Fireproof anti-falling polymer barrel
By combining a multi-layered structural design with protective components, the problem of fire-resistant and impact-resistant polymer buckets being prone to cracking when dropped has been solved, achieving higher strength and impact resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JUYI PLASTIC PROD CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-12
AI Technical Summary
Existing fireproof and impact-resistant polymer buckets are prone to cracking when dropped due to insufficient structural strength and fail to effectively distribute stress.
The design employs a multi-layer structure, including an outer layer, a first middle layer, a second middle layer, a third middle layer, and an inner layer. These layers are made of polycarbonate, cross-linked polyethylene, ethylene-vinyl acetate copolymer foam, and polypropylene, respectively, and incorporate nano-silica and high-strength fibers. The external protective components are fitted onto the top and bottom of the barrel using two interlocking rings to form a complete frame that wraps around the outside, creating a protective barrier and significantly improving the barrel's impact resistance.
It significantly improves the overall strength and impact resistance of the bucket, reduces the risk of breakage due to insufficient structural strength, and forms a protective barrier through protective components, thereby enhancing impact resistance.
Smart Images

Figure CN224225661U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, specifically to a fireproof and shock-resistant polymer bucket. Background Technology
[0002] Polymer materials are widely used in the packaging and container manufacturing industry due to their light weight, corrosion resistance, and ease of processing and molding, such as for storing liquid chemicals, food, and daily necessities.
[0003] A search revealed a utility model patent in China, CN217779415U, which discloses a fire-resistant and impact-resistant polymer bucket, relating to the field of packaging technology. The aim is to solve the problem of poor impact resistance in traditional double-ring buckets. The key technical features are: a bucket body, with rings of a diameter larger than the bucket body's diameter fixedly connected to both the top and bottom ends; a first buffer portion detachably connected to the outer side of the rings; and a second buffer portion detachably connected to the middle section of the bucket body. The distance from the outer peripheral wall of the second buffer portion to the rings is greater than the distance from the outer peripheral wall of the first buffer portion to the rings.
[0004] The aforementioned polymer buckets are designed with a buffer to increase their impact resistance. However, when the bucket is dropped, the liquid inside will violently compress the bucket wall due to inertia. If the bucket structure is not strong enough, it may still crack. There is room for improvement. Utility Model Content
[0005] The purpose of this invention is to provide a fireproof and impact-resistant polymer bucket to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fireproof and impact-resistant polymer bucket, comprising a bucket body, the bucket body comprising an outer layer, a first middle layer, a second middle layer, a third middle layer, a fourth middle layer, and an inner layer, wherein the first middle layer, the second middle layer, the third middle layer, and the fourth middle layer are located in the middle position, the first middle layer is positioned close to the outside, the first middle layer is made of polycarbonate material, the second middle layer is positioned at the bottom of the first middle layer, the second middle layer is made of cross-linked polyethylene material, the third middle layer is positioned at the bottom of the second middle layer, the third middle layer is made of ethylene-vinyl acetate copolymer foam material, and the fourth middle layer is positioned at the bottom of the third middle layer, the fourth middle layer is made of polypropylene material.
[0007] As a further preferred embodiment of this technical solution, a second additive is added to the interior of the outer layer, and the second additive is made of nano-silica material.
[0008] As a further preferred embodiment of this technical solution, a first reinforcing fiber is added inside the second middle layer, and the first reinforcing fiber is made of aramid fiber material.
[0009] As a further preferred embodiment of this technical solution, a second reinforcing fiber is added inside the fourth middle layer, and the second reinforcing fiber is made of high-strength glass fiber material.
