CN215994536U

CN215994536U - Multifunctional wheelchair

Info

Publication number: CN215994536U
Application number: CN202121352303.1U
Authority: CN
Inventors: 杜明秋; 杨成贵
Original assignee: Sichuan Ast Medical Equipment Co ltd
Current assignee: Sichuan Ast Medical Equipment Co ltd
Priority date: 2020-11-13
Filing date: 2021-06-17
Publication date: 2022-03-11
Anticipated expiration: 2031-06-17
Also published as: CN112370260A; CN113367912A

Abstract

The utility model discloses a multifunctional wheelchair, which comprises a wheelchair frame and a seat assembly, wherein the seat assembly comprises a seat and a seat supporting air spring, the seat is provided with a front end and a rear end, one end of the seat supporting air spring is pivoted on the wheelchair frame, the other end of the seat supporting air spring is pivoted on the rear end, the multifunctional wheelchair also comprises a sitting height adjusting device, the sitting height adjusting device is fixed on the wheelchair frame, and the front end of the seat is pivoted with the sitting height adjusting device. The utility model can facilitate the user to adjust the sitting height according to the requirement so as to ensure that the user keeps more comfortable or correct sitting posture.

Description

Multifunctional wheelchair

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a multifunctional wheelchair.

Background

A wheelchair refers to a chair equipped with wheels and capable of moving or being propelled actively. Nowadays, wheelchairs have become important mobile tools for the rehabilitation, turnover transportation, treatment and outgoing activities of wounded persons, patients and disabled persons at home.

The patent discloses a Reclining chair and particularly discloses the Reclining chair comprising a pair of frames, a backrest, a seat and a shank support, wherein the backrest is pivoted with the frames to realize backrest angle adjustment, the backrest utilizes a backrest gas spring to realize backrest angle fixation, the seat is pivoted with the frames to realize seat angle adjustment, the seat utilizes the seat gas spring to realize support of the weight of a user and bear the weight of the user, the shank support is pivoted with the seat to realize shank support angle adjustment, and the shank support utilizes the shank support gas spring to realize shank support angle adjustment and fixation. This patent has realized that the user can sit the effect that can lie.

However, the above patent does not adjust the height of the chair and a taller user cannot maintain a more comfortable or correct sitting position while using the recliner.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multifunctional wheelchair, which is designed for the multifunctional wheelchair and can be convenient for a user to adjust the sitting height according to the requirement so that the user keeps a more comfortable or correct sitting posture.

The embodiment of the utility model is realized by the following technical scheme:

a multifunctional wheelchair comprises a wheelchair frame and a seat assembly, wherein the seat assembly comprises a seat and a seat supporting air spring, the seat is provided with a front end and a rear end, one end of the seat supporting air spring is pivoted on the wheelchair frame, the other end of the seat air spring is pivoted on the rear end, the multifunctional wheelchair further comprises a sitting height adjusting device, the sitting height adjusting device is fixed on the wheelchair frame, and the front end of the seat is pivoted with the sitting height adjusting device.

In one embodiment of the present invention, the wheelchair further comprises an armrest assembly, wherein the armrest assembly is provided with a lifting structure and an armrest pad, the armrest pad is fixed with the lifting structure, and the lifting structure is fixed with the wheelchair frame.

In an embodiment of the present invention, the height adjustment device is configured as a height adjustment plate, and the height adjustment plate is linearly and equidistantly disposed on a plurality of adjustment holes along the height adjustment direction.

In one embodiment of the present invention, the lifting structure includes a lifting guide fixed to the wheelchair frame, a guide bush fixed to the armrest pad, and a locking part, the lifting guide being inserted to the guide bush,

the locking part is arranged on the guide sleeve and locks the lifting guide rail on the guide sleeve by releasable locking.

In an embodiment of the present invention, the locking portion includes a button nail, a locking nut, and a spring, the lifting rail is configured with a sliding groove along an axial direction thereof, the button nail and the locking nut are respectively located at two sides of the lifting rail, a rod portion of the button nail penetrates through the sliding groove and is connected with the locking nut, the spring is sleeved on the rod portion of the button, one end of the spring abuts against the button nail, the other end of the spring abuts against the lifting rail, the sliding groove is equidistantly arranged with a plurality of locking grooves along a length direction thereof, the locking grooves are arranged at one side of the lifting rail facing the locking nut, and the locking nut can be inserted into the locking grooves.

