CN215273982U - Wheelchair with automatic adjusting armrests capable of being completely laid - Google Patents
Wheelchair with automatic adjusting armrests capable of being completely laid Download PDFInfo
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- CN215273982U CN215273982U CN202120304516.0U CN202120304516U CN215273982U CN 215273982 U CN215273982 U CN 215273982U CN 202120304516 U CN202120304516 U CN 202120304516U CN 215273982 U CN215273982 U CN 215273982U
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- backrest
- wheelchair
- connecting rod
- seat plate
- adjusting mechanism
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Abstract
The utility model discloses a wheelchair with automatic adjusting armrests capable of lying completely, which comprises a front wheel, a rear wheel, a backrest, a seat board, armrests, leg supports, foot supports, a wheelchair frame, a leg support and foot support lifting mechanism, an automatic adjusting mechanism for the armrests and an angle adjusting mechanism for the backrest; the leg support and the foot support lifting mechanism are arranged among the leg support, the foot support and the wheelchair frame, the automatic armrest adjusting mechanism is arranged between the backrest and the seat plate, and the angle adjusting mechanism of the backrest is arranged between the backrest and the wheelchair frame. The utility model provides a can lie flat wheelchair completely to the handrail also adjusts the height along with putting flat along with the back, lets people's hand can keep a comfortable position all the time, realizes the holistic automatic intelligent operation of wheelchair, does not need manual operation and second people to come the operation, has made things convenient for the person of taking greatly.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, a wheelchair is related to, concretely relates to wheelchair of taking automatically regulated handrail can lie flat completely.
Background
Most of the currently used wheelchairs can not adjust the positions of the backrest and the legs, so that the old or the disabled can only keep a sitting posture all the time. In recent years, intelligent wheelchairs and electric wheelchairs have been attracting much attention and used as wheelchairs that can be operated by a rider. However, the armrests of the current electric wheelchairs generally cannot be controlled automatically or intelligently, and still need to be pulled out manually or be installed manually, which greatly reduces the intelligent level of the wheelchairs, and the armrests are not adjustable during the process of lying down, which increases the discomfort of people who take the wheelchairs.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a wheelchair that can lie flat completely to the handrail also adjusts the height along with it along with putting flat of back, lets people's hand can keep a comfortable position all the time, realizes the holistic automation mechanized operation of wheelchair, does not need artificial operation and second person to operate, has made things convenient for the person of taking greatly.
The utility model adopts the technical proposal that: a wheelchair with an automatic adjusting armrest capable of being completely laid comprises front wheels, rear wheels, a backrest, a seat board, armrests, leg supports, foot supports and a wheelchair frame; the device also comprises a leg support and foot support lifting mechanism, an automatic handrail adjusting mechanism and a backrest adjusting mechanism;
the leg support and foot support lifting mechanism is arranged among the leg support, the foot support and the wheelchair frame, the automatic armrest adjusting mechanism is arranged among the backrest and the seat plate, and the backrest adjusting mechanism is arranged among the backrest and the wheelchair frame.
Further, the leg support and foot support lifting mechanism comprises a first connecting rod, a second connecting rod and an electric cylinder;
the first connecting rod is L-shaped, one end of the first connecting rod is fixedly arranged on the foot support bottom plate, and the other end of the first connecting rod is hinged with one end of the second connecting rod; the second connecting rod is in a strip shape, and the other end of the second connecting rod is hinged with the base plate of the seat plate; the electric cylinder is respectively hinged with the base plate of the seat plate and the base plate of the leg support.
Further, the automatic armrest adjusting mechanism comprises a third connecting rod and a fourth connecting rod;
one end of the third connecting rod is hinged with the backrest, and the other end of the third connecting rod is hinged with the fourth connecting rod; the other end of the fourth connecting rod is hinged with the seat board.
Further, the backrest adjusting mechanism comprises a pair of angle adjusters, a backrest motor and a seven-star shaft;
the seven-star shaft is connected with a pair of angle adjusters which are respectively connected to two sides of the backrest through supporting rods, the pair of angle adjusters are connected to two ends of the seven-star shaft, and the seven-star shaft is connected with a backrest motor; the backrest motor provides power to drive the seven star shafts to rotate to drive the angle adjuster to rotate, so that the backrest is controlled by the backrest motor to rotate, and meanwhile, the handrail is driven to rotate.
