CN219134283U - Seat folding mechanism of children's barrow - Google Patents

Abstract

The utility model relates to a seat folding mechanism of a children handcart, which comprises a front foot connecting piece, wherein a front rotating groove is arranged on the front foot connecting piece and is connected with a front bracket; the front support column is fixed on the front foot connecting piece or the front bracket; the rear foot connecting piece is provided with a rear rotating groove and is connected with the rear bracket; the rear support column is fixed on the rear foot connecting piece or the rear bracket; the joint seat is rotationally connected with the rear foot connecting piece and is connected with the push handle; the bearing shaft is movably inserted into the front rotary groove and the rear rotary groove; the bearing piece is fixed on the bearing shaft, and a front supporting groove, a front folding groove, a rear supporting groove and a rear folding groove are respectively arranged on two sides of the bearing piece; when the front support column is unfolded, the front support column is clamped in the front support groove, and the rear support column is clamped in the rear support groove; when the rear folding device is turned back and folded, the rear supporting column is clamped in the rear folding groove; when the front is turned over and retracted, the front support column is clamped in the front folding groove. The seat folding mechanism has the advantages of good stability, simple structure, lower cost, small volume after folding and convenient carrying.

Description

Seat folding mechanism of children's barrow

Technical Field

The utility model relates to a child stroller, in particular to a seat folding mechanism of the child stroller.

Background

For the convenience of carrying, the child stroller adopts a folding structure, and the seat of the existing child stroller is directly fixed on the central joint and is not connected with the front foot and the rear foot, such as the sliding folding seat structure of the child stroller disclosed in Chinese patent CN111591338A, and the stability of the frame is poor and the structure is complex.

Disclosure of Invention

In order to solve the problems, the utility model provides a seat folding mechanism of a child stroller, which is convenient to operate, simple in structure and small in volume after folding, and the seat folding mechanism comprises the following specific technical scheme:

a seat fold mechanism for a child stroller comprising: the front foot connecting piece is provided with a front rotating groove and is connected with the front bracket; the front support column is fixed on the front foot connecting piece or the front bracket; the rear foot connecting piece is provided with a rear rotating groove and is connected with the rear bracket; the rear support column is fixed on the rear foot connecting piece or the rear bracket; the joint seat is rotationally connected with the rear foot connecting piece and is connected with the push handle; the bearing shaft is movably inserted into the front rotary groove and the rear rotary groove; the bearing piece is fixed on the bearing shaft, and a front supporting groove, a front folding groove, a rear supporting groove and a rear folding groove are respectively formed in two sides of the bearing piece; when the front support column is unfolded, the front support column is clamped in the front support groove, and the rear support column is clamped in the rear support groove; when the rear support column is turned back and folded, the rear support column is clamped in the rear folding groove; when the front folding device is turned over and retracted, the front support column is clamped in the front folding groove.

Preferably, the two sides of the bearing piece are respectively provided with a front supporting rod and a rear supporting rod, the front supporting groove is arranged at the end part of the front supporting rod, and the front folding groove is arranged at the bottom of the front supporting rod; the rear supporting groove is formed in the end portion of the rear supporting rod, and the rear folding groove is formed in the bottom of the rear supporting rod.

Preferably, a limiting ring is arranged at the end part of the bearing shaft, and the limiting ring is movably clamped on the rear rotary groove.

Further, the rotary shaft assembly further comprises a limiting groove, wherein the limiting groove is arranged on the rear rotary groove, and the limiting ring is movably inserted into the limiting groove.

Preferably, the method further comprises: the front roller is rotatably arranged on the front support column; and the rear roller is rotatably arranged on the rear supporting column.

Preferably, the front foot connecting piece is provided with a rotating groove, the rear foot connecting piece is provided with a rotating round table, and the rotating round table is rotatably arranged on the rotating groove.

Compared with the prior art, the utility model has the following beneficial effects:

the seat folding mechanism of the child stroller provided by the utility model supports the seat through the bearing piece, the front support column and the rear support column, has the advantages of good stability, simple structure, lower cost, small volume after folding, convenience for a user to carry out, small package volume, capability of reducing the transportation cost, capability of being folded forwards and backwards, convenience in operation and suitability for folding the child stroller.

