CN210728175U

CN210728175U - Multifunctional action auxiliary chair

Info

Publication number: CN210728175U
Application number: CN201921401311.3U
Authority: CN
Inventors: 王肖; 何辉波; 席佳伟; 王和强; 李华英; 张俊
Original assignee: Southwest University
Current assignee: Southwest University
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-06-12
Anticipated expiration: 2029-08-27

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 action auxiliary chair

Technical Field

The utility model relates to an old person's auxiliary instrument technical field, concretely relates to multi-functional action auxiliary chair.

Background

With reference to international labeling measures, china has formally stepped into aging society since 2000. Most of the elderly with higher ages 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 cost and manpower expenditure, which causes heavy burden for families. With the increase of age, the potential safety hazard of the old in daily life is increased gradually. The safety of the elderly living alone is threatened in many aspects, and the falling is an invisible killer for the life and health of the elderly and also a main threat source. A fall is very normal for ordinary people but very dangerous for elderly people. It is counted that more than 2/3 elderly suffer falls every year worldwide, and more than half of them suffer injuries to varying degrees.

With the improvement of living standard of people, the service industry of helping the old is rapidly developed. At present, a plurality of appliances suitable for the old people with walking difficulty to walk and recover are available in the market, such as double crutches, wheelchairs, walking aids with handrail supports and the like. The Chinese utility model patent CN201810538508.5 discloses a multifunctional safe walking aid device for the old, which has simple structure but insufficient stability, and the safety of the use can not be guaranteed for the old with inconvenient legs and feet; for example, the Chinese utility model patent CN201521060208.9 discloses a multifunctional orthopedic walking aid, but the walking aid is not provided with wheels, and the walking aid is required to be continuously lifted when being used, so that the old can feel more strenuous; for another example, chinese patent 201310034245.1 is an exoskeleton-type assisted walking robot, which is suitable for people with lower limb disabilities, but for most of the elderly, it is inconvenient to wear, complicated in structure, and not highly practical.

Therefore, in order to solve the above problems, a multifunctional action assisting chair is needed, which can realize flexible switching of multiple use states when the old people use, has strong stability and high comfort in various use forms, assists the old people in walking, standing, walking instead of walking, using in a toilet and other functions, is convenient to use, has no complicated wearing procedures, and has strong applicability.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to overcome the drawbacks of the prior art, and to provide a multifunctional walking assistance chair, which has a walking assistance function, a standing support function, a fall prevention function, a walking assistance function, and a toilet assistance function. The function is more comprehensive, and the operation is safer, the structure is more stable, use more laborsaving, more can satisfy the demand of old man to helping old man's device.

The utility model discloses a multifunctional action auxiliary chair, which comprises a chair frame body, a driving component for driving the chair frame body to move, an upper limb auxiliary component arranged at the armrest side of the chair frame body, lower limb auxiliary components arranged at the two left front supporting legs and the right front supporting legs of the chair frame body and a plurality of sitting and leaning components which are 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.

Furthermore, the cross section of the chair frame in the vertical direction is U-shaped.

Further, the driving wheel is driven by a driving motor, and the driving motor is a direct current speed reduction motor.

Furthermore, the handrail 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.

Further, 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.

Further, 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 left spout and the right spout that is parallel to each other, left side spout is fixed to be set up between left front leg and left back leg through fixed cover in the front 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 fixed cover in the front right side and the fixed cover in back right side, the left and right sides of double-deck cushion corresponds left slider and the right slider that is provided with sliding connection in left spout and right spout respectively.

Furthermore, the stepping motor is a direct current speed reduction motor and is arranged on the lower cross beam, and the output end of the stepping motor is connected with the adjusting screw rod.

Further, 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.

Furthermore, 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.

Further, left slider sets up in double-deck cushion left side front end, right slider sets up in double-deck cushion right side front end.

