CN203539570U

CN203539570U - Wheelchair foot frame structure

Info

Publication number: CN203539570U
Application number: CN201320620277.5U
Authority: CN
Inventors: 廖学金
Original assignee: HL Corp Shenzhen Co Ltd
Current assignee: HL Corp Shenzhen Co Ltd
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2014-04-16
Anticipated expiration: 2023-09-23

Abstract

The utility model relates to a wheelchair foot frame structure, which consists of a leg leaning element and a rotary seat, wherein the leg leaning element can be pivoted on a vertical pipe of a wheelchair frame, the bottom end of the leg leaning element is pivoted with a pedal plate capable of being relatively downwards and flatly placed or upwards folded and stored, the leg leaning element can be arranged on the rotary seat in a penetrating way, one end of the rotary seat can be pasted and butted against the outer wall of the vertical pipe, the vertical pipe is provided with a fixing block corresponding to the rotary seat in a locked way, a spanner with a pin rod is arranged on the rotary seat, the spanner can actuate the pin rod to be selectively inserted and clamped on the fixing block, the foot frame structure can drive the pin rod by utilizing the spanner arranged on the rotary seat to realize the positioning or release relative to the fixing block of the vertical pipe, and the foot frame structure can outwards pivot according to requirements, so the relative width of the foot frame structures at two sides is increased, the goal that users can conveniently go in or out of a wheelchair is reached, when the storage is needed, each foot frame structure can be pulled away from the vertical pipe, the goal of dismounting and separating the foot frame structures can be reached, the storage space of the wheelchair is effectively reduced, and the practicability is greatly improved.

Description

Wheeled chair foot frame structure

Technical field

This utility model relates to a kind of Wheeled chair foot frame structure, is mainly used in the technical field of wheelchair.

Background technology

Wheelchair is a kind of special in the old and the weak, the invalid traffic aid of taking, in its design, mainly allow occupant feel comfortably cool, safe and easy to operate.Existing wheelchair is mainly configured in front and back ends both sides, chair frame below and is arranged with the large push boat in footpath and a guide wheel for path, make both sides, wheelchair main body front respectively solid welding have the foot rest of a tool pedal, while riding on wheelchair for user, its foot can be positioned on the pedal of foot rest, Shi Qi foot built on stilts, there is the effect that supports user foot, be beneficial to advancing of wheelchair.

Traditional foot rest is welded in chair frame with a body, and this body is oblique to downward-extension, pedal is hubbed at this body bottom, make respectively this pedal horizontal or upwards fold relatively downwards, during use, first the pedal of foot rest is upwards turned up, user can be sat smoothly in the chair frame that is placed in wheelchair, again pedal is put down to horizontal afterwards, for user foot place against.

But, because the body of its foot rest is fixedly arranged in chair frame, and the pedal of bottom also needs for supporting foot's weight, therefore under the considering of load bearing stength, the length distance that its foot rest stretches out is forward limited, so, cause user foot cannot obtain effective stretching, extension, especially the taller and bigger user misery especially of stature.For improving above-mentioned puzzlement, once the length of the length distance that foot rest is extended forward design wants to try to achieve comfortableness, will increase user and sit distance and the difficulty into chair frame because width between the foot rest of both sides is slightly less than chair frame width conventionally, cause the inconvenience of user turnover, ought run into what is more the user that stature is more fat or action is extremely inconvenient, even if foot rest does not extend forward, it also can have influence on the turnover of user, and after its development length is elongated, the relative arm of force is also elongated, the junction of this foot rest is because of stressed easily bending, fracture, have influence on the safety of use, therefore, existing Wheeled chair foot frame, because of the problem in design, causes it have impact turnover convenience and take the phenomenons such as uncomfortable, cannot meet the demand of actual use.

Utility model content

Technical problem to be solved in the utility model is: a kind of Wheeled chair foot frame structure is provided, its capable of regulating changes the width of Wheeled chair foot frame, with person easy to use, pass in and out wheelchair, and promoted the comfortableness that user step stretches, can be convenient in addition dismounting, to save the space of storage, the deficiencies in the prior art have been overcome.

