CN210582882U

CN210582882U - Multifunctional seat device for wheelchair

Info

Publication number: CN210582882U
Application number: CN201920632532.5U
Authority: CN
Inventors: 唐良振; 吴焘
Original assignee: Nanjing Kangni Intelligent Technology Co ltd
Current assignee: Nanjing Kangni Intelligent Technology Co ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-05-22
Anticipated expiration: 2029-05-06

Abstract

The utility model relates to a multifunctional seat device for a wheelchair, which comprises a side supporting plate, a T-shaped plate, a handrail, a table plate, a seat plate, a leg support, a pedal and a pedal pipe, wherein one end of the side supporting plate is provided with an angle adjusting device and is hinged on two sides of the seat plate, the T-shaped plate is formed by mutually and vertically connecting a transverse plate and a vertical plate, the side supporting plate is provided with a vertically arranged jack, the front part of the side supporting plate is provided with a first slot, the vertical plate is connected in the jack in a sliding way, the interior of the vertical plate is provided with a first locking mechanism, the handrail is connected on the transverse plate; the table plates are provided with a pair of table plates which are respectively connected in a sliding way in the first slots of the two side supporting plates, one ends of the two table plates are respectively provided with a concave groove and a convex groove which are matched with each other, and the other ends of the two table plates can be inserted into the second slots; the pedal pipe is fixedly connected between the seat board and the pedal, the leg support is connected to the pedal pipe in a sliding mode, the leg support is provided with a second locking mechanism, and the seat device has multiple functions of a table board capable of being stored and assembled, an armrest capable of being adjusted at multiple angles, a leg support capable of being adjusted up and down and the like.

Description

Multifunctional seat device for wheelchair

Technical Field

The utility model relates to a movable table plate mechanism for a wheelchair, which belongs to the technical field of table and chair manufacture.

Background

At present, a wheelchair is a tool for riding instead of walk commonly used by patients or old people, and because the patients or the old people are inconvenient to move and daily activities such as eating, drinking and the like need to be carried out on the wheelchair in life, the design of a multifunctional wheelchair becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that exists among the prior art, provide a multi-functional seat device, the device is equipped with the table that can accomodate and assemble, but the handrail of multi-angle adjustment and the leg support of adjusting from top to bottom.

In order to achieve the above object, the utility model provides a technical scheme does: a multifunction seat apparatus for a wheelchair, characterized in that: the foldable table comprises side supporting plates, T-shaped plates, handrails, a table plate, a seat plate, leg supports, pedals and pedal pipes, wherein angle adjusting devices are arranged at one ends of the two side supporting plates and hinged to the two sides of the seat plate through the angle adjusting devices; the two table plates are respectively a first table plate and a second table plate, the first table plate and the second table plate are respectively connected in the first slots of the two side supporting plates in a sliding mode, one ends of the first table plate and the second table plate are respectively provided with a concave groove and a convex groove which are matched with each other, and the other ends of the first table plate and the second table plate can be inserted into the second slots; the pedal pipe is fixedly connected between the seat board and the pedal, the leg support is connected to the pedal pipe in a sliding mode, and the leg support is provided with a second locking mechanism.

The technical scheme is further designed as follows: an ejection pressure spring is arranged in the first slot, one end of the ejection pressure spring is fixed in the first slot, and the other end of the ejection pressure spring can tightly abut against one end of the table plate; the utility model discloses a table button, including the board, the board is held up to side is equipped with the button groove at first slot opening part, the button inslot is equipped with table button and button pressure spring, button pressure spring one end is fixed at the button inslot, and the other end is fixed at table button one end, table button sliding connection is at the button inslot, but the button groove is stretched out to the other end, the table other end can tightly support the one side that stretches out button groove part at the table button.

The table board is characterized in that a blind hole is formed in the second slot, a stop block and a stop block pressure spring are arranged in the blind hole, one end of the stop block pressure spring is fixed in the blind hole, the other end of the stop block pressure spring is fixed on the stop block, the stop block is connected in the second blind hole in a sliding mode, one end of the stop block pressure spring can extend out of the second blind hole, and a groove is formed in the position, corresponding.

First locking mechanism includes gag lever post and handrail pressure spring, jack one side inner wall is equipped with a plurality of constant head tanks, the riser is hollow structure, and one side bottom is equipped with first through-hole, and the opposite side top is equipped with the second through-hole, and the gag lever post is located inside the riser, the gag lever post middle part is articulated with the riser, and first through-hole can be stretched out and support the constant head tank in the bottom, and the handrail pressure spring sets up in gag lever post top one side, and gag lever post top opposite side articulates there is the handrail button, handrail pressure spring one end is connected with the riser, and the other end is connected with the gag lever post, the handrail button can stretch out.

The handrail is provided with a groove hole, two inner sides of the groove hole are provided with wave teeth which are oppositely arranged, the transverse plate is provided with a connecting seat, a damping plate is fixed on the connecting seat, two sides of the damping plate are provided with elastic teeth which are matched with the wave teeth, and the handrail is connected to the connecting seat in a sliding mode through the meshing of the wave teeth and the elastic teeth.

A gap is formed between the lower surface of the damping plate and the upper surface of the connecting seat, sliding plates are arranged on the two inner sides of the slotted hole and located below the wavy teeth, and the two sliding plates are connected in the gap between the damping plate and the connecting seat in a sliding mode.

The handrail front end is equipped with the saucer, the saucer top is equipped with the boss of transversal personally submitting the rectangle, sliding connection has saucer pressure spring and unsteady tooth on the boss, saucer pressure spring one end tightly supports on the saucer, and the other end tightly supports in unsteady tooth bottom, unsteady tooth top is equipped with the tooth, the handrail bottom is equipped with the first internal tooth with unsteady tooth matched with, boss axis department is equipped with first pinhole, and the handrail is equipped with the second pinhole in corresponding the position, the saucer passes first, second pinhole connection on the handrail through the pin to rotate with the handrail and be connected.

Second locking mechanism includes that the leg holds in the palm button, fixed plate, leg support pressure spring and locking iron sheet, the leg holds in the palm including the sleeve pipe and fixes the layer board in the sleeve pipe both sides, and the leg holds in the palm to establish on the footboard pipe through the sleeve pipe cover to with footboard pipe sliding connection, be equipped with the third through-hole on the sleeve pipe, the footboard pipe is equipped with a plurality of spacing holes, the fixed plate is fixed on the sleeve pipe, the leg holds in the palm the button and is located fixed plate front side and upper portion and articulates on the fixed plate, the locking iron sheet is located fixed plate rear side and middle part and articulates on the fixed plate, leg support pressure spring one end is fixed at the fixed plate rear side, and the other end tightly supports at locking iron sheet top, and locking iron sheet top can stretch out the third through-hole and tightly support in spacing downthehole under the effect of leg support pressure spring, and locking iron sheet bottom can tightly support.

The angle adjusting device comprises a floating gear, a side supporting plate pressure spring, a fixed gear sleeve, a fixed seat and a side supporting plate button, wherein a tooth groove is formed in the inner side of the side supporting plate, side supporting plate teeth matched with the floating gear are arranged in the tooth groove, one end of the fixed gear sleeve is fixed on the fixed seat, the other end of the fixed gear sleeve is open, the fixed seat is fixed on the seat plate, second internal teeth matched with the floating gear are arranged in the fixed gear sleeve, the fixed gear sleeve is covered on the tooth groove and is rotationally connected with the tooth groove, a floating tooth cavity is formed between the fixed gear sleeve and the tooth groove, the pressure spring and the floating gear are both arranged in the floating tooth cavity, the pressure spring is positioned between the fixed gear sleeve and the floating gear, two ends of the floating gear are respectively meshed with the side supporting plate teeth and the second internal teeth, a through hole is formed in the tooth groove, the button is arranged on the outer side supporting plate, one end of the button penetrates through the through hole and, and when the button is released, the pressure spring can push the floating gear to slide towards one side of the tooth groove and be meshed with the side supporting plate teeth.

The fixed gear sleeve shaft part is provided with a connecting rod, the connecting rod shaft part is provided with a third pin hole, the floating gear shaft part is provided with a gear hole, a fourth pin hole is formed in the tooth socket, one end of the connecting rod penetrates through the pressure spring and the gear hole in sequence and then is supported in the tooth socket, and the fixed gear sleeve penetrates through the third pin hole and the fourth pin hole in sequence and is connected to the tooth socket through a pin.

The invention has the beneficial effects that:

the table board in the seat device is divided into two parts which are respectively contained in the side supporting boards, so that the normal use of the wheelchair is not influenced, and the space is not occupied; the two table plates can be arranged on the armrests at the two sides after being spliced, so that the use is convenient; the side handrail plates are hinged on the seat plate through the angle adjusting devices, so that the angle of the side handrail plates can be adjusted, the supporting position of the handrail positioned on the side handrail plates can be adjusted, and the handrail can slide on the side handrail plates back and forth and up and down through the T-shaped plates, so that the handrail can be adjusted in multiple angles to adapt to different users; the leg support can be connected on the pedal pipe in a sliding mode and can support different positions of the leg.

In the seat device, the two table plates are respectively arranged in the side supporting plates at the two sides, so that the side supporting plates at the two sides, the handrails and all parts have the same structure, the mold opening production of each part is convenient, the production efficiency is high, and the cost is low.

Drawings

FIG. 1 is a first schematic structural diagram of a seat apparatus according to an embodiment of the invention;

FIG. 2 is a second schematic structural view of a seat apparatus according to an embodiment of the present invention;

FIG. 3 is a third schematic structural view of a seat assembly according to an embodiment of the present invention;

FIG. 4 is an exploded view of the table and side rail structures of the seating unit of the present invention;

FIG. 5 is a top view of a table and side rails of the present invention;

FIG. 6 is a cross-sectional view taken along the line A-A in FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 6;

FIG. 8 is a schematic diagram of a concave groove and a convex groove of a table plate of a seat device according to an embodiment of the present invention;

FIG. 9 is a top view of a table and armrest assembly of the seating unit of the present invention;

FIG. 10 is an enlarged view in partial section of FIG. 9;

FIG. 11 is a front view of a table and armrest assembly of a seating unit according to an embodiment of the present invention;

FIG. 12 is an enlarged view of a portion of FIG. 11;

FIG. 13 is a schematic view of the structure of an armrest and a side rest in a seating unit according to an embodiment of the invention;

FIG. 14 is an enlarged view of a portion of FIG. 13;

FIG. 15 is a schematic view of an armrest in a seating unit according to an embodiment of the present invention;

fig. 16 is an exploded view of the structure of fig. 15.

FIG. 17 is an exploded view of the armrest and cup holder configuration of the seating unit in accordance with the exemplary embodiment of the present invention;

FIG. 18 is an enlarged partial view of FIG. 17;

FIG. 19 is a cross-sectional view of an armrest and cup holder in a seating unit in accordance with an embodiment of the present invention;

fig. 20 is a partially enlarged view of fig. 19.

