CN212165374U - Foldable detachable chair - Google Patents

Abstract

The utility model discloses a collapsible reassembling type chair, including left chair frame and right chair frame, wherein the one end of left cushion vaulting pole and the lower extreme swing joint of left back vaulting pole, the one end swing joint of left back vaulting pole and left handrail, left handrail and left cushion vaulting pole all with left front chair foot swing joint, back chair foot and left handrail swing joint in a left side, the one end of right cushion vaulting pole and the lower extreme swing joint of right back vaulting pole, the one end swing joint of right back vaulting pole and right handrail, right handrail and right cushion vaulting pole all with right front chair foot swing joint, back chair foot and right handrail swing joint in a right side, the other end of left cushion vaulting pole can be dismantled with the other end of right cushion vaulting pole through connecting down and be connected, the upper end of left back vaulting pole can be dismantled with the upper end of right back vaulting pole through last connecting vaulting pole and be connected. The utility model discloses in can dismantle the connection fast between left chair frame and the right chair frame through connecting the vaulting pole to realize chair quick assembly disassembly.

Description

Foldable detachable chair

Technical Field

The utility model relates to the field of furniture, especially, relate to a collapsible reassembling type chair.

Background

The chair is a piece of furniture frequently used in daily life, and brings convenience to life of people no matter at home, in offices, restaurants or other places. The folding chair is a chair popular with people, has two states of folding and unfolding, and can be folded and folded when not needed, so that the occupied space is reduced, the folding chair is light and convenient to transport, and the folding chair has strong practicability. The folding function of current folding chair is too simple, especially need take the chair to outdoor use, and the cost of transportation of the chair that can not fully fold or carry out the dismouting will increase by a wide margin to too complicated package assembly, seriously influence its use scene and user's use experience.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a foldable detachable chair which can solve the problem that the chair can not be fully folded and can not be quickly disassembled and assembled.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a foldable detachable chair comprises a left chair frame and a right chair frame, wherein the left chair frame comprises a left backrest stay bar, a left armrest, a left cushion stay bar, a left front chair foot and a left rear chair foot, the right chair frame comprises a right backrest stay bar, a right armrest, a right cushion stay bar, a right front chair foot and a right rear chair foot, and further comprises a connecting stay bar for connecting the left chair frame and the right chair frame, the connecting stay bar comprises an upper connecting stay bar and a lower connecting stay bar, one end of the left cushion stay bar is movably connected with the lower end of the left backrest stay bar, the left backrest stay bar is movably connected with one end of the left armrest, the left armrest and the left cushion stay bar are movably connected with the left front chair foot, the left rear chair foot is movably connected with the left armrest, one end of the right cushion stay bar is movably connected with the lower end of the right backrest stay bar, the right backrest stay bar is movably connected with one end of the right armrest, the right cushion stay bar and the right cushion are movably connected with the right front chair foot, the utility model discloses a chair, including left side back vaulting pole, right side back chair foot and right handrail swing joint, the other end of left side cushion vaulting pole can be dismantled through connecting down the vaulting pole and be connected with the other end of right cushion vaulting pole, the upper end of left side back vaulting pole can be dismantled through last connecting vaulting pole and the upper end of right back vaulting pole and be connected.

Preferably, still include lower base, connect the vaulting pole down including connecting the vaulting pole body and fixed connection under the first bail of connecting the vaulting pole body one end down, base one side is articulated with the other end of left cushion vaulting pole down, the upper and lower both ends of lower base opposite side are extended to right cushion vaulting pole direction and are formed the lower connection piece, the other end of connecting the vaulting pole body down is articulated through lower connection piece and lower base, right cushion vaulting pole can dismantle through first bail and lower connection vaulting pole body and be connected.

