JP3214457U - Drainage member and drainage structure using the same - Google Patents

Abstract

A drainage member capable of reducing the cost of a member used for laying by reducing the laying process and a drainage structure using the drainage member. A drainage member includes a cylindrical inner cylinder part, an outer cylinder part formed in a cylindrical shape larger in diameter than the inner cylinder part, an outer cylinder part, and an inner cylinder part. It can be arranged on the drainage hardware main body 30 having the bottom plate portion 303 to be connected. The drainage member 40 includes a drainage passage forming portion 50 that forms a drainage passage 5 that circulates drainage in a cylindrical shape, an inflow portion formation portion 60 that forms an inflow portion 2 that allows drainage to flow into the drainage passage 5 side, and a drainage passage formation. And a check valve 10 that is disposed in the portion 50 and flows the drainage downstream, and the drainage passage forming portion 50 is formed so that the check valve 10 can be loosely fitted on the inner peripheral side, and the inner cylinder It is formed so as to be loosely fitted on the inner peripheral side of the portion 301. [Selection] Figure 1

Description

The present invention relates to a drainage member having a simple structure that can be used for existing facilities and easy to maintain, and a drainage structure using the drainage member.

  As a conventional drainage structure, there has been one described in Patent Document 1 previously filed by the present applicant. According to this, the drainage metal fitting which has a cylindrical inner cylinder part, the outer cylinder part formed in the cylindrical shape larger diameter than an inner cylinder part, and the baseplate part which connects an outer cylinder part and an inner cylinder part A drainage structure including a main body, wherein a cylindrical outer auxiliary member is disposed outside the inner cylinder portion, and is connected to an old drainage passage portion on the inner peripheral side of the inner cylinder portion and above the upper end surface of the inner cylinder portion An extended drainage passage portion extending to the inner peripheral side of the outer auxiliary member is formed, a cylindrical inner auxiliary pipe is disposed inside the inner cylindrical portion, and the inner auxiliary pipe has an upper end portion on the inner peripheral surface of the outer auxiliary member. The inflow portion is formed of a filler and is connected to the upper end opening end surface of the outer auxiliary member to allow the drainage to flow into the upper end opening of the outer auxiliary member, and the drainage flows through the upper end opening of the outer auxiliary member downstream. The valve member to be made was arranged.

  Thereby, by arranging the cylindrical inner auxiliary pipe on the inner peripheral surface side of the inner cylinder portion, it is possible to prevent the drainage from adhering to the inner peripheral surface side of the inner cylinder portion, and the progress of corrosion of the inner cylinder portion. As a result, the inner cylinder of the drainage hardware body can be stored for a long time.

Japanese Patent Application Laid-Open No. 2011-157813

  However, in the above drainage structure, a cylindrical outer auxiliary member is disposed outside the inner cylinder part, and is connected to the old drainage passage part on the inner peripheral side of the inner cylinder part and above the upper end surface of the inner cylinder part. An extended drainage passage portion is formed on the inner peripheral side of the outer auxiliary member, and a cylindrical inner auxiliary pipe is disposed on the inner peripheral surface side of the inner cylinder portion immediately before or immediately after the extended drainage passage portion forming step. Filler is filled outside the upper end of the outer auxiliary member to form an inflow part for allowing drainage to flow into the upper end opening of the outer auxiliary member, which increases the number of laying steps and may increase the cost of the member used for laying. There was a need to reduce man-hours and costs.

  In view of the above circumstances, an object of the present invention is to provide a drainage member that can reduce the cost of a member used for laying by reducing the laying process and a drainage structure using the drainage member.

The invention according to claim 1 is a bottom plate that connects a cylindrical inner cylinder part, an outer cylinder part formed in a cylindrical shape larger in diameter than the inner cylinder part, and the outer cylinder part and the inner cylinder part. And
It can be placed on the drainage hardware body having
A drainage passage forming portion that forms a drainage passage that circulates drainage in a cylindrical shape, an inflow portion formation portion that forms an inflow portion that allows wastewater to flow into the drainage passage side, and a drainage passage that is disposed in the drainage passage formation portion. A check valve that circulates downstream,
The drainage passage forming portion is formed so that the check valve can be loosely fitted on the inner peripheral side, and can be loosely fitted on the inner peripheral side of the inner cylinder portion.

  According to this, the drainage passage forming portion can be loosely fitted to the inner peripheral side of the inner cylinder portion of the drainage hardware body to form a drainage passage through which the drainage flows, and the inflow portion forming portion can move to the drainage passage side. An inflow portion into which drainage can flow can be formed. Therefore, it is possible to reduce the cost of the member used for laying by reducing the laying process.

