Vehicle emergency evacuation door lock and train

Abstract

The present invention relates to the technical field of trains, and discloses a vehicle emergency evacuation door lock and a train thereof, comprising a locking mechanism and at least two zipper mechanisms arranged on the evacuation door body, the zipper mechanisms are distributed on one side or both sides of the door body in the height direction, a fixed column is arranged on the vehicle body at the corresponding position of the zipper mechanism, the zipper mechanism comprises a lock hook provided with a hook groove adapted to the fixed column, the locking mechanism comprises a plurality of pull wires connected to the zipper mechanism in a one-to-one correspondence, and the locking mechanism controls the lock hook to rotate by pulling the pull wire to embed or disengage from the fixed column to close or open the evacuation door. The zipper shaft seat is connected to the lock hook by the pull wire, and the pull wire drives the lock hook to disengage from or hook into the limit column by rotating the zipper shaft seat, so as to realize the quick opening and closing of the evacuation door; by using the principle of lever, a U-shaped handle and a push block are arranged at the locking mechanism, and the push block is easily realized by driving the push block through the arc-shaped connecting rod of the U-shaped handle, which saves time and labor, and further provides conditions for the quick opening and closing of the evacuation door.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle evacuation door design, and in particular to a vehicle emergency evacuation door lock and a train thereof. Background Art

[0002] During normal operation of the train, it is necessary to prevent the emergency evacuation door from opening suddenly, causing safety hazards. In the event of an emergency, the evacuation door needs to be opened quickly and conveniently to allow passengers to leave the train safely and orderly.

[0003] The evacuation doors currently on the market do not have easy-to-operate handles on the doors, and it is very difficult to open and close the doors each time. In an emergency, the evacuation doors cannot be opened quickly. In addition, the evacuation doors basically do not have a locking function to prevent misoperation during train operation, which poses a great safety hazard. Even if some evacuation doors are equipped with locking mechanisms, the locking mechanisms are cumbersome to operate when opening and closing the doors, and the evacuation doors still cannot be opened quickly in an emergency. Summary of the invention

[0004] The technical problem solved by the present invention is to overcome the defects of the prior art and provide a vehicle emergency evacuation door lock which can easily realize the door body opening and closing and also has the function of preventing accidental touch.

[0005] The present invention also provides a train provided with the vehicle emergency evacuation door lock.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A vehicle emergency evacuation door lock comprises a locking mechanism and at least two zipper mechanisms arranged on the evacuation door body, the zipper mechanisms are distributed on one side or both sides of the door body in the height direction, a fixed column is arranged on the vehicle body at a corresponding position where the zipper mechanism is arranged, the zipper mechanism comprises a lock hook with a hook groove adapted to the fixed column, the locking mechanism comprises a plurality of pull wires connected to the zipper mechanisms one by one, and the locking mechanism controls the rotation of the lock hook by pulling the pull wire to embed or detach from the fixed column to close or open the evacuation door.

[0008] Furthermore, the locking mechanism also includes a zipper shaft seat, the pull wire is connected to the zipper shaft seat, and the pull wire can be pulled by rotating the zipper shaft seat;

[0009] The zipper mechanism also includes a lock plate that is in close contact with the vehicle body, and a protrusion is fixed on the surface of the lock hook. The overall structure formed by the protrusion and the lock hook is hinged to the lock plate. The lock plate is also provided with a bending part that is horizontally connected to the end of the pull wire. The bending apex of the bending part is hinged to the lock plate. The bending part can drive the lock plate to move horizontally under the tension of the pull wire. A V-shaped groove is provided on the lock plate for the fixed column to be embedded. The inner surface of the other bending end of the bending part is in contact with the protrusion and pushes up the protrusion when the bending part is rotated by the pull wire.

[0010] Furthermore, the locking mechanism also includes a rotation limiting shaft that is cooperatively connected to the end of the zipper shaft seat, and the end of the rotation limiting shaft is sleeved with a push block, which has a handle that is convenient for operating the rotation of the zipper shaft seat.

