Stroller

Abstract

A stroller, comprising a frame (1) and an additional structure (3) mounted on the frame (1), at least one of the frame (1) and the additional structure (3) being magnetic. The magnetic frame (1) or the magnetic additional structure (3) can correspondingly attract an object such as a hanging article, thereby expanding a storage space of the stroller, and improving the convenience and diversity of use of the stroller.

Description

stroller Technical Field

[0001] This application belongs to the field of infant and toddler product technology, and more specifically, relates to a stroller. Background Technology

[0002] Baby strollers are essential for infants and toddlers when going out. They are typically equipped with a storage basket for carrying items and hooks to hang backpacks, handbags, etc., reducing the burden on the baby. However, the storage capacity of baby strollers is still limited. Summary of the Invention

[0003] The purpose of this application is to provide a trolley to solve the technical problem of limited storage function of trolleys in the prior art.

[0004] The purpose of this application is also to provide a trolley whose frame has part or all of a magnetic feature that can attract items, so that the frame can directly attract items or attract accessories that have the function of hanging items. By providing a more flexible and stronger way to expand the functionality of the frame, the convenience and versatility of the trolley can be improved.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a trolley, including a frame and an additional structure mounted on the frame, wherein at least one of the frame and the additional structure is magnetic.

[0006] Optionally, the frame includes a tubular structure, at least a portion of which is magnetic.

[0007] Optionally, the magnetic tubular structure includes at least one of a handrail or a storage basket tube rack.

[0008] Optionally, all of the storage basket tube racks are magnetic.

[0009] Optionally, the tube connecting the frame to the front wheel is a front tube frame, the tube connecting the frame to the rear wheel is a rear tube frame, the connection point between the storage basket tube frame and the front tube frame is a first connection point, and the connection point between the storage basket tube frame and the rear tube frame is a second connection point; at least one of the first connection point, the second connection point, the storage basket tube frame located between the first connection point and the second connection point, and the storage basket tube frame located between the two second connection points is magnetic.

[0010] Optionally, the frame includes a tubular structure and a magnetic structure, wherein the tubular structure is hollow and the magnetic structure is circumferentially disposed on at least a portion of the tubular structure wall.

[0011] Optionally, in the circumferential direction of the tubular structure, the magnetic structure partially or completely covers the circumferential wall of the tubular structure.

[0012] Optionally, the magnetic structure is circumferentially disposed on the inner peripheral wall of the tubular structure; or, the magnetic structure is circumferentially disposed on the outer peripheral wall of the tubular structure, and a protective layer is provided on the surface of the magnetic structure.

[0013] Optionally, the tubular structure is made of plastic, aluminum, titanium alloy, or carbon fiber.

[0014] Optionally, the frame has a first magnetic structure, and the additional structure has a second magnetic structure for magnetic attraction with the first magnetic structure.

[0015] Optionally, the trolley may further include a storage accessory, wherein the additional structure is magnetically attached to the frame, the storage accessory is mounted on the additional structure, or the storage accessory is integrally disposed on the additional structure.

[0016] Optionally, the surface of the frame is formed with a mounting portion, the first magnetic structure is disposed at the mounting portion, and the additional structure is slidably disposed at the mounting portion.

[0017] Optionally, the additional structure includes a rigid part slidably disposed on the mounting portion and a soft fabric fixedly connected to the rigid part.

[0018] Optionally, the tubular structure of the frame has the first magnetic structure, and the additional structure is snapped and magnetically connected to the outer peripheral wall of the tubular structure.

[0019] Optionally, the first magnetic structure extends along the length of the tubular structure, and the additional structure is slidably sleeved and magnetically connected to the outer peripheral wall of the tubular structure.

[0020] Optionally, the additional structure includes a child safety seat adapter.

[0021] Optionally, the trolley also includes a magnetic control switch for controlling the magnetic attraction between the additional structure and the tubular structure.

[0022] Optionally, the frame is provided with a mounting part, and the additional structure is mounted to the frame through the mounting part, the additional structure being magnetic.

[0023] Optionally, the trolley may also include a storage accessory that is magnetically attached to the additional structure.

[0024] Optionally, the mounting part is a tubular structure of the vehicle frame, and the mounting part is integrally formed on the vehicle frame, with the additional structure snapped onto the tubular structure; or, the mounting part is a hinged structure, with the additional structure rotatably connected to the vehicle frame through the hinged structure.

[0025] Optionally, the mounting portion is formed by a protrusion on the surface of the frame, and the additional structure is hooked and magnetically connected to the mounting portion.

[0026] Optionally, the mounting part is a strap that is tied to the frame, and the additional structure is detachably connected to the strap.

[0027] The beneficial effects of the trolley provided in this application are as follows: Compared with the prior art, the trolley of this application includes a frame and an additional structure mounted on the frame. At least one of the frame and the additional structure is magnetic. The magnetic frame or additional structure can attract and hang items, thereby expanding the storage space of the trolley and improving the convenience and versatility of the trolley. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 is a three-dimensional structural diagram of the first type of trolley provided in the embodiment of this application.

[0030] Figure 2 is a three-dimensional structural diagram of the second type of trolley provided in the embodiment of this application.

[0031] Figure 3 is a three-dimensional structural diagram of the third type of trolley provided in the embodiments of this application.

[0032] Figure 4 is a three-dimensional structural diagram of the fourth type of trolley provided in the embodiments of this application.

[0033] Figure 5(a) and (b) are cross-sectional views of the tubular structure of the frame provided in the embodiments of this application.

[0034] Figure 6 is a partial structural schematic diagram of the trolley provided in an embodiment of this application.

[0035] Figure 7 is a partial structural diagram of the frame and additional structure of the fifth type of trolley provided in the embodiments of this application.

[0036] Figure 8 is a partial structural cross-sectional view of the frame and additional structure of the sixth type of trolley provided in the embodiments of this application.

[0037] Figure 9 is a partial structural schematic diagram of the seventh type of cart provided in the embodiments of this application.

[0038] Figure 10 is a partial structural schematic diagram of another form of the seventh type of cart provided in the embodiments of this application.

[0039] Figure 11 is a three-dimensional structural diagram of the eighth type of trolley provided in the embodiments of this application.

[0040] Figure 12 is a partial structural diagram of the eighth type of cart shown in Figure 11.

[0041] Figure 13 is a partial structural schematic diagram of the ninth type of cart provided in the embodiments of this application.

[0042] Figure 14 is a partial structural schematic diagram of the tenth type of cart provided in the embodiments of this application.

[0043] Figure 15 is a cross-sectional view along line AA in Figure 14.

[0044] Figure 16 is a partial structural schematic diagram of the eleventh type of trolley provided in the embodiment of this application.

[0045] Figure 17 is a partial structural schematic diagram of the twelfth type of cart provided in the embodiments of this application.

[0046] Figure 18 is a partial structural schematic diagram of the thirteenth type of cart provided in this application embodiment.

[0047] Figure 19 is a schematic diagram of the additional structure provided in the embodiment of this application used in conjunction with the carrying strap.

