CN216662374U

CN216662374U - Accessible elevating gear

Info

Publication number: CN216662374U
Application number: CN202220186442.XU
Authority: CN
Inventors: 黄晶
Original assignee: Dalian Lianda Chenrui Technology Co ltd
Current assignee: Dalian Lianda Chenrui Technology Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-03
Anticipated expiration: 2032-01-24

Abstract

The utility model relates to the technical field of barrier-free equipment, in particular to a barrier-free lifting device, which comprises a lifting unit, a lifting platform and a supporting frame, wherein the lifting platform and the supporting frame are horizontally arranged; the lifting unit comprises a rotating shaft, a driving device for driving the rotating shaft to rotate, and a first hinged arm, a first connecting arm and a second connecting arm which are positioned at the left side and the right side of the rotating shaft; the rotating shaft is rotatably arranged on the supporting frame, one end of the first hinged arm is fixed on the rotating shaft, and two ends of the first connecting arm are respectively and rotatably connected with the other end of the first hinged arm and the side surface of the lifting platform; one end of the second connecting arm is rotatably connected with the horizontal extending frames on the two sides of the supporting frame, and the other end of the second connecting arm is rotatably connected with the side surface of the lifting platform; the first connecting arm, the second connecting arm, the lifting platform and the horizontal extending frame form a four-bar linkage; the rear end of the lifting platform is provided with a rotatable rear pedal; the device can provide service for barrier-free travel and has the characteristic of multiple use scenes; can be stored, and the occupied space is reduced.

Description

Accessible elevating gear

Technical Field

The utility model relates to the technical field of lifting equipment, in particular to an accessible lifting device.

Background

The barrier-free facility is to ensure that the constructed material environment can be independently, safely and conveniently passed and used when the disabled, the old, the children and other people who are inconvenient to move live, go out, work, leisure and entertain and participate in other social activities, thereby creating a modern living environment which is full of love and care and can really ensure the safety, convenience and comfort of human beings.

With the development of society, barrier-free lifting facilities are popularized and popularized more and more, for example, barrier-free elevators are suitable for elevators which can be accessed and used by wheelchair riders, visual handicapped persons or stretcher beds, but for situations which do not require elevators or are not suitable for being additionally installed when the height is about 0.5-1.0m, such as barrier-free passages arranged at the entrance steps of buildings, slope passages with small gradient or long slope passages are generally adopted to facilitate the travel of the wheelchair riders, but the slope passages have the defects of large occupied space and limited space.

The existing barrier-free lifting device is built on a step with the height of about 0.5 meter, and can ascend and descend to convey a wheelchair and a user thereof from a high place to a ground or from the ground to the high place. For example, in the prior art, patent No. 202022265121.2 discloses an automatic lifting platform, which includes a bottom plate, a turnover pedal, a lifting platform and a hydraulic lifting device, wherein the lifting platform is lifted or lowered by starting the hydraulic lifting device to realize the transportation of the wheelchair from high to low or from low to high steps. However, the scheme has the defects of complex structure, large occupied space, limited installation on the ground and limited use scenes.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of complex structure, large occupied space and limited use scenes of the barrier-free lifting device in the prior art, the utility model provides the barrier-free lifting device which has the characteristics of simple structure, small volume and more use scenes.

In order to realize the purpose, the following technical scheme is provided:

an accessible lifting device comprises a lifting unit, a lifting platform and a supporting frame, wherein the lifting platform is horizontally arranged; the lifting unit comprises a rotating shaft, a driving device for driving the rotating shaft to rotate, and a first hinged arm, a first connecting arm and a second connecting arm which are positioned at the left side and the right side of the rotating shaft; the rotating shaft is rotatably arranged on the supporting frame, one end of the first hinged arm is fixed on the rotating shaft, and two ends of the first connecting arm are respectively and rotatably connected with the other end of the first hinged arm and the side surface of the lifting platform; one end of the second connecting arm is rotatably connected with the horizontal extending frames on the two sides of the supporting frame, and the other end of the second connecting arm is rotatably connected with the side surface of the lifting platform; the first connecting arm, the second connecting arm, the lifting platform and the horizontal extending frame form a four-bar linkage.

Preferably, the device also comprises a box body and a walking unit which moves in the box body together with the control supporting frame.

Preferably, the walking unit comprises a screw rod and a walking motor driving the screw rod to rotate, two ends of the screw rod are respectively arranged on the front side and the rear side inside the box body through supporting seats, a screw rod nut is arranged on the screw rod and arranged on the supporting frame, and an output shaft of the walking motor is in transmission connection with the screw rod.

