CN203154116U

CN203154116U - Electric wheelchair with liftable armrests

Info

Publication number: CN203154116U
Application number: CN 201320187375
Authority: CN
Inventors: 沈文华
Original assignee: CHANGSHU PINGFANG WHEELCHAIR CO LTD
Current assignee: CHANGSHU PINGFANG WHEELCHAIR CO LTD
Priority date: 2013-04-15
Filing date: 2013-04-15
Publication date: 2013-08-28
Anticipated expiration: 2023-04-15

Abstract

The utility model discloses an electric wheelchair with liftable armrests and belongs to the technical field of daily necessities. The electric wheelchair comprises a seat, a chair back, the armrests, chair back supporting tubes and armrest supporting tubes, wherein one armrest, one chair back supporting tube and one armrest supporting tube are arranged on each of the two sides of the seat, one ends of the chair back supporting tubes are hinged with the chair back, and the other ends of the chair back supporting tubes are hinged with the seat. The electric wheelchair is characterized in that one ends of the chair back supporting tubes on the two sides are hinged with one ends of rotating arms respectively, one ends of the armrest supporting tubes are hinged with middle portions of the rotating arms, the other ends of the armrest supporting tubes are hinged with the seat, and armrest locking mechanisms are arranged on the armrests on the two sides and matched with the other ends of the rotating arms. The armrests and the rotating arms can be locked or unlocked, and the armrests can be lifted when the armrests and the rotating arms are unlocked, so that a patient can sit on the seat from one side; and the patient sits on the seat from the side, so that the stability of the electric wheelchair is good, overturning situations can be avoided, and the safety can be guaranteed.

Description

The liftable electric wheel-chair vehicle of handrail

Technical field

This utility model belongs to the daily living article technical field, is specifically related to the liftable electric wheel-chair vehicle of a kind of handrail.

Background technology

Electric wheel-chair vehicle is called for short electric wheelchair again, be special population such as people with disability, old and weak person, limbs wounded body and/or medical clinical rehabilitation patient's walking-replacing tool, and be no lack of in disclosed patent documentation about the technical information of electric wheel-chair vehicle and be seen in, slightly with exemplify as Chinese patent Granted publication CN2745544Y(multifunctional electric wheelchair), CN201379725Y(keeps away the barrier electric wheel-chair vehicle), the CN101589979B(multifunctional electric wheelchair), the CN201684098U(electric wheel-chair vehicle), CN202198767Y(four wheel electronic car) and the CN202682214U(electric wheelchair) and the CN202682215U(electric wheel-chair vehicle), etc.

Be not limited to the above-mentioned patent scheme that exemplifies and have corresponding technique effect separately, and has common characteristic in macrostructure, be example with the pair of armrests, nearly all be that handrail is simultaneously hinged with back support pipe and handrail stay pipe, specifically, the upper end of back support pipe is connected with the chair back, and it is hinged with handrail, and the lower end of back support pipe and seat support are hinged, and upper end and the handrail of handrail stay pipe are hinged, and lower end and seat support are hinged.The electric wheel-chair vehicle of this version is owing to the position of pair of armrests can't change once assembling, namely, all the time correspond respectively to the both sides of car body with parallel state, thereby in the use of reality, there is a difficult puzzlement of getting on the bus, because many people with disabilitys particularly high paraplegia patient are difficult to the front usually and get on the bus, often by the person of accompanying and attending to its armful to the chair of electric wheel-chair vehicle, if and gesture figure independently gets on the bus, and the edge of bed that the patient couches is aimed in the chair front of electric wheel-chair vehicle, the chair front of electric wheel-chair vehicle is docked with edge of bed, and the patient just moves to chair from the bed.But because the positive edge of bed of aiming at of chair, therefore the stability of electric wheel-chair vehicle can't guarantee, because when the patient contacts with chair, be not positioned at the center of chair because of center of gravity, but be positioned at the edge in chair front, so the situation that electric wheel-chair vehicle can occur tumbling forward causes the patient to fall to terrace, even cause the traumatic injury accident.In addition, even if by the person of accompanying and attending to the patient is embraced to chair, owing to need the front to go into to sit, therefore comparatively require great effort.

In view of above-mentioned prior art, be necessary to be improved, the applicant has done positive and useful design for this reason, has formed technical scheme described below finally, and is taking to the experiment proved that it is practicable under the necessary secrecy provision.

Summary of the invention

Task of the present utility model is to provide a kind of and helps to satisfy the patient side and get on the bus and require and use and avoid chair to lose center of gravity causing the liftable electric wheel-chair vehicle of handrail of overturning and ensureing patient safety.

Task of the present utility model is finished like this, the liftable electric wheel-chair vehicle of a kind of handrail, comprise seat support, the chair back, be positioned at a side of chair and each handrail of opposite side, be positioned at each back support pipe of a side of seat support and opposite side and be positioned at a side of seat support equally and respectively handrail stay pipe of opposite side, one end and the chair back of back support pipe are hinged, the other end and seat support are hinged, be characterised in that: an end that respectively is hinged with a pivoted arm at a described end of the back support pipe of a described side and opposite side, one end of described handrail stay pipe and the middle part of pivoted arm are hinged, and the other end of handrail stay pipe and described seat support are hinged, respectively be provided with a handrail locking mechanism that is used for handrail locking or release on the handrail of a described side and opposite side, this handrail locking mechanism matches with the other end of pivoted arm.

In a specific embodiment of the present utility model, a described end of described pivoted arm is hinged by a described end of first bearing pin and described back support pipe, described end at described handrail stay pipe fixedly has a rebound, the described middle part of described pivoted arm is hinged by second bearing pin and rebound, and offer a lock hole at the end face of the described other end of pivoted arm, described handrail has a handrail tube towards a side of described seat support, described handrail locking mechanism is arranged on the handrail tube, and matches with described lock hole.

In another specific embodiment of the present utility model, described handrail locking mechanism comprises plug housing, latch, spring and latch are dialled handle, plug housing and described handrail tube are fixed, and this plug housing constitutes a latch chamber, latch is arranged on the latch intracavity, and an end of this latch leans out the latch chamber and dials being connected with described latch, and the other end of latch matches with described lock hole after leaning out the latch chamber, spring is nested with at the middle part of latch and is positioned at the latch intracavity, one end bearing of this spring is on the chamber wall of an end in latch chamber, and the other end of spring is bearing on the chamber wall of the other end in latch chamber, latch is dialled having a latch Connection Block, and this latch Connection Block is connected with a described end pivoting of described latch.

In another specific embodiment of the present utility model, described end at described latch offers a latch connecting hole, and offering the Connection Block connecting hole at described latch Connection Block, a described end of latch probes into the latch Connection Block and is being connected with the latch Connection Block corresponding to the position of the position of Connection Block connecting hole and the latch connecting hole described end with latch by connecting axle.

The technical scheme that this utility model provides is owing to set up pivoted arm and handrail locking mechanism, thereby can or unlock handrail and pivoted arm locking, when handrail and pivoted arm unlock, handrail can be started, so that the patient enters on the seat support from the side, and owing to enter from the side, so the good stability of electric wheel-chair vehicle, can not occurring tumbles overturns situation, to guarantee safety.

Description of drawings

Fig. 1 is example structure figure of the present utility model.

Fig. 2 is the side view of Fig. 1.

State diagram when Fig. 3 starts for handrail.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to this utility model scheme to the description of embodiment, any according to this utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

See also Fig. 1 and Fig. 2, provided seat support 1, the chair back 2 of the structural system of electric wheel-chair vehicle, a side that is positioned at seat support 1 and opposite side (being left side and the right side of location status shown in Figure 1) each handrail 3, a side that is positioned at seat support 1 and opposite side each back support pipe 4 and be positioned at a side of seat support 1 equally and each handrail stay pipe 5 of opposite side, one end of back support pipe 4 is that upper end and the chair back 2 of location status shown in Figure 1 is hinged, and that the other end is lower end and the seat support 1 of location status shown in Figure 1 is hinged.

The technical essential of the technical scheme that provides as this utility model: the end (upper end) at the back support pipe 4 of an aforesaid side that is positioned at seat support 1 and opposite side respectively uses first bearing pin 61 to be hinged with an end of a pivoted arm 6, be that the upper end of location status shown in Figure 1 is welded with a rebound 51 at an end of handrail stay pipe 5, the nearly middle part of pivoted arm 6 is hinged by second bearing pin 62 and this rebound 51, and offers a lock hole 63 at the end face of the other end of pivoted arm 6.Aforesaid handrail 3 has a handrail tube 31(metal tube), at this handrail tube 31 a handrail locking mechanism 7 is arranged fixedly, handrail locking mechanism 7 matches with aforesaid lock hole 63.Specifically, when handrail locking mechanism 7 remove with pivoted arm 6 on the cooperating of lock hole 63 time, then handrail 3 is discharged, the side of 3 pairs of seat supports 1 of handrail is opened, otherwise with routine.