FIG. 21 is a schematic view of a leg rest of the seating unit of the present invention;

FIG. 22 is an enlarged view of a portion of FIG. 21;

FIG. 23 is a cross-sectional view of a leg rest in a seating unit in accordance with an embodiment of the present invention;

fig. 24 is a partially enlarged view of fig. 23.

FIG. 25 is an exploded perspective view of an angle adjustment mechanism of a seat assembly in accordance with an embodiment of the present invention;

fig. 26 is a sectional view of an angle adjusting apparatus in a seat apparatus according to an embodiment of the present invention.

FIG. 27 is a front view of the floating gear of FIG. 26;

FIG. 28 is a rear view of FIG. 27;

fig. 29 is a top view of the teeth on the floating gear of fig. 27.

In the figure: 1-side butt plate, 11-first slot, 12-first blind hole, 13-side butt plate body, 131-cover plate, 14-jack, 15-first button slot, 2-handrail, 21-second slot, 22-second blind hole, 3-table plate, 31-concave slot 31, 32-convex slot, 33-limit slot, 4-ejection pressure spring, 5-first button, 51-button pressure spring, 52-flank, 6-stop, 61-stop pressure spring, 7-T-shaped plate 71-transverse plate, 72-vertical plate, 721-first through hole, side butt plate 16-positioning slot, 722-limit rod, 723-hinge point, 724-limit block, 725-mounting column, 726-handrail pressure spring, 727-second button; 23-slotted hole, 24-wave tooth, 25-sliding plate, 26-guide groove, side support plate 21-connecting seat, 22-threaded hole, 27-damping plate, 271-elastic tooth, 272-guide piece, 273-pressing plate and 274-bolt; 28-groove, 29-cavity, 8-cup holder, 81-holder body, 82-connecting plate, 83-first boss, 84-connecting column, 85-cup holder pressure spring, 86-floating tooth, 87-pin and 88-nut; 9-leg support, 91-sleeve, 92-supporting plate, 93-third through hole, 94-second button, 941 positioning groove, 95-fixing plate, 951-iron sheet groove, 96-locking iron sheet, 961-lug, 962-second boss and 97-leg support pressure spring; 17-tooth groove, 171-side supporting plate tooth, 18-circular groove, 181-button hole, 19-second button groove, 10-floating gear, 101-gear hole, 102-spring groove, 20-fixed gear sleeve, 201-internal tooth, 202-connecting rod, 203-third boss, 204-side supporting plate pressure spring, 30-fixed seat, 40-third button, 401-push rod, 402-spring plate, 50-seat plate, 60-pedal pipe, 601-positioning hole and 70-pedal.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

Examples

As shown in fig. 1, 2 and 3, the multifunction seat device for a wheelchair of the present embodiment includes a side rest 1, a T-shaped plate 7, an armrest 2, a table plate 3, a seat plate 50, a cup holder 8, a leg holder 9, a pedal 70 and a pedal pipe 60. One end of the two side buttresses 1 is provided with an angle adjusting device and is hinged at two sides of the seat board 50 through the angle adjusting device, and the T-shaped board 7 is formed by mutually and vertically connecting a transverse board 71 and a vertical board 72.

Referring to fig. 4, the side handrail 1 is provided with a vertically arranged insertion hole 14, the front part of the side handrail is provided with a first insertion groove 11, a vertical plate 72 is slidably connected in the insertion hole 14, a first locking mechanism is arranged inside the vertical plate 72, the handrail 2 is slidably connected on the transverse plate 71, and the bottom of the front end of the handrail 2 is provided with a cup holder 8; the pedal tube 60 is fixedly connected between the seat plate 50 and the pedal 70, the leg rest 9 is slidably connected to the pedal tube 60, and the leg rest 9 is provided with a second locking mechanism.

Side handrail 1 includes that side handrail main part 13 and lid establish the apron 131 in side handrail main part one side, and back on side handrail main part 13 is covered to apron 131, and the front portion of side handrail forms first slot 11, and side handrail main part 13 is equipped with first button groove 15 in the opening part one side of first slot 11.

Referring to fig. 5, in the seat device of this embodiment, two table plates 3 are provided, which are a first table plate and a second table plate, respectively, and the first table plate and the second table plate are respectively disposed in the first slots 11 of the two side buttresses 1 and are slidably connected to the first slots, referring to fig. 6, two first blind holes 12 are provided at the bottom of the inner side of the first slot 11, a push-out compression spring 4 is respectively disposed in the two first blind holes 12, one end of the push-out compression spring 4 is fixed in the first blind hole 12, the other end of the push-out compression spring is tightly abutted to one end of the table plate 3, and the two push-out compression springs 4 are arranged in parallel to each other, so that the table plate 3 can; referring to fig. 4, the first button 5 is slidably connected in the first button groove 15, one end of a button pressure spring 51 is fixed in the first button groove 15, the other end of the button pressure spring is tightly abutted to one end of the first button 5, two sides of an opening of the first button groove 15 are provided with hanging edges extending to the middle of the opening, two sides of the first button 5 are provided with side wings 52, one end of each side wing 52 can be tightly abutted to the inner side of each hanging edge, so that the button 5 can be limited in the button groove, as shown in fig. 7, the moving direction of the button 5 is perpendicular to the moving direction of the table plate 3. In a natural state, the other end of the first button 5 can extend out of the first button groove 15 under the action of the button pressure spring 51 and block the opening of the first slot 11, so that the table plate 3 can be limited in the first slot 11, at the moment, one end of the table plate 3 is compressed and pushed out of the pressure spring 4, and the other end of the table plate is tightly propped against one side of the first button 5; when the first button 5 is pressed, the first button 5 compresses the button pressure spring 51, the other end of the first button 5 can slide out of the range of the opening of the first slot 11, so that the opening of the first slot is exposed, and the table plate 3 can be ejected out of the first slot 11 under the action of the ejection pressure spring 4.

