A safe anti-blocking sewer sealing gasket

Abstract

This invention provides a safe and clog-resistant sewer sealing gasket, belonging to the technical field of water supply and drainage, and bathroom fixture accessories. The sealing gasket consists of a lower connector, a composite sealing cloth, and an upper connector. The composite sealing cloth is made of a base mesh and modified water-soluble polyvinyl alcohol. When there is no water, the composite sealing cloth seals the sewer inlet, effectively preventing pathogens, microorganisms, and odors from entering the room. When there is water, the polyvinyl alcohol film on the base mesh of the composite sealing cloth dissolves in water and enters the sewage system with the drainage water, eventually degrading. Replacing the composite sealing cloth quickly and effectively restores the seal. This sealing gasket effectively isolates harmful microorganisms and odors from the sewage system while ensuring the normal and effective drainage function of the sewer, eliminating the risk of flooding. This sewer sealing gasket has a simple structure, is easy to use, safe, environmentally friendly, and economical, making it an excellent product for effectively isolating odors and microorganisms in homes, hotels, hospitals, and other places, improving the quality of life.

Description

Technical Field

[0001] This invention relates to the field of water supply and drainage and sanitary ware accessories, specifically to a safe and anti-clogging sewer sealing gasket and its preparation and usage methods. Background Technology

[0002] Poorly sealed sewer drains cause strong odors and microbial contamination in residential homes, hotels, and hospitals. Especially under conditions of strong winds, running range hoods and exhaust fans indoors, and the failure of the sewer water seal, polluted gases carrying large amounts of bacteria, viruses, and parasites can enter the house through the sewer drain. Therefore, sealing sewers is essential. However, current floor drain sealing gaskets on the market have limited functionality; while they block the sewer, they also shut off the drainage function. If a leak occurs in the water supply system and is not detected in time, it can cause flooding in the living room, bedroom, and even the apartment below, causing irreparable damage to carefully crafted wooden floors, furniture, walls, and even the renovations of the apartment below. Traditional drainage systems mostly use water seals for odor prevention, but the sewer water seal itself is a significant source of pollution, breeding insects and microorganisms. Furthermore, traditional odor-proof floor drains have complex structures, are easily entangled in hair and other debris, and cleaning clogged sewers is a tedious and unpleasant task.

[0003] Polyvinyl alcohol (PVA) is an inexpensive, non-toxic, water-soluble polymer with physical properties such as high transparency, good gas barrier properties, high mechanical strength, and excellent film-forming properties. PVA is also a rapidly and completely biodegradable polymer, with its final degradation products being water and carbon dioxide, meeting the needs of a green and environmentally friendly lifestyle.

[0004] Given that traditional drainage system odor-proof mats cannot simultaneously achieve the functions of sealing and preventing odors and ensuring safe drainage, and also do not facilitate the convenient cleaning of debris in sewers, the development of sewer sealing mat products that combine sealing and safe drainage functions is of great significance for improving the living experience of the general public in places such as homes, travel accommodations, and hospitals, and for protecting the health and property safety of the people. Summary of the Invention

[0005] In view of the above-mentioned problems of traditional drainage systems and sewer sealing gaskets, the present invention aims to provide an eco-friendly sewer sealing gasket that integrates safe drainage, odor prevention and cleaning functions. The present invention provides the following technical solution: the lower connector (3) is used to achieve a sealed and anti-slip connection with the floor (1) around the sewer drainage system or the sewer inlet channel (2) by means of nesting, elastic clamping, threading, magnetic attraction, bonding, heavy pressure or hooking. The upper connector (5) combines the permeable composite sealing cloth (4) with the lower connector (3) and the sewer seal by means of nesting, elastic clamping, threading, magnetic attraction, bonding, heavy pressure, etc., to form a fully functional sealed and anti-clogging sewer sealing gasket.

