An aviation short-stroke quick-release locking mechanism

Abstract

The present application relates to the technical field of aviation equipment and discloses an aviation short-stroke quick-release locking mechanism, comprising a base, a hook assembly, and a locking mechanism. The hook assembly comprises a hook seat and a hook, the hook being fixedly connected below the hook seat. A socket is fixedly connected to the base, the socket being provided with an upwardly open chamber through which the hook can enter and exit. The locking mechanism comprises a locking rod, a shift lever, and a driving portion for driving the locking rod to reset. The locking rod comprises a rod body and a locking shaft fixedly connected thereto. Coaxial axial holes are provided on opposite side walls of the socket, the locking shaft is adapted to fit the hook, and the locking shaft passes through the axial hole. The shift lever is located directly below the rod body and is rotatably connected to the base. When the shift lever is rotated, the shift lever can be linked to drive the rod body to rotate about the locking shaft to achieve the separation of the locking shaft from the hook. The present application facilitates the locking and quick unlocking of thin plate structures in confined spaces such as aviation partition doors and maintenance access covers, thereby reducing the travel required for unlocking.

Description

Technical Field

[0001] The present application relates to the technical field of aviation equipment, and in particular to an aviation short-stroke quick-release locking mechanism. Background Art

[0002] Aviation short-stroke quick-release locking mechanisms are often used for effective limiting and locking of partition doors, maintenance covers, etc. Existing door locks are large in size, and the panels required for installation are thick, making them inconvenient to install on thin panels. In addition, existing door locks require a long stroke to unlock, making them inconvenient to install and use in locations with small operating spaces and short stroke requirements. Summary of the Invention

[0003] In order to facilitate the locking and quick unlocking of thin plate structures in limited spaces such as aviation partition doors and maintenance covers, and to reduce the stroke required for unlocking, the present application provides an aviation short-stroke quick-release locking mechanism.

[0004] The above-mentioned application objectives of this application are achieved through the following technical solutions:

[0005] An aviation short-stroke quick-release locking mechanism comprises a base, a hook assembly and a locking mechanism; the hook assembly comprises a hook seat and a hook, and the hook is fixedly connected to the bottom of the hook seat; the base is fixedly connected to a socket, and the socket is provided with a cavity opening upward, and the hook can enter and exit the cavity; the locking mechanism comprises a locking rod, a shift rod and a driving part for driving the locking rod to reset, the locking rod comprises a rod body and a locking shaft fixedly connected thereto, and the opposite side walls of the socket are provided with coaxial axial holes, the locking shaft is adapted to the hook, and the locking shaft passes through the axial hole, the shift rod is located directly below the rod body, and the shift rod is rotatably connected to the base. If the shift rod is rotated, the shift rod can be linked to push the rod body to rotate with the locking shaft as the axis to achieve the disengagement of the locking shaft from the hook.

[0006] By adopting the above technical solution, the locking shaft on the locking rod can rotate in the axial hole of the socket. 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; in the process of inserting the hook assembly 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, a small stroke thrust can be used to drive the lever to rotate, and the lever synchronously drives the lever body to overcome the reset force of the driving part to rotate, and the rod body drives the locking shaft to rotate, and finally the locking shaft and the hook are disengaged, thereby realizing the unlocking of the locking mechanism.

[0007] Preferably, the driving part includes a torsion spring, a 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, the other end of the torsion spring is provided with an L-shaped hook, and the socket is provided with a limiting groove adapted to the L-shaped hook.

[0008] By adopting the above technical solution, the locking shaft can keep the rod body in a horizontal reset state under the action of the torsion spring, ensuring that the locking rod can automatically reset after the locking mechanism performs the locking operation, thereby realizing the automation of the locking work.

[0009] Preferably, the hook includes a hook body extending downward from the bottom surface of the hook seat, and a slot is provided on the hook body facing the locking shaft.

[0010] By adopting the above technical solution, the locking mechanism can be locked by the cooperation between the locking shaft and the card slot, and the locking mechanism can be unlocked by the separation of the locking shaft and the card slot.

[0011] Preferably, the clamping slot includes an arc-shaped clamping portion, and an upwardly inclined limiting portion is provided at the upper end of the clamping portion.

[0012] By adopting the above technical solution, the arc-shaped clamping portion can be adapted and clamped with the locking shaft to ensure the smooth operation of the locking mechanism; an upwardly inclined limiting portion is provided at the upper end of the clamping portion, which can prevent the locking shaft from rotating too much during the unlocking process of the locking mechanism, and the locking shaft rotates into the clamping slot, making it impossible to unlock quickly and effectively.

[0013] Preferably, the clamping portion is a 1 / 4 arc.

[0014] By adopting the above technical solution, the clamping portion is a 1 / 4 arc, which can reduce the contact space between the locking shaft and the clamping portion, and when unlocking, can reduce the stroke required for unlocking.

[0015] Preferably, the unlocking groove is provided on the locking shaft, and the bottom surface of the unlocking groove is parallel to the axis of the locking shaft. If the rod body is in a horizontal reset state, the locking shaft is locked with the clamping part, and the bottom surface of the unlocking groove is inclined toward the clamping part.

[0016] By adopting the above technical solution, when the locking rod is in the reset state, the rod body and the base remain horizontal, and the bottom surface of the unlocking groove is inclined toward the clamping part. When the locking mechanism needs to be locked, when the hook is inserted into the cavity 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 overcomes the reset torque of the torsion spring and rotates. The rotation of the locking shaft makes the bottom surface of the unlocking groove more inclined, and the hook is pressed into the bottom of the cavity along the bottom surface of the unlocking groove. At this time, the clamping slot on the hook is opposite to the locking shaft and leaves 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 clamping slot, realizing rapid locking of the locking mechanism.

[0017] Preferably, the unlocking groove depth is greater than the locking shaft radius.

[0018] By adopting the above technical solution, 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 bottom end of the unlocking groove and the hook, thereby realizing the separation between the hook assembly and the locking shaft, and ensuring the smooth unlocking of the locking mechanism.

[0019] Preferably, an annular groove is provided at one end of the locking shaft away from the rod body, and a retaining spring is clamped on the annular groove.

[0020] By adopting the above technical solution, the retaining spring is clamped in the ring groove, which can ensure the smooth rotation of the locking shaft in the shaft hole, prevent the locking shaft from moving in the shaft hole, and ensure the stability of the locking mechanism.

[0021] Preferably, the shift rod is fixedly connected to a sleeve at one end away from the locking shaft, the axis of the sleeve is perpendicular to the length direction of the shift rod, the base is fixedly connected to a support seat, the support seat is provided with a through hole coaxial with the sleeve, a pin is passed through the sleeve and the through hole, a limiting ring groove is provided at one end of the pin, and a limiting retaining spring is clamped on the limiting ring groove.

[0022] By adopting the above technical solution, the pin shaft is passed through the sleeve and the through hole in sequence, and the limiting clamping spring is clamped in the limiting ring groove to ensure that the shift rod can rotate stably on the support seat to drive the rod body to unlock the locking mechanism.

[0023] Preferably, the base and the hook seat are respectively provided with mounting holes.

[0024] By adopting the above technical solution, screws can be inserted into the mounting holes of the base to fix the base to the fixed bracket; screws can be inserted into the mounting holes of the hook seat to fix the hook seat to the movable panel, ensuring the installation, maintenance and normal use of the locking mechanism.

[0025] In summary, the beneficial technical effects of this application are:

[0026] The present 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 to the bottom of the hook seat; the base is fixedly connected to a socket, and the socket is provided with a cavity opening upward, and the hook can enter and exit the cavity; the locking mechanism includes a locking rod, a shift rod and a driving part for driving the locking rod to reset, the locking rod includes a rod body and a locking shaft fixedly connected thereto, and coaxial axial holes are provided on the opposite side walls of the socket, and the locking shaft is adapted to the hook, and the locking shaft is passed through the axial hole, and the shift rod is located directly below the rod body, and the shift rod is rotatably connected to the base. If the shift rod rotates, the shift rod can be linked to push the rod body to rotate with the locking shaft as the axis to achieve the disengagement of the locking shaft from the hook.

[0027] The short-stroke quick-release locking mechanism of the present application can effectively limit and lock partition doors, maintenance covers, etc., and uses the dead point position to lock the quick-release locking mechanism. The locking state is reliable, and the operating stroke is amplified by the lever principle to achieve the short-stroke quick unlocking requirement of the locking mechanism. The quick-release locking mechanism is small in size, easy to install on thin plate structures, light in weight, highly reliable, easy to lock, and has a low failure rate, making it suitable for use in aviation products. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of this application;

[0029] Figure 2 It is the explosive photo of this application;

[0030] Figure 3 It is a schematic diagram of the hook component structure of this application;

[0031] Figure 4 is a schematic diagram of the locking lever structure of the present application;

[0032] Figure 5 It is a cross-sectional view of the locking mechanism of the present application when locked;

[0033] Figure 6 It is a cross-sectional view of the locking mechanism of the present application when unlocked;

[0034] Figure 7 This is a schematic diagram of the locking implementation of the locking mechanism of the present application;

[0035] Figure 8 This is a schematic diagram of the unlocking implementation of the locking mechanism of this application.

[0036] As shown in the figure, 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. hook; 221. hook body; 222. slot; 2221. clamping part; 2222. limiting part; 3. locking mechanism; 31. locking rod; 311. rod body; 312. locking shaft; 3121. unlocking groove; 3122. strip slot; 3123. ring groove; 3124. retaining spring; 32. lever; 321. shaft sleeve; 33. torsion spring; 331. L-shaped hook; 4. pin; 41. limiting ring groove; 42. limiting retaining spring; 5. mounting hole; 6. fixing bracket; 61. operating hole; 7. movable panel. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-8 This application is described in further detail.

[0038] like Figure 1 、 2As shown, 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, the hook 22 is fixedly connected to the bottom of the hook seat 21; the base 1 is fixedly connected to the socket 11, the socket 11 is provided with an upwardly open cavity 111, and the hook 22 can enter and exit the cavity 111; the locking mechanism 3 includes a locking rod 31, a lever 32 and a driving part for driving the locking rod 31 to reset, the locking rod 31 includes a rod body 311 and a locking shaft 312 fixedly connected thereto, The stop rod 31 and the locking shaft 312 are arranged perpendicular to each other, and coaxial shaft holes 112 are provided on the opposite side walls of the socket 11. The locking shaft 312 is adapted to the hook 22, and the locking shaft 312 passes through the shaft hole 112. The length direction of the rod body 311 is parallel to the length direction of the shift rod 32 and the shift rod 32 is located directly below the rod body 311. The shift rod 32 is rotatably connected to the base 1. If the shift rod 32 rotates, the shift rod 32 can be linked to push the rod body 311 to rotate around the locking shaft 312 as the axis to achieve the disengagement of the locking shaft 312 from the hook 22.

[0039] like Figure 2 、 4 As shown, the driving part includes a torsion spring 33, and a strip-shaped groove 3122 is provided at one end of the locking shaft 312 away from the rod body 311. One end of the torsion spring 33 is engaged with the strip-shaped groove 3122, and the other end of the torsion spring 33 is provided with an L-shaped hook 331. A limiting groove 113 adapted to the L-shaped hook 331 is provided on the outer wall of the socket 11.

[0040] like Figure 1 As shown, one end of the torsion spring 33 is clamped in the strip groove 3122 of the locking shaft 312, and the L-shaped hook 331 of the torsion spring 33 is clamped in the limit groove 113 on the socket 11. When the hook 22 is located in the cavity 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.

[0041] like Figure 5 , which is a cross-sectional view of the locking mechanism 3 when locked.

[0042] like Figure 3 As described above, the hook 22 includes a hook body 221 extending downward from the bottom surface of the hook seat 21 , and a slot 222 is defined on the side of the hook body 221 facing the locking shaft 312 .

[0043] The locking slot 222 includes an arc-shaped locking portion 2221 , and an upwardly inclined limiting portion 2222 is provided at an upper end of the locking portion 2221 .

[0044] like Figure 6As shown, the inclined limiting portion 2222 is provided to prevent the locking shaft 312 from entering from the upper part of the hook 22 after the rod body 311 rotates counterclockwise too much, making it impossible to unlock the locking mechanism.

[0045] like Figure 4 、 5 As shown, the unlocking groove 3121 is opened on the locking shaft 312, and the bottom surface of the unlocking groove 3121 is parallel to the axis of the locking shaft 312. If the rod body 311 is in a horizontal reset state, the locking shaft 312 is locked with the clamping part 2221 to restrict the hook 22 in the chamber 111. At this time, the bottom surface of the unlocking groove 3121 is inclined toward the clamping part 2221.

[0046] like Figure 3 As shown, specifically, the clamping portion 2221 of this embodiment is a 1 / 4 arc.

[0047] like Figure 4 As shown, the depth of the unlocking groove 3121 of this embodiment is greater than the radius of the locking shaft 312, so that when the rod body 311 is rotated, 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 be unlocked smoothly.

[0048] like Figure 6 As shown, 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 rod body 311 to rotate counterclockwise. When the rod body 311 is rotated to a certain angle, a gap is generated between the bottom low point 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, thereby realizing rapid unlocking of the locking mechanism 3.

[0049] like Figure 1 、 2 As shown, the locking shaft 312 is provided with an annular groove 3123 at one end away from the rod body 311, and the annular groove 3123 is clamped with a retaining spring 3124. By clamping the retaining spring 3124 with the annular groove 3123, the locking shaft 312 can be limited during the rotation process in the shaft hole 112, thereby preventing the locking shaft 312 from moving in the shaft hole 112.

[0050] like Figure 1 、 2As shown, in this embodiment, the end of the deflector lever 32 away from the locking shaft 312 is fixedly connected to a sleeve 321, with the axis of the sleeve 321 being perpendicular to the length of the deflector lever 32. The base 1 is fixedly connected to the support base 12, which has a through hole 121 coaxial with the sleeve 321. A pin 4 extends through the sleeve 321 and the through hole 121. A retaining ring groove 41 is provided at one end of the pin 4, which is engaged with a retaining spring 42. By connecting the pin 4 through the sleeve 321 and the through hole 121, and engaging the retaining spring 42 within the retaining ring groove 41 of the pin 4, the deflector lever 32 can be stably rotated on the support base 12.

[0051] like Figure 1 、 2 As shown, mounting holes 5 are respectively provided on the base 1 and the hook seat 21 .

[0052] like Figure 2 、 5 When the cam 311 is in the closed position, the spring 33 is in the closed position, and the spring 33 is in the open position, so that the cam 311 is in the closed position. When the locking slot 3121 is in the horizontal reset state of the rod body 311, the locking slot 3121 is tilted downward. When the hook 22 squeezes the bottom surface of the unlocking slot 3121 downward, it can drive the locking shaft 312 to overcome the torsion force of the torsion spring 33 and rotate clockwise. The hook 22 is then inserted into the bottom of the chamber 111. At this time, the locking shaft 312 located on the front side of the slot 222 rotates counterclockwise under the torsion force of the torsion spring 33, and the locking shaft 312 rotates into the clamping portion 2221, thereby realizing rapid locking of the locking mechanism 3.

