Combined draw-bar box
By designing a combined trolley case, using the guide positioning and clamping structure of the slider and guide rail, the problem of inflexible space utilization of traditional trolley cases is solved, and the function of adjusting the luggage capacity as needed is realized.
Patent Information
- Application Number
- CN202422156703.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-04
AI Technical Summary
Traditional trolley boxes are not flexible enough to use the space and cannot be adjusted according to the specific needs of travelers, resulting in inconvenience when carrying large amounts of luggage.
A combined trolley box is designed, and the fixing and adjustment between the boxes is achieved through the guiding positioning of the slider and the guide rail, combined with the lower clamp, the clamp, the control panel, the telescopic spring, the upper clamp, the transmission rod and other structures.
The function of adding or decreasing the box as needed is realized, allowing travelers to adjust their luggage capacity according to actual conditions, reduce the burden and facilitate management and sorting of luggage.
Smart Images
Figure CN222982600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of trolley cases, and particularly relates to a combined trolley case. Background Art
[0002] A trolley case is a portable luggage case, which is usually equipped with wheels and a telescopic handle, making it easy to carry and move heavy objects. The design of modern trolley cases takes into account practicality and ergonomics, making them an ideal choice for travelers, business people, and students. The case body is usually made of lightweight but strong materials such as polycarbonate or aluminum alloy to protect the contents from impacts and moisture, while reducing the burden during carrying. However, a single trolley case may not meet the needs of all travel scenarios. Therefore, the design of a combined trolley case came into being, which allows users to adjust the capacity by combining or separating the case bodies according to different travel needs.
[0003] Traditional trolley cases are convenient companions for travelers, and their use is simple and intuitive. First, pull out the handle to form a proper angle with the ground for stable towing. Next, open the case lock, neatly place personal items inside the case, and use compartments and pockets for reasonable storage to ensure the safety and tidiness of the items during travel. When the case is full, close and lock the case lid, and use a password lock or a key lock to protect personal belongings.
[0004] The above-mentioned traditional trolley cases are usually used as a whole. When people have a lot of luggage, they often need to carry two trolley cases to store the luggage, and it is very inconvenient to drag two trolley cases, and it cannot be adjusted according to the specific needs of travelers, resulting in inflexible space utilization and certain limitations in terms of flexibility and adaptability. Summary of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a combined trolley case, aiming to improve the problem that it cannot be adjusted according to the specific needs of travelers, resulting in inflexible space utilization and certain limitations in terms of flexibility and adaptability.
[0006] To achieve the above object, the utility model provides the following technical solution: a combined trolley case, including a first box body, an outer wall of the first box body is provided with a second box body, an outer wall of the first box body is fixedly connected with a lower fixture, an outer wall of the second box body is fixedly connected with an upper fixture, the lower fixture is slidably connected inside the upper fixture, a first clamping block is rotatably connected inside the lower fixture, an outer wall of the first clamping block is fixedly connected with a control board, an outer wall of the control board is slidably connected inside the lower fixture, a first telescopic spring is arranged inside the lower fixture, both ends of the first telescopic spring are fixedly connected with a rotating plate, an outer wall of one of the rotating plates is rotatably connected inside the lower fixture, and an outer wall of the other rotating plate is rotatably connected inside the control board; a second clamping block is rotatably connected inside the upper fixture, an outer wall of the second clamping block is fixedly connected with a transmission rod, an outer wall of the transmission rod is slidably connected inside the upper fixture, a second telescopic spring is arranged inside the upper fixture, both ends of the second telescopic spring are fixedly connected with a rotating plate, an outer wall of one of the rotating plates is rotatably connected inside the upper fixture, and an outer wall of the other rotating plate is rotatably connected inside the transmission rod; an outer wall of the first box body is provided with a guiding component for guiding the second box body.
[0007] Further, the guiding component includes a guide rail, an outer wall of the guide rail is fixedly connected to the outer wall of the first box body, a slider is slidably connected to the outer wall of the guide rail, and an outer wall of the slider is fixedly connected to the outer wall of the second box body.
[0008] Further, universal wheels are fixedly connected to lower surfaces of the first box body and the second box body, and a pull rod is arranged inside the first box body.
