A magnetic quick-release pitot tube device and airspeed measurement equipment

Abstract

The present invention discloses a magnetic quick-release pitot tube device and an airspeed device to be measured, wherein the magnetic quick-release pitot tube device comprises a magnetic housing and a pitot tube; the pitot tube is fixed in the magnetic housing, and the measuring end of the pitot tube extends outward through the magnetic housing; a magnetic assembly is provided on the magnetic housing, and the magnetic housing is magnetically connected to the airspeed device to be measured through the magnetic assembly. In an embodiment of the present invention, the magnetic quick-release pitot tube device comprises a magnetic housing and a pitot tube, and the magnetic housing can well fix and protect the pitot tube, and can be magnetically connected to the airspeed device to be measured through the magnetic assembly. When encountering external force, it will detach from the airspeed device to be measured, thereby avoiding damage to the overall structure of the airspeed device to be measured.

Description

Technical Field

[0001] The present invention relates to the technical field of pitot tubes, and in particular to a magnetic quick-release pitot tube device and an airspeed measurement device. Background Art

[0002] Obtaining accurate airspeed values ​​during flight directly affects flight quality and safety. In recent years, with the rapid development of the drone industry, the requirements for pitot tubes have also increased.

[0003] Traditional pitot tubes are typically fixed and protrudingly installed at the front of the aircraft nose. During ground transportation, maintenance, testing, and operation, these protruding pitot tubes are easily damaged by collisions, affecting the normal operation of the aircraft. Furthermore, since the pitot tube and the aircraft are integrally manufactured, collision damage to the pitot tube destroys the entire structure, resulting in significant repair costs and lead times, impacting the aircraft's availability. Summary of the Invention

[0004] The object of the present invention is to overcome the shortcomings of the prior art. The present invention provides a magnetic quick-release pitot tube device and an airspeed device to be measured. The magnetic quick-release pitot tube device includes a magnetic housing and a pitot tube. The magnetic housing can well fix and protect the pitot tube and can be magnetically connected to the airspeed device to be measured through a magnetic assembly. Through this design, the magnetic quick-release pitot tube device will be separated from the airspeed device to be measured when encountering external force, thereby avoiding damage to the overall structure of the airspeed device to be measured; in addition, in the airspeed device to be measured, the magnetic quick-release pitot tube device and the airspeed device to be measured have two magnetic installation states, namely a working state and a storage state that can be quickly switched: in the working state, the pitot tube in the magnetic quick-release pitot tube device can measure the airspeed value; in the storage state, the pitot tube in the magnetic quick-release pitot tube device faces downward, effectively avoiding the pitot tube hitting the packaging box during transportation, thereby causing the pitot tube to be blocked.

[0005] Accordingly, an embodiment of the present invention provides a magnetic quick-release pitot tube device, which includes a magnetic housing and a pitot tube;

[0006] The pitot tube is fixed in the magnetic housing, and the measuring end of the pitot tube extends outward through the magnetic housing;

[0007] The magnetic housing is provided with a magnetic component, and the magnetic housing is magnetically connected to the airspeed device to be measured through the magnetic component.

[0008] In an optional embodiment, the magnetic housing includes a top surface and a front surface and a rear surface that are oppositely disposed;

[0009] The measuring end of the pitot tube extends outward through the front end surface, and a first air inlet is provided on the end surface of the measuring end of the pitot tube, and a second air inlet is provided on the outer peripheral wall of the measuring end of the pitot tube;

[0010] The magnetic attraction component includes a first magnetic attraction component arranged on the top surface and a second magnetic attraction component arranged on the rear end surface. The magnetic attraction housing is magnetically connected to the airspeed device to be measured through the first magnetic attraction component, or the magnetic attraction housing is magnetically connected to the airspeed device to be measured through the second magnetic attraction component.

[0011] In an optional embodiment, the pitot tube includes a first tube segment, a tapered tube segment, and a second tube segment that are coaxially arranged, wherein the outer diameter of the first tube segment is larger than the outer diameter of the second tube segment, and the first tube segment is connected to the second tube segment through the tapered tube segment;

[0012] The first pipe section is fixed in the magnetic housing, the conical pipe section and the second pipe section extend outward through the front end surface, the second pipe section is the measuring end of the pitot tube, the first air inlet is arranged on the pipe section end surface of the second pipe section, and the second air inlet is arranged on the outer peripheral wall of the second pipe section.

