trolley case

Abstract

This application discloses a rolling suitcase, comprising a first case body, a second case body, an adjustment assembly, and a switch assembly. The first case body has a first groove. The adjustment assembly includes a connecting cylinder and a first zipper. The connecting cylinder is slidably mounted in the first groove and at least partially extends out of the first groove opening. The first zipper is installed between the side of the connecting cylinder away from the first groove body and the periphery of the first groove opening. The second case body is connected to the connecting cylinder via the switch assembly. This technical solution improves the overall structural stability of the rolling suitcase.

Description

Technical Field

[0001] This application relates to the field of luggage technology, and in particular to a rolling suitcase. Background Technology

[0002] Rolling suitcases are a common tool for carrying items. As people's living standards continue to improve, rolling suitcases have become an indispensable item for people's travels. They can be used to store clothing, personal care products and souvenirs needed for the journey.

[0003] To increase the storage space of rolling suitcases and to reduce their size when no items are needed, many rolling suitcases with variable storage space have emerged in the prior art. These suitcases typically utilize zippers and fabric to achieve variability in storage space; when more space is needed, the zipper is opened to allow the fabric to stretch and increase the storage space, while when less space is needed, the zipper is closed to fold the fabric and reduce the storage space.

[0004] However, the fabric is soft, so the unfolded suitcase needs to rely on the items stored in the storage space for support. But the items stored in the storage space usually do not have enough support, so the overall structural stability of the suitcase is poor, which may even affect the user's use of the suitcase. Utility Model Content

[0005] The main objective of this application is to provide a rolling suitcase that aims to improve the problem of poor overall structural stability of existing rolling suitcases with adjustable storage space after unfolding.

[0006] To achieve the above objectives, the present application proposes a rolling suitcase, which includes a first case body, a second case body, an adjustment assembly, and a switch assembly; wherein,

[0007] The first housing is provided with a first groove;

[0008] The adjusting assembly includes a connecting cylinder and a first zipper. The connecting cylinder is slidably mounted on the first groove and extends at least partially out of the first groove opening of the first groove. The first zipper is installed between the side of the connecting cylinder away from the first groove and the periphery of the first groove opening.

[0009] The second housing is connected to the connecting cylinder via the switch assembly.

[0010] In some embodiments of this application, the outline of the connecting cylinder is adapted to the peripheral wall of the first groove, and the outer peripheral wall of the connecting cylinder slides against the peripheral wall of the first groove to be slidably installed in the first groove.

[0011] In some embodiments of this application, the peripheral wall of the first groove is recessed with a first guide groove, and the first guide groove extends along the depth direction of the first groove. The outer peripheral wall of the connecting cylinder is protruded with a first guide rib, and the first guide rib extends along the depth direction of the first groove. The first guide rib slides in cooperation with the first guide groove.

[0012] In some embodiments of this application, the peripheral wall of the first groove body is provided with a second guide rib, and the second guide rib is also provided to extend along the depth direction of the first groove body. The outer peripheral wall of the connecting cylinder is provided with a second guide groove, and the second guide groove rib is also provided to extend along the depth direction of the first groove body. The second guide rib and the second guide groove are slidably engaged.

[0013] In some embodiments of this application, at least one limiting member is also provided on the bottom wall of the first groove, the limiting member extends along the depth direction of the first groove, and the limiting member slides against the inner peripheral wall of the connecting cylinder.

[0014] In some embodiments of this application, the connecting cylinder is a square shape with two through sides and has four corners. The bottom wall of the first groove is provided with four limiting members, and the four limiting members slide against the corresponding corners respectively.

[0015] In some embodiments of this application, the adjustment component further includes an elastic cloth, which is fixedly connected to the connecting cylinder and the first housing respectively, and covers the gap between the connecting cylinder and the first housing.

[0016] In some embodiments of this application, the switch assembly includes a connector and a switch, the second housing is rotatably connected to the connecting cylinder via the connector, the second housing has a closed position and an open position relative to the connecting cylinder, and when the second housing is in the closed position, the internal space of the second housing and the connecting cylinder and the first groove together form a receiving cavity;

[0017] The switch is used to lock the second housing and the connecting cylinder when the second housing is in the closed position.

