Space-variable pull rod type travel suitcase
By designing an adjustable box height and limit structure in the tie rod tourist box, the problem that existing tie rod tourist boxes are difficult to adjust the capacity according to the size of the item is solved, achieving better three-dimensionality and practicality.
Patent Information
- Application Number
- CN202422169066.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-05
AI Technical Summary
When storing items, existing pull-rod tourist boxes are difficult to adjust the capacity according to the size of the items, resulting in poor three-dimensional sense, easy to stand out, and low practicality.
A spatially variable pull rod type tourist box is designed to enhance the stability between the main box and the adjustment box by adjusting the height of the box and using structures such as limit frames, convex plates, limit plates and bolts.
The height of the box is adjusted according to the size of the stored objects, which improves the stability between the boxes, making the box feel good three-dimensional, not easy to stand out, and has high practicality.
Smart Images

Figure CN222982599U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pull - rod travel cases, and specifically relates to a pull - rod travel case with variable space. Background Technique
[0002] Pull - rod travel cases and suitcases refer to suitcases with pull - rods and wheels. Pull - rod travel cases generally use hard materials and soft materials. Hard materials have a fixed shape and good three - dimensional sense, but their capacity cannot be adjusted as needed. For the soft - material pull - rod travel case, a flexible connecting cloth is arranged between the box body and the box cover, and the hidden space of the pull - rod travel case is opened through a zipper. However, after opening, its shape is not fixed, the three - dimensional sense is poor, and it is easy to protrude after placing items, with low practicality.
[0003] Therefore, the utility model provides a pull - rod travel case with variable space. Content of the Utility Model
[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a pull - rod travel case with variable space to solve the problems raised in the above - mentioned background technique. The utility model adjusts the height of the adjustable box body according to the size of the objects to be stored, and limits the adjustable box body through a limiting mechanism such as a limiting frame, improving the stability between the main box body and the adjustable box body. This pull - rod travel case has a good three - dimensional sense, is not easy to protrude, and has high practicality.
[0005] To achieve the above purpose, the utility model is realized through the following technical solutions: A pull - rod travel case with variable space, including a main box body, an adjustable box body is limitedly arranged at the top of the main box body, limiting mechanisms are arranged at both ends of the main box body, the limiting mechanism includes a limiting frame, the limiting frame is a metal frame, the shape of the limiting frame is "U" - shaped, convex plates are symmetrically arranged on the inner walls at both ends of the limiting frame, a limiting plate is fixedly arranged on one side of the convex plate, limiting grooves are equidistantly arranged at the bottom of the front and rear ends of the adjustable box body, and one end of the limiting plate penetrates through the main box body and is arranged inside the limiting groove.
[0006] Further, sliding grooves are opened inside the inner walls on four sides of the main box body, sliding blocks are fixedly arranged on the four sides at the bottom end of the adjustable box body, and the sliding blocks are limitedly and slidably arranged inside the sliding grooves.
[0007] Further, through holes are opened inside the left and right ends of the main box body and inside the limiting frame, and the limiting frame is snap - fitted and installed on the outer sides of the left and right ends of the main box body.
[0008] Further, grooves are symmetrically opened on both sides of the front and rear ends of the main box body, and the convex plates are inserted and installed inside the grooves.
[0009] Further, screw holes are provided at both sides of the bottom end of the adjustment box body corresponding to the through holes, and bolts are screwed and installed inside the through holes and the screw holes.
[0010] Further, a pull rod installation groove is provided inside the bottom end of the main box body, and a stretchable pull rod is installed inside the pull rod installation groove.
[0011] Further, universal wheels are symmetrically and fixedly installed on the outer walls of the left ends of the main box body and the adjustment box body, and a handle is fixedly installed on the front end face of the main box body.
[0012] Further, a box cover is movably arranged on the top of the adjustment box body through a zipper, and placing bags are arranged on both sides of the top of the box cover.
