CN209474998U - a wheelchair - Google Patents

Abstract

The utility model discloses a wheelchair, which comprises a wheelchair frame and a driving device. The driving device is arranged at the bottom of the front and rear ends of the wheelchair frame; the wheelchair frame includes a backrest, a seat cushion, a pedal and an armrest; At one end of the bottom of the cushion, the armrests are arranged on both sides of the cushion and connected to the cushion in rotation; the driving device includes a driven wheel arranged at the bottom of the cushion and a push wheel with a shock absorbing device, and the driven wheel and the push wheel are connected by a horizontal tube. A fixed rod is arranged at the rotating part of the backrest and the seat cushion. One end of the fixed rod is hinged with the backrest, and the other end is fixed on the seat cushion by screws. The wheelchair can lie down and sit, which is convenient for the patient to adjust the sitting and lying posture, and improves the comfort of the patient. At the same time, it is convenient for patients to transfer from the hospital bed to the wheelchair, and the shock absorbing device provided can make the wheelchair frame have the characteristics of shock absorption, which can effectively relieve the bumpy feeling and greatly improve the comfort of the wheelchair.

Description

a wheelchair

technical field

The utility model relates to the technical field of rehabilitation equipment, more specifically, it relates to a wheelchair.

Background technique

A wheelchair is a chair on or with wheels, generally used by people who have difficulty walking. Wheelchairs are an important tool for rehabilitation. Wheelchairs are not only a means of transportation for physically disabled and handicapped people, but more importantly, they use wheelchairs to perform physical exercises and participate in social activities.

Patients are unwilling to live in a small ward every day. At the same time, going outside to breathe fresh air is conducive to the recovery of patients. In addition, some patients often need to go to and from different examination rooms. For most patients, they can only use a wheelchair to leave the ward, but in the process of transferring the patient from the hospital bed to the wheelchair, not only does it take a lot of manpower, but more importantly, if you are not careful, it may cause harm to the patient. The patient causes secondary injuries, so it is necessary to provide a wheelchair that is convenient for the patient to adjust the posture and facilitate the transfer of the patient; at the same time, the patient uses the wheelchair for a long time and oppresses a certain part, which will cause symptoms such as pressure sores and bedsores, and when the patient uses the wheelchair , lack of strong support for the back and other issues.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a wheelchair, which has the characteristics of being convenient to adjust the sitting and lying posture, preventing sores and shock absorption.

In order to achieve the above object, the utility model provides the following technical solutions:

A wheelchair includes a wheelchair frame and a driving device, the driving device is arranged at the bottom of the front and rear ends of the wheelchair frame; the wheelchair frame includes a backrest, a seat cushion, a footrest and an armrest, and the backrest and the seat cushion are rotatably connected, The pedal is arranged at one end of the bottom of the cushion, and the armrests are arranged on both sides of the cushion and are rotatably connected with the cushion; the driving device includes a driven wheel arranged at the bottom of the cushion and a shock absorber The push wheel is connected by a horizontal tube between the driven wheel and the push wheel.

By adopting the above technical solution, the driving device can drive the wheelchair frame to move, thereby controlling the walking of the wheelchair, and the rotation connection between the backrest and the seat cushion can make the backrest rotate and the seat cushion level, so that the wheelchair becomes a bed shape, which is convenient for the user to adjust the posture. The user can directly transfer from the hospital bed to the wheelchair by turning over, which is convenient to use. At the same time, the shock-absorbing device set on the push wheel can make the wheelchair frame have the characteristics of shock-absorbing, which can effectively relieve the bumpy feeling during the use process such as moving. Greatly improves the comfort of the wheelchair.

Further, a fixed rod is provided at the turning point of the backrest and the seat cushion, one end of the fixed rod is hinged to the backrest, and the other end is fixed on the cushion by screws, and an anti-pressure sore pad is provided on the cushion.

