WO2019227529A1

WO2019227529A1 - New handcart of three-roller structure

Info

Publication number: WO2019227529A1
Application number: PCT/CN2018/091046
Authority: WO
Inventors: 简世坤
Original assignee: 广东顺和工业有限公司
Priority date: 2018-05-28
Filing date: 2018-06-13
Publication date: 2019-12-05
Also published as: CN208278139U

Abstract

Provided is a new handcart of a three-roller structure. The handcart comprises a support (1), wherein the support (1) is configured to be n-shaped, an upper end of the support (1) is provided with a three-section pull rod (2), and two supporting legs at lower ends of the support (1) are provided with threaded sleeves (3); a lower end of each of the threaded sleeves (3) is provided with a ratchet (11); a connection rod (4) penetrates a supporting sleeve (6) and is rotatably connected to a spade plate (10); an upper end of a torsion spring (5) is fixed to the threaded sleeve (3), and a lower end of the torsion spring (5) is fixed to an inner wall of the supporting sleeve (6); a connection frame (7) is fixed to one side of the supporting sleeve (6); an outer end of the connection support (7) is rotatably connected to a triangular frame (8); and three ends of the triangular support (8) are all rotatably connected to rollers (9). The handcart of a three-roller structure is provided with three rollers, such that the function of walking up and down stairs can be realized. The three-roller connection frame is connected to the rollers in a wrapping manner, and the handcart is thus simpler in structure and easy to use, and has a good folding effect, so that accommodation and folding of the rollers, folding of the spade plate and retraction of the three-section pull rod can be realized, and the volume is smaller after folding, thereby saving on the space required for storing the cart.

Description

Novel three-wheeled structure trolley

Technical field

The utility model belongs to the technical field of trolleys, and particularly relates to a novel three-wheel structure trolley.

Background technique

Most of the existing trolleys are only provided with two wheels, which is convenient for transporting the goods on the flat road. However, if there are many potholes on the road or it is necessary to transport between the upper and lower floors, it is very troublesome when there is no elevator. Some trolleys cannot walk on the stairs at all. The wheels are directly connected to the support base, and they only have a simple folding function. The volume after folding is still large, which is not conducive to storage and transportation.

Utility model content

The purpose of this utility model is to provide a new three-wheeled structure trolley to solve the problems raised in the background art mentioned above.

In order to achieve the above object, the present invention provides the following technical solution: A new three-wheeled structure trolley includes a bracket, the shape of the bracket is set as an N-shape, and the upper end of the bracket is provided with a three-section pull rod. A dental tube sleeve is provided on each of the legs, and the lower end of the dental tube sleeve is provided with ratchet teeth. The lower end of the dental tube sleeve and a middle portion of the ratchet teeth are provided with a connecting rod. A torsion spring is sleeved on the upper end of the connecting rod. The connecting rod passes through the support sleeve and rotates to connect the shovel plate. The inside of the support sleeve is provided with reverse ratchet teeth opposite to the ratchet teeth at the lower end of the dental tube sleeve, and the upper end of the torsion spring is fixed on the dental tube sleeve and twisted. The lower end of the spring is fixed to the inner wall of the support sleeve. A connection bracket is fixed on one side of the support sleeve, and the outer end of the connection bracket is connected to the tripod in turn. The three ends of the tripod are wrapped and connected with rollers.

Preferably, the maximum rotation angle of the blade is ninety degrees.

Preferably, a gasket is sleeved on the lower end of the connecting rod and located on the lower side of the support sleeve.

The technical effect and advantages of the utility model: The new three-wheeled structure trolley can realize the function of walking on stairs by setting three rollers, the structure is more streamlined and convenient, and the folding effect is good. And the three-stage pull rod shrinks, the volume is smaller after folding, saving the space for storing the trolley, and the tripod wrapped and connected with the roller can make the roller have a longer service life.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the present invention;

2 is a schematic diagram of an explosion structure of the present utility model;

3 is a schematic structural diagram of a folded state of the present invention;

FIG. 4 is a schematic view of a reverse ratchet structure of the present invention.

