CN210383321U

CN210383321U - Office chair convenient to adjust

Info

Publication number: CN210383321U
Application number: CN201921082484.3U
Authority: CN
Inventors: 李春田; 李朝友
Original assignee: Jiangsu Aohua Furniture Co Ltd
Current assignee: Jiangsu Aohua Furniture Co Ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-04-24
Anticipated expiration: 2029-07-11

Abstract

The utility model provides an office chair convenient to adjust relates to office equipment technical field, including the office chair body, be provided with the back on the rear end of office chair body top surface, the back includes the back framework, the back framework is the rectangle frame structure, the bottom surface of back framework sets up perpendicularly on the lateral wall of office chair body rear end, the activity is provided with main cushion in the back framework, both ends still all are provided with vice cushion about the back framework, main cushion includes arc cushion and flat cushion, arc cushion and flat cushion all are located the back framework, flat cushion is fixed to be set up on the arc opening of arc cushion, the top of arc cushion is provided with the fixing bolt seat, all be provided with the fixing bolt hole on the opposition both sides wall of fixing bolt seat, still all be provided with the baffle strip on the both sides wall of arc cushion, and the length of baffle strip is the same with arc cushion arc open-ended length. The utility model has the advantages of can switch the back as required, and the handrail device can overturn and accomodate.

Description

Office chair convenient to adjust

Technical Field

The utility model relates to an office equipment technical field, concretely relates to office chair convenient to adjust.

Background

The back chair that the desktop during operation was sat is carried out to the limited definition of office chair to the people under the position of sitting, generalized definition is all chairs that are used for the office, including the employee's chair, the meeting chair, visitor's chair, training chair etc, the personnel of handling official business at the office, long-time sitting can lead to the waist to be uncomfortable on office chair, but current office chair can not change the back, the back board is mostly integrative simultaneously, make when the temperature is higher or lower, back and back board contact can be very hot or very cold, it is very inconvenient to use, and the handrail can not overturn, be unfavorable for accomodating office chair under the desktop.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an office chair of being convenient for adjust that has can switch the back as required according to the use, and the armrest apparatus can overturn and accomodate.

In order to solve the technical problem, the utility model provides an office chair convenient to adjust, which comprises an office chair body, wherein the back is arranged at the rear end of the top surface of the office chair body, the back comprises a back frame body, the back frame body is of a rectangular frame structure, the bottom surface of the back frame body is vertically arranged on the side wall at the rear end of the office chair body, a main back cushion is movably arranged in the back frame body, the left end and the right end of the back frame body are respectively provided with an auxiliary back cushion, the main back cushion comprises an arc-shaped back cushion and a flat back cushion, the arc-shaped back cushion and the flat back cushion are both positioned in the back frame body, the flat back cushion is fixedly arranged on the arc-shaped opening of the arc-shaped back cushion, the top of the arc-shaped back cushion is provided with a fixed bolt seat, the two opposite side walls of the fixed bolt seat are respectively provided with a fixed bolt, the bottom of the arc-shaped back cushion is rotatably hinged with a cross-shaped sliding block, the left opposite inner wall and the right opposite inner wall of the back cushion frame body are respectively provided with a limiting strip, the distance between the limiting strips is smaller than the distance between the baffle plates, the bottom side wall of the back cushion frame body is provided with an open slot, the top surface of the open slot is in an open shape, the cross-shaped sliding block is positioned in the open slot, the side wall of the open slot is also movably provided with a guide rod, the width of the open slot is larger than that of the guide rod, the top surface of the guide rod and the top surface of the open slot are on the same plane, the guide rod is in a rectangular rod-shaped structure, the bottom of one end of the guide rod is hinged on the side wall of the open slot, the top of the guide rod is also provided with a cross-shaped groove, the cross-, the bolt seat inslot is provided with the internal thread hole, and the fixing bolt seat is located the bolt seat inslot, fixing bolt corresponds with the position homogeneous phase of internal thread hole and fixing bolt hole, and fixing bolt passes fixing bolt hole to internal thread downthehole, vice cushion includes the arc pad body, the arc opening of arc pad body is towards the back framework, the arc pad body is cavity column structure, the arc pad body articulates both ends about the back framework through the pivot, the left and right sides of office chair body top surface still all is provided with armrest apparatus.