[0011] Furthermore, it also includes a first protective cover that closes the locking mechanism, and the first protective cover is installed on the door body.

[0012] Furthermore, a second protective cover with the same structure as the first protective cover is provided at the corresponding positions of the locking mechanism and the first protective cover on the other side of the door body in the width direction, and a U-shaped handle is provided between the first protective cover and the second protective cover. The U-shaped handle includes connecting rods at both ends and a handle rod located between the connecting rods. The connecting rods at both ends are hinged to the first protective cover and the second protective cover respectively. The connecting rods are in an arc-bent structure. The end portion of the connecting rod connected to the handle rod is the upper end of the arc-bent structure, and the other end portion of the connecting rod is in contact with the handle portion of the push block and is the lower end of the arc-bent structure.

[0013] Furthermore, the locking mechanism is also provided with a convex clamping plate at the connecting and matching position between the zipper shaft seat and the rotation limit shaft, and a convex slot is provided on the edge of the convex clamping plate. In the initial state of the locking mechanism, the convex slot is in a vertically upward arrangement state; the door body is also equipped with a concave clamping plate adapted to the convex clamping plate directly above the zipper shaft seat, the concave clamping plate is arranged in close contact with the door body and has a bending portion perpendicular to the door body at the end facing the convex clamping plate, and a groove adapted to the convex slot is provided on the bending portion for the convex slot to be inserted, and the concave clamping plate can fit the door body and move in the vertical direction.

[0014] Furthermore, an arc-shaped through hole is provided on the concave card plate, and a rotating lock pin passes through the door body at the arc-shaped through hole. An adjustment plate for controlling the vertical movement of the concave card plate by rotation is also provided at the end of the rotating lock pin passing through the arc-shaped through hole. The adjustment plate is fitted with the concave card plate, and an adjustment column is provided on the end face of the adjustment plate facing the concave card plate, which can rotate with the rotating lock pin and move along the arc path of the arc-shaped through hole of the concave card plate.

[0015] Furthermore, the concave clamping plate is provided with a vertical long strip waist hole below the arc-shaped through hole, and a first limiting column penetrating the long strip waist hole is arranged on the door body.

[0016] Furthermore, the concave clamping plate is provided with a vertical limiting groove extending to the edge of the concave clamping plate above the arc-shaped through hole, and the door body is provided with a second limiting column which can be embedded in the vertical limiting groove when the concave clamping plate rises vertically.

[0017] A train is provided with the vehicle emergency evacuation door lock as described above.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) Connect the zipper shaft seat and the lock hook through a pull wire. By rotating the zipper shaft seat, the pull wire can drive the lock hook to disengage or hook into the limit column, so that the evacuation door can be opened or closed, realizing the quick opening and closing of the evacuation door;

[0020] 2) Using the lever principle, a U-shaped handle and a push block are arranged at the locking mechanism. The arc-shaped connecting rod of the U-shaped handle drives the push block to easily rotate the zipper shaft seat, saving time and effort, and further providing conditions for the quick opening and closing of the evacuation door;

[0021] 3) The convex card plate clamped on the locking mechanism and the concave card plate installed on the door body form an anti-accidental touch operation structure of the evacuation door lock, which can ensure that the evacuation door is locked when not in use, and can be easily unlocked by twisting the rotating lock pin when it is needed;

[0022] 4) A long waist hole and a vertical limit groove are provided on the concave card plate for the first limit column and the second limit column fixed on the door body to be embedded, so as to ensure that the concave card plate always remains in a vertical state when being controlled to move by the rotating lock pin, so as to be aligned with the convex card plate in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the connection between the vehicle emergency evacuation door lock, the door body and the vehicle body described in Example 1;

[0024] Figure 2 for Figure 1 An enlarged view of the locking mechanism as seen from the outside of the evacuation door (without the first protective cover);

[0025] Figure 3 for Figure 2 Schematic diagram of the structure as seen from the inside of the evacuation door;

[0026] Figure 4 This is a schematic diagram of the connection between the zipper mechanism and the pull wire described in Example 1 (the lock hook is hooked in the fixed column);

