Draw-bar box

Abstract

The utility model provides a draw-bar box which comprises a shell and a cover body, the front side of the cover body is connected with the shell, the cover body can be opened and closed, and the shell is provided with a box lock. The lower side edge of the cover body is rotationally connected with the shell, the upper side edge of the cover body is provided with a long-strip-shaped lock catch piece, one end of the long-strip-shaped lock catch piece is movably connected with the cover body, and an annular lock catch ring at the other end is inserted into a luggage lock for locking. The key lies in that the left side edge and the right side edge of the cover body are connected with the shell through pull ropes, and the pull ropes extend along the side edges in an S shape and penetrate through corresponding first connecting holes and second connecting holes in the cover body and the shell for multiple times. The retracting and releasing device adopts the existing rotary automatic shoelace tying device, is arranged in the middle of the upper side of the cover body and is used for retracting and releasing the pull rope, so that the cover body is stably opened and closed, and the safety and the practicability of the draw-bar box are comprehensively improved.

Description

Technical Field

[0001] This utility model relates to the field of trolley case technology, and specifically to a trolley case. Background Technology

[0002] An existing type of trolley case includes two shells, front and back. The front shell has a cover that can be opened and closed on its front side. The lower side of the cover is rotatably connected to the shell. The other sides of the cover are connected to the shell by a zipper, and the zipper handle can be connected to a lock on the shell.

[0003] The zipper mechanism requires pulling the zipper to open the lid after the handle is separated from the lock, making the operation rather cumbersome.

[0004] Without a zipper, the lid is only rotatably connected to the shell on one side, and the other side is connected to the shell and the lock via a handle. In this connection structure, the other two sides of the lid are not fixedly connected to the shell, which means that it can be pried open and a hand can be inserted. This problem is more serious on large suitcases. Summary of the Invention

[0005] In view of the problems pointed out in the background art, this utility model proposes a trolley case to solve the above-mentioned technical problems.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A rolling suitcase includes a shell, a cover that can be opened and closed is connected to the front side of the shell, and a lock is provided on the shell;

[0008] One side of the cover is rotatably connected to the shell, and the other side of the cover is provided with a locking fastener that can be locked to a bag lock;

[0009] The side where the locking mechanism is located and the side where the cover is rotatably connected to the housing are the two opposite sides on the cover;

[0010] The other two sides of the cover are connected to the shell by pull ropes;

[0011] It also includes a winding and releasing device that can wind and release the pull rope, which enables the cover to open and close by winding and releasing the pull rope.

[0012] The present invention is further configured such that the pull rope extends in an S-shape along the length of the side of the cover and passes through the cover and the shell multiple times;

[0013] One end of the pull rope is fixedly connected to the retraction device, and the other end of the pull rope extends to the side where the cover and the shell are rotatably connected. The other end of the pull rope is fixedly connected to the cover or the other end of the pull rope is fixedly connected to the shell or the other ends of the pull ropes on both sides of the cover are connected to each other.

[0014] The present invention is further configured such that multiple connecting holes 1 are provided on the other two sides of the cover, the connecting holes 1 on the same side are spaced apart along the length of the side, and the shell is provided with connecting holes 2 corresponding to the connecting holes 1. The pull ropes on both sides of the cover pass through the multiple corresponding connecting holes 1 and connecting holes 2 respectively.

[0015] The present invention is further configured such that the retractable device is disposed on the cover, and the retractable device is located in the middle position on the side where the locking element is located.

[0016] The present invention is further configured such that the edge of the cover is provided with an inwardly protruding rim, and the shell is provided with a retaining ring corresponding to the rim.

[0017] The present invention is further configured such that the first connecting hole is located on the perimeter and the second connecting hole is located on the retaining ring.

[0018] The present invention is further configured such that one side of the cover is rotatably connected to the shell by a flexible sheet.

[0019] The present invention is further configured such that the housing is composed of a front housing and a rear housing that can be opened and closed, and the cover is disposed on the front housing.

