An air flow control device

Abstract

An air flow control device includes a main body, a driving member, a driving rod, a gas passage, a turntable, and a rotating rod; wherein the main body includes a base, an upper cover, and a side cover; the rotating rod includes a left rod and a right rod; the right rod includes a first rod and a second rod; wherein, the driving member causes the driving rod to rotate, the driving rod passes through the base and is connected to the turntable, the upper cover is provided above the base, the upper cover, the turntable and the base enclose the gas passage, the side cover is connected to the base and the upper cover, the side cover abuts against the turntable, and an air inlet is formed on the upper cover.

Description

Technical Field

[0001] The present invention relates to the field of wind environment simulation tests, and particularly to an air flow control device. Background Art

[0002] In recent years, there have been more and more high-rise buildings and dense residential buildings in cities, such as office buildings, hotels, and high-rise residential communities. These buildings, as products of the urbanization process, are also changing the urban wind environment. When natural wind passes through dense high-rise buildings, due to the interception of the buildings, the wind field outside the buildings and the wind loads on the outer surfaces of the building envelopes are very complex. For example, high-rise buildings cause the surrounding airflows to change direction and magnitude, resulting in phenomena such as downdrafts, accelerated flow around, vortices, and cross-ventilation, making it easy for local strong winds to occur around the high-rise buildings. Especially at the corners and passages, the wind speeds increase sharply, making it difficult for pedestrians to walk and even causing safety accidents such as pedestrians being blown down and injured. Unreasonable building designs can easily lead to poor wind environments in local areas around the buildings, causing discomfort to pedestrians and even threatening the safety of pedestrians. Therefore, the prior art establishes building models and simulates the wind environment to conduct wind force tests on the building models.

[0003] In actual practice, the following problems exist:

[0004] 1. The wind force test system for building models in the prior art has a relatively single simulated wind force mode and can only simulate a single wind force. However, the downdrafts, isohypse winds, and ground winds that actual buildings need to face will all have different impacts on the buildings. If different heights and different coverage areas of wind forces need to be simulated, complex manual interventions are required, such as setting more wind force control devices, and the actual cost is increased.

[0005] 2. The wind force control devices in the prior art can only adjust the magnitude of the flow rate but cannot control the height of the flow rate. For example, they cannot simulate the downdrafts blowing from the sky towards the buildings or the isohypse winds of the buildings, and their functionality is relatively weak.

[0006] 3. In the wind force control devices of the prior art, the moving turntable and the static disk are connected through through-holes, and the through-holes on both disks have the same shape, such as all being round holes, or all being arc-shaped holes, fan-shaped holes, or a combination of arc-shaped holes and round holes. However, there is no solution to construct an incomplete flow path and achieve partial connection by utilizing the shape difference between the holes.

[0007] 4. In order to achieve more functions, the wind force control devices in the prior art will rely on more components. However, more components require more supports and bracket structures, occupying more space and having higher installation costs.

[0008] 5. On the rotating disk of the prior art, there are more than one communication holes to achieve alternate communication. However, although there is only one air flow path at a certain moment, the air flow will be diffusely distributed to different communication holes, but is blocked by the static disk. Therefore, better and more sealing measures are required. Summary of the Invention

[0009] In order to overcome the above problems, the present invention proposes a solution to simultaneously solve the above-mentioned multiple problems.

[0010] The technical solution adopted by the present invention to solve its technical problems is: an air flow control device, including a main body, a driving member, a driving rod, a gas channel, a rotating disk, and a rotating rod; wherein the main body includes a base, an upper cover, and a side cover; the rotating rod includes a left rod and a right rod; the right rod includes a first rod and a second rod.

[0011] Wherein, the driving member rotates the driving rod, the driving rod passes through the base and is connected to the rotating disk, the upper cover is arranged above the base, the upper cover, the rotating disk and the base enclose the gas channel, the side cover is connected to the base and the upper cover, the side cover abuts against the rotating disk, and an air inlet is opened on the upper cover.

[0012] The side cover includes a first hole, a second hole, and a third hole; the second hole and the third hole are located on both sides of the first hole, the rotating disk includes a round hole and an arc-shaped hole, the arc-shaped hole includes an arc surface and flat surfaces at both ends, when the arc-shaped hole simultaneously communicates with the first hole, the second hole, and the third hole, the flat surfaces at both ends are respectively located at positions where a part of the second hole and the third hole communicate.

[0013] The side cover includes a square flat surface, the left rod and the right rod are respectively arranged at two upper corners of the square flat surface, the first rod and the second rod are connected by a fixing block, a first joint is arranged at the end of the left rod, a second joint is arranged at the end of the second rod, and a third joint is arranged in the fixing block; the second hole is connected to the first joint through a left hose, and the third hole is connected to the second joint or the third joint through a right hose.

