CN102846067B - Back locking mechanism for swivel chair - Google Patents
Back locking mechanism for swivel chair Download PDFInfo
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- CN102846067B CN102846067B CN201210346767.0A CN201210346767A CN102846067B CN 102846067 B CN102846067 B CN 102846067B CN 201210346767 A CN201210346767 A CN 201210346767A CN 102846067 B CN102846067 B CN 102846067B
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- handle
- latch
- positioning seat
- backrest
- base plate
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- 230000000694 effects Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The invention discloses a back locking mechanism for a swivel chair. The back locking mechanism for the swivel chair comprises a positioning seat. The rear end of the positioning seat is fixedly connected with a back bracket connected with a back. A plurality of clamping grooves are arranged at the front of the positioning seat from top to bottom. A pin fitting with the clamping grooves of the positioning seat is slidably arranged on a bottom plate of a chassis. A pin positioning plate preventing the pin from tilting up is arranged at the upper end of the pin. The pin positioning plate is fixedly connected with the bottom plate. A pin sliding control device is connected with the pin. The back locking mechanism comprises the positioning seat fixedly connected with the back bracket, the clamping grooves are arranged at the front end of the positioning seat from top to bottom, the pin fitting with the clamping grooves of the positioning seat is disposed on the bottom plate of the chassis, and the back can be locked and unlocked conveniently by inserting the pin into or separating the pin from the clamping grooves.
Description
Technical field
The present invention relates to a kind of swivel chair, particularly a kind of backrest of rotary chair locking mechanism.
Background technology
Revolving chair chassis, also claims Revolving chair tray, is a vitals that is contained in swivel chair seat cushion below, the lifting of seat cushion, and the elevation angle of backrest regulates and all relies on chassis to complete.
Current Revolving chair tray is generally comprised of parts such as top tray, lower joist, rotating shaft and spring assemblies, and after top rotary table and swivel chair seat back are fixing, swivel chair can be done suitable reclining around the shaft, and can initiatively reply, and makes user have comfort.For example, Chinese patent discloses a kind of pallet, and (patent No. is: 02287885.8), mainly comprise base plate, sliding seat, conical pipe and adjusting device, sliding seat is movably connected in base plate, in the middle of sliding seat, connect the conical pipe of air pressure rod, by Taper Pipe fixed head, be welded in sliding seat together with conical pipe; Described adjusting device includes adjusting rod, adjustable plate, torsion spring, torsion spring fixed head, and adjusting rod interts in sliding seat, and adjustable plate is fixedly connected on adjusting rod and inserts on the one end in sliding seat, the one side of adjustable plate contact air pressure rod, and another side is connected with torsion spring; On the another side of adjustable plate, be provided with adjustable plate and stop blade.
The adjusting device of above-mentioned Revolving chair tray regulates by torque spring completely, and for the different people of body weight, the power of needed torque spring needs different, makes product there is no good versatility.When user is sitting on the seat that this Revolving chair tray is housed, when directly sitting on reclining backward, the position of seat lumbar support human body can be offset, and affects comfortableness.
A kind of Revolving chair chassis of special research and development design, comprise the base plate being connected with gas bar, the left and right sides at base plate is vertically respectively provided with a gripper shoe, gripper shoe and base plate are fixedly linked, above two gripper shoes, along continuous straight runs is provided with to install the seat board of seat support, the both sides, front and back of base plate are respectively equipped with to bracing frame and the backrest bracket of the inclination of swivel chair the place ahead, bracing frame, the bottom of backrest bracket and two gripper shoes are hinged, backrest bracket is respectively provided with a bearing pin up and down, bearing pin is plugged on the side plate of the backrest bracket left and right sides, the both sides, front and back of seat board respectively with bracing frame, the top of backrest bracket is hinged, backrest bracket is connected with the elasticity reset device that it is tilted to swivel chair the place ahead.When people is sitting in the process of leaning on backward on chair, seat support, seat board are also followed the rotation of backrest bracket, backrest and are moved backward, backrest bracket can drive seat board interlock, make fit all the time correspondence position of human body back of back rest supports, backrest keeps relative fixing with people's back, has avoided clothing and back to produce friction.
