Building external awning adjusting type wind tunnel test testing device

Abstract

The invention provides a building external awning adjusting type wind tunnel test testing device which comprises a testing wind tunnel and a wind tunnel simulator, a to-be-tested awning is arranged in the testing wind tunnel, a supporting seat is arranged at the lower end of the to-be-tested awning, supporting legs are arranged at the lower end of the supporting seat, and the testing device further comprises an adjusting assembly used for installing and positioning the supporting legs. The adjusting assembly comprises two linkage rods and a central rod, inclined grooves are formed in the outer ends of the two linkage rods, inner grooves are formed in the inner ends of the two linkage rods, awning frame positioning holes and angle positioning holes are formed in the inner ends of the inner grooves, rotating sector plates are arranged at the lower ends of the angle positioning holes, sliding rods are arranged at the lower ends of the rotating sector plates, and arc-shaped grooves are formed in the outer ends of the sliding rods. The centers of the two linkage rods are movably connected with the central rod, and the lower end of the central rod is fixed in the test wind tunnel. The problem of air volume detection of awnings of different sizes in different installation scenes is solved.

Description

Technical Field

[0001] The invention relates to the technical field of wind tunnel detection, and in particular to an adjustable wind tunnel test device for an external awning attached to a building. Background Art

[0002] The wind tunnel test device for building external awnings is a professional device used to simulate different meteorological conditions and airflow environments to scientifically test the performance of building external awnings. The device is a highly specialized, integrated experimental equipment with precise control capabilities, which is specially used to simulate various complex wind field conditions in the real atmospheric environment in a laboratory environment.

[0003] In the prior art, during the use of wind tunnel testing, the space where the awning is installed is different, and it is impossible to simulate environmental testing. It is easy for the awning to be installed in a narrow wind outlet or different positions in an open area, and to be tested under different wind sizes and directions. Therefore, we have made improvements to this and proposed an adjustable wind tunnel test device for an awning attached to a building. Summary of the invention

[0004] The purpose of the present invention is to address the problem that the current wind tunnel detection design cannot adapt to the different installation spaces of the awning, cannot simulate environmental detection, and is prone to detection when the awning is installed in narrow wind outlets or different positions in open areas, subject to different wind sizes and directions.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: The invention discloses an adjustable wind tunnel test device for a building exterior awning to improve the above problems.

[0006] The specific application is as follows: A wind tunnel test device for an adjustable awning attached to a building, comprising a test wind tunnel and a wind tunnel simulator, wherein a awning to be tested is arranged inside the test wind tunnel, a support seat is arranged at the lower end of the awning to be tested, and a support foot is arranged at the lower end of the support seat, and further comprising: An adjustment component is used for installing and positioning the supporting feet. The adjustment component includes two groups of linkage rods and a central rod. The outer ends of the two groups of linkage rods are provided with oblique grooves, and the inner ends of the two groups of linkage rods are provided with inner grooves. The inner ends of the inner grooves are provided with awning rack positioning holes and angle positioning holes. The lower end of the angle positioning hole is provided with a rotating fan-shaped plate, and the lower end of the rotating fan-shaped plate is provided with a sliding rod. The outer end of the sliding rod is provided with an arc groove, and the outer end of the arc groove is provided with a fan-shaped groove.

[0007] As the preferred technical solution of the present application, the centers of the two sets of linkage rods are movably connected to the central rod, the lower end of the central rod is fixed in the test wind tunnel, and fixed rods are respectively provided at the upper and lower ends of the center of the test wind tunnel. The connection between the two sets of linkage rods and the central rod is cut off by an oblique groove, and the inner groove is embedded in the inner surface of the upper end of the two sets of linkage rods. The inner end of the inner groove is connected through the awning frame positioning hole and the angle positioning hole.

