A wind pressure measuring device based on intelligent sensing elements

Abstract

The application relates to a wind pressure measuring device based on an intelligent sensing element, which comprises an intelligent sensing measuring assembly and a device shell, the intelligent sensing measuring assembly is arranged inside the device shell, the intelligent sensing measuring assembly can move up and down inside the device shell, support frames are arranged through the two sides of the device shell and located at the lower side of the intelligent sensing measuring assembly, the support frames can move along the vertical direction of the side of the device shell, the intelligent sensing measuring assembly comprises a base fixed in the device shell and an elastic cantilever beam with the root fixed on the base. The application adopts the intelligent sensing measuring assembly based on a unique "rigidity-flexibility" composite structure, the deformation is converted into an electric signal through a flexible composite sensing unit, the structure endows the assembly with sensitivity, can accurately measure the micro wind pressure, meanwhile, the rigid part ensures that plastic deformation does not occur under the large wind pressure, so that wide range and high precision measurement from micro wind to strong wind are realized.

Description

Technical Field

[0001] This invention relates to the technical field of wind pressure measurement, and in particular to a wind pressure measurement device based on intelligent sensing elements. Background Technology

[0002] Wind pressure is mainly measured by wind pressure sensors. The principle is to use air pressure to act directly on a diaphragm, causing the diaphragm to undergo micro-displacement or micro-deformation, which in turn causes a change in the resistance of the sensor. This change is then converted into a corresponding standard signal to detect changes in wind pressure.

[0003] Most existing wind pressure sensors incorporate a magnet and a Hall effect sensor. When pressure changes move the diaphragm and support, the distance between the magnet and the Hall effect sensor changes, and a detection signal is output based on the Hall effect principle. However, in this single-magnet structure, the change in distance between the magnet and the Hall effect sensor is not proportional to the change in output voltage, resulting in poor linearity, low accuracy, and low sensitivity, which fails to meet practical requirements.

[0004] Chinese patent CN112254867B discloses a wind pressure measuring device based on intelligent sensing elements for measuring wind pressure in an exhaust duct. The device includes a lever, a counterweight, a pressure sensor, and blades. The counterweight and blades are respectively mounted on both sides of the fulcrum of the lever, placing the lever in a balanced position. The blades are horizontally arranged in the vertical section of the exhaust duct and have multiple through holes. The pressure sensor is installed between the fulcrum and the exhaust duct, with its sensing surface facing downwards and in contact with the lever. The blades with through holes effectively reduce the direct and swirling impacts of the fluid, minimizing blade fluctuations and obtaining a relatively stable pressure signal, thereby achieving good automatic ventilation control. Furthermore, the pressure sensor is located outside the exhaust duct, significantly reducing maintenance costs and improving efficiency.

[0005] The aforementioned technologies have the following drawbacks: In the existing technology, wind pressure sensors detect wind pressure by deforming the detection element. However, when the wind force is too strong, causing excessive deformation of the detection element, the detection element cannot be retracted in time, resulting in damage to the detection element due to the strong wind. Summary of the Invention

[0006] In response to the problems mentioned in the background art, the present invention provides a wind pressure measurement device based on intelligent sensing elements.

[0007] The present invention provides a wind pressure measuring device based on intelligent sensing elements, which adopts the following technical solution: it includes an intelligent sensing measuring component and a device housing. The intelligent sensing measuring component is disposed inside the device housing and can move up and down inside the device housing. Support frames are provided through both sides of the device housing and below the intelligent sensing measuring component. The support frames can move along the direction perpendicular to the side of the device housing.

[0008] The intelligent sensing and measurement component includes:

[0009] The base is fixed inside the outer casing of the device;

[0010] An elastic cantilever beam, the root of which is fixed to the base;

[0011] A flexible composite sensing unit is disposed at the free end of the elastic cantilever beam, with its sensing surface facing the direction of the wind pressure flow. The flexible composite sensing unit responds to the wind pressure by deforming and outputs a corresponding electrical signal.

[0012] The device housing is equipped with air collection boxes on both sides of the two support frames. A wind sensing plate is vertically fitted inside the air collection box. The two wind sensing plates rotate relative to the two air collection boxes via the same shaft. The shaft passes through the outside of the device housing and elastically twists relative to the device housing. A linkage mechanism is installed at the end of the shaft outside the air collection box to control the movement of the support frame out of the device housing.

