JP5591968B2 - Double pressure vent valve - Google Patents

Description

  The present invention relates to a vent valve that is connected to a drain pipe and adjusts the state of air pressure in the drain pipe to smooth the flow of water.

  Conventionally, drainage such as washing, washing, sink, bath, toilet, and hand-washing has been connected by a drain pipe and connected to a sewer pipe.

  However, in the drainage pipe, air may exist between the wastewater flowing from each place and the stagnant water. However, when the water flows, the stagnant water and the newly flowing wastewater When the positive pressure is applied to the air existing between them, or when the water on the upper floor and the lower floor flows at the same time, there is a case where the positive pressure is applied between the respective water flows to obstruct the flow of the drainage. Moreover, when flowing water passed, a negative pressure was generated between the instrument sealing water and the flowing water, and the sealing water was pulled to obstruct the flow of drainage. In addition, when negative pressure or positive pressure is applied, pulling during negative pressure and a pipe on the lower floor are connected, and when water from the upper floor and water from the lower floor flow simultaneously, The sewage gas sometimes invaded.

  Currently, there are vent valves for optimizing the pressure state of the air in the drain pipe, but all of them are complicated and expensive, mainly corresponding to the negative pressure state. It wasn't a valve.

JP 2007-255513 A

  Therefore, the present invention provides a double pressure vent valve that has a simple structure and can handle both positive pressure and negative pressure in a drain pipe.

In order to solve the above problems, the present invention
(1)
A connecting portion that communicates with the drainage pipe, and an intake valve that is connected to the connecting part and has an intake valve inside thereof, and when the inside of the drainage pipe is under negative pressure, the intake valve is lifted by outside air that is taken into the drainage pipe to draw air into the drainage pipe. An intake section for taking in, and an exhaust section that is connected to the connection section and has an exhaust valve inside, and when the inside of the drain pipe is at a positive pressure, the exhaust valve is pushed up by the air discharged from the drain pipe and releases the air in the drain pipe It was set as the structure of the double pressure ventilation valve characterized by comprising.

(2)
The intake section is positioned below the main body, the exhaust section is positioned above the main body, and the arrangement of the intake section, the main body, and the exhaust section is substantially perpendicular to the ground, and the main body and the drain pipe The structure of the double pressure ventilation valve is characterized in that is communicated.

(3)
Provided with a first locking net that divides the intake part into two parts inside the intake part, an intake hole is formed at the end opposite to the exhaust part, and the intake valve can be moved between the first locking net and the intake hole The exhaust portion is provided with a second locking mesh that bisects the inside of the exhaust portion, and includes a locking plate having an exhaust hole formed on the side of the intake portion. An exhaust part with an exhaust valve movably placed between the stop plates,
When the inside of the drain pipe is under negative pressure,
The intake valve of the intake part is pushed up by the air flow to the first locking net side to open the intake hole, and the exhaust valve of the exhaust part is pushed down to the locking plate side by the air flow and the exhaust hole Air is taken into the drain pipe from the intake hole,
When the inside of the drain pipe is positive pressure,
The intake valve of the intake section is pushed down to the intake hole side by the air flow to block the intake hole, and the exhaust valve of the exhaust section is pushed up to the second locking net side by the air flow to The dual pressure vent valve is configured as described in (1) or (2), in which the air in the drain pipe is released from the exhaust hole.

  Since the present invention is configured as described above, when the pressure in the drain pipe is positive, the air is effectively released, and in the case of negative pressure, the air is efficiently taken in and the water is smoothly drained in the drain pipe. It can flow, prevent noise and odor from being drained, and prevent the intrusion of sewage gas in the middle floor without the equipment sealing water splashing even when a pipe is connected to the middle floor. I can do it.

  Moreover, since the structure is simple, the production cost can be kept low, and it is easy to introduce when a ventilation valve is not provided.

It is a front view of the double pressure vent valve which is this invention. It is a rear view of the double pressure vent valve which is this invention. It is a left view of the double pressure vent valve which is this invention. It is a right view of the double pressure ventilation valve which is this invention. It is a top view of the double pressure vent valve which is this invention. It is a bottom view of the double pressure vent valve which is this invention. It is an AA line sectional view of a both-pressure ventilation valve which is the present invention. It is a perspective exploded view of the double pressure vent valve which is the present invention. It is sectional drawing at the time of the positive pressure in the pipe | tube which attached the double pressure ventilation valve which is this invention. It is sectional drawing at the time of the negative pressure in the pipe | tube which attached the double pressure ventilation valve which is this invention.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  1 is a front view of a dual pressure vent valve according to the present invention, FIG. 2 is a rear view of the dual pressure vent valve, FIG. 3 is a left side view of the dual pressure vent valve, and FIG. 4 is a right side view of the dual pressure vent valve. 5 is a plan view of the dual pressure vent valve, FIG. 6 is a bottom view of the dual pressure vent valve, FIG. 7 is a sectional view taken along line AA of the dual pressure vent valve, FIG. 8 is a perspective exploded view of the dual pressure vent valve, and FIG. FIG. 10 is a cross-sectional view of the case where a double pressure vent valve is attached and the inside of the pipe is at a positive pressure, and FIG.

