CN110623800B - Wheel chair - Google Patents

Abstract

The invention provides a wheelchair, comprising a chair frame, a lift platform is arranged on the chair frame, a turntable assembly is arranged on the lift platform, a connection plate is arranged on the turntable assembly, and the left and right sides of the connection plate are arranged with mutually parallel first guide rails, The first guide rail is parallel to the connecting plate, and a seat plate with a sliding block is erected on the first guide rail; the rear end of the connecting plate is hingedly connected with an angle-adjustable backrest frame, and the left and right sides of the front of the angle-adjustable backrest frame are provided with parallel first plates. Two guide rails; the left and right sides of the back frame of the angle-adjustable backrest are hinged with angle adjustment rods with multiple U-shaped bayonets, and the bottom side of the rear end of the connecting plate is provided with a clamping rod corresponding to the angle adjustment rod; the angle-adjustable backrest When the frame is rotated to the horizontal, the first guide rail and the second guide rail on the same side are aligned and collinear. Compared with the traditional wheelchair, the wheelchair of the present invention not only makes getting in and out of bed more convenient for the handicapped, but also has a simple structure and a certain application prospect.

Description

a wheelchair

technical field

The present invention relates to the technical field of wheelchairs, in particular, to a wheelchair.

Background technique

As a means of transportation, wheelchairs provide great convenience to the majority of people with disabilities. However, the existing ones either do not have the function of assisting getting in and out of bed, or they have the function of assisting getting in and out of bed, but they cannot be popularized due to the price. Therefore, we designed a wheelchair. It is very necessary to have a wheelchair that is simple in structure and convenient to use, and can facilitate people with disabilities to get on and off the bed.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide a wheelchair, which can assist the disabled to get on and off the bed while completing the basic walking function.

To achieve the above object, the present invention provides the following technical solutions:

A wheelchair includes a chair frame, a lifting platform is arranged on the chair frame, a turntable assembly is arranged on the lifting platform, a connecting plate is arranged on the turntable assembly, and the left and right sides of the connecting plate are arranged with parallel to each other. The first guide rail is parallel to the connecting plate, and a seat plate with a slider is erected on the first guide rail; the rear end of the connecting plate is hingedly connected with an angle-adjustable backrest frame, the angle The left and right sides of the front of the adjustable backrest frame are provided with second guide rails that are parallel to each other; the left and right sides of the back of the adjustable backrest frame are hinged with angle adjustment rods with a plurality of U-shaped bayonets. The bottom side of the end is provided with a clamping rod corresponding to the angle adjustment rod; when the angle adjustable backrest frame is rotated to the horizontal, the first guide rail and the second guide rail on the same side are aligned and collinear.

According to the wheelchair of the present invention, the chair frame is provided with a lifting platform, the lifting platform is provided with a turntable assembly, the turntable assembly is provided with a connecting plate, the left and right sides of the connecting plate are provided with mutually parallel first guide rails, and the first guide rail is connected with The plates are parallel, and a seat plate with a slider is set up on the first guide rail; the rear end of the connecting plate is hingedly connected with an angle-adjustable backrest frame, and the left and right sides of the front of the angle-adjustable backrest frame are provided with mutually parallel second guide rails; Angle adjustment rods with a plurality of U-shaped bayonets are hinged on the left and right sides of the back of the backrest frame, and the bottom side of the rear end of the connecting plate is provided with a clamping rod corresponding to the angle adjustment rod; when the angle-adjustable backrest frame is rotated to the horizontal , the first guide rail and the second guide rail on the same side are aligned and collinear.

Preferably, the lifting platform is a scissor lift, the scissor lift includes a bottom plate, a top plate and a scissor mechanism, the bottom plate is fixedly connected to the chair frame, and the turntable assembly is arranged on the top plate .

Preferably, the turntable assembly includes a fixed plate and a turntable, the fixed plate is fixedly connected to the top plate; the turntable is fixedly connected to the bottom surface of the connecting plate; the end surface of the fixed plate facing the connecting plate side A sinking cavity is arranged on the upper part, a bearing is arranged in the sinking cavity, and the rotating shaft of the turntable is arranged in the inner ring of the bearing.

Preferably, guide grooves are provided on the left and right sides of the first guide rail and the second guide rail, and the slider is a ball slider matched with the guide groove; the first guide rail is close to the A first pillar is arranged between one end of the angle-adjustable backrest and the connecting plate; a second pillar is arranged between one end of the second guide rail close to the first guide rail and the angle-adjustable backrest frame.

