A commercial shopping trolley with a rollable ladder

Abstract

The utility model relates to a kind of shopping trolley of commercial available upper rolling ladder, involve commercial shopping equipment technical field, the shopping trolley of commercial available upper rolling ladder, including frame and the storage column for storing goods for being installed in frame one side;The utility model has the beneficial effect that: locking structure is constituted by chuck, clamping groove and limit chuck etc., collocation foot pedal and conical control block transmission, realize quick lock of gyro wheel, when shopping cart enters rolling ladder, user presses foot pedal, conical control block promotes square slide bar, let limit chuck be inserted into annular clamping groove accurately, limit gyro wheel rotation, offset slide force, gyro wheel can be locked at any angle, simultaneously, the turnover column of storage column and limit baffle prevent goods from falling, when adjacent car is stacked, rear car storage column can drive front car turnover column automatic overturn, realize overlapping storage, U-shaped connecting frame screw connection is easy to replace, anti-collision rubber pad, procurement column, hook can also protect equipment, expand function, satisfy the demand of classified storage.

Description

Technical Field

[0001] This utility model relates to the field of commercial shopping equipment technology, and in particular to a commercial shopping cart that can be taken up onto an escalator. Background Technology

[0002] In large commercial venues such as supermarkets, shopping malls, and warehouse clubs, shopping carts, as a core tool to enhance the consumer shopping experience and assist in the handling of goods, have expanded their usage from a single horizontal ground level to cross-area movement between multiple floors. As commercial buildings develop towards multi-story and three-dimensional structures, escalators, as the main passageways connecting different floors, have become standard equipment in commercial venues, making "shopping carts accompanying consumers through escalators" a high-frequency requirement.

[0003] Currently, most commercial shopping carts on the market have free-rolling wheels, which only have basic movement functions. When consumers need to carry shopping carts on inclined escalators, the wheels of the shopping carts lack an effective locking mechanism because the escalator surface is at a certain angle. Under the action of gravity, they are very likely to slide along the inclined direction of the escalator, which may not only cause the goods to spill, but also pose a collision risk to other consumers on the escalator, posing a serious safety hazard. Utility Model Content

[0004] To overcome the technical defects of existing technologies, this utility model provides a commercial shopping cart that can be used on escalators. Through a locking structure consisting of a chuck, slots, and limiting heads, combined with a foot pedal and conical control block transmission, the rollers can be quickly locked. When the shopping cart enters the escalator, the user presses down on the foot pedal, and the conical control block pushes the square sliding rod, allowing the limiting heads to precisely insert into the annular slots, restricting the rotation of the rollers and counteracting the downward force. The rollers can be locked at any angle. Simultaneously, the flip-up storage compartment and limiting plates prevent goods from falling. When adjacent carts are stacked, the storage compartment of the rear cart can push the flip-up compartment of the front cart to automatically flip, achieving overlapping storage. The U-shaped connecting frame with threaded connection is easy to replace. Anti-collision pads, shopping compartments, and hooks also protect equipment and expand functionality, meeting the needs of categorized storage.

[0005] The technical solution adopted by this utility model is: a commercial shopping cart that can go up an escalator, including a frame and a storage compartment installed on one side of the frame for storing goods; A U-shaped connecting frame is threaded at the corner of the bottom of the frame. A fixed shaft is fixedly installed inside the U-shaped connecting frame. A roller is rotatably connected to the surface of the fixed shaft. A chuck is fixedly installed on one side of the roller. Several slots are evenly distributed in a ring on one side of the chuck. A fixed block is fixedly installed on the outer surface of the fixed shaft. A square slide rod is slidably connected to the surface of the fixed block. A limiting head that matches the slot is fixed at one end of the square slide rod. The limit stop is used to insert into the slot to lock the roller.

[0006] Preferably, a ball head is fixed to the end of the square slide bar away from the limit stop, and a foot pedal is rotatably connected to the outer surface of the fixed shaft. A conical control block is installed on the bottom surface of the foot pedal, and the conical control block uses the inclined surface to cooperate with the ball head to control the sliding of the square slide bar.

