CN221438032U - Foldable carrying device - Google Patents

Abstract

The utility model discloses a foldable carrying device which comprises a side baffle assembly, a horizontal bottom support assembly and a support assembly. The side baffle assembly comprises a front side frame and a rear side frame which are vertically and oppositely arranged; the bottom bracket assembly is used for bearing goods and comprises a front underframe and a rear underframe which are respectively hinged with the front side frame and the rear side frame; the support assembly is positioned below the bottom support assembly and comprises a front support piece and a rear support piece which are respectively hinged with the front side frame and the rear side frame, and a straight support piece, wherein the top of the straight support piece is hinged with the front underframe and the rear underframe, and the bottom of the straight support piece is hinged with the front support piece and the rear support piece; when the folding device is folded, the front side frame and the rear side frame are mutually closed, the straight supporting piece moves upwards, the front underframe and the rear underframe, the front supporting piece and the rear supporting piece are rotationally folded and are accommodated between the front side frame and the rear side frame. The length of the straight supporting piece is reduced, the production and manufacturing cost is correspondingly reduced, the whole structure is more compact, and the appearance is more concise.

Description

Foldable carrying device

Technical Field

The utility model relates to a household carrier, in particular to a foldable carrier.

Background

A transport vehicle for loading articles or children outdoors includes a frame, wheels, and a handlebar. The frame comprises a bottom frame and four side baffle frames, at least one pair of side baffle frames are provided with corresponding rods for folding for the convenience of folding, and the rods for folding are longer because the side baffle frames are far away from the bottom frame. And thus the manufacturing cost is increased.

For example, patent document CN 112849251B discloses a baby trailer with an automatic folding back, an upper frame above a bottom frame, and a longer distance, resulting in a longer length support assembly.

Disclosure of utility model

The application provides a foldable carrying device, which is lower in manufacturing cost.

The application provides a collapsible carrier device comprising:

The side block assembly comprises a front side frame and a rear side frame which are vertically and oppositely arranged;

The bottom support assembly is used for bearing cargoes and comprises a front underframe and a rear underframe which are respectively hinged with the front side frame and the rear side frame;

The support assembly is positioned below the bottom support assembly and comprises a front support piece and a rear support piece which are respectively hinged with the front side frame and the rear side frame, and a straight support piece, wherein the top of the straight support piece is hinged with the front chassis and the rear chassis, and the bottom of the straight support piece is hinged with the front support piece and the rear support piece;

When the folding device is folded, the front side frame and the rear side frame are mutually closed, the straight supporting piece moves upwards, and the front underframe, the rear underframe, the front supporting piece and the rear supporting piece are rotationally folded and are accommodated between the front side frame and the rear side frame.

The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.

Optionally, the carrying device comprises a sliding part arranged on the straight supporting part and a pair of diagonal supporting parts symmetrically arranged relative to the straight supporting part, one end of each diagonal supporting part is hinged with the sliding part, and the other end of each diagonal supporting part is respectively hinged with the front underframe and the rear underframe or respectively hinged with the front supporting part and the rear supporting part.

Optionally, a locking assembly is provided between the slider and the straight strut to maintain the carrier in the deployed state.

Optionally, the sliding member has a sliding limit position on the straight supporting member, and when the sliding member is in the limit position, the carrying device is in a deployed state.

Optionally, the carrier includes a wheel assembly disposed at a bottom of the side rail assembly.

Optionally, the front side frame and the rear side frame each comprise two upright posts arranged vertically and a cross bar arranged between the two upright posts, and the wheel assembly is arranged at the bottom of each upright post.

Optionally, the wheel assembly comprises a front wheel arranged at the bottom of the front side frame and a rear wheel arranged at the bottom of the rear side frame, wherein the front wheel is a universal wheel capable of deflecting towards any direction, and the rear wheel is a directional wheel capable of advancing towards a specific direction only.

Optionally, a connecting piece connected with the bottom support component is arranged on the upright post.

Optionally, the carrier includes a liner disposed in the space defined by the side rail assembly and the bottom bracket assembly, the liner including front, rear, bottom panels respectively abutting the front and rear side frames, the bottom bracket assembly, and side rail between the front and rear panels.

Optionally, the two sides of the side baffle are detachably connected with the front piece and the rear piece.

In the carrying device, the supporting component is positioned below the bottom supporting component, so that the length of the straight supporting piece is at least shortened, and the production and manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic view of a carrier device according to an embodiment of the present application in an unfolded state;

FIG. 2 is a schematic view of the carrier of FIG. 1 during folding;

FIG. 3 is a schematic view of the carrier of FIG. 1 in a folded configuration;

FIG. 4 is a schematic view of a carrier device according to another embodiment of the present application in an unfolded state;

FIG. 5 is a schematic view of the carrier of FIG. 4 during folding;

FIG. 6 is a schematic view of the carrier of FIG. 4 in a folded configuration;

FIG. 7 is a schematic view of a carrier with a liner according to an embodiment of the present application;

fig. 8 is a schematic view of the side shield of the carrier of fig. 7 after removal.

Reference numerals in the drawings are described as follows:

100. A side stop assembly; 110. a front side frame; 120. a rear side frame; 130. a column;

200. A bottom bracket assembly; 210. a front chassis; 220. a rear chassis;

300. a support assembly; 310. a front support; 320. a rear support;

410. A straight support member; 420. a slider; 430. a diagonal bracing member;

500. A wheel assembly; 510. a front wheel; 520. a rear wheel;

600. A lining; 610. a front sheet; 620. a rear sheet; 630. a negative; 640. side baffle.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the 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 an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements 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 herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

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

Referring to fig. 1-6, the present application provides a collapsible carrier having an unfolded state and a collapsed state. Which includes a side rail assembly 100, a bottom bracket assembly 200, and a support assembly 300, the side rail assembly 100 including a front side frame 110 and a rear side frame 120 disposed vertically and oppositely. The bottom bracket assembly 200 is used to carry cargo and includes a front chassis 210 and a rear chassis 220 hinged to the front side frame 110 and the rear side frame 120, respectively. The support assembly 300 is positioned below the bottom bracket assembly 200 and includes front and rear supports 310 and 320 hinged to the front and rear side frames 110 and 120, respectively, and a straight stay 410. The top of the straight stay 410 is hinged with the front chassis 210 and the rear chassis 220, and the bottom is hinged with the front support 310 and the rear support 320. Because the space below the bottom bracket assembly 200 is compact, the supporting assembly 300 must be closer to the bottom than some existing structures located above, thereby reducing the length of the straight bracket 410, correspondingly reducing the manufacturing cost, and the overall structure is more compact, and the side rail assembly is only a front side frame and a rear side frame, so that the appearance is more compact.

The straight struts 410 engage the front support 310, the rear support 320 and the bottom bracket assembly 200 in the unfolded state, providing sufficient load bearing capacity of the bottom bracket assembly 200. Of course, in order to keep the carrier in the unfolded state, locking means are provided at the active site, for example at the position of mutual articulation.

When folded, the front and rear frames 110 and 120 are drawn toward each other, and the straight stay 410 is moved upward, and the bottom stay assembly 200 and the support assembly 300 are folded and received between the front and rear frames 110 and 120. In the folded state, the height of the carrying device depends on one of the bottom bracket assembly 200 and the side rail assembly 100, and is independent of the supporting assembly 300, and enough space is provided above the bottom bracket assembly 200 for folding and storing the carrying device, so that the height of the carrying device is basically unchanged before and after folding, and the carrying device is convenient to store and transport.

The bottom bracket assembly 200 is in a horizontal posture in the unfolded state, the front and rear supports 310 and 320 are also in a horizontal posture, and the straight bracket 410 is in a vertical posture in order to improve the overall structural strength. In one embodiment, the carrier device includes a slider 420 disposed on a straight strut 410, and a pair of opposite straight struts 410 symmetrically disposed and hinged at one end to the slider 420 and at the other end in the following manner:

In the first embodiment, referring to fig. 1 to 3, the other ends of the diagonal braces 430 are hinged to the front support 310 and the rear support 320, respectively, and form a triangle structure with the support assembly 300 in the unfolded state.

In the second embodiment, referring to fig. 4 to 6, the other ends of the diagonal members 430 are hinged to the front chassis 210 and the rear chassis 220, respectively, and form a triangle structure with the bottom bracket assembly 200 in the unfolded state.

When folded, the slider 420 moves downward, and the angular change rates of the two diagonal members 430 in the two embodiments are different. Therefore, the length of the diagonal member 430 of the first embodiment is longer than that of the diagonal member 430 of the second embodiment, and the second embodiment is preferred, so that the manufacturing cost can be further reduced. And the included angle between the two diagonal members 430 of the second embodiment is smaller, more compact and more compact in appearance. Wherein the straight stay 410 and the diagonal stay 430 are rod members.

In one embodiment, a locking assembly is provided between the slider 420 and the strut 410 to hold the carrier in the deployed state. Wherein the locking assembly automatically locks after the slider 420 is slid to a position on the straight strut 410 during deployment. This position is defined as the extreme position of the slider 420 on the straight strut 410.

In one embodiment, the carrier includes a wheel assembly 500 disposed at the bottom of the side rail assembly 100. And the movement is convenient. Wherein the front and rear side frames 110 and 120 each include two vertically disposed columns 130 (two columns are shown overlapping, only one column is shown), and a cross bar (not shown) disposed between the two columns 130 (not shown in the figures but not obscured by the columns), and the wheel assembly 500 is disposed at the bottom of the columns 130.

