KR100807744B1 - Connecting structure in sewer and manhole - Google Patents

Abstract

A connecting structure between a sewerage and a manhole is provided to prevent water from flowing out of the ground through a discharging hole by having two caps with discharge holes. A connecting structure between a sewerage and a manhole comprises a casing(110), a liftable cover(130), a caught plate(150), a filtering net(160), an inner tube(120), a first cap(170), and a second cap(180). The casing, which is inserted in a discharge hole, includes four legs(111) and a protrusion(114). The legs have a spiral portion(112) and a curved portion(113). The legs extend downwards and separate the casing from the sewage. The curved portion of the leg is extended from the spiral portion formed at the upper part of the leg. The protrusion of the leg formed along the inner surface horizontally. The liftable cover includes a discharge hole(133), recessions(134), and an interlocking bar(131). The discharge hole is interposed between legs and made of material whose density is lower than water. The recessions are formed around the edge of the cover to guide the cover to move along the legs. The interlocking bar includes a top recessed like a cross and a catching groove(132) cut longer than the spiral portion of the casing along the lateral surface. The caught plate, which is mounted on the protrusion of the casing, includes a blocking plate(151), a support(152), and a first hole(153). The blocking plate closes the discharge hole. The support is installed to support the blocking plate. The hole is bored to let the interlocking bar pass through. The filtering net is mounted on the caught plate and provided with a second hole which is formed to permit the interlocking bar to pass through. The inner tube enters the casing and has a support protrusion at the bottom of thereof. The first cap is located in the inner tube horizontally and provided with a first discharge hole(171). The second cap rotates on the support protrusion in the inner tube, communicates with the first discharge hole, closes the first discharge hole by rotating, moves up and down along the catching groove of the interlocking bar, and has a caught frame. The caught frame receives torque from the interlocking bar and let the second cap rotates.

Description

Connecting structure in sewer and manhole}

1 is a perspective view showing a state of a backflow prevention mechanism forming a connection structure according to the present invention,

Figure 2 is an exploded perspective view showing a state of the backflow prevention mechanism according to the present invention,

Figure 3 is an exploded perspective view showing a coupling between the first and second stopper and the lifting stopper of the backflow prevention mechanism according to the present invention,

4 is a perspective view sequentially showing the interaction between the second stopper and the lifting stopper;

5 to 7 are cross-sectional views showing the operation of the backflow prevention mechanism according to the present invention.

-Explanation of terms for main parts of attached drawings-

100; Backflow prevention device 101; Opening

110; Appearance 111; Bridge

112; Spiral section 113; Bend

114; Locking step 120; shell

121; Support jaw 122; Fixture

130; Lifting stopper 131; Interlocking Bar

132; Locking groove 133; waterspout

134; Moving groove 150; Jam

151; Chapepan 152; support fixture

153; Through hole 160; Strainer

161; Hole 170; The first stopper

171; First drain hole 180; 2nd stopper

181; Second drain hole 183; Hanger

The present invention relates to a connection structure between the sewer and the drain hole.

The sewers in urban areas are installed underground so that the sewage can be drained to the treatment plant and not visible. On the other hand, a drainage hole for draining them so as not to accumulate on the road is connected to the sewer. Of course, the drainage hole is open to the ground.

However, if the rainfall increases rapidly, such as rainy season, the amount of rainwater to be drained increases, and when the amount of rainwater exceeds the drainage capacity of sewers installed in urban areas, rainwater flows back into the sewer instead of through the drainage holes. In the lower centers, urban areas have been introduced to sewage from other areas.

Accordingly, the present invention has been invented to solve the above problems, the technical problem to provide a connection structure of the drain and drain holes to prevent the sewage drained through the sewer to flow back to the ground through the drain hole do.

