CN210684937U - Inspection well cover capable of preventing gas and organism from overflowing reversely - Google Patents

Abstract

The inspection well cover capable of preventing gas and organisms from reversely overflowing can ensure quick drainage and prevent gas and organisms from reversely overflowing, and is an innovation for leading the toilet deodorization floor drain to the aspect of the inspection well cover structure. It is proposed to add an anti-overflow control structure on the inspection well cover to automatically control the opening and closing of the drainage channel. The funnel comprises an upper cover plate with a grate and a top column, an upper edge with a spring and a lower funnel, wherein the upper edge of the upper cover plate is fixed on the upper edge of the upper funnel; or the upper cover plate with the grate is additionally provided with a long funnel with a water overflow window, and a ring-shaped valve with a floater is arranged in the long funnel, and the top of the floater can be pushed into a water drain hole of the long funnel; the single-funnel-shaped floating valve can also be formed by connecting an upper cover plate with a grate with a single funnel and internally arranging a single-body floating valve which can be pushed into a hole of the single funnel. The structure is simple, the manufacture is convenient, the device is economical and applicable, and the device can be widely used for inspection well covers of urban pipe network inspection wells and can also be made into floor drains of toilets.

Description

Inspection well cover capable of preventing gas and organism from overflowing reversely

The technical field is as follows: sanitary ware and public facilities.

Background art:

in 2019, 1 month and 22 days, the sewer pipe of the hand washing pool in the toilet is blocked, and then, the sewer pipe and the floor drain are inspected and repaired. Through retrieval, the existing better four-prevention floor drain has the anti-overflow functions of preventing blockage, odor, large-flow accumulated water, overtime drying and the like. The measures adopted for realizing the four-prevention function are mainly the water sealing principle. Of course, water sealing is the most scientific anti-overflow protection means in the current recognized fluid lines such as toilets and the like which need pipeline isolation.

In order to realize the overtime drying prevention, the latest four-prevention floor drain requires that the water seal reaches more than 50mm, otherwise, the function of the floor drain is considered to be really done or not, and the floor drain is really deodorant. 50mm, which is not difficult to achieve originally, the sewer pipe of the hose used by people can be easily folded into a return water elbow seal of 50mm, the deodorant floor drain water seal sold in the market can reach 50mm and is also easy to buy, and the sewer pipe of 110mm is available. However, there is a problem as to how long the 50mm can the tube? There is a wide difference in the amount of evaporation in various environments. For example, in the north, the heating pipe is arranged beside the floor drain in winter, and the toilet is dry. If some people do not stay home for ten and a half months or have a plurality of toilets in luxury, a certain toilet is not always used any time in any day, the water seal of the floor drain is likely to be dried up early, and the luxury toilet can be baked with odor. Some hotels are also distinguished from weak seasons and busy seasons, the floor drain water seal is not cleaned for a long time in the weak seasons, and the problem of dryness of the floor drain water seal is easy to occur. Some floor drains are preventive in toilets and some industrial and mining enterprises in public places, effective runoff hardly flows into the floor drain at ordinary times, and the water seal type floor drain loses the deodorization function. Therefore, it is necessary to design a four-prevention floor drain based on the non-water sealing principle. Therefore, some people who think seriously recently have proposed the non-water-sealing four-prevention floor drain for the toilet and some people also call the innovation of the floor drain for six-prevention. The methods used by the devices are open-close type, and the modern technologies are mainly used, such as the method of opening and closing the pipeline obtained by magnetic suspension with repulsive magnetic poles, the method of opening and closing the pipeline obtained by mutual attraction of magnetic poles, the method of opening and closing obtained by deformation of polymer molding and the like. These technological advances have improved the environment in people's toilets. Of course, perhaps after some practical examination, water seals are still the most scientifically most useful in less dry locations.

