Portable foldable draw-bar box

Abstract

The utility model discloses a portable foldable draw-bar box, which relates to the technical field of draw-bar boxes, and comprises two movable support columns, the upper surfaces of the two movable support columns are fixedly connected with a folding assembly, the inner wall of the folding assembly is slidably connected with a folding support assembly, and the folding support assembly is fixedly connected with the movable support columns. The front part and the rear part of the lower surface of the folding supporting assembly are in lap joint with the upper surfaces of the two movable supporting columns correspondingly. According to the portable foldable draw-bar box disclosed by the utility model, the supporting main plate and the supporting auxiliary plate can be separated from the inner walls of the main baffle plates and the side folding baffle plates by moving the handle II, and then the two side folding baffle plates can be folded in opposite directions under the action of the middle hinge by pushing the two main baffle plates in opposite directions; at the moment, the opposite faces of the two movable supporting columns are in lap joint, then the two auxiliary supporting plates are rotated and moved to the opposite sides of the two main baffles, and therefore the folded main baffles and the folded side folding baffles are limited and fixed, and carrying is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley cases, and particularly relates to a portable foldable trolley case. Background Art

[0002] A trolley case refers to a luggage case with a pull rod and rollers, which is convenient to drag when walking, greatly reducing the burden; the accommodation cavity of the existing trolley case is composed of a front box body and a rear box body which are hinged to each other and equipped with a zipper. Whether there are items in the trolley case or not, the overall space occupied by the trolley case is relatively large, which makes it inconvenient for the new trolley case to be bought, sold and transported, and will greatly increase the transportation cost. Therefore, a portable foldable trolley case is needed.

[0003] Chinese patent document CN213344626U discloses a portable foldable trolley case, which includes a front baffle, a rear baffle, two symmetrically arranged side baffles, a bottom plate and a cover plate; both sides of the side baffle are respectively hinged to the front baffle and the rear baffle, and a hinge part is arranged at the vertical midline position of the side baffle; a detachable card strip is connected to the top end of the side baffle, and a protrusion is arranged on the outer side surface of the card strip; the front side of the bottom plate is hinged to the front baffle, and the rear side of the bottom plate is clamped to the rear baffle; the cover plate covers the top of the square opening cavity formed by the front baffle, the rear baffle and two symmetrically arranged side baffles. The utility model not only can reduce the occupied space when there are no items, but also has the advantages of convenient transportation, low transportation cost, not easy to deform, convenient folding and convenient movement.

[0004] The following problems exist in the prior art:

[0005] When the portable foldable trolley case is in use, it cannot be folded well, resulting in inconvenient carrying. And when the portable foldable trolley case is folded, the operation is complex and it cannot be folded and unfolded quickly, resulting in inconvenient use. Content of the Utility Model

[0006] The utility model provides a portable foldable trolley case to solve the problems put forward in the above background art.

[0007] To solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A portable foldable trolley case includes two movable support columns. The upper surfaces of the two movable support columns are fixedly connected with a folding assembly. The inner wall of the folding assembly is slidably connected with a folding support assembly. The front and rear parts of the lower surface of the folding support assembly are respectively lapped on the upper surfaces of the two movable support columns. The upper surfaces of the front and rear parts are both fixedly connected with limit plates and the two limit plates are located directly above the two movable support columns. The upper surfaces of the two limit plates are both fixedly connected with a handle one.

[0009] Preferably, the folding assembly includes two main baffles. The lower surfaces of the two main baffles are respectively fixedly connected to the upper surfaces of the two moving support columns. The left and right parts of the opposite surfaces of the two main baffles are hinged with two side folding baffles, and the two side folding baffles are located on the left and right sides of the folding support assembly. The upper surfaces of the two main baffles are both fixedly connected with U-shaped limit columns, and the lower surfaces of the opposite parts of the two U-shaped limit columns are respectively lapped with the upper surfaces of the two side folding baffles.

[0010] Preferably, the folding support assembly includes a support main board. The left and right sides of the support main board are respectively slidably connected to the opposite surfaces of the two side folding baffles. Symmetrically two support sub-boards are hinged to the front and rear sides of the support main board. The lower surfaces of the two support sub-boards are respectively lapped with the upper surfaces of the two moving support columns. A handle two is rotatably connected to the inner wall of the middle part of the support main board. The outer walls of the opposite parts of the two support sub-boards are respectively clamped to the inner walls of the left and right parts of the support main board. Pulling plates are slidably connected to the inner walls of the opposite parts of the two support sub-boards. Fixed components are fixedly connected to the left and right sides of the four pulling plates. The outer walls of the opposite parts of the four fixed components are respectively clamped to the inner cavity of the support main board.

