CN110770126A

CN110770126A - Case lid, liquid reserve tank and unmanned vehicles

Info

Publication number: CN110770126A
Application number: CN201880039800.0A
Authority: CN
Inventors: 周万仁; 卢绰莹; 吴晓龙
Original assignee: Shenzhen Dajiang Innovations Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd; Shenzhen Dajiang Innovations Technology Co Ltd
Priority date: 2018-08-30
Filing date: 2018-08-30
Publication date: 2020-02-07
Also published as: WO2020042073A1

Abstract

A tank lid, a tank and an unmanned aerial vehicle, the tank lid (30) comprising: a clamping ring (1) for fixed connection with the liquid storage tank; the cover body (2) is matched with the clamping ring, the cover body and the clamping ring form an accommodating space (3), and the cover body is provided with an opening (21) communicated with the accommodating space; and a sealing structure (4) which is accommodated in the accommodating space and is rotationally connected with the cover body; the sealing structure comprises a sealing state and an opening state, wherein when the sealing structure is in the sealing state, the sealing structure is matched with the opening under the action of self locking force to seal the opening; when pressure is applied to the sealing structure, the sealing structure can rotate to an opening state relative to the cover body in the accommodating space so as to open the opening. Through set up lid pivoted seal structure relatively on the lid, under the external pressure effect, seal structure can overcome self locking force and the relative lid rotates to the open mode for the opening is opened, need not the manual case lid that opens.

Description

Case lid, liquid reserve tank and unmanned vehicles

Technical Field

The invention relates to the field of box covers, in particular to a box cover, a liquid storage box and an unmanned aerial vehicle.

Background

In agricultural unmanned aerial vehicle and relevant trade, the speed of filling liquid such as very much attention medical kit, water tank, but the case lid of traditional liquid reserve tank is generally screwed through the screw or buckle fastening structure is fixed on the box, when adding liquid medicine (or other liquid) in the box, needs manually to dismantle the whole or part of case lid from the box, reuses automatic doser and adds the liquid medicine in the box. Traditional scheme can't realize using the function of automatic doser for the quick liquid medicine that adds of box under the condition of not manually opening the case lid, has not only influenced the medicine speed, still because operating procedure is too much, the liquid medicine is fascinated easily, causes extravagant and environmental pollution.

Disclosure of Invention

The invention provides a tank cover, a liquid storage tank and an unmanned aerial vehicle.

Specifically, the invention is realized by the following technical scheme:

according to a first aspect of the present invention, there is provided a cover for a liquid storage tank, comprising:

a hoop ring for fixed connection with the reservoir;

the cover body is matched with the clamping ring, an accommodating space is formed by the cover body and the clamping ring, an opening is formed in the cover body, and the opening is communicated with the accommodating space; and

the sealing structure is accommodated in the accommodating space and is rotationally connected with the cover body;

the sealing structure comprises a sealing state and an opening state, wherein when the sealing structure is in the sealing state, the sealing structure is matched with the opening under the action of self locking force to seal the opening;

when pressure is applied to the sealing structure, the sealing structure can rotate relative to the cover body in the containing space to the opening state so as to open the opening.

According to a second aspect of the present invention, there is provided a reservoir comprising:

the box body is provided with a liquid storage cavity;

the first opening part is arranged on the box body and communicated with the liquid storage cavity; and

a case lid, the case lid includes:

a tightening ring fixedly connected with the first opening part;

According to a third aspect of the present invention, there is provided an unmanned aerial vehicle comprising:

a frame;

the liquid storage tank is fixed on the rack;

wherein, the liquid reserve tank includes the box, locates the first opening and the case lid of box, the box has a stock solution chamber, first opening with stock solution chamber intercommunication, the case lid includes:

a tightening ring fixedly connected with the first opening part;

According to the technical scheme provided by the embodiment of the invention, the sealing structure which can rotate relative to the cover body is arranged on the cover body, and the sealing structure can seal the opening on the cover body under the action of the locking force of the sealing structure, so that the liquid medicine in the liquid storage tank is prevented from splashing; seal structure can also be under the external pressure (hold the power in the top of seal structure like automatic doser water injection well choke top), overcome the locking force of self and relative lid rotates to the open mode to make the opening open, add the liquid medicine for the liquid reserve tank fast through automatic doser, need not the manual case lid of opening, the efficiency of liquid medicine interpolation has been promoted, make the utilization ratio of liquid medicine improve, clean environmental protection, and solved the problem that the case lid that needs manual opening hinders automatic doser and add the liquid medicine for the liquid reserve tank fast.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic view of a reservoir according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a perspective view of a cover in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a lid in a sealed condition in accordance with an embodiment of the present invention;