The utility model has the advantages that: 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. The function is more comprehensive, the operation is safer, the structure is more stable, it is more laborsaving to use, more can satisfy the demand of old man to helping old man's device, the double-deck cushion design that turns over, the upper strata can turn over a book, it is supplementary like the lavatory, the handrail adopts second grade ladder structure, first step plane is fixed with the multi-functional arm of U-shaped holds in the palm, let the old man need not to bow to remove to hold the handle, protection old man's lumbar vertebrae, the device has two kinds of forms of sitting posture and standing formula, and can automatic switch, avoid the old man to bow actions such as folding, utilize direct current gear motor drive to help the capable ware, the old man promotes the walking, it is more stable.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic view of a standing-type three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the sitting posture of the present invention;

FIG. 3 is a rear view of the sitting posture three-dimensional structure of the present invention;

fig. 4 is a schematic view of the stepped handrail of the present invention;

FIG. 5 is a schematic view of the U-shaped arm of the present invention;

fig. 6 is a schematic view of the structure of the double-layered cushion of the present invention;

fig. 7 is a schematic view of the lifting mechanism of the present invention;

fig. 8 is a schematic view of the pedal structure of the present invention.

Detailed Description

Fig. 1 is a schematic structural view of the present invention, and as shown in the drawing, the multifunctional mobility assistance chair in this embodiment includes a chair frame body, a driving assembly for driving the chair frame body to move, an upper limb assistance assembly installed at an armrest side of the chair frame body, a lower limb assistance assembly installed at two front leg sides of the chair frame body, and a seat assembly installed on the chair frame body and having a plurality of switchable working states;

the chair frame body comprises a left front leg 11, a left rear leg 12, a right front leg 21 and a right rear leg 22 which are vertically arranged, the left front leg 11 and the left rear leg 12 are fixedly connected through a left longitudinal beam 13, the right front leg 21 and the right rear leg 22 are fixedly connected through a right longitudinal beam 23, and the left rear leg 12 and the right rear leg 22 are fixedly connected through an upper cross beam 121 and a lower cross beam 122 which are horizontally arranged;

the driving assembly comprises a driving wheel 31 arranged at the bottom of the left rear leg 12 and the right rear leg 22 and a universal wheel 32 arranged at the bottom of the left front leg 11 and the right front leg 21;

the upper limb auxiliary assembly comprises an armrest frame 4 arranged on the armrest side of the chair frame body and an arm support 43 arranged on the armrest frame 4, the armrest frame 4 comprises a support section 41 in the horizontal direction and a holding section 42 inclined upwards, the support section 41 is provided with the arm support 43 in parallel, the arm support 43 is a semicircular groove, the bottom of the arm support 43 forms a buckle 44 on the buckle 44 of the support section 41, and the holding section 42 is provided with a holding sleeve 45 convenient to hold;

the lower limb auxiliary assembly comprises a pedal support rod 5 which is rotatably arranged on the left front leg 11 and the right front leg 21 and conforms to the shank, a pedal 51 arranged at the bottom of the pedal support rod 5 and a baffle plate 52 arranged in the middle of the pedal support rod 5 and used for blocking the shank;

the sitting and leaning assembly comprises a backrest 6 arranged on the upper cross beam 121, an adjusting screw 61 arranged on the backrest 6, an adjusting nut 7 in threaded connection with the adjusting screw 61, a double-layer cushion 8 hinged with the adjusting nut 7 and a sliding groove for limiting the sliding track of the double-layer cushion 8.

In this embodiment, the cross section of the chair frame in the vertical direction is U-shaped.

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

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

In this embodiment, the pedal 51 is foldable at the bottom of the pedal rod 5, and the baffle 52 is rotatably disposed at the middle of the pedal rod 5 around the pedal rod 5.

