CN212165376U

CN212165376U - Turnover folding chair

Info

Publication number: CN212165376U
Application number: CN202020376819.9U
Authority: CN
Inventors: 杨建中
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-12-18
Anticipated expiration: 2030-03-23

Abstract

The utility model discloses a convertible folding chair, include: the front support, the rear support, the seat frame and the middle shaft connecting piece; the upper part of the front support is hinged and fixed with the upper part of the rear support, and the middle part of the rear support is hinged and fixed with the tail part of the seat frame; the middle part of the front support is provided with a middle shaft tube, the seat frame is provided with an unfolding limiting block and a middle shaft piece, the middle shaft piece is positioned between the unfolding limiting block and the tail part of the seat frame, and two ends of the middle shaft connecting piece are respectively hinged between the middle shaft tube and the middle shaft piece; when the folding chair is opened, the unfolding limit block is pressed on the central shaft tube, and the central shaft connecting piece limits the seat frame, the front support and the rear support upwards from the head end to the tail end of the seat frame. The utility model is completely opposite to the original folding chair in the opening and folding modes, namely, the folding chair is folded by pressing the seat frame downwards and the folding chair is opened by lifting the seat frame upwards; the folding chair has the advantages that the seat frame is positioned below the folding chair when the folding chair is folded, the whole gravity center of the folding chair is low, the folding chair can be independently erected without support, the whole size is small, the weight is light, the arrangement is neat, and the carrying is convenient.

Description

Turnover folding chair

Technical Field

The utility model relates to a folding chair technical field, concretely relates to convertible folding chair.

Background

The existing common folding chair in the market is mostly composed of a front support, a rear support and a seat frame, wherein the front support, the rear support and the seat frame are hinged in pairs; when in use, the seat frame is pressed downwards to be rotated by 90 degrees from the vertical state and laid flat; when the seat frame is folded, the seat frame is lifted upwards to be rotated by 90 degrees from a horizontal state to be in a vertical folding state.

The above-mentioned mode of opening, packing up of current folding chair leads to the whole focus height after packing up of current folding chair, can't erect alone when unsupported, leads to it to put untidy, carries inconvenient, whole size big.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the utility model provides a convertible folding chair, which can change the opening and folding modes of the original folding chair, and when the folding chair is folded, the seat frame is pulled obliquely upwards to press the seat frame downwards along the trend, so that the seat frame rotates 90 degrees from the horizontal state to be in a vertical folding state; when in use, the seat frame is lifted upwards and pushed backwards to the end along the trend, so that the seat frame is rotated by 90 degrees from the vertical state and is laid flat.

The utility model discloses a convertible folding chair, include: the front support, the rear support, the seat frame and the middle shaft connecting piece;

the upper part of the front support is hinged and fixed with the upper part of the rear support, and the middle part of the rear support is hinged and fixed with the tail part of the seat frame; the middle part of the front support is provided with a middle shaft tube, the seat frame is provided with an unfolding limiting block and a middle shaft piece, the middle shaft piece is positioned between the unfolding limiting block and the tail part of the seat frame, and two ends of the middle shaft connecting piece are respectively hinged between the middle shaft tube and the middle shaft piece;

when the folding chair is opened, the unfolding limiting block is pressed on the central shaft tube, and the central shaft connecting piece limits the seat frame, the front support and the rear support upwards from the head end to the tail end of the seat frame.

As a further improvement of the utility model, the front support is a rectangular frame structure, and the rear support is a U-shaped frame structure with an upper opening.

As a further improvement, the upper portion of the front support is provided with a rear support shaft, and the upper end of the rear support is correspondingly hinged on the rear support shaft.

As a further improvement, the mid-mounting of back-support has seat frame rear axle tube, seat frame rear axle spare is installed to the afterbody of seat frame, seat frame rear axle spare articulates on the seat frame rear axle tube.

As a further improvement of the utility model, the seat frame rear axle element is an L-shaped element.

As a further improvement of the utility model, a retraction limiting pipe parallel to the central shaft pipe is installed at the middle lower part of the front support, and a limiting part is installed on the seat frame corresponding to the retraction limiting pipe; after the folding chair is folded, the limiting piece is clamped in the folding limiting pipe.

As a further improvement, the front support foot margin is installed to the bottom of front support, the back support foot margin is installed to the bottom of back support.

