Parachute ejection device

Abstract

The application discloses a parachute ejection device, which comprises a mounting mechanism, a hanging mechanism, an ejection mechanism and a locking mechanism, the mounting mechanism comprises a support, two mounting plates and a driving assembly, the support is provided with a sliding groove, the two mounting plates are both slidingly connected to the sliding groove, a clamping gap for clamping a UAV is formed between the two mounting plates, and the driving assembly is used for adjusting the size of the clamping gap; the hanging mechanism is connected to the support and is used for mounting a parachute; the ejection mechanism is connected to the support and is used for pushing the hanging mechanism so as to separate the hanging mechanism from the parachute; and the locking mechanism is connected to the support and is used for locking or unlocking the ejection mechanism. The parachute ejection device has the beneficial effects that: the sliding groove and the sliding rail sliding cooperation structure are adopted, the clamping gap is changed by the driving assembly driving the mounting plates, the mounting part size of different specifications of UAVs can be adapted, different UAV models with different shapes and different cabin sizes can be compatible, and the assembly universality of the device is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicles (UAVs), and more specifically to a parachute ejection device. Background Technology

[0002] During flight operations, drones and light aircraft are susceptible to factors such as airflow interference, power failure, and signal loss, which may lead to loss of control and crashes. Therefore, they need to be equipped with a special parachute ejection device to enable rapid emergency parachute deployment and ensure the safe recovery of the aircraft.

[0003] Chinese invention patent CN111731486B discloses a parachute ejection device, including an activation support assembly, a rotating support assembly, a housing, and a parachute device. The activation support assembly can be connected to flight equipment. The activation support assembly and the rotating support assembly are respectively connected to the housing, and the rotating support assembly is rotatably connected to the activation support assembly. The parachute device is disposed inside the housing. The activation support assembly includes multiple support structures and a first connecting rod. The multiple support structures are interconnected by the first connecting rod. Each support structure includes a support, a support rod, and an elastic component. The support is a tubular structure, with one end being a connecting end that can connect to the flight equipment, and the other end being an ejection end. The support rod is axially disposed inside the tubular support. One end of the elastic component is connected to the support, and the other end is connected to the support rod. The support rod is connected to the parachute device, and the support rod can be ejected from the ejection end along the axial direction of the support under the action of the elastic component.

[0004] The above-mentioned parachute ejection device has the following defects: the support structure of the parachute ejection device has a fixed size, and the corresponding installation position on the drone is not adjustable. It can only be adapted to drones of specific specifications and models, and it is difficult to be compatible with drone models with different shapes and cabin sizes, resulting in poor device versatility. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a parachute ejection device to solve the technical problem that the existing technology is limited by the size of the support frame and cannot be adapted to drones of different specifications.

[0006] To achieve the above technical objectives, the present invention provides a parachute ejection device, including an installation mechanism, comprising a support, two mounting plates, and a drive assembly. The support is provided with a sliding groove, and the two mounting plates are slidably connected to the sliding groove. A locking gap for locking a drone is formed between the two mounting plates. The fixed end of the drive assembly is connected to the support, and the movable end is connected to the two mounting plates for adjusting the size of the locking gap. A mounting mechanism, connected to the support, is used to mount the parachute; An ejection mechanism, connected to the support, is used to actuate the attachment mechanism to separate the attachment mechanism from the parachute; and... A locking mechanism, connected to the support, is used to lock the ejection mechanism or unlock the ejection mechanism.

[0007] In some embodiments, the drive assembly includes a double-ended lead screw and a base, the base being connected to the support, the double-ended lead screw being rotatably connected to the base, and both ends of the double-ended lead screw passing through two mounting plates and being threadedly connected to the two mounting plates.

[0008] In some embodiments, the ejection mechanism includes a rotating sleeve, a rotating rod, a rotating arm, a torsion spring, and a support plate. The rotating sleeve is connected to the support, the rotating rod is rotatably connected to the rotating sleeve, the rotating arm is connected to the rotating rod, and the support plate is connected to the rotating arm. The support plate is used to support a parachute. The locking mechanism is used to make the support plate abut against the mounting plate. One end of the torsion spring is connected to the rotating sleeve, and the other end of the torsion spring is connected to the rotating rod. The torsion spring causes the support plate to tend to rotate away from the mounting plate.

