CN207544715U - A kind of Revolving chair chassis - Google Patents
A kind of Revolving chair chassis Download PDFInfo
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- CN207544715U CN207544715U CN201720713876.XU CN201720713876U CN207544715U CN 207544715 U CN207544715 U CN 207544715U CN 201720713876 U CN201720713876 U CN 201720713876U CN 207544715 U CN207544715 U CN 207544715U
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- locking
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Abstract
The utility model discloses a kind of Revolving chair chassis, u-bracket and locking teeth group are installed on bottom plate；U-bracket is hinged by connection rivet and activity mid-game；Taper Pipe is welded in activity mid-game, back-end disk is provided with card slot in activity, and the card slot is corresponding with locking teeth group to be clamped；Riveting has locking rivet between the riser of activity mid-game both sides, and structure fixed plate is welded and fixed with activity mid-game；One cant board of activity mid-game is set with lifting regulating rod；Another cant board of activity mid-game is set with locking adjusting rod, locks and is set with locking regulating part on adjusting rod inner segment circumference；Lock sheet is provided in activity between the locking pressure plate of back-end disk and structure fixed plate, lock sheet is connect by guide pin with serpentine spring, and serpentine spring front end is connect with locking regulating part；After screw rod upper end is pierced by activity mid-game upwards, screw rod upper end is connect with elastic force handwheel inner cavity bush whorl；Screw rod excircle is set with compression spring.The utility model it is compact-sized, function is reliable.
Description
Technical field
The utility model belongs to swivel chair equipment technical field, is related to a kind of Revolving chair chassis.
Background technology
The chassis of existing swivel chair is worked in coordination use by two springs, carrys out the locking control function of implementation mechanism, this
Kind of structure needs the elastic force between two springs to reach an equalization point, and the elastic force of this two spring itself is smaller, production and
This two springs is easily made to lose dynamic balance during use, lead to function out of hand.
In addition, existing Revolving chair chassis is fitted without protective cover, the contingency of clamp hand is be easy to cause during use, i.e.,
It is dangerous and unsightly.
Utility model content
The utility model provides a kind of Revolving chair chassis, solves the prior art and is worked in coordination use by two springs,
When locking control spring force is unbalance, it be easy to cause the problem of control is failed.
The technical solution of the utility model is a kind of Revolving chair chassis, including bottom plate, is longitudinally divided from front to back on bottom plate
It is not installed with u-bracket and locking teeth group；It is corresponding on the riser on u-bracket both sides to be installed with a connection rivet, connect riveting
Nail both sides are hinged respectively by a bushing with activity mid-game；Activity mid-game upper surface middle part is welded with Taper Pipe rearward, living
Dynamic mid-game upper table surface rear end is provided with card slot, and the card slot is corresponding with the bayonet on locking teeth group top to be clamped；
Riveting has locking rivet between the both sides riser of activity mid-game, is vertically arranged between locking rivet and connection rivet
There is structure fixed plate, structure fixed plate is welded and fixed with activity mid-game；Threading in one cant board trepanning of activity mid-game, the set
Lifting regulating rod is set in pipe, the outer end of lifting regulating rod is set with elevating control handle；Another cant board of activity mid-game is opened
Locking adjusting rod is set in hole, locking adjusting rod inner end penetrates the supported hole of structure fixed plate, locks adjusting rod inner segment circumference
On be set with locking regulating part, locking regulating part is fixed with locking adjusting rod by fixed pin, is locked adjusting rod outer end and is set with
Lock control handle；
Back-end disk lower surface is welded with locking pressure plate by inner position in activity, and the middle part of locking pressure plate is provided with along longitudinal direction
One guide groove, the space between locking pressure plate and structure fixed plate are provided with lock sheet, guide pin are fixed on lock sheet,
Guide pin passes through the guide groove of locking pressure plate to be fixedly connected with the lasso of serpentine spring rear end, and serpentine spring front end is adjusted with locking
Part hooks connection；
After screw rod upper end is pierced by activity mid-game upwards, screw rod upper end periphery screw thread passes through screw thread with elastic force handwheel inner cavity sleeve
Connection；Screw rod excircle is set with compression spring, compression spring upper end and elastic force handwheel inner cavity sleeve apical grafting, compression spring lower end in activity mid-game
Surface apical grafting.
Revolving chair chassis described in the utility model, feature further include：
The locking teeth group is provided with multiple grooves from top to bottom in face of lock sheet, and corresponding activity mid-game rotates different angles
Lock sheet stretching activity mid-game enters in different grooves after degree.
