Draw-bar box with folding draw-bar structure
By setting up a rotary dial, limit hole, spring and blocking block at the connection between the trolley and the main box of the trolley box, the operation difficulty and space occupation of the existing folding trolley box are solved, simplified folding and flexible expansion are achieved, and the Mobility and storage flexibility.
Patent Information
- Application Number
- CN202421368668.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing trolley box with folding trolley structure requires a greater force or specific angle when folding, which increases the difficulty of operation for the user, and the folding process involves additional steps and space, especially within a limited trunk.
A trolley box with a folding lever structure is designed. By setting a turntable, limit hole, spring and block at the connection between the trolley and the main box, the spring elastic force and block design are used to achieve simple folding of the trolley, and Improve storage flexibility through capacity expansion mechanisms.
The simplified folding of the tie rod is achieved, reducing the space occupied by the suitcase, reducing the risk of scratches during transportation, improving travel convenience, and improving storage flexibility to adapt to the situation of increasing items.
Smart Images
Figure CN222443376U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of luggage products, in particular to a trolley case with a foldable trolley structure. Background Art
[0002] Folding trolley case is an innovative trolley case that combines the portability of traditional trolley case with the flexibility of modern design. The design of this trolley case allows the user to fold the handle when not in use, thus significantly reducing the space occupied by the case, which is very suitable for environments with limited space or situations where frequent carrying is required.
[0003] In the prior art, when folding the handle of a suitcase with a folding rod structure, the folding point is difficult to operate, and a large force or a specific angle is required to fold it smoothly, which increases the difficulty of operation for users. Although space can be saved after folding, the folding process involves additional steps and space, especially in the limited interior of the suitcase.
[0004] In view of the above problems, a suitcase with a foldable pull rod structure is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a trolley case with a folding pull rod structure, aiming to improve the problem that the folding point of the trolley case with a folding pull rod structure in the prior art is difficult to operate when folding the pull rod, and requires a large force or a specific angle to fold smoothly, which increases the difficulty of operation for the user. Although space can be saved after folding, the folding process involves additional steps and space, especially in the limited interior of the suitcase.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a trolley case with a folding pull rod structure, comprising a main case, two fixed blocks fixedly connected to the upper rear side of the main case, a connecting rod rotatably connected inside the fixed blocks, one end of the connecting rod is fixedly connected to a turntable, a pull rod is fixedly connected to the outside of the connecting rod, a thin shell second is fixedly connected to the right side of the rear of the main case, a thin shell first is fixedly connected to the top of the thin shell second, a plug-in rod is slidably connected inside the thin shell second, a baffle is fixedly connected to one side of the outside of the plug-in rod, a spring is sleeved on the other side of the outside of the plug-in rod, a blocking block is arranged on the top of the baffle, and a capacity expansion mechanism is arranged inside the main case.
[0007] As a further description of the above technical solution:
[0008] The expansion mechanism includes a gear, the outer side of the gear is rotatably connected to the middle side of the main box, the outer side of the gear is meshed and connected to two racks, one side of the rack is fixedly connected to the expansion box, and two limit grooves are provided inside the main box.
[0009] As a further description of the above technical solution:
[0010] One end of the spring is fixedly connected to the middle of the baffle, and the other end of the spring is fixedly connected to the second inner wall of the thin shell.
[0011] As a further description of the above technical solution:
[0012] Two limiting holes are arranged inside the rotating disk, the plug-in rod is plugged into one of the limiting holes, and the outer side of the baffle is slidably connected to the inside of the second thin shell.
[0013] As a further description of the above technical solution:
[0014] The upper side of the blocking block is slidably connected to the inside of the thin shell one, and the lower side of the blocking block is slidably connected to the inside of the thin shell two.
[0015] As a further description of the above technical solution:
[0016] One side of the thin shell is fixedly connected to the rear of the main box.
[0017] As a further description of the above technical solution:
[0018] One end of the rack is slidably connected to the inside of the limiting groove, a handle is fixedly connected to one side of the expansion box, and two sliding grooves are arranged inside the main box.
[0019] As a further description of the above technical solution:
[0020] The bottom of the main box is rotatably connected with a plurality of universal wheels.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the utility model, by pulling the plug rod, the baffle moves outward and the spring is compressed. When the plug rod is completely withdrawn from the limit hole of the turntable, the blocking block slides into the second thin shell, and then the pull rod is rotated 180 degrees to drive the connecting rod to rotate, and the limit hole also rotates 180 degrees. At this time, you only need to lift the blocking block, and use the elastic force of the spring, the baffle and the plug rod will move inward and firmly insert into another limit hole, so as to simplify the folding of the pull rod, and at the same time greatly reduce the space occupied by the suitcase, reduce the risk of scratches during transportation, and is particularly suitable for use in small environments and public transportation, improving travel convenience.
[0023] 2. In the utility model, by pulling the handle, the expansion box is moved, and then the rack follows, the gear rotates to drive the reverse rack, and the two boxes move in conjunction until a suitable position is found and the handle is pulled again, thereby expanding the capacity of the suitcase and improving storage flexibility. It allows the user to expand the capacity at any time according to needs, adapt to the situation of increasing items, save space, improve travel efficiency, and is easy to operate, solving the problem of temporary storage during travel. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A three-dimensional diagram of a trolley case with a foldable trolley structure proposed by the utility model;
[0025] Figure 2 This is a schematic structural diagram of a turntable of a trolley case with a folding pull rod structure proposed by the utility model;
[0026] Figure 3 This is a schematic structural diagram of a spring of a trolley case with a folding pull rod structure proposed by the utility model;
[0027] Figure 4 The present invention is a schematic structural diagram of a gear of a trolley case with a folding pull rod structure.
[0028] Legend:
[0029] 1. Main box; 2. Fixed block; 3. Connecting rod; 4. Pull rod; 5. Turntable; 6. Limiting hole; 7. Thin shell 1; 8. Thin shell 2; 9. Blocking block; 10. Plug-in rod; 11. Spring; 12. Baffle; 13. Limiting groove; 14. Rack; 15. Gear; 16. Expansion box; 17. Handle; 18. Universal wheel; 19. Sliding groove. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] Reference Figure 1 - Figure 3The utility model provides an embodiment: a trolley case with a foldable trolley structure, comprising a main case 1, two fixed blocks 2 are fixedly connected to the upper rear side of the main case 1, a connecting rod 3 is rotatably connected inside the fixed block 2, one end of the connecting rod 3 is fixedly connected to a turntable 5, a trolley 4 is fixedly connected to the outside of the connecting rod 3, a thin shell 2 8 is fixedly connected to the right side of the rear of the main case 1, a thin shell 1 7 is fixedly connected to the top of the thin shell 2 8, a plug-in rod 10 is slidably connected inside the thin shell 2 8, a baffle 12 is fixedly connected to one side of the outside of the plug-in rod 10, a spring 11 is sleeved on the other side of the outside of the plug-in rod 10, a blocking block 9 is arranged on the top of the baffle 12, and a capacity expansion mechanism is arranged inside the main case 1.
[0032] Specifically, when the pull rod 4 is not needed, the operator can operate by pulling the plug rod 10. This will cause the baffle 12 to move outward, accompanied by the compression of the spring 11. When the plug rod 10 is completely out of the limit hole 6 in the turntable 5, the blocking block 9 will slide from the thin shell 1 7 into the thin shell 2 8. The original intention of this design is to prevent the baffle 12 and the plug rod 10 from retracting to the limit hole 6 under the action of the spring 11 after the hand is released. At this time, by rotating the pull rod 4 180 degrees, the connecting rod 3 is driven to rotate 180 degrees, causing the limit hole 6 to rotate 180 degrees accordingly. At this stage, you only need to gently lift the blocking block 9, the baffle 12 and the plug rod 10 will return under the elastic force of the spring 11, and finally be firmly inserted into the other limit hole 6, thereby realizing the storage process of the pull rod 4.
[0033] Reference Figure 4 The expansion mechanism includes a gear 15, the outer side of the gear 15 is rotatably connected to the middle side of the main box 1, the outer side of the gear 15 is meshedly connected to two racks 14, one side of the rack 14 is fixedly connected to the expansion box 16, and two limit grooves 13 are opened inside the main box 1.
[0034] Specifically, in the scenario where the capacity 19 needs to be expanded, the operator needs to pull the handle 17, which will trigger the movement of the expansion box 16. Then, this movement is transmitted to the rack 14, causing it to start moving. As the rack 14 moves, the gear 15 rotates, causing the other rack 14 connected to it to move in the opposite direction. This process further drives the second expansion box 16 to move toward the desired position. Finally, when the ideal position is reached, the handle 17 is pulled again, and the entire expansion process is completed.
[0035] Reference Figure 2 - Figure 4One end of the spring 11 is fixedly connected to the middle of the baffle 12, and the other end of the spring 11 is fixedly connected to the inner wall of the thin shell 8. Two limiting holes 6 are opened inside the turntable 5, and the plug-in rod 10 is inserted into one of the limiting holes 6. The outer side of the baffle 12 is slidably connected to the inside of the thin shell 8, the upper side of the blocking block 9 is slidably connected to the inside of the thin shell 1 7, and the lower side of the blocking block 9 is slidably connected to the inside of the thin shell 2 8. One side of the thin shell 1 7 is fixedly connected to the rear part of the main box 1, one end of the rack 14 is slidably connected to the inside of the limiting groove 13, and a handle 17 is fixedly connected to one side of the expansion box 16. Two sliding grooves 19 are opened inside the main box 1, and a plurality of universal wheels 18 are rotatably connected to the bottom of the main box 1.
[0036] Specifically, the two ends of the spring 11 are respectively fixed to the center of the baffle 12 and the inner wall of the thin shell 2 8, forming a buffer and stabilizing mechanism. The turntable 5 has two limit holes 6, and the plug rod 10 is cleverly inserted into one of the holes to limit the pull rod 4. The baffle 12 is connected to the inside of the thin shell 2 8 by sliding on the outside to prevent the plug rod 10 from leaving the inside of the thin shell 2 8, and the blocking block 9 slides on the upper part of the thin shell 1 7 and the lower part of the thin shell 2 8 respectively, preventing the baffle 12 and the plug rod 10 from re-entering the limit hole 6 under the elastic force of the spring 11 after the hand is released. The thin shell 1 7 is fixedly attached to the rear side of the main box 1 to play a fixing role. One end of the rack 14 is connected to the limit slot 13 for precise transmission and positioning. The handle 17 of the expansion box 16 is convenient for the user to control its movement, and two sliding slots 19 are provided inside the main box 1 to facilitate the accommodation and movement of the expansion box 16. The universal wheels 18 at the bottom allow the main box 1 to have greater flexibility when moving.
[0037] Working principle: When the pull rod 4 is not needed, the operator can pull the plug rod 10. This action will drive the baffle 12 to move outward, and the spring 11 will be compressed. When the connecting rod 10 completely leaves the limiting hole 6 inside the turntable 5, the blocking block 9 will slide from the inside of the thin shell 1 7 into the thin shell 2 8. This design prevents the baffle 12 and the connecting rod 10 from re-entering the limiting hole 6 under the elastic force of the spring 11 after the hand is released. At this time, the pull rod 4 is pulled to rotate 180 degrees, thereby driving the connecting rod 3 to rotate 180 degrees, thereby driving the limiting hole 6 to rotate 180 degrees. At this time, it is only necessary to pull the blocking block 9 upward. At this time, under the elastic force of the spring 11, the baffle 12 and the connecting rod 10 will move inward until they are firmly plugged into another limiting hole 6, completing the folding of the pull rod 4. When capacity expansion 19 is required, the handle 17 is pulled at this time, thereby driving the expansion box 16 to move, thereby driving the rack 14 to move, and thereby causing the gear 15 to rotate, thereby causing the other rack 14 to move in the opposite direction, thereby driving the other expansion box 16 to move in the direction until the handle 17 is pulled at the appropriate position, and the capacity expansion is completed.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A trolley case with a foldable trolley structure, comprising a main case (1), characterized in that: Two fixed blocks (2) are fixedly connected to the upper rear side of the main box (1), a connecting rod (3) is rotatably connected inside the fixed block (2), one end of the connecting rod (3) is fixedly connected to a turntable (5), and a pull rod (4) is fixedly connected to the outside of the connecting rod (3). A thin shell 2 (8) is fixedly connected to the right side of the rear of the main box (1), and a thin shell 1 (7) is fixedly connected to the top of the thin shell 2 (8). A plug-in rod (10) is slidably connected inside the thin shell 2 (8), and a baffle (12) is fixedly connected to one side of the outside of the plug-in rod (10), and a spring (11) is sleeved on the other side of the outside of the plug-in rod (10). A blocking block (9) is arranged on the top of the baffle (12), and an expansion mechanism is arranged inside the main box (1).
2. The trolley case with a foldable trolley structure according to claim 1, characterized in that: The capacity expansion mechanism comprises a gear (15), the outer side of the gear (15) is rotatably connected to the middle side of the main box (1), the outer side of the gear (15) is meshingly connected to two racks (14), one side of the rack (14) is fixedly connected to the capacity expansion box (16), and two limit grooves (13) are provided inside the main box (1).
3. The trolley case with a foldable trolley structure according to claim 1, characterized in that: One end of the spring (11) is fixedly connected to the middle of the baffle (12), and the other end of the spring (11) is fixedly connected to the inner wall of the second thin shell (8).
4. The trolley case with a foldable trolley structure according to claim 1, characterized in that: Two limiting holes (6) are provided inside the rotating disk (5), the plug-in rod (10) is plugged into one of the limiting holes (6), and the outer side of the baffle (12) is slidably connected to the inside of the second thin shell (8).
5. The trolley case with a foldable trolley structure according to claim 1, characterized in that: The upper side of the blocking block (9) is slidably connected to the inside of the thin shell one (7), and the lower side of the blocking block (9) is slidably connected to the inside of the thin shell two (8).
6. The trolley case with a foldable trolley structure according to claim 1, characterized in that: One side of the thin shell (7) is fixedly connected to the rear of the main box (1).
7. The trolley case with a foldable trolley structure according to claim 2, characterized in that: One end of the rack (14) is slidably connected to the inside of the limiting groove (13); a handle (17) is fixedly connected to one side of the expansion box (16); and two sliding grooves (19) are provided inside the main box (1).
8. The suitcase with a foldable tie rod structure according to claim 1, characterized in that: The bottom of the main box (1) is rotatably connected to a plurality of universal wheels (18).