CN206994949U - A kind of height-adjustable backrest - Google Patents
A kind of height-adjustable backrest Download PDFInfo
- Publication number
- CN206994949U CN206994949U CN201720090988.4U CN201720090988U CN206994949U CN 206994949 U CN206994949 U CN 206994949U CN 201720090988 U CN201720090988 U CN 201720090988U CN 206994949 U CN206994949 U CN 206994949U
- Authority
- CN
- China
- Prior art keywords
- circular hole
- fixed
- height
- iron piece
- adjustable backrest
- 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.)
- Expired - Fee Related
Links
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Special Chairs (AREA)
Abstract
The utility model discloses a kind of height-adjustable backrest, including back frame, fixed iron piece, back steel sheet, bonnet and handwheel, the back frame is fixed with fixed iron piece by fixed structure；The circular hole post of the centrally disposed protrusion of fixed iron piece, the back steel sheet includes left plate and right steel plate, the bonnet is with fixed structure by snapping connection, the bonnet opening position corresponding with the circular hole post on fixed iron piece sets circular hole, and the circular hole of the handwheel through bonnet is attached with circular hole post；Height-adjustable backrest of the present utility model, simple in construction, easy to make, production cost is relatively low, and more comfortable convenient experience can be brought to user.
Description
Technical field
Backrest field is the utility model is related to, in particular, it is related to a kind of height-adjustable backrest.
Background technology
Backrest is usually used on the seat in people's work, all kinds of convenience stores of living, and obtains the universal approval of people and likes,
Higher and higher requirement it is also proposed to it, there should be good security, increase comfort level again, what can be varied with each individual enters
Row adjustment.This just needs more humane, more comfortable design.
The content of the invention
The utility model overcomes the deficiencies in the prior art, there is provided and it is a kind of cost savings, simple in construction, easy to make,
A kind of height-adjustable backrest of more comfortable experience is brought to user.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows：
A kind of height-adjustable backrest, including back frame, fixed iron piece, back steel sheet, bonnet and handwheel, the back frame use
Arcuate structure, back frame are provided centrally with fixed structure, and the back frame is fixed with fixed iron piece by fixed structure；It is described solid
Determine the circular hole post of the centrally disposed protrusion of iron plate, mounting hole is set on the fixed iron piece, opening position corresponding to fixed structure is set
There is screwed hole, the fixed iron piece is fixed with fixed structure by bolt；The back steel sheet includes left plate and right steel plate,
Left plate and right steel plate all include " L " shape pitman, sliding panel and location-plate, one end of the pitman and slip plate weld,
The other end and positioning plate weld, the sliding panel set half elliptic groove, set on location-plate among the side away from pitman
It is equipped with the connecting hole being connected with external seat, left plate and right steel plate to be fixed by welding, forms complete slide
Regulating tank；The bonnet, by snapping connection, covers the slidable adjustment groove of back steel sheet with fixed structure；The bonnet and fixation
The corresponding opening position of circular hole post on iron plate sets circular hole, and the circular hole of the handwheel through bonnet is attached with circular hole post.
Further, the back frame front sets cushion, and back frame prolongs side to central concave.
Further, internal thread is set on the circular hole column wall.
Further, the handwheel connecting portion sets external screw thread, and the internal thread of itself and circular hole post is adapted.
Further, the circular hole post size in the size and fixed iron piece of the slidable adjustment groove of the back steel sheet is adapted,
Circular hole post slides in slidable adjustment groove.
Further, the groove being adapted with pitman is provided with the fixed structure.
Further, it is evenly arranged with small boss around the one end of the handwheel away from circular hole post.
Further, the one end of the handwheel away from circular hole post is provided with cross recess.
Advantage is the utility model compared with prior art：The utility model structure design is simple, reasonable, easy to make,
Practical, production cost is relatively low, easily promotes the use of.The appropriate regulation of height can be carried out, is brought more to user
Comfortable convenient experience.And be damaged, the replacing to component home is also very convenient.
Brief description of the drawings
Fig. 1 is a kind of explosive view of height-adjustable backrest of the utility model；
Fig. 2 is a kind of side view of height-adjustable backrest of the utility model；
Fig. 3 is a kind of structure chart of height-adjustable backrest of the utility model；
Fig. 4 is a kind of enlarged drawing of Fig. 1 of height-adjustable backrest fixed iron piece of the utility model.
