CN215385305U - Multifunctional wheelchair - Google Patents

Abstract

The utility model discloses a multifunctional wheelchair, and belongs to the field of wheelchairs. Wherein, the wheelchair body includes: a seat frame; the bottom end of the backrest frame is hinged with the seat frame; the front wheels are arranged below the seat frame and positioned at the left side and the right side of the seat frame; the first connecting rods are arranged on the left side and the right side of the backrest frame, and the top ends of the first connecting rods are hinged with the backrest frame; the rear end of the arc rocker is hinged with the bottom end of the first connecting rod; the second connecting rods are arranged on the left side and the right side of the seat frame, the top ends of the second connecting rods are connected with the seat frame, and the bottom ends of the second connecting rods are hinged with the front ends of the arc-shaped rockers; the top end of the gas spring is hinged with the backrest frame, the bottom end of the gas spring is hinged with the seat frame, and the gas spring comprises a control switch for controlling the gas spring to work; and the folding mechanism is respectively connected with the front wheel and the seat frame to drive the front wheel to swing. The wheelchair can facilitate the old and the disabled who are inconvenient to move to independently complete the conversion between the wheelchair and the rocking chair, and overcomes the problem of unstable gravity center when the old and the disabled sit on the wheelchair to convert the two states of the wheelchair and the rocking chair.

Description

Multifunctional wheelchair

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a multifunctional wheelchair.

Background

At present, the demand of wheelchairs in the market is increasing day by day, but the function of the wheelchairs is still single. With the development of science and technology, wheelchairs with rocking chair functions have been produced. However, when using such a wheelchair, it is difficult for the elderly and the disabled who are not mobile to independently switch between the wheelchair and the rocking chair, and there is a problem that the center of gravity is unstable when the elderly and the disabled sit on the wheelchair and switch between the wheelchair and the rocking chair.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a multifunctional wheelchair that solves one or more of the problems of the prior art and provides at least one of the advantages of the present invention.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a multifunctional wheelchair, which comprises a wheelchair body, wherein the wheelchair body comprises:

a seat frame;

the bottom end of the backrest frame is hinged with the seat frame;

front wheels which are arranged below the seat frame and are respectively positioned on the left side and the right side of the seat frame;

the first connecting rod is respectively arranged on the left side and the right side of the backrest frame, and the top end of the first connecting rod is hinged with the backrest frame;

the rear end of the arc-shaped rocker is hinged with the bottom end of the first connecting rod;

the top end of the second connecting rod is connected with the seat frame, and the bottom end of the second connecting rod is hinged with the front end of the arc-shaped rocker;

the top end of the gas spring is hinged with the backrest frame, and the bottom end of the gas spring is hinged with the seat frame; the gas spring comprises a control switch for controlling the gas spring to work;

and the folding mechanism is respectively connected with the front wheel and the seat frame and is used for driving the front wheel to swing.

The design that the backrest frame is hinged with the seat frame is adopted, so that the state conversion between the rocking chair and the wheelchair is favorably realized. The rear end of the arc-shaped rocker is connected to the backrest frame through the first connecting rod, the front end of the arc-shaped rocker is connected to the seat frame through the second connecting rod, and the arc-shaped rocker is driven to change in two positions of falling to the ground or leaving the ground when the backrest frame swings up and down, so that a user can conveniently switch the states of the rocking chair and the wheelchair.

The arrangement of the gas spring can effectively support the backrest frame, and the inclination angle of the backrest frame is adjusted through the telescopic action of the gas spring so as to improve the comfort of a user; moreover, when a user leans against the backrest, the arc-shaped rocker is controlled to slowly swing downwards through the air spring, the user leaves the backrest and slowly swings upwards through the arc-shaped rocker controlled by the air spring, and the problem of unstable gravity center when sitting on the wheelchair to convert the two states of the wheelchair and the rocking chair can be effectively solved by adopting the air spring design.

The folding mechanism can fold and unfold the front wheels, so that the front wheels can play a supporting role in a wheelchair state, and the front wheels are prevented from being blocked in a rocking chair state.

