CN213346404U

CN213346404U - Wheelchair seat convenient for position adjustment of stress point

Info

Publication number: CN213346404U
Application number: CN202021491126.0U
Authority: CN
Inventors: 杨欢丽
Original assignee: Dongguan Jingwang Hardware Plastic Cement Co ltd
Current assignee: Dongguan Jingwang Hardware Plastic Cement Co ltd
Priority date: 2020-07-26
Filing date: 2020-07-26
Publication date: 2021-06-04
Anticipated expiration: 2030-07-26

Abstract

The utility model discloses a seat for wheelchair convenient to carry out position control to stress point, including chair frame, wheel and leg frame, the top of chair frame is fixed with the bottom plate, and installs the cushion on the bottom plate, the outside hub connection of bottom plate has the handle, and the one end of handle runs through the bottom plate and is connected with the screw rod through the belt, screw rod hub connection is in the activity inslot, and the activity groove sets up the top of bottom plate, the guide slot has been seted up at the top of bracing piece, and has placed the guide ball in the guide slot, the top of guide ball is located the kerve, the bottom edge hub connection of chair frame has the wheel, the bottom of bottom plate is fixed with the installation pole, the one end of adjusting the pole is located the inboard of leg frame. This seat for wheelchair convenient to carry out position control to stress point can adjust the stress point of user's cushion, improves wheelchair life, and when promoting the wheelchair, carries out the rehabilitation training to user's shank in real time simultaneously.

Description

Wheelchair seat convenient for position adjustment of stress point

Technical Field

The utility model relates to a wheelchair technical field specifically is a seat for wheelchair convenient to carry out position control to stress point.

Background

The wheelchair is a tool for the old people who are injured and inconvenient to walk or uncomfortable in body to walk instead of walk, and the wheelchair is generally composed of wheels, a frame and a seat, but the existing wheelchair has the following problems in use:

cushion in wheelchair can move about a bit for the patient can carry out the tie of certain degree on the wheelchair and lie, simultaneously in order to alleviate holistic weight and cost, the seat bottom mostly adopts the cavity setting, and then the patient is just sitting and when lying, the stress point of seat bottom changes, long-time use, cause the bottom to damage easily, and then need adjust the stress point of seat, the wheelchair is when using to some shank injured patients simultaneously, for improving its practicality, need can help patient's shank to carry out the rehabilitation training.

Aiming at the problems, innovative design is urgently needed on the basis of the original wheelchair.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a seat for wheelchair convenient to carry out position control to stress point to solve above-mentioned background and propose current wheelchair, need adjust the stress point of seat, need can help patient's shank to carry out rehabilitation training's problem simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a chair for a wheelchair convenient for carrying out position adjustment on a stress point comprises a chair frame, wheels and leg frames, wherein a bottom plate is fixed at the top of the chair frame, a cushion is installed on the bottom plate, a handle is connected to the outer side of the bottom plate in a shaft mode, one end of the handle penetrates through the bottom plate and is connected with a screw rod through a belt, the screw rod is connected in a movable groove, the movable groove is formed in the top of the bottom plate, a supporting rod is sleeved on the screw rod in a threaded mode, a guide groove is formed in the top of the supporting rod, a guide ball is placed in the guide groove, the top of the guide ball is located in a bottom groove, the bottom groove is formed in the bottom of the cushion, the wheels are connected to the edge of the bottom of the chair frame in a shaft mode, an installation rod is fixed at the bottom of the bottom plate, a limiting groove is formed in the installation rod, an adjusting rod is placed in the limiting groove, and a spring is fixed between the leg frame and the chair frame.

Preferably, the support rod is connected with the movable groove in a sliding mode, and the support rod is parallel to the seat cushion.

Preferably, the guide balls are rotatably connected with the guide grooves, and the guide grooves are distributed on the support rod at equal intervals.

Preferably, the axle head of wheel runs through in the inboard of chair frame bottom, and the axle head of wheel has seted up the constant head tank, and the one end that has the guide arm in the constant head tank, the other end of guide arm runs through the chair frame and is fixed with the guide disc, the avris of guide disc runs through and installs the telescopic link, and overlaps on the telescopic link and be equipped with the lantern ring to the outside of lantern ring is fixed with the push rod, and the one end of push rod is connected with the hub connection between the regulation pole simultaneously.

Preferably, one end of the guide rod is designed to be a rectangular structure, and one end of the guide rod is clamped with the positioning groove.

Preferably, the adjusting rod is connected with the limiting groove in a sliding mode, and the outer side of the adjusting rod is attached to the inner wall of the limiting groove.

