CN219049201U - Automatic lifting folding wheelchair based on pneumatic - Google Patents
Automatic lifting folding wheelchair based on pneumatic Download PDFInfo
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- CN219049201U CN219049201U CN202223470658.8U CN202223470658U CN219049201U CN 219049201 U CN219049201 U CN 219049201U CN 202223470658 U CN202223470658 U CN 202223470658U CN 219049201 U CN219049201 U CN 219049201U
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Abstract
The utility model discloses an automatic lifting folding wheelchair based on pneumatic, which comprises a seat, a lifting folding mechanism and a travelling mechanism, wherein the lifting folding mechanism is arranged on the seat; the lifting folding mechanism comprises a base, a lifting mechanism and a balance supporting mechanism; the lifting mechanism comprises a lifting driving cylinder and a lifting transmission assembly; the lifting transmission assembly comprises a first transmission rod and a second transmission rod, two ends of the first transmission rod are respectively and rotatably connected to the base and the seat, and two ends of the second transmission rod are respectively and rotatably connected to the telescopic rod of the lifting driving cylinder and the first transmission rod; the balance supporting mechanism comprises a balance supporting driving cylinder and a balance transmission assembly; the balance transmission assembly comprises a balance supporting rod and a supporting sliding block; two ends of the balance support rod are respectively and rotatably connected with the support sliding block and the base; the support sliding block is fixedly connected with the telescopic rod of the balance support driving cylinder. The automatic lifting folding wheelchair can solve the problems of automatic lifting, space saving and structural protection.
Description
Technical Field
The utility model relates to a wheelchair, in particular to an automatic lifting folding wheelchair based on pneumatic power.
Background
The wheelchair is mainly used as an important moving tool for rehabilitation, turnover transportation, treatment and outgoing activities of wounded and disabled persons, not only meets the requirements of the disabled persons and the mobility impaired persons, but also is convenient for the family members to move and care the patients, so that the patients can exercise and participate in social activities by means of the wheelchair. Most wheelchairs at present generally consist of a foldable frame, left and right side plates, front and rear wheels, left and right knee pads, foot pedals, left and right armrests, a handle brake device, a chair, a backrest, a medical image data bag, a urine receiving bag hook and the like. The folding space of the wheelchair is limited, the mechanical structure of the wheelchair cannot be well protected, and the problems of automatic lifting, space saving and structural protection cannot be considered.
Disclosure of Invention
The utility model aims to overcome the problems of the prior art and provide an automatic lifting and folding wheelchair based on pneumatic, which can solve the problems of automatic lifting, space saving and structural protection.
The aim of the utility model is achieved by the following technical scheme:
an automatic lifting folding wheelchair based on pneumatic comprises a seat, a lifting folding mechanism and a travelling mechanism; the seat and the lifting folding mechanism are arranged on the travelling mechanism;
the lifting folding mechanism comprises a base, a lifting mechanism and a balance supporting mechanism; the base is arranged between the walking mechanism and the seat; the lifting mechanism comprises a lifting driving cylinder and a lifting transmission assembly; the cylinder body of the lifting driving cylinder is fixedly arranged on the base; the lifting transmission assembly comprises a first transmission rod and a second transmission rod, two ends of the first transmission rod are respectively and rotatably connected to the base and the seat, two ends of the second transmission rod are respectively and rotatably connected to a telescopic rod of the lifting driving cylinder and the first transmission rod, and a connecting point of the second transmission rod on the first transmission rod is positioned between connecting points of two ends of the first transmission rod; the base is provided with a lower storage groove for storing the first transmission rod and the second transmission rod;
the balance supporting mechanism comprises a balance supporting driving cylinder and a balance transmission assembly; the cylinder body of the lifting driving cylinder is fixedly arranged at the bottom of the seat; the balance transmission assembly comprises a balance supporting rod and a supporting sliding block; two ends of the balance support rod are respectively and rotatably connected with the support sliding block and the base; the support sliding block is arranged in a sliding groove at the bottom of the seat in a sliding way; the support sliding block is fixedly connected with the telescopic rod of the balance support driving cylinder; the bottom of the seat is provided with an upper storage groove for storing the balance support rod.
