A sliding plug door drive and locking integrated device

Abstract

The present invention discloses a combined driving and locking device for a sliding plug door, which includes a rotating column, a driving motor, a rack, and a plurality of locking plates fixed on a vehicle body. The output end of the driving motor is rotatably provided with a driving gear for driving the rack. The rack is provided with a sliding groove. A rotating plate is fixedly arranged on the rotating column. A plurality of rollers for rolling in the sliding groove are rotatably arranged on the rotating plate. The rotating plate and the sliding groove are connected by rolling of the rollers. A locking opening is arranged on the locking plate. A plurality of locking gears corresponding to the positions of the locking plates are fixedly arranged on the rotating column. The locking gears are provided with locking pieces for cooperating with the locking opening for locking. The purpose of the present invention is to provide a combined driving and locking device for a sliding plug door with a simple structure, small occupied space, light overall mass, low energy consumption, and reliable transmission.

Description

Technical Field

[0001] The present invention relates to a plug and slide door structure, and particularly to a plug and slide door drive and locking integrated device. Background Art

[0002] As the name implies, a plug and slide door is a door that performs plugging and pulling actions respectively during the opening and closing processes. Plug and slide doors are widely used in the car bodies of passenger trains and rail transit. When the plug and slide door is in the closed state, its outer end face is flush with the outer skin of the car body, and when the plug and slide door is opened, it overlaps with the car body.

[0003] The drive device of the traditional plug and slide door is arranged on the top of the car body, and transmission parts such as lead screws are used to drive the plug and slide door to perform plugging and pulling actions. This setting requires a large number of accessory parts, resulting in a large overall mass of the plug and slide door, and special lifting tools are required for installation, occupying a large amount of roof space; while the locking device of the plug and slide door is usually arranged on the side of the plug and slide door, and an additional power source is required to provide power for the locking of the plug and slide door. Therefore, the entire drive system and locking system are complex in structure, heavy in weight, and high in failure rate. During the driving process of the vehicle, power needs to be continuously provided to the locking system to maintain the locked state of the door, resulting in waste of energy. Summary of the Invention

[0004] Object of the Invention: The object of the present invention is to provide a plug and slide door drive and locking integrated device with simple structure, small occupied space, light overall mass, low energy consumption, and reliable transmission.

[0005] Technical Solution: A plug and slide door drive and locking integrated device according to the present invention includes a rotating column, a driving motor, a rack, and a plurality of locking plates fixed on the car body. The driving motor does not necessarily need to be fixedly arranged on the rotating column, as long as the output end of the driving motor corresponds to the rack. A driving gear for driving the rack is rotatably arranged at the output end of the driving motor. A chute is opened on the rack, and a rotating plate is fixedly arranged on the rotating column. A plurality of rollers for rolling in the chute are rotatably arranged on the rotating plate, and the rotating plate and the chute are connected by rolling of the rollers; a locking port is arranged on the locking plate, and a plurality of locking gears corresponding to the positions of the locking plates are fixedly arranged on the rotating column. The locking gears are provided with locking pieces for cooperating with the locking ports for locking. During the process of the driving motor rotating to drive the plug and slide door to close, the plug and slide door will drive the rack to move away from the rotating column, and the distance between the rack and the rotating column becomes larger. Therefore, the rack drives the rotating column to rotate through the rollers and the rotating plate, and the rotating column drives the locking gears to rotate until the locking gears are locked with the locking plates, preventing the plug and slide door from being opened by external forces.

[0006] Furthermore, an in-place cam is fixedly arranged on the rotating column, and an in-place switch corresponding to the in-place cam is fixedly arranged on the car body.

[0007] Further, a baffle is fixedly arranged on the rotating column, and an external vehicle lock corresponding to the baffle is fixedly arranged on the vehicle body. The external vehicle lock is used for an operator to lock the baffle outside the vehicle body, thereby locking the rotating column to prevent the rotating column from rotating.

[0008] Further, a plurality of pressing wheels for pressing the plug door are fixedly arranged on the rotating column, and a plurality of pressing plates corresponding to the pressing wheels are arranged on the plug door. The pressing plates can be regarded as an extension of the plug door.

[0009] Further, a transmission gear for transmission is rotatably arranged between the driving gear and the rack.