  As shown in FIGS. 1 to 8, the dual pressure vent valve 1 according to the present invention includes a connection portion 4 that communicates with a drain pipe, and an intake valve 2 c that is continuous with the connection section 4 and is provided inside the drain pipe. The intake valve 2c is lifted by outside air taken into the drainage pipe when the pressure is negative, and the intake part 2 takes in the air into the drainage pipe, and the exhaust pipe 3d is connected to the connection part 4 and provided inside. When the pressure is positive, the exhaust valve 3d is composed of an exhaust part 3 that is pushed up by the air discharged from the drain pipe and releases the air in the drain pipe.

  As shown in FIG. 7 and FIG. 8, the dual pressure vent valve 1 includes a main body 5 having a substantially T-shaped hollow interior and opened at each end, and an intake section formed at each opening of the main body 5. 2. It consists of the member which comprises the exhaust part 3 and the connection part 4. FIG. In addition, each opening part of the said main body 5 was made into the 1st opening 2f, the 2nd opening 3a, and the 3rd opening 4a.

  The intake portion 2 includes a second inner tube 2e having an outer diameter equal to the inner diameter of the first port 2f and a cylindrical shape, and a disk-shaped first inner tube 2e having a diameter equal to the outer diameter of the second inner tube 2e. The locking net 2d, the thin disk-like intake valve 2c having a diameter smaller than the diameter of the first locking net 2d, and the inner diameter and the outer diameter are equal to the inner diameter and the outer diameter of the second inner pipe 2e. A cylindrical first inner pipe 2b shorter than the pipe 2e, a cylindrical body having an outer diameter equal to the outer diameter of the first port 2f and an inner diameter equal to the outer diameter of the first inner pipe 2b, one end of the first inner pipe 2b An opening for inserting the pipe 2b is formed, and the other end includes a cover 2a provided with a wall and having an intake hole 2g having a diameter smaller than the diameter of the intake valve 2c at the center.

  The first inner pipe 2b is entirely inserted into the cover 2a, and the intake valve 2c is put into the first inner pipe 2b. Further, the first locking net 2d is attached to the edge of the first inner pipe 2b, and a part of the second inner pipe 2e is fitted into the cover 2a. The remaining portion of the second inner pipe 2e is fitted into the first port 2f.

  As shown in FIG. 7, a part of the second inner pipe 2e is not fitted into the cover 2a or the first port 2f, and is between the end of the cover 2a and the end of the first port 2f. A gap is formed in. However, this gap is not essential, and there may be a case where there is no gap depending on the size of the member.

  The intake valve 2c is in a space surrounded by the cover 2a, the first inner pipe 2b, and the first locking net 2d, and between the wall surface of the cover 2a provided with the intake holes 2g and the first locking net 2d. Move according to the air flow.

  For example, in the case of a flow that takes air into the double-pressure vent valve 1, that is, when the inside of the drain pipe has a negative pressure, the intake valve 2c is lifted by the negative pressure in the drain pipe and simultaneously pushed up to the inflowing air. Can take in air from the intake hole 2g, and in the case of a flow that releases air from the two-pressure vent valve 1, that is, when the pressure in the drain pipe is positive, the intake valve 2c is pushed down by the positive pressure in the drain pipe. Since the intake hole 2g is closed, exhaust from the intake hole 2g is impossible.

  The exhaust part 3 includes a thin disc-shaped locking plate 3b having an outer diameter smaller than the inner diameter of the second port 3a and a large exhaust hole 3g in the center, and an outer diameter equal to the inner diameter of the second port 3a. A cylindrical third inner pipe 3c having an equal length about half the height of the inner wall of the second port 3a, an exhaust valve 3d having the same shape and size as the intake valve 2c, and the first locking net 2d And a second locking net 3e of the same shape and size, and a fourth inner tube 3f of the same shape and size as the third inner tube 3c. The diameter of the outer diameter of the locking plate 3b and the third inner pipe 3c, the diameter of the outer diameter of the fourth inner pipe 3f and the diameter of the second locking net 3e are equal, and the diameter of the exhaust valve 3d. Is smaller than the inner diameter of the third inner tube 3c and larger than the diameter of the exhaust hole 3g.