[0013] Optionally, the linkage mechanism includes a synchronous dial plate, a bent rod, and a vertical rod. The vertical rod is fitted to the outside of the device housing, and the device housing is sleeved on the outside of the vertical rod and can move vertically relative to it. The vertical rod and the device housing are vertically elastically connected. One end of the synchronous dial plate is fixed to the shaft. The bent rod is divided into a vertical part and a horizontal part. The vertical part of the bent rod is located on the upper side of the synchronous dial plate, and the horizontal part of the bent rod is installed on one side of the vertical rod.

[0014] The upper end of the upright is inclined on the side away from the device housing. The two uprights are located on the lower side of the two support frames respectively. The support frame is inclined on the lower side of the upper part of the corresponding upright, close to the device housing.

[0015] Optionally, the air collecting box is provided with a rotating shaft on the side near the device housing, the device housing is rotatably sleeved on the outside of the rotating shaft, a ratchet and tooth assembly that limits the unidirectional rotation of the rotating shaft is installed on the outside of the device housing, and a fan is installed on the outside of the rotating shaft at the air outlet of the air collecting box.

[0016] The rotating shaft is located inside the device housing. One end of the rotating shaft is coaxially mounted with a prism that can move along the axis. The prism is elastically connected to the rotating shaft. A bevel gear meshing assembly is provided on the side of the prism away from the connected rotating shaft. During movement, the prism can coaxially engage with one of the bevel gears of the bevel gear meshing assembly. Rotatable lifting control mechanisms are installed on both inner walls of the device housing. The lifting control mechanisms can control the intelligent sensing and measuring component to move upward. The intelligent sensing and measuring component is located between the two lifting control mechanisms. The two lifting control mechanisms are coaxially mounted with one of the bevel gears of the two bevel gear meshing assemblies, respectively. The lifting control mechanisms are set perpendicular to the rotating shaft.

[0017] Optionally, the cross-section of the prism at the outer end of the rotating shaft is larger than the cross-section at the inner end of the rotating shaft. The side of the prism with its large diameter end near its small diameter end is beveled. A force-bearing frame is provided on the side of the prism with its large diameter end near its small diameter end. The lower end of the force-bearing frame is in the shape of a right-angled U. The small diameter end of the prism is located inside the U-shaped opening of the force-bearing frame. The lower end of the force-bearing frame can move up and down through the bottom wall of the inner shell of the device. When the intelligent sensing and measuring component moves downward, it will apply pressure to the force-bearing frame. When the force-bearing frame moves downward, it will make the prism coaxial with the bevel gear meshing component.

[0018] Optionally, the lifting control mechanism includes a threaded shaft, an engaging tension sleeve, and a pull plate. The pull plate and the engaging tension sleeve are both able to move up and down and are fitted together on the inner wall of the device housing. The pull plate is slidably sleeved on the outside of the threaded shaft, and the engaging tension sleeve is threadedly sleeved on the outer surface of the threaded shaft. The engaging tension sleeve is located on the upper side of the pull plate, and the engaging tension sleeve and the pull plate can move vertically elastically.

[0019] The lower end of the threaded shaft rotates through the bottom wall of the inner shell of the device. The threaded shaft can elastically twist relative to the outer shell of the device. The threaded shaft and the bevel gear corresponding to the bevel gear meshing assembly are coaxially installed. The threaded shaft and the rotating shaft are set perpendicularly. A stop is attached to the upper side of the pull plate. The stop is horizontally movable and installed through the side of the outer shell of the device. The stop is elastically connected to the outer shell of the device. The upper surface of the upper part of the stop on the pull plate is set at an inclination.

[0020] Optionally, an isosceles triangular rod is fixed to one end of the stop frame outside the device housing. The upper and lower surfaces of the isosceles triangular rod are inclined surfaces, and a push rod is provided on the lower side of the isosceles triangular rod. The push rod is fixed to the bent rod.

[0021] Optionally, a linkage frame is fixed on the upper surface of the force-bearing frame. The upper end of the linkage frame is bent horizontally toward the axis of the device housing. The bottom surface of the intelligent sensing and measurement component applies pressure to the force-bearing frame through a pressure frame installed at its bottom. The pressure frame is located below the horizontally bent end of the linkage frame. The pull plate moves upward and pushes the intelligent sensing and measurement component upward through the pressure frame.

[0022] Optionally, a reset rope is installed on the upper surface of the support frame. The reset rope slides through the outer surface of the device housing. A slider is fixed at one end of the reset rope inside the device housing. The slider is slidably inserted into the inner wall of the device housing. A reset frame is provided on the lower side of the slider. The reset frame is installed at the bottom of the intelligent sensing and measuring component. A groove is provided on the inner wall of the device housing for the slider and the reset frame to move.

