Folding draw-bar box

By designing a folding trolley case, the combination of folding plates, cover plates and support components is used to solve the problem of large space occupancy of the existing trolley case, achieving a foldable and stable unfolding state, and providing a diverse placement of items.

CN223111189UActive Publication Date: 2025-07-18NINGBO ZHONGYI PLASTIC TECH CO LTD
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Patent Information

Application Number
CN202422349764.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-07-18
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

The existing trolley boxes are usually integrally structured, which takes up a large space and is not conducive to storage, and are prone to mutual extrusion deformation.

Method used

A folding trolley box is designed. Through the hinge of the folding plate, the cover plate and the expansion plate and the cooperation of the supporting components, the foldable function of the box plate is realized. The expansion plate is fixed by the fitting of the insert plate and the slot, the elastic card block and the bayonet, and the adjustment of the support position of the support component, and the buckle design of the insertion block and the docking box to reduce space occupied.

Benefits of technology

The foldable function of the trolley box is realized, reducing storage space requirements, avoiding mutual extrusion and deformation, and the expansion plate is stable and fixed in different states, providing a diverse placement of items.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a folding draw-bar box and belongs to the technical field of draw-bar boxes. The folding draw-bar box comprises a pair of box plates, the box plates are respectively provided with a front plate and a rear plate, a folding plate is hinged between the front plate and the rear plate, the folding plate comprises a first plate piece and a second plate piece, the first plate piece is hinged with the second plate piece, and the first plate piece is hinged with the second plate piece. A cover plate is arranged at the tops of the pair of box plates and the two folding plates, unfolding plates are inserted into the two sides of the cover plate respectively, supporting assemblies are arranged on the bottom faces of the two unfolding plates respectively, the bottoms of the supporting assemblies abut against the outer walls of the box plates, and each unfolding plate comprises a plate body; the adjacent sides of the two plate bodies are connected with inserting plates respectively, inserting grooves clamped with the inserting plates are formed in the outer walls of the two plate bodies respectively, the cover plate comprises a cover body, and butt joint boxes are installed on the side edges of the bottom face of the cover body respectively.
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Description

Technical Field

[0001] The utility model relates to the technical field of trolley cases, in particular to a folding trolley case. Background Art

[0002] A trolley case refers to a luggage case with a pull rod and rollers. It is widely used because of its convenience. At the same time, for a trolley case with a pull rod, there are single-tube pull rods and double-tube pull rods, and the tubes of the pull rods are also divided into square tubes and round tubes, which is convenient to drag when walking, greatly reducing the burden.

[0003] Currently, the existing trolley cases are usually of an integral structure. When not in use, they need to occupy a large space for placement. Such a structure is not conducive to the storage of a large number of trolley cases and is also prone to the situation of mutual extrusion and deformation. Summary of the Utility Model

[0004] In order to solve the problems that the existing trolley cases occupy a large space and are not conducive to storage, the utility model provides a folding trolley case.

[0005] In view of the above problems, the technical solution proposed by the utility model is:

[0006] A folding trolley case includes a pair of case plates. The pair of case plates are respectively provided with a front plate and a rear plate. A folding plate is hinged between the front plate and the rear plate. The folding plate includes a first plate member and a second plate member, and the first plate member and the second plate member are hinged to each other. A cover plate is provided at the top of the pair of case plates and the two folding plates. Expansion plates are respectively inserted on both sides of the cover plate. Support components are respectively provided at the bottom surfaces of the two expansion plates, and the bottoms of the support components abut against the outer walls of the case plates.

[0007] Further, the two expansion plates respectively include plate bodies. Insert plates are respectively connected to the adjacent sides of the two plate bodies, and slots that are mutually engaged with the insert plates are respectively formed on the outer walls of the two plate bodies.

[0008] The beneficial effect of adopting the above further scheme is that through the cooperation of the insert plate and the slot, the expansion plate has a folded state. In the folded state, the two expansion plates can be slidably inserted to form a whole.

[0009] Further, the cover plate includes a cover body. Docking boxes are respectively installed on the bottom side edges of the cover body. The inner walls of the docking boxes are mutually fitted with the outer walls of the insert plates. An elastic clamping block is installed at one end of the insert plate, and a clamping notch that is mutually engaged with the elastic clamping block is arranged on one side of the inner wall of the docking box.

[0010] The beneficial effect of adopting the above further solution is that by docking the elastic clamping block to the bayonet, the docking box and the plug board are fixed, so that the position of the unfolding board is stable in the unfolded state and the folded state.