[0008] As a preferred technical solution of the present application, the angle positioning hole passes through the upper and lower outer surfaces of the rotating fan plate, the lower end of the rotating fan plate is fixedly connected to the sliding rod, the sliding rod slides along the arc in the arc groove, the awning rack positioning hole passes through the upper and lower ends of the linkage rod and the upper and lower ends of the supporting foot, a screw assembly 1 is fixed between the linkage rod and the supporting foot through the awning rack positioning hole, a screw assembly 2 is fixed between the rotating fan plate and the linkage rod through the angle positioning hole, and the outer end of the arc groove is connected with the fan-shaped groove.

[0009] As a preferred technical solution of the present application, an adjusting bin plate is provided at the outer end of the fan-shaped groove, sliders are provided at the upper and lower ends of the adjusting bin plate respectively, a sliding groove is provided at the outer end of the slider, an electric telescopic rod is provided at the inner end of the sliding groove, a sealing strip is provided at the outer end of the slider, a rotating rod is provided at the tail end of the sealing strip, a shrinkage groove is provided at the outer end of the rotating rod, multiple groups of electric push rods are provided between the adjusting bin plate and the test wind tunnel, folding leather plate groups are provided between the upper and lower ends of the adjusting bin plate and the test wind tunnel respectively, sealing plates are provided between the folding leather plate groups, and folding sealing skins are provided at the outer end of the adjusting bin plate and the front and rear ends of the test wind tunnel respectively.

[0010] As a preferred technical solution of the present application, a fan-shaped groove is embedded in the inner end of the adjusting chamber plate, a slider is fixed on the upper and lower outer surfaces of the adjusting chamber plate, the slider slides along the slide groove, the slide groove is embedded in the upper and lower inner surfaces of the test wind tunnel, one end of the electric telescopic rod is fixed in the slide groove, the other end of the electric telescopic rod is fixed to one end of the slider, the other end of the slider is fixedly connected to the head end of the sealing strip, the tail end of the sealing strip is fixed on the rotating rod, the rotating rod is elastically fixed in the shrinkage groove, the outer end of the rotating rod is movably connected to the scale spring, the sealing strip is wrapped around the outer end of the rotating rod, and the two ends of the sealing strip are movably attached to the inner surfaces of the two ends of the slide groove.

[0011] As the preferred technical solution of the present application, the upper and lower ends of the adjusting bin plate are respectively movably connected to the test wind tunnel through a folding skin plate group, and the folding skin plate groups are sealed together through a sealing plate, and the folding sealing skin is sealed at the front and rear ends of the adjusting bin plate and the test wind tunnel.

[0012] As the preferred technical solution of the present application, an air induced draft plate and a wind tunnel plate are provided between the wind tunnel simulator and the test wind tunnel, the inner end of the air induced draft plate is provided with an outer telescopic plate, the outer end of the outer telescopic plate is provided with a telescopic groove, the inner end of the air induced draft plate is provided with an air induced groove, the air induced draft plate is fixed to the rear end of the adjustment chamber plate, the air induced groove is embedded in the inner end of the air induced draft plate, the inner surface of the air induced draft plate and the outer end of the outer telescopic plate are attached to each other, the outer telescopic plate slides in the telescopic groove, and the telescopic groove is embedded in the wind tunnel simulator.

[0013] As the preferred technical solution of the present application, the wind tunnel simulator signal is connected to the wind duct system, and the wind duct system controls the power device, sensor module, environmental parameter sensor group, control module, storage module and alarm module.

[0014] As a preferred technical solution of the present application, the power device includes at least one fan, which can change the rotation speed and angle to adjust the wind speed, wind volume and wind direction through the air duct system. The sensor module is arranged in the air duct system, including a wind speed sensor for measuring wind speed and a wind volume sensor for measuring wind volume. The sensor module collects wind speed and wind volume data in real time and transmits the data to the control module.

