Wheelchair for easy access

Abstract

The utility model discloses a wheelchair convenient to ride and use, two side supports of car frame main part are opposite arrangement, and the seat plate support is installed on the upper portion of two side supports, and the handrail support front and rear two ends are connected with side support front and rear two ends respectively, and the handrail support and side support form the joint at the front end and form the rotary connection at the rear end, and after the front end joint is removed, the handrail support is turned over to the rear with the rotary connection point of rear end as the center. The utility model has the advantages that: the handrail support can be turned over to the rear, the wheelchair side is not blocked by the handrail support, and it is convenient for the person to ride to sit on the seat plate in the body lateral attitude from the wheelchair side, compared with when sitting from the front side of the wheelchair, the body turning amplitude is small, the joint connection of the handrail support front end and side support front end can keep reliable connection and also can conveniently remove the joint, and the fixed connection of the handrail support rear end and side support rear end forms the rotary connection, and also can form the joint and rotary connection.

Description

Technical Field

[0001] This utility model relates to wheelchairs, and more particularly to a wheelchair that is easy for passengers to use. Background Technology

[0002] Wheelchairs are a means of transportation for people with mobility impairments. Some users find it particularly difficult to take their first steps or move around. Even when they reach the wheelchair with the help of others, they still face the challenge of turning around and sitting down on their own. Therefore, wheelchairs need to be further improved to meet the needs of special groups of people. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide a wheelchair that meets the user's needs for easy seating.

[0004] Technical solution: A wheelchair that is easy to use includes a frame body with side supports, armrest supports, and a seat support. The two side supports are arranged opposite each other. The seat support is installed on the upper part of the two side supports. The front and rear ends of the armrest support are respectively connected to the front and rear ends of the side supports. The armrest support and the side supports form a snap-fit ​​connection at the front end and a rotatable connection at the rear end. After the front snap-fit ​​is released, the armrest support flips backward with the rotatable connection point at the rear end as the center.

[0005] Furthermore, a vertical positioning tube is provided at the front end of the side support. The lower end of the vertical tube A at the front end of the handrail support extends into the opening at the upper end of the positioning tube. A snap-fit ​​plate is provided on the outer wall of the vertical tube A. The snap-fit ​​plate is fixed to the wall of the vertical tube A at a position along its length by a positioning pin. The upper part of the snap-fit ​​plate is inclined relative to the lower part. A hook-shaped body is provided at the lower end of the snap-fit ​​plate. A positioning inclined surface is provided on the outside of the positioning tube. The hook-shaped body snaps into the positioning inclined surface. Pressing the upper part of the snap-fit ​​plate toward the vertical tube A causes the lower part of the snap-fit ​​plate to swing outward away from the vertical tube A, thereby disengaging the hook-shaped body from the positioning inclined surface and releasing the snap-fit.

[0006] Ideally, the snap-fit ​​plate is a rigid plastic part with a certain strength and elasticity, so that when pressed, the lower part of the snap-fit ​​plate swings outward to release the snap-fit ​​and reset to form an effective connection.

[0007] Furthermore, the lower end of the vertical tube B at the rear end of the handrail bracket is rotatably connected to the rear end of the side bracket by a pivot pin. The front end of the handrail bracket is snapped into the front end of the side bracket, and the handrail bracket can be flipped backward around the rotatable connection point at the rear end, maintaining the connection between the handrail bracket and the side bracket.

[0008] Furthermore, a mounting base is provided between the lower end of the vertical tube B and the side bracket. The mounting base includes a fixed base, a connecting rod, an elastic tension pin, and a fixing pin. The fixed base has a vertical groove and a horizontal groove. The lower part of the fixed base is fixed to the rear end of the side bracket by a fixing pin passing laterally through it, and the fixing pin passes laterally through the vertical groove. The connecting rod is inserted into the vertical groove, and the lower end of the connecting rod has a U-shaped groove with an opening facing downwards. Inside the fixed base, the horizontal fixing pin is located in the U-shaped groove. The upper end of the connecting rod extends out of the fixed base, and the upper end of the connecting rod is rotatably connected to the lower end of the vertical tube B by a pivot pin passing laterally through it. The elastic tension pin passes through the horizontal groove to connect the fixed base and the connecting rod. The rear end of the handrail bracket and the rear end of the side bracket are snap-fitted together. In addition to being able to flip backward with the rear rotation connection point as the center, the handrail bracket and the side bracket can also be quickly disassembled and separated.

