CN208425769U - A kind of office chair lifting back frame apparatus - Google Patents
A kind of office chair lifting back frame apparatus Download PDFInfo
- Publication number
- CN208425769U CN208425769U CN201721113439.0U CN201721113439U CN208425769U CN 208425769 U CN208425769 U CN 208425769U CN 201721113439 U CN201721113439 U CN 201721113439U CN 208425769 U CN208425769 U CN 208425769U
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- back frame
- bracket
- support
- right support
- left support
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Abstract
The utility model discloses a kind of office chairs to go up and down back frame apparatus, including back frame and bracket, the top of the bracket is mounted on inside back frame intermediate lift slideway, 2 U-shaped sliders are separately mounted at the top slot position of bracket rectangle, the middle vacancy of the rack-mount minister's square of eight words deck, inside the recessed column of cylinder of the cylindrical pillar insertion right support of the left support, the spring is mounted on left support and right support connects between the middle part notch to be formed, the left support and right support are close to eight word deck side walls under the effect of spring force, the left support and right support are mounted on the inside of fixing seat top circular hole, and it is fixed in the form of rivet shaft, the fixing seat is mounted on back frame front middle part and is fixed with 3 screws.The office chair goes up and down back frame apparatus, does not need control button, can freely carry out the function of lifting, simple and strong in structure, accessory is few, installation and easy to operate, and using low noise, production cost is low.
Description
Technical field
The utility model belongs to office chair structure technical field, and in particular to a kind of office chair lifting back frame apparatus.
Background technique
The dosser of existing office chair cannot be freely lifted, and need to realize the function of its lifting positioning by switch button
Can, it is not convenient enough that this structure operation is got up, and tool is easily damaged, and the production cost of traditional lifting structure is also relatively high, therefore has
Necessity studies a kind of new structure, so that lifting chair back realization is freely lifted function, reduces production cost.
Utility model content
The purpose of this utility model is to provide a kind of office chairs to go up and down back frame apparatus, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of office chair lifting back frame apparatus, including
Bracket, U-shaped slider, eight word decks, right support, left support, spring and fixing seat, the bracket are connect with Chair underpan, institute
The top for stating bracket is mounted on inside the hoistway among back frame, and respectively there are 2 recess in the two sides of the bracket, and the U-shaped is sliding
The inside of movable plate is equipped with 2 projections, the rack-mount portion two sides of U-shaped slider, and is embedded in recess by projection and fixes,
Middle part is equipped with rectangle vacancy on the bracket, and the eight words deck is mounted on rectangle vacancy, sets on the inside of the right support
There is cylindrical pillar, cylindrical recessed column is equipped on the inside of the left support, the cylindrical pillar insertion right support of the left support
Inside cylindrical recessed column, the spring is mounted on right support and left support connects between the middle part notch to be formed, the right support
It is close to eight word deck side walls under the effect of spring force with left support, the right support and left support are mounted on fixing seat top
The inside of circular hole, and fixed in the form of rivet shaft, it is solid by 3 screws that the fixing seat is mounted on back frame front middle part
It is fixed.
Preferably, 6 splayed configuration detents are provided in the eight words deck top.
Preferably, the bottom of the bracket is provided with the installation screw of distribution triangular in shape.
Preferably, the U-shaped slider is set as 2.
The technical effect and advantage of the utility model: the office chair goes up and down back frame apparatus, does not need control button, can be free
Carry out lifting function, it is simple and strong in structure, installation and it is easy to operate, using low noise, production cost is low.
Detailed description of the invention
Fig. 1 is the utility model explosive view；
Fig. 2 is the utility model installation diagram；
Fig. 3 is back frame structural schematic diagram；
Fig. 4 is supporting structure schematic diagram；
Fig. 5, Fig. 6 are U-shaped slider and eight word cartridge structure schematic diagrames；
Fig. 7, Fig. 8, Fig. 9, Figure 10 are left and right support, spring structure schematic diagram；
Figure 11 is pivot structure schematic diagram；
Figure 12 is shaft, left and right support, spring, fixing seat assembling schematic diagram；
Figure 13 is bracket, U-shaped slider assembling schematic diagram；
Figure 14 is bracket, eight word deck assembling schematic diagrams；
Figure 15 is bracket, U-shaped slider, eight word deck components and back frame assembling schematic diagram；
Figure 16 is shaft, left and right support, spring, fixed holder assembly and back frame assembling schematic diagram；
Figure 17, Figure 18 be lifting back component ramp up, structure drop schematic diagram；
Figure 19, Figure 20 are self-locking when being lifting back component lifting and release self-locking structural schematic diagram.