[0048] List of reference numerals: 1-Frame; 11-Tube structure; 111, 112-Mounting section; 113-Handrail; 1131-Transverse section; 1132-Longitudinal section; 1133-Sheet frame; 1134-First section; 1135-Second section; 1136-Third section; 1137-Fourth section; 114-Storage basket tube frame; 1141-First connection; 1142-Second connection; 115-Front tube frame; 116-Rear tube frame; 12- Magnetic structure; 1121, 13 - First magnetic structure; 2 - Seat; 3 - Additional structure; 31, 37 - Second magnetic structure; 32 - Sliding block; 33 - Rigid part; 34 - Soft fabric; 35 - Child seat adapter; 36 - Third magnetic structure; 38, 4, 6 - Storage accessories; 39 - Sliding protrusion; 41 - Hanging slot; 5 - Magnetic control switch; 61 - Fourth magnetic structure; 62 - Hook; 63 - Sliding recess; 7 - Handle. Detailed Implementation

[0049] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0050] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0051] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] The stroller provided in the embodiments of this application will now be described. The stroller may be an infant stroller, a pet stroller, or a grocery shopping stroller, etc. When the stroller is an infant stroller, it generally has a seat to accommodate infants and toddlers, as well as handles for pushing.

[0054] Please refer to Figures 1 and 6. The trolley includes a frame 1 and an additional structure 3 mounted on the frame 1. At least one of the frame 1 and the additional structure 3 is magnetic.

[0055] The frame 1 is the main supporting structure of the trolley. The frame 1 can be formed by connecting at least one of multiple tubes or multiple plates, and has functions such as a seat 2 and a mounting structure. The auxiliary structure 3 is installed on the frame 1. The connection method between the auxiliary structure 3 and the frame 1 is not limited here. The auxiliary structure 3 can be fixedly connected to the frame 1, or it can be movably connected to the frame 1. For example, the auxiliary structure 3 can be plugged into, snapped into, magnetically connected to, or slidably connected to the frame 1.

[0056] At least one of the frame 1 and the additional structure 3 is magnetic, including the following three cases: the frame 1 is magnetic; or, the additional structure 3 is magnetic; or, both the frame 1 and the additional structure 3 are magnetic. Here, "magnetic" can be understood as having a magnetic material, and its function is to attract magnetic accessories with magnetic materials such as iron, and also to attract magnetic accessories with magnetic poles opposite to those of the aforementioned magnetic materials. Therefore, the functionality and usability of the stroller can be further expanded through the magnetic frame 1 and / or the additional structure 3, allowing the stroller to be used with more types of accessories.

[0057] The trolley in the above embodiment includes a frame 1 and an additional structure 3 mounted on the frame 1. At least one of the frame 1 and the additional structure 3 is magnetic. The magnetic frame 1 or the additional structure 3 can attract and hang items, thereby expanding the storage space of the trolley and improving the convenience and versatility of the trolley.

[0058] In some embodiments of this application, referring to Figures 1 to 4, the frame 1 includes tubular structures 11, at least a portion of which are magnetic. In this embodiment, the tubular structure 11 is a part of the frame 1. The tubular structure 11 can be understood as a long, non-solid structure, and the cross-sectional shape of the tubular structure 11 can be rectangular, circular, irregular, etc. "At least a portion of the tubular structure 11 is magnetic" means that some tubular structures 11 of the frame 1 are magnetic and can attract corresponding accessories, or that all tubular structures 11 of the frame 1 are magnetic and can attract corresponding accessories.

[0059] By making at least a portion of the tubular structure 11 of the frame 1 magnetic, the tubular structure 11 can directly attract magnetic accessories, expanding the functionality and usable space of the trolley. The tubular structure 11 has high structural strength and is a major component of the frame 1, allowing for more flexible placement of magnetic materials and enriching its application scenarios.

[0060] In some embodiments of this application, please refer to FIG1. ​​All tubular structures 11 of the frame 1 are magnetic. For example, the frame 1 may be made entirely of magnetic metal parts, so that each position of the frame 1 is magnetic, maximizing the freedom to expand the functionality of the frame 1 and the adsorption position and adsorption force of accessories.

[0061] In some embodiments of this application, referring to Figures 2 to 4, some tubular structures 11 of the frame 1 are magnetic. Considering that if all tubular structures 11 are magnetic, the overall weight of the tubular structures 11 would be large, and the material cost would be high, the overall design of the frame 1 can balance the weight or overall cost of the frame 1, with only a portion of the frame structure of the frame 1 being made of magnetic metal rods. For example, making some tubular structures 11 magnetic not only provides more freedom in expanding the functionality of the frame 1, but also achieves both lightweight and low cost.

[0062] In some embodiments of this application, the frame 1 has an anchor point at the magnetic location, and the anchor point is designed to allow magnetic components to couple. It can be understood that the magnetic location on the frame 1 can be a specific magnetic point.

[0063] In some embodiments, a visual marker is provided at the magnetic site to facilitate quick identification and location by the user. The visual marker may be text, symbols, letters, patterns, etc.

[0064] In some embodiments of this application, referring to Figures 2 to 4, the magnetic tubular structure 11 includes at least one of a handrail 113 and a storage basket tube frame 114. It is understood that at least one of the handrail 113 and the storage basket tube frame 114 of the frame 1 is magnetic. The handrail 113 can be a tubular structure 11 that the user holds and pushes the trolley, or it can be a tubular structure 11 that the user holds and an adjacent handrail structure. The handrail 113 is generally located near the top of the frame 1, and also near the rear of the frame 1 for easy access. The storage basket tube frame 114 is a tube frame structure for mounting and supporting a storage basket. The storage basket can hold items, freeing up the user's hands. The storage basket tube frame 114 can be located at the bottom of the seat 2.

[0065] In some embodiments, the main structure of the frame is made of a non-magnetic frame material, with only the handlebar 113 of the frame 1 provided as a magnetic metal component. Other accessories attached to the handlebar 113 are provided above the trolley 1 near the user's handrail to increase storage space. For example, referring to Figure 3, the handlebar 113 includes a transverse section 1131 and a longitudinal section 1132 connected to each other, at least one of which is magnetic. The transverse section 1131 is generally used for the user's handrail, one end of the longitudinal section 1132 is connected to the transverse section 1131, and the other end of the longitudinal section 1132 can be connected to other tubular structures 11 of the frame 1 (e.g., the front tube frame 115 and the rear tube frame 116 hereinafter referred to as the front tube frame 115 and the rear tube frame 116, respectively).

[0066] In some embodiments, the main structure of the frame 1 is made of a non-magnetic frame material. Only a set of storage basket tubes 114 made of magnetic metal components are pivotally connected and extend forward and backward between the front tube 115 and the rear tube 116 of the frame 1. This expands the storage space of the trolley by attaching other accessories to these storage basket tubes 114, thereby increasing the overall storage space of the trolley, particularly under the trolley. For example, referring to Figure 2, the storage basket tubes 114 of the frame 1 are magnetic, allowing them to attract other magnetic accessories, thus expanding the functionality of the frame 1. In Figure 2, the dotted lines represent the storage basket tubes 114 (e.g., at least partially configured as magnetic tubular structures 11).