FIG. 5 is a perspective view of a lid in a sealed condition in accordance with an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a lid in an open position in accordance with an embodiment of the present invention;

FIG. 7 is a perspective view of a lid in an open condition in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a portion of a cover according to an embodiment of the present invention;

FIG. 9 is a partial perspective view of a cover in an embodiment of the present invention;

FIG. 10 is a perspective view of the cover of one embodiment of the present invention in another orientation;

fig. 11 is a perspective view of an unmanned aerial vehicle in an embodiment of the invention.

Reference numerals:

100: a frame; 200: a liquid storage tank; 10: a box body; 20: a first opening portion; 30: a box cover; 1: a tightening ring; 2: a cover body; 21: an opening; 22: an installation part; 3: an accommodating space; 4: a sealing structure; 41: a sealing cover; 411: air holes; 412: a connecting portion; 4121: a first connection portion; 4122: a second connecting portion; 413: a groove; 42: a locking member; 421: a connecting shaft; 422: a torsion spring; 4221: an end portion; 4222: a plug-in part; 43: a first seal member; 44: a vent seal; 441: a knob; 442: a gasket; 5: a second seal member; 6: a rotating shaft; 7: a locking mechanism; 8: a screw; 40: a second opening portion.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

The tank cover, the liquid storage tank and the unmanned aerial vehicle of the invention are described in detail below with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.

Example one

Referring to fig. 1 to 7, a cover 30 of a liquid storage tank 200 according to an embodiment of the present invention may include a clamping ring 1, a cover 2, and a sealing structure 4. Wherein, hoop ring 1 is used for with liquid reserve tank 200 fixed connection, specifically, liquid reserve tank 200 includes box 10 and locates the first opening 20 on the box 10, hoop ring 1 and first opening 20 (being the inlet) fixed connection. The cover 2 of the present embodiment is engaged with the fastening ring 1, and the cover 2 and the fastening ring 1 form a receiving space 3. Further, the cover 2 is further provided with an opening 21, and the opening 21 is communicated with the accommodating space 3. The seal structure 4 is accommodated in the accommodation space 3, and the seal structure 4 is rotatably connected to the lid body 2.

The seal structure 4 of the present embodiment includes a sealed state and an opened state. When the sealing structure 4 is in a sealing state (at this time, the box cover 30 is also in a sealing state), the sealing structure 4 cooperates with the opening 21 under the action of the self-locking force to seal the opening 21 and prevent the liquid medicine (or other liquid) in the box body 10 from splashing out.

When the seal structure 4 is pressurized, the seal structure 4 can be rotated to an open state (at this time, the cover 30 is also in an open state) within the housing space 3 with respect to the lid body 2 to open the opening 21. The sealing structure 4 of this embodiment can overcome the locking force of self and rotate to the open mode relatively lid 2 under the external pressure effect to make opening 21 open, need not the manual case lid 30 of opening and can add the liquid medicine in the box 10 fast, promote the efficiency that the liquid medicine added.

In the present embodiment, the sealing structure 4 is pressurized from the side of the sealing structure 4 away from the housing space 3, so that the sealing structure 4 is switched from the sealed state to the open state. For example, when needing to use automatic doser to add the liquid medicine for liquid reserve tank 200, accessible automatic doser water injection well choke top is held seal structure 4 and is kept away from accommodating space 3 and goes out one side, when the locking force of seal structure 4 is overcome to the top holding force that the water injection well choke was exerted on seal structure 4, seal structure 4 rotates to the open mode relative lid 2 in accommodating space 3 promptly for opening 21 is opened, and the water injection well choke stretches into opening 21 and gets into in the box 10 and realize the function of adding the liquid medicine fast, need not manual case lid 30 of opening. The automatic extension of the water nozzle into the opening 21 can not only prevent the added liquid medicine from spilling, but also save the cost, and has the advantages of cleanness, sanitation and environmental protection.

The lid 2 of the present embodiment is substantially circular, and the opening 21 is provided in the middle of the lid 2 or at another position of the lid 2. The opening 21 may be circular, oval or other shape, and the shape and size of the sealing structure 4 are matched with those of the opening 21.

