CN210728175U - Multifunctional mobility chair - Google Patents

Abstract

The utility model discloses a multi-functional action auxiliary chair, including the drive assembly that chair frame body, drive chair frame body removed, install in the upper limbs auxiliary assembly of chair frame body handrail side, install in the low limbs auxiliary assembly of two left front legs of chair frame body and right front legs side and install the seat that has multiple changeable operating condition on the chair frame body and lean on the subassembly. The utility model discloses a multi-functional action auxiliary chair helps capable function, the support function of standing, prevents the function of tumbleing, the function of riding instead of walk, supplementary function like the lavatory.

Description

Multifunctional mobility chair

technical field

The utility model relates to the technical field of auxiliary equipment for the elderly, in particular to a multifunctional action auxiliary chair.

Background technique

According to international standards, China has officially entered an aging society since 2000. Most of the older elderly often need special care and care, which on the one hand greatly reduces the quality of life of the elderly in terms of freedom, and on the other hand requires high costs and labor expenditures, bringing a heavy burden to the family. . With the increase of age, the safety risks of the elderly in daily life also gradually increase. The safety of the elderly living alone is threatened in many ways, and falls are the invisible killer of the life and health of the elderly and the main source of threats. Falls are very normal for ordinary people, but very dangerous for the elderly. According to statistics, more than 2/3 of the elderly in the world suffer from falls every year, and more than half of them are injured to varying degrees.

With the improvement of people's living standards, the elderly service industry has also developed rapidly. At present, there are many devices on the market that are suitable for walking and rehabilitation of elderly people with walking difficulties, such as crutches, wheelchairs, and walkers with armrests. Chinese utility model patent CN201810538508.5 discloses a multifunctional safety walking device for the elderly. The device has a simple structure but lacks stability. For the elderly with inconvenient legs and feet, the safety of use cannot be guaranteed; for example, China The utility model patent CN201521060208.9 discloses a multifunctional orthopedic walker, but this walker does not have wheels, and the use of this walker requires constant lifting of the walker, which makes the elderly feel more labored; For example, Chinese patent 201310034245.1 is an exoskeleton-assisted walking robot, which is suitable for people with lower limb disabilities, but for most elderly people, it is inconvenient to wear, has a complex structure, and is not very practical.

Therefore, in order to solve the above problems, there is a need for a multi-functional mobility assist chair, which can realize flexible switching of various use states when the elderly use it, has strong stability and high comfort in various use forms, and assist the elderly users to walk, stand, and walk. , toilet and other functions, and easy to use, no complicated wearing procedures, strong applicability.

Utility model content

In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a multifunctional mobility assist chair, which has functions of assisting walking, standing support, preventing falls, walking and assisting toileting. The functions are more comprehensive, the operation is safer, the structure is more stable, and the use is less labor-intensive, and can better meet the needs of the elderly for the elderly assistance device.

The multifunctional action assisting chair of the present invention comprises a chair frame body, a driving component for driving the chair frame body to move, an upper limb auxiliary component installed on the armrest side of the chair frame body, and two left front legs and right front leg sides installed on the chair frame body. The lower limb auxiliary component and the seat-rest component installed on the chair frame body with various switchable working states;

The chair frame body includes vertically arranged left front outriggers, left rear outriggers, right front outriggers and right rear outriggers, the left front outrigger and the left rear outrigger are fixedly connected by a left longitudinal beam, and the right front outrigger and the right The rear outriggers are fixedly connected by the right longitudinal beam, and the left rear outrigger and the right rear outrigger are fixedly connected by a horizontally arranged upper beam and a lower beam;

The drive assembly comprises a drive wheel mounted on the bottom of the left rear outrigger and the right rear outrigger and a universal wheel mounted on the bottom of the left front outrigger and the right front outrigger;

The upper limb auxiliary component includes an armrest frame installed on the armrest side of the chair frame body and an arm rest installed on the armrest frame. The armrest frame includes a horizontal support section and an inclined upward holding section. The support section The arm support is arranged in parallel on the upper part, and the arm support is a semicircular groove, the bottom of which forms a buckle that is fastened to the support section, and the holding section is provided with a holding sleeve for easy holding;

The lower limb auxiliary assembly includes a pedal rod that is rotatably mounted on the left front leg and the right front leg and is adapted to the calf, a pedal mounted on the bottom of the pedal rod, and a baffle mounted on the middle of the pedal rod for blocking the calf. ;

The seating assembly includes a backrest mounted on the upper beam, an adjusting screw mounted on the backrest, an adjusting nut threaded on the adjusting screw, a double-layer seat cushion hinged with the adjusting nut, and a chute for limiting the sliding track of the double-layer seat cushion. .

