CN215820310U - Chair with adjustable backrest angle - Google Patents
Chair with adjustable backrest angle Download PDFInfo
- Publication number
- CN215820310U CN215820310U CN202122393678.9U CN202122393678U CN215820310U CN 215820310 U CN215820310 U CN 215820310U CN 202122393678 U CN202122393678 U CN 202122393678U CN 215820310 U CN215820310 U CN 215820310U
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- CN
- China
- Prior art keywords
- seat cushion
- backrest
- plate
- rod
- support plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000000903 blocking effect Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses a chair with an adjustable backrest angle, which relates to the field of office chairs and comprises a seat cushion and a backrest, wherein the seat cushion is connected with the backrest through an L-shaped support plate, the L-shaped support plate comprises a first support plate and a second support plate, the upper part of the first support plate is connected with the backrest, the lower end of the first support plate is connected with the left end of the second support through a rotating shaft, and the right end of the second support is positioned below the seat cushion and is connected with the seat cushion through a bolt; an angle adjusting device is arranged between the lower end of the first supporting plate and the left end of the second support; the angle adjusting device comprises a hydraulic rod, one end of the hydraulic rod is rotatably arranged at the lower part of the first supporting plate, the other end of the hydraulic rod is connected with a driving device, and the driving device is arranged on the upper side surface of the second supporting plate.
Description
Technical Field
The utility model relates to the field of office chairs, in particular to a chair with an adjustable backrest angle.
Background
Most people's work now is for a long time to sit before the computer, and the angle of the back of office chair is mostly unadjustable now, and when handling official business, user's back can not be pressed close to the back, has the certain distance between user's back and the back, and the comfort level is poor, and the user also can not lean back and relax, and the angle of back directly influences user's travelling comfort.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a seat with an adjustable backrest angle, aiming at solving the problem that the existing seat is not high in comfort level.
The technical scheme is as follows: a chair with an adjustable backrest angle comprises a seat cushion and a backrest, wherein the seat cushion is connected with the backrest through an L-shaped supporting plate, the L-shaped supporting plate comprises a first supporting plate and a second supporting plate, the upper part of the first supporting plate is connected with the backrest, the lower end of the first supporting plate is connected with the left end of the second supporting plate through a rotating shaft, and the right end of the second supporting plate is positioned below the seat cushion and is connected with the seat cushion through a bolt;
an angle adjusting device is arranged between the lower end of the first supporting plate and the left end of the second support; the angle adjusting device comprises a hydraulic rod, one end of the hydraulic rod is rotatably mounted on the lower portion of the first supporting plate, the other end of the hydraulic rod is connected with a driving device, the driving device is mounted on the upper side face of the second supporting plate, a control switch is arranged on the side face of the driving device, and the control switch is connected with the driving device through a control line.
Further, the first supporting plate comprises a round rod and an arc-shaped plate; the lower end of the round rod is connected with the upper end of the arc-shaped plate;
the backrest is connected with the first supporting plate through a height adjusting device, the height adjusting device comprises a telescopic rod and a first connecting piece, the telescopic rod and the first supporting plate are arranged side by side, the upper end of the telescopic rod is fixedly connected with the first connecting piece, and the lower end of the telescopic rod is fixedly connected with the round rod through a second connecting piece; the lower part of the telescopic rod is provided with a button for controlling the telescopic rod to stretch;
the connecting structure is characterized in that a through hole is formed in the first connecting piece, the round rod penetrates through the through hole, the first connecting piece is connected with the backrest through a bolt, a connecting plate is arranged on one side, close to the backrest, of the first connecting piece, and four through holes for the bolts to penetrate through are formed in the periphery of the connecting plate.
Furthermore, the cross section of arc increases from last to down in proper order, the up end of arc with the terminal surface shape is the same under the round bar.
Furthermore, a base is arranged below the seat cushion, and the seat cushion is connected with the base through a manually controlled lifting device; the lower extreme of elevating gear is equipped with the bolt hole, the base top is equipped with the screw rod, the lower extreme of screw rod with the base is connected, the screw rod is arranged in the bolt hole, the seatpad is rotatable install elevating gear's upper end.
Furthermore, a rotating shaft perpendicular to the seat cushion is arranged below the seat cushion, and the rotating shaft is connected with the upper end of the lifting device through a bearing.