[0015] As the preferred technical solution of the present application, an environmental parameter sensor group is arranged around and inside the wind tunnel simulator, and is used to obtain actual environmental parameters such as temperature, humidity, and air pressure, and send these parameter information to the control module. The control module is electrically connected to the power unit, the sensor module, and the environmental parameter sensor group. The control module calculates the required fan speed adjustment instructions through an algorithm based on the preset simulation scenario model and the received wind speed, air volume, and environmental parameter data. The storage module is connected to the control module and is used to store the preset simulation scenario model, historical measurement data, and control strategy data generated by the control module. The alarm module is connected to the control module.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of this application: 1. By setting a rotating fan-shaped plate and the gears, teeth and motor drive system that match it, the angle of the awning to be tested can be easily adjusted to achieve multi-angle wind tunnel tests. Compared with the existing technology, it can more comprehensively simulate the actual stress conditions of the awning attached to the building under different wind directions and angles, and improve the accuracy and reliability of the test results.

[0017] 2. Multiple sealing measures such as folding skin panels, sealing panels, folding sealing skins and sealing strips are used to effectively prevent air leakage during wind tunnel tests. This helps to create a stable and accurate wind tunnel test environment, reduce the interference of external factors on test results, and make test data more authentic and reliable, which is different from the test errors caused by insufficient sealing in the existing technology.

[0018] 3. The design of the draft plate and the external expansion plate makes the connection between the wind tunnel simulator and the test wind tunnel adjustable, and can be adaptively adjusted according to the canopies of different sizes. When the expansion or contraction of the adjustment chamber plate is adjusted, the external expansion plate and the draft plate are always sealed to ensure the normal progress of the wind tunnel test. This flexibility and adaptability is lacking in the existing technology, which expands the scope of application of the device.

[0019] 4. The air duct system is equipped with a power device, sensor module, environmental parameter sensor group, control module, etc., which can collect and analyze data such as wind speed, air volume and environmental parameters in real time, and automatically adjust the fan speed according to the preset model to achieve precise control of the air volume. Compared with the existing technology, it can more accurately simulate the wind environment under various actual working conditions, and provide more scientific and accurate data support for the performance evaluation of the building's external awning.

[0020] 5. The storage module uses non-volatile memory to store preset simulation scenario models, historical measurement data, and control strategy data, which is convenient for subsequent query and analysis. At the same time, the alarm module can send out an alarm signal in time when the data collected by the sensor exceeds the preset safety range or the equipment fails, reminding the operator to take measures to ensure the safety and stability of the test process; Through the above, it is possible to detect the wind conditions of the awning according to the different environmental spaces where the awning is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of an adjustable wind tunnel test device for an exterior awning attached to a building provided in this application; Figure 2 A schematic diagram of the enlarged structure of a test wind tunnel of an adjustable wind tunnel test device for an external awning attached to a building provided in this application; Figure 3 A schematic diagram of the front view of the side section of the chute in the test wind tunnel of an adjustable wind tunnel test device for an exterior building awning provided in the present application; Figure 4 A wind tunnel test device for an adjustable awning attached to a building provided in this application Figure 3 A is a schematic diagram of the enlarged structure of the middle part; Figure 5 A schematic diagram of the overall central side section structure of an adjustable wind tunnel test device for an exterior awning attached to a building provided in this application; Figure 6 A wind tunnel test device for an adjustable awning attached to a building provided in this application Figure 5 A schematic diagram of the enlarged structure of B; Figure 7 This is a schematic diagram of the overall front left view of the structure of an adjustable wind tunnel test device for an external building awning provided in this application; Figure 8 This is a schematic diagram of the overall cross-sectional top view of a wind tunnel test device for an adjustable wind tunnel test of an external awning attached to a building provided in this application; Fig. 9 A wind tunnel test device for an adjustable awning attached to a building provided in this application Figure 8 Schematic diagram of the enlarged structure of D in the middle; Fig.10 A wind tunnel test device for an adjustable awning attached to a building provided in this application Figure 8 Schematic diagram of the enlarged structure of C in the figure.

