CN211684777U

CN211684777U - Safety seat and angle limiting mechanism thereof

Info

Publication number: CN211684777U
Application number: CN201922294076.0U
Authority: CN
Inventors: 林江娟; 苏前刚; 李德欢
Original assignee: Ningbo Welldon Baby Safety Technology Co ltd
Current assignee: Ningbo Welldon Baby Safety Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-10-16
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a safety seat and an angle limiting mechanism thereof, which comprises a backrest main body and a seat, wherein the lower end of the backrest main body is rotationally connected with the seat, the rear end of the seat is provided with a U-shaped flange which extends upwards and has a forward opening, the lower end of the backrest main body, which is close to one side of the central position of the seat, is abutted against the top of the U-shaped flange and is used for carrying out interference limiting on the forward inclination angle of the backrest; and a limiting component used for limiting the back tilting angle is also arranged between the back main body and the seat and used for limiting the angle of the back of the child safety seat. The utility model discloses a safety seat and angle stop gear thereof, it is spacing that the anteversion angle passes through the contact interference, and the hypsokinesis angle is spacing through spacing subassembly, and stop gear is simple, and processing is convenient, and is with low costs.

Description

Safety seat and angle limiting mechanism thereof

Technical Field

The utility model belongs to the technical field of the safety seat technique and specifically relates to a safety seat and angle stop gear thereof.

Background

The automobile is provided with various safety facilities such as a vehicle-mounted safety belt and an air bag, but the safety facilities cannot protect children due to the height of the children, and even can injure the children in an accident. Therefore, when a child goes out by taking the automobile, the child needs to use the safety seat of the child. Children over 4 years old have become available without the use of a five-point safety belt because their height and size have changed significantly from infants. The safety seats used by children at this stage are of two types, one is a booster type safety seat and the other is a safety booster cushion. The safety heightening pad and the heightening type safety seat can ensure that children normally use the vehicle-mounted safety belt in the vehicle, and can effectively avoid the injury to the children caused by overturning and collision when collision occurs. The heightening type safety seat has the advantages that besides the function of the heightening pad, one layer of side wing protection is added, but the heightening pad is lighter and more flexible, and can be used as entry-level safety equipment for temporary trips or short-distance city trips.

Wherein, the rear part of the heightening type safety seat is also provided with a small backrest mechanism to improve the comfort of children. Among the current type of increasing safety seat structure, in order to make little back can accomodate on the seat, save space, adopt between corresponding little back and the seat base to rotate the connection form, but adopt to rotate after connecting, will have turned angle's spacing problem, the angle to little back among the prior art is injectd and is not obtained fine solution always, perhaps the structure of injecing is comparatively complicated, the processing degree of difficulty is big, cost-push.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a technical problem that will solve is: the defect of the prior art is overcome, and the angle limiting mechanism which is simple in structure and convenient to process, disassemble and assemble is provided.

The utility model discloses another technical problem that will solve is: the angle limiting mechanism is simple in structure and convenient to process.

The utility model adopts the technical proposal that: an angle limiting mechanism is provided, suitable for a child safety seat, defining an angle of a backrest of the child safety seat, comprising: the lower end of the backrest main body is rotatably connected with the seat, the rear end of the seat is provided with a U-shaped flange which extends upwards and has a forward opening, and the lower end of one side of the backrest main body, which is close to the center of the seat, abuts against the top of the U-shaped flange and is used for interference limiting on the forward inclination angle of the backrest; a limiting component used for limiting the back tilting angle is further arranged between the backrest main body and the seat.

Compared with the prior art, the utility model has the following advantage:

in the novel structure, the backrest is rotatably connected with the seat, and the forward inclination angle and the backward inclination angle between the backrest main body and the seat can be easily and conveniently limited; specifically, in this structure, the front rake of back main part leans on through the top counterbalance of back main part lower extreme and the flange on the seat, carries out the interference of mechanical type spacing, adopts corresponding spacing subassembly to prescribe a limit to the hypsokinesis angle of back main part, and limit structure is simple, and processing is convenient, and is with low costs.

As an improvement, the middle part of the U-shaped flange is provided with an installation groove with an opening at the top, the lower end of the backrest main body is provided with an installation bulge, and the installation bulge is in running fit in the installation groove.

And the lower end of the mounting groove is provided with a connecting shaft along the horizontal direction, and the lower end of the mounting protrusion is provided with a clamping groove matched with the connecting shaft. The backrest main body and the seat are rotatably connected in a clamping mode of the clamping groove and the connecting shaft, and the backrest is simple in structure and convenient to disassemble and assemble.

Preferably, the opening direction of the card slot faces to the rear part of the seat. In this structure, set up the opening direction of draw-in groove towards the rear portion, both conveniently clamped, can prevent effectively again that back main part and seat from taking place to break away from in vertical direction, improve the stability of joint.

And the improved structure is characterized in that the mounting groove extends downwards to the lower end face of the seat, one end of the base of the seat, which is close to the mounting groove, is provided with a limiting convex edge, the lower end of the mounting protrusion, which is close to one side of the seat, is provided with a limiting hook, and when the backrest rotates backwards, the limiting convex edge abuts against the limiting hook to form a limiting assembly. This spacing subassembly includes spacing pothook and spacing chimb, simple structure, and it is spacing stable.

In a further improvement, the recline angle of the backrest is less than or equal to 10 °. The back-tilting angle of about 10 degrees is arranged between the backrest and the seat, so that when the backrest is installed on the automobile seat, the backrest can be tightly attached to the automobile seat, and a child can feel comfortable when the child sits on the automobile seat.

And in addition, the connecting shaft is provided with a plurality of grooves along the axial direction. After the groove is formed in the connecting shaft, the friction coefficient of the clamping groove and the connecting shaft after clamping can be increased, the clamping stability is improved, and slipping is not prone to occurring.

Correspondingly, the utility model discloses another technical scheme who takes is: the utility model provides a safety seat, includes back main part and seat, the lower extreme of back main part rotates with the seat to be connected, still includes foretell angle stop gear.

Drawings

Fig. 1 is a structural view of a safety seat of the present invention.

Fig. 2 is a structural view of the safety seat of the present invention with the backrest removed.

Fig. 3 is a structural view of a backrest according to one embodiment of the present invention.

Fig. 4 is another angle structure view of the backrest according to one embodiment of the present invention.

Fig. 5 is an exploded view of the backrest of one embodiment of the present invention.

Fig. 6 is a structural view of a backrest of another embodiment of the present invention.

Fig. 7 is another angle structure view of the backrest according to another embodiment of the present invention.

Fig. 8 is another angle structure view of the drawing.

Wherein, 100-backrest main body, 101-seat, 102-U-shaped flange, 102.1-mounting groove, 103-mounting protrusion, 103.1-clamping groove, 104-connecting shaft, 104.1-groove, 105-limiting flange, 106-limiting clamping hook;

1-inner shell, 2-outer shell, 3-connecting piece.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

In the description of the present invention, it should be noted that the terms "lower end", "rear end", "upward", "forward", "central position", "middle part", "top part", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the present invention provides a safety seat, which comprises a seat 101 and a backrest rotatably disposed at the rear portion of the seat 101, wherein an angle between the backrest and the seat 101 can be defined by positioning.

Specifically, the angle stop gear of this back includes:

the backrest comprises a backrest main body 100, the rear end of a seat 101 is provided with a U-shaped flange 102 which extends upwards and has a forward opening, the lower end of the backrest main body 100 abuts against the top of one side of the U-shaped flange 102 close to the center of the seat 101 and is used for performing interference limiting on the forward inclination angle of the backrest main body 100; a limiting assembly for limiting the back recline angle is further provided between the back main body 100 and the seat 101. Specifically, the middle of the U-shaped rib 102 is provided with a mounting groove 102.1 with an open top, the lower end of the backrest main body 100 is provided with a mounting protrusion 103, and the mounting protrusion 103 is rotatably fitted in the mounting groove 102.1.

A connecting shaft 104 is arranged at the lower end of the mounting groove 102.1 along the horizontal direction, and the lower end of the mounting protrusion 103 is recessed towards one side to form a clamping groove 103.1, namely, the structure of the clamping groove 103.1 is integrally formed with the mounting protrusion 103, and the clamping groove 103.1 is matched with the connecting shaft 104. In the structure, the connecting shaft is of a 104-bit cylindrical structure, the clamping groove 103.1 is of an arc-shaped structure, and the arc-shaped part is larger than a half circle, so that the contact area after clamping is effectively ensured, and the structural stability is improved.

In this embodiment, the opening direction of the card slot 103.1 is preferably towards the rear of the seat 101. After the arrangement, after the clamping groove 103.1 on the mounting protrusion 103 is clamped on the connecting shaft 104, the phenomenon of separation in the vertical direction can not occur, and the backrest can not be separated from the seat 101 when being subjected to upward pulling force.

As shown in fig. 8, the mounting groove 102.1 extends downward to the lower end surface of the seat 101, a limiting convex edge 105 is disposed at one end of the base of the seat 101 close to the mounting groove 102.1, a limiting hook 106 is disposed at the lower end of the mounting protrusion 103 close to one side of the seat 101, and specifically, the direction of the limiting hook 106 is opposite to the opening direction of the slot 103.1; when the backrest rotates backwards, the limit convex edge 105 abuts against the limit hook 106 to form a limit component, so as to limit the backward tilting angle of the backrest. Specifically, the reclining angle of the backrest is 10 ° or less.

In addition, in order to make the structure more stable after the clamping groove 103.1 is clamped with the connecting shaft 104 and not easy to loosen, a plurality of grooves 104.1 are axially arranged on the connecting shaft 104.

As shown in fig. 3, 4, and 5, as one embodiment, the backrest main body 100 is manufactured by injection molding, specifically, in this manufacturing structure, the backrest main body 101 includes an inner shell 1, an outer shell 22, and a connecting member 3, the inner shell 1 and the outer shell 2 are separately injection molded and then mounted together, a receiving cavity is provided therebetween, an upper end of the connecting member 3 is connected in the receiving cavity, a lower end of the connecting member 3 protrudes out of a lower end of the backrest main body 100 to form a mounting protrusion 103, and correspondingly, a lower end of the connecting member 3 is bent toward one side to form an arc-shaped groove, that is, a slot 103.1 structure. In this structure, the lower end of the connecting member 3 is connected with the connecting shaft 104 of the seat 101 in a clamping manner, and the upper end of the connecting member 3 can slide and be locked in the accommodating cavity along the vertical direction, that is, the height of the backrest main body 100 can be adjusted.

As shown in fig. 6 and 7, as another embodiment, in this embodiment, the backrest main body 100 is manufactured by blow molding, that is, a mounting protrusion 103 is integrally formed in the middle of the lower end of the backrest main body 100, and a circular arc-shaped slot 103.1 is formed by bending the lower end of the mounting protrusion 103 toward one end.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. An angle limiting mechanism for a child safety seat for limiting the angle of a back of the child safety seat, comprising: the backrest comprises a backrest main body (100) and a seat (101), wherein the lower end of the backrest main body (100) is rotatably connected with the seat (101), a U-shaped flange (102) which extends upwards and has a forward opening is arranged at the rear end of the seat (101), and the lower end of one side, close to the center of the seat (101), of the backrest main body (100) abuts against the top of the U-shaped flange (102) and is used for interference limiting of the forward inclination angle of the backrest; a limiting component used for limiting the back tilting angle is arranged between the backrest main body (100) and the seat (101).

2. The angle limiting mechanism of claim 1, wherein: the middle part of the U-shaped flange (102) is provided with an installation groove (102.1) with an opening at the top, the lower end of the backrest main body (100) is provided with an installation bulge (103), and the installation bulge (103) is rotatably matched in the installation groove (102.1).

3. The angle limiting mechanism of claim 2, wherein: the lower end of the mounting groove (102.1) is provided with a connecting shaft (104) along the horizontal direction, and the lower end of the mounting protrusion (103) is provided with a clamping groove (103.1) matched with the connecting shaft (104).

4. The angle limiting mechanism of claim 3, wherein: the opening direction of the clamping groove (103.1) faces the rear part of the seat (101).

5. The angle limiting mechanism of claim 4, wherein: mounting groove (102.1) down extend to the lower terminal surface of seat (101), the one end that is close to mounting groove (102.1) on the base of seat (101) is equipped with spacing chimb (105), the lower extreme that installation arch (103) are close to seat (101) one side is equipped with spacing pothook (106), when the back rotated backward, spacing chimb (105) and spacing pothook (106) counterbalance lean on in order to form spacing subassembly.

6. The angle limiting mechanism of claim 5, wherein: the back-tilting angle of the backrest is less than or equal to 10 degrees.

7. The angle limiting mechanism of claim 4, wherein: the connecting shaft (104) is provided with a plurality of grooves (104.1) along the axial direction.

8. A safety seat comprising a backrest main body (100) and a seat (101), wherein a lower end of the backrest main body (100) is rotatably connected to the seat (101), characterized in that: further comprising an angle limiting mechanism as claimed in any one of claims 1 to 7.