CN203493178U

CN203493178U - Chair with angle-adjustable backrest

Info

Publication number: CN203493178U
Application number: CN201320629374.0U
Authority: CN
Inventors: 郑雪峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-13
Filing date: 2013-10-13
Publication date: 2014-03-26
Anticipated expiration: 2023-10-13

Abstract

The utility model discloses a chair with an angle-adjustable backrest. The chair comprises a chair frame, adjusting knobs, connecting seats, positioning seats and a rear foot tube, and is characterized in that the positioning seats are fixedly connected to both sides of the chair frame; the connecting seats are arranged at the two ends of the rear foot tube; each connecting seat is hinged together with each positioning seat through the corresponding adjusting knob. The connecting seats and the positioning seats are arranged between the chair frame and the back foot tube, and the positioning or rotation of the rear foot tube is controlled through the adjusting knobs, so that the inclination angle of a backrest on the chain frame can be adjusted. The chair has the advantages of simple structure and convenience in operation, and is suitable for being taken as a chair for use on occasions of rooms, yards and the like.

Description

A kind of chair that can adjusting angle of backrest

Technical field

The utility model belongs to chair technical field, particularly a kind of chair that can adjusting angle of backrest.

Background technology

The chair of existing family expenses or outdoor is mostly fixing backrest angle conventionally, backrest angle is single, can not meet the comfortableness demand of different use crowds to backrest inclination angle, also have sub-fraction chair to adopt air pump structure to realize the adjusting of backrest angle, the chair of this class formation is often because cost is higher, be difficult to promote, for the problems referred to above, be necessary to provide a kind of chair of simple in structure and adjustable backrest angle.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of chair of adjustable backrest angle.

The technical scheme that the utility model adopts is: a kind of chair that can adjusting angle of backrest, it comprises chair frame, adjusting knob, Connection Block, positioning seat, rear foot tube, it is characterized in that positioning seat is fixed in the both sides of chair frame, rear foot tube two ends are provided with Connection Block, and Connection Block is hinged by adjusting knob and positioning seat.

Described chair frame is provided with backrest, seat surface, shirt rim, the forward foot in a step; It is characterized in that backrest, seat surface, shirt rim connect into " Z " shape by arc transition, the downside of shirt rim is provided with the forward foot in a step.

Described Connection Block is provided with positioning sleeve, locating hole, tooth engaged I, hinge hole I, it is characterized in that locating hole is provided with positioning sleeve outward, in locating hole, install rear foot tube, hinge hole I is vertical with locating hole to be arranged, the side of Connection Block is provided with a circle tooth engaged I, and pin pipe is by hinge hole I, locating hole and Connection Block Joint.

Described positioning seat is provided with fixing hole, tooth engaged II, hinge hole II, described positioning seat is by two locating holes and chair frame Joint, tooth engaged II matches with the tooth engaged I on Connection Block, and hinge hole II and hinge hole I coaxially arrange, and positioning seat and Connection Block are hinged.

By adjusting knob, can make tooth engaged I on Connection Block and the mutual interlock of tooth engaged II on positioning seat or separated, thereby control location or the rotation of rear foot tube, and then regulate the angle of inclination of backrest in chair frame.

The beneficial effects of the utility model are: by Connection Block and positioning seat being set between chair frame and rear foot tube and controlling location or the rotation of rear foot tube by adjusting knob, and then the angle of inclination of backrest in adjusting chair frame, therefore, the utlity model has simple in structure, easy to operate and be suitable as the feature that the occasions such as indoor, garden are used.

Accompanying drawing explanation

Fig. 1 is schematic perspective view of the present utility model.

Fig. 2 is the schematic perspective view of the utility model Connection Block.

Fig. 3 is the sectional perspective schematic diagram of the utility model rear foot tube and chair frame connecting portion.

Fig. 4 is the comparison structure schematic diagram under the different use states of the utility model.

Fig. 5 is the schematic perspective view of the utility model folded state.

Fig. 6 is the schematic perspective view of the utility model stacked state.

The specific embodiment

Below by specific embodiment, and by reference to the accompanying drawings the technical solution of the utility model is described further.

