阅读说明：本技术 无人机的液位测量装置、药箱装置、加液装置及无人飞行器 (Unmanned aerial vehicle's liquid level measurement device, medical kit device, liquid feeding device and unmanned vehicles ) 是由 周万仁 周乐 于 2018-09-14 设计创作，主要内容包括：一种无人机的液位测量装置(20)、药箱装置、加液装置及无人飞行器(60,60’)。液位测量装置(20)通过在水箱(10)内设置浮标组件(21),在水箱(10)外设置非接触式测量组件(22),浮标组件(21)包括可随液位变化而移动的浮标件(211),非接触式测量组件(22)与浮标组件(21)间隔设置,可感应浮标件(211)的位置并据此确定水箱(10)内的液位。能够实现水箱(10)内液位的精确测量,简化液位测量装置(20)的结构,便于水箱(10)的快速拆卸。(An unmanned aerial vehicle's liquid level measurement device (20), medical kit device, liquid feeding device and unmanned vehicles (60, 60'). The liquid level measuring device (20) is characterized in that a buoy assembly (21) is arranged in the water tank (10), a non-contact measuring assembly (22) is arranged outside the water tank (10), the buoy assembly (21) comprises a buoy member (211) capable of moving along with liquid level change, the non-contact measuring assembly (22) and the buoy assembly (21) are arranged at intervals, and the position of the buoy member (211) can be sensed to determine the liquid level in the water tank (10) according to the position. The accurate measurement of the liquid level in the water tank (10) can be realized, the structure of the liquid level measuring device (20) is simplified, and the water tank (10) can be rapidly disassembled conveniently.)

1. The utility model provides an unmanned aerial vehicle's liquid level measurement device, its characterized in that includes buoy assembly and non-contact measurement subassembly, buoy assembly is used for setting up in the water tank, buoy assembly includes can follow the buoy spare that the liquid level of liquid changes and removes in the water tank, non-contact measurement subassembly can locate outside the water tank, and with buoy assembly interval sets up, non-contact measurement subassembly is used for the response the position of buoy spare, and according to the position determination of buoy spare the liquid level of liquid in the water tank.

2. The fluid level measuring device of claim 1, wherein the sensing means of the non-contact measuring assembly comprises any one of the following: magnetic field induction, electric field induction, optical induction.

3. The fluid level measuring device of claim 1, wherein the non-contact measuring assembly comprises at least one magnetic sensing unit.

4. The fluid level measuring device of claim 3, wherein the non-contact measuring assembly comprises at least two of the magnetic sensing units, and different ones of the magnetic sensing units are located at different elevations of the tank.

5. The fluid level measuring device of claim 4, wherein at least two of the magnetic sensing units are spaced apart in a vertical direction.

6. A liquid level measuring device according to any of claims 3-5, wherein the magnetic sensing unit comprises any of: hall sensor, magnetic switch.

7. A liquid level measuring device as claimed in any one of claims 3 to 5, wherein the magnetic sensing unit is mounted on an outer wall of the tank.

8. A liquid level measuring device according to any of claims 3-5, characterized in that the float member comprises a magnetic part having magnetic properties.

9. The fluid level measuring device of claim 8, wherein the entire float member is magnetic.

10. A liquid level measuring device as claimed in any one of claims 1 to 5, characterized in that the number of float elements is at least one.

11. The fluid level measuring device of claim 10, wherein the number of said float members is at least two and different ones of said float members are located at different elevations within said tank.

12. The fluid level measuring device of claim 11, wherein at least two of the float members are spaced apart in a vertical direction.

13. The fluid level measuring device of any one of claims 1-5, wherein the float assembly further comprises a bracket, and the float member is rotatably coupled to the bracket via a horizontal pivot shaft.

14. The fluid level measuring device of claim 13, wherein the bracket is removably attached within the tank.

15. The fluid level measuring device of claim 14, wherein the bracket is connected to the tank inner wall by a threaded fastener; or the bracket is clamped with the inner wall of the water tank.

16. The fluid level measuring device of claim 13, wherein the horizontal pivot shaft is connected to a middle portion of the float member.

