CN215536279U - Novel folding walking aid vehicle - Google Patents

Abstract

The utility model discloses a novel folding rollator, which comprises vertical support pipes, front and rear wheel supports, X-shaped folding rods and handrail supports, wherein front wheels are fixed at the front ends of the front and rear wheel supports, rear wheels are fixed at the rear ends of the front and rear wheel supports, a hoop is fixed at the bottom of each vertical support pipe, each vertical support pipe is fixedly connected with one front and rear wheel support through the hoop, the bottom end of one of the X-shaped folding rods is hinged to the inner side of each hoop, a connecting assembly is hinged to the lower parts of two rods of the X-shaped folding rods, and the outer side end of each connecting assembly is hinged to the inner side of the corresponding vertical support pipe. The original separately arranged front and rear wheel supports are integrated on the same support, and the support can be regarded as the existing transverse support, so that the assembly is convenient and the stability is higher.

Description

Novel folding walking aid vehicle

Technical Field

The utility model relates to a novel folding walking aid vehicle, and belongs to the technical field of walking aid vehicles.

Background

The walking aid vehicle is an auxiliary tool for helping old people or patients who are inconvenient to walk to do walking exercise, and generally comprises four wheels and a vehicle frame. In the prior art, in order to make the bicycle convenient to carry or occupy no space for storage, the bicycle frame is designed to be foldable. However, the front wheel support and the rear wheel support in the prior art are separated, so that the assembly difficulty is increased, and in the existing folding design, the vertical support is not folded relative to the transverse support, so that the volume is still large after the folding and storage are realized.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a novel folding rollator which has more reasonable structural design, relatively simple and convenient folding mode and relatively small volume after being folded.

In order to achieve the purpose, the utility model adopts the technical scheme that: a novel folding rollator is characterized by comprising two vertical support tubes which are parallel left and right, two front and rear wheel supports which are parallel left and right, an X-shaped folding rod and two handrail supports which are parallel left and right, the front end of each front and rear wheel bracket is fixed with a front wheel, the rear end is fixed with a rear wheel, the top of each vertical bracket pipe is inserted with a corresponding handrail bracket, and the handrail bracket are locked and fixed through a pin, wherein the bottom of each vertical bracket pipe is fixed with a hoop, each vertical bracket pipe is fixedly connected with a front and rear wheel bracket through the hoop, the inner side of each hoop is hinged with the bottom end of one of the rods forming the X-shaped folding rod, two rods of the X-shaped folding rod are arranged in a crossed way and are hinged at the central positions of the two rods, a cross bar is fixed on the tops of two bars of the X-shaped folding bar, and the two cross bars are wrapped on the two ends of the bottom of the cushion; the lower parts of the two rods of the X-shaped folding rod are respectively hinged with a connecting assembly, each connecting assembly is composed of two connecting rods, the inner side ends of the two connecting rods of each connecting assembly are hinged on the corresponding rod of the X-shaped folding rod, the outer side ends of the two connecting rods are hinged on the inner side of the corresponding vertical support pipe, and the two connecting rods are connected together at the outer side ends.

Furthermore, there are two fixed connection points between staple bolt and the front and back wheel support that corresponds, one of them fixed connection point is the pin joint, and another fixed connection point is for preventing that the staple bolt rotates, folding spacing stopping point to the rear end of front and back wheel support.

Furthermore, the limit stop points are formed by two bolt holes arranged on the hoop, bolt holes correspondingly arranged on the front and rear wheel supports, and tightening bolts sequentially penetrating through the bolt holes of the hoop, the bolt holes on the front and rear wheel supports and the other bolt hole of the hoop.

Furthermore, the limiting blocking point is composed of limiting claws fixed at the bottom ends of the two rods of the X-shaped folding rod and limiting clamping grooves arranged on the inner sides of the front and rear wheel brackets and corresponding to the limiting claws, wherein the limiting claws rotate along with the rotation of the bottom ends of the two rods of the X-shaped folding rod, and one ends of the limiting claws are fixed on a hinged joint between the X-shaped folding rod and the hoop. After the X-shaped folding rod is opened, the other end of the limiting claw is clamped in the limiting clamping groove to prevent the hoop from rotating and folding towards the rear end of the front and rear wheel support, after the X-shaped folding rod is closed, the limiting claw is separated from the limiting clamping groove to realize unlocking, and the hoop can rotate and fold towards the rear end of the front and rear wheel support.