The locking regulating part setting is there are two elastic groove, which is able to and locking rivet clamps
It contradicts.
The forepart of the bottom plate offers square hole, and screw rod lower end is equipped with square structure card, the square structure card and bottom
The square hole snap fit of plate.
Bowl-type gasket and ball gasket, compression spring periphery are provided between the compression spring upper end and elastic force handwheel inner cavity sleeve
It is provided with compression spring sheath.
Protective cover there are one claddings in the activity mid-game, protective cover are connected downwards by multiple fixing screws with bottom plate
It connects；Protective cover top top plate is provided with two circular cavities, corresponding respectively to expose Taper Pipe and elastic force handwheel；Protective cover both side plate has
One deep trouth, it is corresponding respectively to expose locking control handle and elevating control handle.
Gasket is provided between the lasso of the serpentine spring rear end and the guide groove surface of locking pressure plate.
The beneficial effects of the utility model are to substitute spring assembly with a serpentine spring, the processing of spring is made more to hold
Easily, mechanism will not fail；In entire activity mid-game is all coated in integral type protective cover, activity mid-game is prevented in reclining
The finger of user or child are clamped in Cheng Zhong, the gap between activity mid-game and bottom plate, simultaneously so that appearance is more beautiful.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model (covering protective cover)；
Fig. 2 is the overall structure diagram of the utility model (opening protective cover)；
Fig. 3 is the structure diagram of the utility model activity mid-game (inner cavity is upward)；
Fig. 4 is the whole decomposition texture schematic diagram of the utility model.
In figure, 1, bottom plate, 2, locking control handle, 3, protective cover, 4, Taper Pipe, 5, elastic force handwheel, 6, elevating control handle,
7th, fixing screws, 8, structure fixed plate, 9, locking adjusting rod, 10, activity mid-game, 11, locking teeth group, 12, compression spring sheath, 13, U
Type stent, 14, locking rivet, 15, lifting regulating rod, 16, screw rod, 17, connection rivet, 18, bushing, 19, compression spring, 20, bowl-type
Gasket, 21, ball gasket, 22, lock sheet, 23, gasket, 24, guide pin, 25, serpentine spring, 26, locking regulating part, 27,
Fixed pin, 28, casing, 29, locking pressure plate.
Specific embodiment
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are the view of bottom surface upward.Front and back up and down described in context below descriptive statement
Position is illustrated as foundation with each figure, actual installation position and so on.
As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, the structure of the utility model are, including bottom plate 1, bottom plate 1 is one in entire chassis
A component has 4 mounting holes on bottom plate 1, is mounted on by screw on the seat board of chair；On bottom plate 1 longitudinally from front to back
It is installed with u-bracket 13 and locking teeth group 11 respectively, (u-bracket 13 can also pass through the side of welding with locking teeth group 11
Formula and 1 one of bottom plate are fixed)；Correspondence is provided with coaxial a pair of of circular hole on the riser on 13 both sides of u-bracket, this in circular hole to being installed with
A piece connection rivet 17,17 both sides of connection rivet are hinged by a bushing 18 and activity mid-game 10 respectively, 10 energy of activity mid-game
It is enough to be rotated using connection rivet 17 as shaft；10 upper surface middle part of activity mid-game is welded with Taper Pipe 4 rearward, in activity
10 upper table surface rear end of disk is provided with card slot, and the card slot is corresponding with the bayonet on 11 top of locking teeth group to be clamped；
Such as Fig. 3, in addition riveting has locking rivet 14 between the both sides riser of activity mid-game 10, in locking rivet 14 with connecting
Structure fixed plate 8 is vertically installed between rivet 17, structure fixed plate 8 is welded and fixed with activity mid-game 10；Activity mid-game 10 1
Threading 28 and 28 inner end of casing is welded and fixed with structure fixed plate 8 in cant board trepanning, liter is set in the casing 28
Falling tone pole 15, the outer end of lifting regulating rod 15 are set with elevating control handle 6；It is covered in 10 another cant board trepanning of activity mid-game
Equipped with locking adjusting rod 9,9 inner end of locking adjusting rod penetrates the supported hole of structure fixed plate 8, locks on 9 inner segment circumference of adjusting rod
