JP6260232B2 - Vent valve storage box - Google Patents

Description

  The present invention is, for example, a vent valve storage box that is disposed in a wall of a building and that stores a vent valve therein, and is configured so that the check and replacement of the vent valve can be easily performed. The present invention relates to a valve storage box.

  The drainage pipes provided in the building are connected to drainage facilities such as a restroom, kitchen, and bath. These drainage facilities are each provided with a drainage trap in order to prevent odors from rising in the drainage pipe. However, when the drainage water suddenly flows in the drainage pipe, the inside of the drainage pipe becomes negative pressure on the upstream side, and the sealing water of the drainage trap is sucked and flows out, and the odor enters the room from the drainage pipe. There is a risk of inflow. Therefore, a vent pipe communicating with the drain pipe is provided, and a vent valve is provided at the opening of the vent pipe so as to eliminate the negative pressure state in the drain pipe.

  The vent valve is housed in a box having a square box shape in a state of being housed in the housing, and a window portion is opened on the front surface of the box. This window part faces the opening of the wall. A cover body is detachably attached to the window portion of the box. When checking or replacing the vent valve, the cover body is removed and the housing is taken out from the box.

  This type of vent valve inspection device is disclosed in Patent Document 1, for example. That is, the housing for storing the ventilation valve of the ventilation valve inspection device includes a wall-side extraction opening, an inner surface, an upper surface, both side surfaces, and a lower surface, and a cover body that closes the extraction opening. doing. When the ventilation valve is inspected, replaced, or maintained, after removing the cover body, the ventilation valve is grasped, lifted, pulled out, inspected, and the like.

JP 2001-81825 A

  In the vent valve inspection device of the conventional configuration described in Patent Document 1, when performing inspection, replacement, or maintenance of the vent valve, after removing the cover body, put the hand in the housing and grip the vent valve, When trying to lift, the gap between the upper end of the vent valve and the upper surface of the housing is narrow, so that the vent valve or the hand hits the upper surface of the housing. For this reason, it is necessary to change the hand holding the ventilation valve, which is troublesome, cumbersome, and time consuming.

  Also, when returning the taken out vent valve to the original position after inspection, even if the vent valve is inserted in an inclined state from the take-out opening, and is put upright to return to the original position, the inserted vent valve Since the gap between the upper surface of the housing is narrow, such an operation cannot be easily performed. Therefore, there is a problem that such work is complicated and the work time becomes long.

  Accordingly, an object of the present invention is to provide a ventilation valve storage box that can secure a space for taking out and storing the ventilation valve and can perform the operation easily and quickly.

  In order to achieve the above object, the vent valve storage box according to the first aspect of the present invention contains a vent valve that operates in communication with a drain pipe in a square box-like box attached to a building structure. A vent valve storage box configured such that a housing is supported, a window portion is opened on a front surface of the box, and a cover body is detachably attached to the window portion. At least one surface other than the window portion is an opening, and the cover body is provided with a shielding plate for closing the opening.

  According to a second aspect of the present invention, in the vent valve storage box according to the first aspect, the opening of the box is formed on the upper surface of the box, and the shielding plate is provided on the upper rear surface of the cover body. It is characterized by being.

  A vent valve storage box according to a third aspect of the present invention is the invention according to the first or second aspect, wherein the shielding plate is provided with a restricting portion for restricting the movement of the housing in the box. It is characterized by.

  According to a fourth aspect of the present invention, in the vent valve storage box according to the third aspect, the shielding plate extends from the upper rear surface of the cover body in a direction orthogonal to the cover body, and the restricting portion is shielded. It is provided on the lower surface of the plate so as to have an inverted T-shaped cross section.

The vent valve storage box according to claim 5 is the invention according to any one of claims 1 to 3 , wherein the upper surface and the rear surface of the box are openings, and the shielding plate is formed in a bellows shape. The upper and rear surfaces of the box are configured to be closed, and a guide groove for guiding the side end of the shielding plate is provided on the side surface of the box.

