Wheelchair capable of stably standing on escalator

Abstract

The wheelchair capable of stably standing on the escalator comprises a wheelchair body and stable supporting assemblies, the back face of the wheelchair body is provided with a hinged frame and a handrail rod which are transversely arranged, the stable supporting assemblies are correspondingly arranged on the two sides of the hinged frame, one end of each stable supporting assembly is hinged to the end of the hinged frame, and the other end of each stable supporting assembly is hinged to the handrail rod. When the wheelchair body does not go on the escalator, the stable supporting assembly is in a contraction state, and when the wheelchair body goes on the escalator, the stable supporting assembly is opened and forms a stable triangular structure to be supported on a step, located behind the wheelchair body, of the escalator. The stable supporting assembly forms a stable triangular structure to be supported on a step, located behind the wheelchair body, of the escalator, the whole wheelchair body is supported, people do not need to support the wheelchair, and after using is completed, the stable supporting assembly can be contracted, and no extra space is occupied.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to a wheelchair that can stand stably on an escalator. Background Art

[0002] A wheelchair is an important rehabilitation tool. It is not only a means of transportation for the physically disabled and people with limited mobility, but more importantly, it enables them to exercise their bodies and participate in social activities with the help of a wheelchair. An ordinary wheelchair generally consists of a wheelchair frame, wheels, a braking device, and a seat back.

[0003] An escalator is generally inclined. When a pedestrian stands on the automatically moving steps at one end of the escalator, they will be automatically taken to the other end of the escalator, and the steps will remain horizontal all the way. Handrails that move synchronously with the steps are provided on both sides of the escalator for users to hold.

[0004] Currently, when a wheelchair is on an escalator, due to the inclination of the escalator, the wheelchair is also in an inclined state on the escalator. To ensure the stability of the wheelchair, it is necessary for personnel to assist in holding the wheelchair to support it and prevent the wheelchair from tipping backward. Undoubtedly, this will increase the labor intensity of the auxiliary personnel. Content of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. However, such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide a wheelchair that can stand stably on an escalator, which can enable the wheelchair to stand stably on the escalator independently and reduce the labor intensity of the auxiliary personnel.

[0007] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0008] A wheelchair that can stand stably on an escalator, comprising:

[0009] A wheelchair body, which has a horizontally arranged hinge frame and a handrail rod on its back;

[0010] A stable support assembly, correspondingly arranged on both sides of the hinge frame, with one end hinged to the end of the hinge frame and the other end hinged to the handrail rod;

[0011] Wherein, when the wheelchair body is not on the escalator, the stable support assembly is in a contracted state. When the wheelchair body is on the escalator, the stable support assembly opens and forms a stable triangular structure to support on the steps behind the wheelchair body on the escalator.

[0012] As a preferred solution of a wheelchair that can stand stably on an escalator according to the present utility model, wherein the stable support assembly includes a support column hinged to the end of the hinge frame at one end, a first link hinged to the side of the support column, and a second link hinged to one end of the first link and connected to the lower side wall of the handrail at the other end.

[0013] As a preferred solution of a wheelchair that can stand stably on an escalator according to the present utility model, wherein first hinge ears are provided on both sides of the hinge frame, second hinge ears are provided at the top of the support column, and the first hinge ears and the second hinge ears are coaxially connected by a shaft pin.

[0014] As a preferred solution of a wheelchair that can stand stably on an escalator according to the present utility model, wherein a third hinge ear connected to the first link by a shaft pin is provided on the side wall of the support column.

[0015] As a preferred solution of a wheelchair that can stand stably on an escalator according to the present utility model, wherein a threaded hole is provided at the bottom of the support column;

[0016] The stable support assembly further includes an adjusting foot pad, and the adjusting foot pad includes a threaded post and a support pad vertically provided at the bottom of the threaded post. The threaded post is screwed into the threaded hole and can axially move relative to the threaded hole by screwing.

[0017] As a preferred solution of a wheelchair that can stand stably on an escalator according to the present utility model, wherein the bottom of the support pad is arc-shaped or semi-circular.

[0018] Compared with the prior art, the present utility model has the beneficial effects that when going up the escalator, the stable support assembly is opened to form a stable triangular structure to support on the steps behind the wheelchair body on the escalator, so as to support the whole wheelchair body without personnel to support the wheelchair, and after use, the stable support assembly can be retracted without occupying extra space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the 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 according to these drawings without creative efforts. Among them:

[0020] Figure 1 It is a schematic structural diagram of the stable support assembly of a wheelchair that can stand stably on an escalator according to the present utility model when it is in an open state;

[0021] Figure 2 This is a schematic structural view of the stable support assembly of a wheelchair that can stand stably on an escalator according to the present utility model when in a contracted state;

[0022] Figure 3 This is a schematic structural view of the stable support assembly of a wheelchair that can stand stably on an escalator according to the present utility model;

[0023] Figure 4 This is a schematic structural view of the connection between the support column and the adjustable footrest of a wheelchair that can stand stably on an escalator according to the present utility model. Detailed implementation manners

[0024] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0025] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0026] To make the purpose, technical solution, and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0027] The present utility model provides a wheelchair that can stand stably on an escalator, which can enable the wheelchair to stand stably on the escalator independently and reduce the labor intensity of the auxiliary personnel.