Preferably, the end surface of the first guide rail on the side close to the second guide rail is set as a lower inclined surface, and the end surface of the second guide rail on the side close to the first guide rail is set as an upper inclined surface matching the lower inclined surface .

Preferably, a groove with an upward opening is provided on the lower inclined surface of the first guide rail; a convex block matching the groove is provided on the upper inclined surface of the second guide rail.

Preferably, the left and right sides of the connecting plate are also provided with spring latches; the top plate is provided with latch holes corresponding to the spring latches, and the spring latches and the latch holes are used to lock or unlock the connection plate relative to the top plate.

Preferably, a support rod is provided at the top of the back of the angle-adjustable back frame.

Preferably, the left and right ends of the lower side of the angle-adjustable backrest frame are also provided with backrest locking holes, and the left and right sides of the rear end of the connecting plate are provided with first positioning holes corresponding to the backrest locking holes, so A first pin is inserted between the backrest locking hole and the first positioning hole.

Preferably, the front end of the connecting plate is provided with a leg bracket, the upper end of the leg bracket is hinged with the connecting plate, and the left and right sides of the upper end of the leg bracket are also provided with leg bracket locking holes, so The left and right sides of the connecting plate are provided with second positioning holes corresponding to the leg bracket locking holes, and a second latch is inserted between the leg bracket locking holes and the second positioning holes.

Compared with the existing wheelchair, the wheelchair of the present invention is simple in structure and convenient in operation, and can also realize the needs of assisting getting in and out of bed while meeting the basic walking function of the wheelchair, which will provide great convenience for the handicapped.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings.

Figure 1 is a schematic diagram of the overall structure of the Faming wheelchair;

2 is a schematic structural diagram of the leg support and the angle-adjustable backrest frame being adjusted to a horizontal state according to the present invention;

Fig. 3 is the left side view of the wheelchair of the present invention;

FIG. 4 is a schematic diagram of the rotation-stopping structure of the wheelchair connecting plate of the present invention;

5 is a schematic structural diagram of the wheelchair turntable assembly of the present invention;

FIG. 6 is a schematic view of the guide rail structure of the wheelchair of the present invention;

Among them: 1. Chair frame; 2. Scissor lift; 201. Bottom plate; 202. Top plate; 203. Scissor mechanism; cavity; 4. connecting plate; 401. first guide rail; 402. first pillar; 403. lower slope; 404. groove; 405. spring latch; 406. first positioning hole; 5. seat plate; 501. slider ;6. Angle adjustable back frame; 601. Second guide rail; 602. Guide groove; 603. Second pillar; 604. Upper slope; 605. Bump; 606. Support rod; . Angle adjustment rod; 8. Bearing; 9. First latch; 10. Leg bracket; 1001. Leg bracket locking hole; 1002. Second positioning hole; 11. Second latch.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Referring to Figures 1, 2 and 3, a wheelchair of the present invention is characterized in that it includes a seat frame 1, a lift platform is arranged on the chair frame 1, a turntable assembly 3 is arranged on the lift platform, and a connection is arranged on the turntable assembly 3 Plate 4, the left and right sides of the connecting plate 4 are provided with mutually parallel first guide rails 401, the first guide rail 401 is parallel to the connecting plate 4, and the first guide rail 401 is provided with a seat plate 5 with a slider; the rear end of the connecting plate 4 The angle-adjustable back frame 6 is hingedly connected, and the left and right sides of the front of the angle-adjustable back frame 6 are provided with mutually parallel second guide rails 601; the left and right sides of the back of the angle-adjustable back frame 6 are hinged with a plurality of U-shaped cards The angle adjustment rod 7 of the mouth, the bottom side of the rear end of the connecting plate 4 is provided with a clamping rod corresponding to the angle adjustment rod 7; when the angle adjustable backrest frame 6 is rotated to the horizontal, the first guide rail 401 on the same side and the second The rails 601 are aligned collinear.

In the above embodiment, the chair frame 1 is provided with a lift platform, the lift platform is provided with a turntable assembly 3, the turntable assembly 3 is provided with a connecting plate 4, and the left and right sides of the connecting plate 4 are provided with mutually parallel first guide rails 401 , the first guide rail 401 is parallel to the connecting plate 4, the first guide rail 401 is provided with a seat plate 5 with a slider; the rear end of the connecting plate 4 is hingedly connected with an angle-adjustable backrest frame 6, The two sides are provided with mutually parallel second guide rails 601; the left and right sides of the back of the angle-adjustable back frame 6 are hinged with angle-adjusting rods 7 with a plurality of U-shaped bayonets, and the bottom side of the rear end of the connecting plate 4 is provided with an angle The clamping rod corresponding to the adjustment rod 7; when the angle-adjustable back frame 6 is rotated to the horizontal, the first guide rail 401 and the second guide rail 601 on the same side are aligned and collinear.

