CN216374605U - Portable folding shopping cart with extensible handle - Google Patents

Abstract

The utility model relates to a portable folding shopping cart with an extensible handle, wherein the foldable handle of the shopping cart is separated from a cart body, and the foldable handle is connected with the cart body through a handle hinge and an inclined stay bar; the handle hinge is arranged at the bottom of the vehicle body or on a vehicle body back plate or a vehicle wheel shaft, and the handle hinge enables the foldable handle to rotate around the handle hinge; one end of the diagonal brace is fixedly connected with the vehicle body through a diagonal brace lock catch, and the other end of the diagonal brace is in limit connection with the turnover handle through a diagonal brace hinge; the limit connection enables the turnover handle to be stably connected with the vehicle body in a vertical state or a set inclination angle through a back plate buckle arranged on the vehicle body and/or a buckle arranged on the inclined stay bar and/or a turnover handle buckle. When the front wheel is pushed forwards and meets an obstacle, the front wheel can be lifted by utilizing the lever principle only by increasing the downward pressure acting on the handle, so that the purpose of crossing the obstacle is realized.

Description

Portable folding shopping cart with extensible handle

Technical Field

The utility model relates to the field of machinery, in particular to a folding shopping cart.

Background

At present, the existing folding shopping cart mainly has two-wheel structures and four-wheel structures. No matter the shopping cart of two-wheeled structure pushes or drags the line, all need to incline the automobile body to through arm strength control inclination, it is great to user's physical demands. In contrast, a four-wheeled shopping cart can be pushed with less force, greatly relieving the physical strength of the user.

However, the existing four-wheel folding shopping cart has the following defects:

1) most four-wheel folding shopping carts adopt a large wheel and a small wheel design, and when the shopping carts are pushed, the smaller front wheels have poor trafficability when meeting depressions in the road surface or obstacles;

2) the push force of the four-wheel folding shopping cart with the handle vertical to the ground is transmitted through the movable hinge when the shopping cart is pushed, if the resistance on the ground is large, the cart body has a deformation folding trend, part of the push force is converted into the pressure on the front wheels, and the advancing resistance is further increased;

3) in the four-wheel folding shopping cart designed above, the distance between the vertical line of the handle part and the main wheel is too short, so that the shopping cart is easy to collide with the leg and foot parts of a user when being pushed or dragged, and the user may be injured. In order to avoid the main wheel from touching feet during walking, a user often needs to stretch the arms forwards as much as possible during pushing; when the user drags, the user often needs to incline the vehicle body and control the inclination degree of the vehicle body through arm strength, and the two ways increase the physical strength of the user.

4) No matter the two-wheel or four-wheel folding shopping cart, when the tilting cart body is pushed and pulled, the goods basket and the goods inside are also tilted, and the consequences that the goods fall or are crushed and damaged and the like can be caused.

As shown in fig. 1, in the conventional push folding vehicle, when the front wheels encounter obstacles, the vehicle body has a spontaneous folding tendency, and partial thrust acts on the front wheels, so that the obstacle crossing difficulty is increased;

as shown in fig. 2: when drawing/pushing to one side, the focus is difficult to control, increases user's physical demands, and the basket slope simultaneously, the goods probably drops or mutual extrusion.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a portable folding shopping cart with an expandable handle, wherein the foldable handle of the shopping cart is separated from the cart body, and the foldable handle is connected with the cart body through a handle hinge and a diagonal brace; the handle hinge is arranged at the bottom of the vehicle body or on a vehicle body back plate or a vehicle wheel shaft, and the handle hinge enables the foldable handle to rotate around the handle hinge; one end of the diagonal brace is fixedly connected with the vehicle body through a diagonal brace lock catch, and the other end of the diagonal brace is in limit connection with the turnover handle through a diagonal brace hinge; the limit connection enables the turnover handle to be stably connected with the vehicle body in a vertical state or a set inclination angle through a back plate buckle arranged on the vehicle body and/or a buckle arranged on the inclined stay bar and/or a turnover handle buckle.

Furthermore, a guide groove or a guide rail is arranged on the back of the vehicle body or the turnover handle and used for limiting the moving range of the limit connection of the diagonal brace.

Furthermore, one or more locking positions which can enable the turnover handle to be fixed at different angles are arranged on the guide groove or the guide rail.

Further, the diagonal brace is a single-rod, multi-rod or sheet structure.

Furthermore, the foldable handle is of a single-rod, multi-rod or door-shaped structure.

