CN202009852U - Backrest structure of revolving chair with stepless backward and forward leaning adjustment - Google Patents
Backrest structure of revolving chair with stepless backward and forward leaning adjustment Download PDFInfo
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- CN202009852U CN202009852U CN2011200322613U CN201120032261U CN202009852U CN 202009852 U CN202009852 U CN 202009852U CN 2011200322613 U CN2011200322613 U CN 2011200322613U CN 201120032261 U CN201120032261 U CN 201120032261U CN 202009852 U CN202009852 U CN 202009852U
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- 230000001105 regulatory effect Effects 0.000 claims description 59
- 230000009189 diving Effects 0.000 claims description 37
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
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- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A backrest structure of a revolving chair with stepless backward and forward leaning adjustment comprises a fixed seat which is connected with a base plate of the revolving chair. The fixed seat comprises longitudinal and horizontal extending plates, wherein a slot is arranged at the rear end of the horizontal extending plate; the bottom end of at least one backward and forward leaning adjustment spring plate is fixedly inserted into the slot and the top end is closely attached to extend along the height direction of the longitudinal extending plate and is fixedly connected with the bottom end of a backrest; a worm is longitudinally fixed at the front end of the horizontal extending plate; a sliding fulcrum seat is connected to the worm; the front end of the sliding fulcrum seat is slidably connected with the worm through a worm gear case and a chute is arranged at the rear end and is inserted and sleeved in the longitudinal extending plate and the backward and forward leaning adjustment spring plate; a horizontal rod which is slidably and closely attached to the end face of the backward and forward leaning adjustment spring plate is connected outside the chute; and an adjusting handle for adjusting the worm gear case to slide up and down along the worm is also connected to one side of the worm gear case. The backrest structure has simple structure and large adjusting angle; and the adjusting handle is connected with the worm gear case and the worm in a matching way, therefore, the using comfort of the revolving chair can be effectively improved by adjusting the adjusting handle to be appropriate, and the adjustment of the revolving chair is humanized.
Description
Technical field
The utility model relates to a kind of swivel chair structure, be specifically related to a kind of simple in structure, the swivel chair backrest structure that the stepless reclining that result of use is good is regulated.
Background technology
At present, existing swivel chair can be adjusted its backrest reclining angle, with the needs that adapt to the different seat appearance of people and couch, the structure that adopts the seat plate bottom that cylinder and spring are installed mostly, as patent No. CN200920050351.8, the applying date is on January 19th, 2009, announce in the Chinese utility model patent on December 30th, 2009, principle by the compression spring changes the stressed of swivel chair backrest, it is very limited that its adjustable range is regulated in the reclining of this swivel chair structure, and the adjusting pressure that compression needs during spring is bigger, cause the user when the rotation regulating handle, need spend the adjusting that bigger strength just can be finished the backrest reclining, do not meet the demand that swivel chair is comfortable and hommization develops.
Summary of the invention
In order to overcome the deficiency of existing swivel chair inclination of the seat backrest adjusting device, purpose provide a kind of simple in structure, compact, the reclining adjusting angle is big, handle is regulated the swivel chair backrest structure along sliding stepless reclining adjusting.