[0009] Further, anti-collision blocks are fixedly connected to outer walls of the first box body and the second box body, and a spring piece is slidably connected inside the anti-collision block.
[0010] Further, one side of an outer wall of the spring piece is fixedly connected with a first telescopic rod, one end of the first telescopic rod is fixedly connected with a supporting block, and an outer wall of the supporting block is fixedly connected to the outer wall of the first box body.
[0011] Further, a first buffer spring is sleeved on an outer wall of the first telescopic rod, one end of the first buffer spring is fixedly connected inside the supporting block, and the other end of the first buffer spring is fixedly connected to the outer wall of the spring piece.
[0012] Further, a second telescopic rod is fixedly connected to an outer wall of the spring piece, and a second buffer spring is sleeved on an outer wall of the second telescopic rod.
[0013] Further, one end of the second buffer spring is fixedly connected inside the anti-collision block, and the other end of the second buffer spring is fixedly connected to the outer wall of the spring piece.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, first, the box body one and the box body two are guided and positioned through the slider and the guide rail, and then the box bodies are fixed by cooperating with the lower fixture, the first clamping block, the control board, the telescopic spring, the upper fixture, the transmission rod, the second telescopic spring and the rotation, solving the problem that it cannot be adjusted according to the specific needs of travelers, and there are certain limitations in flexibility and adaptability. It achieves the effect that the number of box bodies can be increased or decreased according to the number of items to be carried, enabling travelers to adjust the luggage capacity according to the actual situation, reducing the burden on each person, and also facilitating the management and sorting of luggage.
[0016] 2. In the utility model, first, preliminary protection is carried out through the anti-collision block, and then the external force is buffered by cooperating with the spring piece, the first buffer spring, the second buffer spring and the support block, achieving the protection of the box body. The effective buffer system can absorb the impact force, extend the service life of the trolley case, and reduce the replacement frequency. Description of the Drawings
[0017] Figure 1 is a schematic perspective view of a combined trolley case proposed by the utility model;
[0018] Figure 2 is a schematic structural view of the box body two of a combined trolley case proposed by the utility model;
[0019] Figure 3 is a schematic internal structural view of the lower fixture of a combined trolley case proposed by the utility model;
[0020] Figure 4 is a schematic internal structural view of the box body one of a combined trolley case proposed by the utility model;
[0021] Figure 5 is Figure 4 the enlarged view at A in
[0022] Legend:
[0023] 1. Box body one; 2. Box body two; 3. Slider; 4. Lower fixture; 5. First clamping block; 6. Control board; 7. First telescopic spring; 8. Upper fixture; 9. Second clamping block; 10. Transmission rod; 11. Second telescopic spring; 12. Rotating plate; 13. Universal wheel; 14. Pull rod; 15. Anti-collision block; 16. Spring piece; 17. First telescopic rod; 18. First buffer spring; 19. Support block; 20. Second telescopic rod; 21. Second buffer spring; 22. Guide rail. Detailed Embodiment
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0025] Referring to Figure 1 - Figure 3 , an embodiment provided by the present utility model: a combined trolley case, including a first box body 1, an outer wall of the first box body 1 is provided with a second box body 2, an outer wall of the first box body 1 is fixedly connected with a lower fixture 4, an outer wall of the second box body 2 is fixedly connected with an upper fixture 8, the lower fixture 4 is slidably connected inside the upper fixture 8, a first clamping block 5 is rotatably connected inside the lower fixture 4, an outer wall of the first clamping block 5 is fixedly connected with a control board 6, the outer wall of the control board 6 is slidably connected inside the lower fixture 4, a first telescopic spring 7 is arranged inside the lower fixture 4, both ends of the first telescopic spring 7 are fixedly connected with a rotating plate 12, an outer wall of one of the rotating plates 12 is rotatably connected inside the lower fixture 4, and an outer wall of the other rotating plate 12 is rotatably connected inside the control board 6; a second clamping block 9 is rotatably connected inside the upper fixture 8, an outer wall of the second clamping block 9 is fixedly connected with a transmission rod 10, the outer wall of the transmission rod 10 is slidably connected inside the upper fixture 8, a second telescopic spring 11 is arranged inside the upper fixture 8, both ends of the second telescopic spring 11 are fixedly connected with a rotating plate 12, an outer wall of one of the rotating plates 12 is rotatably connected inside the upper fixture 8, and an outer wall of the other rotating plate 12 is rotatably connected inside the transmission rod 10; a guiding component is arranged on the outer wall of the first box body 1, and the guiding component is used for guiding the second box body 2. The guiding component includes a guide rail 22, the outer wall of the guide rail 22 is fixedly connected to the outer wall of the first box body 1, a slider 3 is slidably connected to the outer wall of the guide rail 22, and the outer wall of the slider 3 is fixedly connected to the outer wall of the second box body 2;
