Expansion draw-bar box with stabilizing frame

Abstract

The utility model belongs to the field of luggage materials and manufacturing processes, and particularly relates to an expansion draw-bar box with a stable frame. The draw-bar box comprises a first box body, a second box body, a first zipper, a second zipper, a telescopic layer and a stable frame, the first zipper comprises a first chain belt connected with the first box body and a second chain belt connected with the second zipper, and the second zipper comprises a third chain belt connected with the first chain belt and a fourth chain belt connected with the second box body; the two sides of the telescopic layer are connected with the third zipper belt and the fourth zipper belt respectively, the telescopic layer shrinks when the third zipper belt is meshed with the fourth zipper belt, the telescopic layer expands when the third zipper belt is separated from the fourth zipper belt, and the stabilizing frame is connected with the first zipper or the second zipper. According to the draw-bar box, the first zipper and the second zipper are arranged to control opening and closing of the box body and folding and unfolding of the telescopic layer respectively, the stability of the box body is improved by arranging the stabilizing frame, so that the risk of damage is reduced, and the draw-bar box is simple and reasonable in structure and good in attractiveness.

Description

Technical Field

[0001] The utility model belongs to the field of luggage materials and manufacturing processes, and in particular relates to an expandable trolley case with a stable frame. Background Art

[0002] With the vigorous development of modern people's transportation tools, the internal space volume of existing luggage cases is fixed and cannot be expanded and adjusted according to the needs of use. In order to solve the above problems, the telescopic and expandable suitcase with application number 201821177915.X has an annular nylon expansion layer, a first zipper, a second zipper, a transverse partition and a third zipper between the upper box body and the lower box body, the top edge of the annular nylon expansion layer is fixedly connected to the open edge of the upper box body, the second zipper is installed between the bottom edge of the annular nylon expansion layer and the top edge of the transverse partition, the third zipper is installed between the bottom edge of the transverse partition and the open edge of the lower box body, the first zipper is installed between the open edge of the upper box body and the top edge of the transverse partition, and the annular nylon expansion layer and the second zipper are both located on the inner side of the first zipper. The above-mentioned suitcase requires three zippers, which are complicated to operate and have high manufacturing and production costs. The annular nylon expansion layer and the second zipper are both located on the inner side of the first zipper, and are contracted by the annular nylon expansion layer. The annular nylon expansion layer is a flexible material. When there are many items in the suitcase, there is a lack of an effective supporting structure inside, which can easily cause the suitcase to deform, resulting in the overall structural strength of the suitcase being low, and being easily damaged by squeezing and touching, and having imperfect functions. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the utility model provides an expandable trolley case with a stabilizing frame. To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0004] A capacity-expanding suitcase with a stabilizing frame comprises a first box body, a second box body, a first zipper, a second zipper, a telescopic layer and a stabilizing frame, wherein the first zipper comprises a first chain belt connected to the first box body and a second chain belt connected to the second zipper, the second zipper comprises a third chain belt connected to the first chain belt and a fourth chain belt connected to the second box body, both sides of the telescopic layer are respectively connected to the third chain belt and the fourth chain belt, the telescopic layer contracts when the third chain belt is engaged with the fourth chain belt, and expands when the third chain belt is separated from the fourth chain belt, and the stabilizing frame is connected to the first zipper or the second zipper.

[0005] Furthermore, it also includes a box connecting frame, the box connecting frame includes a box connecting groove, and the box connecting groove is engaged and connected with the edge of the box.

[0006] Furthermore, the box connecting frame includes a first box connecting frame and a second box connecting frame, wherein the first box connecting frame includes a box connecting groove engaged with an edge of the first box, and the second box connecting frame includes a box connecting groove engaged with an edge of the box.

[0007] Furthermore, one side of the first chain belt is connected to the first box, and the other side is provided with a first chain tooth, one side of the second chain belt is connected to the second zipper, and the other side is provided with a second chain tooth, and the first chain tooth is meshed with the second chain tooth.

[0008] Furthermore, one side of the third chain belt is connected to the second chain belt and the other side is provided with a third chain tooth, one side of the fourth chain belt is connected to the second box connecting frame and the other side is provided with a fourth chain tooth, and the third chain tooth is meshed with the fourth chain tooth.

