CN210355145U

CN210355145U - Folding towing device for wheelchair

Info

Publication number: CN210355145U
Application number: CN201921065805.9U
Authority: CN
Inventors: 毛宽阔
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-04-21
Anticipated expiration: 2029-07-09

Abstract

The utility model provides a wheelchair is with folding linkage that drags, this wheelchair is with folding linkage that drags includes the base, the front end of base is provided with the link, folding chair has still been arranged on the base, folding chair includes two sets of X-shaped articulated crossbars of arranging, two sets of crossbars are along the fore-and-aft direction interval arrangement of perpendicular to base, still be connected with between the bottom of two sets of crossbars with the rear end articulated hinge bar of base and with hinge bar parallel arrangement's bracing piece, flexible seat has still been arranged between the top of crossbar, still arrange the restriction piece that is used for injecing the bracing piece on the base, it is equipped with the back still to rotate on the crossbar, the link is used for rotating the assembly with the wheelchair, the handle that is used for with the wheelchair is fixed when the base rotates has still been arranged to the rear end of. When the flexible chair surface is folded, the base can be rotated by the connecting frame to be folded into a plane, the folding towing device is fixed on the wheelchair by the handle, the space occupied by the folding towing device is reduced, and the folding towing device is convenient for accompanying personnel to carry when going out.

Description

Folding towing device for wheelchair

Technical Field

The utility model belongs to the technical field of the wheelchair accessory, concretely relates to folding linkage that drags for wheelchair.

Background

The wheelchair is mainly used for rehabilitation, turnover transportation, treatment and outgoing activities of wounded persons, patients and disabled persons at home, meets the requirements of physically disabled persons and persons with mobility disabilities for riding instead of walk, facilitates the family members to move and take care of the patients, and enables the patients to perform physical exercise and participate in social activities by means of the wheelchair. However, the patient often needs an attendant when taking the wheelchair, and the attendant needs to be kept in a standing state for a long time in the accompanying process, so that the burden of the attendant is increased.

The chinese utility model patent that the bulletin number of authorizing is CN 206239619U, and the bulletin date of authorizing is 2017.06.13 discloses a pull seat structure of electronic wheelchair, should pull the seat structure and include electronic wheelchair and be used for controlling the wheelchair controller that electronic wheelchair went, install the detachable back seat dolly behind one's back of electronic wheelchair, the rear side of electronic wheelchair is equipped with the horizontal pole, and the front side of back seat dolly is equipped with downside open-ended and is used for the U-shaped spare on the horizontal pole.

Foretell electric wheelchair's pull seat structure when using, pulls the seat and passes through U-shaped spare and horizontal pole releasable connection, can be with pulling the seat connection on electric wheelchair when needs, and the accompanying person can take electric wheelchair, has alleviateed accompanying person's burden. But the volume of the structure of the trailer seat is large, and the accompanying person is inconvenient to carry when going out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding device of pulling for wheelchair aims at solving the pulling seat structure volume among the prior art great, carries inconvenient problem when people go out.

In order to achieve the above object, the utility model relates to a folding hitch device for wheelchair adopts's technical scheme is: including the base, the bottom of base is provided with the universal wheel, and the front end of base is provided with the link that is used for being connected with the wheelchair, has still arranged the folding chair on the base, the folding chair includes two sets of X-shaped articulated crossbars of arranging, and two sets of crossbars are arranged along the fore-and-aft direction interval of perpendicular to base, still be connected with between the bottom of two sets of crossbars with the rear end articulated hinge bar of base and the bracing piece with hinge bar parallel arrangement, still arranged flexible chair face between the top of crossbar, still arranged on the base and be used for injecing the bracing piece so that the open limited piece of flexible chair face, still rotate on the crossbar and be equipped with the back, the link is used for rotating the assembly with the wheelchair, the handle that is used for with the wheelchair is fixed when the base rotates is still arranged to the rear end of base.

Preferably, the limiting member includes a limiting block disposed on the base, and a rear end of the limiting block is provided with an inclined plate inclined upward.

Preferably, the limiting piece further comprises arc plates symmetrically arranged on two sides of the limiting block along the front-back direction perpendicular to the base, and the arc plates are provided with backward openings.

