CN213697551U - Telescopic barrier-free passage device - Google Patents

Abstract

A telescopic accessible passage device comprises a cassette with an opening at the front end, a driving seat capable of sliding back and forth is installed in the cassette, and a bedplate capable of being retracted into the cassette is hinged with the driving seat; the cassette is internally provided with a rack which is arranged along the front-back direction, the driving seat is provided with a rotatable first gear and a motor for driving the first gear to rotate, and the first gear is meshed with the rack. The utility model discloses telescopic accessible passageway device simple structure, the drive seat is released the platen, can form domaticly, uses as accessible passageway. The cassette is mainly used for accommodating the bedplate, the driving seat is simple in structure and small in size, the cassette is flat in structure, the height and the space are small, the cassette is convenient to directly install on the bottom surface of a vehicle, the transformation difficulty of the vehicle is low, and the cassette is convenient to popularize.

Description

Telescopic barrier-free passage device

Technical Field

The utility model belongs to the auto-parts field especially relates to a telescopic accessible passageway device.

Background

The attention of disabled people in traveling marks the progress degree of social civilization, and most of the existing public facilities have barrier-free passages so as to facilitate wheelchair passing. In order to facilitate the disabled to conveniently take the wheelchair, a part of vehicles are provided with barrier-free passing devices, but the existing barrier-free passing devices are complex in structure and large in size, and many vehicles cannot be additionally installed due to the limitation of installation space, so that the barrier-free passage for the vehicles is not convenient to popularize.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the great problem of the complicated volume of current automobile-used accessible channel structure, provide a telescopic accessible channel device of simple structure small in size.

In order to achieve the above object, the utility model discloses a technical scheme be:

a telescopic accessible passage device comprises a cassette with an opening at the front end, a driving seat capable of sliding back and forth is installed in the cassette, and a bedplate capable of being retracted into the cassette is hinged with the driving seat;

the cassette is internally provided with a rack which is arranged along the front-back direction, the driving seat is provided with a rotatable first gear and a motor for driving the first gear to rotate, and the first gear is meshed with the rack.

Preferably, the driving seat is provided with a rotating shaft through a shaft seat, and the first gear is fixedly arranged on the rotating shaft;

the rotating shaft is provided with a second gear capable of moving axially, and the second gear and the rotating shaft are in transmission through a flat key;

and a driving gear which can be meshed with the second gear is arranged on the motor spindle, so that the motor can drive the second gear to rotate.

Preferably, the driving seat is provided with a movable seat capable of axially sliding, one side of the second gear is provided with a cylindrical connecting part, a protruding part arranged on the movable seat extends into a connecting groove formed in the outer wall of the connecting part, and the movable seat is connected with a traction rope for drawing the movable seat to enable the movable seat to slide.

Preferably, a return spring is arranged between the moving seat and the limiting plate arranged on the driving seat, and the return spring is a compression spring and is arranged along the axial direction;

when the driving gear is meshed with the second gear, the return spring is in a natural state;

the hauling cable sequentially passes through the limiting plate and the return spring and then is connected with the movable seat.

Preferably, a handle is hinged to a mounting seat arranged at the bottom of the bedplate and connected with a traction rope, a sleeve is sleeved on the traction rope, one end of the sleeve is fixedly connected with the mounting seat, and the other end of the sleeve is fixedly connected with the limiting plate.

Preferably, the bottom surface of the platen is provided with a guide groove which is parallel to the rack, and the front part of the bottom plate of the cassette is provided with a guide block which is positioned in the guide groove.

Preferably, a roller capable of rolling contact with the bottom surface of the platen is mounted on the front end of the bottom plate of the cassette.

Preferably, guide wheels are arranged on two sides of the driving seat and are in rolling contact with a bottom plate of the cassette.

Preferably, a cover plate is mounted on the opening at the front end of the cassette for opening and closing the opening of the cassette;

the cover plate is hinged with the cassette, and a torsional spring is arranged at the hinged position and used for pressing the cover plate on the opening through the elasticity of the torsional spring.

Preferably, guardrail components are arranged on two sides of the bedplate, each guardrail component comprises a railing and a plurality of support arms, and the support arms are arranged in parallel from front to back at intervals;

one end of the support arm is hinged with the railing, and the other end of the support arm is hinged with the bedplate;

the platen is provided with an assembly groove for accommodating the guardrail assembly, and the railing is provided with an accommodating groove for accommodating the support arm.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model discloses telescopic accessible passageway device simple structure, the drive seat is released the platen, can form domaticly, uses as accessible passageway. The cassette is mainly used for accommodating the bedplate, the driving seat is simple in structure and small in size, the cassette is flat in structure, the height and the space are small, the cassette is convenient to directly install on the bottom surface of a vehicle, the transformation difficulty of the vehicle is low, and the cassette is convenient to popularize.

