KR20060025989A - Gathering drainage box earth sand inflow shutoff apparatus - Google Patents

Abstract

  The present invention relates to a sediment inflow prevention device of the dust collector, to prevent the phenomenon that the sewage is increased in the early stages of sewage by preventing the downward phenomenon by firmly cracking down the rear of each rotary opening and closing plate through the stop bar in the early stage when sewage increases due to rainwater. This is to prevent the inflow to. And it is provided on the discharge side of the sewage, the sewage collector conduits including one or more sewage inlet hole, comprising a sewage inlet frame surrounding the circumference of the sewage inlet, and is vertically fixed at the inner bottom of the house conduit to be fixed and drainage is possible A frame having both sides open, a rotating shaft provided transversely inward of the sewage inflow frame, and each rotating opening and closing plate provided at an upper portion of the rotating shaft to open and close the inner side of the sewage inflow frame according to the amount of sewage; A stop bar integrally provided with a frame at a rear lower portion of the rotary shaft to control the rear opening angle of each rotary opening and closing plate, and a circumference of the sewage inlet frame at the front or rear of the rotary shaft to close the rotary opening and closing plate. It is characterized by consisting of one or more leveling stopper to control the state.

Description

Earthing inflow prevention device of dust collector {Gathering drainage box earth sand inflow shutoff apparatus}

1 is a perspective view showing a sewer having a soil inflow prevention apparatus according to a first embodiment of the present invention.

Figure 2 is an enlarged perspective view showing a soil inflow prevention apparatus according to a first embodiment of the present invention.

3 is an enlarged cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view taken along the line B-B in FIG.

5 is a schematic cross-sectional view for explaining the operation of the soil inflow prevention apparatus of the first embodiment of the present invention.

Figure 6 is a cross-sectional view showing another embodiment of the horizontal holding stopper according to the present invention.

7 is a cross-sectional view showing a soil inflow prevention apparatus according to a second embodiment of the present invention.

Figure 8 is a cross-sectional view showing another embodiment of the front, rear weight according to the present invention.

9 is a cross-sectional view showing a soil inflow prevention apparatus according to a third embodiment of the present invention.

10 is a cross-sectional view showing a soil inflow prevention apparatus according to a fourth embodiment of the present invention.

Figure 11 is a schematic cross-sectional view for explaining the operation of the conventional soil inflow prevention device.

<Explanation of symbols for the main parts of the drawings>

1: sewer

    11: blocking wall

         111: screen

2: tea house

    21: Sewage Inflow Hall

    22: blocking diaphragm

    23: index plate,

         231: protrusion plate, 232: rubber

3: axis of rotation

    31: connection means

         311: bearing bracket, 312: bearing

    32: Bearing

4: each rotary opening and closing plate

5: frame

    51: Sewage Inflow Frame

    52: stop bar

         521: horizontal belt, 522: internal draw frame

6: leveling stopper

    61: home

    62: protruding jaw

    63: protruding end

         631: recessed groove

7: rear weight

    71: nut

         711: tap hole

    72: spiral axis

8: front weight

    81: nuts

         811: tap hole

    82: spiral axis

The present invention relates to a sediment inflow prevention device of the conduit, more specifically, the sediment inflow of the sewer to the sewer to prevent the inflow of sediment into the sewer in the sewage when the amount of sewage flowing into the sewer increases due to rainwater. It relates to a prevention device.

The general sewage system refers to a passage for collecting and draining a large amount of sewage, and the discharge side is usually connected to the river.

In other words, the sewage is generally known, including a drainage pipe to guide the sewage treatment plant to be provided on the discharge side to purify the sewage, the earth and sand included in the sewage is provided at a constant height in the rear of the drainage pipe to the drainage It also includes a barrier that prevents entry and filters out constrictions.

And the collection conduit is to be provided in the transverse direction at the bottom with respect to the longitudinal sewer to include an upper opening penetrating the sewer. In addition, the upper opening is divided into a plurality of longitudinal forms, and a plurality of blocking diaphragms are provided at intervals, and a plurality of sewage inflow holes including both side vertical bands are formed between the blocking diaphragms.