  First, the locking plate 3b is inserted into the second port 3a, and then the third inner tube 3c is inserted. At this time, the locking plate 3b is sandwiched between the step 3h portion in the second port 3a and the end of the third inner tube 3c.

  Next, an exhaust valve 3d is inserted into the third inner pipe 3c, a second locking net 3e is attached to the edge of the third inner pipe 3c, and finally the entire fourth inner pipe 3f is placed in the second port 3a. Fit into. Therefore, the outer periphery of the second locking net 3e is sandwiched between the third inner tube 3c and the fourth inner tube 3f.

  The exhaust valve 3d is in a space surrounded by the locking plate 3b, the third inner pipe 3c, and the second locking net 3e, and air flows between the locking plate 3b and the second locking net 3e. Move according to.

  For example, in the case of a flow that takes air into the double pressure vent valve 1, that is, when the drain pipe has a negative pressure, the exhaust valve 3d is pulled down by the negative pressure in the drain pipe and at the same time pushed down by the outside air, so the locking plate 3b In the case of the flow that closes the exhaust hole 3g and prevents the intake of air from the exhaust hole 3g and releases the air from the double pressure vent valve 1, that is, when the inside of the drain pipe is positive pressure, the exhaust valve 3d Is pushed up by the positive pressure in the drain pipe to open the exhaust hole 3g, allowing exhaust from the exhaust hole 3g.

  That is, the intake part 2 includes a first locking net 2d that bisects the inside of the intake part 2, and an intake hole 2g is formed at an end opposite to the exhaust part 3 so that the first locking net 2d and An intake valve 2c is movably disposed between the intake holes 2g, and the exhaust part 3 is provided with a second locking net 3e that bisects the inside of the exhaust part 3, and an exhaust hole 3g is formed on the intake part 2 side. An exhaust valve 3d is arranged between the second locking net 3e and the locking plate 3b so as to be movable.

  Then, as shown in FIG. 10, when the inside of the drain pipe 6 has a negative pressure, the intake valve 2c of the intake section 2 is pushed up by the air flowing in to open the intake hole 2g and the exhaust section 3 The exhaust valve 3d is pushed down by the air that is about to flow in, seals the exhaust hole 3g, and takes air into the drain pipe 6 only from the intake hole 2g. As shown in FIG. When pressure is applied, the intake valve 2c of the intake section 2 is pushed down by the air that is about to flow out of the drain pipe to block the intake hole 2g, and the exhaust valve 3d of the exhaust section 3 is pushed up by the outflowed air. The exhaust hole 3g is opened to allow air in the drain pipe 6 to escape from the exhaust hole 3g.

  The connection portion 4 includes a third port 4 a formed in the main body 5. By connecting the drain pipe 6 and the backflow prevention pipe 6b from the drain pipe 6 to the third port 4a, the dual pressure vent valve 1 according to the present invention can be attached.

  When the dual pressure vent valve 1 according to the present invention is attached, the intake section 2 is positioned below the main body 5, the exhaust section 3 is positioned above the main body 5, and the intake section 2 It is preferable that the main body 5 and the exhaust part 3 are arranged substantially perpendicular to the ground, and the main body 5 and the drain pipe 6 communicate with each other. The connecting position of the connecting part 4 is substantially vertical to the drain pipe 6. It may be a part or a side running part.

  In addition, in FIG. 9, the code | symbol 6a has shown the water stagnated in the drain pipe, or the water which flowed simultaneously with the upper floor when there is a lower floor, and the arrow which attached | subjected the code | symbol 6c has shown the water flow.

  When water newly flows, the state of the air between the stagnant water 6a and the water flow 6c becomes positive pressure, and the air flows in the direction of the double pressure vent valve 1 in search of the escape place, and the intake valve 2c and the Each of the exhaust valves 3d is pushed outward. At this time, the intake valve 2c closes the intake hole 2g, the exhaust valve 3d opens the exhaust hole 3g, and exhaust 6d is performed from the exhaust hole 3g.

  As shown in FIG. 9, when the double pressure vent valve 1 functions and the positive pressure state in the drain pipe 6 is settled and water continues to flow, or when normal water passes, As shown in FIG. When the inside of the drain pipe 6 becomes negative pressure, a flow of taking in air occurs, the intake valve 2c of the both-pressure vent valve 1 is pushed up by outside air, and the exhaust valve 3d is pushed down to the main body 5 side. At this time, the intake valve 2c opens the intake hole 2g, the exhaust valve 3d closes the exhaust hole 3g, and intake 6e is performed from the intake hole 2g.