The technical scheme that its technical problem that solves the utility model adopts is: the swivel chair backrest structure that a kind of stepless reclining is regulated, it is characterized in that, comprise the holder that is connected with the swivel chair chassis, described holder comprises vertical/horizontal expansion plate, horizontal expansion plate rear end has slot, interior its top of the fixing slot of pegging graft, the bottom of at least one reclining adjusting diving board extends longitudinally the plate height direction and is close to extension and affixed with the backrest bottom, the horizontal expansion front edge of board vertically is fixed with worm screw, be connected with on the worm screw and be connected with the sliding fulcrum seat, described sliding fulcrum seat front end is slidingly connected by worm gear case and worm screw, its rear end is provided with sleeve longitudinal extension plate and the interior chute of diving board is regulated in reclining, the chute outside is connected with to slide is close to the transverse bar that the diving board end face is regulated in reclining, and worm gear case one side also is connected with regulates worm gear case along on the worm screw, the regulating handle of lower slider.The swivel chair backrest structure that adopts the stepless reclining of this structure to regulate, holder is set below backrest, diving board and carriage are regulated in reclining, the relation of utilizing the power and the arm of force to be inversely proportional to, the sliding fulcrum seat is equivalent to one of reclining adjusting diving board and moves fulcrum, when rotating regulating handle, the sliding fulcrum seat slides downwards to when the horizontal expansion plate top surface the drive lower edge of worm gear case worm screw, it is the longest that diving board top to the arm of force between the transverse bar of sliding fulcrum seat is regulated in reclining this moment, can apply minimum pressure on the contrary can carry out the reclining adjusting to backrest, and backrest adjustable inclination adjusting angle is maximum; Otherwise, when worm gear case drive sliding fulcrum seat upwards slides to the backrest bottom along worm screw, it is the shortest that diving board top to the arm of force between the transverse bar of sliding fulcrum seat is regulated in reclining this moment, it can bear the pressure maximum, backrest adjustable inclination adjusting angle is minimum, it is simple in structure, the angle adjustable span scope is big, regulating handle and turbine box and worm screw are connected, realize step-less adjustment, and the adjusting of rotation regulating handle is moderate, and the comfort when effectively improving the swivel chair use is regulated swivel chair and had more hommization.
The purpose of this utility model can also adopt following technical measures to solve: described three reclinings are regulated in the fixing slot of pegging graft in bottom of diving board, three reclinings are regulated diving board and are close to the longitudinal extension plate and extend longitudinally the extension of plate height direction, three reclinings regulate the diving board top and the backrest bottom affixed, the rubber-like reclining is regulated diving board and is used in combination, its elastic force is moderate, long service life.
It is affixed with the screw hole form near the end face and the longitudinal extension plate of bottom that diving board is regulated in described reclining, plays the effect of reinforcing the connection.
Described sliding fulcrum base rear end both sides are provided with two and connect journal stirrup, columned transverse bar two terminal journal stirrup connection and two connection journal stirrups and the transverse bar formation chutes of being connected with two, adopt columned transverse bar, because end face is circular-arc, be convenient to regulate the diving board end face and slide and reduce resistance when offseting, also well play the point supporting effect with reclining.
The turbine and the planetary gear of mutual bridle joint are installed in the described turbine box, worm screw interted turbine box and turbine and slides and be spirally connected, regulating handle one end extends in the turbine box and is provided with adjusting gear, adjusting gear and planetary gear are connected with a joggle, adopt traditional worm gear case and worm structure, it is simple in structure, compact, reasonable, and cost is low, connection and adjusting realize the step-less adjustment that the backrest reclining is regulated better along sliding.
Described regulating handle outer ends is provided with lever head.
It is the thin plate shape that plastic material or metal material constitute that diving board is regulated in reclining.
The beneficial effects of the utility model are: holder is set below backrest, diving board and carriage are regulated in reclining, the relation of utilizing the power and the arm of force to be inversely proportional to, the sliding fulcrum seat is equivalent to one of reclining adjusting diving board and moves fulcrum, when rotating regulating handle, the sliding fulcrum seat slides downwards to when the horizontal expansion plate top surface the drive lower edge of worm gear case worm screw, it is the longest that diving board top to the arm of force between the transverse bar of sliding fulcrum seat is regulated in reclining this moment, can apply minimum pressure on the contrary can carry out the reclining adjusting to backrest, and backrest adjustable inclination adjusting angle is maximum; Otherwise, when worm gear case drive sliding fulcrum seat upwards slides to the backrest bottom along worm screw, it is the shortest that diving board top to the arm of force between the transverse bar of sliding fulcrum seat is regulated in reclining this moment, it can bear the pressure maximum, backrest adjustable inclination adjusting angle is minimum, it is simple in structure, the angle adjustable span scope is big, regulating handle and turbine box and worm screw are connected, realize step-less adjustment, and the adjusting of rotation regulating handle is moderate, and the comfort when effectively improving the swivel chair use is regulated swivel chair and had more hommization.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of relative another angle of Fig. 1.
