CN220607848U - Folding chair - Google Patents

Abstract

The utility model discloses a folding chair which comprises a first support frame, a second support frame, a first armrest, a second armrest, a first backrest support rod, a second backrest support rod, a seat part and a backrest part. The first support frame and the second support frame are rotationally connected together, and the first support frame and the second support frame are crisscross structures after the folding chair is unfolded, and the seat part and the backrest part are propped for a user to sit and lean on, and are made of flexible materials, so that comfortable sitting posture support and fitting sense can be provided, the comfort of a user is improved, and the folding and storage of the folding chair can be facilitated. The rotatable connection design of the support frame and the armrests can facilitate folding, carrying and storing.

Description

Folding chair

Technical Field

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

Background

As a portable chair, the folding chair has the characteristics of portability and portability, and is widely applied to outdoor activities such as camping, picnic, outdoor performance and the like. However, there are problems in the current market, mainly focusing on folding convenience and backrest stability, which limit the practicality of the folding chair, affecting the user experience.

First, the existing folding chairs have a certain difficulty in the folding process, and the user needs to spend more time and effort to complete the folding. The folding mechanism is mainly characterized in that the design of the folding mechanism is not reasonable enough, so that the folding steps are complicated and the operation is not smooth.

Secondly, the backrest design of the existing folding chair has the problem of infirm. In the use, the connection of back and chair often is unstable enough, appears rocking and not hard up condition easily. This not only affects the comfort of the user, but may also cause the backrest to disengage from the seat frame, thereby creating a safety hazard.

It can be seen that the provision of an improved folding chair based on the shortcomings of the prior art is a technical problem to be solved by the person skilled in the art.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a folding chair.

The utility model solves the technical problems by the following technical scheme:

a folding chair comprising:

the first support frame comprises a first cross rod, a first vertical rod, a second cross rod and a second vertical rod which are sequentially connected;

the second support frame comprises a third cross rod, a third vertical rod, a fourth cross rod and a fourth vertical rod which are sequentially connected, wherein the first vertical rod and the fourth vertical rod are rotatably connected into an X shape, and the second vertical rod and the third vertical rod are rotatably connected into an X shape;

a first armrest rotatably mounted to the first rail;

a second armrest rotatably mounted to the third rail;

a first back support bar rotatably mounted to the first armrest;

a second back support bar rotatably mounted to the second armrest;

the seat part is made of flexible materials, one end of the seat part is connected with the first cross rod, and the other end of the seat part is connected with the third cross rod;

the backrest part is made of flexible materials, one end of the backrest part is connected with the first backrest supporting rod, and the other end of the backrest part is connected with the second backrest supporting rod.

Preferably, the first handrail comprises a first left vertical rod, a left connecting rod and a second left vertical rod, wherein the lower end of the first left vertical rod is rotatably connected with the front end of the first cross rod, the lower end of the second left vertical rod is rotatably connected with the rear end of the first cross rod, and the two ends of the left connecting rod are respectively connected with the upper end of the first left vertical rod and the upper end of the second left vertical rod;

the second handrail comprises a first right vertical rod, a right connecting rod and a second right vertical rod, wherein the lower end of the first right vertical rod is rotatably connected with the front end of the third transverse rod, the lower end of the second right vertical rod is rotatably connected with the rear end of the third transverse rod, and the two ends of the right connecting rod are respectively connected with the upper end of the first right vertical rod and the upper end of the second right vertical rod.

Preferably, the first handrail is of an integrated structure, and a circular arc-shaped first chamfer part is formed at the joint of the left connecting rod and the second left vertical rod;

the second handrail is of an integrated structure, and an arc-shaped second chamfer part is formed at the joint of the right connecting rod and the second right vertical rod.

