Graded capacity expansion type luggage
By designing a hierarchical expansion bag and using the combination of multiple box expansion zippers, the problem that existing bags cannot achieve multi-level expansion is solved, and the user's flexibly selects the capacity expansion function is realized, improving the flexibility and convenience of the bag.
Patent Information
- Application Number
- CN202421585503.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-05
AI Technical Summary
Existing luggage cannot achieve multi-level expansion, and the capacity expansion is fixed, which cannot meet the user's needs for flexible selection.
A hierarchical expansion bag is designed, and multi-stage expansion is achieved through the combination of the first box, the second box, the side wall folding cloth and a plurality of box expansion zippers. The opening and closing of each box expansion zipper can be independently controlled, and users can open the zipper step by step as needed to achieve multi-level expansion.
Multi-level expansion of luggage and bags is achieved, and the expansion capacity is freely chosen by users, which greatly improves flexibility and convenience of use.
Smart Images
Figure CN222675627U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bags, and more specifically to a graded expandable bag. Background Art
[0002] As people travel more and more frequently, luggage is becoming more and more popular as a kind of box for carrying personal belongings when people travel. At present, most of the luggage on the market are equipped with a first box body, a second box body, a pull rod, a moving wheel and other components, but the volume of traditional luggage is generally fixed and does not have the function of expansion.
[0003] In order to solve the above problems, some expandable bags made of folding cloth have begun to appear on the market. A folding cloth is provided between the first box body and the second box body, and openable and closable zippers are provided on the edges of the first box body and the edges of the second box body. When the zipper is opened, the folding cloth can be unfolded to increase the volume between the first box body and the second box body. However, this type of bag has only one-level expansion function and can only be expanded once. The expansion capacity is fixed and multi-level expansion cannot be achieved. Utility Model Content
[0004] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and to provide a graded expandable luggage with a capacity that can be freely selected by users, good flexibility and convenient use.
[0005] The foldable bag has two sides, one side, and the other side, and a zipper, wherein the zipper is connected to the first box body and the second box body, and the zipper is connected to the second box body. After circling one circle, the two second chain tooth belts of the second box expansion zipper exceed the end fixed position of the head end of the two first chain tooth belts of the first box expansion zipper and / or the end fixed position of the head end of the two second chain tooth belts of the second box expansion zipper, and the two second chain tooth belts of the second box expansion zipper are respectively arranged on the outer surface of the side wall folding cloth, and the tail ends of the two second chain tooth belts of the second box expansion zipper exceed the end fixed position of the head end of the two first chain tooth belts of the first box expansion zipper and / or the end fixed position of the head end of the two second chain tooth belts of the second box expansion zipper after circling one circle, and are located above the inner side edges of the tail ends of the two first chain tooth belts of the first box expansion zipper, and the tail ends of the two first chain tooth belts of the first box expansion zipper and the tail ends of the two second chain tooth belts of the second box expansion zipper are both located at the head ends of the two first chain tooth belts of the first box expansion zipper and the outer sides of the head ends of the two second chain tooth belts of the second box expansion zipper.
[0006] Preferably, the bag further comprises a third case expansion zipper, the head ends of the two third chain tooth belts of the third case expansion zipper are installed at the middle position of one side of the side wall folded cloth and are located below the head ends of the two second chain tooth belts of the second case expansion zipper, the two third chain tooth belts of the third case expansion zipper are respectively arranged around the outer surface of the side wall folded cloth, and the tail ends of the two third chain tooth belts of the third case expansion zipper exceed the end fixed position of the head ends of the two first chain tooth belts of the first case expansion zipper after being wrapped around once. , the end fixed position of the head end of the two second chain tooth tapes of the second box expansion zipper and / or the end fixed position of the head end of the two third chain tooth tapes of the third box expansion zipper, and are located above the inner side edges of the tail ends of the two second chain tooth tapes of the second box expansion zipper, and the tail ends of the two third chain tooth tapes of the third box expansion zipper are both located at the head ends of the two first chain tooth tapes of the first box expansion zipper, the head ends of the two second chain tooth tapes of the second box expansion zipper and the outer sides of the head ends of the two third chain tooth tapes of the third box expansion zipper.
[0007] Preferably, the inner wall of the inner cavity of the bag formed by the first box body, the side wall folded cloth and the second box body is covered with lining, and the inner side surface of the lining is connected to a surrounding lining expansion zipper, and the head ends of the two fourth chain tooth tapes of the lining expansion zipper are both located between the tail ends of the two fourth chain tooth tapes of the lining expansion zipper, and the tail ends of the two fourth chain tooth tapes of the lining expansion zipper are fixed at the end positions exceeding the head ends of the two fourth chain tooth tapes of the lining expansion zipper after being circled once.
[0008] Preferably, a front opening communicating with the interior of the second box body is provided on the front side of the second box body, a front cover is provided at the front opening of the second box body, and the second box body and the front cover are connected via a front cover opening and closing connector.
[0009] Preferably, the front cover opening and closing connection piece is configured as a front cover opening and closing zipper.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. The utility model has a reasonable structural design, and is provided with a first box body, a second box body, a side wall folding cloth and at least two box body expansion zippers. When the luggage needs to be expanded, different box body expansion zippers can be opened one by one from the outside to the inside, so that the luggage can achieve multi-level expansion. The expansion capacity of the luggage can be freely selected by the user, which is flexible and easy to use.
[0012] 2. The inner wall of the inner cavity of the bag of the utility model is covered with lining, and the inner side of the lining is provided with a lining expansion zipper. Opening the lining expansion zipper can make the lining also have the expansion function, so that it can better cooperate with the box body for expansion. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a schematic diagram of the structure of the graded expandable luggage provided by the embodiment of the utility model when both of the case expansion zippers are opened;
[0015] Figure 2 yes Figure 1 A magnified view of the local structure of the box expansion zipper;
[0016] Figure 3 It is a structural schematic diagram of a graded expandable luggage provided by an embodiment of the utility model when the first box expansion zipper is opened and the second box expansion zipper is closed;
[0017] Figure 4 yes Figure 3 A magnified view of the local structure of the box expansion zipper;
[0018] Figure 5 It is a schematic diagram of the structure of the graded expansion type luggage provided by the embodiment of the utility model when the two expansion zippers of the luggage body are closed;
[0019] Figure 6 yes Figure 5 A magnified view of the local structure of the box expansion zipper;
[0020] Figure 7 It is a partial structural schematic diagram of another type of graded expandable luggage provided by an embodiment of the utility model when three case expansion zippers are all opened;
[0021] Figure 8 It is a schematic diagram of the structure of the graded expansion type luggage provided by the embodiment of the utility model when the lining expansion zipper is closed;
[0022] Fig. 9 It is a schematic structural diagram of a graded expansion type luggage provided by an embodiment of the utility model when the lining expansion zipper is opened. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Embodiment 1
[0025] Please refer to Figure 1 Embodiment 1 of the present invention provides a graded expandable luggage, including a first box body 1, a second box body 2, a side wall folding cloth 3, a first box body expansion zipper 4 and a second box body expansion zipper 5. The components of this embodiment are described in detail below with reference to the accompanying drawings.
[0026] like Figure 1 As shown, the side wall folding cloth 3 can be arranged in a square shape, one edge of the side wall folding cloth 3 is connected to the edge of the first box body 1, and the other edge of the side wall folding cloth 3 is connected to the edge of the second box body 2. The side wall folding cloth 3 can be made of various flexible cloths or leathers.
[0027] like Figure 1 and Figure 2 As shown, the first box expansion zipper 4 and the second box expansion zipper 5 are both located between the first box 1 and the second box 2. The first box expansion zipper 4 may include two first chain tooth tapes 41 and a first zipper head 42, and the second box expansion zipper 5 may include two second chain tooth tapes 51 and a second zipper head 52.
[0028] During specific installation, the head ends of the two first chain tooth belts 41 of the first box expansion zipper 4 and the head ends of the two second chain tooth belts 51 of the second box expansion zipper 5 are both installed at the middle position of one side of the side wall folding cloth 3 and are arranged in sequence from top to bottom. The two first chain tooth belts 41 of the first box expansion zipper 4 are respectively arranged outward along the edges of the first box 1 and the second box 2 corresponding to each other on the outer surface of the side wall folding cloth 3. The tail ends of the two first chain tooth belts 41 of the first box expansion zipper 4 exceed the end fixed positions of the head ends of the two first chain tooth belts 41 of the first box expansion zipper 4 and the end fixed positions of the head ends of the two second chain tooth belts 51 of the second box expansion zipper 5 after being wrapped around once.
[0029] The two second chain tooth belts 51 of the second box expansion zipper 5 are respectively arranged on the outer surface of the side wall folding cloth 3, and the tail ends of the two second chain tooth belts 51 of the second box expansion zipper 5 exceed the end fixed position of the head end of the two first chain tooth belts 41 of the first box expansion zipper 4 and the end fixed position of the head end of the two second chain tooth belts 51 of the second box expansion zipper 5 after circling once, and are located above the inner side edge of the tail end of the two first chain tooth belts 41 of the first box expansion zipper 4, and the tail ends of the two first chain tooth belts 41 of the first box expansion zipper 4 and the tail ends of the two second chain tooth belts 51 of the second box expansion zipper 5 are both located at the head end of the two first chain tooth belts 41 of the first box expansion zipper 4 and the outer side edge of the head end of the two second chain tooth belts 51 of the second box expansion zipper 5.
