Patent Description:
With the continuous development of aircraft technology, more and more industries and individuals use an aircraft for transporting and delivering an object to be delivered. An existing aircraft usually uses the delivery device by an electronic control to lift the object to be delivered during the flight and to delivery it when the destination is reached.

Therefore, some aircraft use mechanical delivery devices for automatic delivery. Mechanical dropping devices often include a mounting part and a biasing part. During the transport of the aircraft, the mounting part lifts up the object to be delivered, the biasing part is deformed under the gravity of the obj ect to be delivered at the same time. When the aircraft arrives at the designated location and the object to be delivered touches the ground, the force exerted by the object to be delivered on the biasing part disappears, and the biasing part resets so that the object to be delivered is separated from the mounting part, thus completing automatic decoupling.

However, the aircraft has not lifted the object to be delivered when just hooking the piece to be delivered to the mounting part, and the object to be delivered is still in contact with the ground. At the same time, the object to be delivered is easily separated from the mounting part under the reset effect of the biasing part, and an operator needs to always press the object to be delivered, so that the usage experience and the transportation efficiency of the aircraft are influenced.

<CIT> relates to a UAV, which includes a chassis, a power supply mounted to the chassis, a control system operable to receive power from the power supply, at least one rotor operable to generate lift under control of the control system, and a winch mounted to the chassis. <CIT> relates to methods and systems for detecting and correcting errors when jacking up and lowering a payload coupled to a tether of a winch system arranged on a UAV. <CIT> and <CIT> relate to a hook with a safety latch.

The invention aims to provide a delivery device, which can realize the automatic delivery of the object, meanwhile it is easy to hook up the object to be delivered into the delivery device and ensures efficient transport of object to be delivered.

Therefore, the invention uses the following technical solutions:
A delivery device comprises:.

As a preferred solution of the delivery device, the first end of the blocking part can be connected to the biasing part. Either one of the mounting part and the second end of the blocking part can be provided with a clamping groove, and the other of them can be provided with a clamping part, which can be connected to the clamping groove so as to seal the mounting slot when the object to be delivered is hooked but not lifted. The biasing part can drive the blocking part to move so that the clamping part can be out of the clamping groove.

As a preferred solution of the delivery device, the first end of the blocking part can be pivotally connected with the biasing part.

As a preferred solution of the delivery device, the mounting part can be further provided with a sliding slot connected to the mounting slot, the biasing part can be set in the sliding slot.

As a preferred solution of the delivery device, the biasing part can include a connected reset member and a slider, the reset member can be located between the slider and the bottom of the sliding slot. The slider and the sliding slot can be matched glidingly and can touch the object to be delivered, the blocking part is connected to the slider.

As a preferred solution of the delivery device, the first end of the blocking part can be provided with two spaced apart lug parts, each of the lug parts can set a first connection hole. The slider can have a holding slot of which the two opposite side walls respectively can be provided with a second connection hole. The delivery device can further comprise a connecting shaft which can cross one of the second connection hole, two of the first connection holes and the other one of the second connection hole.

As a preferred solution of the delivery device, a first avoidance slot can be provided on the side wall of the sliding slot to avoid the blocking part when it slides with the slider.

As a preferred solution of the delivery device, the mounting part can include two shells arranged opposite, both the shells can form the sliding slot and the mounting slot.

The benefit of the invention:
The invention provides a delivery device, including a mounting part, a biasing part and a blocking part. The mounting part is provided with a mounting slot of which the opening extends upward. The object to be delivered can be hooked into the mounting slot. The biasing part is provided on the mounting part and is configured to deform under the gravity of the object to be delivered when it is lifted, which resets to drive the object to be delivered out of the mounting slot when the object to be delivered falls to the ground. The blocking part is connected to the biasing part and is configured to seal the opening of the mounting slot when the object to be delivered is not lifted and to open the opening of the mounting slot when the object to be delivered is lifted. The delivery device can realize the automatic dropping of the object to be delivered. And it can limit the position of object to be delivered which is prevented to fall out of the mounting slot when the object to be delivered is not lifted. The blocking part can open the opening of the mounting slot after lifting to enable the automatic unhooking of the object to be delivered after it falls to the ground, which makes the delivery device easy to use and efficient in transporting the to-be-dropped object.

Another purpose of the invention is to provide a delivery assembly which can realize the automatic delivery, meanwhile facilitate the hooking the object to be delivered and efficient in transporting.

