CN210258834U - Retractable folds unmanned aerial vehicle - Google Patents
Retractable folds unmanned aerial vehicle Download PDFInfo
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- CN210258834U CN210258834U CN201920845719.3U CN201920845719U CN210258834U CN 210258834 U CN210258834 U CN 210258834U CN 201920845719 U CN201920845719 U CN 201920845719U CN 210258834 U CN210258834 U CN 210258834U
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- mechanical arm
- horn
- unmanned aerial
- aerial vehicle
- screw rod
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Abstract
The utility model provides a retractable folding unmanned aerial vehicle, which comprises a vehicle body, 4 groups of arms connected around the vehicle body, propellers connected at the tail ends of the arms, working motors connected with the propellers and undercarriage; the mechanical arm comprises a first mechanical arm, a second mechanical arm and a ball screw mechanism, the ball screw mechanism comprises a screw rod and a nut, the screw rod is arranged in the first mechanical arm, the nut is connected with the second mechanical arm, the screw rod is driven by the telescopic motor on the mechanical arm where the screw rod is located, a sliding block is arranged at the tail end of the first mechanical arm, a guide groove is axially arranged on the second mechanical arm, and the sliding block can slide along the guide groove. The utility model discloses a telescopic horn design makes unmanned aerial vehicle can freely stretch out and draw back the horn at the in-process of marcing, if meet narrow region at the flight in-process, rotate through controller control motor and contract second horn in first horn, extend rapidly again after safe through narrow region, guarantee unmanned aerial vehicle's stable flight.
Description
Technical Field
The utility model belongs to the technical field of unmanned aerial vehicle, a modified unmanned aerial vehicle structure is related to, concretely relates to folding unmanned aerial vehicle of retractable.
Background
Originally, unmanned aerial vehicles appeared for military wars, mainly for low-altitude reconnaissance, information collection, electronic interference and other combat missions. Along with the development of the related technology, the unmanned aerial vehicle gradually enters the sight of the public, and all walks of life make full use of the advantages of the unmanned aerial vehicle to carry out all kinds of operation. For example, police unmanned aerial vehicles are widely applied to various occasions, fire detection in fire scene, detection of surrounding environment when catching criminal suspects, and the like.
In prior art, unmanned aerial vehicle's volume is generally all fixed, and when the in-process of flying meets narrower space, unmanned aerial vehicle just can't pass through, and at this moment foldable unmanned aerial vehicle just can compensate this kind of problem. But current foldable unmanned aerial vehicle generally folds so that carry and deposit under the unsuitable condition, thereby can not fly because can't guarantee the screw at the horizontal direction after folding. For example, chinese utility model patent with publication number CN207843299U provides a folding rotor of police unmanned aerial vehicle, and its main objective makes the working face of screw be the horizontality all the time, but the folding mode in this patent can not change the unmanned aerial vehicle volume, just also can not make unmanned aerial vehicle pass through narrow and small space.
Disclosure of Invention
In order to solve the problem, the utility model provides a folding unmanned aerial vehicle of retractable, it can enough fly in narrow and small space, makes the volume diminish conveniently carry after can folding again.
In order to achieve the above object, the utility model provides a following technical scheme:
a retractable folding unmanned aerial vehicle comprises a machine body, 4 groups of machine arms uniformly connected to the periphery of the machine body, propellers connected to the tail ends of the machine arms, working motors connected with the propellers and undercarriage; the mechanical arm comprises a first mechanical arm, a second mechanical arm and a ball screw mechanism, the ball screw mechanism comprises a screw and a nut, the screw is arranged in the first mechanical arm, the nut is connected with the second mechanical arm, the screw is driven by a telescopic motor on the mechanical arm where the screw is located, a sliding block is arranged at the tail end of the first mechanical arm, a guide groove is axially formed in the second mechanical arm, and the sliding block can slide along the guide groove.
Further, a roller is arranged in the sliding block and can roll in the guide groove.
Furthermore, the telescopic motor is connected between the machine body and the machine arm and is connected with the machine arm through a supporting sleeve.
Furthermore, a coupler is arranged in the support sleeve and connects the telescopic motor with the screw rod.
Further, the horn is made of plastic.
Further, the horn is cylindrical.
Further, the length of the second horn is greater than that of the first horn.
Further, the diameter of the second machine arm is smaller than that of the first machine arm.
Furthermore, each propeller is connected with a working motor.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:
1. the utility model discloses a telescopic horn design makes unmanned aerial vehicle can freely stretch out and draw back the horn at the in-process of marcing, if meet narrow region at the flight in-process, rotate through controller control motor and contract second horn in first horn, extend rapidly again after safe through narrow region, guarantee unmanned aerial vehicle's stable flight.
2. The utility model discloses utilize ball screw mechanism and step motor to provide power and stable linear motion's condition for the automation of horn is flexible, and slider and guide way further ensure that the second horn can follow the horizontal direction and stabilize flexible, make the screw can not receive the flexible influence of arm to can reduce the unmanned aerial vehicle volume, safely pass through narrow region.
3. The utility model discloses in every rotor all be equipped with the motor alone, can realize turning to through the different rotational speed of giving both sides motor.
