CN217548405U - Wheelchair with novel structure - Google Patents

Abstract

The utility model provides a novel wheelchair of structure, including the seat body that has back and bedplate, and be used for supporting the pedestal of seat body, the below of bedplate have with the bedplate is the regulating part that the contained angle set up, regulating part with the bedplate is articulated each other at the rear side, just the regulating part with still be equipped with an angle regulator who is used for adjusting and fixes the two angle between the bedplate, the seat body passes through the regulating part installation is fixed in on the pedestal. The adjusting part is fixed on the seat body, and the seat body can rotate relative to the adjusting part only by adjusting the angle adjuster, so that multi-angle adjustment of the wheelchair can be realized, particularly, the zero gravity function can be realized, and the riding comfort is improved; and the seat body is only fixed with the seat body through the adjusting part, and compared with the prior art, the wheelchair has no complex connecting rod hinging and locking structure, so that the overall structure of the wheelchair is simplified, and the operation is simpler and more convenient.

Description

Wheelchair with novel structure

Technical Field

The utility model relates to the technical field of wheelchair vehicles.

Background

Disabled personage such as cerebral palsy children, because the health support ability is relatively poor, very uncomfortable when using ordinary wheelchair, in order to improve the travelling comfort that this kind of personnel took, appeared and had specially aimed at disabled personage's wheelchair, its back and pedal support nature to the health relatively better, have great promotion in the travelling comfort. However, there are still some disadvantages to the existing wheelchairs of this type: 1. the wheelchair angle adjusting function is only simple backrest adjustment, and for people who cannot move and need to take the wheelchair for a long time, the buttocks bear the maximum pressure of the human body, so that the body is stiff and fatigued, even bedsores occur and the health is damaged due to single-posture sitting for a long time; 2. the existing foldable wheelchair has a complex structure, usually the seat body is hinged with the seat body through a plurality of connecting rods, when the angle is adjusted, the folding or the unfolding is realized through linkage of the plurality of connecting rods, and locking structures are required to be arranged at the plurality of hinged positions, so that the volume is still large after the folding, the storage and the carrying are inconvenient, the folding structure is complex, and the operation is laborious; 3. due to the lack of mobility, the structure of the handrail and the like is high when the user needs to take the bicycle, so that the user is difficult to get on the bicycle and inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wheelchair of novel structure that travelling comfort is high, easily accomodate.

In order to achieve the above object, the utility model adopts the following technical scheme:

a wheelchair with a novel structure comprises a seat body with a backrest and a seat board, and a seat body used for supporting the seat body, wherein an adjusting part which forms an included angle with the seat board is arranged below the seat board, the adjusting part and the seat board are hinged with each other at the rear side, an angle adjuster used for adjusting and fixing the angle of the adjusting part and the seat board is also arranged between the adjusting part and the seat board, and the seat body is installed and fixed on the seat body through the adjusting part; the angle adjuster comprises a sleeve, a sliding rod, a damping layer and a locking mechanism, wherein the sliding rod is in sliding fit in the sleeve and is longer than the sleeve, the damping layer is clamped between the sliding rod and the sleeve, and the locking mechanism can be used for locking the positions of the sliding rod and the sleeve; one end of the sliding rod is hinged with the seat plate, and the sleeve is hinged with the adjusting part.

The beneficial effect of above-mentioned scheme lies in: the adjusting part is fixed on the seat body, and the seat body can rotate relative to the adjusting part only by adjusting the angle adjuster, so that multi-angle adjustment of the wheelchair can be realized, particularly, the zero gravity function can be realized, and the riding comfort is improved; the seat body is fixed with the seat body only through the adjusting part, and compared with the prior art without a complex connecting rod hinging and locking structure, the whole structure of the wheelchair is simplified, and the operation is simpler and more convenient; the angle regulator has simple structure and low cost.

In a preferable scheme, the adjusting part is a U-shaped rod, and two ends of the adjusting part are hinged to the rear ends of two sides of the seat board.

In the scheme, the structure is simplified and the installation is easy by the adjusting part of the U-shaped rod structure.

In a preferred embodiment, the adjusting portion and the seat body are detachably fixed.

In the above scheme, it is removable between regulating part and the pedestal, not only make things convenient for folding, carry or store, can change different pedestals for the seat body moreover to be applied to different scenes.