[0022] Indicated in the figure: 1. Test wind tunnel; 2. Adjustment of the compartment plate; 3. Electric push rod; 4. Folding leather plate group; 5. Sealing plate; 6. Sealing strip; 7. Sliding block; 8. Sliding groove; 9. Electric telescopic rod; 10. Contraction groove; 11. Rotating rod; 12. Linking rod; 13. Central rod; 14. Arc groove; 15. Sliding rod; 16. Rotating fan-shaped plate; 17. Oblique groove; 18. Angle positioning hole; 19. Awning rack positioning hole; 20. Inner groove; 21. Fan-shaped groove; 22. Telescopic groove; 23. Outer telescopic plate; 24. Wind tunnel simulator; 25. Wind tunnel plate; 26. Wind induction plate; 27. Wind induction groove. DETAILED DESCRIPTION

[0023] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0024] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] like Figure 1-Figure 10 As shown, this embodiment provides a wind tunnel test device for an adjustable awning attached to a building, comprising a test wind tunnel 1 and a wind tunnel simulator 24. The test wind tunnel 1 is provided with a awning to be tested inside, a support seat is provided at the lower end of the awning to be tested, and a support foot is provided at the lower end of the support seat, and further comprises: An adjustment component is used for installing and positioning the supporting feet. The adjustment component includes two groups of linkage rods 12 and a central rod 13. The outer ends of the two groups of linkage rods 12 are provided with oblique grooves 17, and the inner ends of the two groups of linkage rods 12 are provided with inner grooves 20. The inner ends of the inner grooves 20 are provided with awning frame positioning holes 19 and angle positioning holes 18. The lower ends of the angle positioning holes 18 are provided with rotating fan-shaped plates 16. The lower ends of the rotating fan-shaped plates 16 are provided with sliding rods 15. The outer ends of the sliding rods 15 are provided with arc grooves 14, and the outer ends of the arc grooves 14 are provided with fan-shaped grooves 21.

[0027] The centers of the two sets of linkage rods 12 are movably connected to the central rod 13, and the lower end of the central rod 13 is fixed in the test wind tunnel 1. Fixed rods are respectively provided at the upper and lower ends of the center of the test wind tunnel 1. The connection between the two sets of linkage rods 12 and the central rod 13 is cut off by an oblique groove 17, and the inner groove 20 is embedded in the inner surface of the upper end of the two sets of linkage rods 12. The inner end of the inner groove 20 is connected through the awning frame positioning hole 19 and the angle positioning hole 18.

[0028] The angle positioning hole 18 passes through the upper and lower outer surfaces of the rotating fan plate 16, the lower end of the rotating fan plate 16 is fixedly connected to the sliding rod 15, the sliding rod 15 slides in an arc shape along the arc groove 14, the awning frame positioning hole 19 passes through the upper and lower ends of the linkage rod 12 and the upper and lower ends of the supporting foot, a screw assembly 1 is fixed between the linkage rod 12 and the supporting foot through the awning frame positioning hole 19, a screw assembly 2 is fixed between the rotating fan plate 16 and the linkage rod 12 through the angle positioning hole 18, and the outer end of the arc groove 14 is connected with the fan-shaped groove 21.

[0029] An adjusting bin plate 2 is provided at the outer end of the fan-shaped groove 21, and sliders 7 are respectively provided at the upper and lower ends of the adjusting bin plate 2, a slide groove 8 is provided at the outer end of the slider 7, an electric telescopic rod 9 is provided at the inner end of the slide groove 8, a sealing strip 6 is provided at the outer end of the slider 7, a rotating rod 11 is provided at the tail end of the sealing strip 6, and a contraction groove 10 is provided at the outer end of the rotating rod 11, a plurality of groups of electric push rods 3 are provided between the adjusting bin plate 2 and the test wind tunnel 1, folding leather plate groups 4 are respectively provided between the upper and lower ends of the adjusting bin plate 2 and the test wind tunnel 1, and sealing plates 5 are provided between the folding leather plate groups 4, and folding sealing leathers are respectively provided at the outer end of the adjusting bin plate 2 and the front and rear ends of the test wind tunnel 1.

