Portable folding cart

Abstract

The utility model discloses a portable folding cart which comprises a bottom plate, a push rod and wheels, the bottom plate comprises a first side plate, a second side plate and a connecting plate, an opening is formed in the middle of the bottom plate, and the push rod is arranged in the opening. The first side plate and the second side plate are rotatably connected with the left side and the right side of the connecting plate respectively, the push rod comprises a first side rod, a second side rod and a connecting rod, and the first side rod and the second side rod are rotatably connected with the left side and the right side of the connecting rod respectively. The lower end of the first side rod is rotatably connected with the first side plate, the lower end of the second side rod is rotatably connected with the second side plate, and the lower end of the connecting rod is rotatably connected with the connecting plate. The device is rotationally folded through cooperation of the push rod and the bottom plate and the opening, so that the device is more convenient to store and carry.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cart technical field, especially a portable folding cart. BACKGROUND

[0002] A cart is a widely used transport tool designed to help people carry goods and reduce physical burden. It is usually composed of a bottom plate, wheels, and a push rod. The design of the cart varies depending on the use scenario and load requirements, but it generally has the function of improving carrying efficiency and convenient movement. With the change of social needs, many different types of carts have been developed, which have various structures and functions according to actual needs and can be applied to multiple fields such as family, industry, gardening, medical care, and retail. In order to carry goods, the traditional cart often sets a larger bottom plate and fixedly installs the push rod and the wheel structure on the bottom plate, which can be reliably used in a certain area. However, such a cart has problems when carrying and storing, as it needs to occupy more space, and it is difficult to move through narrow and uneven areas such as stairs when carrying the cart. Therefore, the cart technical field needs to propose a cart technical solution that is more convenient to carry and store. SUMMARY

[0003] In view of the above prior art, the utility model provides a portable folding cart, and the main technical problem to be solved is how to make it more convenient to carry and store.

[0004] To achieve the above purpose, the technical scheme of the utility model embodiment is as follows:

[0005] A portable folding cart includes a bottom plate, a push rod, and wheels. The bottom plate includes a first side plate, a second side plate, and a connecting plate. The bottom plate has an opening in the middle. The first side plate and the second side plate are respectively rotatably connected to the left side and the right side of the connecting plate. The push rod includes a first side rod, a second side rod, and a connecting rod. The first side rod and the second side rod are respectively rotatably connected to the left side and the right side of the connecting rod. The lower end of the first side rod is rotatably connected to the first side plate. The lower end of the second side rod is rotatably connected to the second side plate. The lower end of the connecting rod is rotatably connected to the connecting plate.

[0006] Preferably, the upper end of the first side plate and the second side plate near the connecting plate is provided with a limiting block.

[0007] Preferably, the bottom of the first side rod, the second side rod, and the connecting rod is provided with a threaded sleeve, and the threaded sleeve is threadedly connected to the bottom of the first side rod, the second side rod, and the connecting rod.

[0008] Preferably, the bottom of the threaded sleeve is provided with a gasket, and the upper surface of the bottom plate is provided with an annular groove matched with the gasket.

[0009] Preferably, the bottom of the bottom plate is provided with a receiving groove matched with the shape of the push rod and the threaded sleeve.

[0010] Preferably, the middle part of the connecting rod is provided with a rubber sleeve, and the surface of the rubber sleeve is provided with anti-skid lines.

[0011] Preferably, the upper surfaces of the first side plate, the second side plate and the connecting plate are all provided with a plurality of uniformly arranged semispherical protrusions.

[0012] The device has the advantages that: the device is provided with the push rod and the bottom plate, and the goods can be placed above the bottom plate. When the device needs to be carried or stored, the push rod is rotated to be approximately parallel to the back surface of the bottom plate, the connecting plate and the connecting rod are pulled, the first side plate and the second side plate are folded downward, the middle part of the connecting rod passes through the opening in the middle part of the bottom plate, the device is folded into a structure similar to a suitcase, and the middle part of the connecting rod can be used as a handle to be held by an operator.