[0020] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0021] The trolley case provided by this utility model has a lid that is fixedly connected to the opposite two sides, and is fixedly connected to the other two sides by a pull rope. The pull rope can be wound and released by a winding and releasing device to correspond to the opening and closing of the lid, so as to solve the problem that the lid and the shell are easily pried up and that hands can be put in. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is an exploded view of the present invention. Figure 1 .

[0025] Figure 3 This is an exploded view of the present invention. Figure 2.

[0026] The following are the labels in the attached diagram: 1. Shell; 2. Cover; 3. Lock; 4. Buckle; 5. Pull cord; 6. Connecting hole 1; 7. Connecting hole 2; 8. Edge; 9. Retaining ring; 10. Sheet; 11. Front shell; 12. Rear shell; 13. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] For reference as follows Figures 1-3 The present invention will be described as follows:

[0029] Example: As a commonly used storage tool for people traveling, the structural design of a rolling suitcase is related to its safety and convenience. This particular rolling suitcase mainly consists of a shell 1, a lid 2, a lock 3, a fastener 4, a pull rope 5, and a folding / unfolding device 6.

[0030] A rolling suitcase includes a shell 1 that provides space for internal storage. An openable and closable lid 2 is connected to the front of the shell 1, allowing the lid 2 to be opened and closed relative to the shell 1, facilitating the user's access to items. A lock 3 is provided on the shell 1, a key component for ensuring the safety of the items inside.

[0031] The lower side of the lid 2 is rotatably connected to the shell 1, allowing the lid 2 to rotate and open like a door. The upper side of the lid 2 is equipped with a locking element 4 that can be locked to the luggage lock 3. The locking element 4 is elongated, with one end connected to the lid 2 in a movable manner, giving it a certain degree of freedom of movement for easy operation. At the other end of the locking element 4 is a ring-shaped locking ring. When the suitcase needs to be closed, the locking ring is inserted into the luggage lock 3, which then locks the lid 2 securely to the shell 1, preventing accidental opening and ensuring the safety of the contents. Both the luggage lock 3 and the locking element 4 are existing mature technologies. The luggage lock 3 is a common type in the suitcase industry and is widely used in many suitcase products. The locking element 4 has a structure similar to a zipper handle, making it familiar and easy for users to operate.

[0032] The left and right sides of the lid 2 are connected to the outer shell 1 by pull ropes 5. The pull ropes 5 play a crucial supplementary role in the structural stability of the entire suitcase. Previous suitcase designs typically focused only on fixing the top and bottom sides of the lid 2, relying on the rotating connection of the lower side and the engagement of the lock and latch on the upper side. However, this conventional design has significant flaws. In practical use, others can easily use tools to pry open the left and right sides of the lid. Once pried open, hands can easily reach inside and steal items, posing a significant risk of property loss to the user.

[0033] It also includes a winding and releasing device 6 that can wind and release the pull rope 5, which enables the cover 2 to be opened and closed by winding and releasing the pull rope 5.

[0034] When the lid 2 needs to be opened, operate the retractable device 6 to release the pull cord 5. With the pull cord 5 slack, the lid 2 can be smoothly opened by rotating it from its lower side. When closing the lid 2, retract the pull cord 5 using the retractable device 6. The pull cord 5 tightens, gradually securing the left and right sides of the lid 2 to the shell 1, causing the lid 2 to close gradually. This allows the locking ring of the locking element 4 to align with and insert into the luggage lock 3, completing the upper side locking. In this way, all four sides of the lid 2 are effectively secured, comprehensively strengthening the connection stability between the lid 2 and the shell 1, greatly improving the safety of the suitcase, and effectively solving the safety hazards of the lid being easily pried open and allowing hands to reach inside.

[0035] The pull cord 5 extends in an S-shape along the length of the left and right sides of the cover 2. This S-shape allows the pull cord 5 to maximize the contact points with the cover 2 and the shell 1 within the limited side space, thereby improving the stability of the connection. Moreover, the pull cord 5 passes through the cover 2 and the shell 1 multiple times, and each pass acts like a "safety lock" between the cover 2 and the shell 1, making the connection between the two even tighter.

