A safe escape media shielding door with smooth opening

Abstract

The present invention is applicable to the technical field of shielded doors and provides a smooth-opening safety escape medium shielded door, comprising a door frame, two fixed door leaves, and two opening door leaves, wherein the two fixed door leaves are fixedly connected to the interior ends of the door frame. The smooth-opening safety escape medium shielded door is provided with a slidable linkage rack. When the shielded door is in normal operation, the linkage rack engages with a gear on the door frame. In the event of an accident such as a power outage, a user can pull out the fixed plug. At this time, the limit post no longer limits the two blocks. The blocks are rebounded into the linkage rack by the action of a spring. The blocks no longer limit the linkage rack, and the linkage rack falls, so that the linkage rack and the gear no longer engage with each other, and no longer limit the linkage rack. At this time, the user can manually push the two opening door leaves outward and escape from the vehicle without being trapped, thereby improving the practicality of the shielded door.

Description

Technical Field

[0001] The invention belongs to the technical field of shielding doors, and in particular relates to a safe escape medium shielding door with a smooth opening. Background Art

[0002] A platform screen door refers to a glass curtain wall that surrounds the railway platform and the train boarding and alighting space. The platform screen door is installed on the side edge of the subway platform near the track to separate the platform area from the track area. When the train arrives, the electric door on the glass curtain wall opens for passengers to get on and off the train. The main purpose of setting up a platform screen door is to prevent people from falling onto the track and causing accidents, reduce the operating energy consumption of the station's air-conditioning and ventilation system, and at the same time reduce the impact of train operation noise and piston wind on the station, providing passengers with a safe and comfortable waiting environment, avoiding delays in operations due to platform accidents, improving the service level of rail transit, and creating the necessary conditions for the realization of unmanned driving in the rail transit system.

[0003] Shield doors are generally powered by electricity and can be opened synchronously with the subway. They are relatively sturdy and not easily damaged, providing a high degree of protection for passengers. However, when problems occur in the subway system, such as a fire, the power equipment may be damaged, causing the shield doors to lose power and be unable to open automatically. At this time, if passengers want to manually open the shield doors, the process will be more difficult due to the high strength of the shield doors themselves, thus losing the best opportunity to escape. Summary of the Invention

[0004] The present invention provides a safe escape medium shield door with smooth opening, which is intended to solve the problem that when problems occur in the subway system, such as fire, the power equipment may be damaged, causing the shield door to lose power and be unable to open automatically. At this time, if passengers want to manually open the shield door, the process will be more difficult due to the high strength of the shield door itself, thereby losing the optimal escape opportunity.

[0005] The present invention is achieved as follows: a safe escape medium shielding door with smooth opening comprises a door frame, two fixed door leaves and two opening door leaves;

[0006] The two fixed door leaves are respectively fixedly connected to the two ends of the door frame, and the two opening door leaves are both slidably connected to the interior of the door frame along the length direction of the door frame;

[0007] A fixing strip is fixedly connected to the interior of the upper door frame along its length direction, and two through-grooves corresponding to the two open door leaves are respectively provided on the surface of the fixing strip along its length direction, and the upper ends of the two open door leaves are fixedly connected to upper mounting seats along their width direction, and the upper surfaces of the two upper mounting seats are provided with mounting grooves along their length direction, and the interiors of the two mounting grooves are slidably connected with linkage racks, and the top ends of the two linkage racks respectively extend to the upper part of the fixing strip through the two through-grooves;

[0008] The locking mechanism is configured to lock the locking cam of the locking cam and lock the locking cam, wherein the locking cam has a lock hole that is adapted to lock the locking cam and the locking cam, and a lock hole that is adapted to lock the locking cam and the locking cam.

[0009] A rotating shaft is connected to the upper door frame of the door frame and is located above the fixing bar and is rotatably connected thereto in a transverse direction. A gear is fixedly connected to the surface of the rotating shaft.

[0010] When multiple fixing plugs are located inside the fixing holes, multiple limiting columns are located inside the insertion holes, and the two clamping blocks in each mounting hole are respectively clamped inside the two clamping holes under the action of the limiting columns. At this time, the linkage rack and the gear are engaged with each other.

