CN110302017B

CN110302017B - Intelligent wheelchair

Info

Publication number: CN110302017B
Application number: CN201910484801.2A
Authority: CN
Inventors: 吴娟
Original assignee: Affiliated Hospital of Nantong University
Current assignee: Affiliated Hospital of Nantong University
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-06-12
Anticipated expiration: 2039-06-05
Also published as: CN110302017A

Abstract

The invention discloses an intelligent wheelchair, which comprises a chair frame, a chair seat, a chair back, main travelling wheels positioned at the rear side of the chair frame and auxiliary wheels positioned at the front side of the chair frame, wherein handles are arranged at two sides of the chair seat, and hidden folding components are arranged on the handles; the hidden folding component forms a pushing handle positioned at the front side of the chair frame after being unfolded; the chair back is provided with a safety belt and a safety belt socket; the safety belt socket is arranged on one side of the chair back facing the main travelling wheel; a driving piece is arranged on the safety belt socket; the chair back is provided with a linkage component; after the safety belt is inserted into the safety belt socket, the driving piece drives the traveling wheel locking piece to unlock through the linkage assembly; after the safety belt breaks away from the safety belt socket, the driving piece drives the locking piece of the walking wheel to lock through the linkage assembly. The invention improves the use safety of the wheelchair.

Description

Intelligent wheelchair

Technical Field

The invention relates to a wheelchair, in particular to an intelligent wheelchair.

Background

The wheelchair is used as a transfer tool for people who are inconvenient to walk, and is particularly more commonly used in medical institutions, nursing homes for the elderly and the like. Although the wheelchair can practically solve the problem of transportation of people who are inconvenient to walk, potential safety hazards exist in the use of the wheelchair.

The wheelchairs generally used at present are equipped with safety protection measures (safety belts), and the wheelchairs are often neglected by some users in the actual use process, so that the wheelchair-sitting person has the risk of falling down from the wheelchair in the transfer process, especially when the wheelchair-sitting person bumps on the road or goes up and down the slope, the safety of the wheelchair-sitting person is seriously influenced, once the wheelchair-sitting person falls down, the wheelchair-sitting person is harmed by a light person, and the wheelchair-sitting person is damaged to different degrees by a heavy person, even the life is directly endangered. Therefore, in order to avoid the risk and even serious tragedy, the intelligent wheelchair is designed, the wheelchair can be operated only after safety measures are executed, and the physical and mental health of the masses of people can be ensured or the accidental injury to patients suffering from diseases can be avoided.

In addition, the wheelchair-pushing person faces the back of the wheelchair-sitting person in the use process of the existing wheelchair, so that unsafe factors exist in the condition of the wheelchair-sitting person, and particularly, the patient in a medical institution cannot find out sudden illness changes in time and can delay diagnosis and treatment of the patient, so that the wheelchair which can be used for the wheelchair-pushing person and the wheelchair-sitting person to communicate face to face in the operation process of the wheelchair is very necessary to design.

Disclosure of Invention

The invention aims to provide an intelligent wheelchair, which improves the use safety of the wheelchair.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an intelligence wheelchair, includes chair frame, seat support, the back of the chair, is located the main walking wheel of chair frame rear side and is located the auxiliary wheel of chair frame front side, its characterized in that: handles are arranged on two sides of the chair seat, and hidden folding components are arranged on the handles; the hidden folding component forms a pushing handle positioned on the front side of the chair frame after being unfolded;

the chair back is provided with a safety belt and a safety belt socket; the safety belt socket is arranged on one side of the chair back facing the main travelling wheel; a driving piece is arranged on the safety belt socket; the chair back is provided with a linkage assembly; after the safety belt is inserted into the safety belt socket, the driving piece drives the traveling wheel locking piece to unlock through the linkage assembly; when the safety belt is separated from the safety belt socket, the driving piece drives the locking piece of the travelling wheel to be locked through the linkage assembly; the driving piece comprises a driving rod and a contraction spring; a through hole is formed in one side of the safety belt socket; one end of the driving rod is positioned in the safety belt socket and fixedly connected with the arc-shaped stop block, and the other end of the driving rod is positioned outside the safety belt socket and connected with the baffle; a contraction spring is sleeved on the periphery of the driving rod; one end of the retraction spring is fixed on the outer side of the safety belt socket, and the other end of the retraction spring is fixed on the baffle; the contraction spring is of a detachable structure;

