Unmanned aerial vehicle double-arm unfolding device

Abstract

The utility model discloses a double-arm unfolding device of an unmanned aerial vehicle. The double-arm unfolding device comprises a spring box and a volute spiral spring, the spring box comprises a first box body and a second box body, a first installation position is arranged on the outer side of the first box body, a second installation position is arranged on the outer side of the second box body, the first box body is rotatably arranged on the second box body so that the relative position of the first installation position and the second installation position can be adjusted through rotation, and an installation cavity is formed between the first box body and the second box body. The spring box has a storage state and an unfolding state, in the storage state, the orientation of the first mounting position and the orientation of the second mounting position deviate from each other, and in the unfolding state, the orientation of the first mounting position is inclined to the orientation of the second mounting position; the volute spiral spring is mounted in the mounting cavity, the inner end of the volute spiral spring is fixed to the first box body, the outer end of the volute spiral spring is fixed to the second box body, and the volute spiral spring has elastic deformation enabling the spring box to move from the storage state to the unfolding state. According to the technical scheme, the structure of the unmanned aerial vehicle arm unfolding device can be simplified.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a device for deploying the dual arms of a UAV. Background Technology

[0002] Traditional drones need to take off from a safe area and then fly to the target area. Compared with traditional drones, current tube-launched drones are smaller, more portable, and launch from a launch tube, resulting in a higher initial velocity. Typically, tube-launched drones require folding their arms before launch and then unfolding them for flight after launch.

[0003] Existing drone arm deployment devices typically have one deployment device for every two drone arms. Each deployment device has two spiral springs that drive one arm to deploy. This requires a spiral spring structure that is the same number of drone arms, making the drone arm deployment device quite complex. Utility Model Content

[0004] The main purpose of this invention is to propose a dual-arm deployment device for unmanned aerial vehicles (UAVs), which aims to simplify the structure of the UAV arm deployment device.

[0005] To achieve the above objectives, the present invention proposes a dual-arm deployment device for unmanned aerial vehicles, comprising:

[0006] A spring box includes a first box body and a second box body. The first box body has a first mounting position on its outer side, and the second box body has a second mounting position on its outer side. Both the first and second mounting positions are used to mount the arms of a drone. The first box body is rotatably mounted on the second box body, allowing adjustment of the relative positions of the first and second mounting positions by rotation. A mounting cavity is provided between the first and second box bodies. The spring box has a retracted state and an unfolded state. In the retracted state, the orientations of the first and second mounting positions are opposite to each other. In the unfolded state, the orientation of the first mounting position is inclined relative to the orientation of the second mounting position.

[0007] A spiral spring is installed in the mounting cavity. The inner end of the spiral spring is fixed to the first housing, and the outer end of the spiral spring is fixed to the second housing. The spiral spring has elastic deformation that allows the spring box to move from the retracted state to the unfolded state.

[0008] Optionally, the first housing is provided with a first mounting hole, and the first mounting hole is provided with a first elastic element and a first limiting pin. The first elastic element has elastic deformation that causes the first limiting pin to partially extend out of the first mounting hole in a direction away from the second housing.

[0009] Optionally, the second housing is provided with a second mounting hole, and a second elastic element and a second limiting pin are provided in the second mounting hole. The second elastic element has elastic deformation that causes the second limiting pin to partially extend out of the second mounting hole in a direction away from the first housing.

[0010] Optionally, a first mounting tube is provided on one side of the first housing, and the cavity inside the first mounting tube forms the first mounting position. The first mounting tube is provided with two first notches, which penetrate the side wall of the first mounting tube and the outer end of the tube. The first mounting tube is provided with a first threaded hole and a first through hole facing the first threaded hole. The first threaded hole and the first through hole are respectively located on both sides of the first notch. A first screw passes through the first through hole and is screwed into the first threaded hole so as to adjust the width of the first notch by adjusting the screw length.

