One-click linkage unlocking device

Abstract

The one-button linkage unlocking device provided by this invention includes an unlocking handle assembly, a steel cable assembly, and a locking assembly. The steel cable assembly includes an active steel cable, a cylindrical cover, a cylindrical body, a pull block, a pull block connecting plate, and a driven steel cable. One end of the active steel cable is connected to the unlocking handle assembly, and the other end passes through the cylindrical cover and connects to one end of the pull block. The other end of the pull block is threadedly connected to the pull block connecting plate, which is located inside the cylindrical cover and has multiple driven steel cables mounted on it, each connected to a multiple locking assembly. Pulling the active steel cable causes the pull block connecting plate to move within the cylindrical body, thereby driving the driven steel cables and simultaneously unlocking multiple locking assemblies. This invention is applied to unlocking aircraft seat parachute packs, reducing the separation time of the backrest parachute from the seat, reducing the number of operation steps during separation, achieving one-button separation of the parachute, and ensuring the stability of the parachute separation state.

Description

Technical Field

[0001] This invention belongs to the field of aircraft life-saving technology, and relates to aircraft seat life-saving parachute packs, specifically a one-button linkage unlocking device. Background Technology

[0002] Currently, aircraft pilot seats with a backrest-style parachute layout have the parachute integrated into the seat back, with multiple locking positions. These positions are unlocked individually during emergency evacuation. The technical problems are that the operation steps are numerous, the unlocking status cannot be consistent, and the parachute separation time is long, delaying the rescue time for passengers. Summary of the Invention

[0003] Purpose of the invention: The one-button linkage unlocking device provided by the present invention can effectively reduce the separation time of the life parachute, ensure the stability of the separation state, and protect the safety of the occupants.

[0004] The technical solution of the present invention: a one-button linkage unlocking device, comprising an unlocking handle assembly, a steel cable assembly, and a locking assembly. The steel cable assembly includes an active steel cable, a cylinder cover, a cylinder, a pull block, a pull block connecting plate, and a driven steel cable. One end of the active steel cable is connected to the unlocking handle assembly, and the other end passes through the cylinder cover and is connected to one end of the pull block. The other end of the pull block is threadedly connected to the pull block connecting plate. The pull block connecting plate is located inside the cylinder cover and has multiple driven steel cables disposed thereon, which are respectively connected to multiple locking assemblies. Pulling the active steel cable causes the pull block connecting plate to move within the cylinder, thereby driving the driven steel cables and unlocking multiple locking assemblies simultaneously.

[0005] In the above scheme, the locking components are a lumbar locking pin assembly and a shoulder locking pin assembly. The lumbar locking pin assembly is installed on both sides of the seat, and the shoulder locking pin assembly is installed on the upper part of the backrest on both sides. The cable assembly is provided with four driven steel cables, which are respectively connected to two lumbar locking pin assemblies and two shoulder locking pin assemblies, so that the driven steel cables simultaneously drive the lumbar locking pin assembly and the shoulder locking pin assembly to unlock at the same time.

[0006] In the above solution, the unlocking handle assembly is installed on the side of the seat surface assembly and includes a button, a locking cylinder, a lock body, a rocker arm, a rocker arm, and an active steel cable. The locking cylinder is connected to the rocker arm by bolts, and the rocker arm is connected to the rocker arm by bolts. An active steel cable is hung on the rocker arm. Turning the locking cylinder causes the rocker arm and the active steel cable to move, which in turn drives the driven steel cable to move.

[0007] In the above solution, the unlocking handle assembly also includes a connecting rod, a spring, and a locking block. The locking block is installed inside the lock body, and the button is installed inside the lock cylinder. The button is threadedly connected to the connecting rod. The upper end of the connecting rod is provided with a frustum that presses against the spring. The spring provides a restoring force to the connecting rod. The lower end of the connecting rod has a locking slot that can lock the locking block. After pressing the button, the locking block will slide up and down in the slide rail of the lock cylinder.

[0008] In the above solution, the waist locking pin assembly and the shoulder locking pin assembly are respectively connected to the life-saving parachute. The lock body is provided with a front latch and a rear latch, which are used to lock the locking block, so that the life-saving parachute is in a locked state when the locking block is in the front latch and in an unlocked state when the locking block is in the rear latch.

