Separating mechanism for multi-working-condition rapid separation

Abstract

The utility model belongs to the technical field of airborne landing and air drop, and relates to a multi-working-condition quick separation disengaging mechanism which comprises a lock body, a hook, a lock shaft, an initiating explosive device, a connecting bolt, a spring, an umbrella connecting piece, a sensor and an output device, the lock body and the hook are locked and restrained through the lock shaft, and the hook is installed on the lock body through the connecting bolt. And a spring for providing rotation torque of the hook is installed, set signal output and input parameters are preselected on the sensor and the output equipment, once the preset parameters are reached, signal input is started, the initiating explosive device is excited to push the lock shaft to slide out of the hook, the hook rotates around the connecting bolt under the auxiliary action of the spring force, and the umbrella connecting piece is separated from the hook. According to the mechanism, different parameters are designed according to the requirements of each working condition, the rapid separation requirement under multiple working conditions is met, the functions of the mechanism can be independently achieved under each working condition, and mutual interference and influence are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of airdrop technology and relates to a detachment mechanism for rapid separation under multiple working conditions. Background Technology

[0002] When equipment and cargo are airdropped from an aircraft, rapid separation from the parachute is crucial to prevent it from being overturned or dragged by strong winds on the ground. The separation mechanism is a key component widely used in airdrop operations, and its operational characteristics affect the successful completion of the mission. Existing separation mechanisms typically employ friction, lever, spring, or oscillating types, resulting in uneven separation and failure to complete the separation as required. Using spring energy storage or utilizing the parachute's pull to achieve separation of the cargo and parachute system after landing is pre-manually controlled within a manageable area. However, in areas inaccessible to humans, predetermined parameters need to be set based on pre-defined conditions to achieve the desired function through mechanism actuation. The manually controllable area has a narrow applicable range, the pre-set parameters are limited, and the separation function is often unsuccessful, only fulfilling the function under a single condition. It often fails to meet the requirements of multiple requirements and multiple operating conditions. Utility Model Content

[0003] The purpose of this invention is to provide a rapid separation mechanism for multiple working conditions. This mechanism is designed to achieve rapid separation under various working conditions. The separation mechanism is designed with different thresholds as its response output according to the number of working conditions and the different working condition parameters. The operation of each part is controlled according to the output parameter variables.

[0004] The technical solution adopted by this utility model is as follows: a multi-condition rapid separation detachment mechanism includes a lock body, a hook, a lock shaft, a pyrotechnic device, a connecting bolt, a spring, an umbrella connector, and a sensor and output device. The lock body and the hook are locked and constrained by the lock shaft. The hook is installed on the lock body by the connecting bolt and is equipped with a spring that provides the rotation torque of the hook. The sensor and output device have pre-selected signal output and input parameters. Once the predetermined parameters are reached, the signal input is activated, which triggers the pyrotechnic device to push the lock shaft to slide out of the hook. Under the assistance of the spring force, the hook rotates around the connecting bolt, and the umbrella connector disengages from the hook.

[0005] In a preferred embodiment, a safety pin is provided between the locking shaft and the hook for safety, which is sheared off when the pyrotechnic device pushes the locking shaft. The locking shaft and hook have a cantilever beam structure.

[0006] In a preferred embodiment, the sensor and output device are provided with multiple umbrella connectors, wherein one umbrella connector is under stress, and the remaining umbrella connectors are non-stressed components. After the stressed umbrella connector operates and disengages from the lock body, one of the other non-stressed umbrella connectors will be under stress, thus sequentially completing different preset working conditions.

[0007] In summary, due to the adoption of the above technical solutions, the beneficial effects of this utility model are as follows: In this utility model, the mechanism is designed with different parameters for each working condition, which meets the requirements of rapid separation under multiple working conditions, and each working condition can realize its function independently without interfering with or affecting each other. Attached Figure Description

[0008] Figure 1 Two-dimensional diagram (locking diagram) to ensure installation and assembly for embodiments of this utility model;

[0009] Figure 2 The installation three-dimensional diagram (locking diagram) is provided to ensure the implementation of this utility model embodiment;

[0010] Figure 3 This is a working diagram (unlocking diagram) for ensuring the separation of the umbrella in this utility model embodiment;

[0011] Figure 4 This is a flowchart illustrating the rapid separation of the equipment during the airdrop process of this utility model.

[0012] The markings in the diagram are: 1-lock body; 2-hook; 3-lock shaft; 4-safety pin; 5-pyrotechnic device; 6-connecting bolt; 7-plug; 8-spring; 9-plug; 10-umbrella connector; 11-sensor and output device; 12-sealing ring. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 only used to explain this utility model and are not intended to limit this utility model.

[0014] like Figure 1-2 As shown, this utility model embodiment provides a device for ensuring that the equipment achieves separation of the object and umbrella according to a prescribed procedure, and a method for achieving rapid separation according to this utility model embodiment.

[0015] This utility model device is a mechanical constant-force safety structure. The lock body 1 serves as the mounting interface for all components. The lock body 1 and hook 2 bear the greatest force. The hook 2 is mounted on the lock body 1 via connecting bolts 6 and is equipped with a spring 8, providing the torque for the hook 2's rotation. A locking shaft 3 provides locking constraint between the lock body 1 and hook 2. To ensure it operates according to a predetermined program and prevent unpredictable operation, a safety pin 4 is added between the locking shaft and the hook for safety, ensuring reliable air connection. When the preset parameter threshold is reached, a signal is output to the pyrotechnic device 5, which instantly activates and generates high-pressure gas. The high-pressure gas is ejected outward along the gas channel a inside the lock body, pushing the locking shaft 3 to slide and simultaneously cutting off the safety pin 4. The locking shaft 3 continues to slide until it separates from the hook 2. Under the action of the spring 8, the hook rotates around the connecting bolt 6, and the umbrella connector 10 quickly separates from the cavity of the hook 2, completing the predetermined function. Each operating condition is used and controlled independently. One of the umbrella connectors 10 is under stress, while the others are non-stressed. After the stressed connector 10 completes its operation, it disengages from the lock body 1. The second umbrella connector 10 rotates under the influence of the connecting rope and bears the weight of the airdrop system. After the second connector 10 operates according to a predetermined program, it disengages from the stressed components. Once this operational condition is resolved, the subsequent workflow remains the same until the last operational condition is completed.

