CN215874106U

CN215874106U - Folding structure of child seat

Info

Publication number: CN215874106U
Application number: CN202122002924.3U
Authority: CN
Inventors: 陈剑伦; 周志勇
Original assignee: Ningbo Colet Electrical Appliance Co ltd
Current assignee: Ningbo Colet Electrical Appliance Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-22
Anticipated expiration: 2031-08-24

Abstract

The utility model relates to the technical field of child seats, in particular to a folding structure of a child seat; the chair comprises a chair seat assembly, wherein the chair seat assembly comprises a chair plate and a back plate, and the lower end of the back plate is rotatably connected with the rear end of the chair plate through a first hinge; the two sides of the seat component are respectively provided with a handrail component, and the rear ends of the handrail components are rotatably connected with the middle part of the back plate through a second hinge; a connecting rod assembly is arranged below the handrail assembly, the middle of the handrail assembly is rotatably connected with the upper end of the connecting rod assembly through a third hinge, the lower end of the connecting rod assembly is rotatably connected with the middle of the seat plate through a fourth hinge, and a locking device is arranged between the connecting rod assembly and the fourth hinge; the folding chair seat assembly is reasonable in structure, the chair seat assembly can be folded and deformed, the handrail assemblies can be stored on two sides of the folded chair seat assembly, the folding connecting rod assemblies of the chair seat assembly are respectively stored on two sides of the seat plate, the overall thickness of the folded chair seat assembly is smaller, the occupied space is reduced, and the transportation and storage are convenient.

Description

Folding structure of child seat

Technical Field

The utility model relates to the technical field of child seats, in particular to a folding structure of a child seat.

Background

The child dining chair is a special chair for young children to learn and participate in dining, and in order to prevent children (especially infants) from falling off from the chair seat when taking, the front armrests are usually required to be arranged, and the middle parts of the front armrests are provided with stopping parts which can separate the two feet of the children so as to avoid the phenomenon that the children fall off. There is also a safety requirement in european and american countries for the size of the front arm-rest of a child safety seat, requiring that the child's feet cannot be inserted into the same side of the stop at the same time. At present, the child dining chairs in the market are classified according to the materials, and can be divided into wooden dining chairs, plastic dining chairs, metal dining chairs, material mixed dining chairs and the like. The existing child dining chair has various structures and different functions, and besides safety performance, structural improvement of the child chair is usually based on a foldable function, so that the child chair can be deformed to reduce the size, the storage and transportation in a production circulation link are facilitated, and the occupied space of a user is reduced when the child dining chair is not used.

Chinese patent CN109875315A discloses a folding child dining chair, which comprises a seat board, wherein the rear part of the seat board is rotatably connected with a backrest frame, a dinner plate frame rotatably connected with the backrest frame is arranged above the seat board, X-shaped supports for supporting the seat board are arranged on two sides of the seat board, each X-shaped support comprises a front support and a rear support which are hinged with each other, the upper end of the front support is rotatably connected with the rear side of the seat board, the front side of the seat board is rotatably connected with a connecting sleeve, the upper end of the rear support is provided with a supporting rod, the supporting rod penetrates through the connecting sleeve and is rotatably connected with the dinner plate frame, one side of the dinner plate frame connected with the backrest frame is provided with a first accommodating cavity matched with the backrest frame, and the lower side of the front support is provided with a second accommodating cavity matched with the dinner plate frame; when the dining chair is folded, the backrest frame is folded and accommodated in the first accommodating cavity, and the dinner plate frame is folded and accommodated in the second accommodating cavity.

This patent inlays in the first intracavity that holds, the dinner plate frame wholly inlays in the second intracavity that holds through the back frame, can make children's dining chair fold and become a flat board, has that the focus is more steady, occupation space is less, move convenient effect. Seat and chair frame structure hinge among this kind of prior technical scheme, form normal running fit through a plurality of pin joints between the two and realize folding effect, nevertheless because its seat support itself can't be folded, overall structure when causing to accomodate still has great thickness, and the realization of maximize is flattened and is designed the purpose of reducing the volume.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a folding structure of a child seat, which has the advantages of reasonable structure, small folding thickness and convenience in storage and transportation, aiming at the defects and shortcomings of the prior art.

