Cart folding self-standing orientation structure
By adding directional holes and directional components to the front wheel structure of the trolley, combined with traction and resetting components, the problem of the trolley being unable to stand upright or being unstable after folding is solved, achieving more stable and convenient folding and storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WOHO (SHANGHAI) BABY PROD CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-28
AI Technical Summary
Existing strollers cannot stand upright or are unstable when folded, resulting in inconvenience in operation, large space occupation, and safety hazards.
Orientation holes are added to the front wheel structure, and the directional parts are connected to the orientation holes for assembly. Combined with the traction parts and the reset parts, the movement direction of the front wheels is restricted to ensure that the trolley is self-standing and stable after folding.
It improves the self-standing stability of the stroller after folding, reduces safety hazards, simplifies operation steps, and enhances ease of use and stability.
Smart Images
Figure CN224170995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trolley technology, specifically to a folding self-aligning structure for a trolley. Background Technology
[0002] As an important tool, the ease of folding a stroller and its size after folding are key concerns for consumers. To facilitate carrying, transporting, and storing, strollers are usually designed with a foldable structure so that they can be folded up when not in use.
[0003] Some of the existing strollers have the following problems:
[0004] On the one hand, many strollers cannot stand upright after being folded, requiring the entire stroller to be flipped 90 degrees before lying down, which is extremely inconvenient to operate. This makes it difficult to store the stroller after it is folded up, and it takes up a lot of space.
[0005] On the other hand, there are some trolleys that can stand upright and fold, but their self-standing stability is poor. This is because the front wheels of such trolleys are usually designed as swivel wheels. When standing upright, the swivel wheels cannot provide stable support direction and are prone to rolling or turning, causing the trolley's center of gravity to shift, which in turn makes it easy to tip over. This poses a safety hazard and makes the trolley easy to damage.
[0006] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content
[0007] The purpose of this invention is to provide a folding, self-aligning, and directional structure for a trolley.
[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0009] A folding self-aligning structure for a trolley includes a front support assembly and a rear support assembly rotatably disposed therebetween. The front support assembly includes a front wheel structure with an aligning hole. The folding self-aligning structure for the trolley further includes:
[0010] A directional component is used to be fitted into the directional hole to restrict the direction of movement of the front wheel structure;
[0011] A traction component, with one end acting on the directional component and the other end acting on the rear support assembly, serves as a component for causing the directional component to separate from the directional hole;
[0012] A reset member, at least acting on the orientation member, serves as a component for facilitating the resetting insertion assembly of the orientation member and the orientation hole;
[0013] The folding self-aligning structure of the trolley has an oriented state and an oriented de-aligning state:
[0014] In the oriented state, the oriented component is inserted and assembled with the oriented hole;
[0015] In the directional release state, the rear support assembly, through its own movement and the traction member, causes the directional member to separate from the directional hole.
[0016] This application adds directional holes to the front wheel structure and sets up directional parts to be inserted and assembled with the directional holes. By restricting the movable direction of the front wheel structure, the self-standing stability of the trolley after folding and storing is improved, avoiding damage to the trolley due to easy tipping, reducing safety hazards and improving user experience.
[0017] In the above solution, when the trolley is unfolded, the rear support assembly needs to rotate. During this process, the rear support assembly pulls the traction component through its own movement, which in turn pulls the directional component, causing the directional component to separate from the directional hole. Based on this, on the one hand, it avoids the need for an additional step of separately separating the directional component and the directional hole when the trolley is unfolded and used, thereby improving the user's ease of operation and user experience by reducing the number of operation steps; on the other hand, the unfolded rear support assembly fixes the directional component through the traction component, avoiding the need for the directional component and directional hole to be reassembled during the use of the trolley, ensuring the stable use of the trolley.
[0018] When the trolley is folded and stored, the reset component prompts the orienting component to reset and insert into the orienting hole, avoiding the need for an additional step of resetting and inserting the orienting component into the orienting hole. This further improves the user's ease of operation and user experience by reducing the number of operation steps.
[0019] The repositioning and insertion assembly of the directional component and the directional hole can also be achieved with the help of gravity.
[0020] The shapes of the directional components and directional holes are not specifically designed; they only need to meet the usage requirements.
[0021] One end of the reset component acts on the orientation component, while the other end can act on other components within the front wheel structure or front bracket assembly.
[0022] The front and rear support assemblies are standard structures on the trolley and will not be described in detail here.