[0011] Preferably, the two fixed components include two connecting plates. The opposite surfaces of the two connecting plates are respectively fixedly connected to the left and right sides of the pulling plate. The outer walls of the two connecting plates are respectively slidably connected to the inner cavity of the support sub-board.

[0012] Preferably, the upper part of the back surface of the connecting plate is fixedly connected with a pull rod. The outer wall of the pull rod is movably sleeved with a U-shaped guide rail. The lower surface of the U-shaped guide rail is fixedly connected to the inner cavity of the support sub-board. A spring is fixedly connected to the opposite surfaces of the connecting plate and the U-shaped guide rail and the spring is located below the pull rod. A slider is slidably connected to the outer wall of the middle part of the U-shaped guide rail. The front surface of the slider is fixedly connected to the back surface of the pull rod. The back surface of the slider is fixedly connected with a clamping plate. The outer wall of the clamping plate is movably sleeved with the inner cavity of the support sub-board. The rear part of the outer wall of the clamping plate is clamped to the inner cavity of the support main board.

[0013] Preferably, a rubber block is lapped on the back surface of the slider and the rubber block is located below the clamping plate. The back surface of the rubber block is fixedly connected to the inner wall of the U-shaped guide rail.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0015] 1. The present utility model provides a portable foldable trolley case. By moving the second handle, the support main board and the support sub-board can be separated from the inner walls of the main baffle and the side folding baffle. Then, by pushing the two main baffles towards each other, the two side folding baffles can be folded towards each other under the action of the middle hinge. At this time, the opposite surfaces of the two moving support columns overlap. Then, the two support sub-boards are rotated and moved to the opposite sides of the two main baffles, so as to limit and fix the folded main baffle and side folding baffle. Finally, holding the two first handles can move the box body, which is convenient to carry.

[0016] 2. The present utility model provides a portable foldable trolley case. Through the action of the spring, the pull rod and the slider can push the clamping plate to move into the inner cavity of the support main board. Among them, through the action of the rubber block, when the slider pushes the clamping plate to move under the action of the spring, it will not collide with the inner wall of the U-shaped guide rail, reducing damage and playing a role of limiting at the same time. Thus, the support sub-board is fixedly connected to the support main board. Then, the fixed support main board and support sub-board are pushed down between the main baffle and the side folding baffle, and the main baffle and the side folding baffle can be supported and formed, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0019] Figure 3 is a schematic top view structural diagram of the folding assembly of the present utility model;

[0020] Figure 4 is a schematic folding structural diagram of the present utility model;

[0021] Figure 5 is a schematic structural diagram of the folding support assembly of the present utility model;

[0022] Figure 6 is a schematic side cross-sectional structural diagram of the support sub-board of the present utility model;

[0023] Figure 7 is a schematic structural diagram of the fixing assembly of the present utility model;

[0024] Figure 8 of the present utility model Figure 7 is an enlarged structural diagram at A in the figure.

[0025] In the figure: 1. Movable support column; 2. Folding assembly; 3. Folding support assembly; 4. Limit plate; 5. First handle; 21. Main baffle; 22. Side folding baffle; 23. U-shaped limit post; 31. Support main board; 32. Support sub-board; 33. Second handle; 34. Pulling board; 35. Fixing assembly; 351. Connecting plate; 352. Pull rod; 353. U-shaped guide rail; 354. Spring; 355. Slide block; 356. Clamping board; 357. Rubber block. Detailed implementation mode

[0026] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with the detailed implementation mode.

[0027] As Figure 1 、 Figure 2 shown, a portable foldable trolley case includes two movable support columns 1. The upper surfaces of the two movable support columns 1 are fixedly connected with a folding assembly 2. The inner wall of the folding assembly 2 is slidably connected with a folding support assembly 3. The front and rear parts of the lower surface of the folding support assembly 3 are respectively lapped on the upper surfaces of the two movable support columns 1. The upper surfaces of the front and rear parts are fixedly connected with limit plates 4, and the two limit plates 4 are located directly above the two movable support columns 1. The upper surfaces of the two limit plates 4 are fixedly connected with a first handle 5;

[0028] By moving the folding support assembly 3 upward until it stops between the folding assembly 2 and the two limit plates 4, then the folding assembly 2 can be folded. Then, the folded folding assembly 2 can be restricted by folding the folding support assembly 3. Finally, by pulling the two first handles 5, the box body can be moved under the action of the two movable support columns 1, thus facilitating portability.

[0029] As Figure 3 shown, the folding assembly 2 includes two main baffles 21. The lower surfaces of the two main baffles 21 are respectively fixedly connected with the upper surfaces of the two movable support columns 1. The left and right parts of the opposite surfaces of the two main baffles 21 are hinged with two side folding baffles 22, and the two side folding baffles 22 are located on the left and right sides of the folding support assembly 3. The upper surfaces of the two main baffles 21 are fixedly connected with U-shaped limit posts 23. The lower surfaces of the opposite parts of the two U-shaped limit posts 23 are respectively lapped on the upper surfaces of the two side folding baffles 22;

[0030] By pushing the two main baffles 21 towards each other, the two side folding baffles 22 can be folded towards each other under the action of the middle hinge. At this time, the opposite surfaces of the two movable support columns 1 are lapped, so as to fold and reduce the volume of the box body, thus facilitating portability.

[0031] As Figure 4 、 Figure 5As shown in the figure, the folding support assembly 3 includes a support main board 31. The left and right sides of the support main board 31 are respectively slidably connected to the opposite surfaces of the two side folding baffles 22. Symmetrically arranged two support sub-boards 32 are hinged to the front and rear sides of the support main board 31. The lower surfaces of the two support sub-boards 32 are respectively lapped on the upper surfaces of the two moving support columns 1. A second handle 33 is rotatably connected to the inner wall of the middle part of the support main board 31. The outer walls of the relative parts of the two support sub-boards 32 are respectively clamped with the inner walls of the left and right parts of the support main board 31. The inner walls of the opposite parts of the two support sub-boards 32 are respectively slidably connected with pull plates 34. Fixed components 35 are fixedly connected to the left and right sides of the two pull plates 34. The outer walls of the relative parts of the four fixed components 35 are respectively clamped with the inner cavity of the support main board 31;

[0032] By pulling the second handle 33, the support main board 31 and the two support sub-boards 32 can be moved upward between the U-shaped limit posts 23 and the limit plate 4. At this time, the main baffle 21 and the side folding baffles 22 can be folded. The outer walls of the two support sub-boards 32 pass through the limit holes formed by the two U-shaped limit posts 23 and the two limit plates 4. Then, under the action of the four fixed components 35, the two support sub-boards 32 can rotate and move downward under the action of the hinge, so as to move the two support sub-boards 32 to the opposite sides of the two main baffles 21, thereby restricting and fixing the folded main baffle 21 and side folding baffles 22. Finally, holding the two first handles 5 can move the box body.

[0033] As Figure 6 shown, a pull rod 352 is fixedly connected to the upper part behind the connecting plate 351. A U-shaped guide rail 353 is movably sleeved on the outer wall of the pull rod 352. The lower surface of the U-shaped guide rail 353 is fixedly connected to the inner cavity of the support sub-board 32. A spring 354 is fixedly connected to the opposite surfaces of the connecting plate 351 and the U-shaped guide rail 353 and the spring 354 is located below the pull rod 352. A slider 355 is slidably connected to the outer wall of the middle part of the U-shaped guide rail 353. The front surface of the slider 355 is fixedly connected to the rear surface of the pull rod 352. A clamping plate 356 is fixedly connected to the rear surface of the slider 355. The outer wall of the clamping plate 356 is movably sleeved in the inner cavity of the support sub-board 32. The rear part of the outer wall of the clamping plate 356 is clamped with the inner cavity of the support main board 31;

[0034] Through the action of the connecting plate 351, the pull rod 352 can pull the slider 355 to move under the action of the U-shaped guide rail 353, so that the clamping plate 356 is moved out of the inner cavity of the support main board 31. At this time, the support sub-board 32 can be rotated and moved downward for folding and placement.

[0035] As Figure 7 shown, the two fixed components 35 include two connecting plates 351. The opposite surfaces of the two connecting plates 351 are respectively fixedly connected to the left and right sides of the pull plate 34. The outer walls of the two connecting plates 351 are respectively slidably connected to the inner cavities of the support sub-boards 32;

[0036] Through the action of the pull plate 34, the two connecting plates 351 can move simultaneously, thus facilitating the folding of the supporting auxiliary plate 32.

[0037] As Figure 8 shown, a rubber block 357 is lapped behind the slider 355 and the rubber block 357 is located below the clamping plate 356, and the rear surface of the rubber block 357 is fixedly connected to the inner wall of the U-shaped guide rail 353;

[0038] Through the action of the rubber block 357, when the slider 355 pushes the clamping plate 356 to move under the action of the spring 354, it will not collide with the inner wall of the U-shaped guide rail 353, so as to reduce damage and play a role in limiting at the same time.

