CN216256280U

CN216256280U - Gravity self-locking folding chair

Info

Publication number: CN216256280U
Application number: CN202122961435.0U
Authority: CN
Inventors: 陈礼斌; 孔庆磊; 蔡兴仪
Original assignee: CHANGZHOU QIAOYU TOURIST PRODUCTS CO LTD
Current assignee: CHANGZHOU QIAOYU TOURIST PRODUCTS CO LTD
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-12
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to the technical field of seats, and particularly provides a gravity self-locking folding chair which comprises two mirror-image-symmetric inclined strut mechanisms and a linkage mechanism connected between the two inclined strut mechanisms, wherein each inclined strut mechanism comprises two bottom frame rods and two mirror-image-symmetric inclined strut rods, each linkage mechanism comprises two linkage rods, the upper ends of the two inclined strut rods and the upper end of one linkage rod are hinged to a first connecting piece, and the lower ends of the linkage rods are hinged to a third connecting piece; the gravity self-locking folding chair further comprises a pressing mechanism, a cushion and two vertical rods with mirror symmetry, the second end parts of the two bottom frame rods are hinged to the positions, close to the lower ends, of the vertical rods, the pressing mechanism comprises two supporting rods, the two supporting rods are respectively supported on two sides of the cushion, when the folding chair is unfolded and the cushion bears heavy objects, the cushion of the folding chair is supported through the pressing mechanism, gravity borne by the cushion is transmitted to a first connecting piece, and the first connecting piece is pressed to enable the inclined supporting mechanism to be unfolded and keep a stable unfolding state.

Description

Gravity self-locking folding chair

Technical Field

The utility model relates to the technical field of folding chairs, in particular to a gravity self-locking folding chair.

Background

The folding chair is more and more used in public places by people because of having the functions of light weight, folding and the like, is convenient to move and saves space, and provides higher requirements for outdoor leisure furniture such as the folding chair and the like. Compared with the common chair, the structure of the folding rocking chair is designed to be more complex, meanwhile, the locking mechanism is required to lock the unfolded folding chair to keep the unfolded folding chair stable, the existing product can be folded and unfolded, but in the actual use process, the locking mechanism is complex in structure, the situation of locking failure can often occur, the folding chair is unstable in the use process, the potential safety hazard is easy to generate, when the folding chair is folded, the locking mechanism also needs to be released, and then the folding chair can be folded, so that the folding chair is quite inconvenient.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to solve the problem that the folding chair is complicated to unfold and fold, the utility model provides a gravity self-locking type folding chair to solve the problem.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a gravity self-locking folding chair comprises two mirror-image-symmetric inclined strut mechanisms and a linkage mechanism connected between the two inclined strut mechanisms, wherein each inclined strut mechanism comprises two bottom frame rods and two mirror-image-symmetric inclined strut rods, each linkage mechanism comprises two linkage rods which are mutually crossed and hinged, the upper ends of the two inclined strut rods and the upper end of one linkage rod are hinged to a first connecting piece, the parts, close to the lower ends, of the two inclined strut rods are hinged to first end parts of the two bottom frame rods respectively, and the lower ends of the linkage rods are hinged to a third connecting piece;

the gravity self-locking folding chair further comprises a pressing mechanism, a cushion and two vertical rods which are in mirror symmetry, wherein the first connecting piece is arranged on the vertical rods in a sliding mode, the second end parts of the two bottom frame rods are hinged to the positions, close to the lower ends, of the vertical rods, the pressing mechanism comprises two supporting rods, the two supporting rods are respectively supported on two sides of the cushion, the supporting rods are connected with the vertical rods, and when the gravity self-locking folding chair is unfolded and the cushion bears a heavy object, the gravity borne by the cushion is transmitted to the first connecting piece through the supporting rods.

Preferably, the upright rod is inserted into the stay and the stay is movable along the upright rod, and when the folding chair is unfolded and the seat cushion bears a heavy object, the bottom of the stay presses the first link.

Preferably, a buckle is arranged on the upright rod, the support rod is connected with the upright rod through the buckle, the support rod can move in the buckle, and when the folding chair is unfolded and the cushion bears heavy objects, the bottom of the support rod presses the first connecting piece.

Preferably, the first connecting piece is provided with a limiting groove, and the upper end of the inclined strut is hinged in the limiting groove.

Preferably, the lower end of the upright rod is fixed to the third link.

Preferably, the two sides of the seat cushion are connected with hanging strips, and the support rod is connected with the hanging strips through a fifth connecting piece and supports the hanging strips.

Preferably, the diagonal bracing mechanism further comprises a second connecting piece and a fourth connecting piece, the second connecting piece is fixed at the first end part of the bottom frame rod, the part of the diagonal bracing rod close to the lower end is hinged to the second connecting piece, the fourth connecting piece is fixed at the second end part of the bottom frame rod, and the part of the upright rod close to the lower end is hinged to the fourth connecting piece.