Compared with the prior art, the beneficial effects of the utility model are that: the wheelchair seat is convenient for adjusting the position of the stress point;

1. the supporting rods are connected with the movable groove in a sliding mode and are parallel to the cushion, when the screw rod is driven to rotate in the movable groove through the transmission of the handle and the belt, the supporting rods in threaded connection with the screw rod can be driven to slide in the movable groove, and the stress point is adjusted by adjusting the position of the supporting rods at the bottom of the cushion;

2. sliding connection between regulation pole and the spacing groove through setting up, and laminate each other between the outside of adjusting the pole and the inner wall of spacing groove, when promoting the chair frame, the wheel rotates thereupon, the wheel passes through the rotation that the constant head tank drove the guide arm, the guide arm passes through the rotation that the guide plate drove telescopic link and the lantern ring, and then drive the push rod and rotate on adjusting the pole, and promote the pole and adjust the reciprocal slip of pole in the spacing inslot, promote leg frame through adjusting the pole and rotate in the chair frame outside, the use of cooperation spring, make leg frame can reciprocating motion, and then carry out rehabilitation training to user's shank.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the top cross-sectional structure of the support rod of the present invention;

FIG. 3 is a schematic side sectional view of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;

fig. 5 is the schematic view of the structure of the guide rod of the present invention.

In the figure: 1. a chair frame; 2. a base plate; 3. a cushion; 4. a handle; 5. a belt; 6. a screw; 7. a movable groove; 8. a support bar; 9. a guide groove; 10. guiding a ball; 11. a bottom groove; 12. a wheel; 13. a guide bar; 14. a guide disc; 15. a telescopic rod; 16. a collar; 17. a push rod; 18. adjusting a rod; 19. a limiting groove; 20. mounting a rod; 21. a leg frame; 22. positioning a groove; 23. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a chair for a wheelchair convenient for adjusting the position of a stress point comprises a chair frame 1, a bottom plate 2, a cushion 3, a handle 4, a belt 5, a screw rod 6, a movable groove 7, a support rod 8, a guide groove 9, a guide ball 10, a bottom groove 11, wheels 12, a guide rod 13, a guide disc 14, a telescopic rod 15, a lantern ring 16, a push rod 17, an adjusting rod 18, a limiting groove 19, an installation rod 20, a leg frame 21, a positioning groove 22 and a spring 23, wherein the bottom plate 2 is fixed at the top of the chair frame 1, the cushion 3 is installed on the bottom plate 2, the handle 4 is connected with the outer side shaft of the bottom plate 2, one end of the handle 4 penetrates through the bottom plate 2 and is connected with the screw rod 6 through the belt 5, the screw rod 6 is connected in the movable groove 7 in a shaft, the movable groove 7 is arranged at the top of the bottom plate 2, the support rod 8 is sleeved on the screw thread on the screw rod 6, the guide groove 9 is arranged at, the bottom groove 11 is arranged at the bottom of the cushion 3, the edge of the bottom of the chair frame 1 is connected with a wheel 12 through a shaft, the bottom of the bottom plate 2 is fixed with an installation rod 20, a limit groove 19 is arranged in the installation rod 20, an adjusting rod 18 is arranged in the limit groove 19, one end of the adjusting rod 18 is positioned at the inner side of the leg frame 21, the top of the leg frame 21 is connected with the outer side of the chair frame 1 through a shaft, and a spring 23 is fixed between the leg frame 21 and the chair frame 1;

the supporting rod 8 is connected with the movable groove 7 in a sliding mode, the supporting rod 8 is parallel to the cushion 3, when the screw 6 is driven to rotate in the movable groove 7 through the handle 4 and the belt 5, the supporting rod 8 can be driven to slide in the movable groove 7, and the stress point of the cushion 3 can be adjusted by adjusting the position of the supporting rod 8;

the guide balls 10 are rotatably connected with the guide grooves 9, the guide grooves 9 are distributed on the support rod 8 at equal intervals, when the support rod 8 slides in the movable groove 7, the guide balls 10 at the top of the support rod 8 are in contact with the bottom groove 11, the guide balls 10 are driven to rotate in the guide grooves 9 and slide in the bottom groove 11, and the friction force of the support rod 8 during sliding is reduced;

the axle end of the wheel 12 runs through the inner side of the bottom of the chair frame 1, the axle end of the wheel 12 is provided with a positioning groove 22, one end of a guide rod 13 is connected in the positioning groove 22, the other end of the guide rod 13 runs through the chair frame 1 and is fixed with a guide disc 14, the lateral side of the guide disc 14 runs through and is provided with a telescopic rod 15, the telescopic rod 15 is sleeved with a lantern ring 16, the outer side of the lantern ring 16 is fixed with a push rod 17, one end of the push rod 17 is connected with a shaft between the adjusting rods 18, the adjusting rods 18 are connected with the limiting grooves 19 in a sliding mode, the outer side of the adjusting rods 18 is attached to the inner wall of the limiting grooves 19, one end of the guide rod 13 is in a rectangular structural design, one end of the guide rod 13 is clamped with the positioning groove 22, when the chair frame 1 is pushed, the wheel 12 rotates along with the wheel 12, the wheel 12 drives the, under the limiting action of the limiting groove 19, the push rod 17 on the lantern ring 16 drives the adjusting rod 18 to slide in the limiting groove 19, the leg frame 21 is pushed to rotate on the chair frame 1 through the adjusting rod 18, the position of the telescopic rod 15 is changed in cooperation with continuous rotation of the guide disc 14, the adjusting rod 18 slides in the limiting groove 19 in a reciprocating mode, the spring 23 is matched in use, the leg frame 21 rotates on the chair frame 1 in a reciprocating mode, rehabilitation training is conducted on legs of a user, meanwhile, the guide rod 13 can move in the chair frame 1, the guide rod 13 is separated from the positioning groove 22, and therefore realization can be achieved, when the wheel 12 rotates, the movement of the leg frame 21 cannot be driven.

