CN204264455U - A kind of U-shaped medicine-chest of agricultural depopulated helicopter - Google Patents
A kind of U-shaped medicine-chest of agricultural depopulated helicopter Download PDFInfo
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- CN204264455U CN204264455U CN201420646324.8U CN201420646324U CN204264455U CN 204264455 U CN204264455 U CN 204264455U CN 201420646324 U CN201420646324 U CN 201420646324U CN 204264455 U CN204264455 U CN 204264455U
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Abstract
The utility model discloses a kind of U-shaped medicine-chest of agricultural depopulated helicopter, it comprises medicine-chest body, this medicine-chest body has a groove makes the U-shaped structure in its cross section, this U-shaped structure has the U-shaped medial surface forming groove and the U-shaped lateral surface wrapping up this U-shaped medial surface, U-shaped medial surface and U-shaped lateral surface smooth connection form medicine-chest body, the upper surface of medicine-chest body is provided with liquid input port, and the neighbouring position of liquid input port is also provided with steam vent; The bottom of medicine-chest body is provided with liquid delivery port.The bottom design of this U-shaped medicine-chest has dividing plate, and liquid medicine flow position, left and right is reduced, and makes medicine-chest liquid left and right horizontal face when flying operation close consistent; And this medicine-chest is installed on fuselage centre bottom, make carried liquid near center-of-gravity position, the rocking of liquid when decreasing flight, makes flight more stable.Meanwhile, this medicine-chest body bottom design has impurity flame diversion trough and impurity storage location, and prevention liquid impurity blocks liquid delivery port and facilitates residue to discharge.
Description
Technical field
The utility model belongs to aircraft manufacture field, in IPC classification, belong to the large class of B64, is specifically related to a kind of U-shaped medicine-chest of spraying insecticide for the industrial grade electric unmanned helicopter of agriculture and forestry plant protection (plant protection) operation.
Background technology
Along with depopulated helicopter is in the applied research of every profession and trade, people all the more now depopulated helicopter are day by day remarkable in the effect of social production and life various aspects.Use modern new and high technology mechanical equipment, can not only increase work efficiency and quality, reduction operating cost, the risk of personnel's operation can also be reduced, the protection security of the lives and property.Wherein, agricultural depopulated helicopter is have a lot of advantages compared with conventional equipment for plant protection operation, and its operating efficiency is 8 times that prevent and treat most effective overhead atomizing cone operating efficiency in the equipment for plant protection of current ground.Agricultural depopulated helicopter adopts low volume, and can save the water of 90% and the agricultural chemicals of 50%, pesticide efficacy reaches more than 35%, and the consumption of fuel completing same working area is than field machine much less such as trac.s.In addition, agricultural depopulated helicopter aerial work does not affect by terrain environment, contacting of peasant and agricultural chemicals also can be made to drop to minimum, thus ensure the physical and mental health of peasant.Introducing the area, particularly double cropping of rice producing region of this mode of operation, agricultural depopulated helicopter is extensively subject to accreditation and the welcome of user.
General; for agriculture and forestry plant protection operation agricultural depopulated helicopter, mainly comprise flying platform (fixed-wing, single rotor, many rotors), GPS fly control, spraying mechanism three part, by ground remote control or GPS fly control; realize spraying operation, can spraying agent, seed, pulvis etc.
Wherein, the spraying mechanism of existing agricultural depopulated helicopter, generally for spraying insecticide, its medicine-chest used is common casing, use in-flight easily because aspect change causes liquid to rock in casing in reality, thus affect the normal flight of aircraft, even cause air crash time serious.
For this reason, one section of application number is the patent of invention of 201320580403.9, disclose a kind of plant protection depopulated helicopter safety and stability type medicine-chest, this plant protection depopulated helicopter medicine-chest is divided into output port, input port, induction opening and storage bin, described output port is connected with the lowermost end of storage bin, described input port is connected with storage bin top end face, described induction opening is at the top of storage bin, be connected with storage bin top end face, described storage bin bottom face is less than top end face, described storage bin is divided into, lower two parts, top is divided into square, the inside is provided with several transverse slat and riser, transverse slat and riser alternately form several vertical square groove mutually, the side of vertical square groove is connected with storage bin, the latter half in echelon.Above-mentioned patent adopts transverse slat and riser mutually alternately to form several vertical square groove, although this vertical slots structure to some extent solve liquid rock the fuselage that brings to helicopter cannot stable problem, its complex structure not easily realizes.
