Elevator ventilation equipment

Abstract

To provide an air blower capable of further promoting ventilation inside a car of an elevator.SOLUTION: An air blower is equipped with a handrail 4 and a fan. An air intake 6 and an entrance / exit 2 are provided in a car 1. The air inlet 6 supplies air from the outside of the car 1 to the inside of the car 1. The entrance / exit 2 exhausts the air from the inside of the car 1 to the outside of the car 1. The handrail 4 is a hollow tube placed inside the car 1. The handrail 4 forms an air path inside that leads from a first opening 10 at one end to a second opening 11 at the other end. An airflow pipe is arranged such that the distance between the second opening 11 and the entrance / exit 2 is shorter than the distance between the first opening 10 and the entrance / exit 2. A fan is installed in the air path of the airflow pipe. The fan blows air from the first opening 10 as the upstream side to the second opening 11 as the downstream side.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to an elevator ventilation device. [Background technology]

[0002] Patent Document 1 discloses an example of an elevator ventilation device. A handrail is provided inside the elevator car. Air from an air conditioning device provided outside the elevator car is blown out from an outlet provided on the side of the handrail. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 62-181583 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the elevator of Patent Document 1, the air blown out from the outlets on the side of the handrail may stagnate inside the car, which may hinder ventilation inside the car.

[0005] The present disclosure is directed to solving such problems, and provides a blower device that can further promote ventilation inside an elevator car. [Means for solving the problem]

[0006] The elevator ventilation device according to the present disclosure is disposed inside an elevator car and comprises an air duct and a fan, the car being provided with an air supply section that supplies air from outside the car into the interior of the car and an air exhaust section that exhausts air inside the car to the outside of the car, the air duct being a hollow tube that forms an air passage that leads from a first opening provided at one end of the air duct to a second opening provided at the other end of the air duct, the air passage not being directly connected to the air supply section and the air exhaust section, the distance between the second opening and the air exhaust section being shorter than the distance between the first opening and the air exhaust section, the fan being disposed in the air passage of the air duct and blowing air with the first opening on the upstream side and the second opening on the downstream side, causing air inside the car to flow from the first opening into the air passage and to be blown out from the second opening When the exhaust section is an entrance / exit of the car, the air duct is arranged so that the distance between the second opening and the entrance / exit is shorter than the distance between the first opening and the entrance / exit. . The elevator ventilation device according to the present disclosure is disposed inside an elevator car and comprises an air duct and a fan, the car being provided with an air supply section that supplies air from outside the car into the interior of the car and an exhaust section that exhausts air inside the car to the outside of the car, the air duct being a hollow tube that forms an air passage that leads from a first opening provided at one end of the air duct to a second opening provided at the other end of the air duct, the air passage not being directly connected to the air supply section and the exhaust section, the distance between the second opening and the exhaust section being shorter than the distance between the first opening and the exhaust section, the fan being disposed in the air passage of the air duct and blowing air with the first opening on the upstream side and the second opening on the downstream side, causing air inside the car to flow from the first opening into the air passage and blow out from the second opening, and the air duct being a handrail. The elevator ventilation device according to the present disclosure is disposed inside an elevator car and comprises an air duct and a fan, the car being provided with an air supply section that supplies air from outside the car into the interior of the car and an exhaust section that exhausts air inside the car to the outside of the car, the air duct being a hollow tube that forms an air passage leading from a first opening provided at one end of the air duct to a second opening provided at the other end of the air duct, the air passage not being directly connected to the air supply section and the exhaust section, the distance between the second opening and the exhaust section being shorter than the distance between the first opening and the exhaust section, the fan being disposed in the air passage of the air duct and blowing air with the first opening on the upstream side and the second opening on the downstream side, causing air inside the car to flow from the first opening into the air passage and blow out from the second opening, and a third opening that leads to the air passage is provided in the air duct between the first opening and the second opening. The elevator ventilation device according to the present disclosure is disposed inside an elevator car and comprises an air duct and a fan, the car being provided with an air supply section that supplies air from outside the car into the interior of the car and an exhaust section that exhausts air inside the car to the outside of the car, the air duct being a hollow tube that forms an air passage that leads from a first opening provided at one end of the air duct to a second opening provided at the other end of the air duct, the air passage being not directly connected to the air supply section and the exhaust section, the distance between the second opening and the exhaust section being shorter than the distance between the first opening and the exhaust section, the fan being disposed in the air passage of the air duct and blowing air with the first opening on the upstream side and the second opening on the downstream side, causing air inside the car to flow from the first opening into the air passage and be blown out from the second opening, the air duct being a handrail, and a third opening that leads to the air passage being provided below between the first opening and the second opening. [Effects of the Invention]

