A wind speed monitoring device for wind tunnel laboratory

Abstract

This invention discloses a wind speed monitoring device for a wind tunnel laboratory, comprising a base, a support column, a groove, a circular plate, a wind speed sensor, and a housing. The base has bolt holes at its top, the groove is located at the top of the support column, and the top of the circular plate is connected to the wind speed sensor. The housing is movably connected to the outside of the support column, and a limiting groove communicating with the inside of the groove is located on the outside of the support column. A rotating shaft is movably connected to the top wall of the housing's inner cavity, and a limiting block passing through the limiting groove is connected to the outside of the rotating shaft. The upper and lower sides of the limiting block are in contact with the inner wall of the limiting groove, and the bottom of the limiting block is tightly fitted to the top of the circular plate. A gear ring is connected to the side wall of the housing's inner cavity, and a gear located below the limiting block and meshing with the inner side of the gear ring is sleeved on the outside of the rotating shaft. The wind speed monitoring device designed in this invention is easy to assemble and disassemble, solving the problem of inconvenient maintenance in existing wind speed monitoring devices.

Description

Technical Field

[0001] This invention relates to the field of wind tunnel laboratory auxiliary equipment technology, and in particular to a wind speed monitoring device for wind tunnel laboratories. Background Technology

[0002] Wind tunnel testing is an important method for conducting aerodynamic analysis and providing relevant parameters. The method involves simulating real wind fields using artificially generated airflow in a wind tunnel, conducting force and pressure tests, and other simulation experiments to obtain relevant parameters, which are then used for further mechanical analysis. Wind tunnel testing has wide applications in aircraft research, building analysis and design, and is one of the most commonly used and effective tools for aerodynamic experiments. It is also an indispensable component of aircraft development, playing a crucial role not only in aerospace engineering research and development but also, with the development of industrial aerodynamics, in transportation, building construction, and wind energy utilization. Compared to other research methods, wind tunnel testing offers precise control of test conditions, provides intuitive and reliable results, is less affected by environmental factors, and is low-cost, efficient, and safe. During experiments, models or physical objects are often fixed in the wind tunnel and repeatedly exposed to airflow. Experimental data is obtained through measuring and control instruments and equipment. To better monitor the wind speed in the wind tunnel laboratory, auxiliary wind speed monitoring devices are required.

[0003] In the prior art, such as Chinese patent CN214845349U, a wind speed measuring device for bridge health monitoring is disclosed. This device includes a mounting frame, a rotating column rotatably connected to the mounting frame, and a wind cup fixed to the rotating column. A sleeve is fixedly mounted on the mounting frame, and a first damping plate is fixedly mounted at the bottom of the sleeve. The rotating column is rotatably connected to the sleeve, and a fixed seat and a movable seat are mounted on the rotating column. The fixed seat is fixedly connected to the rotating column, and the movable seat is slidably connected to the rotating column along its axis. Several connecting rod assemblies are arranged between the fixed seat and the movable seat, and each connecting rod assembly is circumferentially distributed on the outer side of the rotating column. Each connecting rod assembly includes a first pendulum and a second pendulum. One end of the first pendulum is hinged to the fixed seat, and the other end of the first pendulum is hinged to one end of the second pendulum. The other end of the second pendulum is hinged to the movable seat. A speed sensor is arranged between the rotating column and the sleeve. This invention improves the efficiency of the wind speed measuring device and extends its service life. The only drawback is that most of the components of this utility model are fixedly connected, making it inconvenient to disassemble and assemble the wind speed measuring device. During maintenance, multiple bolts need to be removed, which is time-consuming and laborious. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a wind speed monitoring device for wind tunnel laboratories, which makes the wind speed measuring device easy to disassemble.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A wind speed monitoring device for a wind tunnel laboratory includes a base, a support column, and a wind speed sensor. The support column has a groove at its top, the wind speed sensor is connected to the top of a circular plate, a housing is movably connected to the outside of the support column, a limiting groove communicating with the inside of the groove is provided on the outside of the support column, a rotating shaft is movably connected to the top wall of the inner cavity of the housing, the rotating shaft passes through a connecting hole provided on a limiting block in the limiting groove, the bottom of the limiting block can fit against the top of the circular plate, a toothed ring is provided on the side wall of the inner cavity of the housing, and a gear that engages with the toothed ring is provided on the rotating shaft below the limiting block.