[0009] In some embodiments, the ejection mechanism further includes a limiting component, which includes a limiting block connected to the mounting plate. The support plate is provided with a limiting groove, and the limiting block is slidably connected to the limiting groove to limit the rotation trajectory of the support plate.

[0010] In some embodiments, the limiting component further includes a wear-resistant layer connected to the outer wall of the limiting block and the inner wall of the limiting groove.

[0011] In some embodiments, the locking mechanism includes a locking rod, a locking seat, a locking knob, a threaded sleeve, and a locking plate. The locking rod is connected to the rotating sleeve, the locking seat is connected to the locking rod, the threaded sleeve is connected to the locking seat, the locking knob is threadedly connected to the threaded sleeve, and the locking plate is connected to the locking knob. The locking knob is used to abut or separate the locking plate from the support plate.

[0012] In some embodiments, the locking mechanism further includes a marking component, which includes a marking block, a first fluorescent layer, and a second fluorescent layer. The marking block is connected to the locking knob, and the first fluorescent layer and the second fluorescent layer are respectively connected to two surfaces of the marking block. The first fluorescent layer and the second fluorescent layer are different colors.

[0013] In some embodiments, the marking assembly further includes a marking rod, a pointer, a scale line, and a transmission assembly, wherein the marking rod is rotatably connected to the locking plate, the pointer is connected to the locking plate, the scale line is connected to the marking rod, and the transmission assembly is connected between the locking knob and the marking rod.

[0014] In some embodiments, the transmission assembly includes a first transmission shaft, a first bevel gear, a second transmission shaft, and a second bevel gear. The first transmission shaft is connected to the locking seat, the first bevel gear is connected to the first transmission shaft, the second transmission shaft is connected to the marking rod, and the second bevel gear is connected to the second transmission shaft. The first bevel gear meshes with the second bevel gear.

[0015] In some embodiments, the hooking mechanism includes a hook and a locking pin. The hook is connected to the locking rod. Both the rotating cylinder and the rotating rod are provided with hook grooves adapted to the hook. The locking pin is connected to the rotating rod. The hook is provided with a locking groove adapted to the locking pin. When the support plate abuts against the mounting plate, the locking pin is located in the locking groove, and the hook is located in the hook groove. When the support plate is detached from the mounting plate, the locking pin is detached from the locking groove, and the hook is detached from the hook groove.

[0016] Compared with the prior art, the beneficial effects of the present invention include: adopting a sliding groove and sliding rail sliding fit structure, and using a drive component to drive the mounting plate to change the clamping distance, it can adapt to the mounting part size of different specifications of UAVs, and can be compatible with UAV models with different shapes and cabin sizes, effectively improving the assembly versatility of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the ejection device provided by the present invention in its stored state; Figure 2 This is a schematic diagram of the overall structure of the ejection device in ejection state provided by the present invention; Figure 3 This is a cross-sectional view of the overall structure of the catapult device provided by the present invention; Figure 4 This is an exploded view of the overall structure of the catapult device provided by the present invention; Figure 5 This is a cross-sectional view of the overall structure of the ejection mechanism and the mounting mechanism provided by the present invention; Figure 6 This is a schematic diagram of the overall structure of the locking mechanism provided by the present invention; Figure 7 This is a cross-sectional view of the overall structure of the locking mechanism provided by the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Mounting mechanism; 11. Support; 12. Slide rail; 13. Connecting plate; 14. Mounting plate; 15. Drive assembly; 151. Double-ended lead screw; 152. Base; 16. Slide groove; 2. Ejection mechanism; 21. Rotating sleeve; 22. Rotating rod; 23. Rotating arm; 24. Torsion spring; 25. Bearing plate; 26. Limiting assembly; 261. Limiting block; 262. Limiting groove; 3. Hanging mechanism; 31. Hook; 32. Locking pin; 33. Hanging groove; 34. Locking groove; 4. Locking mechanism; 41. Lock 42. Fixed rod; 43. Locking seat; 44. Locking knob; 45. Threaded sleeve; 46. Locking plate; 47. Marking assembly; 48. Marking block; 49. First fluorescent layer; 40. Second fluorescent layer; 41. Marking rod; 42. Pointer; 43. Scale line; 44. Transmission assembly; 45. First transmission shaft; 46. First shaft body; 47. Second shaft body; 48. Spring; 49. First bevel gear; 40. Second transmission shaft; 41. Second bevel gear. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] Example 1: This invention provides a parachute ejection device, the structure of which is as follows: Figure 1 - Figure 7 As shown, it includes an installation mechanism 1, a catapult mechanism 2, a mounting mechanism 3, and a locking mechanism 4.

