CN201769866U - Trolley frame with adjustable distance between front and rear wheels - Google Patents

Abstract

The utility model relates to the technical field of a handcart, in particular to a handcart framework capable of adjusting the distance between front and rear wheel sets, which comprises a front frame, a rear frame and a push handle, wherein the rear frame is connected with the rear wheel set through a rear wheel connecting seat and a shock absorber; and, be equipped with two at least hinge holes on the rear wheel connecting seat, the one end of shock absorber is articulated with the rear wheel support, and its other end is articulated with one of them hinge hole of rear wheel connecting seat, and the hinge hole that the shock absorber articulated is different, and the distance between the front and back wheelset is also different, and when the shock absorber articulated rear wheel connecting seat front end, single seat, basket or vapour chair can be placed to the skeleton, and when the shock absorber articulated rear wheel connecting seat rear end, two seats, basket or vapour chair can be placed to the skeleton.

Description

Trolley frame with adjustable distance between front and rear wheels

Technical field:

The utility model relates to the technical field of trolleys, in particular to a trolley frame with adjustable distance between front and rear wheels.

Background technique:

The stroller can have a seat, a carrier or a car chair on the frame, and is mainly used for riding or storing items for young children. The existing trolley frame includes a front frame, a rear frame and a push handle, the rear frame and the push handle are respectively connected with the front frame, the front wheel is installed at the bottom of the front frame, and the rear wheel group is installed at the bottom of the rear frame. The rear wheel set includes a rear wheel support and two rear wheels that are rotatably connected to the two ends of the rear wheel support. But the rear wheel set of existing trolley frame is fixed on the rear vehicle frame, can't adjust the distance between the front and rear wheel sets, and is inconvenient to use.

Utility model content:

The purpose of the utility model is to provide a wheelbarrow frame that can adjust the distance between the front and rear wheel sets and is easy to use and adjust in view of the deficiencies in the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is: the trolley frame with adjustable distance between the front and rear wheels, which includes a front frame, a rear frame and a push handle, and the rear frame and the push handle are respectively connected with the front frame , the front wheel is installed at the bottom of the front frame, and the rear wheel group is installed at the bottom of the rear frame. The rear wheel group includes a rear wheel bracket and two rear wheels rotatably connected to the two ends of the rear wheel bracket. The space is connected with the shock absorber through the rear wheel connecting seat. The top of the rear wheel connecting seat is fixed on the rear frame, and the bottom is hinged with the rear wheel bracket. There are at least two hinge holes on the rear wheel connecting seat. The shock absorber One end is hinged with the rear wheel bracket, and the other end is hinged with one of the hinge holes of the rear wheel connecting seat.

The front and rear ends of the rear wheel connecting seat are respectively provided with hinged holes.

A convex plate is protruded from the front end of the rear wheel connecting seat, and a hinge hole is arranged on the convex plate.

The beneficial effect of the utility model is that: the trolley frame with adjustable distance between the front and rear wheel sets provided by the utility model, its rear frame and the rear wheel set are connected through the rear wheel connecting seat and the shock absorber, and the top of the rear wheel connecting seat It is fixed on the rear frame, and its bottom is hinged with the rear wheel bracket, so that the rear wheel group can rotate back and forth around the hinge axis at the bottom of the rear wheel connection seat, so that the distance between the front and rear wheel groups can be adjusted; and, the rear wheel connection seat There are at least two hinge holes on the top, one end of the shock absorber is hinged with the rear wheel bracket, and the other end is hinged with one of the hinge holes of the rear wheel connecting seat. When the hinge holes of the shock absorber are different, the front and rear wheels The distances are also different. When the shock absorber is hinged to the front end of the rear wheel connector, the frame can place a single seat, basket or car chair. When the shock absorber is hinged to the rear end of the rear wheel connector, the frame can place two. Seat, carrycot or car chair.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of rear wheel group of the present utility model;

Fig. 3 is a structural schematic diagram of another installation structure of the utility model;

Fig. 4 is a structural schematic diagram of the rear wheel set of another installation structure of the present invention.

Detailed ways:

Below in conjunction with the accompanying drawings the utility model is further described, see shown in Figures 1 to 4, the utility model includes a front frame 1, a rear frame 2 and a push handle 3, and the rear frame 2 and the push handle 3 are respectively connected to the front The vehicle frame 1 is connected, the front wheel 4 is installed at the bottom of the front vehicle frame 1, and the rear wheel group is installed at the bottom of the rear vehicle frame 2, and the rear wheel group includes a rear wheel support 5 and two rear wheels that are rotatably connected at the two ends of the rear wheel support 5 6. The rear frame 2 is connected to the rear wheel group through the rear wheel connecting seat 7 and the shock absorber 8, the top of the rear wheel connecting seat 7 is fixed on the rear frame 2, and the bottom thereof is hinged with the rear wheel bracket 5, so that The rear wheel set can rotate back and forth around the hinged axis at the bottom of the rear wheel connecting seat 7, thereby the distance between the front and rear wheel sets can be adjusted.

The front and rear ends of the rear wheel connecting seat 7 are respectively provided with hinge holes 71 , wherein the front end of the rear wheel connecting seat 7 is protruded with a convex plate 72 , and one of the hinge holes 71 is located on the convex plate 72 . One end of the shock absorber 8 is hinged with the rear wheel bracket 5, and the other end is hinged with one of the hinged holes 71 of the rear wheel connecting seat 7. The shock absorber 8 can play a buffering role, and the hinged hole 71 of the shock absorber 8 is not hinged. Simultaneously, the distance between the front and rear wheel groups is also different. When the shock absorber 8 was hinged to the front end of the rear wheel connecting seat 7, the skeleton could place a single seat, basket or car chair. 7 rear ends, the skeleton can hold two seats, a carrycot or a car chair.

Of course, the above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the utility model patent application within range.

Claims (3)

1. The trolley skeleton with adjustable distance between the front and rear wheels includes a front frame (1), a rear frame (2) and a push handle (3), and the rear frame (2) and the push handle (3) are respectively connected to the front The vehicle frame (1) is connected, and the front wheel (4) is installed at the bottom of the front vehicle frame (1), and the rear wheel group is installed at the bottom of the rear vehicle frame (2), and the rear wheel group includes a rear wheel support (5) and two rotating The rear wheel (6) connected to the two ends of the rear wheel bracket (5) is characterized in that: the rear frame (2) is connected to the rear wheel group through the rear wheel connection seat (7) and the shock absorber (8) , the top of the rear wheel connecting seat (7) is fixed on the rear vehicle frame (2), its bottom is hinged with the rear wheel support (5), and the rear wheel connecting seat (7) is provided with at least two hinged holes (71), One end of the shock absorber (8) is hinged with the rear wheel support (5), and its other end is hinged with one of the hinge holes (71) of the rear wheel connecting seat (7). 2. The trolley frame with adjustable distance between the front and rear wheel sets according to claim 1, characterized in that: the front and rear ends of the rear wheel connecting seat (7) are respectively provided with hinged holes (71). 3. The trolley skeleton with adjustable distance between the front and rear wheel sets according to claim 2, characterized in that: the front end of the rear wheel connecting seat (7) is protrudingly provided with a convex plate (72), and the hinge hole (71) is located at On the convex plate (72).

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