Quick insertion type arm for unmanned aerial vehicle

Abstract

The utility model relates to the field of unmanned aerial vehicles, in particular to a quick-insertion type arm for an unmanned aerial vehicle, which comprises an arm body, a spiral component and a quick telescopic component. The three-way hydraulic control valve plays a key control role in the rapid stretching and retracting process, the flow direction, pressure and flow of hydraulic oil can be accurately adjusted, it is ensured that the stretching and retracting action of the hydraulic column is stable and accurate, the combined design of the hydraulic column and the hydraulic cylinder provides strong supporting force and bearing capacity for the machine arm, and the machine arm is convenient to use. The hydraulic cylinders can generate large pushing force and pulling force, and the pushing force and the pulling force are transmitted to the vehicle arm body through the hydraulic columns, so that the vehicle arm can stably bear various loads after being connected with the unmanned aerial vehicle, and the loads comprise the weight of the unmanned aerial vehicle, aerodynamic loads generated in the flying process and the weight of carried equipment. The spiral assembly is installed at the top end of the arm body away from the rapid telescopic assembly and provides lift force and power needed by flight for the unmanned aerial vehicle.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane field especially relates to fast insertion type machine arm for unmanned plane. BACKGROUND

[0002] The unmanned plane machine arm is the important component part of unmanned plane, it is the structural component part that extends from the unmanned plane fuselage outward, and the machine arm mainly plays the support and the connection role, and the end usually installs the key components such as propeller, motor, through the coordinated work with the flight control system, power supply system inside the fuselage, provides the power and the lift needed for the unmanned plane to fly, and guarantees the stability and the balance of unmanned plane when flying in the air, in actual operation, such as in the surveying and mapping work needs to replace the machine arm of different functions quickly to obtain different types of data, or needs to replace the damaged machine arm quickly in the logistics transportation to guarantee the timely completion of transportation task, these application scenarios put forward urgent demand to the quick plug function and the convenient replacement mode of machine arm.

[0003] The connection mode of the existing unmanned plane arm usually involves multiple steps and component operations, generally needs to use the tool to tighten or loosen the bolt operation, for example, in the common bolt connection, when installing the machine arm, first, the connecting parts of the machine arm and the fuselage are accurately aligned, then the bolts are inserted one by one, and the tool is used to tighten gradually, in this process, it is necessary to ensure that the tightening force of the bolt is uniform, otherwise it may affect the connection stability of the machine arm and the fuselage, when disassembling, the reverse operation is carried out, the bolts are loosened one by one and taken out, the operation process is relatively cumbersome, for the operator who is not familiar with the structure of unmanned plane, it may take a long time to complete these operations, and it is easy to make operation mistakes, when replacing the machine arm component, the complex connection structure makes the replacement process complex.

[0004] Therefore, in view of the above-mentioned problems that the connection mode of the existing unmanned plane arm is complex, for example, bolt connection, alignment of the connecting parts is needed during installation, bolts are inserted one by one and tightened, the tightening force is uniform, and the reverse operation is carried out during disassembly, the operation is cumbersome, the operator who is not familiar with the structure may spend a long time and make mistakes, and the replacement of components is complicated due to the complex connection structure, a fast insertion type machine arm for unmanned plane can be designed to work with the hydraulic column three-way hydraulic control valve and the hydraulic cylinder, so that the machine arm can be quickly plugged in a short time. UTILITY MODEL CONTENTS

[0005] In order to overcome the problems that the connection mode of the existing unmanned plane arm is complex, for example, bolt connection, alignment of the connecting parts is needed during installation, bolts are inserted one by one and tightened, the tightening force is uniform, and the reverse operation is carried out during disassembly, the operation is cumbersome, the operator who is not familiar with the structure may spend a long time and make mistakes, and the replacement of components is complicated due to the complex connection structure.