[0009] Furthermore, a positioning post matching the U-shaped groove is provided at the bottom of the vertical groove. The positioning post is located below the horizontal fixing pin, and the horizontal fixing pin is located between the top of the positioning post and the bottom of the U-shaped groove. This helps to maintain the relative stability of the assembly between the connecting rod and the fixing seat.

[0010] Furthermore, the side bracket is bolted to the rear wheel, and at least two sleeves are provided on the side bracket along the height direction, through which the bolts are inserted for fixation. By selecting sleeves of different heights, the overall height of the vehicle frame relative to the ground can be adjusted.

[0011] Furthermore, the side bracket is fixedly installed with the clamp arm support of the front wheel.

[0012] Beneficial effects: The advantages of this utility model are: the armrest support can be flipped backward, and there is no armrest support blocking the side of the wheelchair, making it convenient for the passenger to sit on the seat from the side of the wheelchair in a side-facing posture. Compared with sitting from the front of the wheelchair, the body turning range is smaller. The snap-fit ​​connection between the front end of the armrest support and the front end of the side support can maintain a reliable connection and facilitate the release of the snap-fit. The fixed connection between the rear end of the armrest support and the rear end of the side support can form a rotatable connection, or a snap-fit ​​and rotatable connection. While maintaining the ability of the armrest support to flip backward, it also allows for quick removal and separation of the armrest support from the side support. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the wheelchair structure in Example 1;

[0014] Figure 2 for Figure 1 A diagram illustrating the backward flipping of the handrail;

[0015] Figure 3 for Figure 1 Schematic diagram showing the connection between the front end of the center armrest support and the front end of the side support;

[0016] Figure 4 for Figure 1 Schematic diagram showing the connection between the rear end of the center armrest support and the rear end of the side support;

[0017] Figure 5 for Figure 3 , 4 Side view and schematic diagram of the connection between the rear wheel and the side bracket;

[0018] Figure 6 This is a schematic diagram of the wheelchair structure in Example 2;

[0019] Figure 7 for Figure 6 Schematic diagram showing the connection between the rear end of the center armrest support and the rear end of the side support;

[0020] Figure 8 for Figure 7 Exploded view of the mounting base;

[0021] Figure 9 for Figure 7 Assembly sectional view of the mounting base. Detailed Implementation

[0022] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] A wheelchair that is easy to use, as shown in the attached image. Figure 1 , 2 As shown, the vehicle includes a frame body, which has side supports 1, armrest supports 2, and seat supports 3. The two side supports 1 are arranged opposite each other, and the seat supports 3 are installed on the upper part of the two side supports 1. Each side support 1 is equipped with an armrest support 2. The front and rear ends of the armrest support 2 are connected to the front and rear ends of the side support 1, respectively. The front end of the armrest support 2 is engaged with the front end of the side support 1, and the rear end of the armrest support 2 is rotatably connected to the rear end of the side support 1. After the front engagement is released, the armrest support 2 flips backward with the rotatable connection point at the rear end as the center. At this time, there is no armrest support blocking the side of the wheelchair, and the passenger can sit on the seat from the side of the wheelchair in a side-facing posture. Compared with sitting from the front of the wheelchair, the range of body turning is smaller.