Drawings
Fig. 1 is the utility model provides a folding unmanned aerial vehicle's of retractable whole top view.
Fig. 2 is an overall plan view of the unmanned aerial vehicle shown in fig. 1 after the arm is retracted.
Fig. 3 is a schematic structural diagram of a set of arms.
Fig. 4 is a schematic cross-sectional view of a set of arms.
Fig. 5 is a partial cross-sectional view of a slider and a second horn in the horn.
Description of reference numerals:
1-machine body, 201-first machine arm, 202-second machine arm, 3-propeller, 401-stepping motor, 402-motor, 5-support sleeve, 7-screw, 8-nut, 9-slide block, 901-roller, 10-guide groove and 11-coupler.
Detailed Description
The technical solutions provided by the present invention will be described in detail with reference to specific embodiments, and it should be understood that the following specific embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention.
As shown in fig. 1-2, the utility model provides a pair of folding unmanned aerial vehicle of retractable, including organism 1, 4 horn 2 of group, 4 screw 3, 8 motors 4, 4 support sleeve 5 and undercarriage (conventional structure, not shown in the figure). Wherein organism 1 is unmanned aerial vehicle's essential part, including shell and setting up power, controller, transmitter, camera etc. in the shell, the structure in the unmanned aerial vehicle organism is comparatively conventional, and its concrete part and applicable model etc. are in the utility model discloses in no longer describe repeatedly. The top view of the machine body 1 is square, and 4 stepping motors 401 (a planetary reduction motor ZGX22RW is selected) are symmetrically distributed on the periphery of the machine body; the stepping motor 401 is fixed with 4 sets of arms 2 with support sleeves 5. The arm 2 is a telescopic arm, and as shown in fig. 3, the specific structure thereof includes a first arm 201 and a second arm 202, and the arm 2 contains a ball screw mechanism, which can convert the rotary motion of the stepping motor 401 into linear motion. As shown in fig. 4, the ball screw mechanism mainly includes: the screw 7, the nut 8, and other components such as the nut seat, the roller, and the reverser are conventional components, and are not described in detail in the present invention, wherein the screw 7 is in the first horn 201, and the nut 8 is connected with the second horn 202. In this example, since the screw is thick, the second horn 202 should be hollow, and when it is necessary to retract the second horn 202, the screw 7 can be driven into the second horn 202 with the operation of the motor. A motor 402 (selected from Xinxida 2212-KV1000) is arranged at the tail end of the second horn 202; each motor 402 is used for driving the connected propeller 3; screw 3 is unmanned aerial vehicle's lift provides the device, installs on motor 402. The utility model discloses in every rotor all be equipped with the motor alone, can realize turning to through the different rotational speed of giving both sides motor.
Preferably, as shown in fig. 5, the first boom 201 has a slide block 9 inside the end, the slide block 9 preferably has a roller 901 capable of rolling inside, the second boom 202 has a guide groove 10 arranged along the axial direction of the boom, and the slide block 9 slides along the guide groove 10 to ensure that the second boom 202 does not rotate during the extension and retraction process, so that the propeller 3 is always kept in a horizontal state. The roller rolls in the guide groove, and the friction force is small.
Preferably, horn 2 is cylindrically be favorable to the slip and be plastics and make, can alleviate unmanned aerial vehicle weight, and the diameter of second horn 202 will be less than first horn 201 and second horn 202 will be longer than first horn 201, guarantees that the shrink back screw 3 can normally rotate.
Preferably, the support sleeve 5 contains a coupling 11 inside, which connects the stepping motor 401 and the screw 7 together to drive the screw 7 to rotate, and the coupling 11 is internally provided with angular contact ball bearings to bear longitudinal and transverse pressure.
When meeting a narrow space, the camera identifies the size of the space and transmits the space to the controller, the controller controls the stepping motor 401 to rotate to drive the second arm 202 to contract stably, so that the unmanned aerial vehicle can smoothly pass through the narrow area,
the working principle is as follows:
when the power was closed, horn 2 was in the contraction state, opened the power during the use, and the controller begins work, and control step motor 401 rotates, extends second horn 202, and the back that finishes extends, motor 402 drive screw 3 work, and unmanned aerial vehicle begins the flight. When the flight space is sufficient, the second horn 202 is fully extended for flight. When the narrow area is detected by the camera in the flying process, information is transmitted to the controller, the controller controls the stepping motor 401 to rotate reversely, the second machine arm 202 is retracted, the second machine arm 202 contracts stably, the rotation of the propeller 3 is not influenced, and therefore the operation is carried out through the narrow space safely and stably. And can stretch out second horn 202 after passing through rapidly, guarantee unmanned aerial vehicle stability.
It should be noted that the telescopic control can also be controlled manually by remote control and the like, and a complete and realizable technical scheme can be formed without improving software: can stretch out and draw back folding unmanned aerial vehicle promptly, make a video recording and detect and automatic flexible content that improves, not necessary technical characteristic.
