CN113047761A - Lifting platform door mechanism - Google Patents
Lifting platform door mechanism Download PDFInfo
- Publication number
- CN113047761A CN113047761A CN202110361241.9A CN202110361241A CN113047761A CN 113047761 A CN113047761 A CN 113047761A CN 202110361241 A CN202110361241 A CN 202110361241A CN 113047761 A CN113047761 A CN 113047761A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- bracket
- mounting bracket
- platform door
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/04—Shutters, movable grilles, or other safety closing devices, e.g. against burglary of wing type, e.g. revolving or sliding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
- B61B1/02—General arrangement of stations and platforms including protection devices for the passengers
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
- E05F15/681—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a lifting platform door mechanism which comprises a mounting bracket, wherein a guide rail is fixedly mounted on the mounting bracket, a bottom plate is connected onto the guide rail in a sliding manner, mounting seats are fixedly connected between the top and the bottom of the bottom plate, and a lifting mechanism for driving a platform door to move in the vertical direction is mounted between the mounting seats. According to the invention, compared with the traditional open type closed type shielding door, the lifting type platform door mechanism consisting of the guide rail, the bottom plate, the driving mechanism, the lifting mechanism, the connecting mechanism and the buffer mechanism realizes the lifting type opening and closing of the shielding door, can realize the effect that passengers pass through when parking platforms of different vehicle types, opens the passing space of the passengers to the maximum extent, improves the passenger riding experience, simultaneously reduces the cost by two to three layers compared with the cost of the existing shielding door, is low in installation and maintenance cost, and can greatly reduce the accident rate and ensure the safety of the passengers if the lifting type platform door is applied to a high-speed railway platform.
Description
Technical Field
The invention relates to the technical field of rail transit platform doors, in particular to a lifting type platform door mechanism.
Background
The rail transit platform door is generally an open closed type shield door, i.e. a shield door, which is installed at the edge of a rail transit platform such as a subway, a light rail and the like, isolates a rail from a platform waiting area, and is provided with a continuous barrier corresponding to a train door and capable of controlling opening and closing of a sliding door in a multistage manner, so that the shield door needs to be designed to be consistent with the train door and move synchronously.
However, with the continuous development of society, the types of trains are more and more, the conventional platform screen door cannot meet the requirements, in order to deal with the door opening positions of the trains with different types, a lifting platform guardrail is adopted, the opening of the lifting platform guardrail is larger, the installation and maintenance cost is low, and compared with the screen door, the lifting platform screen door is easier to flexibly deal with the trains with different carriage numbers and different vehicle door positions.
Disclosure of Invention
In order to solve the above problems in the background art, an elevating platform door mechanism is proposed.
In order to achieve the purpose, the invention adopts the following technical scheme:
a lifting platform door mechanism comprises a mounting bracket, wherein a guide rail is fixedly mounted on the mounting bracket, a bottom plate is connected onto the guide rail in a sliding manner, mounting seats are fixedly connected between the top and the bottom of the bottom plate, and a lifting mechanism for driving a platform door to move in the vertical direction is mounted between the mounting seats;
the lifting mechanism comprises a group of first guide pillars fixedly connected between mounting seats, four first sliding blocks are connected onto the first guide pillars in a sliding mode, a scissor mechanism is rotatably mounted on the mounting seats at the top of the mounting support, the free end of the bottom of the scissor mechanism is rotatably connected with the first sliding block at the bottommost end of the first guide pillars, the middle section of the scissor mechanism is rotatably matched with the other three first sliding blocks, a fixed pulley is rotatably mounted at the top of the mounting seat, a steel wire rope is wound on the fixed pulley, one end of the steel wire rope is fixedly connected onto the first sliding block at the bottommost end of the first guide pillars, and the other end of the steel wire rope is fixedly connected onto the mounting support;
and a driving mechanism is installed on the other side of the mounting bracket, and the driving mechanism is fixedly connected with the bottom plate through a connecting mechanism.
As a further description of the above technical solution:
the driving mechanism comprises a driven wheel rotatably mounted on one side of the top of the mounting support, a motor is fixedly mounted at the bottom of the mounting support, an output shaft of the motor is in transmission connection with a main belt wheel, the main belt wheel is in transmission connection with the driven wheel through a belt, and the belt is fixedly connected with the bottom plate through a connecting mechanism.
As a further description of the above technical solution:
the connecting mechanism comprises a connecting frame fixedly connected with one side of the bottom plate, two fixing frames are fixedly connected with one side of the connecting frame, the belt penetrates through the fixing frames, and fixing clamps for fixing the belt on the fixing frames are fixedly connected onto the fixing frames.