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

the child seat folding structure comprises a seat component, wherein the seat component comprises a seat board and a back board, and the lower end of the back board is rotatably connected with the rear end of the seat board through a first hinge; the two sides of the seat component are respectively provided with a handrail component, and the rear ends of the handrail components are rotatably connected with the middle part of the back plate through a second hinge; the handrail assembly is provided with a connecting rod assembly below, the middle of the handrail assembly is rotatably connected with the upper end of the connecting rod assembly through a third hinge, the lower end of the connecting rod assembly is rotatably connected with the middle of the seat plate through a fourth hinge, and a locking device is arranged between the connecting rod assembly and the fourth hinge.

According to the scheme, the first hinge, the second hinge, the third hinge and the fourth hinge are used as four vertexes of a diamond structure on the same plane.

According to the scheme, the first hinge comprises a first hinge seat arranged at the rear end of the seat plate and a first hinge end arranged at the lower end of the back plate, and the first hinge seat and the first hinge end are rotatably connected through a rotating shaft.

According to the scheme, the two side edges of the seat plate are provided with the guard plates, the rear ends of the two guard plates are provided with the first hinged support, and the lower end of the back plate is provided with two first pivot ends matched with the first hinged support.

According to the scheme, a concave notch is formed in one side edge, opposite to the back plate, of the guard plate, and the concave notch and the second hinge are arranged in a matched mode when the seat plate and the back plate are folded.

According to the scheme, the fourth hinge comprises a fourth hinge end arranged at the lower end of the connecting rod assembly and a fourth hinge seat arranged in the middle of the seat plate, the fourth hinge end and the fourth hinge seat are rotatably connected through a rotating shaft, and a locking device is arranged between the fourth hinge end and the fourth hinge seat.

According to the scheme, the locking device comprises a bolt, a locking groove and a return spring, the locking groove is formed in the outer edge of the fourth hinged support, a sliding groove matched with the bolt is formed in the connecting rod assembly, and the bolt and the return spring are movably arranged in the sliding groove in a penetrating mode; the two ends of the reset spring are respectively connected with the sliding groove and the bolt column, so that one end of the bolt column is inserted into the locking groove, and the other end of the bolt column is provided with a pulling key.

According to the scheme, the front side of the seat board is provided with the turning plate, the upper end of the turning plate is rotatably connected with the front end of the seat board, and the lower end of the turning plate is provided with the pedal; the handrail component is provided with a dinner plate, and two ends of the dinner plate are respectively detachably arranged on the handrail component.

The utility model has the beneficial effects that: the foldable chair seat assembly is reasonable in structure, the chair seat assembly can be folded and deformed, the handrail assemblies can be stored on two sides of the folded chair seat assembly, the connecting rod assemblies are respectively stored on two sides of the seat plate after the chair seat assembly is folded, the locking device enables the overall structure of the chair seat assembly to be stable when the chair seat assembly is unfolded by limiting the rotation freedom degree of the fourth hinge, the overall thickness of the folded chair seat assembly is smaller, the occupied space is reduced, and the transportation and storage are convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side cross-sectional structural schematic of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2;

FIG. 4 is a schematic illustration of a disassembled structure of a portion of the connecting rod assembly of the present invention;

fig. 5 is a schematic view of the folded overall structure of the present invention.

In the figure:

1. a seat assembly; 2. an armrest assembly; 3. a connecting rod assembly; 11. a seat plate; 12. a back plate; 13. a first hinge; 14. a guard plate; 15. a fourth free bearing; 16. turning over a plate; 17. a step plate; 121. a first hinge end; 131. a first hinge base; 141. a recessed notch; 151. locking the groove; 21. a second hinge; 22. a third hinge; 23. a dinner plate; 31. a fourth hinge; 32. a stud; 33. pulling the key; 311. a fourth pivot end; 312. a chute; 321. a return spring.

Detailed Description

The technical solution of the present invention is described below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 5, the folding structure of a child seat comprises a seat assembly 1, wherein the seat assembly 1 comprises a seat plate 11 and a back plate 12, and the lower end of the back plate 12 is rotatably connected with the rear end of the seat plate 11 through a first hinge 13; the seat plate 11 and the back plate 12 rotate relatively through the first hinge 13, so that the seat assembly 1 can be folded and deformed, and the occupied space is reduced for transportation and storage.

The two sides of the seat component 1 are both provided with armrest components 2, and the rear ends of the armrest components 2 are rotatably connected with the middle part of the back plate 12 through second hinges 21; the armrest assembly 2 and the back plate 12 can rotate relatively through the second hinge 21, and the armrest assembly 2 can be accommodated at two sides of the folded seat assembly 1, so that the occupied space is reduced.

