CN214318339U

CN214318339U - Wheelchair with conveniently-adjusted pedal height

Info

Publication number: CN214318339U
Application number: CN202022609026.XU
Authority: CN
Inventors: 张敏
Original assignee: Jiangsu College of Nursing
Current assignee: Jiangsu College of Nursing
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-10-01
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a conveniently adjust wheelchair of pedal height relates to the technical field of wheelchair, the utility model discloses aim at solving and adjust pedal problem, the utility model discloses a main part, vaulting pole and pedal, bilateral symmetry is equipped with the vaulting pole around one side of main part, the one end rigid coupling that the main part was kept away from to the vaulting pole has pedal, the vaulting pole rotates with the main part through the round pin axle and links to each other, the below rigid coupling of main part has the gear box, the one end that the vaulting pole was kept away from to the round pin axle runs through the inside that the main part stretched into the gear box. Through the cooperation of user shank weight and bump, can massage the promotion blood flow to user's sole, avoid the long-term unable walking of user to lead to shank blood not to circulate and arouse the pathological change, through the position of handle and the cooperation of worm gear structure, the height of the easy convenient adjustment vaulting pole of person of can facilitating the use or accompanying person, the operation that need lift patient's shank when having saved the adjustment.

Description

Wheelchair with conveniently-adjusted pedal height

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair with conveniently adjusted pedal height.

Background

The wheel chair is a chair provided with wheels and capable of helping to replace walking, is an important moving tool for home rehabilitation, turnover transportation, diagnosis and outing 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 wheel chair, the existing wheel chair is only improved in the aspects of portability and the like, but the comfort and the convenience of the user are not enough, firstly, the blood supply of the user is not enough due to the leg part of the user is not moved for a long time because of the inconvenient movement, thereby can cause the pathological change, simultaneously when needs lift up the shank, the user can't adjust alone, needs the assistant of accompanying person to lift up the shank and adjust the heel brace, uses and wastes time and energy, the use of being not convenient for.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, i.e. the problems of the prior art, the present invention provides a wheelchair with a height conveniently adjustable by a foot pedal, comprising a main body, a stay bar and a foot pedal, wherein the stay bar is symmetrically assembled on the front side and the rear side of one side of the main body, the end of the stay bar away from the main body is fixedly connected with the foot pedal, the stay bar is rotatably connected with the main body through a pin shaft, a gear box is fixedly connected below the main body, one end of the pin shaft away from the stay bar penetrates through the main body and extends into the gear box, a first worm wheel is fixedly sleeved on the outer wall of the end of the pin shaft away from the stay bar, a first worm is meshed on one side of the first worm wheel, the first worm is rotatably connected with the gear box through a bearing, a second worm wheel is fixedly sleeved below the outer wall of the first worm, the front side and the rear side of the gear box are rotatably connected through a bearing, the outer wall of the rotating shaft is assembled with a second worm, and the second worm is meshed with the second worm wheel and connected, handles are symmetrically arranged on the front side and the rear side of the gear box, and one end of the rotating shaft penetrates through the gear box and is fixedly connected with the handles.

The utility model discloses a further set up to: the utility model discloses a gear box, including the handle, the outer wall of pivot, the activity of second worm cup joints on the outer wall of pivot, open on one side of the inner wall of second worm has a plurality of draw-in grooves, the inside slip joint of draw-in groove has the fixture block, and the fixture block links to each other with the outer wall of pivot is fixed, it has the cavity to open in the middle of the inside of gear box, the one end that the handle was kept away from in the pivot stretches into in the cavity, the inside both sides of cavity are equipped with the public head of shaft coupling and the female head of shaft coupling respectively, the public head of shaft coupling and the female head of shaft coupling link to each other with the tip of both sides pivot is fixed respectively.

The utility model discloses a further set up to: a plurality of salient points are fixedly connected above the pedals.

The utility model discloses a further set up to: the coupler male head is coaxial with the coupler female head.

