Secondary pollution prevention sealing structure of one-way valve of aluminum bottle
By employing an insertion post and a double rubber ring sealing structure at the input end of the aluminum bottle's one-way valve, the problem of secondary contamination caused by the exposure of the one-way valve's input end is solved, achieving high sealing performance and material purity inside the aluminum bottle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JUN DA METAL PROD CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-04
AI Technical Summary
When materials are being fed into existing aluminum cylinders, the input end of the one-way valve is exposed to the external environment for a long time, causing dust and other impurities to accumulate and enter the aluminum cylinder, resulting in secondary pollution.
The system employs a plug-in seal between the insertion post and the inner wall of the input end, along with a double-sealing structure consisting of a first rubber ring and a second rubber ring, to enhance the sealing between the one-way valve and the aluminum bottle and prevent external contaminants from entering.
It effectively prevents external dust, bacteria and other contaminants from entering the aluminum bottle, ensuring the purity of the stored materials, and enhances the stability of the one-way valve through fixing screws and fixing blocks.
Smart Images

Figure CN224589740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum bottle technology for preventing secondary pollution, specifically to a one-way valve sealing structure for aluminum bottles that prevents secondary pollution. Background Technology
[0002] A one-way valve is installed at the opening of the aluminum bottle to prevent external dust and gas from entering the bottle and contaminating its interior after the stored material has been introduced.
[0003] Existing aluminum cylinders are equipped with a one-way valve at the inlet to address two issues: first, preventing external dust and gases from entering the cylinder and causing contamination after material is added; and second, preventing leakage of stored material during use. However, in practice, when the cylinder runs out of material and new material needs to be added, the inlet of the connecting pipe must be inserted into the one-way valve for material input. But because the inlet of the one-way valve is exposed to the external environment for extended periods, dust and other impurities accumulate inside. When new material is added, these impurities are carried into the cylinder, causing contamination. Utility Model Content
[0004] This invention provides a sealing structure for a one-way valve on an aluminum bottle to prevent secondary contamination. It further enhances the seal between the one-way valve and the aluminum bottle, preventing secondary contamination of the bottle's interior. This addresses the problem of existing aluminum bottles with a one-way valve at the inlet end, which aims to solve two issues: first, preventing external dust and gas from entering the bottle's inner wall and causing contamination after material is injected; and second, preventing leakage of stored material during use. However, in actual use, when the material in the bottle is depleted and new material needs to be added, the inlet end of the connecting pipe must be inserted into the one-way valve for material input. But because the inlet end of the one-way valve is exposed to the external environment for a long time, dust and other impurities accumulate inside. When material is added, these impurities are carried into the aluminum bottle, causing contamination.
[0005] To further enhance the sealing between the one-way valve and the aluminum bottle and prevent secondary contamination of the inside of the aluminum bottle, this utility model provides the following technical solution: a one-way valve sealing structure for preventing secondary contamination of aluminum bottles, including an aluminum bottle, a groove is provided on the bottom surface of the aluminum bottle, and a spray end is connected to the top of the aluminum bottle by a thread. A one-way valve assembly is installed on the upper part of the inner wall of the groove, and an anti-contamination assembly is installed on the lower part of the inner wall of the groove.
[0006] As a preferred embodiment of this utility model, the one-way valve assembly includes a fixing block, a fixing screw, and an input end. The top surface of the fixing block is fixedly connected to the top surface of the inner wall of the groove, and an input pipe is installed on the inner wall of the fixing block.
[0007] As a preferred embodiment of this utility model, there are four fixing screws, which are installed in a rectangular array on the upper part of the one-way valve and the top of the screws are connected to the inner wall of the fixing block. The bottom surface of the input pipe is equipped with a one-way valve to prevent the backflow of the material stored inside the aluminum bottle.
[0008] In a preferred embodiment of this invention, the top surface of the input end is fixedly connected to the bottom surface of the one-way valve, and the inner wall of the one-way valve is in communication with the inner wall of the input end.
[0009] As a preferred technical solution of this utility model, the anti-pollution component includes a sealing plate, a first rubber ring, a convex plate, a sealing groove, and a second rubber ring. The sealing plate is installed on the lower part of the inner wall of the groove and is located below the one-way valve. The outer surface of the sealing plate is connected to the inner wall of the groove by threads. An insertion post for sealing the one-way valve and preventing secondary contamination is installed in the middle of the inner wall of the sealing plate. The inner wall of the sealing plate is connected to the outer surface of the input end by threads.