Thus, the invention uses following technique solution:
A set of delivery assembly, an object to be delivered and the delivery device, the object to be delivered operably hangs on the object to be delivered.

The benefit of the invention:
The invention provides a set of delivery assembly, which delivery the object to be delivered by the delivery device. It can realize the automatic dropping of the object to be delivered. In the meantime, it is convenient to hook the object to be delivered, and efficient in transporting of the object to be delivered.

Another purpose of the invention is to provide an aircraft, which can realize the automatic dropping of the object to be delivered. Moreover, it is convenient to hook the object to be delivered, and efficient in transporting of the aircraft.

Hence, the invention adopts following technique solution:
An aircraft, includes an aircraft main body and the delivery device, the delivery device is connected to the aircraft main body.

The beneficial effect of the invention:
The invention provides an aircraft, which can drop the object to be delivered by the delivery device and realize the automatic dropping of the object to be delivered. Further, it is convenient to hook the object to be delivered, and efficient in transporting of the object to be delivered.

In order to make clearer the purpose, technical scheme and advantages of the embodiment of the invention, the technical scheme in the embodiment of the invention is further described below in a clear and complete manner in combination with the figures in the embodiment of the invention. Obviously, the described embodiment is part of the embodiments of the invention, not all of them. Generally, the components of the embodiments of the invention described and shown in the appended figures here can be arranged and designed in various configurations.

A delivery device of the embodiment is shown in the <FIG> and <FIG>. The delivery device includes a mounting part <NUM>, a biasing part <NUM> and a blocking part <NUM>. The mounting part <NUM> is provided with a mounting slot <NUM> of which the opening extends upward and is configured to hook the object to be delivered <NUM>. The biasing part <NUM> is provided on the mounting part <NUM> and is made to deform under the gravity of the object to be delivered <NUM> when it is lifted, which resets to drive the object to be delivered <NUM> out of the mounting slot <NUM> when the object to be delivered falls to the ground. The blocking part <NUM> is connected to the biasing part <NUM>. It is constructed to seal the opening of the mounting slot <NUM> when the object to be delivered <NUM> is not lifted and to open the opening of the mounting slot <NUM> when the object to be delivered <NUM> is lifted. Before delivering the object to be delivered <NUM>, hook the object to be delivered <NUM> to the mounting slot <NUM> firstly, the object to be delivered <NUM> is not lifted during this process. After the object to be delivered <NUM> closes to the outlet of the mounting slot <NUM>, then the blocking part <NUM> seals the mounting slot <NUM> to prevent the object to be delivered <NUM> to fall out of the mounting slot <NUM>. When the object to be delivered <NUM> is lifted, the object to be delivered <NUM> moves to the bottom of the mounting slot <NUM> and makes the biasing part <NUM> deform under the gravity of the object to be delivered <NUM>. Meanwhile, while the blocking part <NUM> opens the opening of the mounting slot <NUM>, the object to be delivered <NUM> touches the ground with the disappeared the force on the biasing part <NUM>. The biasing part <NUM> drives the object to be delivered <NUM> out of the delivery device from the mounting slot <NUM>. The delivery device can realize the automatic delivery of the object to be delivered <NUM>. It can limit the position of object to be delivered <NUM> by the blocking part <NUM> when the object to be delivered <NUM> is not lifted, so that the object to be delivered <NUM> will be prevented to fall out of the mounting slot <NUM>. It is no need for the operator to manually limit the position of the object to be delivered <NUM>. The blocking part <NUM> also can open the opening of the mounting slot <NUM> after the object to be delivered <NUM> has been lifted so that it can prevent interfering with the automatic unhooking of the object to be delivered <NUM> after landing. The delivery device is easy to use and can improve the transportation efficiency of the object to be delivered <NUM>.

It can be understood that the biasing part <NUM> can be connected or butted with the mounting part <NUM> and object to be delivered <NUM> respectively, which provides the object to be delivered <NUM> with a reset function when it lands.

Further, the included angle between the extending direction of the mounting slot <NUM> and the vertical direction is <NUM>° -<NUM>°. On one hand, reliable transportation of the object to be delivered <NUM> can be ensured and prevents the object to be delivered <NUM> to be out of the mounting slot <NUM>. On the other hand, when the object to be delivered <NUM> touches the ground, it can be smoothly separated from the mounting slot <NUM> under the reset function of the biasing part <NUM>.

Specifically, the first end of the blocking part <NUM> is connected to the biasing part <NUM>, either one of the mounting part <NUM> and the second end of the blocking part <NUM> is provided with a clamping groove <NUM>, and the other of them is provided with a clamping portion <NUM>.

When the object to be delivered <NUM> is not lifted, the clamping part <NUM> can be engaged with the clamping groove <NUM> to seal the mounting slot <NUM>. When the object to be delivered <NUM> is lifted, the biasing part <NUM> can drive the blocking part <NUM> to move so that the clamping part <NUM> can be out of the clamping groove <NUM>. When the object to be delivered <NUM> is not lifted, the deformation degree of the biasing part <NUM> is small. While the object to be delivered <NUM> is close to the outlet of the mounting, the clamping part <NUM> can be engaged with the clamping groove <NUM> to seal the opening of the mounting groove <NUM>. It can prevent the object to be delivered <NUM> to be out of the mounting slot <NUM>. When the object to be delivered <NUM> is lifted, the biasing part <NUM> is deformed to a large extent under the gravity of the object to be delivered <NUM>. The biasing part <NUM> drives the blocking part to move, which make the clamping part <NUM> be out of the clamping groove <NUM>. Then the opening of the mounting slot <NUM> could be opened.

In this embodiment, the mounting part <NUM> is provided with a clamping groove <NUM>. The second end of the blocking part <NUM> sets the clamping part <NUM>, which can conveniently clamp the second end of the stop <NUM> to the mounting part <NUM>.

Further, the clamping groove <NUM> is arranged above the mounting slot <NUM> and the opening direction of the clamping groove <NUM> is downward, which can further facilitate the separation of the clamping part <NUM> from the clamping groove <NUM> after the object to be delivered <NUM> is lifted.

Optionally, the first end of the blocking part <NUM> is rotatably connected to the biasing part <NUM>. When the object to be delivered <NUM> is not lifted, the blocking part <NUM> can rotate and be engaged with the clamping groove <NUM>. When the object to be delivered <NUM> is lifted, the biasing part <NUM> drives the blocking part <NUM> to separate from the clamping groove <NUM>. At the same time, under the action of the gravity of the blocking part <NUM>, the second end of the blocking part <NUM> rotates downward, which does not affect the automatic delivery of the object to be delivered <NUM>.

Certainly, the connection mode of the blocking part <NUM> and the biasing part <NUM> art not limited thereto, and in other embodiment, the blocking part <NUM> may further be a structure such as an elastic arm, the first end of the elastic arm is fixedly connected to the biasing part <NUM>, and the second end of the elastic arm can be engaged with the clamping groove <NUM>, which may be set according to actual usage requirements, which is not limited in this embodiment.

Below is the introduction for the biasing part <NUM>.

In this embodiment, the mounting part <NUM> is further provided with a sliding groove <NUM> in communication with the mounting slot <NUM>. The biasing part <NUM> is disposed in the sliding slot <NUM> and can abut against the object to be delivered <NUM>, and by additionally providing the sliding slot <NUM> to accommodate the biasing part <NUM>. The mounting slot <NUM> can provide a limiting effect on the object to be delivered <NUM>, i.e., the object to be delivered <NUM> can be hooked to the bottom of the mounting slot <NUM>, and the arrangement of the sliding slot <NUM> can further reduce the weight of the delivery device.

Of course, the arrangement position of the biasing part <NUM> is not limited thereto. In other embodiment, the biasing part <NUM> can also be arranged in the mounting slot <NUM>, and the two ends of the biasing part <NUM> can abut against the bottom of the mounting groove <NUM> and the object to be delivered <NUM>, respectively. It can be set according to actual requirements, which is not limited in this embodiment.

Further, the sliding slot <NUM> extends vertically. Comparing with the condition that the sliding slot <NUM> extends at an included angle with the horizontal direction, the sliding slot <NUM> with a larger size can be obtained when the size of the mounting part <NUM> is fixed, a large mounting space can be provided for the biasing part <NUM>, and the weight of the delivery device is further reduced.

