CN216822412U - Chair with parquets - Google Patents

Abstract

The utility model discloses a chair with parquet, include: a first support structure for seating of a human body, including a first support frame and a first support panel; a second support structure for resting a person, comprising a second support frame and a second support panel; first supporting panel and/or second supporting panel include the parquet panel that forms by the concatenation of a plurality of concatenation unit, and the concatenation unit is formed by monomer one, monomer two and the mutual concatenation of monomer tee junction first tenon fourth of the twelve earthly branches connection structure, the polyhedron component is set to monomer one, monomer two and monomer three. The utility model provides a pair of chair with parquet, its first supporting panel and/or second supporting panel include the parquet panel, and the concatenation of a plurality of monomers of this parquet panel accessible forms abundant wood grain molding pattern, and processing is convenient, has improved production efficiency greatly, and wood grain molding pattern is on the coplanar, and the cleanness of being convenient for, and the structure steadiness is good, has prolonged the life of chair.

Description

Chair with parquets

Technical Field

The utility model relates to the field of furniture, especially, relate to a chair with parquet.

Background

The chair is a daily-life furniture, a seat with a backrest and armrests. Modern chairs pursue beauty and fashion, and some chairs are not used as seats alone, so that the life of people is more convenient under the combination of science and technology. The chairs are various, and the chairs are commonly used in life and belong to a backrest chair, the chairs can be called as the backrest chairs without armrests, and the backrest chairs are frequently provided with a plurality of styles and are also known differently due to the change of the armrests and the armrests.

In recent years, mahogany furniture is more and more favored by consumers due to the characteristics of bright color, elegant and exquisite color and stable wood property, cultural connotation and durability, beautiful patterns of the wood can be seen on the surface of the furniture, the mahogany furniture is arranged in many families and offices, and chairs made of mahogany wood also become symbols of quality and identity. In order to show different styles and cultures, characters, patterns or patterns are often engraved on a back board, a seat board or an armrest board of a chair for decoration, for example, an antique carved multifunctional hardwood chair (publication No. CN205093922U) for guests is disclosed in the prior art, a side-engraved pattern board is arranged on the side surface between a chair leg and a chair seat, a carved back board is arranged between an arc back armrest and the chair seat, the shape is elegant, and the chair is decorated by the carved back board and the side-engraved pattern board, so that the classical atmosphere of the chair is increased, and the appearance of the chair is higher.

The existing wood chairs have the following defects: (1) the engraving process of the chair is complex and the yield is low; (2) the carved dent is easy to accumulate dust, and is not convenient to clean; (3) based on the inherent characteristics of wood, namely low expansion rate and high breaking strength along the wood grain direction and high expansion rate and low breaking strength along the vertical direction of the wood grains, the large-scale wood is easy to have extrusion deformation, shrinkage cracking and the like after being used for a long time due to the fact that the wood grain directions of all parts of the large-scale wood are basically consistent, and the service life of the chair is short.

Disclosure of Invention

The utility model discloses not enough to prior art, provide a chair with parquet, its first supporting panel and/or second supporting panel include the parquet panel that is formed by the concatenation of a plurality of concatenation unit, and the concatenation of a plurality of monomers of this parquet panel accessible forms abundant wood grain molding pattern, and processing is convenient, has improved production efficiency greatly, and wood grain molding pattern is on the coplanar, and the cleanness of being convenient for, and the structure steadiness is good, has prolonged the life of chair.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

a chair with parquet comprising:

the first support structure is used for taking a human body and comprises a first support frame and a first support panel arranged on the first support frame through a second mortise-tenon joint structure;

the second support structure is connected with the first support structure and used for leaning against a human body, and comprises a second support frame and a second support panel arranged on the second support frame through a third tenon-and-mortise connection structure;

the first support panel and/or the second support panel comprise a parquet plate spliced by a plurality of splicing units, each splicing unit is formed by splicing a single body I, a single body II and a single body III through a first mortise-tenon joint structure, the single body I, the single body II and the single body III are arranged into a polyhedral member, the single body I is provided with a first outer end face and a second outer end face, the single body II is provided with a third outer end face and a fourth outer end face, the single body III is provided with a fifth outer end face and a sixth outer end face, the first outer end face and the third outer end face are spliced with each other along the length direction, the second outer end face and the fifth outer end face are spliced with each other along the length direction, the fourth outer end face and the sixth outer end face are spliced with each other along the length direction, the spliced single body I is provided with a first upper surface, the single body II is provided with a second upper surface, and the single body III is provided with a third upper surface, the first upper surface, the second upper surface and the third upper surface are positioned on the same horizontal plane.

Preferably, the line direction of monomer one sets up to follow first line direction, first line is followed first upper surface and is appeared, the line direction of monomer two sets up to follow second line direction, the second line is followed the second upper surface and is appeared, the line direction of monomer three sets up to follow third line direction, third line is followed the third upper surface and is appeared, second line and third line syntropy, first line and second line or third line syntropy are not equidirectional.

Preferably, the first mortise-tenon joint structure includes a first protruding block portion and a first groove portion for being in fit connection with the first protruding block portion, a first group of the first protruding block portion and the first groove portion are respectively arranged along the first outer end face and the third outer end face, a second group of the first protruding block portion and the first groove portion are respectively arranged along the second outer end face and the fifth outer end face, and a third group of the first protruding block portion and the first groove portion are respectively arranged along the fourth outer end face and the sixth outer end face;

or the first mortise-tenon joint structure comprises two first groove portions which are oppositely arranged and a first connecting strip connected between the two first groove portions, one end of the first connecting strip is connected with one first groove portion in a matched mode, the other end of the first connecting strip is connected with the other first groove portion in a matched mode, the first group of two first groove portions are arranged along the first outer end face and the third outer end face respectively, the second group of two first groove portions are arranged along the second outer end face and the fifth outer end face respectively, and the third group of two first groove portions are arranged along the fourth outer end face and the sixth outer end face respectively.

Preferably, the first groove portion is formed by integrally recessing an outer end surface of the first monomer, the second monomer or the third monomer by a certain depth, the first groove portion has a first upper surface, a first protruding portion on one side of the first groove portion on the first monomer, the second monomer or the third monomer has a second upper surface, and the first upper surface is connected with the second upper surface and is located on the same horizontal plane.

Preferably, first upper surface and second upper surface junction are formed with first border, and second upper surface and third upper surface junction are formed with the second border, and first upper surface and third upper surface junction are formed with the third border, first line is parallel along first border or third border, second line and third line are parallel along the second border, first border, second border and third border are first interior angle, second interior angle and third interior angle along the angle of two liang of formations, the angle sum of first interior angle, second interior angle and third interior angle is 360.

