CN214180834U - Auxiliary lifting device for wheelchair - Google Patents
Auxiliary lifting device for wheelchair Download PDFInfo
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- CN214180834U CN214180834U CN202022958271.1U CN202022958271U CN214180834U CN 214180834 U CN214180834 U CN 214180834U CN 202022958271 U CN202022958271 U CN 202022958271U CN 214180834 U CN214180834 U CN 214180834U
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- backup pad
- lifting device
- rod
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Abstract
The utility model discloses a elevating gear is assisted to wheelchair, including last backup pad and bottom suspension fagging, connect scissors lifter and the lift drive assembly that drives the scissors lifter lift between last backup pad and bottom suspension fagging, the scissors lifter is including being scissors form and normal running fit's drive rod and driven rod, driven rod lower extreme and bottom suspension fagging normal running fit, upper end and last backup pad normal running fit, drive rod upper end and last backup pad normal running fit, lower extreme are drive end and bottom suspension fagging normal running fit, lift drive assembly is used for driving the drive end normal running of drive rod. The utility model discloses a turn into the elevating movement of scissors lifter with the vertical linear motion of the initiative end of initiative pole, do benefit to and reduce the vertical installation space between backup pad and the bottom suspension fagging, improve elevating gear's compact structure nature, do benefit to the height of adjusting wheelchair seat through this structure to adaptation user's different use scenes.
Description
Technical Field
The utility model belongs to the technical field of the wheelchair, in particular to wheelchair auxiliary lifting device.
Background
There is a need for wheelchair improvement and improvement in quality of life for elderly people with impaired mobility. The existing wheelchair only has a function of riding instead of a walking function and does not have a function of adjusting the lifting, and cannot adapt to different use scenes of users.
In view of the above, there is a need for a wheelchair-assisted lifting device by which the height of a seat cushion can be adjusted to fit different usage scenarios.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a supplementary elevating gear of wheelchair through the height of the adjustable seat cushion of the device to the different use scenes of adaptation.
The utility model discloses a lifting device is assisted to wheelchair, including last backup pad and bottom suspension fagging, connect in scissors lifter and the lift drive assembly that drives the scissors lifter between last backup pad and the bottom suspension fagging and go up and down, the scissors lifter is including being scissors form and normal running fit's drive rod and driven rod, driven rod lower extreme and bottom suspension fagging normal running fit, upper end and last backup pad normal running fit, drive rod upper end and last backup pad normal running fit, lower extreme are drive end and bottom suspension fagging normal running fit, the lift drive assembly is used for driving the drive end normal running of drive rod.
Furthermore, the lifting driving assembly comprises a screw rod longitudinally extending on the lower supporting plate and a rotary driving piece driving the screw rod to rotate, a sliding block is arranged at the lower end of the driving rod in a rotating fit mode, the sliding block is longitudinally slidably arranged on the lower supporting plate, and the sliding block is in threaded transmission fit with the screw rod.
Furthermore, the scissors lifting rods are transversely provided with two groups.
Furthermore, the transverse two ends of the sliding block are respectively in running fit with driving rods in the two groups of shear lifting rods, and the screw rod is in threaded transmission fit with the transverse center of the sliding block.
Furthermore, two stroke stop blocks used for limiting the sliding stroke of the sliding block are longitudinally arranged on the lower supporting plate, and the sliding block is located between the two stroke stop blocks in the longitudinal direction.
Further, two sliding rails are longitudinally arranged on the lower supporting plate, and two ends of the sliding block are respectively arranged on the two sliding rails in a sliding fit mode.
Furthermore, a sliding groove is longitudinally formed in the sliding rail, and two transverse ends of the sliding block are respectively slidably mounted in the sliding groove.
Further, the transverse two ends of the sliding block are connected with sliding shafts, the sliding shafts are in running fit with the driving end of the driving rod, and the sliding shafts are located in the sliding grooves and in sliding fit with the sliding grooves.
Furthermore, the sliding groove is of a transverse through structure, the sliding shaft penetrates through the sliding groove to be in running fit with the roller, and the roller is supported on the lower supporting plate or the sliding rail in a rolling mode.
The utility model has the advantages that:
the utility model converts the longitudinal linear motion of the active end of the active rod into the lifting motion of the scissor lifting rod, thus being beneficial to reducing the vertical installation space between the upper supporting plate and the lower supporting plate, improving the structural compactness of the lifting device, being beneficial to adjusting the height of the wheelchair seat through the structure, and adapting to different use scenes of users; in addition, the rotating motion of the screw is converted into the lifting motion of the scissor lifting rod, so that the lifting stability is good, and the lifting height can be accurately controlled;
the utility model discloses in be provided with two sets of scissors lifter, do benefit to the connection stability who improves upper and lower backup pad, formed frame construction between two drive rods, slider and the last backup pad moreover, can improve whole elevating gear's structural stability, but this structure goes up and down through two scissors elevating gear synchronous of slider synchronous drive moreover, improves the stationarity that the backup pad goes up and down.
Drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of a lifting device;
FIG. 2 is a schematic side view of the lifting device;
Detailed Description
This embodiment provides an automatic machine of cooking, including last backup pad 101 and bottom suspension fagging 102, connect in scissors lifter and the lift drive assembly that drives the scissors lifter lift between last backup pad and the bottom suspension fagging, the scissors lifter is including being scissors form and normal running fit's initiative pole 103 and driven lever 104, driven lever lower extreme and bottom suspension fagging normal running fit, upper end and last backup pad normal running fit, initiative pole upper end and last backup pad normal running fit, lower extreme are initiative end and bottom suspension fagging normal running fit, lift drive assembly is used for driving the initiative end normal running of initiative pole. The longitudinal direction and the transverse direction are two directions which are vertical to each other in the horizontal direction, the longitudinal direction is the direction of the wheelchair by taking the wheelchair as reference, and the transverse direction is the left-right direction of the wheelchair; go up and be used for installing wheelchair seat in the backup pad, in order to realize the lift of seat, combine the figure to show, the drive end that lift drive assembly is used for sharp drive driving rod slides, drive the corresponding longitudinal sliding in upper end of driven rod, and then adjust the intersection angle of driving rod and driven rod, adjust the distance between backup pad and the bottom suspension fagging, this structure turns into the elevating movement of scissors lifter through the longitudinal rectilinear motion with the drive end of driving rod, do benefit to and reduce the vertical installation space between backup pad and the bottom suspension fagging, improve elevating gear's compact structure, do benefit to the height of adjusting wheelchair seat through this structure, use the scene with adaptation user's difference.
In this embodiment, the lifting driving assembly includes a screw 105 mounted on the lower support plate and extending longitudinally, and a rotary driving member 106 for driving the screw to rotate, a sliding block 107 is rotatably fitted at the lower end of the driving rod, the sliding block is longitudinally slidably mounted on the lower support plate, and the sliding block is in threaded transmission fit with the screw. It is shown in the combined drawing, the screw rod both ends are passed through bearing normal running fit and are installed on the bearing frame, the bearing frame is installed on the bottom suspension fagging, the rotation driving piece adopts the motor, wherein the motor is installed on the bottom suspension fagging, the motor passes through the reduction gear with power take off to the screw rod on and the drive screw rotates, drive slider is along bottom suspension fagging longitudinal sliding when the screw rod rotates, and then it slides to drive the initiative pole lower extreme, realize adjusting the purpose of initiative pole and driven lever scissors contained angle, this structure turns into the up-and-down motion of scissors lifter with the rotary motion of screw rod, its lift stationarity is good, do benefit to accurate control lifting height.
In this implementation, the scissors lifter is transversely provided with two sets. As shown in the attached drawing, the two groups of scissors lifting rods respectively form four supporting points for the upper supporting plate and the lower supporting plate, so that the connection stability of the upper supporting plate and the lower supporting plate is improved.
In the implementation, the transverse two ends of the sliding block are respectively in running fit with the driving rods in the two groups of shear lifting rods, and the screw rod is in threaded transmission fit with the transverse center of the sliding block. It is shown in the attached drawing that combines, the slider is the shaft-like structure of rectangular shape, and wherein the slider is connected between two drive rods, has formed frame construction between two drive rods, slider and the last backup pad, can improve whole elevating gear's structural stability, and this structure can go up and down in step through two scissors elevating gear of a synchronous drive of slider in addition, improves the stationarity that the backup pad goes up and down.
In this embodiment, two travel stops 108 for limiting the sliding travel of the slider are longitudinally arranged on the lower support plate, and the slider is located between the two travel stops in the longitudinal direction. As shown in the attached drawings, in the present embodiment, the stroke stop block is made of i-steel, the i-steel is welded on the lower support plate, and other existing profiles may be used for the stroke stop block, which is not specifically described; the two stroke stop blocks are used for limiting the longitudinal front and back sliding stroke of the sliding block, the lifting height of the upper supporting plate and the lower supporting plate is favorably controlled, and buffer rubber can be attached to one side, close to the sliding block, of the stroke stop blocks so as to prevent the sliding block from rigidly colliding with the stroke stop blocks.
In this implementation, two slide rails 109 are longitudinally installed on the lower support plate, and two ends of the slide block are respectively installed on the two slide rails in a sliding fit manner. As shown in the attached drawings, in the present embodiment, the slide rail is an angle steel, a straight edge of the angle steel is welded on the lower support plate, and the slide rail may also adopt structures such as i-steel or channel steel, which are not specifically described again; the slide rail realizes the directional sliding of the slide block, and the motion precision of the slide block is improved.
In this implementation, the sliding rail is longitudinally provided with a sliding groove 109a, and two transverse ends of the sliding block are respectively slidably mounted in the sliding groove. As shown in the attached drawing, the vertical plate of the sliding rail is provided with sliding grooves, and the two sliding grooves support the two transverse ends of the sliding block and are also used for guiding the sliding direction of the sliding block.