As shown in fig. 8, the other ends of the two tables 3 are respectively provided with a concave groove 31 and a convex groove 32 which are matched with each other. After the table plate 3 is taken out, the two table plates can be spliced through the concave groove 31 and the convex groove 32, the longitudinal section of the convex groove is Z-shaped, the middle part of the concave groove is provided with an opening, the convex groove penetrates through the opening of the concave groove from the bottom and is clamped in the concave groove during splicing, pressure is applied from the upper part of the table plates, the concave groove 31 and the convex groove 32 can form interlocking, the pressure is applied from the lower part, and the concave groove 31 and the convex groove 32 can be separated from each other; the other ends of the two table plates can be respectively inserted into the two armrests 2 after splicing.

In this embodiment, the inner side of the front end of the armrest 2 is provided with a second slot 21, the second slot 21 is provided with openings at the inner side and the front end of the armrest, one end of the table plate 3 can be inserted into the second slot 21 (as shown in fig. 11 and 12), the bottom of the inner side of the second slot 21 is provided with a second blind hole 22, one end of a stopper pressure spring 61 is fixed in the second blind hole 22, the other end is fixed on the stopper 6, the stopper 6 is slidably connected in the second blind hole 22, and one end can extend out of the second blind hole, the end of one end of the table plate 3 is provided with a limit groove 33, the width of the limit groove 33 is gradually increased from inside to outside and is in an isosceles trapezoid shape, the end of one end of the stopper 6 extending out of the second blind hole matches the shape of the limit groove 33 (as shown in fig. 9 and 10), when the table plate 3 is inserted into the second slot 21, the table plate 3 pushes the stopper 6 into the second blind hole 22 through, the stop block 6 extends out of the second blind hole 22 under the action of the stop block pressure spring 61 and is embedded with the limiting groove 33 to limit the table plate 3, otherwise, when the table plate 3 is drawn out, the inclined surface of the limiting groove 33 pushes the inclined surface of the stop block 6 to push the stop block 6 into the second blind hole 22, and therefore the table plate 3 can be drawn out. In this embodiment, one end of the desk plate 3 has an L-shaped cross section (as shown in fig. 9), the shape of the second slot 21 matches that of the desk plate 3, and when the desk plate 3 is inserted into the second slot 21, the desk plate 3 is not likely to move left or right.

In the seat device of this embodiment, because design two of splicing with table 3, and set up two tables respectively in both sides handrail 1, make both sides handrail 1 and ejecting pressure spring 4, button 5, button pressure spring 51, dog 6 and dog pressure spring 61 isotructure the same, owing to need carry out the die sinking when each part of preparation, two the same structures only need open a mould, the die sinking quantity of the reducible each part of table mechanism of this embodiment, thereby improve production efficiency, and the cost is reduced.

Referring to fig. 13, in the seat device of the present embodiment, the side buttresses and the side buttresses

The cross section of the side supporting plate vertical plate 72 is rectangular, and the vertical plate 72 is inserted into the insertion hole 14 and used for fixing the handrail 1 and playing a role in guiding the height adjustment of the handrail 1.

Referring to fig. 14, in the present embodiment, a plurality of positioning grooves 16 are formed on an inner wall of one side of the insertion hole 14, a vertical plate 72 is slidably connected in the insertion hole, and the vertical plate 72 is a hollow structure; the first locking mechanism comprises a limiting rod 722 arranged in a vertical plate 72, a hinge point 723 is arranged in the middle of the limiting rod 722 and is hinged with the vertical plate 72 at the hinge point, the bottom of the limiting rod 722 protrudes to one side to form a limiting block 724, the vertical plate 12 is provided with a first through hole 721 at the position corresponding to the limiting block, the size of the limiting block 724 is smaller than that of the first through hole 721, the other side of the bottom of the limiting rod 722 is provided with an installation column 725, a handrail pressure spring 726 is sleeved on the installation column, one end of the handrail pressure spring 726 is sleeved on the installation column, the other end of the handrail pressure spring 726 is tightly abutted to the inner wall of the other side of; under the free state, gag lever post 722 bottom can be under the effect of handrail pressure spring 726 to be close to first through-hole 721 direction motion for stopper 724 stretches out first through-hole, because the jack 14 inner wall is equipped with constant head tank 16, the stopper that stretches out first through-hole can further support in the constant head tank, thereby locks between riser 72 and the side handrail 1, and riser 72 can't remove.

The top of the limiting rod 722 is hinged with a second button 727, a second through hole is formed in the position, corresponding to the second button, of the vertical plate 72, and the second through hole is formed in the part, extending out of the jack 14, of the vertical plate 72; second button 727 one end is articulated with gag lever post 722, the second through-hole is stretched out to the other end, then the user accessible is pressed the second button that stretches out the second through-hole and is made gag lever post 722 top to the direction removal of keeping away from the second through-hole, lever effect through gag lever post 722, the gag lever post bottom is to keeping away from first through-hole 721 direction removal, and then make stopper 724 follow roll-off in the constant head tank 16, with riser 72 unblock, then lift or push down the height regulation that handrail 2 can realize the handrail, otherwise, loosen the button, gag lever post 722 returns under handrail pressure spring 726 effect, continue to lock riser 72.