Locking regulating part 26 is set with, locking regulating part 26 is realized by the fixation of fixed pin 27 with locking adjusting rod 9 and rotated synchronously, and is prevented
It mutually loosens, 9 outer end of locking adjusting rod is set with locking control handle 2；It is welded by inner position 10 rear end lower surface of activity mid-game
Locking pressure plate 29 is fixed with, the middle part of locking pressure plate 29 is opened along longitudinal direction there are one guide groove, in locking pressure plate 29 and structure fixed plate 8
Between space be provided with the lock sheet 22 to move longitudinally, guide pin 24 is fixed on lock sheet 22, guide pin 24 is worn
The guide groove for crossing locking pressure plate 29 is fixedly connected with the lasso of 25 rear end of serpentine spring, the lasso of the rear end and leading for locking pressure plate 29
Gasket 23 is provided between rooved face, 25 front end of serpentine spring hooks with locking regulating part 26 and connects；
Locking rivet 14 is fixedly connected in activity mid-game 10, and the setting of locking regulating part 26, should there are two the groove of elasticity
Two elastic grooves are half 8-shaped resilient shapes, and with the rotation of locking regulating part 26, which is able to and locks
Tight rivet 14 is clamped to contradict but cannot clamp with locking rivet 14 simultaneously and be contradicted；When one of groove contradicts locking rivet 14
When, limiting locking regulating part 26 makes it that can not voluntarily be rotated in the case where no external force acts on, at this time 22 outer end of lock sheet
Along to 10 back edge of activity mid-game is exposed outside, put in some tooth socket of locking teeth group 11.
Such as Fig. 4, the forepart of bottom plate 1 offers square hole, and the forepart of activity mid-game 10 offers long waist type hole flanging, under screw rod 16
End is equipped with square structure card, and the square hole snap fit of the square structure card and bottom plate 1 prevents screw rod 16 from rotating, on screw rod 16
After end is pierced by activity mid-game 10 upwards, 16 upper end periphery screw thread of screw rod is connected through a screw thread with 5 inner cavity sleeve of elastic force handwheel；Screw rod
16 excircles are set with compression spring 19,19 upper end of compression spring and 5 inner cavity sleeve apical grafting of elastic force handwheel, 19 upper end of compression spring and elastic force handwheel 5
Bowl-type gasket 20 and ball gasket 21,19 lower end of compression spring and 10 upper surface apical grafting of activity mid-game, pressure are provided between the sleeve of inner cavity
19 periphery of spring is provided with compression spring sheath 12；By twisting elastic force handwheel 5 manually, the preload elastic force of compression spring 19 is adjusted so that activity
Mid-game 10 need to overcome the preload elastic force of compression spring 19 when being rotated around connection rivet 17, when being adjusted so as to form chair reclining
Elastic force seat sense.
Such as Fig. 4, locking teeth group 11 is provided with multiple grooves from top to bottom in face of lock sheet 22, and corresponding activity mid-game 10 rotates
22 stretching activity mid-game 10 of lock sheet enters in different grooves after different angle, to lock the angle of rotation of activity mid-game 10
Degree limits the elevation angle of chair；
Such as Fig. 1, aprowl on disk 10 cladding there are one protective cover 3, protective cover 3 by multiple fixing screws 7 downwards with
Bottom plate 1 connects；3 top top plate of protective cover is provided with two circular cavities, corresponding respectively to expose Taper Pipe 4 and elastic force handwheel 5；3 liang of protective cover
Side plate has a deep trouth, corresponding respectively to expose locking control handle 2 and elevating control handle 6.
Chair will assemble the backrest of chair, must just fix backrest and sitting board of chair, seat board and be leaned on when reclining
Seat board and backrest can also be regarded as an entirety by the angle that the back of the body is while reclining is identical.
The operation principle of the utility model is,
1) elevating control function
Taper Pipe 4 is sleeved on the head of lifting air bar, and 15 movable set of lifting regulating rod is in casing 28, in lifting regulating rod 15
End upsetting is flat and resists the head switch of lifting air bar, and outer end is pierced by the fixed elevating control handle 6 of the connection of activity mid-game 10；Pull liter
Control handle 6 is dropped, lifting regulating rod 15 is driven to be rotated in casing 28, the inner face for making 15 upsetting of lifting regulating rod flat squeezes lifting
The head switch of gas bar so as to start elevating mechanism work, realizes the lifting of seat.
