Nitrogen charging and discharging device for oil cylinder of nose landing gear of unmanned aerial vehicle

Abstract

The utility model provides a nitrogen inflation and deflation device for an oil cylinder of a nose landing gear of an unmanned aerial vehicle. The nitrogen inflation and deflation device comprises an industrial nitrogen source, a pressure reducing valve connector, a valve connector, a handle, an inflation and deflation valve, a high-pressure air pipe, a deflation switch and an inflation switch. The pressure reducing valve joint is assembled at the bottom of the handle, is in threaded connection with the handle and is connected with an industrial nitrogen source; one end of the high-pressure air pipe is connected with the front part of the handle, and the other end is connected with the valve joint; the valve joint is fixed on the inflation and deflation valve; the inflation and deflation valve can be connected with a nose landing gear oil cylinder of the unmanned aerial vehicle; the deflation switch is assembled on the side face of the handle, and the inflation switch is installed on the front portion of the inflation and deflation handle. According to the nitrogen charging and discharging device for the oil cylinder of the nose landing gear of the unmanned aerial vehicle, nitrogen in the oil cylinder of the nose landing gear of the unmanned aerial vehicle can be charged and discharged by manually operating the nitrogen charging and discharging device anytime and anywhere, and the application convenience of the nitrogen charging and discharging device for the oil cylinder of the nose landing gear of the unmanned aerial vehicle is greatly improved.

Description

A nitrogen charging and discharging device for the front landing gear cylinder of an unmanned aerial vehicle (UAV). Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a nitrogen charging and discharging device for the front landing gear cylinder of an UAV. Background Technology

[0002] To charge and release nitrogen into the hydraulic cylinders of a drone's nose landing gear, a nitrogen supply vehicle is typically used to charge and release nitrogen into the cylinders under high pressure. However, the use of nitrogen supply vehicles has high requirements for the site and environment, making it unsuitable for large-scale use. Summary of the Invention

[0003] To address the aforementioned issues, the purpose of this application is to provide a nitrogen charging and discharging device for the front landing gear cylinder of an unmanned aerial vehicle (UAV).

[0004] In a first aspect, embodiments of this application provide a nitrogen charging and discharging device for a front landing gear cylinder of an unmanned aerial vehicle, comprising: an industrial nitrogen source, a pressure reducing valve connector, a valve connector, a handle, a charging and discharging valve, a high-pressure gas pipe, a discharging switch, and a charging switch;

[0005] The pressure reducing valve connector is assembled to the bottom of the handle and threaded into the handle. The pressure reducing valve connector is connected to an industrial nitrogen source.

[0006] One end of the high-pressure air hose is connected to the front of the handle, and the other end of the high-pressure air hose is connected to the valve connector.

[0007] The valve connector is fixed to the inflation / deflation valve; the inflation / deflation valve can be connected to the hydraulic cylinder of the drone's front landing gear.

[0008] The deflation switch is mounted on the side of the handle, and the inflation switch is installed at the front of the inflation / deflation handle.

[0009] In the solution provided by the first aspect of this application, in the nitrogen charging and discharging device for the front landing gear cylinder of a UAV, a pressure reducing valve connector is assembled to the bottom of the handle, the pressure reducing valve connector is connected to an industrial nitrogen source, a high-pressure gas pipe is connected to the handle and the valve connector respectively, and the charging and discharging valves are connected to the valve connector and the front landing gear cylinder of the UAV respectively; the venting switch and the charging switch are respectively assembled on the handle, thereby forming a nitrogen charging and discharging device for manually operating the front landing gear cylinder of the UAV. Compared with the use of gas source vehicles in related technologies, which have high requirements for site and environment, the nitrogen in the front landing gear cylinder of the UAV can be charged and discharged anytime and anywhere by manually operating the nitrogen charging and discharging device, which greatly improves the application convenience of the nitrogen charging and discharging device for the front landing gear cylinder of the UAV. Moreover, the charging and discharging operations of the nitrogen in the front landing gear cylinder of the UAV can be completed by using the venting switch and the charging switch set in the nitrogen charging and discharging device, which has the characteristics of simple operation.

[0010] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 shows a schematic diagram of a nitrogen charging and discharging device for the front landing gear cylinder of an unmanned aerial vehicle provided in an embodiment of this application;

[0013] Figure 2 shows a schematic diagram of the inflation / deflation valve provided in an embodiment of this application.

