CN213097034U - Chair with detachable top - Google Patents

Abstract

The utility model discloses a chair, including seat portion and back portion, seat portion is connected with back portion, and the both sides of back portion all are provided with back support, are provided with first support rod spare between the top of two back support, and the tip of first support rod spare rotationally connects in back support's top, and one side indent of first support rod spare forms first dependence portion, and the opposite side is protruding to form first guide part. Through the arrangement of the structure, when in use, if the back of the user contacts the first depending part, the back of the user is attached to the depending part; if the first guide part of back contact, first bracing piece atress rotates to first dependence portion and laminates in user's back completely, has not only increased the area of contact of user's back and first bracing piece, also when providing effective support for the user, experiences for the good use of user to, first bracing piece has connected the upper portion of controlling the back support, makes this chair more firm, simple structure, and reasonable in design, comfortable durable.

Description

Chair with detachable top

Technical Field

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

Background

The chair is widely used in the life of people as a furniture commonly used in modern life, and along with the development of society, the chair also has various types, such as a folding chair, a deck chair and a rocking chair, and the folding chair is a portable and foldable chair, is convenient to move and saves space, and is widely applied to various training institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, families and other places. Moreover, due to the characteristics of convenient carrying and use, people are more and more favored to use the folding chair. The folding chair shows different characteristics according to different materials, and the chair made of steel pipes and plastic materials is hard, so that the comfort of a user is poor when the folding chair is used, and the use experience of the user is influenced; the chair made of the steel pipe and the oxford fabric cannot effectively support the back, and the health is affected after long-term use; in order to solve the problem, the utility model discloses a chair which is comfortable to use and can effectively support the user.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a chair, which has simple structure and convenient use.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a chair, including seat portion and back portion, seat portion with the back portion is connected, the both sides of back portion all are provided with back support, two be provided with first support rod spare between the top of back support, just the tip of first support rod spare rotationally connect in the top of back support, one side indent of first support rod spare forms first dependence portion, correspondingly, the opposite side arch of first support rod spare forms first guide part.

Further, seat supports are arranged on two sides of the seat portion, a second supporting rod piece is arranged between the tops of the seat supports, the end portion of the second supporting rod piece is rotatably connected to the tops of the seat supports, a second depending portion is formed by inwards concave one side of the second supporting rod piece, and correspondingly, a second guide portion is formed by protruding the other side of the second supporting rod piece.

Furthermore, the two backrest supports further comprise two first connecting pieces, a first insertion groove is formed in the bottom of each first connecting piece, the top of each backrest support is inserted into the first insertion groove, and the upper portion of each first connecting piece is rotatably connected to the first support rod piece.

Furthermore, the two seat part supports further comprise two second connecting pieces, the bottoms of the second connecting pieces are provided with second insertion grooves, the front end parts of the seat part supports are inserted in the second insertion grooves, and the upper parts of the second connecting pieces are rotatably connected to the second supporting rod pieces.

Furthermore, a first limiting through hole is formed in the side wall of the first insertion groove, a first limiting groove is formed in the top of the backrest support, a first elastic part and a first limiting block are arranged in the first limiting groove, one end of the first elastic part abuts against the bottom of the first limiting groove, the other end of the first elastic part abuts against the first limiting block, the first limiting block can slide in the first limiting groove, and when the top of the backrest support is inserted into the first insertion groove, the first limiting block is inserted into the first limiting through hole.

Furthermore, a second limiting through hole is formed in the side wall of the second insertion groove, a second limiting groove is formed in the front end portion of the seat support, a second elastic piece and a second limiting block are arranged in the second limiting groove, one end of the second elastic piece abuts against the bottom of the second limiting groove, the other end of the second elastic piece abuts against the second limiting block, the second limiting block can slide in the second limiting groove, and when the front end portion of the seat support is inserted into the second insertion groove, the second limiting block is inserted into the second limiting through hole.