[0007] Preferably, the surface of the conical control block is provided with a ball head groove, which is adapted to the ball head and used to limit the ball head.

[0008] Preferably, a spring is fitted on the outer surface of the square slide rod, with one end of the spring abutting against one side of the fixing block and the other end of the spring abutting against one side of the fixing plate fixedly installed on the outer surface of the square slide rod.

[0009] Preferably, a first fixing rod and a second fixing rod are fixedly installed on the surface of the frame. The second fixing rod is located at the upper opening of the storage compartment, and the first fixing rod is located at the lower opening of the storage compartment. A rotating sleeve is rotatably connected to the outer surface of the second fixing rod. A flip-up bar is fixedly installed on one side of the rotating sleeve, and a limit plate is fixedly installed on one side of the flip-up bar. The limit plate is engaged with the surface of the first fixing rod to prevent the goods in the storage compartment from falling out.

[0010] Preferably, when adjacent shopping carts are stacked, the storage compartment of the later shopping cart pushes the flip-top compartment of the storage compartment of the earlier shopping cart to flip over, and the storage compartments of the two shopping carts are stacked together.

[0011] Preferably, rubber anti-collision pads are installed at the corners of the storage compartments.

[0012] Preferably, a fixing plate is fixedly installed on one side of the top of the frame, a purchasing column is fixedly installed on one side of the fixing plate, and a ring-shaped limiting cup holder is installed at the opening of the purchasing column.

[0013] Preferably, the surface of the fixing plate is fixedly equipped with hooks for hanging shopping bags.

[0014] Preferably, the top of the frame is provided with a non-slip pad for hand grip.

[0015] The beneficial effects of this utility model are: The new locking structure, consisting of a chuck, slot, and limiting head, combined with the transmission design of the foot pedal and conical control block, enables the rollers to lock quickly. When the shopping cart enters the escalator, the user only needs to press down on the foot pedal to push the square slide bar through the conical control block, so that the limiting head can be accurately inserted into the ring-shaped slots, directly restricting the rotation of the rollers and completely counteracting the downward force of the shopping cart along the escalator. This structure can lock the rollers at any angle, preventing collisions caused by the shopping cart sliding and solving the safety pain points of existing shopping carts in escalator scenarios. The flip-up bar and limit plate of the storage compartment can prevent goods from falling. When adjacent shopping carts are stacked, the storage compartment of the rear cart can push the flip-up bar of the front cart to automatically flip, realizing the stacking of storage compartments and reducing the storage space occupied in the mall. The U-shaped connecting frame uses threaded connection, and can be replaced individually when damaged without the need for overall repair. The design of anti-collision rubber pads, shopping cart bar, hooks and other features not only protects the equipment and goods, but also expands the loading function of the shopping cart and meets the needs of consumers for classified storage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This utility model Figure 1 A side view structural diagram.

[0018] Figure 3 This is a schematic diagram of the structure of the two storage compartments stacked together according to this utility model.

[0019] Figure 4 This is a structural diagram of the flip-over compartment, fixing rod one, fixing rod two, and storage compartment of this utility model.

[0020] Figure 5 This is a structural schematic diagram of the U-shaped connecting frame, rollers, and fixed shaft of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the roller, foot pedal and fixed shaft of this utility model.

[0022] Figure 7 This utility model Figure 6 An enlarged schematic diagram of the structure at point A in the diagram.

[0023] Explanation of reference numerals in the attached diagram: 1. Frame; 3. Storage compartment; 4. Anti-collision pad; 5. Fixing rod one; 6. Rotating sleeve; 7. Limiting plate; 8. Flip-over compartment; 9. Fixing rod two; 11. Hook; 12. Fixing plate; 13. Purchasing compartment; 14. Circular limiting cup holder; 15. Anti-slip pad; 16. U-shaped connecting frame; 17. Fixing shaft; 18. Roller; 19. Foot pedal; 20. Chuck; 21. Slot; 22. Fixing block; 23. Square slide bar; 24. Limiting head; 25. Ball head; 26. Spring; 27. Fixing disc; 28. Conical control block; 29. ​​Ball head groove. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings: like Figure 1-7 As shown, this embodiment provides a commercial shopping cart that can go up an escalator, including a frame 1 and a storage compartment 3 installed on one side of the frame 1 for storing goods; A U-shaped connecting frame 16 is threaded at the corner of the bottom of the frame 1. A fixed shaft 17 is fixedly installed inside the U-shaped connecting frame 16. A roller 18 is rotatably connected to the surface of the fixed shaft 17. A chuck 20 is fixedly installed on one side of the roller 18. Several slots 21 are evenly distributed in a ring on one side of the chuck 20. A fixed block 22 is fixedly installed on the outer surface of the fixed shaft 17. A square slide rod 23 is slidably connected to the surface of the fixed block 22. A limiting head 24 that matches the slot 21 is fixed at one end of the square slide rod 23. The limiting head 24 is used to be inserted into the card slot 21 to lock the roller 18.