Specifically, the automatic retraction process is completed by a stepping motor 401 and a ball screw mechanism, the stepping motor 401 and a screw 7 are fixed together by a coupler 11 and an angular contact ball bearing, the stepping motor 401 drives the screw 7 to rotate together, the screw 7 serves as a driving body, a nut 8 can be converted into linear motion along with the rotation angle of the screw 7 according to a lead of a corresponding specification, a second machine arm 202 and the nut 8 are fixed together, stable linear motion can be achieved, a sliding block 9 arranged inside the tail end of a first machine arm 201 can reduce friction force, a guide groove in the second machine arm plays a role in guiding extension and retraction, the sliding block 9 slides along a guide groove 10 in the second machine arm 202, and the propeller 3 is guaranteed to be kept horizontal in the extension and retraction process.
When not in use, the power supply is cut off, and the second arm 202 preferably contracts automatically, so that the unmanned aerial vehicle can be carried and stored conveniently.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a folding unmanned aerial vehicle of retractable, includes organism (1), evenly connects 4 horn (2) of group around the organism, connects at screw (3) at each horn end, the work motor and the undercarriage of being connected with each screw (3), its characterized in that: the device also comprises 4 telescopic motors connected with each machine arm; the mechanical arm (2) comprises a first mechanical arm (201), a second mechanical arm (202) and a ball screw mechanism, the ball screw mechanism comprises a screw rod (7) and a nut (8), the screw rod (7) is arranged in the first mechanical arm (201), the nut (8) is connected with the second mechanical arm (202), the screw rod (7) is driven by a telescopic motor on the mechanical arm where the screw rod is located, a sliding block (9) is arranged at the tail end of the first mechanical arm (201), a guide groove (10) is formed in the second mechanical arm (202) along the axial direction, and the sliding block (9) can slide along the guide groove (10).
2. The retractable folding drone of claim 1, characterized in that: a roller (901) is arranged in the sliding block (9), and the roller (901) can roll in the guide groove (10).
3. The retractable folding drone of claim 1, characterized in that: the telescopic motor is connected between the machine body (1) and the machine arm (2) and is connected with the machine arm (2) through a supporting sleeve (5).
4. The retractable folding drone of claim 3, characterized in that: the support sleeve (5) is internally provided with a coupler (11), and the coupler (11) connects the telescopic motor with the screw (7).
5. The retractable folding drone of claim 1, characterized in that: the horn (2) is made of plastic.
6. The retractable folding drone of claim 1, characterized in that: the machine arms (2) are all cylindrical.
7. The retractable folding drone of claim 1, characterized in that: the length of the second mechanical arm (202) is larger than that of the first mechanical arm (201).
8. The retractable folding drone of claim 7, characterized in that: the diameter of the second mechanical arm (202) is smaller than that of the first mechanical arm (201).
9. The retractable folding drone of claim 1, characterized in that: each propeller (3) is connected with a working motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845719.3U CN210258834U (en) | 2019-06-06 | 2019-06-06 | Retractable folds unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845719.3U CN210258834U (en) | 2019-06-06 | 2019-06-06 | Retractable folds unmanned aerial vehicle |
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| Publication Number | Publication Date |
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| CN210258834U true CN210258834U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920845719.3U Active CN210258834U (en) | 2019-06-06 | 2019-06-06 | Retractable folds unmanned aerial vehicle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022853A (en) * | 2021-03-27 | 2021-06-25 | 孙鹏 | Mobile 5G communication signal test platform and use method thereof |
| CN113459741A (en) * | 2021-07-21 | 2021-10-01 | 广东汇天航空航天科技有限公司 | Screw linking arm and car |
| CN113830305A (en) * | 2021-09-30 | 2021-12-24 | 山东中图软件技术有限公司 | Unmanned aerial vehicle uses geographic information collection system |
| CN113928535A (en) * | 2021-10-08 | 2022-01-14 | 中科信同科技集团有限公司 | Folding arm of unmanned aerial vehicle and unmanned aerial vehicle |
| CN114537641A (en) * | 2022-02-28 | 2022-05-27 | 重庆交通大学 | Collapsible folding unmanned aerial vehicle rotor structure |
-
2019
- 2019-06-06 CN CN201920845719.3U patent/CN210258834U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022853A (en) * | 2021-03-27 | 2021-06-25 | 孙鹏 | Mobile 5G communication signal test platform and use method thereof |
| CN113459741A (en) * | 2021-07-21 | 2021-10-01 | 广东汇天航空航天科技有限公司 | Screw linking arm and car |
| CN113830305A (en) * | 2021-09-30 | 2021-12-24 | 山东中图软件技术有限公司 | Unmanned aerial vehicle uses geographic information collection system |
| CN113830305B (en) * | 2021-09-30 | 2023-12-12 | 山东中图软件技术有限公司 | Unmanned aerial vehicle uses geographic information collection system |
| CN113928535A (en) * | 2021-10-08 | 2022-01-14 | 中科信同科技集团有限公司 | Folding arm of unmanned aerial vehicle and unmanned aerial vehicle |
| CN114537641A (en) * | 2022-02-28 | 2022-05-27 | 重庆交通大学 | Collapsible folding unmanned aerial vehicle rotor structure |
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