A foldable crutch chair based on umbrella rib structure

Abstract

The present invention provides a foldable crutch chair based on an umbrella rib structure, comprising a stick, a folding frame and a retractable leg, the folding frame comprising an upper, middle and lower sleeves and a plurality of ribs, the upper and lower sleeves can slide along the stick, the middle sleeve is fixedly connected to the stick, the ribs comprise outer ribs and inner ribs, all outer ribs are arranged around the stick, the outer ribs comprise upper, lower and middle rib sections, the upper rib section upper end is rotatably connected to the upper sleeve, the lower end is rotatably connected to the upper end of the middle rib section, the lower end of the middle rib section is rotatably connected to the upper end of the lower rib section, the lower end of the lower rib section is rotatably connected to the upper end of the lower sleeve, one end of the inner rib is rotatably connected to the middle sleeve, and the other end is rotatably connected to the middle part of the upper rib section, the retractable leg comprises a plurality of legs, the upper end of the leg is fixedly connected to the lower rib section, and the middle part is rotatably fixed to the lower sleeve. The present invention has the beneficial effects of: small space is occupied after folding, collision with other things is avoided, and storage and movement are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of crutch, and in particular to a foldable crutch chair based on an umbrella rib structure. Background Art

[0002] Crutch is an indispensable auxiliary product for the elderly and disabled with lower limb mobility problems. However, ordinary crutches have a single function and limited uses. Although some multifunctional crutches have appeared on the market in recent years, they have little auxiliary effect on the above-mentioned groups of people and are not satisfactory to use, especially for these people who cannot provide a temporary resting facility during walking. For this reason, people have developed a folding crutch chair or folding cane, that is, a foldable chair that can provide a temporary resting seat facility for users and can be used as a crutch after folding.

[0003] Most of the existing crutch chairs on the market adopt a folding method of transforming a folding stool into a walking cane. However, most of the folded crutch chairs are generally wide, and the stool surface occupies a large space when used as a crutch, which is easy to collide with other things, resulting in the danger of tripping and falling, causing many inconveniences in use. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a foldable crutch chair based on an umbrella rib structure.

[0005] The embodiment of the present invention provides a foldable crutch chair based on an umbrella rib structure, comprising a stick, a folding frame and retractable legs, wherein the folding frame comprises an upper sleeve, a middle sleeve, a lower sleeve and a plurality of umbrella ribs, wherein the upper sleeve, the middle sleeve and the lower sleeve are sequentially sleeved on the stick from top to bottom, and the upper sleeve and the lower sleeve can slide along the stick, the middle sleeve is fixedly connected to the stick, each of the umbrella ribs comprises an outer umbrella rib and an inner umbrella rib, all the outer umbrella ribs are arranged around the stick, the outer umbrella ribs comprise an upper umbrella rib segment and a lower umbrella rib segment arranged obliquely, and a middle umbrella rib segment arranged vertically. The rib segment, the upper end of the upper rib segment is rotatably connected to the upper sleeve, and the lower end is rotatably connected to the upper end of the middle rib segment, the lower end of the middle rib segment is rotatably connected to the upper end of the lower rib segment, and the lower end of the lower rib segment is rotatably connected to the upper end of the lower sleeve. Each of the inner ribs is arranged between the upper rib segment of the outer rib and the pole, and one end of the inner rib is rotatably connected to the middle sleeve, and the other end is rotatably connected to the middle part of the upper rib segment. The retractable legs include a plurality of legs, the upper end of each leg is fixedly connected to the lower rib segment, and the middle part is rotatably fixed to the lower sleeve.

[0006] Furthermore, a foldable leather cloth piece is provided between any two adjacent middle rib sections.

[0007] Furthermore, the supporting leg is Z-shaped, a horizontally arranged rotating shaft is provided in the lower sleeve, a middle portion of the supporting leg passes through the lower sleeve, and the rotating shaft passes through the supporting leg.

[0008] Furthermore, the number of the legs is four, wherein two of the legs form a leg group, the two legs of the leg group are connected to form an X shape, and the two leg groups are arranged in parallel.

