CN216256279U

CN216256279U - Folding chair

Info

Publication number: CN216256279U
Application number: CN202122473525.5U
Authority: CN
Inventors: 贾情深
Original assignee: Yongkang Qingmu Industry And Trade Co ltd
Current assignee: Yongkang Qingmu Industry And Trade Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-04-12
Anticipated expiration: 2031-10-14
Also published as: WO2023060755A1

Abstract

The utility model discloses a back folding device of a folding chair, which comprises a back rod, a hand grab handle, an upper pull rod and a telescopic piece, wherein one end of the upper pull rod is rotatably arranged at the upper part of the back rod, the other end of the upper pull rod is rotatably arranged on the hand grab handle, one end of the telescopic piece is rotatably arranged on the hand grab handle, the other end of the telescopic piece is rotatably arranged at the lower part of the back rod, the upper pull rod and the telescopic piece are symmetrically arranged in 2 groups in the left-right direction of the center line of the hand grab handle, the left back rod and the right back rod form the back part of the folding chair, the telescopic piece comprises a telescopic rod and a telescopic sleeve, and when the folding chair is in an open state, the telescopic piece is in the shortest length. The utility model discloses a folding chair which can effectively open and close the back of the folding chair, and each movable part is in a protection state when in the opening state and is not disturbed by the external environment, so that the whole structure is more stable, and the failure rate is reduced.

Description

Folding chair

Technical Field

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

Background

The patent No. 202020867362.1 discloses a folding chair, its a left side, right side folding mechanism's lower link outer end respectively with a left side, right side chair frame's back of the body pole unit sliding connection, be provided with the slide bar on the back of the body pole unit, be provided with first sliding sleeve on the lower link, first sliding sleeve slides and sets up on the slide bar, but reality folding chair generally all uses in the open air, its service environment is very complicated if use in muddy ground or grass, silt in its muddy ground is very easy just to adhere to on the slide bar, or the weeds card is on the slide bar, slide sleeve and slide bar block can not carry out effectual receipts when having used to receive, thereby cause whole folding chair to all can not receive to receive.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a folding chair.

In order to solve the technical problems, the utility model is solved by the following technical scheme: the utility model provides a folding chair, includes back of the body pole, grab handle, upper boom and extensible member, upper boom one end is rotated and is set up on the upper portion of back of the body pole, and the other end rotates and sets up on grab handle, extensible member one end is rotated and is set up on grab handle, and the other end rotates the lower part that sets up at the back of the body pole, upper boom, extensible member are provided with 2 groups in grab handle central line bilateral symmetry, and 2 back of the body poles formation folding chair about, the extensible member includes telescopic link and flexible cover, and when folding chair opened the state, the extensible member was in minimum length, and controls two extensible member below contained angles and be less than 180 degrees, controls two contained angles that upper boom top formed and is less than 180 degrees.

Its beneficial effect lies in, promotes the grab handle downwards, can drive the one end that the rotation is connected on the grab handle and slide downwards to make 2 push away outwards with the back of the body pole, thereby open folding chair back, when the complete open mode, the extensible member is in the shortest state, goes up pull rod and extensible member this moment and just pushes up each other on the grab handle and touch, thereby forms a stable back.

In the above scheme, preferably, the upper limit is arranged at the rotating position of the upper pull rod of the hand grab handle, and the side wall of the upper pull rod is pressed against the upper limit when the folding chair is in the open state.

The upper pull rod has the beneficial effects that the upper pull rod can be better limited in the opening state.

In the above scheme, preferably, the upward lifting grab handle can drive the angle formed above the two upper pull rods to be greater than 180 degrees and less than 360 degrees, and the telescopic piece is stretched.

In the above aspect, preferably, the grip handle is provided with a handle convenient for carrying.

The utility model has the advantages that the utility model can better lift and press the handle.

In the above scheme, preferably, the telescopic sleeve is a damping sleeve.

The folding chair has the beneficial effects that the use feeling of a user is optimized, the relative flexibility degree between the telescopic rod and the telescopic sleeve is reduced simultaneously, a certain limiting effect is realized between the telescopic sleeve and the telescopic rod, when the folding chair is shaken left and right, the telescopic sleeve and the telescopic rod stretch slowly, the force of the folding chair left and right is overcome, the deformation degree of the folding chair is reduced, and the stability of the folding chair is enhanced.

In the above-mentioned scheme, preferably, when the folding chair is in the open state, the telescopic part of the telescopic rod is completely positioned in the telescopic sleeve.

The effect of this is that, in the open state, the expansion element is protected from the environment, making it more stable.

The utility model has the beneficial effects that: the utility model discloses a folding chair which can effectively open and close the back of the folding chair, and each movable part is in a protection state when in the opening state and is not disturbed by the external environment, so that the whole structure is more stable, and the failure rate is reduced.

Drawings

FIG. 1 is a schematic view of the present invention.

Fig. 2 is a schematic view of the utility model open on the back.

FIG. 3 is a schematic view of the handle of the present invention.

Fig. 4 is a schematic diagram of a back folding device according to the present invention.