[0014] Icons: 1. Pressure gauge connector; 2. Pressure reducing valve connector; 3. Valve connector; 4. Handle; 5. Inflation / release valve; 6. Remote pressure gauge; 7. High-pressure gas hose; 8. Proximal pressure gauge; 9. Release switch; 10. Inflation switch; 51. Manual rotary valve; 52. Sealing component. Detailed Implementation

[0015] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0017] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0018] To charge and release nitrogen into the hydraulic cylinders of a drone's nose landing gear, a nitrogen supply vehicle is typically used to charge and release nitrogen into the cylinders under high pressure. However, the use of nitrogen supply vehicles has high requirements for the site and environment, making it unsuitable for large-scale use.

[0019] Based on this, the following embodiments of this application propose a nitrogen charging and discharging device for the nose landing gear cylinder of a UAV. In the nitrogen charging and discharging device for the nose landing gear cylinder of a UAV, a pressure reducing valve connector is assembled to the bottom of the handle, the pressure reducing valve connector is connected to an industrial nitrogen source, a high-pressure gas pipe is connected to the handle and the valve connector respectively, and the charging and discharging valves are connected to the valve connector and the nose landing gear cylinder of the UAV respectively. The venting switch and the charging switch are respectively assembled on the handle, thereby forming a nitrogen charging and discharging device for manually operating the nose landing gear cylinder of the UAV. The nitrogen in the nose landing gear cylinder of the UAV can be charged and discharged anytime and anywhere by manually operating the nitrogen charging and discharging device, which greatly improves the application convenience of the nitrogen charging and discharging device for the nose landing gear cylinder of the UAV.

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] Example

[0022] Referring to Figure 1, which shows a schematic diagram of a nitrogen charging and discharging device for a drone's front landing gear cylinder, this embodiment proposes a nitrogen charging and discharging device for a drone's front landing gear cylinder, including: an industrial nitrogen source, a pressure reducing valve connector 2, a valve connector 3, a handle 4, a charging and discharging valve 5, a high-pressure gas pipe 7, a venting switch 9, and a charging switch 10.

[0023] The pressure reducing valve connector 2 is assembled to the bottom of the handle 4 and threaded to the handle 4. The pressure reducing valve connector 2 is connected to an industrial nitrogen source.

[0024] One end of the high-pressure air hose 7 is connected to the front of the handle 4, and the other end of the high-pressure air hose 7 is connected to the valve connector 3.

[0025] Valve connector 3 is fixed to inflation / deflation valve 5; inflation / deflation valve 5 can be connected to the front landing gear cylinder of the UAV.

[0026] The deflation switch 9 is mounted on the side of the handle 4, and the inflation switch 10 is installed at the front of the inflation / deflation handle 4.

[0027] In one embodiment, pressure reducing valve connector 2 is connected to a pressure reducing valve of an industrial nitrogen source.

[0028] Referring to the structural schematic diagram of the inflation / deflation valve shown in Figure 2, the top of the inflation / deflation valve 5 is provided with a manual rotary valve 51, and the side of the inflation / deflation valve 5 is provided with a first connection hole; the bottom of the inflation / deflation valve 5 is threadedly connected to the front landing gear cylinder of the UAV.

[0029] Valve connector 3 is fixed to the first connection hole of the inflation / deflation valve 5.

[0030] As shown in Figure 2, the nitrogen charging and discharging device for the front landing gear cylinder of the UAV proposed in this embodiment also includes: a sealing component 52.

[0031] The side of the inflation / deflation valve 5 is also provided with an air vent.

[0032] When venting is not required, use the sealing component 52 to block the vent hole.

[0033] When venting is needed, simply remove the plug from the vent hole to release the nitrogen gas from the cylinder.

[0034] In order to accurately control the gas pressure during nitrogen charging and discharging, as shown in Figure 1, the nitrogen charging and discharging device for the front landing gear cylinder of the UAV proposed in this embodiment also includes: a proximal pressure gauge 8, and a second connection hole is provided on the side of the charging and discharging valve 5. The proximal pressure gauge 8 is fixed in the second connection hole of the charging and discharging valve 5.

