CN115898176A - Aviation short-stroke quick-release locking mechanism - Google Patents

Abstract

This application relates to the technical field of aviation equipment, and discloses an aviation short-stroke quick release locking mechanism, including a base, a hook assembly and a locking mechanism; the hook assembly includes a hook seat and a hook, and the hook is fixedly connected under the hook seat; the base The socket is fixedly connected to the socket, and the socket is provided with an upward opening chamber, and the hook can enter and exit the chamber; the locking mechanism includes a locking lever, a shift lever and a driving part for driving the locking lever to reset, and the locking lever includes a rod body And the locking shaft fixedly connected with it, the opposite side walls of the bearing socket are provided with coaxial shaft holes, the locking shaft is adapted to the hook, the locking shaft passes through the shaft hole, the lever is located directly below the lever body, and the lever is connected to the hook. The base is rotatably connected, and when the driving lever rotates, the driving lever can be linked to push the rod body to rotate with the locking shaft as the axis, so as to realize the detachment of the locking shaft from the hook. The application facilitates the realization of the locking and quick unlocking of the thin-plate structure in limited spaces such as aviation partition doors and maintenance hatches, and reduces the travel required for unlocking.

Description

An Aviation Short-stroke Quick Release Locking Mechanism

technical field

The present application relates to the technical field of aviation equipment, in particular to an aviation short-stroke quick release locking mechanism.

Background technique

Aviation short-stroke quick-release locking mechanism is often used to effectively limit and lock partition doors and maintenance covers. In addition, the existing door lock requires a large stroke when unlocking, which is inconvenient to install and use in a position where the operating space is small and there is a short stroke requirement.

Contents of the invention

In order to facilitate the locking and quick unlocking of thin plate structures in limited spaces such as aviation partition doors and maintenance hatches, and reduce the travel required for unlocking, this application provides an aviation short-stroke quick-release locking mechanism.

The above-mentioned application purpose of the application is achieved through the following technical solutions:

An aviation short-stroke quick-release locking mechanism, including a base, a hook assembly and a locking mechanism; the hook assembly includes a hook seat and a hook, and the hook is fixedly connected under the hook seat; the base is fixedly connected to a bearing The socket, the socket is provided with an upward opening chamber, and the hook can enter and exit the chamber; the locking mechanism includes a locking lever, a driving lever and a driving part for driving the locking lever to reset. The rod includes a rod body and a locking shaft fixedly connected to it. The opposite side walls of the socket are provided with coaxial shaft holes, the locking shaft is adapted to the hook, and the locking shaft passes through the shaft hole. The driving rod is located directly below the rod body, and the driving rod is connected to the base in rotation. When the driving rod rotates, the driving rod can be linked to push the rod body to rotate with the locking shaft as the axis to realize the locking shaft. Disengagement from the hook.

By adopting the above technical scheme, the locking shaft on the locking rod can rotate in the shaft hole of the socket, and under the action of the driving part, the locking rod is always in the reset device, and the rod body is parallel to the base at this time; When the hook assembly is inserted into the cavity of the socket, the locking shaft is engaged with the hook of the hook assembly to realize the locking of the locking mechanism; when unlocking is required, the lever can be driven to rotate with a small stroke thrust, and the lever is driven synchronously The rod body rotates against the reset force of the driving part, and the rod body drives the locking shaft to rotate, finally realizing the detachment of the locking shaft from the hook, and realizing the unlocking of the locking mechanism.

Preferably, the driving part includes a torsion spring, the locking shaft is provided with a slot at one end away from the rod body, one end of the torsion spring is engaged with the slot, and the other end of the torsion spring is provided with an L-shaped hook, so The socket is provided with a limiting groove adapted to the L-shaped hook.

By adopting the above technical scheme, under the action of the torsion spring, the locking shaft can keep the rod body in a horizontal reset state all the time, ensuring that the locking rod can be automatically reset after the locking mechanism performs the locking operation, realizing the automation of the locking work .

Preferably, the hook includes a hook body extending downward from the bottom of the hook seat, and the hook body is provided with a locking groove toward the side of the locking shaft.

By adopting the above technical solution, the locking of the locking mechanism can be realized through the cooperation of the locking shaft and the locking groove, and the unlocking of the locking mechanism can be realized through the separation of the locking shaft and the locking groove.

Preferably, the locking groove includes an arc-shaped locking portion, and an upwardly inclined limiting portion is provided at the upper end of the locking portion.

