CN112220282B

CN112220282B - Folding dining chair for infants and framework thereof

Info

Publication number: CN112220282B
Application number: CN202011146559.7A
Authority: CN
Inventors: 钭子奇
Original assignee: Zhejiang Qunying Vehicles Co Ltd
Current assignee: Zhejiang Qunying Vehicles Co Ltd
Priority date: 2020-08-31
Filing date: 2020-10-23
Publication date: 2022-11-18
Anticipated expiration: 2040-10-23
Also published as: CN112220282A

Abstract

The invention discloses a folding dining chair for infants and a framework thereof, comprising a dining table plate for placing tableware, a chair seat frame, an armrest frame, a backrest frame and a support frame for contacting with the ground, wherein the dining table plate is fixedly arranged on the armrest frame; the left and right first connecting assemblies, the left and right second connecting assemblies and the left and right third connecting assemblies are also arranged; the bottom end of the backrest frame is hinged with the second connecting assembly, and the upper half part of the backrest frame is matched with the left and right rear handrail pieces to form a plurality of stopping positions; the dining table plate is arranged on the armrest frame through a third connecting assembly and is provided with a plurality of mounting positions; when not needing to use this dining chair through this technical scheme, can draw in it in, reduce occupation space, especially, this dining chair is particularly suitable for and uses when going out, conveniently carries, and this dining chair spare part is few in addition, simple structure, material saving cost.

Description

Folding dining chair for infants and framework thereof

Technical Field

The invention relates to the technical field of infant beds, in particular to a folding dining chair for infants and a framework thereof.

Background

The baby high dining chair is used as a necessary tool for the rest, the game and the dining of the baby in a family room, and has the functions of playing, dining, resting and the like for the baby. The folding function of the chair is a major component, and the folding structure allows the chair to occupy a smaller space when not in use. Further improvements have been made to provide convenience to the mother while serving the baby by providing one-touch functionality when the baby highchair is folded.

Disclosure of Invention

In order to solve the above problems, the present invention provides a folding dining chair for infants and its frame, which has a simple structure, is stable to support, and has a folding function without occupying a space.

In order to achieve the purpose, the invention adopts the following technical scheme:

a framework of a folding dining chair for infants comprises a dining table plate for placing tableware, a chair seat frame, an armrest frame, a backrest frame and a support frame for contacting with the ground, wherein the dining table plate is fixedly arranged on the armrest frame; it is characterized in that the preparation method is characterized in that,

the left and right first connecting assemblies, the left and right second connecting assemblies and the left and right third connecting assemblies are also arranged;

the armrest frame comprises a left front armrest piece, a right front armrest piece and a left rear armrest piece, the front armrest pieces are rotatably arranged on the front side of the first connecting component, and the rear armrest pieces are rotatably arranged on the rear side of the first connecting component;

the chair seat frame comprises at least one front chair seat piece and at least one rear chair seat piece, the front chair seat piece is rotatably arranged on the front side of the second connecting component, and the rear chair seat piece is rotatably arranged on the rear side of the second connecting component;

the support frame comprises a front support piece and a rear support piece, the front support piece and the rear support piece are rotatably arranged on the lower side of the first connecting component, and the front support piece is positioned on the front side of the rear support piece;

the front seat part is hinged with the front supporting piece, and the rear seat part is hinged with the rear supporting piece;

the bottom end of the backrest frame is hinged with the second connecting assembly, and the upper half part of the backrest frame is matched with the left and right rear handrail pieces to form a plurality of stopping positions;

the dining table board is installed on handrail frame through third coupling assembling and has a plurality of mounted position.

Preferably, the first connecting assembly comprises a first connecting piece, two fourth connecting pieces and two first connecting sleeves, the front handrail piece is rotatably arranged at the front side of the first connecting piece, and the rear handrail piece is rotatably arranged at the rear side of the first connecting piece; the front supporting piece and the rear supporting piece are rotatably arranged on the lower side of the first connecting piece, the two first connecting sleeves are slidably sleeved on the front supporting piece and the rear supporting piece respectively, the top ends of the two fourth connecting pieces are hinged with the front handrail piece and the rear handrail piece respectively, the bottom ends of the two fourth connecting pieces are hinged with each other, and the middle parts of the two fourth connecting pieces are hinged with the two first connecting sleeves respectively.

Preferably, the first connecting piece is a box-shaped structure with an opening at the lower end face and symmetry, and comprises a first box body and a second box body, the first box body is longer than the second box body in the front-back direction, the top end of the front supporting piece and the top end of the rear supporting piece are rotatably installed in the first box body, the rear end of the front handrail piece and the front end of the rear handrail piece are respectively located on two sides of the second box body and rotatably installed on the outer surface of the first box body.

