CN217695727U

CN217695727U - Office chair

Info

Publication number: CN217695727U
Application number: CN202220608488.6U
Authority: CN
Inventors: 何宏海
Original assignee: Beijing Chenhaigaoke Tech Co ltd
Current assignee: Beijing Chenhaigaoke Tech Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-11-01
Anticipated expiration: 2032-03-18

Abstract

An office chair is provided with a backrest, wherein mounting seats are convexly arranged on two sides of the backrest, and handrail components are arranged on the mounting seats; the armrest component is provided with an armrest plate, an outer tube, an inner tube, a first control mechanism and a first adjusting mechanism; the outer pipe is vertically and fixedly inserted on the mounting seat, and the inner pipe is arranged in the outer pipe in a matched sliding mode and at least partially extends out of the upper portion of the outer pipe; the two ends of the first adjusting mechanism are respectively provided with a fixed part and a movable part which axially rotates relative to the fixed part, the fixed part is fixedly arranged at the upper end of the inner pipe, and the movable part is fixed with one end of the hand rest plate; the first control mechanism is arranged in the hand backup plate, one end of the first control mechanism is provided with a first button protruding out of the hand backup plate, and the other end of the first control mechanism is connected with the movable part in a driving mode and used for driving the hand backup plate to rotate along the axial direction of the first adjusting mechanism. The adjustable design is implemented through the angle of placing and the height of adversary's backup plate, satisfies the user demand, and the reinforcing is used and is experienced the sense.

Description

Office chair

Technical Field

The utility model relates to an office chair, especially an office chair.

Background

Office chair carries out the chair that leans against that the desktop during operation sat under the position of sitting, to the office chair of relative high-end, all has the function of bearing to buttock, foot, back and hand basically, and the establishment of handrail can supply the hand to support, thereby keeps the comfort level that a comparatively comfortable gesture improved to take, but the rigidity of current office chair handrail, can't adjust, leads to the use limited, can not satisfy more demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an office chair, the arm-rest angle all can be adjusted with high.

The utility model adopts the following technical proposal:

an office chair is provided with a backrest, wherein mounting bases are convexly arranged on two sides of the backrest, and handrail components are arranged on the mounting bases;

the armrest assembly is provided with an armrest plate, an outer tube, an inner tube, a first control mechanism and a first adjusting mechanism;

the outer pipe is vertically and fixedly inserted on the mounting seat, and the inner pipe is arranged in the outer pipe in a matched sliding manner and at least partially extends out of the upper part of the outer pipe;

the two ends of the first adjusting mechanism are respectively provided with a fixed part and a movable part which axially rotates relative to the fixed part, the fixed part is fixedly arranged at the upper end of the inner pipe, and the movable part is fixed with one end of the hand rest plate;

the first control mechanism is arranged in the hand backup plate, one end of the first control mechanism is provided with a first button protruding out of the hand backup plate, and the other end of the first control mechanism is in driving connection with the inside of the movable part and used for driving the hand backup plate to rotate along the axial direction of the first adjusting mechanism.

As a best implementation of this embodiment, further, the first adjusting mechanism includes a positioning disk, a movable block, a positioning sleeve, and a limiting disk, which are coaxially disposed, the movable block is axially movably disposed in the positioning disk along the positioning disk, and the movable block is limited to move between a position where the movable block is abutted by the positioning disk and a large end of the positioning disk, the positioning sleeve extends into the small diameter end of the positioning disk and is sleeved on the movable block, the limiting disk is sleeved on the small diameter end of the positioning disk in a matching manner and is abutted against an end face of the positioning disk, and when the movable block is in the position where the movable block is abutted by the positioning disk, a portion of the movable block extending out from the large diameter end face of the positioning disk is inserted into the limiting disk.

As a preferred embodiment of this embodiment, further, the movable block has a central shaft, the central shaft has a shaft shoulder, the shaft shoulder protrudes outward to form three pins uniformly arranged along the circumference, the pins and the central shaft are on the same side of the shaft shoulder, and the positioning sleeve is sleeved outside the central shaft.

As the best implementation scheme of this embodiment, further, a positioning groove matched with the shape of the movable block is formed in the positioning disc, a through hole communicated with the positioning groove and through which the plug can penetrate is further formed in the positioning disc, the movable block is slidably disposed in the positioning groove, and when the movable block abuts against the bottom of the positioning groove, the plug extends out of the through hole.

As the best implementation scheme of this embodiment, further, a circle of limiting holes corresponding to the through holes are formed in the limiting disc, the limiting holes are uniformly distributed along the axial direction, and a gasket is arranged in one end of the limiting disc, which is far away from the limiting holes.

