CN219056342U - Child cart - Google Patents

Abstract

The utility model relates to a child stroller, which comprises a frame with an unfolding state and a folding state, wherein the frame comprises side brackets which are positioned at the left side and the right side of the child stroller and are symmetrically arranged, each side bracket comprises a front wheel bracket, a rear wheel bracket, a push rod, a seat rod, a grab rail, a connecting rod, a stay rod, a sliding piece and a transverse bracket, wherein the seat rod extends along the front-back direction of the child stroller, the sliding piece is connected to the seat rod in a sliding manner, and the transverse bracket comprises a first transverse rod and a second transverse rod which is arranged in a crossed rotation manner with the first transverse rod; one end part of the first cross rod and one end part of the second cross rod are respectively connected with seat rods on two sides in a rotating way through first connecting pieces, and the other end part of the first cross rod and the other end part of the second cross rod are respectively connected with the upper parts of rear wheel brackets on two sides or sliding pieces in a rotating way through second connecting pieces. The baby stroller can realize transverse and longitudinal bidirectional folding, is convenient to fold, has small volume after folding, and is convenient to carry.

Description

a stroller for children

technical field

The utility model relates to the field of children's products, in particular to a children's stroller.

Background technique

Folding strollers are widely used as baby walking tools. In order to realize the function of folding, the main components that make up the stroller frame, such as the front wheel bracket, the rear wheel bracket, the seat post, the push rod, etc., are arranged in a mutually rotating and connected manner. Strollers, yet children's strollers with different design structures, convenient folding, and small folding volume are still the goal pursued by those skilled in the art, and are also the key to making stroller products have market competitiveness.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a children's stroller with a different structure and a small volume after folding.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A stroller for children, comprising a vehicle frame with an expanded state and a folded state, a front wheel assembly, a rear wheel assembly and a locking mechanism for locking the vehicle frame in the expanded state, the vehicle frame includes a The side brackets arranged symmetrically on the left and right sides of the car, the side brackets on each side include a front wheel bracket with the front wheel assembly at the bottom, a rear wheel bracket with the rear wheel assembly at the bottom, a push rod and A seat post extending in the front and rear direction of the stroller, the side brackets on each side also include a handrail bar, a connecting rod, a strut and a sliding piece that is slidably connected to the seat post along the length direction of the seat post;

Two of the upper portion of the front wheel bracket, the front portion of the seat post, and the lower portion of the grab bar are pivotally connected and the third is pivotally connected to one of the foregoing two , or the upper part of the front wheel bracket, the front part of the seat post, and the lower part of the armrest bar are rotationally connected around the same rotation center;

Two of the lower portion of the push rod, the upper portion of the connecting rod, and the upper portion of the strut are pivotally connected and the third is pivotally connected to one of the foregoing two, or The lower part of the push rod, the upper part of the connecting rod, and the upper part of the strut are rotationally connected around the same rotation center;

The lower portion of the push rod is also pivotally connected to the upper portion of the armrest bar, the lower portion of the strut is pivotally connected to the rear wheel bracket, and the strut is also pivotally connected to the rear portion of the seat post. the shaft is pivotally connected, and the upper part of the rear wheel support is pivotally connected with the slider;

The vehicle frame also includes a cross bracket arranged between the side brackets on both sides, the cross bracket includes a first cross bar and a second cross bar crossed and rotated with the first cross bar, the first cross bar One end of a crossbar and one end of the second crossbar are rotatably connected to the seatposts on both sides through the first connecting piece, and the other end of the first crossbar and the second crossbar The other end of the second connecting piece is respectively rotatably connected to the upper part of the rear wheel bracket on both sides or the sliding piece.

According to some implementation aspects of the present invention, in the side brackets on each side, the sliding member is located between the connection between the seat post and the front wheel bracket or the handle bar, and the first connecting member ;and / or,

When the stroller is in the unfolded state, the included angle between the rear wheel brackets on both sides is an acute angle.

According to some implementation aspects of the present utility model, the sliding member is a sliding sleeve slidably sleeved on the seat post.

According to some implementation aspects of the present utility model, in the side brackets on each side, the first connecting piece, the seat post, and the support rod are rotatably connected by the same pivot, and the second connecting piece, the The rear wheel bracket and the sliding member are connected through the same pivot;

The first connecting piece on each side is also pivotally connected to the first crossbar or the second crossbar, and the second connecting piece on each side is also connected to the first crossbar or the second crossbar. Two crossbars are pivotally connected.