[0011] Further, the support assembly includes a fixed box, a card slot is opened at the bottom end of the fixed box, a rotating block is movably connected inside the card slot, an inclined rod is connected to one side of the rotating block, and a resisting block is connected to one end of the inclined rod.

[0012] The beneficial effect of adopting the above further solution is that by the connection and use of the rotating block and the inclined rod, the inclined rod can swing at the bottom end of the fixed box, which is beneficial to adjusting the support position between the inclined rod and the box board.

[0013] Further, insertion blocks are respectively installed on the outer wall sides of the two plate bodies, one end of the insertion block coincides with one end of the docking box, and the bottom areas of the two plate bodies are equal to the top area of the cover plate.

[0014] The beneficial effect of adopting the above further solution is that due to the positional relationship between the insertion block and the docking box, when the two unfolding boards are in the folded state, they can be folded onto the cover plate and are mutually fastened to the cover plate, and are not easily separated.

[0015] Further, clamping grooves are respectively opened on one side of the front board and the rear board, and a clamping block that is clamped and connected with the clamping groove is connected to the bottom of the cover plate.

[0016] The beneficial effect of adopting the above further solution is that through the cooperation of the clamping groove and the clamping block, when the things in the box are placed very slowly, the cover plate can be installed on the rear board.

[0017] Further, a number of notches are respectively opened on the outer wall sides of the box board, and the outer wall of the resisting block is in contact with the inner wall of one of the notches.

[0018] The beneficial effect of adopting the above further solution is that through the setting of the notch, it can provide a support point for the contact of the resisting block.

[0019] Further, a base is installed at the bottom corner of the box board, and a placement groove is opened on the top surface of the plate body.

[0020] The beneficial effect of adopting the above further solution is that through the setting of the placement groove, it is beneficial to provide a position for placing items on the top of the suitcase.

[0021] Further, a pull rod is inserted through one side of the box board, and a notch that coincides with the pull rod is opened on the side of the cover body.

[0022] The beneficial effect of adopting the above further solution is that by setting the notch, the cover body is prevented from obstructing the pull rod.

[0023] Further, an installation groove for horizontally clamping the inclined rod is formed on one side of the bottom end of the fixed box.

[0024] The beneficial effect of adopting the above further solution is that by setting the installation groove, a placement position is provided for the inclined rod when it is stored.

[0025] Compared with the prior art, the beneficial effect of the present utility model is:

[0026] For this folding trolley case, through the combined use of the folding plate, the cover plate, the unfolding plate and the support assembly, the trolley case has a foldable function, which is beneficial to reducing the placement space and can reduce the situation of mutual extrusion deformation. Among them, the first plate member and the second plate member are hinged and folded in half, so that their openings respectively drive the two box plates to overlap each other, and through the connection of the cover plate, a docking position is provided for the two unfolding plates, and the two unfolding plates can also be docked with each other, which is beneficial to reducing the occupied space of the trolley case. And through the connection and use of the support assembly, when it is stretched, it can play a supporting role for the unfolding plate, and when it is contracted, it can be placed at the bottom of the unfolding plate, which is beneficial to ensuring that the trolley case has a smaller placement space after being folded. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional schematic diagram of a folding trolley case provided by the present utility model;

[0028] Figure 2 A hollowed-out schematic diagram of a folding trolley case provided by the present utility model;

[0029] Figure 3 An unfolded state schematic diagram of a folding trolley case provided by the present utility model;

[0030] Figure 4 A folded state schematic diagram of a folding trolley case provided by the present utility model;

[0031] Figure 5 A bottom view of a folding trolley case provided by the present utility model;

[0032] Figure 6 A schematic diagram of the support assembly of a folding trolley case provided by the present utility model.