[0023] The front wheel structure is also a common structure on a stroller. Here is an example to further illustrate: the front wheel structure can be understood as a swivel wheel, which can move in several directions. When it is restricted, it can be understood as only being able to move in a specific direction, such as only being able to move in two directions in a predetermined direction.
[0024] In a further technical solution, the traction component includes:
[0025] The traction unit is connected to the directional component;
[0026] A sliding part is connected to the traction part and slidably disposed on the front support assembly.
[0027] To further clarify, taking the sliding part as an example, its sliding arrangement is located in the front support assembly, which can be understood as being slidably connected to the support structure within the front support assembly.
[0028] When the trolley is unfolded, the rear support assembly needs to rotate. During this process, the rear support assembly drives the sliding part through its own movement, which in turn drives the traction part. Finally, the traction part pulls the guide component, causing it to separate from the guide hole. Based on this, on the one hand, it avoids the need for an additional step of separating the guide component from the guide hole when the trolley is unfolded, improving user convenience and experience by reducing operational steps; on the other hand, the unfolded rear support assembly uses the traction part to fix the guide component, preventing the guide component from re-engaging with the guide hole during trolley use and ensuring stable trolley operation.
[0029] In a further technical solution, the traction unit is configured as a traction steel wire.
[0030] The traction steel wire ensures the long-term use of the traction unit and guarantees the reliability of the transmission between the rear support assembly and the directional component.
[0031] In a further technical solution, the rear support assembly is provided with a groove, and a portion of the sliding part is located within the groove;
[0032] In the orientation-released state, the rear support assembly moves, and the sliding part is driven by the groove. The sliding part causes the orientation member to separate from the orientation hole through the traction part.
[0033] The groove can be understood as a cam groove.
[0034] This embodiment clarifies the method by which the rear support assembly drives the sliding part. The method is simple, reduces the risk of failure, and does not require additional structure, thus reducing structural costs.
[0035] In a further technical solution, the directional component is configured as a directional pin.
[0036] This embodiment clarifies the specific structure of the orientation component, which is simple in structure, avoids increasing structural costs, and reduces the risk of failure.
[0037] The directional pin is mounted on the front wheel structure and can slide up and down.
[0038] In a further technical solution, the reset element is configured as a compression spring.
[0039] This embodiment clarifies the specific structure of the reset component, which is simple and further avoids increasing structural costs, and further reduces the risk of failure.
[0040] In summary, this application has a simple structure, low cost, low risk of failure, and is easy to operate.
[0041] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.
[0042] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.
[0043] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.
[0044] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.
[0045] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.
[0046] The working principle and advantages of this utility model are as follows:
[0047] This application adds directional holes to the front wheel structure and sets up directional parts to be inserted and assembled with the directional holes. By restricting the movable direction of the front wheel structure, the self-standing stability of the trolley after folding and storing is improved, avoiding damage to the trolley due to easy tipping, reducing safety hazards and improving user experience.
[0048] When the trolley is unfolded, the rear support assembly needs to rotate. During this process, the rear support assembly pulls the traction component through its own movement, which in turn pulls the directional component, causing the directional component to separate from the directional hole. Based on this, on the one hand, it avoids the need for an additional step of separately separating the directional component and the directional hole when the trolley is unfolded and in use, improving user convenience and experience by reducing operational steps; on the other hand, the unfolded rear support assembly uses the traction component to fix the directional component, preventing the directional component from re-inserting and reassembling with the directional hole during the trolley's use, ensuring stable use of the trolley.
[0049] When the trolley is folded and stored, the reset component prompts the orienting component to reset and insert into the orienting hole, avoiding the need for an additional step of resetting and inserting the orienting component into the orienting hole. This further improves the user's ease of operation and user experience by reducing the number of operation steps.
[0050] In summary, this application has a simple structure, low cost, low risk of failure, and is easy to operate. Attached Figure Description
[0051] Figure 1 This is one of the schematic diagrams showing the unfolded state of the folding self-aligning structure of the trolley according to an embodiment of this utility model;
[0052] Figure 2 This is a schematic diagram of the folding self-aligning structure of the trolley according to an embodiment of the present invention.
[0053] Figure 3 This is the second schematic diagram of the unfolded state of the folding self-aligning structure of the trolley according to an embodiment of this utility model;
[0054] Figure 4 This is a partial structural diagram of the rear support assembly according to an embodiment of the present utility model;
[0055] Figure 5 This is one of the partial structural schematic diagrams of the folding self-aligning orientation structure of the trolley according to an embodiment of this utility model;
[0056] Figure 6 for Figure 5 Enlarged view of point A in the middle;
[0057] Figure 7 This is a second partial structural schematic diagram of the folding self-aligning directional structure of the trolley, according to an embodiment of this utility model.