In this embodiment, the adjusting screw 61 is driven by the stepping motor 62 to rotate and adjust to convert the rotation motion of the adjusting screw 61 into the lifting motion of the adjusting nut 7, the end surface of the adjusting nut 7 is horizontal, the sliding groove comprises a left sliding groove 71 and a right sliding groove 72 which are parallel to each other, the left sliding groove 71 is fixedly arranged between the left front leg 11 and the left rear leg 12 through a front left fixing sleeve and a rear left fixing sleeve, the right sliding groove 72 is fixedly arranged between the right front leg 21 and the rear leg 22 through a front right fixing sleeve and a rear right fixing sleeve, and the left side and the right side of the double-layer cushion 8 are correspondingly provided with a left sliding block 711 and a right sliding block 721 which are slidably connected into the left sliding groove 71 and the.

In this embodiment, the stepping motor 62 is a dc speed reduction motor and is mounted on the lower beam 122, and the output end thereof is connected to the adjusting screw 61.

In this embodiment, the double-layered seat cushion 8 includes a sitting toilet cushion 81 located at the bottom layer and a hard foam rubber cushion 82 located at the upper layer, and the sitting toilet cushion 81 is hinged to the hard foam rubber cushion 82 through a hinge.

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

In this embodiment, the left slider 87111 is disposed at the front end of the left side of the double-layered cushion 8, and the right slider 721 is disposed at the front end of the right side of the double-layered cushion 8.

The whole chair frame is U-shaped, symmetrical left and right, has a three-side surrounding structure, and has a standing form and a sitting form. The front supporting legs of the device are bilaterally symmetrical, the lower ends of the front supporting legs are provided with universal driven wheels (the diameter is about 200mm) which are connected through wheel supports, the top ends of the front supporting legs are connected with bent pipes and flange plates with the diameter of about 50mm, and the pedal supporting rods 5 are hinged with the flange plates to form the lower limb auxiliary assembly with the adjustable angle. The front supporting legs form a stable bilateral symmetry structure. The lower end of the rear support leg is connected with a driving motor 33 and a driving wheel 31 as a driving device of the whole device. The chair frame is connected through the mode, the left structure and the right structure are more stable, and meanwhile, a vacant position in the middle of the chair frame can be used as a walking aid standing space for the old.

The standing form and the sitting form of the vehicle body have different structures and functions. In the standing mode, the device has the functions of assisting walking and assisting exercise; in the sitting mode, the device has the functions of riding instead of walking, sitting tools, assisting in using the toilet and the like; meanwhile, the chair frame can be automatically switched among different forms, the old people do not need to move greatly, and part of potential safety hazards can be eliminated.

In the standing state of the vehicle body, the double-layer cushion 8 is folded, and meanwhile, the old people rotate the flange plate to fold the lower limb auxiliary assembly; the chair frame is provided with a space in the center, the old can stand in the space, the holding sleeve 45 is held by the palm, the small arm leans against the groove of the U-shaped arm support 4, and the supporting force of the vehicle body to the people is dispersed on the small arm. In the walking process, the old can turn on the driving motor 33, the motor drives the driving wheel 31 to rotate, the rotating speed of the motor is low, the accidental accelerated motion of the old can be inhibited, and the walking assisting power can be provided for the old; meanwhile, the supporting force is dispersed on the arms, so that the old can keep upright without stooping in the walking process, the lumbar of the old can be protected, and the fatigue feeling is reduced.

The vehicle body is in a sitting type state, the double-layer cushion 8 is horizontally placed, and the lower limb auxiliary assembly is selectively opened. The chair frame has the function of a seat; meanwhile, the driving motor 33 can drive the device to operate, so that the vehicle body can be used as a short-distance travel tool.

