KR100836849B1 - Sewage Backflow Prevention Device with Removable Switch - Google Patents

Abstract

An apparatus for preventing reverse flow of sewage with a removable check valve switch is provided to removed the sewage from an inlet of a body part by separating a check valve switch from a guide rail even the check valve switch is not rotated upward. An apparatus for preventing reverse flow of sewage comprises a body part, and a check valve switch(300). The body part has an inlet and an outlet. The check valve switch, mounted in the body part, is mounted at the inlet to open the inlet according to inlet power of sewage and to close the inlet by pressure of the sewage. The body has an opening part to insert the check valve switch in the body part. The check valve switch is detachable to the body part through the opening part. The check valve switch includes a check valve plate(41), a hinge part(42), a watertight member(43), a protrusion(44), and a detachable rod(45). The hinge part is combined at the upper part of the check valve plate. The watertight member is combined at the upper part of the hinge part. The protrusion is combined at the watertight member to support the check valve switch. The detachable rod is combined at the upper part of the protrusion. The section of the watertight member is trapezoid. The watertight member is made of rubber.

Description

Apparatus for preventing reverse flow of drainage with removable check valve}

1 is a schematic diagram showing a state in which a conventional sewage backflow prevention device is installed and operated in the drain pipe.

Figure 2 is a schematic diagram showing another state in which the conventional sewage backflow prevention device is installed and operated in the drain pipe.

Figure 3 is a perspective view of the sewage backflow prevention device according to the invention.

Figure 4 is a front view of the removable reverse valve switch mounted on the sewage backflow prevention device according to the invention.

Figure 5 is a side view of the removable reverse valve switch mounted on the sewage backflow prevention device according to the invention.

6 is an A-B cross-sectional view of the sewage backflow prevention device shown in FIG.

7 is a schematic diagram showing a state in which a sewage backflow prevention device is installed on a discharge port side of a sump well according to one embodiment of the present invention;

※ Explanation of code about main part of drawing ※

100: sewage backflow prevention device 200: body

300: soft switch 31: inlet

32: opening 33: guide rail

41: check plate 42: hinge portion

43: watertight member 44: protruding jaw

45: removable rod

The present invention relates to a sewage backflow prevention device, and more particularly, to a sewage backflow prevention device capable of easily dredging soil such as sludge accumulated in the sewage backflow discharge device by installing a removable reverse displacement switch in the sewage backflow prevention device. It is about.

In general, during the rainy season, heavy rains, or overcrowded areas in summer, the floodwater flows into the drainage pipe at a moment's time and the water level rises. .

In order to solve such a problem, Korean Utility Model Registration No. 0168154 discloses a technique related to a "sewage backflow prevention device of a drain pipe."

1 and 2 corresponds to FIGS. 4 and 5 disclosed in the above-described Utility Model Utility Model No. 0168154, which is a schematic view showing a conventional sewage backflow prevention device installed and operated in a drain pipe.

As shown in FIG. 1, sewage is introduced into the drain pipe 4 through the drain 7, and thereafter, a sewage backflow discharge device 1 provided between the drain pipe 4 and the drain pipe 4 ′. In this case, the reverse switch 8 of the sewage backflow prevention device 1 is rotated upward by the water pressure of the introduced sewage, and as a result, the introduced sewage is externally discharged through the drain pipe 4 '. Will be discharged.

On the other hand, when the pressure of the sewage flowed in from the drain 7 falls below a certain level, the reverse shift switch 8, which has been rotated upwards, is rotated downward by gravity to block the outlet 6. Accordingly, even if the sewage flowing through the drain pipe 4 'is reversed, the inflow of sewage is blocked by the reverse displacement switch 8, so that the odor of the reversed sewage or sewage is discharged to the drain pipe 4 and the drain 7. To prevent them from entering the building.

On the other hand, when a large amount of dirt, such as sludge is deposited inside the sewage backflow prevention device, even if sewage flows in through the drain pipe 4 as shown in Figure 1, the reverse displacement switch 8 is rotated upwards On the contrary, the sewage introduced through the drain pipe 4 may not be discharged to the outside through the drain pipe 4 'and may flow backward in the direction of the drain hole 7. In addition, according to such a problem, it is necessary to dredge the internal dirt of the sewage backflow prevention device, if necessary, but all of the reverse valves mounted on the conventional sewage backflow prevention device are hinged upper part is fixed in the sewage backflow discharge device. It is configured to not be separated, even if you want to discharge the waste in the sewage backflow prevention device to the outside through the outlet (6) there was a problem that is not easy to discharge the waste due to the reverse switch (8).

