Novel folding four-rotor patrol bomb capable of bouncing by one key

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to a one-key pop-up novel folding four-rotor patrol bomb which comprises a center mounting seat, a locking assembly and an unlocking assembly. A plurality of support arms are annularly distributed on the central mounting seat; and a torsional spring is connected between the support arm and the central mounting seat. When the resistance of the torsional spring is overcome to enable the support arm to rotate downwards to a vertical state, the locking assembly limits the rotation of the rotating arm, and the power motor and the paddle are stored in the storage cavity, so that the whole unmanned aerial vehicle body is similar to a cylinder and has no convex part, the portability is increased, and the risk that the unmanned aerial vehicle body is easy to damage during carrying and transportation is avoided; when unfolding is needed, the unlocking assembly unlocks the locking assembly in a one-key mode, the rotation capacity of the supporting arms is restored, the multiple supporting arms rapidly rotate upwards to be popped out under the action of the torsional springs, one-key simultaneous opening is achieved, and the flight preparation time is greatly shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and particularly relates to a new type of foldable quadrotor cruise missile that can be popped up with one key. Background Art

[0002] In recent years, small foldable unmanned aerial vehicles have been widely used in fields such as reconnaissance and target strikes due to their strong mobility and flexible deployment. To improve portability and transportation efficiency, the technology of foldable unmanned aerial vehicles has become a research hotspot. In the prior art, the arms of the unmanned aerial vehicle can be folded, but the motors and propellers are still exposed outside, resulting in easy damage due to collision during transportation. Moreover, when unfolding the folded unmanned aerial vehicle, it is necessary to manually unfold multiple arms one by one, and the unfolding time is more than 30 seconds, which is difficult to meet the requirements of rapid response in special occasions.

[0003] In summary, the existing foldable unmanned aerial vehicles mainly achieve volume compression through arm folding, but generally have problems such as incomplete folding and low unfolding efficiency. Summary of the Invention

[0004] The present invention provides a new type of foldable quadrotor cruise missile that can be popped up with one key to solve the above problems.

[0005] A new type of foldable quadrotor cruise missile that can be popped up with one key of the present invention adopts the following technical solutions: a new type of foldable quadrotor cruise missile that can be popped up with one key, including a central mounting base, a locking component, and an unlocking component;

[0006] The central mounting base is in the shape of a disk with a vertical axis and is fixed to the upper end of the unmanned aerial vehicle body; the housing of the unmanned aerial vehicle body is fixed on the central mounting base; an accommodation cavity is provided inside the housing; a plurality of arms are annularly distributed on the central mounting base; the arms are arranged along the radial direction of the central mounting base, one end of each arm is rotatably mounted on the central mounting base around a horizontal axis, and the other end is provided with a power motor; a torsion spring is connected between the arm and the central mounting base; the torsion spring keeps the arm horizontal; the power motor is fixed to the lower end of the arm; a rotating frame is fixed to the output shaft of the power motor; two symmetrically arranged mounting shafts are fixed to the rotating frame; propellers are provided on the mounting shafts; one end of each propeller is rotatably mounted on the mounting shaft;

[0007] The locking component is used to limit the rotation of the rotating arm and retract the power motor and the propellers into the accommodation cavity when the arm is rotated downward to the vertical state against the resistance of the torsion spring, making the entire unmanned aerial vehicle body similar to a cylindrical shape without protruding parts, increasing portability and avoiding the risk of easy damage to the unmanned aerial vehicle body during carrying and transportation;

[0008] The unlocking component is used to unlock the locking component with one key, enabling the arm to regain the ability to rotate, so that under the action of the torsion spring, multiple arms quickly rotate upward and pop out, realizing simultaneous opening with one key, greatly reducing the flight preparation time.