A vent valve storage box according to a sixth aspect of the present invention is the vent valve storage box according to any one of the first to fourth aspects, wherein the shielding plate engages with a housing in which the vent valve is stored. It has the housing engaging part which makes it possible to take out the housing from the inside.

The vent valve storage box of the invention according to claim 7 is the invention according to any one of claims 1 to 6 , wherein a square frame-like support frame is fixed to the front surface of the box. The cover frame is detachably attached to the support frame by a locking portion.

  According to the vent valve storage box of the present invention, it is possible to secure a space for taking out and storing the vent valve, and to perform the operation easily and quickly.

The disassembled perspective view which shows the state which attaches the ventilation valve storage box in 1st Embodiment to a support pillar. The perspective view which shows the state which looked at the cover body which has a shielding board from the back side. Sectional drawing which shows the state which mounted | wore the front surface of the box with the cover body. (A) is sectional drawing which shows the valve closing state of a ventilation valve, (b) is sectional drawing which shows the valve opening state of a ventilation valve. (A) is sectional drawing which shows the state which pushes in the housing which accommodated the ventilation valve by hand in a box, (b) is sectional drawing which shows the state after mounting a housing in a box. The perspective view which shows the state which turned the cover body upside down and engaged the control part of the shielding board with the bottom part of the housing. Sectional drawing which shows the state which engaged the control part of the shielding board of the cover body with the bottom part of the housing. The disassembled perspective view which shows the ventilation valve storage box of 2nd Embodiment, and shows the state which isolate | separated the cover body from the box. The perspective view which shows the state which looked at the cover body which does not have a control part in a shielding board from the back side. Sectional drawing which shows the state which mounted | wore the cover body in the box. The disassembled perspective view which shows the ventilation valve storage box of 3rd Embodiment, and shows the state which isolate | separated the cover body from the box. Sectional drawing which shows the state which mounted | wore the cover body in the box. The disassembled perspective view which shows the ventilation valve storage box of 4th Embodiment, and shows the state which isolate | separated the cover body from the box. (A) is sectional drawing which shows the state which inserted the shielding board of the cover body partway along the guide groove of the box, (b) is the state which completed the insertion of the shielding board of the cover body along the guide groove of the box FIG. The disassembled perspective view which shows the ventilation valve storage box of 5th Embodiment, and shows the state which isolate | separated the cover body and the frame from the box. Sectional drawing which shows the state which mounted | wore the cover body in the box.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.
As shown in FIGS. 1 and 3, a box 12 having a square box shape is attached to a support pillar 11 as a building structure by screwing into a support hole 11 through a screw 14 in a mounting hole 13 on the side surface. It has been. A window portion 15 is opened on the front surface of the box 12, and a housing 17 in which a vent valve 16 is housed can be taken in and out. The upper surface wall 18 of the box 12 is provided so as to have a semicircular protrusion 18 a on the rear side, and the front side is an opening 19 other than the window portion 15.

  As shown in FIG. 5A, the opening 19 of the box 12 facilitates operation by putting a hand or a finger 41 in the box 12 when the housing 17 is taken in or out of the box 12.

  As shown in FIG. 1, a cover body 20 is inserted into a through hole 21 provided on both sides of the window portion 15 of the box 12 with a male screw 22 and screwed into a female screw hole 23 on the front surface of the box 12. The cover body 20 is configured to be detachable from the box 12.

  As shown in FIG. 3, the box 12 is disposed in a space portion between the front wall 43 and the rear wall 44, and the front portion of the box 12 is fitted in the through portion 43 a opened in the front wall 43. . The cover body 20 is attached to the front surface of the box 12, and the through portion 43a of the front wall 43 is concealed.

