CN218652280U - Angle adjusting mechanism for wheelchair seat - Google Patents
Angle adjusting mechanism for wheelchair seat Download PDFInfo
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- CN218652280U CN218652280U CN202222508150.6U CN202222508150U CN218652280U CN 218652280 U CN218652280 U CN 218652280U CN 202222508150 U CN202222508150 U CN 202222508150U CN 218652280 U CN218652280 U CN 218652280U
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- movable arm
- upper base
- push rod
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Abstract
The utility model provides an angle adjustment mechanism for wheelchair seat, includes base down, be connected with scissors lifting unit on the base down, be connected with the top base on the scissors lifting unit, be connected with angle adjustment assembly on the top base. The utility model discloses an angle adjustment mechanism can install in the below of most wheelchair seats, not only can realize the upper and lower altitude mixture control of wheelchair seats, can also make the seat realize the function of lying backwards to can realize the regulation of lying backwards angle, provide better comfort for the people who need sit the wheelchair.
Description
Technical Field
The utility model belongs to the technical field of the wheelchair improves, concretely relates to an angle adjustment mechanism for wheelchair seat.
Background
Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The wheelchair not only meets the requirements of physical disabilities and mobility-handicapped people for riding instead of walking, but also is more important for family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair.
However, most of the conventional wheelchair seats are fixed, and some of the seats have a function of ascending and descending, but the seats do not have a function of reclining. If the wheelchair seat can be lifted and reclined, users who have poor waist or need to have a rest on the wheelchair seat frequently can have better experience, and discomfort can be reduced.
Accordingly, an angle adjustment mechanism for a wheelchair seat has been devised to solve the above problems.
It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention, and is set forth for facilitating understanding of those skilled in the art. These solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present invention.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide an angle adjusting mechanism for a wheelchair seat.
In order to achieve the above objects and other related objects, the present invention provides a technical solution: an angle adjusting mechanism for a wheelchair seat comprises a lower base, wherein a scissors lifting assembly is connected onto the lower base, an upper base is connected onto the scissors lifting assembly, and an angle adjusting assembly is connected onto the upper base;
the angle adjusting assembly comprises a mounting rack, the rear end of the mounting rack is rotatably connected with the rear end of the upper base, a left adjusting arm and a right adjusting arm are arranged at the front end of the upper mounting rack, and the left adjusting arm and the right adjusting arm are respectively arranged on two sides of the upper base in a front-back sliding manner;
a first electric push rod is arranged on the upper base, a motor end of the first electric push rod is rotatably connected with the front end of the upper base, a push rod end of the first electric push rod is connected with a first transmission assembly, and two ends of the first transmission assembly are respectively in transmission connection with the mounting frame and the upper base;
when the rod part of the first electric push rod extends out, the angle between the mounting frame and the upper base is increased, and when the rod part of the first electric push rod retracts, the angle between the mounting frame and the upper base is reduced.
The preferable technical scheme is as follows: the scissor lifting assembly comprises a telescopic frame, the telescopic frame comprises a first movable arm and a second movable arm on the left side, and a third movable arm and a fourth movable arm on the right side, the first movable arm and the second movable arm are arranged in a crossed mode and are in rotary connection at the crossed positions, and the third movable arm and the fourth movable arm are arranged in a crossed mode and are in rotary connection at the crossed positions;
the upper end of the first movable arm and the upper end of the third movable arm are rotatably connected with the rear end of the upper base, the lower end of the first movable arm and the lower end of the third movable arm are respectively arranged on two sides of the lower base in a front-back sliding manner, the upper end of the second movable arm and the upper end of the fourth movable arm are respectively arranged on two sides of the upper base in a front-back sliding manner, and the lower end of the second movable arm and the lower end of the fourth movable arm are both rotatably connected with the rear end of the lower base;
a second electric push rod is arranged on the lower base, a motor end of the second electric push rod is rotatably connected with the front end of the lower base, a push rod end of the second electric push rod is connected with a second transmission assembly, and two ends of the second transmission assembly are respectively in transmission connection with the telescopic frame and the lower base;
when the rod part of the second electric push rod extends out, the telescopic frame is in a stretching state, the height of the telescopic frame is increased, and when the rod part of the second electric push rod retracts, the telescopic frame is in a contracting state, and the height of the telescopic frame is decreased.
The preferable technical scheme is as follows: go up the front end of mounting bracket and include left installation arm and right installation arm, the front end of left side installation arm rotates to be connected the middle part of left side regulating arm, the front end of right side installation arm rotates to be connected the middle part of right side regulating arm.