The specific structure of the sealing structure 4 may be designed according to actual requirements, for example, in the embodiment shown in fig. 4 to 7, the sealing structure 4 may include a sealing cover 41 and a locking member 42 for connecting the sealing cover 41 to the cover body 2. Specifically, the locker 42 has a locking force, and the sealing cover 41 is engaged with the opening 21 by the locking force of the locker 42 to seal the opening 21. When the sealing cover 41 is pressurized, the sealing cover 41 can be rotated in the housing space 3 to be separated from the opening 21 with respect to the lid body 2 to open the lid body 2. In this embodiment, when the box cover 30 is in the sealed state, a pushing force can be applied to the sealing cover 41 from the side of the sealing cover 41 away from the accommodating space 3, and when the pushing force is large enough (the pushing force can overcome the locking force of the locking member 42), the sealing cover 41 will rotate relative to the cover 2 and separate from the opening 21, thereby opening the cover 2. In the process of opening the cover body 2, the water nozzle of the automatic doser can apply jacking force to the sealing cover 41, so that the time for manually disassembling the box cover 30 from the box body 10 is saved, and the liquid medicine adding efficiency is improved.

The shape and size of the sealing cover 41 of the present embodiment are adapted to the shape and size of the opening 21. In one embodiment, the sealing cover 41 has a size equal to that of the opening 21, and the sealing cover 41 is embedded in the opening 21. In another embodiment, the sealing cover 41 is slightly larger than the opening 21, and the side of the sealing cover 41 remote from the housing space 3 abuts the edge of the opening 21.

When the seal structure 4 is in the sealed state, the side of the seal cover 41 remote from the housing space 3 abuts against the area of the lid body 2 near the opening 21,

the specific structure of the locking member 42 can also be designed according to practical requirements, for example, in the embodiment shown in fig. 4 to 7, the locking member 42 can include a connecting shaft 421 and a torsion spring 422 sleeved on the connecting shaft 421. The sealing cover 41 of this embodiment is connected to the lid body 2 through a connecting shaft 421, and one end of the torsion spring 422 is engaged with the lid body 2 and the other end is engaged with the sealing cover 41.

Referring to fig. 5 and 7, the cover 2 is provided with a mounting portion 22, the sealing cover 41 is provided with a connecting portion 412, and the connecting shaft 421 penetrates the mounting portion 22 and the connecting portion 412, so that the sealing cover 41 is rotatably connected to the cover 2. Specifically, the connecting portion 412 includes a first connecting portion 4121 and a second connecting portion 4122, and the mounting portion 22 is disposed between the first connecting portion 4121 and the second connecting portion 4122. The connecting shaft 421 includes a first end and a second end (not labeled in the figure), the first end is inserted into the first connecting portion 4121 after passing through the mounting portion 22, the second end is inserted into the second connecting portion 4122 after passing through the mounting portion 22, and the torsion spring 422 is disposed between the first end and the second end, so that the torsion spring 422 can be limited by the first connecting portion 4121 and the second connecting portion 4122.

Alternatively, the connecting portion 412 may be integrally formed with the sealing cover 41, or/and the mounting portion 22 may be integrally formed with the lid body 2.

In the sealing cover 41 of the present embodiment, whether in the sealing state or the opening state, the torsion spring 422 always maintains a state in which one end thereof is engaged with the lid body 2 and the other end thereof is engaged with the sealing cover 41. For example, in one embodiment, referring to fig. 8, the torsion spring 422 includes two end portions 4221 and an insertion portion 4222 disposed between the two end portions 4221, the two end portions 4221 abut against one side of the cover body 2 facing the accommodating space 3, and the insertion portion 4222 is inserted into and engaged with the sealing cover 41. In this embodiment, the sealing cover 41 includes a plug groove, and the plug portion 4222 is plugged into the plug groove. In the process that the sealing cover 41 rotates relative to the cover body 2, the insertion part 4222 is in insertion fit with the insertion groove, so that the torsion spring 422 is not easy to separate from the sealing cover 41, the torsion spring 422 is ensured to apply a locking force to the sealing cover 41 all the time, and after the external pressure is removed, the sealing cover 41 can be restored to a sealing state from an opening state under the action of the locking force. Wherein, the inserting groove is arranged between the first connecting part 4121 and the second connecting part 4122. Of course, the two end portions 4221 may be engaged with the side of the cover 2 facing the receiving space 3, and/or the engagement portion 4222 may abut against the seal cover 41.

