CN218021686U

CN218021686U - Large-volume folding trolley

Info

Publication number: CN218021686U
Application number: CN202221356176.7U
Authority: CN
Inventors: 周永帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-12-13
Anticipated expiration: 2032-06-01

Abstract

The utility model provides a large-volume folding trolley, which comprises a trolley frame main body and a caster wheel component, wherein the trolley frame main body comprises a front frame, a rear frame, two side frames which are respectively hinged with the upper sides of the front frame and the rear frame and can be extended and retracted back and forth, and a foldable bottom plate which is respectively hinged with the bottoms of the front frame and the rear frame; the side frame comprises at least one scissor-type folding bracket, the upper ends of two sides of the folding bracket are respectively hinged with the front frame and the rear frame, and the lower ends of two sides of the folding bracket are respectively hinged with the front frame and the rear frame in a sliding manner; when the foldable rack is folded, the foldable rack drives the front frame and the rear frame to be close to the middle, and the lower end of the foldable rack slides downwards to enable the foldable rack to extend downwards and fold; the utility model provides a pair of large-capacity foldable trolley overcomes the defect that the effective volume of the existing foldable trolley is smaller and the storage volume is large.

Description

Large-volume foldable trolley

Technical Field

The utility model relates to a folding car field especially relates to a large-capacity foldable handcart.

Background

In daily life, for example, in the processes of buying vegetables, shopping, delivering goods and the like, the trolley is a convenient short-distance transportation tool. The most common folding trolley in the market at present forms a frame by scissors-shaped folding supports, and the scissors-shaped supports are mutually crossed and folded, so that the folding structure is simple, and the folding is convenient, for example, chinese patent publication No. CN212074075U discloses a folding trolley.

Although the scissors-type folding support is simple in structure, it still has certain drawbacks. The scissors type folding support has the frame height that can become low along with folding support's expansion, and when drawing in, folding support's height becomes high, and folding support length has also decided the minimum height when drawing in to influence effective volume.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a large-capacity foldable handcart is provided to overcome the less and bulky defect of accomodating of current folding handcart effective volume.

(II) technical scheme

In order to solve the technical problem, the utility model provides a large-volume folding trolley, which comprises a trolley frame main body and a caster wheel component, wherein the trolley frame main body comprises a front frame and a rear frame, two side frames which are respectively hinged with the upper sides of the front frame and the rear frame and can be extended and retracted back and forth, and a foldable bottom plate which is respectively hinged with the bottoms of the front frame and the rear frame; the side frame comprises at least one scissor-type folding bracket, the upper ends of two sides of the folding bracket are respectively hinged with the front frame and the rear frame, and the lower ends of two sides of the folding bracket are respectively hinged with the front frame and the rear frame in a sliding manner; when the foldable rack is folded, the foldable rack drives the front frame and the rear frame to be drawn close to the middle, and the lower end of the foldable rack slides downwards to enable the foldable rack to extend downwards and to be folded. By adopting the structure, when the foldable bracket is folded, the lower end of the foldable bracket slides downwards, so that the foldable bracket extends downwards and is folded, the height of the foldable bracket can not be increased when the foldable bracket is folded, and the storage volume is reduced; when the foldable frame is unfolded, the lower end of the foldable support slides upwards to extend and unfold the foldable support upwards, so that the height of the frame main body cannot be reduced when the frame main body is unfolded, and the effective volume is increased.

Furthermore, the number of the folding supports is two, the two folding supports are hinged to each other, and the middle parts of the two folding supports are hinged to a U-shaped bracket. The foldable bottom plate comprises a first bottom frame and a second bottom frame which are hinged with each other, the first bottom frame is hinged with the front frame, the second bottom frame is hinged with the rear frame, and the U-shaped bracket is supported at the hinged position of the first bottom frame and the second bottom frame.

Furthermore, the folding support comprises a first folding rod and a second folding rod, the middle parts of the first folding rod and the second folding rod are mutually hinged, one end of the first folding rod is hinged to the front frame or the rear frame, the end part of the second folding rod is hinged to a connecting shaft, a sliding block is arranged on the connecting shaft, and a sliding way matched with the sliding block is arranged on each of the front frame and the rear frame; the other end of the first folding rod is hinged with the U-shaped bracket.

Furthermore, the first chassis is hinged to the second chassis through a hinge seat, the first chassis is hinged to one end of the hinge seat, the second chassis is hinged to the other end of the hinge seat, and the U-shaped bracket is located on the lower side of the hinge seat.

Furthermore, the caster wheel assembly comprises front caster wheels symmetrically arranged on two sides of the bottom of the front frame and rear caster wheels symmetrically arranged on two sides of the bottom of the rear frame.

Furthermore, the rear frame further comprises a pull rod assembly, and the pull rod assembly is hinged to the middle of the lower end of the rear frame. The upper side of the rear frame is provided with a clamping seat, and the pull rod assembly is clamped and positioned in the clamping seat. The frame is characterized in that a cloth bag used for containing articles is arranged in the frame main body, one end of the cloth bag is connected with the front frame, and the other end of the cloth bag is connected with the rear frame.