[0013] In an optional embodiment, a fixing hole is provided on the top surface;

[0014] The outer wall of the first pipe section is provided with a pitot tube fixing piece, and the pitot tube fixing piece is provided with a pitot tube fixing hole corresponding to the fixing hole position;

[0015] The pitot tube fixing piece is fixed in the magnetic housing based on the cooperation of a fastener, the pitot tube fixing hole and the fixing hole position.

[0016] In an optional embodiment, a shell through hole is provided on the front end face, the aperture of the shell through hole is adapted to the outer diameter of the first pipe segment, the first pipe segment is embedded in the shell through hole, and the conical pipe segment and the second pipe segment extend outward through the shell through hole.

[0017] In an optional embodiment, the first magnetic assembly includes a first magnetic member and a second magnetic member provided in a protruding manner, the first magnetic member and the second magnetic member are symmetrically arranged on both sides of a center line of the top surface, and a first distance is provided between the first magnetic member and the second magnetic member;

[0018] The second magnetic assembly includes a third magnetic member and a fourth magnetic member that are recessed, the third magnetic member and the fourth magnetic member being symmetrically arranged on both sides of a center line of the rear end face, and a second distance being provided between the third magnetic member and the fourth magnetic member;

[0019] The first interval and the second interval are the same in size.

[0020] In addition, an embodiment of the present invention further provides an airspeed device to be measured, the airspeed device to be measured comprising a pressure differential sensor, a housing connection portion, and the aforementioned magnetic quick-release pitot tube device;

[0021] The magnetic housing is magnetically connected to the housing connection portion via the magnetic assembly, and the magnetic housing is flexibly connected to the interior of the airspeed device to be measured;

[0022] The pressure difference sensor is used to obtain the air pressure difference between the first air inlet and the second air inlet.

[0023] In an optional embodiment, the shell connecting portion includes a connecting bottom surface and a connecting side surface, the connecting bottom surface is adapted to the top surface, the connecting side surface is adapted to the rear end surface, a third magnetic attraction component is provided on the connecting bottom surface, and a fourth magnetic attraction component is provided on the connecting side surface;

[0024] The top surface is magnetically connected to the connection bottom surface based on the cooperation between the first magnetic attraction component and the third magnetic attraction component, and the rear end surface is magnetically connected to the connection side surface based on the cooperation between the second magnetic attraction component and the fourth magnetic attraction component; or

[0025] The top surface is magnetically connected to the connection side surface based on the cooperation between the first magnetic attraction component and the fourth magnetic attraction component, and the rear end surface faces the connection bottom surface.

[0026] In an optional embodiment, the third magnetic assembly includes a fifth magnetic member and a sixth magnetic member that are recessed, the fifth magnetic member and the sixth magnetic member being symmetrically arranged on both sides of a center line of the connecting bottom surface, and a third distance being formed between the fifth magnetic member and the sixth magnetic member;

[0027] The fourth magnetic assembly includes a seventh magnetic member and an eighth magnetic member provided in a protruding manner, wherein the seventh magnetic member and the eighth magnetic member are symmetrically arranged on both sides of the center line of the connecting side surface, and a fourth distance is formed between the seventh magnetic member and the eighth magnetic member;

[0028] The first interval, the second interval, the third interval, and the fourth interval are the same in size.

[0029] An embodiment of the present invention provides a magnetic quick-release pitot tube device and an airspeed device to be measured. The magnetic quick-release pitot tube device includes a magnetic housing and a pitot tube. The magnetic housing fixes and protects the pitot tube, and the magnetic housing can be magnetically connected to the airspeed device to be measured through a magnetic assembly. Through this design, the magnetic quick-release pitot tube device will detach from the airspeed device to be measured when encountering external forces, avoiding damage to the overall structure of the airspeed device to be measured, and has good practicality. In addition, in the airspeed device to be measured, the magnetic quick-release pitot tube device and the airspeed device to be measured have two magnetic installation states, namely a working state and a storage state that can be quickly switched: in the working state, the pitot tube in the magnetic quick-release pitot tube device can measure the airspeed value; in the storage state, the pitot tube in the magnetic quick-release pitot tube device faces downward, effectively avoiding the pitot tube from colliding with the packaging box during transportation, thereby causing the pitot tube to become blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 3D structural exploded view of the magnetic quick-release pitot tube device according to an embodiment of the present invention;

[0032] Figure 2 2. It is an exploded diagram of the connection between the magnetic quick-release pitot tube device and the airspeed device to be measured in an embodiment of the present invention;

[0033] Figure 3 is a side view of the airspeed device to be measured in the working state according to an embodiment of the present invention;

[0034] Figure 4 FIG. 1 is a side view of the airspeed device to be measured in the storage configuration according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] Figure 1This is a three-dimensional structural exploded view of the magnetic quick-release pitot tube device according to an embodiment of the present invention. Figure 2 Schematic diagram of the explosion connection between the magnetic quick-release pitot tube device and the airspeed device to be measured in an embodiment of the present invention.