As a best implementation scheme of this embodiment, further, the outer ends of the positioning disc and the limiting disc are respectively covered with an inner end cover and an outer end cover.

As the best implementation scheme of this embodiment, further, the first control mechanism further includes a connecting wire and a steel wire drawn and arranged in the connecting wire, the steel wire is arranged in the arm rest plate, and two ends of the steel wire are respectively connected with the center of the shaft shoulder and the first button, and the first button is convexly arranged on the inner side of the lower end of the arm rest plate.

As a best implementation scheme of this embodiment, further, the armrest assembly further includes a second adjusting mechanism and a second control mechanism, the second adjusting mechanism includes an upper buckle block, a lower buckle block, the upper buckle block and the lower buckle block are respectively provided with an upper cover and a lower cover and are tightly clamped at the lower end inside the inner tube, a clamp tube is fixed between the upper buckle block and the lower buckle block, one end of the clamp tube is movably provided with a controllable tube pin extending out of the outer side of the inner tube, and a plurality of clamp holes which are matched and spliced with the tube pin at equal intervals are axially formed in the outer tube.

As a preferred embodiment of this embodiment, further, the second control mechanism is the same as the first control mechanism, and the second control mechanism further includes a second button, wherein the steel wire and the connecting wire enter the inner tube from the inside of the armrest plate, two ends of the steel wire are respectively connected to the second button and the tube pin, and the second button is convexly disposed on the outer side of the lower end of the armrest plate.

The utility model has the advantages that:

hand backup plate one end is connected on spacing dish, when pressing first button, thereby the steel wire pulls the locating piece toward being close to the activity of back direction from the connecting wire in the pull, makes the bolt break away from spacing hole, breaks off with the fingers and thumb the angle of placing that hand backup plate can adjust hand backup plate, loosens the back locating piece of pressing the button and resets, aligns spacing hole through the bolt and inserts the rigidity with hand backup plate.

Similarly, press the second button steel wire pulling pipe round pin and contract back and break away from the card hole, the fixed of contact inner tube and outer tube changes the extension length of inner tube through lifting or pushing down the hand backup plate, loosen the second button and pop out the pipe round pin to the chucking in the card hole of corresponding position, realize hand backup plate height position control, through placing angle and the highly adjustable design of carrying out of adversary backup plate, satisfy the user demand, the reinforcing is used and is experienced the sense.

Drawings

The following drawings are merely illustrative and explanatory of the present invention and do not limit the scope of the present invention.

Fig. 1 is a schematic view of an overall assembly structure of the multifunctional office chair.

Fig. 2 is an exploded schematic view of the first adjustment mechanism.

Fig. 3 is a schematic view of the connection assembly of the first adjustment mechanism and the first control mechanism.

Fig. 4 is a schematic structural diagram of the movable block.

Fig. 5 is a schematic structural view of the puck.

FIG. 6 is a schematic view of another view structure of the puck.

Fig. 7 is a schematic structural view of the limiting disc.

Fig. 8 is a schematic view of the connection assembly of the second adjustment mechanism and the second control mechanism.

Fig. 9 is a schematic view of the overall assembly structure of the armrest assembly.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, wherein the same reference numerals in the drawings denote the same or similar components.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

Fig. 1 shows an office chair, which has a backrest 1, wherein two sides of the backrest 1 are convexly provided with a armrest assembly 1A, and the armrest assembly is arranged on the armrest assembly 1A.

In detail, as shown in fig. 9, the armrest assembly has a backup plate 2, an outer tube 3, an inner tube 4, a first control mechanism, and a first adjustment mechanism.

Wherein, outer tube 3 is vertical solid inserting on 1A, and inner tube 4 matches and sets up in outer tube 3 and at least part stretches out outer tube 3 upper portion, and outer tube 3 and inner tube 4 are the oval pipe of well logical structure, and inner tube 4 can change the distance between relative in outer tube 3 activity.

For the above embodiment, two ends of the first adjusting mechanism are respectively a fixed portion and a movable portion axially rotating relative to the fixed portion, the fixed portion is fixedly installed at the upper end of the inner tube 4, and the movable portion is fixed with one end of the arm rest plate 2, so that the movable portion of the arm rest plate 2 axially rotates relative to the movable portion, the angle of the arm rest plate 2 is adjusted, and the using requirement is met.

Further, referring to fig. 2, the first adjusting mechanism includes a positioning plate 5, a movable block 6, a positioning sleeve 7 and a limiting plate 8, which are coaxially disposed.

