A glue-free connected luggage

Abstract

The utility model relates to the field of luggage, and specifically relates to a luggage case connected without glue, which comprises an upper case shell, a lower case shell, a mouth frame, a main zipper, an inner cloth zipper, fixing pieces and an inner cloth, the mouth frame is curved from a clamping strip, and the cross section of the clamping strip is reciprocatingly folded. The first clamping opening and the second clamping opening formed by the reciprocatingly folded clamping strip clamp the upper case shell or the lower case shell and the main zipper respectively, a plurality of fixing pieces in the inner groove on the inner layer sheet of the clamping strip are sequentially transversely threaded through the plate wall of the inner layer sheet, the chain belt of the main zipper and the plate wall of the middle layer sheet and are connected to the mouth wall of the upper case shell or the lower case shell to be locked, so that the upper case shell, the lower case shell, the main zipper and the mouth frame are firmly connected without glue bonding; and the two ends of the fixing pieces are covered by the outer layer sheet of the clamping strip and the inner cloth connected to the inner cloth zipper, so that the connection strength of the upper case shell, the lower case shell, the main zipper and the mouth frame can be improved, and the environmental protection and the aesthetic appearance of the luggage case can be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of luggage, specifically to a suitcase with glue-free connection. Background Technology

[0002] Suitcases are a common tool for carrying belongings when traveling. To enhance the rigidity of the upper and lower shells and facilitate opening and closing, most current suitcases have opening frames on the top and bottom shells, with main zippers and lining zippers installed on these frames. Currently, the connection between the opening frames and the upper and lower shells, as well as the connections to the main zippers and lining zippers, is mostly achieved through gluing or sewing. However, the extensive use of glue is environmentally unfriendly, and exposed stitching affects aesthetics. Therefore, it is necessary to design the opening frames as a multi-layered, folding structure and improve the fixing methods to overcome the environmental problems of glue bonding and the aesthetic issues of sewing, thereby increasing the connection strength of the shell and zippers and enhancing both environmental friendliness and aesthetics. This is the problem to be solved in this case. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, this utility model discloses a suitcase with glue-free connection, including an upper shell, a lower shell, a frame, a main zipper, a lining zipper, a fastener and a lining. The fastener is a screw, and the frame is formed by bending a clamping strip, the cross-section of which is folded back and forth. This invention utilizes a first and second clamping opening formed by a reciprocating folding clamping strip of a bent frame to clamp the upper or lower case shell and the main zipper, respectively. Several fixing components, located in grooves on the inner layer of the clamping strip, pass laterally through the inner layer wall, the main zipper strap, and the middle layer wall, and are locked to the opening wall of the upper or lower case shell. This securely connects the upper and lower case shells, the main zipper, and the frame without the need for adhesive. Furthermore, the ends of the fixing components are covered by the outer layer of the clamping strip and the lining fabric connected to the lining zipper, thereby increasing the connection strength between the upper and lower case shells, the main zipper, and the frame, and enhancing the environmental friendliness and aesthetics of the suitcase.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A suitcase with glue-free connection includes an upper shell, a lower shell, a main zipper, a lining zipper, and a lining. The main zipper and the lining zipper have toothed chain straps on both sides. Both the upper and lower shells are open cavities with their openings facing each other. The suitcase is characterized by further including a frame and a fixing component. The frame consists of two pieces, symmetrically stacked and hinged together. The two frames are positioned between the upper and lower shells and connected to the openings of both shells. The frame is formed by bending a one-piece clamping strip. The clamping strip is a strip-shaped component with a reciprocating folded cross-section and has an outer layer, a middle layer, and an inner layer connected sequentially. Between the outer and middle layers... A first clamping opening is formed, a second clamping opening is formed between the middle layer and the inner layer, and an inner groove and a third clamping opening are provided on one side of the inner layer. The openings of the upper and lower shells are respectively embedded into the first clamping openings of the two-piece frame and clamped by the first clamping opening. The two sides of the main zipper are respectively embedded into the second clamping openings of the two-piece frame and clamped by the second clamping opening. There are several fasteners, which are distributed in the inner grooves on the inner layer of the two-piece frame. Each of the fasteners passes laterally through the inner layer, the main zipper, and the middle layer in sequence and is connected to the opening wall of the upper or lower shell. The fasteners can fix the upper or lower shell and the main zipper to the frame.

[0006] Both the first clamping port and the second clamping port are flat opening slots. The opening directions of the first clamping port and the second clamping port are opposite. A square cavity is provided at the end of the second clamping port.