17. The fluid level measuring device of claim 16, wherein the first end of the float member is configured to generate buoyancy when contacting the fluid in the tank, the second end of the float member is magnetic, and the distance between the second end of the float member and the inner wall of the tank is less than the distance between the first end of the float member and the inner wall of the tank.

18. The fluid level measuring device of claim 17, wherein the second end of the float member is offset from the magnetic sensing unit when the first end of the float member is not buoyant; when the first end of the buoy member generates buoyancy, the position of the second end of the buoy member corresponds to the position of the magnetic induction unit.

19. The fluid level measuring device of claim 17, wherein when the first end of the float member is not buoyant, the position of the second end of the float member corresponds to the position of the magnetic sensing unit; when the first end of the buoy member generates buoyancy, the second end of the buoy member and the magnetic induction unit are staggered.

20. A liquid level measuring device according to any one of claims 17 to 19 wherein the first end of the float member has a closed hollow cavity, the density of the medium within the hollow cavity being less than the density of the liquid in the tank.

21. The fluid level measuring device of claim 20, wherein the hollow cavity is a vacuum cavity or is filled with air.

22. A liquid level measuring device as claimed in any one of claims 17 to 19, wherein the distance from the first end of the float member to the horizontal pivot axis is greater than the distance from the second end of the float member to the horizontal pivot axis.

23. The fluid level measuring device of claim 22, wherein the distance from the first end of the float member to the horizontal pivot axis is 2-4 times the distance from the second end of the float member to the horizontal pivot axis.

24. A medicine chest arrangement of an unmanned aerial vehicle, comprising a water tank, a fixed structure and a liquid level measuring device according to any one of claims 1 to 23, wherein the fixed structure is located outside the water tank, and a non-contact measuring component in the liquid level measuring device is arranged on the fixed structure.

25. The kit of claim 24, wherein the water tank has an opening through which a float assembly in the level measurement device is mounted within the water tank.

26. A kit arrangement according to claim 24 or 25, wherein said water tank is detachably arranged on said fixed structure.

27. A kit arrangement according to claim 26, characterised in that the water tank rests on the fixed structure.

28. An unmanned aerial vehicle's medical kit device, its characterized in that includes:

the water tank is used for containing pesticides; and

a float assembly disposed within the tank, the float assembly including a float member movable in response to changes in a level of liquid within the tank;

the buoy assembly can be matched with a non-contact measuring assembly positioned outside the water tank, the buoy assembly and the non-contact measuring assembly are arranged at intervals, and the non-contact measuring assembly is used for sensing the position of the buoy member and according to the position of the buoy member Is/are as followsThe position determines the level of liquid in the tank.

29. The kit of claim 28, wherein the water tank has an opening through which the float assembly in the level measurement device is mounted within the water tank.

30. A kit of parts arrangement according to claim 28, wherein the float member comprises a magnetic portion having magnetic properties.

31. The kit of parts arrangement of claim 30, wherein the entire float member is a magnetic member.

32. A kit of parts arrangement according to any one of claims 28-31, wherein the number of float members is at least one.

33. A kit of parts as claimed in claim 32, wherein the number of said float members is at least two and different ones of said float members are located at different height positions within said tank.

34. A kit of parts arrangement according to claim 33, wherein at least two of the float members are vertically spaced apart.

35. A kit of parts arrangement as claimed in any of claims 28 to 31, wherein the float assembly further comprises a bracket to which the float member is rotatably connected by a horizontal pivot shaft.

36. A kit of parts arrangement according to claim 35, wherein the bracket is detachably connected within the water tank.

37. The kit of claim 36, wherein the bracket is attached to the inner tank wall by a threaded fastener; or the bracket is clamped with the inner wall of the water tank.

38. A kit of parts arrangement according to claim 35, wherein the horizontal pivot axis is connected to a middle part of the float member.

39. A kit of parts as claimed in claim 38, wherein the first end of the float member is adapted to create a buoyant force when in contact with the liquid in the tank, the second end of the float member is magnetic, and the distance between the second end of the float member and the inner wall of the tank is less than the distance between the first end of the float member and the inner wall of the tank.

