Supermarket shopping cart foldable hinge structure

Abstract

The utility model relates to the field of shopping cart, concretely relates to supermarket shopping cart foldable hinge structure, the utility model discloses the main shaft and two support beams, the main shaft bottom is equipped with the wheel body installation mouth, the both sides of main shaft are equipped with the extension platform, and the extension platform side is equipped with a plurality of cooperation mouth, and the one end of support beam is fixedly connected with a plurality of cooperation clamping block, and the height of cooperation clamping block is same with cooperation mouth height, and support beam is rotatably connected with cooperation mouth through cooperation clamping block, still including the fender, and the fender is equipped with the camber surface that covers the main shaft and extension platform, and the fender top is equipped with the transverse board, and the transverse board is equipped with two through -holes, and the extension platform all is equipped with the bolt hole, and the transverse board is detachably connected on the extension platform through the bolt of installation and passes through the through -hole. Adopt the technical scheme of the utility model, is used to provide stronger support, and protects the hinge joint, reduces the probability that the hinge joint produces the scratch to other customers.

Description

Technical Field

[0001] This utility model relates to the field of shopping cart technology, and more specifically, to a foldable hinge structure for a supermarket shopping cart. Background Technology

[0002] Supermarket shopping carts, a type of trolley, are tools used by customers in self-service retail stores such as supermarkets and hypermarkets to temporarily store and transport selected goods. They are an indispensable part of modern retail, greatly enhancing the shopping experience and efficiency. Traditional supermarket shopping carts typically have four wheels and a square basket. However, the square basket is relatively large, and in high-traffic supermarkets, its wide front end requires more space to maneuver, making it difficult for users to push the cart through crowds. Therefore, supermarket shopping carts can be designed with three wheels and a triangular basket, reducing the required width at the front and making it easier for users to push the cart through customer flow.

[0003] The three-wheeled shopping cart is narrower at the front and wider at the rear. Its load-bearing frame extends from the front wheel to each of the two rear wheels via two support beams. These two support beams are connected by hinges, allowing the angle between them to be adjusted to accommodate users of different body types. However, this also means that the hinged front wheels bear more weight, requiring a stronger structural support. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a foldable hinge structure for supermarket shopping carts, which provides stronger support, protects the hinge joint, and reduces the probability of the hinge joint scratching other customers.

[0005] This utility model is achieved through the following technical solution: a foldable hinge structure for a supermarket shopping cart, including a main shaft and two support beams. The bottom of the main shaft is provided with a wheel mounting port, and both sides of the main shaft are provided with extension platforms. The sides of the extension platforms are provided with several mating ports. One end of the support beam is fixedly connected to several mating blocks. The height of the mating blocks is the same as the height of the mating ports. The support beam is rotatably connected to the mating ports through the mating blocks. It also includes a guard plate, which has an arc surface covering the spindle and the expansion table. The top of the guard plate has a horizontal plate with two through holes. The expansion table has bolt holes. The horizontal plate can be detachably connected to the expansion table by mounting bolts passing through the through holes.

[0006] Furthermore, the extension platform and the main spindle form a triangular layout.

[0007] Furthermore, the support beam and the mating block are rotatably connected via a rotating shaft.

[0008] Furthermore, a support platform is provided at the bottom of the guard plate, and the distance between the support platform and the horizontal plate is the same as the height of the extension platform.

[0009] Furthermore, it also includes a mounting rod, with a roller rotatably connected to the bottom of the mounting rod, and the top of the mounting rod rotatably connected to the wheel mounting port.

[0010] Furthermore, the bottom of the support platform is provided with an annular groove, and several balls are provided in the annular groove. An annular platform is provided on the mounting rod, and the annular platform is located at the bottom of the support platform.

[0011] Furthermore, reflective strips are provided on both sides of the mounting rod.

[0012] The technical solution of this utility model has at least the following beneficial effects: The support beam, acting as the structural beam supporting the shopping cart, transmits the pressure of the goods, ensuring the weight of the items on the cart is concentrated on the front wheels. The front wheels are mounted to the bottom of the main shaft via wheel mounting ports. Since the main shaft has wheel mounting ports, which occupy internal space, extension platforms are additionally installed on both sides. The support beam is hinged to these extension platforms to transmit the pressure of the goods. The hinged design, using multiple mating ports and locking blocks, ensures more even force distribution and avoids localized stress.