Column 130 may be used to connect other components, as follows:

For example, in one embodiment, the wheel assembly 500 includes a front wheel 510 disposed at the bottom of the front side frame and a rear wheel 520 disposed at the bottom of the rear side frame, the front wheel 510 being a steerable universal wheel that can be deflected in any direction, and the rear wheel 520 being a directional wheel that can travel only in a particular direction.

Also for example, in one embodiment, a connector (not shown) is provided on column 130 to connect base support assembly 200. The connector is hinged to the base support assembly 200.

Referring to fig. 7, in one embodiment, the carrier includes a liner 600 disposed in a space defined by the side rail assembly 100, the bottom bracket assembly 200, the liner 600 including a front panel 610, a rear panel 620, a back panel 630, and a side rail 640 between the front panel 610 and the back panel 620, respectively, against the front side frame 110, the rear side frame 120, the bottom bracket assembly 200. The front and rear panels 610 and 620 are each connected to a respective side frame and the bottom panel 630 is connected to the bottom bracket assembly 200. When folding, the locking assembly is unlocked, the center of the bottom plate 630 is pulled upwards to drive the bottom bracket assembly 200 to fold, and the supporting assembly 300 is pulled to fold synchronously by the straight supporting piece 410 and the inclined supporting piece 430 to drive the front side frame 110 and the rear side frame 120 to be close to each other.

Referring to fig. 7 and 8, in one embodiment, the side barrier 640 is detachably connected to the front panel 610 and the rear panel 620 on both sides. For example, quick assembly and disassembly are achieved through zippers, velcro fasteners and the like. Facilitating removal of the side flaps 640 for access to internal items and access by a child. Especially in the open air, erect the table on preceding, rear side frame, side shield 640 is favorable to taking article after dismantling, and because the side shield is flexible material, can curl and accomodate, can not occupy the space of circumference round, facilitate the use.

In the carrying device, the supporting component is positioned below the bottom supporting component, so that the lengths of the straight supporting component and the inclined supporting component are shortened, and the production and manufacturing cost is reduced. And the compact design makes the appearance more compact.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.

The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.

Claims (10)

1. A collapsible carrier, comprising:

The side block assembly comprises a front side frame and a rear side frame which are vertically and oppositely arranged;

The bottom support assembly is used for bearing cargoes and comprises a front underframe and a rear underframe which are respectively hinged with the front side frame and the rear side frame;

The support assembly is positioned below the bottom support assembly and comprises a front support piece and a rear support piece which are respectively hinged with the front side frame and the rear side frame, and a straight support piece, wherein the top of the straight support piece is hinged with the front chassis and the rear chassis, and the bottom of the straight support piece is hinged with the front support piece and the rear support piece;

When the folding device is folded, the front side frame and the rear side frame are mutually closed, the straight supporting piece moves upwards, and the front underframe, the rear underframe, the front supporting piece and the rear supporting piece are rotationally folded and are accommodated between the front side frame and the rear side frame.

2. The collapsible carrier device of claim 1, comprising a slider provided on the straight strut and a pair of diagonal struts symmetrically arranged with respect to the straight strut, one end of the pair of diagonal struts being hinged to the slider and the other end being hinged to the front and rear chassis, respectively, or to the front and rear supports, respectively.

3. A collapsible carrier according to claim 2, wherein a locking assembly is provided between the slider and the strut to maintain the carrier in the deployed condition.

4. The collapsible carrier of claim 2 wherein the slider has a limit position for sliding movement on the straight strut, the carrier being in an extended state when the slider is in the limit position.

5. The collapsible carrier of claim 1, comprising a wheel assembly disposed at a bottom of the side rail assembly.

6. The collapsible carrier of claim 5 wherein said front and rear side frames each comprise two vertically disposed posts and a cross bar disposed therebetween, said wheel assemblies being disposed at the bottoms of the posts.

7. The collapsible carrier of claim 5 wherein the wheel assembly comprises a front wheel disposed at a bottom of the front side frame and a rear wheel disposed at a bottom of the rear side frame, the front wheel being a universal wheel deflectable in any direction, the rear wheel being a directional wheel that is only movable in a particular direction.

8. The collapsible carrier of claim 6 wherein the upright is provided with a connector for connecting the base support assembly.

9. The collapsible carrier of claim 1, comprising a liner disposed in the space defined by the side rail assemblies and the bottom bracket assembly, the liner comprising front, rear, bottom panels respectively abutting the front side frame, rear side frame, bottom bracket assembly, and side rail between the front and rear panels.

10. The collapsible carrier of claim 9 wherein the side flaps are detachably connected on both sides to the front and rear panels.