CN214231785U - Wheel chair - Google Patents
Wheel chair Download PDFInfo
- Publication number
- CN214231785U CN214231785U CN202022327289.1U CN202022327289U CN214231785U CN 214231785 U CN214231785 U CN 214231785U CN 202022327289 U CN202022327289 U CN 202022327289U CN 214231785 U CN214231785 U CN 214231785U
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- connecting rod
- rod
- chair frame
- wheelchair
- folding
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- 238000000034 method Methods 0.000 claims abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model discloses a wheelchair, wherein a left chair frame and a right chair frame are connected through a folding connecting piece; the folding connecting piece comprises a left folding rod group and a right folding rod group, wherein a first left connecting rod of the left folding rod group is hinged with a second left connecting rod, a first right connecting rod of the right folding rod group is hinged with a second right connecting rod, one end of the first left connecting rod is hinged with the left chair frame, the other end of the first left connecting rod is hinged with the first right connecting rod, the other end of the first right connecting rod is hinged with the right chair frame, one end of the second left connecting rod is connected with the left chair frame in a sliding mode, the other end of the second left connecting rod is hinged with the second right connecting rod, and the other end of the second right connecting rod is connected with the right chair frame in a sliding mode; the locking device further comprises an adjusting locking rod, and the adjusting locking rod is used for limiting the rotation of the first left connecting rod and the second left connecting rod and/or limiting the rotation of the first right connecting rod and the second right connecting rod. The utility model discloses a wheelchair can highly not change at folding and the in-process of opening, has improved the size degree of freedom at positions such as seat, handrail, back, can not increase length and the ascending size of width direction in addition after folding yet, the packing transportation of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of medical auxiliary instrument, especially, relate to a wheelchair.
Background
In recent years, the problem of aging of the Chinese population is increasingly serious, and wheelchairs are more and more appeared in daily life of people, which provides great convenience for a plurality of people with inconvenient actions. The folding wheelchair has the advantages of easy storage and convenient use, and has great market demand. How to reduce the occupied volume of the wheelchair when the wheelchair is stored as much as possible and facilitate the folding and unfolding operations of people is the research and development focus of various wheelchair manufacturers.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a wheelchair which has small volume after being folded and can flexibly adjust the width of the seat when in use.
The purpose of the utility model is realized by adopting the following technical scheme:
a wheelchair, comprising: the wheelchair comprises a wheelchair frame, and a front wheel and a rear wheel which are arranged on the wheelchair frame; the wheelchair frame comprises a left chair frame and a right chair frame, and the left chair frame is connected with the right chair frame through a folding connecting piece; the folding connecting piece at least comprises a pair of X-shaped folding rod groups, each X-shaped folding rod group comprises a left folding rod group consisting of a first left connecting rod and a second left connecting rod and a right folding rod group consisting of a first right connecting rod and a second right connecting rod, the first left connecting rod is hinged with the second left connecting rod through a first connecting rod hinge shaft, the first connecting rod hinge shaft is arranged in the middle of the first left connecting rod and the second left connecting rod, the first right connecting rod is hinged with the second right connecting rod through a second connecting rod hinge shaft, the second connecting rod hinge shaft is arranged in the middle of the first right connecting rod and the second right connecting rod, and the axes of the first connecting rod hinge shaft and the second connecting rod hinge shaft extend along the vertical direction; one end of the first left connecting rod is hinged with the left chair frame, the other end of the first left connecting rod is hinged with the first right connecting rod, the other end of the first right connecting rod is hinged with the right chair frame, one end of the second left connecting rod is connected with the left chair frame in a sliding mode, the other end of the second left connecting rod is hinged with the second right connecting rod, and the other end of the second right connecting rod is connected with the right chair frame in a sliding mode; still including adjusting the locking lever, adjust the locking lever and be used for the restriction the rotation of first left connecting rod with the second left connecting rod and/or restriction the rotation of first right connecting rod with the second right connecting rod.