the linkage assembly comprises a connecting rod, a rotating shaft and a return spring; the outer side of the chair back is fixedly provided with a mounting frame; the connecting rod is rotatably connected with the mounting frame through a rotating shaft; the connecting rod is also connected with the chair back through a return spring;

the outer side of the baffle is contacted with the upper end of the connecting rod;

further, the rotating shaft is positioned at one third position above the connecting rod; the mounting frame is positioned below the safety belt socket; the reset spring is arranged below the mounting frame, one end of the reset spring is fixed on the chair back, and the other end of the reset spring is fixed on the connecting rod.

Furthermore, the walking wheel locking part comprises an annular fixing plate arranged on the inner side of the main walking wheel and a locking head arranged at the bottom of the connecting rod of the linkage assembly; the annular fixing plate is provided with a plurality of locking holes along the circumferential direction.

Further, the seat belt socket includes a housing; the outer shell is fixedly arranged on the outer side of the chair back, and the top of the outer shell is provided with a socket for inserting the safety belt plug-in; the plug-in components matched with the safety belt sockets on the safety belt are of circular structures.

Further, the hidden folding component comprises a supporting arm hinged on the handle and a hidden push handle arranged in the supporting arm; a cavity for accommodating the hidden push handle is arranged in the supporting arm; one end of the hidden push handle is rotatably arranged in the cavity of the supporting arm.

Furthermore, the hidden push handle is also connected with the supporting arm through a positioning component; the positioning assembly comprises positioning holes arranged at two sides of the cavity of the supporting arm, a telescopic column arranged on the hidden push handle, a positioning pressing plate fixedly arranged at the end part of the telescopic column and a positioning clamping head fixed on the positioning pressing plate; the telescopic column is sleeved with a telescopic spring; one end of the telescopic spring is fixed on the hidden push handle, and the other end of the telescopic spring is fixed on the positioning pressing plate.

The invention has the beneficial effects that: the wheelchair can be normally used only when the plug-in of the safety belt is correctly inserted into the safety belt slot after the safety belt is worn, so that potential safety hazards caused by neglecting the use of the safety belt of a patient are avoided.

The medical care personnel can push the wheelchair facing the patient, so that the condition of the patient sitting on the wheelchair can be observed conveniently, and the condition change of the patient cannot be found timely, so that the diagnosis and treatment of the patient are delayed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the unlocked state.

Fig. 3 is a schematic view of the locked state.

Fig. 4 is a schematic view of the hidden folding assembly after folding.

Fig. 5 is a schematic view of the hidden folding assembly after opening.

FIG. 6 is a schematic view of a positioning assembly.

Detailed Description

The technical solution of the present invention will be clearly and completely described by the following detailed description.

As shown in fig. 1-6, an intelligent wheelchair of the present invention comprises a frame, a seat, a backrest, main traveling wheels 9 located at the rear side of the frame, and auxiliary wheels located at the front side of the frame, wherein handles 1 are disposed at two sides of the seat, and hidden folding assemblies 7 are disposed on the handles 1; the hidden folding component forms a pushing handle positioned at the front side of the chair frame after being unfolded. The existing wheelchair push handles are arranged on the rear side of the chair back, and medical workers push the wheelchair behind the chair back, so that the condition of a patient is inconvenient to observe. This application sets up hidden folding assembly 7 on the pushing hands, and medical personnel can promote the wheelchair before the wheelchair, and the patient sits on the wheelchair, and in the face of medical personnel, the real-time observation patient condition of being convenient for.

The hidden folding assembly 7 of the present invention comprises a supporting arm 71 hinged on the handle and a hidden push handle 72 arranged in the supporting arm 71; a cavity for accommodating the hidden push handle 72 is arranged in the supporting arm 71; one end of the hidden push handle 72 is rotatably mounted in the cavity of the support arm 71. The hidden push handle 72 is also connected with the supporting arm 1 through a positioning component; the positioning assembly comprises positioning holes 81 arranged at two sides of the cavity of the supporting arm, a telescopic column 82 arranged on the hidden push handle 72, a positioning pressing plate 83 fixedly arranged at the end part of the telescopic column and a positioning chuck 84 fixed on the positioning pressing plate 83; the telescopic column 82 is sleeved with a telescopic spring 85; one end of the expansion spring is fixed on the hidden push handle 72, and the other end is fixed on the positioning pressure plate 83.

