A large capacity portable case

Abstract

The utility model discloses a kind of high-capacity portable luggage, comprising: box, the box inside has the containing cavity of accomodating article, universal wheel is provided at the four corners of the box bottom;Pull rod assembly, the pull rod assembly includes the pull rod seat of being set in the back of box, the bottom end of the pull rod seat can be relatively box pitch rotation, the inside of the pull rod seat is provided with telescopic pull rod;Locking assembly, the locking assembly includes the rotating seat of being installed on the box, the bottom end of the pull rod seat is rotatably connected in rotating seat top surface, the top wall of the rotating seat is slidably installed with plug rod, the bottom end of the pull rod seat is provided with the insertion hole for plug rod insertion, the inside of the rotating seat is provided with adjusting piece for controlling plug rod insertion insertion hole inside.The utility model of a kind of high-capacity portable luggage, can flexibly adjust pull rod angle according to use demand, reduce the additional burden brought by box inclination, improve use convenience and comfort degree.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a large-capacity portable luggage. Background Technology

[0002] In modern travel scenarios, large-capacity portable bags have become essential tools for business trips, vacations, and other activities because they can meet people's needs for carrying multiple items such as clothing and daily necessities. The convenience of these bags largely depends on their pull rod structure. Users can move the bag by pulling the rod and applying force, effectively reducing the burden of carrying it.

[0003] However, most large-capacity portable bags on the market currently have fixed-angle handles, meaning the angle between the handle and the bag body is not adjustable. When a user pulls the bag, to ensure the handle is in a tilted position for easy gripping and to maintain overall stability and prevent tipping, the bag needs to be tilted. This changes the bag's center of gravity to accommodate the force applied to the handle. Because the bag is tilted, its own weight generates a component force perpendicular to the ground. When pulling the bag, the user not only has to overcome the friction between the bag and the ground but also the resistance from this component force. Essentially, work is being done on the bag's weight. For large-capacity bags, the weight of the contents is already significant, making this extra work even more pronounced. This means that users' arms and shoulders bear a considerable load when pulling the bag for extended periods, affecting travel comfort and convenience, and causing inconvenience. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a large-capacity portable bag that allows for flexible adjustment of the pull rod angle according to usage needs, reducing the extra burden caused by tilting the bag and improving ease of use and comfort.

[0005] A large-capacity portable bag according to an embodiment of the present utility model includes:

[0006] The box has an internal cavity for storing items, and casters are provided at the four corners of the bottom of the box.

[0007] A pull rod assembly, the pull rod assembly including a pull rod seat disposed on the back of the box, the bottom end of the pull rod seat being able to tilt and rotate relative to the box, and a telescopic pull rod being disposed inside the pull rod seat;

[0008] The locking assembly includes a rotating seat mounted on the housing, a pull rod seat whose bottom end is rotatably connected to the top surface of the rotating seat, a plug rod slidably mounted on the top wall of the rotating seat, a plug hole for inserting the plug rod at the bottom end of the pull rod seat, and an adjusting component for controlling the insertion of the plug rod into the plug hole inside the rotating seat.

[0009] According to an embodiment of the present utility model, a large-capacity portable bag includes an adjusting screw rotatably mounted inside a rotating seat. A wedge-shaped slider is threaded onto the adjusting screw. The bottom end of the insert rod has an inclined surface adapted to the wedge-shaped slider, and the inclined surface at the bottom end of the insert rod abuts against the inclined surface of the wedge-shaped slider.

[0010] According to an embodiment of the present utility model, a large-capacity portable bag has a knob rotatably mounted on the front of the rotating base, and one end of the adjusting screw is connected to the knob.

[0011] According to an embodiment of the present invention, a large-capacity portable bag is provided, wherein a guide rod is installed inside the rotating base, the guide rod is parallel to the adjusting screw, and the wedge-shaped slider is slidably connected to the guide rod.

[0012] According to an embodiment of the present utility model, a large-capacity portable bag is provided with a return spring sleeved on the outer wall of the insertion rod. The bottom end of the return spring is connected to the outer wall of the insertion rod, and the top end of the return spring is connected to the inner top wall of the rotating seat. In the initial state, the insertion rod has a tendency to slide away from the pull rod seat.

[0013] According to an embodiment of the present utility model, a large-capacity portable bag is provided with a hinge shaft on the top surface of the rotating base, and the pull rod base is rotatably connected to the rotating base through the hinge shaft.

[0014] According to an embodiment of the present utility model, a large-capacity portable bag is provided with support feet on the side wall of the bag body, and the support feet are arranged symmetrically in pairs, totaling four.

[0015] According to an embodiment of the present utility model, a large-capacity portable bag is provided on the back of the bag body, the receiving groove is recessed on the bag body, and the pull rod seat and the rotating seat are both installed inside the receiving groove.

[0016] According to an embodiment of the present utility model, a large-capacity portable bag is provided on the bag body for controlling its opening and closing, and the bag body is also provided with a protective folded edge for covering and protecting the zipper.

[0017] According to an embodiment of the present utility model, a large-capacity portable bag is provided on the bag body, and multiple handles are provided, which are distributed on the outer surface of different sides of the bag body.

[0018] A large-capacity portable bag according to an embodiment of the present utility model has at least the following beneficial effects:

[0019] This utility model, by setting a hinged structure between the pull rod seat and the rotating seat, combined with the cooperation of the adjusting screw, wedge slider and plug in the locking assembly, and the automatic reset function of the return spring, can accurately adjust the angle of the pull rod according to the user's needs. Structurally, it avoids the box from tilting excessively due to the fixed angle of the pull rod, thereby eliminating the additional gravitational force caused by tilting.

[0020] This invention, through the coordinated action of a pull rod base, a rotating base, and an adjusting screw, ensures both the stability and reliability of the pull rod angle adjustment process and improves operational convenience. This design fundamentally reduces the gravitational load that users need to overcome when pulling the bag, significantly reducing fatigue caused by prolonged pulling.

[0021] This utility model features a storage groove for the pull rod seat and rotating seat, which prevents the pull rod assembly from being damaged by collisions when not in use. The protective folding edge covers the zipper, reducing dust and moisture intrusion and protecting the opening and closing parts. The support feet contact the ground to prevent direct friction between the case and the ground. Through the synergistic effect of multiple protective structures, the wear rate of various parts of the case is effectively reduced, and the overall service life is extended.

[0022] This utility model provides users with diverse carrying options by setting up multiple handles, adapting to different scenarios such as short-distance lifting and going up and down stairs. Combined with the storage slot for the pull rod assembly, it saves space when storing the bag, keeps it stable when stationary thanks to the support feet, and allows for flexible adjustment based on the pull rod assembly when moving. It achieves good adaptability in all scenarios such as moving, stationary, and storage, significantly improving the flexibility of use.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of 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.

[0025] Figure 1 This is a structural schematic diagram of a large-capacity portable bag according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1A rear view structural diagram of a large-capacity portable bag is shown;

[0027] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure at point A in a large-capacity portable bag.

[0028] Figure 4 for Figure 1 The diagram shows a cross-sectional view of a locking mechanism in a large-capacity portable bag.

[0029] In the diagram: 1. Box body; 2. Zipper; 3. Handle; 4. Telescopic pull rod; 5. Casters; 6. Support feet; 7. Protective folded edge; 8. Pull rod base; 9. Rotating base; 10. Knob; 11. Receiving groove; 12. Adjusting screw; 13. Guide rod; 14. Wedge slider; 15. Hinge shaft; 16. Insertion hole; 17. Insert rod; 18. Return spring. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, this is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] A large-capacity portable bag according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0035] Reference Figures 1-4 The present invention aims to provide an embodiment of a large-capacity portable bag.

[0036] In this embodiment, the large-capacity portable bag mainly includes a case body 1, a pull rod assembly, and a locking assembly.

[0037] The box 1 has an internal cavity for storing items, and casters 5 are installed at the four corners of the bottom of the box 1.

[0038] The pull rod assembly includes a pull rod seat 8 located on the back of the box 1. The bottom end of the pull rod seat 8 can tilt and rotate relative to the box 1. A telescopic pull rod 4 is provided inside the pull rod seat 8.

[0039] The locking assembly includes a rotating seat 9 mounted on the housing 1, a pull rod seat 8 rotatably connected to the top surface of the rotating seat 9 at its bottom end, a plug rod 17 slidably mounted on the top wall of the rotating seat 9, a plug hole 16 for inserting the plug rod 17 at the bottom end of the pull rod seat 8, and an adjustment component for controlling the insertion of the plug rod 17 into the plug hole 16 inside the rotating seat 9.

[0040] It is easy to understand that this embodiment achieves item storage by setting up a receiving cavity, and the four universal wheels 5 at the bottom corners provide basic support for movement. In the pull rod assembly, the bottom end of the pull rod seat 8 achieves pitch rotation relative to the box body 1 through the rotating seat 9, and the telescopic pull rod 4 can extend and retract within the pull rod seat 8 to adapt to gripping needs. The locking assembly achieves angle fixation by inserting the plug 17 into the plug hole 16 of the pull rod seat 8, and the adjusting component controls the insertion and removal state of the plug 17, thereby completing the adjustment and locking of the pull rod angle.

[0041] In some specific embodiments of this utility model, the adjusting component may include an adjusting screw 12 rotatably installed inside the rotating seat 9, a wedge-shaped slider 14 threadedly connected to the adjusting screw 12, and an inclined surface adapted to the wedge-shaped slider 14 at the bottom end of the insert rod 17, with the inclined surface at the bottom end of the insert rod 17 abutting against the inclined surface of the wedge-shaped slider 14.

[0042] It is easy to understand that in this embodiment, by setting the adjusting screw 12, the wedge-shaped slider 14 can be driven to slide along the screw axis. The inclined surface of the wedge-shaped slider 14 cooperates with the inclined surface of the bottom end of the insertion rod 17. The displacement of the slider pushes the insertion rod 17 to move up and down, so as to realize the insertion and removal of the insertion rod 17 and the insertion hole 16.

[0043] In some specific embodiments of this utility model, a knob 10 can be rotatably mounted on the front of the rotating seat 9, and one end of the adjusting screw 12 is connected to the knob 10.

[0044] It is easy to understand that in this embodiment, the knob 10 is connected to the adjusting screw 12. The user can directly drive the adjusting screw 12 to rotate by turning the knob 10, thereby controlling the movement of the wedge slider 14 and the insertion rod 17.

[0045] In some specific embodiments of this utility model, a guide rod 13 can be installed inside the rotating seat 9, the guide rod 13 is parallel to the adjusting screw 12, and the wedge-shaped slider 14 is slidably connected to the guide rod 13.

[0046] It is easy to understand that in this embodiment, by setting the guide rod 13 and the adjusting screw 12 to be parallel, the wedge-shaped slider 14 slides along the guide rod 13, thus restricting the slider from shifting or rotating during rotation.

[0047] In some specific embodiments of this utility model, a return spring 18 can be sleeved on the outer wall of the insertion rod 17. The bottom end of the return spring 18 is connected to the outer wall of the insertion rod 17, and the top end of the return spring 18 is connected to the inner top wall of the rotating seat 9. In the initial state, the insertion rod 17 has a tendency to slide away from the pull rod seat 8.

[0048] It is easy to understand that in this embodiment, a reset spring 18 is sleeved on the outer wall of the insertion rod 17. In the initial state, a pulling force is applied to the insertion rod 17, causing it to tend to slide away from the pull rod seat 8. When the wedge slider 14 moves away, it drives the insertion rod 17 to automatically disengage from the insertion hole 16.

[0049] In some specific embodiments of this utility model, the top surface of the rotating seat 9 may be provided with a hinge shaft 15, and the pull rod seat 8 may be rotatably connected to the rotating seat 9 through the hinge shaft 15.

[0050] It is easy to understand that in this embodiment, by setting the hinge shaft 15 on the top surface of the rotating seat 9, the pull rod seat 8 is connected to the rotating seat 9 through the hinge shaft 15, so that the pull rod seat 8 can achieve stable pitch rotation around the hinge shaft 15.

[0051] In some specific embodiments of this utility model, support feet 6 can be provided on the side wall of the box 1, and four support feet 6 are provided symmetrically in pairs.

[0052] In some specific embodiments of this utility model, a receiving groove 11 can be provided on the back of the box body 1. The receiving groove 11 is recessed on the box body 1, and the pull rod seat 8 and the rotating seat 9 are both installed inside the receiving groove 11.

[0053] It is easy to understand that in this embodiment, a storage space is formed by setting a recessed receiving groove 11 on the back of the box 1. The pull rod seat 8 and the rotating seat 9 can be stored in the receiving groove 11 when not in use, thus avoiding the structure being exposed.

[0054] In some specific embodiments of this utility model, the box body 1 may be provided with a zipper 2 for controlling its opening and closing, and the box body 1 may also be provided with a protective folded edge 7 for covering and protecting the zipper 2.

[0055] It is easy to understand that in this embodiment, the zipper 2 controls the opening and closing of the cavity of the box 1, the protective fold 7 shields the zipper 2 to reduce the intrusion of dust and moisture, and the support feet 6 contact the ground when the box 1 is stationary to enhance stability.

[0056] In some specific embodiments of this utility model, a handle 3 may be provided on the box body 1, and multiple handles 3 may be provided, with the multiple handles 3 respectively provided on the outer surface of different sides of the box body 1.

[0057] It is easy to understand that in this embodiment, by setting multiple handles 3 distributed on the outer surface of different sides of the box 1, the user can select the handles 3 at different positions to apply force according to the carrying needs.

[0058] This large-capacity portable bag achieves flexible adjustment of the pull rod angle through the coordinated action of an adjustable pull rod assembly and a locking assembly, thus solving the problem of the burden caused by the fixed angle of the pull rod in traditional bags. Its overall working principle is as follows:

[0059] In terms of structural composition, the case body 1 serves as the core load-bearing component, storing items through its internal cavity. The four omnidirectional wheels 5 at the bottom corners provide basic support for overall movement, ensuring that the case can flexibly turn and glide. The pull rod assembly is responsible for force and angle adjustment. Its pull rod base 8 is connected to the case body 1 for pitch and rotation via the hinge shaft 15 on the top surface of the rotating base 9. The telescopic pull rod 4 can extend and retract inside the pull rod base 8 to accommodate the gripping needs of users of different heights.

[0060] When the angle of the pull rod needs to be adjusted, the user rotates the knob 10 mounted on the front of the rotating base 9. The knob 10 drives the internal adjusting screw 12 to rotate synchronously. Since the wedge slider 14 is threadedly connected to the adjusting screw 12 and slides in a direction parallel to the adjusting screw 12 under the limiting action of the guide rod 13, the inclined surface of the wedge slider 14 will have relative displacement with the inclined surface at the bottom of the insertion rod 17. When the wedge slider 14 moves away from the insertion rod 17, the insertion rod 17 retracts into the rotating base 9 under the pulling force of the return spring 18, and its top end disengages from the insertion hole 16 at the bottom of the pull rod base 8. At this time, the pull rod base 8 can rotate freely around the hinge axis 15 to realize the adjustment of the pull rod angle.

[0061] Rotating knob 10 in the opposite direction causes adjusting screw 12 to move wedge slider 14 toward insertion rod 17. The inclined surface of wedge slider 14 presses against the inclined surface at the bottom of insertion rod 17, overcoming the elastic force of return spring 18 and pushing insertion rod 17 upward until the top of insertion rod 17 is inserted into the corresponding angle insertion hole 16 of pull rod seat 8, completing the angle locking of pull rod seat 8. At this time, telescopic pull rod 4 and pull rod seat 8 are in their initial state, which is perpendicular to the case 1. In addition, the receiving groove 11 on the back of case 1 provides storage space for pull rod seat 8 and rotating seat 9, reducing space occupation when not in use; zipper 2 opens and closes the receiving cavity, and protective fold 7 protects zipper 2; support feet 6 enhance stability when the case is stationary, and multiple handles 3 make it convenient for users to carry the case in different scenarios. Through the coordinated work of the above structures, the angle of the pull rod can be flexibly adjusted according to usage needs, reducing the extra burden caused by case tilting and improving ease of use and comfort.

[0062] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A large-capacity portable bag, characterized in that, include: Box (1), the box (1) has a cavity for storing items inside, and casters (5) are provided at the four corners of the bottom of the box (1). The pull rod assembly includes a pull rod seat (8) disposed on the back of the box (1), the bottom end of the pull rod seat (8) can be tilted and rotated relative to the box (1), and a telescopic pull rod (4) is disposed inside the pull rod seat (8). The locking assembly includes a rotating seat (9) mounted on the housing (1), a pull rod seat (8) rotatably connected to the top surface of the rotating seat (9) at its bottom end, a plug rod (17) slidably mounted on the top wall of the rotating seat (9), a plug hole (16) for inserting the plug rod (17) is provided at the bottom end of the pull rod seat (8), and an adjusting component for controlling the insertion of the plug rod (17) into the plug hole (16) is provided inside the rotating seat (9); The adjusting component includes an adjusting screw (12) rotatably installed inside the rotating seat (9), a wedge-shaped slider (14) is threaded onto the adjusting screw (12), and the bottom end of the insert rod (17) is provided with an inclined surface that matches the wedge-shaped slider (14), and the inclined surface at the bottom end of the insert rod (17) abuts against the inclined surface of the wedge-shaped slider (14).

2. The large-capacity portable bag according to claim 1, characterized in that: A knob (10) is rotatably mounted on the front of the rotating seat (9), and one end of the adjusting screw (12) is connected to the knob (10).

3. A large-capacity portable bag according to claim 1, characterized in that: The rotating seat (9) is equipped with a guide rod (13), which is parallel to the adjusting screw (12), and the wedge-shaped slider (14) is slidably connected to the guide rod (13).

4. A large-capacity portable bag according to claim 1, characterized in that: A return spring (18) is sleeved on the outer wall of the insertion rod (17). The bottom end of the return spring (18) is connected to the outer wall of the insertion rod (17), and the top end of the return spring (18) is connected to the inner top wall of the rotating seat (9). In the initial state, the insertion rod (17) tends to slide away from the pull rod seat (8).

5. A large-capacity portable bag according to claim 1, characterized in that: The top surface of the rotating seat (9) is provided with a hinge shaft (15), and the pull rod seat (8) is rotatably connected to the rotating seat (9) through the hinge shaft (15).

6. A large-capacity portable bag according to claim 1, characterized in that: The box (1) is provided with support feet (6) on its side wall, and there are four support feet (6) arranged symmetrically in pairs.

7. A large-capacity portable bag according to claim 1, characterized in that: The back of the box (1) is provided with a receiving groove (11), which is recessed on the box (1). The pull rod seat (8) and the rotating seat (9) are both installed inside the receiving groove (11).

8. A large-capacity portable bag according to claim 1, characterized in that: The box (1) is provided with a zipper (2) for controlling its opening and closing, and the box (1) is also provided with a protective fold (7) for covering and protecting the zipper (2).

9. A large-capacity portable bag according to claim 1, characterized in that: The box (1) is provided with a handle (3), and there are multiple handles (3), which are distributed on the outer surface of different sides of the box (1).

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