[0058] In the above attached figures: 1. Front support assembly; 11. Front wheel structure; 111. Orientation hole; 2. Rear support assembly; 21. Groove; 3. Orientation component; 4. Traction component; 41. Traction part; 42. Sliding part; 5. Reset component. Detailed Implementation
[0059] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0060] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.
[0061] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.
[0062] See Figures 1-7 A folding self-aligning structure for a trolley includes a front support assembly 1 and a rear support assembly 2 rotatably arranged between them. The front support assembly 1 includes a front wheel structure 11, which has an aligning hole 111. The folding self-aligning structure for the trolley also includes:
[0063] The directional component 3 is used to be inserted and assembled with the directional hole 111 to restrict the movement direction of the front wheel structure 11;
[0064] The traction member 4 acts on the directional member 3 at one end and on the rear support assembly 2 at the other end, serving as a component for causing the directional member 3 to separate from the directional hole 111;
[0065] The reset member 5 acts at least on the orientation member 3, serving as a component for facilitating the resetting insertion assembly of the orientation member 3 and the orientation hole 111;
[0066] The folding self-aligning structure of the trolley has an oriented state and an oriented de-aligning state:
[0067] In the oriented state, the oriented component 3 is inserted and assembled with the oriented hole 111;
[0068] In the directional release state, the rear support assembly 2 causes the directional member 3 to separate from the directional hole 111 through its own movement and the traction member 4.
[0069] This application adds a directional hole 111 to the front wheel structure 11 and sets a directional component 3 to be inserted and assembled with the directional hole 111. By restricting the movable direction of the front wheel structure 11, the self-standing stability of the trolley after folding and storing is improved, avoiding damage to the trolley due to easy tipping over, and improving the user experience.
[0070] When the trolley is unfolded, the rear support assembly 2 needs to rotate. During this process, the rear support assembly 2 pulls the traction member 4 through its own movement, and the traction member 4 then pulls the directional member 3, causing the directional member 3 to separate from the directional hole 111. Based on this, on the one hand, it avoids the need for an additional step of separating the directional member 3 from the directional hole 111 when the trolley is unfolded and in use, thereby improving the user's ease of operation and user experience by reducing the number of operation steps; on the other hand, after the trolley is unfolded, the rear support assembly 2 fixes the directional member 3 through the traction member 4, avoiding the need for the directional member 3 to re-engage with the directional hole 111 during the use of the trolley, thus ensuring the stable use of the trolley.
[0071] When the trolley is folded and stored, the reset component 5 causes the guide component 3 to reposition and insert into the guide hole 111, avoiding the need for an additional step of repositioning the guide component 3 into the guide hole 111. This further improves user convenience and experience by reducing the number of steps involved. See the folded state diagram. Figure 2 .
[0072] The resetting and insertion assembly of the directional component 3 and the directional hole 111 can also be achieved with the help of gravity.
[0073] The shapes of the directional component 3 and the directional hole 111 are not specifically designed; they only need to meet the usage requirements.
[0074] One end of the reset member 5 acts on the directional member 3, and the other end can act on the front wheel structure 11 or other components within the front bracket assembly 1.
[0075] The front support assembly 1 and the rear support assembly 2 are standard structures on the trolley and will not be described in detail here.
[0076] The front wheel structure 11 is also a conventional structure on the trolley. Here is an example to further illustrate: the front wheel structure 11 can be understood as a swivel wheel, which can move in several directions. When it is restricted, it can be understood as only being able to move in a specific direction, such as only being able to move in two directions in a predetermined direction.
[0077] The front wheel structure 11 may include one or two omnidirectional wheel structures, with at least one of the omnidirectional wheel structures having a directional hole 111. The omnidirectional wheel structure is an existing configuration and will not be described in detail here.
[0078] The front wheel structure 11 is only used for differentiation. In practice, the front bracket assembly 1 and the rear bracket assembly 2 can be interchanged. In this case, the front wheel structure 11 is the rear wheel structure.
[0079] See Figure 3 , Figure 7 In this embodiment, the traction member 4 includes:
[0080] The traction part 41 is connected to the directional member 3;
[0081] The sliding part 42 is connected to the traction part 41 and slidably disposed on the front support assembly 1.