The present invention to achieve the above technical problem,

It is a tubular shape inserted into the drainage hole, which is spaced apart from the sewer, the upper part of which is formed in a spiral shape spirally and the upper and lower straight bent portion sequentially formed, and the engaging jaw formed on the inner peripheral surface while contacting the upper end of the bent portion Equipped appearance;

A plate-shaped material disposed between the legs and having a density less than that of the water. A moving groove formed along an edge to movably engage with the leg, a drain hole, and a locking groove formed at the top thereof and interlocking bars formed at the center thereof. Retractable stopper provided with;

A locking plate seated and fixed to the locking jaw and including a shielding plate covering and closing the drain hole, a support for fixing the shielding plate, and a through hole through which the interlocking bar penetrates;

A trapping net fixed to the stopping plate and having a hole through which the interlocking bar penetrates;

An inner tube having a support jaw protruding from a lower end of an inner circumferential surface thereof into a tubular shape inserted into the exterior;

A first stopper having a first drain hole formed in a plate shape horizontally fixed to the inner tube; And

A second drain hole formed in a tubular shape rotatably seated on the support jaw of the inner tube and communicating with the first drain hole, and cut in a position to close the first drain hole when rotating; A second stopper having a stopper which is inserted into the locking groove of the interlocking bar and moved upward to receive a rotational force during rotation of the interlocking bar;

The reverse flow prevention mechanism is composed of a connection structure of the drain and the drain hole disposed in the drain hole.

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

1 is a perspective view showing a state of the backflow prevention mechanism constituting the connection structure according to the present invention, Figure 2 is an exploded perspective view showing a state of the backflow prevention mechanism according to the present invention, will be described with reference to this.

The connection structure of the drain and the drain hole according to the present invention is made through the backflow prevention mechanism (100).

The backflow prevention mechanism 100 has a shape that can be inserted into the existing drainage hole 10 as it is, the lower end is formed with a leg 111 for stably supporting the backflow prevention mechanism (100).

In general, since the drainage hole 10 has a circular shape, the embodiment of the backflow prevention device 100 according to the present invention has a circular tubular shape so that the drainage hole 10 can be closely inserted and fixed in the drainage hole 10, and the drainage hole The opening 101 is provided so that the sewage flowing into the cover 11 (see FIG. 5) of the 10 penetrates and is drained to the sewer 20 (see FIG. 5).

The backflow prevention mechanism 100 according to the present invention will be described in more detail.

The reverse flow prevention mechanism 100 has an outer shape 110 having a locking jaw 114 protruding from an inner circumferential surface in a circular tubular shape having a leg 111 at a lower end thereof, and an edge thereof engaged with the leg 111 to move up and down. A liftable stopper 130 fixedly movable to the hook, a catching plate 150 seated on the catching jaw 114, a strainer 160 seated on the catching plate 150, and the appearance ( An inner tube 120 inserted into the 110, a first plug 170 inserted into the inner tube 120, and a second plug 180 rotatably inserted into the inner tube 120.

The exterior 110 is a housing of the backflow prevention mechanism 100, the leg 111 drains the exterior 110 so that the sewage passing through the sewer 20 can flow smoothly without interference with the exterior 110. The support is pushed up to the hole 10. On the other hand, the upper end of the leg 111 disposed on the inner surface of the outer surface 110 is a spiral portion bent in a spiral, bending between the upper end of the spiral portion 112 and the locking jaw 114 straight up and down again It becomes part 113.

The lifting stopper 130 is a flat plate made of a material having a smaller density than water, and the edge thereof is movable with the leg 111 so as to form a moving groove 134 into which the leg 111 is fitted. do. In the embodiment according to the present invention, since all four legs 111 of the backflow prevention mechanism 100, four movable grooves 134 of the lifting stopper 130 are also formed. As a result, the lifting stopper 130 moves from the bottom of the sewer 20 to the inner side of the exterior 110 while moving in the longitudinal direction of the leg 111 according to the change in the water level of the sewage.

5 to 7 is a cross-sectional view showing the operation of the backflow prevention mechanism according to the present invention, will be described with reference to this.

As described above, the lifting stopper 130 is located on the water surface of the sewage in the sewer 20, and when the level of the sewage is increased, the lifting stopper 130 also rises up and pushes up to the spiral portion 112. On the other hand, when the retractable stopper 130 moves to the helical portion 112, the moving groove 134 is continuously engaged with the helical portion 112, so that the moving groove 134 of the retractable stopper 130 is bent in a thread form. It moves along the helical portion 112. That is, the lifting stopper 130 rotates while moving upward along the spiral portion 112.
On the other hand, since the edge of the lifting stopper 130 is caught on the locking jaw 114, even if the water level of the sewage is higher than the locking jaw 114, it does not rise to the height above the locking jaw 114.

On the other hand, the lifting stopper 130 is provided with a drain 133.

