CN215959094U - Back-rest inclined structure of learning chair - Google Patents
Back-rest inclined structure of learning chair Download PDFInfo
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- CN215959094U CN215959094U CN202122214199.6U CN202122214199U CN215959094U CN 215959094 U CN215959094 U CN 215959094U CN 202122214199 U CN202122214199 U CN 202122214199U CN 215959094 U CN215959094 U CN 215959094U
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Abstract
The utility model relates to the technical field of learning chairs, in particular to a backrest inclination structure of a learning chair, which comprises a chair body, wherein the chair body comprises a cushion, an arc-shaped back cushion for supporting the back, a supporting seat vertically arranged at the bottom of the arc-shaped back cushion, and an installation seat arranged at the bottom of the cushion and rotationally matched with the supporting seat, wherein a rotating cavity for accommodating the end part of the supporting seat to be embedded is formed in the installation seat, a rotating assembly is arranged at one end of the supporting seat and rotationally embedded in the rotating cavity, after the arc-shaped back cushion connected with the supporting seat is adjusted to a required angle, a driving rod can be prevented from rotating through a fastening adjusting rod with a locking rod, the arc-shaped back cushion is kept at the adjusted angle, and the back fatigue is effectively relieved; when the locking piece rod is loosened, the driving rod can rotate, and at the moment, one end of the rotating seat rotates around the driving rod through the winding piece on the fixing rod, so that the inclination angle adjustment of the arc-shaped back cushion is completed.
Description
Technical Field
The utility model relates to the technical field of learning chairs, in particular to a backrest inclined structure of a learning chair.
Background
The study chair is an essential tool for students to study, and the structure and the quality of the study chair can greatly influence the sitting posture of the students and the comfort level of the students when the students sit down, thereby influencing the study efficiency.
The back cushion of the existing chair back structure designed by the arc human body structure is adopted for improving the comfort level of sitting flat, the back cushion can well support the back, the fatigue caused by sitting for a long time is greatly relieved, but most of the back cushion structure of the learning chair is integrally formed, and the back cushion structure can not be adjusted according to the sitting posture required.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a backrest inclined structure of a learning chair aiming at the defects of the prior art.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
leaning back inclined structure of study chair, including the seat body, the seat body includes the cushion and is used for supporting the arc back of the body pad at back, still include vertical installation in the supporting seat of arc back of the body pad bottom, still including setting up in the cushion bottom and with supporting seat normal running fit's mount pad, the mount pad shaping has the rotatory chamber that is used for holding supporting seat tip embedding, rotatable gomphosis of runner assembly is installed to supporting seat one end at the rotatory intracavity, the installation has the fastening regulation pole that ends the locking lever on the mount pad, can be with the arc back of the body pad with supporting connection adjust to required angle after, adjust the pole through the fastening that has the locking lever, can prevent that the actuating lever from rotating, keep the angle after adjusting with the arc back of the body pad, effectively alleviate back fatigue.
Further: the shaping of mount pad bottom has the rotation seat of being connected with rotatory chamber, and the runner assembly includes that the level sets up the actuating lever in rotatory intracavity, and the actuating lever outer end is connected with the fastening regulation pole that has the locking lever, and supporting seat one end horizontal installation has the dead lever, and nested winding piece has between actuating lever and the dead lever, rotates the winding piece that seat one end was passed through on the dead lever and rotates round the actuating lever.
Further: the supporting seat side wall is formed with a locking plate positioned at the periphery of the driving rod, the locking plate and the fastening adjusting rod are formed with a through locking hole, and the cross section shape of the locking hole is matched with that of the locking rod.
Further: the driving rod is fixedly nested with a plurality of circular friction plates which are in friction fit with the winding piece, the winding piece is composed of a plurality of belt-shaped nesting plates, and the nesting plates and the circular friction plates are alternately fitted and nested on the driving rod.
Further: the rotating assembly further comprises a rotating rod which rotates the supporting seat in the rotating cavity in a positioning mode, the rotating rod rotates the top end of the rotating seat to be connected with the supporting seat in a rotating mode, the rotating rod is nested with a torsion spring, the torsion spring comprises two connecting ends, one of the connecting ends is attached to the top of the rotating cavity, and the other connecting end extends into the rotating seat and is attached to the inner side wall of the rotating seat.