In a wide range, the city is a floor drain-a sewer inspection well for self sanitation and beauty. Some inspection wells are connected with septic tanks, and some people cover the inspection wells with rubber blocks or hard boards after being baked all the year round. The composition of the sewage flowing in urban sewers is far more complex than that in domestic toilets, because there is a summary of the sewers in all homes, factories, mines, businesses, hospitals, schools! Various germs, volatile organic compounds and parasites are in the sewer beside us, and people cannot gunn like urban foul rivers in a republic of people just because an eye-catching large iron cover covers the house. Actually, the odor and various harmful gases, bacteria and parasites which run out from a plurality of big iron caps are not worse than those of a big odor river. In many cities full of fresh flowers, a manhole cover is arranged beside a plurality of fresh flowers with various flowery smells, and odor and various tastes are emitted from the manhole cover. In summer, I walk on the manhole cover beside the road many times and are often smoked to be nausea by the smell flushed out. Today is twenty-six winters of dog years, people hear the firecrackers in the morning, and the phenomenon that children ignite the firecrackers and throw the firecrackers into a sewer inspection well to cause methane explosion and be exploded and damaged when the children are in the coming years is recalled. In order to quickly drain a large amount of rainwater in summer, a plurality of inspection wells are designed in our cities. In order to prevent various parasites such as mosquitoes and the like in a sewer from flying out of the inspection well cover, a health department in Tianjin city requires spraying the mosquitoes into the inspection well cover in summer, and the mosquitoes are sprayed once every few days. However, other harmful substances, such as various gases, which are sprayed from the manhole cover are not cleared. Therefore, it is very necessary to design an inspection well cover which can drain water quickly and prevent the contents in the sewer from overflowing.

Obviously, the existing water-sealed four-prevention floor drain principle is not practical to be used for manufacturing the water-sealed four-prevention inspection well cover, because the water needs to be supplemented by runoff regularly. The inspection well cover for improving urban rainwater drainage by using the innovations in the aspect of toilet four-prevention floor drain, such as the magnetic force mode, the deformation of the high polymer material forming pipeline and the like, is not suitable. In order to solve the problem that toxic or unpleasant gas and harmful organisms in the urban sewer pipe network reversely overflow from the manhole cover, in the last few days of dog-year wintery, people think and think again, think again and think again, think some manhole cover improved structures for preventing gas and organisms from reversely overflowing.

The invention content is as follows: the invention provides improved inspection well cover structures which can ensure rapid drainage and prevent gas and organisms from reversely overflowing. The automatic opening and closing device is characterized in that an anti-overflow structure is additionally arranged to control the opening and closing of the drainage channel, and the automatic opening and closing device is automatically realized based on the interaction of the gravity principle of flow difference, elastic force and buoyancy. The funnel comprises an upper cover plate with a grate and a top column, an upper edge with a spring and a lower funnel, wherein the upper edge of the upper cover plate is fixed on the upper edge of the upper funnel; or the upper cover plate with the grate is additionally provided with a long funnel with a water overflow window, and a ring-shaped valve with a floater is arranged in the long funnel, and the top of the floater can be pushed into a water drain hole of the long funnel; the upper cover plate with the grate can be connected with the single hopper, and the single-body float valve is arranged in the single hopper; it can also be composed of an upper cover plate with an elastic steel sheet and an upper edge connecting disc valve with a hinge. The invention has simple structure, convenient manufacture, economy and applicability, can be widely used as the inspection well cover of the urban pipe network inspection well, and can also be made into the floor drain of a toilet.

Description of the drawings: figure 1 is a schematic view of a spring return type structure of the present invention,

figure 2 is a schematic view of the buoyancy return type structure of the present invention,

figure 3 is a schematic view of a ring valve with a conical float incorporated in figure 2,

figure 4 is a schematic view of a buoyancy return type structure of the present invention with only a single float valve,

fig. 5 is a schematic diagram of a comparative structure of an elastic reset structure according to the present invention.

Parts in the figure:

in fig. 1, 1 denotes an upper cover plate, 1-1 denotes an area where the upper cover plate can be perforated for water passage, 1-2 denotes a water passage hole of the upper cover plate, 1-3 denotes a screw for mounting a jack post, 1-4 denotes a jack post, 2 denotes an optional rubber packing, 3 denotes a sewer, 4 denotes an upper edge with a spring, 4-1 denotes a spring, 4-2 denotes an upper edge mounting table, 5 denotes a lower funnel, 5-1 denotes a pull rope for connecting the lower funnel with the spring, 5-2 denotes a ring for tying the pull rope of the lower funnel, and 5-3 denotes a drain hole of the lower funnel.

In fig. 2, 1 represents an upper cover plate, 1-1 represents an upper cover plate capable of punching a water passing area, 1-2 represents a water passing hole of the upper cover plate, 6 represents a long funnel, 6-1 represents an overflow window of the long funnel, and 6-2 represents a water discharging hole of the long funnel.

In FIG. 3, 7 denotes a conical float, 7-1 denotes an apex of the conical float, 8 denotes a ring valve, and 8-1 denotes a bolt for connecting the ring valve to the conical float.

