CN209135882U - Chair armrest - Google Patents
Chair armrest Download PDFInfo
- Publication number
- CN209135882U CN209135882U CN201821584729.8U CN201821584729U CN209135882U CN 209135882 U CN209135882 U CN 209135882U CN 201821584729 U CN201821584729 U CN 201821584729U CN 209135882 U CN209135882 U CN 209135882U
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- CN
- China
- Prior art keywords
- pawl
- column
- inner cylinder
- chair armrest
- tubular column
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Abstract
This swivel chair includes ratchet wheel component and the lifting device that is connected on ratchet wheel component, fixed seat frame is connected on lifting device, handrail is connected in the two sides of fixed seat frame, backrest module is connected on rear side of fixed seat frame, the backrest module includes rectangular backrest frame, the back side top side of rectangular backrest frame is connected with support frame by triangle part, the support frame includes fixed seat frame and the fixed column that is connected on rear side of fixed seat frame, it further include back rest supports column, matching hole is equipped in the lower end of back rest supports column and fixed column inserts in the matching hole, several adjustment holes being arranged along matching hole axially spaced-apart are equipped on the hole wall of matching hole, it inserts in one end in matching hole in fixed column and is equipped with one end of U-shaped resilient locking element and U-shaped resilient locking element and insert in any one adjustment hole, one end in matching hole is inserted in fixed column It is equipped between back rest supports column and adjusts guiding mechanism, the upper end of back rest supports column is connect by flexible connection mechanism with triangle part.
Description
Technical field
The utility model belongs to chair technology field more particularly to a kind of chair armrest.
Background technique
Chair is the common daily necessity of one of life.
The structure of chair includes bracket to be installed equipped with backrest on bracket by back with the cushion being fixed on bracket
Head supports back cushion, and handrail is installed on bracket.
Handrail is two and is symmetrical set.
Existing handrail has fixed two kinds movable with lifting.
It generally uses the mutual cooperation mode of bolt and several screw holes to movable handrail, although this mode can be real
Existing handrail lift adjustment, still, this regulative mode is not only cumbersome, but also service life is shorter, because often assembling-disassembling bolt is then
Lead to screw thread sliding teeth.
Utility model content
The purpose of this utility model is a kind of to adjust that more convenient and the service life is longer turns in view of the above-mentioned problems, providing
Armrest of seat.
In order to achieve the above objectives, the utility model uses following technical proposal: this chair armrest includes being fixed on fixation
Tubular column in seat frame, and the handrail fixed column in the tubular column is inserted in, it is equipped with balustrade panel in the upper end of handrail fixed column,
The tubular column is tilted towards preceding setting, is equipped on inclined surface on front side of the inner wall of tubular column along tubular axis of a cylinder to the spine of setting
Tooth by stud connection has pawl and pawl and ratchet engagement in one end that handrail fixed column inserts in tubular column.
Using the structure for being obliquely installed collaboration pawl and ratchet, pawl voluntarily inserted in the case where self weight on ratchet and with
Ratchet engagement, realizes the stability of structure and the convenience of lift adjustment and controllability, and design more rationally and meets
The development trend of current social technology.
It is not necessarily to disassembly to above-mentioned structure, can further prolong the service life.
In above-mentioned chair armrest, inner cylinder is equipped in the tubular column, inner cylinder inner wall is arranged in the ratchet
On the inclined surface of front side, handrail fixed column inserts in inner cylinder and is equipped with oriented structure between handrail fixed column and inner cylinder.
The design of inner cylinder, can be in order to assembling.
The oriented structure of design can be further improved the stability and ride comfort of lift adjustment.
In above-mentioned chair armrest, the handrail fixed column lower end is equipped with pawl mounting groove, and the both ends of hinged shaft are worn
On the cell wall of pawl mounting groove, the pawl is located in pawl mounting groove, is equipped with and uses between pawl and pawl mounting groove
In the swing position limiting structure for preventing the pawl from excessively swinging backward after pawl is detached from ratchet backward.
The mounting groove of design can form maximally utilizing for protection and space.
The swing position limiting structure of design, may insure using reliability.
In above-mentioned chair armrest, the swing position limiting structure includes the position limit arm that one end is connect with pawl, is being limited
Position arm is equipped with limit pin far from one end of pawl, and arc groove is equipped on the cell wall of pawl mounting groove, limits the interior of pin
End inserts in the arc groove.
