JP5054620B2 - Ventilation valve - Google Patents

Description

  The present invention relates to a vent valve that is attached to a drain pipe such as a kitchen sink, a wash basin, and a bathtub provided in a building such as a house and adjusts the negative pressure in the drain pipe.

  A deodorizing valve called a trap may be provided in a drain pipe of a drainage device such as a kitchen sink, a wash basin, and a bathtub provided in a building such as a house. This trap is installed near the drain of drainage equipment, and the drainage pipe is blocked by the residual drainage of the U-shaped and S-shaped sections of the trap, and the odor of the drainage pipe is released from the outlet. It plays the role of stopping.

  There may be a case where negative pressure is applied to the inside of the drain pipe due to various downstream conditions. However, if this negative pressure exceeds the planned range, the residual drainage of the trap is sucked by this negative pressure and flows downstream. And the drainage pipe which was blocked will ventilate with outside air, and will start to emit a bad smell. This situation is expressed as a trap being broken.

  In order to prevent this, a drain valve may be provided in the drain pipe. This vent valve is normally closed, but when the negative pressure in the drain pipe increases, the valve opens so that the outside air can be sucked. This prevents the negative pressure in the drain pipe from becoming too large, thus preventing the trap from being broken.

An example of such a vent valve is a drainage vent device disclosed in Patent Document 1. According to this drainage ventilator, it can be installed in a narrow installation space, is easy to construct, and drainage does not leak from this ventilator.
JP 2007-291852 A

  However, such a venting device has a certain size due to the urging mechanism and its valve stem, etc., because the valve used is urged by an elastic body, so that much space is required. There is still a need for improvements to the installation space. Further, in a narrow place such as a wash cabinet, such a vent valve may not be installed in a desired posture, and may be attached to the planned posture by an oblique posture or a horizontal posture.

  The valve is usually closed and energized in some way. However, if the mounting orientation changes, the valve's opening and closing characteristics will be affected, for example, by changing the direction of its own weight. For this reason, it becomes difficult to open when it should be opened, or it will open easily when it should be closed.

  In view of the above problems, the object of the present invention is to provide a ventilation valve that does not take up installation space, has few restrictions on the installation posture, is easy to install, and can easily adjust the closing force of the valve. There is to do.

In order to solve the above problems, the invention of the vent valve according to claim 1 or 5 of the present application is a main body in which a connection port connected to a drain pipe and a vent hole for introducing outside air into the drain pipe are formed. And a valve body that can open and close the vent and can be opened by a negative pressure of the drain pipe.

  And by providing one side of this element which uses a magnet and a magnet or a magnet and a magnetic body as a pair of elements on the main body and the valve body, the air vent is repelled or closed by the valve body. It is formed so as to generate a magnetic force for adsorption, and is provided with an adjusting means capable of adjusting the closing pressure to the vent by the valve body by relatively moving the distance between the elements. To do.

Invention 請 Motomeko 1 described, I der case of magnetic force magnetic force to repel, i.e., the body, the cylindrical body provided with a connection port and the element is attached to the cylindrical body comprises a vent And a lid. The valve body is disposed so as to obtain a closing pressure to the vent hole by being positioned between the lid body and the cylinder side element, and the adjusting means is capable of adjusting the perspective to the cylinder body. It is the said cover body with which the body was mounted | worn, It is characterized by the above-mentioned.

According to a second aspect of the present invention, in the first aspect of the present invention, the lid has a tapered taper portion with a tapered shape, and a vent hole is formed in the tapered taper portion. A valve body taper portion that can be polymerized on the inner surface of the taper portion, an element, and a ring-shaped valve that abuts the lid body taper portion as a valve seat when the valve body taper portion overlaps the lid body taper portion. It is characterized by having.

According to a third aspect of the present invention, in the second aspect of the present invention, the lid is provided with a long guide portion that extends coaxially with the cylindrical body and into the valve chamber. A guide groove that is loosely provided is provided.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the lid is attached by screwing to the cylindrical body.

According to a fifth aspect of the invention, the magnetic force in the case of a magnetic force for adsorbing, i.e. body has a cylindrical body having a connection port and vent element holding to be mounted on the cylinder to hold the device And having a body. The valve body is arranged so as to obtain a closing pressure to the vent hole by being provided on the opposite side of the element holding body across the vent hole, and the adjusting means is in a state in which the distance to the cylinder body can be adjusted. The element holding body mounted on the cylindrical body.

