A material delivery device applied to a UAV system

Abstract

The application discloses a material delivery device applied to a UAV system, which comprises a box body, a first door plate and a second door plate which can be opened oppositely are installed at the bottom of the box body, the second door plate is buckled on the upper surface of the first door plate, and a locking mechanism is installed across the first door plate and the box body, and the locking mechanism is located at least at the two ends of the free edge of the first door plate, and the locking mechanism is used for simultaneously locking and connecting or separating the two ends of the free edge of the first door plate with the box body. Since the two ends of the free edge of the first door plate and the second door plate are fixed through one locking mechanism, the two ends of the free edge of the first door plate and the second door plate are simultaneously locked or simultaneously separated and opened, the uniform stress of the first door plate and the second door plate is guaranteed, the situation that only one end is stressed during the delivery process is avoided, the stress deformation of the door plate is prevented, and therefore the material delivery device can be used for the delivery of heavy-load substances and has a longer service life.

Description

Technical Field

[0001] This invention relates to the field of aerial material delivery technology, and more specifically to a material delivery device applied to an unmanned aerial vehicle (UAV) system. Background Technology

[0002] With the development of drones, the use of drones for material delivery has the advantages of high efficiency and accuracy. In order to deliver materials, a material delivery device will be installed on the drone's frame. The material delivery device is a box with an openable and closable door at the bottom. The material delivery is achieved by controlling the openable and closable door.

[0003] In existing technologies, the most common and practical design involves a material delivery device with two hinged doors at the bottom. Each end of the door's closure line has a locking device and an opening / closing drive mechanism. The locking device includes a servo motor, which locks one end of each door. The opening / closing drive mechanism includes an electric cylinder, which drives the opening / closing drive mechanism to operate on the other end of each door, simultaneously opening and closing the two doors. When delivering materials, the servo motor opens the locking device, unlocking the closed end of each door. The electric cylinder then drives the opening / closing drive mechanism to open the doors and deliver the materials. After delivery, the electric cylinder closes the doors, and the servo motor then locks the other end of the doors.

[0004] In the aforementioned material dispensing device, the two ends of the door panel are opened and closed by two devices. During the dispensing process, one end of the two door panels will be unlocked and opened first. At this time, the closed end of the two door panels will have no force support point. Under the action of the weight of the material, this end will deform. When the material is too heavy, it will also cause damage to the door panel. Therefore, the material dispensing device in the prior art can only dispense lighter materials. Summary of the Invention

[0005] This application provides a material delivery device capable of carrying and delivering large loads of materials.

[0006] One embodiment provides a material delivery device for an unmanned aerial vehicle (UAV) system, comprising:

[0007] The box has a first door panel and a second door panel that can be opened from the bottom. The second door panel is fastened to the upper surface of the first door panel.

[0008] And a locking mechanism, which is installed across the first door panel and the housing, and the locking mechanism is located at both ends of the free edge of the first door panel. The locking structure is used to lock or separate both ends of the free edge of the first door panel from the housing at the same time.

[0009] One embodiment provides another material delivery device for use in an unmanned aerial vehicle (UAV) system, comprising:

[0010] The box body has a first and second door panel that can be opened in opposite directions installed at the bottom;

[0011] A locking mechanism is installed across the first door panel and the second door panel, and the locking mechanism is located at least at both ends of the free edge of the first door panel. The locking structure is used to lock or separate the two ends of the free edge of the first door panel from the two ends of the free edge of the second door panel simultaneously.

[0012] According to the above embodiment, the material delivery device applied to the unmanned aerial vehicle system is fixed at both ends of the free edges of the first and second door panels by a locking mechanism, which enables the two ends of the free edges of the first and second door panels to be locked or opened at the same time. This ensures that the first and second door panels are subjected to uniform force, avoids the situation where only one end is subjected to force during delivery, and prevents the door panels from deforming under force. Therefore, this material delivery device can be used for the delivery of heavy materials and has a longer service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the material dispensing device in Example 1;

[0014] Figure 2 This is a top view of the material dispensing device in Example 1 with part of the casing removed.