Preferably, the first monomer, the second monomer and the third monomer or all are provided as different members.

Preferably, the single body I, the single body II and the single body III are arranged into the same member;

the first outer end face and the third outer end face are equal in length along the length direction, the second outer end face and the fifth outer end face are equal in length along the length direction, and the fourth outer end face and the sixth outer end face are equal in length along the length direction;

the first interior angle, the second interior angle and the third interior angle are respectively set to be 120 degrees, and the vertexes of the first interior angle, the second interior angle and the third interior angle are converged on an M point.

Preferably, the first single body, the second single body and the third single body are arranged to be diamond-shaped members, and the first edge, the second edge and the third edge are arranged to be equal in length;

the first single body, the second single body and the third single body are respectively provided with a 120-degree inner angle and a 60-degree inner angle, two outer end faces adjacent to the same 60-degree inner angle on the first single body, the second single body and the third single body are respectively provided with a first protruding block portion, and the other two outer end faces are respectively provided with a first groove portion.

Preferably, the second mortise-tenon joint structure includes a second protruding block portion and a second groove portion for being in fit connection with the second protruding block portion, and the second protruding block portion and the second groove portion are respectively arranged along the outer end face of the first support panel and the outer end face of the first support frame;

the third mortise-tenon joint structure comprises a third bump part and a third groove part which is used for being matched and connected with the third bump part, and the third bump part and the third groove part are respectively arranged along the outer end face of the second supporting panel and the outer end face of the second supporting frame.

Preferably, the second supporting frame is connected to the upper part of the first supporting frame through a fourth mortise-tenon joint structure;

the second lug part and the third lug part are respectively outer end parts of the first support panel and/or the second support panel and/or are respectively protruding structures protruding outwards from the outer end surface of the first support panel and/or the second support panel, the second groove part is a groove structure formed by inwards recessing the outer end surface of the first support frame, and the third groove part is a groove structure formed by inwards recessing the outer end surface of the second support frame;

the first supporting frame comprises at least four supporting seat rods, the supporting seat rods are sequentially in mortise-tenon joint end to form the first supporting frame, a first mounting area for mounting a first supporting panel is formed in the first supporting frame, the shape of the first supporting panel is matched with that of the first mounting area, and second groove portions for mounting the first supporting panel are respectively arranged on the outer end faces, close to the first mounting area, of the supporting seat rods;

the second supporting frame comprises at least two supporting back rods, at least one back cross rod, at least two back plate supporting rods and at least two back plate cross rods, the lower ends of the supporting back rods are respectively connected with the upper parts of the supporting seat rods in a mortise-tenon manner, the upper ends of the supporting back rods are respectively connected with the lower parts of the back cross rods in a mortise-tenon manner, the upper ends of the supporting back rods are respectively connected with the positions, close to the two end parts, on the back cross rods, the lower ends of the back plate supporting rods are respectively connected with the upper parts of the supporting seat rods in a mortise-tenon manner, the upper ends of the back cross rods are respectively connected with the lower parts of the back cross rods in a mortise-tenon manner, one end of each back plate cross rod is respectively connected with one back plate supporting rod in a mortise-tenon manner, the other end of each back plate cross rod is respectively connected with the other back plate supporting rod in a mortise-tenon manner, the back plate supporting rods are arranged at intervals, the back plate supporting back plate cross rods are respectively arranged at intervals with the supporting back cross rods and the supporting seat rods, a second mounting area for mounting a second supporting panel is formed between the back plate supporting rod and the two back plate cross rods, the shape of the second supporting panel is matched with that of the second mounting area, and third groove parts for mounting the second supporting panel are respectively arranged on the back plate supporting rod and the back plate cross rods and close to the outer end faces of the second mounting area;

still include third bearing structure and fourth bearing structure, the third bearing structure is connected in first braced frame's lower part through fifth mortise-tenon joint structure for support first braced structure and keep away from the loading end, one side of fourth bearing structure is connected on first braced frame's upper portion through sixth mortise-tenon joint structure, and the opposite side is connected in second braced frame's front portion through seventh mortise-tenon joint structure, can be used to the hasty.

The utility model discloses gain following beneficial effect:

(1) the utility model provides a chair, which comprises a first supporting structure for a human body to take and a second supporting structure for the human body to lean against, wherein the first supporting structure comprises a first supporting frame and a first supporting panel arranged on the first supporting frame through a second mortise-tenon joint structure, the second supporting structure comprises a second supporting frame and a second supporting panel arranged on the second supporting frame through a third mortise-tenon joint structure, the first supporting panel and/or the second supporting panel comprise a mosaic plate spliced by a plurality of splicing units, the splicing units are formed by splicing a single body I, a single body II and a single body tee through the first mortise-tenon joint structure, the single body I, the single body II and the single body tee are arranged into a polyhedral component, the single body I is provided with a first outer end face and a second outer end face, the single body II is provided with a third outer end face and a fourth outer end face, the single body III is provided with a fifth outer end face and a sixth outer end face, the first outer end face and the third outer end face are spliced with each other along the length direction, the second outer end face and the fifth outer end face are spliced with each other along the length direction, the fourth outer end face and the sixth outer end face are spliced with each other along the length direction, the spliced single body I is provided with a first upper surface, the single body II is provided with a second upper surface, the single body III is provided with a third upper surface, the first upper surface, the second upper surface and the third upper surface are positioned on the same horizontal plane, so that splicing units and the upper surfaces of the spliced boards are formed, and the boards are formed by combining a plurality of splicing units formed by small single bodies, so that the wood grain directions of a plurality of single bodies can be set to be different, the natural textures of wood can be favorably formed into various colorful wood grain modeling patterns, and the patterns of the first supporting panel and/or the second supporting panel are more diversified, The wood grain modeling pattern is attractive and novel, and is formed by splicing a plurality of small monomers, so that compared with carving, the wood grain modeling pattern is more convenient and flexible to process, and the production efficiency is greatly improved;

(2) the chair provided by the utility model has the advantages that the first upper surface, the second upper surface and the third upper surface are positioned on the same horizontal plane, namely, the wood grain modeling patterns are positioned on the same plane, so that compared with the dent patterns generated by carving, the chair is easier and more convenient to clean;

(3) the utility model provides a chair, because the parquet panel is formed by the concatenation of a plurality of miniature monomer, can freely select the free grain direction to arrange during the concatenation, compare the panel of a monoblock big timber or the panel that forms through the concatenation of polylith large-scale timber, when the grain direction of adjacent monomer arranges to the equidirectional, the free concertina rate and the flexural strength of each different grain direction can complement each other, make the steadiness of plate structure better, be difficult for warping, fracture, durable more, the life of first support panel and/or second support panel and chair has greatly prolonged;

(4) the utility model provides a chair, because the parquet panel is formed by the miniature monomer concatenation of a plurality of, small-size monomer convenient for material collection, the low price, and the monomer of the different quantity of accessible arrange the combination and form panel of different shapes, size, production and processing is got up more in a flexible way, compares from cutting out required panel on the big timber of a monoblock or form required panel through the concatenation of the large-scale timber of polylith, the utility model discloses a corner timber that produces in the production manufacturing process still can the make full use of to the parquet panel, not only the cost is reduced, has still improved ligneous utilization ratio, practices thrift timber resources more, environmental protection more.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic view of an overall structure of a chair according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the exploded structure of fig. 1.

