A delivery device and aircraft

Abstract

The application provides a delivery device and an airplane, relates to the field of unmanned aerial vehicle delivery, and comprises a sliding block mechanism, a connecting shaft, two bearing platforms and a driving device. The two ends of the connecting shaft are connected with the two sliding block mechanisms respectively, the two bearing platforms are arranged on the two sliding block mechanisms respectively, and the driving device is used for driving the connecting shaft to rotate. The sliding block mechanism comprises a fixed base arranged on a cargo compartment floor and a sliding block connected with the connecting shaft. The bearing platform is arranged on the sliding block, and the sliding block is slidably arranged on the fixed base. The bearing platforms on the two sides of the application can be linked left and right and synchronously moved, are not affected by the airplane posture and the load center of gravity of the cargo, and the ejection posture of the cargo is ensured.

Description

Technical Field

[0001] This invention relates to the field of drone delivery, and more specifically, to a delivery device and an aircraft. Background Technology

[0002] Unmanned aerial vehicle (UAV) delivery systems are low-altitude unmanned aircraft operated by radio remote control equipment or their own program control devices that carry packages and automatically deliver them to their destinations. By using UAVs to replace manual package delivery, the efficiency of package transportation is improved and labor costs are reduced.

[0003] The inventors discovered that the left and right cargo-carrying devices are controlled by independent drive units. The cargo is limited in front-to-back and left-to-right directions by baffles. After the release command is issued, the drive motors of the left and right cargo-carrying platforms work simultaneously, moving outwards. After the cargo bottom plate is pulled out, the cargo is thrown downwards by gravity. Due to changes in the aircraft's attitude during flight, the weight on the two cargo-carrying platforms deviates significantly, resulting in inconsistent movement speeds of the left and right cargo-carrying platforms. This causes the cargo to tilt to one side during release, affecting its exit posture. Summary of the Invention

[0004] The purpose of this invention is to provide a delivery device and an aircraft, wherein the carrying platforms on both sides can move synchronously and in a coordinated manner, unaffected by the aircraft's attitude and the center of gravity of the cargo loading, thus ensuring the cargo's exit posture.

[0005] The embodiments of the present invention are implemented as follows:

[0006] In a first aspect, the present invention provides a dispensing device, comprising a slider mechanism, a connecting shaft, two bearing platforms and a driving device, wherein the two ends of the connecting shaft are respectively connected to the two slider mechanisms, the two bearing platforms are respectively disposed on the two slider mechanisms, and the driving device is used to drive the connecting shaft to rotate.

[0007] The slider mechanism includes a fixed base mounted on the cargo hold floor and a slider connected to the connecting shaft. The bearing platform is mounted on the slider, and the slider is slidably mounted on the fixed base.

[0008] When the driving device drives the connecting shaft to rotate in the forward direction, the sliders connected to both ends of the connecting shaft gradually move closer, thereby causing the two bearing platforms to move closer; when the driving device drives the connecting shaft to rotate in the reverse direction, the sliders connected to both ends of the connecting shaft gradually move away, thereby causing the two bearing platforms to move away.

[0009] In an optional embodiment, the fixed base is further provided with a sliding groove and two positioning rods. The slider is disposed in the sliding groove and has two positioning holes. The two positioning rods pass through the two positioning holes respectively.

[0010] In an optional embodiment, the connecting shaft includes a torsion bar, two lead screws with opposite directions of rotation, and two couplings. The two lead screws are respectively disposed at both ends of the torsion bar via the couplings. The slider is provided with threaded holes, and the lead screws are disposed in the threaded holes.

[0011] In an optional embodiment, the dispensing device further includes a pulley assembly, and four slider mechanisms are provided. The four slider mechanisms are respectively located at the four corners of the rectangular dispensing port. Two opposing slider mechanisms are connected by the connecting shaft, and two slider mechanisms on the same side are connected by the pulley assembly.

[0012] In an optional embodiment, the pulley assembly includes a driving pulley, a driven pulley, and a timing belt. The driving pulley and the driven pulley are respectively connected to the same end of the two connecting shafts, and the timing belt connects the driving pulley and the driven pulley.

[0013] In an optional embodiment, the pulley assembly further includes a tensioner, one end of which is fixed to the cargo hold floor and the other end of which contacts the timing belt.

[0014] In an optional embodiment, the delivery device further includes two cargo limiting members, which are fixed to the cargo hold floor.

[0015] In an optional embodiment, the delivery device further includes a position sensor for detecting the position of any of the carrier platforms.

[0016] In an optional implementation, the support platform is provided with a plurality of balls.

[0017] Secondly, the present invention provides an aircraft including a delivery device as described in any of the foregoing embodiments.

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

[0019] This invention provides a delivery device and aircraft, comprising a slider mechanism, a connecting shaft, two carrying platforms, and a drive device. The two ends of the connecting shaft are respectively connected to the two slider mechanisms, and the two carrying platforms are respectively mounted on the two slider mechanisms. The drive device drives the connecting shaft to rotate. Each slider mechanism includes a fixed base mounted on the cargo hold floor and a slider connected to the connecting shaft. The carrying platforms are mounted on the sliders, and the sliders are slidably mounted on the fixed base. When the drive device drives the connecting shaft to rotate in the forward direction, the sliders connected to both ends of the connecting shaft gradually move closer, thereby causing the two carrying platforms to move closer together. When the drive device drives the connecting shaft to rotate in the reverse direction, the sliders connected to both ends of the connecting shaft gradually move away, thereby causing the two carrying platforms to move away from each other. This invention uses the connecting shaft to drive the two slider mechanisms connected to its two ends to move synchronously, i.e., move closer or further away from each other, thereby causing the two carrying platforms mounted on the sliders to move synchronously. This design ensures synchronized operation of the two carrying platforms and prevents cargo from tipping over during delivery. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the dispensing device in a loading state according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the dispensing device in the dispensing state according to an embodiment of the present invention;

[0023] Figure 3 This is a partial structural diagram of the dispensing device provided in an embodiment of the present invention;

[0024] Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle.

[0025] icon:

[0026] 10-Slider mechanism; 11-Fixed base; 111-Slide groove; 112-Positioning rod; 12-Slider; 121-Positioning hole; 122-Threaded hole; 20-Connecting shaft; 21-Torsion bar; 22-Lead screw; 23-Coupling; 30-Bearing platform; 40-Drive device; 50-Pulley assembly; 51-Driving wheel; 52-Driven wheel; 53-Synchronous belt; 54-Tensioning wheel; 60-Cargo limiting component; 70-Position sensor; 80-Ball bearing; 90-Cargo compartment floor. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The delivery device provided in this embodiment is mainly applied in the field of drones and can be used for military drones, civilian drones, large drones and small drones. The delivery device in this embodiment has two supporting platforms 30 on both sides that can move synchronously and in a coordinated manner, without being affected by the aircraft attitude and the center of gravity of the cargo loading, thus ensuring the cargo's exit posture.

[0034] like Figure 1 and Figure 4 As shown, the delivery device provided in this embodiment includes a slider mechanism 10, a connecting shaft 20, two carrying platforms 30, and a driving device 40. The two ends of the connecting shaft 20 are respectively connected to the two slider mechanisms 10, and the two carrying platforms 30 are respectively mounted on the two slider mechanisms 10. The driving device 40 is used to drive the connecting shaft 20 to rotate. Each slider mechanism 10 includes a fixed base 11 mounted on the cargo hold floor 90 and a slider 12 connected to the connecting shaft 20. The carrying platforms 30 are mounted on the sliders 12, and the sliders 12 are slidably mounted on the fixed base 11. When the driving device 40 drives the connecting shaft 20 to rotate in the forward direction, the sliders 12 connected to both ends of the connecting shaft 20 gradually move closer, thereby causing the two carrying platforms 30 to move closer. When the driving device 40 drives the connecting shaft 20 to rotate in the reverse direction, the sliders 12 connected to both ends of the connecting shaft 20 gradually move away, thereby causing the two carrying platforms 30 to move away. Specifically, the carrying platform 30 is used to carry cargo, is rectangular in shape, and is arranged along a direction perpendicular to the connecting shaft 20.

[0035] It is understood that the dispensing device provided in this embodiment has two states, the first state being the loading state, such as... Figure 1 As shown, the drive device 40 drives the connecting shaft 20 to rotate in the forward direction, causing the two carrying platforms 30 to move closer together. At this time, goods can be placed on the two carrying platforms 30. Another state is the delivery state, as shown... Figure 2 As shown, the drive unit 40 drives the connecting shaft 20 to rotate in the opposite direction, causing the two carrying platforms 30 to operate in the same direction. At this time, the goods placed on the two carrying platforms 30 are dropped off the aircraft.

[0036] In this embodiment, the connecting shaft 20 drives the two slider mechanisms 10 connected to its two ends to move synchronously, that is, to move closer to or further away from each other, thereby enabling the two supporting platforms 30 set on the slider 12 to move synchronously. This design ensures that the two supporting platforms 30 operate synchronously and avoids the goods from tipping over during the delivery process.

[0037] In some embodiments, the fixed base 11 is further provided with a slide groove 111 and two positioning rods 112. The slider 12 is disposed in the slide groove 111, and the slider 12 is provided with two positioning holes 121. The two positioning rods 112 pass through the two positioning holes 121 respectively. Specifically, the diameter of the positioning hole 121 is slightly larger than the diameter of the positioning rod 112, reducing the contact area between the positioning hole 121 and the positioning rod 112 when the slider 12 slides. It can be understood that the purpose of providing the slide groove 111 is to position the slider 12, allowing it to slide only within the slide groove 111, thereby improving the stability of the device. The purpose of providing the two positioning rods 112 is to prevent the connecting shaft 20 from driving the slider 12 to rotate together when it rotates, which also has a positioning function.

[0038] like Figure 3 As shown, the connecting shaft 20 further includes a torsion bar 21, two lead screws 22 with opposite directions of rotation, and two couplings 23. The two lead screws 22 are respectively disposed at both ends of the torsion bar 21 via the couplings 23. The slider 12 is provided with threaded holes 122, and the lead screws 22 are disposed in the threaded holes 122. It can be understood that the purpose of providing two lead screws 22 with opposite directions of rotation is to ensure that when the torsion bar 21 is rotated, the sliders 12 connected to both ends of the torsion bar 21 can move closer or further apart.

[0039] In some other embodiments, in addition to the lead screw 22 being respectively set at both ends of the torsion bar 21 via the coupling 23, the two ends of the torsion bar 21 can also be directly welded to the lead screw 22, or the two ends of the torsion bar 21 can be made into threaded sections. This embodiment does not limit this, and the specific form of connection adopted depends on the situation.

[0040] Furthermore, the dispensing device also includes a pulley assembly 50, and four slider mechanisms 10 are provided. The four slider mechanisms 10 are respectively located at the four corners of the rectangular feeding port. Opposite slider mechanisms 10 are connected by connecting shafts 20, and two slider mechanisms 10 on the same side are connected by the pulley assembly 50. Specifically, one support platform 30 is fixedly mounted on two sliders 12 on the same side, and another support platform 30 is fixedly mounted on two sliders 12 on the other side. It can be understood that in this embodiment, the four slider mechanisms 10 achieve synchronous operation through the connecting shafts 20 and the pulley assembly 50. Only one drive device 40 is needed to drive any one of the connecting shafts 20 to achieve synchronous operation of the four slider mechanisms 10.

[0041] Furthermore, the pulley assembly 50 in this embodiment includes a driving pulley 51, a driven pulley 52, and a timing belt 53. The driving pulley 51 and the driven pulley 52 are respectively connected to the same end of the two connecting shafts 20, and the timing belt 53 connects the driving pulley 51 and the driven pulley 52. ​​Specifically, the drive device 40 drives one connecting shaft 20 to rotate, and the rotating driving pulley 51 drives the driven pulley 52 to rotate via the timing belt 53, thereby driving the other connecting shaft 20 to rotate. The four slider mechanisms 10 disposed on the two connecting shafts 20 operate synchronously.

[0042] In order to prevent the synchronous belt 53 from slipping with the driving pulley 51 or the driven pulley 52 during transmission, the pulley assembly 50 in this embodiment also includes a tensioning pulley 54. One end of the tensioning pulley 54 is fixed to the cargo hold floor 90, and the other end contacts the synchronous belt 53, which can tighten the synchronous belt 53 without affecting the transmission effect.

[0043] In some embodiments, the delivery device further includes two cargo limiting members 60, which are fixed to the cargo hold floor 90. Specifically, the cargo limiting members 60 are shaped like bridges, spanning two sliding block mechanisms 10 on the same side. The bottom ends of both ends are fixed to the cargo hold floor 90, and the bridge deck is erected on the carrying platform 30, allowing the carrying platform 30 to move freely beneath the bridge deck. It is understood that the function of the two cargo limiting members 60 is to initially limit the cargo, facilitating loading and delivery.

[0044] Furthermore, the delivery device also includes a position sensor 70, which is used to detect the position of any of the support platforms 30. Specifically, in this embodiment, the position sensor 70 is located at the end of the connecting shaft 20 to accurately reflect the status of the delivery device.

