CN213046171U - But quick assembly disassembly's foldable chair - Google Patents

Abstract

The utility model discloses a but quick assembly disassembly's foldable chair, including left chair frame and right chair frame, still including the last spring card and the lower spring card that are used for connecting the connecting stay rod of left chair frame and right chair frame and are used for the fixed connection vaulting pole, swing joint between left back vaulting pole, left handrail, left cushion vaulting pole, left front chair foot and the back chair foot in a left side, constitute left chair frame, swing joint between right back vaulting pole, right handrail, right cushion vaulting pole, right front chair foot and the back chair foot constitutes right chair frame, the other end of left cushion vaulting pole passes through the other end joint of lower spring card and right cushion vaulting pole, the upper end joint of right back vaulting pole through last spring card and left back vaulting pole. The utility model discloses in will connect the vaulting pole through upper and lower spring card and couple together, and then couple together fast between left chair frame and the right chair frame to realize chair quick assembly disassembly.

Description

But quick assembly disassembly's foldable chair

Technical Field

The utility model relates to the field of furniture, especially, relate to a but quick assembly disassembly's foldable 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.

At present, part producer carries out fixed connection to left chair frame and right chair frame through the stronger component of rigidity, and frequent dismouting makes the stronger component of rigidity produce metal fatigue easily to the equipment mode is still loaded down with trivial details, fails to laminate current consumer's requirement.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a foldable chair capable of being quickly disassembled and assembled, which can solve the problem of complex steps of disassembling and assembling the chair.

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

a folding chair capable of being quickly disassembled and assembled 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, the folding chair further comprises a connecting stay bar used for connecting the left chair frame and the right chair frame, an upper spring clamping piece and a lower spring clamping piece used for fixedly connecting the stay bar, 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 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, right side handrail and right cushion vaulting pole all with right front chair foot swing joint, back chair foot and right handrail swing joint in the right side, the other end of left side cushion vaulting pole and the one end fixed connection of lower spring card, the other end of lower spring card is through the other end joint of connecting vaulting pole and right cushion vaulting pole down, the upper end of right side back vaulting pole and the lower extreme fixed connection of last spring card, the upper end of going up the spring card is through the upper end joint of last connecting vaulting pole and left back vaulting pole.

Preferably, connect the vaulting pole down including connecting the vaulting pole body and fixed connection under the first bail of the body one end of vaulting pole, connect the vaulting pole body other end down and extend to form first spacing post to cushion vaulting pole direction right, first spacing post can be dismantled with the other end of right cushion vaulting pole and be connected, the other end of spring card is through first bail and lower connection vaulting pole body joint down.

Preferably, the other end of lower spring card extends to keeping away from left cushion vaulting pole direction and forms first extension part, the one end that the lower spring card is close to first extension part is equipped with first fixed orifices, the other end of left cushion vaulting pole outwards extends and forms a horizontal open-ended first draw-in groove, first draw-in groove and first fixed orifices intercommunication, first bail passes first draw-in groove, first fixed orifices and lower spring card joint in proper order.

Preferably, 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, go up the connection vaulting pole body other end and extend the spacing post of formation second left back vaulting pole direction, the spacing post of second can be dismantled with the other end of left back vaulting pole and be connected, go up the upper end of spring card and pass through second bail and last connection vaulting pole body joint.

Preferably, the other end of going up the spring card extends to keeping away from right back vaulting pole direction and forms the second extension part, the one end that goes up the spring card and be close to second extension part is equipped with the second fixed orifices, the upper end of right back vaulting pole outwards extends and forms a horizontal open-ended second draw-in groove, second draw-in groove and second fixed orifices intercommunication, the second bail passes second draw-in groove, second fixed orifices and last spring card joint in proper order

Preferably, inlay left locating part, left pivot, the cover on left back chair foot including the cover and inlay right locating part and right pivot on right back chair foot, the first spacing hole in left locating part upper end, the spacing hole of right locating part upper end second, its lower extreme is 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.

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.

Compared with the prior art, the beneficial effects of the utility model reside in that: through setting up lower spring card and the last spring card at left cushion vaulting pole and right back vaulting pole, realize connecting the vaulting pole and connecting the quick assembly disassembly of vaulting pole down, and then simplify assembling and dismantling the step of left chair frame and right chair frame.

