Anti-permeation plastic barrel with high sealing performance
By introducing an impermeable membrane layer and a magnetic closure component into the plastic drum, a strong airtight, light-proof preservation and convenient observation of liquid levels are achieved, solving the problems of insufficient sealing and observation difficulties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RIZHAO SHENGHENG ENVIRONMENT PROTECTION TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-01
AI Technical Summary
Existing plastic drums are not airtight enough and it is difficult to observe the liquid level while storing them in the dark.
A plastic cylindrical container was designed, comprising a transparent layer, an anti-permeability membrane layer, a sealing component, and a magnetic closure component. The sealing component is lowered by screwing the lid to achieve a seal. The transparent layer is opened using the magnetic closure component to observe the liquid level, and the container automatically resets to a new seal after observation.
The improved sealing of the plastic drum prevents liquid leakage, ensures the liquid is stored away from light, and facilitates observation of the internal level.
Smart Images

Figure CN224184902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic barrel technology, specifically a plastic barrel with strong sealing and impermeability. Background Technology
[0002] Proper sealing of plastic drums to prevent leakage is crucial. If they contain liquids (such as chemicals, oils, or drinking water), poor sealing can lead to leaks, pollute the environment, and even endanger human health.
[0003] Most plastic drums currently on the market have screw-on lids. While screw-on lids are convenient for installation, their sealing performance needs further improvement. Furthermore, liquids are best stored away from light, as light (especially ultraviolet and visible light) can trigger or accelerate deterioration, decomposition, and oxidation of liquids, leading to performance degradation, failure, or even the production of harmful substances. Therefore, most plastic drums used for storing chemical liquids are designed to be opaque. While this protects the liquid, it makes it difficult to observe the liquid level inside the drum during filling or evacuation. Utility Model Content
[0004] The purpose of this invention is to provide a plastic cylindrical barrel with strong sealing and impermeability to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic cylindrical barrel with strong sealing and impermeability, comprising a cylindrical barrel body and a barrel lid screwed to the top of the cylindrical barrel body. The cylindrical barrel body has a transparent layer structure and further comprises: a ring installed on the outer wall of the cylindrical barrel body. A sealing component is installed on the inner wall of the top of the barrel lid, and an impermeable membrane layer is laminated on the inner wall of the cylindrical barrel body. A T-shaped annular groove is opened on the inner wall of the ring, and a first closing component and a second closing component are slidably connected to the two ends of the inner wall of the T-shaped annular groove, respectively. A toothed roller is rotatably installed on the inner wall of the ring, and a sealing ring is installed on the inner wall of the cylindrical barrel body.
[0006] The sealing assembly includes a column, a circular plate mounted on the bottom of the column, and a rubber gasket adhered to the bottom of the circular plate.
[0007] The first closure component includes a first arc-shaped plate, a first T-shaped block mounted on one side of the outer wall of the first arc-shaped plate, a first magnet block embedded on one side of the outer wall of the first arc-shaped plate, and a first arc-shaped rack mounted on one side of the outer wall of the first arc-shaped plate.
[0008] The second closure assembly includes a second arc-shaped plate, a second T-shaped block mounted on one side of the outer wall of the second arc-shaped plate, a second magnet block embedded on one side of the outer wall of the second arc-shaped plate, and a second arc-shaped rack mounted on one side of the outer wall of the second arc-shaped plate.
[0009] Both the first and second arc-shaped racks mesh with the toothed roller.
[0010] The first T-shaped block and the second T-shaped block are slidably connected to the two ends of the inner wall of the T-shaped annular groove, respectively.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model discloses a highly airtight and impermeable plastic cylindrical barrel. The impermeable membrane layer improves the impermeability of the barrel body. The barrel lid is screwed onto the barrel body and can drive the sealing component to descend, sealing the opening of the sealing ring and providing better sealing and impermeability for the barrel lid. When it is necessary to observe the liquid level in the barrel body, the first closing component can be moved, which can drive the toothed roller to rotate, thereby driving the second closing component to move synchronously, opening the ring opening and exposing the transparent layer on the barrel body, making it convenient to observe the liquid level in the barrel body. Attached Figure Description
[0013] Figure 1 This is a cross-sectional view of the present invention;
[0014] Figure 2 This is an external structural view of the present invention;
[0015] Figure 3 This is a structural diagram of the cylindrical body of this utility model;
[0016] Figure 4 This is a diagram of the annular structure of this utility model;
[0017] Figure 5 This is an enlarged view of point A in this utility model;
[0018] Figure 6 This is a structural diagram of the sealing assembly of this utility model;
[0019] Figure 7 This is a structural diagram of the first closed component of this utility model;
[0020] Figure 8 This is a structural diagram of the second closed component of this utility model.
