CN202698435U

CN202698435U - Foldable chair

Info

Publication number: CN202698435U
Application number: CN2012203778694U
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-01
Filing date: 2012-08-01
Publication date: 2013-01-30
Anticipated expiration: 2022-08-01

Abstract

A foldable chair mainly comprises a flexible back surface, backrest pipes, connecting seats, seat pipes, positioning seats, slide sleeves, rear supporting pipes, a flexible seat and front supporting pipes; and the foldable chair is characterized in that the flexible seat is arranged on the seat pipes, the seat pipes are connected with the rigid front supporting pipes and the backrest pipes so as to provide rigid transverse supporting force to the flexible seat, so that the seat is free from being depressed when people sit in the chair; and meanwhile, the front supporting pipes are hinged with the seat pipes, the seat pipes are hinged with the rear supporting pipes through the slide sleeves, the rear supporting pipes are hinged with the front supporting pipes through the connecting seats, and the folding and unfolding of the chair can be realized through a variable triangular mechanism consisting of the front supporting pipes, the rear supporting pipes and the seat pipes. The foldable chair is simple in structure, convenient to use and suitable for being used in the fields such as outdoor tours, sandy benches, courtyards and the like.

Description

Folding seat

Technical field

The utility model relates to a kind of chair, particularly a kind of folding seat.

Background technology

Chinese patent database discloses the utility model of denomination of invention for " a kind of rest folding chair frame " on August 25th, 2004, and the patent No. is 03217983.9.A kind of rest folding chair frame comprises two forelegs, two back leg component parts, and rear leg assemblies is that telescopic tube assembly comprises sleeve and loop bar, the hinged connection of the upper end of loop bar and foreleg; Two cross bars, the hinged connection of cross bar and foreleg, the hinged connection of rear end and sleeve; Two handrails, handrail middle part and the foreleg hinged connection in middle part, rear end and the sleeve hinged connection in middle part; The first cross members, it comprises two support bars of decussate, the two ends of support bar respectively with the hinged connection in lower end of front end and the foreleg of cross bar; The second cross members, it comprises two support bars of decussate, the two ends of support bar respectively with the upper end of foreleg and the hinged connection in upper end of sleeve.The shortcoming of this folding seat is that two cross bars and the two foreleg assemblies that support seat surface are realized cross-brace by the first cross members and the second cross members of being arranged to X-shaped, when seat surface is received when taking a seat power, the first cross members and the second cross members that support two cross bars and two foreleg groups can rotate, cause seat surface to stay, that takes a seat is comfortable bad, and simultaneously the structure member of folding seat is many, and assembles and expend man-hour, cause cost compare high, be unfavorable for promoting.For this point shortcoming, be necessary to make improvements.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides the horizontal fixed support seat of a kind of energy and folding seat simple in structure, easy to assembly.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of folding seat mainly comprises the flexible back side, backing tube, Connection Block, seat surface pipe, positioning seat, sliding sleeve, rear foot tube, flexible seat surface, front foot pipe; It is characterized in that described backing tube is a U-shaped pipe, the two ends of backing tube are separately fixed on two Connection Blocks, and the flexible back side is socketed on the backing tube; Front foot pipe is a U-shaped pipe, and the two ends of front foot pipe are separately fixed on two Connection Blocks; Rear foot tube is a U-shaped pipe, and the two ends of U-shaped pipe are hinged on respectively on the Connection Block; Positioning seat is installed on the rear foot tube; The U-shaped pipe of seat surface Guan Weiyi root, hinged two sliding sleeves on the seat surface pipe, sliding sleeve is socketed on the rear foot tube, and seat surface pipe and front foot pipe are hinged, and the flexible mount surface cover is connected on the seat surface pipe.

In the utility model, by being provided with sliding sleeve, the seat surface pipe can be rotated around rear foot tube between seat surface pipe and the rear foot tube.

In the utility model, described rear foot tube can rotate around Connection Block.

In the utility model, described backing tube and front foot pipe form the framework of an annular by Connection Block, in order to the supporting flexible back side and flexible seat surface, are bearing when taking a seat power, guarantee that chair frame can not be out of shape.

In the utility model, formed variable triangle mechanism between described front foot pipe, rear foot tube, the seat surface pipe.

The utility model has the advantages that: flexible seat surface is located on the seat surface pipe, and the seat surface pipe is connected with backing tube with the front foot pipe of rigidity, and the cross-brace power of rigidity is provided for flexible seat surface, and flexible seat surface can not stay when guaranteeing to take a seat; Be hinged by front foot pipe and seat surface pipe simultaneously, seat surface pipe and rear foot tube are hinged by sliding sleeve, rear foot tube and front foot pipe are hinged by Connection Block, realize folding and launching of chair by having formed variable triangle mechanism between front foot pipe, rear foot tube, the seat surface pipe, therefore the utlity model has simple in structurely, easy to operate, be fit to the sandy beach, camp, the characteristics such as various occasion uses such as garden.