[0023] In summary, the present invention has the following beneficial technical effects:

[0024] This invention employs an intelligent sensing and measurement component based on a unique "rigid-flexible" composite structure. The flexible composite sensing unit converts deformation into electrical signals. This structure endows the component with sensitivity, enabling accurate measurement of light wind pressure. At the same time, its rigid part ensures that no plastic deformation occurs under heavy wind pressure, thereby achieving a wide range and high precision measurement from light to strong winds, significantly improving performance.

[0025] By setting up components such as a wind-sensing plate, a wind-gathering box, and a support frame, the support frame moves outward through a linkage mechanism as the wind-sensing plate rotates under the wind. After the wind-sensing plate rotates to a specific angle under the wind force, it causes the support frame to detach from the underside of the intelligent sensing and measurement component. The intelligent sensing and measurement component then falls downward into the device housing under the force of gravity. The intelligent sensing and measurement component is protected by the device housing, ensuring that it will not be damaged by strong winds.

[0026] This invention employs components such as a meshing tension sleeve, a pull plate, a force-bearing frame, and a prism shaft. When the intelligent sensing and measuring component reaches its lowest point, pressure is applied to the force-bearing frame, causing it to move downwards. This pushes the prism shaft out from the rotating shaft and engages with a bevel gear meshing assembly for transmission. Driven by the wind, the fan rotates the threaded shaft via the rotating shaft, prism shaft, and bevel gear meshing assembly. The meshing tension sleeve gradually moves upwards through engagement with the rotating threaded shaft. The pull plate, blocked by a baffle, cannot move upwards. The meshing tension sleeve generates an upward pulling force on the pull plate. Once the wind force decreases to a safe level, the baffle disengages from the pull plate, allowing it to move upwards under the elastic tension of the meshing tension sleeve. This upward movement of the pull plate applies an upward pulling force to the pressure frame and the intelligent sensing and measuring component, causing the intelligent sensing and measuring component to extend upwards out of the device housing. After the intelligent sensing and measuring component reaches its highest point, the support frame moves again to support it from below. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of the device housing in an embodiment of the present invention;

[0029] Figure 3This is a front view schematic diagram of some structures in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the connection between the rotating shaft and the device housing in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the distribution of the slider and the reset frame in an embodiment of the present invention;

[0032] Figure 6 This is a side view schematic diagram of some structures in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the distribution of the baffle and the pull plate in an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the connection between the reset rope and the slider in an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the connection between the prism shaft and the rotating shaft in an embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the structure of the intelligent sensing and measurement component in an embodiment of the present invention.

[0037] Reference numerals: 1. Intelligent sensing and measurement component; 2. Device housing; 3. Support frame; 31. Reset rope; 32. Slider; 33. Reset frame; 4. Wind-sensing plate; 5. Wind-gathering box; 6. Shaft; 7. Linkage mechanism; 71. Synchronous dial plate; 72. Bending rod; 73. Vertical pole; 8. Rotating shaft; 9. Fan; 10. Prism shaft; 11. Bevel gear meshing assembly; 12. Lifting control mechanism; 121. Threaded shaft; 122. Meshing tension sleeve; 123. Pull plate; 124. Stop frame; 125. Isosceles triangular rod; 126. Push rod; 13. Force-bearing through frame; 131. Linkage frame; 132. Pressure frame; 14. Base; 15. Elastic cantilever beam; 16. Flexible composite sensing unit. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-10 The present invention will be described in further detail below.

[0039] This invention discloses a wind pressure measurement device based on intelligent sensing elements. For example... Figures 1-10As shown, the device includes an intelligent sensing and measurement component 1 and a device housing 2. The intelligent sensing and measurement component 1 is disposed inside the device housing 2 and can move up and down inside the device housing 2. Support frames 3 are provided through both sides of the device housing 2 and below the intelligent sensing and measurement component 1. The support frames 3 can move along the direction perpendicular to the side of the device housing 2. The part of the support frame 3 that contacts the device housing 2 is equipped with ball bearings that can rotate relative to each other, increasing the smoothness of the movement of the support frame 3 relative to the device housing 2.

[0040] In this embodiment, the intelligent sensing and measurement component 1 includes:

[0041] The base 14 is fixed inside the outer casing 2 of the device;

[0042] The elastic cantilever beam 15 is fixed at its root to the base 14;

[0043] The flexible composite sensing unit 16 is disposed at the free end of the elastic cantilever beam 15, with its sensing surface facing the direction of the wind pressure flow. The flexible composite sensing unit 16 deforms in response to the wind pressure and outputs a corresponding electrical signal.