According to some implementation aspects of the present invention, when the baby stroller is in the unfolded state, the armrest rod and the connecting rod extend obliquely from bottom to top along the front and back directions of the baby stroller, and the struts extend along the The baby stroller extends in the up and down direction.

Further, the handrail rod and the connecting rod are respectively arc-shaped bent rods, the handrail rod is bent downward from its lower end to its upper end, and the connecting rod is bent upward from its lower end to its upper end.

According to some implementation aspects of the present utility model, in the side brackets on each side, the lower part of the strut is rotatably connected to the middle part of the rear wheel bracket.

According to some implementation aspects of the present utility model, in the side brackets on each side, the armrest bar, the front wheel bracket, and the seat post are pivotally connected through the same pivot, and the connecting rod is connected to the front wheel bracket The connection of the handle bar or the seat post is located below the connection of the front wheel bracket.

According to some implementation aspects of the present utility model, in the side brackets on each side, the push rod, the connecting rod and the support rod are connected through the same pivot, and the connection between the handle bar and the push rod The seat post is rotatably connected to the middle part of the support rod.

According to some implementation aspects of the present invention, the vehicle frame further includes one or more telescopic rod assemblies arranged between the side brackets on both sides, and each of the telescopic rod assemblies includes The first telescopic rod extending in the direction and the second telescopic rod slidingly connected with the first telescopic rod along the length direction of the first telescopic rod, one end of the first telescopic rod, the second telescopic rod One end of the first telescopic rod is respectively connected to the side brackets on both sides, and the other end of the first telescopic rod and the other end of the second telescopic rod are slidably connected.

Further, one or more telescopic rod assemblies are arranged between the front wheel brackets on both sides, and one end of the first telescopic rod and one end of the second telescopic rod of each telescopic rod assembly are respectively It is fixedly connected with the described front wheel brackets on both sides.

Further, one or more telescopic rod assemblies are arranged between the rear wheel brackets on both sides, and one end of the first telescopic rod and one end of the second telescopic rod of each telescopic rod assembly are respectively It is fixedly connected with the described rear wheel brackets on both sides.

According to some implementation aspects of the present utility model, in the side brackets on each side, the push rod includes a lower push rod, an upper push rod whose lower part is pivotally connected to the upper part of the lower push rod, and one end connected to the The upper part of the upper push rod is pivotally connected to the push handle bar, the upper part of the armrest rod, the upper part of the connecting rod, and the upper part of the support rod are respectively pivotally connected with the lower part of the lower push rod. The other end of the push handle bar of the side bracket is pivotally connected.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art:

The children's stroller of the utility model can be folded horizontally and vertically, is convenient to fold, has small volume after folding, and is easy to carry.

Description of drawings

Fig. 1 is a perspective view of a children's stroller in an unfolded state according to a representative embodiment of the utility model;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the front view of Fig. 1;

Fig. 4 is a side view of the stroller in Fig. 1 in a half-folded state;

Fig. 5 is a front view of the children's stroller in Fig. 1 in a half-folded state;

Fig. 6 is a side view of the stroller in Fig. 1 in a folded state;

Fig. 7 is a front view of the stroller in Fig. 1 in a folded state;

In the figure: 1, front wheel assembly; 2, rear wheel assembly; 3, front wheel bracket; 4, rear wheel bracket; 5, push rod; 5a, lower push rod; 5b, upper push rod; 5c, push lever; 6. Seat post; 7. Handrail bar; 8. Connecting rod; 9. Strut; 10. Slider; 11. First cross bar; 12. Second cross bar; 13. First connecting piece; 14. Second Connector; 15, the first telescopic rod; 16, the second telescopic rod;

A, the first pivot; B, the second pivot; C, the third pivot; D, the fourth pivot; E, the fifth pivot; F, the sixth pivot; G, the seventh pivot; H , the eighth pivot; I, the ninth pivot; J, the tenth pivot.

Detailed ways

The utility model is further described below in conjunction with the accompanying drawings and specific embodiments of the description:

Referring to the children's stroller shown in FIGS. 1 to 7 , it includes a vehicle frame in an unfolded state and a folded state, a front wheel assembly 1 and a rear wheel assembly 2 .

The vehicle frame includes symmetrically arranged side brackets located on the left and right sides of the stroller. The side brackets on each side include a front wheel bracket 3 with a front wheel assembly 1 at the bottom, a rear wheel bracket 4 with a rear wheel assembly 2 at the bottom, and a push wheel. Rod 5, seat post 6 extending along the front and rear direction of the stroller, handrail rod 7 extending obliquely from bottom to top along the front and rear direction of the stroller, connecting rod 8 extending obliquely from bottom to top along the front and rear direction of the stroller, The strut 9 extending along the up and down direction of the stroller and the sliding member 10 slidably connected to the seat post 6 along the length direction of the seat post 6 .

