WO2021135204A1

WO2021135204A1 - Double-layer suitcase having detachable liner bag

Info

Publication number: WO2021135204A1
Application number: PCT/CN2020/105677
Authority: WO
Inventors: 杨林峰
Original assignee: 杨林峰
Priority date: 2019-12-30
Filing date: 2020-07-30
Publication date: 2021-07-08
Also published as: CN211379930U

Abstract

The present invention relates to a double-layer suitcase having a detachable liner bag, comprising a shell (1) and a liner bag (2); the shell (1) is provided with a pull rod (14) and sliding wheels (15), the shell (1) is provided with an inner cavity opening (17), and the liner bag (2) is provided inside the shell (1) by means of the inner cavity opening (17); the sliding wheels (15) are provided on a bottom face (13) of the shell (1), and the bottom face (13) of the shell (1) has an integrated structure, such that the sliding wheels (15) are all provided on the same module, and the sliding wheels are all located on the same horizontal plane when they touch the ground. The shell of the present invention has an integrated overall structure, ensuring the overall force bearing balance and structure balance of the suitcase when the sliding wheels touch the ground and move thereon; the liner bag can be used alone as a backpack, and the liner bag is made of TPU, PVC or EVA materials, increasing the uses of a suitcase, and facilitating the arrangement, cleaning and replacement of the liner bag.

Description

Double-layer suitcase with detachable inner bag

Technical field

The utility model relates to the technical field of suitcases, more specifically, to a double-layer suitcase with a detachable inner liner bag.

Background technique

The shells of the existing hard suitcases are usually connected together in the form of zippers between the front and rear boxes, and the pulleys are respectively arranged at the bottoms of the two boxes. Since the connection between the two boxes is made of soft material, during the sliding process of the suitcase, the box at the back end pulls the box at the front, so that there may be a relative displacement between the two boxes, so that the The pulleys are not on the same plane, and the pulleys arranged on the two boxes are unbalanced in force, which causes the overall structure of the sliding process to be unstable. At the same time, because the two boxes are connected together in the form of a zipper, during the opening and closing process of the two boxes, the items in the box are easy to fall out.

In addition, the suitcase is usually connected with a hard-to-remove lining inside the shell to place items. When the inner lining is damaged and dirty, it is difficult to disassemble for replacement or cleaning, which is very inconvenient.

The above shortcomings need to be improved.

Summary of the invention

In order to overcome the shortcomings of the existing technology, the utility model provides a double-layer suitcase with a detachable inner bag.

The technical scheme of the utility model is as follows:

A double-layer suitcase with a detachable inner liner bag, comprising an outer shell and an inner liner bag, the outer shell is provided with a pull rod and a pulley, and is characterized in that:

The outer shell is provided with an inner cavity opening, and the inner bladder bag is arranged inside the outer shell through the inner cavity opening;

The pulleys are arranged on the bottom surface of the casing, and the bottom surface of the casing is an integrated structure, so that the pulleys are all arranged on the same module, and the pulleys are all on the same horizontal surface when they touch the ground.

The above-mentioned double-layer suitcase with a detachable inner liner bag is made of one of PVC, TPU and EVA, and can also be made of waterproof fabric.

The above-mentioned double-layer suitcase with a detachable inner liner bag includes a main body and a plurality of components, and the main body and the components are connected by hot pressing or stitching.

Further, the main body includes a TPU layer or a PVC layer arranged at both ends, and an EVA layer sandwiched in between.

The above-mentioned double-layer suitcase with a detachable inner liner bag, wherein the outer shell is blow molded, injection molded, blister molded, or a plurality of parts assembled into an integrated structure, and the liner bag is blow molded Forming, multiple parts hot press forming or multiple parts stitched and connected to form.

In the above-mentioned double-layer travel case with a detachable inner liner bag, a lock buckle is provided on the back of the inner liner bag, and the lock buckle is connected with the strap.

Preferably, the inner bladder bag is provided with an elastic support mechanism.

In the above-mentioned double-layer suitcase with a detachable inner liner bag, the outer shell is an integrally formed structure, or an integral structure formed by connecting a plurality of parts without being divided and unopenable.

In the above-mentioned double-layer suitcase with a removable inner bag, the outer shell is a hard outer shell.

In the above-mentioned double-layer suitcase with a detachable inner bag, the outer shell is made of a hard material, and the hard material includes metal, PP, PC, or ABS.

