Wind speed tester capable of measuring breeze

Abstract

The utility model provides a wind speed tester capable of measuring breeze, and belongs to the field of wind speed measurement, and the wind speed tester capable of measuring breeze comprises a sensing device, a laser measuring instrument used for transmitting laser to the sensing device, and a speed scale. According to the wind speed tester provided by the utility model, the light emitted by the laser measuring instrument can reflect the laser at different positions after passing through the induction device according to different degrees of position deviation of the induction device caused by different wind speeds, so that the irradiated laser can measure the deviation position of the induction device; the actual wind speed is obtained according to the calibrated reading and wind speed relation chart, so that the measurement accuracy can be improved; in addition, by installing the funnel, air enters from the wide opening end of the funnel, more air flow can enter from the wide opening end, the air flow enters from the narrow opening end of the funnel after entering, and the air flow can be more concentrated. Therefore, the lower limit threshold of the detection range of the equipment can be widened.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of wind speed measurement, and particularly relates to a wind speed tester capable of measuring slight wind. BACKGROUND

[0002] Most conventional wind speed testers adopt mechanical or thermal principles to measure wind speed. Although these wind speed testers can meet the demand of wind speed measurement to some extent, some problems exist. For example, a wind speed tester with a rotor cannot quickly measure the change of wind speed because the rotor speed needs time to change, and even has a certain error in the measured wind speed due to the delay. Some thermal wind speed testers have problems such as high energy consumption and slow response. In addition, when the wind speed is low, the conventional wind speed tester cannot easily detect the wind speed.

[0003] Therefore, it is necessary to design a wind speed tester capable of measuring slight wind to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the technical problems in the background art, the application provides a wind speed tester capable of measuring slight wind. The wind speed tester can measure the offset position of the inductive device according to the different degrees of offset of the inductive device caused by different wind speeds, and then obtain the actual wind speed according to the reading and the wind speed relationship table, so that the change of low wind speed can be quickly responded, and the wind speed can be quickly and accurately measured.

[0005] The application provides a wind speed tester capable of measuring slight wind, which comprises a supporting table, an inductive device arranged on the supporting table, a laser measuring instrument for emitting laser to the inductive device, and a speed scale.

[0006] The inductive device is offset under the action of pressure.

[0007] The speed scale is used for recording the scale position of the speed scale irradiated by the laser emitted by the laser measuring instrument after the laser passes through the inductive device.

[0008] The inductive device is located between the laser measuring instrument and the speed scale.

[0009] In the technical scheme of the embodiment of the present application, the laser measuring instrument emits light, and the light is reflected by the sensing sheet at different positions after passing through the sensing device due to the different degrees of position offset of the sensing device caused by different wind speeds. The offset position of the sensing device can be measured by the laser, and the actual wind speed can be obtained according to the calibrated reading and the wind speed relation diagram, so that the measurement accuracy can be improved. In addition, the structure of the wind speed tester capable of measuring slight wind is simple, and the components are few, so that the maintenance and replacement of parts are more convenient. The offset change of the sensing device is easy to observe in real time, and the wind speed change is easy to perceive. Since the measurement principle does not depend on the direction of the wind speed, the wind speed tester can be used under various wind directions and wind speeds, and has strong adaptability. In addition, different speed scales or parameters of the laser measuring instrument can be added or adjusted to adapt to different wind speed measurement ranges, and the wind speed tester has good scalability.

[0010] In some embodiments, the support table includes a rectangular support table; the support table contains a hollow ventilation cavity;

[0011] The laser measuring instrument is located at one end of the ventilation cavity, and the laser measuring instrument is located on the support table; the speed scale is located at the other end of the ventilation cavity, and the speed scale is located on the support table; the sensing device is located in the ventilation cavity; the sensing device is located in the middle of the ventilation cavity.

[0012] In some embodiments, the laser emitted by the laser measuring instrument includes a strip-shaped laser.

[0013] In this embodiment, the laser is used for measurement, and there is no physical contact with the sensing device, which reduces mechanical wear and potential measurement interference, and improves the service life and measurement stability of the instrument.

[0014] In some embodiments, the sensing device includes a plurality of sensing sheets; the sensing sheets are connected by connecting pins.

[0015] In this embodiment, the sensing device composed of a plurality of sensing sheets is connected by connecting pins, the sensing sheets can rotate at different angles by the connecting pins, the sensitivity of the sensing sheets to the wind speed is improved, the high sensitivity of the sensing device to the wind speed change can be used to reflect the subtle changes of the wind speed in real time, and therefore the detection accuracy of the anemometer to the wind speed can be improved, and the anemometer can be suitable for different wind speed occasions.

