JP2012127181A - Inner and drain trap equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain trap, the overall height of which can be easily adjusted in accordance with a construction site.SOLUTION: A drain trap includes a tubular drain trap body 10 that comprises first and second trap members 11 and 12, and a tubular inner 20 that is detachably attached from a trap body opening 12c. The inner 20 is held by a lock flange 50 that is screwed and attached to the second trap member 12. The first and second trap members 11 and 12 are screwed to each other, and the lock flange 50 can be screwed to the first trap member 12. Thus, the axial height of the drain trap body 10 is widely adjusted in accordance with a construction site for attaching the inner.

Description

  The present invention relates to a drain trap used for a bathtub, a bathroom, a washing machine pan, a wash basin, a sink, and the like, and in particular, installed near a drain outlet of a bathroom or a wash basin or under a floor and connected to a drain pipe, and so on. The present invention relates to a drain trap used to take in hot water discharged from the inside and guide it to a connected drain pipe.

  The drain trap is provided in the middle of the drain pipe of a drainage facility such as a bathroom or a sink, and has a sealing part that always blocks the middle of the drainage path with water, and the air from there is blocked by closing the path with water. Shut off gas such as hydrogen sulfide. It also has the purpose of preventing bad odors, toxic gases, pests, etc. in the drain pipe from flowing back into the room through the drain pipe, which is indispensable in drainage facilities.

  A variety of product drainage traps with different axial heights are lined up according to the construction location where the drainage trap is installed, and the drainage trap is appropriately selected according to the construction location. As a drain trap structure, for example, a structure is known in which a sub pipe is screwed into a trap body in which an inner forming a sealed water space is mounted, and a strainer is fitted to a strainer support ring on the upper side of the sub pipe. . In this case, the strainer support ring is screwed to the outside of the secondary pipe, and the height of the secondary pipe is adjusted during construction (see Patent Document 1). Furthermore, a drain trap is known that cuts an extension pipe so that it can accommodate both the bathtub drain trap and the installation height of the washroom drain trap (see Patent Documents 2 and 3).

  In addition, a structure is also known in which an inner cylinder and an outer cylinder constituting an inner are screwed together, and are integrally attached to a water pipe and can be taken out (see Patent Document 4). On the other hand, there is also known a drainage trap in which a water leakage preventing plate is attached to the outer peripheral surface of the trap body (see Patent Document 5).

Japanese Utility Model Publication No. 60-169373 Japanese Patent Laid-Open No. 08-246529 Japanese Patent Laid-Open No. 08-246528 Japanese Patent Laid-Open No. 06-306908 Japanese Patent Laid-Open No. 08-074306

  For example, in the case of buried under the floor, if the installation depth is limited, even a trap with a small size may not be buried as it is. For example, when installing a drain trap on the high floor of an apartment, there is a limit to the construction depth under the floor. Moreover, if the installation depth of the underfloor drain pipe cannot be sufficiently secured, it is difficult to accurately match the connection with the trap position when connecting to the pipe.

  Therefore, it is necessary to have a drain trap structure suitable for various construction sites.

  The drain trap of the present invention has a first trap member in which an outflow port is formed and a second trap member in which an inflow port is formed, and the first trap member and the second trap member are screwed together. A cylindrical trap body, a cylindrical inner that forms a sealed water space, an inner support member that is threadedly engaged with the second trap member on the inlet side, and supports the inner, The first trap member can be attached to the threaded portion of the first trap member with the second trap member by screwing, and the inner is detachably attached to the inner support member. For example, the first trap member has a female screw portion formed on the inner periphery of the upper opening portion and a drain pipe connection portion formed on the lower portion, and the second trap member has a lower opening portion. A male threaded portion that is threadedly engaged with a female threaded portion formed on the top of the first trap member, and a female threaded portion that is formed on the upper opening. The height of the trap body can be adjusted by screwing the two trap members together. The inner has, for example, a bottomless cylindrical inner cylinder and a bottomed cylindrical outer cylinder, and the inner cylinder can be removed from the inner support member as a single unit. Can be attached to. The drain trap body of such a drain trap can have similar characteristics.

  By finely adjusting the degree to which the first trap member and the second trap member are loosened or tightened, the trap body expands and contracts in the axial direction, and the axial length of the trap body is arbitrarily adjusted. The axial height of the entire trap can be adjusted. On the other hand, the inner support member can be screwed with the first trap member on the lower side, that is, it can be screwed into a screwed portion formed in the middle of the trap body, so that the upper side can be The drain trap is configured with the second trap member removed, and the height of the drain trap can be reduced while the height setting range is expanded by finely adjusting the degree to which the inner support member is loosened or tightened. Can be adjusted.

  For example, a water leakage prevention member that has a flange portion and can be attached by screwing to each of the first trap member and the second trap member is provided between the first trap member and the second trap member. It is possible. By screwing the water leakage preventing member, it is possible to reliably prevent rain leakage from the screwed portion, while adjusting the degree of screwing to further adjust the overall height of the drain trap. For example, the water leakage preventing member has a cylindrical connecting portion, and the connecting portion is provided at a lower portion of the flange portion, and a first connecting portion in which a male screw portion is formed on the outer periphery of the opening portion, and the flange portion And a second connection portion having a female screw portion formed on the inner periphery of the opening.