  As described above, in the dual pressure vent valve 1 according to the present invention, the intake valve 2c and the exhaust valve 3d move in response to the air flow that occurs in the negative pressure and the positive pressure repeated in the drain pipe 6, The flow of water in the drain pipe can be made smooth by taking in air in the case of negative pressure and letting air escape in the case of positive pressure.

  In addition, when the drain pipe 6 is neither positive nor negative pressure, the intake valve 2c closes the intake hole 2g by its own weight, and the exhaust valve 3d also closes the exhaust hole 3g by its own weight. Release can be suppressed.

  In addition, the code | symbol 6f shown in FIG.9 and FIG.10 has shown the middle floor pipe when the pipe | tube is connected between the upper floor and the lower floor, and the said middle floor pipe 6f is also instrument-sealed. .

  As pointed out in the previous problem, when a middle-floor pipe is connected between the upper floor and the lower floor, pulling under negative pressure, or when water from the upper floor and water from the lower floor flow simultaneously There was a case in which the sealing water disappeared and the sewage gas invaded due to the splash of the equipment sealing water on the floor, but the pressure in the pipe can be kept in a suitable state by connecting the double pressure vent valve 1 of the present invention. Therefore, there is no effect on the instrument seal water on the middle floor.

  The dual pressure vent valve of the present invention has a simple structure, so installation costs, maintenance costs, and replacement costs can be kept lower than before, and it is easy to incorporate into existing houses that did not have a vent valve. A comfortable living environment can be created.

DESCRIPTION OF SYMBOLS 1 Both-pressure ventilation valve 2 Intake part 2a Cover 2b First inner pipe 2c Intake valve 2d First locking net 2e Second inner pipe 2f First port 2g Intake hole 3 Exhaust part 3a Second port 3b Locking plate 3c Third Inner pipe 3d Exhaust valve 3e Second locking net 3f Fourth inner pipe 3g Exhaust hole 3h Step 4 Connection 4a Third port 5 Body 6 Drain pipe 6a Water 6b Backflow prevention pipe 6c Water flow 6d Exhaust 6e Intake 6f Middle floor pipe

Claims (1)

After branching horizontally from a vertical drainage pipe , it is attached to a backflow prevention pipe that is erected and bent further horizontally with the exhaust part up and the intake part down. A double pressure vent valve that vents,
A second port provided continuously through a step in the upper part of the cylindrical main body, a first port provided in a lower part of the main body through a step, a third port provided on a side of the main body, and the third port A front-view T-shaped connection portion connected to the backflow prevention pipe ,
A ring-shaped second inner pipe partially inserted up to the step in the first port, a first locking net locked to an end of the second inner tube, A ring-shaped first inner pipe that holds and fixes one locking net between the second inner pipe end portions, the first inner pipe and the first inner pipe are fitted on the outer periphery of a part of the first inner pipe and the second inner pipe. A cover having an intake hole smaller than the inner diameter of the first inner pipe, and a thin disk-like shape having a smaller diameter than the first inner pipe arranged in the first inner pipe so as to be movable between the first locking net and the intake hole of the cover. an intake section Ru an intake valve,
A locking plate having an exhaust hole that is locked to the step in the second port, and a ring-shaped first member that fits into the second port and fixes the position between the locking plate and the step in the second port. Three inner pipes, a second locking net locked to the end of the third inner pipe, and inserted into the second port, and the second locking net is sandwiched between the third inner pipe end and fixed. A ring-shaped fourth inner pipe, a thin disk-like exhaust valve having a diameter larger than the exhaust hole of the locking plate disposed in the third inner pipe so as to be movable between the locking plate and the second locking net. and the exhaust section Ru with,
Tona is,
When the inside of the drain pipe is under negative pressure,
The depressed by air flow to said locking plate-side exhaust valve of the exhaust portion with opening the intake hole intake valve is pushed up by the air flow into the first locking network side of the intake section and seal the exhaust hole incorporate air into the waste water pipe from the intake hole,
When the inside of the drain pipe is positive pressure,
The exhaust is pushed up by the air flow into the second locking network side exhaust valve of the exhaust portion with an intake valve of the intake section to seal the inlet openings depressed by air flow to the intake hole side A double pressure vent valve characterized in that a hole is opened to allow air in the drain pipe to escape from the exhaust hole.

Images