[0013] Advantages of the present utility model: For the space-variable pull rod type travel suitcase of the present utility model, the height of the adjustment box body is adjusted up and down according to the size of the object to be stored. Push the limit frame in the reverse direction of the main box body, and the limit frame drives the convex plate and the limit plate to slide horizontally. Through the action of the convex plate and the groove, both ends of the main box body can be strengthened. At the same time, the limit plate is inserted into the limit groove to limit the front and rear ends of the adjustment box body. Install the bolts inside the through holes and the screw holes to limit the front and rear ends of the adjustment box body, which is convenient for improving the stability between the main box body and the adjustment box body. This pull rod type travel suitcase has a good three-dimensional sense, is not easy to protrude, and has high practicability. Description of the Drawings
[0014] Figure 1 is a structural diagram of a space-variable pull rod type travel suitcase of the present utility model;
[0015] Figure 2 is a front view sectional view of a space-variable pull rod type travel suitcase of the present utility model;
[0016] Figure 3 is a sectional view of a partial structure of a space-variable pull rod type travel suitcase of the present utility model;
[0017] Figure 4 is a structural diagram of the limit frame of a space-variable pull rod type travel suitcase of the present utility model;
[0018] In the figure: 1, main box body; 2, adjustment box body; 3, box cover; 4, zipper; 5, stretchable pull rod; 6, limit mechanism; 7, universal wheel; 8, chute; 9, slider; 10, screw hole; 11, bolt; 12, limit frame; 13, limit plate; 14, limit groove; 15, groove; 16, convex plate. Detailed Embodiment
[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a space-variable pull-rod type travel suitcase, including a main box body 1, a regulating box body 2 is limitedly arranged at the top of the main box body 1, limiting mechanisms 6 are arranged at both ends of the main box body 1, the limiting mechanism 6 includes a limiting frame 12, the limiting frame 12 is a metal frame, the shape of the limiting frame 12 is "U" type, convex plates 16 are symmetrically arranged on the inner walls at both ends of the limiting frame 12, a limiting plate 13 is fixedly arranged on one side of the convex plate 16, limiting grooves 14 are equidistantly arranged at the bottom of the front and rear ends of the regulating box body 2, one end of the limiting plate 13 penetrates through the main box body 1 and is arranged inside the limiting groove 14. Through the limiting frames 12 on both sides, the front and rear sides of the main box body 1 and the regulating box body 2 can be limited and reinforced at the same time, the stability between the main box body 1 and the regulating box body 2 can be improved, and the regulating box body 2 can be lifted and adjusted conveniently according to the volume of the placed items, with high practicability.
[0021] In this embodiment, sliding grooves 8 are opened inside the inner walls on the four sides of the main box body 1, sliding blocks 9 are fixedly arranged on the four sides at the bottom end of the regulating box body 2, and the sliding blocks 9 are limitedly slidably arranged inside the sliding grooves 8. Through the mutual limitation of the sliding grooves 8 and the sliding blocks 9, the stability during the lifting and sliding process of the regulating box body 2 can be improved.
[0022] In this embodiment, through holes are opened inside the left and right ends of the main box body 1 and inside the limiting frame 12, the limiting frame 12 is clamped and installed on the outer sides of the left and right ends of the main box body 1, grooves 15 are symmetrically opened on both sides of the front and rear ends of the main box body 1, the convex plates 16 are inserted and installed inside the grooves 15, screw holes 10 are opened at the positions corresponding to the through holes on both sides of the bottom end of the regulating box body 2, and bolts 11 are screwed and installed inside the through holes and the screw holes 10. Through the action of the convex plates 16 and the grooves 15, the main box body 1 on both sides of the limiting plate 13 can be limited, which is convenient for reinforcing the two ends of the main box body 1. By installing the bolts 11 inside the screw holes 10 and the through holes, it is convenient to fix the limiting frame 12, and it is convenient to fix the main box body 1 and the regulating box body 2 through the limiting frame 12.
[0023] In this embodiment, a pull rod installation groove is provided inside the bottom end of the main box body 1, and a stretchable pull rod 5 is installed inside the pull rod installation groove. Universal wheels 7 are symmetrically and fixedly installed on the outer walls of the left ends of the main box body 1 and the adjustment box body 2. A handle is fixedly installed on the front end face of the main box body 1. The top of the adjustment box body 2 is movably provided with a box cover 3 through a zipper 4. Placement bags are provided on both sides of the top of the box cover 3. The stretchable pull rod 5 and the universal wheels 7 facilitate the movement of the pull rod type travel suitcase. The box cover 3 can be opened through the zipper 4 to facilitate the taking and placing of items. The provided placement bags can hold small items.