Preferably, the method further comprises:

the first connecting piece comprises a first connecting part and a second connecting part, a first clamping groove is formed in the first connecting part, the specification of the first clamping groove is matched with that of the first chamfering part, one end of the first connecting part is rotatably connected with the left connecting rod, the first chamfering part can be clamped in and separated from the first clamping groove, the second connecting part is arranged at the upper end of the first connecting part, a first clamping groove is formed in the second connecting part, and the first backrest support rod is mounted in the first clamping groove;

the second connecting piece, including third connecting portion and fourth connecting portion, the second draw-in groove has been seted up on the third connecting portion, the specification of second draw-in groove with second chamfer portion assorted, the one end and the right connecting rod of third connecting portion rotationally are connected, second chamfer portion can block into and break away from the second draw-in groove, fourth connecting portion set up the upper end of third connecting portion, the second joint groove has been seted up to fourth connecting portion, the second back bracing piece install in the second joint groove.

Preferably, the method further comprises:

the first flexible handrail sleeve comprises a first flexible piece sleeved on the first handrail and a first outer sleeve detachably wrapped on the first flexible piece;

the second flexible handrail sleeve comprises a second flexible piece sleeved on the second handrail and a second outer sleeve detachably wrapped on the second flexible piece.

Preferably, the first supporting frame is of an integrated structure;

the second support frame is of an integrated structure.

Preferably, the lower parts of the first vertical rod and the second vertical rod are respectively bent outwards to form a certain angle, and the middle part of the second cross rod is concavely bent inwards to form a certain angle;

the lower parts of the third vertical rod and the fourth vertical rod are respectively bent outwards to form a certain angle, and the middle part of the fourth cross rod is bent inwards in a concave manner to form a certain angle.

On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the utility model.

The utility model has the positive progress effects that: according to the folding chair, the first support frame and the second support frame are rotatably connected together, the first support frame and the second support frame are in a crisscross structure after the folding chair is unfolded, the seat part and the backrest part are unfolded for a user to sit and lean on, the seat part and the backrest part are made of flexible materials, comfortable sitting posture support and fitting sense can be provided, the comfort of the user is improved, and the folding and storage of the folding chair can be facilitated. The rotatable connection design of the support frame and the armrests can facilitate folding, carrying and storing.

Drawings

Fig. 1 is a schematic view showing the overall structure of a folding chair according to a preferred embodiment of the present utility model.

Fig. 2 is a schematic view showing a detailed structure of a folding chair including a first support frame, a second support frame, a first armrest and a second armrest according to a preferred embodiment of the present utility model.

FIG. 3 is a schematic view of the first connector, the second connector, the first flexible handrail sleeve, and the second flexible handrail sleeve according to a preferred embodiment of the present utility model.

Reference numerals illustrate:

first support 1

First cross bar 11

First vertical rod 12

Second cross bar 13

Second vertical bar 14

Second support frame 2

Third cross bar 21

Third vertical rod 22

Fourth crossbar 23

Fourth vertical rod 24

First armrest 3

First left vertical rod 31

Left connecting rod 32

Second left vertical bar 33

Second handrail 4

First right vertical bar 41

Right link 42

Second right vertical bar 43

First backrest support bar 5

Second backrest support bar 6

Seat part 7

Backrest part 8

First connector 9

First connecting portion 91

Second connecting portion 92

Second connector 10

Third connecting portion 101

Fourth connecting portion 102

First flexible handrail sleeve 1011

First flexible element 10111

First outer jacket 10112

Second flexible handrail glove 1012

Second flexible element 10121

Second outer jacket 10122

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 3, the present embodiment discloses a folding chair including a first support frame 1, a second support frame 2, a first armrest 3, a second armrest 4, a first back support bar 5, a second back support bar 6, a seat portion 7, and a back portion 8.

The first support frame 1 includes a first cross bar 11, a first vertical bar 12, a second cross bar 13, and a second vertical bar 14 that are sequentially connected, and specifically, in this embodiment, the first support frame 1 is an integral structure, that is, the first cross bar 11, the first vertical bar 12, the second cross bar 13, and the second vertical bar 14 are integrally formed, but in other alternative embodiments, the utility model is not limited thereto.

