Suitcase with detachable pull rod
By designing a detachable pull rod and protective corner structure, the problem of damage to the suitcase during collisions is solved, enabling convenient replacement of the pull rod and protection of the suitcase body, thus improving the practicality and aesthetics of the suitcase.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN RUIYANG SUITCASE & LUGGAGE LEATHER CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-10
AI Technical Summary
Existing suitcases with detachable handles are prone to tipping over when subjected to external impacts, damaging the handle and the suitcase body, rendering them unusable.
The design incorporates a detachable pull rod and protective corner structure. The pull rod can be easily detached via a button and locking pin system, and protective corners are provided at the corners of the box to reduce impact. A spring and ball joint structure is used to enhance protection.
The pull rod can be quickly disassembled and replaced when damaged, and the protective corners reduce damage to the suitcase body, improving the practicality and aesthetics of the suitcase.
Smart Images

Figure CN224098891U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of travel case, especially a travel case with detachable pull rod. BACKGROUND
[0002] The travel case is a kind of luggage with certain volume and structure, used to store travel articles. It is usually made of solid materials such as plastic, aluminum alloy, leather, etc., with durability and protection. The travel case is designed with a pull rod and wheels, making it easy to carry and move, and meeting the needs of people to organize and carry clothes, daily necessities, etc. during travel. Therefore, a travel case with detachable pull rod is more cost-effective, as the pull rod can be replaced directly when it is damaged, and the travel case can continue to be used.
[0003] The existing travel case with detachable pull rod is fixed on the travel case by bolts. When disassembling, only need to unscrew the bolts, or set corresponding latches and slots on the pull rod and travel case, and fix the pull rod by inserting the latches into the slots. When disassembling, only need to pull out the latches, or set corresponding buckles on the pull rod and travel case, and fix the pull rod by buckling. When disassembling, only need to press the buckles, and connect the pull rod and travel case together by zipper. When disassembling, only need to pull open the zipper. These ways can realize the disassembly of the pull rod of the travel case.
[0004] However, during the use of the travel case with detachable pull rod, the problem that when the travel case encounters external collision, it is easy to cause the case to fall down, thereby causing damage to the pull rod part and the case part, making the pull rod unable to be detached, and finally making the entire luggage case unable to continue normal use has not been solved, affecting the practicability of the travel case with detachable pull rod. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a travel case with detachable pull rod, aiming to improve the problem that when the travel case encounters external collision, it is easy to cause the case to fall down, thereby causing damage to the pull rod part and the case part, making the pull rod unable to be detached, and finally making the entire luggage case unable to continue normal use.
[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of travel suitcase of detachable pull rod, including box, the box outer wall is provided with combination lock, the box outer wall is fixedly connected with multiple hinges, the box outer wall is fixedly connected multiple universal wheel, the box outer wall is slidably connected with pull rod case, the pull rod case inner wall is slidably connected with multiple telescopic rods, each telescopic rod one side is slidably connected with limit post, the telescopic rod one end is fixedly connected with handle, the handle one side is slidably connected with pressing block, the pull rod case one side is fixedly connected with multiple clamping blocks, the pull rod case inner wall is slidably connected with button, the button one side is fixedly connected with multiple connecting rods, the pull rod case inner wall is slidably connected with clamping pin, the clamping pin one end is fixedly connected with reset component, and the reset component is used to reset clamping pin, and the button one end is fixedly connected with multiple spring two.
[0007] As further description of the above technical solution:
[0008] The reset component includes spring one and fixed plate, and the spring one end is fixedly connected at the clamping pin one end, and the spring one other end is fixedly connected at the fixed plate one side.
[0009] As further description of the above technical solution:
[0010] The box outer wall is slidably connected with multiple protective corners, and the box outer wall is provided with multiple sliding grooves.
[0011] As further description of the above technical solution:
[0012] The protective corner inner wall is fixedly connected with clamping strip, and the protective corner one end is provided with sliding slope one.
[0013] As further description of the above technical solution:
[0014] The protective corner inner wall is provided with sliding slope opening, and the protective corner one side is provided with fixed opening.
[0015] As further description of the above technical solution:
[0016] The box inner wall is fixedly connected with multiple spring three, and the spring three one end is fixedly connected with extrusion column.
[0017] As further description of the above technical solution:
[0018] The extrusion column outer wall is fixedly connected with limit plate, and the extrusion column one end is fixedly connected with sliding ball.
[0019] As further description of the above technical solution:
[0020] The spring three one end is fixedly connected at the box inner wall, and the spring three other end is fixedly connected at the extrusion column one end.
[0021] The utility model has the advantages of the following:
[0022] 1. The utility model discloses a detachable pull rod travel suitcase, which comprises a box body, a pull rod and a fixing assembly, wherein the pull rod is arranged on the box body and can be detached and replaced, and the fixing assembly is arranged on the box body and is used for fixing the pull rod.
[0023] 2. The utility model discloses a detachable pull rod travel suitcase, which comprises a box body, a pull rod and a fixing assembly, wherein the pull rod is arranged on the box body and can be detached and replaced, and the fixing assembly is arranged on the box body and is used for fixing the pull rod. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 A detachable pull rod travel suitcase is provided.
[0025] Figure 2 A detachable pull rod travel suitcase is provided.
[0026] Figure 3 A detachable pull rod travel suitcase is provided. Figure 2 An enlarged view of position A in FIG.
[0027] Figure 4 A detachable pull rod travel suitcase is provided.
[0028] Figure 5 A detachable pull rod travel suitcase is provided.
[0029] Figure 6 A detachable pull rod travel suitcase is provided.
[0030] Figure 7 An enlarged view of position B in FIG. Figure 6
[0031] LEGEND:
[0032] 1, box; 2, password lock; 3, universal wheel; 4, draw-bar box; 5, telescopic rod; 6, limit column; 7, handle; 8, pressing block; 9, clamping block; 10, button; 11, connecting rod; 12, clamping pin; 13, spring one; 14, fixed plate; 15, spring two; 16, hinge; 17, protective corner; 18, clamping strip; 19, landslide one; 20, landslide two; 21, fixed port; 22, spring three; 23, extrusion column; 24, limit plate; 25, sliding ball; 26, sliding groove. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0034] Referring to Figures 1-4 , the utility model provides an embodiment: a kind of detachable draw-bar travel suitcase, including box 1, password lock 2 is arranged on the outer wall of box 1, box 1 outer wall is fixedly connected with multiple hinges 16, and mechanical condition is provided for the activity of box 1, the outer wall of box 1 is fixedly connected with multiple universal wheels 3, so that box 1 can slide at will, draw-bar box 4 is slidably connected to the outer wall of box 1, multiple telescopic rods 5 are slidably connected to the inner wall of draw-bar box 4, one side of each telescopic rod 5 is slidably connected to limit column 6, and the displacement distance of telescopic rod 5 is limited, handle 7 is fixedly connected to one end of telescopic rod 5, pressing block 8 is slidably connected to one side of handle 7, the telescopic degree of limit column 6 is changed to change the telescopic state of telescopic rod 5, multiple clamping blocks 9 are fixedly connected to one side of draw-bar box 4, for clamping draw-bar box 4 on the outer wall of box 1, button 10 is slidably connected to the inner wall of draw-bar box 4, multiple connecting rods 11 are fixedly connected to one side of button 10, clamping pin 12 is slidably connected to the inner wall of draw-bar box 4, and draw-bar box 4 is clamped to prevent it from shaking, one end of clamping pin 12 is fixedly connected with reset assembly, and reset assembly is used to reset clamping pin 12, one end of button 10 is fixedly connected with multiple spring two 15, to provide force support for the pressing of button 10, reset assembly includes spring one 13 and fixed plate 14, one end of spring one 13 is fixedly connected to one end of clamping pin 12, and the other end of spring one 13 is fixedly connected to one side of fixed plate 14.
[0035] Specifically, the universal wheel 3 is installed at the bottom of the box body 1 and presents a state of one at each of the four corners. This installation mode enables the box body 1 to be stably placed on the ground and to be flexibly moved. Meanwhile, the telescopic rods 5 are installed in a mutually parallel manner and keep a certain distance from each other, thereby providing mechanical support for the stretching and contraction of the handle 7. The box body 1 is also provided with a clamping groove in which the clamping block 9 is fixed. In this way, the trolley case 4 can be more stably fixed on the box body 1 and is not prone to shaking. When the button 10 is pressed, it drives the connecting rod 11 to move inward. The connecting rod 11 has a protrusion which slides into the clamping pin 12 along the slide of the clamping pin 12 and drives the clamping pin 12 to slide inward, so as to finally separate the trolley case 4 from the box body 1.
[0036] Referring to Figures 5-7 The box body 1 is provided with a plurality of protective corners 17 which are slidably connected to the outer wall of the box body 1. The corners of the box body 1 are not easily damaged. The box body 1 is provided with a plurality of sliding grooves 26. The inner wall of each protective corner 17 is fixedly connected with a clamping strip 18. The clamping strip 18 clamps the movable range of the protective corner 17, so that the protective corner 17 is fixedly connected to the box body 1. One end of each protective corner 17 is provided with a sliding slope one 19. The inner wall of each protective corner 17 is provided with a sliding slope two 20. One side of each protective corner 17 is provided with a fixing port 21 for fixing the position of the sliding ball 25. The inner wall of the box body 1 is fixedly connected with a plurality of springs three 22. One end of the spring three 22 is fixedly connected with a pressing column 23. The outer wall of the pressing column 23 is fixedly connected with a limiting plate 24 for limiting the displacement range of the pressing column 23. One end of the pressing column 23 is fixedly connected with the sliding ball 25. One end of the spring three 22 is fixedly connected to the inner wall of the box body 1. The other end of the spring three 22 is fixedly connected to one end of the pressing column 23.
[0037] Specifically, the sliding slope one 19 and the sliding slope two 20 are specially provided on the protective corner 17. When the sliding ball 25 contacts the protective corner 17, the sliding ball 25 slides along the sliding slope one 19 or the sliding slope two 20 due to the slope. In this way, the protective corner 17 can be completely released, thereby facilitating replacement. Meanwhile, the size of the sliding groove 26 and the size of the clamping strip 18 can be adjusted according to actual conditions, so as to better adapt to different use requirements. In addition, the direction of the entire fixing device can be changed according to actual conditions to meet various different scenes and use requirements, so that the protective corner 17 and the related devices are more flexible, convenient and efficient in use.
[0038] Working principle: in the process of using the travel suitcase with detachable pull rod, first put the articles needed to be put into the suitcase 1, then close the suitcase 1 and lock it, at this time take out the pull rod suitcase 4 corresponding to the suitcase 1, press the button 10 and then install it into the outer wall of the suitcase 1 along the slot opened on the suitcase 1, then release the button 10 to fix it on the suitcase 1, then install the protective corner 17 on each corner of the suitcase 1, when the suitcase 1 is impacted and the telescopic rod 5 or handle 7 inside the pull rod suitcase 4 is damaged, the pull rod suitcase 4 cannot be used normally, press the button 10 and then lift the pull rod suitcase 4 up to detach it from the suitcase 1, then put the new pull rod suitcase 4 into the suitcase 1 to restore its normal use, when the protective corner 17 is deformed due to impact and extrusion, press the sliding ball 25 on one side of the corresponding deformed protective corner 17 and slide it in the opposite direction of the sliding groove 26 to detach it, then replace the new protective corner 17.
[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A travel suitcase with a detachable trolley, comprising a suitcase body (1), characterized in that: The outer wall of the box (1) is provided with a password lock (2), the outer wall of the box (1) is fixedly connected with a plurality of hinges (16), the outer wall of the box (1) is fixedly connected with a plurality of universal wheels (3), the outer wall of the box (1) is slidably connected with a draw-bar box (4), the inner wall of the draw-bar box (4) is slidably connected with a plurality of telescopic rods (5), one side of each telescopic rod (5) is slidably connected with a limiting column (6), one end of the telescopic rod (5) is fixedly connected with a handle (7), one side of the handle (7) is slidably connected with a pressing block (8), one side of the draw-bar box (4) is fixedly connected with a plurality of clamping blocks (9), the inner wall of the draw-bar box (4) is slidably connected with a button (10), one side of the button (10) is fixedly connected with a plurality of connecting rods (11), the inner wall of the draw-bar box (4) is slidably connected with a clamping pin (12), one end of the clamping pin (12) is fixedly connected with a reset assembly, the reset assembly is used for resetting the clamping pin (12), one end of the button (10) is fixedly connected with a plurality of springs (15).
2. The travel suitcase of claim 1, wherein: The reset assembly comprises a spring (13) and a fixed plate (14), one end of the spring (13) is fixedly connected with one end of the clamping pin (12), and the other end of the spring (13) is fixedly connected with one side of the fixed plate (14).
3. The travel bag of claim 1, wherein: The outer wall of the box (1) is slidably connected with a plurality of protective corners (17), and the outer wall of the box (1) is provided with a plurality of sliding grooves (26).
4. A travel case according to claim 3, wherein: The inner wall of each protective corner (17) is fixedly connected with a clamping strip (18), and one end of each protective corner (17) is provided with a sliding slope (19).
5. The travel bag of claim 3, wherein: The inner wall of each protective corner (17) is provided with a sliding slope (20), and one side of each protective corner (17) is provided with a fixing opening (21).
6. The travel bag of claim 1, wherein: The inner wall of the box (1) is fixedly connected with a plurality of springs (22), and one end of the spring (22) is fixedly connected with a pressing column (23).
7. A travel case according to claim 6 wherein: The outer wall of the pressing column (23) is fixedly connected with a limiting plate (24), and one end of the pressing column (23) is fixedly connected with a sliding ball (25).
8. The travel bag of claim 6, wherein: One end of the spring (22) is fixedly connected to the inner wall of the box (1), and the other end of the spring (22) is fixedly connected to one end of the pressing column (23).