40. A kit of parts according to claim 39, wherein the second end of the float member is offset from the magnetic induction unit when the first end of the float member is not buoyant; when the first end of the buoy member generates buoyancy, the position of the second end of the buoy member corresponds to the position of the magnetic induction unit.

41. A kit of parts arrangement as claimed in claim 39, wherein the position of the second end of the float member corresponds to the position of the magnetic induction unit when the first end of the float member is not buoyant; when the first end of the buoy member generates buoyancy, the second end of the buoy member and the magnetic induction unit are staggered.

42. A kit of parts arrangement according to any of claims 39-41, wherein the first end of the float member has a closed hollow cavity, the density of the medium in the hollow cavity being less than the density of the liquid in the tank.

43. The kit of parts arrangement of claim 42, wherein the hollow cavity is a vacuum cavity or is filled with air.

44. A kit of parts arrangement according to any one of claims 39-41, wherein the distance of the first end of the float member to the horizontal pivot axis is greater than the distance of the second end of the float member to the horizontal pivot axis.

45. A kit of parts arrangement as claimed in claim 44, wherein the distance from the first end of the float member to the horizontal pivot axis is 2-4 times the distance from the second end of the float member to the horizontal pivot axis.

46. A liquid adding device of an unmanned aerial vehicle is characterized by comprising a base, a liquid adding assembly and a non-contact measuring assembly, wherein the liquid adding assembly is installed on the base and used for filling liquid into a medicine box device, the non-contact measuring assembly is connected with the base and used for detecting the liquid level of the liquid in a water tank of the medicine box device,

the non-contact measuring assembly is used for being matched with a buoy assembly in the water tank, the buoy assembly and the non-contact measuring assembly are arranged at intervals, the buoy assembly comprises a buoy member which can move along with the liquid level change of liquid in the water tank, and the non-contact measuring assembly is used for sensing the position of the buoy member and according to the buoy member Is/are as followsThe position determines the level of liquid in the tank.

47. The device according to claim 46, further comprising a controller, wherein the liquid feeding assembly and the non-contact measuring assembly in the cartridge device are electrically connected to the controller, and the controller is configured to control the operating state of the liquid feeding assembly according to the liquid level detected by the non-contact measuring assembly.

48. The filling apparatus of claim 46, wherein said tank is removably attachable to said base by hand.

49. The charging device according to claims 46-48, characterized in that the sensing means of said non-contact measuring assembly comprises any one of the following sensing: magnetic field induction, electric field induction, optical induction.

50. The charging device according to claims 46 to 48, characterized in that said non-contact measuring assembly comprises at least one magnetic induction unit.

51. The filling apparatus according to claim 50, wherein said non-contact measuring assembly comprises at least two of said magnetic induction units, and different ones of said magnetic induction units are located at different heights of said water tank.

52. The charging device according to claim 51, wherein at least two of said magnetic induction units are vertically spaced apart.

53. The charging device according to any one of claims 50 to 52, wherein said magnetic induction unit comprises any one of: hall sensor, magnetic switch.

54. The charging device according to any one of claims 50 to 52, characterized in that said magnetic induction unit is mounted on an outer wall of said tank.

55. The charging device according to any one of claims 46 to 48, characterized in that said float comprises a magnetic portion having magnetic properties.

56. The filling apparatus of claim 55, wherein the entire float member is magnetic.

57. The filling apparatus according to any one of claims 46 to 48, wherein the number of float members is at least one.

58. The filling apparatus according to claim 57, wherein said float members are at least two in number and different ones of said float members are located at different elevations within said tank.

59. The filling apparatus of claim 58, wherein at least two of said float members are vertically spaced apart.

60. The charging device according to any one of claims 46 to 48, characterized in that said float assembly further comprises a bracket to which said float member is rotatably connected by a horizontal rotating shaft.

61. The filling apparatus of claim 60, wherein said holder is removably attached within said tank.

62. The filling apparatus according to claim 61, wherein said support is connected to said tank inner wall by threaded fasteners; or the bracket is clamped with the inner wall of the water tank.

