Folding trolley

Abstract

The utility model discloses a folding type handcart, including: first frame, second frame, a plurality of moving wheels, folding mechanism, storage cloth bag and locking mechanism, the first frame is connected with the second frame through the folding mechanism, the moving wheels are respectively rotatingly arranged at the bottom of the first frame and the second frame, the storage cloth bag is connected with the second frame through the folding mechanism, and the locking mechanism is connected with the storage cloth bag through the folding mechanism. One end of the storage cloth bag is fixedly arranged on the first frame, and the other end of the storage cloth bag is fixedly arranged on the second frame. The utility model aims to provide the folding trolley, and the stability of the folding trolley is improved.

Description

Technical Field

[0001] This utility model relates to the field of handcart technology, and more specifically, to a folding handcart. Background Technology

[0002] Handcarts are commonly used for transporting goods in daily life, commerce, and logistics. However, traditional handcarts are mostly fixed structures, which presents several problems. First, they take up a lot of space when not in use. For example, when supermarkets are not open, numerous fixed handcarts fill the warehouse, increasing space costs. Second, their carrying capacity is fixed, which is insufficient for transporting large items, while wasting space for transporting small items.

[0003] Although foldable trolleys have emerged, their folding mechanisms are complex to operate, have poor stability after folding, are prone to accidental unfolding, and the locking mechanisms are unreliable, easily loosening after prolonged use or under external force. Furthermore, existing foldable trolleys are prone to moving in the wind, exhibiting poor stability.

[0004] Based on these shortcomings, there is an urgent need for a folding handcart that is easy to fold, can flexibly adjust its carrying space, and has reliable and stable locking. Utility Model Content

[0005] The purpose of this invention is to provide a folding handcart that improves the stability of the folding handcart.

[0006] This utility model achieves its invention objective by adopting the following technical solution:

[0007] A folding handcart, characterized in that it comprises: a first frame, a second frame, a plurality of movable wheels, a folding mechanism, a storage bag, and a locking mechanism, wherein the first frame is connected to the second frame through the folding mechanism, the movable wheels are respectively rotatably disposed at the bottom of the first frame and the second frame, one end of the storage bag is fixedly disposed on the first frame, and the other end of the bag is fixedly disposed on the second frame;

[0008] The folding mechanism includes a scissor-type folding component and a limiting component. The scissor-type folding component is used to adjust the extension distance of the storage bag, and the limiting component is used to limit the position of the scissor-type folding component.

[0009] The locking mechanism includes two sets of locking components, which are respectively disposed on the first frame and the second frame. Each locking component includes a threaded rod, a knob, and a baffle. The threaded rod is threadedly connected to the corresponding frame, the knob is fixedly disposed at the upper end of the threaded rod, and the baffle is fixedly disposed at the bottom of the threaded rod.

[0010] As a further limitation of this technical solution, the scissor-type folding assembly includes two sliding blocks and at least one set of connecting rod components. The two sliding blocks are respectively slidably disposed on the first frame and the second frame. The connecting rod components include a first connecting rod and a second connecting rod. The middle parts of the first connecting rod and the second connecting rod are rotatably connected to each other. One end of the first connecting rod is rotatably connected to the sliding block, and the other end of the first connecting rod is rotatably connected to the second frame. One end of the second connecting rod is rotatably connected to the first frame, and the other end of the second connecting rod is rotatably connected to the other sliding block.

[0011] As a further limitation of this technical solution, the limiting component includes a semi-circular rod and a set screw. The semi-circular rod is fixedly mounted on the second connecting rod, and a through hole is provided on the semi-circular rod. The set screw is threadedly connected to the through hole. A circular hole matching the through hole is provided on the first connecting rod, and the set screw can be pressed into the circular hole of the first connecting rod.

[0012] As a further limitation of this technical solution, multiple through holes are provided, and the multiple through holes are arranged in a uniform array.

