A traffic engineering tunnel ventilation device

Abstract

The utility model discloses a traffic engineering tunnel ventilation device belongs to tunnel ventilation technical field, a traffic engineering tunnel ventilation device, including the ventilating hood and fan, the fan is in the inside of ventilating hood, the outside fixed dust collecting cap of ventilating hood, the inside of dust collecting cap is linked together with the inside of ventilating hood, the inboard fixed first filter screen of ventilating hood, one side of first filter screen is fixed with first motor, the output of first motor penetrates the inside of first filter screen and is fixed with brush, the top fixed of ventilating hood with second motor, the output of second motor passes through the outside of ventilating hood and extends to the inside and is fixed with transmission shaft simultaneously. The utility model can regularly automatic cleaning dust, solved the ventilation device long -time use, makes the fan blade easy to accumulate dust, thereby causes the ventilation volume reduction, needs the problem of manual periodical cleaning, time -consuming and labor -intensive.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel ventilation technology, and more specifically, it relates to a ventilation device for traffic engineering tunnels. Background Technology

[0002] The main purpose of tunnel ventilation is to replace and purify the air inside the tunnel, reduce the concentration of harmful gases and dust, ensure the health and safety of tunnel construction workers, and improve production efficiency. Existing ventilation devices for traffic engineering tunnels are prone to dust accumulation on the fan blades due to the large amount of dust in the tunnels and long-term use of the ventilation devices, resulting in reduced ventilation volume. They also require regular manual cleaning, which is time-consuming and labor-intensive. Therefore, a new ventilation device for traffic engineering tunnels is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a ventilation device for traffic engineering tunnels that can automatically clean dust periodically. This solves the problem mentioned in the background art where long-term use of ventilation devices leads to dust accumulation on the fan blades, resulting in reduced ventilation and requiring time-consuming and labor-intensive manual cleaning.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a ventilation device for a traffic engineering tunnel, comprising a ventilation hood and a fan, wherein the fan is located inside the ventilation hood, a dust collection hood is fixed to the outside of the ventilation hood, the inside of the dust collection hood is connected to the inside of the ventilation hood, a first filter screen is fixed to the inside of the ventilation hood, a first motor is fixed to one side of the first filter screen, the output end of the first motor passes through the inside of the first filter screen and is fixed with a brush, a second motor is fixed to the top of the ventilation hood, the output end of the second motor extends through the outside of the ventilation hood to the inside and is simultaneously fixed with a drive shaft, two first worm gears are coaxially fixed to the outside of the drive shaft, the two first worm gears are arranged in opposite directions, two mounting slots are provided on one side of the ventilation hood, a first worm wheel is rotatably connected to one side of the ventilation hood, the first worm wheel is located inside the mounting slot, the outside of the first worm wheel is meshed with the outside of the first worm gear, a baffle is fixed to the outside of the first worm wheel, and a second filter screen is provided in the middle of one side of the dust collection hood.

[0005] As a preferred embodiment of this utility model, a second worm is coaxially fixed to the outer side of the transmission shaft, and a second worm wheel is meshed with the outer side of the second worm.

[0006] As a preferred embodiment of this utility model, two supports are rotatably connected to the outer side of the shaft of the second worm gear, and one end of each support is fixedly connected to the inner side of the dust collection hood.

[0007] As a preferred embodiment of this utility model, one end of the shaft of the second worm gear is coaxially fixed with a first connecting rod, and one end of the first connecting rod is rotatably connected to a second connecting rod.

[0008] As a preferred embodiment of this utility model, the lower end of the second connecting rod is rotatably connected to a flap, and both sides of the flap are rotatably connected to the inner side of the dust collection hood.

[0009] As a preferred embodiment of this invention, the flap is positioned above the second filter screen.

[0010] As a preferred embodiment of this invention, the baffle has a semi-circular structure.

[0011] This utility model provides a ventilation device for tunnels in traffic engineering, which has the following beneficial effects:

[0012] 1. The ventilation device for this traffic engineering tunnel can automatically clean dust regularly, solving the problem that after long-term use of the ventilation device, the fan blades easily accumulate dust, resulting in reduced ventilation volume and requiring regular manual cleaning, which is time-consuming and labor-intensive.