The preferable technical scheme is as follows: the both sides of upper base all are provided with outer spout, the lower extreme of left side regulating arm with the lower extreme of right side regulating arm sets up respectively in the outer spout of upper base both sides.
The preferable technical scheme is as follows: the both sides of upper base all are provided with interior spout, the upper end of second digging arm with the upper end of fourth digging arm sets up respectively in the interior spout of upper base both sides.
The preferable technical scheme is as follows: the lower base is provided with inner chutes on two sides, and the lower end of the first movable arm and the lower end of the third movable arm are respectively arranged in the inner chutes on two sides of the lower base.
The preferable technical scheme is as follows: the telescopic frame is provided with a cross rod, and two ends of the cross rod are respectively arranged on the second movable arm and the fourth movable arm.
Because of the application of the technical scheme, compared with the prior art, the utility model the advantage that has is:
the utility model discloses an angle adjustment mechanism can install in the below of most wheelchair seats, not only can realize the upper and lower altitude mixture control of wheelchair seats, can also make the seat realize the function of lying backwards to can realize the regulation of lying backwards angle, provide better comfort for the people who need sit the wheelchair.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Fig. 2 is a schematic view of the assembly of the upper base and the angle adjustment assembly.
Fig. 3 is a schematic view of the assembly of the lower base and the scissors lift assembly.
Fig. 4 is a schematic view of an upper base.
Fig. 5 is a schematic view of a mounting bracket.
Fig. 6 is a schematic view of the angle adjustment assembly folded.
Fig. 7 is a schematic view of the overall folding of the present invention.
Fig. 8 is a schematic view of the installation position of the present invention on a wheelchair.
In the above figures, 1, a lower base; 2. an angle adjustment assembly; 21. a mounting frame; 211. a left mounting arm; 212. a right mounting arm; 22. a left adjustment arm; 23. a right adjustment arm; 24. a first electric push rod; 25. a first transmission assembly; 26. an outer chute; 3. an upper base; 4. a scissor lift assembly; 41. a telescopic frame; 411. a first movable arm; 412. a second movable arm; 413. a third movable arm; 414. a fourth movable arm; 42. a second electric push rod; 43. a second transmission assembly; 44. a cross bar.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 to 8. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely required to be horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected" and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediary, and a communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): as shown in fig. 1 to 7, an angle adjusting mechanism for a wheelchair seat comprises a lower base 1, a scissors lifting assembly 4 is connected to the lower base 1, an upper base 3 is connected to the scissors lifting assembly 4, and an angle adjusting assembly 2 is connected to the upper base 3; the angle adjusting assembly 2 comprises a mounting frame 21, the rear end of the mounting frame 21 is rotatably connected with the rear end of the upper base 3, a left adjusting arm 22 and a right adjusting arm 23 are arranged at the front end of the upper mounting frame 21, and the left adjusting arm 22 and the right adjusting arm 23 are respectively arranged on two sides of the upper base 3 in a front-back sliding manner; a first electric push rod 24 is arranged on the upper base 3, the motor end of the first electric push rod 24 is rotatably connected with the front end of the upper base 3, the push rod end of the first electric push rod 24 is connected with a first transmission component 25, and two ends of the first transmission component 25 are respectively in transmission connection with the mounting frame 21 and the upper base 3; when the rod portion of the first electric putter 24 is extended, the angle between the mounting frame 21 and the upper base 3 is increased, and when the rod portion of the first electric putter 24 is retracted, the angle between the mounting frame 21 and the upper base 3 is decreased.
The scissors lifting assembly 4 comprises a telescopic frame 41, the telescopic frame 41 comprises a first movable arm 411 and a second movable arm 412 on the left side, a third movable arm 413 and a fourth movable arm 414 on the right side, the first movable arm 411 and the second movable arm 412 are arranged in a crossed mode and are in crossed position rotating connection, and the third movable arm 413 and the fourth movable arm 414 are arranged in a crossed mode and are in crossed position rotating connection; the upper end of the first movable arm 411 and the upper end of the third movable arm 413 are both rotatably connected with the rear end of the upper base 3, the lower end of the first movable arm 411 and the lower end of the third movable arm 413 are respectively arranged on both sides of the lower base 1 in a front-back sliding manner, the upper end of the second movable arm 412 and the upper end of the fourth movable arm 414 are respectively arranged on both sides of the upper base 3 in a front-back sliding manner, and the lower end of the second movable arm 412 and the lower end of the fourth movable arm 414 are both rotatably connected with the rear end of the lower base 1; a second electric push rod 42 is arranged on the lower base 1, a motor end of the second electric push rod 42 is rotatably connected with the front end of the lower base 1, a push rod end of the second electric push rod 42 is connected with a second transmission assembly 43, and two ends of the second transmission assembly 43 are respectively in transmission connection with the telescopic frame 41 and the lower base 1; when the rod of the second electric putter 42 is extended, the telescopic frame 41 is extended and the height thereof is increased, and when the rod of the second electric putter 42 is retracted, the telescopic frame 41 is contracted and the height thereof is decreased.