In detail, as shown in fig. 4, the movable block 6 has a central shaft 60, the central shaft 60 has a shaft shoulder 61, the diameter of the shaft shoulder 61 is greater than that of the central shaft 60, the shaft shoulder 61 is formed by protruding three pins 62 uniformly arranged along the circumference, the pins 62 and the central shaft 60 are on the same side of the shaft shoulder 61, the positioning sleeve 7 is sleeved outside the central shaft 60, as shown in fig. 5 and 6, a positioning groove 50 matched with the movable block 6 in shape is formed in the positioning plate 5, a through hole 51 communicated with the positioning groove 50 and allowing the pins 62 to pass through is further formed in the positioning plate 5, the movable block 6 is slidably disposed in the positioning groove 50, that is, the movable block 6 is movably disposed in the positioning plate 5 along the axial direction of the positioning plate 5, and the movable block 6 is limited between a position abutted against the positioning plate 5 and a large end of the positioning plate 5 to move, when abutting against the bottom of the positioning groove 50, the pins 62 extend out of the through hole 51, and an inner end cover 9 is disposed at the outer end of the positioning plate 5 to prevent the movable block 6 from falling out of the positioning plate 5.

Further, as shown in fig. 2 and fig. 3, the positioning sleeve 7 extends into the small-diameter end of the positioning disk 5 and is sleeved on the movable block 6, the limiting disk 8 is sleeved on the small-diameter end of the positioning disk 5 in a matching manner and abuts against the end surface of the positioning disk 5, a circle of limiting holes 80 corresponding to the through holes 51 are formed in the limiting disk 8, the limiting holes 80 are evenly distributed along the axial direction, a gasket 10 is arranged in one end, away from the limiting holes 80, of the limiting disk 8, and an outer end cover 19 is arranged at the end of the limiting disk 8, so that when the movable block 6 moves to a position where the movable block is abutted by the positioning disk 5, the part, extending out from the large-diameter end surface of the positioning disk 5, of the bolt 62 on the movable block 6 is inserted into the limiting holes 80 of the limiting disk 8, the limiting disk 8 and the positioning disk 5 are fixed without rotational freedom, the bolt 62 is inserted into the limiting holes 80 at different positions so as to change the placement angle of the backup plate 2, and when the movable block 6 moves close to the backup plate, the bolt 62 gradually separates from the limiting holes 80, the positioning disk 5 and the limiting disk 8 and the backup plate can have rotational freedom at this time, so that the rotational angle of the backup plate 2 can be adjusted.

In addition, as shown in fig. 3, the first control mechanism is disposed in the armrest plate 2, and one end of the first control mechanism has a first button 11 protruding out of the armrest plate 2, and the other end of the first control mechanism is drivingly connected to the inside of the movable portion for driving the armrest plate 2 to rotate along the axial direction of the first adjustment mechanism. Detailed, first control mechanism still includes connecting wire 12 and pull and locates the steel wire 13 in connecting wire 12, steel wire 13 is in arm rest 2 and both ends connect shaft shoulder 61 center and first button 11 respectively, the inboard at 2 lower extremes of arm rest is established to first button 11 arch, pass through spring coupling between steel wire 13 and the first button 11, when pressing first button 11, thereby steel wire 13 pulls the activity of pulling movable block 6 toward being close to back 1 direction in the connecting wire 12, make bolt 62 break away from spacing hole 80, break off the angle of placing that arm rest 2 can be adjusted to arm rest 2, loose behind the button movable block 6 and reset, insert the rigidity with arm rest 2 through 62 spacing holes 80 of bolt alignment.

The utility model also provides another embodiment, as shown in fig. 8, the handrail assembly further comprises a second adjusting mechanism and a second control mechanism, the second control mechanism is the same as the first control mechanism, wherein, the second adjusting mechanism comprises an upper buckle block 14 and a lower buckle block 15, the upper buckle block 14 and the lower buckle block 15 are upper and lower covers and are clamped at the lower end inside the inner tube 4, a clamping tube 16 is fixed between the upper buckle block 14 and the lower buckle block 15, one end of the clamping tube 16 is movably provided with a controllable tube pin 17 extending out of the inner tube 4, a plurality of clamping holes 30 which are matched and spliced with the tube pin 17 at equal intervals are axially arranged on the outer tube 3, the tube pin 17 can be axially pulled and moved along the clamping tube 16, when the tube pin 17 is not stressed, the ejection tube pin 3 is correspondingly clamped into the clamping holes 30, at the moment, the positions of the inner tube 4 and the outer tube 3 are fixed, namely, the height position of the hand rest plate 2 is limited; in addition, the second control mechanism further comprises a second button 18, wherein the steel wire 13 and the connecting wire 12 enter the inner tube 4 from the inside of the backup plate 2, two ends of the steel wire 13 are respectively connected with the second button 18 and the tube pin 17, the second button 18 is arranged on the outer side of the lower end of the backup plate 2 in a protruding mode, the control principle of the second button 18 is the same as that of the first button 11, the steel wire 13 is pressed down to pull the tube pin 17 to retract and separate from the clamping hole 30, the inner tube 4 and the outer tube 3 are contacted to be fixed, the extension length of the inner tube 4 is changed by lifting or pressing the backup plate 2, the second button 18 is loosened to eject the tube pin 17 to be clamped in the clamping hole 30 in the corresponding position, height position adjustment of the backup plate 2 is achieved, adjustable design is achieved through the placing angle and height of the backup plate 2, use requirements are met, and use experience is enhanced.

