CN218355252U - Back pad depth-adjustable seat structure based on parallelogram - Google Patents
Back pad depth-adjustable seat structure based on parallelogram Download PDFInfo
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- CN218355252U CN218355252U CN202222512059.1U CN202222512059U CN218355252U CN 218355252 U CN218355252 U CN 218355252U CN 202222512059 U CN202222512059 U CN 202222512059U CN 218355252 U CN218355252 U CN 218355252U
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Abstract
The utility model discloses a seat structure with adjustable back cushion depth based on parallelogram, which comprises chair legs, a first supporting mechanism, a second supporting mechanism, a cushion and a back cushion; the first supporting mechanism is arranged on the chair leg; the second supporting mechanism is arranged at the top end of the first supporting mechanism; the cushion is arranged at the bottom end of the second supporting mechanism; the back cushion is arranged at the top end of the second supporting mechanism; the second supporting mechanism is of a parallelogram structure and comprises a lower connecting piece, an upper connecting piece, a first front connecting piece, a first rear connecting piece and a first air spring; through being the parallelogram structure with second supporting mechanism, utilize first gas spring extension or shorten for second supporting mechanism swing back and forth, thereby can adjust back of the body pad around degree of depth and high position from top to bottom simultaneously, satisfy different users' comfort level requirement better, give the user high-quality experience and feel, this product overall structure is simple firm, uses convenience very.
Description
Technical Field
The utility model belongs to the technical field of the seat technique and specifically relates to indicate a back of body pad degree of depth adjustable seat structure based on parallelogram.
Background
The stability and comfort of the existing household learning chair are generally related to the hardness of the chair seat and the design of the chair frame. The existing chair frame mainly comprises a fixed chair frame and a movable chair frame, the fixed chair frame can not slide, the whole chair frame can only be moved, the use is inconvenient, the chair frame can be easily pushed in the using process by moving the chair frame through arranging a plurality of sliding wheels, the students can conveniently get up and lean on the chair frame, and therefore the market prospect of the movable learning chair in the prior art is better.
In the field of children's home learning articles, the existing children's learning chair and posture correcting chair can only meet the functions of a seat generally, and the adjustment of the height of the seat and the improvement of the comfort level of the chair back are one of the necessary functions of the seat.
The height of its cushion of present seat is general all adjustable, can satisfy different users ' needs, however, the back of the body pad of these seats all fixes on the stand, can only adjust the height position of back of the body pad, and the degree of depth position all is fixed unadjustable around to the back of the body pad, has not satisfied different users ' comfort level requirement, can't give the high-quality experience of user and feels, consequently, is necessary to improve present seat.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a seat structure with adjustable back cushion depth based on parallelogram, which can effectively solve the problem of non-adjustable back cushion front and back depth position of the existing seat.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a seat structure with an adjustable back cushion depth based on a parallelogram comprises seat legs, a first supporting mechanism, a second supporting mechanism, a seat cushion and a back cushion; the first supporting mechanism is arranged on the chair leg; the second supporting mechanism is arranged at the top end of the first supporting mechanism; the cushion is arranged at the bottom end of the second supporting mechanism; the back cushion is arranged at the top end of the second supporting mechanism; the second supporting mechanism is of a parallelogram structure and comprises a lower connecting piece, an upper connecting piece, a first front connecting piece, a first rear connecting piece and a first air spring; the top end of the lower connecting piece is provided with a first front hinge part and a first rear hinge part which are arranged in front and back; the upper connecting piece is positioned above the lower connecting piece, the upper connecting piece is provided with a second front hinge part and a second rear hinge part which are arranged in front and back, and the back cushion is arranged on the upper connecting piece and positioned at the front side of the upper connecting piece; the lower end of the first front connecting piece is hinged with the first front hinge part, and the upper end of the first front connecting piece is hinged with the second front hinge part; the first rear connecting piece is positioned at the rear side of the first front connecting piece and is parallel to each other, the lower end of the first rear connecting piece is hinged with the first rear hinged part, and the upper end of the first rear connecting piece is hinged with the second rear hinged part; the first air spring is positioned between the first front connecting piece and the first rear connecting piece, one end of the first air spring is hinged with the first rear hinging part, and the other end of the first air spring is hinged with the second front hinging part.
