Automatic parachute opening device based on cam unlocking

Abstract

The utility model relates to an automatic parachute opening device based on cam unlocking, and belongs to the technical field of parachutes. The automatic parachute opening device based on cam unlocking comprises a main parachute, a guide parachute, a parachute cabin and an action mechanism. Wherein the parachute bay comprises a bay body, a parachute bay cover and a parachute folding seat and is used for accommodating the main parachute and the guide parachute; the cabin body is hinged to the parachute cabin cover, the cabin body is fixedly connected with the parachute folding base, the main parachute is installed on the parachute folding base, and the guide parachute is contained above the main parachute; the action mechanism is installed at the end, close to the parachute cabin cover, of the cabin body, movably connected with the parachute cabin cover and used for controlling opening or closing of the parachute cabin cover. The action mechanism comprises a rotary lock catch mounted on the cabin body and a fixed lock catch mounted on the parachute cabin cover; and when the action mechanism is unlocked, the rotary lock catch is separated from the fixed lock catch, so that the main umbrella and the guide umbrella are opened. According to the automatic parachute opening device based on cam unlocking, the parachute cabin cover is controlled to be opened or closed through the action mechanism, and a more efficient, safer and more economical solution is provided for air-drop laying of ocean observation and detection equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of parachutes, and particularly relates to an automatic parachute opening device based on cam unlocking. Background Art

[0002] Ocean observation and detection equipment plays a crucial role in the fields of ocean security, scientific research, climate change, and ocean economic development. The deployment of small devices such as buoys and gliders is suitable for aerial delivery. When conducting aerial delivery, a parachute is usually used to decelerate the ocean observation and detection equipment so that it can enter the water at a safe speed and ensure that it is not damaged during aerial delivery.

[0003] The automatic opening of the parachute can greatly improve the efficiency of aerial delivery. In the prior art, the opening methods of parachutes with automatic opening functions can be divided into two types: spring push type and gas drive type, which are generally used for unmanned aerial vehicles (UAVs) to prevent accidental crashes of UAVs.

[0004] The cost of the gas drive type parachute cabin is relatively high and the risk is also high. It is usually used for fixed-wing UAVs. The weight of the UAV itself is not large, and the gravitational force is not sufficient to pull out the main parachute. When opening the parachute, high-pressure gas is needed to push the parachute out to a certain height as much as possible to keep it away from the propeller to prevent entanglement. However, the ocean observation and detection equipment has no propeller and mostly has a certain weight (usually ranging from 20 to 50 kg). When opening the parachute, usually only the pilot parachute needs to be ejected from the parachute cabin. After the pilot parachute unfolds, under the action of its resistance and the gravity of the observation equipment, it is sufficient to pull out the main parachute. Therefore, the air-dropped parachute for ocean observation and detection equipment is not suitable for gas drive opening.

[0005] The spring push type automatic parachute opening device usually uses the spring force of the pilot parachute and the torsion spring force of the cabin door to achieve parachute opening. The opening and closing of the parachute cabin cover are usually realized by driving a latch through a motor (servo). The motor pulls out the latch, and the parachute cabin cover automatically opens; after closing the parachute cabin cover, the motor rotates to insert the latch to complete parachute retraction. For this kind of action mechanism, after the motor pulls out the latch and the parachute cabin cover automatically opens, the motor needs to act once again to complete parachute retraction. The parachute is easy to open but difficult to retract. When applied to the aerial delivery of ocean observation and detection equipment, it will lead to a reduction in delivery efficiency.

[0006] Therefore, how to provide an automatic parachute opening device suitable for deploying ocean observation and detection equipment is a technical problem that urgently needs to be solved at present. Summary of the Utility Model

[0007] Aiming at the deficiencies existing in the prior art, the utility model provides an automatic parachute opening device based on cam unlocking, which controls the opening or closing of the parachute cabin cover through an action mechanism, and provides a more efficient, safe, and economical solution for the aerial delivery of ocean observation and detection equipment.

