JP2011247021A - Cleaning port structure for horizontal main pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning port structure for a horizontal main pipe, capable of smoothly removing dust deposited inside the horizontal main pipe before reaching a treatment tank.SOLUTION: The cleaning port structure S for the horizontal main pipe is provided so as to remove dust deposited inside the horizontal main pipe 8 for guiding waste water to the treatment tank. The cleaning port structure S includes: a cleaning port 21 which is provided on an upper side part 19 on the peripheral wall 18 of the horizontal main pipe 8 and opened roughly in a rectangular shape that extends along the axial direction AD of the horizontal main pipe 8; a lid body 23 which closes the cleaning port 21 so as to be opened; and a clamp body 28 which pressurizes and attaches the lid body 23 to the outer peripheral surface 8a of the horizontal main pipe 8 in the state of closing the cleaning port 21 by the lid body 23 while abutting the outer peripheral edge 23a of the lid body 23 to the peripheral edge 20 of the cleaning port 21.

Description

  The present invention relates to a horizontal main pipe cleaning port structure provided for removing dust (especially eggs and shells of shells) accumulated in a horizontal main pipe that guides drainage to a processing tank such as a high-rise apartment house.

  Conventionally, in high-rise apartments, etc., household garbage is pulverized by a disposer and flows into a treatment tank together with waste water from the kitchen sink system, and in the treatment tank, aeration treatment / precipitation treatment, etc. It flowed into sewage (see, for example, Patent Document 1).

JP 2009-189917 A

  However, if trash crushed by the disposer contains eggs, shells, shells, etc. shells (collectively these are called eggshells), the horizontal main pipe from the drainage stack to the treatment tank In this part, the accumulation of eggshells is inevitable, and the drainage performance of the horizontal main pipe may be deteriorated or the horizontal main pipe may be clogged.

  In addition, even if high-pressure washing water is flowed from a portion of a cleaning outlet such as a drainage stand upstream of the horizontal main pipe, only a sludge-like substance flows, and the deposited eggshell itself becomes smooth. In this state, the state of being accumulated in the horizontal main pipe is maintained, and it is difficult to easily discharge from the horizontal main pipe, and it is easy to cause a situation where the horizontal main pipe is clogged or the drainage performance of the horizontal main pipe is lowered.

  This invention solves the above-mentioned subject, and it aims at providing the cleaning opening structure for horizontal main pipes which can remove smoothly the deposits accumulated in the horizontal main pipe until it reaches a processing tank.

The horizontal main pipe cleaning port structure according to the present invention is a horizontal main pipe cleaning port structure provided for removing dust accumulated inside the horizontal main pipe for leading the waste water to the treatment tank,
A cleaning port that is provided in an upper portion of the peripheral wall of the horizontal main pipe and opens in a substantially rectangular shape extending along the axial direction of the horizontal main pipe;
A lid that closes the cleaning opening so that it can be opened;
Fastening means for pressing and attaching the lid to the outer peripheral surface of the horizontal main pipe in a state where the cleaning mouth is closed by the lid while the outer circumference of the lid is in contact with the circumference of the cleaning mouth;
Configured with
While the outer peripheral edge of the lid is in contact with the peripheral edge of the cleaning port, the fastening means is tightened in a state where the cleaning port is closed by the lid, and the lid is pressed against the outer peripheral surface side of the horizontal main pipe. The mouth is closed.

  In the horizontal main pipe cleaning port structure according to the present invention, the cleaning port can be opened by loosening the fastening means and removing the lid from the horizontal main pipe when removing dust. The cleaning port is opened in the upper part of the peripheral wall of the horizontal main pipe, and even if drainage itself remains in the horizontal main pipe, the wastewater does not flow down, that is, without immersing the surroundings, removing dust. It becomes possible to do. Further, the cleaning opening is opened in a substantially rectangular shape extending along the axial direction of the horizontal main pipe, and on the inner peripheral surface side of the lower peripheral wall of the horizontal main pipe, a hand or a scoop along the axial direction of the horizontal main pipe, or The vacuum hose can be moved, so that dust can be easily squeezed or sucked, and the dust removal operation can be performed smoothly.