Compared with the prior art, the beneficial effects of the utility model are that:

the turnover folding chair of the utility model changes the opening and folding mode of the original folding chair, and when the folding chair is folded, the seat frame is pressed downwards, so that the seat frame rotates 90 degrees from the horizontal state to be in a vertical folding state; when in use, the seat frame is lifted upwards to be rotated by 90 degrees from the vertical state and laid flat; the utility model discloses the above-mentioned mode of opening, packing up of folding chair makes the folding chair seat frame be located the below when packing up, makes its whole focus low, can erect alone when not depending on, and whole size is little, and light in weight puts neatly, takes the line convenience.

Drawings

FIG. 1 is a state view of a fully opened folding chair according to an embodiment of the present invention;

FIG. 2 is another state view of the fully opened folding chair according to one embodiment of the present invention;

FIG. 3 is an intermediate state view of a folding chair according to one embodiment of the present invention from fully open to stowed or from stowed to fully open;

FIG. 4 is a state diagram of the fully collapsed folding chair according to one embodiment of the present invention;

FIG. 5 is another state diagram of the fully collapsed folding chair according to one embodiment of the present invention;

fig. 6 is a matching view of the front support, the rear support and the middle shaft connecting piece disclosed in one embodiment of the present invention;

fig. 7 is a schematic view of a front brace according to an embodiment of the present invention;

fig. 8 is a schematic view of a back support according to an embodiment of the present invention;

fig. 9 is a schematic view of a seat frame according to an embodiment of the present invention;

fig. 10 is a schematic view of a bottom bracket connector according to an embodiment of the present invention.

In the figure:

10. front bracing; 11. a central shaft tube; 12. retracting the limit pipe; 13. a back support shaft; 14. front supporting ground feet; 20. back bracing; 21. a seat frame rear axle tube; 22. a rear support leg; 30. a seat frame; 31. a seat frame rear shaft member; 32. a middle shaft member; 33. a limiting member; 34. unfolding a limiting block; 40. middle shaft connecting piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The invention is described in further detail below with reference to the accompanying drawings:

as shown in fig. 1 and 2, the utility model provides a turnover folding chair, which comprises: the front support 10, the rear support 20, the seat frame 30 and the middle shaft connecting piece 40; wherein the content of the first and second substances,

as shown in fig. 1, 2 and 7, the utility model discloses a fore-stock 10 is the rectangular frame structure, and back stay axle piece 13 is installed on the upper portion of fore-stock 10, mid-mounting has two central siphon 11 that are parallel to each other and packs up spacing pipe 12, the fore-stock lower margin 14 is installed to the bottom, central siphon 11 with pack up spacing pipe 12 and rectangular frame's minor face parallel arrangement, pack up spacing pipe 12 and be located between central siphon 11 and fore-stock lower margin 14, the width of fore-stock lower margin 14 guarantees that it can erect and place the folding chair. Further, the utility model discloses a back stay shaft member 13 is installed respectively on the long limit of rectangular frame, and back stay shaft member 13 is the U-shaped spare. Furthermore, the utility model discloses a front support 10, central siphon 11, pack up spacing pipe 12, back support shaft 13 are fixed as a whole, can adopt bolted connection or welded fastening, preferably welded fastening.

As shown in fig. 1, 2 and 8, the rear support 20 of the present invention is a U-shaped frame structure with an upper opening, and two open ends of the U-shaped frame are correspondingly hinged to two rear support shafts 13 of the front support 10; the middle part of the back support 20 is provided with a seat frame back axle tube 21, and the bottom of the back support 20 is provided with a back support ground foot 22. Further, the utility model discloses a back support 20, seat frame rear axle tube 21 fix to a whole, can adopt bolted connection or welded fastening, preferably welded fastening.

As shown in fig. 1, 2 and 9, the seat frame 30 of the present invention sequentially has a limiting member 33, an expansion limiting member 34, a middle shaft member 32 and a seat frame rear shaft member 31 from the head to the tail, and the installation manner can be bolted or welded, preferably welded and fixed as a whole. The limiting piece 33 on the seat frame 30 of the utility model is used for matching with the retracting limiting tube 12 on the front support 10, so that the limiting piece 33 is blocked in the retracting limiting tube 12 after the folding chair is retracted; the bottom bracket 32 is hinged to one end of the bottom bracket connector 40 shown in fig. 10, the seat frame rear 31 is hinged to the seat frame rear axle tube 21 of the back support 20, and the seat frame rear 31 is an L-shaped member.