The invention according to claim 6 is the invention according to claim 5 , wherein a cylindrical taper portion with the top facing the element holding portion mounted on the cylindrical body, and a vent opening formed in the cylindrical taper portion; Have
The valve body comes into contact with the cylindrical taper portion serving as a valve seat when the valve body taper portion is superposed on the inner surface of the cylindrical taper portion, the element, and the valve body taper portion are superposed on the cylindrical taper portion. And a ring-shaped valve.

A seventh aspect of the invention is characterized in that, in the fifth or sixth aspect of the invention, the element holding body is attached by screwing to the cylindrical body.

  In the present invention as described above, the invention according to claim 1 has a simple mechanism and a small installation space because the closing biasing of the ventilation valve, that is, the closing pressure is not an elastic body but a magnetic force.

  Moreover, since the closing pressure can be adjusted, it is possible to select a closing pressure that matches the negative pressure expected for the drainage pipe to be installed. Depending on the installation location, if the installation posture is different, such as vertical, diagonal, or horizontal, the closing pressure obtained may vary because the direction of the weight of the valve body changes, etc. Thus, a predetermined closing pressure can be obtained.

The invention according to claims 1 to 3 specifically presents a vent valve that closes the valve body with a magnetic force due to repulsion, and the invention according to claims 5 to 6 closes the valve body with a magnetic force due to adsorption. A specific vent valve is presented.

Particularly, in the inventions of claims 2 and 6 , when the opened valve is closed again, the taper shape of the valve body guides the polymerization position with the cylinder taper portion and the lid taper portion of the polymerization partner, The closure is made accurately.

The invention described in claims 3 and 7 adjusts the closing pressure. In the case of claims 2 to 4, the lid is screwed onto the cylinder, and in the case of claims 4 and 7 , the cylinder of the element holding body. This can be done by adjusting the screw tightening to the body.

  Next, an embodiment of the present invention will be described with reference to the drawings.

  Next, the embodiment 1 of the vent valve 1 shown in FIGS. 1 and 2 is an embodiment of the vent valve according to claims 2 to 5 in particular, and when this vent valve is connected to the drain pipe of the trap, FIG. As shown in FIG. 3, it is connected to the downstream position of the trap 100.

  The ventilation valve 1 has a main body 10 and a valve body 40. The main body 10 includes a cylinder body 11 and a lid body 20 that is screwed onto the cylinder body 11.

  As shown in FIGS. 2, 4, and 5, the cylindrical body 11 has a connection port 12 connected to a drain pipe, and a screw 14 for screwing the lid 20 is provided on the outer periphery. In addition, a partition portion 16 in which two ribs 15 spanned in a diameter are crossed in a cross shape is provided inside the cylindrical body 11, and a magnet hole for inserting a magnet as an element is inserted into the cross portion. 17 is provided, and a magnet 18 is inserted. The partition 16 also serves as a stopper that stops when the cylinder 11 is fitted into the drain pipe. The cylindrical body 11 is provided with an O-ring packing 13 on the outer periphery near the upper end, and is kept airtight with the lid described below.

  As shown in FIGS. 4 to 5, the lid body 20 includes a lid body 21 and a cap portion 30 attached to the lid body 21.

  The lid body 21 includes a lid cylinder portion 22 that is screwed to the outer periphery of the cylinder body 11, and a lid taper portion that protrudes outside the lid cylinder portion 22 so as to close an opening on one side of the lid cylinder portion 22. 23 and a lid flange portion 24 formed at the bottom of the lid taper portion 23 and continuing to the lid cylinder portion 22 are integrally formed. As shown in FIGS. 4 to 5, the lid taper portion 23 is provided with a large number of vent holes 25 on its taper surface, and the top portion 26 of the lid taper portion 23 is formed in a flat shape. . A through hole 27 is formed at the center of the top portion 26 so that a guide rod 31 as a guide portion of the cap portion 30 to be described later can be passed therethrough. A number of mounting holes 28 for mounting are provided around the periphery (FIG. 6).