The pivot passes through the driving gear transmission of second gear and motor, and the second gear is portable to when motor trouble, can cut off the transmission between motor and the pivot, make the pivot can the free rotation, and then make the drive seat free movement, can artifically pull out the platen from the magazine, guarantee laying of accessible passageway.

The movable seat pulls the second gear to move axially by pulling the traction rope, so that transmission is cut off. The reset spring of installation can produce the elasticity that can promote to remove the seat and reset when the transmission cuts off at the second gear removal to when the haulage rope loosens, promote to remove the seat and reset, resume the transmission.

The haulage rope passes through the handle tractive, when can outwards pulling handle, can cut off the transmission, pulls out the magazine with the platen simultaneously, manual operation's convenience when improving motor trouble.

The platform board both sides embedding installation guardrail can avoid the wheelchair to drop from platform board one side, improves the security, and the guardrail is convenient for receive and release simultaneously, can not increase the volume and occupy, guarantees that overall structure small in size.

Drawings

Fig. 1 is a schematic structural view of the retractable barrier-free passage device of the present invention in a retracted state;

FIG. 2 is a schematic view of the bellows of the retractable barrier-free passage device of the present invention;

FIG. 3 is a schematic structural view of a driving seat in the retractable barrier-free passageway device of the present invention;

FIG. 4 is a cross-sectional structural view of a driving seat of the retractable barrier-free passageway device of the present invention;

fig. 5 is a schematic structural view of the retractable barrier-free passage device of the present invention in an expanded state;

fig. 6 is a bottom view structural view of the retractable barrier-free passage device of the present invention in an expanded state;

in the above figures: 1. a cassette; 11. an opening; 12. a rack; 13. a guide block; 14. a roller; 2. a driving seat; 21. a first gear; 22. a second gear; 23. a rotating shaft; 24. a movable seat; 25. a connecting portion; 26. a boss portion; 27. connecting grooves; 28. a limiting plate; 29. a guide wheel; 3. a platen; 31. a mounting seat; 32. a handle; 33. a sleeve; 34. a guide groove; 35. assembling a groove; 4. a motor; 41. a driving gear; 5. a hauling rope; 6. a return spring; 7. a cover plate; 8. a guardrail assembly; 81. a railing; 82. and (4) a support arm.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 6, the present invention provides a telescopic barrier-free passageway device, which comprises a cassette 1, a driving seat 2 and a platen 3.

The driving seat 2 is installed in the cassette 1 and can move forward and backward. The bedplate 3 is connected with the driving seat 2, the front end of the cassette 1 is provided with an opening 11, and the bedplate 3 can move back and forth along with the driving seat 2 and extend out of the cassette 1 or be completely retracted into the cassette 1 through the opening 11.

The bedplate 3 is hinged with the driving seat 2, so that the bedplate 3 can swing downwards after extending out of the cassette 1, and the front end of the bedplate falls to the ground to form a ramp so as to lead the wheelchair to pass.

A rack 12 is installed in the cassette 1, and the rack 12 is arranged along the front-back direction.

The driving seat 2 is provided with a motor 4 and a first gear 21, the motor 4 drives the first gear 21 to rotate, and the first gear 21 is meshed with the rack 12, so that the driving seat 2 is driven by the motor 4 to move back and forth.

In the retracted state as shown in fig. 1, the driving seat 2 is located at the rear in the cassette 1, so that the platen 3 is completely accommodated in the cassette 1.

When the wheelchair needs to get on or off the vehicle, the motor 4 drives the driving seat 2 to move forwards through the transmission of the first gear 21 and the rack 12, the bedplate 3 extends out of the cassette 1 from the opening 11, the bedplate 3 swings downwards and the front end of the bedplate falls to the ground to reach the unfolding state shown in figures 5 and 6, and the bedplate 3 forms a ramp for the wheelchair to pass through.

When the motor 4 is damaged and cannot run, the main shaft cannot rotate by itself, so that the driving seat 2 cannot move, and the bedplate 3 cannot extend out. In order to ensure the normal use of the barrier-free passage device when the motor 4 is damaged, the driving seat 2 is provided with a rotating shaft 23 through a shaft seat, and the first gear 21 is fixedly arranged on the rotating shaft 23.

The second gear 22 is sleeved on the rotating shaft 23, so that the second gear 22 can axially slide. The second gear 22 is connected with the rotating shaft 23 through a flat key, so that the two gears can be mutually driven, and the second gear 22 can be ensured to axially slide.