Preferably, the first connecting sleeve and the third U-shaped pipe are in clearance fit.

Preferably, the second connecting assembly comprises connecting seats, and a second connecting piece, a third connecting piece and a rotating shaft which are arranged on the connecting seats, the two connecting seats are both positioned at the inner sides of the second connecting piece and the third connecting piece, the second connecting piece and the third connecting piece are hinged through the rotating shaft, the chair seat frame comprises a front chair seat piece and two rear chair seat pieces, the front chair seat piece and the rear chair seat pieces are both U-shaped tubes, the front chair seat piece is fixedly connected with the left second connecting piece and the right second connecting piece respectively, the two rear chair seat pieces are fixedly connected with the left third connecting piece and the right third connecting piece respectively, and the bottom of the backrest frame is rotatably arranged at the outer sides of the two second connecting pieces;

and second mounting holes are formed in the second connecting pieces, and the bottom of the backrest frame is rotatably mounted on the outer sides of the two second connecting pieces through the second mounting holes.

Preferably, the backrest frame is further provided with a left positioning sleeve and a right positioning sleeve, the backrest frame is a U-shaped tube, the two positioning sleeves are respectively sleeved on the left side and the right side of the backrest frame, positioning parts are arranged on the positioning sleeves, a plurality of positioning grooves are distributed on the rear armrest piece at intervals, and the positioning parts are matched with the plurality of positioning grooves to enable the backrest frame to have a plurality of stop positions;

the back rest is provided with a left connecting sleeve and a right connecting sleeve, the left connecting sleeve and the right connecting sleeve are sleeved on the left side and the right side of the back rest respectively, the rear handrail part is provided with a sliding groove part and a sliding groove inlet part, the second connecting sleeves are provided with a first blocking part and a sliding part, the first blocking part extends into and extends out of the sliding groove inlet part, and the sliding part slides on the sliding groove part;

the positioning groove comprises a front side wall and a rear side wall, when the positioning part is inserted into the positioning groove, an included angle is formed between the front side wall and the front side surface of the positioning part, and the rear side wall is tightly attached to the rear side surface of the positioning part;

the left side and the right side of the backrest frame are respectively provided with a long hole, and the positioning sleeve is fixedly installed on the backrest frame through a fastener and the long holes.

Preferably, the third connecting assembly comprises a fifth connecting piece and a sixth connecting piece, the fifth connecting piece and the sixth connecting piece are fixedly connected through a clamping joint, the fifth connecting piece and the sixth connecting piece are installed on one side of the front armrest piece in a matched mode through the clamping joint, and the dining table is installed above the fifth connecting piece and the sixth connecting piece through fasteners and is provided with a plurality of stop positions.

Preferably, a horizontal first clamping groove is formed in one side of the front handrail member, a first protruding portion is arranged on one side, close to the front handrail member, of the fifth connecting member, a second protruding portion is arranged on one side, close to the front handrail member, of the sixth connecting member, the bottom surface of the first protruding portion abuts against the bottom surface of the first clamping groove, and the top surface of the second protruding portion abuts against the top surface of the first clamping groove;

the fifth connecting piece is provided with an L-shaped second clamping groove, the sixth connecting piece extends to form an L-shaped first extending part, and the sixth connecting piece is clamped and installed on the fifth connecting piece from top to bottom through the formula of the first extending part and the second clamping groove;

one side of the second clamping groove, which is close to the front handrail piece, is provided with a first notch, one side of the first extending portion, which is close to the front handrail piece, is provided with a second extending portion, the bottom surface of the first clamping groove is provided with a plurality of third clamping grooves, when the top surface of the second protruding portion abuts against the top surface of the first clamping groove, the bottom surface of the second extending portion is lower than the bottom surface of the first protruding portion, and the second extending portion is located in the third clamping groove.

A folding dining chair for infants comprises the framework of the folding dining chair for infants.

Preferably, the folding chair further comprises two bottom plates and a flexible piece, wherein the two bottom plates are fixedly arranged above the front chair seat piece and the rear chair seat piece respectively, the flexible piece at least wraps the outer sides of the chair seat frame, the armrest frame and the backrest frame and is fixed through a zipper, a magic tape, a button or a button, and the flexible piece is matched with the two bottom plates to form a cavity with an opening on the upper end face;

still be equipped with four rubber sleeves, four rubber sleeves are through the mode of bonding fixed mounting respectively in the bottom of preceding support piece and back support piece, avoid folding dining chair and ground rigid contact then.

The invention has the beneficial effects that:

1) When the dining chair is not needed to be used, the dining chair can be folded, the occupied space is reduced, particularly, the dining chair is particularly suitable for being used when people go out and is convenient to carry, in addition, the dining chair has few parts and is simple in structure, and the material cost is saved.