Preferably, the armrest device comprises an armrest body and a connecting rod, one end of the connecting rod is fixedly connected with the armrest body, the other end of the connecting rod is provided with a rotating shaft, the rotating shaft is of a cylindrical structure, a left rotating shaft seat and a right rotating shaft seat are respectively and fixedly arranged on the office chair body at two ends of the rotating shaft, the left rotating shaft seat and the right rotating shaft seat are arranged in parallel at intervals, the left rotating shaft seat and the right rotating shaft seat are both of circular structures, two ends of the rotating shaft are respectively and rotatably arranged on the left rotating shaft seat and the right rotating shaft seat, one end of the rotating shaft and one end of the right rotating shaft seat are both of inner hexagonal groove-shaped structures with the same size, the orientation of one end of the rotating shaft and one end of the right rotating shaft seat are the same, a hexagonal rod is movably arranged in one end of the right rotating shaft seat, the hexagonal rod penetrates through one end, the armrest body can be rotated to the top surface of the office chair body by taking the rotating shaft as the axis line for people to hold or the arms can be conveniently put up, thereby being beneficial to improving the comfort; also can rotate the bottom to the office chair body with the handrail body, when pushing away this office chair of being convenient for to adjust and place below the desktop for the handrail body can not interfere with between the desktop.

Preferably, the one end top surface of handrail body is arc column structure, and the other end of handrail body is provided with the rectangle pad through the connecting rod activity, and the one end of connecting rod is fixed to be set up on the bottom surface of rectangle pad, and the other end of connecting rod passes the other end of handrail body, and is interference fit between the other end of connecting rod and the handrail body, and the arc structure is favorable to improving the travelling comfort when people's arm put up a shed, and the rectangle pad can conveniently be installed or dismantle according to people's user demand.

Preferably, the arc open-ended length of arc pad body is the same with arc cushion arc open-ended length, and arc pad body and arc cushion are on same plane, are convenient for through pivot upset arc pad body for the arc pad body is located the both sides of arc cushion respectively, and forms bigger area between the arc cushion, is favorable to improving the travelling comfort that people's back leaned on the arc cushion.

Preferably, the arc cushion is the same with the width of flat cushion, and arc cushion arc open-ended length is the same with the length of flat cushion, is convenient for overturn the arc through the pivot and fills up the body for the arc fills up the body and is located the both sides of arc cushion respectively, and forms bigger area between the arc cushion, is favorable to improving the travelling comfort that people's back leaned on the arc cushion.

Preferably, the distance from the baffle strip to the arc-shaped top of the arc-shaped back cushion, the distance from the baffle strip to the flat back cushion and the distance from the limiting strip to the side wall of the backrest frame at the end of the opening groove are the same, so that the arc-shaped back cushion and the flat back cushion can be selected and used as required.

The utility model has the advantages that:

(1) the main back cushion comprises an arc back cushion and a flat back cushion, and the main back cushion can be pulled to the guide rod to rotate 180 degrees for switching according to needs, so that the main back cushion can meet the requirements of different people;

(2) the hexagonal rod can be taken down as required and then rotated by taking the rotating shaft as the axis, and the armrest body can be rotated to the top surface of the office chair body for being held by the hands of people or being convenient for the arms to put up a shed, thereby being beneficial to improving the comfort; the armrest body can also be rotated to the bottom of the office chair body, so that the armrest body cannot interfere with the desktop when the office chair convenient to adjust is pushed to the lower side of the desktop for placing;

(3) rotate the both sides cooperation of arc cushion body to the arc cushion and use, and form bigger area between the arc cushion, be favorable to improving the travelling comfort that people's back leaned on the arc cushion.

