Draw-bar box

Abstract

The utility model discloses a draw-bar box which comprises a box body and a draw bar structure, the box body comprises an upper box body and a lower box body which can be opened and closed, the draw bar structure comprises a fixed rod, a telescopic rod capable of stretching out and drawing back in the fixed rod and a handle connected with the telescopic rod, the fixed rod is arranged in the box body, and at least part of the telescopic rod can stretch out of the box body to be connected with the handle; wherein the fixing rod is provided with a first connecting part and a second connecting part, a first fixing part and a second fixing part are arranged in the box body, and the fixing rod fixes the first connecting part and the second connecting part of the fixing rod to the first fixing part and the second fixing part respectively through fixing pieces and is installed in the box body. The pull rod structure is simple in structure, production operation is simplified, installation efficiency is improved, and manufacturing cost is reduced; and the first connecting part on the fixed rod can limit the telescopic rod mounted on the fixed rod, so that the structural stability of the draw bar of the draw-bar box can be improved.

Description

Technical Field

[0001] The utility model relates to the field of luggage, in particular to a trolley case. Background Art

[0002] In modern travel and daily life, as a convenient carrying tool, the design and function of trolley cases are constantly being improved and optimized.

[0003] However, conventional luggage cases still have some disadvantages in design and use. For example, existing luggage case structures generally have the disadvantage of high manufacturing costs.

[0004] Therefore, in view of the problems existing in the prior art, it is necessary to design a technical solution to solve the above problems. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the purpose of the present invention is to provide a trolley case to solve the above technical problems.

[0006] In order to achieve the purpose, the utility model adopts the following technical solutions:

[0007] A trolley case, comprising

[0008] The box body comprises an upper box body and a lower box body that can be opened and closed; and

[0009] The pull rod structure includes a fixed rod, a telescopic rod that can be extended and retracted within the fixed rod, and a handle connected to the telescopic rod, wherein the fixed rod is disposed in the box body, and the telescopic rod can at least partially extend out of the box body and be connected to the handle;

[0010] The fixing rod is provided with a first connecting portion and a second connecting portion, and the box body is provided with a first fixing portion and a second fixing portion. The fixing rod is installed in the box body by fixing the first connecting portion and the second connecting portion of the fixing rod to the first fixing portion and the second fixing portion respectively through a fixing piece.

[0011] In the utility model, the fixing rod of the pull rod structure is provided with a first connecting portion and a second connecting portion to connect with the box body, and the structure is simple, which simplifies the production operation, improves the installation efficiency, and reduces the manufacturing cost.

[0012] Preferably, the case is provided with an extension hole for the telescopic rod to extend from the case. After the fixing rod is mounted on the case via the first and second connecting portions, one end of the first connecting portion extends into the extension hole, and the end of the first connecting portion is flush with the outer surface of the extension hole. In this way, the telescopic rod can be extended from the case without the first connecting portion protruding from the case, thus ensuring the aesthetics of the case. The first connecting portion is also flush with the extension hole, preventing collision.

[0013] Preferably, the box body is provided with a groove having a shape matching that of the handle, and the handle can be inserted into the groove. Thus, from the surface, the drawbar structure and the box body are integrated into one, and the appearance of the entire drawbar box is very simple and beautiful.

[0014] Preferably, the extension hole communicates with the groove and the interior of the box body, thereby allowing the extension rod to extend or retract in the box body.

[0015] Preferably, when the fixing rod is fixed in the box, the first connecting portion blocks the extension hole, thereby preventing dust or other particles from entering the box through the extension hole and achieving a waterproof effect.

[0016] Preferably, the first connecting portion and the second connecting portion are detachably mounted at both ends of the fixing rod in the length direction, thereby fixing the fixing rod at both ends to make the fixing rod more stable in the box.

[0017] Preferably, the first fixing portion and the second fixing portion are not on the same horizontal plane, thereby fixing the fixing rod at multiple angles to make it more stable.