But somebody wishes that backrest lock is fixed on to one identifies oneself comfortable position, to take a nap after lunch or to have a rest for a long time, so need to design a kind of backrest locking mechanism, solve this problem.
Summary of the invention
The present invention has overcome existing deficiency in above-mentioned prior art, and providing a kind of can enter line-locked backrest locking mechanism to backrest of rotary chair, thereby backrest lock can be fixed on to a fixing angle.
Technical scheme of the present invention is achieved in that
A kind of backrest of rotary chair locking mechanism, comprise positioning seat, the rear end of positioning seat is fixedly linked with the backrest bracket that is connected backrest, the front end of positioning seat offers many clamp bar slots from top to bottom, on the base plate on chassis, slide and be provided with the latch matching with the draw-in groove of positioning seat, latch upper end is provided with the latch location-plate that prevents latch perk, and latch location-plate and base plate are fixedly linked, and latch is connected with latch slide control device.
As preferably, the rear end of positioning seat is provided with locating shaft, locating shaft is arranged on up and down between two bearing pins of backrest bracket, the bearing pin of locating shaft and backrest bracket lower end is all located on positioning seat, in the gripper shoe on chassis, offer limit sliding chutes, the two ends of locating shaft are passed the side plate of the backrest bracket left and right sides and are plugged in limit sliding chutes.The bearing pin of locating shaft and backrest bracket lower end is located on positioning seat, thereby makes positioning seat and backrest bracket keep relatively-stationary state.
As preferably, described latch slide control device comprises handle, torque spring, handle is L shaped, handle is to be connected to form by two sections of handle and drive links, handle is exposed to outside chassis through one of them gripper shoe, drive link is connected to leader's rotating shaft locating piece near this end movable sleeve of handle, and handle rotating shaft locating piece is arranged on base plate by a screw, and handle rotating shaft locating piece rotates around screw; Torque spring is socketed on torsion spring set screw, torsion spring set screw is arranged on screw fixed block upper end, screw fixed block lower end and base plate are fixedly linked, the first spring arm of torque spring is plugged in the hole of latch rear end, and the second spring arm of torque spring is plugged in the hole of drive link away from this end of handle; Handle is stirred in front and back, and handle integral body is rotated around screw, drives torque spring to rotate, and under the elastic force effect of torque spring, the first spring arm pulls latch to release, retract to realize locking, the release of latch.
For latch being controlled in rational travel range, as preferably, on base plate, be also fixed with limited block, limited block is on the position away from this end of handle over against drive link, on limited block, have spacing runway, this end away from handle on drive link is inserted in spacing runway.
Adopted principle of the present invention and the beneficial effect of technique scheme to be:
Backrest locking of the present invention comprises the positioning seat being fixedly linked with backrest bracket, the front end of positioning seat offers many clamp bar slots from top to bottom, on the base plate on chassis, slide and be provided with the latch matching with the draw-in groove of positioning seat, by control latch, insert, depart from draw-in groove and realize locking, the release to backrest, very convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the syndeton schematic diagram on the present invention and chassis.
The specific embodiment
The specific embodiment of the present invention is as follows:
Embodiment: as Fig. 1, shown in 2, backrest bracket locking mechanism of the present invention comprises positioning seat 13 and is arranged on the locating shaft 14 of positioning seat 13 rear ends, locating shaft 14 is arranged on up and down between two bearing pins 7 of backrest bracket, the bearing pin 7 of locating shaft 14 and backrest bracket lower end is all located on positioning seat 13, in backrest bracket 6 rotation processes, the bearing pin 7 that positioning seat 13 is followed locating shaft 14 and backrest bracket lower end moves together, in the gripper shoe 3 on chassis, offer limit sliding chutes 15, the two ends of locating shaft 14 are passed the side plate 9 of the backrest bracket left and right sides and are plugged in limit sliding chutes 15, locating shaft 14 has also played position-limiting action to the layback of backrest and backrest bracket in the interior slip of limit sliding chutes 15, the front end of positioning seat 13 offers many clamp bar slots 16 from top to bottom, on base plate 2, slide and be provided with the latch 17 matching with the draw-in groove 16 of positioning seat, latch 17 upper ends are provided with the latch location-plate 18 that prevents latch perk, latch location-plate 18 is fixedly linked with base plate 2, and latch 17 rear ends are connected with latch slide control device.