2) The utility model discloses a folding dining chair, including front armrest spare, back armrest spare, preceding seat spare, back seat spare, preceding support piece, back support piece, when two fourth connecting pieces expand completely, back armrest spare and preceding armrest spare are in on same height, and form firm triangular structure with two fourth connecting pieces, the cooperation of back armrest spare and preceding armrest spare and two fourth connecting pieces has also restricted preceding support piece and the trend that back support piece continues to expand to both sides simultaneously, then preceding support piece and back support piece also form firm triangular structure with ground, and then improved the stability of infant with folding dining chair's skeleton.

3) The outside of handrail spare in the front is all installed through the mode of joint to fifth connecting piece and sixth connecting piece, does not adopt the screw, and the structure is ingenious, and the dining table passes through the screw to be installed on two fifth connecting pieces and two sixth connecting pieces, and then has accomplished the fixed to the dining table promptly, and the dining table is simultaneously also further strengthened the steadiness of fifth connecting piece and the installation of sixth connecting piece.

Drawings

FIG. 1 is a schematic view of the dining chair in a fully unfolded state (with the flexible parts omitted);

FIG. 2 is a first schematic view (omitting the top) of the fully unfolded frame of the dining chair of the present invention;

figure 3 is a second structural view of the dining chair framework in a fully unfolded state;

FIG. 4 is a right side view of FIG. 3 of the present invention;

FIG. 5 is an enlarged view of a portion of the invention at I of FIG. 3;

FIG. 6 is an enlarged view of a portion of the invention at II of FIG. 3;

FIG. 7 is a schematic view of the third connecting assembly of the present invention installed with a front armrest member;

FIG. 8 is an exploded view of FIG. 7 in accordance with the present invention;

FIG. 9 is a schematic view of a fifth connector according to the present invention;

FIG. 10 is a schematic structural view of a sixth connecting member according to the present invention;

FIG. 11 is a schematic view of the front armrest of the present invention;

FIG. 12 is a schematic view of a first connector of the present invention;

FIG. 13 is a schematic view of the positioning sleeve, the second connecting sleeve and the rear armrest of the present invention;

FIG. 14 is an exploded view of FIG. 13 in accordance with the present invention;

FIG. 15 is a schematic structural view of a second connecting assembly of the present invention;

fig. 16 is an exploded view of fig. 15 in accordance with the present invention.

Description of the reference numerals: 10. a front armrest member; 11. a rear armrest member; 12. a front seat member; 13. a rear seat member; 14. a front support; 15. a rear support member; 16. a backrest frame; 17. a dining table plate; 20. a first connecting member; 21. a fourth connecting member; 22. a first connecting sleeve; 200. a first case; 201. a second box body; 202. a second blocking portion; 30. a second connecting member; 31. a third connecting member; 32. a rotating shaft; 33. a connecting seat; 300. a second mounting hole; 330. a first notch; 331. a slot; 40. a positioning sleeve; 400. a positioning part; 110. positioning a groove; 41. a second connecting sleeve; 111. a slide groove portion; 112. a chute inlet part; 410. a first blocking portion; 411. a first mounting hole; 412. a sliding part; 413. a second notch; 401. a filling section; 42. a support bar; 50. a fifth connecting member; 51. a sixth connecting member; 100. a first card slot; 500. a first boss portion; 510. a second boss portion; 501. a second card slot; 511. a first extension portion; 502. a third notch; 512. a second extension portion; 101. a third card slot; 43. a base plate; 44. a rubber sleeve.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

In this embodiment, when a person is seated on the dining chair, the person faces in the "front" direction, the person faces in the "back" direction, the left hand is on the "left" side, and the right hand is on the "right" side.

The first embodiment is as follows:

2-4, the framework of the folding dining chair for infants comprises a dining table plate 17 for placing tableware, a chair seat frame, a handrail frame, a back frame 16 and a support frame for contacting with the ground, wherein the handrail frame is arranged on the back frame 16 or the chair seat frame, and the dining table plate 17 is fixedly arranged on the handrail frame;

in this embodiment, a left first connecting assembly and a right first connecting assembly, a left second connecting assembly and a right second connecting assembly and a left third connecting assembly are further provided;

the armrest frame comprises a left front armrest part 10, a right front armrest part 10 and a left rear armrest part 11, the front armrest part 10 is rotatably arranged on the front side of the first connecting component, and the rear armrest part 11 is rotatably arranged on the rear side of the first connecting component;

the seat frame comprises at least one front seat part 12 and at least one rear seat part 13, wherein the front seat part 12 is rotatably arranged at the front side of the second connecting assembly, and the rear seat part 13 is rotatably arranged at the rear side of the second connecting assembly;

