A trolley case with a protection device

Abstract

The utility model discloses a trolley case with protection device belongs to trolley case technical field, and its technical scheme main points include trolley case body, the inner wall of trolley case body rear side and the inner wall of front side all are fixedly connected with buffer mechanism, the chamfer of trolley case body surface is fixedly connected with protection mechanism, and buffer mechanism adopts the multilayer synergic structure of foam board plus buffer spring and contact plate, forms the stepped energy absorption path, when trolley case encounters external impact, such as shipment loading and unloading collision or accidental drop, first through the contact plate and receive the impact force, then buffer spring absorbs part energy through the elastic deformation, and the remaining impact force is further dispersed by the foam board, and the material itself has excellent compression resistance, resilience, and the honeycomb hole set up on the surface, can maximize the energy absorption through the extrusion deformation of honeycomb structure, avoid the impact force direct transmission to the article in the box, effectively reduce the risk of impact, fragmentation of electronic equipment, fragile goods etc.

Description

Technical Field

[0001] This utility model relates to the field of trolley case technology, and in particular to a trolley case equipped with a protective device. Background Technology

[0002] A rolling suitcase is a travel or outing storage tool that combines storage and portability. Its core features are a retractable handle and swivel wheels at the bottom, allowing for easy movement by pulling the handle. It is mainly used to store clothing, personal items, travel gear, and other items, and is widely used in business trips, tourism, and study. It optimizes the convenience of movement based on traditional suitcases and is an indispensable portable equipment for modern travel.

[0003] To address the aforementioned issues, existing patents offer solutions, but current suitcases lack a cushioning structure to withstand rough handling and everyday bumps. This means that in scenarios involving rough handling, such as when luggage is thrown, stacked, or squeezed during airport check-in, suitcases without cushioning structures are prone to dents and cracks. Soft-shell suitcases may also experience fabric tearing and seam rupture due to impact, thus shortening the overall lifespan of the suitcase.

[0004] Therefore, a trolley case equipped with a protective device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a rolling suitcase with a protective device, which can solve the problem that existing rolling suitcases lack a cushioning structure when encountering rough handling and bumps during daily use. As a result, in rough handling scenarios, such as when luggage is thrown, stacked and squeezed during airport check-in, the uncushioned suitcase is prone to dents and cracks, while soft-shell suitcases may have their fabric torn and seams burst due to impact, thus shortening the overall service life of the rolling suitcase.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a trolley case with a protective device, comprising a trolley case body, wherein a buffer mechanism is fixedly connected to the inner wall of the rear side and the inner wall of the front side of the trolley case body, and a protective mechanism is fixedly connected to the chamfer of the surface of the trolley case body. The buffer mechanism includes a buffer plate, several mounting slots, a foam board, a buffer spring, and a contact plate. The buffer plate is fixedly connected to the inner wall of the rear side and the inner wall of the front side of the trolley case body, respectively. The mounting slots are opened inside the buffer plate. The cross-linked polyethylene foam board is fixedly connected to the inner side of the mounting slot. The buffer spring is fixedly connected to both sides of the surface of the foam board. The contact plate is fixedly connected to the side of the buffer spring away from the foam board.

[0007] Preferably, the protective mechanism includes a protective shell, a connecting plate, and a reinforcing rod, wherein the protective shell is welded to the chamfered corners of the front and rear surfaces of the suitcase body, respectively.

[0008] Preferably, the connecting plates are welded between the left front protective shell and the right front protective shell, and between the left rear protective shell and the right rear protective shell.

[0009] Preferably, the reinforcing rods are welded between the left front top protective shell and the left front bottom protective shell, between the right front top protective shell and the right front bottom protective shell, between the left rear top protective shell and the left rear bottom protective shell, and between the right rear top protective shell and the right rear bottom protective shell.

[0010] Preferably, a buffer pad, made of foam material, is fixedly connected to the side of the contact plate away from the buffer spring.

[0011] Preferably, a protective pad is fixedly connected to the surface of the protective shell, and the protective pad is made of rubber material.

[0012] Preferably, the surface of the foam board has honeycomb pores, and the foam board is made of cross-linked polyethylene material.

