Interactive blowing type wind measuring device

Abstract

The utility model discloses an interactive blowing type wind measuring device, and relates to the technical field of wind measuring devices. The device comprises a measurement box, a blowing nozzle is arranged on one side of the measurement box, a display screen is arranged on one side of the measurement box, a detection assembly is arranged in the measurement box, and the detection assembly comprises an airflow straight pipe fixedly connected in the measurement box. According to the utility model, the visual measurement box is constructed through the transparent acrylic material, a cooperative detection structure of the differential pressure sensor and the Venturi tube is combined, the teaching demonstration effect is significantly improved, the display screen is matched to display numerical wind speed data of differential pressure conversion in real time, and the honeycomb rectifier is matched with the stainless steel filter screen to realize accurate conversion from turbulent flow to laminar flow. The micro-airflow detection sensitivity is effectively improved, compared with a traditional mechanical anemograph, the detection precision is improved, the plug-pull type blowpipe assembly adopts a double-closed-ring sealing structure, the air tightness is guaranteed, quick disassembly and replacement can be achieved, and the requirement for repeated use by multiple persons is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wind measuring device, especially, relate to an interactive blowing type wind measuring device. BACKGROUND

[0002] With the rapid development of meteorological science, meteorological education and popular science activities become increasingly important, especially in the basic education stage, through the appropriate equipment to help students understand the air flow, wind speed and its influencing factors, not only can improve the students' interest in meteorology, but also can cultivate their scientific literacy, however, in the current primary and secondary meteorological popular science education, traditional wind measuring instrument (such as mechanical anemometer, ultrasonic anemometer) there are principle abstract, strong professional, complex operation and high cost problems.

[0003] The wind speed meter used in teaching adopts mechanical wind speed sensor and ultrasonic anemometer, they have direct reading, shielding measurement principle, poor visualization effect and other problems, at the same time, mechanical wind speed sensor has inertia delay and is not sensitive to small changes in wind speed, lacks the ability to capture subtle airflow changes, while ultrasonic anemometer also has high price, and the precision probe is easy to be damaged by collision, not suitable for students to operate frequently. Therefore, we provide an interactive blowing type wind measuring device to solve the above problems. UTILITARIAN CONTENT

[0004] The utility model aims at providing an interactive blowing type wind measuring device, which solves the problems of shielding measurement principle, poor visualization effect, inertia delay of mechanical sensor and weak subtle airflow capturing ability in the prior art through the cooperation of the detection assembly and the plug-in assembly.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes.

[0006] The utility model relates to an interactive blowing type wind measuring device, which comprises a measuring box, a blow nozzle arranged on one side of the measuring box, a display screen arranged on one side of the measuring box, a detection assembly arranged inside the measuring box, the detection assembly comprising an airflow straight pipe fixedly connected to the inside of the measuring box, a Venturi tube communicated with one end of the airflow straight pipe, an exhaust pipe communicated with the other end of the Venturi tube, a conveying pipe communicated with the bottom of the airflow straight pipe and the Venturi tube, a pressure box communicated with one side of the conveying pipe, and a differential pressure sensor fixedly connected to the inside of the pressure box, a plug-in assembly arranged on one side of the blow nozzle, the plug-in assembly comprising a hard pipe communicated with the other end of the airflow straight pipe, a first tight ring fixedly connected to the inside of the hard pipe, a second tight ring inserted into the inside of the hard pipe, and a blow pipe fixedly connected to the inside of the second tight ring.

[0007] The present invention is further configured such that the measuring box and the pressure box are made of transparent acrylic sheets, and a data processing device is fixedly connected inside the measuring box.

[0008] The present invention is further configured such that an exhaust channel is provided at the end of the measuring box away from the airflow straight pipe, and the number of the conveying pipes is two.

[0009] The present invention is further configured such that a honeycomb rectifier is fixedly connected inside the airflow straight pipe and on the side close to the rigid pipe, and a stainless steel filter screen is fixedly connected inside the honeycomb rectifier.

[0010] The present invention is further configured such that one end of the rigid tube is connected to a gas delivery hose, and the end of the gas delivery hose away from the rigid tube is connected to the gas flow straight tube.

[0011] The present invention is further configured such that a limiting plate is fixedly connected to one side of the measuring box, a limiting groove is formed inside the limiting plate, a fixing plate is inserted inside the limiting groove, and the fixing plate is fixedly connected to the display screen.

[0012] The present invention is further configured such that a Bluetooth transmission module is provided inside the display screen, a handle is fixedly connected to the surface of the rigid tube, and the blower tube is fixedly connected to the mouthpiece.

[0013] The present invention has the following beneficial effects.

[0014] 1. This utility model constructs a visual measurement box using transparent acrylic material, and combines a differential pressure sensor and a venturi tube collaborative detection structure, which significantly improves the teaching demonstration effect. The display screen shows the numerical wind speed data converted from differential pressure in real time. The honeycomb rectifier and stainless steel filter achieve accurate conversion from turbulent flow to laminar flow, effectively improving the detection sensitivity of micro airflow. Compared with traditional mechanical anemometers, the detection accuracy is improved. The plug-in blower assembly adopts a double tight closed-loop sealing structure, which not only ensures airtightness but also allows for quick disassembly and replacement, meeting the needs of multiple people for repeated use.

[0015] 2. This utility model innovatively integrates a blowing interaction mode with a data processing module to create an immersive science popularization experience. Through an ergonomically designed handle and mouthpiece assembly, children can independently control airflow parameters by blowing force. With the help of a Bluetooth module, real-time wind speed data can be synchronized to a mobile terminal for curve analysis. The parallel design of the dual delivery pipes and pressure box improves the stability of differential pressure detection. Combined with the algorithm optimization of the embedded data processing device, the modular structure design allows for quick assembly and disassembly of components such as the display screen and blowing pipe. With the limit plate buckle mechanism, it is easy to pick up and put down the display screen at any time.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional view of an interactive air-blowing anemometer.

[0019] Figure 2 This is a cross-sectional view of the measuring box in an interactive air-blowing anemometer.

[0020] Figure 3 This is a cross-sectional view of the airflow straight pipe and venturi tube in an interactive blowing anemometer.

[0021] Figure 4 This is a cross-sectional view of a rigid tube in an interactive air-blowing anemometer.

[0022] Figure 5 This is a front view of the limiting plate and the fixing plate in an interactive air-blowing anemometer.

[0023] In the attached diagram: 1. Measuring box; 2. Nozzle; 3. Display screen; 4. Straight airflow pipe; 5. Venturi tube; 6. Exhaust pipe; 7. Delivery pipe; 8. Pressure box; 9. Differential pressure sensor; 10. Rigid tube; 11. First closed loop; 12. Second closed loop; 13. Air blowing pipe; 14. Data processing device; 15. Honeycomb rectifier; 16. Air delivery hose; 17. Limiting plate; 18. Fixing plate; 19. Handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figures 1-5This utility model relates to an interactive air-blowing anemometer, comprising a measuring box 1, a nozzle 2 on one side of the measuring box 1, a display screen 3 on the other side of the measuring box 1, and a detection component inside the measuring box 1. The detection component includes an airflow straight pipe 4 fixedly connected inside the measuring box 1, and a Venturi tube 5 connected to one end of the airflow straight pipe 4. The Venturi tube 5 is designed as a narrow pipe structure in the middle. When a user blows air into the airflow straight pipe 4 through the nozzle 2, the airflow velocity increases as it passes through the narrow throat of the Venturi tube 5, causing a decrease in static pressure (Bernoulli's principle). The pressure difference between the inlet (wide section) and the throat (narrow section) of the Venturi tube 5 is transmitted to a pressure box 8 via a lower delivery pipe 7, and is detected in real time by a differential pressure sensor 9. The device also includes an exhaust pipe 6 connected to the other end of the Venturi tube 5, a delivery pipe 7 connecting the bottom of the airflow straight pipe 4 and the Venturi tube 5, a pressure box 8 connected to one side of the delivery pipe 7, and a differential pressure sensor 9 fixedly connected inside the pressure box 8. The measurement component is set up so that the wind speed is calculated by using the dynamic pressure difference generated by the airflow in the contraction section through the cooperation of the venturi tube 5 and the differential pressure sensor 9. A plug-in assembly is set on one side of the nozzle 2. The plug-in assembly includes a rigid tube 10 connected to the other end of the airflow straight tube 4, a first tight-closed ring 11 fixedly connected inside the rigid tube 10, a second tight-closed ring 12 inserted inside the rigid tube 10, and a blower tube 13 fixedly connected inside the second tight-closed ring 12. With the setting of the plug-in assembly, the nozzle 2 (which can be sterilized and replaced at high temperature) is used to achieve quick replacement of the nozzle 2 through the double tight-closed ring structure.