In another embodiment, the torsion spring 422 includes two end portions 4221, one end portion 4221 abuts or is inserted into one side of the cover 2 facing the accommodating space 3, and the other end portion 4221 abuts or is inserted into the sealing cover 41.

Of course, the torsion spring 422 of the present embodiment may be replaced by other elastic members having locking force.

Referring again to fig. 4-7, the sealing structure 4 may further include a first sealing member 43 disposed on the sealing cover 41. When the sealing structure 4 is in the sealing state, the first sealing member 43 is engaged with the sealing cover 41 toward the side of the accommodating space 3 to seal the opening 21 and prevent the liquid medicine in the case 10 from leaking out from the connection between the opening 21 and the sealing cover 41. The first seal 43 of the present embodiment is a packing, and seals the periphery of the opening 21 with the packing to prevent leakage of the chemical solution. In addition, the material of the first sealing member 43 can be selected according to the requirement, such as rubber, silicon gel, etc.

The way of matching the first sealing member 43 with the sealing cover 41 can be designed according to the requirement, for example, in the embodiment shown in fig. 9, the sealing cover 41 is slightly larger than the opening 21, the edge of the side of the sealing cover 41 far away from the accommodating space 3 is provided with a groove 413, and the first sealing member 43 is embedded in the groove 413. In the present embodiment, the seal cover 41 prevents the leakage of the chemical solution from the joint between the seal cover 41 and the opening 21 by the first seal 43 abutting against the edge of the opening 21.

In another embodiment, the sealing cover 41 has a size equal to that of the opening 21, the first sealing member 43 is sleeved on the outer edge of the sealing cover 41, and the sealing cover 41 is in interference fit with the opening 21 via the first sealing member 43, so as to prevent the liquid medicine from leaking out from the connection between the sealing cover 41 and the opening 21.

Referring to fig. 3 to 9, the sealing cover 41 is provided with an air hole 411, and the sealing structure 4 further includes a ventilation sealing member 44 provided inside the sealing cover 41. In this embodiment, when the air pressure in the tank 200 is greater than or equal to a predetermined pressure (the predetermined pressure is greater than or equal to atmospheric pressure), the vent seal 44 is used to seal the air hole 411 to prevent the liquid medicine in the tank 200 from flowing out through the air hole 411. After the liquid medicine in the liquid reserve tank 200 flows out from the liquid outlet, can make the atmospheric pressure in the liquid reserve tank 200 reduce gradually when the atmospheric pressure in the liquid reserve tank 200 reduces to being less than preset pressure, ventilate sealing member 44 and air vent 411 phase separation to make the atmospheric pressure in the liquid reserve tank 200 equal to atmospheric pressure.

In the present embodiment, the ventilation sealing member 44 includes a knob 441 and a sealing pad 442 disposed on the knob 441, and the knob 441 is fixedly connected to the sealing cover 41. The packing 442 is used to seal the air hole 411 when the air pressure in the reservoir 200 is greater than or equal to a predetermined pressure. When the air pressure in the liquid storage tank 200 is less than the predetermined pressure, the gasket 442 is separated from the air hole 411, so that the air pressure in the liquid storage tank 200 is gradually increased to be equal to the atmospheric pressure. Specifically, when the amount of the liquid medicine in the liquid storage tank 200 is large, the air pressure in the liquid storage tank 200 is greater than or equal to the preset pressure, and at this time, the air hole 411 is blocked by the gasket 442 under the action of the air pressure in the liquid storage tank 200 (the action force of the air pressure in the liquid storage tank 200 on the gasket 442 is opposite to the direction a shown in fig. 4), so that the air hole 411 is sealed, and the liquid medicine in the liquid storage tank 200 is prevented from flowing out through the air hole 411. When the liquid medicine volume in the liquid reserve tank 200 flows from the liquid outlet of the liquid reserve tank 200 gradually, so that the air pressure in the liquid reserve tank 200 is gradually reduced, the external atmospheric pressure can push open the sealing gasket 442 (the acting force of the external atmospheric pressure on the sealing gasket 442 is in the direction a shown in fig. 4), so that the sealing gasket 442 is separated from the air hole 411, the air pressure in the liquid reserve tank 200 is kept consistent with the external atmospheric pressure, the air pressure is kept balanced, the air pressure in the liquid reserve tank 200 is prevented from being too low, and the liquid medicine is difficult to flow out.