Preferably, still include locking plate down, the one end of locking plate articulates in one side that right cushion vaulting pole is close to left cushion vaulting pole down, the other end of locking plate is equipped with a vertical open-ended first draw-in groove down, the other end of right cushion vaulting pole outwards extends and forms a horizontal open-ended second draw-in groove, first bail passes first draw-in groove, second draw-in groove in proper order and is connected with right cushion vaulting pole block.

Preferably, still include the upper base, go up the connection vaulting pole including the connection vaulting pole body and fixed connection at the second bail of last connection vaulting pole body one end, upper base one side is articulated with the other end of right back vaulting pole, the upper and lower both ends of upper base extend to the back vaulting pole direction left and form the connection piece, the other end of going up the connection vaulting pole body is articulated with the upper base through last connection piece, left side back vaulting pole passes through the bail and can dismantle with last connection vaulting pole body and be connected.

Preferably, still include the locking plate, the one end of going up the locking plate articulates in one side that left back vaulting pole is close to right back vaulting pole, the other end of going up the locking plate is equipped with a horizontal open-ended third draw-in groove, the other end of left side back vaulting pole outwards extends and forms a vertical open-ended fourth draw-in groove, the second bail passes third draw-in groove, fourth draw-in groove in proper order and is connected with left back vaulting pole block.

Preferably, inlay right locating part and the right pivot on the chair foot behind the right including left locating part, the left pivot, the cover that the cover inlays on the chair foot behind the left side, the first spacing hole in left side locating part upper end, its lower extreme are equipped with first connecting hole, the spacing hole of right locating part upper end second, its lower extreme are equipped with the second connecting hole, first spacing hole and left cushion vaulting pole pass through left pivot and left back vaulting pole swing joint, chair foot and first connecting hole swing joint behind the left side, spacing hole of second and right cushion vaulting pole pass through right pivot and right back vaulting pole swing joint, right back chair foot and second connecting hole swing joint.

Preferably, still include preceding bracing piece, left side front chair foot and right front chair foot all can dismantle with preceding bracing piece through first tenon fourth of the twelve earthly branches structure and be connected.

Preferably, the front support rod further comprises a first fixing strip and a second fixing strip, a first buckle is arranged on one side end face of the left front chair leg, a second buckle is arranged on one side end face of the right front chair leg, one end of the first fixing strip is movably connected with one end of the front support rod, the other end of the first fixing strip is connected with the first buckle in a clamping manner, one end of the second fixing strip is movably connected with the other end of the front support rod, and the other end of the second fixing strip is connected with the second buckle in a clamping manner.

Preferably, still include the back bracing piece, left side back chair foot and right back chair foot all can dismantle with the back bracing piece through second tenon fourth of twelve earthly branches structure and be connected.

Preferably, the rear supporting rod further comprises a third fixing strip and a fourth fixing strip, a third buckle is arranged on one side end face of the left rear chair leg, a fourth buckle is arranged on one side end face of the right rear chair leg, one end of the third fixing strip is movably connected with one end of the rear supporting rod, the other end of the third fixing strip is connected with the third buckle in a clamping mode, one end of the fourth fixing strip is movably connected with the other end of the rear supporting rod, and the other end of the fourth fixing strip is connected with the fourth buckle in a clamping mode.

Compared with the prior art, the beneficial effects of the utility model reside in that: the left chair frame and the right chair frame are quickly spliced through the upper connecting support rod and the lower connecting support rod, meanwhile, the left front chair foot and the right front chair foot are detachably connected with the front support rod through the first tenon-and-mortise structure, the left front chair foot, the first fixing strip and the front support rod are connected in a triangular mode, the right front chair foot, the second fixing strip and the front support rod are connected in a triangular mode, reliable connection is formed between the left front chair foot and the right front chair foot, reliable connection is formed between the left rear chair foot and the right rear chair foot in the same mode, and the left chair frame and the right chair frame are further reliably connected.

Drawings

Fig. 1 is a schematic structural view of the foldable detachable chair according to the present invention.

Fig. 2 is a side view of the foldable chair according to the present invention.

Fig. 3 is a schematic structural view of the lower connection stay bar of the present invention.

Fig. 4 is a schematic structural view of the right cushion stay of the present invention.

Fig. 5 is a schematic structural view of the front support rod of the present invention.

In the figure: 1-left chair frame; 11-left back brace; 12-left armrest; 13-left cushion stay bar; 14-left front chair leg; 15-left rear chair leg; 2-right chair frame; 21-right back support bar; 22-right armrest; 23-right cushion stay bar; 231-a second card slot; 24-right front chair leg; 25-right rear chair leg; 3-connecting the brace rod; 31-upper connecting stay bar; 32-lower connecting brace rod; 321-lower connecting stay rod body; 322-a first staple; 4-a lower base; 5-lower locking plate; 51-a first card slot; 6-left limit piece; 61-a first limit hole; 62-a first connection hole; 7-a front support bar; 71-a first fixation bar; 72-second fixation bar.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 5, in this embodiment, the chair is integrally divided into a left frame 1 and a right frame 2, the left frame 1 includes a left backrest support rod 11, a left armrest 12, a left cushion support rod 13, a left front leg 14 and a left rear leg 15, the right frame 2 includes a right backrest support rod 21, a right armrest 22, a right cushion support rod 23, a right front leg 24 and a right rear leg 25, and further includes a connecting support rod 3, the connecting support rod 3 includes an upper connecting support rod 31 and a lower connecting support rod 32, one end of the left cushion support rod 13 is hinged to a lower end of the left backrest support rod 11, the left backrest support rod 11 is hinged to one end of the left armrest 12, the left armrest support rod 12 is disposed above the left cushion support rod 13, the left armrest 12 and the left cushion support rod 13 are both hinged to the left front leg 14, the left rear leg 15 is hinged to the left armrest 12, one end of the right backrest support rod 23 is hinged to a lower end of the right cushion 21, right back vaulting pole 21 is articulated with the one end of right handrail 22 to right handrail 22 sets up the top at right cushion vaulting pole 23, right handrail 22 and right cushion vaulting pole 23 all are articulated with right front chair foot 24, right back chair foot 25 is articulated with right handrail 22, but the other end of left side cushion vaulting pole 13 is connected through the other end block of connecting vaulting pole 32 with right cushion vaulting pole 23 down, the upper end of left side back vaulting pole 11 is connected through the upper end block of last connecting vaulting pole 31 with right back vaulting pole 21.

Specifically, the lower locking plate comprises a lower base 4 and a lower locking plate 5, wherein the lower connecting support rod 32 comprises a lower connecting support rod body 321 and a first clamp 322 connected to one end of the lower connecting support rod body 321, one side of the lower base 4 is movably connected to the other end of the left cushion support rod 13, the upper and lower ends of the other side of the lower base 4 extend towards the right cushion support rod 23 to form a lower connecting sheet, the other end of the lower connecting support rod body 321 is movably connected to the lower base 4 through the lower connecting sheet, the right cushion support rod 23 is detachably connected to the lower connecting support rod body 321 through the first clamp 322, one end of the lower locking plate 5 is movably connected to one side of the right cushion support rod 23 close to the left cushion support rod 13, the other end of the lower locking plate 5 is provided with a first clamp groove 51 with a longitudinal opening, and specifically, when the first clamp groove 51 with the longitudinal opening of the lower locking plate 5 is in clamping connection with the first clamp groove 51, the opening direction of the first engaging groove 51 is from bottom to top along the longitudinal direction, the other end of the right seat cushion stay 23 extends outward to form a second engaging groove 231 with a transverse opening, specifically, the opening direction of the second engaging groove 231 with the transverse opening of the right seat cushion stay 23 is from the tail end of the right seat cushion stay 23 to the middle direction of the right seat cushion stay 23, when the first engaging groove 51 and the second engaging groove 231 are both connected with the first clamping ring 322 in a clamping manner, the projections of the first engaging groove 51 and the second engaging groove 231 on the same plane are perpendicular to each other, when the first clamping ring 322 passes through the first engaging groove 51 and the second engaging groove 231 in sequence to be connected with the right seat cushion stay 23 in a clamping manner, the first engaging groove 51 limits the movement of the first clamping ring 322 in the horizontal direction, and the second engaging groove 231 limits the movement of the first clamping ring 322 in the vertical direction, so as to limit the first clamping ring 322 at a predetermined position, further limiting the position of the lower connecting strut 32.