Further, the vertical cross-section of the chair frame is in the shape of "凵".

Further, the drive wheel is driven by a drive motor, and the drive motor is a DC deceleration motor.

Further, the armrest frame is symmetrically installed on both sides of the chair frame in a detachable manner, and a round tube is provided on the arm support near the center side of the chair frame.

Further, the pedal is foldably arranged at the bottom of the pedal support rod, and the baffle plate is arranged in the middle of the pedal support rod in a manner of being rotatable around the pedal support rod.

Further, the adjustment screw is driven by a stepping motor to rotate and adjust to convert the rotational movement of the adjustment screw into the lifting movement of the adjustment nut, the end face of the adjustment nut is horizontal, and the chute includes a left chute and a right chute that are parallel to each other, The left chute is fixedly arranged between the left front leg and the left rear outrigger through the front left fixing sleeve and the rear left fixing sleeve, and the right chute is fixedly arranged on the right front leg through the front right fixing sleeve and the rear right fixing sleeve. and between the right rear leg, the left and right sides of the double-layer seat cushion are respectively provided with a left slider and a right slider that are slidably connected to the left chute and the right chute.

Further, the stepping motor is a DC deceleration motor mounted on the lower beam, and the output end thereof is connected with the adjusting screw.

Further, the double-layered seat pad includes a toilet pad on the bottom layer and a hard sponge pad on the upper layer, and the toilet pad and the hard sponge pad are hinged through hinges.

Further, the toilet pad is provided with a through hole for the user to go to the toilet, and the through hole can be oval or circular.

Further, the left slider is arranged on the left front end of the double-layer seat cushion, and the right slider is arranged at the right front end of the double-layer seat cushion.

The beneficial effects of the utility model are as follows: the multifunctional action auxiliary chair disclosed by the utility model has the functions of assisting walking, supporting functions for standing, preventing falls, functions for walking, and functions for assisting going to the toilet. More comprehensive functions, safer operation, more stable structure, more labor-saving use, and can better meet the needs of the elderly for the elderly assistance device. The double-layer folding seat cushion design, the upper layer can be folded, and the toilet is assisted. The handrail adopts a two-level ladder structure. The first step plane is fixed with a U-shaped multi-functional arm support, so that the elderly do not need to bend over to hold the handle and protect the lumbar spine of the elderly. The device has two forms of sitting and standing, and can be automatically switched to avoid bending and folding of the elderly. Action, using DC geared motor to drive the walker, the elderly push to walk, more stable, avoid lifting, and more labor-saving.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further described:

Fig. 1 is the three-dimensional structure schematic diagram of the standing form of the present utility model;

Fig. 2 is the sitting type three-dimensional structure schematic diagram of the present utility model;

Fig. 3 is the rear view of the sitting type three-dimensional structure of the present utility model;

4 is a schematic diagram of a stepped handrail of the present invention;

Fig. 5 is the U-shaped arm drag schematic diagram of the present utility model;

6 is a schematic structural diagram of a double-layer seat cushion of the present invention;

7 is a schematic diagram of the lifting mechanism of the present invention;

FIG. 8 is a schematic diagram of the pedal structure of the present invention.

Detailed ways

1 is a schematic structural diagram of the present invention. As shown in the figure, the multifunctional mobility assist chair in this embodiment includes a seat frame body, a driving component for driving the seat frame body to move, and an upper limb auxiliary component installed on the armrest side of the chair frame body. , the lower limb auxiliary components installed on the two front legs of the chair frame body, and the seat-rest component installed on the chair frame body with various switchable working states;

The seat frame body includes a left front outrigger 11 , a left rear outrigger 12 , a right front outrigger 21 and a right rear outrigger 22 , and the left front outrigger 11 and the left rear outrigger 12 are fixed by a left longitudinal beam 13 . Connection, the right front outrigger 21 and the right rear outrigger 22 are fixedly connected by the right longitudinal beam 23, and the left rear outrigger 12 and the right rear outrigger 22 are fixedly connected by the horizontally arranged upper beam 121 and lower beam 122;

The drive assembly includes a drive wheel 31 mounted on the bottom of the left rear outrigger 12 and the right rear outrigger 22 and a universal wheel 32 mounted on the bottom of the left front outrigger 11 and the right front outrigger 21;