In fig. 4, 1 denotes an upper cover plate, 1-1 denotes an area where the upper cover plate can perforate a water passing area, 1-2 denotes a water passing hole of the upper cover plate, 3 denotes a sewer, 9 denotes a single funnel, 9-1 denotes a drain hole of the single funnel, and 10 denotes a single float valve.

In fig. 5, 1 denotes an upper cover plate, 1-1 denotes a water passing area where the upper cover plate can be perforated, 1-2 denotes a water passing hole of the upper cover plate, 1-4 denotes an elastic steel sheet mounting bolt, 3 denotes a sewer, 4 denotes an upper edge, 11 denotes an elastic steel sheet, 12 denotes a pulling rope connected to the elastic steel sheet, 13 denotes a pulling rope connected to a manhole cover, 14 denotes a disc valve, and 15 denotes a hinge.

The specific implementation mode is as follows:

are extremely simple. Fig. 1 shows an upper cover plate 1, which is a real manhole cover. The design of such a cover plate is required for manufacturing a floor drain in a household toilet. It must have some strength, i.e. not be too thin, to prevent deformation. The perforation should be made in the middle of the cover plate, i.e. in the area indicated by 1-1 in the figure. 2 the rubber seal ring is an optional part, and the seal ring can be additionally arranged on the rough well cover, so that the well cover is smooth and is unnecessary to be arranged. 3 denotes a sewer, and some sewers are in a bell mouth shape, which has no relation, and as long as 1 and 3 can be closed, no problem exists. The upper edge 4, which is a metal ring, has a lower edge with a diameter slightly larger than that of the lower funnel, and the lower funnel can slide up and down along the inner wall of the upper edge, and the upper edge has a small inclination angle and the lower edge is slightly larger than the upper edge. It should not be too wide, typically one-fourth its diameter. The spring can be directly sleeved on the mounting table. In some places with more impurities in drainage, the upper edge can be made into an inverted V shape, and the residual attachments on the edge of the lower funnel can be cleaned by utilizing mutual friction of the edges. And 5 denotes a core lower funnel. Its diameter is typically 0.7 times the internal diameter of the sewer. Its depth may generally be equal to its diameter. The funnel-shaped inclination below the sand-filled sand. And 5-3, the diameter of the funnel hole refers to the size of the upper cover plate hole and is slightly larger than the water passing hole. The outer diameter of the top column 1-4 is exactly the same as the funnel hole, the front part of the top column can be sharp, and the length of the top column is ensured to be inserted into the funnel hole, namely, when the lower funnel and the upper edge or the upper cover plate are pulled back by the spring, the top column is inserted into the funnel hole slightly and is about 5mm generally.

The working principle is as follows: the lower funnel is connected to the spring by the pull rope in a dry state that no water needs to be discharged, the length of the pull rope is adjusted to enable the lower funnel to be tightly closed with the upper edge or to omit the upper edge to be tightly closed with the upper cover plate, odor or parasites in the sewer cannot enter the funnel from a gap matched with the odor or the parasites and then run out from a water passing hole of the upper cover plate, and the odor or the parasites cannot enter the funnel from the funnel hole and then run out from the water passing hole because the top pillar is just plugged in the hole of the lower funnel. Therefore, in the dry state the structure is odor-resistant and also parasite-resistant. Even if the inspection well cover is dried for three years and five loads, the anti-overflow structure of the inspection well cover for preventing gas and organisms from overflowing is always in a closed state, and harmful gases such as odor and the like and organisms such as sewer parasites and the like are prevented.

When a small amount of water is discharged, the water enters the lower funnel from the water passing hole of the upper cover plate, the weight of the lower funnel is increased due to the addition of the water, the lower funnel is required to drop due to the connection of the spring, at the moment, the top column is separated from the funnel hole, and the water enters the sewer from the funnel hole. When a large amount of water is discharged, if sundries exist in the water, the grate function of the upper cover plate can block part, and only small water which can pass through the water passing holes enters the lower hopper. Because the water flow is large, the water discharge holes of the lower funnel can not discharge water in time, the lower funnel is filled and becomes very heavy, the lower funnel can be separated from the upper cover plate or the upper edge due to the stress of the spring, and the gap of the lower funnel is in direct proportion to the water flow. Then a large amount of water overflows to a sewer from the upper edge of the lower funnel, so that rapid drainage is realized, and water accumulation is prevented. When the drainage is close to the tail sound, the water flow is reduced, the lower funnel becomes light due to less water, the lower funnel slowly shrinks upwards and is slowly closed with the upper edge or the upper cover plate, the water is mainly drained from the drainage hole of the lower funnel, and the top column is slowly inserted into the hole of the lower funnel when the water in the lower funnel is less until the lower funnel returns to the water-free state.

