Folding Chair

Abstract

The present utility patent is a folding chair, comprises a back plate; a seat plate, which capable of flipping up towards the back plate, is hinged at the front side of the back plate; a side rear plate, which capable of flipping inward towards the seat plate after the seat plate flipping up, is hinged at the left and right sides of the back plate; a side front plate, which capable of flipping towards the side rear plate after the side rear plate flipping inward, is hinged at the front side of the side rear plate; a front plate, which capable of flipping towards the side front plate after the side front plate flipping towards the side rear plate and whose left and right ends hinged respectively at the front end of left and right sides of the side front plate; and a locking structure, which capable of locking the front plate and the seat plate after the seat plate flipping down, is arranged between the front plate and the seat plate. As unfolding the folding chair, the stability and safety is improved by the locking structure, thereby preventing children from falling down due to shaking.

Description

FIELD OF THE INVENTION

The present utility patent relates to the technical field of chair, in particular to a folding chair.

BACKGROUND OF THE INVENTION

Folding chair is a chair with folding function, which is loved by users as its advantage in easy to move and foldable to save space. However, existed folding chairs on the market keep unfolding condition just by friction at the folding connecting structure or men sitting on the chairs instead of using lock structure. Therefore, it is unstable and not safe because of lacking lock structure for children as most of them are lively and active, when they move around on the chair, these chairs will shake and make children fall down.

For example, there is a patent named folding chair, whose patent application number is 201510071855.8. It includes two side stands, several connecting piece an a cushion board. The two side stands are arranged paralleled at intervals and each one has a first support component respectively, and a second support component extends upwards from one end of the first support component; each connecting piece comprises two first combination components which are pivoted one to one on the two sides of the two side stands and there is a first fold line at the pivot joint of the two combination components; the cushion board comprises two second combination components which are pivoted and there is a second fold line at the pivot joint of the two second combination components; the two second combination components of the cushion board are pivoted one to one on the two side frames with their pivotal components and each one comprises a pivotal component respectively. The overall structure of the folding chair is unstable because it is not locked. The folding char is prone to shaking and causing children to fall, which affects the safety to use.

The present utility patent is made based on above situation.

DETAILED DESCRIPTION

Aiming at the defects and deficiencies of the prior art, the present utility patent provides a folding chair, which is more stable by locking front plate and seat plate in unfolding condition.

The present utility patent is realized by the following technical resolutions:

A folding chair, comprises a back plate; a seat plate, which capable of flipping up towards the back plate, is hinged at the front side of the back plate; a side rear plate, which capable of flipping inward towards the seat plate after the seat plate flipping up, is hinged at the left and right sides of the back plate; a side front plate, which capable of flipping towards the side rear plate after the side rear plate flipping inward, is hinged at the front side of the side rear plate; a front plate, which capable of flipping towards the side front plate after the side front flipping towards the side rear plate and whose left and right ends hinged respectively at the front end of left and right sides of the side front plate; and a locking structure, which capable of locking the front plate and the seat plate after the seat plate flipping down, is arranged between the front plate and the seat plate.

A folding chair as above, the locking structure comprises a first locked component under the seat plate and a lock buckle sliding connected to rear side of the front plate; the first locked component comprises a first socket and a first locked is arranged in the lock buckle to slide and insert into the first socket with the lock buckle.

A folding chair as above, a spring is arranged between the lock buckle and the front plate to push the lock buckle to make the first locked block insert into the first socket.

A folding chair as above, the first locked block comprises a first bevel connected to the first locked component and makes it push the first locked block.

A folding chair as above, the front plate comprises a slide groove for the lock buckle to slid; the lock buckle comprises a limit hole for a mounting column arranged in the slide groove to pass through, and a limit block is detachable installed in the mounting column and used to prevent the lock buckle from moving out the mounting column.

A folding chair as above, the lock buckle comprises a pull piece for pulling the lock buckle and a notch for fingers to pass through is arranged in the position of the front plate corresponding to the pull piece.

A folding chair as above, the lock buckle also comprises a second locked block, a second locked component is arranged inside the side front plate corresponding to position of the second locked block and a second socket is arranged in the second locked component for the second locked block to inert into.

A folding chair as above, the second locked block comprises a second bevel connected to the second locked component to make it push the second locked block.

A folding chair as above, both sides of the back plate comprises a forward protruding connecting component and the connecting component and the back plate form a storage area capable of accommodating the seat plate.

A folding chair as above, a supporting plate buckled on the side front plate; a first bump arranged above the side front plate and buckled to a buckle arranged on the supporting plate and a second bump arranged in both sides of the back plate and bucked to the buckle.

