A modular, replaceable, multi-functional frame

Abstract

This utility model discloses a modular, replaceable, multi-functional cart frame, relating to the field of shopping cart manufacturing technology. It includes a frame, a basket, and a connecting slide rail. The connecting slide rail contains a locking component, which includes a locking buckle, a first elastic unit, and a stop block. The basket is connected to the connecting slide rail via the connecting buckle, and the first elastic unit drives the locking buckle to abut against the connecting buckle, thus locking the basket onto the connecting slide rail. The modular, replaceable, multi-functional cart frame provided by this utility model features connecting buckles at the bottom of baskets of different sizes. The basket can slide into the connecting slide rail via the connecting buckles and engage with the locking buckle of the locking component. The first elastic unit drives the connecting buckle to abut against the outer wall of the stop block, allowing different baskets to be connected to the frame. This enables modular combination of baskets of different volumes with the frame, facilitating user assembly according to different carrying needs and making it convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of shopping cart manufacturing technology, and more specifically to a modular, replaceable, multi-functional cart frame. Background Technology

[0002] When shopping in a supermarket, customers need to store their purchases in a shopping basket or cart. This allows customers to easily and conveniently carry their items while shopping. Currently, large supermarkets provide both shopping baskets and carts for customer convenience. People use shopping baskets when buying small amounts of items and shopping carts when buying larger quantities.

[0003] According to utility model patent application CN2670199Y, published on January 12, 2005, a shopping cart for supermarkets and large shopping malls is disclosed, including a frame, handlebars, and casters. The key feature is that the frame consists of a lower frame, an upper frame, and a support frame. The lower and upper frames are double-layered, each capable of holding a full box of goods or a shopping basket for carrying multiple items. The support frame serves as both the support structure for the upper frame and the cart's support and handlebars. Its main technical advantages are: the double-layered design allows for combination with shopping baskets, accommodating both various item loading and full box carrying; the frame is simple, lightweight, aesthetically pleasing, and structurally sound, saving materials and costs; and it offers good stacking performance, especially beneficial in large supermarkets where numerous shopping carts can be stacked, saving space.

[0004] Existing modular trolley designs can only be combined with shopping baskets of one size, resulting in limited cargo space. To address this, a modular, replaceable, multi-functional frame is proposed to solve the problem of limited cargo space in existing modular trolley designs. Utility Model Content

[0005] The purpose of this invention is to provide a modular and replaceable multi-functional cart frame, which aims to solve the problem of limited cargo space in existing modular handcart designs.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A modular, replaceable, multi-functional bicycle frame includes a frame and baskets, wherein the number of baskets is plurality of baskets with different volumes, and further includes:

[0008] A connecting slide rail is provided on the frame, and a locking component is provided inside the end of the connecting slide rail. The locking component includes a locking buckle symmetrically slidably connected to the connecting slide rail, a first elastic unit provided between the connecting slide rail and the locking buckle, and an abutment block provided on the inner wall of the connecting slide rail.

[0009] Connecting clips are installed at the bottom of the basket;

[0010] The basket is connected to the connecting slide rail by a connecting buckle, and the locking buckle is driven by the first elastic unit to abut against the connecting buckle, so that the basket is locked onto the connecting slide rail.

[0011] Preferably, the end of the connecting slide rail is provided with a mounting groove, the locking buckle is slidably connected inside the mounting groove, and the first elastic unit is disposed between the locking buckle and the inner wall of the mounting groove.

[0012] Preferably, the locking assembly further includes an unlocking block, a connecting rod is fixedly installed on the outer wall of one side of the abutting block, the unlocking block is slidably connected to the connecting rod, the locking buckle is provided with a first wedge-shaped surface, and the unlocking block is provided with a second wedge-shaped surface. The first wedge-shaped surface of the locking buckle is driven by a first elastic unit to abut against the second wedge-shaped surface on the unlocking block.

[0013] Preferably, a movable rod is fixedly installed on the outer wall of one side of the unlocking block. One end of the movable rod passes through and extends to the outside of the mounting groove. A second elastic unit is sleeved on the outside of the movable rod. One end of the second elastic unit abuts against the outside of the unlocking block, and the other end abuts against the inner wall of the mounting groove.

[0014] Preferably, a limiting block is fixedly installed on the inner wall of the mounting groove.

[0015] Preferably, the system also includes an unlocking linkage, and the number of connecting slide rails is two, with the unlocking linkage connected to the locking components in the two connecting slide rails.