In this embodiment, the sliding block is connected with sliding shafts 110 at two transverse ends, the sliding shafts are in running fit with the driving end of the driving rod, and the sliding shafts are located in the sliding grooves and in sliding fit with the sliding grooves. As shown in the attached drawing, the sliding shaft is a cylindrical shaft, the sliding shaft is sleeved in the driving end of the driving rod, so that the sliding shaft and the driving rod form a rotating fit, and the sliding shaft is located in the sliding groove, so that friction between the sliding shaft and the sliding groove in the sliding process can be reduced.
In this implementation, the chute is a transverse through structure, the sliding shaft passes through the chute and is in running fit with the roller 111, and the roller is supported on the lower support plate or the sliding rail in a rolling manner. The roller can adopt a rubber wheel or a bearing, the roller rolls and is supported on the horizontal edge of the sliding rail, and the roller rolls horizontally along the sliding rail in the sliding process of the sliding block, so that the friction resistance between the sliding block and the sliding rail can be reduced. Corresponding sliding rails and sliding blocks are also arranged between the upper end of the driven rod and the upper supporting plate, the upper end of the driven rod is the same as the sliding fit structure of the upper supporting plate and the sliding fit structure of the lower end of the driving rod and the lower supporting plate, and the upper end of the driven rod and the upper supporting plate are in a vertical mirror image relationship with each other and are not described in detail;
finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (9)
1. A wheelchair auxiliary lifting device is characterized in that: including last backup pad and bottom suspension fagging, connect in scissors lifter and the lift drive subassembly that drives the scissors lifter lift between last backup pad and bottom suspension fagging, the scissors lifter is including being scissors form and normal running fit's drive rod and driven rod, driven rod lower extreme and bottom suspension fagging normal sliding fit, upper end and last backup pad normal sliding fit, drive rod upper end and last backup pad normal sliding fit, lower extreme are drive end and bottom suspension fagging normal sliding fit, lift drive subassembly is used for driving the drive end normal sliding of drive rod.
2. The wheelchair assisted lifting device of claim 1, wherein: the lifting driving assembly comprises a screw rod longitudinally extending on the lower supporting plate and a rotary driving piece driving the screw rod to rotate, a sliding block is arranged at the lower end of the driving rod in a rotating fit mode, the sliding block is longitudinally slidably mounted on the lower supporting plate, and the sliding block is in threaded transmission fit with the screw rod.
3. The wheelchair assisted lifting device of claim 2, wherein: two groups of scissors lifting rods are transversely arranged.
4. The wheelchair assisted lifting device of claim 3, wherein: the transverse two ends of the sliding block are respectively in running fit with driving rods in the two groups of shear lifting rods, and the screw rod is in threaded transmission fit with the transverse center of the sliding block.
5. The wheelchair assisted lifting device of claim 2, wherein: two stroke stop blocks used for limiting the sliding stroke of the sliding block are longitudinally arranged on the lower supporting plate, and the sliding block is located between the two stroke stop blocks in the longitudinal direction.
6. The wheelchair assisted lifting device of claim 4, wherein: two sliding rails are longitudinally arranged on the lower supporting plate, and two ends of the sliding block are respectively arranged on the two sliding rails in a sliding fit mode.
7. The wheelchair assisted lifting device of claim 6, wherein: the sliding rail is longitudinally provided with a sliding groove, and the two transverse ends of the sliding block are respectively slidably arranged in the sliding groove.
8. The wheelchair assisted lifting device of claim 7, wherein: the transverse two ends of the sliding block are connected with sliding shafts, the sliding shafts are in running fit with the driving end of the driving rod, and the sliding shafts are located in the sliding grooves and in sliding fit with the sliding grooves.
9. The wheelchair assisted lifting device of claim 8, wherein: the sliding groove is of a transverse through structure, the sliding shaft penetrates through the sliding groove to be in running fit with the roller, and the roller is supported on the lower supporting plate or the sliding rail in a rolling mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022958271.1U CN214180834U (en) | 2020-12-11 | 2020-12-11 | Auxiliary lifting device for wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022958271.1U CN214180834U (en) | 2020-12-11 | 2020-12-11 | Auxiliary lifting device for wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214180834U true CN214180834U (en) | 2021-09-14 |
Family
ID=77651634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022958271.1U Active CN214180834U (en) | 2020-12-11 | 2020-12-11 | Auxiliary lifting device for wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214180834U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114569359A (en) * | 2022-03-01 | 2022-06-03 | 上海联影医疗科技股份有限公司 | Liftable support device |
| CN115494374A (en) * | 2022-10-18 | 2022-12-20 | 苏州欧菲特电子股份有限公司 | Multi-station online circuit board test station |
-
2020
- 2020-12-11 CN CN202022958271.1U patent/CN214180834U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114569359A (en) * | 2022-03-01 | 2022-06-03 | 上海联影医疗科技股份有限公司 | Liftable support device |
| CN114569359B (en) * | 2022-03-01 | 2023-09-05 | 上海联影医疗科技股份有限公司 | Liftable supporting device |
| CN115494374A (en) * | 2022-10-18 | 2022-12-20 | 苏州欧菲特电子股份有限公司 | Multi-station online circuit board test station |
| CN115494374B (en) * | 2022-10-18 | 2023-10-10 | 苏州欧菲特电子股份有限公司 | Multi-station online circuit board testing station |
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