[0025] The U-shaped connecting bracket 16, threaded at the bottom corner of frame 1, facilitates installation, disassembly, and replacement. When the U-shaped connecting bracket 16 is damaged, it can be repaired or replaced individually, reducing maintenance costs. Simultaneously, the U-shaped structure stably fixes the fixed shaft 17, ensuring a firm mounting foundation for the roller 18. The chuck 20 fixedly mounted on one side of the roller 18, along with several evenly distributed grooves 21, cooperates with the limiting chuck 24 to form a key part of the locking structure. The annular distribution design of the grooves 21 ensures that the limiting chuck 24 can find the corresponding groove 21 to achieve locking at any rotation angle of the roller 18, improving the reliability and flexibility of locking. The fixing block 22 fixedly mounted on the outer surface of the fixed shaft 17 provides a convenient... The square slide bar 23 provides stable sliding support and guidance, ensuring that the square slide bar 23 can only slide in a straight line, and ensuring that the limiting head 24 can be accurately inserted into the slot 21. The square slide bar 23, which is slidably connected to the surface of the fixing block 22, has a square structure that prevents the slide bar from rotating, ensuring the directional stability of the limiting head 24 and enabling it to accurately align with the slot 21. At the same time, the sliding of the slide bar realizes the extension and retraction of the limiting head 24. The limiting head 24, which is fixed at one end of the square slide bar 23 and is adapted to the slot 21, directly restricts the rotation of the chuck 20 and the roller 18 by inserting it into the slot 21, thereby locking the roller 18 and effectively preventing the shopping cart from sliding on the inclined escalator, thus solving the safety hazard of the existing shopping cart easily sliding on the escalator.

[0026] Furthermore, a ball head 25 is fixed to the end of the square slide bar 23 away from the limit clamp head 24, and a foot pedal 19 is rotatably connected to the outer surface of the fixed shaft 17. A conical control block 28 is installed on the bottom surface of the foot pedal 19. The conical control block 28 uses the inclined surface to cooperate with the ball head 25 to control the sliding of the square slide bar 23.

[0027] The ball head 25, which is fixed to the end of the square slide bar 23 away from the limiting latch head 24, changes the contact between the square slide bar 23 and the conical control block 28 from point contact to spherical contact, reducing frictional resistance and making the control of the slide bar by the conical control block 28 smoother. At the same time, the ball head 25 can adapt to the angle change when the conical control block 28 rotates, ensuring the stability of the transmission. The foot pedal 19, which is rotatably connected to the outer surface of the fixed shaft 17, provides users with a convenient operating component. The locking mechanism can be controlled by stepping on it. The operation is simple and intuitive, conforms to ergonomics, and allows consumers to operate quickly while pushing and pulling the shopping cart.

[0028] Furthermore, the surface of the conical control block 28 is provided with a ball head groove 29, which is adapted to the ball head 25 and is used to limit the ball head 25.

[0029] During the sliding of the square slide bar 23 and the rotation of the conical control block 28, the ball head 25 is limited to prevent it from falling off the surface of the conical control block 28, thus ensuring the stability and reliability of the cooperation between the two and avoiding the locking mechanism from failing to work properly due to cooperation failure.

[0030] Furthermore, a spring 26 is fitted on the outer surface of the square slide bar 23. One end of the spring 26 abuts against one side of the fixing block 22, and the other end of the spring 26 abuts against one side of the fixing plate 27 fixedly installed on the outer surface of the square slide bar 23.

