CN218558938U - Children's barrow - Google Patents

Abstract

The utility model discloses a children handcart, which comprises a front foot component, a rear foot component, a push handle component and a linkage component, wherein the top of the rear foot component is hinged with the top of the front foot component; the push handle assembly comprises an upper push rod, a lower push rod and a rear side rod, wherein the upper push rod and the lower push rod are hinged with each other, the rear side rod is hinged with the bottom of the upper push rod, and the bottoms of the lower push rod and the rear side rod are respectively hinged with the top and the middle of the rear foot assembly; the linkage assembly comprises a two-fold rod arranged between the front foot assembly and the rear foot assembly and a lifting rod with two ends hinged with the two-fold rod and the rear side rod. The lower push rod is only hinged with the upper push rod and the rear side rod at two ends, and other rod pieces are not arranged, so that a scissor structure does not exist in the folding process of the upper part of the seat assembly, the possibility of clamping children is avoided, and the safety is improved.

Description

Children's barrow

Technical Field

The utility model relates to a technical field of perambulator specifically is a higher children's handcart of security.

Background

The children's handcart is used for carrying the child in the open air and carries out, and in order to conveniently accomodate and transport, current children's handcart can be folded.

For example, chinese patent publication No. CN 206155522U discloses a stroller with a folding mechanism in which one end of a driving member is hinged to a front support rod, i.e., a portion of the driving member is located above a seat in an unfolded state, so that the driving member and one or more of the front support rod and the rear support rod form a scissors structure during folding, thereby causing a safety hazard of pinching a child.

SUMMERY OF THE UTILITY MODEL

The application provides a children's handcart, security when improving folding.

The application provides a children's handcart includes:

a forefoot assembly;

a rear foot assembly, the top of which is hinged with the top of the front foot assembly;

the push handle assembly comprises an upper push rod, a lower push rod and a rear side rod, wherein the upper push rod and the lower push rod are hinged with each other, the rear side rod is hinged with the bottom of the upper push rod, and the bottoms of the lower push rod and the rear side rod are respectively hinged with the top and the middle of the rear foot assembly;

the linkage assembly comprises a two-fold rod arranged between the front foot assembly and the rear foot assembly and a lifting rod with two ends hinged with the two-fold rod and the rear side rod.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative may be combined individually for the above general solution or between several alternatives without technical or logical contradictions.

Optionally, the two-fold rod includes a first connecting rod and a second connecting rod hinged to the front leg assembly and the rear leg assembly, respectively, and the lifting rod is hinged to the second connecting rod;

when the folding bicycle is folded, the lower push rod and the rear side rod rotate to be close to the rear foot assembly, and the two folding rods are pulled to be folded in half, so that the front foot assembly rotates to be close to the rear foot assembly.

Optionally, a dead point exists between the first link and the second link during the unfolding or folding process.

Optionally, a seat assembly is included that is hinged to the front foot assembly, the hinge point of the lifting bar and the rear side bar being lower than the seat assembly.

Optionally, the rear side rod partially passes over the rear foot assembly, and is divided into a main body section and an extension section by the rear foot assembly, and the extension section is hinged with the lifting rod.

Optionally, the length ratio of the main body section to the extension section is 6-7: 1.

optionally, a seat assembly is hinged with the front foot assembly, and the rear end of the seat assembly is hinged with the rear side rod and/or the lifting rod through a linkage rod.

Optionally, the front foot assembly comprises two front wheels and the rear foot assembly comprises two rear wheels, wherein the track of the two front wheels is smaller than the track of the two rear wheels.

Optionally, a torsion spring for driving the folding of the stroller is arranged at the hinged position of the rear side rod and the upper push rod.

Optionally, a front portion of the seat assembly is hinged to a leg rest assembly.

The utility model provides a children's handcart, push rod and back side lever are only articulated respectively at both ends to the push rod down, do not have other member, have realized that the part does not exist at folding in-process and cut the fork structure above the seat subassembly, have avoided pressing from both sides the possibility of hindering the child, improve the security.

Drawings

FIG. 1 is a structural view of a child stroller in an expanded state according to an embodiment of the present application;

FIG. 2 is a structural view of the stroller of FIG. 1 during folding;

FIG. 3 is a schematic view of the stroller of FIG. 2 during further folding;

FIG. 4 is a structural view of the child stroller of FIG. 1 in a collapsed position;

FIG. 5 is a front view of the stroller of FIG. 1 in a deployed position;

FIG. 6 is a front view of the child stroller of FIG. 2;

fig. 7 is a front view of the child stroller of fig. 3.

