CN211242453U

CN211242453U - Folding chair convenient to fold and automatic expansion

Info

Publication number: CN211242453U
Application number: CN201921694632.7U
Authority: CN
Inventors: 李宇航; 王家辉; 陈帅; 叶靖轲; 骆威航; 张建荣
Original assignee: Jinhua Polytechnic
Current assignee: Jinhua Polytechnic
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-08-14
Anticipated expiration: 2029-09-28

Abstract

The utility model provides a folding chair convenient to fold and automatic expansion, it includes backup plate, slider, connecting piece and bedplate, the chair leg. The backup plate is provided with a sliding groove, the sliding part is formed by fixedly connecting a sliding rod and a sliding connecting rod, the sliding rod is arranged in the sliding groove, and the lower part of the backup plate is rotationally connected with the first rotating rod. The seat board is fixedly connected with the second rotating rod, and the second rotating rod is rotatably connected with the sliding connecting rod. The connecting piece and second dwang fixed connection, and the other end and the first dwang fixed connection of connecting piece. The chair legs are rotatably connected with the second rotating rod. The front end of the seat board is provided with a clamping groove which is a U-shaped groove. The chair legs are provided with support frames, and the seat board can be clamped into the support frames and is attached to the plane of the support frames. The transverse rod of the chair leg is upwards provided with a clamping piece, and a semicircular notch above the clamping piece is positioned at the tail end of the sliding connecting rod, but has a certain gap with the tail end of the sliding connecting rod. The middle of the clamping piece and the support frame of the chair leg is provided with a buckle, and the buckle is fastened with the clamping groove after the chair is folded.

Description

Folding chair convenient to fold and automatic expansion

Technical Field

The utility model relates to the technical field of furniture, in particular to folding chair convenient to fold and automatic expansion.

Background

The folding chair has a plurality of uses in life, and the folding chair can reduce the volume of the folding chair and is convenient to store by folding. The existing folding chair has two states of unfolding and folding, and the two states are completed by spending certain strength, which is a defect in the field. Therefore, it is an important point in the art to design a folding chair that is convenient to fold and automatically unfold

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, the utility model provides a folding chair convenient to fold and automatic expansion.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a folding chair convenient to fold and automatic expansion which characterized in that: comprises a back plate, a sliding part, a connecting part, a seat plate and chair legs. The backup plate is provided with a sliding groove, the sliding part is formed by fixedly connecting a sliding rod and a sliding connecting rod, the sliding rod is arranged in the sliding groove, and the lower part of the backup plate is rotatably connected with the first rotating rod. The seat board is fixedly connected with the second rotating rod, and the second rotating rod is rotatably connected with the sliding connecting rod. The connecting piece is fixedly connected with the second rotating rod, and the other end of the connecting piece is fixedly connected with the first rotating rod. The chair legs are rotatably connected with the second rotating rod.

Furthermore, the folding chair convenient to fold and automatically unfold is characterized in that the front end of the seat board is provided with a clamping groove which is a U-shaped groove.

Furthermore, a folding chair convenient to fold and automatic expansion, its characterized in that, be equipped with the support frame on the chair leg, the bedplate can block into the support frame, with the laminating of support frame plane.

Furthermore, a folding chair convenient to fold and automatic expansion, its characterized in that, the crosspiece of chair leg is followed upwards and is equipped with the screens piece, and the semicircular notch in screens piece top is located the sliding connection rod tail end, nevertheless has certain clearance with the sliding connection rod tail end.

Further, a folding chair convenient to fold and automatic expansion, its characterized in that, be equipped with the buckle in the middle of the screens piece of chair leg and the support frame, the folding back buckle of chair is buckled with the draw-in groove.

By adopting the technical scheme, the invention has the following beneficial effects:

1. the support frame is arranged below the seat plate, so that the stability of the structure is ensured, and the bearing weight is increased.

2. The clamping groove and the buckle are fixed in position under the folding state, and the folding chair can be ensured to be folded only by the force of one hand.

3. The folding chair can be automatically unfolded only by leaning the user backwards and downwards.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the present invention in a folded state.

Fig. 3 is a schematic view of the backup plate of the present invention.

Fig. 4 is a schematic view of the slider of the present invention.

Fig. 5 is a schematic view of a chair leg of the present invention.

Fig. 6 is a schematic view of the seat plate of the present invention.

In the figure, a backup plate (1), a sliding groove (11), a first rotating rod (12), a sliding part (2), a sliding connecting rod (21), a sliding connecting rod tail end (211), a sliding rod (22), a connecting piece (3), a seat plate (4), a seat plate front end (401), a seat plate rear end (402), a clamping groove (41), a second rotating rod (42), chair legs (5), a supporting frame (51), a supporting frame plane (501), a buckle (52) and a clamping part (53).