The second supporting frame 2 comprises a third cross bar 21, a third vertical bar 22, a fourth cross bar 23 and a fourth vertical bar 24 which are sequentially connected. The first vertical rod 12 and the fourth vertical rod 24 are rotatably connected, and the second vertical rod 14 and the third vertical rod 22 are rotatably connected, so that the first support frame 1 and the second support frame 2 form a crisscross structure after the folding chair is unfolded. Specifically, in the present embodiment, the second supporting frame 2 is an integral structure, and the third cross bar 21, the third vertical bar 22, the fourth cross bar 23, and the fourth vertical bar 24 are integrally formed, but in other alternative embodiments, the present utility model is not limited thereto.

More specifically, in the present embodiment, in order to improve the stability when the first support frame 1 and the second support frame 2 are supported, the following structure is adopted: the lower parts of the first vertical rod 12 and the second vertical rod 14 are respectively bent outwards to a certain angle, the middle part of the second transverse rod 13 is bent inwards to a certain angle, the lower parts of the third vertical rod 22 and the fourth vertical rod 24 are respectively bent outwards to a certain angle, and the middle part of the fourth transverse rod 23 is bent inwards to a certain angle, so that the stability of the first support frame 1 and the second support frame 2 during support can be improved.

The first handrail 3 is rotatably mounted on the first cross bar 11, specifically, the first handrail 3 includes a first left vertical bar 31, a left connecting rod 32 and a second left vertical bar 33, the lower end of the first left vertical bar 31 is rotatably connected with the front end of the first cross bar 11, the lower end of the second left vertical bar 33 is rotatably connected with the rear end of the first cross bar 11, and two ends of the left connecting rod 32 are respectively connected with the upper end of the first left vertical bar 31 and the upper end of the second left vertical bar 33.

The second handrail 4 is rotatably mounted on the third cross bar 21, specifically, the second handrail 4 includes a first right vertical bar 41, a right connecting rod 42 and a second right vertical bar 43, the lower end of the first right vertical bar 41 is rotatably connected with the front end of the third cross bar 21, the lower end of the second right vertical bar 43 is rotatably connected with the rear end of the third cross bar 21, and two ends of the right connecting rod 42 are respectively connected with the upper end of the first right vertical bar 41 and the upper end of the second right vertical bar 43.

The first back support bar 5 is rotatably mounted to the first armrest 3.

The second back support bar 6 is rotatably mounted to the second armrest 4.

The seat part 7 is made of a flexible material, one end of which is connected to the first cross bar 11 and the other end of which is connected to the third cross bar 21. After the folding chair is unfolded, the first cross bar 11 and the third cross bar 21 stretch the seat part 7 to be unfolded, so that a user can sit on the seat part 7.

The backrest part 8 is made of flexible materials, one end of the backrest part is connected with the first backrest supporting rod 5, and the other end of the backrest part is connected with the second backrest supporting rod 6. After the folding chair is unfolded, the first backrest support rod 5 and the second backrest support rod 6 stretch and open the backrest 8, and when a user sits on the seat part 7, the backrest can rest on the backrest 8.

In this embodiment, the seat portion 7 and the backrest portion 8 made of a flexible material such as oxford are used, so that the folding and storage of the folding chair can be facilitated. And the seat part 7 and the backrest part 8 are made of flexible materials, so that comfortable sitting posture support and fitting sense can be provided, and the comfort of a user is improved.

Further, the back portion rear side is provided with a locking structure, when the folding chair in the folded state needs to be unfolded, the locking mechanism needs to be opened first, then the first handrail 3 and the second handrail 4 are pulled out, the first handrail 3 and the second handrail 4 are held by two hands, then the first support frame 1 and the second support frame 2 are opened leftwards and rightwards, the first back support rod 5 and the second back support rod 6 are held by two hands, the folding chair is tilted backwards, and the folding chair is slightly lifted, so that the unfolding is completed.