Drawings

FIG. 1 is a schematic view of a seat folding mechanism of a child stroller;

FIG. 2 is a front view of a seat fold mechanism of the child stroller;

FIG. 3 is a schematic view of a child stroller with a hidden seat of a folding mechanism;

FIG. 4 is a cross-sectional view of a seat fold mechanism of the child stroller;

FIG. 5 is a schematic view of the structure of the support;

FIG. 6 is a schematic view of the structure of the forefoot connection member;

FIG. 7 is a schematic view of the structure of the rear foot link;

FIG. 8 is a schematic view of the vehicle frame mounted and in an expanded state;

FIG. 9 is a schematic view of an exploded construction of the support;

FIG. 10 is a schematic view of the structure of the rear dump truck;

FIG. 11 is a schematic view of the structure of the front dump truck;

FIG. 12 is a schematic diagram when deployed;

fig. 13 is a schematic diagram when folded.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings.

As shown in fig. 1 to 13, a seat folding mechanism of a stroller includes a front leg link 2, a front support column 51, a rear leg link 3, a rear support column 61, a joint seat 4, a support shaft 7, and a support member 1.

The front foot connecting piece 2 is provided with a rotating shaft 23, a rotating groove 22 and a front rotating groove 21, wherein the rotating shaft 23 is arranged at the center of the front foot connecting piece 2, the rotating groove 22 is a circular groove, the front rotating groove 21 is an arc groove, the front rotating groove 21, the rotating groove 22 and the rotating shaft 23 are concentrically arranged, and the front foot connecting piece 2 is connected with the front bracket 81. The front bracket 81 is used for mounting two front wheels. The front support column 51 is fixed to the forefoot connection member 2 and rotatably fitted with a front roller 52.

The rear foot connecting piece 3 is provided with a rear rotating groove 31 and a rotating round table 33, the rear rotating groove 31 is an arc-shaped groove, the end part of the rear rotating groove 31 is provided with an arc-shaped limit groove 32, the rotating round table 33 is rotatably arranged on the rotating groove 22, the front foot connecting piece 2 is rotatably connected with the rear foot connecting piece 3, and the front rotating groove 21 is arranged opposite to the rear rotating groove 31. The rear foot link 3 is connected to a rear bracket 82, the rear bracket 82 being used for mounting two rear wheels. The rear support column 61 is fixed to the rear foot link 3 and rotatably fitted with a rear roller 62.

The joint seat 4 is rotatably mounted on the rotation shaft 23, and the front foot link 2, the rear foot link 3 and the joint seat 4 are sequentially provided and rotatable with each other. The joint seat 4 is connected with the push handle 83.

One end of the bearing shaft 7 is provided with a limiting ring 71, the other end is provided with a locknut 72, the bearing shaft 7 is movably inserted into the front rotary groove 21 and the rear rotary groove 31, the front rotary groove 21 and the rear rotary groove 31 are respectively positioned on two sides of the bearing shaft 7, and the limiting ring 71 is movably inserted into the limiting groove 32.

The two sides of the bearing piece 1 are respectively provided with a front supporting rod 12, a front supporting groove 14, a front folding groove 16, a rear supporting rod 13, a rear supporting groove 15 and a rear folding groove 17; a front support groove 14 is provided at an end of the front support bar 12, and a front folding groove 16 is provided at a bottom of the front support bar 12; a rear support groove 15 is provided at an end of the rear support bar 13, and a rear folding groove 17 is provided at a bottom of the rear support bar 13. The supporting member 1 is also provided with a nut groove 18, and a locknut 72 is positioned in the nut groove 18 and connected with the supporting shaft 7.

When unfolded, the front support column 51 is clamped in the front support groove 14, and the rear support column 61 is clamped in the rear support groove 15; when the rear folding device is turned backwards, the rear supporting column 61 is clamped in the rear folding groove 17; when the front folding device is folded forward, the front support column 51 is caught in the front folding groove 16.

The front support column 51 and the rear support column 61 realize the support of the bearing member 1, and especially when being unfolded, the front support column and the rear support column are matched with the bearing shaft 7 to realize three-point support, so that the overall stability and reliability are effectively improved. The front support column 51 and the rear support column 61 can realize folding locking during folding, the folding device is very convenient to use, and the front roller 52 and the rear roller 62 reduce friction force during unfolding and folding, so that the folding is smoother.

