Telescopic expander of draw-bar box and draw-bar box with telescopic expander

Abstract

The utility model belongs to the field of luggage materials and manufacturing processes, and particularly relates to a telescopic expander of a draw-bar box and the draw-bar box. The telescopic expander of the draw-bar box is used for being fixed on a box body of the draw-bar box and comprises an inserting sleeve and an inserting piece, a sliding groove for the inserting piece to slide is formed in the inserting sleeve, the inserting piece comprises a clamping strip capable of being inserted into the sliding groove and sliding within a limited range, the telescopic expander of the draw-bar box further comprises a fixing base, and the fixing base is connected with the inserting sleeve and / or the inserting piece. The fixed seat comprises a lower base and an upper base, the lower base and the upper base are detachably connected, and when the lower base and the upper base are connected, the plug bush and / or the plug-in are / is fixed on the draw-bar box body. The box body is connected and expanded through the telescopic expander, the telescopic expander can be automatically expanded along with the change of the expansion mechanism during expansion, the use convenience is improved, the plug bush and the plug-in can be rapidly and fixedly connected with the box body through the fixing base, and the fixing base is exquisite in structural design, simple in machining process, stable in structure and high in installation efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of luggage materials and manufacturing processes, and in particular relates to a telescopic extender for a trolley case and the trolley case. Background Art

[0002] With the vigorous development of modern people's means of transportation, the internal space volume of existing suitcases is fixed and cannot be expanded and adjusted according to the needs of use. In order to solve the above problems, suitcases with expandable capacity have appeared on the market, such as the composite zipper structure of the width-retractable trolley case with application number 201921597841.X, in which two secondary single-sided chain belts are sewn on the left and right sides of the case shell widening cloth, respectively. The case shell widening cloth and the secondary single-sided chain belt on one side are sewn next to the other main single-sided chain belt, while the case shell widening cloth and the secondary single-sided chain belt on one side are sewn around the edge of the other case shell. The existing left and right case shells are hinged by fixed-width cloth strips or hinges, and the width of the cloth strips or hinges is for the commonly used width of the case ( The width when not expanded is fixed, and the box shell widening cloth is limited to the part without cloth strips or hinges. Therefore, when the box shell widening cloth is released, the sewn connection part between the left and right box shells cannot be expanded, resulting in the box body being unable to fully expand. In addition, the existing expandable suitcase has two zippers on the outside when tightened, and it is necessary to avoid cloth strips or hinges when connecting with the box body, which makes the processing difficult. The expandable suitcase has two zippers on the outside when tightened, which often leads to incorrect zipping and inconvenience in use. In addition, the ease of installation and aesthetics of the existing telescopic expander also need to be considered at the same time. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the present invention provides a trolley case telescopic expander and the trolley case thereof. To achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0004] A telescopic expander for a trolley case is used to be fixed on a trolley case body, comprising a sleeve and a plug-in unit, wherein a sliding groove is provided in the sleeve for the plug-in unit to slide, and the plug-in unit comprises a clip that can be inserted into the sliding groove and slide within a limited range, and further comprises a fixing seat, wherein the fixing seat is connected to the sleeve and / or the plug-in unit, and the fixing seat comprises a lower base and an upper base, wherein the lower base and the upper base are detachably connected, and when the lower base and the upper base are connected, the sleeve and / or the plug-in unit are fixed to the trolley case body.

[0005] Furthermore, the lower base is provided with a first connecting hole, the upper base is provided with a plug post, and the plug post is provided inside the second connecting hole. When the lower base and the upper base are connected, the plug post of the upper base is inserted into the first connecting hole.

[0006] Furthermore, the socket and / or plug connected to the fixing seat is provided with a through hole, and when the lower base and the upper base are connected, the plug post of the upper base is inserted into the first connecting hole through the through hole.

[0007] Furthermore, the invention also includes an embedding groove, the through hole is opened in the embedding groove, and the upper base is embedded and installed in the embedding groove.

[0008] Furthermore, the embedding groove and the insert sleeve and / or the insert are integrally formed.