[0010] As a preferred embodiment of this utility model, the bottom surface of the insertion post is fixedly connected to the inner wall of the sealing plate, the insertion post is inserted into the inner wall of the input end, and the first rubber ring is disposed on the lower outer surface of the insertion post and in contact with the inner wall of the sealing plate.
[0011] As a preferred embodiment of this utility model, there are two convex plates, the top surfaces of the two convex plates are fixedly connected to the bottom surface of the sealing plate, the sealing groove is opened on the bottom surface of the aluminum bottle, the second rubber ring is installed on the inner wall of the sealing groove, and the inner wall of the second rubber ring is in contact with the outer surface of the sealing plate.
[0012] Compared with the prior art, this utility model provides a one-way valve sealing structure for aluminum bottles that prevents secondary pollution, which has the following beneficial effects: This anti-secondary-contamination aluminum bottle one-way valve sealing structure forms a double sealing structure through the insertion of the insertion post into the inner wall of the input end, and the auxiliary sealing of the first and second rubber rings. This effectively prevents external dust, bacteria and other contaminants from entering the aluminum bottle, ensuring the purity of the stored materials.
[0013] The check valve is fixedly connected to the top surface of the groove by a fixing block, and the upper part of the check valve is fixedly connected to the inner wall of the fixing block by four fixing screws, which effectively resists external impact and vibration and ensures the stability of the check valve during operation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the aluminum bottle of this utility model; Figure 3 This is a schematic diagram of the internal structure of the fixing block of this utility model; Figure 4 This is a schematic diagram of the convex plate connection structure of this utility model; Figure 5 This is an exploded view of the one-way valve assembly and the anti-pollution assembly of this utility model.
[0015] In the diagram: 1. Aluminum bottle; 10. Groove; 11. Spray end; 2. One-way valve assembly; 20. Fixing block; 21. Input pipe; 22. Fixing screw; 23. One-way valve; 24. Input end; 3. Anti-pollution assembly; 30. Sealing plate; 31. Insertion post; 32. First rubber ring; 33. Protruding plate; 34. Sealing groove; 35. Second rubber ring. Detailed Implementation
[0016] 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. Example 1
[0017] Please see Figures 1-3 This utility model discloses a one-way valve sealing structure for an aluminum bottle to prevent secondary pollution, including an aluminum bottle 1. A groove 10 is formed on the bottom surface of the aluminum bottle 1. A one-way valve assembly 2 is installed on the upper part of the inner wall of the groove 10, and an anti-pollution assembly 3 is installed on the lower part of the inner wall of the groove 10. Wherein: The one-way valve assembly 2 includes a fixing block 20, the top surface of the fixing block 20 is fixedly connected to the top surface of the inner wall of the groove 10, an input pipe 21 is installed on the inner wall of the fixing block 20, and a one-way valve 23 for preventing the backflow of the stored material inside the aluminum bottle 1 is installed on the bottom surface of the input pipe 21. The anti-contamination component 3 includes a sealing plate 30, which is installed on the lower part of the inner wall of the groove 10. An insertion column 31 for sealing the one-way valve 23 to prevent secondary contamination is installed in the middle of the inner wall of the sealing plate 30.
[0018] Furthermore, the top of the aluminum bottle 1 is connected to a nozzle 11 via a threaded connection.
[0019] Furthermore, the one-way valve assembly 2 also includes fixing screws 22 and an input end 24. There are four fixing screws 22, which are installed in a rectangular array on the upper part of the one-way valve 23 and their top ends are connected to the inner wall of the fixing block 20. The top surface of the input end 24 is fixedly connected to the bottom surface of the one-way valve 23, and the inner wall of the one-way valve 23 is in communication with the inner wall of the input end 24.
[0020] Fix the fixing block 20 to the upper part of the inner wall of the groove 10 on the bottom surface of the aluminum bottle 1, ensuring that the fixing block 20 is tightly connected to the top surface of the inner wall of the groove 10. Install the inlet pipe 21 on the inner wall of the fixing block 20, and install the one-way valve 23 on the bottom surface of the inlet pipe 21, ensuring that the one-way valve 23 can prevent the backflow of the stored material inside the aluminum bottle 1. Fix the upper part of the one-way valve 23 to the inner wall of the fixing block 20 with four fixing screws 22 to form a stable structure. Fix the top surface of the inlet end 24 to the bottom surface of the one-way valve 23, ensuring that the inner wall of the one-way valve 23 is connected to the inner wall of the inlet end 24, forming a complete one-way flow channel. Example 2
[0021] Based on the above embodiment 1, please refer to Figures 4-5 The sealing plate 30 is located at the lower part of the one-way valve 23, and the outer surface of the sealing plate 30 is connected to the inner wall of the groove 10 by threads.