[0008] The present utility model provides a parachute automatic opening device based on cam unlocking, including:

[0009] Main parachute;

[0010] Pilot chute;

[0011] Parachute compartment, including a compartment body, a parachute compartment cover and a parachute stacking seat, for storing the main parachute and the pilot chute; the compartment body is hinged to the parachute compartment cover, the compartment body is fixedly connected to the parachute stacking seat, the main parachute is installed on the parachute stacking seat, and the pilot chute is stored above the main parachute;

[0012] Actuating mechanism, which is installed at one end of the compartment body close to the parachute compartment cover and is movably connected to the parachute compartment cover, for controlling the opening or closing of the parachute compartment cover; the actuating mechanism includes a rotary lock installed on the compartment body and a fixed lock installed on the parachute compartment cover; when the actuating mechanism is locked, the rotary lock and the fixed lock restrict each other, and the parachute compartment cover is in a closed state to store the main parachute and the pilot chute; when the actuating mechanism is unlocked, the rotary lock and the fixed lock are disengaged from each other, and the parachute compartment cover is in an open state to open the main parachute and the pilot chute; the actuating mechanism further includes a driving member fixedly connected to the compartment body, the driving member is fixedly connected to the compartment body, for receiving an unlocking signal and driving the rotary lock to rotate and disengage from the fixed lock; a cam for transmission is installed at the rotating shaft of the driving member, the cam rotates with the rotating shaft of the driving member and is always connected to the rotary lock; when the convex portion of the cam presses the rotary lock, the rotary lock rotates and disengages from the fixed lock.

[0013] This technical solution controls the opening or closing of the parachute compartment cover through the actuating mechanism, providing a more efficient, safe and economical solution for the air dropping and deployment of ocean observation and detection equipment; by receiving the unlocking signal through the driving member, the rotary lock is quickly driven to rotate and disengage from the fixed lock, so as to realize the rapid opening of the parachute compartment cover; through the setting of the cam, it is ensured that the rotary lock can quickly and accurately rotate and disengage from the fixed lock after receiving the unlocking signal, so as to realize the rapid opening of the parachute compartment cover.

[0014] In some embodiments, the parachute automatic opening device based on cam unlocking further includes a controller, which is communicatively connected to the actuating mechanism and is used for sending an unlocking signal to the actuating mechanism to control the actuating mechanism to open.

[0015] This technical solution ensures the timely opening of the parachute compartment cover and the rapid deployment of the parachute through the setting of the controller.

[0016] In some embodiments, the controller is provided with an acceleration sensor, and the acceleration sensor is used for detecting whether the parachute is in a weightless state; when the parachute is in a weightless state, the controller sends an unlocking signal to the actuating mechanism.

[0017] This technical solution can intelligently detect whether the parachute is in a weightless state and automatically send an unlocking signal to the actuating mechanism at an appropriate time, so as to quickly open the parachute compartment cover and release the parachute.

[0018] In some of these embodiments, the actuating mechanism further includes a mounting seat, and the mounting seat is fixedly connected to the cabin body.

[0019] Through the arrangement of the mounting seat, this technical solution provides a stable foundation for the actuating mechanism, ensuring stability and reliability during operation.

[0020] In some of these embodiments, the mounting seat is provided with a jack, and the actuating mechanism further includes a pin shaft, and the pin shaft passes through the rotary lock and the jack so that the rotary lock rotates around the pin shaft.

[0021] Through the arrangement of the pin shaft, this technical solution enables the rotary lock to rotate stably around the pin shaft, ensuring effective restraint or detachment between the rotary lock and the fixed lock.

[0022] In some of these embodiments, the actuating mechanism further includes an elastic member. One end of the elastic member is used to be fixed to the mounting seat, and the other end is used to press against the rotary lock so that the rotary lock and the fixed lock are mutually constrained.

[0023] Through the fixing of one end of the elastic member to the mounting seat and the pressing of the other end against the rotary lock, this technical solution realizes the mutual constraint between the rotary lock and the fixed lock.

