Luggage case with pull rod convenient to replace

The design of connecting the adapter boss and the I-shaped back cover through a plug-in plate simplifies the replacement process of the suitcase trolley, solves the problem of traditional suitcase trolleys being easily damaged and cumbersome to replace, and achieves the effect of convenient replacement and cost reduction.

CN223473251UActive Publication Date: 2025-10-28DONGGUAN DINGTIAN LUGGAGE PRODUCTS CO LTD
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Patent Information

Application Number
CN202423143150.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-10-28
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Traditional luggage trunk trolleys are prone to deformation or breakage when impacted by external forces, and the replacement process is cumbersome, time-consuming and costly.

Method used

The adapter boss is connected by an insert plate, and the pull rod assembly is fixed to the second box body through the I-shaped back cover, which simplifies the disassembly steps and reduces the difficulty of replacement.

Benefits of technology

The convenience and simplified operation of the pull rod replacement are achieved, the disassembly scope and complexity are reduced, and the replacement cost is reduced.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223473251U_ABST
    Figure CN223473251U_ABST
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Abstract

The utility model relates to a luggage case with a pull rod convenient to replace, which comprises a case body assembly, a pull rod assembly, a pull rod assembly and a pull rod assembly, the pull rod assembly is arranged on the back surface of the box body assembly; the pull rod assembly comprises a base, an insertion plate, two pull rods and a reinforcing sleeve. The I-shaped back cover comprises two cover plates and a supporting plate; a containing cavity is formed in one face of the cover plate, and clamping grooves are formed in the two opposite ends, corresponding to the containing cavity, of the cover plate correspondingly; through holes are respectively formed in four opposite corners of the cover plate, and are in one-to-one correspondence with the assembly seats; the reinforcing sleeve is located in the containing cavity, the cover plate correspondingly abuts against the reinforcing sleeve, and the clamping groove correspondingly contains the pull rod. The luggage case with the pull rod convenient to replace is simple in structure and convenient to use, the inserting plate is correspondingly connected with the switching boss and then connected with the second case body through the I-shaped back cover, the whole pull rod assembly is fixed through the I-shaped back cover, complex disassembling tools or steps are not needed, the disassembling range is greatly reduced, and the difficulty and complexity of replacing the pull rod are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a luggage with a convenient replaceable handle. Background Technology

[0002] Suitcases, also known as travel cases or rolling suitcases, are essential equipment for carrying and storing personal belongings when traveling. Their convenience and ability to carry clothing make them widely used for travel and outings. The pull handle is an indispensable component of a suitcase, its design greatly enhancing portability and allowing users to easily pull and move it.

[0003] Traditional suitcase handles are installed inside the suitcase. When subjected to external impact, the handle may deform or even break. Replacing the handle in this case requires disassembling the suitcase, a process that is not only time-consuming and increases labor costs, but also cumbersome and causes great inconvenience to users. Utility Model Content

[0004] Based on this, the present invention provides a suitcase with a convenient replacement of the pull rod. It has a simple structure and is easy to use. The insert plate is connected to the corresponding adapter boss, and then connected to the second suitcase body through the I-shaped back cover. The entire pull rod assembly is fixed by the I-shaped back cover. No complicated disassembly tools or steps are required, which greatly reduces the disassembly range and reduces the difficulty and complexity of replacing the pull rod.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted:

[0006] A suitcase with an easily replaceable handle, comprising:

[0007] The housing assembly includes a first housing, a second housing that is matched and connected to the first housing, and a transition boss protruding from the inner side of the bottom of the second housing;

[0008] A pull rod assembly mounted on the back of the enclosure assembly; the pull rod assembly includes a base, an insert plate protruding outward from the center of one side of the base, two pull rods connected to opposite sides of the top surface of the base, and a reinforcing sleeve fitted over the two pull rods; the insert plate is used to connect the adapter boss, and the reinforcing sleeve is connected between the two pull rods; and

[0009] An I-beam back cover connects the housing assembly and the pull rod assembly; the I-beam back cover includes two cover plates arranged in an array and a support plate connected between the middle of the two cover plates; one side of the cover plate has a receiving cavity, and the cover plate has slots at opposite ends corresponding to the receiving cavity; the four opposite corners of the cover plate have through holes, which correspond one-to-one with the assembly base. By screwing screws through the through holes, the cover plate can be screwed into the inside of the assembly base to achieve the connection between the cover plate and the second housing; the reinforcing sleeve is located inside the receiving cavity, the cover plate abuts against the reinforcing sleeve, and the slots accommodate the pull rod.