That is, limiting pin, it can be moved along arc groove, two for playing the role of guiding and limit.
In above-mentioned chair armrest, the oriented structure includes the guide groove being arranged on rear side of inner cylinder, is being helped
The rear side of hand fixed column is equipped in the guide groove described in being stuck in and the guiding convex ribs with guide groove clearance fit.
That is, the cell wall of guiding convex ribs and guide groove is slidably connected.
In above-mentioned chair armrest, the guide groove upper end extends to the upper end of inner cylinder and is in communication with the outside, guiding
The lower end of slot extends to the lower end of inner cylinder.
Its manufacture easy to process of the structure and subsequent maintenance dismounting.
In above-mentioned chair armrest, the tubular column is equipped with the connectivity slot being connected to the guide groove.
Its manufacture easy to process of the structure and subsequent maintenance dismounting.
In above-mentioned chair armrest, the upper end of the connectivity slot extends to the upper end of tubular column and is in communication with the outside, even
The lower end of through slot extends to the lower end of tubular column.
In above-mentioned chair armrest, the inner cylinder is fastened by two pieces of C-shaped halfbodies of transversal cross-section and is formed.The structure
The ratchet of its inside easy to process and subsequent assembling.
In above-mentioned chair armrest, the inner cylinder lower end has closure, in the connection of fixed seat frame and tubular column
Place is equipped with the locking bolt that upper end is threadedly coupled with closure.
The structure its packaging efficiency and structural strength can be improved.
In above-mentioned chair armrest, oriented structure further includes the interior protuberance being arranged on inner cylinder inner wall, interior protuberance
Back side edge and inner cylinder inner wall back side edge there are gap, be equipped in the outer wall of handrail fixed column and be caught in for the interior protuberance
It is oriented to notch.
The structure its can be further improved mobile regularity and stability.
In above-mentioned chair armrest, the upper end of handrail fixed column is equipped with blind hole body.
It is convenient for assembling to the structure, meanwhile, further reduce whole weight.
In above-mentioned chair armrest, balustrade panel includes installing the closed bottom plate of blind hole body orifice on bottom plate
The handrail upper housing for having handrail lower case and being fastened in handrail lower case.
In above-mentioned chair armrest, it is equipped with concaveconvex structure one in the two sides inner wall of handrail lower case, in handrail upper housing
Two sides inner wall be equipped with the concaveconvex structure two that matches with the concaveconvex structure one.
Packaging efficiency and structural strength can be improved in concaveconvex structure.
In above-mentioned chair armrest, the concaveconvex structure one includes several spaced protrusions, the bumps
Structure two includes several spaced recesses, and the protrusion matches with recess.
In above-mentioned chair armrest, the both ends of handrail lower case are equipped with the company that upper end is threadedly coupled with handrail upper housing
Connecting bolt.
Its connection easy to disassemble of the structure.
Compared with prior art, it is the advantages of this chair armrest:
1, using the structure for being obliquely installed collaboration pawl and ratchet, pawl voluntarily inserts on ratchet simultaneously in the case where self weight
With ratchet engagement, the stability of structure and the convenience of lift adjustment and controllability are realized, design more rationally and accords with
Close the development trend of current social technology.
2, structure is simple and manufacture easy to process.
3, structure is more stable and reliable.
Detailed description of the invention
Fig. 1 is revolving chair structure schematic diagram provided by the utility model.
Fig. 2 is armrest schematic diagram provided by the utility model.
Fig. 3 is handrail configuration schematic diagram provided by the utility model.
Fig. 4 is concave-convex fit structure schematic diagram provided by the utility model.
Fig. 5 is inner tube structure schematic diagram provided by the utility model.
In figure, fixed seat frame a1, tubular column c1, front side inclined surface c11, ratchet c12, connectivity slot c13, handrail fixed column
Under c2, pawl mounting groove c21, arc groove c22, guiding convex ribs c23, guiding notch c24, balustrade panel c3, bottom plate c31, handrail
Shell c32, handrail upper housing c33, concaveconvex structure 1, concaveconvex structure 2 35, hinged shaft c4, pawl c5, position limit arm c51, limit
Pin c52, inner cylinder c6, guide groove c61, closure c62, locking bolt c63, interior protuberance c64, inner wall back side edge c65.