In addition, the barrier wall is composed of a screen that is provided between the walls and the plurality of walls to prevent the passage of the earth and sand to filter the constriction contained in the sewage to be introduced into the collecting pipe.

However, in the conventional sewage system configured as described above, when there is a large amount of inflow of sewage due to rainwater, the earth and sand flows directly into the collecting duct through the barrier wall. Therefore, the soil was accumulated in the drainage house, the drainage cross-section of the drainage house is reduced, as well as the sediment flow into the sewage treatment plant had a problem of reducing the purification efficiency of the sewage treatment.

Thus, in order to solve the problems as described above, there is known a soil inflow prevention device for preventing the inflow of soil to the rain pipe in rainy weather, when the following description of the various soil inflow prevention device.

First, "Soil inflow prevention device" (hereinafter, referred to as "soil inflow prevention device of the first embodiment") of the Republic of Korea Utility Model Registration No. 1999-18530 is known.

That is, the conventional soil inflow prevention apparatus of the first embodiment is provided in the sewage inlet hole constituting the drainage can be opened and closed through the rear fixed shaft and the frame plate including the sewage inlet, and the inside of the dust collector that is the lower portion of the inlet hole. And a spring device installed between the front of the frame plate and the support, and a sewage inflow prevention plate installed at a lower portion of the frame plate to block a sewage inlet when the frame plate is closed.

Therefore, the soil inflow prevention device configured as described above, in general, the front of the frame plate is inclined to the rear downward through the spring force of the spring device, the sewage passing at a constant flow rate is passed through the sewage inlet and sewage through the sewer pipe To the treatment plant. In case of rain, as the inflow of sewage increases, the sewer inlet is blocked while the frame plate is kept horizontal. Therefore, in rainy weather, the sewage flowing in with the soil is discharged directly into the river without entering the dwelling.

However, the soil inflow prevention apparatus of the first embodiment configured as described above is a device that opens and closes the frame plate by using the spring force of the spring device. When it is used for a long time, the restoring force of the spring device is lost and cannot function properly. Had a problem.

In addition, there is a problem that the spring device is provided in the interior of the tea house so that it is easily corroded within a short time as it is always in contact with the sewage.

Thus, in order to solve the above problems, conventionally known as "soil inflow prevention device" of the Republic of Korea Utility Model Registration No. 2001-1706 (hereinafter referred to as "soil inflow prevention device of the second embodiment") is known.

That is, the conventional soil inflow prevention apparatus of the second embodiment is characterized in that the support provided in the circumference of the sewage intake hole of the collecting pipe and the frame plate is provided in the middle front of the support inclined through the pivot.

Therefore, the soil inflow prevention device configured as described above, as the frame plate is inclined so as to open the rear in usual times, the sewage that passes at a constant flow rate is introduced into the collecting pipe is led to the sewage treatment plant. In case of rain, as the inflow of sewage increases, the front of the frame plate is lowered and leveled, so that the sewage flowing in with the soil is discharged into the river without being introduced into the collecting pipe.

By the way, the soil inflow prevention apparatus of the conventional second embodiment configured as described above, as shown in Figure 11, the frame plate 30 is inclined around the rotating shaft 20 as the amount of sewage is constant in the rear as usual It remains open (marked with a solid line).

However, in the rainy season when the sewage is rapidly increasing, the amount of sewage is instantaneously increased. At the moment when the sewage is rapidly increased, a large amount of sewage collides with the lower part of the frame plate 20 and flows into the collecting pipe 10 at the same time. As it occurs, the frame plate 30 is momentarily maintained in a substantially vertical state (indicated by a dashed dashed line).

Then, after the sewage is completely filled in the collecting pipe, a large amount of sewage flowing into the collecting pipe is pressed in a straight line to press the upper portion of the frame plate 30. Therefore, after elapse of time at the moment when the amount of sewage increases, the frame plate 30 is changed to a horizontal state to block the sewage inflow pipe.