The working principle is as follows: when the wheelchair seat convenient for adjusting the position of the stress point is used, as shown in fig. 1-3, firstly, the stress point is adjusted according to the sitting posture of a user, the handle 4 on the outer side of the bottom plate 2 is manually rotated, the handle 4 and the belt 5 drive the screw 6 to rotate in the movable groove 7, the supporting rod 8 can be driven to slide in the movable groove 7, the stress point of the cushion 3 is adjusted by adjusting the position of the supporting rod 8, and meanwhile, when the supporting rod 8 slides in the movable groove 7, the guide ball 10 at the top of the supporting rod 8 is contacted with the bottom groove 11 to drive the guide ball 10 to rotate in the guide groove 9 and slide in the bottom groove 11, so that the friction force when the supporting rod 8 slides is reduced;

then, as shown in fig. 1 and fig. 3-5, when the chair frame 1 is pushed, the wheel 12 rotates along with the wheel, the wheel 12 drives the guide rod 13 to rotate through the positioning slot 22, the guide rod 13 drives the guide disk 14 to rotate, the guide disk 14 drives the telescopic rod 15 and the sleeve ring 16 to rotate, so that under the limiting action of the limiting slot 19, the push rod 17 on the sleeve ring 16 drives the adjusting rod 18 to slide in the limiting slot 19, and further the leg frame 21 is pushed by the adjusting rod 18 to rotate on the chair frame 1, and the position of the telescopic rod 15 is changed in coordination with the continuous rotation of the guide disk 14, so that the adjusting rod 18 slides in the limiting slot 19 in a reciprocating manner, and the leg frame 21 rotates in a reciprocating manner on the chair frame 1 in coordination with the use of the spring 23, to perform rehabilitation training on the legs of the user, and at the same time, the guide rod 13 can move in the chair frame 1, so that, the leg frame 21 is not moved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A seat for wheelchair convenient to carry out position control to stress point, includes chair frame (1), wheel (12) and leg (21), its characterized in that: the top of the chair frame (1) is fixed with a bottom plate (2), the bottom plate (2) is provided with a cushion (3), the outer side of the bottom plate (2) is connected with a handle (4) through a shaft, one end of the handle (4) penetrates through the bottom plate (2) and is connected with a screw rod (6) through a belt (5), the screw rod (6) is connected in a movable groove (7) through a shaft, the movable groove (7) is arranged at the top of the bottom plate (2), a supporting rod (8) is sleeved on the screw rod (6) through a thread, the top of the supporting rod (8) is provided with a guide groove (9), a guide ball (10) is placed in the guide groove (9), the top of the guide ball (10) is positioned in a bottom groove (11), the bottom groove (11) is arranged at the bottom of the cushion (3), the bottom edge of the chair frame (1) is connected with a wheel (12) through a shaft, the bottom of the bottom plate, and a limiting groove (19) is formed in the mounting rod (20), an adjusting rod (18) is placed in the limiting groove (19), one end of the adjusting rod (18) is located on the inner side of the leg frame (21), the top of the leg frame (21) is connected to the outer side of the chair frame (1) through a shaft, and a spring (23) is fixed between the leg frame (21) and the chair frame (1).

2. A wheelchair seat facilitating positional adjustment of a point of force of claim 1, wherein: the support rod (8) is connected with the movable groove (7) in a sliding mode, and the support rod (8) is parallel to the seat cushion (3).

3. A wheelchair seat facilitating positional adjustment of a point of force of claim 1, wherein: the guide balls (10) are rotatably connected with the guide grooves (9), and the guide grooves (9) are distributed on the support rod (8) at equal intervals.

4. A wheelchair seat facilitating positional adjustment of a point of force of claim 1, wherein: the axle head of wheel (12) runs through in the inboard of chair frame (1) bottom, and the axle head of wheel (12) has seted up constant head tank (22), and the one end of being connected with guide arm (13) in constant head tank (22), the other end of guide arm (13) runs through chair frame (1) and is fixed with guide disc (14), the avris of guide disc (14) runs through installs telescopic link (15), and the cover is equipped with lantern ring (16) on telescopic link (15) to the outside of lantern ring (16) is fixed with push rod (17), and the one end of push rod (17) is connected with adjusting the hub connection between pole (18) simultaneously.

5. A wheelchair seat facilitating positional adjustment of a point of force of claim 4, wherein: one end of the guide rod (13) is designed to be of a rectangular structure, and one end of the guide rod (13) is clamped with the positioning groove (22) mutually.

6. A wheelchair seat facilitating positional adjustment of a point of force of claim 1, wherein: the adjusting rod (18) is connected with the limiting groove (19) in a sliding mode, and the outer side of the adjusting rod (18) is attached to the inner wall of the limiting groove (19) mutually.