[0026] Specifically, first insert the slider 3 on one side of the second box body 2 into the outer wall of the guide rail 22 for orientation and movement, thereby driving the upper fixture 8 to be inserted into the lower fixture 4, so that the second clamping block 9 is in contact with the first clamping block 5, and then rotate, while contracting the first telescopic spring 7 and the second telescopic spring 11, so that the transmission rod 10 and the control board 6 move. When the lower fixture 4 and the upper fixture 8 are completely in contact, the second clamping block 9 and the first clamping block 5 are also completely in contact, so that the first telescopic spring 7 and the second telescopic spring 11 are no longer stressed and rebound, and then the second clamping block 9 and the first clamping block 5 are reset, thereby achieving the effect of fixing between the first box body 1 and the second box body 2.
[0027] Referring to Figure 1 、 Figure 4 and Figure 5, universal wheels 13 are fixedly connected to the lower surfaces of both the first box body 1 and the second box body 2. A pull rod 14 is arranged inside the first box body 1. Anti-collision blocks 15 are fixedly connected to the outer walls of both the first box body 1 and the second box body 2. A spring piece 16 is slidably connected inside the anti-collision block 15. One side of the outer wall of the spring piece 16 is fixedly connected to a first telescopic rod 17. One end of the first telescopic rod 17 is fixedly connected to a support block 19. The outer wall of the support block 19 is fixedly connected to the outer wall of the first box body 1. A first buffer spring 18 is sleeved on the outer wall of the first telescopic rod 17. One end of the first buffer spring 18 is fixedly connected to the inside of the support block 19. The other end of the first buffer spring 18 is fixedly connected to the outer wall of the spring piece 16. A second telescopic rod 20 is fixedly connected to the outer wall of the spring piece 16. A second buffer spring 21 is sleeved on the outer wall of the second telescopic rod 20. One end of the second buffer spring 21 is fixedly connected to the inside of the anti-collision block 15. The other end of the second buffer spring 21 is fixedly connected to the outer wall of the spring piece 16;
[0028] Specifically, when used with the universal wheels 13 and the pull rod 14 in a combined suitcase, when the anti-collision block 15 at the top corner of the combined suitcase is hit, it causes the anti-collision block 15 to deform, and at the same time applies pressure to the spring piece 16, causing the spring piece 16 to deform. Then, through the deformation of the spring piece 16, pressure is applied to the first buffer spring 18 and the second buffer spring 21, causing the first buffer spring 18 and the second buffer spring 21 to contract. Then, through the thrust generated when the first buffer spring 18 and the second buffer spring 21 contract, the external force is buffered, achieving the effect of protecting the combined suitcase.
[0029] Working principle: When the combined suitcase needs to be used, first insert the slider 3 on the side of the second box body 2 into the outside of the guide rail 22 to guide the movement of the slider 3, and then push the upper fixture 8 into the inside of the lower fixture 4, so that the second latch 9 and the first latch 5 are tightly connected. Subsequently, stretch the first telescopic spring 7 and the second telescopic spring 11, driving the transmission rod 10 and the control board 6 to move. When the lower fixture 4 and the upper fixture 8 are completely aligned, the second latch 9 and the first latch 5 will also be completely docked. At this time, the first telescopic spring 7 and the second telescopic spring 11 are no longer stressed and rebound, causing the second latch 9 and the first latch 5 to reset, thereby realizing the fixation of the first box body 1 and the second box body 2;
[0030] In addition, equipped with universal wheels 13 and a pull rod 14, it enhances the convenience of movement. When the anti-collision block 15 at the top corner of the suitcase is impacted, the anti-collision block 15 will deform, applying pressure to the spring piece 16, causing it to also deform. The deformation of the spring piece 16 further compresses the first buffer spring 18 and the second buffer spring 21. These springs generate thrust during the contraction process, thereby buffering the external force and effectively protecting the suitcase, achieving the effect of anti-impact.