Further: the rotating assembly further comprises a bottom cover surrounding the supporting seat and the lower half portion of the rotating seat, and one end of the bottom cover extends towards the top of the supporting seat and is fixedly connected with the side wall of the supporting seat.
The utility model has the beneficial effects that: according to the back-rest inclined structure of the learning chair, the rotating assembly is rotatably embedded in the rotating cavity, the arc-shaped back cushion connected with the supporting seat can be adjusted to a required angle, the fastening adjusting rod with the locking rod is mounted on the mounting seat, the fastening adjusting rod can be prevented from rotating, the adjusted angle of the arc-shaped back cushion is kept, and back fatigue is effectively relieved; when the locking piece rod is loosened, the driving rod can rotate, and at the moment, one end of the rotating seat rotates around the driving rod through the winding piece on the fixing rod, so that the inclination angle adjustment of the arc-shaped back cushion is completed.
Drawings
Fig. 1 is a schematic structural view of a seat body according to the present invention.
Fig. 2 is a schematic cross-sectional view of the rotating assembly of the present invention.
Fig. 3 is a schematic diagram of an exploded structure of the rotating assembly of the present invention.
The reference numerals include:
1-seat body 10-cushion 11-arc back cushion 12-supporting seat 13-rotating seat 14-mounting seat
2-rotating assembly 20-rotating cavity 21-driving rod 22-fixed rod 23-winding piece 24-circular friction plate 25-locking plate 26-locking hole 27-locking rod 271-fastening adjusting rod 28-rotating rod
29-torsion spring 291-attachment end 30-bottom cap.
Detailed Description
The present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1-3, the backrest tilt structure of the learning chair comprises a chair body 1, the chair body 1 comprises a seat cushion 10, an arc-shaped back cushion 11 for supporting the back, a support base 12 vertically installed at the bottom of the arc-shaped back cushion 11, and an installation base 14 installed at the bottom of the seat cushion 10 and rotatably engaged with the support base 12, the installation base 14 is formed with a rotating cavity 20 for accommodating the end portion of the support base 12 to be embedded, one end of the support base 12 is provided with a rotating component 2 which is rotatably embedded in the rotating cavity 20, after the arc back cushion 11 connected with the supporting seat 12 can be adjusted to a required angle, the fastening adjusting rod 271 with the locking rod 27 is installed on the installation seat 14, the locking rod 27 is inserted into the fastening adjusting rod 271, the fastening adjusting rod 271 is prevented from rotating, the angle of the arc back cushion 11 after adjustment is kept, different sitting postures can be adapted, and back fatigue can be effectively relieved.
In order to better match the rotating cavity 20 of the mounting seat 14 with the supporting seat 12 in a rotating manner, the bottom of the mounting seat 14 is formed with a rotating seat 13 connected with the rotating cavity 20, a part of the rotating seat 13 extends into the rotating cavity 20, a driving rod 21 is horizontally arranged in the rotating cavity 20, the outer end of the driving rod 21 is connected with a fastening adjusting rod 271 with a locking rod 27, the side wall of the supporting seat 12 is formed with a locking plate 25 positioned at the periphery of the driving rod 21, the locking plate 25 and the fastening adjusting rod 271 are formed with a locking hole 26 penetrating through, and the cross section shape of the locking hole 26 is matched with the cross section shape of the locking rod 27; supporting seat 12 one end horizontal installation has dead lever 22, and the nested winding 23 that has between actuating lever 21 and the dead lever 22, winding 23 play the effect of location to rotating seat 13, and when lock stopping piece pole 27 loosens, actuating lever 21 can rotate, and rotating seat 13 one end this moment rotates round actuating lever 21 through winding 23 on the dead lever 22, accomplishes the inclination of arc back of the body pad 11 and adjusts.
The driving rod 21 is fixedly nested with a plurality of circular friction plates 24 which are in friction fit with the winding piece 23, the winding piece 23 is composed of a plurality of belt-shaped nesting plates, the nesting plates and the circular friction plates 24 are alternately fitted and nested on the driving rod 21, the rotating seat 13 connected with the fixing rod 22 rotates around the driving rod 21, and when the rotating seat rotates, the winding piece 23 and the circular friction plates 24 generate sliding friction force, so that the inertia caused by back pressure can be reduced, and the phenomenon of instant downward inclination can not occur.