[0009] In the above solution, the waist locking pin assembly includes a cylindrical housing, a locking pin, a spring, a locking pin connecting rod, and a cylindrical cover. The driven steel cable passes through the cylindrical cover and hangs on the locking pin connecting rod. The locking pin connecting rod is threadedly connected to the locking pin. A spring is installed between the locking pin and the cylindrical cover. The spring provides a restoring force to the locking pin, causing the driven steel cable to pull the locking pin to move within the cylindrical housing.

[0010] In the above scheme, the locking pin has a cross-shaped structure, with the "I" part forming an annular piston that moves inside the cylindrical shell, so that one end of the "∣" part presses against the bottom, and the other end is connected to the driven steel cable.

[0011] In the above solution, the shoulder locking pin assembly includes a rotating arm, a locking pin, a spring, a cylinder, and a support. One end of the rotating arm is connected to the support, which is threaded to the seat back. The other end is connected to the driven steel cable. The cylinder contains a spring that provides a restoring force to the locking pin. The movement of the driven steel cable pulls the rotating arm to rotate, and the rotating arm drives the locking pin to move within the cylinder.

[0012] In the above scheme, the support is also provided with a driven steel cable running guide hole and a rocker arm connected to the locking pin.

[0013] In the above scheme, the steel cable assembly is installed on the lower backrest plate.

[0014] The advantages and beneficial effects of this invention are as follows: This patented one-button linkage unlocking device is applied to aircraft seat parachute unlocking, reducing the separation time of the parachute from the seat, reducing the number of operation steps during separation, achieving one-button separation of the parachute, and ensuring the stability of the parachute's separated state. This unlocking device solves the technical problems of long parachute separation time, numerous operation steps, and inability to maintain the unlocked state during emergency evacuation of aircraft seats equipped with parachutes. The interface connecting to the seat is simple and reliable, and it can be widely applied to seats such as pilot seats and operator seats in transport aircraft that require parachute support, making it easy to promote and apply, with broad prospects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the unlocking handle assembly of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the unlocking handle assembly of the present invention.

[0018] Figure 4 This is a schematic diagram of the lock body structure of the present invention.

[0019] Figure 5 This is a schematic diagram of the internal structure of the steel cable assembly of the present invention.

[0020] Figure 6 This is a schematic diagram of the internal structure of the waist locking pin assembly of the present invention.

[0021] Figure 7 This is a schematic diagram of the internal structure of the shoulder locking pin assembly of the present invention. Detailed Implementation

[0022] The present invention will now be described in further detail through specific embodiments.

[0023] like Figure 1 As shown, the one-button linkage unlocking device consists of an unlocking handle assembly 1, a steel cable assembly 2, a waist locking pin assembly 3A, and a shoulder locking pin assembly 3B. The unlocking handle assembly 1 is installed on the side of the seat surface assembly for easy operation. The steel cable assembly 2 is installed on the lower plate of the backrest. The unlocking handle assembly 1 is connected to the steel cable assembly 2 via an active steel cable 9. The waist locking pin assembly 3A is installed on both sides of the seat. The shoulder locking pin assembly 3B is installed on the upper end of the backrest. The steel cable assembly 2 is connected to the waist locking pin assembly 3A and the shoulder locking pin assembly 3B via a driven steel cable 17.

[0024] like Figure 2 As shown, the unlocking handle assembly 1 consists of a button 4, a locking cylinder 5, a lock body 6, a rocker arm 7, a rocker arm 8, and an active steel cable 9. The locking cylinder 5 is connected to the rocker arm 7 by bolts, and the rocker arm 7 is connected to the rocker arm 8 by bolts. The active steel cable 9 is hung on the rocker arm 8. Moving the locking cylinder 5 can drive the rocker arm 8 to move back and forth. The active steel cable is hung on the rocker arm, which ultimately drives the active steel cable 9 to move.

[0025] The unlocking handle assembly enables one-button separation of the life-saving parachute from the seat and can maintain the separated state. The button is connected to the connecting rod via threads, and a locking block is fixed on the connecting rod. A spring is fitted onto the connecting rod. All of these parts are installed inside the locking cylinder. By pressing the button, the locking block can be moved up and down, and the locking cylinder can drive the rocker arm.