In the above-mentioned double-layer suitcase with a detachable inner liner bag, the outer shell is an integrally formed structure, or an integral structure formed by connecting a plurality of parts without division and incapable of opening and closing.

Preferably, a loop buckle is provided on the shell, and the strap passes through the loop buckle and is connected to form a loop.

Further, the buckle is buckled and connected to the strap.

Further, the strap surrounds the outer shell, and fixes the inner bladder bag inside the outer shell.

In the above-mentioned double-layer travel case with a detachable inner liner bag, the inner liner bag is adhesively connected to the outer shell.

In the above-mentioned double-layer suitcase with a detachable inner liner bag, the inner liner bag is buckled and connected with the outer shell.

In the above-mentioned double-layer travel case with a detachable inner liner bag, the inner liner bag and the outer shell are sucked and connected by a suction cup.

In the above-mentioned double-layer travel case with a detachable inner liner bag, the inner liner bag is connected with the outer shell clip.

According to the present utility model of the above solution, its beneficial effects are as follows:

1. The shell is an integrated whole structure, so that the pulleys are arranged on the same stable module at the bottom, so all the pulleys are on the same level when touching the ground, so as to ensure the overall force balance and structural balance of the suitcase;

2. The hard shell is an integrated single-sided opening structure. It is not a connection between two boxes. It does not need to use a zipper or a middle frame, and does not need to install a lining. It is convenient for the shell to be integrated or mechanically spliced to reduce The manufacturing process reduces labor costs, which is conducive to the automated production of suitcases;

3. The inner bag is detachably connected to the outer shell, and the inner bag can be used as a backpack alone, which increases the use and usability of the suitcase;

4. The material of the inner liner bag adopts one of TPU, PVC and EVA, which is conducive to the one-time molding and production of the inner liner bag, and improves the production efficiency of the inner liner bag. At the same time, it is not easy to get dirty, easy to clean, and has a long service life;

5. The opening of the suitcase is on the side of the box body, and the inner bag has a certain degree of wrapping when placed in the inner cavity of the outer shell. When the suitcase is placed flat, the contents will not fall out when the inner bag is opened to take and place items.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present utility model more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the utility model. For some of the new embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

Figure 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a schematic diagram of the structure of the housing;

Figure 3 is a schematic diagram of the front structure of the inner bladder bag;

Figure 4 is a schematic diagram of the back structure of the inner bladder bag.

Among them, the reference signs in the figure:

1. Shell; 11. Front end; 12. Rear end; 13. Bottom surface; 14. Pull rod; 15. Pulley; 16. Ring buckle; 17. Inner cavity opening;

2. Inner bag; 21. Main body; 22. Lock; 221. Retaining ring; 222. Buckle;

3. Straps.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present utility model, and are not used to limit the present utility model.

It should be noted that when a component is called "fixed" or "set" or "connected" to another component, it can be directly or indirectly located on the other component. The directions or positions indicated by the terms "upper", "lower", "front", "rear", "horizontal", "bottom", "inner", "outer" etc. are based on the directions or positions shown in the drawings, only It is for the convenience of description and cannot be understood as a limitation of the technical solution. The meaning of "plurality" means two or more than two, unless otherwise specifically defined. The meaning of "several" is one or more than one, unless otherwise specifically defined.

A double-layer suitcase with a detachable inner liner bag, as shown in Figure 1, includes a housing 1 and an inner liner bag 2. The housing 1 is provided with a pull rod 14 and a pulley 15, and the front of the housing 1 is provided with an inner cavity opening 17 and The inner cavity is connected, the inner bladder 2 is arranged in the housing 1 through the inner cavity opening 17 and is detachably connected with the housing 1. The pulley 15 is arranged on the bottom surface 13 of the housing 1. 15 are all set on the same integral module.

