Unmanned aerial vehicle hanging emergency releasing device

Abstract

The invention discloses an unmanned aerial vehicle hanging emergency throwing device, and relates to the technical field of unmanned aerial vehicle throwing, the unmanned aerial vehicle hanging emergency throwing device comprises a mounting frame, throwing frames and a hanging piece used for hanging materials, the two throwing frames are symmetrically arranged on the two sides of the lower portion of the mounting frame, and the upper portion of the mounting frame is used for being connected with an unmanned aerial vehicle bolt assembly; the throwing frame comprises an outer frame, an inner frame, two arc-shaped teeth and a gear, the inner frame is arranged in the outer frame and is concentric with the outer frame, the two arc-shaped teeth are symmetrically arranged on the two sides of the outer arc surface of the inner frame in a sliding mode, a driving mechanism is arranged in the inner frame, and the two arc-shaped teeth are driven by the driving mechanism to slide; the multiple gears are arranged between the inner frame and the outer frame in a sliding mode. According to the unmanned aerial vehicle, the multiple materials are assembled on the gears through the hanging pieces, the multiple gears are arranged in the throwing frame, multi-point-position throwing can be conducted by carrying many materials, the unmanned aerial vehicle can go to the next place to be thrown after one-time throwing is completed, the round-trip time of the unmanned aerial vehicle is shortened, and the throwing efficiency is improved to a certain degree.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicle delivery, in particular to an unmanned aerial vehicle hanging emergency delivery device. Background Art

[0002] The drone-mounted emergency delivery device is a device usually used to carry and deliver supplies, rescue equipment or other items. It is usually installed on the drone's carrying platform. It can accurately deliver items from the air to a designated location through remote control or automation. It is widely used in emergency rescue, environmental monitoring, post-disaster reconstruction and other fields.

[0003] For example, "CN115593631B" is a dual-redundancy UAV hanging and delivery device and its working method. The delivery device includes a hook box assembly, which includes a box body and a hook rotatably arranged on the box body, a force transmission crank arm and a cam. Both the normal delivery assembly and the emergency delivery assembly control the movement of the cam. The cam controls the swing of the driving end of the force transmission crank arm, and the action end of the force transmission crank arm cooperates with the limit end of the hook. The working method adopts the above-mentioned dual-redundancy UAV hanging and delivery device, including a locked state, normal delivery and emergency delivery. The beneficial effects of the present invention: multiple modes of delivery of hanging UAV cargo can be realized; accurate delivery can be achieved through ground control; autonomous identification and delivery can be achieved without human intervention; the operating torque is small and the mounting is large; there are emergency safety control measures, and the reliability of task completion is higher;

[0004] However, in the prior art, drones usually only carry and deliver a single type of material when delivering supplies, and need to return and reload after completing a delivery. This method limits the operating efficiency of drones, especially in emergency rescue situations, as frequent returns and reloading increase the number of flights and operating time. Summary of the invention

[0005] In view of the above existing problems, the present invention is proposed.

[0006] The purpose of the present invention is to solve the problem in the prior art that after completing a delivery, the delivery needs to be returned and reloaded, which reduces the delivery efficiency to a certain extent.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] On the one hand, the present invention provides an emergency delivery device for hanging unmanned aerial vehicles, which includes a mounting frame, a delivery frame and a hanger for hanging materials, wherein the delivery frame is provided with two and symmetrically arranged on both sides below the mounting frame, and the top of the mounting frame is used for bolt assembly and connection with the unmanned aerial vehicle, and the delivery frame includes an outer frame, an inner frame, arc-shaped teeth and gears, the inner frame is arranged inside the outer frame and concentrically arranged with the outer frame, the arc-shaped teeth are provided with two and symmetrically slidably arranged on both sides of the outer arc surface of the inner frame, and a driving mechanism is provided inside the inner frame, and the two arc-shaped teeth are driven by the driving mechanism respectively Sliding, the gear is provided with multiple and slidingly arranged between the inner frame and the outer frame, the outer wall of the gear is meshed with the arc-shaped tooth, the arc-shaped tooth includes an arc-shaped plate and a tooth block, the arc-shaped plate is provided with multiple inner grooves on the side facing the outer frame, the tooth block is evenly provided with multiple, the tooth block is adjustable and slidable in the inner groove, the two coaxial gears on the two delivery racks are respectively detachably assembled with the pendant, the other end of the pendant is used for assembly and connection with materials, the upper and lower parts of the outer frame are respectively provided with a feed trough and a discharge trough, and the lower end of the arc-shaped plate is provided with a baffle.

