Ventilation equipment in elevator

Abstract

The utility model discloses ventilation equipment in an elevator, and particularly relates to the technical field of elevators, the ventilation equipment in the elevator comprises a lift car, a fresh air mechanism is arranged above a top plate, the fresh air mechanism comprises an exhaust fan fixed above the top plate, a main air pipe is arranged on one side of an air outlet of the exhaust fan, an air supply assembly is arranged at the bottom of the main air pipe, and the air supply assembly is arranged on the top plate. The air supply assembly comprises an auxiliary air pipe, a rotatable air guide block is arranged at one end of the auxiliary air pipe, an air exhaust groove is formed in one side of the air guide block, and a bottom plate is arranged at the bottom end of the air guide block. Fresh air is sucked into the main air pipe through the exhaust fan and blown into the air supply assembly, the rotatable air guide block is arranged in the air supply assembly and feeds the fresh air into the lift car, the fresh air cannot be vertically blown into the lift car, the head or the body of a passenger cannot be directly blown, and therefore uncomfortable experience cannot be caused.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to a ventilation device for elevators. Background Technology

[0002] An elevator is a fixed lifting device that serves designated floors. The space inside an elevator is usually small and highly sealed, which can easily lead to poor air circulation. In hot seasons, the temperature inside the elevator may rise, causing discomfort to passengers. Existing elevators usually have ventilation devices installed to enhance air circulation inside the elevator car.

[0003] Existing elevator ventilation systems use fans installed on the top of the car to blow air directly into the car. The air inlets are usually located at the corners of the car and point vertically downwards. Passengers standing directly under the air inlets will be blown by the wind, which may cause discomfort and result in a poor user experience. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation device for elevators to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An elevator ventilation system includes a car, a top plate on the top of the car, a fresh air mechanism above the top plate, an exhaust fan fixed above the top plate, a main air duct on one side of the exhaust fan's outlet, an air supply assembly at the bottom of the main air duct, an auxiliary air duct, a rotatable guide block at one end of the auxiliary air duct, an exhaust slot on one side of the guide block, a base plate at the bottom of the guide block, a main shaft at the top of the base plate, an end of the main shaft extending upward through the guide block into the interior of the auxiliary air duct, a fan blade at the top of the main shaft, and the auxiliary air duct located inside the car.

[0007] Preferably, the top end of the air guide block is located inside the secondary air duct, and the bottom end of the air guide block is located below the secondary air duct.

[0008] Preferably, the top of the air guide block has a ventilation hole facing downwards, and the top of the base plate has an exhaust hole, with the ventilation hole and the exhaust hole corresponding to each other.

[0009] Preferably, a bearing housing is fixed inside the secondary air duct, a bearing is fixed inside the bearing housing, and the main shaft extends upward through the inner bushing in the middle of the bearing.

[0010] Preferably, a connecting pipe is provided between the exhaust fan and the main air duct, and a support frame is fixed to the outside of the exhaust fan.

[0011] Preferably, an air inlet pipe is also provided at the bottom of the main air duct, and the air inlet pipe extends through the top plate into the interior of the car.

[0012] Preferably, the extended end of the air inlet pipe is bent toward the inner wall of the car.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] The fresh air system, which mainly consists of an exhaust fan, a main air duct, and an air supply component, draws fresh air into the main air duct and blows it into the air supply component. The air supply component contains a rotatable air guide block that delivers the fresh air into the car. The fresh air will not blow vertically into the car and will not blow directly onto the passengers' heads or bodies, thus avoiding any uncomfortable experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a perspective view of the present utility model;

[0018] Figure 3 This is a schematic diagram of the fresh air mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the air supply component of this utility model;

[0020] Figure 5 This is an exploded view of the air guide block and the base plate of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Main air duct; 2. Car; 3. Top plate; 4. Air inlet duct; 5. Air supply assembly; 6. Exhaust fan; 7. Connecting pipe; 8. Support frame; 9. Fan blade; 10. Bearing housing; 11. Main shaft; 12. Air guide block; 13. Floor plate; 14. Secondary air duct; 15. Exhaust duct; 16. Ventilation hole; 17. Exhaust hole. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1 - Figure 5 An elevator ventilation device is shown, including a car 2. A top plate 3 is provided on the top of the car 2. A fresh air mechanism is provided above the top plate 3. The fresh air mechanism includes an exhaust fan 6 fixed above the top plate 3. A main air duct 1 is provided on one side of the exhaust fan 6. An air supply assembly 5 is provided at the bottom of the main air duct 1. The air supply assembly 5 includes a secondary air duct 14. A rotatable air guide block 12 is provided at one end of the secondary air duct 14. An exhaust duct 15 is provided on one side of the air guide block 12. A base plate 13 is provided at the bottom of the air guide block 12. A main shaft 11 is provided at the top of the base plate 13. The end of the main shaft 11 extends upward through the air guide block 12 into the interior of the secondary air duct 14. A fan blade 9 is provided at the top of the main shaft 11. The secondary air duct 14 is located inside the car 2.