Furthermore, the foldable handle is attached to the back of the vehicle body in a folded state.

When the front wheel is pushed forwards and meets an obstacle, the front wheel can be lifted by utilizing the lever principle only by increasing the downward pressure acting on the handle, so that the purpose of crossing the obstacle is realized.

Has the advantages that: the foldable handle mechanism changes the structure and the stress state of the four-wheel foldable shopping cart during use, improves the adaptability and the obstacle crossing capability of the four-wheel foldable shopping cart to uneven road surfaces, reduces the physical consumption of users, avoids the defect of easy turnover when pushing on the uneven road surfaces, and simultaneously utilizes the handle of the inclined strut to pull the distance between the users and the cart body, avoids the legs and feet of the users being collided by the main wheels when the users walk, thereby reducing the risk of load loss and/or personnel injury.

In addition, when the four-wheel folding shopping cart is used, compared with the inclined dragging state of the common shopping cart, the goods basket is in a horizontal state under most conditions except for certain scenes such as obstacle crossing, ladder climbing and the like no matter pushing or dragging, so that the goods inside can be prevented from being squeezed mutually, or the goods placed on the top of the goods basket can be prevented from falling off.

Drawings

Fig. 1 is a schematic structural diagram of a conventional push folding cart during horizontal pushing.

Fig. 2 is a schematic structural diagram of a conventional push folding cart in a diagonal pulling manner.

Fig. 3 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 4 is a structural schematic view of a folded state of the handle in embodiment 1 of the present invention.

Fig. 5 is a schematic view of a force structure when the push is performed in embodiment 1 of the present invention.

Fig. 6 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 7 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 8, 9, 10 and 11 are schematic views of the hinge position structure of the folding handle in embodiment 4 of the present invention.

Fig. 12 and 13 are schematic views of the shape of the handle in embodiment 5 of the present invention.

Fig. 14, 15 and 16 are schematic views of three diagonal brace structures according to embodiment 6 of the utility model.

In the figure: 1-a cargo basket; 2-a foldable handle; 3-a handle hinge; 4-diagonal brace rods; 5-back plate buckling; 6-a handle buckle can be turned over; 7-diagonal bar locking; 8-diagonal bar hinges; 9-a guide or rail; a-a front wheel; b-a rear wheel; f-thrust; t-folding tendency; g, a basket and a cargo center of gravity; t2-tendency of upper cargo to fall.

Detailed Description

The process flow of the present pharmaceutical composition is further described with reference to the following specific examples.

[ example 1 ]

A portable folding shopping cart with a deployable handle is characterized in that the handle is separated from a frame, the bottom of the cart body can rotate back and forth around a fixed shaft at the bottom of the frame, and the handle can be fixed on a push rod handle at a certain angle. The push rod is in a vertical state and at a designed inclination angle, and is stably connected with the vertical frame through the support rod and the buckle. As shown in fig. 3.

The specific use cases are as follows: at ordinary times, as shown in fig. 4, the diagonal stay lock catch 7 is opened, the back plate buckle 5 and the foldable handle buckle 6 are mutually fastened, at this time, the foldable handle 2 is attached to the basket back plate, the appearance is similar to that of a common four-wheel foldable shopping cart, the purpose of saving space can be achieved, and the basket folding mechanism and the function are the prior art, so that the utility model is not repeated. When the foldable basket is pushed, the backboard buckle 5 and the foldable handle buckle 6 are unlocked, the inclined strut 4 rotates around the inclined strut hinge 8, the tail end of the inclined strut is connected with the inclined strut buckle 7 on the backboard of the basket, and the foldable handle, the backboard and the inclined strut form stable triangular connection. The resultant of the pushing force F1 exerted by the user's arm on the grip C and the natural pushing force F2 of the arm is transmitted along the foldable handle 2 to the hinge 3, resulting in a ground pressure and a forward pushing force acting mainly on the rear wheel B, as shown in fig. 5.

When the front wheel A is pushed forwards and meets an obstacle, the front wheel A can be lifted by utilizing the lever principle only by increasing the downward pressure acting on the handle C, so that the purpose of crossing the obstacle is realized.

The folding shopping cart comprises a folding basket 1 and a turnover handle 2, wherein the turnover handle 2 is connected with a basket frame near a rear wheel B through a handle hinge 3. The back of the basket and the handle are respectively provided with a back plate buckle 5 and a handle buckle 6 which can be interlocked in a folding state of the handle. One end of the diagonal brace 4 is connected to the turnover handle 2 through a diagonal brace hinge 8, and the other end of the diagonal brace is fixed on the back plate of the cargo basket 1 through a diagonal brace lock catch 7.

