JP6253452B2 - Exhaust valve and exhaust valve device - Google Patents

Description

  The present invention relates to an exhaust valve and an exhaust valve device provided in an upper opening of a rising pipe connected to a drain pipe.

  Conventionally, a lid that closes a riser pipe connected to a drainage pipe buried in the ground is sometimes provided with an air vent that releases the pressure in case the pressure of the drainage pipe increases for some reason. (For example, see Patent Document 1). As shown in FIG. 9, the air vent 22 is bonded and fixed to the through hole 21 a of the lid 21, and has a flat main body 23 and a lower main body 23 extending downward from the main body 23. It comprised from the pipe part 24 inserted in the hole 21a. The air vent 22 is formed with a vent passage 25 extending from the lower end of the pipe portion 24 to the side surface of the main body 23, and the vent passage 25 is provided with a valve body 26 for opening and closing the vent passage 25. It was. Here, the air vent body 22 has a cover portion 22a that covers the upper surface side of the valve body 26, and the valve body 26 could be protected by the cover portion 22a.

JP 9-328793 A

  By the way, in the said conventional air vent body 22 (exhaust valve), although the valve body 26 is provided, since it has the cover part 22a which covers the upper surface side of the valve body 26, the valve body 26 cannot be removed, Replacing the valve body 26 and cleaning the air passage 25 has been difficult.

  The present invention has been made in order to solve the above-described conventional drawbacks. The object of the present invention is to remove the valve body and replace the valve body or clean the air passage while the cover is provided. It is an object of the present invention to provide an exhaust valve and an exhaust valve device.

In order to achieve the above object, an exhaust valve and an exhaust valve device according to the present invention have the following configuration. That is,
An exhaust valve according to the first aspect of the present invention is an exhaust valve that is fixed to a through hole formed in a lid that closes an upper opening of a riser pipe connected to a drain pipe, and includes a main body and a valve body A unit and a cover are provided. The main body includes a fixing portion that is fixed to the through hole, and an air passage that communicates the front and back of the lid through the through hole . The valve body unit, said upwardly at the upper surface is a front surface of the lid, a valve to open the vent passage is open operates by receiving increased pressure from the drain line while closing the vent passage A body and a valve support that supports the valve body. And the said cover part covers the upper surface side of the said valve body in the front side of the said cover body, and the cover part is provided with the exhaust port which connects the said ventilation path outside to the side part. Then, the said valve body is detachable with respect to the said main body from the back side of the said cover body with the said valve body unit .

According to this exhaust valve, the exhaust valve is fixed to the through hole of the lid that closes the upper opening of the riser pipe. The exhaust valve includes a main body, and the main body includes an air passage that communicates the front and back of the lid through the through hole . The exhaust valve includes a valve body unit, and the valve body unit includes a valve body that closes and opens the vent passage, and a valve support that supports the valve body. Further, the exhaust valve includes a cover portion that covers the upper surface side of the valve body. Here, since the valve body closes and opens the air passage above the upper surface of the lid body, rainwater hardly enters the inside of the lid body even when the air passage is opened. And since the valve body can be attached to and detached from the main body from the back side of the lid body together with the valve body unit, the lid body is lifted off from the riser pipe, and the valve body is backside the lid body together with the valve body unit. Can be removed from.

Further, the exhaust valve according to the invention of claim 2, an exhaust valve according to claim 1, before Symbol body has a fitted main body tube portion in said through-hole is formed in a hollow cylindrical shape, the body A cover portion extending from the tube portion. And the said main body cylinder part has the said fixing | fixed part which consists of a fixed surface fixed to the said through-hole on the outer surface. Moreover, the said valve support body is separable from the said valve body. The valve body unit is inside the body that is fixed to the front Symbol lid, removably mounted so as to be inserted from the rear side of the lid. According to the exhaust valve, but removing the valve body from the back side of the valve body unit each lid, at the valve body unit, to separate the valve body from the valve support, it can be removed valve.

  According to a third aspect of the present invention, there is provided an exhaust valve according to the second aspect of the present invention, wherein the valve support is a support cylinder formed in a hollow cylindrical shape so that the inside thereof constitutes the ventilation path. And a construction part that is constructed inside the support cylinder part and supports the valve body.