[0011] Optionally, a second mounting tube is provided on one side of the second housing. The cavity inside the second mounting tube forms the second mounting position. The second mounting tube has two second notches, which penetrate the side wall of the second mounting tube and the outer end of the tube. The second mounting tube has a second threaded hole and a second through hole facing the second threaded hole. The second threaded hole and the second through hole are respectively located on both sides of the second notch. A second screw passes through the second through hole and is screwed into the second threaded hole to adjust the width of the second notch by adjusting the screw length.

[0012] Optionally, in the stored state and the unfolded state, both the first mounting tube and the second mounting tube are perpendicular to the arrangement direction of the first box and the second box, and are located on the same plane.

[0013] Optionally, a first limiting post is provided on the outer side of the first box body. In the stored state, the first limiting post is spaced apart from the second box body. In the unfolded state, the first limiting post abuts against the second box body to prevent the first box body from continuing to rotate relative to the second box body after the spring box moves from the stored state to the unfolded state.

[0014] Optionally, a second limiting post is provided on the outer side of the second box. In the retracted state, the second limiting post is spaced apart from the first box. In the unfolded state, the second limiting post abuts against the first box to prevent the second box from continuing to rotate relative to the first box after the spring box moves from the retracted state to the unfolded state.

[0015] Optionally, the spring box includes a mounting shaft, the first box body is provided with a third mounting hole, the second box body is provided with a fourth mounting hole, the second box body is rotatably sleeved on the mounting shaft through the fourth mounting hole, and the first box body is rotatably sleeved on the mounting shaft through the third mounting hole.

[0016] Optionally, the end of the mounting shaft extending out of the third mounting hole is provided with a limiting head, the size of which is larger than the radial dimension of the third mounting hole. The end of the mounting shaft extending out of the fourth mounting hole is provided with an external thread, and a limiting nut is screwed into the external thread. The size of the limiting nut is larger than the radial dimension of the fourth mounting hole.

[0017] Optionally, the mounting bushing is provided with a first washer and a second washer, the first washer being located between the limiting head and the first housing, and the second washer being located between the limiting nut and the second housing.

[0018] Optionally, a first reinforcing rib is connected between the first mounting tube and the first housing; a second reinforcing rib is connected between the second mounting tube and the second housing.

[0019] Optionally, the first housing is provided with a third mounting tube, the second housing is provided with a fourth mounting tube, the third mounting hole penetrates the third mounting tube, the fourth mounting hole penetrates the fourth mounting tube, the mounting bushing is provided with a third gasket, and the third gasket is located between the third mounting tube and the fourth mounting tube.

[0020] Optionally, the third mounting tube is provided with a first mounting groove, the inner wall of the second box is provided with a second mounting groove, the inner end of the spiral spring is fixed in the first mounting groove, and the outer end of the spiral spring is fixed in the second mounting groove.

[0021] This utility model's technical solution involves installing a spiral spring within a spring box. The spring box includes a first housing and a second housing. The first housing has a first mounting position on its exterior for mounting an arm of a drone. The second housing has a second mounting position on its exterior. The first housing is rotatably mounted on the second housing, and the second mounting position is used to mount another arm of the drone. The relative positions of the first and second mounting positions can be adjusted. In the unfolded state, the first mounting position is tilted relative to the second mounting position. A mounting cavity is provided between the first and second housings, and the spiral spring is disposed within this cavity. The inner end of the spiral spring is fixed to the first housing, and the outer end is fixed to the second housing. The spring box has both a retracted and an unfolded state. In the retracted state, the orientations of the first and second mounting positions are opposite to each other and parallel. In the extended state, the orientation of the first mounting position is tilted relative to the orientation of the second mounting position. When the spring box is moved from the extended state to the retracted state, the first and second boxes rotate relative to each other, and the two arms are parallel, facilitating the retraction of the two arms into the drone's fuselage for easy mounting of the drone in the launch tube. Simultaneously, the spiral spring undergoes elastic deformation to store elastic potential energy. After the drone is launched through the launch tube, the spiral spring elastically resets, releasing the elastic potential energy, causing the first and second boxes to rotate relative to each other, the spring box moves to the extended state, and the two arms unfold, facilitating the rotation of the rotors mounted on the arms. This comparative design, using two spiral springs to drive the two arms to unfold in sections, simplifies the structure of the drone arm unfolding device, allowing for the unfolding of both arms with just one spiral spring. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the unmanned aerial vehicle (UAV) dual-arm deployment device of this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of the central spring box as it moves from its stored state to its unfolded state;