[0013] As a further limitation of this technical solution, the upper part of the second frame is rotatably connected with a handrail.

[0014] As a further limitation of this technical solution, it also includes a pushing mechanism, which includes a pushing rod rotatably disposed at the bottom of the first frame near one end of the moving wheel.

[0015] As a further limitation of this technical solution, the pushing mechanism also includes a latching member, which is disposed at the upper end of the first frame and is used to limit the position of the pushing rod.

[0016] As a further limitation of this technical solution, the push rod is a telescopic structure, and its length can be adjusted according to actual conditions.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are:

[0018] 1. The locking mechanism includes two sets of locking components respectively set on the first frame and the second frame. Each locking component consists of a threaded rod, a knob and a baffle. By rotating the knob, the threaded rod is rotated so that the baffle is pressed against the ground. In windy conditions, the handcart is not easily blown by the wind. In uneven ground, it is not easily moved under the action of gravity, thus improving the stability of the handcart.

[0019] 2. The limiting component can limit the position of the scissor folding component, which allows the user to control the degree of folding when adjusting the extension distance of the trolley storage bag. The user can accurately fold the trolley to the desired size according to actual needs, reducing the possibility of changes in the distance between the first and second frames due to the scissor folding component not being securely fixed during movement.

[0020] 3. It is equipped with a pusher and a latch, making it more comfortable and effortless to push the trolley. When not in use, the pusher can be locked into the latch, saving the trolley's floor space. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0024] In the diagram: 100, first frame; 200, second frame; 210, handlebar; 300, folding mechanism; 310, first link; 320, second link; 330, sliding block; 340, limiting component; 341, semi-circular rod; 3411, through hole; 342, set screw; 400, locking component; 410, knob; 420, threaded rod; 430, baffle; 500, moving wheel; 600, push rod; 700, buckle. Detailed Implementation

[0025] The following will be based on the embodiments of this utility model. Figures 1 to 2 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0026] It should be noted that the directional terms such as left, right, up, down, front, and back in the embodiments of this utility model are only relative concepts or are based on the normal use state of the product, i.e., the direction of the product's movement, and should not be considered as limiting.

[0027] When a component is described as "located on" or "set on" another component, it can be on the other component or may be interposed with the component. When a component is described as "connected to" another component, it can be directly connected to the other component or may be interposed with the component.

[0028] Reference Figures 1 to 2 A folding handcart includes: a first frame 100, a second frame 200, a plurality of movable wheels 500, a folding mechanism 300, a storage bag, and a locking mechanism. The first frame 100 is connected to the second frame 200 through the folding mechanism 300. The movable wheels 500 are respectively rotatably disposed at the bottom of the first frame 100 and the second frame 200. One end of the storage bag is fixedly disposed on the first frame 100, and the other end of the bag is fixedly disposed on the second frame 200.

[0029] The folding mechanism 300 includes a scissor-type folding component and a limiting component 340. The scissor-type folding component is used to adjust the extension distance of the storage bag, and the limiting component 340 is used to limit the position of the scissor-type folding component.

[0030] The locking mechanism includes two sets of locking components 400, which are respectively disposed on the first frame 100 and the second frame 200. Each locking component 400 includes a threaded rod 420, a knob 410 and a baffle 430. The threaded rod 420 is threadedly connected to the corresponding frame, the knob 410 is fixedly disposed at the upper end of the threaded rod 420, and the baffle 430 is fixedly disposed at the bottom of the threaded rod 420.

[0031] Specifically, the knob 410 can be rotated, and the knob 410 drives the baffle 430 to descend through the threaded rod 420, so that the baffle 430 is pressed against the ground, preventing the trolley from moving due to uneven ground or wind, and further improving the stability of the folding trolley.