As a further improvement of the above technical solution, the folding mechanism includes:

the fixed support is horizontally arranged, the fixed support is respectively arranged on the left side and the right side of the seat frame, and the fixed support is connected with the seat frame; the fixed support is provided with a limiting hole, and two ends of the limiting hole are arranged in a front-back manner;

the bottom end of the supporting rod is connected with the front wheel, and the top end of the supporting rod is hinged with the fixed support;

the sliding rod is arranged in the limiting hole in a left-right horizontal mode in the axial direction, and can move back and forth along the length direction of the limiting hole;

one end of the connecting piece is hinged with the supporting rod, and the other end of the connecting piece is connected with the sliding rod;

the locking piece, its with the fixed bolster is connected, the locking piece with the slide bar joint.

The front and back swing of the front wheel can be realized by adopting the rotatable connection of the supporting rod and the fixed support, and the front and back swing is beneficial to realizing the retraction operation of the front wheel. The connecting piece is respectively hinged with the supporting rod and the sliding rod, the sliding rod can slide back and forth along the limiting hole, the locking piece can be clamped with the sliding rod, and when the sliding rod moves to the front end of the limiting hole and is locked by the locking piece, the front wheel can be promoted to play a supporting role in a wheelchair state; when the sliding rod moves to the rear end of the limiting hole and is locked by the locking piece, the front wheel can be prevented from being blocked and influenced in the state of the rocking chair.

As a further improvement of the above technical solution, the cross-sectional shape of the sliding rod is circular. The cross section of the sliding rod is designed to be circular, so that the friction force of the sliding rod in the limiting hole can be reduced, and the operation of the old is facilitated.

As a further improvement of the above technical solution, the locking member is a locking piece; the locking block is provided with a hinge shaft which is horizontal left and right, the hinge shaft is connected with the fixed bracket, and the hinge shaft is positioned below the limiting hole; the long end of the locking block is provided with an arc-shaped end face, the long end of the locking block is clamped with the sliding rod, and the long end of the locking block is abutted to the fixed support; the short end of the locking block can be abutted against the fixed support.

The locking piece passes through the articulated shaft and connects in fixed bolster to, the long end of locking piece sets up the arc terminal surface, contacts through the periphery of arc terminal surface with the slide bar, and at this moment, the long end of locking piece is located the top of slide bar, realizes slide bar and locking piece joint, can play stable, powerful supporting role in order to ensure the front wheel. The short end of the locking block is acted upwards, so that the long end of the locking block can be made to swing downwards until the long end of the locking block is positioned below the sliding rod, the blocking effect of the locking block on the sliding rod is relieved, the sliding rod can conveniently move to the rear side of the limiting hole, and the front wheel can be folded; and the short end of the locking block is pressed against the fixed bracket because the long end of the locking block is heavier than the short end of the locking block, so that the short end of the locking block blocks the sliding rod, and the blocking influence caused by the fact that the front wheel swings downwards in the rocking chair state is avoided.

As a further improvement of the technical scheme, the fixing support is provided with a groove with a downward opening, the limiting holes are respectively formed in the left side and the right side of the groove, and the locking block is arranged in the groove. The arrangement of the groove is beneficial to enhancing the connection strength of the sliding rod and the fixed support, and also enhances the connection strength of the locking block and the fixed support, so that the locking block can bear the large acting force from the sliding rod for a long time, and the service life of the folding mechanism is prolonged.

As a further improvement of the above technical solution, the locking member is a blocking rod; the stop rod is vertically arranged, a step hole is formed in the top of the fixed support, the stop rod is arranged in the step hole, and the bottom end of the stop rod is connected with the sliding rod in a clamping mode. Set up the step hole on fixed bolster to use and block the pole and insert the step hole from top to bottom, can block the slide bar after blocking the pole and move down to the target in place, when the card that blocks the pole to the slide bar was kept off to needs is relieved, only need to block the pole and up lift, very make things convenient for old man and disabled person's operation.

As a further improvement of the above technical solution, the locking member is a locking screw; the locking screw rod is vertical, the locking screw rod is connected with the fixed support, and the bottom end of the locking screw rod is connected with the sliding rod in a clamping mode. The screw holes are formed in the fixing support, the locking screw rods are screwed into the screw holes, and therefore the sliding rods are clamped, a powerful blocking effect can be achieved, stronger connection strength between the locking screw rods and the fixing support can be guaranteed, and the locking screw rods are prevented from being separated from the fixing support when the rocking chair or the wheelchair is used.