  Further, a position adjusting member is disposed on the outer peripheral surface of the drainage passage forming portion, and the position adjusting member is formed in a cylindrical shape capable of forming a gap with the outer peripheral surface of the drainage passage forming portion. In addition, a drain hole is formed at the lower end portion so as to be connected to the upper end portion of the inner cylinder portion, and allows drainage to flow from the outer peripheral surface side to the inner peripheral surface side.

  According to this, the drainage stored in the region surrounded by the inner cylinder part, the outer cylinder part, and the bottom plate part, the drainage hole formed in the position adjustment member, the inner cylinder part and the drainage passage forming part The drainage can be circulated through a gap between the drainage pipe and the drainage pipe connected to the inner cylinder portion.

  Further, the inflow portion forming portion is formed in a cylindrical shape on the outside of the drainage passage forming portion so that a gap can be formed between the drainage passage forming portion and the upper end of the inner cylinder portion at the lower end portion. A continuous portion that can be connected to the portion is disposed, and a drain hole that allows the drainage to flow from the outer peripheral surface side to the inner peripheral surface side is formed in the continuous portion.

  According to this, the inner cylinder part and the drainage passage forming part are formed by draining holes formed in the continuous part for drainage stored in the region surrounded by the inner cylinder part, the outer cylinder part, and the bottom plate part. The drainage can be circulated through the gap between the inner cylinder part and the drainage pipe connected to the inner cylinder part.

  Further, on the inner surface of the inflow portion forming portion, a support surface that supports a strainer having a cylindrical tube portion that collects dust and a plate portion that extends outward from the outer peripheral surface of the tube portion. Is formed, and the plate portion is disposed on the support surface.

  According to this, the strainer has a configuration in which air enters from the cylindrical portion and air easily enters the check valve at the time of positive pressure. In addition, the upper surface of the plate part and the outer peripheral surface of the cylinder part can reduce the entry of dust into the check valve and collect the dust, prevent contamination of the drainage passage forming part and the drainage pipe, The inflow part can be cleaned only by replacing and cleaning the strainer.

  Further, the lower surface of the plate portion and the outer peripheral surface of the cylinder portion can reduce the discharge of the odor generated in the drain pipe during negative pressure from the inflow portion forming portion.

  According to the fifth aspect of the present invention, the cylindrical inner cylinder part, the outer cylinder part formed in a cylindrical shape larger in diameter than the inner cylinder part, and the outer cylinder part and the inner cylinder part are connected. A drainage metal body having a bottom plate part, and the drainage member according to any one of claims 2 to 4, wherein the drainage passage forming part is arranged inside the inner cylinder part and connected to a drainage pipe. A drainage passage is formed, and an auxiliary inflow portion forming portion formed of a filler is extended from the upper end opening edge of the inflow portion forming portion to the outside and upward, and the inflow portion forming portion, The auxiliary inflow portion forming portion forms an inflow portion for allowing the drainage to flow into the drainage passage side.

  It can be set as the drainage structure which shows the effect of said drainage member.

  Moreover, it is a case where the drainage member of Claim 2 is used, Comprising: Furthermore, the drainage structure by which the said position adjustment member is connected with the upper end part of the said inner cylinder part in a lower end part, or Claim 3 It is a case where the drainage member of description is used, Comprising: It can also be set as the drainage structure by which the said connection part is connected with the upper end part of the said inner cylinder part in a lower end part.

  Further, in the case of claims 6 and 7, a drainage pipe connection port extending from the inner cylinder part and connected to the drainage pipe is provided, the drainage pipe connection port and the drainage pipe are connected, and the drainage An update drain pipe is extended at the end of the passage forming section opposite to the inflow section forming section, and the update drain pipe is loosely fitted on the inner peripheral side of the drain pipe. You can also.

  If it is such a structure, it can be used suitably for repair etc. of the drainage system arrange | positioned between floor surfaces other than a ground floor and a ceiling. In particular, it can be suitable when the drain pipe is renewed.