The fixing connection between the knob 441 and the sealing cover 41 can be designed as required, for example, in an embodiment, a first buckle is disposed in the sealing cover 41, and the knob 441 is engaged with the first buckle. In other embodiments, the knob 441 may be fixedly connected to the sealing cover 41 by screwing, plugging, or the like.

The tightening ring 1 and the lid body 2 may be integrally formed or may be provided separately. When the tightening ring 1 and the cover body 2 are arranged separately, the cover body 2 is connected to the tightening ring 1. The connection mode of the cover 2 and the tightening ring 1 can be selected according to the requirement, for example, in an embodiment, the cover 30 further includes a rotating shaft 6, the cover 2 is rotatably connected to the tightening ring 1 through the rotating shaft 6, and the cover 2 can rotate relative to the tightening ring 1 to realize opening and closing. In other embodiments, the cover 2 and the fastening ring 1 may be screwed, fastened or otherwise connected.

The fastening manner of the fastening ring 1 and the reservoir 200 can be selected according to the requirement, for example, in one embodiment, the inner sidewall or the outer sidewall of the fastening ring 1 is provided with a thread for fixedly connecting with the reservoir 200 (specifically for fixedly connecting with the first opening 20). In another embodiment, the inner sidewall or the outer sidewall of the fastening ring 1 is provided with a fastener for fixedly connecting with the reservoir 200 (specifically, for fixedly connecting with the first opening 20).

Further, referring to fig. 3 to 7 and fig. 10, the box cover 30 further includes a locking mechanism disposed on the tightening ring 1, and one end of the locking mechanism is fixedly connected to the cover 2 to lock the cover 2 on the tightening ring 1. The other end of the locking mechanism is fixedly connected to the liquid storage tank 200 to lock the cover 2 and the tightening ring 1 to the liquid storage tank 200. Optionally, the locking mechanism includes a locking portion fixedly connected to the outer side wall of the hooping ring 1, the cover body 2 is provided with a second buckle, and the locking portion is in clamping fit with the second buckle. Of course, the matching mode of the locking mechanism and the cover body 2 is not limited to the clamping mode, and the locking mechanism and the cover body 2 can also be fixedly connected by adopting the screw 8 connection or other modes. In addition, the locking mechanism may be connected to the reservoir 200 by a snap-fit connection, or other connection.

In this embodiment, the locking portion is fixedly attached to the outer side wall of the tightening ring 1 by a screw 8. Optionally, the outer side wall of the tightening ring 1 is provided with a first protrusion and a second protrusion (not shown in the drawings), one end of the screw 8 is fixedly connected with the first protrusion, the other end of the screw is fixedly connected with the second protrusion, and the locking portion is fixedly connected with the portion of the screw 8 located between the first protrusion and the second protrusion.

Further, the lid 30 of the present embodiment further includes a second seal 5 provided on the side of the lid body 2 facing the housing space 3. When the lid 2 is placed on the first opening 20 of the reservoir 200, the second sealing member 5 seals the first opening 20 to prevent leakage of the chemical solution from the joint between the second opening 40 and the lid 2.

The matching manner of the second sealing member 5 and the cover 2 can be designed according to requirements, for example, the second sealing member 5 can be embedded on the cover 2, and can also be attached on the cover 2. The second sealing member 5 of the present embodiment is a gasket, and prevents leakage of the chemical liquid by sealing the periphery of the first opening 20 with the gasket. In addition, the material of the second sealing member 5 can be selected according to the requirement, such as rubber, silicon gel, etc.

Example two

Referring to fig. 1, a second embodiment of the present invention provides a liquid storage tank 200, where the liquid storage tank 200 may include a tank body 10, a first opening 20 formed in the tank body 10, and a tank cover 30. Wherein, the box body 10 is provided with a liquid storage cavity for storing liquid medicine. The first opening 20 communicates with the liquid storage chamber, and the first opening 20 of this embodiment is used as a liquid inlet. The structure of the case cover 30 is shown in fig. 1 to 10, and reference may be made to the description of the first embodiment, which is not repeated herein.

In the present embodiment, the tightening ring 1 of the cover 30 is fixedly connected to the first opening 20. The fastening manner of the fastening ring 1 and the first opening 20 can be selected according to the requirement, for example, in one embodiment, the inner side wall or the outer side wall of the fastening ring 1 is provided with a thread, the corresponding position of the first opening 20 is provided with a matching thread, and the thread of the fastening ring 1 is correspondingly matched with the matching thread of the first opening 20.

