CN103750962B - A kind of wheelchair - Google Patents

Abstract

The invention provides a wheelchair, which includes a seat device, a transmission device and a deformation device, the seat device includes a seat, armrests arranged on both sides of the seat, and a vehicle frame arranged under the seat. A seat board is provided between the seat and the vehicle frame, and the transmission device includes a push rod arranged on the outside of the back of the seat, an axle passing through the vehicle frame, and two ends of the axle Wheels, handwheels arranged on the outside of the wheels, the deformation device includes a deformation switch arranged on the push rod, a track arranged between the seat and the frame, a track arranged on the frame and a pulley matched with the track and a positioning pin arranged between the pulley and the track. The wheelchair of the present invention can adjust the seat angle, transfer part of the buttocks pressure to the back through the conversion of the seat angle, reduce the probability of bedsores, shorten the recovery time, and reduce the work intensity of the nursing staff.

Description

a wheelchair

technical field

The invention belongs to the field of medical equipment, and in particular relates to a wheelchair.

Background technique

In existing wheelchairs, the seat angle is fixed, and the patient will maintain the same sitting posture after using this seat for a long time, which increases the probability of developing bedsores and is not conducive to recovery.

Contents of the invention

The technical problem to be solved by the present invention is to provide a wheelchair that overcomes the above defects, solves the problem that the seat angle is fixed, reduces the pressure on the buttocks, transfers part of the pressure on the buttocks to the back through the conversion of the seat angle, and reduces the chance of developing bedsores , to shorten the recovery time.

In order to solve the above technical problems, the present invention provides a wheelchair, including a seat device and a transmission device,

The seat device includes a seat, armrests arranged on both sides of the seat, a vehicle frame arranged under the seat, a seat board is arranged between the seat and the vehicle frame,

The transmission device includes a push rod arranged outside the back of the seat, an axle passing through the vehicle frame, wheels arranged at both ends of the axle, and handwheels arranged outside the wheels on one or both sides. ,

The wheelchair also includes a deformation device, and the deformation device includes a deformation switch provided on the push rod, a track provided between the seat and the vehicle frame, a track provided on the vehicle frame and connected to the vehicle frame. The matching pulley of the track and the positioning pin arranged between the pulley and the track press the deformation switch, the positioning pin opens, and the seat passes through the pulley in the track. Slide to change the angle, relax the deformation switch, and the positioning pin is closed.

As a preferred solution of the wheelchair in the present invention, the number of the track and the pulley is two.

As a preferred solution of the wheelchair described in the present invention, the deformation device further includes a return spring installed on the seat plate.

As a preferred solution of the wheelchair according to the present invention, the wheelchair further includes an anti-roll bar, and the anti-roll bar is connected to the vehicle frame.

Compared with the prior art, the wheelchair proposed by the present invention can adjust the seat angle, reduce the pressure on the buttocks, transfer part of the pressure on the buttocks to the back through the conversion of the seat angle, reduce the probability of bedsores, and shorten the Recovery time, and reduce the workload of nursing staff.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort. in,

Fig. 1 is a schematic structural view of a wheelchair in an embodiment of the present invention;

Fig. 2 is a partial structural schematic diagram of a deformation device of a wheelchair of the present invention; and

Fig. 3 is a partial structural schematic diagram of a deformation device of a wheelchair according to the present invention.

Among them: 1 is the seat, 2 is the armrest, 3 is the frame, 4 is the seat board, 5 is the push rod, 6 is the axle, 7 is the wheel, 8 is the hand wheel, 9 is the deformation switch, 10 is the track, 11 Is a pulley, 12 is a positioning pin, 13 is a back-moving spring, and 14 is an anti-roll bar.

detailed description

A wheelchair according to the present invention, which includes: a seat device (not shown), a transmission device (not shown) and a deformation device (not shown),

Described seat device comprises seat 1, is arranged on the armrest 2 of described seat 1 both sides, is arranged on the vehicle frame 3 below described seat 1, is provided between described seat 1 and described vehicle frame 3 There are seat panels 4,

The transmission device includes a push rod 5 arranged on the outside of the back of the seat 1, an axle 6 passing through the vehicle frame 3, wheels 7 arranged at both ends of the axle 6, and wheels 7 arranged on one or both sides. The hand wheel 8 on the outside of the wheel 7,

The deformation device includes a deformation switch 9 arranged on the push rod 5, a track 10 arranged between the seat 1 and the vehicle frame 3, and a track 10 arranged on the vehicle frame 3 and connected to the vehicle frame 3. The matching pulley 11 of the track 10 and the positioning pin 12 arranged between the pulley 11 and the track 10 press the deformation switch 9, the positioning pin 12 is opened, and the seat 1 passes through the pulley 11 slides in the track 10 to change the angle, loosen the deformation switch 9, and the positioning pin 12 is closed.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with specific embodiments.