It is sectional drawing of the state in which the drainage structure of one Embodiment of this invention was installed. It is a perspective view of the check valve of the drainage structure of the embodiment. It is a disassembled sectional view of the check valve of the drainage structure of the embodiment. FIG. 3 is a partially enlarged view of a valve portion of the check valve of FIG. 2. FIG. 3 is a bottom view of FIG. 2. It is a front view of a drainage member. (A) is a top view of a strainer, (b) VIIb-VIIb arrow sectional drawing. It is explanatory drawing of the state which (a) the existing drain trap was installed of the repair method of the drainage metal fittings of this invention, and the state which removed the (b) spear. It is explanatory drawing of a continuation of FIG. It is explanatory drawing of a continuation of FIG. It is explanatory drawing of a continuation of FIG. It is explanatory drawing of a continuation of FIG. It is explanatory drawing of the function of the drain hole of a position adjustment member. (A) is explanatory drawing of the function of the drainage structure at the time of negative pressure, (b) is at the time of positive pressure. It is sectional drawing of the state in which the drainage structure of the modification was installed.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In the following description, the drainage pan 7 side to be described later is the upper side, and the drainage pipe 3 side is the lower side.

  As shown in FIG. 1, a drainage structure 1 is arranged on a bathroom T in the facility and a floor surface T in the toilet.

  As shown in FIG. 1, the drainage structure 1 is generally drainage connected to a drain pipe 3 and an inflow portion 2 formed to allow drainage to flow from the upper end edge toward the lower end side (downstream side). A pipe connection port 4, a drainage passage 5 that communicates the inflow portion 2 and the drainage pipe connection port 4, and a check valve 10 that is disposed in the drainage passage 5 and distributes wastewater to the drainage pipe 3 side. .

  On the upper end side of the drainage structure 1, there are arranged a pan tray receiver 8 that supports a drain pan plate 7 through which drainage passes and an adjustment pipe 9 that adjusts the height of the drainage structure 1. In the drain pan 7, a plurality of insertion grooves 701 are formed to allow drainage to flow. The adjustment tube 9 is screwed at a lower end portion with a female screw portion 305 of an outer cylinder portion 302 described later.

  On the lower end side of the drainage structure 1, an existing metal drainage hardware body 30 having a drainage pipe connection port 4 is disposed (see FIG. 8A). The drainage hardware main body 30 includes a cylindrical inner cylinder portion 301, an outer cylinder portion 302 formed in a cylindrical shape larger in diameter than the inner cylinder portion 301, and a bottom plate that connects the outer cylinder portion 302 and the inner cylinder portion 301. A portion 303, a collar portion 304 extending radially outward from the outer peripheral surface of the outer cylinder portion 302, and a drain pipe connection port 4 that extends downward from the inner cylinder portion 301 and is connected to the drain pipe 3. Yes.

  A waterproof layer 38 is formed on the upper side of the collar portion 304. A plurality of drain holes 304 a are formed at the base portion of the collar portion 304. The drainage hole 304a is formed so that drainage flowing from the waterproof layer 38 flows into the hollow portion 36 of the drainage hardware body 30 described later. A female screw portion 305 that is screwed into the adjusting tube 9 is formed at the upper end portion of the outer cylinder portion 302 of the drainage hardware main body 30. On the inner peripheral surface of the drainage pipe connection port 4 of the drainage hardware body 30, a female thread portion 306 for fastening the drainage pipe 3 with screws is formed.

  The drainage member 40 that forms the drainage passage 5 and is disposed in the drainage hardware body 30 includes a drainage passage forming portion 50 that forms the drainage passage 5 and the drainage passage 5 side, as shown in FIGS. And an inflow portion forming portion 60 for forming the inflow portion 2 for allowing the drainage to flow into the water.

  The drainage passage forming part 50 is made of vinyl chloride and formed in a cylindrical shape. The drainage passage forming part 50 is formed so that the check valve 10 can be loosely fitted on the inner peripheral side. More specifically, the inner diameter of the drainage passage forming portion 50 is formed larger than the outer diameter of the main pipe body 11a of the check valve 10, and the inner peripheral surface of the drainage passage forming portion 50 in the state of FIG. The diameters of the main pipe main body 11a, which will be described later, are set so that a gap is generated.

  Further, the drainage passage forming portion 50 is formed so as to be loosely fitted on the inner peripheral side of the inner cylinder portion 301. More specifically, the diameter of the outer periphery of the drainage passage forming portion 50 is formed smaller than the diameter of the inner periphery of the inner cylindrical portion 301. In the state of FIG. 1, the inner peripheral surface of the drainage passage forming portion 50 and the inner cylindrical portion 301 are formed. Each diameter is set so that a gap is formed between the two.

  A position adjusting member 55 is disposed on the outer peripheral surface of the drainage passage forming portion 50. The position adjustment member 55 is in contact with the inner cylinder portion 301 and restricts the drainage member 40 from moving downward.

  The position adjusting member 55 is formed in a cylindrical shape capable of forming a gap with the outer peripheral surface of the drainage passage forming portion 50, and is formed so as to be connected to the upper end portion of the inner cylindrical portion 301 at the lower end portion. Four drain holes 55a that allow the drainage to flow from the surface side to the inner peripheral surface side are formed at equal intervals in the circumferential direction.