Drawings

Fig. 1 is a schematic structural view of a foldable chair capable of being disassembled and assembled quickly according to the present invention.

Fig. 2 is an enlarged schematic view of the area a in fig. 1.

Fig. 3 is a schematic structural view of the left chair frame of the present invention.

Fig. 4 is a schematic structural view of the lower connection stay bar 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; 131-a first card slot; 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; 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; 323-a first restraint post; 4-spring clip on; 5-lower spring clip; 51-a first fixation hole; 52-a first extension; 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 bar 11, a left armrest 12, a left cushion support bar 13, a left front leg 14 and a left rear leg 15, the right frame 2 includes a right backrest support bar 21, a right armrest 22, a right cushion support bar 23, a right front leg 24 and a right rear leg 25, and further includes a connecting support bar 3, the connecting support bar 3 includes an upper connecting support bar 31 and a lower connecting support bar 32, one end of the left cushion support bar 13 is hinged to a lower end of the left backrest support bar 11, the left backrest support bar 11 is hinged to one end of the left armrest 12, and the left armrest 12 is disposed above the left cushion support bar 13, the left armrest 12 and the left cushion support bar 13 are both hinged to the left front leg 14, and the left rear leg 15 is hinged to the left armrest 12, the one end of right cushion vaulting pole 23 is articulated with the lower extreme of right back vaulting pole 21, and 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, the other end of left cushion vaulting pole 13 and the one end fixed connection of lower spring card 5, the other end of lower spring card 5 is through the other end joint of connecting vaulting pole 32 with right cushion vaulting pole 23 down, the upper end of right back vaulting pole 21 and the lower extreme fixed connection of last spring card 4, the upper end of going up spring card 4 is through the upper end joint of last connection vaulting pole 31 with left back vaulting pole 11.

Specifically, connect vaulting pole 32 down including connecting the vaulting pole body 321 down and connecting the first bail 322 of connecting the vaulting pole body 321 one end down, connect the vaulting pole body 321 other end down and extend to form first spacing post 323 to cushion vaulting pole 23 direction right side, first spacing post 323 can be dismantled with the other end of right cushion vaulting pole 23 and be connected, the other end of spring card 5 is connected the vaulting pole body 321 joint down through first bail 322, in this embodiment, the other end of spring card 5 extends to keeping away from left cushion vaulting pole 13 direction and forms first extension part 52 down, the one end that spring card 5 is close to first extension part 52 down is equipped with first fixed orifices 51, the other end of left cushion vaulting pole 13 outwards extends and forms a horizontal open-ended first draw-in groove 131, first draw-in groove 131 and first fixed orifices 51 intercommunication, first bail 322 passes first draw-in proper order, The first fixing hole 51 is clamped with the lower spring clamping piece 5, in addition, the other end of the right cushion stay 23 is provided with a through hole for connecting the first limit column 323, the inner diameter (5.5mm) of the through hole is slightly larger than the outer diameter (5mm) of the first limit column 323, when in installation, the first limit column 323 at the other end of the lower connecting stay body 321 is firstly inserted into the through hole at the other end of the right cushion stay 23, then the first clamping nail 322 connected at one end of the lower connecting stay body 321 is clamped into the first clamping groove 131, in the clamping process, because the first extension part 52 is arranged outwards, the tail end of the first clamping nail 322 is abutted against the inclined plane formed by the first extension part 52, and the spring clamping piece 5 has the elastic characteristic, so that the first clamping nail 322 is rapidly clamped into the first clamping groove 131, the tail end of the first clamping nail 322 is effectively prevented from colliding with the tail end of the lower spring clamping piece 5, and the service life of the chair component is prolonged, after first staple 322 blocks into first draw-in groove 131, the one end that first staple 322 kept away from lower connection vaulting pole 32 is blocked at first fixed orifices 51 simultaneously, because lower spring card 5 itself has elasticity, during the dismantlement, through pulling and pushing away first extension 52 for lower spring card 5 takes place to deform to keeping away from lower connection vaulting pole 32 direction, makes first staple 322 break away from first fixed orifices 51, then shifts out first staple 322 from first draw-in groove 131, extracts first spacing post 323 from the through-hole of the other end of right cushion vaulting pole 23 again, can accomplish the dismantlement.

