CN217048607U - Platform door for rail transit - Google Patents
Platform door for rail transit Download PDFInfo
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- CN217048607U CN217048607U CN202123429747.3U CN202123429747U CN217048607U CN 217048607 U CN217048607 U CN 217048607U CN 202123429747 U CN202123429747 U CN 202123429747U CN 217048607 U CN217048607 U CN 217048607U
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Abstract
The utility model relates to a platform door for rail transit, which comprises two fixed doors, wherein the two fixed doors are arranged at intervals left and right, one sides of the two fixed doors, which are close to each other, are provided with side boxes, a front door structure, a rear door structure and two driving mechanisms are arranged between the two side boxes, and the front door structure and the rear door structure are positioned behind the side boxes; the rear door structure comprises two rear sliding doors, a gap is arranged between the two rear sliding doors, and the rear sliding doors correspond to the side boxes one by one; this platform door for track traffic has realized adopting the big opening degree passageway, and has reduced the volume of the door body, has reduced the gravity and the load of the door body, keeps the stability of door body structure under the wind pressure loading effect, satisfies the requirement (opening time 3-4.5s, kinetic energy is 1 joule more than the front sliding door) to opening time and kinetic energy of big opening degree (distance), simultaneously, can also realize the dust removal to the front sliding door to realize the locking of two front sliding doors, prevent that the front sliding door from taking place the incident for artificially pulling open.
Description
Technical Field
The utility model relates to a platform door for track traffic belongs to platform passenger protective apparatus field.
Background
Platform doors are an important component of modern rail traffic. The platform door adopts a signal control technology to open and close the door body driven by the motor. In the opening and closing action process, the sliding door at the position corresponding to the train door is synchronously opened and closed, so that the safety and convenience of passengers for getting on and off the train are guaranteed, and safety accidents are avoided.
The half high door structural scheme who satisfies multiple motorcycle type position train door in current platform door trade adopts the big opening degree passageway pattern usually, leads to the door body too big, and the load increases, and fragile can't satisfy big opening degree (distance) and opens door time and kinetic energy's requirement (opening door time 3-4.5s, kinetic energy is not more than 1 joule). Therefore, a platform door for rail transit is needed, the size of the door body is reduced, the load is reduced, and the defects of the existing product are overcome.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, a platform door for rail transit is provided.
The utility model provides a technical scheme that above-mentioned problem adopted does: a platform door for rail transit comprises two fixed doors, wherein the two fixed doors are arranged at intervals from left to right, side boxes are arranged on one sides of the two fixed doors close to each other, a front door structure, a rear door structure and two driving mechanisms are arranged between the two side boxes, and the front door structure and the rear door structure are positioned behind the side boxes;
the rear door structure comprises two rear sliding doors which are arranged at intervals at the left and right, the rear sliding doors correspond to the side boxes one by one, and a gap is formed between the rear sliding doors and the side boxes;
the front door structure comprises two front sliding doors which are arranged at intervals at the left and right, the two front sliding doors are positioned between the two rear sliding doors, the front sliding doors correspond to the rear sliding doors one by one, and the front sliding doors are positioned in front of the rear sliding doors;
the front sliding door and the rear sliding door at the corresponding positions form a group;
one of the two driving mechanisms drives the two front sliding doors to move close to or away from each other, and the other driving mechanism drives the two rear sliding doors to move close to or away from each other;
the front sliding door and the rear sliding door at the corresponding positions synchronously act in proportion at the same time, the kinetic energy index of opening and closing the door in unit time is ensured, the requirements of large opening degree on the door opening time and the door body kinetic energy are met, and the stability of the door body structure is ensured under the action of wind pressure load.
