CN107684265B - Locking subassembly of back of chair with adjustable - Google Patents
Locking subassembly of back of chair with adjustable Download PDFInfo
- Publication number
- CN107684265B CN107684265B CN201710807342.8A CN201710807342A CN107684265B CN 107684265 B CN107684265 B CN 107684265B CN 201710807342 A CN201710807342 A CN 201710807342A CN 107684265 B CN107684265 B CN 107684265B
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- Prior art keywords
- locking
- fixedly connected
- control arm
- plate
- handle
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- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Special Chairs (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
A locking component of an adjustable chair back. Relates to the field of lifting seat structures. The locking component of the adjustable chair back is exquisite in structure and small in size. The chair back is movably connected to one side of the chair surface, the bottom of the chair back is fixedly connected with a locking plate, and a locking hole is formed in the locking plate; the locking component comprises a locking bolt, a return spring, a locking spring and a locking assembly the device comprises a shifting block, a stay wire, a control arm, a handle and a handle box; the locking bolt is matched with the locking hole, is positioned at one side of the locking hole and is connected with the lower part of the chair surface in a sliding way, the locking bolt is fixedly connected with a reset plate, and the reset spring is sleeved with the locking bolt and is propped between the reset plate and the locking plate; the middle part of the shifting block is hinged to the lower part of the chair surface, and the upper part of the shifting block is attached to one side, far away from the locking plate, of the locking bolt. The device has the advantages of exquisite structure, small volume, convenient operation, short operation distance and low manufacturing cost on the whole.
Description
Technical Field
The present invention relates to the field of lift seat structures, and more particularly to improvements in locking assemblies for seat backs therein.
Background
At present, the lifting chair is one of common articles in daily office and life of people, and is popular with people because the chair surface can be lifted and the chair back can be tilted. Wherein, the chair back is usually locked by the cooperation of the locking bolt and the locking plate, namely, when the locking bolt is inserted into the locking plate, the angle of the chair back is not adjustable; conversely, when the locking bolt is pulled out of the locking plate, the chair back angle can be freely adjusted. In the prior art, a long handle is generally adopted to realize the operation of the locking bolt, however, the defects of long structural size, long operation distance, small space utilization rate, inconvenient operation, high manufacturing cost and the like are brought, and the user experience is greatly influenced.
Disclosure of Invention
Aiming at the problems, the invention provides the locking component of the adjustable chair back, which has the advantages of exquisite structure, small volume, convenient operation, short operation distance and low manufacturing cost.
The technical scheme of the invention is as follows: the chair back is movably connected to one side of the chair surface, the bottom of the chair back is fixedly connected with a locking plate, and a locking hole is formed in the locking plate; the locking component comprises a locking bolt, a reset spring, a shifting block, a stay wire, a control arm, a handle and a handle box;
the locking bolt is matched with the locking hole, the locking bolt is positioned on one side of the locking hole and is in sliding connection with the lower part of the chair surface, the locking bolt is fixedly connected with a reset plate, and the reset spring is sleeved with the locking bolt and is propped against between the reset plate and the locking plate; the middle part of the shifting block is hinged to the lower part of the chair surface, and the upper part of the shifting block is attached to one side, far away from the locking plate, of the locking bolt;
the handle box is fixedly connected to the lower part of the chair surface and is positioned at one side of the shifting block, which is opposite to the locking bolt, the bottom end of the control arm is hinged in the handle box, one side of the middle part of the control arm penetrates out of the handle box, the upper part of the control arm is provided with a containing groove, a fastening spring and a fastening steel ball are arranged in the containing groove, and the fastening spring is fixedly connected between the fastening steel ball and the groove bottom of the containing groove, so that the fastening steel ball is attached to the inner wall of the handle box; the handle is fixedly connected to one side of the control arm penetrating out of the handle box, one end of the stay wire is fixedly connected to the lower portion of the shifting block, and the other end of the stay wire penetrates into the handle box and is fixedly connected with the top end of the control arm.
The inner wall of the handle box is provided with a ball socket which is matched with the fastening steel ball, and when the handle swings to the limit position away from the locking plate, one quarter of the fastening steel ball falls into the ball socket.
The handle box is internally and fixedly connected with a pair of limiting columns, and the control arm is positioned between the two limiting columns.
One of the two limiting columns, which is far away from the locking plate, is fixedly connected with a fixed magnet, and one side of the control arm, which is away from the locking plate, is fixedly connected with a movable magnet.
When the invention is used, a user can conveniently switch the chair back between the locking state and the unlocking state by reciprocally poking the handle, and meanwhile, the whole structure of locking subassembly in this case is small, action range is also less, consequently, has exquisite, small, convenient operation, operation distance weak point and low in manufacturing cost's advantage on the whole.