As a further improvement of the technical scheme, the connecting pieces are respectively arranged on the left side and the right side of the supporting rod, and the two connecting pieces are respectively connected with the two ends of the sliding rod. Set up two connecting pieces, can effectively alleviate the effort that receives of single connecting piece, improve folding mechanism's stability and security.

As a further improvement of the above technical solution, the control switch is a button, and the control switch is provided on the left side or the right side of the seat frame. The design of the button is adopted and the button is arranged on the left side or the right side of the seat frame, so that a user can conveniently control the air spring to work through the button, and the wheelchair and the rocking chair can be switched between two states at will.

As a further improvement of the above technical solution, a hinge joint of the gas spring and the back frame is disposed at a front side of a hinge joint of the first connecting rod and the back frame. The connecting part of the gas spring and the backrest frame is arranged at the front side of the connecting part of the first connecting rod and the backrest frame, so that the telescopic distance of the gas spring can be shortened, on one hand, the gas spring can play a strong supporting role on the back of a user, and on the other hand, the service life of the gas spring can be greatly prolonged.

The utility model has the beneficial effects that: the utility model provides a multifunctional wheelchair which is novel in design, stable and reliable in structure, very simple and convenient to use, aims to facilitate the old and the disabled who are inconvenient to move to independently complete the conversion between the wheelchair and a rocking chair, and well solves the problem of unstable gravity when the old and the disabled sit on the wheelchair to convert the two states of the wheelchair and the rocking chair.

Drawings

The utility model is further described with reference to the accompanying drawings and examples;

FIG. 1 is a perspective view of a multi-function wheelchair in accordance with an embodiment of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a left side view of the multi-function wheelchair of the present invention in a state where the driving wheels are omitted;

FIG. 4 is a left side view of the structure of the folding mechanism in the wheelchair state in the multi-function wheelchair of the present invention;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a cross-sectional view of section A-A of FIG. 5;

FIG. 7 is a left side elevational view of the folding mechanism of the multi-function wheelchair of the present invention in a rocking chair configuration;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a cross-sectional view of section B-B of FIG. 8;

FIG. 10 is a schematic view of a multi-function wheelchair in accordance with another embodiment of the folding structure of the present invention in the wheelchair position;

FIG. 11 is a perspective view of a fixing bracket of the multi-function wheelchair of the present invention.

The drawings are numbered as follows: 110. a backrest cushion; 120. a drive wheel; 130. a front wheel; 140. a cushion; 150. a seat frame; 160. a backrest frame; 200. an arc-shaped rocker; 300. a first link; 400. A second link; 500. a folding mechanism; 510. a connecting member; 520. a slide bar; 530. a locking block; 540. fixing a bracket; 541. a groove; 542. mounting holes; 550. a limiting hole; 560. a support bar; 570. locking the screw rod; 600. a gas spring.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 11, several embodiments of the multifunctional wheelchair of the present invention will be described.

As shown in fig. 1 to 3, an embodiment of the present invention provides a multifunctional wheelchair including a wheelchair body including a seat frame 150, a back frame 160, a front wheel 130, a first link 300, an arc-shaped rocker 200, a second link 400, a gas spring 600, and a folding mechanism 500.

Wherein, the seat frame 150 may be formed by connecting a plurality of metal rods such as fine pipes. The seat frame 150 is provided with a cushion 140 to support the buttocks of the user.

The bottom end of the back frame 160 is hingedly connected to the seat frame 150 such that the back frame 160 can pivot about its connection to the seat frame 150 to facilitate the transfer between the swing and the wheelchair. The back frame 160 is provided with a back pad 110 to support the back of the user. The back frame 160 may be formed by connecting a plurality of metal rods such as fine pipes.

The front wheel 130 is disposed below the seat frame 150, and the front wheel 130 is respectively disposed at the left side and the right side of the seat frame 150, so that the front wheel 130 contacts the ground in the wheelchair state, and can provide a better supporting effect for the wheelchair body, and the wheelchair body can stably move under the action of the driving wheel 120.

The first link 300 is respectively disposed at the left side and the right side of the back frame 160, the top end of the first link 300 is hinged to the back frame 160, and the first link 300 can swing forward or backward relative to the back frame 160. The first link 300 may be a straight pipe, and the cross-sectional shape thereof may be circular.