[0016] In some embodiments, the wind speed tester capable of measuring slight wind further includes a funnel connected with the hollow ventilation cavity of the support table.

[0017] In some embodiments, the funnel is connected with the support table by a buckle bracket.

[0018] In some embodiments, the narrow end of the funnel communicates with the perforated ventilation cavity of the support platform.

[0019] In this embodiment, by allowing the air to enter from the wide end of the funnel, more airflow can enter from the wide end, while the airflow enters from the narrow end of the funnel, making the airflow more concentrated; thus, such airflow is easier to detect, especially in scenarios where the airflow is very small.

[0020] In some embodiments, the snap-fit ​​bracket includes a first U-shaped frame, a second U-shaped frame, a first connecting device for connecting the first U-shaped frame to the funnel, and a second connecting device for connecting the second U-shaped frame to the funnel.

[0021] In some embodiments, the inner wall of the support platform is formed at the junction of the support platform and the hollowed-out ventilation cavity of the support platform; the inner wall of the first U-shaped frame engages with the top of the support platform; and the outer wall of the second U-shaped frame engages with the inner wall of the support platform.

[0022] In this embodiment, the funnel is connected to the support platform by a snap-fit ​​mechanism, which allows the funnel to be quickly connected to or separated from the support platform, improving the efficiency of installation and disassembly and facilitating user operation and maintenance.

[0023] In some embodiments, the first connecting device includes a plurality of first connecting rods connecting the first U-shaped frame to the wide end near the funnel; the second connecting device includes a plurality of second connecting rods connecting the second U-shaped frame to the narrow end near the funnel.

[0024] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0026] Figure 1 This is a three-dimensional schematic diagram of a wind speed tester capable of measuring light winds according to an embodiment of this application;

[0027] Figure 2 This is a front view of a wind speed tester capable of measuring light winds according to an embodiment of this application;

[0028] Figure 3 This is a schematic diagram showing the positions of the sensing device, laser measuring instrument, and speed scale in a wind speed tester capable of measuring light wind according to an embodiment of this application.

[0029] Figure 4 This is a three-dimensional schematic diagram of a wind speed tester capable of measuring light winds, according to another embodiment of this application.

[0030] Figure 5 This is a schematic diagram showing the positions of the buckle bracket and the funnel in another embodiment of this application;

[0031] Figure 6 This is a three-dimensional schematic diagram of a wind speed tester capable of measuring light winds, according to another embodiment of this application.

[0032] Figure 7 This is a partially enlarged schematic diagram of the sensing device in one embodiment of this application;

[0033] Figure 8 This is a schematic diagram of a speed scale in one embodiment of this application;

[0034] Figure 9 This is a schematic diagram of a wind speed test using a sensing device in an embodiment of this application when no laser measuring instrument is available.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Support platform; 11. Ventilation cavity; 12. Inner wall; 2. Sensor plate; 21. Connecting pin; 3. Laser measuring instrument; 4. Speed ​​scale; 5. Funnel; 51. Narrow end; 52. Wide end; 6. Clip bracket; 61. First U-shaped frame; 62. Second U-shaped frame; 63. First connecting rod; 64. Second connecting rod; 7. Display screen; 8. Buttons. Detailed Implementation

[0037] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0042] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0043] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0045] Existing wind speed measurement instruments mostly employ mechanical or thermal principles, which cannot quickly detect changes in wind speed; or, in low-wind-speed scenarios, they suffer from slow response times and may fail to detect the magnitude of the wind speed. Therefore, it is particularly important to rationally improve the detection accuracy of anemometers.

[0046] To address the aforementioned technical problems, this application provides a wind speed tester capable of measuring light winds. Based on the varying degrees of positional shift of the sensing device caused by different wind speeds, the light emitted by the laser measuring instrument 3 is reflected by the sensing plate 2 at different positions after passing through the sensing device. The laser beam illuminated by this reflection can then be used to measure the shift position of the sensing device, thereby determining the corresponding specific wind speed and improving measurement accuracy.

[0047] For ease of explanation, the following embodiments use an anemometer capable of measuring light winds as an example.

[0048] Please refer to Figures 1-6 The wind speed tester for measuring light wind provided in this application embodiment includes: a support platform 1, a sensing device disposed on the support platform 1, a laser measuring instrument 3 for emitting laser light onto the sensing device, and a speed scale 4.

[0049] The sensing device shifts under pressure;

[0050] The speed scale 4 is used to record the scale position of the laser emitted by the laser measuring instrument 3 after passing through the sensing device and illuminating the speed scale 4; the scale is provided with a wind speed scale (i.e., scale value) corresponding to the degree of offset of the sensing device.