[0032] The scissor-type folding assembly includes two sliding blocks 330 and at least one set of connecting rod components. The two sliding blocks 330 are slidably disposed on the first frame 100 and the second frame 200, respectively. The connecting rod components include a first connecting rod 310 and a second connecting rod 320. The middle parts of the first connecting rod 310 and the second connecting rod 320 are rotatably connected to each other. One end of the first connecting rod 310 is rotatably connected to the sliding block 330, and the other end of the first connecting rod 310 is rotatably connected to the second frame 200. One end of the second connecting rod 320 is rotatably connected to the first frame 100, and the other end of the second connecting rod 320 is rotatably connected to the other sliding block 330.

[0033] The limiting component 340 includes a semi-circular rod 341 and a set screw 342. The semi-circular rod 341 is fixedly mounted on the second connecting rod 320. A through hole 3411 is provided on the semi-circular rod 341. The set screw 342 is threadedly connected to the through hole 3411. A circular hole matching the through hole 3411 is provided on the first connecting rod 310. The set screw 342 can abut inside the circular hole of the first connecting rod 310.

[0034] Specifically, when adjusting the distance between the first frame 100 and the second frame 200, the first connecting rod 310 drives the corresponding sliding block 330 to slide on the first frame 100, and the second connecting rod 320 drives the corresponding sliding block 330 to slide on the second frame 200. The middle parts of the first connecting rod 310 and the second connecting rod 320 rotate relative to each other. After adjusting the storage bag to a suitable size, the set screw 342 is screwed into the through hole 3411 of the semi-circular rod 341, so that the set screw 342 is pressed into the round hole of the first connecting rod 310, locking the first connecting rod 310 and the second connecting rod 320 so that they cannot rotate relative to each other. This reduces the possibility of changes in the distance between the first frame 100 and the second frame 200 due to insecure locking during the movement of the handcart, thus improving stability.

[0035] Multiple through holes 3411 are provided, and the multiple through holes 3411 are arranged in a uniform array.

[0036] Specifically, when the storage bag is unfolded to different lengths, the distance between the first frame 100 and the second frame 200 changes, which in turn causes the position where the first link 310 and the second link 320 are connected to rotate relative to each other. During the rotation, the through hole 3411 of the second link 320 that is adapted to the round hole on the first link 310 changes continuously. Setting multiple evenly arrayed through holes 3411 can accommodate more unfolded sizes of the storage bag.

[0037] The upper part of the second frame 200 is rotatably connected to a handrail 210.

[0038] Specifically, the handcart can be moved by pulling the handle 210, improving convenience.

[0039] It also includes a pushing mechanism, which includes a pushing rod 600, which is rotatably disposed at the bottom of the first frame 100 near one end of the moving wheel 500.

[0040] The pushing mechanism also includes a latching member 700, which is disposed at the upper end of the first frame 100 and is used to limit the position of the push rod 600.

[0041] The push rod 600 is a telescopic structure, and its length can be adjusted according to actual conditions.

[0042] Specifically, when the handcart needs to be moved, the push rod 600 is pulled out from the buckle 700, the push rod 600 is adjusted to a suitable length, and then the handcart is pushed to move. The angle between the push rod 600 and the first frame 100 can be changed, thereby improving the comfort of pushing and saving physical strength.

[0043] In summary, the implementation principle of this utility model is as follows:

[0044] In use, place the trolley on a relatively flat surface. Adjust the distance between the first frame 100 and the second frame 200 according to the amount and size of items to be placed, thereby changing the length of the storage bag. The storage bag is made of cloth and can be compressed and unfolded. When adjusting the distance between the first frame 100 and the second frame 200, the first connecting rod 310 drives the corresponding sliding block 330 to slide on the first frame 100, and the second connecting rod 320 drives the corresponding sliding block 330 to slide on the second frame 200. The middle parts of the first connecting rod 310 and the second connecting rod 320 rotate relative to each other. After adjusting the storage bag to the appropriate size, screw the set screw 342 into the through hole 3411 of the semi-circular rod 341, so that the set screw 342 is pressed into the round hole of the first connecting rod 310, locking the first connecting rod 310 and the second connecting rod 320 so that they cannot rotate relative to each other. This reduces the possibility of changes in the distance between the first frame 100 and the second frame 200 due to insecure locking during the movement of the trolley, thus improving stability.

[0045] When the trolley needs to be moved, the push rod 600 is pulled out from the buckle 700. After adjusting the push rod 600 to a suitable length, the trolley is pushed to move. The angle between the push rod 600 and the first frame 100 can be changed, thereby improving the comfort of pushing and saving physical strength. After moving to a suitable position, the knob 410 can be turned. The knob 410 drives the baffle 430 to descend through the threaded rod 420, so that the baffle 430 is pressed against the ground, preventing the trolley from moving due to uneven ground or wind, and further improving the stability of the folding trolley.

[0046] The above-disclosed embodiments are merely specific examples of this utility model. However, this utility model is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A folding handcart, characterized in that, include: The vehicle comprises a first frame (100), a second frame (200), multiple casters (500), a folding mechanism (300), a storage bag, and a locking mechanism. The first frame (100) is connected to the second frame (200) via the folding mechanism (300). The casters (500) are rotatably mounted on the bottom of the first frame (100) and the second frame (200), respectively. One end of the storage bag is fixedly mounted on the first frame (100), and the other end of the bag is fixedly mounted on the second frame (200). The folding mechanism (300) includes a scissor-type folding component and a limiting component (340). The scissor-type folding component is used to adjust the extension distance of the storage bag, and the limiting component (340) is used to limit the position of the scissor-type folding component. The locking mechanism includes two sets of locking components (400), which are respectively disposed on the first frame (100) and the second frame (200). Each locking component (400) includes a threaded rod (420), a knob (410), and a baffle (430). The threaded rod (420) is threadedly connected to the corresponding frame. The knob (410) is fixedly disposed at the upper end of the threaded rod (420), and the baffle (430) is fixedly disposed at the bottom of the threaded rod (420).

2. A folding handcart according to claim 1, characterized in that: The scissor-type folding assembly includes two sliding blocks (330) and at least one set of connecting rod components. The two sliding blocks (330) are slidably disposed on the first frame (100) and the second frame (200), respectively. The connecting rod components include a first connecting rod (310) and a second connecting rod (320). The middle parts of the first connecting rod (310) and the second connecting rod (320) are rotatably connected to each other. One end of the first connecting rod (310) is rotatably connected to the sliding block (330), and the other end of the first connecting rod (310) is rotatably connected to the second frame (200). One end of the second connecting rod (320) is rotatably connected to the first frame (100), and the other end of the second connecting rod (320) is rotatably connected to the other sliding block (330).

3. A folding handcart according to claim 2, characterized in that: The limiting component (340) includes a semi-circular rod (341) and a set screw (342). The semi-circular rod (341) is fixedly mounted on the second connecting rod (320). A through hole (3411) is provided on the semi-circular rod (341). The set screw (342) is threadedly connected to the through hole (3411). A circular hole matching the through hole (3411) is provided on the first connecting rod (310). The set screw (342) can be pressed into the circular hole of the first connecting rod (310).

4. A folding handcart according to claim 3, characterized in that: Multiple through holes (3411) are provided, and the multiple through holes (3411) are arranged in a uniform array.

5. A folding handcart according to claim 1, characterized in that: The upper part of the second frame (200) is rotatably connected to a handrail (210).

6. A folding handcart according to claim 1, characterized in that: It also includes a pushing mechanism, which includes a push rod (600) that is rotatably disposed at the bottom of the first frame (100) near one end of the moving wheel (500).

7. A folding handcart according to claim 6, characterized in that: The pushing mechanism further includes a latching member (700) disposed at the upper end of the first frame (100), and the latching member (700) is used to limit the position of the push rod (600).

8. A folding handcart according to claim 7, characterized in that: The push rod (600) is a telescopic structure, and its length can be adjusted according to actual conditions.

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