[0024] When using this variable space pull rod type travel suitcase, place the pull rod type travel suitcase flat on the ground, loosen and remove the bolt 11, and move the limit frame 12 away from the main box body 1. The limit frame 12 drives the convex plate 16 to slide inside the groove 15, and at the same time drives the limit plate 13 to move to both sides, moving the limit plate 13 out of the limit groove 14. According to the volume of the items to be stored, pull up the adjustment box body 2 and the box cover 3. The adjustment box body 2 drives the slider 9 to slide and rise inside the chute 8. The adjustment box body 2 also drives the screw hole 10 and the limit groove 14 to rise. After adjusting the adjustment box body 2 to the corresponding height, the other screw holes 10 and limit grooves 14 are respectively opposite to the through holes and the limit plates 13. Push the limit frame 12 in the reverse direction. The limit frame 12 drives the limit plate 13 and inserts it into the corresponding limit groove 14, which facilitates the limitation of the adjustment box body 2 from the front and rear ends. Reinstall the bolt 11 into the through hole and the screw hole 10, which can limit the adjustment box body 2 from the left and right ends, facilitating the improvement of the stability between the main box body 1 and the adjustment box body 2. Through the action of the convex plate 16 and the groove 15, the two ends of the main box body 1 can be strengthened. This pull rod type travel suitcase has a good three-dimensional sense, is not easy to protrude, and has high practicability.
[0025] In addition, it should be understood that although this specification is described according to embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A space-variable pull-rod travel case, comprising a main case body (1), characterized in that: The top of the main box (1) is limitedly provided with an adjusting box (2), and limiting mechanisms (6) are provided at both ends of the main box (1). The limiting mechanisms (6) include a limiting frame (12), and the limiting frame (12) is a metal frame. The limiting frame (12) is in a "U" shape. Convex plates (16) are symmetrically provided on the inner walls of both ends of the limiting frame (12), and a limiting plate (13) is fixedly provided on one side of the convex plate (16). Limiting grooves (14) are equidistantly provided at the bottom of the front and rear ends of the adjusting box (2), and one end of the limiting plate (13) passes through the main box (1) and is provided inside the limiting groove (14).
2. The space-variable pull-rod travel case according to claim 1, characterized in that: Slide grooves (8) are provided inside the inner walls of the four sides of the main box body (1), and sliders (9) are fixedly provided on the four sides of the bottom end of the adjustment box body (2), and the sliders (9) are limitedly slidably provided inside the slide grooves (8).
3. The space-variable pull-rod travel case according to claim 1, characterized in that: Through holes are provided inside the left and right ends of the main box body (1) and inside the limit frame (12), and the limit frame (12) is snap-fitted and installed on the outside of the left and right ends of the main box body (1).
4. The space-variable pull-rod travel case according to claim 3, characterized in that: Grooves (15) are symmetrically provided on both sides of the front and rear ends of the main box body (1), and the convex plate (16) is inserted and installed inside the groove (15).
5. The space-variable pull-rod travel case according to claim 4, characterized in that: Screw holes (10) are provided at positions corresponding to the through holes on both sides of the bottom end of the adjustment box (2), and bolts (11) are threadedly installed inside the through holes and the screw holes (10).
6. The space-variable pull-rod travel case according to claim 1, characterized in that: A pull rod installation groove is provided inside the bottom end of the main box body (1), and a stretchable pull rod (5) is installed inside the pull rod installation groove.
7. The space-variable pull-rod travel case according to claim 1, characterized in that: Universal wheels (7) are symmetrically fixedly mounted on the outer walls of the left ends of the main box body (1) and the adjustment box body (2), and a handle is fixedly mounted on the front end surface of the main box body (1).
8. The space-variable pull-rod travel case according to claim 1, characterized in that: A box cover (3) is movably provided on the top of the adjustment box body (2) via a zipper (4), and placement bags are provided on both sides of the top of the box cover (3).