CN112298322A

CN112298322A - Stair climbing vehicle

Info

Publication number: CN112298322A
Application number: CN202011401447.1A
Authority: CN
Inventors: 刘国华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-02-02

Abstract

The invention relates to the technical field of wheelchairs and stair climbing equipment, in particular to a stair climbing vehicle, which comprises a frame, a bridge plate assembly and wheel assemblies arranged at the bottoms of two sides of the frame, wherein two opposite sliding assemblies are respectively arranged at two sides of the frame, the bridge plate assembly is arranged at the sliding part of the sliding assemblies, the sliding assemblies drive the bridge plate assembly to be alternately connected end to form a walking path for the wheel assemblies to walk, the bridge plate assembly comprises a retractable part, an upper bridge plate, a lower bridge plate and a support part movably connected with the upper bridge plate and the lower bridge plate, one end of the retractable part is arranged on the upper bridge plate, and when the retractable part of one bridge plate assembly drives the corresponding lower bridge plate to be put down, the retractable part of the other bridge plate assembly drives the corresponding lower bridge plate to be put up; the invention has the beneficial effects that: when the wheel assembly walks on one bridge plate assembly, only the part of the other bridge plate assembly needs to be lifted, and the whole bridge plate assembly does not need to be lifted, so that the whole bridge plate assembly leaves a step or the ground, and the wheel assembly is convenient to move and can climb a building.

Description

Stair climbing vehicle

Technical Field

The invention relates to the technical field of wheelchairs and stair climbing equipment, in particular to a stair climbing vehicle.

Background

The stair climbing vehicle or the stair climbing machine is mainly divided into a loading stair climbing machine and a manned stair climbing machine. The carrying stair climbing machine is often used in the field of logistics carrying and can help people to carry heavy objects upstairs and downstairs easily. The manned stair climbing machine is suitable for handicapped and old people to pass through stairs, flat ground and the like without obstacles. Stair climbing machine mainly by: the operation armrest, the frame and the power execution unit.

The power execution unit of the existing stair climbing vehicle consists of two groups of wheels and a plurality of bridge plates, wherein each group of wheels walks on alternate bridge plates in an alternate mode, and the alternate bridge plates contact with steps in turn and are laid on stairs in an alternate step-by-step manner.

The stair climbing vehicle has the problems that firstly, the alternate control steps of the bridge plates are complicated; secondly, the whole bridge plate needs to be lifted and put down, the radian is large, and the control power is large.

Disclosure of Invention

The invention aims to provide a stair climbing vehicle to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a stair climbing vehicle, includes frame, bridge plate subassembly and installs the wheel subassembly in frame both sides bottom, two relative slip subassemblies are installed respectively to the both sides of frame, the slip part at slip subassembly is installed to the bridge plate subassembly, the slip subassembly drives the alternative end to end of bridge plate subassembly and forms the walking route that supplies the wheel subassembly walking, the bridge plate subassembly is including receiving and releasing piece, upper bridge plate, lower bridge plate and the support piece of swing joint upper bridge plate, lower bridge plate, the one end of receiving and releasing the piece is installed on upper bridge plate, and the other end is installed on lower bridge plate or support piece, and when receiving and releasing of a bridge plate subassembly drove corresponding lower bridge plate and put down, the piece that receives and releases of another bridge plate subassembly drove corresponding lower bridge plate and packs up.

As a further scheme of the invention: the supporting piece is provided with a limiting part for limiting the travel of the lower bridge plate and the retractable piece.

As a still further scheme of the invention: one side of the lower bridge plate, which is far away from the upper bridge plate, is provided with one or more flexible supporting pieces for increasing the contact area of the lower bridge plate and the step.

As a still further scheme of the invention: the flexible supporting piece is an air bag or hard sponge or rubber or silica gel.

As a still further scheme of the invention: the control module is electrically connected with the sliding assembly and the bridge plate assembly and controls the sliding assembly and the bridge plate assembly to work.

As a still further scheme of the invention: the control module is connected with a sensor group, and the sensor group is used for detecting the relative position of the wheel assembly and the step.

As a still further scheme of the invention: the sliding assembly comprises a guide part, a sliding part and a screw rod in threaded fit with the sliding part, and the guide part and the screw rod are respectively arranged on the side part of the frame; the sliding part drives the bridge plate assembly to move, and the guide part guides the sliding part.