the support frame comprises a front support piece 14 and a rear support piece 15, the front support piece 14 and the rear support piece 15 are rotatably arranged at the lower side of the first connecting component, and the front support piece 14 is positioned at the front side of the rear support piece 15;

the front seat part 12 is hinged with the front supporting part 14, and the rear seat part 13 is hinged with the rear supporting part 15;

the dining table plate 17 is arranged on the armrest frame through a third connecting assembly and is provided with a plurality of mounting positions;

the bottom of back rest 16 is articulated with the second coupling assembling, the upper half of back rest 16 cooperates with two back arm rest 11 of left and right sides in order to have a plurality of stop positions.

When the framework of the folding dining chair for infants is completely unfolded, the front armrest piece 10, the rear armrest piece 11, the front seat piece 12 and the rear seat piece 13 are horizontally arranged, and the backrest frame 16, the front support piece 14 and the rear support piece 15 are obliquely arranged;

when the frame of the foldable dining chair for infants is folded together, the front arm rest 10, the rear arm rest 11, the front seat 12, the rear seat 13, the backrest frame 16, the front support 14 and the rear support 15 are all arranged vertically.

So set up, when need not using this dining chair, can draw in it in, reduce occupation space, especially, this dining chair is particularly useful for using when going out, conveniently carries, and this dining chair spare part is few in addition, simple structure, material saving cost.

In this embodiment, the first connecting assembly includes a first connecting member 20, two fourth connecting members 21 and two first connecting sleeves 22, the front handrail member 10 is rotatably installed at the front side of the first connecting member 20, and the rear handrail member 11 is rotatably installed at the rear side of the first connecting member 20; the front supporting piece 14 and the rear supporting piece 15 are rotatably installed at the lower side of the first connecting piece 20, the two first connecting sleeves 22 are slidably sleeved on the front supporting piece 14 and the rear supporting piece 15 respectively, the top ends of the two fourth connecting pieces 21 are hinged with the front handrail piece 10 and the rear handrail piece 11 respectively, the bottom ends of the two fourth connecting pieces 21 are hinged with each other, and the middle parts of the two fourth connecting pieces 21 are hinged with the two first connecting sleeves 22 respectively.

So set up, present handrail spare 10, back handrail spare 11, preceding seat spare 12, back seat spare 13, preceding support piece 14, back support piece 15, when two fourth connecting pieces 21 expand completely, back handrail spare 11 and preceding handrail spare 10 are in on the same height, and form firm triangular structure with two fourth connecting pieces 21, the trend that preceding support piece 14 and back support piece 15 continue to expand to both sides has also been restricted to cooperation of back handrail spare 11 and preceding handrail spare 10 and two fourth connecting pieces 21 simultaneously, then preceding support piece 14 and back support piece 15 also form firm triangular structure with ground dining chair, and then improved the stability of infant with the skeleton of folding chair.

In this embodiment, as shown in fig. 12, the first connecting member 20 is a box-shaped structure with an open lower end surface and is symmetrical, and includes a first box 200 and a second box 201, the first box 200 is longer than the second box 201 in the front-rear direction, the top ends of the front support 14 and the rear support 15 are rotatably installed in the first box 200, and the rear end of the front handrail member 10 and the front end of the rear handrail member 11 are respectively located on two sides of the second box 201 and rotatably installed on the outer surface of the first box 200.

Preferably, the second blocking portions 202 are disposed on the second case 201 at the front and rear sides, and the second blocking portions 202 are used for limiting the upward rotation of the front arm members 10 and the rear arm members 11, that is, when the framework of the foldable dining chair for infants is fully unfolded, the second blocking portions 202 are used for preventing the front arm members 10 and the rear arm members 11 from continuing to rotate upward, and when the framework of the foldable dining chair for infants is fully folded, the second case 201 itself can be used for blocking the front arm members 10 and the rear arm members 11 from continuing to rotate toward each other.

In this embodiment, the fourth connecting members 21 are linear plate-shaped structures, the fourth connecting members 21 are sequentially provided with a first hinge hole, a second hinge hole and a third hinge hole from top to bottom, in the rotating process of the fourth connecting members 21, the first hinge holes on the two fourth connecting members 21 are always located on the same horizontal plane, and the second hinge holes on the two fourth connecting members 21 are always located on the same horizontal plane; this is provided to ensure that the rotation of the two fourth connecting members 21 is always consistent, and in other embodiments, the fourth connecting members 21 may also be rod-shaped.

