Ventilation device for an elevator

Abstract

The utility model discloses a kind of ventilation devices suitable for elevator, belong to elevator ventilation technical field, its technical scheme main points include car body, the top of the car body is provided with filter mechanism, the both sides of car body inner wall top are all provided with exhaust mechanism, the front side and the back side of the top of the car body are all fixedly connected with clamping block;The exhaust mechanism includes connecting pipe, exhaust port and exhaust pipe, the connecting pipe is located at the top of exhaust pipe, the surface of exhaust pipe is in contact with the inner wall of car body, the top of exhaust port is fixedly communicated with the bottom of exhaust pipe, solve the ventilation device of the car of part of existing elevator, air supply is from top, due to the kinetic energy attenuation of gravity effect, it is difficult to fully cover car bottom and corner area, leading to air replacement not completely, and high-speed airflow directly acts on passenger head or body, easily lead to the problem of passenger producing uncomfortable feeling.

Description

Technical Field

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

[0002] In modern high-rise buildings, elevators are a frequently used vertical transportation tool, and the ventilation performance of their cabins is directly related to the comfort, health and safety of passengers.

[0003] When an elevator malfunctions, manually ventilating the elevator is inconvenient. The elevator interior is a relatively enclosed space, and when the elevator stops running, it becomes stuffy and poorly lit. Manually ventilating the elevator at this time will increase the physical exertion of the staff and increase the safety risks.

[0004] The existing patent (publication number: CN221318838U) discloses a ventilation device suitable for elevators. In this utility model, when the rubber block on the surface of the connecting rope is stuck at the position of the through hole one, there is no need to pull the connecting rope anymore. At this time, the through groove two is completely released, and then it can be completely independent of manual intervention, so that the air in the elevator can be circulated by the fan, reducing the loss of physical strength of the people in the elevator.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, the ventilation devices in some existing elevator cars supply air from the top. Due to the attenuation of kinetic energy caused by gravity, it is difficult to fully cover the bottom and corner areas of the car, resulting in incomplete air exchange. Furthermore, the high-speed airflow directly affects the passenger's head or body, which can easily cause discomfort to the passenger.

[0006] Therefore, a ventilation device suitable for elevators is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a ventilation device suitable for elevators, which can solve the problem that the ventilation devices of some existing elevator cars supply air from the top. Due to the kinetic energy attenuation caused by gravity, it is difficult to fully cover the bottom and corner areas of the car, resulting in incomplete air replacement. Furthermore, the high-speed airflow directly acts on the head or body of passengers, which can easily cause discomfort to passengers.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a ventilation device suitable for elevators, comprising a car body, a filter mechanism provided on the top of the car body, exhaust mechanisms provided on both sides of the top of the inner wall of the car body, and locking blocks fixedly connected to the front and rear sides of the top of the car body.

[0009] The ventilation mechanism includes a connecting pipe, an exhaust port, and an exhaust pipe. The connecting pipe is located at the top of the exhaust pipe, the surface of the exhaust pipe is in contact with the inner wall of the car body, the top of the exhaust port is fixedly connected to the bottom of the exhaust pipe, and the bottom of the exhaust port is inclined towards the inner wall of the car body.

[0010] Preferably, through holes are provided on both sides of the top of the car body, and the bottom of the connecting pipe passes through the through holes and extends into the interior of the car body.

[0011] Preferably, the top of the exhaust pipe has an air inlet, and the connecting pipe is tightly inserted into the air inlet.

[0012] Preferably, the bottom of the exhaust pipe is fixedly connected to an installation block. There are three installation blocks evenly distributed at the bottom of the exhaust pipe. Each of the two installation blocks has a screw on one side opposite to the other. The screw passes through the installation block and is connected to the internal thread of the car body.

[0013] Preferably, the filtration mechanism includes a mesh cover, an activated carbon filter element, a limiting ring, an air intake fan, and a fixing cylinder. The bottom of the fixing cylinder is fixedly connected to the top of the car body, the air intake fan is fixedly connected to the inner wall of the fixing cylinder, the limiting ring is fixedly connected to the inner wall of the fixing cylinder, the bottom of the activated carbon filter element contacts the top of the limiting ring, the inner wall of the mesh cover is in movable contact with the surface of the fixing cylinder, and the connecting pipe is fixedly connected to the fixing cylinder on the side near the fixing cylinder.

[0014] Preferably, the front and rear sides of the bottom of the mesh cover are fixedly connected with insert blocks, and the insert blocks are movably inserted into the inside of the locking block.

[0015] Preferably, each of the two locking blocks is provided with a limit button on an opposite side. The side of the limit button closer to the locking block passes through the locking block and extends into the interior of the insertion block. The surface of the limit button is threadedly connected to the interior of the locking block.