As shown in fig. 12, when the frame is unfolded, the cylindrical surface of the bearing shaft 7 is fixed at the junction of the arc waist-round groove of the front foot connecting piece 2 and the rear foot connecting piece 3, and cannot slide.

As shown in fig. 13, when the frame is folded, the front foot connecting piece 2 is engaged with the arc waist-round groove of the rear foot connecting piece 3, and the bearing shaft 7 can slide freely in the arc waist-round groove, so as to drive the bearing piece 1 to slide in a turnover way.

As shown in fig. 10, when the frame is folded, the support 1 is turned over and slid in the rearfoot direction due to the center of gravity of the seat being located at the rear side when the seat is mounted on the support 1 in the forward direction.

As shown in fig. 11, when the seat is reversely mounted on the support member 1, the support member 1 is turned and slid in the forward foot direction due to the rear side of the center of gravity of the seat.

As shown in fig. 8, in the frame unfolding process, the sliding space of the bearing shaft 7 in the arc-shaped waist circular groove of the joint of the front foot connecting piece 2 and the rear foot connecting piece 3 is gradually reduced, and the front supporting rods 12 and the rear supporting rods 13 on two sides below the bearing piece 1 are gradually returned to the unfolding state under the guidance of the front roller 52 and the rear roller 62.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of the specification and practice of the utility model without the need for inventive faculty, and are within the scope of the claims.

Claims (6)

1. A seat fold mechanism for a child stroller, comprising:

a front foot connecting piece (2), wherein a front rotating groove (21) is formed in the front foot connecting piece (2), and the front foot connecting piece (2) is connected with a front bracket (81);

a front support column (51), the front support column (51) being fixed on the front foot link (2) or front bracket (81);

the rear foot connecting piece (3), a rear rotating groove (31) is formed in the rear foot connecting piece (3), and the rear foot connecting piece (3) is connected with the rear bracket (82);

a rear support column (61), the rear support column (61) being fixed on the rear foot link (3) or rear bracket (82);

the joint seat (4) is rotationally connected with the rear foot connecting piece (3), and the joint seat (4) is connected with the push handle (83);

the bearing shaft (7) is movably inserted into the front rotary groove (21) and the rear rotary groove (31); a kind of electronic device with high-pressure air-conditioning system

The bearing piece (1), the bearing piece (1) is fixed on the bearing shaft (7), and a front supporting groove (14), a front folding groove (16), a rear supporting groove (15) and a rear folding groove (17) are respectively arranged on two sides of the bearing piece (1);

when the front support column (51) is unfolded, the front support column (51) is clamped in the front support groove (14), and the rear support column (61) is clamped in the rear support groove (15);

when the rear folding device is turned backwards and retracted, the rear supporting column (61) is clamped in the rear folding groove (17);

when the front folding device is turned over and folded, the front support column (51) is clamped in the front folding groove (16).

2. The seat folding mechanism of the stroller according to claim 1, wherein a front support bar (12) and a rear support bar (13) are respectively arranged at two sides of the bearing member (1), the front support groove (14) is arranged at the end part of the front support bar (12), and the front folding groove (16) is arranged at the bottom of the front support bar (12);

the rear support groove (15) is formed in the end portion of the rear support rod (13), and the rear folding groove (17) is formed in the bottom of the rear support rod (13).

3. The seat folding mechanism of the child stroller according to claim 1, characterized in that a limit ring (71) is arranged at the end of the bearing shaft (7), and the limit ring (71) is movably clamped on the rear rotary groove (31).

4. A seat folding mechanism of a stroller according to claim 3, further comprising a limit groove (32), wherein the limit groove (32) is provided on the rear rotation groove (31), and the limit ring (71) is movably inserted into the limit groove (32).

5. A child's stroller seat fold mechanism according to any one of claims 1-4, further comprising:

a front roller (52), the front roller (52) being rotatably mounted on the front support column (51); a kind of electronic device with high-pressure air-conditioning system

And a rear roller (62), wherein the rear roller (62) is rotatably mounted on the rear support column (61).

6. The seat folding mechanism of the stroller according to claim 1, wherein the front leg connecting piece (2) is provided with a rotating groove (22), the rear leg connecting piece (3) is provided with a rotating round table (33), and the rotating round table (33) is rotatably installed on the rotating groove (22).

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