Driving mechanism of rail transit safety door
Through the improved driving mechanism design, the coordination of the motor and anti-bias balls is used to solve the problem of center of gravity shift during the sliding of the rail transit safety door, and the stability is improved and the service life is extended.
Patent Information
- Application Number
- CN202422493577.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-15
AI Technical Summary
In the prior art, the center of gravity of the rail transit safety door is offset during sliding, resulting in uneven stress and severe wear, affecting service life and increasing maintenance costs.
The driving mechanism design includes a motor, threaded rod, connecting plate, connecting seat, limit wheel and anti-bias ball, is designed to drive the connection plate and connecting seat to move through the motor, and roll in the limit groove with the limit wheel and anti-bias ball, supporting the movement of the connecting seat to avoid the center of gravity offset and reducing wear of the guide support rail.
Improves the stability of safety doors, extends service life and reduces maintenance costs.
Smart Images
Figure CN223256715U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of safety door driving mechanisms, in particular to a driving mechanism for a rail transit safety door. Background Art
[0002] Rail transit safety doors are an important traffic safety facility. They are installed between rail transit stations and train cars to protect the safety of passengers. Rail transit safety doors, also known as subway safety doors, are a facility that integrates disciplines such as architecture, machinery, materials, electronics and information. They are installed at the edge of the rail transit station platform to isolate the track from the platform area. They are equipped with safety doors that correspond one to one with the train doors, and can achieve multi-level control of opening and closing.
[0003] In the existing technology, when the safety door slides along the sliding support rail, the center of gravity of the safety door will shift, causing the sliding support rail to be severely worn due to uneven force, which can easily lead to the safety door being unable to be used normally, shortening the service life of the rail transit safety door and increasing the subsequent maintenance costs.
[0004] Therefore, it is necessary to provide a driving mechanism for a rail transit safety door to solve the above technical problems. Utility Model Content
[0005] The utility model provides a driving mechanism for a rail transit safety door, which solves the problem in the prior art that the center of gravity of the safety door deviates to the side of the subway track when the safety door slides along a sliding support guide rail.
[0006] In order to solve the above technical problems, the utility model provides a driving mechanism for a rail transit safety door, comprising a housing box, wherein both sides of the rear end of the inner wall of the housing box are fixedly connected to a motor, the output shaft of the motor is fixedly connected to a threaded rod, the surface of the threaded rod is threadedly connected to a threaded sleeve, the surface of the threaded sleeve is fixedly connected to a connecting plate, a connecting seat is vertically fixedly connected between the two connecting plates, and the top of the connecting seat movably extends to the outside of the housing box;
[0007] The bottom of the connecting seat is fixedly connected to a plurality of bases, both sides of the base are rotatably connected to limit wheels, both sides of the bottom of the inner wall of the storage box are fixedly connected to bases adapted to the limit wheels, both sides of the top of the inner wall of the storage box are fixedly connected to horizontal plates, and both side surfaces of the connecting seat are rotatably connected to a plurality of anti-deflection balls, and the surface of the horizontal plate is provided with a limiting groove adapted to the anti-deflection balls.
[0008] Preferably, a sliding block is fixedly connected to the surface of the threaded sleeve, and sliding grooves adapted to the sliding block are provided on both sides of the inner wall of the accommodating box.
[0009] Preferably, a plurality of reinforcing ribs are fixedly connected between the inner end of the surface of the connecting plate and the side wall of the connecting seat, and the plurality of reinforcing ribs are evenly spaced and arranged along the surface of the connecting plate.
[0010] Preferably, a plurality of fixing seats are fixedly connected to both side surfaces of the connecting seat, and the plurality of fixing seats correspond one-to-one to the plurality of anti-deviation balls, and the anti-deviation balls are rotatably connected to the interior of the fixing seats.
[0011] Preferably, a movable opening for the connection seat to move is opened laterally on the top of the storage box.
[0012] Preferably, protective brushes are fixedly connected to both sides of the inner wall of the movable opening.