[0009] Further, there are multiple locking components, and each locking component corresponds to one support arm; the locking component includes a locking plate and a locking hole;

[0010] There are two locking plates, symmetrically arranged on both sides of the support arm and symmetrically distributed on both sides of the central mounting seat in the radial direction; the locking plates are fixed on the central mounting seat; a threaded ball catch is provided inside the locking plate; the threaded ball catch includes a sleeve; the axis of the sleeve is parallel to the rotation axis of the support arm; the opening of the sleeve faces the support arm; a ball is slidably mounted at one end of the sleeve close to the support arm; a compression spring is connected between the ball and the sleeve; the locking hole is provided on the support arm. When overcoming the resistance of the torsion spring to make the support arm rotate downward to the vertical state and when the support arm completely enters the accommodation cavity inside the housing, the threaded ball catch will snap into the locking hole of the support arm, and the support arm is locked, completing the entry into the folded state.

[0011] Further, the threaded ball catch adopts an M5 type threaded ball catch.

[0012] Further, the unlocking component includes a driving rod, a driven rod, and a cooperating rod;

[0013] The driving rod is arranged below the central mounting seat; the axis of the driving rod is arranged along the radial direction of the central mounting seat and is slidably mounted on the central mounting seat along the radial direction of the central mounting seat; a spring is connected between the driving rod and the central mounting seat; one end of the driving rod extends outside the housing and is set as the unlocking end; a wedge block is fixed in the middle of the driving rod;

[0014] The cooperating rod is coaxially arranged below the central mounting seat and is located below the driving rod; a vertical shaft sleeve is fixed on the lower end face of the central mounting seat; the cooperating rod is slidably mounted up and down in the vertical shaft sleeve on the central mounting seat and a spring is connected between the cooperating rod and the vertical shaft sleeve; both the upper and lower ends of the cooperating rod are semi-circular; the upper end of the cooperating rod abuts against the wedge-shaped wall of the wedge block on the driving rod;

[0015] There are multiple driven rods, circumferentially distributed along the central mounting seat; the driven rods are arranged along the radial direction of the central mounting seat and are slidably mounted on the central mounting seat along the radial direction of the central mounting seat; the driven rods are arranged at the lower end of the cooperating rod; a spring is connected between the driven rods and the central mounting seat; one end of the driven rod close to the axis of the central mounting seat is arc-shaped and abuts against the lower end of the cooperating rod, and the other end of the driven rod far from the axis of the central mounting seat is set as the triggering end; the triggering end of the driven rod abuts against the support arm when the support arm is received into the accommodation cavity. When it is necessary to unlock the locking component with one key, press the unlocking end, drive the cooperating rod to move downward through the wedge block, the cooperating rod drives the driven rod to push the support arm in the direction away from the axis of the central mounting seat, overcoming the elastic force of the compression spring in the threaded ball catch, unlocking the support arm, and under the elastic force of the torsion spring, multiple support arms will quickly bounce open simultaneously and enter the waiting-for-flight state, completing one-key rapid deployment to quickly enter the waiting-for-flight state.

[0016] Further, there are four support arms.

[0017] Further, a flight control board, an electronic speed controller board, a receiver, a video transmission module and a bracket are fixed on the central mounting seat; a GPS is fixed on the bracket.

[0018] Further, a protective cover is sleeved outside the GPS; the protective cover is fixed on the central mounting seat.

[0019] The beneficial effects of the present invention are as follows: when overcoming the resistance of the torsion spring to make the support arm rotate downward to the vertical state, the locking component restricts the rotation of the rotating arm and retracts the power motor and the propeller into the storage cavity, making the whole UAV body similar to a cylindrical shape without protruding parts, increasing portability and avoiding the risk of easy damage of the UAV body during carrying and transportation; when deployment is needed, the unlocking component unlocks the locking component with one key, enabling the support arm to restore its rotation ability, so that under the action of the torsion spring, multiple support arms quickly rotate upward and pop out, realizing simultaneous opening with one key, greatly reducing the flight preparation time. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of a novel foldable four-rotor cruise missile with one-key pop-up of the present invention;