Description of drawings

Fig. 1 is the schematic perspective view under the utility model use state.

Fig. 2 is the utility model exploded perspective view.

Fig. 3 is the schematic perspective view in the utility model folding process.

Fig. 4 is the schematic perspective view after the utility model folds.

Fig. 5 is the structural representation of the utility model stacked state.

The specific embodiment

Below by specific embodiment, and by reference to the accompanying drawings the technical solution of the utility model is described further.

Embodiment: with reference to Fig. 1, a kind of folding seat mainly comprises the flexible back side 1, backing tube 2, Connection Block 3, seat surface pipe 4, positioning seat 5, sliding sleeve 6, rear foot tube 7, flexible seat surface 8, front foot pipe 9; It is characterized in that described backing tube 2 is installed on the Connection Block 3, the flexible back side 1 is installed on the backing tube 2; Front foot pipe 9 is installed on the Connection Block 3; Rear foot tube 7 is hinged on the Connection Block 3; Positioning seat 5 is installed on the rear foot tube 7; Sliding sleeve 6 is hinged on the seat surface pipe 4, and is socketed on the rear foot tube 7; Seat surface pipe 4 is hinged with front foot pipe 9; Flexible seat surface 8 is installed on the seat surface pipe 4.During use, when flexible seat surface 8 bears when taking a seat power, seat surface pipe 4 bears lateral pull and vertical pressure, and lateral pull provides support power by the annular frame that front foot pipe 9 and backing tube 2 consist of; Vertical pressure bears by front foot pipe 9 and sliding sleeve 6, passes to rear foot tube 7 after sliding sleeve 6 is stressed; Seat surface pipe 4 also produces torsional forces, pin joint between front foot pipe 9 and the seat surface pipe 4 is the strong point, front end is stressed large, and produce clockwise torsional forces, therefore, sliding sleeve 6 makes progress slippage until sliding sleeve 6 is inconsistent with positioning seat 5, the support force balance that is provided by positioning seat 5 torsional forces that produces of seat surface pipe 4, at this moment, the triangle mechanism that is comprised of front foot pipe 9, rear foot tube 7, seat surface pipe 4 has become the triangular support structure of rigidity under stressed state, and chair is in the use state.

With reference to Fig. 2, take being connected of backing tube 2, front foot pipe 9 and Connection Block 3 apart after, be provided with diameter less than one section reducing of backing tube 2 internal diameters in front foot pipe 9, again by with being fixedly connected with of Connection Block 3, guarantee firm connection the between backing tube 2 and the front foot pipe 9.

With reference to Fig. 3, when folding, moving sliding sleeve 6, sliding sleeve 6 and positioning seat 5 are broken away from, and to the direction motion away from positioning seat 5, at this moment, according to Triangle Principle as can be known, the triangle mechanism that is comprised of front foot pipe 9, rear foot tube 7, seat surface pipe 4 moves, and the angle between front foot pipe 9 and the rear foot tube 7 diminishes, and chair is in the folded state.

With reference to Fig. 4, continue moving sliding sleeve 6, make the triangle mechanism that is formed by front foot pipe 9, rear foot tube 7, seat surface pipe 4 continue to produce motion, rear foot tube 7 is inconsistent with front foot pipe 9, has limited the movement of sliding sleeve 6, at this moment, reach the state after folding, the smaller volume of chair is convenient for carrying and transports.

With reference to Fig. 5, many folding seat need to be put together when depositing or transporting, can with after the upset of second folding seat again the Rotate 180 degree stack, namely first backing tube 2 and second 's rear foot tube 7 inconsistent placements by that analogy, are placed the 3rd, the 4th; Until satisfy the required requirement of parking space.

Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.

Claims

1. a folding seat mainly comprises the flexible back side (1), backing tube (2), Connection Block (3), seat surface pipe (4), positioning seat (5), sliding sleeve (6), rear foot tube (7), flexible seat surface (8), front foot pipe (9); It is characterized in that described backing tube (2) is installed on the Connection Block (3), the flexible back side (1) is installed on the backing tube (2); Front foot pipe (9) is installed on the Connection Block (3); Rear foot tube (7) is hinged on the Connection Block (3); Positioning seat (5) is installed on the rear foot tube (7); Sliding sleeve (6) is hinged on the seat surface pipe (4), and is socketed on the rear foot tube (7); Seat surface pipe (4) is hinged with front foot pipe (9); Flexible seat surface (8) is installed on the seat surface pipe (4).

2. a kind of folding seat according to claim 1 is characterized in that being provided with sliding sleeve (6) between described seat surface pipe (4) and the rear foot tube (7).

3. a kind of folding seat according to claim 1 and 2 is characterized in that the triangle mechanism that forms by sliding sleeve (6) and Connection Block (3) between described front foot pipe (9), rear foot tube (7), the seat surface pipe (4).