[0021] The mounting mechanism 1 includes a support 11, two slide rails 12, two connecting plates 13, two mounting plates 14, and a drive assembly 15. The support 11 is provided with a slide groove 16. Both slide rails 12 are slidably connected to the slide groove 16. The two connecting plates 13 are respectively connected to the two slide rails 12. The two mounting plates 14 are respectively connected to the two connecting plates 13. A snap-fit ​​gap is formed between the two mounting plates 14 for snapping the drone. The fixed end of the drive assembly 15 is connected to the support 11, and the movable end is connected to the two mounting plates 14 for adjusting the size of the snap-fit ​​gap.

[0022] The mounting mechanism 3 is connected to the support 11 and is used to mount the parachute.

[0023] The ejection mechanism 2 is connected to the support 11 and is used to push the attachment mechanism 3 so that the attachment mechanism 3 separates from the parachute.

[0024] The locking mechanism 4 is connected to the support 11 and is used to lock or unlock the ejection mechanism 2.

[0025] In use, the device is adaptively clamped and assembled on the UAV through the mounting mechanism 1; the support 11 serves as the load-bearing base of the whole machine, and the two slide rails 12 can slide relative to each other along the slide groove 16 of the support 11; the drive component 15 outputs driving force to drive the two mounting plates 14 to move closer or further apart from each other, and the slide rails 12 follow the mounting plates 14 and the connecting plate 13 to slide synchronously along the slide groove 16, thereby adjusting the clamping distance between the two mounting plates 14, so that the support 11 and the two mounting plates 14 cooperate to clamp on the mounting part of the UAV, and the clamping span is changed according to the different UAV cabin and mounting position dimensions to complete the adaptation and installation of the device. After assembly, the locking mechanism 4 locks the ejection mechanism 2, the ejection mechanism 2 stores ejection potential energy, the attachment mechanism 3 attaches the parachute pack, and the device remains in standby state; when ejection operation is required, the locking mechanism 4 releases the locking constraint on the ejection mechanism 2, the ejection mechanism 2 releases the internally stored ejection potential energy to output ejection power, drive the attachment mechanism 3 to move, the attachment mechanism 3 moves with the ejection mechanism 2 to achieve automatic disengagement, release the parachute, and complete the ejection parachute opening action.

[0026] In this invention, a sliding fit structure of slide groove 16 and slide rail 12 is adopted. The mounting plate 14 is driven by drive component 15 to change the clamping distance, which can adapt to the mounting part size of different specifications of UAVs. It can be compatible with UAV models with different shapes and cabin sizes, effectively improving the assembly versatility of the device.

[0027] To adjust the spacing between the two slide rails 12, please refer to... Figure 3 In a preferred embodiment, the drive assembly 15 includes a double-ended lead screw 151 and a base 152. The base 152 is connected to the support 11, and the double-ended lead screw 151 is rotatably connected to the base 152. The two ends of the double-ended lead screw 151 are respectively inserted into two slide rails 12 and threadedly connected to the two slide rails 12.