As a still further scheme of the invention: and a telescopic assembly is arranged between the bridge plate assembly and the sliding assembly, and the telescopic assembly stretches and retracts the bridge plate assembly.

As a still further scheme of the invention: the telescopic assembly comprises a plurality of telescopic parts and telescopic power parts which are sequentially sleeved, the telescopic parts sequentially sleeved are provided with fixed ends and free ends, and the telescopic power parts arranged at the fixed ends drive the free ends to stretch.

As a still further scheme of the invention: the wheel assembly includes one or more concentrically mounted wheels.

As a still further scheme of the invention: when the retractable part pushes the supporting part to rotate backwards, the lower part of the supporting part rotates backwards after the lower bridge plate leaves the step, the upper top surface of the supporting part is attached to the bottom surface of the upper bridge plate, the lower bottom surface of the supporting part is attached to the top surface of the lower bridge plate, and the supporting part can not rotate backwards any more; when the wheel assembly is pressed on the upper bridge plate, the upper bridge plate moves downwards, the distance between the upper bridge plate and the lower bridge plate is reduced, and the supporting piece can not rotate forwards or backwards and is used for supporting and jacking the wheel assembly.

As a still further scheme of the invention: the number of the lower bridge plates is one or two, the lower bridge plates are movably connected with the two ends of the upper bridge plates through supporting pieces, when the retractable part of one bridge plate assembly drives the corresponding lower bridge plate to put down, the retractable part of the other bridge plate assembly drives the corresponding lower bridge plate to fold up.

Compared with the prior art, the invention has the beneficial effects that: the bridge plate assemblies positioned on the two sides of the wheel assembly are respectively a left bridge plate assembly and a right bridge plate assembly, when the wheel assembly walks on the left bridge plate assembly, only the lower bridge plate of the right bridge plate assembly needs to be lifted, the whole right bridge plate assembly does not need to be lifted, or when the wheel assembly walks on the right bridge plate assembly, only the lower bridge plate of the left bridge plate assembly needs to be lifted, and the whole left bridge plate assembly does not need to be lifted; make it leave step or ground to convenient the removal realizes climbing the building, has simplified the radian and the action of lifting up of climbing the building in-process left bridge plate subassembly and right bridge plate subassembly, and control step and logic are simpler, also more energy-conserving.

Drawings

Fig. 1 is a schematic structural view of a stair climbing vehicle according to an embodiment of the present invention;

FIG. 2 is a side view of a wheel assembly according to an embodiment of the present invention;

FIG. 3 is a schematic front view of a wheel assembly in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a left/right bridge plate assembly in an embodiment of the present invention;

FIG. 5 is a schematic structural view of a left/right bridge plate assembly in an embodiment of the present invention;

FIG. 6 is a schematic structural view of a left/right bridge plate assembly in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a left/right bridge plate assembly in an embodiment of the present invention.

In the drawings: 100. a frame; 200. a wheel assembly; 300. a bridge plate assembly; 1. a left bridge plate assembly; 2. a front position sensor; 3. a bridge retracting motor; 4. a right sled motor; 5. a slide bar; 6. a screw I; 7. a rear position sensor; 8. a right wheel; 9. a left wheel; 10. an air bag; 11. an upper bridge plate; 12. a lower bridge plate; 13. a right bridge plate assembly; 14. a left sled motor; 15. a screw II; 16. a screw seat; 17. a telescopic pump; 18. a movable support I; 19. a movable support II; 20. a lower chute; 21. a middle chute; 22. an upper chute; 23. a motor bracket.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Referring to fig. 1-3, in an embodiment of the present invention, a stair climbing vehicle includes a frame 100, a bridge plate assembly 300 and wheel assemblies 200 mounted at the bottom of two sides of the frame, two opposite sliding assemblies are respectively mounted at two sides of the frame 100, the bridge plate assembly is mounted at the sliding portions of the sliding assemblies, the sliding assemblies drive the bridge plate assemblies to alternately connect end to form a walking path for the wheel assemblies to walk, the bridge plate assembly includes a retractable member, an upper bridge plate, a lower bridge plate and a support member movably connecting the upper bridge plate and the lower bridge plate, one end of the retractable member is mounted on the upper bridge plate, the other end of the retractable member is mounted on the lower bridge plate or the support member, and when the retractable member of one bridge plate assembly drives the corresponding lower bridge plate to be put down, the retractable member of the other bridge plate assembly drives the corresponding lower bridge plate to be put down.