In addition, one section of application number is the utility model patent of 201320895629.8, discloses a kind of software spray tank, its by hanging hurdle outward, inlet plug, dress liquid bag, liquid outlet joint form; Described dress liquid bag is bag-shaped, and there is inlet plug its one end, and the other end has liquid outlet joint; The described outer hurdle that hangs is enclosed within the outside hanging of dress liquid bag in the bottom of unmanned plane; During use, be casing shape by filling liquid bag after inlet plug perfusion solution, liquid outlet joint to be connected with spray boom through liquid pump by adapter and to be arranged on agricultural unmanned plane bottom.When above-mentioned software spray tank is used for agricultural unmanned plane, inhaled flat liquid when liquid continuously outflows by barometric pressure effect medicine-chest not wavy, can increase the stability of unmanned plane to a certain extent, but it adopts flexible plastic manufacture, service life is limited; Meanwhile, when the liquid in medicine-chest continuously outflow and make its inhaled flat after, be in without being fixedly connected with state between medicine-chest with unmanned plane, thus medicine-chest still can be rocked, and then affect the stability in unmanned plane during flying.
Therefore, a kind of medicine-chest structure that can control the agricultural depopulated helicopter that liquid does not rock is provided to be a very necessary and eager technical barrier.
Utility model content
Therefore, for above-mentioned problem, the utility model provides a kind of U-shaped medicine-chest of agricultural depopulated helicopter, simplify and improve existing medicine-chest structure, under the prerequisite of not reducing medicine-chest service life, the liquid that can control inside medicine-chest does not rock, and avoids impacting the stable of aloft unmanned plane, thus solves the deficiency of prior art.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is, a kind of U-shaped medicine-chest of agricultural depopulated helicopter, comprise medicine-chest body, this medicine-chest body has a groove makes the U-shaped structure in its cross section, this U-shaped structure has the U-shaped medial surface forming groove and the U-shaped lateral surface wrapping up this U-shaped medial surface, and U-shaped medial surface and U-shaped lateral surface smooth connection form medicine-chest body; The upper surface of medicine-chest body is provided with liquid input port, and the neighbouring position of liquid input port is also provided with steam vent; The bottom of medicine-chest body is provided with liquid delivery port.U-shaped medicine-chest of the present utility model is located on unmanned plane, is generally the steadiness ensureing unmanned plane, medicine-chest body can be located at the fuselage centre bottom of unmanned plane; In addition, this U-shaped medicine-chest adopts the medicine-chest body of U-shaped structure, that is this medicine-chest body is divided into by groove the spatial accommodation that two, left and right stores liquid, and two, left and right store liquid spatial accommodation bottom mutually together with, like this, when unmanned plane during flying operation, liquid left and right horizontal face stored by the spatial accommodation of two, left and right close to consistent, thus ensures the stability of unmanned plane during flying.
Wherein, U-shaped medial surface and U-shaped lateral surface smooth connection form medicine-chest body, and medicine-chest body is with the symmetrical structure of the line of centers of groove; U-shaped medial surface comprises the interior diapire of the first madial wall, the second madial wall and smooth connection first madial wall and the second madial wall, first madial wall, the second madial wall and interior diapire are one-body molded, U-shaped lateral surface comprises the exterior bottom wall of the first lateral wall, the second lateral wall and smooth connection first lateral wall and the second lateral wall, and the first lateral wall, the second lateral wall and exterior bottom wall are one-body molded; By the spacing between the first madial wall and the first lateral wall (because medicine-chest body is bilateral symmetry, the spacing of spacing between first madial wall and the first lateral wall also namely between the second madial wall and the second lateral wall) be designated as d1, the spacing of interior diapire and exterior bottom wall is designated as d2, time so in order to ensure unmanned plane during flying operation, stored by two spatial accommodations in left and right, liquid left and right horizontal face is better close to consistent, is generally designed to d1>d2; Preferably, d1 >=2d2.Like this, the spatial accommodation of two, the left and right storage liquid of medicine-chest body is larger, and bottom is less together with space, thus make the flowing of medicine-chest body when flying not easily because of liquid cause double swerve too soon, thus about further ensure that medicine-chest body, liquid left and right horizontal face stored by two spatial accommodations is better close consistent.