In the picture: 1 bracket, 2 three-stage tie rods, 3 pipe sleeves, 4 connecting rods, 5 torsion springs, 6 support sleeves, 7 connecting brackets, 8 tripods, 9 rollers, 10 shovel plates, 11 ratchet teeth, 12 reverse To ratchet.

Detailed ways

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the implementation example. Based on the embodiments of the present invention, all other embodiments obtained by a person having ordinary skill in the art without making creative work belong to the protection scope of the present invention.

The utility model provides a novel three-wheeled structure trolley as shown in FIGS. 1-4, which includes a bracket 1, the shape of the bracket 1 is set to an N-shape, and the upper end of the bracket 1 is provided with a three-section pull rod 2. A dental tube cover 3 is provided on the two legs of the lower end of the bracket 1, and a ratchet 11 is provided on the lower end of the dental tube cover 3. A connecting rod 4 is provided on the lower end of the dental tube cover 3 and located in the middle of the ratchet 11. A torsion spring 5 is sleeved on the upper end of the connecting rod 4. The connecting rod 4 passes through the support sleeve 6 and rotates to connect the shovel plate 10. The inside of the support sleeve 6 is opposite to the ratchet 11 on the lower end of the dental sleeve 3. In the reverse ratchet 12, the upper end of the torsion spring 5 is fixed on the dental tube sleeve 3, the lower end of the torsion spring 5 is fixed on the inner wall of the support sleeve 6, and a connecting frame 7 is fixed on one side of the support sleeve 6, The outer end of the connecting frame 7 is rotatably connected to the tripod 8, and three ends of the tripod 8 are wrapped and connected with rollers 9.

Specifically, the maximum rotation angle of the shovel plate 10 is ninety degrees.

Specifically, a gasket is sleeved on the lower end of the connecting rod 4 and located on the lower side of the support sleeve 6.

When folding, turn the tripod 8 inward to fold the wheel, then fold the shovel board, and shrink the three-stage drawbar to complete the folding. After folding, as shown in Figure 3, you need to push down the support sleeve when opening 6. Disengage the reverse ratchet teeth 12 and the ratchet teeth 11 and then rotate the tripod 8 to the outside.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that , It can still modify the technical solutions described in the foregoing embodiments, or equivalent replacement of some of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention, All should be included in the protection scope of the utility model.

Claims

A novel three-wheeled structure trolley includes a bracket (1), which is characterized in that the shape of the bracket (1) is set to an n-shape, and the upper end of the bracket (1) is provided with a three-section pull rod (2), and the bracket (1) a dental tube sleeve (3) is provided on the two legs of the lower end, and the lower end of the dental tube sleeve (3) is provided with ratchet teeth (11), and the lower end of the dental tube sleeve (3) is located on the ratchet teeth (11) The middle part is provided with a connecting rod (4), the torsion spring (5) is sleeved on the upper end of the connecting rod (4), the connecting rod (4) passes through the support sleeve (6) and is connected to the shovel plate ( 10), the inside of the support sleeve (6) is provided with reverse ratchet teeth (12) opposite to the ratchet teeth (11) at the lower end of the dental tube sleeve (3), and the upper end of the torsion spring (5) is fixed to the dental tube On the sleeve (3), the lower end of the torsion spring (5) is fixed to the inner wall of the support sleeve (6), and one side of the support sleeve (6) is fixed with a connection bracket (7), and the outside of the connection bracket (7) One end is connected to the tripod (8), and three ends of the tripod (8) are wrapped and connected with a roller (9).
The novel three-wheeled structure trolley according to claim 1, wherein the maximum rotation angle of the shovel plate (10) is ninety degrees.
The novel three-wheeled structure trolley according to claim 1, characterized in that: a gasket is sleeved on the lower end of the connecting rod (4) and located on the lower side of the support sleeve (6).