  The drain trap according to another aspect of the present invention includes a first trap member in which an outlet is formed and a second trap member in which an inflow port is formed, and the first trap member and the second trap member. Between the first trap member and the second trap member, the cylindrical trap body that is threadably engaged with each other, the cylindrical inner that is detachably mounted from the inlet and forms a sealed water space, And an intermediate member that can be attached to each of the first trap member and the second trap member by screwing. Since it is screwed into both the first and second trap members, the degree of loosening and tightening are set separately for the first and second trap members, so that the axial height of the drain trap can be set in a wider range. Fine adjustments can be made inside. As the intermediate member, for example, a water leakage preventing member can be applied.

  An inner drain trap according to another aspect of the present invention is a cylindrical inner that is detachably attached to a trap body in which an inlet and an outlet are formed. A cylinder and a bottomed cylindrical outer cylinder, and the inner cylinder has a connecting part in which an engaging projection protrudes, a collar part in which an opening part for draining water is formed, and an upper end that is open The outer cylinder is provided with a bottomed cylindrical sealing part with an opening formed in the upper part, and an engagement hole with which an engagement protrusion can be engaged. And the inner is detachably attached to the inside of the trap body in a state where the engagement protrusion is engaged with the engagement hole. By cutting the outer cylinder, it is possible to adjust the inner axial height according to the height of the trap body. Even when the trap body height becomes very short, the axial length of the outer cylinder The length can be shortened, and a suitable sealed water space can be formed. For example, the inner may be provided with perforated grooves or slits along the circumferential direction of the outer peripheral surface of the inner cylinder and the outer peripheral surface of the outer cylinder.

  Furthermore, the drain trap inner in another aspect of the present invention is a cylindrical inner that is detachably attached to the trap body in which the inlet and the outlet are formed. A bottomless cylindrical inner cylinder having a flange part formed with an opening for forming a cylinder, a cylindrical body having an upper end formed integrally with the opening part, and a bottomed cylindrical seal with an opening formed on the upper part. It has a water part and is equipped with a bottomed cylindrical outer cylinder that is supported by the inner cylinder by fitting it into the inner cylinder, and the inner is removed from the trap body by integrating the inner cylinder and the outer cylinder. The outer cylinder can be mounted so that the height in the axial direction can be adjusted by cutting. By attaching the outer cylinder and the inner cylinder so that they can be fitted, not by screwing, etc., the inner can be configured to be freely integrated, and the axial length of the outer cylinder can be freely cut. Easy to adjust.

  On the other hand, the drain trap inner in another aspect of the present invention is a cylindrical inner that is detachably mounted from the inlet to the trap body in which the inlet and the outlet are formed. An inner cylinder having a gripping part at the inlet side opening, a bottomed cylindrical outer cylinder, and an inner cylinder, and connecting the bottom part of the outer cylinder and the gripping part A connecting member, the connecting member is detachably connected to at least one of the outer cylinder and the inner cylinder, and the inner is removable from the trap body by integrating the inner cylinder and the outer cylinder. Installed. Since the inner cylinder supports and holds the outer cylinder by connecting the bottom part and the gripping part, it is not necessary to provide a connection structure that becomes an obstacle when the inner is installed. For example, the connecting member can connect the central portion of the gripping portion of the inner cylinder and the central portion of the bottom portion of the outer cylinder.

  The inner drain trap according to the present invention described above can be mounted on the drain trap provided with the height adjusting mechanism described above, and can also be applied to a trap body having no height adjusting mechanism. That is, in a situation where a drainage trap having a height suitable for the construction site is installed, it is possible to mount the drainage trap inner so that a sealed space can be formed in accordance with the height in the axial direction.

  A drain trap according to another aspect of the present invention includes a cylindrical trap body having an inlet at an upper portion and an outlet at a lower portion, a bottomed cylindrical outer cylinder, and a bottomless cylindrical inner cylinder. A trapezoidal inner that forms a sealed water space, and an inner support member that is mounted on the inflow side of the trap body and supports the inner by integrating the outer cylinder and the inner cylinder. It has a height adjustment mechanism that can adjust the height in the trap axial direction by changing the axial length of the main body by expansion and contraction, and the inner support member is located at a position closer to the inlet than the height adjustment mechanism in the trap main body. It is attached to the inner peripheral surface of the trap body.

  ADVANTAGE OF THE INVENTION According to this invention, the drain trap which can adjust the height of the whole drain trap easily according to a construction place can be provided.

