Sliding door structure with emergency exit and emergency throwing method thereof

Abstract

The application provides a sliding door structure with an emergency exit and an emergency throwing method thereof. In the structure, an upper sliding rail, a middle sliding rail and a lower sliding rail are fixed on a body structure, a sliding door slides in the upper sliding rail, the middle sliding rail and the lower sliding rail through a pulley and a swing arm, and the sliding door is provided with an emergency exit channel above a waterline position. A ball socket support, a first lock seat, a second lock seat and a sliding block are installed on a periphery of the emergency exit channel on the sliding door. A ball head hinge, a bolt throwing mechanism, a handle, a transparent protective cover plate and an interior trim plate are installed on an emergency door. The emergency door is fixed on the sliding door through the ball head hinge and the bolt throwing mechanism and cooperates with the ball socket support, the first lock seat and the second lock seat. The handle is connected with the bolt throwing mechanism and is used for operating the throwing of the emergency door. The application can simultaneously meet the requirements of land and water emergency evacuation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of structural design, and particularly relates to a sliding door structure with an emergency exit and an emergency throwing method thereof. BACKGROUND

[0002] In order to meet the requirements of crane rescue, air drop and other uses, a large transport helicopter is generally provided with a sliding door arranged along the surface of the fuselage and opened by sliding on the surface of the fuselage. The opening of the sliding door is flush with the floor of the passenger cabin, and the sliding door serves as an emergency exit on both sides of the passenger cabin.

[0003] According to the airworthiness requirements, when the large transport helicopter is in emergency evacuation on land, emergency exits flush with the opening of the passenger cabin floor are arranged on both sides of the passenger cabin, and when the large transport helicopter is in emergency evacuation on water, emergency exits higher than the waterline position are arranged on both sides of the passenger cabin. The waterline position is generally higher than the floor of the passenger cabin. When the helicopter is ditched on water, the bottom of the outer surface of the sliding door is immersed in water, which makes it difficult to open the sliding door. Directly opening the sliding door will cause water to enter the passenger cabin. The general sliding door cannot meet the requirements of emergency evacuation on water.

[0004] Therefore, it is necessary to provide a sliding door structure which can realize the sliding function and meet the requirements of emergency exits for emergency evacuation on land and water at the same time. SUMMARY

[0005] In order to solve the problems in the prior art that the sliding door is difficult to open, directly opening the sliding door will cause water to enter the passenger cabin, and the sliding door cannot meet the requirements of emergency evacuation on water, the present application provides a sliding door structure with an emergency exit and an emergency throwing method thereof. The sliding door structure is designed with a normal sliding function, and an emergency door is arranged above the waterline position of the sliding door. The emergency door serves as an emergency exit for emergency evacuation on water after being thrown. The requirements of emergency exits for emergency evacuation on land and water are met at the same time. The technical solution is as follows:

[0006] In the first aspect, a sliding door structure with an emergency exit is provided, comprising: a sliding door 10, an emergency door 20, an upper slide rail 30, a pulley 31, a swing arm 32, a middle slide rail 40, a lower slide rail 50, an emergency exit channel 60, a ball and socket support 70, a first lock seat 80, a second lock seat 90, a slider 100, a ball hinge 110, a latch ejection mechanism 120, a handle 130, a transparent protective cover 140, and an interior panel 150; wherein the upper slide rail 30, the middle slide rail 40, and the lower slide rail 50 are fixed to the fuselage structure, and the sliding door 10 slides in the upper slide rail 30, the middle slide rail 40, and the lower slide rail 50 through five sets of pulleys 31 and two sets of swing arms 32, and the sliding door 10 is provided with an emergency exit channel above the waterline position. Exit channel 60; the ball and socket support 70, the first lock seat 80, the second lock seat 90 and the slider 100 are installed around the emergency exit channel 60 on the sliding door 10; the ball hinge 110, the latch release mechanism 120, the handle 130, the transparent protective cover 140 and the interior panel 150 are installed on the emergency door 20; the emergency door 20 is respectively matched with the ball and socket support 70, the first lock seat 80 and the second lock seat 90 through the ball hinge 110 and the latch release mechanism 120 and fixed to the sliding door 10; the handle 130 is connected to the latch release mechanism 120 for operating and releasing the emergency door 20, and the transparent protective cover 140 and the interior panel 150 are used to protect the handle 130 and the latch release mechanism 120.