Therefore, the sewage volume is increased due to rainwater in the early stage of the sewage with the sewage collected into the conduit 10 had a problem that occurs.

Therefore, the present invention was invented to solve the problems as described above, by preventing the phenomenon of firmly cracking down the rear of each rotating opening and closing plate through the stop bar at the beginning of the sewage amount is increased due to the excellent, the initial sewage amount is increased It is an object of the present invention to provide a soil inflow prevention device to prevent the soil from entering into the house.

In addition, the stop bar is integrally formed with the frame fixed to the collecting pipe passage to support each rotation opening and closing tightly, there is also an object to prevent the phenomenon of the back of each rotation opening and closing plate damaged by the water pressure of the sewage. .

In addition, there is also an object to smoothly inflow of sewage pipes in the usual way by mounting the rotary shaft to the front side to make the rear of each rotary switchboard heavy.

In addition, the rear lower portion of each rotary opening and closing plate is provided with a separate rear weight which can be replaced or load adjusted, so that the closing force of each rotary opening and closing plate can be adjusted to correspond to the change in the amount of sewage due to rain. There is also an object to always open the rear of each rotary opening and closing plate.

In addition, by mounting the bearings at both ends of the rotary shaft as well as the connecting portion between the rotary shaft and each rotary opening and closing plate, there is also an object to enable each rotary opening and closing plate sensitive and precise operation against changes in the amount of sewage.

The present invention for achieving the above object, provided in the discharge side of the sewage and the sewage collection pipe for one or more sewage inlet, including a sewage inlet frame surrounding the circumference of the sewage inlet, Vertically fixed in the frame and open to both sides to allow drainage, the rotating shaft provided in the transverse direction in the inner side of the sewage inlet frame, and the upper portion of the rotary shaft provided in the sewage inlet frame according to the amount of sewage Each rotary opening and closing plate for opening and closing the inside of the rotation shaft, a stop bar provided integrally with the frame at the rear lower portion of the rotary shaft to control the rear opening angle of the rotary opening and closing plate, and the circumference of the sewage inflow frame at the front or rear of the rotary shaft It is provided with at least one horizontal holding stopper to control the closed state of each rotation opening and closing plate To be characterized.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a sewer having a sediment inflow prevention apparatus according to a first embodiment of the present invention, Figure 2 is an enlarged perspective view showing a sediment inflow prevention apparatus according to a first embodiment of the present invention, Figure 3 Is an enlarged cross-sectional view taken along the line AA of FIG.

First, the earth and sand inflow prevention apparatus of the present invention is provided on the discharge pipe of the sewer (1) and is provided in the collecting conduit (2) including one or more sewage inflow holes (21), in particular in the rain when the sewage inflow hole 21 Soil is to prevent the inflow of soil. And the sewage inlet hole 21 is formed at intervals at the open portion of the upper portion of the collecting pipe (2). That is, the sewage inlet hole 21 is provided with a plurality of longitudinal bands at an open portion at intervals, and is provided between a plurality of blocking diaphragms 21 covering the intervals between the vertical bands. Therefore, the circumference of the sewage inflow hole 21 includes a longitudinal belt provided on both sides and an upper portion of the front and rear walls constituting the collecting conduit 2, hereinafter, the sewage inflow hole 21 or the sewage inflow hole 21. In the description of the perimeter, the detailed description thereof will be omitted.

Thus, the earth and sand inflow prevention device of the present invention includes a sewage inflow frame 51 surrounding the circumference of the sewage inflow hole 21 and is vertically fixed at the inner bottom surface of the house conduit 2 so that both sides are open to allow drainage. Frame 5, the rotary shaft 3 provided in the transverse direction in the inner side of the sewage inflow frame 51, and the sewage inflow frame (30) provided in the upper portion of the rotary shaft (3) 51, a stop for interlocking the rear opening angle of each of the rotary opening and closing plate 4, and integrally provided with the frame 5 at the rear lower portion of the rotary shaft (3) for opening and closing the inside of the rotary shaft (3). It is composed of a bar 52, and one or more horizontal holding stopper (6) provided around the sewage inlet frame (51) in front or rear of the rotary shaft (3) to control the closed state of each rotary opening and closing plate (4) It is characterized by.

