Rotational molding box convenient to carry

Abstract

The utility model relates to the technical field of rotational molding boxes, in particular to a rotational molding box convenient to carry, which comprises a plastic box and a box cover, the box cover covers the plastic box, pulleys are respectively mounted at four corners of the bottom end of the plastic box, and circular grooves are respectively formed in the inner sides of the pulleys. Articles are placed in the plastic box and covered with the box cover, then the plastic box is pushed to be conveniently carried and moved through the pulleys at the four corners of the bottom, during stacking, the pulleys on the outside plastic box fall into the square grooves in the box cover in the embodiment, the round grooves correspond to the balls in position by rotating the wheels on the pulleys, and the round balls are fixed through the elasticity of the springs in the grooves. The balls are clamped into the circular grooves, so that external plastic boxes can be stacked on the box cover of the plastic box in the implementation scheme, similarly, the plastic box in the implementation scheme can be stacked on the box cover of the external plastic box, stacking is stable, the plastic box at the bottommost part is pushed, and the stacked plastic boxes can be moved and carried.

Description

Technical Field

[0001] The utility model relates to the field of roto-molding boxes, in particular to a roto-molding box which is convenient to carry. Background Art

[0002] Roto-molded boxes use plastic as the main raw material and are formed through one-time rotational molding. They have the advantages of light weight, low cost, corrosion resistance, and long service life. Roto-molded boxes of the same model must be able to be stacked stably and lifted during use.

[0003] However, in the process of using, the current roto-molded boxes are often equipped with rollers at the bottom for easy transportation. However, when the roto-molded boxes are stacked with rollers, they are not stable. Utility Model Content

[0004] The purpose of the present invention is to provide a roto-molded box that is easy to carry, so as to solve the problem raised in the above background technology that in the process of use, the current roto-molded boxes are often equipped with rollers at the bottom for easy transportation. However, the roto-molded boxes with rollers installed are not stable when stacked.

[0005] To achieve the above object, the utility model provides the following technical solution: a rotationally molded box that is easy to carry, comprising a plastic box and a box cover, wherein the box cover is covered on the plastic box, pulleys are respectively installed at the four corners of the bottom end of the plastic box, and circular grooves are respectively opened on the inner sides of the pulleys;

[0006] A limiting structure is installed on the box cover, and the limiting structure corresponds to the position of the pulley one by one. The limiting structure includes a square groove, a groove, a spring and a ball;

[0007] The square groove is provided on the box cover, the groove is provided on the square groove, the spring is installed in the groove, and the ball is installed on the spring.

[0008] Preferably, a reinforcing structure is installed outside the plastic box. The number of the reinforcing structures is three and the reinforcing structures are equidistantly distributed outside the plastic box. The reinforcing structure includes a frame-shaped groove and reinforcing ribs. The frame-shaped groove is opened outside the plastic box, and the reinforcing ribs are installed in the frame-shaped groove.

[0009] Preferably, the reinforcing rib is placed in the frame-shaped groove, and a connecting structure is installed at the node of the reinforcing rib. The connecting structure is arranged corresponding to the reinforcing rib, and the connecting structure includes two threaded holes, a connecting plate, two mounting holes and two bolts;

[0010] The two threaded holes are respectively opened on both sides of the node of the reinforcing rib, the two mounting holes are respectively opened on both sides of the connecting plate, each of the bolts passes through a mounting hole, and each of the bolts is sleeved in the threaded hole.

[0011] Preferably, a mounting groove is provided on the plastic box, and a sealing gasket is installed in the mounting groove.

[0012] Preferably, a partition is inserted transversely into the plastic box.

[0013] Preferably, a strip plate is installed on the partition, a strip groove is opened in the plastic box, and the strip plate is inserted into the strip groove.

[0014] Preferably, the plastic box and the box cover are rotatably connected via a hinge.

[0015] Preferably, buckle grooves are respectively provided on both sides of the top of the box cover, and handles are rotatably installed in the buckle grooves through pins.

[0016] The utility model has at least the following beneficial effects:

[0017] 1. Put the items into the plastic box and close the box lid. Then push the plastic box through the pulleys at the four corners of the bottom to facilitate transportation and movement. When stacking, the pulleys on the external plastic box fall into the square grooves on the box lid in this embodiment, and the wheels on the pulleys are rotated to make the circular grooves and the positions of the balls correspond. Through the elasticity of the springs in the grooves, the balls are stuck in the circular grooves, so that the external plastic boxes can be stacked on the box lid on the plastic box in this embodiment. Similarly, the plastic boxes in this embodiment can be stacked on the box lid on the external plastic boxes, making the stacking stable. Pushing the plastic box at the bottom can make the stacked plastic boxes move and transport.

