KR100875473B1 - Roof drain device for protection against the reek of sewage and backwater - Google Patents

Abstract

A bottom drainage device for preventing the backflow of sewage and offensive odor is provided to discharge various kinds of sewage smoothly and to prevent the adhesion and deposition of impurities or sewage to a drainageway or an opening and shutting device. A bottom drainage device for preventing the backflow of sewage and offensive odor comprises a drain closure(110) assembled to a fixture of a drainage device of a bottom drain in the attachable/detachable type, a support shaft(160) coupled with a fixing boss of the drain closure, an opening and shutting valve reciprocating pipe(198) contacted to the support shaft in the sliding structure and provided with a reciprocating pipe rack at the outside, a reciprocating pipe sealing device joining the top of the opening and shutting valve reciprocating pipe to the outside of the support shaft in the watertight structure, a hemispheric upper opening and shutting valve(191) joined to the inner end of a ring-shaped packing member in the drain closure partially in the watertight state, an opening and shutting closure(190) having lower opening and shutting valves, a pinion fixing pipe(170) inserted to the outside of the opening and shutting valve reciprocating pipe concentrically, and right and left pinions(175) engaged with reciprocating pipe racks(181).

Description

Floor drain for preventing odors and backflows {roof drain device for protection against the reek of sewage and backwater}

The present invention relates to a drainage device for preventing sewage odors and backflow, and more particularly, it is installed in floor drains and grounds of houses, buildings, and industrial facilities for draining water or liquids, and in drainage or catchment wells on roads and sewers. The present invention relates to a floor drainage device capable of preventing the inflow of harmful gases and odors and preventing sewage backflow, while smoothly draining sewage, rainwater, and wastewater into drains or sewers.

The inner wall of the drain pipe for draining various sewage is decomposed and decomposed due to debris or fats and oils generated odorous sewage gas, and many pests are breeding.

When the sewage gas and pests are introduced into the room through the drain, it is very unsanitary and seriously impairs the living environment, so most drains or drain pipes are provided with a trap as a means for preventing this.

The configuration of the drain trap is a configuration in which a water sealing mechanism is installed in the middle of the drain pipe to block the flow of air, and the types thereof include a pipe trap, a drum trap, and a bell. Bell traps, assembly traps, instrument traps and trap pits.

The configuration commonly applied to indoor and outdoor floor drains in the type of drain trap is a bell trap and an example configuration thereof is a bell trap type floor drain.

The bell trap type bottom drainage device has a cup cross-section type that is provided with a flowable or fixed bell at the bottom of a plate-shaped sieve installed on the same plane as the drainage bottom, and connected at a predetermined distance to the inner circumferential surface of the bottom of the bell. The trap ring, and water is accumulated in the trap ring when draining the floor, and the bottom circumference of the bell is immersed to a certain depth in the accumulated water to form a seal, thereby blocking air flow between the drain pipe and the room. to be.

The bell trap type floor drainage device having the above-described configuration is simpler in structure and smaller in volume than other types of traps, and can be applied to a place where the height of the floor of the construction site is low due to its low installation height. It is inexpensive and is used as floor drainage for indoor and outdoor use.

However, the configuration of the bell trap type floor drainage device has a disadvantage in that, when the water height of the seal portion is low or the volume is small, sewage gas and pests generated in the drain pipe are introduced into the room through the water.

In addition, when used for a long time, there is a disadvantage in that the sediment is accumulated in the bell and trap ring forming the seal, and the drainage function is reduced, and the trap function such as odor is generated by itself is lost. Formed to have a disadvantage that does not smoothly drain the bulky foreign matter, there is no sewage backflow prevention function.

As a prior invention related to the floor drainage device provided to solve the above bell trap type floor drainage problems, "Odor blocking and sewage backflow prevention device" of Korean Utility Model Registration No. 244694 (hereinafter referred to as the first invention), And "Drainage device" (hereinafter referred to as Invention 2) of Korean Utility Model Registration No. 284851, and "Drainage device to maintain confidentiality" (hereinafter referred to as Invention 3) of Domestic Patent No. 643345.

A common structural feature of the above-described bottom drainage device is a configuration in which opening and closing means corresponding to the sewage discharge pressure are excluded and a sealing bell trap is excluded as a blocking means between the drain and the drain pipe.

The opening and closing means when the sewage discarded from the drainage bottom is received into the upper part of the drainage device, the opening and closing valve is automatically lowered by the discharge pressure while opening the drainage channel and draining the drainage pipe. Automatic drainage switchgear.

Compared with the conventional water-sealed bell traps, the drainage devices of the invention having the automatic drainage opening and closing device as described above are normally closed between the opening and closing drain and the drain pipe so that the sewage and the pests are completely introduced into the room. It was also provided to fundamentally solve the disadvantages of sedimentation in the seal and deterioration of the drainage function and the occurrence of odor by itself.

In addition, in the drainage state, the drainage path in the drainage device was formed almost vertically, and the drainage passage cross-sectional area was also widened to smoothly drain the bulky foreign matter, and in particular, it was provided to provide a function to prevent backflow from the drainage pipe.

However, the drainage devices of the first and second inventions 1 and 2 are formed of complicated operating members in which the automatic drainage opening and closing device is mechanically coupled with various components, making the parts difficult and increasing the number of assembly labors, resulting in low productivity, high sliding contacts, and Its wide frictional force acts as a resistance element in the lifting operation, and the drainage pipe is narrowly formed, making it difficult to apply to small size, and the discharge sewage flows into the inside of the switchgear and accumulates, causing frequent defects in operation, and preventing sewage backflow. The desired effects, such as not sufficiently secured, could not be realized practically, and each of the prior inventions was an impractical invention in which many problems in manufacturing, construction, and economics were predicted.

Particularly, since the valve seat, which is a drainage opening and closing means, is composed of rubber-shaped plate packing and is lifted and operated only by the tension of the tension spring, the configuration of the first invention 3 includes a drainage port and a valve seat when a small amount of discharged sewage is discharged. It is configured to discharge only sewage while having a small gap on one side and partially open, so that when the sewage is mixed with foreign matter, hair, and sand, it cannot be discharged smoothly, and they are stuck in the opening and closing contact, and airtightness is lost. Defects occur,

In addition, long-term use causes the tension spring to loosen due to weakened elastic force, thus losing the function of opening / closing the valve seat in a watertight state to the drain port, and thus preventing fatal odor prevention and backflow prevention functions. There was a problem.

The present invention is designed to solve the problems of the above-described conventional floor drainage, one object is to provide a drainage passage with a wide cross-sectional area while having an automatic drainage opening and closing means for blocking sewage gas inlet to smoothly discharge various kinds of sewage The present invention provides a floor drainage system for preventing sewage odors and backflow.

Another object of the present invention is to prevent the attachment and deposition of foreign matter or dirt to the drainage or opening means as much as possible, sewage odor to ensure the function of the opening and closing means of the drainage and the function of blocking the inflow of sewage gas and preventing the reverse flow of sewage even during long-term use And a floor drain for preventing backflow.

It is still another object of the present invention to provide a sewer odor and backflow prevention floor drainage system capable of completely preventing not only sewage gas but also pests and insects from infiltrating from the sewers.

Still another object of the present invention is to provide a floor drainage device for preventing sewage odor and backflow, which can be universally applied to various sizes of household tables and small floor drain pipes, as well as industrial applications.

Sewage odor and backflow prevention floor drainage device of the present invention for achieving the above object; A cylindrical housing body detachably fixed to the inside of the drainage fixture of the bottom drain hole communicating with the drain pipe, and a drainage seat fixing ring protruding toward the center of the housing body to form a housing opening. And a drainage housing including a ring-shaped seat body seated in the drain hole seat fixing ring and a ring-shaped packing member of the drain hole extending from the seat body and protruding below the drain hole seat fixing ring through the housing opening. The drainage sheet is provided, and is formed to extend downwardly from the drainage container fixing flange and the drainage container fixing flange which is seated on the upper end of the drainage housing is in close contact with the seat body and the drainage drain opening is formed at the bottom A drain container including a body is provided, and the drain container high A support shaft including a fixing ring seated on a flange, a plurality of supports extending in a center direction inside the fixing ring, and a support shaft high information connected to the plurality of supports and positioned at the center of the fixing ring and having a fixing screw hole formed therein. A drain box having a fixing stand;

A straight support shaft screwed to the lower end of the support shaft high information and fixedly supported downward;

The inner groove is formed to be extrapolated to the support shaft to be slidable up and down, and the opening and closing the elevating pipe is formed on the outer surface in the left and right symmetric position along the longitudinal direction, and bent outward from the upper end of the opening and closing elevating pipe A packing support tube extending upwardly to form an accommodation space between the support shaft and an outer surface of the support shaft, and surrounding the outer surface of the support shaft to prevent the inflow of sewage into the opening / closing lift tube; Lifting pipe watertight means installed in the receiving space formed between the inner surface of the support pipe, and formed integrally with the upper end of the packing support pipe so that the middle portion is in watertight contact with the inner end of the ring-shaped packing member of the drain hole Hemispherical upper open side and hemispherical lower open side screwed into the watertight structure at the lower end of the upper open side And the housing is opened and closed;

A bottom plate is fixedly assembled at the lower end of the support shaft, and pinion fixing tubes are extrapolated concentrically at intervals from the outer surface of the support shaft to the outside of the opening / closing elevating pipe, and penetrated in the axial direction from the side members of the pinion fixing tubes. Rotating freely and protruding inwardly with a predetermined width protruding from the member, the gears protruding inwardly are left and right pinions engaged with the elevating pipe racks, and extrapolated in concentric circles at intervals on the outer surface of the pinion fixing tube. Left and right actuating pipe racks are meshed with the outer gear of the field, and the weight of the pipe is integrally attached to the outer surface to move downward after discharge of the sewage flowing into the drain box, and to move the opening and closing enclosure upwards, thereby Around the inner end of the ring-shaped packing member of the drain Elevating drive device comprising a lifting tube to operate in close contact; Characterized in that formed.