[0007] The emergency exit passage 60 is a structure with a flange, which covers the inner surface of the emergency door 20 and shields the ball hinge 110 and the pin of the pin throwing mechanism 120 on the emergency door 20 .

[0008] The emergency exit passage 60 is a rectangular opening with rounded corners. The opening size is 520 mm in width and 950 mm in height. The bottom of the emergency exit passage 60 is higher than the waterline. The transition between the inner surfaces of the sliding door 10 and the emergency door 20 is smooth and has no exposed objects.

[0009] Furthermore, a sealing strip 160 is provided between the emergency door 20 and the sliding door 10 , and the cross section of the sealing strip 160 is a triangular inner cavity with a long side structure.

[0010] Among them, an upper slide rail 30 is arranged on the top of the sliding door 10, a middle slide rail 40 is arranged in the middle position of the rear, and a lower slide rail 50 is arranged at the bottom. The pulleys 31 at the front upper end and the rear upper end of the sliding door 10 slide in the upper slide rail 30, the pulley 31 in the middle of the rear end of the sliding door 10 slides in the middle slide rail 40, and the pulleys 31 at the front lower end and the rear lower end of the sliding door 10 slide in the lower rail 50; the pulleys 31 at the rear upper end and the rear lower end are connected to the sliding door 10 through a swing arm 32, and the swing arm 32 releases the Z-direction rotation freedom of the pulleys 31 at the rear upper end and the rear lower end. The three sets of slide rails, five sets of pulley groups and two sets of swing arms jointly ensure the sliding stability and connection stiffness of the sliding door 10.

[0011] The top of the emergency exit passage 60 on the sliding door 10 is provided with a ball socket support 70, and the top of the emergency door 20 is provided with a ball head hinge 110 which is inserted into the ball socket support 70 to limit the front-back and inside-outside positions of the emergency door 20; the emergency door 20 can rotate around the ball center connecting line of the front-back ball head hinge 110 in the ball socket support 70 and can drop down along the ball socket opening of the ball socket support 70.

[0012] The latch throwing mechanism 120 comprises a latch 121, a bottom latch 122, a rocker arm 123, a pull rod 124, a spring pre-tightening mechanism 125 and a limiting column 126; the rocker arm 123 is fixedly connected with the handle 130, and the rocker arm 123 is connected with the front and rear latches 121 and the bottom latch 122 through three pull rods 124 respectively, and the rocker arm 123 is connected with the spring pre-tightening mechanism 125; the spring pre-tightening mechanism 125 pre-tightens the opening and closing positions of the latch throwing mechanism 120, and the limiting column 126 limits the closing position of the latch throwing mechanism 120.

[0013] The bottom of the emergency exit passage 60 on the sliding door 10 is provided with a first lock seat 80, and the bottom of the emergency exit passage 60 is provided with a lock seat 90 and two front and rear sliding blocks 100; the bottom of the emergency door 20 is inserted into the first lock seat 80 on the sliding door 10 through the front and rear latches 121 to limit the inside-outside position; the bottom of the emergency door 20 is inserted into the second lock seat 90 on the sliding door 10 through the bottom latch 122 to limit the front-back position; the sliding blocks 100 are in contact with the bottom inclined surface of the emergency door 20; the latch 121 in the closed state is in the over dead point state, and when the handle 130 is turned to throw, the latch 121 is first inserted and then pulled out from the first lock seat 80.