[0013] Preferably, an anti-collision pad is fixedly connected to the surface of the connecting plate, and the anti-collision pad is made of silicone material.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The cushioning mechanism of this application adopts a multi-layer collaborative structure of foam board, cushioning spring and contact plate to form a stepped energy absorption path. When the suitcase is subjected to external impact, such as collision during transport or accidental drop, the impact force is first absorbed by the contact plate, then the cushioning spring absorbs part of the energy through elastic deformation, and the remaining impact force is further dispersed by the foam board. The material itself has excellent compression resistance and resilience. With the honeycomb holes on the surface, it can maximize the absorption of energy through the compression deformation of the honeycomb structure, avoid the impact force being directly transmitted to the items inside the suitcase, and effectively reduce the risk of bumps and breakage of electronic equipment, fragile items and other items due to impact.

[0016] 2. The protective mechanism of this application uses a protective shell as its core, which is fixed to the chamfered corner of the suitcase body by welding. The chamfer is the part of the suitcase that is most likely to be bumped during daily use, such as rubbing against the corner of the wall when pushing it or being squeezed by other luggage when checking it in. The protective shell, together with the connecting plate and the reinforcing rod, forms a frame-like protection. The connecting plate connects the protective shell on the same side horizontally, and the reinforcing rod reinforces the upper and lower protective shells vertically, making the protective mechanism a whole rigid frame. This greatly improves the deformation resistance of the corners of the suitcase, avoids the dents and cracks that are prone to occur at the chamfered corners of traditional suitcases, and extends the overall service life of the suitcase. Attached Figure Description

[0017] Figure 1This is an overall structural diagram of the trolley case with protective device according to this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the buffer pad of this utility model;

[0019] Figure 3 This is a schematic diagram of the buffer mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the protective mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the anti-collision pad of this utility model.

[0022] In the diagram, 1. Suitcase body; 2. Buffer mechanism; 21. Buffer plate; 22. Mounting groove; 23. Foam board; 24. Buffer spring; 25. Contact plate; 3. Protective mechanism; 31. Protective shell; 32. Connecting plate; 33. Reinforcing rod; 4. Buffer pad; 5. Protective pad; 6. Anti-collision pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A trolley case with a protective device includes a trolley case body 1. A buffer mechanism 2 is fixedly connected to the inner wall of the rear side and the inner wall of the front side of the trolley case body 1. A protective mechanism 3 is fixedly connected to the chamfered corner of the surface of the trolley case body 1. The buffer mechanism 2 includes a buffer plate 21, several mounting slots 22, a foam board 23, a buffer spring 24, and a contact plate 25. The buffer plate 21 is fixedly connected to the inner wall of the rear side and the inner wall of the front side of the trolley case body 1, respectively. The mounting slots 22 are formed inside the buffer plate 21. The cross-linked polyethylene foam board 23 is fixedly connected to the inner side of the mounting slot 22. The buffer spring 24 is fixedly connected to both sides of the surface of the foam board 23. The contact plate 25 is fixedly connected to the side of the buffer spring 24 away from the foam board 23.

[0026] In this embodiment: the suitcase body 1 provides a stable mounting carrier for the buffer mechanism 2 and the protective mechanism 3, while also undertaking the core storage function. The buffer plate 21 provides an installation position for the foam board 23 through the installation groove 22, ensuring that the foam board 23 remains stable after long-term use and repeated impacts. The installation groove 22 can firmly restrict the foam board 23 inside the buffer plate 21, preventing the foam board 23 from sliding or shifting during the movement and bumping of the suitcase. The foam board 23 can absorb a large amount of impact force through its own deformation. When the suitcase is impacted, the buffer spring 24 can quickly absorb part of the impact force by stretching or compressing, sharing the buffer pressure with the foam board 23, forming a dual energy absorption mode of buffer spring 24 and foam board 23. The contact plate 25 can evenly bear the reaction force from the items inside the suitcase or the impact force transmitted from the outside, avoiding excessive local pressure that could damage the items.

[0027] Specifically, such as Figure 4 As shown, the protective mechanism 3 includes a protective shell 31, a connecting plate 32, and a reinforcing rod 33. The protective shell 31 is welded to the chamfer on the front surface of the trolley case body 1 and the chamfer on the rear surface of the trolley case body 1, respectively.