[0015] Figure 3 This is a bottom view of the material dispensing device in Example 1;

[0016] Figure 4 This is a schematic diagram of the locking mechanism in Embodiment 1;

[0017] Figure 5 This is a schematic diagram of the drive component in Embodiment 1;

[0018] Figure 6 This is a schematic diagram of the material dispensing device in Example 2;

[0019] Figure 7 This is a schematic diagram of the locking mechanism in Embodiment 2;

[0020] Figure 8 This is a schematic diagram of the linkage assembly in Embodiment 2;

[0021] Figure 9 This is a schematic diagram of the drive component in Embodiment 2;

[0022] Figure 10 This is a schematic diagram of the material dispensing device in Example 3;

[0023] Figure 11 This is a schematic diagram of the locking mechanism in Embodiment 3. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0025] Example 1:

[0026] This embodiment provides a material delivery device, which is mainly used in unmanned aerial vehicle (UAV) systems. It is mounted on the UAV's frame to deliver materials via the UAV. This material delivery device can also be mounted on ordinary aircraft or other flying vehicles to achieve the delivery of heavy-load materials.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the material delivery device in this embodiment mainly includes a box body 1 and a locking mechanism 2. The box body 1 includes a shell 11 and a frame 12. The shell 11 is installed and fixed on the frame 12. The shell 11 is enclosed by door panels, and the frame 12 serves as the supporting force-bearing unit for the entire box body.

[0028] like Figure 2 As shown, the bottom of the housing 1 is equipped with a first door panel 111 and a second door panel 112 that can be opened. That is, the bottom door panel of the housing 11 is composed of the first door panel 111 and the second door panel 112. The first door panel 111 and the second door panel 112 are mounted on the frame 12 by a spring hinge 13. The spring hinge 13 always provides a force that makes the first door panel 111 and the second door panel 112 close.

[0029] For ease of description, in this embodiment, the side portion of the first door panel 111 and the second door panel 112 on which the spring hinge 13 is installed is defined as the connecting side portion, the other side portion relative to the connecting side portion is defined as the free side portion, and the other two sides are defined as the side portions.

[0030] like Figure 3 As shown, in order to limit the closing of the first door panel 111 and the second door panel 112, a limiting plate 14 is installed on the lower surface of the first door panel 111 and the second door panel 112. The limiting plate 14 is located on both sides of the first door panel 111 and the second door panel 112. One end of the limiting plate 14 is fixedly installed on the first door panel 111 or the second door panel 112, and the other end extends out of the side of the first door panel 111 or the second door panel 112. Thus, during the closing process, the first door panel 111 and the second door panel 112 are limited on the frame 12 by the limiting plate 14.

[0031] In this embodiment, a latching plate 15 is installed on the upper surface of the free edge of the second door panel 112. Part of the latching plate 15 is installed on the second door panel 112, and the other part covers the upper surface of the first door panel 111, so that the second door panel 112 can be latched onto the upper surface of the first door panel 111 via the latching plate 15. The latching plate 15 simplifies the installation of a locking mechanism only on the first door panel 111; the weight of the materials carried by the second door panel 112 is transferred to the first door panel 111 through the latching plate 15. In other embodiments, the latching plate 15 and the second door panel 112 are an integral structure, with the latching plate 15 formed by extending and bending from the free edge of the second door panel 112.

[0032] like Figure 3 and Figure 4 As shown, in this embodiment, the locking mechanism 2 includes a first locking member 21, a second locking member 22, and a driving member 23. The first locking member 21 is movably mounted on the first door panel 111 and located at both ends of the free edge of the first door panel 111. The second locking member 22 is mounted on the frame 12 of the housing 1 and is disposed opposite to the first locking member 21. The driving member 23 is mounted on the first door panel 111 and is connected to the first locking member 21 to drive the first locking member 21 to move, thereby locking or separating it from the second locking member 22.