That is, the frame 5 is configured in the shape of a rectangular parallelepiped by connecting a plurality of horizontal and vertical frames. Therefore, by sufficiently supporting the rotation shaft 3 and each rotation opening and closing plate 4 and firmly fixing the stop bar 52, the rotation shaft 3 or the stop bar 52 during operation of each rotation opening and closing plate 4. It is possible to prevent failures such as changing the position or bending of.

In particular, the stop bar 52 is supported through a plurality of internal drawing frame 522 integrally provided with the frame 5 and is provided in the transverse direction at the rear lower portion of the rotary shaft 3 to open and close the rotatable plate. It is comprised by the horizontal belt | shaft 521 supporting (4). That is, the horizontal bar 521 is firmly supported by the internal drawing frame 522 integrally formed with the frame 5, so that the rear of each rotary opening and closing plate 4 is bent or bent due to the water pressure of the sewage. It can prevent.

And the rotating shaft (3) is fixed through the connecting means 31 in the middle of each rotation opening and closing plate (4). Therefore, the rear of each rotary opening and closing plate 4, the middle of which is fixed to the rotating shaft 3, can be opened only by the weight of the inflowing sewage. However, in the accompanying drawings, an embodiment in which the rear weight 7 is further provided is illustrated.

In addition, the horizontal holding stopper (6) is composed of a groove (61) formed so that the front end of each rotation opening and closing plate (4) is caught in the front upper end around the sewage inlet frame (51).

In addition, one or more rear weights 7 are further provided at the rear lower portion of each rotary opening and closing plate 4 to adjust the closing force of each rotary opening and closing plate 4 according to the amount of sewage. That is, the rear weight 7 is provided to be replaceable through a connecting means such as a ring so as to add or subtract the weight as needed.

In addition, the rear weight (7) also serves to open the rear of each rotary opening and closing plate 4 by always pulling the rear of each rotary opening and closing plate 4 downward.

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3, wherein bearings 32 smoothly rotate the rotation shaft 3 between both ends of the rotation shaft 3 and both sides of the sewage inlet frame 51.

In addition, the connecting means 31 is composed of one or more bearing brackets 311 in which the rotating shaft 3 is rotatably assembled and fixed to the lower portions of the respective rotation opening and closing plates 4. That is, the rotary shaft 3 is smoothly rotated by assembling through the bearing 312 included in the bearing bracket 311.

Therefore, as described above, the bearings 32 and 312 are provided at both ends of the rotary shaft 3 as well as the connecting means 31, so that each rotation opening and closing plate 4 can be rotated sensitively to the change in the amount of sewage. The failure due to non-rotation of the rotary switchboard 4 can be prevented in advance.

On the other hand, reference numeral 11 denotes a "blocking wall" which is provided at a constant height at the rear of the collecting pipe 2, which is the sewer 1, to prevent the soil contained in the sewage flowing into the collecting pipe 2, Reference numeral 111 denotes a "screen" included in the barrier wall 11 to physically filter the sewage.

Hereinafter, the operation relationship of the soil inflow prevention apparatus of the first embodiment configured as described above is as follows.

5 is a view for explaining the operation of the soil inflow prevention apparatus of the first embodiment of the present invention, the rear of each rotary opening and closing plate 4 provided in the sewage inlet frame 51 is normally in an open state (indicated by a solid line). As it is maintained, the sewage flowing in a certain amount is passed through the sewage inlet frame 51 and flows into the collecting pipe 2 to be discharged to the sewage treatment plant.