[0014] The transparent protective cover plate 140 is installed on the outer surface of the handle 130 to protect the handle 130 from being misoperated, and the upper end of the transparent protective cover plate 140 is provided with a breakable hole; the inner decoration plate 150 is installed between the handle 130 and the latch throwing mechanism 120 to cover the latch throwing mechanism 120; the inner surface of the emergency door 20 is exposed except for the handle 130 and the transparent protective cover plate 150.

[0015] In the second aspect, an emergency throwing method for the sliding door structure of any one of the first aspect is provided, which comprises the following steps: first, breaking the transparent protective cover 140 to expose the handle 130 when in emergency evacuation; second, rotating the handle 130, and the handle 130 drives the rocker arm 123 to pull out the two front and rear latches 121 and the bottom latch 122 from the first and second lock seats 80 and 90; third, pushing the handle 130 outward, and the ball head hinge 110 at the top of the emergency door 20 rotates around the ball center connecting pivot of the front and rear ball socket supports 70, and the bottom inclined surface of the emergency door 20 slides along the sliding block 100; and fourth, pushing the handle 130 downward to throw away the emergency door 20, and the emergency door 20 falls downward along the ball socket opening of the ball socket support 70 under the action of gravity and the pushing force.

[0016] The present application has at least the following advantages:

[0017] 1. A large size sliding hatch can be used, and the requirements for emergency evacuation on land and water can be met simultaneously;

[0018] 2. The emergency door does not affect the daily use of the sliding door;

[0019] 3. After the emergency door is thrown away, the passage is unobstructed;

[0020] 4. The emergency door is simple and reliable to operate, and is convenient to install and disassemble;

[0021] 5. The overall rigidity and sealing effect of the sliding door and the emergency door are good, and the transition is natural and beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic view of the sliding door structure with an emergency exit of the present application;

[0023] Figure 2 FIG. 2 is a schematic view of the emergency exit passage of the sliding door of the present application;

[0024] Figure 3 FIG. 3 is a schematic view of the emergency door structure of the present application;

[0025] Figure 4 FIG. 4 is a schematic view of the ball head hinge and the ball socket support structure of the present application;

[0026] Figure 5 FIG. 5 is a schematic view of the latch throwing mechanism structure of the present application;

[0027] Figure 6 FIG. 6 is a schematic view of the cooperation of the ball head hinge and the ball socket support of the present application;

[0028] Figure 7 FIG. 7 is a schematic view of the latch throwing mechanism structure of the present application. DETAILED DESCRIPTION

[0029] The present application will be further described in detail through specific embodiments and drawings.

[0030] Please see Figure 1 and Figure 3 , an embodiment of the present application provides a sliding door structure with emergency exit, comprising: sliding door 10, emergency door 20, upper slide rail 30, pulley 31, swing arm 32, middle slide rail 40, lower slide rail 50, emergency exit passage 60, ball socket support 70, first lock seat 80, second lock seat 90, sliding block 100, ball head hinge 110, latch throwing mechanism 120, handle 130, transparent protective cover plate 140, interior trim panel 150 and sealant strip 160, etc.

[0031] Among them, the upper slide rail 30, the middle slide rail 40 and the lower slide rail 50 are fixed on the fuselage structure.

[0032] The sliding door 10 slides in the upper slide rail 30, the middle slide rail 40 and the lower slide rail 50 through 5 groups of pulleys 31 and 2 groups of swing arms 32. The sliding door 10 is provided with an emergency exit passage 60 above the waterline position. The ball socket support 70, the first lock seat 80, the second lock seat 90 and the sliding block 100 are installed on the periphery of the emergency exit passage 60 on the sliding door 10. The ball head hinge 110, the latch throwing mechanism 120, the handle 130, the transparent protective cover plate 140 and the interior trim panel 150 are installed on the emergency door 20.

[0033] The emergency door 20 is fixed on the sliding door 10 through the ball head hinge 110 and the latch throwing mechanism 120 cooperating with the ball socket support 70, the first lock seat 80 and the second lock seat 90 respectively.