Fig. 3 is a schematic structural view of a parquet plate according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a splicing unit according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of the exploded structure of fig. 4.

Fig. 6 is a schematic view of a partial structure of the splicing unit according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a parquet plate according to another embodiment of the present invention.

Fig. 8 is an exploded view of a portion of the structure of fig. 7.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be 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 according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise direct contact between the first and second features, but rather may be in contact with another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1-6, as an embodiment of the present invention, a chair with parquet is disclosed, preferably made of wood, especially redwood, comprising a first support structure 6 and a second support structure 7, wherein the first support structure 6 is used for taking a human body, the first support structure 6 comprises a first support frame 61 and a first support panel 62 mounted on the first support frame 61 through a second mortise and tenon connection structure. The second supporting structure 7 is connected with the first supporting structure 6 for leaning of a human body, and the second supporting structure 7 comprises a second supporting frame 71 and a second supporting panel 72 which is installed on the second supporting frame 71 through a third mortise-tenon joint structure 5. In this embodiment, the second supporting panel 72 includes the parquet plate 100 formed by splicing a plurality of splicing units 10, such that the second supporting panel 72 has a wood grain pattern configuration, of course, in other embodiments, the first supporting panel 62 may also be configured to include the parquet plate 100 formed by splicing a plurality of splicing units 10, such that the first supporting panel 62 has a wood grain pattern configuration, or both the first supporting panel 62 and the second supporting panel 72 may be configured to include the parquet plate 100 formed by splicing a plurality of splicing units 10, such that the first supporting panel 62 and the supporting panel 72 have a wood grain pattern configuration. The mosaic plate 100 is formed by splicing a plurality of splicing units 10, each splicing unit 10 is formed by splicing a first monomer 1, a second monomer 2 and a third monomer 3 through a first mortise-tenon connection structure 4, each first monomer 1, each second monomer 2 and each third monomer 3 are arranged into a polyhedral member, each first monomer 1 is provided with a first outer end face 11 and a second outer end face 12, each second monomer 2 is provided with a third outer end face 21 and a fourth outer end face 22, each third monomer 3 is provided with a fifth outer end face 31 and a sixth outer end face 32, each first outer end face 11 and each third outer end face 21 are spliced with each other along the length direction, each second outer end face 12 and each fifth outer end face 31 are spliced with each other along the length direction, each fourth outer end face 22 and each sixth outer end face 32 are spliced with each other along the length direction, each spliced first monomer 1 is provided with a first upper surface 13, each second monomer 2 is provided with a second upper surface 23, each third monomer 3 is provided with a third upper surface 33, each first upper surface 13, each first upper surface, each second upper surface 13, and each third surface, Second upper surface 23 and third upper surface 33 are located same horizontal plane, thereby form the upper surface of concatenation unit 10 and parquet panel 100, because this panel is formed by the combination of a plurality of concatenation units 10 that small-size monomer is constituteed, consequently can set up a plurality of free wood grain directions into not equidirectional, thereby do benefit to ligneous natural texture to form various rich and varied wood grain molding pattern, make the pattern of this second supporting panel 72 more various, and pleasing to the eye and novel, and this wood grain molding pattern is formed by the concatenation of a plurality of small-size monomers, compare the sculpture, it is more convenient to process, and is flexible, and the production efficiency is greatly improved. And since the first, second and third upper surfaces 13, 23 and 33 are located at the same level, i.e., the wood grain pattern is on the same plane, cleaning is easier and more convenient than the pattern of dents created by carving. In addition, because parquet panel 100 is formed by the miniature monomer concatenation of a plurality of, can freely select the free wood grain direction to arrange during the concatenation, compare the panel of a monoblock big timber or the panel that forms through the concatenation of the large-scale timber of polylith, arrange when adjacent free wood grain direction is not equidirectional, the free rate of expansion and contraction and the flexural strength of each different wood grain direction can complement each other, make the steadiness of panel structure better, be difficult to warp, the fracture, durable more, the life of second supporting panel 72 and chair has been prolonged greatly. Simultaneously, because the mosaic plate material 100 is formed by the miniature monomer concatenation of a plurality of, small-size monomer convenient for material collection, the low price, the monomer of the different quantity of accessible carries out permutation and combination and forms the panel of different shapes, size, and production and processing is got up more in a flexible way, compares and cuts required panel or forms required panel through the concatenation of the large-scale timber of polylith from a monoblock big timber, the utility model discloses a but the corner timber that produces in the make full use of production manufacturing process still of mosaic plate material 100 not only reduces the cost, has still improved ligneous utilization ratio, practices thrift timber resources more, environmental protection more.

As shown in fig. 4, as the embodiment of the present invention, the junction of the first upper surface 13 and the second upper surface 23 is formed with a first edge X, the junction of the second upper surface 23 and the third upper surface 33 is formed with a second edge Y, the junction of the first upper surface 13 and the third upper surface 33 is formed with a third edge Z, and the angles formed by the first edge X, the second edge Y and the third edge Z in pairs are the first inner angle a, the second inner angle b and the third inner angle c. For convenience of illustration in this embodiment, the first inner angle a is an angle between the first edge X and the second edge Y, the second inner angle b is an angle between the second edge Y and the third edge Z, and the third inner angle c is an angle between the first edge X and the third edge Z. First interior angle a, the angle sum of second interior angle b and third interior angle c is 360, splice unit 10's monomer 1 promptly, two 2 and three 3 two liang amalgamations of monomer make first upper surface 13, second upper surface 23 and third upper surface 33 enclose to close and form a bigger upper surface, first border X, second border Y and third border Z are located same horizontal plane, first upper surface 13, second upper surface 23 and third upper surface 33 are located same horizontal plane, make splice unit 10's upper surface be a horizontal plane, these horizontal planes form the upper surface of parquet panel 100 jointly promptly after a plurality of splice unit 10 each other amalgamation, make the upper surface of parquet panel 100 be a horizontal plane, thereby be applicable to in the furniture of various needs plane panel.