As a specific embodiment of the wheelchair of the present invention, the locking lever is a telescopic sleeve, the two ends of the locking lever are respectively connected to the first left connecting rod and the pin joint of the first right connecting rod and the second left connecting rod and the pin joint of the second right connecting rod directly or indirectly, and the locking lever is adjustable in length and locked.
As a specific embodiment of the wheelchair of the present invention, adjust the check lock pole and include first check lock pole, second check lock pole and hinge, the one end of first check lock pole with left side chair frame links to each other, and the other end passes through the hinge with the second check lock pole links to each other, the other end of second check lock pole with right side chair frame links to each other, first check lock pole with the second check lock pole can wind the hinge rotates, the axis of hinge extends along the horizontal direction, first check lock pole with the turned angle lockable of second check lock pole.
As a specific embodiment of the wheelchair of the present invention, the second left connecting rod is connected to a left frame rail disposed on the left frame via a first sliding sleeve, and the first sliding sleeve is sleeved on the left frame rail and can move along the left frame rail; the second right connecting rod is connected with a right chair frame cross rod arranged on the right chair frame through a second sliding sleeve, and the second sliding sleeve is sleeved on the right chair frame cross rod and can move along the right chair frame cross rod; the left chair frame cross rod and the right chair frame cross rod horizontally extend along the front-back direction.
As a specific embodiment of the wheelchair of the present invention, the second left connecting rod is connected to the left chair frame through a first pin, the left chair frame is provided with a first horizontal chute for accommodating the first pin, and the first pin can move in the first horizontal chute; the second right connecting rod is connected with the right chair frame through a second pin shaft, a second horizontal sliding groove for accommodating the second pin shaft is formed in the right chair frame, and the second pin shaft can move in the second horizontal sliding groove; the first horizontal sliding groove and the second horizontal sliding groove extend horizontally in the front-rear direction.
As a specific embodiment of the wheelchair of the utility model, the folding connecting piece comprises two pairs of X-shaped folding rod groups which are arranged up and down, and the X-shaped folding rod groups which are correspondingly arranged up and down are connected together through a vertical connecting rod.
As a specific implementation mode of the wheelchair of the utility model, the wheelchair further comprises a handle arranged at the front part and/or the rear part of the X-shaped folding rod group.
As a specific embodiment of the wheelchair of the present invention, the handle is disposed at the joint of the left folding bar group and the right folding bar group.
Compared with the prior art, the beneficial effects of the utility model reside in that: the left chair frame and the right chair frame of the wheelchair are connected through the X-shaped folding rod group, a left connecting rod and a right connecting rod in the folding rod group can rotate in the horizontal direction around a connecting rod hinge shaft arranged in the vertical direction, the connecting rod can drive the left chair frame and the right chair frame to be folded or unfolded when rotating, in the folding and opening processes, the height of the wheelchair cannot be changed, namely, the space in the vertical direction cannot be changed, the structure improves the size freedom degrees of the positions such as a seat, a handrail and a backrest, the selection margin is larger, the wheelchair is more flexible, the length and the size in the width direction of the wheelchair cannot be increased after being folded, and the wheelchair is more convenient to package and transport.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of another angle in embodiment 1 of the present invention;
fig. 3 is a plan view of embodiment 1 of the present invention;
fig. 4 is a side view of embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 6 is a schematic structural view of another angle in embodiment 2 of the present invention;
fig. 7 is a plan view of embodiment 2 of the present invention.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Example 1
Referring to fig. 1, 2, 3 and 4, the wheelchair of the present embodiment includes a wheelchair frame, a pair of front wheels, a pair of rear wheels and a folding link. For convenience of description, the left-right direction is defined in terms of the width direction of the wheelchair. The wheelchair frame comprises a left chair frame 1 and a right chair frame 2, the front wheels comprise a left front wheel 3 arranged at the front part of the left chair frame 1 and a right front wheel 4 arranged at the front part of the right chair frame 2, and the rear wheels comprise a left rear wheel 5 arranged at the rear part of the left chair frame 1 and a right rear wheel 6 arranged at the rear part of the right chair frame 2. The left chair frame 1 and the right chair frame 2 are connected together through a folding connecting piece 7. The left chair frame 1 and the right chair frame 2 are provided with a cushion and a backrest, and the structure of the cushion and the backrest is omitted in the attached drawings of the specification for the convenience of clearly showing the structure of the folding connecting piece.