[0034] The handle 130 is connected with the latch throwing mechanism 120 for operating the throwing of the emergency door 20.

[0035] The transparent protective cover plate 140 and the interior trim panel 150 are used for protecting the handle 130 and the latch throwing mechanism 120.

[0036] Figure 1 is a schematic diagram of the sliding door structure with emergency exit of the present application, the sliding door 10 is in an open state. As shown in Figure 1 ,

[0037] In the sliding door structure with emergency exit of the present application, the middle upper part of the sliding door 10 is arranged with the emergency door 20, which is normally installed on the sliding door 10 and does not open, without affecting the daily opening, closing and sealing use conditions of the sliding door 10. The emergency exit passage serves as an emergency escape exit in emergency. The opening of the sliding door 10 is flush with the cabin floor, and the emergency exit passage 60 is located above the waterline. After the sliding door 10 is normally opened, it becomes a type II emergency exit and can be used as a land emergency evacuation exit. After the emergency door 20 is opened, it serves as a water emergency evacuation exit.

[0038] The sliding door 10 is a rectangle with height greater than width, and the emergency exit passage 60 in the middle is also a rectangle with height greater than width. The sliding door 10 is connected with the slide rail on the fuselage through a pulley and slides in the slide rail. In order to ensure the connection stiffness of the sliding door 10, five pulleys 31 are arranged at the four corners of the sliding door 10 and the middle rear part behind the emergency exit passage 60, and based on the three-point coplanar principle, three slide rails are designed to avoid sliding jamming, and the upper slide rail 30 is arranged at the top, the middle slide rail 40 is arranged at the middle rear part, and the lower slide rail 50 is arranged at the bottom. In order to avoid over-constraint and simplify the design of the slide rail, the pulleys 31 at the upper rear end and the lower rear end of the sliding door 10 are connected with the sliding door 10 through the swing arm 32, and the swing arm 32 releases the Z-direction rotation freedom of the pulleys 31 at the upper rear end and the lower rear end, and the three groups of slide rails, the five groups of pulleys and the two groups of swing arms jointly ensure the sliding stability and the connection stiffness of the sliding door 10.

[0039] The pulleys 31 at the upper front end and the upper rear end of the sliding door 10 slide in the upper slide rail 30, the pulley 31 at the middle rear end of the sliding door 10 slides in the middle slide rail 40, and the pulleys 31 at the front lower end and the rear lower end of the sliding door 10 slide in the lower slide rail 50.

[0040] The upper slide rail 30, the middle slide rail 40 and the lower slide rail 50 are all curved slide rails, when the sliding door 10 slides and opens, it will first slide outward and then slide backward, and the swing arm 32 will rotate relative to the sliding door 10 and the pulley 31 at the curved segment.

[0041] Figure 2 It is a sliding door emergency exit passage schematic diagram of the sliding door structure with emergency exit of the application, the emergency exit passage 60 is a rectangular opening with a round corner shape, the opening size is 520mm in width and 950mm in height. The bottom of the emergency exit passage 60 is higher than the waterline position, and the opening size is larger than the required type III emergency exit, and there is no protruding shelter around the periphery.

[0042] The emergency exit passage 60 is a structure with a turned-up edge, which covers the inner surface of the emergency door 20, and blocks the ball head hinge 110 and the latch throwing mechanism 120 on the emergency door 20; the transition between the inner surfaces of the sliding door 10 and the emergency door 20 is smooth without any exposed objects.

[0043] A ball socket 70 is arranged at the top position around the emergency exit passage 60 on the sliding door 10, first lock seats 80 are arranged at the bottom of the emergency exit passage 60 on the sliding door 10, a second lock seat 90 and two sliding blocks 100 are arranged at the bottom of the emergency exit passage 60; the ball socket 70, the first lock seat 80, the second lock seat 90 and the sliding block 100 are used for limiting and fixing the emergency door 20.

[0044] Figure 3This is a schematic diagram of an emergency door 20 of a sliding door structure with an emergency exit according to the present invention, wherein a glass is installed in the middle upper portion for observing the outside conditions during daily and emergency evacuation.