As a further description of the above technical solution:
the guide rail is provided with a sliding groove, and one side of the bottom plate is fixedly provided with a second sliding block which is in sliding connection with the sliding groove.
As a further description of the above technical solution:
the shearing fork mechanism is formed by assembling 28 connecting rods in a staggered mode, the joints of the adjacent connecting rods are rotatably connected through rotating shafts, and the four first sliding blocks are distributed on the shearing fork mechanism at equal intervals.
As a further description of the above technical solution:
the top and the bottom of the bottom plate are fixedly connected with first supports, the first sliding block located at the lowest end of the first guide pillar is fixedly connected with second supports, and a buffering mechanism is installed between the first supports and the second supports.
As a further description of the above technical solution:
the buffer mechanism comprises a second guide pillar fixedly connected between the first supports, the second guide pillar penetrates through the second supports, springs are sleeved on the second guide pillar, the tops of the springs are in elastic contact with the first supports located at the tops of the bottom plates, and the bottoms of the springs are in elastic contact with the second supports.
As a further description of the above technical solution:
the bottom of the mounting bracket is fixedly connected with a third bracket, and the other end of the steel wire rope is fixedly connected with the third bracket.
As a further description of the above technical solution:
a first mounting frame is fixedly mounted on one side of the top of the mounting support, and the driven wheel is rotatably mounted on the first mounting frame.
As a further description of the above technical solution:
the opposite side of the bottom of the mounting bracket is fixedly provided with a second mounting bracket, and the motor is fixedly arranged on the second mounting bracket.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, the connecting mechanism is driven by the driving mechanism to move upwards in the vertical direction, so as to drive the bottom plate to move on the guide rail, as the length of the steel wire rope is fixed, the steel wire rope rotates through the fixed pulley, the other end of the steel wire rope drives the first slide block positioned at the lowest end of the first guide pillar to move upwards, so as to drive the scissor fork mechanism to fold upwards, and further to enable the other three first slide blocks to synchronously move upwards in the vertical direction, wherein the lifting type platform consists of two lifting type platform door mechanisms, the first slide blocks positioned on the same horizontal plane are fixedly connected through the steel wire cables, the steel wire cables are combined and synchronously lifted along with the movement of the four first slide blocks, and the shield door is opened. Meanwhile, the cost is reduced by two to three layers compared with the cost of the existing shielding door, the installation and maintenance cost is low, and if the lifting platform door is applied to a high-speed railway platform, the accident rate can be greatly reduced, and the safety of passengers is guaranteed.
2. According to the shielding door, when the first sliding block positioned at the bottommost end of the first guide pillar ascends, the second support is driven to extrude the spring to ascend synchronously, at the moment, the opening of the door is buffered due to the elastic action of the spring, so that the safety of the shielding door is improved, and when the first sliding block positioned at the bottommost end of the first guide pillar descends, the spring applies downward pressure to the second support to push the first sliding block at the bottommost end to move downwards, the shearing fork mechanism moves downwards and expands, and the other three first sliding blocks are driven to move downwards synchronously to close the shielding door.
Drawings
Fig. 1 is a schematic perspective view illustrating an elevating platform door mechanism according to an embodiment of the present invention;
fig. 2 is a partially enlarged schematic view of a driven wheel of an elevating platform door mechanism according to an embodiment of the present invention;
fig. 3 is a partially enlarged schematic view of a main pulley of an elevating platform door mechanism according to an embodiment of the present invention;
fig. 4 is a schematic perspective view illustrating a slider of an elevating platform door mechanism according to an embodiment of the present invention;
fig. 5 is a schematic perspective view illustrating a scissor mechanism of an elevating platform door mechanism according to an embodiment of the present invention.