By adopting the above-mentioned technical solution, the arc-shaped clamping part can realize the adaptive clamping connection with the locking shaft to ensure the smooth progress of the locking mechanism; During the unlocking process of the locking mechanism, the rotation angle of the locking shaft is too large, and the locking shaft rotates into the card slot again, so that fast and effective unlocking cannot be performed.

Preferably, the clamping portion is a 1/4 arc.

By adopting the above technical solution, the clamping part is a 1/4 arc, which can reduce the contact space between the locking shaft and the clamping part, and when unlocking, the stroke required for unlocking can be reduced.

Preferably, for the unlocking groove provided on the locking shaft, the bottom surface of the unlocking groove is parallel to the axis of the locking shaft. The bottom of the unlocking groove is inclined towards the locking part.

By adopting the above-mentioned technical solution, when the locking lever is in the reset state, the lever body and the base are kept horizontal, and the bottom of the unlocking groove is inclined towards the clamping part. When the locking mechanism needs to be locked, when the hook is inserted into the chamber of the socket , the bottom end of the hook will squeeze the bottom surface of the unlocking groove. Since the hook eccentrically squeezes the locking shaft, the locking shaft will rotate against the reset torque of the torsion spring. The rotation of the locking shaft will make the bottom surface of the unlocking groove more inclined, and the hook will follow the trend The bottom of the unlocking groove is pressed into the bottom of the chamber. At this time, the locking groove on the hook is opposite to the locking shaft and there is a gap. The locking shaft rotates in the opposite direction under the reset torque of the torsion spring, and finally the locking shaft rotates into the locking groove. , to achieve fast locking of the locking mechanism.

Preferably, the depth of the unlocking groove is greater than the radius of the locking shaft.

By adopting the above technical scheme, the depth of the unlocking groove is greater than the radius of the locking shaft, which can ensure that during the rotation of the locking shaft, a gap can be generated between the end of the bottom surface of the unlocking groove and the hook, so as to realize the separation between the hook assembly and the locking shaft, ensuring The unlocking of the locking mechanism proceeds smoothly.

Preferably, an annular groove is provided at the end of the locking shaft away from the rod body, and a snap spring is snapped into the annular groove.

By adopting the above-mentioned technical scheme, the snap ring is clamped in the ring groove, which can ensure the smoothness of the rotation of the locking shaft in the shaft hole, avoid the movement of the locking shaft in the shaft hole, and ensure the stability of the locking mechanism.

Preferably, the end of the driving rod away from the locking shaft is fixedly connected to the shaft sleeve, the axis of the shaft sleeve is perpendicular to the length direction of the driving rod, and the support seat is fixedly connected to the base, and the support seat is provided with a A through hole coaxial with the sleeve, a pin shaft is pierced through the shaft sleeve and the through hole, and a limit ring groove is provided at one end of the pin shaft, and a limit ring spring is clamped on the limit ring groove.

By adopting the above-mentioned technical scheme, the pin shaft passes through the shaft sleeve and the through hole in turn, and the limit circlip is snapped into the limit ring groove to ensure that the driving lever can rotate stably on the support seat, and the drive lever body is used for locking Body unlocking.

Preferably, mounting holes are respectively provided on the base and the hook seat.

By adopting the above technical scheme, screws can be drilled in the mounting holes of the base, and the base can be fixed on the fixed bracket; screws can be drilled in the mounting holes of the hook seat, and the hook seat can be fixed on the movable plate to ensure Installation, maintenance and normal use of the locking mechanism.

In summary, the beneficial technical effects of the present application are:

The application is provided with a base, a hook assembly and a locking mechanism; the hook assembly includes a hook seat and a hook, and the hook is fixedly connected below the hook seat; In and out of the chamber; the locking mechanism includes a locking lever, a driving lever and a driving part for driving the locking lever to reset. The locking lever includes a lever body and a locking shaft fixedly connected to it. The shaft hole of the shaft, the locking shaft is adapted to the hook, the locking shaft passes through the shaft hole, the driving rod is located directly below the rod body, and the driving rod is connected to the base in rotation. When the driving rod rotates, the driving rod can The interlocking push rod body rotates with the locking shaft as the axis, so as to realize the detachment of the locking shaft from the hook.

The short-stroke quick-release locking mechanism of this application can effectively limit and lock partition doors, maintenance hatches, etc., and use the dead point position to lock the quick-release locking mechanism. The locking state is reliable, and the operating stroke is enlarged through the principle of leverage , to realize the fast unlocking requirement of the locking mechanism with a short stroke, the quick release locking mechanism is small in size, easy to install on the thin plate structure, light in weight, high in reliability, convenient in locking, and low in failure rate, suitable for use in aviation products.

Description of drawings

Fig. 1 is the structural representation of the present application;

Fig. 2 is an explosion photo of the present application;

Fig. 3 is the schematic diagram of the hook assembly structure of the present application;

Fig. 4 is the schematic diagram of the locking lever structure of the present application;

Fig. 5 is a sectional view when the locking mechanism of the present application is locked;

Fig. 6 is a sectional view when the locking mechanism of the present application is unlocked;

Fig. 7 is a schematic diagram of the locking implementation of the locking mechanism of the present application;

Fig. 8 is a schematic diagram of unlocking implementation of the locking mechanism of the present application.

1. Base; 11. Socket; 111. Chamber; 112. Shaft hole; 113. Limiting groove; 12. Support seat; 121. Through hole; 2. Hook assembly; 21. Hook seat; 22 , the hook; 221, the hook body; 222, the slot; 2221, the clamping part; 2222, the limit part; 3, the locking mechanism; 31, the locking rod; 311, the rod body; 312, the locking shaft; Unlocking groove; 3122, strip card groove; 3123, ring groove; 3124, snap spring; 32, shift lever; 321, bushing; 33, torsion spring; 331, L-shaped hook; 4, pin shaft; Bit ring groove; 42, limit jumper; 5, mounting hole; 6, fixed bracket; 61, operation hole; 7, movable plate.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-8.

As shown in Figures 1 and 2, an aviation short-stroke quick release locking mechanism includes a base 1, a hook assembly 2 and a locking mechanism 3; the hook assembly 2 includes a hook seat 21 and a hook 22, and the hook 22 is fixedly connected to the hook Below the seat 21; the socket socket 11 is fixedly connected on the base 1, the socket socket 11 is provided with an upward opening chamber 111, and the hook 22 can enter and exit the chamber 111; the locking mechanism 3 includes a locking lever 31, a driving lever 32 and a The driving part that drives the locking rod 31 to reset. The locking rod 31 includes a rod body 311 and a locking shaft 312 fixedly connected thereto. The locking rod 31 and the locking shaft 312 are arranged perpendicular to each other. The coaxial shaft hole 112, the locking shaft 312 is adapted to the hook 22, the locking shaft 312 penetrates the shaft hole 112, the length direction of the rod body 311 is parallel to the length direction of the driving rod 32 and the driving rod 32 is located on the rod body 311 Directly below, the lever 32 is rotationally connected with the base 1. When the lever 32 rotates, the lever 32 can be linked to push the lever body 311 to rotate around the locking shaft 312 to realize the detachment of the locking shaft 312 from the hook 22. .

As shown in Figures 2 and 4, the driving part includes a torsion spring 33. The end of the locking shaft 312 away from the rod body 311 is provided with a strip-shaped slot 3122. One end of the torsion spring 33 is engaged with the strip-shaped slot 3122. The other end of the torsion spring 33 An L-shaped hook 331 is provided, and a limiting groove 113 adapted to the L-shaped hook 331 is provided on the outer wall of the socket 11 .

As shown in Figure 1, one end of the torsion spring 33 is stuck in the strip-shaped slot 3122 of the locking shaft 312, and the L-shaped hook 331 of the torsion spring 33 is stuck in the limit groove 113 on the socket 11, when the hook 22 When located in the chamber 111 of the socket 11 , under the action of the torsion spring 33 , the rod body 311 of the locking rod 31 is in a horizontal reset state, and at this time the locking shaft 312 is snap-connected with the hook 22 .

As shown in FIG. 5 , it is a cross-sectional view of the locking mechanism 3 when it is locked.

As shown in FIG. 3 , the hook 22 includes a hook body 221 extending downward from the bottom of the hook base 21 , and the hook body 221 defines a locking groove 222 toward the side of the locking shaft 312 .

The engaging slot 222 includes an arc-shaped engaging portion 2221 , and an upwardly inclined limiting portion 2222 is provided on the upper end of the engaging portion 2221 .

As shown in FIG. 6 , since the inclined limiting portion 2222 is provided, it can prevent the locking shaft 312 from entering from the upper part of the hook 22 after the rod body 311 rotates too large counterclockwise, and the locking mechanism cannot be unlocked.

