A pressure-resistant trolley case
The combination of diamond-shaped protrusions and pressure-boosting components solves the problem of localized stress concentration when luggage is checked in or stacked, enhancing the luggage's pressure resistance and stability, preventing collapse and shaking, and protecting the contents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN JUNFENG LEATHER CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-21
AI Technical Summary
Existing bags are prone to collapse, deformation or even cracking due to localized stress concentration during transport or stacking, and the contents are easily damaged due to shaking.
The design incorporates a combination of diamond-shaped protrusions and a pressurizing component. The diamond-shaped protrusions disperse stress, while the pressurizing component fills the cavity inside the box with an air bladder and an air pump, using air pressure to position the items and reduce shaking.
It effectively avoids localized stress concentration in bags and luggage, enhances pressure resistance, prevents collapse and breakage, reduces item movement, and protects fragile items.
Smart Images
Figure CN224522550U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage technology, specifically to a pressure-resistant trolley luggage. Background Technology
[0002] Rolling suitcases are an essential tool for modern travel, widely used for travel, business trips, studying abroad, and daily commutes. They facilitate carrying clothing, documents, and electronic devices, meeting diverse travel needs and greatly enhancing mobility.
[0003] Existing luggage is prone to collapse, deformation or even cracking due to localized stress concentration when being transported or stacked. The items inside the luggage also shake violently due to gaps during movement, which can easily lead to damage to fragile items. Therefore, a pressure-resistant trolley luggage is proposed. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a pressure-resistant trolley bag.
[0005] The technical solution adopted by this utility model to solve its technical problem is a pressure-resistant trolley bag, including a case body and a pressure boosting component. The pressure boosting component is disposed in the case body. The case body includes a first case cover and a second case cover. The first case cover and the second case cover are connected by a hinge at one side of the case cover joint. The first case cover and the second case cover are provided with a buckle at the other side of the case cover joint. A trolley is provided on the side of the second case cover away from the first case cover. Both the first and second box covers have diamond-shaped protrusions on their opposite outer peripheries to disperse stress. The pressurization assembly is located between the first and second tank covers.
[0006] By adopting the above technical solution, a luggage structure with good pressure resistance is provided for luggage users through the combination of a box body with diamond-shaped protrusions and a pressure-boosting component.
[0007] Specifically, the pressurization assembly includes an airbag for separating the cavity between the first and second lids, and an air pump for inflating the airbag, wherein the inflation end of the air pump is connected to the airbag.
[0008] By adopting the above technical solution, and by setting up the pressurization component, the air bladder of the pressurization component can be inflated to dynamically fill the cavity inside the box. The air pressure positioning reduces the shaking amplitude of fragile items and effectively resists rough handling.
[0009] Specifically, a storage box for storing the air pump is connected to one end of the top of the second box cover.
[0010] Specifically, the bottom of the second box cover is provided with wheel grooves at both ends. The wheel grooves are rotatably connected to omnidirectional wheels through bearings. The omnidirectional wheel includes a hub and a driven wheel. The outer circumference of the hub is provided with hub teeth at equal intervals. A driven wheel is installed between every two hub teeth. The radial direction of the driven wheel is perpendicular to the tangent direction of the outer circumference of the hub.
[0011] The beneficial effects of this utility model are as follows: By combining a box with rhomboid protrusions and a pressurizing component, a pressure-resistant bag structure is provided for users. The rhomboid protrusions decompose vertical pressure into oblique components through multi-directional slopes, allowing the load to diffuse outwards along the protruding edges, avoiding localized stress concentration and reducing the risk of material yielding. The rhomboid protrusions form a three-dimensional truss structure, similar to a space frame system, utilizing the principle of triangular stability to enhance overall stiffness and increase the moment of inertia of the cross-section, thereby strengthening bending resistance. When used in conjunction with the pressurizing component, it can inflate and fill the cavity between the first and second lids of the bag when the internal space is not fully filled. This allows for air pressure positioning of items, preventing them from swaying excessively and increasing the overall pressure resistance of the bag. It also prevents the bag surface from collapsing under pressure, solving the problem that existing bags are prone to collapse, deformation, or even cracking due to localized stress concentration during transport or stacking, and that items inside the bag shake violently due to gaps during movement, easily leading to damage to fragile items. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a closed schematic diagram of the present invention; Figure 2 This is a schematic diagram showing the opening of this utility model; Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle; In the diagram: Box 1, First box cover 11, Second box cover 12, Diamond protrusion 13, Wheel groove 14, Omnidirectional wheel 15, Inflatable bladder 21, Storage box 22, Air pump 23. Detailed Implementation
[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0015] like Figure 1-3As shown, the present invention provides a pressure-resistant trolley case, including a case body 1 and a pressure-boosting component. The pressure-boosting component is disposed inside the case body 1. The case body 1 includes a first cover 11 and a second cover 12. The first cover 11 and the second cover 12 are connected by a hinge at one side of their fitting joint. A buckle is provided at the other side of their fitting joint. A trolley rod is provided on the side of the second cover 12 away from the first cover 11. Both the outer periphery of the opposite sides of the first box cover 11 and the second box cover 12 are provided with diamond-shaped protrusions 13 for dispersing stress. The pressurization component is located between the first cover 11 and the second cover 12.