[0006] The composite sealing cloth (4) is made of a modified water-soluble polyvinyl alcohol membrane and a base mesh. The base mesh is composed of ropes, nets, woven fabrics, non-woven fabrics, membranes, or boards with a pore size of 0.05mm to 80mm and a thickness of 0.01mm to 5mm. Its material is composed of water-insoluble substances such as metals, synthetic polymers, natural fibers, inorganic fibers, or ceramics. In addition to providing support and preventing curling of the composite sealing cloth, the base mesh can also play a role in filtering and collecting impurities. The modified polyvinyl alcohol is composed of 100 parts of polyvinyl alcohol with a degree of alcoholysis of 70% to 95%, 0 to 40 parts of plasticizer, 0 to 8 parts of antibacterial agent, 0 to 6 parts of anti-aging agent, 0 to 8 parts of colorant, and 0 to 5 parts of fragrance, etc. The average thickness of the film is 0.01mm to 1mm. Plasticizers are used to improve the processing performance of polyvinyl alcohol, adjust the softness and hardness of the film and its solubility in water; fragrances are used to mask the slight irritating odor of polyvinyl alcohol and regulate the atmosphere; antibacterial and anti-aging agents provide a long-lasting and effective barrier effect for gaskets that are not replaced for a long time; colorants are used to improve the visual visibility of the sealing state of the composite sealing film and the presence or absence of polyvinyl alcohol residue.

[0007] A safe and clog-resistant sewer sealing gasket, its preparation and usage process:

[0008] Step S1: A safe and anti-clogging sewer sealing gasket, wherein the modified polyvinyl alcohol used in the composite sealing cloth processing is made of 100 parts by weight of water-soluble polyvinyl alcohol with a degree of alcoholysis of 70-95%, with the addition of 0-40 parts of plasticizer, 0-8 parts of antibacterial agent, 0-6 parts of anti-aging agent, 0-8 parts of colorant and 0-5 parts of fragrance, stirred and dispersed evenly to form a modified polyvinyl alcohol aqueous solution with a solute mass fraction of 5%-40%, which is then added to a glue tank with temperature control and defoaming function;

[0009] Step S2: The base mesh for composite sealing cloth preparation undergoes surface treatment processes such as degreasing to improve wettability, ensuring that the polyvinyl alcohol aqueous solution can fully wet the base mesh material and preventing pores in the polyvinyl alcohol film during drying. The base mesh is then impregnated with the polyvinyl alcohol aqueous solution, and excess adhesive is scraped off through a slit to form a wet composite sealing cloth of uniform thickness.

[0010] Step S3: The wet composite sealing cloth enters the hot air drying channel of different temperature zones, and after drying, it forms a composite sealing cloth with polyvinyl alcohol pore sealing.

[0011] Step S4: Cut the composite sealing cloth according to the design dimensions and shape;

[0012] Step S5: Test the pore tightness of the cut polyvinyl alcohol sealing film. If the test is successful, seal and moisture-proof package it.

[0013] Step S6: Prepare and assemble the lower connector using processes such as casting, stamping, injection molding, and machining;

[0014] Step S7: Prepare and assemble the connectors using processes such as casting, injection molding, casting, foaming, and machining;

[0015] Step S8: When in use, after checking that there are no foreign objects or water near the sewer and floor drain, install the lower connector (3) on the ground (1) around the sewer or on the sewer inlet channel (2), install the composite sealing cloth (4) and the upper connector (5) on the lower connector, and the upper and lower connectors seal the composite sealing cloth on the sewer inlet channel to form a safe and anti-clogging sewer sealing gasket.

[0016] Step S9: When in use, in a dry state, the composite sealing cloth in the sealing gasket blocks the sewer opening to form a continuous and reliable gas seal, cutting off the path for microorganisms and odors to enter the room through the sewer.

[0017] Step S10: When there is water around the drain, the composite sealing cloth comes into contact with the water, and the water-soluble polyvinyl alcohol material on the base mesh absorbs water, softens and dissolves, and flows into the sewer and sewage treatment system with the water flow and is eventually completely degraded into carbon dioxide and water. The water-insoluble base mesh in the composite sealing cloth still covers the sewer inlet channel to continuously filter and collect debris in the water flow.

[0018] Step S11: After the water has drained, remove the upper connector and throw the remaining filter mesh along with the filter debris into the trash can to easily clean up the debris.

[0019] Step S12: Rinse the drain opening with clean water until the color of the sealant is no longer visible.

[0020] Step S13: After the ground around the sewer is dry, take a new composite sealing cloth and combine it with the upper and lower connectors to form a new safety anti-clogging sealing gasket system. Note that the upper and lower support frames can be reused to save resources.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. This invention effectively seals the sewer to prevent harmful microorganisms and odors from entering the room, while ensuring the safe and reliable drainage function of the sewer.

[0023] 2. The sealing material used in the composite sealing cloth is partially hydrolyzed polyvinyl alcohol, which has good water solubility and degradation properties. It will not clog sewers or cause microplastic pollution to the environment, and meets the requirements of green environmental protection.

[0024] 3. The polyvinyl alcohol in the composite sealing cloth prevents the base mesh from scattering and fraying. The base mesh provides anti-curling and anti-deformation support for the polyvinyl alcohol film, and also facilitates subsequent cleaning of debris.

[0025] 4. This invention has a simple structure, a clear principle, and is easy to use. Except for the inexpensive composite sealing cloth that is easy to produce on a large scale, all other components can be reused, resulting in extremely low operating costs. It is an excellent product for improving the quality of life in homes, travel accommodations, hospitals, and other places. Attached Figure Description

[0026] Figure 1 This is the gravity-fixed safety anti-clogging sewer sealing gasket of Embodiment 1 of the present invention;

[0027] Figure 2 This is Embodiment 2 of the present invention: a magnetically fixed safety anti-clogging sewer sealing gasket.

[0028] Figure 3 This is the nested safety anti-clogging sewer sealing gasket of Embodiment 3 of the present invention;

[0029] Figure 4 This is a simplified schematic diagram of a batch continuous production equipment for composite sealing cloth provided by the present invention.

[0030] The image shows:

[0031] 1. Ground around the sewer; 2. Sewer inlet channel; 3. Lower connector; 4. Composite sealing cloth; 5. Upper connector; 6. Lower seal; 7. Upper seal; 8. Feed roller; 9. Tension controller; 10. Tension measuring sensor; 11. Base mesh; 12. Guide roller; 13. Temperature-controlled defoaming glue tank; 14. Gap scraper; 15. Wet composite sealing cloth; 16. Blower oven; 17. Take-up roller with correction; 18. Correction sensor; 19. Tension uniform adjustment rods on both sides. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that, in the absence of conflict, the embodiments and features and technical solutions in the embodiments of the present invention can be combined with each other. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Example 1:

[0035] Please see Figures 1-4 A safe and clog-proof sewer sealing gasket consists of a lower connector, a composite sealing cloth, and an upper connector. The lower connector is made of 1mm thick 304 stainless steel plate with a drainage hole in the center. The drainage hole is surrounded by stamped grooves that are embedded with soft silicone for upper sealing. The bottom is sealed to the sewer inlet channel by a soft silicone lower seal.

[0036] Preparation of water-soluble polyvinyl alcohol modified solution for composite sealing cloth: 100 parts of polyvinyl alcohol powder with a degree of polymerization of about 1700 and a degree of alcoholysis of about 88%, 15 parts of glycerol plasticizer, 0.3 parts of water-soluble lemon flavoring, and 2.5 parts of cyan blue colorant are added to deionized water while stirring. After stirring and dispersing evenly, a modified polyvinyl alcohol aqueous solution with a mass fraction of 10% is formed.

[0037] Using 60-mesh 304 stainless steel woven mesh with a thickness of approximately 0.2mm as the base material, the entire roll of stainless steel mesh is fed onto a feeding roller equipped with an electromagnetic tension controller. After passing through a tension detector, it enters a glue bath with heating and ultrasonic vibration defoaming functions. The stainless steel mesh is then impregnated with a modified polyvinyl alcohol solution. Excess glue is scraped off by a slit scraper. Under the action of intermolecular forces, a wet composite sealing cloth with modified polyvinyl alcohol solution sealing pores is formed. The wet composite sealing cloth is then dried in a forced-air hot drying oven to form a continuous composite sealing cloth. After passing through a correction and tension uniformity adjustment device, it is neatly wound up. After winding, it is cut into large sheets of composite sealing cloth, stacked in multiple layers, and then punched to form square composite sealing cloth of a certain size. After passing quality inspection, it is sealed and packaged to form the finished composite sealing cloth.

[0038] When using, press Figure 1As shown, the composite sealing cloth is placed on the lower connector, and the soft upper connector is placed on top. Under gravity, the upper connector presses the composite sealing cloth onto the upper seal of the lower connector, sealing the drain opening. In a dry state, it functions as a drain seal. When water flows in, the polyvinyl alcohol on the composite sealing cloth swells and dissolves in the water, entering the drainage network and eventually degrading. The 304 stainless steel mesh base still covers the drain inlet, filtering and collecting debris carried by the water. After drainage, the upper connector is removed, and the 304 stainless steel mesh base, along with debris, is thrown into the trash can, completing the drain cleaning. When the composite sealing cloth is opened, new water flows into the drain, flushing away the deteriorated sewage and forming a clean water seal. Therefore, it is difficult for polluted gases from the drain to enter the room in large quantities during drainage. After draining, rinse the upper and lower connectors of the sewer with clean water until the water is clear and transparent with no color from the composite sealing cloth. The cleaning is then complete. Replace with spare parts or wait for the upper and lower connectors to dry before assembling with new composite sealing cloth to restore the sewer's sealing and odor-proof function.

[0039] Example 2:

[0040] Please see Figures 1-4 This is a safe and clog-resistant sewer sealing gasket, consisting of a lower connector, a composite sealing cloth, and an upper connector. The lower connector is made of 430 magnetic stainless steel, with a soft silicone lower seal at the bottom and a soft silicone upper seal at the top. Figure 2 As shown.

[0041] The composite sealing cloth (4) is prepared by using a water-soluble polyvinyl alcohol modified solution: 100 parts of polyvinyl alcohol powder with a degree of polymerization of about 1700 and a degree of hydrolysis of about 88%, 10 parts of glycerol plasticizer, 5 parts of sorbitol, 0.2 parts of water-soluble rose fragrance, 1 part of nano silver antibacterial aqueous solution, and 0.3 parts of water-based violet colorant are heated, stirred and dispersed evenly, and the pH value is adjusted to weak acidity with citric acid to form a modified polyvinyl alcohol solution with a mass fraction of 15%.

[0042] Using 40-mesh 201 stainless steel mesh, approximately 0.3mm thick, as the base material, the entire roll of stainless steel mesh is fed onto a feeding roller equipped with an electromagnetic tension controller. After passing through a tension detector, it enters a glue bath with heating and ultrasonic vibration defoaming functions, where it is immersed in a modified polyvinyl alcohol solution. Excess glue is scraped off by a scraper slit, forming a wet composite sealing cloth with modified polyvinyl alcohol solution sealing under the action of intermolecular forces. The wet composite sealing cloth is then dried in a forced-air hot drying oven to form a continuous composite sealing cloth. After passing through a correction and tension uniformity adjustment device, it is neatly wound up. After winding, it is cut into large sheets of composite sealing cloth, stacked in multiple layers, and then punched to form a circular composite sealing cloth of a certain size. After passing quality inspection, it is sealed and packaged to form the finished composite sealing cloth.

[0043] During use, insert the lower connector into the drain pipe. The lower seal forms a sealed, anti-slip connection with the inner wall of the drain pipe. Place a composite sealing film on top of the lower connector, and a ring-shaped magnetic ring on top of the upper sealing film. The magnetic force between the upper and lower supports compresses the lower surface of the composite sealing cloth against the upper seal, forming a seal. This achieves a complete seal between the entire sewer system and the indoor environment, preventing odors and microorganisms from the sewer from contaminating the indoor environment. When water flows through, the polyvinyl alcohol on the composite sealing cloth dissolves in water and degrades naturally in the sewer. The new water flowing into the sewer washes away the deteriorated sewage and forms a clean water seal, making it difficult for polluted gases from the sewer to enter the room during drainage. After drainage, dispose of any remaining mesh, hair, or other debris in the composite sealing cloth into the trash can to clean up the debris. Observe whether there is any residual composite sealing cloth color on the support layer; if so, rinse it clean with water. Take a new sealing film and reassemble to restore the sewer's sealing function.

[0044] Example 3:

[0045] Please see Figures 1-4 This is a safe and clog-resistant sewer sealing gasket, composed of a lower connector, a composite sealing cloth, and a connecting piece. The lower support is made of 3mm thick stainless steel plate, with a perforated recess in the center for placing the composite sealing cloth. The recess is surrounded by an annular upper seal. The bottom of the lower support is embedded in the existing sewer, and the lower seal achieves a seal between the lower support and the drainage system. Figure 3 As shown.

[0046] The composite sealing cloth (4) is prepared by using a water-soluble polyvinyl alcohol modified solution: 100 parts of polyvinyl alcohol powder with a degree of polymerization of about 1700 and a degree of hydrolysis of about 88%, 12 parts of polyethylene glycol plasticizer, 0.3 parts of water-soluble lemon flavoring, 3 parts of tea polyphenol antibacterial and antioxidant agent, and 3 parts of cyan blue coloring agent are heated, stirred and dispersed evenly to form a modified polyvinyl alcohol solution with a mass fraction of 10%.

[0047] Using 40-mesh nylon mesh with a thickness of approximately 0.5mm as the base material, the entire roll of base mesh is fed onto a feeding roller equipped with an electromagnetic tension controller, passes through a tension detector, enters a glue bath with heating and ultrasonic vibration defoaming functions, and is then impregnated with a modified polyvinyl alcohol solution. Excess glue is scraped off by a scraper slit, forming a wet composite sealing cloth with modified polyvinyl alcohol solution sealing under the action of intermolecular forces. The wet composite sealing cloth is then dried in a forced-air hot drying oven to form a continuous composite sealing cloth. After passing through a correction and tension uniformity adjustment device, it is neatly wound up. After winding, it is cut into large sheets of composite sealing cloth, stacked in multiple layers, and then punched to form usable composite sealing cloth. After passing quality inspection, it is sealed and packaged to form the finished composite sealing cloth.

[0048] When using, place the composite sealing cloth on top of the lower connector, above the drain outlet. The lower sealing stripe should form a seal with the ground. Place the composite sealing film on the recessed platform of the lower connector, then cover it with the upper connector. The upper and lower connectors are nested together. The bottom of the upper connector presses the composite sealing cloth onto the upper seal of the lower connector, forming a seal to isolate sewage gases and microorganisms. When water flows through, the polyvinyl alcohol film in the composite sealing cloth dissolves in the water and flows into the sewer, where it degrades naturally. After drainage, dispose of any remaining nylon mesh from the composite sealing cloth, along with hair and other debris, into a garbage bag and send it to the solid waste treatment station for cleaning. Observe the support layer for any residual composite sealing cloth color; if present, rinse with clean water. If there is no drainage, simply replace the composite sealing cloth to quickly restore the sealing function.

[0049] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or substitutions to the present invention, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. A safe and clog-resistant sewer sealing gasket, characterized in that, It consists of three parts: a lower connector, a composite sealing cloth, and an upper connector. The composite sealing cloth is made of modified water-soluble polyvinyl alcohol and a base mesh.

2. The safety and anti-clogging sewer sealing gasket according to claim 1, characterized in that... The base mesh for composite sealing fabric is composed of ropes, nets, woven fabrics, non-woven fabrics, films, or boards with a aperture of 0.05mm to 80mm and a thickness of 0.01mm to 5mm. Its material is one or more of the following: metal, synthetic polymer, natural fiber, or inorganic fiber.

3. The safety and anti-clogging sewer sealing gasket according to claim 1, characterized in that... The modified polyvinyl alcohol used in the processing of composite sealing cloth is prepared from 100 parts of water-soluble polyvinyl alcohol with a degree of alcoholysis of 70% to 95%, 0 to 40 parts of plasticizer, 0 to 8 parts of antibacterial agent, 0 to 6 parts of anti-aging agent, 0 to 8 parts of colorant and 0 to 5 parts of fragrance. The average thickness of the polyvinyl alcohol film is 0.01 mm to 1 mm.

4. The safe and anti-clogging sewer sealing gasket according to claim 1, wherein the upper and lower connecting parts are connected to the drainage system by nesting, elastic clamping, thread, magnetic attraction, bonding, heavy pressure, hook and other connection methods to seal and prevent slipping of the composite sealing cloth.

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