Furthermore, the upper end of the round rod is provided with a detachable blocking part.
Furthermore, a plurality of universal rollers are installed on the base, and a pedal brake pad is arranged on each universal roller.
Has the advantages that:
1) the angle adjusting device is arranged to adjust the angles of the first connecting plate and the second connecting plate, so that the angle of the backrest can be adjusted, and the comfort level of use can be improved. When working, the backrest is close to the back of the user, thereby providing a support for the back of the user and reducing the fatigue feeling of the user. The backrest can also be tilted backwards, so that the user can lie on the backrest to relax.
2) The utility model also provides a device for raising the backrest, which can adjust the height of the backrest according to the length of the upper body of a user and is more suitable for the work of a human body.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an L-shaped support plate according to the present invention;
FIG. 3 is a schematic structural diagram of a base according to the present invention;
reference numbers in the figures: a seat cushion-1; a backrest-2; an L-shaped support plate-3; a first support plate-31; a second support plate-32; an angle adjusting device-4; a hydraulic rod-41; said drive means-42; a height adjusting device-5; a telescopic rod-51 and a first connecting piece-52; a second connector-53; a blocking portion-6; a base-7.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
As shown in fig. 1 to 3, a chair with adjustable backrest angle comprises a seat cushion 1 and a backrest 2, the seat cushion 1 is connected with the backrest 2 through an L-shaped support plate 3, the L-shaped support plate 3 comprises a first support plate 31 and a second support plate 32, the upper part of the first support plate is connected with the backrest 2, the lower end of the first support plate 31 is connected with the left end of the second support plate through a rotating shaft, and the right end of the second support plate is located below the seat cushion 1 and is connected with the seat cushion 1 through a bolt.
An angle adjusting device 4 is arranged between the lower end of the first supporting plate 31 and the left end of the second support; the angle adjusting device 4 comprises a hydraulic rod 41, one end of the hydraulic rod 41 is rotatably installed at the lower part of the first supporting plate 31, the other end of the hydraulic rod 41 is connected with a driving device 42, the driving device 42 is installed on the upper side surface of the second supporting plate 32, a control switch is arranged on the side surface of the driving device 42, and the control switch is connected with the driving device 42 through a control line.
The first supporting plate 31 comprises a round rod and an arc-shaped plate, a detachable blocking part 6 is arranged at the upper end of the round rod, the cross section of the arc-shaped plate is sequentially increased from top to bottom, and the shape of the upper end surface of the arc-shaped plate is the same as that of the lower end surface of the round rod; the lower end of the round rod is connected with the upper end of the arc-shaped plate; the backrest 2 is connected with the first supporting plate 31 through a height adjusting device 5, the height adjusting device 5 comprises an expansion rod 51 and a first connecting piece 52, the expansion rod 51 and the first supporting plate 31 are arranged side by side, the upper end of the expansion rod 51 is fixedly connected with the first connecting piece 52, and the lower end of the expansion rod 51 is fixedly connected with the round rod through a second connecting piece 53; a button for controlling the telescopic rod 51 to stretch is arranged at the lower part of the telescopic rod 51;
the first connecting piece 52 is provided with a through hole, the round rod penetrates through the through hole, the first connecting piece 52 is connected with the backrest 2 through bolts, one side, close to the backrest 2, of the first connecting piece 52 is provided with a connecting plate, and four through holes for the bolts to penetrate through are formed in the periphery of the connecting plate.
A base 7 is arranged below the seat cushion 1, and the seat cushion 1 is connected with the base 7 through a manually controlled lifting device; the seat cushion 1 is rotatably arranged at the upper end of the lifting device, a rotating shaft vertical to the seat cushion 1 is arranged below the seat cushion 1, and the rotating shaft is connected with the upper end of the lifting device through a bearing. The lower end of the lifting device is provided with a bolt hole, a screw rod is arranged above the base 7, the lower end of the screw rod is connected with the base 7, the screw rod is arranged in the bolt hole,
a plurality of universal rollers are installed on the base, and a pedal brake pad is arranged on each universal roller.