[0007] The air blower according to the present disclosure can further promote ventilation inside the elevator car. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a plan view of the car according to the first embodiment. [Figure 2] 2 is a cross-sectional view of the car according to the first embodiment taken along line AA in FIG. 1. FIG. [Figure 3] 1 is a cross-sectional view taken along a plane perpendicular to the central axis of a handrail according to Embodiment 1. FIG. [Figure 4] 1 is a cross-sectional view of a vertical plane including the central axis of a handrail according to Embodiment 1. FIG. [Figure 5] FIG. 2 is an enlarged perspective view of the rear end portion of the handrail according to the first embodiment. [Figure 6] 3 is a diagram showing an example of air blowing by the air blowing device according to the first embodiment. FIG. [Figure 7] 3 is a diagram showing an example of air blowing by the air blowing device according to the first embodiment. FIG. [Figure 8] FIG. 10 is a cross-sectional view of a vertical plane including the central axis of a handrail according to a second embodiment. [Figure 9] 10 is a diagram showing an example of air blowing by the air blowing device according to the second embodiment. FIG. [Figure 10] 10 is a diagram showing an example of air blowing by the air blowing device according to the second embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present disclosure will be described with reference to the accompanying drawings, in which the same or corresponding parts are denoted by the same reference numerals, and redundant descriptions will be appropriately simplified or omitted.

[0010] Embodiment 1 FIG. 1 is a plan view of a car 1 according to the first embodiment.

[0011] Cage 1 is an elevator device. Elevators are used in buildings with multiple floors. An elevator shaft is provided in the building. The shaft is a long space extending vertically between multiple floors. Cage 1 travels vertically in the shaft, transporting passengers inside between multiple floors. Cage 1 is provided with an entrance / exit 2. Entrance / exit 2 is an opening that leads from the inside of cage 1 to the outside. Entrance / exit 2 is provided on the front of cage 1.

[0012] The car 1 is equipped with a car door 3. The car door 3 is provided at a doorway 2. The car door 3 is a device that opens and closes when the car 1 stops at any floor. When the car door 3 is open, passengers enter and exit the car 1 through the doorway 2.

[0013] The car 1 is equipped with a pair of handrails 4. Each handrail 4 is a rod-shaped device that passengers inside the car 1 hold onto. One handrail 4 is attached to the left wall inside the car 1. The other handrail 4 is attached to the right wall inside the car 1. Each handrail 4 is arranged inside the car 1 with its longitudinal direction extending in the front-to-rear direction. The central axis of each handrail 4 is oriented in the front-to-rear direction.

[0014] FIG. 2 is a cross-sectional view of the car 1 according to the first embodiment taken along the line AA in FIG.

[0015] An air intake 6 is provided in the ceiling inside the car 1. In this example, the air intake 6 is provided on the rear side of the ceiling inside the car 1.

[0016] The car 1 is equipped with a ventilation device 7. The ventilation device 7 is arranged on the outside of the car 1 at an upper part. The ventilation device 7 is a device that blows air from outside the car 1 into the inside of the car 1. The ventilation device 7 is connected to the air intake 6. The ventilation device 7 blows air from outside the car 1 into the inside of the car 1 through the air intake 6. The air intake 6 is an example of an air intake section that supplies air from outside the car 1 into the inside of the car 1.

[0017] Air blown into the car 1 flows downward from the ceiling. The air inside the car 1 is exhausted to the outside of the car 1 through the entrance / exit 2 of the car 1 or the like. The entrance / exit 2 is an example of an exhaust section that exhausts the air inside the car 1 to the outside of the car 1. Here, the entrance / exit 2 as an exhaust section includes both the entire entrance / exit 2 when the car door 3 is fully open, and the gap between the entrance / exit 2 and the car door 3 when the car door 3 is fully closed. The further away from the air intake section and the exhaust section inside the car 1 is, the more likely ventilation is to be impeded. In this example, ventilation at the lower rear inside the car 1 may be impeded.

[0018] Inside the car 1, the handrail 4 is positioned so that the distance between the rear end of the handrail 4 and the air intake 6 is shorter than the distance between the front end of the handrail 4 and the air intake 6. In other words, the handrail 4 is positioned so that its rear end is closer to the air intake 6 than its front end. Also, the handrail 4 is positioned so that the distance between the front end of the handrail 4 and the entrance / exit 2 is shorter than the distance between the rear end of the handrail 4 and the entrance / exit 2. In other words, the handrail 4 is positioned so that its front end is closer to the entrance / exit 2 than its rear end.

[0019] FIG. 3 is a cross-sectional view taken along a plane perpendicular to the central axis of the handrail 4 according to the first embodiment.

[0020] In an elevator, a blower 8 is applied to promote ventilation inside a car 1. The blower 8 includes a handrail 4. The handrail 4 is a hollow tube. In this example, the handrail 4 is a cylindrical straight tube. The handrail 4 is attached to the wall surface inside the car 1 by a support bracket 5.

[0021] FIG. 4 is a cross-sectional view of a vertical plane including the central axis of the handrail 4 according to the first embodiment.

[0022] A first opening 10 is provided at one end of the handrail 4. A second opening 11 is provided at the other end of the handrail 4. In this example, the first opening 10 is provided at the rear end of the handrail 4. The second opening 11 is provided at the front end of the handrail 4. The handrail 4 forms an air passage 12 inside that connects the first opening 10 to the second opening 11. In other words, the handrail 4 is an example of an air duct. The space inside the car 1 and the air passage 12 of the handrail 4 are connected by the first opening 10 and the second opening 11.

[0023] The blower 8 includes a fan 9. The fan 9 is placed in an air passage 12 inside the handrail 4. The fan 9 is a device that blows air. The fan 9 blows air from the first opening 10 on the upstream side and the second opening 11 on the downstream side. In this example, the fan 9 blows air from the rear side to the front side inside the car 1. The fan 9 operates by receiving a supply of power from a power supply device placed outside the wall surface of the car 1, for example, via wiring that passes through the support bracket 5. Alternatively, the fan 9 may operate by receiving a supply of power from a rechargeable battery or the like placed in the air passage 12 of the handrail 4.

[0024] FIG. 5 is an enlarged perspective view of the rear end portion of the handrail 4 according to the first embodiment.

[0025] The handrail 4 has a protective portion 13. The protective portion 13 is arranged to cover the first opening 10. The protective portion 13 is a breathable member. The protective portion 13 prevents foreign matter from entering the air passage 12. The protective portion 13 is, for example, a net or a filter. The protective portion 13 may be a plate-like member provided with a plurality of holes or slits.

[0026] Next, an example of air blowing by the air blowing device 8 will be described with reference to FIGS. 6 and 7 are diagrams showing examples of air blowing by the air blowing device 8 according to the first embodiment.

[0027] FIG. 6 shows a perspective view of the blower 8. The fan 9 of the blower 8 causes air from inside the car 1 to flow into the inside of the handrail 4 from a first opening 10 at the rear end of the handrail 4. The air that has flowed into the inside of the handrail 4 flows from upstream to downstream through an air passage 12 by the fan 9. The air that has passed through the air passage 12 is blown out from a second opening 11 at the front end of the handrail 4 by the fan 9. At this time, the air blown out from the second opening 11 flows forward while drawing in surrounding air. In this way, the blower 8 creates an air flow from the rear to the front inside the car 1.

