Freight unmanned aerial vehicle battery quick replacement device and replacement method

Abstract

The application belongs to the technical field of unmanned aerial vehicles, and particularly relates to a cargo unmanned aerial vehicle battery quick replacement device. The following scheme is proposed and comprises an unmanned aerial vehicle main body and a battery replacement platform. The bottom of the unmanned aerial vehicle main body is provided with a battery mounting seat, and a plurality of penetratingly arranged mounting cavities are formed in one end of the battery mounting seat. A battery main body that can be taken out from the opening is placed in the mounting cavities. Limiting mechanisms that are horizontally and equidistantly distributed are slidingly connected to the bottom of the inner walls of the two sides of the mounting cavities. Vertical telescopic mechanisms are slidingly contacted to the side of the limiting mechanisms that is far away from the mounting cavities. An electromagnetic bearing seat is arranged at the middle position of the top of the battery replacement platform. The electromagnetic bearing seat is magnetically attracted to the bottom of the battery mounting seat after being electrified. The application simultaneously completes the battery unloading and battery loading operations, improves the actual loading and unloading rate of the unmanned aerial vehicle battery, simultaneously realizes the battery quick replacement, and further improves the stability of the battery in the use process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, and particularly relates to a freight unmanned aerial vehicle battery quick replacement device and method. BACKGROUND

[0002] An unmanned aerial vehicle, referred to as a UAV, is an unmanned aircraft that is controlled by using radio remote control equipment and self-provided program control devices. The UAV has no cockpit, but is installed with devices such as an autopilot and a program control device. The UAV is tracked, positioned, remotely controlled, remotely measured and digitally transmitted by ground equipment. With the development and popularization of UAV technology, UAVs have been gradually applied to various industries. A freight UAV is one of the applications, and is mainly used for carrying or transferring goods.

[0003] Generally, a freight UAV is provided with electrically-controlled clamps on both sides of the lower part of the UAV. Goods are fixed between the clamps, and then a worker remotely controls the UAV from the ground to carry or transfer the goods to a corresponding place by using the freight UAV. However, the freight UAV is often used for a long time, and direct charging will affect the work efficiency. Therefore, battery replacement is often performed during the work process. However, it is very inconvenient to replace a large number of batteries in a small space of the UAV according to the prior art, and the actual work efficiency is seriously affected. SUMMARY

[0004] Based on the technical problem of the background technology, the present application provides a freight UAV battery quick replacement device.

[0005] The freight UAV battery quick replacement device provided by the present application comprises a UAV main body and a battery replacement platform. The bottom of the UAV main body is provided with a battery mounting seat. A plurality of mounting cavities penetratingly arranged are formed in one end of the battery mounting seat. A battery main body that can be taken out from the opening is placed in the mounting cavities. Limiting mechanisms horizontally and equidistantly distributed are slidably connected to the bottom of the inner walls of the mounting cavities. A vertical telescopic mechanism is slidably connected to the side of the limiting mechanism away from the mounting cavities. An electromagnetic bearing seat is arranged at the middle position of the top of the battery replacement platform. The electromagnetic bearing seat is magnetically attracted to the bottom of the battery mounting seat after being electrified. The electromagnetic bearing seat is magnetically repelled to the vertical telescopic mechanism after being electrified, so as to compress the vertical telescopic mechanism upward. The limiting mechanism slides to the side close to the vertical telescopic mechanism and separates from the battery main body when the vertical telescopic mechanism is compressed upward.

[0006] Preferably, the two sides of the UAV main body are provided with support frames and freight clamps. A magnetic block is connected to the bottom end of the vertical telescopic mechanism. A second spring obliquely arranged is connected between the limiting mechanism and the vertical telescopic mechanism. The second spring is obliquely downward to the side away from the limiting mechanism. The electromagnetic bearing seat is magnetically repelled to the magnetic block after being electrified. The top of the battery replacement platform is provided with a battery pushing mechanism and a battery storage mechanism at both ends, respectively.

[0007] The first electric guide rail is fixed at the middle position of the top of the outer wall at both ends of the battery replacement platform, and the top of the first electric guide rail is connected with the second electric guide rail, which is vertically arranged between the first electric guide rail and the second electric guide rail; the top of the second electric guide rail is connected with a rotating seat; the bottom of the battery pushing mechanism and the battery storage mechanism is respectively connected with the top of the two rotating seats; the end of the battery pushing mechanism and the battery storage mechanism is provided with a cavity matched with the battery body; the cavity of the battery pushing mechanism is provided with a pushing mechanism, which is provided with an electric push rod and a push plate; the electric push rod is extended and retracted to make the push plate move horizontally in the cavity to push the battery.

[0008] Preferably, the mounting block is embeddedly fixed at the upper position of the mounting cavity at both ends of the battery mounting seat, and the end surface of the mounting block is provided with a plurality of annularly distributed infrared sensors; the end of the battery pushing mechanism and the battery storage mechanism is provided with an infrared emitter matched with the corresponding position of the infrared sensor; the battery replacement platform is provided with a microprocessor, and the infrared emitter is connected with the signal input end of the microprocessor through a signal line; the alignment and deviation between the infrared emitter and the corresponding position infrared sensor is transmitted to the microprocessor to control the first electric guide rail, the second electric guide rail and the rotating seat by the microprocessor.