  An exhaust valve according to a fourth aspect of the present invention is the exhaust valve according to the second or third aspect, wherein the valve body is formed of a soft material and is partially fixed to the valve support body. Thus, the opening operation is performed by its own deformation.

  An exhaust valve according to a fifth aspect of the present invention is the exhaust valve according to any one of the second to fourth aspects, wherein the main body cylinder portion is provided on the periphery of the through hole on the upper surface of the lid body. A latching portion to be latched is provided so as to overhang.

  An exhaust valve according to a sixth aspect of the present invention is the exhaust valve according to any one of the second to fifth aspects, wherein the valve body is supported in a shaft shape supported by the valve support body. And a closed portion that extends from the supported portion and has a lower surface that abuts against the upper surface of the valve support to close the vent passage.

An exhaust valve device according to the invention described in claim 7 includes a lid that closes the upper opening of the riser pipe that is connected to the drain pipe, a vent passage that communicates the front and back of the lid, a valve body, and a cover. And a valve support that supports the valve body . Here, the valve body closes the air passage above the upper surface, which is the surface on the front side of the lid, and opens to receive the increased pressure from the drain pipe to open the air passage. Open. And the said cover part covers the upper surface side of the said valve body in the front side of the said cover body, and the cover part is provided with the exhaust port which connects the said ventilation path outside to the side part. Then, the said valve body is detachable with respect to the said cover body from the back side of the said cover body with the said valve support body .

According to this exhaust valve device, the exhaust valve device includes a lid that closes the upper opening of the riser, a vent that communicates the front and back of the lid, a valve that closes and opens the vent, The cover part which covers the upper surface side of the valve body, and the valve support body which supports a valve body are provided. Here, since the valve body closes and opens the air passage above the upper surface of the lid body, rainwater hardly enters the inside of the lid body even when the air passage is opened. And since the valve body can be attached to and detached from the lid body from the back side of the lid body together with the valve support body, the lid body is lifted off from the riser pipe, and the valve body is removed together with the valve support body. It can be removed from the back side.

  According to the exhaust valve and the exhaust valve device according to the present invention, since the valve body is detachable from the back side of the lid body, the valve body is removed and the valve body is replaced or vented while the cover is present. Can be cleaned.

It is a longitudinal section showing the whole of one embodiment of this invention. Similarly, it is a longitudinal sectional view showing a state in which the air passage is closed. Similarly, it is a longitudinal cross-sectional view which shows the state by which the ventilation path was open | released. Similarly, it is a perspective view of an exhaust valve. Similarly, it is a longitudinal cross-sectional view of a valve body unit. Similarly, it is a perspective view of a valve body unit. Similarly, it is a perspective view of a valve support. Similarly, it is a perspective view of a valve element. It is a longitudinal cross-sectional view which shows the conventional air vent body.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the exhaust valve and exhaust valve apparatus which concern on this invention is demonstrated based on drawing.

  1 to 8 show an embodiment of the present invention. Reference numeral 1 in the figure indicates a riser pipe connected to a drainage pipe (not shown) buried in the ground, and this riser pipe 1 is, for example, a drainage pipe connecting a drainage facility of a house and a sewage main pipe. On the other hand, it consists of a drainage basin connected to the drainage pipe. Reference numeral 2 denotes a lid that closes the upper opening of the riser 1. Reference numeral 3 denotes an exhaust valve fixed to a through hole 2 a formed in the lid 2. Reference numeral 4 denotes an exhaust valve device.

  The exhaust valve 3 includes a fixing portion 5 that is fixed to the through hole 2 a of the lid body 2, an air passage 6, a valve body 7, and a cover portion 8. The exhaust valve device 4 includes the lid body 2, the air passage 6, the valve body 7, and a cover portion 8.

  Here, the air passage 6 communicates the front and back of the lid 2 (specifically, the front and back of the lid 2 are communicated through the through hole 2a of the lid 2). The valve body 7 closes the air passage 6 above the upper surface 2b, which is the front surface of the lid body 2 (see FIG. 2), and opens to receive the increased pressure from the drainage pipe. 6 is opened (see FIG. 3). The cover portion 8 covers the upper surface side of the valve body 7 on the front side of the lid body 2, and the cover portion 8 is provided with an exhaust port 8 a that communicates the ventilation path 6 with the outside. Therefore, the valve body 7 is detachable from the back side of the lid body 2.

