Pneumatic arm folding device suitable for amphibious unmanned aerial vehicle

By using a pneumatic arm folding device, which utilizes an electric cylinder and a hydraulic cylinder to drive the folding mechanism, the problems of excessive drone size and damage during transportation have been solved, thus improving portability and safety.

CN223803836UActive Publication Date: 2026-01-16QICHAO TECHNOLOGY (HARBIN) CO LTD
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Patent Information

Application Number
CN202520549331.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-01-16
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

The pneumatic arm design of amphibious drones results in excessively large drones, affecting portability and making them prone to damage during transportation.

Method used

The pneumatic arm folding device includes a folding mechanism driven by an electric cylinder and a hydraulic cylinder, which achieves the folding and disassembly of the arm through the cooperation of hinges and slides.

Benefits of technology

This effectively reduces the size of the drone, making it easier to carry and transport, lowering the risk of arm damage, and ensuring normal drone operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of amphibious unmanned aerial vehicles, in particular to a pneumatic arm folding device suitable for an amphibious unmanned aerial vehicle, which comprises an unmanned aerial vehicle main body, the unmanned aerial vehicle main body comprises a top shell, the top shell is fixedly mounted at the top end of the unmanned aerial vehicle main body, and first rectangular grooves are formed in the side walls of the two sides of the top shell; and first hinge shafts are installed on the side walls of the two ends in the first rectangular groove, an unmanned aerial vehicle arm body is rotationally installed on the outer walls of the first hinge shafts, a mounting rod is installed at one end of the unmanned aerial vehicle arm body, and a mounting ring is arranged at the end, away from the unmanned aerial vehicle arm body, of the mounting rod. Firstly, an electric cylinder is started to drive a mounting block to slide in a sliding groove through a sliding block, so that the electric cylinder stretches out and draws back to drive an unmanned aerial vehicle arm body to rotate through a first hinge shaft, an operator can fold the unmanned aerial vehicle arm body conveniently, and it is avoided that an unmanned aerial vehicle is too large in size; therefore, the portability of the unmanned aerial vehicle is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of amphibious unmanned aerial vehicle (UAV) technology, and in particular to a pneumatic arm folding device suitable for amphibious UAVs. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own program control devices. They are high-tech products that integrate aerodynamics, materials mechanics, automatic control technology, and software technology. Amphibious UAVs are a type of UAV that combines aerial and underwater operation capabilities, and can seamlessly switch between land, surface, and underwater operations. These UAVs typically have the characteristics of long endurance and large payload, and can perform missions in various environments.

[0003] Most amphibious drone pneumatic arms adopt a fixed arm design. As the power output mechanism of the drone, the arm often needs to be extended around the body, which makes the drone too large, thus reducing its portability. At the same time, during transportation, its large size makes it very easy to collide with other objects, resulting in damage to the arm and affecting the normal operation of the drone. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that the pneumatic arms of amphibious drones mentioned above or in the prior art mostly adopt a fixed arm design, and the arms, as the power output mechanism of the drone, often need to be deployed around the body, this makes the drone too large, thus reducing its portability. At the same time, during transportation, the excessive size makes it very easy for it to collide with other objects, resulting in damage to the arms and affecting the normal operation of the drone. Therefore, this utility model is proposed.

[0006] Therefore, the purpose of this invention is to provide a pneumatic arm folding device suitable for amphibious unmanned aerial vehicles.

[0007] To solve the above technical problems, the utility model provides technical scheme as follows: A kind of aerodynamic arm folding device suitable for amphibious unmanned aerial vehicle, including unmanned aerial vehicle body main body, it includes top shell, the top shell fixed mounting is at the top end of unmanned aerial vehicle body main body, the side wall of the both sides of top shell is all set with first rectangular groove, and the side wall of both ends inside first rectangular groove is all installed with first hinged axle, unmanned aerial vehicle arm main body is rotatably installed on the outer wall of first hinged axle, and the one end of unmanned aerial vehicle arm main body is installed with mounting rod, the one end of mounting rod away from unmanned aerial vehicle arm main body is provided with mounting ring, and the inside of mounting ring is fixedly installed with machine shaft main body, the top end of machine shaft main body is installed with fixed seat, and the both ends of fixed seat are provided with propeller, the side wall of both sides of unmanned aerial vehicle body main body is all set with second rectangular groove;

[0008] Aerodynamic folding mechanism, it includes first hinged seat and sliding slot, the bottom end in the inside of second rectangular groove is fixedly installed with first hinged seat, electric cylinder is hinged in the inside of first hinged seat;

[0009] Mounting and dismounting mechanism, it includes rectangular bin and welding seat, rectangular bin is set in the inside of mounting rod, the side wall of one end in the inside of rectangular bin is installed with hydraulic cylinder, and the one end of hydraulic cylinder is installed with horizontal plate, the outer wall of horizontal plate is all sleeved with sliding sleeve.