The reference numerals in the figures are illustrated as follows:

100. a forefoot assembly; 110. a front wheel;

200. a back foot assembly; 210. a rear wheel;

300. a push handle assembly; 310. an upper push rod; 320. a lower push rod; 330. a back side rod; 331. a main body section; 332. An extension section; 340. a torsion spring;

400. a linkage assembly; 410. two folding rods; 411. a first link; 412. a second link; 420. lifting a pull rod;

500. a seat assembly; 510. a leg rest assembly; 520. a linkage rod.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In this application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number, order of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In order to realize folding linkage, the existing child stroller does not consider too much the possibility of clamping a child due to the fact that a scissor structure is formed between rod pieces when the child stroller is folded, particularly when the child stroller is folded accidentally, and the possibility is particularly limited to the position above a seat, namely the moving range of hands of the child. The applicant has identified this problem and has provided the following embodiments of a child buggy.

Referring to fig. 1 to 7, the present application provides a stroller having an unfolded state and a folded state, comprising a front leg assembly 100, a rear leg assembly 200, a handle assembly 300 and a linkage assembly 400, wherein the top of the front leg assembly 100 and the top of the rear leg assembly 200 are hinged to each other; the handle assembly 300 is used for holding and moving and comprises an upper push rod 310 and a lower push rod 320 which are hinged with each other, and a rear side rod 330 which is hinged with the bottom of the upper push rod, and the bottoms of the lower push rod 320 and the rear side rod 330 are hinged with the top and the middle of the rear foot assembly 200 respectively. The linkage assembly 400 mainly achieves linkage folding among the front foot assembly 100, the rear foot assembly 200 and the push handle assembly 300 in the unfolding or folding process, and comprises a two-fold rod 410 arranged between the front foot assembly 100 and the rear foot assembly 200 and a lifting rod 420 with two ends hinged with the two-fold rod 410 and the rear side rod 330. Of course, the stroller of the present application will also generally include a seat for seating a child, which may be removably attached to the push handle assembly 300 or to the front and rear foot assemblies 100 and 200 at the hinged position, or in any other manner. There is a corresponding lowest point, shown with an imaginary line passing through the lowest point of the seat.

The specific folding process is that the pushing handle assembly 300 rotates and closes relative to the rear foot assembly 200, and the rear side rod 330 pulls or pushes the lifting rod 420 to drive the two folding rods 410 to fold in half, so that the front foot assembly 100 rotates and closes to the rear foot assembly 200. The linkage assembly 400 is below the dashed line.

In the child stroller, all or part of other rod pieces except the push handle assembly are not located above the dotted line above the seat assembly (namely above the dotted line), especially no assembly or rod piece is connected with the lower push rod (except for the front frame assembly and the rear foot assembly), or the scissor fork structure can be understood to move downwards out of the hand range of motion of the child, so that the scissor fork structure is prevented from being formed during folding and rotating to clamp the child, and the use safety is improved.

In one embodiment, the stroller further includes a seat assembly 500 (i.e., the seat of the previous embodiment) for seating a child and is hingedly connected to the front foot assembly 100, although the seat assembly 500 may be connected at least directly or indirectly to other assemblies or rods in order to allow simultaneous folding therewith. Wherein the rear end of the seat assembly 500 is hinged with the rear side bar 330 and/or the lifting bar 420 through the linkage bar 520, so as to realize linkage folding of the seat assembly 500. In the illustration, the linkage rod 520 is hinged to the rear rod 330 and the lifting rod 420 at the same point.

In one embodiment, the hinge point of the lifting bar 420 and the rear bar 330 is lower than the seat assembly 500. The position of the scissors mechanism is reduced as much as possible, and the phenomenon that a user is injured by clamping when the scissors mechanism is folded is avoided.

In the preferred embodiment, the backstay bar partially passes over the backseat assembly 200 and is divided into a main section 331 and an extension section 332 by the backseat assembly 200, the extension section 332 being hingedly connected to the lifting rod 420. The scissors structure is hidden between the front foot assembly 100 and the rear foot assembly 200, and the safety is further improved.

The hinge point between the rear rod 330 and the rear foot assembly 200 is located at the connection between the main body 331 and the extension 332, the connecting line of the two hinge points of the main body 331 is L1, the connecting line of the two hinge points of the extension 332 is L2, and L1: L2= 6-7. In the initial stage of rotation, the rotation amplitude of the push handle assembly 300 is greater than that of the front foot assembly, until the middle and later stages of rotation, the push handle assembly 300 naturally rotates by gravity to drive the front foot assembly 100 to rotate rapidly.

In order to improve the folding smoothness of the stroller in the middle and later turning periods, as shown in fig. 3 and 4, in one embodiment, a torsion spring 340 for driving the folding of the stroller is disposed at the joint of the rear side rod 330 and the upper push rod 310. In the middle and later period of rotation, the upper push rod 310 is located at the waist of an adult approximately, and the torsion spring 340 drives the lower push rod 320 and the rear rod 330 to rotate and approach, so that the whole vehicle is automatically folded, and the folding operation is convenient.

Regarding the two-fold bar, in one embodiment, the two-fold bar 410 includes a first link 411 and a second link 412 hinged to the front leg assembly 100 and the rear leg assembly 200, respectively, and the lifting bar 420 is hinged to the second link 412; when folded, the lower push rod 320 and the rear rod 330 rotate to close to the rear foot assembly 200, and the two folding rods 410 are pulled to fold in half, so that the front foot assembly 100 rotates to close to the rear foot assembly 200.

In order to maintain the child stroller in the unfolded state, in addition to providing a corresponding locking mechanism, in one embodiment, a dead point exists between the first link 411 and the second link 412 during the unfolding or folding process. The method of crossing the dead point is to pull the second link 412 by the lifting rod 420 to make the two folding rods cross the dead point when folding, and push the second link 412 by the lifting rod 420 to make the two folding rods cross the dead point when unfolding.

Referring to fig. 4, in one embodiment, the front foot assembly 100 includes two front wheels 110 and the rear foot assembly 200 includes two rear wheels 210, wherein the track width of the two front wheels 110 is smaller than the track width of the two rear wheels 210. Such that in the folded condition, the front foot assembly 100 is closer to the rear foot assembly 200.

In one embodiment, the front of the seat assembly 500 is hinged to a leg rest assembly 510 for the child's lower leg to rest on.

In the child stroller, all or part of other rod pieces except the push handle assembly are not arranged above the seat assembly (namely above the dotted line), and particularly no assembly or rod piece is connected with the lower push rod (except for the front frame assembly and the rear foot assembly), so that the condition that a scissors structure is formed during folding and rotating to clamp a child is avoided, and the use safety is improved.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not to be construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims (10)

1. A child stroller, comprising:

a forefoot assembly;

a rear foot assembly, the top of which is hinged with the top of the front foot assembly;

the push handle assembly comprises an upper push rod, a lower push rod and a rear side rod, wherein the upper push rod and the lower push rod are hinged with each other, the rear side rod is hinged with the bottom of the upper push rod, and the bottoms of the lower push rod and the rear side rod are respectively hinged with the top and the middle of the rear foot assembly;

the linkage assembly comprises two folding rods arranged between the front foot assembly and the rear foot assembly and a lifting rod with two ends hinged with the two folding rods and the rear side rod.

2. A child stroller according to claim 1, wherein the two folding bars comprise a first and a second connecting bar respectively articulated with the front and rear foot assemblies, the lifting bar being articulated with the second connecting bar;

when the folding bicycle is folded, the lower push rod and the rear side rod rotate to be close to the rear foot assembly, and the two folding rods are pulled to be folded in half, so that the front foot assembly rotates to be close to the rear foot assembly.

3. A child stroller according to claim 2, wherein a dead point exists between the first and second links during unfolding or folding.

4. A stroller in accordance with claim 1, comprising a seat assembly hingedly connected to said front foot assembly, the hinge point of said lifting bar and rear side bar being lower than said seat assembly.

5. A child stroller according to claim 4, wherein the rear side bar partially passes over the rear foot assembly and is divided into a main section and an extension section, the extension section being hingedly connected to the lifting bar.

6. A child buggy according to claim 5, wherein the length ratio of the main section to the extension section is from 6 to 7:1.

7. a child buggy according to claim 1, including a seat assembly hinged to the front foot assembly, the rear end of the seat assembly being hinged to the rear side bar and/or the lifting bar by means of a linkage bar.

8. A child stroller according to claim 1, wherein the front leg assembly comprises two front wheels and the rear leg assembly comprises two rear wheels, wherein the front wheels have a smaller track width than the rear wheels.

9. A stroller according to claim 1, wherein the hinge of the rear side bar and the upper push bar is provided with a torsion spring for driving the folding of the stroller.

10. A child stroller in accordance with claim 1, wherein the front portion of the seat assembly is hinged with a leg rest assembly.

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