  After the dust is removed, the outer peripheral edge of the lid is brought into contact with the peripheral edge of the cleaning port, and the fastening member is tightened in a state where the cleaning port is closed by the lid, and the outer peripheral surface of the horizontal main pipe is tightened. If it is pressed to the side, the cleaning port can be closed by the lid, and then the cleaning port is blocked even if drainage from each residence is collected and passes through the horizontal main pipe. Therefore, drainage can be smoothly led to the treatment tank. The cleaning port is opened in the upper part of the peripheral wall of the horizontal main pipe, and when the lid is pressed against the outer peripheral surface of the horizontal main pipe, the outer peripheral edge of the lid is simply pressed down. It is possible to press against the outer peripheral surface of the horizontal main pipe serving as the peripheral edge of the cleaning port, and it is possible to stably ensure the closed state of the cleaning port by the lid.

  Therefore, in the cleaning structure for the horizontal main pipe according to the present invention, the dust accumulated in the horizontal main pipe up to the treatment tank can be removed smoothly, and after the removal, drainage can be smoothly guided to the treatment tank. it can.

  Note that the cleaning port can be opened in the cross section perpendicular to the axis of the horizontal main pipe with the portion directly above the center of the horizontal main pipe as the center and the opening angle from the center of the horizontal main pipe within the range of 90 to 120 °. desirable. This is because if the opening angle of the cleaning port is less than 90 °, the opening width of the cleaning port becomes narrow and it becomes difficult to efficiently trash, and if the opening angle of the cleaning port exceeds 120 °, the lid This is because, when the body is pressed against the outer peripheral surface of the horizontal main pipe, it is difficult to stably press both lower edge sides of the outer peripheral edge of the lid against the outer peripheral surface of the horizontal main pipe.

Further, in the horizontal main pipe cleaning port structure according to the present invention, a displacement regulating projection capable of regulating the displacement in the direction along the axial direction and the circumferential direction of the horizontal main tube in the lid when the cleaning port is closed,
Projects on the lower surface side of the lid so that it can be positioned against the outer peripheral edge of the lid so that it can be positioned and protruded from the horizontal main pipe, or can be regulated against the inner edge of the cleaning port. As established
It is desirable to arrange.

  In such a configuration, when the lid is arranged so as to close the cleaning port, the lid causes the displacement restricting projection to abut the outer peripheral edge of the lid or the inner edge of the cleaning port, and Since the displacement along the axial direction and the circumferential direction is restricted, the closed state of the lid cleaning port can be stably ensured even when the fastening means is tightened. Also, when placing the lid so as to close the cleaning port, the displacement restricting projection may be brought into contact with the outer peripheral edge of the lid or the inner edge of the cleaning port, or may not be brought into contact with them. The displacement regulating projection and the outer edge of the lid or the inner edge of the cleaning port can be used as a guide to the closed position of the lid, and even if the cleaning port is greatly opened in the upper part of the horizontal main pipe In addition, the lid can be arranged at the closed position of the cleaning port.

Furthermore, the fastening means is
A plurality of annular clamps arranged along the circumferential direction of the horizontal main pipe, brought into contact with the outer peripheral surface of the horizontal main pipe together with the lid, and capable of reducing the diameter of the inner peripheral surface;
A coupling body in which the clamp is coupled along the axial direction of the horizontal main pipe;
Provided and configured,
Each clamp has a pair of half-cylindrical gripping rods connected to each other by hinges, and the open ends of the pair of gripping rods apart from the hinges are screwed together to reduce the inner peripheral side. It is desirable to construct from a hinge clamp that is made to have a diameter.

  In such a configuration, by fixing the tightening torque of the screw of each clamp, the pressure contact force to the peripheral edge of the cleaning port at the outer peripheral edge of the cover body due to the reduced diameter is changed to each part of the outer peripheral edge of the cover body. Can be made uniform, and the watertight performance of the lid with the cleaning port closed can be stabilized. When a screw is tightened, if a torque wrench is used, the clamp can be easily tightened with a constant tightening torque even if the operator is different, and a stable watertight performance of the lid is ensured. be able to.

