A telescopic device for bags and suitcases

Abstract

This invention discloses a telescopic device for luggage and a suitcase, including a female seat body, a male seat assembly, and a linkage assembly. The female seat body has a movable groove, and at least one row of teeth is provided in the movable groove. The male seat assembly is placed in the movable groove and engages with the row of teeth. The linkage assembly is movably connected to the male seat assembly. By pulling the linkage assembly, the male seat assembly deforms and separates from the row of teeth. The male seat assembly can engage and be fixed with the row of teeth at different positions, thereby adjusting the volume of the suitcase. Users can freely choose according to their actual needs to meet different user requirements. Moreover, the female seat body, male seat assembly, and linkage assembly can be pre-assembled into a whole and then fixed to the suitcase body and telescopic part for easy installation. In addition, after the male seat assembly is engaged and fixed with the row of teeth, it provides support for the telescopic part, so that the position of the telescopic part is fixed and will not change due to external influences.

Description

Technical Field

[0001] This invention belongs to the field of telescopic device technology, specifically a telescopic device for bags and luggage. Background Technology

[0002] Suitcases are one of the most common packing tools for people traveling. Most suitcases are made of hard plastic or cloth, and they are divided into snap-lock closures and zipper closures depending on the material. Regardless of the material and closure method, suitcases have a fixed size. People usually only have one or two suitcases of the same or different sizes at home. When there are too many items to pack, due to the limited capacity of the suitcase, it is necessary to put them in two separate suitcases, which will make it inconvenient to carry.

[0003] To address this issue, an expandable suitcase exists in the prior art, such as Chinese patent document CN213096580U, which describes an expandable suitcase. The expandable mechanism employed involves an adjusting rod meshing with the adjusting shaft on the suitcase body as it rotates, expanding or contracting to both sides. This extends or contracts the suitcase body. While the adjusting rod changes the internal space of the suitcase, it also moves a fixed plate inside the suitcase. The fixed plate, in turn, moves a pulling rod, thus adjusting the size of the internal space of the suitcase.

[0004] During the implementation of this method, it was found that, since the adjusting rod is located on the outside of the box, it firstly affects the aesthetics, and secondly, it is easy to accidentally touch it, causing changes in the volume of the box. When the volume of the box increases, empty space will appear inside the box, causing the items inside to scatter. In addition, it has many components, specifically an adjusting shaft with a toothed structure, and adjusting rods with toothed structures on both sides of the adjusting shaft. It is necessary to ensure that the adjusting rods are engaged with the adjusting shaft, so the installation is not convenient. Summary of the Invention

[0005] The purpose of this invention is to provide a telescopic device for bags and luggage to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A telescopic device for bags includes a female seat body, a male seat assembly, and a linkage assembly;

[0008] The female seat body is provided with a movable groove, and at least one row of teeth is provided in the movable groove;

[0009] The male seat assembly is placed in the movable slot and engages with the toothed rack;

[0010] The linkage component is movably connected to the seat component, and by pulling the linkage component, the seat component is deformed and separated from the tooth rack.

[0011] The male seat assembly can engage and be fixed at different positions with the gear teeth, allowing for adjustment of the suitcase's volume. Users can freely choose according to their actual needs, satisfying different requirements. Furthermore, the female seat body, male seat assembly, and linkage assembly can be pre-assembled into a single unit, which is then fixed to the suitcase body and telescopic part for easy installation. In addition, after the male seat assembly engages and is fixed with the gear teeth, it provides support for the telescopic part, ensuring that the position of the telescopic part remains fixed and does not change due to external influences.

[0012] In a further technical solution, the male seat assembly includes a male seat body, and at least one spring arm is provided inside the male seat body. The spring arm is connected to a linkage assembly, and teeth are provided outside the spring arm, which mesh with the toothed gear.

[0013] In a further technical solution, the male seat body includes a fixing part, and a support rib one and a support rib two are symmetrically connected on one side of the fixing part. The support rib one and the support rib two are connected by a connecting rib, and the connecting rib is provided with at least one recess, which corresponds to the spring arm.

[0014] In a further technical solution, the number of toothed sections is two, which are symmetrically arranged in the movable slots.

[0015] In a further technical solution, the linkage component includes a linkage plate, one end of which is movably engaged with the male seat body, and the other end is provided with a fixed boss. The fixed boss is placed in the movable position of the spring arm, and the movable position is provided with a ramp on the side away from the teeth.

[0016] In a further technical solution, the male seat body is provided with two sliding grooves, and the bottom surface of the linkage plate is provided with two buckles, which pass through the sliding grooves and engage with the male seat body.

[0017] A further technical solution is that a fixing rib is provided in the body of the male seat along the extension direction of the spring arm, and two limiting blocks are provided on the bottom surface of the linkage plate, with the two limiting blocks respectively placed on both sides of the fixing rib.

[0018] In a further technical solution, the male seat body is also provided with a reset rib, one end of which is connected to the spring arm and the other end is connected to the fixing rib.

[0019] A further technical solution is that the male seat body has symmetrical buckles on both sides near the teeth, and the two buckles can abut against the female seat body.

[0020] A suitcase includes the aforementioned telescopic device for luggage. The suitcase includes a body and a lid. A telescopic section is provided around the circumference of the opening of the body. The telescopic section and the lid are sealed and connected by a zipper or buckle. The telescopic device is respectively provided on both sides of the body and the telescopic section, with one end connected to the body and the other end connected to the telescopic section. When adjustment is needed, the telescopic device can be unlocked, and the telescopic section can be pulled or pressed down before locking the telescopic device. In addition, this telescopic device is plate-shaped and can be installed inside the suitcase without taking up too much space, and it is also more aesthetically pleasing.

[0021] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0022] Figure 1 : Front view of the telescopic device of the present invention in retracted and extended states.

[0023] Figure 2 : Diagram of the telescopic device of the present invention in its retracted and expanded states.

[0024] Figure 3 : A three-dimensional structural diagram of the telescopic device of the present invention.

[0025] Figure 4 The structure of the public seat component and linkage component of the present invention.

[0026] Figure 5 : Exploded view of the telescopic device of the present invention.

[0027] Figure 6 Diagram showing the usage state of the telescopic device of this invention combined with a suitcase.

[0028] Reference numerals: 11-Female seat body, 12-Slot, 13-Toothed teeth, 2-Male seat assembly, 21-Male seat body, 211-Fixing part, 212-Support rib one, 213-Support rib two, 214-Connecting rib, 215-Recess, 22-Spring arm, 23-Toothed teeth, 24-Moving part, 25-Slope, 26-Fixing rib, 27-Reset rib, 28-Slide groove, 29-Undercut, 3-Linkage assembly, 31-Linkage plate, 32-Fixing boss, 33-Snap, 34-Limiting block, 41-Box body, 42-Telescopic part, 43-Cover body. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Please refer to Figure 1-6 ;

[0031] The telescopic device described in this invention is used to expand the volume of a suitcase, and the expanded volume can be adjusted. People can adjust the volume according to the size of the items they are carrying to avoid the situation of the volume being too large and having gaps. The telescopic device will be explained in conjunction with a suitcase.

[0032] The suitcase includes a body 41 and a lid 43. A telescopic part 42 is provided around the circumference of the opening of the body 41. The telescopic part 42 and the lid 43 are sealed together by a zipper or buckle 33. The telescopic device is respectively set on both sides of the body 41 and the telescopic part 42, with one end connected to the body 41 and the other end connected to the telescopic part 42. When adjustment is needed, the telescopic device can be unlocked, and the telescopic part 42 can be pulled or pressed down before locking the telescopic device. In addition, the telescopic device is plate-shaped and can be installed inside the suitcase without taking up too much space, and it is also more aesthetically pleasing.

[0033] In this embodiment, the telescopic device includes a female seat body 11, a male seat assembly 2, and a linkage assembly 3. The female seat is fixed to the suitcase body 41, while the male seat assembly 2 is fixed to the telescopic part 42. The female seat body 11 has a movable groove 12, and at least one row of teeth 13 is provided in the movable groove 12. The multiple teeth on the row of teeth 13 have a certain angle. The male seat assembly 2 is placed in the movable groove 12 and engages with the row of teeth 13. The linkage assembly 3 is movably connected to the male seat assembly 2. By pulling the linkage assembly 3, the male seat assembly 2 is deformed and separated from the row of teeth 13. When the volume of the suitcase decreases, the telescopic part 42 needs to be moved towards the suitcase body 41. When the luggage compartment expands, the telescopic part 42 needs to be pulled away from the compartment body 41. In other words, the male seat assembly 2 needs to be pulled away from the female seat body 11. At this time, the male seat assembly 2 needs to be pulled away from the female seat body 11. At this time, the linkage assembly 3 needs to be pulled to deform the male seat assembly 2 and separate it from the rack 13. In this way, the male seat assembly 2 can move upward along the movable groove 12. Then the linkage assembly 3 is released to make the male seat assembly 2 engage and be fixed with the upper teeth of the rack 13.

[0034] In this embodiment, the toothed rack 13 has a certain length, and the male seat assembly 2 can engage and fix with different positions of the toothed rack 13 to adjust the volume of the suitcase. Users can freely choose according to their actual needs to meet different user requirements. Moreover, the female seat body 11, the male seat assembly 2, and the linkage assembly 3 can be pre-assembled into a whole and then fixed to the suitcase body 41 and the telescopic part 42 for easy installation. In addition, after the male seat assembly 2 engages and fixes with the toothed rack 13, it provides support for the telescopic part 42, so that the position of the telescopic part 42 is fixed and will not change due to external influences.

[0035] The present invention does not limit the specific form of the toothed arrangement. The toothed arrangement can be integrally formed into a strip or divided into multiple segments along a straight line. When it is distributed in multiple segments, the male seat assembly can be inserted into the space between two segments to form multi-level adjustment and more stable support, while adapting to various expansion volume requirements.

[0036] One embodiment of the male seat assembly 2 of the present invention specifically includes a male seat body 21. At least one spring arm 22 is provided on the inner side of the male seat body 21. The spring arm 22 is connected to the linkage assembly 3. Teeth 23 are provided on the outer side of the spring arm 22, and the teeth 23 engage with the row of teeth 13. In this embodiment, one side of the teeth 23 also has an incline. When a retraction operation is required, utilizing the characteristics of the spring arm 22 and the incline, the male seat body 21 can be directly pressed down towards the female seat body 11 without pulling the linkage assembly 3, allowing the teeth 23 and the row of teeth 13 at different positions to engage. It should be noted that this structure only locks the expanded state, because if there are many items placed inside the suitcase, the telescopic part 42 cannot approach the suitcase body 41. In other words, the volume cannot be reduced. If the telescopic part 42 can still move towards the box body 41 after the items are stacked, it means that there is still remaining volume inside the suitcase. This allows the items to be stacked more compactly, making it less likely for them to scatter or shift during transportation. When expansion is needed, the linkage component 3 is pulled to deform the spring arm 22, causing the teeth 23 to disengage from the rack teeth 13. At this time, the seat body 21 is in the unlocked state and can be freely pulled and adjusted within the movable slot 12. In addition, the seat body 21 is also provided with a reset rib 27. One end of the reset rib 27 is connected to the spring arm 22, and the other end is connected to the fixed rib 26. The reset rib 27 can extend the service life of the spring arm 22 and increase the reset force of the spring arm 22.

[0037] Furthermore, the seat body 21 includes a fixing part 211. Support rib 1 212 and support rib 213 are symmetrically connected on one side of the fixing part 211. Support rib 1 212 and support rib 213 are connected by a connecting rib 214. The connecting rib 214 is provided with at least one recess 215, which corresponds to the spring arm 22. The toothed 13 can pass through the protrusion and engage with the teeth 23 on the spring arm 22. At the same time, the recess 215 can restrict the position of the toothed 13 to avoid misalignment.

[0038] Based on all the above embodiments, when there is one tooth 13, it is set in the middle of the movable groove 12, and the corresponding spring arm 22 is also set in the middle of the male seat body 21; when there are two teeth 13, they are symmetrically arranged in the movable groove 12, and the corresponding spring arm 22, tooth 23 and recess 215 are set in pairs, all adapted to the tooth 13. The pair arrangement of the above components can make the whole structure more resistant to force and more stable.

[0039] One embodiment of the linkage component 3 in this invention specifically includes a linkage plate 31. One end of the linkage plate 31 is movably engaged with the male seat body 21, and the other end is provided with a fixed boss 32. The fixed boss 32 is placed in the movable position 24 of the spring arm 22. The movable position 24 is provided with a ramp 25 on the side away from the teeth 23, and the fixed boss 32 is placed at one end of the ramp 25. When the male seat body 21 extends into the female seat body 11, the teeth 23 on the spring arm 22 will engage and disengage with the toothed rack 13 at different positions. During this process, the spring arm 22 will float between being popped open and reset. Therefore, the provision of movable space can avoid During this process, the spring arm 22 is affected by the fixed boss 32; when unlocking is required, the linkage plate 31 is pulled backward relative to the male seat body 21, and the fixed boss 32 moves backward in a straight line. The spring arm 22 is guided by the ramp 25 and gradually deforms. Finally, the fixed boss 32 will be placed at the other end of the ramp 25. At this time, the teeth 23 on the spring arm 22 disengage from the toothed rack 13, realizing unlocking. When the linkage plate 31 is released, the spring arm 22 returns to its original position. The fixed boss 32 is guided by the ramp 25 to move back to the end of the ramp 25. At the same time, the linkage plate 31 is pulled back to its original position, and the teeth 23 re-engage with the toothed rack 13.

[0040] Furthermore, the male seat body 21 is provided with two sliding grooves 28, and the bottom surface of the linkage plate 31 is provided with two buckles 33. The two buckles 33 pass through the sliding grooves 28 and engage with the male seat body 21. The buckles 33 can move along the sliding grooves 28 to realize the movement of the linkage plate 31. In addition, the male seat body 21 is provided with a fixing rib 26 extending along the spring arm 22. The bottom surface of the linkage plate 31 is provided with two limiting blocks 34. The two limiting blocks 34 are respectively placed on both sides of the fixing rib 26 to limit the position of the linkage plate 31.

[0041] In this embodiment of the invention, the male seat body 21 is symmetrically provided with buckles 29 on both sides near the teeth 23. The two buckles 29 can abut against the female seat body 11. The buckles 29 can prevent the male seat body 21 from separating from the female seat body 11.

[0042] The present invention also provides a suitcase including the above-mentioned telescopic device for bags. Since the suitcase and the embodiment of the telescopic device for bags of the present invention are based on the same concept, they bring the same technical effects. For details, please refer to the description in the embodiment of the telescopic device for bags of the present invention, which will not be repeated here.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A telescopic device for bags, characterized in that: It includes the female seat body (11), the male seat assembly (2), and the linkage assembly (3); The female body (11) is provided with a movable groove (12), and the movable groove (12) is provided with at least one row of teeth (13); The male seat assembly (2) is placed in the movable slot (12) and engages with the toothed rack (13); The male seat assembly (2) includes a male seat body (21), and at least one spring arm (22) is provided on the inner side of the male seat body (21). The spring arm (22) is connected to the linkage assembly (3). Teeth (23) are provided on the outer side of the spring arm (22). The teeth (23) mesh with the row teeth (13). The male seat body (21) includes a fixing part (211). Support rib one (212) and support rib two (213) are symmetrically connected on one side of the fixing part (211). Support rib one (212) and support rib two (213) are connected by a connecting rib (214). At least one recess (215) is provided on the connecting rib (214). The recess (215) corresponds to the spring arm (22). There are two rows of row teeth (13), which are symmetrically arranged in the movable groove (12). The male seat body (21) is provided with a fixing rib (26) extending along the spring arm (22). Two limiting blocks (34) are provided on the bottom surface of the linkage plate (31). The two limiting blocks (34) are respectively placed on both sides of the fixing rib (26). The male seat body (21) is also provided with a reset rib (27). One end of the reset rib (27) is connected to the spring arm (22), and the other end is connected to the fixing rib (26). The linkage component (3) is movably connected to the male seat component (2). By pulling the linkage component (3), the male seat component (2) is deformed and separated from the toothed rack (13). The linkage component (3) includes a linkage plate (31), one end of which is movably engaged with the male seat body (21), and the other end is provided with a fixed boss (32). The fixed boss (32) is placed in the movable position (24) of the spring arm (22), and the movable position (24) is provided with a ramp (25) on the side away from the tooth (23). When unlocking is required, the linkage plate is pulled back relative to the male seat body. The fixed boss moves backward in a straight line, and the spring arm is gradually deformed by the guide of the ramp. The fixed boss will be placed at the other end of the ramp, so that the teeth on the spring arm disengage from the toothed rack, thus unlocking. When the linkage plate is released, the spring arm resets. The fixed boss moves back to the end of the ramp by the guide of the ramp. At the same time, the linkage plate is pulled back to reset, and the teeth re-engage with the toothed rack.

2. The telescopic device for bags according to claim 1, characterized in that: The male seat body (21) is provided with two sliding grooves (28), and the bottom surface of the linkage plate (31) is provided with two buckles (33). The two buckles (33) pass through the sliding grooves (28) and engage with the male seat body (21).

3. The telescopic device for bags according to claim 1, characterized in that: The male seat body (21) has symmetrical buckles (29) on both sides near the teeth (23), and the two buckles (29) can abut against the female seat body (11).

4. A suitcase, characterized in that: Includes the telescopic device for bags as described in any one of claims 1-3.

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