[0011] Preferably, the interior of the fixing hole is provided with an internal thread, the outer surface of the fixing plug is provided with an external thread adapted to the internal thread, and the fixing plug is detachably mounted inside the fixing hole via the external thread.

[0012] Preferably, a connecting piece is fixedly connected to the bottom end of the fixing plug, and an outer surface of the connecting piece is provided with anti-slip grooves.

[0013] Preferably, the bottom ends of the two open door leaves are fixedly connected to a lower mounting seat, and the upper ends of the plurality of upper mounting seats and the lower ends of the plurality of lower mounting seats are provided with pulleys.

[0014] Preferably, the upper surface of the lower door frame of the door frame and the lower surface of the fixing bar are both provided with slide rails along their length directions, which correspond to and fit with the multiple pulleys on the lower mounting seat and the upper mounting seat respectively.

[0015] Preferably, outer edges of the upper door frame and the lower door frame of the door frame are both provided with dustproof strips along their length directions.

[0016] Preferably, surfaces on opposite sides of the two open door leaves are fixedly connected with overlapping strips along their length directions.

[0017] Preferably, the glass used for the two opening door leaves and the two fixed door leaves are both hollow insulating fireproof glass.

[0018] Beneficial effects: Compared with the prior art, the beneficial effects of the present invention are as follows: a safe escape medium shielding door with smooth door opening of the present invention is provided with a slidable linkage rack, the top end of the open door leaf of the shielding door is provided with an upper mounting seat, and the interior of the upper mounting seat is provided with a linkage rack. When the shielding door is in normal operation, the linkage rack is meshed with the gear in the upper door frame of the door frame, and the rotation of the gear can drive the open door leaf to move horizontally, thereby realizing the function of opening and closing. In the event of an accident such as a power outage, people can pull out the fixing plug in the fixing hole. At this time, the limit column at the top end of the fixing plug no longer limits the two blocks. Under the action of the spring, the block is rebounded into the interior of the linkage rack. At this time, the block no longer limits the linkage rack, and the linkage rack will fall under the action of its own gravity, so that the linkage rack and the gear no longer mesh with each other, and also no longer limit the linkage rack. At this time, people can manually push the two open door leaves outward and escape from the car without being trapped, thereby improving the practicality of the shielding door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the internal cross-sectional structure of the upper mounting seat in the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 3 for Figure 1 A partial enlarged view of the middle A area;

[0022] Figure 4 for Figure 1 A partial enlarged view of the middle B area.

[0023] In the figure: 1. Door frame; 2. Fixed door leaf; 3. Opening door leaf; 4. Lower mounting seat; 5. Upper mounting seat; 6. Fixing strip; 7. Through slot; 8. Mounting slot; 9. Linking rack; 10. Mounting hole; 11. Block; 12. Clamping hole; 13. Spring; 14. Push plate; 15. Socket; 16. Fixing plug; 17. Limiting column; 18. External thread; 19. Internal thread; 20. Connecting plate; 21. Pulley; 22. Slide rail; 23. Dustproof strip; 24. Rotating shaft; 25. Gear. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] See also Figure 1-4 , the present invention provides a technical solution: a safe escape medium shielding door with smooth door opening, comprising a door frame 1, two fixed door leaves 2 and two opening door leaves 3;

[0026] The two fixed door leaves 2 are fixedly connected to the two ends of the door frame 1 respectively, and the two opening door leaves 3 are slidably connected to the inside of the door frame 1 along the length direction of the door frame 1.

[0027] In this embodiment, the two open door leaves 3 are movable, the two fixed door leaves 2 are immovable, and the two open door leaves 3 maintain relative motion at the same speed when they are movable.

[0028] Furthermore, a fixing bar 6 is fixedly connected to the inside of the upper door frame of the door frame 1 along its length direction, and two through grooves 7 corresponding to the two open door leaves 3 are provided on the surface of the fixing bar 6 along its length direction. The upper ends of the two open door leaves 3 are fixedly connected to the upper mounting seats 5 along their width direction, and the upper surfaces of the two upper mounting seats 5 are provided with mounting grooves 8 along their length direction. The insides of the two mounting grooves 8 are slidably connected with linkage racks 9, and the top ends of the two linkage racks 9 extend to the upper part of the fixing bar 6 through the two through grooves 7 respectively.