Drawings

The accompanying drawings are included to provide a preferred understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of an adjustable office chair according to the present invention;

FIG. 2 is a schematic view of the easy-to-adjust position of the office chair when the guide bar is released;

FIG. 3 is a schematic view of a main backrest structure of an office chair of the present invention, which is easy to adjust;

FIG. 4 is a schematic view of the position of the guide bar when the backrest is fixed in the office chair of the present invention;

FIG. 5 is a schematic diagram of a position-limiting bar of an office chair of the present invention;

FIG. 6 is an exploded view of the armrest apparatus of an office chair with easy adjustment according to the present invention;

FIG. 7 is a schematic structural view of the easy-to-adjust office chair of the present invention when the turnover arc cushion body is engaged with the arc cushion;

the reference signs are: 1. an office chair body; 2. a backrest; 21. a backrest frame; 22. a bolt seat slot; 23. an internally threaded bore; 24. a limiting strip; 25. an open slot; 3. a main back cushion; 31. an arc-shaped back cushion; 32. flattening the back cushion; 33. fixing a bolt seat; 34. fixing bolt holes; 35. a baffle plate strip; 36. a cross-shaped sliding block; 4. an auxiliary back cushion; 41. an arc-shaped pad body; 42. a rotating shaft; 5. a handrail device; 6. a guide bar; 61. a cross-shaped slot; 62. fixing the bolt; 63. a spring; 7. a handrail body; 71. a connecting rod; 72. a rectangular pad; 8. a connecting rod; 81. a rotating shaft; 82. a left base of the rotating shaft; 83 a right base of the rotating shaft; 84. a hexagonal rod.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-7, an adjustable office chair according to the present embodiment includes an office chair body 1, a backrest 2 is disposed at a rear end of a top surface of the office chair body 1, the backrest 2 includes a backrest frame 21, the backrest frame 21 is a rectangular frame structure, a bottom surface of the backrest frame 21 is vertically disposed on a side wall of the rear end of the office chair body 1, a main cushion 3 is movably disposed in the backrest frame 21, auxiliary cushions 4 are disposed at left and right ends of the backrest frame 21, the main cushion 3 includes an arc cushion 31 and a flat cushion 32, the arc cushion 31 and the flat cushion 32 are both disposed in the backrest frame 21, the flat cushion 32 is fixedly disposed on an arc opening of the arc cushion 31, a fixing bolt seat 33 is disposed at a top of the arc cushion 31, fixing bolt holes 34 are disposed on two opposite side walls of the fixing bolt seat 33, two side walls 35 are disposed on the arc cushion 31, the length of the baffle plate strip 35 is the same as that of the arc-shaped opening of the arc-shaped back cushion 31, the bottom of the arc-shaped back cushion 31 is rotatably hinged with a cross-shaped sliding block 36, the left and right opposite inner walls of the backrest frame body 21 are respectively provided with a limiting strip 24, the distance between the limiting strips 24 is smaller than that between the baffle plate strips 35, the bottom side wall of the backrest frame body 21 is provided with an open slot 25, the top surface of the open slot 25 is in an open shape, the cross-shaped sliding block 36 is positioned in the open slot 25, the side wall of the open slot 25 is also movably provided with a guide rod 6, the width of the open slot 25 is larger than that of the guide rod 6, the top surface of the guide rod 6 and the top surface of the open slot 25 are on the same plane, the guide rod 6 is in a rectangular rod-shaped structure, the bottom of one end of the guide rod 6 is hinged on the side wall, the guide arm 6 other end still is provided with fixing bolt 62, fixing bolt 62's outside still overlaps and is equipped with spring 63, the top of back framework 21 lateral wall still is provided with bolt seat groove 22, be provided with internal thread hole 23 in the bolt seat groove 22, and fixing bolt seat 33 is located bolt seat groove 22, fixing bolt 62 corresponds with the position homogeneous phase of internal thread hole 23 and fixing bolt hole 34, and fixing bolt 62 passes fixing bolt hole 34 to internal thread hole 23 in, vice cushion 4 includes arc pad body 41, the arc opening of arc pad body 41 is towards back framework 21, arc pad body 41 is the hollow column structure, arc pad body 41 articulates both ends about back framework 21 through pivot 42, the left and right sides of office chair body 1 top surface still all is provided with armrest apparatus 5.