[0024] In some of these embodiments, the elastic member includes a first spring and a limit post for fixing the first spring to the mounting seat. The limit post is fixed on the mounting seat, and the first spring is sleeved on the limit post.

[0025] Through the arrangement of the limit post, this technical solution makes the fixing of the first spring to the mounting seat more stable.

[0026] In some of these embodiments, the pilot parachute is provided with a second spring, and the second spring is installed between the pilot parachute and the main parachute; when the parachute compartment cover is closed, the second spring is in a compressed state.

[0027] Through the arrangement of the second spring, this technical solution quickly releases the elastic force of the second spring when the parachute compartment cover is opened, thereby pushing the pilot parachute to quickly pop out and driving the main parachute to deploy, effectively improving the response speed of the parachute system and the efficiency of airdrop deployment.

[0028] In some of these embodiments, a torsion spring hinge is installed at the hinge joint between the cabin body and the parachute compartment cover; when the parachute compartment cover is closed, the torsion spring hinge is in a closed state.

[0029] Through the pre-tightening force of the torsion spring hinge, this technical solution provides elastic force when the parachute is opened, helping the parachute compartment cover to quickly open and ensuring that the parachute can be quickly released.

[0030] In some of these embodiments, a hinge cushion block is provided at the connection between the torsion spring hinge and the cabin body, and the outer surface of the hinge cushion block fits against the inner surface of the cabin body.

[0031] Through the arrangement of the hinge cushion block, this technical solution ensures the tight fit and stability between the torsion spring hinge and the cabin body, while providing additional buffering to reduce the impact of vibration and shock on the equipment.

[0032] Based on the above solution, the parachute automatic opening device based on cam unlocking restrains the parachute cabin cover through an operating mechanism, thereby controlling the opening or closing of the parachute; it achieves rapid and reliable parachute opening through a fixed lock and a rotating lock, reducing the time delay during the aerial delivery process and improving the efficiency of aerial delivery of ocean observation and detection equipment; at the same time, compared with the gas-driven type, the operating mechanism is used to open the parachute in the embodiments of the present invention, avoiding the use of high-pressure gas, reducing costs and potential safety risks. It should also be noted that when the parachute automatic opening device based on cam unlocking in this embodiment closes the parachute cabin cover while pressing down forcefully after storing the pilot chute in the parachute cabin, the rotating lock of the operating mechanism is locked and restrained with the fixed lock to achieve parachute closing. Compared with the conventional spring-pushing type parachute opening device, the present invention controls the opening or closing of the parachute cabin cover through the operating mechanism, and only needs to press down the parachute cabin cover during parachute closing, without sending an instruction to the operating mechanism again, which can simplify the parachute closing steps and improve the efficiency of aerial delivery. In summary, the parachute automatic opening device based on cam unlocking in the embodiments of the present invention provides a more efficient, safe, and economical solution for the aerial delivery of ocean observation and detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0034] Figure 1 is a schematic structural diagram of the parachute automatic opening device based on cam unlocking in the embodiments of the present invention;

[0035] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0036] Figure 3 is a partial structural diagram of the operating mechanism of the parachute automatic opening device based on cam unlocking in the embodiments of the present invention;

[0037] Figure 4 is Figure 1 an enlarged schematic view of part B in

[0038] In the figure:

[0039] 1. Main parachute; 2. Pilot parachute; 3. Parachute compartment; 4. Actuating mechanism; 5. Second spring; 6. Torsion spring hinge; 7. Hinge cushion block; 8. Screw; 9. Cylindrical wedge

[0040] 301. Cabin body; 302. Parachute compartment cover; 303. Parachute stacking seat

[0041] 401. Rotating lock; 402. Fixed lock; 403. Driving part; 404. Cam; 405. Mounting seat; 406. Pin shaft; 407. First spring; 408. Limit post; 409. Bracket; 410. Mounting cushion block Detailed implementation mode

[0042] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0044] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0045] 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 may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. 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 circumstances.