[0016] Once the first working condition is separated, the lock body rotates rapidly under the action of the connecting belt in the second working condition according to the predetermined procedure. The connecting parts in the second working condition begin to be stressed, and the subsequent process is the same as the separation process of the first working condition, until the last working condition is completed.

[0017] This invention achieves reliable aerial connection through the cantilever beam structure of the locking shaft 3 and the hook 2. It uses a pre-set signal threshold to output a signal and control the timing of separation (the timing of separation is different for each working condition). It provides a separation output signal to the pyrotechnic device 5. After receiving the signal, the pyrotechnic device 5 is activated to provide initial power, release a series of constraints, and finally unlock instantly, completing the predetermined function.

[0018] The method of using this device is as follows: Figure 1 As shown, without the safety pin 4, check if the sliding of the locking shaft 3 is smooth. When the locking shaft 3 completely separates from the hook 2, the hook 2 should be able to freely and quickly separate under the torque of the spring 8. Simultaneously, after connecting the locking shaft 3 to the hook, it should reliably lock. Depending on the required parameter settings for different working conditions, select the corresponding parameter settings and install the corresponding sensors and processing equipment in advance. According to the working sequence of each working condition, install them in the corresponding installation positions, currently in the installation state (ground locked state). Figure 2 As shown. Figure 3As shown, after the airdrop, during the airdrop process, once the first working condition reaches the predetermined threshold, a signal is transmitted to the pyrotechnic device 5. The pyrotechnic device 5 instantly detonates, generating high-pressure gas that shears the safety pin 4. Under the continued pressure of the high-pressure gas, it pushes the locking shaft 3 to slide rapidly, releasing the constraint on the hook 2. The hook 2 rotates under the torque of the spring 8, releasing the umbrella connector 10. The umbrella connector 10 separates from the hook 2, as... Figure 4 As shown, the first working condition is complete. Following the subsequent procedures and the entire process, the same steps are applied to the second, third, and subsequent working conditions for rapid separation, until all predetermined working conditions are successfully separated.

[0019] like Figure 4 As shown, this utility model includes the following three steps:

[0020] S1 inputs relevant parameters and signals to the sensor and output device 11 as needed under various operating conditions, including signal acquisition and pre-selection.

[0021] During pre-installation of S2, without installing the safety pin 4, check whether its air passage a is unobstructed and whether the sealing ring 12 is effective. Slide the locking shaft 3 and then release the locking shaft 3. At the moment the locking shaft 3 separates from the hook 2, the hook achieves its rapid separation under the torque of the spring 8.

[0022] During the airdrop process, S3 activates the signal input once the predetermined parameters are reached, based on the pre-selected signal output and input. This triggers the pyrotechnic device 5, which in turn pushes the locking shaft 3 to slide. During this process, the safety pin 4 is sheared. At the instant the locking shaft 3 slides out of the hook 2, the hook 2 rotates around the connecting bolt 6 under the assistance of the spring force, and the umbrella connector 10 disengages from the hook 3, completing the operation.

[0023] The function of disengaging from S3 under the remaining operating conditions under S4 until all operating conditions are completed is predetermined.

[0024] The above technical solutions are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Therefore, any equivalent changes made in accordance with the scope of this utility model patent shall still fall within the protection scope of this utility model.

Claims

1. A multi-condition rapid separation detachment mechanism, comprising a lock body (1), a hook (2), a lock shaft (3), a pyrotechnic device (5), a connecting bolt (6), a spring (8), an umbrella connector (10), and a sensor and output device (11), characterized in that: Locking constraint is achieved between the lock body (1) and the hook (2) by a locking shaft (3). The hook (2) is mounted on the lock body (1) by a connecting bolt (6) and is equipped with a spring (8) that provides the rotation torque of the hook (2). The signal output and input parameters are preset on the sensor and output device (11). Once the preset parameters are reached, the signal input is activated, and the pyrotechnic device (5) is activated to push the locking shaft (3) to slide out of the hook (2). Under the assistance of the spring force, the hook (2) rotates around the connecting bolt (6), and the umbrella connector (10) disengages from the hook (2).

2. The multi-condition rapid separation detachment mechanism as described in claim 1, characterized in that: A safety pin (4) is provided between the lock shaft (3) and the hook (2) for safety. The safety pin (4) is cut off during the process of igniting the pyrotechnic device (5) to push the lock shaft (3).

3. The multi-condition rapid separation detachment mechanism as described in claim 1, characterized in that: The locking shaft (3) and hook (2) are cantilever beam structures.

4. The multi-condition rapid separation detachment mechanism as described in claim 1, characterized in that: The sensor and output device (11) is provided with multiple umbrella connectors (10), wherein one umbrella connector (10) is subjected to force, and the remaining umbrella connectors are non-force-bearing components.

5. The multi-condition rapid separation detachment mechanism as described in claim 4, characterized in that: After the stressed umbrella connector (10) works and disengages from the lock body (1), one of the unstressed umbrella connectors (10) will be stressed, and different preset working conditions will be completed in sequence.

Images