[0007] The openings of the second clamping openings of the two frames face each other, and the main zipper is placed between the two second clamping openings.

[0008] The opening direction of the third clamping port is perpendicular to the opening direction of the second clamping port, and a square cavity is provided at one end of the third clamping port.

[0009] The first clamping opening, the second clamping opening, the third clamping opening, and the inner groove all extend along the length direction of the clamping strip.

[0010] The main zipper has flexible sleeves and limiting rods that can be inserted into the sleeves on both sides of the chain belt. The sleeves and limiting rods on both sides of the main zipper can be placed in the square cavity at the second clamping end of the clamping strip of the two-piece frame.

[0011] The liger chain consists of two pieces. Each of the two liger chains has a flexible sleeve and a limiting rod that can be inserted into the sleeve on one side of the chain belt. The sleeve and limiting rod of each of the two liger chains can be placed in the square cavity at the third clamping end of the clamping strip of the two frames.

[0012] The lining fabric includes an upper lining fabric and a lower lining fabric, which are respectively sewn to the chain straps on the other side of the two lining fabrics.

[0013] Both the sleeve and the limiting rod extend along the length of the clamping strip. The limiting rod is a plastic or aluminum rod with a square cross-section and is flexible. The sleeve is a flexible fabric sleeve that can be sewn to or integrally formed with the corresponding zipper tape.

[0014] The fastener is a screw.

[0015] A hinge is provided on the same side between the two frames, and the upper and lower shells connected to the frames can be rotated around the hinge.

[0016] Furthermore, the suitcase with glue-free connection also includes latches, casters, handles, and telescopic rods connected to the upper and / or lower shells.

[0017] As described above, the advantages of this utility model for a glue-free connected suitcase are as follows: the cross-section of the clamping strip used to prepare the opening frame is designed to be a reciprocating folded shape including an outer layer, a middle layer, and an inner layer. An inner groove is provided on one side of the inner layer. The first and second clamping openings formed by the reciprocating folded clamping strip of the bent opening frame are used to clamp the upper or lower shell and the main zipper, respectively. Several fixing pieces set in the inner groove of the clamping strip pass laterally through the inner layer plate wall, the main zipper chain, and the middle layer plate wall and are connected to the opening wall of the upper or lower shell for locking. This makes the upper shell, lower shell, main zipper, and opening frame firmly fixed without the need for glue. Moreover, the two ends of the fixing pieces are covered by the outer layer of the clamping strip and the lining connected to the lining chain, thereby improving the connection strength between the upper shell, lower shell, main zipper, and opening frame, and enhancing the environmental friendliness and aesthetics of the suitcase. This utility model has a reasonable design, simple structure, low cost, and is easy to promote. Attached Figure Description

[0018] Figure 1 This is a general schematic diagram of a glue-free connected suitcase according to the present invention;

[0019] Figure 2 for Figure 1 A magnified diagram of AA in the image;

[0020] Figure 3 An enlarged cross-sectional diagram of the clamping strip used for bending the frame.

[0021] Figure label:

[0022] 1 Upper case shell; 2 Lower case shell; 3 Opening frame; 31 Outer layer sheet; 32 Middle layer sheet; 33 Inner layer sheet; 301 First clamping opening; 302 Second clamping opening; 303 Third clamping opening; 304 Inner groove; 4 Main zipper; 5 Liner zipper; 6 Fastener; 7 Lining fabric. Detailed Implementation

[0023] The present invention will be further described below through specific embodiments.

[0024] like Figures 1 to 3 As shown, the present invention discloses a glue-free connected suitcase, comprising an upper shell 1, a lower shell 2, a frame 3, a main zipper 4, a lining zipper 5, a fastener 6, and a lining 7. The main zipper 4 and the lining zipper 5 have toothed chain straps on both sides. Both the upper shell 1 and the lower shell 2 are open cavities, with their openings facing each other. Two frames 3 are symmetrically stacked and hinged together, positioned between the upper shell 1 and the lower shell 2 and connected to the openings of both shells. Each frame 3 is formed by bending a one-piece clamping strip. The clamping strip is a strip-shaped component with a reciprocating folded cross-section, and has an outer layer 31, a middle layer 32, and an inner layer 33 connected sequentially. A first clamping opening 301 is formed between the outer layer 31 and the middle layer 32. A second clamping opening 302 is formed between the upper shell 1 and the inner layer 33. An inner groove 304 and a third clamping opening 303 are provided on one side of the inner layer 33. The openings of the upper shell 1 and the lower shell 2 are respectively embedded into the first clamping opening 301 of the two-piece frame 3 and clamped by the first clamping opening 301. The two sides of the main zipper 4 are respectively embedded into the second clamping opening 302 of the two-piece frame 3 and clamped by the second clamping opening 302. The fixing member 6 is a screw. Several fixing members 6 are provided. Several fixing members 6 are distributed in the inner groove 304 on the inner layer 33 of the two-piece frame 3. Each of the several fixing members 6 passes horizontally through the plate wall of the inner layer 33, the chain of the main zipper 4 and the plate wall of the middle layer 32 and is connected to the opening wall of the upper shell 1 or the lower shell 2. Several fixing members 6 can fix the upper shell 1 or the lower shell 2 and the main zipper 4 to the frame 3.

