A luggage case opening frame structure provided with trapezoidal insertion rods

Abstract

The utility model relates to the field of luggage, concretely relates to a luggage case mouth frame structure with trapezoidal plug-in rod, including two mouth frames and plug-in rod, mouth frame be equipped with box shell clamping mouth, main zipper clamping mouth and lining cloth zipper clamping mouth, two mouth frames symmetrically lay out, and the main zipper clamping mouth and lining cloth zipper clamping mouth are all the cavity of square cross section, and be equipped with the opening in one side of square cavity, the cross section of plug-in rod is trapezoidal, and four plug-in rods can be inserted into the zipper sleeve of embedding in main zipper clamping mouth and lining cloth zipper clamping mouth respectively. The cross section of plug-in rod is trapezoidal and the bottom edge of trapezoidal is adjacent to the opening of zipper clamping mouth, make the pressure contact area of plug-in rod and the opening of one side of main zipper clamping mouth and lining cloth zipper clamping mouth increase fully, and the gap between the two sides of plug-in rod and the side wall of main zipper clamping mouth and lining cloth zipper clamping mouth can also be left to reduce the resistance when plug-in rod is inserted, thereby improving the installation efficiency of zipper.

Description

Technical Field

[0001] This utility model relates to the field of luggage, specifically to a luggage opening frame structure with a trapezoidal insert rod. Background Technology

[0002] Suitcases are a common tool for carrying items when traveling, and the suitcase opening frame is an important component designed to improve the rigidity and ease of opening and closing. To facilitate opening and removing, cleaning, or replacing the lining, most suitcases have a main zipper and two lining zippers on the opening. The zippers are installed using different fastening methods, such as adhesive, riveting, and snap-fit. Due to the ease with which adhesive can fall off, the small contact points of riveting, the need for special tools, and the inability to achieve quick installation, snap-fit ​​has been gradually replaced by zippers. The applicant previously disclosed a zipper mounting structure for a suitcase in a utility model patent with authorization announcement number CN221729942U. This disclosed technology has a zipper connecting groove in the frame, and a fixing strip is inserted into the fixing sleeve and then into the zipper connecting groove to fix the zipper to the frame, which is used to solve the problem of quickly installing the zipper onto the frame. However, the fixing strip used by the applicant is a round tube. In actual application, it was found that the contact area between the fixing strip and the limiting protrusion at the opening of the zipper connecting groove is too small, which is not conducive to tightening and makes it easy to shake, thus affecting the strength of the connection between the zipper and the fixing sleeve. The applicant also changed the round fixing strip to a square insert rod and made the square insert rod large enough to increase the contact area. Although the larger square insert rod can fully fill the zipper connecting groove when inserted into the zipper fixing sleeve, and can reduce shaking after tightening, it can improve the strength of the connection between the zipper and the fixing sleeve. However, due to the small gaps and high resistance on both sides of the square insert rod, which is inserted into the zipper fixing sleeve and is sufficiently enlarged, it is difficult to push in during the insertion process into the zipper connecting groove, thus affecting the installation efficiency. Therefore, the applicant further improved the insert rod structure, hoping to both significantly increase the contact area between it and the limiting protrusion at the opening of the zipper connecting groove, and leave gaps between the two sides of the insert rod and the side walls of the zipper connecting groove to reduce the resistance during insertion, thereby improving the installation efficiency of the zipper. In view of this, this case arises. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model discloses a luggage frame structure with trapezoidal insert rods, including two frames and insert rods. The frames have a case shell clamping opening, a main zipper clamping opening, and a zipper clamping opening. The two frames are symmetrically arranged, and the openings of the case shell clamping openings are facing opposite directions. The main zipper clamping opening and the zipper clamping opening are both cavities with a square cross-section, and an opening communicating with the outside is provided at the center of one side of the square cavity. The insert rods have a trapezoidal cross-section and there are four insert rods. Two of them are inserted into two sleeves provided on the main zipper and placed in their respective main zipper clamping openings on the two frames. The other two are inserted into sleeves provided on the two zippers and placed in their respective zipper clamping openings on the two frames. This utility model discloses a luggage opening frame structure with a trapezoidal insert rod. The insert rod has a trapezoidal cross-section, with the base of the trapezoid adjacent to the openings of the corresponding main zipper clamp and zipper clamp. This significantly increases the contact area between the insert rod and the openings of the main zipper clamp and zipper clamp, while also allowing gaps between the two sides of the insert rod and the sidewalls of the main zipper clamp and zipper clamp to reduce resistance during insertion, thereby improving the installation efficiency of the zipper.