Further, in order to ensure that the flowing of medicine-chest body when flying not easily because of liquid causes double swerve too soon further, the bottom of the inside of described medicine-chest body is provided with dividing plate, liquid medicine flow position, left and right is made to reduce further, and allow flight operation time medicine-chest liquid left and right horizontal face close to consistent, the fuselage avoiding liquid to rock bringing to helicopter cannot stable problem.This dividing plate can be set to the dividing plate that runs through the lower surface of medicine-chest body, also can be set to multiple dividing plate.
Further, be prevention liquid sediment or impurity blocking liquid delivery port, described liquid delivery port has a liquid and exports elbow, and it is L-type structure that this liquid exports elbow, not only conveniently sprays insecticide, and liquid sediment can be deposited in the bottom of medicine-chest body.
Further, conveniently liquid sediment or impurity are discharged easily, the bottom of described medicine-chest body extends an accretion district downwards, and as impurity storage location, prevention liquid impurity blocks liquid delivery port and facilitates residue to discharge.
Liquid sediment or impurity are discharged easily for further convenient, the bottom of medicine-chest body is provided with fluid cushion groove, and fluid cushion groove is obliquely installed to accretion district by liquid delivery port, for impurity water conservancy diversion.
Further, the bottom in described accretion district is sealed by detouchable screw, and when accretion discharged by needs, or when cleaning this accretion district, pulling down screw can discharge or clean.
Further, conveniently use, the both sides of the upper surface of medicine-chest body are provided with liquid input port.
Further, described liquid input port is also provided with the medicine chest cover for being sealed.
Further, the U-shaped lateral surface of described medicine-chest body is also provided with scale graduation, for measuring the number of liquid.This general medicine-chest body is translucent or transparent cabinet, such user by the highest plane of liquid of visual medicine-chest body and scale graduation know easily liquid number.
U-shaped medicine-chest of the present utility model, can be installed on fuselage centre bottom, makes carried liquid near center-of-gravity position, and the rocking of liquid when decreasing flight, makes flight more stable.Simultaneously, its spatial accommodation being designed to both sides is comparatively large and the throughput of bottom is narrower, there is dividing plate in its bottom design simultaneously, liquid medicine flow position, left and right is reduced, make medicine-chest liquid left and right horizontal face when flying operation close consistent, ensure that medicine-chest is not easy double swerve, and then stability when ensure that unmanned plane during flying.Meanwhile, this medicine-chest body bottom design has impurity flame diversion trough and impurity storage location, and prevention liquid impurity blocks liquid delivery port and facilitates residue to discharge.In addition, medicine-chest body the right and left is all designed with liquid input port, greatly facilitates the use of user.In addition, the lateral surface of medicine-chest body is also provided with scale graduation, facilitates user to observe the number of liquid.To sum up, the utility model structure is simple, be easy to realize, long service life, and during agricultural unmanned helicopter flight, the liquid that can control inside medicine-chest does not rock, and has good practicality.
Accompanying drawing explanation
Fig. 1 is the exploded drawings of U-shaped medicine-chest of the present utility model;
Fig. 2 is the block diagram one of U-shaped medicine-chest of the present utility model;
Fig. 3 is the block diagram two of U-shaped medicine-chest of the present utility model;
Fig. 4 is the front elevation of U-shaped medicine-chest of the present utility model;
Fig. 5 is the back view of U-shaped medicine-chest of the present utility model;
Fig. 6 is the left view of U-shaped medicine-chest of the present utility model;
Fig. 7 is the right elevation of U-shaped medicine-chest of the present utility model;
Fig. 8 is the upward view of U-shaped medicine-chest of the present utility model;
Fig. 9 is the birds-eye view of U-shaped medicine-chest of the present utility model.
Detailed description of the invention
Now with detailed description of the invention, the utility model is further illustrated by reference to the accompanying drawings.
