Strong-impact-resistant rotational molding box
By incorporating an inner frame, partitions, and a pulley lifting plate inside the rotomolded box, the problems of collision damage and inconvenience in moving items inside the box are solved, achieving the effects of strong impact resistance and convenient movement.
Patent Information
- Application Number
- CN202423213327.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing rotomolded boxes are prone to collision damage between items during transportation and are inconvenient to move, especially when transporting heavy items.
The design incorporates a combination of components such as an inner frame, dividers, threaded rods, clamping plates, and pulley lifting plates to achieve stable positioning of items and convenient movement of the rotomolded box.
It effectively prevents items from being damaged by collision inside the rotomolded box and improves the moving efficiency and handling convenience of the rotomolded box.
Smart Images
Figure CN223619206U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotomolded box technology, specifically to a rotomolded box resistant to strong impact. Background Technology
[0002] Rotomolded boxes are plastic boxes manufactured using a rotational molding process. This process involves heating and melting plastic raw materials, then rotating them through a mold to distribute the melt evenly on the inner wall under centrifugal force. After cooling and solidification, the box is demolded to obtain the desired shape. This process can produce products with complex shapes, uniform wall thickness, and high strength, while also achieving a high surface finish. Rotomolded boxes offer several advantages, including corrosion resistance, lightweight portability, aesthetic appeal, and durability. These characteristics make them popular in various applications requiring the protection and storage of goods, particularly excelling in military, transportation, and logistics fields. However, existing technologies have the following drawbacks:
[0003] While existing rotomolded crates have high outer shell strength and are lined with foam for protection, their internal space is relatively limited, offering only a single storage area. This lack of stability among the items means that when a single crate contains a large number of items, strong impacts or accidental drops during transport can cause collisions and damage. Additional shock protection measures, such as airbags or foam padding, are needed for each item, which is time-consuming. Furthermore, existing rotomolded crates often lack wheels for stacking, requiring the use of side handles for lifting. This makes moving heavy crates very difficult and inconvenient. Utility Model Content
[0004] This invention provides a rotomolded box resistant to strong impacts to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A rotomolded box resistant to strong impact includes a rotomolded box body, a rotomolded box lid on the top of the rotomolded box body, lifting handles on both the left and right sides of the rotomolded box body, and several spring hooks on the front and both sides of the rotomolded box body, with the spring hooks on the left and right sides located above the lifting handles. Several stacking positioning strips are fixedly installed on the top of the rotomolded box lid. An inner frame is fitted into the inner cavity of the rotomolded box body. Sponge pads are fixedly adhered to the bottom and both sides of the inner wall of the inner frame. A partition plate is fixedly installed between the left and right sides of the inner wall of the inner frame. Insertion slots penetrating the inner cavity are opened on both the front and rear sides of the inner frame. Sponge pads are fixedly installed on both the front and rear sides of the inner wall of the rotomolded box body, with two sponge pads respectively engaging with two insertion slots. The partition plate has two lifting holes penetrating from front to back.
[0007] A further improvement of this utility model is that: the partition plate is provided with a lifting slide groove that runs through the front and rear, the lifting slide groove is located between two lifting holes, a threaded rod is movably installed on the bottom of the inner wall of the lifting slide groove, a knob groove is provided on the top of the partition plate, the top end of the threaded rod passes through the inner side of the knob groove and a knob is fixedly installed thereon, a lifting block is threadedly installed on the outer wall of the threaded rod, and the lifting block is slidably connected to the lifting slide groove.
[0008] A further improvement of this utility model is that: a pressure plate is fixedly installed on both the left and right sides of the lifting block, the left and right sides of the two pressure plates overlap with the left and right sides of the inner wall of the inner frame, and a sponge pad is fixedly installed on the bottom of the two pressure plates.
[0009] A further improvement of this utility model is that: the bottom of the rotational molding box is provided with a number of stacking slots, and the number of stacking slots are respectively aligned vertically with a number of stacking positioning strips.
[0010] A further improvement of the present invention is that: a drive box is fixedly installed on the lower rear side of the rotomolded box, and pulley lifting plates are provided on both the left and right sides of the bottom of the rotomolded box. The two pulley lifting plates are respectively located between two adjacent stacking slots, and pulleys are fixedly installed on the front and rear sides of the bottom of the two pulley lifting plates.