Based on the structure of the front support 10, the rear support 20, the seat frame 30 and the middle shaft connecting piece 40, the utility model discloses the installation relation of front support 10, rear support 20, seat frame 30 and middle shaft connecting piece 40 is:

as shown in fig. 1, 2 and 6, the upper part of the front support 10 of the utility model is hinged and fixed with the upper end of the rear support 20 through the rear support shaft 13, when the folding chair is folded, the front support 10 and the rear support 20 are arranged side by side; when the folding chair is opened, the front support 10 and the rear support 20 are supported in a herringbone shape.

The utility model discloses the afterbody of seat frame 30 passes through seat frame rear axle spare 31 and the articulated fixed of seat frame rear axle tube 21 of back support 20, and above-mentioned fixed mode makes seat frame 30 can overturn on back support 20. In order to ensure that the seat frame 30 is turned to open the front support 10 and the rear support 20, the two ends of the middle shaft connecting member 40 are respectively hinged between the middle shaft tube 11 and the middle shaft member 32. As shown in fig. 1 and 2, when the folding chair is opened, the unfolding stopper 34 presses on the bottom bracket tube 11, the bottom bracket assembly 32 is located behind the bottom bracket tube 11, the bottom bracket connector 40 is inclined upward from the head end to the tail end of the seat frame 30 (from the bottom bracket tube 11 end to the bottom bracket assembly 32 end) to limit the seat frame 30, the front support 10 and the rear support 20, so as to prevent the seat frame 30, the front support 10 and the rear support 20 from rotating continuously, and fix the position relationship of the seat frame 30, the front support 10 and the rear support 20, so that the seat frame 30 is in a horizontal state.

Furthermore, the folding mode of the existing folding chair is to lift the seat frame upwards, so that the seat frame is leaned against the upper part of the front support to be folded; the folding mode needs the front support to be higher, and the height of the front support is not lower than the height of the seat frame after the seat frame is folded upwards; resulting in a high height and heavy weight folding chair. And, the utility model discloses changed the upset mode of traditional folding chair, the folding chair is packed up in the upset downwards to can reduce the design height that props before, thereby make folding chair's overall dimension little, light in weight.

Based on the installation relationship among the front support 10, the rear support 20, the seat frame 30 and the middle shaft connecting piece 40, the utility model discloses the method of opening and packing up of folding chair is:

in the initial state, the folding chair is in the opening state shown in figures 1 and 2; at this time:

step 1, pulling the seat frame 30 forward and upward to separate the unfolding limit block 34 from the bottom bracket tube 11 and make the bottom bracket connector 40 rotate from the oblique upward direction to the vertical upward direction;

step 2, after the middle shaft connecting piece 40 rotates to the vertical state, the seat frame 30 is pressed downwards, as shown in fig. 3; at this time, the middle shaft connecting piece 40 rotates from vertical upward 180 degrees to vertical downward, the middle shaft connecting piece 40 turns downward 90 degrees, the front support 10 and the rear support 20 are driven to be gathered by the herringbone support, and the folding is as shown in fig. 4 and 5.

In the initial state, the folding chair is in the folded state shown in fig. 4 and 5; at this time:

and (5) performing the reverse operation of the steps to open the folding chair.

The utility model has the advantages that:

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A convertible folding chair, comprising: the front support, the rear support, the seat frame and the middle shaft connecting piece;

2. The flip-up folding chair according to claim 1, wherein said front support is a rectangular frame structure and said rear support is a U-shaped frame structure having an open top.

3. The convertible deckchair of claim 1, wherein a back support shaft is mounted on the upper portion of said front support, and the upper end of said back support is correspondingly hinged to said back support shaft.

4. The convertible folding chair of claim 1, characterized in that a seat frame rear axle tube is installed at the middle part of the back support, a seat frame rear axle piece is installed at the tail part of the seat frame, and the seat frame rear axle piece is hinged on the seat frame rear axle tube.

5. The flip style folding chair of claim 4 wherein said seat frame rear axle is an L-shaped piece.

6. The convertible folding chair according to claim 1, characterized in that a retraction limiting tube parallel to the central tube is mounted at the middle lower part of the front support, and a limiting member is mounted on the seat frame corresponding to the retraction limiting tube; after the folding chair is folded, the limiting piece is clamped in the folding limiting pipe.

7. The convertible folding chair of claim 1, wherein a front support foot is mounted to a bottom of the front support and a rear support foot is mounted to a bottom of the rear support.