[0009] Preferably, the connecting cavity penetrating through both ends is formed at both sides of the mounting cavity of the battery mounting seat, and the vertical telescopic mechanism is provided with a fixed rod fixed to the inner wall of the top of the connecting cavity; the fixed rod is located at the side of the connecting cavity away from the corresponding position of the mounting cavity; the bottom of the outer wall of the fixed rod is slidingly connected with a fixed tube with both ends open; the bottom end of the fixed tube is fixed with a magnetic block; the first spring is connected between the bottom end of the fixed rod and the magnetic block; the first spring is slidingly sleeved in the inside of the fixed tube; the bottom of the connecting cavity is provided with a through slot corresponding to the position of the magnetic block; the inner wall of the through slot is slidingly connected with the outer wall of the magnetic block; the fixed tube is fixed to the outer wall of the side of the fixed tube close to the mounting cavity, and the fixed block in contact with the limiting mechanism is fixed to the outer wall; the fixed block is arranged in a hemispherical structure arched away from the side of the fixed tube.

[0010] Preferably, the installation cavity side wall is provided with an embedded groove at a position corresponding to the limiting mechanism, and the limiting mechanism is provided with a limiting piece in sliding connection with the embedded groove, the limiting piece extends vertically upward, the bottom of the outer wall of the battery main body on both sides is provided with a limiting groove at a position corresponding to the limiting piece, the bottom of the inner wall of one side of the embedded groove is provided with a through hole, the outer wall of the limiting piece is provided with a connecting rod in sliding connection with the inner wall of the through hole at a position corresponding to the through hole, one end of the connecting rod away from the limiting piece is fixedly connected with a connecting block, the outer wall of the connecting block is in sliding connection with the bottom inner wall of the connecting cavity, the connecting block is provided in a circular table shape, the outer diameter of the connecting block on the side close to the vertical extension mechanism gradually increases away from the vertical extension mechanism, the circumferential outer wall of the connecting block is provided in an outwardly arched arc shape, the top of the circumferential outer wall of the connecting block is in sliding contact with the bottom of the spherical outer wall of the fixing block, and the second spring is fixed between the connecting block and the fixing tube.

[0011] Preferably, the bottom of the installation cavity is provided with a plurality of positioning mechanisms distributed along the side edges, and the positioning mechanisms are provided with positioning pieces extending towards both ends, the cross section of the positioning piece is provided in a trapezoidal structure with a width gradually decreasing upward, the bottom of the battery main body is provided with a positioning groove adapted to the positioning piece, the positioning groove penetrates at both ends, the inner wall of the bottom of the installation cavity is provided with a moving groove in sliding connection with the bottom ends of the outer walls of the positioning pieces at a position corresponding to the positioning pieces, the bottom of the moving groove is provided with a through hole, and a third spring is connected between the bottom outer wall of the positioning piece and the bottom inner wall of the moving groove. The bottom of the positioning piece is fixedly connected with a sliding rod in sliding connection with the inner wall of the through hole.

[0012] Preferably, the top of the positioning piece is fixedly connected with a rubber sleeve, the top of the outer wall of the rubber sleeve on both sides is provided with a plurality of adsorption grooves horizontally and equidistantly distributed, the inner wall of the adsorption groove is provided in an arc shape, the top of the outer wall of one end of the positioning piece and the bottom ends of both sides are provided with first through grooves, the inner wall of the rubber sleeve is provided with second through grooves at positions corresponding to the first through grooves, and the first through grooves and the second through grooves at the corresponding positions form a cylindrical structure.

[0013] Preferably, the outer wall of one end of the battery mounting seat is provided with a penetratingly arranged fixing groove below the moving groove, and the inner wall of the fixing groove is fixedly connected with a magnetic separation plate, the positioning piece and the sliding rod are made of magnetic separation material, the bottom end of the sliding rod is fixedly connected with a magnetic sheet, the outer wall of the magnetic separation plate is provided with a penetratingly arranged first sliding hole at a position corresponding to the sliding rod, the bottom of the battery mounting seat is provided with a penetratingly arranged second sliding hole at a position corresponding to the sliding rod, and the outer wall of the sliding rod is in sliding connection with the inner walls of the first sliding hole and the second sliding hole.

[0014] Preferably, the battery body is provided with a top-opened battery mounting box, and the battery mounting box is loaded with a battery inside, the top opening of the battery mounting box is detachably connected with a cover plate, electrode sheets are fixed at both end positions of the outer wall of the top of the battery mounting box, the side wall of the battery mounting box facing the two ends of the opening of the mounting cavity is set as front and back sides, the side wall of the battery mounting box abutting with the inner walls of the two sides of the mounting cavity is set as left and right sides, the battery mounting box is extended towards the front and back sides, the bottom of the battery mounting box is provided with a limiting groove on the left and right sides, the bottom of the battery mounting box is provided with a positioning groove, the top of the outer wall of the left and right sides of the battery mounting box is provided with vertically distributed communication grooves, the communication grooves are extended and penetrated towards the front and back sides of the two ends, and the inner wall of the communication grooves is fixed with horizontally distributed heat conduction sheets, and the heat conduction sheets are penetrated.