[0025] Appendix Figure 3 , 5The diagram shows the snap-fit ​​connection structure formed between the front end of the handrail bracket 2 and the front end of the side bracket 1. A vertical positioning tube 4 is provided at the front end of the side bracket 1, with an opening at its upper end. The lower end of the vertical tube A21 at the front end of the handrail bracket 2 extends into this opening. A snap-fit ​​plate 22 is provided on the outer wall of the vertical tube A21. The snap-fit ​​plate 22 is fixed to the wall of the vertical tube A21 at a certain position along its length by a positioning pin 23. The upper part of the snap-fit ​​plate 22 is inclined relative to its lower part, with the inclination direction being towards the vertical tube A from the positioning pin. The lower part of the snap-fit ​​plate 22 is connected to the vertical tube... When the length of the clamping plate 22 is parallel, pressing down on the upper part of the clamping plate 22 allows it to swing up and down to a certain extent with the positioning pin 23 as a fixed point. A hook-shaped body 221 is provided at the lower end of the clamping plate 22, and a positioning slope 41 is provided on the outside of the positioning tube 4. The hook-shaped body 221 engages with the positioning slope 41. Pressing down on the upper part of the clamping plate 22 towards the vertical tube A21 causes the lower part of the clamping plate 22 to swing outward away from the vertical tube A21, thus disengaging the hook-shaped body 221 from the positioning slope 41 and releasing the clamping connection. The clamping plate 22 is made of rigid plastic, possessing a certain strength and elasticity to facilitate the outward swinging of the lower part of the clamping plate during pressing, releasing the clamping connection and resetting to form an effective connection.

[0026] Appendix Figure 4 , 5 The diagram shows the rotating connection structure formed between the rear end of the handrail bracket 2 and the rear end of the side bracket 1. The lower end of the vertical tube B24 at the rear end of the handrail bracket is connected to the rear end of the side bracket 1 by a horizontally inserted pin 5. When the locking connection between the front end of the handrail bracket 2 and the front end of the side bracket 1 is released, the handrail bracket 2 flips backward around the pin 5.

[0027] The connection structure between the rear wheel 7 and the side bracket 1 is shown in the attached figure. Figure 5 As shown, at least two sleeves 11 are provided on the side bracket 1 along the height direction. Bolts 8 are inserted through the sleeves 11 and connected to the rear wheel 7, and the bolts 8 are fixed to the sleeves 11. By selecting sleeves 11 of different heights for connection, the overall height of the frame body relative to the ground can be adjusted.

[0028] The connection structure between the front wheel 9 and the side bracket 1 is shown in the attached figure. Figure 1 As shown, the clamp arm support 91 of the front wheel 9 is fixedly installed to the side bracket 1 by welding or other means.

[0029] Example 2

[0030] The difference from Embodiment 1 is that the rear end of the handrail bracket 2 and the rear end of the side bracket 1 form a snap-fit ​​and rotational connection. Not only does the handrail bracket 2 flip backward with the rotational connection point at the rear end as the center after the front snap-fit ​​is released, but the handrail bracket 2 also separates from the side bracket 1 after the front and rear snap-fits are released.

[0031] Appendix Figures 6-9The diagram shows the snap-fit ​​and rotatable connection structure between the rear end of the handrail bracket 2 and the rear end of the side bracket 1. A mounting base 6 is also provided between the lower end of the vertical tube B24 and the side bracket 1. The mounting base 6 includes a fixed base 61, a connecting rod 62, an elastic tension pin 63, and a fixing pin 64. A vertical groove 611 is formed inside the fixed base 61, with its upper end reaching the top surface of the fixed base 61. The connecting rod 62 is inserted downwards into the vertical groove 611 from the top surface of the fixed base 61. A U-shaped groove 621 with an opening facing downwards is formed at the lower end of the connecting rod 62. A positioning post 613 matching the U-shaped groove 621 is provided at the bottom of the vertical groove 611. The lower part of the fixed base 61 is horizontally fixed to the rear end of the side bracket 1 by the fixing pin 64, which passes horizontally through the vertical groove 611. Inside the fixed base 61, the positioning post 613 is located below the horizontal fixing pin 64. A horizontal fixing pin 64 is positioned between the top of the positioning post 613 and the bottom of the U-shaped groove 621. The upper end of the connecting rod 62 extends out of the fixing seat 61, and the upper end of the connecting rod 62 is rotatably connected to the lower end of the vertical tube B24 by a pivot pin 5. A horizontal groove 612 is provided in the fixing seat 61, which is above the position where the fixing pin 64 passes and intersects with the vertical groove 611. An elastic tension pin 63 passes through the horizontal groove 612 to connect the fixing seat 61 and the connecting rod 62. A positioning horizontal groove is also provided on the connecting rod 62 to connect with the elastic tension pin 63. Pressing the elastic tension pin 63 causes it to disengage from the connecting rod 62 and retract into the part of the horizontal groove 612 that does not intersect with the vertical groove 611, thus releasing the snap connection between the rear end of the handrail bracket 2 and the rear end of the side bracket 1. The handrail bracket 2 can then be lifted upwards to separate it from the side bracket 1.