In this embodiment, as shown in fig. 5, the first connecting sleeve 22 and the third U-shaped tube are in clearance fit; this is because a certain space is needed between the first connecting sleeve 22 and the third U-shaped tube to ensure that the framework of the foldable dining chair for infants can be folded and unfolded.

In this embodiment, as shown in fig. 6, 15 and 16, the second connecting assembly includes a connecting seat 33, and a second connecting member 30, a third connecting member 31 and a rotating shaft 32 mounted on the connecting seat 33, the two connecting seats 33 are located inside the second connecting member 30 and the third connecting member 31, the second connecting member 30 and the third connecting member 31 are hinged through the rotating shaft 32, the seat frame includes a front seat member 12 and two rear seat members 13, the front seat member 12 and the rear seat member 13 are both U-shaped tubes, the front seat member 12 is fixedly connected to the left and right second connecting members 30, the two rear seat members 13 are fixedly connected to the left and right third connecting members 31, respectively, and the bottom of the backrest frame 16 is rotatably mounted outside the two second connecting members 30.

In this embodiment, the second connecting members 30 are provided with second mounting holes 300, and the bottom of the backrest frame 16 is rotatably mounted at the outer sides of the two second connecting members 30 through the second mounting holes 300.

So arranged, the second and

third links

30, 31 cooperate to permit the front and

rear seat members

12, 13 to be rotated relative to each other, while also permitting the backrest frame 16 to be rotated relative to the seat members.

In this embodiment, the connecting seat 33 includes integrated into one piece's base and two protruding pieces, and two protruding piece cooperations form first breach 330 and slot 331, the one end of axis of rotation 32 stretches into in the first breach 330, be equipped with on the third connecting piece 31 and insert the portion of establishing, insert the portion of establishing and establish and fix in slot 331, further preferred, still be equipped with a spring, the spring is used for rotating axis of rotation 32 and connecting seat 33 further fixed together to prevent connecting seat 33 roll-off downwards.

In this embodiment, as shown in fig. 13 and 14, a left positioning sleeve and a right positioning sleeve 40 are further provided, the backrest frame 16 is a U-shaped tube, the two positioning sleeves 40 are respectively sleeved on the left side and the right side of the backrest frame 16, the positioning sleeves 40 are provided with positioning portions 400, a plurality of positioning grooves 110 are distributed at intervals on the rear armrest piece 11, and the positioning portions 400 are matched with the plurality of positioning grooves 110 to enable the backrest frame 16 to have a plurality of stop positions.

In this embodiment, a left second connecting sleeve 41 and a right second connecting sleeve 41 are further provided, the two second connecting sleeves 41 are respectively sleeved on the left side and the right side of the backrest frame 16, the rear armrest 11 is provided with a sliding groove portion 111 and a sliding groove inlet portion 112, the second connecting sleeve 41 is provided with a first blocking portion 410 and a sliding portion 412, the first blocking portion 410 extends into and extends out from the sliding groove inlet portion 112, and the sliding portion 412 slides on the sliding groove portion 111; the back rest frame 16 and the rear handrail member 11 are linked by the second connecting sleeve 41, that is, the back rest frame 16 and the rear handrail member 11 can be driven to rotate with each other; it should be noted that, when the first blocking portion 410 extends from the chute entrance 112 and moves to the chute portion 111, the chute entrance 112 is covered by a cover plate to prevent the first blocking portion 410 from extending from the chute entrance 112.

In this embodiment, the positioning groove 110 includes a front sidewall and a rear sidewall, when the positioning portion 400 is inserted into the positioning groove 110, the front sidewall forms an included angle with the front side surface of the positioning portion 400, and the rear sidewall is tightly attached to the rear side surface of the positioning portion 400; further preferably, the left side and the right side of the backrest frame 16 are respectively provided with a vertical slot, and the positioning sleeve 40 is fixedly installed on the backrest frame 16 through a fastener and the slot.

It should be noted that, when the framework of the foldable dining chair for infants is not completely unfolded, the second connecting sleeve 41 is located at the rear end of the back arm member 11, at this time, the back arm member 11 rotates to drive the back rest frame 16 to rotate, but when the framework of the foldable dining chair for infants is completely unfolded, the back rest member 11 can not rotate upwards any more, the back rest frame 16 has a space for rotating upwards, and during the process of rotating upwards the back rest frame 16, the second connecting sleeve 41 slides from the rear end of the back arm member 11 to the front end, and the relative position between the second connecting sleeve 41 and the back rest frame 16 is not changed basically;

the positioning sleeve 40 is located above the second connecting sleeve 41, and in the process of upward rotation of the backrest frame 16, the positioning sleeve 40 also slides to the front end from the rear end of the back armrest 11, but due to the matching of the positioning portion 400 and the positioning groove 110, the positioning sleeve 40 can reciprocate within the range of the long hole, after the specific position of the backrest frame 16 is adjusted, the positioning sleeve 40 can be fixedly installed on the backrest frame 16 by using a fastener, wherein an included angle is formed between the front side surface of the positioning portion 400 and the front side wall of the positioning groove 110 so as to facilitate the sliding of the positioning sleeve 40, and the rear side surface of the positioning portion 400 is attached to the rear side wall of the positioning groove 110 so as to ensure the stability of the backrest frame 16.