[0028] In use, when the double-ended lead screw 151 is rotated, the two slide rails 12 move simultaneously towards or away from each other along the slide groove 16 of the support 11, driven by the transmission action of the reverse threads at both ends. When the double-ended lead screw 151 rotates in the forward direction, the two slide rails 12 move closer to each other, and the two mounting plates 14 are driven to close synchronously through the connecting plate 13, reducing the clamping distance. When the double-ended lead screw 151 rotates in the reverse direction, the two slide rails 12 move away from each other, and the two mounting plates 14 are driven to open synchronously, increasing the clamping distance. By adjusting the opening and closing span between the two mounting plates 14, the support 11 and the two mounting plates 14 are matched and clamped onto the mounting part of the drone, thereby adapting to the installation space size of different drones and completing the clamping and fixing of the device.

[0029] To eject the parachute, please refer to... Figure 1In a preferred embodiment, the ejection mechanism 2 includes a rotating sleeve 21, a rotating rod 22, a rotating arm 23, a torsion spring 24, and a support plate 25. The rotating sleeve 21 is connected to the support 11, the rotating rod 22 is rotatably connected to the rotating sleeve 21, the rotating arm 23 is connected to the rotating rod 22, and the support plate 25 is connected to the rotating arm 23. The support plate 25 is used to support the parachute. The locking mechanism 4 is used to make the support plate 25 abut against the mounting plate 14. One end of the torsion spring 24 is connected to the rotating sleeve 21, and the other end of the torsion spring 24 is connected to the rotating rod 22. The torsion spring 24 causes the support plate 25 to tend to rotate away from the mounting plate 14.

[0030] In use, with the mechanism locked and ready, the locking mechanism 4 locks and constrains the ejection mechanism 2, overcoming the spring torque of the torsion spring 24, causing the support plate 25 to abut against and be limited at the mounting plate 14. At this time, the torsion spring 24 is twisted and stores energy, accumulating ejection rotation power, while the support plate 25 remains in a retracted and ready posture. When ejection is required, the locking mechanism 4 releases the locking constraint on the ejection mechanism 2, no longer restricting the rotation of the rotating rod 22; the torsion spring 24 releases its stored elastic potential energy, driving the rotating rod 22 to rotate relative to the rotating sleeve 21. The rotating rod 22 drives the rotating arm 23 and the support plate 25 to rotate and swing together in a direction away from the mounting plate 14; the support plate 25 drives the parachute to rotate, cooperating with the hooking mechanism 3 to complete the release and ejection of the parachute, realizing ejection and parachute opening.

[0031] To constrain the rotation trajectory of ejection mechanism 2, please refer to... Figure 2 In a preferred embodiment, the ejection mechanism 2 further includes a limiting component 26, which includes a limiting block 261 connected to the mounting plate 14. The support plate 25 is provided with a limiting groove 262, and the limiting block 261 is slidably connected to the limiting groove 262 to limit the rotation trajectory of the support plate 25.

[0032] In use, when locked in standby mode, the support plate 25 abuts against the mounting plate 14, and the limiting block 261 is in the initial position of the limiting groove 262. When the locking mechanism 4 unlocks, the torsion spring 24 drives the rotating rod 22 to rotate. The rotating rod 22 drives the rotating arm 23 to rotate and swing together with the support plate 25. During the rotation of the support plate 25, the limiting groove 262 moves synchronously with the support plate 25 in an arc motion, while the limiting block 261 remains fixed. A continuous sliding fit relationship is formed between the limiting block 261 and the limiting groove 262. Throughout the entire rotational ejection stroke of the support plate 25, the side wall of the limiting block 261 always slides against the inner side wall of the limiting groove 262, radially limiting and guiding the rotation of the support plate 25, rotating arm 23, and rotating rod 22, constraining the rotation trajectory of the support plate 25, and suppressing radial swaying and deflection during the ejection process.

[0033] To reduce wear on the limiting block 261 and the limiting groove 262, please refer to... Figure 2In a preferred embodiment, the limiting component 26 further includes a wear-resistant layer, which is connected to the outer wall of the limiting block 261 and the inner wall of the limiting groove 262. The wear-resistant layer is made of polytetrafluoroethylene.

