JP5635317B2 - Cleaning structure for horizontal main pipe and its laying method - Google Patents

Description

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

  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 cleaning the kitchen sink system pipe provided with the disposer, for example, from the vicinity of the drainage basin connected to the horizontal main pipe, the rear injection nozzle is inserted into the horizontal main pipe and the washing water injected from the rear injection nozzle is used. Wash the water inside the horizontal main pipe, and then insert the front injection nozzle from the cleaning port provided in the drainage stack into the predetermined number of drainage stacks in the kitchen sink system connected to the horizontal main pipe, and spray from the front injection nozzle Use to clean the drainage stack. After that, again, from the vicinity of the drainage basin, insert the rear injection nozzle into the horizontal main pipe, clean the inside of the horizontal main pipe using cleaning water sprayed from the rear injection nozzle, and install the kitchen sink system with a disposer Had been cleaning.

  However, as described above, even if cleaning water flows from the injection nozzle inserted in the horizontal main pipe, or even if cleaning water flows from a portion of a cleaning port such as a drainage stand pipe upstream of the horizontal main pipe, As the sludge is washed away, the deposited eggshell itself becomes smooth and maintains the state of being deposited in the horizontal main pipe. It was easy to cause a situation where the main pipe was clogged or the drainage performance of the horizontal main pipe was lowered.

  This invention solves the above-mentioned subject, and it aims at providing the cleaning port structure for horizontal main pipes and the laying method which can remove smoothly the dust deposited in the horizontal main pipes to the processing tank. .

The horizontal main pipe cleaning port structure according to the present invention is a horizontal main pipe cleaning port structure provided in order to remove dust accumulated in the horizontal main pipe leading the drainage to the treatment tank,
A cleaning port opening in the upper part of the peripheral wall 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 side 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 brought into contact with the circumference of the cleaning mouth;
A positioning mark disposed on the periphery of the cleaning port to enable positioning of the outer periphery of the lid when the cleaning port is closed;
Configured with
Positioning the outer peripheral edge of the lid body with reference to the positioning mark, the lid body is brought into contact with the peripheral edge of the cleaning port, and the cleaning port is closed by the lid body. by pressing on the outer peripheral surface of a structure in which cleaning opening is closed,
As the configuration in which the cleaning port is formed in the existing horizontal main pipe,
The positioning mark is disposed on the pattern sheet to be attached to the existing horizontal main pipe,
The pattern sheet is provided with a mark for perforating that defines a perforation position when the cleaning port is perforated in the existing horizontal main pipe .

  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 at the upper portion of the peripheral wall of the horizontal main pipe, and even if drainage itself remains in the horizontal main pipe, the drainage does not overflow, i.e. without submerging the surroundings. It can be removed. The removal of dust can be performed by using suction of a vacuum hose inserted from a cleaning port, or by scraping dust using a hand or a scoop.

  Then, after the dust is removed, the outer peripheral edge of the lid is positioned using the positioning mark, and is brought into contact with the peripheral edge of the cleaning port, and the fastening means is closed with the lid closed. By tightening and pressing the lid to the outer peripheral surface side of the horizontal main pipe, the cleaning port can be accurately closed by the lid arranged accurately, and then the drainage from each dwelling gathers Even if it passes through the horizontal main pipe, drainage can be smoothly guided to the treatment tank. The cleaning port is opened at 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 periphery of the lid is simply pressed downward. Can be easily pressed to the outer peripheral surface side of the horizontal main pipe serving as the peripheral edge of the cleaning port, and the closed state of the cleaning port by the lid can be stably secured.

  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.

And in the cleaning structure for the horizontal main pipe according to the present invention, as a configuration for forming the cleaning port in the existing horizontal main pipe,
The positioning mark is arranged on the pattern sheet to be attached to the existing horizontal main pipe,
The paper sheet is configured by providing a mark, a drilling which defines a drilling position when drilling process the cleaning port next to the main pipe of the existing.