As a preferred scheme, a supporting piece is fixed on the lower connecting piece, the supporting piece extends forwards, and the cushion is fixed on the supporting piece, so that the structure is simple, and the assembly is convenient.
As a preferred scheme, the first supporting mechanism comprises a base, a second front connecting piece, a second rear connecting piece and a second gas spring; the base is arranged at the central position of the chair leg, the base is provided with a third front hinge part and a third rear hinge part, and the third rear hinge part is positioned at the rear lower part of the third front hinge part; the bottom end of the lower connecting piece is provided with a fourth front hinge part and a fourth rear hinge part which are arranged in front and back; the lower end of the second front connecting piece is hinged with the third front hinge part, and the upper end of the second front connecting piece is hinged with the fourth front hinge part; the second rear connecting piece is positioned at the rear side of the second front connecting piece and is parallel to each other, the lower end of the second rear connecting piece is hinged with the third rear hinged part, and the upper end of the second rear connecting piece is hinged with the fourth rear hinged part; the second gas spring is located between the second front connecting piece and the second rear connecting piece, one end of the second gas spring is hinged to the lower end of the second rear connecting piece, and the other end of the second gas spring is hinged to the fourth front hinged portion, so that the seat cushion can be adjusted in front and back and up and down positions, and convenience is brought to use.
As a preferred scheme, the chair foot is the star type including support and a plurality of truckle, and this support has a plurality of branches that are the radiation and extend, and the mounting hole has been seted up at the center of support, and this base cartridge is fixed in the mounting hole, and these a plurality of truckles set up in the tail end bottom of a plurality of branches to in the removal, the structure is firm.
As a preferred scheme, the second front connecting piece and the second rear connecting piece are of groove-shaped shell structures, so that the strength is good, and the structure is stable.
As a preferred scheme, the lower connecting piece, the first front connecting piece and the first rear connecting piece are all of groove-shaped shell structures, the strength is good, and the structure is stable.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
through being the parallelogram structure with second supporting mechanism, utilize first gas spring extension or shorten for second supporting mechanism swing back and forth, thereby can adjust back of the body pad around degree of depth and high position from top to bottom simultaneously, satisfy different users' comfort level requirement better, give the user high-quality experience and feel, this product overall structure is simple firm, uses convenience very.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;
FIG. 2 is a perspective view of the present invention in another angle;
fig. 3 is an exploded view of the preferred embodiment of the present invention;
fig. 4 is a cross-sectional view of a preferred embodiment of the invention.
The attached drawings indicate the following:
10. chair leg 11, support
111. Strut 112, mounting hole
12. Caster 20 and first support mechanism
21. Base 22, second front connector
23. Second rear connecting piece 24, second gas spring
201. Third front hinge 202 and third rear hinge
30. Second supporting mechanism 31, lower connecting piece
32. Upper connecting piece 33, first front connecting piece
34. First rear connecting piece 35, first gas spring
36. Supporting piece 301 and first front hinge part
302. First rear hinge 303 and second front hinge
304. Second rear hinge 305 and fourth front hinge
306. Fourth rear hinge part 40 and seat cushion
50. And (6) backing up.
Detailed Description
Referring to fig. 1 to 4, a specific structure of a preferred embodiment of the present invention is shown, which includes a chair leg 10, a first supporting mechanism 20, a second supporting mechanism 30, a seat cushion 40 and a back cushion 50.
The chair leg 10 includes a support 11 and a plurality of casters 12, the support 11 is in a star shape, and has a plurality of support rods 111 extending in a radial manner, a mounting hole 112 is opened at the center of the support 11, and the plurality of casters 12 are disposed at the bottom of the tail ends of the plurality of support rods 111.