In the above configuration of the present invention, the elevating pipe watertight means may include one retainer-type packing member or a plurality of retainer-type packing members stacked up and down.

In the configuration of the present invention, the upper and lower sides of the opening and closing valve is preferably made of a synthetic resin injection molding in consideration of the moldability of the relevant configuration, such as opening and closing valve elevating pipe and operating tube rack and assembly screw, in order to increase the surface strength It may be configured to further include a cover member of the stainless steel plate on the surface.

In the opening / closing structure of the present invention, the internal air can be circulated in response to the change of the internal volume in the opening / closing stroke of the opening / closing enclosure, while preventing the inflow of backflow sewage and blocking the inflow of sewage or condensate into the lower opening / closing valve. It may be configured to further include an air valve to prevent the increase of the weight of the opening and closing enclosure during use by natural draining it when the go.

The present invention as described above is in communication with the drain pipe and fixed to the inside of the drainage fixture of the bottom drain hole having a strainer on the top is installed as an assembly means has the following effects.

The floor drainage device for preventing sewage odor and backflow of the present invention is installed in the drainage fixture of the bottom drainage, and when the sewage is not discharged, the opening and closing enclosure is raised to the maximum rising position to shut off the drainage of the drainage enclosure in a watertight state. Drainage is maintained.

The elevating operation pipe installed on the outer surface of the pinion fixing tube inside the opening and closing box is formed by the weight of the weight fixedly attached to the outer circumferential surface with the upper ends of the left and right operating tube racks provided on the inner wall engaged with the left and right pinions of the pinion fixing tube. It is supported with descending thrust to raise and close the enclosure.

Therefore, the left and right pinions of the pinion fixing tube act as the lifting thrust to raise the left and right lifting tube racks whose lower ends are engaged with the inner gears of the left and right pinions in response to the lowering thrust of the lifting operation tube. Accordingly, the opening / closing lift tube which is integral with the left and right lifting tube racks and is in contact with the outer surface of the support shaft with a fine clearance is supported by being raised to the maximum lift position.

When the opening / closing side lifting tube is supported at the support shaft at the maximum ascending position by the above-described series of gear trains, the entire opening / closing body assembled with the structure as the unit with the opening and closing side ascent tube is also supported at the maximum raising position.

When the opening and closing enclosure is supported in the maximum raised position, the upper open and close sides of the upper outer body are supported in the maximum raised position, and the inner spherical surface of the drain ring-shaped packing member provided in the middle of the spherical outer circumferential surface of the upper open / close edge is provided at the inner bottom center of the drain box of the drainage enclosure. Watertight contact is to operate in the state of blocking the drainage.

As described above, in the waterway blocking state in which the opening and closing enclosure blocks the drain hole of the drainage enclosure in a watertight state, when the discharge sewage is introduced into the drainage enclosure, the opening and closing enclosure is operated in the drainage opening state.

When the sewage is discarded to the drainage bottom, the sewage is introduced into the drain through the strainer and acts as a constant sewage discharge pressure doubled by the drop pressure to the sewage weight with respect to the top surface of the upper opening / closing edge.

When the sewage discharge pressure acts on the upper surface of the upper opening and closing side, the opening and closing enclosure is lowered, and the upper and lower sides of the upper opening and closing side which are in watertight contact with the ring-shaped packing member are lowered and open the drainage drain port so that the sewage is discharged into the drain pipe.

As described above, in the sewage discharged state where the sewage dumped into the drainage bottom is introduced into the sump and the sewage discharge pressure is continuously acted on the upper side opening / closing valve, the opening and closing enclosure is controlled in an upstroke by an elevating drive device installed therein. do.

The lifting stroke of the elevating drive device of the open / close enclosure is performed in proportion to the sewage discharge pressure acting on the upper end surface of the upper open / close side, which is the upper member of the open / close enclosure.

When the sewage discharge pressure acts on the upper end face of the upper opening / closing edge, the upper opening / closing valve is lowered while the opening / closing lift tube provided as an integral structure at the inner center thereof descends on the outer surface of the support shaft.

When the opening / closing down pipe is lowered, the left and right lifting tube racks vertically provided on the left and right sides of the outer surface are also lowered, so that the left and right pinions of the pinion fixing tube engaged with the left and right lifting tube racks are rotated inward.

When the left and right pinions rotate inwardly, the left and right actuating pipe racks engaged with the protruding gear teeth of the left and right pinions are raised on the outer side of the pinion fixing tube, thereby raising and lowering the operation of the elevating operator tube to the upper part of the pinion fixing tube. .

The elevating stroke of the elevating operation pipe is based on the pressure value at which the sewage discharge pressure lowers the upper opening / closing edge to the maximum descending position. When the low pressure of is applied, it is controlled by the stroke which moves the lifting position of the elevating operation pipe up and down in proportion to the high and low degree of low pressure.

 The elevating stroke of the elevating operation pipe finally controls the elevating position of the upper opening / closing valve, and the opening area of the sewage drainage formed between the ring-shaped packing member and the upper opening / closing upper end face at the lower side of the sump drainage is proportional to the sewage discharge. Function to adjust by

When the sewage discharge is completed in the sewage discharge state as described above, the opening and closing enclosure is reduced to the drainage block state by the internal lift drive device is operated in the downstroke.

When the sewage discharge to the drain box is gradually reduced in the above-described sewage discharge state, the sewage discharge pressure acting on the upper opening and closing sides is also gradually lowered below the reference pressure, so that it is controlled in an upward stroke in proportion to the sewage discharge pressure. The elevating operation pipe is also operated and controlled by the downward stroke gradually descending by the downward thrust force of the weight at the maximum ascending position.

Subsequently, when the sewage discharge into the drain box is stopped and the sewage discharge is completed, the sewage discharge pressure acting on the upper opening and closing valve is completely disappeared. It is completely lowered to the initial state in time.

As described above, when the elevating operation pipe is completely lowered to the initial position by the lowering stroke, as described above, the upper opening / closing edge is controlled to be raised to the maximum rising position, and the ring-shaped packing member is pressed in contact with the ring-shaped packing member. It will be operated again with the drainage blocked.

The sewage odor and backflow prevention floor drainage device of the present invention operated as described above has the following effects compared with the odor and backflow prevention floor drainage devices of the inventions provided with a conventional automatic drainage opening and closing device.

First, the present invention, in the configuration of the opening and closing enclosure and the elevating drive device which is the main member of the internal drain opening and closing means, compared with the configuration of the corresponding components of the prior inventions 1 and 2 having a large number of parts, dimensional precision and complex structure, The number of parts is small and the shape is simple, so it is easy to manufacture parts.

Second, the present invention, in the configuration of the fixing means for supporting the opening and closing the enclosure to the drain box, by providing a high information having a fixing screw hole in the center of the upper end of the drain container of the drain box by fixing the support shaft by screwing, the prior invention Corresponding configurations of 1 and 2 are easier to process and support of the high-information and support shafts, compared to the constructions in which the processing of the members is difficult, bulky, difficult to assemble, and difficult to fix firmly and vertically with respect to the plate surface of the mantle. The shaft can be assembled and fixed in the vertical direction precisely, easily and firmly with respect to the center of the drainage body, thereby stabilizing the lifting operation of the opening and closing enclosure, and accurately inducing the contact between the opening and closing enclosure and the ring-shaped packing member in the watertight state. Can be.

Third, in the present invention, the sliding contact portion between the opening and closing enclosure and the support shaft is formed in a simple structure in which the opening and closing valve lifting tube slides over a long contact portion having a fine play on the outer surface of the circular cross-sectional support shaft of small diameter,

The corresponding configurations of the prior arts 1 and 2 of the prior art are complicated and have a structure that requires precision structure and precision assembly, so that the structure has a simple structure and simple assembly, as compared with a structure having high processing cost and material cost due to precision workability. It has the effect that the shaft, the upper opening and closing valve and the opening and closing valve can be made of lightweight, injection molding product with excellent molding manufacturability.

Fourth, the present invention is formed of only one single configuration in which the sliding contact portion of the lift drive device in the configuration of the open / close enclosure is in sliding contact with the opening / closing lift tube on the outer surface of the support shaft. This structure is complicated, the sliding contact area is large, the size and area of the watertight part is less than the structure, the friction force in the lifting stroke of the opening and closing enclosure ensures smooth and flexible lifting operation, and the installation inside the opening and closing enclosure is easy Inexpensive and watertight small diameter retainer packing types are available.

Fifth, the present invention can significantly increase the number of assembly operations in the overall manufacturing surface by the above-described structural characteristics and easy assembly, thereby significantly increasing productivity.

Sixth, the conventional drainage configurations of the first and second inventions 1 and 2 are narrow in volume and cross-sectional area, so that the sewage discharge power is weak, sewage sludge is caught, and it is difficult to miniaturize the home, the present invention is a drainage of the drainage enclosure Only a small diameter of the support shaft is arranged in the barrel, so that the volume and the flat area of the drain are relatively large, and the sewage discharge pressure is also increased, so that the sewage is viscous or foreign matter having hair, soil, sand, and other bulkiness. Even if the mixture is mixed quickly and smoothly and completely discharged, actively preventing the discharged sewage residue from being deposited on the outer surface of the upper opening and closing sides, and ensuring the drainage tightness in the shutoff state completely, the drainage blocking efficiency can be maintained continuously. Maximized structure of drainage channel and flat area compared to drainage pipe diameter This makes it possible to secure the volume and flat area of the drainage path even when the overall drainage system is downsized, so that it can be applied to the small-sized domestic floor drainage pipe with a diameter of 65 mm or less, and can be used for road sump and various industrial facilities. Large drainage systems, such as floor drains, have structural scalability that can be applied immediately without any structural changes.

