CN211187864U

CN211187864U - Wheel chair

Info

Publication number: CN211187864U
Application number: CN201922110188.6U
Authority: CN
Inventors: 杨单明
Original assignee: Wuhan Lurui Technology Co ltd
Current assignee: Wuhan Lurui Technology Co ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-08-07
Anticipated expiration: 2029-11-30

Abstract

A wheelchair comprises a wheelchair main body, a telescopic device, a seat extension device and a rotating device, wherein the telescopic device comprises a pneumatic rod and an adjusting rod, the pneumatic rod is connected to the seat, a supporting steel frame connected with a chair frame is arranged at the bottom of the pneumatic rod, the supporting steel frame is connected with four corners of the wheelchair, and the adjusting rod is connected with the pneumatic rod; the seat extension device comprises a left expansion plate, a right expansion plate and a hanging rod; grooves are formed in the left side and the right side of the side face of the seat; the left expansion plate and the right expansion plate are arranged in the left groove and the right groove of the seat, one end of the hanging rod is arranged at the side edges of the left expansion plate and the right expansion plate, and the other end of the hanging rod is connected with a front support of the wheelchair; the rotating device comprises a rotating shaft, a chain, a middle rotating shaft and a pushing handle, wherein the rotating shaft, the chain, the middle rotating shaft and the pushing handle are connected with wheels on two sides of the wheelchair, gear teeth matched with the chain are arranged on the rotating shaft and the middle rotating shaft, and the rotating shaft and the middle rotating shaft are connected with the chain through the gear teeth. The utility model has the advantages that: the height of the telescopic device can be adjusted to lift up and down, the telescopic plate can enable the legs to be straightened, and the rotating shaft drives the wheels through the pushing handle.

Description

Wheel chair

Technical Field

The utility model relates to a wheelchair.

Background

The appearance of wheelchair makes life, work that they can be better for numerous disabled person provides convenient, comfortable life, makes many disabled person for the society devote powerful strength, and many wheelchairs now all need disabled person oneself to push the hand wheel rim with the hand, and the disabled person of being difficult for uses, can't adjust the height moreover, and it is inconvenient to beat the gypsum in addition shank injury and move about on the wheelchair, and this makes comparatively inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a wheelchair to solve at least one of the problems of the prior art.

The technical scheme adopted for realizing the purpose of the utility model is that the wheelchair comprises a wheelchair main body, a telescopic device which is arranged on a wheelchair frame and can be vertically stretched, a seat extending device for straightening legs and a rotating device for driving the wheelchair, wherein the telescopic device comprises a pneumatic rod and an adjusting rod, the pneumatic rod is connected to the wheelchair seat, the bottom of the pneumatic rod is provided with a supporting steel frame connected with the wheelchair frame, the supporting steel frame is connected with four corners of the wheelchair frame, and the adjusting rod is connected with the pneumatic rod; the seat extension device comprises a left expansion plate, a right expansion plate and a hanging rod; grooves are formed in the left side and the right side of the side face of the seat; the left expansion plate and the right expansion plate are respectively arranged in a left groove and a right groove of the seat through pulleys, a plurality of hanging rods are arranged, one end of each hanging rod is arranged at the side edge of the left expansion plate and the side edge of the right expansion plate, and the other end of each hanging rod is connected with a front support of the wheelchair through a hook; the rotating device comprises a rotating shaft, a chain, a middle rotating shaft and a pushing handle, wherein the rotating shaft is connected with the wheels on two sides of the wheelchair, the middle rotating shaft is connected with the rotating shaft through the chain, the pushing handle is arranged on the middle rotating shaft and drives the wheels to rotate, gear teeth matched with the chain are arranged on the rotating shaft and the middle rotating shaft, and the rotating shaft and the middle rotating shaft are connected with the chain through the gear teeth.

Furthermore, a through hole matched with the hook is arranged on the front support of the wheelchair.

