CN217690849U

CN217690849U - Aircraft switch box

Info

Publication number: CN217690849U
Application number: CN202221174588.9U
Authority: CN
Inventors: 张恩华; 王宗辉; 范棋鑫; 王在宝; 秦源
Original assignee: Rainbow UAV Technology Co Ltd
Current assignee: Rainbow UAV Technology Co Ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-10-28
Anticipated expiration: 2032-05-10

Abstract

The utility model provides an aircraft switch box belongs to aircraft accessory technical field, include: a switch box body; one side of the flip cover plate is hinged with the other side of the switch box body and is provided with a locking pin; a locking assembly which is connected with the locking pin in a matched mode is arranged on the first side wall, opposite to the hinged part, of the switch box body, the locking assembly comprises a pair of locking sliding blocks which can move relatively, a pin inserting seam is arranged between the locking sliding blocks, when the locking sliding blocks move back to back or oppositely, the pin inserting seam is enlarged or reduced, and when the flip cover plate is closed, the locking pin penetrates through the pin inserting seam and is clamped on the locking sliding blocks; the unlocking assembly is arranged on the switch box body and is opposite to the locking assembly, the locking sliding block is unfolded by pressing the unlocking assembly, and the locking pin can be pulled out from the bolt seam and separated from the locking assembly. The technical scheme of the utility model beneficial effect lie in, make things convenient for the staff to carry out ground maintenance operation time, can accomplish the locking and the unblock action of switch box fast conveniently, and locking and unblock mode are reliable.

Description

Aircraft switch box

Technical Field

The utility model belongs to the technical field of the aircraft accessory, more specifically relates to an aircraft switch box.

Background

Along with the continuous development of aviation and aerospace technologies in China, the requirements on aviation equipment are higher and higher. An aircraft such as an airplane is provided with a switch box, and an electrical interface for maintenance is generally installed inside the switch box that can be opened and closed easily by a ground maintenance worker, and needs to be connected to an electrical interface of ground maintenance equipment when performing ground maintenance. Therefore, an aircraft switch box is needed, maintenance personnel can conveniently and quickly open a switch box cover, maintenance time is saved, the switch box is locked after ground maintenance operation is finished, and locking and unlocking modes are reliable.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a problem that exists among the purpose is to prior art provides an aircraft switch box, installs in aircraft outside surface, when carrying out ground maintenance operation, can accomplish the locking and the unblock action of switch box fast conveniently, and the reliability is high, is applicable to the aircraft.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

the utility model provides an aircraft switch box, include:

a switch box body;

one side of the flip cover plate is hinged to the switch box body, and the other side of the flip cover plate is provided with a locking pin;

a locking assembly which is connected with the locking pin in a matched mode is arranged on the first side wall, opposite to the hinged position, of the switch box body, the locking assembly comprises a pair of locking sliding blocks capable of moving relatively, a pin inserting seam is arranged between the pair of locking sliding blocks, when the pair of locking sliding blocks move back to back or oppositely, the pin inserting seam is enlarged or reduced, and when the flip cover plate is closed, the locking pin penetrates through the pin inserting seam and is clamped with the locking sliding blocks;

the unlocking assembly is arranged on the switch box body and is opposite to the locking assembly, the unlocking assembly is pressed to open the pair of locking sliding blocks, and the locking pin can be pulled out of the pin inserting slot and separated from the locking assembly.

Preferably, the locking assembly comprises:

the pair of first connecting plates are arranged in the cavity of the switch box body in parallel and are vertically connected with the first side wall;

and a pair of first springs, each of which has one end connected to one of the first connection plates and the other end connected to one of the locking sliders.

Preferably, the locking sliding blocks are square strip-shaped sliding blocks, the side faces, facing the unlocking assembly, of the locking sliding blocks are first inclined planes, and the first inclined planes of the two locking sliding blocks are arranged oppositely.

Preferably, the fitting pin includes first portion and second portion, the one end of first portion is connected flip apron, the other end of first portion is connected the second portion, the second portion with first portion forms the ladder face, the ladder face is used for the joint when locking state to be in the locking slider is kept away from unblock subassembly's side.