Fig. 3 is the structural representation behind the removal backrest in the utility model.
Fig. 4 is the structural representation of relative another angle of Fig. 3.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Consult Fig. 1 to Fig. 4, the swivel chair backrest structure that a kind of stepless reclining is regulated, comprise the holder 1 that is connected with the swivel chair chassis, described holder comprises vertical/horizontal expansion plate 101,102, horizontal expansion plate 102 rear ends have slot 102-a, interior its top 202 of the 201 fixing slot 102-a that peg graft, bottom of at least one reclining adjusting diving board 2 extends longitudinally plate 101 short transverses and is close to extension and affixed with backrest 3 bottoms 301, horizontal expansion plate 102 front ends vertically are fixed with worm screw 4, be connected with on the worm screw 4 and be connected with sliding fulcrum seat 5, described sliding fulcrum seat 5 front ends are slidingly connected by worm gear case 6 and worm screw 4, its rear end is provided with the chute 501 in sleeve longitudinal extension plate 101 and the reclining adjusting diving board 2, chute 501 outsides are connected with to slide is close to the transverse bar 502 that diving board 2 end faces are regulated in reclining, and worm gear case 6 one sides also are connected with regulates worm gear case 6 along on the worm screw 4, the regulating handle 7 of lower slider.
Further improvement as present embodiment, described three reclinings are regulated in the bottom 201 fixing slot 102-a that peg graft of diving board 2, three reclinings are regulated diving board 2 and are close to longitudinal extension plate 101 and extend longitudinally the extension of plate 101 short transverses, three reclining adjusting diving board 2 tops 202 are affixed with backrest 3 bottoms 301, the rubber-like reclining is regulated diving board 2 and is used in combination, make its elastic force moderate, long service life.
It is affixed with screw hole 8 forms near the end face and the longitudinal extension plate 101 of bottom 201 that diving board 2 is regulated in described reclining, plays the effect of reinforcing the connection.
Both sides, described sliding fulcrum seat 5 rear end are provided with two and connect journal stirrup 503,504,502 liang of ends of columned transverse bar are connected journal stirrup 503,504 connections and two and connect formation chute 501 between journal stirrups 503,504 and the transverse bar 502 with two, adopt columned transverse bar 502, because end face is circular-arc, be convenient to regulate diving board 2 end faces and slide and reduce resistance when offseting, also well play the point supporting effect with reclining.
The turbine 601 and the planetary gear 602 of mutual bridle joint are installed in the described turbine box 6, worm screw 4 interted turbine box 6 and slides with turbine 601 and be spirally connected, regulating handle 7 one ends extend in the turbine box 6 and are provided with adjusting gear 701, adjusting gear 701 is connected with a joggle with planetary gear 602, adopt traditional worm gear case 6 and worm screw 4 structures, it is simple in structure, compact, reasonable, and cost is low, connection and adjusting realize the step-less adjustment that the backrest reclining is regulated better along sliding.
Described regulating handle 7 outer ends are provided with lever head 702, are convenient to hand grip and rotate.
It is the thin plate shape that plastic material or metal material constitute that diving board 2 is regulated in reclining.
Operation principle: during use, rotate regulating handle, sliding fulcrum seat 5 slides downwards to when horizontal expansion plate 102 end faces the drive lower edge of worm gear case 6 worm screw 4, it is the longest that diving board 2 tops 202 to the arm of force between the transverse bar 502 of sliding fulcrum seat 5 is regulated in reclining this moment, can apply minimum pressure on the contrary can carry out the reclining adjusting to backrest 3, and backrest 3 adjustable inclination adjusting angles are maximum; Otherwise, when worm gear case 6 drive sliding fulcrum seats 5 upwards slide to backrest 3 bottoms 301 along worm screw 4, it is the shortest that diving board 2 tops 202 to the arm of force between the transverse bar 502 of sliding fulcrum seat 5 is regulated in reclining this moment, it can bear the pressure maximum, backrest 3 adjustable inclination adjusting angles are minimum, it is simple in structure, the angle adjustable span scope is big, regulating handle 7 is connected with turbine box 6 and worm screw 4, realize step-less adjustment, and the adjusting of rotation regulating handle 7 is moderate, and the comfort when effectively improving the swivel chair use is regulated swivel chair and had more hommization.
