Luggage case pull rope fixing structure and doll-sliding luggage case
By using a pull rope assembly in the stroller suitcase to restrict the unfolding of the support frame, the problems of complex structure and high cost of existing stroller suitcases are solved. This achieves reliable unfolding and folding of the support frame, reduces production costs, and improves ease of use and load-bearing capacity.
Patent Information
- Application Number
- CN202520543564.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing child-friendly suitcases have complex support frame structures, high production costs, and are inconvenient to use.
The maximum angle of the support frame's unfolding is limited by a pull rope assembly. The support frame and the housing are connected by rotation. The pull rope assembly includes a pull rope, a hook, and a winding mechanism. The support frame can be reliably unfolded, has a strong load-bearing capacity, a simple structure, and low cost.
The support frame can be reliably deployed and retracted, reducing production costs, improving ease of use and load-bearing capacity, making it suitable for children to ride on and preventing them from falling.
Smart Images

Figure CN223860334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage technology, and in particular to a luggage drawstring fixing structure and a baby stroller luggage. Background Technology
[0002] In today's fast-paced life, parents face increasingly heavy childcare tasks. As children grow older, outdoor activities become an indispensable part of their development. However, when taking children out, parents often need to carry many items, such as children's toys, snacks, clothes, and parents' personal belongings. Traditional backpacks or handbags often cannot meet these needs, while special strollers or trolleys can carry more items but are not convenient to use. Therefore, a baby stroller suitcase has emerged on the market that can carry enough items and is easy to carry and use.
[0003] In the prior art, for example, Chinese Utility Model Patent Publication No. CN 218164465 U discloses a multifunctional suitcase, including a first suitcase body and a second suitcase body, and a connecting mechanism connected between the first suitcase body and the second suitcase body, which can be unfolded and folded in the front-back direction. The suitcase body has a seating area for sitting. When the connecting mechanism is unfolded in the front-back direction, the seating area can be unfolded between the first suitcase body and the second suitcase body. When the connecting mechanism is folded in the front-back direction, the seating area can be stored in the suitcase body. However, the suitcase body and the front support are limited by a support rod. In addition to rotational connection, the support rod also needs to slide, resulting in a complex structure and high production cost. Utility Model Content
[0004] One objective of this application is to provide a luggage drawstring fixing structure and a baby stroller luggage, which has a simple structure and low production cost.
[0005] The technical solution adopted in this application is: a luggage pull rope fixing structure, including a suitcase body and a support frame, the support frame is rotatably connected to the suitcase body, and a pull rope assembly is provided between the suitcase body and the support frame. The pull rope assembly includes a pull rope. When the support frame is unfolded into place, one end of the pull rope is connected to the support frame, and the other end of the pull rope is connected to the suitcase body. The pull rope is in a straight line.
[0006] Compared with existing technologies, the advantages of this application are that, instead of using a rotating structure or strut structure of the support frame for rotation limitation, a pull rope can limit the maximum angle of the support frame's unfolding, thus playing a limiting role. Moreover, the pull rope is not rigid and does not affect the rotation of the support frame during unfolding, ensuring the reliability of the support frame's unfolding. Tightening the pull rope can also improve the load-bearing capacity of the support frame when it is unfolded. The structure is simple, and the rotating structure of the support frame can use ordinary plastic parts, resulting in low production costs. When the support frame is rotated and unfolded, it can form a child-walking mode, in which case the box is tilted, making it convenient for children to sit on and preventing them from falling off to one side. The support frame can also improve its load-bearing capacity.
[0007] In some embodiments of this application, the pull rope assembly further includes a first hook and a second hook that cooperate with each other. One of the housing or support frame is connected to the first hook, and the other is connected to one end of the pull rope. The other end of the pull rope is connected to the second hook. When the support frame is in the extended position, the first hook and the second hook are engaged with each other, and the pull rope is in a straight line.
[0008] In some embodiments of this application, the pull rope assembly further includes a housing for storing the pull rope and a winding mechanism for retracting the pull rope. The winding mechanism is located inside the housing, and the housing is connected to the box. When the support frame is extended, one end of the pull rope is connected to the winding mechanism, and the other end of the pull rope is connected to the support frame. When the support frame is retracted, the pull rope is located inside the housing.
[0009] Furthermore, the winding mechanism is a spring, with one end of the spring fixedly connected to the housing and the other end connected to the pull rope.
[0010] In some embodiments of this application, the box is provided with a bracket, the bracket is connected to the box, and the support frame is rotatably connected to the bracket.
[0011] Furthermore, the support frame is provided with a buckle groove, and the bracket is provided with a locking member. The locking member has a tendency to move toward the buckle groove. When the support frame is retracted, part of the locking member is located in the buckle groove.
[0012] Furthermore, the bracket is provided with an unlocking component, which is slidably connected to the housing. The locking component is provided with an obliquely arranged waist hole, and the unlocking component is provided with a moving post, which passes through the waist hole. When the unlocking component is pressed down, the locking component separates from the buckle groove.
[0013] In some embodiments of this application, the bottom of the support frame is provided with a front wheel assembly, and the housing is provided with a roller assembly. When the support frame is unfolded, both the front wheel assembly and the roller assembly are in contact with the ground; when the support frame is retracted, the roller assembly is in contact with the ground, and the front wheel assembly is detached from the ground.
[0014] In some embodiments of this application, the housing is provided with a storage slot for accommodating a support frame.
[0015] A child-friendly suitcase includes the aforementioned suitcase drawstring fixing structure. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;
[0017] Figure 2 This is a schematic diagram of the support frame in its unfolded state according to Embodiment 1 of this utility model. Figure 1 ;
[0018] Figure 3 This is a schematic diagram of the support frame in its unfolded state according to Embodiment 1 of this utility model. Figure 2 ;
[0019] Figure 4 This is a cross-sectional view of Embodiment 1 of this utility model;
[0020] Figure 5 yes Figure 4 Enlarged view of part A in the image;
[0021] Figure 6 This is a schematic diagram of the structure of Embodiment 1 of this utility model without the support bracket;
[0022] Figure 7 yes Figure 6 Enlarged view of part B in the image;
[0023] Figure 8 This is a schematic diagram of the unlocking component of Embodiment 1 of this utility model;
[0024] Figure 9 This is a structural schematic diagram of Embodiment 2 of the present invention;
[0025] Figure 10 This is a structural schematic diagram of Embodiment 3 of this utility model.
[0026] In the diagram: 1. Box body; 2. Support frame; 4. Pull rope; 5. First hook; 6. Second hook; 7. Shell; 8. Bracket; 9. Buckle groove; 10. Locking element; 11. Unlocking element; 12. Waist hole; 13. Moving column; 14. Front wheel assembly; 15. Roller assembly; 16. Storage slot; 17. Groove; 18. First elastic element; 19. Guide hole. Detailed Implementation
[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0028] Example 1:
[0029] This embodiment provides a luggage drawstring fixing structure, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a box body 1 and a support frame 2. The support frame 2 is rotatably connected to the box body 1. A pull rope assembly is provided between the box body 1 and the support frame 2. The pull rope assembly includes a pull rope 4. When the support frame 2 is in the extended position, one end of the pull rope 4 is connected to the support frame 2, and the other end of the pull rope 4 is connected to the box body 1. The pull rope 4 is in a straight line.
[0030] Compared to using the rotating structure of the support frame 2 for rotation limitation, the pull rope 4 can limit the maximum angle of the support frame 2 when it is unfolded, thus playing a limiting role, ensuring the reliability of the unfolding of the support frame 2, and also improving the load-bearing capacity of the support frame 2 when it is unfolded. The structure is simple, and the rotating structure of the support frame 2 can be made of ordinary plastic parts, resulting in low production costs. When the support frame 2 is rotated and unfolded, it can form a child-walking mode. At this time, the box body 1 is tilted, making it convenient for children to sit on and preventing them from falling off to one side. The support frame 2 can improve the load-bearing capacity.
[0031] In this embodiment, the support frame 2 is generally shaped like a ladder. The top of the support frame 2 is rotatably connected to the box body 1. The support frame 2 has high structural strength, and the crossbar of the ladder can be used for children to place their feet. The support frame 2 is made of plastic. The side of the support frame 2 facing the box body 1 has a groove 17. When the support frame 2 is folded up, the pull rope 4 can be stored in the groove 17 without affecting the fit between the support frame 2 and the box body 1. Two pull ropes 4 can be provided, one on each of the two vertical bars of the ladder, or only one can be provided, located in the middle of the crossbar of the ladder.