[0051] The sensing device is located between the laser measuring instrument 3 and the speed scale 4.

[0052] Under the pressure of wind speed, the sensing device blocks the laser at different positions. The degree of displacement of the sensing device corresponds to the pressure it experiences. After passing through the sensing device, the light emitted by the laser measuring instrument falls on the speed scale 4 at different positions. Therefore, the displacement position of the sensing device can be measured based on the coordinates of the reflected laser on the speed scale 4, thus determining the specific wind speed (the scale value corresponds to the corresponding wind speed), achieving wind speed measurement. This allows for intuitive and accurate measurement of wind speed based on the coordinates of the laser illumination on the speed scale 4, improving measurement accuracy. Furthermore, the anemometer capable of measuring light winds has a simple structure with few components, making maintenance and component replacement more convenient. Since the measurement principle does not depend on the direction of wind speed, it can be used under various wind directions and speeds, exhibiting strong adaptability. Additionally, different speed scales 4 can be added or the parameters of the laser measuring instrument 3 can be adjusted to accommodate different wind speed measurement ranges, demonstrating good scalability.

[0053] It should be noted that the user calculates the corresponding wind speed based on the reading on the speed scale 4 and then through empirical formulas. This process does not involve the automatic calculation process of the device's internal components. Instead, the user calculates the wind speed himself or obtains it based on the data stored in the device. The purpose of this invention is to obtain the reading on the speed scale 4 in the aforementioned device.

[0054] It is understood that the wind speed tester of this invention can be calibrated before use. This involves first outputting airflows of different speeds into the ventilation chamber 11 under experimental conditions and obtaining readings on the speed scale 4. This will yield a data graph or table (i.e., a chart showing different wind speeds and readings) of the wind speed and the readings on the speed scale 4. In actual use, the wind speed value can be obtained by referring to the readings on the speed scale 4 in conjunction with the calibrated data graph or table.

[0055] As another embodiment of this utility model, in order to improve the automation level of the device, it is also possible to install a processor in the above-mentioned wind speed tester, and preset the data graph or data table of the wind speed and the reading on the speed scale 4 in the above-mentioned calibration process into the processor. Then, when using it, the reading on the speed scale 4 is input through the button 8, and the processor obtains the wind speed value according to the data graph or data table preset in the processor, and displays the wind speed value on the display screen 7.

[0056] Specifically, the support platform 1 can be made of acrylic material, which makes it easy to observe the position of the laser falling on the speed scale 4 directly with the human eye.

[0057] In this embodiment, the support platform 1 includes a rectangular support platform; the support platform 1 contains a hollowed-out ventilation cavity 11; the laser measuring instrument 3 is located at one end of the ventilation cavity 11 and is located on the support platform 1; the speed scale 4 is located at the other end of the ventilation cavity 11 and is located on the support platform 1; the sensing device is located inside the ventilation cavity 11; the sensing device is located in the middle of the ventilation cavity 11.

[0058] Furthermore, in this embodiment, the laser emitted by the laser measuring instrument 3 includes a strip laser. The strip laser emitted by the laser measuring instrument 3 can be either a continuous laser or a pulsed laser.

[0059] Thus, using lasers for measurement eliminates the need for physical contact sensing devices, reducing mechanical wear and potential measurement interference, and improving the instrument's lifespan and measurement stability.

[0060] Furthermore, in this embodiment, the sensing device includes a plurality of sensing sheets 2; the sensing sheets are connected to each other by connecting pins 21. The material of the sensing sheets 2 can be metal foil.

[0061] Thus, by employing a sensing device composed of several sensing elements 2 connected by connecting pins 21, the sensing elements 2 can rotate at different angles through the connecting pins 21. This increases the sensitivity of the sensing elements to wind speed. With the high sensitivity of the sensing device to changes in wind speed, it can reflect subtle changes in wind speed in real time, thereby increasing the accuracy of the anemometer in detecting wind speed and making it suitable for situations that respond to different wind speeds.

[0062] In some other embodiments of this application, a funnel 5 may also be installed on the wind speed tester that can measure light winds, that is, a funnel 5 is provided that is connected to the hollow ventilation cavity 11 of the support platform 1, and the funnel 5 is connected to the support platform 1 through a snap bracket 6.

[0063] In this embodiment of the application, the narrow end 51 of the funnel 5 communicates with the hollowed-out ventilation cavity 11 of the support platform 1.

