CN220800544U - Novel folding chair - Google Patents

Abstract

The utility model relates to a novel folding chair in the field of folding chairs, which comprises a chair leg assembly, a supporting assembly and a chair cushion, wherein the inner side surface of a connecting groove is provided with a first limiting surface vertical to a horizontal plane, one end of the chair leg, which is close to a limiting frame, is provided with a first limiting joint, one end of the inner circle part, which is close to the connecting groove, is provided with a chair leg limiting surface which is used for being contacted with the first limiting surface, one end of the supporting assembly is provided with a second limiting joint, the end surface, which is close to the first limiting joint, of a storage groove is provided with a second limiting surface, and the outer side surface of the second limiting joint is provided with a supporting limiting surface which is used for being contacted with the second limiting surface. When the chair is used, the chair leg assembly, the supporting assembly and the chair cushion are integrally connected into a whole, and the whole is locked by inward and outward force linkage, so that enough supporting force is provided for the use, and the chair is more stable and reliable; the whole operation is simple and convenient, and the chair foot component and the supporting component are wrapped by the chair cushion, so that the sharp angle positions of the chair foot component and the supporting component are not exposed, and the chair is safe and reliable.

Description

Novel folding chair

Technical Field

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

Background

The folding chair has the characteristics of folding, portability, convenient collection and small space occupation ratio, and is applied to various indoor and outdoor scenes, such as conferences, camps and the like. Folding chairs generally comprise a foldable chair frame and a cloth cover arranged on the chair frame, wherein the cloth cover is supported by the chair frame to support a human body. The chair frame typically includes a plurality of pivotally connected bars to allow relative deployment and folding.

The existing folding chair has the following defects in the actual use process: 1) The locking mechanism for locking the supporting legs is arranged, and the unlocking key is required to be pressed when the operation and the unfolding are performed, so that the unlocking action of the supporting legs is realized, meanwhile, the locking mechanism is complex as a whole, the locating rack and the main body seat are of a split type structure and are easy to damage, in the contact process of the supporting legs and the locating rack in the unfolded state, the bearable force of the locating rack is limited, the integral stress area of the locating rack is small, and the locating rack is easy to loosen, so that the stability and the reliability are influenced; 2) When accomodating, the supporting leg upwards turns to four supporting leg flush states, and flexible locating lever and seat pad will be wrapped up by the supporting leg this moment, and the supporting leg is in exposing state, and the supporting leg is the plastic part or the metalwork of many closed angles generally, exposes the very easy scraping of external supporting leg use and runs into, and this in-process removes, drops, action such as collision extremely easily causes secondary damage to other people or article, carries inconvenient moreover.

Disclosure of utility model

The utility model aims to solve the defects and provide a novel folding chair which is convenient to operate, safe and reliable, and solves the technical problems of inconvenient operation and easy scraping and collision in use in the prior art.

The object of the utility model is achieved by:

The novel folding chair comprises a chair leg assembly, a supporting assembly and a chair cushion, wherein the supporting assembly is of a telescopic rod-shaped structure, the chair leg assembly comprises a limiting frame and four chair legs with the same structure, four side ends of the limiting frame are respectively provided with equidistant connecting grooves which are communicated with each other, the inner side surface of each connecting groove is provided with a first limiting surface perpendicular to a horizontal plane, one end of each chair leg, which is close to the limiting frame, is provided with a first limiting joint, the first limiting joints of the four chair legs are respectively rotatably arranged in each connecting groove through a transversely arranged first shaft body, each first limiting joint comprises outer circle parts positioned at two sides and inner circle parts positioned between the outer circle parts, one end of each inner circle part, which is close to the connecting groove, is provided with a chair leg limiting surface which is used for contacting with the first limiting surface, the two adjacent first limiting joints are respectively connected through the adjacent inclined teeth, an outer elastic piece for always providing open elastic force for the chair legs is arranged between the first limiting joints and the limiting frames, the four chair legs can be in a state of being closed under the action of the elastic force of the outer elastic piece and the inclined teeth of the four chair legs, and can be in a state of being closed when the four chair legs are in a state of being closed, and the four-side seat legs can be in a state, and the four-side seat is in a state, and the four seat legs can be opened;

The one side that four chair feet are opposite is equipped with the storage tank that is used for holding supporting component, storage tank extends to the bottom of chair foot along the well upper portion of chair foot, supporting component's quantity is unanimous with the quantity of chair foot, a terminal of supporting component is equipped with the spacing joint of second, another terminal of supporting component is connected with the corner that the chair pad corresponds, the spacing joint of second is rotationally installed in storage tank and is close to a terminal of first spacing joint through the second axis body, storage tank is close to the terminal surface of first spacing joint and is the spacing face of second, the lateral surface of the spacing joint of second is equipped with the spacing face of support that is used for carrying out the contact with the second, when supporting component upwards is in the state of propping up, support spacing face and the spacing face looks butt of second, form relative pulling force between two adjacent corners of chair pad, when supporting component is in the state of accomodating downwards, the spacing face of support is kept away from the spacing face of second.