[0013] 2. After the dust removal is completed, the ventilation device in the tunnel of this traffic engineering project flips back to its original position, thereby isolating the dust at the bottom of the dust collection hood from the outside world and preventing the fan from sucking up the dust. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a ventilation device for a traffic engineering tunnel according to the present invention.

[0015] Figure 2 This is a cross-sectional structural schematic diagram of a ventilation device for a traffic engineering tunnel according to the present invention.

[0016] Figure 3 This utility model relates to a ventilation device for traffic engineering tunnels. Figure 2 Enlarged diagram of point A in the diagram.

[0017] Figure 4 This utility model relates to a ventilation device for traffic engineering tunnels. Figure 3 Enlarged diagram of point B in the image.

[0018] In the diagram: 1. Ventilation hood; 2. Fan; 3. Dust collection hood; 4. First filter screen; 5. First motor; 6. Brush; 7. Second motor; 8. Drive shaft; 9. First worm gear; 10. Mounting slot; 11. First worm wheel; 12. Baffle; 13. Second filter screen; 14. Second worm gear; 15. Second worm wheel; 16. First connecting rod; 17. Second connecting rod; 18. Flip plate. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a ventilation device for a traffic engineering tunnel, including a ventilation hood 1 and a fan 2. The fan 2 is located inside the ventilation hood 1. A dust collection hood 3 is fixed to the outside of the ventilation hood 1. The inside of the dust collection hood 3 is connected to the inside of the ventilation hood 1. A first filter screen 4 is fixed to the inside of the ventilation hood 1. A first motor 5 is fixed to one side of the first filter screen 4. The output end of the first motor 5 passes through the inside of the first filter screen 4 and is fixed with a brush 6. A second motor 7 is fixed to the top of the ventilation hood 1. The output end of the second motor 7 passes through the outside of the ventilation hood 1 and extends to the inside, and is simultaneously fixed with a drive shaft 8. Two first worm gears 9 are coaxially fixed to the outside of the drive shaft 8. The two first worm gears 9 are arranged in opposite directions. Two mounting slots 10 are opened on one side of the ventilation hood 1. A first worm wheel 11 is also rotatably connected to one side of the ventilation hood 1. The first worm wheel 11 is located inside the mounting slot 10. The outside of the first worm wheel 11 is meshed with the outside of the first worm gear 9. A baffle 12 is fixed to the outside of the first worm wheel 11. A second filter screen 13 is provided in the middle of one side of the dust collection hood 3.

[0023] After dust is filtered through the first filter, the fan reverses direction when regular cleaning is required. Then, the second motor drives two first worm gears via a drive shaft. These first worm gears drive two first worm wheels and two baffles to rotate. Because the two first worm gears are arranged in opposite directions, the two baffles rotate in opposite directions towards the center. The two baffles join together, blocking one end of the ventilation hood. This obstructs the airflow, directing it towards the dust collection hood and out through the second filter. Then, the first motor drives a brush to sweep the dust off the first filter, which falls into the dust collection hood under the influence of the wind. Simultaneously, the opposing airflow further blows away dust from the first filter. This process solves the problem of dust accumulation on the fan blades after prolonged use, leading to reduced ventilation and requiring time-consuming and labor-intensive manual cleaning.

[0024] Furthermore, a second worm gear 14 is coaxially fixed to the outer side of the drive shaft 8. A second worm wheel 15 is meshed with the outer side of the second worm gear 14. Two supports are rotatably connected to the outer side of the shaft of the second worm wheel 15. One end of the support is fixedly connected to the inner side of the dust collection hood 3. A first connecting rod 16 is coaxially fixed to one end of the shaft of the second worm wheel 15. A second connecting rod 17 is rotatably connected to one end of the first connecting rod 16. A flap 18 is rotatably connected to the lower end of the second connecting rod 17. Both sides of the flap 18 are rotatably connected to the inner side of the dust collection hood 3. The flap 18 is located above the second filter screen 13. The baffle 12 has a semi-circular structure.