The rear end of the arc-shaped rocker 200 is hinged to the bottom end of the first link 300, and the arc-shaped rocker 200 can swing forwards or backwards relative to the first link 300. The cross-sectional shape of the arc rocker 200 may be circular. As shown in fig. 3, the arc-shaped rocking bar 200 is concave upwards and convex downwards, and when the bottom surface of the arc-shaped rocking bar 200 is contacted with the ground, the arc-shaped rocking bar 200 can swing back and forth relative to the bottom surface. More than one connecting rod is arranged between the two arc-shaped rocking rods 200 for fixing, so that the structural stability of the arc-shaped rocking rods 200 can be enhanced. Of course, a plurality of arc rockers 200 can be provided according to actual conditions.

The second link 400 is respectively arranged at the left side and the right side of the seat frame 150, the top end of the second link 400 is connected with the seat frame 150 by a welding method or a pipe connection piece, and the second link 400 is fixed relative to the seat frame 150; the bottom end of the second connecting rod 400 is hinged with the front end of the arc-shaped rocker 200, and the arc-shaped rocker 200 can swing back and forth relative to the second connecting rod 400. The second link 400 may be a straight pipe, and the cross-sectional shape thereof may be circular.

The first connecting rod 300 is arranged between the backrest frame 160 and the arc-shaped rocker 200 for connection, and the second connecting rod 400 is arranged between the seat frame 150 and the arc-shaped rocker 200 for connection, so that the arc-shaped rocker 200 can be driven to change at two positions of landing and leaving the ground by the back-and-forth swing of the backrest frame 160, and the states of the rocking chair and the wheelchair can be switched.

The top end (i.e., the telescopic end) of the gas spring 600 is hinged to the backrest frame 160, and the bottom end (i.e., the cylinder end) of the gas spring 600 is hinged to the seat frame 150, so that when the telescopic end of the gas spring 600 is extended or retracted, the backrest frame 160 can be driven to swing forwards or backwards to complete the conversion between the wheelchair and the rocking chair states.

Preferably, the hinge joint between the gas spring 600 and the back frame 160 is disposed at the front side of the hinge joint between the first connecting rod 300 and the back frame 160, so that the expansion distance of the gas spring 600 can be shortened, on one hand, a strong supporting effect on the back of a user can be achieved, and on the other hand, the expansion end of the gas spring 600 can be prevented from being excessively extended and easily broken, thereby greatly prolonging the service life of the gas spring 600.

The gas spring 600 may be a controllable gas spring. The gas spring 600 includes a control switch for controlling the operation of the gas spring 600. The control switch may be a handle, button, or other. The control switch is provided on the left or right side of the seat frame 150. In the present embodiment, the push button is provided on the left or right side of the seat frame 150, so that the user can control the operation of the gas spring 600 through the push button, thereby performing an arbitrary switching between the wheelchair and the rocking chair.

The user leans on back frame 160 to control switch is like the button operation, presses the button, can order about back frame 160 and slowly swing backward under the effect of air spring 600, and then drives arc rocker 200 and lower the pendulum, and until arc rocker 200 reaches ground, at this moment, arc rocker 200 just is tangent with the excircle of drive wheel 120, then loosens the button, and air spring 600 just can the auto-lock, makes arc rocker 200 and back frame 160 steady fixed, thereby accomplishes wheelchair state conversion to rocking chair state.

Then, when the user's back slightly leans forward and does not apply excessive pressure to the backrest frame 160, the button of the gas spring 600 is pressed, and at this time, the acting force of the gas spring 600 is greater than the pressure of the back to the backrest frame 160, so that the telescopic end of the gas spring 600 automatically extends and drives the backrest frame 160 to swing forward, and simultaneously drives the rear end of the arc-shaped rocker 200 to swing upward and leave the ground, and the wheelchair state is converted, and at this time, the driving wheels 120 and the front wheels 130 land on the ground, thereby providing a guarantee for the stability of the wheelchair body.