Further, the chair also comprises a third connecting piece, the lower part of the third connecting piece is rotatably connected with the rear part of the seat support, and the upper part of the third connecting piece is rotatably connected with the bottom part of the backrest support.

Further, the chair further comprises a fourth connecting piece, a front leg support, a rear leg support and an armrest support, wherein the fourth connecting piece is fixed on the armrest support, the top of the front leg support is rotationally fixed at the front part of the fourth connecting piece, the top of the rear leg support is rotationally fixed at the middle part of the fourth connecting piece, the middle part of the backrest support is rotationally fixed at the rear part of the fourth connecting piece, and the middle part of the seat support is rotationally connected with the middle part of the front leg support.

Furthermore, the chair further comprises a fifth connecting piece, wherein a limiting column is arranged on the upper portion of the fifth connecting piece, the limiting column is connected to the upper portion of the third connecting piece, the lower portion of the fifth connecting piece is rotatably arranged in the middle of the rear leg support, and when the top of the backrest support is far away from the seat support to the limit position, the limiting column abuts against the rear leg support.

Furthermore, a backrest support piece is arranged between the two backrest supports, and a seat support piece is arranged between the two seat supports.

Further, the first support rod piece and the second support rod piece are both in a straight pull bow shape.

Furthermore, the bottom of the front leg support and the bottom of the rear leg support are both provided with a buffer.

Furthermore, the front leg support is provided with a front leg support, one end of the front leg support is connected to the lower part of the left front leg support, and the other end of the front leg support is connected to the lower part of the right front leg support.

Furthermore, one end of the rear leg support is connected to the lower part of the left rear leg support, and the other end of the rear leg support is connected to the lower part of the right rear leg support.

Furthermore, the front leg support is provided with a front leg fixing piece, one end of the front leg fixing piece is connected to the lower part of the front leg support, and the other end of the front leg fixing piece is connected to the end part of the front leg supporting piece.

Furthermore, the rear leg support is provided with a rear leg fixing member, one end of the rear leg fixing member is connected to the lower portion of the rear leg support, and the other end of the rear leg fixing member is connected to the end portion of the rear leg supporting member.

The utility model has the advantages that: through the arrangement of the structure, when the backrest is used, a user depends on the backrest, if the back directly contacts the first depending part, the inwards concave first depending part is completely attached to the back, so that the backrest provides effective support for the user, and simultaneously provides good use experience for the user; if the first guide part of back contact, the back presses to bellied first guide part, first bracing piece atress rotates, it laminates in user back to first dependence portion completely to rotate, not only increased the area of contact of user back and first bracing piece, the pressure that makes user back receive reduces, and first dependence portion laminates in user back, when providing effective support for the user, for user's good use experience, and, the upper portion of back support about first bracing piece has been connected, make this chair more firm, moreover, the steam generator is simple in structure, high durability and convenient use, and reasonable design is comfortable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the structure of the open state of the present invention;

fig. 2 is a schematic structural view of the present invention when folded;

fig. 3 is a schematic structural view of the present invention in a folded state;

FIG. 4 is a schematic view of a part of the structure of the present invention;

FIG. 5 is an enlarged view of FIG. 4 at circle A;

FIG. 6 is another schematic structural view of the present invention;

FIG. 7 is an enlarged view at circle B of FIG. 6;

fig. 8 is a schematic diagram of the explosion structure of the present invention;

FIG. 9 is a cross-sectional view of an enlarged view at circle C of FIG. 8;

fig. 10 is a cross-sectional view of an enlarged view at circle D of fig. 8.

Detailed Description

Referring to fig. 1 to 10, a chair includes a seat portion 2 and a backrest portion 1, the seat portion 2 is connected with the backrest portion 1, and is characterized in that backrest supports 12 are respectively provided at both sides of the backrest portion 1, a first support rod member 3 is provided between tops of the two backrest supports 12, an end of the first support rod member 3 is rotatably connected to the tops of the backrest supports 12, one side of the first support rod member 3 is recessed to form a first depending portion 31, and correspondingly, the other side of the first support rod member 3 is raised to form a first guide portion 32.