Further, the seat plate is also provided with a seat plate adjusting mechanism; the seat plate adjusting mechanism comprises a pair of guide rails, a lead screw, a sliding block and a lead screw motor; the pair of guide rails are arranged between the seat plate and the wheelchair frame, a lead screw is arranged between the pair of guide rails, the lead screw is connected with a lead screw motor, a sliding block is in threaded connection with the lead screw, two sides of the sliding block are in sliding connection with the pair of guide rails, and the seat plate is fixed on the sliding block.
Further, the bedplate bottom is provided with focus detection mechanism, focus detection mechanism includes gyroscope sensor and acceleration sensor for the focus in the real-time detection wheelchair adjustment process.
And the terminal controller is respectively connected with the electric cylinder, the backrest motor, the lead screw motor, the gyroscope sensor and the acceleration sensor and is used for controlling the electric cylinder, the backrest motor and the lead screw motor to work and receiving the collected data of the gyroscope sensor and the acceleration sensor.
Has the advantages that:
(1) the armrests move along with the lying and sitting of the backrest through the automatic armrest adjusting mechanism, when the backrest lies down, the armrests are also put down, and when the backrest is sitting up, the armrests are also put up together, so that the chair is more convenient and does not need to be additionally adjusted.
(2) The backrest and the leg support are independently controlled, so that the old can conveniently and automatically select to straighten or bend the legs when sitting on the wheelchair, and the sitting posture can be changed, thereby avoiding the difficulty of sitting in a certain posture for a long time.
(3) The leg support and the foot support are lifted by the leg support and the foot support lifting mechanism to be completely stretched and leveled, so that the butt joint of the mechanism such as a bed and the like at the later stage can be facilitated.
(4) The relative position of bedplate can be adjusted through bedplate adjustment mechanism to the bedplate, conveniently adjusts the focus according to actual need when setting level the wheelchair, prevents that the wheelchair from turning on one's side.
The utility model provides a pair of can lie flat wheelchair completely to the handrail is along with laying of back also along with the height-adjusting along with it, lets people's hand can keep a comfortable position all the time, realizes the holistic operation of wheelchair, does not need artificial operation and second people to come the operation, has made things convenient for the person of taking greatly.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a leg rest and foot rest lifting mechanism according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an automatic armrest adjustment mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a backrest adjusting mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a seat plate adjusting mechanism according to an embodiment of the present invention.
The wheelchair comprises a front wheel 1, a first connecting rod 101, a second connecting rod 102, an electric cylinder 103, a rear wheel 2, a third connecting rod 201, a fourth connecting rod 202, a backrest 3, an angle adjuster 301, a backrest motor 302, a seven-star shaft 303, a supporting rod 304, a seat plate 4, a first guide rail 401, a second guide rail 402, a lead screw 403, a slide block 404, a lead screw motor 405, a handrail 5, a leg support 6, a foot support 7 and a wheelchair frame 8.
Detailed Description
To facilitate understanding and practice of the invention for those skilled in the art, the following detailed description of the invention is provided in connection with the accompanying drawings and the embodiments, it being understood that the embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.
Referring to fig. 1, the wheelchair with automatic adjustable armrests capable of lying completely provided by the present invention comprises a front wheel 1, a rear wheel 2, a backrest 3, a seat plate 4, armrests 5, leg supports 6, foot supports 7, a wheelchair frame 8, a leg support and foot support lifting mechanism, an automatic armrest adjusting mechanism, and a backrest angle adjusting mechanism; the leg support and foot support lifting mechanism is arranged among the leg support 6, the foot support 7 and the wheelchair frame 8, the automatic armrest adjusting mechanism is arranged among the backrest 3 and the seat plate 4, and the backrest adjusting mechanism is arranged among the backrest 3 and the wheelchair frame 8.
Referring to fig. 2, the leg rest and foot rest lifting mechanism of the present embodiment includes a first connecting rod 101, a second connecting rod 102, and an electric cylinder 103. The first connecting rod 101 is L-shaped, one end of the first connecting rod is fixedly arranged on the bottom plate of the foot rest 7, and the other end of the first connecting rod is hinged with one end of the second connecting rod 102; the second connecting rod 102 is strip-shaped, and the other end is hinged with the bottom plate of the seat plate 4; the electric cylinder 103 is hinged with the base plate of the seat plate 4 and the leg support 6 respectively.
Referring to fig. 3, the automatic armrest adjustment mechanism of the present embodiment includes a third link 201 and a fourth link 202. One end of the third connecting rod 201 is hinged with the backrest 3, and the other end is hinged with the fourth connecting rod 202; the other end of the fourth link 202 is hinged to the seat plate 4.