  In the above configuration, the annular clamps are connected to the connecting body so as to be arranged along the axial direction of the horizontal main pipe without being disjointed, and are removed from the cleaning opening of the lid. Each clamp can be easily placed on the lid and horizontal main pipe without shifting the position as much as possible and without wobbling. It can be loosened or tightened, and the operation of removing and attaching the lid can be performed smoothly.

  Further, a part provided with a cleaning port and a portion to which the lid is attached is disposed in an assembly pipe that is substantially the same as the inner and outer diameters of the horizontal main pipe, and this assembly pipe is cut off from the main body of the horizontal main pipe. It is configured to be connected to a part using a pipe joint, and if a lid is assembled to this assembled pipe using a fastening means, a cleaning port and a cleaning device capable of removing dust from the horizontal main pipe are cleaned. A lid that closes the mouth can be disposed. That is, in the configuration using such an assembly pipe, a cleaning port capable of removing dust can be accurately placed in an existing horizontal main pipe at a place where the eggshell is likely to accumulate, Inflow of eggshell into the processing tank and clogging of the horizontal main pipe can be easily prevented.

It is a schematic perspective view explaining the site | part by which the cleaning-mouth structure of one Embodiment of this invention is arrange | positioned. It is a schematic plan view explaining the site | part by which the cleaning mouth structure of embodiment is arrange | positioned. It is a schematic partial front view explaining the cleaning port structure of an embodiment. It is a schematic sectional drawing of the cleaning mouth structure of embodiment, and respond | corresponds to the IV-IV site | part of FIG. It is an exploded view of the component used for embodiment. It is sectional drawing of the cover body used for embodiment, and respond | corresponds to the VI-VI site | part of FIG. It is a figure explaining the obstruction | occlusion state of the cleaning port in the cover body used for embodiment. It is a figure explaining the assembly | attachment state to the main body of the horizontal main pipe in the assembly pipe of embodiment. It is a figure explaining the operation | work which opens the cleaning mouth of embodiment and removes an eggshell. It is a general | schematic fragmentary front view explaining the cleaning mouth structure of the modification of embodiment. It is a schematic sectional drawing of the cleaning port structure shown in FIG. 10, and respond | corresponds to the XI-XI site | part of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, a portion where the cleaning mouth structure S of the embodiment is disposed is a high-rise apartment house equipped with a disposer in a kitchen sink. The horizontal main pipe 8 is a part of the horizontal main pipe 8, and the drainage from a plurality of drainage standpipes 3 dedicated to the kitchen sink system in which garbage crushed by the disposer at each door is passed. It is a part to be gathered and a part until the drainage flows into the treatment tank 5. Further, in the case of the embodiment, the portion provided with the cleaning port structure S of the horizontal main pipe 8 is provided in the area of the piping pit 2 of the high-rise apartment 1 and flows downward from the vicinity of the entrance E in the vertical direction. The eggshell C is disposed in an area where the eggshell C is likely to be deposited in the vicinity of the bent portion 7 when the water is bent and the drainage flows in the horizontal direction. In addition, the code | symbol 4 of FIG. 1 is a leg joint, and the code | symbol 6 of FIG. 2 is a drain.

  And as shown to AC of FIG. 8, the cleaning mouth structure S of embodiment cuts off the part of the main body 9 of the horizontal main pipe 8, and it is a pipe joint in the edge parts 11 and 12 of the cutting site | part 10. 14, the assembly pipe 17 is connected. The assembly tube 17 is assembled with a cleaning port 21, a lid body 23 that closes the cleaning port 21, and a clamp body 28 as a fastening means 27 that attaches the lid body 23 to the assembly tube 17. In the case of the embodiment, the pipe joint 14 uses a non-hub coupling. By tightening the bolt 14b and reducing the diameter of the annular sleeve 14a provided with the seal rubber on the inner peripheral side, the body 9 The end portions 11 and 12 and the end portions 17a and 17b of the assembly pipe 17 can be connected while ensuring sealing performance.