In another embodiment, the inner sidewall or the outer sidewall of the fastening ring 1 is provided with a buckle, and the corresponding position of the first opening 20 is provided with a matching portion, and the buckle is fastened with the matching portion.

Referring to fig. 1 and 2, the first opening 20 is formed at the top of the case 10 to facilitate the connection of the cover 30. Alternatively, the first opening portion 20 is integrally formed at the top of the case 10.

Further, the liquid storage tank 200 further includes a second opening portion 40 disposed at the bottom of the tank body 10, the second opening portion 40 is communicated with the liquid storage cavity, and the second opening portion 40 of this embodiment is used as a liquid outlet. In this embodiment, when the amount of the liquid medicine in the liquid storage tank 200 is large, the air pressure in the liquid storage tank 200 is greater than or equal to the predetermined pressure, and at this time, the gasket 442 blocks the air hole 411 under the action of the air pressure in the liquid storage tank 200 (the action force of the air pressure in the liquid storage tank 200 on the gasket 442 is opposite to the direction a shown in fig. 4), so that the air hole 411 is sealed, and the liquid medicine in the liquid storage tank 200 is prevented from flowing out through the air hole 411. When the amount of the liquid medicine in the liquid storage tank 200 gradually flows out from the second opening 40, so that the air pressure in the liquid storage tank 200 gradually decreases, the external atmospheric pressure can push the sealing gasket 442 open (the acting force of the external atmospheric pressure on the sealing gasket 442 is in the direction a shown in fig. 4), so that the sealing gasket 442 is separated from the air hole 411, the air pressure in the liquid storage tank 200 is kept consistent with the external atmospheric pressure, the air pressure is kept balanced, the phenomenon that the air pressure in the liquid storage tank 200 is too low and the liquid medicine is difficult to flow out is avoided, and the liquid medicine in the liquid storage chamber is completely discharged.

In addition, in some embodiments, the reservoir 200 further includes a handle portion disposed on the housing 10 for easy access by a user. Optionally, the handle is integrally formed on the top of the case 10.

The liquid storage tank 200 of the embodiment can be carried on a movable device such as an unmanned vehicle and an unmanned aerial vehicle for use, and can also be used independently. Wherein, when the liquid storage tank 200 is used alone, the liquid storage tank 200 is used as a handheld device.

EXAMPLE III

Referring to fig. 11, a third embodiment of the present invention provides an unmanned aerial vehicle, which may include a airframe 100 and a tank 200 fixed to the airframe 100. The structure of the liquid storage tank 200 is shown in fig. 1 and fig. 2, and reference may be specifically made to the description of the second embodiment, which is not repeated herein.

The frame 100 of the present embodiment may include a body and a stand, and the tank body 10 of the tank 200 may be fixed to the body and/or the stand. The fixing manner of the box 10 and the machine body and/or the frame 100 can be selected from the existing fixing manner.

The unmanned vehicles of this embodiment can be unmanned aerial vehicle, also can be other unmanned aerial vehicle flight device.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above detailed descriptions of the tank cover, the liquid storage tank and the unmanned aerial vehicle provided by the embodiments of the present invention are provided, and the specific examples are applied herein to explain the principle and the embodiments of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A case lid of a liquid reserve tank, comprising:

a hoop ring for fixed connection with the reservoir;

2. The case lid according to claim 1, wherein said sealing structure includes a sealing cover and a retaining member for attaching said sealing cover to said cover body;

the locking piece has locking force, and the sealing cover is matched with the opening under the action of the locking force so as to seal the opening;

when the sealing cover is pressed, the sealing cover can rotate relative to the cover body in the accommodating space to be separated from the opening, so that the cover body is opened.

3. The box cover according to claim 2, characterized in that the locking member comprises a connecting shaft and a torsion spring sleeved on the connecting shaft;

the sealing cover is connected to the cover body through the connecting shaft, one end of the torsion spring is matched with the cover body, and the other end of the torsion spring is matched with the sealing cover.

4. The box cover according to claim 3, wherein the cover body is provided with a mounting portion, the sealing cover is provided with a connecting portion, and the connecting shaft penetrates through the mounting portion and the connecting portion.

5. The case cover according to claim 4, wherein the connecting portion includes a first connecting portion and a second connecting portion, and the mounting portion is provided between the first connecting portion and the second connecting portion;

the connecting shaft package first end and second end, first end wears to establish peg graft behind the installation department in first connecting portion, the second end wears to establish peg graft behind the installation department in the second connecting portion, the torsional spring locate first end with between the second end.

