Composite box body structure of draw-bar box

Abstract

The utility model belongs to the technical field of composite box bodies, and discloses a composite box body structure of a draw-bar box, which comprises a draw-bar box body, and two symmetrical mounting grooves are fixedly connected below the draw-bar box body. Through mutual cooperation of a mounting groove, a clamping block, a clamping column and other structures, the effect of replacing a damaged universal wheel is achieved, during moving, a rotating handle is manually rotated to enable an adjusting block to apply pressure to a connecting block, and the height of a moving wheel is adjusted to the proper size; the elastic force generated by the buffer spring buffers the vibration sense generated by bumpy road surfaces with different heights, and if one rotating handle is damaged, the clamping column needs to be pulled, so that the rotating handle is separated from the mounting groove, and the other intact rotating handle is mounted in the middle of the mounting groove to support the draw-bar box body; through cooperation of the mounting grooves, the clamping blocks and the clamping columns, when the universal wheels are damaged, the universal wheels can be replaced, and the problem that movement is affected is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite boxes of luggage, and specifically relates to a composite box structure of a luggage. Background Art

[0002] The composite box structure of a luggage is a box device made of multiple materials, generally used to put required items into the box and then pull the box to move to a designated location.

[0003] At present, the composite box structure of a luggage still has drawbacks in actual use: when the existing composite box structure of a luggage is actually used, it is generally to hold the handlebar manually and pull the composite box to move through the universal wheels. Since the box is made of multiple composite materials, the box is heavier than an ordinary box. If the road surface is bumpy, the universal wheels may be damaged due to excessive weight, resulting in a large shock feeling, affecting the subsequent movement, consuming time and effort, and reducing work efficiency. Summary of the Utility Model

[0004] To solve the problems raised in the above background art, the utility model provides a composite box structure of a luggage, thereby reducing the problem that the movement of the composite box is affected by the damage of the universal wheels.

[0005] To achieve the above object, the utility model provides the following technical solution: a composite box structure of a luggage, including a luggage body, two symmetrically arranged mounting grooves are fixedly connected to the lower part of the luggage body, two symmetrically arranged clamping blocks are movably connected to the inner side of the mounting grooves, several clamping columns are arranged on the opposite sides of the two mounting grooves, a fixed block is fixedly connected to the end of the clamping column away from the mounting groove, a spring is arranged on the outer surface of the clamping column, the fixed block is elastically connected to the mounting groove through the spring, the side of the clamping column close to the mounting groove passes through the mounting groove and the clamping block, and the clamping block is clamped to the mounting groove through the clamping column. A moving wheel is arranged below the clamping block.

[0006] Preferably, a fixed disk is fixedly connected to the bottom end of the clamping block, a rotating disk is rotatably connected to the inner side of the fixed disk, and a mounting shell is fixedly connected to the bottom surface of the rotating disk.

[0007] Preferably, a fixed column is arranged at the lower end of the mounting shell, both ends of the fixed column are fixedly connected to the mounting shell, a connecting block is rotatably connected to the middle end of the fixed column, an adjusting plate is movably connected to the inner side of the mounting shell, a buffer spring is arranged below the adjusting plate, the connecting block is elastically connected to the adjusting plate through the buffer spring, and the end of the connecting block away from the fixed column is rotatably connected to the moving wheel.

[0008] Preferably, a threaded screw is arranged above the adjustment plate, one end of the threaded screw close to the mounting shell passes through the mounting shell and is rotatably connected to the mounting shell, and a rotating handle is fixedly installed on one end of the threaded screw away from the mounting shell.

[0009] Preferably, the middle end of the threaded screw is threadedly connected with an adjustment block, the outer surface of the adjustment block is in contact with the mounting shell, the side of the adjustment block close to the adjustment plate is set at an angle, and the adjustment block is movably connected to the adjustment plate through the angle.

[0010] Preferably, the adjustment block fits the contact points of the mounting shell and the adjustment plate, and the contact surfaces of the adjustment block, the adjustment plate and the mounting shell are all smooth.

[0011] Preferably, the outer surface of the rotating handle is provided with anti-slip grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model realizes the effect of replacing a damaged universal wheel by the mutual cooperation between the structures such as the installation groove, the clamping block and the clamping column. When moving, the adjusting block applies pressure to the connecting block by manually turning the rotating handle, so that the connecting block drives the moving wheel to rotate around the fixed column as the center of the circle, and the height of the moving wheel is adjusted to a suitable size, so that the elastic force generated by the buffer spring can buffer the vibration caused by potholes on roads of different heights.

