Telescopic trolley case
By designing a telescopic suitcase, the lock and spring pin are linked to switch the suitcase's state, solving the convenience problem caused by the fixed volume of the suitcase and improving its reliability and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 梁银园
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-02
AI Technical Summary
The fixed volume of existing suitcases leads to insufficient volume or wasted space when the number of items carried changes, and the lack of flexible structural adjustment affects the user's convenience.
Design a telescopic suitcase, including a first suitcase, a second suitcase, and a third suitcase. Through the linkage of a latch and a spring pin, the suitcase can be flexibly switched between a compact and an expanded volume state, ensuring the smoothness of the suitcase extension and retraction process and the stability of the connection state.
It enables the suitcase to flexibly switch between compact and expanded capacity modes, improving reliability and convenience, and meeting the needs of carrying different quantities of items.
Smart Images
Figure CN224306913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage, specifically to a telescopic rolling suitcase. Background Technology
[0002] Most existing suitcases have a fixed volume, which can lead to insufficient capacity or wasted space when the number of items carried changes. Furthermore, their lack of flexible design makes them inconvenient for users in different scenarios. For example, when traveling with few items, a large suitcase can be bulky and take up unnecessary space; while when carrying more items, a fixed-volume suitcase may not be sufficient, potentially requiring users to carry additional bags and increasing their travel burden. While some expandable suitcases exist in the current technology, there is still room for improvement in terms of structural stability, ease of operation, and space utilization efficiency. Utility Model Content
[0003] The present invention aims to solve, to at least some extent, the technical problems in the above-mentioned technologies.
[0004] Therefore, this utility model discloses a telescopic trolley case, comprising:
[0005] The first box has a closed top and an open bottom;
[0006] The second box has an open structure at both the top and bottom, and its top can be retractably nested inside the first box along the bottom of the first box.
[0007] The third housing is located at the bottom of the second housing;
[0008] The second box can be completely retracted into the interior of the first box, so that the first box and the third box can be directly connected to form a compact volume state, or it can be completely extended into the interior of the first box, so that the first box, the second box and the third box can be connected in sequence to form an expanded volume state.
[0009] The telescopic suitcase disclosed in this utility model enables the suitcase to flexibly switch between a compact volume state and an expanded volume state, ensuring the smoothness of the suitcase extension and retraction process and the stability of the connection state, thereby improving the reliability and convenience of the suitcase.
[0010] In addition, the telescopic suitcase disclosed in this utility model may also have the following additional technical features:
[0011] In one embodiment of the present invention, slide rails are respectively provided on the front and rear side walls of the first box, and the sliders of the slide rails are provided on the second box.
[0012] In one embodiment of this utility model, two latches are respectively provided on both sides of the folding opening edge and the rotating edge of the first box body. The movable pins of the latches pass through the first box body and the second box body in sequence. A spring pin is provided on the inner wall of the second box body at the position corresponding to the latches. The movable pins of the spring pins pass through the second box body and the first box body in sequence.
[0013] Specifically, when the first box and the third box are directly connected and form a compact volume state, the movable pin of the latch pushes the movable pin of the spring pin to disengage from the first box. When the first box, the second box, and the third box are sequentially connected and form an expanded volume state, the movable pin of the spring pin pushes the movable pin of the latch to disengage from the second box, and the movable pin of the spring pin is engaged in the box wall of the first box.
[0014] In one embodiment of this utility model, a latch is also provided on the slide rail, and a spring pin is also provided on the inner wall of the second housing and at the position corresponding to the latch on the slide rail. The movable pin of the latch passes through the slide rail and the second housing in sequence, and the movable pin of the spring pin passes through the second housing and the slide rail in sequence.
[0015] Specifically, when the first box and the third box are directly connected and form a compact volume state, the movable pin of the latch pushes the movable pin of the spring pin to disengage from the slide rail. When the first box, the second box and the third box are sequentially connected and form an expanded volume state, the movable pin of the spring pin pushes the movable pin of the latch to disengage from the slide rail, and the movable pin of the spring pin is engaged in the slide rail.
[0016] In one embodiment of this utility model, box buckles are provided at the folding opening of the first box and the folding opening of the third box.
[0017] In one embodiment of this utility model, both the first box and the third box are provided with fork-shaped latches, the first box is provided with a cup holder, and the bottom of the third box is provided with casters.
[0018] Specifically, when the second box can be completely retracted into the interior of the first box, allowing the first box and the third box to directly connect and form a compact volume state, the fork-shaped latches on the first box and the third box are engaged together.
[0019] Additional features and advantages of this invention will be set forth in the description which follows, or may be learned by practicing this invention. Attached Figure Description
[0020] The technical solution and beneficial effects of this utility model will become apparent and readily understood from the following description in conjunction with the accompanying drawings, wherein:
[0021] Figure 1 This is a front view of the telescopic trolley case of this utility model;
[0022] Figure 2 This is a rear view of the telescopic trolley case of this utility model;
[0023] Figure 3 This is a left view of the telescopic trolley case of this utility model;
[0024] Figure 4 This is a right view of the telescopic trolley case of this utility model;
[0025] Figure 5 This is a perspective view of the telescopic trolley case of this utility model;
[0026] Figure 6 Another perspective view of the telescopic trolley case of this utility model;
[0027] Figure 7 This is a schematic diagram illustrating the linkage between the latch and the spring pin of the telescopic trolley case of this utility model.
[0028] Figure 8 This is another schematic diagram showing the linkage between the latch and the spring pin of the telescopic trolley case of this utility model;
[0029] As shown in the figure:
[0030] 1-First box, 2-Second box, 3-Third box, 4-Slide rail, 5-Slider, 6-Lock, 7-Spring pin, 8-Box buckle, 9-Fork-type lock, 10-Cup holder, 11-Telescopic pull rod, 12-Pulley, 13-Decorative panel. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0032] The telescopic trolley case disclosed in this utility model will now be described with reference to the accompanying drawings.
[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown:
[0034] A telescopic suitcase, comprising:
[0035] The first box 1 has a closed top and an open bottom;
[0036] The second box 2 has an open structure at both the top and bottom, and its top can be retracted and nested inside the first box 1 along the bottom of the first box 1.
[0037] The third box 3 is located at the bottom of the second box 2;
[0038] The second box 2 can be completely retracted into the interior of the first box 1, so that the first box 1 and the third box 3 can be directly connected to form a compact volume state, or it can be completely extended into the interior of the first box 1, so that the first box 1, the second box 2 and the third box 3 can be connected in sequence to form an expanded volume state.
[0039] The front and rear walls of the first housing 1 are respectively provided with slide rails 4, and the sliders 5 of the slide rails 4 are provided on the second housing 2.
[0040] Two latches 6 are provided on both sides of the folding opening edge and the rotating edge of the first box 1, respectively. The movable pins of the latches 6 pass through the first box 1 and the second box 2 in sequence. A spring pin 7 is provided on the inner wall of the second box 2 at the position corresponding to the latches 6. The movable pins of the spring pin 7 pass through the second box 2 and the first box 1 in sequence.
[0041] Specifically, when the first box 1 and the third box 3 are directly connected and form a compact volume state, the movable pin of the latch 6 pushes the movable pin of the spring pin 7 to disengage from the first box 1. When the first box 1, the second box 2 and the third box 3 are connected in sequence and form an expanded volume state, the movable pin of the spring pin 7 pushes the movable pin of the latch 6 to disengage from the second box 2, and the movable pin of the spring pin 7 is engaged in the box wall of the first box 1.
[0042] A latch 6 is also provided on the slide rail 4. A spring pin 7 is also provided on the inner wall of the second housing 2 at the position corresponding to the latch 6 on the slide rail 4. The movable pin of the latch 6 passes through the slide rail 4 and the second housing 2 in sequence, and the movable pin of the spring pin 7 passes through the second housing 2 and the slide rail 4 in sequence.
[0043] When the first box 1 and the third box 3 are directly connected and form a compact volume state, the movable pin of the latch 6 pushes the movable pin of the spring pin 7 to disengage from the slide rail 4. When the first box 1, the second box 2 and the third box 3 are connected in sequence and form an expanded volume state, the movable pin of the spring pin 7 pushes the movable pin of the latch 6 to disengage from the slide rail 4, and the movable pin of the spring pin 7 is engaged in the slide rail 4.
[0044] Box buckles 8 are provided at the folding opening of the first box 1 and the folding opening of the third box 3 respectively.
[0045] Both the first box 1 and the third box 3 are equipped with fork-shaped latches 9. The first box 1 is equipped with a cup holder 10 and a telescopic pull rod 11. The bottom of the third box 3 is equipped with pulleys 12.
[0046] When the second box 2 can be completely retracted into the interior of the first box 1, so that the first box 1 and the third box 3 are directly connected and form a compact volume state, the fork-shaped latches 9 on the first box 1 and the third box 3 are fastened together.
[0047] It should be noted that, in order to ensure the aesthetics of the first box 1, the slide rail 4 can be set at the center line of the front and rear side walls of the first box 1. At the same time, for further aesthetic requirements, the third box 3 is provided with a decorative panel 13, and the decorative panel 13 and the slide rail 4 are on the same axis.
[0048] In addition, to further ensure the aesthetics of the first housing 1 and the operational reliability of the slide rail 4, a decorative panel 13 can also be installed on the slide rail 4.
[0049] Specifically, when the user needs to carry fewer items, the second compartment 2 can be completely retracted into the first compartment 1. At this time, the bottom of the first compartment 1 directly connects with the top of the third compartment 3, and the fork-shaped latches 9 on the first and third compartments are fastened together, making the entire suitcase compact and easy to carry or store. When more items need to be loaded, the second compartment 2 is pulled, allowing it to fully extend along the sliding rails 4 on the front and rear walls of the first compartment 1. At this time, the first, second, and third compartments 3 are sequentially connected to form an expanded volume. The latches 6 and spring pins 7 securely connect the compartments. During use, the suitcase can be moved by the telescopic pull rod 11 on the first compartment 1 and the pulleys 12 at the bottom of the third compartment 3. The cup holder 10 on the first compartment 1 can be used to place cups and other items. The latches 8 at the folding openings of the first and third compartments facilitate opening and closing the suitcases.
[0050] In summary, the telescopic suitcase disclosed in this utility model enables the suitcase to flexibly switch between a compact volume state and an expanded volume state, ensuring the smoothness of the suitcase extension and retraction process and the stability of the connection state, thereby improving the reliability and convenience of the suitcase.
[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A telescopic suitcase, characterized in that, include: The first box (1) has a closed top and an open bottom; The second box (2) has an open structure at both its top and bottom, and its top can be retractably nested inside the first box (1) along the bottom of the first box (1). The third box (3) is located at the bottom of the second box (2); The second box (2) can be completely retracted into the interior of the first box (1), so that the first box (1) and the third box (3) are directly connected and form a compact volume state, or it can be completely extended into the interior of the first box (1), so that the first box (1), the second box (2) and the third box (3) are connected in sequence and form an expanded volume state.
2. The telescopic suitcase as described in claim 1, characterized in that, The front and rear walls of the first box (1) are respectively provided with slide rails (4), and the sliders (5) of the slide rails (4) are provided on the second box (2).
3. The telescopic suitcase as described in claim 2, characterized in that, Two latches (6) are provided on both sides of the folding opening edge and the rotating edge of the first box (1). The movable pin of the latch (6) passes through the first box (1) and the second box (2) in sequence. A spring pin (7) is provided on the inner wall of the second box (2) at the position corresponding to the latch (6). The movable pin of the spring pin (7) passes through the second box (2) and the first box (1) in sequence. When the first box (1) and the third box (3) are directly connected and form a compact volume state, the movable pin of the latch (6) pushes the movable pin of the spring pin (7) to disengage from the first box (1). When the first box (1), the second box (2) and the third box (3) are connected in sequence and form an expanded volume state, the movable pin of the spring pin (7) pushes the movable pin of the latch (6) to disengage from the second box (2), and the movable pin of the spring pin (7) is inserted into the box wall of the first box (1).
4. The telescopic suitcase as described in claim 3, characterized in that, The slide rail (4) is also provided with a latch (6), and the inner wall of the second housing (2) and the position corresponding to the latch (6) on the slide rail (4) are also provided with spring pins (7). The movable pin of the latch (6) passes through the slide rail (4) and the second housing (2) in sequence, and the movable pin of the spring pin (7) passes through the second housing (2) and the slide rail (4) in sequence. When the first box (1) and the third box (3) are directly connected and form a compact volume state, the movable pin of the latch (6) pushes the movable pin of the spring pin (7) to disengage from the slide rail (4). When the first box (1), the second box (2) and the third box (3) are connected in sequence and form an expanded volume state, the movable pin of the spring pin (7) pushes the movable pin of the latch (6) to disengage from the slide rail (4), and the movable pin of the spring pin (7) is engaged in the slide rail (4).
5. The telescopic suitcase as described in claim 1, characterized in that, Box buckles (8) are provided at the folding opening of the first box (1) and the folding opening of the third box (3).
6. The telescopic suitcase as described in claim 1, characterized in that, Both the first box (1) and the third box (3) are equipped with fork-shaped buckles (9). The first box (1) is equipped with a cup holder (10) and a telescopic pull rod (11). The bottom of the third box (3) is equipped with pulleys (12). When the second box (2) can be completely retracted into the interior of the first box (1), so that the first box (1) and the third box (3) are directly connected and form a compact volume state, the fork-shaped latches (9) on the first box (1) and the third box (3) are fastened together.