A plurality of constant head tanks 16 are in the inboard vertical direction evenly distributed of following of jack 14 in this embodiment, and then can form a plurality of height gears, increase the height range that the handrail is adjustable to adapt to different crowds.

As shown in fig. 15, in the seat device of this embodiment, the cross plate 71 is provided with a connecting seat 21, the connecting seat is provided with a threaded hole 22, the middle of the armrest 2 is provided with a slot 23, and the slot 23 is provided with a damper plate side armrest plate 27.

Side buttresses shown in connection with FIG. 16

The two inner sides of the slot 23 are respectively provided with a wave tooth 24 and a sliding plate 25 which are oppositely arranged, and the sliding plate 25 is positioned below the wave tooth 24. Elastic teeth 271 matched with the wavy teeth are respectively arranged on two sides of the damping plate 27, the elastic teeth 271 are made of elastic metal sheets, and the elastic teeth 271 can be meshed with the wavy teeth 24.

The damping plate 27 is provided with a through hole at a position corresponding to the threaded hole 22, a pressing plate 273 is further arranged above the damping plate, the pressing plate 273 is also provided with a through hole at a position corresponding to the threaded hole 22, and the damping plate 27 sequentially penetrates through the through holes on the pressing plate and the damping plate through bolts 274 and then is fixed on the connecting seat 21 in a matching manner with the threaded hole 22. Since the connecting base 21 is higher than the upper surface of the transverse plate 71, a gap is left between the lower surface of the damping plate 27 and the upper surface of the transverse plate after the damping plate 27 is connected with the connecting base 21. The sliding plates 25 on the handrail 2 are slidably connected in the gap, and because the distance between the two sliding plates 25 is smaller than the width of the slot 23, the damping plate 27 can clamp the sliding plates of the handrail 2 in the middle after being fixed with the connecting seat 21, that is, the handrail 2 cannot move up and down, and can only be slidably connected to the connecting seat 21 back and forth by the engagement of the wavy teeth 24 and the elastic teeth 271.

In this embodiment, be the inclined plane meshing between elastic tooth 271 and the wave tooth 24, and be interference fit with the crest department of wave tooth, after elastic tooth and wave tooth meshing, promote handrail 2, tooth on the wave tooth 24 promotes elastic tooth and produces elastic deformation, and inside side bend, the wave tooth slides forward, and realize the change of meshing position, thereby realize damping sliding connection, when elastic tooth 31 meshes with wave tooth 12, rocking about handrail board 1 easily, be unfavorable for the front and back slip of handrail board, this embodiment is equipped with guide way 26 on handrail 2, guide way 26 one end and slotted hole 23 one end intercommunication, damping board 27 one end is equipped with width and guide way width assorted guide piece 272, guide piece 272 sliding connection is in guide way 26 for slide the guide effect around handrail 2, be difficult for rocking about to the front and back slip of handrail 2.

Referring to fig. 17 and 18, in the seat device of the present embodiment, a cup holder 28 is provided at a lower portion of a front end of the armrest 2, as shown in fig. 19 and 20, the cup holder 28 includes a holder 81 and a connecting plate 82, a notch is provided at one side of the holder 81, and when the height of the cup is low, the cup can be pushed upward through the notch, so that the cup can be taken out of the cup holder. One end of the connecting plate is fixed on one side of the support body, the upper surface of the other end of the connecting plate is provided with a connecting column 84 with a circular cross section, the top of the connecting column 84 is provided with a first boss 83, the shaft parts of the connecting column 84 and the boss 83 are provided with first pin holes, and the first pin holes penetrate through the boss and the connecting plate; the bottom of the handrail 2 is provided with a groove 28 with a downward opening, the inside of the handrail is provided with a cavity 29, the cavity is communicated with the groove through a second pin hole, the second pin hole is coaxially arranged with the groove 28, and the cross section of the groove 28 is matched with the connecting column 84 in size; be equipped with pin 87 in first, the second pinhole, the pin tip is equipped with the external screw thread, connects nut 88 soon after the saucer 8 passes first, the second pinhole in proper order through pin 87 and links together saucer 8 and handrail 2, and spliced pole 84 rotates and connects in recess 28, and nut 88 is located cavity 29, can guarantee the level and smooth of handrail top.

In the embodiment, a cup holder pressure spring 85 and floating teeth 86 are sleeved on the first boss 83, the floating teeth 86 are circular, a rectangular through hole matched with the first boss 83 is formed in the middle of the floating teeth 86, the pressure spring 85 and the floating teeth 86 are sequentially sleeved on the boss 83, one end of the pressure spring abuts against the connecting column 84, and the other end of the pressure spring abuts against the bottom of the floating teeth 86, so that the floating teeth 86 can slide up and down along the first boss 83 under the action of the pressure spring; the floating teeth 86 are provided with a plurality of teeth extending upwards at the top, the teeth are arranged along the circumferential direction of the floating teeth, the two sides of the teeth are inclined planes, the bottom of the inner side of the groove 28 is provided with a first inner tooth matched with the floating teeth 86, and the floating teeth and the first inner tooth are meshed with each other after the cup stand 8 is connected with the handrail 2.