  In the present embodiment, the upper end portion side is formed in a cylindrical shape that can be fitted into the outer peripheral surface of the drainage passage forming portion 50, and the lower end portion side is formed in a cylindrical shape that can form a gap with the outer peripheral surface of the drainage passage forming portion 50. Is formed. In addition, the position adjusting member 55 is formed to be slidable with respect to the drainage passage forming portion 50 in a state before being assembled, and the position in the vertical direction is changed according to the height of the upper end portion of the inner cylinder portion 301. It is possible. And in the positioned state, it adheres to the outer peripheral surface of the drainage passage forming portion 50 on the upper end portion side of the position adjusting member 55.

  The inflow portion forming portion 60 is made of vinyl chloride and is formed in a stepped conical cylinder shape. In the present embodiment, the upper tube portion 61 formed in a cylindrical shape, the continuous portion 62 that is formed in a cylindrical shape smaller in diameter than the upper tube portion 61 and can be connected to the inner tube portion 301, and the continuous portion 62 and the upper portion A connecting portion 63 connected to the cylindrical portion 61 and formed in a conical cylindrical shape, and an incrementer (different diameter pipe joint) having the connecting portion 63 are used.

  There is a gap between the outer peripheral surface of the upper end portion of the drainage passage forming portion 50 and the inner peripheral surface of the connecting portion 62. An upper end portion of the drainage passage forming portion 50 is formed integrally with a boundary portion between the connecting portion 62 and the connecting portion 63 via an annular ring member 52.

  The boundary part of the upper cylinder part 61 and the connection part 63 has the level | step difference surface 64 (equivalent to the support surface of the claim of a utility model registration claim) which can arrange | position the strainer 70 mentioned later. The step surface 64 is configured by a surface orthogonal to the axis of the drainage member 40.

  A waterproof tape 65 made of butyl rubber having a rectangular cross section is attached to the upper cylinder portion 61 along the outer peripheral surface.

  In the lower end portion of the continuous portion 62, four drain holes 62a that allow the drainage to flow from the outer peripheral surface side to the inner peripheral surface side are formed at equal intervals in the circumferential direction.

  The connecting portion 62 is configured such that the lower end portion thereof abuts on the inner cylinder portion 301 and the movement of the drainage member 40 to the lower side can be restricted.

  As shown in FIGS. 7A, 7B, 14 and the like, the strainer 70 includes a cylindrical tube portion 71, a plate portion 72 that extends in an annular shape outward from the outer peripheral surface of the tube portion 71, and have. The cylindrical portion 71 is an acrylic inner tube 71a formed in a cylindrical shape, and two cylindrical outer tubes 71b made of vinyl chloride that are bonded to the outside of the inner tube 71a and sandwich the plate portion 72 in the vertical direction. It consists of The plate portion 72 is made of transparent vinyl chloride, and on the concentric circumference of the cylindrical portion 71 of the plate portion 72, nine circulation holes 72a that allow the drainage to flow from the upper surface side to the lower surface side are formed at equal intervals. Yes.

  The strainer 70 is formed in a symmetrical shape with the plate portion 72 interposed therebetween, and can be disposed even when it is upside down when disposed on the step surface 64 of the inflow portion forming portion 60. This eliminates the need to check the orientation of the strainer 70, leading to a reduction in the number of work steps.

  The drainage passage 5 is formed by a drainage passage forming portion 50. The drainage passage forming portion 50 is disposed through the inner cylinder portion 301 and the inner peripheral region of the drainage pipe connection port 4.

  In a portion surrounded by the bottom plate portion 303 of the drainage metal body 30, the drainage member 40, the outer tube portion 302 and the adjustment pipe 9 extending from the outer tube portion 302, a hollow portion 36 whose lower end side is closed is formed. Is formed.

  In the state of FIG. 1, a waterproof tape 65 that is a base of the inflow portion 2 when the inflow portion 2 is formed between the inflow portion formation portion 60 and the adjustment pipe 9 at the end of the hollow portion 36 on the inflow portion 2 side. Will be placed.

  A caulking resin layer 343 filled with an epoxy resin as an auxiliary inflow portion forming portion is formed on the upper side of the waterproof tape 65 to form the inflow portion 2. The inner surface of the inflow portion 2, that is, the surface of the coking resin layer 343 is formed so that the drainage easily flows to the inflow portion forming portion 60 side without unevenness.