In addition, improved utility sewerage prevention device is also disclosed in Registered Utility Model Publication No. 0260319, Registered Utility Model Publication No. 0328176, Registered Utility Model Publication No. 0333348, and the like. As with 0168154, the reverse displacement switch is fixed in the sewage backflow prevention device so that it cannot be separated and still contains the above-mentioned problems.

The present invention is to solve the above-mentioned problems, an object of the present invention is to provide a sewage backflow prevention device that can facilitate the dredging of the dirt deposited therein by detachable configuration of the reverse displacement switch installed in the sewage backflow prevention device. To provide.

In addition, another object of the present invention is to provide a sewage backflow prevention device that can be easily installed and separated from the reverse switching switch even if the sewage backflow prevention device is not seen by the sewage introduced into the sump.

In order to achieve the object of the present invention as described above, the sewage backflow prevention device according to the present invention includes a body portion having an inlet and an outlet; And a reverse shift switch mounted inside the body to be mounted on the inlet side to open the inlet according to the inlet pressure of the sewage and to close the inlet by the pressure of the sewage flowing back or the body. The upper side is provided with an opening for inserting the reverse switching unit into the body portion, the reverse switching unit is characterized in that detachable to the body portion through the opening.

Preferably, the check valve comprises a check plate having a larger shape than the inlet; A hinge portion coupled to an upper side of the check plate to enable vertical movement of the check plate; A watertight member coupled to an upper side of the hinge portion and increasing in thickness in an upward direction; A protruding jaw coupled to the watertight member to support the reverse switching unit on an upper side of the body portion; And a detachable rod coupled to an upper side of the protruding jaw to enable insertion and detachment of the reverse shift switch from the outside of the body portion.

Preferably, the cross section of the watertight member is trapezoidal in shape.

Preferably, the check plate further comprises a watertight member made of a predetermined rubber material on the side facing the inlet.

Preferably, the body portion further includes a protruding jaw inside the body portion along one side of the opening, wherein the watertight member of the reverse switching switch inserted through the opening has a side surface of the body portion in which the protruding jaw and the inflow portion are formed. It is inserted into the space between and fixed.

Preferably, the body portion further includes a guide rail for guiding the reverse switching unit to the opening on both sides of the opening.

Preferably, the body portion further comprises a drain pump connecting portion is connected to the drain pump outlet line on the upper side, the cover may be mounted detachable on the upper portion of the drain pump connection.

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

Figure 3 is a perspective view of the sewage backflow prevention device according to the present invention, Figures 4 and 5 are a front view and a side view of the removable reverse displacement switch mounted on the sewage backflow prevention device according to the present invention.

3 to 5, the sewage backflow prevention apparatus 100 according to the present invention is the inlet 31, the outlet on the other side opposite to the inlet 31, the inlet 31 is introduced into the sewage on one side (not shown and the image Through the body portion 200 having an opening 32 through which the reverse displacement switch can enter and exit, and the opening 32 provided on the upper side of the body portion 200 according to the guide rail 32. It is provided with a removable reverse switching unit 300 that can be inserted into the interior of the body portion 200 or separated to the outside of the body portion 200. In addition, the upper side of the body portion 200, the drain pump (not shown) Drain pump connection portion 33 may be formed to be connected to the outlet line of the (.) The drain pump connection portion 34 is formed in a cylindrical shape, the outer peripheral surface may be equipped with a removable cap (35). As a result, the inflow of sewage increases so that the drain pump is operated separately. Reflux of the right, the wastewater sewage flowing out of the drain pump at the same time to facilitate the drainage by ensuring that flows into the sewer through the sewer non-return device can be prevented.

Next, the shape of the reverse switching unit 300 is formed to be larger than the inlet portion 31 and is configured to be rotated up and down by providing a hinge on the upper side. Accordingly, when the sewage flows into the inlet part 31, the reverse displacement switch 300 is rotated upward by the water pressure of the sewage, and when the flow rate of the sewage decreases and the water pressure decreases below a certain level, the reverse displacement By the weight of the switch 300 itself, the reverse switching unit 300 is rotated downward to completely seal the inlet portion 31. In addition, when the backflow occurs in the sewage pipe and the sewage flows back from the outlet of the sewage backflow prevention device 100, the reverse switch 100, which is larger than the inlet shape, is blocked by rotation of the inlet outer circumference so that the sewage inlet ( 31) to prevent backflow.

In addition, the reverse switching unit 300 according to the present invention is not fixed to the body portion 200 can not be separated, but is guided through the guide rail 33 to be removable in or out of the body portion 200. It is composed. Specifically, the guide rail 33 has a concave groove in its longitudinal direction, and the reverse displacement switch 300 has convex portions corresponding to the concave grooves of the guide rail on both sides thereof, The switch 300 is able to move up and down through the guide rail 33. Conversely, convex portions may be formed along the longitudinal direction of the guide rail 33, and concave grooves corresponding to the convex portions may be formed on both sides of the reverse displacement switch.

As described above, the sewage backflow prevention device 100 according to the present invention is configured by the reverse variable switch 300 is detachable, so that a large amount of dirt, such as sludge is deposited inside the body portion 200, the reverse variable switch ( Even when the 300 cannot be rotated upward, the reverse switching unit 300 can be separated through the guide rail 33, so that dirt can be dredged easily from the inlet portion 31.

Next, referring to Figures 4 and 5 in detail the structure of the reverse switchgear 300, the reverse switch 300 is larger than the inlet portion 31 of the sewage backflow device to the pressure of the sewage flowing from the sewage pipe during the flow back A check plate 41 which prevents the backflow by preventing the inflow portion 31 and a hinge portion 42 which is configured as a synthetic resin material and is coupled to an upper side of the check plate 41 to enable the up and down rotation of the check plate 41. ), The watertight member 43, which is coupled to the upper side of the hinge portion 42, improves the watertightness of the sewage flowing into the reverse portion switch 300, is fixed to the upper side of the body portion 200 and no longer slides into the body portion. Protruding jaw 44 to prevent, and a removable rod 45 to facilitate the attachment and detachment of the reverse switch.

Preferably, as shown in Figure 5, the watertight member 43 is configured in a trapezoidal shape whose thickness of the cross section becomes thicker upwards, thereby further improving the watertight between the opening 32 and the reverse switching switch 100 Let's do it.

In addition, preferably, the reverse switching unit 300 may further include a watertight member made of a rubber material on the side of the inlet portion 31 direction, thereby further improving the watertightness effect of the sewage through the inlet portion 31. You can.

FIG. 6 is a cross-sectional view A-B of the sewage backflow prevention device shown in FIG. 3. FIG.

As shown in FIG. 6, the body part 200 facilitates cleaning when contaminants are deposited while ensuring sufficient space so as not to affect the movement of the reverse switch. Specifically, the inlet part 31 is smaller than the check plate and is positioned higher than the outlet 62 on which the home sewer pipe is mounted, so that the inlet 31 can be easily drained through the home sewer pipe when the sewage inflows. Make it smooth. In addition, an uneven portion 63 is formed at one end of the outlet 62, and when the home sewer pipe is inserted into the outlet, the home sewer pipe is no longer prevented from entering the body 200.

On the other hand, in the lower portion of the opening 32 is provided a reverse switchgear fixing portion 64 is provided with a space that can be fixed by inserting the watertight member of the reverse switchgear 100. The fixing part 64 has a protruding wall on one side of the inner surface of the upper plate of the body part 200, so that the space between the side wall of the body part on which the inlet part 31 is formed and the protruding wall of the reverse displacement switch 100 A watertight member is inserted, whereby the reverse variable pressure switch is fixed to the body portion so as not to shake. The height of the protruding wall is formed to be the same as the height of the watertight member, and is firmly configured to withstand the water pressure of the sewage flowing through the inlet 31.

As such, the sewage backflow prevention device 100 according to the present invention may be inserted into the body portion 200 or separated from the body portion 200 by the reverse displacement switch 300 from the inside of the body portion 200 if necessary. Pollutants can be dredged easily.

In addition, preferably, the reverse switching unit 300 further includes a watertight member 65 made of a rubber material on the side of the inlet portion 31 direction, so as to provide a watertight between the inlet portion 31 and the check plate 41. It can be further improved.

Next, FIG. 7 is a schematic diagram showing a state in which a sewage backflow prevention device according to one embodiment of the present invention is installed on the outlet side of the sump.