[0037] An embodiment of the present invention provides a magnetic quick-release pitot tube device, which includes a magnetic housing 2 and a pitot tube 3 .

[0038] The pitot tube 3 is fixed in the magnetic housing 2 , and a measuring end of the pitot tube 3 extends outward through the magnetic housing 2 to obtain the air pressure of the external environment.

[0039] The magnetic housing 2 is provided with a magnetic component, and the magnetic housing 2 is magnetically connected to the airspeed device 1 to be measured through the magnetic component. The magnetic connection method facilitates the disassembly and installation of the magnetic quick-release pitot tube device.

[0040] In a specific implementation, the pitot tube 3 is fixed and protected by the magnetic housing 2, and the magnetic housing 2 is magnetically connected to the airspeed device to be measured 1 through a magnetic component to achieve a fixed connection between the pitot tube 3 and the airspeed device to be measured 1. Through this design, the magnetic quick-release pitot tube device will be detached from the airspeed device to be measured 1 when encountering external force, avoiding damage to the overall structure of the airspeed device to be measured 1, and has good practicality.

[0041] Specifically, the magnetic housing includes a top surface 22 and a front surface 21 and a rear surface 23 that are oppositely arranged.

[0042] The measuring end of the pitot tube 3 extends outward through the front end surface 21, that is, the measuring end of the pitot tube 3 is exposed to the magnetic housing 2. A first air inlet 31 is provided on the end surface of the measuring end of the pitot tube 3, and a second air inlet 32 ​​is provided on the outer peripheral wall of the measuring end of the pitot tube 3. In a specific implementation, the air pressure difference between the first air inlet 31 and the second air inlet 32 ​​is obtained by a pressure differential sensor to measure the airspeed value.

[0043] The pitot tube 3 includes a coaxially arranged first tube section 33 , a tapered tube section 34 and a second tube section 35 . The outer diameter of the first tube section 33 is larger than the outer diameter of the second tube section 35 . The first tube section 33 is connected to the second tube section 35 through the tapered tube section 34 .

[0044] The first tube section 33 is fixed in the magnetic housing 2. There are many ways to fix the first tube section 33 in the magnetic housing 2. In an embodiment of the present invention, a fixing hole 221 is provided on the top surface 22, and a pitot tube fixing member 331 is provided on the outer wall of the first tube section 33. A pitot tube fixing hole 3311 corresponding to the fixing hole 221 is provided on the pitot tube fixing member 331. The pitot tube fixing member 331 is fixed in the magnetic housing 2 based on the cooperation of fasteners such as bolts or screws with the pitot tube fixing hole 3311 and the fixing hole 221. In this way, one end of the pitot tube 3 is fixed in the magnetic housing 2, which has the advantages of firm and stable connection and convenient disassembly and assembly.

[0045] The conical tube section 34 and the second tube section 35 extend outward through the front end face 21. In the embodiment of the present invention, a housing through-hole 211 is provided on the front end face 21. The diameter of the housing through-hole 211 is adapted to the outer diameter of the first tube section 33. The first tube section 33 is embedded in the housing through-hole 211. The conical tube section 34 and the second tube section 35 extend outward through the housing through-hole 211, fixing the other end of the pitot tube 3 in the housing through-hole 211, further fixing the pitot tube 3 in position and ensuring that the pitot tube 3 does not shift during movement.

[0046] In an embodiment of the present invention, the second pipe section 35 is the measuring end of the pitot tube 3, and the second pipe section 35 is exposed to the magnetic housing 2. Therefore, the first air inlet 31 is set on the end face of the second pipe section 35, and the second air inlet 32 ​​is set on the outer peripheral wall of the second pipe section 35.