[0025] Figure 3 for Figure 1 Exploded view of the reed box and the spiral spring;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of the first box and the spiral spring;

[0027] Figure 5 for Figure 1 A schematic diagram of the second box and the spiral spring;

[0028] Figure 6 for Figure 2 Schematic diagram of the structure of a medium-sized spiral spring;

[0029] Figure 7 Installed on two drone arms Figure 1 Schematic diagram of the middle spring box;

[0030] Figure 8 for Figure 7 A schematic diagram of the structure of the central spring box in its unfolded state.

[0031] Explanation of icon numbers:

[0032]

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] This utility model proposes a device for deploying the dual arms of a drone.

[0038] In the embodiments of this utility model, such as 1 to Figure 8 As shown, the drone's dual-arm deployment device includes a spring box 10 and a spiral spring 20. The spring box 10 includes a first box body 11 and a second box body 12. The outer side of the first box body 11 is provided with a first mounting position 1111, and the outer side of the second box body 12 is provided with a second mounting position 1211. Both the first mounting position 1111 and the second mounting position 1211 are used to mount the drone's arms 30. The first box body 11 is rotatably mounted on the second box body 12, so that the relative positions of the first mounting position 1111 and the second mounting position 1211 can be adjusted by rotation. An installation cavity is provided between the boxes 12. The spring box 10 has a retracted state and an unfolded state. In the retracted state, the orientation of the first mounting position 1111 and the orientation of the second mounting position 1211 are opposite to each other and parallel. In the unfolded state, the orientation of the first mounting position 1111 is inclined to the orientation of the second mounting position 1211. A spiral spring 20 is installed in the installation cavity. The inner end of the spiral spring 20 is fixed to the first box 11, and the outer end of the spiral spring 20 is fixed to the second box 12. The spiral spring 20 has an elastic deformation that allows the spring box 10 to move from the retracted state to the unfolded state.

[0039] Specifically, in this embodiment, the dual-arm deployment device for a drone is used in a launch tube. A spring box 10 is installed on the drone, and a drone arm is installed at the first mounting position 1111 and the second mounting position 1211 respectively. When the drone needs to be mounted on the launch tube, the drone arms 30 can be bent. Simultaneously, the two arms 30 apply force to the first box 11 and the second box 12, causing the spiral spring 20 to elastically deform and store elastic potential energy. When the first box 11 and the second box 12 rotate relative to each other to a retracted state, the two arms 30 are parallel and retracted into the drone's fuselage, reducing the space occupied by the drone for easy mounting on the launch tube. After the drone is launched through the launch tube, the spiral spring 20 elastically resets, causing the first box 11 and the second box 12 to rotate relative to each other to an deployed state, allowing the two arms 30 to deploy for flight missions.

[0040] This utility model's technical solution involves setting a spiral spring 20 inside a spring box 10. The spring box 10 includes a first box body 11 and a second box body 12. The first box body 11 has a first mounting position 1111 outside, used to mount an arm 30 of a drone. The second box body 12 has a second mounting position 1211 outside, with the first box body 11 rotatably mounted on the second box body 12. The second mounting position 1211 is used to mount another arm 30 of the drone, allowing adjustment of the relative positions of the first mounting position 1111 and the second mounting position 1211. In the unfolded state, the orientation of the first mounting position 1111 is tilted relative to the second mounting position 1211. A mounting cavity is provided between the first box body 11 and the second box body 12, and the spiral spring 20 is disposed within the mounting cavity. The inner end of the spiral spring 20 is fixed to the first box body 11, and the outer end is fixed to the second box body 12. The spring box 10 has a retracted state and an extended state. In the retracted state, the orientation of the first mounting position 1111 and the orientation of the second mounting position 1211 are opposite to each other and parallel. In the extended state, the orientation of the first mounting position 1111 is inclined to the orientation of the second mounting position 1211. When the spring box 10 is moved from the extended state to the retracted state, the first box 11 and the second box 12 rotate relative to each other, and the two arms 30 are parallel, which makes it convenient to retract the two arms 30 into the fuselage of the drone, so as to facilitate the installation of the drone in the launch tube. At the same time, the spiral spring 20 performs elastic deformation to store elastic potential energy. When the drone is launched through the launch tube, the spiral spring 20 performs elastic reset to release elastic potential energy, causing the first box 11 and the second box 12 to rotate relative to each other. The spring box 10 moves to the extended state, and the two arms 30 are extended, which facilitates the rotation of the rotors installed on the arms 30. By comparing the two spiral springs 20 that drive the two arms 30 to unfold in different sections, and by using only one spiral spring 20 to unfold both arms 30, the structure of the UAV arm unfolding device can be simplified.