Seventh, the present invention, in the configuration of the opening and closing enclosure that is the drain opening and closing means and the lifting drive device configuration, sufficient space is secured on the outside of the elevating operation pipe on the flat cross-section, it is easy to expand the weight in the width direction.

Eighth, the conventional configurations of the first and second inventions 1 and 2 have a watertight configuration for the elevating drive device of the opening and closing opening, which has a large size and a large area, thereby making the packing large and difficult to install. When the elevating operation for opening and closing, the internal volume change of the elevating pipe which is elevated together with the opening and closing opening is large, causing a pumping phenomenon that sucks the discharged sewage during the discharge of sewage. In addition, when used for a long time, due to the above-mentioned pumping phenomenon, there is a fatal problem such that the whole weight of the elevating pipe is increased due to the water filling inside, so that the opening and closing hole does not block the drainage port even in the undischarged state of sewage.

The present invention is to form a watertight configuration of the opening and closing the enclosure, the outer surface of the support shaft to maintain the watertight state with the support shaft, by forming the support shaft and the slidable lifting pipe watertight means, a small diameter of low cost and easy installation By using retainer-type packing member of the product, it is possible to continuously obtain high watertight performance.

In the opening / closing operation of the switchgear, the internal volume is operated with a very small volume change within about 1/30, so pumping does not occur. Therefore, the lift drive inside the switchgear is contaminated with inflow and outflow sewage and is inoperable. Resolve,

In addition, since the actual weight of the opening and closing enclosure is maintained as it is during use, there is an effect that the operation of the elevating drive device and the watertight opening and closing operation of the drainage outlet can be surely ensured even when used for a long time.

 Ninth, the conventional sewage backflow prevention function in the first and second inventions, the hemispherical surface of the opening and closing is implemented by the operation of blocking the internal drainage by watertightly contacting the drain packing,

The operating force that keeps the opening and closing port in the watertight state is formed with a relatively small pressure because it is formed with a lifting balance that the opening and closing port can be lowered even at a small sewage discharge pressure.

Therefore, when the sewage flows backward from the drain pipe side, the counterflow sewage is generally applied to the bottom of the gate and the lower cap at a large upward pressure while the water level fluctuates rather than gradually rising. The opening and closing of the opening and closing is slightly shaken or lowered in the backwashing sewage, which is weak and can form a gap between the packings.If a minute gap is formed between the opening and the opening, the backflow sewage with high pressure and lift force hits the gap and goes up to the whole. There was a problem that the drainage state is broken.

On the contrary, in the present invention, the configuration of the opening and closing enclosure is formed as a spherical sphere having a large diameter corresponding to about 1/2 of the diameter of the drain pipe. When the sewage flows back into the drain pipe, the opening and closing enclosure is generated with a large buoyancy proportional to the reverse flow sewage. Strong sealing force to maintain a more tightly sealed state with the ring-shaped packing member is to have the effect of performing a complete sewage backflow prevention function.

As described above, the present invention has a remarkably increased effect on productivity and operation compared to the prior art inventions, and it is possible to quickly and smoothly discharge the sewage discharged from the drainage bottom to the drainage pipe into the drainage pipe, as well as from the sewage drainage pipe. To ensure the continuous blocking of harmful sewage gas, odors and pest ingress of

Sewage backflow prevention floor drainage system installed in the vicinity of lowland or riverside where the damage caused by sudden rain or rainy season sewage backflow is high and guaranteed by long-term reliable and perfect sewage backflow prevention function. It can improve and actively prevent property damage.

1 to 7 are diagrams showing the configuration and operation state of the floor drainage device 100 for preventing sewage odor and backflow of an embodiment of the present invention that is prefabricated to the bottom drainage fixture 50 as an example.

Reference numeral 40 denotes a drainage floor, and reference numeral 42 denotes a drainpipe connected to the sewer pipe by being embedded in the drainage floor 40 perpendicular to the bottom layer 43.

Reference numeral 50 is a top edge is fixed to the surface of the drainage bottom 40 is embedded with cement mortar 44, the middle portion is formed of a connecting pipe 52 fitted to the top of the drain pipe 42, the present invention inside One embodiment of the sewer odor and backflow prevention floor drainage device 100 displays the drainage fixture to prefabricated.

Inside the upper edge of the drainage fixture 50, the filter plate support ring 51 on which the filter plate 60 having a plurality of filter holes 61 is placed is provided with a stepped edge and a step, and the inner side thereof. The lower end is a configuration provided with a cylindrical connecting pipe 52 which is assembled closely to the inner wall of the drain pipe 42.

The lower end of the connecting pipe 52 is formed with a drainage container receiving ring 53 horizontally bent inward, the inner lower end is provided with a drainage container fixing tube 54, the upper end of the inner wall of the drainage container fixing tube 54 The circumference is provided with a number of conventional rotating fixing grooves (55).

Stainless steel cover member 57 having the same cross-sectional shape is tightly fixed to the upper and outer surfaces of the drainage fixture 50 and the outer surface of the filter plate support rings 51.

The bottom drainage device 100 for preventing sewage odor and backflow in one embodiment of the present invention via a ring-shaped fixed packing 56 on an upper surface of the drainage receiver bearing ring 53 in the drainage device fixing body 50 having the above-described configuration. Is prefabricated and fixed.

One embodiment of the present invention sewage odor and backflow prevention floor drainage device 100 is prefabricated fixedly to the drainage container fixing tube 54 to form a drainage hole and the drainage box 101 to the assembly type It is fixed and consists of the opening and closing enclosure 190 and the lifting drive device for opening and closing the drain in accordance with the discharge state.

The drain box 101 includes a drain container housing 110, a drain container 120 fixedly assembled with the drain container housing 110, a drain hole seat 130, a support shaft holder 140, and a holder cover. It consists of 150.

The drain housing 110 is made of synthetic resin or stainless steel, the cylindrical housing body 111 is assembled with an assembly tolerance on the inner wall of the drain box fixing tube 54;

A drain hole seat fixing ring 112 that is bent inward from the lower end of the housing body 111 and has a circular housing opening 113 formed at the center thereof;

A housing fixing flange 114 bent outwardly from an upper end of the housing body 111;

Rotating fixing protrusions 115 are provided to protrude at a predetermined interval around the outer surface of the housing body 111 and are configured to be assembled to the rotating fixing groove 55 of the drainage fixture 50.

The drain container 120 is made of synthetic resin or preferably stainless steel, hemispherical drain container body 121 having an upper standard that is in close contact with the upper end of the inner wall of the housing body 111;

A drain container lower flange 122 having a circular drain container drain hole 123 at a center portion at a lower end of the hemispherical drain container body 121 and positioned at a predetermined interval upward from an inner end of the drain hole seat fixing ring 112;

The hemispherical drain container body 121 is formed of a drain container fixing flange 124 bent outward.

The drain sheet 130 is a high elastic, high corrosion resistance packing of a soft rubber or synthetic resin material, the ring-shaped seat body intimately intimate between the drain container housing 111 and the drain container body 121 ( 131);

Partly protrudes from the connection space portion between the drain container housing seat fixing ring 112 and the drain container lower flange 122 to the drain container drain port 123 to be in close contact with the outer opening of the upper opening and closing body of the opening and closing body 190 to be described later. It is formed with a drain seat ring 132.

The support shaft holder 140 has a fixing ring 141 having a fixing step 142 on the bottom surface of the synthetic resin material for seating the drain container fixing flange 124 concentrically;

A support shaft high information 144 positioned at the center of the fixing ring 141 and supported at the inner end of the fixing ring 141 by several supports 143;

A support shaft fixing screw hole 145 which penetrates in the axial direction from the center of the support shaft high information 144 and has a screw portion on the inner wall;

The support shaft fixing groove 146 extends concentrically from the upper end of the support shaft fixing screw hole 145.

The holder cover 150, the cover 151 of the plate formed of the same standard as the upper surface of the fixing ring 141 of the support shaft holder 140 made of stainless steel;

The outer cover flange having a height that is bent downward around the outer end of the covering 151, respectively, and surrounds the outer ends of the drain container fixing flange 124 and the fixing ring 141 and the housing fixing flange 114 together ( 152);

An inner cover flange 153 which is bent downwardly between the supports 143 around the inner end of the covering 151 and has a height surrounding the inner end of the fixing ring 141 of the fixing part;

Four fixing pieces 154 which are respectively installed at the lower end of the outer cover flange 152 in four equal positions to be bent at a lower end of the housing fixing flange 114 with a predetermined width;

Four support pieces 155 extending downward from the inner end of the covering 151 toward the center and bent downward to surround both sides of the supports 143;

It is formed as a central support piece 156 extending to the support pieces 155 to cover a portion of the upper surface side end of the high information 144.

The elevating driving device includes a support shaft 160 fixedly assembled to the high information 144 of the drain box 101, a pinion fixing tube 170 and an elevating operating pipe assembleably installed on the support shaft 160. 180).

The support shaft 160 is a shaft member of a circular cross section of a predetermined length corresponding to the operation stroke of the opening and closing enclosure 190 to be described later, the upper end of the high information 144, which is the central member of the support shaft holder 140 A fixing member 161 seated in the fixing groove 146 is provided, and has a screw portion 162 screwed to the support shaft fixing screw hole 145 at the lower end thereof, and the lifting operation pipe 180 is provided at the lower surface thereof. Is provided with a screw hole 163 for fixing.

The pinion fixed tube 170, the cylindrical fixed tube body 171 is coupled to the concentric shaft at a predetermined interval with respect to the periphery of the lower end of the support shaft 160; A bottom plate 172 which blocks the bottom of the fixed tube body 171; A fixed hole 173 is provided in the center of the lower plate 172.