The first supporting mechanism 20 is disposed on the chair leg 12; the second supporting mechanism 30 is arranged at the top end of the first supporting mechanism 20; specifically, the method comprises the following steps:
the second supporting mechanism 30 is a parallelogram structure, and comprises a lower connecting piece 31, an upper connecting piece 32, a first front connecting piece 33, a first rear connecting piece 34 and a first air spring 35; the top end of the lower connecting piece 31 is provided with a first front hinge part 301 and a first rear hinge part 302 which are arranged in front and back; the upper connecting member 32 is located above the lower connecting member 31, and the upper connecting member 32 has a second front hinge portion 303 and a second rear hinge portion 304 which are arranged in the front-rear direction; the lower end of the first front connecting piece 33 is hinged with a first front hinge part 301, and the upper end of the first front connecting piece 33 is hinged with a second front hinge part 303; the first rear connecting member 34 is positioned at the rear side of the first front connecting member 33 and parallel to each other, the lower end of the first rear connecting member 34 is hinged with the first rear hinge portion 302, and the upper end of the first rear connecting member 34 is hinged with the second rear hinge portion 304; the first air spring 35 is located between the first front connecting member 33 and the first rear connecting member 34, one end of the first air spring 35 is hinged to the first rear hinge portion 302, and the other end of the first air spring 35 is hinged to the second front hinge portion 303. And, a support member 36 is fixed to the lower connecting member 31, and the support member 36 extends forward. The lower connecting piece 31, the first front connecting piece 33 and the first rear connecting piece 34 are all of a groove-shaped shell structure, and are good in strength and stable in structure.
The first supporting mechanism 20 comprises a base 21, a second front connecting piece 22, a second rear connecting piece 23 and a second gas spring 24; the base 21 is arranged at the center position of the chair leg 10, the base 21 is provided with a third front hinge part 201 and a third rear hinge part 202, and the third rear hinge part 202 is positioned at the rear lower part of the third front hinge part 201; the bottom end of the lower connecting piece 31 is provided with a fourth front hinge part 305 and a fourth rear hinge part 306 which are arranged in the front and back; the lower end of the second front connecting piece 22 is hinged with the third front hinge part 201, and the upper end of the second front connecting piece 22 is hinged with the fourth front hinge part 305; the second rear connecting member 23 is positioned at the rear side of the second front connecting member 22 and parallel to each other, the lower end of the second rear connecting member 23 is hinged to the third rear hinge portion 202, and the upper end of the second rear connecting member 23 is hinged to the fourth rear hinge portion 306; the second gas spring 24 is located between the second front connecting member 22 and the second rear connecting member 23, one end of the second gas spring 24 is hinged to the lower end of the second rear connecting member 23, and the other end of the second gas spring 24 is hinged to the fourth front hinge portion 305. In this embodiment, the base 21 is inserted into the mounting hole 112 and fixed, and the second front connecting member 22 and the second rear connecting member 23 are both of a groove-shaped housing structure, so that the strength is good and the structure is stable.
The seat cushion 40 is arranged at the bottom end of the second support mechanism 30; in this embodiment, the cushion 40 is fixed to the support 36, and has a simple structure and is easy to assemble.
The back cushion 50 is disposed on the top end of the second supporting mechanism 30; in this embodiment, the back pad 50 is disposed on the upper connecting member 32 and located at the front side of the upper connecting member 32, so that the structure is simple and the assembly is convenient.
Detailed description the method of use of this example is as follows:
when the first air spring 35 is controlled to extend, the second supporting mechanism 30 swings forwards and downwards, so that the back cushion 50 moves forwards and downwards, and the depth of the back cushion 50 becomes shallow; when the first air spring 35 is controlled to be shortened, the second support mechanism 30 swings upward and rearward, so that the back pad 50 moves upward and rearward, thereby deepening the depth of the back pad 50.
When the second gas spring 24 is controlled to extend, the first support mechanism 20 swings forward and upward, so that the seat cushion 40 moves forward and upward; when the second gas spring 24 is controlled to shorten, the first support mechanism 20 swings rearward and downward, so that the seat cushion 40 moves rearward and downward. Thus, the front, rear, and height positions of the seat cushion 40 can be adjusted.