Preferably, the locking assembly further comprises a second connecting plate, two ends of the second connecting plate are vertically connected with the pair of first connecting plates, and a rebound assembly is arranged on the surface of the second connecting plate facing the locking sliding block;

the rebound assembly comprises a second spring and a backup plate connected with the second spring, and the backup plate is abutted against the second part in a locking state to compress the second spring;

when the lock is unlocked, the locking pin is separated from the locking slide block, and the backup plate ejects the locking pin out of the latch slot under the elastic action of the second spring.

Preferably, the switch box body includes the diapire and connect in four lateral walls of diapire, two relatively the top of lateral wall is equipped with respectively to the panel of the outside extension of switch box body, the unblock subassembly is located one on the panel, locking Assembly locates on the lateral wall of being connected with this panel, the unblock subassembly includes:

an unlock button;

the unlocking slide block is arranged in the cavity of the switch box body and connected with one end of the unlocking button, the unlocking slide block is a wedge-shaped slide block, and two second inclined planes matched with the first inclined planes of the locking slide blocks are arranged on the contact surfaces of the unlocking slide block and the pair of locking slide blocks.

Preferably, a third spring is arranged on the second connecting plate, the unlocking button is pressed, the unlocking sliding block is abutted to the third spring, the unlocking button is loosened, and the unlocking sliding block drives the unlocking button to rebound and reset under the elastic force action of the third spring.

Preferably, the first spring, the second spring and the third spring are respectively disposed in a guide post.

Preferably, a through hole matched with the unlocking button in shape is formed in the panel of the switch box body, the unlocking button is embedded in the through hole, and the surface of the unlocking button and the panel of the switch box body are located on the same plane.

Preferably, the first spring comprises a pair of springs arranged in parallel.

The technical scheme of the utility model beneficial effect lies in:

the utility model discloses a through pressing flip apron, insert the bolt seam between the locking slider on the flip apron on the lateral wall of switch box body with the fitting pin on the flip apron, the bolt seam enlarges or dwindles according to a pair of locking slider back of the body or when moving towards each other, is carried by the locking slider after the fitting pin inserts, accomplishes the locking action; through pressing the unblock button, the distance of the bolt seam between the unblock subassembly will be locked the slider is propped open, the fitting pin is extracted from the bolt seam and is broken away from with locking Assembly, accomplishes the action of unblock, when making things convenient for the staff to carry out ground maintenance operation to the airborne vehicle, only use mechanical system just can accomplish the locking and the unblock action of switch box fast conveniently, locking and unblock mode are reliable, and whole device is small, and occupation space is little, is applicable to the airborne vehicle.

Further, the utility model discloses the subassembly and the fitting pin butt of kick-backing when locking state of the subassembly that kick-backs that set up make the second spring of the subassembly that kick-backs compressed, and when the unblock state, the fitting pin pops out the fitting pin from the bolt seam under the spring action of second spring and breaks away from with the locking component to drive flip apron auto-eject, accomplish the unblock of switch box.

Furthermore, the unlocking button is embedded on the panel of the switch box body, the surface of the unlocking button and the panel of the switch box body are located on the same plane, the smoothness of the outer surface of the locked switch box and the outer surface of an aircraft is guaranteed, and the aerodynamic appearance of the aircraft is not affected.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings, wherein like reference numerals generally represent like parts throughout the exemplary embodiments.

Fig. 1 shows a schematic structural view of an aircraft switch box according to the invention;

fig. 2 shows an enlarged schematic view of a partial structure of an area a of an aircraft switch box according to the present invention;

fig. 3 is a schematic view illustrating a locking pin and tightening assembly of an aircraft switch box according to the present invention;

fig. 4 shows a schematic structural diagram of the mutually-matched tightening assembly and unlocking assembly of the aircraft switch box of the invention.

Description of the reference numerals:

1. a switch box body; 11. a first side wall; 12. a through hole; 13. a panel; 14. a bottom wall; 15. a side wall; 21. a flip cover plate; 22. a locking pin; 221. a first part; 222; a second section; 3. a locking assembly; 31. locking the sliding block; 311. a first inclined plane; 32. a first spring; 33. a second spring; 34. an unlock button; 341. unlocking the slide block; 342. a second inclined plane; 35. a third spring; 36. a backup plate; 37. inserting pin gaps; 38. a first connecting plate.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to fig. 1-2, the present invention provides an aircraft switch box comprising:

a switch box body 1;

the switch box comprises a flip cover plate 21, wherein one side of the flip cover plate 21 is hinged to the switch box body 1, and the other side of the flip cover plate 21 is provided with a locking pin 22;