In the embodiment, the cup holder is in damped rotation through the engagement of the inclined surfaces between the floating teeth 86 and the first inner teeth, when the cup holder is rotated, the first bosses 83 drive the floating teeth 86 to rotate, and the inner teeth push the floating teeth 86 to slide downwards due to the engagement of the floating teeth and the inclined surfaces of the inner teeth; after the teeth of the floating teeth 86 and the first internal teeth are staggered at the highest point, the floating teeth 86 slide upwards under the action of the cup holder pressure spring 85 and are meshed with the first internal teeth again, so that the relative rotation of the floating teeth 86 and the internal teeth is realized, and the direction adjustment of the cup holder 8 is realized. Because the floating teeth 86 are pressed on the first internal teeth by the cup stand pressure spring 85, the elasticity of the pressure spring needs to be overcome when the cup stand 8 is rotated, and the damped rotation of the cup stand 8 is realized.

As shown in fig. 21 and 22, in the seat device of the present embodiment, a plurality of positioning holes 601 are uniformly formed in the front side of the pedal tube 60 along the longitudinal direction, and the leg rest 9 is slidably coupled to the pedal tube 60.

The leg rest 9 comprises a sleeve 91 and support plates 92 symmetrically fixed on both sides of the sleeve 91, and the sleeve 91 is slidably connected to the pedal tube 60. The second locking mechanism includes a second button 94, a fixing plate 95, a leg rest pressing spring 97, and a locking iron piece 96.

As shown in fig. 23 and 24, the leg supporter 9 has a third through hole 93 at the front side of the sleeve 91, a fixing plate 95 is fixed to the sleeve 91 and a second button 94 is fixed to the fixing plate, and the upper portion is hinged to the fixing plate at a hinge point a. An iron sheet groove 951 is formed in the back of the fixing plate, a locking iron sheet 96 is arranged in the iron sheet groove and is hinged with the fixing plate at a hinge point B, a second boss 962 is arranged at one side, close to the second button 94, of the upper end of the locking iron sheet 96, one end of a leg support compression spring 97 is fixed in the iron sheet groove, and the other end of the leg support compression spring is sleeved on the second boss 962; a bump 961 is arranged at one side of the upper end of the locking iron sheet 96, which is far away from the second button 94, the size of the bump is matched with that of the third through hole, the bump 961 can pass through the third through hole 93 and be clamped in the positioning hole 601 under the action of the leg support pressure spring 97, and meanwhile, the lower end of the locking iron sheet 96 can extend out of the iron sheet groove and tightly abut against the inner side of the lower part of the second button; in order to make the iron sheet stretch out from the lower end of the locking iron sheet 96 in this embodiment, the lower end of the locking iron sheet 96 is designed to be bent towards one side of the button, and a positioning groove 941 is arranged at the bottom of the second button 94, so that the lower end of the locking iron sheet 96 can be limited, and the lower end of the locking iron sheet 96 is tightly supported in the positioning groove 941 and slides in the positioning groove.

As shown in fig. 24, in the leg rest mechanism of this embodiment, by pressing the second button 94, the lower end of the locking iron piece 96 is pushed by the lower portion of the second button to move away from the second button, so that the upper end of the locking iron piece 96 compresses the leg rest pressing spring 97 and slides the protrusion 961 out of the positioning hole 601, and at this time, the leg rest mechanism can be slid up and down; when the second button is released, the upper end of the locking iron sheet 96 can move towards one side close to the positioning hole under the action of the leg support pressing spring, and the convex block passes through the third through hole 93 and is clamped in the positioning hole 601, so that the leg support mechanism is locked.

In the embodiment, the second button for controlling the locking and unlocking of the leg support mechanism is positioned in the middle of the leg support 9, so that the leg support mechanism cannot be contacted with the legs of a person during use and is not easy to touch by mistake.

As shown in fig. 25 and 26, in the seat device of the present embodiment, a side rest angle adjusting device for angle adjustment of the side rest 1

The side handrail comprises a floating gear 10, a side handrail pressure spring 204, a fixed gear sleeve 20, a fixed seat 305 and a third button 40, wherein a tooth groove 17 is formed in the inner side of the side handrail 1, and a plurality of side handrail teeth 171 matched with the floating gear 10 are uniformly arranged on the inner side of the tooth groove 17 along the circumferential direction; fixed tooth cover 20 one end is fixed on fixing base 30, and the other end opening is inside to be equipped with a plurality of and floating gear 210 matched with second internal tooth 201 along circumference, and the fixing base is fixed on bedplate 50, and fixed tooth cover 20 opening one end is rotated and is connected at the opening part of tooth's socket 17 to make fixed tooth cover 30 and the inside tooth chamber that floats that forms of tooth's socket 17, side handrail pressure spring 204 all sets up in floating the tooth chamber with floating gear 10, and side handrail pressure spring 204 is located between fixed tooth cover 30 and the floating gear 10, and floating gear 10 both ends respectively with side handrail tooth 171 and the meshing of second internal tooth 201, can't rotate side handrail 1 this moment.

In the embodiment, a button hole 181 is formed in the tooth groove 17, a second button groove 19 is formed in the outer side of the side support plate 1 and corresponds to the tooth groove 17, the second button groove 19 is communicated with the tooth groove 17 through the button hole 181, a third button 40 is slidably connected in the second button groove, a push rod 401 is arranged at one end of the third button 40, the push rod 401 penetrates through the button hole 181 and is tightly abutted to the floating gear 10, a spring plate 402 is covered at the opening of the second button groove and is made of an elastic plastic sheet, the other end of the third button abuts against the inner side of the spring plate 402, the elastic force of the spring plate 402 is smaller than that of the side support plate pressure spring 204, and the third button can be limited in the second button groove.

In this embodiment, the floating gear 10 can slide in the floating tooth cavity, the floating gear 10 and the internal teeth of the fixed tooth sleeve 20 are always in a meshed state, and the two teeth cannot rotate relatively, in a free state, the floating gear 10 can be partially positioned in the tooth grooves 17 under the action of the side support pressure spring 204, so that the floating gear 10 and the side support teeth 171 are also meshed with each other and cannot rotate relatively, and the side support is in a locked state and cannot rotate; when the third button 40 is pressed, the floating gear 10 is pushed by the push rod 401 to slide towards one side of the fixed gear sleeve 20 and separate from the side handrail teeth 171, the side handrail is in an unlocking state, and the fixed gear sleeve 20 is rotationally connected with the tooth grooves 17, so that the side handrail 1 can be rotated to perform angle adjustment; when the third button 40 is released, the side rest pressure spring 204 pushes the floating gear 10 to slide toward one side of the tooth slot 17 and engage with the side rest teeth 171, so that the side rest 1 is locked again.

In the embodiment, the shaft part of the fixed gear sleeve 20 is provided with a connecting rod 202, the cross section of the connecting rod is rectangular, the end part of the connecting rod is provided with a third boss 203 with a circular cross section, the shaft part of the floating gear 10 is provided with a gear hole 101, the cross section of the gear hole is matched with that of the connecting rod, a circular groove 18 is arranged inside the tooth socket 17, one end of the connecting rod 202 sequentially penetrates through a side support plate pressure spring 204 and the gear hole 101, and the third boss 203 is abutted against the circular groove 18 and is rotatably connected with the circular groove; the axis of the connecting rod 202 and the axis of the third boss 203 are provided with a first pin hole, the side handrail 11 is provided with a corresponding second pin hole in the circular groove, the second pin hole communicates the tooth groove 17 with the second button groove 19, and the fixed tooth sleeve 20 passes through the first and second pin holes in sequence through a pin to be rotatably connected to the side handrail.

One side of the floating gear 10 is provided with an annular spring groove 102, and one end of the side support plate pressure spring 204 is positioned in the spring groove 102, so that the side support plate pressure spring 204 and the floating gear 10 can be prevented from being dislocated.

Referring to fig. 27, 28 and 29, in the seat device of the present embodiment, the side buttress teeth 171 are inclined surfaces inclined toward the floating gear on one side and right-angled surfaces on the other side, and correspondingly, the teeth of the floating gear 10 are matched with the side buttress teeth 171 at the meshing position with the side buttress teeth 171; when the side handrail 1 is rotated upwards, the meshing surface of the side handrail teeth 171 and the floating gear 10 is an inclined surface, at this time, the tangential force generated by rotating the side handrail pushes the floating gear 10 to slide towards one side of the fixed gear sleeve 20 through the engagement of the inclined surface until the side handrail teeth 171 and the floating gear 10 are separated, the side handrail teeth 171 and the floating gear 10 rotate by the angle of one tooth relatively, so that a plurality of gears for rotating the side handrail are formed, and the third button 40 does not need to be pressed when the side handrail 1 is rotated upwards. When the side is held up board 1 to the downward rotation, the meshing face of side board tooth 171 and floating gear 10 is the right angle face, still is in the locking state between side board tooth 171 and the floating gear 10, and side board 1 can't rotate, can realize holding up board 1 with the side and adjust to different angles, because side board 1 holds up and receives decurrent pressure when supporting the arm, rotates the side board downwards promptly, and the side board is in the locking state, and the structure of this embodiment can be held up the board with the side and adjust and lock in different angles.

The seat device of this embodiment has multiple regulatory function such as adjustable handrail, side handrail, saucer and leg rest, and application scope is wide.

The technical solutions of the present invention are not limited to the above embodiments, and all technical solutions obtained by using equivalent substitution modes fall within the scope of the present invention.

Claims

1. A multifunction seat apparatus for a wheelchair, characterized in that: the foldable table comprises side supporting plates, T-shaped plates, handrails, a table plate, a seat plate, leg supports, pedals and pedal pipes, wherein angle adjusting devices are arranged at one ends of the two side supporting plates and hinged to the two sides of the seat plate through the angle adjusting devices; the two table plates are respectively a first table plate and a second table plate, the first table plate and the second table plate are respectively connected in the first slots of the two side supporting plates in a sliding mode, one ends of the first table plate and the second table plate are respectively provided with a concave groove and a convex groove which are matched with each other, and the other ends of the first table plate and the second table plate can be inserted into the second slots; the pedal pipe is fixedly connected between the seat board and the pedal, the leg support is connected to the pedal pipe in a sliding mode, and the leg support is provided with a second locking mechanism.

2. A multifunction seat arrangement for a wheelchair as claimed in claim 1, wherein: an ejection pressure spring is arranged in the first slot, one end of the ejection pressure spring is fixed in the first slot, and the other end of the ejection pressure spring can tightly abut against one end of the table plate; the utility model discloses a table button, including the board, the board is held up to side is equipped with the button groove at first slot opening part, the button inslot is equipped with table button and button pressure spring, button pressure spring one end is fixed at the button inslot, and the other end is fixed at table button one end, table button sliding connection is at the button inslot, but the button groove is stretched out to the other end, the table other end can tightly support the one side that stretches out button groove part at the table button.