The front end of the upper mounting frame 21 comprises a left mounting arm 211 and a right mounting arm 212, the front end of the left mounting arm 211 is rotatably connected to the middle of the left adjusting arm 22, and the front end of the right mounting arm 212 is rotatably connected to the middle of the right adjusting arm 23. Outer sliding grooves 26 are formed in two sides of the upper base 3, and the lower end of the left adjusting arm 22 and the lower end of the right adjusting arm 23 are respectively arranged in the outer sliding grooves 26 in the two sides of the upper base 3. The two sides of the upper base 3 are both provided with inner sliding grooves, and the upper end of the second movable arm 412 and the upper end of the fourth movable arm 414 are respectively arranged in the inner sliding grooves on the two sides of the upper base 3. The both sides of lower base 1 all are provided with interior spout, and the lower extreme of first digging arm 411 and the lower extreme of third digging arm 413 set up respectively in the interior spout of lower base 1 both sides.
The preferred embodiment is: the telescopic frame 41 is provided with a cross bar 44, and two ends of the cross bar 44 are respectively arranged on the second movable arm 412 and the fourth movable arm 414.
The principle is as follows: start second electric putter 42, it is flexible to drive expansion bracket 41 through second drive assembly 43, expansion bracket 41 is when flexible change, the lower extreme of first digging arm 411 and the lower extreme of third digging arm 413 make a round trip to slide in the interior spout of base 1 both sides down, the upper end of second digging arm 412 and the upper end of fourth digging arm 414 make a round trip to slide in the interior spout of base 3 both sides up, realize the change of expansion bracket 41 height, the regulation of height about also having realized the seat, when the front end of expansion bracket 41 slides to base 1 foremost down, expansion bracket 41 realizes folding. Start first electric putter 24, drive the angle change between mounting bracket 21 and the upper base 3 through first drive assembly 25, during the angle change, mounting bracket 21 then takes left regulating arm 22 and right regulating arm 23 to make a round trip to slide in the outer spout 26 of upper base 3 both sides, the change of regulating arm and the 23 inclination of right regulating arm is done in the realization, the regulation of the angle of just also having realized the seat is faced back backward, left regulating arm 22 slides when the outer spout 26 foremost of upper base 3 with right regulating arm 23, angle adjusting part 2 realizes foldingly. The lifting height range of the wheelchair and the backward bending angle range of the seat can be designed according to the actual design, the lifting height range of the wheelchair is preferably 0-360mm, and the backward bending angle range of the seat is preferably 0-50 degrees.
The utility model discloses can be through top base and lower pedestal mounting in the below of most wheelchair seat, the mounted position is shown in figure 8, can realize the oscilaltion and the seat angle modulation function of seat through control system operation electric putter during the use. Various mounting holes and related structures required for mounting the mechanism and the wheelchair seat are not described in detail and are not regarded as main protection contents of the invention.
The utility model discloses an angle adjustment mechanism can install in the below of most wheelchair seats, not only can realize the upper and lower altitude mixture control of wheelchair seats, can also make the seat realize the function of facing backward to can realize the regulation of angle of facing backward, provide better comfort for the people who need sit the wheelchair.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. An angle adjustment mechanism for a wheelchair seat, comprising: the scissors device comprises a lower base (1), wherein a scissors lifting component (4) is connected to the lower base (1), an upper base (3) is connected to the scissors lifting component (4), and an angle adjusting component (2) is connected to the upper base (3);
the angle adjusting assembly (2) comprises an installation frame (21), the rear end of the installation frame (21) is rotatably connected with the rear end of the upper base (3), a left adjusting arm (22) and a right adjusting arm (23) are arranged at the front end of the installation frame (21), and the left adjusting arm (22) and the right adjusting arm (23) are respectively arranged on two sides of the upper base (3) in a front-back sliding manner;
a first electric push rod (24) is arranged on the upper base (3), the motor end of the first electric push rod (24) is rotatably connected with the front end of the upper base (3), the push rod end of the first electric push rod (24) is connected with a first transmission assembly (25), and two ends of the first transmission assembly (25) are respectively in transmission connection with the mounting frame (21) and the upper base (3);
when the rod part of the first electric push rod (24) extends out, the angle between the mounting frame (21) and the upper base (3) is increased, and when the rod part of the first electric push rod (24) retracts, the angle between the mounting frame (21) and the upper base (3) is reduced.