Drawings
Figure 1 is a schematic view of the structure of the present case,
figure 2 is a cross-sectional view taken along A-A of figure 1,
FIG. 3 is a schematic view of the structure of the handle case in this case;
in the figure, 1 is a locking plate, 2 is a locking bolt, 3 is a return spring, 4 is a shifting block, 5 is a stay wire, 6 is a control arm, 61 is a fastening spring, 62 is a fastening steel ball, 7 is a handle, 8 is a handle box, and 80 is a limit post.
Detailed Description
The invention is as shown in figures 1-3, the chair back is movably connected to one side of the chair surface, the bottom of the chair back is fixedly connected with a locking plate 1, and a locking hole is formed in the locking plate; the locking component comprises a locking bolt 2, a reset spring 3, a shifting block 4, a pull wire 5, a control arm 6, a handle 7 and a handle box 8;
the locking bolt 2 is matched with the locking hole, the locking bolt 2 is positioned at one side of the locking hole and is in sliding connection with the lower part of the chair surface, a reset plate is fixedly connected to the locking bolt 2, and the reset spring 3 is sleeved with the locking bolt 2 and is propped between the reset plate and the locking plate 1; the middle part of the shifting block 4 is hinged to the lower part of the chair surface, and the upper part of the shifting block 4 is attached to one side, far away from the locking plate 1, of the locking bolt 2;
the handle box 8 is fixedly connected to the lower part of the chair surface and is positioned at one side of the shifting block 4, which is opposite to the locking bolt 2, the bottom end of the control arm 6 is hinged in the handle box 8, one side of the middle part of the control arm 6 penetrates out of the handle box 8, the upper part of the control arm 6 is provided with a containing groove, a fastening spring 61 and a fastening steel ball 62 are arranged in the containing groove, and the fastening spring 61 is fixedly connected between the fastening steel ball 62 and the bottom of the containing groove, so that the fastening steel ball 62 is attached to the inner wall of the handle box 8; the handle 7 is fixedly connected to one side of the control arm 6 penetrating out of the handle box 8, one end of the pull wire 5 is fixedly connected to the lower part of the shifting block 4, and the other end penetrates into the handle box 8 and is fixedly connected with the top end of the control arm 6. Therefore, when the control arm swings away from the locking plate under the drive of the handle, the lower part of the shifting block can be pulled to swing away from the locking plate through the pull wire, so that the locking bolt is pushed to be inserted into the locking hole through the upper part of the shifting block, and the locking of the chair back is realized; when the handle drives the control and swings towards the locking plate, the pull wire has no tension, so that the locking bolt can withdraw from the locking hole under the action of the return spring, and the chair back can be freely adjusted. The handle and the control arm can keep relative static with the handle box when a user does not operate due to the fastening steel ball and the fastening spring, so that the locking state of the chair back is stably kept, and the reliability of the locking assembly is ensured.
In summary, when the chair back locking device is used, a user can conveniently switch between the locking state and the unlocking state by reciprocally poking the handle, and meanwhile, the whole structure of the locking assembly is small in size and action amplitude, so that the chair back locking device has the advantages of exquisite structure, small size, convenience in operation, short operation distance and low manufacturing cost.
The inner wall of the handle box is provided with a ball socket which is matched with the fastening steel ball, and when the handle swings to the limit position away from the locking plate, one quarter of the fastening steel ball falls into the ball socket. Thus, when the handle swings away from the locking plate and swings to the limit position, the positions of the steel ball and the control arm can be better and more stably fixed through the ball socket; when the locking bolt is inserted into the locking plate, the locking state of the chair back can be more stably maintained, and the reliability of the locking assembly is effectively ensured.
A pair of limiting posts 80 are fixedly connected in the handle box 8, and the control arm is positioned between the two limiting posts. Thereby defining the limit swing position of the control arm.
One of the two limiting columns, which is far away from the locking plate, is fixedly connected with a fixed magnet, and one side of the control arm, which is away from the locking plate, is fixedly connected with a movable magnet. Thus, when the handle swings away from the locking plate and swings to the limit position, the position of the control arm can be further stabilized through the cooperation of the fixed magnet and the movable magnet; therefore, when the locking bolt is inserted into the locking plate, the chair back is fixed, the locking state of the chair back can be further stably maintained, and the reliability of the locking assembly is further effectively ensured.