3. The multifunction seat device for wheelchair as claimed in claim 2, wherein: the table board is characterized in that a blind hole is formed in the second slot, a stop block and a stop block pressure spring are arranged in the blind hole, one end of the stop block pressure spring is fixed in the blind hole, the other end of the stop block pressure spring is fixed on the stop block, the stop block is connected in the second blind hole in a sliding mode, one end of the stop block pressure spring can extend out of the second blind hole, and a groove is formed in the position, corresponding.

4. A multifunction seat arrangement for a wheelchair as claimed in claim 1, wherein: first locking mechanism includes gag lever post and handrail pressure spring, jack one side inner wall is equipped with a plurality of constant head tanks, the riser is hollow structure, and one side bottom is equipped with first through-hole, and the opposite side top is equipped with the second through-hole, and the gag lever post is located inside the riser, the gag lever post middle part is articulated with the riser, and first through-hole can be stretched out and support the constant head tank in the bottom, and the handrail pressure spring sets up in gag lever post top one side, and gag lever post top opposite side articulates there is the handrail button, handrail pressure spring one end is connected with the riser, and the other end is connected with the gag lever post, the handrail button can stretch out.

5. A multifunction seat arrangement for a wheelchair as claimed in claim 1, wherein: the handrail is provided with a groove hole, two inner sides of the groove hole are provided with wave teeth which are oppositely arranged, the transverse plate is provided with a connecting seat, a damping plate is fixed on the connecting seat, two sides of the damping plate are provided with elastic teeth which are matched with the wave teeth, and the handrail is connected to the connecting seat in a sliding mode through the meshing of the wave teeth and the elastic teeth.

6. The multifunction seat device for wheelchair as claimed in claim 5, wherein: a gap is formed between the lower surface of the damping plate and the upper surface of the connecting seat, sliding plates are arranged on the two inner sides of the slotted hole and located below the wavy teeth, and the two sliding plates are connected in the gap between the damping plate and the connecting seat in a sliding mode.

7. A multifunction seat arrangement for a wheelchair as claimed in claim 1, wherein: the handrail front end is equipped with the saucer, the saucer top is equipped with the boss of transversal personally submitting the rectangle, sliding connection has saucer pressure spring and unsteady tooth on the boss, saucer pressure spring one end tightly supports on the saucer, and the other end tightly supports in unsteady tooth bottom, unsteady tooth top is equipped with the tooth, the handrail bottom is equipped with the first internal tooth with unsteady tooth matched with, boss axis department is equipped with first pinhole, and the handrail is equipped with the second pinhole in corresponding the position, the saucer passes first, second pinhole connection on the handrail through the pin to rotate with the handrail and be connected.

8. A multifunction seat arrangement for a wheelchair as claimed in claim 1, wherein: second locking mechanism includes that the leg holds in the palm button, fixed plate, leg support pressure spring and locking iron sheet, the leg holds in the palm including the sleeve pipe and fixes the layer board in the sleeve pipe both sides, and the leg holds in the palm to establish on the footboard pipe through the sleeve pipe cover to with footboard pipe sliding connection, be equipped with the third through-hole on the sleeve pipe, the footboard pipe is equipped with a plurality of spacing holes, the fixed plate is fixed on the sleeve pipe, the leg holds in the palm the button and is located fixed plate front side and upper portion and articulates on the fixed plate, the locking iron sheet is located fixed plate rear side and middle part and articulates on the fixed plate, leg support pressure spring one end is fixed at the fixed plate rear side, and the other end tightly supports at locking iron sheet top, and locking iron sheet top can stretch out the third through-hole and tightly support in spacing downthehole under the effect of leg support pressure spring, and locking iron sheet bottom can tightly support.

9. A multifunction seat arrangement for a wheelchair as claimed in claim 1, wherein: the angle adjusting device comprises a floating gear, a side supporting plate pressure spring, a fixed gear sleeve, a fixed seat and a side supporting plate button, wherein a tooth groove is formed in the inner side of the side supporting plate, side supporting plate teeth matched with the floating gear are arranged in the tooth groove, one end of the fixed gear sleeve is fixed on the fixed seat, the other end of the fixed gear sleeve is open, the fixed seat is fixed on the seat plate, second internal teeth matched with the floating gear are arranged in the fixed gear sleeve, the fixed gear sleeve is covered on the tooth groove and is rotationally connected with the tooth groove, a floating tooth cavity is formed between the fixed gear sleeve and the tooth groove, the pressure spring and the floating gear are both arranged in the floating tooth cavity, the pressure spring is positioned between the fixed gear sleeve and the floating gear, two ends of the floating gear are respectively meshed with the side supporting plate teeth and the second internal teeth, a through hole is formed in the tooth groove, the button is arranged on the outer side supporting plate, one end of the button penetrates through the through hole and, and when the button is released, the pressure spring can push the floating gear to slide towards one side of the tooth groove and be meshed with the side supporting plate teeth.

10. A multifunction seat arrangement for a wheelchair as claimed in claim 9, wherein: the fixed gear sleeve shaft part is provided with a connecting rod, the connecting rod shaft part is provided with a third pin hole, the floating gear shaft part is provided with a gear hole, a fourth pin hole is formed in the tooth socket, one end of the connecting rod penetrates through the pressure spring and the gear hole in sequence and then is supported in the tooth socket, and the fixed gear sleeve penetrates through the third pin hole and the fourth pin hole in sequence and is connected to the tooth socket through a pin.