Since the lifting stopper 130 is horizontally inserted into the exterior 110, when the lifting stopper 130 is inserted into the exterior 110 and completely engaged, the sewage introduced from the drainage hole 10 toward the sewer 20. You won't be able to come in. Therefore, even if the lifting stopper 130 is inserted into the exterior 110, the drain 133 is formed to allow the sewage flowing from the drainage hole 10 to pass therethrough.

Subsequently, an interlocking bar 131 is placed at the center of the lifting stopper 130. Interlocking bar 131 has a locking groove 132 is formed at the upper end, a more detailed description of the interlocking bar 131 is combined with the second plug 180.

The locking plate 150 is horizontally seated on the locking jaw 114, and includes a support 152 for fixing the shielding plate 151 engaged with the drain hole 133. The support 152 is formed so that the sewage flowing through the drainage hole 10 is not disturbed by the drop, and is formed in the form of a crisscross in this embodiment.

The shield plate 151 is protruded to correspond to the shape and position of the drain port 133 of the lifting stopper 130, it is fixed to the support 152.

After all, as shown in Figures 5 and 6, even if the lift type stopper 130 is raised in accordance with the water level of the sewage is inserted into the exterior 110, there is no problem in the movement of the sewage through the drain 133, Figure As shown in FIG. 7, when the water level is continuously raised and the lifting stopper 130 reaches the locking jaw 114, the lifting stopper 130 rises as it is without rotation along the bent portion 113 and the shielding plate. 151 is engaged with the drain 133. That is, while the drain 133 is closed by the shield plate 151, the movement of sewage is blocked. Of course, both the inflow of sewage through the drainage hole 10 and the reverse flow of sewage introduced from the sewer 20 are blocked.

On the other hand, the center of the locking plate 150 is formed with a through hole 153 through which the interlocking bar 131 can pass. Therefore, as illustrated in FIGS. 6 and 7, the interlocking bar 131 may rise as it is along the water level without being caught by the engaging plate 150.

The strainer 160 is to be seated on the catching plate 150, by filtering various foreign matter from the sewage introduced through the drainage hole 10, to prevent the foreign matter is deposited in the drain 20, strainer Since only 160 may be cleaned, the number of washing operations for removing sludge in the sewer 20 may be reduced.

On the other hand, the strainer 160 is also formed with a hole 161, the interlocking bar 131 can penetrate.

The inner tube 120 is inserted into the exterior 110 to be detachably seated on the strainer 160, and the support jaw 121 protrudes from the bottom of the inner circumferential surface.

The second stopper 180 has a tubular shape in which an upper surface thereof is opened through the second drain hole 181, and is inserted into the inner tube 120 and seated on the support jaw 121. At this time, the second stopper 180 is rotatably fixed.

The first stopper 170 is horizontally fixed to the fixing part 122 of the inner tube 120 in a plate shape opened up and down through the first drain hole 171.

Since the first drain hole 171 and the second drain hole 181 are normally located on the same vertical line as shown in FIGS. 5 and 6, the sewage flowing into the drain hole 10 passes through the sewer ( To 20). However, as shown in FIG. 7, when the water level of the sewer 20 rises, the second plug 180 rotates, so that the first drain hole 171 and the second drain hole 181 are staggered from each other. The first drain hole 171 and the second drain hole 181 are closed by each other so that the flow of sewage is blocked. This is described in detail below.

Figure 3 is an exploded perspective view showing a coupling between the first and second stopper and the lifting stopper of the backflow prevention mechanism according to the present invention, Figure 4 is a perspective view showing the interlocking view of the second stopper and the lifting stopper sequentially It will be described with reference to this.

The second plug 180 has an opening having a second drain hole 181 formed at an upper surface thereof, and a hanging rod 183 having a cross shape at its lower surface thereof. That is, the sewage falling from above flows into the sewer 20 via the second plug 180 without any interference.

Subsequently, the interlocking bar 131 of the retractable stopper 130 is inserted in a sufficient length and has a locking groove 132 having a depth corresponding to the height at which the spiral portion 112 is formed.

Here, the locking groove 132 is engaged with the locking stand 183 is fitted.