[0013] Compared with related technologies, the driving mechanism of the rail transit safety door provided by the present invention has the following beneficial effects:
[0014] The utility model provides a driving mechanism for a rail transit safety door. After the two motors are working, the two connecting plates can be driven to move together. After the two connecting plates drive the connecting seat to move, the safety door can be opened and closed. During the opening and closing process, the limiting wheels are supported and limited by the two guide support rails, and the anti-deviation ball rolls inside the limiting groove to strengthen the support during the movement of the connecting seat, thereby preventing the center of gravity of the safety door from shifting, causing the guide support rails to be severely worn due to uneven force, thereby improving the stability of the safety door during use, extending the service life of the rail transit safety door, and reducing the later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic structural diagram of a preferred embodiment of the driving mechanism of a rail transit safety door provided by the present utility model;
[0016] Figure 2 for Figure 1 A local enlarged view of point A shown in the figure;
[0017] Figure 3 for Figure 1 The diagram shows the structure of the movable opening and the protective brush.
[0018] Numbers in the figure: 1. accommodating box; 2. motor; 3. threaded rod; 4. threaded sleeve; 5. connecting plate; 6. connecting seat; 7. movable opening; 8. reinforcing rib; 9. cross plate; 10. limiting groove; 11. fixing seat; 12. anti-deviation ball; 13. base; 14. limiting wheel; 15. guide support rail; 16. protective brush; 17. sliding block; 18. sliding groove. DETAILED DESCRIPTION
[0019] The present invention will be further described below with reference to the accompanying drawings and implementation examples.
[0020] Please refer to Figure 1 、 Figure 2 and Figure 3 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the driving mechanism of a rail transit safety door provided by the present utility model; Figure 2 for Figure 1 A local enlarged view of point A shown in the figure; Figure 3 for Figure 1 The driving mechanism of the rail transit safety door comprises a housing box 1, a motor 2 is fixedly connected to both sides of the rear end of the inner wall of the housing box 1, and a threaded rod 3 is fixedly connected to the output shaft of the motor 2.
[0021] The surface of the threaded rod 3 is threadedly connected to a threaded sleeve 4, the surface of the threaded sleeve 4 is fixedly connected to a connecting plate 5, a connecting seat 6 is vertically fixedly connected between the two connecting plates 5, and the top of the connecting seat 6 is movably extended to the outside of the storage box 1.
[0022] The bottom of the connecting seat 6 is fixedly connected to a plurality of bases 13 , both sides of the base 13 are rotatably connected to limit wheels 14 , and both sides of the bottom of the inner wall of the storage box 1 are fixedly connected to bases 13 adapted to the limit wheels 14 .
[0023] Both sides of the top of the inner wall of the storage box 1 are fixedly connected with horizontal plates 9, and both side surfaces of the connecting seat 6 are rotatably connected with a number of anti-deflection balls 12. The surface of the horizontal plate 9 is provided with a limiting groove 10 adapted to the anti-deflection balls 12.
[0024] After the two motors 2 start working, they can drive the two connecting plates 5 to move together. After the two connecting plates 5 drive the connecting seat 6 to move, the safety door can be opened and closed.
[0025] During the switching process, the limiting wheel 14 is supported and limited by the two guide support rails 15, and the anti-deviation ball 12 rolls inside the limiting groove 10, so as to strengthen the support of the connecting seat 6 during the movement, thereby preventing the center of gravity of the safety door from shifting, causing the guide support rail 15 to be severely worn due to uneven force.
[0026] Improve the stability of safety doors during use, extend the service life of rail transit safety doors, and reduce subsequent maintenance costs.
[0027] A sliding block 17 is fixedly connected to the surface of the threaded sleeve 4 , and sliding grooves 18 adapted to the sliding block 17 are formed on both sides of the inner wall of the receiving box 1 .
[0028] When the threaded sleeve 4 moves along the surface of the threaded rod 3 , the sliding block 17 is driven to slide in the sliding groove 18 , thereby improving the smoothness and stability of the threaded sleeve 4 during movement.
[0029] A plurality of reinforcing ribs 8 are fixedly connected between the inner end of the surface of the connecting plate 5 and the side wall of the connecting seat 6 . The plurality of reinforcing ribs 8 are evenly spaced and arranged along the surface of the connecting plate 5 .
[0030] The plurality of reinforcing ribs 8 strengthen the connection strength between the connecting plate 5 and the connecting seat 6 , thereby improving the stability during the movement of the driving connecting seat 6 .
[0031] A plurality of fixing seats 11 are fixedly connected to both side surfaces of the connecting seat 6 . The fixing seats 11 correspond one to one with the anti-deflection balls 12 . The anti-deflection balls 12 are rotatably connected to the interior of the fixing seats 11 .