Illustration of the drawings:
1. mounting a bracket; 2. a drive mechanism; 21. a driven wheel; 22. a belt; 23. a motor; 24. a primary pulley; 3. a guide rail; 4. a base plate; 5. a lifting mechanism; 51. a scissor mechanism; 52. a wire rope; 53. a fixed pulley; 54. a first guide post; 55. a first slider; 6. a buffer mechanism; 61. a spring; 62. a second guide post; 7. a connecting mechanism; 71. a fixing clip; 72. a fixed mount; 73. a connecting frame; 8. a first mounting bracket; 9. a mounting seat; 10. a first bracket; 11. a second mounting bracket; 12. a third support; 13. a second bracket; 14. and a second slider.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-5, the present invention provides a technical solution: a lifting type platform door mechanism comprises a mounting bracket 1, wherein a guide rail 3 is fixedly mounted on the mounting bracket 1, a bottom plate 4 is connected onto the guide rail 3 in a sliding manner, a sliding groove is formed in the guide rail 3, a second sliding block 14 connected with the sliding groove in a sliding manner is fixedly mounted on one side of the bottom plate 4, mounting seats 9 are fixedly connected between the top and the bottom of the bottom plate 4, and a lifting mechanism 5 for driving a platform door to move in the vertical direction is mounted between the mounting seats 9;
the lifting mechanism 5 comprises a group of first guide posts 54 fixedly connected between the mounting seats 9, four first sliding blocks 55 are connected on the first guide posts 54 in a sliding manner, a scissor mechanism 51 is rotatably mounted on the mounting seat 9 at the top of the mounting bracket 1, the free end of the bottom of the scissor mechanism 51 is rotatably connected with the first sliding block 55 at the bottommost end of the first guide posts 54, the middle section of the scissor mechanism 51 is rotatably matched with the other three first sliding blocks 55, the scissor mechanism 51 is formed by assembling 28 connecting rods in a staggered manner, the joints of the adjacent connecting rods are rotatably connected through a rotating shaft, the four first sliding blocks 55 are equidistantly distributed on the scissor mechanism 51, a fixed pulley 53 is rotatably mounted at the top of the mounting seat 9, a steel wire rope 52 is wound on the fixed pulley 53, one end of the steel wire rope 52 is fixedly connected to the first sliding block 55 at the bottommost end of the first guide posts 54, and the other end of the steel wire rope 52 is fixedly, a first mounting frame 8 is fixedly mounted on one side of the top of the mounting bracket 1, and a driven wheel 21 is rotatably mounted on the first mounting frame 8;
the other side of the mounting bracket 1 is provided with a driving mechanism 2, and the driving mechanism 2 is fixedly connected with the bottom plate 4 through a connecting mechanism 7;
the connecting mechanism 7 is driven to move upwards in the vertical direction through the driving mechanism 2, so that the bottom plate 4 is driven to move on the guide rail 3, the length of the steel wire rope 52 is fixed, the steel wire rope 52 rotates through the fixed pulley 53, the other end of the steel wire rope 52 drives the first sliding block 55 positioned at the lowest end of the first guide pillar 54 to move upwards, so that the scissors fork mechanism 51 is driven to fold upwards, and the other three first sliding blocks 55 are further driven to synchronously move upwards in the vertical direction, wherein the lifting platform consists of two lifting platform door mechanisms, the first sliding blocks 55 positioned on the same horizontal plane are fixedly connected through steel wire cables, and the steel wire cables are combined and synchronously lifted along with the movement of the four first sliding blocks 55, so that the shielding door is;
the invention can realize that the passing effect of passengers is not influenced when different vehicle types stop at the platform, the passing space of the passengers is opened to the maximum extent, the riding experience of the passengers is improved, meanwhile, the manufacturing cost is reduced by two to three layers compared with the manufacturing cost of the existing shielding door, the installation and maintenance cost is low, if the lifting type platform door is applied to a high-speed railway platform, the accident rate can be greatly reduced, and the safety of the passengers is ensured.
Referring to fig. 1-3, the driving mechanism 2 includes a driven wheel 21 rotatably mounted on one side of the top of the mounting bracket 1, the bottom of the mounting bracket 1 is fixedly connected with a third bracket 12, the other end of the steel wire rope 52 is fixedly connected with the third bracket 12, the bottom of the mounting bracket 1 is fixedly mounted with a motor 23, the other side of the bottom of the mounting bracket 1 is fixedly mounted with a second mounting bracket 11, the motor 23 is fixedly mounted on the second mounting bracket 11, an output shaft of the motor 23 is in transmission connection with a main belt pulley 24, the main belt pulley 24 is in transmission connection with the driven wheel 21 through a belt 22, and the belt 22 is fixedly connected with the bottom plate;
the motor 23 drives the main belt wheel 24 to rotate reversely to drive the belt 22 to rotate synchronously, the connecting mechanism 7 moves upwards along with the belt 22 in the vertical direction, the purpose of moving the bottom plate 4 upwards on the guide rail 3 is achieved, and in the same way, the motor 23 drives the main belt wheel 24 to rotate forwards, so that the bottom plate 4 moves downwards on the guide rail 3.
Referring to fig. 1 and 3, the connecting mechanism 7 includes a connecting frame 73 fixedly connected to one side of the bottom plate 4, two fixing frames 72 are fixedly connected to one side of the connecting frame 73, the belt 22 passes through the fixing frames 72, fixing clips 71 for fixing the belt 22 to the fixing frames 72 are fixedly connected to the fixing frames 72, and are in threaded connection with the fixing frames 72 after passing through the fixing clips 71 and the belt 22 through screws, and the fixing frames 72, the connecting frame 73 and the bottom plate 4 are fixedly connected through screws, so that the bottom plate 4 is driven to move on the guide rail 3 through the movement of the belt 22.
Referring to fig. 1-3, the top and bottom of the bottom plate 4 are fixedly connected with a first bracket 10, a first slider 55 located at the lowest end of the first guide pillar 54 is fixedly connected with a second bracket 13, and a buffer mechanism 6 is installed between the first bracket 10 and the second bracket 13;
the buffer mechanism 6 comprises a second guide post 62 fixedly connected between the first brackets 10, the second guide post 62 penetrates through the second bracket 13, a spring 61 is sleeved on the second guide post 62, the top of the spring 61 is in elastic contact with the first bracket 10 positioned at the top of the bottom plate 4, and the bottom of the spring 61 is in elastic contact with the second bracket 13;
when the first sliding block 55 located at the bottommost end of the first guide pillar 54 ascends, the second bracket 13 is driven to extrude the spring 61 to ascend synchronously, at the moment, due to the elastic action of the spring 61, a buffering effect is achieved on the opening of the door, the safety of the shield door is improved, and when the first sliding block 55 located at the bottommost end of the first guide pillar 54 descends, the spring 61 applies downward pressure to the second bracket 13 to push the first sliding block 55 at the bottommost end to move downwards, the scissor mechanism 51 moves downwards and unfolds and drives the other three first sliding blocks 55 to move downwards synchronously, and the shield door is closed.
The working principle is as follows: in use, first, opening of the screen door: the main belt wheel 24 is driven by the motor 23 to rotate reversely to drive the belt 22 to rotate synchronously, the connecting mechanism 7 moves upwards along with the belt 22 in the vertical direction to drive the bottom plate 4 to move upwards on the guide rail 3, and as the length of the steel wire rope 52 is fixed and the steel wire rope 52 rotates through the fixed pulley 53, the other end of the steel wire rope 52 drives the first slide block 55 at the lowest end of the first guide pillar 54 to move upwards to drive the scissor fork mechanism 51 to fold upwards, so that the other three first slide blocks 55 move upwards synchronously in the vertical direction, wherein the lifting platform consists of two lifting platform door mechanisms, the first slide blocks 55 on the same horizontal plane are fixedly connected through steel wire ropes, along with the movement of the four first slide blocks 55, the steel wire ropes are combined and ascend synchronously to open the shielding door, wherein, when the first slide block 55 at the lowest end of the first guide pillar 54 ascends, the second bracket 13 is driven to extrude the spring 61 to rise synchronously, and at the moment, due to the elastic action of the spring 61, the opening of the door is buffered, so that the safety of the shielding door is improved;
closing of the shielding door: similarly, the motor 23 drives the main belt pulley 24 to rotate forward to drive the belt 22 to rotate synchronously, the connecting mechanism 7 moves downward along with the belt 22 in the vertical direction to further drive the bottom plate 4 to move downward on the guide rail 3, the steel wire rope 52 is loosened, under the action of gravity, the first sliding block 55 at the lowest end of the first guide pillar 54 slides downward, meanwhile, the spring 61 applies downward pressure to the second support 13 to further push the first sliding block 55 at the lowest end to move downward, the fork shearing mechanism 51 moves downward to expand, and drives the other three first sliding blocks 55 and the steel wire rope to move downward synchronously to close the shielding door.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A lifting platform door mechanism comprises a mounting bracket (1), and is characterized in that a guide rail (3) is fixedly mounted on the mounting bracket (1), a bottom plate (4) is connected onto the guide rail (3) in a sliding manner, mounting seats (9) are fixedly connected between the top and the bottom of the bottom plate (4), and a lifting mechanism (5) for driving a platform door to move in the vertical direction is mounted between the mounting seats (9);
the lifting mechanism (5) comprises a group of first guide posts (54) fixedly connected between the mounting seats (9), the first guide post (54) is connected with four first sliding blocks (55) in a sliding way, a scissor mechanism (51) is rotatably arranged on the mounting seat (9) positioned at the top of the mounting bracket (1), the free end of the bottom of the scissor mechanism (51) is rotationally connected with a first slide block (55) positioned at the bottommost end of a first guide post (54), the middle section of the scissors mechanism (51) is in running fit with the other three first sliding blocks (55), the top of the mounting seat (9) is rotatably provided with a fixed pulley (53), the fixed pulley (53) is wound and connected with a steel wire rope (52), one end of the steel wire rope (52) is fixedly connected to a first sliding block (55) positioned at the bottommost end of the first guide post (54), the other end of the steel wire rope (52) is fixedly connected to the mounting bracket (1);
and a driving mechanism (2) is installed on the other side of the mounting bracket (1), and the driving mechanism (2) is fixedly connected with the bottom plate (4) through a connecting mechanism (7).
2. The lifting platform door mechanism as claimed in claim 1, wherein the driving mechanism (2) comprises a driven wheel (21) rotatably mounted on one side of the top of the mounting bracket (1), a motor (23) is fixedly mounted at the bottom of the mounting bracket (1), an output shaft of the motor (23) is in transmission connection with a main belt wheel (24), the main belt wheel (24) and the driven wheel (21) are in transmission connection through a belt (22), and the belt (22) is fixedly connected with the bottom plate (4) through a connecting mechanism (7).
3. The lifting platform door mechanism according to claim 2, wherein the connecting mechanism (7) comprises a connecting frame (73) fixedly connected to one side of the bottom plate (4), two fixing frames (72) are fixedly connected to one side of the connecting frame (73), the belt (22) passes through the fixing frames (72), and fixing clips (71) for fixing the belt (22) on the fixing frames (72) are fixedly connected to the fixing frames (72).
4. The lifting platform door mechanism according to claim 1, wherein the guide rail (3) is provided with a sliding groove, and a second sliding block (14) slidably connected with the sliding groove is fixedly arranged on one side of the bottom plate (4).
5. The elevating platform door mechanism according to claim 1, wherein the scissor mechanism (51) is formed by assembling 28 connecting rods in a staggered manner, the joints of the adjacent connecting rods are rotatably connected through a rotating shaft, and the four first sliding blocks (55) are equidistantly distributed on the scissor mechanism (51).
6. The elevating platform door mechanism according to claim 1, wherein a first bracket (10) is fixedly connected to both the top and bottom of the base plate (4), a second bracket (13) is fixedly connected to the first slider (55) at the lowest end of the first guide post (54), and a buffer mechanism (6) is installed between the first bracket (10) and the second bracket (13).
7. The elevating platform door mechanism according to claim 6, wherein the buffer mechanism (6) comprises a second guide post (62) fixedly connected between the first brackets (10), the second guide post (62) passes through the second bracket (13), a spring (61) is sleeved on the second guide post (62), the top of the spring (61) is in elastic contact with the first bracket (10) at the top of the bottom plate (4), and the bottom of the spring (61) is in elastic contact with the second bracket (13).
8. The elevating platform door mechanism according to claim 1, wherein a third bracket (12) is fixedly connected to the bottom of the mounting bracket (1), and the other end of the wire rope (52) is fixedly connected to the third bracket (12).
9. The elevating platform door mechanism according to claim 2, wherein a first mounting bracket (8) is fixedly mounted on the top side of the mounting bracket (1), and the driven wheel (21) is rotatably mounted on the first mounting bracket (8).
10. The elevating platform door mechanism according to claim 2, wherein a second mounting bracket (11) is fixedly mounted on the other side of the bottom of the mounting bracket (1), and the motor (23) is fixedly mounted on the second mounting bracket (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110361241.9A CN113047761B (en) | 2021-04-02 | 2021-04-02 | Lifting platform door mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110361241.9A CN113047761B (en) | 2021-04-02 | 2021-04-02 | Lifting platform door mechanism |
Publications (2)
| Publication Number | Publication Date |
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| CN113047761A true CN113047761A (en) | 2021-06-29 |
| CN113047761B CN113047761B (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110361241.9A Active CN113047761B (en) | 2021-04-02 | 2021-04-02 | Lifting platform door mechanism |
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| Country | Link |
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| CN (1) | CN113047761B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116476870A (en) * | 2023-04-24 | 2023-07-25 | 山西大秦天创科技有限公司 | Intelligent safety protection system for platform |
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| US20140047994A1 (en) * | 2011-03-01 | 2014-02-20 | Skd Hi-Tec Co., Ltd | Train Platform Safety Device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116476870A (en) * | 2023-04-24 | 2023-07-25 | 山西大秦天创科技有限公司 | Intelligent safety protection system for platform |
| CN116476870B (en) * | 2023-04-24 | 2024-05-28 | 山西大秦天创科技有限公司 | Intelligent safety protection system for platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113047761B (en) | 2022-07-01 |
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