The spring in this configuration is selected so that the lower funnel will have an elastic deformation of typically 50% when filled with water. The spring can also be replaced by a piece of elastic steel or bamboo, so that our ancestors can practice the invention more than 2000 years ago. The spring can be vertically installed, but the spring is not always contacted with water as much as possible, and although the existing stainless steel spring is not water-proof, the spring is affected by impurities in water. It is appreciated that i also thought out another structure without a spring, a buoyancy restoring structure that could be implemented by archimedes more than 2000 years ago.

The upper cover plate shown in fig. 2 and 1 is directly screwed to the long funnel 6, but the ring valve with the conical float shown in fig. 3 is fitted before the installation. It is sufficient to insert the tip of the cone 7-1 directly against the hole of the cone 6-2. The long funnel 6 is screwed with the upper cover plate 1 by adopting a 4-2 additional mounting table at the upper edge of the figure 1. As for the manufacturing material, the stainless steel is widely applied at present, the additional electroplating of the copper material is traditional, the requirement of urban sewers is not high, and people can see tinplate.

The working principle is as follows: the distance between 7-1 and 8 is designed to be exactly equal to the distance between 6-2 and 6-1, so that the ring valve indicated by 8 seals the overflow window of 6-1 when the tip of the conical float is pushed into the hole of 6-2. The diameter of the ring valve is equal to the inner diameter of the long funnel 6. The conical float 7 should be hollow, for example made of stainless steel. Of course, the float and the ring valve can be in other shapes. The size of the 6-2 hole and the width of the ring-shaped valve are reasonably adjusted, so that the 6-1 is opened when the drainage flow reaches a certain value. The taper of the conical float should be greater than the taper of the long funnel, at least by a different amount. Under the condition of small drainage flow, water is mainly drained from a hole below the 6-2 long funnel, the drainage flow is large, and the ring-shaped valve is lifted up by the buoyancy of the water to the conical floater and can be completely opened. The drainage is completed, the conical float is reset, and both 6-2 and 6-1 are closed again. Completely meets the requirements of anti-blocking, deodorization, water accumulation prevention, over-time drying prevention, parasite prevention and the like, and has no problem even for years.

Of course, in this principle, it would seem that there would be no 6-1 spill window and no annular valve, and that the above-described function could be accomplished by using only 6-2 drainage, but simply making the 6-2 hole larger, as shown in FIG. 4, for example. In fig. 4, only a single funnel 9 with a drain hole 9-1 and a single float valve are constructed, perhaps this is the most simplified configuration. It is sufficient if the weight and volume of the bullet-shaped conical float, i.e. the single float valve 9, are set to a certain ratio, for example to a density value of less than 1, for example 0.7-0.8. Perhaps the rate of drainage is relatively slow for this simplest configuration and perhaps not as slow as is reasonably possible, such as a drain hole 9-1 of a suitable size. In particular, which structure is the best, can be concluded after extensive testing.

Also, embodiments of the invention are all circular funnel-shaped, and wedge-shaped are certainly possible based on the same principle, as well as spherical, triangular pyramid-shaped, quadrangular pyramid-shaped, etc. Because many manhole covers are also square, the connection of the square manhole covers is of course in a quadrangular pyramid shape. The float of the invention can be of a similar shape which can be matched with the shapes, namely, the top of the float is just pushed into the drain hole of the funnel, so that the gas and the organism can be prevented from reversely overflowing. Only to pay attention to the fact that the taper of the float and the taper of the funnel have a certain difference, otherwise, how the water reaches the top of the float and floats from the bottom to the top of the float. The design requirements are satisfied, and the economy is good. The above structures can be made into small size to be installed in the floor drain of the toilet.

At present, the floor drain of a toilet is wide in a water seal mode, and the water seal is still a recommended structure even in places with high requirements. The above mentioned opening and closing structure is proposed because the inventor thinks that although some use requirements of the inspection well cover and the toilet floor drain are similar, the use environment still has many differences, and the water seal can not meet the requirements, which has been fully explained in the background art. From the structural principle, the structures provided by the invention are manufactured into the toilet floor drain, so that the requirements of places with water seal over-time drying resistance performance unavailable to the floor drain can be met. Of course, other structures which are successful in the toilet floor drain at present can also be tried to be applied to the design of the inspection well cover. Furthermore, there is a simpler construction than proposed by the present invention.