The utility model is provided with the angle adjusting device and the height adjusting device for adjusting the backrest, so that a user can adjust the angle and the height of the backrest as required, and the comfort level is improved. The height of the seat cushion can also be adjusted by the lifting device to better match the height of the office table. The foot on the universal gyro wheel steps on the brake block and can let office chair stop removing, and is more firm when lying back the rest.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. The chair with the adjustable backrest angle comprises a seat cushion (1) and a backrest (2), and is characterized in that the seat cushion (1) is connected with the backrest (2) through an L-shaped support plate (3), the L-shaped support plate (3) comprises a first support plate (31) and a second support plate (32), the upper part of the first support plate (31) is connected with the backrest (2), the lower end of the first support plate (31) is connected with the left end of the second support through a rotating shaft, and the right end of the second support is positioned below the seat cushion (1) and is connected with the seat cushion (1) through a bolt;
an angle adjusting device (4) is arranged between the lower end of the first supporting plate (31) and the left end of the second support; the angle adjusting device (4) comprises a hydraulic rod (41), one end of the hydraulic rod (41) is rotatably installed on the lower portion of the first supporting plate (31), the other end of the hydraulic rod (41) is connected with a driving device (42), the driving device (42) is installed on the upper side face of the second supporting plate (32), a control switch is arranged on the side face of the driving device (42), and the control switch is connected with the driving device (42) through a control line.
2. An adjustable back angle seat according to claim 1, wherein the first support plate (31) comprises a round bar and an arc plate; the lower end of the round rod is connected with the upper end of the arc-shaped plate;
the backrest (2) is connected with the first supporting plate (31) through a height adjusting device (5), the height adjusting device (5) comprises a telescopic rod (51) and a first connecting piece (52), the telescopic rod (51) and the first supporting plate (31) are arranged side by side, the upper end of the telescopic rod (51) is fixedly connected with the first connecting piece (52), and the lower end of the telescopic rod (51) is fixedly connected with the round rod through a second connecting piece (53); the lower part of the telescopic rod (51) is provided with a button for controlling the telescopic rod (51) to stretch;
the connecting structure is characterized in that a through hole is formed in the first connecting piece, the round rod penetrates through the through hole, the first connecting piece is connected with the backrest (2) through a bolt, a connecting plate is arranged on one side, close to the backrest (2), of the first connecting piece, and four through holes for the bolts to penetrate through are formed in the periphery of the connecting plate.
3. The chair with the adjustable backrest angle as claimed in claim 2, wherein the cross section of the arc plate is increased from top to bottom, and the shape of the upper end surface of the arc plate is the same as that of the lower end surface of the round bar.
4. The chair with the adjustable backrest angle is characterized in that a base is arranged below the seat cushion (1), and the seat cushion (1) is connected with the base through a manually controlled lifting device; the lower end of the lifting device is provided with a bolt hole, a screw rod is arranged above the base, the lower end of the screw rod is connected with the base (7), the screw rod is arranged in the bolt hole, and the seat cushion (1) is rotatably arranged at the upper end of the lifting device.
5. The adjustable backrest angle seat as claimed in claim 4, wherein a rotating shaft perpendicular to the seat cushion (1) is arranged below the seat cushion (1), and the rotating shaft is connected with the upper end of the lifting device through a bearing.
6. The chair with the adjustable backrest angle as claimed in claim 4, wherein the base is provided with a plurality of universal rollers, and the universal rollers are provided with pedal brake pads.
7. Seat with adjustable backrest angle, according to claim 2, characterized in that the upper end of the rod is provided with a removable stop (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122393678.9U CN215820310U (en) | 2021-09-30 | 2021-09-30 | Chair with adjustable backrest angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122393678.9U CN215820310U (en) | 2021-09-30 | 2021-09-30 | Chair with adjustable backrest angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215820310U true CN215820310U (en) | 2022-02-15 |
Family
ID=80201841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122393678.9U Expired - Fee Related CN215820310U (en) | 2021-09-30 | 2021-09-30 | Chair with adjustable backrest angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215820310U (en) |
-
2021
- 2021-09-30 CN CN202122393678.9U patent/CN215820310U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221212 Address after: No. 86 Henglu Road, Hongqi Village, Hengxi Street, Jiangning District, Nanjing, Jiangsu 211157 Patentee after: Jiangsu Menghang Furniture Technology Development Co.,Ltd. Address before: Longpan road Xuanwu District of Nanjing city of Jiangsu Province, No. 159 210037 Patentee before: NANJING FORESTRY University |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220215 |