The armrest device 5 comprises an armrest body 7 and a connecting rod 8, one end of the connecting rod 8 is fixedly connected with the armrest body 7, the other end of the connecting rod 8 is provided with a rotating shaft 81, the rotating shaft 81 is of a cylindrical structure, a left rotating shaft seat 82 and a right rotating shaft seat 83 are respectively fixedly arranged on the office chair body 1 at two ends of the rotating shaft 81, the left rotating shaft seat 82 and the right rotating shaft seat 83 are arranged in parallel at intervals, the left rotating shaft seat 82 and the right rotating shaft seat 83 are both of circular structures, two ends of the rotating shaft 81 are respectively rotatably arranged on the left rotating shaft seat 82 and the right rotating shaft seat 83, one end of the rotating shaft 81 and one end of the right rotating shaft seat 83 are both of inner hexagonal groove structures with the same size, one end of the rotating shaft 81 and one end of the right rotating shaft seat 83 face the same direction, a hexagonal rod 84 is movably arranged in one end of the right rotating shaft seat 83, the hexagonal rod, the hexagonal rod 84 can be taken down as required and then rotated by taking the rotating shaft 81 as the axis, and the armrest body 7 can be rotated to the top surface of the office chair body 1 for being held by the hands of people or being convenient for building up the ceiling by the arms, which is beneficial to improving the comfort; the armrest body 7 can also be rotated to the bottom of the office chair body 1, when the office chair convenient to adjust is pushed below a desktop for placing, the armrest body 7 cannot interfere with the desktop, the top surface of one end of the armrest body 7 is of an arc-shaped structure, the other end of the armrest body 7 is movably provided with a rectangular pad 72 through a connecting rod 71, one end of the connecting rod 71 is fixedly arranged on the bottom surface of the rectangular pad 72, the other end of the connecting rod 71 penetrates through the other end of the armrest body 7, the other end of the connecting rod 71 is in interference fit with the armrest body 7, the arc-shaped structure is favorable for improving the comfort of people when the arms are put on the greenhouse, the rectangular pad 72 can be conveniently installed or detached according to the use needs of people, the length of the arc-shaped opening of the arc-shaped pad body 41 is the same as that of the arc-shaped opening of the arc-shaped back cushion 31, and, the arc-shaped cushion body 41 is convenient to turn over through the rotating shaft 42, so that the arc-shaped cushion body 41 is respectively positioned at the two sides of the arc-shaped back cushion 31, a larger area is formed between the arc-shaped back cushion 31 and the arc-shaped back cushion 31, which is beneficial to improving the comfort of people leaning on the arc-shaped back cushion 31 from the back, the width of the arc-shaped back cushion 31 is the same as that of the flat back cushion 32, the length of the arc-shaped opening of the arc-shaped back cushion 31 is the same as that of the flat back cushion 32, the arc-shaped cushion body 41 is convenient to overturn through the rotating shaft 42, so that the arc-shaped cushion body 41 is, form bigger area with arc cushion 31 between, be favorable to improving the travelling comfort that people's back leaned on arc cushion 31, the distance of baffle strip 35 to arc cushion 31 arc top, the distance of baffle strip 35 to flat cushion 32 and the distance of spacing strip 24 to the back framework 21 lateral wall of open slot 25 end are all the same, are convenient for select to use arc cushion 31 and flat cushion 32 as required.