Specifically, the upper connecting support rod 31 comprises an upper connecting support rod body and a second clamp connected to one end of the upper connecting support rod body, one side of the upper base is movably connected with the other end of the left backrest support rod 11, the upper and lower ends of the upper base extend towards the right backrest support rod 21 to form an upper connecting sheet, the other end of the upper connecting support rod body is movably connected with the upper base through the upper connecting sheet, the right backrest support rod 21 is detachably connected with the upper connecting support rod body through the second clamp, one end of the upper lock plate is movably connected to one side of the right backrest support rod 21 close to the left backrest support rod 11, a third clamp groove with a transverse opening is arranged at the other end of the upper lock plate, and specifically, when the third clamp groove with the transverse opening of the upper lock plate is clamped and connected with the third clamp groove, the opening direction of the third clamp groove is from left to right along the transverse direction, the other end of the right backrest stay bar 21 extends outwards to form a fourth clamping groove with a longitudinal opening, specifically, the opening direction of the fourth clamping groove is formed by the top end of the right backrest stay bar 21 facing downwards, and the second clamp nail sequentially penetrates through the third clamping groove and the fourth clamping groove to be connected with the right backrest stay bar 21 in a clamping manner.

Preferably, the chair further comprises a left limiting piece 6 movably connected with the left rear chair leg 15, a left rotating shaft, a right limiting piece movably connected with the right rear chair leg 25 and a right rotating shaft, a first limiting hole 61 is arranged at the upper end of the left limiting piece 6, the lower end of the right limiting piece is provided with a first connecting hole 62, the upper end of the right limiting piece is provided with a second limiting hole, the lower end of the right limiting piece is provided with a second connecting hole, the first limit hole 61 and the left cushion brace 13 are movably connected with the left backrest brace 11 through a left rotating shaft, the left rear chair leg 15 is movably connected with a first connecting hole 62, the second limit hole and the right cushion brace 23 are movably connected with a right backrest brace 21 through a right rotating shaft, the right rear chair leg 25 is movably connected with the second connecting hole, so that when the chair is formed, the left rear chair leg 15 is axially abutted with the left turn which is inserted in the first limit hole 61, and the right rear chair leg 25 is axially abutted with the right turn which is inserted in the second limit hole, thereby limiting the inclination angle of the left rear chair leg 15 and the right rear chair leg 25.

Preferably, the chair further comprises a front supporting rod 7, and the left front chair leg 14 and the right front chair leg 24 are detachably connected with the front supporting rod 7 through a first mortise and tenon structure. Preferably, the front support bar 7 further includes a first fixing bar 71 and a second fixing bar 72, a first buckle is disposed on one side end surface of the left front chair leg 14, a second buckle is disposed on one side end surface of the right front chair leg 24, one end of the first fixing bar 71 is movably connected with one end of the front support bar 7, the other end of the first fixing bar 71 is connected with the first buckle in a clamping manner, one end of the second fixing bar 72 is movably connected with the other end of the front support bar 7, and the other end of the second fixing bar 72 is connected with the second buckle in a clamping manner.

