Foldable multifunctional cart

Abstract

The foldable multifunctional cart comprises a front bar and a rear bar, the outer portions of the front bar and the rear bar are fixedly connected with vertical frames, a handrail pull rod is arranged on the outer portion of the front bar, wheel sets are arranged at the bottoms of the two vertical frames, and connecting mechanisms are arranged on the sides, close to each other, of the two vertical frames. The connecting mechanism comprises a front side rod and a rear side rod which are rotationally connected with the two vertical frames respectively, the end of the rear side rod is fixedly connected with a shaft seat corresponding to the front side rod, and the bottom of the front bar and the bottom of the rear bar are rotationally connected with a front connecting rod and a rear connecting rod respectively. Through mutual cooperation of the connecting mechanism, the handrail pull rod and the wheel sets, when the cart is not used, the cart can be folded, the cart is high in stability, not prone to toppling over, small in occupied space and convenient to store, the cart bottom face structure can be unfolded and expanded in the using process, the cart can be used as a seat, and the cart can be matched with a cloth cover to carry goods. Functionality is high, and a user can flexibly use the device according to needs.

Description

Technical Field

[0001] This utility model relates to the field of trolley technology, specifically a foldable multi-functional trolley. Background Technology

[0002] A trolley is a portable means of transportation, typically used for carrying goods or cargo. They can be used in various settings, such as shopping malls, supermarkets, warehouses, and homes. Trolleys are widely used in production and daily life because they are inexpensive to manufacture, easy to maintain, convenient to operate, and lightweight. They can work in places where motor vehicles are inconvenient to use and are particularly convenient for transporting lighter items over short distances.

[0003] However, the existing handcarts, although the handles can be folded towards the base for storage, take up a lot of space when stored because the base occupies a large area. Therefore, they are often stored upright. However, when upright, only the two corners at the ends of the handcart touch the ground, making it easy to tip over.

[0004] Therefore, we propose to design a foldable multi-functional trolley. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A foldable multi-functional trolley includes a front bar and a rear bar. The front bar and the rear bar are both fixedly connected to the outside of the uprights. The front bar is provided with a handle bar. The bottom of the two uprights is provided with wheel sets. The two uprights are provided with a connecting mechanism on the side that is close to each other.

[0008] The connecting mechanism includes a front side rod and a rear side rod that are rotatably connected to the two uprights respectively. The end of the rear side rod is fixedly connected to a bearing corresponding to the front side rod. The bottom of the front and rear bumpers are rotatably connected to a front connecting rod and a rear connecting rod respectively. A folding frame is provided in the middle of the front and rear connecting rods. A sleeve is fixedly connected to the top of the front and rear connecting rods. A front support rod is fixedly connected between the two front side rods. A rear support rod is fixedly connected between the two bearings.

[0009] As a preferred embodiment of the foldable multi-functional trolley described in this utility model, a fabric cover is provided between the two uprights. Zippers are provided on both sides of the fabric cover. Velcro is fixedly connected to the bottom of the outer side of the fabric cover. A handle is fixedly connected to the center of the bottom of the inner side of the fabric cover. The Velcro is connected to the front support rod and the rear support rod respectively. By installing the fabric cover, it is convenient to carry and transport goods. When the zipper is pulled down, the fabric piece between the two zippers can be put down to open the two sides, which can be used as a seat for the user to sit on.

[0010] As a preferred embodiment of the foldable multi-functional trolley described in this utility model, the wheel set includes self-locking swivel wheels and wheels. The self-locking swivel wheels are located at the bottom of the front bumper, and the wheels are located at the bottom of the rear bumper, which facilitates the flexibility of pulling the trolley. The self-locking swivel wheels are close to the handlebar, which makes it easy for the user to turn the trolley when pulling it.

[0011] As a preferred embodiment of the foldable multi-functional trolley described in this utility model, the end of the front rod is located inside the axle seat and rotatably connected to its inner wall, which facilitates the formation of a folding connection between the front rod and the rear rod. The limiting structure at the top of the axle seat makes it easy to make the front rod and the rear rod horizontally arranged, which helps to maintain the stability of the trolley structure.

