CN220608531U

CN220608531U - Additional climbing component of power wheelchair and wheelchair using same

Info

Publication number: CN220608531U
Application number: CN202321231050.1U
Authority: CN
Inventors: 徐仙飞; 曹云飞; 吴月红
Original assignee: Ningbo Beilun Peoples Hospital
Current assignee: Ningbo Beilun Peoples Hospital
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2024-03-19
Anticipated expiration: 2033-05-22

Abstract

The utility model discloses an additional climbing component of a power wheelchair and a wheelchair applied by the same, wherein the additional climbing component comprises: a support frame having an upper fork engagement groove for detachably connecting the power wheelchair wheel; the first driven wheel and the second driven wheel are rotatably arranged on the support frame, and the wheels, the first driven wheel and the second driven wheel are distributed in a triangular mode; and the walking crawler belt is coated on the peripheries of the wheel, the first driven wheel and the second driven wheel. The utility model provides an additional climbing component of a power wheelchair, which is characterized in that an upper fork embedded groove for connecting wheels of the power wheelchair is formed in a supporting frame, the wheels of the power wheelchair are used as power wheels to drive a walking crawler belt to travel, and a user only needs to additionally install the additional climbing component, so that the cost of a vehicle required by refitting is reduced, and the additional climbing component is suitable for large-scale popularization and use.

Description

Additional climbing component of power wheelchair and wheelchair using same

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to an additional climbing component of a power wheelchair and a wheelchair using the same.

Background

Wheelchairs are an aid to the movement of persons with mobility difficulties and generally comprise a seat and two large wheels for propulsion and steering. The conventional wheelchair has the disadvantage of poor obstacle crossing performance and climbing performance. For people who need to move over uneven ground, conventional wheelchairs may not meet the needs. Under the condition, the triangular crawler wheels can improve the obstacle crossing performance and the climbing performance of the wheelchair, so that the wheelchair can move more flexibly.

For this reason, in the chinese patent of the issued publication CN 202843959U, a wheelchair type double-track vehicle is disclosed, which comprises a vehicle body, an engine, a steering device and a driving wheel, wherein the vehicle body is composed of a seat and a frame, the seat is a wheelchair type seat, support armrests are arranged on the left and right sides of the wheelchair type seat, a controller capable of controlling the crawler to run is arranged on the support armrests, the controller is connected with the steering device, and two pedals capable of being opened and retracted are arranged at the lower part of the wheelchair type seat.

However, in the above-mentioned patent scheme, the track is integrated with the vehicle body, and wheel type wheelchairs are mostly adopted in the market in the prior art, if the triangular track wheel needs to be replaced, the whole wheelchair needs to be replaced, and the cost of the vehicle is increased. Therefore, the triangular crawler wheel is added on the traditional wheelchair to be more suitable for use.

Disclosure of Invention

The present utility model aims to solve one of the technical problems in the related art to a certain extent. Therefore, the utility model provides an additional climbing component of a power wheelchair, which is characterized in that an upper fork embedded groove for connecting wheels of the power wheelchair is formed in a supporting frame, the wheels of the power wheelchair are used as power wheels to drive a walking crawler belt to travel, and a user only needs to additionally install the additional climbing component, so that the cost of a vehicle required by refitting is reduced, and the additional climbing component is suitable for large-scale popularization and use.

The utility model further provides a wheelchair with the additional climbing component.

The technical scheme adopted by the utility model is as follows: an additional climbing assembly for a powered wheelchair is provided, comprising:

a support frame having an upper fork engagement groove for detachably connecting the power wheelchair wheel;

the first driven wheel and the second driven wheel are rotatably arranged on the support frame, and the wheels, the first driven wheel and the second driven wheel are distributed in a triangular mode;

and the walking crawler belt is coated on the peripheries of the wheel, the first driven wheel and the second driven wheel.