[0027] Figure 5 for Figure 4 A schematic diagram of the structure in which the middle zipper mechanism is pulled by a pull wire to cause the lock hook to be separated from the fixed column;

[0028] Figure 6 This is a schematic structural diagram of the rotation limiting shaft described in Example 1;

[0029] Figure 7 This is a schematic diagram of the structure of the convex card plate described in Example 1;

[0030] Figure 8 This is a schematic structural diagram of the concave card plate described in Example 1. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0032] Example 1

[0033] like Figure 1 As shown, a train is provided, on which an evacuation door is provided with a vehicle emergency evacuation door lock, the door lock comprises a locking mechanism 1 and four zipper mechanisms 2 arranged on the evacuation door body A, the four zipper mechanisms 2 are distributed on both sides in the height direction of the door body A, two on each side and arranged one above and one below, and the locking mechanism 1 is located between the zipper mechanisms 2 arranged one above and one below.

[0034] like Figure 4 As shown, the vehicle body B is provided with a fixing column 31 at a corresponding position of the zipper mechanism 2, and the zipper mechanism 2 includes a lock hook 21 with a hook groove adapted to the fixing column. Figure 2 As shown, the locking mechanism 1 includes four pull wires 11 connected to four zipper mechanisms 2 in one-to-one correspondence. The locking mechanism 1 controls the rotation of the lock hook 21 by pulling the pull wire 11 to insert or disengage from the fixed column 31 to close or open the evacuation door. Since only one locking mechanism is required and the zipper mechanisms are scattered around the door body, the pull wires extending from the locking mechanism need to be bent in the door body so as to be connected with the zipper mechanisms in various directions. Generally, the pull wires need to be bent in a regular direction in the door body.

[0035] Specifically, Figure 2 and Figure 3 As shown, the locking mechanism 1 also includes a zipper shaft seat 12, and a pull wire 11 is connected to the zipper shaft seat 12. The pull wire 11 can be pulled by rotating the zipper shaft seat 12. The connection positions of the pull wires connected to each zipper mechanism on the zipper shaft seat must all satisfy the requirement that the pull wires are pulled when the zipper shaft seat is rotated. In this embodiment, the pull wires between the zipper mechanism and the zipper shaft seat, which are located on the same side of the door body as the zipper shaft seat and below the zipper shaft seat, are arranged vertically downward as a whole, and the other three pull wires are arranged vertically upward when the zipper shaft seat is extended.

[0036] like Figure 4 and Figure 5As shown, the zipper mechanism 2 also includes a lock plate 22 that is in close contact with the vehicle body B, and a protrusion 23 is fixedly provided on the surface of the lock hook 21. The overall structure formed by the protrusion 23 and the lock hook 21 is in close contact with the lock plate 22 and hinged. The lock plate 22 is also provided with a bending piece 24 that is horizontally connected to the end of the pull wire 11. The bending vertex of the bending piece 24 is hinged to the lock plate 22. The bending piece 24 can drive the lock plate 22 to move horizontally under the pulling force of the pull wire 11. The lock plate 22 is provided with a V-shaped notch 221 for the fixed column 31 to be embedded. The inner surface of the other bending end of the bending piece 24 is in contact with the lower surface of the protrusion 23 and pushes up the protrusion 23 when the bending piece 24 is pulled by the pull wire 11 and rotates. In this embodiment, each pull wire end is horizontally connected to each zipper mechanism, so as to form a horizontal pulling force on the bending piece so that the lock hook and the lock plate can be smoothly removed from the fixed column.

[0037] The locking mechanism 1 further comprises a rotation limiting shaft 13 which is connected to the end of the zipper shaft seat 12. The end of the rotation limiting shaft 13 is sleeved with a push block 14. The push block 14 has a handle for facilitating the rotation of the zipper shaft seat. Figure 6 As shown, the cross-section of one end of the rotation limit shaft 13 is rectangular, and the other end is round outside and square inside (that is, the outer cross-section is round with a square groove inside), the push block 14 is also round outside and square inside, and one end of the square is sleeved on the outer periphery of the rectangular end of the rotation limit shaft 13, and the zipper shaft seat 12 has a rectangular end portion adapted to the square groove of the rotation limit shaft 13, and the rectangular end portion extends into the square groove of the rotation limit shaft 13 and connects with the rotation limit shaft. At this time, the push block 14, the rotation limit shaft 13 and the zipper shaft seat 12 are connected as a whole, and the zipper shaft seat 12 can be driven to rotate by operating the push block 14.

[0038] In order to prevent the zipper shaft seat, the rotation limit shaft and the push block from being exposed to the outside world, a first protective cover (not shown) is also required to seal the locking mechanism. The first protective cover is installed on the door body A. The first protective cover can prevent the external environment from accidentally touching the above structures, and can also prevent debris from entering it and affecting the life of each structure. Similarly, the lock plate and the lock hook of the zipper mechanism 2 in the above text are also correspondingly provided with an adaptive protective cover (not shown) to protect each structure accordingly.

[0039] In order to realize the quick opening and closing of the evacuation door in an emergency state, the present embodiment adopts a U-shaped handle design that spans the width direction of the door body. Specifically, a second protective cover 5 with the same structure as the first protective cover is provided at the corresponding positions of the locking mechanism 1 and the first protective cover on the other side of the width direction of the door body A, and a U-shaped handle 4 is provided between the first protective cover and the second protective cover. The U-shaped handle includes connecting rods 41 at both ends and a handle rod 42 located between the connecting rods. The connecting rods 41 at both ends are hinged to the first protective cover and the second protective cover respectively. The connecting rod 41 is an arc-bent structure and the arc surface is tangent to the push block 14. Taking the connecting rod in the first protective cover as an example, the end where the connecting rod 41 is connected to the handle rod 42 is the upper end of the arc-bent structure, and the other end of the connecting rod 41 is in contact with the handle of the push block 14 and is the lower end of the arc-bent structure. Push the handle rod 42 of the U-shaped handle upwards, and the arc lower end of the connecting rod 41 will press down the push block 14, so that the push block 14 drives the zipper shaft seat 12 to rotate, and the zipper shaft seat 12 stretches the pull wire 11, thereby controlling the zipper mechanism 2 to unlock, and the evacuation door body is separated from the vehicle body.

[0040] like Figure 2 , 7 As shown in Figure 8, the locking mechanism 1 is further provided with a convex card plate 6 at the connecting and matching position between the zipper shaft seat 12 and the rotation limit shaft 13, and a convex slot 61 is provided at the edge of the convex card plate. In the initial state of the locking mechanism 1 (that is, when the zipper shaft seat is not rotating), the convex slot 61 is in a vertically upward arrangement state; the door body A is also equipped with a concave card plate 7 adapted to the convex card plate 6 just above the zipper shaft seat 2. The concave card plate 7 is arranged in close contact with the door body and has a bending portion 71 perpendicular to the door body at the end facing the convex card plate. The bending portion 71 is provided with a groove 72 adapted to the convex slot 61 for the convex slot to be inserted, and the concave card plate can fit the door body for vertical movement.

[0041] like Figure 6 and 7 As shown, the convex clamping plate 6 has an inner hole 62 that cooperates with the rotation limit shaft, and the rotation limit shaft 13 is provided with a circle of annular groove 131 for the convex clamping plate inner hole 62 to be embedded in the outer periphery of the end connected to the zipper shaft seat 12, and the annular groove 131 has two notches 132 in the diameter direction, and the edge of the convex clamping plate inner hole is provided with two protrusions 63 in the diameter direction to adapt to the notches 132 on the rotation limit shaft, so that the convex clamping plate 6 and the rotation limit shaft 13 form a good positioning relationship, and the convex clamping plate 6 will not rotate relative to the rotation limit shaft 13, and it will only move when the rotation limit shaft moves.