[0009] Furthermore, the length of the arc plate is less than half of the circumference of the inner frame, and the baffle is slidably arranged on the inner wall of the end face of the outer frame when the upper ends of the two arc plates are in a state of abutting each other. Spacers are provided between adjacent gears. By making the length of the arc plate less than half of the circumference of the inner frame, the arc plate is facilitated to move up and down, thereby driving the gear to move between the inner frame and the outer frame. The spacers are provided to prevent the two gears from being too close to each other, causing the adjacent gears to mesh.

[0010] Furthermore, a connecting shaft is detachably provided between the two symmetrically arranged gears, a mounting block is slidably provided at the center position of the gear, a slot is provided above one end of the mounting block, and blocks that are engaged with the slot are symmetrically provided at both ends of the connecting shaft. When the connecting shaft and the gear are meshed, the blocks can be engaged with the slot. When the assembled gears are installed in the delivery rack, the two gears can be kept in symmetrical positions. After the gear installation is completed, the connecting shaft can be slid out.

[0011] Furthermore, an arc-shaped frame is slidably provided at the edge of the inner arc surface of the inner frame, side grooves are symmetrically provided on both sides of the inner frame, linkage bars are symmetrically provided on both sides of the arc-shaped frame and are slidably provided with the side grooves, the linkage bars are assembled and connected with the end faces of the tooth blocks, a first cylinder is provided inside the delivery rack, the first cylinder is slidably connected to the arc-shaped frame, the direction of the inner groove is consistent with the pulling direction of the first cylinder, the linkage bar and the tooth block located at the upper end are not connected to each other, and when the tooth block needs to be retracted into the inner groove, the first cylinder is retracted to drive the arc-shaped frame away from the inner frame so that the linkage bar pulls the tooth block into the inner groove.

[0012] Furthermore, the driving mechanism includes a mounting seat and a second cylinder, and the driving mechanism is provided with two groups of arc plates on both sides for driving the sliding respectively, the mounting seat is arranged at the lower middle part of the inner arc surface of the inner frame, the lower end of the second cylinder is hinged on the mounting seat, and the upper end of the second cylinder is hinged to the upper middle part of the arc plate through a connecting block, and the inner frame is provided with an arc groove which is slidably arranged with the connecting block, and by driving the second cylinder, the arc plate and the inner frame are driven to engage and slide, thereby realizing the unloading of the gear.

[0013] Furthermore, a recovery rack is connected to the delivery rack below the discharge chute, an access door is provided on one side below the recovery rack, and a buffer rack is provided on the upper part of the recovery rack. The recovery rack is used to recover the gears that are separated from the materials after delivery for next use.

[0014] Furthermore, the two sides of the buffer rack are assembled and connected with the two sides of the inner wall of the recovery rack, a bracket is provided under the buffer rack, and buffer supports are rotatably provided on both sides of the buffer rack. The bottom of the buffer support is assembled and connected with the side walls of the bracket through a first spring. When a gear or a spacer block falls onto the buffer support, the buffer support on one side is squeezed to unfold under the action of gravity, and falls from this side into the recovery rack, and the first spring is reset after falling.