It should be understood that although the description has been described in terms of various embodiments, it is not intended that each embodiment includes only a single embodiment, but rather that the description is for clarity purposes only, and it is to be understood that those skilled in the art will recognize that the embodiments described in the various embodiments can be combined as suitable to form other embodiments as would be understood by those skilled in the art.

The above list of details is only for the practical examples of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of the features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.

Claims

1. The utility model provides an office chair, its has a back, the protruding mount pad of establishing in back both sides, its characterized in that:

the mounting seat is provided with a handrail component;

2. An office chair as claimed in claim 1, wherein: the first adjusting mechanism comprises a positioning disc, a movable block, a positioning sleeve and a limiting disc which are coaxially arranged, the movable block is axially movably arranged in the positioning disc along the positioning disc, the movable block is limited to move between a position where the movable block is abutted by the positioning disc and a large end of the positioning disc, the positioning sleeve extends into the small-diameter end of the positioning disc and is sleeved on the movable block, the limiting disc is matched with the positioning disc and is sleeved at the small-diameter outer end of the positioning disc and abutted against the end face of the positioning disc, and when the movable block is positioned at the position where the movable block is abutted by the positioning disc, the part of the movable block, which extends out of the large-diameter end face of the positioning disc, is inserted into the limiting disc.

3. An office chair as claimed in claim 2, wherein: the movable block is provided with a center shaft, a shaft shoulder is arranged on the center shaft, three bolts which are uniformly distributed along the circumference are formed by protruding the shaft shoulder, the bolts and the center shaft are arranged on the same side of the shaft shoulder, and the positioning sleeve is sleeved outside the center shaft.

4. An office chair as claimed in claim 3, wherein: a positioning groove matched with the movable block in shape is formed in the positioning disc, a through hole which is communicated with the positioning groove and through which the bolt can penetrate is further formed in the positioning disc, the movable block is arranged in the positioning groove in a sliding mode, and the bolt extends out of the through hole when the movable block abuts against the bottom of the positioning groove.

5. An office chair as claimed in claim 4, wherein: a circle of limiting holes corresponding to the through holes are formed in the limiting disc, the limiting holes are evenly distributed along the axial direction, and a gasket is arranged at one end, away from the limiting holes, of the limiting disc.

6. An office chair as claimed in claim 2, wherein: the outer ends of the positioning disc and the limiting disc are respectively provided with an inner end cover and an outer end cover.

7. An office chair as claimed in claim 3, wherein: first control mechanism still includes connecting wire and pull and locates the steel wire in the connecting wire, and the steel wire is in the arm-rest board and both ends are connected shaft shoulder center and first button respectively, and the protruding inboard of establishing at the arm-rest board lower extreme of first button.

8. An office chair as claimed in any of claims 1 to 7, wherein: the handrail component further comprises a second adjusting mechanism and a second control mechanism, the second adjusting mechanism comprises an upper buckling block, a lower buckling block, the upper buckling block and the lower buckling block are arranged at the lower end of the inner pipe, the upper buckling block and the lower buckling block are covered and clamped, a clamping pipe is fixed between the upper buckling block and the lower buckling block, one end of the clamping pipe is movably provided with a controllable pipe pin extending out of the outer side of the inner pipe, and a plurality of clamping holes which are in matched splicing with the pipe pin at equal intervals are formed in the outer pipe along the axial direction.

9. An office chair as claimed in claim 8, wherein: the second control mechanism is the same as the first control mechanism, the second control mechanism further comprises a second button, the steel wire and the connecting wire enter the inner pipe from the inside of the backup plate, the two ends of the steel wire are respectively connected with the second button and the pipe pin, and the second button is arranged on the outer side of the lower end of the backup plate in a protruding mode.