On the contrary, in the early stage of rain fall, a large amount of sewage containing earth and sand is instantaneously introduced into the opening portion behind each rotary opening and closing plate 4, and the rear of each rotary opening and closing plate 4 is a stop bar 52. The back of each rotation opening and closing plate 4 is no longer rotated downward as it is firmly supported by the horizontal bar 521 constituting the bottom.

Therefore, the sewage mixed with a large amount of earth and sand is moved from the rear of each rotary switchboard 4 directly to the upper part of each rotary switchboard 4 so as to press the upper part of each rotary switchboard 4 downward, thereby opening and closing each rotary switchboard. The plate 4 is quickly changed to a horizontal state (indicated by a double-dotted line) to close the sewage inlet frame 51 of the collecting pipe 2.

Therefore, by preventing the inflow of sediment into the drainage corridor 2 in the early stage of rainwater, when the amount of sewage increases momentarily, it prevents the cross-sectional area of the drainage conduit 2 due to the inflow of sediment and of course the inflow of sediment into the sewage treatment plant. It can be prevented.

As shown in FIG. 3, the closing force of each rotation opening and closing plate 4 may be adjusted by replacing the rear weight 7 provided at the rear lower portion of each rotation opening and closing plate 4.

Therefore, by adjusting the closing force of each rotary opening and closing plate 4 as described above, it is possible to take a quick action corresponding to the change in the amount of sewage, it is also possible to use the device compatible regardless of the amount of sewage.

In addition, Figure 6 shows another embodiment of the horizontal holding stopper according to the present invention, in the first embodiment, the horizontal holding stopper 6 is provided with a protruding portion in the rear upper portion around the sewage inlet frame 51 Consisting end portion 63, the protruding end portion 63 is composed of a horizontal plate of a constant width and a plurality of recessed groove portion 631 is formed in front of the horizontal plate to facilitate the inflow of sewage will be.

Accordingly, the protruding end portion 63 may press the rear upper portion of each rotation opening and closing plate 4 in rainy weather to maintain each rotation opening and closing plate 4 horizontally. And the recessed groove portion 631 formed in the front serves as a guide to allow the sewage to smoothly flow into the collecting pipe (2).

7 is a view illustrating a soil inflow preventing apparatus according to a second embodiment of the present invention. In the configuration of the first embodiment, the closing force according to the amount of sewage may be adjusted even in the front lower portion of each of the rotary opening and closing plates 4. It is characterized in that one or more front weights 8 are further provided.

Therefore, when the front weight 8 is provided in the lower portion of the front as described above, the closing force of each rotation opening and closing plate 4 can be adjusted by easily replacing the front weight 8 from the outside.

On the other hand, Figure 8 shows another embodiment of the front, rear weight according to the present invention, the rear weight 7 of another embodiment according to the present invention, each of the rotary opening and closing plate to be provided with a tab hole 711 in the longitudinal direction The falling weight of the rear weight (7) around the rotating shaft (3) by adjusting the front and rear positions are fastened in the longitudinal direction to the nut (71) and the tab hole (711) fixed to the (4) It is characterized by consisting of a spiral shaft 72 for changing.

Therefore, the falling weight of the rear weight 7 around the rotating shaft 3 can be varied by adjusting the front and rear positions by rotating the spiral shaft 72. Therefore, the closing force of each rotary opening and closing plate 4 can be easily adjusted to correspond to the change in the amount of sewage.

In addition, the front weight 8 of another embodiment according to the present invention, the nut 81 is fixed to each of the rotary opening and closing plate 4 so that the tab hole 811 is provided in the longitudinal direction, and the tap hole 811 It is characterized in that it consists of a spiral shaft 82 which is fastened in the direction to change the falling weight of the front weight (8) around the rotating shaft (3) by adjusting the position of the front and rear.

Therefore, by rotating the spiral shaft 82 to adjust the position of the front and rear, the falling weight of the front weight (8) around the rotating shaft (3) can be varied. Therefore, the closing force of each rotary switchboard 4 can be adjusted to correspond to the change in the amount of sewage.