[0033] In the figure: 100, case board; 200, folding board; 2001, second board member; 2002, second board member; 300, cover board; 3001, cover body; 3002, notch; 3003, docking box; 3004, bayonet; 400, unfolding board; 4001, board body; 4002, inserting board; 4003, inserting block; 4004, placing groove; 4005, elastic clamping block; 500, pull rod; 600, base; 700, support assembly; 7001, fixed box; 7002, rotating block; 7003, inclined rod; 7004, abutting block; 7005, mounting groove. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figures 1-6 , the present invention provides a technical solution: a folding trolley case, including a pair of case boards 100. The pair of case boards 100 are respectively provided with a front board and a rear board. A folding board 200 is hinged between the front board and the rear board. The folding board 200 includes a first board member 2001 and a second board member 2002. The first board member 2001 and the second board member 2002 are hinged to each other. A cover board 300 is provided at the top of the pair of case boards 100 and the two folding boards 200. Unfolding boards 400 are respectively inserted on both sides of the cover board 300. Support assemblies 700 are respectively provided on the bottom surfaces of the two unfolding boards 400. The bottom of the support assembly 700 abuts against the outer wall of the case board 100. By hinging and folding the first board member 2001 and the second board member 2002, the opening respectively drives the two case boards 100 to overlap each other. And through the connection and use of the cover board 300, a docking position is provided for the two unfolding boards 400, and the two unfolding boards 400 can also be docked with each other, which is beneficial to reducing the occupied space of the trolley case. And through the connection and use of the support assembly 700, when it is stretched, it can play a supporting role for the unfolding board 400, and when it is contracted, it can be placed at the bottom of the unfolding board 400, which is beneficial to ensuring that the trolley case has a smaller placement space after being folded.

[0037] 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 creative efforts shall fall within the protection scope of the present utility model.

[0038] Embodiment 2

[0039] Please refer to Figures 1-6 , as an embodiment of the present utility model, further, the two unfolding plates 400 respectively include plate bodies 4001. The adjacent sides of the two plate bodies 4001 are respectively connected with inserting plates 4002. Slots that are engaged with the inserting plates 4002 are respectively formed on the outer walls of the two plate bodies 4001. Through the cooperative use of the inserting plates 4002 and the slots, the unfolding plates 400 are in a folded state. In the folded state, the two unfolding plates 400 can be slidably inserted to form a whole. The cover plate 300 includes a cover body 3001. Docking boxes 3003 are respectively installed on the bottom side edges of the cover body 3001. The inner walls of the docking boxes 3003 are in line with the outer walls of the inserting plates 4002. An elastic clamping block 4005 is installed at one end of the inserting plate 4002. A clamping opening 3004 that is engaged with the elastic clamping block 4005 is arranged on one side of the inner wall of the docking box 3003. By docking the elastic clamping block 4005 to the clamping opening 3004, the docking box 3003 and the inserting plate 4002 are fixed, so that the positions of the unfolding plates 400 in the unfolded state and the folded state are stable. The support assembly 700 includes a fixed box 7001. A card slot is formed at the bottom end of the fixed box 7001. A rotating block 7002 is movably connected inside the card slot. An inclined rod 7003 is connected to one side of the rotating block 7002. A resisting block 7004 is connected to one end of the inclined rod 7003. Through the connection and use of the rotating block 7002 and the inclined rod 7003, the inclined rod 7003 can swing at the bottom end of the fixed box 7001, which is beneficial to adjusting the support position between the inclined rod 7003 and the box plate 100.

[0040] Embodiment 3

[0041] Please refer to Figures 1-6, as an embodiment of the present utility model, further, insertion blocks 4003 are respectively installed on the outer wall sides of the two plate bodies 4001. One end of the insertion block 4003 is mutually fitted with one end of the docking box 3003, and the bottom area of the two plate bodies 4001 is equal to the top area of the cover plate 300. Due to the positional relationship between the insertion block 4003 and the docking box 3003, when the two unfolding plates 400 are in the folded state, they can be folded onto the cover plate 300 and are mutually snap-fitted with the cover plate 300, being not easily separated. One side of the front plate and the rear plate are respectively provided with clamping grooves, and the bottom of the cover plate 300 is connected with clamping blocks that are mutually snap-fitted with the clamping grooves. Through the cooperative use of the clamping grooves and the clamping blocks, when the things in the box are placed very slowly, the cover plate 300 can be installed on the rear plate. A plurality of notches are respectively provided on the outer wall sides of the box plate 100, and the outer wall of the abutting block 7004 is in contact with the inner wall of one of the notches. Through the setting of the notches, it can provide a support point for the contact of the abutting block 7004. The bottom corners of the box plate 100 are installed with bases 600, and a placement groove 4004 is provided on the top surface of the plate body 4001. Through the setting of the placement groove 4004, it is beneficial to provide a position for placing items on the top of the suitcase. A pull rod 500 is inserted through one side of the box plate 100, and a notch 3002 that is mutually fitted with the pull rod 500 is provided on the side of the cover body 3001. Through the setting of the notch 3002, the cover body 3001 is prevented from obstructing the pull rod 500. An installation groove 7005 for horizontally clamping the inclined rod 7003 is provided on one side of the bottom end of the fixed box 7001. Through the setting of the placement groove 7001, a placement position is provided for the inclined rod 7003 when it is stored.