[0016] Preferably, exhaust holes are provided at the bottom of both sides of the car body, and the number of exhaust holes is several and evenly distributed at the bottom of both sides of the car body.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application sets up an exhaust mechanism, fixes the exhaust pipe to the car body with screws, and tightly inserts the connecting pipe into the air inlet at the top of the exhaust pipe to ensure a stable installation and easy disassembly and maintenance. The inclined exhaust port utilizes the wall adhesion effect to make the airflow diffuse downward along the inner wall of the car body, driving the suction effect to draw in air from all parts of the car body into the circulation, forming an airflow path from top to bottom and discharged from the bottom exhaust port, effectively eliminating dead air angles, avoiding direct blowing on passengers, achieving uniform and gentle air replacement, and improving ventilation comfort and efficiency.

[0019] 2. This application incorporates a filtration mechanism with an activated carbon filter element placed on a limiting ring, forming a closed filtration channel with the fixed cylinder and intake fan. This effectively intercepts dust, impurities, and harmful gases. The mesh cover is secured by a locking block and a locking mechanism, allowing maintenance personnel to quickly disassemble and replace the filter element from outside the car. Simultaneously, the screws can be removed to disassemble the exhaust pipe, and the connecting pipe can be easily cleaned with an external hook-shaped brush. The exhaust pipe and exhaust vent are also cleaned to prevent dust from spreading from inside the car body to the exhaust vent, exhaust pipe, and connecting pipe, thus ensuring unobstructed filtration channels and continuous air purification. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the ventilation device applicable to elevators according to this utility model;

[0021] Figure 2 This is a three-dimensional exploded view of the connecting pipe and the through hole in this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the bottom of the exhaust pipe in this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the interior of the fixed cylinder in this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the top of the exhaust pipe in this utility model;

[0025] Figure 6 This is a three-dimensional exploded view of the locking block and the limiting button in this utility model;

[0026] Figure 7 This is a side view of the connection between the exhaust pipe and the exhaust port in this utility model.

[0027] In the diagram, 1. Car body; 2. Exhaust vent; 3. Ventilation mechanism; 301. Connecting pipe; 302. Exhaust port; 303. Exhaust pipe; 4. Filtering mechanism; 401. Mesh cover; 402. Activated carbon filter element; 403. Limiting ring; 404. Suction fan; 405. Fixing cylinder; 5. Through hole; 6. Locking block; 7. Screw; 8. Mounting block; 9. Insertion block; 10. Air inlet; 11. Limiting button. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7 The present invention provides the following technical solution:

[0030] A ventilation device suitable for elevators includes a car body 1, a filter mechanism 4 is provided on the top of the car body 1, exhaust mechanisms 3 are provided on both sides of the top of the inner wall of the car body 1, and a locking block 6 is fixedly connected to the front and rear sides of the top of the car body 1.

[0031] The ventilation mechanism 3 includes a connecting pipe 301, an exhaust port 302, and an exhaust pipe 303. The connecting pipe 301 is located at the top of the exhaust pipe 303. The surface of the exhaust pipe 303 is in contact with the inner wall of the car body 1. The top of the exhaust port 302 is fixedly connected to the bottom of the exhaust pipe 303, and the bottom of the exhaust port 302 is inclined towards the inner wall of the car body 1.

[0032] In this embodiment: by inserting the air inlet 10 at the top of the exhaust pipe 303 into the connecting pipe 301, and fixing it by screws 7 passing through the mounting block 8, during operation, the suction fan 404 generates suction. Outside air, after being filtered through the mesh cover 401 and activated carbon filter 402, is sent out from the inclined exhaust port 302 along the fixed cylinder 405, connecting pipe 301, and exhaust pipe 303. Utilizing the wall adhesion effect, the airflow diffuses downwards along the inner wall of the car body 1, forming an upward circulation, avoiding direct blowing on passengers, ensuring even distribution of clean air, eliminating dead air zones, and efficiently placing clean air around passengers. To replace the stale air, the original air is discharged from the bottom exhaust port 2. When replacing the activated carbon filter element 402, the maintenance personnel unscrew the limit button 11 on the outside of the car body 1, pull the mesh cover 401 upward to open the fixing cylinder 405, and quickly take out the activated carbon filter element 402 for replacement. This solves the problem that the ventilation device of some existing elevator cars supplies air from the top. Due to the kinetic energy attenuation caused by gravity, it is difficult to fully cover the bottom and corner areas of the car, resulting in incomplete air replacement. In addition, the high-speed airflow directly acts on the passenger's head or body, which can easily cause discomfort to the passenger.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, through holes 5 are provided on both sides of the top of the car body 1, and the bottom of the connecting pipe 301 passes through the through holes 5 and extends into the interior of the car body 1.

[0034] Specifically, such as Figure 1 , Figure 3 and Figure 5 As shown, an air inlet 10 is provided at the top of the exhaust pipe 303, and the connecting pipe 301 is tightly inserted into the air inlet 10.

[0035] Specifically, such as Figure 3 As shown, the bottom of the exhaust pipe 303 is fixedly connected to an installation block 8. There are three installation blocks 8, which are evenly distributed at the bottom of the exhaust pipe 303. Each of the two installation blocks 8 has a screw 7 on one side opposite to it. The screw 7 passes through the installation block 8 and is connected to the internal thread of the car body 1 on the side closer to the installation block 8.

[0036] In this embodiment: the through hole 5 at the top of the car body 1 facilitates the extension of the connecting pipe 301 into the interior of the car body 1. The connecting pipe 301 is tightly inserted into the air inlet 10 of the exhaust pipe 303 to prevent air leakage and facilitate the disassembly, cleaning and maintenance of the exhaust pipe 303. The mounting block 8 at the bottom of the exhaust pipe 303 is threadedly fixed to the car body 1 by screws 7. The screw 7 installation method facilitates the later disassembly of the exhaust pipe 303 to clean the dust that has diffused into the interior of the car body 1.

[0037] Specifically, such as Figure 4 As shown, the filtration mechanism 4 includes a mesh cover 401, an activated carbon filter element 402, a limiting ring 403, an air intake fan 404, and a fixed cylinder 405. The bottom of the fixed cylinder 405 is fixedly connected to the top of the car body 1. The air intake fan 404 is fixedly connected to the inner wall of the fixed cylinder 405. The limiting ring 403 is fixedly connected to the inner wall of the fixed cylinder 405. The bottom of the activated carbon filter element 402 contacts the top of the limiting ring 403. The inner wall of the mesh cover 401 is in movable contact with the surface of the fixed cylinder 405. The connecting pipe 301 is fixedly connected to the fixed cylinder 405 on the side near the fixed cylinder 405.

[0038] Specifically, such as Figure 1 , Figure 4 and Figure 6 As shown, the bottom of the mesh cover 401 is fixedly connected to the front and rear sides with insert blocks 9, and the insert blocks 9 are movably inserted into the inside of the card block 6.

[0039] In this embodiment: the limiting ring 403 supports the activated carbon filter element 402, the suction fan 404 provides stable suction, and together with the fixing cylinder 405, a closed filtration channel is formed to efficiently adsorb odors and harmful gases. The mesh cover 401 is connected to the locking block 6 through the insert block 9 to achieve quick disassembly and assembly. When the filter element needs to be replaced, the limiting button 11 can be removed without tools, and then the mesh cover 401 can be moved upward to open and replace the activated carbon filter element 402.

[0040] Specifically, such as Figure 1 , Figure 4 and Figure 6As shown, each of the two locking blocks 6 has a limit button 11 on its opposite side. The side of the limit button 11 closest to the locking block 6 passes through the locking block 6 and extends into the interior of the insert block 9. The surface of the limit button 11 is threadedly connected to the interior of the locking block 6.

[0041] Specifically, such as Figure 1 As shown, exhaust holes 2 are provided at the bottom of both sides of the car body 1. There are several exhaust holes 2, which are evenly distributed at the bottom of both sides of the car body 1.

[0042] In this embodiment: the threaded engagement between the limit button 11 and the locking block 6 further locks the position of the mesh cover 401. The exhaust holes 2 evenly distributed on both sides of the bottom of the car body 1, together with the side wall exhaust, form an air circulation path. By utilizing the principle of air convection, the turbid air is accelerated to be discharged, effectively eliminating airflow dead zones and improving ventilation efficiency.

