A multifunctional suitcase trolley

Abstract

The present invention relates to the technical field of suitcase pushers, and in particular to a multifunctional suitcase pusher, comprising a child pusher and a suitcase, wherein the child pusher and the suitcase are cooperatively installed through an installation assembly, and the child pusher comprises a middle push rod assembly; beneficial effects: a three-section lifting and retracting structure is formed by an upper push rod assembly, a middle push rod assembly and a front bracket assembly; the universal front wheels of the child pusher can be converted into universal wheels of the suitcase, and the structure is simple and reliable; after the child pusher is folded, each group of bracket assemblies are retracted inwards, which not only meets the requirement of the child pusher for a large wheelbase, but also does not affect the volume and aesthetics of the suitcase after folding; when used as a child pusher, it can be folded into a smaller size to meet the basic functions required by the child pusher; when used as a suitcase pusher, the function is the same as that of products on the market, and it can be towed and ridden; when used only as a suitcase, the four-wheel universal wheel provides a very good user experience.

Description

Technical Field

[0001] The invention relates to the technical field of suitcase carts, in particular to a multifunctional suitcase cart. Background Art

[0002] In modern life, with the diversification of family travel needs, multifunctional children's travel products have gradually become the new favorites in the market. Although traditional strollers provide a convenient way for infants and young children to travel, their single functionality is insufficient in long-distance travel or when a large amount of luggage needs to be carried at the same time. At the same time, although ordinary suitcases are convenient for carrying luggage, they lack the function of effectively carrying and caring for children for families with infants and young children.

[0003] There are also many suitcase strollers on the market today, which do not meet the national standards for child strollers when used as baby strollers, or can only be towed when used as suitcases and are not four-wheel universal, or the functions are met at the expense of reducing the capacity of the suitcase.

[0004] Therefore we propose a multifunctional suitcase cart to solve the above problems. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention discloses a multifunctional suitcase stroller, which adopts a technical solution that comprises a child stroller and a suitcase, wherein the child stroller and the suitcase are mounted together via an installation assembly, the child stroller comprises a middle push rod assembly, the top end of the middle push rod assembly is slidably mounted with an upper push rod assembly via an axis one, the bottom end of the middle push rod assembly is slidably mounted with a front bracket assembly via an axis two, the front bracket assembly is rotatably mounted with a front wheel joint assembly via an axis four, the front wheel joint assembly is rotatably mounted with a front wheel assembly via an axis five, and both ends of the top of the front bracket assembly are A rear bracket joint assembly is rotatably installed via axis three, a seat plate assembly is provided on the outer side wall of the front bracket assembly, the rear bracket joint assemblies are rotatably installed with the rear bracket assembly via axis eleven, the front bracket assembly is rotatably installed with the rear bracket connecting rod assembly via axis six, the rear bracket connecting rod assembly is rotatably installed with the rear bracket cross brace rod assembly via axis seven, the rear bracket cross brace rod assembly is rotatably connected to the rear bracket assembly via axis thirteen, the rear bracket assembly is rotatably installed with the rear wheel assembly via axis eight, the middle push rod assembly is rotatably installed with the armrest assembly via axis nine, and the armrest assembly is rotatably installed with the backrest assembly via axis ten.

[0006] As a preferred technical solution of the present invention, universal wheels are symmetrically arranged on one side of the bottom end of the suitcase, a mounting groove for cooperating with the front wheel assembly joint is opened on the other side of the bottom end of the suitcase, and protrusions are symmetrically arranged in the mounting groove, and a locking hook for cooperating with the front bracket assembly is arranged on the upper end of the side wall of the suitcase.

[0007] As a preferred technical solution of the present invention, the front wheel joint assembly includes a locking piece, which is installed in cooperation with the shaft five through a return torsion spring, and a side wall of the locking piece is provided with a groove which is installed in cooperation with the protrusion.

[0008] As a preferred technical solution of the present invention, the rear support cross brace assembly includes two rear support cross braces and a rear support cross brace joint. The two rear support cross braces are rotatably installed through axis twelve and the rear support cross brace joint. The rear support cross brace is rotatably connected to the rear support assembly through axis thirteen.

[0009] As a preferred technical solution of the present invention, slots are symmetrically provided on the upper surface of the seat assembly, and the slots are plugged and installed in cooperation with the bottom end of the backrest assembly.

[0010] The beneficial effects of the present invention are as follows: an upper push rod assembly, a middle push rod assembly and a front bracket assembly form a three-section extending and retracting structure; the universal front wheel of the stroller can be converted into a universal wheel of a suitcase, and the structure is simple and reliable; after the stroller is folded, each group of bracket assemblies are retracted inward, which not only meets the requirement of the stroller for a large wheelbase, but also does not affect the volume and aesthetics of the suitcase after folding; when used as a stroller, it can be folded into a smaller size to meet the basic functions required of a stroller; when used as a suitcase stroller, the function is the same as that of products on the market, and it can be towed and ridden; when used only as a suitcase, the four wheels are universal, and the user experience is very good; and after all are folded and retracted, the structure is compact and neatly arranged. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a three-dimensional diagram of the structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the structural disassembly of the present invention;