[0030] like Figure 1 and Figure 2 As shown, when the first box expansion zipper 4 and the second box expansion zipper 5 are fully opened, the first box 1 and the second box 2 move away from each other, and the side wall folding cloth 3 can be fully unfolded. At this time, the luggage is in the maximum expansion state (secondary expansion).
[0031] like Figure 3 and Figure 4 As shown, when the first box expansion zipper 4 is opened and the second box expansion zipper 5 is closed, the bag is in a first-level expansion state, and the expansion capacity is reduced. At this time, the second box expansion zipper 5 can block the outside of the first zipper head 42 of the first box expansion zipper 4.
[0032] like Figure 5 and Figure 6 As shown, after the second box expansion zipper 5 is closed, the first box expansion zipper 4 can be closed. At this time, the first box 1 and the second box 2 are close to each other, and the luggage is in a non-expanded state. At this time, the first box expansion zipper 4 can cover the outside of the second box expansion zipper 5, so that only the first box expansion zipper 4 is exposed between the first box and the second box.
[0033] like Figure 1 As shown, the front of the second box body 2 is provided with a front opening communicating with the interior thereof, a front cover 9 is provided at the front opening of the second box body 2, and the second box body 2 and the front cover 9 are connected via a front cover opening and closing connector. In this embodiment, the front cover opening and closing connector can preferably be a front cover opening and closing zipper 10, and of course, in other embodiments, it can also be provided as an opening and closing connector such as a lock, a buckle, a password lock, etc., which is not limited to this embodiment.
[0034] Embodiment 2
[0035] Embodiment 2 of the present invention provides a graded expandable luggage, which also includes a first box body 1, a second box body 2, a side wall folding cloth 3, a first box body expansion zipper 4 and a second box body expansion zipper 5 and other components. On the basis of the above embodiment 1, the luggage may also include a third box body expansion zipper 6.
[0036] like Figure 7 As shown, the third box expansion zipper 6 may include two third chain tooth belts 61 and a third zipper head 62. The head ends of the two third chain tooth belts 61 of the third box expansion zipper 6 are installed at the middle position of one side of the side wall folding cloth 3 and are located below the head ends of the two second chain tooth belts 51 of the second box expansion zipper 5. The two third chain tooth belts 61 of the third box expansion zipper 6 are respectively arranged around the outer surface of the side wall folding cloth 3. The tail ends of the two third chain tooth belts 61 of the third box expansion zipper 6 exceed the end ends of the head ends of the two first chain tooth belts 41 of the first box expansion zipper 4 after being wrapped around once. The first box expansion zipper 4 and the second box expansion zipper 5 are fixed at the end fixed position of the head ends of the two second chain tooth tapes 51 of the second box expansion zipper 5 and the end fixed position of the head ends of the two third chain tooth tapes 61 of the third box expansion zipper 6, and are located above the inner side edges of the tail ends of the two second chain tooth tapes 51 of the second box expansion zipper 5, and the tail ends of the two third chain tooth tapes 61 of the third box expansion zipper 6 are both located at the outer sides of the head ends of the two first chain tooth tapes 41 of the first box expansion zipper 4, the head ends of the two second chain tooth tapes 51 of the second box expansion zipper 5 and the head ends of the two third chain tooth tapes 61 of the third box expansion zipper 6.
[0037] In the second embodiment, three box expansion zippers are provided, so that the luggage can achieve three-level expansion. It should be noted that more box expansion zippers can be provided according to actual needs.
[0038] Embodiment 3
[0039] Embodiment 3 of the present invention provides a graded expandable luggage, which makes the following improvements on the basis of the above embodiment 1 or embodiment 2:
[0040] like Figure 8 and Fig. 9 As shown, the inner wall of the inner cavity of the bag formed by the first box body 1, the side wall folding cloth 3 and the second box body 2 can be covered with a lining 7, and the inner side of the lining 7 is connected to a surrounding lining expansion zipper 8, and the lining expansion zipper 8 can include two fourth chain tooth tapes 81 and a fourth zipper head 82, and the head ends of the two fourth chain tooth tapes 81 of the lining expansion zipper 8 are both located between the tail ends of the two fourth chain tooth tapes 81 of the lining expansion zipper 8, and the tail ends of the two fourth chain tooth tapes 81 of the lining expansion zipper 8 are fixed at the end position after being circled and exceeding the head ends of the two fourth chain tooth tapes 81 of the lining expansion zipper 8.
[0041] When the two fourth chain tooth tapes 81 of the lining expansion zipper 8 are closed, the lining portion between the two fourth chain tooth tapes 81 can be folded and stored, and the head ends of the two fourth chain tooth tapes 81 of the lining expansion zipper 8 can be buried in the tail ends of the two fourth chain tooth tapes 81 of the lining expansion zipper 8.