[0010] Beneficial effects: Compared with the prior art, the present invention has the following advantages: The driving device and the locking device of the plug door of the present invention are integrated. When driving the plug door to move, the locking device is simultaneously driven to work. The locking device does not require additional energy supply. Therefore, compared with the traditional structure, the present invention has a simple structure, occupies a small space, has a light overall mass, consumes less energy, and has reliable transmission. Description of the Drawings

[0011] Figure 1 is a three-dimensional view of the combination of the present invention and the plug door;

[0012] Figure 2 is Figure 1 an enlarged view at A;

[0013] Figure 3 is Figure 1 an enlarged view at B;

[0014] Figure 4 is a cross-sectional view of the combination of the rack and the rotating plate in the present invention;

[0015] Figure 5 is a schematic diagram of the locking plate and the locking gear in the locked state in the present invention.

[0016] Wherein: 1, fixed seat; 2, rotating column; 3, plug door; 4, rack; 41, chute; 5, locking gear; 51, locking piece; 6, locking plate; 61, locking opening; 7, pressing wheel; 8, pressing plate; 9, rotating plate; 91, roller; 10, transmission gear; 11, driving gear; 12, driving motor; 13, baffle; 14, external vehicle lock; 15, in-place switch; 16, in-place cam. Detailed Embodiments

[0017] The technical solution of the present invention will be further described below with reference to the drawings.

[0018] See the attached Figures 1 to 5, a driving and locking integrated device for a sliding plug door 3 shown in the present invention, the fixed seat 1 is fixedly connected to the roof (not shown), the upper and lower ends of the rotating column 2 are respectively rotatably connected to the fixed seat 1 and the vehicle floor (not shown), a rack 4 is fixedly arranged on the inner side of the sliding plug door 3, a chute 41 is formed in the rack 4, a driving motor 12 is fixedly arranged on the rotating column 2, a driving gear 11 for driving transmission with the rack 4 is rotatably arranged at the output end of the driving motor 12, a transmission gear 10 for transmission is rotatably arranged between the driving gear 11 and the rack 4, a rotating plate 9 is fixedly arranged on the rotating column 2, two rollers 91 for rolling in the chute 41 are rotatably arranged on the rotating plate 9, and the rotating plate 9 and the chute 41 are connected by rolling through the rollers 91; three locking plates 6 are arranged on the vehicle body from top to bottom, locking openings 61 are arranged on the locking plates 6, three locking gears 5 corresponding to the positions of the locking plates 6 are fixedly arranged on the rotating column 2, and locking pieces 51 for cooperating with the locking openings 61 for locking are arranged on the locking gears 5; a positioning cam 16 is fixedly arranged at one end of the rotating column 2 close to the fixed seat 1, and a positioning switch 15 corresponding to the positioning cam 16 is fixedly arranged at the bottom of the fixed seat 1; a baffle 13 is fixedly arranged on the rotating column 2, and an external lock 14 corresponding to the baffle 13 is fixedly arranged on the vehicle body; two pressing plates 8 are fixedly arranged on the sliding plug door 3 from top to bottom in sequence, and two pressing wheels 7 for pressing the pressing plates 8 are fixedly arranged on the rotating column 2.

Claims

1. A driving and locking integrated device for a sliding plug door, characterized in that: It includes a rotating column (2), a driving motor (12), a rack (4) and a number of locking plates (6) fixed on the vehicle body. The output end of the driving motor (12) is rotatably provided with a driving gear (11) for driving the rack (4). A sliding groove (41) is formed in the rack (4). A rotating plate (9) is fixedly arranged on the rotating column (2). A number of rollers (91) for rolling in the sliding groove (41) are rotatably arranged on the rotating plate (9). The rotating plate (9) and the sliding groove (41) are connected by rolling of the rollers (91). A locking opening (61) is arranged on the locking plate (6). A number of locking gears (5) corresponding to the positions of the locking plates (6) are fixedly arranged on the rotating column (2). The locking gears (5) are provided with locking pieces (51) for cooperating with the locking opening (61) for locking.

2. The integrated driving and locking device for a sliding plug door according to claim 1, characterized in that: The rotating column is fixedly provided with a position-in-place cam (16), and a position-in-place switch (15) corresponding to the position-in-place cam (16) is fixedly arranged on the vehicle body.

3. The integrated driving and locking device for a sliding plug door according to claim 1, characterized in that: A baffle (13) is fixedly arranged on the rotating column (2), and an external vehicle lock (14) corresponding to the baffle (13) is fixedly arranged on the vehicle body.

4. The integrated driving and locking device for a sliding plug door according to claim 1, characterized in that: A number of pressing wheels (7) are fixedly arranged on the rotating column.

5. The integrated driving and locking device for a sliding plug door according to claim 1, wherein: A transmission gear (10) for transmission is rotatably arranged between the driving gear (11) and the rack (4).

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