[0067] Optionally, the storage basket tube frame 114 can be located at the bottom of the seat 2, which can not only make full use of the remaining space at the bottom of the seat 2 and increase the storage space at the bottom of the frame 1, but also increase the mass of the bottom of the cart when the storage basket is filled with items, thus preventing the cart from tipping over.

[0068] Optionally, referring to Figure 2, the bottom of the frame 1 has a roller structure. The roller structure at the front of the bottom of the frame 1 is the front wheel, and the roller structure at the rear of the bottom of the frame 1 is the rear wheel. The tube connecting the frame 1 to the front wheel is the front tube frame 115, and the tube connecting the frame 1 to the rear wheel is the rear tube frame 116. The storage basket tube frame 114 can be connected to the front tube frame 115 and the rear tube frame 116, and the storage basket tube frame 114 is supported and connected by the front tube frame 115 and the rear tube frame 116.

[0069] In some embodiments, the entire storage basket tube rack 114 is magnetic, and it can be attracted to other magnetic accessories at any position.

[0070] In some embodiments, the connection between the storage basket tube frame 114 and the front tube frame 115 is a first connection 1141, and the connection between the storage basket tube frame 114 and the rear tube frame 116 is a second connection 1142. At least one of the first connection 1141, the second connection 1142, the storage basket tube frame 114 located between the first connection 1141 and the second connection 1142, and the storage basket tube frame 114 located between the two second connection 1142 is magnetic. When the first connection 1141 is magnetic, the storage basket tube frame 114 can be magnetically connected to the front tube frame 115; when the second connection 1142 is magnetic, the storage basket tube frame 114 can be magnetically connected to the rear tube frame 116. When the storage basket tube 114 located between the first connection 1141 and the second connection 1142 and / or the storage basket tube 114 located between the two second connection 1142 is magnetic, this section of the storage basket tube 114 can attract magnetic accessories.

[0071] Optionally, the storage basket tube frame 114 is rotatably connected to the front tube frame 115 and the rear tube frame 116 respectively, so that when the trolley is folded, the storage basket tube frame 114 can rotate and fold relative to the frame 1 for storage.

[0072] In some embodiments, as shown in Figure 3, the handlebar 113 of the frame 1 is magnetic, allowing it to attract other magnetic accessories and expand the functionality of the frame 1. As shown in Figure 3, the dotted line represents the handlebar 113.

[0073] Optionally, referring to Figure 3, the handrail 113 includes a cylindrical tube located at the top of the frame 1, and a sheet frame 1133 located below the cylindrical tube. In other embodiments, the handrail 113 may include only the cylindrical tube, or only the sheet frame 1133.

[0074] In some embodiments, as shown in Figure 4, both the handrail 113 and the storage basket tube 114 are magnetic, allowing them to attract other magnetic accessories and expand the functionality of the frame 1. As shown in Figure 3, the dotted line at the top of the drawing represents the magnetic handrail 113, and as shown in Figure 4, the dotted line at the bottom of the drawing represents the magnetic storage basket tube 114.

[0075] Optionally, as shown in Figure 4, the magnetic material on the handrail 113 is segmented, which can reduce the production cost and manufacturing difficulty of the handrail 113. For example, the magnetic material on the handrail 113 includes a first segment 1134, a second segment 1135, a third segment 1136, and a fourth segment 1137 that are separated from each other.

[0076] In some embodiments of this application, lightweight tubing can be used as the main body of the frame 1 while considering the weight of the frame 1. This lightweight tubing has a hollow structure, allowing magnetic metal components to be housed within it, thus giving the non-magnetic frame material a magnetic adsorption function. These lightweight tubing components can be lightweight materials such as plastic or aluminum. For example, please refer to Figure 5, where (a) and (b) are cross-sectional views of the tubing structure 11 of the frame 1. The frame 1 includes a tubing structure 11 and a magnetic structure 12. The tubing structure 11 is hollow, and the magnetic structure 12 is circumferentially disposed on (e.g., covering) at least a portion of the tubing wall of the tubing structure 11. The cross-section of the tubing structure 11 is a closed section, and the resulting internal space makes the tubing structure 11 a hollow structure. The magnetic structure 12 is magnetic and capable of adsorbing magnetic components. The magnetic structure 12 is circumferentially disposed on at least a portion of the pipe wall of the pipe structure 11, that is, the magnetic structure 12 is at least partially disposed on the circumferential wall of the pipe structure 11, wherein "circumferential" refers to the circumferential direction of the pipe structure 11, and "circumferential wall" refers to the pipe wall of the pipe structure 11 along the circumferential direction.

[0077] By hollowing out the tubular structure 11, the mass of the tubular structure 11 can be reduced, making the frame 1 lighter. The magnetic structure 12 is fixed to the tubular structure 11 by circumferentially covering it, which allows for more flexible design of the magnetic positions on the frame 1.

[0078] In some embodiments, the magnetic metal element is disposed within these lightweight tubing sections by covering a portion of the inner circumference of the tubing with the magnetic metal element. For example, referring to Figure 5, in the circumferential direction of the tubing structure 11, the magnetic structure 12 partially covers the inner circumferential wall of the tubing structure 11. In this embodiment, the magnetic structure 12 requires less material and is less expensive. While maintaining low cost, a tubing structure 11 with reliable magnetic attraction can still be provided, allowing magnetic fittings to be attracted to the tubing structure 11 at a specific angle or direction.

[0079] Optionally, referring to Figure 5(a), the number of magnetic structures 12 on the same cross-section of the tubular structure 11 is one, and the circumferential angle corresponding to the magnetic structure 12 is not limited here. For example, the circumferential angle corresponding to the magnetic structure 12 is between 10 degrees and 300 degrees.

[0080] Optionally, referring to Figure 5(b), there are two magnetic structures 12 on the same cross-section of the tubular structure 11. The circumferential angle corresponding to each magnetic structure 12 is not limited here, and the structural dimensions of the two magnetic structures 12 may be the same or different. Of course, in other embodiments, there may be three, four, or other magnetic structures 12 on the same cross-section of the tubular structure 11, with multiple magnetic structures 12 distributed sequentially and at intervals along the circumferential direction of the tubular structure 11. By setting the number of magnetic structures 12 to multiple, the central angle corresponding to the multiple magnetic structures 12 can be increased, the position and angle at which the accessories can be attracted can be increased, and the processing cost of the magnetic structures 12 can also be reduced.

[0081] In some embodiments, the magnetic metal components are disposed within these lightweight tubing sections by covering the entire circumference of the tubing with magnetic metal components. For example, in the circumferential direction of the tubing structure 11, the magnetic structure 12 completely covers the circumferential wall of the tubing structure 11. Understandably, the cross-section of the magnetic structure 12 is a closed shape, and the tubing structure 11, which is completely covered with the magnetic structure 12 circumferentially, can provide magnetic attraction without any blind spots, making the corresponding accessories less directional in use. Furthermore, for the tubing frame structure 11, which is completely covered with the magnetic structure 12 circumferentially, if accessories are mounted on the tubing of the frame 1, the tubing frame structure 11 can provide a more stable magnetic attraction effect for the accessories, and the load-bearing capacity of the accessories is also better.

