CN111150251A - Chassis inclination force adjusting device - Google Patents
Chassis inclination force adjusting device Download PDFInfo
- Publication number
- CN111150251A CN111150251A CN202010023766.7A CN202010023766A CN111150251A CN 111150251 A CN111150251 A CN 111150251A CN 202010023766 A CN202010023766 A CN 202010023766A CN 111150251 A CN111150251 A CN 111150251A
- Authority
- CN
- China
- Prior art keywords
- elastic sheet
- shell
- pressing plate
- chassis
- adjusting device
- 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.)
- Pending
Links
- 230000003139 buffering effect Effects 0.000 claims description 19
- 239000012634 fragment Substances 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/002—Chair or stool bases
Landscapes
- Chairs Characterized By Structure (AREA)
Abstract
The invention relates to a chassis leaning and leaning force adjusting device which comprises a shell, a backrest lever and an adjusting mechanism, wherein the adjusting mechanism comprises an elastic sheet, an elastic sheet pressing table, an elastic sheet pressing plate and an adjusting screw rod which are arranged inside the shell, one end of the elastic sheet is fixedly connected with the shell, a fulcrum of the backrest lever is rotatably connected with the shell, one end of the elastic sheet extends into the shell and abuts against the lower side of the middle part of the elastic sheet, and the other end of the elastic sheet is arranged outside the shell and can be connected with a backrest of a seat; the inner part of the elastic sheet pressing plate is provided with an internal thread matched with the adjusting screw rod, the upper surface of the elastic sheet pressing plate is contacted with the upper surface of the inner part of the shell, and the lower surface of the elastic sheet pressing plate is provided with a semicircular pressing boss; the upper surface of the elastic sheet pressing table is provided with a semicircular stressed boss and is arranged on the upper surface of the movable end of the elastic sheet; the adjusting screw is in threaded connection with the elastic sheet pressing plate, the pressing boss is in contact with the stress boss, and the force of the backrest is transmitted to the middle of the elastic sheet through the backrest lever, so that the stress of the elastic sheet is more uniform.
Description
Technical Field
The invention relates to the field of furniture, in particular to a chassis inclination and elevation force adjusting device.
Background
Chinese publication No.: CN204561492U discloses a chair that can satisfy different human bodies and position of sitting needs, its power adjusting device that inclines and faces upward is such, with the one end of shell fragment and back fixed connection, the other end and chassis swing joint, then set up a pivot that can translate in the middle part of shell fragment, through changing the distance of pivot and shell fragment chassis end, adjust its power of inclining and facing upward, in the in-service use, this scheme exists that the shell fragment stress point is unset, consequently contact with the shell fragment, the surface of movable part can receive comparatively serious wearing and tearing, the condition that the part wearing and tearing became invalid can appear, has restricted life.
Disclosure of Invention
The invention provides a chassis leaning and leaning force adjusting device for providing a novel leaning and leaning force adjusting device, which comprises a shell, a backrest lever and an adjusting mechanism, wherein the adjusting mechanism comprises an elastic sheet, an elastic sheet pressing table, an elastic sheet pressing plate and an adjusting screw rod which are arranged in the shell, the elastic sheet is longitudinally arranged, one end of the elastic sheet is fixedly connected with the shell, a fulcrum of the backrest lever is rotatably connected with the shell, one end of the fulcrum of the backrest lever extends into the shell and abuts against the lower side of the middle part of the elastic sheet, and the other end of the fulcrum of the backrest lever is arranged outside the shell and can be connected with a backrest of a;
the inner part of the elastic sheet pressing plate is provided with an internal thread matched with the adjusting screw rod, the upper surface of the elastic sheet pressing plate is contacted with the upper surface of the inner part of the shell, and the lower surface of the elastic sheet pressing plate is provided with a semicircular pressing boss;
the upper surface of the elastic sheet pressing table is provided with a semicircular stressed boss and is arranged on the upper surface of the movable end of the elastic sheet;
the adjusting screw rod is in threaded connection with the elastic sheet pressing plate so as to enable the elastic sheet pressing plate to slide transversely, and the pressing boss is in contact with the stress boss.
Preferably, the backrest lever comprises a first force arm, a second force arm and a connecting shaft, wherein one end of the first force arm and one end of the second force arm are both provided with connecting holes for inserting the connecting shaft, the other end of the second force arm is further provided with a sliding pipe for abutting against the elastic sheet, and the connecting shaft is further sleeved with a sliding sleeve for being rotatably connected with the shell.