[0026] like Figure 3 As shown, a button 4, a connecting rod 10, and a spring 11 are installed inside the locking cylinder 5, and a locking block 12 is installed inside the lock body 6. The button 4 is threadedly connected to the connecting rod 10. The upper end of the connecting rod 10 has a frustum, which can press the spring 11. The spring 11 provides a restoring force to the connecting rod 10. The lower end of the connecting rod 10 has a locking slot, which can lock the locking block 12. After pressing the button 4, the locking block 12 can be driven to slide up and down in the slide of the locking cylinder 5.

[0027] like Figure 4 As shown, the lock body 6 has two latches for locking the locking block 12. When the locking block 12 is in the front latch, the parachute is in a locked state, and when the locking block 12 is in the rear latch, the parachute is in an unlocked state.

[0028] like Figure 5 As shown, the cable assembly 2 consists of a drive cable 9, a cylinder cover 13, a cylinder 14, a pull block 15, a pull block connecting plate 16, and driven cables 17. The drive cable 9 passes through the cylinder cover 13 and is hung on the pull block 15. The pull block 15 is threadedly connected to the pull block connecting plate 16. Four driven cables 17 are hung on the pull block connecting plate 16. The drive cable 9 can pull the pull block connecting plate 16 to move inside the cylinder 14.

[0029] The cable assembly enables one active cable to drive four driven cables. The active cable passes through the cylinder cover and hangs on the pull block. The pull block is connected to the pull block connecting plate by threads. The pull block connecting plate has four driven cables hanging on it. The pull block and the pull block connecting plate can reciprocate inside the cylinder.

[0030] like Figure 6 As shown, the waist locking pin assembly 3A consists of a driven steel cable 17, a cylindrical housing 18, a locking pin 19, a spring 20, a locking pin connecting rod 21, and a cylindrical cover 22. The driven steel cable 17 passes through the cylindrical cover 22 and hangs on the locking pin connecting rod 21. The locking pin connecting rod 21 is threadedly connected to the locking pin 19. A spring 20 is installed between the locking pin 19 and the cylindrical cover 22, providing a restoring force for the locking pin 19. The driven steel cable 17 can pull the locking pin 19 to move within the cylindrical housing 18.

[0031] The waist locking pin assembly enables the locking and disengagement of the parachute's waist connection. The driven steel cable passes through the cylindrical cover and hangs on the locking pin connecting rod. The locking pin connecting rod is connected to the locking pin via threads. The driven steel cable can drive the locking pin to reciprocate within the cylinder. A spring is pressed between the cylindrical cover and the locking pin, providing the locking pin with a restoring force through compression.

[0032] like Figure 7 As shown, the shoulder locking pin assembly 3B consists of a rotating arm 24, a locking pin 25, a spring 26, a cylinder 27, a support 28, and a driven steel cable 17. The driven steel cable 17 pulls the rotating arm 24 to rotate, and the rotating arm 24 drives the locking pin 25 to move within the cylinder 27. The rotating arm 24 is connected to the support 28, which is threadedly connected to the seat back. The cylinder 27 contains a spring 26, which provides a restoring force for the locking pin 25.

[0033] The shoulder locking pin assembly enables the locking and disengagement of the parachute's shoulder connection. The driven steel cable pulls the rotating arm to rotate, and the rotating arm drives the locking pin to move inside the cylinder. The rotating arm is connected to the support, and the support is threaded to the seat back. A spring is installed inside the cylinder to provide a restoring force for the locking pin.

[0034] This invention is not limited to the above-described embodiments. If any modifications or variations to this invention do not depart from the spirit and scope of this invention, and if such modifications or variations fall within the scope of the claims and equivalent technologies of this invention, then this invention also intends to include such modifications and variations.