Preferably, the inside both sides at the box all are equipped with the guide way, and braced frame's both sides all are equipped with the walking wheel of mutually supporting with the guide way.

Preferably, the driving device comprises a driving electro-hydraulic cylinder, a driving sliding rod, a second hinged arm and a pushing arm; the two sides of the supporting frame are provided with sliding chutes matched with the two ends of the driving sliding rod; the telescopic arm of the driving hydraulic cylinder is connected with the driving slide rod, one end of the second hinged arm is fixed on the rotating shaft, one end of the pushing arm is rotatably connected with the other end of the second hinged arm, and the other end of the pushing arm is rotatably connected with the driving slide rod.

Preferably, a rotatable rear pedal is arranged at the rear side of the lifting platform.

The basic working principle and the using principle of the utility model are as follows: the device is used for lifting the wheelchair from a low position to a high position or from the high position to the low position, and provides service for barrier-free travel. The supporting frame provides support for the lifting platform, the driving device and the lifting device, the lifting platform is used for parking the wheelchair, the first connecting arm, the second connecting arm, the lifting platform and the horizontal extending frame form a parallel four-bar linkage mechanism, the lifting platform can keep horizontal, and the lifting unit is used for overturning, lifting or descending the lifting platform.

When using this device to promote the wheelchair to the step eminence, drive arrangement starts and drives the rotation axis rotation on the braced frame, the first hinge arm of rotation axis drives first connecting arm and overturns downwards, descend lift platform to low ground position, in order to make things convenient for the user to park the wheelchair on lift platform, then drive arrangement drives the rotation axis antiport on the braced frame, the first hinge arm of rotation axis drives first connecting arm and upwards overturns, lift platform is overturned and is lifted to the step eminence gradually, place in eminence step until lift platform's rear end, the user drives the wheelchair and walks forward, it drives lift platform to go away. In addition, the device is also provided with a box body, the box body can be embedded outside a building or on other equipment, the lifting platform is overturned to be horizontal to the supporting frame by the driving device, and the lifting platform can be contained in the box body under the driving of the walking unit.

The beneficial technical effects of the utility model are as follows: 1. the device can be arranged at steps outside or inside a building, and can also be arranged on a vehicle to provide barrier-free travel service, so that wheelchair users can easily cross the steps or easily take buses to travel, and the device has the characteristic of multiple use scenes; 2. this device simple structure, it is small to can accomodate when not using, can further reduce occupation space, also do not influence the pleasing to the eye of use scene.

Drawings

Fig. 1 is a schematic structural view of a use state of the barrier-free lifting device.

Fig. 2 is another schematic structural diagram of the barrier-free lifting device in the use state.

Fig. 3 is a schematic view showing an internal structure of a case in the barrier-free lifting device of the present invention.

Fig. 4 is a schematic structural view of a lifting unit in the barrier-free lifting device.

Fig. 5 is a schematic view of the structure of fig. 4 from another angle.

Fig. 6 is a schematic structural view of the barrier-free lifting device of the present invention in a ready-to-store state.

Fig. 7 is a schematic structural view of the barrier-free lifting device in a storage state.

In the figure: 1. a lifting platform; 2. a support frame; 3. a rotating shaft; 4. a first hinge arm; 5. a first connecting arm; 6. a second connecting arm; 7. a horizontal stretching frame; 8. a box body; 9. a screw rod; 10. a traveling motor; 11. a supporting seat; 12. a guide groove; 13. a traveling wheel; 14. driving the electro-hydraulic cylinder; 15. driving the slide bar; 16. a second hinge arm; 17. a thrust arm; 18. a chute; 19. a rear pedal; 21. A feed screw nut; 22. a pulley; 23. a guide wheel seat.

Detailed Description

The barrier-free lifting device of the present invention is further described with reference to the accompanying drawings and the embodiments.

As shown in fig. 4 and 5, an accessible lifting device comprises a lifting unit, a lifting platform 1 horizontally arranged and a supporting frame 2; the lifting unit comprises a rotating shaft 3, a driving device for driving the rotating shaft 3 to rotate, and a first hinged arm 4, a first connecting arm 5 and a second connecting arm 6 which are positioned at the left side and the right side of the rotating shaft 3; the rotating shaft 3 is rotatably arranged on the supporting frame 2, one end of the first hinged arm 4 is fixed on the rotating shaft 3, and two ends of the first connecting arm 5 are respectively and rotatably connected with the other end of the first hinged arm 4 and the side surface of the lifting platform 1; one end of the second connecting arm 6 is rotatably connected with the horizontal extending frames 7 at the two sides of the supporting frame 2, and the other end is rotatably connected with the side surface of the lifting platform 1; the first connecting arm 5, the second connecting arm 6, the lifting platform 1 and the horizontal extending frame 7 form a four-bar linkage mechanism.

