Double-load-bearing sliding rod hand trailer with invariable frame height

Abstract

The utility model discloses a double load-bearing slide bar hand trailer with a height-unchanged frame, which comprises a frame and wheels, the frame comprises four upright posts, longitudinal folding frames positioned at the front and rear ends and hinged with the upright posts, and a plurality of pairs of bottom folding frames and transverse folding frames hinged with the upright posts, the frame is folded through folding of the longitudinal folding frame, the bottom folding frame and the transverse folding frame, the four faces of the frame can be folded, the size is small after the frame is folded, and the frame is convenient to carry when a user goes out and convenient to pack by a manufacturer; the frame further comprises a plurality of connecting columns located on the two sides, the adjacent transverse folding frames and the adjacent bottom folding frames are hinged to the connecting columns, the bearing capacity of the frame is improved, and stability is also improved. Fixing blocks are installed at the top ends of the stand columns and the connecting columns, movable sliding blocks are arranged on the stand columns and the connecting columns, the lower ends of the outer sides of the transverse folding frames and the longitudinal folding frames are hinged to the sliding blocks, the upper ends of the outer sides of the transverse folding frames and the longitudinal folding frames are hinged to the fixing blocks, and the sliding blocks longitudinally slide to drive the transverse folding frames and the longitudinal folding frames to be folded or unfolded.

Description

TECHNICAL FIELD

[0001] The utility model relates to a push -and -pull car technical field especially a double load bearing slide rod hand trailer of car frame unchangeable height. BACKGROUND

[0002] Outdoor activities are more and more liked by people, and have become a kind of leisure fashion activity, and most outdoor activities need to carry a large number of personal articles and activity required articles. After driving to the place, the articles may need to be manually carried to the destination, which not only is time-consuming and laborious, but also destroys the atmosphere of outdoor play. Therefore, foldable trailers are invented on the market, articles are placed on the trailer and pulled to the destination, which saves time and effort. And the folding trailer can be folded, and when not in use, it occupies a small space for folding and storage, which is convenient for carrying out.

[0003] The existing folding trailer, such as Chinese patent CN218858468U, has the following disclosure: a standing type folding car, comprising a bottom frame cross brace, characterized in that the bottom frame cross brace is provided with a bottom frame body on both sides, the outer side of the bottom frame body is hinged with a folding car frame through a rotating shaft, the top of the bottom frame cross brace is provided with a fixing frame, the top of the fixing frame is installed with a holding handle, the outer side of the bottom frame body is installed with a standing connecting rod, the bottom of the bottom frame body is provided with a metal support, the inside of the metal support is hinged with a wheel through a rotating shaft, the outer side of the metal support is provided with a standing leg, the inside of the standing leg is provided with a standing support device extending to the outside, the outer side of the folding car frame is provided with a movable frame, and the folding car frame is hinged with a reinforcing rod between the inner walls of both sides through a rotating shaft.

[0004] The above-mentioned folding car realizes folding through the folding car frames on the left and right sides, but the car frames on the front and back sides cannot be folded, and cannot be completely folded, so that after folding, a large space is still occupied, and the user experience is general. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a double load bearing slide rod hand trailer with unchangeable height of car frame. In order to solve the above technical problems, the utility model provides the following technical scheme.

[0006] A double load bearing slide rod hand trailer with unchangeable height of car frame, comprising a car frame and a wheel installed at the bottom of the car frame, the car frame comprises four columns, a longitudinal folding frame hinged to the columns at the front and rear ends, and a plurality of pairs of bottom folding frames and horizontal folding frames hinged to the columns, and the folding of the longitudinal folding frame, the bottom folding frame and the horizontal folding frame realizes the folding of the car frame; the car frame further comprises a plurality of connecting columns on both sides, and adjacent horizontal folding frames and bottom folding frames are hinged to the connecting columns;

[0007] The top of the stand column and the connecting column is provided with a fixed block, and the stand column and the connecting column are provided with movable sliding blocks, the lower end of the outer side of the horizontal folding frame and the vertical folding frame is hinged to the sliding blocks, and the upper end is hinged to the fixed block, and the horizontal folding frame and the vertical folding frame are folded or unfolded by the longitudinal sliding of the sliding blocks.