  The shade portion 30 has a shape similar to that of a third shade, and a round bar-like guide rod 31 that guides the movement of the valve body 40 by magnetic force or negative pressure protrudes downward from the center of the back surface thereof. In addition, a large number of protrusions 32 for attaching the cap portion 30 to the lid main body 21 are provided around the guide rod 31 so as to be fitted into the attachment holes 28 of the lid main body 21. When fitting, the guide rod 31 and the protrusion 32 of the cap 30 are fitted so as to be inserted into the through hole 27 and the mounting hole 28 of the lid main body 21, whereby the cap 30 is attached to the lid main body 21. The lid 20 is formed.

  As shown in FIGS. 2, 4, and 5, the valve body 40 has a tapered valve body taper portion 41 formed on the inner surface of the lid taper portion 23 so as to be superposed. An O-ring-shaped valve 42 is fitted around the bottom of the valve body taper portion 41. The top portion of the valve body taper portion 41 is formed on a flat top surface 43, and a guide groove 44 in which the guide portion on the lid side is loosely fitted is provided in the center of the top surface 43 in the direction of the taper axis. Yes.

  In the valve body 40, a small columnar magnet 45 is embedded as an element below the guide groove 44. The magnet 45 on the valve body 40 side and the magnet 18 on the cylinder body 11 side are opposed to repelling magnetic poles in an arrangement located on the axis of the cylinder body 11. When the lid 20 is screwed to the cylindrical body 11, the valve chamber 17 is formed between the lid 20 and the partition portion 16, and the valve body 40 loosely fitted to the guide rod 31 is formed in the valve chamber 17. Is stored. Then, when the vent valve 1 is in the same vertical position as the vertical direction in FIG. 5, the valve body 40 tends to be lowered by its own weight as shown in FIG. However, in that case, it will be close to the repulsive magnet 18 on the cylindrical body 11 side, and it will be in a state where it is superposed by the repulsive force so as to be pressed against the lid taper portion 23 as shown in FIG. Therefore, the valve is closed by the closing pressure repelled by this magnetic force.

  When the valve body taper portion 41 is superposed on the inner surface of the lid body taper portion 23, the O-ring-shaped valve 42 comes into contact with the lower part of the inner peripheral surface of the lid body taper portion 23, thereby closing the valve 42. It has become. At this time, the lid taper portion 23 forms a valve seat.

  The method of using the vent valve as described above is as follows. First, as shown in FIG. 3, a branch pipe 102 for attachment is branched to a drain pipe 101 to be attached. In the illustrated branch pipe 102, a branch pipe 102 is formed at a position downstream of the trap 100 with a T-shaped pipe 102a interposed therebetween, and its mouth end 103 extends upward. The connection port of the vent valve is fitted in the connection.

  Once connected, the lid 20 that is screwed onto the cylinder 11 is turned to adjust the perspective to the cylinder 11. Specifically, the perspective adjustment with the magnet 18 embedded in the partition portion 16 of the cylinder 11 is performed, and due to the strength of repulsion due to the perspective, the O-ring shaped valve 42 provided in the valve body 40 is adjusted. The closing pressure can be adjusted. FIGS. 8 to 9 are examples when the lid 20 is separated from the cylinder 11 and the valve is opened by the above adjustment.

  As an example, when the lid 20 is adjusted to the perspective state of FIG. 5, when the negative pressure of the drain pipe increases and becomes larger than the closing pressure of the valve body 40 by the magnet, the state shown in FIG. 7 is obtained. The valve 42 opens. When the valve 42 is opened, outside air is taken in from the vent hole of the lid body 21 due to negative pressure, and the outside air passes through the partition 16 and flows into the drain pipe from the connection port 12. When the negative pressure of the drain pipe is eliminated or the closing pressure by the magnets 18 and 45 is won, the state returns to the state of FIG. 5 and returns to the normal state in which the valve 42 is closed.

  When the valve 42 is open, the magnets 18 and 45 are at the closest distance, and therefore the repulsive force is the strongest. Therefore, the closing operation by the release of the negative pressure is quickly performed, and the odor in the drain pipe is thus obtained. Will not leak.

  Note that the guide rod 31 may not be provided as long as the valve body 40 is satisfactorily closed without the guide rod 31. The valve 42 may be a flat valve as in the first embodiment instead of the O-ring. The thing without the cap part 30 may be sufficient. In that case, you may provide an air vent in places different from an Example, such as the top part of a lid | cover main body.

