High-strength wear-resistant trolley case

By adopting a polyester case body, aluminum alloy pull rod, and Velcro connection design, the problem of existing trolley cases being unable to be carried according to environmental needs has been solved, achieving high strength and wear resistance as well as a diverse user experience.

CN224291433UActive Publication Date: 2026-05-29WENZHOU OYUAA LUGGAGE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU OYUAA LUGGAGE CO LTD
Filing Date
2025-07-07
Publication Date
2026-05-29

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  • Figure CN224291433U_ABST
    Figure CN224291433U_ABST
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Abstract

The utility model relates to the field technical field of draw-bar box, a high strength wear -resisting draw-bar box, including first box and second box, the outer wall of first box is fixedly connected with slide fastener, the outer wall of the other side of slide fastener is fixedly connected with second box, the inner wall of first box is installed with draw-bar body, the outer wall of first box is fixedly connected with the magic tape of nap surface, the outer wall of second box is connected with mounting mechanism. Through the front shell is inserted to the surface of second box from the front, manually rotates silica gel block, drives the rotation of the clamping block on the round block, makes the clamping block enter the sliding slot and forms the close cooperation, thereby controls the free disassembly between front shell and second box, if the front shell and rear shell are disassembled, the second box and first box constitute the draw-bar box made of the lighter polyester material and directly use, realize the selective carrying according to the requirement of use environment, satisfy the market to the diversified aesthetic demand.
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Description

Technical Field

[0001] This utility model relates to the technical field of trolley cases, specifically a high-strength wear-resistant trolley case. Background Technology

[0002] A rolling suitcase is a type of luggage equipped with a pull handle and wheels. It is widely used due to its convenience. Rolling suitcases are further categorized by the pull handle: single-tube and double-tube handles are available. The handle itself can also be square or round, designed to facilitate dragging and significantly reduce the burden of walking. Rolling suitcases are made from various materials, including ABS, Oxford cloth, PU leather, and PVC, with Oxford cloth and PVC suitcases offering superior wear resistance.

[0003] For example, a wear-resistant trolley case with authorization announcement number "CN221410620U" solves the problem that existing wear-resistant trolley cases are easily damaged by impacts. The above-mentioned case uses elastic elements and buffer bars on the outside of the first and second cases to buffer and protect the first and second cases when placed on the ground, reducing the impact of internal items on the cases and thus extending the service life of the cases. However, considering that existing wear-resistant trolley cases use wear-resistant materials directly on the surface of the case and buffer components around the edges to cushion external forces, the surface material of the trolley case is monotonous and cannot be selectively carried according to the needs of the environment, making it difficult to meet the market's diverse aesthetic demands. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing wear-resistant trolley cases cannot be selectively carried according to the needs of the environment in which they are used, and are difficult to meet the market's diverse aesthetic demands. Therefore, this invention proposes a high-strength wear-resistant trolley case.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength wear-resistant trolley case, comprising a first case body and a second case body, wherein the outer wall of the first case body is fixedly connected to a zipper, the outer wall on the other side of the zipper is fixedly connected to the second case body, a trolley body is installed on the inner wall of the first case body, the outer wall of the first case body is fixedly connected to a Velcro fastener, and an installation mechanism is connected to the outer wall of the second case body.

[0006] The first and second compartments are made of polyester, which is lightweight. The polyester fabric is coated to make it waterproof. The pull rod is preferably made of aluminum alloy, which is sturdy and durable. The zipper is made of high-strength metal and is treated with a special process to have excellent wear resistance and explosion-proof performance, thus extending its service life.

[0007] Preferably, the installation mechanism includes a mounting base, the outer wall of which is fixedly connected to the second housing, the inner wall of which is machined with a sliding groove, the inner wall of which abuts against a locking block, and the outer wall of the locking block is fixedly connected to a round block.

[0008] This design, through the cooperation of the mounting base and the slide, allows the locking block to move flexibly within the slide while ensuring a tight connection that is not easily loosened. The fixed connection between the round block and the locking block further enhances the structural stability, enabling the suitcase to withstand greater external impacts during use.

[0009] Preferably, the outer wall of the hook and loop fastener is fixedly connected to the hook and loop fastener, and the outer wall of the round block is connected to a reinforcing mechanism.

[0010] This feature, through the combination of rough-surface and hook-and-loop fasteners, allows for quick and easy securing of the suitcase to the outside, enhancing its stability during transport.

[0011] Preferably, the reinforcement mechanism includes a ring, the inner wall of which is rotatably connected to a circular block, the outer wall of which is fixedly connected to the front outer shell, and the inner wall of which is rotatably connected to a silicone block.