The device is used for lifting the wheelchair from a low position to a high position or from the high position to the low position, and provides service for barrier-free travel. The supporting frame 2 provides support for the lifting platform 1, the driving device and the lifting device, the lifting platform 1 is used for parking a wheelchair, the first connecting arm 5, the second connecting arm 6, the lifting platform 1 and the horizontal extending frame 7 form a parallel four-bar linkage mechanism, so that the lifting platform 1 can be kept horizontal, horizontal lifting is realized, the wheelchair is favorable for stable parking, and the lifting unit is used for overturning, lifting or descending the lifting platform 1. The first connecting arm 5, the second connecting arm 6 and the horizontal extending frame 7 are on different planes so as not to interfere with each other.

When using this device to promote the wheelchair to the step eminence, drive arrangement starts and drives the rotation axis 3 on the braced frame 2 and rotates, first hinge arm 4 on the rotation axis 3 drives first connecting arm 5 and overturns downwards, with lifting platform 1 drop to low ground position, in order to make things convenient for the user to park the wheelchair on lifting platform 1, then drive arrangement drives 3 antiport of rotation axis on the braced frame 2, first hinge arm 4 on the rotation axis 3 drives first connecting arm 5 and upwards overturns, lifting platform 1 is overturned gradually and is lifted to the step eminence, place in eminence step until lifting platform 1's rear end, the user drives the wheelchair and walks forward, it is from lifting platform 1 to sail.

In one embodiment, the driving device comprises a stepping motor and a gear set, wherein gears which are meshed with each other are respectively arranged on the rotating shaft 3 and the output shaft of the motor, and the stepping motor drives the rotating shaft 3 to rotate in the forward direction or the reverse direction through the gears after being started. In another embodiment, the driving device may also directly connect the output shaft of the motor with the rotating shaft 3 to drive the rotating shaft 3 to rotate forward or backward, so as to achieve the effect of lifting or dropping the lifting platform 1.

In this embodiment, the horizontal extending frames 7 are fixed to both sides of the supporting frame 2 by bolts, and may be integrally connected to the supporting frame 2. The upper surface of the lifting platform 1 is also provided with convex lines for increasing friction force and facilitating stable parking of the wheelchair; the supporting frame 2 comprises metal supporting rods which are connected in a longitudinal and transverse mode; the lifting height range of the device is 0.5-1.0m, and the device is suitable for being installed at the door of a vehicle, the step of entering the house outside a building and other scenes.

Further, as shown in fig. 1, 2, 3, 6 and 7, the present invention further includes a box 8 and a traveling unit moving in the box 8 together with the control support frame 2. In addition, the device is also provided with a box body 8, the box body 8 can be preassembled outside a building or on other equipment, the lifting platform 1 is turned over to be horizontal to the supporting frame 2 by the driving device, and the lifting platform 1 can be accommodated in the box body 8 under the driving of the walking unit.

When the wheelchair is used, the walking unit drives the supporting frame 2 to extend out, the lifting unit overturns and puts down the lifting platform 1 to the ground position, the wheelchair walks to the lifting platform 1 to park, then the driving device starts and drives the lifting device to lift the lifting platform 1 and the wheelchair to a high step, and the wheelchair is driven out of the lifting platform 1 to the upper part of the step to finish barrier-free passing. Under the condition of not using, drive arrangement drive lift unit upset lift platform 1 is as for the same height of braced frame 2, then walking unit drive braced frame 2 slides to box 8 is inside, and in accommodating parts such as lift platform 1, lift unit into box 8, box 8 can imbed the bottom of the inside or automobile body of building, does not occupy other spaces, does not influence the pleasing to the eye of use scene. The walking unit, the lifting unit and the driving device can be connected with the controller, and a user can complete corresponding operation by pressing a starting button and an accommodating button which are connected with the controller. The controller can adopt a micro-control board, a single chip microcomputer and the like, and the connection mode of the controller, the walking unit, the lifting unit and the driving device point circuit can be mastered by a person skilled in the art, and the detailed description is omitted.

In one embodiment, the walking unit comprises an electric push rod, and a telescopic rod of the electric push rod is connected with the rotating shaft 3 to drive the rotating shaft 3 to slide forwards or backwards in the box body 8.