[0041] In some embodiments, the first housing 11 is provided with a first mounting hole 117, and the first mounting hole 117 is provided with a first elastic member and a first limiting pin 112. The first elastic member has an elastic deformation that causes the first limiting pin 112 to partially extend out of the first mounting hole 117 in a direction away from the second housing 12. Specifically, the drone has a first limiting hole corresponding to the first limiting pin 112. When the drone's dual-arm unfolding device is installed on the drone body and is in the retracted state, the first limiting pin 112 retracts into the first mounting hole 117 and abuts against the drone body. When the drone is launched, during the process of the spring box 10 moving to the unfolded state, the first box 11 and the second box 12 rotate relative to each other. When it moves to the unfolded state, the first mounting hole 117 moves to the position corresponding to the first limiting hole. The first elastic element pushes the first limiting pin 112 out of the first mounting hole 117, and the first limiting pin 112 partially extends into the first limiting hole, so that the first box 11 cannot rotate relative to the drone body. The arm 30 installed at the first mounting position 1111 is fixed relative to the drone body, avoiding the drone from rotating relative to the drone body during flight and affecting the drone's flight.

[0042] In some embodiments, the second housing 12 is provided with a second mounting hole 128, and a second elastic member and a second limiting pin 122 are provided in the second mounting hole 128. The second elastic member has an elastic deformation that causes the second limiting pin 122 to partially extend out of the second mounting hole 128 in a direction away from the first housing 11. Specifically, the drone has a second limiting hole corresponding to the second limiting pin 122. When the drone's dual-arm unfolding device is installed on the drone body and is in the retracted state, the second limiting pin 122 retracts into the fourth mounting hole 129 and abuts against the drone body. When the drone is launched, during the process of the spring box 10 moving to the unfolded state, the first box 11 and the second box 12 rotate relative to each other. When it moves to the unfolded state, the fourth mounting hole 129 moves to the position corresponding to the second limiting hole. The second elastic member pushes the second limiting pin 122 out of the fourth mounting hole 129, and the second limiting pin 122 partially extends into the second limiting hole, so that the second box 12 cannot rotate relative to the drone body. The arm 30 installed at the second mounting position 1211 is fixed relative to the drone body, avoiding the drone's flight from being affected by the rotation of the arm 30 installed at the second mounting position 1211 relative to the drone body.

[0043] In some embodiments, a first mounting tube 111 is provided on one side of the first housing 11. The cavity inside the first mounting tube 111 forms a first mounting position 1111. The first mounting tube 111 has two first notches that penetrate the side wall and the outer end of the tube. The first mounting tube 111 has a first threaded hole and a first through hole facing the first threaded hole. The first threaded hole and the first through hole are respectively located on both sides of the first notch. A first screw 1112 passes through the first through hole and is screwed into the first threaded hole to adjust the width of the first notch by adjusting the screw length. Specifically, when the arm 30 is installed in the first mounting tube 111, the width of the first notch can be adjusted by tightening the first screw 1112 to adjust the radial dimension of the first mounting tube 111, facilitating the installation and removal of the arm 30 installed in the first mounting position 1111. Furthermore, the first mounting tube 111 and the first housing 11 are integrally formed, resulting in a stronger structure and simpler molding.