The utility model provides a preferred scheme, the front end of bedplate still is equipped with pedal assembly, pedal assembly includes the connecting rod of two parallels, the upper end of connecting rod with the front end of bedplate side is articulated and the angularly adjustable, still includes two transverse connection the foot bar of connecting rod bottom and locate two footboards on the foot bar, the footboard pass through an adjusting part install in on the foot bar, adjusting part including wear to locate on the foot bar and rotatable and the location U type seat and articulate be used for fixing in the inslot of U type seat the installation piece of footboard.

In the scheme, the pedal can adjust different angles, is convenient for users in different body states, and achieves the most comfortable foot placing effect.

The utility model provides a preferred scheme, the both sides of bedplate all are equipped with armrest apparatus, armrest apparatus includes the mounting panel of L type, the xarm of mounting panel with the bedplate is fixed, and the perpendicular arm top of mounting panel articulates there is a connecting plate, be fixed with the handrail on the connecting plate, still articulate on the connecting plate and have an elasticity and detain, have on the perpendicular arm of mounting panel with elasticity detains complex draw-in groove, work as elasticity is detained and is detained during the draw-in groove, can make the connecting plate vertical be fixed in on the mounting panel. Further, the cross arm of the mounting plate has an elongated mounting hole so that the armrest apparatus can be laterally adjusted in a fixed position relative to the seat pan.

In the scheme, the elastic buckle can be separated from the clamping groove by pressing the elastic buckle, so that the handrail can rotate relative to the mounting plate, a user can conveniently sit on the wheelchair, and the handrail can be recovered and locked after the user gets on the wheelchair. The mounting plate is laterally adjustable to accommodate users of different sizes.

The utility model provides a preferred scheme, the back with connect through the angle adjusting device who locates both sides between the bedplate, angle adjusting device has the adjusting box in triangle-shaped space including inside, the rear end of bedplate side with the base of adjusting box is fixed, and the bottom of back then through its marginal installation pole with the top of adjusting box is articulated, just be equipped with the telescopic link that stretches out in the installation pole, have in the adjusting box a plurality of be arc distribution with telescopic link joint complex spacing groove, make the back with can be a plurality of different angle between the bedplate and fix.

In the above scheme, the backrest can realize different fixed angles by clamping the telescopic rod in different limiting grooves, and the comfort of use is further improved.

According to a preferable scheme, the seat body comprises bilaterally symmetrical supports and a plurality of cross beams which are connected with the left and right supports, the supports comprise two supporting arms which are arranged in a herringbone mode in the front and back directions, a mounting box which is connected with the two supporting arms, and wheels which are arranged at the bottom ends of the supporting arms, one supporting arm is fixedly connected with the mounting box, the other supporting arm is hinged with the mounting box and can be folded downwards towards the other supporting arm, and the adjusting part is fixed at the top of the mounting box.

In the above scheme, two support arms can fold downwards, are convenient for accomodate, and the mounting box not only is used for connecting the support arm, still is used for fixing regulating part, overall structure is indirect.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a side view schematically illustrating the overall structure of the wheelchair according to the embodiment;

FIG. 2 is a perspective view of the overall structure of the wheelchair according to the embodiment;

FIG. 3 is a partial structural view of a seat body according to an embodiment;

FIG. 4 is a schematic sectional view of an angle adjuster according to an embodiment;

FIG. 5 is a schematic structural diagram of an armrest apparatus according to an embodiment;

FIG. 6 is a schematic view showing an installation structure among the seat plate, the backrest and the angle adjusting means in the embodiment;

fig. 7 is a schematic structural diagram of a base in the embodiment.

Detailed Description

The invention is further explained below with reference to the drawings:

in the embodiment of the scheme, the front refers to one side of the wheelchair for placing the feet; the back is the backrest side of the wheelchair.

