CN220974200U - Foldable trailer - Google Patents

Abstract

The utility model discloses a foldable trailer, which comprises a frame and rollers arranged at the bottom of the frame, wherein the frame comprises a plurality of upright posts, a plurality of pairs of bottom supporting frames hinged with the upright posts, and a plurality of pairs of transverse folding frames and longitudinal folding frames hinged between the upright posts, the transverse folding frames can realize transverse folding, the longitudinal folding frames can realize longitudinal folding, the four sides of a folding vehicle can realize folding, the occupied volume after folding is further reduced, and the folding trailer is convenient for a user to carry when going out. The fixed block is installed at the tail end of the stand column, the slide block is arranged on the stand column, the lower ends of the outer sides of the transverse folding frame and the longitudinal folding frame are hinged to the fixed block, the upper ends of the transverse folding frame and the longitudinal folding frame are hinged to the slide block, the transverse folding frame and the longitudinal folding frame are driven to be folded or unfolded through the longitudinal sliding of the slide block, and the folding or unfolding mode is simple and meets the convenience of use of a user.

Description

Foldable trailer

Technical Field

The utility model relates to the technical field of push-pull vehicles, in particular to a foldable trailer.

Background

In the current society, outdoor activities are increasingly liked by young people, and become leisure and fashion activities, and most of the outdoor activities need to carry a large number of personal articles. The manual handling of the articles to the destination is not only labor-intensive, but also damages the outdoor playing atmosphere. Thus, collapsible trailers are invented commercially to push or pull a large number of items onto the trailer to a destination. And the folding trailer can be folded, and does not occupy a large space when not in use.

The prior folding trailer is as Chinese patent CN218858468U, the disclosure of which is as follows: the utility model provides a stand-type folding car, includes the underframe stull, its characterized in that, the both sides of underframe stull all are provided with the underframe main part, the outside of underframe main part articulates through the pivot has folding frame, the top of underframe stull is provided with the mount, the handle is installed to the top of mount, the connecting rod of standing is installed in the outside of underframe main part, the bottom of underframe main part is provided with metal support, the inside of metal support articulates through the pivot has the gyro wheel, the outside of metal support is provided with the leg of standing, the inside of leg of standing is provided with the strutting arrangement that stands that extends to the outside, folding frame's outside is provided with the movable frame, it has the stiffening rod to articulate through the pivot between folding frame's the both sides inner wall.

The folding bicycle is folded through the folding bicycle frames on the left side and the right side, but the bicycle frames on the front side and the rear side cannot be folded, so that the volume after folding is still overlarge, and the user experience is more general.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides a foldable trailer. In order to solve the technical problems, the utility model provides the following technical scheme.

The utility model provides a folding trailer, includes the frame and installs in the gyro wheel of frame bottom, the frame includes a plurality of stands, a plurality of pairs of with stand articulated bottom support frame and a plurality of pairs of articulated cross folding frame and the vertical folding frame between the stand, the fixed block is installed to the stand end, establishes the slider on the stand, the lower extreme in the cross folding frame, the vertical folding frame outside articulates on the fixed block, and the upper end articulates on the slider, drives the folding of cross folding frame, vertical folding frame or expands through the slider longitudinal sliding.

Further, the transverse folding frame comprises a plurality of pairs of cross rod assemblies which are connected in a hinged manner; the longitudinal folding frame comprises a plurality of pairs of longitudinal rod assemblies which are connected in a hinged mode.

Further, the cross bar assembly comprises a first cross bar and a second cross bar, and the first cross bar and the second cross bar are movably riveted; the longitudinal rod assembly comprises a first longitudinal rod and a second longitudinal rod, and the first longitudinal rod and the second longitudinal rod are movably riveted.

Further, the cross rod assembly is hinged and fixed through the end parts of two adjacent first cross rods and two adjacent second cross rods; the longitudinal rod assembly is hinged and fixed at the end parts of two adjacent first longitudinal rods and two adjacent second longitudinal rods; the first cross rod is hinged to the sliding block, and the second cross rod is hinged to the fixed block; the first longitudinal rod is hinged on the sliding block, and the second longitudinal rod is hinged on the fixed block.

Further, the bottom support frame comprises a connecting seat in the center and a plurality of bottom rods, one ends of the bottom rods are hinged to the connecting seat, and the other ends of the bottom rods are hinged to the fixed blocks.

Further, a first supporting rod and a second supporting rod which are in the same direction are arranged on the bottom supporting frame, the inner ends of the first supporting rod and the second supporting rod are hinged to the connecting seat, the outer ends of the first supporting rod and the second supporting rod are provided with fixing pieces which are connected in a hinged mode, and the fixing pieces are arranged on the transverse folding frame.

Further, a cap is arranged at the top of the upright post, and the diameter of the cap is larger than that of the upright post.

Further, a plurality of hinge grooves with downward openings are formed in the connecting seat, and the first supporting rod, the second supporting rod and the bottom rod are hinged in the hinge grooves.