[0028] FIG. 7 shows an example of air flow inside the car 1. The intake and exhaust sections are not directly connected to the air passage 12 inside the handrail 4. The handrail 4 is arranged so that the first opening 10 is at the rear side of the interior of the car 1. The handrail 4 is arranged so that the second opening 11 is at the front side of the interior of the car 1. The handrail 4 is arranged so that the first opening 10 is on the opposite side of the air supply section in the vertical direction inside the car 1. In this example, the air supply section, the air intake port 6, is provided on the upper side of the car, so the first opening 10 is provided on the lower side inside the car 1. Note that if the air supply section is provided on the lower side of the car 1, the first opening 10 may also be provided on the upper side inside the car 1. Inside the car 1, air is supplied from the air intake port 6. Air from the rear of the car 1 flows into the air passage 12 inside the handrail 4 through the first opening 10 by the fan 9 of the blower 8. This causes the air from the rear side inside the car 1 to be sent to the front side. Furthermore, air is blown out from the second opening 11 to the front side of the interior of the car 1 by the fan 9 of the blower 8. The air flowing toward the front side of the interior of the car 1 is exhausted to the outside of the car 1 from the entrance / exit 2, which serves as an exhaust section. This promotes the exhaust of the air at the front side of the interior of the car 1 to the outside of the car 1.

[0029] The air supply section may be a gap between the ceiling inside the car 1 and the wall surface inside the car 1. The exhaust section may be a vent hole provided on the wall surface inside the car 1. The exhaust section may be a gap between the floor surface inside the car 1 and the wall surface inside the car 1. The gap may be hidden from the inside of the car 1 by, for example, a baseboard.

[0030] Furthermore, the handrail 4 does not have to be cylindrical in shape, but may be shaped like a prism, for example.

[0031] Furthermore, the air blower 8 may be provided with an air duct arranged inside the car 1 so as to form an air passage 12 between a first opening 10 and a second opening 11 provided at both ends, together with the handrail 4 or in place of the handrail 4. In this case, the air duct does not need to have the strength required of the handrail 4. Furthermore, the air duct may be arranged at a position lower than the handrail 4, or at a position higher than the handrail 4.

[0032] As described above, the blower device 8 according to the first embodiment includes the handrail 4, which is an example of an air duct, and the fan 9. The car 1 is provided with the air inlet 6, which is an example of an air supply section, and the entrance / exit 2, which is an example of an exhaust section. The air inlet 6 supplies air from outside the car 1 to the inside of the car 1. The entrance / exit 2 exhausts air inside the car 1 to the outside of the car 1. The handrail 4 is a hollow tube disposed inside the car 1. The handrail 4 forms an air passage 12 therein, which runs from a first opening 10 provided at one end to a second opening 11 provided at the other end. The air duct is disposed so that the distance between the second opening 11 and the entrance / exit 2 is shorter than the distance between the first opening 10 and the entrance / exit 2. The fan 9 is disposed in the air passage 12 of the air duct. The fan 9 blows air with the first opening 10 on the upstream side and the second opening 11 on the downstream side.

[0033] With this configuration, an airflow is formed toward the entrance / exit 2 of the car 1, which promotes the discharge of air inside the car 1 to the outside of the car 1. This promotes ventilation inside the car 1. In other words, the air inside the car 1 is quickly replaced. Furthermore, because the air passage 12 through which the airflow from the fan 9 passes is formed inside the handrail 4, the blower device 8 is less likely to cause discomfort to passengers inside the car 1 due to direct contact with the airflow. Even when the car 1 is crowded with passengers, the discharge of air inside the car 1 to the outside of the car 1 is promoted. Furthermore, the blower device 8 can be installed by replacing the existing handrail with a handrail 4 equipped with the fan 9, which makes it easy to install the blower device 8 in existing elevators.

[0034] Furthermore, the handrail 4 is arranged so that the distance between the first opening 10 and the air inlet 6 is shorter than the distance between the second opening 11 and the air inlet 6.

[0035] With this configuration, the pressure in the vicinity of the air inlet 6 decreases due to the inflow of air from the first opening 10 into the air passage 12, so that air outside the car 1 is more efficiently supplied to the inside of the car 1. In addition, the pressure in the vicinity of the exhaust section increases due to the outflow of air from the air passage 12 to the second opening 11, so that air inside the car 1 is more efficiently exhausted to the outside of the car 1. This further promotes ventilation inside the car 1.