[0046] Such as Figures 1-4As shown, in an embodiment of the automatic parachute opening device based on cam unlocking of the present utility model, the automatic parachute opening device based on cam unlocking includes a main parachute 1, a pilot parachute 2, a parachute compartment 3, and an actuating mechanism 4. Among them, the parachute compartment 3 includes a compartment body 301, a parachute compartment cover 302, and a parachute stacking seat 303, and is used for storing the main parachute 1 and the pilot parachute 2. The compartment body 301 is hinged to the parachute compartment cover 302, the compartment body 301 is fixedly connected to the parachute stacking seat 303, the main parachute 1 is installed on the parachute stacking seat 303, and the pilot parachute 2 is stored above the main parachute 1. The actuating mechanism 4 is installed at one end of the compartment body 301 close to the parachute compartment cover 302 and is movably connected to the parachute compartment cover 302, and is used for controlling the opening or closing of the parachute compartment cover 302. The actuating mechanism 4 includes a rotary lock 401 installed on the compartment body 301 and a fixed lock 402 installed on the parachute compartment cover 302. When the actuating mechanism 4 is locked, the rotary lock 401 and the fixed lock 402 restrain each other, and the parachute compartment cover 302 is in a closed state to store the main parachute 1 and the pilot parachute 2. When the actuating mechanism 4 is unlocked, the rotary lock 401 and the fixed lock 402 are disengaged from each other, and the parachute compartment cover 302 is in an open state to open the main parachute 1 and the pilot parachute 2. The actuating mechanism 4 further includes a driving member 403 fixedly connected to the compartment body 301. The driving member 403 is fixedly connected to the compartment body 301 and is used for receiving an unlocking signal and driving the rotary lock 401 to rotate and disengage from the fixed lock 402. A cam 404 for transmission is installed at the rotating shaft of the driving member 403. The cam 404 rotates with the rotating shaft of the driving member 403 and is always connected to the rotary lock 401. When the convex portion of the cam 404 presses the rotary lock 401, the rotary lock 401 rotates and disengages from the fixed lock 402.

[0047] In the above-described exemplary embodiment, the parachute automatic opening device based on cam unlocking restrains the parachute compartment cover 302 through the actuating mechanism 4, thereby controlling the opening or closing of the parachute; the quick and reliable opening of the parachute is achieved through the fixed latch 402 and the rotating latch 401, reducing the time delay during the airdrop deployment process and improving the efficiency of the airdrop deployment of the ocean observation and detection equipment; at the same time, compared with the gas-driven type, in the embodiment of the present utility model, the actuating mechanism 4 is used to open the parachute, avoiding the use of high-pressure gas and reducing the cost and potential safety risks. It should also be noted that when the parachute automatic opening device based on cam unlocking in this embodiment closes the parachute, after the pilot chute 2 is received in the parachute compartment 3, while closing the parachute compartment cover 302, press down forcefully to lock and restrain the rotating latch 401 and the fixed latch 402 of the actuating mechanism 4, and the parachute closing can be achieved. Compared with the conventional spring-pushing type parachute opening device, in the present utility model, the opening or closing of the parachute compartment cover 302 is controlled by the actuating mechanism 4. When closing the parachute, just press down the parachute compartment cover 302, and there is no need to send an instruction to the actuating mechanism 4 anymore, which can simplify the parachute closing steps and improve the efficiency of airdrop deployment; the unlocking signal is received by the driving member 403, and the rotating latch 401 is quickly driven to rotate and disengage from the fixed latch 402, thereby achieving the quick opening of the parachute compartment cover 302; not only can the response speed of the parachute opening be improved, but also the stability and reliability of the entire device are enhanced by the fixed connection between the driving member 403 and the cabin body 301, reducing the failure risk caused by component loosening or damage; through the setting of the cam 404, it is ensured that the rotating latch 401 can quickly and accurately rotate and disengage from the fixed latch 402 after receiving the unlocking signal, thereby achieving the quick opening of the parachute compartment cover 302. In summary, the parachute automatic opening device based on cam unlocking in the embodiment of the present utility model provides a more efficient, safe and economical solution for the airdrop deployment of ocean observation and detection equipment.

[0048] It can be understood that the driving member 403 can be selected as an electric motor.

[0049] In some embodiments, the parachute automatic opening device based on cam unlocking further includes a controller, which is communicatively connected to the actuating mechanism 4 and is used to send an unlocking signal to the actuating mechanism 4 to control the actuating mechanism 4 to open. Through the setting of the controller, the timely opening of the parachute compartment cover 302 and the rapid deployment of the parachute are ensured. This intelligent automatic control method greatly improves the efficiency and safety of airdrop deployment, and at the same time reduces the complexity and error rate of manual operation.

[0050] In some embodiments, the controller is provided with an acceleration sensor for detecting whether the parachute is in a weightless state; when the parachute is in a weightless state, the controller sends an unlocking signal to the actuating mechanism 4. By integrating the acceleration sensor on the controller, it can intelligently detect whether the parachute is in a weightless state and automatically send an unlocking signal to the actuating mechanism 4 at an appropriate time, thereby quickly opening the parachute compartment cover 302 and releasing the parachute; this not only improves the accuracy and efficiency of the airdrop deployment, but also enhances the operation safety, reduces the dependence on manual intervention, and makes the entire airdrop process more reliable and efficient.

[0051] In some embodiments, as Figures 2-3 shown, the actuating mechanism 4 further includes a mounting seat 405, and the mounting seat 405 is fixedly connected to the cabin body 301. The actuating mechanism 4 is fixedly connected to the cabin body 301 through the mounting seat 405. Through the setting of the mounting seat 405, a stable foundation is provided for the actuating mechanism 4, ensuring stability and reliability during the operation, and making the inspection and maintenance work easier, which helps to improve the maintenance efficiency of the entire device and reduce the maintenance cost.

[0052] In some embodiments, as Figures 2-3 shown, the actuating mechanism 4 further includes a bracket 409 for mounting the driving member 403, and the bracket 409 is fixedly connected to the mounting seat 405.

[0053] In some embodiments, as Figure 1 shown, the mounting seat 405 is fixedly connected to the cabin body 301 by bolts. To prevent the bolts from wearing the cabin body 301, mounting pads 410 are provided between the bolts and the outer surface of the cabin body 301.

[0054] In some embodiments, as Figures 2-3 shown, the mounting seat 405 is provided with a jack, and the actuating mechanism 4 further includes a pin shaft 406. The pin shaft 406 passes through the rotary lock 401 and the jack, so that the rotary lock 401 rotates around the pin shaft 406. Through the setting of the pin shaft 406, the rotary lock 401 can stably rotate around the pin shaft 406, ensuring the effective restraint or detachment between the rotary lock 401 and the fixed lock 402.

[0055] In some embodiments, as Figures 2-3As shown, the actuating mechanism 4 further includes an elastic member. One end of the elastic member is used to be fixed to the mounting seat 405, and the other end is used to press against the rotary latch 401 so that the rotary latch 401 and the fixed latch 402 are mutually restricted. By fixing one end of the elastic member to the mounting seat 405 and pressing against the rotary latch 401 at the other end, the mutual restriction between the rotary latch 401 and the fixed latch 402 is realized; through the pre-tightening force of the elastic member, it is ensured that the rotary latch 401 will not accidentally disengage when no unlocking signal is received, increasing the safety of the entire system; at the same time, the presence of the elastic member also enables the rotary latch 401 to quickly respond and successfully disengage from the fixed latch 402 after receiving the unlocking signal, so as to quickly open the parachute compartment cover 302. Such a mechanism not only improves the response speed and reliability of the parachute automatic opening device based on cam unlocking, but also simplifies the structure, is convenient for maintenance, and is suitable for application scenarios that require rapid deployment and high security.

