An in-built sliding plug door

Abstract

The present invention discloses an in-built sliding plug door. A first guide rail and a second guide rail are fixedly arranged above the sliding door. The cross-sections of the first guide rail and the second guide rail are in the shape of C-shaped grooves. The included angle between the first parallel rail and the first plug rail is smaller than the included angle between the second parallel rail and the second plug rail. The sliding door is respectively and rotatably connected with the first guide rail and the second guide rail through a guiding and bearing assembly; a rack is fixedly arranged on the inner side of the sliding door, a driving gear is rotatably arranged at the output end of a driving motor, a sliding groove is formed in the rack, a rotating plate is fixedly arranged on a rotating column, and the rotating plate and the sliding groove are rotatably connected through rollers; a plurality of locking gears corresponding to the positions of locking plates are fixedly arranged on the rotating column. The purpose of the present invention is to provide a sliding plug door with a simple structure, small occupied space, light overall mass and high reliability.

Description

Technical Field

[0001] The present invention relates to a plug and slide door structure, and particularly to an in-built plug and slide door. 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 surface 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] For traditional plug and slide doors to achieve their plug and slide functions, their driving devices, locking devices, guiding devices, and bearing devices are designed separately. This results in a large number of components in the overall plug and slide door system, a relatively large overall mass, and the need for special lifting tools to install it on the car body. This makes the plug and slide door occupy a large amount of car body space, increases the overall mass of the carriage and the vehicle manufacturing cost. The large-mass car body structure also increases the energy consumption during vehicle operation, and the complex structure leads to relatively poor reliability and high failure rate of the overall plug and slide door. Summary of the Invention

[0004] Object of the Invention: The object of the present invention is to provide a plug and slide door with a simple structure, small occupied space, light overall mass, and high reliability.

[0005] Technical Solution: An in-built plug and slide door according to the present invention includes a sliding door, a rotating column, a driving motor, and a plurality of locking plates fixed on the car body. A first guide rail and a second guide rail are fixedly arranged above the sliding door. The cross-sections of the first guide rail and the second guide rail are in the shape of a C-shaped groove. The first guide rail includes a first parallel rail and a first plug and slide rail, and the second guide rail includes a second parallel rail and a second plug and slide rail. The included angle between the first parallel rail and the first plug and slide rail is smaller than the included angle between the second parallel rail and the second plug and slide rail. The sliding door is respectively connected to the first guide rail and the second guide rail through a guiding and bearing assembly in a rolling manner; a rack is fixedly arranged inside the sliding door. 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 provided 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. The rotating plate and the chute are connected through the rolling of the rollers; a locking opening is provided 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 opening 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 will drive the rotating column to rotate, and the rotating column drives the locking gear to rotate until the locking gear is locked with the locking plate, preventing the plug and slide door from being opened under external force.

[0006] Further, the included angle between the first parallel rail and the first telescopic rail is 80° to 100°, and the included angle between the second parallel rail and the second telescopic rail is 125° to 145°.

[0007] Further, the first guide rail includes a first parallel rail, a first curved rail, and a first telescopic rail. One end of the first telescopic rail is connected to the first parallel rail through the first curved rail. The second guide rail includes a second parallel rail, a second curved rail, and a second telescopic rail. One end of the second telescopic rail is connected to the second parallel rail through the second curved rail.

[0008] Further, the guiding and bearing assembly includes a guiding and bearing bracket. A plurality of guiding wheels for rolling in the inner cavity of the first guide rail or the second guide rail are arranged at the top of the guiding and bearing bracket, and a plurality of bearing wheels for rolling on the bottom wall of the inner cavity of the first guide rail or the second guide rail are arranged on the guiding and bearing bracket.

[0009] Further, anti-jump wheels corresponding to the bottom end face of the first guide rail or the second guide rail are arranged on the guiding and bearing bracket to prevent the guiding and bearing assembly from jumping off during the rolling process.

[0010] Further, a connecting column for connecting the telescopic door is arranged at the bottom of the guiding and bearing bracket, and a connecting hole for connecting with the telescopic door is formed in the connecting column.