(III) advantageous effects

The utility model provides a large-volume folding trolley, the upper ends of the two sides of the folding bracket are respectively hinged with the front frame and the rear frame, the lower ends of the two sides of the folding bracket are respectively hinged with the front frame and the rear frame in a sliding way, and when the folding trolley is folded, the lower end of the folding bracket slides downwards to enable the folding bracket to extend downwards and fold in, thereby ensuring that the height of the folding bracket cannot be increased when the folding bracket is folded in, and reducing the storage volume; when the foldable frame is unfolded, the lower end of the foldable bracket slides upwards to extend and unfold the foldable bracket upwards, so that the height of the frame main body cannot be reduced when the frame main body is unfolded, and the effective volume is increased; this foldable handcart, simple structure, it is convenient to expand, and it is small to accomodate, and effective volume is big, has overcome the less and bulky defect of accomodating of current foldable handcart effective volume.

Drawings

Fig. 1 is a perspective view of a large-capacity foldable hand truck according to the present invention;

fig. 2 is a perspective view of the large-capacity foldable trolley of the present invention from another viewing angle;

FIG. 3 is a perspective view of the large volume foldable trolley of the present invention with the cloth bag removed;

fig. 4 is a schematic structural view of the large-capacity foldable trolley of the present invention after the cloth bag is removed;

FIG. 5 is an exploded view of the folding frame and front frame of a large capacity foldable stroller of the present invention;

fig. 6 is a perspective view of a second folding bar of a large-capacity foldable hand truck according to the present invention;

FIG. 7 is a perspective view of a foldable bottom plate of a large capacity foldable stroller of the present invention;

fig. 8 is a perspective view of the folded large-capacity foldable stroller of the present invention;

fig. 9 is a schematic structural view of the folded large-capacity foldable stroller of the present invention;

the corresponding part names for the various reference numbers in the figures are: 1. a front frame; 2. a rear frame; 3. a side frame; 4. a foldable bottom panel; 5. a U-shaped bracket; 7. a drawbar assembly; 8. a clamping seat; 9. a cloth bag; 31. folding the bracket; 41. a first chassis; 42. a second chassis; 43. a hinged seat; 61. a front caster; 62. a rear caster; 101. a slideway; 311. a first folding bar; 312. a second folding bar; 313. a connecting shaft; 314. a slide block.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 9, the present invention provides a large-capacity foldable trolley, which comprises a trolley frame main body and caster assemblies, wherein the trolley frame main body comprises a front frame 1 and a rear frame 2 arranged at intervals, two side frames 3 hinged to the upper sides of the front frame 1 and the rear frame 2 respectively and capable of extending back and forth, and a foldable bottom plate 4 hinged to the bottoms of the front frame 1 and the rear frame 2 respectively; wherein, the front frame 1 is U-shaped, the rear frame 2 is rectangular, and the two side frames 3 are symmetrically arranged at two sides of the foldable bottom plate 4.

Referring to fig. 3 and 4, each side frame 3 includes at least one scissor-type folding bracket 31, upper ends of two sides of the folding bracket 31 near the front and rear frames are respectively hinged to the front frame 1 and the rear frame 2, and lower ends of two sides of the folding bracket 31 near the front and rear frames are respectively hinged to the front frame 1 and the rear frame 2 in a sliding manner, so as to be capable of sliding and rotating relative to the front and rear frames.

Referring to fig. 3, 4 and 7, in the present embodiment, there are two folding brackets 31, two folding brackets 31 are hinged to each other, and the middle portions of the two folding brackets 31 are hinged to the U-shaped bracket 5. Set up U-shaped bracket 5, can increase support intensity, the structure is more stable. The foldable bottom plate 4 comprises a first bottom frame 41 and a second bottom frame 42 which are hinged with each other, the first bottom frame 41 is hinged with the front frame 1, the second bottom frame 42 is hinged with the rear frame 2, and the U-shaped bracket 5 is supported at the hinged part of the first bottom frame 41 and the second bottom frame 42. The first chassis 41 and the second chassis 42 have the same structure and are hinged through a hinge seat 43, the first chassis 41 is hinged at one end of the hinge seat 43, the second chassis 42 is hinged at the other end of the hinge seat 43, and the U-shaped bracket 5 is located at the lower side of the hinge seat 43.

Referring to fig. 5 and 6, the folding bracket 31 includes a first folding bar 311 and a second folding bar 312 whose middle portions are hinged to each other, one end of the first folding bar 311 is hinged to the front frame 1 or the rear frame 2, and the other end of the first folding bar 311 is hinged to the U-shaped bracket 5. The end of the second folding rod 312 is hinged with a connecting shaft 313, a sliding block 314 is arranged on the connecting shaft 313, the front frame 1 and the rear frame 2 are both provided with a slideway 101 matched with the sliding block 314, and the sliding block 314 is slidably mounted in the slideway 101. In this manner, the lower ends of both sides of the folding bracket 31 are secured to be slidably hinged to the front and rear frames.

Referring to fig. 3 and 4, the caster assembly includes front casters 61 symmetrically disposed at both sides of the bottom of the front frame 1, and rear casters 62 symmetrically disposed at both sides of the bottom of the rear frame 2.