[0022] Furthermore, the inner wall of the sealing plate 30 is connected to the outer surface of the input end 24 by a thread, the bottom surface of the insertion post 31 is fixedly connected to the inner wall of the sealing plate 30, and the insertion post 31 is inserted into the inner wall of the input end 24.
[0023] Furthermore, the anti-pollution component 3 also includes a first rubber ring 32 and a protruding plate 33. The first rubber ring 32 is disposed on the lower outer surface of the insertion post 31 and is in contact with the inner wall of the sealing plate 30. There are two protruding plates 33, and the top surfaces of the two protruding plates 33 are fixedly connected to the bottom surface of the sealing plate 30.
[0024] It should be noted that the protruding plate 33 is used to enhance friction, which makes it easy to manually rotate the closing plate 30 to disengage it from the threaded connection between the grooves 10.
[0025] Furthermore, the anti-pollution component 3 also includes a sealing groove 34 and a second rubber ring 35. The sealing groove 34 is opened on the bottom surface of the aluminum bottle 1, and the second rubber ring 35 is installed on the inner wall of the sealing groove 34. The inner wall of the second rubber ring 35 is in contact with the outer surface of the sealing plate 30.
[0026] The sealing plate 30 is installed on the lower part of the inner wall of the groove 10, and the outer surface of the sealing plate 30 is tightly fitted to the inner wall of the groove 10 by threaded connection. The bottom surface of the insertion post 31 is fixedly connected to the inner wall of the sealing plate 30, and the insertion post 31 is inserted into the inner wall of the input end 24 to form a preliminary seal. The first rubber ring 32 is installed on the lower outer surface of the insertion post 31, ensuring that the first rubber ring 32 is in contact with the inner wall of the sealing plate 30 to enhance the sealing performance. Two protruding plates 33 are fixedly connected to the bottom surface of the sealing plate 30 to facilitate the rotation of the sealing plate 30 during operation. A sealing groove 34 is opened on the bottom surface of the aluminum bottle 1, and a second rubber ring 35 is installed on the inner wall of the sealing groove 34, ensuring that the inner wall of the second rubber ring 35 is in contact with the outer surface of the sealing plate 30 to form a double sealing structure.
[0027] The working principle and usage process of this utility model are as follows: The fixing block 20 is fixed to the upper part of the inner wall of the groove 10 on the bottom surface of the aluminum bottle 1, ensuring a tight connection between the fixing block 20 and the top surface of the inner wall of the groove 10. The input pipe 21 is installed on the inner wall of the fixing block 20, and the one-way valve 23 is installed on the bottom surface of the input pipe 21, ensuring that the one-way valve 23 prevents the backflow of the material stored inside the aluminum bottle 1. The upper part of the one-way valve 23 is fixedly connected to the inner wall of the fixing block 20 using four fixing screws 22, forming a stable structure. The top surface of the input end 24 is fixedly connected to the bottom surface of the one-way valve 23, ensuring that the inner wall of the one-way valve 23 and the inner wall of the input end 24 are in communication, forming a complete one-way flow channel.
[0028] Anti-pollution component installation: Install the sealing plate 30 on the lower part of the inner wall of the groove 10, and ensure that the outer surface of the sealing plate 30 is tightly fitted to the inner wall of the groove 10 through threaded connection. Fix the bottom surface of the insertion post 31 to the inner wall of the sealing plate 30, and insert the insertion post 31 into the inner wall of the input end 24 to form a preliminary seal. Install the first rubber ring 32 on the lower outer surface of the insertion post 31, ensuring that the first rubber ring 32 is in contact with the inner wall of the sealing plate 30 to enhance the sealing performance. Fix two protruding plates 33 on the bottom surface of the sealing plate 30 to facilitate rotation of the sealing plate 30 during operation. Open a sealing groove 34 on the bottom surface of the aluminum bottle 1, and install the second rubber ring 35 on the inner wall of the sealing groove 34, ensuring that the inner wall of the second rubber ring 35 is in contact with the outer surface of the sealing plate 30 to form a double sealing structure.
[0029] Check the sealing performance: Rotate the sealing plate 30 and apply appropriate torque through the convex plate 33 to ensure that the sealing plate 30 is tightly threaded into the inner wall of the groove 10. Check whether the first rubber ring 32 and the second rubber ring 35 are intact and undamaged, and ensure that there is no aging, cracking or deformation.
