CN216222064U

CN216222064U - Stable detachable folding wheelchair

Info

Publication number: CN216222064U
Application number: CN202122768424.0U
Authority: CN
Inventors: 黄飞庆; 何啟昌; 陈尚武
Original assignee: Foshan Zhongzhi Medical Technology Co ltd
Current assignee: Foshan Zhongzhi Medical Technology Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-08
Anticipated expiration: 2031-11-12

Abstract

The utility model provides a stable detachable folding wheelchair, which belongs to the field of medical equipment and comprises a chair frame, wherein a pedal plate and a limiting seat for limiting the downward sliding and rotating of the pedal plate are arranged on the chair frame, an optimized X-shaped frame is arranged on the chair frame and consists of two bearing pipes and a connecting rod, the connecting rod extends downwards when the wheelchair is folded, so that the size of the wheelchair is smaller after the wheelchair is folded, the wheelchair can be matched with the chair frame which can be disassembled into a handrail part and a main frame part, and the pedal plate can be rotated and hidden, so that the wheelchair can occupy less space after being detached and folded, the limited space can be fully utilized in the processes of storage and transportation, the efficiency of storage and transportation is improved, the cost of storage and transportation is reduced, and better use experience can be brought by the rotatable and hidden pedal plate.

Description

Stable detachable folding wheelchair

Technical Field

The utility model belongs to the field of medical equipment, and particularly relates to a stable detachable folding wheelchair.

Background

The wheelchair is a chair provided with wheels and capable of helping to replace walking, is divided into electric and manual folding wheelchairs, is an important moving tool for home rehabilitation, turnover transportation, diagnosis and outgoing activities of wounded persons, patients and disabled persons, not only meets the requirements of physical disabilities and mobility-handicapped persons for riding instead of walking, but also is more important to facilitate the family members to move and care for the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair.

The common wheelchair generally comprises a foldable frame, front and rear wheels, a pedal, left and right detachable armrests, a handle brake device, a seat and the like, wherein the foldable frame comprises a plurality of conventional X-shaped frames, and the folding is formed by the rotation of two support rods of the X-shaped frames. However, the structure of the conventional X-shaped frame is limited by the height of the conventional X-shaped frame even after being folded, the size of the wheelchair is still relatively large, and the wheelchair occupies a large space in the process of storage and transportation, so that the efficiency and the cost of storage and transportation are influenced.

In addition, the existing wheelchairs all use an integrated fixed pedal, which causes certain inconvenience in use, and the pedal restricts the shortest distance between the wheelchair and the table when the wheelchair is pushed close to the table, resulting in poor use experience.

SUMMERY OF THE UTILITY MODEL

Based on the problems in the prior art, the utility model provides a stable detachable folding wheelchair, which comprises a left chair frame, a right chair frame, moving wheels rotatably mounted on the left chair frame and the right chair frame, and a plurality of folding frames arranged between the left chair frame and the right chair frame, wherein each folding frame comprises a bearing pipe and a connecting rod, and one end of each bearing pipe is rotatably connected with one end of the corresponding connecting rod; two sets of folding legs are symmetrical to each other, and two bearing pipe middle parts are connected to make two sets of folding legs form X shape frame to be partial to connecting rod department looks mutual rotation, one side of X shape frame is the free end of the bearing pipe of one of them group folding leg and the free end of the connecting rod of another group folding leg respectively, and the connecting rod is located the top of bearing pipe, the free end of the bearing pipe on the left side of X shape frame and connecting rod rotates respectively and is connected to left chair frame, the bearing pipe on the X shape frame right side and the free end of connecting rod rotate respectively and are connected to right chair frame.

The stable detachable folding wheelchair comprises two or more than two X-shaped frames, preferably two X-shaped frames, enough structural stability can be guaranteed, high production cost cannot be caused, and all the X-shaped frames are arranged between the left chair frame and the right chair frame side by side in the front-back direction of the wheelchair.

The bearing pipe is a square pipe, and a reinforcing column is arranged on one side, far away from the center of the bearing pipe, of the joint of the bearing pipe and the connecting rod; a rotation stopping groove matched with the reinforcing column is arranged on one side of the joint of the connecting rod and the bearing pipe, which is close to the center of the connecting rod, and the length of the rotation stopping groove is greater than the diameter of the reinforcing column; all the rotation stopping grooves are connected to the same reinforcing column relative to the folding frame on the left side, all the rotation stopping grooves are connected to the other reinforcing column relative to the folding frame on the right side, a folding handle is fixedly mounted at one end of one of the reinforcing columns, the overall structural strength of the wheelchair is improved due to the arrangement of the reinforcing columns, and the mutual rotation angles of the connecting rods and the bearing pipes are limited due to the matching of the reinforcing columns and the rotation stopping grooves.

The left chair frame and the right chair frame are composed of an armrest part and a main frame part which are detachably connected with each other, and after the armrest part and the main frame part are disassembled, the height of the wheelchair frame can be further reduced to the height after the optimized X-shaped frame is folded.

Wherein, the connecting rod on be provided with the top pole assorted holding tank of body frame part, the wheelchair when fold condition, the top pole of body frame part is absorbed in the holding tank, can reduce the influence of connecting rod to the folding degree of wheelchair, the body frame part is provided with strengthens side's pipe, the one end of strengthening side's pipe be connected to the top pole, the other end is connected to the bottom pole, the setting of strengthening side's pipe has promoted the overall structure intensity of wheelchair.

The left chair frame and the right chair frame are provided with rotary pedals, the rotary pedals comprise pedals and limiting seats for limiting the pedals to slide downwards and rotate, the limiting seats are fixedly mounted on the chair frames, the upper surfaces of the limiting seats are provided with limiting grooves, the pedals are mounted on the chair frames in a rotatable and sliding mode through sliding rings, the sliding rings are located above the corresponding limiting seats, and limiting protrusions matched with the limiting grooves are arranged on the sliding rings.

Wherein, every running-board is connected to the chair frame through two slip rings, and every running-board corresponds two spacing seats, and the running-board is connected to the wheelchair main part through two points, can guarantee the fastness of connecting and pivoted stability.

The slip ring comprises a right half ring and a left half ring, the right half ring and the left half ring are fixedly connected into a complete slip ring, and the slip ring is convenient to install.

The utility model has the following beneficial effects:

1. the structure of the traditional X-shaped frame is improved and optimized, and the optimized X-shaped frame consists of the connecting rod and the bearing pipe, so that the wheelchair has a smaller volume and occupies less space after being folded. Meanwhile, the wheelchair can be matched with the chair frame which can be disassembled into the armrest part and the main frame part, so that the wheelchair can occupy less space after being disassembled and folded, the limited space can be fully utilized in the storage and transportation processes, the storage and transportation efficiency is improved, and the storage and transportation cost is reduced.

2. The pedal plate can be arranged on the wheelchair frame in a rotating and sliding mode through the matching of the sliding ring and the limiting seat, the pedal plate is rotated to the front of the wheelchair frame during normal use, and the pedal plate is ensured not to descend and rotate under the action of the limiting seat, so that the normal use is not influenced; when pushing away the desk or packing transportation, can with the running-board backward rotation to overlap with the wheelchair frame, avoid the running-board to the influence of use experience and packing transportation.

Drawings

FIG. 1: a schematic three-dimensional structure of a stable detachable folding wheelchair.

FIG. 2: a schematic perspective view of another angle of a stable detachable folding wheelchair.

FIG. 3: an enlarged view at a of fig. 2.

FIG. 4: a three-dimensional structure schematic diagram of a stable detachable folding wheelchair hides a moving wheel and is in an unfolded state.

FIG. 5: the explosion structure of one side chair frame and the rotary pedal.

FIG. 6: a three-dimensional structure diagram of a stable detachable folding wheelchair is provided, wherein moving wheels and handrail parts are hidden, and the folding state is achieved.

For the sake of simplicity, only the connecting frame of the foot pedal is shown in the drawing, and a conventional foot pedal is added in practice.