Further, as shown in fig. 3, 6 and 7, the traveling unit includes a screw rod 9 and a traveling motor 10 for driving the screw rod 9 to rotate, two ends of the screw rod 9 are respectively installed at the front side and the rear side inside the box body 8 through a support seat 11, a screw rod nut 21 is installed on the screw rod 9, the screw rod nut 21 is installed on the support frame 2, and an output shaft of the traveling motor 10 is in transmission connection with the screw rod 9.

In this embodiment, a feed screw nut 21 is connected to the front part of the feed screw 9, a cushion block is arranged at the bottom of the feed screw nut 21, and the feed screw nut 21 and the cushion block are fixed on a cross frame in the supporting frame 2 through bolts. The front end and the rear end of the screw rod 9 are rotatably mounted on a supporting seat 11, and the supporting seat 11 is fixed at the top of the inner side of the box body 8 through a bolt. Belt pulleys 22 are mounted at the rear end of the screw rod 9 and on an output shaft of the walking motor 10, the walking motor 10 drives the screw rod 9 to rotate through a belt, and the screw rod 9 pushes or pulls the supporting frame 2 to slide in the box body 8 in the rotating process; the walking motor 10 is not limited to a type 80 servo motor.

Further, as shown in fig. 3 and 6, guide grooves 12 are provided on both sides of the inside of the box 8, and road wheels 13 engaged with the guide grooves 12 are provided on both sides of the support frame 2.

Guide wheel seats 23 are installed on two sides of the supporting frame 2, and the walking wheels 13 are installed on the guide wheel seats 23 through pin shafts, and in the embodiment, the walking wheels 13 are installed on the outer sides and the bottom of the guide wheel seats 23. The side road wheels 13 slide in the guide grooves 12; the walking wheel 13 of bottom slides along the inner wall of box 8, also can play the spacing effect to braced frame 2, prevents that braced frame 2 from rocking in box 8 is inside, and it is more smooth and easy to slide.

Further, as shown in fig. 3, 4, 5, 6, 7, the driving means includes a driving hydraulic cylinder 14, a driving slide rod 15, a second hinge arm 16, and a thrust arm 17; the two sides of the supporting frame 2 are provided with sliding chutes 18 which are matched with the two ends of the driving sliding rod 15; the telescopic arm of the driving electro-hydraulic cylinder 14 is connected with the driving slide rod 15, one end of the second hinged arm 16 is fixed on the rotating shaft 3, one end of the thrust arm 17 is rotatably connected with the other end of the second hinged arm 16, and the other end is rotatably connected with the driving slide rod 15.

When the device is used, after the supporting frame 2, the lifting platform 1 and the lifting unit extend out of the box body 8, the hydraulic cylinder 14 is driven to start, the telescopic arm of the hydraulic cylinder 14 is driven to contract, the driving slide rod 15 is driven to move forwards, the driving slide rod 15 drives the pushing arm 17 to push the second hinged arm 16 forwards to rotate, so that the rotating shaft 3 and the first hinged arm 4 are driven to rotate, the first hinged arm 4 downwards overturns the first connecting arm 5 in the parallel four-bar linkage mechanism, and the lifting platform 1 is lowered to a lower ground position. When a user parks the wheelchair in the lifting platform 1, the telescopic arm of the electro-hydraulic cylinder 14 is driven to extend backwards to drive the driving slide rod 15 to move backwards, the driving slide rod 15 drives the pushing arm 17 to pull the second hinge arm 16 backwards to rotate, so that the rotating shaft 3 and the first hinge arm 4 are driven to rotate, the first hinge arm 4 upwards overturns the first connecting arm 5 in the parallel four-bar linkage mechanism, and the lifting platform 1 is lifted to a high step position.

Similarly, when not in use, the telescopic arm of the hydraulic cylinder 14 is driven to extend backwards, the drive slide bar 15 is driven to move backwards, the drive slide bar 15 drives the push arm 17 to pull the second hinge arm 16 backwards to rotate, so as to drive the rotating shaft 3 and the first hinge arm 4 to rotate, the first hinge arm 4 upwards overturns the first connecting arm 5 in the parallel four-bar linkage mechanism, the lifting platform 1 is overturned to be at the same height as the supporting frame 2, then the supporting frame 2 is driven by the walking unit to slide towards the inside of the box body 8, and the lifting platform 1, the lifting unit and other components are collected and contained in the box body 8.

In this embodiment, the driving hydraulic cylinder 14 is a dc hydraulic push rod, and the sliding slot 18 is a rectangular sliding rail structure, and is fixed inside two sides of the supporting frame 2 by bolts, so as to drive two ends of the sliding rod 15 to slide inside the sliding slot 18. The telescopic arm of the driving electro-hydraulic cylinder 14 is installed on the driving slide rod 15 through a hinged seat, and the driving electro-hydraulic cylinder 14 is installed on a cross frame in the supporting frame 2 through a hinged seat. The first hinge arm 4 and the second hinge arm 16 are connected into a whole through a connecting pipe, an included angle is arranged between the first hinge arm 4 and the second hinge arm 16, the included angle is suitable for achieving the overturning effect, and the included angle is 100 degrees in the embodiment.

Further, as shown in fig. 1, 2, 3, 4, and 6, a rotatable rear step plate 19 is provided on the rear side of the elevating platform 1. The bottom of the rear pedal 19 is arranged on the lifting platform 1 through a hinge, and can be turned and horizontally placed on the lifting platform 1 in a storage state; when the lifting platform 1 falls to the low ground, the user can stand the rear pedal 19 and lean between the first hinge arms 4 at the two sides, so that the wheelchair is prevented from sliding off the lifting platform 1 in the process of lifting the lifting platform 1, and the use safety is improved. When the lifting platform 1 is lifted to a high step, the rear foot plate 19 can also be placed on the step to serve as a lap plate.

Claims

1. An accessible elevating gear, characterized by that, including lifting unit, lifting platform (1) and supporting frame (2) that set up horizontally; the lifting unit comprises a rotating shaft (3), a driving device for driving the rotating shaft (3) to rotate, and a first hinge arm (4), a first connecting arm (5) and a second connecting arm (6) which are positioned on the left side and the right side of the rotating shaft (3); the rotating shaft (3) is rotatably arranged on the supporting frame (2), one end of the first hinged arm (4) is fixed on the rotating shaft (3), and two ends of the first connecting arm (5) are respectively and rotatably connected with the other end of the first hinged arm (4) and the side face of the lifting platform (1); one end of the second connecting arm (6) is rotatably connected with the horizontal extending frames (7) at the two sides of the supporting frame (2), and the other end is rotatably connected with the side surface of the lifting platform (1); the first connecting arm (5), the second connecting arm (6), the lifting platform (1) and the horizontal extending frame (7) form a four-bar linkage.

2. Accessible lifting device according to claim 1, characterized in that it further comprises a box (8) and a walking unit moving with the control support frame (2) inside the box (8).

3. The accessible lifting device of claim 2, characterized by that, the walking unit includes the feed screw (9), the walking motor (10) driving the feed screw (9) to rotate, both ends of the feed screw (9) are installed in the front and rear sides of the inside of the container body (8) through the supporting seat (11) respectively, install the feed screw nut (21) on the feed screw (9), the feed screw nut (21) is installed on the supporting frame (2), the output shaft of the walking motor (10) is connected with feed screw (9) in a driving manner.

4. Accessible lifting device as defined in claim 2 or 3, characterized in that, the inside both sides of box (8) are equipped with guide way (12), and the both sides of support frame (2) are equipped with road wheel (13) that cooperate with guide way (12).

5. A barrier-free lifting device as claimed in any one of claims 1 to 3, characterized in that the drive means comprise a drive electro-hydraulic cylinder (14), a drive slide (15), a second hinge arm (16) and a thrust arm (17); the two sides of the supporting frame (2) are respectively provided with a sliding chute (18) which is matched with the two ends of the driving sliding rod (15); the telescopic arm of the driving electro-hydraulic cylinder (14) is connected with the driving slide rod (15), one end of the second hinged arm (16) is fixed on the rotating shaft (3), one end of the pushing arm (17) is rotatably connected with the other end of the second hinged arm (16), and the other end of the pushing arm is rotatably connected with the driving slide rod (15).

6. Accessible lifting device according to claim 4, characterized in that the driving means comprise a driving electro-hydraulic cylinder (14), a driving slide (15), a second articulated arm (16) and a thrust arm (17); both sides of the supporting frame (2) are provided with sliding chutes (18) matched with both ends of the driving sliding rod (15); the telescopic arm of the driving electro-hydraulic cylinder (14) is connected with the driving slide rod (15), one end of the second hinged arm (16) is fixed on the rotating shaft (3), one end of the pushing arm (17) is rotatably connected with the other end of the second hinged arm (16), and the other end of the pushing arm is rotatably connected with the driving slide rod (15).

7. Accessible lifting device according to claim 1, 2, 3 or 6, characterized in that a rotatable rear step (19) is provided at the rear side of the lifting platform (1).

8. Accessible lifting device according to claim 4, characterized in that a rotatable rear pedal (19) is provided at the rear side of the lifting platform (1).

9. Accessible lifting device according to claim 5, characterized in that a rotatable rear pedal (19) is provided at the rear side of the lifting platform (1).