[0012] This design, with its fixed connection between the ring and the front shell, and the rotating connection of the silicone block, further enhances the overall structural strength of the suitcase. The elastic properties of the silicone block cushion impacts, effectively protecting the contents inside the suitcase. Furthermore, the ring design makes the reinforcement mechanism more flexible during use, allowing users to adjust it according to their specific needs.

[0013] Preferably, the outer wall of the hook and loop fastener is fixedly connected to the rear outer shell, and the outer wall of the rear outer shell is fixedly connected to the cup frame.

[0014] This feature, which securely connects the rear shell to the cup holder, not only increases the storage capacity of the suitcase but also allows for convenient placement of items such as water bottles during travel, enhancing usability. Furthermore, the rear shell is made of high-strength, wear-resistant PC (polycarbonate) material.

[0015] Preferably, the rear end of the silicone block is fixedly connected to the circular block.

[0016] This design combines the elasticity of the silicone block with the sturdiness of the round block, creating a dual protection mechanism.

[0017] Preferably, the lower end of the second housing is equipped with wheels.

[0018] The wheels are made of high-strength, wear-resistant material, providing excellent durability and impact resistance, and enabling them to adapt to various complex terrains.

[0019] The present invention proposes a high-strength, wear-resistant trolley case with the following advantages: by inserting the front outer shell into the surface of the second case from the front, manually rotating the silicone block causes the locking block on the round block to rotate, so that the locking block enters the sliding groove to form a tight fit, thereby controlling the free disassembly between the front outer shell and the second case. If the front and rear outer shells are disassembled, the second case and the first case can be used directly as a trolley case made of lighter polyester material, which can be selectively carried according to the needs of the usage environment and meet the market's diverse aesthetic needs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the assembly of the first and second boxes;

[0022] Figure 3 for Figure 1 Schematic diagram of the reinforcement mechanism;

[0023] Figure 4 for Figure 2 Enlarged schematic diagram of the installation mechanism;

[0024] Figure 5 for Figure 4 Schematic diagram of the assembly of the central circular block and the card block;

[0025] Figure 6 for Figure 1 Schematic diagram of the rear outer shell structure.

[0026] In the diagram: 1. First housing, 2. Second housing, 3. Zipper, 4. Pull rod body, 5. Velcro with rough surface, 6. Mounting mechanism, 601. Mounting base, 602. Slide groove, 603. Locking block, 604. Round block, 7. Hook Velcro with hook surface, 8. Reinforcing mechanism, 801. Ring, 802. Front outer shell, 803. Silicone block, 9. Rear outer shell, 10. Cup frame, 11. Wheel. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] Please see Figure 1-6 In this embodiment, a high-strength wear-resistant trolley case includes a first case body 1 and a second case body 2. The outer wall of the first case body 1 is fixedly connected to a zipper 3, and the outer wall on the other side of the zipper 3 is fixedly connected to the second case body 2. A trolley body 4 is installed on the inner wall of the first case body 1, and the outer wall of the first case body 1 is fixedly connected to a hook and loop fastener 5. An installation mechanism 6 is connected to the outer wall of the second case body 2.

[0029] The mounting mechanism 6 includes a mounting base 601, which is mounted to the mounting base 601 by a locking block 603 on the round block 604, so that the second housing 2 on the mounting base 601 is installed with the front housing 802. The outer wall of the mounting base 601 is fixedly connected to the second housing 2. The inner wall of the mounting base 601 is machined with a sliding groove 602. The inner wall of the sliding groove 602 abuts against the locking block 603. The outer wall of the locking block 603 is fixedly connected to the round block 604.

[0030] The front outer shell 802 is inserted into the surface of the second box 2 from the front. The silicone block 803 is manually rotated, which drives the locking block 603 on the round block 604 to rotate, so that the locking block 603 enters the slide groove 602 to form a tight fit, thereby controlling the free disassembly between the front outer shell 802 and the second box 2. If the front outer shell 802 and the rear outer shell 9 are disassembled, the second box 2 and the first box 1 form a trolley case made of lighter polyester material for direct use, so that it can be selectively carried according to the needs of the use environment, and meet the market's diverse aesthetic needs.

[0031] The outer wall of the hook and loop fastener 5 is fixedly connected to the hook and loop fastener 7. The outer wall of the round block 604 is connected to a reinforcing mechanism 8. The reinforcing mechanism 8 includes a ring 801. The inner wall of the ring 801 is rotatably connected to the round block 604. The outer wall of the ring 801 is fixedly connected to the front shell 802. The inner wall of the ring 801 is rotatably connected to the silicone block 803.

