CN202820399U

CN202820399U - Folding chair

Info

Publication number: CN202820399U
Application number: CN 201220512525
Authority: CN
Inventors: 周贵斌; 蒋承志; 张健; 龙锟; 谭阳
Original assignee: Panzhihua University
Current assignee: Panzhihua University
Priority date: 2012-10-08
Filing date: 2012-10-08
Publication date: 2013-03-27
Anticipated expiration: 2022-10-08

Abstract

The utility model provides a folding chair. The folding chair comprises a chair back, a sitting plate and a base, wherein the chair back and the base are connected with the sitting plate, the folding chair further comprises a rotating shaft, a first rotating shaft sleeve is arranged at the lower end of the chair back, a second rotating shaft sleeve is arranged at the back end of the sitting plate and further matched with the rotating shaft, and a bulge is arranged on the first rotating shaft sleeve; a first adapter ring is arranged on the lower surface of the sitting plate, a second adapter ring is arranged on the upper surface of the base, and a hole is formed in the second adapter ring; the folding chair further comprises a support rod, one end of the support rod is inserted into the hole, and the other end of the support rod is connected with the first adapter ring; and a connecting rod comprises an upper arm and a lower arm, the upper arm and the lower arm are respectively connected with the first adapter ring and the second adapter ring through bolts, and the upper arm is connected with the lower arm through the bolt. The chair back is up-and-down through, the comfort is increased, the chair back is rotated to be folded with the sitting plate, after the support rod is detached, the joint type connecting rod can fold the sitting plate and the base, the posture of the base is not changed, the stability in placement is ensured, and the requirements for a placement environment are low.

Description

Folding seat

Technical field

The utility model relates to a kind of folding seat.

Background technology

Existing folding seat mainly is divided into without two kinds of the Miniature folding chair of the chair back and medium-sized folding seat.Miniature folding chair does not only have the chair back, and the seat area is little, is not suitable for long-time use; Although medium-sized folding seat is provided with the chair back, the area of the chair back is very little, and comfort is also bad.More crucial is that the folding mode of these two kinds of folding seat all is that seat is holded up, and utilizes simultaneously lever principle that supporting leg is closed up, like this, when chair is in folded state, only have two supporting legs to contact with ground, the vertical planes such as needs dependence wall just can be put, put and take up room greatly, environmental suitability is poor, nor steadily, if angles is improper, perhaps ground is more sliding, just is easy to slip.In sum, existing folding seat such as is using and deposit all to have inconvenience at the aspect.

The utility model content

Technical problem to be solved in the utility model provides a kind of folding seat, and this folding seat increases comfortableness when having guaranteed folder function, and puts steadily after folding, puts environmental requirement low.

The technical scheme that the utility model technical solution problem adopts is: this folding seat comprises the chair back, seat and base, the described chair back and base all are connected with described seat, also comprise turning cylinder, be provided with the first shaft sleeve in the lower end of the described chair back, be provided with the second shaft sleeve in the rear end of described seat, described the first shaft sleeve is coaxial with described the second shaft sleeve, and all is complementary with described turning cylinder, is provided with projection at described the first shaft sleeve; Lower surface at described seat is provided with the first adapter ring, is provided with the second adapter ring at the upper surface of described base, arranges porose at described the second adapter ring; Also comprise support bar, an end of described support bar inserts described hole, and the other end is connected with described the first adapter ring; Also comprise connecting rod, described connecting rod comprises upper arm and underarm, described upper arm be connected with underarm by bolt and described the first adapter ring be connected adapter ring and be connected, be bolted between described upper arm and the underarm.The chair back can be the up/down perforation formula, increase comfortableness, and the chair back rotates take turning cylinder as axle, realize and the closing up of seat, pull down support bar after, articulated connecting rod closes up seat and base, do not change structure and the attitude of base, guaranteed the stationarity of putting.

Top at described the second adapter ring also is provided with nut, and described support bar is threaded rod, and is complementary with described nut, and nut plays spacing effect, by the position of adjusting nut on support bar, adjusts the height of seat.

Also comprise bearing, be provided with holddown groove at the lower surface of described seat, described holddown groove and described the first adapter ring cooperatively interact by described bearing.Bearing makes between seat and the base and can relatively rotate, and has increased the practicality of this folding seat.

The beneficial effects of the utility model are: this folding seat has changed folding mode, realize closing up of the chair back and seat by turning cylinder, realize closing up of seat and base by articulated connecting rod again, and then the chair back and seat are all finished with the mode and the base that move down folding.The benefit of this folding mode is, structure and the attitude of folding rear base are constant, base still can provide good stability, and the shape approximation of folding rear whole chair is in a plate, convenient putting of single folding seat and stacking of a plurality of folding seat, saved placing space, the requirement of putting environment has been reduced greatly.By increase nut and bearing are set, this folding seat has had respectively the function of adjusting seat height and rotation under the use state, further increased practicality, has made things convenient for the user.

Description of drawings

Fig. 1 is the chair back of the utility model folding seat and the fit structure schematic diagram of turning cylinder.

Fig. 2 is the structural representation of the utility model folding seat.

The specific embodiment

As depicted in figs. 1 and 2, be provided with the first shaft sleeve 11 in the lower end of the chair back 1, be provided with projection 13 at the first shaft sleeve 11, be provided with the second shaft sleeve 21 in the rear end of seat 2, turning cylinder 2 inserts the first shaft sleeve 11 and the second shaft sleeve 21.The chair back 1 rotates take turning cylinder 12 as axle, and the chair back 1 both can overlay on the seat 2, realizes folding, also can be after turning an angle, and the rear end in contact of projection 13 and seat 2, realization is spacing to the chair back 1, in use user's back is formed support.As shown in Figure 2, be provided with the first adapter ring 22 at the lower surface of seat 2, be provided with at the upper surface of base 3 and arrange porosely 32 on the second adapter ring 31, the second adapter rings 31, hole 32 can be blind hole, also can be through hole.One end of support bar 4 is connected with the first adapter ring 22, and in the other end patchhole 32, the bottom of support bar 4 contacts with the upper surface of the second adapter ring 31 or base 3, plays the effect of supporting seat 2.The upper arm 51 of connecting rod, underarm 52 are bolted with the first adapter ring 22 and the second adapter ring 31 respectively, and upper arm 51 also is bolted with underarm 52, and bolt had both played the effect that is fixedly connected with, and have again the function identical with turning cylinder 12.The set-up mode in this similar joint of connecting rod both can have been practiced seat 2 being connected together with base 3, can satisfy again the needs that change the distance between seat 2 and the base 3.Like this, after taking off support bar 4, seat 2 falls, and closes up with base 3, rotate the chair back 1, the chair back 1 is overlayed on the seat 2, and whole folding seat namely can be folded into the shape of an approximate plate, takes up room little, and from the use state to folded state, the structure of base 3 does not change, still keep contacting securely with ground, has guaranteed that this folding seat puts stability after folding.

A kind of better mode is that as shown in Figure 2, support bar 4 is threaded rod, at the top of the second adapter ring 31 nut 6 is set.Nut 6 contacts with the second adapter ring 31, play support bar 4 spacing effects with supporting, rotating nut 6, change the relative position of nut 6 on support bar 4, can when the state of use, realize the purpose of distance between adjustable seat panel 2 and the base 3, thereby change the height of seat 2, make the scope of application of this folding seat wider, bring larger convenience to the user.

Another kind of better mode is, as shown in Figure 2, lower surface at seat 2 is provided with holddown groove 23, in holddown groove 23, be provided with bearing 7, the first adapter rings 22 and cooperatively interact by bearing 7 and holddown groove 23, seat 2 and the first adapter ring 22 can be relatively rotated, and then relatively rotating between realization seat 2 and the base 3, this folding seat has namely had the function of rotation, has further increased practicality, for the user provides more convenience.

Claims

1. folding seat, comprise the chair back (1), seat (2) and base (3), the described chair back (1) is connected 3 with base) all be connected with described seat (2), it is characterized in that: also comprise turning cylinder (12), be provided with the first shaft sleeve (11) in the lower end of the described chair back (1), be provided with the second shaft sleeve (21) in the rear end of described seat (2), described the first shaft sleeve (11) is coaxial with described the second shaft sleeve (21), and all be complementary with described turning cylinder (12), be provided with projection (13) at described the first shaft sleeve (11); Lower surface at described seat (2) is provided with the first adapter ring (22), is provided with the second adapter ring (31) at the upper surface of described base (3), at described the second adapter ring (31) porose (32) is set; Also comprise support bar (4), an end of described support bar (4) inserts described hole (32), and the other end is connected with described the first adapter ring (22); Also comprise connecting rod, described connecting rod comprises upper arm (51) and underarm (52), described upper arm (51) is connected 52 with underarm) respectively by bolt and described the first adapter ring (22) be connected adapter ring (31) and be connected, be bolted between described upper arm (51) and the underarm (52).

2. folding seat according to claim 1, it is characterized in that: also be provided with nut (6) at the top of described the second adapter ring (31), described support bar (4) is threaded rod, and is complementary with described nut (6).

3. folding seat according to claim 1 is characterized in that: also comprise bearing (7), be provided with holddown groove (23) at the lower surface of described seat (2), described holddown groove (23) cooperatively interacts by bearing (7) with described the first adapter ring (22).