[0082] In some embodiments, the cross-section of the tubular structure 11 may be a square, annular, or other shapes.

[0083] In some embodiments, the magnetic structure 12 is attached to the peripheral wall of the tubular structure 11. Understandably, the magnetic structure 12 is a thin-walled structure.

[0084] In some embodiments, the magnetic structure is filled inside the tubular structure 11, and correspondingly, the magnetic structure is a solid structure.

[0085] In some embodiments of this application, referring to Figures 5(a) and (b), the magnetic structure 12 is circumferentially disposed on (e.g., covering) the inner peripheral wall of the tubular structure 11. In this embodiment, the magnetic structure 12 can be hidden inside the tubular structure 11, which not only maintains the aesthetics of the outer surface of the frame 1, but also shields the magnetic structure 12, preventing it from wearing out or falling off during use.

[0086] In some embodiments of this application, the arrangement of the lightweight tubing and the magnetic metal components can be interchanged. That is, the magnetic metal component can be wrapped around the lightweight tubing, and then further covered with a decorative material (such as leather), thereby simplifying the manufacturing process while maintaining both functionality and aesthetics. For example, the magnetic structure 12 is circumferentially disposed on the outer peripheral wall of the tubing structure 11, and a protective layer is provided on the surface of the magnetic structure 12. The protective layer can both decorate and protect the magnetic structure 12. The placement of the magnetic structure 12 on the outer peripheral wall of the tubing structure 11 simplifies the manufacturing process of the frame 1, and the protective layer provides a better surface texture for the frame 1 and prevents the magnetic structure 12 from wearing out or falling off during use.

[0087] Optionally, the protective layer can be made of materials such as leather, velvet, or suede, which can enhance the overall quality of the frame 1.

[0088] Optionally, the surface of the protective layer may differ from the surface of the surrounding tubular structure 11, allowing for visual differentiation between the protective layer and the tubular structure 11, thus enabling users to quickly identify the location of the magnetic structure 12. Specifically, the protective layer and the tubular structure 11 may be made of different materials or be different colors, as long as they can be quickly distinguished by the naked eye.

[0089] In some embodiments of this application, the cross-section of the tubular structure 11 is an I-shaped, U-shaped or other non-closed cross-section, and the magnetic structure 12 is disposed on the surface of the tubular structure 11.

[0090] In some embodiments of this application, the frame 1 includes a tubular structure 11 and a magnetic structure 12, wherein the tubular structure 11 is made of plastic or aluminum. Plastic or aluminum are relatively lightweight, and using these materials can significantly reduce the weight of the frame 1, making it easy to carry and inexpensive. In other embodiments, the tubular structure 11 may also be made of lightweight materials with low density, such as titanium alloy or carbon fiber.

[0091] In some embodiments of this application, the lightweight tubing is provided with magnetic metal components in a manner such as partially providing magnetic metal components. The main body of the frame 1 can be fitted with tubing equipped with magnetic metal components, or with lightweight tubing that is not magnetic. However, at specific locations, the shape of the tubing is designed as an anchor point for coupling magnetic components (e.g., additional structure 3) to it, and magnetic material is provided within this anchor point, so that the anchor point also has the function of magnetically guiding, engaging, and stabilizing the attachment of magnetic materials. For example, referring to Figures 6 to 8, the frame 1 has a first magnetic structure 13, and the additional structure 3 has a second magnetic structure 31 for magnetically attracting the first magnetic structure 13. In this embodiment, the additional structure 3 is mounted to the frame 1 through the mutual attraction of the first magnetic structure 13 and the second magnetic structure 31. Without other structural constraints, the additional structure 3 is detachably connected to the frame 1.

[0092] By setting the additional structure 3 to magnetically connect with the frame 1, the installation and use of the additional structure 3 can be made more flexible. Users can choose to install or not install the additional structure 3, which increases the freedom of use when using the stroller.

[0093] In some embodiments, one of the first magnetic structure 13 and the second magnetic structure 31 is made of a magnet, and the other is made of a magnetically attracting material such as iron.

[0094] In some embodiments, the first magnetic structure 13 and the second magnetic structure 31 are both magnets. When the additional structure 3 is installed on the frame 1, the magnetic poles on adjacent sides of the first magnetic structure 13 and the second magnetic structure 31 are opposite, so that the additional structure 3 can be magnetically installed on the frame 1.

[0095] In some embodiments of this application, referring to Figure 6, the trolley also includes a storage accessory 4. An additional structure 3 is magnetically attached to the frame 1, and the storage accessory 4 is installed on or connected to the additional structure 3. The storage accessory 4 refers to an accessory capable of holding items; for example, the additional structure 3 may be a hook, a protruding structure, etc., and the storage accessory 4 may be a hanging basket, a hanging slot, etc. When installing the storage accessory 4, first, the additional structure 3 is magnetically attached to the frame 1, and then the storage accessory 4 is installed on the additional structure 3.

[0096] By attaching the accessory 4 to the additional structure 3, the functionality of the frame 1 can be further expanded, and the additional structure 3 can be removed from the frame 1 without affecting the independent use of the frame 1.

[0097] In some embodiments, the interior of the additional structure 3 has a second magnetic structure 31, and the interior of the mounting portion 111 of the frame 1 has a first magnetic structure 13.

[0098] In some embodiments, both the additional structure 3 and the storage accessory 4 have storage functions. For example, the additional structure 3 is a hook, and the storage accessory 4 is a hanging basket. The hook can be attached to the frame 1 for use alone, or the hanging basket can be hung on the hook to place items.

[0099] In some embodiments, the storage accessory 4 has a hanging groove 41, and the additional structure 3 is a circular protrusion or a strip protrusion. When the storage accessory 4 is installed on the additional structure 3, the circular protrusion or the strip protrusion slides into the hanging groove 41 accordingly. The hanging groove 41 makes it easier to assemble and disassemble the storage accessory 4.

[0100] Optionally, the storage accessory 4 also has hooks, with the hooks and mounting slots 41 located on opposite sides of the storage accessory 4, so as to prevent the protruding hooks from affecting the connection between the storage accessory 4 and the additional structure 3.

[0101] In some embodiments, the storage accessory 4 has a hanging hole, and the additional structure 3 is a circular protrusion. When the storage accessory 4 is installed on the additional structure 3, the circular protrusion passes through the hanging hole of the storage accessory 4, thereby allowing the storage accessory 4 to be hung on the hanging hole.

