A new type of side door lifting evacuation ladder for urban rail vehicles

Abstract

The present invention relates to the technical field of rail transit evacuation mechanisms, and particularly to a new type of side door lifting evacuation ladder for urban rail vehicles; it includes a frame assembly, a driving mechanism, a rotating arm assembly, a manual operation device, and a pedal assembly: the frame assembly includes a frame structure, a guide rail slider pair, and a gas spring. The guide rail slider pairs are respectively fixed on both sides of the frame structure to guide the up and down sliding of the pedal assembly. One end of the gas spring is hinged to the frame structure, and the other end of the gas spring is hinged to the first-level pedal of the pedal assembly. The structure achieves the effect that the lifting evacuation ladder can be automatically opened and closed, with simple operation and high automation degree. At the same time, it can be used in emergency situations such as power failure, greatly improving the train's escape and evacuation ability.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit evacuation mechanisms, and particularly to a new type of side door lifting evacuation ladder for urban rail vehicles. Background Art

[0002] At present, urban rail transit in China has been developing rapidly, and more and more urban rail vehicles are put into use. When an emergency occurs, passengers need to be evacuated in a timely manner. Generally, there are two common evacuation methods for urban rail vehicles. One is to evacuate through the front end door and directly along the track direction. The other is to evacuate through the side door. An evacuation platform is set in the section, and passengers are evacuated to the two side evacuation platforms through the side door area.

[0003] Due to the large height difference between the floor of the urban rail vehicle and the evacuation platform, in case of emergency evacuation, it is easy to fall, endangering the safety of passengers. Therefore, it is very necessary to set up a new type of evacuation mechanism to meet the need of escape in case of vehicle failure without a platform.

[0004] During the operation of the train, in case of emergencies such as being blocked by track ballast, it will be impossible to evacuate through the front end door, and evacuation needs to be carried out from the two side door areas. Existing escape devices generally require professional personnel to operate quickly and accurately. If non-staff members operate, they need to carefully read the text and pictures in the operation instructions, which takes a long and complex time and affects the evacuation speed of passengers.

[0005] At the same time, in case of emergency evacuation, the vehicle may lose power. The existing automatic evacuation mechanism has the problem that it cannot be used when power is cut off. Summary of the Invention

[0006] The purpose of the present invention is to provide a new type of side door lifting evacuation ladder for urban rail vehicles aiming at the defects existing in the prior art, achieving the effects that the lifting evacuation ladder can be automatically opened and closed, with simple operation and high automation degree, and can be used in emergencies such as power failure, greatly improving the train escape and evacuation ability.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A new type of side door lifting evacuation ladder for urban rail vehicles, comprising a frame assembly, a driving mechanism, a rotating arm assembly, a manual operation device, and a pedal assembly: The frame assembly includes a frame structure, a guide rail slider pair, and a gas spring. The guide rail slider pairs are respectively fixed on both sides of the frame structure to guide the up and down sliding of the pedal assembly. One end of the gas spring is hinged to the frame structure, and the other end of the gas spring is hinged to the first-level pedal of the pedal assembly; The driving mechanism includes a driving device, a driving arm structure, a coupling, and a connecting rod. The driving arm structure is fixed on the frame structure, and the top of the driving arm structure is connected to the first-level pedal of the pedal assembly. The driving device, through the coupling and the connecting rod, is combined with the driving arm structure into a whole; The rotating arm assembly includes a main rotating arm and a secondary rotating arm. One end of the main rotating arm is connected to the first-level pedal of the pedal assembly, and the other end of the main rotating arm is hinged to the secondary rotating arm; One end of the secondary rotating arm is hinged to the frame structure, and the other end of the secondary rotating arm is connected to the second-level pedal of the pedal assembly and drives the second-level pedal to slide up and down; The manual operation device is fixed on the frame structure; The pedal assembly includes the first-level pedal and the second-level pedal. Both sides of the first-level pedal are respectively connected to the guide rail slider pairs on the frame assembly. The first-level pedal is simultaneously connected to the driving arm structure and the main rotating arm. Both sides of the second-level pedal are respectively connected to the guide rail slider pairs on the frame assembly. The second-level pedal is simultaneously connected to the secondary rotating arm to achieve up and down sliding.

[0009] Further, the driving device includes a motor, a driving gear, a driven gear, and a clutch.

[0010] Further, the manual operation device includes a worm, a turbine, an operation connecting rod, and a gear. The worm rotates in cooperation with the turbine, and the end of the worm is a hexagonal protrusion.

[0011] Further, the driving arm structure includes a main driving connecting rod and a secondary driving connecting rod. One end of the main driving connecting rod is hinged to the frame structure, the other end of the main driving connecting rod is hinged to the secondary driving connecting rod, and the secondary driving connecting rod is connected to the first-level pedal of the pedal assembly. A limit block is also provided on the frame structure to limit the hinged part between the other end of the main driving connecting rod and the secondary driving connecting rod.

[0012] Further, the end of the main driving connecting rod is tooth-shaped and is connected to the gear.

[0013] Further, there are 2 driving arm structures and rotating arm assemblies respectively.

[0014] Further, pedal guide rail slider pairs are installed on both sides of the bottom of the first-level pedal and the second-level pedal of the pedal assembly.

[0015] Furthermore, the gas springs are distributed on both sides of the frame assembly.

[0016] Through the technical solution of the present invention, the following technical effects can be achieved:

[0017] By including a frame assembly, a driving mechanism, a rotating arm assembly, a manual operation device, and a pedal assembly: the frame assembly includes a frame composition, a guide rail slider pair, and gas springs. The guide rail slider pairs are respectively fixed on both sides of the frame composition to guide the up and down sliding of the pedal assembly. One end of the gas spring is hinged to the frame composition, and the other end of the gas spring is hinged to the first-level pedal of the pedal assembly; the driving mechanism includes a driving device, a driving arm composition, a coupling, and a connecting rod. The driving arm composition is fixed on the frame composition, and the top of the driving arm composition is connected to the first-level pedal of the pedal assembly. The driving device, the coupling, and the connecting rod are combined with the driving arm composition as a whole; the rotating arm assembly includes a main rotating arm and a secondary rotating arm. One end of the main rotating arm is connected to the first-level pedal of the pedal assembly, and the other end of the main rotating arm is hinged to the secondary rotating arm; one end of the secondary rotating arm is hinged to the frame composition, and the other end of the secondary rotating arm is connected to the second-level pedal of the pedal assembly and drives the second-level pedal to slide up and down; the manual operation device is fixed on the frame composition; the pedal assembly includes the first-level pedal and the second-level pedal. Both sides of the first-level pedal are respectively connected to the guide rail slider pairs on the frame assembly, and the first-level pedal is simultaneously connected to the driving arm composition and the main rotating arm. Both sides of the second-level pedal are respectively connected to the guide rail slider pairs on the frame assembly, and the second-level pedal is simultaneously connected to the secondary rotating arm to achieve a structure of sliding up and down, achieving the effect that the lifting evacuation ladder can be automatically opened and closed, with simple operation and high automation. At the same time, it can be used in emergency situations such as power outages, greatly improving the train evacuation and escape ability. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the closed state of the lifting evacuation ladder of the present invention;

[0020] Figure 2 It is a schematic diagram of the open state of the lifting evacuation ladder of the present invention;

[0021] Figure 3 It is a front view schematic diagram of the lifting evacuation ladder of the present invention;

[0022] Figure 4 is a schematic diagram of the frame assembly of the present invention;

[0023] Figure 5 is of the present invention Figure 3 A - A schematic diagram;

[0024] Figure 6 is of the present invention Figure 3 B - B schematic diagram;

[0025] Figure 7 is a schematic diagram of the drive mechanism of the present invention;

[0026] Figure 8 is a schematic diagram of the drive device of the present invention.

[0027] Reference numerals:

[0028] 1. Frame assembly 2. Drive mechanism 3. Rotating arm assembly 4. Manual operation device 5. Pedal assembly 6. Primary pedal 7. Secondary pedal 8. Worm 9. Turbine 10. Operating link 11. Frame component 12. Guide rail slider pair 13. Gas spring 14. Slave rotating arm 15. Master rotating arm 16. Slave drive link 17. Master drive link 18. Gear 19. Pedal guide rail slider pair 20. Drive device 21. Drive arm component 22. Coupling 23. Link 24. Motor 25. Driving gear 26. Driven gear 27. Clutch. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] A new type of side door evacuation ladder for urban rail vehicles, as Figure 1 、 2As shown in FIGS. 4 and 5, it includes a frame assembly 1, a driving mechanism 2, a rotating arm assembly 3, a manual operating device 4, and a pedal assembly 5: The frame assembly 1 includes a frame component 11, a guide rail slider pair 12, and a gas spring 13. The guide rail slider pairs 12 are respectively fixed on both sides of the frame component 11 to guide the up and down sliding of the pedal assembly 5. One end of the gas spring 13 is hinged to the frame component 11, and the other end of the gas spring 13 is hinged to the primary pedal 6 of the pedal assembly 5; The driving mechanism 2 includes a driving device 20, a driving arm component 21, a coupling 22, and a connecting rod 23. The driving arm component 21 is fixed on the frame component 11, and the top of the driving arm component 21 is connected to the primary pedal 6 of the pedal assembly 5. The driving device 20, the coupling 22, and the connecting rod 23 are combined with the driving arm component 21 as a whole; The rotating arm assembly 3 includes a main rotating arm 15 and a secondary rotating arm 14. One end of the main rotating arm 15 is connected to the primary pedal 6 of the pedal assembly 5, and the other end of the main rotating arm 15 is hinged to the secondary rotating arm 14; One end of the secondary rotating arm 14 is hinged to the frame component 11, and the other end of the secondary rotating arm 14 is connected to the secondary pedal 7 of the pedal assembly 5 and drives the secondary pedal 7 to slide up and down; The manual operating device 4 is fixed on the frame component 11; The pedal assembly 5 includes the primary pedal 6 and the secondary pedal 7. Both sides of the primary pedal 6 are respectively connected to the guide rail slider pairs 12 on the frame assembly 1. The primary pedal 6 is simultaneously connected to the driving arm component 21 and the main rotating arm 15. Both sides of the secondary pedal 7 are respectively connected to the guide rail slider pairs 12 on the frame assembly 1. The secondary pedal 7 is simultaneously connected to the secondary rotating arm 14 to achieve up and down sliding.

[0032] Specifically, it is fixed on both sides of the frame assembly 11 through the guide rail slider pair 12, which plays a guiding role in the up and down sliding of the pedal assembly 5. One end of the gas spring 13 is hinged to the frame assembly 11, and the other end of the gas spring 13 is hinged to the first-level pedal 6 of the pedal assembly 5. This structure is used for the pedal assembly 5 to slide up and down within the position where the guide rail slider pair 12 is located, and the gas spring 13 provides auxiliary support for the first-level pedal 6, making the up and down movement of the pedal assembly 5 smoother. Further, the driving mechanism 2 includes a driving device 20, a driving arm assembly 21, a coupling 22, and a connecting rod 23. The driving arm assembly 21 is fixed on the frame assembly 11, the top of the driving arm assembly 21 is connected to the first-level pedal 6 of the pedal assembly 5, and the driving device 20, the coupling 22, and the connecting rod 23 are combined with the driving arm assembly 21 as a whole. This structure is used for the driving device 20 to act and drive the driving arm assembly 21 to rotate through the coupling 22 and the connecting rod 23. The driving arm assembly 21 drives the first-level pedal 6 to slide up and down. Due to the setting of the two-way driving arm assembly 21, the movement of the first-level pedal 6 sliding up and down is more stable and precise. Further, the rotating arm assembly 3 includes a main rotating arm 15 and a secondary rotating arm 14. One end of the main rotating arm 15 is connected to the first-level pedal 6 of the pedal assembly 5, the other end of the main rotating arm 15 is hinged to the secondary rotating arm 14, one end of the secondary rotating arm 14 is hinged to the frame assembly 11, and the other end of the secondary rotating arm 14 is connected to the second-level pedal 7 of the pedal assembly 5 and drives the second-level pedal 7 to slide up and down. This structure is used for when the driving arm assembly 21 drives the first-level pedal 6 to slide up and down, the first-level pedal 6 drives the main rotating arm 15 to move, and at the same time, the main rotating arm 15 drives the secondary rotating arm 14 to move up and down. The second-level pedal 7 connected to the rotating arm 14 then slides up and down within the guide rail slider pair 12, so that the second-level pedal 7 and the first-level pedal 6 move up and down synchronously, stably and smoothly and form a trapezoidal structure. Further, the manual operating device 4 is fixed on the frame assembly 11. This structure is used for still being able to control the driving mechanism 2 to act through the manual operating device 4 to open or close the evacuation ladder in case of power failure. Further, the pedal assembly 5 includes a first-level pedal 6 and a second-level pedal 7. Both sides of the first-level pedal 6 are respectively connected to the guide rail slider pair 12 on the frame assembly 1. The first-level pedal 6 is simultaneously connected to the driving arm assembly 21 and the main rotating arm 15. Both sides of the second-level pedal 7 are respectively connected to the guide rail slider pair 12 on the frame assembly 1. The second-level pedal 7 is simultaneously connected to the secondary rotating arm 14 to realize the up and down sliding. Thus, the stable linkage of the first-level pedal 6 and the second-level pedal 7 sliding up and down within the guide rail slider pair 12 is realized, making the lifting movement of the evacuation ladder more integral and stable.That is, when the lifting evacuation ladder is closed, the drive mechanism 2 drives the first-level pedal 6 of the pedal assembly 5 to slide upward, drives the rotating arm assembly 3 to act, and then the second-level pedal 7 of the pedal assembly 5 slides upward until it is closed in place; when the lifting evacuation ladder is opened, the drive mechanism 2 drives the first-level pedal 6 of the pedal assembly 5 to slide downward, drives the rotating arm assembly 3 to act, and then the second-level pedal 7 of the pedal assembly 5 slides downward until it is opened in place.

[0033] As a preference of the above embodiment, as Figure 8 shown, the driving device 20 includes a motor 24, a driving gear 25, a driven gear 26, and a clutch 27.

[0034] Specifically, with the structure that the driving device 20 includes a motor 24, a driving gear 25, a driven gear 26, and a clutch २७, when the motor 24 rotates, the driving gear 25 drives the driven gear 26 to rotate, and drives the connecting rod 23 to rotate under the action of the clutch 27, and finally drives the entire mechanism to act.

[0035] As a preference of the above embodiment, as Figure 3 shown, the manual operation device 4 includes a worm 8, a turbine 9, an operation connecting rod 10, and a gear 18. The worm 8 rotates in cooperation with the turbine 9, and the end of the worm 8 is a hexagonal protrusion.

[0036] Specifically, with the structure that the manual operation device 4 includes a worm 8, a turbine 9, an operation connecting rod 10, and a gear 18, the worm 8 rotates in cooperation with the turbine 9, and the end of the worm 8 is a hexagonal protrusion, which is convenient for manual wrench operation. The rotation of the worm 8 drives the rotation of the turbine 9, and then the rotation of the gear 18 is realized, so that the gear 18 drives the main driving connecting rod 17 to act, that is, the driving arm assembly 21 drives the first-level pedal 6 to act.

[0037] As a preference of the above embodiment, as shown in 5, the driving arm assembly 21 includes a main driving connecting rod 17 and a secondary driving connecting rod 16. One end of the main driving connecting rod 17 is hinged to the frame assembly 11, the other end of the main driving connecting rod 17 is hinged to the secondary driving connecting rod 16, and the secondary driving connecting rod 16 is connected to the first-level pedal 6 of the pedal assembly 5. A limiting block is further provided on the frame assembly 11 to limit the hinged part of the other end of the main driving connecting rod 17 and the secondary driving connecting rod 16.

[0038] Specifically, the driving arm assembly 21 includes a main driving link 17 and a secondary driving link 16. One end of the main driving link 17 is hinged to the frame assembly 11, the other end of the main driving link 17 is hinged to the secondary driving link 16, and the secondary driving link 16 is connected to the primary pedal 6 of the pedal assembly 5. A limiting block is also provided on the frame assembly 11 to limit the structure of the hinged joint between the other end of the main driving link 17 and the secondary driving link 16. When the pedal assembly 5 rises to the in-place position, the main driving link 17 and the secondary driving link 16 cooperate with the limiting block behind their joint to form a dead point of the link, thereby meeting the self-locking requirement and making the primary pedal 6 stably fixed.

[0039] As a preference of the above embodiment, as Figure 5 shown, the end of the main driving link 17 is provided with teeth and is connected to the gear 18.

[0040] Specifically, through the structure that the end of the main driving link 17 is provided with teeth and is connected to the gear 18, it is used to better drive the main driving link 17 to act by driving the gear 18 through the manual operation device 4, so as to complete the rapid opening of the evacuation ladder in the case of power failure.

[0041] As a preference of the above embodiment, as Figure 3 shown, there are 2 driving arm assemblies 21 and 2 rotating arm assemblies 3 respectively.

[0042] Specifically, through the structure that there are 2 driving arm assemblies 21 and 2 rotating arm assemblies 3 respectively, the structures are distributed on both sides to ensure the smooth up and down sliding of the pedal assembly 5.

[0043] As a preference of the above embodiment, as Figure 4 、 6 shown, pedal guide rail slider pairs 19 are installed on both sides of the bottom of the primary pedal 6 and the secondary pedal 7 of the pedal assembly 5.

[0044] Specifically, through the structure that pedal guide rail slider pairs 19 are installed on both sides of the bottom of the primary pedal 6 and the secondary pedal 7 of the pedal assembly 5, it can meet the smooth up and down rotation of the driving arm assembly 21 and the rotating arm assembly 3.

[0045] As a preference of the above embodiment, as Figure 5 shown, the gas springs 13 are distributed on both sides of the frame assembly 11.

[0046] Specifically, through the structure that the gas springs 13 are distributed on both sides of the frame assembly 11, it is used to assist the up and down sliding of the pedal assembly 5 for driving, ensuring that the evacuation ladder can be normally operated up and down even in the case of power failure. In the case of power supply, it can assist the overall action to be more stable.

[0047] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of side door lifting evacuation ladder for urban rail vehicles, characterized in that: It includes a frame assembly (1), a drive mechanism (2), a rotating arm assembly (3), a manual operation device (4), and a pedal assembly (5): The frame assembly (1) includes a frame component (11), a guide rail slider pair (12), and a gas spring (13). The guide rail slider pairs (12) are respectively fixed on both sides of the frame component (11) to guide the up and down sliding of the pedal assembly (5). One end of the gas spring (13) is hinged to the frame component (11), and the other end of the gas spring (13) is hinged to the first-level pedal (6) of the pedal assembly (5); The drive mechanism (2) includes a drive device (20), a drive arm component (21), a coupling (22), and a connecting rod (23). The drive arm component (21) is fixed on the frame component (11), and the top of the drive arm component (21) is connected to the first-level pedal (6) of the pedal assembly (5). The drive device (20), the coupling (22), the connecting rod (23), and the drive arm component (21) are combined into a whole, The rotating arm assembly (3) includes a main rotating arm (15) and a secondary rotating arm (14). One end of the main rotating arm (15) is connected to the first-level pedal (6) of the pedal assembly (5), and the other end of the main rotating arm (15) is hinged to the secondary rotating arm (14); One end of the secondary rotating arm (14) is hinged to the frame component (11), and the other end of the secondary rotating arm (14) is connected to the second-level pedal (7) of the pedal assembly (5) and drives the second-level pedal (7) to slide up and down; The manual operation device (4) is fixed on the frame component (11); The pedal assembly (5) includes the first-level pedal (6) and the second-level pedal (7). Both sides of the first-level pedal (6) are respectively connected to the guide rail slider pairs (12) on the frame assembly (1). The first-level pedal (6) is simultaneously connected to the drive arm component (21) and the main rotating arm (15). Both sides of the second-level pedal (7) are respectively connected to the guide rail slider pairs (12) on the frame assembly (1). The second-level pedal (7) is simultaneously connected to the secondary rotating arm (14) to achieve up and down sliding.

2. The novel side door lifting evacuation ladder for urban rail vehicles according to claim 1, wherein: The drive device (20) includes a motor (24), a driving gear (25), a driven gear (26), and a clutch (27).

3. The novel side door lifting evacuation ladder for urban rail vehicles according to claim 2, wherein: The manual operation device (4) includes a worm (8), a turbine (9), an operating connecting rod (10), and a gear (18). The worm (8) rotates in cooperation with the turbine (9), and the end of the worm (8) is a hexagonal protrusion.

4. The novel side door lifting evacuation ladder for urban rail vehicles according to claim 3, characterized in that: The driving arm assembly (21) includes a main driving link (17) and a secondary driving link (16). One end of the main driving link (17) is hinged to the frame assembly (11), the other end of the main driving link (17) is hinged to the secondary driving link (16), and the secondary driving link (16) is connected to the primary pedal (6) of the pedal assembly (5); a limiting block is further provided on the frame assembly (11) to limit the hinged portion between the other end of the main driving link (17) and the secondary driving link (16).

5. The novel side door lifting evacuation ladder for urban rail vehicles according to claim 4, characterized in that: The end of the main driving link (17) is provided with teeth and is connected to the gear (18).

6. The novel side door lifting evacuation ladder for urban rail vehicles according to claim 5, characterized in that: There are 2 driving arm assemblies (21) and rotating arm assemblies (3) respectively.

7. The novel side door lifting evacuation ladder for urban rail vehicles according to claim 6, characterized in that: Pedal guide rail slider pairs (19) are installed on both sides of the bottom of the primary pedal (6) and the secondary pedal (7) of the pedal assembly (5).

8. The novel side door lifting evacuation ladder for urban rail vehicles according to claim 7, characterized in that: The gas springs (13) are distributed on both sides of the frame assembly (11).

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