[0064] It should be noted that after the airflow enters from the narrow end 51 of the funnel 5, it flows out from the narrow end 51 of the funnel 5. The velocity of the outflowing airflow is increased proportionally to the velocity of the airflow entering from the narrow end 51 of the funnel 5. This allows the airflow to enter from the wide end of the funnel, enabling more airflow to enter from the wide end. The airflow entering from the narrow end of the funnel after entering can make the airflow more concentrated, thereby widening the lower limit threshold of the detection range of the equipment.

[0065] Furthermore, if the funnel 5 needs to be replaced, setting the area ratio of the wide end 52 to the narrow end 51 of the funnel 5 to a fixed ratio ensures that the increase ratio of the airflow velocity is known, which makes it easier to measure the wind speed.

[0066] In this way, the air enters from the wide end 52 of the funnel 5, allowing more airflow to enter. The airflow then enters from the narrow end 51 of the funnel 5, making the airflow more concentrated. This makes the airflow easier to detect, especially in scenarios with very low airflow.

[0067] Furthermore, in this embodiment of the application, the buckle bracket 6 includes a first U-shaped frame 61, a second U-shaped frame 62, a first connecting device connecting the first U-shaped frame 61 to the funnel 5, and a second connecting device connecting the second U-shaped frame 62 to the funnel 5.

[0068] Furthermore, in this embodiment, the inner wall 12 of the support platform 1 is formed at the junction of the support platform 1 and the hollow ventilation cavity 11 of the support platform 1; the inner wall 12 of the first U-shaped frame 61 is engaged with the top end of the support platform 1; and the outer wall of the second U-shaped frame 62 is engaged with the inner wall 12 of the support platform 1.

[0069] In this way, the funnel 5 is connected to the support platform 1 by a snap-fit ​​mechanism, which allows the funnel 5 to be quickly connected to or separated from the support platform 1, improving the efficiency of installation and disassembly and making it easier for users to operate and maintain.

[0070] Furthermore, in this embodiment of the application, the first connecting device includes a plurality of first connecting rods 63 connecting the first U-shaped frame 61 to the wide end 52 near the funnel 5; the second connecting device includes a plurality of second connecting rods 64 connecting the second U-shaped frame 62 to the narrow end 51 near the funnel 5.

[0071] Furthermore, in the embodiments of this application, such as Figure 7 As shown, the support platform 1 is made of transparent acrylic material, and the positional offset of the sensing device caused by wind speed pressure is correlated with the speed scale 4 according to experiments. Therefore, even without using the laser measuring instrument 3 to emit a laser onto the sensing plate 2 of the sensing device, the wind speed when the wind blows onto the sensing device can be determined simply by reading the speed scale 4 from the side of the support platform 1 where it is located. This method has lower accuracy but can measure an approximate wind speed, making it suitable for scenarios where high precision is not required.

[0072] Example

[0073] like Figures 1-9 As shown, this embodiment provides a wind speed tester that can measure a light breeze, including: a support platform 1, a sensing device disposed on the support platform 1, a laser measuring instrument 3 for emitting laser light onto the sensing device, a speed scale 4, a funnel 5 connected to the hollow ventilation cavity 11 of the support platform 1, a display screen 7 disposed on the support platform 1, buttons 8, and a processor (not shown in the figure) disposed in the support platform 1.

[0074] The sensing device shifts under pressure, and the degree of shift is related to the pressure it receives.

[0075] The display screen 7 is used to display the measured wind speed value;

[0076] The processor receives data such as the reading of the input speed scale 4 and the ratio of the narrow end to the wide end of the funnel 5, and then calculates the wind speed value.

[0077] The speed scale 4 is used to record the position of the scale on the speed scale 4 after the laser emitted by the laser measuring instrument 3 passes through the sensing device.

[0078] The sensing device is located between the laser measuring instrument 3 and the speed scale 4.

[0079] The support platform 1 is a rectangular support platform; the support platform 1 contains a hollowed-out ventilation cavity 11; the laser measuring instrument 3 is located at one end of the ventilation cavity 11 and on the support platform 1; the speed scale 4 is located at the other end of the ventilation cavity 11 and on the support platform 1; the sensing device is located inside the ventilation cavity 11 and in the middle of the ventilation cavity 11.

[0080] The laser emitted by the laser measuring instrument 3 is a bar laser.

[0081] The sensing device is composed of several sensing elements 2 connected together; the sensing elements 2 are connected to each other by connecting pins 21.

[0082] The funnel 5 is connected to the support platform 1 via a snap-fit ​​bracket 6.

[0083] The narrow end 51 of the funnel 5 is connected to the hollowed-out ventilation cavity 11 of the support platform 1.

[0084] The buckle bracket 6 includes a first U-shaped frame 61, a second U-shaped frame 62, a first connecting device for connecting the first U-shaped frame 61 to the funnel 5, and a second connecting device for connecting the second U-shaped frame 62 to the funnel 5.