  In such a configuration, when the cleaning port is formed in the existing horizontal main pipe, the paper pattern sheet is adhered to the upper portion of the horizontal main pipe, and then the positioning mark is left with reference to the mark for punching the paper sheet. In this state, if the horizontal main pipe is perforated to form a cleaning port, the cleaning port and a positioning mark for positioning the lid can be easily provided for the existing horizontal main pipe. .

  And in the laying method of the cleaning structure for the horizontal main pipe as described above, the guide for the drilling position when the cleaning port is formed in the horizontal main pipe, and the positioning of the lid when the opened cleaning port is closed with the lid Can be easily performed using a single pattern sheet, and the horizontal main pipe cleaning port structure can be laid on the existing horizontal main pipe at a reduced manufacturing cost and man-hours.

  Further, in the horizontal main pipe cleaning port structure and its laying method as described above, using the pattern sheet, the existing horizontal main pipe is provided with a cleaning port capable of removing dust, in a place where the eggshell is likely to be accumulated. Therefore, it is possible to easily prevent the flow of eggshell into the processing tank and clogging of the horizontal main pipe in the existing apartment house.

  Furthermore, in the horizontal main pipe cleaning port structure and its laying method as described above, the pattern paper sheet is stuck to the upper portion of the horizontal main pipe where the cleaning port is provided, and the horizontal direction is determined based on the mark for punching the pattern sheet. Since the cleaning port is opened at the upper part of the main pipe, drainage does not overflow from the cleaning port during drilling unless a very large amount of drainage flows through the horizontal main pipe during drilling. It is also possible to lay the cleaning port structure without shutting off the water.

And in the cleaning structure for the horizontal main pipe and the laying method thereof according to the present invention, the fastening means is arranged along the circumferential direction of the horizontal main pipe, is brought into contact with the outer peripheral surface side of the horizontal main pipe together with the lid, and Consists of a plurality of annular clamps whose inner peripheral surface can be reduced in diameter,
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 to each other, and the inner diameter side is reduced in diameter. It is desirable to comprise from the hinge clamp to be made.

  In such a configuration, if the hinge clamps are screwed together so that the open ends of the pair of gripping rods are in contact with each other with the spacer in between or directly, The pressure contact force to the periphery of the cleaning port at the outer periphery can be made uniform at each location, and as a result, the lids fastened to the hinge clamps exhibit stable watertight performance, Can be occluded.

It is a schematic perspective view explaining the site | part by which the cleaning port structure of one Embodiment of this invention is laid. It is a schematic plan view explaining the site | part by which the cleaning mouth structure of embodiment is laid. 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 a figure explaining the obstruction | occlusion state of the cleaning port used for embodiment. It is a top view of the pattern paper sheet used for embodiment. It is a figure explaining the process of laying the cleaning opening structure of embodiment. It is a figure explaining the operation | work which opens the cleaning mouth of embodiment and removes an eggshell.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings. A site (laying site) 13 where a cleaning port structure S of the embodiment is laid includes a disposer in a kitchen sink as shown in FIGS. The horizontal main pipe 8 of the high-rise apartment 1 is a part of the horizontal main pipe 8, and the laying part 13 of the horizontal main pipe 8 is a dedicated part of the kitchen sink system in which garbage crushed by the disposer at each door is passed. It is a part where drainage from a plurality of drainage standpipes 3 dedicated to the sink system is gathered, and is a part from when the drainage is gathered until it flows into the treatment tank 5. Furthermore, in the case of the embodiment, the laying portion 13 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. And the eggshell C (refer FIG. 8) is arrange | positioned in the area where the bent part 7 is bent and flows in the horizontal direction in the vicinity of the bent part 7 where it is easy to deposit. In addition, the code | symbol 4 of FIG. 1 is a leg joint, and the code | symbol 6 of FIG. 2 is a drain.

  3 to 5, the cleaning port structure S of the embodiment closes the cleaning port 15 that opens to the horizontal main pipe 8, the lid 21 that closes the cleaning port 15 so as to be openable, and the cleaning port 15. And fastening means 24 for fastening the lid body 21 to the horizontal main pipe 8. Further, the cleaning port structure S is provided with a positioning mark 19 that is disposed on the peripheral edge 14 of the cleaning port 15 and enables positioning of the outer peripheral edge 21a of the lid 21 when the cleaning port 15 is closed. ing.

  The horizontal main pipe 8 is formed of a pipe material having a nominal diameter of about 125 to 200φ. In the case of the embodiment, the horizontal main pipe 8 is a polyvinyl chloride pipe having a nominal diameter of 150φ. And the cleaning port 15 is provided in the upper side part 11 (refer FIG. 4) used as the position higher than the center O of the horizontal main pipe 8 in the surrounding wall 9 of the horizontal main pipe 8, as shown to FIGS. It opens in a substantially rectangular shape (substantially oval) that extends along the axial direction AD of the horizontal main pipe 8.

  As shown in FIG. 5A, the cleaning port 15 is centered on a portion 11 a immediately above the center O of the horizontal main tube 8 in the axial orthogonal cross section of the horizontal main tube 8, and the opening angle from the center O 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 about 100 °.

  The opening angle θ is set to 90 ° or more so as to secure an opening width B that facilitates a cleaning operation for sucking or scavenging dust using the opened cleaning port 15, and as the fastening means 24. When the lid 21 is pressed against the outer peripheral surface 10 of the horizontal main pipe 8 by using the clamp 25, the lower edges 21ab, 21ab on both sides of the outer peripheral edge 21a of the lid 21 are smoothly connected to the peripheral edge of the cleaning port 15. It is set as 120 degrees or less so that it may be pressed by 14.

  Moreover, if the length L2 (see FIG. 8) in the front-rear direction of the cleaning port 15 is too short, it is difficult to clean the dust, and if it is too long, the closing performance of the lid 21 may be reduced. For this reason, it is desirable that the opening width B is larger than the opening width B. Incidentally, in the case of the embodiment, the length dimension L2 is 220 mm, and the opening width B is 113 mm.

  Further, a positioning mark 19 is provided on the peripheral edge 14 of the cleaning port 15 in the horizontal main pipe 8 for defining the position of the lid 21 when closed. In the case of the embodiment, the positioning mark 19 is formed from the outer peripheral edge 17 a of the rectangular pattern paper sheet 17, and when the cleaning port 15 is closed by the lid body 21, the entire circumference of the outer peripheral edge 21 a of the lid body 21 is positioned. The lid 21 is placed while being positioned so as to be placed inside the use mark 19.

  In the case of the embodiment, the cleaning port 15 is disposed so as to penetrate the horizontal main pipe 8 itself and the pasted pattern paper sheet 17, and the peripheral edge of the cleaning port 15 with which the outer peripheral edge 21 a of the lid body 21 abuts. 14 is actually the peripheral edge 14 of the cleaning port 15 of the pattern sheet 17 itself.

  The pattern sheet 17 is provided with positioning marks 19 for positioning when the lid 21 is closed, and defines a drilling position when the cleaning port 15 is drilled in the existing horizontal main pipe 8. As shown in FIG. 6, a hole-forming mark 18 is provided on the upper surface side as a rectangular shape. The perforation mark 18 is formed on two edge sides in the width direction of two arc marks 18a, 18a that are partially overlapped with each other and arranged in parallel in the longitudinal direction of the pattern paper sheet 17 and the overlapping portions of the arc marks 18a, 18a. It is comprised from the triangular mark 18c and 18c which are located. The pattern paper sheet 17 is formed from a sheet material such as water-resistant polypropylene, polyethylene, vinyl chloride, or other synthetic resin, cloth, paper or the like, and can be attached (adhered) to the peripheral wall 9 of the horizontal main pipe 8 on the back side. An adhesive material is provided.

  Further, on the pattern sheet 17, sticking marks 17 b and 17 c for positioning when sticking to the horizontal main pipe 8 are formed on the peripheral edge on the upper surface side. In the case of the embodiment, each sticking mark 17b, 17c is drawn in a short line shape at the center position of each side of the periphery.

  When the cleaning sheet 15 is formed in the existing horizontal main pipe 8 using the pattern sheet 17, first, as shown by the solid line in FIG. A sticking mark 32 such as a center line corresponding to the sticking marks 17b and 17c of the pattern sheet 17 (in the case of the figure, the center line) is drawn on the back side, as shown in FIG. The predetermined release paper is peeled off to expose the adhesive material layer, and the paper pattern sheet 17 is attached to the laying portion 13 of the horizontal main pipe 8 while making the sticking marks 17b and 32 coincide with each other. Next, as shown in FIGS. 7C and 7D, the cleaning port 15 is opened by a drilling machine such as Horso T or the like. At that time, two arc marks 18a and 18a of the perforation mark 18 are formed on the upper surface side of the pattern sheet 17, and two arc marks are formed using the horso T with reference to the center 18b. If the circular opening along 18a, 18a is opened and then the portions of the two triangular marks 18c are cut with an electric sander or the like, the cleaning port 15 having an approximately oval opening can be formed. In addition, since the part cut out in the arc-shaped mark 18a is attached to the horso T, it does not fall into the horizontal main pipe 8, and the part from which the triangular mark 18c is cut is also connected in advance with a gum tape or the like. If it is connected to the surrounding part by the material, it can be pulled up from the dropped horizontal main pipe 8 using the connecting material after cutting, and the remaining material to be cut off at the time of drilling the cleaning port 15 It can be prevented from leaving in the main pipe 8.

  The lid body 21 is formed in a half-cylindrical shape capable of closing the cleaning port 15 and is made of vinyl chloride, like the horizontal main pipe 8. The lid 21 has a sealing rubber 22 such as chloroprene fixed to the entire area of the lower surface 21b. In the case of the embodiment, the lid body 21 has a size that allows the cleaning port 15 to be closed from a PVC pipe whose outer diameter is the same as that of the horizontal main pipe 8 and whose wall thickness is thinner than that of the horizontal main pipe 8. Cut out and formed. Therefore, at the beginning of the arrangement of the lid 21 to the cleaning port 15, as shown in FIG. 5A, the lid 21 is arranged in a state of being lifted from the horizontal main pipe 8, and then tightened by the clamp 25 as the fastening means 24. In this case, as shown in FIGS. 5B and 5C, the seal rubber 22 on the outer peripheral edge 21 a of the lid 21 is pressed against the peripheral edge 14 of the cleaning port 15. In the case of the embodiment, the length L1 (see FIG. 8) of the lid 21 is 280 mm, which is larger than the length L2 of the cleaning port 15. Further, in a state in which the cleaning port 15 is properly closed, the lid body 21 opens the entire circumference of the outer peripheral edge 21a inside the positioning mark 19 and at a substantially equal distance from the positioning mark 19. Will be placed.

  The fastening means 24 attaches the lid body 21 to the horizontal main pipe 8, and is composed of a plurality of clamps 25 (in the embodiment, two pieces arranged near the front and rear ends of the lid body 21). Each clamp 25 is arranged along the circumferential direction CD of the horizontal main pipe 8, is brought into contact with the outer peripheral surface 10 side of the horizontal main pipe 8 together with the lid body 21, and has an annular shape capable of reducing the inner peripheral surface. . Further, in the case of the embodiment, the clamp 25 includes a pair of half-cylindrical sheet metal gripping rods 27 and 28 connected to each other by a hinge 26 as a hinge clamp. The open ends 27a and 28a side away from the hinge 26 are fixed to each other with screws 29, and the inner peripheral side is reduced in diameter. A nut 30 corresponding to the screw 29 is disposed on the open end 27a side.

  Each clamp 25 is provided with a spacer 31 on the surface on the open end 27 a side on the open end 28 a side of the gripping rod 28. The spacer 31 is used to make the separation distance between the open ends 27a and 28a constant when the screw 29 is fixed. In the case of the embodiment, the spacer 31 is formed of a nut that is screwed to the screw 29 so that the screw 29 can be prevented from falling off from the opening end 28a side, the screw 29 can be rotated, and the open end 28a is made to be the spacer 31. And the head 29a of the screw 29 (see the two-dot chain line in FIG. 4).

  In the cleaning port structure S of the embodiment, when the eggshell (dust) C is removed, the screw 29 of the clamp 25 as the fastening means 24 is loosened and the lid 21 is removed from the horizontal main pipe 8, as shown in FIG. Thus, the cleaning port 15 can be opened. The cleaning port 15 is opened in the upper portion 11 of the peripheral wall 9 of the horizontal main pipe 8, and even if drainage itself remains in the horizontal main pipe 8, the drainage does not overflow, that is, the surroundings are submerged. Without this, it is possible to remove the accumulated eggshell C. The eggshell C can be removed by using suction of a vacuum hose VH inserted from the cleaning port 15 or by rolling the eggshell C using a hand or a scoop. In the cleaning using the vacuum hose VH, even if the cleaning port 15 is a small opening, the eggshell C deposited on the lower portion 12 of the horizontal main pipe 8 can be easily sucked and removed (FIG. 8). See B).

  After the removal of the eggshell C, the outer peripheral edge 21 a of the lid 21 is positioned using the positioning mark 19 and brought into contact with the peripheral edge 14 of the cleaning port 15, and the cleaning port 15 is closed by the lid 21. In this state, using the nut 30, the screw 29 is tightened, the clamp 25 as the fastening means 24 is tightened, and the lid 21 is pressed against the outer peripheral surface 10 side of the horizontal main pipe 8. Even if the lid 21 arranged with high accuracy can be properly closed and the drainage from each dwelling is gathered and passes through the horizontal main pipe 8 after that, the treatment tank 5 can be smoothly smoothed. Can lead to drainage. The cleaning port 15 is opened at the upper portion 11 of the peripheral wall 9 of the horizontal main pipe 8, and when the lid 21 is pressed toward the outer peripheral surface 10 (the peripheral edge 14 of the cleaning port 15) of the horizontal main pipe 8, Even by simply pressing the lid 21 downward, the outer peripheral edge 21a of the lid 21 can be easily pressed to the outer peripheral surface 10 side of the horizontal main pipe 8 that becomes the peripheral edge 14 of the cleaning port 15. Thus, the closed state of the cleaning port 15 can be stably secured.

  Therefore, in the cleaning port structure S for the horizontal main pipe of the embodiment, the dust C accumulated in the horizontal main pipe 8 up to the treatment tank 5 can be removed smoothly, and after the removal, the treatment tank 5 can be smoothly removed. Can lead to drainage.

  In the embodiment, the case where the cleaning port 15 is arranged in the portion 11a immediately above the center O of the horizontal main pipe 8 in the cross section perpendicular to the axis of the horizontal main pipe 8 is shown, but the drainage overflows from the cleaning port 15 at the time of opening. If the entire area of the cleaning port 15 is disposed in the upper part 11 above the center O of the horizontal main pipe 8 in the cross section perpendicular to the axis of the horizontal main pipe 8 so that it does not come out, the cleaning port 15 is connected to the horizontal main pipe 8. In the cross-section perpendicular to the axis, it may be disposed at a position that is shifted in the circumferential direction CD from the directly upper portion 11a and that is obliquely upward from the center O.

  In the horizontal main pipe cleaning port structure S of the embodiment, the positioning mark 19 is attached to the upper portion 11 of the existing horizontal main tube 8 as a configuration in which the cleaning port 15 is formed in the existing horizontal main tube 8. The pattern paper sheet 17 is provided with a perforation mark 18 for defining a perforation position when the cleaning port 15 is perforated in the existing horizontal main pipe 8. Yes.

  That is, in such a configuration, when the cleaning port 15 is formed in the existing horizontal main pipe 8, first, as shown in FIG. 7A, a sticking mark 32 is attached to the laying site 13 of the horizontal main pipe 8, and FIG. As shown in B, the paper pattern sheet 17 is stuck to the horizontal main pipe 8 while aligning the sticking marks 17b and 32 with each other. Next, as shown in FIGS. 7C and 7D, the horizontal main pipe 8 is perforated with the cleaning mark 15 in a state where the positioning mark 19 is left with the perforation mark 18 of the pattern paper sheet 17 as a reference. If formed, it is possible to easily provide the cleaning port 15 and the positioning mark 19 when the lid body 21 is arranged with respect to the existing horizontal main pipe 8.

  And in the laying method of the cleaning port structure S as described above, the guide for the drilling position when the cleaning port 15 is formed in the horizontal main pipe 8 and the lid when the opened cleaning port 15 is closed with the lid 21. Positioning 21 can be easily performed using a single sheet of paper sheet 17, and the cleaning port structure S for the horizontal main pipe can be laid on the existing horizontal main pipe 8 with reduced manufacturing costs and man-hours. it can.

  Further, in the horizontal main pipe cleaning port structure and its laying method as described above, the cleaning port 15 capable of removing dust by using the pattern sheet 17 is provided at a place where the eggshell C is easily deposited on the existing horizontal main pipe 8 (for example, In the vicinity of the horizontal bend portion), the eggshell C can be easily prevented from flowing into the processing tank 5 and the horizontal main pipe 8 from being clogged in the existing apartment house 1. .

  Furthermore, in the horizontal main pipe cleaning port structure and the laying method as described above, the paper pattern sheet 17 is adhered to the upper portion 11 of the horizontal main pipe 8 where the cleaning port 15 is provided, and the pattern for punching the paper pattern sheet 17 is formed. Since the cleaning port 15 is opened at the upper part 11 of the horizontal main pipe 8 with reference to 18, drainage from the cleaning port 15 being drilled does not flow unless a very large amount of drainage flows through the horizontal main pipe 8 during drilling. It does not overflow, and it is also possible to lay the cleaning structure S in the high-rise apartment house 1 or the like without shutting off the water.

  In the embodiment, the fastening means 24 is arranged along the circumferential direction CD of the horizontal main pipe 8, is brought into contact with the outer peripheral surface 10 of the horizontal main pipe 8 together with the lid body 21, and the inner peripheral surface can be reduced in diameter. The clamp 25 includes a pair of half-cylinder cylindrical gripping rods 27 and 28 connected to each other by hinges 26, and the pair of gripping rods 27, 28, the open ends 27a and 28a side apart from the hinge 26 are fixed to each other with screws 29, and the inner peripheral side is reduced in diameter.

  Therefore, in the embodiment, each hinge clamp 25 is screwed using a nut 30 so that the open ends 27a, 28a side of the pair of gripping rods 27, 28 are brought into contact with each other with the spacer 31 in between. 29, the pressure contact force on the peripheral edge 14 of the cleaning port 15 at the outer peripheral edge 21a of the lid body 21 due to the reduced diameter can be made uniform at each arranged portion (near the front and rear ends of the lid body 21). As a result, the lid body 21 fastened to each hinge clamp 25 can exhibit stable watertight performance and close the cleaning port 15.

  In the embodiment, when the screw 29 is fixed, the open ends 27a and 28a side of the pair of gripping rods 27 and 28 are brought into contact with each other with the spacer 31 in between. However, the spacer 31 is interposed. Alternatively, the screws 29 may be fixed so that the open ends 27a and 28a are directly applied to each other.

  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 the 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.

  Furthermore, in the embodiment, the positioning mark 19 that defines the closing position of the lid 21 is formed from the outer peripheral edge 17a of the pattern paper sheet 17, but in addition, symbols and lines are formed on the surface side of the pattern paper sheet 17 by printing or the like. You may provide the positioning mark 19 by a figure etc. FIG.

  Of course, without using the paper pattern sheet 17, the existing horizontal main pipe 8 may be formed by perforating the cleaning port 15. In this case, after the cleaning port 15 is formed or before the formation, A positioning mark 19 may be separately provided at a position that becomes the peripheral edge 14 of the cleaning port 15 so that the lid 21 can be accurately disposed at a position where the cleaning port 15 can be closed.

  Further, in the embodiment, the pattern sheet 17 itself is formed from a rubber-like elastic body without providing the seal rubber 22 on the lower surface 21b of the lid 21, and the cleaning opening in the lid 21 when closed by the pattern sheet 17 itself. You may comprise so that the watertight performance with respect to the periphery 14 of 15 can be exhibited.

5 ... treatment tank,
8 ... Horizontal pipe,
11 ... upper part,
14 ... Rim,
15 ... cleaning mouth,
17 ... pattern paper sheet,
18 ... Mark for drilling,
19 ... Marking for positioning,
21 ... the lid,
24 ... fastening means,
25 ... Clamp,
26 ... Hinge,
27, 28 ... gripping rod,
27a, 28a ... open ends,
29 ... Screw,
C ... eggshell,
S: Cleaning mouth structure.

Claims (4)

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 opens to the upper part of the peripheral wall 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 to the outer peripheral surface side of the horizontal main pipe in a state in which the outer circumferential edge of the lid is in contact with the circumferential edge of the cleaning port and the cleaning port is closed by the lid. When,
A positioning mark disposed on the periphery of the cleaning port to enable positioning of the outer periphery of the lid when the cleaning port is closed;
Configured with
The fastening means is tightened in a state where the outer peripheral edge of the lid body is abutted against the peripheral edge of the cleaning port while being positioned with reference to the positioning mark, and the cleaning port is closed by the lid body. the lid by pressing the outer peripheral surface side of the horizontal main pipe, a configuration in which the cleaning port Ru is closed Te,
As the configuration in which the cleaning port is formed in the existing horizontal main pipe,
The positioning mark is disposed on the pattern sheet to be attached to the existing horizontal main pipe,
The horizontal main pipe cleaning port structure characterized in that the pattern sheet is provided with a mark for drilling that defines a drilling position when the cleaning port is drilled in the existing horizontal main pipe. . A plurality of annular clamps arranged along the circumferential direction of the horizontal main pipe, the fastening means being brought into contact with the outer peripheral surface side of the horizontal main pipe together with the lid, and capable of reducing the diameter of the inner peripheral surface , And
Each of the clamps includes a pair of halved cylindrical grips connected to each other by hinges, and the open ends of the pair of grips that are separated from the hinges are screwed together to reduce the inner peripheral side. The horizontal main pipe cleaning port structure according to claim 1 , wherein the horizontal main pipe cleaning mouth structure is constituted by a hinge clamp that is made to have a diameter. A method of laying a cleaning structure for a horizontal main pipe provided to remove dust accumulated inside the horizontal main pipe that guides drainage to a treatment tank,
The horizontal main pipe cleaning port structure is
A cleaning port that opens to the upper part of the peripheral wall 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 to the outer peripheral surface side of the horizontal main pipe in a state in which the outer circumferential edge of the lid is in contact with the circumferential edge of the cleaning port and the cleaning port is closed by the lid. When,
A positioning mark disposed on the periphery of the cleaning port and capable of positioning the outer periphery of the lid when the cleaning port is closed;
Configured with
The fastening means is tightened in a state where the outer peripheral edge of the lid body is abutted against the peripheral edge of the cleaning port while being positioned with reference to the positioning mark, and the cleaning port is closed by the lid body. By pressing the lid against the outer peripheral surface side of the horizontal main pipe, the cleaning port is closed,
The cleaning port is configured to be formed in the existing horizontal main pipe,
The positioning mark is disposed on the pattern sheet to be attached to the existing horizontal main pipe,
The pattern sheet is provided with a mark for perforation that defines a perforation position when the cleaning port is perforated in the existing horizontal main pipe,
When forming the cleaning port in the horizontal main pipe, the paper pattern sheet is adhered to the horizontal main pipe, and then the horizontal mark is left in the state where the positioning mark is left on the basis of the mark for punching the paper pattern sheet. A method for laying a cleaning structure for a horizontal main pipe, wherein a hole is formed in the main pipe to form the cleaning port. A plurality of annular clamps arranged along the circumferential direction of the horizontal main pipe, the fastening means being brought into contact with the outer peripheral surface side of the horizontal main pipe together with the lid, and capable of reducing the diameter of the inner peripheral surface , And
Each of the clamps includes a pair of halved cylindrical grips connected to each other by hinges, and the open ends of the pair of grips that are separated from the hinges are screwed together to reduce the inner peripheral side. The laying method of the cleaning structure for a horizontal main pipe according to claim 3 , wherein the laying structure is constituted by a hinge clamp to be diametrical.

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