CN216534552U

CN216534552U - Self-locking folding chair

Info

Publication number: CN216534552U
Application number: CN202122963343.6U
Authority: CN
Inventors: 陈礼斌; 孔庆磊; 李健健
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: 2022-05-17
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to the technical field of seats, in particular to a folding chair, which comprises two mirror-image-symmetric diagonal bracing mechanisms and a linkage mechanism connected between the two diagonal bracing mechanisms, wherein each diagonal bracing mechanism comprises two mirror-image-symmetric diagonal bracing rods and two mirror-image-symmetric chassis rods, the linkage mechanism comprises two mutually-crossed and hinged linkage rods, the upper ends of the two diagonal bracing rods and the upper end of one linkage rod are hinged to a first connecting piece, the lower ends of the two diagonal bracing rods are hinged to first end parts of the two chassis rods, the second end parts of the two chassis rods are hinged to a third connecting piece, the lower ends of the two linkage rods are respectively hinged to the two connecting rods, the self-locking folding chair further comprises a pressing mechanism, a cushion and two mirror-image-symmetric vertical rods, when the folding chair is unfolded and the cushion bears heavy objects, the cushion is supported by the pressing mechanism, and the gravity borne by the cushion is transmitted to the first connecting piece, and pressing the first connecting piece to enable the inclined strut mechanism to be unfolded and keep a stable unfolding state.

Description

Self-locking folding chair

Technical Field

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

Background

In recent years, people are keen on various outdoor camping or leisure, and the folding chair is popular because of the flexibility in use and the convenience in folding. The existing product can be folded and unfolded, but in the actual use process, the folding chair is usually locked by using a locking mechanism after being unfolded, and when the locking mechanism is locked, the situation of locking failure often occurs due to the complex structure, so that the folding chair is overturned in the use process, and particularly, potential safety hazards are generated when children use the folding chair.

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 easy to lock and fail after being unfolded, the utility model provides a self-locking folding chair to solve the problem.

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

the self-locking folding chair further comprises a pressing mechanism, a cushion and two upright rods with mirror symmetry, wherein the first connecting piece is arranged on the upright rods in a sliding mode, the pressing mechanism comprises two supporting rods which are respectively supported on two sides of the cushion, and when the folding chair is unfolded and the cushion bears heavy objects, the supporting rods are connected with the upright rods and transmit gravity borne by the cushion to the first connecting piece.

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 lower end of the linkage rod is hinged to a fourth connecting piece, the fourth connecting piece is fixed to the connecting rod, and the part, close to the lower end, of the upright rod is hinged to the connecting rod.

Preferably, the lower end of the upright rod is fixedly connected with the third connecting member.

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 brace mechanism further comprises a second connecting piece, and the part of the diagonal brace close to the lower end is hinged to the first end of the bottom frame rod through the second connecting piece.

Preferably, the diagonal bracing mechanism further comprises a foot disc, the foot disc is fixed to the lower end of the diagonal bracing rod, the second connecting piece is fixed to the first end portion of the bottom frame rod, and the portion, close to the lower end, of the diagonal bracing rod is hinged to the second connecting piece.

Preferably, the anti-tripping device further comprises an anti-tripping device and a locking pin, and the anti-tripping device and the locking pin are respectively arranged on the two first connecting pieces.

The folding chair has the advantages that the first connecting piece, the inclined strut mechanism and the pressing mechanism are arranged, a cushion of the folding chair is supported through 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 inclined strut mechanism to be unfolded and to be kept in a stable unfolding state, the straight upright rods are fixed through the inclined strut mechanism, the connecting rod is further arranged between the two upright rods, the upright rods can be reinforced through the connecting rod when the inclined strut mechanism is unfolded, when the folding frame needs to be folded, the first connecting piece can move upwards along the upright rods only by moving the pressing mechanism, and the folding chair is conveniently folded.

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 structural view showing a folding state of a first embodiment of a folding chair according to the present invention.

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 connecting rod, 10, a folding piece, 11, a fourth connecting piece, 12, a cushion, 13, a supporting rod, 14, a hanging strip, 15, a fifth connecting piece, 16, a second connecting piece, 17, an anti-falling buckle, 18 and a foot disc.

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 6, the present invention provides an embodiment of a self-locking folding chair, including two mirror-image symmetric diagonal bracing mechanisms 1 and a linkage mechanism 2 connected between the two diagonal bracing mechanisms 1, where the diagonal bracing mechanisms 1 include two mirror-image symmetric diagonal bracing rods 3 and two mirror-image symmetric underframe rods 4, the linkage mechanism 2 includes two mutually crossing 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 member 6, the lower ends of the two diagonal bracing rods 3 are respectively hinged to first end portions of the two underframe rods 4, and the second end portions of the two underframe rods 4 are hinged to a third connecting member 7, the self-locking folding chair further includes two mirror-image symmetric upright rods 8, the first connecting member 6 is slidably disposed on the upright rods 8, so that the first connecting member 6 can be guided by the upright rods 8 during movement;

the lower ends of the two linkage rods 5 are respectively hinged with the two connecting rods 9, the first end parts of the two connecting rods 9 are hinged through a doubling part 10, in the embodiment, the lower end of the linkage rod 5 is hinged with a fourth connecting part 11, the part, close to the lower end, of the upright rod 8 is hinged with the part, close to the second end part, of the connecting rod 9, the fourth connecting part 11 is fixed on the connecting rod 9 and located between the doubling part 10 and the upright rod 8, and the lower end of the upright rod 8 is fixedly connected with the third connecting part 7. After two connecting rods 9 expand, two connecting rods 9 interconnect make connecting rod 9 can straighten upright pole 8 and stabilize and support, avoid two upright poles 8 to be close to each other, when needs folding connecting rod 9, only need apply the effort of perpendicular to pole to fifty percent discount 10, realize the fifty percent discount of connecting rod 9 promptly.