Compared with prior art, the present utility patent has following advantages:

• • 1. There is a locking structure between a front plate and a seat plate for locking them when the seat plate flips down. As unfolding the folding chair, the stability and safety is improved by the locking structure, thereby preventing children from falling down due to shaking.
  • 2. A first bevel is arranged in a first locked block. In the process of a seat plate turns over and pressed against the front plate, a first locked component pushes a lock buckle according to the first bevel. After the seat plate fits in with the front plate perfectly, a spring pushes the lock buckle back to make the first locked block insert into a first socket to realize self-locking conveniently, instead of men push the first locked block into the first socket.
  • 3. A second bevel is arranged in a second locked block. In the process of the front plate presses against a side front plate, a second locked component pushes a lock buckle according to the second bevel. After the front plate fits in with the side front plate perfectly, a spring pushes the lock buckle back to make the second locked block insert into a second socket to realize self-locking conveniently, instead of men push the second locked block into the second socket. It is convenient to move a folding chair by locking the front plate and the side front plate meantime to prevent the chair from unfolding automatically.
  • 4. Both sides of a back plate comprises a forward protruding connecting component and the connecting component and the back plate form a storage area capable of accommodating the seat plate, which makes a folding chair more compact.
  • 5. A supporting plate is buckled on the side front plate, which capable of placing some tablewares or food. A second bump buckled to the buckle is arranged both sides of the back plate. When the chair is in folding condition, the supporting plate is buckled to the back plate.

DESCRIPTION OF THE DRAWINGS

The specific embodiment of the present utility patent is detailed description in conjunction with drawings:

FIG. 1 is a structural diagram of the present utility patent in unfolding condition;

FIG. 2 is a structural diagram of the present utility patent in folding condition;

FIG. 3 is a exploded diagram of the present utility patent unfolding condition;

FIG. 4 is a structure diagram of the locked front plate and seat plate of the present utility patent;

FIG. 5 is a partial enlargement view diagram of A in FIG. 4;

FIG. 6 is a structural diagram of the lock buckle installed on the front plate of the present utility patent;

FIG. 7 is a exploded diagram of the lock buckle and the front plate of the present utility patent;

FIG. 8 is a structure diagram of the lock buckle of the present utility patent;

FIG. 9 is a structure diagram of the side front plate of the present utility patent;

FIG. 10 is a sectional view of the present utility patent in folding condition;

FIG. 11 is a partial enlargement view diagram of B in FIG. 10;

FIG. 12 is a structural diagram of the folding chair in unfolding condition and the supporting plate.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

In order to enable those skilled in the art to better clearly understand the technical solution of the present utility patent, the present utility patent will be further described in detail below in conjunction with the drawings and specific embodiments:

The folding chair as shown from FIGS. 1 to 12, comprises a back plate 1; a seat plate 2, which capable of flipping up towards the back plate 1, is hinged at the front side of the back plate 1; a side rear plate 3, which capable of flipping inward towards the seat plate 2 after the seat plate 2 flipping up, is hinged at the left and right sides of the back plate 1; a side front plate 4, which capable of flipping towards the side rear plate 3 after the side rear plate 3 flipping inward, is hinged at the front side 5 of the side rear plate 3; a front plate 5, which capable of flipping towards the side front plate 4 after the side front plate 4 flipping towards the side rear plate 3 and whose left and right ends hinged respectively at the front end of left and right sides of the side front plate 4; and a locking structure, which capable of locking the front plate 5 and the seat plate 2 after the seat plate 2 flipping down, is arranged between the front plate 5 and the seat plate 2. As unfolding the folding chair, the stability and safety is improved by the locking structure, thereby preventing children from falling down due to shaking.

The locking structure comprises a first locked component 21 under the seat plate 2 and a lock buckle 22 sliding connected to rear side of the front plate 5; the first locked component 21 comprises a first socket 211 and a first locked block 221 is arranged in the lock buckle 22 to slide and insert into the first socket 211 with the lock buckle 22. The stability of the folding chair is improved by making the first locked block 221 insert into the first socket 211 to lock the front plate 5 and the seat plate 2.

A slide groove which comprises a mounting column 52 is arranged in the front plate 5 for a lock buckle 22 to slide. The lock buckle 22 comprises a limit hole 223 for the mounting column 52 to pass through which includes a detachable arranged limit block 53 for prevent the lock buckle 22 from going out the mounting column 52. In a embodiment, the limit hole 223 is a long hole along the length of the slide groove 51, a threaded hole is arranged in one end of the mounting column 52 and the limit block 53 is fixed installed in the mounting column 52 by screws.

A spring 222 is arranged between the lock buckle 22 and the front plate for pushing the lock buckle 22 to make a first locked block 221 insert into a first socket 211 to realize self-locking conveniently, instead of men push the first locked block 221 into the first socket.

A first bevel 2211 is arranged in the first locked block 221. In the process of the seat plate 2 presses against the front plate 5, the first locked component 21 pushes the lock buckle 22 according to the first bevel 2211. When the seat plate 2 fits in with the front plate 5 perfectly, the spring 222 pushes the lock buckle 22 back to make the first locked block 221 insert into the first socket 211 to realize self-locking conveniently, instead of men push the first locked block 221 into the first socket 211.

The lock buckle 22 comprises a pull piece 224 for pulling the lock buckle 22 and position of the front plate 5 corresponding to the pull piece 224 comprises a notch 54 for fingers to pass through. The locking structure is unlocked when the pull piece 224 is directly pulled to make the first locked block 221 go out the first socket 211.