Specifically, in the side brackets on each side, the armrest rod 7 and the connecting rod 8 are respectively arc-shaped bent rods, the armrest rod 7 is bent downward from its lower end to the upper end, and the connecting rod 8 is upwardly bent from its lower end to the upper end. Bending; push rod 5 comprises lower push rod 5a, the upper push rod 5b that the bottom is pivotally connected with the upper part of lower push rod 5a and the push handle bar 5c that one end is pivotally connected with the upper part of upper push rod 5b. The other end of the push lever 5c of the side bracket is pivotally connected.

Referring to Fig. 2, among the side brackets on each side, the upper part of the front wheel bracket 3, the front part of the seatpost 6, and the lower part of the armrest rod 7 are rotatably connected through the first pivot A; the upper part of the front wheel bracket 3 The bottom of the connecting rod 8 is also pivotally connected through the second pivot B; The lower part of the seat post 6 is also rotatably connected with the upper part of the armrest bar 7 through the fourth pivot D; the rear part of the seat post 6 is rotatably connected with the middle part of the strut 9 through the fifth pivot E; the lower part of the strut 9 is rotatably connected through the sixth pivot F It is rotatably connected with the middle part of the rear wheel bracket 4; the upper part of the rear wheel bracket 4 is rotatably connected with the slider 10 through the seventh pivot G. On the front wheel bracket 3, the second pivot B is located below the first pivot A; on the lower push rod 5a, the third pivot C is located below the fourth pivot D.

When the stroller is in the unfolded state, the first pivot A, the second pivot B, the third pivot C, the fourth pivot D, the fifth pivot E, the sixth pivot F, and the seventh pivot G respectively extend along the left and right directions of the stroller.

As shown in FIG. 3 , when the stroller is unfolded, the angle α between the rear wheel brackets 4 on both sides is an acute angle, and in this example, the angle α is about 12°.

Referring to Fig. 1, the vehicle frame also includes a cross bracket arranged between the side brackets on both sides, the cross bracket includes a first cross bar 11 and a second cross bar 12 which is arranged to cross and rotate with the first cross bar 11, as As shown in Fig. 1 and Fig. 3, the first crossbar 11 and the second crossbar 12 are rotatably connected by the eighth pivot H, and one end of the first crossbar 11 and one end of the second crossbar 12 are respectively connected by the first The member 13 is rotatably connected with the seatposts 6 on both sides, and the other end of the first crossbar 11 and the other end of the second crossbar 12 are rotatably connected with the upper parts of the rear wheel brackets 4 on both sides through the second connecting piece 14 respectively. .

In the side brackets on each side, the first connecting piece 13, the seat post 6 and the strut 9 are rotatably connected through the fifth pivot E, and the first connecting piece 13 is also connected with the first cross bar 11 or the second through the ninth pivot I. The cross bar 12 is rotationally connected, and the fifth pivot E is perpendicular to the ninth pivot I; the second connecting member 14, the sliding member 10, and the rear wheel bracket 4 are rotationally connected through the seventh pivot G, and the second connecting member 14 is also connected through the seventh pivot G. The tenth pivot J is rotatably connected to the first crossbar 11 or the second crossbar 12 , and the seventh pivot G is perpendicular to the tenth pivot J.

In this example, the first connecting piece 13 and the second connecting piece 14 are U-shaped connecting pieces.

In this example, the sliding member 10 is a sliding sleeve that is slidably sleeved on the seat post 6 , and on the seat post 6 , the sliding sleeve is located between the first pivot A and the fifth pivot E.

In order to make the folding operation of the stroller more stable and avoid twisting of the side brackets on both sides when it is folded horizontally, the frame also includes one or more telescopic rod assemblies arranged between the side brackets on both sides. In this example Among them, two telescopic rod assemblies are arranged between the front wheel brackets 3 on both sides, and the two telescopic rod assemblies are respectively located at the upper and lower parts of the front wheel bracket 3, and each telescopic rod assembly includes a The first telescopic rod 15 and the second telescopic rod 16 slidingly connected with the first telescopic rod 15 along the length direction of the first telescopic rod 15, one end of the first telescopic rod 15 and one end of the second telescopic rod 16 are connected with the two respectively. The front wheel bracket 3 on the side is fixedly connected, and the other end of the first telescopic link 15 and the other end of the second telescopic link 16 are slidably connected. A telescopic rod assembly is also arranged between the rear wheel brackets 4 on both sides, and the telescopic rod assembly also includes the first telescopic rod 15 extending along the left and right direction of the stroller and the first telescopic rod 15 along the length direction of the first telescopic rod 15 and the first telescopic rod assembly. The second telescopic link 16 that the telescopic link 15 is slidably connected, one end of the first telescopic link 15 and one end of the second telescopic link 16 are respectively fixedly connected with the rear wheel brackets 4 on both sides, and the other end of the first telescopic link 15 , The other end of the second telescopic rod 16 is slidably connected.

The stroller also includes a locking mechanism for locking the vehicle frame in the unfolded state. The structure of the locking mechanism is not limited, as long as it can lock the stroller in the unfolded state, an existing conventional locking mechanism can be used.

The folding principle of the stroller:

As shown in FIGS. 1 to 3 , the stroller is in an unfolded state, and the sliding member 10 is located at the rear of the seat post 6 . When the stroller needs to be folded, the locking mechanism is unlocked, the upper push rod 5b is turned over to the rear of the stroller and close to the lower push rod 5a, and then the lower push rod 5a and the upper push rod 5b are turned forward together, as Figures 4 to 5, longitudinal direction: the upper end of the armrest bar 7, the upper end of the connecting rod 8 and the upper end of the strut 9 are respectively turned towards the rear wheel bracket 4 and moved closer to the rear wheel bracket 4, and the connecting rod 8 is pulled The front wheel bracket 3 moves closer to the rear wheel bracket 4, while the rear end of the seat post 6 is turned downwards under the movement of the strut 9 to move closer to the rear wheel bracket 4, and the rear wheel bracket 4 drives the slider 10 on the seat post 6 Slide from the rear of the seat post 6 to the front of the seat post 6 to complete the longitudinal folding; During the sliding process in the front direction of 6, one end of the first cross bar 11 and one end of the second cross bar 12 are driven to move forward, so that the first cross bar 11 and the second cross bar 12 move closer to each other, while the first telescopic The rod 15 and the second telescopic rod 16 are telescopically slid and folded, and the push handle rods 5c of each side bracket are folded close together to finally complete the horizontal folding. After the stroller is folded vertically and horizontally, as shown in Figures 6-7, the front wheel bracket 3, the rear wheel bracket 4, the lower push rod 5a, the upper push rod 5b, the seat post 6, the armrest rod 7, the connecting rod 8 and the brace The rods 9 are close to each other, and in the left and right direction of the stroller, the armrest rod 7, the lower push rod 5a (or the front wheel bracket 3), the connecting rod 8, the strut 9, the seat post 6 and the rear of the side bracket on each side The wheel brackets 4 are distributed sequentially, and the armrest bars 7 of the side brackets on both sides are respectively located on the outside, the first cross bar 11 and the second cross bar 12 are folded and close together, and are positioned between the rear wheel brackets 4 on both sides, and the push rods on both sides The rod 5c is folded close and is located between the lower push rods 5a on both sides, the whole vehicle is small in size and easy to carry.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model, and its purpose is to allow those familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model. Equivalent changes or modifications made according to the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims (10)

1. The utility model provides a children's shallow, includes the frame that has the state of expanding and folding state, front wheel subassembly, rear wheel subassembly and is used for locking the frame in the state of expanding, the frame includes the side support that is located the left and right sides of children's shallow and symmetry set up, the side support of each side includes the front wheel support that the lower part is equipped with the front wheel subassembly, the rear wheel support that the lower part is equipped with the rear wheel subassembly, push rod and along the seat pole that the fore-and-aft direction of children's shallow extends, characterized in that, the side support of each side still includes grab rail, connecting rod, vaulting pole and along the slider of the length direction sliding connection on the seat pole of seat pole;

two of the upper part of the front wheel bracket, the front part of the seat rod and the lower part of the grab bar are pivotally connected and a third person is pivotally connected to one of the two, or the upper part of the front wheel bracket, the front part of the seat rod and the lower part of the grab bar are pivotally connected around the same rotation center;

two of the lower part of the push rod, the upper part of the connecting rod and the upper part of the supporting rod are connected in a pivot way, and a third is connected on one of the two in a pivot way, or the lower part of the push rod, the upper part of the connecting rod and the upper part of the supporting rod are connected in a pivot way around the same rotation center;

