CN212500499U - Foldable trailer - Google Patents

Abstract

The utility model relates to a collapsible trailer comprises pull rod, mainboard, four universal wheels, a scalable hand lever, two telescopic links, two hinges, a right angle draw-in groove, adopts mainboard, intermediate lamella and back plate to be the loading end to connect it with the hinge, make it realize folding function, connect two less bottom plates with two telescopic links, make it realize the flexible function of bottom plate.

Description

Foldable trailer

Technical Field

The utility model relates to a simple and easy transport means, especially a collapsible trailer.

Background

Along with the development of times economy, people need more and more things to be carried in life, and the hand trailer is born as soon as possible. Most hand trailers have smaller frames, are very inconvenient to transport large objects, occupy larger space during storage and bring great troubles to life. For overcoming the above current hand trailer's defect, the utility model relates to a collapsible trailer when solving and occupying the space problem, has increased hand trailer's length, makes the big article of transportation that hand trailer can be better.

Disclosure of Invention

The utility model aims at overcoming the shortcoming of traditional hand trailer, providing a collapsible trailer that portable, convenient laborsaving, the space that occupies is little.

The utility model provides a foldable trailer, includes pull rod, mainboard and gyro wheel, pull rod and support frame sliding connection, the support frame passes through the holder to be fixed, the other end of support frame is articulated with the one end of mainboard, the other end and the intermediate lamella of mainboard pass through hinge connection, intermediate lamella and back plate pass through the connecting rod and connect, two mainboard gyro wheels are installed at the mainboard rear portion, install two back plate gyro wheels on the back plate.

Furthermore, the pull rod is in a shape like a Chinese character 'ji', the retainer and the support frame are fixed to be in a shape like a Chinese character 'ji' and hollow inside, and the pull rod can slide in the cavity of the support frame.

Furthermore, the upper part of the main board is provided with a U-shaped main board front groove, and the shape and position of the main board front groove are matched with the shape and position of the pull rod after sliding into the support frame.

Furthermore, the number of the connecting rods is two, the bottom parts of the middle plate and the rear plate are respectively provided with a rod collecting box, and the connecting rods are in sliding fit with the rod collecting boxes.

Furthermore, a main board rear groove is formed in the bottom of the main board, and the shape and the position of the main board rear groove are matched with those of the middle board and the connecting rod on the rear board after the middle board and the rear board are folded.

Furthermore, a main board through hole is formed in one end, close to the pull rod, of the main board, and a rear board through hole is formed in one end of the rear board.

According to the utility model discloses a collapsible trailer has following characteristics: the occupied space is small, and the carrying is convenient; the bearing surface of the hand trailer can be extended and lengthened; simple structure, convenient dismantlement and change.

Drawings

Fig. 1 is a schematic view of an overall structure of a foldable trailer according to an embodiment of the present invention.

Fig. 2 is a schematic view of a foldable trailer according to an embodiment of the present invention in unfolded use.

Fig. 3 is a folding schematic diagram of accomodating of foldable trailer of the embodiment of the utility model.

Fig. 4 is a folding schematic diagram of accomodating of foldable trailer of the embodiment of the utility model.

In the figure: 1-pull rod, 2-retainer, 3-support frame, 4-main board, 5-intermediate board, 6-rear board, 7-connecting rod, 8-hinge, 9-rear board roller, 10-main board roller, 11-main board through hole, 12-rear board through hole, 13-main board front groove, 14-main board rear groove and 15-rod-collecting box.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, the foldable trailer comprises a pull rod 1, a main board 4 and rollers, wherein the pull rod 1 is connected with a support frame 3 in a sliding mode, the support frame 3 is fixed through a retainer 2, the other end of the support frame 3 is hinged to one end of the main board 4, the pull rod 1 is in a shape like a Chinese character 'ji', the retainer 2 and the support frame 3 are fixed to form a shape like a Chinese character 'ji', the interior of the retainer and the support frame is hollow, and the pull rod 1 can slide in a cavity of the support frame 3. The upper portion of mainboard 4 is equipped with the mainboard front recess 13 of several types of style of calligraphy, and the shape position of mainboard front recess 13 matches with the shape position behind pull rod 1 slided into support frame 3, and after pull rod 1 slided into support frame 3 completely, rotate support frame 3, they can be very complete agree with in mainboard front recess 13. The upper end of the pull rod 1 is also provided with a switch, and the support frame 3 is also provided with a limit device controlled by the switch and used for assisting the extension and the fixation of the pull rod 1.