[0015] A cargo unmanned aerial vehicle battery replacement method adopts a cargo unmanned aerial vehicle battery quick replacement device, and includes an unmanned aerial vehicle body and a battery replacement platform, the bottom of the unmanned aerial vehicle body is provided with a mounting cavity capable of extracting a battery from an end, the two sides of the mounting cavity are provided with limiting mechanisms for limiting and fixing the battery, and vertical telescopic mechanisms in contact with the limiting mechanisms are telescoped in a vertical direction, the battery replacement platform is provided with an electromagnetic plate, and when replacing the battery, the unmanned aerial vehicle is landed on the electromagnetic plate, after being powered on, the electromagnetic plate is used to magnetically assist in stabilizing the unmanned aerial vehicle, the vertical telescopic mechanisms are moved by using magnetism to loosen the limiting mechanisms on the two sides of the battery, and after the battery replacement is completed, the vertical telescopic mechanisms and the limiting mechanisms are automatically reset to lock the replaced battery.

[0016] The beneficial effects in the application are:

[0017] 1. In the embodiment of the application, when the battery needs to be replaced, the staff remotely controls the unmanned aerial vehicle body to land on the electromagnetic bearing seat, the electromagnetic bearing seat is powered on to generate magnetic attraction to the unmanned aerial vehicle body to maintain the stability of the unmanned aerial vehicle body, at the same time, repulsive magnetic force is generated between the magnetic blocks, the vertical telescopic mechanisms are lifted upwards, the limiting mechanisms are away from the battery body to loosen the limiting of the battery body, a battery pushing mechanism at one end position is used to push a new battery into the corresponding mounting cavity, and the old battery is pushed out into the battery storage mechanism, so that the mounting and dismounting operations are completed at the same time, and the actual mounting and dismounting rate of the battery of the unmanned aerial vehicle is greatly improved.

[0018] 2. In this embodiment of the invention, after the new battery is pushed in, the power supply to the electromagnetic support is disconnected, allowing the limiting mechanism to return to its original position and secure the battery for use. At this time, the second spring tilts away from the limiting mechanism. During flight, the impact and vibration forces of the battery body on the limiting mechanism are dispersed by vertical transmission to the vertical telescopic mechanism. The resistance is increased by the reverse tilting force of the second spring, thereby improving the stability of the battery body's limiting and securing. When the limiting mechanism is subjected to a horizontal impact and exerts force on the vertical telescopic mechanism, the tilted second spring exerts force downwards on the vertical telescopic mechanism, causing the vertical telescopic mechanism to press down on one side of the limiting mechanism. This results in the feedback force of the vertical telescopic mechanism on the limiting mechanism being set in opposite directions to the force generated by the limiting mechanism itself. Thus, through the connection and cooperation between the mechanisms, the battery can be quickly replaced while further improving the stability of the battery during use.

[0019] 3. In this embodiment of the invention, when the UAV body lands for battery replacement, the first electric guide rail, the second electric guide rail, and the rotating seat are automatically activated by the positional deviation between the infrared transmitter and the infrared sensor to adjust the distance, horizontal position, and offset angle, thereby aligning the battery pushing mechanism and the battery storage mechanism with the mounting cavity. This ensures the normal operation of the battery replacement and achieves rapid positioning, avoiding manual adjustment errors that could affect replacement efficiency.

[0020] 4. In this embodiment of the invention, the hemispherical fixing block of the vertical telescopic mechanism and the frustum-shaped connecting block of the limiting mechanism are contacted and slid together. On the one hand, the friction between the two mechanisms is reduced by sliding on the arc surface to enable a quick response for battery replacement. On the other hand, the force direction at the contact position between the fixing block and the connecting block is symmetrically arranged along the horizontal line with the tilt direction of the second spring. This increases the resistance of the first and second springs to the limiting mechanism, ensuring the stability of the battery fixation. Furthermore, the tilted force at the contact position between the fixing block and the connecting block further enhances the effect of the vertical telescopic mechanism when it applies feedback force to the limiting mechanism, thereby enhancing the stability of the battery body during use.

[0021] 5. In this embodiment of the invention, when replacing the battery, the magnetic force generated by the electromagnetic support will attract the positioning component downwards by a certain distance, thereby ensuring the limited movement of the battery while reducing the pushing friction force on the battery, thus achieving faster and more efficient replacement. When the battery is used after replacement, the positioning component is pushed out of the bottom of the battery body by the elastic force of the third spring at the bottom, thereby assisting in fixing the battery. Furthermore, due to the penetration of the positioning groove at the bottom of the battery body, the positioning component will shake slightly in the vertical direction during use, causing the gap on the positioning groove to change back and forth, thereby increasing the gas flow effect in the positioning groove and improving the heat dissipation effect on the battery.

[0022] 6、The embodiment of the present application, the use of the first through slot and the second through slot of the penetration of the bottom of the battery body can increase the gas flow effect, and in the process of reciprocating movement of the positioning member along with the third spring in the vertical direction, the first through slot and the second through slot are compressed and expanded between the price and change constantly, thereby increasing the airflow fluctuation effect, further enhancing the actual heat dissipation effect of the battery, using the communication groove and the distributed heat conduction sheet located on both sides of the battery body, cooperating with the reciprocating positioning member of the bottom to further enhance the actual heat dissipation effect of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The overall structure of the cargo unmanned aerial vehicle battery quick replacement device is shown in the figure.

[0024] Figure 2 The battery mounting seat structure diagram of the cargo unmanned aerial vehicle battery quick replacement device is shown in the figure.

[0025] Figure 3 The battery mounting seat structure diagram of the cargo unmanned aerial vehicle battery quick replacement device is shown in the figure.

[0026] Figure 4 The connection cavity internal structure diagram of the cargo unmanned aerial vehicle battery quick replacement device is shown in the figure.

[0027] Figure 5 The positioning mechanism structure diagram of the cargo unmanned aerial vehicle battery quick replacement device is shown in the figure.

[0028] Figure 6 The mounting block structure diagram of the cargo unmanned aerial vehicle battery quick replacement device is shown in the figure.

[0029] Figure 7 The battery replacement platform structure diagram of the cargo unmanned aerial vehicle battery quick replacement device is shown in the figure.

[0030] Figure 8 The battery main body structure diagram of the cargo unmanned aerial vehicle battery quick replacement device is shown in the figure.

[0031] In the figure: 1 unmanned aerial vehicle main body, 101 support frame, 102 cargo carrying clamping jaw, 2 battery replacement platform, 201 battery pushing mechanism, 202 battery storage mechanism, 203 electromagnetic bearing seat, 204 first electric guide rail, 205 second electric guide rail, 206 rotating seat, 3 battery mounting seat, 301 second sliding hole, 4 mounting cavity, 401 embedded groove, 402 moving groove, 5 battery main body, 501 limiting groove, 502 cover plate, 503 electrode sheet, 504 communication groove, 505 heat conduction sheet, 6 connecting cavity, 7 vertical telescopic mechanism, 701 fixed tube, 702 first spring, 703 fixed rod, 704 fixed block, 8 magnetic block, 9 limiting mechanism, 901 limiting piece, 902 connecting rod, 903 connecting block, 10 second spring, 11 magnetic separation plate, 1101 first sliding hole, 12 positioning mechanism, 1201 positioning piece, 12011 first through groove, 1202 sliding rod, 1203 third spring, 1204 iron sheet, 13 rubber sleeve, 1301 second through groove, 1302 adsorption groove, 14 mounting block, 1401 infrared sensor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0033] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0034] Embodiment 1

[0035] Reference Figures 1-7The utility model provides a kind of freight unmanned aerial vehicle battery quick replacement device, including unmanned aerial vehicle main body 1 and battery replacement platform 2, the bottom of unmanned aerial vehicle main body 1 is provided with battery mounting seat 3, and the one end of battery mounting seat 3 is opened with multiple penetration arrangement installation cavity 4, battery main body 5 is placed in installation cavity 4, and the bottom of the inner wall of installation cavity 4 both sides is slidably connected with the limit mechanism 9 of horizontal direction equidistance distribution, the side of limit mechanism 9 away from installation cavity 4 is slidably contacted with vertical telescopic mechanism 7, the middle position of battery replacement platform 2 top is provided with electromagnetic bearing seat 203, and electromagnetic bearing seat 203 is magnetically attracted between the bottom of battery mounting seat 3 after electrification, the magnetism between electromagnetic bearing seat 203 after electrification and vertical telescopic mechanism 7 is magnetically repelled and compresses vertical telescopic mechanism 7 upwards, and when vertical telescopic mechanism 7 is compressed upwards, limit mechanism 7 is slid towards the side close to vertical telescopic mechanism 7 and separates from battery main body 5, while completing the work of battery unloading and battery loading, improve the actual loading and unloading rate of unmanned aerial vehicle battery, while realizing the quick replacement of battery, further improve the stability in the use process of battery.

[0036] In the utility model, both sides of unmanned aerial vehicle main body 1 are provided with support frame 101 and freight clamping jaw 102, the bottom end of vertical telescopic mechanism 7 is connected with magnetic block 8, second spring 10 is connected between limit mechanism 9 and vertical telescopic mechanism 7 and is placed obliquely, second spring 10 is inclined downward to the side away from limit mechanism 9, the magnetism between electromagnetic bearing seat 203 after electrification and magnetic block 8 is magnetically repelled, the both ends of battery replacement platform 2 top are provided with battery pushing mechanism 201 and battery storage mechanism 202 respectively;

[0037] The top middle position of the outer wall of both ends of battery replacement platform 2 is fixed with first electric guide rail 204, and the top of first electric guide rail 204 is connected with second electric guide rail 205, and first electric guide rail 204 and second electric guide rail 205 are vertically arranged, the top of second electric guide rail 205 is connected with rotating seat 206, the bottom of battery pushing mechanism 201 and battery storage mechanism 202 is connected with the top of two rotating seats 206 respectively, and the end of battery pushing mechanism 201 and battery storage mechanism 202 is provided with cavity adapted to battery main body 5, and pushing mechanism is arranged in the cavity of battery pushing mechanism 201, and the pushing mechanism is provided with electric push rod and push plate, and the telescopic operation of electric push rod makes push plate move horizontally in the cavity to push battery;

[0038] When the battery needs to be replaced, the staff remotely drops the unmanned aerial vehicle body 1 on the electromagnetic bearing seat 203, energizes the electromagnetic bearing seat 203 to generate magnetic attraction to the unmanned aerial vehicle body 1 to maintain the stability of the unmanned aerial vehicle body 1, and generates repulsive magnetic force between the magnetic blocks 8, pushes the vertical telescopic mechanism 7 upward, and makes the limiting mechanism 9 away from the battery body 5 to release the limiting of the battery body 5, so as to push the new battery into the corresponding installation cavity 4 by the battery pushing mechanism 201 at one end position, and push the old battery out into the battery storage mechanism 202, thereby completing the mounting and dismounting operation at the same time, and greatly improving the actual mounting and dismounting rate of the unmanned aerial vehicle battery.

