A collapsible shopping cart

Abstract

The utility model discloses a kind of foldable shopping carts, it is related to shopping cart technical field.Shopping cart includes folding mechanism and contraction mechanism.Folding mechanism includes left side plate, bottom plate and right side plate, three are connected by hinge rotation.Limiting component is included in contraction mechanism, sliding sleeve, sliding rod set in it and for locking sliding rod.Contraction mechanism also includes shell, gyro wheel and belt, the bottom of sliding rod is fixedly connected to belt, belt is around gyro wheel transmission.The utility model solves the problem that existing shopping cart structure is fixed, occupies space and is inconvenient to carry, and it is folded into compact form and can be reliably locked by the cooperation of folding mechanism and lock catch mechanism, saves storage space, and the height of sliding rod is conveniently adjusted by contraction mechanism, improve use comfort.

Description

Technical Field

[0001] This utility model relates to the field of shopping cart technology, and in particular to a foldable shopping cart. Background Technology

[0002] Shopping carts, as a common daily auxiliary tool, provide great convenience for people in everyday shopping and carrying items. By setting up a box to hold items and wheels at the bottom, they effectively reduce the user's burden and are widely used in homes and commercial places.

[0003] However, with the accelerating pace of urban life and increasingly compact living spaces, the inherent structural flaws of traditional shopping carts are becoming increasingly apparent. To ensure load-bearing strength, most shopping carts use a one-piece rigid structure for both the box and frame, resulting in a large and unchangeable overall size. While this design is not problematic during use, its bulky size causes considerable inconvenience when not in use, whether stored at home or while traveling.

[0004] Specifically, when users return home after shopping, finding a suitable storage location for their empty shopping carts is undoubtedly a challenge for families with limited living space. Often, the carts end up sitting idle in a corner, which is both unsightly and takes up valuable space. Similarly, in scenarios where people shop by car, placing a fixed-size shopping cart in the trunk occupies a significant amount of usable cargo space, reducing the vehicle's loading efficiency. This contradiction—offering convenience when in use but creating storage and carrying burdens when not in use—has become a problem that current shopping cart technology urgently needs to solve.

[0005] Therefore, this utility model proposes a foldable shopping cart to address the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of existing foldable shopping carts, such as fixed structure, large size, and inconvenience in carrying and occupying storage space when not in use, this utility model aims to provide a foldable shopping cart with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a foldable shopping cart, including a folding mechanism and a retracting mechanism; the folding mechanism includes a left side panel, a base plate rotatably connected to the bottom of the left side panel via a hinge, and a right side panel rotatably connected to the base plate on the side away from the left side panel via a hinge; the retracting mechanism includes a sliding sleeve, a pull rod slidably disposed within the sliding sleeve, and a limiting component disposed on the sliding sleeve for locking the pull rod; the foldable shopping cart also includes a locking mechanism for locking and securing the left side panel and the right side panel after the folding mechanism is folded.

[0008] Furthermore, the retraction mechanism also includes a housing, a roller and a belt disposed inside the housing, the bottom of the pull rod is fixedly connected to the belt, and the belt drives the roller around the pull rod. Through the fixed connection between the pull rod and the belt, the sliding sleeve is driven to slide synchronously when the pull rod is pulled out.

[0009] Preferably, the folding mechanism further includes movable plates that are rotatably connected to the outside of the left and right side plates, respectively.

[0010] Preferably, the folding mechanism further includes a limiting block detachably disposed between the bottom plate and the right side plate, and a pocket disposed on the right side plate for storing the limiting block.

[0011] Preferably, the foldable shopping cart further includes a handle, which is fixed to the upper part of the right side panel.

[0012] Preferably, the shrinking mechanism further includes a fixing block and a shaft seat, the bottom of the shrinking mechanism is fixed inside the shaft seat, and the shaft seat is detachably snapped into the fixing block.

[0013] Preferably, the limiting component includes a buckle and a spring, one end of the buckle is pivotally connected to the sliding sleeve, and the spring abuts against the other end of the buckle and the sliding sleeve; the outer wall of the pull rod is provided with a groove that matches the buckle.

[0014] Preferably, the locking mechanism includes a fixing plate fixed to the left side plate and a limiting plate fixed to the right side plate; a locking rod is slidably disposed on the fixing plate, the locking rod is driven by the handle and can be slidably engaged in the limiting plate.