[0018] In some embodiments of this application, the switch includes a second zipper, which is installed between the second housing and the connecting cylinder.

[0019] In some embodiments of this application, the second box is provided with a second groove. When the second box is in the closed position, the second groove of the second box, together with the internal space of the connecting cylinder and the first groove, forms a receiving cavity.

[0020] The rolling suitcase provided in this embodiment, through the above-described structural design, allows the user to keep the suitcase in a retracted state when needing limited space. Dragging the zipper head engages the two chains of the first zipper, making the suitcase compact and easy to carry. When needing more space, dragging the zipper head opens the two chains of the first zipper, allowing external force to be applied to the connecting cylinder, causing it to move away from the bottom wall of the first groove, thereby increasing the suitcase's storage space. With this design, the suitcase's storage space and volume can be changed by controlling the adjustment component. After the suitcase is unfolded, the connecting cylinder of the adjustment component can also support the space between the first and second suitcase bodies, improving the overall structural stability of the suitcase and enhancing the user experience. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the trolley case of this application;

[0023] Figure 2 for Figure 1 A cross-sectional view of the medium-sized rolling suitcase;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the first box in the middle.

[0025] Explanation of icon numbers:

[0026] 100. Luggage; 10. First box body; 11. First guide groove; 12. Limiting component; 20. Second box body; 30. Adjustment assembly; 31. Connecting cylinder; 311. First guide rib; 32. First zipper; 40. Switch assembly.

[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0031] The embodiments of this application provide a trolley case 100, please refer to the following: Figures 1 to 3 The suitcase 100 includes a first case 10, a second case 20, an adjustment assembly 30, and a switch assembly 40. The first case 10 and the second case 20 are typically made of plastic, but can also be made of other materials, such as metal.

[0032] The first housing 10 is provided with a first groove. The adjustment component 30 includes a connecting cylinder 31 and a first zipper 32. The connecting cylinder 31 is slidably installed in the first groove and extends at least partially out of the first groove opening of the first groove. The first zipper 32 is installed between the side of the connecting cylinder 31 away from the first groove and the periphery of the first groove opening. The second housing 20 is connected to the connecting cylinder 31 through a switch component 40.

[0033] Similarly, the connecting cylinder 31 is usually made of plastic. There are several ways to slide the connecting cylinder 31 into the first groove. In one implementation, the side wall of the first groove is provided with a slide rail extending along its depth direction, and the connecting cylinder 31 is slidably mounted on the slide rail by a slider. In another implementation, such as... Figure 1 and Figure 2As shown, the outline of the connecting cylinder 31 is adapted to fit the peripheral wall of the first groove. The outer peripheral wall of the connecting cylinder 31 slides against the peripheral wall of the first groove, thus slidably mounting it in the first groove. This arrangement allows the outer peripheral wall of the connecting cylinder 31 to be tightly attached to the peripheral wall of the first groove. This not only reduces the space occupied by the connecting cylinder 31 in the first groove, improving the utilization rate of the internal space of the suitcase 100, but also improves the stability of the connecting cylinder 31 when sliding relative to the first groove through close contact with the first groove. It should be emphasized that the connecting cylinder 31 is slidably mounted in the first groove and will not detach from the first groove under normal circumstances.

[0034] Understandably, the first chain can be a common zipper, consisting of two chains and a zipper head. The first zipper 32 being installed between the side of the connecting cylinder 31 away from the first groove and the periphery of the first groove opening means that one chain of the first zipper 32 is installed on the side of the connecting cylinder 31 away from the first groove, and the other chain of the first zipper 32 is installed on the periphery of the first groove opening. The zipper head is mounted on both chains. When the connecting cylinder 31 slides towards the bottom wall of the first groove to its limit position, the two chains of the first zipper 32 can be opened or engaged by dragging the zipper head. Dragging the zipper head engages the two chains of the first zipper 32, keeping the trolley case 100 in a retracted state. Dragging the zipper head opens the two chains of the first zipper 32, allowing the connecting cylinder 31 to slide relative to the first groove.