[0039] After the new battery is pushed in, the energization of the electromagnetic bearing seat 203 is disconnected, the limiting mechanism 9 is reset, the battery is fixed, and the use is completed, at this time, the second spring 10 is inclined to the side away from the limiting mechanism 9, the impact force and vibration force of the battery body 5 on the limiting mechanism 9 are vertically conducted to the vertical telescopic mechanism 7 during flight to disperse, and the resistance is increased by the reverse inclination of the second spring 10 to improve the stability of the limiting and fixing of the battery body 5, and when the limiting mechanism 9 is subjected to horizontal impact and exerts force to the side of the vertical telescopic mechanism 7, the second spring 10 arranged obliquely exerts force to the vertical telescopic mechanism 7 obliquely downward, so that the vertical telescopic mechanism 7 extrudes one side of the limiting mechanism 9 downward, and the feedback force of the vertical telescopic mechanism 7 on the limiting mechanism 9 and the exertion of the limiting mechanism 9 are reversely arranged, thereby realizing the quick replacement of the battery and further improving the stability during the use of the battery through the connection and cooperation between the mechanisms.

[0040] In the application, the battery mounting seat 3 is embedded with mounting blocks 14 at the upper positions of the installation cavities 4 at both ends, and the end faces of the mounting blocks 14 are provided with a plurality of annularly distributed infrared sensors 1401, the one ends of the battery pushing mechanism 201 and the battery storage mechanism 202 are provided with infrared emitters matched with the infrared sensors 1401, the battery replacement platform 2 is provided with a microprocessor, the infrared emitters are connected with the signal input end of the microprocessor through signal lines, and the alignment and deviation between the infrared emitters and the corresponding position infrared sensors 1401 are transmitted to the microprocessor to control the first electric guide rail 204, the second electric guide rail 205 and the rotating seat 206 by the microprocessor;

[0041] Therefore, when the unmanned aerial vehicle body 1 lands for battery replacement, the first electric guide rail 204, the second electric guide rail 205 and the rotating seat 206 are automatically started through the position deviation between the infrared emitters and the infrared sensors 1401 to adjust the distance, the horizontal position and the deviation angle, so that the battery pushing mechanism 201 and the battery storage mechanism 202 correspond to the positions of the installation cavities 4, the normal operation of the battery replacement operation is ensured, and the quick positioning is realized to avoid the influence of manual adjustment error on the replacement efficiency.

[0042] In the application, the battery mounting seat 3 is provided with two penetrating connection cavities 6 on both sides of the mounting cavity 4, and the vertical telescopic mechanism 7 is provided with a fixed rod 703 fixed to the top inner wall of the connection cavity 6, the fixed rod 703 is located in the connection cavity 6 away from the side of the corresponding position mounting cavity 4, the bottom of the outer wall of the fixed rod 703 is slidably connected with a fixed tube 701 with two open ends, the bottom end of the fixed tube 701 is fixed with a magnetic block 8, and the first spring 702 is connected between the bottom end of the fixed rod 703 and the magnetic block 8, the first spring 702 is slidably sleeved in the inside of the fixed tube 701, a through slot is formed in the bottom of the connection cavity 6 and corresponds to the position of the magnetic block 8, and the through slot is slidably connected between the inner wall and the outer wall of the magnetic block 8, and the outer wall of the fixed tube 701 is fixed with a fixed block 704 in contact with the limiting mechanism 9 on the side wall close to the mounting cavity 4, and the fixed block 704 is arranged in a hemispherical structure arched to the side away from the fixed tube 701.

[0043] In the application, the side wall of the mounting cavity 4 is provided with an embedded slot 401 at the position corresponding to the limiting mechanism 9, and the limiting mechanism 9 is provided with a limiting piece 901 slidably connected with the embedded slot 401, the limiting piece 901 extends vertically upward, the bottom of the outer wall of the battery body 5 is provided with a limiting slot 501 at the position corresponding to the limiting piece 901, a through hole is formed in the bottom of the inner wall of the embedded slot 401, the outer wall of the limiting piece 901 is provided with a connecting rod 902 slidably connected with the inner wall of the through hole at the position corresponding to the through hole, the end of the connecting rod 902 away from the limiting piece 901 is fixed with a connecting block 903, the outer wall of the connecting block 903 is slidably connected with the bottom inner wall of the connection cavity 6, the connecting block 903 is arranged in a circular table-like structure, the outer diameter of the connecting block 903 close to the vertical telescopic mechanism 7 gradually increases to the side away from the vertical telescopic mechanism 7, the circumferential outer wall of the connecting block 903 is arranged in an arc-shaped structure arched outward, the top of the circumferential outer wall of the connecting block 903 is slidably connected with the bottom of the spherical outer wall of the fixed block 704, and the second spring 10 is fixed between the connecting block 903 and the fixed tube 701.

[0044] The hemispherical fixed block 704 of the vertical telescopic mechanism 7 and the circular table-like connecting block 903 of the limiting mechanism 9 are in contact and sliding, on the one hand, the friction between the two mechanisms is reduced through arc surface sliding to quickly respond to battery replacement, on the other hand, the force direction of the contact position of the fixed block 704 and the connecting block 903 and the inclination direction of the second spring 10 are symmetrically arranged along the horizontal line, thereby improving the resistance of the first spring 702 and the second spring 10 to the limiting mechanism 9, to ensure the stability of the fixed battery, and through the inclined force of the contact position of the fixed block 704 and the connecting block 903, the effect of the vertical telescopic mechanism 7 on the limiting mechanism 9 is further enhanced when the feedback force is applied, to enhance the stability of the battery body 5 in use.