[0034] During use, during the ejection process, the outer wall of the limiting block 261 and the inner wall of the limiting groove 262 continuously undergo relative sliding friction; the wear-resistant layer isolates the base material from direct contact, reduces sliding friction loss, avoids abrasive wear and edge wear deformation caused by long-term reciprocating sliding of the base of the limiting block 261 and the limiting groove 262, improves the durability of the limiting component 26 under repeated work, and extends the service life of the whole machine.

[0035] To lock the ejection mechanism 2, please refer to... Figure 1 In a preferred embodiment, the locking mechanism 4 includes a locking rod 41, a locking seat 42, a locking knob 43, a threaded sleeve 44, and a locking plate 45. The locking rod 41 is connected to the rotating sleeve 21, the locking seat 42 is connected to the locking rod 41, the threaded sleeve 44 is connected to the locking seat 42, the locking knob 43 is threadedly connected to the threaded sleeve 44, and the locking plate 45 is connected to the locking knob 43. The locking knob 43 is used to make the locking plate 45 abut against or separate from the bearing plate 25. The rotation angle of the locking knob 43 is 0°-90°.

[0036] When in use, when the device is in the locked standby state, rotating the locking knob 43 forward causes the locking knob 43 to make a threaded feed motion relative to the threaded sleeve 44, which drives the locking plate 45 to move towards the support plate 25, so that the locking plate 45 presses against the support plate 25; at this time, the torsion spring 24 of the ejection mechanism 2 has been twisted and stored energy, and the torsion spring 24 outputs a rotational torque to the rotating rod 22. This torque is transmitted to the support plate 25 through the rotating arm 23, and the locking plate 45 provides abutment constraint, restricting the rotation of the support plate 25, overcoming the rotational tendency of the torsion spring 24, locking the ejection mechanism 2 in the stored energy standby position, preventing the ejection mechanism 2 from rotating unexpectedly, and realizing the mechanism locking. When a parachute ejection operation is required, the locking knob 43 is rotated in the opposite direction. The locking knob 43 retracts relative to the threaded sleeve 44, causing the locking plate 45 to move away from the support plate 25. The locking plate 45 and the support plate 25 separate from each other, releasing the mechanical abutment constraint on the support plate 25. The torsion spring 24 of the ejection mechanism 2 releases its elastic potential energy, driving the rotating rod 22 and the rotating arm 23 to rotate and swing the support plate 25, thus completing the parachute ejection release.

[0037] To visualize the operational status of ejection mechanism 2, please refer to... Figure 6In a preferred embodiment, the locking mechanism 4 further includes a marking component 46, which includes a marking block 461, a first fluorescent layer 462, and a second fluorescent layer 463. The marking block 461 is connected to the locking knob 43, and the first fluorescent layer 462 and the second fluorescent layer 463 are respectively connected to the two surfaces of the marking block 461. The first fluorescent layer 462 and the second fluorescent layer 463 are different colors.

[0038] In use, when locked, the locking knob 43 is rotated to the locked position, and the marker block 461 rotates with the locking knob 43, so that the surface with the first fluorescent layer 462 faces the external visible side. The operator can then observe the first fluorescent layer 462 from the outside, thus visually identifying that the mechanism is in the locked and ready state. When performing the ejection operation, the locking knob 43 is rotated to unlock, and the locking knob 43 causes the marker block 461 to rotate circumferentially in sync. The marker block 461 deflects at an angle, and at this time, the surface with the second fluorescent layer 463 rotates to the external visible position. The operator can then observe the second fluorescent layer 463 and determine that the mechanism is in the unlocked state.

[0039] To visualize the operational status of ejection mechanism 2, please refer to... Figure 6 In a preferred embodiment, the marking assembly 46 further includes a marking rod 464, a pointer 465, a scale line 466, and a transmission assembly 47. The marking rod 464 is rotatably connected to the locking plate 45, the pointer 465 is connected to the locking plate 45, the scale line 466 is connected to the marking rod 464, and the transmission assembly 47 is connected between the locking knob 43 and the marking rod 464.