[0044] In some embodiments, a second mounting tube 121 is provided on one side of the second housing 12. The cavity inside the second mounting tube 121 forms a second mounting position 1211. Two second notches are provided inside the second mounting tube 121, penetrating the side wall and the outer end of the tube. The second mounting tube 121 has a second threaded hole and a second through hole facing the second threaded hole. The second threaded hole and the second through hole are respectively located on both sides of the second notch. A second screw 1212 passes through the second through hole and is screwed into the second threaded hole to adjust the width of the second notch by adjusting the screw length. Specifically, when the arm 30 is installed in the second mounting tube 121, the width of the second notch can be adjusted by tightening the second screw 1212 to adjust the radial dimension of the second mounting tube 121, facilitating the installation and removal of the arm 30 installed in the second mounting position 1211. Furthermore, the second mounting tube 121 and the second housing 12 are integrally formed, resulting in a stronger structure and simpler molding process for both.

[0045] In some embodiments, the first mounting tube 111 and the tube wall are provided with a first wire passage hole communicating with the cavity inside the first mounting tube 111, and the tube wall of the second mounting tube 121 is provided with a second wire passage hole communicating with the cavity inside the second mounting tube 121. In this way, the connecting wires of the arm 30 installed on the first mounting tube 111 and the arm 30 installed on the second mounting tube 121 can be connected to the electronic control device of the UAV body through the first wire passage hole and the second wire passage hole.

[0046] In some embodiments, in both the retracted and extended states, the first mounting tube 111 and the second mounting tube 121 are perpendicular to the arrangement direction of the first housing 11 and the second housing 12, and are located on the same plane. Specifically, when the drone is in flight, after the spring box 10 moves from the retracted state to the extended state, the arm 30 installed at the first mounting position 1111 and the arm 30 installed at the second mounting position 1211 are at the same level, making the drone's flight more stable.

[0047] In some embodiments, a first limiting post 114 is provided on the outer side of the first box 11. In the retracted state, the first limiting post 114 is spaced apart from the second box 12. In the unfolded state, the first limiting post 114 abuts against the second box 12 to prevent the first box 11 from continuing to rotate relative to the second box 12 after the spring box 10 moves from the retracted state to the unfolded state. A second limiting post 124 is provided on the outer side of the second box 12. In the retracted state, the second limiting post 124 is spaced apart from the first box 11. In the unfolded state, the second limiting post 124 abuts against the first box 11 to prevent the second box 12 from continuing to rotate relative to the first box 11 after the spring box 10 moves from the retracted state to the unfolded state. Specifically, when the spring box 10 moves from the retracted state to the unfolded state, the first limiting post 114 abuts against the second box 12, restricting the first box 11 from continuing to rotate relative to the second box 12. This prevents the arm 30 installed at the first mounting position 1111 from rotating relative to the arm 30 installed at the second mounting position 1211 during drone flight, making the drone's flight more stable. When the spring box 10 moves from the retracted state to the unfolded state, the second limiting post 124 abuts against the first box 11, restricting the second box 12 from continuing to rotate relative to the first box 11. This further prevents the arm 30 installed at the second mounting position 1211 from rotating relative to the arm 30 installed at the first mounting position 1111 during drone flight, making the drone's flight more stable.

[0048] In some embodiments, the spring box 10 includes a mounting shaft 13, a first box body 11 has a third mounting hole 118, and a second box body 12 has a fourth mounting hole 129. The second box body 12 is rotatably fitted onto the mounting shaft 13 through the fourth mounting hole 129, and the first box body 11 is rotatably fitted onto the mounting shaft 13 through the third mounting hole 118. Specifically, this allows both the first box body 11 and the second box body to be rotatably mounted on the mounting shaft 13, enabling the first box body 11 and the second box body 12 to be mounted and rotate relative to each other. This rotatable mounting structure is simpler than mounting one of the first box body 11 and the second box body 12 onto the mounting shaft 13.