[0042] When the two fourth chain tooth tapes 81 of the lining expansion zipper 8 are opened, the lining 7 can be expanded and unfolded in the thickness direction of the bag, so that it can better cooperate with the box body for expansion.
[0043] To sum up, the structural design of the utility model is reasonable. When the luggage needs to be expanded, different box expansion zippers can be opened one by one from the outside to the inside, so that the luggage can achieve multi-level expansion. The expansion capacity of the luggage can be freely selected by the user, which is flexible and easy to use.
[0044] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.
Claims
1. A graded expandable luggage, comprising a first box body, a second box body, and a side wall folding cloth, wherein the side wall folding cloth is arranged in a surrounding manner, one edge of the side wall folding cloth is connected to the edge of the first box body, and the other edge of the side wall folding cloth is connected to the edge of the second box body, characterized in that: The invention also includes a first box expansion zipper and a second box expansion zipper, wherein the first box expansion zipper and the second box expansion zipper are both located between the first box and the second box, the head ends of the two first chain tooth belts of the first box expansion zipper and the head ends of the two second chain tooth belts of the second box expansion zipper are both installed in the middle position of one side of the side wall folding cloth and are arranged in sequence from top to bottom, and the two first chain tooth belts of the first box expansion zipper are respectively arranged outward along the edges of the first box and the second box corresponding to their respective edges on the outer surface of the side wall folding cloth, and the tail ends of the two first chain tooth belts of the first box expansion zipper exceed the end fixing positions of the head ends of the two first chain tooth belts of the first box expansion zipper and / or the two second chain tooth belts of the second box expansion zipper after being wrapped around once. The end fixed position of the head end of the tooth tape, the two second chain tooth tapes of the second box expansion zipper are respectively arranged on the outer surface of the side wall folding cloth, and the tail ends of the two second chain tooth tapes of the second box expansion zipper exceed the end fixed position of the head end of the two first chain tooth tapes of the first box expansion zipper and / or the end fixed position of the head end of the two second chain tooth tapes of the second box expansion zipper after circling once, and are located above the inner side edge of the tail end of the two first chain tooth tapes of the first box expansion zipper, and the tail ends of the two first chain tooth tapes of the first box expansion zipper and the tail ends of the two second chain tooth tapes of the second box expansion zipper are both located at the head end of the two first chain tooth tapes of the first box expansion zipper and the outer side edge of the head end of the two second chain tooth tapes of the second box expansion zipper.
2. The graded expandable luggage according to claim 1, characterized in that: It also includes a third box expansion zipper, the head ends of the two third chain tooth belts of the third box expansion zipper are installed in the middle position of one side of the side wall folded cloth and are located below the head ends of the two second chain tooth belts of the second box expansion zipper, the two third chain tooth belts of the third box expansion zipper are respectively arranged around the outer surface of the side wall folded cloth, and the tail ends of the two third chain tooth belts of the third box expansion zipper exceed the end fixed position of the head ends of the two first chain tooth belts of the first box expansion zipper after one circle, the second box The end fixed position of the head end of the two second chain tooth tapes of the expansion zipper and / or the end fixed position of the head end of the two third chain tooth tapes of the third box expansion zipper, and are located above the inner side edge of the tail end of the two second chain tooth tapes of the second box expansion zipper, and the tail ends of the two third chain tooth tapes of the third box expansion zipper are both located at the head ends of the two first chain tooth tapes of the first box expansion zipper, the head ends of the two second chain tooth tapes of the second box expansion zipper and the outer sides of the head ends of the two third chain tooth tapes of the third box expansion zipper.
3. The graded expandable luggage according to claim 1, characterized in that: The inner wall of the inner cavity of the bag formed by the first box body, the side wall folded cloth and the second box body is covered with lining, and the inner side surface of the lining is connected to a lining expansion zipper which is arranged in a surrounding manner. The head ends of the two fourth chain tooth tapes of the lining expansion zipper are both located between the tail ends of the two fourth chain tooth tapes of the lining expansion zipper, and the tail ends of the two fourth chain tooth tapes of the lining expansion zipper are fixed at the end positions exceeding the head ends of the two fourth chain tooth tapes of the lining expansion zipper after being circled once.
4. The graded expandable luggage according to claim 1, characterized in that: A front opening communicating with the interior of the second box body is provided on the front side of the second box body, a front cover is provided at the front opening of the second box body, and the second box body and the front cover are connected via a front cover opening and closing connector.
5. The graded expandable luggage according to claim 4, characterized in that: The front cover opening and closing connecting piece is configured as a front cover opening and closing zipper.