[0030] Connect the input device: Connect the output end of the device that needs to inject material into the aluminum bottle 1 to the input end 24, ensuring a secure and well-sealed connection to prevent leakage.
[0031] Open the check valve: Start the input device, and the material enters the check valve 23 through the input end 24. Under the action of the input pressure, the valve core of the check valve 23 opens, and the material smoothly enters the aluminum bottle 1.
[0032] Preventing backflow: When the input device stops working or the input pressure decreases, the valve core of the one-way valve 23 automatically closes under the action of the spring or its own gravity to prevent the material inside the aluminum bottle 1 from flowing back to the input end 24, ensuring the one-way nature of the injection process.
[0033] Sealing and anti-contamination components: After injection, rotate the sealing plate 30 to further insert the insertion post 31 into the inner wall of the input end 24, enhancing the sealing effect. The first rubber ring 32 and the second rubber ring 35 form sealing barriers between the insertion post 31 and the inner wall of the sealing plate 30, and between the sealing plate 30 and the bottom surface of the aluminum bottle 1, respectively, effectively preventing external contaminants from entering the interior of the aluminum bottle 1.
[0034] Storage and Transportation: Store aluminum bottle 1 in a dry, clean environment, avoiding direct sunlight and high temperatures. During transportation, ensure aluminum bottle 1 is securely fixed to prevent damage to the sealing structure due to severe vibration.
Claims
1. A secondary pollution prevention one-way valve sealing structure of an aluminum bottle, comprising an aluminum bottle (1), a groove (10) is formed on the bottom surface of the aluminum bottle (1), characterized in that: A one-way valve assembly (2) is installed on the upper part of the inner wall of the groove (10), and an anti-pollution assembly (3) is installed on the lower part of the inner wall of the groove (10), wherein: The one-way valve assembly (2) includes a fixing block (20), the top surface of the fixing block (20) is fixedly connected to the top surface of the inner wall of the groove (10), an input pipe (21) is installed on the inner wall of the fixing block (20), and a one-way valve (23) for preventing the backflow of the stored material inside the aluminum bottle (1) is installed on the bottom surface of the input pipe (21). The anti-pollution component (3) includes a sealing plate (30) installed on the lower part of the inner wall of the groove (10), and an insertion column (31) for sealing the one-way valve (23) to prevent secondary contamination is installed in the middle of the inner wall of the sealing plate (30).
2. The secondary contamination prevention one-way valve sealing structure for an aluminum bottle according to claim 1, characterized in that: The top of the aluminum bottle (1) is connected to a nozzle (11) by a thread.
3. The secondary contamination prevention one-way valve seal for an aluminum bottle of claim 1, wherein: The one-way valve assembly (2) also includes fixing screws (22) and an input end (24). There are four fixing screws (22), which are arranged in a rectangular array and installed on the upper part of the one-way valve (23) with their top ends connected to the inner wall of the fixing block (20). The top surface of the input end (24) is fixedly connected to the bottom surface of the one-way valve (23), and the inner wall of the one-way valve (23) is in communication with the inner wall of the input end (24).
4. The secondary contamination prevention one-way valve seal for an aluminum bottle of claim 1, wherein: The sealing plate (30) is located at the lower part of the one-way valve (23), and the outer surface of the sealing plate (30) is connected to the inner wall of the groove (10) by threads.
5. The secondary contamination prevention seal for a one-way valve of an aluminum bottle of claim 4, wherein: The inner wall of the sealing plate (30) is connected to the outer surface of the input end (24) by a thread, the bottom surface of the insertion post (31) is fixedly connected to the inner wall of the sealing plate (30), and the insertion post (31) is inserted into the inner wall of the input end (24).
6. The secondary contamination prevention one-way valve seal for an aluminum bottle of claim 1, wherein: The anti-pollution component (3) also includes a first rubber ring (32) and a convex plate (33). The first rubber ring (32) is disposed on the lower outer surface of the insertion post (31) and is in contact with the inner wall of the sealing plate (30). There are two convex plates (33), and the top surfaces of the two convex plates (33) are fixedly connected to the bottom surfaces of the sealing plate (30).
7. The secondary contamination prevention one-way valve seal for an aluminum bottle of claim 1, wherein: The anti-pollution component (3) also includes a sealing groove (34) and a second rubber ring (35). The sealing groove (34) is opened on the bottom surface of the aluminum bottle (1), and the second rubber ring (35) is installed on the inner wall of the sealing groove (34). The inner wall of the second rubber ring (35) is in contact with the outer surface of the sealing plate (30).