  As shown in FIGS. 1 and 2, a shielding plate 24 extends rearward on the upper rear surface of the cover body 20 so as to be orthogonal to the cover body 20. A semicircular recess 24 a is provided at the center of the rear edge of the shielding plate 24. And when the shielding plate 24 of the cover body 20 is inserted into the box 12 from the window portion 15 of the box 12, the shielding plate 24 is configured to close the opening portion 19 of the box 12.

  As shown in FIGS. 2 and 3, the lower surface of the shielding plate 24 is provided with a restricting portion 25 having an inverted T-shaped cross section, and when the cover body 20 is mounted on the front surface of the box 12, The movement of the housing 17 based on the positive pressure in the pipe is regulated. The restricting portion 25 includes a support plate 26 that extends right below the lower surface of the shielding plate 24, and a restriction plate 27 that is supported by the support plate 26 and extends in parallel with the shielding plate 24. The rear end of the restriction plate 27 is formed to be longer than the rear end of the support plate 26. The semicircular protrusion 18a provided on the upper surface wall 18 of the box 12 prevents the housing 17 from popping out due to the generation of positive pressure in the drain pipe when the cover body 20 is not attached to the box 12. When the housing 17 is taken out, the housing 17 is prevented from dropping into the space between the front wall 43 and the rear wall 44.

  As shown in FIGS. 2 and 6, both side portions of the semicircular recess 24 a of the shielding plate 24 are formed longer than the regulation plate 27 and the support plate 26 to form housing engaging portions 28. 6 and 7, the cover body 20 is turned upside down and inserted inward from the window portion 15 of the box 12 to be engaged with the bottom portion of the housing 17 in the box 12, so that the housing 17 is It can be lifted and removed from the box 12.

  As shown in FIG. 4A, the bottom wall portion 17a constituting the housing 17 is formed in a bottomed rectangular frame shape, and a connecting socket 30 is connected to a branch pipe 29 of a drain pipe (not shown) at the center thereof. A cylindrical portion 31 connected via the projection protrudes and communicates with the drain pipe. An annular recess 33 in which a seal ring 32 is fitted is provided on the inner periphery of the upper end of the socket 30. When the cylindrical portion 31 of the housing 17 is inserted into the socket 30, the outer peripheral surface of the cylindrical portion 31 is in close contact with the seal ring 32 on the inner peripheral surface of the socket 30 so that the two are sealed. . Further, the upper wall portion 17b constituting the housing 17 is formed in a covered rectangular box shape, and is fitted into the bottom wall portion 17a so that a valve chamber 34 is formed therein.

  A pair of air inlets 35 are provided on both sides of the cylindrical portion 31 in the bottom wall portion 17a so as to suck outside air. An annular valve seat 36 projects from the intake port 35. A cylindrical shaft support cylinder 37 is supported at the center of the valve seat 36. A support shaft 39 provided at the center of a plate-shaped valve body 38 is supported on the shaft support cylinder 37 of the valve seat 36 so as to be movable up and down with a packing 40 interposed.

  Then, as shown in FIG. 4A, the valve body 38 is always positioned on the valve seat 36 via the packing 40 and is closed, and as shown in FIG. During decompression, the valve body 38 is configured to be openable and closable so as to be opened away from the valve seat 36. When the valve body 38 is in the closed state, the packing 40 is interposed between the valve body 38 and the valve seat 36 to improve the sealing performance between the valve body 38 and the valve seat 36, and the odor in the valve chamber 34 is reduced. It is designed not to leak outside.

The vent valve storage box according to the first embodiment includes the box 12, the window portion 15, the opening portion 19, the cover body 20, the shielding plate 24, and the like.
The operation of the vent valve storage box of the first embodiment configured as described above will be described.

  As shown in FIGS. 6 and 7, when the ventilation valve 16 is inspected or replaced, the cover body 20 is removed from the box 12, and the shielding plate 24 is inserted upside down in the direction of the bottom of the housing 17. Then, the housing engaging portion 28 of the shielding plate 24 is engaged with the bottom portion of the housing 17. Then, as shown in FIG. 7, the front edge of the housing engaging portion 28 is engaged with the bottom portion of the housing 17, and at the same time, the outer surface of the shielding plate 24 is engaged with the inner peripheral edge of the front portion of the box 12. The housing 17 can be lifted in the box 12 by rotating the cover body 20 in the direction shown in FIG. The housing 17 in this state can be grasped with the finger 41 and lifted and taken out from the window portion 15 of the box 12.

  Therefore, the ventilation valve 16 in the housing 17 can be inspected or replaced by separating the upper wall portion 17b of the removed housing 17 from the bottom wall portion 17a. Thus, by using the housing engaging portion 28 of the cover body 20, the housing 17 in which the ventilation valve 16 is accommodated can be easily and quickly taken out. At this time, since the opening 19 is provided on the upper surface of the box 12, it is possible to prevent the finger 41 from hitting the upper surface wall 18 when the housing 17 is taken out from the window portion 15 of the box 12. It can be done smoothly.

  Next, after the inspection and replacement of the vent valve 16 are completed, the vent valve 16 is accommodated in the housing 17, and the upper wall portion 17b of the housing 17 is assembled to the bottom wall portion 17a. Then, as shown in FIG. 5A, the housing 17 is grasped with the finger 41, inserted into the box 12 through the window portion 15 of the box 12, and the housing 17 is pressed downward so that the cylindrical portion 31 of the housing 17 is pressed. Insert into socket 30. As shown in FIG. 5B, when the bottom wall portion 17 a of the housing 17 is pressed further downward, the lower end portion of the cylindrical portion 31 of the housing 17 comes into contact with the engagement protrusion 30 a of the socket 30. In this state, the outer peripheral surface of the cylindrical portion 31 of the housing 17 is in close contact with the seal ring 32 of the socket 30, and odor leakage from the drain pipe to the valve chamber 34 is suppressed.

  In this case, since the opening portion 19 is provided on the upper surface of the box 12, it is possible to avoid the finger 41 from hitting the upper surface wall 18 when the housing 17 is inserted from the window portion 15 of the box 12 and pressed downward. The housing 17 can be stored smoothly.

The effects exhibited by the above first embodiment will be described collectively below.
(1) In the vent valve storage box according to the first embodiment, an opening 19 is provided on the upper surface of the box 12 other than the window 15, and a cover plate 20 is provided on the cover body 20 to close the opening 19. It has been. For this reason, it is possible to form a wide working space. When the vent valve 16 is inspected or replaced, the housing 17 in which the vent valve 16 is accommodated can be taken out from the window portion 15 of the box 12 or originally. The work to return can be done promptly and easily.

  Therefore, according to the vent valve storage box of the present embodiment, it is possible to secure a space when the vent valve 16 is taken out and stored, and the work can be performed easily and quickly.

  (2) The opening 19 of the box 12 is formed on the upper surface of the box 12, and the shielding plate 24 is provided on the upper portion of the cover body 20. For this reason, the vertical space by the opening part 19 can be formed in the upper part in the box 12, and work, such as inspection and replacement | exchange of the ventilation valve 16 accommodated in the housing 17, can be most effectively advanced. .

  (3) The shielding plate 24 is provided with a restricting portion 25 that restricts the movement of the box 12. Therefore, the restricting portion 25 can suppress excessive movement of the housing 17 even when the housing 17 is moved by the positive pressure in the valve chamber 34 in the box 12. Moreover, since the control part 25 is provided integrally with the cover body 20, compared with the case where it provides with another body, there is no possibility of forgetting construction or losing. In addition, since the cover body 20 cannot be inserted unless the housing 17 is normally mounted, it is possible to prevent a poor installation of the housing 17.