[0045] The bottom of the installation cavity 4 is provided with a plurality of positioning mechanisms 12 distributed along the side edges, and the positioning mechanism 12 is provided with a positioning piece 1201 extending towards both ends, the cross section of the positioning piece 1201 is provided in a trapezoidal structure with the width gradually decreasing upwards, the bottom of the battery body 5 is provided with a positioning groove matched with the positioning piece 1201, the positioning groove penetrates at both ends, the inner wall of the bottom of the installation cavity 4 is provided with a moving groove 402 at a position corresponding to the positioning piece 1201, the moving groove 402 is provided with a through hole at the bottom, the outer wall of the bottom of the positioning piece 1201 is connected with the inner wall of the bottom of the moving groove 402 through a third spring 1203, and the bottom of the positioning piece 1201 is fixedly provided with a sliding rod 1202 slidingly connected with the inner wall of the through hole.

[0046] When the battery is replaced, the magnetic force generated by the electromagnetic bearing seat 203 attracts the positioning piece 1201 downward by a certain distance, so as to reduce the friction force of the battery while ensuring the movement of the battery, thereby realizing quick replacement, and when the battery is used after replacement, the bottom of the battery body 5 is pushed out by the elastic force of the third spring 1203 at the bottom of the positioning piece 1201, so as to assist in fixing the battery, and through the penetration of the positioning groove at the bottom of the battery body 5, the positioning piece 1201 is slightly shaken in the vertical direction during use, so as to make the gap on the positioning groove reciprocate, thereby increasing the gas flow effect in the positioning groove, and improving the heat dissipation effect of the battery.

[0047] In the application, the top of the positioning piece 1201 is fixedly provided with a rubber sleeve 13, the top of the outer wall of the rubber sleeve 13 is provided with horizontally distributed adsorption grooves 1302, the inner wall of the adsorption groove 1302 is provided in an arc structure, the rubber sleeve 13 and the arc structure are used to increase the adsorption stability between the top of the positioning piece 1201 and the positioning groove at the bottom of the battery body 5, so as to further enhance the stability of the battery fixation while realizing quick replacement of the battery, the top of the outer wall of one end of the positioning piece 1201 and the bottom of the two sides are provided with first through grooves 12011, the inner wall of the rubber sleeve 13 is provided with second through grooves 1301 at positions corresponding to the first through grooves 12011, and the first through grooves 12011 and the second through grooves 1301 at the corresponding positions form a cylindrical structure.

[0048] The penetration of the first through groove 12011 and the second through groove 1301 can increase the gas flow effect at the bottom of the battery body 5, and in the process of reciprocating movement of the positioning piece 1201 in the vertical direction with the third spring 1203, the first through groove 12011 and the second through groove 1301 are compressed and expanded to change constantly, thereby increasing the airflow fluctuation effect and further enhancing the actual heat dissipation effect of the battery.

[0049] In the application, the outer wall of one end of the battery mounting seat 3 is provided with a penetratingly arranged fixing groove below the moving groove 402, and the inner wall of the fixing groove is fixed with a magnetic isolation plate 11, the positioning member 1201 and the sliding rod 1202 are both made of magnetic isolation material, the bottom end of the sliding rod 1202 is fixed with a magnetic sheet 1204, the outer wall of the magnetic isolation plate 11 is provided with a penetratingly arranged first sliding hole 1101 at the position corresponding to the sliding rod 1202, the bottom of the battery mounting seat 3 is provided with a penetratingly arranged second sliding hole 301 at the position corresponding to the sliding rod 1202, and the outer wall of the sliding rod 1202 is slidingly connected with the inner walls of the first sliding hole 1101 and the second sliding hole 301, so that while ensuring the normal use of the positioning mechanism 12, the magnetic isolation plate 11 is used to avoid the excessive magnetic force generated by the electromagnetic bearing seat 203 from affecting the battery main body 5 when the battery is replaced, and the excessive magnetic force is avoided from causing the battery main body 5 to be pressed down and affecting the replacement operation, so as to ensure the effectiveness of the actual quick battery replacement of the device.

[0050] Embodiment 2

[0051] Embodiment 2 includes all the structures and methods of embodiment 1, and refers to Figures 1-8 The battery quick replacement device of the freight unmanned aerial vehicle further includes that the battery main body 5 is provided with a battery mounting box with a top opening, and the inside of the battery mounting box is loaded with a battery, the top opening of the battery mounting box is detachably connected with a cover plate 502, the outer walls of both ends of the top of the battery mounting box are both fixed with electrode sheets 503, the side walls of the battery mounting box facing the front and back of the two openings of the installation cavity 4 are set to the left and right sides, the side walls of the battery mounting box adhering to the inner walls of the left and right sides of the installation cavity 4 are set to the left and right sides, the battery mounting box extends towards the front and back of the two sides, the bottoms of the left and right sides of the battery mounting box are both provided with limiting grooves 501, the bottom of the battery mounting box is provided with a positioning groove, the top of the outer walls of the left and right sides of the battery mounting box is both provided with vertically and equidistantly distributed communication grooves 504, the communication grooves 504 extend and are penetratingly arranged towards the front and back of the two ends, the inner walls of the communication grooves 504 are fixed with horizontally and equidistantly distributed heat-conducting sheets 505, the heat-conducting sheets 505 are penetratingly arranged, and the communication grooves 504 and the distributed heat-conducting sheets 505 penetratingly arranged at the left and right sides of the battery main body 5 are used to further enhance the actual heat dissipation effect on the battery in cooperation with the reciprocating positioning member 1201 at the bottom.