It is a disassembled perspective view which shows the drainage unit with a trap which adapted the drainage trap which concerns on embodiment of this invention. It is a front view which shows the state which cut | disconnected and shortened the inner side of the drain trap. It is a front view which shows the inner side of a drain trap. It is a front view of a drain trap body. It is a front view which shows the state which extended the drain trap main body long. It is sectional drawing which shows the structure of the state which accommodated the inner state cut | disconnected and shortened in the drain trap main body of the shortened state. It is sectional drawing which shows the state which accommodated the inner in the drain trap main body of the state extended long. It is a disassembled perspective view which shows the example which clamps a waterproofing tray between drainage trap main bodies. It is a perspective view which shows another example of the upper cover used for the drainage unit which concerns on embodiment of this invention. It is a schematic sectional drawing of the inner in 3rd Embodiment.

  A drain trap according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a trapping drainage unit to which a drainage trap according to a first embodiment of the present invention is applied. Fig. 2a shows a state where the inner side of the drain trap is cut and shortened, and Fig. 2b shows an inner side of the drain trap, which is not cut. FIG. 3a shows a drain trap body, and FIG. 3b shows a state in which the drain trap body is elongated. FIG. 4a shows a configuration in which the drain trap body in a shortened state accommodates the inner part in a cut and shortened state, and FIG. 4b shows a state in which the inner is accommodated in a drain trap body in an elongated state. In the first embodiment, an example in which the trapped drainage unit shown in FIG. 1 is installed in a bathroom is shown, but it can be applied not only to a bathroom but also to a toilet, kitchen, or other water-related equipment.

  As shown in FIG. 1, the drainage unit with a trap includes a drainage trap body (trap body) 10, an inner 20 that is mounted inside the drainage trap body 10, and a drainage unit 30.

  The drain trap body 10 is formed in a cylindrical shape and includes a first trap member 11 and a second trap member 12. The upper part of the first trap member 11 is opened to form an opening 11a. A female screw part 11b is formed by engraving a screw on the inner periphery of the opening part 11a. An outflow port 11d through which drainage flows out is formed at the center of the bottom 11c of the first trap member 11 (see FIG. 4). A drain pipe connecting portion 13 connected to an external drain pipe (not shown) is formed on the bottom 11 c of the first trap member 11. The drain pipe connecting portion 13 is formed in a cylindrical shape and protrudes downwardly to which the drain pipe is connected. As shown in FIGS. 3 and 4, the drain pipe connecting portion 13 includes a drain pipe connecting cylinder 13 a and a drain cylinder 13 b. The drain pipe connecting cylinder 13 a is continuously formed on the lower surface of the bottom portion 11 c of the first trap member 11. The drain cylinder 13b is formed continuously from the outlet 11d of the bottom portion 11c of the first trap member 11, and allows drainage to flow out to the drain pipe. Both the drain pipe connecting cylinder 13a and the drain cylinder 13b have lower ends 13c and 13d opened.

  The second trap member 12 is formed by screwing a male screw portion 12b that engages with a female screw portion 11b formed at the upper portion of the first trap member 11 on the outer periphery of the lower opening portion 12a. . Further, the upper part is opened to form a trap body opening 12c, and a female screw part 12d is formed on the inner periphery of the trap body opening 12c.

  A height adjusting mechanism capable of adjusting the height in the axial direction of the drain trap body 10 by screwing the female screw portion 11b of the first trap member 11 and the male screw portion 12b of the second trap member 12 together. Is realized. As shown in FIG. 4, the height adjusting mechanism is formed at a substantially central portion of the drain trap body 10. Here, the drain trap body 10 is made of plastic and has a vertical pulling type. The height direction of the drain trap body 10 means the height direction of the floor surface for installing the drain trap body 10, that is, the trap axis direction. FIG. 3a shows the drain trap body 10 in a threaded state until the drain trap body 10 is shortest. FIG. 3b shows the drain trap body 10 with the screw loosened, and the axial length of the trap body 10 is increased compared to FIG. 3a. In this way, the trap body 10 expands and contracts depending on the degree of screwing, and the axial height of the entire drain trap is adjusted.

  As shown in FIGS. 1 and 2, the inner 20 is detachably mounted inside the drain trap body 10 and is constituted by an inner cylinder 21 and an outer cylinder 26 to form a sealed space.

  The inner cylinder 21 includes a flange part 22 having an opening 22a for allowing drainage to flow into an upper part thereof, and a cylinder 23 for water conveyance formed integrally with the opening 22a. On the upper surface of the flange portion 22, a grip portion 22b is provided so as to cross the opening portion 22a. A ring-shaped inner packing 24 made of rubber is attached to the outer periphery of the flange portion 22 over the entire periphery. On the lower surface of the flange portion 22, an engagement protrusion 25 a for engaging the flange portion 22 for integrally removing the inner 20 from the inside of the drain trap body 10 and the cylindrical body 23 with the outer cylinder 26, and a drain trap A connecting portion 25 provided with a hook portion 25b used for attaching the inner 20 to the main body 10 is connected. The cylindrical body 23 has an open lower end 23a, and a perforated groove 23b is shallowly carved from the beginning on the outer peripheral surface as shown in FIG. The cylindrical body 23 can be cut along the perforations of the perforated groove 23b, and the length of the cylindrical body 23 can be adjusted by cutting. In addition, the inner diameter of the inner packing 24 is set so that the outer shape of the drain trap body to be inserted and connected is sealed in a watertight manner.