[0040] In use, when the locking knob 43 is turned to lock or unlock, the rotation of the locking knob 43 is transmitted to the marker rod 464 through the transmission component 47, driving the marker rod 464 to rotate circumferentially relative to the locking plate 45. The pointer 465 remains in the same position with the locking plate 45, and the scale line 466 rotates synchronously with the marker rod 464. The stationary pointer 465 has a relative angular offset relative to the rotating scale line 466. In the locked state, when the locking knob 43 is turned to the locked position, the marker rod 464 is driven to rotate through the transmission component 47, and the scale line 466 representing the locked position aligns with the pointer 465, indicating that the indicating device is in the locked standby state. To unlock, the locking knob 43 is rotated in the opposite direction, and the locking knob 43 drives the marker rod 464 to continue rotating through the transmission component 47, rotating the scale line 466 representing the unlocked position until it aligns with the pointer 465, thus indicating that the indicating mechanism has switched to the unlocked state. By combining the first fluorescent layer 462 and the second fluorescent layer 463 with different colors on the marker block 461, a dual status indication is formed.

[0041] To achieve the linkage between the marker rod 464 and the locking knob 43, please refer to... Figure 7In a preferred embodiment, the transmission assembly 47 includes a first transmission shaft 471, a first bevel gear 472, a second transmission shaft 473, and a second bevel gear 474. The first transmission shaft 471 includes a first shaft body 4711, a second shaft body 4712, and a spring 4713. The first shaft body 4711 is connected to the locking seat 42, the second shaft body 4712 is slidably connected to the first shaft body 4711, the first bevel gear 472 is connected to the second shaft body 4712, one end of the spring 4713 is connected to the first shaft body 4711, and the other end of the spring 4713 is connected to the second shaft body 4712. The second transmission shaft 473 is connected to the marker rod 464, and the second bevel gear 474 is connected to the second transmission shaft 473. The first bevel gear 472 meshes with the second bevel gear 474, and the spring 4713 causes the first bevel gear 472 to tend to move towards the second bevel gear 474.

[0042] During use, the spring 4713 continuously applies axial elastic force to the second shaft 4712, ensuring that the first bevel gear 472 always tends to move towards the second bevel gear 474, thus maintaining the meshing state between the first bevel gear 472 and the second bevel gear 474. When the locking knob 43 rotates, it transmits torque to the first drive shaft 471, causing the first drive shaft 471 and the first bevel gear 472 to rotate together around the axis of the first drive shaft 471. The meshing first bevel gear 472 and the second bevel gear 474 change the direction of torque transmission. The first bevel gear 472 drives the second bevel gear 474 to rotate, and the second bevel gear 474 drives the second drive shaft 473 and the marking rod 464 to rotate synchronously around the axis of the marking rod 464. The pointer 465 is fixed on the locking plate 45 and remains stationary. The marker rod 464 drives the scale line 466 to rotate synchronously. The scale line 466 is offset relative to the pointer 465, thereby converting the rotation angle of the locking knob 43 into the deflection of the scale line 466, thus realizing angle indication.

[0043] To attach the parachute, please refer to... Figure 5 In a preferred embodiment, the hooking mechanism 3 includes a hook 31 and a locking pin 32. The hook 31 is connected to the locking rod 41. Both the rotating cylinder and the rotating rod 22 are provided with a hook groove 33 that matches the hook 31. The locking pin 32 is connected to the rotating rod 22. The hook 31 is provided with a locking groove 34 that matches the locking pin 32. When the bearing plate 25 abuts against the mounting plate 14, the locking pin 32 is located in the locking groove 34 and the hook 31 is located in the hook groove 33. When the bearing plate 25 is removed from the mounting plate 14, the locking pin 32 is removed from the locking groove 34 and the hook 31 is removed from the hook groove 33.