9 shows a sediment inflow prevention apparatus according to a third embodiment of the present invention, first, the earth and sand inflow prevention apparatus of the third embodiment according to the present invention is a rotary shaft (3) for supporting each rotation opening and closing plate (4) Except for the above, it is assumed that other configurations are the same as those of the first and second embodiments described above.

Thus, in the earth and sand inflow prevention apparatus of the third embodiment according to the present invention, the rotary shaft 3 supporting each rotary opening and closing plate 4 is fixed to the intermediate front of each rotary opening and closing plate 4 through a connecting means 31. It is characterized by.

Therefore, the rotation shaft 3 is mounted to be biased forward with respect to each rotation opening and closing plate 4 so as to make the rear of each rotation opening and closing plate 4 heavy so that the open state of each rotation opening and closing plate 4 is normally stabilized. It has the advantage that it can be maintained.

10 is a cross-sectional view showing a sediment inflow prevention device according to a fourth embodiment of the present invention, the circumferential end of the sewage inflow framework 51 is provided at both side ends and the front end forward with respect to the rotary shaft (3) Protrusion plate 231 so that the front circumference of the lower surface of each rotary opening and closing plate 4 can be in close contact to prevent the sewage to the sewer to flow into the collecting pipe (2) when the rotary opening and closing plate 4 is rotated in a closed state ) And a water stop plate 23 composed of rubber 232 is further provided, and is provided at both ends and the front end which are rearward with respect to the rotation shaft 3, and each rotation opening and closing plate 4 is rotated in a closed state. (2) further provided with a water stop plate 23 composed of a protrusion plate 231 and a rubber 232 so that the rear circumference of the upper surface of each rotary opening and closing plate 4 can be closely contacted to prevent the sewage into the sewer. It is characterized by being.

Therefore, by closing the rotation opening and closing plate 4 in a rainy season during the rainy season, such that the rain can be sealed, it is possible to prevent the sewage mixed with sewage in the rainy season inflow into the dwelling.

As described above, the present invention prevents the sedimentation of sedimentation pipes due to rainwater to prevent the sedimentation of the cross-section of the sewage pipes due to the inflow of sediments, as well as preventing the sedimentation of sediments from the sewage treatment plant. It is to have the effect of preventing.

In addition, the stop bar is firmly supported to the rear of each rotary opening and closing plate to prevent damage to the rear of each rotary opening and closing plate due to the water pressure of the sewage, there is an effect that can maximize the life of the device.

In addition, the rear of each rotary opening and closing plate is heavy to have an effect that can smoothly flow into the sewer drainage.

In addition, by replacing or adjusting the rear weight of each rotary switchboard, the closing force of each rotary switchboard is adjusted to correspond to the change in the amount of sewage due to rainwater, so that quick measures can be taken to correspond to the change of the amount of sewage. Of course, the device can be used interchangeably, and in addition, the rear side of the rear additional rotation switchboard is normally opened, so that the sewage can smoothly flow into the garage.

In addition, it is also possible to prevent the failure caused by the non-rotation of each of the rotation opening and closing plate by allowing each rotation switching plate to operate sensitively to the change of sewage amount.

While the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims (13)