The arrangement of the gas spring 600 can effectively support the backrest frame 160, and the inclination angle of the backrest frame 160 is adjusted through the telescopic action of the gas spring 600, so as to improve the comfort of a user; moreover, when a user leans against the backrest cushion 110, the arc-shaped rocker 200 is controlled to slowly swing downwards through the gas spring 600, and after the user leaves the backrest cushion 110, the arc-shaped rocker 200 is controlled to slowly swing upwards through the gas spring 600, and by adopting the design of the gas spring 600, the problem of unstable gravity when the user sits on the wheelchair to switch between a wheelchair state and a rocking chair state can be effectively solved.

As shown in fig. 1, 4 to 11, the folding mechanism 500 is connected to the front wheel 130 and the seat frame 150, respectively, for driving the front wheel 130 to swing. When the wheelchair is in the rocking chair state, the folding mechanism 500 drives the front wheels 130 to swing backwards and leave the ground, so that the front wheels 130 are prevented from obstructing the wheelchair in the rocking chair state. When the wheelchair is switched to the wheelchair state, the folding mechanism 500 drives the front wheel 130 to swing forward to reach the ground, so as to effectively support the wheelchair body.

Specifically, the folding mechanism 500 includes a fixing bracket 540, a supporting rod 560, a sliding rod 520, a connecting member 510, and a locking member.

The fixing bracket 540 is horizontally disposed, the fixing bracket 540 is respectively disposed at the left side and the right side of the seat frame 150, the fixing bracket 540 is connected with the seat frame 150 through screws, and the fixing bracket 540 is located below the cushion 140. In addition, the fixing bracket 540 is provided with a limiting hole 550, and two ends of the limiting hole 550 are arranged in front and back. The hole 550 to be limited may be a kidney-shaped hole. The fixing bracket 540 may be made of a metal material.

The bottom end of the supporting rod 560 is connected to the front wheel 130, the top end of the supporting rod 560 is hinged to the fixed bracket 540, and the supporting rod 560 can swing back and forth around the hinged position of the supporting rod and the fixed bracket 540. In this embodiment, the support rod 560 is hinged to the front end of the fixing bracket 540. The support rod 560 may be made of a metal material.

The sliding rod 520 is axially horizontally arranged left and right, and the sliding rod 520 is arranged in the limiting hole 550 and can move back and forth along the length direction of the limiting hole 550. In this embodiment, the cross-sectional shape of the sliding rod 520 is circular, and the sliding rod 520 fits into the limiting hole 550. The sliding rod 520 may be made of a metal material.

One end of the connecting member 510 is hinged to the supporting rod 560, and the other end of the connecting member 510 is connected to the sliding rod 520 by welding or screwing. In this embodiment, the connecting members 510 are respectively disposed at the left and right sides of the supporting rod 560, and the two connecting members 510 are respectively connected to the two ends of the sliding rod 520. The connecting member 510 may be made of a metal material.

When the sliding rod 520 moves forward along the limiting hole 550, the connecting member 510 moves along with the forward movement of the sliding rod 520, and the connecting member 510 drives the supporting rod 560 to swing forward, and when the sliding rod 520 moves forward to a proper position, the supporting rod 560 swings to a proper position, and the front wheel 130 reaches the ground.

When the sliding rod 520 moves backward along the limiting hole 550, the connecting member 510 moves along with the backward movement of the sliding rod 520, and the connecting member 510 drives the supporting rod 560 to swing backward, so as to fold and store the front wheel 130, and make the front wheel 130 leave the ground.

The locking member is connected to the fixing bracket 540, and the locking member is engaged with the sliding rod 520. Through the setting of locking piece, carry out the joint to slide bar 520, make slide bar 520 can't move backward to ensure that front wheel 130 can stably forcefully support whole wheelchair body. Moreover, when the front wheel 130 is folded, the locking member can block the sliding rod 520, so as to prevent the sliding rod 520 from moving forward to cause the front wheel 130 to fall to the ground.

Specifically, as shown in fig. 4, 6, 7, 9 and 11, the locking member is a locking block 530. The locking piece 530 may be made of a metal material. The locking piece 530 is provided with a hinge shaft which is horizontal at left and right, and the hinge shaft is connected with the fixing bracket 540. The fixing bracket 540 is provided with a mounting hole 542, and the hinge shaft is mounted to the mounting hole 542. And, the hinge shaft is positioned below the stopper hole 550.

