A luggage case structure

Abstract

This invention relates to the field of luggage technology, and particularly to a luggage body structure, including an upper body and a lower body. The upper body has an integrally formed upper frame, and the lower body has an integrally formed lower frame. An interlocking structure is provided between the upper and lower frames. An upper lining is provided inside the upper body, and a lower lining is provided inside the lower body. A first annular clamping groove for clamping the upper lining is provided on the upper frame, and a second annular clamping groove for clamping the lower lining is provided on the lower frame. The openings of the first and second annular clamping grooves are parallel to the end face where the interlocking structure is provided. The beneficial effects of this invention are: simplified production process and improved production efficiency.

Description

Technical Field

[0001] This invention relates to the field of luggage technology, and more specifically to a luggage body structure. Background Technology

[0002] A rolling suitcase is an indispensable piece of equipment for modern travel. Patent application CN202123405030.5 discloses a luggage lining fixing device, including a lower fixing frame, a lower lining frame, an upper fixing frame, an upper lining frame, and a locking insert. The lower lining frame and the upper lining frame can be fixed to the lower fixing frame and the upper fixing frame respectively by the locking insert. The lower fixing frame and the upper fixing frame can be installed on the lower body and the upper body of the luggage respectively. The luggage lining is connected to the lining frame, and the lining frame is placed on the protrusion of the fixing frame. By inserting and pulling the locking insert into the locking hole, the fixing frame can be easily locked and unlocked to the lining frame.

[0003] The above structure has the following two defects: 1. The fixing frame and the box body are separate structures. The fixing frame needs to be fixed by riveting, gluing or other means. This structure leads to an increase in production steps and a decrease in production efficiency; 2. In order to make the inner linings removable from the box body, an upper lining frame, a lower lining frame and locking inserts are added, which increases the number of luggage parts, increases production costs and assembly steps. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a suitcase body structure that simplifies the production process and improves production efficiency, addressing the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a suitcase body structure, comprising an upper body, a lower body, an upper lining, and a lower lining, wherein the upper lining is arranged inside the upper body and the lower lining is arranged inside the lower body, characterized in that: an upper frame is integrally formed on the upper body and a lower frame is integrally formed on the lower body; an interlocking structure is provided between the upper frame and the lower frame; a first annular clamping groove for clamping the upper lining is provided on the upper frame; a second annular clamping groove for clamping the lower lining is provided on the lower frame; zippers are sewn along the edges of both the upper and lower linings; notches for the zippers to pass through are provided on both the first and second annular clamping grooves; and the openings of the first and second annular clamping grooves are parallel to the end face where the interlocking structure is provided.

[0006] The present invention, possessing the above-mentioned features, features an integral molding between the frame and the box body, eliminating splicing gaps, improving overall strength, extending service life, and eliminating the splicing process between the frame and the box body, as well as the additional frame production process, simplifying the production process and improving production efficiency; by setting an annular clamping groove in the frame to directly clamp the lining fabric, assembly is convenient, auxiliary parts are eliminated, and production costs are reduced; the clamping groove on the frame provides full-circumference restraint for the lining fabric, ensuring that the lining fabric is laid flat inside the box body.

[0007] A further feature of the present invention is that the zipper includes chain teeth, a first chain belt, and a second chain belt. The first chain belt and the second chain belt are respectively disposed on both sides of the chain teeth. The first chain belt connects the upper lining fabric to the chain teeth or the lower lining fabric to the chain teeth. An anti-slip part is sewn on the second chain belt. The second chain belt is placed in a first annular clamping groove and a second annular clamping groove. The cross-sectional area of ​​the anti-slip part is larger than the opening of the first annular clamping groove and the second annular clamping groove.

[0008] The present invention, which has the above features, has the following features: the lining fabric is detachably connected to the case body via a zipper, making it easy to assemble and disassemble; and by setting an anti-detachment part, it ensures that the second chain strap will not fall off in the clamping groove.

[0009] A further feature of the present invention is that both the first annular clamping groove and the second annular clamping groove are square grooves with an opening on one side.

[0010] The present invention, which has the above-mentioned features, has a regular square groove structure, which is easy to process.

[0011] A further feature of the present invention is that the fitting structure includes an annular groove on the upper frame and an annular protrusion on the lower frame. The annular groove is located on the side of the upper frame facing the lower frame, and the annular protrusion is located on the side of the lower frame facing the upper frame. When the upper and lower boxes are closed, the annular protrusion is placed in the annular groove.

[0012] The present invention, which has the above-mentioned features, has the following characteristics: when the upper and lower boxes are closed, the annular protrusion is embedded in the annular groove to form a circumferential sealing fit, which effectively prevents external dust, liquids, etc. from entering the box and improves the sealing and protection performance of the suitcase; at the same time, the cooperation between the protrusion and the groove plays a positioning and guiding role when closing, so that the closing position of the upper and lower boxes is accurate and not easy to be misaligned.

[0013] A further feature of the present invention is that the fitting structure includes an annular protrusion on the upper frame and an annular groove on the lower frame. The annular protrusion is located on the side of the upper frame facing the lower frame, and the annular groove is located on the side of the lower frame facing the upper frame. When the upper and lower boxes are closed, the annular protrusion is placed in the annular groove.

[0014] The present invention, which has the above-mentioned features, provides another arrangement of the interlocking structure.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present invention.

[0018] Figure 3 for Figure 2 A magnified view of part A in the image.

[0019] Figure 4 This is a cross-sectional view of the parts after being separated according to Embodiment 1 of the present invention.