[0044] When in use, with the mechanism in the locked and ready state, the bearing plate 25 abuts against the mounting plate 14; at this time, the hook 31 is engaged in the slot 33 of the rotating sleeve 21 and the rotating rod 22, and the locking pin 32 is embedded in the slot 34 of the hook 31; the hook 31 constrains the locking pin 32 through the slot 34, thereby forming a hooking limit on the rotating rod 22, and assisting the locking mechanism 4 in resisting the rotational torque of the torsion spring 24, limiting the rotation of the rotating rod 22, and keeping the ejection mechanism 2 in the energy storage and locking position. When the locking knob 43 is turned to unlock, the locking plate 45 releases its abutment constraint on the support plate 25, and the torsion spring 24 releases its elastic potential energy to drive the rotating rod 22 to rotate. The rotating rod 22 rotates slightly, causing the locking pin 32 to follow the rotating rod 22 in a circumferential displacement, so that the locking pin 32 disengages from the slot 34 of the hook 31. The locking pin 32 releases its limiting constraint on the hook 31, the rotating rod 22 continues to rotate, the hook 31 disengages from the slot 33, and the hook 31 no longer acts as a limiting contact for the rotating rod 22, thus completely releasing the rotating rod 22. The rotating rod 22 drives the rotating arm 23 and the support plate 25 to continue to rotate and swing, completing the parachute ejection release.

[0045] Example 2: This embodiment has a basically the same structure as Embodiment 1, the difference being the different driving component 15.

[0046] Specific structural improvements: The drive assembly 15 includes an elastic pusher, a sliding block, a locking bolt, and a locking pressure block; the support 11 has symmetrical locking grooves on both sides that communicate with the slide groove 16; the sliding block is slidably assembled inside the locking groove of the support 11; the elastic pusher is installed between the bottom of the locking groove and the sliding block; the elastic pusher always applies an outward pushing force to the sliding block; the outer side of the sliding block is fixedly connected to the slide rail 12; the locking pressure block is fixed to the side wall of the support 11; the locking bolt thread passes through the locking pressure block and presses against the outer side wall of the sliding block.

[0047] During use, loosen the locking bolts on both sides to release the pressure limit on the sliding block; the elastic pusher releases its spring force to push the sliding block, causing the sliding block to drive the slide rail 12 to slide outward along the slide groove 16. The mounting plates 14 on both sides automatically open, allowing for quick adaptation to large-sized installation positions on the UAV. When adapting to smaller installation positions, manually press the mounting plates 14 inward. The slide rail 12 overcomes the spring force of the elastic pusher and slides inward, reducing the gap to adapt to the corresponding installation space. After adjustment, rotate the locking bolts to press the ends of the locking bolts against the sliding block, using the threaded clamping friction to lock the sliding block in position, maintaining the current clamping distance between the slide rail 12 and the mounting plate 14, thus completing the clamping and fixing of the device. During flight, the elastic pusher continuously provides preload force, working in conjunction with the rigid locking bolts to eliminate assembly gaps, effectively offsetting high-frequency vibrations of the UAV and preventing loosening of the installation.

[0048] To better understand this invention, the following is combined with... Figure 1 - Figure 7 The working principle of a parachute ejection device according to the present invention is described in detail as follows: the device is adaptively clamped and assembled on the UAV through the mounting mechanism 1; the support 11 serves as the load-bearing base of the whole machine, and the two slide rails 12 can slide relative to each other along the slide groove 16 of the support 11; the drive component 15 outputs driving force to drive the two mounting plates 14 to move closer or further away from each other, and the slide rails 12 follow the mounting plates 14 and the connecting plate 13 to slide synchronously along the slide groove 16, thereby adjusting the clamping distance between the two mounting plates 14, so that the support 11 and the two mounting plates 14 cooperate to clamp and hold on the mounting part of the UAV. The clamping span is changed according to the different UAV cabin and mounting position dimensions to complete the adaptive installation of the device. After assembly, the locking mechanism 4 locks the ejection mechanism 2, the ejection mechanism 2 stores ejection potential energy, the attachment mechanism 3 attaches the parachute pack, and the device remains in standby state; when ejection operation is required, the locking mechanism 4 releases the locking constraint on the ejection mechanism 2, the ejection mechanism 2 releases the internally stored ejection potential energy to output ejection power, drive the attachment mechanism 3 to move, the attachment mechanism 3 moves with the ejection mechanism 2 to achieve automatic disengagement, release the parachute, and complete the ejection parachute opening action.