As shown in fig. 4, as an embodiment of the present invention, the grain direction of the first single body 1 is set to be directed along the first grain 14, the first grain 14 is presented along the first upper surface 13, that is, the first grain 14 is arranged in parallel with the first upper surface 13, and the grain direction of the first grain 14 can be seen on the first upper surface 13; the grain direction of the monomer II 2 is set to be guided along the second grain 24, the second grain 24 is presented along the second upper surface 23, namely the second grain 24 and the second upper surface 23 are arranged in parallel, and the grain trend of the second grain 24 can be seen on the second upper surface 23; the grain direction of the single third 3 is set to be directed along the third grain 34, and the third grain 34 is present along the third upper surface 33, that is, the third grain 34 and the third upper surface 33 are arranged in parallel, and the grain direction of the third grain 34 can be seen on the third upper surface 33. Through various permutation and combination of the first grains 14, the second grains 24 and the third grains 34, various colorful visual modeling patterns are presented, and the single bodies arranged in different directions of the grain directions jointly present staggered grain trends, so that the aesthetic feeling of a stereoscopic modeling pattern is presented. Because of the inherent characteristics of wood, the refractive indexes of the wood grain and the wood grain are different, and therefore, the stereoscopic modeling pattern is more obvious under the irradiation of the light rays with different angles. In this embodiment, the second ridges 24 and the third ridges 34 are arranged in the same direction, and the first ridges 14 and the second ridges 24 or the third ridges 34 are arranged in different directions, specifically, the first ridges 14 are parallel to the first edge X, and the second ridges 24 and the third ridges 34 are parallel to the second edge Y, so that the first ridges 14 of the first upper surface 13, the second ridges 24 of the second upper surface 23, and the third ridges 34 of the third upper surface 33 are combined to form a stereoscopic modeling pattern, but in other embodiments, the first ridges 14 may also be arranged in parallel to the third edge Z, so as to form a pattern similar to the stereoscopic modeling pattern.

As shown in fig. 5, as an embodiment of the present invention, the first mortise-tenon connecting structure 4 includes a first protruding portion 41 and a first groove portion 42 for being connected with the first protruding portion 41 in a matching manner, specifically, the first protruding portion 41 and the first groove portion 42 of the first group are respectively disposed along the first outer end surface 11 and the third outer end surface 21 of each splicing unit 10, and the first protruding portion 41 of the first group extends into the first groove portion 42, so that the first outer end surface 11 and the third outer end surface 21 are tightly spliced together along the length direction; the first protruding block portion 41 and the first groove portion 42 of the second group are respectively arranged along the second outer end surface 12 and the fifth outer end surface 31 of each splicing unit 10, and the first protruding block portion 41 of the second group extends into the first groove portion 42, so that the second outer end surface 12 and the fifth outer end surface 31 are tightly spliced together along the length direction; the first protruding portions 41 and the first groove portions 42 of the third group are respectively disposed along the fourth outer end surface 22 and the sixth outer end surface 32 of each splicing unit 10, and the first protruding portions 41 of the third group extend into the first groove portions 42, so that the fourth outer end surface 22 and the sixth outer end surface 32 are tightly spliced together along the length direction. In this embodiment, the first protruding block portion 41 is respectively integrated with the first single body 1, the second single body 2 and the third single body 3, so that the structure is stable, and is more durable.

As shown in fig. 6, as an embodiment of the present invention, the first groove portion 42 is formed by integrally recessing an outer end surface of the first single body 1, the second single body 2 or the third single body 3 to a certain depth, so that the first protruding block portion 41 is extended into the first groove portion 42 from one side of the first groove portion 42 and slides into the other side of the first groove portion 42 along the first groove portion 42, thereby facilitating the splicing. The first groove portion 42 is provided with a first upper surface 421, the first upper surface 421 is located on the inner end face of the first groove portion 42, the first protruding block portion 41 on one side of the first groove portion 42 on the first monomer 1, the second monomer 2 or the third monomer 3 is provided with a second upper surface 411, the second upper surface 411 is located on the outer side face of the first protruding block portion 41, and the first upper surface 421 is connected with the second upper surface 411 and is located on the same horizontal plane, so that the first upper surface 421 and the second upper surface 411 can be machined at the same time, machining procedures are simplified, grooving machining of the first groove portion 42 and machining of the first protruding block portion 41 are facilitated, and production and machining efficiency is improved. Of course, in other embodiments, the first upper surface 421 and the second upper surface 411 may also be disposed on different horizontal planes, and it is also possible to achieve a tight splicing between the first outer end surface 11 and the third outer end surface 21, a tight splicing between the second outer end surface 12 and the fifth outer end surface 31, and a tight splicing between the fourth outer end surface 22 and the sixth outer end surface 32, so that the first single body 1, the second single body 2, and the third single body 3 are tightly connected two by two.

As shown in fig. 4, as an embodiment of the present invention, the single body 1, the single body two 2 and the single body three 3 are set as the same member, that is, the shapes and sizes of the single body 1, the single body two 2 and the single body three 3 are completely consistent, so that the mass production and the production are convenient, and the splicing process is easier. In this embodiment, the first outer end surface 11 and the third outer end surface 21 are arranged at equal length along the length direction, the second outer end surface 12 and the fifth outer end surface 31 are arranged at equal length along the length direction, and the fourth outer end surface 22 and the sixth outer end surface 32 are arranged at equal length along the length direction, so that the first outer end surface 11 and the third outer end surface 21 are completely butted and tightly spliced together, the second outer end surface 12 and the fifth outer end surface 31 are completely butted and tightly spliced together, and the fourth outer end surface 22 and the sixth outer end surface 32 are completely butted and tightly spliced together. The first inner angle a, the second inner angle b and the third inner angle c are respectively set to be 120 degrees, the vertexes of the first inner angle a, the second inner angle b and the third inner angle c are converged at a point M, namely, one ends of the first edge X, the second edge Y and the third edge Z are converged at the point M, so that the first upper surface 13, the second upper surface 23 and the third upper surface 33 are spliced into a complete and completely closed horizontal plane, a plurality of splicing units 10 form a large-scale complete and completely closed splicing plate 100, in other embodiments, the vertexes of the first inner angle a, the second inner angle b and the third inner angle c can not be converged at the same point, namely, one ends of the first edge X, the second edge Y and the third edge Z are not converged at the same point, so that the first upper surface 13, the second upper surface 23 and the third upper surface 33 are spliced into a horizontal plane with a hollow-out structure middle area, a plurality of the splice units 10 form a large hollow-out splice panel 100. Of course, in other embodiments, any two or all of the single bodies 1, 2 and 3 can be configured as different members, so that the splicing unit 10 and the parquet plate 100 have more various and varied wood grain patterns.