[0018] Preferably, the first connecting portion and the second connecting portion are both provided with an embedded portion that can be detachably mounted on the fixing rod, thereby facilitating the detachment and installation of the first connecting portion and the second connecting portion on the fixing rod.

[0019] Preferably, the first connecting portion is further provided with a first connecting hole for connecting with the first fixing portion, and the second connecting portion is further provided with a second connecting hole for connecting with the second fixing portion, thereby facilitating the fixing of the first connecting portion to the first fixing portion and the second connecting portion to the second fixing portion.

[0020] Preferably, when the telescopic rod is connected to the fixed rod, the first connecting portion can limit the position of the telescopic rod. Thus, the first connecting portion on the fixed rod can limit the position of the telescopic rod installed on the fixed rod, which can increase the stability of the rod structure of the trolley case. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A three-dimensional drawing of a trolley case in the utility model Figure 1 ;

[0023] Figure 2 A three-dimensional drawing of a trolley case in the utility model Figure 2 ;

[0024] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of position A in the middle;

[0025] Figure 4 It is a three-dimensional diagram of the lower box body of the utility model;

[0026] Figure 5 This is a three-dimensional diagram of the pull rod structure of the utility model;

[0027] Figure 6 It is a three-dimensional diagram of the fixing rod in the present utility model;

[0028] Figure 7 This is a schematic diagram of the decomposition structure of the fixing rod in the utility model

[0029] Figure 8 It is a three-dimensional diagram of the first connecting portion of the present invention;

[0030] Figure 9 It is a three-dimensional diagram of the second connecting portion of the present invention;

[0031] Figure 10 This is a three-dimensional diagram of the pull rod structure of the utility model when it is installed in the lower box;

[0032] Figure 11 for Figure 10 Schematic diagram of the enlarged structure of position B in the middle.

[0033] In the figure: 1. Box body; 11. Upper box body; 12. Lower box body; 14. Combination lock; 15. Groove; 16. Extension hole; 17. First fixing part; 18. Second fixing part; 2. Pull rod structure; 21. Fixing rod; 211. First connecting part; 2111. Connecting protrusion; 2112. First connecting hole; 212. Second connecting part; 2121. Second connecting hole; 213. Embedded part; 22. Telescopic rod; 23. Handle; 3. Universal wheel. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0035] It should be noted that the terms "first," "second," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0036] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0038] In the above description, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0039] like Figures 1 to 11 As shown, a trolley case includes a case body 1 and a trolley structure 2 arranged on the case body 1. A cavity for accommodating objects is provided in the case body 1. The trolley structure 2 is configured to be retractable on the case body 1, so that the user can press the trolley structure 2 back into the case body 1 when not in use. When in use, the trolley structure can be pulled out on the case body 1 for the user to grasp, making it convenient for the customer to drag the case body 1.

[0040] refer to Figure 1 、 Figure 2 The box body 1 includes an upper box body 11 and a lower box body 12 that can be opened and closed with each other. The upper box body 11 and the lower box body 12 are connected by a hinge (not shown). Preferably, the upper box body 11 and the lower box body 12 are shells with an opening on one side. The upper box body 11 and the lower box body 12 are stacked in the vertical direction. The openings of the upper box body 11 and the lower box body 12 are arranged relative to each other to form a cavity that can accommodate objects. The hinge is arranged inside the box body 1 and is located at the side connection between the upper box body 11 and the lower box body 12, so that the upper box body 11 can rotate relative to the lower box body 12, which facilitates the opening or closing of the box body 1.

[0041] Preferably, the upper box body 11 and the lower box body 12 are both made of plastic material, for example, by injection molding.

[0042] The box body 1 is also provided with a password lock 14, which is arranged at the junction of the upper box body 11 and the lower box body 12. The password lock 14 is located on the other side of the box body 1 opposite to the hinge. The box body 1 can be opened and closed by the hinge, and the upper box body 11 and the lower box body 12 can be interlocked by the password lock 14.

