CN220105080U - Airspeed tube for unmanned aerial vehicle - Google Patents

Abstract

The utility model provides a airspeed tube for an unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicles for industry, and comprises: a rotating module; the connecting pipe is rotationally connected to one side end of the rotating module; the fan blades are rotationally connected to the circumferential surface of the connecting pipe; four drain pipes fixedly connected to the circumferential surfaces of the connection pipes; the second drainage groove is formed in the circumferential surface of the connecting pipe; when unmanned aerial vehicle flies, airspeed tube is facing the air current of head-on inflow, and the air current drives driven turbine and rotates, and the rainwater can be attached to on the driven turbine casing on the one hand, and on the other hand can get into total pressure cavity through outside total pressure hole, and the vortex makes the rainwater of these two parts produce radial centrifugal force when high-speed rotation, and outside attached water directly throws away, and inside soaks and discharges through the secondary wash port for equipment adaptation rainfall weather is great, prevents airspeed tube jam, has easy realization, reliable, strong in adaptability's efficiency.

Description

Airspeed tube for unmanned aerial vehicle

Technical Field

The utility model belongs to the technical field of unmanned aerial vehicles for industry, and particularly relates to a airspeed tube for an unmanned aerial vehicle.

Background

Airspeed tubes, also known as pitot tubes, are typically mounted to the nose or wing nose of an aircraft to reflect the relative velocity of the aircraft to the ambient air. When unmanned aerial vehicle flight operation, can fly in low altitude cloud rain environment generally, the condition that the rainwater often takes place when conventional airspeed tube runs into the rainwater and blocks up the total pressure pipe of empty pipe, leads to the measurement error of empty pipe pressure measurement module.

The prior art CN202110370871.2 provides a solution for absorbing rain water entering into a pitot tube using an absorbent material; CN202210070235.2 and CN202210078085.X provide a solution for forming water leakage hole on airspeed tube and movable cover on airspeed tube respectively, so that airspeed tube has a certain water-proof function, and the unmanned aerial vehicle can realize water-air dual-purpose. The schemes have the characteristics of simple structure and easy realization, but the schemes belong to methods for passively removing or isolating water on the airspeed tube, and when the water quantity attached to the airspeed tube is large, the airspeed tube is still likely to be blocked.

The utility model provides a rain-proof method for a airspeed tube adopting a turbine outer rotor, which is characterized in that rainwater is thrown away through rotation of the turbine outer rotor, so that active rainwater isolation is realized, weather with larger rainfall is adapted, the airspeed tube is prevented from being blocked, and the method has the advantages of easiness in realization, reliability and strong adaptability.

Disclosure of Invention

The utility model aims to provide an airspeed tube for an unmanned aerial vehicle, and aims to solve the problem that an air traffic control tube pressure measuring module is wrong in measurement because the air traffic control tube is always flown in a low-altitude cloud and rain environment when the unmanned aerial vehicle in the prior art flies, and the air traffic control tube total pressure tube is always blocked by rainwater when the conventional airspeed tube encounters rainwater.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a pitot tube for an unmanned aerial vehicle, comprising:

a rotating module;

the connecting pipe is rotationally connected to one side end of the rotating module;

a fan blade rotatably coupled to a circumferential surface of the connection pipe;

four drain pipes fixedly connected to the circumferential surfaces of the connection pipes;

the second drainage groove is formed in the circumferential surface of the connecting pipe; and

and the two first drainage grooves are formed in the circumferential surface of the rotating module.

As a preferable scheme of the utility model, one end of the connecting pipe is fixedly connected with a cone-shaped head, and the cone-shaped head is communicated with four drain pipes.

As a preferred embodiment of the present utility model, the second drain grooves communicate with the two first drain grooves.

As a preferable scheme of the utility model, the circumferential surface of the rotating module is fixedly connected with a connecting rib plate, and the lower end of the connecting rib plate is fixedly connected with a fixing seat.

As a preferable scheme of the utility model, four positioning grooves are formed in the upper end of the fixing seat.

As a preferable scheme of the utility model, the surface of the fan blade is provided with a waterproof coating.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the scheme, the head-on airflow enters the total pressure cavity through the external total pressure hole, the total pressure cavity air pressure is measured by the stator total pressure hole, the head-on airflow total pressure is obtained after a compensation algorithm, a plurality of secondary drainage holes are formed in the driven turbine shell, and if rainwater enters the cavity from the external total pressure hole, the effect of draining the rainfall water from the drainage holes through centrifugal force generated by the turbine shell is achieved.

2. This scheme through the constant head tank that sets up in fixing base one side, can carry out fixed mounting's effect with equipment and unmanned aerial vehicle, through the logical groove that sets up in first one side of cone type, can collect, makes things convenient for the effect of drain pipe drainage water.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a first schematic plan view of the present utility model;

FIG. 3 is a second schematic plan view of the present utility model;

FIG. 4 is a third schematic plan view of the present utility model;

FIG. 5 is a fourth schematic plan view of the present utility model.