[0025] like Figures 1 to 3As shown, the first clamping opening 301 and the second clamping opening 302 of this utility model are both flat opening grooves. The opening directions of the first clamping opening 301 and the second clamping opening 302 are opposite, and a square cavity is provided at the end of the second clamping opening 302. The opening directions of the second clamping openings 302 of the two frame pieces 3 are facing each other, and the main zipper 4 is placed between the two second clamping openings 302. The opening direction of the third clamping opening 303 is perpendicular to the opening direction of the second clamping opening 302, and a square cavity is provided at one end of the third clamping opening 303. The first clamping opening 301, the second clamping opening 302, the third clamping opening 303, and the inner groove 304 all extend along the length direction of the clamping strip.

[0026] like Figures 1 to 3 As shown, the main zipper 4 of this invention has flexible sleeves and limiting rods that can be inserted into the sleeves on both sides of the chain strap. The sleeves and limiting rods on both sides of the main zipper 4 can be placed in the square cavity at the end of the second clamping opening 302 of the clamping strip of the two-piece frame 3. The lining zipper 5 consists of two pieces, and each of the two lining zippers 5 has a flexible sleeve and a limiting rod that can be inserted into the sleeve on one side of the chain strap. The sleeves and limiting rods of the two lining zippers 5 can be placed in the square cavity at the end of the third clamping opening 303 of the clamping strip of the two-piece frame 3. The lining 7 includes an upper lining and a lower lining, which are sewn to the chain strap on the other side of each of the two lining zippers 5. The sleeves and limiting rods extend along the length of the clamping strip. The limiting rod is a plastic rod or aluminum rod with a square cross-section and is flexible. The sleeve is a flexible fabric sleeve that can be sewn to or integrally formed with the corresponding zipper chain strap.

[0027] like Figures 1 to 3 As shown, the two frame frames 3 of the suitcase described in this utility model have a hinge on the same side, allowing the upper shell 1 and lower shell 2 connected to the frame frames 3 to rotate around the hinge. The suitcase in this embodiment also includes a latch, casters, a handle, and a telescopic rod connected to the upper shell and / or lower shell.

[0028] Before installing the opening frame 3 of this suitcase, first insert the sleeves with limit rods on the main zipper 4 and the zipper 5 into the square cavities at the ends of the corresponding second clamping openings 302 or third clamping openings 303 on the opening frame 3; then bend the clamping strips into square opening frames 3 and weld their joints; then embed the openings of the upper shell 1 and the lower shell 2 into the first clamping openings 301 of the corresponding opening frames 3; then screw several fasteners 6 horizontally into the inner grooves 304 on the inner layer 33 of the clamping strips, passing through the plate wall of the inner layer 33 and the main zipper. The chain 4 and the middle layer plate 32 are screwed onto the opening wall of the upper box shell 1 or the lower box shell 2 for locking, so that the upper box shell 1, the lower box shell 2, the main zipper 4 and the opening frame 3 are firmly fixed; then a section of the frame edge between the two opening frames 3 is hinged with a hinge; the other side of the chain 5 of each lining is sewn to the lining in the upper box shell 1 or the lower box shell 2 of the suitcase in advance, and the chain 5 of the lining 5 sewn to the lining 7 and the corresponding chain 5 of the lining 5 connected to the opening frame 3 are fixed to the corresponding opening frame 3 by the meshing of the chain teeth.