Furthermore, the corner bottom of chair cushion is equipped with the bight cover unanimous with supporting component quantity, and a supporting component keeps away from the second spacing joint's a terminal rotatably installs in the bight cover through the third axis body.

Further, the supporting component is composed of more than two pipe bodies, the adjacent two pipe bodies are combined to form an inner pipe structure and an outer pipe structure which can be stored in a telescopic mode, and limiting and fixing are carried out between the adjacent two pipe bodies through elastic fixing pieces.

Further, the elastic fixing piece comprises a main body part, a first elastic piece part and a second elastic piece part, wherein the first elastic piece part and the second elastic piece part are arranged in a bilateral symmetry mode along the main body part, the first elastic piece part and the second elastic piece part are integrally formed by stamping and bending metal sheets, the outer side faces of the first elastic piece part and the second elastic piece part are respectively provided with a spring buckle which is arranged in a back direction and protrudes outwards, and when the spring buckle is pressed along the opposite direction, the spring buckle can automatically reset under the action of the elastic force of the first elastic piece part and the second elastic piece part, and a limiting hole for the matched clamping into the spring buckle is formed in the pipe body. During operation, the elastic buckle in the opposite direction is pressed by the hand, so that the elastic buckle is separated from the limiting holes of the two adjacent pipe bodies, the relative positions of the two pipe bodies can be adjusted, after adjustment, the two pipe bodies are locked through the elastic buckle, the first elastic piece part and the second elastic piece part have good elasticity, and the elastic buckle and the main body part are integrally formed, so that the elastic buckle is high in stability.

Further, the outer elastic member is composed of a torsion spring, a positioning groove for installing the torsion spring is formed in the outer circle portion, one end of the torsion spring is limited in the positioning groove, and the other end of the torsion spring extends outwards and is clamped to one end of the connecting groove. Under the action of the elasticity of the torsion spring, the chair leg always has the elasticity of outwards expanding and can be automatically and synchronously opened under the linkage of the helical teeth, so that the chair leg needs to be fixed through the magic tape buckle when being stored.

Further, a foot sleeve is arranged at one end of the chair foot far away from the first limit joint, and when the four chair feet are in an unfolding state, the bottom surface of the foot sleeve is parallel to the horizontal plane.

Further, the first shaft body and the second shaft body are both composed of bolts.

Further, the chair leg and the first limit joint are formed by integral molding, and a reinforcing rib plate is arranged at the bottom of one end of the chair leg, which is far away from the storage groove. The reinforcing rib plates are additionally arranged, so that the bearing capacity and rigidity of the chair legs can be improved.

Further, the included angle between each chair leg and the vertical line of the ground is in the range of 0-90 degrees.

The beneficial effects of the utility model are as follows:

1) When the chair is in use, the four chair legs can be automatically and synchronously opened to the maximum unfolding state under the action of the elastic force of the outer elastic member and the linkage of the helical teeth, a mechanism for locking or unlocking the chair legs is not required to be additionally arranged under the action of the elastic force of the outer elastic member, when the four chair legs are in the unfolding state, the chair leg limiting surfaces are abutted against the first limiting surfaces, at the moment, the chair leg limiting surfaces are tangent to the first limiting surfaces, two opposite chair legs form a stressed triangle, the characteristics of the stress stability of the triangle are utilized, the chair legs are in the triangle stress state with mutually adjacent chair legs after being unfolded, and when the chair leg limiting surfaces are in surface contact with the first limiting surfaces, the whole stress area is large and stable; then one end of the supporting component is turned up to the maximum angle along the second shaft body to form a supporting state and pulled to an elongation state, at the moment, the supporting limiting surface is abutted against the second limiting surface to play a role of stable limiting, at the moment, the seat cushion is straightened by the four supporting components, opposite pulling force is formed between two adjacent corners of the seat cushion, so that the seat foot component, the supporting component and the seat cushion are integrally connected into a whole, at the moment, the integral limiting linkage of the folding chair is activated, the integral inward tension of the folding chair is limited by the supporting component and the seat foot component, the integral outward tension of the folding chair is limited by the seat cushion, and the integral is locked by the inward and outward force linkage to provide enough supporting force for the user;