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

[0005] A luggage frame structure with trapezoidal insert rods is disclosed. This frame structure is used for sealing the opening of the luggage body and for installing the main zipper and liner zipper. The luggage body includes an upper shell and a lower shell. The structure comprises two frames and insert rods. The frames are formed by bending a one-piece clamping strip into a U-shape. The clamping strip has several clamping openings, including a main zipper clamping opening and a liner zipper clamping opening. The main zipper and liner zipper are each provided with a sleeve, and each sleeve can be inserted into the corresponding main zipper clamping opening and liner zipper clamping opening on the frame. The insert rods have a trapezoidal cross-section and consist of several pieces. These insert rods can be inserted into the sleeves on the main zipper in the main zipper clamping opening and the sleeves on the liner zipper in the liner zipper clamping opening of the frame, and can secure the main zipper sleeves and liner zipper sleeves to the frame.

[0006] Both the main zipper clamping opening and the zipper clamping opening are cavities with a square cross-section, and an opening communicating with the outside is provided at the center of one side of the square cavity.

[0007] The clamping strip used for bending the frame is a flexible, flat, rigid component with a cross-section that is multi-segmented and stacked. Several clamping openings include a box shell clamping opening. The box shell clamping opening is a flat groove with a locking protrusion at the opening. The opening direction of the box shell clamping opening is opposite to the opening direction of the main zipper clamping opening.

[0008] The two frames are symmetrically arranged between the upper and lower shells. The openings of the shell clamping openings of the two frames are arranged in opposite directions. The openings of the upper and lower shells can be respectively embedded into the shell clamping openings of the two frames and fixedly connected.

[0009] Both the main zipper and the zipper chain include chain teeth and two chain straps, with the two chain straps positioned on either side of the chain teeth. The main zipper is positioned between the main zipper clamping openings of the two frame pieces. The main zipper has two sleeves, which are positioned on one side of each of the two chain straps. The zipper chain consists of two pieces, each with one sleeve, which is positioned on one side of one chain strap. The sleeve is a flexible fabric sleeve, which can be sewn to the corresponding zipper chain strap or integrally formed.

[0010] The insert rod is a flexible plastic rod or aluminum rod. 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 two inner zippers and placed in their respective inner zipper clamping openings on the two opening frames.

[0011] The trapezoidal base of the insert rod is larger than the top of the trapezoid. The trapezoidal base of the insert rod placed in the main zipper clamping port and the zipper clamping port is adjacent to the opening of the corresponding main zipper clamping port and the opening of the zipper clamping port.

[0012] The aforementioned box shell clamping opening, main zipper clamping opening, and liner clamping opening, as well as the insert rod, the sleeve on the main zipper, and the sleeve on the liner, all extend along the length direction of the clamping strip used for bending the opening frame.

[0013] The main zipper is used for opening and closing the suitcase, and the lining zipper is used to secure the lining of the suitcase.

[0014] As can be seen from the above description, the advantages of the luggage frame structure with trapezoidal insert rods provided by this utility model are as follows: the frame is provided with a case clamping opening, a main zipper clamping opening, and a zipper clamping opening. The two frames are symmetrically arranged and the opening directions of the case clamping openings are opposite to each other. The cross-section of the insert rod is trapezoidal, and there are four insert rods. Two of them are inserted into the two sleeves provided on the main zipper and are placed in the corresponding main zipper clamping openings on the two frames. The other two are inserted into the sleeves provided on the two zippers and are placed in the corresponding zipper clamping openings on the two frames. By utilizing the trapezoidal cross-section of the insert rod, with the base of the trapezoid adjacent to the openings of the corresponding main zipper clamp and zipper clamp, the contact area between the insert rod and the openings of both clamps is significantly increased. Furthermore, gaps are maintained between the sides of the insert rod and the sidewalls of the clamps to reduce resistance during insertion, thereby improving zipper installation efficiency. This invention is rationally designed, simple in structure, low in cost, and easy to promote. Attached Figure Description

[0015] Figure 1 This is a general schematic diagram of a luggage compartment opening frame structure with a trapezoidal insert rod according to the present invention;

[0016] Figure 2 for Figure 1 A magnified diagram of AA in the image;

[0017] Figure 3 This is an enlarged schematic diagram of the cross-section of the frame;

[0018] Figure 4 This is an enlarged schematic diagram of the insert rod.