  The outer cylinder 26 can store drainage, and has a bottomed cylindrical sealing part 27 with an opening 27a formed at the upper end, and an attachment part 28 provided with an engagement hole 28a with which the engagement protrusion 25a can be engaged. It consists of. A perforated groove 27b is shallowly carved over the entire circumference of the outer peripheral surface of the outer cylinder 26. Further, in the lower part of the engagement hole 28a, grooves 28b and 28c having the same size as the engagement hole 28a are shallowly cut like the perforated groove 27b. The inner 20 is detachably attached to the inside of the drain trap body 10 by gripping the grip portion 22b of the inner cylinder 21 with the engagement protrusion 25a engaged with the engagement hole 28a. By cutting along the perforations of the perforated grooves 27b formed in the sealed portion 27 of the outer cylinder 26, the axial length of the sealed portion 27 of the outer cylinder 26 can be adjusted. Further, by drilling any one of the groove portions 28b and 28c in accordance with the cutting of the sealing portion 27, the engagement hole for engaging the engagement protrusion 25a is changed to the groove portion 28b formed from the engagement hole 28a. It can be shifted to any position of 28c.

  The inner 20 shown in FIG. 2a is cut and shortened by the perforated grooves 23b and 27b of the inner cylinder 21 and the outer cylinder 26, and the groove 28c is combined as an engagement hole with which the engagement protrusion 25a can be engaged. It is. Compared with the inner 20 combined without cutting shown in FIG. 2b, it is shorter in the height direction and the sealing portion 27 is also smaller. As described above, the inner cylinder 21 and the outer cylinder 26 are appropriately cut and combined along the perforated grooves 23b and 27b, respectively, to adjust the height of the entire inner 20 and the size (volume) of the sealing portion 27. Is adjusted.

  As shown in FIG. 1, the drainage unit 30 includes a stainless steel drainage unit main body 31 serving as a receiving frame, and a stainless steel upper lid 32 that is used by being fitted into the upper surface opening 31 a of the drainage unit main body 31. The drainage unit main body 31 collects drainage and guides it to the drainage port 31c formed on the bottom surface 31b, so that the bottom surface 31b forms an inclined surface toward the drainage port 31c. The upper lid 32 has a plurality of openings 33 through which drainage flows. The upper lid 32 is divided into two above the drain port 31c. On one side surface 32c of the upper lid 32a fitted above the drain port 31c and a right side surface of the upper lid 32b (not shown), a hooking portion 34 for hooking a finger when removing the upper lids 32a and 32b is formed.

  When the drain trap body 10 is attached to the drain unit 30, a rubber-made ring-shaped lock flange packing 40 is attached to the trap body opening 12 c of the second trap member 12. After mounting the lock flange packing 40, the trap body opening 12c is placed on the top surface so that the periphery of the drain port 31c formed on the bottom surface 31b of the drain unit main body 31 comes, and the lock flange 50 is screwed onto it. To do. In this manner, the periphery of the drain port 31 c of the drain unit main body 31 is sandwiched and fixed between the drain trap body 10 and the lock flange 50 via the lock flange packing 40.

  The lock flange 50 is a member that has a strainer (not shown) receiving frame and supports the inner 20, and includes a metal flange portion 51 and a plastic connection portion 52 provided at a lower portion of the flange portion 51. Continuously and integrally formed. The connection portion 52 has a male screw portion 54 that is screwed into the female screw portion 12 d formed on the inner peripheral surface of the trap main body opening 12 c of the first trap member 11 of the trap main body 10 in the outer peripheral portion 53. Further, in order to engage and lock with the inner 20, projections 55 are formed along the circumferential direction of the inner circumferential surface, and the recesses 56 are equally spaced along the circumferential direction (here, 90 °). Formed. The concave portion 56 is for the connecting portion 25 of the inner 20 to pass when the inner 20 is mounted on the first trap member 11. Furthermore, the lock flange 50 can screw the male screw portion 54 formed on the outer peripheral surface of the connecting portion 52 with the female screw portion 11b of the first trap member 11, and the first trap member 11 on the lower side. It is also possible to construct a drain trap only by this.

  When constructing a drainage unit with a trap at a construction site, first, a position where the drainage unit with a trap is arranged is determined, and the height of the drainage trap body 10 as a whole is determined according to the thickness of the floor at the location. The height is adjusted by adjusting the length at which the female screw portion 11b of the first trap member 11 and the male screw portion 12b of the second trap member 12 are screwed together. That is, the height of the drain trap body 10 as a whole is increased by rotating the male threaded portion 12b of the second trap member 12 inserted into the first trap member 11 to tighten or loosen the second trap member 12. adjust. For height adjustment, either the first trap member 11 or the second trap member 12 may be rotated, and the lower first trap member 11 may be rotated. The length of the trap body in the axial direction can be arbitrarily adjusted within a wide range by separately adjusting the degree of screw loosening and the degree of tightening. On the other hand, when the axial length of the first and second trap members 11 and 12 is the shortest, but does not correspond to the installation location depth, the lock flange 50 is directly connected to the first trap member 11. Since it is screwed, it is possible to install only the first trap member 11 without using the upper second trap member 12. Even in this case, the length of the trap body in the axial direction can be finely adjusted by adjusting the degree to which the screw of the lock flange 50 is loosened or tightened.