In the sewer drainage conduit 2, which is provided on the discharge side of the sewer 1 and includes one or more sewage inflow holes 21, A frame 5 including a sewage inflow frame 51 surrounding the circumference of the sewage inflow hole 21 and standing vertically at an inner lower surface of the house conduit 2 and being open at both sides to allow drainage; Rotating shaft (3) provided in the transverse direction in the inner side of the sewage inlet frame (51), Each rotary opening and closing plate 4 which is provided on the upper portion of the rotary shaft 3 to open and close the inside of the sewage inflow frame 51 according to the amount of sewage, A stop bar 52 integrally provided with the frame 5 at the rear lower portion of the rotation shaft 3 to control the rear opening angle of the rotation opening and closing plates 4, and The sewer intake is characterized in that it comprises one or more horizontal maintenance stopper (6) provided around the sewage inlet frame (51) in front of or behind the rotary shaft (3) to control the closed state of each rotary opening and closing plate (4). Earth and sand intrusion prevention device. The method of claim 1, wherein the stop bar 52, It is supported by a plurality of internal drawing frame 522 integrally provided with the frame (5) and is provided in the transverse direction at the rear lower portion of the rotating shaft (3) horizontal type to firmly support the temporary rotation opening and closing plate (4) Soil inflow prevention device of the tea house, characterized in that consisting of a stand (521). The method of claim 1, wherein the rotating shaft 3, The earth and sand inflow prevention device of the tea house, characterized in that fixed through the connecting means 31 in the middle of the rotation opening and closing plate (4). The method of claim 1, wherein the rotating shaft 3, The sediment inflow prevention device of the tea house, characterized in that fixed through the connecting means 31 to be biased toward the middle forward of the respective rotation opening and closing plates (4). The method of claim 1, wherein the horizontal stopper (6), The sediment inflow prevention device of the tea house, characterized in that consisting of a groove (61) formed so that the front end of the rotary opening and closing plate (4) is caught in the front upper end of the sewage inlet frame (51). According to claim 1, wherein the horizontal holding stopper (6) is composed of a protruding end portion (63) protruding to the rear upper end around the sewage inlet frame (51), The protruding end portion 63 is composed of a horizontal plate of a constant width, the soil inlet prevention device, characterized in that a plurality of recessed groove portion 631 is formed to facilitate the inflow of sewage. According to claim 1, At the peripheral end of the sewage inlet frame 51, Each rotation opening and closing is provided at both ends and the front end that is forward with respect to the rotating shaft 3 to prevent the sewage into the sewer pipe into the sewer pipe 2 when the rotary opening and closing plate 4 is rotated in a closed state. The water discharge plate 23 made of a protrusion plate 231 and a rubber 232 is further provided so that the front circumference of the lower surface of the plate 4 can be closely adhered thereto. Each rotation opening and closing is provided at both ends and the front end that is rear with respect to the rotation shaft (3) to prevent the sewage into the sewer pipe into the sewer pipe (2) when the rotation opening and closing plate (4) is rotated in a closed state An earthquake inflow prevention device of a dust collector, characterized in that the water discharge plate 23 made of a protrusion plate 231 and a rubber 232 so as to be in close contact with the rear circumference of the upper surface of the plate (4). 8. The apparatus of claim 1, wherein one or more rear weights are further provided on the rear lower portion of each of the rotary opening and closing plates. 9. The method of claim 8, wherein the rear weight (7), A nut 71 fixed to each of the rotation opening and closing plates 4 so that the tab holes 711 are provided in the longitudinal direction; It is fastened to the tab hole 711 in the longitudinal direction characterized by consisting of a spiral shaft 72 for varying the falling weight of the rear weight (7) around the rotating shaft (3) by adjusting the position of the front and rear Earth and sand inflow prevention device of the tea house. [9] The apparatus of claim 8, wherein one or more front weights (8) are further provided on the front lower portion of each of the rotary opening and closing plates (4). The method of claim 10, wherein the front weight (8), A nut 81 fixed to each of the rotation opening and closing plates 4 so that the tab hole 811 is provided in the longitudinal direction; It is fastened to the tab hole 811 in the longitudinal direction, characterized in that it consists of a spiral shaft 82 for varying the falling weight of the front weight (8) around the rotating shaft (3) by adjusting the position of the front and rear Earth and sand inflow prevention device of the tea house. 8. The bearing 32 according to any one of claims 1 to 7, further comprising a bearing 32 for smoothly rotating the rotation shaft between both ends of the rotation shaft 3 and both sides of the sewage inlet frame 51. Earth and sand inflow prevention device of tea house. The method of claim 12, wherein the connecting means 31, An earthquake inflow prevention device of a tea house, characterized in that the rotating shaft (3) comprises a bearing 312 rotatably assembled, and is composed of one or more bearing brackets (311) fixed to the lower portion of each rotary opening and closing plate (4). .

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