[0031] When the foot pedal 19 is lifted, the elastic restoring force of the spring 26 can push the square slide bar 23 to automatically reset, causing the limit latch 24 to exit from the slot 21, thus automatically releasing the locked state of the roller 18. No manual operation is required, making it convenient to use. At the same time, the spring 26 can also provide pre-tightening force in the locked state to ensure that the limit latch 24 is tightly engaged with the slot 21, preventing accidental dislodgement.

[0032] Furthermore, a first fixing rod 5 and a second fixing rod 9 are fixedly installed on the surface of the frame 1. The second fixing rod 9 is located at the upper opening of the storage compartment 3, and the first fixing rod 5 is located at the lower opening of the storage compartment 3. A rotating sleeve 6 is rotatably connected to the outer surface of the second fixing rod 9. A flip-up bar 8 is fixedly installed on one side of the rotating sleeve 6. A limit plate 7 is fixedly installed on one side of the flip-up bar 8. The limit plate 7 is engaged with the surface of the first fixing rod 5 to prevent the goods in the storage compartment 3 from falling out.

[0033] The flip-up bar 8, which is fixedly installed on one side of the rotating sleeve 6, can block the goods in the storage compartment 3 when closed, preventing the goods from falling off the top of the storage compartment 3. It can effectively protect the safety of the goods, especially when the shopping cart moves or turns. The limiting plate 7, which is fixedly installed on one side of the flip-up bar 8, is engaged with the surface of the fixing rod 5, which can stably fix the flip-up bar 8 in the closed position, preventing it from accidentally rotating during shopping and causing the goods to fall off, thus ensuring the reliability of the protective function.

[0034] Furthermore, when adjacent shopping carts are stacked, the storage compartment 3 of the latter shopping cart pushes the flip-over compartment 8 inside the storage compartment 3 of the former shopping cart to flip over, and the storage compartments 3 of the two shopping carts overlap.

[0035] When adjacent shopping carts are stacked, the storage compartment 3 of the next shopping cart pushes the flip-up compartment 8 of the previous one to flip, so that the storage compartments 3 overlap. This design can greatly reduce the space occupied when multiple shopping carts are stacked, making it easier for shopping malls and other commercial places to store and manage, saving storage space and improving space utilization. At the same time, the stacking process does not require manual operation of the flip-up compartment 8, which is convenient and quick.

[0036] Furthermore, rubber anti-collision pads 4 are installed at the corners of storage compartment 3.

[0037] Rubber has good elasticity and cushioning properties. When shopping carts collide with each other or come into contact with other objects, it can absorb collision energy, reduce impact force, protect storage compartment 3 from damage, extend service life, and at the same time prevent the goods in storage compartment 3 from being damaged by collision.

[0038] Furthermore, a fixing plate 12 is fixedly installed on one side of the top of the frame 1, and a purchasing column 13 is fixedly installed on one side of the fixing plate 12. A ring-shaped limiting cup holder 14 is installed at the opening of the purchasing column 13.

[0039] The shopping cart 13, which is fixedly installed on one side of the fixed plate 12, provides consumers with additional space for small items. It can be used to place personal items such as wallets, mobile phones, and keys, or a small number of small items that need to be purchased urgently, making them easy to access and improving shopping convenience. The ring-shaped cup holder 14 installed at the opening of the shopping cart 13 can limit and fix cylindrical items such as bottled beverages and water cups, preventing them from tipping over, falling, or rolling during the movement of the shopping cart, and ensuring the safe storage of such items.

[0040] Furthermore, hooks 11 for hanging shopping bags are fixedly installed on the surface of the fixing plate 12.

[0041] The hooks 11 fixedly installed on the surface of the fixed plate 12 can be used to hang shopping bags. When the goods purchased by consumers are not suitable to be put into the storage compartment 3 or need to be stored separately, the shopping bags can be hung by the hooks 11, which increases the loading method and flexibility of the shopping cart and meets different shopping needs.

[0042] Furthermore, the top of the frame 1 is provided with an anti-slip pad 15 for hand gripping.