[0008] Further, the horizontal folding frame comprises two horizontal rods which are movably riveted at the center, and the horizontal rods are rotatable folded or unfolded with the riveting points as end points; one end of the horizontal rod is hinged to the fixed block, and the other end is hinged to the sliding block.

[0009] Further, the vertical folding frame comprises two cross frames which are hingedly connected, and the cross frame comprises two vertical rods which are movably riveted at the center, and the vertical rods are rotatable folded or unfolded with the riveting points as end points; the inner ends of the two cross frames are hingedly connected through the two vertical rods, and the two vertical rods at the outer end are respectively hinged to the fixed block and the sliding block.

[0010] Further, the bottom folding frame comprises a connecting seat at the center and a plurality of bottom rods, and the inner end of the bottom rod is hinged to the connecting seat.

[0011] Further, the bottom of the stand column and the connecting column is provided with a fixed block, and the stand column and the connecting column are provided with movable sliding blocks, the lower end of the outer side of the horizontal folding frame and the vertical folding frame is hinged to the sliding blocks, and the upper end is hinged to the fixed block, and the horizontal folding frame and the vertical folding frame are folded or unfolded by the longitudinal sliding of the sliding blocks.

[0012] Further, a plurality of hinged slots which are open downward are arranged on the connecting seat, and the bottom rod is hinged in the hinged slot.

[0013] Further, the front end of the frame is provided with a foldable handle frame which is hinged in the fixed part at the front end of the frame.

[0014] Further, the handle frame comprises a fixed seat, connecting rods which are hinged on both sides of the fixed seat, and a pull rod which is installed on the fixed seat and is telescopic, and the end of the connecting rod is hinged with a connecting part which is hinged on the fixed part.

[0015] Further, the top end of the pull rod is provided with a pull ring.

[0016] Further, the front end of the frame is provided with a brake pedal, and the brake pedal is located above the wheel.

[0017] Compared with the prior art, the beneficial effects achieved by the utility model are as follows:

[0018] The utility model discloses a car frame includes four columns, is located in the longitudinal folding frame of front and back end hinge connection with the column, and three pairs of with the column hinge's bottom folding frame, horizontal folding frame, and the folding of longitudinal folding frame, bottom folding frame, horizontal folding frame drives four columns to the center and realizes the folding of car frame to four surfaces of car frame can realize folding, further reduce the volume occupied after folding, facilitate user to go out and carry, also facilitate the merchant to pack and send. Car frame still includes the connecting column of a plurality of roots in both sides, and two roots are established to each side of car frame, and adjacent horizontal folding frame, bottom folding frame hinge connection is on connecting column, and the bearing capacity of car frame has been increased, and the stability of car frame has been increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the perspective view of the utility model.

[0020] Figure 2 It is the rear view of the utility model.

[0021] Figure 3 It is the side view of the utility model.

[0022] Figure 4 It is the bottom view of the utility model.

[0023] Signification of drawing: 1, car frame, 2, wheel, 3, column, 4, longitudinal folding frame, 5, horizontal folding frame, 6, bottom folding frame, 7, fixed block, 8, sliding block, 9, connecting column, 10, horizontal pole, 11, cross frame, 12, vertical pole, 13, connecting seat, 14, bottom pole, 15, fixed part, 16, hinge slot, 17, handle frame, 18, fixed seat, 19, pull rod, 20, connecting rod, 21, connecting piece, 22, pull ring, 23, brake pedal. DETAILED DESCRIPTION