The utility model discloses a theory of use is: firstly, selecting to use an arc-shaped back cushion 31 or a flat back cushion 32 according to use requirements, when the arc-shaped back cushion 31 is used, enabling the arc-shaped back cushion 31 to face the direction of the office chair body 1, enabling a cross-shaped sliding block 36 at the bottom of the arc-shaped back cushion 31 to slide into an open slot 25 through a cross-shaped slot 61, enabling a fixed bolt seat 33 to be located in a bolt seat slot 22 at the top of the side wall of a backrest frame body 21, overturning a guide rod 6, enabling a fixed bolt 62 to penetrate through a fixed bolt hole 34 to an internal thread hole 23, enabling a backrest 2 to be located between a limit strip 24 and the guide rod 6 because the distance between the limit strips 24 is smaller than the distance between baffle strips 35, and fixing the backrest 2 in the backrest frame body 21 through; when the flat back cushion 32 needs to be used, the fixing bolt 62 is firstly taken down, the cross-shaped sliding block 36 at the bottom of the arc-shaped back cushion 31 slides into the cross-shaped groove 61 through the open slot 25, then the arc-shaped back cushion 31 is rotated 180 degrees, so that the flat back cushion 32 faces the direction of the office chair body 1, then the cross-shaped sliding block 36 at the bottom of the arc-shaped back cushion 31 slides into the open slot 25 through the cross-shaped groove 61, meanwhile, the fixing bolt seat 33 is positioned in the bolt seat slot 22 at the top of the side wall of the backrest frame body 21, the fixing bolt 62 penetrates through the fixing bolt hole 34 to the internal thread hole 23, and the backrest 2 can be fixed in the backrest frame body 21 through the fixing bolt 62; the hexagonal rod 84 can be taken down as required and then rotated by taking the rotating shaft 81 as the axis, and the armrest body 7 can be rotated to the top surface of the office chair body 1 for being held by the hands of people or being convenient for building up the ceiling by the arms, which is beneficial to improving the comfort; the armrest body 7 can also be rotated to the bottom of the office chair body 1, and when the office chair convenient to adjust is pushed to the lower side of a desktop for placing, the armrest body 7 cannot interfere with the desktop; the arc-shaped cushion body 41 is overturned through the rotating shaft 42, so that the arc-shaped cushion body 41 is respectively positioned on two sides of the arc-shaped back cushion 31, and a larger area is formed between the arc-shaped back cushion 31, and the improvement of the comfort of leaning on the arc-shaped back cushion 31 by the back of people is facilitated.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an office chair convenient to adjust which characterized in that: comprises an office chair body (1), a backrest (2) is arranged at the rear end of the top surface of the office chair body (1), the backrest (2) comprises a backrest frame body (21), the backrest frame body (21) is of a rectangular frame structure, the bottom surface of the backrest frame body (21) is vertically arranged on the side wall of the rear end of the office chair body (1), a main back cushion (3) is movably arranged in the backrest frame body (21), auxiliary back cushions (4) are arranged at the left end and the right end of the backrest frame body (21), the main back cushion (3) comprises an arc-shaped back cushion (31) and a flat back cushion (32), the arc-shaped back cushion (31) and the flat back cushion (32) are both positioned in the backrest frame body (21), the flat back cushion (32) is fixedly arranged on an arc-shaped opening of the arc-shaped back cushion (31), a fixed bolt seat (33) is arranged at the top of the arc-shaped back cushion (31), and fixed bolt holes (34, two side walls of the arc-shaped back cushion (31) are respectively provided with a baffle plate strip (35), the length of the baffle plate strips (35) is the same as that of the arc-shaped opening of the arc-shaped back cushion (31), the bottom of the arc-shaped back cushion (31) is hinged with a cross-shaped sliding block (36), the left and right opposite inner walls of the back cushion frame body (21) are respectively provided with a limiting strip (24), the distance between the limiting strips (24) is smaller than that between the baffle plate strips (35), the bottom side wall of the back cushion frame body (21) is provided with an open slot (25), the top surface of the open slot (25) is in an open shape, the cross-shaped sliding block (36) is positioned in the open slot (25), the side wall of the open slot (25) is also movably provided with a guide rod (6), the width of the open slot (25) is larger than that of the guide rod (6), the top surface of the guide, the bottom of one end of the guide rod (6) is hinged to the side wall of the open slot (25), a cross-shaped groove (61) is further formed in the top of the guide rod (6), the cross-shaped groove (61) is communicated with the open slot (25), the size of the cross-shaped groove (61) is matched with that of the cross-shaped sliding block (36), a fixing bolt (62) is further arranged at the other end of the guide rod (6), a spring (63) is further sleeved outside the fixing bolt (62), a bolt seat slot (22) is further formed in the top of the side wall of the backrest frame body (21), an internal thread hole (23) is formed in the bolt seat slot (22), a fixing bolt seat (33) is located in the bolt seat slot (22), the positions of the fixing bolt (62) and the internal thread hole (23) and the fixing bolt hole (34) correspond to each other, the fixing bolt (62) penetrates through the fixing bolt hole (34) to the internal thread hole (23), the arc opening of arc pad body (41) is towards back framework (21), and arc pad body (41) are hollow column structure, and arc pad body (41) articulate both ends about back framework (21) through pivot (42), and the left and right sides of office chair body (1) top surface still all is provided with armrest apparatus (5).