[0029] A rotating shaft 24 is connected to the upper door frame of the door frame 1 and is located above the fixing bar 6 so as to be rotatably connected thereto. A gear 25 is fixedly connected to the surface of the rotating shaft 24 .

[0030] In this embodiment, there are two gears 25 and they correspond to the two linked racks 9 respectively. When the shielding door is operating normally, the two linked racks 9 are respectively engaged with the two gears 25. During the rotation of the two gears 25, the two open door leaves 3 can be driven to move through the two linked racks 9.

[0031] One end of the two rotating shafts 24 can rotatably pass through the inner surface of the door frame 1. A transmission structure is provided inside the door frame 1. The two rotating shafts 24 are driven by a motor to move in opposite directions at the same speed, so that the two rotating shafts 24 can drive the two gears 25 to move relative to each other to realize the opening and closing of the two open door leaves 3.

[0032] The through groove 7 plays a certain role in limiting the movement distance of the two open door leaves 3, preventing the open door leaves 3 from moving too far under the action of inertia and causing the linkage rack 9 and the gear 25 to separate from each other, thereby causing the open door leaves 3 to be uncontrolled.

[0033] Furthermore, a plurality of mounting holes 10 are provided transversely through the side surface of the linkage rack 9 located in the inner part of the mounting groove 8, and two blocking blocks 11 are slidably connected to the interior of the plurality of mounting holes 10. A plurality of blocking holes 12 are provided on both side surfaces of the mounting groove 8, which correspond to and match the plurality of mounting holes 10 respectively. The interiors of the plurality of blocking holes 12 are transversely fixed with springs 13, and the outer ends of the plurality of springs 13 are fixedly connected with push pieces 14 slidably connected to the interiors of the blocking holes 12. A plurality of plug holes 15 corresponding to and connected to the plurality of mounting holes 10 respectively are vertically provided on the lower surface of the linkage rack 9. A plurality of fixing holes connected to the interior of the mounting groove 8 are provided through the lower surface of the upper mounting seat 5 and at the positions of the plurality of plug holes 15. A fixing plug 16 is detachably installed inside the plurality of fixing holes, and a limiting column 17 adapted to the plug hole 15 is fixedly connected to the top of the fixing plug 16.

[0034] When multiple fixing plugs 16 are located inside the fixing holes, multiple limiting columns 17 are located inside the insertion holes 15, and the two clamping blocks 11 in each mounting hole 10 are respectively clamped to the inside of the two clamping holes 12 under the action of the limiting columns 17. At this time, the linkage rack 9 and the gear 25 are engaged with each other.

[0035] In this embodiment, when the shield door is operating normally, the two blocks 11 inside the linkage rack 9 are both held in place by the limit column 17, and parts of the two blocks 11 are located inside the two holes 12. The linkage rack 9 is fixed at its current position in the mounting groove 8 under the limit of the blocks 11, and the linkage rack 9 always remains in meshing engagement with the gear 25, and the rotation of the gear 25 can drive the door leaf 3 to move.

[0036] When the shield door loses power and cannot be opened automatically normally, the trapped people can pull out multiple fixing plugs 16 from multiple fixing holes. After the fixing plugs 16 are pulled out, the limiting column 17 at the top thereof will come out of the insertion hole 15. The limiting column 17 no longer limits the block 11 at this time, and the spring 13 inside the card hole 12 will drive the pushing piece 14 to move in the direction of the linkage rack 9 under the action of its own elastic force, thereby pushing the part of the block 11 located inside the card hole 12 into the mounting hole 10. When the block 11 comes out of the card hole 12, it will no longer limit the linkage rack 9. The linkage rack 9 will fall to the bottom of the mounting groove 8 under the action of its own gravity. At the same time, its top will also be disengaged from the gear 25, and the gear 25 is no longer engaged with it and loses its limit. At this time, the two open door leaves 3 are in a movable state, and people can manually pull them apart to the outside and escape therefrom.