6. A lid according to any one of claims 3 to 5, wherein the torsion spring comprises two ends and a spigot portion disposed between the two ends;

the two end parts are abutted against one side of the cover body facing the accommodating space, and the insertion part is in insertion fit with the sealing cover.

7. The case cover according to claim 2, wherein said sealing structure further comprises a first sealing member provided to said sealing cover;

when the sealing structure is in the sealing state, the first sealing element is matched with one side of the sealing cover facing the accommodating space so as to seal the opening.

8. The box cover according to claim 7, wherein the edge of the side of the sealing cover away from the receiving space is provided with a groove, and the first sealing member is embedded in the groove.

9. The case cover according to claim 2, wherein said sealing cover is provided with an air vent, said sealing structure further comprising a vent seal disposed within said sealing cover;

when the air pressure in the liquid storage tank is greater than or equal to a preset pressure, the ventilation sealing element is used for sealing the air hole;

when the air pressure in the liquid storage box is smaller than the preset pressure, the ventilation sealing element is separated from the air hole, so that the air pressure in the liquid storage box is equal to the atmospheric pressure.

10. The box cover according to claim 9, wherein the ventilation sealing element comprises a knob and a sealing gasket arranged on the knob, a first buckle is arranged in the sealing gasket, and the knob is in clamping fit with the first buckle;

when the air pressure in the liquid storage tank is greater than or equal to a preset pressure intensity, the sealing gasket is used for sealing the air hole;

when the air pressure in the liquid storage tank is smaller than the preset pressure, the sealing gasket is separated from the air hole, so that the air pressure in the liquid storage tank is gradually increased to be equal to the atmospheric pressure.

11. The lid according to claim 1, further comprising a second sealing member provided on a side of the cover facing the receiving space;

the liquid storage tank comprises a first opening part, and when the cover body is covered on the first opening part of the liquid storage tank, the second sealing piece is used for sealing the first opening part.

12. The case lid according to claim 1, wherein said cinch ring is integrally formed with said cover.

13. The case lid according to claim 1, wherein said cinch ring is provided separately from said cover, and wherein said cover is attached to said cinch ring.

14. The cover according to claim 13, further comprising a hinge, wherein the cover is rotatably connected to the tightening ring via the hinge;

or the cover body is connected with the tightening ring in a threaded or buckling mode.

15. The case cover according to claim 1, wherein the inner side wall or the outer side wall of the clamping ring is provided with threads for fixedly connecting with the liquid storage case;

or the inner side wall or the outer side wall of the clamping ring is provided with a buckle for fixedly connecting with the liquid storage tank.

16. The case cover of claim 1, further comprising a locking mechanism disposed on the cinch ring;

one end of the locking mechanism is fixedly connected with the cover body so as to lock the cover body on the tightening ring, and the other end of the locking mechanism is fixedly connected with the liquid storage tank so as to lock the cover body and the tightening ring on the liquid storage tank.

17. The cover of claim 16, wherein the locking mechanism comprises a locking portion fixedly connected to an outer side wall of the tightening ring, and the cover body is provided with a second buckle, and the locking portion is in snap fit with the second buckle.

18. The case cover according to claim 17, wherein the locking portion is fixedly attached to an outer sidewall of the clamping ring by a screw.

19. A liquid storage tank, comprising:

the box body is provided with a liquid storage cavity;

a case lid, the case lid includes:

a tightening ring fixedly connected with the first opening part;

20. A tank according to claim 19 wherein the sealing structure comprises a sealing cover and a retaining member for attaching the sealing cover to the lid;

21. A liquid storage tank according to claim 20 wherein the locking member comprises a connecting shaft and a torsion spring sleeved on the connecting shaft;

22. A tank according to claim 21 wherein the cover is provided with a mounting portion and the sealing cover is provided with a connecting portion, the connecting shaft passing through the mounting portion and the connecting portion.

23. A tank according to claim 22 wherein the connection comprises a first connection and a second connection, the mounting portion being provided between the first and second connections;

24. A reservoir according to any one of claims 21 to 23 wherein the torsion spring comprises two ends and a spigot portion disposed between the two ends;

25. A tank according to claim 20 wherein the sealing arrangement further comprises a first seal member provided to the sealing cover;

26. A tank according to claim 25 wherein the edge of the sealing cover on the side remote from the receiving space is provided with a groove in which the first sealing member is embedded.

