CN215874026U

CN215874026U - Folding chair

Info

Publication number: CN215874026U
Application number: CN202122371716.0U
Authority: CN
Inventors: 朱晓辉; 郑雪峰
Original assignee: Zhejiang Sunshine Leisure Products Co ltd
Current assignee: Zhejiang Sunshine Leisure Products Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-22
Anticipated expiration: 2031-09-28

Abstract

The utility model relates to a folding chair, which comprises a central shaft tube, foot tubes, connecting tubes, foot tube connecting pieces, connecting tube sliding blocks and a seat surface assembly, wherein the central shaft tube is arranged on the upper surface of the seat surface assembly; the seat surface assembly is fixed at the top of the middle shaft tube, and the connecting tube sliding block is slidably sleeved on the middle shaft tube; the foot tube connecting piece is axially and fixedly arranged on the central shaft tube and is positioned between the connecting tube sliding block and the seat surface assembly; one end of the foot tube is hinged on the foot tube connecting piece; one end of the connecting pipe is hinged on the connecting pipe sliding block, and the other end of the connecting pipe is hinged on the foot pipe. When the folding chair is unfolded for use, the connecting pipe sliding block is positioned below the central shaft pipe, and a certain angle is kept through the foot pipe connecting piece and other feet, so that the folding chair is supported; when needs are accomodate, the connecting pipe slider slides along central siphon and goes up to move, drives one end of foot pipe connecting piece and moves upward, and then drives the foot pipe and draws in to the central siphon direction. The folding chair is convenient to fold and is not easy to clamp. The top seat surface assembly fixed on the middle shaft tube can rotate to realize the function of the swivel chair.

Description

Folding chair

Technical Field

The utility model relates to the technical field of seats, in particular to a folding chair.

Background

The folding chair is a common chair in daily life, and can be folded and contracted for convenient storage and carrying. The folding process of the existing folding chair is still complex, and the good balance between the comfort and the portability can not be realized. For example, a foldable chair described in publication No. CN203538799U has a large connecting member in the middle, and the leg tubes are connected to the connecting member by elastic ropes, so that folding requires pulling out the tube members from the connecting member, operating one by one, unfolding the tube members, and placing the tube members into corresponding holes of the connecting member, which is relatively cumbersome, and the seat surface is fixed and non-rotatable. For example, in the folding chair disclosed in the publication No. CN106714619, although the seat surface can be rotated for use, the tube connections between the tubes and the central rotating connecting member are connected by the elastic cord, and the folding and unfolding processes are still complicated. Therefore, how to make the folding chair more convenient to store and unfold is a technical problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a folding chair to address the above problems.

A folding chair comprises a central shaft tube, foot tubes, connecting tubes, foot tube connecting pieces, connecting tube sliding blocks and a seat surface assembly; the seat surface assembly is fixed at the top of the middle shaft tube, and the connecting tube sliding block is slidably sleeved on the middle shaft tube; the foot tube connecting piece is axially and fixedly arranged on the central shaft tube and is positioned between the connecting tube sliding block and the seat surface assembly; one end of the foot tube is hinged on the foot tube connecting piece; one end of the connecting pipe is hinged on the connecting pipe sliding block, and the other end of the connecting pipe is hinged on the foot pipe; when the connecting pipe slider shifts up along the central axis pipe, the connecting pipe drives the foot pipe to be folded towards the central axis pipe.

Further, the seat surface assembly comprises a seat surface folding piece, a back tube and a seat tube, wherein the back tube and the seat tube are arranged on the seat surface folding piece, and the seat surface folding piece is fixed at the top of the middle shaft tube.

Furthermore, the back tube and the seat tube are respectively hinged in a limiting groove on the seat surface folding piece in a preset angle manner so as to form the upper half part of the seat with a specific angle.

Furthermore, a middle hole is formed in the center of the seat surface furling piece, a riveting hole communicated with the middle hole is formed in the side wall of the seat surface furling piece, and the middle shaft tube is inserted into the middle hole and fixedly connected with a rivet in the riveting hole.

Furthermore, the connecting pipe sliding block and the foot pipe connecting piece are both provided with rotating holes, and the central axis pipe can be inserted into the rotating holes in a self-rotating manner; when the folding chair is unfolded, the bottom surface of the seat surface furling piece is abutted against the top surface of the foot tube connecting piece, so that the central shaft tube is axially fixed with the connecting tube sliding block and the foot tube connecting piece respectively.

Furthermore, the position, which is located below the connecting pipe sliding block, on the central axis pipe is provided with a limiting protruding part, and the limiting protruding part limits the connecting pipe sliding block in the downward direction.

Furthermore, a plurality of grooves are formed in the foot tube connecting piece, the foot tubes are hinged in the grooves and can be folded in the direction of the central axis tube in a rotating mode around the hinge rods in the grooves.