Through the arrangement of the structure, when the backrest is used, a user depends on the backrest, if the back directly contacts the first depending part, the inwards concave first depending part is completely attached to the back, so that the backrest provides effective support for the user, and simultaneously provides good use experience for the user; if the first guide part of back contact, the back presses to bellied first guide part, first bracing piece atress rotates, it laminates in user back to first dependence portion completely to rotate, not only increased the area of contact of user back and first bracing piece, the pressure that makes user back receive reduces, and first dependence portion laminates in user back, when providing effective support for the user, for user's good use experience, and, the upper portion of back support about first bracing piece has been connected, make this chair more firm, moreover, the steam generator is simple in structure, high durability and convenient use, and reasonable design is comfortable.

In this embodiment, seat supports 13 are disposed on both sides of the seat portion 2, a second support rod 4 is disposed between the tops of the two seat supports 13, the end of the second support rod 4 is rotatably connected to the top of the seat support 13, one side of the second support rod 4 is concave to form a second depending portion 41, and correspondingly, the other side of the second support rod 4 is convex to form a second guiding portion 42. Through the arrangement of the structure, when the chair is used, the legs of a user contact the seat part, and if the legs directly contact the second depending part, the concave second depending part completely fits the legs, so that the user can be effectively supported and the user can have good use experience; if shank contact second guide part, the shank presses to bellied second guide part, second support member atress rotates, it depends on the portion to rotate to the second and laminates in user's shank completely, not only increased user's shank and second support member's area of contact, the pressure that makes user's shank receive reduces, and the second relies on the portion to laminate in user's shank, when providing support effectively for the user, for user's good use experience, and, the upper portion of seat support about the second support member has been connected, make this chair more firm, moreover, the steam generator is simple in structure, high durability and convenient use, and the steam generator is reasonable in design.

In this embodiment, the two backrest brackets 12 further include two first connecting members 5, the bottom of the first connecting member 5 is provided with a first insertion slot 51, the top of the backrest bracket 12 is inserted into the first insertion slot 51, and the upper portion of the first connecting member 5 is rotatably connected to the first support rod member 3. Through the setting of above-mentioned structure, first connecting piece 5 can make first bracing piece detachably connect back support top, and convenience of customers changes the first bracing piece of new to, the user can change suitable first bracing piece according to the demand of oneself, for example, change the user of the first bracing piece of different crooked radians in order to adapt to different sizes. And first support rod spare detachably connects back support top and can also change first support rod spare when the damage appears, and the life-span when changing the looks promotion product, simple structure, convenient to use, reasonable in design.

In this embodiment, the two seat portion brackets 13 further include two second connecting members 6, the bottom of the second connecting member 6 is provided with a second insertion groove 61, the front end portion of the seat portion bracket 13 is inserted into the second insertion groove 61, and the upper portion of the second connecting member 6 is rotatably connected to the second support rod member 4. Through the setting of above-mentioned structure, second connecting piece 5 can make second support member detachably connect seat support front end, and convenience of customers changes new second support member to, the user can change suitable second support member according to the demand of oneself, for example, change the user of the second support member of different crooked radians in order to adapt to different sizes. And second support member detachably connects seat support front end portion and can also change the second support member when the damage appears, and the life-span when changing the looks promotion product, simple structure, convenient to use, reasonable in design.

