Spiral expansion type luggage
By setting up a spiral box expansion zipper in the luggage, the problem that existing luggage cannot achieve multi-level expansion is solved, and user-defined capacity expansion is achieved, improving flexibility and convenience of use.
Patent Information
- Application Number
- CN202421640683.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-11
AI Technical Summary
Existing luggage cannot achieve multi-level expansion, and the expansion capacity is fixed, which cannot meet the flexible needs of users.
A spiral enlarged bag is designed. By setting a spiral enlarged box between the first box and the second box, the user can selectively open or close the zipper according to the number of turns to achieve multi-stage enlargement.
Multi-level expansion of luggage and bags has been achieved, and users can freely choose to expand their capacity, which improves flexibility and convenience of use, while reducing costs.
Smart Images
Figure CN222853327U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bags, and more specifically to a spiral expansion type 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 spiral expandable luggage with a simpler structure, which only requires one spiral case expansion zipper to achieve multi-level expansion of the luggage, the expansion capacity can be freely selected by the user, has good flexibility, is easy to use and prepare, and has a lower cost.
[0005] To achieve the above-mentioned purpose, the utility model provides a spiral expansion type luggage, comprising a first box body, a second box body, a side wall folding cloth and a spiral box body expansion zipper located between the first box body and the second box body, 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, the spiral box body expansion zipper comprises a first chain tooth belt, a second chain tooth belt and a box body expansion zipper head, the box body expansion zipper head is movably installed between the first chain tooth belt and the second chain tooth belt, the first chain tooth belt and the second chain tooth belt are respectively sewn and connected to the side wall folding cloth, and the heads of the first chain tooth belt and the second chain tooth belt The ends of the first and second chain tooth belts are both installed at the middle position of one side of the side wall folded cloth, the belt body of the first chain tooth belt is spirally arranged on the outer surface of the side wall folded cloth from the middle position of one side of the side wall folded cloth toward the first box body until the tail end of the first chain tooth belt is close to the edge of the first box body, the belt body of the second chain tooth belt is spirally arranged on the outer surface of the side wall folded cloth from the middle position of one side of the side wall folded cloth toward the second box body until the tail end of the second chain tooth belt is close to the edge of the second box body, and the tail ends of the first and second chain tooth belts both exceed the end fixing positions of the head ends of the first and second chain tooth belts or are close to the end fixing positions of the head ends of the first and second chain tooth belts.
[0006] Preferably, the first and second fastener tapes are spirally wound around the outer surface of the side wall folded cloth for at least one circle.
[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, the inner side surface of the lining is connected with a lining expansion zipper which is arranged in a surrounding manner, the lining expansion zipper comprises a third chain tooth belt, a fourth chain tooth belt and a lining expansion zipper head, the lining expansion zipper head is movably installed between the third chain tooth belt and the fourth chain tooth belt, the third chain tooth belt and the fourth chain tooth belt are respectively sewn and connected to the lining, the head ends of the third chain tooth belt and the fourth chain tooth belt are both installed in the middle position of one side of the lining, the belt body of the third chain tooth belt is spirally arranged on the outer surface of the lining from the middle position of one side of the lining toward the first box body, the belt body of the fourth chain tooth belt is spirally arranged on the outer surface of the lining from the middle position of one side of the lining toward the second box body, and the tail ends of the third chain tooth belt and the fourth chain tooth belt are both beyond the end fixing position of the head end of the third chain tooth belt and the fourth chain tooth belt or close to the end fixing position of the head end of the third chain tooth belt and the fourth chain tooth belt.
[0008] Preferably, the third and fourth fastener tapes are spirally wound around the outer surface of the lining at least once.
[0009] 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.
[0010] Preferably, the front cover opening and closing connection piece is configured as a front cover opening and closing zipper.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. The structure of the utility model is simpler. It only needs to set a spiral box expansion zipper between the first box body and the second box body on the outer surface of the side wall folding cloth to achieve multi-level expansion of the luggage. The user can selectively open or close the box expansion zipper according to the number of turns. The expansion capacity of the luggage can be freely selected by the user, which has good flexibility, is easy to use and prepare, and has lower cost.
[0013] 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
[0014] 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.
[0015] Figure 1 It is a schematic diagram of the structure of the spiral expansion type luggage provided by the embodiment of the utility model when the expansion zippers of the luggage are fully opened;
[0016] Figure 2 yes Figure 1 A magnified view of the local structure of the box expansion zipper;
[0017] Figure 3 It is a structural schematic diagram of the spiral expansion type luggage provided by the embodiment of the utility model when the expansion zipper of the luggage body is opened one circle and closed one circle;
[0018] Figure 4 yes Figure 3 A magnified view of the local structure of the box expansion zipper;
[0019] Figure 5 It is a schematic diagram of the structure of the spiral expansion type luggage provided by the embodiment of the utility model when the expansion zippers of the luggage body are all closed;
[0020] Figure 6 yes Figure 5 A magnified view of the local structure of the box expansion zipper;
[0021] Figure 7 It is a schematic diagram of the structure of the spiral expansion type luggage provided by the embodiment of the utility model when the lining expansion zipper is completely closed;
[0022] Figure 8 It is a schematic structural diagram of the spiral expansion type luggage provided by the embodiment of the utility model when the lining expansion zipper is fully 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 spiral expansion type luggage, including a first box body 1, a second box body 2, a side wall folding cloth 3 and a spiral box body expansion zipper 4 and other components. The following is a detailed description of each component of this embodiment in conjunction with 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 Figures 1 to 6As shown, only one spiral case expansion zipper 4 is provided, which is located between the first case 1 and the second case 2. Specifically, the spiral case expansion zipper 4 may include a first chain tooth belt 41, a second chain tooth belt 42 and a case expansion zipper head 43, the case expansion zipper head 43 is movably installed between the first chain tooth belt 41 and the second chain tooth belt 42, and the case expansion zipper head 43 can open or close the first chain tooth belt 41 and the second chain tooth belt 42 when pulled. Among them, the first chain tooth belt 41 and the second chain tooth belt 42 are respectively sewn and connected to the side wall folded cloth 3, and the head ends of the first chain tooth belt 41 and the second chain tooth belt 42 are both installed in the middle position of one side of the side wall folded cloth 3, and the belt body of the first chain tooth belt 41 is spirally arranged on the outer surface of the side wall folded cloth 3 from the middle position of one side of the side wall folded cloth 3 toward the first box body, until the tail end of the first chain tooth belt 41 is close to the edge of the first box body 1, and the belt body of the second chain tooth belt 42 is spirally arranged on the outer surface of the side wall folded cloth 3 from the middle position of one side of the side wall folded cloth 3 toward the second box body 2, until the tail end of the second chain tooth belt 42 is close to the edge of the second box body 2, and the tail ends of the first chain tooth belt 41 and the second chain tooth belt 42 both exceed the end fixing position of the head end of the first chain tooth belt 41 and the second chain tooth belt 42 or are close to the end fixing position of the head end of the first chain tooth belt 41 and the second chain tooth belt 42.
[0028] In this embodiment, preferably, the first and second chain tooth belts 41 and 42 are spirally wound around the outer surface of the side wall folding cloth 3 for at least two turns, so that secondary capacity expansion can be achieved. Of course, according to actual needs, they can also be wound around one, three or more turns, not limited to this embodiment.
[0029] like Figure 1 and Figure 2 As shown, after the box expansion zipper head 43 is pulled around twice to fully open the spiral box expansion zipper 4, the box expansion zipper head 43 returns to the head end position of the first chain tooth belt 41 and the second chain tooth belt 42, the first box body 1 and the second box body 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).
[0030] like Figure 3 and Figure 4 As shown, when the box expansion zipper head 43 is pulled around to make the spiral box expansion zipper 4 in a semi-open state, one circle of the first chain tooth belt 41 and the second chain tooth belt 42 is closed and the other circle of the belt body is open, the bag is in the first level expansion state, and the expansion capacity is reduced.
[0031] like Figure 5 and Figure 6As shown, when the box expansion zipper head 43 is pulled to the tail end of the first chain tooth tape 41 and the second chain tooth tape 42, the second box expansion zipper 5 is in a fully closed state. At this time, the first box 1 and the second box 2 are close to each other, and the bag is in a non-expanded state.
[0032] like Figure 1 As shown, the front of the second box body 2 is provided with a front opening communicating with the interior thereof, and a front cover 5 is provided at the front opening of the second box body 2, and the second box body 2 and the front cover 5 are connected via a front cover opening and closing connector. In this embodiment, the front cover opening and closing connector can be preferably configured as a front cover opening and closing zipper 6, and of course, in other embodiments, it can also be configured as an opening and closing connector such as a lock, a buckle, a password lock, etc., which is not limited to this embodiment.
