A telescopic adjustable handrail and wheelchair

Abstract

The application relates to a walking aid and relates to the technical field of a telescopic adjusting type handrail and wheelchair, which comprises a fixed base and a handrail body, the handrail body comprises an upper shell, a lower shell, an inner shell and a sliding plate, the lower shell is movably arranged above the fixed base, a sliding groove is formed in the bottom wall of the lower shell along the length direction of the lower shell, a protruding frame is formed in the outer circle of the sliding groove of the bottom wall of the lower shell, the sliding plate is slidably arranged in the inner part of the protruding frame, a plurality of bolts are screwed into the inner part of the fixed base and connected with the sliding plate, a sliding block is arranged at the bottom of the sliding plate and slidably connected in the sliding groove, the inner shell is fixed on the upper part of the lower shell through the plurality of bolts, and the upper shell covers the inner shell and is arranged on the upper part of the lower shell. According to the application, the handrail body is telescopically adjusted on the wheelchair, manual adjustment of users with different heights can be realized, the use experience is improved, and the application has high practicability.

Description

Technical Field

[0001] This utility model relates to the technical field of mobility aids, specifically disclosing a retractable and adjustable handrail and a wheelchair. Background Technology

[0002] Wheelchairs are an important tool for rehabilitation. They are not only a means of transportation for people with physical disabilities, but more importantly, they enable them to exercise and participate in social activities.

[0003] As an important component of wheelchairs, armrests are used to support the patient's elbows and prevent the patient from tipping over. Most existing armrests are fixed to the wheelchair and cannot be extended or adjusted, which leads to differences in user experience for people of different heights.

[0004] To address this problem, this application discloses a retractable and adjustable handrail and a wheelchair. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model discloses a retractable and adjustable armrest wheelchair.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a retractable and adjustable handrail, comprising a fixed base and a handrail body. The handrail body includes an upper shell, a lower shell, an inner shell, and a sliding plate. The lower shell is movably disposed above the fixed base. A groove is formed along the length of the bottom wall of the lower shell. A raised frame is formed on the outer edge of the groove on the bottom wall of the lower shell. The sliding plate is slidably disposed inside the raised frame. Several bolts are screwed into the interior of the fixed base and connected to the sliding plate. A slider is provided at the bottom of the sliding plate and slides in the groove. The inner shell is fixed above the lower shell by several bolts. The upper shell covers the inner shell and fits over the lower shell.

[0007] More preferably, the fixed base of the retractable and adjustable handrail has a slot on the front side, and an outwardly extending Z-shaped bending member is fixed in the slot by bolts. A controller is fixed on the Z-shaped bending member by bolts.

[0008] More preferably, the skateboard has several guide protrusions on both sides in the width direction that contact the inner wall of the raised frame.

[0009] A further preferred embodiment is that a pad is provided between the inner shell and the upper shell.

[0010] More preferably, the travel distance of the armrest body is 40mm.

[0011] More preferably, the fixed base of the retractable adjustable handrail has a slot on the front side, and an outwardly extending Z-shaped bending member is fixed in the slot by bolts. A controller is fixed on the Z-shaped bending member by bolts.

[0012] A wheelchair comprising the retractable and adjustable armrests described in any of the above descriptions.

[0013] This utility model achieves the following beneficial effects: This application improves the user experience and has high practicality by making the armrest adjustable and retractable on the wheelchair, allowing users of different heights to manually adjust it.

[0014] Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the principles of the disclosure.

[0016] Figure 1 This is a schematic diagram of the external structure disclosed in this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure disclosed in this utility model; Figure 3 This is a schematic diagram of the internal structure disclosed in this utility model; Figure 4 This is a schematic diagram of the wheelchair structure disclosed in this utility model; In the diagram: 10, fixed base; 11, slot; 20, handrail body; 21, upper shell; 22, lower shell; 221, slide groove; 222, raised frame; 23, inner shell; 24, slide plate; 241, slider; 242, guide protrusion; 25, pad; 30, bolt; 40, Z-shaped bend; 50, controller. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Example