  Specifically, the exhaust valve 3 includes a main body 9 and a valve body unit 10. Here, the main body 9 includes a main body cylinder portion 9a that is formed in a hollow cylinder shape and is fitted into the through hole 2a of the lid body 2, and the cover portion 8 that extends from the main body cylinder portion 9a. And the main body cylinder part 9a has the said fixing | fixed part 5 which consists of a fixed surface fixed to the through-hole 2a of the cover body 2 by adhesion | attachment etc. in the outer surface. On the other hand, the valve body unit 10 includes the valve body 7 and a valve support body 11 that supports the valve body 7 and is separable from the valve body 7, and is provided in the lid body 2 (specifically, the through hole 2a). It is detachably attached to the inside of the fixed main body 9 so as to be inserted from the back side of the lid 2.

  Specifically, as shown in FIG. 1, the lid 2 is attached to the upper opening of the riser 1 via the receiving frame 12. Here, the receiving frame 12 is, for example, formed in an annular shape and fixed to the upper end of the cylindrical riser 1 by bonding or the like. The receiving frame 12 includes a first frame portion 12a that is fitted to the riser 1, and a second frame portion 12b that is larger in diameter than the first frame portion 12a and extends upward. And as for the receiving frame 12, the inner step which moves to the 2nd frame part 12b from the 1st frame part 12a becomes the receiving surface 12c on which the cover body 2 is mounted.

  The lid 2 is formed in a disk shape and closes the inside of the receiving frame 12 leaving the through hole 2a, and is inserted into the receiving frame 12 and placed on the receiving surface 12c (see FIG. 1). The through hole 2a is located at the center of the lid body 2 and penetrates the lid body 2 up and down. Although this through-hole 2a is opened with the cutting tools, such as a drill, with respect to the existing cover body 2 without the through-hole 2a, you may be provided in the cover body 2 from the beginning. The lid body 2 has an extending portion 2 c that extends downward so as to face the first frame portion 12 a of the receiving frame 12. And the sealing packing 13 is provided between the extension part 2c and the 1st frame part 12a.

  In the exhaust valve 3, the main body 9 is provided in the main body cylinder portion 9 a so that a hooking portion 9 b that hooks around the periphery of the through hole 2 a in the upper surface 2 b of the lid 2 projects in a ring shape. And the latching | locking part 9c is recessed and formed in the inner surface of the main body cylinder part 9a in the main body cylinder part 9a. The cover portion 8 includes a top wall 8b and a connecting wall 8c that connects the periphery of the top wall 8b and the upper end of the main body cylinder portion 9a. The connecting wall 8c is provided with the exhaust port 8a (in the illustrated embodiment, a plurality of exhaust ports 8a and 8a).

  The valve support 11 includes a support cylinder portion 11 a formed in a hollow cylinder shape so that the inside forms the ventilation path 6, and a bridge that supports the valve body 7 by being installed inside the support cylinder portion 11 a. Part 11b. Here, the upper end surface of the support cylinder portion 11 a becomes a seat surface 11 c with which the valve body 7 abuts, and the seat surface 11 c is positioned above the upper surface 2 b of the lid body 2. And in the support cylinder part 11a, the to-be-latched part 11d protrudes and forms in the outer surface of the support body cylinder part 11a, and the latching | locking part 9c of the main body 9 latches this to-be-latched part 11d. The valve support 11, that is, the valve body unit 10 is held so as not to come out from the main body 9. Specifically, the support cylinder portion 11a is provided with slits 11e and 11e that reach the lower end vertically so as to sandwich the locked portion 11d, and an elastic piece 11f is formed between the slits 11e and 11e. . The locked portion 11d is provided below the elastic piece 11f. Therefore, the valve support 11 (that is, the valve body unit 10) can be attached to and detached from the main body 9 by the bending deformation of the elastic piece 11f.

  An airtight packing 14 is provided between the outer surface of the support cylinder portion 11a and the inner surface of the main body cylinder portion 9a. Specifically, a ring-shaped groove 11g is formed on the outer surface of the support cylinder portion 11a, and the hermetic packing 14 is fitted and held in the groove 11g.