In a embodiment, the block buckle 22 comprises a storage cavity 20 which connects to the limit hole 223 and one end of the spring 222 is abut to the mounting column 52 and the other end is abut to the side wall of the storage cavity 20.

The block buckle 22 comprises a second locked block 225, the position of second locked block 225 according to the front of the seat plate 2 comprises a second locked component 41 which includes a second socket 411 for the second locked block 225 to insert into. A second bevel 2251 is arranged in the second locked block 225 which connects to the second locked component 41 and makes it push the second locked block 225.

In the process of the front plate 5 presses against the side front plate 4, the second locked component 41 pushes the lock buckle 22 according to the second bevel 2251. When the front plate 5 and the side front plate 4 folds into place, the spring 222 pushes the lock buckle 22 back to make the second locked block 225 insert into the second socket 411 to realize self-locking, which is convenient to move a folding chair by locking structure to prevent the chair from unfolding automatically. It is unlocked by pulling the pull piece 224 directly to make the second locked block 225 go out the second socket 411.

Both sides of the back plate 1 comprises a forward protruding connecting component 11 and the connecting component 11 and the back plate 1 form a storage area 111 capable of accommodating the seat plate 2, which makes a folding chair more compact.

A folding chair as above, a supporting plate buckled on the side front plate; a first bump arranged above the side front plate and buckled to a buckle arranged on the supporting plate and a second bump arranged in both sides of the back plate and bucked to the buckle.

The supporting plate 7 is installed in the side front plate 4, when the folding chair is in unfolding condition, it has a function of dining table to place some tablewares and food in the supporting plate 7. There is no need to carry the supporting plate 7 separately, as it is buckled to the back plate 1 when the folding chair is in unfolding condition by a second bump 8 bucked to the buckle 71 in both sides of the back plate 1.

A lifting handle 9 is arranged above the back plate 1 for lifting the folding chair conveniently, and a lifting handle hole 91 is arranged in the lifting handle 9 for fingers to pass through and grip on the lifting handle 9.

Claims

1. A folding chair, characterized in comprising a back plate 1; a seat plate 2, which capable of flipping towards the back plate 1, is hinged at the front side of the back plate 1; a side rear plate 3, which capable of flipping inward towards the seat plate 2 after the seat plate 2 flipping up, is hinged at the left and right side of the back plate 1; a side front plate 4, which capable of flipping towards the side rear plate 3 after the side rear plate 3 flipping inward, is hinged at the front side of the side front plate 3; a front plate 5, which capable of flipping towards the the side front plate 4 after the side front plate 4 flipping towards the side rear plate 3 and whose left and right ends are hinged respectively at the front end of the left and right sides of the side front plate 4; and a locking structure, which capable of locking the front plate 5 and the seat plate 2 after the seat plate 2 flipping down.

2. The folding chair according to claim 1, characterized in that the locking structure comprises a first locked component 21 under the seat plate 2 and a lock buckle 22 sliding connected to rear side of the front plate 5; the first locked component 21 comprises a first socket 211 and a first locked block 221 is arranged in the lock buckle 22 to slide and insert into the first socket 211 with the lock buckle 22

3. The folding chair according to claim 2, characterized in that a spring 222 is arranged between the lock buckle 22 and the front plate 5 to push the lock buckle 22 to make the first locked block 221 insert into the first socket 211.

4. The folding chair according to claim 3, characterized in that the first locked block 221 comprises a first bevel 2211 connected to the first locked component 21 and makes it push the first locked block 221.

5. The folding chair according to claim 4, characterized in that the front plate 5 comprises a slide groove 51 for the lock buckle 22 to slid; the lock buckle 22 comprises a limit hole 223 for a mounting column 52 arranged in the slide groove 51 to pass through; a limit block 53 is detachable installed in the mounting column 52 and used to prevent the lock buckle 22 from moving out the mounting column 52.

6. The folding chair according to claim 5, characterized in that the lock buckle 22 comprises a pull piece 224 for pulling the lock buckle 22 and a notch 54 for fingers to pass through is arranged in the position of the front plate 5 corresponding to the pull piece 224.

7. The folding chair according to claim 3, characterized in that the lock buckle 22 also comprises a second locked block 225, a second locked component 41 is arranged inside the side front plate 4 corresponding to position of the second locked block 225 and a second socket 411 is arranged in the second locked component 41 for the second locked block 225 to inert into.

8. The folding chair according to claim 7, characterized in that the second locked block 225 comprises a second bevel 2251 connected to the second locked component 41 to make it push the second locked block 225.

9. The folding chair according to claim 1, characterized in that both sides of the back plate 1 comprises a forward protruding connecting component 11 and the connecting component 11 and the back plate 1 form a storage area 111 capable of accommodating the seat plate 2.

10. The folding chair according to claim 1, characterized in that a supporting plate 7 buckled on the side front plate 4; a first bump 42 arranged above the side front plate 4 and buckled to a buckle 71 arranged on the supporting plate 7 and a second bump 8 arranged in both sides of the back plate 1 and bucked to the buckle 71.