In this embodiment, the first limiting through hole 52 is disposed on the sidewall of the first insertion groove 51, the first limiting groove 121 is disposed at the top of the backrest support 12, the first elastic member 122 and the first limiting block 123 are disposed in the first limiting groove 121, one end of the first elastic member 122 abuts against the bottom of the first limiting groove 121, the other end of the first elastic member 122 abuts against the first limiting block 123, the first limiting block 123 can slide in the first limiting groove 121, and when the top of the backrest support 12 is inserted in the first insertion groove 51, the first limiting block 123 is inserted into the first limiting through hole 52. Through the arrangement of the structure, when the backrest support is used, the top of the backrest support is inserted into the first insertion groove, the side wall of the first insertion groove presses the first limiting block, the first elastic piece is stressed and deformed, when the backrest is completely inserted into the first insertion groove, the first limiting block slides to the first limiting through hole, the first elastic piece resets, and the first limiting block is inserted into the first limiting through hole, so that the first connecting piece is more firmly connected to the backrest support. When the first connecting piece is pulled, the first support rod piece can be conveniently replaced. Simple structure, easy dismounting, it is convenient to use.

In this embodiment, the side wall of the second insertion groove 61 is provided with a second limiting through hole 62, the front end portion of the seat support 13 is provided with a second limiting groove 131, the second limiting groove 131 is provided with a second elastic member 132 and a second limiting block 133, one end of the second elastic member 132 abuts against the bottom of the second limiting groove 131, the other end of the second elastic member 132 abuts against the second limiting block 133, the second limiting block 133 can slide in the second limiting groove 131, and when the front end portion of the seat support 13 is inserted in the second insertion groove 61, the second limiting block 133 is inserted into the second limiting through hole 62. Through the arrangement of the structure, when the seat support is used, the front end part of the seat support is inserted into the second insertion groove, the side wall of the second insertion groove presses the second limiting block, the second elastic part is stressed and deformed, when the front end part of the seat support is completely inserted into the second insertion groove, the second limiting block slides to the second limiting through hole, the second elastic part resets, and the second limiting block is inserted into the second limiting through hole, so that the second connecting part is more firmly connected to the seat support. When the second support rod piece is detached, the second slide block is pressed, the second connecting piece is pulled, and the second support rod piece can be conveniently replaced. Simple structure, easy dismounting, it is convenient to use.

In this embodiment, the chair further comprises a third link 7, wherein the lower portion of the third link 7 is rotatably connected to the rear portion of the seat frame 13, and the upper portion of the third link 7 is rotatably connected to the bottom portion of the backrest frame 12. Through the setting of above-mentioned structure, seat support and back support can center on the mutual rotation of third connecting piece 7, make this seat can fold, conveniently accomodate, transport and use, simple structure, convenient to use, reasonable in design.

In this embodiment, the chair further comprises a fourth connecting member 8, a front leg support 14, a rear leg support 15 and an armrest support 16, wherein the fourth connecting member 8 is fixed on the armrest support 16, the top of the front leg support 14 is rotatably fixed at the front part of the fourth connecting member 8, the top of the rear leg support 15 is rotatably fixed at the middle part of the fourth connecting member 8, the middle part of the backrest support 12 is rotatably fixed at the rear part of the fourth connecting member 8, and the middle part of the seat support 13 is rotatably connected at the middle part of the front leg support 14. Through the setting of above-mentioned structure, during the use, pull first support member and second support member, draw the top of back portion and the top of seat portion, can be folding whole chair, simple to use, accomodate the convenience, reasonable in design.

In this embodiment, the chair further includes a fifth connecting member 9, a limiting post 91 is disposed on the upper portion of the fifth connecting member 9, the limiting post 91 is connected to the upper portion of the third connecting member 7, the lower portion of the fifth connecting member 9 is rotatably disposed in the middle of the rear leg support 15, and when the top of the backrest support 12 is far away from the seat support 13 to the limit position, the limiting post 91 abuts against the rear leg support 15. Through the arrangement of the structure, the limiting column is abutted against the rear leg support, so that the chair is in an open state, a user can be better supported, and the structure is simple and reasonable in design.

