A luggage case with detachable lining and zipper
By setting two symmetrically arranged opening frames on the luggage compartment opening connector, the zipper clamping opening is perpendicular to the compartment shell clamping opening, solving the problem of inconvenient operation of the zipper in the existing technology and realizing a more efficient assembly and disassembly operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU JINLIN HIGH NEW ENVIRONMENTAL PROTECTION MATERIAL
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-09
AI Technical Summary
The installation and removal of the existing zipper in the suitcase is inconvenient and affects the efficiency of installation and removal.
Design a suitcase with easy-to-install and remove zipper clasps. By setting two symmetrically arranged opening frames on the suitcase opening connector, and making the opening direction of the zipper clasp clamping opening perpendicular to the opening direction of the suitcase shell clamping opening, the insertion space is increased and the ease of operation is improved.
This increases the space for installing and disassembling the ligature chain, improving installation and disassembly efficiency and overall work efficiency.
Smart Images

Figure CN224330517U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage, specifically to a suitcase with an easy-to-install and remove zipper. Background Technology
[0002] Suitcases are a common tool for carrying items when traveling. The lining, used for internal protection and decoration, is usually riveted or glued to the sides or opening of the suitcase. To facilitate installation and easy removal, cleaning, or replacement of the lining, the applicant disclosed a trolley suitcase with a detachable zipper in a utility model patent with authorization publication number CN221980240U. The patent describes a zipper with a strip-shaped connector on the edge of the lining, which is then engaged with an inner zipper connecting groove in the suitcase's connecting frame, allowing the lining to be detachably connected to the frame. The description states: "...the suitcase connecting frame includes a suitcase connecting groove and an inner zipper connecting groove..."; "...the inner zipper connecting groove includes an inner groove body..."; "...the opening direction of the inner groove body is consistent with that of the suitcase connecting groove...". The suitcase's body connecting slot and inner zipper connecting slot are used to install the suitcase body and lining respectively, with the lining installed inside the suitcase. While this solves the problem of lining removability, during mass production or replacement of damaged linings and zippers, it was found that when installing or removing the zipper connectors for the lining, the space is limited because the body connecting slot and inner zipper connecting slot are on the same side and have the same opening direction. The opening of the inner zipper connecting slot is also close to the suitcase shell wall, making the installation and removal of the zipper connectors inconvenient and affecting efficiency. Therefore, further improvements to the suitcase are necessary. How to improve the operating space for installing and removing the lining zipper by modifying the opening connecting frame, thereby improving the convenience and efficiency of installation and removal, 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 an easy-to-install and remove zipper, including an upper case shell, a lower case shell, an upper lining, a lower lining, and a case opening connector. The case opening connector has two symmetrically arranged opening frames, which are formed by bending a strip-shaped component. Each opening frame has a case shell clamping opening, a main zipper clamping opening, and a zipper clamping opening. The opening direction of the zipper clamping opening is perpendicular to the opening direction of the case shell clamping opening. Zippers on the edges of the upper and lower linings are respectively connected to the zipper clamping openings on the two opening frames. The present invention relates to a suitcase with an easy-to-install and remove lining zipper. By utilizing the fact that the opening direction of the lining zipper clamping port is perpendicular to the opening direction of the suitcase shell clamping port, and the opening direction of the lining zipper clamping ports of both frames faces the center of the suitcase, the opening of the lining zipper clamping port is moved away from the suitcase shell. This increases the installation space for the sleeve and insert rod of the zipper used for connecting the lining into the lining zipper clamping port, thereby improving the convenience and efficiency of lining zipper installation or removal.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A suitcase with an easy-to-install and remove zipper closure includes an upper shell, a lower shell, an upper lining, and a lower lining. The upper and lower linings are respectively placed inside the upper and lower shells. The suitcase is characterized by further including a lid opening connector. The lid opening connector has two opening frames symmetrically arranged between the upper and lower shells and connected to the openings of the upper and lower shells respectively. Each opening frame is formed by bending a one-piece strip into a U-shape. The strip has several clamping openings, including a shell clamping opening, a main zipper clamping opening, and a zipper clamping opening. The opening direction of the zipper clamping opening is perpendicular to the opening direction of the shell clamping opening. The opening directions of the zipper clamping openings of both opening frames face the center of the suitcase. Zippers located on the edges of the upper and lower linings are respectively connected to the corresponding zipper clamping openings on the two opening frames.