  (4) The shielding plate 24 extends from the upper rear surface of the cover body 20 in the direction orthogonal to the cover body 20, and the restricting portion 25 has a cross-section reversed by a support plate 26 and a restriction plate 27 on the lower surface of the shielding plate 24. It is provided so as to form a T shape. Therefore, even if the housing 17 moves upward in the box 12, the movement can be received by the restricting plate 27, and the function of the vent valve 16 can be maintained.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment and third to fifth embodiments to be described later, portions different from the first embodiment will be mainly described.

  As shown in FIG. 8, in the vent valve storage box of the second embodiment, the upper surface wall 18 of the box 12 having the semicircular protrusion 18 a is not provided, and the entire upper surface becomes the opening 19. Yes. On the other hand, the shielding plate 24 of the cover body 20 is formed in a square plate shape so as to close the opening 19 of the box 12.

  As shown in FIG. 9, the restricting portion 25 is not provided on the lower surface of the shielding plate 24, and the shielding plate 24 itself is the restricting portion 25. As shown in FIG. 10, the shielding plate 24, which is the restricting portion 25, is provided at a position close to the upper wall portion 17 b of the housing 17 so that the movement of the housing 17 can be restricted. Further, a shielding plate 24 having a square plate shape is a housing engaging portion 28.

  As shown in FIGS. 9 and 10, a slit 12a is formed through the back surface of the box 12, and the rear end portion of the shielding plate 24 is inserted through the slit 12a. The shielding plate 24 is stably supported.

  When checking the ventilation valve 16 or the like, the cover body 20 is turned upside down and the shielding plate 24 is inserted into the inside of the window portion 15 of the box 12, and the housing engaging portion 28 of the shielding plate 24 is inserted into the housing 17. The housing 17 is lifted up in the box 12. In this state, the housing 17 can be lifted by grasping with the finger 41 and taken out from the window portion 15 of the box 12.

  Therefore, the upper wall portion 17b of the housing 17 can be separated from the bottom wall portion 17a, and the ventilation valve 16 accommodated in the housing 17 can be inspected. As described above, the housing 17 in which the ventilation valve 16 is accommodated can be easily and quickly removed using the housing engaging portion 28 of the cover body 20. At this time, since the entire upper surface of the box 12 becomes the opening 19 and a wide space is formed there, the finger 41 can be prevented from hitting an obstacle when the housing 17 is taken out from the window 15 of the box 12, The housing 17 can be taken out more smoothly.

  Next, after the inspection or the like of the vent valve 16 is completed, the housing 17 in which the vent valve 16 is accommodated is grasped by the finger 41, inserted into the box 12 from the window portion 15 of the box 12, and the housing 17 is pressed downward. Then, the cylindrical portion 31 of the housing 17 is fitted into the socket 30.

  At this time, since the opening 19 is provided on the entire top surface of the box 12, it can be avoided that the finger 41 hits an obstacle when the housing 17 is inserted from the window 15 of the box 12 and pressed downward, The housing 17 can be stored more smoothly.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 11 and 12, the opening 19 is not provided on the upper surface of the box 12, and the rectangular opening 19 is provided on each side of the box 12. On the back side of the both sides of the cover body 20, a square plate-like shielding plate 24 extends rearward perpendicularly to the cover body 20, and when the cover body 20 is attached to the front surface of the box 12, the opening of the box 12 It is comprised so that 19 may be covered. A plate-like restricting portion 25 extending inward so as to face each other is provided on the upper inner surface side of both shielding plates 24. Further, both shielding plates 24 serve as housing engaging portions 28.

  When inspecting the ventilation valve 16 or the like, the cover body 20 is turned upside down and the shielding plates 24 are inserted into the inside of the window 15 of the box 12, and the shielding plates 24 are engaged with the bottom of the housing 17. The housing 17 is lifted in the box 12 together, and in this state, both sides of the housing 17 can be pushed by the finger 41 and taken out from the window portion 15 of the box 12.