2) When the folding type folding chair is stored, the supporting component is pressed to a shortened state firstly, then one end of the supporting component is downwards turned to the storage groove along the second shaft body, so that the supporting limiting surface is far away from the second limiting surface, at the moment, the chair cushion downwards wraps the chair leg component and the supporting component, then the chair leg is inwards pressed to overcome the elastic force of the outer elastic piece under the action of reverse force, meanwhile, the chair leg can be synchronously closed to a folding state under the linkage of the bevel gear, the chair leg limiting surface is upwards turned along the first shaft body, so that the chair leg limiting surface is far away from the first limiting surface, finally, the magic buckle wound around the periphery of the chair cushion is adopted to fix, the chair is prevented from being jacked out by the outer elastic piece after storage, the whole structure is simple, the operation is convenient, the chair leg component and the supporting component are wrapped by the chair cushion, the sharp corner positions of the chair leg component and the supporting component are not exposed, the carrying is convenient, and therefore secondary damage to a user caused by moving, dropping and collision processes can be avoided.

Drawings

FIG. 1 is a perspective view showing a storage state of a leg assembly in a novel folding chair according to the present utility model;

FIG. 2 is a front view of a seat foot assembly in an expanded state of the novel folding chair of the present utility model;

FIG. 3 is a schematic perspective view showing a top view of four legs in a novel folding chair according to the present utility model;

FIG. 4 is an enlarged schematic view of a portion of D of FIG. 3;

FIG. 5 is a schematic perspective view showing the bottom view of the unfolded four legs of the novel folding chair according to the present utility model;

FIG. 6 is a schematic perspective view showing a unfolded state of the novel folding chair according to the present utility model, wherein four sets of opposite arrows indicate opposite tensile forces;

FIG. 7 is a cross-sectional view of a novel folding chair of the present utility model;

FIG. 8 is an enlarged partial schematic view of FIG. 7A;

FIG. 9 is an enlarged partial schematic view of B in FIG. 7;

FIG. 10 is a schematic perspective view showing an elastic fixing member in a novel folding chair according to the present utility model;

FIG. 11 is a cross-sectional view of a support assembly in a novel folding chair in accordance with the present utility model;

FIG. 12 is an enlarged partial schematic view of C in FIG. 11;

FIG. 13 is a schematic perspective view showing a limit frame in a novel folding chair according to the present utility model;

in the figure, 1-chair legs, 101-first limit joints, 102-outer circle parts, 103-inner circle parts, 104-helical teeth, 105-torsion springs, 106-chair leg limit surfaces, 107-storage grooves, 108-second shaft bodies, 109-second limit surfaces, 110-foot sleeves, 2-support assemblies, 201-second limit joints, 202-support limit surfaces, 203-inner pipes, 204-outer pipes, 205-main body parts, 206-first spring plate parts, 207-second spring plate parts, 208-snap fasteners, 3-limit frames, 301-connecting grooves, 302-first limit surfaces, 303-first shaft bodies, 304-limit grooves, 4-chair cushions and 401-angle sleeves.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the detailed description.

Referring to fig. 1-13, a novel folding chair specifically implemented by the embodiment includes a chair leg assembly, a support assembly 2 and a chair cushion 1, wherein the support assembly 2 is in a rod-shaped structure with telescopic adjustment, the support assembly 2 is composed of three tubes, two adjacent tubes are combined to form an inner tube 203 and an outer tube 204 structure capable of being telescopically received, and the two adjacent tubes are limited and fixed through elastic fixing pieces.

Referring to fig. 10-12, the elastic fixing member includes a main body 205, and a first elastic piece portion 206 and a second elastic piece portion 207 symmetrically disposed along the main body 205, where the main body 205, the first elastic piece portion 206, and the second elastic piece portion 207 are integrally formed by stamping and bending metal sheets, and elastic buckles 208 disposed opposite to and protruding outward are disposed on outer sides of the first elastic piece portion 206 and the second elastic piece portion 207, and when the elastic buckles 208 are pressed in opposite directions, the elastic buckles 208 can automatically reset under the elastic force of the first elastic piece portion 206 and the second elastic piece portion 207, and limiting holes for matching the elastic buckles 208 are disposed on the pipe body. During operation, the elastic buckle 208 in the opposite direction is pressed by hand, so that the elastic buckle 208 is separated from the limiting holes of the two adjacent pipe bodies, the relative positions of the two pipe bodies can be adjusted, after adjustment, the elastic buckle 208 is used for locking, the first elastic piece part 206 and the second elastic piece part 207 have good elasticity, and the elastic buckle is integrally formed with the main body part 205, so that the stability is strong.

