A trolley case with a trolley structure

By introducing slots and connectors into the suitcase design, the problem of inconvenient disassembly and assembly of the suitcase handle is solved, achieving easy disassembly and assembly while maintaining structural integrity, reducing the ingress of dust and rainwater, and enhancing connection stability.

CN224483262UActive Publication Date: 2026-07-14WENZHOU QIFENG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU QIFENG TECH CO LTD
Filing Date
2025-09-19
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing suitcase handles are not convenient to assemble or disassemble, and their structure poses a risk of dust and rainwater entering.

Method used

The design incorporates a fixing part and connector with slots. The slots and connectors work together to fix and disassemble the pull rod assembly from the case. The fit between the back plate and the pressure plate enhances the connection stability, and the bolt fasteners strengthen the fixation.

Benefits of technology

It enables easy installation and disassembly of the tie rod assembly, avoids structural complexity and the ingress of dust and rainwater, and enhances connection stability and overall structural integrity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224483262U_ABST
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Abstract

The utility model discloses a kind of trolley case with pull rod structure, including box and pull rod assembly;The side of the box is equipped with first fixed part and second fixed part, and first fixed part and second fixed part are equipped with slot on it;The pull rod assembly includes first connecting piece and second connecting piece;The second connecting piece is connected with support rod, and the upper end of the support rod is connected with telescopic rod after passing through first connecting piece;The upper side of support rod is fixed on the box after the one end of first connecting piece is inserted into the slot on first fixed part, and the lower end of the support rod is fixed on the box after the one end of the second connecting piece is inserted into the slot of the second fixed part.The equipment compared with prior art, first, the installation and disassembly of pull rod assembly are more convenient;Second, it is not necessary to set up access hole on the box, so that the box is more simple in structure, and the structure of the box is more complete, reduce dust, rainwater into the box.
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Description

Technical Field

[0001] This utility model relates to the field of luggage technology, specifically to a trolley case with a pull rod structure. Background Technology

[0002] A trolley case refers to a case equipped with a pull rod and wheels, widely used due to its convenience. Trolley cases are further categorized by the pull rod: single-tube and double-tube pull rods, and the tubes of the pull rod can be square or round, facilitating dragging and significantly reducing the burden of walking. For example, a trolley case pull rod fixing device, disclosed in publication number "CN219645226U," features an inspection door, a knob, and a threaded rod. The inspection door is hinged to the front of the trolley case and is parallel to the mounting block. The threaded rod passes through the front of the inspection door, with a knob installed at its end. Rotating the knob separates the threaded rod from the trolley case, and rotating the knob opens and closes the inspection door. Once open, the inspection door faces the mounting block. After removing all bolts from the mounting block, the pull rod can be pulled out using the handle for inspection and replacement. However, this trolley case pull rod fixing device still has the following drawbacks in actual use:

[0003] The pull rod of the aforementioned suitcase is located inside the suitcase body. Although the design of the access panel and other structures facilitates the removal and installation of the pull rod, the overall structural convenience of the pull rod needs to be improved. Therefore, we propose a new pull rod structure for suitcases that can effectively solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a trolley case with a pull rod structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a trolley case with a pull rod structure, comprising a case body and a pull rod assembly movably mounted on one side of the case body; a first fixing part and a second fixing part are provided on one side of the case body, and both the first fixing part and the second fixing part are provided with slots; the pull rod assembly includes a first connector and a second connector; the second connector is connected to a provided support rod, and the upper end of the support rod passes through the first connector and is connected to a provided telescopic rod; one end of the first connector is inserted into the slot on the first fixing part to fix the upper side of the support rod to the case body, and one end of the second connector is inserted into the slot of the second fixing part to fix the lower end of the support rod to the case body.

[0006] As a preferred technical solution of this utility model: both the first connector and the second connector include a pressure plate and a back plate, and the back plate passes through the slot and is attached to the back of the box.

[0007] As a preferred technical solution of this utility model: the pressure plate is further provided with a through hole, and both the first fixing part and the second fixing part are provided with internal threaded holes corresponding to the position of the through hole.

[0008] As a preferred technical solution of this utility model: the back plate of the first connector passes through the slot of the first fixing part from top to bottom, and the back plate of the second connector passes through the slot of the second fixing part from bottom to top.

[0009] As a preferred technical solution of this utility model: the pressure plate of the second connector is further provided with a socket, and one end of the support rod is inserted into the socket.

[0010] As a preferred technical solution of this utility model: the cross-section of the pressure plate and the back plate is L-shaped, and the materials of the first connector and the second connector are the same as the material of the box body.

[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows: Since the device uses two connectors to be inserted into the corresponding fixing parts respectively, the first connector and the second connector can be pulled out at the same time to fix the pull rod assembly to the box body, thus realizing the disassembly of the pull rod assembly and the box body; based on this, compared with the prior art, the device is more convenient in terms of both installation and disassembly of the pull rod assembly and the elimination of the need for inspection holes on the box body, so the box body is simpler in structure and more complete, reducing the entry of rainwater and dust into the box body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is an exploded view of the main structure of this utility model;

[0014] Figure 3 This is an exploded view of the tie rod assembly.

[0015] Figure 4 This is a schematic diagram of the rear structure of the housing of this utility model;

[0016] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle;

[0017] Figure 6 This is a schematic diagram of the main structure of the second connector of this utility model;

[0018] Figure 7 This is a schematic diagram of the main structure of the first connecting member of this utility model.

[0019] In the diagram: 1. Box body; 2. Pull rod assembly; 20. First connector; 21. Second connector; 22. Support rod; 23. Telescopic rod; 24. Through hole; 25. Socket; 26. Back plate; 27. Pressure plate; 3. First fixing part; 4. Second fixing part; 5. Internal threaded hole; 6. Slot. Detailed Implementation

[0020] 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 intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as limiting this utility model.

[0021] Please see Figures 1-7 This utility model provides an embodiment of a trolley case with a pull rod structure, comprising a case body 1 and a pull rod assembly 2 movably mounted on one side of the case body 1; a first fixing part 3 and a second fixing part 4 are provided on one side of the case body 1, and both the first fixing part 3 and the second fixing part 4 are provided with slots 6; the pull rod assembly 2 includes a first connector 20 and a second connector 21; the second connector 21 is connected to a provided support rod 22, and the upper end of the support rod 22 passes through the first connector 20 and is connected to a provided telescopic rod 23; one end of the first connector 20 is inserted into the slot 6 on the first fixing part 3 to fix the upper side of the support rod 22 to the case body 1, and one end of the second connector 21 is inserted into the slot 6 of the second fixing part 4 to fix the lower end of the support rod 22 to the case body 1. Since the device uses two connectors to be inserted into the corresponding fixing parts, the first connector 20 and the second connector 21 can be pulled out at the same time to fix the pull rod assembly 2 to the box 1, thus achieving the disassembly of the pull rod assembly 2 from the box 1. Based on this, compared with the prior art, the device is simpler to install and disassemble the pull rod assembly 2, and does not require an inspection hole on the box 1. Therefore, the box 1 is simpler in structure and more complete, reducing the entry of dust and rainwater into the box 1.

[0022] Specifically, since both the first connector 20 and the second connector 21 include a pressure plate 27 and a back plate 26, and the back plate 26 passes through the slot 6 and is attached to the back of the box 1, when the pressure plate 27 is attached to the corresponding fixing part, the back plate 26 is attached to the back of the box 1. This not only enhances the connection stability between the pull rod assembly 2 and the box 1, but also allows the back plate 26 to support the box 1 from the outside, so as to avoid the back of the box 1 from "bulging" due to the weight when it is pulled.

[0023] Furthermore, since the pressure plate 27 is also provided with a through hole 24, and both the first fixing part 3 and the second fixing part 4 are provided with internal threaded holes 5 corresponding to the position of the through hole 24, fasteners such as bolts can be used to pass through the through hole 24 and connect with the internal threaded holes 5 to further fix the first connecting member 20 on the first fixing part 3 and the second connecting member 21 on the second fixing part 4. When the fasteners such as bolts are installed, the stability of the connection between the pull rod assembly 2 and the housing 1 can be enhanced. Conversely, the two connecting members can be removed by removing the fasteners such as bolts. Based on this, compared with the prior art, the bolts and fasteners can be directly installed and removed from the outside of the housing 1 to facilitate the installation and removal of the pull rod assembly 2.

[0024] Based on the above solution, since the back plate 26 of the first connector 20 passes through the slot 6 of the first fixing part 3 from top to bottom, and the back plate 26 of the second connector 21 passes through the slot 6 of the second fixing part 4 from bottom to top, the two connectors can be fastened to the box 1, so that the stability of the pull rod assembly 2 after being connected to the box 1 is enhanced.

[0025] Since the pressure plate 27 of the second connector 21 is also provided with a socket 25, and one end of the support rod 22 is inserted into the socket 25, the lower end of the support rod 22 can be reliably connected to the second connector 21. In actual use, the support rod 22 can be fixed in the socket 25 by bolting through the socket 25 and pressing it against the support rod 22.

[0026] In addition, since the cross-section of the pressure plate 27 and the back plate 26 is L-shaped, it is convenient to install the two connectors. At the same time, the material of the first connector 20 and the second connector 21 is the same as the material of the box body 1, so that the structural strength of the two connectors and the box body 1 is equal, and the color is consistent with the box body 1. Furthermore, the L-shape of the two connectors allows the back plates 26 of the two connectors to be reliably attached to the box body 1, and the pressure plates 27 of the two connectors to be attached to the corresponding fixing parts.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A trolley case with a pull rod structure, characterized in that: Includes a housing (1) and a pull rod assembly (2) movably mounted on one side of the housing (1); The box (1) has a first fixing part (3) and a second fixing part (4) on one side, and both the first fixing part (3) and the second fixing part (4) have slots (6). The pull rod assembly (2) includes a first connector (20) and a second connector (21); the second connector (21) is connected to a support rod (22), and the upper end of the support rod (22) passes through the first connector (20) and is connected to a telescopic rod (23); After one end of the first connector (20) is inserted into the slot (6) on the first fixing part (3), the upper side of the support rod (22) is fixed on the box body (1), and after one end of the second connector (21) is inserted into the slot (6) of the second fixing part (4), the lower end of the support rod (22) is fixed on the box body (1).

2. A trolley case with a pull rod structure according to claim 1, characterized in that: Both the first connector (20) and the second connector (21) include a pressure plate (27) and a back plate (26), and the back plate (26) passes through the slot (6) and is attached to the back of the housing (1).

3. A trolley case with a pull rod structure according to claim 2, characterized in that: The pressure plate (27) is also provided with a through hole (24), and the first fixing part (3) and the second fixing part (4) are both provided with internal thread holes (5) corresponding to the position of the through hole (24).

4. A trolley case with a pull rod structure according to claim 1, 2, or 3, characterized in that: The back plate (26) of the first connector (20) passes through the slot (6) of the first fixing part (3) from top to bottom, and the back plate (26) of the second connector (21) passes through the slot (6) of the second fixing part (4) from bottom to top.

5. A trolley case with a pull rod structure according to claim 4, characterized in that: The second connector (21) is provided with a socket (25) on the pressure plate (27), and one end of the support rod (22) is inserted into the socket (25).

6. A trolley case with a pull rod structure according to claim 5, characterized in that: The cross-section of the pressure plate (27) and the back plate (26) is L-shaped, and the materials of the first connector (20) and the second connector (21) are the same as those of the box body (1).