[0049] In some embodiments, a limiting head 131 is provided at one end of the mounting shaft 13 extending out of the third mounting hole 118. The size of the limiting head 131 is larger than the radial size of the third mounting hole 118. An external thread is provided at one end of the mounting shaft 13 extending out of the fourth mounting hole 129. A limiting nut 132 is screwed onto the external thread. The size of the limiting nut 132 is larger than the radial size of the fourth mounting hole 129. Specifically, this setting of the limiting head 131 and the limiting nut 132 limits the first housing 11 and the second housing 12, preventing the first housing 11 and the second housing 12 from slipping off the end of the rotating shaft. At the same time, the limiting nut 132 is screwed onto the external thread, facilitating the disassembly of the first housing 11 and the second housing 12 from the rotating shaft.

[0050] In some embodiments, the mounting shaft 13 is fitted with a first washer 14 and a second washer 15. The first washer 14 is located between the limiting head 131 and the first housing 11, and the second washer 15 is located between the limiting nut 132 and the second housing 12. Specifically, the first washer 14 is positioned between the limiting head 131 and the first housing 11 to prevent the limiting head 131 from rubbing against the first housing 11 and damaging it during use. The first washer 14 is positioned between the limiting nut 132 and the second housing 12 to prevent the limiting nut 132 from rubbing against the second housing 12 and damaging it during use.

[0051] In some embodiments, a third mounting tube 115 is provided inside the first housing 11, and a fourth mounting tube 125 is provided inside the second housing 12. A third mounting hole 118 penetrates the third mounting tube 115, and a fourth mounting hole 129 penetrates the fourth mounting tube 125. A third gasket 16 is sleeved on the mounting shaft 13, and the third gasket 16 is located between the third mounting tube 115 and the fourth mounting tube 125. The third mounting tube 115 is provided with a first mounting groove 1151, and the inner wall of the second housing 12 is provided with a second mounting groove 127. The inner end of the spiral spring 20 is fixed to the first mounting groove 1151, and the outer end of the spiral spring 20 is fixed to the second mounting groove 127. Specifically, the first housing 11 is mounted on the mounting shaft 13 via the third mounting tube 115, and the second housing 12 is mounted on the mounting shaft 13 via the fourth mounting tube 125. This provides a more stable rotational mounting structure for the first housing 11 and the second housing 12. Furthermore, the third washer 16 separates the third mounting tube 115 and the fourth mounting tube 125, preventing them from rubbing against each other and wearing out during rotation. The first mounting groove 1151 and the second mounting groove 127 facilitate the installation of the spiral spring 20, eliminating the need for additional spiral spring 20 fixing structures on the first housing 11 and the second housing 12. Additionally, lubricant is provided between the third mounting tube 115 and the mounting shaft 13, and between the fourth mounting tube 125 and the mounting shaft 13.

[0052] In some embodiments, a first reinforcing rib 116 is connected between the first mounting tube 111 and the first housing 11; a second reinforcing rib 126 is connected between the second mounting tube 121 and the second housing 12.

[0053] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A device for deploying the dual arms of a drone, characterized in that, include: A spring box includes a first box body and a second box body. The outer side of the first box body is provided with a first mounting position, and the outer side of the second box body is provided with a second mounting position. Both the first mounting position and the second mounting position are used to mount the arm of a drone. The first box body is rotatably mounted on the second box body so that the relative position of the first mounting position and the second mounting position can be adjusted by rotation. A mounting cavity is provided between the first box body and the second box body. The spring box has a retracted state and an unfolded state. In the retracted state, the orientation of the first mounting position and the orientation of the second mounting position are opposite to each other. In the unfolded state, the orientation of the first mounting position is inclined to the orientation of the second mounting position. as well as A spiral spring is installed in the mounting cavity. The inner end of the spiral spring is fixed to the first housing, and the outer end of the spiral spring is fixed to the second housing. The spiral spring has elastic deformation that allows the spring box to move from the retracted state to the unfolded state.