a locking component 3 which is connected with the locking pin 22 in a matched mode is arranged on the first side wall 11, opposite to the hinged part, of the switch box body 1, the locking component 3 comprises a pair of locking slide blocks 31 capable of moving relatively, a pin slot 37 is arranged between the pair of locking slide blocks 31, when the pair of locking slide blocks 31 move back to back or move oppositely, the pin slot 37 is enlarged or reduced, and when the flip cover plate 21 is closed, the locking pin 22 penetrates through the pin slot 37 and is connected with the locking slide blocks 31 in a clamped mode;

the unlocking assembly is arranged on the switch box body 1 and is opposite to the locking assembly 3, the unlocking assembly is pressed to open the pair of locking sliding blocks 31, and the locking pin 22 can be pulled out from the bolt slot 37 and is separated from the locking assembly 3.

Specifically, the aircraft switch box can be installed on the outer surface of an aircraft such as an airplane, the first side wall 11 of the switch box body 1 of the aircraft switch box body is provided with a locking assembly 3, the locking assembly 3 comprises a pair of locking sliders 31 capable of moving relatively, a gap between the locking sliders 31 is a plug pin slot 37, and the plug pin slot 37 expands or contracts when moving back and forth or moving towards each other according to the locking sliders 31. The flip cover plate 21 is pressed, the locking pin 22 on the flip cover plate 21 is inserted into the plug pin slot 37 between the pair of locking sliders 31, the locking sliders 31 move back to enlarge the plug pin slot 37, so that the locking pin 22 can conveniently penetrate through the plug pin slot 37, when the locking pins 22 are clamped on the locking sliders 31, the plug pin slot 37 is reduced when the locking sliders 31 move in opposite directions, the locking pin 22 is clamped, and the locking action is completed to achieve the purpose of locking the switch box; by pressing the unlocking button 34, the unlocking assembly abuts against the pair of locking sliders 31, the locking sliders 31 move back to open the distance of the bolt slot 37, the locking pin 22 is pulled out from the bolt slot 37 and separated from the locking assembly 3, and the unlocking operation is completed. This aircraft switch box maintains the electric interface that uses etc. with ground and installs in the inside of switch box, when making things convenient for the staff to carry out ground maintenance operation to the aircraft, only uses mechanical system just can accomplish the locking and the unblock action of switch box fast conveniently, and locking and unblock mode are reliable, and whole device is small, and occupation space is little, simple to operate is applicable to the aircraft.

Optionally, the locking assembly 3 comprises:

a pair of first connecting plates 38, wherein the pair of first connecting plates 38 are arranged in parallel in the cavity of the switch box body 1 and are vertically connected with the first side wall 11;

a pair of first springs 32, each of the first springs 32 having one end connected to a first link plate 38 and the other end connected to a locking slider 31.

Specifically, the locking assembly 3 is fixedly mounted on the first side wall 11 in the cavity of the switch box body through a pair of first connecting plates 38 arranged in parallel, so that the locking assembly can be fixed with the switch box body 1, and the mounting position of the first connecting plates 38 can be correspondingly adjusted up and down according to the position of the locking pin 22 on the flip cover plate 21, so that the locking pin 22 is aligned to the plug pin seam 37 between the locking sliders 31, and the reliability of the locking and unlocking modes of the switch box is improved; and a first spring 32 is arranged between the locking slide block 31 and the first connecting plate 38, after the locking pin 22 is inserted into the pin slot 37, the first spring 32 is compressed, the compression elasticity of the first spring 32 becomes the clamping force of the locking slide block 31 to the locking pin 22, the locking pin 22 is clamped, and the locking of the switch box flip cover is completed. When unlocking is carried out, the locking slide block 31 is unfolded, and after the locking pin 22 is pulled out of the bolt slot 37, the first spring 32 is restored to reversely push the locking slide block 31 to move, so that the purpose of automatically resetting the locking slide block 31 is achieved.

Optionally, the locking slider 31 is a square strip slider, the side surface of the locking slider 31 facing the unlocking assembly is a first inclined surface 311, and the first inclined surfaces 311 of the two locking sliders 31 are arranged oppositely.