[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended 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 modular trolley case, comprising a case body (1), characterized in that: The outer wall of the box body 1 (1) is provided with a box body 2 (2), the outer wall of the box body 1 (1) is fixedly connected to a lower fixture (4), the outer wall of the box body 2 (2) is fixedly connected to an upper fixture (8), the lower fixture (4) is slidably connected to the interior of the upper fixture (8), the interior of the lower fixture (4) is rotatably connected to a clamp block 1 (5), the outer wall of the clamp block 1 (5) is fixedly connected to a control panel (6), the outer wall of the control panel (6) is slidably connected to the interior of the lower fixture (4), a telescopic spring 1 (7) is provided inside the lower fixture (4), both ends of the telescopic spring 1 (7) are fixedly connected to a rotating plate (12), one of the outer walls of the rotating plate (12) is rotatably connected to the interior of the lower fixture (4), and the other outer wall of the rotating plate (12) is rotatably connected to the interior of the lower fixture (4). The outer wall of the plate (12) is rotatably connected to the inside of the control plate (6); the inside of the upper clamp (8) is rotatably connected to a clamp block 2 (9); the outer wall of the clamp block 2 (9) is fixedly connected to a transmission rod (10); the outer wall of the transmission rod (10) is slidably connected to the inside of the upper clamp (8); a telescopic spring 2 (11) is provided inside the upper clamp (8); both ends of the telescopic spring 2 (11) are fixedly connected to a rotating plate (12); the outer wall of one rotating plate (12) is rotatably connected to the inside of the upper clamp (8); the outer wall of the other rotating plate (12) is rotatably connected to the inside of the transmission rod (10); the outer wall of the box body 1 (1) is provided with a guide assembly, and the guide assembly is used to guide the box body 2 (2).
2. The combined trolley case according to claim 1, characterized in that: The guide assembly comprises a guide rail (22), the outer wall of which is fixedly connected to the outer wall of the first box (1), the outer wall of which is slidably connected to a slider (3), and the outer wall of which is fixedly connected to the outer wall of the second box (2).
3. The combined trolley case according to claim 1, characterized in that: The lower surfaces of the box body 1 (1) and the box body 2 (2) are both fixedly connected with universal wheels (13), and a pull rod (14) is arranged inside the box body 1 (1).
4. The combined trolley case according to claim 3, characterized in that: The outer walls of the box body 1 (1) and the box body 2 (2) are both fixedly connected with anti-collision blocks (15), and the interior of the anti-collision blocks (15) is slidably connected with spring sheets (16).
5. The combined trolley case according to claim 4, characterized in that: A telescopic rod (17) is fixedly connected to one side of the outer wall of the spring sheet (16), a support block (19) is fixedly connected to one end of the telescopic rod (17), and an outer wall of the support block (19) is fixedly connected to the outer wall of the box body (1).
6. The combined trolley case according to claim 5, characterized in that: The outer wall of the telescopic rod (17) is sleeved with a buffer spring (18), one end of the buffer spring (18) is fixedly connected to the inside of the support block (19), and the other end of the buffer spring (18) is fixedly connected to the outer wall of the spring sheet (16).
7. The combined trolley case according to claim 6, characterized in that: The outer wall of the spring sheet (16) is fixedly connected to a second telescopic rod (20), and the outer wall of the second telescopic rod (20) is sleeved with a second buffer spring (21).
8. The combined trolley case according to claim 7, characterized in that: One end of the second buffer spring (21) is fixedly connected to the inside of the anti-collision block (15), and the other end of the second buffer spring (21) is fixedly connected to the outer wall of the spring sheet (16).