2) reclining locking function
Lock sheet 22 is movably arranged in the gap between locking pressure plate 29 and structure fixed plate 8, among locking pressure plate 29
Position is provided with the guide groove of a longitudinal direction, the guide pin 24 on lock sheet 22 pass through after the guide groove and gasket 23 with serpentine spring
The lasso connection of 25 rear ends, since the guide pin 24 on lock sheet 22 is merely able to slide back and forth along guide groove direction, it is impossible to left
Right slip, therefore the longitudinal separation that guide pin 24 slides in 29 guide groove of locking pressure plate limits the elastic position of lock sheet 22
It puts and distance；The front end of serpentine spring 25 is hooked on locking regulating part 26, and the outer end and fixed locking for locking adjusting rod 9 control
Handle 2 is fixedly connected, and locking 9 inner end of adjusting rod is fixed by fixed pin 27 and locking regulating part 26, and locking regulating part 26 is with one
10 riser inner wall of side end face conflict activity mid-game, another side end face contradict 8 side wall of structure fixed plate, drive locking adjusting rod 9
Locking regulating part 26 can only be rotated and cannot be extracted；Locking rivet 14 is fixedly connected in activity mid-game 10, and locking regulating part 26 is set
The groove of half 8-shaped elasticity is put, one of groove is made to contradict locking rivet 14, limiting locking regulating part 26 is not having it
External force can not be rotated voluntarily when acting on, and 22 outer end of lock sheet is along except stretching activity mid-game 10 at this time；In locking teeth group 11
There is provided several grooves, the 22 stretching activity mid-game 10 of lock sheet in activity mid-game 10 is stretched into the groove of locking teeth group 11, is limited
The rotation of activity mid-game 10 has been made, has been as shown in Figure 2 and Figure 3 locking state；
During unlocking, with hand rotation lock control handle 2, locking regulating part 26 is driven to rotate by locking adjusting rod 9, make lock
Tight regulating part 26 overcomes the resistance of half 8-shaped groove, turns in another groove of half 8-shaped；Meanwhile lock regulating part
26 pulling serpentine springs 25 moved into activity mid-game 10, serpentine spring 25 pull guide pin 24 simultaneously drive lock sheet 22 to
It is moved in activity mid-game 10, lock sheet 22 is made to leave the groove of locking teeth group 11, mechanism is in (release) state of unlocking, lives at this time
Dynamic mid-game 10 can be freely rotated around connection rivet 17.Mechanism can be made to restore to locking conversely, reversely adjusting locking control handle 2
Tight state.
During lock sheet 22 is unclamped or is locked, if lock sheet 22 can not be moved by the extruding of external force,
Serpentine spring 25 will be stretched or be compressed always, generated elastic force and be in stored energy state, once the external force on lock sheet 22 disappears,
The elastic force of serpentine spring 25 will drive lock sheet 22 to move at once, realize that serpentine spring 25 stores the action command before power, this existing
As being known as locking back protective function of trying hard to keep with function.
3) elastic force is adjusted
Screw rod 16 passes through the square hole of 1 front end of bottom plate, is upward through activity mid-game 10, compression spring 19, bowl-type gasket 20, ball pad
Piece 21 is threadedly coupled elastic force handwheel 5, makes activity mid-game 10 that need to overcome the bullet of compression spring 19 when being rotated around connection rivet 17
Power so as to form elastic force seat sense during chair reclining, twists elastic force handwheel 5, can compress or unclamp in advance compression spring 19
Home position elastic force is adjusted elastic force during activity 10 reclining of mid-game.
4) in entire activity mid-game 10 is all coated on by protective cover 3, fixing screws 7 connect across bottom plate 1 and by protective covers 3
It is fixed on bottom plate 1, the operation of above-mentioned regulating member is made all to cover in protective cover 3, prevents activity mid-game 10 in reclining
The finger of user or child are clamped in Cheng Zhong, the gap between activity mid-game 10 and bottom plate 1, simultaneously so that appearance is more beautiful
It sees.
The innovative point of the utility model is, using the regulating mechanism for locking of serpentine spring and the protective cover of integral shape
3, which is one-time formed single part, and the similar chassis of the prior art combines to be formed using two plastic articles
One protective cover.