[0045] Two sets of ball hinges 110 are located at the top of the emergency door 20. A latch release mechanism 120, a handle 130, a transparent protective cover 140, and an interior trim panel 150 are located in the lower center of the emergency door 20. A transparent protective cover 140 is installed over the handle 130 to cover it and prevent accidental touching of the handle 130 and causing the emergency door to be thrown away during daily use. A breakaway hole is provided at the top of the transparent protective cover 140 where the screws are mounted. During emergency evacuation, the transparent protective cover 140 will break laterally from the breakaway hole, completely exposing the handle 130.

[0046] The upper surface of the latch ejection mechanism 120 is provided with an interior trim panel 150 to protect the mechanism from being exposed. The interior trim panel 150 is provided with a handle shaft through hole and a handle rotation recess, the depth and width of the recess being sufficient to accommodate a human hand to grasp and rotate the handle.

[0047] The inner surface of the emergency door 20 has no other exposed objects except the handle 130 and the transparent protective cover 140. The interior panel 150 is flush with the inner surface of the emergency door 20.

[0048] Figure 4 This is a schematic diagram of the ball hinge 110 and the ball and socket support 70 of the emergency door. The neck between the ball head of the ball hinge 110 and the mounting surface is contracted and transitioned. The ball head of the ball hinge 110 has the same radius as the socket of the ball support 70. The ball head of the ball hinge 110 is inserted into the socket of the ball support 70 to cooperate in limiting the front and rear and inside and outside positions of the emergency door. The emergency door 20 can rotate in the ball and socket support 70 around the axis of the ball center line connecting the front and rear ball hinges 110, and can fall down along the socket opening of the ball and socket support 70.

[0049] Figure 5 Schematic diagram of the latch release mechanism 120, with the transparent protective cover 140 and interior panel 150 removed. The latch release mechanism 120 includes: a latch 121, a bottom latch 122, a rocker arm 123, a pull rod 124, a spring preload mechanism 125, and a limit post 126;

[0050] Rocker arm 123 is fixedly connected to handle 130. Rocker arm 123 is connected to the front and rear latches 121 and the bottom latch 122 via three tie rods 124. Rocker arm 123 is connected to a spring preload mechanism 125. Turning handle 130 drives rocker arm 123, via the three tie rods 124, to simultaneously pull the front and rear latches 121 and the bottom latch 122 out of the emergency door 20. The spring preload mechanism 125 preloads the latch release mechanism 120 between the open and closed positions, while a limit post 126 limits the latch release mechanism 120 to its closed position.

[0051] Emergency door 20 bottom two sides by the front and rear 2 bolt 121 inserted into the first lock seat 80 on the sliding door 10 to limit the inside and outside position; emergency door 20 bottom through the bottom bolt 122 inserted into the second lock seat 90 on the sliding door 10 to limit the front and rear position; slider 100 with the bottom of the emergency door 20 slope contact; bolt 121 closed state is over the dead point state, turn the handle 130 throw when, bolt 121 first inserted from the first lock seat 80.

[0052] Figure 6 is the emergency door upper end ball head hinge 110 and ball socket support 70 cooperation of the cross-sectional view, emergency door 20 top ball head hinge 110 ball head inserted into the ball socket of the ball socket support 70, the neck between the ball head hinge 110 ball head and the mounting surface can make the ball head hinge 110 in the ball socket support 70 rotation to avoid the wall surface of the ball socket, so that the emergency door 20 relative to the sliding door 10 can rotate maximum 10 degrees.

[0053] Figure 7 is the emergency door bolt throw mechanism 120 schematic, bolt 121 installed in the bolt hole in the middle of the emergency door 20 inner cavity, emergency door closed state bolt 121 inserted into the first lock seat 80 on the sliding door 10.

[0054] As shown in Figure 6 and Figure 7 , emergency door closed state, emergency exit channel 60 folding edge cover emergency door 20, only ball head hinge 110 and front and rear 2 bolt 121 and bottom bolt 122 position local exposure installation observation gap, the whole form a good transition, simple and beautiful and no need to increase the interior covering.

[0055] As shown in Figure 6 and Figure 7 , emergency door 20 perimeter boundary a circle between the sliding door 10 there is a sealing strip 160, for emergency door sealing waterproof. In an embodiment, the sealing strip 160 cross section is a triangular cavity with long side structure, the compression stiffness of hollow sealing strip and the compression amount of L-shaped sealing strip, the triangular cavity ensures a certain compression stiffness, the long side structure makes the compression amount of the sealing strip. Emergency door and sliding door between the transition natural, good sealing, do not affect the daily use of the sliding door.

[0056] Emergency door 20 through the upper end ball head hinge 110 inserted into the ball socket support 70 for limiting, the lower end of the front and rear 2 bolt 121 inserted into the first lock seat 80 limit inside and outside position, the lower end of the bottom bolt 122 inserted into the lock seat 90 limit front and rear position, and through the bottom slope of the emergency door 20 and slider 100 limit the upper and lower position, so, the emergency door 20 is locked on the sliding door 10.

[0057] The emergency throwing method in the embodiment of the present application is as follows:

[0058] 1) When evacuating in emergency, first break the transparent protective cover 140 to expose the handle 130;

[0059] 2) Rotate the handle 130, the handle 130 drives the rocker arm 123 to pull out the front and rear two latches 121 and the bottom latch 122 from the first lock seat 80 and the second lock seat 90;

[0060] 3) Push the handle 130 outward, the ball head hinge 110 at the top of the emergency door 20 rotates around the ball center connecting rotation shaft of the front and rear ball socket supports 70, and the bottom inclined surface of the emergency door 20 slides out along the sliding block 100;

[0061] 4) Push the handle 130 downward to throw away the emergency door 20, the emergency door 20 drops downward along the ball socket opening of the ball socket support 70 under the action of gravity and the pushing force.

[0062] The above only expresses the embodiment of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. In addition, the part of the present application not described in detail is the conventional technology.