[0006] The strip-shaped component used for bending the frame is a flexible, flat, rigid component with a cross-section that is multi-segmented and stacked. The box shell clamping opening is a flat groove. The main zipper clamping opening and the zipper clamping opening are both square slots with openings. The opening direction of the main zipper clamping opening is opposite to the opening direction of the box shell clamping opening. The opening directions of the box shell clamping openings of the two frames are set in opposite directions.
[0007] The aforementioned box shell clamping opening, main zipper clamping opening, and zipper clamping opening all extend along the length direction of the strip-shaped member used for bending the frame.
[0008] The box opening connector also includes a main zipper and a liner zipper. Both the main zipper and the liner zipper have teeth and two chain straps, with the two chain straps positioned on either side of the teeth. The main zipper has two sleeves, each positioned on one side of one of the two chain straps. The liner zipper has one sleeve, with one sleeve positioned on one side of one of the chain straps. The sleeve is a flexible fabric sleeve, which can be sewn to or integrally formed with the corresponding zipper chain strap.
[0009] The main zipper is placed between the main zipper clamping openings of the two-piece frame, and the two sleeves on the main zipper are respectively placed in the main zipper clamping openings of the two-piece frame.
[0010] The lining chain is provided in two pieces. Each of the two lining chains has a sleeve that is placed in the lining chain clamping opening on the two opening frames respectively. The other chain strap of each of the two lining chains is sewn to the edge of the upper lining and the lower lining respectively.
[0011] The box opening connector also includes insert rods, which are flexible plastic or aluminum rods. There are four insert rods. Two of the four insert rods are inserted into two sleeves on the main zipper and placed in their respective main zipper clamping openings on the two opening frames. The other two insert rods are inserted into sleeves on the two inner zippers and placed in their respective inner zipper clamping openings on the two opening frames.
[0012] The insert rod and the sleeve on the main zipper, as well as the sleeve on the zipper, all extend along the length of the strip-shaped member used for bending the frame.
[0013] The openings of the upper and lower shells are respectively embedded into the shell clamping openings of the two opening frames and fixedly connected to the two opening frames respectively.
[0014] The two frames are hinged together on the corresponding frame edge. The two frames (1) are hinged together.
[0015] Furthermore, the aforementioned suitcase with an easy-to-install and remove zipper also includes latches, casters, handles, and telescopic rods connected to the upper and / or lower shells.
[0016] As described above, the advantages of this utility model for a suitcase with an easy-to-assemble and disassemble zipper are as follows: a connecting assembly is provided between the openings of the upper and lower shells. The two symmetrically arranged opening frames of the connecting assembly are bent from strip-shaped components with shell clamping openings, main zipper clamping openings, and zipper clamping openings. The opening directions of the zipper clamping openings and the shell clamping openings are perpendicular to each other. The opening directions of the shell clamping openings of the two opening frames are opposite to each other. The edges of the upper and lower lining fabrics... Each of the two zippers is connected to a zipper clamp on the two side panels. The zipper clamp openings are perpendicular to the openings of the suitcase shell clamping openings, and both openings face the center of the suitcase. This design keeps the zipper clamp openings away from the shell, increasing the installation space for the sleeves and inserts on the zippers used for connecting the lining fabric. This improves the convenience and efficiency of zipper installation and removal. This invention is reasonably designed, simple in structure, low in cost, and easy to promote. Attached Figure Description
[0017] Figure 1 This is a general schematic diagram of a suitcase with an easy-to-assemble and disassemble zipper, as described in this utility model.
[0018] Figure 2 This is an enlarged schematic diagram of the box opening connection assembly;
[0019] Figure 3 This is an enlarged schematic diagram of the cross-section of the frame.
[0020] Figure label:
[0021] 1 Upper case shell; 2 Lower case shell; 3 Upper lining; 4 Lower lining; 5 Case opening connector; 51 Case frame; 511 Case shell clamping opening; 512 Main zipper clamping opening; 513 Liner zipper clamping opening; 52 Main zipper; 53 Liner zipper; 54 Insert rod. Detailed Implementation
[0022] The present invention will be further described below through specific embodiments.