[0047] The magnetic component includes a first magnetic component 222 arranged on the top surface 22 and a second magnetic component 231 arranged on the rear end surface 23. The magnetic housing 2 is magnetically connected to the airspeed device 1 to be measured based on the first magnetic component 222 and the second magnetic component 231, which has the advantage of simple and convenient connection.

[0048] The first magnetic component 222 includes a first magnetic part 2221 and a second magnetic part 2222 that are protruding. The first magnetic part 2221 and the second magnetic part 2222 are symmetrically arranged on both sides of the center line of the top surface 22. There is a first distance between the first magnetic part 2221 and the second magnetic part 2222.

[0049] There are many ways to implement the first magnetic component 2221 and the second magnetic component 2222 that are protruded onto the top surface 22. In an embodiment of the present invention, a first boss 223 and a second boss 224 are provided on the top surface 22. The first boss 223 and the second boss 224 are symmetrically provided on both sides of the center line of the top surface 22. The first boss 223 and the second boss 224 have the first spacing between them. The first magnetic component 2221 is provided on the first boss 223, and the second magnetic component 2222 is provided on the second boss 224. In this way, the first boss 223 and the second boss 224 are protruded onto the top surface 22.

[0050] Among them, the second magnetic component 231 includes a third magnetic component 2311 and a fourth magnetic component 2312 which are recessed. The third magnetic component 2311 and the fourth magnetic component 2312 are symmetrically arranged on both sides of the center line of the rear end face 23. There is a second distance between the third magnetic component 2311 and the fourth magnetic component 2312. The second distance is the same as the first distance to facilitate connection with the magnetic housing 2.

[0051] There are many ways to implement the third magnetic component 2311 and the fourth magnetic component 2312 that are recessed in the rear end face 23. In an embodiment of the present invention, a first groove and a second groove are provided on the rear end face 23, and the first groove and the second groove are symmetrically provided on both sides of the center line of the rear end face 23. The first groove and the second groove have the second spacing between them. The third magnetic component 2311 is provided in the first groove, and the fourth magnetic component 2312 is provided in the second groove. In this way, the third magnetic component 2311 and the fourth magnetic component 2312 are recessed in the rear end face 23.

[0052] An embodiment of the present invention provides a magnetic quick-release pitot tube device, which includes a magnetic housing 2 and a pitot tube 3. The pitot tube 3 is fixed and protected by the magnetic housing 2, and the magnetic housing 2 can be magnetically connected to the airspeed device to be measured 1 through a magnetic assembly. Through this design, the magnetic quick-release pitot tube device will be separated from the airspeed device to be measured when encountering external force, thereby avoiding damage to the overall structure of the airspeed device to be measured, and has good practicality.

[0053] Figure 3 1 is a side view of the airspeed device to be measured in the working state according to the embodiment of the present invention, Figure 4 FIG. 1 is a side view of the airspeed device to be measured in the storage configuration according to an embodiment of the present invention.

[0054] In addition, an embodiment of the present invention further provides an airspeed device 1 to be measured. The airspeed device 1 to be measured may be an airplane, an aircraft, an unmanned aerial vehicle, etc. The type of the airspeed device 1 to be measured is not limited in the embodiment of the present invention.

[0055] Specifically, the airspeed device to be measured 1 includes a pressure difference sensor, a housing connection portion 11 and the above-mentioned magnetic quick-release pitot tube device.

[0056] The differential pressure sensor is used to obtain the pressure difference between the first air inlet 31 and the second air inlet 32 ​​to measure the airspeed value.

[0057] The differential pressure sensor includes a first sensing diaphragm and a second sensing diaphragm. In an embodiment of the present invention, the differential pressure sensor can be installed inside the airspeed device 1 to be measured. The first air inlet 31 is connected to the first sensing diaphragm air path via a first air pipe 41, and the second air inlet 32 ​​is connected to the second sensing diaphragm air path via a second air pipe 42. The first air pipe 41 guides the airflow at the first air inlet 31 to the first sensing diaphragm, and the second air pipe 42 guides the airflow at the second air inlet 32 ​​to the second sensing diaphragm. In this way, the differential pressure sensor indirectly obtains the air pressure difference between the first air inlet 31 and the second air inlet 32, thereby measuring the airspeed value. In addition, the differential pressure sensor can also be installed in the magnetic quick-release pitot tube device, with the first sensing diaphragm installed at the first air inlet 31 and the second sensing diaphragm installed at the second air inlet 32. In this way, the differential pressure sensor directly obtains the air pressure difference between the first air inlet 31 and the second air inlet 32.