[0044] Specifically, the elastic cantilever beam 15 includes highly elastic stainless steel sheets;

[0045] The flexible composite sensing unit 16 includes a flexible substrate, a sensitive diaphragm, and wires;

[0046] The base 14 is used to fix the high elasticity stainless steel sheet; the flexible substrate is placed in the groove of the high elasticity stainless steel sheet and together with the steel sheet serves as a carrier for the sensitive membrane; the sensitive membrane is deposited with clusters of dots and is glued to both ends of the groove of the high elasticity stainless steel sheet.

[0047] Sensitive diaphragms are formed by depositing clustered lattice electrodes on PET or PI films. The thinner the PET or PI film, the higher the sensitivity. Flexible substrates include flexible materials such as PDMS, TPU, and hydrogels. The hardness and thickness of the flexible substrate and the highly elastic stainless steel sheet determine the measurement range of wind pressure.

[0048] When detecting low or moderate wind pressure, deformation of the PET or PI film and PDMS substrate causes changes in the electrical signal of the cluster lattice electrodes. When detecting high wind pressure, deformation of the stainless steel sheet causes large deformation of the PET or PI cluster lattice, thus providing a wider response range. Finally, the wind pressure magnitude is obtained through data acquisition and conversion.

[0049] The outer casing 2 is equipped with air collection boxes 5 on both sides of the two support frames 3. A wind sensing plate 4 is vertically fitted inside the air collection box 5. The two wind sensing plates 4 rotate relative to the two air collection boxes 5 via the same shaft 6. The lower end of the wind sensing plate 4 rotates around the shaft 6. The cross-section of one end of the air collection box 5 is larger than that of the other end. The wind sensing plate 4 is located at the end of the smaller cross-section of the air collection box 5. Both ends of the air collection box 5 are open. Airflow enters the air collection box 5 from the end with the larger cross-section. The airflow entering the air collection box 5 pushes the wind sensing plate 4 to tilt and rotate. Then the airflow passes through the gap between the lower side of the wind sensing plate 4 and the inner wall of the air collection box 5. The shaft 6 passes through the outside of the outer casing 2. The shaft 6 elastically twists relative to the outer casing 2. The elastic connection between the shaft 6 and the outer casing 2 is preferably a torsion spring. The elasticity between the shaft 6 and the outer casing 2 has a tendency to drive the wind sensing plate 4 to a vertical state. A baffle is set on the upper side of the end of the wind sensing plate 4 near the air inlet of the air collection box 5 so that the wind sensing plate 4 can only rotate in one direction when it is in a vertical state.

[0050] The shaft 6 is located at one end outside the air collecting box 5 and is equipped with a linkage mechanism 7 that controls the support frame 3 to move outward from the outer casing 2 of the device.

[0051] The linkage mechanism 7 includes a synchronous shift plate 71, a bent rod 72, and a vertical rod 73. The vertical rod 73 is fitted to the outside of the device housing 2. The device housing 2 is sleeved on the outside of the vertical rod 73 and can move vertically relative to it. The vertical rod 73 is vertically elastically connected to the device housing 2. The elastic connection between the vertical rod 73 and the device housing 2 has a downward tendency. The elastic connection between the vertical rod 73 and the device housing 2 is preferably a spring. One end of the synchronous shift plate 71 is fixed to the shaft 6.

[0052] A rotating shaft 8 is provided on the side of the air collection box 5 near the device housing 2. The device housing 2 is rotatably sleeved on the outside of the rotating shaft 8. A ratchet and tooth assembly that limits the unidirectional rotation of the rotating shaft 8 is installed on the outside of the device housing 2. The ratchet and tooth assembly consists of a ratchet and a tooth. The ratchet is coaxially installed with the rotating shaft 8, and the tooth can elastically twist relative to the surface of the device housing 2.

[0053] A fan 9 is installed on the outside of the rotating shaft 8 at the air outlet of the air collection box 5. The airflow blown out from the air collection box 5 applies a blowing force to the part of the fan 9 located on the lower side of the rotating shaft 8, ensuring that the fan 9 is subjected to a blowing force in a certain direction.

[0054] The bent rod 72 is divided into a vertical part and a horizontal part. The vertical part of the bent rod 72 is located on the upper side of the synchronous plate 71. When the wind-sensing plate 4 is pushed by the wind and the synchronous plate 71 rotates, the synchronous plate 71 lifts the bent rod 72 and the upright rod 73 upward. The horizontal part of the bent rod 72 is installed on one side of the upright rod 73.