Preferably, the third connecting piece is provided with a supporting groove, and the lower end of the linkage rod is hinged in the supporting groove.

Preferably, the inclined strut device further comprises a foot plate, and the foot plate is fixed to the lower end of the inclined strut.

The folding chair has the beneficial effects that the first connecting piece, the diagonal bracing mechanism and the pressing mechanism are arranged, the cushion of the folding chair is supported by the pressing mechanism, the gravity borne by the cushion is transmitted to the first connecting piece, the first connecting piece is pressed to enable the diagonal bracing mechanism to be unfolded and to be kept in a stable unfolded state, the vertical rod is supported by the diagonal bracing mechanism to prevent the vertical rod from being inclined, the folding chair can be kept stable, when the folding frame needs to be folded, the first connecting piece can move upwards along the vertical rod only by moving the pressing mechanism away, and the folding chair is convenient to fold.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a first embodiment of a folding chair of the present invention;

FIG. 2 is a schematic structural view of a first folding chair according to the utility model in a disassembled state;

FIG. 3 is a schematic view of a folding chair according to an embodiment of the present invention, showing the structure of the bar when the bar is pulled up;

FIG. 4 is a partial schematic view of a first embodiment of a folding chair of the present invention in an unfolded state;

FIG. 5 is a schematic view of a portion of a folding chair according to the first embodiment of the present invention during folding;

FIG. 6 is a partial schematic view of a folding chair according to a first embodiment of the utility model in a folded configuration;

FIG. 7 is an enlarged view at A in FIG. 4;

fig. 8 is an enlarged view at B in fig. 4.

In the figure: 1. the device comprises a diagonal bracing mechanism, 2, a linkage mechanism, 3, a diagonal bracing, 4, an underframe rod, 5, a linkage rod, 6, a first connecting piece, 7, a third connecting piece, 8, an upright rod, 9, a second connecting piece, 10, a fourth connecting piece, 11, a limiting groove, 12, a cushion, 13, a supporting rod, 14, a hanging strip, 15, a fifth connecting piece, 16, a foot disc, 17 and a supporting groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 8, the present invention provides an embodiment of a gravity self-locking folding chair, comprising two mirror-image symmetric diagonal bracing mechanisms 1 and a linkage mechanism 2 connected between the two diagonal bracing mechanisms 1, wherein the diagonal bracing mechanism 1 comprises two bottom frame rods 4 and two mirror-image symmetric diagonal bracing rods 3, the linkage mechanism 2 comprises two mutually crossed and hinged linkage rods 5, the upper ends of the two diagonal bracing rods 3 and the upper end of one linkage rod 5 are hinged to a first connecting piece 6, the first connecting piece 6 is provided with a limiting groove 11, the upper end of the diagonal bracing rod 3 is hinged to the limiting groove 11, the diagonal bracing rod 3 is supported and guided by the limiting groove 11, so as to avoid the diagonal bracing rod 3 from being tilted in the using process, the first end of the bottom frame rod 4 is provided with a second connecting piece 9, the parts of the two diagonal bracing rods 3 close to the lower ends are hinged to the two second connecting pieces 9, the lower end of the linkage rod 5 is hinged to a third connecting piece 7, the gravity self-locking folding chair further comprises two mirror-image symmetrical vertical rods 8, the first connecting piece 6 is arranged on the vertical rod 8 in a sliding mode, the lower end of the vertical rod 8 is fixed on the third connecting piece 7, so that the first connecting piece 6 can be guided through the vertical rod 8 in the moving process, the second end of the underframe rod 4 is provided with a fourth connecting piece 10, and the fourth connecting piece 10 is hinged to the part, close to the lower end, of the vertical rod 8;

when the diagonal bracing mechanism 1 is in a folded state, the diagonal bracing mechanism is of a diamond structure, the first connecting piece 6 is located at the top end of the diamond structure, the two fourth connecting pieces 10 are located at the bottom end of the diamond structure, when the diagonal bracing mechanism 1 is unfolded, the first connecting piece 6 moves downwards to enable the two diagonal bracing rods 3 to be unfolded outwards, the diamond structure is changed into a triangular structure, the two bottom frame rods 4 form the bottom edge of the triangular structure, the two bottom frame rods 4 are located in the same plane and are arranged on the two sides of the vertical rod 8 in a staggered mode, the bottom frame rods 4 can form a stable base, the two diagonal bracing rods 3 form the two side edges of the triangular structure, and the first connecting piece 6 is located at the top end of the triangular structure.