In an embodiment of the present invention, the seat back further comprises a backrest assembly, the backrest assembly comprises a backrest and a backrest support gas spring, the lower end of the backrest is pivoted to the rear end of the seat, one end of the backrest support gas spring is pivoted to the front end of the seat, and the other end of the backrest support gas spring is pivoted to the lower end of the backrest.

In an embodiment of the utility model, the seat further comprises a lower leg support assembly, the lower leg support assembly comprises a lower leg support and a lower leg support gas spring, the lower leg support is pivoted to the front end of the seat, one end of the lower leg support gas spring is pivoted to the lower leg support, and the other end of the lower leg support gas spring is pivoted to the lower end of the backrest.

In an embodiment of the present invention, the lower leg support assembly further includes a V-shaped connecting member, a vertex of the V-shaped connecting member is pivotally connected to the front end of the seat, one free end of the V-shaped connecting member is fixed to the lower leg support, and the other free end of the V-shaped connecting member is pivotally connected to the lower leg support gas spring.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:

the embodiment of the utility model is provided with the sitting height adjusting device, the connection between the seat and the wheelchair frame is realized through the sitting height adjusting device, when the height of the seat needs to be adjusted, the height of the seat is adjusted by the sitting height adjusting device, and the aim of conveniently adjusting the sitting height of a user according to the requirement is fulfilled, so that the user can keep a comfortable or correct sitting posture.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the present invention from a second perspective;

FIG. 3 is a schematic view of a seat according to the present invention;

FIG. 4 is a front view of the armrest assembly of the present invention;

FIG. 5 is a schematic view of the armrest assembly of the present invention without the guide sleeve;

fig. 6 is a bottom view of fig. 5.

Icon: 1-wheelchair frame, 2-seat component, 21-seat, 211-front end, 212-rear end, 22-seat support gas spring, 3-seat height adjusting plate, 31-adjusting hole, 4-armrest component, 41-armrest pad, 42-lifting structure, 421-lifting guide rail, 4211-sliding groove, 4212-clamping groove, 422-guide sleeve, 423-locking part, 4231-button nail, 4232-locking nut, 4233-spring, 5-backrest component, 51-backrest, 52-backrest support gas spring, 6-calf support component, 61-calf support and 62-calf support gas spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the utility model is used, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "configured," and "connected" should be interpreted 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, a multifunctional wheelchair comprises a wheelchair frame 1 and a seat assembly 2, wherein the seat assembly 2 comprises a seat 21 and a seat supporting gas spring 22, the seat 21 is provided with a front end 211 and a rear end 212, one end of the seat supporting gas spring 22 is pivoted to the wheelchair frame 1, the other end of the seat supporting gas spring 4233 is pivoted to the rear end 212, and the multifunctional wheelchair further comprises a sitting height adjusting device, the sitting height adjusting device is fixed to the wheelchair frame 1, and the front end 211 of the seat 21 is pivoted with the sitting height adjusting device.

In order to facilitate the adjustment of the sitting height of the user as desired in order to maintain a more comfortable or correct sitting posture of the user, the present embodiment provides a multi-function wheelchair comprising a wheelchair frame 1, a seat assembly 2 and a sitting height adjusting means, the seat assembly 2 comprising a seat 21 and a seat supporting gas spring 22, the seat 21 being provided with a front end 211 and a rear end 212. Specifically, when the user sits on the seat 21, the end of the seat 21 near the lower legs of the user is the front end 211, and the end of the seat 21 near the buttocks of the user is the rear end 212. The front end 211 of the seat 21 is pivotally connected to the seat height adjusting device, one end of the seat support gas spring 22 is pivotally connected to the wheelchair frame 1, the other end of the seat 21 gas spring 4233 is pivotally connected to the rear end 212, the seat 21 and the weight of the user are supported by the seat 21 gas spring 4233, the seat 21 has a pivot shaft pivotally connected to the seat height adjusting device, in this embodiment, the pivot shaft is a bolt, and when the seat support gas spring 22 extends and contracts, the seat 21 rotates around the pivot shaft, so as to adjust the angle of the seat 21. When the height of the seat 21 needs to be adjusted, the height of the seat 21 and the height of the pivot shaft of the seat height adjusting device are adjusted by the seat height adjusting device, so that the height of the seat 21 is adjusted, and the purpose of facilitating the adjustment of the seat height of a user according to needs is achieved, so that the user can keep a comfortable or correct sitting posture. In this embodiment, the sitting height adjusting device is configured as a sitting height adjusting plate 3, the sitting height adjusting plate 3 is linearly and equidistantly disposed in a plurality of adjusting holes 31 along the sitting height adjusting direction, a bolt serving as a pivot shaft penetrates through the adjusting holes 31 and then is connected with the seat 21, so as to realize the pivot connection between the seat 21 and the sitting height adjusting plate 3, when the sitting height needs to be adjusted, the bolt serving as the pivot shaft is removed from the original adjusting hole 31 and then is inserted into the required adjusting hole 31, and the height of the seat 21 is adjusted after being connected with the seat 21. The sitting height adjusting device can also be other structures capable of realizing height adjustment. Compared with the prior art, the embodiment is provided with the sitting height adjusting device, the seat 21 is connected with the wheelchair frame 1 through the sitting height adjusting device, when the height of the seat 21 needs to be adjusted, the height of the seat 21 is adjusted by the sitting height adjusting device, and the purpose that a user can adjust the sitting height conveniently according to needs is achieved, so that the user can keep a comfortable or correct sitting posture.

In some embodiments, the multifunctional wheelchair further comprises an armrest assembly 4, the armrest assembly 4 is provided with a lifting structure 42 and an armrest pad 41, the armrest pad 41 is fixed with the lifting structure 42, the lifting structure 42 is fixed with the wheelchair frame 1, and the height of the armrest is adjusted by the lifting structure 42, so that the hand of the user can keep a comfortable posture. The lifting structure 42 includes a lifting guide rail 421, a guide sleeve 422 and a locking part 423, the guide sleeve 422 is fixed to the wheelchair frame 1, the lifting guide rail 421 is fixed to the armrest pad 41, the lifting guide rail 421 is inserted into the guide sleeve 422, the guide sleeve 422 guides the lifting guide rail 421, the locking part 423 is disposed on the guide sleeve 422, and the locking part 423 is used for releasably locking the lifting guide rail 421 to the guide sleeve 422. The locking portion 423 comprises a button nail 4231, a locking nut 4232 and a spring 4233, the button nail 4231 is formed by adopting the prior art, the structure of the button nail 4231 is similar to that of a screw, the button nail 4231 comprises a head portion and a rod portion, and the tail end of the rod portion is provided with an external thread. The lifting rail 421 is configured with a sliding slot 4211 along the axial direction thereof, the sliding slot 4211 is equidistantly arranged along the length direction thereof with a plurality of locking grooves 4212, the rod part of the button nail 4231 penetrates through the sliding slot 4211 to be connected with the locking nut 4232, the spring 4233 is sleeved on the rod part of the button, one end of the spring 4233 is abutted against the button nail 4231, the other end of the spring 4233 is abutted against the lifting rail 421, the button nail 4231 and the locking nut 4232 are respectively positioned at two sides of the lifting rail 421, the locking grooves 4212 are arranged at one side of the lifting rail 421 facing the locking nut 4232, and the locking nut 4232 can be inserted into the locking grooves 4212. In a normal use state, the spring 4233 drives the head of the button nail 4231 to keep away from the moving trend of the lifting rail 421, so that the locking nut 4232 keeps inserted into the locking groove 4212, and the locking state of the lifting rail 421 is further kept. When the height of the armrest is adjusted, the head of the button nail 4231 is pressed, the spring 4233 is compressed, the button nail 4231 pushes the locking nut 4232 to move and move out of the clamping groove 4212, at the moment, the lifting guide rail 421 is in an unlocking state, after a user lifts the armrest pad 41 up and down to a proper position, the button nail 4231 is loosened, under the action of the spring 4233, the button nail 4231 drives the locking nut 4232 to be inserted into the clamping groove 4212 again, the lifting guide rail 421 is in a locking state again, and therefore the height of the armrest pad 41 is fixed.

The multifunctional wheelchair further comprises a backrest assembly 5 and a lower leg support assembly 6, wherein the backrest assembly 5 comprises a backrest 51 and a backrest support gas spring 52, the lower end of the backrest 51 is provided with a pivot shaft, the lower end of the backrest 51 is pivoted to the rear end 212 of the seat 21 through the pivot shaft, one end of the backrest support gas spring 52 is pivoted to the front end 211 of the seat 21, and the other end of the backrest support gas spring 52 is pivoted to the lower end of the backrest 51. A back support gas spring 52 hand valve is also provided on the back of the back 51 for manually controlling the back support gas spring 52. When the inclination angle of the backrest 51 needs to be adjusted, a user pinches the hand valve of the backrest support gas spring 52 and enables the backrest 51 to rotate around the pivot shaft, and when the backrest 51 rotates to a required position, the user releases the hand valve of the backrest support gas spring 52 and enables the backrest support gas spring 52 to be locked so as to achieve the purpose of fixing the backrest 51. When the backrest 51 is inclined to the utmost, the backrest 51 may be substantially flat, and the backrest 51 and the seat 21 may be regarded as a reclining chair capable of lying down.