Normally, the supporting arm is placed above the handle, the pushing handle is also hidden in the cavity of the supporting arm, when the medical staff pushes the wheelchair from the front side of the wheelchair, the supporting arm is rotated, as shown in fig. 5, then the hidden pushing handle 72 in the supporting arm is rotated out, when the hidden pushing handle 72 is rotated to be vertical to the supporting arm, the positioning chuck 84 on the positioning press plate 83 is right opposite to the positioning holes on the two sides of the supporting arm, the positioning chuck 84 is clamped in the positioning holes under the action of the telescopic column 82 and the telescopic spring, and the hidden pushing handle 72 is fixed at the vertical position.

When the recovery is needed, the positioning pressing plate 83 is pressed, the telescopic column and the telescopic spring retract, the positioning chuck 84 is separated from the positioning hole, and the hidden push handle 72 can rotate into the supporting arm. The wheelchair is used as a common wheelchair.

The invention is provided with a safety belt 2 and a safety belt socket 3 on the chair back; the safety belt socket 3 is arranged on one side of the chair back facing the main travelling wheel; a driving piece 4 is arranged on the safety belt socket 3; the chair back is provided with a linkage component 5; after the safety belt is inserted into the safety belt socket, the driving piece drives the traveling wheel locking piece to unlock through the linkage assembly; after the safety belt breaks away from the safety belt socket, the driving piece drives the locking piece of the walking wheel to lock through the linkage assembly.

The seatbelt buckle 3 of the present invention includes a housing 31; the outer shell 31 is fixedly arranged on the outer side of the chair back, and the top of the outer shell is provided with a socket 32 for inserting a safety belt plug-in; the plug-in components matched with the safety belt sockets 3 on the safety belt 2 are of circular structures.

The driving member 4 of the present invention includes a driving lever 41 and a contraction spring 42; a through hole 43 is arranged at one side of the safety belt socket 3; one end of the driving rod 41 is positioned in the safety belt socket 3 and fixedly connected with the arc-shaped stop block 44, and the other end is positioned outside the safety belt socket 3 and connected with the baffle 45; a contraction spring 42 is sleeved on the periphery of the driving rod 41; one end of the retraction spring 42 is fixed to the outside of the seat belt socket 3, and the other end is fixed to the flap 45. The linkage assembly 5 comprises a connecting rod 51, a rotating shaft 52 and a return spring 53; the outer side of the chair back is fixedly provided with a mounting frame 54; the connecting rod 51 is rotatably connected with the mounting rack 54 through a rotating shaft 52; the connecting rod 51 is also connected with the chair back through a return spring 53. The preferred rotating shaft is positioned at one third position above the connecting rod; the mounting bracket 54 is positioned below the safety belt socket 3; the return spring 53 is arranged below the mounting frame 54, one end of the return spring 53 is fixed on the chair back, and the other end of the return spring 53 is fixed on the connecting rod. The outer side of the baffle 45 is contacted with the upper end of the connecting rod 51;

retraction spring 42 and return spring 53 are each of a removable construction.

The walking wheel locking piece of the invention comprises an annular fixing plate 61 arranged at the inner side of a main walking wheel and a locking head 62 arranged at the bottom of a connecting rod of a linkage assembly; the annular fixing plate 61 is provided with a plurality of locking holes 63 along the circumferential direction thereof.

After a patient sits on the wheelchair, the wheelchair needs to be provided with a safety belt, the wheelchair can normally move only after the safety belt is normally worn, and otherwise, the wheelchair is locked and cannot run.

After the plug-in unit of the safety belt is inserted into the socket of the safety belt, the driving rod of the driving piece moves towards the outside of the shell under the extrusion pushing of the plug-in unit, the connecting rod rotates under the pushing of the driving rod, the upper part of the connecting rod inclines towards one side of the main travelling wheel, the lower part of the connecting rod drives the locking head 62 to be far away from the annular fixing plate 61, the locking head 62 is separated from the locking hole 63, unlocking is carried out, and the main travelling wheel can normally run.