[0035] The nitrogen charging and discharging device for the front landing gear cylinder of a UAV proposed in this embodiment is characterized by further including: a pressure gauge connector 1 and a remote pressure gauge 6.

[0036] One end of the pressure gauge connector 1 is fitted to the top of the handle 4 and threaded to the handle 4, while the other end of the pressure gauge connector 1 is connected to the remote pressure gauge 6.

[0037] The nitrogen charging and discharging device for the front landing gear cylinder of a UAV proposed in this embodiment has charging, discharging and pressure monitoring functions. One end of the nitrogen charging and discharging device is connected to the front landing gear cylinder of the UAV to be charged with nitrogen, and the other end is connected to the pressure reducing valve of the industrial nitrogen source. After opening the charging and discharging valve 5, it is only necessary to open the charging switch 10 to charge the cylinder of the front landing gear system with nitrogen. When the gas pressure displayed by the remote pressure gauge 6 exceeds the predetermined value, the charging switch 10 is closed. At this time, the discharging switch 9 can be pressed and the near pressure gauge 8 can be observed to accurately control the nitrogen pressure in the cylinder.

[0038] In summary, in the nitrogen charging and discharging device for the UAV front landing gear cylinder, the pressure reducing valve connector is assembled to the bottom of the handle, the pressure reducing valve connector is connected to an industrial nitrogen source, the high-pressure gas pipe is connected to the handle and the valve connector respectively, and the charging and discharging valves are connected to the valve connector and the UAV front landing gear cylinder respectively; the venting switch and the charging switch are respectively assembled on the handle, thus forming a nitrogen charging and discharging device for manually operating the UAV front landing gear cylinder. Compared with the use of gas source vehicles in related technologies, which have high requirements for site and environment, the nitrogen in the UAV front landing gear cylinder can be charged and discharged anytime and anywhere by manually operating this nitrogen charging and discharging device, which greatly improves the application convenience of the nitrogen charging and discharging device for the UAV front landing gear cylinder. Moreover, the charging and discharging operations of the nitrogen in the UAV front landing gear cylinder can be completed by using the venting switch and the charging switch set in the nitrogen charging and discharging device, which has the characteristics of simple operation.

[0039] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A nitrogen charging and discharging device for the hydraulic cylinder of the nose landing gear of an unmanned aerial vehicle, characterized in that, include: Industrial nitrogen source, pressure reducing valve connector, valve connector, handle, charging / discharging valve, high-pressure gas hose, venting switch, and charging switch; the pressure reducing valve connector is assembled to the bottom of the handle and threaded onto the handle, and the pressure reducing valve connector is connected to the industrial nitrogen source; one end of the high-pressure gas hose is connected to the front of the handle, and the other end of the high-pressure gas hose is connected to the valve connector; the valve connector is fixed to the charging / discharging valve; the charging / discharging valve can be connected to the front landing gear cylinder of the UAV; the venting switch is assembled to the side of the handle, and the charging switch is installed at the front of the charging / discharging handle.

2. The nitrogen charging and discharging device for the front landing gear cylinder of an unmanned aerial vehicle according to claim 1, characterized in that, The top of the inflation / deflation valve is equipped with a manual rotary valve, and the side of the inflation / deflation valve has a first connection hole; the bottom of the inflation / deflation valve is threadedly connected to the front landing gear cylinder of the UAV; the valve connector is fixed on the first connection hole of the inflation / deflation valve.

3. The nitrogen charging and discharging device for the nose landing gear cylinder of an unmanned aerial vehicle according to claim 2, characterized in that, Also includes: A sealing element is provided; the side of the inflation / deflation valve is also provided with a vent hole; when venting is not required, the vent hole is blocked by the sealing element.

4. The nitrogen charging and discharging device for the nose landing gear cylinder of an unmanned aerial vehicle according to claim 2, characterized in that, Also includes: A pressure gauge is located near the pressure end; a second connection hole is also provided on the side of the inflation / deflation valve; the pressure gauge near the pressure end is fixed in the second connection hole of the inflation / deflation valve.

5. The nitrogen charging and discharging device for the front landing gear cylinder of an unmanned aerial vehicle according to claim 1, characterized in that, Also includes: Pressure gauge connector and remote pressure gauge; one end of the pressure gauge connector is fitted to the top of the handle and threaded to the handle, and the other end of the pressure gauge connector is connected to the remote pressure gauge.

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