the lower part of the push rod is also in pivot connection with the upper part of the grab bar, the lower part of the support rod is in pivot connection with the rear wheel bracket, the support rod is also in pivot connection with the rear part of the seat rod, and the upper part of the rear wheel bracket is in pivot connection with the sliding piece;

the frame also comprises a transverse bracket arranged between the side brackets at two sides, the transverse bracket comprises a first transverse rod and a second transverse rod which is arranged by intersecting and rotating the first transverse rod, one end part of the first transverse rod is respectively connected with the seat rods at two sides through a first connecting piece in a rotating way, and the other end part of the first transverse rod is respectively connected with the upper parts of the rear wheel brackets at two sides or the sliding pieces in a rotating way through a second connecting piece.

2. The stroller of claim 1, wherein: in the side brackets on each side, the sliding piece is positioned between the first connecting piece and the connecting part of the seat rod and the front wheel bracket or the armrest rod; and/or the number of the groups of groups,

and when the child stroller is in the unfolded state, the included angle between the rear wheel brackets at the two sides is an acute angle.

3. A stroller according to claim 1 or 2, wherein: the sliding piece is a sliding sleeve which is sleeved on the seat rod in a sliding way.

4. The stroller of claim 1, wherein: in the side brackets on each side, the first connecting piece, the seat rod and the supporting rod are connected through the same pivot, and the second connecting piece, the rear wheel bracket and the sliding piece are connected through the same pivot;

the first link on each side is also pivotally connected to the first rail or the second rail, and the second link on each side is also pivotally connected to the first rail or the second rail.

5. The stroller of claim 1, wherein: when the child stroller is in the unfolded state, the grab bars and the connecting rods respectively extend obliquely from bottom to top along the front-back direction of the child stroller, and the supporting rods extend along the up-down direction of the child stroller.

6. The stroller of claim 5, wherein: the grab rail and the connecting rod are arc-shaped bent rods respectively, the grab rail is bent downwards from the lower end to the upper end, and the connecting rod is bent upwards from the lower end to the upper end.

7. The stroller of claim 1, wherein: in the side brackets on each side, the lower parts of the supporting rods are rotatably connected with the middle parts of the rear wheel brackets; and/or the number of the groups of groups,

in the side brackets on each side, the grab rail, the front wheel bracket and the seat bar are connected through the same pivot, and the connection part of the connecting rod and the front wheel bracket is positioned below the connection part of the grab rail or the seat bar and the front wheel bracket; and/or the number of the groups of groups,

in the side brackets of each side, the push rod, the connecting rod and the supporting rod are connected through the same pivot, the connection part of the grab bar and the push rod is positioned above the connection part of the connecting rod or the supporting rod and the push rod, and the seat rod is connected in a rotating way at the middle part of the supporting rod.

8. The stroller of any one of claims 1-2, 4-7, wherein: the frame is characterized by further comprising one or more telescopic rod assemblies arranged between the side brackets on two sides, each telescopic rod assembly comprises a first telescopic rod and a second telescopic rod, the first telescopic rod is arranged along the left-right direction of the stroller in an extending mode, the second telescopic rod is connected with the first telescopic rod in a sliding mode along the length direction of the first telescopic rod, one end portion of the first telescopic rod and one end portion of the second telescopic rod are connected with the side brackets on two sides respectively, and the other end portion of the first telescopic rod and the other end portion of the second telescopic rod are connected in a sliding mode.

9. The stroller of claim 8, wherein: one or more telescopic rod assemblies are arranged between the front wheel brackets at two sides, and one end part of the first telescopic rod and one end part of the second telescopic rod of each telescopic rod assembly are fixedly connected with the front wheel brackets at two sides respectively; and/or the number of the groups of groups,

one or more telescopic rod assemblies are arranged between the rear wheel brackets at two sides, and one end part of the first telescopic rod and one end part of the second telescopic rod of each telescopic rod assembly are fixedly connected with the rear wheel brackets at two sides respectively.

10. The stroller of any one of claims 1-2, 4-7, wherein: in the side brackets on each side, the push rod comprises a lower push rod, an upper push rod, and a push handle rod, wherein the lower part of the upper push rod is in pivot connection with the upper part of the lower push rod, one end of the push handle rod is in pivot connection with the upper part of the upper push rod, the upper part of the handle rod, the upper part of the connecting rod and the upper part of the supporting rod are respectively in pivot connection with the lower part of the lower push rod, and the other ends of the push handle rods on the two sides of the side brackets are in pivot connection.

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