The working principle of the automatic lifting folding wheelchair based on the pneumatic is as follows:
in the folded state, the seat is folded against the base; when the seat is to be unfolded, the second transmission rod is driven to move by the lifting driving cylinder, so that the second transmission rod is gradually erected; meanwhile, the second transmission rod transmits power to the first transmission rod, and the first transmission rod is driven to rotate around the lower end of the first transmission rod to be connected in an upward reverse mode, so that the seat is lifted, and at the moment, the first transmission rod, the second transmission rod and the base form a stable triangle structure, so that the main force supporting function can be stably provided for the seat. Further, since the posture of the seat is not aligned at this time, the support slider is required to be driven to slide by the balance support driving cylinder, and since the support slider is connected with the balance support bar, the balance support bar gradually turns upward around the rotation center of the bottom along with the sliding of the support slider, thereby aligning the posture of the seat and providing a balanced supporting function.
If the seat is to be folded, the balance support driving cylinder drives the support sliding block to slide, so that the support function of the balance support rod is removed; the second transmission rod is driven to reset through the lifting driving cylinder, the first transmission rod gradually swings downwards around the rotation center of the bottom, so that the seat is folded downwards, at the moment, the first transmission rod and the second transmission rod are completely contained in the lower containing groove of the base, the balance support rod is contained in the upper containing groove, and the seat is also stacked on the base.
In a preferred embodiment of the utility model, the plane of rotation of the second transmission rod is parallel to the plane of rotation of the first transmission rod. Thus, the first transmission rod and the second transmission rod can be folded together, and occupied space is reduced.
According to a preferred scheme, two groups of lifting mechanisms are arranged in parallel;
the balance support rod is positioned between the two groups of lifting mechanisms.
In a preferred embodiment of the present utility model, the seat is being lifted when the telescopic rod of the lift driving cylinder is extended outward; when the telescopic rod of the lifting driving cylinder stretches outwards, the seat is folded downwards.
In a preferred embodiment of the present utility model, the seat is a foldable structure.
The utility model relates to a preferable scheme, wherein the traveling mechanism comprises traveling wheels, a traveling frame and a traveling power assembly; the walking wheel adopts a Mecanum wheel.
In a preferred embodiment of the present utility model, the bicycle further comprises a pedal structure, wherein the pedal structure comprises a pedal and a mounting strut; one end of the installation supporting rod is fixedly connected to the pedal, and the other end of the installation supporting rod is fixed to the base.
Compared with the prior art, the utility model has the following beneficial effects:
according to the automatic lifting folding wheelchair, the lifting mechanism and the balance supporting mechanism are arranged, so that the seat can be lifted and folded, the structures of the lifting mechanism and the balance supporting mechanism can be hidden in a folded state, the occupied space is small, space resources are effectively saved, and the effect of protecting the structure can be achieved.
Drawings
Fig. 1 is a schematic perspective view of a pneumatic-based automatic lifting and folding wheelchair in an opened state.
Fig. 2-4 show test questions of the pneumatic-based automatic lifting folding wheelchair of the utility model in different states, fig. 2 shows a folded state, fig. 3 shows a semi-opened state, and fig. 4 shows a fully opened state.
Fig. 5-6 are schematic perspective views of two different views of the seat and lift folding mechanism of the present utility model.
Detailed Description
In order that those skilled in the art will well understand the technical solutions of the present utility model, the following describes the present utility model further with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.
Referring to fig. 1 to 5, the pneumatic-based automatic lifting folding wheelchair of the embodiment comprises a seat 1, a lifting folding mechanism and a travelling mechanism; the seat 1 and the lifting folding mechanism are arranged on the travelling mechanism; in a preferred embodiment of the present utility model, the seat 1 is a foldable structure. The traveling mechanism comprises a traveling wheel 2, a traveling frame and a traveling power assembly; the travelling wheel 2 adopts a Mecanum wheel.
Referring to fig. 1-5, the lifting and folding mechanism comprises a base 3, a lifting mechanism and a balance supporting mechanism; the base 3 is arranged between the travelling mechanism and the seat 1; the lifting mechanism comprises a lifting driving cylinder 4 and a lifting transmission assembly; the cylinder body of the lifting driving cylinder 4 is fixedly arranged on the base 3; the lifting transmission assembly comprises a first transmission rod 5 and a second transmission rod 6, wherein two ends of the first transmission rod 5 are respectively and rotatably connected to the base 3 and the seat 1, two ends of the second transmission rod 6 are respectively and rotatably connected to a telescopic rod of the lifting driving cylinder 4 and the first transmission rod 5, and a connecting point of the second transmission rod 6 on the first transmission rod 5 is positioned between connecting points of two ends of the first transmission rod 5; the base 3 is provided with a lower accommodating groove 3-1 for accommodating the first transmission rod 5 and the second transmission rod 6. Wherein the rotation plane of the second transmission rod 6 is parallel to the rotation plane of the first transmission rod 5. In this way, the first transmission rod 5 and the second transmission rod 6 can be folded together, reducing the space occupied.
Further, when the telescopic rod of the lift drive cylinder 4 is extended outward, the seat 1 is being lifted; when the telescopic rod of the lift drive cylinder 4 is extended outwards, the seat 1 is being folded down.
Referring to fig. 1-5, the balance support mechanism includes a balance support drive cylinder 7 and a balance transmission assembly; the cylinder body of the lifting driving cylinder 4 is fixedly arranged at the bottom of the seat 1; the balance transmission assembly comprises a balance supporting rod 8 and a supporting sliding block 9; two ends of the balance support rod 8 are respectively and rotatably connected with the support slide block 9 and the base 3; the supporting slide block 9 is arranged in a sliding groove at the bottom of the seat 1 in a sliding way; the support sliding block 9 is fixedly connected with a telescopic rod of the balance support driving cylinder 7; the bottom of the seat 1 is provided with an upper accommodating groove 1-1 for accommodating the balance supporting rod 8.
Further, the lifting mechanisms are provided with two groups, and the two groups of lifting mechanisms are arranged in parallel; the balance support rod 8 is positioned between the two groups of lifting mechanisms.
Referring to fig. 1 to 5, the electric automatic lifting folding wheelchair of the present embodiment further includes a pedal structure including a pedal 10 and a mounting strut 11; one end of the installation supporting rod 11 is fixedly connected to the pedal 10, and the other end of the installation supporting rod 11 is fixed to the base 3.
Referring to fig. 1 to 5, the working principle of the pneumatic-based automatic lifting folding wheelchair of the embodiment is as follows:
in the folded state, the seat 1 is folded against the base 3; when the seat 1 is to be unfolded, the second transmission rod 6 is driven to move by the lifting driving cylinder 4, so that the second transmission rod 6 is gradually erected; at the same time, the second transmission rod 6 transmits power to the first transmission rod 5, and drives the first transmission rod 5 to rotate around the lower end of the first transmission rod to be connected upwards in a reverse direction, so that the seat 1 is lifted, and at the moment, the first transmission rod 5, the second transmission rod 6 and the base 3 form a stable triangle structure, so that the main force supporting function can be stably provided for the seat 1. Further, since the posture of the seat 1 is not yet aligned at this time, it is necessary to drive the support slider 9 to slide by the balance support driving cylinder 7, and since the support slider 9 is connected to the balance support bar 8, the balance support bar 8 gradually turns upward around the rotation center of the bottom portion as the support slider 9 slides, thereby aligning the posture of the seat 1 and providing a balanced supporting function.