According to the technical scheme, the foot tubes are hinged with the connecting tube sliding blocks through the foot tube connecting pieces, when the folding chair is unfolded for use, the connecting tube sliding blocks are located below the central shaft tube, and a certain angle is kept by the foot tube connecting pieces through other feet, so that the folding chair is supported; when the folding chair needs to be stored, the connecting pipe sliding block slides upwards along the central axis pipe to drive one end of the foot pipe connecting piece to move upwards, and then the foot pipe is driven to be folded towards the direction of the central axis pipe. Through the arrangement, the folding chair is convenient to fold and is not easy to block. In addition, when the swivel chair is used, the top seat surface assembly fixed on the middle shaft tube can rotate, and the function of the swivel chair is realized.

Drawings

FIG. 1 is an overall schematic view of one embodiment of a folding chair of the present invention;

FIG. 2 is an overall schematic view of an embodiment of the folding chair of the present invention with the seat hidden;

FIG. 3 is a schematic view of an embodiment of the folding chair of FIG. 2 in a semi-folded configuration;

FIG. 4 is a schematic view of an embodiment of the folding chair of FIG. 2 in a folded configuration;

FIG. 5 is a schematic view of the structure of the connecting tube slider of the folding chair of the present invention;

FIG. 6 is a schematic view of a leg tube connection of an embodiment of the folding chair of the present invention;

FIG. 7 is a front view of FIG. 6;

FIG. 8 is a schematic view of a seat folding member of an embodiment of the folding chair of the present invention;

fig. 9 is a top view of fig. 8.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a central shaft tube; 11. a limiting bulge; 2. a foot tube; 3. a connecting pipe; 4. a leg tube connector; 41. a groove; 5. connecting the pipe sliding block; 51. rotating the hole; 6. a seat surface furling piece; 61. a limiting groove; 62. a mesopore; 63. riveting holes; 7. a back tube; 8. a seat pipe; 9. a cushion.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is apparent that the specific details set forth in the following description are merely exemplary of the utility model, which can be practiced in many other embodiments that depart from the specific details disclosed herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In an embodiment, referring to fig. 1 to 4, a folding chair includes a central shaft tube 1, a leg tube 2, a connecting tube 3, a leg tube connector 4, a connecting tube slider 5 and a seat surface assembly; the seat surface assembly is fixed on the top of the middle shaft tube 1, and the connecting tube sliding block 5 is slidably sleeved on the middle shaft tube 1; the foot tube connecting piece 4 is axially and fixedly arranged on the central shaft tube 1 and is positioned between the connecting tube sliding block 5 and the seat surface assembly; one end of the foot tube 2 is hinged on the foot tube connecting piece 4; one end of the connecting pipe 3 is hinged on the connecting pipe sliding block 5, and the other end of the connecting pipe 3 is hinged on the foot pipe 2; when the connecting pipe sliding block 5 moves upwards along the central axis pipe 1, the connecting pipe 3 drives the foot pipe 2 to be folded towards the central axis pipe 1.

According to the technical scheme, the foot tubes 2 are hinged with the connecting tube sliding blocks 5 through the foot tube connecting pieces 4, when the folding chair is unfolded for use, the connecting tube sliding blocks 5 are located at the position below the central shaft tube 1, and the foot tubes are enabled to keep a certain angle through the foot tube connecting pieces 4 so as to support the folding chair; when the folding chair needs to be stored, the connecting pipe sliding block 5 slides upwards along the central axis tube 1 to drive one end of the foot tube connecting piece 4 to move upwards, and then the foot tube 2 is driven to be folded towards the direction of the central axis tube 1. Through the arrangement, the folding chair is convenient to fold and is not easy to block. In addition, when in use, the top seat surface assembly fixed on the middle shaft tube 1 can rotate, thereby realizing the function of the swivel chair.

On the basis of this embodiment, the seat surface assembly includes a seat surface folding member 6, and a back tube 7 and a seat tube 8 disposed on the seat surface folding member 6, wherein the seat surface folding member 6 is fixed on the top of the bottom bracket tube 1. Further, the back tube 7 and the seat tube 8 are hinged in the limit groove 61 of the seat surface folding member 6 at a predetermined angle respectively to form an upper half of the seat at a specific angle.

In this embodiment, the back tube 7 is inserted into a back cannula through an elbow. The upper end of the back insertion tube is provided with a plug, and the elastic rope passes through the back insertion tube, the elbow and the back tube 7 to be fixedly connected with the rivet, so that a backrest structure is formed.

The seat cushion 9, the back tube 7 for supporting the seat cushion 9, the seat tube 8, the seat surface furling member 6 and the central shaft tube 1 together form the upper half part of the folding chair, and the foot tube 2, the foot tube connecting member 4, the connecting tube 3 and the connecting tube sliding block 5 together form the lower half part of the folding chair. The seat surface folding piece is fixed with the central shaft tube 1, so that the upper half part of the chair can rotate relative to the lower half part, and the function of the swivel chair is formed.