  10 to 11 show the vent valve 2 of the second embodiment according to the sixth to eighth aspects of the present invention. When this vent valve is connected to the drain pipe of the trap, FIG. 3 shown in the first embodiment is shown. The connection method is almost the same.

  The ventilation valve 2 has a main body 50 and a valve body 70. As shown in FIG. 12, the main body 50 includes a cylindrical body 51 and a cylindrical element holding body 60 screwed to the cylindrical body 51. As shown in FIG. 13, the valve body 70 is separate from the main body 50 and is accommodated in the cylindrical body 51.

  The main body 50 is as shown in the sectional view of FIG. 14, and will be described together with FIG. That is, the cylindrical body 51 is opened downward to form a connection port 52 to the drain pipe, and the cylindrical taper portion 53 protruding upward from the cylindrical body 51 is connected to the cylindrical portion 55 of the cylindrical body 51. It is integrally formed. In addition, the cylindrical taper portion 53 is formed in a cylindrical flange portion 54 having a skirt portion continuous to the upper edge of the cylindrical body 51, and the top portion is open to form a vent hole 56. A screw 57 is formed on an upper portion of the outer side of the cylindrical body 51 so that the element holding body 60 can be screwed.

  The element holding body 60 has a cylindrical shape with one opening downward, and a screw 61 that can be screwed to the screw 57 of the cylindrical body 51 is formed inside the opening. The element holder 60 has a cylindrical top closed by a top plate 62, and a magnet hole 64 for receiving a magnet 63 as an element is provided in the center of the inner back surface of the top plate 62. A small columnar magnet 63 is inserted into the inner wall. A large number of vent holes 66 are received around the cylindrical portion 65 of the element holder 60 so as to allow ventilation with outside air.

  In the cylinder body 51, a valve body is accommodated in a valve chamber 58 of the cylinder body 51. That is, a partition plate 59 as a partition portion shown in FIG. 13 is fitted to the cylindrical body 51 in the middle position of the cylindrical body as shown in FIGS. A valve chamber 58 is formed between the body taper portion 53 and the body taper portion 53. The partition plate 59 has a ring plate shape that fills the inner diameter of the cylindrical body 51, and a ring port 59 a formed at the center of the partition plate 59 has a receiving portion 59 b erected toward the valve chamber. It is provided around the periphery of the ring port 59a and is formed so as to receive the valve body 70 as described below.

  The receiving portion 59b is also for preventing the valve body 70 from being separated from the vent 56 when the valve body 70 is opened by the negative pressure of the drain pipe. That is, when the valve is opened by the negative pressure of the drain pipe, as shown in FIG. 16, the valve body 70 is separated from the cylindrical tapered portion 53. However, when the negative pressure is eliminated and the valve returns to the normal state, the element holding body is returned. If the valve body 70 is not within the range covered by the magnetic force on the 60 side, it cannot be adsorbed again. For this reason, the valve element 70 in the valve chamber 58 is stopped at a position where it can be adsorbed again by the receiving portion 59b so that this is not the case.

  Alternatively, when the element holding body 60 that has adsorbed the valve body 70 is removed from the cylinder body 51, the valve body 70 that has been superposed on the cylinder taper portion 53 loses its adsorption and is removed from the cylinder taper portion 53. In this case, when the element holder 60 is screwed again, the valve body cannot be adsorbed again unless the magnetic force on the element holder 60 side is within the range. The receiving part 59b is still necessary.

  As shown in FIGS. 13 and 15, the valve body 70 is formed such that a tapered valve body taper portion 71 is superposed on the inner surface of the cylindrical taper portion 53. Further, a flat ring-shaped valve 72 is fitted around the hem of the valve body taper portion 71, and the top portion of the valve body taper portion 71 is formed on a flat top surface 73. It is formed in the size of the vent 56 at the top of the cylindrical taper portion 53.