  The erection part 11b includes a base part 11h positioned at the center portion of the support cylinder part 11a, and erection pieces 11i extending radially from the base part 11h to the inner surface of the support cylinder part 11a (in the illustrated embodiment, a plurality of installation parts 11i For example, it has four installation pieces 11i, 11i) (see FIG. 7). Therefore, a support hole 11j for supporting the valve body 7 is opened in the base portion 11h.

  The valve body 7 is formed so as to expand from the shaft-supported portion 7a supported by the valve support 11 and the supported portion 7a. And a closing portion 7b to be closed. In the illustrated embodiment, the supported portion 7 a of the valve body 7 is inserted into the support hole 11 j in the valve support body 11 from above, and the valve body 7 is supported by the valve support body 11. And the valve body 7 isolate | separates from the valve support body 11 by extracting the to-be-supported part 7a from the support hole 11j. Further, the closing portion 7b of the valve body 7 is formed in a circular flat plate shape, and the lower surface (specifically, the lower surface of the peripheral portion of the closing portion 7b) is on the upper surface of the valve support 11 (specifically, the aforementioned seating surface 11c). By abutting, the air passage 6 is closed.

  Specifically, the valve body 7 is formed of a soft material such as rubber or a soft resin, and is supported by a part of the valve support 11 so as to be fixed, and opens by its own deformation. In the illustrated embodiment, the supported portion 7a of the valve body 7 is provided with an engagement projection 7c that engages with the lower end periphery of the support hole 11j in the valve support 11, and the engagement projection 7c The supported portion 7a is fixed to the support hole 11j. Thus, the supported portion 7a, which is a part of the valve body 7, is fixed to the support hole 11j of the valve support 11, and the closed portion 7b receives the increased pressure from the drainage pipe, and the outer peripheral side is upward. It bends and deforms so as to be displaced, that is, opens (see FIG. 3). When the valve body 7 is attached to or detached from the valve support body 11, the supported portion 7a is pulled or pushed into the support hole 11j, so that the supported portion 7a or the engagement protrusion 7c is obtained. By deforming, the engaging projection 7c passes through the support hole 11j.

  Next, the operation and effect of the exhaust valve 3 and the exhaust valve device 4 having the above configuration will be described. The exhaust valve 3 is fixed to the through hole 2 a of the lid 2 that closes the upper opening of the riser 1. The exhaust valve 3 includes an air passage 6 that communicates the front and back of the lid 2 through the through hole 2a, a valve body 7 that closes and opens the air passage 6, and an upper surface side of the valve body 7. And a cover portion 8 for covering. On the other hand, the exhaust valve device 4 includes a lid 2 that closes the upper opening of the riser 1, a vent 6 that communicates the front and back of the lid 2, and a valve 7 that closes and opens the vent 6. And a cover 8 that covers the upper surface side of the valve body 7.

  Therefore, when the pressure in the drainage pipe and the riser pipe 1 increases for some reason, the valve body 7 opens and the ventilation path 6 communicates with the outside, and the increased pressure can be released. Can prevent the backflow of the drainage pipe, prevent the drainage pipe flow from stagnation due to a double trap or the like, or prevent the lid 2 from jumping out of the riser pipe 1. it can. And since the valve body 7 is covered and protected by the cover part 8, even if an object etc. are mounted on it, the action | operation of the valve body 7 is not impaired.

  Further, the valve body 7 closes or opens the air passage 6 above the upper surface 2 b of the lid body 2. For this reason, even if the ventilation path 6 is opened, it is difficult for rainwater to enter the lid 2. The valve body 7 is detachable from the back side of the lid body 2. For this reason, the lid body 2 can be lifted off from the riser 1 and the valve body 7 can be removed from the back side of the lid body 2. That is, since the valve body 7 is detachable from the back side of the lid body 2, the valve body 7 is removed and the valve body 7 is replaced or the air passage 6 is cleaned while the cover 8 is present. Can do.

  In addition, since the valve body 7 is covered with the cover portion 8, the amount of bending deformation of the valve body 7 (specifically, the closing portion 7b) can be limited to a certain range by the cover portion 8. For this reason, after the valve body 7 is opened by receiving the increased pressure, when the pressure decreases and the valve body 7 returns, the return can be performed reliably.