[0006] The utility model discloses a quick plug type machine arm for unmanned plane, including machine arm body, screw subassembly and quick retractable subassembly, the quick retractable subassembly is installed to the quick plug quick pull effect of overall realization for quick retractable in the machine arm body inside close one end end part department, the screw subassembly is installed to the machine arm body top end and is away from quick retractable subassembly department and is used for providing stable power to make unmanned plane flight, and quick retractable subassembly includes hydraulic column, three -way hydraulic control valve, hydraulic cylinder and control button, all install hydraulic column in three -way hydraulic control valve port, install the connecting pipeline in three -way hydraulic control valve outside center, and install hydraulic cylinder in connecting pipeline end.

[0007] Preferably, the three-way hydraulic control valve plays a key control role in the quick retracting process, which can accurately adjust the flow direction, pressure and flow of hydraulic oil, ensure the smooth and accurate extension and retraction of the hydraulic column, and provide strong support force and carrying capacity for the machine arm through the combined design of the hydraulic column and the hydraulic cylinder. The hydraulic cylinder can generate a large thrust and tension, which is transmitted to the machine arm body through the hydraulic column, so that the machine arm can stably bear various loads after being connected with the unmanned plane, including the weight of the unmanned plane itself, the aerodynamic load generated during flight and the weight of the carried equipment. The screw subassembly is installed at the top end of the machine arm body away from the quick retractable subassembly, which provides the required lift and power for the unmanned plane to fly. After careful design and optimization, the screw subassembly can achieve efficient power output. The propeller rotates at high speed under the drive of the motor, pushes the air downward, generates upward lift according to the principle of action and reaction, and makes the unmanned plane take off and fly stably in the air.

[0008] Preferably, the control button is electrically connected with the three-way hydraulic control valve.

[0009] Preferably, an installation slot for installing the screw subassembly is formed at the end of the top end of the machine arm body, and three groups of first extension holes are formed in the sidewall of the machine arm body away from the installation slot.

[0010] Preferably, a protective pad is sleeved outside the machine arm body, second extension holes are formed in the protective pad corresponding to the first extension holes, and a wiring hole is formed in the bottom end of the machine arm body on the side of the control button.

[0011] Preferably, a baffle is installed at one end of the machine arm body close to the installation slot, and two groups of wiring boards are symmetrically installed inside the machine arm body.

[0012] Preferably, a plurality of clamping plates are linearly installed at the bottom end of the wiring board, two groups of expansion hanging plates are symmetrically installed at the bottom end of the machine arm body, and a clamping groove for installing the expansion hanging plate is formed at the bottom end of the machine arm body.

[0013] Preferably, the spiral assembly includes a motor, a shaft, and a propeller; the shaft is mounted on the top of the motor, and the propeller is fitted on the top of the shaft; the motor is mounted on the arm body through a mounting slot, and the motor drives the shaft to rotate the propeller.

[0014] The beneficial effects of this utility model are:

[0015] 1. The hydraulic column, three-way hydraulic control valve, and hydraulic cylinder in the quick-extension assembly work together to enable the boom to be quickly inserted and removed in a short time. With the quick-extension assembly, the operator only needs to press the control button, and the hydraulic system can quickly drive the boom to extend or retract, realizing the rapid installation and removal of the boom. Compared with the traditional boom connection method, which may require the use of tools to perform tedious bolt tightening or loosening operations, taking several minutes or even longer, this quick insertion and removal function can shorten the whole process to within tens of seconds, greatly improving the deployment efficiency of the UAV, enabling it to be put into the mission more quickly and obtain critical information in a timely manner. Attached Figure Description

[0016] Fig. 1 The diagram shown is a schematic representation of the overall structure of the quick-connect arm for unmanned aerial vehicles (UAVs) of this utility model.

[0017] Fig. 2 The diagram shown is a schematic representation of the spiral assembly structure of the quick-connect arm for unmanned aerial vehicles (UAVs) of this utility model.

[0018] Fig. 3 The diagram shown is an exploded view of the quick-connect arm for the UAV of this utility model.

[0019] Fig. 4 The diagram shown is a schematic representation of the quick-extension assembly of the quick-connect arm for unmanned aerial vehicles (UAVs) according to this invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Arm body; 101. Mounting slot; 102. Primary telescopic hole; 103. Protective pad; 104. Secondary telescopic hole; 105. Baffle; 106. Cable tray; 107. Clamping plate; 108. Cable hole; 109. Extension suspension plate; 201. Motor; 202. Shaft; 203. Propeller; 301. Hydraulic column; 302. Three-way hydraulic control valve; 303. Hydraulic cylinder; 304. Control button. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figs. 1-4The utility model provides a kind of embodiment: quick plug type machine arm for unmanned aerial vehicle, including machine arm body 1, screw subassembly and quick retractable component;Quick retractable component for realizing overall quick plug quick pull effect is installed in the inside of machine arm body 1 close to one end end portion, screw subassembly is installed at the top end of machine arm body 1 away from quick retractable component for providing stable power to make unmanned aerial vehicle fly, quick retractable component includes hydraulic column 301, three-way hydraulic control valve 302, hydraulic cylinder 303 and control button 304;Three-way hydraulic control valve 302 port place all install hydraulic column 301, three-way hydraulic control valve 302 outside center installs connecting pipeline, connecting pipeline end installs hydraulic cylinder 303, three-way hydraulic control valve 302 plays a key control role in quick retracting process, it can accurately adjust the flow direction, pressure and flow of hydraulic oil, ensure that the extension action of hydraulic column 301 is stable, accurate, the combination design of hydraulic column 301 and hydraulic cylinder 303 provides strong support force and carrying capacity for machine arm, hydraulic cylinder 303 can generate greater thrust and tension, pass through hydraulic column 301 and be transferred to machine arm body 1, so that machine arm can stably bear various loads after being connected with unmanned aerial vehicle, including the weight of unmanned aerial vehicle itself, aerodynamic load generated in flight process and the weight of carried equipment, screw subassembly is installed at the top end of machine arm body 1 away from quick retractable component, provides the lift and power required for unmanned aerial vehicle to fly, and it is carefully designed and optimized, can realize efficient power output, propeller 203 is driven under the motor 201, rotates at high speed, pushes air downward, according to the principle of action and reaction, generates upward lift to make unmanned aerial vehicle take off against gravity and stably fly in the air.

[0023] Please refer to Figs. 3-4 In the embodiment, control button 304 is installed at the bottom end of machine arm body 1 close to screw subassembly, and the control button 304 is electrically connected with the three-way hydraulic control valve 302, which is a very reasonable and convenient design for the operator. When operating the unmanned aerial vehicle, the operator's hand will naturally hold the machine arm or the related part to control and adjust. This position allows the operator to easily touch the control button 304 with his fingers while holding the unmanned aerial vehicle or performing related operations. An installation slot 101 for installing the screw subassembly is provided at the top end of the machine arm body 1 close to the end portion. Three groups of first extension holes 102 are provided on the side wall of the machine arm body 1 away from the installation slot 101. The installation slot 101 at the top end of the machine arm body 1 close to the end portion provides a special installation position for the screw subassembly. When the screw subassembly needs to be maintained, repaired or replaced, the design of the installation slot 101 makes the operation more convenient. Since the screw subassembly is installed in a specific slot, the operator can easily find and approach the connection part for disassembly.

[0024] Referring to Figs. 1-3 In this embodiment, the arm body 1 is externally sleeved with a protective pad 103, the protective pad 103 is provided with a secondary telescopic hole 104 corresponding to the primary telescopic hole 102, the bottom end of the arm body 1 is provided with a wire hole 108 on the side of the control button 304, and the protective pad 103 externally sleeved with the arm body 1 provides important physical protection for the arm. In the use process of the unmanned aerial vehicle, the arm may face various collision and scraping risks. The arm body 1 is provided with a baffle 105 at one end close to the mounting groove 101, and two groups of wire boards 106 are symmetrically installed in the arm body 1. The baffle 105 installed at one end of the arm body 1 close to the mounting groove 101 provides an important physical protection barrier for the screw assembly. In the flight process of the unmanned aerial vehicle, especially in complex environments, the screw assembly faces the risk of being collided by external objects.