In the pinion tube tube 171, two left and right pinions 175, through which the gear penetrates through the wall and protrudes into the inner and outer surfaces, are respectively arranged in the pinion shaft 176 freely.

The pinion fixing tube 170 of the above configuration is fixed to the support shaft 160 by screwing to the lower end screw hole 163 of the support shaft with a fixing screw 174 on the outside of the lower plate fixing hole 173.

The elevating operation pipe 180 is formed as a cylindrical tube circumferentially circumscribed to the pinion fixing tube 170, the inner wall is engaged with the two left and right pinions 175 of the pinion fixing tube 170, respectively. The rack 181 is provided along the longitudinal direction in the symmetrical position.

The outer surface of the elevating operation pipe 180 is a fixed weight of the metal ring-shaped weight 182 of a certain weight is assembled.

The weight 182 is the elevating operation pipe 180 is moved downwards when the sewage introduced into the drain container 120 is discharged through the drain hole 123 of the drain container 120 and the opening and closing enclosure 190 ) Is formed to close the drain 123 by moving upward. In addition, the weight 182 is the opening and closing the enclosure 190 is moved upward and downward by moving the elevating operation tube 180 by the water pressure of the sewage introduced into the drain container 120 to the drain container It is formed to open the drain 123 of the (120).

The opening and closing enclosure 190 is a hemispherical shape, the upper hemisphere outer part of the upper part has a standard that is close to the inner surface of the drain hole seat ring 132, the upper opening side having a stepped male thread ring 192 on the lower peripheral surface 191;

A hemispherical lower opening / closing member 193 having a female thread ring 194 externally screw-assembled to the lower male ring 192 of the upper opening / closing member 191;

A packing support tube 195 having a diameter larger than the support shaft 160 at the center of the upper end of the upper opening side 191 and extending downward, and formed in a concentric circumferential shape on the outside of the support shaft 160;

A support shaft packing 196 formed in a ring shape closely inserted into a plurality of layers in the packing support tube 195, and having an inner circumferential surface elastically and closely attached to an outer surface of the support shaft 160;
A packing holder 197 fixed to an upper end of the packing support tube 195 to prevent separation of the support shaft packing 196;

It is formed to extend downward from the bottom of the packing support tube 195, and is formed as a cylindrical tube that is extrapolated to the support shaft 160 and slidable up and down, the outer peripheral surface of the pinion fixing tube 170 in the left and right symmetric position Left and right lifting tube racks 199 engaged with the pinions 175 are configured as opening and closing valves 198 formed along the longitudinal direction.

One embodiment of the present invention as described above, the configuration of the sewer odor and backflow prevention floor drainage 100 is assembled in the following assembly configuration.

The embodiment of the sewage odor and backflow prevention floor drainage device 100 is assembled by each of the components produced separately, first assembling the drainage enclosure 101 by the first and second assembly process, and then open and close the enclosure The assembly 190 and the elevating drives are completed by the first to third assembly processes.

In the primary assembly process of the drainage enclosure 101, the support shaft 160 is inserted downward from the top of the high intelligence 144 of the support shaft holder 140 so that the fixing member 161 of the support shaft is formed at the top of the high intelligence. In order to be seated in the support shaft fixing groove 146, the support shaft screw portion 162 is screwed and fixed to the support shaft fixing screw hole 145.

Subsequently, the drain bucket 120 is seated by fitting the drain pipe upper flange 124 to the fixing step 142 formed at the lower edge of the support shaft holder 140, and seating the drain hole on the outer surface of the drain container body 121. After the 130 is in close contact, the housing fixing flange 114 is brought into close contact with the bottom surface of the drain pipe upper flange 124 while covering the drain container housing 110 on the outer surface of the drain sheet body 131. Complete the assembly process.

In the drainage container secondary assembly process, after the fixing piece 154 covers the holding plate cover 150 which is vertically opened with respect to the upper surface of the supporting shaft holding plate 140, the fixing pieces 154 of the holding plate cover are respectively inward. By bending, the fixing ring 141 of the support shaft holder, the upper flange 124 of the water tank and the fixing flange 114 of the water tank housing are pressed to the inner surface of the cover 151 of the holder cover.

According to the secondary assembly process of the drainage enclosure 101 as described above, the upper surface and the rim side end of the support shaft holder 140 and the side ends of the support 143 is fixed to the holder cover 150 of stainless steel in close contact.

In addition, the lower end of the support shaft holder 140, the drain container 120, the drain port sheet 130 and the drain container housing 110 are sequentially stacked and fixedly fixed as an integral body.

In addition, the drainage seat 130 is supported in close contact between the outer surface of the drain container body 121 and the inner surface of the drain container housing 110, and the drain hole seat ring 132 is installed to protrude into the drain container drain 123. .

In addition, a straight support shaft 160 is fixedly supported downward in the high information 144 of the support shaft holder 140.

When the assembling process of the drainage enclosure 101 as described above is completed, the opening and closing enclosure 190 and the elevating driving device are assembled with respect to the support shaft 160 in the first to fourth assembling processes.

The primary assembly process of the opening and closing enclosure 190 is a step of assembling the opening and closing valve lifting tube 198 so as to slide up and down while maintaining a watertight state between the support shaft 160.

After the packing holder 197, the three support shaft packings 196, the upper opening and closing sides 191 are sequentially inserted with respect to the support shaft 160, three supports in the packing support tube 195 The shaft packings 196 are sequentially stacked, and the edges of the upper support shaft packings 196 are fixed with the packing guide 197.

In the secondary assembly process of the opening and closing enclosure 190, in the state in which the position of the upper opening and closing sides 191 fitted to the support shaft 160 in the primary assembly process is aligned and fixed to the maximum ascending point of the drainage block stroke described later, Inserting the pinion fixing tube 170 to the lower end of the support shaft 160, the left and right pinions 175 to the left and right elevating pipe racks 199 formed on the outer circumferential surface of the opening and closing elevating pipe 198, respectively 1 ~ 1 2 pitches are engaged, and then the lifting actuating pipe 180 is inserted from the lower side of the pinion fixing pipe 170 to the outer circumferential surface, so that the left and right operating pipe racks 181 are placed on the left and right pinions 175 of the pinion fixing pipe 170. Inserted so as to be pitched by pitch, and then the lower plate 172 of the pinion fixing tube 170 is fixed to the screw hole 163 of the support shaft by inserting a fixing screw 174 in the fixing hole 173.

In the third assembling process of the opening and closing enclosure 190, the lower opening and closing edge 193 is screwed into the female thread ring 194 at the lower end of the upper opening and closing edge 191 having the male ring 192 following the secondary assembly process. It is carried out by the process.

According to the first to third assembling process of the opening and closing the enclosure 190, the elevating operation pipe 180 is in the state in which the upper left of the two left and right operating pipe racks 181 is engaged with the two left and right pinions 175. Two left and right elevating pipe racks which are supported at the lower outer surface of the pinion fixing tube 170 in the lowered position, and the upper and lower opening / closing sides 191 and 193 are formed in a spherical shape, and are formed in the opening and closing elevator tube 198. The lower ends of the 199 are supported above the pinion fixing tube 170 in a state of being engaged with the two left and right pinions 175.

One embodiment of the sewage odor and backflow prevention floor drainage device 100 is assembled by a series of assembling process as described above, the function of the floor drainage according to the use state diagram installed in the bottom drain of the example shown in Figs. Odor and backflow prevention function.

In an example drainage bottom 40, the drainage pipe 42 in which the drain pipe 42 is piped, the removable filter plate 60 is provided to the inside of the upper edge closed with a stainless steel cover member 57, the filter net ( A drainage fixture 50 having a drainage enclosure fixing tube 54 drawn into the drainpipe 42 below 600 is fixed by cement mortar 44.

One embodiment of the present invention sewage odor and backflow prevention floor drainage device 100, the strainer (60) with respect to the drainage fixture 50 is fixed to the drainage bottom 40 and drainage container fixing pipe (54) It is assembled and installed in a rotational manner.

One embodiment to the drainage container fixing pipe 54 The method of assembling the bottom drainage device 100 for preventing sewage odor and backflow is first installed by mounting the fixed packing 56 on the drainage support ring 53. The opening and closing enclosure 190 of the floor drainage device 100 for preventing odor and backflow is inserted into the drain pipe 42 through the drain container fixing tube 54, and then the side of the fixing flange 114 of the drain container housing 110. Rotating fixing protrusions (115) provided on the periphery of the rotational fixing grooves (55) provided on the inner wall of the drainage container fixing tube (54) and then rotate the drainage enclosure (101) in the locking direction, drainage enclosure (101) The bottom surface of the housing fixing flange 114 of the) is fixed while being pressed in the watertight state with the upper surface of the drainage container support ring 53 while pressing the fixing packing (55).

Subsequently, when the sieve 60 is re-covered above the fixed drain box 101, the installation of the bottom drainage device 100 for preventing sewage odor and backflow to the bottom drain is completed (see FIG. 6).

As described above, when the installation of the drain drainage device 100 for preventing sewage odors and backflow is completed in the drainage fixture 50 of the floor drainage outlet, the opening and closing enclosure 190 is moved by lifting and lowering devices installed therein. In addition, the internal drainage of the drain box 101 is maintained in a blocked state of the drain.

Referring to the blocking state of the drainage of the opening and closing enclosure 190 in detail,

The elevating operation pipe 180 installed on the outer surface of the pinion fixing tube 170 in the inside of the opening / closing box 190 has upper ends of the left operating pipe racks 181 provided on the inner wall of the left and right pinions 175 of the pinion fixing tube 170. In a state of being engaged to the field, it is supported with a lowering thrust capable of raising the opening and closing enclosure 190 to the maximum ascending position by the weight of the weight 182 fixedly attached to the outer peripheral surface.