For example, a valve consisting of a hinge, an elastic steel sheet and a pull rope is additionally arranged below the inspection well cover. As shown in figure 5, a ring-shaped upper edge 4 is arranged below an original inspection well cover serving as an upper cover plate 1, a hinge 15 is additionally arranged, a disc-shaped valve 14 is arranged, the original disc-shaped valve is connected with an elastic steel sheet 11 arranged on the upper cover plate by a pull rope 12, and the valve is connected with the upper cover plate by a pull rope 13 in order to limit the maximum displacement of the valve. When water needs to be drained, the valve is opened downwards to drain water due to gravity generated by the weight of the water, and the elastic steel sheet resets the valve after the water is drained. The structure is relatively simpler, the working principle is reasonable without the funnel shape provided by the three structures, but the environmental adaptability is relatively poor, for example, a valve hinge is easy to break down, something is twisted and the valve is not good, or something is stuck on the valve edge, the valve is invalid, and odor and insects can pass through. Therefore, the application of the hinge structure to such a large-sized valve connection is not suitable. Therefore, without extensive application practice, the funnel-shaped structure provided by the invention is a preferable structure deduced by the inventor from different use environments of the toilet floor drain and the urban sewer pipe network inspection well cover through various considerations, particularly the structure shown in fig. 1, and the reliability of the funnel-shaped structure is relatively high.

For many years i have been concerned with toilets and have always felt where improvements seem to be needed. In 2016, a portable toilet which is felt by the family of the automobile, a door-opening type male toilet stool and a bionic toilet bowl are proposed. The floor drain is carefully researched in the first few days, is popularized to an inspection well cover of an urban sewer pipe network, and takes the first step in the design aspect of preventing gas and organism from overflowing from the inspection well cover. Since the inventor is not in the profession and closes the door to build the car, some simple improved structures are provided, the carelessness is inevitable, and the more excellent technical scheme can not be thought in a short time, and the inventor is in the possession of throwing the brick and leading the jade to be referred to by each expert.

Claims (3)

1. The inspection well cover capable of preventing gas and biological reverse overflow is an innovation for leading a toilet deodorization floor drain to the aspect of the inspection well cover structure, and is characterized in that: the inspection well cover is additionally provided with a control structure for controlling the opening and closing of the drainage channel and preventing gas and biological reverse overflow, the reverse overflow control structure is a control mechanism for automatically controlling the opening and closing of the drainage channel based on the interaction of gravity of flow difference, elastic force and buoyancy, and consists of an upper cover plate with a grate and a top column, an upper edge with a spring and a lower funnel, the upper edge of the upper cover plate is fixed on the upper cover plate, the lower funnel is connected with the spring on the upper edge through a pull rope, and the top column can be pushed into a drainage hole of the lower funnel; or the upper cover plate with the grate is additionally provided with a long funnel with a water overflow window, and a ring-shaped valve with a floater is arranged in the long funnel, and the top of the floater can be pushed into a water drain hole below the long funnel; or the upper cover plate with the grate is connected with the single funnel, and the single float valve is arranged in the single funnel, and the tip of the float valve can be pushed into a drain hole below the single funnel; the valve can also be formed by an upper cover plate additionally provided with an elastic steel sheet and a simple circular flap valve connected with the upper edge provided with a hinge.

2. The inspection well cover for preventing gas and biological reverse overflow of claim 1, wherein the reverse overflow control structure comprises a circular funnel, a wedge-shaped funnel, a conical funnel, a spherical funnel, a circular floater, a spherical floater, a conical floater and a wedge-shaped floater.

3. The inspection well cover for preventing gas and biological reverse overflow as claimed in claim 1, wherein the reverse overflow structure is installed in a small-sized structure in a toilet floor drain, the reverse overflow control structure is a control mechanism for controlling the opening and closing of a drainage channel, and comprises an upper cover plate with a grate and a top column, an upper edge with a spring and a lower funnel, the upper edge of the upper cover plate is fixed on the upper cover plate, the lower funnel is connected with the spring on the upper edge through a pull rope, and the top column can be pushed into a drainage hole of the lower funnel; or the upper cover plate with the grate is additionally provided with a long funnel with a water overflow window, and a ring-shaped valve with a floater is arranged in the long funnel, and the top of the floater can be pushed into a water drain hole below the long funnel; or the upper cover plate with the grate is connected with the single funnel, and the single float valve is arranged in the single funnel, and the tip of the float valve can be pushed into a drain hole below the single funnel.

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