Please continue to see Fig. 1 and Fig. 2, aforesaid handrail locking mechanism 7 preferably but not the structure that definitely is limited to is as follows; Comprise that plug housing 71, latch 72, spring 73 and latch dial 74, plug housing 71 is preferably solid towards a face down bonding of following (user mode is example) with mode and the aforesaid handrail tube 31 of welding, this plug housing 71 constitutes a latch chamber 711, latch 72 is arranged in this latch chamber 711, and an end of latch 72 leans out latch chamber 711, offers a latch connecting hole 721 at this end.Spring 73 is nested with at the middle part of latch 72, and is positioned at latch chamber 711, and an end bearing of this spring 73 is on the chamber wall of an end in latch chamber 711, and the other end of spring 73 is bearing on the chamber wall of the other end in latch chamber 711.Latch is dialled has a latch Connection Block 741 to 74, offer Connection Block connecting hole 7411 at this latch Connection Block 741, after an aforementioned end of latch 72 probes into latch Connection Block 741, offer Connection Block connecting hole 7411 at this latch Connection Block 741, after an aforementioned end of latch 72 probes into latch Connection Block 741, insert Connection Block connecting hole 7411 and latch connecting hole 721 successively with connecting axle 7211, realize 74 being connected with latch 72 thereby latch dialled.

See also Fig. 3 and still in conjunction with Fig. 1 and Fig. 2, the applicant describes the release to handrail 3, pull exhibition to 74 towards the direction that deviates from plug housing 71 when by user latch being dialled, thereby drive latch 72 displacements by latch Connection Block 741 through connecting axle 7211, spring 73 compressions, make latch 72 withdraw from lock hole 63 on the pivoted arm 6, under this state, handrail 3 can be started, make handrail 3 avoid stopping the side of seat support 1.So under the state that the edge of bed that seat support 1 and patient couch is fitted, the patient just can move to seat support 1 from berth safely, then latch 72 is resetted, namely door bolt is gone into aforesaid lock hole 63.

In sum, because this utility model scheme has been taked human oriented design, thereby satisfied the particularly high paraplegia patient requirement that enters seat support 1 from the side of electric wheel-chair vehicle of patient, again because the stability of the side of seat support 1 is more much better than positive, situation can not appear overturning usually, thereby can ensure safety, take place to avoid accident.

Claims

1. The liftable electric wheel-chair vehicle of a kind of handrail, comprise seat support (1), the chair back (2), be positioned at a side of chair (1) and each handrail (3) of opposite side, be positioned at each back support pipe (4) of a side of seat support (1) and opposite side and be positioned at a side of seat support (1) equally and respectively handrail stay pipe (5) of opposite side, one end of back support pipe (4) and the chair back (2) are hinged, the other end and seat support (1) are hinged, it is characterized in that: an end that respectively is hinged with a pivoted arm (6) at a described end of the back support pipe (4) of a described side and opposite side, the middle part of one end of described handrail stay pipe (5) and pivoted arm (6) is hinged, and the other end of handrail stay pipe (5) and described seat support (1) are hinged, respectively be provided with a handrail locking mechanism (7) that is used for handrail (3) locking or release on the handrail (3) of a described side and opposite side, this handrail locking mechanism (7) matches with the other end of pivoted arm (6).

2. The liftable electric wheel-chair vehicle of handrail according to claim 1, a described end that it is characterized in that described pivoted arm (6) is hinged with a described end of described back support pipe (4) by first bearing pin (61), described end at described handrail stay pipe (5) fixedly has a rebound (51), the described middle part of described pivoted arm (6) is hinged by second bearing pin (62) and rebound (51), and offer a lock hole (63) at the end face of the described other end of pivoted arm (6), described handrail (3) has a handrail tube (31) towards a side of described seat support (1), described handrail locking mechanism (7) is arranged on the handrail tube (31), and matches with described lock hole (63).

3. The liftable electric wheel-chair vehicle of handrail according to claim 2, it is characterized in that described handrail locking mechanism (7) comprises plug housing (71), latch (72), spring (73) and latch are dialled (74), plug housing (71) is fixing with described handrail tube (31), and this plug housing (71) constitutes a latch chamber (711), latch (72) is arranged in the latch chamber (711), and an end of this latch (72) leans out latch chamber (711) and described latch and dials (74) are connected, and the other end of latch (72) matches with described lock hole (63) after leaning out latch chamber (711), spring (73) is nested with at the middle part of latch (72) and is positioned at latch chamber (711), one end bearing of this spring (73) is on the chamber wall of an end of latch chamber (711), and the other end of spring (73) is bearing on the chamber wall of the other end in latch chamber (711), latch is dialled has a latch Connection Block (741) to (74), and this latch Connection Block (741) is connected with a described end pivoting of described latch (72).

4. The liftable electric wheel-chair vehicle of handrail according to claim 3, it is characterized in that offering a latch connecting hole (721) at a described end of described latch (72), and offering Connection Block connecting hole (7411) at described latch Connection Block (741), a described end of latch (72) probes into latch Connection Block (741) and is being connected with latch Connection Block (741) corresponding to the position of the position of Connection Block connecting hole (7411) and latch connecting hole (721) the described end with latch (72) by connecting axle (7211)