Accordingly, the left and right pinions 175 of the pinion fixing tube 170 correspond to the lowering thrust of the elevating operation pipe 180, and the lower ends of the pinion fixing tubes 170 are engaged with each other at the inner end of the left and right pinions 175. It acts as a lifting thrust to raise the left and right lifting tube racks 199, and thus the support shaft 160 to be integral with the left and right lifting tube racks 199 and to slide up and down with respect to the support shaft 160. The opening and closing valve elevating pipe 198 extrapolated to is supported to the maximum lift position.

When the opening and closing valve elevating pipe 198 is supported by the support shaft 160 in the maximum ascending position in the above-described series of operations, the entire opening and closing enclosure 190 assembled with the opening and closing valve elevating pipe 198 as an integral structure is also maximum. Supported in an elevated position.

When the opening and closing enclosure 190 is supported in the maximum raised position, the upper opening and closing edge 191, which is the upper outer body, is supported in the maximum rising position, and the middle portion of the spherical outer circumferential surface of the upper opening and closing edge 191 is a drainage path of the drainage enclosure 101. With respect to the inner spherical surface of the drain hole seat ring 132 that is exposed to, it is operated in a blocked state of the drain passage contacting in a watertight state while pressing upward from the bottom.

When the upper opening side 191 is operated in the drainage block state in which the drain opening seat ring 132 in a watertight state as described above, the drain box drain portion 123 of the center of the drain container formed as an internal drainage path of the drain box 101 Is completely blocked from the drain pipe 42 below.

One embodiment as described above, while the opening and closing enclosure 190 of the floor drainage device 100 for preventing sewage odor and backflow is supported in a drainage block state, the sewage dumped in the drainage floor 40 is disposed inside the drainage enclosure 101. When the discharged into the sewage discharged state, the opening and closing the enclosure 190 is operated in the drainage opening state by the following operational administration.

When the sewage is discarded into the drainage bottom 40, the sewage is introduced into the drain container 120 through the filter plate 60, and with respect to the upper surface of the upper opening / closing side 191 supported by the drainage block, It acts as a constant sewage discharge pressure doubled in weight to drop pressure.

When the sewage discharge pressure is applied to the upper surface of the upper opening and closing sides 191, the opening and closing enclosure 190 is lowered to the lowering force corresponding to the sewage discharge pressure.

When the opening and closing enclosure 190 is lowered, the upper surface of the upper opening and closing sides 191 which were in watertight contact with the inner spherical surface of the drain opening seat ring 132 is lowered and the drain container drain opening 123 is opened.

When the drain container drain 123 is opened, the discharge sewage drawn into the drain container body 121 is discharged to the drain pipe 42 at the lower part.

The sewage dumped into the drainage bottom as described above is introduced into the interior of the sump body 121, and in the sewage discharge state where the sewage discharge pressure is continuously acted on the upper side opening / closing side 191, the internal elevating drive of the opening and closing enclosure 190 is performed. The device is controlled and operated with an upstroke.

Ascending stroke of the internal elevating drive device of the opening and closing enclosure 190 is performed in proportion to the sewage discharge pressure acting on the upper end surface of the upper opening and closing side 191, which is the upper member of the opening and closing enclosure 190.

When the sewage discharge pressure is applied to the upper surface of the upper opening and closing sides 191, the upper opening and closing sides 191 is lowered, the opening and closing valve lifting pipe 198 provided as an integral structure in the inner center, the support shaft 160 It will descend on the outside of the.

When the opening / closing elevator 198 descends, the left and right elevator tube racks 199 vertically provided on the left and right sides of the outer surface are also lowered, and the left and right pinion of the pinion fixing tube 170 meshed with the left and right elevator tube racks 199. 175 are rotated inwardly, respectively.

When the left and right pinions 175 rotate inwardly, the left and right actuating pipe racks 181 engaged with the outwardly protruding gear teeth of the left and right pinions 175 are lifted from the outer surface of the pinion fixing tube 170, thereby lifting up and down. The lifting stroke of the operation pipe 180 is made to ascend to the top of the pinion fixed tube 170 is made.

The lifting stroke of the elevating operation pipe 180 is based on a pressure value at which the sewage discharge pressure lowers the upper opening / closing side 191 to the maximum lowering position. Maintained in the maximum ascending position, when the lower pressure is less than the reference is controlled in the stroke to move the lifting position of the elevating operation pipe 180 in proportion to the high and low degree of the low pressure to move up and down.

 The elevating stroke of the elevating operation pipe 180 finally controls the elevating position of the upper opening / closing edge 191, so that the inner spherical surface of the drain opening seat ring 132 and the upper opening / closing edge of the drain opening 123 can be controlled. 191) It performs the function of proportionally controlling the opening area of the sewer drainage channel formed between the upper surfaces in conjunction with the sewage discharge.

When the sewage discharge in the sewage discharge state as described above is completed, the opening and closing enclosure 190 of the floor drainage device 100 for preventing sewage odor and backflow, the internal elevating drive device is operated in the downstroke to reduce to the drainage blocked state do.

If the sewage discharge introduced into the interior of the sump 120 from the drain bottom 40 in the above-described sewage discharge state is gradually reduced, the sewage discharge pressure acting on the upper opening / closing valve 191 is also gradually below the reference pressure. Since the lowering operation, the elevating operation pipe 180, which is controlled in the upward stroke in proportion to the sewage discharge pressure, is also controlled by the lower stroke gradually descending by the downward thrust of the weight 182 at the maximum upward position.

Subsequently, when the sewage discharged into the interior of the drain 120 from the drainage bottom 40 is stopped and the sewage discharge is completed, the sewage discharge pressure acting on the upper opening / closing valve 191 is also completely extinguished, thereby gradually descending to the descending stroke. The elevating operation pipe 180 that has been used is completely lowered to an initial state in accordance with the time point when the sewage discharge pressure disappears.

As described above, when the lifting operation pipe 180 is completely lowered to the initial position in the downward stroke, as described above, the upper opening side 191 is controlled to rise to the maximum ascending position while being pressed against the inner spherical surface of the drain seat ring 132. In contact with the, the opening and closing the enclosure 190 is operated in a waterway blocking state to block the internal waterway in a watertight state.

The drainage path blocking state of the opening and closing enclosure 190 is continuously maintained until the sewage flows back into the drain container 120 from the drain bottom.

One embodiment of the present invention as described above sewage malodor and backflow prevention floor drainage 100, the same type of the first line of the invention of the first and second odor and backflow prevention floor drainage device provided with an automatic opening and closing device In comparison, it has the following effects.

First, the embodiment of the present invention sewage odor and backflow prevention floor drainage 100 is a main member of the internal drainage opening and closing means 190 and the configuration of the lifting drive device, the support shaft 160 and the pinion fixed tube Composed of the 170 and the elevating operation pipe 180 and the opening and closing enclosure 190, the corresponding components of the prior art inventions have a small number of parts and a small number of parts, compared to a configuration having a large number of parts, a dimensional precision and a complex structure Simple and easy to manufacture parts have the effect.

Second, one embodiment of the present invention sewage odor and backflow prevention floor drainage device 100 in the configuration of the fixing means for supporting the opening and closing the enclosure 190 to the drainage enclosure 101, the central portion of the support shaft holder 120 By providing a high thread 144 having a fixing screw hole 145, and by providing a screw portion 162 on the upper end of the support shaft 160,

In the conventional inventions 1 and 2, the corresponding configuration is formed by 'fixing the guide with three fixing screws on the bottom of the filter sphere and screwing the upper end of the drive tube having four guide pieces inside the guide'. It solves the problem that the member is difficult to process, bulky, difficult to assemble, and difficult to fix accurately and firmly in the vertical direction with respect to the plate surface of the mantle,

It is easy to manufacture the members of the high information 144 and the support shaft 160, and the support shaft 160 can be assembled and fixed in the vertical direction accurately, easily and firmly with respect to the center of the plate surface of the support shaft holder 140,

This stabilizes the lifting operability of the opening and closing enclosure 190 and accurately induces the watertight contact between the opening and closing enclosure 190 and the drain hole seat ring 132,

In addition, since the support shaft 160 and the high information 140 are secured by their own shape, sufficient strength is secured, and thus, the molding shaft 160 and the high information 140 have an effect of being able to be manufactured by injection molding products having excellent moldability and low cost.

Third, one embodiment of the present invention sewage odor and backflow prevention floor drainage device 100 has an opening and closing enclosure 190 and the lifting sliding structure, the opening and closing edge 191 of the outer diameter of the circular cross-sectional support shaft 160 of small diameter Opening and closing valve lifting pipe 198 is formed of a simple structure having a fine play and sliding over the vertically long contact portion,

In the prior inventions 1 and 2, the corresponding configurations are described as' 4 guide pieces are formed at the top of the drive tube, and the four guide pieces are inserted into and out of the trap attached at intervals inside the guide pipe of the opening and closing port. Complex and precise structure, such as a configuration having a frame formed with two through grooves, and a configuration in which the guide tube of the opening and closing opening having a packing at the top is extrapolated with a guide and a sliding structure that is fixedly fixed to the center bottom of the manure. It is formed in a configuration that requires precision assembly, and solves the problem of high processing cost and high material cost by precision workability, support shaft 160 and upper opening and closing sides 191 and opening and closing sides having a simple structure and simple assembly The lifting pipe 198 has the effect of being able to manufacture a lightweight, excellent molding manufacturability and low cost synthetic resin injection molded articles.