[0029] This invention utilizes a first clamping opening 301 and a second clamping opening 302 formed by a reciprocating folding clamping strip of a bent frame 3 to clamp the upper case 1 or lower case 2 and the main zipper 4 respectively. Several fixing pieces 6, located in the inner groove 304 on the inner layer 33 of the clamping strip, pass laterally through the inner layer 33, the main zipper 4, and the middle layer 32, and are connected to the opening wall of the upper case 1 or lower case 2 for locking. This ensures that the upper case 1, lower case 2, main zipper 4, and opening frame 3 are firmly fixed without the need for glue. Furthermore, the two ends of the fixing pieces 6 are covered by the outer layer 31 of the clamping strip and the lining 7 connected to the lining zipper 5, thereby improving the connection strength between the upper case 1, lower case 2, main zipper 4, and opening frame 3, and enhancing the environmental friendliness and aesthetics of the suitcase.

[0030] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A suitcase with glue-free connection, comprising an upper shell (1), a lower shell (2), a main zipper (4), a lining zipper (5), and a lining (7), wherein the upper shell (1) and the lower shell (2) are both open cavities, and the openings of the upper shell (1) and the lower shell (2) are arranged facing each other, characterized in that: It also includes a frame (3) and a fastener (6). The frame (3) consists of two pieces, which are stacked symmetrically on top of each other and hinged together. The two frames (3) are placed between the upper shell (1) and the lower shell (2) and are respectively connected to the openings of the upper shell (1) and the lower shell (2). The frame (3) is formed by bending an integrally formed clamping strip. The clamping strip is a strip-shaped component with a reciprocating folded cross-section. It has an outer layer (31), a middle layer (32) and an inner layer (33) connected in sequence. A first clamping opening (301) is formed between the outer layer (31) and the middle layer (32), and a second clamping opening (302) is formed between the middle layer (32) and the inner layer (33). An inner groove (30) is provided on one side of the inner layer (33). 4) and the third clamping opening (303), the openings of the upper box shell (1) and the lower box shell (2) are respectively embedded into the first clamping opening (301) of the two-piece frame (3), the two side chains of the main zipper (4) are respectively embedded into the second clamping opening (302) of the two-piece frame (3), the fixing member (6) is a plurality of pieces, the plurality of fixing members (6) are distributed in the inner groove (304) on the inner layer piece (33) of the two-piece frame (3), and the plurality of fixing members (6) pass through the inner layer piece (33), the main zipper (4) and the middle layer piece (32) in a horizontal sequence and are connected to the upper box shell (1) or the lower box shell (2), the plurality of fixing members (6) can fix the upper box shell (1) or the lower box shell (2) and the main zipper (4) to the frame (3).

2. The suitcase with glue-free connection according to claim 1, characterized in that: The first clamping port (301) and the second clamping port (302) are both flat opening slots. The opening directions of the first clamping port (301) and the second clamping port (302) are opposite. A square cavity is provided at the end of the second clamping port (302).

3. The suitcase with glue-free connection according to claim 2, characterized in that: The opening directions of the second clamping openings (302) of the two frames (3) are opposite, and the main zipper (4) is placed between the two second clamping openings (302).

4. A suitcase with a glue-free connection according to claim 3, characterized in that: The opening direction of the third clamping port (303) is perpendicular to the opening direction of the second clamping port (302), and a square cavity is provided at one end of the third clamping port (303).

5. A suitcase with a glue-free connection according to claim 4, characterized in that: The first clamping opening (301), the second clamping opening (302), the third clamping opening (303), and the inner groove (304) all extend along the length direction of the clamping strip.

6. A suitcase with a glue-free connection according to claim 5, characterized in that: The main zipper (4) has flexible sleeves and limiting rods that can be inserted into the sleeves on both sides of the chain belt. The sleeves and limiting rods on both sides of the main zipper (4) can be placed in the square cavity at the end of the second clamping port (302) of the clamping strip of the two-piece frame (3).

7. A suitcase with a glue-free connection according to claim 6, characterized in that: The liger chain (5) consists of two pieces. Each of the two liger chains (5) has a flexible sleeve and a limiting rod that can be inserted into the sleeve on one side of the chain belt. The sleeve and limiting rod of each of the two liger chains (5) can be placed in the square cavity at the end of the third clamping port (303) of the clamping strip of the two mouth frame (3).

8. A suitcase with a glue-free connection according to claim 7, characterized in that: The lining (7) includes an upper lining and a lower lining, which are sewn to the chain straps on the other side of the two linings (5).

9. A suitcase with a glue-free connection according to claim 1, characterized in that: The fastener (6) is a screw.

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