Electromechanical integrated ejection seat forced safety device

Abstract

The utility model belongs to the field of pilot emergency ejection lifesaving, and particularly relates to an electromechanical integrated ejection seat forced safety device which comprises a two-stage plug-pull type quick release pin and an ejection handle locking device, the two-stage plug-pull type quick release pin comprises a pin rod, a steel ball, a pin shaft, a spring and a pin cap, the pin rod is of a cavity structure, an annular groove is formed in the middle of the pin rod, and the ejection handle locking device is arranged in the annular groove. The steel ball is located in the annular groove, the pin shaft is inserted into the pin rod to eject the steel ball to the outer circle face of the pin rod, and limiting of the quick-release pin is achieved. A spring is arranged between the pin rod and the pin cap and connected to the pin rod in a sleeving mode, so that the pin rod axially moves under the action of external force to push the steel ball into the annular groove, and unlocking of the quick-release pin is achieved. The ejection handle locking device comprises an ejection handle, an ejector rod and a base, a groove matched with the ejector rod is formed in the ejection handle, a through groove for the ejector rod to move is formed in the base, and after the second-stage plug-in type quick release pin is inserted into the base, the ejector rod enters the groove, so that the ejection handle is locked, and the second-stage plug-in type quick release pin is pulled out for unlocking.

Description

Technical Field

[0001] This utility model belongs to the field of emergency ejection rescue for pilots, specifically relating to an electromechanical integrated ejection seat forced safety device. Background Technology

[0002] Rocket ejection seats are equipped with a power switch and an ejection handle locking device. The power switch is generally located on the right side of the seat and uses a quick-release pin to control the power supply. The ejection handle locking device is located in the center of the front of the seat and uses another quick-release pin to lock the ejection handle. These two quick-release pins need to be removed before takeoff. In actual use, the quick-release pin controlling the power switch may be forgotten, which reduces the safety of the seat. Utility Model Content

[0003] The purpose of this utility model is to provide an electromechanical integrated ejection seat forced safety device that can realize the design requirement of turning on the power switch and releasing the ejection handle lock when the aircraft takes off, avoid the quick release pin of the control power switch being accidentally pulled out when the aircraft takes off, and improve the safety of the seat.

[0004] The technical solution adopted by this utility model is as follows: An electromechanical integrated ejection seat safety device includes a two-stage pluggable quick-release pin and an ejection handle locking device. The two-stage pluggable quick-release pin includes a pin rod, a steel ball, a pin shaft, a spring, and a pin cap. The pin rod has a cavity structure with an annular groove in its middle. The steel ball is located in the annular groove. The pin shaft is inserted into the pin rod, pushing the steel ball out to the outer surface of the pin rod, thus limiting the quick-release pin. A spring is provided between the pin rod and the pin cap, and the spring is sleeved on the pin rod, causing the pin rod to move axially under external force, pushing the steel ball into the annular groove to unlock the quick-release pin. The ejection handle locking device includes an ejection handle, a push rod, and a base. The ejection handle has a groove that mates with the push rod, and the base has a through groove for the push rod to move. After the two-stage pluggable quick-release pin is inserted into the base, the push rod enters the groove, locking the ejection handle. Pulling out the two-stage pluggable quick-release pin unlocks the mechanism.

[0005] In a preferred embodiment, the safety device further includes a power switch, which is a cam rotary switch located at the end of the pin shaft and fixedly connected to the ejector handle locking device. The power switch can be switched on and off when the pin moves along the pin shaft.

[0006] In a preferred embodiment, the two-stage plug-in quick-release pin further includes a threaded handle that is threaded to an externally threaded pin rod to provide space for movement of the spring, pin shaft, and pin cap.

[0007] In a preferred embodiment, one end of the pin is threaded and threadedly connected to the pin cap. When the pin cap is pressed, the pin moves and the steel ball enters the annular groove of the pin. The steel ball does not protrude from the outer surface of the pin, so as to achieve quick-release pin unlocking.

[0008] The base is threadedly connected to the positioning nut, which restricts the removal of the two-stage plug-in quick-release pin.

[0009] In a preferred embodiment, the ejector handle locking device further includes a locating pin for limiting the ejector rod to prevent it from falling off.

[0010] The ejection handle locking device also includes a positioning nut, which is connected to the base via threads to restrict the removal of the two-stage plug-in quick-release pin.

[0011] In a preferred embodiment, the power switch and the ejector handle locking device are connected by screws.

[0012] In summary, the beneficial effects of this utility model are as follows: By adopting the above-mentioned technical solution, the power switch and the ejector handle locking device are integrated into a single design, and a two-stage pluggable quick-release pin controls the locking of the power switch and the ejector handle. The product has a simple structure, is easy to operate, and has high reliability. Therefore, it is practical, easy to promote and apply, and has significant practical value. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural diagram of the two-stage plug-in quick-release pin of this utility model;

[0015] Figure 3 This is a structural diagram of the present invention when all two stages are inserted;

[0016] Figure 4 This is a structural diagram of the first stage of this utility model when it is pulled out;

[0017] Figure 5 This is a structural diagram of the present invention when all two stages are fully pulled out.

[0018] The markings in the diagram are: 1 - Two-stage plug-in quick-release pin, 2 - Power switch, 3 - Ejection handle locking device, 4 - Screw, 5 - Pin, 5a - Annular groove, 6 - Steel ball, 7 - Pin shaft, 8 - Spring, 9 - Handle, 10 - Nameplate, 11 - Pin cap, 12 - Ejection handle, 12a - Groove, 13 - Top rod, 14 - Positioning pin, 15 - Base, 15a - Through groove, 16 - Positioning nut, 17 - Power switch cam. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1 , 2 3, 4, The electromechanical integrated ejection seat safety device mainly includes a two-stage plug-in quick-release pin 1, a power switch 2, and an ejection handle locking device 3. The power switch 2 and the ejection handle locking device 3 are connected by four screws 4. The power switch 2 is a cam rotary switch.