[0043] The anti-slip pad 15 at the top of the frame 1 increases the friction between the hand and the frame 1, preventing the hand from slipping while pushing or pulling the shopping cart. Especially when the hand is wet or when applying great force, it can ensure the stability and safety of the grip, and improve the comfort and control of operation.

[0044] The working principle of this utility model is as follows: This commercial shopping cart that can go up an escalator is mainly supported by a frame 1. The various functional components are organically combined through the frame 1. The storage compartment 3 installed on one side of the frame 1 is used to store goods and form a basic shopping carrying space. The anti-slip pad 15 set at the top of the frame 1 provides users with a stable grip and makes it easy to push and pull the shopping cart. The rubber anti-collision pad 4 installed at the corner of the storage compartment 3 can reduce the impact force when the shopping cart collides with other objects during the movement or parking process, and play a role in protecting the storage compartment 3 and the goods. The fixing plate 12 fixed on one side of the top of the frame 1 is used to install the shopping cart 13, providing consumers with additional space for small items. The ring-shaped cup holder 14 at the opening of the shopping cart 13 can limit cylindrical items such as bottled beverages to prevent them from tipping over. On the other hand, the hooks 11 installed on the surface of the fixing plate 12 can be used to hang shopping bags, increasing the versatility of the shopping cart's loading function. At the bottom corner of frame 1, a U-shaped connecting bracket 16 connected by threads provides a mounting base for the fixed shaft 17. The roller 18 rotatably connected to the surface of the fixed shaft 17 enables the shopping cart to move. When the shopping cart needs to be prevented from sliding on an inclined escalator, its core locking function is achieved through the following components working together: When it is necessary to lock the roller 18, the user can press down the foot pedal 19. Since the foot pedal 19 is rotatably connected to the outer surface of the fixed shaft 17, when the foot pedal 19 rotates, it will drive the conical control block 28 mounted on its bottom surface to rotate synchronously. The conical control block 28 uses its own inclined surface to cooperate with the ball head 25 at one end of the square slide rod 23. As the conical control block 28 rotates, its inclined surface pushes the ball head 25, causing the square slide rod 23 to slide on the surface of the fixed block 22 (the fixed block 22 is fixedly installed on the outer surface of the fixed shaft 17 to provide sliding guidance for the square slide rod 23). During the sliding process of the square slide bar 23, the limiting head 24 fixed at one end will be inserted into the slot 21 on the chuck 20 on one side of the roller 18 (the slot 21 is evenly distributed in a ring on the surface of the chuck 20). Through the engagement of the limiting head 24 and the slot 21, the roller 18 is prevented from rotating around the fixed shaft 17, thereby locking the roller 18 and preventing the shopping cart from sliding on the escalator. When it is necessary to release the locked state of the roller 18, lift the foot pedal 19, and the spring 26 sleeved on the outer surface of the square slide bar 23 will generate a restoring force (one end of the spring 26 abuts against one side of the fixed block 22, and the other end abuts against one side of the fixed plate 27 fixedly installed on the outer surface of the square slide bar 23), pushing the square slide bar 23 to slide in the opposite direction, so that the limit lock head 24 exits from the slot 21, and the roller 18 resumes its rotation ability; The ball head groove 29 on the surface of the tapered control block 28 is adapted to the ball head 25 and plays a limiting role in the sliding of the square slide bar 23, ensuring the stability of the fit between the tapered control block 28 and the ball head 25. Fixed rod 5 and fixed rod 9, which are fixedly installed on the surface of frame 1, are located at the lower and upper openings of storage compartment 3, respectively, and together constitute the protective auxiliary structure of storage compartment 3. The rotating sleeve 6, which is rotatably connected to the outer surface of fixed rod 9, can drive the flip-up compartment 8, which is fixedly installed on one side, to rotate around fixed rod 9. When goods are placed in storage compartment 3, the limiting plate 7 on one side of flip-up compartment 8 is engaged with the surface of fixed rod 5, so that flip-up compartment 8 blocks the opening of storage compartment 3 and prevents goods in storage compartment 3 from falling out. When multiple shopping carts need to be stacked and stored, the storage compartment 3 of the next shopping cart will push the flip-up bar 8 inside the storage compartment 3 of the previous shopping cart, causing the flip-up bar 8 to rotate around the rotating sleeve 6. The limiting plate 7 separates from the fixing rod 5, and the flip-up bar 8 flips to the inside of the storage compartment 3. At this time, the storage compartments 3 of the two shopping carts can be stacked and stored, reducing the storage space occupied.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A commercial shopping cart that can be loaded onto an escalator, comprising a frame (1) and a storage compartment (3) installed on one side of the frame (1) for storing goods. Its features are: A U-shaped connecting frame (16) is threaded at the corner of the bottom of the frame (1). A fixed shaft (17) is fixedly installed inside the U-shaped connecting frame (16). A roller (18) is rotatably connected to the surface of the fixed shaft (17). A chuck (20) is fixedly installed on one side surface of the roller (18). Several slots (21) are evenly distributed in a ring on one side surface of the chuck (20). A fixed block (22) is fixedly installed on the outer surface of the fixed shaft (17). A square slide rod (23) is slidably connected to the surface of the fixed block (22). A limiting head (24) that matches the slot (21) is fixed at one end of the square slide rod (23). The limiting head (24) is used to be inserted into the slot (21) to lock the roller (18).