[0043] Working principle: By moving the exhaust pipe 303 to the connecting pipe 301 and inserting it into the air inlet 10, and then passing the screw 7 through the mounting block 8 and connecting it to the internal thread of the car body 1, the exhaust pipe 303 can be fixed. After the external controller controls the start of the suction fan 404, it generates suction. Outside air enters through the mesh cover 401 of the filter mechanism 4, and passes through the activated carbon filter element 402 to filter dust, particulate matter and harmful impurities. The purified air flows into the connecting pipe 301 along the fixed cylinder 405, and then through the exhaust pipe 303 from the tilting... The angled exhaust vent 302 directs airflow towards the side wall of the car. Due to the tilted bottom of the exhaust vent 302, the airflow diffuses downwards along the inner wall of the car body 1, forming an upward air circulation through the wall-attachment effect. This airflow movement generates a suction effect, continuously drawing air from other locations inside the car body 1 into the main airflow, creating a circulation path from top to bottom and then exiting through the bottom exhaust vent 2. The suction effect of the airflow effectively drives stale air towards the exhaust vent 2, preventing local air stagnation and achieving a more thorough air replacement. This design avoids direct airflow onto passengers, providing a gentle and comfortable experience. It also ensures even airflow distribution, eliminating dead zones and efficiently replacing stale air inside the car body 1. When the activated carbon filter 402 needs replacement, maintenance personnel simply need to manually unscrew the limit button 11 on the locking block 6 from the outside of the car body 1 to release the fixing restriction on the insertion block 9. They can then pull the mesh cover 401 upwards to separate it from the fixing cylinder 405, quickly and easily removing the activated carbon filter 402 for replacement. This ensures a continuous and stable filtration effect, solving the problem that some existing elevator car ventilation systems supply air from the top, which, due to gravity, reduces kinetic energy and makes it difficult to fully cover the bottom and corner areas of the car, resulting in incomplete air replacement. Furthermore, the high-speed airflow directly impacts passengers' heads or bodies, easily causing discomfort. The exhaust pipe 303 is fixed with screws 7, facilitating subsequent disassembly, cleaning, and maintenance. Additionally, the connecting pipe 301 allows for easy insertion of an external hook-shaped brush to clean out dust that has diffused into the car body 1, preventing any impact on ventilation cleanliness.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ventilation device suitable for use in an elevator, comprising a car body (1), characterized in that: The top of the car body (1) is provided with a filter mechanism (4), and both sides of the top of the inner wall of the car body (1) are provided with exhaust mechanisms (3). The front and rear sides of the top of the car body (1) are fixedly connected with a locking block (6). The ventilation mechanism (3) includes a connecting pipe (301), an exhaust port (302), and an exhaust pipe (303). The connecting pipe (301) is located at the top of the exhaust pipe (303). The surface of the exhaust pipe (303) is in contact with the inner wall of the car body (1). The top of the exhaust port (302) is fixedly connected to the bottom of the exhaust pipe (303). The bottom of the exhaust port (302) is inclined towards the inner wall of the car body (1).

2. A ventilation device for an elevator according to claim 1, characterized in that Both sides of the top of the car body (1) are provided with through holes (5), and the bottom of the connecting pipe (301) passes through the through holes (5) and extends into the interior of the car body (1).

3. A ventilation device for an elevator according to claim 1, characterized in that: The exhaust pipe (303) has an air inlet (10) at its top, and the connecting pipe (301) is tightly inserted into the air inlet (10).

4. A ventilation device for an elevator according to claim 1, characterized in that: The bottom of the exhaust pipe (303) is fixedly connected to an installation block (8). There are three installation blocks (8) evenly distributed at the bottom of the exhaust pipe (303). Each of the two installation blocks (8) has a screw (7) on one side opposite to the other. The screw (7) passes through the installation block (8) and is threaded into the car body (1) on the side closest to the installation block (8).

5. A ventilation device suitable for elevators according to claim 1, characterized in that: The filtration mechanism (4) includes a mesh cover (401), an activated carbon filter element (402), a limiting ring (403), an air intake fan (404), and a fixed cylinder (405). The bottom of the fixed cylinder (405) is fixedly connected to the top of the car body (1). The air intake fan (404) is fixedly connected to the inner wall of the fixed cylinder (405). The limiting ring (403) is fixedly connected to the inner wall of the fixed cylinder (405). The bottom of the activated carbon filter element (402) is in contact with the top of the limiting ring (403). The inner wall of the mesh cover (401) is in movable contact with the surface of the fixed cylinder (405). The connecting pipe (301) is fixedly connected to the fixed cylinder (405) on the side near the fixed cylinder (405).

6. A ventilation device for an elevator according to claim 5, characterized in that The bottom of the mesh cover (401) is fixedly connected to the front and rear sides of the plug (9), and the plug (9) is movably inserted into the inside of the card block (6).

7. A ventilation device for an elevator according to claim 6, characterized in that Each of the two locking blocks (6) has a limit button (11) on its opposite side. The limit button (11) passes through the locking block (6) and extends into the interior of the insert block (9) on the side closer to the locking block (6). The surface of the limit button (11) is threadedly connected to the interior of the locking block (6).

8. A ventilation device for an elevator according to claim 1, characterized in that: The bottom of both sides of the car body (1) is provided with exhaust holes (2), and the number of exhaust holes (2) is several and they are evenly distributed on the bottom of both sides of the car body (1).

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