When the seat 1 is to be folded, the support sliding block 9 is driven to slide by the balance support driving cylinder 7, so that the support function of the balance support rod 8 is removed; the second transmission rod 6 is driven to reset through the lifting driving cylinder 4, so that the first transmission rod 5 gradually swings downwards around the rotation center of the bottom, the seat 1 is folded downwards, at the moment, the first transmission rod 5 and the second transmission rod 6 are completely contained in the lower containing groove 3-1 of the base 3, the balance support rod 8 is contained in the upper containing groove 1-1, and the seat 1 is neatly stacked on the base 3, so that the internal structure is difficult to influence by the external environment. Especially when the environment is rainy day or wet weather, the life-span of connecting rod and revolute joint can be effectually prolonged to closed protection mode for whole structure is more durable and affordable.
The foregoing is illustrative of the present utility model, and is not to be construed as limiting thereof, but rather as various changes, modifications, substitutions, combinations, and simplifications which may be made without departing from the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The automatic lifting folding wheelchair based on the pneumatic is characterized by comprising a seat, a lifting folding mechanism and a travelling mechanism; the seat and the lifting folding mechanism are arranged on the travelling mechanism;
the lifting folding mechanism comprises a base, a lifting mechanism and a balance supporting mechanism; the base is arranged between the walking mechanism and the seat; the lifting mechanism comprises a lifting driving cylinder and a lifting transmission assembly; the cylinder body of the lifting driving cylinder is fixedly arranged on the base; the lifting transmission assembly comprises a first transmission rod and a second transmission rod, two ends of the first transmission rod are respectively and rotatably connected to the base and the seat, two ends of the second transmission rod are respectively and rotatably connected to a telescopic rod of the lifting driving cylinder and the first transmission rod, and a connecting point of the second transmission rod on the first transmission rod is positioned between connecting points of two ends of the first transmission rod; the base is provided with a lower storage groove for storing the first transmission rod and the second transmission rod;
the balance supporting mechanism comprises a balance supporting driving cylinder and a balance transmission assembly; the cylinder body of the lifting driving cylinder is fixedly arranged at the bottom of the seat; the balance transmission assembly comprises a balance supporting rod and a supporting sliding block; two ends of the balance support rod are respectively and rotatably connected with the support sliding block and the base; the support sliding block is arranged in a sliding groove at the bottom of the seat in a sliding way; the support sliding block is fixedly connected with the telescopic rod of the balance support driving cylinder; the bottom of the seat is provided with an upper storage groove for storing the balance support rod.
2. The pneumatic-based automatic lifting folding wheelchair of claim 1 wherein the plane of rotation of the second drive link is parallel to the plane of rotation of the first drive link.
3. The automatic pneumatic-based lifting and folding wheelchair according to claim 1, wherein the lifting mechanisms are arranged in two groups, and the two groups of lifting mechanisms are arranged in parallel;
the balance support rod is positioned between the two groups of lifting mechanisms.
4. The pneumatic-based automatic lifting folding wheelchair of claim 1 wherein the seat is lifting when the telescoping rod of the lifting drive cylinder is extended outwardly; when the telescopic rod of the lifting driving cylinder stretches outwards, the seat is folded downwards.
5. The pneumatic-based automatic lifting folding wheelchair of claim 1 wherein the seat is a collapsible structure.
6. The pneumatic-based automatic lifting and folding wheelchair of claim 1 wherein the travel mechanism comprises travel wheels, a travel frame, and a travel power assembly; the walking wheel adopts a Mecanum wheel.
7. The pneumatic-based automatic lifting and folding wheelchair of any of claims 1-6 further comprising a pedal structure comprising a pedal and a mounting strut; one end of the installation supporting rod is fixedly connected to the pedal, and the other end of the installation supporting rod is fixed to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223470658.8U CN219049201U (en) | 2022-12-23 | 2022-12-23 | Automatic lifting folding wheelchair based on pneumatic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223470658.8U CN219049201U (en) | 2022-12-23 | 2022-12-23 | Automatic lifting folding wheelchair based on pneumatic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219049201U true CN219049201U (en) | 2023-05-23 |
Family
ID=86348609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223470658.8U Active CN219049201U (en) | 2022-12-23 | 2022-12-23 | Automatic lifting folding wheelchair based on pneumatic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219049201U (en) |
-
2022
- 2022-12-23 CN CN202223470658.8U patent/CN219049201U/en active Active
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