[0019] Figure label:

[0020] 1. Frame; 11. Box shell clamping opening; 12. Main zipper clamping opening; 13. Liner zipper clamping opening; 2. Insert rod; 3. Main zipper; 4. Liner zipper; 5. Box body; 51. Upper box shell; 52. Lower box shell. Detailed Implementation

[0021] The present invention will be further described below through specific embodiments.

[0022] like Figures 1 to 4As shown, the present invention provides a luggage opening frame structure with a trapezoidal insert rod. This opening frame structure is used for sealing the opening of the luggage body 5 and for installing the main zipper 3 and the zipper 4. The luggage body 5 includes an upper shell 51 and a lower shell 52. The frame structure includes two frames 1 and insert rods 2. The frame 1 is formed by bending a clamping strip into a U-shape. The clamping strip has several clamping openings, including a shell clamping opening 11, a main zipper clamping opening 12, and a zipper clamping opening 13. The main zipper 3 and the zipper 4 are respectively provided with sleeves, and each sleeve can be inserted into the corresponding main zipper clamping opening 12 and zipper clamping opening 13 on the frame 1. The insert rod 2 has a trapezoidal cross-section and consists of several insert rods. The insert rods 2 can be inserted into the sleeves on the main zipper 3 in the main zipper clamping opening 12 and the sleeves on the zipper 4 in the zipper clamping opening 13 of the frame 1, and can secure the sleeves of the main zipper 3 and the zipper 4 to the frame 1.

[0023] like Figures 1 to 3 As shown, the clamping strip used in this invention for bending the frame 1 is a flexible, flat, rigid component with a cross-section consisting of multiple overlapping segments. Both the main zipper clamping opening 12 and the zipper clamping opening 13 are square cavities with an opening at the center of one side of each cavity, communicating with the outside. The case shell clamping opening 11 is a flat groove with a protrusion at the opening; the opening direction of the case shell clamping opening 11 is opposite to the opening direction of the main zipper clamping opening 12.

[0024] like Figures 1 to 4As shown, the two-piece frame 1 of this utility model is symmetrically arranged between the upper shell 51 and the lower shell 52. The opening directions of the shell clamping openings 11 of the two-piece frame 1 are opposite to each other. The openings of the upper shell 51 and the lower shell 52 can be respectively embedded into the shell clamping openings 11 of the two-piece frame 1 and fixedly connected. The main zipper 3 and the zipper 4 both include chain teeth and two chain straps, with the two chain straps placed on both sides of the chain teeth. The main zipper 3 is placed between the main zipper clamping openings 12 of the two-piece frame 1. The main zipper 3 has two sleeves, which are placed on one side of each of the two chain straps of the main zipper 3. The zipper 4 is made of two pieces, each zipper 4 has a sleeve, and one sleeve is placed on one side of one chain strap of the zipper 4. The sleeve is a flexible fabric sleeve, which can be sewn to the corresponding zipper chain strap or integrally formed. The insert rod 2 is a flexible plastic or aluminum rod. There are four insert rods 2. Two of the four insert rods 2 are inserted into two sleeves on the main zipper 3 and placed in their respective main zipper clamping openings 12 on the two opening frames 1. The other two insert rods 2 are inserted into sleeves on two zipper pulls 4 and placed in their respective zipper clamping openings 13 on the two opening frames 1. The trapezoidal base of the insert rod 2 is larger than its top. The trapezoidal base of the insert rod 2 placed in the main zipper clamping opening 12 and the zipper clamping opening 13 is adjacent to the opening of their respective main zipper clamping opening 12 and zipper clamping opening 13. The aforementioned case clamping opening 11, main zipper clamping opening 12, and lining zipper clamping opening 13, as well as the sleeves on the insert rod 2, main zipper 3, and lining zipper 4, all extend along the length of the clamping strip used for bending the opening frame 1. The main zipper 3 is used for opening and closing the case body 5, and the lining zipper 4 is used to secure the lining of the suitcase.

[0025] When installing the luggage frame structure, first flatten the two sleeves of the main zipper 3 and one sleeve of each of the two zipper 4, and insert them into the openings of the main zipper clamping opening 12 and the zipper clamping opening 13 of the clamping strips used for the two unbent frames 1, respectively; then insert the four insert rods 2 into the sleeves of the main zipper 3 embedded in the main zipper clamping opening 12 and the sleeves of the zipper 4 embedded in the zipper clamping opening 13; then bend the two clamping strips into the frame 1, and insert the openings of the upper shell 51 and the lower shell 52 of the luggage body 5 into the corresponding shell clamping openings 11 of the frame 1 for locking; the two frames 1 can be hinged to each other on the corresponding frame edge so that the upper shell 51 can be flipped upwards to open.