The chair foot assembly comprises a limiting frame 3 and four chair feet 1 with the same structure, connecting grooves 301 which are equidistant and mutually communicated are formed in four side ends of the limiting frame 3, a first limiting surface 302 perpendicular to a horizontal plane is arranged on the inner side surface of each connecting groove 301, a first limiting joint 101 is arranged at one end, close to the limiting frame 3, of each chair foot 1, the first limiting joints 101 of the four chair feet 1 are respectively and rotatably arranged in each connecting groove 301 through a first shaft 303 which is transversely arranged, the first shaft 303 is formed by bolts, each first limiting joint 101 comprises an outer circular part 102 located on two sides and an inner circular part 103 located between the outer circular parts 102, and a chair foot limiting surface 106 used for being in contact with the first limiting surface 302 is arranged at one end, close to the connecting grooves 301, of each inner circular part 103.

The outer circle part 102 is close to the one end edge of spread groove 301 and is equipped with helical tooth 104, two adjacent first spacing joints 101 all mesh through adjacent helical tooth 104 and connect, all be provided with between the first spacing joint 101 of every chair foot 1 and the spacing 3 and be used for providing the outer bullet piece of opening elasticity for chair foot 1 all the time, the outer bullet piece of this embodiment comprises torsional spring 105, the inside of outer circle part 102 is equipped with the constant head tank that is used for installing torsional spring 105, the one end of torsional spring 105 is limited in the constant head tank, the other end of torsional spring 105 outwards extends and the chucking to the one end of spread groove 301, be equipped with the spacing groove 304 that is used for mating to hold the torsional spring 105 other end specifically at the one end inner wall of spread groove 301. Under the action of the elasticity of the torsion spring 105, the chair leg 1 is always provided with the elasticity which is unfolded outwards, and can be automatically and synchronously opened under the linkage of the helical teeth 104, so that the chair leg 1 needs to be fixed through the hook and loop fastener when being stored, and the chair leg 1 can be ensured to be folded and stored under the fastening of the hook and loop fastener.

The four chair legs 1 can be automatically and synchronously opened to an unfolding state under the elastic action of the outer elastic piece and the linkage of the helical teeth 104, as shown in fig. 2-5, one end of the chair leg 1, which is far away from the first limit joint 101, is provided with a leg sleeve 110, and when the four chair legs 1 are in the unfolding state, the bottom surface of the leg sleeve 110 is parallel to the horizontal plane. When the four chair legs 1 are in the unfolded state, the chair leg limiting surfaces 106 are abutted against the first limiting surfaces 302, as shown in fig. 7-8, the four chair legs 1 can be synchronously closed to the folded state under the action of reverse force and the linkage of the bevel gears 104, and when the four chair legs 1 are in the folded state, the chair leg limiting surfaces 106 are far away from the first limiting surfaces 302.

The one side that four chair feet 1 are opposite is equipped with the storage tank 107 that is used for holding supporting component 2, and storage tank 107 extends to the bottom of chair foot 1 along the well upper portion of chair foot 1, and the quantity of supporting component 2 is unanimous with the quantity of chair foot 1, and one end of supporting component 2 is equipped with the spacing joint 201 of second, and the other end of supporting component 2 is connected with the corresponding corner of chair cushion 1, and the spacing joint 201 of second is rotatably installed in storage tank 107 and is close to one end of first spacing joint 101 through the second axis body 108, and the second axis body 108 comprises the bolt. The end surface of the storage groove 107, which is close to the first limit joint 101, is a second limit surface 109, and the outer side surface of the second limit joint 201 is provided with a supporting limit surface 202 for contacting with the second limit surface 109, as shown in fig. 7 and 9, when the supporting component 2 is in an upward supporting state, the supporting limit surface 202 is abutted against the second limit surface 109, opposite tensile force is formed between two adjacent corners of the seat cushion 1, and when the supporting component 2 is in a downward storage state, the supporting limit surface 202 is far away from the second limit surface 109.