The lower part of the handrail component 2 is provided with a connecting rod component 3, the middle part of the handrail component 2 is rotatably connected with the upper end of the connecting rod component 3 through a third hinge 22, and the lower end of the connecting rod component 3 is rotatably connected with the middle part of the seat plate 11 through a fourth hinge 31. Thereby link assembly 3 can rotate with handrail component 2, seat subassembly 1 relatively, thereby seat subassembly 1 folding back link assembly 3 accomodates respectively in 11 both sides of bedplate reduction space and occupies.

The first hinge 13, the second hinge 21 and the third hinge 22 are all unconstrained hinges to respectively rotatably connect the components, a locking device is arranged between the connecting rod assembly 3 and the fourth hinge 31, and the locking device keeps the stability of the whole structure when the seat component 1 is unfolded by limiting the rotational freedom degree of the fourth hinge 31.

The first hinge 13, the second hinge 21, the third hinge 22 and the fourth hinge 31 are arranged on the same plane as four vertexes of a diamond structure, so that a first side of the diamond structure is formed between the first hinge 13 and the second hinge 21, a second side of the diamond structure is formed between the second hinge 21 and the third hinge 22, a third side of the diamond structure is formed between the third hinge 22 and the fourth hinge 31, and a fourth side of the diamond structure is formed between the fourth hinge 31 and the first hinge 13, the diamond structure can be deformed by the rotatable connection of the four hinges, so that the child seat can be integrally folded and contracted, and when the diamond structure is unfolded, one inner corner of the diamond structure is locked after the locking device on the fourth hinge 31 is locked, so that the structure of the child seat is kept stable.

The first hinge 13 includes a first hinge seat 131 disposed at the rear end of the seat plate 11 and a first hinge end 121 disposed at the lower end of the back plate 12, and the first hinge seat 131 and the first hinge end 121 are rotatably connected through a rotating shaft. The two side edges of the seat plate 11 are provided with guard plates 14, the rear ends of the two guard plates 14 are provided with first hinge seats 131, and the lower end of the back plate 12 is provided with two first hinge ends 121 matched with the first hinge seats 131. Thereby backplate 14 is used for extending two sides of bedplate 11 and is convenient for set up first free bearing 131, and two first pivot ends 121 on backplate 12 set up respectively at the inboard of the first free bearing 131 that corresponds and rotate rather than and be connected, when seat subassembly 1 is folding bedplate 11 laminates with backplate 12 relatively and two backplate 14 cladding are in backplate 12 both sides to make seat subassembly 1 whole thickness after folding littleer, reduce the space and occupy and be convenient for the transportation storage.

The guard plate 14 and the back plate 12 are provided with a concave notch 141 on one side opposite to each other, when the seat plate 11 and the back plate 12 are folded, the concave notch 141 and the second hinge 21 are arranged in a matching manner, the concave notch 141 and the second hinge 21 can form a snap fit, so that the back plate 12 and the seat plate 11 can be closer to each other when folded, and the folded thickness can be reduced.

The fourth hinge 31 includes a fourth hinge end 311 disposed at the lower end of the connecting rod assembly 3 and a fourth hinge seat 15 disposed at the middle of the seat plate 11, the fourth hinge end 311 and the fourth hinge seat 15 are rotatably connected through a rotating shaft, and a locking device is disposed between the fourth hinge end 311 and the fourth hinge seat 15. The fourth pivot end 311 and the fourth hinge support 15 make the connecting rod assembly 3 rotatably connected with the seat plate 11 through a rotating shaft, the fourth pivot end 311 and the fourth hinge support 15 form one of the inner angles of the diamond structure, and the fourth hinge 31 is locked through a locking device, so that the stability between the seat plate 11 and the connecting rod assembly 3 is kept.

The locking device comprises a bolt 32, a locking groove 151 and a return spring 321, the locking groove 151 is formed in the outer edge of the fourth hinged support 15, a sliding groove 312 matched with the bolt 32 is formed in the connecting rod assembly 3, and the bolt 32 and the return spring 321 are movably arranged in the sliding groove 312 in a penetrating mode; the two ends of the return spring 321 are respectively connected to the sliding groove 312 and the stud 32, so that one end of the stud 32 is inserted into the locking groove 151, and the other end of the stud 32 is provided with a pulling key 33. The fourth hinge base 15 is connected to the link assembly 3 through a rotating shaft, so that the link assembly 3 can relatively rotate around the fourth hinge base 15, when the sliding groove 312 rotates along with the link assembly 3 and aligns with the position of the locking groove 151, the return spring 321 is inserted into the locking groove 151, and thus the fourth hinge end 311 and the fourth hinge base 15 are locked in the circumferential direction. Conversely, by pulling the key 33 to pull the pin 32 to slide along the sliding slot 312, the pin 32 is disengaged from the locking slot 151 against the resistance of the return spring 321, so that the fourth hinge 15 and the connecting rod assembly 3 can rotate relatively, thereby enabling the seat assembly 1, the armrest assembly 2 and the connecting rod assembly 3 to be folded and deformed.

A turning plate 16 is arranged at the front side of the seat plate 11, the upper end of the turning plate 16 is rotatably connected with the front end of the seat plate 11, and a foot pedal 17 is arranged at the lower end of the turning plate 16; a dinner plate 23 is arranged on the handrail component 2, and two ends of the dinner plate 23 are respectively detachably arranged on the handrail component 2.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims

1. A folding structure of a child seat comprises a seat component (1), and is characterized in that: the chair seat assembly (1) comprises a seat board (11) and a back board (12), wherein the lower end of the back board (12) is rotatably connected with the rear end of the seat board (11) through a first hinge (13); the two sides of the seat component (1) are respectively provided with a handrail component (2), and the rear end of each handrail component (2) is rotatably connected with the middle part of the back plate (12) through a second hinge (21); the handrail assembly is characterized in that a connecting rod assembly (3) is arranged below the handrail assembly (2), the middle of the handrail assembly (2) is rotatably connected with the upper end of the connecting rod assembly (3) through a third hinge (22), the lower end of the connecting rod assembly (3) is rotatably connected with the middle of the seat plate (11) through a fourth hinge (31), and a locking device is arranged between the connecting rod assembly (3) and the fourth hinge (31).

2. The child seat folding structure according to claim 1, wherein: the first hinge (13), the second hinge (21), the third hinge (22) and the fourth hinge (31) are used as four vertexes of a diamond structure on the same plane.

3. The child seat folding structure according to claim 1, wherein: the first hinge (13) comprises a first hinge seat (131) arranged at the rear end of the seat plate (11) and a first hinge end (121) arranged at the lower end of the back plate (12), and the first hinge seat (131) is rotatably connected with the first hinge end (121) through a rotating shaft.

4. The child seat folding structure according to claim 3, wherein: the two sides of the seat plate (11) are provided with guard plates (14), the rear ends of the two guard plates (14) are provided with first hinged supports (131), and the lower end of the back plate (12) is provided with two first hinge ends (121) matched with the first hinged supports (131).

5. The child seat folding structure according to claim 4, wherein: a concave notch (141) is formed in one side edge, opposite to the back plate (12), of the protection plate (14), and when the seat plate (11) and the back plate (12) are folded, the concave notch (141) and the second hinge (21) are arranged in a matched mode.

6. The child seat folding structure according to claim 1, wherein: the fourth hinge (31) comprises a fourth hinge end (311) arranged at the lower end of the connecting rod assembly (3) and a fourth hinge seat (15) arranged in the middle of the seat plate (11), the fourth hinge end (311) and the fourth hinge seat (15) are rotatably connected through a rotating shaft, and a locking device is arranged between the fourth hinge end (311) and the fourth hinge seat (15).

7. The child seat folding structure of claim 6, wherein: the locking device comprises a bolt (32), a locking groove (151) and a return spring (321), the locking groove (151) is formed in the outer edge of the fourth hinged support (15), a sliding groove (312) matched with the bolt (32) is formed in the connecting rod assembly (3), and the bolt (32) and the return spring (321) can movably penetrate through the sliding groove (312); two ends of the return spring (321) are respectively connected with the sliding groove (312) and the bolt (32) so that one end of the bolt (32) is inserted into the locking groove (151), and the other end of the bolt (32) is provided with a pulling key (322).

8. The child seat folding structure according to claim 1, wherein: a turning plate (16) is arranged at the front side of the seat plate (11), the upper end of the turning plate (16) is rotatably connected with the front end of the seat plate (11), and a pedal (17) is arranged at the lower end of the turning plate (16); a dinner plate (23) is arranged on the armrest component (2), and two ends of the dinner plate (23) are respectively detachably mounted on the armrest component (2).