[0020] Figure 5 for Figure 4 A magnified view of part B in the image.

[0021] Figure 6 This is a schematic diagram of the upper box structure in Embodiment 2 of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the box body in Embodiment 2 of the present invention. Detailed Implementation

[0023] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0024] like Figure 1-7 The suitcase structure shown includes an upper body 1 and a lower body 2. The upper body 1 has an integrally formed upper frame 11, and the lower body 2 has an integrally formed lower frame 21. The upper frame 11 and the lower frame 21 are provided with an interlocking structure. The upper body 1 is provided with an upper lining 3, and the lower body 2 is provided with a lower lining 4. The upper frame 11 is provided with a first annular clamping groove 111 for clamping the upper lining 3, and the lower frame 21 is provided with a second annular clamping groove 211 for clamping the lower lining 4. The opening orientation of the first annular clamping groove 111 and the second annular clamping groove 211 is parallel to the end face where the interlocking structure is provided. The first annular clamping groove 111 and the second annular clamping groove 211 are both square grooves with an opening on one side.

[0025] Zippers 5 are sewn along the edges of both the upper lining fabric 3 and the lower lining fabric 4. The zipper 5 includes chain teeth (not shown in the figure), a first chain strap (not shown in the figure), and a second chain strap. The first chain strap and the second chain strap are located on both sides of the chain teeth. The first chain strap connects the upper lining fabric 3 to the chain teeth and the first chain strap connects the lower lining fabric 4 to the chain teeth. An anti-slip part 51 is sewn onto the second chain strap. The second chain strap is placed in the first annular clamping groove 111 and the second annular clamping groove 211. The cross-sectional area of ​​the anti-slip part 51 is larger than the opening of the first annular clamping groove 111 and the second annular clamping groove 211. Both the first annular clamping groove 111 and the second annular clamping groove 211 are provided with notches 6 for the zipper 5 to pass through.

[0026] There are two implementation methods for the interlocking structure: Example 1: The fitting structure includes an annular groove 112 on the upper frame 11 and an annular protrusion 212 on the lower frame 21. The annular groove 112 is located on the side of the upper frame 11 facing the lower frame 21, and the annular protrusion 212 is located on the side of the lower frame 21 facing the upper frame 11. When the upper box 1 and the lower box 2 are closed, the annular protrusion 212 is placed in the annular groove 112.

[0027] Example 2: The fitting structure includes an annular protrusion 212 on the upper frame 11 and an annular groove 112 on the lower frame 21. The annular protrusion 212 is located on the side of the upper frame 11 facing the lower frame 21, and the annular groove 112 is located on the side of the lower frame 21 facing the upper frame 11. When the upper box 1 and the lower box 2 are closed, the annular protrusion 212 is placed in the annular groove 112.

[0028] The hinges used for hinge connection and the locks used for locking in this box structure are conventional technologies in this field and will not be described in detail.

[0029] During production, the steps for installing the lining inside the box are as follows: insert the zipper with the anti-slip part into the notch of the annular clamping groove, pull the end of the zipper to fill the annular clamping groove with the entire zipper, that is, the lining is wrapped around the inside of the box to complete the installation of the lining.

[0030] When removing the lining, consumers only need to pull open the zipper teeth to remove the lining; there is no need to remove the entire zipper from the box.

Claims

1. A suitcase body structure, comprising an upper body, a lower body, an upper lining, and a lower lining, wherein the upper lining is disposed inside the upper body and the lower lining is disposed inside the lower body, characterized in that: The upper box body has an integrally formed upper frame, and the lower box body has an integrally formed lower frame. The upper frame and the lower frame are provided with an interlocking structure. The upper frame is provided with a first annular clamping groove for clamping the upper lining fabric, and the lower frame is provided with a second annular clamping groove for clamping the lower lining fabric. Zippers are sewn along the edges of both the upper and lower lining fabrics. Both the first and second annular clamping grooves are provided with notches for the zippers to pass through. The openings of the first and second annular clamping grooves are parallel to the end face where the interlocking structure is provided.

2. The suitcase body structure according to claim 1, characterized in that: The zipper includes chain teeth, a first chain belt, and a second chain belt. The first chain belt and the second chain belt are respectively located on both sides of the chain teeth. The first chain belt connects the upper lining fabric to the chain teeth or the lower lining fabric to the chain teeth. The second chain belt is sewn with an anti-slip part. The second chain belt is placed in a first annular clamping groove and a second annular clamping groove. The cross-sectional area of ​​the anti-slip part is larger than the opening of the first annular clamping groove and the second annular clamping groove.

3. The suitcase body structure according to claim 1, characterized in that: Both the first annular clamping groove and the second annular clamping groove are square grooves with an opening on one side.

4. The suitcase body structure according to any one of claims 1-3, characterized in that: The fitting structure includes an annular groove on the upper frame and an annular protrusion on the lower frame. The annular groove is located on the side of the upper frame facing the lower frame, and the annular protrusion is located on the side of the lower frame facing the upper frame. When the upper and lower boxes are closed, the annular protrusion is placed in the annular groove.

5. The suitcase body structure according to any one of claims 1-3, characterized in that: The fitting structure includes an annular protrusion on the upper frame and an annular groove on the lower frame. The annular protrusion is located on the side of the upper frame facing the lower frame, and the annular groove is located on the side of the lower frame facing the upper frame. When the upper and lower boxes are closed, the annular protrusion is placed in the annular groove.

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