Wheelchair

Abstract

The utility model discloses a wheelchair and relates to the technical field of wheelchairs. The wheelchair comprises a wheelchair frame, and connecting sleeves are arranged on the two sides of the front end of the wheelchair frame respectively. A pedal structure is detachably assembled on the connecting sleeve; the pedal structure is a connecting rod composed of a transverse rod, an inclined rod and a shaft rod, and a pedal is connected to the connecting rod. A plurality of ribs are arranged on one surface of the pedal, and an arc-shaped groove for supporting legs is formed in the other surface of the pedal in the length direction. According to the wheelchair, the detachable pedal structures are arranged at the front end of the wheelchair, the pedal structures are controlled to be alternately installed when the wheelchair is used, the upper surface and the lower surface of the pedal are controlled to be exchanged, and then the functions of the pedal structures are switched; during use, the lower limbs of a patient can be lifted through the pedal structure according to requirements, or the lower limbs of the patient can be kept to naturally fall down and be put on the pedal structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheelchairs, and particularly relates to a wheelchair. Background Art

[0002] A wheelchair is an important rehabilitation tool. It is not only a means of transportation for the physically disabled, but more importantly, it enables them to exercise their bodies and participate in social activities with the help of a wheelchair. For example, CN206642010U discloses a wheelchair, which includes: a base, a backrest, a footrest, armrests, front wheels, rear wheels, brakes, and a handle; the footrest in this device is only suitable for supporting the patient's feet, but in the orthopedic department, patients with lower limb fractures need to sit in a wheelchair. When sitting on the existing wheelchair, the lower limbs will hang down, which does not meet the requirement of the patient to raise the lower limbs. Content of the Utility Model

[0003] The purpose of the utility model is to provide a wheelchair, which solves the problems raised in the existing background art by setting a detachable footrest structure at the front end of the wheelchair and controlling the alternate installation of the footrest structure and the exchange of the upper and lower surfaces of the pedal during use to switch the functions of the footrest structure.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] The utility model is a wheelchair, including a wheelchair, and a footrest structure is arranged at the front end of the wheelchair; the wheelchair includes a wheelchair frame, and connecting sleeves are respectively arranged on both sides at the front end of the wheelchair frame; the footrest structure is detachably assembled on the connecting sleeves; a rectangular jack is arranged at the end of the connecting sleeve, and limiting holes are arranged on both the upper and lower sides at the end of the rectangular jack, and a locking bolt is arranged on the connecting sleeve;

[0006] The footrest structure includes a T-shaped connecting block inserted into the rectangular jack, one end of the T-shaped connecting block is connected with a cross bar, the end of the cross bar is connected with an inclined bar, the end of the inclined bar is connected with a shaft rod, and a pedal is connected to the shaft rod; a plurality of convex ribs are arranged on one surface of the pedal, and an arc-shaped groove for supporting the leg is arranged along the length direction on the other surface of the pedal.

[0007] Furthermore, the cross bar, the inclined bar, and the shaft rod are integrally formed, the included angle between the cross bar and the inclined bar is ɑ, the included angle between the inclined bar and the shaft rod is β, and ɑ > β.

[0008] Furthermore, ɑ is between 115° - 135°, and β is between 95° - 120°.

[0009] Further, table board assemblies are rotatably arranged on the armrests on both sides of the wheelchair frame; each table board assembly includes a rotating sleeve rotatably arranged on the armrest, a side plate is arranged on an outer side wall of the rotating sleeve, and a table board is connected to the side plate.

[0010] Further, a rotating column is arranged on one surface of the side plate, a rotating hole cooperating with the rotating column is arranged on one side of the end face of the table board, and pin holes A are respectively arranged on the end faces of the table board on both sides of the rotating hole; a pin rod mechanism A cooperating with the pin hole A is arranged on the side plate on one side of the rotating column; the pin rod mechanism A includes a groove recessed upward on the bottom surface of the side plate, a through hole is arranged on the bottom side surface of the groove, a movable plate is connected to the bottom side surface of the groove through a spring, a control rod is connected to one surface of the movable plate, and a pin rod passing through the through hole and inserted into the pin hole A is connected to the other surface.

[0011] Further, a pin hole B is arranged on the other side of the end face of the table board, a pin rod mechanism B cooperating with the pin hole B is arranged on the side plate, and the pin rod mechanism B has the same structure as the pin rod mechanism A.

[0012] Further, a limiting mechanism for limiting the vertically arranged table board is arranged on the wheelchair frame on one side of the armrest, the limiting mechanism includes a fixed sleeve connected to the wheelchair frame, a rotating column is rotatably connected in the fixed sleeve, and a limiting clamping plate pressing against the outer side wall of the table board is arranged at the end of the rotating column.