[0036] The handrail 4 also has a protective portion 13. The protective portion 13 covers the first opening 10. The protective portion 13 prevents foreign matter from entering the air passage 12.

[0037] This configuration prevents dust and other foreign matter from entering air passage 12. This allows fans 9 and other components of blower device 8 to operate more stably.

[0038] Embodiment 2 In the second embodiment, differences from the example disclosed in the first embodiment will be described in particular detail. For features not described in the second embodiment, any of the features of the example disclosed in the first embodiment may be adopted.

[0039] FIG. 8 is a cross-sectional view of a vertical plane including the central axis of the handrail 4 according to the second embodiment.

[0040] The air blower 8 includes a plurality of fans 9. In the air blower 8 of this example, a plurality of fans 9 are arranged in the air passage 12 of one handrail 4.

[0041] A plurality of third openings 14 are provided on the side of the handrail 4. Each of the third openings 14 communicates with the air passage 12. Each of the third openings 14 is arranged between the first opening 10 and the second opening 11. In this example, each of the third openings 14 is provided on the underside of the handrail 4. The multiple third openings 14 are arranged side by side along the longitudinal direction of the handrail 4. Some or all of the multiple third openings 14 are provided downstream of at least one of the fans 9. The space inside the car 1 and the air passage 12 of the handrail 4 communicate with each other through the third openings 14.

[0042] Next, an example of air blowing by the air blowing device 8 will be described with reference to FIGS. 9 and 10 are diagrams showing examples of air blowing by the air blowing device 8 according to the second embodiment.

[0043] FIG. 9 shows a perspective view of the blower 8. The fan 9 of the blower 8 causes air from inside the car 1 to flow into the inside of the handrail 4 through a first opening 10 at the rear end of the handrail 4. The air that flows into the inside of the handrail 4 flows from upstream to downstream through an air passage 12 driven by multiple fans 9. A portion of the air that has passed through the air passage 12 is blown out from a second opening 11 at the front end of the handrail 4 by multiple fans 9. At this time, the air blown out from the second opening 11 flows forward while drawing in surrounding air. In addition, a portion of the air that has passed through the air passage 12 is blown downward from one of the third openings 14. At this time, the air blown out from the third opening 14 flows forward while drawing in surrounding air. In this way, the blower 8 creates an air flow along the handrail 4 from the rear to the front inside the car 1.

[0044] FIG. 10 shows an example of the air flow inside car 1. Inside car 1, air is supplied from air inlet 6. Air from the rear of car 1 is flowed into air passage 12 inside handrail 4 from first opening 10 by fan 9 of blower 8. This causes the air from the rear inside car 1 to be sent to the front. In addition, air is blown out from second opening 11 and multiple third openings 14 to the front inside car 1 by fan 9 of blower 8. Air flowing toward the front inside car 1 is exhausted to the outside of car 1 from entrance / exit 2, which serves as an exhaust section. This promotes the exhaust of air from the front inside car 1 to the outside of car 1.

[0045] As described above, in the handrail 4 of the air blower 8 according to the second embodiment, the third opening 14 communicating with the air passage 12 is provided between the first opening 10 and the second opening 11. The third opening 14 is provided downstream of the fan 9. In addition, the third opening 14 is provided on the lower side of the handrail 4.

[0046] With this configuration, the airflow from the air intake 6 of the car 1 toward the entrance 2 is formed along the handrail 4, which prevents air from stagnating throughout the entire interior of the car 1, including the area between the front and rear sides. This further promotes ventilation inside the car 1. In addition, because the air is blown downward from the handrail 4, the blower 8 does not cause discomfort to passengers inside the car 1 due to the airflow directly hitting their faces, etc. [Explanation of symbols]

[0047] 1 car, 2 entrance / exit, 3 car door, 4 handrail, 5 support bracket, 6 air intake, 7 ventilation device, 8 blower, 9 fan, 10 first opening, 11 second opening, 12 air passage, 13 protective part, 14 third opening