Claims (4)
1. The locking component of the adjustable chair back is movably connected to one side of a chair surface, the bottom of the chair back is fixedly connected with a locking plate, and a locking hole is formed in the locking plate; the locking assembly is characterized by comprising a locking bolt, a reset spring, a shifting block, a stay wire, a control arm, a handle and a handle box;
the locking bolt is matched with the locking hole, the locking bolt is positioned on one side of the locking hole and is in sliding connection with the lower part of the chair surface, the locking bolt is fixedly connected with a reset plate, and the reset spring is sleeved with the locking bolt and is propped against between the reset plate and the locking plate; the middle part of the shifting block is hinged to the lower part of the chair surface, and the upper part of the shifting block is attached to one side, far away from the locking plate, of the locking bolt;
the handle box is fixedly connected to the lower part of the chair surface and is positioned at one side of the shifting block, which is opposite to the locking bolt, the bottom end of the control arm is hinged in the handle box, one side of the middle part of the control arm penetrates out of the handle box, the upper part of the control arm is provided with a containing groove, a fastening spring and a fastening steel ball are arranged in the containing groove, and the fastening spring is fixedly connected between the fastening steel ball and the groove bottom of the containing groove, so that the fastening steel ball is attached to the inner wall of the handle box; the handle is fixedly connected to one side of the control arm penetrating out of the handle box, one end of the stay wire is fixedly connected to the lower portion of the shifting block, and the other end of the stay wire penetrates into the handle box and is fixedly connected with the top end of the control arm.
2. The adjustable chair back locking assembly according to claim 1, wherein the inner wall of the handle box is provided with a ball socket, the ball socket is matched with the fastening steel ball, and when the handle swings to a limit position away from the locking plate, one quarter of the fastening steel ball is sunk into the ball socket.
3. The adjustable back lock assembly of claim 1, wherein a pair of limit posts are fixedly connected within the handle case, and the control arm is positioned between the two limit posts.
4. A locking assembly for an adjustable seat back as in claim 3, wherein a fixed magnet is fixedly connected to one of the two limiting posts remote from the locking plate, and a movable magnet is fixedly connected to a side of the control arm facing away from the locking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807342.8A CN107684265B (en) | 2017-09-08 | 2017-09-08 | Locking subassembly of back of chair with adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807342.8A CN107684265B (en) | 2017-09-08 | 2017-09-08 | Locking subassembly of back of chair with adjustable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107684265A CN107684265A (en) | 2018-02-13 |
| CN107684265B true CN107684265B (en) | 2023-12-29 |
Family
ID=61156166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710807342.8A Active CN107684265B (en) | 2017-09-08 | 2017-09-08 | Locking subassembly of back of chair with adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107684265B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004009934A (en) * | 2002-06-10 | 2004-01-15 | Delta Kogyo Co Ltd | Slide mechanism of car seat |
| WO2009049532A1 (en) * | 2007-10-12 | 2009-04-23 | Hubei Aviation Precision Machinery Technology Co., Ltd. | Self-locking structure for seat backrest folding |
| CN202775182U (en) * | 2012-06-28 | 2013-03-13 | 东莞市青于蓝实业投资有限公司 | Height-adjustable chair |
| CN205513502U (en) * | 2016-03-17 | 2016-08-31 | 巢湖学院 | Complete convertible public chair |
| CN206306877U (en) * | 2016-12-05 | 2017-07-07 | 上海汽车集团股份有限公司 | Vehicle rotary seat |
| CN208371328U (en) * | 2017-09-08 | 2019-01-15 | 中山市东立家具配件有限公司 | The latch assembly of adjustable chair back |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9060610B2 (en) * | 2011-11-11 | 2015-06-23 | Flexsteel Industries, Inc. | Spring back hinge with or without spring lock mechanism |
| CN103479112A (en) * | 2013-09-24 | 2014-01-01 | 浙江永艺家具股份有限公司 | Swivel chair base plate |
-
2017
- 2017-09-08 CN CN201710807342.8A patent/CN107684265B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004009934A (en) * | 2002-06-10 | 2004-01-15 | Delta Kogyo Co Ltd | Slide mechanism of car seat |
| WO2009049532A1 (en) * | 2007-10-12 | 2009-04-23 | Hubei Aviation Precision Machinery Technology Co., Ltd. | Self-locking structure for seat backrest folding |
| CN202775182U (en) * | 2012-06-28 | 2013-03-13 | 东莞市青于蓝实业投资有限公司 | Height-adjustable chair |
| CN205513502U (en) * | 2016-03-17 | 2016-08-31 | 巢湖学院 | Complete convertible public chair |
| CN206306877U (en) * | 2016-12-05 | 2017-07-07 | 上海汽车集团股份有限公司 | Vehicle rotary seat |
| CN208371328U (en) * | 2017-09-08 | 2019-01-15 | 中山市东立家具配件有限公司 | The latch assembly of adjustable chair back |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107684265A (en) | 2018-02-13 |
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