The utility model discloses a design focus lies in: through being the parallelogram structure with second supporting mechanism, utilize first gas spring extension or shorten for second supporting mechanism swing back and forth, thereby can adjust back of the body pad around degree of depth and high position from top to bottom simultaneously, satisfy different users' comfort level requirement better, give the user high-quality experience and feel, this product overall structure is simple firm, uses convenience very.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (6)
1. A seat structure with an adjustable back cushion depth based on a parallelogram comprises seat legs, a first supporting mechanism, a second supporting mechanism, a seat cushion and a back cushion; the first supporting mechanism is arranged on the chair leg; the second supporting mechanism is arranged at the top end of the first supporting mechanism; the cushion is arranged at the bottom end of the second supporting mechanism; the back cushion is arranged at the top end of the second supporting mechanism; the method is characterized in that: the second supporting mechanism is of a parallelogram structure and comprises a lower connecting piece, an upper connecting piece, a first front connecting piece, a first rear connecting piece and a first air spring; the top end of the lower connecting piece is provided with a first front hinge part and a first rear hinge part which are arranged in front and back; the upper connecting piece is positioned above the lower connecting piece, the upper connecting piece is provided with a second front hinge part and a second rear hinge part which are arranged in front and back, and the back cushion is arranged on the upper connecting piece and positioned at the front side of the upper connecting piece; the lower end of the first front connecting piece is hinged with the first front hinge part, and the upper end of the first front connecting piece is hinged with the second front hinge part; the first rear connecting piece is positioned at the rear side of the first front connecting piece and is parallel to each other, the lower end of the first rear connecting piece is hinged with the first rear hinged part, and the upper end of the first rear connecting piece is hinged with the second rear hinged part; the first air spring is positioned between the first front connecting piece and the first rear connecting piece, one end of the first air spring is hinged with the first rear hinging part, and the other end of the first air spring is hinged with the second front hinging part.
2. The parallelogram-based back cushion depth-adjustable seat structure of claim 1, wherein: the lower connecting piece is fixed with a supporting piece, the supporting piece extends forwards, and the cushion is fixed on the supporting piece.
3. The parallelogram-based back cushion depth-adjustable seat structure of claim 2, wherein: the first support mechanism comprises a base, a second front connecting piece, a second rear connecting piece and a second gas spring; the base is arranged at the central position of the chair leg, the base is provided with a third front hinge part and a third rear hinge part, and the third rear hinge part is positioned at the rear lower part of the third front hinge part; the bottom end of the lower connecting piece is provided with a fourth front hinge part and a fourth rear hinge part which are arranged in front and back; the lower end of the second front connecting piece is hinged with the third front hinge part, and the upper end of the second front connecting piece is hinged with the fourth front hinge part; the second rear connecting piece is positioned at the rear side of the second front connecting piece and is parallel to each other, the lower end of the second rear connecting piece is hinged with the third rear hinged part, and the upper end of the second rear connecting piece is hinged with the fourth rear hinged part; the second gas spring is positioned between the second front connecting piece and the second rear connecting piece, one end of the second gas spring is hinged with the lower end of the second rear connecting piece, and the other end of the second gas spring is hinged with the fourth front hinge part.
4. The parallelogram-based back cushion depth-adjustable seat structure of claim 3, wherein: the chair foot is the star type including support and a plurality of truckle, and this support is the star type, and it has a plurality of branches that are the radiation and extend, and the mounting hole has been seted up at the center of support, and this base cartridge is fixed in the mounting hole, and these a plurality of truckles set up in the tail end bottom of a plurality of branches.
5. The parallelogram-based back cushion depth-adjustable seat structure of claim 3, wherein: and the second front connecting piece and the second rear connecting piece are both of groove-shaped shell structures.
6. The parallelogram-based back cushion depth-adjustable seat structure of claim 3, wherein: the lower connecting piece, the first front connecting piece and the first rear connecting piece are all of groove-shaped shell structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222512059.1U CN218355252U (en) | 2022-09-22 | 2022-09-22 | Back pad depth-adjustable seat structure based on parallelogram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222512059.1U CN218355252U (en) | 2022-09-22 | 2022-09-22 | Back pad depth-adjustable seat structure based on parallelogram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218355252U true CN218355252U (en) | 2023-01-24 |
Family
ID=84952379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222512059.1U Active CN218355252U (en) | 2022-09-22 | 2022-09-22 | Back pad depth-adjustable seat structure based on parallelogram |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218355252U (en) |
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2022
- 2022-09-22 CN CN202222512059.1U patent/CN218355252U/en active Active
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