[0043] refer to Figure 3 、 Figures 5 to 9The pull rod structure 2 includes a fixed rod 21, a telescopic rod 22 that can be extended and retracted within the fixed rod 21, and a handle 23 connected to the telescopic rod 22. The fixed rod 21 is fixed within the housing 1. When the telescopic rod 22 is retractable within the fixed rod 21, at least a portion of it can be extended outside the housing 1 and connected to the handle 23. The handle 23 is connected to the end of the telescopic rod 22 that extends outside the housing 1. For example, the end of the telescopic rod 22 that extends outside the housing 1 is connected to the handle via a bolt. A control switch can be provided on the handle 23 to control the position of the telescopic rod 22 on the fixed rod 21, allowing the telescopic rod 22 to be extended and retracted to different lengths for user convenience.

[0044] Preferably, reference Figure 1 The box body 1 is also provided with a groove 15, the shape of the groove 15 is adapted to the shape of the handle 23. When the telescopic rod 22 is retracted into the fixed rod 21, the handle 23 connected to the telescopic rod 22 can be embedded in the groove 15. From the surface of the box body 1, the pull rod structure 2 and the box body 1 are combined into one, and the appearance of the entire pull rod box is very simple and beautiful.

[0045] The fixing rod 21 is arranged on the lower box body 12 of the box body 1, wherein the fixing rod 21 is arranged on the inner side of the lower box body 12, and the fixing rod 21 is arranged at the top of the lower box body 12 (that is, close to the position of the upper box body 11). There are two fixing rods 21, which are arranged opposite to each other on the inner side of the lower box body 12. There are also two telescopic rods 22, which are respectively installed on the two fixing rods 21 and can be telescopic. The handle 23 is connected between the two telescopic rods 22, so that a roughly N-shaped structure is formed between the telescopic rod 22 installed on the fixed rod 21 and the handle 23, which is convenient for pulling the pull rod structure 2 to drag the box body 1.

[0046] Fixed rod 21 and telescopic rod 22 are rigid basically, promptly it can not take place obvious deformation when bearing the usual working load of expected use.Preferably, fixed rod 21 and telescopic rod 22 are made of metal material, for example aluminium, perhaps, are made of steel.

[0047] The two ends of the fixing rod 21 in the length direction are respectively connected to the first connecting part 211 and the second connecting part 212. The first fixing part 17 and the second fixing part 18 are provided in the box body 1. The fixing rod 21 is installed in the box body 1 by fixing parts (not shown) to fix the first connecting part 211 and the second connecting part 212 of the fixing rod 21 to the first fixing part 17 and the second fixing part 18 respectively.

[0048] Specifically, in this embodiment, the first connecting portion 211 is an internal hollow connecting joint. When the first connecting portion 211 is installed at the end of the fixed rod 21 in the longitudinal direction, it can allow the telescopic rod 22 to pass through without affecting the telescopic rod 22's extension and retraction on the fixed rod 21. When the telescopic rod 22 is connected to the first connecting portion 211, it can also limit the telescopic rod 22, preventing the telescopic rod 22 from acting on the fixed rod 21 when subjected to force, causing the fixed rod 21 to loosen between the box body 1, significantly improving the connection strength and stability between the pull rod structure 2 and the box body 1. The side of the first connecting portion 211 is provided with a connecting protrusion 2111, and the connecting protrusion 2111 is provided with a first connecting hole 2112, which can cooperate with the fixing member for fixation.

[0049] Preferably, the first connection hole 2112 is a screw hole, and the fixing member is a bolt. The first connection portion 211 can be fixed by the cooperation between the bolt and the screw hole.

[0050] refer to Figure 3 、 Figure 10 and Figure 11 In some embodiments, an extension hole 16 is provided between the groove 15 and the inner cavity of the lower box body 12. The position of the extension hole 16 corresponds to the position of the fixed rod 21 in the lower box body 12. When the fixed rod 21 is installed in the lower box body 12, the telescopic rod 22 installed on the fixed rod 21 can be extended through the extension hole 16.