The folding connecting piece 7 at least comprises a pair of X-shaped folding rod groups, and each pair of X-shaped folding rod groups comprises a left folding rod group consisting of a first left connecting rod 7-1 and a second left connecting rod 7-2 and a right folding rod group consisting of a first right connecting rod 7-3 and a second right connecting rod 7-4. The first left connecting rod 7-1 and the second left connecting rod 7-2 are hinged together through a first connecting rod hinge shaft 7-5, the first connecting rod hinge shaft 7-5 is arranged in the middle of the first left connecting rod 7-1 and the second left connecting rod 7-2, and the first left connecting rod 7-1 and the second left connecting rod 7-2 are in an X-shaped structure. Similarly, the first right connecting rod 7-3 and the second right connecting rod 7-4 are hinged together through a second connecting rod hinge shaft 7-6, the second connecting rod hinge shaft 7-6 is arranged in the middle of the first right connecting rod 7-3 and the second right connecting rod 7-4, and the first right connecting rod 7-3 and the second right connecting rod 7-4 are also in an X-shaped structure. The axes of the first link hinge shaft 7-5 and the second link hinge shaft 7-6 extend in the vertical direction.
One end of a first left connecting rod 7-1 is hinged with the left chair frame 1, the other end is hinged with a first right connecting rod 7-3, and the other end of the first right connecting rod 7-3 is hinged with the right chair frame 2; one end of a second left connecting rod 7-2 is connected with the left chair frame 1 in a sliding way, the other end of the second left connecting rod 7-2 is hinged with a second right connecting rod 7-4, and the other end of the second right connecting rod 7-4 is connected with the right chair frame 2 in a sliding way. Because one end of the first left connecting rod 7-1 is hinged on the left chair frame 1, and one end of the second left connecting rod 7-2 is connected with the left chair frame 1 in a sliding way, when the first left connecting rod 7-1 and the second left connecting rod 7-2 rotate around the first connecting rod hinge shaft 7-5, one end of the second left connecting rod 7-2 connected with the left chair frame 1 can move back and forth along the left chair frame 1, and therefore the distance between the two ends of the left connecting rod in the width direction of the wheelchair can be adjusted. Similarly, when the first right connecting rod 7-3 and the second right connecting rod 7-4 rotate around the second connecting rod hinge shaft 7-6, the distance between two ends of the right connecting rod in the width direction can be adjusted, the left chair frame and the right chair frame are connected through the two X folding rod groups, the folding of the wheelchair can be realized, and the width of the wheelchair can be adjusted according to requirements. An adjusting locking rod 8 is arranged between the left folding rod group and the right folding rod group, two hinge points are arranged between the left folding rod group and the right folding rod group, and two ends of the adjusting locking rod 8 are connected to the two hinge points respectively. The regulation check lock lever 8 of this embodiment is flexible sliding sleeve structure, and the length accessible of adjusting check lock lever 8 is adjusted in the flexible of outer tube. Adjust the check lock lever 8 and connect between left folding rod group and the right folding rod group, its length can be adjusted with the rotation flexible of left and right connecting rod, after left and right connecting rod rotated according to the width demand and targetting in place, will adjust check lock lever 8 and lock, left and right connecting rod can not rotate, can lock the width of wheelchair promptly.
As a preferred embodiment, in this embodiment, the left chair frame 1 and the right chair frame 2 are connected by 2 pairs of X-shaped folding rod sets arranged up and down, the X-shaped folding rod sets arranged up and down correspondingly are connected together by 6 vertical connecting rods 9, and the adjusting locking rod 8 is connected between two vertical connecting rods 9 connected with the hinge point of the left folding rod set and the right folding rod set. The left chair frame 1 and the right chair frame 2 are connected through 2 pairs of X-shaped folding rod groups which are arranged up and down, so that the folding structure is more stable, and better supporting force can be provided.