[0013] In conclusion, the device is provided with the push rod and the bottom plate, and is folded by the opening, so that the device is more convenient to store and carry. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 is a structural schematic view of a portable folding cart in an embodiment of the present application;

[0015] Figure 2 Fig. 2 is a structural schematic view of a push rod part of the portable folding cart in the embodiment of the present application;

[0016] Figure 3 Fig. 3 is a structural schematic view of a completely folded state of the portable folding cart in the embodiment of the present application;

[0017] BRIEF DESCRIPTION OF DRAWINGS

[0018] 1, bottom plate; 2, push rod; 3, wheel;

[0019] 101, first side plate; 102, second side plate; 103, connecting plate; 104, opening; 105, limiting block; 106, receiving groove; 107, semispherical protrusion;

[0020] 201, first side rod; 202, second side rod; 203, connecting rod; 204, threaded sleeve; 205, washer; 206, annular groove; 207, rubber sleeve. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described further in connection with the drawings of the specification and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. In this description, the use of "some embodiments" describes a subset of all possible embodiments, however, this does not mean that "some embodiments" are a same subset or different subset relative to other embodiments, and can be combined with each other without conflict.

[0022] It is also to be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where, when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "inner", "outer", "left", "right", and similar terms as used herein are for the purpose of description only and are not intended to limit the present utility model.

[0023] Embodiment 1

[0024] Referring to the drawings Figures 1-3 The utility model provides a kind of portable folding cart, including bottom plate 1, push rod 2 and wheel 3, the bottom plate 1 includes first side plate 101, second side plate 102 and connecting plate 103, the middle part of the bottom plate 1 is provided with opening 104, the first side plate 101 and the second side plate 102 are rotatably connected with the left side and the right side of the connecting plate 103 respectively, the push rod 2 includes first side rod 201, second side rod 202 and connecting rod 203, the first side rod 201 and the second side rod 202 are rotatably connected with the left side and the right side of the connecting rod 203 respectively, the lower end of the first side rod 201 is rotatably connected with the first side plate 101, the lower end of the second side rod 202 is rotatably connected with the second side plate 102, and the lower end of the connecting rod 203 is rotatably connected with the connecting plate 103. Figure 1 The device can place goods above the bottom plate 1 by setting the push rod 2, the bottom plate 1 and the wheel 3, and transport goods by pushing the push rod 2 under the action of the wheel 3. Figure 2, the first side plate 101 and the second side plate 102 are folded downward, the middle part of the connecting rod 203 passes through the opening 104, and the folding structure of the device is shown in FIG. 4. The folding structure of the device is shown in FIG. 4. Figure 3 The device is folded into a structure similar to a suitcase, and the middle part of the connecting rod 203 can be used as a handle to be held by an operator. In summary, the device is folded by rotating the push rod 2 and the bottom plate 1 in cooperation with the opening 104, so that the device can be conveniently stored and carried.

[0025] Specifically, the first side plate 101 and the second side plate 102 are provided with a limiting block 105 at the upper end of the side close to the connecting plate 103. The limiting block 105 can limit the upward rotation of the first side plate 101 and the second side plate 102, but does not limit the downward rotation of the first side plate 101 and the second side plate 102, preventing the bottom plate 1 from sinking due to the upward rotation of the first side plate 101 and the second side plate 102 when goods are placed above the bottom plate 1, making it difficult to normally transport the goods.