Claims

1. A sliding door construction with emergency exit, characterized in that The utility model relates to a kind of emergency exit structures of sliding door, including: sliding door (10), emergency door (20), upper slide rail (30), pulley (31), swing arm (32), middle slide rail (40), lower slide rail (50), emergency exit passage (60), ball socket support (70), first lock seat (80), second lock seat (90), slider (100), ball head hinge (110), latch throwing mechanism (120), handle (130), transparent protective cover plate (140), interior trim panel (150);Wherein, upper slide rail (30), middle slide rail (40), lower slide rail (50) are fixed on fuselage structure, sliding door (10) is slid in upper slide rail (30), middle slide rail (40) and lower slide rail (50) by pulley (31) and swing arm (32), sliding door (10) is provided with emergency exit passage (60) above waterline position;Ball socket support (70), first lock seat (80), second lock seat (90) and slider (100) are installed on the periphery of emergency exit passage (60) on sliding door (10);Ball head hinge (110), latch throwing mechanism (120), handle (130), transparent protective cover plate (140) and interior trim panel (150) are installed on emergency door (20);Emergency door (20) is fixed on sliding door (10) by ball head hinge (110) and latch throwing mechanism (120) cooperation with ball socket support (70), first lock seat (80) and second lock seat (90) respectively;Handle (130) is connected with latch throwing mechanism (120), for operating throwing emergency door (20); Emergency exit passage (60) is the structure with flanging, flanging covers the inner surface of emergency door (20), and the latch of ball head hinge (110) and latch throwing mechanism (120) on emergency door (20) is shielded; Sliding door (10) top is arranged upper slide rail (30), middle position of rear portion is arranged middle slide rail (40), bottom is arranged lower slide rail (50), pulley (31) of front upper end and rear upper end of sliding door (10) is slid in upper slide rail (30), pulley (31) of middle of rear end of sliding door (10) is slid in middle slide rail (40), pulley (31) of front lower end and rear lower end of sliding door (10) is slid in lower slide rail (50);Pulley (31) of rear upper end and rear lower end is connected with sliding door (10) by swing arm (32), swing arm (32) releases the Z direction rotation freedom degree of pulley (31) of rear upper end and rear lower end, and slide rail, pulley group and swing arm guarantee the sliding stability and connection rigidity of sliding door (10) together; The top position of emergency exit passage (60) on sliding door (10) is provided with ball socket support (70), emergency door (20) top installs ball head hinge (110), ball head hinge (110) is inserted into ball socket support (70) and cooperates to limit front and rear and inside and outside positions of emergency door (20);Emergency door (20) can rotate around the ball center connecting line pivot of front and rear ball head hinge (110) in ball socket support (70), and can drop down along the ball socket opening of ball socket support (70) ​ The latch throwing mechanism (120) comprises a latch (121), a bottom latch (122), a rocker arm (123), a pull rod (124), a spring pre-tightening mechanism (125) and a limiting column (126); the rocker arm (123) is fixedly connected with a handle (130), the rocker arm (123) is connected with the front and rear latches (121) and the bottom latch (122) through the pull rod (124), and the rocker arm (123) is connected with the spring pre-tightening mechanism (125); the spring pre-tightening mechanism (125) pre-tightens the opening and closing positions of the latch throwing mechanism (120), and the limiting column (126) limits the closing position of the latch throwing mechanism (120); First lock seats (80) are arranged at the bottom of both sides of an emergency exit passage (60) on a sliding door (10), a second lock seat (90) and two sliders (100) are arranged at the bottom of the emergency exit passage (60); two latches (121) are arranged at the bottom of both sides of an emergency door (20) to limit the inside and outside positions by being inserted into the first lock seats (80) on the sliding door (10); a bottom latch (122) is arranged at the bottom of the emergency door (20) to limit the front and rear positions by being inserted into the second lock seat (90) on the sliding door (10); the sliders (100) are in contact with the bottom inclined surface of the emergency door (20); the latches (121) are in the over dead point state in the closed state, and the latches (121) are inserted into the first lock seats (80) and then pulled out from the first lock seats (80) when the handle (130) is rotated to throw the latches.

2. The sliding door construction with emergency exit according to claim 1, characterized in that The emergency exit passage (60) is a rectangular opening with rounded corners, the opening size is 520mm in width and 950mm in height, and the bottom of the emergency exit passage (60) is higher than the waterline position.

3. The sliding door construction with emergency exit according to claim 1, characterized in that A sealing rubber strip (160) is arranged between the emergency door (20) and the sliding door (10), and the cross section of the sealing rubber strip (160) is a triangular inner cavity with a long side structure.

4. The sliding door construction with emergency exit according to claim 1, characterized in that A transparent protective cover plate (140) is mounted on the outer surface of the handle (130), and an easy-to-break hole is arranged at the mounting screw position of the upper end of the transparent protective cover plate (140); an interior trim panel (150) is mounted between the handle (130) and the latch throwing mechanism (120).

5. An emergency release method for the sliding door structure according to any one of claims 1 to 4, characterized in that, When an emergency evacuation is performed, the transparent protective cover plate (140) is first broken, and the handle (130) is exposed; the handle (130) is rotated, the handle (130) drives the rocker arm (123) to pull out the front and rear latches (121) and the bottom latch (122) from the first lock seats (80) and the second lock seat (90); the handle (130) is pushed outward, the ball head hinge (110) at the top of the emergency door (20) is rotated around the ball center connecting pivot of the front and rear ball socket supports (70), and the bottom inclined surface of the emergency door (20) slides out along the sliders (100); the handle (130) is pushed downward to throw away the emergency door (20), and the emergency door (20) falls downward along the ball socket opening of the ball socket support (70) under the action of gravity and the pushing force.

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