[0015] Furthermore, a power supply is provided on the recovery rack, a conductive sheet electrically connected to the power supply is provided above the buffer rack, and a conductive strip is provided at the edge of the gear, and the conductive strip cooperates with the conductive sheet to separate the pendant from the gear.

[0016] Furthermore, an assembly groove is provided at the center position of one side of the gear, and the mounting block is slidably arranged in the assembly groove. A strip groove and a spiral groove are provided inside the assembly groove. One end of the strip groove is connected to the spiral groove and the number of spiral turns of the spiral groove is 0.5 turns. The spiral groove is arranged close to the mounting block. A slider is provided on the mounting block that is slidably arranged with the strip groove and the spiral groove. One end of the assembly groove is assembled and connected to the mounting block through a strong spring. A limit block is provided above the outer end of the mounting block, and the slot is arranged on the limit block. One end of the hanger is slidably sleeved on the mounting block. The limit block is used to ensure stability when the hanger and the mounting block are sleeved, so as to achieve an anti-slip effect.

[0017] Furthermore, a disassembly groove is provided above the assembly groove, an insertion strip is provided in the disassembly groove through a second spring, a slot is provided on the mounting block and is slidably engaged with the insertion strip, a side of the lower end of the insertion strip away from the limit block is inclined, a first magnetic block is provided at the upper end of the insertion strip, a second magnetic block is provided at the upper end of the slot and is adsorbed to the first magnetic block, one end of the conductive strip is assembled and connected to the second magnetic block, and when the material is put in, the gear falls onto the buffer rack, the conductive strip on the edge of the gear contacts the conductive sheet, the second magnetic block is energized, the second magnetic block generates magnetism and is adsorbed to the first magnetic block, wherein The first magnetic block is a strong magnetic magnet. The first magnetic block drives the insertion strip to quickly retract into the disassembly groove. The installation block loses the limit of the insertion strip and quickly rebounds into the assembly groove under the strong pulling force of the strong spring. During the pullback process, due to the limitation of the slider, the strip groove and the spiral groove, the slider first passes through 0.5 spiral grooves, so that the installation block quickly rotates 180 degrees, and the limit block is rotated downward to avoid the limit block blocking the fall of the pendant during retraction. When passing through the strip groove, the installation block directly retracts to the innermost end of the assembly groove. The installation block is set at the outer end and is completely separated from the pendant. The pendant loses support and falls freely to the ground with the materials.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention assembles multiple materials on gears through pendants, and multiple gears are set in the delivery rack, so that more materials can be carried for multi-point delivery. After one delivery is completed, it can go to the next location for delivery, reducing the round-trip time of the drone and improving the delivery efficiency to a certain extent.

[0020] 2. The present invention alternately releases materials on both sides of the release rack to avoid unstable flight caused by one side of the drone being too heavy and the other side being too light, thereby ensuring flight safety.

[0021] 3. The present invention provides a limit block to ensure stability when the hanger and the mounting block are installed, thereby achieving an anti-slip effect.

[0022] 4. When the present invention releases materials, the gear falls onto the buffer rack, and the conductive strip on the edge of the gear contacts the conductive sheet, and the second magnetic block is energized. The second magnetic block generates magnetism and is adsorbed to the first magnetic block, wherein the first magnetic block is a strong magnetic magnet. The first magnetic block drives the insertion strip to quickly retract into the disassembly groove, and the mounting block loses the limit of the insertion strip and quickly rebounds into the assembly groove under the strong pulling force of the strong spring. During the pulling back process, due to the limitation of the slider, the strip groove and the spiral groove, the slider first passes through 0.5 spiral grooves, so that the mounting block quickly rotates 180 degrees, and the limit block is rotated downward to avoid the limit block blocking the falling of the hanger during retraction. When passing through the strip groove, the mounting block directly retracts to the innermost end of the assembly groove, and the mounting block is arranged at the outer end and is completely separated from the hanger, and the hanger loses support and falls freely to the ground with the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 A three-dimensional diagram of an emergency delivery device suspended by a drone provided by the present invention;