When the handle is folded, the inclined stay bar lock catch 7 is opened, the back plate buckle 5 and the handle buckle 6 are fastened, and the foldable handle 2 is upwards attached to the back of the cargo basket 1.

When the handle is opened, backplate buckle 5 and the unblock of handle buckle 6 can turn over a handle 2 and rotate around handle hinge 3 and open, and 4 tip of diagonal brace are fixed in on the backplate of goods basket 1 through diagonal brace hasp 7 to form firm the support.

[ example 2 ]

As shown in fig. 6, guide grooves or rails 9 may be installed on the back plate of the basket 1 to limit the range of motion of the ends of the diagonal rods 4 so that they can only move up and down along the basket back plate. Can set up one or more hasp along guide slot or guide rail, make 4 tip of diagonal brace can fix in different positions to the messenger can turn over and roll over handle 2 and obtain different apertures, satisfies the user demand of different heights.

[ example 3 ]

As shown in fig. 7, the diagonal 4 can also be installed reversely, just opposite to fig. 6, that is, one end is connected with the basket back plate through the diagonal hinge 8, and the other end is connected with the foldable handle 2 through the diagonal lock 7. In this form, the handle 2 may be provided with a guide rail/guide groove for limiting the range of movement of the end of the diagonal brace 4, and the guide rail/guide groove may also be provided with a plurality of locking positions, thereby realizing multi-stage control of the opening of the foldable handle 2.

[ example 4 ]

The lower end of the turnover handle 2 can be connected with a back plate, a bottom plate or a rear wheel axle of the cargo basket 1 through a handle hinge 3, and as shown in figure 8, the turnover handle is hinged with the back plate and the bottom plate of the cargo basket. The reversible handle is hingedly mounted to the axle as shown in fig. 9. As shown in FIG. 10, the reversible handle is hingedly mounted to the basket floor. As shown in fig. 11, the foldable handle is hingedly mounted to the basket back.

[ example 5 ]

The foldable handle 2 may be a single bar, as shown in fig. 12, or the foldable handle 2 may be a gate, as shown in fig. 13.

[ example 6 ]

As shown in fig. 14, 15 and 16, the inclined strut 4 can be deformed into various shapes such as a rod, a sheet or a triangle to ensure the stability of the support.

[ example 7 ]

An unlocking switch device can be installed at a proper position of the basket 1 or the foldable handle 2, and the inclined strut lock catch 7 on the back plate of the basket 1 or the foldable handle 2 is controlled to be opened and closed through a mechanical connecting rod or a control line, so that the aim of easy control is fulfilled.

Claims (6)

1. A portable folding shopping cart with a deployable handle is characterized in that the foldable handle of the shopping cart is separated from a cart body, and the foldable handle is connected with the cart body through a handle hinge and an inclined support rod; the handle hinge is arranged at the bottom of the vehicle body or on a vehicle body back plate or a vehicle wheel shaft, and the handle hinge enables the foldable handle to rotate around the handle hinge; one end of the diagonal brace is fixedly connected with the vehicle body through a diagonal brace lock catch, and the other end of the diagonal brace is in limit connection with the turnover handle through a diagonal brace hinge; the limit connection enables the turnover handle to be stably connected with the vehicle body in a vertical state or a set inclination angle through a back plate buckle arranged on the vehicle body and/or a buckle arranged on the inclined stay bar and/or a turnover handle buckle.

2. The portable folding shopping cart with extendable handle as claimed in claim 1, wherein a guide groove or rail is provided on the back of the cart body or the folding handle to limit the moving range of the limit connection of the diagonal brace.

3. The portable folding shopping cart with extendable handles as claimed in claim 2, wherein said guide slots or rails are provided with one or more locking positions for securing the folding handle at different angles.

4. The portable, folding shopping cart with extendable handles according to claim 1, wherein said diagonal struts are of single-bar, multi-bar or sheet construction.

5. The portable, folding shopping cart with extendable handles as claimed in claim 1 wherein said foldable handle is a single pole, multiple poles or door like structure.

6. The portable folding shopping cart with a deployable handle as claimed in claim 1, wherein the foldable handle is attached to the back of the cart body in the folded state.

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