[0025] Referring to Figs. 1-4 In this embodiment, a plurality of clamping plates 107 are linearly installed at the bottom end of the wire board 106, and two groups of expansion hanging plates 109 are symmetrically installed at the bottom end of the arm body 1. The bottom end of the arm body 1 is provided with a clamping groove for installing the expansion hanging plate 109. The plurality of clamping plates 107 linearly installed at the bottom end of the wire board 106 provide a more reliable fixing method for the cable. In the operation process of the unmanned aerial vehicle, the arm will undergo various movements and vibrations. If the cable is not fixed sufficiently, displacement, entanglement, even breakage and other problems may occur. The clamping plate 107 can tightly clamp the cable, so that it maintains a stable position on the wire board 106. The arrangement of the plurality of clamping plates 107 makes the arrangement of the cable more orderly. When assembling, repairing or upgrading the unmanned aerial vehicle, the operator can place the cable between the clamping plates 107 according to a certain order and layout, so that the cable is neatly arranged. This not only facilitates the identification and operation of the operator on the cable, but also improves the work efficiency. The screw assembly comprises a motor 201, a rotating shaft 202 and a propeller 203. The rotating shaft 202 is installed at the top end of the motor 201, and the propeller 203 is sleeved at the top end of the rotating shaft 202. The motor 201 is installed on the arm body 1 through the mounting groove 101. The motor 201 drives the rotating shaft 202 to rotate the propeller 203. The rotating shaft 202 installed at the top end of the motor 201 plays a key role in power transmission. The rotating torque generated by the motor 201 is effectively transmitted to the propeller 203 through the rotating shaft 202, realizing the conversion of electric energy into mechanical energy. This direct connection method reduces the loss of energy in the transmission process and improves the efficiency of power transmission.

[0026] In the process of work, when the unmanned aerial vehicle needs to carry out the plug-in operation of the manipulator, the operator first ensures that the unmanned aerial vehicle is in a safe and stable state, for example, parked on a flat ground or a suitable workbench, at this time, the quick telescopic assembly on the manipulator body 1 is in the initial state, the hydraulic column 301 is retracted inside the manipulator, the three-way hydraulic control valve 302 is in the closed or standby state, the hydraulic oil in the hydraulic cylinder 303 is in the static state, the manipulator body 1 is aligned with the corresponding interface of the unmanned aerial vehicle body and is inserted or selected to slide into the corresponding sliding groove, in the process of insertion, the protective pad 103 outside the manipulator body 1 first contacts the body, which plays a certain buffering and protection role, prevents hard collision between the manipulator and the body and causes damage, with the continuous insertion of the manipulator, the baffle 105 near one end of the installation slot 101 of the manipulator body 1 also gradually approaches the body, which can prevent foreign matters from entering the connection part of the manipulator and the body during the insertion process, and protect the cleanliness and safety of the internal structure, when the manipulator is inserted to a certain extent, the operator presses the control button 304 near the screw assembly at the bottom end of the manipulator body 1, the control button 304 is electrically connected with the three-way hydraulic control valve 302, after pressing the button, the electrical signal is quickly transmitted to the three-way hydraulic control valve 302, the control valve is opened and adjusts the flow direction and pressure of the hydraulic oil according to the preset program and signal instruction, when the manipulator needs to be pulled out, the operator presses the control button 304 again, sends the opposite electrical signal to the three-way hydraulic control valve 302, after receiving the signal, the control valve adjusts the flow direction of the hydraulic oil, so that the piston in the hydraulic cylinder 303 moves reversely, drives the hydraulic column 301 to retract into the manipulator body 1, with the retraction of the hydraulic column 301, the connection between the manipulator and the unmanned aerial vehicle body is released, the operator can easily pull out the manipulator from the body interface, according to the use scene of the unmanned aerial vehicle, whether to install the expansion suspension plate 109 and the corresponding length of the expansion suspension plate 109 can be determined, so as to hang other devices by the staff.