Embodiment: with reference to Fig. 1, a kind of chair that can adjusting angle of backrest, it comprises chair frame 1, adjusting knob 2, Connection Block 3, positioning seat 4, rear foot tube 5, it is characterized in that positioning seat 4 is fixed in the both sides of chair frame 1, rear foot tube 5 two ends are provided with Connection Block 3, and Connection Block 3 is hinged by adjusting knob 2 and positioning seat 4.Described chair frame 1 is provided with backrest 11, seat surface 12, shirt rim 13, the forward foot in a step 14; It is characterized in that backrest 11, seat surface 12, shirt rim 13 connect into " Z " shape by arc transition, the downside of shirt rim 13 is provided with the forward foot in a step 14.

With reference to Fig. 2, described Connection Block 3 is provided with positioning sleeve 31, locating hole 32, tooth engaged I33, hinge hole I34, it is characterized in that the outer positioning sleeve 31 that is provided with of locating hole 32, in locating hole 32, install rear foot tube 5, hinge hole I34 setting vertical with locating hole 32, the side of Connection Block 3 is provided with a circle tooth engaged I33.

With reference to Fig. 3, described positioning seat 4 is provided with fixing hole 41, tooth engaged II42, hinge hole II43, described positioning seat 4 is by two fixing holes 41 and chair frame 1 Joint, tooth engaged II42 matches with the tooth engaged I33 on Connection Block 3, hinge hole I34 on hinge hole II43 and Connection Block 3 coaxially arranges, and positioning seat 4 and Connection Block 3 are hinged.

With reference to Fig. 4, during use, by adjusting knob 2, can make tooth engaged I33 on Connection Block 3 and the mutual interlock of tooth engaged II42 on positioning seat 4 or separated, thereby control location or the rotation of rear foot tube 5, and then regulate the angle of inclination of backrest 11 in chair frame 1, finally obtain the use state of backrest 11 differing tilt angles, meet user's different demands.

With reference to Fig. 5, when folding, by adjusting knob 2, can make tooth engaged I33 on Connection Block 3 and the tooth engaged II42 on positioning seat 4 be separated from each other, rear foot tube 5 can be clockwise rotated around chair frame 1, until rear foot tube 5 fits with chair frame 1, now, chair smaller volume, conveniently transports and carries.

With reference to Fig. 6, during stacking, the chair folding can be placed in the chair frame 1 of first chair successively, upwards stacks, and can improve space availability ratio.

Above-described embodiment is a kind of preferred version of the present utility model, not utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.

Claims

One kind can adjusting angle of backrest chair, it comprises chair frame (1), adjusting knob (2), Connection Block (3), positioning seat (4), rear foot tube (5), it is characterized in that positioning seat (4) is fixed in the both sides of chair frame (1), rear foot tube (5) two ends are provided with Connection Block (3), and Connection Block (3) is hinged by adjusting knob (2) and positioning seat (4).
2. a kind of chair that can adjusting angle of backrest according to claim 1, is characterized in that described chair frame (1) is provided with backrest (11), seat surface (12), shirt rim (13), the forward foot in a step (14); Described backrest (11), seat surface (12), shirt rim (13) connect into " Z " shape by arc transition, and the downside of shirt rim (13) is provided with the forward foot in a step (14).
3. a kind of chair that can adjusting angle of backrest according to claim 1, it is characterized in that described Connection Block (3) is provided with positioning sleeve (31), locating hole (32), tooth engaged I(33), hinge hole I(34), the outer positioning sleeve (31) that is provided with of described locating hole (32), in locating hole (32), install rear foot tube (5), hinge hole I(34) with the vertical setting of locating hole (32), the side of Connection Block (3) is provided with a circle tooth engaged I(33).
4. according to a kind of chair that can adjusting angle of backrest described in claim 1 or 3, it is characterized in that described positioning seat (4) is provided with fixing hole (41), tooth engaged II(42), hinge hole II(43), described positioning seat (4) is by two fixing holes (41) and chair frame (1) Joint, tooth engaged II(42) with tooth engaged I(33 on Connection Block (3)) match, hinge hole II(43) the hinge hole I(34 and on Connection Block (3)) coaxially arrange, positioning seat (4) and Connection Block (3) are hinged.