Further, a pulling frame is arranged at one end of the frame, the pulling frame comprises a fixing seat, connecting rods at two sides of the fixing seat and a pull rod hinged to the fixing seat, the inner end of each connecting rod is hinged to the fixing seat, and the outer end of each connecting rod is hinged to the fixing blocks at two sides.

Further, a pull ring is arranged at the top end of the pull rod.

Compared with the prior art, the utility model has the following beneficial effects:

The frame comprises a plurality of upright posts, a plurality of pairs of bottom supporting frames hinged with the upright posts, and a plurality of pairs of transverse folding frames and longitudinal folding frames hinged between the upright posts, wherein the transverse folding frames can realize transverse folding, the longitudinal folding frames can realize longitudinal folding, four sides of the folding cart can realize folding, the occupied volume after folding is further reduced, and the folding cart is convenient for a user to carry when going out. The fixed block is installed at the stand end, establishes the slider on the stand, and the lower extreme in horizontal folding frame, the vertical folding frame outside articulates on the fixed block, and the upper end articulates on the slider, drives horizontal folding frame, vertical folding frame folding or expansion through the slider longitudinal sliding, and folding or expansion mode is comparatively simple, satisfies the convenience that the user used.

Drawings

Fig. 1 is an expanded perspective view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a left side view of the present utility model.

Fig. 4 is a bottom view of the present utility model.

FIG. 5 is a folded perspective view of the present utility model

Reference numerals: 1. the device comprises a frame, 2, rollers, 3, upright posts, 4, a bottom support frame, 5, a transverse support frame, 6, a longitudinal support frame, 7, a fixed block, 8, a sliding block, 9, a cross bar assembly, 10, a longitudinal bar assembly, 11, a first cross bar, 12, a second cross bar, 13, a first longitudinal bar, 14, a second longitudinal bar, 15, a connecting seat, 16, a bottom bar, 17, a first support frame, 18, a second support frame, 19, a fixed piece, 20, a hinge groove, 21, a cap, 22, a pulling frame, 23, a fixed seat, 24, a pull rod, 25, a connecting rod, 26, a pull ring, 27 and a brake pedal.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, a foldable trailer comprises a frame 1 and rollers 2 mounted at the bottom of the frame 1, wherein the frame 1 comprises six upright posts 3, two pairs of bottom supporting frames 4 hinged with the upright posts 3, and a transverse folding frame 5 and a longitudinal folding frame 6 hinged between every two upright posts 3, the transverse folding frame 5 can drive two transverse upright posts 3 to transversely fold, and the longitudinal folding frame 6 can drive two longitudinal upright posts 3 to longitudinally fold, so that four faces of a folding vehicle can be folded, the occupied volume after folding is further reduced, and the folding trailer is convenient for a user to carry when going out. The fixed block 7 is installed to the end of stand 3, establishes the slider 8 that can reciprocate on the stand 3, and the lower extreme in horizontal folding frame 5, the vertical folding frame 6 outside articulates on fixed block 7, and the upper end articulates on slider 8, and it is folding or expansion to drive horizontal folding frame 5, vertical folding frame 6 through slider 8 longitudinal sliding, and folding or expansion's mode is comparatively simple, satisfies the convenience that the user used.

The illustrated cross folding frame 5 includes two pairs of hingedly connected cross bar assemblies 9 and the longitudinal folding frame 6 includes two pairs of hingedly connected longitudinal bar assemblies 10. The illustrated rail assembly 9 comprises a first rail 11 and a second rail 12, the first rail 11 being movably riveted with the second rail 12; the side rail assembly 10 includes a first side rail 13 and a second side rail 14, the first side rail 13 being movably riveted to the second side rail 14.

The inner ends of the two pairs of cross rod assemblies 9 are hinged and fixed through the end parts of two adjacent first cross rods 11 and second cross rod ends 12; the inner end of the longitudinal rod assembly 10 is hinged and fixed by the end parts of two adjacent first longitudinal rods 13 and second longitudinal rods 14. The outer end of the cross rod assembly 9 is hinged to the sliding block 8 through a first cross rod 11, and a second cross rod 12 is hinged to the fixed block 7 to realize fixation; the outer end of the longitudinal rod assembly 10 is hinged with the sliding block 8 through a first longitudinal rod 13, and a second longitudinal rod 14 is hinged with the fixed block 7 to realize fixation.

The bottom support frame 4 comprises a connecting seat 15 positioned in the center and four bottom rods 16, one end of each bottom rod 16 is hinged on the connecting seat 15 in the center, and the other end of each bottom rod 16 is respectively hinged on the fixed block 7 at the lower end of the upright post 3. The bottom support frame 5 is provided with a first support rod 17 and a second support rod 18 which are in the same direction, the inner ends of the first support rod 17 and the second support rod 18 are hinged on the connecting seat 15, the outer ends of the first support rod 17 and the second support rod 18 are provided with a fixing piece 19 which is hinged and connected, and the outer ends of the first support rod 17 and the second support rod 18 are connected to the hinging points of the inner ends of the two first cross rods 11 through the fixing piece 19. The design of the first supporting rod 17 and the second supporting rod 18 further increases the stability and firmness of the bottom of the cart, and when a user places too many objects, the bottom can provide enough support and is not easy to damage; when the article is displaced due to shaking in the pushing process, the first supporting rod 17 and the second supporting rod 18 are increased, so that the article can be propped against from the lower part from more angles, and the stability is improved. The design of the two pairs of bottom support frames 5 further increases the accommodating space of the folding trailer, and more articles can be placed on the cart.