63. The filling apparatus of claim 60, wherein said horizontal axis of rotation is connected to a central portion of said float member.

64. The filling apparatus according to claim 63, wherein the first end of the float member is adapted to generate buoyancy when contacting the liquid in the tank, the second end of the float member is magnetic, and the distance between the second end of the float member and the inner wall of the tank is less than the distance between the first end of the float member and the inner wall of the tank.

65. The filling apparatus according to claim 64, wherein the second end of the float member is offset from the magnetic induction unit when the first end of the float member is not buoyant; when the first end of the buoy member generates buoyancy, the position of the second end of the buoy member corresponds to the position of the magnetic induction unit.

66. The filling apparatus according to claim 64, wherein the position of the second end of the float member corresponds to the position of the magnetic induction unit when the first end of the float member is not buoyant; when the first end of the buoy member generates buoyancy, the second end of the buoy member and the magnetic induction unit are staggered.

67. The filling apparatus according to any one of claims 64 to 66, wherein the first end of the float member has a closed hollow cavity, the density of the medium in the hollow cavity being less than the density of the liquid in the tank.

68. The charging device according to claim 67, characterized in that said hollow cavity is a vacuum chamber or filled with air.

69. The charging device according to any one of claims 64 to 66, characterized in that the distance from the first end of said float member to said horizontal rotation axis is greater than the distance from the second end of said float member to said horizontal rotation axis.

70. The filling apparatus of claim 69, wherein the distance from the first end of the float member to the horizontal axis of rotation is 2-4 times the distance from the second end of the float member to the horizontal axis of rotation.

71. An unmanned aerial vehicle comprising a frame and a kit arrangement of any of claims 28 to 45, the water tank of the kit arrangement being removably mounted to the frame.

72. An unmanned aerial vehicle comprising a frame and the charging device of any one of claims 46-70, wherein the charging device is located on the frame.

Technical Field

The invention relates to the field of measurement, in particular to a liquid level measuring device of an unmanned aerial vehicle, a medicine box device, a liquid adding device and an unmanned aerial vehicle.

Background

With the continuous improvement of the technological level, more and more unmanned aerial vehicles appear in various fields of work and life of people.

At present, the unmanned aerial vehicle can be used for agricultural operation such as spraying or irrigation. Wherein, can carry water tank or medical kit on the unmanned vehicles to spout medicine and irrigate the farmland of below at the flight in-process. Wherein, for monitoring the liquid surplus in the water tank, be provided with level sensor in the water tank usually, level sensor passes through connecting wires such as cable and is connected to unmanned vehicles's frame on, the liquid level signal that level sensor detected like this can transmit the controller to unmanned vehicles on to let the operation personnel learn the surplus liquid measure of water tank.

However, the control circuit on the liquid level sensor and the unmanned aerial vehicle frame is usually connected by using an electric connector such as a plug, the plugging is difficult, and the quick disassembly and assembly of the water tank are difficult to realize.

Disclosure of Invention

The invention provides a liquid level measuring device, a medicine box device, a liquid adding device and an unmanned aerial vehicle of an unmanned aerial vehicle, which can realize liquid level measurement, simplify the structure of the liquid level measuring device and avoid the interference of the liquid level measuring device on the normal installation and disassembly of a water tank.

In a first aspect, the present invention provides a liquid level measuring device for an unmanned aerial vehicle, including a float assembly and a non-contact measuring assembly, wherein the float assembly is configured to be disposed in a water tank, the float assembly includes a float member movable with a liquid level of a liquid in the water tank, the non-contact measuring assembly is capable of being disposed outside the water tank and spaced from the float assembly, and the non-contact measuring assembly is configured to sense a position of the float member and determine the liquid level of the liquid in the water tank according to the position of the float member.

In a second aspect, the invention provides a medicine box device of an unmanned aerial vehicle, which comprises a water tank, a fixing structure and the liquid level measuring device, wherein the fixing structure is positioned outside the water tank, and a non-contact measuring assembly in the liquid level measuring device is arranged on the fixing structure.