[0010] This design increases the overall strength of the bucket while also dispersing stress, effectively preventing cracking due to insufficient structural strength. The first inner layer, polycarbonate, possesses high strength and impact resistance. The addition of nano-silica as a second additive significantly enhances the material's toughness and drop resistance. The second inner layer, cross-linked polyethylene, exhibits good toughness and impact resistance. Combined with the first reinforcing fiber, aramid fiber, it further strengthens the material's strength and toughness, allowing the bucket to better disperse stress and reduce the risk of deformation and breakage. The third inner layer, ethylene-vinyl acetate copolymer foam, possesses excellent impact resistance, effectively absorbing and dispersing energy when the bucket is impacted, reducing the impact on the contents. The fourth inner layer, polypropylene, incorporates high-strength glass fiber as a second reinforcing fiber, significantly improving the overall strength and toughness of the material. When the bucket is impacted, it absorbs and disperses impact energy, reducing stress concentration and effectively resisting the impact of drops, thus lowering the risk of bucket breakage.
[0011] As a further preferred embodiment of this technical solution, the outer layer is disposed on the outermost part of the barrel body, and a first additive is added inside the outer layer. The outer layer and the first additive are respectively brominated polystyrene and antimony trioxide.
[0012] As a further preferred embodiment of this technical solution, the inner layer is located at the innermost part, and the inner layer is made of polytetrafluoroethylene material.
[0013] As a further preferred embodiment of this technical solution, a protective component is installed on the outside of the barrel. The protective component includes a first collar and a second collar fitted on the outside of the barrel, with the first collar and the second collar located at the top and bottom of the barrel, respectively.
[0014] As a further preferred embodiment of this technical solution, the outer side of the first collar is provided with several hinge seats distributed at equal intervals, and a connecting rod is hinged inside each of the hinge seats. The outer side of the second collar is provided with several limiting seats distributed at equal intervals. The movable ends of the connecting rods are respectively inserted into the limiting seats. Two connecting pins are slidably inserted into the limiting seats and connecting rods that are close to each other. A connecting block is fixedly connected to one end of two adjacent connecting pins.
[0015] Place collar one and collar two on the top and bottom of the bucket respectively. Then, grasp the movable end of the connecting rod and flip it upwards. Next, insert the movable end of the connecting rod into the corresponding limiting seat. Then, grasp the connecting block and pass the connecting pin through the limiting seat and the connecting rod. Since there are two connecting pins, it can be ensured that the connecting rod will not flip after being restrained. Finally, repeat the operation to fix the other connecting rods into the corresponding other limiting seats. At this time, collar one, collar two and several connecting rods form a complete frame. This frame wraps around the outside of the bucket, forming a protective barrier, which significantly improves the impact resistance of the bucket.
[0016] As a further preferred embodiment of this technical solution, a buffer strip is provided on the outer wall of each of the connecting rods that are close to each other, and the buffer strip is made of polyurethane foam material.
[0017] As a further preferred embodiment of this technical solution, the connecting block is made of magnets, and the limiting seat is made of iron.
[0018] This utility model provides a fireproof and impact-resistant polymer bucket, which has the following beneficial effects:
[0019] (1) By setting an intermediate layer, this utility model can increase the overall strength of the bucket body and give the bucket body the effect of dispersing stress, effectively avoiding the problem of the bucket body cracking due to insufficient structural strength. The first intermediate layer of polycarbonate has high strength and impact resistance. After adding the second additive nano silica for modification, it can significantly improve the toughness and drop resistance of the material. The second intermediate layer of cross-linked polyethylene inside the first intermediate layer has good toughness and impact resistance. After being combined with the first reinforcing fiber aramid fiber, it further enhances the strength and toughness of the material, so that the bucket body can better disperse stress and reduce the risk of deformation and breakage. The third intermediate layer of ethylene-vinyl acetate copolymer foam inside the second intermediate layer has excellent impact resistance and can effectively absorb and disperse energy when the bucket is hit by external force, reducing the impact force on the items inside the bucket. The fourth intermediate layer of polypropylene inside the third intermediate layer is added with the second reinforcing fiber high-strength glass fiber, which can significantly improve the overall strength and toughness of the material. When the bucket is hit by external force, it can absorb and disperse the impact energy, reduce stress concentration, effectively resist the impact force when falling, and reduce the risk of bucket body breakage.