In the figure: 1. a fixing seat; 2. connecting rib plates; 3. a positioning groove; 4. a rotating module; 5. a connecting pipe; 6. a fan blade; 7. a vertebral head; 8. a drain pipe; 9. a first drain tank; 10. and a second drain tank.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-5, the present utility model provides the following technical solutions:

a pitot tube for an unmanned aerial vehicle, comprising:

a rotation module 4;

the connecting pipe 5 is rotatably connected to one side end of the rotating module 4;

a fan blade 6 rotatably coupled to a circumferential surface of the connection pipe 5;

four drain pipes 8 fixedly connected to the circumferential surfaces of the connection pipes 5;

a second drain groove 10 opened at the circumferential surface of the connection pipe 5; and

two first drainage grooves 9 are provided on the circumferential surface of the rotation module 4.

In the specific embodiment of the utility model, the connection rib plate 2 arranged below the rotating module 4 plays a role of being fixedly connected with the fixed seat 1, the positioning groove 3 arranged below the fixed seat 1 plays a role of being capable of fixedly installing equipment and an unmanned aerial vehicle, the connecting pipe 5 arranged at one side of the rotating module 4 plays a role of being capable of being connected with fan blades 6, the cone-shaped head 7 arranged at one side of the connecting pipe 5 plays a role of being capable of collecting water, the drain pipe 8 arranged on the surface of the connecting pipe 5 plays a role of being capable of draining water, the first drain groove 9 arranged on the surface of the rotating module 4 is communicated with the second drain groove 10, the airspeed tube faces to the airflow of the incoming flow when the unmanned aerial vehicle flies, the airflow drives the driven turbine to rotate, the rainwater can be attached to the shell of the driven turbine, on the other hand, the external total pressure hole possibly enters the total pressure cavity, the vortex flow can cause radial centrifugal force to be generated by the two parts when rotating at high speed, the external attached rainwater is directly thrown away, and the internal water is drained through the secondary drain hole, which needs to be described: the specific type of the rotation module 4 is selected by a person skilled in the art, and how to use the rotation module 4 belongs to a technology known to a person skilled in the art, and this scheme is not repeated.

Referring to fig. 1 specifically, one end of the connecting pipe 5 is fixedly connected with a cone-shaped head 7, and the cone-shaped head 7 is communicated with four drain pipes 8.

In this embodiment: through the cone-shaped head 7 arranged at one side of the connecting pipe 5, the water collecting function is realized, so that the water can be conveniently discharged.

Referring specifically to fig. 1, the second drainage channel 10 communicates with two first drainage channels 9.

In this embodiment: the second drain tank 10 plays a role of draining the collected water by communicating with the first drain tank 9.

Referring to fig. 1 specifically, a connecting rib plate 2 is fixedly connected to a circumferential surface of a rotation module 4, and a fixing seat 1 is fixedly connected to a lower end of the connecting rib plate 2.

In this embodiment: through setting up the connection floor 2 in rotation module 4 one side, but play the effect of fixed connection fixing base 1, through setting up fixing base 1 under connection floor 2, but play the effect of carrying out fixed mounting with equipment and unmanned aerial vehicle.

Referring to fig. 2, four positioning slots 3 are provided at the upper end of the fixing base 1.

In this embodiment: through setting up the constant head tank 3 on fixing base 1, played the effect that accessible bolt carries out fixed mounting with equipment on unmanned aerial vehicle.

Referring to fig. 1 specifically, a waterproof coating is disposed on the surface of the fan blade 6.

In this embodiment: through the waterproof coating on the surface of the fan blade 6, the effect of reducing the corrosiveness of rainwater to the fan blade 6 is achieved.

The working principle and the using flow of the utility model are as follows: when unmanned aerial vehicle flies, airspeed tube is facing the air current of head-on inflow, and the air current drives driven turbine and rotates, and the rainwater can be attached to on the driven turbine casing on the one hand, and on the other hand can get into total pressure cavity through outside total pressure hole, and the vortex makes the rainwater of these two parts produce radial centrifugal force when high-speed rotation, and outside attached water directly throws away, and inside soaks and discharges through the secondary wash port for equipment adaptation rainfall weather is great, prevents airspeed tube jam, has easy realization, reliable, strong in adaptability's efficiency.

Finally, it should be noted that: the above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. Airspeed tube for unmanned aerial vehicle, characterized by comprising:

a rotation module (4);

the connecting pipe (5) is rotationally connected to one side end of the rotating module (4);

a fan blade (6) rotatably connected to the circumferential surface of the connection pipe (5);

four drain pipes (8) fixedly connected to the circumferential surface of the connection pipe (5);

a second drain groove (10) which is provided on the circumferential surface of the connection pipe (5); and

and the two first drainage grooves (9) are formed in the circumferential surface of the rotating module (4).

2. A pitot tube for an unmanned aerial vehicle according to claim 1, wherein: one end of the connecting pipe (5) is fixedly connected with a cone-shaped head (7), and the cone-shaped head (7) is communicated with four drain pipes (8).

3. A pitot tube for an unmanned aerial vehicle according to claim 2, wherein: the second drainage grooves (10) are communicated with the two first drainage grooves (9).

4. A pitot tube for an unmanned aerial vehicle according to claim 3, wherein: the rotary module is characterized in that the circumferential surface of the rotary module (4) is fixedly connected with a connecting rib plate (2), and the lower end of the connecting rib plate (2) is fixedly connected with a fixing seat (1).

5. The pitot tube for an unmanned aerial vehicle of claim 4, wherein: four positioning grooves (3) are formed in the upper end of the fixing seat (1).

6. The pitot tube for an unmanned aerial vehicle of claim 5, wherein: the surface of the fan blade (6) is provided with a waterproof coating.