In figure mark for：Back frame 1, fixed structure 2, screwed hole 21, groove 22, fixed iron piece 3, circular hole post 31, mounting hole
32nd, back steel sheet 4, slidable adjustment groove 41, pitman 42, location-plate 43, bonnet 5 and handwheel 6.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, a kind of height-adjustable backrest, including back frame 1, fixed iron piece 3, back steel sheet 4, the and of bonnet 5
Handwheel 6.The back frame 1 uses arcuate structure, prolongs side and sets cushion to central concave, front, user can comfortably lean against very much
Above will not be very stiff, and it is solid, fixed structure 2 is provided centrally with back frame 1, can further carry out stress increase safety
Property.The back frame 1 is fixed with fixed iron piece 3 by fixed structure 2.As shown in figure 4, the fixed iron piece 3 is centrally disposed
Prominent circular hole post 31, internal thread is set on the inwall of circular hole post 31.Mounting hole 32 is set on the fixed iron piece 3, it is fixed
Opening position corresponding to structure 2 is provided with screwed hole 21, and fixed iron piece 3 is fixed with fixed structure 2 by bolt, rugged construction
Firm, production cost is low.The back steel sheet 4 includes left plate and right steel plate, and left plate and right steel plate all include " L " shape pitman
42nd, sliding panel and location-plate 43, the groove 22 being adapted with pitman 42 is provided with the fixed structure 2, thus can be very
Good saving space material, reduces cost.Welded with sliding plate weld, the other end with location-plate 43 one end of the pitman 42
Connect, the sliding panel sets half elliptic groove among the side away from pitman 42, be provided with and external seat on location-plate 43
The connecting hole that chair is connected.Left plate and right steel plate are fixed by welding, i.e. the sliding panel of left plate and right steel plate
The side that sliding panel has half elliptic groove is welded and fixed, and forms complete slidable adjustment groove 41；The location-plate of left plate
43 are welded and fixed with side of the location-plate 43 of right steel plate away from pitman 42.The bonnet 5 passes through card with fixed structure 2
Button connection, and cover the slidable adjustment groove 41 of back steel sheet 4, i.e. bonnet 5 covers whole sliding panel.The bonnet 5 and fixed iron
The corresponding opening position of circular hole post 31 on piece 3 sets circular hole, and the circular hole of the handwheel 6 through bonnet 5 is carried out with circular hole post 31
Connection.The connecting portion of handwheel 6 sets external screw thread, and the internal thread of itself and circular hole post 31 is adapted.Thus can be according to reality
Need the height distance revealed of regulation back steel sheet 4, the i.e. height of back frame 1.The slidable adjustment groove 41 of the back steel sheet 4 it is big
The small size of circular hole post 31 with fixed iron piece 3 is adapted, and circular hole post 31 slides in slidable adjustment groove 41, and the handwheel 6 is remote
Small boss is evenly arranged with around one end from circular hole post 31.It is recessed that the described one end of handwheel 6 away from circular hole post 31 is provided with cross
Groove（Do not shown in figure）.Thus user can be allowed to be actually needed according to oneself well to be adjusted, you can with hand adjustment, also may be used
So that the height of back frame 1 is adjusted by external force equipment more firm when.
In summary, after whole backrest installs, by adjusting handle 6, to control whether to secure back frame 1, by handwheel 6
After twisting outward, back frame 1 is adjusted up and down, and it adjusts height distance and limited by slidable adjustment groove 41.User's regulation is to suitably highly
After can tighten handwheel 6 fix back frame 1.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
Art personnel, without departing from the concept of the premise utility, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as in scope of protection of the utility model.
Claims (8)
1. a kind of height-adjustable backrest, it is characterised in that including back frame, fixed iron piece, back steel sheet, bonnet and handwheel, institute
State back frame and use arcuate structure, back frame is provided centrally with fixed structure, and the back frame is carried out with fixed iron piece by fixed structure
It is fixed；The circular hole post of the centrally disposed protrusion of fixed iron piece, sets mounting hole on the fixed iron piece, corresponding to fixed structure
Opening position is provided with screwed hole, and the fixed iron piece is fixed with fixed structure by bolt；The back steel sheet includes left steel
Plate and right steel plate, left plate and right steel plate all include " L " shape pitman, sliding panel and location-plate, one end of the pitman with
Plate weld is slided, the other end and positioning plate weld, the sliding panel set half elliptic groove among the side away from pitman,
The connecting hole being connected with external seat, left plate and right steel plate are provided with location-plate to be fixed by welding, are formed
Complete slidable adjustment groove；The bonnet, by snapping connection, covers the slidable adjustment groove of back steel sheet with fixed structure；It is described
The bonnet opening position corresponding with the circular hole post on fixed iron piece sets circular hole, circular hole and circular hole post of the handwheel through bonnet
It is attached.
A kind of 2. height-adjustable backrest according to claim 1, it is characterised in that：The back frame front sets soft
Pad, back frame prolong side to central concave.
A kind of 3. height-adjustable backrest according to claim 1, it is characterised in that：Set on the circular hole column wall
Put internal thread.
A kind of 4. height-adjustable backrest according to claim 3, it is characterised in that：The handwheel connecting portion is set
External screw thread, the internal thread of itself and circular hole post are adapted.
A kind of 5. height-adjustable backrest according to claim 1, it is characterised in that：The slip of the back steel sheet is adjusted
The circular hole post size saved in the size and fixed iron piece of groove is adapted, and circular hole post slides in slidable adjustment groove.
A kind of 6. height-adjustable backrest according to claim 1, it is characterised in that：Set on the fixed structure
There is the groove being adapted with pitman.
A kind of 7. height-adjustable backrest according to claim 1, it is characterised in that：The handwheel is away from circular hole post
One end around be evenly arranged with small boss.
A kind of 8. height-adjustable backrest according to claim 1, it is characterised in that：The handwheel is away from circular hole post
One end be provided with cross recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720090988.4U CN206994949U (en) | 2017-01-22 | 2017-01-22 | A kind of height-adjustable backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720090988.4U CN206994949U (en) | 2017-01-22 | 2017-01-22 | A kind of height-adjustable backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206994949U true CN206994949U (en) | 2018-02-13 |
Family
ID=61428578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720090988.4U Expired - Fee Related CN206994949U (en) | 2017-01-22 | 2017-01-22 | A kind of height-adjustable backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206994949U (en) |
-
2017
- 2017-01-22 CN CN201720090988.4U patent/CN206994949U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20210122 |