[0053] like Figure 7 、 8 As shown, specifically, the base 1 is fixed to the fixed bracket 6 by screws passing through the mounting holes 5 of the base 1, and the hook assembly 2 is fixed to the movable plate 7 by screws passing through the mounting holes 5 of the hook assembly 2. The fixed bracket 6 has an operating hole 61 located directly below the lever 32 and near the pin 4. The provision of this operating hole 61 allows for a smaller operating space and quick unlocking. To unlock the locking mechanism 3, a screwdriver or other tool is used to push the lever 32 clockwise through the operating hole 61. The end of the lever 32 then pushes the rod body 311 counterclockwise. When the lever 32 rotates, a gap is created between the bottom of the unlocking slot 3121 and the opposite side wall of the hook 22. At this point, the hook assembly 2 can be withdrawn from the cavity 111 of the socket 11, unlocking the locking mechanism 3.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An aviation short-stroke quick-release locking mechanism, characterized in that: The invention comprises a base (1), a hook assembly (2) and a locking mechanism (3); the hook assembly (2) comprises a hook seat (21) and a hook (22), and the hook (22) is fixedly connected to the bottom of the hook seat (21); a socket (11) is fixedly connected to the base (1), and the socket (11) is provided with a cavity (111) opening upward, and the hook (22) can enter and exit the cavity (111); the locking mechanism (3) comprises a locking rod (31), a shift rod (32) and a driving part for driving the locking rod (31) to reset; the locking rod (31) comprises a rod body (311) ) and a locking shaft (312) fixedly connected thereto, the socket (11) is provided with coaxial shaft holes (112) on opposite side walls, the locking shaft (312) is passed through the shaft hole (112), the locking shaft (312) is adapted to the hook (22), the shift lever (32) is located directly below the rod body (311), the shift lever (32) is rotatably connected to the base (1), and when the shift lever (32) is rotated, the shift lever (32) can be linked to push the rod body (311) to rotate around the locking shaft (312) as the axis, so as to realize the separation of the locking shaft (312) and the hook (22); The driving part includes a torsion spring (33), one 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) is provided with an L-shaped hook (331), and the socket (11) is provided with a limiting slot (113) adapted to the L-shaped hook (331); The hook (22) comprises a hook body (221) extending downward from the bottom surface of the hook seat (21), and a slot (222) is provided on the hook body (221) facing the locking shaft (312); The clamping slot (222) comprises an arc-shaped clamping portion (2221), and an upwardly inclined limiting portion (2222) is provided at the upper end of the clamping portion (2221); The unlocking groove (3121) is provided on the locking shaft (312), and the bottom surface of the unlocking groove (3121) is parallel to the axis of the locking shaft (312). When the rod body (311) is in a horizontal reset state, the locking shaft (312) is locked with the clamping portion (2221), and the bottom surface of the unlocking groove (3121) is inclined toward the clamping portion (2221).

2. The aviation short-stroke quick-release locking mechanism according to claim 1, characterized in that: The clamping portion (2221) is a 1 / 4 arc.

3. The aviation short-stroke quick-release locking mechanism according to claim 1, characterized in that: The depth of the unlocking groove (3121) is greater than the radius of the locking shaft (312).

4. The aviation short-stroke quick-release locking mechanism according to claim 1, characterized in that: An annular groove (3123) is provided at one end of the locking shaft (312) away from the rod body (311), and a clamping spring (3124) is clamped on the annular groove (3123).

5. The aviation short-stroke quick-release locking mechanism according to claim 1, characterized in that: The shift rod (32) is fixedly connected to a sleeve (321) at one end away from the locking shaft (312), and the axis of the sleeve (321) is perpendicular to the length direction of the shift rod (32). The base (1) is fixedly connected to a support seat (12), and a through hole (121) coaxial with the sleeve (321) is provided on the support seat (12). A pin shaft (4) is passed through the sleeve (321) and the through hole (121), and a limiting ring groove (41) is provided at one end of the pin shaft (4), and a limiting retaining spring (42) is clamped on the limiting ring groove (41).

6. 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 mounting holes (5).

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