[0055] The upper end of the upright 73 is inclined on the side away from the outer casing 2 of the device. The two uprights 73 are located on the lower side of the two support frames 3 respectively. The support frame 3 is inclined on the lower side of the upper part of the corresponding upright 73 that is close to the outer casing 2 of the device. As the upright 73 moves upward, the inclined surface of the upright 73 applies a pushing force to the inclined surface of the support frame 3, pushing the support frame 3 to gradually detach from the lower side of the intelligent sensing and measuring component 1. After the support frame 3 is completely detached from the lower side of the intelligent sensing and measuring component 1, the intelligent sensing and measuring component 1 moves downward rapidly under its own resistance.

[0056] The rotating shaft 8 is located inside the housing 2 of the device, and one end is coaxially mounted with a prism 10 that can move along the axis. The prism 10 is elastically connected to the rotating shaft 8. The elastic connection between the prism 10 and the rotating shaft 8 is preferably a spring, which has a tendency to pull the prism 10 closer to the rotating shaft 8. A bevel gear meshing assembly 11 is provided on the side of the prism 10 away from the connected rotating shaft 8. The bevel gear meshing assembly 11 is composed of two mutually perpendicular bevel gears meshing. The two bevel gears rotate relative to the housing 2 of the device. During movement, the prism 10 can coaxially engage with one of the bevel gears of the bevel gear meshing assembly 11.

[0057] The cross-section of the prism 10 located outside the rotating shaft 8 is larger than the cross-section of the end located inside the rotating shaft 8. The side of the prism 10 with its large diameter end near its small diameter end has a beveled angle. A force-bearing bracket 13 is provided on the side of the prism 10 with its large diameter end near its small diameter end. The lower end of the force-bearing bracket 13 is in the shape of a right-angled U. The small diameter end of the prism 10 is located inside the U-shaped opening of the force-bearing bracket 13. The lower end of the force-bearing bracket 13 can move up and down through the bottom wall of the outer shell 2 of the device. When the intelligent sensing and measuring component 1 moves downward, it will apply pressure to the force-bearing bracket 13. When the force-bearing bracket 13 moves downward, it will make the prism 10 coaxial with the bevel gear meshing component 11. After the force-bearing bracket 13 is subjected to the pressure of the intelligent sensing and measuring component 1, the force-bearing bracket 13 will apply a pushing force to the bevel of the prism 10, gradually pushing the prism 10 out of the rotating shaft 8, so that the prism 10 and the corresponding bevel gear can rotate synchronously after coaxial engagement.

[0058] The inner walls of both sides of the device housing 2 are equipped with a rotatable lifting control mechanism 12. The lifting control mechanism 12 can control the intelligent sensing and measuring component 1 to move upward. The intelligent sensing and measuring component 1 is located between the two lifting control mechanisms 12. The two lifting control mechanisms 12 are coaxially installed with one bevel gear of each of the two bevel gear meshing components 11. The lifting control mechanism 12 is set perpendicular to the rotating shaft 8.

[0059] The lifting control mechanism 12 includes a threaded shaft 121, an engaging tension sleeve 122, and a pull plate 123. The pull plate 123 and the engaging tension sleeve 122 are both able to move up and down and are fitted against the inner wall of the device housing 2. The pull plate 123 is slidably sleeved on the outside of the threaded shaft 121, and the engaging tension sleeve 122 is threadedly sleeved on the outer surface of the threaded shaft 121. During the forward and reverse rotation of the threaded shaft 121, the engaging tension sleeve 122 can be driven to move up and down respectively. The engaging tension sleeve 122 is located on the upper side of the pull plate 123. The engaging tension sleeve 122 and the pull plate 123 move vertically elastically. The elastic connection is preferably a spring, which has a tendency to pull the pull plate 123 and the engaging tension sleeve 122 closer to each other.

[0060] The lower end of the threaded shaft 121 rotates through the inner bottom wall of the device housing 2. The threaded shaft 121 can elastically twist relative to the device housing 2. The elastic connection between the threaded shaft 121 and the device housing 2 is preferably a torsion spring. When the fan 9 drives the threaded shaft 121 to rotate through the transmission, the threaded shaft 121 stores power by turning the knob. At the same time, the engaging tension sleeve 122 engages with the threaded shaft 121 as it rotates by the knob storing power. The engaging tension sleeve 122 gradually moves upward. The threaded shaft 121 is coaxially installed with the bevel gear corresponding to the bevel gear engagement assembly 11. The threaded shaft 121 is set perpendicular to the rotating shaft 8. When the rotating shaft 8 rotates, the threaded shaft 121 is driven to rotate through the transmission of the prism shaft 10 and the bevel gear engagement assembly 11.