[0022] Figure 2 It is a schematic diagram of the central mounting seat and the support arm of an embodiment of a novel foldable four-rotor cruise missile with one-key pop-up of the present invention;

[0023] Figure 3 It is a schematic diagram of the unlocking component of an embodiment of a novel foldable four-rotor cruise missile with one-key pop-up of the present invention;

[0024] Figure 4 It is a front view of the unlocking component of an embodiment of a novel foldable four-rotor cruise missile with one-key pop-up of the present invention;

[0025] Figure 5 It is a state diagram of the propeller being stored in an embodiment of a novel foldable four-rotor cruise missile with one-key pop-up of the present invention;

[0026] Figure 6 It is a state diagram of the support arm being retracted into the casing in an embodiment of a novel foldable four-rotor cruise missile with one-key pop-up of the present invention.

[0027] In the figure: 100, UAV body; 200, central mounting base; 210, protective cover; 300, support arm; 310, torsion spring; 320, propeller blade; 410, locking hole; 420, locking plate; 510, driving rod; 511, wedge block; 520, driven rod; 530, mating rod; 600, threaded ball catch; 700, vertical shaft sleeve. Detailed implementation mode

[0028] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] An embodiment of a novel foldable four-rotor cruise missile that can be popped up with one key according to the present invention is as Figures 1 to 6 shown. A novel foldable four-rotor cruise missile that can be popped up with one key includes a central mounting base 200, a locking assembly and an unlocking assembly.

[0030] The central mounting base 200 is in the shape of a disc with a vertical axis and is fixed to the upper end of the UAV body 100; the housing of the UAV body 100 is fixed on the central mounting base 200; a receiving cavity is provided inside the housing; a plurality of support arms 300 are annularly distributed on the central mounting base 200; preferably, there are four support arms 300. The support arms 300 are arranged radially along the central mounting base 200. One end of the support arm 300 is rotatably mounted on the central mounting base 200 around a horizontal axis, and the other end is provided with a power motor; a torsion spring 310 is connected between the support arm 300 and the central mounting base 200; the torsion spring 310 keeps the support arm 300 horizontal; the power motor is fixed to the lower end of the support arm 300; a rotating frame is fixed on the output shaft of the power motor; two symmetrically arranged mounting shafts are fixed on the rotating frame; propeller blades 320 are provided on the mounting shafts; one end of the propeller blade 320 is rotatably mounted on the mounting shaft;

[0031] The locking component is used to limit the rotation of the rotating arm and retract the power motor and the blade 320 into the storage cavity when the support arm 300 is rotated downward to the vertical state against the resistance of the torsion spring 310, making the entire UAV body 100 similar to a cylindrical shape without protruding parts, increasing portability and avoiding the risk of easy damage to the UAV body 100 during carrying and transportation; there are multiple locking components, and each locking component corresponds to a support arm 300; the locking component includes a locking plate 420 and a locking hole 410; there are two locking plates 420, symmetrically arranged on both sides of the support arm 300 and symmetrically distributed on both radial sides of the central mounting seat 200; the locking plate 420 is fixed to the central mounting seat 200; the locking plate 420 is internally provided with a threaded ball 600; the threaded ball 600 includes a sleeve; the axis of the sleeve is parallel to the rotation axis of the support arm 300; the opening of the sleeve faces the support arm 300; a ball is slidably installed at one end of the sleeve close to the support arm 300; a compression spring is connected between the ball and the sleeve; the locking hole 410 is provided on the support arm 300. The threaded ball 600 is an M5 type threaded ball 600. When the support arm 300 is rotated downward to the vertical state against the resistance of the torsion spring 310 and when the support arm 300 completely enters the accommodation cavity inside the housing, the threaded ball 600 will snap into the locking hole 410 of the support arm 300, and the support arm 300 is locked, completing the folding state.