After the structure is adopted, the wheels of the power wheelchair are detachably arranged on the support frame, the wheels, the first driven wheels and the second driven wheels on the support frame form a basic structure of the triangular crawler belt, and the wheels are used as power wheels for output. Namely, a motor on the power wheelchair drives a wheel to rotate forward or backward, and the wheel drives a walking crawler belt to rotate. A user can additionally install an additional climbing component on the traditional wheel type wheelchair according to the requirement to form a triangular crawler type wheelchair, and the triangular crawler wheels can improve the obstacle crossing performance and the climbing performance of the wheelchair, so that the wheelchair can move more flexibly. The user only needs to install the additional climbing component, so that the cost of the vehicle required by refitting is reduced, and the vehicle climbing device is suitable for large-scale popularization and use.

Preferably, the support frame is provided with a front fork jogged groove, and the first driven wheel is provided with a first mandrel detachably connected with the front fork jogged groove; the first mandrel on the first driven wheel can be arranged in the front fork embedded groove through a quick-dismantling structure, so that the quick lock of the additional climbing component can be conveniently installed and dismantled.

Preferably, the support frame is provided with a rear fork jogged groove, and the second driven wheel is provided with a second mandrel detachably connected with the rear fork jogged groove; the second mandrel on the second driven wheel can be arranged in the front fork embedded groove through a quick-dismantling structure, so that the quick lock of the additional climbing component can be conveniently installed and dismantled.

As a preferable scheme, the support frame further comprises a plurality of support wheels, wherein the support wheels are arranged in pairs between the first driven wheel and the second driven wheel; the plurality of support wheels are in contact with the ground as profile wheels, wherein the outer diameters of the support wheels are smaller than the outer diameters of the first driven wheel and the second driven wheel.

As an optimal scheme, the frame body of the support frame comprises a front fork oblique beam, a front fork transverse direction connected with one end of the front fork oblique beam and a rear fork oblique beam connected with the other end of the front fork oblique beam, and the upper fork jogging groove is positioned at the joint of the front fork oblique beam and the rear fork oblique beam.

As a preferable scheme, the frame body of the support frame further comprises a vertical pipe, the connection parts of the front fork oblique beam and the rear fork oblique beam are connected with one end of the vertical pipe, and the other end of the vertical pipe is connected with the front fork cross beam; the arrangement of the vertical pipes can increase the bearing capacity of the supporting frame.

As an optimized scheme, the front fork oblique beam and the rear fork oblique beam are respectively and fixedly connected with two ends of the supporting plate, and the supporting wheel is fixedly arranged on the supporting plate.

Preferably, the end face of the walking track is T-shaped.

Preferably, one end of the front fork, which is transversely far away from the front fork oblique beam, is provided with a connecting hole for connecting the power wheelchair body.

The utility model aims to solve the other technical problem of providing a wheelchair for solving the problems that the common wheelchair is inconvenient to replace the triangular crawler wheels and the replacement cost is high.

In order to solve the above problems, the present utility model provides a wheelchair comprising an additional climbing assembly of any one of the powered wheelchairs described above.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a wheelchair in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic view of a wheelchair according to an embodiment of the present utility model;

FIG. 3 is a perspective view of an additional climbing assembly according to an embodiment of the present utility model;

FIG. 4 is a side view of an additional climbing assembly according to an embodiment of the present utility model;

FIG. 5 is a perspective view of a support frame according to an embodiment of the present utility model;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

FIG. 7 is a schematic view of a supporting frame according to an embodiment of the present utility model;

fig. 8 is a perspective view of a track in an embodiment of the utility model.

The reference numerals in the figures illustrate:

1. a powered wheelchair; 2. a support frame; 3. a walking track; 4. a first driven wheel; 5. a second driven wheel; 11. a wheel; 21. a frame body; 22. a support plate; 23. a support wheel; 24. an upper fork jogging groove; 25. a front fork jogging groove; 26. a rear fork fitting groove; 21a, front fork oblique beam; 21b, a front fork cross member; 21c, a rear fork oblique beam; 21d, a stand pipe; 21e, connecting holes; 23a, inter-wheel gap; 41. a first mandrel; 51. a second mandrel.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 3-8, an additional climbing assembly of the power wheelchair 1 is disclosed in this embodiment, comprising:

a supporting frame 2 having an upper fork engaging groove 24 for detachably connecting the wheels 11 of the power wheelchair 1;

the first driven wheel 4 and the second driven wheel 5 are rotatably arranged on the support frame 2, and the wheels 11, the first driven wheel 4 and the second driven wheel 5 are distributed in a triangular mode;

and the walking crawler belt 3 is coated on the peripheries of the wheel 11, the first driven wheel 4 and the second driven wheel 5.

As shown in fig. 3 and 4, in the present embodiment, the power wheelchair 1 specifically refers to a wheelchair having a driving device, such as an electric wheelchair, on which driving wheels 11 are mounted. As described in connection with fig. 1, two additional climbing modules are mounted on both sides of the power wheelchair 1, respectively. The upper fork jogging groove 24 on the supporting frame 2 is composed of two gaps on fork arms which are arranged at intervals, and two ends of a spindle of the wheel 11 of the power wheelchair 1 are jogged and installed in the two gaps and are fixed by nuts.

Specifically, in the present embodiment, the first driven wheel 4 and the second driven wheel 5 are mounted in a similar manner to the wheels 11 of the power wheelchair 1, that is, the support frame 2 has a front fork engaging groove 25, the first driven wheel 4 has a first spindle 41 detachably connected to the front fork engaging groove 25, the support frame 2 has a rear fork engaging groove 26, and the second driven wheel 5 has a second spindle 51 detachably connected to the rear fork engaging groove 26.

Further, in the present embodiment, the front fork engaging groove 25 is formed by notches on two fork arms provided at intervals, and both ends of the first spindle 41 of the first driven wheel 4 are engaged and mounted in the two notches and fixed by nuts.

Further, in the present embodiment, the rear fork engaging groove 26 is formed by two notches on the fork arms disposed at intervals, and both ends of the second spindle 51 of the second driven wheel 5 are engaged and mounted in the two notches and fixed by nuts.

Specifically, as shown in fig. 5 and fig. 6, in this embodiment, the support frame 2 further includes fourteen supporting wheels 23, the supporting wheels 23 are located between the first driven wheel 4 and the second driven wheel 5 and are arranged in seven groups in pairs, two supporting wheels 23 in a single group are arranged at intervals, the end surface of the walking track 3 is T-shaped, and protrusions on the inner surface of the walking track 3 are adapted to gaps 23a between the two supporting wheels 23, so as to prevent the walking track 3 from laterally moving during operation.

Specifically, the frame 21 of the support frame 2 includes a front fork oblique beam 21a, a front fork transverse direction connected with one end of the front fork oblique beam 21a, and a rear fork oblique beam 21c connected with the other end of the front fork oblique beam 21a, the upper fork jogged groove 24 is located at the connection position of the front fork oblique beam 21a and the rear fork oblique beam 21c, the frame 21 of the support frame 2 further includes a vertical tube 21d, the connection position of the front fork oblique beam 21a and the rear fork oblique beam 21c is connected with one end of the vertical tube 21d, and the other end of the vertical tube 21d is connected with the front fork cross beam 21 b; the vertical pipe 21d is arranged to increase the bearing capacity of the support frame 2, the front fork oblique beam 21a and the rear fork oblique beam 21c are respectively and fixedly connected with two ends of the support plate 22, and the support wheel 23 is fixedly arranged on the support plate 22.

Further, in the present embodiment, the front fork oblique beam 21a and the front fork cross beam 21b are integrally connected, the rear fork oblique beam 21c is fixedly connected with the front fork oblique beam 21a through a pin, and both ends of the support plate 22 are fixedly connected with the front fork oblique beam 21a and the rear fork oblique beam 21c through pins, respectively.