[0020] (2) By setting up protective components, the first collar and the second collar are respectively placed on the top and bottom of the barrel. Then, the movable end of the connecting rod is grasped and flipped upward. Then, the movable end of the connecting rod is inserted into the corresponding limiting seat. Then, the connecting block is grasped and the connecting pin is passed through the limiting seat and the connecting rod. Since there are two connecting pins, it can be ensured that the connecting rod will not flip after being restricted. Finally, the operation is repeated to fix the other connecting rods in the corresponding other limiting seats. At this time, the first collar, the second collar and several connecting rods form a complete frame. This frame wraps around the outside of the barrel and forms a protective barrier, thereby significantly improving the impact resistance of the barrel. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a partially enlarged structural diagram of the protective component of this utility model;
[0023] Figure 3 This is a first-view structural diagram of the barrel material of this utility model;
[0024] Figure 4 This is a first-view structural diagram of the barrel material of this utility model;
[0025] In the diagram: 1. Barrel body; 2. Buffer strip; 3. Protective components; 101. Outer layer; 102. First middle layer; 103. Second middle layer; 104. Third middle layer; 105. Fourth middle layer; 106. Inner layer; 107. First additive; 108. Second additive; 109. First reinforcing fiber; 110. Second reinforcing fiber; 301. Hinge seat; 302. Connecting rod; 303. Limiting seat; 304. Connecting pin; 305. Connecting block; 306. Collar one; 307. Collar two. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0027] This utility model provides a technical solution: such as Figure 3 and Figure 4As shown in this embodiment, a fireproof and impact-resistant polymer bucket includes a bucket body 1. The bucket body 1 includes an outer layer 101, a first middle layer 102, a second middle layer 103, a third middle layer 104, a fourth middle layer 105, and an inner layer 106. The first middle layer 102, the second middle layer 103, the third middle layer 104, and the fourth middle layer 105 are located in the middle position. The first middle layer 102 is located close to the outside and is made of polycarbonate material. The second middle layer 103 is located at the bottom of the first middle layer 102 and is made of cross-linked polyethylene material. The third middle layer 104 is located at the bottom of the second middle layer 103 and is made of ethylene-vinyl acetate copolymer foam material. The fourth middle layer 105 is located at the bottom of the third middle layer 104 and is made of polypropylene material.
[0028] The outer layer 101 contains a second additive 108, which is made of nano-silica material.
[0029] The second middle layer 103 contains a first reinforcing fiber 109, which is made of aramid fiber material.
[0030] The fourth middle layer 105 contains a second reinforcing fiber 110, which is made of high-strength glass fiber material.
[0031] The inner first middle layer 102, polycarbonate, has high strength and impact resistance. After modification with the second additive 108, nano-silica, it can significantly improve the toughness and drop resistance of the material. The second middle layer 103, cross-linked polyethylene, inside the first middle layer 102, has good toughness and impact resistance. After being combined with the first reinforcing fiber 109, aramid fiber, it further enhances the strength and toughness of the material, allowing the bucket body to better disperse stress and reduce the risk of deformation and breakage. The third middle layer 104, ethylene-vinyl acetate copolymer foam, inside the second middle layer 103, has excellent impact resistance and can effectively absorb and disperse energy when the bucket is impacted by external force, reducing the impact force on the items inside the bucket. The fourth middle layer 105, polypropylene, inside the third middle layer 104, is reinforced with the second reinforcing fiber 110, high-strength glass fiber, which can significantly improve the overall strength and toughness of the material. When the bucket is impacted by external force, it can absorb and disperse impact energy, reduce stress concentration, effectively resist the impact force when falling, and reduce the risk of bucket body 1 breaking.
[0032] like Figure 3 and Figure 4As shown, the outer layer 101 is located on the outermost part of the barrel body 1. The outer layer 101 contains a first additive 107. The outer layer 101 and the first additive 107 are brominated polystyrene and antimony trioxide, respectively. Brominated polystyrene can release hydrogen bromide gas during combustion, capture free radicals in the combustion reaction, thereby interrupting the chain reaction of combustion and playing a flame-retardant role. Antimony trioxide will react with hydrogen bromide at high temperature to generate antimony bromide. Antimony bromide can form a heat-insulating and oxygen-barrier protective film on the surface of the material, preventing the transfer of heat and oxygen, and further inhibiting combustion.