Preferably, an arc-shaped second gap 413 is formed in the second connecting sleeve 41, a filling part 401 matched with the second gap 413 in shape is formed in the positioning sleeve 40, and the filling part 401 is located in the second gap 413; with this arrangement, when the positioning sleeve 40 is fixedly mounted on the backrest frame 16 by the fastener, the second connecting sleeve 41 is also fixed by the cooperation of the second notch 413 and the filling part 401.

In this embodiment, a support rod 42 is further provided, a first mounting hole 411 is further provided on the positioning sleeve 40, and two ends of the support rod 42 are respectively and fixedly mounted in the first mounting holes 411 on the positioning sleeves 40 at two sides through fasteners; so arranged, the installation of the support rod 42 on the backrest frame 16 is facilitated.

In this embodiment, as shown in fig. 7 to 10, the third connecting assembly includes a fifth connecting member 50 and a sixth connecting member 51, the fifth connecting member 50 and the sixth connecting member 51 are fixedly connected by a snap-fit connection, the fifth connecting member 50 and the sixth connecting member 51 are cooperatively mounted on one side of the front armrest member 10 by a snap-fit connection, and the dining table is mounted above the fifth connecting member 50 and the sixth connecting member 51 by fasteners and has a plurality of stop positions.

So set up, the outside of handrail spare 10 in the front is all installed through the mode of joint to fifth connecting piece 50 and sixth connecting piece 51, does not adopt the screw, and the structure is ingenious, and the dining table passes through the screw mounting on two fifth connecting pieces 50 and two sixth connecting pieces 51, and then has accomplished the fixed to the dining table promptly, and the dining table has also further strengthened the steadiness of fifth connecting piece 50 and the installation of sixth connecting piece 51 simultaneously.

Preferably, as shown in fig. 11, a horizontal first slot 100 is disposed on one side of the front armrest 10, a first protrusion 500 is disposed on one side of the fifth connecting member 50 close to the front armrest 10, a second protrusion 510 is disposed on one side of the sixth connecting member 51 close to the front armrest 10, a bottom surface of the first protrusion 500 abuts against a bottom surface of the first slot 100, and a top surface of the second protrusion 510 abuts against a top surface of the first slot 100; further preferably, the first protrusion 500 has a horizontal long structure, and the second protrusion 510 has a horizontal long structure, so as to ensure that the fifth connecting member 50 and the sixth connecting member 51 do not shake after the installation.

Still further preferably, an L-shaped second slot 501 is formed in the fifth connecting member 50, the sixth connecting member 51 extends to form an L-shaped first extending portion 511, and the sixth connecting member 51 is mounted on the fifth connecting member 50 by being clamped from top to bottom through the first extending portion 511 and the second slot 501.

It should be noted that, in order to ensure that a large force exists between the bottom surface of the first protrusion 500 and the bottom surface of the first card slot 100 and a large force exists between the top surface of the second protrusion 510 and the top surface of the first card slot 100, when the sixth connecting element 51 is mounted on the fifth connecting element 50 by means of clamping, the fifth connecting element 50 forces the sixth connecting element 51 to have a tendency to move upward. Preferably, at least one side wall of the second engaging groove 501 is inclined, and the distance between the side walls of the second engaging groove 501 from bottom to top is gradually increased, so that when the fifth connecting member 50 and the sixth connecting member 51 are mounted, the sixth connecting member 51 is first placed on the fifth connecting member 50, and then the first protruding portion 500 and the second protruding portion 510 are simultaneously clamped into the first groove.

In this embodiment, a third notch 502 is disposed on one side of the second slot 501 close to the front armrest 10, a second extending portion 512 is disposed on one side of the first extending portion 511 close to the front armrest 10, a plurality of third slots 101 are disposed on the bottom surface of the first slot 100, when the top surface of the second protrusion 510 abuts against the top surface of the first slot 100, the bottom surface of the second extending portion 512 is lower than the bottom surface of the first protrusion 500, and the second extending portion 512 passes through the third notch 502 and is located in the third slot 101; particularly, during the installation process of the fifth link 50 and the sixth link 51, the second extension part 512 needs to be aligned with the third slot 101, so that the fifth link 50 and the sixth link 51 can be successfully installed, wherein the second extension part 512 is located in different third slots 101, so that the dining table has a plurality of resting positions, and the dining table position can be determined according to infants with different body sizes.