[0085] The inner wall 12 of the support platform 1 is formed at the junction of the support platform 1 and the hollow ventilation cavity 11 of the support platform 1; the inner wall 12 of the first U-shaped frame 61 is engaged with the top of the support platform 1; the outer wall of the second U-shaped frame 62 is engaged with the inner wall 12 of the support platform 1.

[0086] The first connecting device includes a plurality of first connecting rods 63 connecting the first U-shaped frame 61 to the wide end 52 near the funnel 5; the second connecting device includes a plurality of second connecting rods 64 connecting the second U-shaped frame 62 to the narrow end 51 near the funnel 5.

[0087] The sensing element 2 in the sensing device faces the ventilation cavity 11, and the laser of the laser measuring instrument 3 shines on the sensing element 2, and then shines on the speed scale 4 after passing through the sensing element.

[0088] The wind speed tester provided in this application, which can measure light winds, determines the offset position of the sensing device by measuring the different degrees of positional shift of the sensing device due to different wind speeds. The light emitted by the laser measuring instrument 3 is reflected by the sensing plate 2 at different positions after passing through the sensing device. The actual wind speed can then be obtained by measuring the laser light emitted by the sensing device. This improves the accuracy of the measurement.

[0089] This utility model's wind speed tester for measuring light winds has a simple structure and few components, making maintenance and component replacement more convenient. Because its measurement principle does not depend on the direction of wind speed, it can be used under various wind directions and speeds, making it highly adaptable.

[0090] Furthermore, by installing a funnel 5 on the support platform 1, the wind enters from the wide end 52 of the funnel 5, allowing more airflow to enter. The airflow then enters from the narrow end 51 of the funnel 5, making the airflow more concentrated. This makes the airflow easier to detect, especially in scenarios with very weak airflow. The anemometer of this application, capable of measuring even light winds, offers significant advantages in improving measurement accuracy, simplifying operation, enhancing equipment stability, and reducing maintenance costs. It is an efficient, reliable, and practical wind speed measurement tool.

[0091] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A wind speed measuring instrument capable of measuring light winds, characterized in that, include: Support platform, sensing device mounted on the support platform, laser measuring instrument for emitting laser light onto the sensing device, and speed scale; The sensing device shifts under pressure; The speed scale is used to record the position of the scale where the laser emitted by the laser measuring instrument illuminates the speed scale after passing through the sensing device; The sensing device is located between the laser measuring instrument and the speed scale.

2. The wind speed tester capable of measuring light winds according to claim 1, characterized in that, The support platform includes a rectangular support platform; the support platform contains a hollowed-out ventilation cavity; The laser measuring instrument is located at one end of the ventilation cavity and on the support platform; the speed scale is located at the other end of the ventilation cavity and on the support platform; the sensing device is located inside the ventilation cavity; the sensing device is located in the middle of the ventilation cavity.

3. The wind speed tester capable of measuring light winds according to claim 1, characterized in that, The laser emitted by the laser measuring instrument includes bar lasers.

4. The wind speed tester capable of measuring light winds according to claim 1, characterized in that, The sensing device includes several sensing plates; the sensing plates are connected to each other by connecting pins.

5. The wind speed tester capable of measuring light winds according to claim 2, characterized in that, Also includes: A funnel connected to the hollowed-out ventilation cavity of the support platform.

6. The wind speed tester capable of measuring light winds according to claim 5, characterized in that, The funnel is connected to the support platform via a snap-fit ​​bracket.

7. The wind speed tester capable of measuring light winds according to claim 6, characterized in that, The narrow end of the funnel communicates with the hollowed-out ventilation cavity of the support platform.

8. The wind speed tester capable of measuring light winds according to claim 7, characterized in that, The buckle bracket includes a first U-shaped frame, a second U-shaped frame, a first connecting device connecting the first U-shaped frame to the funnel, and a second connecting device connecting the second U-shaped frame to the funnel.

9. The wind speed tester capable of measuring light winds according to claim 8, characterized in that, The inner wall of the support platform is formed at the junction of the support platform and the hollowed-out ventilation cavity of the support platform; the inner wall of the first U-shaped frame is engaged with the top of the support platform; the outer wall of the second U-shaped frame is engaged with the inner wall of the support platform.

10. The wind speed tester capable of measuring light winds according to claim 9, characterized in that, The first connecting device includes a plurality of first connecting rods connecting the first U-shaped frame to the wide end near the funnel; the second connecting device includes a plurality of second connecting rods connecting the second U-shaped frame to the narrow end near the funnel.

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