[0025] Figure 2 A schematic diagram of the assembly of a delivery frame and a hanging part of an emergency delivery device for hanging by a drone provided by the present invention;

[0026] Figure 3 A schematic diagram of the assembly of a delivery frame and a recovery frame of a drone-mounted emergency delivery device provided by the present invention;

[0027] Figure 4 A schematic diagram of the assembly structure of the inner frame and arc-shaped teeth of a drone hanging emergency delivery device provided by the present invention;

[0028] Figure 5 A schematic diagram of the assembly structure of an arc-shaped frame and arc-shaped teeth of an emergency delivery device for hanging by a drone provided by the present invention;

[0029] Figure 6 A schematic diagram of the positions of gears and buffer supports of a drone hanging emergency delivery device provided by the present invention;

[0030] Figure 7 A schematic diagram of the assembly of gears and mounting blocks of a drone hanging emergency delivery device provided by the present invention;

[0031] Figure 8 A drone hanging emergency delivery device provided by the present invention Figure 7 A schematic diagram of the structure enlargement in the middle;

[0032] Fig. 9 A schematic diagram of the internal structure of gears of a drone hanging emergency delivery device provided by the present invention.

[0033] Legend:

[0034] 1. Mounting frame; 2. Putting frame; 3. Hanging piece; 411. Outer frame; 412. Inner frame; 413. Arc teeth; 4131. Arc plate; 4132. Tooth block; 4133. Inner groove; 414. Gear; 511. Feeding groove; 512. Discharging groove; 6. Baffle; 7. Spacer; 811. Connecting shaft; 812. Mounting block; 813. Slot; 814. Slot; 911. Arc frame; 912. Side groove; 913. Linkage bar; 914. First cylinder; 921. Mounting seat; 922. Second cylinder; 923, connecting block; 924, arc groove; 931, recovery rack; 932, access door; 933, buffer rack; 941, bracket; 942, buffer support; 943, first spring; 951, conductive sheet; 952, conductive strip; 961, assembly groove; 962, spiral groove; 963, slider; 964, strong spring; 965, limit block; 966, strip groove; 971, disassembly groove; 972, second spring; 973, insert strip; 974, slot; 975, first magnetic block; 976, second magnetic block. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, as referred to herein, "one embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] See also Figure 1-Figure 9The present invention provides a technical solution: an emergency delivery device for hanging unmanned aerial vehicles, comprising a mounting frame 1, a delivery frame 2 and a hanger 3 for hanging materials, the delivery frame 2 is provided with two and symmetrically arranged on both sides below the mounting frame 1, the top of the mounting frame 1 is used for bolt assembly and connection with the unmanned aerial vehicle, the delivery frame 2 comprises an outer frame 411, an inner frame 412, an arc-shaped tooth 413 and a gear 414, the inner frame 412 is arranged inside the outer frame 411 and is concentrically arranged with the outer frame 411, the arc-shaped tooth 413 is provided with two and symmetrically slidably arranged on both sides of the outer arc surface of the inner frame 412, a driving mechanism is arranged inside the inner frame 412, the two arc-shaped teeth 413 are respectively driven to slide by the driving mechanism, and the gear 414 is provided There are multiple gears 414 that are slidably arranged between the inner frame 412 and the outer frame 411. The outer wall of the gear 414 is meshed with the arc-shaped tooth 413. The arc-shaped tooth 413 includes an arc-shaped plate 4131 and a tooth block 4132. The arc-shaped plate 4131 is provided with multiple inner grooves 4133 on the side facing the outer frame 411. The tooth block 4132 is evenly provided with multiple gears. The tooth block 4132 is adjustable and slidable in the inner groove 4133. The two coaxial gears 414 on the two delivery racks 2 are respectively detachably assembled with the hanger 3, and the other end of the hanger 3 is used for assembly and connection with materials. A feed trough 511 and a discharge trough 512 are respectively provided above and below the outer frame 411, and a baffle 6 is provided at the lower end of the arc-shaped plate 4131.