[0025] During the dust removal process, the drive shaft drives the second worm gear to rotate, which in turn drives the second worm wheel and the first connecting rod to rotate. The first connecting rod pushes the flap downward through the second connecting rod, causing the dust to fall into the bottom of the dust collection hood. After the dust removal is completed, the drive shaft rotates in the opposite direction, causing the flap to return to its original position, thereby isolating the dust at the bottom of the dust collection hood from the outside world and preventing the fan from sucking up the dust.

[0026] The specific usage and function of this embodiment: This utility model filters dust through the first filter screen. When periodic cleaning is required, the fan is started and reversed. Then, the second motor drives the two first worm gears to rotate through the transmission shaft. The two first worm gears drive the two first worm wheels and the two baffles to rotate respectively. Since the two first worm gears are arranged in opposite directions, the two baffles rotate in opposite directions and rotate towards the middle. The two baffles are joined together to block one end of the ventilation hood, so that the air is blocked and redirected to the dust collection hood and blown out through the second filter screen. Then, the first motor drives the brush to rotate, sweeping the dust off the first filter screen. Driven by the wind, the dust falls into the dust collection hood. At the same time, the wind in the opposite direction can further blow away the dust from the first filter screen.

[0027] During the dust removal process, the drive shaft drives the second worm gear to rotate, which in turn drives the second worm wheel and the first connecting rod to rotate. The first connecting rod pushes the flap downward through the second connecting rod, causing the dust to fall into the bottom of the dust collection hood. After the dust removal is completed, the drive shaft rotates in the opposite direction, causing the flap to return to its original position, thereby isolating the dust at the bottom of the dust collection hood from the outside world and preventing the fan from sucking up the dust.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ventilation device for a traffic engineering tunnel, comprising a ventilation hood (1) and a fan (2), characterized in that: The fan (2) is located inside the ventilation hood (1). A dust collection hood (3) is fixed to the outside of the ventilation hood (1). The inside of the dust collection hood (3) is connected to the inside of the ventilation hood (1). A first filter screen (4) is fixed to the inside of the ventilation hood (1). A first motor (5) is fixed to one side of the first filter screen (4). The output end of the first motor (5) passes through the inside of the first filter screen (4) and is fixed with a brush (6). A second motor (7) is fixed to the top of the ventilation hood (1). The output end of the second motor (7) extends through the outside of the ventilation hood (1) to the inside and is simultaneously fixed. A drive shaft (8) is fixed, and two first worm gears (9) are coaxially fixed on the outer side of the drive shaft (8). The two first worm gears (9) are arranged in opposite directions. Two mounting slots (10) are opened on one side of the ventilation hood (1). A first worm wheel (11) is also rotatably connected to one side of the ventilation hood (1). The first worm wheel (11) is located inside the mounting slot (10). The outer side of the first worm wheel (11) is meshed with the outer side of the first worm gear (9). A baffle (12) is fixed on the outer side of the first worm wheel (11). A second filter screen (13) is provided in the middle of one side of the dust collection hood (3).

2. The ventilation device for a traffic engineering tunnel according to claim 1, characterized in that: A second worm (14) is coaxially fixed to the outside of the transmission shaft (8), and a second worm wheel (15) is meshed with the outside of the second worm (14).

3. A ventilation device for a traffic engineering tunnel according to claim 2, characterized in that: The second worm gear (15) has two supports rotatably connected to the outer side of its shaft, and one end of each support is fixedly connected to the inner side of the dust collection hood (3).

4. A ventilation device for a traffic engineering tunnel according to claim 3, characterized in that: The first connecting rod (16) is coaxially fixed at one end of the shaft of the second worm gear (15), and the second connecting rod (17) is rotatably connected at one end of the first connecting rod (16).

5. A ventilation device for a traffic engineering tunnel according to claim 4, characterized in that: The lower end of the second connecting rod (17) is rotatably connected to a flap (18), and both sides of the flap (18) are rotatably connected to the inner side of the dust collection hood (3).

6. A ventilation device for a traffic engineering tunnel according to claim 5, characterized in that: The flap (18) is positioned above the second filter screen (13).

7. A ventilation device for a traffic engineering tunnel according to claim 1, characterized in that: The baffle (12) has a semi-circular structure.

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