By adopting the above technical scheme, the angle of the backrest and seat cushion can be fixed to avoid excessive rotation or instability during use, the structure is stable, and it is easy to use. The blood circulation of the user prevents muscle atrophy caused by frequent sitting.

Further, the top of the backrest is provided with a handle that is rotatably connected to the backrest, the back of the backrest is provided with a back basket, and the two sides of the back basket are rotatably connected with legs, and the backrest is provided with an inflatable seat close to the seat cushion. An air bag, the inflatable air bag can slide up and down the backrest.

By adopting the above technical solution, the handle on the top of the backrest can easily push the wheelchair, and the back basket provided on the back of the backrest can be used to place items, which increases the storage space and facilitates placement. Supportive, stable when the backrest and seat are turned horizontally, the inflatable bladder provides lumbar support and adjusts to the height of the user.

Further, the side where the seat cushion is hinged to the armrest is provided with a groove for the armrest to snap into, and the armrest is provided with a buffer pad.

By adopting the above technical solution, the armrest can be clamped into the groove on the seat cushion, avoiding shaking during use, and improving the reliability of use, and at the same time, the buffer pad provided on the armrest can improve the user's comfort.

Further, the shock absorbing device includes a shock absorbing sleeve, a spring, a fixing piece and a telescopic rod, the spring is vertically arranged in the shock absorbing sleeve, the spring is sleeved on the telescopic rod, and the top of the telescopic rod It is threadedly connected with the shock-absorbing sleeve, the bottom of the telescopic rod is threaded with the fixing piece, the fixing piece can slide vertically on the shock-absorbing sleeve, and the fixing piece is coaxial with the push wheel connect.

By adopting the above-mentioned technical scheme, the shock absorbing device is connected with the manual wheel, which can buffer the cushioning force of turning over to the wheelchair bed on the one hand, and on the other hand, can slow down the bumpy feeling when encountering uneven road surfaces, and improve the riding comfort of the user.

In summary, the utility model has the following beneficial effects: the driving device can drive the wheelchair frame to move, thereby controlling the walking of the wheelchair, and the rotation connection between the backrest and the seat cushion can make the backrest rotate and the seat cushion level, so that the wheelchair becomes a bed shape, which is convenient The user can adjust the posture, and at the same time, the user can be directly transferred from the hospital bed to the wheelchair by turning over, which is convenient to use. , can effectively relieve the bumpy feeling and greatly improve the comfort of the wheelchair. The backrest and seat cushion can be fixed at an angle to avoid excessive rotation or instability during use. The structure is stable and easy to use. The anti-pressure sore pad can prevent and relieve pressure sores It acts as an artificial massage to promote the user's blood circulation and prevent muscle atrophy caused by frequent sitting. The handle on the top of the backrest can be used to push the wheelchair easily. The back basket on the back of the backrest can be used to place items and increase the storage space. , easy to place, and at the same time, the legs set on the side of the back basket can be expanded to contact the ground to form a support, and remain stable when the backrest and seat cushion are turned horizontally, and the armrest can be clamped into the groove on the seat cushion to avoid shaking during use and improve In order to ensure the reliability of use, the buffer pad provided on the armrest can improve the user's comfort.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of wheelchair of an embodiment provided by the utility model;

Fig. 2 is the schematic diagram of the enlarged structure of part A in Fig. 1;

Fig. 3 is the schematic diagram of enlarged structure of part B in Fig. 1;

Fig. 4 is a partial structural schematic diagram of a back basket of an embodiment provided by the present invention;

Fig. 5 is an exploded view of a partial structure of a shock absorbing device according to an embodiment of the present invention.

In the figure: 1. Wheelchair frame; 2. Backrest; 21. Handle; 22. Back basket; 23. Feet; 24. Inflatable air bag; 3. Cushion; 31. Fixing rod; 32. Anti-pressure sore pad; 4. Foot Plate; 5, handrail; 51, groove; 52, buffer pad; 6, driving device; 7, driven wheel; 8, push wheel; 81, horizontal tube; 9, shock absorbing device; 91, shock absorbing sleeve; 92 , spring; 93, fixing piece; 94, telescoping rod.