[0012] In a preferred embodiment of the foldable multi-functional trolley described in this utility model, the sleeve at the top of the front connecting rod is fitted onto the outside of the rear support rod and rotatably connected thereto, and the sleeve at the top of the rear connecting rod is fitted onto the outside of the front support rod and rotatably connected thereto, which facilitates the folding of the trolley connecting mechanism in conjunction with the front and rear side rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model, through the cooperation of the connecting mechanism, the handrail rod and the wheel set, allows the trolley to be folded when not in use. It is not only highly stable and not easy to tip over, but also does not take up space and is easy to store. When in use, the bottom structure of the trolley can be unfolded and expanded, which can be used as a seat or with the addition of a cloth cover for pulling goods. It is highly functional and allows users to use it flexibly according to their needs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the structure of a foldable multi-functional trolley according to the present invention;

[0017] Figure 2 This is a top view of the connecting mechanism of a foldable multi-functional trolley according to the present invention;

[0018] Figure 3 This is a bottom schematic diagram of the connecting mechanism of a foldable multi-functional trolley according to the present invention;

[0019] Figure 4 This is a schematic diagram showing the installation position of the cloth cover for a foldable multi-functional trolley according to this utility model;

[0020] Figure 5 This is a schematic diagram of the outer bottom surface structure of the cloth cover of a foldable multi-functional trolley according to the present invention;

[0021] Figure 6 This is a folding diagram of the connecting mechanism of a foldable multi-functional trolley according to this utility model.

[0022] Legend: 1. Front bumper; 2. Rear bumper; 3. Stand; 301. Fabric cover; 302. Zipper; 4. Handrail rod; 5. Wheel set; 6. Connecting mechanism; 7. Front side rod; 8. Rear side rod; 9. Axle seat; 10. Front connecting rod; 11. Rear connecting rod; 12. Folding frame; 13. Sleeve; 14. Front support rod; 15. Rear support rod. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-6 This utility model provides a foldable multi-functional trolley, including a front bar 1 and a rear bar 2, both of which are fixedly connected to a stand 3.

[0027] In this embodiment, a fabric cover 301 is provided between the two uprights 3. Zippers 302 are provided on both sides of the fabric cover 301. Velcro 303 is fixedly connected to the bottom of the outer side of the fabric cover 301. A handle 304 is fixedly connected to the center of the bottom of the inner side of the fabric cover 301. Velcro 303 is correspondingly connected to the front support rod 14 and the rear support rod 15. By installing the fabric cover 301, it is convenient to carry and transport goods. When the zipper 302 is pulled down, the fabric piece between the two zippers 302 can be put down to open the sides, which can be used as a seat for users to sit on.

[0028] The front bumper 1 is equipped with a handlebar 4 on the outside, and the bottom of the two uprights 3 is equipped with wheel sets 5. The wheel sets 5 include self-locking casters and wheels. The self-locking casters are located at the bottom of the front bumper 1, and the wheels are located at the bottom of the rear bumper 2, which facilitates the flexibility of pulling the vehicle. The self-locking casters are close to the handlebar 4, which makes it easy for the user to turn when pulling the vehicle.

[0029] A connecting mechanism 6 is provided on the side of the two uprights 3 that are close to each other.

[0030] The connecting mechanism 6 includes a front rod 7 and a rear rod 8 that are rotatably connected to the two uprights 3 respectively. The rear rod 8 is fixedly connected to a bearing 9 corresponding to the front rod 7. The bottom of the front bumper 1 and the rear bumper 2 are rotatably connected to a front connecting rod 10 and a rear connecting rod 11 respectively. A folding frame 12 is provided in the middle of the front connecting rod 10 and the rear connecting rod 11. A sleeve 13 is fixedly connected to the top of the front connecting rod 10 and the rear connecting rod 11. A front support rod 14 is fixedly connected between the two front rods 7. A rear support rod 15 is fixedly connected between the two bearings 9.