[0061] A baffle 124 is attached to the upper side of the pull plate 123. The baffle 124 is horizontally movable and is installed through the side of the device housing 2. The baffle 124 is elastically connected to the device housing 2. The upper surface of the baffle 124 on the upper part of the pull plate 123 is inclined. When the intelligent sensing and measuring component 1 falls to the bottom, the baffle 124 blocks the upper side of the pull plate 123, so that the engaging tension sleeve 122 moves upward and first elastically away from the pull plate 123, thus elastically storing force on the pull plate 123.

[0062] The baffle 124 is fixed to one end of the outer casing 2 of the device with an isosceles triangular rod 125. The upper and lower surfaces of the isosceles triangular rod 125 are inclined surfaces. A push rod 126 is provided on the lower side of the isosceles triangular rod 125. The push rod 126 is fixed to the bent rod 72. When the wind force on the wind-sensing plate 4 decreases and swings downward, the bent rod 72 and the upright rod 73 move downward synchronously. After the push rod 126 and the bent rod 72 move downward synchronously and apply a pushing force to the inclined surface of the isosceles triangular rod 125, the baffle 124 is pushed away from the upper side of the pull plate 123, so that the pull plate 123 moves upward under the elastic storage force of the engaging tension sleeve 122.

[0063] A linkage frame 131 is fixed on the upper surface of the force-bearing frame 13. The upper end of the linkage frame 131 is bent horizontally towards the axis of the device housing 2. The bottom surface of the intelligent sensing and measuring component 1 applies pressure to the force-bearing frame 13 through the pressure frame 132 installed at its bottom. The pressure frame 132 is located below the horizontally bent end of the linkage frame 131. The pull plate 123 moves upward and pushes the intelligent sensing and measuring component 1 upward through the pressure frame 132. When the pull plate 123 moves upward, it drives the intelligent sensing and measuring component 1 to reset upward through the pressure frame 132. After the intelligent sensing and measuring component 1 moves to the upper side of the corresponding position of the support frame 3, it continues to move upward and pushes the upper end of the linkage frame 131, pulling the force-bearing frame 13 upward to disengage from the prism 10 and the rotating shaft 8. At the same time, the prism 10 gradually disengages from the corresponding bevel gear under the elastic tension of the rotating shaft 8. After the prism 10 disengages from the corresponding bevel gear, the threaded shaft 121 reverses and resets under the elastic storage between it and the device housing 2, driving the meshing tension sleeve 122 and the pull plate 123 to reset downward.

[0064] A reset rope 31 is installed on the upper surface of the support frame 3. The reset rope 31 slides through the outer surface of the device housing 2. A slider 32 is fixed at one end of the reset rope 31 inside the device housing 2. The slider 32 is slidably inserted into the inner wall of the device housing 2. A reset frame 33 is provided on the lower side of the slider 32. The reset frame 33 is installed at the bottom of the intelligent sensing and measuring component 1. A groove is opened on the inner wall of the device housing 2 for the slider 32 and the reset frame 33 to move. After the support frame 3 moves outward from the device housing 2 and disengages from the lower side of the intelligent sensing and measuring component 1, the reset rope 31 is taut. Then the slider 32 is in the lowest position. After the intelligent sensing and measurement component 1 is reset and moved to the corresponding height of the support frame 3, it continues to move upward. The intelligent sensing and measurement component 1 pushes the slider 32 upward through the reset frame 33, and pulls the support frame 3 back to the lower side of the intelligent sensing and measurement component 1 through the reset rope 31. Then, the intelligent sensing and measurement component 1 applies an upward push to the linkage frame 131, causing the engagement tension sleeve 122 and the pull plate 123 to move downward. The intelligent sensing and measurement component 1 falls downward with the engagement tension sleeve 122 and the pull plate 123 to the upper side of the support frame 3, so that the support frame 3 supports the intelligent sensing and measurement component 1 again.

[0065] In this embodiment, the highest position of the engagement tension sleeve 122 and the pull plate 123 on the surface of the threaded shaft 121 ensures that the height at which the intelligent sensing and measuring component 1 is pulled upward is sufficient to drive the support frame 3 to move back to the lower support of the intelligent sensing and measuring component 1 by pushing the slider 32 to pull the reset rope 31.

[0066] In this embodiment, the elastic force between the elastic components satisfies the motion conditions between the structures.

[0067] In this embodiment, when the reciprocating cycles of strong and weak winds occur rapidly, the number of rotations of fan 9 is insufficient to push the intelligent sensing and measurement component 1 to reset upwards. This prevents the intelligent sensing and measurement component 1 from repeatedly moving upwards due to the rapidly alternating strong winds, thus protecting it from repeated impacts. After the threaded shaft 121 reaches its maximum knob position and the engaging tension sleeve 122 moves to its uppermost position, the passing wind force will no longer push fan 9 to rotate, allowing fan 9 to be in the position of maximum wind rotation under the action of the ratchet and tooth assembly.