  The inflow portion 2 is formed so that drainage can flow from the open upper end edge of the drainage structure 1 toward the drainage passage 5. The inner surface of the inflow portion 2 is formed by the inflow portion forming portion 60 and the caulking resin layer 343, and the surface thereof is smoothly formed.

  An upper end portion of the check valve 10 is disposed at a boundary portion between the drainage passage forming portion 50 and the inflow portion forming portion 60 and is movable upward. In the following description of the check valve 10, the upstream side in the state of being disposed at the end portion on the inflow portion 2 side of the drainage passage forming portion 50 that forms the drainage passage 5 is referred to as the upper side, and the downstream side is referred to as the lower side.

  As shown in FIGS. 2 to 5, the check valve 10 includes a main pipe body (pipe body) 11 having an inclined surface portion 111 on the lower end side, and a flexible valve attached in close contact with the inclined surface portion 111 of the main tube body 11. And a member (hereinafter referred to as “valve part”) 12.

  The main tube 11 has a main tube main body 11a formed of a tube made of vinyl chloride, and an enlarged diameter portion 11b formed with a larger diameter toward the outer side in the radial direction than the main tube main body 11a. .

  On the lower end side of the main tube body 11, an inclined surface portion 111 cut in an oblique direction with respect to the tube axis and an opening surface 114 surrounded by the inclined surface portion 111 are formed. A horizontal surface portion 112 that is orthogonal to the tube axis of the main tube body 11 is formed on the upper end side of the inclined surface portion 111. As shown in FIG. 3, a groove 113 extending from the inclined surface portion 111 is formed above the horizontal plane portion 112 so as to bend toward the lower end side of the main tube body 11. The groove 113 is formed to have a thickness and depth sufficient to insert and fasten one end of a later-described valve portion 12.

  On the upper end side of the main pipe body 11a, two through holes 115 penetrating from the outer peripheral surface toward the inner peripheral surface are formed at equal intervals along the circumferential direction. A cylindrical gripping rod 116 is disposed through the through hole 115. The gripping bar 116 is used to grasp the check valve 10 by hand so that the check valve 10 can be attached to and detached from the drainage member 40.

  As shown in FIGS. 3 and 4, the valve portion 12 is formed of a thin plate-like flexible member and is disposed so that the opening surface 114 can be opened and closed. The valve portion 12 is in close contact with the inclined surface portion 111 of the main tube body 11 to close the opening surface 114, and a folded portion 122 that can be inserted into the groove portion 113 formed in the main tube body 11 at one end of the main body portion 121. Formed from.

  As shown in FIG. 4, the folded portion 122 is formed in a double shape by folding one end of the valve portion 12, and the free end side portion is exposed from the groove portion 113. The valve portion 12 inserted into the groove portion 113 is bent at the boundary portion between the main body portion 121 and the folded portion 122 so that the opening surface 114 can be opened and closed. As shown in FIG. 5, thermal welding is performed to weld a body portion 121 and a folded portion 122 that are folded back and formed in two places near the boundary between the inclined surface portion 111 of the main pipe body 11 a and the horizontal surface portion 112. A portion 123 is formed.

  As shown in FIGS. 1, 14 (a) and 14 (b), the lower surface of the enlarged diameter portion 11 b is formed on an inclined surface and is engaged with a boundary portion between the drainage passage forming portion 50 and the inflow portion forming portion 60. It is formed in a possible shape.

  The check valve 10 inserts the main pipe body 11a into the drainage passage forming portion 50 from above, and drains the bottom surface of the enlarged diameter portion 11b, the end portion on the inflow portion 2 side of the drainage passage forming portion 50, and the drainage of the inflow portion 2. The end portion on the side of the passage forming portion 50 is locked.

  A method for repairing the existing floor drainage hardware 20 to the drainage structure 1 of the present embodiment will be described below.

  As shown in FIG. 8A, the floor drainage hardware 20 is installed on the floor surface T in the facility in a state where the rod 37 is seated on the upper end surface of the inner cylinder portion 301. As shown in FIG. 8 (b), the drain pan 7 and the urn 37 are removed to remove rust and dust from the drain pipe 3 and the drainage hardware body 30, and then the rust and dust are washed with water. When the moisture remains, the caulking agent is not attached, so the drainage hardware main body 30 and the inside of the control pipe 9 are dried with a drying device (not shown) (not shown).

  And as shown in FIG. 9, the drainage channel | path formation part 50 is inserted in the inner peripheral side of the inner cylinder part 301. As shown in FIG.

  At this time, the position adjusting member 55 is pushed in until it comes into contact with the upper end surface of the inner cylinder portion 301. Thereby, the downward movement of the drainage member 40 is restricted. On the other hand, a waterproof tape 65 is disposed between the upper tube portion 61 and the adjustment tube 9 at the upper portion.