2. A commercial shopping cart capable of operating on escalators according to claim 1, characterized in that: A ball head (25) is fixed at one end of the square slide bar (23) away from the limiting clamp (24). A foot pedal (19) is rotatably connected to the outer surface of the fixed shaft (17). A conical control block (28) is installed on the bottom surface of the foot pedal (19). The conical control block (28) uses the inclined surface to cooperate with the ball head (25) to control the sliding of the square slide bar (23).

3. A commercial shopping cart capable of operating on escalators according to claim 2, characterized in that: The surface of the conical control block (28) is provided with a ball head groove (29), which is adapted to the ball head (25) and is used to limit the ball head (25).

4. A commercial shopping cart that can go up an escalator according to claim 1, characterized in that: A spring (26) is fitted on the outer surface of the square slide bar (23). One end of the spring (26) abuts against one side of the fixing block (22), and the other end of the spring (26) abuts against one side of the fixing plate (27) fixedly installed on the outer surface of the square slide bar (23).

5. A commercial shopping cart that can go up an escalator according to claim 1, characterized in that: The frame (1) is fixedly mounted with a first fixing rod (5) and a second fixing rod (9). The second fixing rod (9) is located at the upper opening of the storage compartment (3), and the first fixing rod (5) is located at the lower opening of the storage compartment (3). The outer surface of the second fixing rod (9) is rotatably connected with a rotating sleeve (6). A flip-up bar (8) is fixedly mounted on one side of the rotating sleeve (6). A limit plate (7) is fixedly mounted on one side of the flip-up bar (8). The limit plate (7) is engaged with the surface of the first fixing rod (5) to prevent the goods in the storage compartment (3) from falling out.

6. A commercial shopping cart capable of operating on escalators according to claim 1, characterized in that: When adjacent shopping carts are stacked, the storage compartment (3) of the next shopping cart pushes the flip-up compartment (8) inside the storage compartment (3) of the previous shopping cart to flip over, and the storage compartments (3) of the two shopping carts overlap.

7. A commercial shopping cart capable of operating on escalators according to claim 1, characterized in that: Rubber anti-collision pads (4) are installed at the corners of the storage compartment (3).

8. A commercial shopping cart that can go up an escalator according to claim 1, characterized in that: A fixing plate (12) is fixedly installed on one side of the top of the frame (1), and a purchasing column (13) is fixedly installed on one side of the fixing plate (12). A ring-shaped limiting cup holder (14) is installed at the opening of the purchasing column (13).

9. A commercial shopping cart capable of operating on escalators according to claim 8, characterized in that: The surface of the fixing plate (12) is fixedly equipped with hooks (11) for hanging shopping bags.

10. A commercial shopping cart capable of operating on escalators according to claim 1, characterized in that: The top of the frame (1) is provided with a non-slip pad (15) for hand grip.

Images