Claims

1. Located inside the elevator car, Equipped with an air duct and a fan, the car is provided with an air supply unit that supplies air from outside the car to the inside of the car and an air exhaust unit that exhausts air inside the car to the outside of the car, the air duct is a hollow tube and forms an air passage that leads from a first opening provided at one end of the air duct to a second opening provided at the other end of the air duct; the air passage is not directly connected to the air intake section and the air exhaust section, a distance between the second opening and the exhaust portion is shorter than a distance between the first opening and the exhaust portion; the fan is disposed in the air passage of the air duct, and blows air with the first opening on the upstream side and the second opening on the downstream side, thereby causing air inside the car to flow from the first opening into the air passage and to be blown out from the second opening; When the exhaust section is an entrance / exit of the car, The air duct is arranged so that the distance between the second opening and the entrance is shorter than the distance between the first opening and the entrance. Elevator ventilation equipment.

2. the first opening is disposed at the rear side of the interior of the car; The second opening is disposed at the front side of the interior of the car. The elevator ventilation device according to claim 1.

3. Located inside the elevator car, Equipped with an air duct and a fan, the car is provided with an air supply unit that supplies air from outside the car to the inside of the car and an air exhaust unit that exhausts air inside the car to the outside of the car, the air duct is a hollow tube and forms an air passage that leads from a first opening provided at one end of the air duct to a second opening provided at the other end of the air duct; the air passage is not directly connected to the air intake section and the air exhaust section, a distance between the second opening and the exhaust portion is shorter than a distance between the first opening and the exhaust portion; the fan is disposed in the air passage of the air duct, and blows air with the first opening on the upstream side and the second opening on the downstream side, thereby causing air inside the car to flow from the first opening into the air passage and to be blown out from the second opening; The air duct is a handrail Elevator ventilation equipment.

4. Located inside the elevator car, Equipped with an air duct and a fan, the car is provided with an air supply unit that supplies air from outside the car to the inside of the car and an air exhaust unit that exhausts air inside the car to the outside of the car, the air duct is a hollow tube and forms an air passage that leads from a first opening provided at one end of the air duct to a second opening provided at the other end of the air duct; the air passage is not directly connected to the air intake section and the air exhaust section, a distance between the second opening and the exhaust portion is shorter than a distance between the first opening and the exhaust portion; the fan is disposed in the air passage of the air duct, and blows air with the first opening on the upstream side and the second opening on the downstream side, thereby causing air inside the car to flow from the first opening into the air passage and to be blown out from the second opening; In the air duct, a third opening communicating with the air passage is provided between the first opening and the second opening. Elevator ventilation equipment.

5. Located inside the elevator car, Equipped with an air duct and a fan, the car is provided with an air supply unit that supplies air from outside the car to the inside of the car and an air exhaust unit that exhausts air inside the car to the outside of the car, the air duct is a hollow tube and forms an air passage that leads from a first opening provided at one end of the air duct to a second opening provided at the other end of the air duct; the air passage is not directly connected to the air intake section and the air exhaust section, a distance between the second opening and the exhaust portion is shorter than a distance between the first opening and the exhaust portion; the fan is disposed in the air passage of the air duct, and blows air with the first opening on the upstream side and the second opening on the downstream side, thereby causing air inside the car to flow from the first opening into the air passage and to be blown out from the second opening; The air duct is a handrail, and a third opening communicating with the air passage is provided on the lower side between the first opening and the second opening. Elevator ventilation equipment.

6. The third opening is provided downstream of the fan. The elevator ventilation device according to claim 4 or 5.

7. One of the first opening and the air supply unit is disposed on an upper side inside the car, and the other is disposed on a lower side inside the car. The elevator ventilation device according to any one of claims 1 to 6.

8. When the air supply unit is an air supply port provided on the ceiling of the car, The first opening is disposed on the lower side of the interior of the car. The elevator ventilation device according to claim 7.

9. The air duct is arranged so that the distance between the first opening and the air supply unit is shorter than the distance between the second opening and the air supply unit. The elevator ventilation device according to any one of claims 1 to 8.

10. When the air supply unit is an air supply port provided on the ceiling of the car, The air duct is arranged so that the distance between the first opening and the air supply port is shorter than the distance between the second opening and the air supply port. The elevator ventilation device according to claim 9.

11. The air duct has a protective portion that is breathable and covers the first opening. The elevator ventilation device according to any one of claims 1 to 10.

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