  Thereafter, as shown in FIG. 10, the upper peripheral portion of the upper cylindrical portion 61 is connected to the upper edge of the waterproof tape 65 and the inner peripheral edge of the stepped surface 8 a on which the drainage pan 7 of the eye tray receiver 8 is placed (FIG. 1). And the epoxy resin as a filler is filled to form a coking resin layer 343. Here, the caulking resin layer 343 is formed narrowly from the upper end opening edge of the eye plate receiver 8 toward the upper end opening edge of the inflow portion forming portion 60 to form the inflow portion 2. The inner surface of the inflow portion 2, that is, the surface of the coking resin layer 343 is formed on a smooth surface that is free of unevenness and easily drains. In other words, the auxiliary inflow portion forming portion (coking resin layer 343) formed of the filler extends from the upper end opening edge of the inflow portion forming portion 60 to the outside and upward.

  At this time, the bottom plate portion 303 is located between the inner cylinder portion 301 and the drainage member 40 provided continuously from the inner cylinder portion 301 and the outer cylinder portion 302 and the adjustment pipe 9 extending from the outer cylinder portion 302. The hollow part 36 closed by is formed.

  As shown in FIG. 11, the main pipe body 11a is inserted into the drainage passage forming portion 50 from above with the lower surface of the enlarged diameter portion 11b, the drainage passage forming portion 50, the inflow portion forming portion 60 and the boundary portion facing each other. Thus, the check valve 10 is arranged by locking the lower surface of the enlarged diameter portion 11b, the drainage passage forming portion 50, the inflow portion forming portion 60, and the boundary portion.

  As shown in FIG. 12, the strainer 70 is entered from above the inflow portion forming portion 60, and the strainer 70 is disposed by placing the outer peripheral edge portion of the plate portion 72 on the stepped surface 64.

  As shown in FIG. 1, the drainage pan 7 is supported by the pan support 8 and the repair of the existing floor drainage hardware 20 to the drainage structure 1 is completed.

  The functional action of the drainage structure 1 will be described. As shown in FIG. 13, a plurality of drain holes 304 a are formed in the base portion of the collar portion 304. The drainage hole 304 a is formed so that drainage flowing from the waterproof layer 38 (see FIG. 1) flows into the hollow portion 36 of the drainage hardware body 30.

  The drainage stored in the hollow portion 36 is discharged into the gap between the position adjustment member 55 and the inner cylinder portion 301 and the drainage passage forming portion 50 through the drain hole 55 a of the position adjustment member 55.

  As shown by the arrow shown in FIG. 14A, the strainer 70 has a configuration in which air enters from the cylindrical portion 71 and air easily enters the check valve 10 during negative pressure. Further, the upper surface of the plate portion 72 and the outer peripheral surface of the cylinder portion 71 can reduce the entry of dust into the check valve 10 and collect dust, and the drainage passage forming portion 50 and the drainage pipe 3 can be contaminated. In addition, the inflow portion 2 can be cleaned only by replacing and cleaning the strainer 70.

  Further, as shown by an arrow shown in FIG. 14B, at the time of positive pressure, the check valve 10 is lifted upward, and the air flowing along the lower surface of the enlarged diameter portion 11b causes the lower surface of the plate portion 72 and the cylindrical portion 71 to flow. It is possible to reduce the discharge from the inflow portion forming section 60 by circulating and retaining the off-flavor generated in the drain pipe 3 by the outer peripheral surface of the drain pipe 3.

  In the drainage member 40 of the present embodiment, a cylindrical inner cylinder portion 301, an outer cylinder portion 302 formed in a cylindrical shape larger in diameter than the inner cylinder portion 301, an outer cylinder portion 302, and an inner cylinder portion 301 are provided. A drainage passage forming portion 50 that forms a drainage passage 5 that circulates drainage in a tubular shape, and an inflow portion that allows drainage to flow into the drainage passage 5 side. 2 and a check valve 10 that is disposed in the drainage passage forming unit 50 and flows the drainage downstream, and the drainage passage forming unit 50 is a check on the inner peripheral side. The valve 10 is formed so as to be loosely fitted, and is formed so as to be loosely fitted on the inner peripheral side of the inner cylinder portion 301.

  According to this, the drainage passage forming portion 50 can be loosely fitted to the inner peripheral side of the inner cylinder portion 301 of the drainage hardware body 30 to form the drainage passage 5 through which drainage flows, and the inflow portion forming portion 60. Thus, the inflow portion 2 through which drainage can flow into the drainage passage 5 side can be formed. Therefore, it is possible to reduce the cost of the member used for laying by reducing the laying process.