  A drain pipe is arranged in accordance with the position where the drain trap body 10 whose height has been adjusted is arranged. A sealing material is sandwiched between the threaded portions of the drain pipe connection portion and connected to the drain pipe connection portion 13 of the drain trap body 10 to fix the drain trap body 10.

  And mortar / concrete construction is carried out to the height of the peripheral edge of the drain trap body 10. A ring-shaped lock flange packing 40 made of rubber is attached to the upper end of the trap body opening 12c, and is placed so that the peripheral edge of the drainage port 31c of the drainage unit body 31 overlaps thereon. The lock flange 50 is screwed onto the drainage port 31c of the drainage unit main body 31, and the lock flange 50 is attached to the drainage trap main body 10 so as to sandwich the bottom surface 31b of the drainage unit main body 31 and the lock flange packing 40.

  For example, as shown in FIG. 3a, when the drain trap body 10 is short, as shown in FIG. 2a, the inner 20 is also prepared by cutting along the perforated grooves 23b and 27b and shortening it. . As shown in FIG. 3b, when the drain trap body 10 is long, the inner 20 is used as it is without being cut as shown in FIG. 3a. Further, according to the height of the drain trap body 10, the inner 20 is cut and combined to adjust the height.

  In this way, the inner packing 24 is mounted on the outer periphery of the flange portion 22 of the inner 20 that has been appropriately adjusted in height, the engagement protrusion 25a of the inner cylinder 21 is engaged with the engagement hole 28a of the outer cylinder 26, and the inner cylinder The inner 20 is inserted into the lock flange 50 attached to the drain trap body 10 with the 21 and the outer cylinder 26 fitted together. When the inner 20 is inserted into the drain trap body 10, the gripping portion 22 b is held by hand, and the orientation is adjusted so that the hook portion 25 b of the inner 20 passes through the recess 56 of the lock flange 50. The lower surface 22 d of the flange portion 22 of the inner 20 is in contact with the upper surface 55 a of the projection 55 of the connection portion 52 of the lock flange 50, and is consequently fixed to the drain trap body 10 by being held by the lock flange 50. (See FIG. 4).

  After the inner 20 is inserted and attached to the drain trap body 10, the upper lid 32 is fitted from above the drain unit body 31 into the upper surface opening 31 a of the drain unit body 31.

  Adjust the horizontal level of the upper surface of the drainage unit main body 31 to the planned floor surface, fix it by concrete or mortar construction, and install the tile on the mortar upper surface so that the upper surface level matches the upper surface level of the drainage unit main body 31 Complete.

  In the drainage unit with a trap installed in this way, the drainage collected in the drainage unit main body 31 through the plurality of openings 33 of the upper lid 32 from the floor surface of the bathroom is opened in the inner cylinder 21 of the inner 20 through the drainage port 31c. Water is guided from the portion 22 a to the sealed portion 27 of the inner 20 and stored in the sealed portion 27. Waste water exceeding the capacity of the sealed water portion 27 overflows from the sealed water portion 27 into the drain trap body 10 through the opening 27 a at the upper end of the outer cylinder 26 of the inner 20. Then, it passes through the drain tube 13b from the outlet 11d of the drain trap body 10, and is discharged from the lower end 13d of the drain tube 13b through the external drain pipe.

  As described above, in the drain trap according to the first embodiment of the present invention, since the drain trap body includes the height adjustment mechanism, the drain trap body is adjusted to the construction place of the drain trap without changing the size of the inner sealed space. The height is easily adjusted. Moreover, by detachably attaching the inner to the inner peripheral surface of the drain trap body, the height can be adjusted regardless of the structure related to the trap function, and the trap mounting operation is facilitated. In addition, by fitting the outer cylinder to the inner inner cylinder and integrating them, a sealed water space for sealing or deodorizing is formed, and the inner can be easily detached from the trap body and screwed. The trap body is securely fixed in the height direction by the engagement.

  Further, the first trap member and the second trap member are screwed together so that the height can be easily adjusted according to the construction place where the drain trap is attached, and the bottom side first trap member By forming the trap body only by screwing with the lock flange, a drain trap having a shorter axial height can be formed. As a result, the range from the very shallow location to the very deep location of the drain trap is set as the axial height adjustment range, and the length of the parts that are screwed to each other is adjusted, so that the subtle height You can make adjustments. Also, by combining the inner and outer cylinders cut along the perforated groove, the height of the entire inner and the size of the sealed part are adjusted to match the determined overall height of the drain trap. Even when there is no depth, the inner axial height can be adjusted by cutting the outer cylinder.