As shown in FIG. 7, the sump 70 may store and store sewage drained from a home through a drain pipe 72, or store sewage or rain from outside through a steel grating 80. The sewage temporarily stored in the sump is thus drained to the sewer pipe 76 through the drain pipe 74. At this time, the sewage backflow prevention device 100 according to the present invention is installed at one end of the drain pipe 74 in the interior of the sump well 70.

When the sewage rises to the sump well 70, the sewage flows in through the inlet 31 of the sewage backflow prevention device 100, and the check plate 41 of the reverse switch 100 by the water pressure of the sewage. The hinge is rotated upwards by the hinge 42, and when the inflow of sewage is stopped, the check plate 41 is rotated downward by its own weight of the check plate 41. In addition, when the sewage flows back through the drain pipe 74 due to a heavy rain or the like, the check board can hermetically seal the inlet port by the water pressure of the backwashed sewage, thereby preventing the reversed sewage from flowing into the sump 70. .

In addition, in order to further facilitate the drainage of sewage in the sump 70, a drain pump 78 may be further provided in the sump 70. Sewage discharged through the drainage pump is discharged into the sewage backflow prevention device through the discharge line 78 connected to the drainage pump connection portion 34 installed on one side of the upper side of the sewage reverse flow prevention apparatus 100, and the discharged sewage Backflow into the sump 70 is prevented by the sewage backflow prevention device. In addition, preferably, when the drain pump 78 is not used in the sump 70, the drain pump inlet part 34 is sealed with the cap 35. As shown in FIG.

On the other hand, as shown in Fig. 7, the reverse variable switch 300 is provided with a removable rod 35 extending to the upper portion of the sump 70, the reverse variable switch from the outside of the catch 70 It can be easily inserted into the body portion 200. Accordingly, even if the sewage overflows the sump 70 and the sewage backflow prevention device 100 is not identified from the outside of the sump 70, the reverse displacement switch 300 is guided using the detachable rod 35. It can be guided by the rail 33 can be inserted into the body portion 200 reverse reverse switch (300).

The foregoing description of various embodiments in accordance with the disclosed invention is provided to enable any person skilled in the art to make use of the invention. Many modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein are applicable to other embodiments without departing from the spirit or scope of the invention. Accordingly, the invention is not limited to the embodiments disclosed herein, and the scope of the invention is given the broadest scope including the principles and novel technical features disclosed herein.

According to the sewage backflow prevention device of the present invention, by constructing the reverse displacement switch installed in the sewage backflow prevention device detachably, it is possible to facilitate the dredging of the dirt deposited therein.

In addition, according to the sewage backflow prevention device of the present invention, even if the sewage backflow prevention device is not seen by the sewage introduced into the sump, it is possible to easily install and detach the reverse displacement switch.

Claims (7)

A body part having an inlet and an outlet; And A reverse shift switch mounted inside the body to be mounted on the inlet side to open the inlet according to the inlet pressure of the sewage and to close the inlet by the pressure of the sewage flowing back or down; The body portion has an opening for inserting the reverse switching unit into the body portion on the upper side, the reverse switching unit is detachable to the body portion through the opening, The reverse variable switch, A checker plate having a larger shape than the inlet; A hinge portion coupled to an upper side of the check plate to enable vertical movement of the check plate; A watertight member coupled to an upper side of the hinge portion and increasing in thickness in an upward direction; A protruding jaw coupled to the watertight member to support the reverse switching unit on an upper side of the body portion; And It is coupled to the upper side of the protruding jaw sewage backflow prevention device comprising a removable rod for enabling the insertion and separation of the reverse switching switch outside the body portion. delete The method of claim 1, Cross section of the watertight member is a sewage backflow prevention device, characterized in that the trapezoidal shape. The method of claim 1, The check plate further comprises a watertight member made of a predetermined rubber material on the side facing the inlet. The method of claim 1, The body portion further includes a protruding jaw in the body portion along one side of the opening, The watertight member of the reverse switching unit is inserted through the opening is sewage backflow prevention device, characterized in that inserted into the space between the protruding jaw and the side of the body portion formed with the inlet is fixed. The method according to any one of claims 1, 3, 4 or 5, The body portion further comprises a guide rail for guiding the reverse switching unit to the opening on both sides of the opening. The method according to any one of claims 1, 3, 4 or 5, The body portion further comprises a drain pump connection portion is connected to the drain pump outlet line on the upper side, Sewage backflow prevention device, characterized in that the upper portion of the drain pump connection portion can be mounted detachable cover.

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