The upper limb auxiliary component includes an armrest frame 4 installed on the armrest side of the chair frame body and an arm rest 43 installed on the armrest frame 4. The armrest frame 4 includes a horizontal support section 41 and an upwardly inclined grip section 42. , the support section 41 is provided with an arm support 43 in parallel, the arm support 43 is a semi-circular groove whose bottom is formed with a buckle 44 on the support section 41, and the holding section 42 is provided with a convenient Grip sleeve 45 to hold;

The lower limb auxiliary component includes a pedal rod 5 that is rotatably mounted on the left front leg 11 and the right front leg 21 and is adapted to the lower leg, a pedal 51 installed on the bottom of the pedal rod 5, and a pedal rod 5 installed in the middle of the rod for use. baffle plate 52 against the calf;

The seating assembly includes a backrest 6 mounted on the upper beam 121, an adjusting screw 61 mounted on the backrest 6, an adjusting nut 7 threaded on the adjusting screw 61, a double-layered seat cushion 8 hinged with the adjusting nut 7, and a limiter. The chute for the sliding track of the double seat cushion 8.

In this embodiment, the vertical cross-section of the chair frame is in the shape of "凵".

In this embodiment, the driving wheel 31 is driven by a driving motor 33, and the driving motor 33 is a DC deceleration motor.

In this embodiment, the armrest frame 4 is symmetrically installed on both sides of the chair frame in a detachable manner, and a circular tube 46 is provided on the arm support 43 near the center side of the chair frame.

In this embodiment, the pedal 51 is foldably disposed at the bottom of the pedal support rod 5 , and the baffle 52 is disposed in the middle of the pedal support rod 5 in a manner of being rotatable around the pedal support rod 5 .

In this embodiment, the adjusting screw 61 is driven by a stepping motor 62 to rotate and adjust to convert the rotational motion of the adjusting screw 61 into the lifting motion of the adjusting nut 7. The end face of the adjusting nut 7 is horizontal, and the sliding groove includes parallel The left chute 71 and the right chute 72 are fixedly arranged between the left front leg 11 and the left rear leg 12 through the front left fixing sleeve and the rear left fixing sleeve, and the right chute 72 passes through the front left fixing sleeve and the rear left fixing sleeve. The right fixing sleeve and the rear right fixing sleeve are fixedly arranged between the right front outrigger 21 and the rear outrigger 22, and the left and right sides of the double-layer seat cushion 8 are respectively provided with sliding connections in the left chute 71 and the right chute 72. left slider 711 and right slider 721.

In this embodiment, the stepping motor 62 is a DC deceleration motor mounted on the lower beam 122 , and its output end is connected to the adjusting screw 61 .

In this embodiment, the double-layer seat cushion 8 includes a toilet seat pad 81 on the bottom layer and a hard sponge pad 82 on the upper layer, and the toilet seat pad 81 and the hard sponge pad 82 are hinged through hinges.

In this embodiment, the toilet pad 81 is provided with a through hole 83 for the user to use the toilet, and the through hole 83 may be oval or circular.

In this embodiment, the left slider 87111 is arranged at the left front end of the double-layer seat cushion 8 , and the right slider 721 is arranged at the right front end of the double-layer seat cushion 8 .

The overall shape of the chair frame is in the shape of "凵", symmetrical to the left and right, with a three-sided wrap-around structure, with a standing form and a sitting form. The front legs of the device are symmetrical on the left and right, and the lower end is equipped with a universal driven wheel (about 200mm in diameter) connected by the wheel bracket. The top of the front leg is connected with an elbow and a flange with a diameter of about 50mm. The flanges are hinged to form an angle-adjustable lower limb auxiliary component. The front legs form a stable left-right symmetrical structure. The lower end of the rear leg is connected with the drive motor 33 and the drive wheel 31 as the drive device of the whole device. The chair frame is connected in the above-mentioned way, the left and right structures are more stable, and at the same time, there is also a free standing space for the elderly to use in the middle of the chair frame.

The standing form and the sitting form of the vehicle body have different structures and functions. In the standing form, the device has the functions of assisting walking and exercise assistance; in the sitting form, the device has the functions of walking, sitting, and assisting toilets; at the same time, the different forms of the chair frame can be automatically switched, without the need for the elderly to carry out large scales. Amplitude movement can eliminate some safety hazards.