Detailed ways

Example:

Below in conjunction with accompanying drawing 1-4 the utility model is described in further detail.

A kind of wheelchair, as shown in Figure 1, comprises vertically placed wheelchair frame 1 and driving device 6, and driving device 6 is arranged on the bottom of wheelchair frame 1 front and rear ends; Wheelchair frame 1 comprises backrest 2, cushion 3, pedal 4 and Armrest 5, backrest 2 and seat cushion 3 are rotationally connected, pedal 4 is arranged on the bottom of the front end of seat cushion 3, armrest 5 is arranged on the left and right sides of seat cushion 3 and is connected with seat cushion 3 in rotation, and the rotating shaft is arranged on the side wall of seat cushion 3; 6 includes a driven wheel 7 arranged at the front end of the bottom of the seat cushion 3 and a push wheel 8 with a shock absorbing device 9 arranged at the rear end of the bottom of the seat cushion 3. The driving device 6 can drive the wheelchair frame 1 to move, thereby controlling the walking of the wheelchair. The rotating connection of the seat cushion 3 can make the backrest 2 rotate and be level with the seat cushion 3, so that the wheelchair becomes a bed shape, which is convenient for the user to adjust the posture. At the same time, the user can directly transfer from the hospital bed to the wheelchair by turning over, which is convenient to use.

As shown in Figure 2, the backrest 2 and the seat cushion 3 are rotated with a fixed rod 31, one end of the fixed rod 31 is hinged with the backrest 2, and the other end is fixed on the side wall of the seat cushion 3 by screws, and the side wall of the seat cushion 3 is provided with two Threaded holes, backrest 2 and seat cushion 3 can fix the angle, avoid excessive rotation or instability during use, stable structure, easy to use, an anti-pressure sore pad 32 is placed on the seat cushion 3, and a vent hole is provided at the bottom of the seat cushion 3 (on the figure Not shown), the anti-pressure sore pad 32 can prevent and relieve decubitus and other diseases, play the role of artificial massage, promote blood circulation of the user, and prevent muscle atrophy caused by frequent sitting. The advanced groove 51 avoids shaking during use and improves the reliability of use.

As shown in Figure 3, an inflatable airbag 24 is provided at the bottom of the front of the backrest 2. The inflatable airbag 24 can provide lumbar support to the user. The inflatable airbag 24 can slide up and down on the backrest 2, and the backrest 2 is provided with two slide grooves , it is convenient to adjust the appropriate position according to the height of the user.

As shown in Figure 4, the top of the backrest 2 is provided with a handle 21 that is rotatably connected with the backrest 2. The airbag 24 can provide lumbar support to the user. The left and right sides of the back basket 22 are rotated and connected with supporting feet 23. The supporting feet 23 are fixed and clamped by the U-shaped frame at the bottom of the back basket 22 at ordinary times. When the wheelchair needs to be converted into a bed, it can be rotated for use Support; the driven wheel 7 and the push wheel 8 are connected by a horizontal tube 81, which ensures the linkage of the driving device 6 and improves the stability of the wheelchair; the armrest 5 is provided with a buffer pad 52, which can be used to improve the comfort of the user Spend.

As shown in Figure 5, the shock absorbing device 9 includes a shock absorbing sleeve 91, a spring 92, a fixing piece 93 and a telescopic rod 94, the spring 92 is vertically arranged in the middle of the shock absorbing sleeve 91, and the spring 92 is sleeved on the telescopic rod 94, stretching The top of the rod 94 is threaded with the shock-absorbing sleeve 91, the bottom of the telescopic rod 94 is threaded with the fixing part 93, the fixing part 93 can slide vertically on the shock-absorbing sleeve 91, the fixing part 93 is coaxially connected with the push wheel 8, and the set The damping device 9 is connected with the manual wheel, which can buffer the cushioning force of turning over to the wheelchair bed on the one hand, and can slow down the bumpy feeling when running into uneven roads on the other hand, so as to improve the riding comfort of the user.