[0013] Bolt holes are provided on the extension platform, and the guard plate can be installed in the bolt holes through the through holes on its horizontal plate, thereby creating a barrier in front of the main shaft. The guard plate covers the main shaft and extension platform, thus protecting the shopping cart from collisions with other customers during use, so as to prevent customers from being scratched. Attached Figure Description

[0014] Figure 1 This is an isometric schematic diagram of an embodiment of the foldable hinge structure for a supermarket shopping cart according to this utility model; Figure 2 This is a side view schematic diagram of an embodiment of the foldable hinge structure for a supermarket shopping cart according to this utility model; Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle; Figure 4 This is a top view schematic diagram of an embodiment of the foldable hinge structure for a supermarket shopping cart according to this utility model; Figure 5 This is a schematic diagram of the structure of the foldable hinge structure for a supermarket shopping cart of this utility model after removing the protective plate.

[0015] Reference numerals in the attached diagram: 1. Main shaft; 2. Support beam; 3. Extension platform; 4. Mating port; 5. Mating block; 6. Guard plate; 7. Horizontal plate; 8. Mounting bolt; 9. Rotating shaft; 10. Support platform; 11. Mounting rod; 12. Roller; 13. Ball bearing; 14. Circular platform; 15. Reflective strip. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The following detailed description illustrates the specific implementation methods: Example 1 As attached Figures 1-5 As shown, a foldable hinge structure for a supermarket shopping cart includes a main shaft 1 and two support beams 2. The bottom of the main shaft 1 has a wheel mounting port, and extension platforms 3 are provided on both sides of the main shaft 1. The extension platforms 3 and the main shaft 1 form a triangular layout with the main shaft 1 in front and the extension platforms 3 on both sides behind. Several mating ports 4 are provided on the side of the extension platforms 3. Several mating blocks 5 are welded and fixed to one end of the support beams 2. The height of the mating blocks 5 is the same as the height of the mating ports 4. The support beams 2 are rotatably connected to the mating ports 4 through the mating blocks 5 via a rotating shaft 9.

[0020] It also includes a guard plate 6, which has an arc surface covering the main shaft 1 and the expansion platform 3. The top of the guard plate 6 is integrally formed with a horizontal plate 7, which has two through holes. The expansion platform 3 has bolt holes on both of these holes. The horizontal plate 7 is detachably connected to the expansion platform 3 by mounting bolts 8 passing through the through holes. The bottom of the guard plate 6 is integrally formed with a support platform 10. The distance between the support platform 10 and the horizontal plate 7 is the same as the height of the expansion platform 3. The expansion platform 3 is engaged between the support platform 10 and the horizontal plate 7.

[0021] It also includes a mounting rod 11, with a roller 12 rotatably connected to the bottom of the mounting rod 11, and the top of the mounting rod 11 rotatably connected to the wheel mounting port. The bottom of the support platform 10 is provided with an annular groove, and several balls 13 are provided in the annular groove. An annular platform 14 is provided on the mounting rod 11, and the annular platform 14 is located at the bottom of the support platform 10. Reflective strips 15 are attached and fixed to both sides of the mounting rod 11.

[0022] Support beam 2 serves as the structural beam supporting the shopping cart. The goods basket is mounted on support beam 2, allowing the weight of the goods in the basket to be transferred to support beam 2. The front wheels 12 are mounted to the bottom of the main shaft 1 through wheel mounting ports. Since the main shaft 1 has wheel mounting ports, which occupy internal space, extension platforms 3 are additionally provided on both sides. Support beam 2 is hinged to extension platforms 3 to transfer the pressure of the goods.

[0023] The wheel mounting port can be fitted with the mounting rod 11. The mounting rod 11 is rotatably connected to the wheel mounting port, so that the orientation of the bottom roller 12 of the mounting rod 11 can be changed by the rotation relationship between the mounting rod 11 and the wheel mounting port, thereby adjusting the movement direction of the shopping cart.