[0010] As a preferred scheme of the utility model of a kind of aerodynamic arm folding device suitable for amphibious unmanned aerial vehicle, wherein: the junction of fixed seat and propeller is fixedly installed with fixed nail.

[0011] By the design of fixed nail, the fixed seat and propeller are fixed more firmly by fixed nail.

[0012] As a preferred scheme of the utility model of a kind of aerodynamic arm folding device suitable for amphibious unmanned aerial vehicle, wherein: the side wall of mounting ring is set with mounting groove, and the top end and bottom end in the inside of mounting groove are all set with limiting slot.

[0013] By the inner wall of limiting slot and mounting groove being all installed with anti-skid line, the installation effect of limiting slot and mounting groove is better.

[0014] As a preferred scheme of the utility model of a kind of aerodynamic arm folding device suitable for amphibious unmanned aerial vehicle, wherein: the side wall of one end in the inside of rectangular bin is all installed with welding seat, and the inside of welding seat is all set with second through hole, the inside of second through hole is provided with the limiting rod that passes through rectangular bin, and limiting rod and limiting slot are engaged, the side wall of limiting rod is installed with fixed rod, and the side wall of sliding sleeve is fixedly connected with the one end of fixed rod away from limiting rod.

[0015] Through the above technical scheme, the limiting rod can slide in the second through hole through the cooperation of the second through hole and the limiting rod.

[0016] As a preferred scheme of the utility model, the utility model discloses a kind of aerodynamic machine arm folding devices suitable for amphibious unmanned aerial vehicle, wherein: the side wall of one side inside rectangular warehouse is fixedly installed with welding rod, and welding rod outer wall is hinged with hinged rod, and the end of hinged rod away from welding rod is hinged with the outer wall of sliding sleeve.

[0017] Through the above technical scheme, the limiting rod can slide in the second through hole through the cooperation of the second through hole and the limiting rod.

[0018] As a preferred scheme of the utility model, the utility model discloses a kind of aerodynamic machine arm folding devices suitable for amphibious unmanned aerial vehicle, wherein: the inside of sliding sleeve is provided with first through hole, and first through hole is mutually matched with horizontal plate.

[0019] Through the above technical scheme, the limiting rod can slide in the second through hole through the cooperation of the second through hole and the limiting rod.

[0020] As a preferred scheme of the utility model, the utility model discloses a kind of aerodynamic machine arm folding devices suitable for amphibious unmanned aerial vehicle, wherein: the side wall of unmanned aerial vehicle arm main part is provided with sliding groove, and sliding groove is provided with sliding block in its inside, and the side wall of sliding block is installed with mounting block.

[0021] Through the above technical scheme, the limiting rod can slide in the second through hole through the cooperation of the second through hole and the limiting rod.

[0022] As a preferred scheme of the utility model, the utility model discloses a kind of aerodynamic machine arm folding devices suitable for amphibious unmanned aerial vehicle, wherein: the side wall of mounting block is fixedly installed with second hinged seat, and second hinged seat is hinged with electric cylinder, and second hinged seat and mounting block are welded integrated structure.

[0023] Through the above technical scheme, the limiting rod can slide in the second through hole through the cooperation of the second through hole and the limiting rod.

[0024] The utility model discloses a kind of aerodynamic machine arm folding devices suitable for amphibious unmanned aerial vehicle, which has the following beneficial effects:

[0025] The utility model discloses first through the extension of electric cylinder, and through electric cylinder extension to pull the second hinged seat, and through the second hinged seat and electric cylinder are hinged, and through the mutual cooperation of the sliding slot and the sliding block, make electric cylinder start to drive the mounting block to slide in the inside sliding slot, conveniently make electric cylinder extension to drive unmanned aerial vehicle arm main part to rotate through the first hinged axle, thereby conveniently operating personnel to the unmanned aerial vehicle arm main part is folded, avoids the volume of unmanned aerial vehicle, thereby leading to the portability of unmanned aerial vehicle to drop.