If the plug-in of the safety belt is not inserted into the socket of the safety belt, the lower part of the connecting rod drives the locking head 62 to be clamped in the locking hole 63, and the main travelling wheel cannot normally run.

The intelligent wheelchair improves the use safety of the wheelchair.

The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.

Claims

1. The utility model provides an intelligence wheelchair, includes chair frame, seat support, the back of the chair, is located the main walking wheel of chair frame rear side and is located the auxiliary wheel of chair frame front side, its characterized in that: handles (1) are arranged on two sides of the chair seat, and a hidden folding component (7) is arranged on each handle (1); the hidden folding component forms a pushing handle positioned on the front side of the chair frame after being unfolded;

the seat back is provided with a safety belt (2) and a safety belt socket (3); the safety belt socket (3) is arranged on one side of the chair back facing the main travelling wheel; a driving piece (4) is arranged on the safety belt socket (3); the chair back is provided with a linkage component (5); after the safety belt is inserted into the safety belt socket, the driving piece drives the traveling wheel locking piece to unlock through the linkage assembly; when the safety belt is separated from the safety belt socket, the driving piece drives the locking piece of the travelling wheel to be locked through the linkage assembly;

the driving piece (4) comprises a driving rod (41) and a contraction spring (42); a through hole (43) is formed in one side of the safety belt socket (3); one end of the driving rod (41) is positioned in the safety belt socket (3) and fixedly connected with the arc-shaped stop block (44), and the other end of the driving rod is positioned outside the safety belt socket (3) and connected with the baffle (45); a contraction spring (42) is sleeved on the periphery of the driving rod (41); one end of the retraction spring (42) is fixed on the outer side of the safety belt socket (3), and the other end of the retraction spring is fixed on the baffle plate (45); the contraction spring (42) is of a detachable structure;

the linkage assembly (5) comprises a connecting rod (51), a rotating shaft (52) and a return spring (53); a mounting rack (54) is fixedly arranged on the outer side of the chair back; the connecting rod (51) is rotatably connected with the mounting rack (54) through a rotating shaft (52); the connecting rod (51) is also connected with the chair back through a return spring (53); the rotating shaft is positioned at one third position above the connecting rod; the mounting frame (54) is positioned below the safety belt socket (3); the reset spring (53) is arranged below the mounting frame (54), one end of the reset spring (53) is fixed on the chair back, and the other end of the reset spring (53) is fixed on the connecting rod;

the outer side of the baffle (45) is contacted with the upper end of the connecting rod (51);

the walking wheel locking part comprises an annular fixing plate (61) arranged on the inner side of the main walking wheel and a locking head (62) arranged at the bottom of a connecting rod of the linkage assembly; the annular fixing plate (61) is provided with a plurality of locking holes (63) along the circumferential direction;

the safety belt socket (3) comprises a shell (31); the outer shell (31) is fixedly arranged on the outer side of the chair back, and the top of the outer shell is provided with a socket (32) for inserting a safety belt plug-in; the plug-in components matched with the safety belt sockets (3) on the safety belt (2) are of circular structures.

2. The intelligent wheelchair as claimed in claim 1, wherein: the hidden folding component (7) comprises a supporting arm (71) hinged on the handle and a hidden push handle (72) arranged in the supporting arm (71); a cavity for accommodating the hidden push handle (72) is arranged in the supporting arm (71); one end of the hidden push handle (72) is rotatably arranged in the cavity of the supporting arm (71).

3. The intelligent wheelchair as claimed in claim 2, wherein: the hidden push handle (72) is also connected with the supporting arm (1) through a positioning component; the positioning assembly comprises positioning holes (81) arranged at two sides of the cavity of the supporting arm, a telescopic column (82) arranged on the hidden push handle (72), a positioning pressing plate (83) fixedly arranged at the end part of the telescopic column and a positioning clamping head (84) fixed on the positioning pressing plate (83); a telescopic spring (85) is sleeved outside the telescopic column (82); one end of the expansion spring is fixed on the hidden push handle (72), and the other end is fixed on the positioning pressure plate (83).