Claims (7)
1. a kind of Revolving chair chassis, it is characterized in that：Including bottom plate (1), bottom plate is longitudinally fixedly mounted respectively from front to back on (1)
There are u-bracket (13) and locking teeth group (11)；Correspondence is installed with a connection rivet (17) on the riser on u-bracket (13) both sides,
Connection rivet (17) both sides are hinged by a bushing (18) and activity mid-game (10) respectively；Activity mid-game (10) upper surface middle part
It is welded with Taper Pipe (4) rearward, activity mid-game (10) upper table surface rear end is provided with card slot, on the card slot and locking teeth group (11)
The bayonet in portion, which corresponds to, to be clamped；
Riveting has locking rivet (14) between the both sides riser of activity mid-game (10), in locking rivet (14) and connection rivet (17)
Between be vertically installed with structure fixed plate (8), structure fixed plate (8) is welded and fixed with activity mid-game (10)；Activity mid-game (10)
Threading (28) in one cant board trepanning is set with lifting regulating rod (15) in the casing (28), lifting regulating rod (15)
Outer end is set with elevating control handle (6)；Locking adjusting rod (9), lock are set in another cant board trepanning of activity mid-game (10)
Tight adjusting rod (9) inner end penetrates the supported hole of structure fixed plate (8), locks and locking tune is set on adjusting rod (9) inner segment circumference
Part (26) is saved, locking regulating part (26) is fixed by fixed pin (27) with locking adjusting rod (9), locks adjusting rod (9) outer end cap
Equipped with locking control handle (2)；
Activity mid-game (10) rear end lower surface is welded with locking pressure plate (29), the middle part edge of locking pressure plate (29) by inner position
Longitudinal direction is opened there are one guide groove, and the space between locking pressure plate (29) and structure fixed plate (8) is provided with lock sheet (22), is locked
Be fixed with guide pin (24) on piece (22), guide pin (24) across locking pressure plate (29) guide groove with after serpentine spring (25)
The lasso at end is fixedly connected, and serpentine spring (25) front end hooks with locking regulating part (26) and connects；
After screw rod (16) upper end is pierced by activity mid-game (10) upwards, screw rod (16) upper end periphery screw thread and elastic force handwheel (5) inner cavity
Sleeve is connected through a screw thread；Screw rod (16) excircle is set with compression spring (19), and compression spring (19) upper end is covered with elastic force handwheel (5) inner cavity
Cylinder apical grafting, compression spring (19) lower end and activity mid-game (10) upper surface apical grafting.
2. Revolving chair chassis according to claim 1, it is characterized in that：The locking teeth group (11) in face of lock sheet (22) from
Top to bottm is provided with multiple grooves, and corresponding activity mid-game (10) rotates lock sheet (22) stretching activity mid-game (10) after different angle
Into in different grooves.
3. Revolving chair chassis according to claim 1, it is characterized in that：There are two elasticity for locking regulating part (26) setting
Groove, two grooves be able to locking rivet (14) clamp contradict.
4. Revolving chair chassis according to claim 1, it is characterized in that：The forepart of the bottom plate (1) offers square hole, screw rod
(16) lower end is equipped with square structure card, the square hole snap fit of the square structure card and bottom plate (1).
5. Revolving chair chassis according to claim 1, it is characterized in that：Compression spring (19) upper end is interior with elastic force handwheel (5)
Bowl-type gasket (20) and ball gasket (21) are provided between chamber sleeve, compression spring (19) periphery is provided with compression spring sheath (12).
6. Revolving chair chassis according to claim 1, it is characterized in that：There are one protect for cladding in the activity mid-game (10)
It covers (3), protective cover (3) is connect downwards by multiple fixing screws (7) with bottom plate (1)；There are two protective cover (3) top top plate is opened
Hole, it is corresponding respectively to expose Taper Pipe (4) and elastic force handwheel (5)；Protective cover (3) both side plate has a deep trouth, right respectively
Locking control handle (2) and elevating control handle (6) should be exposed.
7. Revolving chair chassis according to claim 1, it is characterized in that：The lasso of described serpentine spring (25) rear end and locking
Gasket (23) is provided between the guide groove surface of pressing plate (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720713876.XU CN207544715U (en) | 2017-06-19 | 2017-06-19 | A kind of Revolving chair chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720713876.XU CN207544715U (en) | 2017-06-19 | 2017-06-19 | A kind of Revolving chair chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207544715U true CN207544715U (en) | 2018-06-29 |
Family
ID=62671892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720713876.XU Active CN207544715U (en) | 2017-06-19 | 2017-06-19 | A kind of Revolving chair chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207544715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481008A (en) * | 2020-06-10 | 2020-08-04 | 浙江安吉铭成椅业有限公司 | Seat tray structure and office chair |
-
2017
- 2017-06-19 CN CN201720713876.XU patent/CN207544715U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481008A (en) * | 2020-06-10 | 2020-08-04 | 浙江安吉铭成椅业有限公司 | Seat tray structure and office chair |
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