[0035] The aforementioned switch assembly 40 can be any switch assembly 40 commonly found on commercially available trolley cases 100. In some examples, the switch assembly 40 includes multiple quick-release structures, and the second housing 20 is detachably connected to the connecting cylinder 31 via these quick-release structures, meaning the second housing 20 and the connecting cylinder 31 can be completely separated. In some examples, the switch assembly 40 includes a connector and a switch element. The second housing 20 is rotatably connected to the connecting cylinder 31 via the connector. The second housing 20 has a closed position and an open position relative to the connecting cylinder 31. When the second housing 20 is in the closed position, the internal space of the second housing 20, the connecting cylinder 31, and the first groove together form a receiving cavity. The switch element is used to lock the second housing 20 and the connecting cylinder 31 when the second housing 20 is in the closed position. This switch element can be a zipper, a latch, etc., which will not be listed here. This design is intended to facilitate the user in opening or closing the storage space of the trolley case 100 using the switch assembly 40.

[0036] The rolling suitcase 100 typically also includes a retractable handle assembly (not shown), rotatable casters, and a handle.

[0037] The rolling suitcase 100 provided in this embodiment, through the above-described structural design, allows the user to keep the suitcase 100 in a retracted state when a small space is needed. Dragging the zipper head engages the two chains of the first zipper 32, making it compact and convenient for the user to carry. When a larger space is needed, dragging the zipper head opens the two chains of the first zipper 32, allowing external force to be applied to the connecting cylinder 31, causing it to move away from the bottom wall of the first groove, thereby increasing the storage space of the rolling suitcase 100. With this design, the storage space and volume of the rolling suitcase 100 can be changed by controlling the adjustment component 30. After the rolling suitcase 100 is unfolded, the connecting cylinder 31 of the adjustment component 30 can also support the space between the first box body 10 and the second box body 20, improving the overall structural stability of the rolling suitcase 100 and enhancing the user experience.

[0038] In some examples, the suitcase 100 also includes a locking element for locking the first case 10 and the connecting tube 31 to restrict the sliding of the connecting tube 31 relative to the first case 10; when the user applies an external force to the connecting tube 31, causing the connecting tube 31 to slide to a suitable position, the locking element can be used to lock the first case 10 and the connecting tube 31.

[0039] In some examples, such as Figures 1 to 3 As shown, a first guide groove 11 is recessed in the peripheral wall of the first groove, and the first guide groove 11 extends along the depth direction of the first groove. A first guide rib 311 is protruding in the outer peripheral wall of the connecting cylinder 31, and the first guide rib 311 also extends along the depth direction of the first groove. The first guide rib 311 slides in engagement with the first guide groove 11. This arrangement aims to improve the sliding stability of the connecting cylinder 31 relative to the first groove by sliding the first guide rib 311 with the first guide groove 11, thereby further improving the overall structural stability of the trolley case 100.

[0040] In some examples, the peripheral wall of the first groove is provided with a second guide rib, which also extends along the depth direction of the first groove. The outer peripheral wall of the connecting cylinder 31 is provided with a second guide groove, and the second guide groove rib also extends along the depth direction of the first groove. The second guide rib and the second guide groove are slidably engaged. This arrangement aims to improve the sliding stability of the connecting cylinder 31 relative to the first groove by sliding the second guide rib and the second guide groove, thereby further improving the overall structural stability of the trolley case 100.

[0041] In some examples, such as Figure 2 and Figure 3As shown, at least one limiting member 12 is also protruding from the bottom wall of the first groove. The limiting member 12 extends along the depth direction of the first groove and slides against the inner peripheral wall of the connecting cylinder 31. This arrangement aims to improve the stability of the connecting cylinder 31 relative to the first groove by having the limiting member 12 slide against the inner peripheral wall of the connecting cylinder 31, so that the limiting member 12 and the peripheral wall of the first groove together clamp and limit the connecting cylinder 31, thereby improving the stability of the connecting cylinder 31 sliding relative to the first groove and further improving the overall structural stability of the trolley case 100.

[0042] In some examples, such as Figure 2 and Figure 3 As shown, the connecting cylinder 31 is a square block shape extending through both sides and has four corners. The bottom wall of the first groove is provided with four limiting members 12, which slide and abut against the corresponding corners. This design aims to improve the stability of the connecting cylinder 31 sliding relative to the first groove while dispersing the force on the connecting cylinder 31, making the sliding of the connecting cylinder 31 relative to the first groove smoother.