Preferably, the connecting shaft may have one of a polygonal tube and a tube with external splines, and the connecting hole has a shape matching the shape of the connecting shaft.
Preferably, the spring plate pressing table is further provided with an articulated arm, and the spring plate pressing table is articulated on the shell through the articulated arm.
Preferably, the adjusting device is provided with another set of adjusting mechanism and a backrest lever in a mirror image manner, and the thread part of the adjusting screw is provided with two sections of threads with the same length and opposite thread directions.
Preferably, the adjusting device further comprises a buffering device, the buffering device comprises a buffering pin arranged outside the shell, two ends of the buffering pin are respectively rotatably connected with the shell and the seat base, a torsion spring is arranged inside the buffering pin, and two ends of the torsion spring are respectively connected with the buffering pin and the shell.
The invention has the beneficial effects that: choose for use to pass through the middle part of back lever with the strength of back with power transmission to the shell fragment for the atress of shell fragment is more even, and through the depth of push down that changes shell fragment one end, the pressure of direct adjustment shell fragment makes and need not change the relative position of shell fragment stress point and can change the dynamics of heeling on, the maintenance of the shell fragment of being convenient for, the stress point relatively fixed of this kind of structure shell fragment simultaneously, the inside wearing and tearing of structure are less, reduce the condition that leads to the inefficacy because of wearing and tearing.
Drawings
FIG. 1 is a schematic perspective view of the present invention with a hidden housing, with a view angle from bottom to top;
FIG. 2 is a schematic perspective view of the present invention with the housing hidden, with the viewing angle from top to bottom;
FIG. 3 is a schematic view of the layout of the pressing boss and the stressed boss according to the modified form of the present invention;
FIG. 4 is a schematic layout of the spring plate pressing table according to the present invention;
FIG. 5 is a schematic view of the arrangement of the buffering legs of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings in which:
as shown in fig. 1-2, a chassis leaning and leaning force adjusting device comprises a shell, a backrest lever 2 and an adjusting mechanism, the shell is hollow, the adjusting mechanism comprises an elastic sheet 35, an elastic sheet pressing platform 31, an elastic sheet pressing plate 32 and an adjusting screw rod which are arranged in the shell 1, the elastic sheet 35 is arranged along the longitudinal direction of the shell, one end of the adjusting screw rod is fixedly connected with the shell, the other end is a movable end, a fulcrum of the backrest lever 2 is rotatably connected with the shell 1, one end of the adjusting screw rod extends into the shell and abuts against the lower side of the middle part of the elastic sheet 35, the other end of the adjusting screw rod is arranged outside the shell and can be connected with the backrest of the seat, two ends of the adjusting screw rod are rotatably connected with the loading shell, one end of the shell is fixedly provided with a transmission gear, the shell is rotatably connected with an adjusting wrench, the adjusting wrench is provided with an adjusting gear, the adjusting gear is meshed with the transmission gear, and the diameter of the adjusting gear is larger than that of the transmission gear;
the diameter of the adjusting gear is larger than that of the transmission gear, so that a user can rotate the adjusting screw rod through the adjusting wrench more easily.
The elastic sheet 35 is made of a material with good elasticity and toughness, and can be one of a glass fiber sheet and a carbon fiber sheet.
The inner part of the elastic sheet pressing plate 32 is provided with an internal thread matched with the adjusting screw rod, the upper surface of the elastic sheet pressing plate is contacted with the top surface of the inner part of the shell 1, and the lower surface of the elastic sheet pressing plate is provided with a semicircular pressing boss 321;
a pressing plate rail 11 is further arranged on the top surface inside the shell 1, the pressing plate rail 11 is a section of straight strip-shaped protrusion, and a groove matched with the pressing plate rail is further formed in the upper surface of the elastic plate pressing plate 32;
the provision of the platen rail 11 enables the dome platen 32 to travel in a more accurate trajectory and attitude.
The upper surface of the elastic sheet pressing platform 31 is provided with a semicircular stressed boss 311 and is arranged on the upper surface of the movable end of the elastic sheet 35;
the pressing boss 321 is in contact with the stress boss 311, the adjusting screw is in threaded connection with the spring plate pressing plate 32, and the adjusting screw is rotated to slide transversely, so that the pressing boss 321 extrudes the stress boss 311.
When the leaning and leaning force of the seat backrest needs to be increased, the adjusting screw rod is rotated, the downward pressing boss 321 is made to transversely slide, the downward pressing boss 321 extrudes the stress boss 311, the stress boss 311 is stressed to move downwards, the movable end of the elastic sheet 35 is pressed downwards, the elastic sheet 35 is bent, the backrest transmits force to the middle part of the elastic sheet 35 through the backrest lever 2, and the seat backrest needs to be leaned and leaned by a larger force, or vice versa.