[0026] Embodiment 2

[0027] Referring to FIG. 5, the folding structure of the device is shown. Figures 1-3 The difference between this embodiment and embodiment 1 is that the bottom of the first side rod 201, the second side rod 202 and the connecting rod 203 is provided with a threaded sleeve 204, and the threaded sleeve 204 is threadedly connected with the bottom of the first side rod 201, the second side rod 202 and the connecting rod 203. When the device needs to carry goods, the operator twists the threaded sleeve 204 downward to move, so that the first side rod 201, the second side rod 202 and the connecting rod 203 are fixed above the bottom plate 1, and the goods can be normally pushed and carried. When the device needs to be folded and stored or carried and transferred, the operator reversely twists the threaded sleeve 204 to move upward, so that the push rod 2 can be rotated and folded. The device is more reliable in folding and unfolding structure by providing the threaded sleeve 204.

[0028] Specifically, the bottom of the threaded sleeve 204 is provided with a gasket 205, and the upper surface of the bottom plate 1 is provided with an annular groove 206 matched with the gasket 205. The device can reduce the damage to the upper surface of the bottom plate 1 when the threaded sleeve 204 is tightened by providing the gasket 205 and the annular groove 206, and the service life of the device is improved.

[0029] Specifically, the bottom of the bottom plate 1 is provided with a storage groove 106 matched with the shape of the push rod 2 and the threaded sleeve. The device is more stable and reliable in combination of the push rod 2 and the bottom plate 1 when the device is folded by providing the storage groove 106.

[0030] Specifically, the middle part of the connecting rod 203 is provided with a rubber sleeve 207, and the surface of the rubber sleeve 207 is provided with anti-skid lines. The rubber sleeve 207 and the anti-skid lines cooperate, so that the device is more comfortable and stable when the operator holds the middle part of the connecting rod 203 to lift the device when folding.

[0031] Specifically, the upper surfaces of the first side plate 101, the second side plate 102 and the connecting plate 103 are all provided with a plurality of uniformly arranged semispherical protrusions 107. The device can reduce the shaking and sliding of the goods by arranging the semispherical protrusions 107, and further improve the reliability of the device.

[0032] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A portable folding pushchair comprising a base plate (1), a push bar (2) and wheels (3), characterised in that, The bottom plate (1) comprises a first side plate (101), a second side plate (102) and a connecting plate (103), an opening (104) is arranged in the middle of the bottom plate (1), the first side plate (101) and the second side plate (102) are rotatably connected with the left side and the right side of the connecting plate (103) respectively, the push rod (2) comprises a first side rod (201), a second side rod (202) and a connecting rod (203), the first side rod (201) and the second side rod (202) are rotatably connected with the left side and the right side of the connecting rod (203) respectively, the lower end of the first side rod (201) is rotatably connected with the first side plate (101), the lower end of the second side rod (202) is rotatably connected with the second side plate (102), and the lower end of the connecting rod (203) is rotatably connected with the connecting plate (103).

2. A portable folding stroller according to claim 1, wherein, The upper end of the first side plate (101) and the upper end of the second side plate (102) close to the connecting plate (103) are provided with limiting blocks (105).

3. A portable folding stroller according to claim 1, wherein, The bottom of the first side rod (201), the second side rod (202) and the connecting rod (203) is provided with a threaded sleeve (204), and the threaded sleeve (204) is threadedly connected with the bottom of the first side rod (201), the second side rod (202) and the connecting rod (203).

4. A portable folding stroller according to claim 3, wherein, The bottom of the threaded sleeve (204) is provided with a gasket (205), and the upper surface of the bottom plate (1) is provided with an annular groove (206) matched with the gasket (205).

5. A portable folding stroller according to claim 4, wherein, The bottom of the bottom plate (1) is provided with a receiving groove (106) matched with the shape of the push rod (2) and the threaded sleeve.

6. A portable folding stroller according to claim 1, wherein, The middle of the connecting rod (203) is provided with a rubber sleeve (207), and the surface of the rubber sleeve (207) is provided with anti-skid lines.

7. A portable folding stroller according to claim 1, wherein, The upper surfaces of the first side plate (101), the second side plate (102) and the connecting plate (103) are provided with a plurality of uniformly arranged semispherical protrusions (107).

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