Specific embodiment
It is the specific embodiment of utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figs. 1-5, this chair armrest includes the tubular column c1 being fixed on fixed seat frame a1, and inserts in the cylinder
Handrail fixed column c2 in shape column c1 is equipped with balustrade panel c3 in the upper end of handrail fixed column c2, further, in handrail fixed column
The upper end of c2 is equipped with blind hole body.
The balustrade panel c3 of the present embodiment includes being equipped with the closed bottom plate c31 of the blind hole body orifice on bottom plate c31
The handrail lower case c32 and handrail upper housing c33 being fastened on handrail lower case c32.
It is equipped with concaveconvex structure 1 in the two sides inner wall of handrail lower case c32, is set in the two sides inner wall of handrail upper housing c33
There is the concaveconvex structure 2 35 to match with the concaveconvex structure one.Specifically, the concaveconvex structure one of the present embodiment includes several
Spaced protrusion, the concaveconvex structure two include several spaced recesses, and the protrusion matches with recess.
Secondly, being equipped with the connection spiral shell that upper end is threadedly coupled with handrail upper housing c33 at the both ends of handrail lower case c32
Bolt.
The tubular column c1 of prioritization scheme, the present embodiment is tilted towards preceding setting, the inclined surface c11 on front side of the inner wall of tubular column c1
It is equipped with the ratchet c12 being axially arranged along tubular column c1, passes through hinge in one end that handrail fixed column c2 is inserted in tubular column c1
Axis c4 is connected with pawl c5 and pawl c5 is engaged with ratchet c12.
Pawl c5 is engaged with ratchet c12, is formed and is fixed.
Secondly, being equipped with inner cylinder c6 in tubular column c1, the front side inclined surface of inner cylinder c6 inner wall is arranged in the ratchet c12
On c11, handrail fixed column c2 is inserted in inner cylinder c6 and is equipped with oriented structure between handrail fixed column c2 and inner cylinder c6.
In addition, being equipped with pawl mounting groove c21 in the handrail lower end fixed column c2, the both ends of hinged shaft c4 are threaded through pawl mounting groove
On the cell wall of c21, the pawl c5 is located in pawl mounting groove c21, is equipped with and uses between pawl c5 and pawl mounting groove c21
In the swing position limiting structure for preventing the pawl c5 from excessively swinging backward after pawl c5 is detached from ratchet c12 backward.Specifically, the pendulum
Dynamic position limiting structure includes the position limit arm c51 that one end is connect with pawl c5, is equipped with limit far from one end of pawl c5 in position limit arm c51
Pin c52, is equipped with arc groove c22 on the cell wall of pawl mounting groove c21, and the inner end of limit pin c52 inserts in the arc
In connected in star c22.
Specifically, the oriented structure of the present embodiment includes the guide groove c61 being arranged on rear side of inner cylinder c6, solid in handrail
The rear side of fixed column c2 is equipped in the guide groove c61 described in being stuck in and the guiding convex ribs c23 with guide groove c61 clearance fit.Secondly,
The oriented structure further includes the interior protuberance c64 being arranged on inner cylinder inner wall, the back side edge of interior protuberance c64 and the inner wall of inner cylinder
There are gaps by back side edge c65, are equipped with the guiding notch c24 being caught in for the interior protuberance c64 in the outer wall of handrail fixed column c2.
In addition, the upper end guide groove c61 extends to the upper end of inner cylinder c6 and is in communication with the outside, the lower end of guide groove c61 extends
To the lower end of inner cylinder c6.
The tubular column c1 is equipped with the connectivity slot c13 being connected to the guide groove c61.
The upper end of connectivity slot c13 extends to the upper end of tubular column c1 and is in communication with the outside, and the lower end of connectivity slot c13 extends to
The lower end of tubular column c1.
The inner cylinder c6 is fastened by two pieces of C-shaped halfbodies of transversal cross-section and is formed.
The lower end inner cylinder c6 has closure c62, is equipped in the junction of fixed seat frame a1 and tubular column c1
Hold the locking bolt c63 being threadedly coupled with closure c62.