Preferably, two connecting plates are arranged between the two front sliding doors, the two connecting plates are attached to each other, the connecting plates correspond to the front sliding doors one by one, a gap is formed between each connecting plate and each front sliding door, and auxiliary assemblies are arranged on the sides, far away from each other, of the two connecting plates;
preferably, the auxiliary assembly comprises two baffles, two auxiliary units and a plurality of connecting units, the two baffles are respectively positioned in front of and behind the front sliding door, the baffles are fixed on the connecting plate, the auxiliary units correspond to the baffles one by one, the auxiliary units are positioned between the front sliding door and the baffles, and the connecting units are vertically and uniformly distributed between the connecting plate and the front sliding door;
preferably, the baffle and the connecting plate are of an integrally formed structure;
preferably, the connecting unit comprises a connecting block and a connecting rod, the connecting rod is parallel to the fixed door, one end of the connecting rod is fixedly arranged on the front sliding door, the other end of the connecting rod is fixedly provided with a limiting block, the limiting block abuts against the connecting plate, the connecting block is movably sleeved on the connecting rod and is fixedly connected with the connecting plate, a spring is arranged between the connecting block and the front sliding door, the connecting block is connected with the front sliding door through the spring, and the spring is in a compressed state;
preferably, the auxiliary unit comprises a plurality of auxiliary components, the auxiliary components are vertically and uniformly distributed, each auxiliary component comprises a fixing rod and a fixing pipe, the fixing rod is parallel to the connecting rod, the fixing pipe and the fixing pipe are coaxially arranged, one end of each fixing rod is fixedly arranged on the connecting plate, the other end of each fixing rod is inserted into the corresponding fixing pipe, the fixing pipes are connected with the fixing rods in a sliding and sealing manner, one ends of the fixing pipes, far away from the fixing pipes, are provided with first one-way valves, the fixing pipes are provided with air holes, the air holes are located between the fixing rods and the first one-way valves, second one-way valves are installed in the air holes, filter screens are further installed in the air holes, and the filter screens are located between the first one-way valves and the second one-way valves;
preferably, two locking assemblies are further arranged between the two front sliding doors, the locking assemblies correspond to the front sliding doors one by one, each locking assembly comprises a rotating shaft and two sliding grooves, the rotating shaft is parallel to the connecting rods, the two sliding grooves are respectively formed in the two connecting plates, the rotating shaft penetrates through the two sliding grooves in a movable mode, two locking blocks are fixedly arranged on the rotating shaft, the locking blocks correspond to the connecting plates one by one, the two locking blocks are respectively abutted to one sides, away from each other, of the two connecting plates, a ball screw pair is arranged on the rotating shaft, a screw of the ball screw pair is coaxially and fixedly arranged on the rotating shaft, a nut of the ball screw pair is fixedly connected with the front sliding doors, and the rotating shaft is fixedly connected with the connecting plates through bearings.
Preferably, the driving mechanism includes a driving box, a moving assembly and a driving assembly are arranged in the driving box, the moving assembly includes two moving units arranged left and right, the moving unit includes a slide rail and a supporting plate, the supporting plate is connected with the slide rail in a sliding manner, the driving assembly includes a driving wheel and a tensioning wheel, the driving wheel is driven by a driving motor, the driving wheel and the tensioning wheel are connected through a driving belt, two belt clamps are fixedly arranged on the driving belt, the belt clamps correspond to the supporting plates one by one, the belt clamps are fixed on the supporting plate, two idle wheels are arranged on the driving belt, in the two driving belts, the two supporting plates on one driving belt are respectively fixedly connected with the bottoms of the two front sliding doors, and the two supporting plates on the other driving belt are respectively fixedly connected with the bottoms of the two rear sliding doors.
Preferably, a door lock is arranged on the driving box;
compared with the prior art, the utility model has the advantages of:
the utility model relates to a platform door for track traffic, realized adopting the big opening passageway, and reduced the volume of the door body, reduced the gravity and the load of the door body, keep the stability of door body structure to ensure under the wind pressure loading effect of door body structure, satisfy big opening (distance) and open the door time and the requirement of kinetic energy (open the door time 3-4.5s, kinetic energy is more than 1 joule) to, simultaneously, can also realize the dust removal to preceding sliding door to realize the locking of two preceding sliding doors, prevent that preceding sliding door from taking place the incident for drawing open.
Drawings
Fig. 1 is a schematic structural view of a platform door for rail transit according to the present invention;
fig. 2 is a top view of a platform door for rail transit according to the present invention;
fig. 3 is a side view of a platform door for rail transit according to the present invention;
FIG. 4 is a schematic structural view of an auxiliary assembly;
FIG. 5 is a schematic view of the driving mechanism;
FIG. 6 is a schematic view of the moving assembly;
fig. 7 is a schematic structural diagram of the driving assembly.