[0068] The working principle is as follows: In the wind force measurement of the intelligent sensing and measurement component 1, the support frame 3 supports the bottom of the intelligent sensing and measurement component 1, so that the upper end of the intelligent sensing and measurement component 1 is located outside the outer shell 2 of the device to detect the wind force. At the same time, the detected wind force enters the wind-gathering box 5 from one end and applies a thrust to the wind-sensing plate 4. As the wind force increases, the rotation angle of the wind-sensing plate 4 gradually increases. Through the shaft 6 and the linkage mechanism 7, the support frame 3 is gradually moved out from the underside of the intelligent sensing and measurement component 1. After the wind-sensing plate 4 rotates to a certain angle, the support frame 3 is detached from the underside of the intelligent sensing and measurement component 1, so that the intelligent sensing and measurement component 1 quickly retracts into the outer shell 2 of the device under its own weight. The outer shell 2 of the device protects the intelligent sensing and measurement component 1 inside, preventing the intelligent sensing and measurement component 1 from being damaged due to the large wind force.

[0069] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A wind pressure measurement device based on intelligent sensing elements, comprising an intelligent sensing measurement component (1) and a device housing (2), characterized in that: The intelligent sensing and measurement component (1) is installed inside the device housing (2). The intelligent sensing and measurement component (1) can move up and down inside the device housing (2). Support frames (3) are installed on both sides of the device housing (2) and below the intelligent sensing and measurement component (1). The support frames (3) can move along the direction perpendicular to the side of the device housing (2). The intelligent sensing and measurement component (1) includes: The base (14) is fixed inside the outer casing (2) of the device; An elastic cantilever beam (15) is fixed at its root to the base (14); The flexible composite sensing unit (16) is disposed at the free end of the elastic cantilever beam (15), with its sensing surface facing the direction of the wind pressure flow. The flexible composite sensing unit (16) deforms in response to the wind pressure and outputs a corresponding electrical signal. The elastic cantilever beam (15) comprises highly elastic stainless steel sheets; The flexible composite sensing unit (16) includes a flexible substrate, a sensitive diaphragm, and wires; The base (14) is used to fix the high elastic stainless steel sheet; the flexible substrate is placed in the groove of the high elastic stainless steel sheet and together with the steel sheet serves as a carrier for the sensitive membrane; the sensitive membrane is deposited with clusters of dots and is glued to both ends of the groove of the high elastic stainless steel sheet. The outer shell (2) of the device is equipped with air collection boxes (5) on both sides of the two support frames (3). The air collection boxes (5) are vertically fitted with air sensing plates (4) inside. The two air sensing plates (4) rotate relative to the two air collection boxes (5) through the same shaft (6). The shaft (6) passes through the outside of the outer shell (2) of the device and is elastically twisted relative to the outer shell (2). The shaft (6) is equipped with a linkage mechanism (7) at one end of the shaft (6) outside the air collection box (5) to control the support frame (3) to move outward from the outer shell (2) of the device. The linkage mechanism (7) includes a synchronous shift plate (71), a bent rod (72) and a vertical rod (73). The vertical rod (73) is fitted to the outside of the device housing (2). The device housing (2) is sleeved on the outside of the vertical rod (73) and can move vertically relative to it. The vertical rod (73) is vertically elastically connected to the device housing (2). One end of the synchronous shift plate (71) is fixed to the shaft (6). The bent rod (72) is divided into a vertical part and a horizontal part. The vertical part of the bent rod (72) is located on the upper side of the synchronous shift plate (71), and the horizontal part of the bent rod (72) is installed on one side of the vertical rod (73). The upper end of the upright (73) is inclined on the side away from the outer shell (2) of the device. The two uprights (73) are located on the lower side of the two support frames (3) respectively. The support frame (3) is inclined on the lower side of the upper part of the corresponding upright (73) close to the outer shell (2).