[0009] Furthermore, a socket for inserting the card strip is opened on one side of the slide slot, and the opening range of the socket is smaller than the slide slot.

[0010] Furthermore, the card strip is a sheet-like structure, and is provided with a buckle for limiting the card strip from extending out of the socket.

[0011] Furthermore, the sleeve is provided with at least one notch, which is opened on the bottom surface of the sleeve and communicates with the slide groove.

[0012] A trolley case includes a first case body and a second case body, and also includes the above-mentioned trolley case telescopic expander, wherein the socket and the plug-in are respectively fixed to the first case body and the second case body, and the socket and / or the plug-in are connected to the case body through a fixing seat, and are used to expand the relative position between the first case body and the second case body.

[0013] Furthermore, it also includes fastening bolts. When the lower base and the upper base are connected, the lower base is arranged inside the box body and the upper base is arranged outside the box body, and the fastening bolts lock the lower base and the upper base.

[0014] The utility model relates to a telescopic extender for a trolley case and the trolley case thereof. The case body is connected and extended by the telescopic extender, and the expansion of the case body is achieved by the expansion mechanism and the telescopic extender. During expansion, the telescopic extender can automatically expand as the expansion mechanism changes, thereby improving the convenience of use. During normal use, the telescopic extender can hide the expansion mechanism. The structure is simple and reasonable with good aesthetics. The socket and the plug-in can be quickly fixedly connected to the case body through the fixing seat. The fixing seat has a sophisticated structural design, a simple processing technology, a stable structure, and a fast installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the assembly of the trolley case telescopic extender;

[0016] Figure 2 It is a cross-sectional schematic diagram of the telescopic extender of the trolley case;

[0017] Figure 3 It is a three-dimensional schematic diagram of the telescopic extender of the trolley case;

[0018] Figure 4This is a top view of the telescopic extender for the suitcase;

[0019] Figure 5 It is a structural diagram of a trolley case equipped with a telescopic extender;

[0020] Figure 6 A perspective view of a telescopic extender. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific implementation methods.

[0022] Reference Figures 1 to 5 The illustrated trolley case telescopic extender comprises a sleeve 1, a plug-in 2, and a fixing seat;

[0023] The socket 1 has a slot 11 for the plug 2 to slide in. One side of the slot 11 has a socket 12 for inserting the card strip 21. The opening of the socket 12 is smaller than the slot 11. The socket 1 has at least one notch 13, which is formed on the bottom surface of the socket 1 and communicates with the slot 11. The notch 13 facilitates bending of the socket 1.

[0024] The plug-in 2 includes a clip 21 that can be inserted into the slot 11 and slide within a limited range. The clip 21 is a sheet-like structure and is provided with a buckle 22 that limits the clip from extending out of the socket 12. The clip 21 is inserted into the slot and slides within a limited range.

[0025] The fixing base is connected to the socket 1 and the plug 2. The fixing base includes a lower base 31, an upper base 32, and an embedding groove 33. The lower base 31 and the upper base 32 are detachably connected. The lower base 31 is provided with a first connecting hole 311, and the upper base 32 is provided with a plug post 321. The plug post 321 is provided with a second connecting hole 322. The socket 1 and the plug 2 are respectively provided with embedding grooves 33, and the embedding grooves 33 are provided with through holes 331 for the plug post 321 to pass through. The upper base 32 is embedded and installed in the embedding grooves 33. When the lower base 31 and the upper base 32 are connected, the plug post 321 of the upper base 32 is inserted into the first connecting hole 311 through the through hole 331. When the lower base 31 and the upper base 32 are connected, the plug post 321 of the upper base 32 is inserted into the first connecting hole 311. The socket 1 and the plug 2 are made of flexible materials such as rubber, silicone, and plastic.

[0026] A trolley case 100 includes a first box body 101 and a second box body 102, and also includes the above-mentioned trolley case telescopic expander, the socket 1 and the plug 2 are respectively fixed to the first box body 101 and the second box body 102 through a fixing seat, and are used to expand the relative position between the first box body 101 and the second box body 102, and also includes a fastening bolt 103, the lower base 31 is arranged in the first box body 101 and the second box body 102, and the upper base 32 is arranged outside the first box body 101 and the second box body 102, when the lower base 31 and the upper base 32 are connected, the column 321 of the upper base 32 is inserted into the first connecting hole 311, and the fastening bolt 103 is inserted into the second connecting hole 322 to lock the lower base 31 and the upper base 32.

[0027] When the box is retracted for use, the clip 21 of the plug 2 is inserted into the slide groove 11 of the socket 1. At this time, the first box 101 and the second box 102 are tightened to the minimum state, and the socket 1 slides toward the plug 2 to achieve synchronous tightening. At the same time, the notch 13 facilitates the bending of the socket 1.

[0028] When expansion is required, the chain teeth on the first box body 101 and the second box body 102 are separated, and the relative distance between the first box body 102 and the second box body 102 becomes wider, thereby realizing box expansion. The card strip 21 slides outward from the slide groove 11 and slides within a limited range. When the buckle 22 slides to the end of the socket 12, it reaches the maximum expansion range.

[0029] The utility model provides a telescopic extender for a trolley case and the trolley case thereof, wherein the case body is connected and extended by the telescopic extender, and the expansion of the case body is achieved by the expansion mechanism and the telescopic extender. During expansion, the telescopic extender can automatically expand along with the changes of the expansion mechanism, thereby improving the convenience of use. During normal use, the telescopic extender can hide the expansion mechanism, and the structure is simple and reasonable with good aesthetics. The socket 1 and the plug-in 2 can be quickly fixedly connected to the case body through the fixing seat, and the fixing seat structure is exquisitely designed, the processing technology is simple, the structure is stable, and the installation efficiency is fast.

[0030] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A telescopic extender for a luggage case, used to be fixed to a luggage case body, characterized by: It includes a socket and a plug-in, the socket is provided with a sliding groove for the plug-in to slide, the plug-in includes a card strip that can be inserted into the sliding groove and slide within a limited range, and also includes a fixing seat, the fixing seat is connected to the socket and / or the plug-in, the fixing seat includes a lower base and an upper base, the lower base and the upper base are detachably connected, and when the lower base and the upper base are connected, the socket and / or the plug-in are fixed to the suitcase body.

2. The trolley case telescopic extender according to claim 1, characterized in that: The lower base is provided with a first connecting hole, the upper base is provided with an inserting column, and the inserting column is provided with a second connecting hole. When the lower base and the upper base are connected, the inserting column of the upper base is inserted into the first connecting hole.

3. The trolley case telescopic extender according to claim 2, characterized in that: The socket and / or plug connected to the fixing seat is provided with a through hole, and when the lower base and the upper base are connected, the plug post of the upper base is inserted into the first connecting hole through the through hole.

4. The telescopic extender for a suitcase according to claim 3, characterized in that: It also includes an embedding groove, the through hole is opened in the embedding groove, and the upper base is embedded and installed in the embedding groove.

5. The telescopic extender for a suitcase according to claim 4, characterized in that: The embedding groove is integrally formed with the insert sleeve and / or the insert.

6. The trolley case telescopic extender according to claim 1, characterized in that: A socket for inserting the card strip is provided on one side of the slide slot, and the opening range of the socket is smaller than the slide slot.

7. The trolley case telescopic extender according to claim 6, characterized in that: The card strip is a sheet-like structure and is provided with a buckle for limiting the card strip from extending out of the socket.

8. The telescopic extender for a suitcase according to claim 1, characterized in that: The insert sleeve is provided with at least one notch, which is opened on the bottom surface of the insert sleeve and communicated with the slide groove.

9. A trolley case, comprising a first box body and a second box body, characterized in that: It also includes the trolley case telescopic expander according to any one of claims 1 to 8, wherein the socket and plug-in are respectively fixed to the first box body and the second box body, and the socket and / or plug-in are connected to the box body through a fixing seat, and are used to expand the relative position between the first box body and the second box body.

10. The trolley case according to claim 9, characterized in that: It also includes fastening bolts. When the lower base and the upper base are connected, the lower base is arranged inside the box body and the upper base is arranged outside the box body. The fastening bolts lock the lower base and the upper base.

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