The housing 1 is made of hard metal or plastic, and has a bladder-shaped inner cavity. The front of the housing 1 is provided with an inner cavity opening 17 for placing articles inside the housing 1. The housing 1 can be formed into an integrated structure through blow molding, injection molding, suction molding, or multiple components assembled into an integrated structure. Metal molding processes and various plasticizing processes are acceptable. The housing 1 is either integrally formed at one time or assembled by splicing multiple frames to form an indivisible and inseparable integral structure. As shown in FIG. 2, the housing 1 includes a hexahedral rear end 12 with a hollow side and a ring-shaped front end 11, and the housing 1 is formed by splicing the two. Regardless of whether the housing 1 is integrally formed or spliced and assembled, its main body is an integrated structure without division and without opening and closing, and its bottom surface 13 is an integrated integral module structure to ensure that the pulley 15 provided on the bottom surface 13 is set on the On the same integral module, when the suitcase is moving, each pulley 15 does not produce relative displacement, ensuring the overall balance and stability, the pulley 15 is uniformly stressed, and the service life is prolonged. At the same time, it can also save extra force due to unbalanced forces. The side surface of one or both ends of the shell 1 is provided with a buckle 16, the strap 3 passes through the buckle 16 and is fixed on the outside of the shell 1, and the strap 3 goes around the upper part of the inner cavity opening 17, that is, the outer middle part of the shell 1, and the inner shell The bag 2 is blocked inside the outer shell 1 to prevent the inner bladder bag 2 from falling out of the inner cavity of the outer shell 1.

As shown in Fig. 3, the inner bag 2 is made of one of PVC, TPU and EVA, and it can also be a waterproof fabric. The whole is soft and easily deformable, and it is convenient to insert into the outer shell 1 through the inner cavity opening 17. Structurally, the inner bag 2 includes a main body 21 and various component parts. The main body 21 and each component part can be connected by hot pressing or stitching, and the whole inner bag 2 can also be formed by blow molding. Among them, the individual components of the above-mentioned several kinds of materials are spliced to form the inner bag 2, and can also be used as multi-layer composite components. The components of the inner bag 2 include a TPU layer provided at both ends and an EVA layer sandwiched between them, which are laminated or composited. In addition, an opening of the inner bag 2 is provided at the front panel to place items, such as a ring-shaped zipper that is not connected to the end. Since the middle of the inner bag 2 is an EVA interlayer, the EVA material can be adjusted to obtain greater hardness, which is helpful for the shaping of the inner bag and has a certain elasticity. Therefore, when the inner bag 2 is put into the outer shell 1, it can be By bending the main body 21 or components into the inner cavity of the outer shell 1, after being inserted, the EVA layer has a greater hardness and will be stretched and restored to its original shape, so that the outside of the inner bladder 2 can resist. Hold the edge of the inner cavity of the outer shell 1 so that the inner bladder 2 is firmly placed in the inner cavity of the outer shell 1. Preferably, the inner bladder 2 is also provided with an elastic support mechanism. After the inner bladder 2 is inserted into the outer shell 1, the elastic support mechanism is manually adjusted so that the elastic support mechanism expands against the inner wall of the outer shell 1 to support the inner bladder. 2 role.

Because the surface material of the inner bag 2 is TPU, TPU is an elastomer rubber with good elasticity, plasticity and abrasion resistance. It can be repeatedly filled into the inner cavity of the outer shell 1 and can also adapt to the travel process. Various environments, long service life. In addition, TPU material is oil-resistant, water-resistant, mold-resistant, flame-retardant, aging-resistant, and is not easy to be stained. It has air-tightness, load-bearing capacity, impact resistance and shock absorption performance. Very good protection, it can be directly washed with water if it is dirty, with high recovery rate, sanitation and environmental protection.

Since the inner bladder 2 is detachable and replaceable, the user can replace the inner bladder 2 with different colors and different appearance patterns as needed to suit different usage scenarios.

As shown in Figure 4, the back panel of the inner bag 2 is provided with a lock 22. The lock 22 includes a fixing ring 221 arranged at the center of the upper part of the back panel of the inner bag 2 and a buckle 222 arranged at both ends of the lower part. Triangular distribution. The strap 3 passes through the fixing ring 221 in the middle, and is respectively buckled and connected with the buckles 222 at both ends. In this way, the inner bag 2 forms a backpack, which can be used alone. When the inner bladder 2 is inserted into the outer shell 1, the back strap 3 is removed from the inner bladder 2, and passes through the buckles 16 of the outer shell 1, and surrounds the outer shell 1 and is fastened end to end to block the inner bladder 2 from the outer shell 1. Fell out of the cavity. Wherein, the number and positions of the fixing ring 221 and the buckle 222 are not limited in any way, and several fixing rings 221 and the buckle 222 can be provided according to requirements, and can be arranged at any position of the inner bag 2.