Preferably, still include the back bracing piece, left side back chair foot 15 and right back chair foot 25 are all through the detachable connection of second tenon fourth of twelve earthly branches structure and back bracing piece. Preferably, the rear supporting rod further comprises a third fixing strip and a fourth fixing strip, a third buckle is arranged on one side end face of the left rear chair leg 15, a fourth buckle is arranged on one side end face of the right rear chair leg 25, one end of the third fixing strip is movably connected with one end of the rear supporting rod, the other end of the third fixing strip is connected with the third buckle in a clamping manner, one end of the fourth fixing strip is movably connected with the other end of the rear supporting rod, and the other end of the fourth fixing strip is connected with the fourth buckle in a clamping manner.

Specifically, the working principle and the components of the first embodiment are specifically described as follows:

as shown in fig. 1 to 5, in the present embodiment, the left frame 1 includes a left backrest brace 11, a left armrest 12, a left cushion brace 13, a left front leg 14 and a left rear leg 15, the right frame 2 includes a right backrest brace 21, a right armrest 22, a right cushion brace 23, a right front leg 24 and a right rear leg 25, the left backrest brace 11 is hinged to the left cushion brace 13 through a left rotation shaft, so that the left backrest brace 11 can be folded and rotated around the left rotation shaft to a position abutting against or coinciding with the left cushion brace 13, while one end of the left armrest 12 is hinged to the left backrest brace 11, and the other end of the left armrest 12 and the left cushion brace 13 are both hinged to the left front leg 14, the left rear leg 15 is hinged to the left armrest 12, so that when the left backrest brace 11 can be folded and rotated around the left rotation shaft to the left cushion brace 13, the left front leg 14 and the left rear leg 15 can be synchronously driven by the left armrest 12, specifically, the left front leg 14 is driven by the left armrest 12, the upper and lower ends of the left front leg 14 rotate around the connection point between the left front leg 14 and the left cushion stay 13, in this embodiment, the left limiting member 6 is further sleeved and embedded on the left rear leg 15, the first connection hole 62 at the lower end of the left limiting member 6 is hinged to the left rear leg 15, and the first limiting hole 61 at the upper end of the left limiting member 6 is hinged to the left pivot, so that the left rear leg 15 rotates around the first connection hole 62 under the drive of the left armrest 12, and further, when the left rear leg 15 is in an open state, the left pivot inserted into the first limiting hole 61 abuts against the left rear leg 15 to limit the open angle of the left rear leg 15. In the present embodiment, the structure and connection relationship of the components of the right frame 2 are similar to those of the components of the left frame 1, so the structure and connection relationship of the components of the right frame 21 are the same as above.

In this embodiment, the left cushion stay 13 is hinged to the lower connecting stay 32 through the lower base 4, specifically, the lower base 4 can be connected to one side of the left cushion stay 13 close to the right cushion stay 23 through a connecting member such as a pin, and the lower connecting stay is hinged to the lower connecting piece of the lower base 4, so that the lower connecting stay 32 can be folded to a position where it is abutted against or overlapped with the left cushion stay 13, meanwhile, the other end of the right cushion stay 23 extends outward to form a second slot 231 of a transverse opening (as shown in fig. 4, the opening direction is opened from the end of the right cushion stay 23 to the middle of the right cushion stay 23 in the horizontal plane), further, the other end of the right cushion stay 23 is hinged to one end of the lower locking plate 5, the other end of the lower locking plate 5 is provided with a longitudinal opening (as shown in fig. 4, the opening direction is that, when the first clamp 322 is connected to the first slot 51 in a clamping manner, the opening direction of the first card slot 51 on the horizontal plane is opened from bottom to top along the longitudinal direction). The upper connecting stay 31 is disposed between the left back stay 11 and the right back stay 21 in the same manner as above.