[0016] In the above technical solution, the modular and replaceable multi-functional frame provided by this utility model has the following beneficial effects:

[0017] This utility model features connecting buckles at the bottom of baskets of different sizes and specifications. The baskets can be slidably connected to the connecting slide rails via the connecting buckles, and engage with the locking buckles of the locking assembly via the connecting buckles. The first elastic unit drives the connecting buckles to abut against the outer wall of the abutment block, enabling different baskets to be connected to the frame. This allows for modular combination of baskets of different volumes with the frame, facilitating assembly by users according to different cargo needs and making it convenient to use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the basket disassembly structure provided in an embodiment of the present utility model;

[0021] Figure 3 A schematic diagram of the bottom mounting and connecting buckle of the basket provided in this embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the locking state of the locking component provided in an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the unlocking state of the locking component provided in an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Frame; 2. Basket; 3. Connecting slide rail; 31. Mounting slot; 4. Locking assembly; 41. Locking buckle; 411. First wedge surface; 412. Fourth wedge surface; 42. First elastic unit; 43. Abutment block; 44. Unlocking block; 441. Second wedge surface; 45. Connecting rod; 46. Movable rod; 47. Second elastic unit; 48. Limiting block; 49. Unlocking linkage; 40. Protective cover plate; 5. Connecting buckle; 51. Third wedge surface. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Please see Figures 1-5 A modular, replaceable, multi-functional bicycle frame includes a frame 1 and baskets 2, wherein there are several baskets 2 with different volumes, and further includes:

[0028] The connecting slide rail 3 is provided on the frame 1. The connecting slide rail 3 has a locking component 4 inside its end. The locking component 4 includes a locking buckle 41 symmetrically slidably connected to the connecting slide rail 3, a first elastic unit 42 disposed between the connecting slide rail 3 and the locking buckle 41, and an abutment block 43 disposed on the inner wall of the connecting slide rail 3.

[0029] The connecting buckle 5 is located at the bottom of the basket 2;

[0030] The basket 2 is connected to the connecting slide rail 3 by the connecting buckle 5, and the first elastic unit 42 drives the locking buckle 41 to abut against the connecting buckle 5 so that the basket 2 is locked onto the connecting slide rail 3.

[0031] As an embodiment provided by this utility model, the frame 1 is a conventional hand-pushed shopping cart structure in the prior art, which will not be described in detail here, and the main structure of the basket 2 is also a conventional structure in the art.

[0032] Furthermore, such as Figure 2 As shown, a connecting slide rail 3 is fixedly installed on the frame 1. As a preferred embodiment of the present invention, there are two connecting slide rails 3. The two connecting slide rails 3 are symmetrically arranged on the frame 1. A groove is opened on the connecting slide rail 3. The cross-sectional shape of the groove is adapted to the cross-sectional shape of the connecting buckle 5 at the bottom of the basket 2, so that the basket 2 can be slidably connected through the connecting buckle 5 at the bottom.

[0033] A locking component 4 is provided at the end of the connecting slide rail 3. Specifically, the locking component 4 includes a locking buckle 41, a first elastic unit 42, and an abutment block 43. The locking buckle 41 is slidably connected to the end of the connecting slide rail 3 and is symmetrically arranged. A first elastic unit 42 is provided between the locking buckle 41 and the connecting slide rail 3. Preferably, there are two locking buckles 41 and multiple first elastic units 42. The multiple first elastic units 42 drive the two locking buckles 41 to keep moving towards each other. Preferably, the connecting buckle 5 has a third wedge-shaped surface 51 on both sides of its end, and a fourth wedge-shaped surface 412 on its end of the locking buckle 41. When the connecting buckle 5 is inserted between the two locking buckles 41, the third wedge-shaped surface 51 and the fourth wedge-shaped surface 412 abut against each other, causing the two locking buckles 41 to open. An abutting block 43 is provided on the connecting slide rail 3. The abutting block 43 is used to abut against the connecting buckle 5 to restrict the sliding of the connecting buckle 5. When the abutting block 43 abuts against the connecting buckle 5, the fourth wedge-shaped surface 412 on the two locking buckles 41 separates from the third wedge-shaped surface 51 of the connecting buckle 5, the locking buckle 41 resets, and the connecting buckle 5 is locked.

[0034] As a preferred embodiment provided by this utility model, such as Figure 4As shown, an installation groove 31 is provided at the end of the connecting slide rail 3. The slide groove is connected to the installation groove 31, so that the connecting buckle 5 installed on the basket 2 can be inserted into the installation groove 31 through the slide groove. The abutment block 43 is fixedly installed on the inner wall of the installation groove 31. Both locking buckles 41 are slidably connected to the inner wall of the installation groove 31. The two locking buckles 41 are symmetrical about the abutment block 43. One end of the first elastic unit 42 abuts against the locking buckle 41, and the other end abuts against the inner wall of the installation groove 31. The first elastic unit 42 is a compression spring. The locking buckle 41 is kept sliding to one side by the elasticity of the first elastic unit 42 itself. The first elastic unit 42 is distributed between the locking buckles 41 on both sides and the inner walls of the two sides of the installation groove 31. The first elastic unit 42 on both sides drives the locking buckles 41 on both sides to keep them moving towards each other, thereby realizing the locking of the connecting buckle 5.

[0035] Preferably, the slide groove has a notch to facilitate the insertion of the connecting buckle 5 into the slide groove.

[0036] As a further embodiment provided by this utility model, such as Figure 4 As shown, the locking assembly 4 also includes an unlocking block 44. Specifically, a connecting rod 45 is fixedly installed on the outer wall of one side of the unlocking block 44. The unlocking block 44 is slidably connected to the connecting rod 45. A first wedge-shaped surface 411 is provided on the locking buckle 41, and second wedge-shaped surfaces 441 are provided on both sides of the unlocking block 44. Under the drive of the first elastic unit 42, the first wedge-shaped surface 411 on the locking buckle 41 abuts against the second wedge-shaped surface 441 on the unlocking block 44.

[0037] By driving the unlocking block 44 away from the abutting block 43, the two locking latches 41 can be driven to maintain a moving away position, at which time the connecting latch 5 can remain active.

[0038] Furthermore, a movable rod 46 is fixedly installed on the outer wall of the unlocking block 44. One end of the movable rod 46 passes through and extends to the outside of the mounting groove 31, that is, the unlocking block 44 is slidably connected to the connecting slide rail 3 through the movable rod 46. A second elastic unit 47 is sleeved on the outer wall of the movable rod 46. The second elastic unit 47 is a compression spring. One end of the second elastic unit 47 abuts against the unlocking block 44, and the other end abuts against the inner wall of the mounting groove 31. The second elastic unit 47 can drive the unlocking block 44 to move toward the abutting block 43.

[0039] As a preferred option, such as Figure 5 As shown, a limiting block 48 is fixedly installed on the inner wall of the mounting groove 31. The limiting block 48 is located between the unlocking block 44 and the inner wall of one side of the mounting groove 31, which can restrict the movement of the unlocking block 44.

[0040] As a preferred embodiment provided by this utility model, such as Figure 2As shown, it also includes an unlocking linkage 49, the two ends of which are connected to the movable rods 46 of the two locking components 4 respectively. When unlocking, the user only needs to pull the unlocking linkage 49 to remove the basket 2 from the connecting slide rail 3.

[0041] It also includes a protective cover plate 40, which is fixedly installed in the mounting groove 31 to prevent the locking buckle 41 from coming out.

[0042] Working principle:

[0043] In use, first align the connecting buckle 5 at the bottom of the basket 2 with the groove on the connecting slide rail 3 and insert it. The connecting buckle 5 can be inserted into the mounting groove 31 through the groove. As the connecting buckle 5 is inserted, the third wedge-shaped surface 51 on both sides of the end of the connecting buckle 5 will contact the fourth wedge-shaped surface 412 at the end of the locking buckle 41. Due to the special design of the third wedge-shaped surface 51 and the fourth wedge-shaped surface 412, the contact between the two will drive the two locking buckles 41 to open. At this time, the first elastic unit 42 is compressed. When the connecting buckle 5 is fully inserted into the mounting groove 31 and contacts the abutment block 43, the fourth wedge-shaped surface 412 on the two locking buckles 41 separates from the third wedge-shaped surface 51 of the connecting buckle 5. Under the action of the first elastic unit 42, the locking buckle 41 resets and locks the connecting buckle 5, thereby realizing the quick installation and fixation of the basket 2.

[0044] When the basket 2 needs to be removed, the user can pull the unlocking lever 49. The two ends of the unlocking lever 49 are respectively connected to the movable levers 46 of the two locking components 4. Pulling the unlocking lever 49 will drive the two unlocking blocks 44 to move away from the abutment block 43. During the movement of the unlocking blocks 44, the second wedge surfaces 441 on both sides will contact the first wedge surfaces 411 on the locking buckles 41. Due to the special design of the second wedge surfaces 441 and the first wedge surfaces 411, the contact between the two will drive the two locking buckles 41 to keep moving away from each other. At this time, the connecting buckle 5 can remain active, and the user can remove the basket 2 from the connecting slide rail 3. The operation is simple and quick.

[0045] The modular, replaceable, multi-functional frame provided by this utility model, through the setting of connecting slide rail 3 and locking component 4, allows for the quick installation and removal of baskets 2 of different volumes. This enables the selection of a basket 2 with a suitable volume according to actual needs, greatly improving the practicality of the frame 1. Simultaneously, by setting the unlocking linkage 49, both locking components 4 can be unlocked simultaneously, further improving the ease of disassembling the basket 2.

[0046] In this utility model, the bottom of each basket 2 of different sizes is provided with a connecting buckle 5. The basket 2 can be slidably connected to the connecting slide rail 3 through the connecting buckle 5, and is engaged with the locking buckle 41 of the locking component 4 through the connecting buckle 5. The first elastic unit 42 drives the connecting buckle 5 to abut against the outer wall of the abutment block 43, so that different baskets 2 can be connected to the frame 1. This enables the modular combination of baskets 2 of different volumes with the frame 1, which can facilitate users to assemble according to different cargo needs and is convenient to use.

[0047] The first elastic unit 42 and the second elastic unit 47 mentioned in this article have elastic coefficients that meet the technical requirements of the present utility model.

[0048] Those skilled in the art will understand that other similar connection methods can also achieve this utility model. For example, welding, bonding, or screwing.

[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A modular replaceable multifunctional vehicle frame comprising a frame (1) and baskets (2), the number of said baskets (2) is several and their volumes are different, characterized in that, Also includes: The connecting slide rail (3) is provided on the frame (1). The connecting slide rail (3) is provided with a locking component (4) inside its end. The locking component (4) includes a locking buckle (41) symmetrically slidably connected to the connecting slide rail (3), a first elastic unit (42) provided between the connecting slide rail (3) and the locking buckle (41), and an abutment block (43) provided on the inner wall of the connecting slide rail (3). The connecting buckle (5) is set at the bottom of the basket (2); The basket (2) is connected to the connecting slide rail (3) by the connecting buckle (5), and the locking buckle (41) is driven by the first elastic unit (42) to abut against the connecting buckle (5) so that the basket (2) is locked to the connecting slide rail (3).

2. The modular, interchangeable utility vehicle frame of claim 1, wherein, The connecting slide rail (3) has an installation groove (31) at its end. The locking buckle (41) is slidably connected inside the installation groove (31). The first elastic unit (42) is disposed between the locking buckle (41) and the inner wall of the installation groove (31).

3. The modular, interchangeable utility vehicle frame of claim 1, wherein, The locking assembly (4) further includes an unlocking block (44). A connecting rod (45) is fixedly installed on the outer wall of one side of the abutment block (43). The unlocking block (44) is slidably connected to the connecting rod (45). The locking buckle (41) is provided with a first wedge-shaped surface (411). The unlocking block (44) is provided with a second wedge-shaped surface (441). The first elastic unit (42) drives the first wedge-shaped surface (411) of the locking buckle (41) to abut against the second wedge-shaped surface (441) on the unlocking block (44).

4. The modular, interchangeable utility vehicle frame of claim 3, wherein, A movable rod (46) is fixedly installed on the outer wall of one side of the unlocking block (44). One end of the movable rod (46) passes through and extends to the outside of the mounting groove (31). A second elastic unit (47) is sleeved on the outside of the movable rod (46). One end of the second elastic unit (47) abuts against the outside of the unlocking block (44), and the other end abuts against the inner wall of the mounting groove (31).

5. The modular, interchangeable utility vehicle frame of claim 4, wherein, A limiting block (48) is fixedly installed on the inner wall of the mounting groove (31).

6. The modular, interchangeable utility vehicle frame of claim 1, wherein, It also includes an unlocking link (49), and there are two connecting slide rails (3). The unlocking link (49) is connected to the locking components (4) in the two connecting slide rails (3).

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