[0032] The unlocking component is used to unlock the locking component with one key, enabling the support arm 300 to regain the ability to rotate, so that under the action of the torsion spring 310, multiple support arms 300 quickly rotate upward and pop out, realizing simultaneous opening with one key, greatly reducing the flight preparation time. The unlocking component includes a driving rod 510, a driven rod 520, and a mating rod 530; the driving rod 510 is arranged below the central mounting seat 200; the axis of the driving rod 510 is arranged along the radial direction of the central mounting seat 200 and is slidably mounted on the central mounting seat 200 along the radial direction of the central mounting seat 200; a spring is connected between the driving rod 510 and the central mounting seat 200; one end of the driving rod 510 extends outside the housing and is set as the unlocking end; a wedge block 511 is fixed in the middle of the driving rod 510.

[0033] The mating rod 530 is coaxially arranged below the central mounting seat 200 and is located below the driving rod 510; a vertical shaft sleeve 700 is fixed on the lower end face of the central mounting seat 200; the mating rod 530 is slidably mounted up and down in the vertical shaft sleeve 700 on the central mounting seat 200 and is connected with a spring between the mating rod 530 and the vertical shaft sleeve 700; both the upper and lower ends of the mating rod 530 are semi-circular; the upper end of the mating rod 530 abuts against the wedge-shaped wall of the wedge block 511 on the driving rod 510.

[0034] There are multiple driven rods 520, which are circumferentially distributed along the central mounting base 200; the driven rods 520 are arranged radially along the central mounting base 200 and are slidably mounted on the central mounting base 200 along the radial direction of the central mounting base 200; the driven rods 520 are arranged at the lower end of the mating rod 530; a spring is connected between the driven rods 520 and the central mounting base 200; one end of the driven rod 520 close to the axis of the central mounting base 200 is arc-shaped and abuts against the lower end of the mating rod 530, and the end of the driven rod 520 away from the axis of the central mounting base 200 is set as the trigger end; the trigger end of the driven rod 520 abuts against the support arm 300 when the support arm 300 is received into the accommodation cavity. When it is necessary to unlock the locking assembly with one key, press the unlocking end, drive the mating rod 530 to move downward through the wedge block 511, the mating rod 530 drives the driven rod 520 to push the support arm 300 in the direction away from the axis of the central mounting base 200, overcome the elastic force of the internal compression spring of the threaded ball 600, unlock the support arm 300, and under the elastic force of the torsion spring 310, multiple support arms 300 will quickly bounce open simultaneously and enter the ready-to-fly state, completing one-key rapid deployment to quickly enter the ready-to-fly state.

[0035] In this embodiment, a flight control board, an electronic speed controller board, a receiver, a video transmission module, and a bracket are fixed on the central mounting base 200; a GPS is fixed on the bracket. A protective cover 210 is sleeved outside the GPS; the protective cover 210 is fixed on the central mounting base 200 to protect the electronic control and signal transmission modules such as the flight control board, the electronic speed controller board, the receiver, the video transmission module, and the GPS.

[0036] Combined with the above embodiments, the working principle and process of the present invention are as follows: when overcoming the resistance of the torsion spring 310 to turn the support arm 300 downward to the vertical state, and when the support arm 300 completely enters the accommodation cavity inside the housing, the threaded ball 600 will snap into the locking hole 410 of the support arm 300, and the support arm 300 is locked, completing the folding state. When it is necessary to unlock the locking assembly with one key, press the unlocking end, drive the mating rod 530 to move downward through the wedge block 511, the mating rod 530 drives the driven rod 520 to push the support arm 300 in the direction away from the axis of the central mounting base 200, overcome the elastic force of the internal compression spring of the threaded ball 600, unlock the support arm 300, and under the elastic force of the torsion spring 310, multiple support arms 300 will quickly bounce open simultaneously and enter the ready-to-fly state, completing one-key rapid deployment to quickly enter the ready-to-fly state.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of foldable quadrotor cruise missile that can be popped up with one key, characterized in that: It includes a central mounting base, a locking component, and an unlocking component; The central mounting base is in the shape of a disc with a vertically arranged axis and is fixed to the upper end of the UAV body; the UAV body's housing is fixed on the central mounting base; there is a receiving cavity inside the housing; a plurality of arms are annularly distributed on the central mounting base; the arms are arranged radially along the central mounting base, one end of each arm is rotatably mounted on the central mounting base around a horizontal axis, and the other end is provided with a power motor; a torsion spring is connected between the arm and the central mounting base; the torsion spring keeps the arm horizontal; the power motor is fixed to the lower end of the arm; a rotating frame is fixed on the output shaft of the power motor; two symmetrically arranged mounting shafts are fixed on the rotating frame; blades are provided on the mounting shafts; one end of each blade is rotatably mounted on the mounting shaft; The locking component is used to restrict the rotation of the rotating arm when the arm is rotated downward to the vertical state against the resistance of the torsion spring; The unlocking component is used to unlock the locking component with one key to enable the arm to recover its rotation ability.

