Handle folding structure for luggage and luggage

Abstract

This utility model provides a folding handle structure for a suitcase, comprising: a handle mounting base; grip portions symmetrically disposed on both sides of the handle mounting base and respectively hinged to the handle mounting base; a handle frame including connecting protrusions corresponding one-to-one with the grip portions; and a connecting arm provided between the grip portions and the handle frame, one end of the connecting arm being hinged to the grip portion and the other end being hinged to the connecting protrusions, wherein the grip portions and the connecting arm work together to achieve folding or unfolding. This utility model, by setting a hinge mechanism in which the connecting arm cooperates with a limiting groove, achieves efficient and compact folding and unfolding of the handle while ensuring comfortable grip and structural stability during riding, significantly improving the overall performance and aesthetics of the product, while also ensuring structural strength in the unfolded state.

Description

Technical Field

[0001] This utility model belongs to the field of luggage technology, specifically relating to a folding handle structure for a luggage and a luggage. Background Technology

[0002] With the growing popularity of smart mobility and the development of the multifunctional suitcase market, rideable suitcases that integrate cycling, pushing, and storage functions are attracting increasing attention. These products typically achieve cycling control through a retractable handlebar and lever structure at the front of the suitcase. To meet overall aesthetic and storage requirements, the handlebar and lever structure are often designed to be retractable, allowing them to be stored inside the suitcase when not in use, keeping the suitcase's appearance flat. In this overall structure, the folding mechanism of the handle is particularly crucial, as its performance directly determines whether smooth and stable unfolding and thorough, compact folding can be achieved.

[0003] Currently, the folding handle structures used in rideable suitcases still have significant drawbacks. To achieve the folding function, common solutions often employ multi-stage linkages or complex hinge mechanisms, resulting in a large number of parts, complex assembly processes, and low overall reliability. This not only increases manufacturing costs but also raises the failure rate. Furthermore, while some simplified folding solutions have relatively simple structures, the handle still protrudes noticeably after folding, failing to fully retract into the suitcase and affecting its overall appearance and aesthetics, thus failing to meet users' visual and functional requirements for high-quality suitcases.

[0004] Therefore, in view of the problems of complex structure and unsatisfactory concealment effect of existing folding handles for rideable suitcases, there is an urgent need for a folding handle solution with a simple and reasonable structure that can be completely concealed. Utility Model Content

[0005] In order to solve the above problems, the purpose of this utility model is to provide a folding structure for a suitcase handle and a suitcase.

[0006] The present invention achieves the aforementioned technical effect through the following technical solution:

[0007] Firstly, this utility model provides a folding handle structure for a suitcase, comprising: a handle mounting base; grip portions symmetrically disposed on both sides of the handle mounting base and respectively hinged to the handle mounting base; a handle frame including connecting protrusions corresponding one-to-one with the grip portions; and a connecting arm provided between the grip portions and the handle frame, one end of the connecting arm being hinged to the grip portion and the other end being hinged to the connecting protrusions, wherein the grip portions and the connecting arm work together to achieve folding or unfolding. By setting the connecting arm to double-hinge the grip portions and the handle mounting base, the instability and wobbling problems caused by simple direct flipping are avoided, resulting in smoother folding action and a more reliable structure.

[0008] Preferably, the handle folding structure further includes a retractable pull rod assembly.

[0009] Preferably, the pull rod assembly includes an inner sleeve, an outer sleeve fitted outside the inner sleeve, and a base sleeve fitted outside the outer sleeve. The handle bracket is fixed to the top of the inner sleeve. The inner sleeve is connected to the handle mounting seat through the connecting arm. The base sleeve is fixed to the front wheel assembly of the luggage compartment. The inner sleeve is driven to move up and down by a drive assembly.

[0010] The drive assembly includes a motor and a lead screw that is driven by the motor, and the lead screw is threadedly connected to the inner sleeve.

[0011] Preferably, each side of the handle mounting base is provided with a limiting hole, and the end of the grip portion is fixed to the handle mounting base through the limiting hole and the rotating shaft. The grip portion is fixed to one side of the handle mounting base by the cooperation of a pair of limiting holes and the rotating shaft, providing a stable rotational support point for the grip portion. The dual-point support structure effectively prevents the grip portion from twisting or loosening under force, thereby enhancing the durability and structural strength of the folding structure.