As shown in fig. 6 and 7, the corner bottoms of the seat cushion 1 are provided with corner sleeves 401 the number of which is the same as that of the supporting components 2, and one end of the supporting component 2 far away from the second limit joint 201 is rotatably arranged in the corner sleeves 401 through a third shaft body. The chair leg 1 and the first limit joint 101 are formed by integral molding, and a reinforcing rib plate is arranged at the bottom of one end of the chair leg 1, which is far away from the storage groove 107. The reinforcing rib plates are additionally arranged, so that the bearing capacity and rigidity of the chair legs 1 can be improved.

When the four chair legs 1 are operated to be in an unfolding state in the use process, as shown in fig. 2 and 6-9, the four chair legs 1 can be automatically and synchronously unfolded to be in a maximum unfolding state under the action of the elastic force of the outer elastic member and the linkage of the inclined teeth 104, a mechanism for locking the chair legs 1 or unlocking the chair legs 1 is not needed to be additionally arranged under the action of the elastic force of the outer elastic member, when the four chair legs 1 are in the unfolding state, the chair leg limiting surfaces 106 are abutted against the first limiting surfaces 302, at the moment, the chair leg limiting surfaces 106 are in a tangential state with the first limiting surfaces 302, as shown in fig. 8, two opposite chair legs 1 form a stressed triangle, as shown in fig. 2 and 7, in the embodiment, the included angle between each chair leg and the vertical line of the ground is 44 degrees, the included angle range between each chair leg and the vertical line of the ground is 40-60 degrees, the effect is optimal, the stability is optimal, and the characteristics of triangular stressed stability are utilized, so that the chair leg 1 is in a triangular stressed state after being unfolded, when the chair leg limiting surfaces 106 are contacted with the first limiting surfaces 302, and the whole stressed area is stable. Then, one end of the supporting component 2 is turned up to the maximum angle along the second shaft 108 to form a supporting state and pulled to an extending state, as shown in fig. 6 and 7, at this time, the supporting limiting surface 202 is abutted against the second limiting surface 109 to play a stable limiting role, at this time, the seat cushion 1 is straightened by the four supporting components 2, and opposite pulling forces are formed between two adjacent corners of the seat cushion 1, so that the seat foot component, the supporting component 2 and the seat cushion 1 are integrally connected into a whole, at this time, the integral limiting linkage of the folding chair is activated, the integral inward tension of the folding chair is limited by the supporting component 2 and the seat foot component, the integral outward tension of the folding chair is limited by the seat cushion 1, and the whole is locked by the inward and outward force linkage to provide enough supporting force for the user.

When the chair is operated to a storage state in the use process, as shown in fig. 1, the supporting component 2 is firstly pressed to a shortening state, then one end of the supporting component 2 is downwards turned to the storage groove 107 along the second shaft 108, so that the supporting limiting surface 202 is far away from the second limiting surface 109, at this time, the chair cushion 1 downwards wraps the chair foot component and the supporting component 2, then the chair foot 1 is inwards pressed to the chair foot 1, the elastic force of the external elastic piece is overcome under the action of reverse force, simultaneously, the chair foot 1 can be synchronously closed to a folding state under the linkage of the helical teeth 104, the chair foot limiting surface 106 is upwards turned along the first shaft 303, the chair foot limiting surface 106 is far away from the first limiting surface 302, finally, a magic buckle wound on the periphery of the chair cushion 1 is adopted for fixing (not shown), and a rope or a button belt with the same function as the magic buckle can be used for fixing, so that the chair cushion 1 is tightly bound from the periphery of the chair cushion 1, the stable wrapping effect is achieved, the chair foot component and the chair foot 1 is not pushed open by the external elastic piece after storage is ensured, the whole structure is simple, the operation is convenient, the chair foot component and the supporting component and the cushion 2 can be synchronously closed, the chair foot component and the supporting component is prevented from being damaged, the collision and the chair cushion 2 from being carried, and the collision position is not from being caused, and the user can be conveniently and safely carried.

The foregoing is a further detailed description of the utility model in connection with specific preferred embodiments, and is not intended to limit the practice of the utility model to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions can be made without departing from the spirit of the utility model, and the scope of the utility model is to be considered as the scope of the utility model.

Claims (9)

1. The utility model provides a novel folding chair, includes chair foot subassembly, supporting component and chair cushion, and supporting component is scalable shaft-like structure of adjusting, and chair foot subassembly includes spacing and four chair feet that the structure is the same, and four side of spacing all are equipped with equidistant and the spread groove that switches on each other, its characterized in that:

The inner side surface of the connecting groove is provided with a first limiting surface perpendicular to a horizontal plane, one end of each chair leg, which is close to the limiting frame, is provided with a first limiting joint, the first limiting joints of the four chair legs are respectively and rotatably arranged in each connecting groove through a first shaft body which is transversely arranged, each first limiting joint comprises outer circle parts positioned at two sides and inner circle parts positioned between the outer circle parts, one end of each inner circle part, which is close to the connecting groove, is provided with a chair leg limiting surface which is used for being contacted with the first limiting surface, one end edge of each outer circle part, which is close to the connecting groove, is provided with a helical tooth, two adjacent first limiting joints are all in meshed connection through the adjacent helical tooth, an outer elastic piece which is used for always providing opening elastic force for the chair legs is arranged between the first limiting joint of each chair leg, the four chair legs can be automatically and synchronously opened to an unfolding state under the elastic action of the outer elastic piece and the linkage of the helical tooth, when the four chair legs are in the unfolding state, the four chair legs are in a closed state under the action of the reverse force and the helical tooth, and the four chair legs can be synchronously closed to a folding state under the action of the helical tooth, and the four chair legs are in a state, and the four chair legs are far away from the first limiting state;

The one side that four chair feet are opposite is equipped with the storage tank that is used for holding supporting component, storage tank extends to the bottom of chair foot along the well upper portion of chair foot, supporting component's quantity is unanimous with the quantity of chair foot, a terminal of supporting component is equipped with the spacing joint of second, another terminal of supporting component is connected with the corner that the chair pad corresponds, the spacing joint of second is rotationally installed in storage tank and is close to a terminal of first spacing joint through the second axis body, storage tank is close to the terminal surface of first spacing joint and is the spacing face of second, the lateral surface of the spacing joint of second is equipped with the spacing face of support that is used for carrying out the contact with the second, when supporting component upwards is in the state of propping up, support spacing face and the spacing face looks butt of second, form relative pulling force between two adjacent corners of chair pad, when supporting component is in the state of accomodating downwards, the spacing face of support is kept away from the spacing face of second.

2. A novel folding chair as claimed in claim 1, wherein: the corner bottom of chair cushion is equipped with the bight cover unanimous with supporting component quantity, and a supporting component keeps away from the second spacing joint's a terminal rotatably installs in the bight cover through the third axis body.

3. A novel folding chair as claimed in claim 1, wherein: the support assembly is composed of more than two pipe bodies, the adjacent two pipe bodies are combined to form an inner pipe structure and an outer pipe structure which can be stored in a telescopic mode, and limiting and fixing are carried out between the adjacent two pipe bodies through elastic fixing pieces.

4. A novel folding chair according to claim 3, wherein: the elastic fixing piece comprises a main body part, a first elastic piece part and a second elastic piece part, wherein the first elastic piece part and the second elastic piece part are arranged in a bilateral symmetry mode along the main body part, the first elastic piece part and the second elastic piece part are formed by punching and bending metal sheets into a whole, the outer side faces of the first elastic piece part and the second elastic piece part are provided with elastic buckles which are arranged in a back direction and outwards protruded, when the elastic buckles are pressed along opposite directions, the elastic buckles can automatically reset under the elastic action of the first elastic piece part and the second elastic piece part, and limiting holes for matching the elastic buckles are formed in the pipe body.

5. A novel folding chair according to any one of claims 1 to 4, wherein: the outer elastic piece comprises a torsion spring, a positioning groove for installing the torsion spring is formed in the outer circle portion, one end of the torsion spring is limited in the positioning groove, and the other end of the torsion spring extends outwards and is clamped to one end of the connecting groove.

6. A novel folding chair according to any one of claims 1 to 4, wherein: the chair legs are provided with a foot sleeve at one end far away from the first limiting joint, and when the four chair legs are in an unfolding state, the bottom surfaces of the foot sleeves are parallel to the horizontal plane.

7. A novel folding chair according to any one of claims 1 to 4, wherein: the first shaft body and the second shaft body are both composed of bolts.

8. A novel folding chair according to any one of claims 1 to 4, wherein: the chair leg and the first limit joint are formed by integral molding, and a reinforcing rib plate is arranged at the bottom of one end of the chair leg, which is far away from the storage groove.

9. A novel folding chair according to any one of claims 1 to 4, wherein: the included angle between each chair leg and the vertical line of the ground is 0-90 degrees.