Referring to fig. 8 and 9, a central hole 62 is formed in the center of the seat surface folding member 6, a riveting hole 63 penetrating through the central hole 62 is formed in the side wall of the seat surface folding member 6, and the bottom bracket tube 1 is inserted into the central hole 62 and fixedly connected to a rivet in the riveting hole 63. Of course, the bottom bracket tube 1 can also be fixed together by other forms of pins, buckles, etc. on the seat surface folding member 6, and the structure thereof is not limited to the description in this embodiment.

Referring to fig. 5, 6 and 7, further, the connecting tube sliding block 5 and the foot tube connecting piece 4 are both provided with a rotating hole 51, and the bottom bracket tube 1 is rotatably inserted into the rotating hole 51; when the folding chair is unfolded, the bottom surface of the seat surface furling piece 6 is abutted against the top surface of the foot tube connecting piece 4, so that the central shaft tube 1 is axially fixed with the connecting tube sliding block 5 and the foot tube connecting piece 4 respectively.

Specifically, the bottom of the connecting tube slider 5 on the bottom bracket tube 1 is provided with a position restricting protrusion 11, and the position restricting protrusion 11 restricts the connecting tube slider 5 in the downward direction. The connecting pipe sliding block 5 is limited by the limiting protrusion 11, and is prevented from falling off from the central shaft tube 1.

Specifically, the leg tube connecting member 4 is provided with a plurality of grooves 41, and the leg tubes 2 are hinged in the grooves 41 and can be folded in the direction of the bottom bracket tube 1 by rotating around the hinge rods in the grooves 41. The connecting pipe 3 is hinged to the protruding piece on the connecting pipe sliding block 5, and of course, the connecting pipe sliding block 5 may also be provided with a groove for accommodating the connecting pipe 3 for hinging and limiting.

According to the technical scheme, the plurality of foot tubes 2 are respectively connected with the sliding block through the sliding feet to slide on the central axis tube 1 by the limit stroke, the connecting tube 3 of the foot tubes 2 is driven to realize linkage folding and unfolding of the four foot tubes 2, the central axis tube 1 can rotate in the rotating holes 51 of the connecting tube sliding block 5 and the foot tube connecting piece 4, and the revolving chair rotating function of the seat surface component is realized.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, various changes, substitutions and alterations can be made without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention should be subject to the claims.

Claims

1. A folding chair, comprising: the seat cushion comprises a central shaft tube, foot tubes, connecting tubes, foot tube connecting pieces, connecting tube sliding blocks and a seat cushion assembly; the seat surface assembly is fixed at the top of the middle shaft tube, and the connecting tube sliding block is slidably sleeved on the middle shaft tube; the foot tube connecting piece is axially and fixedly arranged on the central shaft tube and is positioned between the connecting tube sliding block and the seat surface assembly; one end of the foot tube is hinged on the foot tube connecting piece; one end of the connecting pipe is hinged on the connecting pipe sliding block, and the other end of the connecting pipe is hinged on the foot pipe; when the connecting pipe slider shifts up along the central axis pipe, the connecting pipe drives the foot pipe to be folded towards the central axis pipe.

2. The folding chair as claimed in claim 1, wherein the seat surface assembly comprises a seat surface folding member, and a back tube and a seat tube disposed on the seat surface folding member, the seat surface folding member being fixed to a top portion of the bottom bracket tube.

3. The folding chair as claimed in claim 2, wherein the back tube and the seat tube are respectively hinged at a predetermined angle to the limiting groove of the seat folding member to form a seat upper half of a specific angle.

4. The folding chair as claimed in claim 2, wherein a central hole is formed at the center of the seat surface folding member, a riveting hole penetrating the central hole is formed in the side wall of the seat surface folding member, and the central shaft tube is inserted into the central hole and fixedly connected with a rivet in the riveting hole.

5. The folding chair as claimed in claim 4, wherein the connecting tube sliding block and the foot tube connecting piece are provided with rotating holes, and the central shaft tube is rotatably inserted into the rotating holes; when the folding chair is unfolded, the bottom surface of the seat surface furling piece is abutted against the top surface of the foot tube connecting piece, so that the central shaft tube is axially fixed with the connecting tube sliding block and the foot tube connecting piece respectively.

6. The folding chair as claimed in claim 1, wherein a limit protrusion is provided on the bottom bracket tube below the connecting tube slider, and the limit protrusion limits the connecting tube slider in a downward direction.

7. The folding chair as claimed in claim 1, wherein the leg tube connecting member has a plurality of grooves, and the leg tubes are hinged in the grooves and can be folded in the direction of the bottom bracket tube by rotating around the hinge rods in the grooves.