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CN-224225306-U - Unmanned aerial vehicle airspeed height detection instrument

CN224225306UCN 224225306 UCN224225306 UCN 224225306UCN-224225306-U

Abstract

The utility model relates to an unmanned aerial vehicle airspeed height detection tool, which belongs to the field of unmanned aerial vehicle sensor detection and comprises a balloon, a connecting sleeve, a sleeve and two one-way valves. One end of the balloon is provided with an exhaust port, the other end of the balloon is in sealing butt joint with the sleeve, two air holes communicated with the inner cavity of the balloon are arranged in the sleeve, one end of the sleeve is provided with an air inlet and an air outlet which are respectively in butt joint with the two air holes of the sleeve, and the other end of the sleeve is open. The air inlet hole is communicated with the air inlet cavity in the pipe sleeve, the air outlet hole is communicated with the air outlet cavity in the pipe sleeve, the opening is communicated with the air inlet cavity, and the end, far away from the air outlet, of the air outlet cavity is provided with an inlet communicated with the air inlet cavity. The air inlet one-way valve is arranged in the air inlet, and the air outlet one-way valve is arranged in the air outlet. And a airspeed tube is arranged in the air inlet cavity of the tube sleeve, the tube orifice of the airspeed tube faces the air inlet one-way valve, and the height hole of the airspeed tube corresponds to the position of the access port. The detection tool can realize the detection of airspeed and altitude by operating the balloon, and solves the problem that the existing detection airspeed and altitude have no detection tool.

Inventors

  • LI HAICHAO
  • DONG WENTAO
  • WANG YACHAO
  • LIU SHUANGQI
  • WEN KUO

Assignees

  • 西安爱生技术集团有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (8)

  1. 1. An unmanned aerial vehicle airspeed height detection tool, characterized by comprising: The balloon is provided with an exhaust port at one end and a connecting sleeve at the other end in a sealing way, wherein a first air hole and a second air hole are arranged in the connecting sleeve, and the first air hole and the second air hole are communicated with the inner cavity of the balloon; The air inlet hole is communicated with the air inlet cavity in the pipe sleeve, the air outlet hole is communicated with the air outlet cavity in the pipe sleeve, and one end of the air outlet cavity away from the air outlet is provided with an access port communicated with the air inlet cavity; An air inlet one-way valve arranged at the joint of the first air hole and the air inlet, one end of the air pipe is positioned in the first air hole, the other end is positioned in the air inlet; And an air outlet one-way valve which is arranged at the joint of the second air hole and the air outlet hole, one end of the air pipe is positioned in the second air hole, the other end is positioned in the air outlet hole; The air inlet cavity of the pipe sleeve is internally provided with an airspeed tube of the unmanned aerial vehicle, the tube orifice of the airspeed tube faces the air inlet one-way valve, the height hole of the airspeed tube corresponds to the axial position of the access port, and the tail end dynamic pressure interface and the static pressure interface of the airspeed tube are positioned at the open end of the pipe sleeve.
  2. 2. The unmanned aerial vehicle airspeed height detection tool of claim 1, wherein the air inlet chamber and the air outlet chamber are two independent chambers within the shroud that communicate only at the access port.
  3. 3. The unmanned aerial vehicle airspeed height detection tool according to claim 1, wherein when the air inlet check valve works, air in the balloon flows through the air inlet check valve to enter the air inlet cavity, and the air outlet check valve is closed at the moment, and when the air outlet check valve works, air in the air outlet cavity flows through the air outlet check valve to enter the balloon, and the air inlet check valve is closed at the moment.
  4. 4. The unmanned aerial vehicle airspeed height detection tool according to claim 1, wherein the sleeve is an elastic sleeve, and the middle of the sleeve is axially provided with a conical surface for matching with the conical surface at the front end of the airspeed tube, and the air inlet cavity in the sleeve is matched with the external dimension of the airspeed tube.
  5. 5. The tool for detecting the airspeed height of the unmanned aerial vehicle according to claim 4, wherein the conical surface of the pipe sleeve is provided with an exhaust hole which is communicated with the air inlet cavity, and the exhaust hole is used for exhausting redundant air in the air inlet cavity when the airspeed tube is inserted into the air inlet cavity.
  6. 6. The unmanned aerial vehicle airspeed height detection tool of claim 1, wherein the inner wall of the open end of the shroud near the edge is provided with an annular projection for sealing against the outer wall of the pitot tube and preventing the pitot tube from backing out of the shroud.
  7. 7. The unmanned aerial vehicle airspeed height detection tool of claim 6, wherein the access port is located inside the annular projection.
  8. 8. The unmanned aerial vehicle airspeed height detection tool of claim 1, wherein the balloon is of an extruded resilient, oval-spherical hollow structure.