27. A tank according to claim 20 wherein the sealing cover is provided with an air vent, the sealing arrangement further comprising a vent seal provided in the sealing cover;

28. The liquid storage tank of claim 27, wherein the ventilation sealing element comprises a knob and a sealing gasket arranged on the knob, a first buckle is arranged in the sealing gasket, and the knob is in clamping fit with the first buckle;

29. A liquid storage tank according to claim 19 wherein the cover further comprises a second sealing member provided on a side of the cover facing the receiving space;

when the cover body covers the first opening part of the liquid storage tank, the second sealing piece is used for sealing the first opening part.

30. A reservoir according to claim 19 wherein the clamp ring is integrally formed with the cover.

31. A tank according to claim 19 wherein the clamp ring is provided separately from the cover and the cover is attached to the clamp ring.

32. A reservoir according to claim 31 wherein said cover further comprises a rotatable shaft, said cover being rotatably connected to said clamp ring by said rotatable shaft;

33. A tank according to claim 19 wherein the inner or outer side wall of the clamp ring is threaded for secure connection to the tank;

34. A reservoir according to claim 19 wherein said cover further comprises a locking mechanism provided on said gripping ring;

35. A reservoir according to claim 34 wherein the locking mechanism comprises a locking portion fixedly connected to an outer side wall of the clamp ring, and the cover body is provided with a second catch, and the locking portion is snap-fitted with the second catch.

36. A tank according to claim 35 wherein the locking portion is fixedly attached to an outer side wall of the clamp ring by screws.

37. A tank according to claim 19 wherein the first opening is provided at an inclined position at the top of the tank.

38. A tank according to claim 37 further comprising:

and the second opening part is arranged at the bottom of the box body and communicated with the liquid storage cavity.

39. A tank according to claim 19 further comprising:

a handle part arranged on the box body.

40. An unmanned aerial vehicle, comprising:

a frame;

the liquid storage tank is fixed on the rack;

a tightening ring fixedly connected with the first opening part;

41. The UAV of claim 40 wherein the sealing structure comprises a sealing cover and a retaining member for attaching the sealing cover to the cover;

42. The unmanned aerial vehicle of claim 41, wherein the locking member comprises a connecting shaft and a torsion spring sleeved on the connecting shaft;

43. The UAV of claim 42 wherein the cover has a mounting portion and the sealing cover has a connecting portion, and the connecting shaft extends through the mounting portion and the connecting portion.

44. The UAV of claim 43 wherein the connection portion comprises a first connection portion and a second connection portion, the mounting portion being disposed between the first connection portion and the second connection portion;

45. The UAV of any one of claims 42 to 44 wherein the torsion spring comprises two ends and a socket provided therebetween;

46. The UAV of claim 41 wherein the sealing structure further comprises a first seal disposed on the seal cover;

47. The UAV according to claim 46 wherein the edge of the sealing cover on the side remote from the receiving space is provided with a groove in which the first sealing element is embedded.

48. The UAV of claim 41 wherein the seal cap is provided with an air vent, the seal structure further comprising a vent seal disposed within the seal cap;

49. The UAV of claim 48 wherein the vent seal comprises a knob and a gasket disposed on the knob, wherein a first snap is disposed in the gasket, and the knob is snap-fitted to the first snap;

50. The UAV of claim 40 wherein the cover further comprises a second seal disposed on a side of the cover facing the receiving space;

51. The UAV of claim 40 wherein the cinch ring is integrally formed with the cover.

52. The UAV of claim 40 wherein the cinch ring is provided separately from the cover and the cover is attached to the cinch ring.

53. The UAV of claim 52 wherein the cover further comprises a hinge, the cover being pivotally coupled to the cinch ring via the hinge;

54. The UAV of claim 40 wherein the inner or outer sidewall of the cinch ring is threaded for secure connection to the tank;

55. The UAV of claim 40 wherein the tank cap further comprises a locking mechanism on the cinch ring;

56. The UAV of claim 55, wherein the locking mechanism comprises a locking portion fixedly connected to an outer side wall of the tightening ring, and the cover body is provided with a second buckle, and the locking portion is in clamping fit with the second buckle.

57. The UAV of claim 56 wherein the locking portion is fixedly attached to an outer sidewall of the cinch ring by a screw.

58. The UAV of claim 40 wherein the first opening is provided at an angle to the top of the tank.

59. The UAV of claim 58 further comprising:

60. The UAV of claim 40 further comprising:

a handle part arranged on the box body.