In the standing state of the car body, the double-layer seat cushion 8 is retracted, and at the same time, the elderly rotates the flange to retract the auxiliary components of the lower limbs; the center of the seat frame frees up space, and the elderly can stand in this space and pinch the palm of the hand to hold it. With the sleeve 45, the forearm rests on the groove of the U-shaped arm support 4, and the supporting force of the vehicle body to the person is distributed on the forearm. In the process of walking, the elderly can turn on the driving motor 33, and the motor drives the driving wheel 31 to rotate, and the motor rotates at a slow speed, which can restrain the elderly from accelerating unexpectedly and help the elderly to walk. On the other hand, the elderly can keep upright during walking without bending, so the lumbar spine of the elderly can be protected and fatigue can be reduced.

The vehicle body is in a sitting state, the double-layer seat cushion 8 is laid flat, and the auxiliary components of the lower limbs are selectively opened. The seat frame itself has a seat function; at the same time, the drive motor 33 can drive the device to run, so the vehicle body can be used as a short-distance means of transportation.

In the double-layer seat cushion 8, the upper layer is a hard sponge seat cushion 82, and the lower layer is a solid wood toilet seat cushion 81 with a hollow center; the upper and lower layers are connected by hinges, as shown in FIG. 6 . The toilet seat pad 81 is the main body part of the double-layer seat pad 8. A through hole is opened in the center of the toilet seat pad 81 for the user to use the toilet. The depth is the same as the thickness of the hard sponge pad 82. The surface of the double-layer seat cushion is beautiful and flat; the center part of the toilet seat cushion 81 has a large oval hole, which is used to assist the toilet; The slider 721 , the left slider 711 and the right slider 721 are embedded in the left chute 71 and the right chute 72 on both sides of the seat frame. It can be slid back and forth; when the adjusting screw 61 is rotated and adjusted, the adjusting nut 7 threadedly connected with the adjusting screw 61 lifts and drives the rear end of the toilet pad 81 to rise and fall together. The hard sponge pad 82 is connected to the toilet pad 81 through hinges. When the toilet pad 81 moves, the hard sponge pad 82 will also move along with it. Under the action of the adjusting screw 61, the whole double-layer seat pad 8 will be folded about 90 degrees. Spend.

The stepping motor 62 is installed on the lower beam 122 of the chair frame; it is connected with the adjusting screw 61 through a coupling; the adjusting screw 61 is installed in the hollow in the center of the back cushion 6; the back cushion 6 has a hard frame inside, It is easy to install, fix and rely on; a horizontal bearing is installed on the upper end of the hollow part, and the upper end of the adjusting screw 61 is fastened on the horizontal bearing. The adjusting nut 7 is hinged to the rear end of the toilet seat pad 81, and the adjusting screw 61 has equal steps; under the driving of the stepping motor 62, the adjusting screw 61 can rotate in a specified direction, and the adjusting screw 61 is adjusted during the upward rotation process. The nut 7 is driven to be pushed up gradually, the adjusting nut 7 rises and drives the rear end of the toilet pad 81 to rise and the front end to move backward, so as to realize the folding function.

The handrail frame 4 is in the shape of a two-stage ladder as a whole. The plane of the first-stage ladder is parallel to the ground to form a support section 41 , and the grip of the second-stage ladder forms an angle of about 30 degrees with the vertical direction to form a holding section 42 . . The end faces of the armrest frame 4 are fastened to the left and right sides of the chair frame. On the upper surface of the support section 41 is a U-shaped arm support 43 connected by a buckle 44 . The arm support 43 is U-shaped, the inner side is higher than the outer side, and a round tube 46 is welded on the inner side. In order to make it more convenient for the elderly to hold the round tube 46 for support, support plates are provided on the outer side and the lower side of the U-shaped groove. In the standing position, the old man pushes the chair frame to walk, holds the grip cover 45 with both hands, and places the forearm in the U-shaped groove. The U-shaped groove can increase the contact area between the old man and the device, so that most of the support provided by the device is provided. The force is distributed on the forearm, reducing the pressure on the palm. Due to the limited grasping power of the palm of the elderly, this design can effectively prevent the elderly from falling because the palm cannot bear the support force. The stepped armrest and U-shaped arm drag can increase the contact area with the elderly and improve the comfort and safety of the elderly. The arm rest 43 has two functions, which can not only lift the forearm in the standing position, but also act as an armrest in the sitting position or standing still.