[0023] like Figures 1 to 3 As shown, this utility model discloses a suitcase with an easy-to-install and remove lining zipper, comprising an upper shell 1, a lower shell 2, an upper lining 3, a lower lining 4, and a suitcase opening connector 5. It also includes a latch, casters, a handle, and a telescopic rod connected to the upper shell 1 and / or the lower shell 2. The upper lining 3 and lower lining 4 are respectively placed inside the upper shell 1 and the lower shell 2. The suitcase opening connector 5 has two opening frames 51, symmetrically arranged between the upper shell 1 and the lower shell 2 and respectively connected to the openings of the upper shell 1 and the lower shell 2. Hinges are provided on corresponding sections of the two opening frames 51, and the two opening frames 51 are hinged together to allow the upper shell 1 to be flipped upwards and opened (not shown in the figure). The frame 51 is formed by bending a single-piece strip into a U-shape. The strip has several clamping openings, including a case shell clamping opening 511, a main zipper clamping opening 512, and a zipper clamping opening 513. The opening direction of the zipper clamping opening 513 is perpendicular to the opening direction of the case shell clamping opening 511. The opening directions of the zipper clamping openings 513 of both frames 51 face the center of the suitcase. The strip used to bend the frame 51 is a flexible, flat, rigid component with a cross-section consisting of multiple overlapping segments. The case shell clamping opening 511 is a flat groove. The main zipper clamping opening 512 and the zipper clamping opening 513 are both open square slots. The opening direction of the main zipper clamping opening 512 is opposite to the opening direction of the case shell clamping opening 511. The opening directions of the case shell clamping openings 511 of both frames 51 are opposite to each other. The box shell clamping opening 511, the main zipper clamping opening 512, and the lining zipper clamping opening 513 all extend along the length of the strip-shaped member used to bend the frame 51. Zippers located on the edges of the upper lining 3 and the lower lining 4 are respectively connected to the corresponding lining zipper clamping openings 513 on the two-piece frame 51. The openings of the upper box shell 1 and the lower box shell 2 are respectively embedded into the box shell clamping openings 511 of the two-piece frame 51 and are respectively fixedly connected to the two-piece frame 51.
[0024] like Figures 1 to 3As shown, the box opening connector 5 of this utility model further includes a main zipper 52, a zipper 53, and an insert rod 54. Both the main zipper 52 and the zipper 53 include chain teeth and two chain straps, with the two chain straps positioned on either side of the chain teeth. The main zipper 52 has two sleeves, each positioned on one side of one of the two chain straps. The zipper 53 has one sleeve, with one sleeve positioned on one side of one chain strap. The sleeve is a flexible fabric sleeve, which can be sewn to or integrally formed with the corresponding zipper chain strap. The main zipper 52 is positioned between the main zipper clamping openings 512 of the two-piece opening frame 51, and the two sleeves on the main zipper 52 are respectively positioned within the main zipper clamping openings 512 of the two-piece opening frame 51. The zipper chain 53 consists of two pieces. Each zipper chain 53 has a sleeve that is respectively placed in the zipper chain clamping opening 513 on the two frame pieces 51. The other chain strap of each zipper chain 53 is sewn to the edges of the upper lining fabric 3 and the lower lining fabric 4, respectively. The insert rod 54 is a flexible plastic or aluminum rod. There are four insert rods 54. Two of the four insert rods 54 are inserted into two sleeves on the main zipper 52 and placed in their respective main zipper clamping openings 512 on the two frame pieces 51. The other two insert rods 54 are inserted into sleeves on the two zipper chains 53 and placed in their respective zipper chain clamping openings 513 on the two frame pieces 51. The insert rods 54, the sleeves on the main zipper 52, and the sleeves on the zipper chain 53 all extend along the length of the strip-shaped member used to bend the frame piece 51.