[0043] In some examples, the adjustment assembly 30 also includes an elastic cloth (not shown), which is fixedly connected to both the connecting cylinder 31 and the first housing 10, and covers the gap between the connecting cylinder 31 and the first housing 10. This arrangement not only prevents external dust, moisture, and other foreign objects from entering the gap between the connecting cylinder 31 and the first housing 10, improving the reliability of the suitcase 100, but also restricts the connecting cylinder 31 from sliding away from the first groove.

[0044] In some examples, the switch includes a second zipper, which is mounted between the second housing 20 and the connecting cylinder 31. Referring to the first zipper 32, the second zipper typically also has two chains and a zipper head. The second zipper being mounted between the second housing 20 and the connecting cylinder 31 means that one chain of the second zipper is mounted on the second housing 20, the other chain is mounted on the connecting cylinder 31, and the zipper head is mounted on both chains. Dragging the zipper head causes the two chains of the second zipper to open or engage. One chain of the second zipper is adjacent to one chain of the first zipper 32.

[0045] Understandably, in some examples, the second housing 20 is generally flat and lid-shaped, which can close onto the side of the connecting cylinder 31 away from the bottom wall of the first groove. In some examples, the second housing 20 has a second groove, which, when the second housing 20 is in the closed position, forms a receiving cavity with the internal space of the connecting cylinder 31 and the first groove. This arrangement facilitates increasing the storage space of the suitcase 100.

[0046] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A rolling suitcase, characterized in that, The suitcase includes a first case body, a second case body, an adjustment assembly, and a switch assembly; wherein... The first housing is provided with a first groove; The adjustment assembly includes a connecting cylinder and a first zipper. The connecting cylinder is slidably mounted on the first groove and extends at least partially out of the first groove opening of the first groove. The first zipper is installed between the side of the connecting cylinder away from the first groove and the periphery of the first groove opening. The side wall of the first groove is provided with a slide rail extending along its depth direction, and the connecting cylinder is slidably mounted on the slide rail by a slider. The second housing is connected to the connecting cylinder via the switch assembly; The bottom wall of the first groove is also provided with at least one limiting member, which extends along the depth direction of the first groove and slides against the inner peripheral wall of the connecting cylinder. The connecting cylinder is a square block with two sides and four corners. The bottom wall of the first groove is provided with four limiting members, which slide and abut against the corresponding corners.

2. The suitcase as described in claim 1, characterized in that, The first groove is recessed in the peripheral wall of the first groove and extends along the depth direction of the first groove. The outer peripheral wall of the connecting cylinder is provided with a first guide rib and extends along the depth direction of the first groove. The first guide rib slides in conjunction with the first guide groove.

3. The suitcase as described in claim 1, characterized in that, The first groove body has a second guide rib protruding from its peripheral wall, and the second guide rib extends along the depth direction of the first groove body. The connecting cylinder has a second guide groove recessed on its outer peripheral wall, and the second guide groove rib extends along the depth direction of the first groove body. The second guide rib slides in conjunction with the second guide groove.

4. The suitcase as described in claim 1, characterized in that, The adjustment assembly also includes an elastic cloth, which is fixedly connected to the connecting cylinder and the first housing respectively, and covers the gap between the connecting cylinder and the first housing.

5. The suitcase as described in claim 1, characterized in that, The switch assembly includes a connector and a switch. The second housing is rotatably connected to the connecting cylinder via the connector. The second housing rotates relative to the connecting cylinder to have a closed position and an open position. When the second housing is in the closed position, the second housing, the internal space of the connecting cylinder, and the first groove together form a receiving cavity. The switch is used to lock the second housing and the connecting cylinder when the second housing is in the closed position.

6. The suitcase as described in claim 5, characterized in that, The switch includes a second zipper, which is installed between the second housing and the connecting cylinder.

7. The suitcase as described in claim 5, characterized in that, The second box is provided with a second groove. When the second box is in the closed position, the second groove of the second box, together with the internal space of the connecting cylinder and the first groove, forms a receiving cavity.

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