[0021] The two-stage plug-in quick-release pin consists of a pin rod 5, a steel ball 6, a pin shaft 7, a spring 8, a handle 9, a nameplate 10, and a pin cap 11. The steel ball is located in the middle of the pin rod; the nameplate 10 is riveted to the handle 9.

[0022] One end of the pin 5 is threaded and connected to the handle 9. Four D2mm holes are provided in the middle, and D2mm steel balls are installed inside. The holes are punched and sealed around the edges.

[0023] One end of the pin 7 is threaded and threaded to the pin cap 11; the other end of the pin 7 pushes the steel ball 6 out of the outer circle of the pin rod 5 to achieve the limit of the quick release pin; a spring 8 is provided between the pin rod 5 and the pin cap 11, and the spring 8 is sleeved on the pin rod 5; after the pin cap 11 is pressed and the pin rod 5 moves, the steel ball 6 enters the annular groove of the pin rod, and the steel ball does not protrude out of the outer circle of the pin rod 5 to achieve the unlocking of the quick release pin.

[0024] The ejection handle locking device consists of an ejection handle 12, a push rod 13, a positioning pin 14, a base 15, and a positioning nut 16. The ejection handle 12 has a groove 12a that mates with the push rod 13. After the two-stage quick-release pin is inserted into the base, the push rod 13 enters the groove 12a of the ejection handle 12, preventing the ejection handle 12 from being pulled out. The positioning pin 14 restricts the push rod 13, preventing it from falling out. The positioning nut 16 is threaded to the base 15, restricting the removal of the two-stage quick-release pin.

[0025] The power switch 2 is connected to the base 15 by screw 4, and the power switch cam 17 can be rotated to turn the power on and off.

[0026] The implementation principle of this utility model embodiment is as follows: Figure 3 As shown, press the pin cap 11 to fully insert the secondary plug-in quick release pin 1 into the base. At this time, the power switch 2 is turned off, the power to the seat is turned off, the ejection handle locking device 3 is locked, and the ejection handle cannot be pulled out. Figure 4 As shown, without pressing the pin cap, pull the second-stage plug-in quick-release pin directly until it cannot be pulled out. Power switch 2 is turned on, and the seat power is turned on. Figure 5 As shown, press the pin cap 11 to completely pull out the secondary plug-in quick release pin 1, turn on the power switch 2, turn on the power to the seat, unlock the ejection handle locking device 3, and the ejection handle can be pulled out.

[0027] 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. An electromechanical integrated ejection seat forced safety device, comprising a two-stage plug-in quick-release pin (1) and an ejection handle locking device (3), characterized in that: The two-stage plug-in quick-release pin (1) includes a pin rod (5), a steel ball (6), a pin shaft (7), a spring (8), and a pin cap (11). The pin rod (5) has a cavity structure with an annular groove (5a) in its middle. The steel ball (6) is located in the annular groove (5a). The pin shaft (7) is inserted into the pin rod (5) to push the steel ball (6) out to the outer surface of the pin rod (5), thus limiting the quick-release pin. A spring (8) is provided between the pin rod (5) and the pin cap (11). The spring (8) is sleeved on the pin rod (5), so that the pin rod (5) moves axially under the action of external force to push the steel ball (6) out. 6) Push into the annular groove (5a) to unlock the quick release pin; the ejector handle locking device (3) includes an ejector handle (12), a push rod (13) and a base (15). The ejector handle (12) is provided with a groove (12a) that cooperates with the push rod (13). The base (15) is provided with a through groove (15a) for the movement of the push rod (13). After the secondary plug-in quick release pin (1) is inserted into the base (15), the push rod (13) enters the groove (12a) to lock the ejector handle (12). Pull out the secondary plug-in quick release pin (1) to unlock.

2. The electromechanical integrated ejection seat forced safety device as described in claim 1, characterized in that: The safety device also includes a power switch (2), which is a cam rotary switch located at the end of the pin (7) and fixedly connected to the ejector handle locking device (3). When the pin (5) moves along the pin (7), the power switch (2) is switched on and off.

3. The electromechanical integrated ejection seat forced safety device as described in claim 2, characterized in that: The two-stage plug-in quick release pin (1) also includes a handle (9) with internal threads, which is threaded to a pin (5) with external threads to provide movement space for the spring (8), pin (7) and pin cap (11).

4. The electromechanical integrated ejection seat forced safety device as described in claim 3, characterized in that: One end of the pin (7) is threaded and threaded to the pin cap (11). When the pin cap (11) is pressed, the pin rod (5) moves and the steel ball (6) enters the annular groove of the pin rod. The steel ball does not protrude from the outer circle of the pin rod (5) so as to achieve quick release pin unlocking.

5. The electromechanical integrated ejection seat forced safety device as described in claim 1, characterized in that: The base (15) is threaded to the positioning nut (16) to restrict the removal of the two-stage plug-in quick release pin (1).

6. The electromechanical integrated ejection seat forced safety device as described in claim 1, characterized in that: The ejection handle locking device (3) also includes a positioning pin (14) for limiting the push rod (13) to prevent the push rod (13) from falling off.

7. The electromechanical integrated ejection seat forced safety device as described in claim 1, characterized in that: The ejection handle locking device (3) also includes a positioning nut (16), which is connected to the base (15) by threads to restrict the pull-out of the secondary plug-in quick release pin (1).

8. The electromechanical integrated ejection seat forced safety device as described in claim 1, characterized in that: The power switch (2) and the ejection handle locking device (3) are connected by screws.

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