  Further, a position adjusting member 55 is disposed on the outer peripheral surface of the drainage passage forming portion 50, and the position adjusting member 55 is formed in a cylindrical shape capable of forming a gap with the outer peripheral surface of the drainage passage forming portion 50. In addition, a drain hole 55a is formed at the lower end portion so as to be continuous with the upper end portion of the inner cylinder portion 301, and allows drainage to flow from the outer peripheral surface side to the inner peripheral surface side.

  According to this, the drainage stored in the region surrounded by the inner cylinder part 301, the outer cylinder part 302, and the bottom plate part 303 is drained by the drain hole 55 a formed in the position adjustment member 55, so that the inner cylinder part The drainage can be circulated through the gap between the 301 and the drainage passage forming part 50, and the drainage can be discharged to the drainage pipe 3 connected to the inner cylinder part 301.

  Further, on the inner surface of the inflow portion forming portion 60, a strainer 70 having a cylindrical tube portion 71 that collects dust and a plate portion 72 that extends outward from the outer peripheral surface of the tube portion 71 is supported. A step surface 64 is formed as a supporting surface, and a plate portion 72 is disposed on the step surface 64.

  According to this, the strainer 70 has a configuration in which air enters from the cylindrical portion 71 and air easily enters the check valve 10 at the time of positive pressure. Further, the upper surface of the plate portion 72 and the outer peripheral surface of the cylinder portion 71 can reduce the entry of dust into the check valve 10 and collect dust, and the drainage passage forming portion 50 and the drainage pipe 3 can be contaminated. In addition, the inflow portion 2 can be cleaned only by replacing and cleaning the strainer 70.

  Further, the lower surface of the plate portion 72 and the outer peripheral surface of the cylindrical portion 71 can reduce the discharge of the odor generated in the drain pipe 3 during negative pressure from the inflow portion forming portion 60 by circulation and retention.

  The drainage structure of the present invention is not limited to the above configuration. That is, various design changes can be made without departing from the gist of the present invention. Hereinafter, modified embodiments will be exemplified.

  For example, depending on the length of the inner cylinder portion 301 and the adjustment tube 9, the continuous portion 62 can be connected to the upper end portion of the inner cylinder portion 301. In this case, as shown in FIG. 14 (a), the wastewater that flows in from the drain hole 62a flows through the gap between the connecting portion 62 and the inner cylinder portion 301 and the drainage passage forming portion 50 indicated by a broken line. It goes to the drainage pipe 3.

  Even with such a configuration, the drainage stored in the region surrounded by the inner cylinder portion 301, the outer cylinder portion 302, and the bottom plate portion 303 can be drained by the drain hole 62 a formed in the connecting portion 62. The drainage can be circulated through the gap between the cylindrical portion 301 and the drainage passage forming portion 50 and can be discharged to the drain pipe 3 connected to the inner cylindrical portion 301.

  Further, when the drain pipe 3 is updated, a configuration as shown in FIG. 15 including the updated drain pipe 100, the buffer material 101, and the caulking resin material 102 can be provided.

  The renewed drain pipe 100 is made of vinyl chloride, and is formed in a cylindrical shape that can be fitted to the outside of the drain passage forming portion 50 and that can form a gap between the inner peripheral surface of the drain pipe 3. The renewed drainage pipe 100 has a throttle part 100a that is reduced in diameter from the other outer peripheral surface. The restricting portion 100a regulates the fitting depth of the updated drain pipe 100. In the upper part of the renewal drainage pipe 100, four drain holes 100b are formed at equal intervals in the circumferential direction to allow drainage to flow from the outer peripheral surface side to the inner peripheral surface side.

  The buffer material 101 is made of polystyrene, and is arranged in an annular shape between the outer peripheral surface of the renewed drain pipe 100 and the inner peripheral surface of the drain pipe 3 so as to hold down the caulking resin material 102.

  The caulking resin material 102 is made of epoxy resin and is filled in a portion surrounded by the lower end portion of the drainage pipe 3, the outer peripheral surface of the renewal drainage pipe 100, the inner peripheral surface of the drainage pipe 3, and the buffer material 101. .

  The renewed drain pipe 100 is fitted on the outside of the drain passage forming portion 50, and the buffer material 101 is disposed between the outer peripheral surface of the renewed drain pipe 100 and the inner peripheral surface of the drain pipe 3. Then, the caulking resin material 102 is filled in a portion surrounded by the lower end portion of the drain pipe 3, the outer peripheral surface of the renewed drain pipe 100, the inner peripheral surface of the drain pipe 3, and the buffer material 101, and FIG. It becomes the state of.