Referring to fig. 4, the backrest adjustment mechanism of the present embodiment includes a pair of recliner 301, a backrest motor 302, and a seven-star shaft 303. The seven-star shaft 303 is connected with a pair of angle adjusters 301, the pair of angle adjusters 301 are respectively connected to two sides of the backrest 3 through support rods 304, the pair of angle adjusters 301 are connected to two ends of the seven-star shaft 301, and the seven-star shaft 303 is connected with a backrest motor 302; the backrest motor 302 provides power to drive the seven-star shaft 303 to rotate, so as to drive the angle adjuster 301 to rotate, so that the backrest 3 is controlled by the backrest motor 302 to rotate, and meanwhile, the armrest 5 is driven to rotate.
In the embodiment, through the link mechanism, when the backrest 3 of the wheelchair is driven by the motor to rotate downwards and lie flat, the link mechanism of the armrest 5 deforms accordingly, so that two arms of a person are ensured not to be lifted up in the process of lying flat of the wheelchair, and the comfort of the human body is improved. Meanwhile, when the backrest 3 of the wheelchair lies flat, the armrests 5 can also lie flat, which can provide a good solution for the butt joint of the wheelchair and the bed. At present, the armrests 5 of the electric wheelchairs on the market are usually fixed or need to be lifted manually, the armrests are pulled out in a pulling mode, or the armrests are directly and manually added on the two sides of the wheelchairs, so that the intelligent degree of the wheelchairs is greatly reduced, and meanwhile, the wheelchair is very inconvenient for the disabled who take the wheelchairs.
Referring to fig. 5, the seat plate 4 of the present embodiment is further configured with a seat plate adjusting mechanism; the seat plate adjusting mechanism comprises a pair of guide rails, a lead screw 403, a slide block 404 and a lead screw motor 405; the pair of guide rails are respectively a first guide rail 401 and a second guide rail 402, and are arranged between the seat plate 4 and the wheelchair frame 8, a lead screw 403 is arranged between the pair of guide rails, the lead screw 403 is connected with a lead screw motor 405, a slider 404 is in threaded connection with the lead screw 403, two sides of the slider 404 are in sliding connection with the pair of guide rails, and the seat plate 4 is fixed on the slider 404. Thus, the seat plate 4 can slide on a pair of guide rails along with the slide block 404 under the action of the lead screw motor 405 to move back and forth.
The bottom of the seat board 4 is provided with a gravity center detection mechanism for adjusting the gravity center of the wheelchair when the wheelchair is laid down and lifted up again, and the safety and the stability of the wheelchair are guaranteed.
The wheelchair of the embodiment further comprises a terminal controller, wherein the terminal controller is respectively connected with the electric cylinder 103, the backrest motor 302 and the lead screw motor 405 and is used for controlling the electric cylinder 103, the backrest motor 302 and the lead screw motor 405 to work.
The embodiment works as follows:
(1) when the foot support leg support needs to be laid flat, an instruction is sent to the terminal controller, the electric cylinder 103 works after the terminal controller receives the signal, and the electric cylinder is adjusted to a proper position to stop
(2) When the backrest needs to lie down after sitting, the terminal controller sends an instruction to control the backrest motor 302 to lay down the backrest 3, meanwhile, the link mechanisms of the armrests 5 are gradually reduced along with the laying of the backrest 3 until the backrest 3 lies down and is in the same horizontal position with the backrest 3 at ordinary times, the controller sends an instruction to the screw motor 405 below the seat plate 4 according to information fed back by the gyroscope sensor and the acceleration sensor during the process that the backrest 3 lies down, the screw motor rotates, the seat plate 4 is continuously adjusted to move back and forth under the feedback information of the gyroscope sensor and the acceleration sensor, the position of the gravity center of the wheelchair is guaranteed to be unchanged, and the stability and the safety of the seat are guaranteed.
(3) When the deck chair lies flat completely, the terminal controller can control a plurality of motors to work together at the same time, so that the deck chair lies flat completely.
(4) Each part can also be controlled independently, only the legs and feet are lifted, or only the back is laid flat, and the control is carried out according to the requirements of users.
It should be understood that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" used in this specification are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "first", "second", "third" and "fourth" do not denote any sequence relationship, but are merely used for convenience of description. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description of the preferred embodiments is rather detailed and should not be taken as limiting the scope of the invention, which is intended to be covered by the appended claims, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein by the appended claims.
Claims (6)
1. A wheelchair with an automatic adjusting armrest capable of being completely laid comprises front wheels (1), rear wheels (2), a backrest (3), a seat board (4), armrests (5), leg supports (6), foot supports (7) and a wheelchair frame (8); the method is characterized in that: the device also comprises a leg support and foot support lifting mechanism, an automatic handrail adjusting mechanism and a backrest adjusting mechanism;
the leg support and foot support lifting mechanism is arranged among the leg support (6), the foot support (7) and the wheelchair frame (8), the armrest automatic adjusting mechanism is arranged among the backrest (3) and the seat plate (4), and the backrest adjusting mechanism is arranged among the backrest (3) and the wheelchair frame (8).
2. The wheelchair of claim 1 having a fully-reclined, self-adjusting armrest, wherein: the leg support and foot support lifting mechanism comprises a first connecting rod (101), a second connecting rod (102) and an electric cylinder (103);
the first connecting rod (101) is L-shaped, one end of the first connecting rod is fixedly arranged on the bottom plate of the foot support (7), and the other end of the first connecting rod is hinged with one end of the second connecting rod (102); the second connecting rod (102) is long-strip-shaped, and the other end of the second connecting rod is hinged with the bottom plate of the seat plate (4); the electric cylinder (103) is hinged with the base plate of the seat plate (4) and the base plate of the leg support (6) respectively.
3. The wheelchair of claim 1 having a fully-reclined, self-adjusting armrest, wherein: the automatic armrest adjusting mechanism comprises a third connecting rod (201) and a fourth connecting rod (202);
one end of the third connecting rod (201) is hinged with the backrest (3), and the other end of the third connecting rod is hinged with the fourth connecting rod (202); the other end of the fourth connecting rod (202) is hinged with the seat plate (4).
4. The wheelchair of claim 1 having a fully-reclined, self-adjusting armrest, wherein: the backrest adjusting mechanism comprises a pair of angle adjusters (301), a backrest motor (302) and a seven-star shaft (303);
the pair of angle adjusters (301) are connected to two ends of a seven-star shaft (303) and are respectively connected to two sides of the backrest (3) through support rods (304), and the seven-star shaft (303) is connected with a backrest motor (302); the backrest motor (302) provides power to drive the seven-star shaft (303) to rotate to drive the angle adjuster (301) to rotate, so that the backrest (3) is controlled by the backrest motor (302) to rotate, and meanwhile, the armrest (5) is driven to rotate.
5. The wheelchair of claim 1 having a fully-reclined, self-adjusting armrest, wherein: the seat plate (4) is also provided with a seat plate adjusting mechanism; the seat plate adjusting mechanism comprises a pair of guide rails, a lead screw (403), a sliding block (404) and a lead screw motor (405); the pair of guide rails are arranged between the seat plate (4) and the wheelchair frame (8), a lead screw (403) is arranged between the pair of guide rails, the lead screw (403) is connected with a lead screw motor (405), the sliding block (404) is in threaded connection with the lead screw (403) and two sides of the sliding block are in sliding connection with the pair of guide rails, and the seat plate (4) is fixed on the sliding block (404).
6. The wheelchair of claim 5 having a fully-reclined, self-adjusting armrest, wherein: the wheelchair is characterized in that a gravity center detection mechanism is arranged at the bottom of the seat plate (4), and the gravity center detection mechanism comprises a gyroscope sensor and an acceleration sensor and is used for detecting the gravity center in the wheelchair adjusting process in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120304516.0U CN215273982U (en) | 2021-02-03 | 2021-02-03 | Wheelchair with automatic adjusting armrests capable of being completely laid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120304516.0U CN215273982U (en) | 2021-02-03 | 2021-02-03 | Wheelchair with automatic adjusting armrests capable of being completely laid |
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| Publication Number | Publication Date |
|---|---|
| CN215273982U true CN215273982U (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120304516.0U Active CN215273982U (en) | 2021-02-03 | 2021-02-03 | Wheelchair with automatic adjusting armrests capable of being completely laid |
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| Country | Link |
|---|---|
| CN (1) | CN215273982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789681A (en) * | 2022-05-25 | 2022-07-26 | 山东汽车制造有限公司 | Folding seat |
-
2021
- 2021-02-03 CN CN202120304516.0U patent/CN215273982U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789681A (en) * | 2022-05-25 | 2022-07-26 | 山东汽车制造有限公司 | Folding seat |
| CN114789681B (en) * | 2022-05-25 | 2023-09-22 | 潍柴新能源商用车有限公司 | Folding chair |
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