2. An angle adjustment mechanism for a wheelchair seat as claimed in claim 1, wherein:
the scissors lifting assembly (4) comprises an expansion bracket (41), the expansion bracket (41) comprises a first movable arm (411) and a second movable arm (412) on the left side, a third movable arm (413) and a fourth movable arm (414) on the right side, the first movable arm (411) and the second movable arm (412) are arranged in a crossed mode and are in rotary connection at the crossed position, and the third movable arm (413) and the fourth movable arm (414) are arranged in a crossed mode and are in rotary connection at the crossed position;
the upper end of the first movable arm (411) and the upper end of the third movable arm (413) are both rotatably connected with the rear end of the upper base (3), the lower end of the first movable arm (411) and the lower end of the third movable arm (413) are respectively arranged on two sides of the lower base (1) in a front-back sliding manner, the upper end of the second movable arm (412) and the upper end of the fourth movable arm (414) are respectively arranged on two sides of the upper base (3) in a front-back sliding manner, and the lower end of the second movable arm (412) and the lower end of the fourth movable arm (414) are both rotatably connected with the rear end of the lower base (1);
a second electric push rod (42) is arranged on the lower base (1), a motor end of the second electric push rod (42) is rotatably connected with the front end of the lower base (1), a push rod end of the second electric push rod (42) is connected with a second transmission assembly (43), and two ends of the second transmission assembly (43) are respectively in transmission connection with the telescopic frame (41) and the lower base (1);
when the rod part of the second electric push rod (42) extends out, the telescopic frame (41) is in an extension state and the height is increased, and when the rod part of the second electric push rod (42) retracts, the telescopic frame (41) is in a retraction state and the height is decreased.
3. An angle adjustment mechanism for a wheelchair seat as claimed in claim 2, wherein: the front end of mounting bracket (21) includes left installation arm (211) and right installation arm (212), the front end of left side installation arm (211) is rotated and is connected the middle part of left side regulating arm (22), the front end of right side installation arm (212) is rotated and is connected the middle part of right side regulating arm (23).
4. An angle adjustment mechanism for a wheelchair seat as claimed in claim 3, wherein: the both sides of upper base (3) all are provided with outer spout (26), the lower extreme of left side regulating arm (22) with the lower extreme of right side regulating arm (23) sets up respectively in outer spout (26) of upper base (3) both sides.
5. An angle adjustment mechanism for a wheelchair seat as claimed in claim 4, wherein: the two sides of the upper base (3) are both provided with inner chutes, and the upper ends of the second movable arm (412) and the fourth movable arm (414) are respectively arranged in the inner chutes on the two sides of the upper base (3).
6. An angle adjustment mechanism for a wheelchair seat as claimed in claim 5, wherein: the both sides of lower base (1) all are provided with interior spout, the lower extreme of first digging arm (411) with the lower extreme of third digging arm (413) sets up respectively in the interior spout of lower base (1) both sides.
7. An angle adjustment mechanism for a wheelchair seat as claimed in claim 6, wherein: a cross rod (44) is arranged on the telescopic frame (41), and two ends of the cross rod (44) are respectively arranged on the second movable arm (412) and the fourth movable arm (414).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222508150.6U CN218652280U (en) | 2022-09-20 | 2022-09-20 | Angle adjusting mechanism for wheelchair seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222508150.6U CN218652280U (en) | 2022-09-20 | 2022-09-20 | Angle adjusting mechanism for wheelchair seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218652280U true CN218652280U (en) | 2023-03-21 |
Family
ID=85560219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222508150.6U Active CN218652280U (en) | 2022-09-20 | 2022-09-20 | Angle adjusting mechanism for wheelchair seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218652280U (en) |
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2022
- 2022-09-20 CN CN202222508150.6U patent/CN218652280U/en active Active
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