[0039] like Figure 1-Figure 9 As shown, the length of the arc plate 4131 is less than half of the circumference of the inner frame 412, and the baffle 6 is slidably arranged on the inner wall of the end face of the outer frame 411 when the upper ends of the two arc plates 4131 are in abutment with each other. A spacer block 7 is provided between adjacent gears 414. By making the length of the arc plate 4131 less than half of the circumference of the inner frame 412, the arc plate 4131 is facilitated to move up and down, thereby driving the gear 414 to move between the inner frame 412 and the outer frame 411. By providing the spacer block 7, the two gears 414 are prevented from being too close to each other, causing the adjacent gears 414 to mesh.

[0040] like Figure 1-Figure 9 As shown, a connecting shaft 811 is detachably provided between two symmetrically arranged gears 414, a mounting block 812 is slidably provided at the center of the gear 414, a slot 813 is provided above one end of the mounting block 812, and blocks 814 that are engaged with the slot 813 are symmetrically provided at both ends of the connecting shaft 811. When the connecting shaft 811 is meshed with the gear 414, the blocks 814 are engaged with the slot 813. When the assembled gear 414 is installed in the delivery rack 2, the two gears 414 can be kept in a symmetrical position. After the installation of the gear 414 is completed, the connecting shaft 811 can be slid out.

[0041] like Figure 1-Figure 9As shown, an arc-shaped frame 911 is slidably provided at the edge of the inner arc surface of the inner frame 412, and side grooves 912 are symmetrically provided on both sides of the inner frame 412. Linkage bars 913 slidably provided with the side grooves 912 are symmetrically provided on both sides of the arc-shaped frame 911. The linkage bar 913 is assembled and connected with the end face of the tooth block 4132. A first cylinder 914 is provided inside the delivery rack 2, and the first cylinder 914 is slidably connected with the arc-shaped frame 911. The direction of the inner groove 4133 is consistent with the pulling direction of the first cylinder 914. The linkage bar 913 and the tooth block 4132 at the upper end are not connected to each other. When the tooth block 4132 needs to be retracted into the inner groove 4133, the first cylinder 914 is retracted to drive the arc-shaped frame 911 away from the inner frame 412 so that the linkage bar 913 pulls the tooth block 4132 into the inner groove 4133.

[0042] like Figure 1-Figure 9 As shown, the driving mechanism includes a mounting seat 921 and a second cylinder 922. The driving mechanism is provided with two groups of arc plates 4131 on both sides that respectively drive the sliding. The mounting seat 921 is arranged in the middle and lower part of the inner arc surface of the inner frame 412. The lower end of the second cylinder 922 is hingedly arranged on the mounting seat 921. The upper end of the second cylinder 922 is hingedly arranged with the middle and upper part of the arc plate 4131 through a connecting block 923. The inner frame 412 is provided with an arc groove 924 that is slidably arranged with the connecting block 923. By driving the second cylinder 922, the arc plate 4131 is driven to engage and slide with the inner frame 412 to realize the unloading of the gear 414.

[0043] like Figure 1-Figure 9 As shown, a recovery rack 931 is connected to the delivery rack 2 below the discharge chute 512, an access door 932 is provided on the lower side of the recovery rack 931, and a buffer rack 933 is provided on the upper part of the recovery rack 931. The recovery rack 931 is used to recover the gear 414 that is separated from the materials after delivery for next use.