The main shaft of the motor 4 is provided with a driving gear 41. When the motor 4 is normal, the second gear 22 is aligned with the driving gear 41 in the radial direction, so that the two are meshed with each other, and the motor 4 can drive the rotating shaft 23 to rotate through the transmission of the two, so that the first gear 21 is driven, the driving seat 2 moves back and forth, and the bedplate 3 extends out and retracts; when the motor 4 fails, the second gear 22 axially slides and is staggered with the driving gear 41, the second gear and the driving gear are disengaged, the rotating shaft 23 can freely rotate, the bedplate 3 is manually pushed and pulled, the driving seat 2 can move back and forth, the bedplate 3 can extend and retract, and barrier-free passing can be still ensured when the motor fails.

To facilitate the sliding of the second gear 22, a movable seat 24 is mounted on the driving seat 2 to be axially slidable.

A cylindrical connecting portion 25 is provided on the second gear 22 side, and an annular connecting groove 27 is provided on the outer wall of the connecting portion 25.

The movable seat 24 is provided with a projection 26 extending into the connecting groove 27, and the pull rope 5 is connected to the movable seat 24.

The pulling rope 5 is pulled to axially slide the movable seat 24, the second gear 22 is axially pulled through the matching of the convex part 26 and the connecting groove 27, the second gear 22 and the driving gear 41 are staggered and disengaged, the transmission is cut off, the free movement of the driving seat 2 is realized, and the manual unfolding in the fault is realized.

In order to allow the transmission to be restored after disconnection, a return spring 6 is installed between the moving seat 24 and a limit plate 28 provided to the driving seat 2.

The return spring 6 is a compression spring and is arranged along the axial direction.

When the driving gear 41 is engaged with the second gear 22 in alignment, the return spring 6 is in a natural state where it is not elastically deformed.

When the pulling rope 5 is pulled to axially slide the moving seat 24, the moving seat 24 is close to the limit plate 28, the return spring 6 is compressed and deformed, the driving gear 41 is staggered with the second gear 22, and the transmission is separated. When the traction rope 5 is loosened, the elastic force of the return spring 6 pushes the movable seat 24 to be away from the limit plate 28, the second gear 22 returns to the position aligned with the driving gear 41, and the transmission between the two is recovered, so that the return is realized.

After the haulage rope 5 passed limiting plate 28 and reset spring 6 in proper order, linked to each other with removing seat 24, guaranteed the direction of haulage rope 5 tractive and towards limiting plate 28, reset spring 6 can carry out radial spacing through haulage rope 5.

In order to facilitate manual operation, a handle 32 is hinged to a mounting seat 31 arranged at the bottom of the bedplate 3, the handle 32 is connected with the traction rope 5, a sleeve 33 is sleeved on the traction rope 5, one end of the sleeve 33 is fixedly connected with the mounting seat 31, and the other end of the sleeve 33 is fixedly connected with the limiting plate 28.

When the bedplate 3 is pulled forwards manually, the handle 32 can be pulled directly to swing the handle 32, the traction rope 5 is pulled to axially slide the moving seat 24, the transmission is disconnected, and the manual operation is more convenient.

In order to make the platen 3 slide smoothly, the bottom surface of the platen 3 is provided with a guide groove 34, the guide groove 34 is parallel to the rack 12, the front part of the bottom plate of the cassette 1 is provided with a guide block 13, and the guide block 13 is positioned in the guide groove 34.

When the platen 3 is drawn out or retracted, the platen 3 is guided by the sliding of the guide block 13 in the guide groove 34, and the platen 3 can be smoothly moved.

The front end of the bottom plate of the cassette 1 is provided with the roller 14, the roller 14 is in rolling contact with the bottom surface of the bedplate 3, the sliding friction between the bedplate 3 and the bottom surface of the cassette 1 is avoided, and the smoothness of the movement of the bedplate 3 can also be improved. The roller 14 is located at the front end and serves as a fulcrum to smoothly raise the swinging platen 3 upward to a horizontal state when the driving base 2 is moved rearward, so as to be quickly retracted into the cassette 1.

To ensure the smoothness of the movement of the driving base 2, guide wheels 29 are provided on both sides of the driving base 2, and the guide wheels 29 are in rolling contact with the bottom plate of the cassette 1 or guide rails provided on the bottom plate.

In order to avoid the exposure of the internal structure of the cassette 1 and the self-extension of the platen 3, a cover plate 7 is mounted on the opening 11 at the front end of the cassette 1.

The cover plate 7 is hinged with the cassette 1, a torsion spring is arranged at the hinged position, and the cover plate 7 is pressed on the opening 11 by the elasticity of the torsion spring.

When the driving seat 2 moves forwards, the bedplate 3 overcomes the elasticity of the torsion spring, and the cover plate 7 is covered on the top cover, so that the bedplate 3 extends out. When the platen 3 is retracted into the cassette 1, the cover 7 is closed over the opening 11 by the spring force of the torsion spring, thereby closing the cassette 1.

To improve safety, guardrail assemblies 8 are mounted on both sides of the bedplate 3.