Optionally, as shown in <FIG>, the biasing part <NUM> includes a connected reset member <NUM> and a slider <NUM>. The reset member <NUM> is located between the slider <NUM> and the bottom of the sliding slot <NUM>. The slider <NUM> matches with the sliding slot <NUM> by a sliding method and can be butted with the object to be delivered <NUM>. The blocking part <NUM> is connected to the slider <NUM>. The slider <NUM> is connected with the object to be delivered <NUM>, which can ensure the reliability and stability of the connection between the biasing part <NUM> and the object to be delivered <NUM>, and ensure that object to be delivered <NUM> can automatically unhook when it lands. The side wall of the sliding slot <NUM> can be provided with a first avoidance slot <NUM> to avoid the blocking <NUM> when the blocking <NUM> slides with the slider <NUM>.

Specifically, as shown in <FIG>, the first end of the blocking part <NUM> is provided with two spaced apart lug parts <NUM>, each of the lug parts <NUM> sets a first connection hole. The slider <NUM> has a holding slot <NUM> of which the two opposite side walls respectively is provided with a second connection hole. The delivery device further comprises a connecting shaft, which crosses one of the second connection hole, two of the first connection holes and the other one of the second connection hole. Thus the rotary connection between the blocking part <NUM> and the slider <NUM> come true. Wherein, since two lug parts <NUM> are arranged, when installing the blocking part <NUM>, the two lug parts can be installed on the slider <NUM> easily as they can be slightly close to each other under the action of external forces. In addition, the arrangement of the two lug parts is also conducive to reduce the overall weight of the delivery device.

Further, the reset member <NUM> could be a spring.

It can be understood that the reset member <NUM> has a preset stiffness, so that the reset member <NUM> can be compressed under the gravity of the object to be delivered <NUM> in during the transportation, and the object to be delivered <NUM> can be close to the bottom of the mounting slot <NUM> with good transportation reliability. When the object to be delivered <NUM> contacts the ground, the reset function of the reset member <NUM> can also make the object to be delivered <NUM> separate from the mounting slot <NUM>, thus realizing automatic decoupling.

Further, the slider <NUM> is provided with a guide hole, and one end of the reset member <NUM> closed to the slider <NUM> is arranged in the guide hole and can be contacted to the top wall of the guide hole. On one hand, the reset member <NUM> can be limited to ensure the reset effect for the reset number <NUM>, so that the object to be delivered <NUM> can automatically unhook. On the other hand, the connection between the reset member <NUM> and the slider <NUM> can be simply realized, reducing the number of parts used for connection, and the manufacturing cost of the dropping device is.

In order to further improve the guiding effect on the reset member <NUM>, the biasing part <NUM> also includes a guiding element <NUM>, which is arranged at the bottom of the mounting slot <NUM>, and the end of the reset member <NUM> away from the slider <NUM> is set on the guiding element <NUM>, which can further improve the guiding effect on the reset member <NUM> and thus further ensure the reset effect of the reset member <NUM>. It is to be understood that the guiding element <NUM> does not affect the travel of the slider <NUM> along the vertical direction because the guiding element <NUM> can extend into the guide hole when the slider <NUM> moves down.

Specifically, the guiding element <NUM> comprises a threaded member and a guide member connected in sequence, the mounting part <NUM> is provided with a second threaded hole, the threaded member is threaded with the second threaded hole, the reset member <NUM> is sleeved on the guide member, The connection between the guiding element <NUM> and the mounting part <NUM> is achieved by means of the threaded fit, which facilitates the assembly of the delivery device and reduces the manufacturing and processing costs.

Furthermore, the number of the reset member <NUM> is at least two, and each reset member <NUM> is connected to the slider <NUM> to improve the stability of the slider <NUM> when sliding in the mounting slot <NUM>, so as to further improve the contact stability and reliability of the slider <NUM> and the object to be delivered <NUM>. In this embodiment, the number of reset member <NUM> is two, the two reset members <NUM> are spaced in the mounting slot <NUM>, and the guide hole and guiding element <NUM> are respectively arranged in one-to-one correspondence with the reset member <NUM>.

Moreover, as shown in <FIG>, one of the side wall of slider <NUM> and the side wall of the sliding slot <NUM> is provided with a projection <NUM>, and the other of the side wall of the slider <NUM> and the side wall of the sliding slot <NUM> is provided with a guide groove <NUM>. The projection <NUM> can slide and fit into the guide groove <NUM> to further guide the sliding of the slider <NUM>, thereby increasing the sliding stability of the slider <NUM> and ensuring the butting effect of the object to be delivered <NUM>.

In this embodiment, at least two projections <NUM> are arranged on both sides of the slider <NUM>, and guide grooves <NUM> are arranged on the opposite two side walls of the sliding slot <NUM>. Each projection <NUM> can slide into the corresponding guide groove <NUM> to further improve the guiding effect on the slider <NUM>.

Moreover, a second avoidance slot <NUM> is provided on the upper side wall of the mounting slot <NUM> to avoid the sliding of the slider <NUM>, so as to ensure the automatic decoupling effect of the object to be delivered <NUM>, in addition to the arrangement of the second avoidance slot <NUM> is provided to further reduce the weight of the dropping device.

Moreover, the mounting part <NUM> comprises two shells set opposite to each other. The two shells are enclosed to form the sliding slot <NUM>, the mounting slot <NUM> and the second avoidance slot <NUM>. It can facilitate the processing and assembly of the biasing part <NUM>.

Specifically, one of the housings is provided with at least a first threaded hole and the other housing is provided with a through-hole corresponding to the first threaded hole, and delivery device further comprises a fastener <NUM>, which can pass through the through-hole and fit into the first threaded hole, so as to realize the connection of the two housings.

Based on Embodiment <NUM>, this embodiment provides a delivery assembly which comprises an object to be delivered <NUM> and a delivery device as described in Embodiment <NUM>. The object to be delivered <NUM> is operably hooked onto the delivery device. The delivery assembly can realize automatic delivery of the object to be delivered <NUM>, and also enables easy hooking of the object to be delivered <NUM> to the delivery device and efficient transportation of the object to be delivered <NUM>.

Wherein, the object to be delivered <NUM> can be a cargo compartment, a rescue cabin or a cargo to be transported, and can be set according to actual usage. The present embodiment is not limited in this respect.

Based on embodiment <NUM>, this embodiment provides an aircraft, which includes the aircraft main body and the delivery device as described in embodiment <NUM>. The aircraft enables the automatic delivery of the object to be delivered and also facilitates the hookup operation of the object to be delivered, the aircraft has a high transport efficiency.

Moreover, the number of delivery devices may be at least two, each of which is connected to the aircraft main body to increase the transport capacity of the aircraft and extend the range of usage of the aircraft.

It could be understood each delivery device can be used to lift or drop an object to be delivered <NUM>, and each delivery device can also be used to lift or drop at least two objects to be delivered <NUM>. It can be arranged according to the actual transport needs. This is not limited by this example.

In the description of this specification, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and other indicating orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, only to facilitate the description of this embodiment and simplified description, rather than indicating or implying that the device or structure referred to must have a specific orientation, the structure by a special operated or in a specific orientation, so it cannot be understood as a limitation to the utility model. In addition, the terms "first" and "second" are only used to describe the purpose and cannot be understood as indicating or implying the importance level. The terms "first position" and "second position" are two different positions.

In the description of this specification, referring to the description of the terms "one embodiment", "example" and the like, it means that the specific features, structures, material or features described in combination with this embodiment or example are included in at least one embodiment or example of this utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or examples.

Unless otherwise specified regulation and defined limitation, the terms "installation", "communication", "connection" and "fixed" shall be understood broadly, for example, they can be fixed connections or removable connections; It can be mechanical connection or electrical connection It can be directly connected or indirectly connected through intermediate media. It can be the internal connection of two components or the interaction between two components. For ordinary technicians in the field, the specific meaning of the above terms in the invention can be understood according to the specific case.

Claim 1:
A delivery device, which comprises:
a mounting part (<NUM>), is provided with a mounting slot (<NUM>) of which an opening extends upward and is configured to hook an object to be delivered (<NUM>),
a biasing part (<NUM>), is provided on the mounting part (<NUM>) and is made to deform under the gravity of the object to be delivered (<NUM>) when it is lifted, which resets to drive the object to be delivered (<NUM>) out of the mounting slot (<NUM>) when the object to be delivered (<NUM>) falls to the ground, and characterized by
a blocking part (<NUM>), which is connected to the biasing part (<NUM>) and is constructed to seal the opening of the mounting slot (<NUM>) when the object to be delivered (<NUM>) is hooked but not lifted and to open the opening of the mounting slot (<NUM>) when the object to be delivered (<NUM>) is lifted.