Compared with the prior art, the utility model has the beneficial effects that:

1. the original independently arranged front and rear wheel supports are integrated on the same support, and the support can be regarded as the existing transverse support, so that the assembly is convenient and the stability is higher;

2. the hoop is hinged with the front wheel bracket and the rear wheel bracket, and the hoop is limited and blocked in normal use, so that the vertical bracket pipe can be folded relative to the front wheel bracket and the rear wheel bracket, and the vertical bracket pipe is not influenced in normal use;

3. according to the utility model, two fixed connection points are arranged between the hoop and the corresponding front and rear wheel supports, wherein one fixed connection point is a hinge point, and the other fixed connection point is a limiting and blocking point for preventing the hoop from rotating and folding towards the rear ends of the front and rear wheel supports, so that the folding unlocking and locking of the vertical support pipe towards the rear ends of the front and rear wheel supports can be realized;

4. design into spacing claw and spacing draw-in groove with the spacing point that blocks between staple bolt and the corresponding front and back wheel support, when X type folding rod bottom pin joint is rotatory so that X type folding rod opens, spacing claw card is established in the spacing draw-in groove of front and back wheel support just, in order to realize locking, it folds to front and back wheel support rear end together with the staple bolt to block vertical support pipe, and when X type folding rod bottom pin joint is rotatory so that X type folding rod closes together, spacing claw is taken off from in the spacing draw-in groove of front and back wheel support, in order to realize the unblock, can accomplish vertical support pipe this moment and rotate to the rear end of front and back wheel support, folding, compared prior art, when operating the cushion so that X type folding rod closes or opens, just can realize the folding unblock or the locking of vertical support pipe, one step targets in place, time and labor saving.

Drawings

FIG. 1 is a perspective view of a structure of an embodiment of the present invention

FIG. 2 is a structural rear view of the first embodiment of the present invention

FIG. 3 is a bottom view of the front and rear wheel removed structure of the second embodiment of the present invention

FIG. 4 is a rear view of a hoop structure according to a second embodiment of the present invention

FIG. 5 is a schematic view showing the connection among the inner side hoop of the front and rear wheel brackets, the bottom end of the X-shaped folding rod, the limiting claws, and the like in the second embodiment of the present invention;

wherein, 1, vertical support pipe, 2, front and back wheel support, 3, X type folding rod, 4, handrail support, 5, front wheel, 6, rear wheel, 7, staple bolt, 8, horizontal pole, 9, handrail, 10, coupling assembling, 11, screw up the bolt, 12, spacing claw, 13, spacing draw-in groove, 14, pin joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1-2, the portable automatic folding rollator of this embodiment comprises two vertical support tubes 1 parallel to each other left and right, two front and rear wheel supports 2 parallel to each other left and right, an X-shaped folding rod 3, and two handrail supports 4 parallel to each other left and right, a handrail 9 is fixed on the top of the handrail support 4 in a conventional manner, a front wheel 5 is fixed on the front end of each front and rear wheel support 2 in a conventional manner, a rear wheel 6 is fixed on the rear end of each front and rear wheel support 2, a corresponding handrail support 4 is inserted into the top of each vertical support tube 1 and is locked and fixed between the two by a pin, wherein the bottom of each vertical support tube 1 is fixed or fastened by a pin and is matched with a hoop 7, the vertical support tubes 1 rotate and fold along with the hoop 7, each vertical support tube 1 is fixedly connected with a corresponding front and rear wheel support 2 by the hoop 7, the bottom end of one of the rods forming the X-shaped folding rod 3 is hinged on the inner side of each hoop 7, the two rods of the X-shaped folding rod 3 are arranged in a crossed mode and hinged at the center positions of the two rods, a cross rod 8 is fixed to the tops of the two rods of the X-shaped folding rod 3 through bolts, and the two cross rods 8 wrap the two ends of the bottom of the cushion; two connecting components 10 are respectively hinged on two rods (specifically, the positions of the middle parts of the two connecting components are upward) of the X-shaped folding rod 3, each connecting component 10 is composed of two connecting rods, the inner ends of the two connecting rods of each connecting component 10 are hinged on the corresponding rod of the X-shaped folding rod 3, the outer ends of the two connecting rods are hinged on the inner side of the corresponding vertical support pipe 1, and the two connecting rods are connected together at the outer ends.

Two fixed connection points are arranged between the hoop 7 and the corresponding front and rear wheel supports 2, wherein one fixed connection point is a hinge point 14, and the other fixed connection point is a limiting and blocking point for preventing the hoop 7 from rotating and folding towards the rear ends of the front and rear wheel supports 2. The limiting blocking point is composed of two bolt holes arranged on the hoop 7, bolt holes arranged on the corresponding positions of the front and rear wheel supports 2, and a tightening bolt 11 which sequentially penetrates through one bolt hole of the hoop 7, the bolt hole on the front and rear wheel supports 2 and the other bolt hole of the hoop 7. The locking or unlocking between the anchor ear 7 and the front and rear wheel brackets 2 is achieved by tightening or loosening the tightening bolts 11.

Example two

As shown in fig. 3-5, the portable automatic folding rollator of this embodiment comprises two vertical support tubes 1 parallel to each other left and right, two front and rear wheel supports 2 parallel to each other left and right, an X-shaped folding rod 3, and two handrail supports 4 parallel to each other left and right, a handrail 9 is fixed on the top of the handrail support 4 in a conventional manner, a front wheel 5 is fixed on the front end of each front and rear wheel support 2 in a conventional manner, a rear wheel 6 is fixed on the rear end of each front and rear wheel support 2, a corresponding handrail support 4 is inserted into the top of each vertical support tube 1 and is locked and fixed between the two by a pin, wherein the bottom of each vertical support tube 1 is fixed or fastened by a pin and is matched with a hoop 7, the vertical support tubes 1 rotate and fold along with the hoop 7, each vertical support tube 1 is fixedly connected with a corresponding front and rear wheel support 2 by the hoop 7, the bottom end of one of the rods forming the X-shaped folding rod 3 is hinged on the inner side of each hoop 7, two rods of the X-shaped folding rod 3 are arranged in a crossed manner and hinged at the center positions of the two rods, a cross rod 8 is fixed at the top of each of the two rods of the X-shaped folding rod 3, and the two cross rods 8 are wrapped at the two ends of the bottom of the cushion; two connecting components 10 are respectively hinged on two rods (specifically, the positions of the middle parts of the two connecting components are upward) of the X-shaped folding rod 3, each connecting component 10 is composed of two connecting rods, the inner ends of the two connecting rods of each connecting component 10 are hinged on the corresponding rod of the X-shaped folding rod 3, the outer ends of the two connecting rods are hinged on the inner side of the corresponding vertical support pipe 1, and the two connecting rods are connected together at the outer ends.

Two fixed connection points are arranged between the hoop 7 and the corresponding front and rear wheel supports 2, wherein one fixed connection point is a hinge point 14, and the other fixed connection point is a limiting and blocking point for preventing the hoop 7 from rotating and folding towards the rear ends of the front and rear wheel supports 2. This spacing stop point is by fixing the spacing claw 12 in two pole bottoms of X type folding rod 3, set up the spacing draw-in groove 13 on the inboard and spacing claw 12 corresponding position of front and back wheel support 2 and constitute, wherein spacing claw 12 rotates and the one end of spacing claw 12 is fixed on the pin joint between X type folding rod 3 and staple bolt 7 along with the rotation of two pole bottoms of X type folding rod 3, 3 back of opening at X type folding rod, spacing claw 12 other end card is in order to block staple bolt 7 to rotate, fold to front and back wheel support 2 rear ends in spacing draw-in groove 13, after X type folding rod 3 closes up, spacing claw 12 breaks away from spacing draw-in groove 13 in order to realize the unblock, staple bolt 7 can rotate, fold to front and back wheel support 2 rear ends.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A novel folding rollator is characterized by comprising two vertical support tubes which are parallel left and right, two front and rear wheel supports which are parallel left and right, an X-shaped folding rod and two handrail supports which are parallel left and right, the front end of each front and rear wheel bracket is fixed with a front wheel, the rear end is fixed with a rear wheel, the top of each vertical bracket pipe is inserted with a corresponding handrail bracket, and the handrail bracket are locked and fixed through a pin, wherein the bottom of each vertical bracket pipe is fixed with a hoop, each vertical bracket pipe is fixedly connected with a front and rear wheel bracket through the hoop, the inner side of each hoop is hinged with the bottom end of one of the rods forming the X-shaped folding rod, two rods of the X-shaped folding rod are arranged in a crossed way and are hinged at the central positions of the two rods, a cross bar is fixed on the tops of two bars of the X-shaped folding bar, and the two cross bars are wrapped on the two ends of the bottom of the cushion; the lower parts of the two rods of the X-shaped folding rod are respectively hinged with a connecting assembly, each connecting assembly is composed of two connecting rods, the inner side ends of the two connecting rods of each connecting assembly are hinged on the corresponding rod of the X-shaped folding rod, the outer side ends of the two connecting rods are hinged on the inner side of the corresponding vertical support pipe, and the two connecting rods are connected together at the outer side ends.

2. The novel folding rollator of claim 1, wherein there are two fixed connection points between the hoop and the corresponding front and rear wheel brackets, one of which is a hinge point and the other is a limit stop point preventing the hoop from rotating and folding towards the rear ends of the front and rear wheel brackets.

3. The foldable rollator of claim 2 wherein the limit stop points are formed by two bolt holes provided on the hoop, corresponding bolt holes provided on the front and rear wheel brackets, and tightening bolts sequentially passing through the bolt holes of the hoop, the bolt holes of the front and rear wheel brackets, and the other bolt hole of the hoop.

4. The novel folding rollator as claimed in claim 2, wherein the limit stopping point is composed of a limit claw fixed at the bottom ends of the two rods of the X-shaped folding rod, and a limit slot opened at the inner side of the front and rear wheel brackets and corresponding to the limit claw, wherein the limit claw rotates along with the rotation of the bottom ends of the two rods of the X-shaped folding rod, and one end of the limit claw is fixed at the hinge point between the X-shaped folding rod and the hoop.

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