As shown in Figure 1, described latch slide control device comprises handle 19, torque spring 20, handle is L shaped, handle 19 is to be connected to form by 22 two sections of handle 21 and drive links, handle 21 arranges perpendicular to latch glide direction, drive link 22 arranges along latch glide direction, handle 21 is exposed to outside chassis through one of them gripper shoe, this end movable sleeve near handle 21 on drive link 22 is connected to leader's rotating shaft locating piece 23, handle rotating shaft locating piece 23 is arranged on base plate 2 by a screw 24, and handle rotating shaft locating piece 23 rotates around screw, the center of rotation that screw 24 is handle, torque spring 20 is socketed on torsion spring set screw 25, torsion spring set screw 25 is arranged on screw fixed block 26 upper ends, screw fixed block 26 lower ends and base plate 2 are fixedly linked, the first spring arm 27 of torque spring 20 is plugged in the hole of latch rear end, and the second spring arm 28 of torque spring 20 is plugged on drive link in the hole away from this end of handle, handle 21 is stirred in front and back, and handle 19 integral body are rotated around screw, drives torque spring 20 to rotate, and under the elastic force effect of torque spring 20, the first spring arm 27 pulls latch 17 to release, retract to realize latch to the locking of positioning seat, release.
On base plate 2, be also fixed with the limited block 29 of rotary spacing before and after handle is carried out, limited block 29 is on the position away from this end of handle over against drive link, on limited block 29, have spacing runway 30, this end away from handle on drive link is inserted in spacing runway 30.
It should be noted that, backrest bracket locking mechanism is not limited only to above-mentioned mechanical mechanism, can also adopt gas bar to lock at an arbitrary position.
Claims (3)
1. a backrest of rotary chair locking mechanism, it is characterized in that: comprise positioning seat, the rear end of positioning seat is fixedly linked with the backrest bracket that is connected backrest, the front end of positioning seat offers many clamp bar slots from top to bottom, on the base plate on chassis, slide and be provided with the latch matching with the draw-in groove of positioning seat, latch upper end is provided with the latch location-plate that prevents latch perk, and latch location-plate and base plate are fixedly linked, and latch is connected with latch slide control device; Described latch slide control device comprises handle, torque spring, handle is L shaped, handle is to be connected to form by two sections of handle and drive links, handle is exposed to outside chassis through one of them gripper shoe, drive link is connected to leader's rotating shaft locating piece near this end movable sleeve of handle, handle rotating shaft locating piece is arranged on base plate by a screw, and handle rotating shaft locating piece rotates around screw; Torque spring is socketed on torsion spring set screw, torsion spring set screw is arranged on screw fixed block upper end, screw fixed block lower end and base plate are fixedly linked, the first spring arm of torque spring is plugged in the hole of latch rear end, and the second spring arm of torque spring is plugged in the hole of drive link away from this end of handle; Handle is stirred in front and back, and handle integral body is rotated around screw, drives torque spring to rotate, and under the elastic force effect of torque spring, the first spring arm pulls latch to release, retract to realize locking, the release of latch.
2. a kind of backrest of rotary chair locking mechanism according to claim 1, it is characterized in that: the rear end of positioning seat is provided with locating shaft, locating shaft is arranged on up and down between two bearing pins of backrest bracket, the bearing pin of locating shaft and backrest bracket lower end is all located on positioning seat, in the gripper shoe on chassis, offer limit sliding chutes, the two ends of locating shaft are passed the side plate of the backrest bracket left and right sides and are plugged in limit sliding chutes.