  With such a configuration, it can be suitably used for repairing drainage equipment disposed between the floor surface T other than the ground floor and the ceiling. In particular, it can be suitable when the drain pipe 3 is updated.

  The renewed drain pipe 100 can be configured to be fitted inside the drain passage forming portion 50.

  Moreover, although the drainage channel | path formation part 50, the inflow part formation part 60, or the cylinder part 71 of the strainer 70 is formed in the cylindrical shape, it can be formed in cylindrical shapes, such as polygonal shape and elliptical shape.

  Further, the plate portion 72 of the strainer 70 can also be formed on a plate having a polygonal shape, an elliptical shape, or the like corresponding to the shape of the inflow portion forming portion 60.

DESCRIPTION OF SYMBOLS 1 Drainage structure 2 Inflow part 3 Drain pipe 5 Drainage path 10 Check valve 30 Drainage metal main body 301 Inner cylinder part 302 Outer cylinder part 303 Bottom plate part 343 Caulking resin layer 40 Drainage member 50 Drainage path formation part 55 Position adjustment member 55a Drainage Hole 60 Inflow portion forming portion 62 Connecting portion 62a Drain hole 64 Step surface 70 Strainer 71 Tube portion 72 Plate portion 72a Flow hole

Claims (8)

A cylindrical inner cylinder part, an outer cylinder part formed in a cylindrical shape larger in diameter than the inner cylinder part, a bottom plate part that connects the outer cylinder part and the inner cylinder part,
It can be placed on the drainage hardware body having
A drainage passage forming portion that forms a drainage passage that circulates drainage in a cylindrical shape, an inflow portion formation portion that forms an inflow portion that allows wastewater to flow into the drainage passage side, and a drainage passage that is disposed in the drainage passage formation portion. A check valve that circulates downstream,
The drainage passage forming part is formed so that the check valve can be loosely fitted on the inner peripheral side, and can be loosely fitted on the inner peripheral side of the inner cylinder part. A position adjusting member is disposed on the outer peripheral surface of the drainage passage forming portion,
The position adjustment member is
It is formed in a cylindrical shape capable of forming a gap with the outer peripheral surface of the drainage passage forming portion, and is formed so as to be connected to the upper end portion of the inner cylindrical portion at the lower end portion. The drainage member according to claim 1, wherein a drainage hole through which drainage can flow is formed on the side. The inflow portion forming portion is formed on the outside of the drainage passage forming portion in a cylindrical shape capable of forming a gap with the drainage passage forming portion, and at the lower end portion with the upper end portion of the inner cylinder portion. A continuous portion that can be continuously provided is disposed,
The drainage member according to claim 1, wherein a drainage hole through which drainage can flow from the outer peripheral surface side to the inner peripheral surface side is formed in the continuous portion. On the inner surface of the inflow portion forming portion, a support surface that supports a strainer having a cylindrical tube portion that collects dust and a plate portion that extends outward from the outer peripheral surface of the tube portion is formed. And
The drainage member according to claim 1, wherein the plate portion is disposed on the support surface. A drainage hardware main body having a cylindrical inner cylinder part, an outer cylinder part formed in a cylindrical shape larger in diameter than the inner cylinder part, and a bottom plate part connecting the outer cylinder part and the inner cylinder part. When,
The drainage member according to any one of claims 2 to 4,
With
A drainage passage connected to a drain pipe is formed by disposing the drainage passage forming portion inside the inner cylinder portion,
From the upper end opening edge of the inflow portion forming portion, an auxiliary inflow portion forming portion formed of a filler extends outward and upward,
A drainage structure in which an inflow portion for allowing drainage to flow into the drainage passage side is formed by the inflow portion formation portion and the auxiliary inflow portion formation portion. When the drainage member according to claim 2 is used,
The drainage structure according to claim 5, wherein the position adjusting member is connected to an upper end portion of the inner cylinder portion at a lower end portion. When the drainage member according to claim 3 is used,
6. The drainage structure according to claim 5, wherein the continuous portion is connected to the upper end portion of the inner cylinder portion at a lower end portion. The drain pipe connection port that extends from the inner cylinder portion and is connected to the drain pipe, the drain pipe connection port and the drain pipe are connected,
An update drain pipe extends from the end of the drainage passage forming portion opposite to the inflow portion forming portion,
The drainage structure according to claim 6 or 7, wherein the renewed drain pipe is loosely fitted on an inner peripheral side of the drain pipe.

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