[0037] The limiting column 17 is conical. After the power is restored, if the shielding door wants to resume operation, the staff can reinstall the multiple fixing plugs 16 into the multiple fixing holes. In this process, the limiting column 17 will be reinserted into the inside of the jack 15 to push the linkage rack 9 upward and push the two blocks 11 outward again. The two blocks 11 are again inserted into the inside of the two holes 12 and continue to limit the linkage rack 9. The linkage rack 9 will also engage with the gear 25 again. At this time, the shielding door can resume normal operation.

[0038] Furthermore, an internal thread 19 is provided inside the fixing hole, and an external thread 18 matching the internal thread 19 is provided on the outer surface of the fixing plug 16 . The fixing plug 16 is detachably mounted inside the fixing hole via the external thread.

[0039] The bottom end of the fixing plug 16 is fixedly connected to a connecting piece 20 , and the outer surface of the connecting piece 20 is provided with anti-slip grooves.

[0040] In this embodiment, when removing and pulling out the fixing plug 16 , people can hold the connecting piece 20 and rotate it, and the fixing plug 16 can gradually move outward under the action of the external thread 18 until it is disengaged from the inside of the fixing hole.

[0041] The anti-slip pattern plays an anti-slip role.

[0042] Furthermore, the bottom ends of the two open door leaves 3 are fixedly connected to the lower mounting seats 4, and the upper ends of the multiple upper mounting seats 5 and the lower ends of the multiple lower mounting seats 4 are provided with pulleys 21.

[0043] The upper surface of the lower door frame of the door frame 1 and the lower surface of the fixing bar 6 are both provided with slide rails 22 along their length directions, which correspond to and adapt to the multiple pulleys 21 on the lower mounting seat 4 and the upper mounting seat 5 respectively.

[0044] In this embodiment, the multiple pulleys 21 and the multiple slide rails 22 all play a guiding role, and lubricating oil is added between the two, so that the entire displacement process of the two open door leaves 3 is smoother and smoother, preventing the occurrence of jamming.

[0045] Furthermore, dust strips 23 are provided along the length direction of the outer edges of the upper door frame and the lower door frame of the door frame 1 .

[0046] In this embodiment, the dustproof strip 23 plays a dustproof role, preventing dust and other impurities from entering between the door frame 1 and the open door leaf 3 through the gap between the two, thereby ensuring that there are no excessive obstructions between the pulley 21 and the slide rail 22, ensuring the smooth operation of the two open door leaves 3.

[0047] Furthermore, the surfaces of the two open door leaves 3 on the opposite sides are fixedly connected with overlapping strips along their length directions.

[0048] In this embodiment, the two overlapping strips are both made of soft rubber material, so that the two open door leaves 3 will not have rigid contact with each other when closing, which plays a certain protective role for the two open door leaves 3.

[0049] Furthermore, the glass used for the two opening door leaves 3 and the two fixed door leaves 2 are both hollow insulating fireproof glass.

[0050] In this embodiment, the hollow insulating fireproof glass is relatively strong and is not easily broken even in extreme environments such as fire, so people will not be injured by debris generated by the broken glass.

[0051] The working principle and usage process of the present invention: After the present invention is installed, when the shielding door loses power and cannot be opened automatically normally, people can pull out the multiple fixing plugs 16 from the multiple fixing holes. After the fixing plugs 16 are pulled out, the limiting column 17 at the top thereof will disengage from the insertion hole 15, and the spring 13 inside the card hole 12 will drive the push piece 14 to move in the direction of the linkage rack 9 under the action of its own elastic force, thereby pushing the part of the card block 11 located inside the card hole 12 into the installation hole 10, and the linkage rack 9 will fall to the bottom of the installation groove 8 at this time, and its top end will disengage from the gear 25, and the gear 25 will no longer be engaged with it and loses its limit on it. At this time, the two open door leaves 3 are in a movable state, and people can manually pull them open to the outside and escape from them.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A safe escape media shielding door with smooth opening, characterized by: It comprises a door frame (1), two fixed door leaves (2) and two opening door leaves (3); The two fixed door leaves (2) are respectively fixedly connected to the two ends of the interior of the door frame (1), and the two opening door leaves (3) are both slidably connected to the interior of the door frame (1) along the length direction of the door frame (1); The upper door frame of the door frame (1) is fixedly connected to a fixing strip (6) along its length direction, and the surface of the fixing strip (6) is provided with two through-grooves (7) corresponding to the two open door leaves (3) along its length direction, and the upper ends of the two open door leaves (3) are fixedly connected to an upper mounting seat (5) along their width direction, and the upper surfaces of the two upper mounting seats (5) are provided with mounting grooves (8) along their length direction, and the interiors of the two mounting grooves (8) are slidably connected to a linkage rack (9), and the top ends of the two linkage racks (9) extend to the upper part of the fixing strip (6) through the two through-grooves (7) respectively. The side surface of the linkage rack (9) located in the inner part of the mounting groove (8) is provided with a plurality of mounting holes (10) extending transversely therethrough, and the interiors of the plurality of mounting holes (10) are all slidably connected to two clamping blocks (11), and the two side surfaces of the mounting groove (8) are provided with a plurality of clamping holes (12) respectively corresponding to and adapted to the plurality of mounting holes (10), and the interiors of the plurality of clamping holes (12) are all transversely fixedly connected to springs (13), and the outer ends of the plurality of springs (13) are all fixedly connected to springs slidably connected to the clamping holes (12). The push piece (14) inside, the lower surface of the linkage rack (9) is vertically provided with a plurality of jacks (15) which respectively correspond to and are respectively connected to the plurality of mounting holes (10), the lower surface of the upper mounting seat (5) and the positions of the plurality of jacks (15) are provided with a plurality of fixing holes which are connected to the interior of the mounting groove (8), the interiors of the plurality of fixing holes are detachably provided with fixing plugs (16), and the top ends of the fixing plugs (16) are fixedly connected with limiting columns (17) which are adapted to the jacks (15); A rotating shaft (24) is connected to the interior of the upper door frame of the door frame (1) and is located above the fixing bar (6) so as to be rotatably connected thereto in a transverse direction, and a gear (25) is fixedly connected to the surface of the rotating shaft (24); When the plurality of fixing plugs (16) are located inside the fixing holes, the plurality of limiting columns (17) are located inside the insertion holes (15), and the two clamping blocks (11) in each of the mounting holes (10) are respectively clamped inside the two clamping holes (12) under the action of the limiting columns (17), and at this time, the linkage rack (9) and the gear (25) are meshed with each other; The interior of the fixing hole is provided with an internal thread (19), the outer surface of the fixing plug (16) is provided with an external thread (18) adapted to the internal thread (19), and the fixing plug (16) is detachably mounted inside the fixing hole via the external thread.

2. The safe escape media shielding door with smooth opening according to claim 1, characterized in that: The bottom end of the fixing plug (16) is fixedly connected to a connecting piece (20), and the outer surface of the connecting piece (20) is provided with anti-slip grooves.

3. The smooth-opening safety media shielding door of claim 1, characterized in that: The bottom ends of the two open door leaves (3) are fixedly connected to a lower mounting seat (4), and the upper end of the upper mounting seat (5) and the lower end of the lower mounting seat (4) are both provided with pulleys (21).

4. The smooth-opening safety media shielding door of claim 3, characterized in that: The upper surface of the lower door frame of the door frame (1) and the lower surface of the fixing strip (6) are both provided with slide rails (22) along their length directions, which correspond to and are adapted to the plurality of pulleys (21) on the lower mounting seat (4) and the upper mounting seat (5).

5. The safe escape media shielding door with smooth opening according to claim 1, characterized in that: The outer edges of the upper door frame and the lower door frame of the door frame (1) are both provided with dustproof strips (23) along their length directions.

6. The smooth-opening safety media shielding door of claim 1, characterized in that: Surfaces on opposite sides of the two open door leaves (3) are both fixedly connected with overlapping strips along their length directions.

7. The smooth-opening safety media shielding door of claim 1, characterized in that: The glass used for the two opening door leaves (3) and the two fixed door leaves (2) is hollow heat-insulating fireproof glass.

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