In figure: 1 back frame, 2 brackets, 3 U-shaped sliders, 4 eight word decks, 5 right supports, 6 springs, 7 left supports, 8 fixing seats,
9 shafts, 12 recess, 13 hoistways, 15 cylindrical pillars, 16 cylindrical recessed columns, 18 rectangle vacancy, 19 projections.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of office chair lifting back frame apparatus as shown in Fig. 1-2 0, including bracket 2, U-shaped are slided
Movable plate 3, eight word decks 4, right support 5, left support 7, spring 6 and fixing seat 8, the bracket 2 are connect with Chair underpan, the branch
The top of frame 2 is mounted on inside the hoistway 13 among back frame 1, and respectively there are 2 recess 12, the U-shaped in the two sides of the bracket 2
The inside of slider 3 is equipped with 2 projections 19, and the U-shaped slider 3 is mounted on 2 top two sides of bracket, and is embedded in by projection 19
Recess 12 is fixed, and middle part is equipped with rectangle vacancy 18 on the bracket 2, and the eight words deck 4 is mounted on rectangle vacancy 18,
It is equipped with cylindrical pillar 15 on the inside of the right support 5, cylindrical recessed column 16 is equipped on the inside of the left support 7, the left support 5
Cylindrical pillar 15 is embedded in inside the recessed column 16 of cylinder of right support 7, and the spring 6 is mounted on right support 5 and left support 7 connects
Between the middle part notch of formation, the right support 5 and left support 7 are close to eight word decks, 4 side wall under the action of 6 elastic force of spring,
The right support 5 and left support 7 are mounted on the inside of 8 top circular hole of fixing seat, and are fixed in the form of rivet shaft 9,
The fixing seat 8 is mounted on 1 front middle part of back frame and is fixed by 3 screws, is provided with 6 eight words in eight words deck, 4 top
Type detent, the bottom of the bracket 2 are provided with the installation screw of distribution triangular in shape, and the U-shaped slider 3 is set as 2.
Working principle:
As shown in figure 15: U-shaped slider 3 is between bracket 2 and 13 gap of hoistway of back frame 1, and bracket 2 is can be with
It moves up and down, 2 U-shaped sliders 3 are embedded in bracket 2 to be moved up and down with bracket 2, and 2 U-shaped sliders 3 play reduction
Loosening and the effect of friction.
As shown in Figure 12 to Figure 20: right support 5 and 7 top circular hole of left support and spring 6 are in eight word decks 4, are passed through
Shaft 9 is fixed on 8 middle part circular hole of fixing seat in the form of rivet, and can be rotated, and eight word decks has multiple splayed configurations in 4 top
Detent, right support 5 and left support 7 are close to eight word decks, 4 side wall under the action of 6 elastic force of spring, when the chair back rises in left branch
Compressed spring 6 is squeezed in support 5 and right support 7, rising can not be limited by detent, is existed in chair back decline in right support 5 and left support 7
Spring 6 expands lower bottom part and withstands splayed detent two sides, can stop declining, there is the detent of multiple splayed configurations in eight word decks 4,
Illustrate that the utility model there are multiple and different height gears adjustable, right support 5 and left support 7 have self-locking mechanism, and right support 5 has one
Cylindrical pillar 15, left support 7 have the recessed column 16 of a cylinder, when support moves to eight word 4 tops of deck with the chair back, eight word cards
4 two sides 21 of seat squeeze right support 5 and 7 spring 6 of left support is compressed into left and right support and closes up, 7 quilt of such right support 5 and left support
Respective boss and concave station lock 22 and are not separating, width of the width less than eight word decks, 4 detent of two such support, right branch
Support 5 and left support 7 and 1 position of back frame can avoid latch position and freely move up and down, when support moves to eight word decks, 4 bottom with the chair back
When, support arc position 24 among bottom and eight word decks, 4 detent bottom to collide, after collision, right support 5 and left support 7 are respective convex
Platform and concave station strut to the left and right, and at this moment left and right support unlocks 23, are close to the side of splayed detent under spring force
Wall 25 realizes multistage adjustment function upwards again.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of office chair goes up and down back frame apparatus, including bracket (2), U-shaped slider (3), eight word decks (4), right support (5),
Left support (7), spring (6) and fixing seat (8), the bracket (2) connect with Chair underpan, it is characterised in that: the bracket (2)
Top be mounted on that the intermediate hoistway (13) of back frame (1) is internal, and respectively there are 2 recess (12), institute in the two sides of the bracket (2)
The inside for stating U-shaped slider (3) is equipped with 2 projections (19), and the U-shaped slider (3) is mounted on bracket (2) top two sides, and
Fixed by projection (19) insertion recess (12), middle part is equipped with rectangle vacancy (18) on the bracket (2), the eight words deck
(4) it is mounted on rectangle vacancy (18), cylindrical pillar (15) is equipped on the inside of the right support (5), the left support (7) is interior
Side is equipped with cylindrical recessed column (16), the recessed column of cylinder of cylindrical pillar (15) insertion right support (5) of the left support (7)
(16) internal, between the middle part notch that the spring (6) is mounted on right support (5) and left support (7) connection is formed, the right branch
Support (5) and left support (7) are close to eight word deck (4) side walls, the right support (5) and left branch under the action of spring (6) elastic force
Support (7) is mounted on the inside of fixing seat (8) top circular hole, and is fixed in the form of rivet shaft (9), the fixing seat
(8) back frame (1) front middle part is mounted on to fix by 3 screws.
2. a kind of office chair according to claim 1 goes up and down back frame apparatus, it is characterised in that: on the eight words deck (4)
6 splayed configuration detents are provided in portion.
3. a kind of office chair according to claim 1 goes up and down back frame apparatus, it is characterised in that: the bottom of the bracket (2)
It is provided with the installation screw of distribution triangular in shape.
4. a kind of office chair according to claim 1 goes up and down back frame apparatus, it is characterised in that: the U-shaped slider (3) sets
It is set to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113439.0U CN208425769U (en) | 2017-09-01 | 2017-09-01 | A kind of office chair lifting back frame apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113439.0U CN208425769U (en) | 2017-09-01 | 2017-09-01 | A kind of office chair lifting back frame apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208425769U true CN208425769U (en) | 2019-01-25 |
Family
ID=65104478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721113439.0U Active CN208425769U (en) | 2017-09-01 | 2017-09-01 | A kind of office chair lifting back frame apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208425769U (en) |
-
2017
- 2017-09-01 CN CN201721113439.0U patent/CN208425769U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |