A connection structure for a luggage opening

Abstract

The utility model relates to the field of luggage, concretely relates to a connecting structure of the suitcase mouth, including mouth frame and insert piece, mouth frame is equipped with two and is connected between upper box body and lower box body, and the mouth frame is bent by clamping strip, and the clamping strip is equipped with three clamping mouths, the cross section of second clamping mouth and third clamping mouth is square and one side is equipped with opening, insert piece includes spacing rod and sleeve, and it can be inserted into second clamping mouth or third clamping mouth. The utility model utilizes the square insert piece to insert into the square clamping mouth of mouth frame, can increase the pressure contact area to reduce the shaking, and then reduces the risk of affecting the strength of the connecting place of zipper and insert piece, utilizes the multiple clamping mouths to be convenient for the quick installation of the zipper of the suitcase mouth opening and closing and the lining cloth zipper, makes the connecting structure of the suitcase mouth have rigidity, and multiple zippers can be quickly installed on the mouth frame, and the pressure contact area of the insert piece and mouth frame of connecting zipper can be increased, and the convenience and service life of the installation of the suitcase can be improved.

Description

Technical Field

[0001] This utility model relates to the field of luggage, specifically to a connection structure for the opening of a suitcase. Background Technology

[0002] Suitcases are a common tool for carrying belongings when traveling. To facilitate the opening and closing of the upper and lower compartments, most suitcases currently use zippers or buckles at the opening for connection. Because zippers are more flexible and provide a better seal than buckles, suitcases using zippers are more widely used. However, considering that zippers are not easy to attach to a rigid frame, conventional suitcases typically sew the zipper directly to the opening of the upper and lower compartments. While this solves the zipper installation problem, it is not convenient for quick installation, and the lack of a rigid frame affects the suitcase's rigidity and pressure resistance. Therefore, there is a desire to improve the connection structure of the suitcase opening, creating a rigid frame that allows for quick and easy installation of the zipper without sewing. Although the applicant previously disclosed a zipper mounting structure for a suitcase in a utility model patent with authorization announcement number CN221729942U, this disclosed technology features a zipper connecting groove in the frame. A fixing strip is inserted into the fixing sleeve and then into the zipper connecting groove to fix the zipper to the frame, solving the problem of quickly installing the zipper onto the frame. However, the fixing strip used by the applicant is a circular 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 wobble, thus affecting the strength of the connection between the zipper and the fixing sleeve. In addition, the disclosed technology only has one zipper connecting groove, which is not convenient for installing the lining of the suitcase. Therefore, the applicant further improved the structure to make the connection structure of the suitcase opening both rigid and allowing multiple zippers to be quickly installed onto the opening frame. It also increases the contact area between the fixing component connecting the zipper and the opening frame to reduce the risk of affecting the strength of the connection between the zipper and the fixing component. In view of this, this case arises. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model discloses a connection structure for a suitcase opening, including an opening frame and inserts. The opening frame consists of two symmetrically arranged pieces connected between the upper and lower compartments. The opening frame is formed by bending a rigid clamping strip, which has three clamping openings. The first clamping opening is a flat groove, and the second and third clamping openings have square cross-sections with an opening on one side. The inserts include a square limiting rod and a sleeve fitted onto it. The four inserts are respectively inserted into the second and third clamping openings of the two opening frames to fix the corresponding outer and inner zipper straps. This invention improves the connection structure of the luggage opening by using a square insert that is inserted into the square clamping opening of the opening frame to increase the contact area between the two and reduce shaking, thereby reducing the risk of affecting the strength of the connection between the zipper and the insert. By setting multiple clamping openings, it is possible to quickly install the zippers for opening and closing the luggage and the zippers for the lining fabric. This makes the connection structure of the luggage opening both rigid and allows multiple zippers to be quickly installed on the opening frame. It also increases the contact area between the insert connecting the zipper and the opening frame, thereby improving the convenience of luggage installation and its service life.

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

[0005] A connecting structure for a suitcase opening, used for sealing the opening edges of the upper and lower compartments of a suitcase and securing the outer and inner zippers, is characterized by comprising opening frames and inserts. The opening frames are two pieces symmetrically arranged between the upper and lower compartments and connected to the openings of the upper and lower compartments respectively. Each opening frame is formed by bending a one-piece clamping strip, which has a second clamping opening and a third clamping opening, both of which have a square cross-section. The cavity has an opening on one side that communicates with the outside, and straight shoulders are formed on the left and right sides of the opening. The insert includes a square limiting rod and a sleeve fitted onto the limiting rod. The insert can be inserted into the cavity of the second clamping port or the third clamping port, and one side of the insert can abut against the shoulders on the left and right sides of the cavity opening. There are four inserts, which are respectively inserted into the second clamping port and the third clamping port of the two-piece frame to fix the corresponding outer zipper and inner zipper straps.

[0006] The clamping strip is a flexible, flat, rigid component with a cross-section that is multi-segmented and stacked. The clamping strip is also provided with a first clamping opening, which is a flat groove. The opening of the first clamping opening is in the same direction as the opening of the third clamping opening but opposite to the opening direction of the second clamping opening. The first clamping opening is used to allow the openings of the corresponding upper and lower boxes to be inserted, so that the opening frame is fixed on the upper and lower boxes.

[0007] The first clamping opening, the second clamping opening, and the third clamping opening all extend along the length of the clamping strip.

[0008] The limiting rod is a plastic or aluminum rod with a square cross-section and is flexible. The sleeve is a flexible cloth sleeve that can be sewn to or integrally formed with the corresponding zipper tape.

[0009] The limiting rod and sleeve extend along the length of the clamping bar.

[0010] The openings of the two second clamping openings of the frame described in the two pieces face each other, and the outer zipper is placed between the two second clamping openings, with the two toothed chain straps of the outer zipper respectively connected to the sleeves inside the two second clamping openings.

[0011] The two third clamping openings of the frame described above are facing opposite directions and are used to clamp the two inner zippers. The two inner zippers are respectively placed outside the two third clamping openings. One toothed chain of each inner zipper is connected to a sleeve inside one of the third clamping openings, and the other toothed chain of each inner zipper is connected to the lining of the suitcase.

[0012] As described above, the advantages of the luggage opening connection structure provided by this utility model are as follows: Three clamping openings are provided on the rigid clamping strip used to prepare the opening frame. The second and third clamping openings, as well as the limiting rods of the inserts inserted into the corresponding clamping openings, are all square. Using square inserts inserted into the square clamping openings of the opening frame increases the contact area between the two, reducing wobbling and thus lowering the risk of affecting the strength of the connection between the zipper and the insert. The multiple clamping openings facilitate the quick installation of zippers for opening and closing the luggage and the zippers for the lining fabric. This makes the luggage opening connection structure both rigid and allows for the quick installation of multiple zippers onto the opening frame. It also increases the contact area between the inserts connecting the zippers and the opening frame, thereby improving the convenience of luggage installation and its service life. This utility model has a reasonable design, simple structure, low cost, and is easy to promote. Attached Figure Description

[0013] Figure 1 This is a general schematic diagram of the connection structure of a suitcase opening according to the present invention;

[0014] Figure 2 for Figure 1 A magnified diagram of AA in the image;

[0015] Figure 3 This is an enlarged schematic diagram of the cross-section of the frame;

[0016] Figure 4 This is an enlarged cross-sectional view of the sleeve after it is connected to the outer or inner zipper.

[0017] Figure label:

[0018] 1. Frame; 11. First clamping opening; 12. Second clamping opening; 13. Third clamping opening; 2. Insert; 21. Limiting rod; 22. Sleeve; 3. Outer zipper; 4. Inner zipper; 5. Upper box; 6. Lower box. Detailed Implementation

[0019] The present invention will be further described below through specific embodiments.

[0020] like Figures 1 to 4 As shown, this utility model discloses a connecting structure for a suitcase opening. This connecting structure is used for sealing the opening edges of the upper body 5 and the lower body 6 of a suitcase and for fixing the outer zipper 3 and the inner zipper 4. It includes an opening frame 1 and an insert 2. The opening frame 1 consists of two pieces, which are symmetrically arranged between the upper body 5 and the lower body 6 and are respectively glued or riveted to the openings of the upper body 5 and the lower body 6. The opening frame 1 is formed by bending an integrally molded clamping strip. The clamping strip has a first clamping opening 11, a second clamping opening 12, and a third clamping opening 13. The second clamping opening 12 and the third clamping opening 13 are... All three are cavities with a square cross-section. An opening communicating with the outside is provided on one side of the square cavity, and straight shoulders are formed on the left and right sides of the opening. The insert 2 includes a square limiting rod 21 and a sleeve 22 sleeved on the limiting rod 21. The insert 2 can be inserted into the cavity of the second clamping port 12 or the third clamping port 13, and one side of the insert 2 can abut against the shoulders on the left and right sides of the cavity opening. There are four inserts 2. The four inserts 2 are respectively inserted into the second clamping port 12 and the third clamping port 13 of the two-piece frame 1 to fix the chain of the corresponding outer zipper 3 and inner zipper 4.