[0025] In this embodiment, the top of the air guide block 12 is located inside the secondary air duct 14, and the bottom of the air guide block 12 is located below the secondary air duct 14. Specifically, air passes through the main air duct 1 and then enters the secondary air duct 14. After entering the secondary air duct 14, the air blows the fan blades 9, which rotate simultaneously. The fan blades 9 drive the main shaft 11 to rotate, and the main shaft 11 rotates, which in turn drives the air guide block 12 to rotate. When the air guide block 12 rotates, some air passes through the exhaust duct 15 and flows out to the side of the air guide block 12. At this time, the air will not blow vertically downward. Meanwhile, as the air passes through the exhaust duct 15, the space of the exhaust duct 15 is small, and the flow rate is accelerated, thus not affecting the supply of fresh air into the car 2.

[0026] like Figure 1 - Figure 5 As shown, the top of the air guide block 12 has a downward-facing ventilation hole 16, and the top of the bottom plate 13 has an exhaust hole 17. The ventilation hole 16 and the exhaust hole 17 correspond to each other. Specifically, after the fresh air enters the secondary air duct 14, it continues to flow downward after passing through the fan blades 9. Some of the air passes through the ventilation hole 16 and the exhaust hole 17 and is then blown into the car 2. The airflow that blows vertically downward is small and will not cause a bad experience for passengers.

[0027] like Figure 1 - Figure 5 As shown, a bearing housing 10 is fixed inside the auxiliary air duct 14, and a bearing is fixed inside the bearing housing 10. The main shaft 11 extends upward through the inner liner of the bearing. Specifically, the bearing housing 10 and the bearing are used to support the main shaft 11, ensuring that the main shaft 11 rotates without shaking. The main shaft 11 and the inner liner of the bearing are fixedly connected, and the main shaft 11 and the inner liner are interference fit to prevent the main shaft 11 from sliding down when rotating.

[0028] like Figure 1 - Figure 5As shown, a connecting pipe 7 is provided between the exhaust fan 6 and the main air duct 1, and a support frame 8 is fixed to the outside of the exhaust fan 6. Specifically, the connecting pipe 7 is made of rubber hose. The function of the connecting pipe 7 is to connect the exhaust fan 6 and the main air duct 1. The connection point is sealed with a sealing ring to prevent air leakage between the exhaust fan 6 and the main air duct 1. The support frame 8 provides stable support for the exhaust fan 6 to maintain stable and reliable air supply.

[0029] like Figure 1 - Figure 3 As shown, an air inlet pipe 4 is also provided at the bottom of the main air duct 1. The air inlet pipe 4 extends through the top plate 3 into the interior of the car 2. The extended end of the air inlet pipe 4 bends towards the inner wall of the car 2. Specifically, the exhaust fan 6 draws air from the elevator shaft. After passing through the exhaust fan 6, the air can pass through the main air duct 1 and enter the air inlet pipe 4, and then be blown towards the inner wall of the car 2, and then disperse into the car 2 to achieve the effect of ventilation.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An air supply device in an elevator, comprising a car (2), characterized in that: The top of the car (2) is provided with a top plate (3), the top of the top plate (3) is provided with a fresh air mechanism, the fresh air mechanism comprises an air extractor (6) fixed above the top plate (3), the air extractor (6) is provided with a main air pipe (1) on the air outlet side, the bottom of the main air pipe (1) is provided with a air supply assembly (5), the air supply assembly (5) comprises a auxiliary air pipe (14), one end of the auxiliary air pipe (14) is provided with a rotatable air guide block (12), one side of the air guide block (12) is provided with an air exhaust groove (15), the bottom end of the air guide block (12) is provided with a bottom plate (13), the top end of the bottom plate (13) is provided with a main shaft (11), the end of the main shaft (11) extends upwardly to the inside of the auxiliary air pipe (14) through the air guide block (12), the top end of the main shaft (11) is provided with a fan blade (9), and the auxiliary air pipe (14) is located inside the car (2).

2. An air distribution apparatus for an elevator according to claim 1, wherein: The top end of the air guide block (12) is located inside the auxiliary air pipe (14), and the bottom end of the air guide block (12) is located below the auxiliary air pipe (14).

3. An air distribution system for an elevator according to claim 1, wherein: The top of the air guide block (12) is provided with a ventilation hole (16) downwardly, and the top of the bottom plate (13) is provided with an air exhaust hole (17).

4. An air distribution system for an elevator according to claim 1, wherein: The inside of the auxiliary air pipe (14) is fixedly provided with a bearing seat (10), the bearing seat (10) is fixedly provided with a bearing inside, and the main shaft (11) extends upwardly through the inner ring of the bearing.

5. An air distribution system for an elevator according to claim 1, wherein: The air extractor (6) and the main air pipe (1) are provided with a connecting pipe (7), and the outer side of the air extractor (6) is fixedly provided with a support frame (8).

6. An air distribution system for an elevator according to claim 1, wherein: The bottom of the main air pipe (1) is also provided with an air inlet pipe (4), and the air inlet pipe (4) extends to the inside of the car (2) through the top plate (3).

7. An air distribution apparatus for an elevator according to claim 6, wherein: The extension end of the air inlet pipe (4) is bent to the inner wall of the car (2).

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