As shown in Figures 4 and 5, the unlocking groove 3121 provided on the locking shaft 312, the bottom surface of the unlocking groove 3121 is parallel to the axis of the locking shaft 312. 2221 is buckled to restrict the hook 22 in the chamber 111 , and at this time, the bottom of the unlocking groove 3121 is inclined towards the direction of the engaging part 2221 .

As shown in FIG. 3 , specifically, the engaging portion 2221 of this embodiment is a 1/4 arc.

As shown in Figure 4, the depth of the unlocking groove 3121 in this embodiment is greater than the radius of the locking shaft 312, so that when the rod body 311 is turned, the bottom surface of the unlocking groove 3121 can form a gap with the side wall of the hook 22, ensuring that the locking mechanism 3 can Successfully unlocked.

As shown in Figure 6, when the locking mechanism 3 needs to be unlocked, the lever 32 can be pushed to rotate clockwise, and the end of the lever 32 is linked to push the lever body 311 to rotate counterclockwise. When the lever body 311 rotates to a certain angle, That is, there is a gap between the low point of the bottom surface of the unlocking groove 3121 and the side wall of the hook 22 . At this time, the hook assembly 2 can be separated from the locking shaft 312 in the chamber 111 to realize the quick unlocking of the locking mechanism 3 .

As shown in FIGS. 1 and 2 , an annular groove 3123 is provided at the end of the locking shaft 312 away from the rod body 311 , and a retaining spring 3124 is engaged with the annular groove 3123 . By engaging the snap spring 3124 with the ring groove 3123 , the position limit of the locking shaft 312 in the rotation process in the shaft hole 112 can be ensured, and the locking shaft 312 can be prevented from moving in the shaft hole 112 .

As shown in Figures 1 and 2, in this embodiment, the end of the lever 32 away from the locking shaft 312 is fixedly connected to the bushing 321, the axis of the bushing 321 is perpendicular to the length direction of the lever 32, and the support seat is fixedly connected to the base 1. 12. The support seat 12 is provided with a through hole 121 coaxial with the shaft sleeve 321, the shaft sleeve 321 and the through hole 121 are pierced with a pin shaft 4, and one end of the pin shaft 4 is provided with a limit ring groove 41, and the limit ring groove 41 is The limit snap spring 42 is clamped. By passing through the shaft sleeve 321 and connecting the pin shaft 4 through the through hole 121 , and snapping the limit ring 42 in the limit ring groove 41 of the pin shaft 4 , the shift lever 32 can be stably rotated on the support base 12 .

As shown in FIGS. 1 and 2 , mounting holes 5 are respectively provided on the base 1 and the hook seat 21 .

As shown in Figures 2 and 5, in a normal state, under the action of the torsion spring 33, the rod body 311 is placed in a horizontal reset state, and when the movable plate 7 needs to be closed, the movable plate 7 is moved to make the hook of the hook assembly 2 22 is inserted into the chamber 111. In order to facilitate the smooth insertion of the hook assembly 2 into the socket 11, a guide angle is provided around the bottom end of the hook 22. At this time, the edge of the side wall of the hook 22 close to the locking shaft 312 is located on the locking shaft 312. When the lower end of the hook 22 squeezes the bottom surface of the unlocking groove 3121, since the unlocking groove 3121 is inclined downward when the rod body 311 is in a horizontal reset state, the hook 22 can drive and lock when pressing the bottom surface of the unlocking groove 3121 downward. The shaft 312 overcomes the torsion force of the torsion spring 33 and rotates clockwise, and the hook 22 is then inserted into the bottom of the chamber 111. 312 is rotated counterclockwise, and the locking shaft 312 is rotated into the engaging portion 2221 , so as to realize fast locking of the locking mechanism 3 .

As shown in Figures 7 and 8, specifically, the base 1 is fixed on the fixing bracket 6 through the screws passing through the mounting holes 5 of the base 1, and the hook assembly 2 is fixed on the fixing bracket 6 through the screws passing through the mounting holes 5 of the hook assembly 2. On the movable plate 7; the fixed bracket 6 is located directly below the driving lever 32 and is provided with an operation hole 61 on the side near the pin shaft 4. The operation hole 61 is set here, and a small length of operation space can be used to realize quick unlocking. When it is necessary to unlock the locking mechanism 3, it is only necessary to use a screwdriver or other tools to push the lever 32 from the operating hole 61 to rotate clockwise, and the end of the lever 32 pushes the lever body 311 to rotate counterclockwise. When the lever 32 The rotation creates a gap between the low point of the bottom surface of the unlocking groove 3121 and the opposite side wall of the hook 22 , at this time, the hook assembly 2 can be pulled out from the chamber 111 of the socket 11 to realize the unlocking of the locking mechanism 3 .