[0011] A further improvement of this utility model is that: the rotational molding box has a drive compartment, which is located below the inner frame; a lifting threaded rod is movably installed on the bottom of the inner wall of the drive box; the top end of the lifting threaded rod extends through to the top of the drive box and is fixedly installed with a rotating handle; a lifting extension plate is threaded onto the outer wall of the lifting threaded rod; a lifting groove extending through to the inner cavity of the drive compartment is opened on the front side of the inner wall of the drive box; and the front end of the lifting extension plate extends through the lifting groove into the inner cavity of the drive compartment.
[0012] A further improvement of this utility model is that: a sliding rod is fixedly installed between the upper and lower sides of the inner wall of the drive compartment; the lifting groove is slidably connected to the sliding rod; two lateral extension plates are fixedly installed on the left and right sides of the lifting groove; and a hanging rod is fixedly installed at the bottom of the lateral extension plate; pulley lifting grooves extending to the bottom of the rotomolded box are opened on the left and right sides of the bottom of the inner wall of the drive compartment; two pulley lifting plates are slidably connected to the two pulley lifting grooves respectively; and the bottom ends of the two hanging rods on the left and right sides are fixedly connected to the tops of the pulley lifting plates on the left and right sides respectively.
[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0014] 1. This utility model provides a rotomolded box resistant to strong impacts. By cooperating with the inner frame, partition plate, threaded rod, clamping plate and insertion slot, a large number of items of the same size from the same batch can be placed in the same rotomolded box and clamped and positioned. This prevents multiple items inside the rotomolded box from colliding and being damaged when subjected to strong impacts, thereby improving the rotomolded box's ability to protect the placed items from strong impacts.
[0015] 2. This utility model provides a rotomolded box that is resistant to strong impacts. Through the cooperation of stacking positioning strips, stacking slots, drive box, drive compartment, pulley lifting plate, and pulleys, multiple rotomolded boxes can be moved quickly on the ground without affecting stacking. This eliminates the need to carry heavy rotomolded boxes after placing heavy items, saving manpower and improving movement efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the rotomolded box cover of this utility model in its open state;
[0018] Figure 3 This is a schematic diagram of the inner frame for placing the structure of this utility model;
[0019] Figure 4 This is a top-view schematic diagram of the rotational molding box body of this utility model.
[0020] Figure 5 This is a cross-sectional schematic diagram of the rotational molding housing and drive box of this utility model.
[0021] In the diagram: 1. Rotomolded box body; 11. Inner frame; 12. Divider plate; 121. Lifting slide; 122. Threaded rod; 123. Knob; 124. Lifting block; 125. Pressing plate; 126. Second sponge pad; 13. Insertion slot; 14. First sponge pad; 15. Lifting hole; 16. Drive box; 161. Lifting threaded rod; 162. Rotary handle; 163. Lifting extension plate; 164. Lifting slot; 165. Side extension plate; 166. Hanging rod; 17. Stacking slot; 18. Pulley lifting plate; 181. Pulley; 19. Drive compartment; 191. Slide rod; 192. Pulley lifting slot; 2. Rotomolded box cover; 3. Stacking positioning strip; 4. Lifting handle; 5. Spring buckle. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] like Figure 1 , Figure 2 As shown, this utility model provides a rotomolded box resistant to strong impact, including a rotomolded box body 1, a rotomolded box cover 2 on the top of the rotomolded box body 1, lifting handles 4 on both the left and right sides of the rotomolded box body 1, several spring buckles 5 on the front and both sides of the rotomolded box body 1, the spring buckles 5 on the left and right sides being located above the lifting handles 4, several stacking positioning clips 3 fixedly installed on the top of the rotomolded box cover 2, an inner frame 11 is snapped into the inner cavity of the rotomolded box body 1, sponge pads are fixedly adhered to the bottom of the inner wall of the inner frame 11 and both the left and right sides, a partition plate 12 is fixedly installed between the left and right sides of the inner wall of the inner frame 11, and insertion slots 13 penetrating the inner cavity are opened on both the front and rear sides of the inner frame 11, and sponge pads 14 are fixedly installed on both the front and rear sides of the inner wall of the rotomolded box body 1, with two sponge pads 14 snapped into two insertion slots 13 respectively, and two lifting holes 15 penetrating from front to back are opened on the partition plate 12.