[0033] Embodiment 2
[0034] The second embodiment of the present invention provides a spiral expansion type luggage, which makes the following improvements on the basis of the above-mentioned first embodiment:
[0035] Such as 7 and Figure 8 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 is covered with a lining 7, and the inner side of the lining 7 is connected with a lining expansion zipper 8 arranged around. Specifically, the lining expansion zipper 8 may include a third chain tooth belt 81, a fourth chain tooth belt 82 and a lining expansion zipper head 83, and the lining expansion zipper head 83 is movably installed between the third chain tooth belt 81 and the fourth chain tooth belt 82. When the lining expansion zipper head 83 is pulled, the third chain tooth belt 81 and the fourth chain tooth belt 82 are respectively sewn and connected to the lining, and the head ends of the third chain tooth belt 81 and the fourth chain tooth belt 82 are both installed in the middle position of one side of the lining. The belt body of the third chain tooth belt 81 is spirally arranged on the outer surface of the lining 7 from the middle position of one side of the lining 7 toward the first box body, and the belt body of the fourth chain tooth belt 82 is spirally arranged on the outer surface of the lining 7 from the middle position of one side of the lining 7 toward the second box body. The tail ends of the third chain tooth belt 81 and the fourth chain tooth belt 82 both exceed the end fixed position of the head end of the third chain tooth belt 81 and the fourth chain tooth belt 82 or are close to the end fixed position of the head end of the third chain tooth belt 81 and the fourth chain tooth belt 82.
[0036] In the present embodiment, the third fastener tape 81 and the fourth fastener tape 82 are spirally wound around the outer surface of the lining 7 for at least one circle, preferably one circle, two circles or three circles.
[0037] When the third chain tooth tape 81 and the fourth chain tooth tape 82 of the lining expansion zipper 8 are completely closed, the lining portion between the third chain tooth tape 81 and the fourth chain tooth tape 82 can be folded and stored, and the head ends of the third chain tooth tape 81 and the fourth chain tooth tape 82 can be buried inside the tail ends of the third chain tooth tape 81 and the fourth chain tooth tape 82.
[0038] When the third and fourth chain teeth 81 and 82 of the lining expansion zipper 8 are fully opened, the lining can be expanded in the thickness direction of the bag, so that it can better cooperate with the case body for expansion. The lining expansion zipper 8 can also allow the lining to achieve multi-level expansion.
[0039] To sum up, the structure of the utility model is simpler. It only needs to set a spiral box expansion zipper between the first box body and the second box body on the outer surface of the side wall folding cloth to enable the luggage to achieve multi-level expansion. The user can selectively open or close the box expansion zipper according to the number of turns. The expansion capacity of the luggage can be freely selected by the user, with good flexibility, easy use and preparation, and lower cost.
[0040] 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 spiral expansion type 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 spiral box expansion zipper located between the first box and the second box, the spiral box expansion zipper including a first chain tooth belt, a second chain tooth belt and a box expansion zipper head, the box expansion zipper head is movably installed between the first chain tooth belt and the second chain tooth belt, the first chain tooth belt and the second chain tooth belt are respectively sewn and connected with the side wall folded cloth, the head ends of the first chain tooth belt and the second chain tooth belt are both installed at the middle position of one side of the side wall folded cloth, and the belt body of the first chain tooth belt is extended from the middle position of one side of the side wall folded cloth to the first box. The first and second link belts are spirally arranged on the outer surface of the side wall folded cloth until the tail end of the first link belt approaches the edge of the first box body, and the belt body of the second link belt is spirally arranged on the outer surface of the side wall folded cloth from the middle position of one side of the side wall folded cloth toward the second box body until the tail end of the second link belt approaches the edge of the second box body, and the tail ends of the first and second link belts exceed the end fixing positions of the head ends of the first and second link belts or are close to the end fixing positions of the head ends of the first and second link belts.
2. The spiral expansion type bag according to claim 1, characterized in that: The first and second fastener tapes are spirally wound around the outer surface of the side wall folded cloth for at least one turn.
3. The spiral expansion type bag according to claim 1, characterized in that: The inner wall of the luggage cavity 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 with a lining expansion zipper which is arranged in a surrounding manner, and the lining expansion zipper includes a third chain tooth belt, a fourth chain tooth belt and a lining expansion zipper head, and the lining expansion zipper head is movably installed between the third chain tooth belt and the fourth chain tooth belt, and the third chain tooth belt and the fourth chain tooth belt are respectively sewn and connected to the lining, and the head ends of the third chain tooth belt and the fourth chain tooth belt are both installed in the middle position of one side of the lining, the belt body of the third chain tooth belt is spirally arranged on the outer surface of the lining from the middle position of one side of the lining toward the first box body, and the belt body of the fourth chain tooth belt is spirally arranged on the outer surface of the lining from the middle position of one side of the lining toward the second box body, and the tail ends of the third chain tooth belt and the fourth chain tooth belt are both beyond the end fixing position of the head end of the third chain tooth belt and the fourth chain tooth belt or close to the end fixing position of the head end of the third chain tooth belt and the fourth chain tooth belt.
4. The spiral expansion type bag according to claim 3, characterized in that: The third and fourth fastener tapes are spirally wound around the outer surface of the lining for at least one circle.
5. The spiral expansion type bag 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.
6. The spiral expansion type bag according to claim 5, characterized in that: The front cover opening and closing connecting piece is configured as a front cover opening and closing zipper.