2. The UAV dual-arm deployment device as described in claim 1, characterized in that, The first box body is provided with a first mounting hole, and a first elastic element and a first limiting pin are provided in the first mounting hole. The first elastic element has elastic deformation that causes the first limiting pin to partially extend out of the first mounting hole in the direction away from the second box body. And / or, the second housing is provided with a second mounting hole, and a second elastic element and a second limiting pin are provided in the second mounting hole. The second elastic element has elastic deformation that causes the second limiting pin to partially extend out of the second mounting hole in a direction away from the first housing.

3. The UAV dual-arm deployment device as described in claim 1, characterized in that, The first box body has a first mounting tube on one side. The cavity inside the first mounting tube forms the first mounting position. The first mounting tube has two first notches. The two first notches penetrate the side wall of the first mounting tube and the tube opening at the outer end. The first mounting tube has a first threaded hole and a first through hole facing the first threaded hole. The first threaded hole and the first through hole are respectively located on both sides of the first notch. A first screw passes through the first through hole and is screwed into the first threaded hole so that the width of the first notch can be adjusted by the screw length. And / or, a second mounting tube is provided on one side of the second housing, the cavity inside the second mounting tube forms the second mounting position, the second mounting tube is provided with two second notches, the two second notches penetrate the side wall of the second mounting tube and the outer end of the tube, the second mounting tube is provided with a second threaded hole and a second through hole facing the second threaded hole, the second threaded hole and the second through hole are respectively located on both sides of the second notch, and a second screw passes through the second through hole and is screwed into the second threaded hole, so as to adjust the width of the second notch by the screwing length.

4. The UAV dual-arm deployment device as described in claim 3, characterized in that, In both the stowed and unfolded states, the first mounting tube and the second mounting tube are perpendicular to the arrangement direction of the first and second boxes and are located on the same plane.

5. The UAV dual-arm deployment device as described in claim 1, characterized in that, The outer side of the first box is provided with a first limiting post. In the stored state, the first limiting post is spaced apart from the second box. In the unfolded state, the first limiting post abuts against the second box to prevent the first box from continuing to rotate relative to the second box after the spring box moves from the stored state to the unfolded state. And / or, a second limiting post is provided on the outer side of the second box body. In the stored state, the second limiting post is spaced apart from the first box body. In the unfolded state, the second limiting post abuts against the first box body to prevent the second box body from continuing to rotate relative to the first box body after the spring box moves from the stored state to the unfolded state.

6. The UAV dual-arm deployment device as described in claim 3, characterized in that, The spring box includes a mounting shaft, the first box body is provided with a third mounting hole, the second box body is provided with a fourth mounting hole, the second box body is rotatably sleeved on the mounting shaft through the fourth mounting hole, and the first box body is rotatably sleeved on the mounting shaft through the third mounting hole.

7. The UAV dual-arm deployment device as described in claim 6, characterized in that, The mounting shaft extends out of the third mounting hole and is provided with a limiting head. The size of the limiting head is larger than the radial size of the third mounting hole. The mounting shaft extends out of the fourth mounting hole and is provided with an external thread. The external thread is screwed with a limiting nut. The size of the limiting nut is larger than the radial size of the fourth mounting hole.

8. The UAV dual-arm deployment device as described in claim 7, characterized in that, The mounting bushing is provided with a first washer and a second washer. The first washer is located between the limiting head and the first housing, and the second washer is located between the limiting nut and the second housing.

9. The UAV dual-arm deployment device as described in claim 6, characterized in that, A first reinforcing rib connects the first mounting tube and the first housing. And / or, a second reinforcing rib is connected between the second mounting tube and the second housing.

10. The UAV dual-arm deployment device as described in claim 6, characterized in that, The first box body is provided with a third mounting tube, the second box body is provided with a fourth mounting tube, the third mounting hole penetrates the third mounting tube, the fourth mounting hole penetrates the fourth mounting tube, the mounting bushing is provided with a third gasket, and the third gasket is located between the third mounting tube and the fourth mounting tube; The third mounting tube is provided with a first mounting groove, the inner wall of the second box is provided with a second mounting groove, the inner end of the spiral spring is fixed in the first mounting groove, and the outer end of the spiral spring is fixed in the second mounting groove.

Images