  Furthermore, since the drain trap body can be adjusted in height in the axial direction with the inner attached to the opening of the trap body, the height of the drain trap can be adjusted with the inner installed, so that the drain trap can be attached. Becomes easier. In addition, the inner cylinder is supported by the inner cylinder, and the inner cylinder is detachably mounted on the opening side of the trap body, so that it is easy to adjust the height when the inner is installed. .

  The perforated groove may be a slit through which the perforation passes. In this case, cutting becomes easy. Further, the number of lines along the axial direction of the perforation and the number of holes for connection are arbitrary, and a larger number of perforations may be engraved. In addition, the inner cylinder is not only attached to the drain trap body with the inner cylinder and outer cylinder integrated, but also the drain trap body by attaching the outer cylinder to the drain trap body and then attaching the inner cylinder to the outer cylinder. The inner cylinder and the outer cylinder may be integrated. Further, apart from the connecting portion provided for mounting the inner lock flange, a protruding portion provided with an engaging protrusion may be provided on the peripheral edge of the inner cylinder. Furthermore, it is also possible to provide an engagement hole in the inner cylinder and a protrusion in the outer cylinder and engage with each other. More generally, the outer cylinder and the inner cylinder can be configured integrally while widening the cutting allowable range of the outer cylinder by a configuration in which the outer cylinder is fitted and attached to the inner cylinder. The gripping portion of the lock flange may be configured to be provided on the bottom side. Moreover, the flange shape, size, etc. of the water leakage preventing member can be arbitrarily set. About a 1st trap member, the structure of a piping connection part is arbitrary, and you may comprise so that an outflow port may become a top main body bottom part as it is, without providing a piping connection part.

  Next, a drain trap according to a second embodiment of the present invention will be described with reference to FIG. FIG. 5 is an exploded perspective view showing an example in which a waterproof tray (water leakage prevention member) for preventing water leakage is sandwiched between the first trap member and the second trap member of the drain trap body.

  The waterproof pan 60 includes a disc-shaped flange portion 61 having an opening 61a formed in the central portion for preventing water leakage, and cylindrical first and second connecting portions 62 for connection to the drain trap body 10. 63. The first connection portion 62 is formed continuously so as to protrude downward continuously from the opening 61a of the flange portion 61, and is formed by a male screw portion 62b being engraved on the outer periphery of the lower opening portion 62a. Is done. The second connecting portion 63 is formed so as to continuously protrude upwardly from the opening 61a of the flange portion 61, and is formed by screwing a female screw portion 63b on the inner periphery of the upper opening portion 63a. Is done. Four slits (not shown) are formed at equal intervals in the second connection portion 63 so that drainage that flows along the flange portion 61 flows toward the inner opening 61a.

  The first connection part 62 of the waterproof tray 60 is connected to the first trap member 11 by screwing the male screw part 62 b and the female screw part 11 b of the first trap member 11. The second connecting portion 63 of the waterproof tray 60 is connected to the second trap member 12 by screwing the female screw portion 63b and the male screw portion 12b of the second trap member 12. Thus, the waterproof tray 60 is clamped between the first trap member 11 and the second trap member 12 by screwing.

  In the drain trap according to the second embodiment of the present invention, since the waterproof tray 60 for preventing water leakage is provided between the first trap member 11 and the second trap member 12 of the drain trap body 10, the waterproof trap is provided. It can be done reliably. Further, since the waterproof tray 60 is connected between the first trap member 11 and the second trap member 12 by screwing, it can be easily connected to the drain trap body 10, and the waterproof tray 60 is adapted to the site. By rotating, the length in the height direction can be adjusted as appropriate.

  Although the waterproof tray 60 is provided between the first trap member 11 and the second trap member 12 in the second embodiment, it may be attached to the upper portion of the second trap member 12 depending on the situation of the installation site. Absent. In this case, the male screw portion 62b of the first connecting portion 62 of the waterproof tray 60 is screwed and fixed to the female screw portion 12d of the second trap member 12. Then, the lock flange packing 40 is attached to the upper end 63c of the second connecting portion 63 of the waterproof tray 60, and placed so that the peripheral edge of the drainage port 31c formed on the bottom surface 31b of the drainage unit 30 overlaps the upper end 63c. To do. The lock flange 50 is attached by screwing from above. Next, the inner 20 adjusted in height is inserted into the drain trap body 10, and the upper lid 32 is attached from above the drain unit body 31.

  Next, a modification of the upper lid of the drainage unit to which the drainage trap according to the embodiment of the present invention is applied will be shown. As shown in FIG. 6, in this example, a plurality of convex portions 72 are provided on the surface of a long main material 71 constituting the upper lid 70 so that the convex portions 72 are staggered over the entire surface 70a of the upper lid 70. Is to be arranged. In this example, the plurality of long main members 71 constitute the upper lid 70 by connecting the lower portions with connecting members 73. The upper lid 70 is used by being fitted into the upper surface opening 31a of the drainage unit main body 31 serving as a receiving frame. In this example, since the plurality of convex portions 72 are formed on the surface 70a of the upper lid 70, it is possible to prevent a person from slipping and falling when walking on the surface.