Fourth, in one embodiment of the present invention sewage odor and backflow prevention floor drainage device 100 is a watertight structure of the elevating drive device of the opening and closing enclosure 190, the opening and closing valve elevating pipe 198 on the outer surface of the support shaft 160 It is formed by only one single configuration in sliding contact, and the packing structure at the top is the contact structure of the guide pieces on the upper four sides of the driving tube and the four through grooves of the opening and closing trap, which are corresponding configurations in the prior art. The guide tube of the opening and closing opening having a guide structure fixed to the center bottom of the manipulator and the structure to extrapolate to the sliding structure 'complicated and wider sliding contact area, the size and area of the watertight portion than the friction structure, Smooth and flexible lifting operability is ensured by the lifting sliding structure of the opening / closing elevator tube 198 having a small area, and the installation of the lifting driving device inside the opening and closing enclosure 190 is easy. In addition, it is possible to protect with high watertightness by using a small type of small diameter retainer-type packing.

In addition, the opening and closing the enclosure 190 is opened and closed at a uniform interval over the drain opening seat ring 132 and the entire circumference of the opening and closing edge 191 by a flexible lifting stroke, so as another invention of the invention 'disc opening and closing with a tension spring If the amount of sewage is small by lifting the sides to open and close the drainage, it is possible to solve the problem that the sewage residue catches on the opening part and loses the blocking performance by partially discharging the sewage due to partial gap between only one side of the disc open / close side. It is.

Fifth, the embodiment of the present invention sewage odor and backflow prevention floor drainage device 100 is significantly reduced in the overall manufacturing surface due to the above-described structural characteristics and easy to assemble can significantly increase productivity.

Sixth, in one embodiment of the present invention sewage odor and backflow prevention floor drainage device 100, the configuration of the drain hole of the prior inventions 1 and 2, the large diameter 'guide' and ' The upper guide pipe of the opening and closing hole is disposed at the center of the large cross section, so that the volume of the drainage port is relatively small and the overall flat area of the drainage port is narrow, and the sewage drainage is weak and the sewage scum is difficult, and it is difficult to miniaturize the home. Compared to

Only a small diameter support shaft 160 is disposed in the drainage path formed in the drainage box body 121 of the drainage container 101, so that the volume and the flat cross-sectional area of the drainage port are relatively large. Overwhelmingly, even if the sewage is viscous or mixed with hair, soil, sand and other bulky foreign matter quickly and smoothly and completely discharged, the discharge sewage sludge is the inner wall or upper opening side 191 of the drain body (121) By actively preventing the deposition on the outer surface of the drainage, the drainage in the closed state is completely guaranteed to have a high sustained drainage efficiency.

In addition, the volume and flat area of the drainage path are maximized compared to the diameter of the drainage pipe, so that the volume and the cross-sectional area of the drainage path can be sufficiently secured even if the overall configuration of the drainage system is reduced. Has the advantage of easy application.

Seventh, the embodiment of the present invention sewage odor and backflow prevention floor drainage device 100 is a simple configuration that is different from the corresponding configuration of the prior art inventions 1 and 2, the opening and closing enclosure 190 and the lifting drive device configuration that is a drain opening and closing means At the same time, sufficient space is secured in the plane, and the weight of the lifting operation pipe 180 has a weight balance corresponding to the discharge pressure of the sewage, and it is easy to install the weight 182 that controls the drainage opening state and the blocking state. Have

The structure of the drain opening and closing opening of the prior inventions 1 and 2 and the lifting drive device include a drive column having a rack at left and right ends thereof at a central portion thereof, and a drive tube, a weight rack pipe, and a trap are sequentially formed around the drive column. , Five guide members, such as guide, guide tube, etc. are externally circumscribed with a certain thickness and clearance. Therefore, the diameter of the upper guide tube and the lower cap of the opening and closing member, the outermost member, should be limited to at least 1/2 of the diameter of the drain. Since the weight rack tube should be freely lifted without interfering with the lower cap and the inner surface of the trap, a narrow flat cross-sectional space is inevitably formed between the outer surface of the weight rack tube and the inner surface of the trap, so that the weight balance required by the lifting device Since a weight having a weight must be formed in a narrow flat cross-sectional space portion, the expandability of the weight in the thickness portion is limited to the proper weight. This was a very difficult problem to install button.

However, in one embodiment of the present invention sewage odor and backflow prevention floor drainage device 100, the configuration of the elevating drive device is the same in terms of using the two left and right pinions and the components that are respectively engaged in the inside and the outside of these pinions. However, the number of operating tube members mounted and provided with them is reduced, and its own shape and coupling configuration are improved to a simple coupling structure, and the upper and lower parts of the opening and closing enclosure 190 have a built-in elevating drive device and the middle part is screwed together. Formed by a single spherical body by the opening and closing sides 191, 193, sufficient space is secured on the flat cross-section outside the elevating operation pipe 180 inside the opening and closing enclosure 190, the weight balance corresponding to the sewage discharge pressure The weight of the titration while extending the elevating operation pipe 180 to control the lifting and lowering in the open state and the blocked state in the drainage state, in the width direction arbitrary shape It has an effect that can be easily set and mounted with a sieve.

Eighth, the watertight configuration for the lifting drive device of the opening and closing port in the prior inventions 1 and 2, 'sliding structure on the outer surface of the guide that is fixed to the guide tube of the opening and closing opening having a packing on the upper surface of the center of the filter opening with a fixed screw It is formed in an extrapolated configuration, and since the watertight portion size and area of the opening and closing guide pipe are formed in a wide structure, the watertight portion packing becomes large, and there is a problem of difficulty in mounting and defects in operation. When the predetermined lifting operation is performed, the opening and closing guide is configured in such a way that the inside volume of the opening and closing enclosure is changed at least 1/4 in proportion to the lifting height change of the lifting pipe formed of the upper and lower guide pipes and the lower cap for the guide. The inside of the pipe is closed by the lower cap at the bottom, and the packing can be smoothly lifted up and down Loosely mounted configuration,

When the opening and closing port is lowered during the discharge of sewage, the internal volume increases and the air is sucked into the gap between the upper and the upper guide pipe and the guide contact part, so that the pumping phenomenon of sucking the discharged sewage also occurs. Of course, fine residues contained in the sewage are deposited on the site while contacting the contact portion between the drive tube guide and the through groove and the fitting portion of the pinion and the rack, so that the sliding contact portion and the pinion and the rack fitting portion cause defects that cause a malfunction. There was a fatal problem that the elevating drive device or the entire opening or closing door became inoperable.

In addition, when used for a long time, the discharged sewage sucked between the opening and closing guide pipe and the guide due to the above-mentioned pumping phenomenon drops from the inside to the lower portion of the lower cap and gradually collects on the floor, so As the weight increases, the actual weight of the switchgear collapses and the lift balance with the weight pipe formed by the appropriate weight is adjusted according to the initial weight of the switchgear itself. There was another fatal problem that can not block the drain.

On the contrary, the elevating drive device watertight configuration of the floor drainage device 100 for preventing sewage odor and backflow of the present invention includes a separate expanded packing support tube 195 at an upper end of the opening / closing elevating pipe 198. Since the support shaft packing 196, which is a small retainer type, is installed in a multi-layered manner to wrap elastically with respect to the outer surface of the support shaft 160, the packing member is easy to manufacture and easy to install, and one small diameter circular watertight seal is provided. Because of its structure, high watertight performance is ensured for a long time.

On the other hand, since the internal volume of the opening and closing enclosure 190 in the opening and closing lifting stroke is operated to have a very small volume change of about 1/30 or less, there is no pumping phenomenon, and the sewage discharged into the interior of the opening and closing enclosure 190 during sewage discharge. Is almost completely prevented from entering the sewage in the interior of the opening and closing enclosure 190 or to prevent the accumulation of dirt in the operating part of the elevating drive device, the effect of ensuring the operation of the elevating drive device even when used for a long time There is.

Ninth, the sewage backflow prevention function in the prior inventions 1 and 2 is formed with a lifting balance that allows the opening and closing of the drain opening and closing even at a small sewage discharge pressure. Therefore, it is formed at a relatively small pressure.

Therefore, when the sewage flows backward from the drain pipe side, the counterflow sewage is generally applied to the bottom of the gate and the lower cap at a large upward pressure while the water level fluctuates rather than gradually rising. The opening and closing of the opening and closing is slightly shaken or lowered in the backwashing sewage, which is weak and can form a gap between the packings.If a minute gap is formed between the opening and the opening, the backflow sewage with high pressure and lift force hits the gap and goes up to the whole. There was a problem that the drainage state is broken.

On the contrary, in one embodiment of the present invention, the bottom drainage device 100 for preventing sewage odor and backflow is formed of a spherical sphere having a large diameter corresponding to about 1/2 of the diameter of the drain pipe 42. In this case, when the sewage flows back to the drain pipe 42, the opening and closing body 190 generates a large buoyancy proportional to the backflow sewage, and thus maintains the watertight state with the drain seat ring 132 with a strong upward pressure, thereby ensuring perfect sewage. It has the effect of performing a backflow prevention function.

As described above, the sewage odor and backflow prevention floor drainage device 100 having a significantly increased effect on productivity and operation compared with the prior art inventions, the sewage odor and backflow prevention floor to be implemented according to the present invention. Significantly improving the reliability as a drainage system, it is possible to perform the sewage odor and backflow prevention function perfectly.

8 to 11, the upper opening and closing sides 191 which is an outer surface member of the opening and closing enclosure 190 exposed to the sewage discharge part with respect to the configuration of the bottom drainage device 100 for preventing sewage odor and backflow of the embodiment of the present invention. And the configuration of another embodiment opening and closing enclosure 290 having means for effectively maintaining the function of the lower opening and closing edge 193.

The other embodiment of the opening and closing enclosure 290 is formed with the same components as the embodiment of the opening and closing enclosure 190, respectively, with respect to the outer surface of the upper, lower opening and closing sides 291 and 293, respectively, stainless steel The hemispherical shape of the plate material, the lower opening and closing side cover (311, 314) is added to the configuration in close contact.