In this embodiment, when the chair is assembled, the left chair frame 1 and the right chair frame 2 are firstly opened, specifically, the left backrest brace rod 11 can be opened by rotating around the left rotating shaft, and in the opening process, the left backrest brace rod 11 synchronously drives the left front chair leg 14 and the left rear chair leg 15 through the left armrest 12, so that the left front chair leg 14 and the left rear chair leg 15 are opened in a forked form, and the right chair frame 2 is opened in the same manner; then the first staple 322 of the lower connecting support rod 32 is clamped into the second clamping groove 231 to be clamped and connected with the right cushion support rod 23, then the lower locking plate 5 is rotated to enable the lower locking plate 5 to be clamped and connected with the first staple 322 through the first clamping groove 51, at this time, the lower locking plate 5 is positioned between the lower connecting support rod body 321 and the right cushion support rod 23, similarly, the second staple of the upper connecting support rod 31 is clamped and connected with the right backrest support rod 21 through the third clamping groove and the fourth clamping groove to enable the left chair frame 1 and the right chair frame 2 to be spliced, further, the left front chair leg 14 and the right front chair leg 24 are detachably connected with the front support rod 7 through the first mortise and tenon joint structure (wherein, tenons are arranged at two ends of the front support rod 7, and mortise are arranged on the left front chair leg 14 and the right front chair leg 24), meanwhile, the other end of the first fixing strip 71 is clamped and connected with the first buckle on the left front chair leg 14, the other end of the second fixing strip 72 is clamped and connected with the second buckle on the right front chair leg 24, the left front chair leg 14, the first fixing strip 71 and the front support rod 7 are connected in a triangular form, the right front chair leg 24, the second fixing strip 72 and the front support rod 7 are connected in a triangular form, the left front chair leg 14 and the right front chair leg 24 are reliably connected by using the stability of the triangle, the left rear chair leg 15 and the right rear chair leg 25 are reliably connected in the same way, and the left chair frame 1 and the right chair frame 2 are further reliably connected.

During disassembly, the lower locking plate 5 and the upper locking plate are rotated firstly, so that the first clamping groove 51 is separated from the first clamping nail 322, the third clamping groove is separated from the second clamping nail, then the first clamping nail 322 is removed from the second clamping groove 231, the second clamping nail is removed from the fourth clamping groove, then the fixing strip is disassembled from the corresponding chair leg, the front supporting rod 7 is disassembled from the space between the left front chair leg 14 and the right front chair leg 24, the rear supporting rod is disassembled from the space between the left rear chair leg 15 and the right rear chair leg 25, at the moment, the left chair frame 1 and the right chair frame 2 are separated from each other, then the left chair frame 1 and the right chair frame 2 are respectively folded, and are put into a storage bag or bound by a rope.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (10)

1. The utility model provides a collapsible reassembling type chair, includes left chair frame and right chair frame, left side chair frame includes left back vaulting pole, left handrail, left cushion vaulting pole, preceding chair foot in a left side and back chair foot in a left side, right side chair frame includes right back vaulting pole, right handrail, right cushion vaulting pole, preceding chair foot in a right side and back chair foot, its characterized in that: also comprises a connecting support rod used for connecting the left chair frame and the right chair frame, the connecting support rod comprises an upper connecting support rod and a lower connecting support rod, one end of the left cushion stay bar is movably connected with the lower end of the left backrest stay bar, the left backrest stay bar is movably connected with one end of the left handrail, the left handrail and the left cushion stay bar are both movably connected with the left front chair leg, the left rear chair leg is movably connected with the left handrail, one end of the right cushion stay bar is movably connected with the lower end of the right backrest stay bar, the right backrest stay bar is movably connected with one end of the right handrail, the right handrail and the right cushion stay bar are both movably connected with the right front chair foot, the right rear chair foot is movably connected with the right handrail, the other end of the left cushion brace rod is detachably connected with the other end of the right cushion brace rod through a lower connecting brace rod, the upper end of the left backrest brace rod is detachably connected with the upper end of the right backrest brace rod through the upper connecting brace rod.