[0033] Specifically, the first locking member 21 includes a plug rod 211 and a linear bearing 212. There are two plug rods 211. The two ends of the plug rod 211 are respectively mounted on the lower surface of the first door panel 111 through the linear bearing 212. The two plug rods 211 are arranged in parallel and spaced apart, and are located at both ends of the free edge of the first door panel 111. The two plug rods 211 are parallel to the rotation axis of the first door panel 111.

[0034] The second locking member 22 includes two latches 221, which are fixedly installed on the lower surface of the frame 12 of the housing 1. The two latches 221 correspond to the two insert rods 211 respectively. One end of the insert rod 211 can be inserted into the latch 221 to form a locking connection. The other end of the insert rod 211 extends towards the middle, and the side of the end extending to the middle is provided with straight teeth. The straight teeth of the two insert rods 211 are arranged face to face.

[0035] like Figure 5As shown, the drive unit 23 includes a servo motor 231, a gear 232, and a servo motor mounting base 233. The servo motor 231 is mounted on the center of the free side of the first door plate 111 via the servo motor mounting base 233, located between the two insert rods 211. The gear 232 is mounted on the output shaft of the servo motor 231. The two insert rods 211 are respectively connected to the gear 232 through linear gears. The servo motor 231 can simultaneously drive the two insert rods 211 to move linearly in opposite directions via the gear 232, thereby achieving simultaneous locking and unlocking of the two insert rods 211 and the latch 221. The servo motor 231 is connected to the UAV controller signal, enabling automated material delivery.

[0036] In other embodiments, the drive unit 23 includes a bidirectional cylinder, with two insert rods 211 arranged on the same straight line. The two insert rods 211 are respectively connected to the output shaft of the bidirectional cylinder at one end of their middle section. The bidirectional cylinder can simultaneously drive the two insert rods 211 to move in opposite straight lines, which can also achieve simultaneous locking and release of the two insert rods 211 from the latch 221.

[0037] In other embodiments, there are 4 or 6 insert rods 211, and each insert rod 211 is provided with a corresponding latch 221. The insert rods 211 are distributed at both ends or in the middle of the side of the first door panel 111. The insert rods 211 located on the same side of the first door panel 111 are connected by a T-shaped connecting rod. The end of the T-shaped connecting rod extending to the middle is provided with a straight tooth. The servo motor 231 drives 4 or 6 insert rods 211 to move linearly at the same time through the gear 232. In this embodiment, more insert rods 211 and latches 221 are provided, respectively at both ends or in the middle of the side of the first door panel 111, which improves the load-bearing capacity of the first door panel 111.

[0038] In this embodiment, the working principle of the material dispensing device is as follows:

[0039] The initial state is that the material delivery device carries the materials and is hoisted onto the drone;

[0040] When supplies need to be dropped, the control servo 231 drives the two insert rods 211 to move inward simultaneously through the gear 232. The insert rods 211 are simultaneously separated from the latch 221. At this time, the first door panel 111 is unlocked, and both the first door panel 111 and the second door panel 112 are in a free state. Under the action of gravity, the supplies push the first door panel 111 and the second door panel 112 apart. The first door panel 111 and the second door panel 112 flip downward, and the supplies fall between the first door panel 111 and the second door panel 112.

[0041] After the materials are delivered, the first door panel 111 and the second door panel 112 flip upward and close under the action of the spring hinge 13. Since the first door panel 111 is equipped with the second locking part 22 and the driving part 23, the second door panel 112 is lighter and will flip into place more quickly. Under the action of the limiting plate 14, the first door panel 111 and the second door panel 112 are restricted to the closed state.

[0042] The control servo motor 231 drives the two insert rods 211 to move outward simultaneously through the gear 232. The insert rods 211 lock with the latch 221 at the same time, and the first door panel 111 is locked, thus completing the material delivery.

[0043] In this embodiment, the shell 11 and frame 12 of the material dispensing device are both made of aluminum alloy, which has the characteristics of high strength and light weight.