[0024] When it is necessary to put the same batch of items into the rotomolded box, the rotomolded box lid 2, which is hinged at the top of the rotomolded box body 1, can be opened by opening all the spring buckles 5 to release the limit and thus open it. Then, hold the two lifting holes 15 opened on the partition plate 12 and pull the entire inner frame 11 out of the inner cavity of the rotomolded box body 1. Put the items into the inner cavity of the inner frame 11 through the placement slots 13 opened on the front and back sides of the inner frame 11, and place them under the pressure plate 125. Then, the inner frame 11 can be put back into the inner cavity of the rotomolded box body 1 through the lifting holes 15, and the sponge pad 14 is inserted into the placement slot 13 to ensure the flatness of the front and back sides of the inner frame 11.
[0025] like Figure 3As shown, the partition plate 12 has a lifting slide 121 that runs through the front and back. The lifting slide 121 is located between two lifting holes 15. A threaded rod 122 is movably installed on the bottom of the inner wall of the lifting slide 121. A knob groove is opened on the top of the partition plate 12. The top of the threaded rod 122 passes through the inner side of the knob groove and a knob 123 is fixedly installed. A lifting block 124 is threaded on the outer wall of the threaded rod 122. The lifting block 124 is slidably connected to the lifting slide 121. A pressure plate 125 is fixedly installed on both the left and right sides of the lifting block 124. The left and right sides of the two pressure plates 125 overlap with the left and right sides of the inner wall of the inner frame 11, respectively. A sponge pad 126 is fixedly installed on the bottom of the two pressure plates 125.
[0026] By rotating the knob 123 in the knob slot at the top of the partition plate 12, the threaded rod 122 in the lifting slide 121 is rotated. The threaded connection between the threaded rod 122 and the lifting block 124 drives the pressing plates 125 on the front and rear sides of the partition plate 12 to descend, pressing down and positioning the items placed in the same batch. The sponge pad 126 is in direct contact with the items to prevent damage from pressure. This ensures that the multiple items are finally pressed together, preventing the items inside the rotomolded box 1 from colliding and being damaged when subjected to strong impact.
[0027] like Figure 4 , Figure 5 As shown, the bottom of the rotomolded box 1 has several stacking slots 17, which are aligned vertically with several stacking positioning strips 3. A drive box 16 is fixedly installed on the lower rear side of the rotomolded box 1. Pulley lifting plates 18 are provided on both the left and right sides of the bottom of the rotomolded box 1, with two pulley lifting plates 18 located between two adjacent stacking slots 17. Pulleys 181 are fixedly installed on the front and rear sides of the bottom of the two pulley lifting plates 18. The rotomolded box 1 has a drive compartment 19 located below the inner frame 11. A lifting threaded rod 161 is movably installed on the bottom of the inner wall of the drive box 16. The top of the lifting threaded rod 161 extends through to the top of the drive box 16 and is fixedly installed with a rotating handle 162. A lifting extension is threaded onto the outer wall of the lifting threaded rod 161. The inner wall of the drive box 16 has a lifting groove 164 that extends into the inner cavity of the drive compartment 19. The front end of the lifting extension plate 163 extends through the lifting groove 164 into the inner cavity of the drive compartment 19. A slide rod 191 is fixedly installed between the upper and lower sides of the inner wall of the drive compartment 19. The lifting groove 164 is slidably connected to the slide rod 191. Two lateral extension plates 165 are fixedly installed on both the left and right sides of the lifting groove 164. A hanging rod 166 is fixedly installed at the bottom of the lateral extension plate 165. Pulley lifting grooves 192 that extend into the bottom of the rotomolded box 1 are opened on both the left and right sides of the bottom of the inner wall of the drive compartment 19. Two pulley lifting plates 18 are slidably connected to the two pulley lifting grooves 192 respectively. The bottom ends of the two hanging rods 166 on the left and right sides are fixedly connected to the tops of the pulley lifting plates 18 on the left and right sides respectively.
[0028] When multiple rotomolded boxes 1 need to be stacked, simply lift one of the rotomolded boxes 1 using the lifting handle 4 and align the stacking slot 17 at the bottom with the stacking positioning strip 3 above the rotomolded box cover 2 of the other rotomolded box 1 to complete stable stacking. When a heavier rotomolded box 1 needs to be moved, simply rotate the rotating handle 162 on the top of the drive box 16 to rotate the lifting threaded rod 161 inside the drive box 16. The threaded connection between the lifting threaded rod 161 and the lifting extension plate 163 drives the part of the lifting extension plate 163 that passes through the lifting groove 164 into the drive compartment 19 to descend. During descent, the lifting mechanism can also be used to lower the extension plate 163. The sliding connection between the extension plate 163 and the slide bar 191 maintains descent stability. By using the hanging rods 166 at the bottom of the two lateral extension plates 165 on the left and right sides of the lifting extension plate 163 to the top of the pulley lifting plate 18, the two pulley lifting plates 18 can be driven to descend. After passing through the pulley lifting groove 192, they continue to descend until the pulley 181 touches the ground. When stacking is required again, the handle 162 can be reversed to raise the lifting extension plate 163, driving the pulley lifting plate 18 and the pulley 181 to pass through the pulley lifting groove 192 and retract into the drive compartment 19. This allows for the rapid movement of the rotomolded box 1 containing heavy items without affecting its stacking.
[0029] The working principle of this impact-resistant rotomolded box will be explained in detail below.
[0030] like Figure 1-5As shown, when placing items from the same batch into a rotomolded box, the rotomolded box lid 2, hinged at the top of the box body 1, can be opened by releasing all the spring latches 5, thus opening it. Then, by holding the two lifting holes 15 on the partition plate 12, the entire inner frame 11 can be pulled out from the inner cavity of the rotomolded box body 1. The items to be placed are then placed into the inner cavity of the inner frame 11 through the placement slots 13 on the front and back sides of the inner frame 11, on the front and back sides of the partition plate 12, and positioned below the clamping plate 125. Then, the inner frame 11 can be placed back into the inner cavity of the rotomolded box body 1 using the lifting holes 15, and the sea... The first sponge pad 14 is inserted into the slot 13 to ensure the flatness of the front and back sides of the inner frame 11. Then, the knob 123 in the knob slot at the top of the partition plate 12 is rotated, which drives the threaded rod 122 in the lifting slide 121 to rotate. The threaded connection between the threaded rod 122 and the lifting block 124 drives the pressing plates 125 on the front and back sides of the partition plate 12 to descend, pressing down and positioning the items placed in the same batch. The second sponge pad 126 is in direct contact with the items to prevent them from being crushed. This ensures that the multiple items are finally pressed together, preventing the items inside the rotomolded box 1 from being damaged when subjected to strong impact. Damage may occur due to collisions. When multiple rotomolded boxes 1 need to be stacked, simply lift one of the rotomolded boxes 1 using the lifting handle 4 and align the stacking slot 17 at the bottom with the stacking positioning strip 3 above the rotomolded box cover 2 of the other rotomolded box 1 to achieve stable stacking. When it is necessary to move a heavier rotomolded box 1, simply rotate the rotating handle 162 on the top of the drive box 16 to rotate the lifting threaded rod 161 inside the drive box 16. The threaded connection between the lifting threaded rod 161 and the lifting extension plate 163 will drive the lifting mechanism. The extension plate 163 passes through the lifting groove 164 and enters the inner cavity of the drive compartment 19, descending. During descent, the sliding connection between the lifting extension plate 163 and the slide rod 191 can maintain descent stability. The fixed connection between the hanging rods 166 at the bottom of the two lateral extension plates 165 on the left and right sides of the lifting extension plate 163 and the top of the pulley lifting plate 18 can drive the two pulley lifting plates 18 to descend. After passing through the pulley lifting groove 192, it continues to descend until the pulley 181 contacts the ground. This allows for the rapid movement of the rotomolded box 1 containing heavy items without affecting its stacking.