[0021] like Figures 1 to 4As shown, the clamping strip of this utility model is a flexible, flat, rigid component with a cross-section that is multi-segmented and stacked. The first clamping opening 11 is a flat groove. The opening direction of the first clamping opening 11 is the same as that of the third clamping opening 13, but opposite to that of the second clamping opening 12. The first clamping opening 11 is used to allow the openings of the corresponding upper box 5 and lower box 6 to be inserted, thereby fixing the frame 1 to the upper box 5 and lower box 6. The first clamping opening 11, the second clamping opening 12, and the third clamping opening 13 all extend along the length of the clamping strip. The limiting rod 21 is a square-shaped, flexible plastic or aluminum rod, and the sleeve 22 is a flexible fabric sleeve that can be sewn to or integrally formed with the corresponding zipper tape. The limiting rod 21 and the sleeve 22 extend along the length of the clamping strip. The openings of the two second clamping openings 12 of the two-piece frame 1 face each other. The outer zipper 3 is placed between the two second clamping openings 12, and the two toothed chain straps of the outer zipper 3 are respectively connected to the sleeves 22 inside the two second clamping openings 12. The openings of the two third clamping openings 13 of the two-piece frame 1 face away from each other and are used to clamp the two inner zippers 4. The two inner zippers 4 are respectively placed outside the two third clamping openings 13. One toothed chain strap of each inner zipper 4 is connected to the sleeve 22 inside one of the third clamping openings 13, and the other toothed chain strap of each inner zipper 4 is connected to the lining fabric in the upper compartment 5 or lower compartment 6 of the suitcase. The lining fabric can be fixed to the corresponding frame 1 by the engagement of the chain teeth on these two chain straps of the inner zipper 4.

[0022] When installing the connection structure of this luggage compartment opening, first insert the limiting rod 21 of the insert 2 into the sleeve 22 with the outer zipper 3 or inner zipper 4 chain; then insert the four inserts 2 into the second clamping opening 12 and the third clamping opening 13 of the two clamping strips used to prepare the two-piece opening frame 1 respectively; then bend the clamping strip into the opening frame 1; then embed the openings of the upper box body 5 and the lower box body 6 into the first clamping opening 11 of the corresponding opening frame 1 respectively and connect them with glue or rivets.

[0023] This invention improves the connection structure of the luggage opening by providing three clamping openings on the rigid clamping strip of the opening frame 1. The second clamping opening 12, the third clamping opening 13, and the limiting rod 21 of the insert 2 inserted into the corresponding clamping opening are all square. By inserting the square insert 2 into the square clamping opening of the opening frame 1, the contact area between the two is increased to reduce shaking, thereby reducing the risk of affecting the strength of the connection between the zipper and the insert 2. By providing multiple clamping openings, it is possible to quickly install the zipper for opening and closing the luggage and the zipper for the lining fabric. This makes the connection structure of the luggage opening both rigid and allows multiple zippers to be quickly installed on the opening frame. It also increases the contact area between the insert 2 connecting the zipper and the opening frame 1, thereby improving the convenience of luggage installation and its service life.

[0024] 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 connecting structure for the opening of a suitcase, the connecting structure being used for sealing the opening edges of the upper body (5) and lower body (6) of a suitcase and for fixing the outer zipper (3) and inner zipper (4), characterized in that: The device includes a mouth frame (1) and an insert (2). The mouth frame (1) consists of two pieces, symmetrically arranged between the upper box (5) and the lower box (6) and connected to the openings of both. The mouth frame (1) is formed by bending an integrally molded clamping strip. The clamping strip has a second clamping opening (12) and a third clamping opening (13). Both the second clamping opening (12) and the third clamping opening (13) are... The cavity is a square cavity with an opening on one side that communicates with the outside. The insert (2) includes a square limiting rod (21) and a sleeve (22) fitted onto the limiting rod (21). There are four inserts (2). The four inserts (2) are respectively inserted into the second clamping port (12) and the third clamping port (13) of the two-piece frame (1) to fix the chain of the corresponding outer zipper (3) and inner zipper (4).

2. The connection structure for a luggage compartment opening according to claim 1, characterized in that: The clamping strip is a flexible, flat, rigid component with a cross-section that is multi-segmented and stacked. The clamping strip is also provided with a first clamping opening (11), which is a flat groove. The opening of the first clamping opening (11) is in the same direction as the opening of the third clamping opening (13) but opposite to the opening direction of the second clamping opening (12).

3. The connection structure for a luggage compartment opening according to claim 2, characterized in that: The first clamping port (11), the second clamping port (12) and the third clamping port (13) all extend along the length direction of the clamping strip.

4. The connection structure for a luggage compartment opening according to claim 3, characterized in that: The limiting rod (21) is a plastic or aluminum rod with a square cross-section and is flexible. The sleeve (22) is a flexible cloth sleeve. The sleeve (22) can be sewn to the corresponding zipper belt or integrally formed.

5. The connection structure for a luggage compartment opening according to claim 4, characterized in that: The limiting rod (21) and sleeve (22) extend along the length of the clamping bar.

6. The connection structure for a luggage compartment opening according to claim 5, characterized in that: The opening directions of the two second clamping ports (12) of the frame (1) are opposite to each other. The outer zipper (3) is placed between the two second clamping ports (12) and the two chains of the outer zipper (3) are respectively connected to the sleeves (22) inside the two second clamping ports (12).

7. The connection structure for a luggage compartment opening according to claim 6, characterized in that: The two third clamping ports (13) of the frame (1) are open in opposite directions to clamp the two inner zippers (4). The two inner zippers (4) are respectively placed on the outside of the two third clamping ports (13). One chain of each inner zipper (4) is connected to the sleeve (22) inside one of the third clamping ports (13).

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