  Accordingly, it is possible to check the ventilation valve 16 accommodated in the housing 17. Thus, the housing 17 of the vent valve 16 can be easily and quickly taken out by the two shielding plates 24 as the housing engaging portions 28 of the cover body 20. At this time, since both sides of the box 12 become the opening portion 19 and a wide space is formed there, the finger 41 does not hit an obstacle when the housing 17 is taken out from the window portion 15 of the box 12. Can be smoothly taken out.

  Next, after the inspection of the vent valve 16 and the like is completed, both sides of the housing 17 are gripped with fingers 41 and inserted into the box 12, and the housing 17 is pressed downward to place the cylindrical portion 31 of the housing 17 into the socket 30. insert. At this time, since the opening portions 19 are provided on both side surfaces of the box 12, it is possible to avoid the finger 41 from hitting an obstacle when the housing 17 is inserted from the window portion 15 of the box 12 and pressed downward. The housing 17 can be stored smoothly.

(Fourth embodiment)
Next, a fourth embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 13, the upper surface and the back surface of the box 12 are released to form an opening 19. On the upper back side of the cover body 20, a shielding plate 24 configured to be deformable in a bellows shape is extended rearward. Guide grooves 45 extending rearward from the upper position and further downward are provided on the inner surfaces of both side surfaces of the box 12, and when the cover body 20 is attached to the front surface of the box 12, The shielding plate 24 is configured to cover the opening 19 of the box 12. Further, the base end side of the shielding plate 24 is a restriction portion 25, and the distal end side is a housing engagement portion 28.

  As shown in FIG. 14A, when the cover body 20 is attached to the front surface of the box 12, the cover body 20 is placed with both side ends of the shielding plate 24 inserted into the guide grooves 45 of the box 12. By pressing toward the box 12, both end portions of the shielding plate 24 are guided to the guide grooves 45. And as shown in FIG.14 (b), when the cover body 20 is mounted | worn with the front surface of the box 12, the upper surface and back surface of the box 12 are shielded by the shielding board 24. FIG. In this state, the upward movement of the housing 17 is restricted by the shielding plate 24.

  Next, when checking the ventilation valve 16 or the like, when the cover body 20 is pulled forward from the front surface of the box 12, both end portions of the shielding plate 24 are guided by the guide grooves 45 of the box 12, and the shielding plate 24 is moved. Pulled out. For this reason, the upper surface and the back surface of the box 12 are released to form the opening 19. In this state, the housing 17 can be taken out from the box 12 in the same manner as in the first embodiment by using the shielding plate 24 as the housing engaging portion 28.

  At this time, since the upper surface and the rear surface of the box 12 become the opening 19 and a wide space is formed there, the finger 41 hardly hits an obstacle when the housing 17 is taken out, and the housing 17 can be taken out smoothly. Can be done. Accordingly, it is possible to quickly check the ventilation valve 16 accommodated in the housing 17.

  Subsequently, when the housing 17 is stored in the box 12 after the inspection of the ventilation valve 16 or the like is completed, the wide space on the upper surface and the rear surface of the box 12 is used to avoid the finger 41 from hitting an obstacle. Can be stored smoothly.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 15 and 16, a square frame-shaped support frame 46 passes through the through holes 47 at the four corners of the box 12 on the front surface of the box 12 and is screwed into the female screw holes 23 on the front surface of the box 12. Thus, the support frame 46 is configured to be fixed to the front surface of the box 12. A plurality of locking holes 48 are provided on the front surface of the support frame 46, and locking protrusions 49 that are locked to the locking holes 48 of the support frame 46 are provided on the back surface of the cover body 20. The cover body 20 can be attached to and detached from the support frame 46 by a locking portion including a locking hole 48 and a locking projection 49.

  The entire top surface of the box 12 is an opening 19, and the shielding plate 24 of the cover body 20 is formed in a square plate shape so as to cover the opening 19 of the box 12 when the cover body 20 is mounted on the front surface of the box 12. Is formed. The shielding plate 24 serves as a restricting portion 25 and also serves as a housing engaging portion 28.

  As shown in FIG. 15, when the cover body 20 is assembled to the front surface of the box 12, the support frame 46 is first disposed in front of the box 12, and the male screws 22 are inserted into the through holes 47 at the four corners of the support frame 46. The support frame 46 can be fixed to the front surface of the box 12 by penetrating and screwing into the female screw hole 23 on the front surface of the box 12.

  Subsequently, as shown in FIG. 16, the cover body 20 is attached to the support frame 46 so that the locking protrusions 49 on the back surface of the cover body 20 are locked to a plurality of locking holes 48 provided on the front surface of the support frame 46. The cover body 20 is assembled to the support frame 46 by pressing. In this state, the opening 19 on the upper surface of the box 12 can be shielded by the shielding plate 24.

  Thus, in the fifth embodiment, since the support frame 46 is fixed to the front surface of the box 12 and the cover body 20 is configured to be detachable from the support frame 46, the cover body 20 is assembled and removed. It can be done easily and quickly.

It should be noted that the embodiment described above can be modified and embodied as follows.
The opening 19 may be formed by the top surface of the box 12 and at least one side surface, or may be formed by at least one side surface of the box 12 and the back surface. Alternatively, the opening 19 can be formed on the lower surface of the box 12. In these cases, the shielding plate 24 of the cover body 20 is configured to shield the opening 19 of the box 12.

As the restricting portion 25, the restricting plate 27 may be omitted, and only the support plate 26 may be configured.
In the fifth embodiment, the support frame 46 is omitted, a locking hole 48 is provided on the front surface of the box 12, and the locking protrusion 49 of the cover body 20 is locked to the locking hole 48 of the box 12. May be.

  -You may comprise so that the cover which closes the hole of the bottom face of the box 12 may be provided in the state which took out the housing 17 from the inside of the said box 12. FIG.

  DESCRIPTION OF SYMBOLS 11 ... Support pillar as a structure, 12 ... Box, 15 ... Window part, 16 ... Ventilation valve, 17 ... Housing, 19 ... Opening part, 20 ... Cover body, 24 ... Shielding plate, 25 ... Restriction part, 26 ... Support Reference numeral 27: Restricting plate, 28: Housing engaging part, 45: Guide groove, 46: Support frame, 48: Locking hole as locking part, 49: Locking protrusion as locking part.

Claims (7)

A square box shaped box attached to the building structure supports a housing containing a vent valve that communicates with the drain pipe and operates. A window is opened on the front of the box. Is a vent valve storage box configured to be detachably mounted with a cover body,
A box for storing a vent valve, wherein at least one surface other than the window portion of the box is an opening, and the cover body is provided with a shielding plate for closing the opening. The ventilation valve storage box according to claim 1, wherein the opening of the box is formed on the upper surface of the box, and the shielding plate is provided on the upper back surface of the cover body. The ventilation valve storage box according to claim 1, wherein the shielding plate is provided with a restriction portion that restricts the movement of the housing in the box. The shield plate extends from the upper back surface of the cover body in a direction orthogonal to the cover body, and the restricting portion is provided on the lower surface of the shield plate so as to have an inverted T-shaped cross section. Item 4. A vent valve storage box according to Item 3. The upper surface and the back surface of the box are openings, and the shielding plate is formed in a bellows shape so as to close the upper surface and the back surface of the box, and a guide groove that guides the side edge of the shielding plate on the side surface of the box The vent valve storage box according to any one of claims 1 to 3 , wherein a vent valve storage box is provided. The shielding plate, any one of claims 1 to claim 4, characterized in that it comprises a housing engaging portion for enabling removal of the housing from the box engages the housing where the vent valve is housed The ventilation valve storage box described in the item The front of the box, with a rectangular frame-like supporting frame is fixed, any of claims 1 to 6, the cover body to the support frame, characterized in that the removably attached by a locking portion The ventilation valve storage box according to claim 1.