Referring to fig. 1 and 3, the foldable stroller further includes a handle assembly 7, and the handle assembly 7 is hinged to the middle of the lower end of the rear frame 2. The upper side of the rear frame 2 is provided with a clamping seat 8, and the pull rod assembly 7 is clamped and positioned in the clamping seat 8.

Referring to fig. 1 and 2, a cloth bag 9 for containing articles is installed in the frame body, one end of the cloth bag 9 is connected with the front frame 1, and the other end of the cloth bag 9 is connected with the rear frame 2.

Referring to fig. 8 and 9, when folded, the folding bracket 31 drives the front frame 1 and the rear frame 2 to move closer to the middle, and the lower end of the folding bracket 31 slides downwards, so that the folding bracket 31 extends downwards and is folded. Referring to fig. 1 and 2, when the foldable frame is unfolded, the front frame 1 and the rear frame 2 are separated to both sides, and the foldable bracket 31 is driven to be unfolded, and the lower end of the foldable bracket 31 slides upwards, so that the foldable bracket 31 extends upwards and unfolds.

The large-volume foldable trolley provided by the embodiment has the advantages of simple structure, convenience in unfolding, small storage volume and large effective volume; the upper ends of two sides of the folding support are respectively hinged with the front frame and the rear frame, and the lower ends of two sides of the folding support are respectively hinged with the front frame and the rear frame in a sliding manner; when the foldable frame is unfolded, the lower end of the foldable support slides upwards to extend and unfold the foldable support upwards, so that the height of the frame main body cannot be reduced when the frame main body is unfolded, and the effective volume is increased.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A large-volume folding trolley comprises a trolley frame main body and a caster wheel assembly, wherein the trolley frame main body comprises a front frame (1) and a rear frame (2), two side frames (3) which are respectively hinged with the upper sides of the front frame (1) and the rear frame (2) and can stretch back and forth, and a foldable bottom plate (4) which is respectively hinged with the bottoms of the front frame (1) and the rear frame (2); the method is characterized in that: the side frame (3) comprises at least one scissor-type folding bracket (31), the upper ends of two sides of the folding bracket (31) are respectively hinged with the front frame (1) and the rear frame (2), and the lower ends of two sides of the folding bracket (31) are respectively hinged with the front frame (1) and the rear frame (2) in a sliding manner; when the foldable frame is folded, the foldable support (31) drives the front frame (1) and the rear frame (2) to approach to the middle, and the lower end of the foldable support (31) slides downwards to enable the foldable support (31) to extend downwards and fold.

2. A large volume, foldable trolley according to claim 1, further comprising: the folding bracket is characterized in that the number of the folding brackets (31) is two, the two folding brackets (31) are hinged with each other, and the middle parts of the two folding brackets (31) are hinged with U-shaped brackets (5).

3. A large volume, foldable trolley according to claim 2, wherein: the foldable bottom plate (4) comprises a first bottom frame (41) and a second bottom frame (42) which are hinged to each other, the first bottom frame (41) is hinged to the front frame (1), the second bottom frame (42) is hinged to the rear frame (2), and the U-shaped bracket (5) is supported at the hinged position of the first bottom frame (41) and the second bottom frame (42).

4. A large volume, foldable trolley according to claim 2, wherein: folding support (31) include middle part first folding rod (311) and second folding rod (312) of mutual articulated, the one end of first folding rod (311) articulates preceding frame (1) or on rear frame (2), the tip of second folding rod (312) articulates there is connecting axle (313), be provided with slider (314) on connecting axle (313), preceding frame (1) with all be provided with on rear frame (2) with slider (314) complex slide (101).

5. A large volume, foldable trolley according to claim 4, wherein: the other end of the first folding rod (311) is hinged with the U-shaped bracket (5).

6. A large volume, foldable trolley according to claim 3, wherein: first chassis (41) with second chassis (42) are articulated mutually through articulated seat (43), first chassis (41) articulate the one end of articulated seat (43), second chassis (42) articulate the other end of articulated seat (43), U-shaped bracket (5) are located the downside of articulated seat (43).

7. A large volume, foldable trolley according to claim 1, further comprising: the caster wheel assembly comprises front caster wheels (61) symmetrically arranged on two sides of the bottom of the front frame (1) and rear caster wheels (62) symmetrically arranged on two sides of the bottom of the rear frame (2).

8. A large volume, foldable trolley according to claim 1, further comprising: the rear frame is characterized by further comprising a pull rod assembly (7), wherein the pull rod assembly (7) is hinged to the middle of the lower end of the rear frame (2).

9. A large volume, foldable trolley according to claim 8, further comprising: the upper side of the rear frame (2) is provided with a clamping seat (8), and the pull rod assembly (7) is clamped and positioned in the clamping seat (8).

10. A large volume, foldable trolley according to claim 1, further comprising: a cloth bag (9) used for containing articles is installed in the frame main body, one end of the cloth bag (9) is connected with the front frame (1), and the other end of the cloth bag is connected with the rear frame (2).