The embodiments of this specific implementation mode are all preferred embodiments of the application, and are not intended to limit the scope of protection of the application. Therefore: all equivalent changes made according to the structure, shape, and principle of the application should be covered by the application. Within the protection scope of this application.

Claims (10)

1. An aviation short-stroke quick release locking mechanism, characterized in that it includes a base (1), a hook assembly (2) and a locking mechanism (3); the hook assembly (2) includes a hook seat (21) and a hook (22), the hook (22) is fixedly connected below the hook seat (21); the base (1) is fixedly connected to the socket (11), and the socket (11) is provided with an upward opening chamber (111), the hook (22) can enter and exit the chamber (111); the locking mechanism (3) includes a locking lever (31), a driving lever (32) and a locking lever (31) for driving ) reset driving part, the locking lever (31) includes a lever body (311) and a locking shaft (312) fixedly connected to it, and the opposite side walls of the socket (11) are provided with coaxial shaft holes (112), the locking shaft (312) is pierced with a shaft hole (112), the locking shaft (312) is adapted to the hook (22), and the driving rod (32) is located at the front of the rod body (311) Below, the driving lever (32) is rotationally connected with the base (1). If the driving lever (32) rotates, the driving lever (32) can be linked to push the rod body (311) to lock the shaft (312 ) to rotate as the axis to realize the disengagement of the locking shaft (312) from the hook (22). 2. The aviation short-stroke quick-release locking mechanism according to claim 1, characterized in that, the driving part includes a torsion spring (33), and the locking shaft (312) is provided with a Strip-shaped slot (3122), one end of the torsion spring (33) is engaged with the strip-shaped slot (3122), the other end of the torsion spring (33) is provided with an L-shaped hook (331), and the socket (11) is provided with a limiting groove (113) adapted to the L-shaped hook (331). 3. The aviation short-stroke quick-release locking mechanism according to claim 1, wherein the hook (22) comprises a hook body (221) extending downward from the bottom surface of the hook seat (21), and the hook body ( 221) Open a card slot (222) towards the side of the locking shaft (312). 4. The aviation short-stroke quick-release locking mechanism according to claim 3, characterized in that, the locking groove (222) includes an arc-shaped locking portion (2221), and the upper end of the locking portion (2221) An upwardly inclined limiting portion (2222) is provided. 5. The aviation short-stroke quick-release locking mechanism according to claim 4, characterized in that, the engaging portion (2221) is a 1/4 arc. 6. The aviation short-stroke quick release locking mechanism according to claim 4, characterized in that, the unlocking groove (3121) provided on the locking shaft (312), the bottom surface of the unlocking groove (3121) is in contact with the locking The axis of the shaft (312) is parallel. If the rod body (311) is in the horizontal reset state, the locking shaft (312) is engaged with the locking part (2221), and the bottom of the unlocking groove (3121) faces the locking The direction of the joint (2221) is inclined. 7. The aviation short-stroke quick release locking mechanism according to claim 6, characterized in that, the depth of the unlocking groove (3121) is greater than the radius of the locking shaft (312). 8. The aviation short-stroke quick-release locking mechanism according to claim 1, characterized in that, the end of the locking shaft (312) away from the rod body (311) is provided with an annular groove (3123), and the annular groove ( 3123) to clamp the snap ring (3124). 9. The aviation short-stroke quick-release locking mechanism according to claim 1, characterized in that, one end of the shift lever (32) away from the locking shaft (312) is fixedly connected to a shaft sleeve (321), and the shaft sleeve ( 321) is perpendicular to the length direction of the driving rod (32), the base (1) is fixedly connected to the support seat (12), and the support seat (12) is provided with a shaft sleeve (321) coaxial A through hole (121), the shaft sleeve (321) and the through hole (121) are pierced with a pin shaft (4), and one end of the pin shaft (4) is provided with a limit ring groove (41), and the limit ring The limit snap spring (42) is clipped on the slot (41). 10. The aviation short-stroke quick release locking mechanism according to claim 1, characterized in that, the base (1) and the hook seat (21) are respectively provided with installation holes (5).

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