[0026] The utility model discloses first through the extension of hydraulic cylinder, and through hydraulic cylinder extension to drive the horizontal plate to slide, and through the first through -hole and horizontal plate intercoordination, and through the hinged link respectively with the welding pole and sliding sleeve are hinged, make horizontal plate extension slide to drive the welding pole rotation, and drive sliding sleeve to slide on the outer wall of horizontal plate, conveniently make sliding sleeve slide to drive fixed rod and limit rod to slide in the inside second through -hole, thereby through limit rod and with limit slot interlock, thereby conveniently operating personnel to the installation ring and machine axle main part are dismantled, thereby conveniently to the unmanned aerial vehicle body main part is folded and is stored and transports. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to make the technical scheme of the embodiments of the utility model more clearly, the following will briefly introduce the drawing needed to be used in the embodiment description, obviously, the drawing in the following description only is some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings. Wherein:

[0028] Figure 1 It is a main view structural schematic drawing of a kind of suitable for amphibious unmanned aerial vehicle's pneumatic arm folding device;

[0029] Figure 2 It is a Figure 1 It is the enlarged structural schematic drawing of place A in the middle;

[0030] Figure 3 It is the structural schematic drawing of the pneumatic folding mechanism of a kind of suitable for amphibious unmanned aerial vehicle's pneumatic arm folding device;

[0031] Figure 4 It is the internal structure schematic drawing of a kind of suitable for amphibious unmanned aerial vehicle's pneumatic arm folding device rectangular store;

[0032] Figure 5 It is the folding structure schematic drawing of a kind of suitable for amphibious unmanned aerial vehicle's pneumatic arm folding device.

[0033] In the drawing, the component list represented by each sign is as follows:

[0034] 1. The unmanned aerial vehicle body main body; 101, top cover; 102, first rectangular groove; 103, first hinge shaft; 104, unmanned aerial vehicle arm main body; 105, mounting rod; 106, mounting ring; 1061, mounting groove; 1062, limiting groove; 107, axle main body; 108, fixed seat; 109, fixed nail; 1010, propeller; 1011, second rectangular groove;

[0035] 2. The pneumatic folding mechanism; 201, first hinge seat; 202, electric cylinder; 203, sliding groove; 204, sliding block; 205, mounting block; 206, second hinge seat;

[0036] 3. The mounting and dismounting mechanism; 301, rectangular bin; 302, hydraulic cylinder; 303, horizontal plate; 304, sliding sleeve; 305, first through hole; 306, fixed rod; 307, welding seat; 3071, second through hole; 308, limiting rod; 309, welding rod; 3010, hinge rod. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0038] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0039] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0040] Embodiment one: refer to Figures 1-5For the first embodiment of the utility model, this embodiment provides a kind of aerodynamic arm folding device suitable for amphibious unmanned aerial vehicle, can realize amphibious unmanned aerial vehicle aerodynamic arm, mostly adopt the design of fixed arm, arm as unmanned aerial vehicle power output mechanism, often need to be unfolded around the body, this makes unmanned aerial vehicle volume too large, thereby leading to the portability of unmanned aerial vehicle decline, while in the process of transportation, due to the volume too large, it is prone to collision with other objects, thereby leading to the damage of arm, affect the normal operation of unmanned aerial vehicle Problem, including unmanned aerial vehicle body main body 1, it includes top shell 101, top shell 101 is fixedly installed at the top of unmanned aerial vehicle body main body 1, the side wall of the both sides of top shell 101 is provided with first rectangular groove 102, and the side wall of both ends in first rectangular groove 102 is installed with first hinged shaft 103, unmanned aerial vehicle arm main body 104 is rotatably installed on the outer wall of first hinged shaft 103, and one end of unmanned aerial vehicle arm main body 104 is installed with mounting rod 105, mounting ring 106 is arranged at the end of mounting rod 105 away from unmanned aerial vehicle arm main body 104, and machine shaft main body 107 is fixedly installed in the inside of mounting ring 106, fixed seat 108 is installed at the top of machine shaft main body 107, and screw 1010 is arranged at the both ends of fixed seat 108, the side wall of both sides of unmanned aerial vehicle body main body 1 is provided with second rectangular groove 1011.