[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A rotomolded box resistant to strong impact, comprising a rotomolded box body (1), a rotomolded box cover (2) provided on the top of the rotomolded box body (1), lifting handles (4) provided on both the left and right sides of the rotomolded box body (1), and a plurality of spring latches (5) provided on the front and both the left and right sides of the rotomolded box body (1), wherein the spring latches (5) on the left and right sides are located above the lifting handles (4), characterized in that: The top of the rotomolded box cover (2) is fixedly installed with several stacking positioning clips (3). The inner cavity of the rotomolded box body (1) is fitted with an inner frame (11). The bottom and left and right sides of the inner wall of the inner frame (11) are fixedly bonded with sponge pads. A partition plate (12) is fixedly installed between the left and right sides of the inner wall of the inner frame (11). The front and rear sides of the inner frame (11) are provided with insertion slots (13) that penetrate its inner cavity. The front and rear sides of the inner wall of the rotomolded box body (1) are fixedly installed with sponge pads (14). The two sponge pads (14) are respectively fitted with the two insertion slots (13). The partition plate (12) is provided with two lifting holes (15) that penetrate from front to back.
2. The rotomolded box resistant to strong impact according to claim 1, characterized in that: The partition plate (12) has a through-type lifting groove (121) between the two lifting holes (15). A threaded rod (122) is movably installed on the bottom of the inner wall of the lifting groove (121). A knob groove is provided on the top of the partition plate (12). The top of the threaded rod (122) extends through to the inside of the knob groove and a knob (123) is fixedly installed thereon. A lifting block (124) is threaded on the outer wall of the threaded rod (122). The lifting block (124) is slidably connected to the lifting groove (121).
3. The impact-resistant rotomolded box according to claim 2, characterized in that: The lifting block (124) is fixedly installed with pressure plates (125) on both the left and right sides. The left and right sides of the two pressure plates (125) overlap with the left and right sides of the inner wall of the inner frame (11) respectively. The bottom of the two pressure plates (125) is fixedly installed with sponge pads (126).
4. The impact-resistant rotomolded box according to claim 1, characterized in that: The bottom of the rotational molding box (1) is provided with several stacking slots (17), and the several stacking slots (17) are respectively aligned with several stacking positioning strips (3).
5. The rotomolded box resistant to strong impact according to claim 1, characterized in that: A drive box (16) is fixedly installed on the lower rear side of the rotomolded box (1). Pulley lifting plates (18) are provided on both the left and right sides of the bottom of the rotomolded box (1). The two pulley lifting plates (18) are located between two adjacent stacking slots (17). Pulleys (181) are fixedly installed on the front and rear sides of the bottom of the two pulley lifting plates (18).
6. The impact-resistant rotomolded box according to claim 5, characterized in that: The rotational molding housing (1) has a drive compartment (19) located below the inner frame (11). A lifting threaded rod (161) is movably installed on the bottom of the inner wall of the drive box (16). The top end of the lifting threaded rod (161) extends through to the top of the drive box (16) and is fixedly installed with a rotating handle (162). A lifting extension plate (163) is threaded onto the outer wall of the lifting threaded rod (161). A lifting groove (164) extending through to the inner cavity of the drive compartment (19) is opened on the front side of the inner wall of the drive box (16). The front end of the lifting extension plate (163) extends through the lifting groove (164) to the inner cavity of the drive compartment (19).
7. The impact-resistant rotomolded box according to claim 6, characterized in that: A slide rod (191) is fixedly installed between the upper and lower sides of the inner wall of the drive compartment (19). The lifting groove (164) is slidably connected to the slide rod (191). Two lateral extension plates (165) are fixedly installed on the left and right sides of the lifting groove (164). A hanging rod (166) is fixedly installed at the bottom of the lateral extension plate (165). A pulley lifting groove (192) extending to the bottom of the rotomolded box (1) is opened on the left and right sides of the bottom of the inner wall of the drive compartment (19). Two pulley lifting plates (18) are slidably connected to the two pulley lifting grooves (192) respectively. The bottom ends of the two hanging rods (166) on the left and right sides are fixedly connected to the tops of the pulley lifting plates (18) on the left and right sides respectively.