[0024] The side of the extension platform 3 is provided with multiple mating ports 4. The mating ports 4 are rotatably connected to the mating blocks 5 of the support beam 2 via a rotating shaft 9. The rotating shaft 9 passes through the mating ports 4 and the mating blocks 5, so that the pressure of the goods transmitted by the support beam 2 can be evenly applied to the extension platform 3. The principle is that multiple mating ports 4 create multiple support surfaces. When the support beam 2 transmits the pressure of the goods, pressure is generated at each support surface. In this way, the pressure is borne by multiple support surfaces, making the local pressure less.

[0025] The extension platform 3 and the main shaft 1 form a triangular layout with the main shaft 1 in front and the extension platforms 3 on both sides behind, which narrows the overall width. Due to the three-wheeled design, the front of the supermarket shopping cart is narrower, making the hinge point prone to contact with other customers' legs during use. The guard plate 6 can be installed on the support platform 10. During assembly, the horizontal plate 7 of the guard plate 6 is engaged with the support platform 10 on the extension platform 3, and the through holes are aligned with the bolt holes. The installation is completed by screwing the mounting bolts 8 into the bolt holes. The guard plate 6 has an arc surface that covers the main shaft 1 and the extension platform 3, shielding the sharp edges of the main shaft 1 and the extension platform 3 at the front, reducing the risk of other customers' legs being scratched by sharp edges upon contact. Simultaneously, the support platform 10 at the bottom of the guard plate 6 provides some support, allowing the pressure to be transmitted through the support platform 10, the guard plate 6, and the bolts to the top of the extension platform 3, enhancing overall rigidity. Meanwhile, the bottom of the support platform 10 is provided with an annular groove, and a number of balls 13 are provided in the annular groove. The balls 13 can directly contact the annular platform 14 on the mounting rod 11, transmit pressure to the mounting rod 11, and maintain the rotational relationship between the mounting rod 11 and the main shaft 1 through the rolling of the balls 13.

[0026] Reflective strips 15 are provided on both sides of the mounting rod 11. They can reflect light to indicate the position of the mounting rod 11, making it easier for other customers to see the front of the supermarket shopping cart and actively avoid it to reduce the probability of scratching the front of the supermarket shopping cart.

[0027] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A foldable hinge structure for a supermarket shopping cart, characterized in that, It includes a main shaft (1) and two support beams (2). The bottom of the main shaft (1) is provided with a wheel mounting port. Both sides of the main shaft (1) are provided with extension platforms (3). The sides of the extension platforms (3) are provided with several mating ports (4). One end of the support beam (2) is fixedly connected with several mating blocks (5). The height of the mating blocks (5) is the same as the height of the mating ports (4). The support beam (2) is rotatably connected to the mating ports (4) through the mating blocks (5). It also includes a guard plate (6), which has an arc surface covering the spindle (1) and the expansion table (3). The top of the guard plate (6) has a horizontal plate (7), which has two through holes. The expansion table (3) has bolt holes. The horizontal plate (7) can be detachably connected to the expansion table (3) by passing through the through holes with mounting bolts (8).

2. The foldable hinge structure for a supermarket shopping cart according to claim 1, characterized in that, The extension platform (3) and the main spindle (1) form a triangular layout.

3. The foldable hinge structure for a supermarket shopping cart according to claim 1, characterized in that, The support beam (2) and the mating block (5) are rotatably connected by a rotating shaft (9).

4. The foldable hinge structure for a supermarket shopping cart according to claim 1, characterized in that, The bottom of the guard plate (6) is provided with a support platform (10), and the distance between the support platform (10) and the horizontal plate (7) is the same as the height of the extension platform (3).

5. The foldable hinge structure for a supermarket shopping cart according to claim 4, characterized in that, It also includes a mounting rod (11), with a roller (12) rotatably connected to the bottom of the mounting rod (11), and the top of the mounting rod (11) rotatably connected to the wheel mounting port.

6. The foldable hinge structure for a supermarket shopping cart according to claim 5, characterized in that, The bottom of the support platform (10) is provided with an annular groove, and several balls (13) are provided in the annular groove. An annular platform (14) is provided on the mounting rod (11), and the annular platform (14) is located at the bottom of the support platform (10).

7. The foldable hinge structure for a supermarket shopping cart according to claim 4, characterized in that, Reflective strips (15) are provided on both sides of the mounting rod (11).

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