  As with the main body 9 of the horizontal main pipe 8, the assembly pipe 17 is composed of a cylindrical vinyl chloride pipe material (vinyl chloride pipe) and has a nominal diameter of about 125 to 200φ. The inner diameter and the outer diameter are made to coincide with each other. In the case of the embodiment, the main body 9 and the assembly pipe 17 are PVC pipes having a nominal diameter of 150φ. In the case of the embodiment, as shown in FIG. 8, the length dimension L0 of the excision site 10 is about 660 mm, and as shown in FIGS. 4 and 5, the length dimension L1 of the assembly tube 17 is about 650 mm, The outer diameter D0 of the assembled tube 17 is 165 mm, and the inner diameter d0 of the assembled tube 17 is 147 mm.

  The cleaning port 21 provided in the assembly pipe 17 (the horizontal main pipe 8) is provided in the upper part 19 in the peripheral wall 18 of the assembly pipe 17 as shown in FIGS. It opens in a substantially rectangular shape that extends along the direction AD. The cleaning port 21 is disposed higher than the center O of the horizontal main pipe 8 (assembled pipe 17) (see FIG. 4). In the case of the embodiment, the cleaning port 21 has a height dimension H from the center O of 47.5 mm, and is disposed at a position higher than 1/4 (147 × 0.25 = 37) of the inner diameter dimension d0. Has been. In the case of the embodiment, the cleaning port 21 has a length L2 of 400 mm (see FIG. 5) and an opening width B of 113 mm (see FIG. 4).

  As shown in A of FIG. 7, the cleaning port 21 has an opening angle from the center O of the horizontal main tube 8 with the portion 19 a immediately above the center O of the horizontal main tube 8 being the center in the cross section perpendicular to the axis of the horizontal main tube 8. The opening is made with θ in the range of 90 to 120 °. In the case of the embodiment, the opening angle θ is 100 °.

  The opening angle θ is set to 90 ° or more so that the cleaning port 21 can secure an opening width B at which dust can be easily collected, and the lid body 23 is laterally moved by using the clamp body 28 as the fastening means 27. When pressing the outer peripheral surface 8 a of the main pipe 8, the lower edges 23 ab and 23 ab on both sides of the outer peripheral edge 23 a of the lid 23 are smoothly pressed to the outer peripheral surface 8 a of the horizontal main pipe 8 at the peripheral edge 20 of the cleaning port 21. Thus, it is set as 120 degrees or less.

  In addition, the length L2 in the front-rear direction of the cleaning port 21 is too short to easily trash, and if too long, there is a possibility that the closing performance of the lid may be reduced. It is desirable to be about 5 times. Incidentally, in the case of the embodiment, the length dimension L2 is 400 mm, the opening width B is 113 mm, and the length dimension L2 is about 3.5 times the opening width B.

  Further, a square columnar displacement regulating protrusion 37 is fixed to the outer peripheral surface 8a of the peripheral edge 20 of the cleaning port 21 in the assembly pipe 17 (horizontal main pipe 8). In the case of the embodiment, there are a total of six locations including a portion facing in the axial direction AD of the horizontal main pipe 8 and a portion facing in the circumferential direction CD of the horizontal main pipe 8 at the peripheral edge 20 of the cleaning port 21. When the lid body 23 is arranged at a position where the cleaning port 21 is closed, the displacement regulating projections 37 are arranged so that the lid body 23 is in the axial direction AD of the horizontal main pipe 8 as shown in FIGS. Even if it is going to shift in the direction along the circumferential direction CD, the outer peripheral edge 23a of the lid body 23 is brought into contact with it to regulate the displacement of the lid body 23. Therefore, even if the lid 23 is displaced after the cleaning port 21 is closed, it is possible to prevent the cleaning port 21 from being opened by bringing the outer peripheral edge 23 a into contact with the displacement regulating projection 37.

  The lid body 23 is formed in a half-cylindrical shape capable of closing the cleaning port 21, and is made of vinyl chloride, like the assembly tube 17. The lid 23 has a sealing rubber 26 such as chloroprene fixed to substantially the entire lower surface 23b. In the case of the embodiment, the lid body 23 has the cleaning port 21 made of a PVC pipe whose outer diameter is the same as that of the assembly pipe 17 (horizontal main pipe 8) and whose thickness is thinner than that of the assembly pipe 17. It is cut out and formed as a size that can be closed. Therefore, at the beginning of the placement of the lid 23 to the cleaning port 21, as shown in FIG. 7A, the lid 23 is placed in a state of being lifted from the assembly tube 17, and then the clamp body 28 as the fastening means 27. 7, the sealing rubber 26 on the outer peripheral edge 23 a of the lid body 23 comes into pressure contact with the peripheral edge 20 of the cleaning port 21 as shown in FIG. 7B.

  Further, an inverted U-shaped handle 25 is attached to the center 23e of the lid 23 so as to protrude upward.

  The clamp body 28 as the fastening means 27 attaches the lid body 23 to the horizontal main pipe (assembled pipe 17) 8, and includes a plurality (three in the embodiment) of clamps 30 and the clamp 30 as the axis of the horizontal main pipe 8. And a connecting body 29 connected along the direction AD. In the case of the embodiment, the coupling body 29 is formed from a steel angle material.

  The clamp 30 is disposed along the circumferential direction CD of the horizontal main pipe 8, is brought into contact with the outer peripheral surface 8 a of the horizontal main pipe (assembled pipe 17) 8 together with the lid body 23, and the inner peripheral surface can be reduced in diameter. Annular. Furthermore, in the case of the embodiment, the clamp 30 includes a pair of half-cylindrical sheet metal gripping bars 32 and 33 that are connected to each other by a hinge 31 as a hinge clamp. The open ends 32a and 33a side away from the hinge 31 are fixed to each other with screws 34, and the inner peripheral side is reduced in diameter. A nut 35 corresponding to the screw 34 is fixed to the open end 32a side. And each clamp 30 has the holding ring 33 side fixed to the coupling body 29 so that both ends 23c, 23d and the center 23e along the axial direction AD of the horizontal main pipe 8 of the lid body 23 can be fastened.

  In the cleaning port structure S, as shown in FIG. 7A, the outer peripheral edge 23a of the lid 23 is brought into contact with the peripheral edge 20 of the cleaning port 21 while the cleaning port 21 is closed by the lid 23. If each clamp 30 of the clamp body 28 is tightened and the lid body 23 is pressed to the outer peripheral surface 8a side of the horizontal main pipe (assembled pipe 17) 8, the cleaning port 21 can be closed. When the dust (eggshell) C is removed, the screw 34 in each clamp 30 of the clamp body 28 is loosened and removed from the nut 35, and the open end of each clamp 30 as shown by the two-dot chain line in FIG. If the 32a, 33a side is opened widely and the cover body 23 is removed from the horizontal main pipe (assembled pipe 17) 8, the cleaning port 21 can be opened as shown in FIG.

  The cleaning port 21 is opened in the upper portion 19 of the peripheral wall 18 of the horizontal main pipe (assembled pipe 17) 8, and even if the drainage itself remains in the horizontal main pipe 8, the drainage does not flow down. That is, the eggshell C can be removed without immersing the surroundings. Moreover, the cleaning port 21 is opened in the substantially rectangular shape extended along the axial direction AD of the horizontal main pipe 8, and it shows to the inner peripheral surface side of the lower peripheral wall 18b of the horizontal main pipe 8 by B, C of FIG. Thus, a hand, a scoop, etc. can be moved along the axial direction AD of the horizontal main pipe 8, and the eggshell C can be easily crazed and the removal operation of the eggshell C can be performed smoothly. In the case of the illustrated example, an operator wearing rubber gloves puts the accommodation basket N on the lower peripheral wall 18b from the cleaning port 21, puts the eggshell C into the accommodation basket N while scooping the eggshell C, and accommodates the accommodation basket N. The operation of putting the eggshell C placed in the box into a predetermined bucket Y and removing the eggshell C deposited on the horizontal main pipe 8 is shown. Incidentally, when the eggshell C is removed, as shown by a two-dot chain line in FIG. 9C, an operator may insert the vacuum hose VH from the cleaning port 21 as appropriate and remove the eggshell C by suction. .

  Then, after the dust (eggshell) C is removed, the outer peripheral edge 23a of the lid 23 is brought into contact with the peripheral edge 20 of the cleaning port 21 while the cleaning port 21 is closed by the lid 23. If each clamp 30 is tightened and the lid body 23 is pressed against the outer peripheral surface side of the horizontal main pipe 8, the cleaning port 21 can be closed by the lid body 23, and then the drainage from each residence is gathered. Even if it passes through the horizontal main pipe 8, the cleaning port 21 is closed, so that drainage can be smoothly led to the treatment tank 5. Further, the cleaning port 21 is opened in the upper portion 19 of the peripheral wall 18 of the horizontal main pipe 8, and when the cover body 23 is pressed against the outer peripheral surface 8 a of the horizontal main pipe 8, the cover body 23 is simply pressed downward. However, the outer peripheral edge 23a of the lid 23 can be pressed against the outer peripheral surface 8a of the horizontal main pipe 8 that becomes the peripheral edge 20 of the cleaning port 21, and the closed state of the cleaning port 21 by the lid 23 can be stably maintained. Can be secured.

  Therefore, in the cleaning port structure S of the embodiment, the dust (egg shell) C accumulated in the horizontal main pipe 8 up to the processing tank 5 can be removed smoothly, and after the removal, the waste can be smoothly discharged to the processing tank 5. Can guide you.

  In particular, in the embodiment, the cleaning port 21 has a central portion 19a directly above the center O of the horizontal main pipe 8 in the axial orthogonal cross section of the horizontal main pipe 8 and an opening angle θ from the center O of the horizontal main pipe 8 is 90. The opening width B of the cleaning port 21 can be sufficiently secured, and both the lower edges 23ab of the outer peripheral edge 23a of the lid 23 can be stably provided on the outer peripheral surface of the horizontal main pipe 8. It can be pressed against 8a.

  Further, in the cleaning port structure S of the embodiment, the outer peripheral surface 8a of the horizontal main pipe 8 at the peripheral edge 20 of the cleaning port 21 abuts on the outer peripheral edge 23a of the lid 23 and the lid 23 when the cleaning port 21 is closed. Displacement restricting projections 37 capable of restricting displacement along the direction of the axial direction AD and the circumferential direction CD of the horizontal main pipe 8 are disposed. Therefore, if the lid body 23 is arranged so as to close the cleaning port 21, the lid body 23 brings the outer peripheral edge 23a into contact with the displacement restricting projection 37, so that the axial direction AD and the circumferential direction CD of the horizontal main pipe 8 are brought into contact. Since the displacement in the direction along the line is restricted, the closed state of the cleaning port 21 of the lid 23 can be stably secured even if the operation of tightening each clamp 30 is performed. Further, when the lid body 23 is arranged so as to close the cleaning port 21, the outer peripheral edge 23 a is brought into contact with the displacement regulating projection 37, or is not brought into contact with the displacement regulating projection 37. The lid 23 can be easily disposed at the closed position of the cleaning port 21 even if the cleaning port 21 can be used as a guide to the closed position of the body 23 and the upper portion 19 of the horizontal main pipe has a large opening. .

  In the embodiment, the fastening means 27 is disposed along the circumferential direction CD of the horizontal main pipe 8, abuts against the outer peripheral surface of the horizontal main pipe 8 together with the lid 23, and the inner peripheral surface can be reduced in diameter. A plurality of annular clamps 30 and a coupling body 29 in which the clamps 30 are coupled along the axial direction AD of the horizontal main pipe 8 are provided. Further, each clamp 30 includes a pair of half-cylinder-shaped gripping rods 32 and 33 connected to each other by hinges 31, and open ends 32 a of the pair of gripping rods 32 and 33 apart from the hinge 31. 33a is composed of a hinge clamp that secures each other with screws 34 and reduces the diameter of the inner peripheral side.