[0016] The present invention also includes, wherein the pressurization assembly includes an airbag 21 for separating the cavity between the first box cover 11 and the second box cover 12, and an air pump 23 for inflating the airbag 21, wherein the inflation end of the air pump 23 is connected to the airbag 21.
[0017] When in use, by inflating the air bladder 21 of the pressurizing component, the cavity inside the box can be dynamically filled. The air pressure positioning reduces the shaking amplitude of fragile items and effectively resists rough handling.
[0018] The present invention also includes a storage box 22 for storing the air pump 23 connected to one end of the top of the second box cover 12; The air pump 23 can be a manual balloon air pump, a pedal-operated air pump, or an electric air pump.
[0019] The present invention also includes that the bottom ends of the second box cover 12 are respectively provided with wheel grooves 14, and the wheel grooves 14 are rotatably connected to omnidirectional wheels 15 through bearings. The omnidirectional wheel 15 includes a hub and a driven wheel. The outer circumference of the hub is provided with hub teeth at equal intervals, and a driven wheel is installed between every two hub teeth. The radial direction of the driven wheel is perpendicular to the tangent direction of the outer circumference of the hub.
[0020] In use, the required items are placed in the cavity of the first lid 11 or the second lid 12, and the inflatable bladder 21 is placed between the cavities of the first lid 11 and the second lid 12 to separate the items between the two cavities. Then, the first lid 11 and the second lid 12 are closed, and the buckles are engaged. As needed, the air pump 23 is used to inflate the inflatable bladder 21, causing it to expand and fill the cavity with air, which helps to position the items, reduces item movement, and increases the overall support strength of the box. With the use of the diamond-shaped protrusion 13, the diamond-shaped protrusion 13 decomposes the vertical pressure into oblique components through multi-directional slopes, avoids local stress concentration, further improves the pressure resistance of the box, and improves the overall stability of the box.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pressure-resistant trolley case, characterized in that, The device includes a housing (1) and a pressurization assembly. The pressurization assembly is disposed inside the housing (1). The housing (1) includes a first cover (11) and a second cover (12). The first cover (11) and the second cover (12) are connected by a hinge at one side of their fit. The first cover (11) and the second cover (12) are provided with a buckle at the other side of their fit. A pull rod is provided on the side of the second cover (12) away from the first cover (11). Both the first box cover (11) and the second box cover (12) have diamond-shaped protrusions (13) on their opposite outer periphery to disperse stress. The pressurization assembly is disposed between the first tank cover (11) and the second tank cover (12); The pressurization assembly includes an airbag (21) for separating the cavity between the first cover (11) and the second cover (12), and an air pump (23) for inflating the airbag (21), the inflation end of the air pump (23) being connected to the airbag (21). The top end of the second box cover (12) is connected to a storage box (22) for storing the air pump (23); The bottom ends of the second box cover (12) are respectively provided with wheel grooves (14). The wheel grooves (14) are rotatably connected to omnidirectional wheels (15) through bearings. The omnidirectional wheel (15) includes a hub and a driven wheel. The outer circumference of the hub is provided with hub teeth at equal intervals. A driven wheel is installed between every two hub teeth. The radial direction of the driven wheel is perpendicular to the tangent direction of the outer circumference of the hub.