  In the valve body 70, a small cylindrical magnet 74 is embedded as an element on the top surface 73 of the valve body taper portion 71. The magnet 63 on the element holding body 60 side and the magnet 74 on the valve body 70 side are both positioned on the axis of the cylindrical body 51, and the magnetic poles attracting each other are opposed to each other. When the element holding body 60 side is screwed to the cylindrical body 51, the magnet 63 on the element holding body 60 side faces the vent hole 56. Thus, normally, the valve body 70 on the other side of the vent hole 56 receives a magnetic force attracted to the element holding body 60, and as a result, the attracted valve body 70 is superposed on the cylindrical taper portion 53. The valve 72 is closed by the closing pressure due to the magnetic force.

  At this time, the magnets 63 and 74 are positioned on the axis of the cylinder, and when the element holder 60 is rotated to adjust the distance from the cylinder 51, the magnet on the element holder 60 side is not affected by this axis. It will move up and down. In this regard, the cylindrical taper portion 53 and the valve body taper portion 71 both have the taper axis aligned with the axis of the cylinder, so that the valve body taper portion 71 is brought into the cylindrical taper portion 53 by an adsorption force. When superposing, the magnet attracting force also serves to align the axial center of the valve body taper portion 71 with the axial center of the cylindrical body taper portion 53, so that the superposition of the tapers is accurately performed without deviation. .

  When the valve taper portion 71 is superposed on the inner surface of the cylindrical taper portion 53, the ring-shaped valve 72 is superposed on the lower surface of the cylindrical flange portion 54, thereby closing the valve 72. . At this time, the cylindrical flange portion 54 forms a valve seat. Further, at the time of this polymerization, the top surface 73 of the valve body taper portion 71 is formed so as to fill the vent 56 and be flush with the peripheral end of the vent 56.

  The method of using the vent valve as described above is as follows. First, the method of attaching the vent valve 1 to the drain pipe is substantially the same as that of FIG. 3 shown in the first embodiment, and the vent port connecting port 42 is fitted and connected to the end of the branch pipe of the drain pipe. is there.

  After the connection, the element holding body 60 screwed to the cylindrical body 51 is rotated to adjust the perspective to the cylindrical body 51. Specifically, the perspective adjustment with the vent 56 of the cylinder 51 is performed, and thus the perspective adjustment with the magnet 74 of the valve body top surface 73 in a state of being normally fitted in the vent 56 is performed. The closing pressure of the ring-shaped valve 72 provided in the valve body 70 can be adjusted by the strength of the adsorption. FIG. 17 is an example of a state in which the element holder 60 is separated from the vent 56 by the above adjustment.

  As an example, when the element holding body is adjusted to the perspective state of FIG. 14, when the negative pressure of the drain pipe 101 increases and becomes larger than the closing pressure of the valve body 70 by the magnets 63 and 74, the state as shown in FIG. Thus, the valve 72 is opened. When the valve 72 is opened, outside air is taken in from the ventilation hole 66 of the element holding body 60 due to negative pressure, and this outside air enters the cylinder body 51 from the ventilation hole 66, passes through the ring port 59 a of the partition plate 59, and is connected to the connection port 52. It flows into the drain pipe 101 from the bottom. When the negative pressure of the drain pipe 101 is eliminated or when the closing pressure by the magnets 63 and 74 exceeds the negative pressure, the state returns to the state of FIG. 14 and returns to the normal state in which the valve 72 is closed.

  In the above description, the element is a magnet. However, the element may be a magnet and a magnetic body, for example, an element made of a magnet and iron. Further, the vent may be formed on the tapered surface instead of the top of the taper.

  The valve seat side with which the valve abuts may be the inner surface of the cylindrical taper portion or the lid taper portion, or may be the cylindrical flange portion or the lid flange portion. Alternatively, the taper surface of the valve body itself may be used as a valve so as to have surface characteristics that can be in close contact with the inner surface of the cylindrical taper portion or the lid taper portion.

  The arrangement, shape, and number of elements such as magnets are not limited to those in the embodiment, and may be various arrangements.