[0042] The concave card can fit the door body to move vertically. Figure 8As shown, an arc-shaped through hole 73 is provided on the concave card plate 7, and a rotating lock pin 8 passes through the arc-shaped through hole on the door body A. The end of the rotating lock pin passing through the arc-shaped through hole 73 is also provided with an adjusting plate 81 for controlling the vertical movement of the concave card plate 7 by rotation. The adjusting plate is fitted with the concave card plate, and an adjusting column 811 is provided on the end surface of the adjusting plate 81 facing the concave card plate, which can follow the rotation of the rotating lock pin and move along the arc path of the arc-shaped through hole of the concave card plate. The adjusting plate 81 and the rotating lock pin 13 act synchronously, and the other end of the rotating lock pin 8 away from the adjusting plate is provided with a manual adjustment part 82, which is convenient for the user to drive the rotating lock pin 8 to rotate by operating the manual adjustment part 82, and the manual adjustment part of the rotating pin shaft and the push block are located on the same side of the door body.

[0043] Because the concave card plate needs to move down to cooperate with the convex card plate when the evacuation door is not in use, and move up to separate from the convex card plate when the evacuation door needs to be opened, it is necessary to always ensure that the walking path of the concave card plate is in the vertical direction. In this embodiment, the concave card plate 7 is also provided with a vertical long waist hole 74 below the arc through hole 73, and the door body is provided with a first limiting column 91 that penetrates the long waist hole. At the same time, the concave card plate is also provided with a vertical limiting groove 75 extending to the edge of the concave card plate above the arc through hole, and the door body is provided with a second limiting column 92 that can be embedded in the vertical limiting groove when the concave card plate rises vertically. When the concave card plate 7 moves up or down vertically, the first limiting column 91 and the second limiting column 92 provide excellent guiding effect for the concave card plate 7 on the one hand, and ensure that the concave card plate 7 does not deviate on the other hand.

[0044] In fact, the rotary lock pin of the present embodiment may also be replaced by a vehicle body mounted buckle for locking. The buckle form is widely used in this field and will not be described in detail here.

[0045] The working process of the vehicle emergency door lock of this embodiment is as follows: in the initial state, the convex card plate and the concave card plate are in a matched state. When the evacuation door needs to be opened, the rotating lock pin is turned to move the concave card plate vertically upward, the convex card plate and the concave card plate are separated, the convex card plate is released from the limit, and the handle rod of the U-shaped handle is pushed upward to make the connecting rod press down the push block, thereby driving the zipper shaft seat to rotate and pull the four pull wires, so that the top convex block of the bent part drives the lock hook to rotate and separate from the door body fixed column. At the same time, as the pull wire is pulled, the lock plate will follow the pull wire tension to move horizontally and withdraw from the door body fixed column, so that the evacuation door can be smoothly unlocked and opened. The entire unlocking mechanical structure is linked together and purely mechanically controlled. The user only needs to easily push up the U-shaped handle to realize the quick and smooth opening of the evacuation door. When the evacuation door needs to be closed, the handle rod of the U-shaped handle is pushed up, and the evacuation door body is manually fitted with the car body. When the door body and the car body are in place, the handle rod is loosened, and the lock hook of the zipper mechanism can be embedded in the car body fixed column, and the evacuation door can be closed. Thereafter, the rotating lock pin is turned to control the concave card plate to move down so that the convex card plate is embedded in place. At this time, the convex card plate and the concave card plate are embedded with each other. If the user does not turn the rotating lock pin to unlock this embedded lock, the zipper mechanism will not be unlocked by pushing up the U-shaped handle. That is to say, due to the limitation of the convex card plate at this time, the zipper shaft seat will not be able to rotate. Therefore, the cooperation of the convex card plate and the concave card plate can well avoid the situation where the evacuation door lock is accidentally opened and closed, ensure the reliability of the evacuation door, and effectively improve the safety of the train.