Wherein: 1. the automatic cleaning device comprises a fixed door, 2. a side box, 3. a rear sliding door, 4. a front sliding door, 5. a connecting plate, 6. a baffle, 7. a connecting block, 8. a connecting rod, 9. a limiting block, 10. a spring, 11. a fixed rod, 12. a fixed pipe, 13. a first one-way valve, 14. an air hole, 15. a second one-way valve, 16. a filter screen, 17. a rotating shaft, 18. a sliding groove, 19. a locking block, 20. a ball screw pair, 21. a bearing, 22. a driving box, 23. a sliding rail, 24. a supporting plate, 25. a driving wheel, 26. a tension wheel, 27. a driving motor, 28. a driving belt, 29. a belt clamp, 30. an idler wheel and 31. a door lock.
Detailed Description
As shown in fig. 1 to 7, the platform door for rail transit in this embodiment includes two fixed doors 1, the two fixed doors 1 are arranged at intervals from left to right, side boxes 2 are disposed on both sides of the two fixed doors 1, a front door structure, a rear door structure and two driving mechanisms are disposed between the two side boxes 2, and the front door structure and the rear door structure are disposed behind the side boxes 2;
the rear door structure comprises two rear sliding doors 3 which are arranged at intervals left and right, and gaps are formed between the rear sliding doors 3 and the side boxes 2 in a one-to-one correspondence manner;
the front door structure comprises two front sliding doors 4 which are arranged at intervals at the left and right, the two front sliding doors 4 are positioned between the two rear sliding doors 3, the front sliding doors 4 correspond to the rear sliding doors 3 one by one, and the front sliding doors 4 are positioned in front of the rear sliding doors 3;
the front sliding door 4 and the rear sliding door 3 at corresponding positions form a group;
one of the two driving mechanisms drives the two front sliding doors 4 to move close to or away from each other, and the other driving mechanism drives the two rear sliding doors 3 to move close to or away from each other;
the front sliding door 4 and the rear sliding door 3 at the corresponding positions synchronously act in proportion at the same time, the kinetic energy index of opening and closing the door in unit time is ensured, the requirements of large opening degree on the door opening time and the door body kinetic energy are met, and the stability of the door body structure is ensured under the action of wind pressure load.
Preferably, two connecting plates 5 are arranged between the two front sliding doors 4, the two connecting plates 5 are attached to each other, the connecting plates 5 correspond to the front sliding doors 4 one by one, a gap is arranged between each connecting plate 5 and each front sliding door 4, and auxiliary assemblies are arranged on the sides, far away from each other, of the two connecting plates 5;
preferably, the auxiliary assembly comprises two baffles 6, two auxiliary units and a plurality of connecting units, the two baffles 6 are respectively positioned in front of and behind the front sliding door 4, the baffles 6 are fixed on the connecting plate 5, the auxiliary units correspond to the baffles 6 one by one, the auxiliary units are positioned between the front sliding door 4 and the baffles 6, and the connecting units are vertically and uniformly distributed between the connecting plate 5 and the front sliding door 4;
preferably, the baffle 6 and the connecting plate 5 are of an integrally formed structure;
preferably, the connecting unit comprises a connecting block 7 and a connecting rod 8, the connecting rod 8 is parallel to the fixed door 1, one end of the connecting rod 8 is fixedly arranged on the front sliding door 4, the other end of the connecting rod 8 is fixedly provided with a limiting block 9, the limiting block 9 abuts against the connecting plate 5, the connecting block 7 is movably sleeved on the connecting rod 8, the connecting block 7 is fixedly connected with the connecting plate 5, a spring 10 is arranged between the connecting block 7 and the front sliding door 4, the connecting block 7 is connected with the front sliding door 4 through the spring 10, and the spring 10 is in a compressed state;
preferably, the auxiliary unit includes a plurality of auxiliary components, the plurality of auxiliary components are vertically and uniformly distributed, the auxiliary components include a fixing rod 11 and a fixing tube 12, the fixing rod 11 is parallel to the connecting rod 8, the fixing tube 12 and the fixing tube 12 are coaxially arranged, one end of the fixing rod 11 is fixedly arranged on the connecting plate 5, the other end of the fixing rod 11 is inserted into the fixing tube 12, the fixing tube 12 is slidably and hermetically connected with the fixing rod 11, a first one-way valve 13 is installed at one end, far away from the fixing tube 12, of the fixing tube 12, an air hole 14 is formed in the fixing tube 12, the air hole 14 is located between the fixing rod 11 and the first one-way valve 13, a second one-way valve 15 is installed in the air hole 14, a filter screen 16 is further installed in the air hole 14, and the filter screen 16 is located between the first one-way valve 13 and the second one-way valve 15;
preferably, two locking assemblies are further arranged between the two front sliding doors 4, the locking assemblies correspond to the front sliding doors 4 one to one, each locking assembly comprises a rotating shaft 17 and two sliding grooves 18, the rotating shaft 17 is parallel to the connecting rods 8, the two sliding grooves 18 are respectively arranged on the two connecting plates 5, the rotating shaft 17 penetrates through the two sliding grooves 18 in a movable mode, two locking blocks 19 are fixedly arranged on the rotating shaft 17, the locking blocks 19 correspond to the connecting plates 5 one to one, the two locking blocks 19 are respectively abutted to one sides, far away from each other, of the two connecting plates 5, a ball screw pair 20 is arranged on the rotating shaft 17, a screw of the ball screw pair 20 is coaxially and fixedly arranged on the rotating shaft 17, a nut of the ball screw pair 20 is fixedly connected with the front sliding doors 4, and the rotating shaft 17 is fixedly connected with the connecting blocks 7 through a bearing 21.
Preferably, the driving mechanism comprises a driving box 22, a moving component and a driving component are arranged in the driving box 22, the moving assembly comprises two moving units arranged left and right, the moving units comprise a slide rail 23 and a support plate 24, the supporting plate 24 is slidably connected with the slide rail 23, the driving assembly comprises a driving wheel 25 and a tension wheel 26, the driving wheel 25 is driven by a driving motor 27, the driving wheel 25 and the tension wheel 26 are connected by a transmission belt 28, two belt clamps 29 are fixedly arranged on the transmission belt 28, the belt clamps 29 correspond to the support plates 24 one by one, the belt clamp 29 is fixed to the support plate 24, and the drive belt 28 is provided with two idle wheels 30, of which two drive belts 28, two support plates 24 on one of the belts 28 are respectively fixedly connected with the bottoms of the two front sliding doors 4, and two support plates 24 on the other belt 28 are respectively fixedly connected with the bottoms of the two rear sliding doors 3.
Preferably, a door lock 31 is arranged on the driving box 22;
the use method of the platform door for track traffic comprises the following steps:
when the door is opened, the two driving motors 27 are both started to rotate the driving wheel 25 and move the driving belt 28, and simultaneously, the two belt clamps 29 on the same driving belt 28 are far away from moving, the moving of the belt clamps 29 drives the supporting plates 24 to move on the sliding rails 23, the two supporting plates 24 on one driving belt 28 drive the two rear sliding doors 3 to move far away, the two supporting plates 24 on the other driving belt 28 drive the two front sliding doors 4 to move far away, the rear sliding doors 3 and the front ring are synchronous by controlling the rotating speed of the driving motors 27, when the front sliding doors 4 move, the distance between the limiting block 9 and the connecting block 7 is reduced through the elastic action of the spring 10, the fixing rod 11 and the fixing tube 12 are relatively moved, air can only be conveyed into the fixing tube 12 from the air hole 14 through the one-way characteristic of the first one-way valve 13, and the nut of the ball screw pair 20 is moved on the ball screw pair 20, because the ball screw pair 20 can convert rotary motion into linear motion or convert linear motion into rotary motion, the screw of the ball screw pair 20 drives the rotating shaft 17 to rotate on the bearing 21, the rotating shaft 17 rotates to drive the locking block 19 to synchronously rotate, and after the limiting block 9 abuts against the connecting block 7, the limiting block 9 drives the connecting block 7 to synchronously move with the front sliding doors 4 along with the continuous movement of the two front sliding doors 4, the connecting block 7 moves to drive the connecting plate 5 to synchronously move, and the locking block 19 penetrates one sliding groove 18;
when the door is closed, the two driving motors 27 are both started to rotate the driven wheel and move the transmission belt 28, and simultaneously, the two belt clamps 29 on the same transmission belt 28 move close to each other, the movement of the belt clamps 29 drives the support plates 24 to move on the slide rails 23, the two support plates 24 on one transmission belt 28 drive the two rear sliding doors 3 to move close to each other, the two support plates 24 on the other transmission belt 28 drive the two front sliding doors 4 to move close to each other, and the rotating shaft 17 and the locking blocks 19 pass through the sliding grooves 18, when the limiting blocks 9 abut against the connecting plates 5, along with the continuous close movement of the two front sliding doors 4, the distance between the limiting blocks 9 and the connecting blocks 7 is reduced, the springs 10 are compressed, and simultaneously, the nuts of the ball screw pairs 20 move on the screw rods of the ball screw pairs 20, the rotating shaft 17 rotates reversely, and the locking blocks 19 abut against the moving plates, meanwhile, the fixed pipe 12 moves on the fixed rod 11, so that the air pressure in the fixed pipe 12 is increased, the air in the fixed pipe 12 cannot be discharged from the air hole 14 through the one-way characteristic of the second one-way valve 15, and only the air in the fixed pipe 12 can be discharged from the first one-way valve 13 and acts on the front sliding door 4, the air is purified through the filter screen 16, and dust on the front sliding door 4 is blown away under the action of air flow;
