Damp-proof draw-bar box

Abstract

The utility model relates to the technical field of draw-bar boxes, and discloses a moisture-proof draw-bar box which comprises a box body, a mounting seat is arranged at the bottom of the box body, a hollow column is slidably connected in the mounting seat, the hollow column is slidably connected in the box body, a bolt is in threaded connection in the hollow column, a knob is fixedly connected to the top end of the bolt, and the knob is fixedly connected to the bottom of the box body. A connecting column is slidably connected to the interior of the bolt, a conical column is fixedly connected to the bottom end of the connecting column, the outer wall of the connecting column is sleeved with a first spring, one end of the first spring is fixedly connected to the interior of the bolt, and the other end of the first spring is fixedly connected to the interior of the conical column. According to the utility model, the balls are driven to work through the mounting seat and the hollow column, so that the effect of automatically and quickly replacing the wheels is realized, and the problem that a user cannot quickly disassemble, assemble and replace the wheels by himself when the wheels of the draw-bar box are damaged and need to be replaced in the use process is solved, thereby improving the flexibility of the draw-bar box.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley cases, in particular to a moisture-proof trolley case. Background Art

[0002] A trolley case is a type of luggage, usually used for traveling or carrying items. It generally consists of a case with a telescopic handle and two or four wheels, allowing it to roll easily on the ground. The design of the trolley case enables users to conveniently pull or push it without having to bear excessive weight. This type of luggage is commonly used in travel locations such as airports, train stations, and hotels, providing convenience and comfort for travelers.

[0003] A traditional trolley case usually consists of a shell, a telescopic handle, wheels, and safety devices such as zippers or buckles, which are used to protect the contents inside from damage. The handle facilitates users to pull or push the case, the wheels enable the case to roll easily on the ground, and the zipper or buckle is used to ensure that the items inside the case do not fall or get lost during movement. These components together constitute the functions and features of a traditional trolley case, making it an indispensable and convenient tool for traveling.

[0004] However, the wheel part of a traditional trolley case is usually relatively fixed. When it needs to be replaced due to damage, only professional personnel can use professional tools to replace the wheels. The process is relatively cumbersome. As a result, when the wheels of a traditional trolley case are damaged during use, users cannot immediately obtain the help of professional personnel and are unable to disassemble and replace the wheels quickly by themselves, which affects the applicability of the trolley case. Therefore, a moisture-proof trolley case is proposed to solve the above problems. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a moisture-proof trolley case, aiming to improve the problem that when the wheels of a trolley case are damaged during use and need to be replaced, users cannot disassemble and replace the wheels quickly by themselves in the prior art.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A moisture-proof trolley case, comprising a box body. An installation seat is arranged at the bottom of the box body. A hollow column is slidably connected inside the installation seat. The hollow column is slidably connected inside the box body. A bolt is threadedly connected inside the hollow column. The top end of the bolt is fixedly connected with a knob. A connecting column is slidably connected inside the bolt. The bottom end of the connecting column is fixedly connected with a tapered column. A first spring is sleeved on the outer wall of the connecting column. One end of the first spring is fixedly connected inside the bolt, and the other end of the first spring is fixedly connected inside the tapered column. An empty groove is formed inside the hollow column. A ball is arranged inside the hollow column. The ball is slidably connected inside the empty groove, and the ball is in contact with the empty groove. A moving component is arranged inside the installation seat;

[0008] As a further description of the above technical solution:

[0009] The moving component includes a moving wheel. One end of the outer wall of the moving wheel is rotatably connected inside the installation seat;

[0010] As a further description of the above technical solution:

[0011] A moisture-proof layer is arranged inside the box body, and a first partition belt is arranged inside the box body;

[0012] As a further description of the above technical solution:

[0013] A second partition belt is arranged inside the box body. One side of the second partition belt is fixedly connected with a connecting frame one;

[0014] As a further description of the above technical solution:

[0015] One side of the first partition belt is fixedly connected with a connecting frame two. A fixing block is fixedly connected inside the connecting frame two. The connecting frame one is slidably connected to the outer wall of the fixing block;

[0016] As a further description of the above technical solution:

[0017] A limiting block is fixedly connected inside the connecting frame two. A buckle is arranged inside the connecting frame one. The buckle is in contact with the limiting block;

[0018] As a further description of the above technical solution:

[0019] One side of the buckle is fixedly connected with a pressing block. The bottom of the pressing block is fixedly connected with a sliding column. The sliding column is slidably connected inside the connecting frame one;

[0020] As a further description of the above technical solution:

[0021] A second spring is sleeved on the outer wall of the sliding column. One end of the second spring is fixedly connected inside the pressing block, and the other end of the second spring is fixedly connected inside the first connecting frame.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the structures of the mounting seat, hollow column, bolt, knob, connecting column and conical column to drive the ball structure to work, the effect of quickly replacing the wheels by itself is realized, and the problem that when the wheels of the trolley case are damaged during use and need to be replaced, the user cannot quickly disassemble and replace the wheels by himself is solved, thereby improving the flexibility of the trolley case.

[0024] 2. In the utility model, with the cooperation of the structures of the first connecting frame, second connecting frame, fixing block, limiting block, buckle, pressing block and second spring, the first partition belt and the second partition belt work, achieving the effect of being able to block and classify the inside of the trolley case according to needs, and solving the problem that the internal space of the trolley case cannot be classified according to its own needs, and when the items are placed chaotically inside, they are prone to extrusion and collision with each other, thereby improving the applicability of the trolley case. Description of the Drawings

[0025] Figure 1 is a three-dimensional schematic diagram of a moisture-proof trolley case proposed by the utility model;

[0026] Figure 2 is a schematic diagram of the bottom structure of the box body of a moisture-proof trolley case proposed by the utility model;

[0027] Figure 3 is a schematic cross-sectional view of the mounting seat of a moisture-proof trolley case proposed by the utility model;

[0028] Figure 4 is a schematic cross-sectional view of the hollow column of a moisture-proof trolley case proposed by the utility model;

[0029] Figure 5 is a schematic diagram of the internal structure of the box body of a moisture-proof trolley case proposed by the utility model;

[0030] Figure 6 is a schematic cross-sectional view of the connecting frame of a moisture-proof trolley case proposed by the utility model.

[0031] Legend Explanation:

[0032] 1. Box body; 2. Mounting seat; 3. Movable wheel; 4. Hollow column; 5. Bolt; 6. Knob; 7. Connecting column; 8. First spring; 9. Tapered column; 10. Empty slot; 11. Ball; 12. Moisture-proof layer; 13. First partition band; 14. Second partition band; 15. Connecting frame one; 16. Connecting frame two; 17. Fixed block; 18. Limiting block; 19. Snap; 20. Pressing block; 21. Slide column; 22. Second spring. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0034] Refer to Figures 2 - 4 , an embodiment provided by the present invention: a moisture-proof trolley case, including a box body 1, a mounting seat 2 is arranged at the bottom of the box body 1, a hollow column 4 is slidably connected inside the mounting seat 2, the hollow column 4 is slidably connected inside the box body 1, a bolt 5 is threadedly connected inside the hollow column 4, the top end of the bolt 5 is fixedly connected with a knob 6, a connecting column 7 is slidably connected inside the bolt 5, the bottom end of the connecting column 7 is fixedly connected with a tapered column 9, a first spring 8 is sleeved on the outer wall of the connecting column 7, one end of the first spring 8 is fixedly connected inside the bolt 5, the other end of the first spring 8 is fixedly connected inside the tapered column 9, an empty slot 10 is opened inside the hollow column 4, balls 11 are arranged inside the hollow column 4, the balls 11 are slidably connected inside the empty slot 10, the balls 11 are in contact with the empty slot 10, a moving component is arranged inside the mounting seat 2, and the moving component includes a movable wheel 3, and one end of the outer wall of the movable wheel 3 is rotatably connected inside the mounting seat 2.

[0035] Specifically, when the moving wheel 3 needs to be replaced, first place the mounting base 2 at the bottom of the box body 1. The mounting base 2 is connected to the outer wall of the moving wheel 3. Then, insert the hollow column 4 into the through holes inside the mounting base 2 and the box body 1. Next, apply force by rotating the knob 6, causing the bolt 5 to move inside the hollow column 4. The movement of the bolt 5 will drive the connecting column 7 connected inside to move, and the connecting column 7 will push the tapered column 9 connected to the bottom end to move. At the same time, the bolt 5 will also squeeze the first spring 8 at the bottom end, causing it to contract. During this process, the movement of the tapered column 9 will exert pressure on the ball 11, causing the ball 11 to slide outwards and be fixed on the empty slot 10 inside the box body 1 through the tapered column 9. In this way, the moving wheel 3 is firmly installed on the box body 1. When disassembly is required, just turn the knob 6 counterclockwise. In this way, the first spring 8 will quickly reset, driving the tapered column 9 back to its original position, so that the ball 11 disengages from the empty slot 10, completing the disassembly, making the operation of replacing the moving wheel 3 simple and fast.

[0036] Refer to Figure 1 、 Figure 5 and Figure 6 As shown in, a moisture-proof layer 12 is provided inside the box body 1, a first partition belt 13 is provided inside the box body 1, a second partition belt 14 is provided inside the box body 1. One side of the second partition belt 14 is fixedly connected to a connecting frame one 15, one side of the first partition belt 13 is fixedly connected to a connecting frame two 16. A fixing block 17 is fixedly connected inside the connecting frame two 16, and the connecting frame one 15 is slidably connected to the outer wall of the fixing block 17. A limiting block 18 is fixedly connected inside the connecting frame two 16, and a buckle 19 is provided inside the connecting frame one 15. The buckle 19 is in contact with the limiting block 18, and one side of the buckle 19 is fixedly connected to a pressing block 20.

[0037] Specifically, when the space inside the box body 1 needs to be classified, first connect the first partition belt 13 and the second partition belt 14 together. During this process, it is necessary to insert the connecting frame one 15 on one side of the second partition belt 14 into the connecting frame two 16 on one side of the first partition belt 13. During the insertion process, the buckle 19 inside the connecting frame one 15 will contact the limiting block 18, thus receiving a certain pressure and contracting. At the same time, the buckle 19 will drive the pressing block 20 connected to one side to move inside the connecting frame one 15, achieving the effect of quick connection.

[0038] Refer to Figure 1 、 Figure 5 and Figure 6 As shown in, a sliding column 21 is fixedly connected to the bottom of the pressing block 20. The sliding column 21 is slidably connected inside the connecting frame one 15. A second spring 22 is sleeved on the outer wall of the sliding column 21. One end of the second spring 22 is fixedly connected to the inside of the pressing block 20, and the other end of the second spring 22 is fixedly connected to the inside of the connecting frame one 15.

[0039] Specifically, the movement of the pressing block 20 applies force to the second spring 22 connected to the bottom, causing it to contract. As a result, the buckle 19 slides into the inside of the connecting frame two 16. Subsequently, the second spring 22 releases the force and rebounds, driving the pressing block 20 and the buckle 19 to reset, so that the buckle 19 is fixed on one side of the limiting block 18, thereby connecting the first partition belt 13 and the second partition belt 14 together and effectively separating the space inside the box body 1. When it is necessary to separate the first partition belt 13 and the second partition belt 14, just press the pressing block 20 and take out the connecting frame one 15 from the connecting frame two 16, enabling the user to conveniently partition and classify the space inside the suitcase according to needs.

[0040] Working principle: When it is necessary to replace the moving wheel 3, first place the mounting seat 2 connected to the outer wall of the moving wheel 3 at the bottom of the box body 1. Then insert the hollow column 4 into the through holes opened in the mounting seat 2 and the box body 1, and rotate the knob 6. The knob 6 is stressed to drive the bolt 5 to move inside the hollow column 4. The bolt 5 is stressed to drive the connecting column 7 connected inside to move. The connecting column 7 is stressed to drive the conical column 9 connected to the bottom end to move. At the same time, the bolt 5 also squeezes the first spring 8 at the bottom end to contract. At this time, the movement of the conical column 9 squeezes the ball 11, and the ball 11 is stressed to slide out of the empty groove 10. At the same time, the ball 11 is blocked by the conical column 9, so that the ball 11 abuts against the inside of the box body 1 to complete the fixation. When disassembling, just turn the knob 6 in the reverse direction. The first spring 8 rebounds to drive the conical column 9 to quickly reset, so that the ball 11 releases the force and slides into the inside of the empty groove 10 to complete the disassembly, thus achieving the effect of being able to quickly replace the moving wheel 3 by oneself. When it is necessary to classify the space inside the box body 1, first insert the connecting frame one 15 on one side of the second partition belt 14 into the connecting frame two 16 on one side of the first partition belt 13. During this process, the buckle 19 inside the connecting frame one 15 contacts the limiting block 18 and then contracts under force. At the same time, the buckle 19 drives the pressing block 20 connected to one side to move inside the connecting frame one 15. The pressing block 20 is stressed to squeeze the second spring 22 connected to the bottom to contract, so that the buckle 19 slides into the inside of the connecting frame two 16. Subsequently, the second spring 22 releases the force and rebounds, and then drives the pressing block 20 and the buckle 19 to reset, so that the buckle 19 is stuck on one side of the limiting block 18 to complete the fixation, thereby connecting the first partition belt 13 and the second partition belt 14 together to separate the space inside the box body 1. When it is necessary to separate the first partition belt 13 and the second partition belt 14, just press the pressing block 20 and take out the connecting frame one 15 from the connecting frame two 16, achieving the effect of being able to partition and classify the inside of the suitcase according to requirements.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A moisture-proof trolley case, comprising a case body (1), characterized in that: A mounting seat (2) is provided at the bottom of the box body (1), a hollow column (4) is slidably connected inside the mounting seat (2), the hollow column (4) is slidably connected inside the box body (1), a bolt (5) is threadedly connected inside the hollow column (4), a knob (6) is fixedly connected to the top of the bolt (5), a connecting column (7) is slidably connected inside the bolt (5), a conical column (9) is fixedly connected to the bottom of the connecting column (7), a first spring (8) is sleeved on the outer wall of the connecting column (7), one end of the first spring (8) is fixedly connected to the inside of the bolt (5), and the other end of the first spring (8) is fixedly connected to the inside of the conical column (9), a hollow groove (10) is provided inside the hollow column (4), a ball (11) is provided inside the hollow column (4), the ball (11) is slidably connected to the inside of the hollow groove (10), the ball (11) and the hollow groove (10) are in contact, and a moving component is provided inside the mounting seat (2).

2. The moisture-proof suitcase according to claim 1, characterized in that: The moving assembly comprises a moving wheel (3), and an outer wall at one end of the moving wheel (3) is rotatably connected to the interior of the mounting seat (2).

3. The moisture-proof suitcase according to claim 1, characterized in that: A moisture-proof layer (12) is provided inside the box body (1), and a first separation zone (13) is provided inside the box body (1).

4. The moisture-proof suitcase according to claim 3, characterized in that: A second dividing strip (14) is provided inside the box body (1), and a connecting frame 1 (15) is fixedly connected to one side of the second dividing strip (14).

5. The moisture-proof suitcase according to claim 4, characterized in that: A second connection frame (16) is fixedly connected to one side of the first dividing strip (13), a fixing block (17) is fixedly connected inside the second connection frame (16), and the first connection frame (15) is slidably connected to the outer wall of the fixing block (17).

6. The moisture-proof suitcase according to claim 5, characterized in that: The second connection frame (16) is internally fixedly connected to a limiting block (18), and the first connection frame (15) is internally provided with a buckle (19), and the buckle (19) is in contact with the limiting block (18).

7. The moisture-proof suitcase according to claim 6, characterized in that: A pressing block (20) is fixedly connected to one side of the buckle (19), a sliding column (21) is fixedly connected to the bottom of the pressing block (20), and the sliding column (21) is slidably connected inside the first connection frame (15).

8. The moisture-proof suitcase according to claim 7, characterized in that: A second spring (22) is sleeved on the outer wall of the sliding column (21), one end of the second spring (22) is fixedly connected to the inside of the pressing block (20), and the other end of the second spring (22) is fixedly connected to the inside of the connecting frame 1 (15).

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