[0012] Preferably, the handle mounting base has a hollow handle clearance structure, and the folded grip portion is partially accommodated within the handle clearance structure. This handle clearance structure provides storage space for the folded grip portion, resulting in a smaller space occupied by the handle after folding.

[0013] Preferably, the connecting arm is an arc-shaped structural component. This allows its movement trajectory to naturally match the rotation trajectory of the grip, ensuring a smooth and interference-free folding process. At the same time, the arc-shaped structure itself also has good mechanical properties, which can effectively disperse the stress generated during lifting and improve the lifespan of the folding structure.

[0014] Preferably, the gripping part is provided with a limiting groove for the movement of the connecting arm. By providing the limiting groove, guidance and accommodation space are provided for the movement of the connecting arm, preventing structural interference between the connecting arm and the gripping part during movement, and making the folding process smoother.

[0015] Secondly, this utility model provides a suitcase, including the handle folding structure, front wheel assembly and suitcase body as described above.

[0016] Preferably, a telescopic mechanism is provided between the front wheel assembly and the suitcase body, and the folding handle structure and pull rod assembly of the suitcase extend or retract into the receiving cavity provided in the suitcase body along with the telescopic mechanism. This enables the suitcase to unfold smoothly and stably and fold completely and compactly.

[0017] The folding handle structure and suitcase provided by this utility model have the following significant advantages compared with the prior art:

[0018] This utility model, by setting a hinge mechanism in which the connecting arm and the limiting groove cooperate, achieves efficient and compact folding and unfolding of the handlebar while ensuring comfortable grip and structural stability during riding. This significantly improves the overall performance and aesthetics of the product, while ensuring structural strength in the unfolded state. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the folding handle structure of the suitcase of this utility model in use.

[0020] Figure 2 This is a schematic diagram of the folding handle structure of the suitcase according to this utility model.

[0021] Figure 3 This is a schematic diagram of the unfolded state of the folding handle structure of the suitcase of this utility model (without handle mounting base and protective cover).

[0022] Figure 4 This is a schematic diagram of the folding structure of the suitcase handle of this utility model in its folded state (without handle mounting base and protective cover).

[0023] Figure 5 This is a schematic diagram of the handle mounting base of this utility model.

[0024] Figure 6 This is a cross-sectional schematic diagram of the folding handle structure of this utility model.

[0025] The components are: 1-handle mounting base, 2-pull rod assembly, 3-grip, 4-connecting arm, 5-handle bracket, 6-connecting protrusion, 7-limiting hole, 8-rotating shaft, 9-limiting groove, 10-protective sleeve, 11-first hinge shaft, 12-second hinge shaft, 13-inner sleeve, 14-outer sleeve, 15-base sleeve, 16-lead screw, 17-front wheel assembly, 18-box body, 19-accommodating cavity, 20-bayonet, 21-handle avoidance structure. Detailed Implementation

[0026] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the embodiments described herein are only some, not all, of the embodiments of this utility model, and are merely used to explain the present utility model and are not intended to limit the present utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be described in further detail below.

[0028] like Figures 1-6 As shown, this utility model provides a folding structure for a suitcase handle, including a handle mounting base 1; gripping parts 3, symmetrically arranged on both sides of the handle mounting base 1 and respectively hinged to the handle mounting base 1; a handle frame 5, including connecting protrusions 6 corresponding one-to-one with the gripping parts 3; a connecting arm 4 is provided between the gripping parts 3 and the handle frame 5, one end of the connecting arm 4 is hinged to the gripping part 3 through a first hinge shaft 11, and the other end of the connecting arm 4 is hinged to the connecting protrusions 6 through a second hinge shaft 12. The gripping parts 3 and the connecting arm 4 work together to fold or unfold. Specifically, the handle mounting base 1 can be located at the top of the front upright of the suitcase, and has mounting holes or slots that match the top of the suitcase pull rod 2 to fix it to the top of the pull rod assembly 2.

[0029] In some specific embodiments, the handle mounting base 1 is provided with a hollow handle clearance structure 21, which provides space for the folding and storage of the grip part 3. The grip part 3 is partially accommodated within the handle clearance structure 21 after folding. Placing the grip part 3 in the handle mounting base 1 and allowing it to rotate helps to ensure the symmetry and consistency of the rotation angles of the grip parts 3 on both sides.

[0030] Specifically, the grip portion 3 can be a long, narrow rod, and is covered with a protective sleeve 10. Preferably, the protective sleeve 10 can be made of soft rubber or silicone to increase grip comfort and anti-slip properties, protect the internal structure from bumps and scratches, and enhance the product's aesthetics and user experience. The grip portion 3 is rotatably connected to both sides of the handle mounting base 1. Specifically, a pair of coaxial limiting holes 7 are provided on each side wall of the handle mounting base 1. The end of the grip portion 3 is rotatably connected to the handle mounting base 1 via a rotating shaft 8 inserted into the limiting holes 7. The dual-point support design with a pair of limiting holes 7 greatly enhances the stability and load-bearing capacity of the rotating structure.

[0031] In some specific embodiments, the handle folding structure further includes a retractable pull rod assembly 2. Specifically, the pull rod assembly 2 includes an inner sleeve 13, an outer sleeve 14 sleeved outside the inner sleeve 13, and a base sleeve 15 sleeved outside the outer sleeve 14. The handle bracket 5 is fixed to the top of the inner sleeve 14. Specifically, the handle bracket 5 and the inner sleeve 14 can be integrally formed. The inner sleeve 13 is connected to the handle mounting base 1 via the connecting arm 4, and the base sleeve 15 is fixed to the front wheel assembly 17 of the luggage compartment. The inner sleeve 13 is driven to move up and down via a drive assembly.

[0032] The drive assembly includes a motor and a lead screw 16 connected to the motor. The lead screw 16 is threadedly connected to the inner sleeve 13, and its extension and retraction are achieved through a lead screw and nut mechanism. In this embodiment, the motor is a servo motor, which has advantages such as high precision and fast response.

[0033] In a specific embodiment, when in riding mode, the handlebar assembly 6 and the lever assembly 2 need to be unfolded. At this time, the motor starts, and its output shaft drives the lead screw 16 to rotate. Since the inner sleeve 13 is threadedly connected to the lead screw 16, the rotational motion of the lead screw 16 is converted into the upward sliding of the inner sleeve 13. When the inner sleeve 13 moves upward until its top abuts against the handlebar mounting seat 1, the connecting arm 4 pulls the grip parts 3 on both sides respectively, causing the grip parts 3, which were originally in a retracted state, to rotate around the hinge point with the handlebar mounting seat 1 and gradually switch to an unfolded state. When the grip parts 3 are fully unfolded, the inner sleeve 13 continues to move upward, and the top of the inner sleeve 13 contacts the handlebar mounting seat 1, forcing the outer sleeve 14 to move upward synchronously, so that the unfolded handlebar assembly 6 rises together with the outer sleeve 14 until it reaches the preset working position, thereby realizing the overall height increase of the handlebar assembly 6 and the lever assembly 2.

[0034] When the luggage case needs to be switched from riding mode to non-riding mode, the drive assembly drives the lead screw 16 to rotate in the opposite direction, causing the inner sleeve 13 to slide in the opposite direction (downward). This pulls the grip part 3 in the opposite direction via the connecting arm 4, changing it from an unfolded state to a folded state, thus completing the handle folding process. Subsequently, the connecting arm 4 on the inner sleeve 13 abuts against the outer sleeve 14, causing the outer sleeve 14 to move downward synchronously. Since the handle mounting seat 1 is fixed to the top of the outer sleeve 14, the handle mounting seat 1 and the folded grip part 3 descend together with the outer sleeve 14 until they return to their initial working position.

[0035] Specifically, the handle mounting base 1 has a latch 20 for engaging the pull rod assembly 2 of the suitcase. In some specific embodiments, the handle frame 5 has a connecting protrusion 6, and the top of the outer tube 14 has a groove that mates with the connecting protrusion 6. When the connecting protrusion 6 slides in the groove, the connecting arm 4 drives the grip part 3 to switch between a folded state and an unfolded state. By pulling the grip parts 3 on both sides by the connecting arm 4, the grip parts 3, which were originally in the folded state, rotate around the hinge point with the handle mounting base 1 and gradually switch to the unfolded state. When the grip part 3 is fully unfolded, the inner tube 13 continues to move upward, and the connecting protrusion 6 of the inner tube 13 rises and contacts the handle mounting base 1. Since the handle mounting base 1 is fixed to the top of the outer tube 14, the outer tube 14 is forced to move upward synchronously, so that the unfolded grip part 3 rises with the outer tube 14 until it reaches the preset working position, thereby realizing the overall height increase of the handle folding structure. When the handle needs to be folded, the connecting protrusion 6 at the top of the inner sleeve 13 is placed in the groove and located away from the top of the outer sleeve 14. Then, the drive assembly drives the transmission screw 3 to rotate in the opposite direction, the inner sleeve 13 slides downward, and the grip part 3 is pulled in the opposite direction by the connecting arm 4, so that it changes from the unfolded state to the folded state, completing the handle folding process.

[0036] In some specific embodiments, the connecting arm 4 is an arc-shaped structural component. Preferably, the central angle corresponding to the arc of the arc-shaped structural component is no greater than 90 degrees, that is, no greater than one-quarter of a circumference.

[0037] In some specific embodiments, the gripping part 3 is provided with a limiting groove 9 for the movement of the connecting arm 4, so as to accommodate the movement of the connecting arm 4 and guide it precisely. Preferably, the width of the limiting groove 9 is the same as the width of the connecting arm 4, thereby ensuring that the connecting arm 4 can slide smoothly in the groove without excessive wobbling.

[0038] This utility model provides a suitcase, including a folding handle structure, a front wheel assembly 17 and a suitcase body 18 as described above. A telescopic mechanism is provided between the front wheel assembly 17 and the suitcase body 18. The folding handle structure and the pull rod assembly 2 extend or retract into the receiving cavity 19 provided inside the suitcase body 18 with the telescopic mechanism.

[0039] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A folding handle structure for a suitcase, characterized in that, include: Handle mounting base; The grip portion is symmetrically arranged on both sides of the handle mounting base and is hinged to the handle mounting base respectively; The handle includes connecting protrusions that correspond one-to-one with the grip portions; A connecting arm is provided between the grip and the handle frame. One end of the connecting arm is hinged to the grip, and the other end of the connecting arm is hinged to the connecting protrusion. The grip and the connecting arm work together to fold or unfold.

2. The folding handle structure of the suitcase according to claim 1, characterized in that, The handle folding structure also includes a retractable pull rod assembly.

3. The folding handle structure of the suitcase according to claim 2, characterized in that, The pull rod assembly includes an inner sleeve, an outer sleeve fitted outside the inner sleeve, and a base sleeve fitted outside the outer sleeve. The handle bracket is fixed to the top of the inner sleeve. The inner sleeve is connected to the handle mounting seat through the connecting arm. The base sleeve is fixed to the front wheel assembly of the luggage compartment. The inner sleeve is driven to move up and down by a drive assembly. The drive assembly includes a motor and a lead screw that is driven by the motor, and the lead screw is threadedly connected to the inner sleeve.

4. The folding handle structure of the suitcase according to claim 1, characterized in that, The handle mounting base has limiting holes on both sides, and the end of the grip part is fixed on the handle mounting base through the limiting holes and the rotating shaft.

5. The folding handle structure of the suitcase according to claim 1, characterized in that, The handle mounting base has a hollow handle clearance structure, and the grip portion is partially accommodated within the handle clearance structure after folding.

6. The folding handle structure of the suitcase according to claim 1, characterized in that, The connecting arm is an arc-shaped structural component.

7. The folding handle structure of the suitcase according to claim 1, characterized in that, The gripping part is provided with a limiting groove for the movement of the connecting arm.

8. A suitcase, characterized in that: Includes the handle folding structure, front wheel assembly, and case body of the suitcase as described in any one of claims 1 to 7.

9. The suitcase according to claim 8, characterized in that, A telescopic mechanism is provided between the front wheel assembly and the box body, and the handle folding structure and pull rod assembly of the suitcase extend or retract into the receiving cavity provided in the box body along with the telescopic mechanism.

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