Specifically, the upper connecting stay bar 31 comprises an upper connecting stay bar body and a second clamp connected with one end of the upper connecting stay bar body, the other end of the upper connecting stay bar body extends towards the left backrest stay bar 11 to form a second limiting column, the second limiting column is detachably connected with the other end of the left backrest stay bar 11, the upper end of the upper spring clamp 4 is clamped with the upper connecting stay bar body through the second clamp,

in this embodiment, the other end of the upper spring clip 4 extends towards the direction away from the right backrest brace 21 to form a second extension portion, one end of the upper spring clip 4 close to the second extension portion is provided with a second fixing hole, the other end of the right backrest brace 21 extends outwards to form a second clamping groove with a transverse opening, the second clamping groove is communicated with the second fixing hole, the second clamp nail sequentially passes through the second clamping groove and the second fixing hole to be clamped with the upper spring clip 4, in addition, the other end of the left backrest brace 11 is provided with a through hole for connecting a second limiting post, the inner diameter (5.5mm) of the through hole is slightly larger than the outer diameter (5mm) of the second limiting post, during installation, the second limiting post connected with the other end of the upper brace body is inserted into the through hole at the other end of the left backrest brace 11, and then the second clamp connected with one end of the upper brace body is clamped into the second clamping groove of the clamp nail, in the clamping process, the tail end of the second staple is abutted against the inclined plane formed by the second extension part, the lower spring clamping piece 5 has the elastic characteristic, so that the second staple is quickly clamped into the second clamping groove, the tail end of the second staple is effectively prevented from colliding with the tail end of the lower spring clamping piece 5, the service life of a chair component is prolonged, after the second staple is clamped into the second clamping groove, one end of the second staple, which is far away from the upper connecting support rod 31, is simultaneously clamped in the second fixing hole, because the upper spring clamping piece 4 has the elasticity, when the chair component is disassembled, the second extension part is pulled, so that the upper spring clamping piece 4 deforms towards the direction far away from the upper connecting support rod 31, the second staple is separated from the second fixing hole, then the second staple is moved out from the second clamping groove, and then the second limit column is pulled out from the through hole at the other end of the left back support rod 11, the disassembly can be completed.

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. 1-5, in this embodiment, when the chair is assembled, the left frame 1 and the right frame 2 are opened first, specifically, the left backrest brace 11 can be opened by rotating around the left rotation axis, and during the opening process, the left backrest brace 11 drives the left front leg 14 and the left rear leg 15 synchronously via the left armrest 12, so that the left front leg 14 and the left rear leg 15 are opened in a bifurcated manner, and the right frame 2 is opened similarly; the first limiting column 323 at the other end of the lower connecting strut bar body 321 is inserted into the through hole at the other end of the right cushion strut bar 23, the first clamp 322 of the lower connecting strut bar 32 is clamped into the first clamp groove 131 to be clamped with the left cushion strut bar 13, the first clamp 322 is pushed towards the inside of the first clamp groove 131 until the first clamp 322 is clamped by the first fixing hole 51, and similarly, the connecting strut bar 31 is installed between the right backrest strut bar 21 and the left backrest strut bar 11, so that the left chair frame 1 and the right chair frame 2 are spliced together, further, the left front chair leg 14 and the right front chair leg 24 are detachably connected with the front strut bar 7 through the first mortise and tenon joint structure (wherein, the mortise joints are arranged at the two ends of the front strut bar 7 and arranged on the left front chair leg 14 and the right front chair leg 24), the other end of the first fixing strip 71 is clamped and connected with the first buckle on the left front chair leg 14, and 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. When the folding chair is disassembled, the first extension part 52 of the lower spring clamping piece 5 is firstly pushed away towards the direction far away from the left cushion support rod 13, so that the lower spring clamping piece 5 deforms towards the direction far away from the lower connecting support rod 32, the first staple bolt 322 is separated from the first fixing hole 51, then the first staple bolt 322 is moved out of the first clamping groove 131, similarly, the connecting support rod 31 is disassembled between the right backrest support rod 21 and the left backrest support rod 11, then the fixing strip is disassembled from the corresponding chair leg, the front support rod 7 is disassembled from the space between the left front chair leg 14 and the right front chair leg 24, the rear support 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 the folding chair frame is put into a storage bag or is 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 (8)

1. The utility model provides a but quick assembly disassembly's foldable 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 in a left side, its characterized in that: the chair comprises a left chair frame, a right chair frame, a left cushion stay bar, a right cushion stay bar, an upper spring clamping piece and a lower spring clamping piece, wherein the left chair frame and the right chair frame are connected through a connecting stay bar, the upper spring clamping piece and the lower spring clamping piece are used for fixedly connecting the stay bar, 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 cushion stay bar, the left cushion stay bar is movably connected with one end of a left armrest, the left armrest and the left cushion stay bar are movably connected with a left front chair foot, the left rear chair foot is movably connected with a left armrest, one end of the right cushion stay bar is movably connected with the lower end of the right cushion stay bar, the right cushion stay bar is movably connected with one end of a right armrest, the right armrest and the right cushion stay bar are movably connected with a right front chair foot, the right rear chair foot is movably connected with the right armrest, the other end of the left cushion stay, the upper end of right side back vaulting pole and the lower extreme fixed connection of last spring card, the upper end of going up the spring card is through the upper end joint of last connecting stay pole with left back vaulting pole.

2. A quick disconnect folding chair as claimed in claim 1, wherein: connect the vaulting pole down including connecting the vaulting pole body and fixed connection under the first bail of the body one end of vaulting pole, connect the vaulting pole body other end down and extend right cushion vaulting pole direction and form first spacing post, first spacing post can be dismantled with the other end of right cushion vaulting pole and be connected, the other end of lower spring card is through first bail and lower connection vaulting pole body joint.

3. A quick disconnect folding chair as claimed in claim 2, wherein: the other end of lower spring card extends to keeping away from and forms first extension part to opening left cushion vaulting pole direction, the one end that the spring card is close to first extension part down is equipped with first fixed orifices, the other end of left cushion vaulting pole outwards extends and forms a horizontal open-ended first draw-in groove, first draw-in groove and first fixed orifices intercommunication, first bail passes first draw-in groove, first fixed orifices and lower spring card joint in proper order.

4. A quick disconnect folding chair as claimed in claim 1, wherein: go up the connection vaulting pole including connecting the vaulting pole body and fixed connection at the second bail of last connection vaulting pole body one end, go up the connection vaulting pole body other end and extend the spacing post of formation second left back vaulting pole direction, the spacing post of second can be dismantled with the other end of left back vaulting pole and be connected, go up the upper end of spring card and pass through second bail and last connection vaulting pole body joint.

5. A quick disconnect folding chair as claimed in claim 4, wherein: go up the other end of spring card and extend to keeping away from right back vaulting pole direction and form the second extension part, the one end that goes up the spring card and be close to the second extension part is equipped with the second fixed orifices, the upper end of right back vaulting pole outwards extends and forms a horizontal open-ended second draw-in groove, second draw-in groove and second fixed orifices intercommunication, the second bail passes second draw-in groove, second fixed orifices and last spring card joint in proper order.

6. A quick disconnect folding chair as claimed in claim 1, wherein: the left limiting part, the left rotating shaft and the right rotating shaft are embedded on the left rear chair foot, the sleeve is embedded on the right limiting part and the right rotating shaft, the first limiting hole is formed in the upper end of the left limiting part, the second limiting hole is formed in the upper end of the right limiting part, the lower end of the right limiting part is provided with a second connecting hole, the first limiting hole and the left cushion supporting rod are movably connected with the left backrest supporting rod through the left rotating shaft, the left rear chair foot is movably connected with the first connecting hole, the second limiting hole and the right cushion supporting rod are movably connected with the right backrest supporting rod through the right rotating shaft, and the right rear chair foot is movably connected with the second connecting hole.

7. A quick disconnect folding 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. A quick disconnect, fold able 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.

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