When the diagonal bracing mechanism 1 is in a folded state, the diagonal bracing mechanism is of a rhombus structure, the first connecting piece 6 is located at the top end of the rhombus structure, the third connecting piece 7 is located at the bottom end of the rhombus 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 rhombus structure is changed into a triangular structure at the moment, 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 have included angles, the bottom frame rods 4 can form a stable base, the two diagonal bracing rods 3 form two side edges of the triangular structure, and the first connecting piece 6 is located at the top end of the triangular structure.

The self-locking folding chair further comprises a pressing mechanism for transferring the gravity experienced by the seat cushion 12 to the first connecting member 6, and the seat cushion 12, when the self-locking folding chair is unfolded and the seat cushion 12 carries a heavy object, for example a user sits on the seat cushion 12. In this embodiment, the pressing mechanism includes 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 the 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 vertical rod 8 is inserted into the supporting rod 13, the supporting rod 13 can move along the vertical rod 8, the vertical rod 8 and the supporting rod 13 are connected in an inserting mode, the connection between the vertical rod 8 and the supporting rod 13 is more stable, the structural strength of the self-locking folding chair is improved, when the self-locking folding chair is unfolded and the cushion 12 bears a heavy object, the supporting rod 13 supports the cushion 12 through the hanging strip 14, the first connecting piece 6 is pressed at the bottom of the supporting rod 13, the gravity borne by the cushion 12 is transmitted to the first connecting piece 6, and the unfolded self-locking folding chair is stable. When the self-locking folding chair is folded, the cushion 12 is moved away to separate the supporting rod 13 from the first connecting piece 6, the two upright rods 8 are applied with force to enable the two upright rods 8 and the two first connecting pieces 6 to be close to each other, so that the folding action can be completed, the folding chair further comprises an anti-tripping button 17 and a lock pin, the anti-tripping button 17 and the lock pin are respectively arranged on the two first connecting pieces, namely the anti-tripping button 17 is arranged on one of the first connecting pieces, the lock pin matched with the anti-tripping button 17 is arranged on the other connecting piece 17, and when the two first connecting pieces 6 are close to each other, the two first connecting pieces 6 are locked together through the anti-tripping button 17, so that the folding action is completed.

In this embodiment, the diagonal bracing mechanism further includes a second connecting member 16 and a foot disc 18, the foot disc 18 is fixed at the lower end of the diagonal bracing rod 3, the second connecting member 16 is fixed at the first end of the bottom frame rod 4, a portion of the diagonal bracing rod 3 near the lower end is hinged with the second connecting member 16, when the self-locking folding chair is unfolded, the bottom end face of the foot disc 18 can be attached to the ground to support the unfolded self-locking folding chair.

The utility model also provides an embodiment II of the 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 self-locking folding chair is unfolded and the seat cushion 12 bears a heavy object, the bottom of the support rod 13 presses the first connecting piece 6.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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. A self-locking folding chair is characterized in that: the two-dimensional folding type chassis 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 mirror-image-symmetric inclined strut rods and two mirror-image-symmetric chassis 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 lower ends of the two inclined strut rods are respectively hinged to first end parts of the two chassis rods, the second end parts of the two chassis rods are hinged to a third connecting piece, the lower ends of the two linkage rods are respectively hinged to two connecting rods, and the first end parts of the two connecting rods are hinged to a folding piece;

2. The 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. The self-locking folding chair as claimed in claim 1, wherein: the folding chair is characterized in that a buckle is arranged on the vertical rod, the supporting rod is connected with the vertical 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. The self-locking folding chair as claimed in claim 2, wherein: the lower end of the linkage rod is hinged to a fourth connecting piece, the fourth connecting piece is fixed to the connecting rod, and the part, close to the lower end, of the vertical rod is hinged to the connecting rod.

5. A self-locking folding chair as claimed in claim 3, characterized in that: the lower end of the linkage rod is hinged to a fourth connecting piece, the fourth connecting piece is fixed to the connecting rod, and the part, close to the lower end, of the vertical rod is hinged to the connecting rod.

6. The self-locking folding chair as claimed in claim 4 or 5, wherein: the lower end of the upright rod is fixedly connected with the third connecting piece.

7. The self-locking folding chair as claimed in claim 6, wherein: 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.

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

9. The self-locking folding chair as claimed in claim 8, wherein: the inclined strut mechanism further comprises a foot disc, the foot disc is fixed to the lower end of the inclined strut, the second connecting piece is fixed to the first end portion of the bottom frame rod, and the portion, close to the lower end, of the inclined strut is hinged to the second connecting piece.

10. The self-locking folding chair as claimed in claim 9, wherein: the anti-tripping device further comprises an anti-tripping device and a lock pin, wherein the anti-tripping device and the lock pin are respectively arranged on the two first connecting pieces.