Above-described specific embodiment only is the utility model preferred embodiment, and the equivalent arrangements of being done according to the utility model claim all should be technology of the present utility model and contains such as.
Claims (6)
1. swivel chair backrest structure that stepless reclining is regulated, it is characterized in that, comprise the holder (1) that is connected with the swivel chair chassis, described holder comprises vertical/horizontal expansion plate (101,102), horizontal expansion plate (102) rear end has slot (102-a), interior its top (202) of the fixing slot (102-a) of pegging graft, the bottom (201) of at least one reclining adjusting diving board (2) extends longitudinally plate (101) short transverse and is close to extension and affixed with backrest (3) bottom (301), horizontal expansion plate (102) front end vertically is fixed with worm screw (4), be connected with on the worm screw (4) and be connected with sliding fulcrum seat (5), described sliding fulcrum seat (5) front end is slidingly connected by worm gear case (6) and worm screw (4), its rear end is provided with sleeve longitudinal extension plate (101) and the interior chute (501) of diving board (2) is regulated in reclining, chute (501) outside is connected with to slide is close to the transverse bar (502) that diving board (2) end face is regulated in reclining, and worm gear case (6) one sides also are connected with regulates worm gear case (6) along on the worm screw (4), the regulating handle of lower slider (7).
2. the swivel chair backrest structure that described stepless reclining is regulated according to claim 1, it is characterized in that: described three reclinings are regulated in the fixing slot (102-a) of pegging graft in bottom (201) of diving board (2), three reclinings adjusting diving boards (2) are close to longitudinal extension plate (101) and are extended longitudinally the extension of plate (101) short transverse, and three reclining adjusting diving board (2) tops (202) are affixed with backrest (3) bottom (301).
3. according to the swivel chair backrest structure of claim 1 or 2 described stepless reclinings adjustings, it is characterized in that: it is affixed with screw hole (8) form near the end face and the longitudinal extension plate (101) of bottom (201) that diving board (2) is regulated in described reclining.
4. the swivel chair backrest structure that described stepless reclining is regulated according to claim 1, it is characterized in that: described sliding fulcrum seat (5) both sides, rear end are provided with two and connect journal stirrup (503,504), and columned (502) two terminal connections with two between journal stirrup (503,504) connection and two connection journal stirrups (503,504) and the transverse bar (502) of transverse bar constitute chute (501).
5. the swivel chair backrest structure that described stepless reclining is regulated according to claim 1, it is characterized in that: turbine (601) and planetary gear (602) that mutual bridle joint is installed in the described turbine box (6), worm screw (4) interted turbine box (6) and turbine (601) and slides and be spirally connected, regulating handle (7) one ends extend in the turbine box (6) and are provided with adjusting gear (701), and adjusting gear (701) is connected with a joggle with planetary gear (602).
6. according to the swivel chair backrest structure of claim 1 or 5 described stepless reclinings adjustings, it is characterized in that: described regulating handle (7) outer ends is provided with lever head (702).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200322613U CN202009852U (en) | 2011-01-30 | 2011-01-30 | Backrest structure of revolving chair with stepless backward and forward leaning adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200322613U CN202009852U (en) | 2011-01-30 | 2011-01-30 | Backrest structure of revolving chair with stepless backward and forward leaning adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202009852U true CN202009852U (en) | 2011-10-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200322613U Expired - Lifetime CN202009852U (en) | 2011-01-30 | 2011-01-30 | Backrest structure of revolving chair with stepless backward and forward leaning adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202009852U (en) |
-
2011
- 2011-01-30 CN CN2011200322613U patent/CN202009852U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170214 Address after: Huangpu Town Industrial Zone dacen Kurt road 528429 Guangdong city of Zhongshan province No. 3 Patentee after: According to the Zhongshan City Furniture Co., Ltd. Address before: 528305 Foshan, Shunde District, Ronggui street, King Street, Lane Lane, lane, Lane 3, No. three, No. five Patentee before: Weng Yonglian |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |