Wear-resistant printed draw-bar box
Through the adjustable base height and built-in charging device design, the problem of easy wear and single functionality of the bottom of the wear-resistant printed trolley case is solved, achieving higher wear resistance and convenient charging functions.
Patent Information
- Application Number
- CN202422063824.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The existing wear-resistant printed trolley case is prone to wear and tear during long-term use, and has a single function, which has failed to effectively solve the charging needs of electronic devices.
Design a trolley case with adjustable base height, adjust the base height with sliders and fixing bolts to reduce wear, and a charging device is built into the case for charging function.
It improves the wear resistance and functionality of the trolley case, enhances the wear resistance of the bottom, and provides a convenient charging solution for electronic devices.
Smart Images

Figure CN223183071U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wear resistance, in particular to a wear-resistant printed trolley case. Background Art
[0002] In the fast-paced modern life, as an essential companion for travel and daily commuting, the continuous improvement of the performance and functions of trolley cases has become the focus of consumers' attention. Although the trolley cases on the current market have widely adopted various high-end materials to enhance durability and incorporated printed designs to enhance visual beauty, there are still limitations in terms of wear resistance and functionality that cannot be ignored.
[0003] In terms of wear resistance, existing wear-resistant printed trolley cases are prone to minor scratches or even damage on the bottom surface during long-term dragging. This wear not only affects the aesthetics of the trolley case, but also reduces its service life. Existing trolley cases are often limited to basic storage functions in terms of functionality, and rarely consider the charging needs of electronic devices that are indispensable in modern travel. For example, built-in power banks or support for external power charging will greatly enhance the user's travel experience.
[0004] Therefore, in order to solve the problems that the bottom of the existing wear-resistant printed trolley case is easily worn and has a single functionality, a wear-resistant printed trolley case with an adjustable base height and a charging function can be designed. Utility Model Content
[0005] In order to overcome the problem that the bottom of the existing printed trolley case is easily worn and has poor functionality.
[0006] The technical solution of the present utility model is as follows: a wear-resistant printed trolley case, comprising a case body; a telescopic pull rod, a fixed plate fixedly connected to the front end of the case body, a wear-resistant strip fixedly installed on the side of the case body, a base fixedly connected to the lower end of the case body, a fixed shell fixedly installed at the lower end of the base, a fixing bolt provided on the surface of the fixed shell, a slider installed at the lower end of the fixed shell, and a roller installed at the lower end of the slider. A positioning hole is provided on the surface of the slider, a snap seat is fixedly connected to the right side of the case body surface, a baffle is slidably connected to the inside of the snap seat, a storage slot is provided on the surface of the case body inside the snap seat, a charging device is slidably connected to the inside of the storage slot, a partition is provided at the bottom of the storage slot, and the partition and the inner wall of the bottom of the storage slot are movably connected by a spring.
[0007] Preferably, the telescopic pull rod is fixedly connected between the fixed plate and the box body, a handle is provided on the upper end surface of the box body, and a secondary handle is provided in the center of the right end surface of the box body, which is convenient for lifting, pulling, and raising the box body in different scenarios.
[0008] Preferably, the wear-resistant strip is made of rubber, and the outer end surface of the wear-resistant strip is designed with a rounded structure, so that the overall wear resistance is improved by the wear-resistant strip on the outside of the box.
[0009] Preferably, four fixed shells are provided, and a slide rail groove is provided on the surface of the fixed shell. The slider and the fixed shell are slidably connected through the slide rail groove, so as to facilitate adjustment of the height of the base.
[0010] Preferably, the fixing shell is threadedly connected to the fixing bolt, three positioning holes are evenly spaced, and the fixing bolt is threadedly connected to the positioning hole, which facilitates fixing the slider to prevent the slider from moving due to external force.
[0011] Preferably, two engaging seats are symmetrically arranged on the left and right sides of the box body, and the length and width of the baffle are adapted to the length and width of the storage slot, so as to facilitate the storage of the charging device.
[0012] Preferably, a charging interface is provided on the surface of the charging device, and a battery is provided inside the charging device. After the baffle is pulled out, the spring pushes the charging device through the partition to make it pop out, which facilitates the removal and storage of the charging device and recharges electronic devices, thereby improving functionality.
[0013] Beneficial effects of the utility model:
[0014] 1. For this wear-resistant printed trolley case, unscrew the fixing bolts and adjust the length of the slider. When the appropriate length is reached, screw the fixing bolts through the fixing shell and into the positioning holes on the surface of the slider. The above operation increases the height of the base of the case from the bottom surface, reduces the friction of the bottom on the ground, and improves the wear resistance.
[0015] 2. For the wear-resistant printed trolley case, pull out the baffle, and the spring pushes the partition outward. The partition pushes the charging device out of the storage slot, making it convenient to take out the charging device for use. After use, push the charging device into the storage slot until it is flush with the snap seat, and insert the baffle into the snap seat. The charging device can be taken out and put in through the above steps, which adds a charging function to the trolley case and improves the functionality of the trolley case. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a wear-resistant printed trolley case of the present invention;
[0017] Figure 2 Shown is a schematic diagram of a top-view cross-sectional structure of a wear-resistant printed trolley case of the present invention;
[0018] Figure 3 Shown is a schematic diagram of the structure of the adjustable moving wheels of a wear-resistant printed trolley case of the present invention;
[0019] Figure 4 Shown is a schematic diagram of the structure of a wear-resistant printed trolley case moving wheel of the present invention.
[0020] Explanation of the accompanying drawings: 1. Box body; 12. Wear-resistant strip; 13. Fixed plate; 2. Telescopic pull rod; 21. Handle; 22. Secondary handle; 3. Slider; 31. Fixed shell; 32. Roller; 33. Positioning hole; 34. Fixing bolt; 36. Slide rail groove; 4. Base; 5. Baffle; 51. Engaging seat; 52. Charging device; 53. Partition; 54. Spring; 55. Storage slot. DETAILED DESCRIPTION
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] See also Figure 1-Figure 3 The utility model provides an embodiment: a wear-resistant printed trolley case, comprising a wear-resistant printed trolley case, comprising a box body 1; further comprising a telescopic pull rod 2, a fixed plate 13 fixedly connected to the front end of the box body 1, a wear-resistant strip 12 fixedly installed on the side of the box body 1, a base 4 fixedly connected to the lower end of the base 4, a fixed shell 31 fixedly installed on the lower end of the base 4, a fixing bolt 34 is provided on the surface of the fixed shell 31, a slider 3 is installed on the lower end of the fixed shell 31, a roller 32 is installed on the lower end of the slider 3, a positioning hole 33 is provided on the surface of the slider 3, a snap seat 51 is fixedly connected to the right side of the surface of the box body 1, a baffle 5 is slidably connected to the inside of the snap seat 51, a storage groove 55 is provided on the surface of the box body 1 on the inner side of the snap seat 51, and the storage groove 55 is provided 5 is slidably connected to the inside of the charging device 52, and a partition 53 is provided at the bottom of the storage groove 55. The partition 53 and the inner wall of the bottom of the storage groove 55 are movably connected by a spring 54. The telescopic pull rod 2 is fixedly connected between the fixed plate 13 and the box body 1. The upper end surface of the box body 1 is provided with a handle 21, and the center of the right end surface of the box body 1 is provided with a secondary handle 22. The wear-resistant strip 12 is made of rubber, and the outer end surface of the wear-resistant strip 12 is a rounded structure design. The addition of the storage groove 55 can be used to place the charging device 52 for storage, which is convenient for taking and placing, and charging and using electronic devices, thereby improving functionality. At the same time, the height of the bottom roller 32 is adjustable, thereby changing the distance between the base 4 and the ground, adapting to different road conditions, reducing the wear of the ground protrusions on the bottom of the box body 1, and ensuring wear resistance.
[0023] See also Figure 1 、 Figure 3 and Figure 4In this embodiment, four fixing shells 31 are provided, and a sliding rail groove 36 is opened on the surface of the fixing shell 31. The slider 3 and the fixing shell 31 are slidably connected through the sliding rail groove 36. The fixing shell 31 is threadedly connected with the fixing bolt 34. There are three positioning holes 33 distributed at equal intervals, and the fixing bolt 34 is threadedly connected with the positioning holes 33. When in use, the fixing bolt 34 is unscrewed from the surface of the fixing shell 31, and the slider 3 slides vertically along the sliding rail groove 36 inside the fixing shell 31. When the extended length reaches the appropriate length, the fixing bolt 34 is passed through the fixing shell 31 and screwed into the positioning hole 33 on the surface of the slider 3 to fix the extended length of the slider 3. Through the above operation, the height of the base 4 and the bottom surface is increased, the friction on the bottom is reduced, and the wear resistance is improved.
[0024] See also Figure 1 、 Figure 2 In this embodiment, two snap-fit seats 51 are symmetrically arranged on the left and right sides of the box body 1. The length and width of the baffle 5 are adapted to the length and width of the storage slot 55. A charging interface is provided on the surface of the charging device 52, and a battery is provided inside the charging device 52. The charging device 52 is located between the baffle 5 and the partition 53. The left end of the charging device 52 is slidably connected to the partition 53. When in use, the baffle 5 is pulled out, and the spring 54 pushes the partition 53 outward, and the partition 53 pushes the charging device 52 out of the storage slot 55. After use, the charging device 52 is pushed into the storage slot 55 until it is flush with the snap-fit seat 51, and the baffle 5 is inserted into the snap-fit seat 51, which adds a charging function to the trolley case and improves its functionality.
[0025] When in use, the telescopic pull rod 2 is pulled to move on a flat road surface, and the box body 1 is lifted and moved by the grip 21 and the secondary grip 22. When the road slope is large or there are too many potholes, the fixing state of the adjustment slider 3 can be unlocked by rotating and unscrewing the fixing bolt 34, and then the extended length of the slider 3 can be adjusted according to actual needs. When the slider 3 is adjusted to a suitable length, the user passes the fixing bolt 34 through the fixing shell 31 and screws it into the positioning hole 33 on the surface of the slider 3, thereby fixing the length of the slider 3 and ensuring that unnecessary sliding will not occur due to external force during the movement. The above operations increase the height of the base 4 and the bottom surface. , reducing the friction on the bottom. When the user needs to charge the electronic device, he only needs to gently pull out the baffle 5. At this time, the spring 54 will automatically release energy, pushing the partition 53 to move outward, and then pushing the charging device 52 out of the storage slot 55, making it convenient for the user to quickly access it. The design of the charging device 52 takes into account portability and versatility, and can be adapted to a variety of electronic devices. After use, the user only needs to push the charging device 52 back into the storage slot 55 until its surface is flush with the snap seat 51, and then insert the baffle 5 into the snap seat 51 to achieve quick storage of the charging device 52, which saves space and keeps the appearance of the suitcase neat.
[0026] Through the above steps, the wear-resistant printed trolley case can be flexibly adjusted to the desired extension length of the slider 3 by loosening the fixing bolt 34. The bolt is then passed through the fixing shell 31 and tightened into the positioning hole 33 on the slider 3, effectively increasing the distance between the base 4 and the ground. This not only reduces direct contact and friction between the bottom and the ground, but also significantly enhances the wear resistance of the trolley case.
Claims
1. A wear-resistant printed trolley case, comprising a case body (1); characterized in that: The invention also includes a telescopic pull rod (2), a fixed plate (13) is fixedly connected to the front end of the box body (1), a wear-resistant strip (12) is fixedly installed on the side of the box body (1), a base (4) is fixedly connected to the lower end of the box body (1), a fixed shell (31) is fixedly installed on the lower end of the base (4), a fixing bolt (34) is provided on the surface of the fixed shell (31), a slider (3) is installed on the lower end of the fixed shell (31), a roller (32) is installed on the lower end of the slider (3), and the surface of the slider (3) is open. A positioning hole (33) is provided, a snap-fit seat (51) is fixedly connected to the right side of the surface of the box body (1), a baffle (5) is slidably connected inside the snap-fit seat (51), a receiving groove (55) is provided on the surface of the box body (1) on the inner side of the snap-fit seat (51), a charging device (52) is slidably connected inside the receiving groove (55), a partition (53) is provided at the bottom of the receiving groove (55), and the partition (53) and the inner wall of the bottom of the receiving groove (55) are movably connected via a spring (54).
2. The wear-resistant printed trolley case according to claim 1, characterized in that: The telescopic pull rod (2) is fixedly connected between the fixed plate (13) and the box body (1); a handle (21) is provided on the upper end surface of the box body (1); and a secondary handle (22) is provided at the center of the right end surface of the box body (1).
3. The wear-resistant printed trolley case according to claim 1, characterized in that: The wear-resistant strip (12) is made of rubber, and the outer end surface of the wear-resistant strip (12) is designed as a rounded structure.
4. The wear-resistant printed trolley case according to claim 1, characterized in that: Four fixed shells (31) are provided, and a slide rail groove (36) is provided on the surface of the fixed shell (31). The slider (3) and the fixed shell (31) are slidably connected via the slide rail groove (36).
5. The wear-resistant printed trolley case according to claim 1, characterized in that: The fixing shell (31) and the fixing bolt (34) are threadedly connected, three positioning holes (33) are distributed at equal intervals, and the fixing bolt (34) and the positioning holes (33) are threadedly connected.
6. The wear-resistant printed trolley case according to claim 1, characterized in that: Two engaging seats (51) are symmetrically arranged on the left and right sides of the box body (1), and the length and width of the baffle (5) are adapted to the length and width of the receiving slot (55).
7. The wear-resistant printed trolley case according to claim 1, characterized in that: A charging interface is provided on the surface of the charging device (52), and a storage battery is provided inside the charging device (52).