[0044] like Figure 1-Figure 9 As shown, both sides of the buffer frame 933 are assembled and connected with both sides of the inner wall of the recovery frame 931, a bracket 941 is provided below the buffer frame 933, and buffer supports 942 are rotatably provided on both sides of the buffer frame 933. The bottom of the buffer support 942 is assembled and connected with the side wall of the bracket 941 through a first spring 943. When the gear 414 or the spacer block 7 falls onto the buffer support 942, the buffer support 942 on one side is squeezed to unfold under the action of gravity, and falls from this side into the recovery frame 931, and the first spring 943 is reset after falling.

[0045] like Figure 1-Figure 9 As shown, a power supply is provided on the recovery frame 931, a conductive sheet 951 electrically connected to the power supply is provided above the buffer frame 933, and a conductive strip 952 is provided at the edge of the gear 414. The conductive strip 952 cooperates with the conductive sheet 951 to separate the pendant 3 from the gear 414.

[0046] like Figure 1-Figure 9 As shown, an assembly groove 961 is provided at the center position of one side of the gear 414, and the mounting block 812 is slidably arranged in the assembly groove 961. A strip groove 966 and a spiral groove 962 are provided inside the assembly groove 961. One end of the strip groove 966 is connected to the spiral groove 962 and the number of spiral turns of the spiral groove 962 is 0.5 turns. The spiral groove 962 is arranged close to the mounting block 812, and a slider 963 is provided on the mounting block 812, which is slidably arranged with the strip groove 966 and the spiral groove 962. One end of the assembly groove 961 is assembled and connected with the mounting block 812 through a strong spring 964. A limit block 965 is provided above the outer end of the mounting block 812, and the slot 813 is provided on the limit block 965. One end of the hanger 3 is slidably sleeved on the mounting block 812. The limit block 965 is provided to ensure stability when the hanger 3 and the mounting block 812 are sleeved, so as to achieve an anti-slip effect.

[0047] like Figure 1-Figure 9 As shown, a disassembly groove 971 is connected above the assembly groove 961, and an insertion strip 973 is provided in the disassembly groove 971 through a second spring 972. A slot 974 is provided on the mounting block 812 to be slidably engaged with the insertion strip 973. The lower end of the insertion strip 973 is inclined away from the limit block 965. A first magnetic block 975 is provided at the upper end of the insertion strip 973, and a second magnetic block 976 is provided at the upper end of the slot 974 to be mutually adsorbed with the first magnetic block 975. One end of the conductive strip 952 is assembled and connected with the second magnetic block 976. When the material is put in, the gear 414 falls onto the buffer frame 933, and the conductive strip 952 on the edge of the gear 414 contacts the conductive sheet 951, and the second magnetic block 976 is energized, so that the second magnetic block 976 generates magnetism and is adsorbed with the first magnetic block 975. 975 is a strong magnetic magnet. The first magnetic block 975 drives the insertion strip 973 to quickly retract into the disassembly groove 971. The installation block 812 loses the limit of the insertion strip 973 and quickly rebounds to the assembly groove 961 under the strong pulling force of the strong spring 964. During the pullback process, due to the restrictions of the slider 963, the strip groove 966 and the spiral groove 962, the slider 963 first passes through 0.5 spiral grooves 962, so that the installation block 812 quickly rotates 180 degrees, and the limit block 965 is rotated to the bottom to prevent the limit block 965 from blocking the hanging part 3 from falling off during retraction. When passing through the strip groove 966, the installation block 812 directly retracts to the innermost end of the assembly groove 961. The installation block 812 is set at the outer end and is completely separated from the hanging part 3. The hanging part 3 loses support and falls freely to the ground with the materials.