As a concrete example, be the exploded drawings of the U-shaped medicine-chest of the agricultural depopulated helicopter of the present embodiment see Fig. 1-Fig. 9, Fig. 1, Fig. 2 and Fig. 3 is the block diagram of the different angles of U-shaped medicine-chest, and Fig. 4-Fig. 9 is six views of this U-shaped medicine-chest.The component names of each label representative in diagram is as follows: 301: medicine-chest body, 302: medicine chest cover, 303: steam vent, 304: liquid input port, 305: liquid delivery port, 306: sealing screw, 307: fixing medicine-chest screw, 308: fluid cushion groove, 309: accretion district, 310: scale graduation, 311: dividing plate; 3011:U type medial surface, 30111: the first madial walls, 30112: the second madial walls, 30113: interior diapire; 3012:U type lateral surface, 30121: the first lateral walls, 30122: the second lateral walls, 30123: exterior bottom wall.
See Fig. 1-Fig. 9, the U-shaped medicine-chest of the agricultural depopulated helicopter of the present embodiment, comprise medicine-chest body 301, this medicine-chest body 301 has a groove makes the U-shaped structure in its cross section, this U-shaped structure has the U-shaped medial surface 3011 forming groove and the U-shaped lateral surface 3012 wrapping up this U-shaped medial surface 3011, U-shaped medial surface 3011 and U-shaped lateral surface 3012 smooth connection form medicine-chest body 301, the side of the upper surface of medicine-chest body 301 or both sides are provided with liquid input port 304, and the neighbouring position of liquid input port 304 is also provided with steam vent 303; The bottom of medicine-chest body 301 is provided with liquid delivery port 305.
Wherein, see the sign in Fig. 6, U-shaped medial surface 3011 and U-shaped lateral surface 3012 smooth connection form medicine-chest body 301, and medicine-chest body 301 is with the symmetrical structure of the line of centers of groove; See the sign in Fig. 7, U-shaped medial surface 3011 comprises the interior diapire 30113 of the first madial wall 30111, second madial wall 30112 and smooth connection first madial wall 30111 and the second madial wall 30112, first madial wall 30111, second madial wall 30112 and interior diapire 30113 one-body molded, U-shaped lateral surface 3012 comprise exterior bottom wall 30123, first lateral wall 30121, second lateral wall 30122 of the first lateral wall 30121, second lateral wall 30122 and smooth connection first lateral wall 30121 and the second lateral wall 30122 and exterior bottom wall 30123 one-body molded; By the spacing between the first madial wall 30111 and the first lateral wall 30121 (because medicine-chest body is bilateral symmetry, the spacing of spacing between first madial wall 30111 and the first lateral wall 30121 also namely between the second madial wall 30112 and the second lateral wall 30122) be designated as d1, the spacing of interior diapire 30113 and exterior bottom wall 30123 is designated as d2, time so in order to ensure unmanned plane during flying operation, stored by two spatial accommodations in left and right, liquid left and right horizontal face is better close to consistent, is generally designed to d1>d2; Preferably, can be designed to d1 >=2d2, its effect is better.Like this, the spatial accommodation of two, the left and right storage liquid of medicine-chest body is larger, and bottom is less together with space, thus make the flowing of medicine-chest body when flying not easily because of liquid cause double swerve too soon, thus about further ensure that medicine-chest body, liquid left and right horizontal face stored by two spatial accommodations is better close consistent.
In addition, for ensureing the steadiness of medicine-chest body 301, when making, U-shaped lateral surface 3012 is one-body molded after wrapping up U-shaped medial surface 3011.
The bottom of the inside of medicine-chest body 301 is provided with dividing plate 311, and liquid medicine flow position, left and right is reduced, and allow flight operation time medicine-chest liquid left and right horizontal face close to consistent, the fuselage avoiding liquid to rock bringing to helicopter cannot stable problem.This dividing plate 311 can be set to the dividing plate 311 that runs through the lower surface of medicine-chest body 301, also can be set to multiple dividing plate 311.In the present embodiment, see Fig. 9, this dividing plate 311 is provided with two, is symmetricly set in the bottom portion of groove of medicine-chest body.