[0052] Embodiment 3

[0053] Embodiment 3 includes all the structures and methods of embodiment 1, and refers to Figures 1-7The application discloses a battery replacement method for a cargo unmanned aerial vehicle, and adopts the cargo unmanned aerial vehicle battery replacement device, and is characterized by comprising a unmanned aerial vehicle main body 1 and a battery replacement platform 2. The bottom of the unmanned aerial vehicle main body 1 is provided with a mounting cavity 4 capable of extracting a battery from an end portion. Limiting mechanisms 9 are arranged on both sides of the mounting cavity 4 and are used for limiting and fixing the battery. A vertical telescopic mechanism 7 is arranged in contact with the limiting mechanisms 9 in a vertical direction. The battery replacement platform 2 is provided with an electromagnetic plate. When the battery is replaced, the unmanned aerial vehicle is landed on the electromagnetic plate. After power supply, the magnetic property of the electromagnetic plate is used to assist in stabilizing the unmanned aerial vehicle. The magnetic property is used to move the vertical telescopic mechanism 7 to loosen the limiting mechanisms 9 on both sides of the battery. After the battery replacement is completed, the vertical telescopic mechanism 7 and the limiting mechanisms 9 are automatically reset to lock the replaced battery.

[0054] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of the above should be covered within the protection scope of the present application.

Claims

1. A cargo drone battery quick replacement device, comprising a drone main body and a battery replacement platform, characterized in that, The bottom of the unmanned aerial vehicle body is provided with a battery mounting seat, and a plurality of mounting cavities penetratingly arranged are formed in one end of the battery mounting seat. A battery body is placed in the mounting cavities and can be taken out from the opening. The bottom of the inner wall of the two sides of the mounting cavities is slidably connected with a limiting mechanism horizontally and equidistantly distributed. The side of the limiting mechanism away from the mounting cavities is slidably connected with a vertical telescopic mechanism. The middle position of the top of the battery replacement platform is provided with an electromagnetic bearing seat. The electromagnetic bearing seat is magnetically attracted to the bottom of the battery mounting seat after being electrified. The magnetism of the electromagnetic bearing seat after being electrified is magnetically repelled from the vertical telescopic mechanism to compress the vertical telescopic mechanism upward. When the vertical telescopic mechanism is compressed upward, the limiting mechanism slides to the side close to the vertical telescopic mechanism and separates from the battery body. The two sides of the unmanned aerial vehicle body are provided with support frames and cargo clamping jaws. The bottom end of the vertical telescopic mechanism is connected with a magnetic block. The limiting mechanism and the vertical telescopic mechanism are connected with a second spring obliquely arranged. The second spring is inclined downward away from the limiting mechanism. The magnetism between the electromagnetic bearing seat after being electrified and the magnetic block is magnetically repelled. The two ends of the top of the battery replacement platform are respectively provided with a battery pushing mechanism and a battery storage mechanism. The top of the outer wall of the two ends of the battery replacement platform is fixedly provided with a first electric guide rail, and the top of the first electric guide rail is connected with a second electric guide rail. The first electric guide rail and the second electric guide rail are arranged vertically. The top of the second electric guide rail is connected with a rotating seat. The bottom of the battery pushing mechanism and the battery storage mechanism is respectively connected with the top of the two rotating seats. The end of the battery pushing mechanism and the battery storage mechanism is provided with a cavity matched with the battery body. The cavity of the battery pushing mechanism is provided with a pushing mechanism. The pushing mechanism is provided with an electric push rod and a push plate. The electric push rod is extended and retracted to move the push plate horizontally in the cavity to push the battery. The two sides of the battery mounting seat located in the mounting cavities are provided with two end-penetrating connecting cavities. The vertical telescopic mechanism is provided with a fixed rod fixed to the top inner wall of the connecting cavity. The fixed rod is located away from the side of the corresponding position mounting cavity. The bottom of the outer wall of the fixed rod is slidably connected with a two-end-opened fixed tube. The bottom end of the fixed tube is fixedly provided with a magnetic block. The first spring is connected between the bottom end of the fixed rod and the magnetic block. The first spring is slidably sleeved in the inside of the fixed tube. The bottom of the connecting cavity is provided with a through slot corresponding to the position of the magnetic block. The inner wall of the through slot is slidably connected with the outer wall of the magnetic block. The outer wall of the fixed tube close to the side of the mounting cavity is fixedly provided with a fixed block in contact with the limiting mechanism. The fixed block is arranged in a hemispherical structure arched away from the fixed tube. The embedding groove is arranged at the position corresponding to the limiting mechanism on the side wall of the installation cavity, and the limiting mechanism is provided with a limiting piece in sliding connection with the embedding groove. The limiting piece extends vertically upward. The bottom of the outer wall of the battery body on both sides is provided with a limiting groove at the position corresponding to the limiting piece. The bottom of the inner wall of one side of the embedding groove is provided with a through hole. The outer wall of the limiting piece is provided with a connecting rod in sliding connection with the inner wall of the through hole at the position corresponding to the through hole. The end of the connecting rod away from the limiting piece is fixedly provided with a connecting block. The outer wall of the connecting block is in sliding connection with the bottom inner wall of the connecting cavity. The connecting block is in the shape of a circular truncated cone. The outer diameter of the connecting block on the side close to the vertical extension mechanism gradually increases away from the vertical extension mechanism. The circumferential outer wall of the connecting block is in the shape of an arc outwardly arched. The top of the circumferential outer wall of the connecting block is in sliding contact with the bottom of the spherical outer wall of the fixing block. The second spring is fixed between the connecting block and the fixing tube.