[0032] A movable opening 7 for the connection seat 6 to move is horizontally opened on the top of the storage box 1 , and protective brushes 16 are fixedly connected to both sides of the inner wall of the movable opening 7 .
[0033] The protective brush 16 reduces the amount of impurities that enter the inner cavity of the containing box 1, prevents larger impurities from entering the inner cavity of the containing box 1, and improves the operational stability of the mechanism.
[0034] The working principle of the driving mechanism of the rail transit safety door provided by the utility model is as follows:
[0035] After the two motors 2 drive the threaded rod 3 to rotate, the threaded sleeve 4 can be driven to move, and the two connecting plates 5 can be driven to move together. After the two connecting plates 5 drive the connecting seat 6 to move, the safety door can be opened and closed. During the switching process, the limiting wheel 14 is supported and limited by the two guide support rails 15, and the anti-deviation ball 12 rolls inside the limiting groove 10, so as to strengthen the support during the movement of the connecting seat 6, thereby preventing the center of gravity of the safety door from shifting, causing the guide support rail 15 to be severely worn due to uneven force.
[0036] Compared with related technologies, the driving mechanism of the rail transit safety door provided by the present invention has the following beneficial effects:
[0037] After the two motors 2 work, they can drive the two connecting plates 5 to move together. After the two connecting plates 5 drive the connecting seat 6 to move, the safety door can be opened and closed. During the opening and closing process, the limiting wheels 14 are supported and limited by the two guide support rails 15, and the anti-deviation ball 12 rolls inside the limiting groove 10, so as to strengthen the support during the movement of the connecting seat 6, thereby preventing the center of gravity of the safety door from shifting, causing the guide support rail 15 to be severely worn due to uneven force, thereby improving the stability of the safety door during use, extending the service life of the rail transit safety door, and reducing the later maintenance cost.
[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A driving mechanism for a rail transit safety door, comprising a housing box (1), characterized in that: The rear end of the inner wall of the receiving box (1) is fixedly connected to a motor (2) on both sides, the output shaft of the motor (2) is fixedly connected to a threaded rod (3), the surface of the threaded rod (3) is threadedly connected to a threaded sleeve (4), the surface of the threaded sleeve (4) is fixedly connected to a connecting plate (5), a connecting seat (6) is vertically fixedly connected between the two connecting plates (5), and the top of the connecting seat (6) is movably extended to the outside of the receiving box (1); The bottom of the connecting seat (6) is fixedly connected to a plurality of bases (13), both sides of the base (13) are rotatably connected to limit wheels (14), both sides of the bottom of the inner wall of the storage box (1) are fixedly connected to bases (13) adapted to the limit wheels (14), both sides of the top of the inner wall of the storage box (1) are fixedly connected to transverse plates (9), both side surfaces of the connecting seat (6) are rotatably connected to a plurality of anti-deflection balls (12), and the surface of the transverse plate (9) is provided with a limit groove (10) adapted to the anti-deflection balls (12).
2. The driving mechanism of the rail transit safety door according to claim 1, characterized in that: A sliding block (17) is fixedly connected to the surface of the threaded sleeve (4), and sliding grooves (18) adapted to the sliding block (17) are provided on both sides of the inner wall of the accommodating box (1).
3. The driving mechanism of the rail transit safety door according to claim 1, characterized in that: A plurality of reinforcing ribs (8) are fixedly connected between the inner end of the surface of the connecting plate (5) and the side wall of the connecting seat (6), and the plurality of reinforcing ribs (8) are evenly spaced and arranged along the surface of the connecting plate (5).
4. The driving mechanism of the rail transit safety door according to claim 1, characterized in that: Both sides of the connecting seat (6) are fixedly connected to a plurality of fixing seats (11), and the plurality of fixing seats (11) correspond one to one with the plurality of anti-deflection balls (12), and the anti-deflection balls (12) are rotatably connected to the interior of the fixing seats (11).
5. The driving mechanism of the rail transit safety door according to claim 1, characterized in that: A movable opening (7) for the connection seat (6) to move is provided laterally on the top of the storage box (1).
6. The driving mechanism of the rail transit safety door according to claim 5, characterized in that: Protective brushes (16) are fixedly connected to both sides of the inner wall of the movable opening (7).