Material dispenser suitable for unmanned aerial vehicle

Abstract

The utility model discloses a material dispenser suitable for an unmanned aerial vehicle, the stress of the material dispenser is dispersed at two points, and automatic dispensing and manual dispensing can be realized. Comprising a material frame body, a dispenser seat body and a material box, the material box is fixed to the lower portion of the material frame body, the material frame body is provided with a bent inclined face and a stress contact face, the bottom of one end of the dispenser seat body is provided with a protruding inclined face, the protruding inclined face is used for being matched with the bent inclined face on the material frame body for positioning, and the other end of the dispenser seat body is provided with an unlocking cam, a hook and a steering engine; the steering engine has a self-locking function, the unlocking cam is in power connection with the steering engine, the hook is hinged to the dispenser seat body, the hook is provided with a driving arm, a hanging arm and a handle, an L-shaped hook plane is arranged on the hanging arm, a reset spring is arranged between the dispenser seat body and the hanging arm, and the L-shaped hook plane and a stress contact surface on a material frame body are positioned in a matched mode. The unlocking cam and the handle are both used for driving the hook to rotate for unlocking.

Description

Technical Field

[0001] This utility model relates to the field of intelligent equipment technology, and in particular to a material delivery device suitable for unmanned aerial vehicles (UAVs). Background Technology

[0002] An aerial supply dispenser is a device that uses a drone as a platform to deliver supplies to a designated area. It is used in military, emergency rescue, and other fields, and is an important part of intelligent equipment applications. The structure of the supply dispenser directly affects its delivery efficiency and service life. Currently available aerial supply dispensers are single-sided, relying on a single hook to support the weight of the entire supply container. This results in drawbacks such as high power requirements for the control motors, stress concentration at hook bends, and unbalanced force distribution within the dispenser.

[0003] To improve the service life of the delivery mechanism and make better use of the servo motor efficiency, it is essential to design a material delivery device suitable for the force balance of UAVs. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a material dispenser suitable for UAVs. The material dispenser distributes the force at two points, reducing the power required by the servo motor, and has both automatic and manual dispensing modes.

[0005] The purpose of this utility model is achieved as follows:

[0006] A supply dispenser suitable for unmanned aerial vehicles (UAVs) includes a supply frame, a dispenser base, and a supply box. The supply box is fixed below the supply frame. The supply frame has a bent inclined surface and a force-bearing contact surface. The dispenser base is located above the supply frame. One end of the dispenser base has a raised inclined surface at its bottom, which is used to engage with the bent inclined surface on the supply frame for positioning. The other end of the dispenser base is equipped with an unlocking cam, a hook, and a servo motor. The servo motor has a self-locking function. The unlocking cam is poweredly connected to the servo motor. The hook is hinged to the dispenser base and has a drive arm, a hooking arm, and a handle. The hooking arm has an "L"-shaped hook plane. The unlocking cam is located below the drive arm. A return spring is provided between the dispenser base and the hooking arm. Under the action of the return spring, the "L"-shaped hook plane engages with the force-bearing contact surface on the supply frame for positioning.

[0007] Both the unlocking cam and the handle are used to drive the hook to rotate. When the hook rotates to the unlocking position, the "L"-shaped hook plane disengages from the force-bearing contact surface on the material rack.

[0008] Preferably, the material box is fixed to the material rack by material box straps.

[0009] Preferably, the servo motor is fixed to the dispenser base with screws, and the unlocking cam is directly connected to the servo motor.

[0010] Preferably, the material rack has an internal cavity, the bending slope and the force-bearing contact surface are provided on the cavity wall of the material rack, and the top of the cavity has an opening for the protruding slope on the delivery seat and the drive arm on the hook to extend into.

[0011] Preferably, the dispenser base is provided with a first reset spring hole, and the hook arm is provided with a second reset spring hole, with both ends of the reset spring positioned and installed in the first reset spring hole and the second reset spring hole.

[0012] Preferably, the dispenser base is provided with a limiting inner groove, and the handle of the hook is fitted into the limiting inner groove, which is used to limit the rotation angle of the handle.

[0013] Preferably, the unlocking cam has a flat section, and when the hook rotates to the unlock position, the unlocking cam provides planar support to the drive arm of the hook through this flat section.

[0014] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0015] 1. This invention, by setting the protruding inclined surface of the dispensing seat and the "L"-shaped hook plane of the hook, distributes the force of the material dispenser to two points, thereby reducing the power required by the servo motor;

[0016] 2. This material dispenser has two modes: automatic and manual. The entire mechanism can be operated with a single power source, making it simple, fast, and ergonomic.