[0014] If one of the rotating handles is damaged, it is necessary to pull out the clamping column to disengage the rotating handle from the mounting groove, and then install another intact rotating handle in the middle of the mounting groove to support the trolley case body. In this way, the universal wheel can be replaced if it is damaged through the cooperation of the mounting groove, the clamping block and the clamping column structure, thus solving the problem of affected movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from below;

[0017] Figure 3 This is a schematic diagram of the matching relationship between the installation slot, the clamping column and the fixing block of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the installation shell of the utility model;

[0019] Figure 5 This is a schematic diagram of the matching relationship between the threaded screw rod and the mounting shell of the utility model;

[0020] Figure 6This is a schematic structural diagram of the cooperation relationship between the adjustment block and the installation shell of the present utility model.

[0021] In the figure: 1. Luggage case body; 2. Installation groove; 3. Clamping block; 4. Clamping post; 5. Fixed block; 6. Fixed disk; 7. Installation shell; 8. Adjustment plate; 9. Connecting block; 10. Adjustment block; 11. Threaded lead screw; 12. Rotating disk; 13. Buffer spring; 14. Movable wheel; 15. Rotating handle; 16. Fixed post. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 6 shown, the present utility model provides a composite box structure of a luggage case, including a luggage case body 1. Two symmetrically arranged installation grooves 2 are fixedly connected below the luggage case body 1. Two symmetrically arranged clamping blocks 3 are movably connected inside the installation grooves 2. A plurality of clamping posts 4 are arranged on the opposite sides of the two installation grooves 2. One end of the clamping post 4 away from the installation groove 2 is fixedly connected with a fixed block 5. A spring is arranged on the outer surface of the clamping post 4. The fixed block 5 is elastically connected with the installation groove 2 through the spring. One side of the clamping post 4 close to the installation groove 2 passes through the installation groove 2 and the clamping block 3. The clamping block 3 is clamped with the installation groove 2 through the clamping post 4. A movable wheel 14 is arranged below the clamping block 3.

[0024] Adopting the above scheme: When the movable wheel 14 is damaged, manually pinch the fixed block 5 to move in the direction away from the installation groove 2, so that the clamping block 3 clamped with the clamping post 4 is separated from the inner surface of the installation groove 2, so that the damaged movable wheel 14 falls off. At the same time, the intact movable wheel 14 at the other end is also separated. Finally, the intact movable wheel 14 is clamped in the middle of the installation groove 2 through the clamping block 3, so that a plurality of clamped movable wheels 14 form a triangle, and the luggage case body 1 can continue to be used.

[0025] As Figures 3 to 5As shown in the figure, a fixed disk 6 is fixedly connected to the bottom end of the clamping block 3. A rotating disk 12 is rotatably connected to the inner side of the fixed disk 6. An installation shell 7 is fixedly connected to the bottom surface of the rotating disk 12. A fixed column 16 is arranged at the lower end of the installation shell 7. Both ends of the fixed column 16 are fixedly connected to the installation shell 7. A connecting block 9 is rotatably connected to the middle end of the fixed column 16. An adjusting plate 8 is movably connected to the inner side of the installation shell 7. A buffer spring 13 is arranged below the adjusting plate 8. The connecting block 9 is elastically connected to the adjusting plate 8 through the buffer spring 13. One end of the connecting block 9 away from the fixed column 16 is rotatably connected to a moving wheel 14.

[0026] Adopting the above scheme: Through the mutual cooperation between the fixed disk 6 and the rotating disk 12, when the installation shell 7 is stressed, the rotating disk 12 drives the installation shell 7 to rotate synchronously. Through the mutual cooperation between the fixed column 16 and the connecting block 9, when the moving wheel 14 moves, it drives the installation shell 7 to move synchronously under stress. If the moving wheel 14 moves on an uneven road surface, the buffer spring 13 elastically buffers the moving wheel 14 to reduce the impact of damage to the cooperation structure of the moving wheel 14, the connecting block 9, and the fixed column 16 caused by vibration.

[0027] As Figures 3 to 6 shown in the figure, a threaded lead screw 11 is arranged above the adjusting plate 8. One end of the threaded lead screw 11 close to the installation shell 7 passes through the installation shell 7 and is rotatably connected to the installation shell 7. A rotating handle 15 is fixedly installed at the end of the threaded lead screw 11 away from the installation shell 7.

[0028] Adopting the above scheme: By setting the rotating handle 15, it is more labor-saving for manual rotation of the threaded lead screw 11 by a person.

[0029] As Figure 4 and Figure 6 shown in the figure, an adjusting block 10 is threadedly connected to the middle end of the threaded lead screw 11. The outer surface of the adjusting block 10 is in contact connection with the installation shell 7. One side of the adjusting block 10 close to the adjusting plate 8 is set as an inclined angle, and the adjusting block 10 is movably connected to the adjusting plate 8 through the inclined angle.

[0030] Adopting the above scheme: The threaded lead screw 11 drives the inclined angle of the adjusting block 10 to move towards the installation shell 7, enabling the adjusting block 10 to apply pressure to the adjusting plate 8, causing the adjusting plate 8 to move downward to adjust the height of the adjusting plate 8.

[0031] As Figures 3 to 6 shown in the figure, the contact points of the adjusting block 10 with the installation shell 7 and the adjusting plate 8 are in fit. The contact surfaces of the adjusting block 10 with the adjusting plate 8 and the installation shell 7 are both set to be smooth. The outer surface of the rotating handle 15 is provided with anti-slip threads.

[0032] Adopting the above solution: By setting the mutual cooperation between the installation shell 7 and the adjustment plate 8, when the installation shell 7 moves, it can prevent some sundries from entering the interior of the contact point between the adjustment plate 8 and the adjustment block 10, making the operation of the adjustment block 10 more stable. Anti-slip stripes are set to increase the friction when manually turning the handle 15, reducing the influence of slipping and being unable to turn the handle 15.

[0033] The working principle and usage process of the present utility model: When in use, first open the suitcase body 1 and place the required items inside the suitcase body 1. Then turn the handle 15 to adjust the height of the moving wheels 14 according to the unevenness of the moving road surface. When the moving wheels 14 contact the bumpy road surface, the elasticity generated by the buffer springs 13 is used to buffer the shock generated when the moving wheels 14 move on the bumpy section, preventing damage to the moving wheels 14 and fragile items inside the box due to excessive vibration.

[0034] If a certain moving wheel 14 is damaged, only need to pull the fixing block 5 away from the installation groove 2, so that the installation groove 2 is separated from the clamping block 3, remove the damaged moving wheel 14, then immediately remove the moving wheel 14 at the other end of the damaged moving wheel 14 as well, install the moving wheel 14 in the middle position of the installation groove 2, and finally pull the suitcase to the destination.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A composite box structure of a trolley case, comprising a trolley case body (1), characterized in that: Two mutually symmetrical mounting grooves (2) are fixedly connected at the bottom of the trolley case body (1), and two mutually symmetrical clamping blocks (3) are movably connected to the inner side of the mounting grooves (2). A plurality of clamping columns (4) are arranged on the opposite sides of the two mounting grooves (2), and a fixing block (5) is fixedly connected to the end of the clamping column (4) away from the mounting groove (2). A spring is arranged on the outer surface of the clamping column (4), and the fixing block (5) is elastically connected to the mounting groove (2) through the spring. The side of the clamping column (4) close to the mounting groove (2) passes through the mounting groove (2) and the clamping block (3), and the clamping block (3) is clamped with the mounting groove (2) through the clamping column (4). A movable wheel (14) is arranged below the clamping block (3).

2. The composite box structure of a trolley case according to claim 1, characterized in that: The bottom end of the clamping block (3) is fixedly connected to a fixed disk (6), the inner side of the fixed disk (6) is rotatably connected to a rotating disk (12), and the bottom surface of the rotating disk (12) is fixedly connected to a mounting shell (7).

3. The composite box structure of a trolley case according to claim 2, characterized in that: A fixing column (16) is arranged at the lower end of the mounting shell (7), both ends of the fixing column (16) are fixedly connected to the mounting shell (7), the middle end of the fixing column (16) is rotatably connected to a connecting block (9), the inner side of the mounting shell (7) is movably connected to an adjusting plate (8), a buffer spring (13) is arranged below the adjusting plate (8), the connecting block (9) is elastically connected to the adjusting plate (8) via the buffer spring (13), and one end of the connecting block (9) away from the fixing column (16) is rotatably connected to a moving wheel (14).

4. The composite box structure of a trolley case according to claim 3, characterized in that: A threaded screw (11) is arranged above the adjustment plate (8); one end of the threaded screw (11) close to the mounting shell (7) passes through the mounting shell (7) and is rotatably connected to the mounting shell (7); and one end of the threaded screw (11) away from the mounting shell (7) is fixedly mounted with a rotating handle (15).

5. The composite box structure of a trolley case according to claim 4, characterized in that: The middle end of the threaded screw rod (11) is threadedly connected to an adjustment block (10); the outer surface of the adjustment block (10) is in contact with the mounting shell (7); a side of the adjustment block (10) close to the adjustment plate (8) is arranged at an oblique angle; and the adjustment block (10) is movably connected to the adjustment plate (8) via the oblique angle.

6. The composite box structure of a trolley case according to claim 5, characterized in that: The adjustment block (10) fits in contact with the mounting shell (7) and the adjustment plate (8), and the contact surfaces of the adjustment block (10), the adjustment plate (8) and the mounting shell (7) are all configured to be smooth.

7. The composite box structure of a trolley case according to claim 4, characterized in that: The outer surface of the rotating handle (15) is provided with anti-slip grooves.

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