[0044] Several reinforcing ribs 16 are installed on the lower surfaces of the first door panel 111 and the second door panel 112. The reinforcing ribs 16 are the same as the channel steel structure, with a U-shaped cross section. The setting of the reinforcing ribs 16 improves the load-bearing capacity of the first door panel 111 and the second door panel 112.

[0045] A closable side door panel 113 is installed on the side of the housing 11. The upper end of the side door panel 113 is mounted on the frame 12 of the housing 1 via a damped hinge 17 (commonly known as an "arbitrary stop"), allowing the side door panel 113 to be stopped at any angle after being opened, thanks to the damped hinge 17. Movable latches 18 are installed on both sides of the lower end of the side door panel 113, which can quickly lock the side door panel 113 onto the frame 12.

[0046] Hooks 19 are installed at the four corners of the top of the housing 1. The hooks 19 are used to quickly install the housing 1 onto the frame of the drone. The hooks 19 can also be quickly removed.

[0047] The material delivery device provided in this embodiment, because the two ends of the free edges of the first door panel 111 and the second door panel 112 are fixed by a locking mechanism 3, realizes that the two ends of the free edges of the first door panel 111 and the second door panel 112 can be locked or opened at the same time. This ensures that the first door panel 111 and the second door panel 112 are subjected to uniform force, avoids the situation where only one end is subjected to force during delivery, and prevents the door panel from deforming under force. Therefore, this material delivery device can be used for delivery of heavy materials and has a longer service life.

[0048] This material delivery device achieves both high load capacity and delivery function with only one drive component. Specifically, it provides a delivery device for delivering heavy objects (approximately 44 kg).

[0049] Theoretically, if the servo motor is model M = 30 kg·cm, the gear diameter D = 17 mm, and the pulling force generated by the two rods 211 is F = M / D ≈ 176 N, and the coefficient of friction is μ = 0.4, then the weight of the load can be G = F / μ ≈ 440 N ≈ 44 kg. Therefore, theoretically, even under conditions of high contact friction (μ = 0.4, equivalent to unlubricated friction between steel and rubber), it can still carry 44 kg of load.

[0050] Example 2:

[0051] This embodiment provides a material dispensing device. Compared with the above embodiment, this embodiment is the same except for the locking mechanism. The structure and installation position of the locking mechanism are different.

[0052] like Figure 6 and Figure 7 As shown, the locking mechanism 3 in this embodiment also includes a first locking member 31, a second locking member 32, and a driving member 33. The first locking member 31 is installed on the first door panel 111 and extends to both ends of the free edge of the first door panel 111. The second locking member 32 is installed on the frame 12 of the housing 1 and is disposed opposite to the first locking member 31. The driving member 33 is installed on the frame 12 of the housing 1 and is connected to the second locking member 32, for driving the second locking member 32 to lock or separate from the first locking member 31.

[0053] Specifically, the first locking member 31 includes two pairs of linkage groups, which are perpendicular to the rotation axis of the first door panel 111. Each linkage group includes a fixing rod 311, a connecting rod 312, a snap-fit ​​rod 313, and a linkage mounting base 314. The fixing rods 311 are fixed to the first door panel 111, with their ends extending to both ends of the free edge of the first door panel 111. The fixing rods 311 serve as reinforcing ribs fixed to the first door panel 111. The two snap-fit ​​rods 313 are rotatably mounted on both ends of the connecting edge of the first door panel 111 via the linkage mounting base 314. The rotation plane of the snap-fit ​​rods 313 is perpendicular to the first door panel 111. One end of the connecting rod 312 is hinged to the end of the fixing rod 311, and the other end is hinged to one end of the snap-fit ​​rod 313. The other end of the snap-fit ​​rod 313 has a latch on the side facing the first door panel 111.

[0054] like Figure 8 As shown, the middle part of the locking rod 313 is rotatably mounted on the connecting rod mounting base 314 via a pivot, and both ends of the locking rod 313 are bent away from the first door panel. The bending of the locking rod 313 facilitates the locking and locking of the locking rod 313.