The long end of the locking piece 530 is provided with an arc-shaped end face, the arc-shaped end face is semicircular, and the axial direction of the arc-shaped end face is horizontal. The long end of the locking block 530 is engaged with the sliding rod 520, and the long end of the locking block 530 abuts against the fixing bracket 540. The short end of the locking piece 530 may abut against the fixing bracket 540.

When the front wheel 130 lands, the sliding rod 520 moves forward to a proper position, and then the arc-shaped end surface of the long end of the locking block 530 contacts with the circumferential surface of the sliding rod 520, and at this moment, the long end of the locking block 530 is located above the sliding rod 520, so that the sliding rod 520 is clamped with the locking block 530, and the front wheel 130 can be stably and powerfully supported, as shown in fig. 6.

Because the arc-shaped end face is arranged and the cross section of the sliding rod 520 is circular, the short end of the locking block 530 is acted upwards, so that the long end of the locking block 530 overcomes the friction between the locking block and the sliding rod 520 and swings downwards until the locking block is positioned below the sliding rod 520, the blocking effect of the locking block 530 on the sliding rod 520 is relieved, the sliding rod 520 can be conveniently moved to the rear side of the limiting hole 550, and the front wheel 130 can be folded. Moreover, since the long end of the locking block 530 is heavier than the short end thereof, the locking block 530 swings upward under the action of gravity until it abuts against the fixed bracket 540, and cannot swing continuously; the short end of the locking block 530 abuts against the fixed bracket 540 so that the short end of the locking block 530 blocks the sliding rod 520 to prevent the front wheel 130 from swinging downward in the rocking chair state to cause an obstructing effect, as shown in fig. 9.

Of course, a torsion spring may be disposed on the hinge shaft, and the long end of the locking block 530 may be driven to be always abutted against the fixing bracket 540 by the torsion spring. When the front wheel 130 in the folded state is restored to the normal use state, the user only needs to swing the support rod 560 forward to move the sliding rod 520 forward in the limiting hole 550, and the sliding rod 520 applies a pressing force to the long end of the lock block 530 to move the sliding rod 520 forward to the right position, and then the long end of the lock block 530 is reset to apply a blocking effect to the sliding rod 520.

As shown in fig. 11, in this embodiment, the fixing bracket 540 is provided with a groove 541 with a downward opening, the limiting holes 550 are respectively disposed on the left side and the right side of the groove 541, and the locking block 530 is disposed in the groove 541. The groove 541 is advantageous for enhancing the connection strength between the sliding rod 520 and the fixing bracket 540, and also enhances the connection strength between the locking block 530 and the fixing bracket 540, so that the locking block 530 can bear a large acting force from the sliding rod 520 for a long time, and the service life of the folding mechanism 500 is prolonged.

In some embodiments, as shown in fig. 10, the locking member is a locking screw 570. Locking screw 570 is vertical setting, locking screw 570 with fixed bolster 540 is connected, and is specific, and fixed bolster 540 is provided with the screw, screws into this screw from top to bottom locking screw 570, can make locking screw 570's bottom with the slide bar 520 joint. By screwing in or out the locking screw 570, the locking screw 570 can be clamped with the sliding rod 520 or the blocking effect of the locking screw 570 on the sliding rod 520 can be released.

By adopting the design, the locking screw 570 not only can play a powerful blocking role, but also can ensure stronger connection strength between the locking screw 570 and the fixed support, and can prevent the locking screw from being separated from the fixed support when the rocking chair or the wheelchair is used.

In some embodiments, the lockout member is a blocking lever. The stop rod is vertically arranged, a step hole is formed in the top of the fixed support 540, the stop rod is arranged in the step hole, and the bottom end of the stop rod is connected with the sliding rod 520 in a clamping mode.

Set up the step hole on fixed bolster 540 to use and block the pole and insert the step hole from top to bottom, can block the slide bar 520 after blocking the pole and move down to the target in place, when the card that needs to remove and block the pole to slide bar 520 keeps off the effect, only need to block the pole and up lift, very make things convenient for old man and disabled person to operate.

The multifunctional wheelchair provided by the utility model is a novel wheelchair product combining the rocking chair and the wheelchair, a user can automatically complete the conversion of the rocking chair and the wheelchair without the help of other people, the multifunctional wheelchair is convenient for the old people living alone to use, the burden of children for caring the old people is reduced to a great extent, the old people can be helped to realize self-care of life to a great extent, and the life happiness is improved. Moreover, the whole wheelchair is stable and solid in structure and convenient to operate, and a new experience can be brought to people.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.