In the present embodiment,
It gets a grip on the rail plate under external force or handrail fixed column c2 is twitched upwards, pawl c5 at this time is detached from ratchet
C12, after rising to setting position, pawl c5 at this time is engaged under self gravitation effect with ratchet c12, that is, completes to rise
It adjusts.Conversely, then completing the adjusting of decline.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. chair armrest including the tubular column (c1) being fixed on fixed seat frame (a1), and inserts in the tubular column (c1)
Handrail fixed column (c2), the upper end of handrail fixed column (c2) be equipped with balustrade panel (c3), which is characterized in that the tubular column
(c1) it is tilted towards preceding setting, is equipped on the inner wall front side inclined surface (c11) of tubular column (c1) and is axially set along tubular column (c1)
The ratchet (c12) set is connected with pawl by hinged shaft (c4) in one end that handrail fixed column (c2) inserts in tubular column (c1)
(c5) and pawl (c5) is engaged with ratchet (c12).
2. chair armrest according to claim 1, which is characterized in that it is equipped with inner cylinder (c6) in the tubular column (c1),
The ratchet (c12) is arranged on the front side inclined surface (c11) of inner cylinder (c6) inner wall, and handrail fixed column (c2) inserts in inner cylinder
(c6) oriented structure is equipped in and between handrail fixed column (c2) and inner cylinder (c6).
3. chair armrest according to claim 2, which is characterized in that the handrail fixed column lower end (c2) is equipped with pawl
The both ends of mounting groove (c21), hinged shaft (c4) are threaded through on the cell wall of pawl mounting groove (c21), and the pawl (c5) is located at spine
In pawl mounting groove (c21), it is equipped between pawl (c5) and pawl mounting groove (c21) for when pawl (c5) is detached from ratchet backward
(c12) the swing position limiting structure for preventing the pawl (c5) from excessively swinging backward after.
4. chair armrest according to claim 3, which is characterized in that the swing position limiting structure includes one end and pawl
(c5) position limit arm (c51) connected is equipped with limit pin (c52) far from the one end of pawl (c5) at position limit arm (c51), in pawl
The cell wall of mounting groove (c21) is equipped with arc groove (c22), and the inner end of limit pin (c52) inserts in the arc groove
(c22) in.
5. chair armrest according to claim 2, which is characterized in that the oriented structure includes being arranged in inner cylinder
(c6) guide groove (c61) on rear side of, the rear side of handrail fixed column (c2) be equipped be stuck in the guide groove (c61) and with lead
To the guiding convex ribs (c23) of slot (c61) clearance fit.
6. chair armrest according to claim 5, which is characterized in that described upper end guide groove (c61) extends to inner cylinder
(c6) it upper end and is in communication with the outside, the lower end of guide groove (c61) extends to the lower end of inner cylinder (c6).
7. chair armrest according to claim 5, which is characterized in that the tubular column (c1) is equipped with and leads with described
The connectivity slot (c13) being connected to slot (c61).
8. chair armrest according to claim 7, which is characterized in that the upper end of the connectivity slot (c13) extends to tubular
The upper end of column (c1) is simultaneously in communication with the outside, and the lower end of connectivity slot (c13) extends to the lower end of tubular column (c1).
9. chair armrest according to claim 2, which is characterized in that the inner cylinder (c6) is in C by two pieces of transversal cross-sections
The halfbody of shape fastens to be formed.
10. chair armrest according to claim 2, which is characterized in that the inner cylinder lower end (c6) has closure
(c62), the locking bolt that upper end is threadedly coupled with closure (c62) is equipped with the junction of tubular column (c1) at fixed seat frame (a1)
(c63)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821584729.8U CN209135882U (en) | 2018-09-27 | 2018-09-27 | Chair armrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821584729.8U CN209135882U (en) | 2018-09-27 | 2018-09-27 | Chair armrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209135882U true CN209135882U (en) | 2019-07-23 |
Family
ID=67268382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821584729.8U Active CN209135882U (en) | 2018-09-27 | 2018-09-27 | Chair armrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209135882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109043931A (en) * | 2018-09-27 | 2018-12-21 | 浙江粤强家具科技有限公司 | Chair armrest |
-
2018
- 2018-09-27 CN CN201821584729.8U patent/CN209135882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109043931A (en) * | 2018-09-27 | 2018-12-21 | 浙江粤强家具科技有限公司 | Chair armrest |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |