Draw-bar box with hidden frame
By using a hidden ring-shaped connecting frame and decorative edge snap-fit design, the problem of exposed suitcase frames affecting aesthetics is solved, achieving improvements in both aesthetics and cost-effectiveness, while also simplifying the installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-03
AI Technical Summary
The existing trolley case frame is exposed, which affects the appearance and is costly. In addition, the existing connection method is complicated and inconvenient to install.
The design employs a concealed ring-shaped connecting frame. Through the design of elastic hooks and protruding heads, combined with decorative edges, the ring-shaped connecting frame and decorative edges can be detachably snapped together to form a clamping groove for fixation. The decorative edges serve a decorative function on the outside, while the ring-shaped connecting frame serves a fixed connection function on the inside.
It improves the aesthetics of the suitcase, reduces costs, simplifies the installation process, and ensures a firm and reliable connection.
Smart Images
Figure CN224069886U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to a trolley case with a concealed frame. [Background Technology]
[0002] There are two common types of rolling suitcases on the market. One type consists of a front shell and a rear shell, connected by a zipper for opening and closing. This type of suitcase requires a zipper installation device. The other type also consists of a front shell and a rear shell, with a lid on the front shell connected to the lid by a zipper. This type of suitcase requires a frame to connect the front and rear shells. Currently, the frame is exposed during connection. Because the frame needs to provide a strong connection, its materials and workmanship have specific requirements. Due to cost considerations, the frame has poor aesthetics and relatively high rigidity, affecting the overall appearance and user experience of the rolling suitcase. [Utility Model Content]
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a trolley case with a simple structure, easy installation, and a concealed frame with decorative trim.
[0004] To solve the above problems, the present invention adopts the following technical solution:
[0005] A concealed frame trolley case includes a front shell with an opening on one side, a rear shell with an opening on one side, and an annular connecting frame connecting the front shell and the rear shell to their annular openings. One end of the annular connecting frame is attached to the inner side of the opening edge of the front shell, and the other end is attached to the inner side of the opening edge of the rear shell. A decorative edge is detachably snapped onto the upper part of the annular connecting frame and is attached to the outer side of the annular opening of the front shell and the rear shell. After the decorative edge is snapped onto the annular connecting frame, it forms a clamping groove to clamp the opening edges of the front shell and the rear shell.
[0006] The concealed frame trolley case described above is characterized in that: the annular connecting frame has a slot with one open end in the middle, and the decorative edge has a protrusion that can be squeezed into the slot from the open end.
[0007] The trolley case with a concealed frame as described above is characterized in that: the opening end of the slot is provided with elastic hooks that are relatively spaced apart, and the protruding head squeezes the elastic hooks to open and inserts them into the slot.
[0008] The trolley case with a concealed frame as described above is characterized in that: the protrusion is round, and a neck is provided between the protrusion and the decorative edge for the elastic hook to engage.
[0009] The concealed frame trolley case described above is characterized in that: the decorative edge is provided with clamping edges on both sides, which are spaced apart from the annular connecting frame, and the clamping edges and the annular connecting frame form the clamping groove.
[0010] The trolley case with a concealed frame as described above is characterized in that: the clamping edge is inclined toward the side of the annular connecting frame.
[0011] The trolley case with a concealed frame as described above is characterized in that: the decorative edge is circular.
[0012] The concealed frame trolley case described above is characterized in that: the annular connecting frame is riveted to the front and rear shells by rivets.
[0013] The concealed frame trolley case described above is characterized in that: multiple reinforcing ribs are provided on the end face of the annular connecting frame.
[0014] The concealed frame trolley case described above is characterized in that: the front shell is provided with a lid, and the lid is connected to the front shell by a zipper.
[0015] The beneficial effects of this utility model are as follows: the annular connecting frame is attached to the inner side of the annular opening of the front and rear boxes, and a decorative edge is snapped onto the annular connecting frame. The decorative edge is on the outer side of the front and rear boxes. Since the decorative edge does not need to play a connecting role, there is no requirement for its connection strength, and ordinary injection molding material can be used. This not only reduces costs, but also allows for different colors and shapes, reduces the external hardness of the suitcase, and has a simple structure and is easy to install. The elastic hook and protruding head are used for insertion, which ensures a firm connection and convenient installation. [Attached Image Description]
[0016] Figure 1 This is a perspective view of the present utility model;
[0017] Figure 2 This is a perspective view of the decorative edge of this utility model;
[0018] Figure 3 This is a perspective view of the annular connecting frame of this utility model;
[0019] Figure 4 This is a partial sectional view of the present invention.
Detailed Implementation Methods
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
[0021] like Figure 1-4As shown, a concealed-frame suitcase includes a front shell 1 with an opening on one side, a rear shell 2 with an opening on one side, and an annular connecting frame 3 connecting the front shell 1 and the rear shell 2 to their annular openings. The openings of the front shell 1 and the rear shell 2 face each other, and are connected together by the annular connecting frame 3 to form a single suitcase. The annular connecting frame 3 is riveted to the front shell 1 and the rear shell 2 by multiple rivets 5. To open the suitcase, a lid 6 can be provided on the front shell 1. The lid 6 is connected to the front shell 1 by a zipper 7. Opening the lid 6 allows items to be placed into or removed from the suitcase. Alternatively, a lid 6 can also be provided on the rear shell 2. One end of the annular connecting frame 3 is attached to the inner side of the opening edge of the front box 1, and the other end is attached to the inner side of the opening edge of the rear box 2. A decorative edge 4 is detachably snapped onto the upper part of the annular connecting frame 3, which is attached to the outer side of the annular opening of the front box 1 and the rear box 2. The decorative edge 4 forms an annular shape. For easy installation, the annular shape is broken so that it can be wrapped around the annular connecting frame 3. After the decorative edge 4 is snapped onto the annular connecting frame 3, it forms a clamping groove 40 that clamps the opening edge of the front box 1 and the rear box 2. The clamping groove 40 is on the left and right sides respectively for the opening edge of the front box 1 and the rear box 2 to be inserted. In this way, the decorative edge 4 is on the outside and the annular connecting frame 3 is on the inside. The annular connecting frame 3 plays a fixed connection role, and the decorative edge 4 plays a role in connecting with the annular connecting frame 3 and covering the connection part.
[0022] For easy snap-fitting, the annular connecting frame 3 has a slot 31 with one open end in the middle. The decorative edge 4 has a protrusion 41 that can be squeezed into the slot 31 from the open end. The open end of the slot 31 has elastic hooks 32 that are spaced apart. After the protrusion 41 squeezes the elastic hooks 32 to open, it is inserted into the slot 31. After the protrusion 41 is inserted into the slot 31, it presses the elastic hooks 32 to restore its elastic deformation, causing the opening of the slot 31 to close, thereby locking the protrusion 41. The protrusion 41 is circular, and there is a neck 42 between the protrusion 41 and the decorative edge 4 for the elastic hooks 32 to engage. The neck 42 is smaller than the diameter of the protrusion 41. On both sides of the decorative edge 4, there are clamping edges 43 that are spaced apart from the annular connecting frame 3. The clamping edges 43 are on the left and right sides of the decorative edge 4, forming a clamping groove 40 with the annular connecting frame 3. To ensure a firm clamping, the edges of the clamping edges 43 are inclined towards one side of the annular connecting frame 3, so that the opening of the clamping groove 40 gradually narrows. In order to improve the strength of the annular connecting frame 3, there are multiple reinforcing ribs 33 on the end face of the annular connecting frame 3. The reinforcing ribs 33 are located on the end face of the annular connecting frame 3 near the inner side of the box, that is, on the end face that does not contact the front box shell 1 and the rear box shell 2.
Claims
1. A trolley case with a hidden frame, comprising a front case shell (1) with one side opening, a rear case shell (2) with one side opening, and a ring-shaped connecting frame (3) connected to the ring-shaped openings of the front case shell (1) and the rear case shell (2), characterized in that: One end of the annular connecting frame (3) is attached to the inner side of the opening edge of the front box shell (1), and the other end is attached to the inner side of the opening edge of the rear box shell (2). The upper part of the annular connecting frame (3) is detachably connected to the decorative edge (4) attached to the outer side of the annular opening of the front box shell (1) and the rear box shell (2). The decorative edge (4) and the annular connecting frame (3) form a clamping groove (40) to clamp the opening edge of the front box shell (1) and the rear box shell (2).
2. The trolley case with a hidden frame of claim 1, wherein: The middle part of the annular connecting frame (3) is provided with a clamping groove (31) with one end open. The decorative edge (4) is provided with a protrusion (41) that can be squeezed into the clamping groove (31) from the open end.
3. The hidden-frame trolley case according to claim 2, characterized in that: The open end of the clamping groove (31) is provided with a pair of elastic clamping hooks (32) arranged opposite to each other. The protrusion (41) is inserted into the clamping groove (31) after the elastic clamping hooks (32) are squeezed open.
4. The hidden-frame trolley case according to claim 3, characterized in that: The protrusion (41) is circular, and a neck portion (42) is provided between the protrusion (41) and the decorative edge (4) for clamping the elastic clamping hooks (32).
5. The hidden-frame trolley case according to claim 2, characterized in that: The decorative edge (4) is provided with a clamping edge (43) on each side, which is arranged opposite to the annular connecting frame (3). The clamping edge (43) and the annular connecting frame (3) form the clamping groove (40).
6. The hidden-frame trolley case according to claim 5, characterized in that: The clamping edge (43) is inclined to one side of the annular connecting frame (3).
7. The hidden-frame trolley case according to claim 1, characterized in that: The decorative edge (4) is annular.
8. The hidden-frame trolley case according to claim 1, characterized in that: The annular connecting frame (3) is riveted to the front box shell (1) and the rear box shell (2) by rivets (5).
9. The hidden-frame trolley case according to claim 1, characterized in that: The end face of the annular connecting frame (3) is provided with a plurality of reinforcing ribs (33).
10. The hidden-frame trolley case according to claim 1, characterized in that: The front box shell (1) is provided with a box cover (6), and the box cover (6) is connected to the front box shell (1) by a zipper (7).