[0048] Working principle: when placing materials on the drone, first retract the tooth block 4132 on the arc plate 4131 into the inner groove 4133, and link the two gears 414 through the connecting shaft 811, and then put the two gears 414 from the feed trough 511 into the space between the inner frame 412 and the outer frame 411, put in the gear 414 and then put in the spacer 7, repeat the above steps to put in multiple gears 414, after the placement is completed, the tooth block 4132 removes the inner groove 4133 and meshes with the gear 414 and removes the connecting shaft 811, take the materials to be delivered, assemble and connect one end of the hanger 3 with the end face of the material, which can be achieved by hooking, and the other end of the hanger 3 is assembled and connected with the gear 414. After the drone takes off to a designated location, the driving mechanism is started, driving the arc plate 4131 on one side to slide downward. Since the gear 414 is meshed with the tooth block 4132, it drives the gear 414 below to slide out of the discharge trough 512, and slides out. After being released, the pendant 3 is separated from the gear 414, and the pendant 3 falls to the designated location with the free fall of the materials, and the gear 414 and a spacer block 7 fall into the recovery rack 931 for recovery, and the driving mechanism drives the arc plate 4131 on this side to move up and reset, driving the other gears 414 on this side to move up accordingly, and shrinking the tooth block 4132 into the inner groove 4133. At this time, the gear 414 lacks support and slowly slides downward under the action of gravity until the gear 414 contacts the baffle 6, and the tooth block 4132 is removed from the inner groove 4133 again to engage with the gear 414, thereby achieving a complete delivery of a material. The UAV flies to the next location and repeats the above steps to deliver the next material. The delivery of the second material is achieved by driving the arc plate 4131 on the other side to drive the materials below the other side to fall and deliver them. By alternately delivering materials on both sides of the delivery rack 2, it is avoided that one side of the UAV is too heavy and the other side is too light, causing unstable flight, thereby ensuring flight safety.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An emergency delivery device for hanging from a drone, characterized in that: The invention comprises a mounting frame (1), a delivery frame (2) and a hanging part (3) for hanging materials, wherein the delivery frame (2) is provided with two hanging parts symmetrically arranged on both sides below the mounting frame (1), and the top of the mounting frame (1) is used for bolt assembly connection with a drone, and the delivery frame (2) comprises an outer frame (411), an inner frame (412), arc-shaped teeth (413) and a gear (414), wherein the inner frame (412) is arranged inside the outer frame (411) and is arranged concentrically with the outer frame (411), wherein the arc-shaped teeth (413) are provided with two and are symmetrically slidably arranged on both sides of the outer arc surface of the inner frame (412), wherein a driving mechanism is provided inside the inner frame (412), wherein the two arc-shaped teeth (413) are respectively driven to slide by the driving mechanism, and wherein the gear (414) is provided with a plurality of gears slidably arranged between the inner frame (412) and the outer frame (412). The outer wall of the gear (414) is meshed with the arc-shaped tooth (413), and the arc-shaped tooth (413) comprises an arc-shaped plate (4131) and a tooth block (4132). The arc-shaped plate (4131) is provided with a plurality of inner grooves (4133) on the side facing the outer frame (411). The tooth block (4132) is evenly provided with a plurality of inner grooves (4133). The tooth block (4132) is adjustable and slidably arranged in the inner grooves (4133). The two gears (414) at coaxial positions on the two delivery racks (2) are respectively detachably assembled with the hanging member (3). The other end of the hanging member (3) is used for assembly and connection with materials. A feed trough (511) and a discharge trough (512) are respectively provided above and below the outer frame (411). A baffle (6) is provided at the lower end of the arc-shaped plate (4131).

2. The drone hanging emergency delivery device according to claim 1, characterized in that: The length of the arc-shaped plate (4131) is less than half of the circumference of the inner frame (412); when the upper ends of the two arc-shaped plates (4131) are in abutment with each other, the baffle (6) and the inner wall of the end surface of the outer frame (411) are slidably arranged; and a spacer (7) is provided between adjacent gears (414).

3. The drone hanging emergency delivery device according to claim 2, characterized in that: A connecting shaft (811) is detachably provided between the two symmetrically arranged gears (414); a mounting block (812) is slidably provided at the center of the gear (414); a clamping groove (813) is provided above one end of the mounting block (812); and clamping blocks (814) that are clamped with the clamping groove (813) are symmetrically provided at both ends of the connecting shaft (811).