[0018] 2. Place the reinforcement ribs in the frame-shaped grooves on the plastic box in sequence, so that the mounting holes on the connecting plate correspond to the threaded holes on the reinforcement ribs. Then pass the bolts through the mounting holes and screw them into the threaded holes to connect the reinforcement rib nodes. The reinforcement ribs enhance the stability of the plastic box and prevent damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the partition, strip plate and strip groove structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the square slot, groove and spring structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the threaded hole, connecting plate and mounting hole structure of the utility model.

[0023] Figure 5 This is a schematic diagram of the pulley and circular groove structure of the utility model.

[0024] In the figure: 1. Plastic box; 2. Box cover; 3. Hinge; 4. Buckle groove; 5. Handle; 6. Pulley; 7. Round groove; 8. Limiting structure; 9. Square groove; 10. Groove; 11. Spring; 12. Ball; 13. Reinforcement structure; 14. Frame groove; 15. Reinforcement rib; 16. Connection structure; 17. Threaded hole; 18. Connection plate; 19. Mounting hole; 20. Bolt; 21. Mounting groove; 22. Sealing gasket; 23. Partition; 24. Strip plate; 25. Strip groove. DETAILED DESCRIPTION

[0025] See also Figure 1-Figure 5 The utility model provides a technical solution for a rotomolding box that is easy to carry: a rotomolding box that is easy to carry, comprising a plastic box 1 and a box cover 2, the box cover 2 covering the plastic box 1, pulleys 6 are respectively installed at the four corners of the bottom end of the plastic box 1, and circular grooves 7 are respectively opened on the inner sides of the pulleys 6;

[0026] A limiting structure 8 is installed on the box cover 2. The limiting structure 8 corresponds to the position of the pulley 6. The limiting structure 8 includes a square groove 9, a groove 10, a spring 11 and a ball 12.

[0027] A square groove 9 is provided on the box cover 2, a groove 10 is provided on the square groove 9, a spring 11 is installed in the groove 10, a ball 12 is installed on the spring 11, and the plastic box 1 is a rotationally molded box (the position of the ball and the groove is designed so that when the pulley is placed in the square groove, the ball just fits into the groove);

[0028] Put the items into the plastic box 1 and close the box lid 2, then push the plastic box 1 through the pulleys 6 at the four corners of the bottom for easy transportation and movement. When stacking, the pulley on the external plastic box falls into the square groove 9 on the box lid 2 in this embodiment, and the wheel on the pulley 6 is rotated to make the circular groove correspond to the position of the ball 12. Through the elasticity of the spring 11 in the groove 10, the ball 12 is stuck in the circular groove, so that the external plastic box can be stacked on the box lid 2 on the plastic box 1 in this embodiment. Similarly, the plastic box 1 in this embodiment can be stacked on the box lid on the external plastic box, so that the stacking is stable, and pushing the plastic box 1 at the bottom can make the stacked plastic box 1 move and transport.

[0029] A reinforcement structure 13 is installed outside the plastic box 1. There are three reinforcement structures 13, which are evenly distributed outside the plastic box 1. The reinforcement structure 13 includes a frame-shaped groove 14 and a reinforcement rib 15. The frame-shaped groove 14 is opened outside the plastic box 1 and is integrally formed outside the plastic box 1. The reinforcement rib 15 is installed in the frame-shaped groove 14.

[0030] The reinforcing rib 15 is placed in the frame-shaped groove 14. The reinforcing rib 15 is made of steel with a thickness between 0.5-1 cm. The node of the reinforcing rib 15 is installed with a connecting structure 16. The connecting structure 16 is arranged corresponding to the reinforcing rib 15. The connecting structure 16 includes two threaded holes 17, a connecting plate 18, two mounting holes 19 and two bolts 20.

[0031] Two threaded holes 17 are respectively opened on both sides of the node of the reinforcement rib 15, and two mounting holes 19 are respectively opened on both sides of the connecting plate 18. Each bolt 20 passes through a mounting hole 19, and each bolt 20 is sleeved in the threaded hole 17. The reinforcement ribs 15 are placed in the frame-shaped grooves 14 on the plastic box 1 in sequence, so that the mounting holes 19 on the connecting plate 18 correspond to the threaded holes 17 on the reinforcement rib 15, and then the bolts 20 are passed through the mounting holes 19 and screwed into the threaded holes 17 to connect the nodes of the reinforcement ribs 15. The reinforcement ribs 15 enhance the stability of the plastic box 1 and prevent damage.

[0032] The plastic box 1 is provided with a mounting groove 21 , in which a sealing gasket 22 is installed. The sealing gasket 22 is made of fluororubber and has corrosion resistance and high temperature resistance. The sealing gasket 22 is 0.2-0.3 cm higher than the plane of the plastic box 1 .

[0033] A partition 23 is inserted horizontally into the plastic box 1, and a strip plate 24 is installed on the partition 23. A strip groove 25 is opened in the plastic box 1, and the strip plate 24 is inserted into the strip groove 25. When placing items by category, the partition 23 can be placed in the plastic box 1, and the strip plate 24 can be inserted into the strip groove 25. The partition 23 divides the internal space of the plastic box 1 into two, and items can be placed by category.