[0056] In some embodiments, as Figure 2 shown, the elastic member includes a first spring 407 and a limiting post 408 for fixing the first spring 407 to the mounting seat 405. The limiting post 408 is fixed on the mounting seat 405, and the first spring 407 is sleeved on the limiting post 408. Through the setting of the limiting post 408, the fixing of the first spring 407 to the mounting seat 405 is made more stable.

[0057] In some embodiments, as Figure 1 shown, the pilot parachute 2 is provided with a second spring 5. The second spring 5 is installed between the pilot parachute 2 and the main parachute 1; when the parachute compartment cover 302 is closed, the second spring 5 is in a compressed state. Through the setting of the second spring 5, the elastic force of the second spring 5 is quickly released when the parachute compartment cover 302 is opened, so as to push the pilot parachute 2 to quickly pop out and drive the main parachute 1 to deploy, effectively improving the response speed of the parachute system and the efficiency of airdrop deployment. At the same time, it also reduces the mechanical complexity and potential failure points, enhancing the reliability of the entire system and the simplicity of operation.

[0058] In some embodiments, as Figure 1 shown, a torsion spring hinge 6 is installed at the hinge joint between the cabin body 301 and the parachute compartment cover 302; when the parachute compartment cover 302 is closed, the torsion spring hinge 6 is in a closed state. Through the pre-tightening force of the torsion spring hinge 6, elastic force is provided during parachute opening to help the parachute compartment cover 302 open quickly, ensuring that the parachute can be quickly released, which not only improves the efficiency of airdrop deployment, but also enhances the reliability of the entire system.

[0059] In some embodiments, as Figure 1As shown, a hinge spacer 7 is provided at the connection between the torsion spring hinge 6 and the cabin body 301, and the outer surface of the hinge spacer 7 is in contact with the inner surface of the cabin body 301. By providing the hinge spacer 7, the tight fit and stability between the torsion spring hinge 6 and the cabin body 301 are ensured. At the same time, additional buffering is provided to reduce the impact of vibration and shock on the equipment, enhancing the durability and reliability of the entire structure; and making the maintenance and replacement of the torsion spring hinge 6 more convenient and rapid.

[0060] In some embodiments, as Figure 1 shown, the cabin body 301 and the umbrella stacking seat 303 are fixedly connected by screws 8. The screw 8 connection structure is stable and reliable, not only enhancing the structural strength of the entire parachute system, but also facilitating rapid disassembly and maintenance when needed; in addition, the reversibility of the screw 8 connection means that it can be assembled and disassembled repeatedly without damage, thereby improving the maintenance efficiency and service life of the equipment, and at the same time ensuring the stability and safety of the parachute system in extreme environments.

[0061] In some embodiments, as Figure 4 shown, a cylindrical wedge 9 for reinforcement is provided on the outer periphery of the screw 8. Through the reinforcement of the cylindrical wedge 9, the structural reliability of the entire parachute system is improved, which helps to prevent the loosening of the screw 8 under severe vibration or shock, ensuring the safety of the marine observation detection equipment during the airdrop process.

[0062] Furthermore, multiple screws 8 are provided, and the multiple screws 8 are evenly distributed on the outer periphery of the umbrella stacking seat 303. By evenly arranging multiple screws 8 on the outer periphery of the umbrella stacking seat 303, the uniform force and stable connection between the umbrella stacking seat 303 and the cabin body 301 are ensured.

[0063] The present utility model also provides a method for automatically opening a parachute, which is applied to the above-mentioned parachute automatic opening device based on cam unlocking, and includes the following steps:

[0064] S1, the actuating mechanism 4 receives an unlocking signal, and the rotating latch 401 is disengaged from the fixed latch 402 to unlock the actuating mechanism 4;

[0065] S2, the parachute cabin cover 302 automatically pops open;

[0066] S3, the pilot chute 2 automatically pops out and pulls the main parachute 1 to deploy.

[0067] In the above-mentioned exemplary embodiment, by unlocking the actuating mechanism 4, after the parachute cabin cover 302 pops open, the pilot chute 2 automatically pops out and pulls the main parachute 1 to deploy, realizing the automatic opening of the parachute. The automation of the entire process greatly improves the efficiency and safety of airdrop deployment, reducing the complexity and error rate of manual operation.

[0068] In some embodiments, in step S1, when the acceleration sensor detects that the parachute is in a weightless state, the controller sends an unlocking signal to the actuating mechanism 4. By intelligently detecting whether the parachute is in a weightless state through the acceleration sensor and automatically sending an unlocking signal to the actuating mechanism 4 at an appropriate time, the parachute compartment cover 302 can be quickly opened and the parachute can be released. This not only improves the accuracy and efficiency of the airdrop deployment, but also enhances the operational safety, reduces the dependence on manual intervention, and makes the entire airdrop process more reliable and efficient.

[0069] In some embodiments, in step S1, after receiving the unlocking signal, the driving member 403 drives the rotary latch 401 to rotate and disengage from the fixed latch 402. By receiving the unlocking signal, the driving member 403 quickly drives the rotary latch 401 to rotate and disengage from the fixed latch 402, thereby achieving the rapid opening of the parachute compartment cover 302; not only can the response speed of the parachute opening be improved, but also through the fixed connection between the driving member 403 and the cabin body 301, the stability and reliability of the entire device are enhanced, and the risk of failure caused by component loosening or damage is reduced.

[0070] In some embodiments, the driving member 403 drives the cam 404 to rotate. When the cam 404 rotates to press the rotary latch 401, the rotary latch 401 rotates and disengages from the fixed latch 402. Through the setting of the cam 404, it is ensured that the rotary latch 401 can quickly and accurately rotate and disengage from the fixed latch 402 after receiving the unlocking signal, thereby achieving the rapid opening of the parachute compartment cover 302.

[0071] In some embodiments, as Figure 1 shown, in step S3, the pilot parachute 2 automatically pops out under the elastic force of the second spring 5. The second spring 5 quickly releases its elastic force when the parachute compartment cover 302 is opened, thereby pushing the pilot parachute 2 to quickly pop out and driving the main parachute 1 to deploy. This effectively improves the reaction speed of the parachute system and the efficiency of airdrop deployment. At the same time, it also reduces the mechanical complexity and potential failure points, and enhances the reliability of the entire system and the simplicity of operation.

[0072] In some embodiments, the automatic parachute opening method provided by the present utility model further includes assembling the parachute device before and after the airdrop operation, that is, packing the parachute. Specifically, the method for packing the parachute includes: sequentially storing the main parachute 1 and the pilot parachute 2 in the parachute compartment 3, pressing down the pilot parachute 2 to compress the second spring 5; while closing the parachute compartment cover 302 and pressing down forcefully, the first spring 407 contracts, so that the rotary latch 401 of the actuating mechanism 4 is locked and constrained with the fixed latch 402 to tightly close the parachute compartment cover 302 and complete the packing.

[0073] Through the description of multiple embodiments of the automatic parachute opening device based on cam unlocking of the present utility model, it can be seen that the embodiments of the automatic parachute opening device based on cam unlocking of the present utility model have at least one or more of the following advantages:

[0074] 1. For the automatic parachute opening device based on cam unlocking provided by the present utility model, the opening or closing of the parachute compartment cover 302 is controlled by the actuating mechanism 4, providing a more efficient, safe and economical solution for the aerial deployment of ocean observation detection equipment;

[0075] 2. For the automatic parachute opening device based on cam unlocking provided by the present utility model, through the setting of the cam 404, it is ensured that the rotary lock 401 can rotate quickly and accurately and disengage from the fixed lock 402 after receiving the unlocking signal, so as to realize the rapid opening of the parachute compartment cover 302;

[0076] 3. For the automatic parachute opening device based on cam unlocking provided by the present utility model, through the unlocking actuating mechanism 4, after the parachute compartment cover 302 pops open, it guides the pilot parachute 2 to automatically pop out and pulls the main parachute 1 to deploy, realizing the automatic opening of the parachute. The automation of the whole process greatly improves the efficiency and safety of aerial deployment, and reduces the complexity and error rate of manual operation.