For prevention liquid sediment or impurity blocking liquid delivery port 305, liquid delivery port 305 has a liquid and exports elbow, and it is L-type structure that this liquid exports elbow, not only conveniently sprays insecticide, and liquid sediment can be deposited in the bottom of medicine-chest body 301.Conveniently liquid sediment or impurity are discharged easily, the bottom of medicine-chest body 301 extends an accretion district 309 downwards, and as impurity storage location, prevention liquid impurity blocks liquid delivery port 305 and facilitates residue to discharge.Liquid sediment or impurity are discharged easily for further convenient, the bottom of medicine-chest body 301 is provided with fluid cushion groove 308, and fluid cushion groove 308 is obliquely installed to accretion district 309 by liquid delivery port 305, for impurity water conservancy diversion.In addition, the bottom in accretion district 309 is sealed by detouchable sealing screw 306, seals screw 306 as impurity discharge orifice quick detach screw, when accretion discharged by needs, or when cleaning this accretion district 309, pulling down sealing screw 306 can discharge or clean.
In the present embodiment, the both sides of the upper surface of medicine-chest body 301 are provided with liquid input port 304.Liquid input port 304 is also provided with the medicine chest cover 302 for being sealed.Meanwhile, the U-shaped lateral surface 3012 of the medicine-chest body 301 of the present embodiment is also provided with scale graduation 310, for measuring the number of liquid.
The present embodiment adopts said structure, and the medicine chest cover 302 of this U-shaped medicine-chest is connected with liquid input port 304, and the liquid of liquid delivery port 305 exports elbow and is connected with the bottom of medicine-chest body, and sealing screw 306 is connected with the accretion district 309 of medicine-chest body bottom.Liquid input port 304 lays respectively at medicine-chest body the right and left top end face midway location, and steam vent 303 is positioned at medicine-chest body 301 the right and left top end face rear.The U-shaped bodies of this U-shaped medicine-chest profile, U-shaped bottom design has dividing plate 311, fluid cushion groove 308 and impurity storage location accretion district 309, is designed with containing mark chi 310 on the right side of casing.
In actual use, agricultural chemicals injects from the liquid input port of any one end on two tops about medicine-chest body (also can two ends inject) simultaneously, after liquid enters medicine-chest body, flows to the other end through U-shaped bottom half.After the liquid of medicine-chest body is filled it up with, rotary medicine case lid, makes it be tightened against on liquid input port, and when ensureing to fly, casing can not overflow casing with aspect situation of change prescribe medicine night.Fluid cushion groove makes density be greater than the impurity thing water conservancy diversion of liquid to impurity storage location, gives and ensures that liquid exports elbow and can not block.Steam vent is along with the minimizing of liquid, and the increase of the negative pressure of casing, air enters casing through admission port, gives and ensures that liquid exports elbow from liquid smoothly and normally exports.
Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (10)
1. the U-shaped medicine-chest of an agricultural depopulated helicopter, it is characterized in that: comprise medicine-chest body, this medicine-chest body has a groove makes the U-shaped structure in its cross section, this U-shaped structure has the U-shaped medial surface forming groove and the U-shaped lateral surface wrapping up this U-shaped medial surface, U-shaped medial surface and U-shaped lateral surface smooth connection form medicine-chest body, the upper surface of medicine-chest body is provided with liquid input port, and the neighbouring position of liquid input port is also provided with steam vent; The bottom of medicine-chest body is provided with liquid delivery port.
2. the U-shaped medicine-chest of agricultural depopulated helicopter according to claim 1, is characterized in that: described U-shaped medial surface and U-shaped lateral surface smooth connection form medicine-chest body, and medicine-chest body is with the symmetrical structure of the line of centers of groove; U-shaped medial surface comprises the interior diapire of the first madial wall, the second madial wall and smooth connection first madial wall and the second madial wall, first madial wall, the second madial wall and interior diapire are one-body molded, U-shaped lateral surface comprises the exterior bottom wall of the first lateral wall, the second lateral wall and smooth connection first lateral wall and the second lateral wall, and the first lateral wall, the second lateral wall and exterior bottom wall are one-body molded; Spacing between first madial wall and the first lateral wall is designated as d1, the spacing of interior diapire and exterior bottom wall is designated as d2, d1>d2.