In this embodiment, the first support rod 3 and the second support rod 4 are both straight-pull bow-shaped. First support piece and second support piece are the axial symmetry setting, and the both ends of first support piece and the both ends of second support piece all are equipped with the horizontal connection portion along the axis direction, and the one end of horizontal connection portion is connected in first connecting piece and second connecting piece, and the other end of horizontal connection portion is connected in outside outstanding arc connecting portion, connects through the main part connecting portion of a linear type between two arc connecting portions. Through the setting of above-mentioned structure, the bow-shaped first support member of czochralski pulling and second support member, the user back can be laminated more effectively to the portion of relying on of its indent, and outstanding guide part also rotates more easily when the atress to make the portion of relying on can laminate the user back, simple structure, reasonable in design, convenient to use has greatly promoted user's use and has experienced.

In this embodiment, a backrest support 121 is disposed between the two backrest brackets 12, and a seat support 131 is disposed between the two seat brackets 13. The backrest support part is connected with the two backrest supports, the seat support part is connected with the two seat supports, effective support can be provided for a user, the structure is simple, the design is reasonable, and the use is convenient.

In this embodiment, the bottom of the front leg link 14 and the bottom of the rear leg link 15 are provided with the cushion members 10. The buffer piece is arranged, so that the front legs and the rear legs of the chair can be effectively protected, the chair legs can be prevented from scratching the floor when the chair is used, the structure is simple, and the design is reasonable.

In this embodiment, the front leg supporter 14 is provided with a front leg supporter 141, one end of the front leg supporter 141 is connected to the lower portion of the left front leg supporter 14, and the other end of the front leg supporter 141 is connected to the lower portion of the right front leg supporter 14. The front leg of the chair is more stable due to the arrangement of the front leg supporting pieces, the structure is simple, the distance between the two front legs is fixed, the first supporting pieces are prevented from being stressed too much due to the change of the distance between the two front legs, the chair cannot rotate flexibly, and the chair is simple in structure, convenient to use and reasonable in design.

In this embodiment, the rear leg support 151 of the rear leg bracket 15, one end of the rear leg support 151 is connected to the lower portion of the left rear leg bracket 15, and the other end of the rear leg support 151 is connected to the lower portion of the right rear leg bracket 15. The arrangement of the rear leg supporting piece enables the product to be more stable, and the distance between the two rear leg supports is limited.

In this embodiment, the front leg supporter 14 is provided with a front leg fixing member 142, one end of the front leg fixing member 142 is connected to the lower portion of the front leg supporter 14, and the other end of the front leg fixing member 142 is connected to the front leg supporter end portion 141. The front leg fixing piece is further used for fixing the front leg support and the front leg supporting piece, the front leg support and the front leg supporting piece are fixed to form a triangle, and due to the characteristics of the triangle, the structure is more stable, the structure is simple, the design is reasonable, and the structure is firm and durable.

In this embodiment, the rear leg supporter 15 is provided with a rear leg fixing member 152, one end of the rear leg fixing member 152 is connected to the lower portion of the rear leg supporter 15, and the other end of the rear leg fixing member 152 is connected to the rear leg supporter end 151. The back leg fixing piece is further used for fixing the back leg support and the back leg supporting piece, the back leg support and the back leg supporting piece are fixed into a triangle, and due to the characteristics of the triangle, the structure is more stable, the structure is simple, the design is reasonable, and the structure is firm and durable.

The foregoing is a description of one or more embodiments provided in connection with the detailed description and is not intended to limit the invention to the precise form disclosed. All with the utility model discloses a method, structure etc. are similar, the same, or to the utility model discloses make a plurality of technological deductions or replacement under the design prerequisite, all should regard as the utility model discloses a protection scope.

Claims (10)

1. The utility model provides a chair, includes seat portion (2) and back portion (1), seat portion (2) with back portion (1) is connected, its characterized in that, the both sides of back portion (1) all are provided with back support (12), two be provided with first support member spare (3) between the top of back support (12), just the tip of first support member spare (3) rotationally connect in the top of back support (12), one side indent of first support member spare (3) forms first portion of relying on (31), correspondingly, the protruding first guide part (32) that forms of opposite side of first support member spare (3).