As shown in fig. 4, as an embodiment of the present invention, the single body 1, the single body two 2 and the single body three 3 are set as diamond-shaped members, and the first edge X, the second edge Y and the third edge Z are set to be equal in length, so that the first texture 14 of the first upper surface 13, the second texture 24 of the second upper surface 23 and the third texture 34 of the third upper surface 33 are combined to form a cubic stereoscopic modeling pattern. The single body 1 is provided with a first lower surface located on the opposite surface of the first upper surface 13, the single body 2 is provided with a second lower surface located on the opposite surface of the second upper surface 23, the single body three 3 is provided with a third lower surface located on the opposite surface of the third upper surface 33, the first lower surface is arranged in parallel with the first upper surface 13, the second lower surface 23 is arranged in parallel with the second upper surface 23, and the third lower surface is arranged in parallel with the third upper surface 33, so that the upper surfaces and the lower surfaces of the splicing units 10 spliced by the single body 1, the single body two 2 and the single body three 3 are respectively located on two parallel horizontal planes, and the plurality of splicing units 10 are spliced to form the flat-plate-shaped splicing plate 100. In this embodiment, the first single body 1, the second single body 2, and the third single body 3 all have an inner angle of 120 ° and an inner angle of 60 °, two outer end surfaces of the first single body 1, the second single body 2, and the third single body 3 adjacent to the same inner angle of 60 ° are respectively provided with the first protruding block portion 41, and the other two outer end surfaces are respectively provided with the first groove portion 42, so that the shape, size, and wood grain direction of each single body on the parquet sheet 100 are all set to be the same configuration, which is convenient for the same batch production. A second outer end face 12 on the first single body 1 and an outer end face forming an included angle of 60 degrees with the second outer end face 12 are respectively provided with a first protruding block portion 41, and a first outer end face 11 on the first single body 1 and an outer end face forming an included angle of 60 degrees with the first outer end face 11 are respectively provided with a first groove portion 42; a third outer end face 21 on the second single body 2 and an outer end face forming an included angle of 60 degrees with the third outer end face 21 are respectively provided with a first protruding block portion 41, and a fourth outer end face 22 on the second single body 2 and an outer end face forming an included angle of 60 degrees with the fourth outer end face 22 are respectively provided with a first groove portion 42; a sixth outer end face 32 on the third single body 3 and an outer end face forming an included angle of 60 degrees with the sixth outer end face 32 are respectively provided with a first convex block portion 41, a fifth outer end face 31 on the third single body 3 and an outer end face forming an included angle of 60 degrees with the fifth outer end face 31 are respectively provided with a first groove portion 42, so that the first single body 1 is in mortise-tenon connection with the first convex block portion 41 on the third outer end face 21 of the second single body 2 through the first groove portion 42 on the first outer end face 11, the second single body 2 is in mortise-tenon connection with the first convex block portion 41 on the sixth outer end face 32 of the third single body 3 through the first groove portion 42 on the fourth outer end face 22, and the third single body 3 is in mortise-tenon connection with the first convex block portion 41 on the second outer end face 12 of the first single body 1 through the first groove portion 42 on the fifth outer end face 31; the first groove portion 42 on one outer end face of the first single body 1, which has an included angle of 60 degrees with the first outer end face 11, is mortise-tenon connected to the first protrusion portion 41 on one outer end face of the other splicing unit 10, which has an included angle of 60 degrees with the sixth outer end face 32, the first protrusion portion 41 on one outer end face of the first single body 1, which has an included angle of 60 degrees with the second outer end face 12, is mortise-tenon connected to the first groove portion 42 on one outer end face of the other splicing unit 10, which has an included angle of 60 degrees with the fourth outer end face 22, the first protrusion portion 41 on one outer end face of the second single body 2, which has an included angle of 60 degrees with the third outer end face 21, is mortise-tenon connected to the first groove portion 42 on one outer end face of the other splicing unit 10, which has an included angle of 60 degrees with the fifth outer end face 31, the first groove portion 42 on one outer end face of the second single body 2, which has an included angle of 60 degrees with the fourth outer end face 22, is mortise-tenon connected to the first groove portion 42 on one outer end face of 60 degrees with the other splicing unit 10, and the first single body 1 of the other splicing unit 10, which has an included angle of 60 degrees with the second outer end face 12 The first bump portions 41 on the outer end faces are connected together in a mortise-tenon manner, the first groove portion 42 on one outer end face, which has an included angle of 60 degrees with the fifth outer end face 31, on the third unit 3 and the first bump portion 41 on one outer end face, which has an included angle of 60 degrees with the third outer end face 21, on the second unit 2 of another splicing unit 10, the first bump portion 41 on one outer end face, which has an included angle of 60 degrees with the sixth outer end face 32, on the third unit 3 and the first groove portion 42 on one outer end face, which has an included angle of 60 degrees with the first outer end face 11, on the first unit 1 of another splicing unit 10, so that a plurality of units are spliced together in a mortise-tenon manner through the mortise-tenon connection between the first bump portions 41 and the second groove portions 42, thereby forming the spliced board 100. Of course, in other embodiments, the second outer end surface 12 on the single body 1 and an outer end surface forming an angle of 60 ° with the second outer end surface 12 may be respectively provided with the first groove portion 42, the first outer end surface 11 on the single body 1 and an outer end surface forming an angle of 60 ° with the first outer end surface 11 are respectively provided with the first protrusion portion 41, the third outer end surface 21 on the single body 2 and an outer end surface forming an angle of 60 ° with the third outer end surface 21 are respectively provided with the first groove portion 42, and the fourth outer end surface 22 on the single body 2 and an outer end surface forming an angle of 60 ° with the fourth outer end surface 22 are respectively provided with the first protrusion portion 41; the sixth outer end face 32 on the single body three 3 and an outer end face forming an angle of 60 degrees with the sixth outer end face 32 are respectively provided with the first groove portion 42, and the fifth outer end face 31 on the single body three 3 and an outer end face forming an angle of 60 degrees with the fifth outer end face 31 are respectively provided with the first protruding block portion 41, which also has the same effect.