[0045] Because the contact area and friction coefficient between the carrier platform 30 and the goods are large when the goods are placed, the resistance to placement is relatively large. Therefore, in order to reduce the resistance when placing the goods, multiple balls 80 are installed on the carrier platform 30, so that the goods change from sliding on the carrier platform 30 to rolling during the placement process, thereby reducing the resistance during placement.

[0046] In other embodiments, in addition to providing ball bearings 80 to reduce resistance during delivery, the surface of the carrying platform 30 that contacts the goods can also be set as an arc surface.

[0047] The working principle of the dispensing device provided in this embodiment is as follows:

[0048] The delivery device is installed at the delivery port on the cargo hold floor 90. The cargo is loaded onto the delivery device's support platform 30. The two support platforms 30 are respectively installed on the left front and rear slider mechanisms 10 and the right side slider mechanisms 10. The right slider mechanism 12 is connected to the left slider mechanism 12 via a connecting shaft 20, and the right front and rear slider mechanisms 12 are driven by a synchronous belt 53. When the connecting shaft 20 rotates, the two support platforms 30 slide outward or inward synchronously. After the delivery command is issued, the drive device 40 operates. According to the position sensor 70, the left and right support platforms 30 move outward under the drive of the slider mechanisms 10 to the cargo delivery state, and the cargo is delivered by gravity.

[0049] The dispensing device provided in this embodiment has the following advantages:

[0050] In this embodiment, the connecting shaft 20 drives the two slider mechanisms 10 connected to its two ends to move synchronously, that is, to move closer or further away from each other, thereby enabling the two carrying platforms 30 set on the slider 12 to move synchronously. This design ensures that the two carrying platforms 30 operate synchronously, preventing the goods from tipping over during the delivery process. At the same time, universal ball bearings 80 are installed on the carrying platforms 30 to facilitate the loading and delivery of goods, and a position sensor 70 is installed to monitor the position information of the delivery device in real time.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dispensing device, characterized in that, It includes a pulley assembly, a slider mechanism, a connecting shaft, two support platforms, and a driving device. The two ends of the connecting shaft are respectively connected to the two slider mechanisms, and the two support platforms are respectively mounted on the two slider mechanisms. The driving device is used to drive the connecting shaft to rotate. The slider mechanism includes a fixed base mounted on the cargo hold floor and a slider connected to the connecting shaft. The bearing platform is mounted on the slider, and the slider is slidably mounted on the fixed base. The fixed base is also provided with a groove and two positioning rods. The slider is mounted in the groove and has two positioning holes. The two positioning rods pass through the two positioning holes respectively. The bearing platform is fixedly mounted above the two sliders on the same side. The two slider mechanisms on the same side are connected by the pulley assembly, which includes a driving pulley, a driven pulley, and a timing belt. The driving pulley and the driven pulley are respectively connected to the same end of the two connecting shafts, and the timing belt connects the driving pulley and the driven pulley. When the driving device drives one of the connecting shafts to rotate in the forward direction, the sliders connected to both ends of the two connecting shafts gradually move closer together, thereby driving the two bearing platforms closer together; when the driving device drives one of the connecting shafts to rotate in the reverse direction, the sliders connected to both ends of the two connecting shafts gradually move away from each other, thereby driving the two bearing platforms away from each other.

2. The dispensing device according to claim 1, characterized in that, The connecting shaft includes a torsion bar, two lead screws with opposite directions of rotation, and two couplings. The two lead screws are respectively disposed at both ends of the torsion bar through the couplings. The slider is provided with threaded holes, and the lead screws are disposed in the threaded holes.

3. The dispensing device according to claim 1, characterized in that, The slide block mechanism is provided in four parts, which are respectively located at the four corners of the rectangular feeding port, and the two opposite slide block mechanisms are connected by the connecting shaft.

4. The dispensing device according to claim 1, characterized in that, The pulley assembly also includes a tensioner, one end of which is fixed to the cargo hold floor and the other end of which contacts the timing belt.

5. The dispensing device according to claim 1, characterized in that, The delivery device also includes two cargo limiting components, which are fixed to the cargo hold floor.

6. The dispensing device according to claim 1, characterized in that, The delivery device also includes a position sensor for detecting the position of any of the carrier platforms.

7. The dispensing device according to claim 1, characterized in that, The support platform is equipped with multiple ball bearings.

8. An aircraft, characterized in that, Includes a dispensing device as described in any one of claims 1 to 7.

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