In more detail, as shown in Fig. 4 (a), the level in the drain 20 is not usually high, the lifting stopper 130 does not rise, as shown in Fig. 4 (b) Likewise, when the water level in the sewer 20 is increased due to the increase of sewage, the lifting stopper 130 is also raised while the locking stand 183 is fitted into the locking groove 132.
The hanger 183 is formed at the lower end of the second plug 180 having a hollow opened up and down, and is arranged in a cross shape as shown in FIG.
On the other hand, the locking groove 132 is formed so as to be open to the side along the longitudinal direction and the upper surface of the interlocking bar 131, so that the cross-shaped locking bar 183 can be inserted.

Therefore, when the water level continues to increase, the lifting stopper 130 also rises, and the locking groove 132 has a depth corresponding to the height at which the spiral portion 112 is formed, and thus the lifting stopper 130 within the range. The engagement between the locking groove 132 and the locking stand 183 is maintained regardless of the rising and falling of the.

However, since the lifting stopper 130 is rotated by the helical portion 112, the interlocking bar 131 also rotates, and the second stopper 180 rotates while the engaging bar 183 also rotates.

As a result, as described above, the first drain hole 171 and the second drain hole 181 are closed by each other to block the flow of sewage.

For reference, the hanger 183 may be cross-shaped as shown, but is not limited to this may be a straight. Accordingly, the locking groove 132 will also be modified in various ways to cross or straight.

As already mentioned in the technical problem of the present invention, in order to block the discharge of the sewage flowing back to the sewer 20 to the ground through the drainage hole 10 during the rainy season, the lifting plug 130 Primary blocks backwater sewage. However, since a large amount of sewage flowing into the drainage hole 10 is filled above the lifting cap 130, the water pressure that the lifting cap 130 must support is never small. Therefore, the first plug 170 and the second plug 180 are further disposed to share the pressure.

That is, the first and second stoppers 170 and 180 flow into the drainage hole 10 to support the hydraulic pressure of the sewage filled on the first and second stoppers 170 and 180, and the lifting stopper 130 is formed of the first and second stoppers 170 and 180. Supports the water pressure of the sewage filled between the 1,2 stopper (170, 180) and the lifting stopper 130, to prevent all the water pressure of the sewage flowing into the drain hole 10 to be concentrated to the lifting stopper (130) do.

On the other hand, when the reverse flow prevention mechanism 100 according to the present invention to be separated from the drainage hole 10 to remove the sludge of the sewer 20, the inner tube 120, the strainer 160 and from the exterior 110 Easily disassemble the locking plate 150 to easily separate through the opening 101, and when the sludge removal is completed, the locking plate 150, the strainer 160 and the inner tube 120 is the opening of the exterior 110 Since it is necessary to insert sequentially into 101, management is easy.

According to the present invention as described above, due to the sudden increase in the amount of sewage during the rainy season, the sewage passing through the sewer is prevented from being discharged to the ground, and if the drainage is stable, the drainage proceeds quickly so that a stable sewage treatment can be made. It works.

Claims (1)

A tubular shape inserted into the drainage hole, which is spaced apart from the sewer by four legs protruding downward, the upper portion of the leg is formed in a spiral helical portion and straight up and down, and the bent portion connected to the upper end of the spiral portion is formed sequentially Appearance having a locking projection protruding horizontally along the inner circumferential surface to connect the upper end of the bent portion; A plate is formed between the legs and is made of a material less dense than water, and has a drain opening that is vertically opened. Four moving grooves, each movably engaged with the four legs, are formed along an edge, and the upper surface is crosswise. A lifting stopper which is opened in a center shape and has an interlocking bar having a locking groove formed along the side surface of the spiral portion and cut into a length of the spiral portion; A locking plate seated and fixed to the locking jaw and including a shielding plate covering and closing the drain hole, a support for fixing the shielding plate, and a through hole through which the interlocking bar penetrates; A trapping net fixed to the stopping plate and having a hole through which the interlocking bar penetrates; An inner tube having a support jaw protruding from a lower end of an inner circumferential surface thereof into a tubular shape inserted into the exterior; A first stopper having a first drain hole formed in a plate shape horizontally fixed to the inner tube; And A second drain hole formed in a tubular shape rotatably seated on the support jaw of the inner tube and communicating with the first drain hole, and cut in a position to close the first drain hole when rotating; A second stopper having a locking bar protruded horizontally in a cross shape so as to be inserted into the locking groove of the interlocking bar and moved upward to receive a rotational force during rotation of the interlocking bar; Connection structure of the drain and the drain hole, characterized in that the backflow prevention mechanism made of a drain hole.

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