[0027] Example 2

[0028] Please see Figures 1-5Based on Example 1, the measuring box 1 and pressure box 8 are made of transparent acrylic sheets. A data processing device 14 is fixedly connected inside the measuring box 1. The transparent acrylic material allows the operator to observe the internal structure, facilitating understanding of the principles and improving the educational effect. The data processing device 14 is used to process wind measurement data. An exhaust duct is provided at the end of the measuring box 1 away from the airflow straight pipe 4. There are two delivery pipes 7, which are used to facilitate airflow in the pressure box 8. A honeycomb rectifier 15 is fixedly connected inside the airflow straight pipe 4 and on the side near the rigid pipe 10. A stainless steel filter is fixedly connected inside the honeycomb rectifier 15. The honeycomb rectifier 15 is used to achieve turbulent-laminar flow. The conversion is to improve the detection accuracy of the differential pressure sensor 9. One end of the rigid tube 10 is connected to the air supply hose 16, and the end of the air supply hose 16 away from the rigid tube 10 is connected to the airflow straight pipe 4. The air supply hose 16 is used to connect the airflow straight pipe 4 and the rigid tube 10. A limiting plate 17 is fixedly connected to one side of the measuring box 1. A limiting groove is opened inside the limiting plate 17, and a fixing plate 18 is inserted inside the limiting groove. The fixing plate 18 is fixedly connected to the display screen 3. The setting of the limiting plate 17 and the fixing plate 18 facilitates quick disassembly and installation of the display screen 3. The display screen 3 is equipped with a Bluetooth transmission module. A handle 19 is fixedly connected to the surface of the rigid tube 10. The blowing pipe 13 is fixedly connected to the mouthpiece 2. The handle 19 is used to pick up the rigid tube 10 when blowing air.

[0029] The working principle of this utility model is as follows: The user picks up the mouthpiece 2 and the rigid tube 10, inserts the blow tube 13 on the mouthpiece 2 into the interior of the rigid tube 10, and after insertion, the first sealing ring 11 and the second sealing ring 12 seal the interior of the rigid tube 10 to prevent the blown air from being lost. When blowing air, the display screen 3 is removed from the measuring box 1 and placed in front of the person blowing air.

[0030] The user blows air through the mouthpiece 2, and the airflow enters the rigid tube 10 through the air blowing tube 13 in the plug-in assembly. It is then introduced into the airflow straight tube 4 through the air delivery hose 16. The airflow first passes through the honeycomb rectifier 15 and the stainless steel filter, which converts the turbulence into stable laminar flow and eliminates airflow disturbance. The laminar airflow enters the Venturi tube 5. Due to the Venturi effect, a dynamic pressure difference is formed in the contraction section. The pressure box 8 collects the pressure difference signal through the delivery pipe 7. The pressure difference sensor 9 detects the pressure difference value in real time. The pressure difference signal is transmitted to the data processing device 14, which converts the pressure difference into a wind speed value through a preset algorithm. The calculated wind speed value and the corresponding Beaufort scale are displayed on the display screen 3. The data can also be transmitted to an external large screen for viewing via the Bluetooth transmission module.

[0031] 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 interactive air-blowing anemometer, comprising a measuring box (1), characterized in that: A nozzle (2) is provided on one side of the measuring box (1), and a display screen (3) is provided on one side of the measuring box (1). The measuring box (1) is equipped with a detection component, which includes an airflow straight pipe (4) fixedly connected inside the measuring box (1), a Venturi tube (5) connected to one end of the airflow straight pipe (4), an exhaust pipe (6) connected to the other end of the Venturi tube (5), a delivery pipe (7) connected to the bottom of the airflow straight pipe (4) and the Venturi tube (5), a pressure box (8) connected to one side of the delivery pipe (7), and a differential pressure sensor (9) fixedly connected inside the pressure box (8). The nozzle (2) is provided with a plug-in assembly on one side. The plug-in assembly includes a rigid tube (10) connected to the other end of the airflow straight tube (4), a first tight-closed ring (11) fixedly connected inside the rigid tube (10), a second tight-closed ring (12) inserted inside the rigid tube (10), and a blower tube (13) fixedly connected inside the second tight-closed ring (12).

2. The interactive air-blowing anemometer device according to claim 1, characterized in that: The measuring box (1) and the pressure box (8) are made of transparent acrylic sheets, and a data processing device (14) is fixedly connected inside the measuring box (1).

3. The interactive air-blowing anemometer device according to claim 1, characterized in that: The measuring box (1) has an exhaust channel at one end away from the airflow straight pipe (4), and there are two delivery pipes (7).

4. The interactive air-blowing anemometer device according to claim 1, characterized in that: A honeycomb rectifier (15) is fixedly connected inside the airflow straight pipe (4) and on the side close to the rigid pipe (10), and a stainless steel filter screen is fixedly connected inside the honeycomb rectifier (15).

5. An interactive air-blowing anemometer according to claim 1, characterized in that: One end of the rigid tube (10) is connected to a gas delivery hose (16), and the end of the gas delivery hose (16) away from the rigid tube (10) is connected to the gas flow straight tube (4).

6. The interactive air-blowing anemometer according to claim 1, characterized in that: A limiting plate (17) is fixedly connected to one side of the measuring box (1). A limiting groove is opened inside the limiting plate (17), and a fixing plate (18) is inserted inside the limiting groove. The fixing plate (18) is fixedly connected to the display screen (3).

7. An interactive air-blowing anemometer according to claim 1, characterized in that: The display screen (3) is equipped with a Bluetooth transmission module, the rigid tube (10) is fixedly connected to a handle (19), and the blower tube (13) is fixedly connected to the mouthpiece (2).

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