[0077] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and the key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0078] The above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them; although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present utility model or perform equivalent replacements on some technical features; without departing from the spirit of the technical solutions of the present utility model, they should all be covered within the scope of the technical solutions claimed by the present utility model.

Claims

1. An automatic parachute opening device based on cam unlocking, characterized in that Comprising: Main parachute; Pilot chute; Parachute compartment, including a compartment body, a parachute compartment cover and a parachute stowing base, for storing the main parachute and the pilot chute; the compartment body is hinged to the parachute compartment cover, the compartment body is fixedly connected to the parachute stowing base, the main parachute is installed on the parachute stowing base, and the pilot chute is stored above the main parachute; Actuating mechanism, which is installed at one end of the compartment body close to the parachute compartment cover and is movably connected to the parachute compartment cover, for controlling the opening or closing of the parachute compartment cover; the actuating mechanism includes a rotary latch installed on the compartment body and a fixed latch installed on the parachute compartment cover; When the actuating mechanism is locked, the rotary latch and the fixed latch restrain each other, and the parachute compartment cover is in a closed state to store the main parachute and the pilot chute; when the actuating mechanism is unlocked, the rotary latch and the fixed latch disengage from each other, and the parachute compartment cover is in an open state to open the main parachute and the pilot chute; the actuating mechanism further includes a driving member fixedly connected to the compartment body, the driving member is fixedly connected to the compartment body, for receiving an unlocking signal and driving the rotary latch to rotate and disengage from the fixed latch; a cam for transmission is installed at the rotating shaft of the driving member, the cam rotates with the rotating shaft of the driving member and is always connected to the rotary latch; when the convex portion of the cam presses the rotary latch, the rotary latch rotates and disengages from the fixed latch.

2. The automatic parachute opening device based on cam unlocking according to claim 1, characterized in that, Further comprising a controller, the controller is communicatively connected to the actuating mechanism, for sending an unlocking signal to the actuating mechanism to control the actuating mechanism to open.

3. The automatic parachute opening device based on cam unlocking according to claim 2, wherein The controller is provided with an acceleration sensor, the acceleration sensor is used for detecting whether the parachute is in a weightless state; when the parachute is in a weightless state, the controller sends an unlocking signal to the actuating mechanism.

4. The automatic parachute opening device based on cam unlocking according to claim 1, characterized in that, The actuating mechanism further includes a mounting seat, the mounting seat is fixedly connected to the compartment body.

5. The automatic parachute opening device based on cam unlocking according to claim 4, characterized in that The mounting seat is provided with a jack, the actuating mechanism further includes a pin shaft, the pin shaft passes through the rotary latch and the jack, so that the rotary latch rotates around the pin shaft.

6. The automatic parachute opening device based on cam unlocking according to claim 4, characterized in that, The actuating mechanism further includes an elastic member, one end of the elastic member is used for being fixedly connected to the mounting seat, and the other end is used for pressing against the rotary latch, so that the rotary latch and the fixed latch restrain each other.

7. The automatic parachute opening device based on cam unlocking according to claim 6, characterized in that, The elastic member includes a first spring and a limit post for fixing the first spring to the mounting seat, the limit post is fixed on the mounting seat, and the first spring is sleeved on the limit post.

8. The automatic parachute opening device based on cam unlocking according to claim 1, wherein The pilot chute is provided with a second spring, the second spring is installed between the pilot chute and the main parachute; when the parachute compartment cover is closed, the second spring is in a compressed state.

9. The automatic parachute opening device based on cam unlocking according to claim 1, wherein, A torsion spring hinge is installed at the hinge joint of the compartment body and the parachute compartment cover; when the parachute compartment cover is closed, the torsion spring hinge is in a closed state.

10. The automatic parachute opening device based on cam unlocking according to claim 9, characterized in that, A hinge pad is provided at the connection part of the torsion spring hinge and the compartment body, and the outer surface of the hinge pad fits with the inner surface of the compartment body.

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