As shown in fig. 2, as an embodiment of the present invention, the third mortise and tenon connecting structure 5 includes a third protruding block portion 51 and a third groove portion 52 for being connected with the third protruding block portion 51 in a matching manner, the third protruding block portion 51 and the third groove portion 51 are respectively disposed along the outer end surface of the second supporting panel 72 and the outer end surface of the second supporting frame 71, and extend into the third groove portion 52 through the third protruding block portion 51, so that the outer end surface of the second supporting panel 72 and the outer end surface of the second supporting frame 71 are closely spliced together. Of course, in other embodiments, the second mortise and tenon connecting structure may also be configured to include a second protruding block portion and a second groove portion for being in fit connection with the second protruding block portion, the second protruding block portion and the second groove portion are respectively disposed along the outer end face of the first support panel 62 and the outer end face of the first support frame 61, and the outer end face of the first support panel 62 and the outer end face of the first support frame 61 are tightly spliced together by the second protruding block portion extending into the second groove portion.

As shown in fig. 2, as an embodiment of the present invention, the second supporting frame 71 is connected to the upper portion of the first supporting frame 61 through a fourth mortise-tenon joint structure, so as to facilitate assembling. The third protruding portion 51 is formed by an outer end portion of the second supporting panel 72, and the third groove portion 52 is a groove structure formed by inwardly recessing from an outer end surface of the second supporting frame 71, so that the second supporting panel 72 and the second supporting frame 71 extend into the third groove portion 52 through the outer end portion of the second supporting panel 72 for mortise and tenon connection. Of course, in other embodiments, the third protruding block 51 may also be a protruding structure protruding outward from the outer end of the second supporting panel 72, so that the second supporting panel 72 and the second supporting frame 71 extend into the groove structure through the protruding structure to perform a mortise-tenon connection, and a tight connection between the second supporting panel 72 and the second supporting frame 71 can also be achieved. In other embodiments, the second protruding portion may also be a protruding structure protruding outward from the outer end of the first supporting panel 62, the second groove portion is a groove structure formed by inward recessing of the outer end surface of the first supporting frame 61, the first supporting panel 62 and the first supporting frame 61 extend into the groove structure through the protruding structure to perform mortise-tenon connection, or the second protruding portion is directly formed by the outer end of the first supporting panel 62, so that the first supporting panel 62 and the first supporting frame 61 extend into the second groove portion through the outer end of the first supporting panel 62 to perform mortise-tenon connection, thereby achieving tight connection between the first supporting panel 62 and the first supporting frame 61. In addition, in this embodiment, the third protruding block 51 and the second supporting panel 72 are integrally formed, so that the structure is stable, and is more durable. Of course, in other embodiments, the third mortise-and-tenon connecting structure 5 may also be configured to include two third groove portions 52 oppositely disposed and a third connecting bar connected between the two third groove portions 52, one end of the third connecting bar is connected to one of the third groove portions 52 in a matching manner, and the other end of the third connecting bar is connected to the other third groove portion 52 in a matching manner, and also can achieve a tight connection between the second supporting panel 72 and the second supporting frame 71, or the second mortise-and-tenon connecting structure is configured to include two second groove portions oppositely disposed and a second connecting bar connected between the two second groove portions, one end of the second connecting bar is connected to one of the third groove portions in a matching manner, and the other end of the second connecting bar is connected to the other second groove portion 52 in a matching manner, and thereby achieving a tight connection between the first supporting panel 62 and the first supporting frame 61.

As shown in fig. 2, as an embodiment of the present invention, the whole second support panel 72 is made of the parquet board 100, that is, the whole second support panel 72 is cut from a large parquet board 100, of course, in other embodiments, only a part of the second support panel 72 may be configured to be made of the parquet board 100, and the second support panel 72 with rich wood grain patterns may be formed. In other embodiments, the entire first support panel 62 may be formed of the parquet sheet 100, that is, the entire first support panel 62 may be cut from a large parquet sheet 100, or a part of the first support panel 62 may be formed of the parquet sheet 100, so that the first support panel 62 having a rich wood grain pattern may be formed.

As shown in fig. 2, as an embodiment of the present invention, the first supporting frame 61 includes at least four supporting seat rods 611 horizontally arranged or substantially horizontally arranged, preferably four supporting seat rods 611 are provided, the first supporting frame 61 is formed by tenon-and-mortise connection between the supporting seat rods 611 in sequence, a first mounting area for mounting the first supporting panel 62 is formed in the first supporting frame 61, the shape of the first supporting panel 62 is matched with the first mounting area, and a second groove portion for mounting the first supporting panel 62 is respectively provided on the outer end surface of each supporting seat rod 611 close to the first mounting area. A plurality of supporting beams 612 are arranged between the supporting seat rods 611 at intervals, in this embodiment, two supporting beams 612 are arranged, one ends of the two supporting beams 612 are connected with the rear mortise and tenon of one supporting seat rod 611 on the front side respectively, the other ends of the two supporting beams 612 are connected with the front mortise and tenon of one supporting seat rod 611 on the rear side respectively, and the upper end surfaces of the supporting beams 612 are located below the first supporting panel 62, so that the stability and the bearing capacity of the structure of the first supporting structure 6 are improved. The second supporting frame 71 comprises at least two supporting back bars 711 and at least one back cross bar 712, which are vertically or substantially vertically arranged, preferably two supporting back bars 711 are provided, one back cross bar 712 is provided, the lower ends of the two supporting back bars 711 are respectively mortise-tenon connected with the upper parts of the supporting seat bars 611, the upper ends of the two supporting back bars 711 are respectively mortise-tenon connected with the lower parts of the back cross bar 712, and the upper ends of the two supporting back bars 711 are respectively connected with the back cross bar 712 near the two ends, so as to enlarge the supporting area of the back cross bar 712. The second supporting frame 711 further includes at least two backboard support bars 713 and at least two backboard cross bars 714, preferably two backboard support bars and two backboard cross bars 714, the lower ends of the two backboard support bars 713 are respectively mortise-tenon connected with the upper portions of the supporting seat bars 611, the upper ends of the two backboard support bars 714 are respectively mortise-tenon connected with the lower portions of the back cross bars 712, one end of each backboard cross bar 714 is respectively mortise-tenon connected with one backboard support bar 713, the other end of each backboard support bar 713 is respectively mortise-tenon connected with the other backboard support bar 713, the two backboard support bars 713 are arranged at intervals, the two backboard support bars 713 are respectively arranged at intervals with the two supporting back bars 711, the two backboard cross bars 714 are respectively arranged at intervals with the back cross bars 712 and the supporting seat bars 611, a second mounting area for mounting the second supporting panel 72 is formed between the two backboard support bars 713 and the two backboard cross bars 714, the shape of the second supporting panel 72 is matched with the shape of the second mounting area, the two back plate supporting rods 713 and the two back plate cross rods 714 are respectively provided with a third groove portion 52 near the outer end face of the second mounting region for mounting the second supporting panel 72. In this embodiment, the two back plate supporting rods 713 are arranged at an angle gradually expanding from top to bottom, and the two back plate cross rods 714 are arranged in parallel, so that the second supporting panel 72 in the installation area is in an isosceles trapezoid shape, however, in other embodiments, the two back plate supporting rods 713 may be arranged in parallel, so that the second supporting panel 72 in the installation area is in a rectangular or square shape, or the back plate supporting rods 713 and the back plate cross rods 714 are arranged at other angles, so that the second supporting panel 72 in the installation area is in other shapes, thereby enriching the shape of the chair. In addition, in other embodiments, the second supporting panel 72 can be directly disposed between the supporting seat bar 611 and the two supporting back bars 711 and/or the back cross bar 712, and can also be used for leaning on the human body and displaying rich wood grain patterns.