Among them, one end of the buckle 222 is a male connector, and the other end is a female connector; the two ends of the strap 3 are a male connector and a female connector, so that the two ends of the strap 3 can be buckled and connected to the buckle 222 respectively. At the same time, the strap 3 When surrounding the shell, it can be buckled and connected end to end to form a loop, and the length of the strap 3 can also be adjusted for better fixation.

In the first embodiment, both the outside of the inner bag 2 and the inner cavity of the outer shell 1 are provided with velcro, and the inner bag 2 and the outer shell 1 are connected by velcro; in the second embodiment, the inner cavity of the outer shell 1 is provided With a buckle, the inner bladder 2 and the outer shell 1 are connected by a buckle 222 and a buckle; in the third embodiment, the outer part of the inner bladder 2 and the inner cavity of the outer shell 1 are both provided with suction cups, and the inner bladder 2 It is connected with the outer shell 1 by sucking and closing; in the fourth embodiment, the inner bladder 2 is provided with a loop or a hook ring, and the inner wall of the outer shell 1 is provided with a hook or clip, and the inner bladder 2 is connected to the outer shell 1. Snap connection. In the above embodiments, the inner bladder 2 and the outer shell 1 are connected in a detachable connection, so that the inner bladder 2 is fixed in the inner cavity of the outer shell 1. Therefore, in addition to the above-mentioned implementation, you can also choose any simple The detachable connection, such as the above-mentioned buckle connection, paste connection, suction connection, clip connection, etc., can also be selected by button buckle connection, external rivet riveting, clip connection and so on.

When in use, you can first remove the back strap 3 of the inner bag 2 and insert the inner bag 2 into the inner cavity of the outer shell 1. After connecting by the above connection method, put the article into the inner bag 2, and then put the back strap on The loop buckle 16 surrounds the shell 1, so that the two ends of the strap 3 are buckled and connected; you can also take out the inner bag 2 separately, connect the strap 3 and the lock 22, and open the inner bag 2 as a separate backpack. .

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in this utility model. Within the scope of protection of utility models.

Claims

A double-layer suitcase with a detachable inner liner bag, comprising an outer shell and an inner liner bag, the outer shell is provided with a pull rod and a pulley, and is characterized in that:

The outer shell is provided with an inner cavity opening, and the inner bladder bag is arranged inside the outer shell through the inner cavity opening;

The pulleys are arranged on the bottom surface of the casing, and the bottom surface of the casing is an integrated structure, so that the pulleys are all arranged on the same module, and the pulleys are all on the same horizontal surface when they touch the ground.
The double-layer travel case with a detachable inner liner bag according to claim 1, wherein the material of the inner liner bag is one of PVC, TPU and EVA.
The double-layer suitcase with a detachable liner bag according to claim 1, wherein the liner bag includes a main body and a plurality of components, and the main body and the components are heated or pressed Suture the connection.
The double-layer suitcase with a detachable inner liner bag according to claim 3, wherein the main body includes a TPU layer or a PVC layer provided at both ends, and an EVA layer sandwiched in between.
The double-layer suitcase with a detachable inner liner bag according to claim 1, wherein the outer shell is blow molding, injection molding, blister molding, or multiple parts assembled into an integrated structure Molding, the inner bladder bag is blow molding, multiple parts hot press molding, or multiple parts stitched and connected to form.
The double-layer travel case with a detachable inner liner bag according to claim 1, wherein a lock buckle is provided on the back of the inner liner bag, and the lock buckle is connected with the strap.
The double-layer suitcase with a detachable inner liner bag according to claim 1, wherein the outer shell is provided with a loop buckle, and the back strap passes through the loop buckle and is fastened end to end to form a loop.
8. The double-layer suitcase with a detachable inner liner bag according to claim 7, wherein the strap surrounds the outer shell and fixes the inner liner bag inside the outer shell.
The double-layer suitcase with a detachable liner bag according to claim 1, wherein the outer shell is made of a hard material, and the hard material includes metal, PP, PC, or ABS. The shell is an integrally formed structure, or an integral structure formed by connecting a plurality of parts without division and incapable of opening and closing.
The double-layer travel case with a detachable inner liner bag according to claim 1, wherein the inner liner bag is provided with an elastic support mechanism.