in addition, through calculation, synchronous action of the front sliding door 4 and the rear sliding door 3 at corresponding positions according to proportional speed can be realized at the same time, the kinetic energy index of opening and closing the door in unit time is ensured, the requirements of large opening degree on the door opening time and the kinetic energy of the door body are met, and the stability of the door body structure is ensured under the action of wind pressure load;
here, can unblock and manual opening the door when emergency through lock 31, support through latch segment 19 and connecting plate 5 and lean on, can realize the locking of two connecting plates 5, prevent that two connecting plates 5 from opening the door for the people to pull open, the security has been improved, moreover, during the state of opening the door, when connecting plate 5 receives the striking, through the elastic action of spring 10, can also realize buffering and damping, in addition, through the cooperation removal of preceding sliding door 4 with back sliding door 3, the volume of the door body has been reduced, the gravity and the load of the door body have been reduced, keep the stability of door body structure under the wind pressure effect, and, through side box 2, can realize platform side maintenance, improve the convenience of maintaining.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (9)
1. A platform door for rail transit, characterized in that: the double-door lock comprises two fixed doors (1), wherein the two fixed doors (1) are arranged at left and right intervals, side boxes (2) are arranged on the sides, close to each other, of the two fixed doors (1), a front door structure, a rear door structure and two driving mechanisms are arranged between the two side boxes (2), and the front door structure and the rear door structure are located behind the side boxes (2);
the rear door structure comprises two rear sliding doors (3) which are arranged at left and right intervals, the rear sliding doors (3) correspond to the side boxes (2) one by one, and a gap is formed between each rear sliding door (3) and each side box (2);
the front door structure comprises two front sliding doors (4) which are arranged at left and right intervals, the two front sliding doors (4) are positioned between the two rear sliding doors (3), the front sliding doors (4) correspond to the rear sliding doors (3) one by one, and the front sliding doors (4) are positioned in front of the rear sliding doors (3);
the front sliding door (4) and the rear sliding door (3) at the corresponding positions form a group;
one of the two driving mechanisms drives the two front sliding doors (4) to move close to or away from each other, and the other driving mechanism drives the two rear sliding doors (3) to move close to or away from each other;
the front sliding door (4) and the rear sliding door (3) at the corresponding positions synchronously act in proportion with the time.
2. A platform door for rail transit according to claim 1, wherein: the driving mechanism comprises a driving box (22), a moving assembly and a driving assembly are arranged in the driving box (22), the moving assembly comprises two moving units which are arranged left and right, the moving unit comprises a sliding rail (23) and a supporting plate (24), the supporting plate (24) is in sliding connection with the sliding rail (23), the driving assembly comprises a driving wheel (25) and a tensioning wheel (26), the driving wheel (25) is driven by a driving motor (27), the driving wheel (25) and the tensioning wheel (26) are connected through a driving belt (28), two belt clamps (29) are fixedly arranged on the driving belt (28), the belt clamps (29) correspond to the supporting plate (24) one by one, the belt clamps (29) are fixed on the supporting plate (24), two idle wheels (30) are arranged on the driving belt (28), and the two driving belts (28) are arranged in the two driving belt (28), two support plates (24) on one of the transmission belts (28) are respectively and fixedly connected with the bottoms of the two front sliding doors (4), and two support plates (24) on the other transmission belt (28) are respectively and fixedly connected with the bottoms of the two rear sliding doors (3).
3. A platform door for rail transit according to claim 2, wherein: the driving box (22) is provided with a door lock (31).
4. A platform door for rail transit according to claim 1, wherein: be provided with two connecting plates (5) between two preceding sliding door (4), two connecting plates (5) laminating, connecting plate (5) and preceding sliding door (4) one-to-one, be equipped with the clearance between connecting plate (5) and preceding sliding door (4), one side of keeping away from each other of two connecting plates (5) all is provided with auxiliary assembly.
5. A platform door for rail transit according to claim 4, wherein: the auxiliary assembly comprises two baffles (6), two auxiliary units and a plurality of connecting units, wherein the two baffles (6) are respectively positioned in the front and the rear of the front sliding door (4), the baffles (6) are fixed on the connecting plate (5), the auxiliary units correspond to the baffles (6) one by one, the auxiliary units are positioned between the front sliding door (4) and the baffles (6), and the connecting units are vertically and uniformly distributed between the connecting plate (5) and the front sliding door (4).
6. A platform door for rail transit according to claim 5, wherein: the baffle (6) and the connecting plate (5) are of an integrally formed structure.
7. A platform door for rail transit according to claim 5, wherein: the connecting unit includes connecting block (7) and connecting rod (8), connecting rod (8) are parallel with fixed door (1), the fixed setting of one end of connecting rod (8) is on sliding door (4) in the front, the fixed stopper (9) that is provided with of the other end of connecting rod (8), stopper (9) support with connecting plate (5) and lean on, connecting block (7) activity cover is established on connecting rod (8), connecting block (7) and connecting plate (5) fixed connection, be provided with spring (10) between connecting block (7) and preceding sliding door (4), connecting block (7) are connected with preceding sliding door (4) through spring (10), spring (10) are in compression state.
8. A platform door for rail transit according to claim 5, wherein: the auxiliary unit comprises a plurality of auxiliary components which are distributed uniformly and vertically, the auxiliary components comprise fixing rods (11) and fixing pipes (12), the fixing rods (11) are parallel to the connecting rods (8), the fixing pipes (12) are coaxially arranged with the fixing pipes (12), one ends of the fixing rods (11) are fixedly arranged on the connecting plates (5), the other ends of the fixing rods (11) are inserted into the fixing pipes (12), the fixing pipes (12) are connected with the fixing rods (11) in a sliding and sealing mode, one ends, far away from the fixing pipes (12), of the fixing pipes (12) are provided with first check valves (13), air holes (14) are formed in the fixing pipes (12), the air holes (14) are located between the fixing rods (11) and the first check valves (13), second check valves (15) are installed in the air holes (14), filter screens (16) are further installed in the air holes (14), the filter screen (16) is located between the first one-way valve (13) and the second one-way valve (15).
9. A platform door for rail transit according to claim 4, wherein: the locking mechanism is characterized in that two locking assemblies are further arranged between the two front sliding doors (4), the locking assemblies correspond to the front sliding doors (4) one by one, each locking assembly comprises a rotating shaft (17) and two sliding grooves (18), the rotating shaft (17) is parallel to the connecting rod (8), the two sliding grooves (18) are respectively arranged on the two connecting plates (5), the rotating shaft (17) movably penetrates through the two sliding grooves (18), two locking blocks (19) are fixedly arranged on the rotating shaft (17), the locking blocks (19) correspond to the connecting plates (5) one by one, the two locking blocks (19) are respectively abutted against one sides, far away from each other, of the two connecting plates (5), a ball screw pair (20) is arranged on the rotating shaft (17), a screw rod of the ball screw pair (20) is coaxially and fixedly arranged on the rotating shaft (17), and a nut of the ball screw pair (20) is fixedly connected with the front sliding doors (4), the rotating shaft (17) is fixedly connected with the connecting block (7) through a bearing (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123429747.3U CN217048607U (en) | 2021-12-31 | 2021-12-31 | Platform door for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123429747.3U CN217048607U (en) | 2021-12-31 | 2021-12-31 | Platform door for rail transit |
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| Publication Number | Publication Date |
|---|---|
| CN217048607U true CN217048607U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123429747.3U Active CN217048607U (en) | 2021-12-31 | 2021-12-31 | Platform door for rail transit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506348A (en) * | 2021-12-31 | 2022-05-17 | 江苏有为轨道交通科技有限公司 | Platform door for rail transit |
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2021
- 2021-12-31 CN CN202123429747.3U patent/CN217048607U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506348A (en) * | 2021-12-31 | 2022-05-17 | 江苏有为轨道交通科技有限公司 | Platform door for rail transit |
| CN114506348B (en) * | 2021-12-31 | 2023-08-15 | 江苏有为轨道交通科技有限公司 | Platform door for rail transit |
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