[0030] The fan-shaped groove 21 is embedded in the inner end of the adjustment chamber plate 2, the slider 7 is fixed on the upper and lower outer surfaces of the adjustment chamber plate 2, the slider 7 slides along the slide groove 8, the slide groove 8 is embedded in the upper and lower inner surfaces of the test wind tunnel 1, one end of the electric telescopic rod 9 is fixed in the slide groove 8, the other end of the electric telescopic rod 9 is fixed to one end of the slider 7, the other end of the slider 7 is fixedly connected to the head end of the sealing strip 6, the tail end of the sealing strip 6 is fixed on the rotating rod 11, the rotating rod 11 is elastically fixed in the contraction groove 10, the outer end of the rotating rod 11 is movably connected to the ruler spring, the sealing strip 6 is wrapped around the outer end of the rotating rod 11, and the two ends of the sealing strip 6 are movably attached to the inner surfaces of the two ends of the slide groove 8.

[0031] The upper and lower ends of the regulating chamber plate 2 are movably connected to the test wind tunnel 1 through a folding skin plate group 4, and the folding skin plate groups 4 are sealed by a sealing plate 5. The folding sealing skin is sealed at the front and rear ends of the regulating chamber plate 2 and the test wind tunnel 1.

[0032] When using the test wind tunnel 1 to test the building's external awning, firstly, sample the building's external awning of the same batch shipped from the factory, fix the sample to be measured to each other through the support legs and the screw assembly 1, ensure that the sample to be measured is fixed in the linkage rod 12, and then confirm the position between the rotating sector plate 16 and the linkage rod 12 through the screw assembly 2. At this time, the sample to be measured is fixed; The outer end of the rotating sector plate 16 is provided with a gear and teeth according to the technology known to those skilled in the art. The teeth are wrapped around the outer end of the rotating sector plate 16 and connected to the motor through the gear to drive the meshing of the gear and the teeth, thereby driving the rotation of the rotating sector plate 16, so as to facilitate the wind tunnel test of the sample to be measured at different angles. When inspecting the awning attached to the building, the bottom of the awning attached to the building is guaranteed to be stable. According to the known method of the technicians in this field, the bottom is stabilized, and the actual inspection effect will not be affected by the small number of connecting parts of the linkage rod 12 and the rotating fan plate 16. In this process, the linkage rod 12 and the rotating fan plate 16 are weighted, or the linkage rod 12 and the rotating fan plate 16 are made of materials with increased density under the same volume, so as to ensure the weight of the overall bottom. When the sample to be measured is stably connected to the inside of the test wind tunnel 1, the corresponding folding skin plate group 4 and the sealing plate 5, and the folding sealing skin are respectively wrapped on the inner sides of the upper and lower ends of the adjustment chamber plate 2, and between the test wind tunnel 1 and the adjustment chamber plate 2, which can ensure that the internal wind tunnel test will not have air leakage; When adjusting the space between the bin plates 2, the sliding groove 8 is sealed by the sealing strip 6 to ensure the internal sealing stability; The electric telescopic rod 9 can be moved during the wind tunnel test, which is convenient for promoting the change of the air inlet space of the test wind tunnel 1, facilitating the adjustment of different environments for the use of the awning, and facilitating multi-faceted testing of the windproof condition of the awning.

[0033] like Figure 7-Figure 8 and Fig.10 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, an air induced draft plate 26 and a wind tunnel plate 25 are provided between the wind tunnel simulator 24 and the test wind tunnel 1, the inner end of the air induced draft plate 26 is provided with an outer telescopic plate 23, the outer end of the outer telescopic plate 23 is provided with a telescopic groove 22, the inner end of the air induced draft plate 26 is provided with an air induced groove 27, the air induced draft plate 26 is fixed to the rear end of the regulating chamber plate 2, the air induced groove 27 is embedded in the inner end of the air induced draft plate 26, the inner surface of the air induced draft plate 26 and the outer end of the outer telescopic plate 23 are attached to each other, the outer telescopic plate 23 slides in the telescopic groove 22, and the telescopic groove 22 is embedded in the wind tunnel simulator 24.

[0034] In the connection between the wind tunnel simulator 24 and the test wind tunnel 1, the wind penetration space of the test wind tunnel 1 is connected by the expansion and contraction of the adjustment chamber plate 2 and the air induction plate 26, and when the adjustment chamber plate 2 expands and contracts, the outer telescopic plate 23 in the wind tunnel simulator 24 is also sealed and connected to the air induction plate 26 connected to the outer end of the adjustment chamber plate 2, and the upper and lower ends are sealed, which can ensure the wind tunnel test of the wind tunnel simulator 24 and at the same time can carry out wind tunnel tests on awnings of different sizes.

[0035] The wind tunnel simulator 24 is signal-connected to an air duct system, and the air duct system controls a power device, a sensor module, an environmental parameter sensor group, a control module, a storage module and an alarm module.

[0036] The power device includes at least one fan, which can change the rotation speed and angle to adjust the wind speed, wind volume and wind direction passing through the air duct system. The sensor module is arranged in the air duct system, including a wind speed sensor for measuring wind speed and a wind volume sensor for measuring wind volume. The sensor module collects wind speed and wind volume data in real time and transmits the data to the control module.

[0037] The environmental parameter sensor group is arranged around and inside the wind tunnel simulator 24, and is used to obtain actual environmental parameters such as temperature, humidity, and air pressure, and send these parameter information to the control module. The control module is electrically connected to the power unit, the sensor module and the environmental parameter sensor group. The control module calculates the required fan speed adjustment instructions through an algorithm based on the preset simulation scenario model and the received wind speed, air volume, and environmental parameter data. The storage module is connected to the control module and is used to store the preset simulation scenario model, historical measurement data, and control strategy data generated by the control module. The alarm module is connected to the control module.

[0038] The fan in the power unit is a variable speed centrifugal fan or an axial flow fan. The speed regulation of the fan uses different air volumes in real life to convert into the speed of the fan to meet the adjustment requirements of wind speed and air volume in different simulation scenarios.

[0039] The wind speed sensor in the sensor module adopts a hot wire anemometer or an ultrasonic anemometer, and the air volume sensor adopts a pitot tube or an orifice flowmeter.

[0040] The environmental parameter sensor group includes a temperature sensor, a humidity sensor and an air pressure sensor, which are used to measure the temperature, relative humidity and atmospheric pressure inside and around the wind tunnel simulator 24 respectively.

[0041] The storage module uses non-volatile memory, such as flash memory or hard disk drive (, to ensure that data is not lost in the event of a power outage.

[0042] When the data collected by the sensor exceeds the preset safety range or the equipment fails, the alarm module sends an alarm signal to remind the operator.

[0043] When using this application: Sample fixation: Take samples from the same batch of building external awnings, fix the sample to be measured in the linkage rod 12 through the support feet and screw assembly 1, and then use screw assembly 2 to confirm the position between the rotating sector plate 16 and the linkage rod 12 to complete the sample fixation; Angle adjustment preparation: A gear and teeth are provided at the outer end of the rotating sector plate 16, and the teeth are wrapped around the outer end of the rotating sector plate 16 to connect the gear to the motor; Angle adjustment and test: The motor drives the gear to mesh with the teeth, pushing the rotating sector plate 16 to rotate, so that the sample to be measured is at different angles for wind tunnel test. In this process, in order to ensure the stability of the bottom of the building's external canopy, the linkage rod 12 and the rotating sector plate 16 can be weighted, or made of materials with increased density under the same volume; Sealing guarantee: After the sample to be measured is stably connected to the inside of the test wind tunnel 1, the folding leather plate group 4, the sealing plate 5, and the folding sealing leather are respectively wrapped around the inner sides of the upper and lower ends of the adjustment chamber plate 2, and between the test wind tunnel 1 and the adjustment chamber plate 2, and the sealing strip 6 seals the slide groove 8 to ensure that there is no air leakage inside the wind tunnel test; Wind tunnel connection and preparation: The wind tunnel simulator 24 and the test wind tunnel 1 are connected through the air induction plate 26. The outer telescopic plate 23 at the inner end of the air induction plate 26 slides in the telescopic slot 22 of the wind tunnel simulator 24. When the expansion and contraction of the adjustment chamber plate 2 are adjusted, the outer telescopic plate 23 and the air induction plate 26 are sealed and connected to each other, and the upper and lower ends are sealed to adapt to the wind tunnel test of awnings of different sizes; Start the system: start the wind tunnel simulator 24 signal connected wind duct system, the power device, sensor module, environmental parameter sensor group, control module, storage module and alarm module start to work; Simulation test: The fan in the power unit changes its rotation speed and angle to adjust the wind speed, air volume and wind direction entering the test wind tunnel 1 through the air duct system; the sensor module collects wind speed and air volume data in real time, and the environmental parameter sensor group obtains actual environmental parameters such as temperature, humidity, and air pressure, and transmits all data to the control module; the control module calculates the fan speed adjustment instruction based on the preset simulation scenario model and the received data; the storage module stores the relevant data; if the sensor collected data exceeds the preset safety range or the equipment fails, the alarm module sends an alarm signal.

[0044] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A wind tunnel test device for an adjustable awning attached to a building, comprising a test wind tunnel (1) and a wind tunnel simulator (24), characterized in that: The test wind tunnel (1) is provided with a rain canopy to be tested inside, a support seat is provided at the lower end of the rain canopy to be tested, and a support foot is provided at the lower end of the support seat, and further comprises: An adjustment component is used for installing and positioning a support foot. The adjustment component comprises two groups of linkage rods (12) and a central rod (13). The outer ends of the two groups of linkage rods (12) are provided with oblique grooves (17). The inner ends of the two groups of linkage rods (12) are provided with inner grooves (20). The inner ends of the inner grooves (20) are provided with awning frame positioning holes (19) and angle positioning holes (18). The lower ends of the angle positioning holes (18) are provided with a rotating fan-shaped plate (16). The lower ends of the rotating fan-shaped plate (16) are provided with a sliding rod (15). The outer ends of the sliding rods (15) are provided with arc grooves (14). The outer ends of the arc grooves (14) are provided with fan-shaped grooves (21).

2. The adjustable wind tunnel test device for building external awning according to claim 1 is characterized in that: The centers of the two groups of linkage rods (12) are movably connected to the central rod (13); the lower end of the central rod (13) is fixed in the test wind tunnel (1); the upper and lower ends of the center of the test wind tunnel (1) are respectively provided with fixing rods; the connection between the two groups of linkage rods (12) and the central rod (13) is cut by an oblique groove (17); the inner groove (20) is embedded in the inner surface of the upper end of the two groups of linkage rods (12); the inner end of the inner groove (20) is connected to the awning frame positioning hole (19) and the angle positioning hole (18).

3. The adjustable wind tunnel test device for building external awning according to claim 2 is characterized in that: The angle positioning hole (18) penetrates the upper and lower outer surfaces of the rotating sector plate (16); the lower end of the rotating sector plate (16) is fixedly connected to the sliding rod (15); the sliding rod (15) slides in an arc shape along the arc groove (14); the awning frame positioning hole (19) penetrates the upper and lower ends of the linkage rod (12) and the upper and lower ends of the supporting foot; a screw assembly 1 is fixed between the linkage rod (12) and the supporting foot through the awning frame positioning hole (19); a screw assembly 2 is fixed between the rotating sector plate (16) and the linkage rod (12) through the angle positioning hole (18); and the outer end of the arc groove (14) is penetrated and connected to the sector groove (21).

4. The adjustable wind tunnel test device for building external awning according to claim 3 is characterized in that: An adjusting chamber plate (2) is provided at the outer end of the fan-shaped groove (21), and sliders (7) are provided at the upper and lower ends of the adjusting chamber plate (2), respectively. A sliding groove (8) is provided at the outer end of the sliding groove (7), and an electric telescopic rod (9) is provided at the inner end of the sliding groove (8). A sealing strip (6) is provided at the outer end of the sliding groove (7), and a rotating rod (11) is provided at the tail end of the sealing strip (6), and a contraction groove (10) is provided at the outer end of the rotating rod (11). A plurality of groups of electric push rods (3) are provided between the adjusting chamber plate (2) and the test wind tunnel (1), and folding leather plate groups (4) are provided between the upper and lower ends of the adjusting chamber plate (2) and the test wind tunnel (1), and a sealing plate (5) is provided between the folding leather plate groups (4), and folding sealing leather is provided at the outer end of the adjusting chamber plate (2) and the front and rear ends of the test wind tunnel (1).