A plurality of hinge grooves 19 with downward openings are arranged on the connecting seat 15, and the first supporting rod 17, the second supporting rod 18 and the bottom rod 16 are hinged in the hinge grooves. The connecting groove 19 is opened downwards, so that the first supporting rod 17, the second supporting rod 18 and the bottom rod 16 can only rotate downwards, and the cart can be folded by lifting the connecting seat 15 upwards. The connecting seat 11 is lifted upwards, the bottom rod 12 rotates downwards to drive the upright post 3 to fold inwards, and the first supporting press 17 and the second supporting rod 18 can play a role in driving the transverse supporting frames 5 on two sides to fold, so that the folding of the cart is facilitated.

The top of the upright post 3 is provided with a cap 21, the diameter of the cap 21 is larger than that of the upright post 3, and the cap 21 props against the sliding block 8 from the upper end to prevent the sliding block 8 from falling out of the upright post 3 when sliding.

The front end of the frame 1 is provided with a pulling frame 22, the pulling frame 22 comprises a fixed seat 23, connecting rods 25 on two sides of the fixed seat 23 and a pull rod 24 hinged on the fixed seat 23, the inner ends of the connecting rods 25 are hinged on the fixed seat 22, the outer ends of the connecting rods are hinged on the fixed blocks 7 on two sides, when the frame is folded, the two connecting rods 25 rotate downwards by taking the fixed blocks 7 as the center, the fixed seat 23 moves downwards, and meanwhile, the upright posts 3 on two sides are driven to be folded. The pull rod 24 is hinged to the front end of the fixed seat 23, and can rotate to adapt to the pulling of the cart by people with different heights.

A pull ring 26 is provided at the top of the pull rod 24 as shown, and a user grasps the pull ring 26 to pull the cart. A brake pedal 27 is arranged above the two rollers 2 at the end of the pulling frame 22 to prevent a user with large inertia from being unable to stop the trailer.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. The utility model provides a folding trailer, includes the frame and installs in the gyro wheel of frame bottom, its characterized in that, the frame includes a plurality of stands, a plurality of pairs of with stand articulated bottom support frame and a plurality of pairs of articulated horizontal folding frame and the vertical folding frame between the stand, the fixed block is installed to the stand end, establishes the slider on the stand, the lower extreme in horizontal folding frame, the vertical folding frame outside articulates on the fixed block, and the upper end articulates on the slider, drives horizontal folding frame, vertical folding frame folding or expansion through slider longitudinal sliding.

2. A collapsible trailer as claimed in claim 1 wherein said cross-folding frame comprises a plurality of pairs of hingedly connected cross-bar assemblies; the longitudinal folding frame comprises a plurality of pairs of longitudinal rod assemblies which are connected in a hinged mode.

3. The collapsible trailer of claim 2 wherein said rail assembly comprises a first rail and a second rail, said first rail being in snap-fit engagement with said second rail; the longitudinal rod assembly comprises a first longitudinal rod and a second longitudinal rod, and the first longitudinal rod and the second longitudinal rod are movably riveted.

4. A collapsible trailer as claimed in claim 3 wherein said rail assemblies are hingedly secured by adjacent first and second rail ends; the longitudinal rod assembly is hinged and fixed at the end parts of two adjacent first longitudinal rods and two adjacent second longitudinal rods; the first cross rod is hinged to the sliding block, and the second cross rod is hinged to the fixed block; the first longitudinal rod is hinged on the sliding block, and the second longitudinal rod is hinged on the fixed block.

5. A collapsible trailer as claimed in claim 1 wherein said bottom support frame comprises a central connecting base and a plurality of bottom bars, said bottom bars being hinged at one end to the connecting base and at the other end to the fixed block.

6. The foldable trailer of claim 5, wherein the bottom support frame is provided with a first support rod and a second support rod which are in the same direction, the inner ends of the first support rod and the second support rod are hinged on the connecting seat, the outer ends of the first support rod and the second support rod are provided with a fixing piece which is hinged and connected, and the fixing piece is arranged on the transverse folding frame.

7. The collapsible trailer of claim 1 wherein said post top is capped, said cap having a diameter greater than the post diameter.

8. The foldable trailer of claim 6, wherein the connecting base is provided with a plurality of hinge grooves with downward openings, and the first support bar, the second support bar and the bottom bar are hinged in the hinge grooves.

9. The foldable trailer of claim 1, wherein a pulling frame is provided at one end of the frame, the pulling frame comprises a fixing base, connecting rods at two sides of the fixing base, and a pull rod hinged to the fixing base, wherein the inner ends of the connecting rods are hinged to the fixing base, and the outer ends of the connecting rods are hinged to the fixing blocks at two sides.

10. A collapsible trailer as claimed in claim 9 wherein said pull rod is provided with a pull ring at its top end.