[0055] The second locking component 32 includes a rotating shaft 321, a push rod 322, and a rotating shaft mounting base 323. The rotating shaft 321 is rotatably mounted on the frame 12 of the housing 1 via the rotating shaft mounting base 323, wherein the rotating shaft mounting base 323 is a rolling bearing. Each locking rod 313 corresponds to a push rod 322. A push rod 322 is fixedly installed at both ends of the rotating shaft 321. The rotating shaft 321 is perpendicular to the connecting rod assembly. One end of the push rod 322 is fixed to the rotating shaft, and the other end is opposite to the locking slot of the locking rod 313. The end of the push rod 322 used for locking has a chamfer. When the push rod 322 is tilted, it abuts against the locking slot of the locking rod 313 to fix the connecting rod assembly, thereby locking the first door panel 111.

[0056] In other embodiments, the linkage groups are arranged in three groups, located at the left, center, and right positions of the first door panel 111, respectively. There are three corresponding top rods 322, each corresponding to one of the three locking rods 313. In this embodiment, by setting multiple linkage groups, the load-bearing capacity of the first door panel 111 is improved.

[0057] like Figure 4 and Figure 9 As shown, in this embodiment, the drive unit 33 includes a servo motor 331, a connector 332, and a servo motor mounting plate 333. The servo motor 331 is mounted on the frame 12 of the housing 1 through the servo motor mounting plate 333, and the output shaft of the servo motor 331 is connected to the rotating shaft 321 through the connector 332.

[0058] In this embodiment, the connector 332 includes a first rotating arm 3321, a fork 3322, a second rotating arm 3323, and a fork mounting base 3324. One end of the first rotating arm 3321 is mounted on the output shaft of the servo motor 331, and the other end is provided with a stop post parallel to the output shaft of the servo motor 331. The fork 3322 is rotatably mounted on the frame 12 of the housing 1 through the fork mounting base 3324 and is parallel to the rotating shaft 321. One end of the second rotating arm 3323 is fixed on the rotating shaft 321, and the other end is provided with a stop post parallel to the output shaft of the servo motor 331. The two ends of the fork 3322 are provided with sliding grooves, and the stop posts on the first rotating arm 3321 and the second rotating arm 3323 are slidably engaged in the sliding grooves at both ends of the fork 3322. The servo motor 331 drives the rotating shaft 321 to rotate successively through the first rotating arm 3321, the fork 3322, and the second rotating arm 3323, thereby driving the push rod 322 to engage or disengage from the locking rod 313. Furthermore, the design of the sliding grooves at both ends of the fork 3322 has a self-locking function, which can prevent the locking mechanism 3 from opening without being triggered by the servo motor 331.

[0059] In other embodiments, the connector 332 is a coupling, and the output shaft of the servo motor 331 is directly connected through the rotating shaft 321. The servo motor 331 directly drives the rotation of the rotating shaft 321, thereby realizing the opening and closing of the locking mechanism 3.

[0060] The material delivery device in this embodiment provides another locking mechanism 3, which simultaneously locks both ends of the free side of the first door panel 111 in another way and is driven by a servo motor 331, ensuring that both ends of the first door panel 111 are locked and opened at the same time, avoiding the imbalance of force on the first door panel 111 and the second door panel 112, and improving the load-bearing capacity of the first door panel 111 and the second door panel 112.

[0061] Example 3:

[0062] This embodiment provides a material dispensing device. Compared with the above embodiment, this embodiment is the same except for the locking mechanism and the second door panel. The structure and installation position of the locking mechanism are different.

[0063] like Figure 10 As shown, the locking structure 4 in this embodiment includes a first locking member 41, a second locking member 42, and a driving member 43. The first locking member 41 is mounted on the first door panel 111 and extends to both ends of the free edge of the first door panel 111. The second locking member 42 is mounted on the second door panel 112 and is disposed opposite to the first locking member 41. The driving member 43 is mounted on the first door panel 111 and connected to the first locking member 41, and is used to drive the first locking member 41 and the second locking member 42 to lock together or separate.