2. An adjustable office chair as claimed in claim 1, wherein: the armrest device (5) comprises an armrest body (7) and a connecting rod (8), one end of the connecting rod (8) is fixedly connected with the armrest body (7), a rotating shaft (81) is arranged at the other end of the connecting rod (8), the rotating shaft (81) is of a cylindrical structure, a rotating shaft left seat (82) and a rotating shaft right seat (83) are respectively and fixedly arranged on the office chair body (1) at the two ends of the rotating shaft (81), the rotating shaft left seat (82) and the rotating shaft right seat (83) are arranged in parallel at intervals, the rotating shaft left seat (82) and the rotating shaft right seat (83) are both of circular ring structures, the two ends of the rotating shaft (81) are respectively and rotatably arranged on the rotating shaft left seat (82) and the rotating shaft right seat (83), one end of the rotating shaft (81) and one end of the rotating shaft right seat (83) are both of inner hexagonal groove structures with the same size, and one end of the rotating shaft (81) and one end of, a hexagonal rod (84) is movably arranged in one end of the rotating shaft right seat (83), and the hexagonal rod (84) penetrates through one end of the rotating shaft right seat (83) to one end of the rotating shaft (81).

3. An adjustable office chair as claimed in claim 2, wherein: the one end top surface of handrail body (7) is arc column structure, and the other end of handrail body (7) is provided with rectangle pad (72) through connecting rod (71) activity, and the one end of connecting rod (71) is fixed to be set up on the bottom surface of rectangle pad (72), and the other end of connecting rod (71) passes the other end of handrail body (7), and is interference fit between the other end of connecting rod (71) and handrail body (7).

4. An adjustable office chair as claimed in claim 1, wherein: the length of the arc-shaped opening of the arc-shaped cushion body (41) is the same as that of the arc-shaped opening of the arc-shaped back cushion (31), and the arc-shaped cushion body (41) and the arc-shaped back cushion (31) are on the same plane.

5. An adjustable office chair as claimed in claim 1, wherein: the width of the arc-shaped back cushion (31) is the same as that of the flat back cushion (32), and the length of the arc-shaped opening of the arc-shaped back cushion (31) is the same as that of the flat back cushion (32).

6. An adjustable office chair as claimed in claim 1, wherein: the distance from the baffle strip (35) to the arc-shaped top of the arc-shaped back cushion (31), the distance from the baffle strip (35) to the flat back cushion (32) and the distance from the limiting strip (24) to the side wall of the backrest frame body (21) at the end of the open slot (25) are the same.