Luggage case zipper connecting frame and luggage case
By incorporating a ring-shaped, closed, one-piece molded frame and limiting groove on the suitcase, combined with mounting grooves and buckle designs, the problems of insecure zipper connections and cumbersome assembly are solved. This achieves simple and robust luggage packing functionality, extends service life, improves the ease of assembly, and enhances the connection stability and assembly convenience of the suitcase.
Patent Information
- Application Number
- CN202520091472.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing luggage zipper connections are prone to aging and breakage, are not secure, are cumbersome to assemble, and have a short lifespan.
It adopts a ring-shaped closed one-piece molded frame with a receiving groove and a protrusion forming a limiting groove. The outer periphery has an installation groove for quick and easy fixed connection with the edge of the suitcase, and a buckle is provided on the inner side of the frame for the installation of the inner lining or inner sleeve.
It achieves simple assembly, firm connection, low assembly cost, convenient assembly efficiency, and ease of assembly, extending the service life and improving the ease of assembly of the suitcase.
Smart Images

Figure CN223640295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a storage box, and more particularly to a luggage zipper connecting frame and a luggage box. Background Technology
[0002] Suitcases are an essential tool for people to carry clothes and belongings when traveling. Current suitcases generally consist of a left side and a right side, connected by a zipper. When the zipper is opened, the left and right sides can be opened relative to each other; when the zipper is closed, the left and right sides are joined together to seal the interior. Traditionally, the left and right sides of suitcases are made of plastic. There are generally two ways to connect the zipper to the edges of the left and right sides: one is by stitching; the other is by using a soft rubber strip. Specifically, the soft rubber strip is bent to form the shape of the suitcase edge, and then its ends are connected and secured with metal connectors. The strip is then glued to the edges of the left and right sides, and the zipper is inserted into the strip. However, the stitching in the first method is prone to aging and breakage, resulting in a weak connection and short lifespan, and the stitching process is cumbersome. The second method requires assembling the soft rubber strip first, which involves more steps and is more inconvenient. Utility Model Content
[0003] The purpose of this utility model is to provide a luggage zipper connecting frame that makes luggage assembly simple, convenient, and secure, and effectively extends the service life of luggage.
[0004] Another objective of this invention is to provide a suitcase that is simple and convenient to assemble, has a strong connection, and a long service life.
[0005] Another objective of this utility model is to provide a suitcase that is simple and convenient to assemble, has a strong connection, and a long service life.
[0006] To achieve the above objectives, the luggage zipper connecting frame provided by this utility model includes a ring-shaped closed frame, which is integrally formed; the surface of the frame is recessed and has a ring-shaped receiving groove, and the inner sidewall of the receiving groove protrudes inward with a protrusion, which forms a limiting groove with a gap between the protrusion, the sidewall and the inner bottom surface of the receiving groove; the frame is provided with a ring-shaped mounting groove around the outer periphery of the receiving groove, and the opening direction of the mounting groove is opposite to the groove opening direction of the receiving groove.
[0007] Compared with existing technologies, this utility model, by setting a frame body, makes the frame body a closed ring structure, and it is made of a one-piece molding structure, so that the entire connecting frame does not need to be bent and formed before installation on the suitcase. This simplifies the assembly steps and makes assembly simple and convenient. In addition, a receiving groove is set on the surface of the frame body, and a protrusion is set on the inner side wall of the receiving groove, thereby forming a ring-shaped limiting groove that can accommodate a zipper. This allows the zipper to enter and install, and the limiting groove can also restrain the zipper, effectively preventing the zipper from detaching from the frame body, making the connection very firm and stable. Furthermore, an installation groove is set on the outer periphery of the frame body, which is used to quickly fix the connection to the edge of the suitcase, thus further simplifying the assembly steps and improving the convenience of assembly. Through the above-mentioned design, the suitcase can be assembled quickly and cost-effectively, and the structure of the suitcase is very robust, with a long service life.
[0008] Preferably, the two opposing inner sidewalls of the receiving groove symmetrically protrude from the protrusions, forming the gap between the two protrusions. This allows the gap to be located in the middle of the limiting groove, which is beneficial for zipper assembly and ensures that the zipper is subjected to balanced forces on both sides, thereby maintaining a stable connection with the frame and extending its service life.
[0009] Preferably, the outer upper edge of the frame is bent and extended to form the mounting groove.
[0010] Preferably, the inner upper edge of the frame is bent and extended to form a connecting portion, and a buckle is disposed on the inner side of the connecting portion. A limiting step surface is formed on the upper surface of the connecting portion; the limiting step surface is higher than the opening of the receiving groove. By bending and extending the connecting portion, support can be provided for the buckle, and a hollow groove can be formed inside, improving structural strength and saving molding material. Furthermore, by forming a limiting step surface on the upper surface of the connecting portion, it can abut against the limiting step surface of the connecting frame on the opposite side after being installed in the suitcase. This allows for alignment of the left and right suitcases, preventing excessive pressure and potential damage to the zipper.
[0011] Preferably, the upper side of the limiting groove has a zipper inlet, the width of which is greater than the width of the gap and less than or equal to the width of the limiting groove. By providing the zipper inlet, the zipper can quickly and easily enter the limiting groove, effectively improving the convenience of assembly.
[0012] Preferably, the protrusions are arranged intermittently along the extension direction of the receiving groove. This facilitates the setting of ejector pins in the molding die, makes demolding after product molding easier, and also saves molding material, thereby reducing production costs.
[0013] Preferably, the frame is provided with a plurality of buckles circumferentially around the inner side wall of the receiving groove. By providing buckles, the buckles can be used to connect with the wire strips of the lining or inner sleeve of the suitcase, thereby making it easy and quick to install or remove the lining or inner sleeve of the suitcase, and making it very convenient to use and clean.
[0014] Specifically, the buckle includes an upper buckle body and a lower buckle body, forming an inwardly opening groove between the upper buckle body and the lower buckle body. Because the upper and lower buckle bodies have a certain degree of elasticity, the opening of the groove can elastically open or close, allowing the steel wire to be quickly installed into the groove and automatically locked in place, making it simple and convenient to use.
[0015] Specifically, the slot is a C-shaped slot.
[0016] A suitcase includes a left side panel, a right side panel, a left zipper, a right zipper, and a suitcase zipper connecting frame. The suitcase zipper connecting frame is respectively disposed on the edges of the left side panel and the right side panel. The left zipper and the right zipper are respectively disposed on the two suitcase zipper connecting frames. The left zipper and the right zipper can be connected and closed or separated.
[0017] A suitcase includes a left side panel, a right side panel, a left zipper, a right zipper, and a suitcase zipper connecting frame. The suitcase zipper connecting frame is respectively disposed on the edges of the left side panel and the right side panel. The left zipper and the right zipper are respectively disposed on the two suitcase zipper connecting frames, and the left zipper and the right zipper can be connected and closed or separated. The suitcase also includes an inner lining or inner sleeve, the edge of which is provided with a steel wire strip, and the steel wire strip is engaged with a buckle. Attached Figure Description
[0018] Figure 1 This is a three-dimensional view of the suitcase of this utility model.
[0019] Figure 2 This is an exploded view of the suitcase of this utility model.
[0020] Figure 3 This is a perspective view of the zipper connecting frame of the suitcase of this utility model.
[0021] Figure 4 This is a top view of the zipper connecting frame of the suitcase of this utility model.
[0022] Figure 5 yes Figure 4 Enlarged view of section A.
[0023] Figure 6 yes Figure 4 A cross-sectional view along the BB direction.
[0024] Figure 7 This is a cross-sectional view of the left zipper of the suitcase of this utility model being installed in the zipper connecting frame. Detailed Implementation
[0025] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0026] like Figures 1 to 7 As shown, the suitcase 100 of this utility model includes a left side body 1, a right side body 2, a left zipper 3, a right zipper 4, and a zipper connecting frame 5 for both suitcases. The zipper connecting frames 5 are symmetrically and fixedly disposed on the edges of the left side body 1 and the right side body 2, respectively. The left zipper 3 is disposed on the zipper connecting frame 5 of the left side body 1, and the right zipper 4 is disposed on the zipper connecting frame 5 of the right side body 2. The left zipper 3 and the right zipper 4 can be connected and closed or separated.