[0031] The end of the front rod 7 is located inside the bearing seat 9 and is rotatably connected to its inner wall, which facilitates the formation of a folded connection between the front rod 7 and the rear rod 8. The limiting structure at the top of the bearing seat 9 makes it easy to set the front rod 7 and the rear rod 8 horizontally, which helps to maintain the stability of the trolley structure.

[0032] Meanwhile, the sleeve 13 at the top of the front connecting rod 10 is sleeved on the outside of the rear support rod 15 and rotatably connected to it, and the sleeve 13 at the top of the rear connecting rod 11 is sleeved on the outside of the front support rod 14 and rotatably connected to it, so as to facilitate the folding of the trolley connecting mechanism 6 in conjunction with the front side rod 7 and the rear side rod 8.

[0033] When the trolley is in the unfolded state, the front rod 7 and the rear rod 8 remain horizontal under the connection of the axle seat 9. At this time, the top of the connecting mechanism 6 is horizontal, and goods can be stored on its top.

[0034] When storing goods, the outer cover 301 can be used. After the cloth cover 301 is installed around the perimeter, the goods can be restricted and the load-bearing capacity of the trolley can be increased.

[0035] When the trolley is not in use, the zipper 302 can be pulled to remove the fabric piece in the middle of the cover 301, which can be used as a seat for the user. The two sets of Velcro 304 at the bottom of the cover 301 can be tied and fixed to the front support rod 14 and the rear support rod 15 respectively. Simply pull the handle 304 at the bottom inside the cover 301 to deform the front support rod 14 and the rear support rod 15 to complete the folding and folding of the trolley.

[0036] When folding, pull the front support rod 14 and the rear support rod 15 upwards to make the front side rod 7 rotate in the axle seat 9. At this time, the two wheel sets 5 move closer to each other, and the trolley is folded, which can save space and make it easier for users to carry.

[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A foldable multi-functional trolley, comprising a front bumper (1) and a rear bumper (2), characterized in that, The front bumper (1) and the rear bumper (2) are both fixedly connected to the outside of the uprights (3). The front bumper (1) is provided with a handrail rod (4). The bottom of the two uprights (3) is provided with a wheel set (5). The two uprights (3) are provided with a connecting mechanism (6) on the side that is close to each other. The connecting mechanism (6) includes a front rod (7) and a rear rod (8) that are rotatably connected to the two uprights (3). The rear rod (8) is fixedly connected to a bearing (9) corresponding to the front rod (7). The front bumper (1) and the rear bumper (2) are rotatably connected to a front connecting rod (10) and a rear connecting rod (11) respectively. The front connecting rod (10) and the rear connecting rod (11) are provided with a folding frame (12) in the middle. The front connecting rod (10) and the rear connecting rod (11) are fixedly connected to a sleeve (13) at the top. The two front rods (7) are fixedly connected to a front support rod (14). The two bearings (9) are fixedly connected to a rear support rod (15).

2. The foldable multi-functional trolley according to claim 1, characterized in that, A fabric cover (301) is provided between the two uprights (3). Zippers (302) are provided on both sides of the fabric cover (301). Velcro (303) is fixedly connected to the bottom of the outer side of the fabric cover (301). A handle (304) is fixedly connected to the center of the bottom of the inner side of the fabric cover (301). The Velcro (303) is correspondingly connected to the front support rod (14) and the rear support rod (15).

3. The foldable multi-functional trolley according to claim 1, characterized in that, The wheel set (5) includes a self-locking swivel wheel and a wheel, the self-locking swivel wheel being located at the bottom of the front bumper (1) and the wheel being located at the bottom of the rear bumper (2).

4. A foldable multi-functional trolley according to claim 1, characterized in that, The end of the front rod (7) is located inside the bearing seat (9) and is rotatably connected to its inner wall.

5. A foldable multi-functional trolley according to claim 1, characterized in that, The sleeve (13) at the top of the front connecting rod (10) is sleeved on the outside of the rear support rod (15) and rotatably connected thereto. The sleeve (13) at the top of the rear connecting rod (11) is sleeved on the outside of the front support rod (14) and rotatably connected thereto.

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