[0102] In some embodiments of this application, the frame 1 can be recessed to form a groove, or even extend the groove into a slide. A magnetic metal element is attached or embedded near the groove in the tubular structure 11, giving the entire slide a magnetic attraction. The hook body, conforming to the appearance of the groove or slide, is embedded within the groove or slide in a shape-adaptive manner. It can also be slidably adjusted and fixed at any point in the slide. Furthermore, these lightweight tubular components can also be designed with an external structure adapted to magnetic accessories (e.g., additional structure 3). For example, the external structure could be a slide, with a magnetic metal element attached or embedded inside the tubular component of the frame 1 near the slide, giving the entire slide a magnetic attraction. This allows the magnetic accessory to be freely adjusted in position on the slide. Through the matching tubular component and magnetic accessory, in addition to the existing magnetic attraction, an additional mechanical force is provided to secure the fit between the two. For example, referring to Figure 7, the surface of the frame 1 is formed with a mounting portion 111, a first magnetic structure 13 is disposed at the mounting portion 111, and an additional structure 3 is slidably disposed at the mounting portion 111. The mounting portion 111 being formed on the surface of the frame 1 means that the mounting portion 111 is located on the surface of the frame 1 and is integrally formed into the frame 1. The mounting portion 111 can be one of the following types: a tubular structure 11 of the frame 1, a recessed structure on the frame 1, or a protruding structure on the frame 1. When the first magnetic structure 13 is disposed at the mounting portion 111, the location of the mounting portion 111 becomes magnetic. When the additional structure 3 slides relative to the mounting portion 111, the additional structure 3 can be installed in different positions under magnetic attraction, making the position of the additional structure 3 more flexible and convenient for user adjustment and use.

[0103] In some embodiments, referring to FIG7, the mounting portion 111 is a sliding groove recessed on the surface of the frame 1, and the additional structure 3 has a sliding block 32 that can slide within the sliding groove, thus achieving a sliding connection between the additional structure 3 and the frame 1. In other embodiments, the mounting portion 111 is a sliding block 32 protruding from the surface of the frame 1, and the additional structure 3 has a recessed sliding groove, in which the sliding block 32 can slide.

[0104] Optionally, the first magnetic structure 13 is disposed at one of the sliding groove and the sliding block 32, and the second magnetic structure 31 is disposed at the other of the sliding groove and the sliding block 32.

[0105] Optionally, both the sliding block 32 and the sliding groove have rectangular cross-sections, so that the additional structure 3 can be directly installed at any position of the mounting part 111, and the sliding block 32 does not need to slide into the sliding groove from one end.

[0106] Optionally, the cross-section of the sliding block 32 and the sliding groove is a dovetail-shaped structure, which can constrain the additional structure 3 and prevent the additional structure 3 from falling off the frame 1. The additional structure 3 can only enter or slide out from one end of the mounting part 111.

[0107] In some embodiments, as shown in Figure 7, the storage accessory 38 is integrally disposed on the additional structure 3. The storage accessory 38 can be understood as a structural component for placing, hanging, or accommodating items. By providing the storage accessory 38, other items can be placed, hung, or accommodated, thus expanding the functionality of the frame 1.

[0108] Optionally, the sliding block 32 and the storage part 38 on the additional structure 3 are respectively provided on different sides of the additional structure 3, so as to prevent the mounting part 111 and the storage part 38 from interfering with each other when the mounting part 111 is engaged with the additional structure 3. For example, the storage part 38 and the sliding block 32 are respectively provided on the front and back of the additional structure 3.

[0109] Optionally, the storage accessories 38 include hooks, hanging holes, straps, shelves, storage slots, etc.

[0110] In some embodiments, the magnetic accessory (e.g., additional structure 3) may take the form of a magnetic strip, inserted into a groove provided by the frame 1 for attachment and adjustment. This arrangement of the magnetic strip is suitable for use with soft materials, such as fabric. By wrapping the magnetic strip with fabric and inserting it into the groove of the frame 1, the magnetic accessory can be attached to the frame 1. Simultaneously, by adjusting the position of the magnetic strip, the position of the fabric product including the fabric can be adjusted. For example, referring to FIG8, the additional structure 3 includes a rigid part 33 slidably disposed on the mounting part 111 and a soft fabric 34 fixedly connected to the rigid part 33. The rigid part 33 is a structure made of a relatively hard material, such as plastic, alloy, etc., while the soft fabric 34 is a foldable and deformable material. The rigid part 33 can slide relative to the additional structure 3, and correspondingly, it can drive the soft fabric 34 to slide relative to the additional structure 3, thereby adjusting the position and height of the soft fabric 34, increasing the trolley's usability.

[0111] Optionally, the mounting part 111 is a sliding groove, and at least a portion of the rigid part 33 is located in the sliding groove, thereby realizing the sliding connection between the additional structure 3 and the frame 1.

[0112] Optionally, the cross-section of the sliding groove is circular, and correspondingly, the cross-section of the portion of the rigid part 33 located within the sliding groove is also circular.

[0113] Optionally, the outer diameter R1 of the rigid part 33 is smaller than the groove opening height H of the sliding groove, and the outer diameter R2 of the soft fabric 34 after wrapping the rigid part 33 is larger than the groove opening height H of the sliding groove. In this embodiment, when installing the additional structure 3, the soft fabric 34 can be wrapped around the rigid part 33 and then squeezed into the sliding groove from the groove opening. During the assembly process, the soft fabric 34 will deform accordingly, allowing the additional structure 3 to enter the sliding groove.

[0114] Optionally, the outer diameter R1 of the cross-section of the rigid part 33 is greater than or equal to the groove height H of the sliding groove. At least one end of the sliding groove is open in the length direction, and the additional structure 3 can slide into the sliding groove through the open end in the length direction of the sliding groove. By setting the outer diameter R1 of the cross-section of the rigid part 33 to be greater than or equal to the groove height H of the sliding groove, the additional structure 3 is not easy to fall off from the groove opening of the sliding groove.

[0115] Optionally, the soft fabric 34 is wrapped and fixed to the surface of the rigid part 33. In this way, part of the soft fabric 34 is also located inside the sliding groove. When the rigid part 33 slides relative to the sliding groove, the sliding is more stable and the sliding noise is less.

[0116] Optionally, the soft fabric 34 is fixed to the side wall of the rigid part 33, specifically by means of adhesive bonding, heat pressing, or other methods.

[0117] Optionally, the soft fabric 34 is located inside the rigid part 33. In this embodiment, the soft fabric 34 does not affect the sliding of the rigid part 33, making the sliding of the rigid part 33 smoother and more unobstructed.

[0118] Optionally, the hard part 33 is a second magnetic structure 31.

[0119] Optionally, the side of the mounting portion 111 facing the rigid portion 33 is the first side, and the side of the mounting portion 111 facing away from the rigid portion 33 is the second side, and the first magnetic structure 13 is disposed on the second side of the mounting portion 111.

[0120] Optionally, the soft fabric 34 includes at least one of a canopy, a thermal cover, a sleeping bag, a rain cover, and a sunshade. The soft fabric 34 is slidably connected to the frame 1 via the rigid part 33, thus the position and height of the soft fabric 34 are adjustable.

[0121] In some embodiments of this application, referring to Figures 9 to 12, the tubular structure 11 of the frame 1 has a first magnetic structure 13, and the additional structure 3 has a second magnetic structure 31. The additional structure 3 is snapped and magnetically connected to the outer peripheral wall of the tubular structure 11. When the additional structure 3 is installed on the frame 1, the additional structure 3 is directly snapped to the tubular structure 11 of the frame 1, and the additional structure 3 is magnetically connected to the tubular structure 11.

[0122] By snapping and magnetically connecting the additional structure 3 to the tubular structure 11, the additional structure 3 can be installed using the tubular structure 11 without the need for an additional installation structure on the frame 1. At the same time, the additional structure 3 can be installed more stably on the frame 1.

[0123] In some embodiments, as shown in Figures 9 and 10, the additional structure 3 has a hook through which items can be hung.

[0124] In some embodiments, the frame 1 is entirely or partially made of magnetic metal, and the hook 3 is designed to fit the shape of the outer peripheral wall of the tubular structure 11, and is suspended on the frame 1 to hang items on the frame 1. For example, referring to Figures 9 to 12, the additional structure 3 has an arc portion that mates with the tubular structure 11, and the arc portion has a circumferential notch. The angle of the circumferential angle corresponding to the circumferential notch is not limited here.

[0125] Optionally, the circumferential angle corresponding to the circumferential notch is greater than or equal to 180 degrees. The snap-fit ​​between the arc portion and the pipe structure 11 can only limit the position of the additional structure 3, but cannot provide snap-fit ​​force for the additional structure 3.

[0126] Optionally, the circumferential angle corresponding to the circumferential notch is less than 180 degrees. The snap-fit ​​between the arc portion and the pipe structure 11 can provide snap-fit ​​force for the additional structure 3. Therefore, the connection between the additional structure 3 and the pipe structure 11 is more stable.

[0127] In some embodiments, the magnetic fitting (e.g., the additional structure 3) can be directly sleeved onto the tubular structure 11 in a covering manner, and the sleeved portion of the magnetic fitting has magnetic attraction. Combined with the tubular structure 11 with magnetic metal parts, the magnetic fitting can be used at any position on the tubular structure 11, increasing ease of use. Simultaneously, the sleeved arrangement of the magnetic fitting onto the tubular structure 11 increases the contact area between the magnetic fitting and the tubular structure 11, enhancing the magnetic attraction and effectively increasing the load-bearing capacity and stability of the magnetic fitting. For example, referring to Figures 9 to 12, the first magnetic structure 13 extends along the length of the tubular structure 11, and the additional structure 3 is slidably sleeved and magnetically connected to the outer peripheral wall of the tubular structure 11. The first magnetic structure 13 is a strip structure, allowing the additional structure 3 to be selectively engaged at different positions on the tubular structure 11, thereby adjusting the position of the additional structure 3, enriching usage scenarios, and increasing the frequency of use of the additional structure 3.

[0128] For example, in Figures 9 to 12, the dashed part of the tubular structure 11 is the first magnetic structure 13, and the first magnetic structure 13 extends along the length direction of the tubular structure 11.

[0129] In some embodiments, the magnetic accessory (e.g., additional structure 3) can be a stroller seat or car seat adapter with a magnetic sleeve. One end of the adapter is sleeved onto the frame 1, and the sleeve contains a magnetic material that can attract the magnetic tubular structure 11 of the frame 1 to fix it to the frame 1. Because the adapter is sleeved, its height can be freely adjusted within the range of the magnetic tubular structure 11 of the frame 1, increasing the flexibility of the adapter's use. Another part of the adapter is an adapter that mates with the stroller seat or car seat, allowing the stroller seat or car seat to be detachably mounted on the frame 1. For example, referring to Figures 1, 11, and 12, additional structure 3 has a car seat adapter 35. A stroller generally includes two parts: a frame 1 and a seat 2. The seat 2 is mounted on the frame 1 and is detachably connected to the frame 1. Child safety seats are generally installed in cars for use. Some child safety seats can also be used with the frame 1 of a stroller. The frame 1 of such a stroller is equipped with a child safety seat adapter 35. When the child safety seat is installed on the frame 1, the child safety seat is specifically connected to the child safety seat adapter 35 on the frame 1.

[0130] By designing a safety seat adapter 35 on the additional structure 3, the vehicle frame 1 can be used with a safety seat. Moreover, the additional structure 3 is magnetically connected to the tubular structure 11, can slide on the tubular structure 11, and can be positioned at any position of the magnetic part of the tubular structure 11 under magnetic attraction. This allows the height and other positions of the safety seat adapter 35 to be adjusted to fit different models of safety seats.

[0131] In some embodiments, the trolley may be equipped with a magnetic control switch for reversing the polarity of the magnetic material. This magnetic control switch temporarily changes the magnetic polarity, weakening or even eliminating the magnetic attraction between the magnetic component (e.g., the additional structure 3) and the frame 1. Thus, the magnetic component can slide on the frame 1 when the magnetic attraction weakens, or detach from the frame 1 when the magnetic attraction disappears. For example, referring to Figure 13, the trolley also includes a magnetic control switch 5 for controlling the magnetic attraction between the additional structure 3 and the tubular structure 11. Specifically, the magnetic control switch 5 controls the magnetic attraction between the first magnetic structure 13 and the second magnetic structure 31. After the additional structure 3 is engaged with the tubular structure 11, the first magnetic structure 13 and the second magnetic structure 31 attract each other magnetically.

[0132] The additional structure 3 is attached to the tubular structure 11. When it is necessary to remove the additional structure 3 from the tubular structure 11, the magnetic control switch 5 reduces, eliminates, or changes the magnetic attraction between the first magnetic structure 13 and the second magnetic structure 31 into a magnetic repulsion force, thereby making it easy to remove the additional structure 3 from the tubular structure 11.

[0133] By setting a magnetic control switch 5, the magnetic attraction between the additional structure 3 and the tubular structure 11 can be changed, so that the additional structure 3 can be easily attracted to the tubular structure 11 and can also be easily removed from the tubular structure 11.

[0134] Optionally, the magnetic control switch 5 can be a push-button or a toggle button.

[0135] Optionally, one of the first magnetic structure 13 and the second magnetic structure 31 is an electromagnet, and the other is an iron component. The magnetic control switch 5 is used to control the electromagnet to be energized or de-energized. When the electromagnet is energized, the first magnetic structure 13 and the second magnetic structure 31 attract each other, and the additional structure 3 can be adsorbed onto the tubular structure 11. When the electromagnet is de-energized, the magnetic attraction between the first magnetic structure 13 and the second magnetic structure 31 disappears, and the additional structure 3 can be easily removed from the tubular structure 11.

[0136] Optionally, both the first magnetic structure 13 and the second magnetic structure 31 are magnets. The magnetic control switch 5 can change the magnetic poles of the first magnetic structure 13 or the second magnetic structure 31. When the additional structure 3 is installed on the tubular structure 11, the adjacent sides of the first magnetic structure 13 and the second magnetic structure 31 are opposite magnetic poles, and the additional structure 3 and the tubular structure 11 attract each other. When it is necessary to remove the additional structure 3 from the tubular structure 11, the magnetic poles of one of the magnetic structures 12 are changed so that the adjacent sides of the first magnetic structure 13 and the second magnetic structure 31 are like magnetic poles, and the additional structure 3 and the tubular structure 11 repel each other.

[0137] In some embodiments of this application, the main structure of the frame 1 is made of a non-magnetic frame material, and a functional structure (e.g., an additional structure 3) is provided on the frame 1, and all or part of this functional structure is made of magnetic metal. Thus, the functional structure can be adapted to various forms of magnetic accessories to achieve functional expansion. In one embodiment, magnetic attraction is provided on the functional structure of the frame 1, and other items are supported on the frame 1 via magnetic hooks. For example, referring to Figures 14 and 15, the frame 1 is provided with a mounting part 112, and the additional structure 3 is mounted to the frame 1 through the mounting part 112. The additional structure 3 is magnetic. The mounting part 112 is used to mount the additional structure 3, and the connection method between the additional structure 3 and the frame 1 is not limited here. The magnetic nature of the additional structure 3 means that the additional structure 3 can be magnetically connected to other magnetic objects. Thus, other objects can be connected to the additional structure 3, thereby expanding the function and usable space of the additional structure 3.

[0138] In some embodiments, the additional structure 3 is detachably connected to the frame 1. The additional structure 3 can be installed on or not installed on the frame 1 according to user needs, providing more options for user use.

[0139] Optionally, the additional structure 3 and the frame 1 are snapped together by the mounting part 112. That is, there may be no magnetic connection between the frame 1 and the additional structure 3.

[0140] In some embodiments, referring to FIG14, the tubular structure 11 of the frame 1 itself serves as the mounting portion 112, and the additional structure 3 is snapped onto the tubular structure 11. It can be understood that in this embodiment, the mounting portion 112 is part of the frame 1 and does not protrude from the surface of the frame 1.

[0141] The magnetic components of the additional structure 3 are not limited here. Taking Figure 14 as an example, the dashed lines represent the magnetic components of the additional structure 3.

[0142] In some embodiments, as shown in Figures 14 and 15, the additional structure 3 is provided with a third magnetic structure 36, and the trolley also includes a storage accessory 6, which is magnetically connected to the additional structure 3 for easy assembly and disassembly. Specifically, the storage accessory 6 has a fourth magnetic structure 61, and the third magnetic structure 36 and the fourth magnetic structure 61 are magnetically connected to each other, so that the storage accessory 6 and the additional structure 3 are magnetically connected to each other. By providing the storage accessory 6 that is magnetically connected to the additional structure 3, the usable space of the frame 1 can be further expanded.

[0143] Optionally, the frame 1 and the additional structure 3 have a magnetic structure for magnetic connection, and the additional structure 3 and the storage accessory 6 also have a magnetic structure for magnetic connection. In this way, the additional structure 3 can be easily attached to and detached from the frame 1, and the storage accessory 6 can be easily attached to and detached from the additional structure 3.

[0144] Optionally, one of the third magnetic structure 36 and the fourth magnetic structure 61 is made of a magnet, and the other is made of a magnetically attracting material such as iron.

[0145] Optionally, both the third magnetic structure 36 and the fourth magnetic structure 61 are magnets. When the additional structure 3 is installed on the frame 1, the magnetic poles on adjacent sides of the third magnetic structure 36 and the fourth magnetic structure 61 are opposite, so that the storage accessory 6 can be magnetically attracted to the additional structure 3.

[0146] Optionally, the third magnetic structure 36 is exposed on the surface of the additional structure 3, or the third magnetic structure 36 is enclosed inside the additional structure 3.

[0147] Optionally, the fourth magnetic structure 61 is exposed on the surface of the storage accessory 6, or the fourth magnetic structure 61 is enclosed inside the storage accessory 6.

[0148] Optionally, as shown in Figure 15, the storage accessory 6 is slidably connected to the additional structure 3. One of the storage accessory 6 and the additional structure 3 is provided with a sliding recess 63, and the other is provided with a sliding protrusion 39, so as to realize the sliding connection between the storage accessory 6 and the additional structure 3.

[0149] Optionally, referring to Figure 15, the storage accessory 6 has a hook 62. By magnetically connecting the storage accessory 6 to the additional structure 3, the additional structure 3 can function as a hook for hanging items. For example, the hook 62 can be formed as a slot with a circumferential notch on the storage accessory 6, through which items can enter the interior of the slot, thereby reducing the possibility of items falling off the storage accessory 6.

[0150] In some embodiments, the additional structure 3 is a storage basket, cup holder, magnetic fastener, or other structure, and the storage accessory 6 is a hook, hanging basket, or other structure. For example, the storage basket, as the additional structure 3, is connected to the frame 1. The frame 1 has anchor points for the storage basket to be attached thereto, and the outer side of the storage basket is provided with a concealed or exposed magnetic structure to be used in conjunction with other magnetic accessories to expand the storage space.

[0151] In some embodiments of this application, referring to FIG16, the mounting part 112 is a hinged structure, and the additional structure 3 is rotatably connected to the frame 1 via the hinged structure. Understandably, the additional structure 3 is hinged to the frame 1 and can rotate relative to the frame 1, allowing the additional structure 3 to adjust its position. The additional structure 3 is magnetic, and its magnetic position is not limited here. The user can attach other magnetic structures to the additional structure 3 to expand the functionality of the frame 1.

[0152] By rotatably connecting the additional structure 3 to the frame 1, the additional structure 3 can rotate relative to the frame 1, thereby adjusting the position of the additional structure 3, making it more convenient for the user to use.

[0153] In some embodiments, referring to Figure 16, the additional structure 3 is a hanging bracket, which is pivotally connected to the frame 1 and can be adjusted to different usage positions relative to the frame 1. All or part of the structure of the hanging bracket is made of magnetic metal parts and can be used in conjunction with other magnetic accessories. The dotted lines on the hanging bracket represent the magnetic parts. The hanging bracket can not only attract and connect magnetic storage accessories 6, but also allow storage accessories 6 with hooks to be hung, thereby expanding the storage space above the trolley.

[0154] In some embodiments, there are two hinge structures, and the two ends of the additional structure 3 are respectively connected to the hinge structures, so that the rotation of the additional structure 3 is more stable.

[0155] In some embodiments, the frame 1 is provided with magnetic protrusions, and a magnetic element is embedded inside the tube to form the protrusions, thereby guiding, engaging, and stably attaching accessories with magnetic fasteners. For example, referring to FIG17, the mounting part 112 is integrally formed on the frame 1. The mounting part 112 does not need to be connected to the frame 1 by means of installation, and the mounting part 112 is not easily lost.

[0156] Optionally, referring to Figure 17, the mounting part 112 is formed by a protrusion on the surface of the frame 1, and the additional structure 3 is hooked and magnetically connected to the mounting part 112. The mounting part 112 is a protruding structure, and when the additional structure 3 is hooked onto the protruding structure, the additional structure 3 and the protruding structure are also magnetically attracted to each other, thereby making the connection between the additional structure 3 and the mounting part 112 more stable.