Working principle: when the utility model is used as a wheelchair, the wheelchair can be pushed forward by the handle 21, or the user can drive the entire wheelchair forward by pushing the wheel 8; when the wheelchair is lying down, first put down the armrests 5 on both sides, Then loosen the fixed rod 31, make the backrest 2 and the seat cushion 3 turn to the level, then tighten the fixed rod 31, at this moment, the user can directly turn over from the hospital bed to the wheelchair, and the shock absorber 9 can buffer the impact brought by turning over , reduce bumpy feeling.

In summary, the utility model has the following beneficial effects: the driving device can drive the wheelchair frame to move, thereby controlling the walking of the wheelchair, and the rotation connection between the backrest and the seat cushion can make the backrest rotate and the seat cushion level, so that the wheelchair becomes a bed shape, which is convenient The user adjusts the posture, and at the same time, the user can directly transfer from the hospital bed to the wheelchair by turning over. , can effectively alleviate the bumpy feeling and greatly improve the comfort of the wheelchair. The backrest and seat cushion can be fixed at an angle to avoid excessive rotation or instability during use. The structure is stable and easy to use. The handle on the top of the backrest can easily push the wheelchair. The back basket on the back of the backrest can be used to place items, which increases the storage space and is easy to place. At the same time, the legs on the side of the back basket can be expanded to touch the ground to form a support, and remain stable when the backrest and seat cushion are turned horizontal.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (5)

1. a kind of wheelchair, including wheelchair frame (1) and driving device (6), it is characterised in that: the driving device (6) is arranged in institute State the bottom of wheelchair frame (1) front and back end；

The wheelchair frame (1) includes backrest (2), cushion (3), foot pedal (4) and handrail (5), the backrest (2) and the cushion (3) it is rotatablely connected, in the cushion (3) bottom end, the handrail (5) is arranged in the cushion for foot pedal (4) setting (3) two sides and with the cushion (3) be rotatablely connected；

The driving device (6) includes the driven wheel (7) for being set to cushion (3) bottom and the hand-pushing wheel for having damping device (9) (8), it is connected between the driven wheel (7) and the hand-pushing wheel (8) by transverse tube (81).

2. a kind of wheelchair according to claim 1, it is characterised in that: be provided at the backrest (2) and cushion (3) rotation Fixed link (31), hingedly, the other end is fixed by screws on the cushion (3) for fixed link (31) one end and the backrest (2), Pressure sore prevention pad (32) are provided on the cushion (3).

3. a kind of wheelchair according to claim 2, it is characterised in that: be provided with and the backrest at the top of the backrest (2) (2) handle (21) being rotatablely connected, backrest (2) rear portion are provided with dosser (22), dosser (22) the two sides rotation connection Have stabilizer blade (23), the backrest (2) is provided with air bag (24) at the cushion (3), and the air bag (24) can It is slid up and down in the backrest (2).

4. a kind of wheelchair according to claim 3, it is characterised in that: the cushion (3) and the handrail (5) hinged side While being provided with the groove (51) sticked into for handrail (5), cushion (52) are provided on the handrail (5).

5. a kind of wheelchair according to claim 4, it is characterised in that: the damping device (9) includes shock-absorbing sleeve (91), bullet Spring (92), fixing piece (93) and telescopic rod (94), the spring (92) are vertically arranged in shock-absorbing sleeve (91), the spring (92) it is set on the telescopic rod (94), is threadedly coupled at the top of the telescopic rod (94) with the shock-absorbing sleeve (91), it is described to stretch Contracting bar (94) bottom is threadedly coupled with the fixing piece (93), and the fixing piece (93) can slide vertically on the shock-absorbing sleeve (91) Dynamic, the fixing piece (93) and the hand-pushing wheel (8) are coaxially connected.