As shown in fig. 2, as the embodiment of the present invention, the utility model further includes a third supporting structure 8 and a fourth supporting structure 9, wherein, the third supporting structure 8 is connected in the lower part of the first supporting frame 6 through a fifth mortise-tenon joint structure, and is used for supporting the first supporting structure 6 to keep away from bearing surfaces such as ground, the third supporting structure 8 includes at least four supporting legs 81, preferably four supporting legs 81 are provided, the upper end of each supporting leg 81 is respectively connected with the lower part mortise-tenon joint of the supporting seat bar 611, the lower end is respectively used for leaning against with bearing surfaces such as ground, the four supporting legs 81 are respectively connected with the peripheral position of the connecting position and/or the connecting position between each supporting seat bar 611, and the stability and the bearing capacity of the structure are enhanced. The position between the two legs 81 of the left, right and rear sides near the lower end is mortise-tenon connected with a leg cross rod 82, so that the stability of the structure of the third supporting structure 8 is improved, and the position between the leg cross rods 82 of the left and right sides near the front end is mortise-tenon connected with another leg cross rod 82, so that a certain moving space is formed between the leg cross rod 82 and the two legs 81 of the front side, and the feet, legs and other parts of people can move freely. One side of the fourth supporting structure 9 is connected to the upper part of the supporting seat bar 611 in the first supporting frame 61 through a sixth mortise and tenon joint structure, the other side is connected to the front part of the supporting back bar 711 in the second supporting frame 71 through a seventh mortise and tenon joint structure, and can be used for taking a hand, specifically, the fourth supporting structure 9 comprises a handrail bar 91 and a handrail support 92, the rear end of the handrail bar 91 is in mortise and tenon joint with the front part of the supporting back bar 711 at the middle part or near the middle and lower part, the front end of the handrail bar 91 is a free end, the upper end of the handrail support 92 is in mortise and tenon joint with the lower part of the handrail bar 91, and the lower end is in mortise and tenon joint with the upper part of the supporting seat bar 611, in this embodiment, three handrail support 92 are arranged at intervals, so as to enhance the bearing capacity of the fourth supporting structure 9, and one handrail support 92 at the foremost end is connected with the position of the handrail bar 91 near the front end, so as to facilitate holding the free end of the handrail bar 91, the grab rail 91 is set to be in a curve shape, so that the grab rail is more suitable for the human body structure, and the comfort when the user takes the hand is improved. Of course, in other embodiments, the handrail support 92 can be provided with only one or two, or four, five or more, so as to achieve different weight-bearing effects, and the handrail 91 can also be provided with other shapes such as a straight rod, an arc rod, and the like, and can also be used for joining hands.

As shown in fig. 7 to 8, as another embodiment of the present invention, the first mortise-tenon joint structure 4 is configured to include two oppositely disposed first groove portions 42 and a first connecting bar 43 connected between the two first groove portions 42, one end of the first connecting bar 43 is in mortise-tenon joint with one of the first groove portions 42, and the other end is in mortise-tenon joint with the other one of the first groove portions 42, specifically, the first two first groove portions 42 of the first group are respectively disposed along the first outer end surface 11 and the third outer end surface 21 of each splicing unit 10, and one end of the first connecting bar 43 of the first group is in mortise-tenon joint with one of the first groove portions 42, and the other end is in mortise-tenon joint with the other one of the first groove portions 42, so that the first outer end surface 11 and the third outer end surface 21 are tightly spliced together along the length direction; the two first groove portions 42 of the second group are respectively arranged along the second outer end face 12 and the fifth outer end face 31 of each splicing unit 10, and one end of the first connecting bar 43 of the second group is in mortise-tenon joint fit with one of the first groove portions 42, and the other end of the first connecting bar is in mortise-tenon joint fit with the other one of the first groove portions 42, so that the second outer end face 12 and the fifth outer end face 31 are tightly spliced together along the length direction; the two first groove portions 42 of the third group are respectively arranged along the fourth outer end surface 22 and the sixth outer end surface 32 of each splicing unit 10, one end of the first connecting bar 43 of the third group is in mortise-tenon joint fit with one of the first groove portions 42, and the other end of the first connecting bar is in mortise-tenon joint fit with the other one of the first groove portions 42, so that the fourth outer end surface 22 and the sixth outer end surface 32 are tightly spliced together along the length direction. In this embodiment, the first protruding block 41 does not need to be disposed on the first single body 1, the second single body 2, and the third single body 3, so that the structure is simpler and the processing is easier.

In other embodiments, the edges of the first upper surface 13 of the single body 1, the second upper surface 23 of the single body 2, and the third upper surface 33 of the single body 3, and/or the edges of the first lower surface of the single body 1, the second lower surface of the single body 2, and the third lower surface of the single body 3 may be arc surfaces, so that the first edge X, the second edge Y, and the third edge Z of the splicing unit 10 form a ravine shape, and the surface of the parquet plank 100 spliced by the plurality of splicing units 10 presents a ravine-shaped pattern, so that the pattern of the parquet plank 100 is more abundant and varied.

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

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims (10)

1. A chair with parquets, comprising:

the first support structure is used for taking a human body and comprises a first support frame and a first support panel arranged on the first support frame through a second mortise-tenon joint structure;

the second support structure is connected with the first support structure and used for leaning against a human body, and comprises a second support frame and a second support panel arranged on the second support frame through a third tenon-and-mortise connection structure;

the first support panel and/or the second support panel comprise a parquet plate spliced by a plurality of splicing units, each splicing unit is formed by splicing a single body I, a single body II and a single body III through a first mortise-tenon joint structure, the single body I, the single body II and the single body III are arranged into a polyhedral member, the single body I is provided with a first outer end face and a second outer end face, the single body II is provided with a third outer end face and a fourth outer end face, the single body III is provided with a fifth outer end face and a sixth outer end face, the first outer end face and the third outer end face are spliced with each other along the length direction, the second outer end face and the fifth outer end face are spliced with each other along the length direction, the fourth outer end face and the sixth outer end face are spliced with each other along the length direction, the spliced single body I is provided with a first upper surface, the single body II is provided with a second upper surface, and the single body III is provided with a third upper surface, the first upper surface, the second upper surface and the third upper surface are positioned on the same horizontal plane.

