Draw-bar box body

Abstract

The utility model relates to a draw-bar box body and belongs to the technical field of luggage production. The draw bar box comprises a box shell, a draw bar installed on the box shell, angle beads and idler wheels, the box shell is formed by bending a plastic plate which is cut into a box shell plane unfolding shape, the four corners of the box shell are provided with lap joint portions forming lap joint, the top of the box shell is provided with an installation hole used for installing the draw bar, and an opening used for installing a box body front cover is formed in the front end of the box shell. The angle beads are fixed to the box shell through connecting pieces, and the plastic plate is a PP plate or a PE plate with the surface attached with fabric. The box body is simple in structure and convenient to manufacture, and the raw material cost and the manufacturing cost are reduced while the box body has good strength and rigidity.

Description

TECHNICAL FIELD

[0001] The utility model relates to a draw-bar box, especially to a draw-bar box body, belongs to the field of bag production technology. BACKGROUND

[0002] The draw-bar box is a common tool for people to store articles when going out. The common draw-bar box on the market has two kinds of hard box and soft box. From the production and use of the product, the hard box and the soft box have their advantages and disadvantages: the advantage of the hard box is that the box shell is hard and firm, and is not easy to deform when subjected to external impact or extrusion, and can better isolate external force to protect the articles in the box, and the disadvantage is that the existing box shell is usually made of metal or plastic by special mold pressing, and the production and assembly process of the box body is complex, so the raw materials and production cost are high; the advantage of the soft box is that the box shell is made of fabric (woven cloth / leather) with lining by sewing, and the production and assembly process is simple, and the raw materials and production cost are low, and the disadvantage is that the rigidity of the box body is weak, and the articles in the box are easy to be stressed, deformed or damaged when subjected to external impact or extrusion. Therefore, under the condition of increasingly fierce market competition, it is a technical problem that needs to be considered and solved for bag designers to provide a draw-bar box body with good strength and rigidity, simple processing procedure, convenient production, and low raw material and production cost. SUMMARY

[0003] The utility model mainly solves the technical problems existing in the prior art, and provides a draw-bar box body with good strength and rigidity, simple processing procedure, convenient production, and low raw material and production cost.

[0004] The utility model mainly solves the above technical problem through the following technical scheme: the utility model discloses a box shell, a draw-bar, a corner guard and a roller installed on the box shell, characterized in that the box shell is made of a plastic plate cut into the shape of a plane expansion of the box shell by bending processing, the four corners of the box shell are formed with a lap joint part fixedly connected in a lap joint form, the top of the box shell is provided with a mounting hole for mounting the draw-bar, and the front end of the box shell is formed with an opening for mounting the front cover of the box body, the corner guard is fixed to the box shell through a connecting piece, and the surface of the plastic plate is adhered with a decorative fabric.

[0005] Preferably, the plastic plate is made of a PP plate or a PE plate.

[0006] Preferably, the corner guard covers the lap joint part, and the lap joint part is fixedly connected through a connecting piece.

[0007] Preferably, the roller is fixed to the bottom of the box shell through the corner guard.

[0008] Preferably, the lap joint part is fixedly connected in a sewing mode.

[0009] The utility model discloses a simple structure has the following advantages:

[0010] The utility model discloses a plastic plate with strength and rigidity is used for making box shell, and the plastic plate is light in weight and convenient to bend, and the box shell is stiff and has good rigidity.

[0011] The box shell is simple in manufacturing procedure, and the plastic plate with decorative fabric on the surface is cut into the plane expansion shape of the box shell, then is bent to form the square shell with the opening at the front end and the lap joint at the four corners, and the box shell is formed after the lap joint is connected and fixed.

[0012] Therefore, the utility model discloses simple manufacturing procedure, convenient manufacture, and the box shell has good strength and rigidity and lower manufacturing cost.

[0013] Further, the plastic plate adopts PP plate or PE plate, and the raw material is low in price, which is conducive to reducing the production cost of the box shell.

[0014] Further, the corner guard covers the lap joint and is fixedly connected through the connecting piece, which can cover the lap joint and make the box more beautiful, and the connecting piece for fixing the corner guard can also connect and fix the lap joint, thereby improving the manufacturing efficiency of the box and saving the cost.

[0015] Further, the lap joint is fixedly connected through sewing, which is simple in processing and firm in connection.

[0016] Therefore, the utility model has the advantages of lightness, beauty, firmness of the box shell and low cost of raw materials and manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is a schematic view of the utility model; Figure 1 is a schematic view of another preferred embodiment of the utility model.

[0018] is a schematic view of another preferred embodiment of the utility model. Figure 2 is a schematic view of the box shell in the utility model;

[0019] is a schematic view of another preferred embodiment of the utility model. Figure 3 is a schematic view of the plane expansion of the box shell in the utility model;

[0020] is a schematic view of another preferred embodiment of the utility model. Figure 4 is a schematic view of the back side direction of the utility model;

[0021] is a schematic view of another preferred embodiment of the utility model. Figure 5 is a schematic view of another preferred embodiment of the utility model.

[0022] Explanation of reference numerals: 1. box shell; 11. overlapping portion; 12. mounting hole; 13. opening; 14. back plate; 15. top plate; 16. bottom plate; 17. side plate; 18. overlapping plate; 19. connecting screw hole; 2. pull rod; 3. corner guard; 31. through hole; 4. roller; 5. connecting piece; 51. bolt; 52. gasket; 53. nut. DETAILED DESCRIPTION

[0023] The technical scheme of the present application will be further described in detail below with reference to the embodiments and the accompanying drawings.

[0024] Embodiment 1: as shown in the accompanying drawings, the present application comprises a box shell 1, a pull rod 2, a corner guard 3 and a roller 4 mounted on the box shell 1; Figure 1 , the accompanying Figure 2 , the accompanying Figure 3 , the accompanying Figure 4 drawings, the present application comprises a box shell 1, a pull rod 2, a corner guard 3 and a roller 4 mounted on the box shell 1;

[0025] The box shell 1 is made of a plastic plate cut into the plane unfolded shape of the box shell 1 by bending, the plastic plate is a PP plate, and a decorative fabric is adhered to the surface of the plate;

[0026] The box shell 1 has an opening 13 matching the shape of the front cover of the box body, an overlapping portion 11 fixedly connected in an overlapping manner at the four corners of the box shell 1, and a mounting hole 12 for mounting the pull rod 2;

[0027] The overlapping portion 11 of the box shell 1 is connected and fixed by the connecting piece 5;

[0028] The corner guard 3 covers the overlapping portion 11 and is fixed to the box shell 1 by the connecting piece 5;

[0029] The roller 4 is fixedly connected with the corner guard 3 mounted on the bottom of the box shell 1;

[0030] The connecting piece 5 comprises a bolt 51, a gasket 52 and a nut 53, the bolt 51 is fixedly connected with the gasket 52 and the nut 53 lined on the inner wall of the box shell 1 by penetrating the corner guard 3 and the box shell 1.

[0031] In the process of making the present application, first, a line is drawn on the PP plate or PE plate with a textile fabric adhered to the surface, a complete plane unfolded drawing of the box shell 1 is drawn, the excess part outside is cut off along the contour line on the plane unfolded drawing, a section of overlapping plate 18 for overlapping with the top plate 15 and the bottom plate 16 is left at the upper and lower ends of the side plate 17, a mounting hole 12 is cut out at the position of the middle of the top plate 15 close to the back plate 14, connecting screw holes 19 with a hole diameter matching the bolt 51 are provided at the corresponding positions on the two side ends of the top plate 15 and the bottom plate 16 and on the overlapping plate 18, thereby obtaining the plane unfolded state of the box shell 1;

[0032] The top plate 15, the bottom plate 16 and the two side plates 17 in the unfolded state are bent along the bending lines (the accompanying Figure 3The middle dotted line) is respectively bent 90° to the same side, forming a stereoscopic state box shell 1, the lap plate 18 of the upper and lower end of the side plate 17 is bent 90° along the bending line and is attached to the two side ends of the top plate 15 and the bottom plate 16 to form a lap joint part 11;

[0033] The corner protector 3 is installed on the top of the box shell 1, the through hole 31 corresponding to the position of the connecting screw hole 19 is formed on the corner protector 3, the corner protector 3 is covered on the lap joint part 11 of the top plate 15 and the side plate 17, the bolt 51 is connected and tightened with the gasket 52 and the nut 53 on the inner side of the box shell 1 through the through hole 31 on the corner protector 3, the lap joint plate 18 and the connecting screw hole 19 on the top plate 15;

[0034] The corner protector 3 and the roller 4 are installed on the bottom of the box shell 1, the corner protector 3 is covered on the lap joint part 11 of the bottom plate 16 and the side plate 17, the support of the roller 4 is connected on the corner protector 3, the bolt 51 is connected and tightened with the gasket 52 and the nut 53 on the inner side of the box shell 1 through the support of the roller 4, the through hole 31 on the corner protector 3, the lap joint plate 18 and the connecting screw hole 19 on the bottom plate 16 in sequence;

[0035] Finally, the pull rod 2 is installed at the mounting hole 12 of the box shell 1, and the box body front cover is installed at the opening 13, and after the installation is completed, the utility model is completed.

[0036] Embodiment 2: as shown in the accompanying drawings Figure 2 , the accompanying drawings Figure 3 , the accompanying drawings Figure 4 , the accompanying drawings Figure 5 The utility model discloses a box shell 1, a pull rod 2, a corner protector 3 and a roller 4 installed on the box shell 1;

[0037] The box shell 1 is made of a plastic plate material cut into the plane expansion shape of the box shell 1 and is made through bending, the plastic plate material is a PE plate, and decorative fabric is adhered to the surface of the plate material;

[0038] The box shell 1 has an opening 13 matched with the shape of the box body front cover, a lap joint part 11 formed at the four corners of the box shell 1 and fixedly connected in a lap joint form, and a mounting hole 12 for installing the pull rod 2;

[0039] The lap joint part 11 of the box shell 1 is connected and fixed through sewing;

[0040] The corner protector 3 is fixedly connected with the box shell 1 at the lap joint part 11 through the connecting piece 5;

[0041] The roller 4 is fixedly connected with the corner protector 3 installed on the bottom of the box shell 1;

[0042] The connecting piece 5 includes a bolt 51, a gasket 52 and a nut 53, and the bolt 51 is fixedly connected with the gasket 52 and the nut 53 lined on the inner wall of the box shell 1 through the corner protector 3 and the box shell 1.

[0043] The technical scheme and manufacturing process of the embodiment are basically the same as those of the embodiment 1, and the difference is that in the embodiment, the overlapping part 11 of the box shell 1 is connected and fixed by sewing before the corner guard 3 is installed, and the plastic plate is a PE plate.

[0044] Of course, the above drawings and embodiments are only for explaining and illustrating the utility model, and cannot be regarded as improper limitation of the utility model. Any technical scheme obtained by equivalent adjustment and change according to the utility model by those skilled in the art falls within the protection scope of the utility model.

Claims

1. A trolley case, comprising a case shell (1), a drawbar (2), a corner guard (3) and a roller (4) mounted on the case shell (1), characterized in that: The box shell (1) is made of a plastic plate cut into the flat unfolded shape of the box shell (1) by bending, and the four corners of the box shell (1) are formed with overlapping parts (11) fixedly connected in an overlapping manner, and the top of the box shell (1) is provided with a mounting hole (12) for mounting the pull rod (2), and the front end of the box shell (1) is formed with an opening (13) for mounting the front cover of the box body, and the corner guard (3) is fixed to the box shell (1) by a connecting piece (5), and decorative fabric is adhered to the surface of the plastic plate.

2. The trolley case according to claim 1, characterized in that: The plastic plate is made of PP plate or PE plate.

3. The suitcase body according to claim 1, characterized in that: The corner guard (3) covers the overlapping portion (11), and the overlapping portion (11) is fixedly connected via the connecting piece (5).

4. The suitcase body according to claim 1, characterized in that: The roller (4) is fixed to the bottom of the box shell (1) via the corner guard (3).

5. The trolley case according to claim 2, characterized in that: The overlapping portion (11) is fixedly connected by sewing.

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