First of all, "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

Secondly, the present invention is described in detail by means of structural schematic diagrams, etc. When describing the embodiments of the present invention in detail, for the convenience of explanation, the schematic diagrams showing the structure of the wheelchair will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not be used here. Limit the scope of protection of the present invention. In addition, the three-dimensional space of length, width and depth should be included in actual production.

Embodiment one

Please refer to FIG. 1 . FIG. 1 is a three-dimensional schematic diagram of a wheelchair in an embodiment of the present invention. As shown in FIG. 1 , the wheelchair includes: a seat device (not shown), a transmission device (not shown) and a deformation device (not shown).

Described seat device comprises seat 1, is arranged on the armrest 2 of described seat 1 both sides, is arranged on the vehicle frame 3 below described seat 1, is provided between described seat 1 and described vehicle frame 3 There are seat boards 4.

The transmission device includes a push rod 5 arranged on the outside of the back of the seat 1, an axle 6 passing through the vehicle frame 3, wheels 7 arranged at both ends of the axle 6, and wheels 7 arranged on one or both sides. Describe the hand wheel 8 on the outside of the wheel 7.

The deformation device includes a deformation switch 9 arranged on the push rod 5, a track 10 arranged between the seat 1 and the vehicle frame 3, and a track 10 arranged on the vehicle frame 3 and connected to the vehicle frame 3. The matching pulley 11 of the track 10 and the positioning pin 12 arranged between the pulley 11 and the track 10 press the deformation switch 9, the positioning pin 12 is opened, and the seat 1 passes through the pulley 11 slides in the track 10 to change the angle, loosen the deformation switch 9, and the positioning pin 12 is closed.

In order to increase the convenience of deformation, there are two rails 10 and two pulleys 11 .

The deforming device also includes a return spring 13 mounted on the seat board. When the wheelchair needs to be deformed, the nurse pinches the deformation switch 9, releases the positioning pin 12, presses down to slide the track 10 to an appropriate position along the pulley 11, releases the deformation switch 9, and the positioning pin 12 locks the deformation; when the deformation is restored , just pinch the deformation switch 9, lift the push rod 5 upwards with a little force, and the return spring 13 also provides the upward lifting force to complete the reset, and then lock and reset by the positioning pin 12 again.

In order to prevent the wheelchair from tilting backward due to excessive deformation, the wheelchair further includes an anti-rolling bar 14 connected to the vehicle frame 3 .

Components of the above-mentioned wheelchair include but are not limited to the above-mentioned types.

Those of ordinary skill in the art should be able to understand that one of the characteristics or purposes of the present invention is: the wheelchair according to the present invention can adjust the seat angle, reduce the pressure on the buttocks, and change the seat angle to Part of the pressure on the hip is shifted to the back, reducing the chance of developing pressure sores, shortening the recovery time and reducing the workload of the nursing staff.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solutions of the present invention shall be covered by the claims of the present invention.

Claims (3)

1. A wheelchair comprises a seat device and a transmission device,

the seat device comprises a seat, armrests arranged at two sides of the seat, a frame arranged below the seat, a seat plate arranged between the seat and the frame,

the transmission device comprises a push rod arranged on the outer side of the back of the seat, an axle penetrating through the frame, wheels arranged at two ends of the axle and hand wheels arranged on the outer sides of the wheels on one side or two sides,

its characterized in that, the wheelchair still includes the deformation device, the deformation device including set up in deformation switch on the push rod, set up in the seat with track between the frame, set up in on the frame and with track assorted pulley with set up in the pulley with locating pin between the track compresses tightly the deformation switch, the locating pin is opened, the seat passes through the pulley is in slip in the track changes the angle, relaxes the deformation switch, the locating pin is closed, the number of track and pulley is two.

2. The wheelchair of claim 1 wherein the deformation means further comprises a return spring mounted to the seat pan.

3. The wheelchair of claim 1 further comprising an anti-recline bar connected to the frame.