Referring to fig. 1, the folding dining chair for infants comprises the framework of the folding dining chair for infants.

In this embodiment, the chair further comprises two bottom plates 43 and a flexible member, wherein the two bottom plates 43 are respectively and fixedly installed above the front seat member 12 and the rear seat member 13, the flexible member at least wraps the outer sides of the chair seat frame, the armrest frame and the backrest frame 16 and is fixed through a zipper, a magic tape, a button or a button, and the flexible member is matched with the two bottom plates 43 to form a cavity with an opening on the upper end face; wherein, the flexible piece can be a cloth cover or a leather cover.

Preferably, four rubber sleeves 44 are provided, and the four rubber sleeves 44 are fixedly attached to the bottom of the front support 14 and the bottom of the rear support 15 by bonding, so as to prevent the folding dining chair from rigidly contacting the ground.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A framework of a folding dining chair for infants comprises a dining table plate (17) for placing tableware, a chair seat frame, an armrest frame, a backrest frame (16) and a support frame for contacting with the ground, wherein the dining table plate (17) is fixedly arranged on the armrest frame; it is characterized in that the preparation method is characterized in that,

the armrest frame comprises a left front armrest piece, a right front armrest piece (10) and a left rear armrest piece (11), the front armrest piece (10) is rotatably arranged on the front side of the first connecting assembly, and the rear armrest piece (11) is rotatably arranged on the rear side of the first connecting assembly;

the seat frame comprises at least one front seat part (12) and at least one rear seat part (13), the front seat part (12) is rotatably arranged at the front side of the second connecting assembly, and the rear seat part (13) is rotatably arranged at the rear side of the second connecting assembly;

the support frame comprises a front support piece (14) and a rear support piece (15), the front support piece (14) and the rear support piece (15) are rotatably arranged at the lower side of the first connecting component, and the front support piece (14) is positioned at the front side of the rear support piece (15);

the front chair seat part (12) is hinged with the front supporting part (14), and the rear chair seat part (13) is hinged with the rear supporting part (15);

the bottom end of the backrest frame (16) is hinged with a second connecting assembly, and the upper half part of the backrest frame (16) is matched with the left rear handrail piece and the right rear handrail piece (11) to form a plurality of stopping positions;

the dining table plate (17) is arranged on the armrest frame through a third connecting assembly and is provided with a plurality of mounting positions;

the second connecting assembly comprises connecting seats (33), second connecting pieces (30), third connecting pieces (31) and a rotating shaft (32), the second connecting pieces (30), the third connecting pieces (31) and the rotating shaft (32) are installed on the connecting seats (33), the two connecting seats (33) are located on the inner sides of the second connecting pieces (30) and the third connecting pieces (31), the second connecting pieces (30) and the third connecting pieces (31) are hinged through the rotating shaft (32), the seat frame comprises a front seat piece (12) and two rear seat pieces (13), the front seat piece (12) and the rear seat pieces (13) are both U-shaped tubes, the front seat piece (12) is fixedly connected with the left second connecting pieces (30) and the right second connecting pieces (30) respectively, the two rear seat pieces (13) are fixedly connected with the left third connecting pieces and the right third connecting pieces (31) respectively, and the bottom of the backrest frame (16) is rotatably installed on the outer sides of the two second connecting pieces (30);

the second connecting pieces (30) are provided with second mounting holes (300), and the bottoms of the backrest frames (16) are rotatably mounted on the outer sides of the two second connecting pieces (30) through the second mounting holes (300).

2. The framework of a foldable dining chair for infants, as claimed in claim 1, wherein said first connecting assembly comprises a first connecting member (20), two fourth connecting members (21) and two first connecting sleeves (22), said front arm members (10) being rotatably mounted on the front side of said first connecting member (20), said rear arm members (11) being rotatably mounted on the rear side of said first connecting member (20); the front supporting piece (14) and the rear supporting piece (15) are rotatably arranged on the lower side of the first connecting piece (20), the two first connecting sleeves (22) can be sleeved on the front supporting piece (14) and the rear supporting piece (15) in a sliding mode respectively, the top ends of the two fourth connecting pieces (21) are hinged with the front handrail piece (10) and the rear handrail piece (11) respectively, the bottom ends of the two fourth connecting pieces (21) are hinged with each other, and the middle parts of the two fourth connecting pieces (21) are hinged with the two first connecting sleeves (22) respectively.