[0039] The working principle of the present utility model: By pulling the handle two 33, the supporting main board 31 and the two supporting auxiliary boards 32 can move upward to between the U-shaped limiting posts 23 and the limiting plate 4, and then by pushing the two main baffles 21 towards each other, the two side folding baffles 22 can be folded towards each other under the action of the middle hinge. At this time, the opposite surfaces of the two moving support columns 1 are lapped, so as to fold and reduce the volume of the box body, thus facilitating carrying. The outer walls of the two supporting auxiliary boards 32 pass through the limiting holes formed by the two U-shaped limiting posts 23 and the two limiting plates 4. Then, by pulling the pull plate 34, the connecting plate 351 moves downward. Through the action of the connecting plate 351, the pull rod 352 can pull the slider 355 to move under the action of the U-shaped guide rail 353, so that the clamping plate 356 is moved out of the inner cavity of the supporting main board 31. At this time, the supporting auxiliary board 32 can be rotated and moved downward, so as to move the two supporting auxiliary boards 32 to the opposite sides of the two main baffles 21, so as to limit and fix the folded main baffle 21 and side folding baffle 22. Finally, holding the two handles one 5 can move the box body.

[0040] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A portable foldable trolley case, comprising two movable support columns (1), characterized in that: The upper surfaces of the two moving support columns (1) are fixedly connected with a folding assembly (2). The inner wall of the folding assembly (2) is slidably connected with a folding support assembly (3). The front and rear parts of the lower surface of the folding support assembly (3) are respectively lapped on the upper surfaces of the two moving support columns (1). The upper surfaces of the front and rear parts are both fixedly connected with limit plates (4), and the two limit plates (4) are located directly above the two moving support columns (1). The upper surfaces of the two limit plates (4) are both fixedly connected with a first handle (5).

2. The portable foldable trolley case according to claim 1, characterized in that: The folding assembly (2) includes two main baffles (21). The lower surfaces of the two main baffles (21) are respectively fixedly connected with the upper surfaces of the two moving support columns (1). The left and right parts of the opposite surfaces of the two main baffles (21) are hingedly connected with two side folding baffles (22), and the two side folding baffles (22) are located on the left and right sides of the folding support assembly (3). The upper surfaces of the two main baffles (21) are both fixedly connected with U-shaped limit columns (23). The lower surfaces of the opposite parts of the two U-shaped limit columns (23) are respectively lapped on the upper surfaces of the two side folding baffles (22).

3. A portable foldable trolley case according to claim 1, wherein: The folding support assembly (3) includes a support main board (31). The left and right sides of the support main board (31) are respectively slidably connected with the opposite surfaces of the two side folding baffles (22). Symmetrically two support sub-boards (32) are hingedly connected to the front and rear sides of the support main board (31). The lower surfaces of the two support sub-boards (32) are respectively lapped on the upper surfaces of the two moving support columns (1). A second handle (33) is rotatably connected to the inner wall of the middle part of the support main board (31). The outer walls of the opposite parts of the two support sub-boards (32) are respectively clamped with the inner walls of the left and right parts of the support main board (31). The inner walls of the opposite parts of the two support sub-boards (32) are both slidably connected with pull plates (34). The left and right sides of the two pull plates (34) are both fixedly connected with fixing assemblies (35). The outer walls of the opposite parts of the four fixing assemblies (35) are respectively clamped with the inner cavity of the support main board (31).

4. A portable foldable trolley case according to claim 3, characterized in that: The two fixing assemblies (35) include two connecting plates (351). The opposite surfaces of the two connecting plates (351) are respectively fixedly connected with the left and right sides of the pull plate (34). The outer walls of the two connecting plates (351) are respectively slidably connected with the inner cavity of the support sub-board (32).

5. A portable foldable trolley case according to claim 4, characterized in that: A pull rod (352) is fixedly connected to the upper part behind the connecting plate (351). A U-shaped guide rail (353) is movably sleeved on the outer wall of the pull rod (352). The lower surface of the U-shaped guide rail (353) is fixedly connected to the inner cavity of the supporting auxiliary plate (32). A spring (354) is fixedly connected to the opposite surfaces of the connecting plate (351) and the U-shaped guide rail (353), and the spring (354) is located below the pull rod (352). A slider (355) is slidably connected to the outer wall in the middle of the U-shaped guide rail (353). The front surface of the slider (355) is fixedly connected to the rear surface of the pull rod (352). A clamping plate (356) is fixedly connected to the rear surface of the slider (355). The outer wall of the clamping plate (356) is movably sleeved in the inner cavity of the supporting auxiliary plate (32). The rear part of the outer wall of the clamping plate (356) is clamped in the inner cavity of the supporting main plate (31).

6. The portable foldable trolley case according to claim 5, wherein: A rubber block (357) is lapped on the rear surface of the slider (355), and the rubber block (357) is located below the clamping plate (356). The rear surface of the rubber block (357) is fixedly connected to the inner wall of the U-shaped guide rail (353).

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