Furthermore, the left telescopic plate side is provided with a groove, a left extension plate is arranged in the left telescopic plate groove through a pulley, a right telescopic plate side is provided with a groove, and a right extension plate is arranged in the right telescopic plate groove through a pulley.

Furthermore, the wheelchair is provided with a brake device which comprises a brake disc arranged on the wheel and connected with the wheel, brake pincers arranged on the edge of the disc and handles for controlling the brake pincers on the wheel at two sides.

Further, the handle is arranged on the armrest of the wheelchair.

The utility model has the advantages that: but through telescoping device height-adjusting for the seat of wheelchair can the oscilaltion, thereby make the patient of sitting on the wheelchair can make the chair frame of wheelchair rise to the height that needs when some activities are carried out with the position rising, provide convenience, the expansion plate can provide the leg of injury gypsum and set level, conveniently moves about on the wheelchair, makes the wheel motion through pushing away the drive pivot, thereby does not need the hand wheel rim.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the telescopic device of the present invention;

fig. 3 is a schematic structural view of the retractable plate and the seat.

Fig. 4 is a schematic structural view of the rotating device of the present invention;

as shown in the figure: 1-wheelchair, 100-front support, 101-seat, 102-wheel, 103-right expansion plate, 104-left expansion plate, 105-hanging rod, 106-hook, 107-through hole, 108-right expansion plate, 109-left expansion plate, 2-supporting steel frame, 3-pneumatic rod, 4-adjusting rod, 5-rotating shaft, 6-chain, 7-middle rotating shaft, 8-pushing handle, 9-handle, 901-braking disc and 902-braking clamp.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

In fig. 1-4, a wheelchair comprises a wheelchair main body 1, a telescopic device which is arranged on a wheelchair frame and can be vertically stretched, a seat extending device for straightening legs and a rotating device for driving the wheelchair, wherein the telescopic device comprises a pneumatic rod 3 and an adjusting rod 4, the pneumatic rod 3 is connected to a wheelchair seat 101, a supporting steel frame 2 connected with the wheelchair frame is arranged at the bottom of the pneumatic rod 3, the supporting steel frame 2 is connected with four corners of the wheelchair frame, and the adjusting rod 4 is connected with the pneumatic rod 3; the seat extension device comprises a left telescopic plate 104, a right telescopic plate 103 and a hanging rod 105; grooves are formed in the left side and the right side of the side face of the seat 101; the left expansion plate 104 and the right expansion plate 103 are respectively arranged in left and right grooves of the seat 101 through pulleys, a plurality of hanging rods 105 are arranged, one end of each hanging rod 105 is hinged to the side edges of the left expansion plate 104 and the right expansion plate 103, and the other end of each hanging rod 105 is connected with the front support 100 of the wheelchair 1 through a hook 106; the rotating device comprises a rotating shaft 5, a chain 6, a middle rotating shaft 7 and a pushing handle 8, wherein the rotating shaft 5 is connected with wheels on two sides of the wheelchair, the middle rotating shaft 7 is connected with the rotating shaft 5 through the chain 6, the pushing handle 8 is arranged on the middle rotating shaft 7 and drives the wheels to rotate, the middle rotating shaft 7 is fixed on the supporting steel frame 2, gear teeth matched with the chain are arranged on the rotating shaft 5 and the middle rotating shaft 7, and the rotating shaft 5 and the middle rotating shaft 7 are connected with the chain.

In this embodiment, the front frame 100 of the wheelchair 1 is provided with a through hole 107 engaged with the hook 106, and the hook 106 is engaged with the through hole 107 to stabilize the left and right

extendable plates

104 and 103.

In this embodiment, the side of left expansion plate 104 is equipped with the recess, is equipped with left extension board 109 through the pulley in the recess of left expansion plate 104, and the side of right expansion plate 103 is equipped with the recess, is equipped with right extension board 108 through the pulley in the recess of right expansion plate 103.