Referring to fig. 1 and 2, a wheelchair with a novel structure comprises a seat body 100 having a backrest 1 and a seat plate 2, and a seat body 200 for supporting the seat body 100, a regulating part 3 arranged at an included angle with the seat plate 2 is arranged below the seat plate 2, the regulating part 3 is hinged to the seat plate 2 at the rear side, the regulating part 3 is further arranged between the seat plate 2 and is used for regulating and fixing an angle regulator 4 for regulating the angle between the regulating part and the seat plate 2, and the seat body 100 is fixed on the seat body 200 through the regulating part 3. The angle adjuster 4 for the seat has a plurality of structural types, and is a mature product, and therefore is not described in detail. When in use, the seat board 2 and the adjusting part 3 can be fixed at different included angles by adjusting the angle adjuster 4, so as to change the inclination of the seat body 100. When the included angle between the backrest 1 and the seat board 2 is 115 degrees, 145 degrees or 165 degrees, and the included angle between the seat board 2 and the horizontal plane is 72 degrees, 50 degrees or 28 degrees, the body can be in a weightless state, the body feeling is in a completely relaxed and relaxed state, and the comfort is extremely high, namely, the so-called zero gravity state is achieved. And the seat body 100 is fixed with the seat body 200 only through the adjusting part 3, compared with the prior art without a complex connecting rod 51 hinging and locking structure, the whole structure of the wheelchair is simplified, and the operation is simpler and more convenient.

Referring to fig. 3, in a preferred embodiment, the adjusting part 3 is a U-shaped rod, and both ends of the adjusting part 3 are hinged to the rear ends of both sides of the seat board 2.

In the above embodiment, the adjusting part 3 of the U-shaped rod structure simplifies the structure and is easy to install.

Referring to fig. 4, in a preferred embodiment, the angle adjuster 4 comprises a sleeve 41, a sliding rod 42 slidably fitted in the sleeve 41 and having a length larger than that of the sleeve 41, a damping layer 43 sandwiched between the sliding rod 42 and the sleeve 41, and a locking mechanism 44 operable to lock the position of the sliding rod 42 and the sleeve 41; one end of the slide rod 42 is hinged to the seat plate 2, and the sleeve 41 is hinged to the adjusting part 3. The lock mechanism 44 includes: a long through groove formed along the circumferential wall of the sleeve 41, and a clamp spring 441 sleeved outside the damping layer 43 and used for locking the damping layer 43 and the sliding rod 42, wherein one end of the clamp spring 441 located in the sleeve 41 is limited, and an outer end 442 extending out of the long through groove is used for controlling the tightness of the clamp spring 441, so that the sliding rod 42 is locked or released; the tightness of the clamp spring 441 can be controlled by a brake line 443, that is, the outer end 442 of the clamp spring is pulled by the brake line 443 to move the clamp spring 441 along the long through groove, so that the clamp spring 441 is loosened, at the moment, the friction force between the slide rod 42 and the damping layer 43 is reduced, and the slide rod 42 can move relative to the sleeve 41 under the action of external force to adjust the angle of the wheelchair; when the brake cable 443 is released, the clamp spring 441 is reset, so that the damping layer 43 is locked with the sliding rod 42; the damping layer 43 also enables the sliding rod 42 to slowly slide in the adjusting process, so that the safety and convenience in angle adjustment are ensured. Of course, the locking mechanism 44 can also be realized by other means, such as a spring clip or the like provided on the sleeve 41 and lockable in cooperation with the slide rod 42.

In the above embodiment, the angle adjuster 4 has a simple structure and a low cost.

In a preferred embodiment, the angle adjuster 4 is a gas spring with a pull wire, and two ends of the gas spring are respectively hinged to the seat plate 2 and the adjusting part 3.

In the above-mentioned embodiment, adopt the air spring structure, only need the pulling to act as go-between, can adjust the extension length of slide bar in the air spring through user's dead weight, convenient operation, simple structure, stability and travelling comfort when adjusting are stronger.

Referring to fig. 1 and 2, in a preferred embodiment, the adjusting portion 3 and the seat body 200 are detachably fixed.

In the above embodiment, the adjusting portion 3 and the seat body 200 are detachable, so that the seat body 100 can be conveniently folded, carried or stored, and different seat bodies 200 can be replaced for different applications.

Referring to fig. 3, in a preferred embodiment, a pedal assembly 5 is further disposed at the front end of the seat board 2, the pedal assembly 5 includes two parallel connecting rods 51, the upper ends of the connecting rods 51 are hinged to the front ends of the lateral sides of the seat board 2 and are adjustable in angle, the pedal assembly further includes a pedal rod 52 transversely connecting the bottom ends of the two connecting rods 51, and two pedals 53 disposed on the pedal rod 52, the pedals 53 are mounted on the pedal rod 52 through an adjusting assembly, and the adjusting assembly includes a U-shaped seat 541 which is inserted into the pedal rod 52 and is rotatable and positioned, and a mounting block 542 which is hinged in a groove of the U-shaped seat 541 and is used for fixing the pedals 53. The angle-adjustable hinge structure between the connecting rod 51 and the seat plate 2 is conventional in wheelchair structure and is not described again; the U-shaped seat 541 is disposed on the pedal lever 52 in a penetrating manner, and can rotate relative to the pedal lever 52 by adjusting the tightness, so that the pedal 53 can rotate back and forth to adjust the angle, and the mounting block 542 is hinged in the groove of the U-shaped seat 541, so that the pedal 53 can rotate left and right to adjust the angle. In this embodiment, the pedals 53 can be adjusted at different angles, so as to facilitate users in different physical states and achieve the most comfortable foot-placing effect.

Referring to fig. 1, 2 and 5, in a preferred embodiment, the seat plate 2 is provided with armrest devices 6 on both sides, each armrest device 6 includes an L-shaped mounting plate 61, a cross arm of the mounting plate 61 is fixed to the seat plate 2, a connecting plate 62 is hinged to a top end of a vertical arm of the mounting plate 61, an armrest 63 is fixed to the connecting plate 62, an elastic buckle 64 is hinged to the connecting plate 62, a clamping groove 65 matched with the elastic buckle 64 is formed in the vertical arm of the mounting plate 61, and when the elastic buckle 64 is buckled into the clamping groove 65, the connecting plate 62 is vertically fixed to the mounting plate 61. Further, the cross arm of the mounting plate 61 has an elongated mounting hole 611 so that the armrest apparatus 6 can be laterally adjusted in a fixed position relative to the seat plate 2. Wherein, the specific structure of the elastic buckle 64 is: the middle part of the elastic buckle 64 is hinged with the connecting plate 62, a compression spring is propped between the upper end and the connecting plate 62, and the lower end can be clamped in the clamping groove 65 of the mounting plate 61. When the handrail resetting device is used, the upper end of the elastic buckle 64 is pressed to enable the lower end of the elastic buckle 64 to be separated from the clamping groove 65, the handrail 63 can rotate relative to the mounting plate 61, the handrail 63 only needs to be turned upwards when the handrail resets, and when the locking position is reached, the elastic buckle 64 is automatically clamped into the clamping groove 65 under the action of the compression spring to lock the connecting plate 62 and the mounting plate 61.

In the above embodiment, the elastic buckle 64 is pressed to separate the elastic buckle 64 from the slot 65, so that the armrest 63 can rotate relative to the mounting plate 61, and thus, a user can conveniently sit on the wheelchair and then restore and lock the armrest 63 after getting on the wheelchair. The mounting plate 61 is laterally adjustable to accommodate users of different sizes.

Referring to fig. 1 and 6, in a preferred embodiment, the backrest 1 is connected to the seat plate 2 through angle adjusting devices 7 disposed at two sides, each angle adjusting device 7 includes an adjusting box 71 having a triangular space inside, the rear end of the side surface of the seat plate 2 is fixed to the bottom edge of the adjusting box 71, the bottom end of the backrest 1 is hinged to the top of the adjusting box 71 through a mounting rod 11 at the edge of the backrest, an extending telescopic rod 111 is disposed in the mounting rod 11, and a plurality of limiting grooves 711 distributed in an arc shape and engaged with the telescopic rod 111 are disposed in the adjusting box 71, so that the backrest 1 and the seat plate 2 can be fixed at a plurality of different angles. Among them, the preferred mode is: the seat board 2 is hinged with the rear end of the bottom edge of the adjusting box 71, the bottom edge of the adjusting box 71 is turned upwards at the same time for limiting the seat board 2, so that the seat board 2 can only be turned downwards relative to the adjusting box 71, and the seat board 2 is convenient to fold backwards for storage. The installation and adjustment structure of the telescopic rod 111 in the installation rod 11 is a conventional structure in the wheelchair, and is not described in detail.

In the above embodiment, the backrest 1 can be fixed at different angles by clamping the telescopic rod 111 in different limiting grooves 711, so that the comfort of use is further improved.

Referring to fig. 7, in a preferred embodiment, the base 200 includes a left-right symmetric support 81 and a plurality of cross beams 82 connecting the left and right support 81, the support 81 includes two support arms 811 arranged in a herringbone shape, a mounting box 812 connecting the two support arms 811, and wheels 813 provided at the bottom ends of the support arms 811, one support arm 811 is fixedly connected to the mounting box 812, the other support arm 811 is hinged to the mounting box 812 and has an upper limit, so that the support arm 811 can only be folded downward toward the other support arm 811, and the adjusting part 3 is fixed to the top of the mounting box 812.

In the above embodiment, the two supporting arms 811 can be folded downward for easy storage, and the mounting box 812 is used not only for connecting the supporting arms 811 but also for fixing the adjusting part 3, so that the overall structure is more compact.

The above description is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides a wheelchair of novel structure, includes the seat body that has back and bedplate, and is used for supporting the pedestal of seat body, its characterized in that: an adjusting part which forms an included angle with the seat board is arranged below the seat board, the adjusting part and the seat board are hinged with each other at the rear side, an angle adjuster for adjusting and fixing the angle of the adjusting part and the seat board is also arranged between the adjusting part and the seat board, and the seat body is fixedly arranged on the seat body through the adjusting part; the angle adjuster comprises a sleeve, a sliding rod, a damping layer and a locking mechanism, wherein the sliding rod is in sliding fit in the sleeve and is longer than the sleeve, the damping layer is clamped between the sliding rod and the sleeve, and the locking mechanism can be used for locking the positions of the sliding rod and the sleeve; one end of the sliding rod is hinged with the seat plate, and the sleeve is hinged with the adjusting part.

2. The wheelchair of claim 1, wherein: the adjusting part is a U-shaped rod, and two ends of the adjusting part are hinged to the rear ends of two sides of the seat board.

3. The wheelchair of claim 1, wherein: the adjusting part and the seat body are of a detachable fixing structure.

4. A wheelchair of a novel structure according to claim 1, wherein: the front end of bedplate still is equipped with pedal assembly, pedal assembly includes the connecting rod of two parallels, the upper end of connecting rod with the front end of bedplate side is articulated and the angularly adjustable, still includes two transverse connection the foot bar of connecting rod bottom and locate two footboards on the foot bar, the footboard pass through an adjusting part install in on the foot bar, adjusting part including wear to locate on the foot bar and rotatable and location U type seat and articulate in being used for of the inslot of U type seat is fixed the installation piece of footboard.

5. The wheelchair of claim 1, wherein: the handrail device comprises an L-shaped mounting plate, a cross arm of the mounting plate is fixed with the seat plate, a connecting plate is hinged to the top end of a vertical arm of the mounting plate, a handrail is fixed on the connecting plate, an elastic buckle is hinged to the connecting plate, a clamping groove matched with the elastic buckle is formed in the vertical arm of the mounting plate, and when the elastic buckle is buckled into the clamping groove, the connecting plate can be vertically fixed on the mounting plate.

6. The wheelchair as claimed in claim 5, wherein: the cross arm of the mounting plate has an elongated mounting hole so that the armrest apparatus can be laterally adjusted in a fixed position relative to the seat pan.

7. The wheelchair of claim 1, wherein: the back with connect through the angle adjusting device who locates both sides between the bedplate, angle adjusting device has the adjusting box in the triangle-shaped space including inside, the rear end of bedplate side with the base of adjusting box is fixed, and the bottom of back then through the installation pole at its edge with the top of adjusting box is articulated, just be equipped with the telescopic link that stretches out in the installation pole, have in the adjusting box a plurality of be the arc distribute with telescopic link joint complex spacing groove, make the back with can be a plurality of different angles between the bedplate and fix.

8. The wheelchair of claim 1, wherein: the seat body comprises bilaterally symmetrical supports and a plurality of cross beams connected with the left and right supports, each support comprises two support arms arranged in a herringbone mode in the front and back direction, a mounting box connected with the two support arms and wheels arranged at the bottom ends of the support arms, one support arm is fixedly connected with the mounting box, the other support arm is hinged with the mounting box and can be folded downwards towards the other support arm, and the adjusting part is fixed at the top of the mounting box.

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