis approximately parallel to the inner surface of the car door; an airtight member, the airtight The component is arranged on the main body of the airtight mechanism, and closes the gap between the car door and the elevator car by contacting the car door, thereby maintaining airtightness; the force applying mechanism, the The force application mechanism applies force to the main body of the airtight mechanism in the direction in which the airtight member leaves the car door with the rotation axis as the center; the rod, the rod is perpendicular to the rotation axis extending in the direction of the rod; an inclined cam disposed at a position separated from the rotation axis of the rod by a predetermined distance; and an engaging roller disposed on the car door, When the car door is closed, it engages with the inclined cam, and when the engaging roller engages with the inclined cam, the main body of the airtight mechanism rotates around the rotating shaft to make the the airtight member is in contact with the car door, The airtight member is provided at a position lower than the rotating shaft of the airtight mechanism main body, and the airtight mechanism main body makes the rotation direction of the airtight member in contact with the car door the same as that of the car door. The direction in which the airtight member is pressed when the pressure inside the elevator car rises higher than the pressure outside the elevator car is the same direction.