Example 2
This example differs from example 1 in that: the second left connecting rod 7-2 of embodiment 1 is connected to a cross rod on the left chair frame 1 through a sliding sleeve (a first sliding sleeve), and the sliding sleeve is sleeved on the cross rod and can move along the cross rod (the left chair frame cross rod), so that the second left connecting rod 7-2 is slidably connected to the left chair frame 1. Similarly, the second right link 7-4 is also connected to a cross bar (right frame cross bar) on the right frame 2 through a sliding sleeve (second sliding sleeve), so that the second right link 7-4 is slidably connected to the right frame 1. The second left connecting rod 7-2 of the embodiment 2 is arranged in the horizontal sliding groove (the first horizontal sliding groove) of the upper cross bar of the left chair frame 1 through the structure of the pin shaft (the first pin shaft), and the pin shaft can move in the horizontal sliding groove, so that the second left connecting rod 7-2 is connected with the left chair frame 1 in a sliding manner. The second right connecting rod 7-4 has the same connecting structure with the right chair frame 1.
In addition, the adjusting locking lever 8 of embodiment 2 is a double-lever hinge structure, the adjusting locking lever 8 of embodiment 2 includes a first locking lever 8-1, a second locking lever 8-2, and a hinge shaft 8-3, one end of the first locking lever 8-1 is connected to the left seat frame 1, the other end is connected to the second locking lever 8-2 through the hinge shaft 8-3, the other end of the second locking lever 8-2 is connected to the right seat frame 2, an axis of the hinge shaft 8-3 extends in a horizontal direction, and the first locking lever 8-1 and the second locking lever 8-2 are rotatable around the hinge shaft 8-3. When the distance between the left chair frame 1 and the right chair frame 2, namely the width of the wheelchair is adjusted, the pin shaft 8-3 is locked, the position relation between the first locking rod 8-1 and the second locking rod 8-2 is fixed, and the first locking rod 8-1 and the second locking rod 8-2 can not rotate, so that the width of the wheelchair is fixed and can not change.
In order to facilitate folding and width adjustment, a handle 9 may be further disposed at a joint of the left folding bar group and the right folding bar group, in this embodiment, the handle 9 is disposed at a front portion of the X-shaped folding bar group, but may also be disposed at a rear portion of the X-shaped folding bar group, or both the front and the rear portions of the X-shaped folding bar group. In the foregoing embodiment, the distance between the left chair frame and the right chair frame is locked by the adjusting locking rod connected with the left and right connecting rods or the adjusting locking rod connected with the chair frame, so as to lock the width of the wheelchair, in other embodiments, the adjusting locking rod may also be a bolt or a threaded fastener or other structures arranged on the chair frame, at this time, the adjusting locking rod is used for limiting the sliding end of the second left connecting rod and the sliding end of the second right connecting rod, after the sliding end of the first left connecting rod and the sliding end of the second right connecting rod move in place, the adjusting locking rod limits the sliding ends (i.e., limits the rotation of the left and right connecting rods), so that the sliding ends cannot move continuously, and the function of locking the width of the wheelchair can also be achieved. In addition, the adjustable locking levers of embodiment 1 and embodiment 2 may also be used interchangeably.
Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.
Claims (8)
1. A wheelchair, comprising: the wheelchair comprises a wheelchair frame, and a front wheel and a rear wheel which are arranged on the wheelchair frame; the method is characterized in that:
the wheelchair frame comprises a left chair frame and a right chair frame, and the left chair frame is connected with the right chair frame through a folding connecting piece;
the folding connecting piece at least comprises a pair of X-shaped folding rod groups, each X-shaped folding rod group comprises a left folding rod group consisting of a first left connecting rod and a second left connecting rod and a right folding rod group consisting of a first right connecting rod and a second right connecting rod, the first left connecting rod is hinged with the second left connecting rod through a first connecting rod hinge shaft, the first connecting rod hinge shaft is arranged in the middle of the first left connecting rod and the second left connecting rod, the first right connecting rod is hinged with the second right connecting rod through a second connecting rod hinge shaft, the second connecting rod hinge shaft is arranged in the middle of the first right connecting rod and the second right connecting rod, and the axes of the first connecting rod hinge shaft and the second connecting rod hinge shaft extend along the vertical direction;
one end of the first left connecting rod is hinged with the left chair frame, the other end of the first left connecting rod is hinged with the first right connecting rod, the other end of the first right connecting rod is hinged with the right chair frame, one end of the second left connecting rod is connected with the left chair frame in a sliding mode, the other end of the second left connecting rod is hinged with the second right connecting rod, and the other end of the second right connecting rod is connected with the right chair frame in a sliding mode;
still including adjusting the locking lever, adjust the locking lever and be used for the restriction the rotation of first left connecting rod with the second left connecting rod and/or restriction the rotation of first right connecting rod with the second right connecting rod.
2. The wheelchair of claim 1 wherein: the adjustable locking device is characterized in that the adjustable locking rod is a telescopic sleeve rod, two ends of the adjustable locking rod are respectively connected with a hinge point of the first left connecting rod and the first right connecting rod and a hinge point of the second left connecting rod and the second right connecting rod directly or indirectly, and the adjustable locking rod is lockable in telescopic length.
3. The wheelchair of claim 1 wherein: the adjusting locking rod comprises a first locking rod, a second locking rod and a hinge shaft, one end of the first locking rod is connected with the left chair frame, the other end of the first locking rod is connected with the second locking rod through the hinge shaft, the other end of the second locking rod is connected with the right chair frame, the first locking rod and the second locking rod can rotate around the hinge shaft, the axis of the hinge shaft extends along the horizontal direction, and the rotation angle of the first locking rod and the rotation angle of the second locking rod can be locked.
4. The wheelchair of claim 1 wherein: the second left connecting rod is connected with a left chair frame cross rod arranged on the left chair frame through a first sliding sleeve, and the first sliding sleeve is sleeved on the left chair frame cross rod and can move along the left chair frame cross rod; the second right connecting rod is connected with a right chair frame cross rod arranged on the right chair frame through a second sliding sleeve, and the second sliding sleeve is sleeved on the right chair frame cross rod and can move along the right chair frame cross rod; the left chair frame cross rod and the right chair frame cross rod horizontally extend along the front-back direction.
5. The wheelchair of claim 1 wherein: the second left connecting rod is connected with the left chair frame through a first pin shaft, a first horizontal sliding groove for accommodating the first pin shaft is formed in the left chair frame, and the first pin shaft can move in the first horizontal sliding groove; the second right connecting rod is connected with the right chair frame through a second pin shaft, a second horizontal sliding groove for accommodating the second pin shaft is formed in the right chair frame, and the second pin shaft can move in the second horizontal sliding groove; the first horizontal sliding groove and the second horizontal sliding groove extend horizontally in the front-rear direction.
6. The wheelchair of claim 1 wherein: the folding connecting piece comprises two pairs of X-shaped folding rod groups which are arranged up and down, and the X-shaped folding rod groups which are correspondingly arranged up and down are connected together through a vertical connecting rod.
7. The wheelchair of claim 1 wherein: the X-shaped folding rod group is characterized by also comprising a handle arranged at the front part and/or the rear part of the X-shaped folding rod group.
8. The wheelchair of claim 7 wherein: the handle is arranged at the joint of the left folding rod group and the right folding rod group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022327289.1U CN214231785U (en) | 2020-10-19 | 2020-10-19 | Wheel chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022327289.1U CN214231785U (en) | 2020-10-19 | 2020-10-19 | Wheel chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214231785U true CN214231785U (en) | 2021-09-21 |
Family
ID=77729743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022327289.1U Expired - Fee Related CN214231785U (en) | 2020-10-19 | 2020-10-19 | Wheel chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214231785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115581567A (en) * | 2022-11-10 | 2023-01-10 | 浙江兮梦医疗器械有限公司 | Folding wheelchair |
-
2020
- 2020-10-19 CN CN202022327289.1U patent/CN214231785U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115581567A (en) * | 2022-11-10 | 2023-01-10 | 浙江兮梦医疗器械有限公司 | Folding wheelchair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |