Adjustable seat structure of baby carriage

Abstract

The utility model discloses an adjustable seat structure of a baby carriage. The adjustable seat structure comprises a seat frame, a backrest frame, a front linkage pipe and an upper surrounding frame, wherein the backrest frame is pivotally arranged at the rear part of the seat frame; the two sides of the rear end of the upper surrounding frame are installed on the two sides of the middle position of the backrest frame in a pivoted mode, and a switching device used for adjusting the inclination of the backrest frame and the base is arranged between the backrest frame and the base. In the actual design, through the seat structure of the linkage structure, inclination adjustment of the backrest frame can be achieved, meanwhile, the stability of the seat is guaranteed, meanwhile, when the switching device is unlocked, mutual folding between the seat and the backrest frame can be achieved, storage is convenient, and meanwhile, when the switching device is used, the backrest frame is not prone to falling off. Mutual adjustment can be achieved by directly swinging the two parts towards the far positions, and the structure is simple and stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of children's pushchair, especially a kind of adjustable seat structure of children's pushchair. BACKGROUND

[0002] Pushchair is mainly used for the tool car designed for the convenience of children outdoor activities.

[0003] For example, the existing Chinese patent 202420080054.2, the seat is detachable structure, and then the storage and transportation of seat are facilitated, but assembly is needed in actual use, and the user cannot conveniently realize the adjustment of the inclination of backrest in actual use process, thereby improving the sleep comfort of baby. SUMMARY

[0004] The utility model discloses a kind of adjustable seat structure of children's pushchair, to design a seat structure, and then the folding storage of seat is facilitated, while also the inclination angle adjustment of backrest is facilitated, structure is simple and stable.

[0005] To achieve the above object, the utility model provides a kind of adjustable seat structure of children's pushchair, including seat frame, backrest frame pivotally installed in the rear part of seat frame, front linkage pipe and upper frame;

[0006] The upper frame rear end is pivotally installed in the middle position of the both sides of backrest frame,

[0007] The backrest frame and base are provided with switching device for adjusting the inclination thereof.

[0008] In actual design, through the seat structure of linkage structure, the inclination adjustment of backrest frame can be realized, while the stability of seat is guaranteed, and at the same time, when switching device is unlocked, the mutual folding between seat and backrest seat can be realized, thereby storage is facilitated, and when using, the mutual adjustment of both can be realized by swinging directly to the position away from each other, and its structure is simple and stable. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the three-dimensional schematic diagram of the utility model;

[0010] Fig. 2 It is the sectional view of the utility model;

[0011] Fig. 3 It is the adjustment schematic diagram of the utility model;

[0012] Fig. 4 It is the schematic diagram when seat frame is located in pushchair folding.

[0013] In the drawing,

[0014] 1 is a seat frame, 10 is a base, 11 is a rotating seat, 12 is a back frame, 13 is a front linkage pipe, 14 is an upper frame,

[0015] 2 is a switching device, 20 is a smooth surface, 21 is a locking piece, 22 is an adjusting groove, 23 is a locking pin,

[0016] 3 is a top spring,

[0017] 4 is an unlocking wrench,

[0018] 5 is an unlocking rope. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings). If the certain posture changes, the directional indications also change accordingly.

[0021] In addition, if the embodiments of the present application involve descriptions of "first" or "second" and the like, the descriptions of "first" or "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0022] As shown in FIG. 1, a kind of adjustable seat structure of child stroller, including seat frame 1, back frame 12 pivotally installed in the rear part of seat frame 1, front linkage pipe 13 and upper frame 14; Figs. 1 to 4 The upper frame 14 rear end is pivotally installed on both sides of the middle position of back frame 12,

[0023]

[0024] ​The switching device 2 is arranged between the backrest frame 12 and the base 10 for adjusting the inclination thereof.

[0025] In actual design, the seat structure through the linkage structure can realize the inclination adjustment of the backrest frame 12 while ensuring the stability of the seat, and meanwhile, when the switching device 2 is unlocked, the folding of the seat and the backrest frame can be realized, thereby facilitating the storage, and when used, the folding of the seat and the backrest frame can be realized by swinging them directly away from each other, which is simple and stable.

[0026] Specifically, the upper surrounding frame 14 comprises two spaced apart supporting arms, one end of the supporting arm is pivotally connected with the backrest frame 12, and the other end is provided with a transverse rod, thereby effectively improving the covering of the baby, and the arrangement of the front linkage pipe 13 can effectively protect the child and ensure the support and stability of the seat structure.

[0027] In the embodiment of the utility model, the upper surrounding frame 14 is in U shape.

[0028] Specifically, the switching device 2 comprises a locking piece 21 arranged between the seat frame 1 and the backrest frame 12 and a locking pin 23 slidingly installed on the backrest frame 12,

[0029] The locking piece 21 is provided with a plurality of adjusting grooves 22, and the locking pin 23 can move between the position of extending into the adjusting groove 22 and the position of withdrawing from the adjusting groove 22, wherein when the locking pin 23 is at different positions of the adjusting groove 22, the pivoting between the seat frame 1 and the backrest frame 12 can be locked, thereby realizing the adjustment of different inclination angles.