[0064] Specifically, such as Figure 11 As shown, the first locking member 41 includes two insert rods 411, a connecting rod 412, and a linear bearing 413. Two insert rods 411 are slidably mounted at both ends of the free edge of the first door panel 111 via the linear bearing 413, and are perpendicular to the rotation axis of the first door panel 111. The connecting rod 412 connects the two insert rods 411 together, forming a U-shaped structure. In other embodiments, the U-shaped structure formed by connecting the two insert rods 411 and the connecting rod 412 can be achieved by bending a single rod twice. The second locking member 42 includes two latches 421, which are mounted at both ends of the free edge of the second door panel 112, corresponding one-to-one with the insert rods 411.

[0065] In this embodiment, the driving component 43 includes a servo motor 431, a gear 432, a rack 433, and a servo motor mounting base 434. The servo motor 431 is mounted on the first door plate 111 via the servo motor mounting base 434. The gear 432 is mounted on the output shaft of the servo motor 431. The rack 433 is slidably mounted on the first door plate 111, located between and parallel to the two insert rods 411. One end of the rack 433 is fixedly connected to the middle of the connecting rod 412, and the other end is meshed with the gear 432. The servo motor 431 drives the two insert rods 411 to move simultaneously via the gear 432, rack 433, and connecting rod 412, thereby achieving simultaneous locking or disengagement.

[0066] In other embodiments, there may be three or four insertion rods 411, and the corresponding number of latches 421 are provided. Multiple insertion rods 411 are connected by a connecting rod 412, so that all insertion rods 411 can move simultaneously to achieve synchronous locking or disengagement.

[0067] In other embodiments, the drive unit 43 includes an electric cylinder and an electric cylinder mounting base. The electric cylinder is mounted on the first door panel 111 via the electric cylinder mounting base. The output shaft of the electric cylinder is fixedly connected to the middle of the connecting rod 412, which can also drive the movement of the two insert rods 411.

[0068] In the material delivery device provided in this embodiment, the second door panel 112 does not need to be fastened to the first door panel 111. The locking structure 4 directly locks the first door panel 111 and the second door panel 112, and realizes simultaneous locking or unlocking of both ends. This avoids deformation caused by uneven force on the first door panel 111 and the second door panel 112, and also improves the load-bearing capacity of the first door panel 111 and the second door panel 112.

[0069] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. A material delivery device for use in an unmanned aerial system, the device comprising: a housing; a material delivery mechanism; a material supply; a material delivery mechanism control system; and a material delivery mechanism control system control system. The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door panel and second door panel to close, and locking mechanism is installed across the first door panel and the box, and the locking mechanism is located both ends of the free edge of the first door panel, and the locking mechanism is used for locking the both ends of the free edge of the first door panel with the box simultaneously or separating, The utility model relates to a box, the bottom of the box is equipped with first door panel and second door panel that can open, the second door panel is buckled on the upper surface of the first door panel, the first door panel and second door panel are fixed on the box through spring hinge, and the spring hinge always provides the force of driving the first door 2. The dispensing apparatus of claim 1, wherein The middle part of the clamping rod is rotatably installed on the connecting rod mounting seat through a rotating shaft, and the two ends of the clamping rod are bent away from the first door plate.

3. The dispensing apparatus of claim 1, wherein The upper end of the free edge part of the second door plate is provided with a flap, and the second door plate is buckled on the upper end of the free edge part of the first door plate through the flap.

4. The dispensing apparatus of claim 1, wherein The lower surfaces of the first door plate and the second door plate are each provided with a reinforcing rib.

5. The dispensing apparatus of claim 1, wherein A side door plate that can be opened and closed is installed on the upper side door of the box body, the upper end of the side door plate is installed on the box body through a hinge with a certain damping, and the lower end of the side door plate is installed on the box body through a movable lock buckle and can be opened and closed.

6. The dispensing apparatus of claim 1, wherein The top of the box body is provided with a hanging buckle for installation on a drone rack.

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