[0041] Fixed nail 109 is fixedly installed at the connecting portion of fixed seat 108 and screw 1010, the fixed seat 108 and screw 1010 are made more firm by the design of fixed nail 109.

[0042] Limiting groove 1062 is formed in the top end and bottom end in the inside of mounting groove 1061 of the side wall of mounting ring 106, anti-skid lines are installed on the inner wall of limiting groove 1062 and mounting groove 1061, so that the installation effect of limiting groove 1062 and mounting groove 1061 is better.

[0043] The aerodynamic folding mechanism 2 includes first hinged seat 201 and sliding groove 203, first hinged seat 201 is fixedly installed at the bottom end in the inside of second rectangular groove 1011, and electric cylinder 202 is hinged in the inside of first hinged seat 201.

[0044] The side wall of unmanned aerial vehicle arm main body 104 is provided with sliding groove 203, and sliding block 204 is arranged in the inside of sliding groove 203, mounting block 205 is installed on the side wall of sliding block 204, and second hinged seat 206 is fixedly installed on the side wall of mounting block 205, second hinged seat 206 is hinged with electric cylinder 202, through the mutual cooperation of sliding groove 203 and sliding block 204, mounting block 205 drives sliding block 204 to slide in the inside of sliding groove 203.

[0045] Specific working principle is, when need to fold the pneumatic machine arm, first through the start electric cylinder 202 extension, and through the electric cylinder 202 extension to pull the second articulated seat 206, and through the second articulated seat 206 with the one end of electric cylinder 202 articulated, and through the mutual cooperation of sliding groove 203 and sliding block 204, make electric cylinder 202 start to drive installation block 205 through sliding block 204 inside sliding groove 203, facilitate the electric cylinder 202 extension to drive unmanned aerial vehicle arm body 104 through the first articulated shaft 103 rotation, so as to facilitate the operator to fold unmanned aerial vehicle arm body 104, avoid the volume of unmanned aerial vehicle is too large, thereby leading to the portability of unmanned aerial vehicle decline.

[0046] Embodiment two: refer to Figures 1-5 , the first embodiment of the utility model, the embodiment provides a kind of pneumatic machine arm folding device suitable for amphibious unmanned aerial vehicle, can realize amphibious unmanned aerial vehicle pneumatic machine arm, mostly adopt fixed type machine arm design, machine arm as unmanned aerial vehicle power output mechanism, often need to be unfolded around the body, this makes the volume of unmanned aerial vehicle is too large, thereby leading to the portability of unmanned aerial vehicle decline, while in the process of transportation, due to the volume is too large to cause it to collide with other objects, thereby leading to the damage of machine arm, affect the normal operation of unmanned aerial vehicle problem, installation and removal mechanism 3, it includes rectangular bin 301 and welding seat 307, rectangular bin 301 is set in the inside of mounting rod 105, the side wall of one end in rectangular bin 301 is equipped with hydraulic cylinder 302, and the one end of hydraulic cylinder 302 is equipped with horizontal plate 303, the outer wall of horizontal plate 303 is all equipped with sliding sleeve 304.

[0047] The side wall of one end in rectangular bin 301 is all equipped with welding seat 307, and the second through hole 3071 is formed in the inside of welding seat 307, the limiting rod 308 that passes through rectangular bin 301 is arranged in the inside of second through hole 3071, and the limiting rod 308 is engaged with limiting groove 1062, the side wall of limiting rod 308 is equipped with fixed rod 306, and the side wall of sliding sleeve 304 is fixedly connected with the one end of fixed rod 306 away from limiting rod 308, by the cooperation of second through hole 3071 and limiting rod 308, the limiting rod 308 can slide in the inside of second through hole 3071.

[0048] The side wall of one side in rectangular bin 301 is fixedly equipped with welding rod 309, and the outer wall of welding rod 309 is articulated with articulated rod 3010, the outer wall of sliding sleeve 304 is articulated with the one end of articulated rod 3010 away from welding rod 309, the first through hole 305 is formed in the inside of sliding sleeve 304, and the first through hole 305 is matched with horizontal plate 303, by the articulation of articulated rod 3010 with sliding sleeve 304 and welding rod 309 respectively, so as to make horizontal plate 303 slide to drive articulated rod 3010 to rotate.