[0013] The utility model has the following beneficial effects:

[0014] By arranging a detachable footrest structure at the front end of the wheelchair, and alternately installing the footrest structure and controlling the upper and lower surfaces of the pedal to be exchanged during use, the function of the footrest structure is switched, so that the lower limbs of the patient can be lifted according to the needs during use, or the lower limbs of the patient can be kept hanging naturally and placed on the footrest structure.

[0015] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of the wheelchair structure of the present utility model Figure 1 ;

[0018] Figure 2 Schematic diagram of the footrest structure of the present utility model;

[0019] Figure 3 Schematic diagram of the structure of the present utility model Figure 2 ;

[0020] Figure 4 Schematic diagram of the structure of the present utility model Figure 3 ;

[0021] Figure 5 Schematic diagram of the structure of the present utility model Figure 4 ;

[0022] Figure 6 Schematic diagram of the connecting sleeve structure of the present utility model;

[0023] Figure 7 Schematic diagram of the table board assembly structure of the present utility model;

[0024] Figure 8 is Figure 7 front view of;

[0025] Figure 9 is Figure 8 sectional view taken along line A - A in;

[0026] Figure 10 is Figure 9 partial enlarged view at A in. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0028] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0029] Please refer to Figures 1 - 5 as shown. The present utility model is a wheelchair, and the wheelchair includes a wheelchair frame 1, and a footrest structure 2 is detachably connected to both sides of the front end of the wheelchair frame 1 through the provided connecting sleeves 10, as Figures 1 - 5As shown, during use, after disassembling and swapping the positions of the footrest structures 2 located on both sides of the wheelchair frame 1, the footrest structure 2 can be switched from the state shown in Figure 1 to the state shown in Figures 2 - 4 ; in order to facilitate the footrest structure 2 to support the leg position in states such as Figure 2 , 4 and the state shown in 5, and to facilitate the footrest structure 2 to support the foot position in the state shown in 1, the footrest structure 2 provided in this application includes a pedal 23, and a plurality of convex ribs 231 are provided on one surface of the pedal 23, and an arc-shaped groove 232 for supporting the leg is provided on the other surface of the pedal 23 along the length direction.

[0030] Of course, in the above, in order to facilitate the installation and disassembly of the footrest structure 2, and thus facilitate the adjustment of the installation position and installation method of any footrest structure 2, such as Figure 3 and 6 , that is, a rectangular jack 101 is provided at the end of the connecting sleeve 10 in this application, limiting holes 102 are provided on both the upper and lower sides of the end of the rectangular jack 101, and a locking bolt 103 is provided on the connecting sleeve 10; at the same time, the footrest structure 2 includes a T-shaped connecting block 24 inserted into the rectangular jack 101, one end of the T-shaped connecting block 24 is connected to a cross bar 20, the end of the cross bar 20 is connected to an inclined bar 21, the end of the inclined bar 21 is connected to a shaft rod 22, and the shaft rod 22 is connected to a pedal 23; thus, by using the above settings, it is convenient to install and disassemble the footrest structure 2 during use.

[0031] Based on the above, the cross bar 20, the inclined bar 21, and the shaft rod 22 are integrally formed, the included angle between the cross bar 20 and the inclined bar 21 is 120°, the included angle between the inclined bar 21 and the shaft rod 22 is 110°, and at the same time during use, the included angle between the two surfaces of the pedal 23 is about 10°. Thus, when the arc-shaped groove 232 is located on the upper surface during the above use, the support surface formed by the arc-shaped groove 232 is in a slightly upward inclined state as a whole, that is, the support surface formed by the arc-shaped groove 232 gradually rises from the direction away from the wheelchair frame 1.

[0032] Similarly, in order to facilitate dining or other needs, table board assemblies 3 are rotatably provided on the armrests on both sides of the wheelchair frame 1 in this application; the table board assembly 3 includes a rotating sleeve 30 rotatably provided on the armrest, a side plate 31 is provided on one outer side wall of the rotating sleeve 30, and a table board 32 is connected to the side plate 31.

[0033] Based on the above requirements, during dining, it is necessary to control the table board assembly 3 in the state shown in Figure 4 , and when not needed, to control the table board assembly 3 in the state shown in Figure 5 ; such as Figures 7 - 10As shown in the figure, a rotating column 310 is provided on one surface of the side plate 31 of the present application. A rotating hole 320 that cooperates with the rotating column 310 is provided on one side of the end face of the table board 32. Pin holes A321 are respectively provided on the end faces of the table board 32 on both sides of the rotating hole 320. A pin rod mechanism A that cooperates with the pin hole A321 is provided on the side plate 31 on one side of the rotating column 310. The pin rod mechanism A includes a groove 311 that is recessed upward on the bottom surface of the side plate 31. A through hole 312 is provided on the bottom side surface of the groove 311. The bottom side surface of the groove 311 is connected to a movable plate 314 through a spring 313. One surface of the movable plate 314 is connected to a control rod 316, and the other surface is connected to a pin rod 315 that passes through the through hole 312 and is inserted into the pin hole A321. A pin hole B322 is provided on the other side of the end face of the table board 32. A pin rod mechanism B that cooperates with the pin hole B322 is provided on the side plate 31. The pin rod mechanism B and the pin rod mechanism A have the same structure.