[0032] To improve strength, the housing 1 is equipped with a bracket 8, which is connected to the housing 1. The support frame 2 is rotatably connected to the bracket 8. The design of the bracket 8 can not only strengthen the structural strength of the housing 1, but also strengthen the connection strength with the support frame 2, while reducing the processing difficulty of the housing 1. The support frame 2 is rotatably connected to the bracket 8, and its rotating part is prone to damage. If it is damaged, only the support frame 2 or the bracket 8 needs to be repaired and replaced, without replacing the housing 1, thus reducing maintenance costs.
[0033] To ensure the support frame 2 can be reliably retracted, such as Figure 4 , Figure 5 As shown, the support frame 2 is provided with a latching groove 9, and the bracket 8 is provided with a locking member 10. The locking member 10 has a tendency to move towards the latching groove 9. When the support frame 2 is retracted, part of the locking member 10 is located within the latching groove 9. In this embodiment, the opening direction of the latching groove 9 is perpendicular to the rotation direction of the support frame 2. The locking member 10 is used to lock the support frame 2 relative to the bracket 8 after it is retracted. When the support frame 2 is retracted, the locking member 10 cooperates with the latching groove 9. The locking member 10 is inserted into the latching groove 9, so that the outward flipping of the support frame 2 is blocked by the locking member 10, ensuring that the retraction of the support frame 2 is reliable.
[0034] The movement of the locking member 10 is achieved by the first elastic member 18, which is a spring. One end of the first elastic member 18 is connected to the locking member 10, and the other end of the first elastic member 18 is connected to the bracket 8.
[0035] For easier unlocking, such as Figure 6 , Figure 7 , Figure 8As shown, the bracket 8 is equipped with an unlocking component 11, which is slidably connected to the housing 1. The locking component 10 has an obliquely arranged waist hole 12. The unlocking component 11 has a moving post 13, which passes through the waist hole 12. When the unlocking component 11 is pressed, the locking component 10 is separated from the buckle groove 9. The bracket 8 is equipped with a guide hole 19, through which part of the unlocking component 11 passes. This ensures that part of the unlocking component 11 is exposed for easy unlocking by the user, while also ensuring that the moving direction of the unlocking component 11 is fixed and reliable. The unlocking component 11 is used to release the lock between the support frame 2 and the bracket 8. The moving post 13 cooperates with the waist hole 12 so that when the user presses the unlocking component 11, the moving post 13 moves synchronously, thereby pushing the waist hole 12 and causing the locking component 10 to move away from the buckle groove 9, thus unlocking.
[0036] For easy movement while strolling with a child, the support frame 2 has a front wheel assembly 14 at its bottom, and the housing 1 has a roller assembly 15. When the support frame 2 is extended, both the front wheel assembly 14 and the roller assembly 15 are in contact with the ground. When the support frame 2 is retracted, the roller assembly 15 is in contact with the ground, and the front wheel assembly 14 is off the ground. In other words, the distance from the rotation point of the support frame 2 to the roller assembly 15 is greater than the distance from the rotation point of the support frame 2 to the front wheel assembly 14. The design of the front wheel assembly 14 facilitates movement while strolling with a child; when the support frame 2 is retracted, the front wheel assembly 14 is off the ground and does not affect the normal movement of the housing 1.
[0037] To ensure overall dimensions, the case 1 is provided with a storage slot 16 for accommodating the support frame 2. When the support frame 2 is folded up, it can be accommodated in the storage slot 16, ensuring that the support frame 2 does not extend beyond the outer surface of the case 1. This maintains the dimensions of the case 1, facilitates its placement in the luggage storage area, reduces the risk of collision between the support frame 2 and the outside environment, and extends the service life of the support frame 2.
[0038] Example 2:
[0039] This embodiment provides a luggage drawstring fixing structure. For easy connection of the drawstring 4, such as... Figure 9 As shown, in addition to the features described in Embodiment 1, the pull rope assembly also includes a first hook 5 and a second hook 6 that cooperate with each other. One of the housing 1 or the support frame 2 is connected to the first hook 5, and the other is connected to one end of the pull rope 4. The other end of the pull rope 4 is connected to the second hook 6. When the support frame 2 is in the extended position, the first hook 5 and the second hook 6 are interlocked, and the pull rope 4 is in a straight line. In this embodiment, the housing 1 is connected to the first hook 5. When the support frame 2 is in the retracted state, both the first hook 5 and the second hook 6 can be stored in the groove 17 without affecting the fit between the support frame 2 and the housing 1.
[0040] The first hook 5 and the second hook 6 work together to make it easy to connect the pull rope 4. After the support frame 2 is unfolded, you only need to fasten the first hook 5 and the second hook 6 to complete the connection between the pull rope 4 and the box 1 and the support frame 2. The connection is simple and convenient.