[0009] Furthermore, the telescopic layer is an annular belt-shaped structure.

[0010] Furthermore, the stabilizing frame includes a hard frame body and a cover, and the cover is sleeved outside the hard frame body.

[0011] Furthermore, the hard frame is an annular frame made of metal or plastic hard material.

[0012] Furthermore, the stable frame color is arranged on the inner side of the first zipper or the second zipper.

[0013] Furthermore, the stabilizing frame is disposed between the first zipper and the second zipper.

[0014] The expandable trolley case with a stabilizing frame of the utility model is provided with a first zipper and a second zipper which respectively control the opening and closing of the case body and the retraction and extension of the telescopic layer. It has a simple structure, low production cost, and improved ease of use. The stabilizing frame is provided to improve the stability of the case body, thereby reducing the risk of damage and achieving protection of target items. It also has a simple and reasonable structure and good aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the expansion trolley case with a stabilizing frame when it is tightened;

[0016] Figure 2 This is a schematic diagram of the expansion of the expansion suitcase with a stabilizing frame;

[0017] Figure 3 This is a schematic diagram of an expansion suitcase with a stabilizing frame when it is opened;

[0018] Figure 4 It is a cross-sectional view of the first zipper and the second zipper when the expandable trolley case with a stabilizing frame is tightened;

[0019] Figure 5It is a cross-sectional view of the first zipper and the second zipper when the expandable trolley case with a stabilizing frame is expanded;

[0020] Figure 6 It is a schematic structural diagram of the first zipper and the second zipper of an expandable trolley case with a stabilizing frame. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific implementation methods.

[0022] Reference Figures 1 to 6 The expandable trolley case with a stabilizing frame shown in the figure comprises a first box body 1, a second box body 2, a first zipper 3, a second zipper 4, a telescopic layer 5 and a stabilizing frame 6;

[0023] The first box body 1 is hinged to the second box body 2 at one side by a hinge, the first box body 1 is provided with a first box body connection frame 11, the first box body connection frame 11 includes a box body connection groove 111 that is occluded and connected to the edge of the first box body 1, and the second box body 2 is provided with a second box body connection frame 21, the first box body connection frame 11 includes a box body connection groove 211 that is occluded and connected to the edge of the box body;

[0024] The first zipper 3 includes a first chain belt 31 and a second chain belt 32. One side of the first chain belt 31 is connected to the first box connecting frame 11, and the other side is provided with a first chain tooth 311. One side of the second chain belt 32 is connected to the second zipper 4, and the other side is provided with a second chain tooth 321. The first chain tooth 311 is meshed with the second chain tooth 321.

[0025] The second zipper 4 includes a third chain belt 41 and a fourth chain belt 42. One side of the third chain belt 41 is connected to the second chain belt 32, and the other side is provided with a third chain tooth 411. One side of the fourth chain belt 42 is connected to the second box connecting frame 21, and the other side is provided with a fourth chain tooth 421. The third chain tooth 411 is meshed with the fourth chain tooth 421.

[0026] The telescopic layer 5 is an annular belt-shaped structure. The telescopic layer 5 is preferably made of wear-resistant and highly elastic nylon cloth, silicone and other materials. Both sides of the telescopic layer 5 are sewn and connected with the third chain belt 41 and the fourth chain belt 42 respectively. When the third chain tooth 411 is engaged with the fourth chain tooth 421, the third chain belt 41 and the fourth chain belt 42 are closed, and the telescopic layer 5 is contracted. When the third chain tooth 411 and the fourth chain tooth 421 are pulled apart, the third chain belt 41 and the fourth chain belt 42 are separated, and the telescopic layer 5 is released to form an expansion space.

[0027] The stabilizing frame 6 includes a hard frame body 61 and a cover 62. The hard frame body 61 is an annular frame made of metal or plastic hard material. The cover 62 is sleeved outside the hard frame body 61. The cover 62 can be sewn to the second link 32, the third link 41, or between the second link 32 and the third link 41. Preferably, the cover 62 is sewn to the inner side of the second link 32, the third link 41, or between the second link 32 and the third link 41. The hard frame body 61 is not visible from the appearance, which is more beautiful.

[0028] Reference Figures 1 to 6 As shown, when the expandable trolley case with a stabilizing frame of the utility model is in use, the first box body 1 and the second box body 2 are hinged by a hinge, and the opening and closing of the first box body 1 and the second box body 2 are controlled by the first zipper 3. When the first chain tooth 311 of the first zipper 3 is engaged with the second chain tooth 321, the first box body 1 and the second box body 2 are closed, and the contraction and expansion of the trolley case are controlled by the second zipper 4. When the third chain tooth 411 is engaged with the fourth chain tooth 421, the third chain belt 41 and the fourth chain belt 42 are closed, and the telescopic layer 5 is contracted at this time; when the third chain tooth 411 and the fourth chain tooth 421 are pulled apart, the third chain belt 41 and the fourth chain belt 42 are separated, and the telescopic layer 5 is released to form an expansion space. Since the first zipper 3 and the second zipper 4 are both flexible structures, a stabilizing frame 6 is arranged between the first zipper 3 and the second zipper 4 to improve the stability of the case.

[0029] The expandable trolley case with a stabilizing frame of the utility model is provided with a first zipper 3 and a second zipper 4 which respectively control the opening and closing of the case body and the retraction and extension of the telescopic layer 5. It has a simple structure, low production cost, and improved ease of use. A stabilizing frame 6 is provided to improve the stability of the case body, thereby reducing the risk of damage, thereby achieving protection of the target items. It also has a simple and reasonable structure and good aesthetics.

[0030] The above are only some specific implementation methods of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. An expandable trolley case with a stabilizing frame, comprising a first box body and a second box body, characterized in that: It also includes a first zipper, a second zipper, a telescopic layer and a stabilizing frame, wherein the first zipper includes a first chain belt connected to the first box body, a second chain belt connected to the second zipper, the second zipper includes a third chain belt connected to the first chain belt, and a fourth chain belt connected to the second box body, both sides of the telescopic layer are respectively connected to the third chain belt and the fourth chain belt, when the third chain belt is engaged with the fourth chain belt, the telescopic layer contracts, and when the third chain belt is separated from the fourth chain belt, the telescopic layer expands, and the stabilizing frame is connected to the first zipper or the second zipper.

2. The expandable suitcase with a stabilizing frame according to claim 1, characterized in that: It also includes a box connecting frame, which includes a box connecting groove, and the box connecting groove is engaged and connected with the edge of the box.

3. The expandable suitcase with a stabilizing frame according to claim 2, characterized in that: The box connecting frame includes a first box connecting frame and a second box connecting frame. The first box connecting frame includes a box connecting groove that is engaged with the edge of the first box, and the second box connecting frame includes a box connecting groove that is engaged with the edge of the box.

4. The expandable suitcase with a stabilizing frame according to claim 1, characterized in that: One side of the first chain belt is connected to the first box, and the other side is provided with a first chain tooth; one side of the second chain belt is connected to the second zipper, and the other side is provided with a second chain tooth; the first chain tooth is meshed with the second chain tooth.

5. The expandable suitcase with a stabilizing frame according to claim 4, characterized in that: One side of the third chain belt is connected to the second chain belt, and the other side is provided with a third chain tooth. One side of the fourth chain belt is connected to the second box connecting frame, and the other side is provided with a fourth chain tooth. The third chain tooth is meshed with the fourth chain tooth.

6. The expandable suitcase with a stabilizing frame according to claim 1, characterized in that: The telescopic layer is an annular belt-shaped structure.

7. The expandable suitcase with a stabilizing frame according to claim 1, characterized in that: The stabilizing frame comprises a hard frame body and a cover, and the cover is sleeved outside the hard frame body.

8. The expandable suitcase with a stabilizing frame according to claim 1, characterized in that: The stable frame color is arranged on the inner side of the first zipper or the second zipper.

9. The expandable suitcase with a stabilizing frame according to claim 1, characterized in that: The stabilizing frame is disposed between the first zipper and the second zipper.

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