1, 2 and 3, according to an embodiment of the present invention, the lifting platform is a scissor lift 2, the scissor lift 2 includes a bottom plate 201, a top plate 202 and a scissor mechanism 203, and the bottom plate 201 is fixedly connected to the chair On the rack 1 , the turntable assembly 3 is arranged on the top plate 202 .

In the above embodiment, the lifting platform is a scissor lift 2. The scissor lift 2 includes a bottom plate 201, a top plate 202 and a scissor mechanism 203. The bottom plate 201 is fixedly connected to the chair frame 1, and the turntable assembly 3 is arranged on the top plate 202. , the height adjustment of the seat plate 5 can be ensured by using the scissor lift 2 .

5, according to an embodiment of the present invention, the turntable assembly 3 includes a fixed plate 301 and a turntable 302, the fixed plate 301 is fixedly connected to the top plate 202; the turntable 302 is fixedly connected to the bottom surface of the connecting plate 4; the fixed plate 301 faces the connecting plate 4 A sinking cavity 303 is provided on the end surface of one side, a bearing 8 is arranged in the sinking cavity 303 , and the rotating shaft of the turntable 302 is arranged in the inner ring of the bearing 8 .

In the above embodiment, the turntable assembly 3 includes a fixed plate 301 and a turntable 302. The fixed plate 301 is fixedly connected to the top plate 202; the turntable 302 is fixedly connected to the bottom surface of the connecting plate 4; A sinking cavity 303 is provided on an end surface of one side of the connecting plate 4 , a bearing 8 is arranged in the sinking cavity 303 , and the rotating shaft of the turntable 302 is arranged in the inner ring of the bearing 8 .

Referring to FIGS. 1 , 2 and 6 , according to an embodiment of the present invention, guide grooves 602 are provided on the left and right sides of the first guide rail 401 and the second guide rail 601 , and the slider 501 is connected to the A ball slider matched with the guide groove 602; a first post 402 is arranged between one end of the first guide rail 401 close to the angle-adjustable back frame 6 and the connecting plate 4; the second guide rail 601 is close to the A second pillar 603 is disposed between one end of the first guide rail 401 and the angle-adjustable back frame 6 .

In the above embodiment, the left and right sides of the first guide rail 401 and the second guide rail 601 are provided with guide grooves 602 , and the slider is a ball slider 501 matched with the guide groove 602 ; A first pillar 402 is disposed between one end of the first guide rail 401 close to the angle-adjustable back frame 6 and the connecting plate 4 ; one end of the second guide rail 601 close to the first guide rail 401 and the angle A second pillar 603 is arranged between the adjustable backrest frames 6 .

Referring to FIG. 6 , according to an embodiment of the present invention, the end face of the first guide rail 401 on the side close to the second guide rail 601 is set as a lower inclined surface 403 , and the end face of the second guide rail 601 on the side close to the first guide rail 401 is set with the lower inclined surface 403 Matching upper bevel 604 .

In the above embodiment, the end surface of the first guide rail 401 on the side close to the second guide rail 601 is set as the lower inclined surface 403 , and the end surface of the second guide rail 601 on the side close to the first guide rail 401 is set as the upper inclined surface 604 matching the lower inclined surface 403 .

Referring to FIG. 6 , according to an embodiment of the present invention, a groove 404 with an upward opening is provided on the lower inclined surface 403 of the first guide rail 401 ; a convex block matching the groove 404 is provided on the upper inclined surface 604 of the second guide rail 601 605.

In the above embodiment, the lower inclined surface 403 of the first guide rail 401 is provided with a groove 404 with an upward opening; the upper inclined surface 604 of the second guide rail 601 is provided with a bump 605 matching the groove 404. The projections 605 and the grooves 404 are provided on the 604 and the lower inclined surface 403 , which can ensure the precision of the cooperation between the first guide rail 401 and the second guide rail 601 , thereby ensuring the continuity of the movement of the seat plate 5 .