[0014] Figure 3 This is a schematic structural diagram of a child stroller of the present invention;

[0015] Figure 4 The present invention is a child stroller structure explosion Figure 1 ;

[0016] Figure 5 The present invention is a child stroller structure explosion Figure 2 ;

[0017] Figure 6 This is a schematic structural diagram of the rear support cross brace assembly of the present invention;

[0018] Figure 7 This is a front view of the front wheel joint assembly of the present invention;

[0019] Figure 8 For the present invention Figure 7 Schematic diagram of the AA cross-section structure;

[0020] Fig. 9 This is a schematic diagram of the locking member structure of the present invention;

[0021] Fig.10 This is a schematic diagram of the structure of the suitcase of the present invention;

[0022] Fig.11 A state reference diagram is used for the present invention.

[0023] In the figure: 1 upper push rod assembly, 2 middle push rod assembly, 3 front bracket assembly, 4 rear bracket assembly, 5 rear bracket connecting rod assembly, 6 rear bracket cross brace rod assembly, 601 rear bracket cross brace rod, 602 rear bracket cross brace joint, 7 front wheel joint assembly, 8 front wheel assembly, 9 rear bracket joint assembly, 10 rear wheel assembly, 11 armrest assembly, 12 backrest assembly, 13 box, 14 universal wheel, 15 protrusion, 16 lock hook, 17 groove, 18 locking piece, 19 axis one, 20 axis two, 21 axis three, 22 axis four, 23 axis five, 24 axis six, 25 axis seven, 26 axis eight, 27 axis nine, 28 axis ten, 29 axis eleven, 30 axis twelve, 31 axis thirteen. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figures 1 to 11As shown, the present invention discloses a multifunctional suitcase cart, which adopts the technical scheme of comprising a child stroller and a suitcase, wherein the child stroller and the suitcase are cooperatively installed by means of an installation assembly, the child stroller comprises a middle push rod assembly 2, the top end of the middle push rod assembly 2 is slidably installed with an upper push rod assembly 1 through an axis 19, the bottom end of the middle push rod assembly 2 is slidably installed with a front bracket assembly 3 through an axis 20, the front bracket assembly 3 is rotatably installed with a front wheel joint assembly 7 through an axis 4 22, the front wheel joint assembly 7 is rotatably installed with a front wheel assembly 8 through an axis 5 23, the top ends of the front bracket assembly 3 are rotatably installed with a rear bracket joint assembly 9 through an axis 3 21, the outer side wall of the front bracket assembly 3 is provided with a seat plate assembly, and the rear bracket joint assembly 9 is rotatably installed with a seat plate assembly through an axis 3 The rear support assembly 4 is rotatably installed on the axis 11 29, the rear support connecting rod assembly 5 is rotatably installed on the front support assembly 3 through the axis 6 24, the rear support connecting rod assembly 5 is rotatably installed on the rear support cross brace assembly 6 through the axis 7 25, the rear support cross brace assembly 6 is rotatably connected to the rear support assembly 4 through the axis 13 31, the rear support assembly 4 is rotatably installed with the rear wheel assembly 10 through the axis 8 26, the middle push rod assembly 2 is installed with the armrest assembly 11 through the axis 9 27, the armrest assembly 11 is installed with the backrest assembly 12 through the axis 10 28, and a three-section lifting and retracting structure is formed by the upper push rod assembly 1, the middle push rod assembly 2 and the front support assembly 3; when the rear support assembly 4 is folded close to the front support assembly 3, the left and right parts of the rear support assembly 4 simultaneously move close to the center plane.

[0026] As a preferred technical solution of the present invention, a universal wheel 14 is symmetrically arranged on one side of the bottom end of the suitcase, a mounting groove for cooperating with the front wheel assembly joint 7 is opened on the other side of the bottom end of the suitcase, and protrusions 15 are symmetrically arranged in the mounting groove, and a locking hook 16 for cooperating with the front bracket assembly 3 is arranged on the upper end of the side wall of the suitcase.

[0027] As a preferred technical solution of the present invention, the front wheel joint assembly 7 includes a locking piece 18, which is mounted in cooperation with the shaft five 23 through a return torsion spring. The side wall of the locking piece 18 is provided with a groove 17 which is mounted in cooperation with the protrusion 15. By locking the locking piece 18 in the front wheel joint assembly 7 in the front bracket assembly 3, when the suitcase is removed from the child stroller, the front wheel joint assembly 7 is returned and locked in the front bracket assembly 3 under the action of the return torsion spring. At this time, the shaft five 23 is perpendicular to the ground, and the front wheel serves as a universal wheel of the stroller.

[0028] As a preferred technical solution of the present invention, the rear support cross brace rod assembly 6 includes two rear support cross braces 601 and a rear support cross brace joint 602. The two rear support cross braces 601 are rotatably installed in cooperation with each other through axis twelve 30 and the rear support cross brace joint 602. The rear support cross brace rod 601 is rotatably connected to the rear support assembly 4 through axis thirteen 31. The two rear support cross braces 601 can form a broken line structure through the rear support cross brace joint 602, so that the rear support cross brace rod assembly 6 can be folded.

[0029] As a preferred technical solution of the present invention, slots are symmetrically provided on the upper surface of the seat plate assembly, and the slots are plugged in and installed with the bottom end of the backrest assembly 12. By plugging and installing the backrest assembly 12 with the slots in different positions, the backrest assembly 12 can be adjusted to different installation positions.

[0030] Working principle of the present invention:

[0031] Use as a suitcase cart: align the protrusion 15 on the suitcase with the groove 17 assembled in the front bracket assembly 3, then the lock between the front wheel joint assembly 7 and the front bracket assembly 3 will be released, and the axis 5 23 in the front wheel assembly 8 is kept parallel to the axis of the universal wheel 14 of the suitcase, and the suitcase is moved closer to the front bracket assembly 3 until the lock hook 16 on the suitcase is locked with the child stroller. Because the suitcase is parallel to the front bracket assembly 3 of the child stroller and has an angle with the ground, the front wheel assembly 8 in the child stroller cannot be universally rotated, and then the rear wheel assembly 10 in the child stroller is closed in a directional manner to achieve universal rotation of the rear wheel assembly 10. At this time, it can be used as a suitcase cart for towing or pushing, and the overall folding and opening can be achieved.

[0032] Use as a suitcase: When the suitcase is installed on the stroller, the rear support assembly 4 is folded close to the front support assembly 3. As can be seen from the above, the universal wheel 14 axis 5 23 of the front wheel assembly 8 is parallel to the universal wheel axis in the suitcase. At this time, it can be used as a trolley case, and when used as a suitcase, the four wheels are universal.

[0033] When used as a child stroller: remove the suitcase, the front wheel joint assembly 7 returns to the locked position under the action of the return torsion spring, and the universal wheel axis of the front wheel assembly 8 is perpendicular to the ground. At this time, the front wheel assembly 8 can be universal, and then open the rear wheel assembly 10 for orientation. At this time, the rear wheel assembly 10 cannot be universally rotated, and it can be used as a child stroller alone. And the stroller can be folded.

[0034] Components not described in detail herein are prior art.

[0035] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the protection scope of the present invention.

Claims

1. A multifunctional suitcase stroller, comprising a child stroller and a suitcase, characterized in that: The child stroller and the suitcase are mounted together via a mounting assembly, the child stroller comprising a middle push rod assembly (2), the top end of the middle push rod assembly (2) being slidably mounted with an upper push rod assembly (1) via an axis one (19), the bottom end of the middle push rod assembly (2) being slidably mounted with a front bracket assembly (3) via an axis two (20), the front bracket assembly (3) being rotatably mounted with a front wheel joint assembly (7) via an axis four (22), the front wheel joint assembly (7) being rotatably mounted with a front wheel assembly (8) via an axis five (23), the top ends of the front bracket assembly (3) being rotatably mounted with a rear bracket joint assembly (9) via an axis three (21), and the outer side wall of the front bracket assembly (3) being provided with a seat plate assembly The rear support joint assembly (9) is rotatably mounted with the rear support assembly (4) via shaft 11 (29); the front support assembly (3) is rotatably mounted with the rear support connecting rod assembly (5) via shaft 6 (24); the rear support connecting rod assembly (5) is rotatably mounted with the rear support cross brace assembly (6) via shaft 7 (25); the rear support cross brace assembly (6) is rotatably connected to the rear support assembly (4) via shaft 13 (31); the rear support assembly (4) is rotatably mounted with the rear wheel assembly (10) via shaft 8 (26); the middle push rod assembly (2) is rotatably mounted with the armrest assembly (11) via shaft 9 (27); the armrest assembly (11) is rotatably mounted with the backrest assembly (12) via shaft 10 (28).

2. The multifunctional suitcase trolley according to claim 1, characterized in that: A universal wheel (14) is symmetrically arranged on one side of the bottom end of the suitcase, a mounting groove for cooperating with a front wheel assembly joint (7) is opened on the other side of the bottom end of the suitcase, and protrusions (15) are symmetrically arranged in the mounting groove, and a locking hook (16) for cooperating with a front bracket assembly (3) is arranged on the upper end of the side wall of the suitcase.

3. The multifunctional suitcase trolley according to claim 2, characterized in that: The front wheel joint assembly (7) comprises a locking piece (18), the locking piece (18) is mounted in cooperation with the shaft 5 (23) via a return torsion spring, and a groove (17) is formed on the side wall of the locking piece (18) for mounting in cooperation with the protrusion (15).

4. The multifunctional suitcase trolley according to claim 3, characterized in that: The rear support cross brace assembly (6) comprises two rear support cross braces (601) and a rear support cross brace joint (602); the two rear support cross braces (601) are rotatably mounted via shaft twelve (30) and the rear support cross brace joint (602); the rear support cross brace (601) is rotatably connected to the rear support assembly (4) via shaft thirteen (31).

5. The multifunctional suitcase trolley according to claim 1, characterized in that: The upper surface of the seat plate assembly is symmetrically provided with slots, and the slots are plugged and installed in cooperation with the bottom end of the backrest assembly (12).

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