Preferably, the link is including fixing the sleeve pipe and the cartridge of base bottom are in telescopic link in the sleeve pipe, telescopic link total two and symmetrical arrangement are at sheathed tube both ends, are provided with the setting element that is used for fixing a position the telescopic link on the sleeve pipe, the tip of telescopic link be provided with be used for with wheelchair fixed connection's connecting piece.

Preferably, the sleeve is provided with a jackscrew assembled along the radial direction of the sleeve, and the positioning piece is formed by the jackscrew.

Preferably, the connecting member is a U-shaped clip.

Preferably, the backrest comprises a base rotatably assembled on the cross rod, the base is of a tube structure, a pull rod is inserted into the base, and a fixing piece for fixing the pull rod is arranged on the base.

Preferably, the fixing member is a jackscrew threadedly fitted on the base.

Preferably, the flexible chair seat comprises two fixed rods connected between the cross rods, and a flexible supporting belt is connected between the two fixed rods.

The utility model has the advantages that: the utility model discloses a folding linkage that drags for wheelchair is through setting up folding seat on the base, when two sets of crossbars rotate, the bracing piece can support on the limiting piece so that flexible seat opens or folding, can supply the attendant to have a rest when flexible seat opens, when flexible seat is folding, base accessible link rotates and folds into the plane, utilize the handle to fix this folding linkage that drags on the wheelchair, the space that this folding linkage that drags occupy has been reduced, can drive this folding linkage that drags when the wheelchair removes and remove simultaneously, the attendant of being convenient for carries when the trip.

The utility model discloses the beneficial effect who still has is: the limiting block can increase the structural strength of the limiting piece; the arc-shaped plate can increase the contact area between the limiting piece and the supporting rod, and the supporting is stable; the telescopic rod of the connecting frame can slide in the sleeve to adjust the width of the connecting frame, so that the wheelchair connecting frame is suitable for wheelchairs of different specifications; the pull rod cartridge of back is in the base, can pull out the crowd of back adaptation co-altitude not, can also insert the space that reduces the back and occupy in the base, convenient to carry.

Drawings

Fig. 1 is a schematic perspective view of a folding trailer for a wheelchair according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of another perspective of a foldable towing device for a wheelchair according to an embodiment of the present invention;

fig. 3 is a front view of an embodiment of a folding hitch of the present invention for a wheelchair.

In the figure, 1, a base; 11. a limiting block; 12. an inclined plate; 13. an arc-shaped plate; 14. a universal wheel; 2. a connecting frame; 21. a sleeve; 22. a telescopic rod; 3. a folding chair; 31. a cross bar; 32. a support bar; 33. a hinged lever; 34. fixing the rod; 35. a flexible support strap; 4. carrying out top thread; 5. clamping a hoop; 6. a handle; 7. a backrest; 71. a base; 72. a pull rod.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

The utility model discloses a concrete embodiment of a folding pulling device for wheelchair, as shown in fig. 1, this folding pulling device for wheelchair includes base 1, be used for the link 2 of being connected with the wheelchair and arrange folding chair 3 on base 1.

The base 1 is of a rectangular structure as a whole, the length direction of the base 1 is defined as the front-back direction, the front-back direction of the base 1 is the same as the front-back direction of the wheelchair, the width direction of the base 1 is defined as the left-right direction, and the left-right direction is perpendicular to the front-back direction. The bottom fixed arrangement of base 1 has universal wheel 14, and universal wheel 14 is total four, and four universal wheels 14 arrange four corners departments of base 1.

The link 2 is disposed at the front end of the base 1, and the link 2 is fixed at the bottom of the base 1. The link 2 includes the sleeve pipe 21 with base 1 welded fastening, and sleeve pipe 21 extends along left right direction, and the both ends of sleeve pipe 21 are all inserted and are had telescopic link 22, and two telescopic link 22 symmetrical arrangement are at the both ends of sleeve pipe 21. Both ends of the axial direction of the sleeve 21 are respectively provided with a jackscrew 4 in a threaded manner, the jackscrew 4 is assembled along the radial direction of the sleeve 21, the jackscrew 4 is used for positioning the telescopic rod 22, and the jackscrew 4 forms a positioning piece for positioning the telescopic rod 22. The sliding of the telescopic rod 22 in the sleeve 21 can be used to adjust the width of the connecting frame 2, so as to be suitable for wheelchairs of different specifications.

Be connected with the clamp 5 of U-shaped on two telescopic links 22 respectively, the tip screw thread of clamp 5 is equipped with the nut, and telescopic link 22 passes through clamp 5 and the horizontal pole fixed connection on the wheelchair, and link 2 rotates the assembly through clamp 5 and wheelchair, and clamp 5 forms the connecting piece that is used for with wheelchair fixed connection. Base 1's rear end is the fixed handle 6 that is provided with still, can laminate at base 1's top after folding chair 3 is folding, this folding device of trailing can fold into planar structure, base 1 rotates around the horizontal pole of wheelchair, handle 6 rotates can cooperate with the couple on the wheelchair when the rear end of wheelchair, thereby make handle 6 fix on the wheelchair, the space that this folding device of trailing occupy has been reduced, can drive this folding device of trailing and remove simultaneously when the wheelchair removes, the attendant of being convenient for carries when going on a journey.

A folding chair 3 is arranged at the rear end of the base 1. The folding chair 3 comprises two groups of cross rods 31 which are arranged in an X shape in a crossing way, the cross rods 31 are hinged with each other, and the two groups of cross rods 31 are arranged at intervals along the left and right direction of the base 1. A hinge rod 33 hinged with the rear end of the base 1 and a support rod 32 arranged in parallel with the hinge rod 33 are further connected between the bottom ends of the cross rods 31, and the hinge rod 33 and the support rod 32 are arranged at intervals along the front-rear direction. Two sleeves are arranged at the rear end of the base 1 and symmetrically arranged in the left-right direction, the cross rod 31 is positioned between the two sleeves, and the hinge rod 33 penetrates into the sleeves.

The folding chair 3 also comprises a flexible seat provided at the top ends of the crossbars 31, which is arranged between the top ends of the two sets of crossbars 31. The flexible chair seat comprises two fixing rods 34 and a flexible supporting belt 35, the two fixing rods 34 are connected between the top ends of the two groups of cross rods 31, the flexible supporting belt 35 is connected between the two fixing rods 34, the flexible supporting belt 35 is provided with a plurality of fixing rods and is uniformly distributed at intervals along the left-right direction, and the folding chair 3 can be folded or unfolded when the cross rods 31 rotate through the arrangement of the flexible supporting belt 35.

The base 1 is also provided with a limiting block 11 for supporting and limiting the supporting rod 32, the limiting block 11 is arranged in the middle of the base 1, and the limiting block 11 has high strength and can ensure the limiting strength of the supporting rod 32. The rear end of the limiting block 11 is provided with an inclined plate 12 which is inclined upwards, and the inclined plate 12 can guide the supporting rod 32, so that the supporting rod 32 can slide to the rear end face of the limiting block 11 conveniently.

Two arc plates 13 are further arranged on the base 1, the arc plates 13 are symmetrically arranged on the left side and the right side of the limiting block 11, the opening of each arc plate 13 faces the rear side of the base 1, the supporting rod 32 is conveniently supported on the rear wall surface of each arc plate 13 in a sliding mode, and the limiting block 11, the inclined plate 12 and the arc plates 13 form limiting pieces used for limiting the supporting rod 32. When the supporting rod 32 is supported on the limiting block 11 and the arc-shaped plate 13, the flexible seat of the folding chair 3 is in an open state, and an attendant can sit on the folding chair 3 for rest, so that the burden of the attendant is reduced; when the support rod 32 and the hinge rod 33 are jointed, the flexible seat surface of the folding chair 3 is folded, and at the moment, the folding chair 3 is folded to be close to a plane, so that the space occupied by the folding chair 3 can be reduced, and the folding chair is convenient to carry.

The folding chair 3 is also provided with a backrest 7, the backrest 7 comprising a base 71 which is rotatably mounted on the crossbar 31 by means of bolts and a pull rod 72 which is inserted in the base 71. The base 71 is a pipe structure as a whole, and the base 71 includes swivel arms rotatably fitted on the two sets of cross bars 31 and a reinforcing pipe connected between the two swivel arms. The rotary arm is inserted in the pull rod 72, the pull rod 72 is in a U-shaped structure, two parallel edges of the pull rod 72 are respectively inserted in the rotary arm, the rotary arm is further provided with a jackscrew 4 in a threaded manner, the jackscrew 4 is arranged on the rear side of the rotary arm, and the depth of the pull rod 72 inserted in the rotary arm can be adjusted through the jackscrew 4, so that the height of the backrest 7 can be adjusted. The pull rod 72 can be pulled out of the base 71 to adapt to people with different heights, and can also be inserted into the base 71 to reduce the space occupied by the backrest 7, so that the chair is convenient to carry.

In other embodiments, the limiting member may also be a limiting tube arranged on the base and extending in the left-right direction; or may be only arc-shaped plates arranged on the left and right sides of the base.

In other embodiments, the connecting frame can also be fixed on the top of the base; the connecting frame can also be connecting ear plates arranged at the left side and the right side of the base, and a hoop used for being connected with a cross rod of the wheelchair is fixed on the connecting ear plates.

In other embodiments, the connecting member may also be a connecting hole formed on the telescopic rod and a connecting bolt arranged in the connecting hole.

In other embodiments, the positioning element may also be a plurality of positioning holes arranged on the sleeve and extending along the axial direction of the sleeve, and the positioning bolt is arranged in the vacant hole.

In other embodiments, the fixing member may also be an elastic clamping bead extending along the radial direction of the pull rod, and the base is provided with an ejection hole for radially ejecting the elastic clamping bead.

Claims

1. The utility model provides a folding linkage that drags for wheelchair, includes the base, and the bottom of base is provided with the universal wheel, and the front end of base is provided with the link that is used for being connected with the wheelchair, its characterized in that: the folding chair has still been arranged on the base, the folding chair includes that two sets of X-shaped articulated crossbars of arranging, and two sets of crossbars are arranged along the fore-and-aft direction interval of perpendicular to base, still be connected with between the bottom of two sets of crossbars with the rear end articulated hinge bar of base and with hinge bar parallel arrangement's bracing piece, still arranged flexible seat between the top of crossbar, still arranged on the base and be used for injecing the bracing piece so that flexible seat opens the restriction piece, still rotate on the crossbar and be equipped with the back, the link is used for rotating the assembly with the wheelchair, the handle that is used for with the wheelchair is fixed when the base rotates has still been arranged to the rear end of base.

2. The folding hitch for a wheelchair according to claim 1, wherein: the limiting piece comprises a limiting block arranged on the base, and the rear end of the limiting block is provided with an inclined plate which inclines upwards.

3. The folding hitch for a wheelchair according to claim 2, wherein: the limiting piece further comprises arc plates which are symmetrically arranged on two sides of the limiting block along the front-back direction perpendicular to the base, and the arc plates are provided with backward openings.

4. A folding hitch for a wheelchair according to any one of claims 1 to 3, characterized in that: the connecting frame is in including fixing the sleeve pipe and the cartridge of base bottom are in telescopic link in the sleeve pipe, telescopic link total two and symmetrical arrangement are at sheathed tube both ends, are provided with the setting element that is used for fixing a position the telescopic link on the sleeve pipe, the tip of telescopic link be provided with be used for with wheelchair fixed connection's connecting piece.

5. The folding hitch for a wheelchair according to claim 4, wherein: the sleeve is provided with a jackscrew assembled along the radial direction of the sleeve, and the positioning piece is formed by the jackscrew.

6. The folding hitch for a wheelchair according to claim 4, wherein: the connecting piece is a U-shaped hoop.

7. A folding hitch for a wheelchair according to any one of claims 1 to 3, characterized in that: the backrest comprises a base which is rotatably assembled on the cross rod, the base is of a pipe structure, a pull rod is inserted in the base, and a fixing piece used for fixing the pull rod is arranged on the base.

8. The folding hitch for a wheelchair of claim 7, wherein: the fixing piece is a jackscrew which is assembled on the base in a threaded mode.

9. A folding hitch for a wheelchair according to any one of claims 1 to 3, characterized in that: the flexible chair seat comprises two fixed rods connected between the cross rods, and a flexible supporting belt is connected between the two fixed rods.