[0046] Obviously, the above embodiments are merely examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vehicle emergency evacuation door lock, characterized in that: The invention comprises a locking mechanism and at least two zipper mechanisms arranged on the evacuation door body, wherein the zipper mechanisms are distributed on one side or both sides of the door body in the height direction, and a fixing column is arranged on the vehicle body at a corresponding position of the zipper mechanism, and the zipper mechanism comprises a lock hook provided with a hook groove adapted to the fixing column, and the locking mechanism comprises a plurality of pull wires connected to the zipper mechanisms one by one, and the locking mechanism controls the rotation of the lock hook by pulling the pull wire to embed or detach from the fixing column to close or open the evacuation door; The locking mechanism also includes a zipper shaft seat, a rotation limiting shaft matched with the end of the zipper shaft seat, a push block is sleeved on the end of the rotation limiting shaft, and the push block has a handle for operating the rotation of the zipper shaft seat; A first protective cover that closes the locking mechanism is installed on the door body, and a second protective cover with the same structure as the first protective cover is arranged at the corresponding position of the locking mechanism and the first protective cover on the other side of the door body in the width direction. A U-shaped handle is arranged between the first protective cover and the second protective cover. The U-shaped handle includes connecting rods at both ends and a handle rod located between the connecting rods. The connecting rods at both ends are hinged to the first protective cover and the second protective cover respectively. The connecting rod is an arc-bent structure. The end portion of the connecting rod connected to the handle rod is the arc-bent upper end of the arc-bent structure, and the other end portion of the connecting rod is in contact with the handle portion of the push block and is the arc-bent lower end of the arc-bent structure.

2. The vehicle emergency door lock according to claim 1, characterized in that: The pull wire is connected to the zipper shaft seat, and the pull wire can be pulled by rotating the zipper shaft seat; The zipper mechanism also includes a lock plate that is in close contact with the vehicle body, and a protrusion is fixed on the surface of the lock hook. The overall structure formed by the protrusion and the lock hook is hinged to the lock plate. The lock plate is also provided with a bending part that is horizontally connected to the end of the pull wire. The bending apex of the bending part is hinged to the lock plate. The bending part can drive the lock plate to move horizontally under the tension of the pull wire. A V-shaped groove is provided on the lock plate for the fixed column to be embedded. The inner surface of the other bending end of the bending part is in contact with the protrusion and pushes up the protrusion when the bending part is rotated by the pull wire.

3. The vehicle emergency door lock according to claim 1, characterized in that: The locking mechanism is also provided with a convex clamping plate at the connecting and matching position of the zipper shaft seat and the rotation limit shaft, and a convex slot is provided on the edge of the convex clamping plate. In the initial state of the locking mechanism, the convex slot is in a vertically upward arrangement state; the door body is also equipped with a concave clamping plate adapted to the convex clamping plate directly above the zipper shaft seat, the concave clamping plate is arranged in close contact with the door body and has a bending portion perpendicular to the door body at the end facing the convex clamping plate, the bending portion is provided with a groove adapted to the convex slot for the convex slot to be inserted, and the concave clamping plate can fit the door body for vertical movement.

4. The vehicle emergency door lock according to claim 3, characterized in that: An arc-shaped through hole is provided on the concave card plate, and a rotating lock pin passes through the door body at the arc-shaped through hole. An adjustment plate for controlling the vertical movement of the concave card plate by rotation is also provided at the end of the rotating lock pin passing through the arc-shaped through hole. The adjustment plate is fitted with the concave card plate, and an adjustment column is provided on the end face of the adjustment plate facing the concave card plate, which can rotate with the rotating lock pin and move along the arc path of the arc-shaped through hole of the concave card plate.

5. The vehicle emergency door lock according to claim 4, characterized in that: The concave clamping plate is provided with a vertical long strip waist hole below the arc-shaped through hole, and the door body is provided with a first limiting column penetrating the long strip waist hole.

6. The vehicle emergency door lock according to claim 3 or 4, characterized in that: The concave card plate is provided with a vertical limiting groove extending to the edge of the concave card plate above the arc-shaped through hole, and the door body is provided with a second limiting column which can be embedded in the vertical limiting groove when the concave card plate rises vertically.

7. A train, characterized in that: An evacuation door is provided, and the evacuation door is provided with a vehicle emergency evacuation door lock as described in any one of claims 1 to 6.

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