The utility model has the advantages of: through the cooperation of user shank weight and bump, can massage the promotion blood flow to user's sole, avoid the long-term unable walking of user to lead to shank blood not to circulate and arouse the pathological change, through the position of handle and the cooperation of worm gear structure, the height of the easy convenient adjustment vaulting pole of person of can facilitating the use or accompanying person, the operation that need lift patient's shank when having saved the adjustment.

Drawings

Fig. 1 shows the structure diagram of the present invention in a front view.

Figure 2 shows the foot pedal of the present invention in a schematic top view.

Fig. 3 shows a schematic view of the interior of the gear box of the present invention.

Fig. 4 shows the internal structure of the second worm of the present invention.

Reference numeral 1, main part, 2, gear box, 3, vaulting pole, 4, pedal, 5, bump, 6, round pin axle, 7, first worm wheel, 8, first worm, 9, second worm wheel, 10, second worm, 11, fixture block, 12, pivot, 13, shaft coupling male joint, 14, shaft coupling female joint, 15, draw-in groove.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

The utility model provides a wheelchair convenient for adjusting the height of a pedal, which comprises a main body 1, a stay bar 3 and a pedal 4, wherein the stay bar 3 is symmetrically assembled at the front side and the rear side of one side of the main body 1, the end of the stay bar 3 far away from the main body 1 is fixedly connected with the pedal 4, a plurality of salient points 5 are fixedly connected above the pedal 4, a user sits on a cushion of the main body 1 and places two feet at the pedal position below the stay bar 3, the user can not wear thick sports shoes or leather shoes and the like due to inconvenient action, so under the action of the gravity pushed by the user, the salient points 5 can stimulate the sole of the user to massage the sole to promote the blood flow rate, the stay bar 3 is rotatably connected with the main body 1 through a pin shaft 6, the gear box 2 is fixedly connected below the main body 1, one end of the pin shaft 6 far away from the stay bar 3 penetrates through the main body 1 and extends into the gear box 2, the outer wall of one end of the pin shaft 6 far away from the stay bar 3 is fixedly connected with a first worm wheel 7, one side of the first worm wheel 7 is engaged with a first worm 8, the first worm 8 is rotationally connected with the gear box 2 through a bearing, a second worm wheel 9 is fixedly sleeved below the outer wall of the first worm 8, the front side and the rear side of the interior of the gear box 2 are symmetrically rotationally connected with a rotating shaft 12 through the bearing, the outer wall of the rotating shaft 12 is provided with a second worm 10, the second worm 10 is engaged with the second worm wheel 9, the front side and the rear side of the gear box 2 are symmetrically provided with handles, one end of the rotating shaft 12 penetrates through the gear box 2 and is fixedly connected with the handles, a user can rotate the handles on the two sides as required to enable the handles to respectively drive the rotating shafts 12 on the two sides to rotate around the shaft sleeve, the rotating shaft 12 blocks the clamping groove 15 through the clamping block 11 to rotate so as to drive the second worm 10 to rotate, the second worm 10 rotationally blocks the second worm wheel 9 to rotate, and the second worm wheel 9 drives the first worm 8 to rotate so as to block the first worm wheel 7 to rotate, the first worm wheel 7 drives the support rod 3 to rotate through the pin shaft to lift up the angle, and the support rod 3 keeps the lifted angle through the self-locking property of the threads after adjustment.

The second worm 10 is movably sleeved on the outer wall of the rotating shaft 12, one side of the inner wall of the second worm 10 is provided with a plurality of clamping grooves 15, the clamping blocks 11 are slidably clamped inside the clamping grooves 15, the fixture block 11 is fixedly connected with the outer wall of the rotating shaft 12, a cavity is arranged in the middle of the interior of the gear box 2, one end of the rotating shaft 12 far away from the handle extends into the cavity, a coupler male head 13 and a coupler female head 14 are respectively arranged at two sides in the cavity, the coupler male head 13 and the coupler female head 14 are respectively fixedly connected with the end parts of the rotating shafts 12 at two sides, the coupler male head 13 is coaxial with the coupler female head 14, when the stay bars 3 at two sides are required to be simultaneously lifted at the same speed, the handle is pushed to move the rotating shaft 12 at one side before the handle at one side is rotated, therefore, the male coupler head 13 and the female coupler head 14 are in butt joint, and finally, the rotating shafts 12 on two sides can be rotated simultaneously to finish adjustment only by rotating the handle on one side.

The user sits on the cushion of the main body 1 and places two feet at the pedal part below the stay bar 3, because the user is inconvenient to move, the user can not wear sports shoes or leather shoes with thick soles, the salient points 5 can stimulate the soles of the user under the action of pushing gravity, the feet can be massaged to promote the blood flow rate, the user can rotate the handles at two sides as required, the handles respectively drive the rotating shafts 12 at two sides to rotate around the shaft sleeves, the rotating shafts 12 clamp the clamping grooves 15 through the clamping blocks 11 to rotate, so as to drive the second worm 10 to rotate, the second worm 10 rotates to clamp the second worm wheel 9 to rotate, the second worm wheel 9 drives the first worm 8 to rotate so as to clamp the first worm wheel 7 to rotate, the first worm wheel 7 drives the stay bar 3 to rotate through the pin shaft to lift up an adjusting angle, the stay bar 3 keeps the lifting angle through the self-locking property of the screw threads after adjustment, when the support rods 3 on two sides need to be lifted up at the same speed, the rotating shafts 12 on one side only need to be moved by pushing the handle before rotating the handle on one side, so that the male coupler 13 and the female coupler 14 are in butt joint, and finally, the rotating shafts 12 on two sides can be rotated simultaneously by rotating the handle on one side to finish adjustment.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and particularly, various features shown in the various embodiments may be combined in any combination as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, 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, article, or apparatus.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. The utility model provides a convenient wheelchair of pedal height of regulation, includes main part (1), vaulting pole (3) and pedal (4), bilateral symmetry is equipped with vaulting pole (3) around one side of main part (1), the one end rigid coupling that main part (1) was kept away from in vaulting pole (3) has pedal (4), its characterized in that: the supporting rod (3) is rotatably connected with the main body (1) through a pin shaft (6), the gear box (2) is fixedly connected to the lower portion of the main body (1), one end, far away from the supporting rod (3), of the pin shaft (6) penetrates through the main body (1) and extends into the gear box (2), a first worm wheel (7) is fixedly sleeved on the outer wall of one end, far away from the supporting rod (3), of the pin shaft (6), a first worm (8) is meshed with one side of the first worm wheel (7), the first worm (8) is rotatably connected with the gear box (2) through a bearing, a second worm wheel (9) is fixedly sleeved below the outer wall of the first worm (8), the gear box (2) is connected with the front side and the rear side of the inner portion in a symmetrical mode, a rotating shaft (12) is rotatably connected through the bearing, a second worm (10) is assembled on the outer wall of the rotating shaft (12), and the second worm (10) is meshed with the second worm wheel (9), handles are symmetrically arranged on the front side and the rear side of the gear box (2), and one end of the rotating shaft (12) penetrates through the gear box (2) and is fixedly connected with the handles.

2. The wheelchair of claim 1, wherein the height of the pedals is adjustable by: the utility model discloses a gearbox, including gear box (2), second worm (10), inner wall one side of second worm (10) is opened and is had a plurality of draw-in grooves (15), the inside slip joint of draw-in groove (15) has fixture block (11), and fixture block (11) link to each other with the outer wall of pivot (12) is fixed, it has the cavity to open in the middle of the inside of gear box (2), the one end that the handle was kept away from in pivot (12) stretches into in the cavity, the inside both sides of cavity are equipped with coupling male head (13) and coupling female head (14) respectively, coupling male head (13) and coupling female head (14) link to each other with the end fixing of both sides pivot (12) respectively.

3. The wheelchair of claim 1, wherein the height of the pedals is adjustable by: a plurality of salient points (5) are fixedly connected above the pedals (4).

4. The wheelchair of claim 2, wherein the height of the pedals is adjustable by: the coupler male head (13) is coaxial with the coupler female head (14).