  The upper lid 70 may be divided at the upper part of the drainage port 31c of the drainage unit 30 as in the first embodiment. Further, the material of the upper lid 70 may be other alloy such as aluminum or brass other than stainless steel, or may be made of synthetic resin or rubber.

  Moreover, the shape of the convex part 72 may be a complicated shape other than a circular shape and a polygonal shape. In addition to being smooth, the surface of the convex portion 72 may have a weight shape or a shape in which the central portion is recessed. Further, the surface of the main material 71 may be knurled to have a knurled shape. In the first and second embodiments, the drain trap body 10 is vertically pulled, but a horizontally drained trap may be used according to the arrangement of drain pipes to be connected.

  Note that the height of the trap body in the axial direction can be reduced by simply providing an intermediate member that does not have a flange mechanism as in the case of the waterproof tray and is screwed into both the first trap member and the second trap member. Can be fine-tuned.

  Next, the drain trap which is 3rd Embodiment is demonstrated using FIG. In the third embodiment, the inner outer cylinder and the inner cylinder are connected by screws.

  FIG. 7 is a schematic cross-sectional view of the inner in the third embodiment.

  The inner 200 includes an inner cylinder 223 and an outer cylinder 226. The holding portion 222d of the inner cylinder 223 is formed with a connecting portion 222b extending toward the outer cylinder at the center thereof. The rod-shaped connecting member 250 is a member made of metal or plastic that connects the inner cylinder 223 and the outer cylinder 226, and is a screw member in which a male screw is formed on the outer peripheral surface. In the connecting member 250, one end portion 250B is connected to the bottom center portion of the outer cylinder 226, and the other end portion 250A is connected to the connecting portion 222b.

  The end portion 250B of the connecting member 250 is bonded and fixed to the bottom portion of the outer cylinder 226, for example. On the other hand, for example, an internal thread is formed in the cylindrical connecting portion 222b of the gripping portion 222d. Then, the connecting member 250 is screwed into the connecting portion 222b and connected to the inner cylinder 223.

  By adjusting the screwing length between the connecting member 250 and the connecting portion 222b of the inner cylinder 223, the axial length of the inner 200 can be adjusted. Therefore, the axial height of the inner 200 can be adjusted in accordance with the axial height adjustment of the drain trap body, and a sealed water space with an appropriate capacity that matches the trap body size can be formed. In particular, a screw-like connecting member is disposed near the inner central axis, and the inner gripping part and the outer cylinder bottom central part are connected to stably connect the outer cylinder and the inner cylinder integrally in the axial direction. In addition, when the inner is attached to the lock flange, the outer cylinder and the inner cylinder are not connected in the vicinity of the outer peripheral surface.

  About a connection member, you may join with a volt | bolt and a nut with respect to an outer cylinder bottom part or a holding part. It is also possible to partially cut the connecting member when adjusting the height. Moreover, you may comprise the connection member which enables inner height adjustment by structures other than screwing. For example, a configuration may be adopted in which a hole is formed in the gripping portion and an end portion of the connecting member is passed through the hole to engage the connecting member with the gripping portion. The connecting member is configured to be connected to the bottom of the outer cylinder with a bolt and a nut, and further, an elongated protrusion extending along the vertical direction of the member is formed at the end of the connecting member, and the protrusion is formed on the gripping part. By forming an elongated hole to be penetrated, penetrating the end of the coupling member through the hole and projecting from the gripping part, and then twisting the coupling member, the coupling member is locked and held with the gripping part. It may be configured. In this case, the connecting member can be rotated and adjusted so as to be reliably caught by the grip portion. On the other hand, you may join a holding part and a connection member with a volt | bolt and a nut. Furthermore, you may make it join a connection member except the holding part center of an inner cylinder, and the center other than the bottom part of an outer cylinder.

  As in the first embodiment, it is possible to cut the outer cylinder by forming a perforation, and considering that the inner height can be adjusted, the connecting member is The outer cylinder may be detachably connected, or the outer cylinder and the inner cylinder may be detachably connected.

  In the first to third embodiments, a drain trap is formed by combining an inner height and a trap body that can be adjusted in height in the axial direction. However, each embodiment is shown for a trap body without a height adjustment mechanism. The inner can be attached, and the trap body shown in each embodiment can be attached to the inner that is not supposed to cut the outer cylinder.