[0009] Furthermore, all the umbrella ribs are evenly arranged around the pole.

[0010] Furthermore, the umbrella ribs are made of magnesium-aluminum alloy.

[0011] Furthermore, a handle is provided at the upper end of the stick.

[0012] The beneficial effects brought about by the technical solution provided by the embodiments of the present invention are as follows: a foldable crutch chair based on an umbrella rib structure of the present invention, based on the folding and unfolding structure of the umbrella ribs, can be used as a chair when unfolded and can accommodate multiple people, and can be used as a crutch when folded. After folding, it has a straight pole shape similar to an umbrella, occupies little space, avoids collision with other things, is easy to store and move, has a simple structure, and is practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a folding frame of a foldable crutch chair based on an umbrella rib structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the unfolding and folding states of a foldable crutch chair based on an umbrella rib structure according to the present invention.

[0015] In the figure: 1-pole, 2-upper sleeve, 3-middle sleeve, 4-lower sleeve, 5-outer rib, 6-inner rib, 7-leg, 8-upper rib section, 9-middle rib section, 10-lower rib section, 11-leather cloth, 12-handle. DETAILED DESCRIPTION

[0016] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0017] Please refer to Figure 1 and 2 An embodiment of the present invention provides a foldable crutch chair based on an umbrella rib structure, comprising a stick 1, a folding frame and retractable legs.

[0018] The folding frame includes an upper sleeve 2, a middle sleeve 3, a lower sleeve 4 and a plurality of ribs, wherein the upper sleeve 2, the middle sleeve 3 and the lower sleeve 4 are sequentially sleeved on the pole 1 from top to bottom, and the upper sleeve 2 and the lower sleeve 4 can slide along the pole 1, and the middle sleeve 3 is fixedly connected to the pole 1. The upper sleeve 2 can slide along the pole 1 to the upper end of the middle sleeve 3, and is resisted by the middle sleeve 3 to stop sliding.

[0019] Each of the ribs includes an outer rib 5 and an inner rib 6. All the outer ribs 5 are arranged around the pole 1. In order to make all the ribs bear force as evenly as possible, all the ribs are evenly arranged around the pole. The outer ribs 5 include an upper rib section 8 and a lower rib section 10 arranged obliquely, and a middle rib section 9 arranged vertically. The upper end of the upper rib section 8 can be rotatably connected to the upper sleeve 2, and the lower end can be rotatably connected to the upper end of the middle rib section 9. The lower end of the middle rib section 9 can be rotatably connected to the upper end of the lower rib section 10. The lower end of the lower rib section 10 can be rotatably connected to the upper end of the lower sleeve 4. The rotational connection here is all through an axis rotation connection. A foldable leather cloth piece 11 is provided between any two adjacent middle rib sections 5. The leather cloth piece 11 connects each of the middle rib sections 9, so that each of the middle rib sections 9 bears force as evenly as possible. In this embodiment, in order to reduce the weight of the foldable crutch chair based on the rib structure of the present invention, the ribs are made of magnesium-aluminum alloy.

[0020] Each of the inner ribs 6 is arranged between an upper rib section 8 of an outer rib 5 and the pole 1, and one end of the inner rib 6 is rotatably connected to the middle sleeve 3, and the other end is rotatably connected to the middle part of the upper rib section 8, so that each of the inner ribs 6 rotates with the rotation of the upper rib section 8, and the inner ribs 6 support the upper rib section 8, so that the upper rib section 8 rotates in the vertical direction to avoid deviation.

[0021] The retractable legs include a plurality of legs 7, the upper end of each leg 7 is fixedly connected to the lower rib section 10, and the middle part is rotatably fixed to the lower sleeve 4. When the lower rib section 10 is opened downward, the legs 7 are driven to open, and when the lower ends of the opened legs 7 are supported on the ground, the upper ends of the legs 7 support the lower rib section 10. In this embodiment, the number of the legs 7 is four, two of which form a leg group, the two legs 7 of the leg group are connected to form an X shape, and the two leg groups are arranged in parallel. The legs 7 are Z-shaped, and a horizontally arranged rotating shaft is provided in the lower sleeve 4. The middle part of the leg 7 passes through the lower sleeve 4, and the rotating shaft passes through the leg 7. In this way, the retractable legs have four supporting points to stably support the foldable crutch chair based on the rib structure of the present invention.

