Ground lock device of aviation aircraft sliding door

Abstract

The utility model discloses a ground lock device of an aviation aircraft sliding door. The ground lock device comprises a shell, two lock pin pushing assemblies and a rear end cover. The two sets of lock pin pushing assemblies are arranged up and down, and are pressed in the mounting cavity of the shell by the rear end cover; the lock pin pushing assembly comprises a lock pin pushing rod and a guide piece, the front portion of the lock pin pushing rod can be axially and elastically installed on the rear portion of the lock pin pushing rod in a telescopic mode, the thin neck portion of the front portion of the lock pin pushing rod penetrates through the guide piece and can vertically slide along a sliding groove in the guide piece, expansion holes are formed in the two ends of the sliding groove, and when the lock pin pushing rod slides to the expansion holes, the front portion of the lock pin pushing rod elastically stretches. When the lock pin push rod is inserted into the rear end cover, the thicker shoulder part behind the neck part enters the expansion hole, so that the position of the lock pin push rod is locked, the head part of the lock pin push rod penetrates into the concave cavity in the front surface of the shell, the rear end of the lock pin push rod penetrates out of the rear end cover, and the penetrating length of the lock pin push rod on the rear end cover is longer. The sliding door ground lock device not only can completely meet the requirement for the sliding door ground lock device, but also is easy to manufacture and machine, firm and durable in structure and convenient to maintain.

Description

Technical Field

[0001] The utility model relates to a floor lock device for a sliding door of an aircraft. Background Art

[0002] The floor lock device of the sliding door of a civil aircraft is installed inside the door body of the sliding door, and is mainly used to ensure that when the sliding door of the aircraft docks, the locking pin of the door body extends out and is inserted into the lock hole, so as to realize the firm locking of the sliding door. The utility model aims to provide a floor lock device with a novel structure that meets the above requirements. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a floor lock device for a sliding door of an aircraft with a novel structure, which is easy to manufacture and process, has a firm and durable structure, and is convenient for maintenance and repair.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is as follows: a floor lock device for a sliding door of an aircraft, comprising a housing, two sets of locking pin pushing components and a rear end cover;

[0005] The two sets of locking pin pushing components are arranged up and down, and are press-fitted into the installation cavity of the housing by the rear end cover;

[0006] Each locking pin pushing component includes a locking pin push rod and a guiding piece. The front part of the locking pin push rod is axially elastically telescopic and installed on the rear part thereof. The thinner neck part at the front passes through the guiding piece and can slide up and down along the sliding groove on the guiding piece. The two ends of the sliding groove are enlarged holes. When sliding to the enlarged holes, the front part of the locking pin push rod elastically elongates, and the thicker shoulder part behind the neck enters the enlarged holes, so as to lock the position of the locking pin push rod. The head of the locking pin push rod penetrates out into the concave cavity on the front side of the housing, so that people can operate and press to unlock the locking pin push rod. The rear end of the locking pin push rod penetrates out of the rear end cover. The locking pin push rod on the upper side has a longer penetration length and is a long locking pin push rod, and the corresponding locking pin push rod on the lower side is a short locking pin push rod.

[0007] When the floor lock device of the utility model is installed on the side of the door panel, the long and short locking pin push rods are respectively connected to the long and short locking pins that can slide vertically in the door panel. Press and unlock the long and short locking pin push rods and then slide down, the long and short locking pins can be driven to extend out and be inserted into the lock holes below the door panel. After sliding in place and releasing the locking pin push rod, the position of the locking pin push rod is automatically locked, realizing the firm locking of the sliding door. It can be seen that the utility model can fully meet the requirements for the floor lock device of the sliding door. Moreover, the floor lock device also has the advantages of simple structure, easy manufacturing and processing, firm and durable structure, and convenient maintenance and repair.

[0008] As a preferred embodiment of the present utility model: a sliding piece is provided at the front end of the rear part of the locking pin push rod, and a color block for marking the locking state is provided on the sliding piece. When the locking pin push rod slides up and down, the sliding piece thereon slides synchronously in the gap between the guiding piece and the rear end cover. And when the locking pin push rod slides down to the position of the enlarged hole, the color block on the sliding piece is exposed in the window on the front surface of the housing. The locking pin push rod realizes the support during sliding through the rod body and the sliding piece thereon, which can enhance the smoothness of sliding.

[0009] Preferably: a gap for the movement of the sliding piece is formed between the rear end cover and the guiding piece by adding a gasket.

[0010] Preferably: a protective cover is further provided behind the push rod head of the locking pin push rod, and the width of the protective cover is adapted to the concave cavity.

[0011] Preferably: the rear end cover includes a guiding block, a spring piece and a pressing block. The spring piece is in an H shape, and both ends are raised by pillow feet, so as to form an arched cavity in the middle. The guiding block is also in an H shape and is embedded in the arched cavity. The pressing block is located on the back of the pillow feet at both ends of the spring piece. The bolt passes through it, sleeves the gasket, and then passes through the end of the guiding piece to connect it with the housing. The rear end cover with this structure can adjust the pressure between it and the sliding piece on the locking pin push rod, so as to adjust the sliding resistance of the sliding piece and ensure the smoothness of sliding.