The upper layer of the double-layer cushion 8 is a hard sponge cushion 82, and the lower layer is a solid wood pedestal pan cushion 81 with a hollow center; the upper and lower double layers are connected by hinges, as shown in fig. 6. The toilet seat cushion 81 is a main body part of the double-layer cushion 8, a through hole is formed in the center of the toilet seat cushion 81 and used for a user to use in a toilet, the depth of the through hole is the same as the thickness of the hard sponge cushion 82, and when the hard sponge cushion 82 is put down, the surface of the double-layer cushion is attractive and flat; the central part of the sitting W.C. pad 81 is provided with a larger oval hole for assisting sitting W.C.; the left and right sides of the front end of the sitting W.C. pad 81 are respectively provided with a left slide block 711 and a right slide block 721, the left slide block 711 and the right slide block 721 are embedded in the left slide groove 71 and the right slide groove 72 on the two sides of the chair frame, and the front end of the sitting W.C. pad 81 can slide back and forth under the limitation of the left slide groove 71 and the right slide groove 72; when the adjusting screw 61 rotates and adjusts, the adjusting nut 7 in threaded connection with the adjusting screw 61 goes up and down to drive the rear end of the pedestal pan cushion 81 to go up and down together, under the action of the pulling force at the rear end, the front end of the pedestal pan cushion 81 moves backwards, and because the hard sponge cushion 82 is connected with the pedestal pan cushion 81 through the hinge, when the pedestal pan cushion 81 moves, the hard sponge cushion 82 also moves together with the pedestal pan cushion, and the whole double-layer cushion 8 can be turned over by 90 degrees under the action of the adjusting screw 61.

The stepping motor 62 is arranged on the lower beam 122 of the chair frame; is connected with the adjusting screw 61 through a coupler; the adjusting screw 61 is arranged at the hollow part in the center of the back cushion 6; the back cushion 6 is internally provided with a hard framework, so that the back cushion is convenient to mount, fix and lean; and a horizontal bearing is arranged at the upper end of the hollowed-out part, and the upper end of the adjusting screw rod 61 is fastened on the horizontal bearing. The adjusting nut 7 is hinged with the rear end of the pedestal pan cushion 81, and the step distances of the adjusting screw rods 61 are equal; under the drive of the stepping motor 62, the adjusting screw 61 can rotate towards the designated direction, the adjusting nut 7 is driven to be gradually pushed upwards in the ascending and rotating process of the adjusting screw 61, the adjusting nut 7 ascends and drives the rear end of the toilet seat cushion 81 to ascend, and the front end of the toilet seat cushion 81 to move backwards, so that the folding function is realized.

The whole armrest frame 4 is in a two-stage ladder shape, 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 included angle of about 30 degrees with the vertical direction to form a holding section 42. The end surfaces of the armrest frame 4 are fastened at the left side and the right side of the chair frame. On the upper surface of the holder section 41 there is a U-shaped arm rest 43 connected by a catch 44. The arm support 43 is U-shaped, the inner side is higher than the outer side, and a circular tube 46 is welded on the inner side. In order to make it more convenient for the elderly to grasp the tube 46 for support, brackets are provided on the outside and underside of the U-shaped groove. In the standing mode, the old people push the chair frame to walk, the holding sleeve 45 is held by two hands, the small arm is placed in the U-shaped groove, the U-shaped groove can increase the contact area between the old people and the device, so that most supporting force provided by the device is dispersed on the small arm, and the pressure of the palm is reduced. Because the palm holding power of the old is limited, the design can effectively prevent the old from falling down because the palm cannot bear the supporting power. The stepped handrail and the U-shaped arm tractor can increase the contact area between the handrail and the old people, and improve the comfort and the safety of the old people. The arm rest 43 has two functions, both to pull up the forearm in the standing position and to act as a handrail in the sitting position or in the standing position.

The lower limb auxiliary assembly is positioned in front of the device and mainly comprises a pedal 51, a baffle plate 52, a pedal support rod 5, a flange plate and a bent joint. As shown in fig. 8, in the sitting position, the lower limb assist assembly can be opened according to the will of the elderly, the pedal 51 is folded downward, the baffle 52 is folded forward, and the pedal rod 5 rotates forward by about 30 degrees. The pedal support rod 5 is connected with the elbow joint through a flange plate; the lower limb auxiliary assembly is fixed to the seat frame by means of an elbow joint which is vertically inserted into the left front leg 11 and the right front leg 12 of the seat frame and fixed by means of bolts, as shown in fig. 2.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

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;

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.