Specifically, the locking slider 31 is a square strip slider, the side of the locking slider 31 facing the unlocking component is opened to form a wedge-shaped inclined surface, that is, the first inclined surfaces 311 of the two locking sliders 31 are oppositely arranged, and the guiding function is achieved, so that the locking pin 22 can be smoothly inserted into the locking slider 31, and the acting force required for closing the flip cover plate 21 is reduced.

Alternatively, as shown in fig. 2-3, the locking pin 22 includes a first portion 221 and a second portion 222, one end of the first portion 221 is connected to the flip cover 21, the other end of the first portion 221 is connected to the second portion 222, the second portion 222 and the first portion 221 form a stepped surface 223, and the stepped surface 223 is used to be clamped on a side of the locking slider 31 away from the unlocking component in the locking state.

Specifically, the first portion 221 of the locking pin 22 contacts the first inclined surface 311 of the locking slider 31 during the closing process of the flip cover 21, the locking slider 31 is continuously pushed to move to compress the first spring 32, the latch slit 37 is continuously expanded, when the rear end of the first portion 221 slides out of the locking slider 31, the gap of the latch slit 37 is the largest, the first portion 221 is transited to the second portion 222 with the height being lowered through the stepped surface 223, because there is a height difference between the first portion 221 and the second portion 222, the first spring 32 resets the locking slider 31 by a distance under the action of the spring force, and falls onto the stepped surface 223, the locking slider 31 is far away from the side of the unlocking assembly, that is, the side opposite to the first inclined surface 311 abuts against the stepped surface 223 to clamp the locking pin 22, as shown in fig. 3, the locking mode is more reliable.

Optionally, the locking assembly 3 further includes a second connecting plate 30, two ends of the second connecting plate 30 are vertically connected to the pair of first connecting plates 38, and a surface of the second connecting plate 30 facing the locking slider 31 is provided with a resilient assembly;

the rebound assembly comprises a second spring 33 and a backup plate 36 connected with the second spring 33, and when the rebound assembly is in a locking state, the backup plate 36 is abutted with the second part 222 so as to compress the second spring 33;

in the unlocked state, the locking pin 22 is disengaged from the locking slider 31, and the backup plate 36 ejects the locking pin 22 from the latch slot 37 by the elastic force of the second spring 33.

Specifically, two ends of the second connecting plate 30 are perpendicularly connected with the pair of first connecting plates 38, a rebound assembly is arranged on the second connecting plate 30, the rebound assembly is arranged opposite to the locking slide block 31, after the flip cover plate 21 is closed, the locking pin 22 is clamped with the locking slide block 31, the locking pin 22 compresses a second spring 33 of the rebound assembly, after the switch box is operated in a locking state, the unlocking button 34 is pressed, the locking slide block 31 is opened by the unlocking assembly, the first spring 32 is compressed, the locking pin 22 loses the clamping force of the locking slide block 31, the locking pin automatically pushes the locking pin 22 out of the pin slot 37 under the elastic force of the second spring 33 22 to be separated from the locking assembly 3, the flip cover plate 21 does not need to be pulled apart manually, the flip cover plate 21 automatically pops out, and unlocking of the switch box is completed.

Optionally, referring to fig. 1 and 2, the switch box body 11 includes a bottom wall 14 and four side walls 15 connected to the bottom wall 14, the top ends of two opposite side walls 15 are respectively provided with a panel 13 extending to the outside of the switch box body 11, the unlocking assembly is provided on one panel 13, the locking assembly 3 is provided on the side wall 15 connected to the panel 13, and the unlocking assembly includes:

an unlock button 34;

the unlocking sliding block 341 is arranged in the cavity of the switch box body 1 and connected with one end of the unlocking button 34, the unlocking sliding block 341 is a wedge-shaped sliding block, and two second inclined planes 342 matched with the first inclined planes 311 of the locking sliding blocks are arranged on the contact surfaces of the unlocking sliding block 341 and the pair of locking sliding blocks 31.