[0007] Furthermore, a wind speed monitoring device for a wind tunnel laboratory also includes a movable plate and a second spring. A first spring is provided below the movable plate. An annular positioning groove is provided at the bottom of the circular plate. A first toothed disc is connected inside the annular positioning groove. A ring is connected to the top of the movable plate. A second toothed disc that meshes with the bottom of the first toothed disc is connected to the top of the ring. An annular locking block is connected to the top of the second spring.

[0008] Furthermore, two vertical rods are connected to the bottom of the groove cavity, and an annular block is connected inside the groove. The outer sides of the two vertical rods are movably connected to a movable plate and a first spring. The top of the annular block is movably connected to a circular plate. The ring extends to the inner side of the annular block. An annular groove is formed at the bottom of the circular plate, and an annular groove is formed at the top of the annular block. The inside of the annular groove is connected to a second spring. The annular block extends into the annular groove. A transmission line is electrically connected to the bottom of the wind speed sensor.

[0009] Furthermore, the movable plate has a through hole in the middle located outside the transmission line, the movable plate has sliding holes on both sides located outside the vertical rod, and the circular plate has a through hole on the top located outside the transmission line.

[0010] Furthermore, mounting holes are provided on both the upper and lower sides of the housing, and a first bearing that is sleeved on the outside of the support column is connected inside the mounting holes; a connecting hole located on the outside of the rotating shaft is provided on the top wall of the inner cavity of the housing, and a second bearing that is sleeved on the outside of the rotating shaft is provided inside the connecting hole.

[0011] Furthermore, the support column is internally connected to an elastic sleeve extending into the groove, and the elastic sleeve is a rubber block.

[0012] Furthermore, the number of the rotating shafts is no less than four.

[0013] Furthermore, the outer side of the housing is a rough surface.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This invention relates to a wind speed monitoring device for a wind tunnel laboratory. The outer side of the housing is roughened to increase friction. When the wind speed sensor needs to be disassembled, the housing is rotated clockwise, causing the gear ring to rotate clockwise. The gear ring then drives the gear to rotate clockwise, which in turn drives the shaft to rotate clockwise. The shaft continues to drive the limiting block to rotate clockwise, eventually disengaging the bottom of the inner side of the limiting block from the top of the circular plate. This allows the circular plate to disengage from the annular block. By lifting the wind speed sensor upwards, the wind speed sensor and the circular plate can be separated from the other components, thus completing the disassembly. When the wind speed sensor needs to be installed, the wind speed sensor is pressed down so that the bottom of the circular plate on the wind speed sensor is in contact with the top of the annular block. The housing is then rotated counterclockwise, causing the gear ring to rotate counterclockwise, which in turn drives the gear to rotate counterclockwise. The gear then drives the shaft to rotate counterclockwise, which continues to drive the limiting block to rotate counterclockwise. Finally, the bottom of the inner side of the limiting block contacts the top of the circular plate, allowing the limiting block to lock the circular plate in place, thus completing the installation. With this design, the wind speed sensor can be separated from the other components simply by rotating the housing, making maintenance and repair of each component very convenient, greatly improving maintenance efficiency and reducing wear and tear.

[0016] 2. This invention discloses a wind speed monitoring device for a wind tunnel laboratory. After the wind speed sensor and circular plate are installed, a second spring presses against an annular locking block, which in turn presses against the circular plate, ensuring a tight fit between the top of the circular plate and the bottom of a limiting block, preventing the wind speed sensor and the circular plate from shifting vertically. Simultaneously, a first spring presses against a movable plate, which in turn presses against a ring, which in turn presses against a second geared disc, which in turn presses against a first geared disc, maintaining a tight mesh between the two discs and preventing rotation of the wind speed sensor and the circular plate. The device incorporates at least four rotating shafts to ensure greater stability during rotation. A first spring is wound around a vertical rod to prevent movement. These methods ensure a tighter fit between the components, significantly improving the stability of the device and resulting in more accurate wind speed measurements.

[0017] 3. The wind speed monitoring device for a wind tunnel laboratory designed in this invention uses rubber as the material for the elastic sleeve. Rubber is elastic at room temperature and can undergo large deformation under a small external force, returning to its original shape after the external force is removed. It is a highly elastic polymer material with reversible deformation. Using rubber as the elastic sleeve material can better fix the transmission line, preventing it from being affected by vibration interference, thereby making the measured data more accurate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a wind speed monitoring device for use in a wind tunnel laboratory.