[0011] Further, a bottom rail arranged on the bottom surface is also included. The bottom rail includes a bottom parallel rail and a bottom telescopic rail. One end of the bottom telescopic rail is connected to the bottom parallel rail through a bottom curved rail. The included angle between the bottom telescopic rail and the bottom parallel rail is the same as the included angle between the second parallel rail and the second telescopic rail.

[0012] Further, a position cam is fixedly arranged on the rotating column, and a position switch corresponding to the position cam is fixedly arranged on the vehicle body.

[0013] 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 the staff to operate outside the vehicle body to lock the baffle, thereby locking the rotating column to prevent the rotating column from rotating. [[ID=2,4]]

[0014] Further, a plurality of pressing wheels for pressing the telescopic door are fixedly arranged on the rotating column, and a plurality of pressing plates corresponding to the pressing wheels are arranged on the moving door. The pressing plates can be regarded as an extension of the moving door.

[0015] Further, a transmission gear for transmission is rotatably arranged between the driving gear and the rack.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following advantages: Since the guiding device and the bearing device of the present invention are integrally designed, and the driving device and the locking device are integrally designed, compared with the traditional built-in plug door, the present invention uses fewer components. Therefore, the present invention has a simple structure, occupies a small space, has a light overall weight, and is reliable. Description of the Drawings

[0017] [[ID=*5]] Figure 1 is a perspective view of the present invention;

[0018] Figure 2 is a combined top view of the first guide rail and the second guide rail;

[0019] Figure 3 is a schematic diagram of the connection between the second guide rail and the guiding and bearing assembly in the present invention;

[0020] Figure 4 is a schematic structural diagram of the guiding and bearing assembly in the present invention;

[0021] Figure 5 is a top view schematic diagram of the moving door connected to the first guide rail and the second guide rail in the door opening state;

[0022] Figure 6 is a top view schematic diagram when the left end of the moving door just enters the first curved rail;

[0023] Figure 7 is a top view schematic diagram of the moving door connected to the first guide rail and the second guide rail in the door closing state;

[0024] Figure 8 is Figure 1 an enlarged view at A;

[0025] Figure 9 is Figure 1 an enlarged view at B;

[0026] Figure 10 is Figure 1 an enlarged view at C;

[0027] Figure 11 is a cross-sectional view of the combination of the rack and the rotating plate in the present invention;

[0028] Figure 12 is a schematic diagram of the locking plate and the locking gear in the locked state in the present invention.

[0029] Wherein: 1. First guide rail; 101. First parallel rail; 102. First curved rail; 103. First telescopic rail; 2. Second guide rail; 201. Second parallel rail; 202. Second curved rail; 203. Second telescopic rail; 3. Guide and bearing assembly; 301. Guide wheel; 302. Bearing wheel; 303. Anti-jump wheel; 304. Connecting column; 305. Guide and bearing bracket; 4. Connecting plate; 5. Sliding door; 6. Rack; 61. Chute; 7. Bottom rail; 71. Bottom parallel rail; 72. Bottom curved rail; 73. Bottom telescopic rail; 8. Rotating column; 9. Fixed seat; 10. In-place switch; 11. In-place cam; 12. Locking gear; 121. Locking piece; 13. Locking plate; 131. Locking port; 14. Pressing wheel; 15. Pressing plate; 16. Rotating plate; 161. Roller; 17. Driving gear; 18. Driving gear; 19. Driving motor; 20. Baffle; 21. External lock part of the vehicle. Detailed implementation manners