[0012] As a preferred embodiment, the rear end of the front part of the locking pin push rod is inserted into the sleeve at the front end of the rear part of the locking pin push rod against the spring, and the two are connected in an axially elastically telescopic manner through the pin inserted into the sliding groove on the side wall of the sleeve.

[0013] Beneficial effects:

[0014] The present utility model can not only fully meet the requirements for the ground lock device of the sliding door, but also is easy to manufacture and process, has a strong and durable structure, and is convenient for maintenance and repair. Description of the drawings

[0015] Figure 1 is the front view of the housing of the ground lock device of the preferred embodiment of the present utility model;

[0016] Figure 2 is the side view of the housing of the ground lock device of the preferred embodiment of the present utility model;

[0017] Figure 3 is the schematic diagram of the assembly relationship between the guiding piece and the locking pin push rod of the ground lock device of the preferred embodiment of the present utility model;

[0018] Figure 4 is the schematic diagram of the use state of the ground lock device of the preferred embodiment of the present utility model;

[0019] Figure 5 is a schematic structural view of the lock pin push rod of the ground lock device according to the preferred embodiment of the present utility model;

[0020] Figure 6 is a schematic view of the assembly relationship of the guide plate, the lock pin push rod and the rear end cover of the ground lock device according to the preferred embodiment of the present utility model;

[0021] Figure 7 is a schematic view of the composition structure of the rear end cover of the ground lock device according to the preferred embodiment of the present utility model. Detailed implementation manners

[0022] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1 , 2 are respectively the front view and the side view of the housing of the ground lock device of this embodiment. The housing 1 includes a panel 11, two side plates 12 provided on the left and right sides of the back of the panel 11, and two end plates at the upper and lower ends. The height of the end plates is lower than that of the side plates 12, and they enclose an installation cavity on the back of the panel 11. As Figure 1 shown, two long strip-shaped concave cavities 111 are distributed up and down on the front of the panel 11, and a window 112 is opened on the panel 11 below each concave cavity 111 for displaying the locking state identifier.

[0024] The ground lock device of this embodiment further includes a lock pin push rod 2, a guide plate 3 and a rear end cover 4. The lock pin push rod 2 and the guide plate 3 constitute a lock pin pushing assembly. As Figure 3 shown, this embodiment includes two sets of lock pin pushing assemblies, which are distributed up and down. The lock pin push rod 2 of the upper lock pin pushing assembly is longer, and they are respectively used to push Figure 4 the long and short lock pins 8, 7 in

[0025] As Figure 5 shown, the rear end of the front part of the lock pin push rod 2 abuts against the spring 5 and is inserted into the sleeve at the front end of the rear part of the lock pin push rod 2, and the two are axially elastically telescopicly connected by inserting a pin 21 thereon into the chute 22 on the side wall of the sleeve. As Figure 3 shown, the thinner neck of the front part of the lock pin push rod 2 passes through the guide plate 3 and can slide up and down along the chute 31 on the guide plate 3. Both ends of the chute 31 are enlarged holes 32. When sliding to the enlarged holes 32, if the external pressure is released, the front part of the lock pin push rod 2 will be jacked up under the action of the spring 5. In this way, the thicker shoulder behind the neck of the lock pin push rod 2 will enter the enlarged holes 32, thereby locking the position of the lock pin push rod 2. Applying pressure to make the thicker shoulder retreat from the position of the enlarged holes 32 can unlock the lock pin push rod 2 again, so that it can slide up and down along the chute 31 on the guide plate 3 again.

[0026] The head at the front of the two lock pin push rods 2 penetrates into the inner side of the cavity 111 at the corresponding position on the front of the panel 11, including the push rod head 23 and the rear protective cover 24. The structure of the cavity 111 can reduce the possibility of the lock pin push rod 2 being accidentally pressed. The protective cover 24 is used to prevent the human hand from being pinched or scratched during the process of pressing the push rod head 23 and sliding the lock pin push rod 2. Its width is adapted to the width of the cavity 111 and cooperates with the cavity 111 to limit the swing deviation of the lock pin push rod 2. Figure 1 The 113 in it is a notch opened on the bottom surface of the cavity 111 for cooperating with the movement of the lock pin push rod 2.

[0027] As Figure 3 As shown, a sliding piece 25 is provided at the front end of the rear part of the lock pin push rod 2. It is located on the back of the guiding piece 3 and has a green color patch on it. After the lock pin push rod 2 slides into place from top to bottom (moves from the upper enlarged hole 32 to the lower enlarged hole 32), the color patch just shows through the opening 33 on the guiding piece 3 and appears in the window 112 of the panel 11. 6 is a gasket, which is used to pad out a gap on the back of the guiding piece 3 during assembly to allow the sliding piece 25 to move therein.