[0019] Figure 2A cross-sectional view of the structure of a wind speed monitoring device for a wind tunnel laboratory;

[0020] Figure 3 A top view of a limiting block during the operation of a wind speed monitoring device for a wind tunnel laboratory;

[0021] Figure 4 A top view of a limiting block during the disassembly of a wind speed monitoring device for a wind tunnel laboratory;

[0022] Figure 5 This is a schematic diagram of the toothed ring and gear structure of a wind speed monitoring device for a wind tunnel laboratory.

[0023] In the diagram: 1. Base; 2. Support column; 3. Groove; 4. Vertical rod; 5. Annular block; 6. Movable plate; 7. First spring; 8. Circular plate; 9. Wind speed sensor; 10. Annular positioning groove; 11. First gear plate; 12. Ring sleeve; 13. Second gear plate; 14. Annular groove; 15. Annular slot; 16. Second spring; 17. Annular block; 18. Elastic sleeve; 19. Transmission line; 20. Housing; 21. Limiting groove; 22. Rotating shaft; 23. Limiting block; 24. Gear ring; 25. Gear; 26. Mounting hole; 27. First bearing; 28. Connecting hole; 29. ​​Second bearing; 30. Through hole; 31. Sliding hole; 32. Perforation. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments are described below, with reference to the accompanying drawings. Figure 1-5 The technical solution of the present invention will be clearly and completely described.

[0025] A wind speed monitoring device for a wind tunnel laboratory includes a base 1, a support column 2 fixedly connected to the top of the base 1, a groove 3 formed on the top of the support column 2, two vertical rods 4 fixedly connected to the bottom of the inner cavity of the groove 3, bolt holes on the top of the base 1, the vertical rods 4 being symmetrically distributed left and right, annular blocks 5 fixedly connected to the top of the vertical rods 4 inside the groove 3, and the outer sides of both vertical rods 4 being movably connected to a movable plate 6. A through hole 30 located outside a transmission line 19 is formed on the top of the movable plate 6, and a sliding hole 31 located outside the vertical rods 4 is formed on the top of the movable plate 6. A sliding hole 31 located outside the vertical rods 4 is movably connected to the outer side of the movable plate 6. The first spring 7 is located below. A circular plate 8 is movably connected to the top of the annular block 5. A wind speed sensor 9 is fixedly connected to the top of the circular plate 8. An annular positioning groove 10 is formed at the bottom of the circular plate 8. A first gear 11 is fixedly connected inside the annular positioning groove 10. A ring sleeve 12 extending to the inner side of the annular block 5 is fixedly connected to the top of the movable plate 6. A second gear 13 meshing with the bottom of the first gear 11 is fixedly connected to the top of the ring sleeve 12. An annular groove 15 is formed at the bottom of the circular plate 8. An annular groove 14 is formed at the top of the annular block 5. A second spring 16 is fixedly connected inside the annular groove 14. An annular locking block 17 extending into the annular groove 15 is fixedly connected to the top of the second spring 16. An elastic sleeve 18 extending into the groove 3 is fixedly connected inside the support column 2. A transmission line 19 passing through the circular plate 8 and the movable plate 6 and through the elastic sleeve 18 is electrically connected to the bottom of the wind speed sensor 9. A through hole 32 located outside the transmission line 19 is formed at the top of the circular plate 8. Extending above the support column 2, a housing 20 is movably connected to the outer side of the support column 2. The outer side of the housing 20 has a rough surface. The ring sleeve 12 is located outside the transmission line 19. The elastic sleeve 18 is a rubber block. The outer side of the support column 2 has equidistantly distributed limiting grooves 21 that communicate with the inside of the groove 3. The inner cavity top wall of the housing 20 is movably connected to equidistantly distributed rotating shafts 22, with no fewer than four rotating shafts 22. Mounting holes 26 are provided on both the upper and lower sides of the housing 20. The first bearing 27, which is sleeved on the outer side of the support column 2, is fixedly connected inside the mounting holes 26. The rotating shaft 22 passes through the connecting hole 26 of the limiting block 23 provided in the limiting groove 21. The inner cavity top wall of the housing 20 has a connecting hole 28 located outside the rotating shaft 22. The connecting hole 28 is fixedly connected to the rotating shaft 22. The second bearing 29 is sleeved on the outside. A toothed ring 24 is fixedly connected to the inner wall of the housing 20. The upper and lower sides of the limiting block 23 are in contact with the inner wall of the limiting groove 21. The bottom of the limiting block 23 is tightly fitted with the top of the circular plate 8. A gear 25 that works with the toothed ring 24 is provided on the rotating shaft 22 below the limiting block 23.