[0030] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] See the appendix Figures 1 to 12, an in-built plug door according to the present invention comprises a sliding door 5. On the upper part of the sliding door 5, a first guide rail 1 and a second guide rail 2 which are fixedly arranged on the roof (not shown) and are on the same horizontal plane. The cross-sections of the first guide rail 1 and the second guide rail 2 are both in the shape of a C-shaped groove. The first guide rail 1 is composed of a first parallel rail 101, a first curved rail 102 and a first plug rail 103. The included angle between the first parallel rail 101 and the first plug rail 103 is 90°. The second guide rail 2 is composed of a second parallel rail 201, a second curved rail 202 and a second plug rail 203. The included angle between the second parallel rail 201 and the second plug rail 203 is 145°. The guiding and bearing assembly 3 comprises a guiding and bearing bracket 305. The guiding and bearing assembly 3 comprises a guiding and bearing bracket 305. At the top of the guiding and bearing bracket 305, two guiding wheels 301 for rolling in the inner cavity of the guide rail are arranged. The guiding and bearing bracket 305 is provided with a bearing wheel 302 for rolling on the bottom wall of the inner cavity of the guide rail, an anti-jump wheel 303 for preventing jump-off and a connecting column 304 for connecting the plug door. The guiding and bearing assembly 3 is respectively and rotatably connected with the first guide rail 1 or the second guide rail 2 through the guiding wheels 301 and the bearing wheels 302. A connecting hole is formed in the connecting column 304, and a screw passes through the connecting hole to fixedly connect the guiding and bearing assembly 3 with a connecting plate 4 on the sliding door 5. A fixed seat 9 is fixedly connected with the roof (not shown). The upper and lower ends of a rotating column 8 are respectively and rotatably connected with the fixed seat 9 and the vehicle floor (not shown). A rack 6 is fixedly arranged on the inner side of the sliding door 5. A sliding groove 61 is formed in the rack 6. A driving motor 19 is fixedly arranged on the rotating column 8. The output end of the driving motor 19 is rotatably provided with a driving gear 18 for driving with the rack 6. A transmission gear 17 for transmission is rotatably arranged between the driving gear 18 and the rack 6. A rotating plate 16 is fixedly arranged on the rotating column 8. Two rollers 161 for rolling in the sliding groove 61 are rotatably arranged on the rotating plate 16. The rotating plate 16 and the sliding groove 61 are connected by rolling through the rollers 161. Three locking plates 13 are arranged on the vehicle body from top to bottom. A locking opening 131 is arranged on the locking plate 13. Three locking stops 12 corresponding to the positions of the locking plates 13 are fixedly arranged on the rotating column 8. The locking stops 12 are provided with locking pieces 121 for cooperating with the locking openings 131 for locking. One end of the rotating column 8 close to the fixed seat 9 is fixedly provided with an in-place cam 11. An in-place switch 10 corresponding to the in-place cam 11 is fixedly arranged at the bottom of the fixed seat 9. A baffle 20 is fixedly arranged on the rotating column 8. An external vehicle lock 21 corresponding to the baffle 2 is fixedly arranged on the vehicle body. Two pressing plates 15 are fixedly arranged on the sliding door 5 from top to bottom. Two pressing wheels 14 for pressing the pressing plates 15 are fixedly arranged on the rotating column 8.A bottom rail 7 is fixedly arranged at the bottom of the vehicle. The bottom rail 7 includes a bottom parallel rail 71 and a bottom plug rail 73. One end of the bottom plug rail 73 and the bottom parallel rail 71 is connected by a bottom bent rail 72. The included angle between the bottom plug rail 73 and the bottom parallel rail 71 is the same as the included angle between the second parallel rail 201 and the second plug rail 203. A hybrid wheel is arranged at the bottom of the sliding door 5 and is in rolling connection with the bottom rail 7. The distance between the bottom rail 7 and the sliding door 5 can be different from the distance between the second guide rail 2 and the sliding door 5.

[0032] See the appendix Figure 5 , in the open door state, the connection states of the sliding door 5, the first guide rail 1, and the second guide rail 2 are as shown in the figure. When the sliding door 5 needs to be closed, the driving device drives the sliding door 5 to move to the right. See the appendix Figure 6 , when the left end of the door enters the first bent rail 102, the right end of the sliding door 5 has entered the second plug rail 203 for a certain distance. At this time, the sliding door 5 and the rack 6 are inclined at an angle, so the rotating column 8 is driven to rotate. See the appendix Figure 7 , the left end of the sliding door 5 only needs to enter the first plug rail 103 until the sliding door 5 can be closed parallel to the vehicle body. The rotating column 8 is driven by the rack 6 to rotate to the position where the locking gear 12 and the locking plate 13 are locked with each other. The locking of the locking gear 12 and the locking plate 13 with each other can prevent the plug door from being opened under the action of a force parallel to the vehicle body during driving.