Description

Unmanned aerial vehicle airspeed height detection instrument Technical Field The utility model relates to the field of unmanned aerial vehicle sensor detection, in particular to an unmanned aerial vehicle airspeed height detection tool. Background Unmanned aerial vehicles are widely used in military and civil fields. With the development of unmanned aerial vehicle technology, on-board sensors are also increasing, and as a dynamic and static pressure sensor for measuring airspeed and altitude, the on-board sensors are indispensable devices on unmanned aerial vehicles. The dynamic and static pressure sensors cannot directly measure the airspeed and the altitude of the unmanned aerial vehicle, and the airspeed tube is connected through a pipeline to jointly finish measurement. Airspeed tube, pipeline, dynamic pressure sensor and static pressure sensor have formed unmanned aerial vehicle airspeed height measurement system jointly. When the whole unmanned aerial vehicle system is detected, whether a dynamic pressure pipeline from a pipe orifice of the airspeed tube to the dynamic pressure sensor is normal or not (called detection airspeed) needs to be detected, and whether a static pressure pipeline from a height hole of the airspeed tube to the static pressure sensor is normal or not (called detection height) needs to be detected so as to confirm that the dynamic pressure sensor and the static pressure sensor are in a normal measurement state. As shown in FIG. 1, FIG. 1 is a structure diagram of a airspeed tube, an operator blows air to a tube orifice at the forefront end of the airspeed tube by using a mouth to check the change of a dynamic pressure sensor when detecting airspeed, and sucks air at a height hole attached to the outer wall of the airspeed tube by using a lip to check the change of the static pressure sensor when detecting height. The pipe orifice at the front end of the airspeed tube is communicated with the dynamic pressure interface at the tail end of the airspeed tube through an internal air passage, the dynamic pressure interface is communicated with the dynamic pressure sensor through a pipeline, the height hole of the airspeed tube is communicated with the static pressure cavity in the airspeed tube, the static pressure cavity is communicated with the static pressure interface at the tail end of the airspeed tube, and the static pressure interface is communicated with the static pressure sensor through a pipeline. The static pressure and dynamic pressure air passages formed in the airspeed tube are not communicated with each other. The height holes are provided with two groups of 5 holes, and are positioned on the same circumference of the outer wall of the static pressure cavity. The nozzle at the front end of the airspeed tube is used for sensing the flow rate of air, the altitude hole is used for sensing the pressure of the atmosphere, when the air is blown against the nozzle at the front end of the airspeed tube, the dynamic pressure sensor senses the pressure increase and displays the airspeed increase, and when the air is sucked against the altitude hole, the static pressure sensor senses the pressure decrease and displays the altitude increase. The detection method has the advantages that saliva, foreign matters and the like in the oral cavity of a human body are easy to blow into the airspeed tube to cause blockage in the airspeed tube when the airspeed is detected, lips are easy to adhere to the metal surface of the airspeed tube and tear to cause injury to operators due to cold winter or high altitude detection in high altitude areas, and the blowing suction degree cannot be accurately controlled by blowing and sucking the airspeed tube and the altitude hole by the operators, so that the damage to the dynamic pressure sensor and the static pressure sensor is easy to be caused. Accordingly, there is a need to provide an unmanned aerial vehicle airspeed altitude detection tool that addresses the above-described issues. Disclosure of Invention The technical problems to be solved are as follows: In order to avoid the defects of the prior art, the utility model provides an unmanned aerial vehicle airspeed height detection tool, which is characterized in that an air inlet one-way valve and an air outlet one-way valve are arranged at the joint of a balloon and a pipe sleeve in a matched butt joint way, two cavities in the pipe sleeve are respectively communicated, an airspeed tube is arranged in the cavity communicated with the air inlet one-way valve, the airspeed and the height can be detected by operating a control balloon, and the problem that the existing unmanned aerial vehicle airspeed height detection tool is not used for detecting the airspeed of the unmanned aerial vehicle is solved. The technical scheme of the utility model is that the unmanned aerial vehicle airspeed height detection tool comprises: The balloon is provided with an exhaust port at one end and a connecting sle