The lower limb auxiliary component is located in front of the device, and the lower limb auxiliary component mainly includes a pedal 51 , a baffle 52 , a pedal support rod 5 , a flange plate, and an elbow joint. As shown in FIG. 8 , in the sitting position, the lower limb auxiliary assembly can be opened according to the wishes of the elderly, the pedal 51 is folded down, the baffle 52 is folded forward, and the pedal support rod 5 is rotated forward about 30 degrees. The pedal support rod 5 is connected with the elbow joint through the flange plate; the lower limb auxiliary component is fixed between the elbow joint and the chair frame, as shown in Figure 2, the elbow joint is vertically inserted into the left front leg 11 and the right front leg 12 of the chair frame and Fastened by bolts.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (10)

1. A multifunctional action-assisting chair is characterized in that: the multifunctional chair comprises a chair frame body, a driving assembly for driving the chair frame body to move, an upper limb auxiliary assembly arranged on the armrest side of the chair frame body, a lower limb auxiliary assembly arranged on the two left front supporting legs and the right front supporting legs of the chair frame body, and a sitting and leaning assembly which is arranged on the chair frame body and can switch working states;

the chair frame body comprises a left front leg, a left rear leg, a right front leg and a right rear leg which are vertically arranged, the left front leg and the left rear leg are fixedly connected through a left longitudinal beam, the right front leg and the right rear leg are fixedly connected through a right longitudinal beam, and the left rear leg and the right rear leg are fixedly connected through an upper cross beam and a lower cross beam which are horizontally arranged;

the driving assembly comprises driving wheels arranged at the bottoms of the left rear supporting leg and the right rear supporting leg and universal wheels arranged at the bottoms of the left front supporting leg and the right front supporting leg;

the upper limb auxiliary assembly comprises an armrest frame arranged on the armrest side of the chair frame body and an arm support arranged on the armrest frame, the armrest frame comprises a support section in the horizontal direction and a holding section which inclines upwards, the support section is provided with the arm support in parallel, the arm support is a semicircular groove, the bottom of the arm support forms a buckle buckled on the support section, and the holding section is provided with a holding sleeve convenient to hold;

the lower limb auxiliary assembly comprises a pedal support rod which is rotatably arranged on the left front leg and the right front leg and conforms to the shank, a pedal arranged at the bottom of the pedal support rod and a baffle plate arranged in the middle of the pedal support rod and used for blocking the shank;

the sitting and leaning assembly comprises a backrest installed on the upper cross beam, an adjusting screw rod installed on the backrest, an adjusting nut in threaded connection with the adjusting screw rod, a double-layer cushion hinged with the adjusting nut and a sliding groove for limiting the sliding track of the double-layer cushion.

2. The multifunctional mobility assistance chair of claim 1, wherein: the cross section of the chair frame in the vertical direction is U-shaped.

3. The multifunctional mobility assistance chair of claim 1, wherein: the driving wheel is driven by a driving motor, and the driving motor is a direct current speed reducing motor.

4. The multifunctional mobility assistance chair of claim 1, wherein: the armrest frame is symmetrically arranged on two sides of the chair frame in a detachable mode, and the arm support is provided with a circular tube close to the center side of the chair frame.

5. The multifunctional mobility assistance chair of claim 1, wherein: the pedal is arranged at the bottom of the pedal supporting rod in a foldable mode, and the baffle is arranged in the middle of the pedal supporting rod in a mode of rotating around the pedal supporting rod.

6. The multifunctional mobility assistance chair of claim 1, wherein: adjusting screw is turned into adjusting nut's elevating movement by step motor drive rotation regulation with adjusting screw's rotary motion, adjusting nut terminal surface level, the spout is including the left spout and the right spout that are parallel to each other, left side spout is fixed to be set up between left front leg and left back leg through the fixed cover in preceding left side and the fixed cover in back left, right spout is fixed to be set up between right front leg and right back leg through the fixed cover in preceding right side and the fixed cover in back right side, the double-deck cushion left and right sides corresponds left slider and the right slider that is provided with sliding connection in left spout and right spout respectively.

7. The multifunctional mobility assistance chair of claim 6, wherein: the stepping motor is a direct current speed reducing motor and is arranged on the lower cross beam, and the output end of the stepping motor is connected with the adjusting screw rod.

8. The multi-functional activity-assisting chair of claim 7, wherein: the double-layer cushion comprises a pedestal pan cushion positioned at the bottom layer and a hard sponge cushion positioned at the upper layer, and the pedestal pan cushion is hinged with the hard sponge cushion through a hinge.

9. The multi-functional activity-assisting chair of claim 8, wherein: the toilet seat cushion is provided with a through hole for a user to go to the toilet, and the through hole can be oval or circular.

10. The multi-functional activity-assisting chair of claim 9, wherein: the left slider is arranged at the front end of the left side of the double-layer cushion, and the right slider is arranged at the front end of the right side of the double-layer cushion.

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