Detailed Description

The utility model is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1-4, a folding chair, includes back of the body pole 1, hand grab handle 2, goes up pull rod 3 and extensible member 4, be provided with last axis of rotation 11 and lower axis of rotation 12 on the back of the body pole 1, be provided with spacing 21, handle 22 on the hand grab handle 2 and rotate hole 23 and lower rotation hole 24 on, go up pull rod 3 one end and rotate the setting on the last axis of rotation 11 of back of the body pole 1, the other end rotates the setting on the last rotation hole 23 of hand grab handle 2, extensible member 4 one end is rotated the setting on the lower axis of rotation 12 of back of the body pole 1, and the other end rotates the setting on the lower rotation hole 24 of hand grab handle 2, respectively is provided with 1 back of the body pole 1 about the folding chair, goes up pull rod 3 and extensible member 4 and also respectively is provided with one about, and in the bilateral symmetry setting of hand grab handle 2 central line.

The extensible member 4 comprises an extensible rod 41 and an extensible sleeve 42, the extensible rod 41 is slidably arranged in the extensible sleeve 42, and the extensible sleeve 42 is designed as a damping extensible sleeve.

Wherein the design of damping cover is for optimizing user's use impression, and reduces the relative nimble degree between telescopic link 41 and the telescopic link 42 simultaneously, has certain limiting displacement between telescopic link 42 and the telescopic link 41, when meetting folding chair and being rocked by the left and right sides, slowly stretches out and draws back between telescopic link 42 and the telescopic link 41 to overcome folding chair and by the power about, reduce the deformation degree of folding chair, strengthen folding chair's stability.

When the folding chair needs to be opened, a hand grasps the handle 22 on the hand grab handle 2 and presses downwards to enable the hand grab handle 2 to move downwards, the upper pull rod 3 and one end of the telescopic piece 4 also move downwards along with the hand grab handle 2, so that the back rod 1 is pushed away towards two sides, thereby opening the back of the folding chair, finally, when in the opening state, the side edges of the 2 upper pull rods 3 are all propped against the upper limit 21 on the hand grab handle 2, and the included angle formed above the 2 upper pull rods 3 is less than 180 degrees, at the moment, the telescopic piece 4 is in the shortest length, the telescopic rod 41 and the telescopic sleeve 42 are mutually contacted, and can not be shortened any more, and the telescopic part of the telescopic rod 41 is completely in the telescopic sleeve 42, and at this time, the folding chair is in a use state, and at this time, the telescopic part of the telescopic rod 41 is completely in the telescopic sleeve 42, so that the external environmental factors cannot influence the telescopic part 4, and the telescopic part can normally and stably work.

Wherein at the opening in-process, the one end of pull-up rod 3 is followed hand grab handle 2 and is slided down together, the contained angle that finally forms is less than 180 degrees, pull-up rod 3 has passed through a dead point this moment, two pull-up rod 3 are in 180 degrees promptly, the length that two pull-up rod 3 formed this moment is the longest state, when passing through this point, the distance of sliding down again shortens, extensible member 4 is in shortest length this moment, 2 extensible member 4 restricts the decurrent displacement of hand grab handle 2, make hand grab handle 2 can not the lapse again, whole back is in a steady state this moment.

When the folding chair needs to be folded, the handle 22 on the hand grab handle 2 is upwards lifted by the hand, the grab handle 2 is upwards moved, one end of the upper pull rod 3 and the telescopic piece 4 is also upwards moved along with the grab handle 2, the upper pull rod 3 drives the back rod 1 to be inwards folded, the telescopic rod 41 on the telescopic piece 4 starts to be extended, finally, when the folding chair is completely folded, the included angle formed above the 2 upper pull rods 3 is larger than 180 degrees and smaller than 360 degrees, the telescopic piece 4 is in the longest state, the extension can not be carried out any more, and then the folding chair is stored, so that the folding chair can be used next time.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A folding chair, which is characterized in that: the foldable chair comprises a back rod (1), a hand grab handle (2), an upper pull rod (3) and a telescopic piece (4), wherein one end of the upper pull rod (3) is rotatably arranged on the upper part of the back rod (1), the other end of the upper pull rod is rotatably arranged on the hand grab handle (2), one end of the telescopic piece (4) is rotatably arranged on the hand grab handle (2), the other end of the telescopic piece is rotatably arranged on the lower part of the back rod (1), 2 groups of the back rod (1), the upper pull rod (3) and the telescopic piece (4) are arranged in bilateral symmetry on the central line of the hand grab handle (2), and the left back rod and the right back rod (1) form the back part of the foldable chair;

the telescopic piece (4) comprises a telescopic rod (41) and a telescopic sleeve (42), when the folding chair is in an open state, the telescopic piece (4) is in the shortest length, an included angle formed below the left telescopic piece and the right telescopic piece (4) is smaller than 180 degrees, and an included angle formed above the left upper pull rod (3) and the right upper pull rod (3) is smaller than 180 degrees.

2. A folding chair as claimed in claim 1, wherein: the upper limit (21) is arranged at the rotating position of the upper pull rod (3) of the grab handle (2), and the side wall of the upper pull rod (3) is pressed against the upper limit (21) when the folding chair is in an open state.

3. A folding chair as claimed in claim 2, wherein: the upward lifting of the grab handle (2) can drive the angle formed above the two upper pull rods (3) to be larger than 180 degrees and smaller than 360 degrees, and the telescopic piece (4) is elongated.

4. A folding chair as claimed in claim 1, wherein: the handle (2) is provided with a handle (22) which is convenient for carrying.

5. A folding chair as claimed in claim 1, wherein: the telescopic sleeve (42) is a damping sleeve.

6. A folding chair as claimed in claim 1, wherein: when the folding chair is in an open state, the telescopic part of the telescopic rod (41) is completely positioned in the telescopic sleeve (42).