[0028] Figures 1-4 The schematic structural view of a wheelchair that can stand stably on an escalator according to the present utility model is shown. Please refer to Figures 1-4 , A wheelchair that can stand stably on an escalator in this embodiment, its main part includes a wheelchair body 100 and a stable support assembly 200.

[0029] The back of the wheelchair body 100 has a horizontally arranged hinge frame 110 and an armrest rod 120;

[0030] The stable support assembly 200 is correspondingly arranged on both sides of the articulated frame 110. One end thereof is hinged to the end of the articulated frame 110, and the other end is hinged to the handrail 120. In this embodiment, the stable support assembly 200 includes a support column 210 with one end hinged to the end of the articulated frame 110, a first connecting rod 220 hinged to the side of the support column 210, and a second connecting rod 230 with one end hinged to the first connecting rod 220 and the other end hinged to the lower side wall of the handrail 120. Preferably, first hinge ears 110a are provided on both sides of the articulated frame 110, and a second hinge ear 210c is provided at the top of the support column 210. The first hinge ear 110a and the second hinge ear 210c are coaxially connected by a shaft pin. The side wall of the support column 210 has a third hinge ear 210a connected to the first connecting rod 220 by a shaft pin.

[0031] Combined with Figures 1-4 , a wheelchair that can stand stably on an escalator in this embodiment, when in use, the stable support assembly 200 is opened. As shown in Figure 1 , at this time, the first connecting rod 220 and the second connecting rod 230 are in the maximum tensile state. The combined rods of the support column 210, the first connecting rod 220 and the second connecting rod 230 and the handrail 120 form a stable triangular structure. When the wheelchair body 100 gets on the escalator, the support column 210 supports on the steps of the escalator behind the wheelchair body 100, thereby supporting the whole wheelchair body 100. After use, the stable support assembly 200 is contracted. As shown in Figure 2 , it will not occupy space.

[0032] Preferably, in order to adapt to the step heights of escalators of different specifications or models, a threaded hole 210b is provided at the bottom of the support column 210. The stable support assembly 200 further includes an adjusting foot pad 240. The adjusting foot pad 240 includes a threaded column 240a and a support pad 240b vertically provided at the bottom of the threaded column 240a. The threaded column 240a is screwed into the threaded hole 210b and can axially move relative to the threaded hole 210b. The support height of the support column 210 can be finely adjusted by screwing the adjusting foot pad 240. Among them, in this embodiment, the bottom of the support pad 240b is arc-shaped or semi-circular.

[0033] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way. The exhaustive description of these combinations is omitted in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wheelchair capable of standing stably on an escalator, characterized in that: include: A wheelchair body (100) having a transversely arranged hinge frame (110) and a handrail (120) on its back; A stable support assembly (200) is arranged on both sides of the articulated frame (110) correspondingly, one end of which is hinged to the end of the articulated frame (110) and the other end of which is hinged to the handrail (120); When the wheelchair body (100) is not on the escalator, the stabilizing support assembly (200) is in a retracted state; when the wheelchair body (100) is on the escalator, the stabilizing support assembly (200) is opened to form a stable triangular structure that supports the step of the escalator behind the wheelchair body (100).

2. A wheelchair capable of standing stably on an escalator according to claim 1, characterized in that: The stabilizing support assembly (200) comprises a support column (210) having one end hinged to the end of an articulated frame (110), a first connecting rod (220) hinged to the side of the support column (210), and a second connecting rod (230) having one end hinged to the first connecting rod (220) and the other end connected to the lower side wall of the handrail rod (120).

3. A wheelchair capable of standing stably on an escalator according to claim 2, characterized in that: First hinged ears (110a) are provided on both sides of the hinged frame (110), a second hinged ear (210c) is provided on the top of the support column (210), and the first hinged ear (110a) and the second hinged ear (210c) are coaxially connected via an axle pin.

4. A wheelchair capable of standing stably on an escalator according to claim 2, characterized in that: The side wall of the support column (210) has a third hinge ear (210a) connected to the first connecting rod (220) via an axle pin.

5. A wheelchair capable of standing stably on an escalator according to claim 2, characterized in that: A threaded hole (210b) is provided at the bottom of the support column (210); The stabilizing support assembly (200) further comprises an adjusting foot (240), wherein the adjusting foot (240) comprises a threaded column (240a) and a supporting pad (240b) vertically arranged at the bottom of the threaded column (240a), wherein the threaded column (240a) is screwed into the threaded hole (210b) and can move axially relative to the screw hole (210b) knob.

6. A wheelchair capable of standing stably on an escalator according to claim 5, characterized in that: The bottom of the supporting cushion block (240b) is arc-shaped or semicircular.

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