When the folding chair needs to be folded, a backrest support rod 5 and a second backrest support rod 6 are folded from the left side and the right side respectively and correspondingly attached to the left connecting rod 32 and the right connecting rod 42, the first handrail 3 and the second handrail 4 are held simultaneously and lifted towards the center, so that the first support frame 1 and the second support frame 2 are close to each other, then the first handrail 3 and the second handrail 4 are rotated to the two sides respectively to be attached to the seat part, and then a locking structure is locked, so that the folding is completed.

In this embodiment, the locking structure is provided, so that the folding chair can be prevented from being accidentally unfolded after being folded and stored.

Further, the folding chair of the present embodiment further includes a first connector 9 and a second connector 10.

The first connecting piece 9 includes first connecting portion 91 and second connecting portion 92, first draw-in groove has been seted up on the first connecting portion 91, first draw-in groove's specification and first chamfer portion phase-match have certain radian, first connecting portion 91 is through first draw-in groove card back on first chamfer portion, the one end and the left connecting rod 32 rotationally of first connecting portion 91 are connected, the other end backward extension of first connecting portion 91, first chamfer portion can block into and break away from first draw-in groove, the upper end at first connecting portion 91 is set up to second connecting portion 92, first joint groove has been seted up to second connecting portion 92, first back bracing piece 5 is installed in first joint groove, and first back bracing piece 5 can rotate to the direction that is close to left connecting rod 32.

The second connecting piece 10 includes third connecting portion 101 and fourth connecting portion 102, second draw-in groove has been seted up on the third connecting portion 101, the specification and the second chamfer portion phase-match of second draw-in groove, certain radian has, after the third connecting portion 101 passes through the second draw-in groove card in second chamfer portion, the one end and the right connecting rod 42 rotationally of third connecting portion 101 are connected, the other end backward extension of third connecting portion 101, the second chamfer portion can block into and break away from the second draw-in groove, fourth connecting portion 102 sets up the upper end at third connecting portion 101, the second joint groove has been seted up to fourth connecting portion 102, second back bracing piece 6 is installed in the second joint groove, and second back bracing piece 6 can rotate to the direction that is close to right connecting rod 42.

In this embodiment, with the above-described structural form, the stability of the backrest structure can be enhanced and the user sitting on the folding chair can be prevented from tipping over backward.

Further, the folding chair of the present embodiment further includes a first flexible handrail glove 1011 and a second flexible handrail glove 1012.

The first flexible handrail sleeve 1011 comprises a first flexible member 10111 sleeved on the first handrail 3 and a first outer sleeve 10112 detachably wrapped on the first flexible member 10111 in a devil's felt manner;

the second flexible handrail sleeve 1012 includes a second flexible member 10121 that is sleeved on the second handrail 4 and a second outer sleeve 10122 that is detachably wrapped on the second flexible member 10121 in a velcro manner.

In this embodiment, the first flexible handrail 1011 and the second flexible handrail 1012 are provided, so that the first handrail 3 and the second handrail 4 can be prevented from colliding with the arm, the arm can be flexibly supported, the use experience of the user is improved, the coat on the flexible member can be detachably wrapped by the velcro, and the coat can be quickly detached for cleaning after being soiled.

The folding chair of this embodiment, first support frame 1 and second support frame 2 rotationally link together, and first support frame 1 and second support frame 2 are the crisscross structure after the folding chair is expanded, struts seat portion 7 and back 8 and supplies the user to take and rely on, and seat portion 7 and back 8 adopt flexible material to make, can provide comfortable position of sitting support and sense of laminating, increase user's comfort level to can make things convenient for folding and accomodating of folding chair. The rotatable connection design of the support frame and the armrests can facilitate folding, carrying and storing.