Claims

1. A wheelchair that is easy to use, characterized in that: The frame body includes a side bracket (1), an armrest bracket (2), and a seat bracket (3). The two side brackets (1) are arranged opposite each other. The seat bracket (3) is installed on the upper part of the two side brackets (1). The front and rear ends of the armrest bracket (2) are respectively connected to the front and rear ends of the side bracket (1). The armrest bracket (2) and the side bracket (1) form a snap-fit ​​at the front end and a rotatable connection at the rear end. After the front snap-fit ​​is released, the armrest bracket (2) flips backward with the rotatable connection point at the rear end as the center. The side bracket (1) has a vertical positioning tube (4) at its front end. The lower end of the vertical tube A (21) at the front end of the handrail bracket (2) extends into the opening at the upper end of the positioning tube (4). A snap-fit ​​plate (22) is provided on the outer wall of the vertical tube A (21). The snap-fit ​​plate (22) is fixed to the wall of the vertical tube A (21) at one position along its length by a positioning pin (23). The upper part of the snap-fit ​​plate (22) is inclined relative to the lower part. A hook-shaped body (221) is provided at the lower end of the snap-fit ​​plate (22). A positioning inclined surface (41) is provided on the outside of the positioning tube (4). The hook-shaped body (221) snaps into the positioning inclined surface (41). Pressing the upper part of the snap-fit ​​plate (22) toward the vertical tube A (21) causes the lower part of the snap-fit ​​plate (22) to swing outward away from the vertical tube A (21). Then the hook-shaped body (221) disengages from the positioning inclined surface (41) and the snap-fit ​​is released. The lower end of the vertical tube B (24) at the rear end of the handrail bracket (2) is rotatably connected to the rear end of the side bracket (1) by a pivot pin (5). A mounting base (6) is also provided between the lower end of the vertical pipe B (24) and the side bracket (1). The mounting base (6) includes a fixed base (61), a connecting rod (62), an elastic tension pin (63), and a fixing pin (64). The fixed base (61) has a vertical groove (611) and a horizontal groove (612). The lower part of the fixed base (61) is fixed to the rear end of the side bracket (1) by a fixing pin (64) which passes horizontally through it. The fixing pin (64) passes horizontally through the vertical groove (611). The connecting rod (62) is inserted into the vertical groove (611). The lower end of the connecting rod (62) has a U-shaped groove (621) with an opening facing downwards. Inside the fixed base (61), the horizontal groove (621) is... The fixing pin (64) is located in the U-shaped groove (621), the upper end of the connecting rod (62) extends out of the fixing seat (61), and the upper end of the connecting rod (62) and the lower end of the vertical tube B (24) are connected by the shaft pin (5) to form a rotatable connection; the elastic tension pin (63) passes through the horizontal groove (612) to connect the fixing seat (61) and the connecting rod (62); the bottom of the vertical groove (611) is provided with a positioning post (613) that matches the U-shaped groove (621), the positioning post (613) is located below the horizontal fixing pin (64), and the horizontal fixing pin (64) is located between the top of the positioning post (613) and the bottom of the U-shaped groove (621).

2. The wheelchair for easy use according to claim 1, characterized in that: The snap-fit ​​plate (22) is a rigid plastic part.

3. The wheelchair for easy use according to claim 1, characterized in that: The side bracket (1) is connected to the rear wheel (7) by bolts (8). At least two sleeves (11) are provided on the side bracket (1) along the height direction, and the bolts (8) are fixed by passing through the sleeves (11).

4. The wheelchair for easy use according to claim 1, characterized in that: The side bracket (1) is fixedly installed with the clamp arm support (91) of the front wheel (9).

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