[0051] Preferably, the extension hole is located in the groove, and the outer surface of the extension hole is flush with the bottom surface of the groove.

[0052] Preferably, the size of the end of the first connecting portion 211 is slightly smaller than the size of the extension hole 16, so that the end of the first connecting portion 211 can extend into the extension hole 16, blocking the extension hole 16, and preventing dust or other particles from entering the box body 1 through the extension hole 16; and the size of the portion of the first connecting portion 211 having the connecting protrusion 2111 is much larger than the size of the extension hole 16, so that the first connecting portion 211 cannot extend completely out of the extension hole 16. When the fixing rod 21 is installed in the lower box body 12, the end of the first connecting portion 211 extending into the extension hole 16 is flush with the outer surface of the extension hole 16, that is, flush with the bottom surface of the groove, and the end of the first connecting portion 211 roughly closes the extension hole 16.

[0053] The second connecting portion 212 is a closed joint that, when connected to the other end of the fixing rod 21 in the longitudinal direction, closes that end of the fixing rod 21. A second connecting hole 2121 is provided on the end of the second connecting portion 212 not connected to the fixing rod 21. When the fixing rod 21 is installed in the lower housing 12, the second connecting hole 2121 corresponds to the position of the second fixing portion 18. By fastening the second connecting portion 212 to the second fixing portion 18, the fixing rod 21 is secured in the lower housing 12.

[0054] Preferably, a fixing screw hole can be provided on the second fixing portion 18 , the fixing piece can be a bolt, the second connecting hole 2121 can be a screw hole or a through hole, and the fixing piece passes through the second connecting hole 2121 and cooperates with the fixing screw hole to fix the second connecting portion 212 in the lower box body 12 .

[0055] In some embodiments, the first connecting portion 211 and the second connecting portion 212 are detachable at both ends of the fixing rod 21 .

[0056] The fixing rod 21 is a long, hollow rectangular rod. The first connecting portion 211 and the second connecting portion 212 are each provided with an inserting portion 213 that matches the shape of the end of the fixing rod 21. The first connecting portion 211 and the second connecting portion 212 are connected to the fixing rod 21 through the inserting portion 213, thereby enabling the first connecting portion 211 and the second connecting portion 212 to be removed and installed from the fixing rod 21. Preferably, the inserting portion 213 is a protrusion that can be inserted into the end of the fixing rod 21. Its shape matches the end of the fixing rod 21, and when inserted into the end of the fixing rod 21, it can be fixed by friction fit.

[0057] Alternatively, in some other embodiments, the first connection portion 211 and the second connection portion 212 are not detachable at both ends of the fixing rod 21. For example, the first connection portion 211 and the second connection portion 212 are both installed at the ends of the fixing rod 21 through the embedding portion 213 and then glued together.

[0058] The first connecting portion 211 and the second connecting portion 212 are fixed by the fixing member in different directions, and the fixing rod 21 is fixed at multiple angles to make it more stable. Preferably, when the first connecting portion 211 and the second connecting portion 212 are fixed, their fixing directions are perpendicular to each other, so that the first connecting portion 211 and the second connecting portion 212 of the fixing rod 21 are fixed in two directions respectively, making the fixing of the fixing rod 21 more stable.

[0059] For example, in this embodiment, the first fixing portion 17 is an extension plate extending from the groove 15 of the lower box body 12 in the box body 1, and is provided with a screw hole. The first connecting portion 211 can be fixed to the first fixing portion 17 by passing a bolt through the screw hole in the vertical direction (the height direction of the box body 1) and then connected to the first connecting hole 2112; the second fixing portion 18 is a protrusion protruding from the inner wall of the lower box body 12, and a screw hole is also provided on the protrusion. The second connecting portion 212 can be fixed to the second fixing portion 18 by passing a bolt through the second connecting hole 2121 in the horizontal direction (the width direction of the box body 1) and then connected to the screw hole, thereby completing the fixation of the fixing rod 21.

[0060] Preferably, in the lower box body 12 , the first fixing portion 17 and the second fixing portion 18 are not in the same horizontal direction.

[0061] Preferably, the first connection portion 211 and the second connection portion 212 are both made of plastic material, for example, by injection molding.

[0062] Alternatively, in some other embodiments, the first connection portion 211 and the second connection portion 212 may be made into a whole with the fixing rod 21 , and the first connection portion 211 and the second connection portion 212 may be made of the same material as the fixing rod 21 .

[0063] The control switch on the handle 23 for controlling the telescopic rod 22 to extend and retract within the fixed rod 21 is prior art and will not be described here.

[0064] The box body 1 further includes universal wheels 3 , which are arranged on the bottom of the box body 1 . When the box body 1 is placed on the ground, the user can push the box body 1 to move through the universal wheels 3 .

[0065] Preferably, four universal wheels 3 are provided, and the four universal wheels 3 are respectively located at the four bottom corners of the bottom of the substantially square box 1 , so that the box 1 can be balanced and supported by the four universal wheels 3 .

[0066] In the utility model, the fixed rod of the pull rod structure is provided with a first connecting part and a second connecting part to be connected to the box body. Its structure is simple, which simplifies the production operation, improves the installation efficiency, and reduces the manufacturing cost; and the first connecting part on the fixed rod can limit the telescopic rod installed on the fixed rod, which can increase the stability of the pull rod structure of the pull rod box.

[0067] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A trolley case, characterized in that: include The box body comprises an upper box body and a lower box body that can be opened and closed; and The pull rod structure includes a fixed rod, a telescopic rod that can be extended and retracted within the fixed rod, and a handle connected to the telescopic rod, wherein the fixed rod is disposed in the box body, and the telescopic rod can at least partially extend out of the box body and be connected to the handle; The fixing rod is provided with a first connecting portion and a second connecting portion, and the box body is provided with a first fixing portion and a second fixing portion. The fixing rod is installed in the box body by fixing the first connecting portion and the second connecting portion of the fixing rod to the first fixing portion and the second fixing portion respectively through a fixing piece.

2. A trolley case according to claim 1, characterized in that: The box body is provided with an extension hole for the telescopic rod to extend from the box body. After the fixing rod is installed in the box body through the first connecting part and the second connecting part, one end of the first connecting part extends into the extension hole, and the end portion of the first connecting part is flush with the outer surface of the extension hole.

3. A trolley case according to claim 2, characterized in that: The box body is provided with a groove whose shape matches that of the handle, and the handle can be embedded in the groove.

4. A trolley case according to claim 3, characterized in that: The extension hole communicates with the groove and the interior of the box.

5. The trolley case according to claim 2, characterized in that: When the fixing rod is fixed in the box, the first connecting portion blocks the extension hole.

6. A trolley case according to any one of claims 1 to 5, characterized in that: The first connecting portion and the second connecting portion are detachably mounted on both ends of the fixing rod in a length direction.

7. A trolley case according to any one of claims 1 to 5, characterized in that: The first fixing portion and the second fixing portion are not on the same horizontal plane.

8. The trolley case according to any one of claims 1 to 5, characterized in that: The first connecting portion and the second connecting portion are both provided with an embedding portion that can be detachably mounted on the fixing rod.

9. The trolley case according to any one of claims 1 to 5, characterized in that: The first connecting portion is further provided with a first connecting hole for connecting with the first fixing portion, and the second connecting portion is further provided with a second connecting hole for connecting with the second fixing portion.

10. The trolley case according to any one of claims 1 to 5, characterized in that: When the telescopic rod is connected to the fixed rod, the first connecting portion can limit the position of the telescopic rod.

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