10 Drain trap body (trap body)
11 1st trap member 11a opening part 11b female screw part 11c bottom part 11d outflow port 12 2nd trap member 12a opening part 12b male screw part 12c trap body opening part (opening part)
12d Female thread part 13 Drain pipe connection part 20 Inner 21 Inner cylinder 22 Gutter part 22a Opening part 23 Cylindrical body 23b Perforated groove part 24 Inner packing 25 Connection part 25a Engagement protrusion 26 Outer cylinder 27 Sealing part 27a Opening 27b Sewing machine Eye-shaped groove portion 28 Mounting portion 28a Engagement hole 28b, 28c Groove portion 30 Drainage unit 31 Drainage unit body 32 Upper lid 33 Opening 40 Lock flange packing 50 Lock flange (inner support member)
51 Flange 60 Waterproof tray (water leakage prevention member)
62 1st connection part 63 2nd connection part 70 Upper cover 222d Grip part 250 Connecting member

Claims (13)

A first trap member in which an outflow port is formed and a second trap member in which an inflow port is formed; and a cylindrical shape in which the first trap member and the second trap member are screwed together The trap body,
A cylindrical inner that forms a sealed water space;
An inner support member that is screwed into the second trap member on the inlet side and supports the inner;
The inner support member can be attached by screwing to a screwed portion of the first trap member with the second trap member,
The drain trap, wherein the inner is detachably attached to the inner support member.   A water leakage preventing member that has a flange portion and can be attached to each of the first trap member and the second trap member by screwing between the first trap member and the second trap member. The drainage trap according to claim 1, further comprising: The water leakage prevention member has a cylindrical connection part,
The connection portion is provided at a lower portion of the flange portion, and is provided with a first connection portion having a male screw portion formed on an outer periphery of the opening portion and an upper portion of the flange portion, and a female screw on an inner periphery of the opening portion. The drainage trap according to claim 2, further comprising a second connection portion formed with a portion. The first trap member has a female screw portion formed on the inner periphery of the upper opening, and the drain pipe connecting portion formed on the lower portion.
The second trap member includes a male screw portion that is screwed to an outer peripheral portion of the lower opening portion and a female screw portion that is formed on the upper portion of the first trap member, and a female screw that is formed on the upper opening portion. And
The drain trap according to any one of claims 1 to 3, wherein the height of the trap body can be adjusted by screwing the first trap member and the second trap member together. The inner has a bottomless cylindrical inner cylinder and a bottomed cylindrical outer cylinder,
The drain trap according to any one of claims 1 to 4, wherein the inner is detachably attached to the inner support member so that the outer cylinder and the inner cylinder are integrated. A first trap member in which an outflow port is formed and a second trap member in which an inflow port is formed; and a cylindrical shape in which the first trap member and the second trap member are screwed together The trap body,
An inner support member that is removably mounted with a cylindrical inner that forms a sealed water space, and includes an inner support member that is threadedly engaged with the second trap member on the inlet side and supports the inner. ,
The drain trap body according to claim 1, wherein the inner support member can be screwed into a threaded portion of the first trap member with the second trap member. A first trap member in which an outflow port is formed and a second trap member in which an inflow port is formed; and a cylindrical shape in which the first trap member and the second trap member are screwed together The trap body,
A cylindrical inner that is detachably mounted from the inlet and forms a sealed water space,
An intermediate member that can be attached by screwing to each of the first trap member and the second trap member between the first trap member and the second trap member. Drain trap. A cylindrical inner that is detachably attached to the trap body formed with an inflow port and an outflow port,
A bottomless cylindrical inner cylinder,
A bottomed cylindrical outer cylinder,
The inner cylinder has a connecting part provided with an engaging projection, an eave part in which an opening for draining water is formed, and a cylindrical body in which an upper end is formed integrally with the opening. And
The outer cylinder has a bottomed cylindrical sealing part with an opening formed in the upper part, and an attachment part provided with an engagement hole with which the engagement protrusion can be engaged,
The inner for drainage trap, wherein the inner is detachably attached to the inside of the trap body in a state where the engaging protrusion is engaged with the engaging hole.   The inner for drainage trap according to claim 7, wherein the inner has a perforated groove or slit along a circumferential direction of an outer peripheral surface of the inner cylinder and an outer peripheral surface of the outer cylinder. A cylindrical inner that is detachably attached to the trap body formed with an inflow port and an outflow port,
A bottomless cylindrical inner cylinder having a flange formed with an opening for draining water and a cylinder whose upper end is formed integrally with the opening;
It has a bottomed cylindrical water-sealed part with an opening formed at the top, and comprises a bottomed cylindrical outer cylinder that is supported by the inner cylinder by fitting to the inner cylinder,
The inner is integrated with the inner cylinder and the outer cylinder, and is detachably attached to the trap body,
A drain trap inner, wherein the outer cylinder is adjustable in height in the axial direction by cutting. A cylindrical inner that is detachably attached to the trap body formed with an inflow port and an outflow port,
An inner cylinder having a bottomless cylindrical shape, and an inner cylinder having a grip portion at an inlet side opening;
A bottomed cylindrical outer cylinder,
A connecting member disposed in the cylinder of the inner cylinder and connecting the bottom of the outer cylinder and the gripping part;
The connecting member is detachably connected to at least one of the outer cylinder and the inner cylinder,
The inner for drainage traps, wherein the inner cylinder and the outer cylinder are integrally attached to the trap body so as to be removable.   12. The drain trap inner according to claim 11, wherein the connecting member connects a central portion of the grip portion of the inner cylinder and a central portion of the bottom portion of the outer cylinder.   A drainage trap in which the trap body according to any one of claims 8, 10, and 11 is attached to a trap body.

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