The gravity self-locking folding chair further comprises a pressing mechanism and a seat cushion 12, when the gravity self-locking folding chair is unfolded and the seat cushion 12 bears a heavy object, for example, a user sits on the seat cushion 12, the pressing mechanism is used for transmitting the gravity borne by the seat cushion 12 to the first connecting piece 6, the pressing mechanism comprises two supporting rods 13, the two supporting rods 13 are respectively supported on two sides of the seat cushion 12, two sides of the seat cushion 12 are connected with hanging strips 14, and the supporting rods 13 are connected with the hanging strips 14 through fifth connecting pieces 15 and support the hanging strips 14;

the upright rod 8 is inserted into the supporting rod 13, the supporting rod 13 can move along the upright rod 8, the inserting mode is convenient for dismounting the supporting rod 13 and the upright rod 8 on one hand, and on the other hand, the contact area between the supporting rod 13 and the upright rod 8 is increased, so that the connection is more stable, when the gravity self-locking folding chair is unfolded and the cushion 12 bears a heavy object, the supporting rod 13 supports a point through the hanging belt 14, the bottom of the supporting rod 13 compresses the first connecting piece 6, the gravity borne by the cushion 12 is transmitted to the first connecting piece 6, and the unfolded gravity self-locking folding chair is more stable. When the gravity self-locking folding chair is folded, the cushion 12 is moved away to separate the support rod 13 from the first connecting piece 6, and then the two upright rods 8 are applied with force to enable the two upright rods 8 and the two first connecting pieces 6 to approach each other, so that the folding action can be completed.

The diagonal bracing mechanism 1 further comprises a foot disc 16, the foot disc 16 is fixed at the lower end of the diagonal bracing rod 3, and when the gravity self-locking folding chair is unfolded, the bottom end face of the foot disc 16 can be attached to the ground to support the unfolded gravity self-locking folding chair.

The utility model also provides an embodiment II of the gravity self-locking folding chair, which is different from the embodiment I in that: the vertical rod 8 is provided with a buckle, the support rod 13 is connected with the vertical rod 8 through the buckle, the support rod 13 can move in the buckle, the buckle can also enable the support rod 13 and the vertical rod 8 to be stably connected together, and when the gravity self-locking folding chair is unfolded and the seat cushion 12 bears a heavy object, the bottom of the support rod 13 compresses the first connecting piece 6.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a gravity is from locking-type folding chair which characterized in that: the device comprises two mirror-image-symmetric inclined strut mechanisms and a linkage mechanism connected between the two mirror-image-symmetric inclined strut mechanisms, wherein each inclined strut mechanism comprises two bottom frame rods and two mirror-image-symmetric inclined strut rods, each linkage mechanism comprises two linkage rods which are mutually crossed and hinged, the upper ends of the two inclined strut rods and the upper end of one linkage rod are hinged to a first connecting piece, the parts, close to the lower ends, of the two inclined strut rods are hinged to first end parts of the two bottom frame rods respectively, and the lower ends of the linkage rods are hinged to a third connecting piece;

2. A gravity self-locking folding chair as claimed in claim 1, wherein: the upright rod is inserted into the strut and the strut is movable along the upright rod, the bottom of the strut pressing against the first link when the folding chair is unfolded and the seat cushion is loaded with a weight.

3. A gravity self-locking folding chair as claimed in claim 1, wherein: the folding chair is characterized in that a buckle is arranged on the upright rod, the supporting rod is connected with the upright rod through the buckle, the supporting rod can move in the buckle, and when the folding chair is unfolded and the cushion bears a heavy object, the bottom of the supporting rod compresses the first connecting piece.

4. A gravity self-locking folding chair as claimed in claim 2, wherein: the first connecting piece is provided with a limiting groove, and the upper end of the inclined support rod is hinged in the limiting groove.

5. A gravity self-locking folding chair as claimed in claim 3, wherein: the first connecting piece is provided with a limiting groove, and the upper end of the inclined support rod is hinged in the limiting groove.

6. A gravity self-locking folding chair as claimed in claim 4 or 5, wherein: the lower end of the upright rod is fixed on the third connecting piece.

7. A gravity self-locking folding chair as claimed in claim 6, wherein: the two sides of the cushion are connected with hanging strips, and the support rod is connected with the hanging strips through a fifth connecting piece and supports the hanging strips.

8. A gravity self-locking folding chair as claimed in claim 7, wherein: the inclined strut mechanism further comprises a second connecting piece and a fourth connecting piece, the second connecting piece is fixed at the first end portion of the bottom frame rod, the part, close to the lower end, of the inclined strut is hinged to the second connecting piece, the fourth connecting piece is fixed at the second end portion of the bottom frame rod, and the part, close to the lower end, of the vertical rod is hinged to the fourth connecting piece.

9. A gravity self-locking folding chair as claimed in claim 8, wherein: and the third connecting piece is provided with a supporting groove, and the lower end of the linkage rod is hinged in the supporting groove.

10. A gravity self-locking folding chair as claimed in claim 9, wherein: still include the foot dish, the foot dish is fixed the lower extreme of diagonal brace.