Claims

1. An in-built sliding plug door, characterized in that: It includes a sliding door (5), a rotating column (8), a driving motor (19), and several locking plates (13) fixed on the vehicle body. Above the sliding door (5), a first guide rail (1) and a second guide rail (2) are fixedly arranged. The cross-sections of the first guide rail (1) and the second guide rail (2) are in the shape of a C-shaped groove. The first guide rail (1) includes a first parallel rail (101) and a first plug rail (103), and the second guide rail (2) includes a second parallel rail (201) and a second plug rail (203). The included angle between the first parallel rail (101) and the first plug rail (103) is smaller than the included angle between the second parallel rail (201) and the second plug rail (203). The sliding door (5) is rollingly connected to the first guide rail (1) and the second guide rail (2) respectively through a guiding and bearing assembly (3). A rack (6) is fixedly arranged inside the sliding door (5). The output end of the driving motor (19) is rotatably provided with a driving gear (18) for driving the rack (6). A sliding groove (61) is opened on the rack (6). A rotating plate (16) is fixedly arranged on the rotating column (8). Several rollers (161) for rolling in the sliding groove (61) are rotatably arranged on the rotating plate (16). The rotating plate (16) and the sliding groove (61) are rollingly connected through the rollers (161). A locking opening (131) is arranged on the locking plate (13). Several locking stops (12) corresponding to the positions of the locking plates (13) are fixedly arranged on the rotating column (8). The locking stops (12) are provided with locking pieces (121) for cooperating with the locking opening (131) for locking. The rotating column (8) is fixedly provided with a positioning cam (11), and a positioning switch (10) corresponding to the positioning cam (11) is fixedly arranged on the vehicle body. A baffle (20) is fixedly arranged on the rotating column (8), and an external vehicle lock (21) corresponding to the baffle (20) is fixedly arranged on the vehicle body. Several pressing wheels (14) for pressing the plug door are fixedly arranged on the rotating column (8).

2. The built-in plug door according to claim 1, characterized in that: The included angle between the first parallel rail (101) and the first plug rail (103) is 80° - 100°, and the included angle between the second parallel rail (201) and the second plug rail (203) is 125° - 145°.

3. The built-in plug door according to claim 1, characterized in that: The first guide rail (1) includes a first parallel rail (101), a first bent rail (102), and a first plug rail (103). One end of the first plug rail (103) is connected to the first parallel rail (101) through the first bent rail (102). The second guide rail (2) includes a second parallel rail (201), a second bent rail (202), and a second plug rail (203). One end of the second plug rail (203) is connected to the second parallel rail (201) through the second bent rail (202).

4. The built-in plug door according to claim 1, characterized in that: The guiding and bearing assembly (3) includes a guiding and bearing bracket (305). A plurality of guiding wheels (301) for rolling in the inner cavity of the first guide rail (1) or the second guide rail (2) are arranged at the top of the guiding and bearing bracket (305), and a plurality of bearing wheels (302) for rolling on the bottom wall of the inner cavity of the first guide rail (1) or the second guide rail (2) are arranged on the guiding and bearing bracket (305).

5. The built-in plug door according to claim 1, wherein: An anti-jump wheel (303) is arranged on the guiding and bearing bracket (305).

6. The built-in plug door according to claim 1, characterized in that: A connecting column (304) for connecting the plug door is arranged at the bottom of the guiding and bearing bracket (305).

7. The built-in plug door according to claim 1, characterized in that: It further includes a bottom rail (7) arranged on the bottom surface. The bottom rail (7) includes a bottom parallel rail (71) and a bottom plug rail (73). One end of the bottom plug rail (the 73) is connected to the bottom parallel rail (71) through a bottom curved rail (72). The included angle between the bottom plug rail (73) and the bottom parallel rail (71) is the same as the included angle between the second parallel rail (201) and the second plug rail (203).

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