CN203435989U

CN203435989U - Office chair

Info

Publication number: CN203435989U
Application number: CN201320519577.4U
Authority: CN
Inventors: 王菲
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-23
Filing date: 2013-08-23
Publication date: 2014-02-19
Anticipated expiration: 2023-08-23

Abstract

The utility model provides an office chair, belongs to the technical field of office furniture, and solves the troublesome problems that foot brakes are required to be locked after a conventional office chair finishes moving and needs to be loosened during movement. The office chair comprises a seat pan and a backrest, wherein four supporting legs are perpendicularly and fixedly connected to the lower side surface of the seat pan; one blind hole is formed in the lower end surface of each supporting leg, a U-shaped bracket is glidingly connected in the blind hole, and an opening of the U-shaped bracket is identical to that of the blind hole; a wheel is rotationally connected between two side plates of the U-shaped bracket; and a spring is further arranged in the blind hole, one end of the spring acts on the bottom surface of the blind hole, and the other end of the spring acts on the bottom surface of the U-shaped bracket. The office chair can avoid moving after a user sits down and can conveniently move after the user stands up.

Description

A kind of office chair

Technical field

The utility model belongs to office furniture technical field, relates to a kind of office chair.

Background technology

Office chair refers in routine work and social activities to be the convenient various chairs that are equipped with of working.Office partner is divided into narrow sense and broad sense by office chair, the office chair of narrow sense refers to the chair that people sits while carrying out desktop work under sitting posture state, the chair that the office chair of broad sense is the office that is useful on, comprises executive chair, middle class in a kindergarten chair, the chair of receiving a visitor, office worker's chair, conference chair, visitor's chair, training chair etc.Office chair kind is various, due to its for people for a long time, and everyone use habit is different, therefore office chair generally has a large amount of functions, as the equal adjustable office chair of seat support and the chair back, only have the adjustable office chair of angle of back-rest, unadjustable office chair, the chair back, seat surface, handrail relative position, angle be uncontrollable office chair etc. all.Office chair, for conveniently moving, generally all can be installed roller on leg, and the office chair that roller is still housed in use also can be moved.

For the problems referred to above, Chinese practical new patent application (201120318531.7) discloses a kind of office chair, comprise the chair back, seat support, chair pin and be fixedly connected with seat support and the rotational structure of chair pin, described chair pin is three-legged support or four foot supports, described rotating mechanism comprise rotating cylinder and with the axis of rotating cylinder pivot joint, the articulated section of described rotating cylinder and axis is also provided with the latch that stops rotating mechanism to rotate; The end of described three-legged support or four foot supports is equipped with universal wheel, and described universal wheel place is equipped with and controls the brake part that universal wheel rotates.Office chair structure of the present utility model is succinct, can stop the rotation of seat, can stop again the rolling of the universal wheel of support end, also has the function of fan simultaneously.But after having moved, all need to lock service brake at every turn, when mobile, need again to unclamp service brake, comparatively trouble.

Summary of the invention

The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of office chair, and it is mobile that this office chair can be avoided after sitting down, and after standing, can conveniently move.

The purpose of this utility model can realize by following technical proposal: a kind of office chair, comprise a basin and the backrest being connected on present basin, on described seat basin downside, be vertically fixed with four legs, it is characterized in that, on the lower end surface of described leg, all offer a blind hole, in described blind hole, slidably connect a U-shaped support, the opening of described U-shaped support is consistent with the opening of blind hole, between the biside plate of U-shaped support, be rotatably connected to a roller, in described blind hole, be also provided with a spring, one end of described spring acts on blind hole bottom surface, the other end acts on U-shaped support bottom surface.

Seat basin and backrest are generally enclosed with spongy layer, improve comfortableness, the downside of seat basin is a rectangle plane, four legs lay respectively at four edges of downside, because U-shaped support can move axially along blind hole with roller, therefore when people sits down, people's weight can be ordered about U-shaped support Compress Spring, in roller indentation blind hole, now the direct kiss the earth of the lower end surface of leg, avoids office chair to move; When people stands, on office chair, lost people's weight, and the elastic force of spring is greater than the weight of office chair, so spring can order about roller and stretch out blind hole, facilitate the movement of office chair, whole process, without manual control, is used convenient.

