Quick-release airspeed tube

Abstract

The utility model discloses a quick release type airspeed tube which comprises a first split part, a second split part, a third split part and a fourth split part, the first split part and the second split part are detachably connected through threads, and the third split part and the fourth split part are detachably connected through threads. The second split part and the third split part are connected in an interference fit mode. According to the utility model, the split part I and the split part II are in threaded connection, the split part III and the split part IV are in threaded connection, and then the split part II and the split part III are in interference fit for connection, so that the airspeed tube is convenient to quickly disassemble and assemble, and the airspeed tube of the unmanned aerial vehicle is prevented from being bent, broken and other damage phenomena; and normal take-off and landing of the unmanned aerial vehicle are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pitot tubes, in particular to a quick-detachable pitot tube. Background Art

[0002] The inspection of the pitot tube is a must-do task before a drone takes off. Many air crashes in history are directly related to the abnormal status of the pitot tube. The inspection of the pitot tube before a drone takes off includes the pitot tube zeroing test, static pressure test and dynamic pressure test.

[0003] For example, a UAV pitot tube system and operation method with application number CN202211220536.5, the UAV pitot tube system includes a pitot tube and a pitot cap, the pitot cap is detachably mounted on the pitot tube, the pitot tube includes a through hole, the pitot cap includes a shell and an inner column extending along the axial direction of the shell, when the pitot tube is connected to the pitot cap, the shell is located on the outside of the pitot tube, and the inner column extends into the through hole, the UAV operation method includes the pitot tube and the pitot cap and a corresponding position detection device. By providing a pitot cap with an inner column, in a non-flight state, the pitot cap is installed to the pitot tube, in addition to achieving physical dust prevention for the pitot tube, the inner column of the pitot cap can also extend into the through hole of the pitot tube, realizing the anti-blocking and dredging functions of the through hole of the pitot tube, and at the same time, by detecting whether the pitot cap reaches the predetermined position, it is ensured that the UAV removes the pitot cap during the flight mission, and the pitot cap is installed in the non-flight mission state.

[0004] At present, the pitot tubes of drones on the market are generally embedded in the outer surfaces of the aircraft head, wing front, etc., and most of the existing pitot tubes are integrated structures without the function of disassembly and assembly. During the transfer and transportation process, it is easy for external forces to operate on the pitot tube, causing it to bend, break, etc., thus causing the failure of the drone's takeoff mission and causing loss of manpower and material resources. Therefore, it is urgent to design a quick-detachable pitot tube to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a quick-detachable pitot tube to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A quick-release pitot tube comprises a split part one, a split part two, a split part three and a split part four, wherein the split part one and the split part two are detachably connected by threads, the split part three and the split part four are detachably connected by threads, and the split part two and the split part three are connected by interference fit.

[0008] Preferably, the split component 1 comprises a long tube, a front conduit is fixedly provided at one end of the long tube, and an external thread is provided on the outer wall of the front conduit.

[0009] Preferably, the second split component comprises an internally threaded sleeve which is sleeved on the front conduit and matches with the external thread, and one end of the internally threaded sleeve is provided with an integrally formed boss 1.

[0010] Preferably, the split component three comprises a threaded sleeve, and a hollow tube is fixedly provided at one end of the threaded sleeve, and small holes distributed in an annular shape and at equal distances are provided on the outer wall of the hollow tube.

[0011] Preferably, the split component four includes a threaded column threadedly inserted into the threaded sleeve, and an end cover is fixedly provided on the outer wall on one side of the threaded column, a pagoda head two is fixedly provided on the outer wall on one side of the end cover, a pagoda head one is provided on the outer wall on one side of the threaded column, and the pagoda head one and the pagoda head two are connected, and a boss two that passes through the threaded column is fixedly provided on the outer wall on one side of the end cover.

[0012] Preferably, a hose is fixedly connected between the pagoda head 1 and the boss 1, and the small hole is connected to the boss 2.

[0013] In the above technical solution, the utility model provides a quick-detachable pitot tube, which has the following beneficial effects:

[0014] (1) Split part 1 and split part 2 are connected by threads, split part 3 and split part 4 are connected by threads, and split part 2 and split part 3 are connected by interference fit, so that the pitot tube can be quickly disassembled and installed, and the pitot tube of the UAV can be prevented from being damaged by bending, breaking, etc., thereby ensuring the normal take-off and landing of the UAV.

[0015] (2) When the pitot tube is used for dynamic pressure detection, the boss 1 on the split component 2 is connected with the pagoda head 1 and the pagoda head 2 to transmit the dynamic pressure, thereby realizing the detection of the dynamic pressure. When the pitot tube is used for static pressure detection, the connection between the small hole and the boss 2 is utilized, and a plurality of small hole structures are adopted to avoid water droplets blocking the small holes and causing inaccurate static pressure measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 The present invention provides a structural stereogram of a quick-detachable pitot tube embodiment of the present invention.

[0018] Figure 2The present invention is a schematic diagram of an explosion structure provided in an embodiment of a quick-detachable pitot tube of the present invention.

[0019] Figure 3 The present invention is a schematic diagram of the structure of a split part provided in a quick-detachable pitot tube embodiment of the present invention.

[0020] 1 Split part one, 11 long tube, 12 front guide tube, 13 external thread, 2 Split part two, 21 internal threaded sleeve, 22 boss one, 3 Split part three, 31 threaded sleeve, 32 hollow tube, 33 small hole, 4 Split part four, 41 threaded column, 42 end cover, 43 pagoda head one, 44 boss two, 45 pagoda head two. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-3 As shown, a quick-detachable airspeed tube provided by an embodiment of the utility model includes a split part 1, a split part 2, a split part 3, and a split part 4, wherein the split part 1 and the split part 2 are detachably connected by threads, the split part 3 and the split part 4 are detachably connected by threads, and the split part 2 and the split part 3 are connected by interference fit.

[0023] Specifically, in this embodiment, it includes split part 1, split part 2, split part 3 3 and split part 4, split part 1 1 and split part 2 2 are detachably connected by thread, split part 3 3 and split part 4 4 are detachably connected by thread, and split part 2 2 and split part 3 3 are connected by interference fit; by threaded connection between split part 1 1 and split part 2 2, threaded connection between split part 3 3 and split part 4 4, and then connection by interference fit between split part 2 2 and split part 3 3, quick disassembly and installation of the pitot tube is facilitated, bending, breaking and other damages of the UAV's pitot tube are avoided, and normal take-off and landing of the UAV are ensured.

[0024] In one embodiment provided by the utility model, the split component 1 includes a long tube 11, a front conduit 12 is fixedly provided at one end of the long tube 11, and an external thread 13 is provided on the outer wall of the front conduit 12.

[0025] In another embodiment provided by the utility model, the split component 2 includes an internal threaded sleeve 21 which is sleeved on the front conduit 12 and matched with the external thread 13 , and an integrally formed boss 22 is provided at one end of the internal threaded sleeve 21 .

[0026] In another embodiment of the present invention, the split component 3 includes a threaded sleeve 31, and a hollow tube 32 is fixedly provided at one end of the threaded sleeve 31, and small holes 33 distributed in an annular shape at equal distances are provided on the outer wall of the hollow tube 32.

[0027] As another embodiment provided by the utility model, the split component four 4 includes a threaded column 41 threadedly inserted into the threaded sleeve 31, and an end cover 42 is fixedly provided on the outer wall on one side of the threaded column 41, a pagoda head two 45 is fixedly provided on the outer wall on one side of the end cover 42, a pagoda head one 43 is provided on the outer wall on one side of the threaded column 41, and the pagoda head one 43 and the pagoda head two 45 are connected, and a boss two 44 that passes through the threaded column 41 is fixedly provided on the outer wall on one side of the end cover 42.

[0028] A hose is fixedly connected between the pagoda head 1 43 and the boss 1 22, and the small hole 33 is connected with the boss 2 44. When the pitot tube is installed on the drone, the front half of the overall structure composed of the split part 1, the split part 2 and the split part 3 will be exposed outside the aircraft, and the remaining part is inside the cabin (i.e., part of the split part 3 and all of the split part 4).

[0029] When the utility model utilizes the pitot tube to detect dynamic pressure, the boss 1 22 on the split member 2 is connected with the pagoda head 1 43 and the pagoda head 2 45 to transmit dynamic pressure, thereby realizing the detection of dynamic pressure. When the pitot tube is utilized to detect static pressure, the connection between the small hole 33 and the boss 2 44 is utilized, and a structure of several small holes 33 is adopted to avoid water droplets blocking the small holes 33, thereby preventing inaccurate static pressure measurement.

[0030] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quick-release pitot tube, It is characterized in that The invention comprises a split part 1 (1), a split part 2 (2), a split part 3 (3) and a split part 4 (4), wherein the split part 1 (1) and the split part 2 (2) are detachably connected by threads, the split part 3 (3) and the split part 4 (4) are detachably connected by threads, and the split part 2 (2) and the split part 3 (3) are connected by interference fit.

2. A quick-release pitot tube according to claim 1, It is characterized in that The split component 1 (1) comprises a long tube (11), one end of which is fixedly provided with a front conduit (12), and an external thread (13) is provided on the outer wall of the front conduit (12).

3. A quick-release pitot tube according to claim 2, It is characterized in that The second split component (2) comprises an internal threaded sleeve (21) which is sleeved on the front conduit (12) and matched with the external thread (13), and one end of the internal threaded sleeve (21) is provided with an integrally formed boss (22).

4. A quick-release pitot tube according to claim 3, It is characterized in that The third split component (3) comprises a threaded sleeve (31), and a hollow tube (32) is fixedly arranged at one end of the threaded sleeve (31), and small holes (33) distributed in an annular shape and at equal distances are arranged on the outer wall of the hollow tube (32).

5. A quick-release pitot tube according to claim 4, It is characterized in that The split part four (4) comprises a threaded column (41) threadedly inserted into the threaded sleeve (31), and an end cover (42) is fixedly arranged on the outer wall of one side of the threaded column (41), and a pagoda head two (45) is fixedly arranged on the outer wall of one side of the end cover (42), and a pagoda head one (43) is arranged on the outer wall of one side of the threaded column (41), and the pagoda head one (43) and the pagoda head two (45) are connected, and a boss two (44) penetrating the threaded column (41) is fixedly arranged on the outer wall of one side of the end cover (42).

6. A quick-release pitot tube according to claim 5, It is characterized in that A hose is fixedly connected between the pagoda head 1 (43) and the boss 1 (22), and the small hole (33) and the boss 2 (44) are connected.

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