4, according to an embodiment of the present invention, the left and right sides of the connecting plate 4 are also provided with spring latches 405; the top plate 202 is provided with latch holes 204 corresponding to the spring latches 405, and the spring latches 405 and the latch holes 204 are used for The relative positions of the connecting plate 4 and the top plate 202 are locked or unlocked.

In the above embodiment, the left and right sides of the connection plate 4 are also provided with spring latches 405; the top plate 202 is provided with latch holes 204 corresponding to the spring latches 405, and the spring latches 405 and the latch holes 204 are used to lock or unlock the connection plate 4. In the relative position to the top plate 202, by arranging the spring latch 405 and the latch hole 204, it can be ensured that the seat plate 5 of the wheelchair does not rotate.

Referring to FIG. 1 and FIG. 2 , according to an embodiment of the present invention, a support rod 606 is provided at the top end of the back of the angle-adjustable backrest frame 6 .

In the above embodiment, when the angle-adjustable back frame 6 is adjusted to be horizontal, the seat panel 5 will move on the first guide rail 401 and the second guide rail 601 , and the sliding process of the seat panel 5 is better ensured by providing the support rod 606 stability.

2 and 3, according to an embodiment of the present invention, the left and right ends of the lower side of the adjustable angle backrest frame 6 are also provided with backrest locking holes 607, and the left and right sides of the rear end of the connecting plate 4 are provided with backrest locking holes. 607 corresponds to the first positioning hole 406 , and a first latch 9 is inserted between the backrest locking hole 607 and the first positioning hole 406 .

In the above embodiment, the left and right ends of the lower side of the angle-adjustable backrest frame 6 are also provided with backrest locking holes 607 , and the left and right sides of the rear end of the connecting plate 4 are provided with first positioning holes 406 corresponding to the backrest locking holes 607 . , a first latch 9 is inserted between the backrest locking hole 606 and the first positioning hole 406. By setting the backrest locking hole 607, it can ensure that the angle-adjustable backrest frame 6 is hinged with the connecting plate 4 when it is adjusted to a horizontal state. Stability, can enhance the stiffness of the hinge.

1, 2 and 3, according to an embodiment of the present invention, the front end of the connecting plate 4 is provided with a leg bracket 10, the upper end of the leg bracket 10 is hinged with the connecting plate 4, and the left and right sides of the upper end of the leg bracket 10 are hinged. The side is also provided with a leg bracket locking hole 1001, the left and right sides of the connecting plate 4 are provided with a second positioning hole 1002 corresponding to the leg bracket locking hole 1001, the leg bracket locking hole 1001 and the second positioning hole A second pin 11 is interspersed between the 1002 .

In the above embodiment, the front end of the connecting plate 4 is provided with a leg bracket 10, the upper end of the leg bracket 10 is hinged with the connecting plate 4, and the left and right sides of the upper end of the leg bracket 10 are also provided with leg bracket locking holes 1001, The left and right sides of the connecting plate 4 are provided with second positioning holes 1002 corresponding to the leg bracket locking holes 1001, and a second latch 11 is interspersed between the leg bracket locking holes 1001 and the second positioning holes 1002. A leg bracket locking hole 1001 is provided at the upper end of the leg bracket 10 to ensure the stability when the leg bracket 10 is adjusted to a horizontal position with the seat plate 5 .

Specific implementation process:

The caregiver does the following after pushing the wheelchair to the bedside:

In the first step, the scissor lift 2 is controlled by remote control to rise until the seat plate 5 is parallel to the bed surface, and the angle adjustable backrest frame 6 is leveled by moving the angle adjustment rod 7. The first guide rail 401 and the second guide rail 601 are located The end faces are aligned on the same horizontal plane, and the backrest locking holes 607 provided at the left and right ends of the lower side of the angle-adjustable backrest frame 6 are aligned with the first positioning holes 406 at the left and right ends of the rear end of the connecting plate 4, and the first latch 9 is inserted;

In the second step, lift the leg bracket 10, and insert the second latch 11 when the leg bracket locking hole 1001 and the second positioning hole 1002 are aligned;

In the third step, pull out the spring latch 405, rotate the seat plate 5 until the angle-adjustable backrest frame 6 is completely overlapped with the bed surface, the nursing staff slides the seat plate 5 from the first guide rail 401 to the second guide rail 601, and then the patient Move up and down from the seat plate 5 to complete the process of assisting getting into bed;

When the patient gets out of bed, he only needs to move the patient to the seat plate 5, and the nursing staff pushes the seat plate 5 to move the seat plate 5 from the second guide rail 601 to the first guide rail 401, and then the angle-adjustable backrest frame 6 and the legs are moved. The upper bracket 10 is restored to the original position, and the spring latch 405 is inserted to complete the process of the patient getting out of bed.

Claims (9)

1. The wheelchair is characterized by comprising a chair frame (1), wherein a lifting platform is arranged on the chair frame (1), a turntable assembly (3) is arranged on the lifting platform, a connecting plate (4) is arranged on the turntable assembly (3), first guide rails (401) which are parallel to each other are arranged on the left side and the right side of the connecting plate (4), the first guide rails (401) are parallel to the connecting plate (4), and a seat plate (5) with a sliding block (501) is erected on the first guide rails (401); the rear end of the connecting plate (4) is hinged with an angle-adjustable backrest frame (6), and the left side and the right side of the front surface of the angle-adjustable backrest frame (6) are provided with second guide rails (601) which are parallel to each other; the left side and the right side of the back surface of the angle-adjustable backrest frame (6) are hinged with angle adjusting rods (7) with a plurality of U-shaped bayonets, and the bottom side of the rear end of the connecting plate (4) is provided with clamping rods corresponding to the angle adjusting rods (7); when the angle-adjustable backrest frame (6) rotates to the horizontal position, the first guide rail (401) and the second guide rail (601) which are positioned at the same side are aligned and collinear;

guide grooves (602) are formed in the left side and the right side of the first guide rail (401) and the second guide rail (601), and the sliding block (501) is a ball sliding block matched with the guide grooves (602); a first support column (402) is arranged between one end, close to the angle-adjustable backrest frame (6), of the first guide rail (401) and the connecting plate (4); a second strut (603) is arranged between one end, close to the first guide rail (401), of the second guide rail (601) and the angle-adjustable backrest frame (6).

2. The wheelchair of claim 1 wherein: the lifting platform is a scissor lift (2), the scissor lift (2) comprises a bottom plate (201), a top plate (202) and a scissor mechanism (203), the bottom plate (201) is fixedly connected to the chair frame (1), and the turntable assembly (3) is arranged on the top plate (202).

3. The wheelchair of claim 2 wherein: the turntable assembly (3) comprises a fixed disc (301) and a turntable (302), and the fixed disc (301) is fixedly connected with the top plate (202); the rotary table (302) is fixedly connected with the bottom surface of the connecting plate (4); the end face, facing one side of the connecting plate (4), of the fixed disc (301) is provided with a sinking cavity (303), a bearing (8) is arranged in the sinking cavity (303), and a rotating shaft of the rotary table (302) is arranged in an inner ring of the bearing (8).

4. The wheelchair of claim 1 wherein: the end face of one side, close to the second guide rail (601), of the first guide rail (401) is set to be a lower inclined face (403), and the end face of one side, close to the first guide rail (401), of the second guide rail (601) is set to be an upper inclined face (604) matched with the lower inclined face (403).

5. The wheelchair of claim 4 wherein: a groove (404) with an upward opening is formed in the lower inclined surface (403) of the first guide rail (401); and a projection (605) matched with the groove (404) is arranged on the upper inclined surface (604) of the second guide rail (601).

6. A wheelchair in accordance with claim 3, wherein: spring bolts (405) are further arranged on the left side and the right side of the connecting plate (4); bolt holes (204) corresponding to the spring bolts (405) are formed in the top plate (202), and the spring bolts (405) and the bolt holes (204) are used for locking or unlocking the relative positions of the connecting plate (4) and the top plate (202).

7. The wheelchair of claim 1 wherein: the top end of the back surface of the angle-adjustable backrest frame (6) is provided with a support rod (606).

8. The wheelchair of claim 1 wherein: the left end and the right end of the lower side of the angle-adjustable backrest frame (6) are further provided with backrest locking holes (607), the left side and the right side of the rear end of the connecting plate (4) are provided with first positioning holes (406) corresponding to the backrest locking holes (607), and first bolts (9) are arranged between the backrest locking holes (607) and the first positioning holes (406) in an inserting mode.

9. The wheelchair of claim 1 wherein: the front end of connecting plate (4) is provided with shank support (10), the upper end of shank support (10) with connecting plate (4) are articulated, the left and right sides of shank support (10) upper end still is provided with shank support locking hole (1001), the left and right sides of connecting plate (4) be provided with corresponding second locating hole (1002) in shank support locking hole (1001), shank support locking hole (1001) with second bolt (11) have been arranged in the interlude between second locating hole (1002).

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