Specifically, the bridge plate assemblies positioned on the left side and the right side of the wheel assembly are a left bridge plate assembly 1 and a right bridge plate assembly 13 respectively. The sliding assembly drives the corresponding left bridge plate assembly 1 and the corresponding right bridge plate assembly 13 to be alternately connected end to form a walking path for the wheel assembly to walk; the bridge plate assembly comprises a retractable part, an upper bridge plate 11, a lower bridge plate 12 and a support part movably connected with the two bridge plates, wherein the support part comprises a movable support I18 and a movable support II19, two ends of the movable support I18 are respectively hinged with the same ends of the upper bridge plate 11 and the lower bridge plate 12, and two ends of the movable support II19 are respectively hinged with the same other ends of the upper bridge plate 11 and the lower bridge plate 12; the retractable part adopts a retractable pump 17, and the retractable pump 17 is one of a hydraulic pump, an air pump or an electric push rod; the telescopic pump 17 is installed on the upper bridge plate 11, the output end of the telescopic pump 17 is connected with the movable support I18 or the movable support I18 or both, and the telescopic pump 17 stretches out and draws back to drive the lower bridge plate to be close to or far away from the upper bridge plate so as to form or update the walking path.

In addition, the output end of the telescopic pump 17 can also be connected with the lower bridge plate 12; the function of driving the lower bridge plate to be close to or far away from the upper bridge plate to form or update a walking path is realized.

Furthermore, the supporting piece is provided with a limiting part for limiting the travel of the lower bridge plate and the retractable piece. Particularly, an oblique angle is processed at the top of the movable support I18 and the movable support II19, when the movable support I18 and the movable support II19 rotate to an angle, the top of the movable support I18 and the bottom of the upper bridge plate are contacted to form a limit position, so that the movable support I18 and the movable support II19 are limited to rotate again, the distance between the upper bridge plate and the lower bridge plate cannot be reduced any more, and the load can be borne.

As shown in fig. 6 and 7, when the telescopic pump 17 pushes the movable support I18 and the movable support II19 to rotate backwards, after the lower bridge plate leaves the step, the lower parts of the movable support I18 and the movable support II19 rotate backwards, then the upper top surface a of the movable support I18 and the movable support II19 are attached to the bottom surface of the upper bridge plate, the lower bottom surface B of the movable support I18 and the lower bottom surface of the movable support II19 are attached to the top surface of the lower bridge plate, and the movable support I18 and the movable support II19 can not rotate backwards any more; when the wheel assembly is pressed on the upper bridge plate, the upper bridge plate moves downwards, the distance between the upper bridge plate and the lower bridge plate is reduced, and the movable support I18 and the movable support II19 can not rotate forwards or backwards and are used for supporting and jacking the wheel assembly. The movable support I18 and the movable support II19 are in a diamond shape, and a connecting hinge hole C and a connecting hinge hole D are arranged at the opposite angle of the diamond shape and hinged with the upper bridge plate and the lower bridge plate.

In summary, when the wheel assembly travels on the left bridge plate assembly 1, only the lower bridge plate of the right bridge plate assembly 13 needs to be lifted, and the whole right bridge plate assembly 13 does not need to be lifted, or when the wheel assembly travels on the right bridge plate assembly 13, only the lower bridge plate of the left bridge plate assembly 1 needs to be lifted, and the whole left bridge plate assembly 1 does not need to be lifted; make it leave step or ground to convenient the removal realizes climbing the building, has simplified the radian and the action of lifting up of climbing building in-process left bridge plate subassembly 1 and right bridge plate subassembly 13, and control step and logic are simpler, also more energy-conserving.

Referring to fig. 2 and 4, in a preferred embodiment of the present invention, one or more flexible supporting members are disposed on a side of the lower bridge plate away from the upper bridge plate, for increasing a contact area between the lower bridge plate and the step.