[0026] When it is necessary to disassemble the wind speed sensor 9, rotate the housing 20 clockwise. The housing 20 drives the gear ring 24 to rotate clockwise, the gear ring 24 drives the gear 25 to rotate clockwise, the gear 25 drives the rotating shaft 22 to rotate clockwise, and the rotating shaft 22 continues to drive the limiting block 23 to rotate clockwise. Finally, the bottom of the inner side of the limiting block 23 is disengaged from the top of the circular plate 8, so that the circular plate 8 can be disengaged from the annular block 5. By lifting the wind speed sensor 9 upward, the wind speed sensor 9 and the circular plate 8 can be separated from the other components, and the disassembly is completed.

[0027] When the wind speed sensor 9 needs to be installed, press down the wind speed sensor 9 so that the bottom of the circular plate 8 on the wind speed sensor 9 fits against the top of the annular block 5. By rotating the housing 20 counterclockwise, the housing 20 drives the gear ring 24 to rotate counterclockwise, the gear ring 24 drives the gear 25 to rotate counterclockwise, the gear 25 then drives the rotating shaft 22 to rotate counterclockwise, and the rotating shaft 22 continues to drive the limiting block 23 to rotate counterclockwise. Finally, the bottom of the inner side of the limiting block 23 contacts the top of the circular plate 8, so that the limiting block 23 can lock the circular plate 8, and the installation is completed.

[0028] After the wind speed sensor 9 and the circular plate 8 are installed, the first spring 7 presses the movable plate 6, the movable plate 6 presses the ring sleeve 12, the ring sleeve 12 presses the second toothed disc 13, and the second toothed disc 13 presses the first toothed disc 11, so that the second toothed disc 13 and the first toothed disc 11 are tightly engaged, which can prevent the wind speed sensor 9 and the circular plate 8 from shifting up and down; at the same time, the second spring 16 presses the annular locking block 17, and the annular locking block 17 presses the circular plate 8, so that the top of the circular plate 8 fits more tightly with the bottom of the limiting block 23, thereby preventing the wind speed sensor 9 and the circular plate 8 from rotating. Through the above method, the fit between the components is tighter, the stability of the device is greatly improved, and the measured wind speed data is more accurate.

[0029] The working principle of this invention is as follows: When the wind speed sensor 9 needs to be disassembled, the housing 20 is rotated clockwise. The housing 20 drives the gear ring 24 to rotate clockwise, which in turn drives the gear 25 to rotate clockwise. The gear 25 then drives the rotating shaft 22 to rotate clockwise. The rotating shaft 22 continues to drive the limiting block 23 to rotate clockwise, finally causing the bottom of the inner side of the limiting block 23 to disengage from the top of the circular plate 8, thereby allowing the circular plate 8 to disengage from the annular block 5. By lifting the wind speed sensor 9 upward, the wind speed sensor 9 and the circular plate 8 can be separated from the other components, thus completing the disassembly. When the wind speed sensor 9 needs to be installed, the wind speed sensor 9 is pressed down, causing the bottom of the circular plate 8 on the wind speed sensor 9 to fit against the top of the annular block 5. By rotating the housing 20 counterclockwise, the housing 20 drives the gear ring 24 to rotate counterclockwise, which in turn drives the gear 25 to rotate counterclockwise. Then, the rotating shaft 22 is driven to rotate counterclockwise, and the rotating shaft 22 continues to drive the limiting block 23 to rotate counterclockwise. Finally, the bottom of the inner side of the limiting block 23 contacts the top of the circular plate 8, so that the limiting block 23 can lock the circular plate 8, and the installation is completed. After the wind speed sensor 9 and the circular plate 8 are installed, the first spring 7 presses the movable plate 6, the movable plate 6 presses the ring sleeve 12, the ring sleeve 12 presses the second toothed disc 13, and the second toothed disc 13 presses the first toothed disc 11, so that the second toothed disc 13 and the first toothed disc 11 are tightly meshed, which can prevent the wind speed sensor 9 and the circular plate 8 from shifting up and down. At the same time, the second spring 16 presses the annular locking block 17, and the annular locking block 17 presses the circular plate 8, so that the top of the circular plate 8 is more tightly fitted to the bottom of the limiting block 23, thereby preventing the wind speed sensor 9 and the circular plate 8 from rotating. Through the above methods, the wind speed monitoring device can be made more stable.