In addition, the configuration of the upper opening and closing sides 291 in the other embodiment by removing the packing guide 197, which is a member for pressing the upper edge of the support shaft packing 196 in the configuration of the upper opening and closing sides 191 And, instead, in the upper center portion of the upper opening and closing side cover 311 is a configuration formed with a packing fixing hole 313 for pressing the upper edge of the support shaft packing (196).

The upper and lower opening and closing cover 311 and 314 is fixed to the outer surface of the upper and lower opening and closing sides (291, 293) in close contact, the combination of the upper and lower opening and closing sides (291, 293) Assembling grooves 294 and 295 are formed in four quarters with respect to the ends, and the four assembling grooves 294 and 295 are formed at the coupling ends of the hemispherical upper and lower opening and closing cover 311 and 314, respectively. The assembly pieces 312 and 315 are bent and seated in the field (see FIG. 11).

According to the configuration of the other opening and closing enclosure 290 as described above, the upper, lower opening and closing sides 191, 193 of one embodiment is molded of a synthetic resin injection molded product can be generated in a long time use state because the spherical precision and surface strength is low It is possible to actively prevent the water-tight effect of the drain hole seat ring 132 from being lowered.

In an embodiment having a low surface strength, when the lower opening / closing sides 191 and 193 are used for a long time while being exposed to the sewage discharge part, the surface of the upper opening / closing side 191 may be scratched by solids mixed in the discharge sewage. It gradually becomes rough, and the contact area with the drain seat ring 132 is also worn out by repeated pressing.

As such, when the surface of the upper opening and closing edge 191 becomes rough and the contact portion partially wears out, eventually, fine residue of the discharged sewage is easily deposited or hair is caught, and in contact with the drain seat ring 132. If the watertight efficiency is lowered or severely, the blocking function will be lost.

However, as described above, another embodiment in which the hemispherical upper and lower opening and closing cover 311 and 314 of the stainless steel plate are added to the outer surfaces of the upper and lower opening and closing sides 291 and 293 in close contact with each other. According to the configuration of 290, the surface strength is increased, so that the surface of the discharge sewage is prevented from being scratched even when used for a long time, and the fine debris of the discharged sewage is not easily deposited or caught on the hair, and the contact part is not worn, so it is always smooth and accurate. By maintaining the spherical surface, the watertight effect with the drainage seat ring 132 is always maintained normally in the drainage block state, thereby extending the overall life of the drainage system, and also improving the corrosion resistance of the discharged sewage. It will also have an effect.

12 shows a configuration of another embodiment of the opening and closing enclosure 290a in which the lower opening and closing side 293 is removed to simplify the structure of the configuration of the other opening and closing enclosure 290 described above.

Another embodiment of the opening and closing enclosure 290a, among other components of the opening and closing enclosure 290, to remove the lower opening and closing edge 293, the lower opening and closing cover 314 of the stainless steel plate It is provided with a stainless steel plate lower opening and closing side (314a) to remove the upper assembly piece 315 in the configuration and instead formed a screw portion 316, the lower opening and closing side (314a) at the bottom of the upper opening and closing side (291a) The upper threaded portion 316 is coupled to form a male screw portion 192a at a position whose outer circumferential surface coincides with the lower outer circumferential surface of the upper open / close edge 291a, thereby interposing a packing 317 at the lower end of the upper open / close edge 291a. The stainless steel plate lower opening and closing edge (314a) is a configuration that is modified to direct screw assembly.

According to this configuration of another embodiment of the opening and closing enclosure 290a, while having the same effect as the opening and closing enclosure 290, by removing the bulky synthetic resin lower opening and closing edge 293 to reduce the number of parts and weight Also, it has the effect of increasing the material cost and assembly labor.

13 to 16 illustrate a configuration of the opening and closing enclosure 190 among the configurations of the floor drainage device 100 for preventing sewage odor and backflow, according to an embodiment of the present invention, for more smoothly raising and lowering operation of the opening and closing enclosure 190. The configuration of another embodiment opening and closing enclosure 390 is shown with one embodiment air valve 320 added as a means.

The air valve 320 has a configuration in which a discharge hole 395 is formed in the lower center portion of the hemispherical lower opening / closing valve 393 and an air opening and closing hole 321 is provided in the discharge hole 395. to be.

The discharge hole 395 has an upper and lower opening / closing sheet 397 and 398 extending conically in a top and a bottom, respectively, about a drain hole 396 of a small diameter in a cross-sectional view. It is formed into an ovoid shape.

The air openings and openings 321 are synthetic resin packings such as flexible rubber materials or flexible urethanes. The diameter of the air openings and openings 321 is smaller than the diameter of the drains 396 and the length of the top and bottom is longer than the length of the top and bottom of the drains 396. An intermediate member 322 inserted into the 396 and an inverted conical guide 323 formed at an upper end of the intermediate member 322 and a lower end of the intermediate member 322 are formed in the lower opening / closing sheet 398. It is formed as a conical opening and closing rods 324 in watertight contact with the inner surface.

In the above-described configuration, the air opening and closing hole 321 is manufactured by a separate molding process, and the hooking hole 323 is smaller than the drain hole 396 to be assembled by forcibly fitting.

According to the configuration of another embodiment of the opening and closing enclosure 390 having the air valve 320 as described above, since the air opening and closing 321 is usually lowered and the drain port 396 is opened, the opening and closing enclosure 390 If the water inside the inside immediately discharged downward (see Fig. 15),

When the sewage flows back from the drain pipe 42 side, the reverse flow pressure acts on the bottom surface of the opening / closing rod 324, which is the lower end member of the air opening / closing 321, so that the opening / closing rod 324 is raised as a whole. Since the contact with the opening and closing sheet 398 in a watertight state (see FIG. 16), the reverse flow sewage is prevented from flowing into the interior of the opening and closing enclosure 390, and the opening and closing enclosure 390 is formed as a high flow prevention effect float. Has the effect.

In addition, according to the configuration of the opening and closing enclosure 390 provided with the air valve 320, since the air flows smoothly through the air valve 320 even if the internal volume changes during the lifting operation of the opening and closing enclosure 390, Conventional interior is a closed type line invention or one embodiment of the present invention, such as the opening and closing enclosure 190 can be solved the structural cause that may take a resistance due to the slight change in volume in the lifting operation, the lifting slide contact portion The pumping phenomenon of sucking the discharge sewage into the inside of the shaft packing 196 may be eliminated at the source.

In addition, even if sewage flows into the inside of the opening and closing enclosure 390 due to leakage of the support shaft packing 196 or condensed water is generated inside due to an internal temperature difference with the discharged sewage, it is immediately discharged to the outside through the discharge hole 395. By solving the problem that the water is accumulated inside the switchgear and the weight is lost due to the use of the prior art inventions, the blocking function is lost. It is to have the effect.

FIG. 17 shows a configuration of another embodiment of the air valve 330 to which the embodiment of the air opening and closing hole 321 is applied to the structure of the other embodiment opening and closing enclosure 290a of the present invention.

The air valve 330 is configured to form an air discharge hole 331 with respect to the lower end central portion of the stainless steel plate lower opening / closing side 314a. It is the structure which provided the air opening and closing port 321.

The air outlet hole 331 has a conical lower opening / closing sheet which extends downward from the outlet 332 having a small diameter when viewed in cross section and contacts the inclined surface of the air opening and closing rod 324 in a watertight state. It is a structure provided with 333.

According to the configuration of another embodiment of the air valve 330 as described above, the intermediate member 322 of the air opening and closing hole 321 is inserted into the outlet 332 of the air discharge hole 331 with a gap, so that the opening and closing enclosure When the water inside the lower opening and closing side (314a) of (290a) is immediately discharged downward,

When the sewage flows back from the drain pipe 42 side, the reverse flow pressure acts on the lower end of the air opening and closing hole 321, so that the air opening and closing hole 321 rises as a whole while the lower opening and closing edge 324 is watertight with the lower opening and closing seat 333. In contact with the state, since the reverse flow sewage is prevented from flowing into the opening and closing enclosure 290a, the same operation and effect as the above-described air valve 320 can be obtained.

FIG. 18 is a view showing the configuration of another embodiment tubular air opening 341, which facilitates the upward operation of the air opening and closing 321 with respect to the configuration of the air valves 320 and 330 of the embodiment of the present invention. have.

The other embodiment of the tubular air opening 341, the configuration is the same as the configuration of the external configuration of the embodiment air opening 321, the entire member of the thin upper, upper and lower sides 343 344 and the intermediate member 345, and formed in a tubular shape to form a space portion 346 sealed therein.

 According to the configuration of another embodiment of the tubular air opening 341 as described above, when the sewage flows back from the drain pipe 42 side, the reverse flow water pressure acts on the lower end of the tubular air opening 341 to form a buoyant receiving buoyancy. While maintaining the watertight state of the discharge holes 331 and 395 of the lower opening and closing seats 314a and 398 with the pressing force of which the ascending force is significantly increased, the opening and closing enclosures 290a and 390 are secured to the spherical body. Has the effect of forming.

Although various embodiments for the implementation of the present invention have been described above, the various embodiments as described above illustrate one preferred configuration in the practice of the present invention and do not necessarily limit the present invention, those skilled in the art If various modifications and variations can be made without departing from the scope of the claims.

For example, assembling structures with the drainage fixture provided in the drainage enclosure of the floor drainage apparatus 100 for preventing sewage odor and backflow, one embodiment of the existing drainage fixture 50 for a general house installed in the floor drain As formed in accordance with the present invention, it is possible to change the design of the drainage fixture of another type, the water collecting well manhole for a road, and the like into another structure suitable for the assembly means.

In addition, the form of the opening and closing enclosure of the present invention can be changed to a similar sphere in addition to the spherical shape, the configuration of the air valve provided in the opening and closing enclosure may be carried out in other forms of configuration having the same function in addition to the illustrated configuration. Could be.

1 is an assembled cross-sectional view of an embodiment of the present invention sewage odor and backflow prevention floor drainage

Figure 2 is an exploded perspective view of the floor drainage device for preventing sewage odor and backflow of one embodiment of the present invention

3 is a partial exploded cross-sectional view of the opening and closing enclosure and the elevating drive device of the floor drainage device for preventing sewage odor and backflow of an embodiment of the present invention;

Figure 4 is an enlarged cross-sectional view of a part of the drainage enclosure of the embodiment of the sewer malodor and backflow prevention floor drainage device of the present invention

Figure 5 is a cross-sectional view of the floor drainage fixture for an embodiment of the present invention sewage odor and backflow prevention floor drainage

Figure 6 is a half cross-sectional view showing a drainage blocking state of the floor drainage device for preventing sewage odor and backflow of one embodiment of the present invention

Figure 7 is a half cross-sectional view showing a drain opening state of the floor drainage device for preventing sewage odor and backflow of one embodiment of the present invention

Figure 8 is an exploded cross-sectional view of the cover body applied to another embodiment of the opening and closing enclosure of the floor drainage device for preventing sewage odor and backflow of one embodiment of the present invention

9 is an exploded cross-sectional view of another embodiment of the opening and closing enclosure of the floor drainage device for preventing sewage odor and backflow of an embodiment of the present invention;

10 is a cross-sectional view of another embodiment of the opening and closing enclosure during the construction of the floor drainage device for preventing sewage odor and backflow of an embodiment of the present invention;

11 is a cross-sectional view taken along the line A-A in the configuration of FIG.

Figure 12 is an exploded cross-sectional view of a cover body applied to another embodiment of the opening and closing enclosure of the floor drainage device for preventing sewage odor and backflow of one embodiment of the present invention

13 is an assembled cross-sectional view of another embodiment of the opening and closing the enclosure provided with an air valve in one embodiment of the sewer malodor and backflow prevention floor drainage device of the present invention

14 is an enlarged exploded view of the air valve in the configuration of FIG.

Figure 15 is an enlarged cross-sectional view of the air valve lowered state of the other embodiment of the configuration of the floor drainage device for preventing sewage odor and backflow of one embodiment of the present invention

Figure 16 is an enlarged cross-sectional view of the air valve rising state of the other embodiment of the configuration of the floor drainage device for preventing sewage odor and backflow of one embodiment of the present invention

17 is a partial cross-sectional view of another embodiment of the opening and closing the enclosure provided with an air valve in the embodiment of the sewer malodor and backflow prevention floor drainage device

18 is a cross-sectional view of another embodiment of the air opening and closing of the embodiment of the sewer malodor and backflow prevention floor drainage device of the present invention

(Short description of symbols for the main parts of the drawing)

40: drain bottom 42: drain pipe 43: bottom layer 44; cement mortar

50: drainage fixture 51: filter plate support ring 52: connector

53: drainage bearing ring 54: drainage enclosure 55: rotating fixing groove

56: ring type fixed packing 57: stainless steel cover member 60: filter plate

61: manure ball

100: an embodiment of the present invention sewage odor and backflow prevention floor drainage

101: drain box 110: drain box housing 111; housing body

112: seat fixing ring 113: housing opening 114; housing fixing flange

115: rotation fixing protrusion 120: drainage tank 121: hemispherical drainage body

122: drainage bottom flange 123: drainage drainage port 124: drainage stationary flange

130: Drain seat 131: Seat body 132: Drain seat ring

140: support shaft holder 141: fixing ring 142: fixing step 143: support

144: support shaft high information 145; support shaft fixing screw hole 146: support shaft fixing groove

150: holder cover 151: covering 152: outer cover flange

153: inner cover flange 154: fixed piece 155: support piece 156: center support piece

160: support shaft 161: fixing member 162: screw portion 163: screw hole

170: pinion fixing tube 171: fixing tube body 172: bottom plate 173: fixing hole

175: left and right pinion 176: pinion shaft

180: lifting operating pipe 181: operating pipe rack 182: ring-type weight

190: opening and closing enclosure 191: upper opening and closing side 192: stepped male thread ring

192a: male thread

193: Opening and closing side 194: Female thread ring 195: Packing support tube

197: Support shaft packing 198: Opening and closing lifting pipe 199: Left and right lifting pipe rack

290: other embodiments open and close enclosures 291,293: in another embodiment, the lower opening and closing

291a: upper opening and closing sides 294, 295: assembly groove 290a: yet another embodiment

311,314: Upper and lower opening and closing cover 312,315: Assembly piece

313: packing fixing hole 314a: opening and closing edge of the stainless steel plate

316: screw 317: packing 320: air valve

321: air opening and closing 322: middle member 323: latch

324: opening and closing rod 330: another embodiment air valve

331: air discharge hole 332: outlet 333: lower opening and closing seat

341 another embodiment tubular air opening 343,344 upper and lower opening and closing valve

345: intermediate member 346: space

390: another embodiment opening and closing enclosure 393: hemispherical lower opening and closing valve

395: Drain 396: Drain 397, 398: Upper and lower opening and closing seat

Claims (6)

A cylindrical housing body detachably fixed to the inside of the drainage fixture of the bottom drain hole communicating with the drain pipe, and a drainage seat fixing ring protruding toward the center of the housing body to form a housing opening. And a drainage housing including a ring-shaped seat body seated in the drain hole seat fixing ring and a ring-shaped packing member of the drain hole extending from the seat body and protruding below the drain hole seat fixing ring through the housing opening. The drainage sheet is provided, and is formed to extend downwardly from the drainage container fixing flange and the drainage container fixing flange which is seated on the upper end of the drainage housing is in close contact with the seat body and the drainage drain opening is formed at the bottom A drain container including a body is provided, and the drain container high A support shaft including a fixing ring seated on a flange, a plurality of supports extending in a center direction inside the fixing ring, and a support shaft high information connected to the plurality of supports and positioned at the center of the fixing ring and having a fixing screw hole formed therein. A drain box having a fixing stand; A straight support shaft which is screwed to the fixing screw hole of the support shaft high information and fixedly supported downward; The inner groove is formed to be extrapolated to the support shaft to be slidable up and down, and the opening and closing the elevating pipe is formed on the outer surface in the left and right symmetric position along the longitudinal direction, and bent outward from the upper end of the opening and closing elevating pipe A packing support tube extending upwardly to form an accommodation space between the support shaft and an outer surface of the support shaft, and surrounding the outer surface of the support shaft to prevent the inflow of sewage into the opening / closing lift tube; Lifting pipe watertight means installed in the receiving space formed between the inner surface of the support pipe, and formed integrally with the upper end of the packing support pipe so that the middle portion is in watertight contact with the inner end of the ring-shaped packing member of the drain hole Hemispherical upper open side and hemispherical lower open side screwed into the watertight structure at the lower end of the upper open side And the housing is opened and closed; A bottom plate is fixedly assembled at the lower end of the support shaft, and pinion fixing tubes are extrapolated concentrically at intervals from the outer surface of the support shaft to the outside of the opening / closing elevating pipe, and penetrated in the axial direction from the side members of the pinion fixing tubes. Rotating freely and protruding inwardly with a predetermined width protruding from the member, the gears protruding inwardly are left and right pinions engaged with the elevating pipe racks, and extrapolated in concentric circles at intervals on the outer surface of the pinion fixing tube. Left and right actuating pipe racks are meshed with the outer gear of the field, and the weight of the pipe is integrally attached to the outer surface to move downward after discharge of the sewage flowing into the drain box, and to move the opening and closing enclosure upwards, thereby Around the inner end of the ring-shaped packing member of the drain Elevating drive device comprising a lifting tube to operate in close contact; Sewer odor and backflow prevention floor drainage, characterized in that formed by. The bottom drainage device of claim 1, wherein the elevating pipe watertight means includes one retainer-type packing member or a plurality of retainer-type packing members stacked up and down. The bottom drainage device for sewage odor and backflow prevention according to claim 1, wherein the upper and lower opening / closing sides are formed by attaching a cover member of a stainless steel plate to the surface in close contact with the cover member. According to claim 1, wherein the upper and lower opening and closing configuration, the cover member of the stainless steel sheet is added in close contact with the surface of the upper and lower sides of the synthetic resin material, the lower opening and closing sides through the packing for the lower end of the upper and the opening sides of the synthetic resin material Bottom drainage device for preventing sewage odor and backflow, characterized in that the lower opening and closing sides of the stainless steel plate is screwed together. According to claim 1, wherein the opening and closing enclosure configuration allows the intake and exhaust flow of air in response to a change in the internal volume in the drainage opening and closing stroke of the opening and closing enclosure, while preventing the inflow of backflow sewage and blocking the inside of the lower opening and closing valve. A bottom drainage device for preventing sewage odor and backflow, comprising an air valve for naturally draining water from the lower end of the lower opening and closing portion. The structure of the air valve according to claim 5, wherein An air outlet hole 331 is provided having a discharge opening 332 formed in the lower center portion of the lower opening side 314a of the stainless steel plate and a lower opening and closing sheet 333 extending in a conical shape to the lower portion of the discharge opening 332. and; Synthetic resin packing, such as flexible rubber material or flexible urethane of the elastic material mounted on the air discharge hole 331, the diameter is smaller than the diameter of the outlet 332, the vertical length is longer than the vertical length of the outlet 332 An intermediate member 322 inserted into the outlet 332 and an inverted conical guide 323 formed at an upper end of the intermediate member 322 and a lower end of the intermediate member 322 to form the lower opening / closing sheet ( The bottom drainage device for sewage odor and backflow prevention, characterized in that formed by the air opening and closing hole 321 having a conical opening and closing bar 324 in contact with the inner surface of the water 333.

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