[0027] Please see Figures 3 to 7The luggage zipper connecting frame 5 includes a ring-shaped closed frame 51, which is generally rectangular in shape and is integrally molded. The lower side of the frame 51 is curved inward to counteract the deformation caused by downward gravity after the luggage 100 stores items. The surface of the frame 51 has a recessed ring-shaped receiving groove 511. The inner sidewall of the receiving groove 511 protrudes inward with a protrusion 512, which forms a limiting groove 513 with a gap 514 between the protrusion 512, the sidewall of the receiving groove 511, and the inner bottom surface of the receiving groove 511. The two opposite inner sidewalls of the receiving groove 511 symmetrically protrude the protrusion 512, and the gap 514 is formed between the two protrusions 512. This allows the gap 514 to be located in the middle of the limiting groove 513, which is beneficial for zipper assembly and ensures that the forces on both sides of the zipper are balanced, thereby maintaining a stable connection with the frame 51 and extending its service life. Specifically, the left zipper 3 and the right zipper 4 have the same structure. Taking the structure of the left zipper 3 as an example, the left zipper 3 includes a locking block 31 and a braided strip 32 connected to the locking block 31. The upper end of the braided strip 32 is connected to a connecting end 33. The locking block 31 is accommodated in the limiting groove 513; the braided strip 32 extends from the limiting groove 513 through the gap 514 toward the opening 511a of the accommodating groove 511. The frame 51 has an annular mounting groove 515 around the outer periphery of the accommodating groove 511. Specifically, the outer upper edge of the frame 51 first bends outward and then bends downward to extend the mounting portion 515a, thereby forming the mounting groove 515 around the outer periphery of the accommodating groove 511. The opening 515a of the mounting groove 515 faces the opposite direction to the groove 511a of the receiving groove 511. The mounting groove 515 is filled with curing adhesive to facilitate connection with the edge of the luggage. Specifically, the edge of the left side of the suitcase 1 is inserted into the mounting groove 515 of the suitcase zipper connecting frame 5 on that side, and the mounting groove 515 is filled with curing adhesive to fix the edge of the left side of the suitcase 1 to the suitcase zipper connecting frame 5 on that side. Similarly, the edge of the right side of the suitcase 2 is inserted into the mounting groove 515 of the suitcase zipper connecting frame 5 on that side, and the mounting groove 515 is filled with curing adhesive to fix the edge of the right side of the suitcase 2 to the suitcase zipper connecting frame 5 on that side.
[0028] Please see again Figure 5 and Figure 6The protrusions 512 are arranged intermittently along the extending direction of the receiving groove 511. This facilitates the setting of ejector pins in the molding die, makes demolding after product molding easy, and saves molding material, thereby reducing production costs. The upper side of the limiting groove 513 has a zipper inlet 513a. The width of the zipper inlet 513a is greater than the width of the gap 514 and less than or equal to the width of the limiting groove 513, and the length of the zipper inlet 513a is greater than the length of the gap between two adjacent protrusions 512. In this embodiment, the distance between the protrusions 512 at both ends of the zipper inlet 513a is twice or more the length of the gap between two adjacent protrusions 512, thereby facilitating the guidance of the zipper into the limiting groove 513. By setting the zipper inlet 513a, the zipper can quickly and easily enter the limiting groove 513, effectively improving the convenience of assembly.
[0029] Please see again Figure 6 The inner upper edge of the frame 51 is first bent outward and then bent downward to form a connecting part 516. A buckle is disposed inside the connecting part 516, and a limiting step surface 517 is formed on the upper surface of the connecting part 516; the limiting step surface 517 is higher than the groove opening 511a of the receiving groove 511. By bending and extending the connecting part 516, it can provide support for the buckle and also form a hollow groove 518 inside, improving structural strength and saving molding material. Furthermore, by forming a limiting step surface 517 on the upper surface of the connecting part 516, it can abut against the limiting step surface 517 of the connecting frame on the opposite side after it is installed in the suitcase 100. This allows for alignment of the left and right suitcases 100, preventing excessive pressure between them from damaging the zipper.
[0030] Please see again Figure 6 and Figure 7In another embodiment, the frame 51 has a plurality of buckles 519 circumferentially arranged around the inner side wall of the receiving groove 511. The suitcase 100 also includes an inner lining 6 or inner sleeve, the edge of which is provided with a steel wire strip 61. The steel wire strip 61 engages in the slot 519c of the buckle 519 to position the inner lining 6. By providing buckles 519, the buckles 519 can be used to connect with the steel wire strip 61 of the inner lining 6 or inner sleeve of the suitcase 100, thereby making it easy and quick to install or remove the inner lining 6 or inner sleeve of the suitcase 100, and making it very convenient to use and clean. Specifically, the buckle 519 includes an upper buckle body 519a and a lower buckle body 519b, and an inwardly opening slot 519c is formed between the upper buckle body 519a and the lower buckle body 519b. Specifically, the slot 519c is a C-shaped slot. Because the upper buckle body 519a and the lower buckle body 519b have a certain degree of elasticity, the opening of the slot 519c can be elastically opened or closed, so that the steel wire 61 can be quickly installed in the slot 519c and automatically locked, making it simple and convenient to use.
[0031] Compared with the prior art, this utility model, by setting the frame 51, makes the frame 51 a closed ring structure, and it is made of a one-piece molding structure, so that the entire connecting frame does not need to be bent and formed before being installed on the suitcase 100. This simplifies the assembly steps and makes assembly simple and convenient. In addition, a receiving groove 511 is set on the surface of the frame 51, and a protrusion 512 is set on the inner side wall of the receiving groove 511, thereby forming a ring-shaped limiting groove 513 that can accommodate a zipper. Thus, the zipper can be installed, and the limiting groove 513 can restrain the zipper, effectively preventing the zipper from detaching from the frame 51, and the connection is very firm and stable. Furthermore, an installation groove 515 is set on the outer periphery of the frame 51, which is used to quickly fix the connection with the edge of the suitcase 100, thereby further simplifying the assembly steps and improving the convenience of assembly. Through the above settings, the assembly of the suitcase 100 is quick and easy, the assembly cost is low, and the structure of the suitcase 100 is very strong and has a long service life.
[0032] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.
Claims
1. A zipper connecting frame for a suitcase, characterized in that: The device includes a closed, annular frame, which is integrally formed. The surface of the frame has a recessed, annular receiving groove. The inner sidewall of the receiving groove has protruding protrusions, which together with the sidewall and inner bottom surface of the receiving groove form a limiting groove with a gap. The frame has an annular mounting groove around the outer periphery of the receiving groove, and the opening direction of the mounting groove is opposite to the groove opening direction of the receiving groove.
2. The luggage zipper connecting frame as described in claim 1, characterized in that: The two opposing inner sidewalls of the receiving groove symmetrically protrude from each other, forming the gap between the two protrusions.
3. The luggage zipper connecting frame as described in claim 1, characterized in that: The upper outer edge of the frame is bent and extended to form the mounting groove.
4. The luggage zipper connecting frame as described in claim 1, characterized in that: The inner upper edge of the frame is bent and extended to form a connecting part, and a buckle is set on the inner side of the connecting part. The upper surface of the connecting part forms a limiting step surface; the limiting step surface is higher than the groove of the receiving groove.
5. The luggage zipper connecting frame as described in claim 1, characterized in that: The upper side of the limiting groove has a zipper inlet, the width of which is greater than the width of the gap and less than or equal to the width of the limiting groove.
6. The luggage zipper connecting frame as described in claim 1, characterized in that: The protrusions are arranged intermittently along the extension direction of the receiving groove.
7. The luggage zipper connecting frame as described in claim 1, characterized in that: The frame is provided with multiple buckles circumferentially around the inner side wall of the receiving groove.
8. The luggage zipper connecting frame as described in claim 7, characterized in that: The buckle includes an upper buckle body and a lower buckle body, and an inwardly opening groove is formed between the upper buckle body and the lower buckle body.
9. A suitcase, characterized in that: The luggage includes a left side box, a right side box, a left zipper, a right zipper, and a luggage zipper connecting frame as described in any one of claims 1 to 6. The luggage zipper connecting frames are respectively disposed on the edges of the left side box and the right side box. The left zipper and the right zipper are respectively disposed on the two luggage zipper connecting frames. The left zipper and the right zipper can be connected and closed or separated.
10. A suitcase, characterized in that: The luggage includes a left side panel, a right side panel, a left zipper, a right zipper, and a luggage zipper connecting frame as described in any one of claims 7 to 8. The luggage zipper connecting frames are respectively disposed on the edges of the left side panel and the right side panel. The left zipper and the right zipper are respectively disposed on the two luggage zipper connecting frames. The left zipper and the right zipper can be connected and closed or separated. The luggage also includes an inner lining or inner sleeve. The edge of the inner lining or inner sleeve is provided with a steel wire strip, which is engaged with a buckle.