[0049] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A parachute ejection device, characterized in that, include: The mounting mechanism includes a support, two mounting plates, and a drive assembly. The support has a sliding groove, and the two mounting plates are slidably connected to the sliding groove. A snap-fit ​​gap is formed between the two mounting plates for snapping onto a drone. The fixed end of the drive assembly is connected to the support, and the movable end is connected to the two mounting plates for adjusting the size of the snap-fit ​​gap. A mounting mechanism, connected to the support, is used to mount the parachute; An ejection mechanism, connected to the support, is used to push the attachment mechanism to separate the attachment mechanism from the parachute; as well as, A locking mechanism, connected to the support, is used to lock the ejection mechanism or unlock the ejection mechanism.

2. The parachute ejection device according to claim 1, characterized in that, The drive assembly includes a double-ended lead screw and a base. The base is connected to the support, and the double-ended lead screw is rotatably connected to the base. The two ends of the double-ended lead screw pass through the two mounting plates and are threadedly connected to the two mounting plates.

3. The parachute ejection device according to claim 1, characterized in that, The ejection mechanism includes a rotating sleeve, a rotating rod, a rotating arm, a torsion spring, and a support plate. The rotating sleeve is connected to the support, the rotating rod is rotatably connected to the rotating sleeve, the rotating arm is connected to the rotating rod, and the support plate is connected to the rotating arm. The support plate is used to support the parachute. The locking mechanism is used to make the support plate abut against the mounting plate. One end of the torsion spring is connected to the rotating sleeve, and the other end of the torsion spring is connected to the rotating rod. The torsion spring causes the support plate to tend to rotate away from the mounting plate.

4. The parachute ejection device according to claim 3, characterized in that, The ejection mechanism further includes a limiting component, which includes a limiting block connected to the mounting plate. The support plate is provided with a limiting groove, and the limiting block is slidably connected to the limiting groove to limit the rotation trajectory of the support plate.

5. The parachute ejection device according to claim 4, characterized in that, The limiting component also includes a wear-resistant layer, which is connected to the outer wall of the limiting block and the inner wall of the limiting groove.

6. The parachute ejection device according to claim 3, characterized in that, The locking mechanism includes a locking rod, a locking seat, a locking knob, a threaded sleeve, and a locking plate. The locking rod is connected to the rotating sleeve, the locking seat is connected to the locking rod, the threaded sleeve is connected to the locking seat, the locking knob is threadedly connected to the threaded sleeve, and the locking plate is connected to the locking knob. The locking knob is used to make the locking plate abut against or separate from the support plate.

7. The parachute ejection device according to claim 6, characterized in that, The locking mechanism further includes a marking component, which includes a marking block, a first fluorescent layer, and a second fluorescent layer. The marking block is connected to the locking knob, and the first fluorescent layer and the second fluorescent layer are respectively connected to two surfaces of the marking block. The first fluorescent layer and the second fluorescent layer are different colors.

8. The parachute ejection device according to claim 6, characterized in that, The marking assembly further includes a marking rod, a pointer, a scale line, and a transmission assembly. The marking rod is rotatably connected to the locking plate, the pointer is connected to the locking plate, the scale line is connected to the marking rod, and the transmission assembly is connected between the locking knob and the marking rod.

9. The parachute ejection device according to claim 8, characterized in that, The transmission assembly includes a first transmission shaft, a first bevel gear, a second transmission shaft, and a second bevel gear. The first transmission shaft is connected to the locking seat, the first bevel gear is connected to the first transmission shaft, the second transmission shaft is connected to the marking rod, and the second bevel gear is connected to the second transmission shaft. The first bevel gear and the second bevel gear mesh with each other.

10. The parachute ejection device according to claim 6, characterized in that, The hooking mechanism includes a hook and a locking pin. The hook is connected to the locking rod. Both the rotating cylinder and the rotating rod are provided with hook grooves that are adapted to the hook. The locking pin is connected to the rotating rod. The hook is provided with a locking groove that is adapted to the locking pin. When the support plate abuts against the mounting plate, the locking pin is located in the locking groove and the hook is located in the hook groove. When the support plate is detached from the mounting plate, the locking pin is detached from the locking groove and the hook is detached from the hook groove.

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