2. The express delivery drone battery quick replacement device of claim 1, wherein, The installation block is embedded and fixed at the position above the installation cavity at the two ends of the battery mounting seat. The end surface of the installation block is provided with a plurality of infrared sensors distributed in a ring shape. The battery pushing mechanism and the battery storage mechanism are provided with infrared emitters matched with the infrared sensors at the positions corresponding to the infrared sensors. A microprocessor is arranged on the battery replacement platform. The infrared emitters are connected with the signal input end of the microprocessor through signal lines. The alignment and deviation between the infrared emitters and the corresponding position infrared sensors are transmitted to the microprocessor to control the first electric guide rail, the second electric guide rail and the rotating seat by using the microprocessor.

3. The express delivery drone battery quick replacement device of claim 1, wherein, The bottom of the installation cavity is provided with a plurality of positioning mechanisms distributed along the side edges. The positioning mechanisms are provided with positioning pieces extending towards the two ends. The cross section of the positioning piece is in the shape of a trapezoid with the width gradually decreasing upward. The bottom of the battery body is provided with a positioning groove matched with the positioning piece. The positioning groove penetrates at both ends. The bottom inner wall of the installation cavity is provided with a moving groove in sliding connection with the bottom ends of the outer walls of the positioning pieces at the positions corresponding to the positioning pieces. The bottom of the moving groove is provided with a through hole. The third spring is connected between the bottom outer wall of the positioning piece and the bottom inner wall of the moving groove. The bottom of the positioning piece is fixedly provided with a sliding rod in sliding connection with the inner wall of the through hole.

4. The express delivery drone battery quick replacement device of claim 3, wherein, The top of the positioning piece is fixedly provided with a rubber sleeve. The top of the outer wall of the rubber sleeve on both sides is provided with a plurality of adsorption grooves horizontally and equidistantly distributed. The inner wall of the adsorption groove is in the shape of an arc. The top of the outer wall of one end of the positioning piece and the bottom ends of both sides are provided with first through grooves. The inner wall of the rubber sleeve is provided with second through grooves at the positions corresponding to the first through grooves. The first through grooves and the second through grooves at the corresponding positions form a cylindrical structure.

5. The express delivery drone battery quick replacement device of claim 3, wherein, The outer wall of the battery mounting seat is provided with a penetratingly arranged fixing groove at the position below the moving groove at one end. The inner wall of the fixing groove is fixedly provided with a magnetic shielding plate. The positioning piece and the sliding rod are made of magnetic shielding materials. The bottom end of the sliding rod is fixedly provided with a magnetic sheet. The outer wall of the magnetic shielding plate is provided with a penetratingly arranged first sliding hole at the position corresponding to the sliding rod. The bottom of the battery mounting seat is provided with a penetratingly arranged second sliding hole at the position corresponding to the sliding rod. The outer wall of the sliding rod is in sliding connection with the inner walls of the first sliding hole and the second sliding hole.

6. The express delivery drone battery quick replacement device of claim 1, wherein, The battery body is provided with a top-opened battery mounting box, and the inside of the battery mounting box is loaded with a battery; the top opening of the battery mounting box is detachably connected with a cover plate; the two end positions of the top outer wall of the battery mounting box are fixed with electrode sheets; the side wall of the battery mounting box facing the two end openings of the mounting cavity is set as front and back sides; the side wall of the battery mounting box adhering to the two side inner walls of the mounting cavity is set as left and right sides; the battery mounting box extends towards the front and back sides; the bottom of the left and right sides of the battery mounting box is provided with a limiting groove; the bottom of the battery mounting box is provided with a positioning groove; the top of the left and right outer walls of the battery mounting box is provided with vertically distributed communication grooves; the communication grooves extend and penetrate towards the front and back sides of the two ends; the inner wall of the communication grooves is fixed with horizontally distributed heat conduction sheets; and the heat conduction sheets penetrate.

7. A cargo drone battery replacement method, using the cargo drone battery quick replacement device of any one of claims 1-6, characterized in that, The unmanned aerial vehicle body and the battery replacement platform are included; the bottom of the unmanned aerial vehicle body is provided with a mounting cavity from which the battery can be extracted; the two sides of the mounting cavity are provided with a limiting mechanism for limiting and fixing the battery, and a vertical telescopic mechanism which is in contact with the limiting mechanism and telescopes in the vertical direction; the battery replacement platform is provided with an electromagnetic plate; when the battery is replaced, the unmanned aerial vehicle is landed on the electromagnetic plate; after being powered on, the magnetic property of the electromagnetic plate is used to assist in stabilizing the unmanned aerial vehicle; the magnetic property is used to move the vertical telescopic mechanism to loosen the limiting mechanism on the two sides of the battery; after the battery replacement is completed, the vertical telescopic mechanism and the limiting mechanism are automatically reset to lock the replaced battery.

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