2. The collapsible chair as claimed in claim 1, wherein: still include lower base, connect the vaulting pole down including connecting the vaulting pole body and fixed connection under the first bail of connecting the vaulting pole body one end down, base one side is articulated with the other end of left cushion vaulting pole down, the upper and lower both ends of lower base opposite side are the cushion vaulting pole direction extension formation lower connecting piece right, the other end of connecting the vaulting pole body down is articulated through lower connecting piece and lower base, right side cushion vaulting pole can dismantle with the lower connection vaulting pole body through first bail and be connected.

3. The collapsible chair as claimed in claim 2, wherein: still include locking plate down, the one end of locking plate articulates in one side that right cushion vaulting pole is close to left cushion vaulting pole down, the other end of locking plate is equipped with a vertical open-ended first draw-in groove down, the other end of right cushion vaulting pole outwards extends and forms a horizontal open-ended second draw-in groove, first bail passes first draw-in groove, second draw-in groove in proper order and is connected with right cushion vaulting pole block.

4. The collapsible chair as claimed in claim 1, wherein: still include the upper base, go up the connection vaulting pole and include the connection vaulting pole body and fixed connection at the second bail of last connection vaulting pole body one end, upper base one side is articulated with the other end of right back vaulting pole, the upper and lower both ends of upper base extend left back vaulting pole direction and form the connection piece, the other end of going up the connection vaulting pole body is articulated with the upper base through last connection piece, left side back vaulting pole passes through the bail and can dismantle with last connection vaulting pole body and be connected.

5. The collapsible chair as claimed in claim 4, wherein: still include the locking plate, the one end of going up the locking plate articulates the one side that left back vaulting pole is close to right back vaulting pole, the other end of going up the locking plate is equipped with a horizontal open-ended third draw-in groove, the other end of left side back vaulting pole outwards extends and forms a vertical open-ended fourth draw-in groove, the second bail passes third draw-in groove, fourth draw-in groove in proper order and is connected with left back vaulting pole block.

6. The collapsible chair as claimed in claim 1, wherein: still inlay left locating part, left pivot, the right locating part and the right pivot on the chair foot of back on the right side including the cover on left back chair foot, the first spacing hole in left side locating part upper end, its lower extreme is equipped with, the spacing hole of right locating part upper end second, its lower extreme are equipped with the second connecting hole, first spacing hole and left cushion vaulting pole pass through left pivot and left back vaulting pole swing joint, left back chair foot and first connecting hole swing joint, the spacing hole of second and right cushion vaulting pole pass through right pivot and right back vaulting pole swing joint, right back chair foot and second connecting hole swing joint.

7. The collapsible chair as claimed in claim 1, wherein: the left front chair leg and the right front chair leg are detachably connected with the front supporting rod through a first tenon-and-mortise structure.

8. The collapsible chair as claimed in claim 7, wherein: the front supporting rod further comprises a first fixing strip and a second fixing strip, a first buckle is arranged on one side end face of the left front chair foot, a second buckle is arranged on one side end face of the right front chair foot, one end of the first fixing strip is movably connected with one end of the front supporting rod, the other end of the first fixing strip is connected with the first buckle in a clamping mode, one end of the second fixing strip is movably connected with the other end of the front supporting rod, and the other end of the second fixing strip is connected with the second buckle in a clamping mode.

9. The collapsible chair as claimed in claim 1, wherein: still include back bracing piece, chair foot and right back chair foot all can dismantle with back bracing piece through second tenon fourth of twelve earthly branches structure and be connected after a left side.

10. The collapsible chair as claimed in claim 9, wherein: the rear supporting rod further comprises a third fixing strip and a fourth fixing strip, a third buckle is arranged on one side end face of the left rear chair foot, a fourth buckle is arranged on one side end face of the right rear chair foot, one end of the third fixing strip is movably connected with one end of the rear supporting rod, the other end of the third fixing strip is connected with the third buckle in a clamping mode, one end of the fourth fixing strip is movably connected with the other end of the rear supporting rod, and the other end of the fourth fixing strip is connected with the fourth buckle in a clamping mode.

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