Specifically, one end of the front fork, which is transversely far away from the front fork oblique beam 21a, is provided with a connecting hole 21e for connecting the power wheelchair 1 body, two sides of the power wheelchair 1 body are provided with connecting shafts which extend outwards, and the power wheelchair 1 body is connected with an additional climbing component through the cooperation of the connecting shafts and the connecting holes 21 e.

In another embodiment, as shown in connection with fig. 1 and 2, a wheelchair is disclosed, comprising an additional climbing assembly of the powered wheelchair 1 described in this embodiment.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. An additional climbing assembly for a powered wheelchair, comprising:

a support frame (2) having an upper fork engagement groove (24) for detachably connecting the wheels (11) of the power wheelchair (1);

the first driven wheel (4) and the second driven wheel (5) are rotatably arranged on the support frame (2), and the wheels (11), the first driven wheel (4) and the second driven wheel (5) are distributed in a triangular mode;

a walking crawler belt (3) which is coated on the peripheries of the wheel (11), the first driven wheel (4) and the second driven wheel (5);

the support frame (2) further comprises a plurality of support wheels (23), and the support wheels (23) are arranged in pairs between the first driven wheel (4) and the second driven wheel (5);

the frame body (21) of the support frame (2) comprises a front fork oblique beam (21 a), a front fork transverse direction connected with one end of the front fork oblique beam (21 a) and a rear fork oblique beam (21 c) connected with the other end of the front fork oblique beam (21 a), and the upper fork embedded groove (24) is positioned at the joint of the front fork oblique beam (21 a) and the rear fork oblique beam (21 c);

the front fork oblique beam (21 a) and the rear fork oblique beam (21 c) are respectively and fixedly connected with two ends of a supporting plate (22), and the supporting wheel (23) is fixedly arranged on the supporting plate (22);

the support frame (2) still includes fourteen supporting wheels (23), supporting wheels (23) are located set up into seven groups in pairs between first follow driving wheel (4) and second follow driving wheel (5), two supporting wheels (23) interval setting in the single group, the terminal surface of walking track (3) is T shape, the protruding interwheeled clearance (23 a) adaptation with two supporting wheels (23) of walking track (3) internal surface, prevents that walking track (3) from taking place to move side in the operation in-process.

2. An additional climbing assembly for a powered wheelchair according to claim 1, wherein: the support frame (2) is provided with a front fork embedded groove (25), and the first driven wheel (4) is provided with a first mandrel (41) detachably connected with the front fork embedded groove (25).

3. An additional climbing assembly for a powered wheelchair according to claim 1, wherein: the support frame (2) is provided with a rear fork embedded groove (26), and the second driven wheel (5) is provided with a second mandrel (51) which is detachably connected with the rear fork embedded groove (26).

4. An additional climbing assembly for a powered wheelchair according to claim 1, wherein: the frame body (21) of the support frame (2) further comprises a vertical pipe (21 d), the connection parts of the front fork oblique beam (21 a) and the rear fork oblique beam (21 c) are connected with one end of the vertical pipe (21 d), and the other end of the vertical pipe (21 d) is connected with a front fork cross beam (21 b); the front fork oblique beam (21 a) and the front fork cross beam (21 b) are connected into a whole, the rear fork oblique beam (21 c) is fixedly connected with the front fork oblique beam (21 a) through a pin shaft, and two ends of the supporting plate (22) are respectively fixedly connected with the front fork oblique beam (21 a) and the rear fork oblique beam (21 c) through pin shafts.

5. An additional climbing assembly for a powered wheelchair according to claim 1, wherein: the end face of the walking crawler belt (3) is T-shaped.

6. An additional climbing assembly for a powered wheelchair according to claim 1, wherein: one end of the front fork, which is transversely far away from the front fork oblique beam (21 a), is provided with a connecting hole (21 e) for connecting the body of the power wheelchair (1).

7. A wheelchair, characterized in that: an additional climbing assembly comprising the powered wheelchair of any of claims 1-6.