[0022] In order to facilitate the support of the foldable crutch chair based on the umbrella rib structure of the present invention when used as a crutch, a handle 12 is provided at the upper end of the stick 1.

[0023] Please refer to Figure 2 The embodiment of the present invention provides a foldable crutch chair based on an umbrella rib structure, which can be used as a chair in the unfolded state (C→B→A). At this time, the upper sleeve 2 slides to the upper end of the middle sleeve 3, the upper umbrella rib section 8 is fully unfolded to form a chair surface, and the lower umbrella rib section 10 slides downward to make the legs 7 rotate around the rotating shaft, thereby making all the legs 7 diverge. The lower end of the legs 7 is supported on the ground, and the upper end supports the lower umbrella rib section 10, forming a stable seat structure for a person. Multiple people can sit on it. It should be noted that in order to ensure the balance of the chair, it is best for two people to sit back to back. In the folded state (A→B→C), it can be used as a crutch, at this time, the upper sleeve 2 slides up to close the upper rib section 8, and the inner rib 6 follows the closure, and the lower sleeve 4 slides up to close the lower rib section 10. The upper rib section 8, the inner rib 6, the middle rib section 9 and the lower rib section 10 are all closed in contact with the pole 1, and the legs 7 follow the closure of the lower rib section 10.

[0024] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0025] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A foldable crutch chair based on an umbrella rib structure, characterized in that: The utility model comprises a pole, a folding frame and a retractable leg, wherein the folding frame comprises an upper sleeve, a middle sleeve, a lower sleeve and a plurality of ribs, wherein the upper sleeve, the middle sleeve and the lower sleeve are sequentially sleeved on the pole from top to bottom, and the upper sleeve and the lower sleeve can slide along the pole, the middle sleeve is fixedly connected to the pole, each rib comprises an outer rib and an inner rib, all the outer ribs are arranged around the pole, the outer ribs comprise an upper rib section and a lower rib section arranged obliquely, and a middle rib section arranged vertically, and the upper end of the upper rib section can be The upper sleeve is rotatably connected, and the lower end is rotatably connected to the upper end of the middle rib section, the lower end of the middle rib section is rotatably connected to the upper end of the lower rib section, and the lower end of the lower rib section is rotatably connected to the upper end of the lower sleeve. Each inner rib is arranged between the upper rib section of an outer rib and the pole, and one end of the inner rib is rotatably connected to the middle sleeve, and the other end is rotatably connected to the middle part of the upper rib section. The retractable legs include a plurality of legs, and the upper end of each leg is fixedly connected to the lower rib section, and the middle part is rotatably fixed to the lower sleeve. A foldable leather cloth piece is provided between any two adjacent middle rib sections; All the umbrella ribs are evenly arranged around the pole.

2. A foldable crutch chair based on an umbrella rib structure as claimed in claim 1, characterized in that: The supporting leg is Z-shaped, a horizontally arranged rotating shaft is arranged in the lower sleeve, the middle part of the supporting leg passes through the lower sleeve, and the rotating shaft passes through the supporting leg.

3. The foldable crutch chair based on the umbrella rib structure as claimed in claim 1, characterized in that: The number of the legs is four, wherein two of the legs form a leg group, the two legs of the leg group are connected to form an X shape, and the two leg groups are arranged in parallel.

4. The foldable crutch chair based on an umbrella rib structure as claimed in claim 1, characterized in that: The umbrella ribs are made of magnesium-aluminum alloy.

5. The foldable crutch chair based on an umbrella rib structure as claimed in claim 1, characterized in that: A handle is provided at the upper end of the stick.

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