  The valve body 7 exists as a part of the valve body unit 10. For this reason, when removing the valve body 7, the lid body 2 is lifted and removed from the riser 1, and the valve body 7 is removed together with the valve body unit 10 from the back side of the lid body 2. In the valve body unit 10, the valve body 7 can be removed by separating the valve body 7 from the valve support 11.

  In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible. For example, the drainage pipe line to which the riser pipe 1 is connected may be other drainage pipes such as the sewage main pipe itself, instead of the pipe line connecting the drainage facility of the house and the sewage main pipe.

  Further, the valve support 11 has a support cylinder portion 11a formed in a hollow cylinder shape, but the support cylinder portion 11a may be a support ring portion formed in a ring shape.

  Further, the valve body 7 has a fan-like shape so that, for example, the closed portion 7b is not formed so as to expand in a circular shape from the supported portion 7a, but is provided between the adjacent erected pieces 11i and 11i in the valve support body 11, for example. The valve body 7 may be provided individually between the installation pieces 11i and 11i.

  Further, the valve body 7 may be formed of a hard material without being formed of a soft material, and may be closed or opened by moving the entirety of the valve body 7.

  In the exhaust valve device 4, the main body 9 may be formed integrally with the lid body 2 without being formed separately from the lid body 2.

DESCRIPTION OF SYMBOLS 1 Rise pipe 2 Lid 2a Through-hole 2b Upper surface 3 Exhaust valve 4 Exhaust valve device 5 Fixed part 6 Ventilation path 7 Valve body 7a Supported part 7b Closed part 8 Cover part 8a Exhaust port 9 Main body 9a Main body cylinder part 9b Latch part DESCRIPTION OF SYMBOLS 10 Valve body unit 11 Valve support body 11a Support body cylinder part 11b Construction part

Claims (7)

An exhaust valve fixed to a through hole formed in a lid that closes an upper opening of a riser pipe connected to a drain pipe,
A main body comprising: a fixing portion fixed to the through hole; and a vent path communicating with the front and back of the lid through the through hole ;
A valve body that closes the vent path and receives an increased pressure from the drain pipe to open and opens the vent path above an upper surface that is a front side surface of the lid; and the valve A valve body unit comprising a valve support for supporting the body;
A cover portion provided on the front side of the lid body with an exhaust port that covers the upper surface side of the valve body and communicates the ventilation path to the outside on the side.
The said valve body is an exhaust valve which can be attached or detached with respect to the said main body from the back side of the said cover body with the said valve body unit . Before SL body includes a fitted main body tube portion in said through-hole is formed in a hollow cylinder, and said cover portion extending from the main body tube portion, said main body tube portion, the outer surface thereof, Having the fixing portion consisting of a fixing surface fixed to the through hole;
The valve support is separable from the valve;
The valve body unit is inside the body that is fixed to the front Symbol lid, removably mounted so as to be inserted from the rear side of the lid, an exhaust valve according to claim 1.   The valve support includes a support cylinder part formed in a hollow cylinder shape so that the inside forms the ventilation path, and an installation part that is installed inside the support cylinder part and supports the valve element. The exhaust valve according to claim 2.   The exhaust valve according to claim 2 or 3, wherein the valve body is made of a soft material, is supported so that a part thereof is fixed to the valve support body, and performs an opening operation by its own deformation.   The exhaust valve according to any one of claims 2 to 4, wherein a hooking portion that hooks around the periphery of the through hole on the upper surface of the lid is provided on the main body cylinder portion.   The valve body includes a shaft-shaped supported portion supported by the valve support, and a block formed by extending from the supported portion and having a lower surface abutting against the upper surface of the valve support to close the vent passage The exhaust valve according to any one of claims 2 to 5, further comprising a portion. A lid that closes the upper opening of the riser pipe connected to the drainage pipe;
An air passage communicating the front and back of the lid,
A valve body that closes the air passage above the upper surface, which is a surface on the front side of the lid, and opens the air passage by opening operation in response to increased pressure from the drain pipe;
A cover part provided with an exhaust port that covers the upper surface side of the valve body on the front side of the lid body and communicates the ventilation path to the outside on the side ;
A valve support for supporting the valve body ,
The said valve body is an exhaust valve apparatus which can be attached or detached with respect to the said cover body from the back side of the said cover body with the said valve support body .

Images