[0036] The retractable device 6 is located on the lid 2, specifically in the middle of the upper side of the lid 2. This position has several advantages. Firstly, it is on the central axis of the lid 2, allowing for a more even application of force to the pull rope 5 on both sides of the lid 2 when the retractable device 6 is operated to wind or release it, preventing instability such as tilting of the lid 2 due to uneven force. Secondly, its middle position on the upper side makes it convenient for users to operate when opening and closing the suitcase, conforming to ergonomic principles.

[0037] One end of the pull rope 5 is fixedly connected to the retracting device 6, and the other end of the pull rope 5 extends to the lower side of the cover 2. The other end of the pull rope 5 is fixedly connected to the cover 2, or the other end of the pull rope 5 is fixedly connected to the shell 1, or the other ends of the pull ropes 5 on the left and right sides of the cover 2 are connected to each other.

[0038] One end of the pull cord 5 is fixedly connected to the retraction device 6, which is the basis for the controllable retraction of the pull cord 5. The other end of the pull cord 5 can be connected in several ways. It can extend to the lower side of the cover 2 and be fixedly connected to the cover 2. In this way, the pull cord 5 forms a closed loop structure that starts from the retraction device 6 in the middle of the upper side of the cover 2, extends along the side in an S-shape, and is finally fixed to the lower side of the cover 2, which further enhances the integrity of the cover 2 itself.

[0039] Alternatively, the other end of the pull rope 5 can be fixedly connected to the housing 1. This connection method allows the pull rope 5 to directly and tightly "tie" the cover 2 and the housing 1 together, enhancing the connection between the two.

[0040] In another scenario, the other ends of the pull ropes 5 on the left and right sides of the cover 2 are connected to each other. When the ends of the pull ropes 5 on both sides are connected, they can work together to form an inward pulling force on the cover 2 in the left and right directions, preventing the left and right sides of the cover 2 from expanding outward or being pried up.

[0041] To better connect the pull cord 5 to the cover 2 and the shell 1, multiple connection holes 7 are provided on the left and right sides of the cover 2. These connection holes 7 are spaced apart along the length of the side, allowing the pull cord 5 to pass through at different positions to adapt to the S-shaped extension path and ensure that the pull cord 5 fits tightly against the side throughout. At the same time, the shell 1 has connection holes 8 corresponding to the connection holes 7. The pull cord 5 on the left and right sides of the cover 2 passes through the multiple corresponding connection holes 7 and connection holes 8. This one-to-one perforation method allows the pull cord 5 to precisely connect the cover 2 and the shell 1 together, like a finely woven net, firmly fixing the cover 2 and the shell 1 and providing a solid guarantee for the safe use of the suitcase.

[0042] The lid 2 has an inwardly protruding rim 9 along its edge, and the shell 1 has a corresponding retaining ring 10. When the lid 2 is closed, the retaining ring 10 on the shell 1 precisely abuts against the rim 9. This abutting design mechanism is significant, as it fundamentally limits the possibility of the lid 2 moving inward into the shell 1, effectively preventing problems such as item compression or damage caused by excessive inward indentation of the lid 2, or disruption of the internal structure of the bag, thus ensuring the stability of the internal storage space and a safe storage environment for items.

[0043] Connection hole 7 is located on the perimeter 9, and connection hole 8 is located on the retaining ring 10. This arrangement allows the pull rope 5 to be hidden inside after the cover 2 is closed, preventing the pull rope 5 from being exposed.

[0044] One side of the cover 2 is rotatably connected to the shell 1 via a flexible sheet 11. This abandons the traditional rigid connection method, employing a flexible sheet 11 to achieve the rotatable connection. The sheet 11 is elongated and extends along the left-right direction, and its material selection is wide, including leather and fabric. The advantages of this flexible connection are obvious: it gives the cover 2 more flexible rotational characteristics relative to the shell 1, allowing users to experience a smoother and easier operation when opening and closing the cover 2, without having to overcome significant resistance.

[0045] The housing 1 consists of a front housing 12 and a rear housing 13 that can be opened and closed, and the cover 2 is disposed on the front housing 12.

[0046] In the design of this suitcase, the retraction device 6 plays a crucial role. It is directly responsible for the winding and releasing of the pull rope 5, thereby controlling the opening and closing state of the lid 2. It is worth noting that the retraction device 6 uses an existing rotary automatic shoelace device.

[0047] Several mature products with similar functions already exist on the market, such as the shoelace retractor disclosed in patent publication number CN207075651U. This type of shoelace retractor is widely used in athletic shoes and other footwear products. It primarily relies on a rotation mechanism to automatically retract and unwind the shoelaces. Its internal structure typically includes a rotating core component. When the user rotates this component in a specific direction, the shoelaces are gradually retracted, securing the shoe; conversely, rotating it in the opposite direction releases the shoelaces, making it easier to put on and take off.

[0048] Another example is the automatic shoelace rotating buckle disclosed in patent CN207322825U.

[0049] Let's look at the rotating shoelace lacing device disclosed in the patent with patent authorization announcement number CN202635798U.

[0050] Given that these existing rotary automatic shoelace lacing devices are mature, versatile, and readily available on the market, the specific structure of the retraction device 6 will not be described in detail in this application for the suitcase, to avoid duplication of effort and to focus on core innovations. When assembling or repairing the suitcase, users only need to follow the product instructions, select the appropriate existing rotary automatic shoelace lacing device, and install it in the middle position on the upper side of the lid 2. This allows for convenient retraction and extension of the pull rope 5, ensuring stable opening and closing of the suitcase lid 2. This not only simplifies the suitcase development process but also fully utilizes existing technological resources, enabling the product to be launched to the market more quickly and meet consumer needs.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A trolley case, comprising a case body, a front side of the case body being connected with an openable and closable cover body, the case body being provided with a case lock; one side edge of the cover body is rotationally connected with the case body, and the other side edge of the cover body is provided with a lock catch capable of being locked with the case lock; the side where the lock catch is located and the side where the cover body is rotationally connected with the case body are opposite sides of the cover body; characterized in that the other two side edges of the cover body are respectively connected with the case body through a drawstring; the trolley case further comprises a winding and releasing device capable of winding and releasing the drawstring, and the winding and releasing device enables the cover body to be opened and closed through winding and releasing operation of the drawstring.

2. The trolley case according to claim 1, characterized in that: the drawstring extends in an S shape along the length direction of the side edge of the cover body and passes through the cover body and the case body multiple times; one end of the drawstring is fixedly connected with the winding and releasing device, and the other end of the drawstring extends to the side where the cover body is rotationally connected with the case body, and the other end of the drawstring is fixedly connected with the cover body or the other end of the drawstring is fixedly connected with the case body or the other ends of the drawstrings on the two side edges of the cover body are connected with each other.

3. The wheeled duffel bag of claim 2, wherein: a plurality of connecting holes one are respectively provided on the other two side edges of the cover body, the connecting holes one on the same side edge are arranged at intervals along the length direction of the side edge, the case body is provided with connecting holes two corresponding to the connecting holes one, and the drawstrings on the two side edges of the cover body pass through the corresponding connecting holes one and the connecting holes two respectively.

4. The wheeled duffel bag of claim 3, wherein: the winding and releasing device is arranged on the cover body and is located at the middle position of the side where the lock catch is located.

5. The wheeled duffel bag of claim 4, wherein: the edge of the cover body is provided with an inwardly protruding surrounding edge, and the case body is provided with a stop ring corresponding to the surrounding edge.

6. The wheeled duffel bag of claim 4, wherein: the connecting holes one are arranged on the surrounding edge, and the connecting holes two are arranged on the stop ring.

7. The wheeled duffel bag of claim 1, wherein: one side edge of the cover body is rotationally connected with the case body through a flexible sheet material.

8. The wheeled duffel bag of claim 1, wherein: the case body is composed of an openable and closable front case body and a rear case body, and the cover body is arranged on the front case body.

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