This figure is a front view of the vent valve of the first embodiment. This figure is an exploded perspective view of the vent valve. This figure is a state of attaching the vent valve to the trap drain pipe. This figure is an exploded view of the vent valve. This figure is a sectional view of the vent valve in the state of FIG. This figure is a bottom view of the lid body. This figure is a cross-sectional view of the vent valve in the state of FIG. 5 when the valve body is opened by negative pressure. This figure is a view showing a state in which the lid is separated from the cylindrical body, rather than the state shown in FIG. This figure is a cross-sectional view of FIG. This figure is a perspective view of the vent valve of the second embodiment. This figure is a front view of the vent valve. This figure is a state in which the element holder of the vent valve is removed from the cylinder. This figure is an exploded view of the state in which the partition plate fitted inside the cylindrical body is removed and the valve body is housed therein. This figure is a sectional view of the vent valve. This figure is an exploded sectional view of the vent valve. This figure is a state in which the valve element is opened in the state of the cross-sectional view of FIG. This figure is a cross-sectional view when the element holding body is separated from the cylindrical body, rather than the state of FIG.

DESCRIPTION OF SYMBOLS 1, 2 Ventilation valve 10 Main body 11 Cylinder 12 Connection port 16 Partition part 18 Magnet 20 as an element Lid body 21 Lid body 23 Lid body taper part 24 Lid body flange part 25 Air vent 30 Shade part 40 Valve body 41 Valve body taper part 45 Magnet 50 as an element Main body 51 Tubular body 52 Connection port 53 Tubular taper part 54 Cylindrical flange part 56 Vent hole 58 Valve chamber 59 Partition plate 60 as partition part Element holding body 63 Magnet 70 as element Valve body 71 Valve Body taper part 72 Valve 74 Magnet 100 as element Trap

Claims (7)

A main body formed with a connection port connected to the drain pipe, and a vent hole for introducing outside air into the drain pipe;
A valve body capable of opening and closing the vent and being opened by a negative pressure in the drain pipe,
The said valve body and the body, the magnet and the magnet, or by providing a one by one in this element that the magnet and the magnetic body and the pair of elements, order to rebound in order to close the vent by the valve body It is formed to generate the magnetic force of
Ri Na includes a closure pressure adjustable adjustment means to said vent by the valve body by relatively moving the distance between the elements,
The main body has a cylindrical body provided with a connection port and an element, and a lid body provided with a vent hole and attached to the cylindrical body,
The valve body is disposed so as to obtain a closing pressure to the vent hole by being positioned between the lid body and the cylinder side element,
The ventilation valve characterized in that the adjusting means is the lid body mounted on the cylinder body in a state in which the distance to the cylinder body can be adjusted . Lid vents are opened in the cover body tapered portion with that having a lid tapered portion forming a tapered,
When the valve body taper portion overlaps the lid body taper portion, the valve body taper portion that overlaps the inner surface of the lid body taper portion, the element, and the valve body taper portion contact the lid body taper portion as a valve seat. the vent valve of claim 1, wherein it has a ring-shaped valve contact. The lid body is provided with a long guide portion that extends coaxially with the cylinder body into the valve chamber, and a guide groove that is loosely passed through the guide portion is provided at the top of the valve body. Item 3. The vent valve according to Item 2 . The ventilation valve according to any one of claims 1 to 3 , wherein the lid is attached by screwing to the cylindrical body. A main body formed with a connection port connected to the drain pipe, and a vent hole for introducing outside air into the drain pipe;
A valve body capable of opening and closing the vent and being opened by a negative pressure in the drain pipe,
By providing each of the main body and the valve body with a magnet and a magnet, or one of these elements having a magnet and a magnetic body as a pair of elements, the air vent is adsorbed to be closed by the valve body. Formed to generate a magnetic force,
It comprises an adjusting means capable of adjusting the closing pressure to the vent by the valve body by relatively moving the distance between the elements,
The main body includes a cylinder having a connection port and a vent, and an element holder that holds the element and is attached to the cylinder.
The valve body is disposed so as to obtain a closing pressure to the vent hole by being provided on the opposite side of the element holding body across the vent hole,
It said adjusting means, vent valve you characterized in that in perspective adjustable state to said cylindrical body which is the element holder mounted on the cylinder. A cylindrical taper portion with the top facing the element holding portion side mounted on the cylindrical body, and a vent opening established in the cylindrical taper portion;
The valve body comes into contact with the cylindrical taper portion serving as a valve seat when the valve body taper portion is superposed on the inner surface of the cylindrical taper portion, the element, and the valve body taper portion are superposed on the cylindrical taper portion. The vent valve according to claim 5 , further comprising a ring-shaped valve. The ventilation valve according to claim 5 or 6, wherein the element holding body is attached by screwing to the cylindrical body.

Images