[0024] The technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0025] As Figures 1-4As shown, a double-bearing slide rod hand trailer with a constant height frame comprises a frame 1 and wheels 2 installed at the bottom of the frame 1, the frame 1 comprises four upright columns 3, longitudinal folding frames 4 hingedly connected to the upright columns 3 at the front and rear ends, and three pairs of bottom folding frames 6 and horizontal folding frames 5 hingedly connected to the upright columns. The folding of the four upright columns 3 towards the center through the longitudinal folding frames 4, the bottom folding frames 6 and the horizontal folding frames 5 realizes the folding of the frame 1. The four sides of the frame 1 can be folded to further reduce the occupied volume after folding, which is convenient for users to carry outside and also facilitates merchants to pack and ship.

[0026] The top end of the upright column 3 and the connecting column 9 is provided with a fixed block 7, and the upright column 3 and the connecting column 9 are further provided with a movable sliding block 8. The lower end of the horizontal folding frame 5 and the longitudinal folding frame 4 outside is hingedly connected to the sliding block 8, and the upper end is hingedly connected to the fixed block 7. The folding of the horizontal folding frame 5 and the longitudinal folding frame 4 is driven by the downward sliding of the sliding block 8. The folding of the upright column 3 and the connecting column 9 will not be raised, which reduces the occupied volume and facilitates packing.

[0027] The horizontal folding frame 5 comprises two central movable riveted horizontal rods 10. The two horizontal rods 10 can be folded or unfolded with the riveting point as the endpoint. The structure is relatively simple. One end of the horizontal rod 10 is hingedly connected to the fixed block 7, and the other end is hingedly connected to the sliding block 8.

[0028] The longitudinal folding frame 4 comprises two hingedly connected cross frames 11. The cross frame 11 comprises two central movable riveted longitudinal rods 12. The longitudinal rod 12 can be folded or unfolded with the riveting point as the endpoint. The inner ends of the two cross frames 11 are hingedly connected through the two longitudinal rods 12, and the two longitudinal rods 12 at the outer end are hingedly connected to the fixed block 7 and the sliding block 8, respectively. When the frame is folded, the horizontal rod 10 and the longitudinal rod 12 rotate downward, and the fixed block 7 at the upper end is not movable. The folding is realized by the downward sliding of the sliding block 8 at the lower end. Similarly, when unfolded, the horizontal rod 10 and the longitudinal rod 12 rotate upward, driving the sliding block to slide upward.

[0029] The bottom folding frame 6 comprises a central connecting seat 13 and four bottom rods 14. The inner end of the bottom rod 14 is hingedly connected to the connecting seat 13. The bottom of the upright column 3 and the connecting column 9 is provided with a fixing piece 15, and the outer end of the bottom rod 14 is hingedly connected to the fixing piece 15. When folded, the connecting seat 13 is displaced upward, driving the upright column 3 and the connecting column 9 to be folded through the bottom rod 14. The four bottom rods 14 rotate upward to be folded.

[0030] The connecting seat 13 is provided with four downwardly opening hinge grooves 16, and the bottom rod 14 is hinged in the hinge grooves 16. The hinge grooves 16 are downwardly open, and the bottom rod 14 can only rotate downwardly, so that the downward pressure of the goods on the frame 1 does not cause the bottom rod to be reversely folded. The folding cart can also be folded by pulling the connecting seat 13 upwardly.

[0031] The frame front end is provided with a foldable handle frame 17 which is folded or unfolded synchronously with the frame 1, and is convenient for storage and packaging. The handle frame 17 is hinged in the fixing member 15 at the frame 1 front end, and is telescopic, so that the handle frame 17 can be adjusted to a suitable position according to different heights and standing positions of users, and is convenient for use of the users.