For solving the problems of the technologies described above, this utility model adopts following technical scheme: a kind of Wheeled chair foot frame structure, this wheelchair mainly has one for the chair frame of taking advantage of seat, and front, chair frame both sides is arranged with a vertical tube, both sides vertical tube can be respectively for assembling one foot rest structure, respectively this foot rest structure includes a lower limb by part and a rotating seat, this lower limb can be hubbed on the vertical tube of chair frame by part, lower limb has the insert axostylus axostyle of pivot relative to vertical tube by part epimere, and lower limb is pivoted with one by part bottom can relatively downward horizontal or the pedal that upwards folds, this rotating seat has a perforation placing by part for lower limb, rotating seat stage casing inner face is formed with a mounting groove, rotating seat has the axis hole of a cross connection mounting groove in below, mounting groove inner face is formed with a spiral prominence wheel face in axis hole side face, in mounting groove, be provided with a spanner, this spanner bottom has the axis hole of a corresponding axis hole, the end face of the corresponding mounting groove spiral prominence of spanner wheel face is formed with a concavo-convex relative spiral prominence wheel face in axis hole side face, between the axis hole of rotating seat and spanner, be equipped with a pin rod, the support between head and rotating seat of this pin rod has an elastic component, this pin rod passes spanner one end button and is provided with a fastener, vertical tube is locked respectively and is provided with a fixed block in corresponding rotation seat place, on this fixed block, have one and insert the pin-and-hole of pulling for rotating seat pin rod selectivity.

Described lower limb is formed by an outer tube and inner tube serial connection by part, inner side, the corresponding inner tube of its middle external tube one end is formed with at least one perforation, and inner tube bottom can be pivoted for pedal, inner tube perisporium has the flat face that supports of one corresponding outer tube perforation, rotating seat has class's nut of corresponding outer tube perforation, to utilize forcing piece lock to compel the flat face that supports of inner tube, make inner tube flexible, the location of outer tube relatively, for the height of adjusting pedal.

Described lower limb is by being provided with a pipe close in part, and axostylus axostyle inside can be for placing a bolt, and on pipe close, has a nut of pulling for bolt lock.

The other end of the corresponding perforation of described rotating seat has an arrival slot piece that can stick in vertical tube outer wall.

Described rotating seat has the arc guide groove of an indent in arrival slot piece bottom surface, fixed block item mask has the arc guide rail of a corresponding rotating seat arc guide groove.

In the arc guide groove of described rotating seat, be provided with a spacing projection, the arc guide rail central authorities of fixed block have the limited impression of a corresponding limit convex post, make rotating seat fixed block pivotable or location relatively.

Described rotating seat is formed with the arc guide face of a recess, and fixed block has the convex shape arc guide face of a corresponding rotating seat arc guide face, makes to rotate more smooth and easy.

The beneficial effects of the utility model are: by utilizing the spanner on rotating seat to drive pin rod, with fixed block location or the release of relative vertical tube, so make foot rest structure outside pivotable on demand, and the relative width of increasing two side legs shelf structure, reach the object of being convenient to user turnover wheelchair, and when having storage demand, further each this foot rest structure can be detached to vertical tube, can reach the object that dismounting separates foot rest structure, can effectively save the accommodation space of wheelchair, significantly promote its practicality, simultaneously because foot rest structure can obtain effective support, foot rest structure can be extended forward, make user foot when Cheng Zuo be stretched, promote its comfortableness.

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Accompanying drawing explanation

Fig. 1 is the three-dimensional appearance schematic diagram of this utility model wheelchair.

Fig. 2 is the three-dimensional appearance schematic diagram of this utility model Wheeled chair foot frame structure.

Fig. 3 is the perspective exploded view of this utility model Wheeled chair foot frame structure.

Fig. 4 is the generalized section of this utility model Wheeled chair foot frame structure.

Generalized section when Fig. 5 is the action of this utility model Wheeled chair foot frame structure.

Turnover action schematic diagram when Fig. 6 is the use of this utility model Wheeled chair foot frame structure.

Dismounting action schematic diagram when Fig. 7 is the use of this utility model Wheeled chair foot frame structure.

The specific embodiment

This creation Wheeled chair foot frame structure is as Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, this wheelchair mainly has one for the chair frame (10) of taking advantage of seat, and before chair frame (10) down either side, rear end is arranged with the push boat (11) in a large footpath and the guide wheel (12) of a path, chair frame (10) is arranged with a vertical tube (15) in two side guide wheels (12) top, and respectively this vertical tube (15) top has respectively the jack (150) of opening upwards, moreover both sides vertical tube (15) can be respectively for assembling one foot rest structure, and respectively this foot rest structure can be inserted pivot by one and can support in the rotating seat (30) of vertical tube (15) wall by part (20) and in the lower limb of vertical tube (15) and formed, this lower limb can be hubbed on the corresponding vertical tube (15) of chair frame (10) by part (20), this lower limb can be to one pipe fitting or the multistage pipe fitting serial connection of downward-extension and forms by part (20), and lower limb by part (20) bottom and be pivoted with one can be relatively horizontal or the pedal (28) that upwards folds downwards, for user foot, trample, make the user foot can built on stilts, be beneficial to advancing of wheelchair, and the lower limb of this creation is formed by an outer tube (21) and an inner tube (25) serial connection by part (20), inner side, the corresponding inner tube of its middle external tube (21) (25) one end is formed with at least one perforation (22), and outer tube (21) top has one can insert pivot downwards in the axostylus axostyle (23) of aforementioned vertical tube (15) jack (150), this axostylus axostyle (23) inside can be for placing a bolt (230), and in outer tube (21), be provided with a pipe close (24), and have one on pipe close (24), for aforementioned bolt (230), lock the nut (231) of pulling, make axostylus axostyle (23) can coordinate pipe close (24) to be locked in outside outer tube (21), and for relatively inserting pivot in vertical tube (15) jack (150), inner tube (25) can be plugged in outer tube (21), and inner tube (25) bottom can be pivoted for aforementioned pedal (28), moreover inner tube (25) perisporium has the flat face (26) that supports of one corresponding outer tube (21) perforation (22), for utilizing forcing piece (27) lock after passing outer tube (21) perforation (22), compel the flat face (26) that supports of inner tube (25), outer tube (21) is flexible relatively to make inner tube (25), location, further for the height that regulates pedal (28), described rotating seat (30) can place by part (20) for lower limb, this rotating seat (30) other end also can stick in aforementioned vertical tube (15) outer wall, and vertical tube (15) pivotable or location relatively, this rotating seat (30) has a perforation (31) placing by part (20) outer tube (21) for aforementioned lower limb, on rotating seat (30), there is the class's nut (310) that is communicated with this perforation (31), forcing piece (27) screw lock for aforementioned lower limb by part (20), in order to lower limb is pulled on rotating seat (30) by part (20) lock, and this lower limb of alternative packing is by the inner tube (25) of part (20), to regulate lower limb by the pedal (28) of part (20) highly, moreover rotating seat (30) other end has one and can stick in the arrival slot piece (32) of vertical tube (15) outer wall, and rotating seat (30) has the arc guide groove (320) of an indent in arrival slot piece (32) bottom surface, in arc guide groove (320) and there is a spacing projection (321), rotating seat (30) stage casing inner face is formed with a mounting groove (33), and this rotating seat (30) has the axis hole (330) of a cross connection mounting groove (33) in below, and mounting groove (33) inner face is formed with a spiral prominence wheel face (331) in axis hole (330) side face, the peak of this spiral prominence wheel face (331) can be positioned at lower edge, rotating seat (30) is formed with the arc guide face (332) of a recess in arrival slot piece (32) below, moreover in mounting groove (33), be provided with a spanner (34), this spanner (34) bottom has the axis hole (340) in a corresponding aforementioned axis hole (330), and the end face of the corresponding mounting groove of spanner (34) (33) spiral prominence wheel face (331) is formed with a relative spiral prominence wheel face (341) in axis hole (340) side face, the minimum point of the corresponding said spiral cam surface of peak (331) of this spiral prominence wheel face (341), for when spanner (34) rotates to a side, can make spiral prominence wheel face (331) peak of the corresponding mounting groove of spiral prominence wheel face (341) peak (33) of spanner (34), make spanner (34) can produce the effect of giving up the throne, moreover rotating seat (30) and spanner (34) axis hole (330, 340) between, be equipped with a pin rod (35), this pin rod (35) is shored and is had an elastic component (350) between head and rotating seat (30), and pin rod (35) passes spanner (34) one end button and is provided with a fastener (351), make pin rod (35) can produce the prestressing of automatically stretching out forward, the vertical tube (15) of aforementioned chair frame (10) locates to utilize respectively a locking part (360) lock to be provided with a fixed block (36) in corresponding rotation seat (30), on this fixed block (36), there is the pin-and-hole (361) of corresponding rotating seat (30) pin rod (35), for pin rod (35) selectivity, insert and pull, and fixed block (36) has the convex shape arc guide face (362) of corresponding aforementioned rotating seat (30) arc guide face (332), moreover fixed block (36) end face has the arc guide rail (37) of corresponding rotating seat (30) arc guide groove (320), this arc guide rail (37) central authorities have the limited impression (370) of spacing projection (321) in a corresponding arc guide groove (320), make rotating seat (30) fixed block (36) pivotable or location relatively, thereby group formation one practicality is good and the Wheeled chair foot frame structure of easy operating.

See through above-mentioned structural design, this creation Wheeled chair foot frame structure is when reality is used, as shown in Figure 1 and Figure 4, under normal operating condition, respectively this foot rest structure is inserted on the upper corresponding vertical tube (15) of chair frame (10) by outer tube (21) axostylus axostyle (23) of part (20) with lower limb, and make the arrival slot piece (32) of rotating seat (30) install in the outer wall of corresponding vertical tube (15), because vertical tube (15) is provided with a fixed block (36), pin rod (35) on rotating seat (30) is because the spiral prominence wheel face (341) of spanner (34) and the spiral prominence wheel face (331) of rotating seat (30) mounting groove (33) are concavo-convex relative shape, make pin rod (35) be subject to elastic component (350) reply the effect of prestressing and clip in the pin-and-hole (361) of this fixed block (36), make foot rest structure be located, and forcing piece (27) selectivity that user further can see through on rotating seat (30) discharges the outer tube (21) and inner tube (25) of lower limb by part (20), supply the pedal (28) of adjustment inner tube (25) bottom highly, the comfort level of taking to promote user.

When user improves turnover convenience and dismounting foot rest structure because of wish, as Fig. 4, Fig. 5, shown in Fig. 6 and Fig. 7, in operation, user pulls the spanner (34) on rotating seat (30) to off-position, make the spiral prominence wheel face (341) of spanner (34) and the spiral prominence wheel face (331) of rotating seat (30) mounting groove (33) be the relative shape of convexo-convex, make spanner (34) on rotating seat (30) relatively away from fixed block (36), and then Timing Belt untie-sell bar (35) compression elastic piece (350), and head exits the pin-and-hole (361) (as shown in Figure 5) of fixed block (36), so can make arc guide groove (320) relatively arc guide rail (37) the outwards pivotable of fixed block (36) of foot rest structure with rotating seat (30), and the relative width (as shown in Figure 6) of increasing two side legs shelf structure, reach the object of being convenient to user turnover wheelchair.When having storage demand, further the lower limb of each this foot rest structure can be detached to vertical tube (15) by part (20) axostylus axostyle (23), can reach the object (as shown in Figure 7) that dismounting separates foot rest structure, can further facilitate user turnover wheelchair, also can save the accommodation space of wheelchair, significantly promote its practicality, promoted the surcharge of product, improved its economic benefit.

Claims

1. a Wheeled chair foot frame structure, this wheelchair mainly has one for the chair frame of taking advantage of seat, and front, chair frame both sides is arranged with a vertical tube, both sides vertical tube can be respectively for assembling one foot rest structure, respectively this foot rest structure includes a lower limb by part and a rotating seat, it is characterized in that: this lower limb can be hubbed on the vertical tube of chair frame by part, lower limb has an axostylus axostyle of inserting pivot relative to vertical tube by part epimere, and lower limb is pivoted with one by part bottom can relatively downward horizontal or the pedal that upwards folds, this rotating seat has a perforation placing by part for lower limb, rotating seat stage casing inner face is formed with a mounting groove, rotating seat has the axis hole of a cross connection mounting groove in below, mounting groove inner face is formed with a spiral prominence wheel face in axis hole side face, in mounting groove, be provided with a spanner, this spanner bottom has the axis hole of a corresponding axis hole, the end face of the corresponding mounting groove spiral prominence of spanner wheel face is formed with a concavo-convex relative spiral prominence wheel face in axis hole side face, between the axis hole of rotating seat and spanner, be equipped with a pin rod, this pin rod is shored between head and rotating seat an elastic component, this pin rod passes spanner one end button and is provided with a fastener, vertical tube is locked respectively and is provided with a fixed block in corresponding rotation seat place, on this fixed block, have one and insert the pin-and-hole of pulling for rotating seat pin rod selectivity.

2. Wheeled chair foot frame structure as claimed in claim 1, it is characterized in that: this lower limb is formed by an outer tube and inner tube serial connection by part, inner side, the corresponding inner tube of its middle external tube one end is formed with at least one perforation, and inner tube bottom can be pivoted for pedal, inner tube perisporium has the flat face that supports of one corresponding outer tube perforation, and rotating seat has class's nut of corresponding outer tube perforation, to utilize forcing piece lock to compel the flat face that supports of inner tube, make inner tube flexible, the location of outer tube relatively, for the height that regulates pedal.

3. Wheeled chair foot frame structure as claimed in claim 1, is characterized in that: this lower limb is by being provided with a pipe close in part, and axostylus axostyle inside can be for placing a bolt, and on pipe close, has a nut of pulling for bolt lock.

4. Wheeled chair foot frame structure as claimed in claim 1, is characterized in that: the other end of the corresponding perforation of this rotating seat has an arrival slot piece that can stick in vertical tube outer wall.

5. Wheeled chair foot frame structure as claimed in claim 4, is characterized in that: this rotating seat has the arc guide groove of an indent in arrival slot piece bottom surface, fixed block end face has the arc guide rail of a corresponding rotating seat arc guide groove.

6. Wheeled chair foot frame structure as claimed in claim 5, is characterized in that: in the arc guide groove of this rotating seat, be provided with a spacing projection, the arc guide rail central authorities of fixed block have the limited impression of a corresponding limit convex post, makes rotating seat fixed block pivotable or location relatively.

7. Wheeled chair foot frame structure as claimed in claim 1, is characterized in that: this rotating seat is formed with the arc guide face of a recess, and fixed block has the convex shape arc guide face of a corresponding rotating seat arc guide face, makes to rotate more smooth and easy.