Specifically, switch box body 11 is square box-shaped structure, inlay the surface parallel and level of establishing at the surface of aircraft and the surface of aircraft, switch box body 11 is including diapire 14 and four lateral walls 15 of connecting in diapire 14 and constitute, one of them lateral wall 15 is that first lateral wall 11 extends to the outside of switch box body 11 has panel 13, the unblock subassembly is located on this panel 13, locking Assembly 3 then locates on the first lateral wall 11 of being connected with this panel 13, make unblock slider 341 for corresponding the matching with locking slider 31, and unblock slider 341 and locking slider 31 stagger mutually and have a certain distance, when taking place locking and unblock action, make fitting pin 22 stretch into from bolt seam 37 and stretch out and do not receive the hindrance. The unlocking slider 341 is a square strip-shaped wedge-shaped slider which enables the locking slider 31 to displace, that is, two second inclined planes 342 are arranged on the contact surfaces of the unlocking slider 341 and the pair of locking sliders 31, the second inclined planes 342 abut against the two inclined planes of the first inclined planes 311, the locking slider 31 is pushed to move back and forth, the unlocking slider 341 is smoothly inserted into the locking slider 31, the distance of the bolt seam 37 between the locking sliders 31 is expanded, and the acting force required for closing the flip cover plate 21 can be reduced through the inclined plane structure of the wedge-shaped slider.

Optionally, referring to fig. 4, a third spring 35 is arranged on the second connecting plate 30, when the unlocking button 34 is pressed, the unlocking slider 341 abuts against the third spring 35, the unlocking button 34 is released, and the unlocking slider 341 drives the unlocking button 34 to rebound and reset under the elastic force of the third spring 35.

Specifically, after an operator presses the unlocking button 34 in a switch box locking state, the unlocking slider 341 and the third spring 35 are abutted and the third spring 35 is compressed, the bolt slot 37 of the locking slider 31 is propped open with the wedge-shaped slider 341 installed on the unlocking button 34, the first spring 32 is compressed, the second spring 33 compressed by the locking pin 22 is extended and reset under the action of spring force, the locking pin 22 is pushed out, the unlocking operation is completed, the operator stops pressing the unlocking button 34 and then the compressed third spring 35 is extended and reset, and the automatic reset of the unlocking button 34 is completed.

Optionally, the first spring 32, the second spring 33 and the third spring 35 are respectively disposed in the guide posts.

Specifically, first spring 32, second spring 33 and third spring 35 are all installed in the guide post, guarantee that the spring is compressed and reset and only moves along its axis direction, and the spring action is more steady, has improved the stability of locking and unlocking mode.

Optionally, a through hole 12 matched with the unlocking button 34 in shape is formed in the panel 13 of the switch box body 1, the unlocking button 34 is embedded in the through hole 12, and the surface of the unlocking button 34 and the panel 13 of the switch box body 1 are located on the same plane.

Specifically, the button surface of the unlocking button 34 is located on the same plane as the panel 13 of the switch box body 1 in a natural state, so that the locked switch box and the outer surface of the aircraft are smooth, and the aerodynamic appearance of the aircraft is not affected.

Alternatively, the first spring 32 includes a pair of springs arranged in parallel.

Specifically, the first spring 32 on each side is provided as a pair of springs, and the pair of springs is connected with the locking slider 31, so that the locking slider 31 is more stable when moving back to back or moving towards each other, and the stability of the locking and unlocking modes is further improved.

Examples

Referring to fig. 1-4, the present embodiment provides an aircraft switch box comprising:

a switch box body 1;

In this embodiment, the locking assembly 3 includes:

a pair of first connecting plates 38, the pair of first connecting plates 38 are arranged in parallel in the cavity of the switch box body 1 and are vertically connected with the first side wall 11;

In this embodiment, the locking slider 31 is a square strip slider, the side surface of the locking slider 31 facing the unlocking assembly is a first inclined surface 311, and the first inclined surfaces 311 of the two locking sliders 31 are arranged oppositely.

In this embodiment, the locking pin 22 includes a first portion 221 and a second portion 222, one end of the first portion 221 is connected to the flip cover 21, the other end of the first portion 221 is connected to the second portion 222, the second portion 222 and the first portion 221 form a stepped surface 223, and the stepped surface 223 is used for being clamped on a side of the locking slider 31 away from the unlocking component in the locking state.

In this embodiment, the locking assembly 3 further includes a second connecting plate 30, two ends of the second connecting plate 30 are vertically connected to the pair of first connecting plates 38, and a surface of the second connecting plate 30 facing the locking slider 31 is provided with a resilient assembly;

In this embodiment, switch box body 11 includes diapire 14 and connects in four lateral walls 15 of diapire 14, and the top of two relative lateral walls 15 is equipped with respectively to the outside panel 13 that extends of switch box body 11, and the unblock subassembly is located on one panel 13, and locking Assembly 3 locates on the lateral wall 15 of being connected with this panel 13, and the unblock subassembly includes:

an unlock button 34;

the unlocking slider 341 is arranged in the cavity of the switch box body 1 and connected with one end of the unlocking button 34, the unlocking slider 341 is a wedge-shaped slider, and two second inclined surfaces 342 matched with the first inclined surfaces 311 of the locking sliders are arranged on the contact surfaces of the unlocking slider 341 and the pair of locking sliders 31.