[0049] Specific working principle is, first through the start of hydraulic cylinder 302 extension and retraction, and through the hydraulic cylinder 302 extension and retraction to drive the horizontal plate 303 sliding, and through the first through hole 305 and horizontal plate 303 each other cooperation, and through the hinged rod 3010 respectively with the welding rod 309 and sliding sleeve 304 hinge, make horizontal plate 303 extension and retraction sliding to drive the welding rod 309 rotation, and drive sliding sleeve 304 in the outer wall of horizontal plate 303 sliding, convenient for sliding sleeve 304 sliding to drive the fixed rod 306 and limiting rod 308 in the inside of the second through hole 3071 sliding, thereby through the limiting rod 308 and with the limiting groove 1062 card, so as to facilitate the operator to install ring 106 and the main shaft body 107 disassembly, so as to facilitate the folding of the unmanned aerial vehicle body main body 1 and storage and transportation.

[0050] The above description of disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pneumatic arm folding device suitable for amphibious unmanned aerial vehicles, characterized in that: The utility model relates to a kind of unmanned aerial vehicle body, including, Unmanned aerial vehicle body (1), it includes top shell (101), the top shell (101) fixed mounting is installed at the top end of unmanned aerial vehicle body (1), the side wall of the top shell (101) both sides is equipped with first rectangular groove (102), and the side wall of first rectangular groove (102) inside both ends is installed with first hinged shaft (103), the outer wall of first hinged shaft (103) is rotatably installed with unmanned aerial vehicle arm body (104), and one end of unmanned aerial vehicle arm body (104) is installed with mounting rod (105), the end of mounting rod (105) away from unmanned aerial vehicle arm body (104) is provided with mounting ring (106), and the inside of mounting ring (106) is fixedly installed with machine shaft body (107), the top end of machine shaft body (107) is installed with fixed seat (108), and the both ends of fixed seat (108) are provided with propeller (1010), the side wall of the both sides of unmanned aerial vehicle body (1) is equipped with second rectangular groove (1011); Pneumatic folding mechanism (2), it includes first hinged seat (201) and sliding groove (203), the first hinged seat (201) fixed mounting is installed at the bottom end inside second rectangular groove (1011), the inside of first hinged seat (201) is hinged with electric cylinder (202); Mounting and dismounting mechanism (3), it includes rectangular bin (301) and welding seat (307), the inside of mounting rod (105) is equipped with rectangular bin (301), the side wall of one end inside rectangular bin (301) is installed with hydraulic cylinder (302), and one end of hydraulic cylinder (302) is installed with horizontal plate (303), the outer wall of horizontal plate (303) is all set with sliding sleeve (304).

2. The folding mechanism of claim 1, wherein: The connecting place of fixed seat (108) and propeller (1010) is fixedly installed with fixed nail (109).

3. The folding mechanism of claim 1, wherein: The side wall of mounting ring (106) is equipped with mounting groove (1061), and the top end and bottom end inside mounting groove (1061) are equipped with limiting groove (1062).

4. The folding mechanism of claim 1, wherein: The side wall of one end inside rectangular bin (301) is all installed with welding seat (307), and the inside of welding seat (307) is all equipped with second through-hole (3071), the inside of second through-hole (3071) is provided with limiting rod (308) that passes through rectangular bin (301), and limiting rod (308) and limiting groove (1062) are engaged, the side wall of limiting rod (308) is installed with fixed rod (306), and the end of fixed rod (306) away from limiting rod (308) is fixedly connected with the side wall of sliding sleeve (304).

5. The folding mechanism of claim 1, wherein: The side wall of one side inside rectangular bin (301) is all fixedly installed with welding rod (309), and the outer wall of welding rod (309) is hinged with hinged rod (3010), the end of hinged rod (3010) away from welding rod (309) is hinged with the outer wall of sliding sleeve (304).

6. The folding mechanism of claim 1, wherein: The inside of sliding sleeve (304) is equipped with first through-hole (305), and first through-hole (305) and horizontal plate (303) are matched with each other.

7. The folding mechanism of claim 1, wherein: The side wall of the unmanned plane arm body (104) is provided with a sliding groove (203), and the inside of the sliding groove (203) is provided with a sliding block (204).

8. The folding mechanism of claim 7, wherein: The side wall of the mounting block (205) is fixedly provided with a second hinge seat (206), the second hinge seat (206) is hinged with the electric cylinder (202), and the second hinge seat (206) and the mounting block (205) are in a welded integrated structure.