[0015] Preferably, the locking mechanism further includes a movable rod and a second spring. The movable rod is slidably disposed on the fixed plate and located between the locking rod and the handle. The second spring is sleeved on the outside of the movable rod and is used to reset the locking rod after the handle is released.

[0016] Preferably, the locking mechanism further includes a latch, which is pivotally mounted on the fixed plate to prevent the locking rod from disengaging from the fixed plate under the action of a spring force.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model solves the problems of existing shopping carts being fixed in structure, bulky in size, occupying a lot of storage space when not in use, and inconvenient to carry by setting up a folding mechanism consisting of a left side plate, a bottom plate, and a right side plate connected by hinges, and cooperating with a locking mechanism that can lock the cart body after folding. It achieves the technical effect of enabling the shopping cart to be folded into a compact shape and reliably locked, greatly saving storage space, and making it convenient for users to carry with the handle.

[0019] 2. This utility model solves the problem that the traditional shopping cart handle has a fixed height, which cannot adapt to users of different heights and thus leads to a poor user experience, by setting a retractable pull rod, a sliding sleeve and a limiting component that can lock the pull rod in different positions. The new utility model allows users to conveniently adjust the length of the pull rod according to their own height, thereby improving the comfort and ergonomics of use.

[0020] 3. This utility model solves the problems of insufficient stability of foldable structures when unfolded and easy loss of disassembled small parts by setting detachable limiting blocks to fix the cart body structure when unfolded, and designing a pocket specifically for storing the limiting blocks. It achieves the technical effect of ensuring the stability and reliability of the shopping cart structure when unfolded, while avoiding the risk of losing key parts, thus improving the overall reliability and ease of use of the product. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a foldable shopping cart proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the retraction mechanism of a foldable shopping cart proposed in this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0025] Legend:

[0026] 1. Left side panel;

[0027] 2. Retraction mechanism; 21. Fixing block; 22. Shaft seat; 23. Roller; 24. Housing; 25. Belt; 26. Limiting component; 261. Buckle; 262. Spring 1; 27. Sliding sleeve; 28. Pull rod;

[0028] 3. Locking mechanism; 31. Limiting plate; 32. Fixing plate; 33. Lock; 34. Locking rod; 35. Handle; 36. Movable rod; 37. Spring 2;

[0029] 4. Folding mechanism; 41. Base plate; 42. Right side plate; 43. Handle; 44. Pocket; 45. Hinge; 46. Movable plate; 47. Limiting block. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] Example:

[0032] Please refer to Figures 1 to 4 This utility model provides a foldable shopping cart, which aims to solve the problems of existing shopping carts having a fixed structure, large size, which occupy storage space and are inconvenient to carry, and fixed handle height which makes it difficult to adapt to users of different heights.

[0033] like Figure 1 and Figure 2 As shown, the foldable shopping cart includes a folding mechanism 4 and a retracting mechanism 2. The folding mechanism 4 is used to fold and unfold the shopping cart body, and the retracting mechanism 2 is used to adjust the overall height of the shopping cart. The folding mechanism 4 includes a left side plate 1, a bottom plate 41, and a right side plate 42. The bottom plate 41 is rotatably connected to the bottom of the left side plate 1 via a hinge 45, and the right side plate 42 is rotatably connected to the side of the bottom plate 41 away from the left side plate 1 via a hinge 45, thus forming the basic structure of the foldable box body. The retracting mechanism 2 includes a sliding sleeve 27 and a pull rod 28 slidably disposed inside the sliding sleeve 27. The sliding sleeve 27 is also provided with a locking mechanism for the pull rod. The shopping cart further includes a locking mechanism 3, which locks and holds the left side panel 1 and the right side panel 42 in place after the folding mechanism 4 is folded, so as to maintain the compact folded state of the shopping cart. The retraction mechanism 2 is also equipped with a transmission structure, which includes a housing 24, a roller 23 and a belt 25 disposed inside the housing 24. The bottom of the pull rod 28 is fixedly connected to the belt 25, and the belt 25 drives the roller 23. This design allows the sliding sleeve 27 to be synchronously extended or shortened when the pull rod 28 is pulled out or pushed in.

[0034] Reference Figure 1 , Figure 3 and Figure 4The folding mechanism 4 also includes movable plates 46 that are rotatably connected to the outer sides of the left side plate 1 and the right side plate 42 via hinges, and a limiting block 47 detachably disposed between the bottom plate 41 and the right side plate 42. When the shopping cart is unfolded, the limiting block 47 supports and locks the bottom plate 41 and the right side plate 42 to prevent accidental folding. When folding is required, the limiting block 47 is pulled out, then the bottom plate 41 folds upwards, and the movable plates 46 on both sides fold inwards, thereby minimizing the storage width of the shopping cart. For easy carrying and storage, a handle 43 is fixed to the upper part of the right side plate 42, and a pocket 44 is provided on the outer wall of the right side plate 42 for storing the pulled-out limiting block 47. Meanwhile, the locking mechanism 3 includes a fixed plate 32 fixed to the left side plate 1, and a limiting plate 31 fixed to the right side plate 42 and corresponding to the fixed plate 32. The fixed plate 32 slides upwards... A locking lever 34 is provided, which is driven by a handle 35. The handle 35 is linked to the locking lever 34 via a movable rod 36. The movable rod 36 is slidably mounted on the fixed plate 32 and located between the locking lever 34 and the handle 35. A second spring 37 is sleeved on the outside of the movable rod 36. When the handle 35 is pressed, the handle 35 pushes the movable rod 36 and compresses the second spring 37, thereby driving the locking lever 34 to slide towards the limiting plate 31 and finally being pluggably engaged in the limiting plate 31. After the handle 35 is released, the second spring 37 returns to its original position, pushing the locking lever 34 to maintain the locked state. To ensure the stability of the locking lever 34, a latch 33 is also pivotally mounted on the fixed plate 32. The latch 33, under the action of the spring force, limits the locking lever 34 to the fixed plate 32, preventing it from accidentally disengaging. This combination of folding and latching mechanisms ensures that the shopping cart can be reliably locked into a compact form after folding, solving the problem of large space occupation when not in use.

[0035] As a preferred embodiment, refer to Figure 2 The shrinking mechanism 2 also includes a fixing block 21 and a bearing 22. The bottom of the shrinking mechanism 2 is fixed inside the bearing 22, while the bearing 22 is detachably snapped into the fixing block 21. The fixing block 21 is fixedly connected to the bottom plate 41 of the shopping cart. This structural design allows the entire shrinking mechanism 2 to be stably fixed to the cart body, and at the same time, it is easy to disassemble and maintain when needed.

[0036] As a preferred embodiment, refer to Figure 3 The specific structure of the limiting component 26 is as follows: it includes a buckle 261 and a spring 262. One end of the buckle 261 is pivotally connected to the sliding sleeve 27, and the spring 262 abuts against the other end of the buckle 261 and the sliding sleeve 27. The outer wall of the pull rod 28 is provided with multiple slots that are adapted to the buckle 261. The lock can be released by pressing the buckle 261 to overcome the elastic force of the spring 262. After being released, the buckle 261 automatically engages into the nearest slot under the action of the spring 262, thereby achieving reliable fixation of the pull rod 28 at different extension positions.

[0037] The working principle is as follows:

[0038] When the shopping cart is needed, first unfold the folding mechanism 4 and insert the limiting block 47 between the base plate 41 and the right side plate 42 for limiting and fixing. Then press the buckle 261 of the upper limit component 26 of the retraction mechanism 2. The buckle 261 squeezes the spring 262 at its bottom and pivots, causing the top of the buckle 261 to lift up and disengage from the slot outside the pull rod 28. At this time, pull the pull rod 28 upward, and the pull rod 28 slides out from the inside of the sliding sleeve 27. Since the bottom of the pull rod 28 is fixedly connected to one side of the belt 25 inside the outer shell 24, the movement of the pull rod 28 will drive the belt 25 to slide around the roller 23, thereby driving the sliding sleeve 27 to slide upward as a whole, so that the shopping cart is extended as a whole. After pulling the pull rod 28 to the appropriate height, release the buckle 261. The spring 262 returns to its original position and pushes the buckle 261 into the corresponding slot, thus completing the height adjustment to suit different users.

[0039] When not in use and needs to be folded for storage, first operate the limiting component 26 to fully retract the pull rod 28 into the sliding sleeve 27, shrinking the overall length of the shrinking mechanism 2. The bottom bearing 22 can be squeezed and locked inside the fixing block 21. Then, pull the limiting block 47 out of the folding mechanism 4 and put it into the pocket 44 on the right side plate 42 for storage. Next, lift the bottom plate 41 from the end of the right side plate 42 and fold it upwards, and fold the movable plates 46 on both sides inwards. Finally, operate the locking mechanism 3. Press the handle 35. The handle 35 drives the locking rod 34 and squeezes the movable rod 36 and the second spring 37, causing the locking rod 34 to slide into the slot in the limiting plate 31 fixed to the right side plate 42. After releasing the handle, the second spring 37 returns to its original position and firmly squeezes the locking rod 34 into the slot in the limiting plate 31. At the same time, the latch 33 fixed to the fixing plate 32 on the left side plate 1 fixes the locking rod 34 under the action of the spring force to prevent it from falling off accidentally. After the folding and locking is completed, the shopping cart can be lifted away through the handle 43 on the right side plate 42.

Claims

1. A foldable shopping cart, comprising: Folding mechanism (4), the folding mechanism (4) includes a left side plate (1), a bottom plate (41) rotatably connected to the bottom of the left side plate (1), and a right side plate (42) rotatably connected to the side of the bottom plate (41) away from the left side plate (1). The left side plate (1), the bottom plate (41) and the right side plate (42) are connected by a hinge (45). The retraction mechanism (2) includes a sliding sleeve (27), a pull rod (28) slidably disposed in the sliding sleeve (27), and a limiting component (26) disposed on the sliding sleeve (27) for locking the pull rod (28); The shopping cart is characterized in that it further includes a locking mechanism (3), which is used to lock and hold the left side panel (1) and the right side panel (42) together after the folding mechanism (4) is folded. Furthermore, the retraction mechanism (2) also includes a housing (24), a roller (23) disposed inside the housing (24), and a belt (25). The bottom of the pull rod (28) is fixedly connected to the belt (25). The belt (25) drives the roller (23) to move synchronously when the pull rod (28) is pulled out.

2. A foldable shopping cart according to claim 1, characterized in that, The folding mechanism (4) further includes movable plates (46) that are rotatably connected to the outside of the left side plate (1) and the right side plate (42), respectively.

3. A foldable shopping cart according to claim 1, characterized in that, The folding mechanism (4) further includes a limiting block (47) detachably disposed between the bottom plate (41) and the right side plate (42), and a pocket (44) disposed on the right side plate (42) for storing the limiting block (47).

4. A foldable shopping cart according to claim 1, characterized in that, It also includes a handle (43), which is fixed to the upper part of the right side plate (42).

5. A foldable shopping cart according to claim 1, characterized in that, The shrinking mechanism (2) further includes a fixing block (21) and a bearing seat (22). The bottom of the shrinking mechanism (2) is fixed inside the bearing seat (22), and the bearing seat (22) is detachably snapped into the fixing block (21).

6. A foldable shopping cart according to claim 1, characterized in that, The limiting component (26) includes a buckle (261) and a spring (262). One end of the buckle (261) is pivotally connected to the sliding sleeve (27), and the spring (262) abuts against the other end of the buckle (261) and the sliding sleeve (27). The outer wall of the pull rod (28) is provided with a slot that matches the buckle (261).

7. A foldable shopping cart according to claim 1, characterized in that, The locking mechanism (3) includes a fixing plate (32) fixed to the left side plate (1) and a limiting plate (31) fixed to the right side plate (42); a locking rod (34) is slidably disposed on the fixing plate (32), the locking rod (34) is driven by the handle (35) and is slidably engaged in the limiting plate (31).

8. A foldable shopping cart according to claim 7, characterized in that, The locking mechanism (3) further includes a movable rod (36) and a second spring (37). The movable rod (36) is slidably disposed on the fixed plate (32) and located between the locking rod (34) and the handle (35). The second spring (37) is sleeved on the outside of the movable rod (36) and is used to reset the locking rod (34) after the handle (35) is released.

9. A foldable shopping cart according to claim 7, characterized in that, The locking mechanism (3) further includes a latch (33), which is pivotally mounted on the fixed plate (32) to prevent the locking rod (34) from disengaging from the fixed plate (32) under the action of spring force.

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