Draw-bar box with double-layer telescopic enclosure
By designing a double-layer telescopic enclosure in the trolley case and using the combination of zipper and telescopic fabric, the problem of unstable size fixation and expansion of the existing suitcase is solved, and the internal space has been adjusted and expanded for multiple times, improving the stability of use and flexibility.
Patent Information
- Application Number
- CN202421055668.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The existing suitcase product has a fixed size and cannot be adjusted. It is unstable after expansion through a zipper, so it can only be expanded once.
A trolley case with a double-layer telescopic enclosure is designed, by providing a first and second connecting frame between the main box and the sub box, and utilizing a first and second zipper, a first and second telescopic fabric, Achieve multiple expansions and stable use.
It realizes multiple adjustments and expansion of the interior space of the trolley case, improving the stability and flexibility of use.
Smart Images
Figure CN222466252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of trolley cases, and more specifically to a trolley case with a double-layer telescopic enclosure. Background Art
[0002] Currently, the suitcases on the market are basically divided into three sizes: large, medium and small, and the sizes are fixed and cannot be adjusted. Users need to purchase suitcases of different sizes according to their destinations or plans, and when the trip is over, the placement of the fixed-size suitcases becomes a headache.
[0003] At present, some suitcases are provided with zippers on the periphery to form a telescopic enclosure, so that the capacity of the suitcase can be expanded. However, such suitcases are relatively unstable after the zippers are opened, and the capacity can only be expanded once.
[0004] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model aims to provide a trolley case with a double-layer telescopic enclosure.
[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a trolley case with a double-layer telescopic enclosure, comprising a main case body and a sub-case body, a first connecting frame and a second connecting frame are arranged between the main case body and the sub-case body, the first connecting frame and the main case body are provided with a connecting strip and are connected through a first zipper, a first telescopic cloth is arranged between the first connecting frame and the second connecting frame, a second zipper is arranged between the first connecting frame and the second connecting frame and located on the outside of the first telescopic cloth, a second telescopic cloth is arranged between the second connecting frame and the sub-case body, and a third zipper is arranged between the second connecting frame and the sub-case body and located on the outside of the second telescopic cloth.
[0007] By adopting the above technical solution, the second zipper and the second zipper are closed, so that the first retractable cloth and the second retractable cloth are in a contracted state. At this time, the internal space of the trolley case is the smallest. By opening the second zipper, the first retractable cloth can be unfolded, so that the distance between the first connecting frame and the second connecting frame is increased, and the internal space of the trolley case is increased. The third zipper is further opened to unfold the second retractable cloth, so that the distance between the second connecting frame and the sub-box body is increased, so as to further increase the internal space of the trolley case.
[0008] The utility model is further configured as follows: the four corners of the second connection frame are provided with first limiting rods arranged toward the auxiliary box body, and the four corners of the auxiliary box body are provided with first limiting grooves for sliding connection of the first limiting rods.
[0009] The utility model is further configured as follows: a first spring is fixedly connected between the inner wall of the end portion of the first limiting groove and the end portion of the first limiting rod.
[0010] The utility model is further configured as follows: the four corners of the first connection frame are provided with second limiting rods arranged toward the second connection frame, the first limiting rods are provided with second limiting grooves penetrating the surface of the second connection frame, and the second limiting rods are slidably connected in the second limiting grooves.
[0011] The utility model is further configured as follows: a second spring is fixedly connected between the inner wall of the end portion of the second limiting groove and the end portion of the second limiting rod.
[0012] The utility model has the following beneficial effects: when the second zipper and the second zipper are closed, the first retractable cloth and the second retractable cloth are in a contracted state, at which time the internal space of the trolley case is minimized; the second zipper can be opened to unfold the first retractable cloth, thereby increasing the distance between the first connecting frame and the second connecting frame, thereby increasing the internal space of the trolley case; the third zipper can be opened to unfold the second retractable cloth, thereby increasing the distance between the second connecting frame and the auxiliary box body, thereby further increasing the internal space of the trolley case. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the side structure of this embodiment;
[0014] Figure 2 It is a schematic diagram of a partial explosion structure of this embodiment.
[0015] Description of the drawings: 1. Main box body; 2. Sub-box body; 3. First connecting frame; 4. Second connecting frame; 5. First zipper; 6. First telescopic cloth; 7. Second zipper; 8. Second telescopic cloth; 9. Third zipper; 10. First limiting rod; 11. First limiting groove; 12. First spring; 13. Second limiting rod; 14. Second limiting groove; 15. Second spring; 16. Connecting strip. DETAILED DESCRIPTION
[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0017] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0018] As shown in the figure, a trolley case with a double-layer telescopic enclosure includes a main box body 1 and a sub-box body 2, a first connecting frame 3 and a second connecting frame 4 are arranged between the main box body 1 and the sub-box body 2, the first connecting frame 3 and the main box body 1 are provided with a connecting strip 16 and are connected through a first zipper 5, a first telescopic cloth 6 is arranged between the first connecting frame 3 and the second connecting frame 4, a second zipper 7 is arranged between the first connecting frame 3 and the second connecting frame 4 and located on the outside of the first telescopic cloth 6, a second telescopic cloth 8 is arranged between the second connecting frame 4 and the sub-box body 2, and a third zipper 9 is arranged between the second connecting frame 4 and the sub-box body 2 and located on the outside of the second telescopic cloth.
[0019] By closing the second zipper 7 and the third zipper 9, the first telescopic cloth 6 and the second telescopic cloth 8 are in a contracted state. At this time, the internal space of the trolley case is minimized. The second zipper 7 can be opened to expand the first telescopic cloth 6, thereby increasing the distance between the first connecting frame 3 and the second connecting frame 4, thereby increasing the internal space of the trolley case. The third zipper 9 can be opened to expand the second telescopic cloth 8, thereby increasing the distance between the second connecting frame 4 and the sub-box body 2, thereby further increasing the internal space of the trolley case.
[0020] The four corners of the second connection frame 4 are provided with first limiting rods 10 disposed toward the auxiliary box body 2, and the four corners of the auxiliary box body 2 are provided with first limiting grooves 11 for sliding connection of the first limiting rods 10, so as to ensure the stability of the connection between the second connection frame 4 and the auxiliary box body 2. A first spring 12 is fixedly connected between the inner wall of the end of the first limiting groove 11 and the end of the first limiting rod 10. When the third zipper 9 is in the closed state, the first spring 12 is in a compressed state. After the third zipper 9 is opened, under the elastic force of the first spring 12, the distance between the second connection frame 4 and the auxiliary box body 2 is increased, and the second telescopic cloth 8 is unfolded.
[0021] The four corners of the first connection frame 3 are provided with second limiting rods 13 arranged toward the second connection frame 4. The first limiting rod 10 is provided with a second limiting groove 14 penetrating the surface of the second connection frame 4. The second limiting rod 13 is slidably connected in the second limiting groove 14 to ensure the stability between the first connection frame 3 and the second connection frame 4. A second spring 15 is fixedly connected between the inner wall of the end of the second limiting groove 14 and the end of the second limiting rod 13. When the second zipper 7 is in the closed state, the second spring 15 is in a compressed state. After the second zipper 7 is opened, under the elastic force of the second spring 15, the distance between the first connection frame 3 and the second connection frame 4 is increased, and the first telescopic cloth 6 is unfolded to improve the stability of the trolley case when in use.
[0022] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A trolley case with double-layer telescopic enclosure, characterized in that: The invention comprises a main box (1) and a sub-box (2), wherein a first connecting frame (3) and a second connecting frame (4) are arranged between the main box (1) and the sub-box (2), the first connecting frame (3) and the main box (1) are provided with a connecting strip (16) and are connected via a first zipper (5), a first telescopic cloth (6) is arranged between the first connecting frame (3) and the second connecting frame (4), a second zipper (7) is arranged between the first connecting frame (3) and the second connecting frame (4) and located outside the first telescopic cloth (6), a second telescopic cloth (8) is arranged between the second connecting frame (4) and the sub-box (2), and a third zipper (9) is arranged between the second connecting frame (4) and the sub-box (2) and located outside the second telescopic cloth; The four corners of the second connection frame (4) are provided with first limiting rods (10) arranged toward the auxiliary box body (2), and the four corners of the auxiliary box body (2) are provided with first limiting grooves (11) for sliding connection of the first limiting rods (10); A first spring (12) is fixedly connected between the inner wall of the end of the first limiting groove (11) and the end of the first limiting rod (10); The four corners of the first connection frame (3) are provided with second limiting rods (13) arranged toward the second connection frame (4); the first limiting rods are provided with second limiting grooves (14) penetrating the surface of the second connection frame (4); the second limiting rods (13) are slidably connected in the second limiting grooves (14); A second spring (15) is fixedly connected between the inner wall of the end of the second limiting groove (14) and the end of the second limiting rod (13).