[0034] The plastic box 1 and the box cover 2 are rotatably connected by a hinge 3. A lock is installed between the plastic box 1 and the box cover 2 on the opposite side of the hinge 3. Buckle grooves 4 are respectively opened on both sides of the top of the box cover 2, and handles 5 are rotatably installed in the buckle grooves 4 through pin shafts.

[0035] When using the conveniently transported rotational molded box, first, when making the plastic box 1, manually place the reinforcing ribs 15 in the frame-shaped grooves 14 on the plastic box 1 in sequence, so that the mounting holes 19 on the connecting plate 18 correspond to the threaded holes 17 on the reinforcing ribs 15, and then pass the bolts 20 through the mounting holes 19, so that the bolts 20 are screwed into the threaded holes 17, so that the nodes of the reinforcing ribs 15 are connected, and the reinforcing ribs 15 enhance the stability of the plastic box 1 to avoid damage. When in use, put the items into the plastic box 1, and when placing the items by category, the partition 23 can be put into the plastic box 1, and the strip plate 24 can be inserted into the strip groove 25. The partition 23 divides the internal space of the plastic box 1 into two, and the items can be placed by category. The box cover 2 is rotated on the plastic box 1 through the hinge 3 to close the plastic box 1, and The box cover 2 is pressed on the sealing gasket 22 to seal the gap between the box cover 2 and the plastic box 1, the lock is fastened, the handle 5 in the buckle groove 4 is triggered, and the handle 5 is held to push the plastic box 1 through the pulleys 6 at the four corners of the bottom for easy transportation and movement. When stacking, the pulley on the external plastic box falls into the square groove 9 on the box cover 2 in this embodiment, and the wheel on the pulley 6 is rotated to make the circular groove correspond to the position of the ball 12. Through the elasticity of the spring 11 in the groove 10, the ball 12 is stuck in the circular groove, so that the external plastic box can be stacked on the box cover 2 on the plastic box 1 in this embodiment. Similarly, the plastic box 1 in this embodiment can be stacked on the box cover on the external plastic box, so that the stacking is stable, and pushing the bottom plastic box 1 can make the stacked plastic box 1 move and transport.

Claims

1. A rotomolded box that is easy to carry, comprising a plastic box (1) and a box cover (2), characterized in that: The box cover (2) is placed on the plastic box (1), and pulleys (6) are respectively installed at the four corners of the bottom end of the plastic box (1), and circular grooves (7) are respectively opened on the inner sides of the pulleys (6); A limiting structure (8) is installed on the box cover (2), and the limiting structure (8) corresponds to the position of the pulley (6) one by one. The limiting structure (8) includes a square groove (9), a groove (10), a spring (11) and a round ball (12); The square groove (9) is formed on the box cover (2), the groove (10) is formed on the square groove (9), the spring (11) is installed in the groove (10), and the ball (12) is installed on the spring (11).

2. A conveniently transportable rotomolded box according to claim 1, characterized in that: A reinforcing structure (13) is installed outside the plastic box (1), the number of the reinforcing structures (13) is three, and the reinforcing structures (13) are equidistantly distributed outside the plastic box (1). The reinforcing structure (13) includes a frame-shaped groove (14) and reinforcing ribs (15), the frame-shaped groove (14) is opened outside the plastic box (1), and the reinforcing ribs (15) are installed in the frame-shaped groove (14).

3. A conveniently transportable rotomolded box according to claim 2, characterized in that: The reinforcing rib (15) is placed in the frame-shaped groove (14), and a connection structure (16) is installed at the node of the reinforcing rib (15). The connection structure (16) is arranged corresponding to the reinforcing rib (15), and the connection structure (16) includes two threaded holes (17), a connecting plate (18), two mounting holes (19) and two bolts (20); The two threaded holes (17) are respectively opened on both sides of the node of the reinforcing rib (15), and the two mounting holes (19) are respectively opened on both sides of the connecting plate (18). Each of the bolts (20) passes through a mounting hole (19), and each of the bolts (20) is sleeved in the threaded hole (17).

4. The rotomolded box for easy transportation according to claim 1, characterized in that: The plastic box (1) is provided with a mounting groove (21), and a sealing gasket (22) is installed in the mounting groove (21).

5. The rotomolded box that is easy to carry according to claim 1, characterized in that: A partition (23) is inserted transversely into the plastic box (1).

6. The convenient-to-carry rotomolding box according to claim 5, characterized in that: A strip plate (24) is mounted on the partition (23), a strip groove (25) is provided in the plastic box (1), and the strip plate (24) is inserted into the strip groove (25).

7. The rotomolded box for easy transportation according to claim 1, characterized in that: The plastic box (1) and the box cover (2) are rotatably connected via a hinge (3).

8. The convenient-to-carry rotomolding box according to claim 7, characterized in that: Buckle slots (4) are respectively provided on both sides of the top end of the box cover (2), and handles (5) are rotatably mounted in the buckle slots (4) via pins.

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