[0028] As Figure 6 As shown, the upper and lower guiding pieces 3 are pressed into the installation cavity on the back of the panel 11 by the rear end cover 4. Specifically, an upper bolt (not shown) passes through the upper end of the rear end cover 4, the upper gasket 6, the upper end of the upper guiding piece 3 (the opening structure is not shown), and is connected to the threaded blind hole (not shown) on the back of the panel 11, thereby pressing the upper guiding piece 3 onto the upper end plate on the back of the panel 11. The gasket 6 forms a gap between the rear end cover 4 and the upper guiding piece 3. When the long lock pin push rod 2 (i.e., the upper lock pin push rod) moves, the sliding piece 35 on it moves in this gap; a lower bolt (not shown) passes through the lower end of the rear end cover, the lower gasket 6, the lower end of the lower guiding piece 3 (the opening structure is not shown), and is connected to the threaded blind hole (not shown) on the back of the panel 11, thereby pressing the lower guiding piece 3 onto the lower end plate on the back of the panel 11. Here, the gasket 6 is also used to form a gap between the rear end cover 4 and the lower guiding piece 3, so that when the short lock pin push rod (i.e., the lower lock pin push rod) moves, the sliding piece 35 on it can move in this gap. The rear ends of the long and short lock pin push rods 2 respectively pass through the rear end cover 4.

[0029] Figure 7 It is a schematic diagram of the structural composition of the rear end cover. As shown, it includes a guiding block 41, a spring piece 42, and a pressing block 43. The spring piece 42 is in an H shape, and both ends are elevated by the pillow feet 421 respectively, thereby forming an arched cavity in the middle. The guiding block 41 is also in an H shape and is embedded in this arched cavity. The pressing block 43 is located on the back of the pillow feet 421 at both ends of the spring piece 42, and a bolt (not shown) passes through it to realize the installation and fixation of the rear end cover 4. The rear end cover 4 with this structure can adjust the pressure between it and the sliding piece 25 on the lock pin push rod 2, thereby adjusting the sliding resistance of the sliding piece 25 and ensuring the smoothness of the sliding.

[0030] As Figure 4 shown, when the floor lock device a of this embodiment is in use, it is installed on the side of the door panel, with the front of the panel 11 facing outward. The rear ends of the long and short lock pin push rods 2 are respectively inserted into the upper and short lock pins 8 and 7 that are slidably installed inside the door panel. Press down to unlock and push the lock pin push rod 2 downward, and the upper and short lock pins 8 and 7 follow and move downward and insert into the lock holes on the floor below the door panel. After locking in place, the green locking status indicator can be viewed through the window 112 on the front of the panel 11. At this time, if the pressure on the lock pin push rod 2 is released, the push rod 2 automatically rebounds and locks with the guide piece 3, thereby realizing the firm locking of the sliding door.

Claims

1. A floor lock device for a push-pull door of an aircraft, characterized in that, It includes a housing, two sets of lock pin pushing components, and a rear end cover; The two sets of the lock pin pushing components are arranged vertically and are press-fitted into the installation cavity of the housing by the rear end cover; The lock pin pushing component includes a lock pin push rod and a guide piece. The front part of the lock pin push rod is axially elastically telescopic and installed at its rear part. The thinner neck at the front part passes through the guide piece and can slide up and down along the sliding groove on the guide piece. The two ends of the sliding groove are enlarged holes. When sliding to the enlarged holes, the front part of the lock pin push rod elastically elongates, and the thicker shoulder behind the neck enters the enlarged holes, so as to lock the position of the lock pin push rod. The head of the lock pin push rod penetrates into the concave cavity on the front of the housing, so that people can operate and press to unlock the lock pin push rod. The rear end of the lock pin push rod penetrates through the rear end cover. The lock pin push rod on the upper side has a longer penetration length and is the long lock pin push rod, and the corresponding lock pin push rod on the lower side is the short lock pin push rod.

2. The ground lock device according to claim 1, characterized in that, A sliding piece is provided at the front end of the rear part of the lock pin push rod, and a color block for marking the locking state is provided on the sliding piece. When the lock pin push rod slides up and down, the sliding piece on it slides synchronously in the gap between the guide piece and the rear end cover, and when the lock pin push rod slides down to the position of the enlarged hole, the color block on the sliding piece is exposed in the window on the front of the housing.

3. The ground lock device according to claim 2, wherein, A gap for the sliding piece to move is formed between the rear end cover and the guide piece by adding a gasket.

4. The ground lock device according to claim 3, characterized in that, The rear end cover includes a guide block, a spring piece, and a pressing block. The spring piece is in an H shape, and both ends are padded by pillow feet, so as to form an arched cavity in the middle. The guide block is also in an H shape and is embedded in the arched cavity. The pressing block is located on the back of the pillow feet at both ends of the spring piece. A bolt passes through it, sleeves the gasket, and then passes through the end of the guide piece to connect it with the housing.

5. The ground lock device according to claim 1, characterized in that, A protective cover is further provided behind the push rod head of the lock pin push rod, and the width of the protective cover is adapted to the concave cavity.

6. The ground lock device according to claim 1, characterized in that, The rear end of the front part of the lock pin push rod is inserted into the sleeve at the front end of the rear part of the lock pin push rod against the spring, and the two are axially elastically telescopicly connected by inserting a pin into the sliding groove on the side wall of the sleeve.

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