In above-mentioned office chair, in described blind hole, be also provided with the spring base of a circle, on the inwall of described blind hole, offer vertically two gathering sills, on the periphery wall of described spring base, there are two guide pads, described guide pad is slidably connected in gathering sill, the bottom surface of described U-shaped support is connected on a side of spring base, and one end of described spring is pressed on the another side of spring base.During telescopic spring, guide pad moves along chute, for the movement of U-shaped support provides guidance quality.

In above-mentioned office chair, described gathering sill has limited block towards one end of blind hole opening.Can limit the maximum overhang of roller, avoid roller and U-shaped support to drop out blind hole simultaneously.

In above-mentioned office chair, the relative blind hole axial line of described two gathering sill is symmetrical arranged.Structure is more symmetrical, makes whole guiding process more smooth.

In above-mentioned office chair, described U-shaped support is rotatably connected on spring base by a bearing pin, and the axial line of described bearing pin overlaps with the axial line of blind hole.Spring base is because the reason of guide pad cannot be rotated, and U-shaped support can rotate with the relative spring base of roller, thereby facilitates office chair to move to different directions.

In above-mentioned office chair, biside plate lateral surface and the blind hole inwall of described U-shaped support fit.Make blind hole hole wall carry out horizontal direction to U-shaped support spacing, provide support simultaneously, avoid U-shaped support to rock in blind hole.

In above-mentioned office chair, on the side of described spring base, there is a circular groove, the end of above-mentioned spring is pressed in groove.Make spring more stable with being connected of spring base, avoid spring to depart from spring base.

Compared with prior art, this office chair has following advantage:

1, because U-shaped support can move axially along blind hole with roller, therefore, when people sits down, people's weight can be ordered about U-shaped support Compress Spring, and in roller indentation blind hole, now the direct kiss the earth of the lower end surface of leg, avoids office chair to move; When people stands, on office chair, lost people's weight, and the elastic force of spring is greater than the weight of office chair, so spring can order about roller and stretch out blind hole, facilitate the movement of office chair, whole process, without manual control, is used convenient.

2,, because U-shaped support is rotatably connected on spring base by a bearing pin, therefore U-shaped support can rotate with the relative spring base of roller, thereby facilitates office chair to move to different directions.

3,, because spring base is slidably connected in gathering sill by guide pad, therefore can provide guidance quality for the movement of U-shaped support.

Accompanying drawing explanation

Fig. 1 is the perspective view of this office chair.

Fig. 2 is the partial structurtes cutaway view of this office chair.

In figure, 1, seat basin; 2, backrest; 3, leg; 31, blind hole; 311, gathering sill; 312, limited block; 4, U-shaped support; 5, roller; 6, spring; 7, spring base; 71, guide pad; 72, groove; 8, bearing pin.

The specific embodiment

Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As shown in Figure 1 and Figure 2, a kind of office chair, comprises a basin 1 and backrest 2, and backrest 2 connects on present basin 1, and seat basin 1 and backrest 2 are generally enclosed with spongy layer, improve comfortableness.The downside of seat basin 1 is a rectangle plane, is vertically fixed with four edges that 3, four legs 3 of four legs lay respectively at downside on this downside.On the lower end surface of leg 3, all offer a blind hole 31, in blind hole 31, slidably connect a U-shaped support 4, the opening of U-shaped support 4 is consistent with the opening of blind hole 31, between the biside plate of U-shaped support 4, be rotatably connected to a roller 5, in blind hole 31, be also provided with a spring 6, one end of spring 6 acts on blind hole 31 bottom surfaces, and the other end acts on U-shaped support 4 bottom surfaces.Because U-shaped support 4 can move axially along blind hole 31 with roller 5, therefore, when people sits down, people's weight can be ordered about U-shaped support 4 Compress Springs 6, and in roller 5 indentation blind holes 31, now the direct kiss the earth of the lower end surface of leg 3, avoids office chair to move; When people stands, on office chair, lost people's weight, and the elastic force of spring 6 is greater than the weight of office chair, so spring 6 can order about roller 5 and stretch out blind hole 31, facilitate the movement of office chair, whole process, without manual control, is used convenient.