The rotating assembly 2 further comprises a rotating rod 28 for positioning and rotating the supporting seat 12 in the rotating cavity 20, the rotating rod 28 rotatably connects the top end of the rotating seat 13 to the supporting seat 12, the rotating rod 28 is nested with a torsion spring 29, the torsion spring 29 comprises two connecting ends 291, one connecting end 291 is attached to the top of the rotating cavity 20, the other connecting end 291 extends into the rotating seat 13 and is attached to the inner side wall of the rotating seat 13, an angle formed between the two connecting ends 291 of the torsion spring 29 is 90 °, when the arc-shaped back cushion 11 is inclined to an angle, one connecting end 291 of the torsion spring 29 is bent inward, and the angle is smaller than 90 degrees, at this time, the torsion spring 29 generates tension, and when the arc-shaped back cushion 11 is not stressed after the locking rod 27 is loosened, the arc-shaped back cushion 11 automatically turns back to an initial state due to the tension of the spring 29.
The rotating assembly 2 further comprises a bottom cover 30 surrounding the lower half portions of the supporting seat 12 and the rotating seat 13, one end of the bottom cover 30 extends towards the top of the supporting seat 12 and is fixedly connected with the side wall of the supporting seat 12, and a cavity matched with the rotating seat is formed in one portion of the bottom cover 30, so that rotation adjustment can be achieved better by the rotating seat 13.
In conclusion, the present invention has the above-mentioned excellent characteristics, so that it can be used to enhance the performance of the prior art and has practicability, and becomes a product with practical value.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (6)
1. Leaning back of study chair constructs, including the seat body, the seat body includes cushion and the arc back of the body pad that is used for supporting back, its characterized in that: still including vertical the supporting seat of installing in arc back of the body pad bottom, still including setting up in the cushion bottom and with supporting seat normal running fit's mount pad, the mount pad shaping has the rotatory chamber that is used for holding supporting seat tip embedding, and the rotatable gomphosis of runner assembly is installed to supporting seat one end in the rotatory chamber, and the installation has the fastening of locking lever to adjust the pole on the mount pad.
2. The reclining structure of a learning chair according to claim 1, wherein: the shaping of mount pad bottom has the rotation seat of being connected with rotatory chamber, and the runner assembly includes that the level sets up the actuating lever in rotatory intracavity, and the actuating lever outer end is connected with the fastening regulation pole that has the locking lever, and supporting seat one end horizontal installation has the dead lever, and the nested winding piece that has between actuating lever and the dead lever rotates around the actuating lever that the winding piece on the dead lever is passed through to rotation seat one end.
3. The reclining structure of a learning chair according to claim 2, wherein: the supporting seat side wall is formed with a locking plate located on the periphery of the driving rod, the locking plate and the fastening adjusting rod are formed with a through locking hole, and the cross section shape of the locking hole is matched with that of the locking rod.
4. The reclining structure of a learning chair according to claim 2, wherein: the driving rod is fixedly nested with a plurality of circular friction plates in friction fit with the winding piece, the winding piece is composed of a plurality of belt-shaped nesting plates, and the nesting plates and the circular friction plates are alternately fitted and nested on the driving rod.
5. The reclining structure of a learning chair according to claim 2, wherein: the runner assembly still includes rotates the dwang at rotatory intracavity with the supporting seat location, and the dwang will rotate a top and rotate with the supporting seat and be connected, and nested on the dwang has torque spring, and torque spring includes two links, and one of them link laminating is in rotatory chamber top, and another link extends and laminates at the rotation seat inside wall to rotating the seat.
6. The reclining structure of a learning chair according to claim 5, wherein: the rotating assembly further comprises a bottom cover surrounding the supporting seat and the lower half portion of the rotating seat, and one end of the bottom cover extends to the top of the supporting seat and is fixedly connected with the side wall of the supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122214199.6U CN215959094U (en) | 2021-09-14 | 2021-09-14 | Back-rest inclined structure of learning chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122214199.6U CN215959094U (en) | 2021-09-14 | 2021-09-14 | Back-rest inclined structure of learning chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215959094U true CN215959094U (en) | 2022-03-08 |
Family
ID=80465862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122214199.6U Active CN215959094U (en) | 2021-09-14 | 2021-09-14 | Back-rest inclined structure of learning chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215959094U (en) |
-
2021
- 2021-09-14 CN CN202122214199.6U patent/CN215959094U/en active Active
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