3. The framework of a foldable dining chair for infants, as claimed in claim 2, wherein said first connecting member (20) is of a box-like structure with an open lower end and symmetry, and comprises a first box (200) and a second box (201), said first box (200) is longer than said second box (201) in the front-rear direction, the top end of said front support (14) and the top end of said rear support (15) are rotatably mounted in said first box (200), the rear end of said front arm (10) and the front end of said rear arm (11) are respectively located at two sides of said second box (201) and rotatably mounted on the outer surface of said first box (200).

4. The framework of a foldable dining chair for infants, as claimed in claim 2, wherein said first connecting sleeve (22) and said third U-shaped tube are in clearance fit.

5. The framework of a foldable dining chair for infants as claimed in claim 1, wherein there are left and right positioning sleeves (40), the backrest frame (16) is a U-shaped tube, the two positioning sleeves (40) are respectively sleeved on the left and right sides of the backrest frame (16), a positioning portion (400) is provided on the positioning sleeve (40), a plurality of positioning slots (110) are distributed on the rear armrest member (11) at intervals, and the positioning portion (400) is matched with the plurality of positioning slots (110) to enable the backrest frame (16) to have a plurality of resting positions;

the back rest is characterized by further comprising a left second connecting sleeve and a right second connecting sleeve (41), the two second connecting sleeves (41) are respectively sleeved on the left side and the right side of the back rest frame (16), a sliding groove part (111) and a sliding groove inlet part (112) are arranged on the rear handrail part (11), a first blocking part (410) and a sliding part (412) are arranged on the second connecting sleeves (41), the first blocking part (410) extends into and extends out of the sliding groove inlet part (112), and the sliding part (412) slides on the sliding groove part (111);

the positioning groove (110) comprises a front side wall and a rear side wall, when the positioning part (400) is inserted into the positioning groove (110), an included angle is formed between the front side wall and the front side surface of the positioning part (400), and the rear side wall is tightly attached to the rear side surface of the positioning part (400);

the left side and the right side of the backrest frame (16) are respectively provided with a long hole, and the positioning sleeve (40) is fixedly installed on the backrest frame (16) through a fastener and the long holes.

6. Framework of a folding dining chair for infants, as claimed in claim 1, characterized in that said third connecting assembly comprises a fifth connecting member (50) and a sixth connecting member (51), said fifth connecting member (50) and said sixth connecting member (51) are connected fixedly by snap-in, said fifth connecting member (50) and said sixth connecting member (51) are fitted and mounted by snap-in on one side of the front arm members (10), said dining table is mounted above the fifth connecting member (50) and the sixth connecting member (51) by fasteners and has a plurality of resting positions.

7. The framework of a foldable dining chair for infants, as claimed in claim 6, wherein a horizontal first slot (100) is provided at one side of the front arm (10), a first protrusion (500) is provided at one side of the fifth connecting member (50) close to the front arm (10), a second protrusion (510) is provided at one side of the sixth connecting member (51) close to the front arm (10), a bottom surface of the first protrusion (500) abuts against a bottom surface of the first slot (100), and a top surface of the second protrusion (510) abuts against a top surface of the first slot (100);

an L-shaped second clamping groove (501) is formed in the fifth connecting piece (50), the sixth connecting piece (51) extends to form an L-shaped first extending portion (511), and the sixth connecting piece (51) is installed on the fifth connecting piece (50) in a clamped mode from top to bottom through formulas of the first extending portion (511) and the second clamping groove (501);

one side, close to the front handrail piece (10), of the second clamping groove (501) is provided with a third notch (502), one side, close to the front handrail piece (10), of the first extending portion (511) is provided with a second extending portion (512), the bottom surface of the first clamping groove (100) is provided with a plurality of third clamping grooves (101), when the top surface of the second protruding portion (510) abuts against the top surface of the first clamping groove (100), the bottom surface of the second extending portion (512) is lower than the bottom surface of the first protruding portion (500), and the second extending portion (512) penetrates through the third notch (502) and is located in the third clamping groove (101).

8. A folding dining chair for infants, comprising a framework of a folding dining chair for infants according to any one of claims 1 to 7.

9. The foldable dining chair for infants, as claimed in claim 8, further comprising two bottom plates (43) and a flexible member, wherein the two bottom plates (43) are fixedly installed above the front seat member (12) and the rear seat member (13), respectively, the flexible member wraps at least the outer sides of the seat frame, the armrest frame and the backrest frame (16) and is fixed by a zipper, a magic tape, a button or a button, and forms a cavity with an open upper end by cooperating with the two bottom plates (43);

the rubber sleeve is characterized by further comprising four rubber sleeves (44), wherein the four rubber sleeves (44) are fixedly arranged at the bottoms of the front supporting piece (14) and the rear supporting piece (15) respectively in an adhesion mode.