[0014] Both the left rod and the first rod include a vertical rod and a horizontal rod, the horizontal rod is rotatably connected to the side cover, the horizontal rod is inserted into an installation hole in the side cover, and a horizontal hole and a vertical hole are opened on the side cover for a locking rod to be inserted; a rod hole is opened on the horizontal rod, when the rod hole aligns with the horizontal hole or the vertical hole, the locking rod can be inserted into the rod hole and the horizontal hole or the vertical hole, so as to detachably fix the horizontal rod and the side cover.

[0015] Preferably, the rod hole is parallel to the vertical rod.

[0016] Preferably, the rod hole is arranged at an angle with the vertical rod.

[0017] Preferably, the cross bar further includes a second rod hole.

[0018] Preferably, the left hose is connected to the first nozzle through the first joint.

[0019] Preferably, the right hose is connected to the second nozzle through the second joint.

[0020] Preferably, the right hose is connected to the second nozzle through the third joint.

[0021] Preferably, the main body is in the shape of a cuboid.

[0022] Preferably, the driving member is a motor.

[0023] Preferably, both the left hose and the right hose are made of rubber.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. Regarding the first point raised in the background art, through the organic combination of two flow control modules, the simulation of airflows with different heights, different directions, and different wind forces is achieved. For example, the simulation of ground wind and high-rise building wind is realized, and more functions are achieved through one device.

[0026] 2. Regarding the second point raised in the background art, through the design of the rotating rod, joints are provided on the rotating rod. After the airflow passes through the control device, it is connected to the joints through the hose, so as to simulate the descending wind and high-rise building wind through the height of the rotating rod. For example, by rotating the left and right rotating rods to the horizontal position, the airflow output spacing of the three through holes is enlarged, and at the same time, the simulated surrounding wind is blown.

[0027] 3. Regarding the third point raised in the background art, a circular hole is provided on the moving turntable to alternately communicate with the three output holes on the fixed disk (side cover), and an arc-shaped hole is also provided. The arc-shaped hole cannot surround the three output holes at the same time, but can surround two output holes at the same time to simulate a large range of airflow. The arc-shaped hole can interfere with the three output holes at the same time, but it cannot surround them. Thus, when interfering with the three output holes, the output holes on both sides can only output weak airflow, simulating the strong and weak airflow in the natural environment, rather than only outputting a strong airflow and having no airflow in other positions. There is no situation of no airflow in the natural environment. The two ends of the arc-shaped hole are straight lines, and the cooperation between the straight lines and the circular hole is conducive to calculating the area of the airflow, unlike the partial interference between circular holes, which makes it difficult to calculate the area of the airflow.

[0028] 4. Regarding the fourth point raised in the background art, only one main body is designed. The main body includes a base, an upper cover, and a side cover. The rotating rod is connected to the side cover, so as to integrate the two flow control modules of the turntable and the rotating rod onto one base module for fixation, saving space and cost;

[0029] The rotating rod will be detachably fixed at two rotating positions through the locking rod and the pin hole, so as to maintain stability during operation.

[0030] 5. Regarding the 5th point of the background art, a gas passage is formed by the enclosure between the base and the upper cover, and the gas passage only corresponds to a part of the holes on the turntable, so that the holes on each rotating disc will not all come into contact with the air flow, simplifying the fluid seal.

[0031] Note: The above designs are not in any particular order, and each one makes the present invention different and significantly improved compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below in conjunction with the drawings and embodiments.

[0033] Figure 1 is a schematic cross-sectional view of the main body of the air flow control device of the present invention;

[0034] Figure 2 is a schematic right view of the air flow control device of the present invention;

[0035] Figure 3 is a schematic front view of the air flow control device of the present invention;

[0036] Figure 4 is the present invention Figure 1 indicator diagram in the direction of A in;

[0037] Figure 5 is the present invention Figure 4 schematic diagram of rotating 180 degrees;

[0038] Figure 6 is a partial schematic diagram of the connection position of the rotating rod and the side cover of the present invention;

[0039] In the figure, the reference numerals are as follows:

[0040] 1. Main body 2. Driving member 3. Driving rod 4. Base 5. Upper cover 6. Side cover 7. Gas passage 8. Turntable 9. First hole 10. Air inlet 11. Second hole 12. Third hole 13. Left rod 14. First rod 15. Second rod 16. First joint 17. Third joint 18. Second joint 19. Fixed block 20. Vertical rod 21. Horizontal rod 22. Left hose 23. Right hose 24. First nozzle 25. Second nozzle 26. Round hole 27. Arc hole 28. Locking rod 29. Vertical hole 30. Horizontal hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] As shown in the figure: An air flow control device includes a main body, a driving member, a driving rod, a gas passage, a turntable, and a rotating rod; wherein the main body includes a base, an upper cover, and a side cover; the rotating rod includes a left rod and a right rod; the right rod includes a first rod and a second rod.