[0028] Specifically, such as Figure 4 As shown, the connecting plate 32 is welded between the left front protective shell 31 and the right front protective shell 31, and between the left rear protective shell 31 and the right rear protective shell 31.

[0029] Specifically, such as Figure 4 As shown, the reinforcing rods 33 are respectively welded between the left front top protective shell 31 and the left front bottom protective shell 31, between the right front top protective shell 31 and the right front bottom protective shell 31, between the left rear top protective shell 31 and the left rear bottom protective shell 31, and between the right rear top protective shell 31 and the right rear bottom protective shell 31.

[0030] In this embodiment: by setting the protective shell 31, the protective shell directly resists external collisions through its own structure, avoiding direct contact between the chamfered corner and the collision object, reducing the risk of paint chipping and dents on the main body. The connecting plate 32 connects the left front side and right front side, and the left rear side and right rear side of the protective shell 31 on the same side laterally to form an overall protective frame. The reinforcing rod 33 connects the top and bottom of the protective shell 31 on the same side and the same surface, such as the left front side, longitudinally to make up for the vertical support gap of the protective shell 31. When the suitcase falls vertically, such as from the luggage rack, the reinforcing rod 33 can effectively disperse the vertical impact force and prevent the connection between the protective shell 31 and the main body from breaking due to excessive force.

[0031] Specifically, such as Figure 2 As shown, a buffer pad 4 is fixedly connected to the side of the contact plate 25 away from the buffer spring 24. The buffer pad 4 is made of foam material.

[0032] Specifically, such as Figure 5 As shown, a protective pad 5 is fixedly connected to the surface of the protective shell 31. The protective pad 5 is made of rubber material.

[0033] In this embodiment: By setting a buffer pad 4, the minor impact force transmitted by the contact plate 25 can be absorbed, further reducing the impact of vibration on the items inside the case. By setting the buffer pad 4 to be made of foam material, the foam material is soft and elastic, which can prevent the hard surface of the contact plate 25 from scratching or snagging the clothing, leather goods, and fabric items when in direct contact with the items inside the case. By setting a protective pad 5, when the protective shell 31 is hit, the protective pad 5 can absorb part of the impact force through its own deformation, reducing the impact force transmitted to the protective shell 31 and the main body, further reducing the risk of damage to the chamfered corners of the main body. By setting the protective pad 5 to be made of rubber material, the rubber material has high surface friction. When the suitcase is placed on a smooth surface, the protective pad 5 can increase the friction between the case and the ground, preventing the case from sliding at will.

[0034] Specifically, such as Figure 3 As shown, the surface of the foam board 23 has honeycomb holes, and the foam board 23 is made of cross-linked polyethylene material.

[0035] Specifically, such as Figure 5 As shown, a crash pad 6 is fixedly connected to the surface of the connecting plate 32. The crash pad 6 is made of silicone material.

[0036] In this embodiment: by setting honeycomb holes, the honeycomb structure has the characteristic of withstanding large pressure with less material. When impacted, the honeycomb holes on the surface of the foam board 23 can quickly disperse the impact force through the compression deformation of the honeycomb wall. By setting the foam board 23 to be made of cross-linked polyethylene material, the cross-linked polyethylene material itself has excellent compression resistance and resilience. When the suitcase encounters external impact, such as being dropped or collided during transport, the foam board 23 can absorb a large amount of impact force through its own deformation, avoiding the impact force being directly transmitted to the items inside the suitcase. By setting the anti-collision pad 6, the collision energy can be absorbed, preventing the connecting plate 32 from directly impacting the main body or other items, reducing scratches and dents on the side of the main body. By setting the anti-collision pad 6 to be made of silicone material, the silicone material has excellent high and low temperature resistance and aging resistance. Even in low or high temperature environments, it will not harden, crack or deteriorate, and can maintain its softness and elasticity for a long time, ensuring stable anti-collision effect.