[0026] This utility model discloses a luggage frame structure with trapezoidal insert rods. The frame 1 has a box shell clamping opening 11, a main zipper clamping opening 12, and a zipper clamping opening 13. The two frames 1 are symmetrically arranged, and the opening directions of the box shell clamping openings 11 are opposite to each other. The insert rod 2 has a trapezoidal cross-section and consists of four rods. Two rods are inserted into the two sleeves provided on the main zipper 3 and are placed in the corresponding main zipper clamping openings 12 on the two frames 1. The other two rods are inserted into the sleeves provided on the two zipper 4 and are placed in the corresponding zipper clamping openings 13 on the two frames 1. By utilizing the trapezoidal cross-section of the insertion rod 2, with the base of the trapezoid adjacent to the openings of the corresponding main zipper clamping opening 12 and the zipper clamping opening 13, the contact area between the insertion rod 2 and the openings of the main zipper clamping opening 12 and the zipper clamping opening 13 is sufficiently increased. Furthermore, gaps are left between the two sides of the insertion rod 2 and the side walls of the main zipper clamping opening 12 and the zipper clamping opening 13 to reduce the resistance during insertion, thereby improving the installation efficiency of the zipper.

[0027] 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 luggage case mouth frame structure provided with trapezoidal insertion rods, which is used for the edge of the mouth of a case body (5) of a luggage case and for the installation of a main zipper (3) and an inner zipper (4), said case body (5) comprising an upper case shell (51) and a lower case shell (52), characterized in that: The device includes two frames (1) and insert rods (2). The frames (1) are formed by bending a clamping strip that is molded in one piece. The clamping strip has several clamping openings, including a main zipper clamping opening (12) and a zipper clamping opening (13). The main zipper (3) and the zipper (4) are respectively provided with sleeves, and each sleeve can be inserted into the corresponding main zipper clamping opening (12) and zipper clamping opening (13) on the frames (1). The insert rods (2) have a trapezoidal cross-section and are made of several pieces. The insert rods (2) can be inserted into the sleeves on the main zipper (3) in the main zipper clamping opening (12) of the frames (1) and the sleeves on the zipper (4) in the zipper clamping opening (13) of the frames (1), and can secure the sleeves of the main zipper (3) and the zipper (4) to the frames (1).

2. The luggage opening frame structure with a trapezoidal insert rod according to claim 1, characterized in that: The main zipper clamping opening (12) and the zipper clamping opening (13) are both cavities with a square cross-section, and an opening communicating with the outside is provided at the center of one side of the square cavity.

3. A luggage opening frame structure with a trapezoidal insert rod according to claim 2, characterized in that: The clamping strip used for bending the frame (1) is a flexible flat rigid component with a cross-section in the form of multiple reciprocating stacked segments. Several clamping openings also include a box shell clamping opening (11), which is a flat groove. The opening direction of the box shell clamping opening (11) is opposite to the opening direction of the main zipper clamping opening (12).

4. A luggage opening frame structure with a trapezoidal insert rod according to claim 3, characterized in that: The two frames (1) are symmetrically arranged between the upper shell (51) and the lower shell (52). The opening directions of the shell clamping openings (11) of the two frames (1) are opposite to each other. The openings of the upper shell (51) and the lower shell (52) can be respectively embedded into the shell clamping openings (11) of the two frames (1) and fixedly connected.

5. A luggage opening frame structure with a trapezoidal insert rod according to claim 4, characterized in that: The main zipper (3) is placed between the main zipper clamping opening (12) of the two frame (1). The main zipper (3) has two sleeves, which are placed on one side of the two chain belts of the main zipper (3). The liner chain (4) is made of two pieces. Each liner chain (4) has a sleeve, and one sleeve is placed on one side of one chain belt of the liner chain (4).

6. A luggage opening frame structure with a trapezoidal insert rod according to claim 5, characterized in that: The insertion rods (2) are configured as four pieces. Two of the four insertion rods (2) are inserted into the two sleeves on the main zipper (3) and placed in the corresponding main zipper clamping openings (12) on the two opening frames (1). The other two insertion rods (2) are inserted into the sleeves on the two inner zippers (4) and placed in the corresponding inner zipper clamping openings (13) on the two opening frames (1).

7. A luggage opening frame structure with a trapezoidal insert rod according to claim 6, characterized in that: The trapezoidal base of the insert rod (2) placed in the main zipper clamping port (12) and the zipper clamping port (13) is adjacent to the opening of the corresponding main zipper clamping port (12) and the opening of the zipper clamping port (13).

Images