In this embodiment, the wheelchair 1 is provided with a brake device, which includes a brake disc 901 disposed on the wheel and connected to the wheel, brake calipers 902 disposed on the edge of the disc 901, and a handle 9 for controlling the brake calipers 902 on the two sides of the wheel.

In this embodiment, the handle 9 is provided on the armrest of the wheelchair.

In this embodiment, the brake device is a disc brake.

In this embodiment, the right expansion plate 103, the left expansion plate 104, the right extension plate 108, and the left extension plate 109 are disposed in the grooves by means of drawer-type pulleys.

In this embodiment, the pneumatic rod 3 is a pneumatic lifting rod, and includes a switch bolt, a piston and nitrogen, and the switch bolt is connected with the adjusting rod.

During the practicality of this embodiment, adjust pole pull-up 4 for the switch bolt is opened, and piston upper end and lower extreme nitrogen gas are expected to lead to, and because of piston upper end effort is greater than the lower extreme, the cylinder rises, makes seat 101 rise.

In practical use, the extension plate corresponding to the leg to be laid is pulled out, the hook 106 at the top end of the hanging rod 105 at the side edge of the extension plate is clamped and fixed with the front bracket 100 of the wheelchair 1, and the leg which is inconvenient to move due to plaster can be laid after extension.

In practical use, the push handle 8 is rotated to drive the middle rotating shaft 7, so that the chain 6 drives the rotating shaft 5, and the rotating shaft 5 drives the wheelchair 1 without a hand rim or too much effort.

In practical use, when braking, the handle 9 is pressed to make the brake caliper 902 clamp the brake disc 901 rotating synchronously with the wheel, so as to achieve the effect of braking tightly.

It is worth mentioning that: in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; mechanical connection is possible, and the specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a wheelchair, includes the wheelchair main part, establishes the telescoping device that can stretch out and draw back from top to bottom on the wheelchair frame, is used for straightening the seat extension device of shank and drives the rotating device of wheelchair, its characterized in that: the telescopic device comprises a pneumatic rod and an adjusting rod, the pneumatic rod is connected to the wheelchair seat, a supporting steel frame connected with the wheelchair frame is arranged at the bottom of the pneumatic rod, the supporting steel frame is connected with four corners of the wheelchair frame, and the adjusting rod is connected with the pneumatic rod; the seat extension device comprises a left expansion plate, a right expansion plate and a hanging rod; grooves are formed in the left side and the right side of the side face of the seat; the left expansion plate and the right expansion plate are respectively arranged in a left groove and a right groove of the seat through pulleys, a plurality of hanging rods are arranged, one end of each hanging rod is arranged at the side edge of the left expansion plate and the side edge of the right expansion plate, and the other end of each hanging rod is connected with a front support of the wheelchair through a hook; the rotating device comprises a rotating shaft, a chain, a middle rotating shaft and a pushing handle, wherein the rotating shaft is connected with the wheels on two sides of the wheelchair, the middle rotating shaft is connected with the rotating shaft through the chain, the pushing handle is arranged on the middle rotating shaft and drives the wheels to rotate, gear teeth matched with the chain are arranged on the rotating shaft and the middle rotating shaft, and the rotating shaft and the middle rotating shaft are connected with the chain through the gear teeth.

2. The wheelchair of claim 1 wherein: the front bracket of the wheelchair is provided with a through hole which is matched with the hook.

3. The wheelchair of claim 1 wherein: the left expansion plate side is provided with a groove, a left extension plate is arranged in the left expansion plate groove through a pulley, a right expansion plate side is provided with a groove, and a right extension plate is arranged in the right expansion plate groove through a pulley.

4. The wheelchair of claim 1 wherein: the wheelchair is provided with a brake device which comprises a brake disc arranged on the wheel and connected with the wheel, brake pincers arranged on the edge of the disc and handles for controlling the brake pincers of the wheel on two sides.

5. The wheelchair of claim 4 wherein: the handle is arranged on the armrest of the wheelchair.