[0030] When the locking pin 23 does not cooperate with the adjusting groove 22, the folding of the backrest frame 12 and the seat frame 1 can be realized.

[0031] In the embodiment of the utility model, the adjusting groove 22 is arranged at the rear position of the upper part of the locking piece 21, and the front position of the upper part of the locking piece 21 is a smooth surface 20, so when the locking pin 23 is located on the smooth surface, the pivoting between the backrest frame 12 and the seat frame 1 is unlocked, thereby realizing the folding of the backrest frame 12 and the seat frame 1.

[0032] Specifically, the backrest frame 12 is provided with a guide hole, and the locking pin 23 is slidingly installed in the guide hole,

[0033] The guide hole and the locking pin 23 are provided with a top spring 3, the top spring 3 is used for exerting elastic force on the locking pin 23 to extend into the adjusting groove 22, thereby realizing the mutual locking of the backrest frame 12 and the seat frame 1.

[0034] In the embodiment of the utility model, the backrest frame 12 is provided with an unlocking wrench 4, the unlocking wrench 4 is pivotally arranged, the unlocking wrench 4 is connected with an unlocking rope 5, the unlocking rope 5 is used for driving the locking pin 23 to move away from the adjusting groove 22, thereby realizing unlocking, and meanwhile, adjustment is facilitated.

[0035] Specifically, the locking pin 23 is provided with two and is respectively located at both sides of the backrest frame 12, two unlocking ropes 5 are correspondingly arranged, the upper ends of the two unlocking ropes 5 are connected with the same unlocking wrench 4, wherein the unlocking wrench 4 can be the structure of a hinged plate, and the hinged plate is provided with a spring to make the unlocking rope 5 downward, thereby making the locking pin 23 and the adjusting groove 22 be in the position of mutual locking.

[0036] In the embodiment of the utility model, the seat frame 1 includes a base 10 and a rotating seat 11 pivotally installed on the base, and the base 10 is provided with a locking device for locking the rotating seat 11.

[0037] Specifically, the front linkage pipe 13 is curved, and in the unfolded state, the upper end of the front linkage pipe 13 is higher than the rear end of the upper surrounding frame 14, which can not only play a protective role, but also form a parallelogram adjustment effect.

[0038] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the utility model concept of the utility model, and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. An adjustable seat structure for a children's stroller, characterized in that, Includes a seat frame, a backrest frame pivotally mounted at the rear of the seat frame, a front linkage tube, and an upper frame; The two sides of the rear end of the upper frame are pivotally mounted on both sides of the middle position of the backrest frame. A switching device for adjusting the tilt of the backrest and the base is provided.

2. The adjustable seat structure of the stroller as described in claim 1, characterized in that: The upper frame includes two spaced-apart support arms, one end of which is pivotally connected to the backrest frame, and the other end is provided with a transverse bar.

3. The adjustable seat structure of the stroller as described in claim 1, characterized in that: The upper frame is U-shaped.

4. The adjustable seat structure of the stroller as described in claim 1, characterized in that: The switching device includes a locking piece disposed between the seat frame and the backrest frame, and a locking pin slidably mounted on the backrest frame. The locking piece is provided with multiple adjustment slots, and the locking pin can move between the position of being inserted into the adjustment slot and the position of being removed from the adjustment slot.

5. The adjustable seat structure of the stroller as described in claim 4, characterized in that: The adjustment groove is located on the rear side of the upper part of the locking piece, and the front side of the upper part of the locking piece is a smooth surface.

6. The adjustable seat structure of the stroller as described in claim 4, characterized in that: The backrest frame is provided with a guide hole, and the locking pin is slidably installed in the guide hole. A top spring is provided between the guide hole and the locking pin, and the top spring is used to apply a spring force to the locking pin to extend into the adjustment groove.

7. The adjustable seat structure of the stroller as described in claim 6, characterized in that: The backrest is equipped with an unlocking wrench, which is pivotally mounted and connected to an unlocking rope. The unlocking rope is used to move the locking pin away from the adjustment groove.

8. The adjustable seat structure of the stroller as described in claim 7, characterized in that: The locking pins are provided in two locations on both sides of the backrest frame, and there are corresponding unlocking ropes. The upper ends of the two unlocking ropes are connected to the same unlocking wrench.

9. The adjustable seat structure of the stroller as described in claim 1, characterized in that: The seat frame includes a base and a rotating seat pivotally mounted on the base, the base being provided with a locking device for locking the rotating seat.

10. The adjustable seat structure of the stroller as described in claim 1, characterized in that: The front linkage tube is curved, and when unfolded, the upper end of the front linkage tube is higher than the rear end of the upper frame.

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