Long-acting odor-isolating floor drain with negative-pressure water replenishing function

Abstract

The utility model discloses a negative-pressure water-replenishing long-acting odor-isolating floor drain, which comprises a sealed filter cartridge, a filter cartridge sealing ring, a filter screen, a water-containing dirt-cleaning cartridge main body, a floor drain outer cover main body, a negative-pressure water storage device, a water-containing cartridge sealing ring, a water-containing cartridge water outlet, a water-containing cartridge, a dirt-discharging sealing ring, a dirt-discharging connecting pipe, an exhaust pipe sealing cover, a water storage device exhaust pipe and a water storage device water outlet pipe, the floor drain is mainly characterized in that stored water of a negative pressure water storage device is higher than the lower edge of a water outlet of a water containing barrel, a water outlet pipe opening of the water storage device is formed below the lower edge of the water outlet of the water containing barrel, the water containing barrel is kept at the fixed water storage depth for a long time through the siphon effect, the Bernoulli equation and the air pressure balance principle, and the problem that the floor drain loses the odor isolation function due to water volatilization is solved; the device is simple in structure, convenient to maintain and wide in application range, and has remarkable social value and market prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sanitary wares, especially to a long-acting odor-blocking floor drain with negative pressure water replenishing function. BACKGROUND

[0002] As an important part of building drainage systems, floor drains are widely used in areas such as family balconies, kitchens, shower rooms, and toilets. Even the drainage of wash basins and dishwashing sinks requires separate installation of floor drains. According to statistics, there are about 490 million sets of urban residential buildings in China, and each household needs to install at least 4 to 6 floor drains, which means that the market retention of floor drains is as high as billions. However, existing floor drain products have many shortcomings in terms of sealing performance, long-term effectiveness, and maintenance convenience, making it difficult to meet the needs of modern life for health and hygiene.

[0003] The common floor drains on the market are mainly divided into water-sealed and one-way closed types. Water-sealed floor drains form a sealed barrier through stored water, but the stored water can easily be lost due to evaporation, especially in places such as kitchens and balconies where there is not much fresh water to replenish. Every day, about 1 to 2 millimeters of water depth is evaporated, causing the water-sealing effect to fail within 1 to 2 months. In addition, the actual water-sealing depth of many water-sealed floor drains is lower than the standard requirement of 50 millimeters, further exacerbating the sealing performance deficiency. One-way closed floor drains rely on hard surfaces or soft rubber seals to achieve closure, but since the water flowing into the floor drain often contains impurities such as fiber strips and hair, it can easily jam the moving parts, causing the seal to be not tight. Some new types of floor drains, such as electrically controlled water replenishing and press-to-open / closed, provide additional functions, but still have problems such as complex operation, poor closure, and easy deformation.

[0004] The composition of waste gas in the sewage pipeline mainly includes hydrogen sulfide, ammonia, methane, and other volatile organic compounds. Therefore, the sealing performance of the floor drain is directly related to indoor air quality and the health of the occupants. However, the performance of existing floor drains in terms of long-term sealing and convenient maintenance is not satisfactory, especially in areas where there is not much fresh water to replenish, such as kitchens, balconies, and toilet areas.

[0005] To solve the above problems, the utility model provides a negative pressure water replenishing long-acting odor-blocking floor drain, by setting the stored water height of the negative pressure water storage device higher than the lower edge of the water outlet of the water storage cylinder, and utilizing the siphon effect, Bernoulli's equation, and the principle of air pressure balance, the nozzle of the water outlet pipe of the water storage device is immersed below the water storage surface of the water storage cylinder, thereby achieving the long-term maintenance of water flow stillness and fixed water depth. This design not only solves the problem of evaporation loss of the water seal of traditional floor drains, but also significantly improves the sealing performance and maintenance convenience of the floor drain, providing an innovative solution to improve indoor environmental quality. SUMMARY

[0006] The utility model discloses a long -term smell -proof floor drain with negative pressure water replenishing function to overcome the deficiency existing in prior art.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A negative pressure water replenishing long -term smell -proof floor drain, including sealed filter cylinder, filter cylinder sealing ring, filter screen, water storage and sewage cylinder main part, floor drain cover main part, negative pressure water storage device, water storage cylinder sealing ring, water storage cylinder water outlet, water storage cylinder, sewage sealing ring, sewage connecting pipe, exhaust pipe sealing cover, water storage device exhaust pipe and water storage device water outlet pipe.

[0009] The water storage height in the negative pressure water storage device is higher than the lower edge of the water storage cylinder water outlet, and the pipe opening of the water storage device water outlet pipe is below the lower edge of the water storage cylinder water outlet. According to the siphon effect, Bernoulli equation and air pressure balance principle, when the pipe opening of the water storage device water outlet pipe is immersed below the water storage surface of the water storage cylinder, the negative pressure generated in the negative pressure water storage device and the pressure of the atmosphere outside reach the balance state on both ends of the water outlet of the water storage cylinder, so that the water flow remains static, and the water storage cylinder maintains a fixed water storage depth for a long time.

[0010] Further, the structure of the negative pressure water storage device is various, which can be buried under the floor tile or installed on the wall, washbasin cabinet or other positions. As long as sufficient water storage in the negative pressure water storage device is above the lower edge of the water storage cylinder water outlet, the long -term water replenishing function can be realized. The specific implementation mode of the negative pressure water storage device includes but is not limited to using a standard specification water inlet pipe as a water storage container and connecting to the water outlet of the water storage cylinder through a pipeline.

[0011] In particular, the setting position of the water storage device exhaust pipe is flexible, which can be arranged in the floor drain cover main part or any part of the upper part of the negative pressure water storage device. The exhaust pipe sealing cover is used for exhausting when adding water, so as to ensure the operation convenience. The design of the water storage device exhaust pipe should meet the following conditions: the pipe opening height should be higher than the highest liquid level in the negative pressure water storage device to prevent liquid overflow; meanwhile, the exhaust pipe sealing cover should have good sealing performance to avoid the influence of external air on the pressure balance in the negative pressure water storage device.

[0012] Further, the appearance of the floor drain cover main part and the negative pressure water storage device is not limited, which can be designed according to actual requirements. The material selection is flexible, which can adopt metal materials or chemical synthetic materials to meet the use requirements in different environments. For example, in a humid environment, corrosion-resistant stainless steel materials can be selected, and in a dry environment, high-strength plastic materials can be selected.

[0013] In particular, the depth of the water outlet pipe of the water storage device immersed in the water storage cylinder can be adjusted as needed. The deeper the water outlet pipe is immersed, the less frequently the water needs to be replenished due to evaporation, provided that the water storage depth is met. The specific structure of the water outlet pipe of the water storage device includes but is not limited to a straight pipe, a bent pipe, or a telescopic pipe with an adjusting device to adapt to different installation scenarios and usage needs.

[0014] Further, the negative pressure water storage device can be connected to multiple floor drain cover bodies through pipes, suitable for the quantitative water replenishment needs of multiple floor drains, especially suitable for scenarios such as hotels, offices, and apartments that require intensive installation of floor drains. The specific implementation is to add multiple water outlet interfaces to the bottom or side of the negative pressure water storage device, which are respectively connected to the water outlet of the water storage cylinder of different floor drain cover bodies through pipes, thereby realizing the multi-point water replenishment function.

[0015] In particular, the sealed filter cylinder can be directly pulled out for garbage disposal, which is simple to operate. The top structure and design of the sealed filter cylinder can be designed according to actual needs, such as setting different density filter screens or multi-layer filter structures at the top to improve the filtering effect. In addition, the lower end of the sealed filter cylinder needs to be inserted into the water storage cylinder at least 50 mm deep to ensure that the floor drain cover body is isolated from the outside air and to prevent sewage from flowing back.

[0016] Further, the water storage cylinder can be disassembled and cleaned, and if necessary, the water outlet pipe of the water storage device can be removed and the water outlet of the negative pressure water storage device can be sealed. The length of the water storage cylinder needs to meet the requirement of at least 50 mm of water storage depth, and it is equipped with a water storage cylinder sealing ring to ensure the sealing performance between the water storage cylinder and the floor drain cover body. The height of the water outlet of the water storage cylinder needs to be designed according to the drainage flow to ensure smooth drainage and not to disrupt the pressure balance.

[0017] In particular, when the negative pressure water storage device replenishes water, the following steps need to be followed: S1, pull out the sealed filter cylinder; S2, fit a water pipe with a funnel on the water outlet pipe of the water storage device; S3, remove the air pipe sealing cover; S4, add water to the funnel until water comes out of the air pipe of the water storage device; S5, reinstall the air pipe sealing cover on the air pipe of the water storage device. The above steps ensure the accuracy and reliability of the water replenishment process.

[0018] Further, the working process of the floor drain is as follows: in the initial state, the water storage height in the negative pressure water storage device is higher than the lower edge of the water outlet of the water storage cylinder, and the pipe opening of the water outlet pipe of the water storage device is immersed below the water storage surface of the water storage cylinder. The negative pressure generated in the negative pressure water storage device balances the pressure on both ends of the water outlet of the water storage cylinder with the atmospheric pressure, and the water flow remains static, and the water storage cylinder maintains a fixed water storage depth for a long time. With the passage of time, the water in the water storage cylinder decreases due to evaporation, and when the water storage surface is lower than the pipe opening of the water outlet pipe of the water storage device, the pressure on both ends of the water outlet of the water storage cylinder is unbalanced, and the water in the negative pressure water storage device automatically flows out to replenish water until the water storage surface reseals the pipe opening of the water outlet pipe of the water storage device, and the pressure is balanced, and the replenishment stops.

[0019] In particular, the maintenance and cleaning convenience of the floor drain is embodied in the following aspects: the sealed filter cartridge can be directly pulled out for cleaning garbage, and the operation is simple; the water storage cylinder can be cleaned by disassembly, and if necessary, the water outlet pipe of the water storage device can be first disassembled and the water outlet of the negative pressure water storage device is blocked; when the negative pressure water storage device replenishes water, the above-mentioned steps need to be operated to ensure the convenience of operation.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] By the ingenious combination of the negative pressure water storage device and the water storage cylinder, the siphon effect, Bernoulli equation and air pressure balance principle are utilized to realize the long-acting odor isolation function. The floor drain has simple structure, convenient maintenance and wide application range, and has remarkable social value and market prospect. Further, the long-acting sealing characteristic of the floor drain is embodied in that even in a well-ventilated and high-temperature environment, the water seal effect can be maintained for several months or even several years. By reasonably adjusting the immersion depth of the water outlet pipe of the water storage device, the water replenishment frequency can be significantly reduced, thereby prolonging the service life of the floor drain. In particular, the one-device multi-use characteristic of the floor drain makes it suitable for various scenes, such as the water replenishment demand of the floor drain in the dry-wet separation area. Through the multi-point connection function of the negative pressure water storage device, the synchronous water replenishment of multiple floor drains can be realized, and the use efficiency is significantly improved. In summary, the utility model combines the negative pressure water storage device and the water storage cylinder, utilizes scientific principles and technical means, solves the problem of water seal failure of traditional floor drains, and at the same time, considers the maintenance convenience and the flexibility of appearance design, providing an innovative solution for the sanitary ware field. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural diagram of the negative pressure water storage device of the utility model;

[0023] Figure 2 It is a structural diagram of the sealed filter cartridge and the floor drain cover body of the utility model;

[0024] Figure 3 It is a structural diagram of the water storage and cleaning cylinder of the utility model;

[0025] Figure 4 The utility model discloses a floor drain cover main part and sewage connecting pipe structure schematic diagram.

[0026] The signs are as follows:

[0027] 1, sealed filter cartridge, 101, filter cartridge sealing ring, 102, filter screen, 2, water storage sewage cartridge main part, 201, water storage cartridge sealing ring, 202, water storage cartridge water outlet, 203, water storage cartridge, 3, floor drain cover main part, 301, cover sealing ring, 302, sewage sealing ring, 4, negative pressure water storage device, 401, exhaust pipe sealing cover, 402, water storage device exhaust pipe, 403, water storage device water outlet pipe. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, clear and understandable, the specific embodiments of the utility model will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. When an element is referred to as being "a" or "one", it means there is at least one of the element present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are made only for purposes of illustration, and are not intended to be limiting.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] The utility model will be described in detail below with reference to the embodiments shown in the drawings:

[0032] The specific embodiments of the utility model negative pressure water replenishing long-acting odor isolation floor drain are combined with the accompanying drawings Figure 1 to the accompanying Figure 4Detailed description will be made. The core structure of the floor drain includes a sealed filter cylinder 1, a filter cylinder sealing ring 101, a filter screen 102, a water storage and sewage cylinder main body 2, a floor drain cover main body 3, a negative pressure water storage device 4, a water storage cylinder sealing ring 201, a water storage cylinder water outlet 202, a water storage cylinder 203, a sewage discharge sealing ring 302, a sewage discharge connecting pipe, an exhaust pipe sealing cover 401, a water storage device exhaust pipe 402 and a water storage device water outlet pipe 403. The embodiments of the utility model will be described in detail below in combination with specific parts and reference numerals and the drawings.

[0033] The sealed filter cylinder 1 is located at the uppermost part, and is tightly matched with the upper opening of the floor drain cover main body 3 by sleeving the filter cylinder sealing ring 101, that is, is in closed connection. The filter screen 102 is arranged in the sealed filter cylinder 1, and is used for intercepting larger solid impurities to avoid affecting the drainage performance. The water storage and sewage cylinder main body 2 is installed in the floor drain cover main body 3, and the top of the water storage and sewage cylinder main body 2 is provided with the water storage cylinder sealing ring 201, which is used for forming a sealed connection with the inner wall of the floor drain cover main body 3. The water storage cylinder 203 is located at the lower part of the water storage and sewage cylinder main body 2, and the top of the water storage cylinder 203 is annularly provided with a plurality of water storage cylinder water outlets 202. A sewage discharge connecting pipe is arranged at the bottom of the floor drain cover main body 3, and the water storage cylinder water outlet 202 discharges the stored water to the sewage discharge connecting pipe. The bottom of the floor drain cover main body 3 is formed with the sewage discharge connecting pipe, and the outer side of the sewage discharge connecting pipe is sleeved with the sewage discharge sealing ring 302, which is used for being connected with the sewage discharge pipeline pre-buried in the building. The negative pressure water storage device 4 is located at the middle upper part of the floor drain cover main body 3, and the water level stored in the negative pressure water storage device 4 is higher than the lower edge of the water storage cylinder water outlet 202. The pipe opening of the water storage device water outlet pipe 403 extends below the water storage surface of the water storage cylinder 203, so as to realize the pressure balance and automatic water supplement function. The top of the negative pressure water storage device 4 is provided with the water storage device exhaust pipe 402, and the top port of the water storage device exhaust pipe 402 is covered with the exhaust pipe sealing cover 401, which is used for exhausting air when water is added.

[0034] The depth of the sealed filter cylinder 1 inserted into the water storage cylinder 203 needs to exceed 50 mm, so that the lower end of the sealed filter cylinder 1 is completely immersed in the stored water, thereby isolating the outside air from entering the inside of the floor drain. The filter screen 102 keeps a gap of at least 30 mm from the bottom of the water storage cylinder 203, so that the sewage can flow smoothly into the water storage cylinder 203. The length of the water storage cylinder 203 needs to meet the national standard water storage depth requirement of 50 mm, and a certain height is additionally reserved for the water outlet elbow design. The water storage cylinder sealing ring 201 is located at a position 20 mm lower than the upper opening of the floor drain cover main body 3, so as to leave enough sealing space for the filter cylinder sealing ring 101. The height of the water storage cylinder water outlet 202 is optimized according to the drainage flow requirement, so as to ensure smooth water flow and not to damage the pressure balance.

[0035] The bottom of the floor drain cover main body 3 is provided with a sewage connection pipe, which is designed to match the 50mm pipe reserved for the existing floor drain sewage. The sewage connection pipe is externally sleeved with a sewage sealing ring 302 for forming a sealed connection with the pre-buried sewage pipe of the building. The cover sealing ring 301 is located at the bottom of the floor drain cover main body 3 for enhancing the overall sealing performance. The material of the floor drain cover main body 3 can be selected as metal material or chemical synthetic material according to actual requirements, such as stainless steel or high-strength plastic, to meet the use requirements in different environments.

[0036] The negative pressure water storage device 4 preferably adopts a PVC water inlet pipe with a standard specification as a water storage container, and the volume thereof can be flexibly adjusted according to actual requirements. The water storage device exhaust pipe 402 is located at the top of the negative pressure water storage device 4 for exhaust during water filling. The exhaust pipe sealing cover 401 covers the end of the water storage device exhaust pipe 402 to ensure the sealing performance during water filling. The water storage device water outlet pipe 403 is located at the bottom of the negative pressure water storage device 4, and the pipe opening thereof extends below the water storage surface of the water storage cylinder 203 for realizing the automatic water replenishment function. The opening of the water storage device water outlet pipe 403 is designed to face downward to avoid the backflow of the water storage to the inside of the negative pressure water storage device 4.

[0037] The working principle of the negative pressure water replenishment long-acting odor isolation floor drain is as follows: in the initial state, the water storage height in the negative pressure water storage device 4 is higher than the lower edge of the water outlet 202 of the water storage cylinder, and the opening of the water storage device water outlet pipe 403 is immersed below the water storage surface of the water storage cylinder 203. At this time, the negative pressure generated in the negative pressure water storage device 4 and the atmospheric pressure balance the pressure at both ends of the water outlet 202 of the water storage cylinder, so that the water flow remains static, and the water storage cylinder 203 maintains a fixed water storage depth for a long time. With the passage of time, the water in the water storage cylinder 203 is reduced due to evaporation, and when the water storage surface is lower than the opening of the water storage device water outlet pipe 403, the pressure at both ends of the water outlet 202 of the water storage cylinder loses balance, and the water in the negative pressure water storage device 4 automatically flows out to replenish water. After the replenished water reseals the opening of the water storage device water outlet pipe 403, the pressure returns to balance, and the water replenishment stops. The above process utilizes the siphon effect, Bernoulli equation and air pressure balance principle to realize the automatic water replenishment function, and significantly prolongs the odor isolation effect of the floor drain.

[0038] The floor drain is easy to clean and maintain. When it is necessary to clean the garbage in the sealed filter cylinder 1, the sealed filter cylinder 1 can be directly pulled out, and then reinstalled after the garbage is poured out. If it is necessary to clean the garbage in the water storage cylinder 203, a small spoon can be used to pick up the garbage without disassembling the water storage cylinder main body 2. If it is necessary to thoroughly clean the water storage cylinder 203, the water storage device water outlet pipe 403 needs to be disassembled and the water outlet of the negative pressure water storage device 4 needs to be blocked, and then the water storage cylinder 203 needs to be disassembled and cleaned.

[0039] The water supplement operation of the negative pressure water reservoir 4 comprises the following steps: S1, pulling out the sealed filter cartridge 1; S2, sleeving a water pipe with a funnel on the water outlet pipe 403 of the water reservoir; S3, removing the exhaust pipe sealing cover 401; S4, adding water into the funnel until water spurts out of the exhaust pipe 402 of the water reservoir; and S5, reinstalling the exhaust pipe sealing cover 401 on the exhaust pipe 402 of the water reservoir, and completing the water supplement operation.

[0040] The negative pressure water reservoir 4 has various structural forms, and can be selected in a visible installation mode or a concealed installation mode according to actual requirements.

[0041] The negative pressure water reservoir 4 can be buried under floor tiles and arranged by using the space of a sunken pool in the concealed installation mode.

[0042] The negative pressure water reservoir 4 can be connected to multiple floor drain outer cover bodies 3 through pipelines, and is suitable for scenarios, such as hotels, offices, and apartment buildings, that require intensive installation of floor drains.

[0043] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described above, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description, for those of ordinary skill in the art, without departing from the concept of the present application, can make a number of variations and improvements, these are within the scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A long-lasting odor-proof floor drain with negative pressure water replenishment function, characterized in that: The system includes a sealed filter cylinder, a water-holding and cleaning cylinder body, a floor drain cover body, a negative pressure water storage device, and a water storage device outlet pipe. The water-holding cylinder has a water outlet, and the outlet of the water storage device is located below the lower edge of the water outlet of the water-holding cylinder. The water-holding and cleaning cylinder body is installed inside the floor drain cover body. The negative pressure water storage device is connected to the water-holding cylinder. The water-holding and cleaning cylinder body includes the water-holding cylinder. The water level in the negative pressure water storage device is higher than the lower edge of the water outlet of the water-holding cylinder. The sealed filter cylinder is sealed to the floor drain cover body.

2. The long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 1, characterized in that: The negative pressure water storage device can be buried under floor tiles or installed on walls and washbasin cabinets.

3. A long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 1 or 2, characterized in that: The negative pressure water storage device uses a standard-sized inlet pipe as a water storage container and is connected to the outlet of the water tank through a pipeline.

4. A long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 1, characterized in that: The negative pressure water storage tank is equipped with a water storage tank exhaust pipe at the top, and the height of the exhaust pipe opening is higher than the highest liquid level inside the negative pressure water storage tank.

5. A long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 4, characterized in that: The port of the water storage tank's exhaust pipe is covered with an exhaust pipe sealing cover, which has a sealing function to prevent outside air from entering the negative pressure water storage tank.

6. A long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 1, characterized in that... The main body of the drain cover and the negative pressure water storage device are made of metal or chemical synthetic materials.

7. A long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 1, characterized in that: The depth to which the outlet pipe of the water storage device is immersed in the water tank is adjustable.

8. A long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 7, characterized in that: The water outlet pipe of the water storage device is a straight pipe, a bent pipe, or a telescopic pipe with an adjustment device.

9. A long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 1, characterized in that: The negative pressure water storage device is connected to the main body of multiple floor drain covers through pipes.

10. A long-lasting odor-proof floor drain with negative pressure water replenishment function as described in claim 1, characterized in that: The depth to which the sealed filter cylinder is inserted into the water-filled cylinder is not less than 50 mm; the sealed filter cylinder is equipped with a filter cylinder sealing ring, and the sealed filter cylinder is sealed to the upper opening of the drain cover body through the filter cylinder sealing ring; a filter screen is installed inside the sealed filter cylinder.

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