[0082] To further explain, taking the sliding part 42 as an example, it is slidably disposed on the front support assembly 1, which can be understood as being slidably connected to the support structure inside the front support assembly 1.
[0083] When the trolley is unfolded, the rear support assembly 2 needs to rotate. During this process, the rear support assembly 2 drives the sliding part 42 through its own movement. The sliding part 42 drives the traction part 41, and finally the traction part 41 pulls the guide member 3, causing the guide member 3 to separate from the guide hole 111. Based on this, on the one hand, it can avoid the need to add an extra step of separating the guide member 3 from the guide hole 111 when the trolley is unfolded and used, thereby improving the user's operational convenience and user experience by reducing the number of operation steps; on the other hand, after the trolley is unfolded, the rear support assembly 2 fixes the guide member 3 through the traction part 41, avoiding the need for the guide member 3 to reset and plug into the guide hole 111 during the use of the trolley, thus ensuring the stable use of the trolley.
[0084] In this embodiment, the traction part 41 is a traction steel wire.
[0085] The traction steel wire ensures the long-term use of the traction unit 41 and guarantees the transmission reliability between the rear support assembly 2 and the directional component 3.
[0086] See Figures 3-4 In this embodiment, the rear support assembly 2 is provided with a groove 21, and part of the sliding part 42 is located in the groove 21;
[0087] In the orientation-disengaged state, the rear support assembly 2 moves, and the sliding part 42 is driven by the groove 21. The sliding part 42 causes the orientation member 3 to separate from the orientation hole 111 through the traction part 41.
[0088] The groove 21 can be understood as a cam groove.
[0089] This embodiment clarifies the method by which the rear support assembly 2 drives the sliding part 42. The method is simple, reduces the risk of failure, and does not require additional structure, thus reducing structural costs.
[0090] See Figure 6 In this embodiment, the directional component 3 is configured as a directional pin.
[0091] This embodiment clarifies the specific structure of the orientation component 3. The structure is simple, avoids increasing structural costs, and reduces the risk of failure.
[0092] The directional pin is slidably mounted on the front wheel structure 11.
[0093] See Figure 6 In this embodiment, the reset element 5 is a compression spring.
[0094] This embodiment clarifies the specific structure of the reset component 5. The structure is simple, which further avoids increasing the structural cost and further reduces the risk of failure.
[0095] In summary, this application has a simple structure, low cost, low risk of failure, and is easy to operate.
[0096] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A folding self-aligning structure for a trolley, characterized in that: The trolley includes a front support assembly (1) and a rear support assembly (2) that are rotatably arranged with each other. The front support assembly (1) includes a front wheel structure (11) with a directional hole (111). The trolley's folding self-aligning directional structure also includes: A directional component (3) is used to be inserted and assembled with the directional hole (111) to restrict the direction of movement of the front wheel structure (11); The traction member (4) acts on the directional member (3) at one end and on the rear support assembly (2) at the other end, serving as a component for causing the directional member (3) to separate from the directional hole (111); The reset member (5) acts at least on the orientation member (3) as a component for causing the orientation member (3) to be re-engaged and connected to the orientation hole (111); The folding self-aligning structure of the trolley has an oriented state and an oriented de-aligning state: In the oriented state, the oriented component (3) is inserted and assembled with the oriented hole (111); In the orientation release state, the rear support assembly (2) causes the orientation member (3) to separate from the orientation hole (111) through its own movement and the traction member (4).
2. The folding self-aligning structure for a trolley according to claim 1, characterized in that: The traction component (4) includes: The traction unit (41) is connected to the directional member (3); The sliding part (42) is connected to the traction part (41) and slidably disposed on the front support assembly (1).
3. The folding self-aligning structure for a trolley according to claim 2, characterized in that: The traction part (41) is a traction steel wire.
4. The folding self-aligning structure for a trolley according to claim 2, characterized in that: The rear support assembly (2) is provided with a groove (21), and part of the sliding part (42) is located in the groove (21); In the orientation release state, the rear support assembly (2) moves, and the sliding part (42) is driven by the groove (21). The sliding part (42) causes the orientation member (3) to separate from the orientation hole (111) through the traction part (41).
5. A folding self-aligning structure for a trolley according to any one of claims 1-4, characterized in that: The directional component (3) is configured as a directional pin.
6. A folding self-aligning structure for a trolley according to any one of claims 1-4, characterized in that: The reset component (5) is configured as a compression spring.