[0027] Through the above steps, the three-way hydraulic control valve 302 plays a key control role in the fast extension and retraction process, which can accurately adjust the flow direction, pressure and flow of hydraulic oil, ensure the smooth and accurate extension and retraction action of the hydraulic column 301, and the combination design of the hydraulic column 301 and the hydraulic cylinder 303 provides strong support force and carrying capacity for the arm, the hydraulic cylinder 303 can generate greater thrust and pull force, which is transmitted to the arm body 1 through the hydraulic column 301, so that the arm can stably bear various loads after being connected with the unmanned aerial vehicle, including the weight of the unmanned aerial vehicle itself, the aerodynamic load generated during flight and the weight of the carried equipment, the screw assembly is installed at the top end of the arm body 1 away from the fast extension and retraction assembly, which provides the required lift and power for the flight of the unmanned aerial vehicle, and through careful design and optimization, it can realize efficient power output, the propeller 203 rotates at high speed under the drive of the motor 201, pushes the air downward, according to the principle of action and reaction, generates upward lift to make the unmanned aerial vehicle overcome gravity and take off and fly stably in the air.

Claims

1. A quick-connect arm for unmanned aerial vehicles (UAVs), comprising an arm body (1); characterized in that: It also includes a spiral assembly and a quick-extension assembly; a quick-extension assembly for quick extension and retraction to achieve the overall quick insertion and quick removal effect is installed inside the arm body (1) near one end; a spiral assembly for providing stable power to enable the drone to fly is installed at the top of the arm body (1) away from the quick-extension assembly; the quick-extension assembly includes a hydraulic column (301), a three-way hydraulic control valve (302), a hydraulic cylinder (303) and a control button (304); a hydraulic column (301) is installed at each port of the three-way hydraulic control valve (302); a connecting pipe is installed at the center of the outside of the three-way hydraulic control valve (302); and a hydraulic cylinder (303) is installed at the end of the connecting pipe.

2. The quick-connect arm for UAVs according to claim 1, characterized in that: A control button (304) is installed at the bottom end of the arm body (1) near the screw assembly. The control button (304) is electrically connected to the three-way hydraulic control valve (302).

3. The quick-connect arm for UAVs according to claim 1, characterized in that: The top end of the boom body (1) is provided with a mounting groove (101) for installing the spiral assembly, and the side wall of the boom body (1) away from the mounting groove (101) is provided with three sets of primary telescopic holes (102) in a circumferential manner.

4. The quick-connect arm for UAVs according to claim 3, characterized in that: The arm body (1) is covered with a protective pad (103). The protective pad (103) and the primary telescopic hole (102) are both provided with secondary telescopic holes (104). The bottom of the arm body (1) is provided with a wiring hole (108) on the side of the control button (304).

5. The quick-connect arm for a drone according to claim 4, characterized in that: A baffle (105) is installed at one end of the arm body (1) near the mounting slot (101), and two sets of cable trays (106) are symmetrically installed inside the arm body (1).

6. The quick-connect arm for a drone according to claim 5, characterized in that: Multiple sets of clamping plates (107) are linearly installed at the bottom of the wiring board (106), and two sets of extension suspension plates (109) are symmetrically installed at the bottom of the arm body (1). The bottom of the arm body (1) is provided with a slot for installing the extension suspension plates (109).

7. The quick-connect arm for UAVs according to claim 1, characterized in that: The spiral assembly includes a motor (201), a rotating shaft (202), and a propeller (203). The top of the motor (201) is fitted with a rotating shaft (202), and the top of the rotating shaft (202) is fitted with a propeller (203). The motor (201) is mounted on the arm body (1) through a mounting slot (101). The motor (201) drives the rotating shaft (202) to rotate the propeller (203).

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