[0037] Working principle: First, when the suitcase encounters external collisions during transportation or use, such as impacts during loading and unloading, rubbing against a corner while pushing, or accidental falls, the protective shell 31 directly resists the collision through its own structure, preventing the chamfered corners of the main body from directly contacting the impacting object. Simultaneously, the rubber protective pads 5 on the surface of the protective shell 31 absorb some of the impact force through elastic deformation, reducing the transmission of impact force to the protective shell 31 and the main body, initially reducing the risk of paint chipping and dents. If the impact force is large, the connecting plate 32, which connects the protective shell 31 laterally on the same side, will distribute the force to the entire protective frame, preventing individual protective shells 31 from tilting and deforming due to concentrated force. The longitudinally arranged reinforcing rod 33 further compensates for the vertical support gap of the protective shell 31. When the suitcase falls vertically, the reinforcing rod 33 can quickly disperse the vertical impact force, preventing the connection between the protective shell 31 and the main body from breaking due to excessive force. Then, after the outer layer of protection... Even if there is still residual impact force, it will still be transmitted to the inside of the suitcase. The contact plate 25 will first evenly absorb the impact force to avoid excessive local pressure that could damage the items. Then, the contact plate 25 will transmit the remaining impact force to the buffer spring 24. The buffer spring 24 will quickly absorb some of the energy through elastic deformation of stretching or compression. Then, the impact force that the buffer spring 24 has not fully absorbed will be transmitted to the foam board 23. The foam board 23 will further disperse and absorb the impact force through its own deformation. At the same time, the honeycomb holes on the surface of the foam board 23 will quickly spread the impact force to the entire foam board 23. Finally, after the impact ends, the buffer spring 24 will return to its original shape due to its elasticity. The foam board 23, the protective pad 5, the buffer pad 4, and the anti-collision pad 6 can all rebound after deformation. The honeycomb hole structure will also return to its initial shape. The connecting plate 32 and the reinforcing rod 33 will maintain the stability of the frame and ensure that the outer and inner protection layers can still be activated normally when the suitcase is impacted again in subsequent use.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A trolley case equipped with a protective device, comprising a trolley case body (1), characterized in that: The inner walls of the rear and front sides of the suitcase body (1) are fixedly connected to a buffer mechanism (2). A protective mechanism (3) is fixedly connected to the chamfered corner of the surface of the suitcase body (1). The buffer mechanism (2) includes a buffer plate (21), several mounting slots (22), a foam board (23), a buffer spring (24), and a contact plate (25). The buffer plate (21) is fixedly connected to the inner walls of the rear and front sides of the suitcase body (1). The mounting slots (22) are opened on the inner side of the buffer plate (21). The foam board (23) is fixedly connected to the inner side of the mounting slot (22). The buffer spring (24) is fixedly connected to both sides of the surface of the foam board (23). The contact plate (25) is fixedly connected to the side of the buffer spring (24) away from the foam board (23).

2. A trolley case with a protective device according to claim 1, characterized in that: The protective mechanism (3) includes a protective shell (31), a connecting plate (32) and a reinforcing rod (33). The protective shell (31) is welded to the chamfer on the front surface of the trolley case body (1) and the chamfer on the rear surface of the trolley case body (1).

3. A trolley case with a protective device according to claim 2, characterized in that: The connecting plate (32) is welded between the left front protective shell (31) and the right front protective shell (31) and between the left rear protective shell (31) and the right rear protective shell (31).

4. A trolley case with a protective device according to claim 2, characterized in that: The reinforcing rods (33) are respectively welded between the left front top protective shell (31) and the left front bottom protective shell (31), between the right front top protective shell (31) and the right front bottom protective shell (31), between the left rear top protective shell (31) and the left rear bottom protective shell (31), and between the right rear top protective shell (31) and the right rear bottom protective shell (31).

5. A trolley case with a protective device according to claim 1, characterized in that: A buffer pad (4) is fixedly connected to the side of the contact plate (25) away from the buffer spring (24), and the buffer pad (4) is made of foam material.

6. A trolley case with a protective device according to claim 2, characterized in that: The protective shell (31) is fixedly connected to a protective pad (5), which is made of rubber material.

7. A trolley case with a protective device according to claim 1, characterized in that: The surface of the foam board (23) is provided with honeycomb holes, and the foam board (23) is made of cross-linked polyethylene material.

8. A trolley case with a protective device according to claim 2, characterized in that: The surface of the connecting plate (32) is fixedly connected with an anti-collision pad (6), which is made of silicone material.

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