It should be noted that in the claims and the description of this patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Claims (7)

1. A folding chair, comprising:

the first support frame comprises a first cross rod, a first vertical rod, a second cross rod and a second vertical rod which are sequentially connected;

the second support frame comprises a third cross rod, a third vertical rod, a fourth cross rod and a fourth vertical rod which are sequentially connected, wherein the first vertical rod and the fourth vertical rod are rotatably connected into an X shape, and the second vertical rod and the third vertical rod are rotatably connected into an X shape;

a first armrest rotatably mounted to the first rail;

a second armrest rotatably mounted to the third rail;

a first back support bar rotatably mounted to the first armrest;

a second back support bar rotatably mounted to the second armrest;

the seat part is made of flexible materials, one end of the seat part is connected with the first cross rod, and the other end of the seat part is connected with the third cross rod;

the backrest part is made of flexible materials, one end of the backrest part is connected with the first backrest supporting rod, and the other end of the backrest part is connected with the second backrest supporting rod.

2. The folding chair as claimed in claim 1, wherein,

the first handrail comprises a first left vertical rod, a left connecting rod and a second left vertical rod, the lower end of the first left vertical rod is rotatably connected with the front end of the first cross rod, the lower end of the second left vertical rod is rotatably connected with the rear end of the first cross rod, and the two ends of the left connecting rod are respectively connected with the upper end of the first left vertical rod and the upper end of the second left vertical rod;

the second handrail comprises a first right vertical rod, a right connecting rod and a second right vertical rod, wherein the lower end of the first right vertical rod is rotatably connected with the front end of the third transverse rod, the lower end of the second right vertical rod is rotatably connected with the rear end of the third transverse rod, and the two ends of the right connecting rod are respectively connected with the upper end of the first right vertical rod and the upper end of the second right vertical rod.

3. The folding chair as claimed in claim 2, wherein the first armrest is of an integral structure, and a first rounded portion having an arc shape is formed at a connection portion of the left link and the second left upright;

the second handrail is of an integrated structure, and an arc-shaped second chamfer part is formed at the joint of the right connecting rod and the second right vertical rod.

4. A folding chair as claimed in claim 3, further comprising:

the first connecting piece comprises a first connecting part and a second connecting part, a first clamping groove is formed in the first connecting part, the specification of the first clamping groove is matched with that of the first chamfering part, one end of the first connecting part is rotatably connected with the left connecting rod, the first chamfering part can be clamped in and separated from the first clamping groove, the second connecting part is arranged at the upper end of the first connecting part, a first clamping groove is formed in the second connecting part, and the first backrest support rod is mounted in the first clamping groove;

the second connecting piece, including third connecting portion and fourth connecting portion, the second draw-in groove has been seted up on the third connecting portion, the specification of second draw-in groove with second chamfer portion assorted, the one end and the right connecting rod of third connecting portion rotationally are connected, second chamfer portion can block into and break away from the second draw-in groove, fourth connecting portion set up the upper end of third connecting portion, the second joint groove has been seted up to fourth connecting portion, the second back bracing piece install in the second joint groove.

5. The folding chair as claimed in claim 1, further comprising:

the first flexible handrail sleeve comprises a first flexible piece sleeved on the first handrail and a first outer sleeve detachably wrapped on the first flexible piece;

the second flexible handrail sleeve comprises a second flexible piece sleeved on the second handrail and a second outer sleeve detachably wrapped on the second flexible piece.

6. The folding chair as claimed in claim 1, wherein,

the first support frame is of an integrated structure;

the second support frame is of an integrated structure.

7. The folding chair as claimed in claim 6, wherein,

the lower parts of the first vertical rod and the second vertical rod are respectively bent outwards to form a certain angle, and the middle part of the second cross rod is bent inwards in a concave manner to form a certain angle;

the lower parts of the third vertical rod and the fourth vertical rod are respectively bent outwards to form a certain angle, and the middle part of the fourth cross rod is bent inwards in a concave manner to form a certain angle.