Detailed Description

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

The stable detachable folding wheelchair shown in the attached figures 1-6 comprises a left chair frame 1, a right chair frame 2, and moving wheels 3 rotatably mounted on the left chair frame 1 and the right chair frame 2, wherein the left chair frame 1 and the right chair frame 2 are respectively composed of an armrest part 11 and a main frame part 12 which are detachably connected with each other, the wheelchair further comprises four groups of folding frames 10 arranged between the left chair frame 1 and the right chair frame 2, each folding frame 10 comprises a bearing pipe 4 and a connecting rod 5, each bearing pipe 4 is a square pipe, and a reinforcing column 20 is arranged on one side, far away from the center of each bearing pipe 4, of the joint of each bearing pipe 4 and the corresponding connecting rod 5; a rotation stopping groove 7 matched with the reinforcing column 20 is arranged on one side of the joint of the connecting rod 5 and the bearing pipe 4, which is close to the center of the connecting rod 5, and the length of the rotation stopping groove 7 is greater than the diameter of the reinforcing column 20; all the folding frames 10 of which the rotation stopping grooves 7 are positioned on the left side relative to the left side are connected to the same reinforcing column 20, all the folding frames 10 of which the rotation stopping grooves 7 are positioned on the right side relative to the right side are connected to the other reinforcing column 20, one end of one reinforcing column 20 is fixedly provided with a folding handle 21, and the mutual rotation angle of the connecting rod 5 and the force bearing pipe 4 is limited by the matching of the reinforcing column 20 and the rotation stopping grooves 7; the connecting rod 5 is provided with an accommodating groove 9 matched with the top round rod 8 of the main frame part 12, when the wheelchair is folded, the top round rod 8 of the main frame part 12 sinks into the accommodating groove 9, the main frame part 12 is provided with a reinforcing square pipe 19, one end of the reinforcing square pipe 19 is connected to the top round rod 8, and the other end of the reinforcing square pipe 19 is connected to the bottom round rod; every two groups of folding frames 10 in the wheelchair are mutually symmetrical, the middle parts of the two force bearing pipes 4 are mutually rotatably connected at the positions which are deviated from the connecting rods 5 to enable the two groups of folding frames 10 to form X-shaped frames 6, one side of each X-shaped frame 6 is the free end of the force bearing pipe 4 of one group of folding frames 10 and the free end of the connecting rod 5 of the other group of folding frames 10 respectively, the connecting rod 5 is positioned above the force bearing pipe 4, the free ends of the force bearing pipe 4 on the left side of the X-shaped frame 6 and the connecting rod 5 are respectively rotatably connected to the left chair frame 1, the free ends of the force bearing pipe 4 on the right side of the X-shaped frame 6 and the connecting rod 5 are respectively rotatably connected to the right chair frame 2, and the two X-shaped frames 6 are arranged side by side in the front-back direction of the wheelchair and are arranged between the left chair frame 1 and the right chair frame 2.

When the wheelchair in the embodiment is in the unfolded state, the two X-shaped frames 6 are in the unfolded state, the bearing pipe 4 and the connecting rod 5 in the same folding frame 10 are almost in the same straight line, the limiting column 6 is sunk into the rotation stopping groove 7, and under the matching of the rotation stopping groove 7 and the limiting column 6, the bearing pipe 4 and the connecting rod 5 cannot rotate excessively, so that the wheelchair has enough bearing strength and cannot deform in the unfolded state, and the function of the traditional X-shaped frame is played.

When needing to be folded, can fold handle 21 and lift upwards through holding, exert the extrusion force to chair frame 1 and right chair frame 2 respectively from both sides simultaneously, under the effect of extrusion force, X-shaped frame 6 contracts and folds, the folding mode of bearing pipe 4 is unanimous with conventional X-shaped frame this moment, but connecting rod 5 can swing downwards, make bearing pipe 4 lower for traditional X-shaped frame's height after folding, for traditional wheelchair, the volume that has more littleer after folding, the space that occupies is still less, the cooperation can be dismantled into the chair frame of handrail portion 11 and main frame portion 12, make the wheelchair can occupy still less space after dismantling folding, can make full use of limited space in the process of storage and transportation.

As a preferred embodiment, the left chair frame 1 and the right chair frame 2 are both provided with a rotary pedal 13, the rotary pedal 13 comprises a pedal plate 14 and a limiting seat 15 for limiting the downward sliding and rotating of the pedal plate 14, the limiting seat 15 is fixedly arranged on the chair frame, the upper surface of the limiting seat 15 is provided with a limiting groove 16, the pedal plate 14 is rotatably and slidably arranged on the chair frame through a sliding ring 17, the sliding ring 17 is positioned above the corresponding limiting seat 15, and the sliding ring 17 is provided with a limiting protrusion 18 matched with the limiting groove 16; each pedal 14 is connected to the chair frame through two sliding rings 17, and each pedal 14 corresponds to two limiting seats 15; the slip ring 17 is composed of a right half ring 171 and a left half ring 172, and the right half ring 171 and the left half ring 172 are fixedly connected to form the complete slip ring 17.

When the wheelchair in the above embodiment is installed, the limit seat 15 is fixedly installed on the two chair frames by screws, the right half ring 171 and the left half ring 172 of the corresponding slide ring 17 are combined and installed on the limit seat 15, the complete slide ring 17 is formed by clamping and matching of the screws, and the pedal plate 14 is fixed on the slide ring 17, so that the installation is completed.

When the foot pedal is used, the position of the limiting seat 15 is fixed, and the sliding ring 17 is positioned above the limiting seat 15, so that the foot pedal 14 connected to the sliding ring 17 cannot descend to exceed the limiting seat 15 under the action of the limiting seat 15, and the foot pedal can bear the weight of the feet of a user. Meanwhile, the limiting groove 16 is matched with the limiting protrusion 18, so that the rotation of the sliding ring 17 can be limited, and the rotation of the pedal plate 14 can be avoided.

When the pedal plate 14 needs to be stored, the pedal plate 14 and the sliding ring 17 are lifted, the limiting protrusion 18 is separated from the limiting groove 16, the pedal plate 14 is in a free rotation state, the pedal plate 14 can be rotated backwards to be overlapped with the wheelchair frame, and the influence of the pedal plate 14 on use experience and package transportation is avoided.

The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A stable detachable folding wheelchair comprises a left chair frame (1), a right chair frame (2) and moving wheels (3) rotatably mounted on the left chair frame (1) and the right chair frame (2), and is characterized by further comprising a plurality of folding frames (10) arranged between the left chair frame (1) and the right chair frame (2), wherein each folding frame (10) comprises a bearing pipe (4) and a connecting rod (5), and one end of each bearing pipe (4) is rotatably connected with one end of each connecting rod (5); two sets of folding leg (10) are symmetry each other, and two bearing tube (4) middle parts are partial to connecting rod (5) department mutual rotation and are connected and make two sets of folding leg (10) form X shape frame (6), one side of X shape frame (6) is the free end of bearing pipe (4) of one of them set of folding leg (10) and the free end of connecting rod (5) of another set of folding leg (10) respectively, and connecting rod (5) are located the top of bearing pipe (4), the free end of bearing pipe (4) and connecting rod (5) on X shape frame (6) left side is the pivoted respectively and is connected to left chair frame (1), the free end of bearing pipe (4) and connecting rod (5) on X shape frame (6) right side is the pivoted respectively and is connected to right chair frame (2).

2. A stable collapsible wheelchair as claimed in claim 1, characterised in that it comprises two or more X-shaped frames (6), all X-shaped frames (6) being arranged side by side in the fore-aft direction of the wheelchair between the left frame (1) and the right frame (2).

3. A stable detachable folding wheelchair as claimed in claim 2, characterized in that the bearing tube (4) is a square tube, and a reinforcing column (20) is arranged at the side of the joint of the bearing tube (4) and the connecting rod (5) far from the center of the bearing tube (4); one side of the joint of the connecting rod (5) and the bearing pipe (4) close to the center of the connecting rod (5) is provided with a rotation stopping groove (7) matched with the reinforcing column (20), and the length of the rotation stopping groove (7) is greater than the diameter of the reinforcing column (20); all the rotation stopping grooves (7) are relatively located on the folding frame (10) on the left side and connected to the same reinforcing column (20), all the rotation stopping grooves (7) are relatively located on the folding frame (10) on the right side and connected to the other reinforcing column (20), a folding handle (21) is fixedly mounted at one end of one reinforcing column (20), and the mutual rotation angle of the connecting rod (5) and the bearing pipe (4) is limited through the matching of the reinforcing column (20) and the rotation stopping grooves (7).

4. A stable collapsible wheelchair as claimed in claim 3, characterised in that the left frame (1) and the right frame (2) are formed by a handrail part (11) and a main frame part (12) which are releasably connected to each other.

5. A stable collapsible wheelchair as claimed in claim 4, characterised in that the connecting rods (5) are provided with receiving slots (9) adapted to the top rods (8) of the frame part (12), the top rods (8) of the frame part (12) being recessed into the receiving slots (9) when the wheelchair is in the collapsed position; the main frame part (12) is provided with a reinforcing square pipe (19), one end of the reinforcing square pipe (19) is connected to the top round rod (8), and the other end of the reinforcing square pipe is connected to the bottom round rod.

6. A stable detachable folding wheelchair as claimed in any one of claims 1 to 5, wherein the left frame (1) and the right frame (2) are provided with a rotary pedal (13), the rotary pedal (13) comprises a pedal (14) and a limiting seat (15) for limiting the downward sliding and rotation of the pedal (14), the limiting seat (15) is fixedly mounted on the frame, the upper surface of the limiting seat (15) is provided with a limiting groove (16), the pedal (14) is rotatably and slidably mounted on the frame by a sliding ring (17), the sliding ring (17) is located above the corresponding limiting seat (15), and the sliding ring (17) is provided with a limiting protrusion (18) matching with the limiting groove (16).

7. A stable collapsible wheelchair as claimed in claim 6, characterised in that each footboard (14) is connected to the frame by two sliding rings (17), each footboard (14) corresponding to two stops (15).

8. A stable collapsible wheelchair as claimed in claim 7, characterised in that the sliding ring (17) consists of a right half-ring (171) and a left half-ring (172), the right half-ring (171) and the left half-ring (172) being fixedly connected to form the complete sliding ring (17).