Specifically, in blind hole 31, be also provided with the spring base 7 of a circle, on the inwall of blind hole 31, offer vertically two gathering sills 311, on the periphery wall of spring base 7, have two guide pads 71, guide pad 71 is slidably connected in gathering sill 311, and the bottom surface of U-shaped support 4 is connected on a side of spring base 7, one end of spring 6 is pressed on the another side of spring base 7, when spring 6 is flexible, guide pad 71 moves along chute 311, for the movement of U-shaped support 4 provides guidance quality.Gathering sill 311 has limited block 312 towards one end of blind hole 31 openings, can limit the maximum overhang of roller 5, avoids roller 5 and U-shaped support 4 to drop out blind hole 31 simultaneously.Relative blind hole 31 axial lines of two gathering sills 311 are symmetrical arranged, and structure is more symmetrical, makes whole guiding process more smooth.U-shaped support 4 is rotatably connected on spring base 7 by a bearing pin 8, and the axial line of bearing pin 8 overlaps with the axial line of blind hole 31, and U-shaped support 4 can rotate with the relative spring base 7 of roller 5, thereby facilitates office chair to move to different directions.The biside plate lateral surface of U-shaped support 4 and blind hole 31 inwalls fit, and make blind hole 31 hole walls carry out horizontal direction to U-shaped support 4 spacing, provide support simultaneously, avoid U-shaped support 4 to rock in blind hole 31.On the side of spring base 7, have a circular groove 72, the end of spring 6 is pressed in groove 72, makes spring 6 more stable with being connected of spring base 7, avoids spring 6 to depart from spring base 7.

Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although more used the terms such as seat basin 1, backrest 2, leg 3, blind hole 31, gathering sill 311, limited block 312, U-shaped support 4, roller 5, spring 6, spring base 7, guide pad 71, groove 72, bearing pin 8 herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.

Claims

1. an office chair, comprise a basin (1) and the backrest (2) being connected on present basin (1), on described seat basin (1) downside, be vertically fixed with four legs (3), it is characterized in that, on the lower end surface of described leg (3), all offer a blind hole (31), in described blind hole (31), slidably connect a U-shaped support (4), the opening of described U-shaped support (4) is consistent with the opening of blind hole (31), between the biside plate of U-shaped support (4), be rotatably connected to a roller (5), in described blind hole (31), be also provided with a spring (6), one end of described spring (6) acts on blind hole (31) bottom surface, the other end acts on U-shaped support (4) bottom surface.

2. office chair according to claim 1, it is characterized in that, in described blind hole (31), be also provided with the spring base (7) of a circle, on the inwall of described blind hole (31), offer vertically two gathering sills (311), on the periphery wall of described spring base (7), there are two guide pads (71), described guide pad (71) is slidably connected in gathering sill (311), the bottom surface of described U-shaped support (4) is connected on a side of spring base (7), and one end of described spring (6) is pressed on the another side of spring base (7).

3. office chair according to claim 2, is characterized in that, described gathering sill (311) has limited block (312) towards one end of blind hole (31) opening.

4. office chair according to claim 3, is characterized in that, described two gathering sills (311) relatively blind hole (31) axial line are symmetrical arranged.

5. office chair according to claim 4, is characterized in that, it is upper that described U-shaped support (4) is rotatably connected on spring base (7) by a bearing pin (8), and the axial line of described bearing pin (8) overlaps with the axial line of blind hole (31).

6. according to the office chair described in claim 4 or 5, it is characterized in that, the biside plate lateral surface of described U-shaped support (4) and blind hole (31) inwall fit.

7. office chair according to claim 6, is characterized in that, has a circular groove (72) on the side of described spring base (7), and the end of above-mentioned spring (6) is pressed in groove (72).