2. A novel foldable quadrotor cruise missile that can be popped up with one key according to claim 1, characterized in that: There are multiple locking components, and each locking component corresponds to one arm; the locking component includes a locking plate and a locking hole; There are two locking plates, symmetrically arranged on both sides of the arm and symmetrically distributed on both sides of the central mounting base in the radial direction; the locking plates are fixed to the central mounting base; a threaded ball catch is internally provided in the locking plate; the threaded ball catch includes a sleeve; the axis of the sleeve is parallel to the rotation axis of the arm; the opening of the sleeve faces the arm; a ball is slidably mounted at one end of the sleeve close to the arm; a compression spring is connected between the ball and the sleeve; the locking hole is provided on the arm.

3. The novel foldable quadrotor cruise missile capable of being popped up with one key according to claim 2, wherein: The threaded ball catch adopts an M5 type threaded ball catch.

4. The novel foldable quadrotor cruise missile capable of being popped up with one key according to claim 3, wherein: The unlocking component includes a driving rod, a driven rod, and a cooperating rod; The driving rod is arranged below the central mounting base; the axis of the driving rod is arranged radially along the central mounting base and is slidably mounted on the central mounting base in the radial direction; a spring is connected between the driving rod and the central mounting base; one end of the driving rod extends outside the housing and is set as the unlocking end; a wedge block is fixed in the middle of the driving rod; The cooperating rod is coaxially arranged below the central mounting base and is below the driving rod; a vertical shaft sleeve is fixed on the lower end face of the central mounting base; the cooperating rod is slidably mounted up and down in the vertical shaft sleeve on the central mounting base and is connected to the vertical shaft sleeve by a spring; both the upper and lower ends of the cooperating rod are semi-circular; the upper end of the cooperating rod abuts against the wedge-shaped wall of the wedge block on the driving rod; There are multiple driven rods, circumferentially distributed along the central mounting base; the driven rods are arranged radially along the central mounting base and are slidably mounted on the central mounting base in the radial direction; the driven rods are arranged at the lower end of the cooperating rod; a spring is connected between the driven rods and the central mounting base; one end of the driven rod close to the axis of the central mounting base is arc-shaped and abuts against the lower end of the cooperating rod, and the other end of the driven rod far from the axis of the central mounting base is set as the triggering end; the triggering end of the driven rod abuts against the arm when the arm is received into the receiving cavity.

5. The novel foldable quadrotor cruise missile capable of being popped up with one key according to claim 4, characterized in that: There are four arms.

6. The novel foldable quadrotor cruise missile capable of being popped up with one key according to claim 5, characterized in that: A flight control board, an electronic speed controller board, a receiver, a video transmission module, and a bracket are fixed on the central mounting base; a GPS is fixed on the bracket.

7. A novel foldable quadrotor cruise missile that can be popped up with one key according to claim 6, characterized in that: A protective cover is sleeved outside the GPS; the protective cover is fixed on the central mounting base.

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