[0058] The magnetic housing 2 is magnetically connected to the housing connection portion 11 via the magnetic assembly, and the magnetic housing 2 is flexibly connected to the interior of the airspeed device 1 to be measured.

[0059] It should be noted that soft connection refers to the connection between objects achieved through soft connectors of irregular shapes such as hoses, ropes, connecting lines, etc. The soft connectors can be subjected to additional force to make the connection between objects more secure. In an embodiment of the present invention, the magnetic housing 2 is not only magnetically connected to the housing connection part 11 through the magnetic component, but the magnetic housing 2 is also softly connected to the interior of the airspeed device to be measured 1 through a soft connector. One end of the soft connector is connected to the magnetic housing 2, and the other end of the soft connector is connected to the interior of the airspeed device to be measured 1. Additional force is applied through the soft connector to make the connection between the magnetic quick-release airspeed tube device and the airspeed device to be measured 1 more secure; preferably, the soft connector is a hose 43.

[0060] Among them, the shell connecting part 11 includes a connecting bottom surface 111 and a connecting side surface 112, the connecting bottom surface 111 is adapted to the top surface 22, and the connecting side surface 112 is adapted to the rear end surface 23, that is, the connecting bottom surface 111 and the top surface 22 have the same shape, the connecting bottom surface 111 and the top surface 22 can be completely sealed and connected, the connecting side surface 112 and the rear end surface 23 have the same shape, and the connecting side surface 112 and the rear end surface 23 can be completely sealed and connected.

[0061] A third magnetic component 113 is provided on the connecting bottom surface 111, and a fourth magnetic component 114 is provided on the connecting side surface 112. When the airspeed device 1 to be measured is in the working form, the top surface 22 is magnetically connected to the connecting bottom surface 111 based on the cooperation between the first magnetic component 222 and the third magnetic component 113, and the rear end surface 23 is magnetically connected to the connecting side surface 112 based on the cooperation between the second magnetic component 231 and the fourth magnetic component 114; in the working form, the measuring end of the pitot tube 3 extends outward through the front end surface 21 to measure the airspeed value.

[0062] In the working state, the second tube section 35 of the pitot tube 3 is a protrusion. During the transportation of the airspeed device 1 to be measured, the pitot tube is likely to hit the packaging box, thereby causing the pitot tube to be blocked.

[0063] In order to prevent the pitot tube 3 from being damaged by collision during transportation, the connection mode of the magnetic quick-release pitot tube device and the airspeed device to be measured 1 can be switched to switch the airspeed device to be measured 1 to a storage mode. In the storage mode, the top surface 22 is magnetically connected to the connecting side surface 112 based on the cooperation between the first magnetic component 222 and the fourth magnetic component 114, and the rear end surface 23 faces the connecting bottom surface 111; in the storage mode, the measuring end of the pitot tube 3 faces downward, and the second tube section 35 of the pitot tube 3 is arranged in the projection area of ​​the airspeed device to be measured 1. The pitot tube 3 will not serve as a protrusion and will not cause collision damage during the transportation of the airspeed device to be measured 1, thereby ensuring the integrity of the pitot tube 3.

[0064] Correspondingly, the third magnetic component 113 includes a fifth magnetic component 1131 and a sixth magnetic component 1132 which are recessed. The fifth magnetic component 1131 and the sixth magnetic component 1132 are symmetrically arranged on both sides of the center line of the connecting bottom surface 111, and there is a third distance between the fifth magnetic component 1131 and the sixth magnetic component 1132.

[0065] There are many ways to implement the fifth magnetic component 1131 and the sixth magnetic component 1132 that are recessed on the connecting bottom surface 111. In an embodiment of the present invention, a third groove and a fourth groove are provided on the connecting bottom surface 111, and the third groove and the fourth groove are symmetrically provided on both sides of the center line of the connecting bottom surface 111. There is the third spacing between the third groove and the fourth groove. The fifth magnetic component 1131 is provided in the third groove, and the sixth magnetic component 1132 is provided in the fourth groove. In this way, the fifth magnetic component 1131 and the sixth magnetic component 1132 are recessed on the connecting bottom surface 111.

[0066] Correspondingly, the fourth magnetic component 114 includes a seventh magnetic component 1141 and an eighth magnetic component 1142 that are protruding. The seventh magnetic component 1141 and the eighth magnetic component 1142 are symmetrically arranged on both sides of the center line of the connecting side 112. There is a fourth distance between the seventh magnetic component 1141 and the eighth magnetic component 1142. The first distance, the second distance, the third distance and the fourth distance are the same in size to facilitate magnetic connection.

[0067] There are many ways to implement the seventh magnetic component 1141 and the eighth magnetic component 1142 that are protruded onto the connecting side surface 112. In an embodiment of the present invention, a third boss 1121 and a fourth boss 1122 are provided on the connecting side surface 112. The third boss 1121 and the fourth boss 1122 are symmetrically provided on both sides of the center line of the connecting side surface 112. There is the fourth distance between the third boss 1121 and the fourth boss 1122. The seventh magnetic component 1141 is provided on the third boss 1121, and the eighth magnetic component 1142 is provided on the fourth boss 1122. In this way, the seventh magnetic component 1141 and the eighth magnetic component 1142 are protruded onto the connecting side surface 112.

[0068] In a specific implementation, when the airspeed device 1 to be measured is in a working state, the magnetic quick-release airspeed tube device is completely sealed and connected to the shell connection part 11: the first magnetic component 2221 corresponds to the position of the fifth magnetic component 1131, and the second magnetic component 2222 corresponds to the position of the sixth magnetic component 1132, so as to realize the magnetic connection between the top surface 22 and the connecting bottom surface 111; the third magnetic component 2311 corresponds to the position of the seventh magnetic component 1141, and the fourth magnetic component 2312 corresponds to the position of the eighth magnetic component 1142, so as to realize the magnetic connection between the rear end face 23 and the connecting side surface 112.

[0069] When the airspeed device 1 to be measured is in the storage state, the first magnetic member 2221 and the seventh magnetic member 1141 are positioned correspondingly to each other, so as to achieve magnetic connection between the top surface 22 and the connecting side surface 112 .

[0070] The embodiment of the present invention provides an airspeed device to be measured 1, wherein the magnetic housing 2 is magnetically connected to the housing connection portion 11 through the magnetic assembly, and the magnetic housing 2 is softly connected to the interior of the airspeed device to be measured, and the connection between the two has the advantages of simple and convenient connection and firm connection, and the magnetic quick-release pitot tube device will be separated from the airspeed device to be measured 1 when encountering external force, thereby avoiding damage to the overall structure of the airspeed device to be measured 1; in the airspeed device to be measured 1, the magnetic quick-release pitot tube device and the airspeed device to be measured 1 have two magnetic installation methods. The apparatus has two states, namely, a working state and a storage state that can be quickly switched: in the working state, the airspeed device 1 to be measured measures the airspeed value through the pressure difference sensor and the pitot tube 3 in the magnetic quick-release pitot tube device; in the storage state, the measuring end of the pitot tube 3 is arranged in the projection area of ​​the airspeed device 1 to be measured, and the pitot tube 3 in the magnetic quick-release pitot tube device faces downward, so that the airspeed device 1 to be measured will not be damaged by collision during transportation, and the problem of the pitot tube hitting the packaging box during transportation, thereby causing the pitot tube to be blocked, is effectively avoided.

[0071] In addition, the above is a detailed introduction to a magnetic quick-release pitot tube device and an airspeed measurement device provided in an embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A magnetic quick-release pitot tube device, characterized in that: The magnetic quick-release pitot tube device comprises a magnetic housing and a pitot tube; The pitot tube is fixed in the magnetic housing, and the measuring end of the pitot tube extends outward through the magnetic housing; a first air inlet is provided on the end surface of the measuring end of the pitot tube, and a second air inlet is provided on the outer peripheral wall of the measuring end of the pitot tube; The magnetic housing is provided with a magnetic component, the magnetic housing is magnetically connected to the airspeed device to be measured through the magnetic component, and the magnetic housing is flexibly connected to the interior of the airspeed device to be measured through a flexible connector, the flexible connector comprising one of a hose, a rope, and a connecting wire; The magnetic housing includes a top surface and a front surface and a rear surface that are oppositely disposed, and the measuring end of the pitot tube extends outward through the front surface; the magnetic assembly includes a first magnetic assembly disposed on the top surface and a second magnetic assembly disposed on the rear surface; The first magnetic component includes a first magnetic member and a second magnetic member that are protruding, the first magnetic member and the second magnetic member are symmetrically arranged on both sides of the center line of the top surface, and a first distance is formed between the first magnetic member and the second magnetic member; The second magnetic assembly includes a third magnetic member and a fourth magnetic member that are recessed, the third magnetic member and the fourth magnetic member being symmetrically arranged on both sides of a center line of the rear end face, and a second distance being provided between the third magnetic member and the fourth magnetic member; The magnetic quick-release pitot tube device has two magnetic installation states: working state and storage state. In the working configuration, the magnetic housing is directly magnetically connected to the airspeed device to be measured by cooperating the first magnetic assembly with the third magnetic assembly on the bottom surface of the housing connection portion of the airspeed device to be measured, and by cooperating the second magnetic assembly with the fourth magnetic assembly on the side surface of the housing connection portion of the airspeed device to be measured, with the measuring end of the pitot tube facing forward. In the storage form, the magnetic housing is directly magnetically connected to the airspeed device to be measured by cooperating with the first magnetic component and the fourth magnetic component on the connecting side of the housing connecting part in the airspeed device to be measured, and the measuring end of the pitot tube faces downward.