The other end of the main plate 4 is connected to the intermediate plate 5 by two hinges 8, and the end faces thereof face outward when the main plate 4 and the intermediate plate 5 are folded by the hinges 8. The middle plate 5 and the rear plate 6 are connected through connecting rods 7, the number of the connecting rods 7 is two, the bottom parts of the middle plate 5 and the rear plate 6 are respectively provided with a rod collecting box 15, and the connecting rods 7 are in sliding fit with the rod collecting boxes 15. When the rear plate 6 is pushed with force, the two connecting rods 7 slide into the rod-receiving box 15, so that the middle plate 5 and the rear plate 6 are combined together. The bottom of the main board 4 is provided with a main board rear groove 14, the shape position of the main board rear groove 14 is matched with the shape position of the middle board 5 after being folded and the shape position of the connecting rod 7 on the rear board 6, and when the main board 4 is rotated and the middle board 5 and the rear board 6 are combined, the main board rear groove 14 can just accommodate the connecting rod 7 and the rod collecting box 15 after being contracted.

Two mainboard gyro wheels 10 are installed to mainboard 4 rear portion, install two back plate gyro wheels 9 on the back plate 6, wherein the gyro wheel can be installed for the universal wheel, can select mecanum wheel in another embodiment, and after the intermediate lamella 5 and the back plate 6 shrink and with mainboard 4 are folding, be equipped with a bellied parcel chamber (not drawn in the description drawing) on the face of mainboard gyro wheel 10 and back plate gyro wheel 9 relative position for folding accomodate the back gyro wheel and can be held down completely. Mainboard 4 is close to the one end of pull rod 1 and is equipped with mainboard through- hole 11, and 6 one ends of back plate are equipped with back plate through-hole 12, and after just folding as intermediate lamella 5 and 6 shrink of back plate and mainboard 4, mainboard through-hole 11 and back plate through-hole 12 can coincide, form the armrest apparatus of a similar lug.

The utility model relates to a collapsible trailer theory of operation as follows:

when needs transported article with the trailer, open pull rod 1 and support frame 3 to adjust suitable height through the switch on the pull rod 1, expand mainboard 4 and intermediate lamella 5, and according to the distance of the big or small adjustment intermediate lamella 5 of article and back plate 6, then let mainboard gyro wheel 10 and back plate gyro wheel 9 contact ground, place article on mainboard 4, intermediate lamella 5 and back plate 6 and drag the transportation.

When the main board is not needed to be used, the main board is stored in the storage box, and the pull rod 1 is slid into the inner cavity of the support frame 3 and is rotatably placed in the groove 13 in the front surface of the main board. The rear panel 6 is retracted towards the middle panel 5 and rotated together with the main panel 4 to be folded and tightened. When the mainboard through-hole 11 after tightening up can coincide with back plate through-hole 12, form the armrest apparatus of a similar lug, can be used to carry and take the whole folding trailer after accomodating.

Claims (6)

1. The utility model provides a collapsible trailer, includes pull rod (1), mainboard (4) and gyro wheel, characterized by: pull rod (1) and support frame (3) sliding connection, support frame (3) are fixed through holder (2), the other end of support frame (3) is articulated with the one end of mainboard (4), the other end and the intermediate lamella (5) of mainboard (4) are connected through hinge (8), intermediate lamella (5) and back plate (6) are connected through connecting rod (7), two mainboard gyro wheels (10) are installed at mainboard (4) rear portion, install two back plate gyro wheels (9) on back plate (6).

2. A collapsible trailer according to claim 1, wherein: the pull rod (1) is in a shape like a Chinese character 'ji', the retainer (2) and the support frame (3) are fixed to form a shape like a Chinese character 'ji' and are hollow inside, and the pull rod (1) can slide in a cavity of the support frame (3).

3. A collapsible trailer according to claim 1, wherein: the upper portion of mainboard (4) is equipped with several style of calligraphy mainboard openly recess (13), and the shape position of mainboard openly recess (13) matches with the shape position behind pull rod (1) slip into support frame (3).

4. A collapsible trailer according to claim 1, wherein: the number of the connecting rods (7) is two, the bottom parts of the middle plate (5) and the rear plate (6) are respectively provided with a rod collecting box (15), and the connecting rods (7) are in sliding fit with the rod collecting boxes (15).

5. A collapsible trailer according to claim 1, wherein: the bottom of the main board (4) is provided with a main board rear groove (14), and the shape and the position of the main board rear groove (14) are matched with the shape and the position of the connecting rod (7) on the middle board (5) and the rear board (6) which are folded back.

6. A collapsible trailer according to claim 1, wherein: one end of the main board (4) close to the pull rod (1) is provided with a main board through hole (11), and one end of the rear board (6) is provided with a rear board through hole (12).

Images