In a third aspect, the invention provides a medicine box device of an unmanned aerial vehicle, which comprises a water tank, a pesticide box and a pesticide box, wherein the water tank is used for containing pesticides; and a float assembly disposed in the tank, the float assembly including a float member movable in response to a change in a level of liquid in the tank;

the buoy assembly can be matched with a non-contact measuring assembly located outside the water tank, the buoy assembly and the non-contact measuring assembly are arranged at intervals, and the non-contact measuring assembly is used for sensing the position of the buoy member and determining the liquid level of liquid in the water tank according to the position of the buoy member.

In a fourth aspect, the invention provides a liquid adding device of an unmanned aerial vehicle, which comprises a base, a liquid adding assembly and a non-contact measuring assembly, wherein the liquid adding assembly is arranged on the base and is used for filling liquid into a medicine box device, the non-contact measuring assembly is connected with the base and is used for detecting the liquid level of the liquid in a water tank of the medicine box device,

the non-contact measuring assembly is used for being matched with a buoy assembly in the water tank, the buoy assembly and the non-contact measuring assembly are arranged at intervals, the buoy assembly comprises a buoy part which can move along with the liquid level change of liquid in the water tank, and the non-contact measuring assembly is used for sensing the position of the buoy part and determining the liquid level of the liquid in the water tank according to the position of the buoy part.

In a fifth aspect, the invention provides an unmanned aerial vehicle, which comprises a frame and the medicine box device, wherein the water tank of the medicine box device is detachably arranged on the frame.

In a sixth aspect, the invention provides an unmanned aerial vehicle, which comprises a frame and the liquid adding device, wherein the liquid adding device is positioned on the frame.

The invention provides a liquid level measuring device of an unmanned aerial vehicle, a medicine box device, a liquid adding device and an unmanned aerial vehicle. The liquid level measuring device is through setting up the buoy subassembly in the water tank, set up non-contact measuring subassembly outside the water tank, utilize the response process between the magnetism portion of buoy subassembly and non-contact measuring subassembly's the magnetism response unit, realize the purpose of measuring the water tank liquid level, wherein utilize the magnetic field response principle can avoid setting up connecting wire at buoy subassembly and non-contact measuring subassembly, when carrying out the measurement to liquid level in the water tank, avoid the normal installation and the dismantlement of liquid level measuring device interference to the water tank, liquid level measuring device's structure is comparatively simple simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a liquid level measuring device of an unmanned aerial vehicle according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a buoy assembly of a liquid level measurement device of an unmanned aerial vehicle according to a first embodiment of the invention;

fig. 3 is a schematic structural diagram of a float member of the liquid level measurement device of the unmanned aerial vehicle according to the first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a non-contact measurement component of a liquid level measurement device of an unmanned aerial vehicle according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a state in which a float member of the liquid level measurement device of the unmanned aerial vehicle corresponds to a magnetic induction unit according to the first embodiment of the present invention;

fig. 6 is a schematic structural diagram of a liquid level measuring device of an unmanned aerial vehicle according to an embodiment of the present invention, in which a float member and a magnetic induction unit are staggered with each other;

fig. 7 is a front view of a medicine box device of an unmanned aerial vehicle according to a second embodiment of the present invention;

fig. 8 is a side view of a medicine box device of an unmanned aerial vehicle according to a second embodiment of the present invention;

fig. 9 is a schematic structural view of an unmanned aerial vehicle according to a fifth embodiment of the present invention;

fig. 10 is a schematic structural diagram of an unmanned aerial vehicle according to a sixth embodiment of the present invention.

Description of reference numerals:

10-a water tank; 20-a liquid level measuring device; 21-a buoy assembly; 211 — a float member; 211 a-first end; 211 b-horizontal rotating shaft; 211c — second end; 212-a holder; 213-a threaded fastener; 22-a non-contact measuring assembly; 221-a magnetic induction unit; 222-a strut; 223-locking nut; 30-a fixed structure; 40-a kit arrangement; 50-a liquid adding device; 60, 60' -an unmanned aerial vehicle; 61, 61' -fuselage; 62, 62' -horn.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.