[0157] Optionally, the additional structure 3 is provided with a sliding groove, and when the additional structure 3 is attached to the protruding structure, the protruding structure slides within the sliding groove. The bottom end of the sliding groove is open, and the top end is closed. The protruding structure enters the sliding groove from the bottom end, and the protruding structure is stopped and restrained by the top end of the sliding groove.

[0158] In some embodiments of this application, the mounting part 112 is attached to any position on the frame 1. One end can be attached to the frame 1 by means of hook and loop, binding, or wrapping to increase the degree of freedom of use, while the other end provides a magnetic fastener structure, which can be used to cooperate with other magnetic accessories with corresponding fastener structures (such as the additional structure 3) to expand the storage space above the trolley. For example, referring to FIG18, the mounting part 112 has a first magnetic structure 1121, and the additional structure 3 has a second magnetic structure 37 for magnetic attraction with the first magnetic structure 1121. The additional structure 3 is mounted to the frame 1 by its mutual magnetic attraction with the mounting part 112. Since the additional structure 3 and the mounting part 112 are magnetically attracted to each other, the additional structure 3 can be installed on the mounting part 112 and can also be removed from the mounting part 112.

[0159] By providing a first magnetic structure 1121 in the mounting part 112 and a second magnetic structure 37 in the additional structure 3, the additional structure 3 can be detachably connected to the mounting part 112, and the user can choose whether to install the additional structure 3 according to the usage scenario.

[0160] In some embodiments of this application, referring to FIG18, the mounting part 112 is a strap that is tied to the frame 1, and the additional structure 3 is detachably connected to the strap via a first magnetic structure 1121 and a second magnetic structure 37. When using the additional structure 3 in this embodiment, the mounting part 112 is first tied to the frame 1, and then the additional structure 3 is magnetically attracted to the mounting part 112.

[0161] By setting the mounting part 112 as a strap, the mounting part 112 can be removed from the frame 1. When the additional structure 3 is not used, both the additional structure 3 and the mounting part 112 can be removed from the frame 1.

[0162] In some embodiments, the straps have Velcro, buckles, etc., so that after the straps are wrapped around the frame 1, the two ends of the straps can be connected to each other, so that the straps are tied to the frame 1.

[0163] In some embodiments, the first magnetic structure 1121 is disposed at the end of the strap, and the additional structure 3 is connected to the strap by the mutual magnetic attraction between the first magnetic structure 1121 and the second magnetic structure 37.

[0164] In some embodiments, there are multiple straps, each strap is provided with a first magnetic structure 1121, and the additional structure 3 is provided with multiple second magnetic structures 37. The number of second magnetic structures 37 on the additional structure 3 is the same as the number of first magnetic structures 1121, and also the same as the number of straps. Therefore, one additional structure 3 is connected to multiple straps, which makes the additional structure 3 more stable after being connected to the straps and less likely to fall off.

[0165] The additional structure 3 can be used alone, or as shown in Figure 19, the additional structure 3 can be used in conjunction with the carrying strap 7. The carrying strap 7 is provided with a first magnetic structure 1121. The first magnetic structure 1121 and the second magnetic structure 37 of the additional structure 3 are magnetically attracted to each other. Therefore, the carrying strap 7 is connected to the additional structure 3 for the user to carry.

[0166] It should be noted that the terms "front" and "rear" in the accompanying drawings are only used to illustrate the positional relationship in conjunction with the embodiments of this application, and do not limit the actual direction.

[0167] The above embodiments can be combined with each other without conflict.

[0168] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A trolley, comprising a frame and additional structures mounted on the frame, wherein, At least one of the frame and the additional structure is magnetic.

2. The trolley as described in claim 1, wherein, The frame includes a tubular structure, at least a portion of which is magnetic.

3. The trolley as described in claim 2, wherein, The magnetic tubular structure includes at least one of a handrail or a storage basket tube frame.

4. The trolley as described in claim 3, wherein, The tube connecting the frame to the front wheel is the front tube frame, the tube connecting the frame to the rear wheel is the rear tube frame, the connection between the storage basket tube frame and the front tube frame is the first connection point, and the connection between the storage basket tube frame and the rear tube frame is the second connection point. At least one of the first connection, the second connection, the storage basket tube located between the first connection and the second connection, and the storage basket tube located between the two second connections is magnetic.

5. The trolley as described in claim 1, wherein, The frame includes a tubular structure and a magnetic structure, wherein the tubular structure is hollow and the magnetic structure is circumferentially disposed on at least a portion of the tubular wall.

6. The trolley as described in claim 5, wherein, In the circumferential direction of the tubular structure, the magnetic structure partially or completely covers the circumferential wall of the tubular structure.

7. The trolley as described in claim 5, wherein, The magnetic structure is circumferentially disposed on the inner peripheral wall of the tubular structure; or, the magnetic structure is circumferentially disposed on the outer peripheral wall of the tubular structure, and the surface of the magnetic structure is provided with a protective layer.

8. The trolley as claimed in claim 1, wherein, The vehicle frame has a first magnetic structure. The additional structure has a second magnetic structure for magnetic attraction with the first magnetic structure.

9. The trolley as claimed in claim 8, wherein, The trolley also includes a storage accessory, the additional structure being magnetically attached to the frame, the storage accessory being installed on the additional structure, or the storage accessory being integrally set into the additional structure.

10. The trolley as claimed in claim 8, wherein, The surface of the frame is formed with a mounting portion, the first magnetic structure is disposed at the mounting portion, and the additional structure is slidably disposed at the mounting portion.

11. The trolley as claimed in claim 10, wherein, The additional structure includes a rigid part slidably disposed on the mounting portion and a soft fabric fixedly connected to the rigid part.

12. The trolley as claimed in claim 8, wherein, The tubular structure of the frame has the first magnetic structure, and the additional structure is snapped and magnetically connected to the outer peripheral wall of the tubular structure.

13. The trolley as claimed in claim 12, wherein, The first magnetic structure extends along the length of the tubular structure, and the additional structure is slidably sleeved and magnetically connected to the outer peripheral wall of the tubular structure.

14. The trolley as claimed in claim 13, wherein, The additional structure includes a child safety seat adapter.

15. The trolley as claimed in any one of claims 8 to 14, wherein, The trolley also includes a magnetic control switch for controlling the magnetic attraction between the additional structure and the frame.

16. The trolley as claimed in claim 1, wherein, The frame is provided with a mounting part, and the additional structure is mounted to the frame through the mounting part. The additional structure is magnetic.

17. The trolley as claimed in claim 16, wherein, The trolley also includes a storage accessory that is magnetically attached to the additional structure.

18. The trolley as claimed in claim 16, wherein, The mounting part is a tubular structure of the vehicle frame, and the mounting part is integrally formed on the vehicle frame, with the additional structure snapped onto the tubular structure; or, the mounting part is a hinged structure, with the additional structure rotatably connected to the vehicle frame through the hinged structure.

19. The trolley as claimed in claim 16, wherein, The mounting portion is formed by a protrusion on the surface of the frame, and the additional structure is hooked and magnetically connected to the mounting portion.

20. The trolley as claimed in claim 16, wherein, The mounting part is a strap that is tied to the frame, and the additional structure is detachably connected to the strap.

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