3. a kind of backrest of rotary chair locking mechanism according to claim 1, it is characterized in that: on base plate, be also fixed with limited block, limited block is on the position away from this end of handle over against drive link, on limited block, have spacing runway, this end away from handle on drive link is inserted in spacing runway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210346767.0A CN102846067B (en) | 2012-09-18 | 2012-09-18 | Back locking mechanism for swivel chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210346767.0A CN102846067B (en) | 2012-09-18 | 2012-09-18 | Back locking mechanism for swivel chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102846067A CN102846067A (en) | 2013-01-02 |
| CN102846067B true CN102846067B (en) | 2014-10-15 |
Family
ID=47393354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210346767.0A Active CN102846067B (en) | 2012-09-18 | 2012-09-18 | Back locking mechanism for swivel chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102846067B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104606036A (en) * | 2015-02-28 | 2015-05-13 | 福建松典健康科技有限公司 | Hidden leg massage device |
| KR102051315B1 (en) * | 2019-05-15 | 2019-12-03 | 주식회사 대하정공 | Chair assembly |
| CN111227546B (en) * | 2020-03-07 | 2023-08-04 | 诸暨任仓智能科技有限公司 | Swivel chair chassis and mounting process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1454568B1 (en) * | 2003-03-07 | 2008-07-02 | Dauphin Entwicklungs- u. Beteiligungs GmbH | Chair, particularly office-chair |
| CN201577827U (en) * | 2009-08-21 | 2010-09-15 | 唐承慧 | Angle adjusting mechanism for seat backrest |
| CN102490629A (en) * | 2011-11-14 | 2012-06-13 | 唐山轨道客车有限责任公司 | Chair bed |
| CN102599746A (en) * | 2012-04-11 | 2012-07-25 | 上海埃珂托塑胶有限公司 | Leisure chair for offices |
| CN202874565U (en) * | 2012-09-18 | 2013-04-17 | 浙江永艺家具股份有限公司 | Swivel chair backrest locking mechanism |
-
2012
- 2012-09-18 CN CN201210346767.0A patent/CN102846067B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1454568B1 (en) * | 2003-03-07 | 2008-07-02 | Dauphin Entwicklungs- u. Beteiligungs GmbH | Chair, particularly office-chair |
| CN201577827U (en) * | 2009-08-21 | 2010-09-15 | 唐承慧 | Angle adjusting mechanism for seat backrest |
| CN102490629A (en) * | 2011-11-14 | 2012-06-13 | 唐山轨道客车有限责任公司 | Chair bed |
| CN102599746A (en) * | 2012-04-11 | 2012-07-25 | 上海埃珂托塑胶有限公司 | Leisure chair for offices |
| CN202874565U (en) * | 2012-09-18 | 2013-04-17 | 浙江永艺家具股份有限公司 | Swivel chair backrest locking mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102846067A (en) | 2013-01-02 |
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Address after: 313300 Zhejiang City, Huzhou Province, Anji County, West Wing Road, No. 1 Patentee after: UE FURNITURE Co.,Ltd. Address before: 313300 Zhejiang City, Huzhou Province, Anji County, West Wing Road, No. 1 Patentee before: ZHEJIANG UE FURNITURE Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A swivel chair backrest locking mechanism Effective date of registration: 20210914 Granted publication date: 20141015 Pledgee: China Co. truction Bank Corp Anji branch Pledgor: UE FURNITURE Co.,Ltd. Registration number: Y2021330001547 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221201 Granted publication date: 20141015 Pledgee: China Co. truction Bank Corp Anji branch Pledgor: UE FURNITURE Co.,Ltd. Registration number: Y2021330001547 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Locking mechanism of swivel chair backrest Effective date of registration: 20221215 Granted publication date: 20141015 Pledgee: Anji Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: UE FURNITURE Co.,Ltd. Registration number: Y2022330003686 |