5. The adjustable wind tunnel test device for building external awning according to claim 4 is characterized in that: The fan-shaped groove (21) is embedded in the inner end of the adjustment chamber plate (2), the slider (7) is fixed to the upper and lower outer surfaces of the adjustment chamber plate (2), the slider (7) slides along the slide groove (8), the slide groove (8) is embedded in the upper and lower inner surfaces of the test wind tunnel (1), one end of the electric telescopic rod (9) is fixed in the slide groove (8), the other end of the electric telescopic rod (9) is fixed to one end of the slider (7), the other end of the slider (7) is fixedly connected to the head end of the sealing strip (6), the tail end of the sealing strip (6) is fixed on the rotating rod (11), the rotating rod (11) is elastically fixed in the contraction groove (10), the outer end of the rotating rod (11) is movably connected to the ruler spring, the sealing strip (6) is wrapped around the outer end of the rotating rod (11), and the two ends of the sealing strip (6) are movably attached to the inner surfaces of the two ends of the slide groove (8).

6. The adjustable wind tunnel test device for building external awning according to claim 5 is characterized in that: The upper and lower ends of the regulating chamber plate (2) are movably connected to the test wind tunnel (1) via folding skin plate groups (4), and the folding skin plate groups (4) are sealed via sealing plates (5). The folding sealing skin is sealed at the front and rear ends of the regulating chamber plate (2) and the test wind tunnel (1).

7. The adjustable wind tunnel test device for building external awning according to claim 1 is characterized in that: An air induction plate (26) and a wind tunnel plate (25) are provided between the wind tunnel simulator (24) and the test wind tunnel (1); an outer telescopic plate (23) is provided at the inner end of the air induction plate (26); a telescopic groove (22) is provided at the outer end of the outer telescopic plate (23); an air induction groove (27) is provided at the inner end of the air induction plate (26); the air induction plate (26) is fixed to the rear end of the regulating chamber plate (2); the air induction groove (27) is embedded in the inner end of the air induction plate (26); the inner surface of the air induction plate (26) and the outer end of the outer telescopic plate (23) are attached to each other; the outer telescopic plate (23) slides in the telescopic groove (22); and the telescopic groove (22) is embedded in the wind tunnel simulator (24).

8. The adjustable wind tunnel test device for building external awning according to claim 7 is characterized in that: The wind tunnel simulator (24) is signal-connected to an air duct system, and the air duct system controls a power device, a sensor module, an environmental parameter sensor group, a control module, a storage module, and an alarm module.

9. The adjustable wind tunnel test device for building external awning according to claim 8 is characterized in that: The power device includes at least one fan, which can change the rotation speed and angle to adjust the wind speed, wind volume and wind direction passing through the air duct system. The sensor module is arranged in the air duct system, including a wind speed sensor for measuring wind speed and a wind volume sensor for measuring wind volume. The sensor module collects wind speed and wind volume data in real time and transmits the data to the control module.

10. The adjustable wind tunnel test device for building external awning according to claim 9, characterized in that: The environmental parameter sensor group is arranged around and inside the wind tunnel simulator (24) and is used to obtain actual environmental parameters such as temperature, humidity, air pressure, etc., and send these parameter information to the control module. The control module is electrically connected to the power device, the sensor module and the environmental parameter sensor group. The control module calculates the required fan speed adjustment instruction through an algorithm based on a preset simulation scene model and the received wind speed, air volume and environmental parameter data. The storage module is connected to the control module and is used to store the preset simulation scene model, historical measurement data and control strategy data generated by the control module. The alarm module is connected to the control module.

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