4. The drone hanging emergency delivery device according to claim 3, characterized in that: An arc frame (911) is slidably provided at the edge of the inner arc surface of the inner frame (412), side grooves (912) are symmetrically provided on both sides of the inner frame (412), linkage bars (913) slidably provided with the side grooves (912) are symmetrically provided on both sides of the arc frame (911), the linkage bars (913) are assembled and connected with the end faces of the tooth blocks (4132), a first cylinder (914) is provided inside the delivery rack (2), the first cylinder (914) is slidably connected with the arc frame (911), the direction of the inner groove (4133) is consistent with the pulling direction of the first cylinder (914), and the linkage bar (913) and the tooth blocks (4132) located at the upper end are not connected to each other.

5. The drone hanging emergency delivery device according to claim 4, characterized in that: The driving mechanism comprises a mounting seat (921) and a second cylinder (922), and the driving mechanism is provided with two groups of arc plates (4131) on both sides for driving the sliding respectively, the mounting seat (921) is arranged at the middle and lower part of the inner arc surface of the inner frame (412), the lower end of the second cylinder (922) is hingedly arranged on the mounting seat (921), the upper end of the second cylinder (922) is hingedly arranged with the middle and upper part of the arc plate (4131) through a connecting block (923), and the inner frame (412) is provided with an arc groove (924) slidably arranged with the connecting block (923).

6. The drone hanging emergency delivery device according to claim 3, characterized in that: A recovery rack (931) is connected to the delivery rack (2) below the discharge chute (512), a storage and access door (932) is provided on one side below the recovery rack (931), and a buffer rack (933) is provided on the upper part of the recovery rack (931).

7. The drone hanging emergency delivery device according to claim 6, characterized in that: The two sides of the buffer frame (933) are assembled and connected with the two sides of the inner wall of the recovery frame (931); a bracket (941) is provided below the buffer frame (933); buffer supports (942) are rotatably provided on both sides of the buffer frame (933); and the buffer support (942) is assembled and connected with the side wall of the bracket (941) through a first spring (943) below.

8. The drone hanging emergency delivery device according to claim 7, characterized in that: A power source is provided on the recovery frame (931), a conductive sheet (951) electrically connected to the power source is provided above the buffer frame (933), and a conductive strip (952) is provided at the edge of the gear (414).

9. The drone hanging emergency delivery device according to claim 8, characterized in that: A mounting groove (961) is provided at the center of one side of the gear (414), and the mounting block (812) is slidably arranged in the mounting groove (961). A strip groove (966) and a spiral groove (962) are arranged inside the mounting groove (961). One end of the strip groove (966) is connected to the spiral groove (962), and the number of spiral turns of the spiral groove (962) is 0.5 turns. The spiral groove (962) is arranged close to the mounting block (812). The block (812) is provided with a sliding block (963) slidably arranged with the strip groove (966) and the spiral groove (962); one end of the assembly groove (961) is assembled and connected with the mounting block (812) through a strong spring (964); a limit block (965) is arranged above the outer end of the mounting block (812); the clamping groove (813) is arranged on the limit block (965); and one end of the hanger (3) is slidably sleeved on the mounting block (812).

10. The drone hanging emergency delivery device according to claim 9, characterized in that: A disassembly groove (971) is provided above the assembly groove (961), an insertion strip (973) is provided in the disassembly groove (971) via a second spring (972), a slot (974) is provided on the mounting block (812) and is slidably engaged with the insertion strip (973), a side of the lower end of the insertion strip (973) away from the limiting block (965) is inclined, a first magnetic block (975) is provided at the upper end of the insertion strip (973), a second magnetic block (976) is provided at the upper end of the slot (974) and is attracted to the first magnetic block (975), and one end of the conductive strip (952) is assembled and connected with the second magnetic block (976).

Images