[0033] like Figure 3 and Figure 4 As shown, the inner layer 106 is located at the innermost part. The inner layer 106 is made of polytetrafluoroethylene. Polyurethane foam has excellent energy absorption capacity. It has a large number of closed micropores inside. When subjected to external impact, these pores will deform, thereby effectively absorbing and dispersing impact energy.
[0034] like Figure 1 and Figure 2 As shown, a protective component 3 is installed on the outside of the barrel 1. The protective component 3 includes a first collar 306 and a second collar 307 fitted on the outside of the barrel 1. The first collar 306 and the second collar 307 are located at the top and bottom of the barrel 1, respectively.
[0035] The first collar 306 has several hinge seats 301 distributed at equal intervals on its exterior. Each hinge seat 301 is hinged with a connecting rod 302. The second collar 307 has several limit seats 303 distributed at equal intervals on its exterior. The movable ends of the connecting rods 302 are respectively inserted into the limit seats 303. Two connecting pins 304 are slidably inserted into the limit seats 303 and the connecting rods 302 that are close to each other. A connecting block 305 is fixedly connected to one end of two adjacent connecting pins 304.
[0036] The first collar 306 and the second collar 307 are respectively placed on the top and bottom of the barrel 1. Then, the movable end of the connecting rod 302 is grasped and flipped upward. The movable end of the connecting rod 302 is then inserted into the corresponding limiting seat 303. Next, the connecting block 305 is grasped and the connecting pin 304 is passed through the limiting seat 303 and the connecting rod 302. Since there are two connecting pins 304, it can be ensured that the connecting rod 302 will not flip after being restricted. Finally, the operation is repeated to fix the other connecting rods 302 into the corresponding other limiting seats 303. At this time, the first collar 306, the second collar 307 and the several connecting rods 302 form a complete frame. This frame wraps around the outside of the barrel 1, forming a protective barrier, thereby significantly improving the impact resistance of the barrel 1.
[0037] like Figure 1 and Figure 2As shown, several connecting rods 302 are provided with buffer strips 2 on one side of their outer walls, and the buffer strips 2 are made of polyurethane foam material.
[0038] like Figure 2 As shown, the connecting block 305 is made of magnet and the limiting seat 303 is made of iron. When the connecting block 305 and the limiting seat 303 come into contact, they will attract each other, thus ensuring that the position of the connecting pin 304 connected to the connecting block 305 will not change arbitrarily.
[0039] This utility model provides a fireproof and impact-resistant polymer bucket, the specific working principle of which is as follows:
[0040] When the device is in operation, collar 1 (306) and collar 2 (307) are respectively fitted onto the top and bottom of the barrel 1. Then, the movable end of the connecting rod 302 is grasped and flipped upwards. Subsequently, the movable end of the connecting rod 302 is inserted into the corresponding limiting seat 303. Then, the connecting block 305 is grasped and the connecting pin 304 is passed through the limiting seat 303 and the connecting rod 302. Since there are two connecting pins 304, it can be ensured that the connecting rod 302 will not flip after being restricted. Finally, the operation is repeated to fix the other connecting rods 302 into the corresponding other limiting seats 303. At this time, collar 1 (306), collar 2 (307), and several connecting rods 302 form a complete frame. This frame wraps around the outside of the barrel 1, forming a protective barrier, which significantly improves the impact resistance of the barrel 1. The outer layer 101 brominated polystyrene and the first additive 107 antimony trioxide added inside can work together to quickly suppress the spread of flame and reduce the combustion rate. The inner first middle layer Polycarbonate (102) possesses high strength and impact resistance. The addition of nano-silica (108) as a second additive significantly enhances the material's toughness and drop resistance. The second middle layer (103) of cross-linked polyethylene, located inside the first middle layer (102), exhibits good toughness and impact resistance. When combined with the first reinforcing fiber (109) aramid fiber, it further strengthens the material's strength and toughness, allowing the bucket to better disperse stress and reduce the risk of deformation and breakage. The third middle layer (104) of ethylene-vinyl acetate