[0042] Specifically, the working principle of this folding trolley case: When in use, first, check whether the structure of the trolley case is intact. After ensuring the integrity of the structure, then put it into use. Among them, the first plate member 2001 and the second plate member 2002 are hinged and folded in half, so that their opening drives the two box plates 100 to coincide with each other respectively. And through the connection and use of the cover plate 300, a docking position is provided for the two expansion plates 400. And through the cooperation of the insertion plate 4002 and the slot, the expansion plate 400 has a folded state. In the folded state, the two expansion plates 400 can be slidably inserted to form a whole, which is beneficial to reducing the occupied space of the trolley case. And through the connection and use of the support assembly 700, when it is extended, it can play a supporting role for the expansion plate 400, and when it is retracted, it can be placed at the bottom of the expansion plate 400, which is beneficial to ensuring that after the trolley case is folded, it has a smaller placement space. Secondly, the elastic block 4005 is docked to the bayonet 3004, so that the docking box 3003 and the insertion plate 4002 are fixed, so that the positions of the expansion plate 400 in the unfolded state and the folded state are stable. And through the connection and use of the rotating block 7002 and the inclined rod 7003, the inclined rod 7003 can swing at the bottom end of the fixed box 7001, which is beneficial to adjusting the support position between the inclined rod 7003 and the box plate 100. At the same time, due to the positional relationship between the insertion block 4003 and the docking box 3003, when the two expansion plates 400 are in the folded state, they can be folded onto the cover plate 300 and are buckled with the cover plate 300 and are not easily separated.

Claims

1. A folding trolley case, characterized in that, It includes a pair of box plates (100). A front plate and a rear plate are respectively provided on the pair of box plates (100). A folding plate (200) is hinged between the front plate and the rear plate. The folding plate (200) includes a first plate member (2001) and a second plate member (2002). The first plate member (2001) and the second plate member (2002) are hinged to each other. A cover plate (300) is provided at the tops of the pair of box plates (100) and the two folding plates (200). Expansion plates (400) are respectively inserted on both sides of the cover plate (300). Support assemblies (700) are respectively provided on the bottom surfaces of the two expansion plates (400). The bottom of the support assembly (700) abuts against the outer wall of the box plate (100).

2. The foldable trolley case according to claim 1, wherein, The two expansion plates (400) respectively include plate bodies (4001). Insert plates (4002) are respectively connected to the adjacent sides of the two plate bodies (4001). Slots that are engaged with the insert plates (4002) are respectively formed on the outer walls of the two plate bodies (4001).

3. The folding trolley case according to claim 2, wherein, The cover plate (300) includes a cover body (3001). Docking boxes (3003) are respectively installed on the bottom side edges of the cover body (3001). The inner wall of the docking box (3003) fits with the outer wall of the insert plate (4002). An elastic catch (4005) is installed at one end of the insert plate (4002). A bayonet (3004) that is engaged with the elastic catch (4005) is provided on one side of the inner wall of the docking box (3003).

4. A foldable trolley case according to claim 1, wherein, The support assembly (700) includes a fixed box (7001). A card slot is formed at the bottom end of the fixed box (7001). A rotating block (7002) is movably connected inside the card slot. An inclined rod (7003) is connected to one side of the rotating block (7002). A resisting block (7004) is connected to one end of the inclined rod (7003).

5. A foldable trolley case according to claim 3, wherein, Insert blocks (4003) are respectively installed on the outer wall side edges of the two plate bodies (4001). One end of the insert block (4003) fits with one end of the docking box (3003). And the bottom areas of the two plate bodies (4001) are equal to the top area of the cover plate (300).

6. A foldable trolley case according to claim 1, wherein, Card slots are respectively formed on one side of the front plate and the rear plate. A card connecting block that is engaged with the card slot is connected to the bottom of the cover plate (300).

7. The foldable trolley case according to claim 4, characterized in that, A number of notches are respectively formed on the outer wall side edges of the box plate (100). The outer wall of the resisting block (7004) is in contact with the inner wall of one of the notches.

8. The foldable trolley case according to claim 2, wherein, A base (600) is installed at the bottom end corner of the box plate (100). A placement groove (4004) is formed on the top surface of the plate body (4001).

9. The foldable trolley case according to claim 3, characterized in that, A pull rod (500) is inserted through one side of the box plate (100). A notch (3002) that fits with the pull rod (500) is formed on the side of the cover body (3001).

10. A foldable trolley case according to claim 4, wherein, An installation groove (7005) for horizontally engaging the inclined rod (7003) is formed on one side at the bottom end of the fixed box (7001).