In this embodiment, the third spring 35 is arranged on the second connecting plate 30, the unlocking button 34 is pressed, the unlocking slider 341 abuts against the third spring 35, the unlocking button 34 is released, and the unlocking slider 341 drives the unlocking button 34 to rebound and reset under the elastic force action of the third spring 35.

In the present embodiment, the first spring 32, the second spring 33, and the third spring 35 are respectively provided in the guide posts.

In this embodiment, a through hole 12 matched with the unlocking button 34 in shape is formed in the panel 13 of the switch box body 1, the unlocking button 34 is embedded in the through hole 12, and the surface of the unlocking button 34 and the panel 13 of the switch box body 1 are located on the same plane.

In the present embodiment, the first spring 32 includes a pair of springs arranged in parallel.

To sum up, the utility model provides an aircraft switch box can be maintained the electric interface that uses with ground and install in the inside of switch box, when making things convenient for the staff to carry out ground maintenance operation to the aircraft, only uses the locking and the unblock action that mechanical system just can accomplish the switch box fast conveniently, and locking and unblock mode are reliable, and whole device is small, and occupation space is little, is applicable to the aircraft.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An aircraft switch box, comprising:

a switch box body;

a locking assembly which is connected with the locking pin in a matched mode is arranged on the first side wall, opposite to the hinged position, of the switch box body, the locking assembly comprises a pair of locking sliding blocks capable of moving relatively, a pin inserting gap is formed between the pair of locking sliding blocks, when the pair of locking sliding blocks move back to back or oppositely, the pin inserting gap is enlarged or reduced, and when the flip cover plate is closed, the locking pin penetrates through the pin inserting gap and is clamped with the locking sliding blocks;

2. The aircraft switch box of claim 1, wherein the locking assembly comprises:

and each first spring is connected with one first connecting plate at one end and connected with one locking sliding block at the other end.

3. The aircraft switch box of claim 2, wherein the locking slider is a square bar slider, the side of the locking slider facing the unlocking assembly is a first inclined surface, and the first inclined surfaces of the two locking sliders are arranged oppositely.

4. The aircraft switch box of claim 3, wherein the locking pin comprises a first portion and a second portion, one end of the first portion is connected to the flip cover, the other end of the first portion is connected to the second portion, and the second portion and the first portion form a stepped surface for snapping on a side of the locking slider away from the unlocking assembly in the locked state.

5. The aircraft switch box of claim 4, wherein the locking assembly further comprises a second connecting plate, two ends of the second connecting plate are vertically connected with the pair of first connecting plates, and a rebound assembly is arranged on the surface of the second connecting plate facing the locking sliding block;

when the locking pin is unlocked, the locking pin is separated from the locking slide block, and the backup plate ejects the locking pin out of the latch slot under the action of the elastic force of the second spring.

6. The aircraft switch box of claim 5, wherein the switch box body comprises a bottom wall and four side walls connected to the bottom wall, the top ends of two opposite side walls are respectively provided with a panel extending to the outside of the switch box body, the unlocking assembly is arranged on one of the panels, the locking assembly is arranged on the side wall connected with the panel, and the unlocking assembly comprises:

an unlock button;

7. The aircraft switch box according to claim 6, wherein a third spring is arranged on the second connecting plate, the unlocking button is pressed, the unlocking slider abuts against the third spring, the unlocking button is released, and the unlocking slider drives the unlocking button to rebound and reset under the action of the elastic force of the third spring.

8. The aircraft switch box of claim 7, wherein the first spring, the second spring, and the third spring are each disposed in a guide post.

9. The aircraft switch box according to claim 6, wherein a through hole matched with the shape of the unlocking button is formed in the panel of the switch box body, the unlocking button is embedded in the through hole, and the surface of the unlocking button and the panel of the switch box body are located on the same plane.

10. The aircraft switch box of claim 2 wherein the first spring comprises a pair of springs arranged in parallel.