[0041] Example 3:
[0042] This embodiment provides a luggage drawstring fixing structure for easy storage of the drawstring 4, such as... Figure 10 As shown, in addition to the features described in Embodiment 1, the pull rope assembly also includes a housing 7 for storing the pull rope 4 and a winding mechanism for retracting the pull rope 4. The winding mechanism is located inside the housing 7, which is connected to the box 1. When the support frame 2 is extended, one end of the pull rope 4 is connected to the winding mechanism, and the other end is connected to the support frame 2. When the support frame 2 is retracted, the pull rope 4 is located inside the housing 7. The design of the winding mechanism allows the pull rope 4 to be stored in the housing 7 when the support frame 2 is retracted, preventing the pull rope 4 from rubbing or tangling on the outside, providing good protection for the pull rope 4 and extending its service life.
[0043] To ensure reliable winding, the winding mechanism is a spring-loaded mechanism. One end of the spring-loaded mechanism is fixedly connected to the housing 7, and the other end is connected to the pull rope 4.
[0044] Example 4:
[0045] This embodiment provides a baby stroller suitcase, including a suitcase pull rope fixing structure as described in Embodiment 1, Embodiment 2, or Embodiment 3.
[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A luggage drawstring fixing structure, characterized in that, The device includes a housing (1) and a support frame (2). The support frame (2) is rotatably connected to the housing (1). A pull rope assembly is provided between the housing (1) and the support frame (2). The pull rope assembly includes a pull rope (4). When the support frame (2) is in the extended position, one end of the pull rope (4) is connected to the support frame (2), and the other end of the pull rope (4) is connected to the housing (1). The pull rope (4) is in a straight line. The housing (1) is provided with a bracket (8). The bracket (8) is connected to the housing (1), and the support frame (2) is rotatably connected to the bracket (8). The support frame (2) is provided with a buckle groove (9), and the bracket (8) is provided with a locking element (10). The locking element (10) has a tendency to move toward the buckle groove (9). When the support frame (2) is retracted, part of the locking element (10) is located in the buckle groove (9).
2. The luggage drawstring fixing structure according to claim 1, characterized in that: The pull rope assembly also includes a first hook (5) and a second hook (6) that cooperate with each other. One of the housing (1) or the support frame (2) is connected to the first hook (5), and the other is connected to one end of the pull rope (4). The other end of the pull rope (4) is connected to the second hook (6). When the support frame (2) is in the extended position, the first hook (5) and the second hook (6) are engaged with each other.
3. The luggage drawstring fixing structure according to claim 1, characterized in that: The pull rope assembly also includes a housing (7) for storing the pull rope (4) and a winding mechanism for retracting the pull rope (4). The winding mechanism is located inside the housing (7). The housing (7) is connected to the box (1). When the support frame (2) is unfolded, one end of the pull rope (4) is connected to the winding mechanism, and the other end of the pull rope (4) is connected to the support frame (2). When the support frame (2) is folded up, the pull rope (4) is located inside the housing (7).
4. The luggage drawstring fixing structure according to claim 3, characterized in that: The winding mechanism is a spring, one end of which is fixedly connected to the housing (7), and the other end of which is connected to the pull rope (4).
5. The luggage drawstring fixing structure according to claim 1, characterized in that: The bracket (8) is provided with an unlocking component (11), which is slidably connected to the box (1). The locking component (10) is provided with a waist hole (12) arranged obliquely. The unlocking component (11) is provided with a moving column (13), which passes through the waist hole (12). When the unlocking component (11) is pressed down, the locking component (10) is separated from the buckle groove (9).
6. The luggage drawstring fixing structure according to claim 1, characterized in that: The support frame (2) has a front wheel assembly (14) at its bottom and a roller assembly (15) on its box (1). When the support frame (2) is unfolded, both the front wheel assembly (14) and the roller assembly (15) are in contact with the ground. When the support frame (2) is folded up, the roller assembly (15) is in contact with the ground and the front wheel assembly (14) is detached from the ground.
7. The luggage drawstring fixing structure according to claim 1, characterized in that: The box (1) is provided with a storage slot (16) for accommodating the support frame (2).
8. A child-friendly suitcase, characterized in that, Includes a luggage drawstring fixing structure as described in any one of claims 1-7.
Citation Information
Patent Citations
Multifunctional luggage case
CN218164465U