[0032] The handle frame 17 comprises a fixed seat 18, connecting rods 20 hinged on both sides of the fixed seat, and a telescopic pull rod 19 installed on the fixed seat. The pull rod 19 is telescopic through two inserted rods. The end of the connecting rod 20 is hinged with a connecting member 21 which is hinged on the fixing member, so that the handle frame 17 is rotated through the connecting member 21. When folding, the two side columns 3 are folded to drive the two connecting rods 20 to rotate downwardly and fold around the fixed seat 18, and the fixed seat 18 is displaced upwardly; when unfolding, the fixed seat 18 is displaced downwardly, and the two side columns 3 drive the connecting rods 20 to rotate and unfold.

[0033] The top end of the pull rod 19 is provided with a pull ring 22 which is gripped by the user to pull the cart. The frame 1 front end is provided with a brake pedal 23 which is above the two front wheels 2, so that the cart is braked by stepping on the brake pedal 23, and the user cannot stop the cart due to large inertia.

[0034] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, so that all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A double load bearing slide-in trailer with constant height frame, comprising a frame and wheels mounted to the bottom of the frame, characterized in that, The frame comprises four uprights, longitudinal folding frames hinged to the uprights at front and rear ends, and a plurality of pairs of bottom folding frames and horizontal folding frames hinged to the uprights, and the frame is folded by folding the longitudinal folding frames, the bottom folding frames and the horizontal folding frames; the frame further comprises a plurality of connecting columns on both sides, and adjacent horizontal folding frames and bottom folding frames are hinged to the connecting columns; The top ends of the uprights and the connecting columns are provided with fixing blocks, and the uprights and the connecting columns are provided with movable sliding blocks, the lower ends of the horizontal folding frames and the longitudinal folding frames are hinged to the sliding blocks, and the upper ends are hinged to the fixing blocks, and the horizontal folding frames and the longitudinal folding frames are folded or unfolded by longitudinal sliding of the sliding blocks; The horizontal folding frame comprises two horizontally arranged horizontal rods hingedly connected at the center, and the horizontal rods are rotatable to be folded or unfolded with the hinge points as end points; one end of the horizontal rod is hinged to the fixing block, and the other end is hinged to the sliding block; The longitudinal folding frame comprises two cross frames hingedly connected at the center, and the cross frame comprises two longitudinally arranged longitudinal rods hingedly connected at the center, and the longitudinal rods are rotatable to be folded or unfolded with the hinge points as end points; the inner ends of the two cross frames are hingedly connected by the two longitudinal rods, and the outer ends of the two longitudinal rods are hingedly connected to the fixing block and the sliding block, respectively.

2. The dual load-bearing slide bar hand trailer with constant height of the frame according to claim 1, characterized in that, The bottom folding frame comprises a connecting seat at the center and a plurality of bottom rods, and the inner ends of the bottom rods are hingedly connected to the connecting seat.

3. The dual load bearing slide-in trailer with constant height frame of claim 2, wherein, The bottom of the upright and the connecting column is provided with a fixing member, and the outer end of the bottom rod is provided with a hinged fixing member.

4. The dual load bearing slide-in trailer with constant height frame of claim 2, wherein, The connecting seat is provided with a plurality of downwardly open hinged grooves, and the bottom rod is hingedly connected to the hinged groove.

5. The dual load bearing slide-in trailer with constant height frame of claim 3, wherein, The front end of the frame is provided with a foldable handle frame, and the handle frame is hingedly connected to the fixing member at the front end of the frame.

6. The dual axle slide-in trailer of claim 5, wherein, The handle frame comprises a fixing seat, connecting rods hingedly connected to both sides of the fixing seat, and a telescopic pull rod mounted on the fixing seat, and the end of the connecting rod is hingedly connected to a connecting member, and the connecting member is hingedly connected to the fixing member.

7. The dual axle slide-in trailer of claim 6, wherein, The top end of the pull rod is provided with a pull ring.

8. The dual axle slide-in trailer of claim 1, wherein, The front end of the frame is provided with a brake pedal, and the brake pedal is located above the wheel.

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