[0032] The outer wall of the hook and loop fastener 7 is fixedly connected to the back shell 9, the outer wall of the back shell 9 is fixedly connected to the cup frame 10, the rear end of the silicone block 803 is fixedly connected to the round block 604, and the lower end of the second box 2 is equipped with a wheel 11.

[0033] Working principle:

[0034] By inserting the front housing 802 into the surface of the second housing 2 from the front, the circular block 804 and the locking block 603 inside the front housing 802 are inserted into the mounting base 601. Manually rotating the silicone block 803 causes the locking block 603 on the circular block 604 to rotate. The locking block 603 is initially positioned by the guide of the sliding groove 602. Subsequently, the locking block 603 enters the deepest end of the sliding groove 602 to form a tight fit, realizing a stable connection between the circular block 604 and the mounting base 601. The outer wall of the circular block 604 rotates inside the ring 801, ensuring that the reinforcing mechanism 8 can... The angle can be flexibly adjusted to fix the front outer shell 802 to the surface of the second box 2. Similarly, the rear outer shell 9 can be installed on the outside of the first box 1 in the same way. At the same time, the elasticity of the silicone block 803 further enhances the buffering capacity of the connection, preventing the structure from loosening due to external impact. The front outer shell 802 can also be removed from the second box 2 in reverse operation, and the rear outer shell 9 can be removed from the first box 1 in the same way, so that the second box 2 and the first box 1 can be combined into a lightweight polyester trolley case, providing a convenient operating experience in a variety of usage scenarios.

[0035] The rear outer shell 9 is tightly attached to the outer wall of the first case 1 by the hook-and-loop fastener 7 and the loop fastener 5, so that the inner edge of the rear outer shell 9 is fixed to the outer wall of the first case 1, forming an additional fixed protection effect. Similarly, the front outer shell 802 and the edge of the second case 2 have the same structure. The design of the cup frame 10 makes it more convenient to carry drinks in the suitcase. At the same time, the front outer shell 802 and the rear outer shell 9 are made of high-strength PC material and are fitted on the outside of the first case 1 and the second case 1, which effectively improves the wear resistance and impact resistance of the case.

[0036] The first case 1 and the second case 2 are tightly connected by zipper 3 to ensure that they will not be easily opened by external force during transportation. The pull rod body 4 adopts a multi-section telescopic design, which allows users to adjust the length freely as needed to improve the comfort of use. The wheels 11 are fixed to the lower end of the second case 2 by bolts. They are made of high-strength wear-resistant rubber and can maintain smooth sliding under different terrain conditions, reducing wear and noise. The overall structure is compact and versatile, which not only meets the needs of daily use, but also greatly improves the durability and practicality of the suitcase.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength wear-resistant trolley case, comprising a first case body (1) and a second case body (2), characterized in that: The outer wall of the first box (1) is fixedly connected to the zipper (3), the outer wall on the other side of the zipper (3) is fixedly connected to the second box (2), the inner wall of the first box (1) is equipped with a pull rod body (4), the outer wall of the first box (1) is fixedly connected to the hook and loop fastener (5), and the outer wall of the second box (2) is connected to an installation mechanism (6).

2. The high-strength wear-resistant trolley case according to claim 1, characterized in that: The installation mechanism (6) includes a mounting base (601), the outer wall of which is fixedly connected to the second housing (2), the inner wall of which is machined with a sliding groove (602), the inner wall of which abuts against a locking block (603), and the outer wall of which is fixedly connected to a round block (604).

3. The high-strength wear-resistant trolley case according to claim 2, characterized in that: The outer wall of the hook and loop fastener (5) is fixedly connected to the hook and loop fastener (7), and the outer wall of the round block (604) is connected to a reinforcing mechanism (8).

4. The high-strength wear-resistant trolley case according to claim 3, characterized in that: The reinforcement mechanism (8) includes a ring (801), the inner wall of the ring (801) is rotatably connected to a circular block (604), the outer wall of the ring (801) is fixedly connected to the front shell (802), and the inner wall of the ring (801) is rotatably connected to a silicone block (803).

5. The high-strength wear-resistant trolley case according to claim 3, characterized in that: The outer wall of the hook and loop fastener (7) is fixedly connected to the back shell (9), and the outer wall of the back shell (9) is fixedly connected to the cup frame (10).

6. The high-strength wear-resistant trolley case according to claim 4, characterized in that: The rear end of the silicone block (803) is fixedly connected to the round block (604).

7. The high-strength wear-resistant trolley case according to claim 1, characterized in that: The lower end of the second box (2) is equipped with wheels (11).