copolymer foam, located inside the second middle layer (103), possesses excellent impact resistance, effectively absorbing and dispersing energy when the bucket is impacted, reducing the impact on the contents. The fourth middle layer (105) of polypropylene, located inside the third middle layer (104), incorporates high-strength glass fiber (110) as a second reinforcing fiber, significantly improving the overall strength and toughness of the material. When the bucket is impacted, it absorbs and disperses impact energy, reducing stress concentration and effectively resisting the impact of a fall, thus lowering the risk of bucket breakage. The innermost layer is 106 polytetrafluoroethylene, a high molecular polymer made by polymerizing tetrafluoroethylene as a monomer. It has excellent chemical stability and hardly reacts with any chemical substances. It can effectively prevent the various chemical substances contained in the container from corroding the container wall and ensure the purity and safety of the contents.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fireproof and impact-resistant polymer bucket, comprising a bucket body (1), characterized in that: The barrel body (1) includes an outer layer (101), a first middle layer (102), a second middle layer (103), a third middle layer (104), a fourth middle layer (105), and an inner layer (106). The first middle layer (102), the second middle layer (103), the third middle layer (104), and the fourth middle layer (105) are located in the middle. The first middle layer (102) is located close to the outside and is made of polycarbonate material. The second middle layer (103) is located at the bottom of the first middle layer (102) and is made of cross-linked polyethylene material. The third middle layer (104) is located at the bottom of the second middle layer (103) and is made of ethylene-vinyl acetate copolymer foam material. The fourth middle layer (105) is located at the bottom of the third middle layer (104) and is made of polypropylene material.
2. The fireproof and impact-resistant polymer bucket according to claim 1, characterized in that: The outer layer (101) contains a second additive (108), which is made of nano-silica material.
3. The fireproof and impact-resistant polymer bucket according to claim 1, characterized in that: The second middle layer (103) contains a first reinforcing fiber (109), which is made of aramid fiber material.
4. The fireproof and impact-resistant polymer bucket according to claim 1, characterized in that: The fourth middle layer (105) contains a second reinforcing fiber (110), which is made of high-strength glass fiber material.
5. A fireproof and impact-resistant polymer bucket according to claim 1, characterized in that: The outer layer (101) is located on the outermost part of the barrel body (1). The outer layer (101) contains a first additive (107). The outer layer (101) and the first additive (107) are respectively brominated polystyrene and antimony trioxide.
6. The fireproof and impact-resistant polymer bucket according to claim 1, characterized in that: The inner layer (106) is located at the innermost part and is made of polytetrafluoroethylene.
7. A fireproof and impact-resistant polymer bucket according to claim 1, characterized in that: The barrel (1) is equipped with a protective component (3), which includes a first collar (306) and a second collar (307) fitted on the outside of the barrel (1). The first collar (306) and the second collar (307) are located at the top and bottom of the barrel (1), respectively.
8. A fireproof and impact-resistant polymer bucket according to claim 7, characterized in that: The first collar (306) is provided with several hinge seats (301) distributed at equal distances on the outside. Each of the hinge seats (301) is hinged with a connecting rod (302). The second collar (307) is provided with several limiting seats (303) distributed at equal distances on the outside. The movable ends of the connecting rods (302) are respectively inserted into the limiting seats (303). Two connecting pins (304) are slidably inserted into the limiting seats (303) and connecting rods (302) that are close to each other. A connecting block (305) is fixedly connected to one end of two adjacent connecting pins (304).
9. A fireproof and impact-resistant polymer bucket according to claim 8, characterized in that: Each of the connecting rods (302) is provided with a buffer strip (2) on one side of its outer wall, and the buffer strip (2) is made of polyurethane foam material.
10. A fireproof and impact-resistant polymer bucket according to claim 8, characterized in that: The connecting block (305) is made of magnets, and the limiting seat (303) is made of iron.