2. The chair according to claim 1, wherein the seat portion (2) is provided with seat brackets (13) at both sides thereof, a second support rod member (4) is provided between the tops of the seat brackets (13), and the end portion of the second support rod member (4) is rotatably connected to the front end portion of the seat brackets (13), and one side of the second support rod member (4) is recessed to form a second depending portion (41), and correspondingly, the other side of the second support rod member (4) is protruded to form a second guide portion (42).

3. The chair according to claim 1, wherein the two backrest supports (12) further comprise two first connecting members (5), a first insertion groove (51) is formed at the bottom of each first connecting member (5), the top of each backrest support (12) is inserted into the first insertion groove (51), and the upper portion of each first connecting member (5) is rotatably connected to the first support rod member (3).

4. The chair according to claim 2, wherein the two seat portion brackets (13) further comprise two second connecting members (6), the bottom of the second connecting members (6) is provided with a second insertion groove (61), the front end portion of the seat portion bracket (13) is inserted into the second insertion groove (61), and the upper portion of the second connecting member (6) is rotatably connected to the second support rod member (4).

5. The chair according to claim 3, wherein a first limiting through hole (52) is formed in a side wall of the first insertion groove (51), a first limiting groove (121) is formed in the top of the backrest support (12), a first elastic member (122) and a first limiting block (123) are arranged in the first limiting groove (121), one end of the first elastic member (122) abuts against the bottom of the first limiting groove (121), the other end of the first elastic member (122) abuts against the first limiting block (123), the first limiting block (123) can slide in the first limiting groove (121), and when the top of the backrest support (12) is inserted into the first insertion groove (51), the first limiting block (123) is inserted into the first limiting through hole (52).

6. The chair according to claim 4, wherein a second limiting through hole (62) is formed in a side wall of the second insertion groove (61), a second limiting groove (131) is formed in a front end portion of the seat support (13), a second elastic member (132) and a second limiting block (133) are arranged in the second limiting groove (131), one end of the second elastic member (132) abuts against the bottom of the second limiting groove (131), the other end of the second elastic member (132) abuts against the second limiting block (133), the second limiting block (133) can slide in the second limiting groove (131), and when the front end portion of the seat support (13) is inserted into the second insertion groove (61), the second limiting block (133) is inserted into the second limiting through hole (62).

7. The chair according to claim 2, further comprising a third link (7), wherein a lower portion of the third link (7) is rotatably connected to a rear portion of the seat frame (13), and an upper portion of the third link (7) is rotatably connected to a bottom portion of the backrest frame (12).

8. The chair according to claim 7, further comprising a fourth connecting member (8), a front leg support (14), a rear leg support (15) and an armrest support (16), wherein the fourth connecting member (8) is fixed to the armrest support (16), the top of the front leg support (14) is rotatably fixed to the front portion of the fourth connecting member (8), the top of the rear leg support (15) is rotatably fixed to the middle of the fourth connecting member (8), the middle of the backrest support (12) is rotatably fixed to the rear portion of the fourth connecting member (8), and the middle of the seat support (13) is rotatably connected to the middle of the front leg support (14).

9. The chair according to claim 8, further comprising a fifth connecting member (9), wherein a limiting column (91) is disposed on an upper portion of the fifth connecting member (9), the limiting column (91) is connected to an upper portion of the third connecting member (7), a lower portion of the fifth connecting member (9) is rotatably disposed in a middle portion of the rear leg support (15), and when the top of the backrest support (12) is far away from the seat support (13) to a limit position, the limiting column (91) abuts against the rear leg support (15).

10. The chair according to claim 2, characterized in that said first support bar (3) and said second support bar (4) are both straight-pulled bow-shaped.

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