2. The wind pressure measuring device based on intelligent sensing elements according to claim 1, characterized in that: The air collecting box (5) is provided with a rotating shaft (8) on the side near the device housing (2). The device housing (2) is rotatably sleeved on the outside of the rotating shaft (8). A ratchet tooth assembly that limits the unidirectional rotation of the rotating shaft (8) is installed on the outside of the device housing (2). A fan (9) is installed on the outside of the rotating shaft (8) at the air outlet of the air collecting box (5). The rotating shaft (8) is located inside the device housing (2) and one end is coaxially mounted with a prism shaft (10) that can move along the axis. The prism shaft (10) is elastically connected to the rotating shaft (8). A bevel gear meshing assembly (11) is provided on the side of the prism shaft (10) away from the connected rotating shaft (8). The prism shaft (10) can coaxially cooperate with one bevel gear of the bevel gear meshing assembly (11) during movement. A rotatable lifting control mechanism (12) is installed on both sides of the inner wall of the device housing (2). The lifting control mechanism (12) can control the intelligent sensing measurement component (1) to move upward. The intelligent sensing measurement component (1) is located between the two lifting control mechanisms (12). The two lifting control mechanisms (12) are coaxially mounted with one bevel gear of each of the two bevel gear meshing assemblies (11). The lifting control mechanism (12) is set perpendicular to the rotating shaft (8).

3. The wind pressure measuring device based on intelligent sensing elements according to claim 2, characterized in that: The cross-section of the prism (10) at the outer end of the rotating shaft (8) is larger than the cross-section at the inner end of the rotating shaft (8). The large diameter end of the prism (10) is angled near its small diameter end. A force-bearing frame (13) is provided on the side of the large diameter end of the prism (10) near its small diameter end. The lower end of the force-bearing frame (13) is a right-angled U-shape. The small diameter end of the prism (10) is inside the U-shaped opening of the force-bearing frame (13). The lower end of the force-bearing frame (13) can move up and down through the inner bottom wall of the outer shell (2) of the device. When the intelligent sensing and measuring component (1) moves downward, it will apply pressure to the force-bearing frame (13). When the force-bearing frame (13) moves downward, it will make the prism (10) coaxial with the bevel gear meshing component (11).

4. The wind pressure measuring device based on intelligent sensing elements according to claim 3, characterized in that: The lifting control mechanism (12) includes a threaded shaft (121), a meshing tension sleeve (122), and a pull plate (123). The pull plate (123) and the meshing tension sleeve (122) are both able to move up and down and are fitted together on the inner wall of the device housing (2). The pull plate (123) is slidably sleeved on the outside of the threaded shaft (121). The meshing tension sleeve (122) is threadedly sleeved on the outer surface of the threaded shaft (121). The meshing tension sleeve (122) is located on the upper side of the pull plate (123). The meshing tension sleeve (122) and the pull plate (123) can move vertically elastically. The lower end of the threaded shaft (121) rotates through the inner bottom wall of the device housing (2). The threaded shaft (121) can elastically twist relative to the device housing (2). The threaded shaft (121) and the bevel gear corresponding to the bevel gear meshing assembly (11) are coaxially installed. The threaded shaft (121) is perpendicular to the rotating shaft (8). A baffle (124) is attached to the upper side of the pull plate (123). The baffle (124) can be horizontally moved and is installed through the side of the device housing (2). The baffle (124) is elastically connected to the device housing (2). The upper surface of the baffle (124) on the upper side of the pull plate (123) is inclined.

5. The wind pressure measuring device based on intelligent sensing elements according to claim 4, characterized in that: The stop (124) is fixed to one end of the device housing (2) with an isosceles triangular rod (125). The upper and lower surfaces of the isosceles triangular rod (125) are inclined surfaces. A push rod (126) is provided on the lower side of the isosceles triangular rod (125). The push rod (126) is fixed to the bent rod (72).

6. A wind pressure measuring device based on an intelligent sensing element according to claim 3 or 4, characterized in that: The upper surface of the force-bearing frame (13) is fixed with a linkage frame (131). The upper end of the linkage frame (131) is bent horizontally toward the axis of the device housing (2). The bottom surface of the intelligent sensing and measurement component (1) applies pressure to the force-bearing frame (13) through the pressure frame (132) installed at its bottom. The pressure frame (132) is located below the horizontally bent end of the linkage frame (131). The pull plate (123) moves upward and pushes the intelligent sensing and measurement component (1) upward through the pressure frame (132).

7. A wind pressure measuring device based on an intelligent sensing element according to claim 4, characterized in that: A reset rope (31) is installed on the upper surface of the support frame (3). The reset rope (31) slides through the outer surface of the device housing (2). A slider (32) is fixed at one end of the reset rope (31) inside the device housing (2). The slider (32) slides into the inner wall of the device housing (2). A reset frame (33) is provided on the lower side of the slider (32). The reset frame (33) is installed at the bottom of the intelligent sensing and measurement component (1). A groove is provided on the inner wall of the device housing (2) for the slider (32) and the reset frame (33) to move.

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