Claims (10)

1. A multi-functional wheelchair, includes the wheelchair body, its characterized in that, the wheelchair body includes:

a seat frame (150);

a backrest frame (160) whose bottom end is hinged with the seat frame (150);

front wheels (130) provided below the seat frame (150), the front wheels (130) being located on left and right sides of the seat frame (150), respectively;

the first connecting rod (300) is respectively arranged at the left side and the right side of the backrest frame (160), and the top end of the first connecting rod (300) is hinged with the backrest frame (160);

the rear end of the arc rocker (200) is hinged with the bottom end of the first connecting rod (300);

the second connecting rod (400) is respectively arranged on the left side and the right side of the seat frame (150), the top end of the second connecting rod (400) is connected with the seat frame (150), and the bottom end of the second connecting rod (400) is hinged with the front end of the arc-shaped rocker (200);

the top end of the gas spring (600) is hinged with the backrest frame (160), and the bottom end of the gas spring (600) is hinged with the seat frame (150); the gas spring (600) comprises a control switch for controlling the operation of the gas spring (600);

a folding mechanism (500) respectively connected with the front wheel (130) and the seat frame (150) for driving the front wheel (130) to swing.

2. The multi-function wheelchair as claimed in claim 1, characterized in that the folding mechanism (500) comprises:

the fixing bracket (540) is horizontally arranged, the fixing bracket (540) is respectively arranged on the left side and the right side of the seat frame (150), and the fixing bracket (540) is connected with the seat frame (150); the fixing bracket (540) is provided with a limiting hole (550), and two ends of the limiting hole (550) are arranged in front and back;

a support rod (560) having a bottom end connected to the front wheel (130), and a top end of the support rod (560) being hinged to the fixing bracket (540);

the sliding rod (520) is axially and horizontally arranged left and right, and the sliding rod (520) is arranged in the limiting hole (550) and can move back and forth along the length direction of the limiting hole (550);

a connecting member (510) having one end hinged to the supporting rod (560) and the other end of the connecting member (510) connected to the sliding rod (520);

a locking member connected to the fixing bracket (540), the locking member being engaged with the sliding rod (520).

3. The multi-function wheelchair as claimed in claim 2, wherein the sliding bar (520) is circular in cross-sectional shape.

4. The multi-function wheelchair of claim 3 wherein said locking member is a lock block (530); the locking block (530) is provided with a hinge shaft which is horizontal left and right, the hinge shaft is connected with the fixed bracket (540), and the hinge shaft is positioned below the limiting hole (550); the long end of the locking block (530) is provided with an arc-shaped end face, the long end of the locking block (530) is clamped with the sliding rod (520), and the long end of the locking block (530) is abutted to the fixed support (540); the short end of the locking block (530) can abut against the fixed bracket (540).

5. The multifunctional wheelchair as claimed in claim 4, wherein the fixing bracket (540) is provided with a groove (541) having a downward opening, the limiting holes (550) are respectively provided at left and right sides of the groove (541), and the locking piece (530) is provided in the groove (541).

6. The multi-function wheelchair of claim 2 wherein said locking member is a blocking lever; the stop rod is vertically arranged, a step hole is formed in the top of the fixed support (540), the stop rod is arranged in the step hole, and the bottom end of the stop rod is connected with the sliding rod (520) in a clamping mode.

7. The multi-function wheelchair of claim 2 wherein said locking member is a locking screw (570); locking screw (570) are vertical setting, locking screw (570) with fixed bolster (540) are connected, the bottom of locking screw (570) with slide bar (520) joint.

8. The multifunctional wheelchair as claimed in any one of claims 2 to 7, wherein the connecting members (510) are respectively provided at left and right sides of the supporting bar (560), and the two connecting members (510) are respectively connected to both ends of the sliding bar (520).

9. The multifunctional wheelchair as claimed in claim 8, wherein the control switch is a push button, and the control switch is provided on the left or right side of the seat frame (150).

10. The multi-function wheelchair as claimed in claim 9, wherein the hinge joint of the gas spring (600) and the back frame (160) is provided at a front side of the hinge joint of the first link (300) and the back frame (160).

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