  In such a configuration, the hinge clamp 30 makes the tightening torque of the screw 34 of each clamp 30 constant so that the outer peripheral edge 23a of the lid 23 with the reduced diameter is pressed against the peripheral edge 20 of the cleaning port 21. The force can be made uniform at each part (both ends 23c, 23d and the center 23e) of the outer peripheral edge 23a of the lid 23, and the watertight performance of the lid 23 with the cleaning port 21 closed can be stabilized. When the screw 34 is tightened, if a torque wrench is used, the clamp 30 can be easily fastened with a constant tightening torque even if the operator is different, and the watertight performance of the lid 23 is stable. Can be secured.

  Further, in the embodiment, each annular clamp 30 is connected to the connection body 29 so as to be arranged along the axial direction AD of the horizontal main pipe 8 without being separated, and the lid body 23 is cleaned. When removing from the mouth 21 or attaching to the cleaning mouth 21, the clamps 30 are arranged as much as possible with respect to the lid body 23 and the horizontal main pipe 8 without being displaced as much as possible. This makes it possible to easily loosen or tighten the cover 23 and to smoothly remove and attach the lid 23.

  Of course, if the above points are not taken into account, the lid 23 is directly screwed to the peripheral edge of the cleaning port 21 with a screw itself as a fastening means and attached to the horizontal main pipe 8 or Bolt portions at both ends of the U-shaped bolt as the fastening means for wrapping the outer peripheral surface of the lower peripheral wall 18b are protruded upward from both edges of the lid body 23, and nuts are provided on the bolt portions. The lid 23 may be attached to the horizontal main pipe 8 so as to be pressed against the peripheral edge 20 of the cleaning port 21 by fastening and fastening.

  Further, in the embodiment, the part provided with the cleaning port 21 and the portion to which the lid 23 is attached is disposed in the assembly pipe 17 that is substantially the same as the inner and outer diameters of the main body 9 of the horizontal main pipe 8. Therefore, as shown in FIG. 8, if there is a portion where the eggshell C is likely to be deposited in the horizontal main pipe 8, first, the portion is excised as shown in A of FIG. 8. Next, as shown in FIGS. 8B and 8C, the pipe joints 14 and 14 are fitted to the end portions 11 and 12 of the horizontal main pipe 8 on the main body 9 side, and the assembly pipe 17 is disposed. As shown in the figure, dust can be removed from the horizontal main pipe 8 by connecting the end parts 17a, 17b of the assembled pipe 17 and the end parts 11, 12 of the main body 9 with pipe joints 14, 14. The cleaning port 21 and the lid body 23 that closes the cleaning port 21 can be disposed. That is, in the configuration using such an assembly pipe 17, the cleaning port 21 capable of removing dust can be accurately placed in the existing horizontal main pipe 8 at a place where the eggshell C is easily deposited, Inflow of the eggshell C into the processing tank 5 and clogging of the horizontal main pipe 8 in the existing apartment house can be easily prevented.

  Of course, if the above points are not taken into consideration, the horizontal main pipe 8 may be configured with the cleaning port 21, the lid body 23, and the clamp body 28 provided in advance.

  In the embodiment, as shown in FIG. 2, the case where the cleaning port structure S is provided on the upstream portion side of the horizontal main pipe 8 laid in the pipe pit 2 is shown by a two-dot chain line in FIG. 2. In this way, the cleaning port structure S may be provided in the vicinity of the center core or the portion of the horizontal main pipe 8 in the vicinity of the drainage tub 6 as long as the eggshell C is easily deposited.

  Moreover, although the case where the opening shape of the cleaning port 21 provided in the horizontal main pipe 8 is a rectangle extending along the axial direction AD of the horizontal main pipe 8 is illustrated in the embodiment, the cleaning port 21 is not necessarily a strict rectangle. Need only be opened in a substantially rectangular shape extending along the axial direction AD of the horizontal main pipe 8, for example, a shape such as an oval or an ellipse whose both ends along the axial direction AD of the horizontal main pipe 8 are semicircular. Is included in the substantially rectangular shape of the present invention.