[0042] Wherein, the driving member rotates the driving rod, the driving rod passes through the base and is connected to the turntable, an upper cover is provided above the base, the upper cover, the turntable and the base enclose the gas passage, the side cover is connected to the base and the upper cover, the side cover abuts against the turntable, and an air inlet is formed in the upper cover;

[0043] The side cover includes a first hole, a second hole and a third hole; the second hole and the third hole are located on both sides of the first hole. The turntable includes a circular hole and an arc-shaped hole. The arc-shaped hole includes an arc surface and flat surfaces at both ends. When the arc-shaped hole communicates with the first hole, the second hole and the third hole at the same time, the flat surfaces at both ends are respectively located at positions where a part of the second hole and the third hole communicate;

[0044] The side cover includes a square plane, a left rod and a right rod are respectively arranged at two upper corners of the square plane, the first rod and the second rod are connected by a fixing block, a first joint is arranged at the end of the left rod, a second joint is arranged at the end of the second rod, and a third joint is arranged in the fixing block; the second hole is connected to the first joint through a left hose, and the third hole is connected to the second joint or the third joint through a right hose;

[0045] Both the left rod and the first rod include a vertical rod and a horizontal rod. The horizontal rod is rotatably connected to the side cover. The horizontal rod is inserted into a mounting hole in the side cover. A transverse hole and a vertical hole are formed in the side cover for a locking rod to be inserted; a rod hole is formed in the horizontal rod. When the rod hole is aligned with the transverse hole or the vertical hole, the locking rod can be inserted into the rod hole and the transverse hole or the vertical hole, so as to detachably fix the horizontal rod to the side cover.

[0046] As shown in the figure: the rod hole is parallel to the vertical rod. The rod hole is arranged at an angle with the vertical rod. A second rod hole is further included in the horizontal rod. The left hose is connected to a first nozzle through a first joint. The right hose is connected to a second nozzle through a second joint. The right hose is connected to a second nozzle through a third joint. The main body is in the shape of a cuboid. The driving member is a motor. Both the left hose and the right hose are made of rubber.

[0047] The above detailed description is a specific description of the feasible embodiments of the present invention, and this embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification without departing from the present invention shall be included in the patent scope of this case.

Claims

1. An air flow control device, characterized in that: it includes a main body, a driving member, a driving rod, a gas passage, a turntable, and a rotating rod; wherein the main body includes a base, an upper cover, and a side cover; the rotating rod includes a left rod and a right rod; the right rod includes a first rod and a second rod; wherein, the driving member causes the driving rod to rotate, the driving rod passes through the base and is connected to the turntable, the upper cover is provided above the base, the upper cover, the turntable and the base enclose the gas passage, the side cover is connected to the base and the upper cover, the side cover abuts against the turntable, and an air inlet is provided on the upper cover; the side cover includes a first hole, a second hole, and a third hole; the second hole and the third hole are located on both sides of the first hole, the turntable includes a round hole and an arc-shaped hole, the arc-shaped hole includes an arc surface and flat surfaces at both ends, when the arc-shaped hole communicates with the first hole, the second hole, and the third hole at the same time, the flat surfaces at both ends are respectively located at positions where a part of the second hole and the third hole communicates; the side cover includes a square plane, the left rod and the right rod are respectively provided at two upper corners of the square plane, the first rod and the second rod are connected by a fixing block, a first joint is provided at the end of the left rod, a second joint is provided at the end of the second rod, and a third joint is provided in the fixing block; the second hole is connected to the first joint through a left hose, and the third hole is connected to the second joint or the third joint through a right hose; both the left rod and the first rod include a vertical rod and a horizontal rod, the horizontal rod is rotatably connected to the side cover, the horizontal rod is inserted into a mounting hole in the side cover, and a horizontal hole and a vertical hole are provided on the side cover for a locking rod to be inserted; a rod hole is provided on the horizontal rod, when the rod hole aligns with the horizontal hole, the locking rod can be inserted into the rod hole and the horizontal hole, and when the rod hole aligns with the vertical hole, the locking rod can be inserted into the rod hole and the vertical hole, so as to detachably fix the horizontal rod and the side cover.

2. An air flow control device according to claim 1, characterized in that: the rod hole is parallel to the vertical rod.

3. An air flow control device according to claim 1, characterized in that: the rod hole is arranged at an angle with the vertical rod.

4. An air flow control device according to claim 1, characterized in that: the horizontal rod further includes a second rod hole.

5. An air flow control device according to claim 1, characterized in that: the left hose is connected to a first nozzle through the first joint.

6. An air flow control device according to claim 1, characterized in that: the right hose is connected to a second nozzle through the second joint.

7. An air flow control device according to claim 1, characterized in that: the right hose is connected to a second nozzle through the third joint.

8. An air flow control device according to claim 1, characterized in that: the main body is in the shape of a cuboid.

9. An air flow control device according to claim 1, characterized in that: the driving member is a motor.

10. An air flow control device according to claim 1, characterized in that: both the left hose and the right hose are made of rubber.

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