The guardrail assembly 8 includes a railing 81 and a plurality of support arms 82, the support arms 82 being arranged in parallel and spaced apart from each other from front to back.

One end of the support arm 82 is hinged with the railing 81, and the other end is hinged with the bedplate 3 to form a parallelogram connecting rod structure.

The deck 3 is provided with a mounting slot 35 for receiving the guard rail assembly 8 and the rail 81 is provided with a receiving slot for receiving the support arm 82.

When the platen 3 is positioned in the cassette 1, the arm 82 is positioned in the receiving groove and the rail 81 is positioned in the fitting groove 35, so that the rail assembly 8 is folded in the platen 3.

After the table plate 3 is extended out of the cassette 1, the rail 81 is pulled out from the assembling groove 35, and the support arm 82 is pulled out from the receiving groove and stands up to form a guardrail, so that the wheelchair is prevented from falling from both sides of the table plate 3, and the safety is improved.

Claims (10)

1. A telescopic accessible channel device is characterized by comprising a cassette (1) with an opening (11) at the front end, wherein a driving seat (2) capable of sliding back and forth is installed in the cassette (1), and the driving seat (2) is hinged with a bedplate (3) capable of being retracted into the cassette (1);

a rack (12) is installed in the cassette (1), the rack (12) is arranged along the front-back direction, a rotatable first gear (21) and a motor (4) for driving the first gear (21) to rotate are installed on the driving seat (2), and the first gear (21) is meshed with the rack (12).

2. The telescopic unobstructed passage way device according to claim 1, wherein said driving seat (2) is equipped with a rotating shaft (23) through a shaft seat provided, said first gear (21) being fixed on said rotating shaft (23);

a second gear (22) capable of moving axially is mounted on the rotating shaft (23), and the second gear (22) and the rotating shaft (23) are in flat key transmission;

and a driving gear (41) which can be meshed with the second gear (22) is arranged on a main shaft of the motor (4), so that the motor (4) can drive the second gear (22) to rotate.

3. The telescopic unobstructed passage way device according to claim 2, wherein said driving seat (2) is mounted with a movable seat (24) capable of sliding axially, said second gear (22) is provided with a cylindrical connection portion (25) on one side, said movable seat (24) is provided with a protruding portion (26) extending into a connection groove (27) provided on the outer wall of said connection portion (25), said movable seat (24) is connected with a pulling rope (5) for pulling said movable seat (24) to slide.

4. The telescopic unobstructed passage device according to claim 3, characterized in that between said mobile seat (24) and a limit plate (28) provided by the driving seat (2) is mounted a return spring (6), said return spring (6) being a compression spring, axially arranged;

when the driving gear (41) is meshed with the second gear (22), the return spring (6) is in a natural state;

the traction rope (5) sequentially penetrates through the limiting plate (28) and the return spring (6) and then is connected with the movable seat (24).

5. The telescopic barrier-free passage device according to claim 3 or 4, wherein a mounting seat (31) arranged at the bottom of the bedplate (3) is hinged with a handle (32), the handle (32) is connected with a traction rope (5), a sleeve (33) is sleeved on the traction rope (5), one end of the sleeve (33) is fixedly connected with the mounting seat (31), and the other end of the sleeve is fixedly connected with the limiting plate (28).

6. The telescopic clear aisle unit according to claim 1, characterized in that the bottom surface of the bedplate (3) is provided with a guide groove (34), the guide groove (34) being parallel to the rack (12), and the front part of the floor of the cassette (1) is provided with a guide block (13), the guide block (13) being located in the guide groove (34).

7. The telescopic clear aisle unit according to claim 1, characterised in that the front end of the floor of the magazine (1) is fitted with rollers (14) capable of rolling contact with the bottom surface of the bedplate (3).

8. Telescopic clear passage device according to claim 1, characterized in that the driving seat (2) is provided with guide wheels (29) on both sides, which guide wheels (29) are in rolling contact with the floor of the magazine (1).

9. The telescopic unobstructed passage way device according to claim 1 wherein, a cover plate (7) is mounted on the opening (11) of the front end of said magazine (1) to open and close the opening (11) of the magazine (1);

the cover plate (7) is hinged with the cassette (1), and a torsion spring is arranged at the hinged position and used for pressing and holding the cover plate (7) on the opening (11) through the elasticity of the torsion spring.

10. The telescopic unobstructed access device according to claim 1, wherein, on both sides of said platen (3), there are installed guardrail assemblies (8), said guardrail assemblies (8) comprising railings (81) and support arms (82), said support arms (82) being arranged in parallel and in spaced plural numbers from front to back;

one end of the support arm (82) is hinged with the railing (81), and the other end of the support arm is hinged with the bedplate (3);

the bedplate (3) is provided with an assembly groove (35) for accommodating the guardrail component (8), and the railing (81) is provided with an accommodating groove for accommodating the support arm (82).

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