[0021] In the diagram: 1. Barrel body; 2. Barrel lid; 3. Transparent layer; 4. Circular ring; 5. Sealing assembly; 501. Column; 502. Circular plate; 503. Rubber pad; 6. Permeable membrane layer; 7. T-shaped annular groove; 8. First closing assembly; 801. First arc-shaped plate; 802. First T-shaped block; 803. First magnet block; 804. First arc-shaped rack; 9. Second closing assembly; 901. Second arc-shaped plate; 902. Second T-shaped block; 903. Second magnet block; 904. Second arc-shaped rack; 10. Toothed roller; 11. Sealing ring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-8 This utility model provides a plastic cylindrical barrel with strong sealing and impermeability, including a cylindrical barrel body 1 and a barrel lid 2 screwed to the top of the cylindrical barrel body 1. The cylindrical barrel body 1 has a transparent layer 3. It also includes: a ring 4 installed on the outer wall of the cylindrical barrel body 1, a sealing component 5 installed on the inner wall of the top of the barrel lid 2, and an impermeable membrane layer 6 composited on the inner wall of the cylindrical barrel body 1. The inner wall of the ring 4 has a T-shaped annular groove 7, and the two ends of the inner wall of the T-shaped annular groove 7 are respectively slidably connected to a first closing component 8 and a second closing component 9. A toothed roller 10 is rotatably installed on the inner wall of the ring 4, and a sealing ring 11 is installed on the inner wall of the cylindrical barrel body 1.
[0024] It should be noted here that: except for the transparent layer 3, the rest of the cylindrical body is an opaque structure;
[0025] The anti-permeability membrane layer 6 improves the impermeability of the barrel body 1. The barrel lid 2 is screwed onto the barrel body 1. During the screwing process, the sealing component 5 can be slowly lowered. After the barrel lid 2 is fully screwed on, the bottom of the sealing component 5 can contact the sealing ring 11, sealing the opening of the sealing ring 11 and providing a better sealing and anti-permeability effect for the barrel lid 2. When it is necessary to observe the liquid level in the barrel body 1, the first closing component 8 can be moved. When the first closing component 8 moves, it can drive the toothed roller 10 to rotate, thereby driving the second closing component 9 to move synchronously, so that the first closing component 8 and the second closing component 9 move away from each other, opening the opening of the ring 4 and exposing the transparent layer 3 on the barrel body 1, making it convenient to observe the liquid level in the barrel body 1.
[0026] In a preferred embodiment, the sealing assembly 5 includes a column 501, a circular plate 502 mounted on the bottom of the column 501, and a rubber pad 503 adhered to the bottom of the circular plate 502.
[0027] It should be noted that: the lid 2 is screwed onto the cylindrical body 1, which can drive the column 501 to descend, thereby driving the circular plate 502 and the rubber pad 503 to descend. The circular plate 502 eventually descends and presses on the sealing ring 11, so that the rubber pad 503 is inserted into the sealing ring 11. The outer wall of the rubber pad 503 is squeezed by the sealing ring 11. The circular plate 502 and the sealing ring 11 can seal the opening of the sealing ring 11.
[0028] In a preferred embodiment, the first closing assembly 8 includes a first arc-shaped plate 801, a first T-shaped block 802 mounted on one side of the outer wall of the first arc-shaped plate 801, a first magnet block 803 embedded on one side of the outer wall of the first arc-shaped plate 801, and a first arc-shaped rack 804 mounted on one side of the outer wall of the first arc-shaped plate 801; the second closing assembly 9 includes a second arc-shaped plate 901, a second T-shaped block 902 mounted on one side of the outer wall of the second arc-shaped plate 901, a second magnet block 903 embedded on one side of the outer wall of the second arc-shaped plate 901, and a second arc-shaped rack 904 mounted on one side of the outer wall of the second arc-shaped plate 901; both the first arc-shaped rack 804 and the second arc-shaped rack 904 mesh with the toothed roller 10; the first T-shaped block 802 and the second T-shaped block 902 are slidably connected to both ends of the inner wall of the T-shaped annular groove 7.
[0029] It should be noted that: the first arc-shaped plate 801 can move along the inner wall of the ring 4, thereby driving the first arc-shaped rack 804 to move, which in turn drives the toothed roller 10 to rotate, which in turn drives the second arc-shaped rack 904 and the second arc-shaped plate 901 to move, so that the ends of the first arc-shaped plate 801 and the second arc-shaped plate 901 that are far apart move closer to each other, and at the same time opens the opening of the ring 4, so that the transparent layer 3 on the barrel body 1 is exposed, making it easy to observe the liquid level in the barrel body 1. After observation, the first arc-shaped plate 801 can be pushed back to its original position, which in turn drives the toothed roller 10 to rotate in the opposite direction, which in turn drives the second arc-shaped plate 901 to its original position, so that the ends of the first arc-shaped plate 801 and the second arc-shaped plate 901 with embedded magnets move closer to each other, and finally one end of the first arc-shaped plate 801 and the second arc-shaped plate 901 sticks together, and the first magnet block 803 and the second magnet block 903 attract each other, blocking the opening of the ring 4 again, preventing external light from shining through the transparent layer 3 onto the liquid in the barrel body 1.