Claims

1. A one-button linkage unlocking device, comprising an unlocking handle assembly (1), a steel cable assembly (2), and a locking assembly, characterized in that, The unlocking handle assembly (1) is installed on the side of the seat surface assembly and includes a button (4), a locking cylinder (5), a lock body (6), a rocker arm (7), a rocker arm (8), and an active steel cable (9). The locking cylinder (5) is bolted to the rocker arm (7), and the rocker arm (7) is bolted to the rocker arm (8). The active steel cable (9) is suspended on the rocker arm (8). Turning the locking cylinder (5) causes the rocker arm (8) and the active steel cable (9) to move. The steel cable assembly (2) includes an active steel cable (9), a cylinder cover (13), a cylinder (14), and a pull block (1). 5) Pull block connecting plate (16) and driven steel cable (17). One end of the active steel cable (9) is connected to the unlocking handle assembly (1), and the other end passes through the cylinder cover (13) and is connected to one end of the pull block (15). The other end of the pull block (15) is threadedly connected to the pull block connecting plate (16). The pull block connecting plate (16) is located inside the cylinder cover (13) and has multiple driven steel cables (17) on it, which are respectively connected to multiple locking components. Pulling the active steel cable (9) causes the pull block connecting plate (16) to move inside the cylinder (14), thereby driving the driven steel cable (17) to move. 7) To unlock multiple locking components simultaneously; the locking components are a waist locking pin assembly (3A) and a shoulder locking pin assembly (3B). The waist locking pin assembly (3A) is installed on both sides of the seat, and the shoulder locking pin assembly (3B) is installed on the upper part of the backrest on both sides. The cable assembly (2) is provided with four driven cables (17), which are connected to two waist locking pin assemblies (3A) and two shoulder locking pin assemblies (3B) respectively, so that the driven cables (17) simultaneously drive the waist locking pin assembly (3A) and the shoulder locking pin assembly (3B) to unlock simultaneously. The unlocking handle assembly (1) also includes a connecting rod (10), a spring (11), and a locking block (12). The locking block (12) is installed inside the lock body (6), and the button (4) is installed inside the lock cylinder (5). The button (4) is threadedly connected to the connecting rod (10). The upper end of the connecting rod (10) is provided with a frustum that presses against the spring (11). The spring (11) provides a restoring force to the connecting rod (10). The lower end of the connecting rod (10) has a locking slot that can lock the locking block (12). After pressing the button (4), the locking block (12) is driven to slide up and down in the slide of the lock cylinder (5).

2. The one-button linkage unlocking device according to claim 1, characterized in that, The waist locking pin assembly (3A) and the shoulder locking pin assembly (3B) are respectively connected to the life-saving umbrella. The lock body (6) is provided with a front latch and a rear latch, which are used to lock the latch block (12) respectively, so that the life-saving umbrella is locked when the latch block (12) is in the front latch and unlocked when the latch block (12) is in the rear latch.

3. The one-button linkage unlocking device according to claim 2, characterized in that, The waist locking pin assembly (3A) includes a cylindrical housing (18), a locking pin (19), a spring (20), a locking pin connecting rod (21) and a cylindrical cover (22). The driven cable (17) passes through the cylindrical cover (22) and is hung on the locking pin connecting rod (21). The locking pin connecting rod (21) is threadedly connected to the locking pin (19). A spring (20) is installed between the locking pin (19) and the cylindrical cover (22). The spring (20) provides a resilience force for the locking pin (19) to make the driven cable (17) pull the locking pin (19) to move within the cylindrical housing (18).

4. The one-button linkage unlocking device according to claim 3, characterized in that, The locking pin (19) has a cross-shaped structure. The "one" character part forms an annular piston to move within the cylindrical housing (18), making one end of the "|" character part abut against the bottom and the other end connected to the driven cable (17).

5. The one-button linkage unlocking device according to claim 1, characterized in that, The shoulder locking pin assembly (3B) includes a swing arm (24), a locking pin (25), a spring (26), a cylinder (27) and a support (28). One end of the swing arm (24) is connected to the support (28). The support (28) is threadedly connected to the seat back. The other end is connected to the driven cable (17). A spring (26) is installed within the cylinder (27) to provide a resilience force for the locking pin (25). The movement of the driven cable (17) pulls the swing arm (24) to rotate, and the swing arm (24) drives the locking pin (25) to move within the cylinder (27).

6. The one-button linkage unlocking device according to claim 5, characterized in that, The support (28) is further provided with a guiding hole for the driven cable (17) to run and a rocker arm connected to the locking pin (25).

7. The one-button linkage unlocking device according to claim 1, characterized in that, The cable assembly (2) is installed on the lower back plate.

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