[0010] The aforementioned suitcase with a convenient replaceable pull rod has a simple structure and is easy to use. The insert plate connects to the corresponding adapter boss, and then connects to the second suitcase body through the I-shaped back cover. The entire pull rod assembly is fixed by the I-shaped back cover. No complicated disassembly tools or steps are required, which greatly reduces the scope of disassembly and lowers the difficulty and complexity of replacing the pull rod.

[0011] In one embodiment, a slot is provided on one side of the boss, and a plurality of mounting holes are provided at even intervals along the thickness direction of the boss, with the mounting holes penetrating into the interior of the slot.

[0012] In one embodiment, the insert plate is provided with a plurality of through holes at even intervals, and the through holes correspond one-to-one with the mounting holes; the insert plate is embedded into the slot, and screws are passed through the through holes and screwed into the interior of the mounting holes to realize the connection between the base and the adapter boss.

[0013] In one embodiment, a plurality of assembly seats are spaced apart on the back of the second housing, and each assembly seat has an internal threaded hole in the middle; the assembly seats are distributed at the opposite four corners of the reinforcing sleeve.

[0014] In one embodiment, a positioning strip protrudes from the outer peripheral edge of the cover plate corresponding to the through hole, the positioning strip being used to abut against the contour of the assembly base. Attached Figure Description

[0015] Figure 1 This is a perspective view of a suitcase with a convenient replaceable pull rod according to one embodiment of the present invention.

[0016] Figure 2 for Figure 1 A three-dimensional illustration of a suitcase with an easily replaceable handle, shown from another perspective;

[0017] Figure 3 for Figure 1 An exploded view of a suitcase with a convenient interchangeable handle is shown.

[0018] Figure 4 for Figure 3 This is a side view comparison diagram of the second compartment and the pull rod assembly in a suitcase with an easily replaceable pull rod.

[0019] Figure 5 for Figure 4 An enlarged view of circle A shown;

[0020] Figure 6 for Figure 3 A three-dimensional schematic diagram of the second compartment in a suitcase with a conveniently replaceable handle;

[0021] Figure 7 for Figure 3 A 3D illustration of the I-shaped back cover of a suitcase with a convenient interchangeable handle;

[0022] Figure 8 for Figure 7 A three-dimensional diagram from another perspective of the I-shaped back cover of the suitcase with a conveniently replaceable handle.

[0023] Attached image annotations:

[0024] 10-Box assembly, 11-First box, 12-Second box, 13-Adapter boss, 14-Standing bracket, 15-Slot, 16-Assembly hole, 17-Assembly base;

[0025] 20-Pull rod assembly, 21-Base, 22-Insert plate, 23-Roller, 24-Pull rod, 25-Reinforcing sleeve, 26-Through hole;

[0026] 30-I-shaped back cover, 31-cover plate, 32-support plate, 33-accommodating cavity, 34-slot, 35-through hole, 36-positioning strip. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0030] Please refer to 1 to Figure 8The present invention provides a suitcase with a convenient replaceable pull rod according to one embodiment of the present invention, which includes a suitcase body assembly 10, a pull rod assembly 20 installed on the back of the suitcase body assembly 10, and an I-shaped back cover 30 connecting the suitcase body assembly 10 and the pull rod assembly 20.

[0031] The housing assembly 10 includes a first housing 11, a second housing 12 that is matched and connected to the first housing 11, a transition boss 13 that protrudes from the inner side of the bottom of the second housing 12, and a support bracket 14 that is connected to the outer side of the bottom of the second housing 12.

[0032] like Figure 4 and Figure 5 As shown, a slot 15 is provided inward on one side of the adapter boss 13, and a plurality of mounting holes 16 are provided evenly at intervals along its thickness direction. The mounting holes 16 penetrate into the interior of the slot 15. The slot 15 and the mounting holes 16 are used to connect the pull rod assembly 20.

[0033] like Figure 6 The second housing 12 has multiple assembly seats 17 spaced apart on its back side. Each assembly seat 17 has an internal threaded hole in the middle for matching and connecting the I-beam back cover 30, thereby fixing the pull rod assembly 20.

[0034] The pull rod assembly 20 includes a base 21, an insert plate 22 protruding outward from the center of one side of the base 21, rollers 23 rotatably mounted on opposite sides of the base 21, two pull rods 24 connected to opposite sides of the top surface of the base 21, and a reinforcing sleeve 25 sleeved over the two pull rods 24. The insert plate 22 is used to connect the transition boss 13, and the reinforcing sleeve 25 is connected between the two pull rods 24, effectively improving the structural stability between the two pull rods 24. The assembly bases 17 are correspondingly distributed at the four opposite corners of the reinforcing sleeve 25.