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Fig. 1-6 show a folding chair which is convenient to fold and automatically unfold and comprises a backrest plate (1), a sliding part (2), a connecting part (3), a seat plate (4) and chair legs (5). The backup plate (1) is provided with a sliding chute (11), and the sliding part (2) is formed by fixedly connecting a sliding rod (22) and a sliding connecting rod (21). The sliding rod (22) is arranged in the chute (11), and a rotatable first rotating rod (12) is arranged below the backup plate (1). The seat board (4) is provided with a second rotating rod (42) which is fixedly connected, and the sliding connecting rod (21) is rotatably connected with the second rotating rod (42). The connecting piece (3) is fixedly connected with the second rotating rod (42), and the other end of the connecting piece (3) is fixedly connected with the first rotating rod (12). The chair legs (5) are rotatably connected with the second rotating rod (42). The front end (401) of the seat board is provided with a clamping groove (41) which is a U-shaped groove. The chair legs (5) are provided with support frames (51), and the seat board (4) can be clamped into the support frames (51) to ensure that the support frame plane (501) is attached to the seat board (4). The crosspiece of the chair leg (5) is upwards provided with a blocking piece (53), a semicircular notch above the blocking piece (53) is positioned at the tail end (211) of the sliding connecting rod, but a certain gap is reserved between the semicircular notch and the tail end (211) of the sliding connecting rod. A buckle (52) is arranged between the blocking part (53) and the support frame (51), and the buckle (52) is tightly buckled with the clamping groove (41) after the chair is folded.

The working principle is as follows:

folding: when a user only needs to press the front end (401) of the seat board downwards, the seat board (4) rotates to drive the second rotating rod (42) which is fixedly connected, and the second rotating rod (42) drives the connecting piece (3) which is fixedly connected to rotate. The other end of the connecting piece (3) is upward to drive the backup plate (1). Backup plate (1) is the top removal forward, drives slider (2) simultaneously and rotates, rotates to a certain extent when slider (2), and screens piece (53) can support slip connecting rod tail end (211), makes slide bar (22) slide down along spout (11), stimulates backup plate (1) gradually, makes backup plate (1) vertical. When the buckle (52) enters the clamping groove (41), the folding of the chair is finished.

Unfolding: the user only needs to lean against the rear end (402) of the seat board, the clamping groove (41) can be separated from the buckle (52) due to the weight of the user, the seat board (4) rotates to drive the second rotating rod (42), and the second rotating rod (42) drives the fixedly connected connecting piece (3) to rotate. The other end of the connecting piece (3) is downward to drive the backup plate (1). The backup plate (1) moves downwards and simultaneously drives the sliding part (2). When the sliding part (2) rotates to a certain degree, the protruding parts at the two ends of the supporting frame (51) can abut against the sliding connecting rod (21), so that the sliding rod (22) slides upwards along the sliding groove (11), and the backup plate (1) is perpendicular to the seat plate (4). When the seat board (4) is attached to the plane (501) of the support frame, the seat is automatically unfolded.

The above is only the specific implementation manner of the present invention, but the present invention is not limited to this, and various improvements can be made without departing from the design concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. The utility model provides a folding chair convenient to fold and automatic expansion which characterized in that: including backup plate (1), slider (2), connecting piece (3) and bedplate (4), chair leg (5), backup plate (1) is equipped with spout (11), slider (2) comprise slide bar (22) and sliding connecting rod (21) fixed connection, and in spout (11) were arranged in slide bar (22), rotatable first dwang (12) were equipped with to backup plate (1) below, bedplate (4) are equipped with fixed second dwang (42), and sliding connecting rod (21) and rotatable being connected of second dwang (42), connecting piece (3) and second dwang (42) fixed connection, and the other end and first dwang (12) fixed connection of this connecting piece (3), chair leg (5) rotate with second dwang (42) and are connected.

2. The folding chair capable of being folded and unfolded automatically as claimed in claim 1, wherein the legs (5) are provided with a support (51), and the seat plate (4) can be clamped into the support (51) and is attached to the support plane (501).

3. The folding chair capable of being folded and unfolded automatically as claimed in claim 1, wherein the crosspiece of the legs (5) is provided with a locking member (53) upwardly, and a semicircular notch above the locking member (53) is located at the rear end (211) of the sliding link but is spaced from the rear end (211) of the sliding link.

4. The folding chair convenient for folding and automatic unfolding according to claim 1, characterized in that a buckle (52) is arranged between the blocking piece (53) and the support frame (51) in the chair leg (5), and the buckle (52) is fastened with the clamping groove (41) after the chair is folded.

5. The folding chair capable of being folded and unfolded automatically as claimed in claim 4, wherein said slot (41) is a U-shaped slot provided at the front end (401) of the seat plate.