The lower leg support assembly 6 comprises a lower leg support 61, a V-shaped connecting member and a lower leg support gas spring 62, wherein the lower leg support 61 has a pivot shaft, the lower leg support 61 is pivoted to the front end 211 of the seat 21 through the pivot shaft, in this embodiment, the vertex of the V-shaped connecting member is pivoted at the front end 211 of the seat 21, one free end of the V-shaped connecting member is fixed to the lower leg support 61, and the other free end of the V-shaped connecting member is pivoted to the lower leg support gas spring 62. One end of the lower leg support gas spring 62 is pivoted to the lower leg support 61, and the other end of the lower leg support gas spring 62 is pivoted to the lower end of the backrest 51. The wheelchair frame 1 is provided with a hand valve of a lower leg support gas spring 62, when the inclination angle of the lower leg support 61 needs to be adjusted, a user pinches the hand valve of the lower leg support gas spring 62 and enables the lower leg support 61 to rotate around a pivot shaft, and when the lower leg support 61 rotates to a required position, the user loosens the hand valve of the lower leg support gas spring 62 and enables the lower leg support gas spring 62 to be locked so as to achieve the purpose of fixing the backrest 51. When the lower leg support 61 is rotated to the extreme position, the lower leg support 61 can be substantially flat, and the lower leg support 61, the backrest 51 and the seat 21 can be regarded as a reclining chair capable of lying flat.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional wheelchair comprises a wheelchair frame and a seat assembly, the seat assembly comprises a seat and a seat supporting gas spring, the seat is provided with a front end and a rear end, one end of the seat supporting gas spring is pivoted on the wheelchair frame, the other end of the seat supporting gas spring is pivoted on the rear end, the multifunctional wheelchair is characterized in that,

the wheelchair further comprises a sitting height adjusting device, the sitting height adjusting device is fixed on the wheelchair frame, and the front end of the seat is pivoted with the sitting height adjusting device.

2. The multi-function wheelchair of claim 1,

also comprises an armrest component which is provided with a lifting structure and an armrest cushion,

the armrest pad is fixed with the lifting structure,

the lifting structure is fixed with the wheelchair frame.

3. The multi-function wheelchair of claim 1,

the sitting height adjusting device is configured as a sitting height adjusting plate, and the sitting height adjusting plate is linearly and equidistantly arranged on the plurality of adjusting holes along the sitting height adjusting direction.

4. The multi-function wheelchair of claim 2,

the lifting structure comprises a lifting guide rail, a guide sleeve and a locking part,

the guide sleeve is fixed on the wheelchair frame,

the lifting guide rail is fixed on the armrest pad and is inserted into the guide sleeve,

5. The multi-function wheelchair of claim 4,

the locking part comprises a button nail, a locking nut and a spring,

the lifting guide rail is provided with a sliding groove along the axial direction thereof,

the button nail and the locking nut are respectively positioned at two sides of the lifting guide rail, the rod part of the button nail penetrates through the chute and is connected with the locking nut,

the spring is sleeved on the rod part of the button, one end of the spring is abutted against the button nail, the other end of the spring is abutted against the lifting guide rail,

the sliding groove is equidistantly provided with a plurality of clamping grooves along the length direction, the clamping grooves are arranged on one side of the lifting guide rail facing the locking nut, and the locking nut can be inserted into the clamping grooves.

6. The multi-function wheelchair of claim 1,

also comprises a backrest component, the backrest component comprises a backrest and a backrest supporting gas spring,

the lower end of the backrest is pivoted with the rear end of the seat,

one end of the backrest supporting gas spring is pivoted to the front end of the seat, and the other end of the backrest supporting gas spring is pivoted to the lower end of the backrest.

7. The multi-function wheelchair of claim 6,

also comprises a lower leg support component which comprises a lower leg support and a lower leg support gas spring,

the shank support is pivoted to the front end of the seat,

one end of the shank support gas spring is pivoted to the shank support, and the other end of the shank support gas spring is pivoted to the lower end of the backrest.

8. The multi-function wheelchair of claim 7,

the lower leg support assembly further comprises a V-shaped connector,

the vertex of the V-shaped connecting piece is pivoted at the front end of the seat, one free end of the V-shaped connecting piece is fixedly connected with the lower leg support, and the other free end of the V-shaped connecting piece is pivoted with the lower leg support gas spring.