[0019] To address the issue that most existing handrails are fixed to the wheelchair and cannot be adjusted, resulting in inconsistent user experiences for people of different heights, this paper refers to... Figures 1-4 As shown, this application discloses a retractable and adjustable armrest and a wheelchair, including a fixed base 10 and an armrest body 20. The armrest body 20 includes an upper shell 21, a lower shell 22, an inner shell 23, and a sliding plate 24. The lower shell 22 is movably disposed above the fixed base 10. A groove 221 is provided on the bottom wall of the lower shell 22 along its length direction. A raised frame 222 is formed on the outer ring of the groove 221 on the bottom wall of the lower shell 22. The sliding plate 24 is slidably disposed inside the raised frame 222. Several bolts 30 are screwed into the interior of the fixed base 10 and connected to the sliding plate 24. A slider 241 is provided at the bottom of the sliding plate 24 and slides in the groove 221. The inner shell 23 is fixed above the lower shell 22 by several bolts 30. The upper shell 21 covers the inner shell 23 and covers the lower shell 22.

[0020] refer to Figure 3 As shown, in order to make the skateboard 24 slide smoothly within the raised frame 222 and have less friction, this application provides several guide protrusions 242 on both sides of the skateboard 24 in the width direction, which contact the inner wall of the raised frame 222. When the operator pulls the entire handrail body 20 to move it, the guide protrusions 242 on the skateboard 24 will contact and slide with the raised frame 222.

[0021] refer to Figure 2 As shown, in order to prevent the upper housing 21 from denting under stress and affecting the user's experience, this application provides a pad 25 between the inner housing 23 and the upper housing 21. The pad 25 is mainly used to fill the gap between the upper housing 21 and the inner housing 23.

[0022] In one specific embodiment, the travel distance of the handrail body 20 is set to 40mm. That is, the maximum travel distance of the handrail body 20 formed based on the above structure is 40mm. Of course, if those skilled in the art need to design other travel distance values, they can design them according to their own needs, such as 35mm, 45mm, etc.

[0023] refer to Figure 2As shown, and based on the above-formed retractable and adjustable armrest, after it is installed on the wheelchair, this application also provides a slot 11 on the front side of the fixed base 10. A Z-shaped bending member 40 extending outward is fixed in the slot 11 by bolts 30. A controller 50 is fixed on the Z-shaped bending member 40 by bolts 30. In actual use, the operator can operate the controller 50 to control the movement of the wheelchair.

[0024] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A retractable and adjustable handrail, characterized in that, The system includes a fixed base (10) and a handrail body (20). The handrail body (20) includes an upper shell (21), a lower shell (22), an inner shell (23), and a sliding plate (24). The lower shell (22) is movably disposed above the fixed base (10). A groove (221) is formed on the bottom wall of the lower shell (22) along its length. A raised frame (222) is formed on the outer ring of the groove (221) on the bottom wall of the lower shell (22). The slide plate (24) is slidably disposed inside the raised frame (222). Several bolts (30) are screwed into the fixed base (10) and connected to the slide plate (24). The bottom of the slide plate (24) is provided with a slider (241) that slides in the groove (221). The inner shell (23) is fixed above the lower shell (22) by several bolts (30). The upper shell (21) covers the inner shell (23) and covers the lower shell (22).

2. The retractable and adjustable handrail according to claim 1, characterized in that, The slide plate (24) has several guide protrusions (242) on both sides in the width direction that contact the inner wall of the protrusion frame (222).

3. The retractable and adjustable handrail according to claim 1, characterized in that, A pad (25) is provided between the inner shell (23) and the upper shell (21).

4. The retractable and adjustable handrail according to claim 1, characterized in that, The travel distance of the handrail body (20) is 40mm.

5. A retractable and adjustable handrail according to claim 1, characterized in that, The fixed base (10) of the retractable adjustable handrail has a slot (11) on the front side. A Z-shaped bending piece (40) extending outward is fixed in the slot (11) by bolts (30). A controller (50) is fixed on the Z-shaped bending piece (40) by bolts (30).

6. A wheelchair, characterized in that, Includes at least two retractable and adjustable handrails as described in any one of claims 1-5.

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