[0025] This utility model describes a suitcase with an easy-to-install and remove zipper. A connecting assembly 5 is provided between the openings of the upper and lower shells 1 and 2. The connecting assembly 5 consists of two symmetrically arranged frame pieces 51, each bent from a strip-shaped component with a shell clamping opening 511, a main zipper clamping opening 512, and a zipper clamping opening 513. The opening directions of the zipper clamping opening 513 and the shell clamping opening 511 are perpendicular to each other. The opening directions of the shell clamping openings 511 of the two frame pieces 51 are opposite to each other. The upper lining 3 and lower lining 4 each have... The zippers are respectively connected to the zipper clamping openings 513 on the two-piece frame 51. The opening direction of the zipper clamping opening 513 is perpendicular to that of the box shell clamping opening 511. The opening direction of the zipper clamping openings 513 on the two-piece frame 51 is facing the middle of the suitcase, so that the opening of the zipper clamping opening 513 is far away from the box shell. This increases the installation space of the sleeve and insert rod 54 on the zipper used for connecting the lining into the zipper clamping opening 513, thereby improving the convenience and efficiency of zipper installation or removal.
[0026] 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 an easy-to-install and remove lining zipper, comprising an upper case (1), a lower case (2), an upper lining (3), and a lower lining (4), wherein the upper lining (3) and the lower lining (4) are respectively placed inside the upper case (1) and the lower case (2), characterized in that: It also includes a box opening connector (5), which has two opening frames (51). The two opening frames (51) are symmetrically arranged between the upper box shell (1) and the lower box shell (2) and are respectively connected to the openings of the upper box shell (1) and the lower box shell (2). The opening frame (51) is formed by bending an integrally formed strip member. The strip member has several clamping openings, including a box shell clamping opening (511) and a main zipper. The clamping opening (512) and the zipper clamping opening (513) are perpendicular to the opening direction of the case clamping opening (511). The opening direction of the zipper clamping opening (513) of the two-piece frame (51) faces the middle of the suitcase. The zippers set on the edges of the upper lining (3) and the lower lining (4) are respectively connected to the corresponding zipper clamping opening (513) on the two-piece frame (51).
2. A suitcase with an easy-to-install and remove zipper as described in claim 1, characterized in that: The strip-shaped component used for bending the frame (51) is a flexible flat strip-shaped rigid component with a cross-section in the form of multiple reciprocating stacked segments. The opening direction of the main zipper clamping opening (512) is opposite to the opening direction of the box shell clamping opening (511), and the opening directions of the box shell clamping openings (511) of the two frames (51) are set in opposite directions.
3. A suitcase with an easy-to-install and remove zipper as described in claim 2, characterized in that: The box opening connector (5) also includes a main zipper (52) and a zipper chain (53). The main zipper (52) has two sleeves, which are respectively placed on one side of the two chain straps of the main zipper (52). The zipper chain (53) has one sleeve, which is placed on one side of one chain strap of the zipper chain (53). The sleeve can be sewn to the corresponding chain strap or integrally formed.
4. A suitcase with an easy-to-install and remove zipper as described in claim 3, characterized in that: The main zipper (52) is placed between the main zipper clamping opening (512) of the two-piece frame (51), and the two sleeves on the main zipper (52) are respectively placed in the main zipper clamping opening (512) on the two-piece frame (51).
5. A suitcase with an easy-to-install and remove zipper as described in claim 4, characterized in that: The lining chain (53) is provided in two pieces. Each of the two lining chains (53) has a sleeve that is respectively placed in the lining chain clamping opening (513) on the two opening frames (51). The other chain strap of each of the two lining chains (53) is sewn to the edge of the upper lining fabric (3) and the lower lining fabric (4).
6. A suitcase with an easy-to-install and remove zipper as described in claim 5, characterized in that: The box opening connector (5) also includes insert rods (54), which are four in number. Two of the four insert rods (54) are inserted into the two sleeves on the main zipper (52) and placed in the corresponding main zipper clamping openings (512) on the two opening frames (51). The other two insert rods (54) are inserted into the sleeves on the two inner zippers (53) and placed in the corresponding inner zipper clamping openings (513) on the two opening frames (51).
7. A suitcase with an easy-to-install and remove zipper as described in claim 6, characterized in that: The openings of the upper shell (1) and the lower shell (2) are respectively embedded into the shell clamping opening (511) of the two-piece frame (51) and fixedly connected to the two-piece frame (51).