[0030] Working principle: The anti-permeability membrane layer 6 improves the impermeability of the barrel body 1. The barrel lid 2 is screwed onto the barrel body 1. During the screwing process, the barrel lid 2 can drive the column 501 to slowly descend, which in turn drives the circular plate 502 and rubber gasket 503 to descend. The circular plate 502 eventually descends and presses on the sealing ring 11, so that the rubber gasket 503 is inserted into the sealing ring 11. The outer wall of the rubber gasket 503 is squeezed by the sealing ring 11. The circular plate 502 and the sealing ring 11 can seal the opening of the sealing ring 11, which can better seal and prevent seepage of the barrel lid 2.
[0031] When it is necessary to observe the liquid level inside the cylindrical body 1, the first arc-shaped plate 801 can be moved along the inner wall of the ring 4, thereby moving the first arc-shaped rack 804, which in turn moves the toothed roller 10, causing the second arc-shaped rack 904 and the second arc-shaped plate 901 to move. This causes the ends of the first arc-shaped plate 801 and the second arc-shaped plate 901 that are far apart to move closer together, and at the same time, the opening of the ring 4 is opened, exposing the transparent layer 3 on the cylindrical body 1, making it convenient to observe the liquid level inside the cylindrical body 1. After observation, the first arc-shaped plate 801 can be pushed back to its original position, thereby causing the toothed roller 10 to rotate in the opposite direction, which in turn causes the second arc-shaped plate 901 to return to its original position, causing the ends of the first arc-shaped plate 801 and the second arc-shaped plate 901 with embedded magnets to move closer together. Finally, one end of the first arc-shaped plate 801 and the second arc-shaped plate 901 are attached together, and the first magnet block 803 and the second magnet block 903 attract each other, blocking the opening of the ring 4 again and preventing external light from shining through the transparent layer 3 onto the liquid inside the cylindrical body 1.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A plastic cylindrical drum with strong sealing and impermeability, comprising: The cylindrical body (1) and the lid (2) screwed to the top of the cylindrical body (1) have a transparent layer (3) in part; The invention is characterized by further comprising: a ring (4) installed on the outer wall of the cylindrical body (1); a sealing component (5) installed on the inner wall of the top of the lid (2); an anti-permeability membrane layer (6) composited on the inner wall of the cylindrical body (1); a T-shaped annular groove (7) opened on the inner wall of the ring (4); a first closing component (8) and a second closing component (9) slidably connected to the two ends of the inner wall of the T-shaped annular groove (7); a toothed roller (10) rotatably installed on the inner wall of the ring (4); and a sealing ring (11) installed on the inner wall of the cylindrical body (1).
2. The plastic cylindrical barrel with strong sealing and impermeability according to claim 1, characterized in that: The sealing assembly (5) includes a column (501), a circular plate (502) installed at the bottom of the column (501), and a rubber pad (503) adhered to the bottom of the circular plate (502).
3. A plastic cylindrical barrel with strong sealing and impermeability according to claim 1, characterized in that: The first closing component (8) includes a first arc plate (801), a first T-shaped block (802) mounted on one side of the outer wall of the first arc plate (801), a first magnet block (803) embedded on one side of the outer wall of the first arc plate (801), and a first arc-shaped rack (804) mounted on one side of the outer wall of the first arc plate (801).
4. A plastic cylindrical drum with strong sealing and impermeability according to claim 3, characterized in that: The second closing assembly (9) includes a second arc-shaped plate (901), a second T-shaped block (902) mounted on one side of the outer wall of the second arc-shaped plate (901), a second magnet block (903) embedded on one side of the outer wall of the second arc-shaped plate (901), and a second arc-shaped rack (904) mounted on one side of the outer wall of the second arc-shaped plate (901).
5. A plastic cylindrical barrel with strong sealing and impermeability according to claim 4, characterized in that: The first arc-shaped rack (804) and the second arc-shaped rack (904) both mesh with the toothed roller (10).
6. A plastic cylindrical barrel with strong sealing and impermeability according to claim 4, characterized in that: The first T-shaped block (802) and the second T-shaped block (902) are slidably connected to both ends of the inner wall of the T-shaped annular groove (7).