3. the U-shaped medicine-chest of agricultural depopulated helicopter according to claim 2, is characterized in that: d1 >=2d2.
4. the U-shaped medicine-chest of the agricultural depopulated helicopter according to claim 1 or 2 or 3, is characterized in that: the bottom of the inside of described medicine-chest body is provided with dividing plate.
5. the U-shaped medicine-chest of the agricultural depopulated helicopter according to claim 1 or 2 or 3, is characterized in that: described liquid delivery port has a liquid and exports elbow, and it is L-type structure that this liquid exports elbow.
6. the U-shaped medicine-chest of the agricultural depopulated helicopter according to claim 1 or 2 or 3, is characterized in that: the bottom of described medicine-chest body extends an accretion district downwards, as impurity storage location.
7. the U-shaped medicine-chest of agricultural depopulated helicopter according to claim 6, is characterized in that: the bottom of described medicine-chest body is provided with fluid cushion groove, and fluid cushion groove is obliquely installed to accretion district by liquid delivery port, for impurity water conservancy diversion.
8. the U-shaped medicine-chest of agricultural depopulated helicopter according to claim 6, is characterized in that: the bottom in described accretion district is sealed by detouchable screw.
9. the U-shaped medicine-chest of the agricultural depopulated helicopter according to claim 1 or 2 or 3, is characterized in that: the both sides of the upper surface of described medicine-chest body are provided with liquid input port.
10. the U-shaped medicine-chest of the agricultural depopulated helicopter according to claim 1 or 2 or 3, is characterized in that: described liquid input port is also provided with medicine chest cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646324.8U CN204264455U (en) | 2014-11-03 | 2014-11-03 | A kind of U-shaped medicine-chest of agricultural depopulated helicopter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420646324.8U CN204264455U (en) | 2014-11-03 | 2014-11-03 | A kind of U-shaped medicine-chest of agricultural depopulated helicopter |
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| CN204264455U true CN204264455U (en) | 2015-04-15 |
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| CN201420646324.8U Withdrawn - After Issue CN204264455U (en) | 2014-11-03 | 2014-11-03 | A kind of U-shaped medicine-chest of agricultural depopulated helicopter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354865A (en) * | 2014-11-03 | 2015-02-18 | 深圳华越力合科技有限公司 | U-shaped pesticide box for agriculture unmanned helicopter |
| CN105235908A (en) * | 2015-11-13 | 2016-01-13 | 深圳市易飞行科技有限公司 | Medicine box for multi-rotor wing plant protection unmanned aerial vehicle |
| CN106892116A (en) * | 2017-02-27 | 2017-06-27 | 四川雷神空天科技有限公司 | For the flight instruments platform and its system and operational method of plant protection operation |
-
2014
- 2014-11-03 CN CN201420646324.8U patent/CN204264455U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354865A (en) * | 2014-11-03 | 2015-02-18 | 深圳华越力合科技有限公司 | U-shaped pesticide box for agriculture unmanned helicopter |
| WO2016070684A1 (en) * | 2014-11-03 | 2016-05-12 | 深圳高科新农技术有限公司 | U-shaped kit for unmanned farm helicopters |
| CN105235908A (en) * | 2015-11-13 | 2016-01-13 | 深圳市易飞行科技有限公司 | Medicine box for multi-rotor wing plant protection unmanned aerial vehicle |
| CN106892116A (en) * | 2017-02-27 | 2017-06-27 | 四川雷神空天科技有限公司 | For the flight instruments platform and its system and operational method of plant protection operation |
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Effective date of registration: 20160217 Address after: 518000 Guangdong city of Shenzhen province Nanshan District Ke Feng Lu No. 2 idiopathic information building A building 801-805 unit on the North Patentee after: SHENZHEN GKXN TECHNOLOGY CO., LTD. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Ke Feng Lu No. 2 idiopathic information building A building unit on the eighth floor of South 801-808 Patentee before: SHENZHEN WAYULINK TECHNOLOGY CO., LTD. |
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Granted publication date: 20150415 Effective date of abandoning: 20160622 |
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