The backrest lever 2 comprises a first force arm 21, a second force arm 22 and a connecting shaft 23, wherein one end of the first force arm 21 and one end of the second force arm 22 are both provided with connecting holes for inserting the connecting shaft 23, the first force arm 21 is positioned outside the shell 1, the second force arm 22 is positioned inside the shell 1, the other end of the second force arm is further provided with a sliding pipe 24 for abutting against the elastic sheet, the connecting shaft 23 is further sleeved with a sliding sleeve 25 for being connected with the shell 1 in a rotating mode, and the sliding sleeve 25 is arranged between the first force arm 21 and the second force arm 22.
The connecting shaft 23 may have one of a polygonal tube and a tube with external splines, and the connecting hole has a shape matching the outer shape of the connecting shaft 23.
As shown in fig. 4, the striking plate 31 further has an articulated arm 312, by which the striking plate 31 is articulated to the housing 1.
As an improved form of the scheme, referring to fig. 1 and fig. 2, a plane perpendicular to the adjusting screw is taken as a mirror image plane, and the adjusting device is further provided with another set of adjusting mechanism 3 and a backrest lever 2 in a mirror image manner;
the two second force arms 22 which are mirror images of each other are integrally formed, the two first force arms 21 which are mirror images of each other are integrally formed, and the transfer shaft simultaneously penetrates through the four force arms;
the thread part of the adjusting screw is provided with two threads with the same length and opposite thread directions, and the two elastic sheet pressing plates 32 which are mirror images can be close to each other or far away from each other by rotating the adjusting screw;
as shown in fig. 3, the elastic sheet pressing platform 31 may not be arranged in a mirror image manner, and only needs to be capable of contacting with two elastic sheets at the same time, and the force-bearing boss 311 is arranged between the two elastic sheets.
As an additional feature, as shown in fig. 5, the adjusting device further includes a buffering device, the buffering device includes a buffering pin 7 disposed outside the housing 1, two ends of the buffering pin 7 are respectively rotatably connected to the housing 1 and the seat base, a torsion spring is disposed inside the buffering pin 7, and two ends of the torsion spring are respectively connected to the buffering pin 7 and the housing 1.
After increasing buffer, the in-process that the user sat down, buffer will drive the motion of chair base below backward, offset a part impact force after, reply a locating position, increase the comfort that the user sat on the chair, also can increase the elasticity of base simultaneously, reduce the use of the required elastic fabric of base, effectively reduce the cost.
The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention described in the claims should be included in the claims.
Claims (7)
1. A chassis leaning and leaning force adjusting device is characterized by comprising a shell, a backrest lever and an adjusting mechanism, wherein the adjusting mechanism comprises an elastic sheet, an elastic sheet pressing table, an elastic sheet pressing plate and an adjusting screw rod which are arranged inside the shell, the elastic sheet is longitudinally arranged, one end of the elastic sheet is fixedly connected with the shell, a backrest lever fulcrum is rotatably connected with the shell, one end of the elastic sheet extends into the shell and abuts against the lower side of the middle part of the elastic sheet, and the other end of the elastic sheet is outside the shell and can be connected with a seat backrest;
the inner part of the elastic sheet pressing plate is provided with an internal thread matched with the adjusting screw rod, the upper surface of the elastic sheet pressing plate is contacted with the upper surface of the inner part of the shell, and the lower surface of the elastic sheet pressing plate is provided with a semicircular pressing boss;
the upper surface of the elastic sheet pressing table is provided with a semicircular stressed boss and is arranged on the upper surface of the movable end of the elastic sheet;
the adjusting screw is in threaded connection with the elastic sheet pressing plate, and the pressing boss is in contact with the stress boss.
2. The chassis leaning force adjusting device according to claim 1, wherein the backrest lever comprises a first force arm, a second force arm and a connecting shaft, wherein one end of the first force arm and one end of the second force arm are both provided with connecting holes for inserting the connecting shaft, the other end of the second force arm is further provided with a sliding tube for abutting against the elastic sheet, and the connecting shaft is further sleeved with a sliding sleeve for being rotatably connected with the shell.
3. The chassis leaning force adjusting device according to claim 2, wherein the connecting shaft has an outer shape of one of a polygonal tube and a tube with external splines, and the connecting hole has a shape matching the outer shape of the connecting shaft.
4. The chassis leaning force adjustment device of claim 1 wherein the resilient member pressing platform further comprises an articulated arm, and the resilient member pressing platform is articulated to the housing by the articulated arm.