2. The magnetic quick-release pitot tube device according to claim 1, characterized in that: The pitot tube includes a first tube section, a tapered tube section, and a second tube section that are coaxially arranged. The outer diameter of the first tube section is larger than the outer diameter of the second tube section. The first tube section is connected to the second tube section through the tapered tube section. The first pipe section is fixed in the magnetic housing, the conical pipe section and the second pipe section extend outward through the front end surface, the second pipe section is the measuring end of the pitot tube, the first air inlet is arranged on the pipe section end surface of the second pipe section, and the second air inlet is arranged on the outer peripheral wall of the second pipe section.

3. The magnetic quick-release pitot tube device according to claim 2, characterized in that: The top surface is provided with fixing holes; The outer wall of the first pipe section is provided with a pitot tube fixing piece, and the pitot tube fixing piece is provided with a pitot tube fixing hole corresponding to the fixing hole position; The pitot tube fixing piece is fixed in the magnetic housing based on the cooperation of a fastener, the pitot tube fixing hole and the fixing hole position.

4. The magnetic quick-release pitot tube device according to claim 2, characterized in that: The front end face is provided with a shell through hole, the aperture of which is adapted to the outer diameter of the first pipe segment, the first pipe segment is embedded in the shell through hole, and the tapered pipe segment and the second pipe segment extend outward through the shell through hole.

5. The magnetic quick-release pitot tube device according to claim 1, characterized in that: The first interval and the second interval are the same in size.

6. An airspeed measurement device, characterized in that: The airspeed device to be measured comprises a pressure differential sensor, a housing connection portion, and the magnetic quick-release pitot tube device according to any one of claims 1 to 5; The magnetic housing is magnetically connected to the housing connection portion via the magnetic assembly; The pressure difference sensor is used to obtain the air pressure difference between the first air inlet and the second air inlet.

7. The airspeed measurement device according to claim 6, characterized in that: The shell connecting portion includes a connecting bottom surface and a connecting side surface, the connecting bottom surface is adapted to the top surface, the connecting side surface is adapted to the rear end surface, a third magnetic attraction component is provided on the connecting bottom surface, and a fourth magnetic attraction component is provided on the connecting side surface; The top surface is magnetically connected to the connection bottom surface based on the cooperation between the first magnetic attraction component and the third magnetic attraction component, and the rear end surface is magnetically connected to the connection side surface based on the cooperation between the second magnetic attraction component and the fourth magnetic attraction component; or The top surface is magnetically connected to the connection side surface based on the cooperation between the first magnetic attraction component and the fourth magnetic attraction component, and the rear end surface faces the connection bottom surface.

8. The airspeed measurement device according to claim 7, characterized in that: The third magnetic assembly includes a fifth magnetic member and a sixth magnetic member that are recessed, the fifth magnetic member and the sixth magnetic member being symmetrically arranged on both sides of a center line of the connecting bottom surface, and a third distance between the fifth magnetic member and the sixth magnetic member; The fourth magnetic assembly includes a seventh magnetic member and an eighth magnetic member provided in a protruding manner, wherein the seventh magnetic member and the eighth magnetic member are symmetrically arranged on both sides of the center line of the connecting side surface, and a fourth distance is formed between the seventh magnetic member and the eighth magnetic member; The first interval, the second interval, the third interval, and the fourth interval are the same in size.

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