2. The chair according to claim 1, wherein: the line direction of monomer one sets up to follow first line direction, first line is followed first upper surface and is appeared, the line direction of monomer two sets up to follow the direction of second line, the second line is followed the second upper surface and is appeared, the line direction of monomer three sets up to follow the direction of third line, third line is followed the third upper surface and is appeared, second line and third line syntropy, first line and second line or third line syntropy are not equidirectional.

3. The chair according to claim 2, wherein: the first mortise-tenon joint structure comprises a first lug part and a first groove part which is used for being matched and connected with the first lug part, a first group of the first lug part and the first groove part are respectively arranged along a first outer end surface and a third outer end surface, a second group of the first lug part and the first groove part are respectively arranged along a second outer end surface and a fifth outer end surface, and a third group of the first lug part and the first groove part are respectively arranged along a fourth outer end surface and a sixth outer end surface;

or the first mortise-tenon joint structure comprises two first groove parts which are oppositely arranged and a first connecting strip which is connected between the two first groove parts, one end of the first connecting strip is connected with one first groove part in a matched mode, the other end of the first connecting strip is connected with the other first groove part in a matched mode, the first group of two first groove parts are arranged along the first outer end face and the third outer end face respectively, the second group of two first groove parts are arranged along the second outer end face and the fifth outer end face respectively, and the third group of two first groove parts are arranged along the fourth outer end face and the sixth outer end face respectively.

4. A chair according to claim 3, wherein: the first groove portion is formed by integrally and inwards recessing an outer end face of the first monomer I, the second monomer II or the third monomer III by a certain depth, the first groove portion is provided with a first upper surface, a first protruding block portion positioned on one side of the first groove portion on the first monomer I, the second monomer II or the third monomer is provided with a second upper surface, and the first upper surface is connected with the second upper surface and positioned on the same horizontal plane.

5. The chair according to claim 4, wherein: first upper surface and second upper surface junction are formed with first border, and second upper surface and third upper surface junction are formed with the second border, and first upper surface and third upper surface junction are formed with the third border, first line is parallel along first border or third border, second line and third line are parallel along the second border, first border, second border and third border are first interior angle, second interior angle and third interior angle along the angle of two liang of formations, the angle sum of first interior angle, second interior angle and third interior angle is 360.

6. The chair according to claim 5, wherein: the first monomer, the second monomer and the third monomer are or are all arranged into different components.

7. The chair according to claim 5, wherein: the single body I, the single body II and the single body III are arranged into the same component;

the first outer end face and the third outer end face are equal in length along the length direction, the second outer end face and the fifth outer end face are equal in length along the length direction, and the fourth outer end face and the sixth outer end face are equal in length along the length direction;

the first interior angle, the second interior angle and the third interior angle are respectively set to be 120 degrees, and the vertexes of the first interior angle, the second interior angle and the third interior angle are converged on a point M.

8. The chair according to claim 7, wherein: the first single body, the second single body and the third single body are arranged to be diamond-shaped members, and the first edge, the second edge and the third edge are arranged to be equal in length;

the first single body, the second single body and the third single body are respectively provided with 120-degree inner angles and 60-degree inner angles, two outer end faces, adjacent to the same 60-degree inner angle, of the first single body, the second single body and the third single body are respectively provided with a first protruding block portion, and the other two outer end faces are respectively provided with a first groove portion.

9. A chair according to any one of claims 1 to 8, wherein: the second mortise and tenon connecting structure comprises a second lug part and a second groove part which is used for being matched and connected with the second lug part, and the second lug part and the second groove part are respectively arranged along the outer end face of the first supporting panel and the outer end face of the first supporting frame;

the third mortise-tenon joint structure comprises a third bump part and a third groove part which is used for being matched and connected with the third bump part, and the third bump part and the third groove part are respectively arranged along the outer end face of the second supporting panel and the outer end face of the second supporting frame.

10. The chair according to claim 9, wherein: the second supporting frame is connected to the upper part of the first supporting frame through a fourth mortise and tenon connection structure;

the second lug part and the third lug part are respectively outer end parts of the first support panel and/or the second support panel and/or are respectively protruding structures protruding outwards from the outer end surface of the first support panel and/or the second support panel, the second groove part is a groove structure formed by inwards recessing the outer end surface of the first support frame, and the third groove part is a groove structure formed by inwards recessing the outer end surface of the second support frame;

the first support frame comprises at least four support seat rods, the support seat rods are sequentially connected in a mortise-tenon manner end to form the first support frame, a first installation area for installing a first support panel is formed in the first support frame, the shape of the first support panel is matched with that of the first installation area, and a second groove part for installing the first support panel is respectively arranged on the outer end surface, close to the first installation area, of each support seat rod;

the second supporting frame comprises at least two supporting back rods, at least one back cross rod, at least two back plate supporting rods and at least two back plate cross rods, the lower ends of the supporting back rods are respectively connected with the upper parts of the supporting seat rods in a mortise-and-tenon manner, the upper ends of the supporting back rods are respectively connected with the positions, close to the two end parts, of the back cross rods, the lower ends of the back plate supporting rods are respectively connected with the upper parts of the supporting seat rods in a mortise-and-tenon manner, the upper ends of the back plate supporting rods are respectively connected with the lower parts of the back cross rods in a mortise-and-tenon manner, one end of each back plate cross rod is respectively connected with one back plate supporting rod in a mortise-and-tenon manner, the other end of each back plate cross rod is respectively connected with the other back plate supporting rod in a mortise-and-tenon manner, the back plate supporting rods are arranged at intervals, the back plate supporting rods are respectively arranged at intervals with the supporting back cross rods, and the back plate cross rods are respectively arranged at intervals with the supporting seat rods, a second mounting area for mounting a second supporting panel is formed between the back plate supporting rod and the two back plate cross rods, the shape of the second supporting panel is matched with that of the second mounting area, and third groove parts for mounting the second supporting panel are respectively arranged on the back plate supporting rod and the back plate cross rods and close to the outer end faces of the second mounting area;

still include third bearing structure and fourth bearing structure, the third bearing structure is connected in first braced frame's lower part through fifth mortise-tenon joint structure for support first braced structure and keep away from the loading end, one side of fourth bearing structure is connected on first braced frame's upper portion through sixth mortise-tenon joint structure, and the opposite side is connected in second braced frame's front portion through seventh mortise-tenon joint structure, can be used to the hasty.

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