[0017] 3. It has the advantages of simple structure, stable function and convenient operation. The entire dispenser is an independent module with strong applicability. It can be modularly installed on various types of drones and has a wide range of platform application value. Attached Figure Description

[0018] Figure 1 This is a diagram of the material dispenser system of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation structure of the material dispenser of the present invention;

[0020] Figure 3 This is a schematic diagram of the material dispenser base structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the unlocking cam structure of the material dispenser of the present invention;

[0022] Figure 5 This is a schematic diagram of the hook structure of the material dispenser of the present invention;

[0023] Figure 6 This is a schematic diagram of the transportation status of the material dispenser of the present invention;

[0024] Figure 7 This is a schematic diagram of the material dispenser's dispensing status according to the present invention;

[0025] Figure 8 This is a schematic diagram of the material dropping state of the material dispenser of the present invention;

[0026] Figure 9 This is a schematic diagram of manually loading materials into the material dispenser of the present invention.

[0027] Figure Labels

[0028] In the attached diagram, 1 is the material rack, 2 is the dispenser base, 3 is the reset spring, 4 is the unlocking cam, 5 is the hook, 6 is the material box strap, 7 is the material box, and 8 is the servo motor.

[0029] 101 is the inclined plane of the bend, and 102 is the contact surface under stress.

[0030] 201 is a raised inclined surface, 202 is the first reset spring hole, and 203 is the limiting inner groove hole.

[0031] 401 is a convex surface.

[0032] 501 is the "L" shaped hook plane, 502 is the handle, and 503 is the second return spring hole. Detailed Implementation

[0033] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] See Figures 1-9 A supply dispenser for unmanned aerial vehicles (UAVs) includes a supply rack 1, a dispenser base 2, and a supply box 7. The supply box 7 is fixed below the supply rack 1. The supply rack 1 has a bending inclined surface 101 and a force-bearing contact surface 102. The dispenser base 2 is located above the supply rack 1. One end of the dispenser base 2 has a protruding inclined surface 201 at its bottom, which is used to cooperate with the bending inclined surface 101 on the supply rack 1 for positioning. The other end of the dispenser base 2 is equipped with an unlocking cam 4. The device includes a hook 5, a servo motor 8, and a hook 5 hinged to the delivery base 2. The hook 5 has a drive arm, a hook arm, and a handle 502. The hook arm has an "L"-shaped hook plane 501. The unlocking cam 4 is located below the drive arm. A return spring 3 is provided between the delivery base 2 and the hook arm. Under the action of the return spring 3, the "L"-shaped hook plane 501 is positioned in conjunction with the force-bearing contact surface 102 on the material rack 1.

[0035] Both the unlocking cam 4 and the handle 502 are used to drive the hook 5 to rotate. When the hook 5 rotates to the unlock position, the "L"-shaped hook plane 501 disengages from the force-bearing contact surface 102 on the material rack 1, and the protruding inclined surface 201 on the delivery seat 2 disengages from the bent inclined surface 101 on the material rack 1.

[0036] The material rack 1 has a cavity inside. The bending inclined surface 101 and the force-bearing contact surface 102 are set on the cavity wall of the material rack 1. The top of the cavity is provided with an opening for the protruding inclined surface 201 on the delivery seat 2 and the drive arm on the hook 5 to extend into.

[0037] The dispenser base 2 is provided with a first reset spring hole 202, and the hook arm of the hook 5 is provided with a second reset spring hole 503. The two ends of the reset spring 3 are positioned and installed in the first reset spring hole 202 and the second reset spring hole 503.

[0038] The unlocking cam 4 has a flat surface. When the hook 5 rotates to the unlock position, the unlocking cam 4 provides planar support to the drive arm of the hook 5 through this flat surface.

[0039] Specifically:

[0040] The material rack 1 is an important connecting component of the dispenser, connecting the dispenser base 2 at the top and the material box 7 at the bottom. The dispenser base 2 is the main connecting body for the dispensing mechanism's moving parts, and it is equipped with an unlocking cam 4, a hook 5, and a servo motor 8. One end of the return spring 3 is placed in the first return spring hole 202 in the dispenser base 2, and the other end is placed in the second return spring hole 503 in the hook 5. The return spring 3 is compressed and reset as the dispenser moves. The unlocking cam 4 is directly connected to the servo motor 8, and rotates within the working angle under the drive of the servo motor 8, pushing the hook 5 to rotate, compressing the return spring 3, and completing the "dispensing" action. The hook 5 is hinged to the dispenser base 2 by a pin and can rotate freely. The material box 7 is fixed to the material rack 1 by four material box straps 6. The servo motor 8 is fixed to the dispenser base 2 by screws.

[0041] The dispenser base 2 has a raised inclined surface 201 on its side. The hook 5 can be clamped to the material rack 1 from both sides through the "L" hook plane 501 and the raised inclined surface 201 to prevent it from sliding down, thus realizing the function of the dispenser as a "transportation material box".

[0042] The hook 5 has a handle 502 at one end, which can be used to rotate the hook 5 by pressing the handle 502 to load / unload the material rack 1 and the material box 7, realizing the "manual loading / dispatch" function. The dispenser base 2 is provided with a limiting inner slot 203 to limit the rotation angle of the handle 502.

[0043] The working process of this invention:

[0044] Transportation process: See Figure 6 The supply box 7 is suspended on the dispenser base 2 via the supply rack 1. The unlocking cam 4 will not rotate due to vibration during transportation because of the self-locking function of the servo motor 8, which restricts the rotation of the hook 5. Furthermore, the protruding inclined surface 201 of the dispenser base 2 and the "L"-shaped hook surface 501 of the hook lock the supply rack 1, thereby fixing the supply box to prevent it from falling.

[0045] Automatic delivery process: See Figures 7-8 When the drone reaches the designated location, the main controller issues a command to control the servo motor 8 to rotate 60° clockwise. The servo motor 8, which is fixed to the unlocking cam 4, also rotates 60° clockwise to the unlocked position. The convex surface 401 in the unlocking cam 4 pushes the hook 5 to rotate 9.5° clockwise around its fixing pin, causing the "L"-shaped hook surface 501 to detach from the material rack 1. Due to gravity, the material box 7 tends to fall downwards. The part of the material rack 1 that is bound to it and the part in contact with the "L"-shaped hook surface 501 falls, and the part in contact with the protruding inclined surface 201 of the dispenser seat 2 slides down the inclined surface 201 until it is completely detached from the dispenser seat 2, completing the automatic delivery action. While the hook 5 is rotating, the return spring 3 is compressed. After the material box 7 is delivered, the return spring 3 springs back, the servo motor 8 rotates 60° counterclockwise, and the hook 5 returns to its original position.

[0046] Manual loading process: See Figure 9 After securing the material box 7 to the material rack 1 with the straps 7, tilt the material box 7, place the dispenser base 2 on the raised inclined surface 201, press the hook handle 502 to tilt the "L"-shaped hook plane 501, straighten the material box 7, release the handle 502, so that the force-bearing contact surface 102 of the material rack contacts the "L"-shaped hook plane 501, and the raised inclined surface 201 and the "L"-shaped hook plane 501 lock the material rack 1, thus completing the loading of materials.

[0047] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A material delivery device suitable for unmanned aerial vehicles (UAVs), characterized in that: The utility model relates to a material supply device, which comprises a material rack, a dispenser seat and a material box, wherein the material box is fixed below the material rack, the material rack is provided with a bending slope and a stress contact surface, the dispenser seat is located above the material rack, one end of the dispenser seat is provided with a protruding slope, the protruding slope is used for positioning with the bending slope on the material rack, the other end of the dispenser seat is provided with an unlocking cam, a hook and a rudder, the rudder has a self-locking function, the unlocking cam is connected with the rudder, the hook is hinged on the dispenser seat, the hook is provided with a driving arm, a hooking arm and a handle, the hooking arm is provided with an "L"-shaped hooking plane, the unlocking cam is located below the driving arm, a reset spring is arranged between the dispenser seat and the hooking arm, under the action of the reset spring, the "L"-shaped hooking plane is positioned with the stress contact surface on the material rack, the unlocking cam and the handle are used for rotating the hook, when the hook is rotated to an unlocking position, the "L"-shaped hooking plane is separated from the stress contact surface on the material rack. 2.The goods delivery device for UAV according to claim 1, wherein: The material box is fixed on the material rack by a material box binding belt. 3.The goods delivery device for UAV of claim 1, wherein: The rudder is fixed on the dispenser seat by a screw, and the unlocking cam is directly connected with the rudder.

4. The supply dropping device for unmanned aerial vehicle according to claim 1, wherein: The material rack has a cavity, the bending slope and the stress contact surface are arranged on the cavity wall of the material rack, the cavity is provided with an opening at the top, the opening is used for the protruding slope on the dispenser seat and the driving arm on the hook to extend into.

5. The supply dropping device for unmanned aerial vehicle according to claim 1, wherein: The dispenser seat is provided with a first reset spring hole, the hooking arm of the hook is provided with a second reset spring hole, and the two ends of the reset spring are positioned and installed in the first reset spring hole and the second reset spring hole.

6. The supply dropping device for unmanned aerial vehicle according to claim 1, wherein: The dispenser seat is provided with a limiting inner groove hole, the handle of the hook is matched in the limiting inner groove hole, and the limiting inner groove hole is used for limiting the rotation angle of the handle.

7. The supply dropping device for unmanned aerial vehicle according to claim 1, wherein: The unlocking cam is provided with a flat surface, when the hook is rotated to the unlocking position, the unlocking cam forms a flat support for the driving arm of the hook through the flat surface.

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