  Furthermore, in the embodiment, the case where the displacement restricting protrusion 37 for restricting the displacement of the lid body 23 is provided on the outer peripheral surface 8a of the assembly pipe (lateral main pipe 8) 17 is shown, but as shown in FIGS. The displacement restricting protrusion 37A may be provided on the lid body 23 side. That is, these restricting projections 37A are respectively provided in the vicinity of the four corners of the outer peripheral edge 23a on the lower surface 23b side of the lid body 23 so as to project downward, and when the lid body 23 is displaced, It arrange | positions so that it may contact | abut to the inner edge 22 side of 21. FIG. In this configuration, when the lid body 23 is disposed at a position where the cleaning port 21 is closed, even if the lid body 23 tends to be displaced in the direction along the axial direction AD and the circumferential direction CD of the horizontal main pipe 8, the displacement regulating protrusion 37 </ b> A. However, it comes into contact with the inner edge 22 of the cleaning port 21 and restricts the displacement of the lid 23. The lid body 23 is partially provided with a seal rubber 26A on the outer peripheral edge 23a, and the lid body 23 may be configured in this way.

5 ... treatment tank,
8 ... Horizontal pipe,
8a ... outer peripheral surface,
9 ... body,
10 ... Resection site,
17 ... Assembly pipe,
18 ...
19 ... upper part,
19a ... upper top,
21 ... cleaning mouth,
23 ... the lid,
27 ... Fastening means,
28 ... Clamp body,
29 ... Connected body,
30 ... Clamp,
31 ... Hinge,
32, 33 ... gripping rod,
32a, 33a ... open ends,
34 ... Screw,
37, 37A: Deviation restricting projections,
C ... eggshell,
S: Cleaning mouth structure.

Claims (5)

A cleaning structure for a horizontal main pipe provided to remove dust accumulated inside the horizontal main pipe that guides wastewater to the treatment tank,
A cleaning port that is provided in an upper portion of the peripheral wall of the horizontal main pipe and opens in a substantially rectangular shape extending along the axial direction of the horizontal main pipe;
A lid for closing the cleaning opening so as to be openable;
Fastening means for pressing and attaching the lid body to the outer peripheral surface of the horizontal main pipe in a state where the outer circumferential edge of the lid body is in contact with the circumferential edge of the cleaning port and the cleaning port is closed by the lid body. ,
Configured with
While the outer peripheral edge of the lid is in contact with the peripheral edge of the cleaning port, the fastening means is tightened in a state where the cleaning port is closed by the lid, and the lid is moved to the outer peripheral surface side of the horizontal main pipe. The cleaning port structure for a horizontal main pipe, wherein the cleaning port is closed by being pressed.   The cleaning port is opened with the portion directly above the center of the horizontal main pipe in the center and the opening angle from the center of the horizontal main pipe in the range of 90 to 120 ° in the axial orthogonal cross section of the horizontal main pipe. The cleaning structure for a horizontal main pipe according to claim 1, wherein: A displacement restricting projection capable of restricting a displacement in a direction along the axial direction and the circumferential direction of the horizontal main pipe in the lid body when the cleaning port is closed,
The lid body can be regulated by being in contact with the outer peripheral edge of the lid so as to protrude from the horizontal main pipe, or can be regulated by being in contact with the inner edge of the cleaning port. So that it protrudes on the bottom side,
The horizontal main pipe cleaning port structure according to claim 1, wherein the cleaning structure is disposed. The fastening means is
A plurality of annular clamps arranged along the circumferential direction of the horizontal main pipe, in contact with the outer peripheral surface of the horizontal main pipe together with the lid, and capable of reducing the diameter of the inner peripheral surface;
A connecting body in which the clamp is connected along the axial direction of the horizontal main pipe;
And configured with
Each of the clamps includes a pair of halved cylindrical grips connected to each other by hinges, and screws the open ends of the pair of grips away from the hinges to each other. The cleaning structure for a horizontal main pipe according to any one of claims 1 to 3, wherein the cleaning structure is composed of a hinge clamp for reducing the diameter of the side. The portion provided with the cleaning port, and the portion to which the lid is attached is disposed in an assembly tube that is substantially the same as the inner and outer diameters of the horizontal main tube,
The assembly pipe is connected to the excision site cut out from the main body of the horizontal main pipe using a pipe joint,
The horizontal main pipe cleaning port structure according to any one of claims 1 to 4, wherein the horizontal main pipe cleaning port structure is disposed in the horizontal main pipe.

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