[0034] As Figure 5 shown, in order to control the vertical table board 32 to remain stable, a limiting mechanism for limiting the vertical table board 32 is provided on the wheelchair frame 1 on the side of the armrest. The limiting mechanism includes a fixed sleeve 11 connected to the wheelchair frame 1. A rotating column is rotatably connected inside the fixed sleeve 11. A limiting clamping plate 12 that abuts against the outer side wall of the table board 32 is provided at the end of the rotating column.

[0035] At the same time, as Figure 4 shown, in order to control the table board 32 to be in a horizontal state, at this time, the table board 32 needs to be supported, that is, a support block 13 is provided on the armrest. After the table board 32 is controlled to be flipped to a horizontal state, the ground of the table board 32 abuts against the support block 13 at this time.

[0036] In the description of this specification, the description with reference to terms such as "an embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A wheelchair, characterized in that: It comprises a wheelchair, the front end of which is provided with a footrest structure (2); The wheelchair comprises a wheelchair frame (1), and connecting sleeves (10) are respectively provided on both sides of the front end of the wheelchair frame (1); The connecting sleeve (10) is detachably equipped with a pedal structure (2); A rectangular insertion hole (101) is arranged at the end of the connecting sleeve (10), and limiting holes (102) are arranged at the upper and lower sides of the end of the rectangular insertion hole (101), and a locking bolt (103) is arranged on the connecting sleeve (10); The pedal structure (2) comprises a T-shaped connecting block (24) inserted into the rectangular insertion hole (101), one end of the T-shaped connecting block (24) is connected to a crossbar (20), the end of the crossbar (20) is connected to an inclined rod (21), the end of the inclined rod (21) is connected to an axle rod (22), and the axle rod (22) is connected to a pedal (23); A plurality of ridges (231) are provided on one surface of the pedal (23), and an arc-shaped groove (232) for supporting the leg is provided on the other surface of the pedal (23) along the length direction; The cross bar (20), the oblique bar (21), and the shaft bar (22) are integrally formed, the angle between the cross bar (20) and the oblique bar (21) is ɑ, the angle between the oblique bar (21) and the shaft bar (22) is β, and ɑ>β; ɑ is between 115°-135°, and β is between 95°-120°.

2. A wheelchair according to claim 1, characterized in that: Table board assemblies (3) are rotatably provided on the armrests on both sides of the wheelchair frame (1); The table top assembly (3) comprises a rotating sleeve (30) rotatably arranged on the armrest, an outer side wall of the rotating sleeve (30) is provided with a side plate (31), and the side plate (31) is connected to the table top (32).

3. A wheelchair according to claim 2, characterized in that: A rotating column (310) is arranged on one surface of the side plate (31), a rotating hole (320) matching with the rotating column (310) is arranged on one side of the end surface of the table top (32), and pin holes A (321) are respectively arranged on the end surfaces of the table top (32) on both sides of the rotating hole (320); A pin mechanism A matched with a pin hole A (321) is provided on the side plate (31) located on one side of the rotating column (310); The pin mechanism A comprises a groove (311) which is arranged on the bottom surface of the side plate (31) and is recessed upward. A through hole (312) is arranged on the bottom side surface of the groove (311). The bottom side surface of the groove (311) is connected to a movable plate (314) via a spring (313). One surface of the movable plate (314) is connected to a control rod (316), and the other surface is connected to a pin (315) which passes through the through hole (312) and is inserted into a pin hole A (321).

4. A wheelchair according to claim 3, characterized in that: A pin hole B (322) is provided on the other side of the end surface of the table top (32), and a pin mechanism B cooperating with the pin hole B (322) is provided on the side plate (31), and the pin mechanism B has the same structure as the pin mechanism A.

5. A wheelchair according to any one of claims 2 to 4, characterized in that: A limiting mechanism for limiting the position of a vertical table top (32) is provided on the wheelchair frame (1) located on one side of the armrest, the limiting mechanism comprising a fixing sleeve (11) connected to the wheelchair frame (1), a rotating column rotatably connected inside the fixing sleeve (11), and a limiting clamping plate (12) abutting against the outer side wall of the table top (32) is provided at the end of the rotating column.

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