[0035] In this embodiment, if Figure 2 , Figure 4 and Figure 5 As shown, the insert plate 22 is provided with a plurality of through holes 26 at even intervals, and the through holes 26 correspond one-to-one with the mounting holes 16. The insert plate 22 is inserted into the slot 15, and after screws are passed through the through holes 26, it is screwed into the interior of the mounting holes 16 to realize the connection between the base 21 and the adapter boss 13.

[0036] The I-shaped back cover 30 includes two cover plates 31 arranged in an array and a support plate 32 connecting the middle of the two cover plates 31. One side of the cover plate 31 is provided with a receiving cavity 33, and the cover plate 31 is provided with slots 34 at opposite ends corresponding to the receiving cavity 33. The four opposite corners of the cover plate 31 are provided with through holes 35, which correspond one-to-one with the assembly base 17. By screwing screws through the through holes 35 and screwing them into the internal threaded holes of the assembly base 17, the connection between the cover plate 31 and the second housing 12 can be realized. At this time, the reinforcing sleeve 25 is located inside the receiving cavity 33, the cover plate 31 abuts against the reinforcing sleeve 25, and the slots 34 accommodate the pull rod 24.

[0037] Furthermore, such as Figure 8 As shown, to improve the docking accuracy and convenience between the cover plate 31 and the assembly base 17, a positioning strip 36 protrudes from the outer periphery of the cover plate 31 corresponding to the through hole 35. The positioning strip 36 is used to abut against the contour of the assembly base 17 to quickly position the assembly base 17, facilitating the connection between the through hole 35 and the assembly base 17. Compared with the traditional method of replacing the pull rod by disassembling the entire suitcase, this utility model only requires disassembling the pull rod assembly 20 and the I-shaped back cover 30, without involving other parts. This design greatly reduces the disassembly range and lowers the difficulty and complexity of replacing the pull rod 24.

[0038] The above-mentioned suitcase with easy-to-replace pull rod has a simple structure and is easy to use. The insert plate 22 is connected to the adapter boss 13, and then connected to the second box body 12 through the I-shaped back cover 30. The entire pull rod assembly 20 is fixed by the I-shaped back cover 30. No complicated disassembly tools or steps are required, which greatly reduces the disassembly range and reduces the difficulty and complexity of replacing the pull rod 24.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A suitcase with a conveniently replaceable pull handle, characterized in that, include: The housing assembly includes a first housing, a second housing that is matched and connected to the first housing, and a transition boss protruding from the inner side of the bottom of the second housing; A pull rod assembly mounted on the back of the enclosure assembly; the pull rod assembly includes a base, an insert plate protruding outward from the center of one side of the base, two pull rods connected to opposite sides of the top surface of the base, and a reinforcing sleeve fitted over the two pull rods; the insert plate is used to connect the adapter boss, and the reinforcing sleeve is connected between the two pull rods; and An I-beam back cover connects the housing assembly and the pull rod assembly; the I-beam back cover includes two cover plates arranged in an array and a support plate connected between the middle of the two cover plates; one side of the cover plate has a receiving cavity, and the cover plate has slots at opposite ends corresponding to the receiving cavity; the four opposite corners of the cover plate have through holes, which correspond one-to-one with the assembly base. By screwing screws through the through holes, the cover plate can be screwed into the inside of the assembly base to achieve the connection between the cover plate and the second housing; the reinforcing sleeve is located inside the receiving cavity, the cover plate abuts against the reinforcing sleeve, and the slots accommodate the pull rod.

2. The suitcase with a conveniently replaceable pull handle according to claim 1, characterized in that, The boss has a slot on one side, and multiple mounting holes are evenly spaced along the thickness of the boss, with the mounting holes extending into the interior of the slot.

3. The suitcase with a conveniently replaceable pull handle according to claim 2, characterized in that, The insert plate has multiple through holes evenly spaced, and each through hole corresponds to a mounting hole. The insert plate is inserted into the corresponding slot, and screws are passed through the through holes and screwed into the mounting hole to achieve the connection between the base and the adapter boss.

4. The suitcase with a conveniently replaceable pull handle according to claim 1, characterized in that, Multiple assembly seats are spaced apart on the back of the second housing, and each assembly seat has an internal threaded hole in the middle; the assembly seats are distributed at the four opposite corners of the reinforcing sleeve.

5. The suitcase with a conveniently replaceable pull rod according to claim 1, characterized in that, A positioning strip protrudes from the outer periphery of the cover plate corresponding to the through hole. The positioning strip is used to abut against the contour of the assembly base.