[0030] This invention solves the problem in existing technologies where wind speed monitoring devices used in wind tunnel laboratories are inconvenient to disassemble and assemble, requiring the removal of multiple bolts during maintenance, resulting in time-consuming and labor-intensive disassembly and assembly. The wind speed monitoring device designed in this invention allows the wind speed sensor to be separated from the other components simply by rotating the housing, making maintenance and repair of each component extremely convenient, greatly improving maintenance efficiency and reducing wear and tear.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should all be considered within the scope of protection of the present invention.

Claims

1. A wind speed monitoring device for a wind tunnel laboratory, comprising a base (1), a support column (2), and a wind speed sensor (9), characterized in that, The support column (2) has a groove (3) at its top. The wind speed sensor (9) is connected to the top of the circular plate (8). The support column (2) is movably connected to a housing (20). The support column (2) has a limiting groove (21) on its outer side that communicates with the inside of the groove (3). The housing (20) has a rotating shaft (22) movably connected to the top wall of its inner cavity. The rotating shaft (22) passes through a connecting hole (28) on a limiting block (23) in the limiting groove (21). The bottom of the limiting block (23) can fit against the top of the circular plate (8). The housing (20) has a toothed ring (24) on its inner side wall. The rotating shaft (22) has a gear (25) below the limiting block (23) that works with the toothed ring (24). The support column (22) also includes a movable plate (6) and a second spring (16). The movable plate (6) has a first spring (7) below it. The circular plate (8) has an annular positioning groove (10) at its bottom. The annular positioning groove (10) contains... The first toothed disc (11) is connected to the top of the movable plate (6), and a ring sleeve (12) is connected to the top of the ring sleeve (12). A second toothed disc (13) that meshes with the bottom of the first toothed disc (11) is connected to the top of the second spring (16). An annular locking block (17) is connected to the top of the second spring (16). Two vertical rods (4) are connected to the bottom of the inner cavity of the groove (3). An annular block (5) is connected inside the groove (3). The outer sides of the two vertical rods (4) are movably connected to the movable plate (6) and the first spring (7). The top of the annular block (5) is movably connected to the circular plate (8). The ring sleeve (12) extends to the inner side of the annular block (5). An annular slot (15) is opened at the bottom of the circular plate (8). An annular groove (14) is opened at the top of the annular block (5). The inside of the annular groove (14) is connected to the second spring (16). The annular locking block (17) extends to the inside of the annular slot (15). A transmission line (19) is electrically connected to the bottom of the wind speed sensor (9).

2. The wind speed monitoring device for a wind tunnel laboratory according to claim 1, characterized in that, The movable plate (6) has a through hole (30) in the middle located outside the transmission line (19), and sliding holes (31) are provided on both sides of the movable plate (6) located outside the vertical rod (4). The circular plate (8) has a through hole (32) on the top located outside the transmission line (19).

3. The wind speed monitoring device for a wind tunnel laboratory according to claim 1, characterized in that, The housing (20) has mounting holes (26) on both the upper and lower sides. The mounting holes (26) are connected to a first bearing (27) that is sleeved on the outside of the support column (2). The inner cavity top wall of the housing (20) has a connecting hole (28) located on the outside of the rotating shaft (22). The connecting hole has a second bearing (29) that is sleeved on the outside of the rotating shaft (22).

4. The wind speed monitoring device for a wind tunnel laboratory according to claim 1, characterized in that, The support column (2) is internally connected to an elastic sleeve (18) extending into the groove (3), and the elastic sleeve (18) is a rubber block.

5. The wind speed monitoring device for a wind tunnel laboratory according to claim 1, characterized in that, The number of the rotating shafts (22) is no less than four.

6. The wind speed monitoring device for a wind tunnel laboratory according to claim 1, characterized in that, The outer side of the housing (20) is rough.

Images