5. The chassis leaning force adjusting device according to claim 1, wherein a pressing plate rail is further arranged on the upper surface inside the shell, the pressing plate rail is a straight strip-shaped protrusion, and a groove matched with the pressing plate rail is further arranged on the upper surface of the elastic pressing plate.
6. The chassis leaning force adjusting device according to any one of claims 1 to 5, wherein another set of adjusting mechanism and backrest lever are arranged in a mirror image manner on the adjusting device, and the thread portion of the adjusting screw is provided with two threads with the same length and opposite thread directions.
7. The chassis leaning force adjusting device according to claim 1, wherein the adjusting device further comprises a buffering device, the buffering device comprises a buffering leg arranged outside the housing, two ends of the buffering leg are respectively rotatably connected with the housing and the seat base, a torsion spring is arranged inside the buffering leg, and two ends of the torsion spring are respectively connected with the buffering leg and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023766.7A CN111150251A (en) | 2020-01-09 | 2020-01-09 | Chassis inclination force adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023766.7A CN111150251A (en) | 2020-01-09 | 2020-01-09 | Chassis inclination force adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111150251A true CN111150251A (en) | 2020-05-15 |
Family
ID=70562289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010023766.7A Pending CN111150251A (en) | 2020-01-09 | 2020-01-09 | Chassis inclination force adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111150251A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201085301Y (en) * | 2007-10-08 | 2008-07-16 | 刘智清 | Elevation and subsidence, tipping regulating mechanism for office chair |
| WO2010103554A1 (en) * | 2009-03-10 | 2010-09-16 | Effe Tre S.R.L. | Support device of a chair with tilting backrest |
| CN102133003A (en) * | 2011-01-30 | 2011-07-27 | 翁永联 | Revolving chair structure with stepless tipping regulation |
| CN102476598A (en) * | 2010-11-25 | 2012-05-30 | 朱斯忠 | Vehicular balance seat |
| CN205106964U (en) * | 2015-11-06 | 2016-03-30 | 邵春鸟 | Formula of can lying swivel chair |
| CN106913100A (en) * | 2015-12-28 | 2017-07-04 | 朱政臣 | Seat chassis with inclination and elevation force adjusting device |
| CN108248461A (en) * | 2018-02-07 | 2018-07-06 | 浙江圣奥家具制造有限公司 | A kind of seat adjuster and a kind of seat |
| CN108402755A (en) * | 2018-05-16 | 2018-08-17 | 杨有冬 | It is a kind of that there is the executive chair for stablizing load carrier |
| CN108402758A (en) * | 2018-05-17 | 2018-08-17 | 安吉金跃家具有限公司 | A kind of office rotary chair of more stability |
| CN211748206U (en) * | 2019-12-31 | 2020-10-27 | 东莞二昆虫家居科技有限公司 | Chassis of office chair |
-
2020
- 2020-01-09 CN CN202010023766.7A patent/CN111150251A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201085301Y (en) * | 2007-10-08 | 2008-07-16 | 刘智清 | Elevation and subsidence, tipping regulating mechanism for office chair |
| WO2010103554A1 (en) * | 2009-03-10 | 2010-09-16 | Effe Tre S.R.L. | Support device of a chair with tilting backrest |
| CN102476598A (en) * | 2010-11-25 | 2012-05-30 | 朱斯忠 | Vehicular balance seat |
| CN102133003A (en) * | 2011-01-30 | 2011-07-27 | 翁永联 | Revolving chair structure with stepless tipping regulation |
| CN205106964U (en) * | 2015-11-06 | 2016-03-30 | 邵春鸟 | Formula of can lying swivel chair |
| CN106913100A (en) * | 2015-12-28 | 2017-07-04 | 朱政臣 | Seat chassis with inclination and elevation force adjusting device |
| CN108248461A (en) * | 2018-02-07 | 2018-07-06 | 浙江圣奥家具制造有限公司 | A kind of seat adjuster and a kind of seat |
| CN108402755A (en) * | 2018-05-16 | 2018-08-17 | 杨有冬 | It is a kind of that there is the executive chair for stablizing load carrier |
| CN108402758A (en) * | 2018-05-17 | 2018-08-17 | 安吉金跃家具有限公司 | A kind of office rotary chair of more stability |
| CN211748206U (en) * | 2019-12-31 | 2020-10-27 | 东莞二昆虫家居科技有限公司 | Chassis of office chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200515 |
|
| RJ01 | Rejection of invention patent application after publication |