The flexible supporting elements are air bags 10, and the number of the air bags 10 on each lower bridge plate 12 is two; the deformation of the air bag 10 increases the contact area between the lower bridge plate and the step, so that the stair climbing vehicle can bear larger weight.

In addition, in some embodiments, the number of the air bags 10 on each lower bridge plate 12 is one, and the contact area of the lower bridge plate and the step is increased through the deformation of the air bags 10.

Further, as shown in fig. 5, the lower bridge plate 12 is two in number and is installed in the manner as described above.

The flexible support may also be made of hard sponge or rubber or silicone.

Referring to fig. 1 and 2, in another embodiment of the present invention, the present invention further includes a control module electrically connected to the sliding assembly and the bridge plate assembly for controlling the sliding assembly and the bridge plate assembly to operate.

The control module comprises a microprocessor, and the microprocessor controls the sliding assembly and the bridge plate assembly to work through a relay or a power part directly connected with the sliding assembly and the bridge plate assembly.

The control module is connected with a sensor group, and the sensor group comprises a front position sensor 2 and a rear position sensor 7; the front position sensor 2 and the rear position sensor 7 are used to detect the relative position of the wheel assembly and the step.

Referring to fig. 1-4, in another embodiment of the present invention, the sliding assembly includes a guiding element, a sliding element and a screw rod in threaded engagement with the sliding element, wherein the guiding element and the screw rod are respectively installed at the side portions of the frame; the sliding part drives the bridge plate assembly to move, and the guide part guides the sliding part.

Specifically, as shown in fig. 3, the sliding assemblies installed at both sides of the wheel assembly are a left sliding assembly and a right sliding assembly, respectively; the left sliding assembly comprises a guide piece, a left sliding piece and a screw rod in threaded fit with the left sliding piece; the right sliding assembly comprises a guide piece, a right sliding piece and a screw rod in threaded fit with the right sliding piece. The screw rod installed at the side part of the frame is used as a screw rod I6, the guide piece comprises two slide bars 5 installed at the side part of the frame, the left slide piece comprises a left slide block and a left slide motor 14, the left slide block is installed on the corresponding slide bar in a sliding way, and the left slide motor 14 is installed on the corresponding left slide block and is in transmission connection with the corresponding screw rod I6; the left sliding motor 14 drives the left sliding block to move on the corresponding sliding rod; the right sliding part comprises a right sliding block and a right sliding motor 4, the right sliding block is slidably mounted on the corresponding sliding rod, and the right sliding motor 4 is mounted on the corresponding right sliding block and is in transmission connection with the corresponding screw I6; and the right sliding motor 4 drives the right sliding block to move on the corresponding sliding rod.

Referring to fig. 4, in another embodiment of the present invention, a telescopic assembly is installed between the bridge plate assembly and the sliding assembly, and the telescopic assembly extends and retracts the bridge plate assembly. The telescopic assembly comprises a plurality of telescopic parts and telescopic power parts which are sequentially sleeved, the telescopic parts sequentially sleeved are provided with fixed ends and free ends, and the telescopic power parts arranged at the fixed ends drive the free ends to stretch.

The telescopic assembly comprises a bridge retracting motor 3 and a plurality of telescopic pieces which are sleeved in sequence; the extensible member is spout 20, well spout 21, last spout 22 down respectively, receive bridge motor 3 and pass through motor support 23 and install the sliding part at sliding assembly, install promptly on the slider, the one end of going up spout 22 is installed on motor support 23, the output of receiving bridge motor 3 is connected with screw rod II15, be equipped with screw rod seat 16 on the screw rod II15, screw rod seat 16 with spout 20 is close to the one end of last spout 22 down and is connected, receive bridge motor 3 and drive the motion of screw rod seat 16 through screw rod II15, spout 20 is flexible down in the motion of screw rod seat 16 drives, and then realizes receiving and releasing of bridge plate subassembly.

Referring to fig. 3, in another embodiment of the present invention, the wheel assembly includes one or more concentrically mounted wheels.

The wheel assembly comprises two wheels, namely a right wheel 8 and a left wheel 9, which correspond to the right bridge plate assembly 13 and the left bridge plate assembly 1.

Or, the number of wheels that wheel subassembly includes is one, the wheel divide into two parts about, and in the in-process of climbing the building or walking, two parts about contact with the upper bridge plate that right bridge plate subassembly 13 and left bridge plate subassembly 1 correspond respectively, realize climbing the building or walk.

The working principle of the invention is as follows: when the wheel assembly walks on the left bridge plate assembly 1, only the lower bridge plate of the right bridge plate assembly 13 is lifted, and the whole right bridge plate assembly 13 does not need to be lifted, or when the wheel assembly walks on the right bridge plate assembly 13, only the lower bridge plate of the left bridge plate assembly 1 is lifted, and the whole left bridge plate assembly 1 does not need to be lifted; so that the stair climbing device can leave from steps or the ground to be convenient to move and realize stair climbing.

It should be noted that the microprocessor, the front position sensor and the rear position sensor adopted in the present invention are all prior art applications, and those skilled in the art can implement the intended functions according to the related description, or implement the technical features required to be accomplished by similar techniques, and will not be described in detail herein.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides a stair climbing vehicle, includes frame, bridge plate subassembly and installs the wheel subassembly in frame both sides bottom, two relative slip subassemblies are installed respectively to the both sides of frame, the bridge plate unit mount is at the slip part of slip subassembly, a serial communication port, the slip subassembly drives the alternate end to end of bridge plate subassembly and forms the walking route that supplies the wheel subassembly to walk, the bridge plate subassembly is including receiving and releasing, last bridge plate, lower bridge plate and the support piece of swing joint upper bridge plate, lower bridge plate, the one end of receiving and releasing is installed on last bridge plate, and the other end is installed on lower bridge plate or support piece, and when receiving and releasing of a bridge plate subassembly drove corresponding lower bridge plate and put down, the piece that receives and releases of another bridge plate subassembly drove corresponding lower bridge plate and packs up.

2. The stair climbing vehicle according to claim 1, wherein the supporting member is provided with a limiting portion for limiting the stroke of the lower bridge plate and the retractable member.

3. The stair climbing vehicle according to claim 1, wherein one or more flexible supports are provided on a side of the lower bridge plate away from the upper bridge plate for increasing a contact area of the lower bridge plate with the step.

4. The stair climbing vehicle according to claim 3, wherein the flexible support is an air bag or hard sponge or rubber or silicone.

5. The stair climbing vehicle according to claim 1, wherein the sliding assembly comprises a guide, a sliding member and a screw rod in threaded engagement with the sliding member, the guide and the screw rod being respectively mounted on the side portions of the frame; the sliding part drives the bridge plate assembly to move, and the guide part guides the sliding part.

6. The stair climbing vehicle according to claim 1 or 5, wherein a telescopic assembly is installed between the bridge plate assembly and the sliding assembly, and the telescopic assembly stretches and retracts the bridge plate assembly.

7. The stair climbing vehicle according to claim 6, wherein the telescopic assembly comprises a plurality of sequentially sleeved telescopic members and telescopic power members, the plurality of sequentially sleeved telescopic members are provided with fixed ends and free ends, and the telescopic power members arranged on the fixed ends drive the free ends to stretch and retract.

8. The stair climbing vehicle of claim 1, wherein the wheel assembly comprises one or more concentrically mounted wheels.

9. The stair climbing vehicle according to claim 2, wherein when the retractable member pushes the support member to rotate backward and the lower bridge leaves the step, the lower portion of the support member rotates backward, then the upper top surface of the support member is attached to the bottom surface of the upper bridge, the lower bottom surface of the support member is attached to the top surface of the lower bridge, and the support member can not rotate backward any more; when the wheel assembly is pressed on the upper bridge plate, the upper bridge plate moves downwards, the distance between the upper bridge plate and the lower bridge plate is reduced, and the supporting piece can not rotate forwards or backwards and is used for supporting and jacking the wheel assembly.

10. The stair climbing vehicle according to claim 1, wherein the number of the lower bridge plates is one or two, the lower bridge plates are movably connected to two ends of the upper bridge plate through supporting members, and when the retractable member of one bridge plate assembly drives the corresponding lower bridge plate to be put down, the retractable member of the other bridge plate assembly drives the corresponding lower bridge plate to be put up.