JP6530872B1 - Building drain cleaning system and drain cleaning method - Google Patents

Abstract

An object of the present invention is to make it possible to shorten a lead-in hose used by being drawn into a dwelling unit, and also to improve the workability of work and to reduce the labor. A fixed pipe 10 is disposed in a pipe space PS which penetrates a building T in the vertical direction. The lower end portion of the fixed pipe 10 is a pump connection portion 11, and a pump PW for pumping the cleaning liquid is connected. The hose connection part 14 is formed in the fixed piping 10 in each floor. The suction hose 20 is connected to the hose connection portion 14 located on the floor to be cleaned, and the drainage pipe in the dwelling unit (for example, J1 to J6 in FIG. 2) is cleaned by the cleaning liquid sprayed from the suction hose Ru. [Selected figure] Figure 1

Description

  The present invention relates to a drainage pipe cleaning system of a building and a drainage pipe cleaning method.

  In multi-dwelling units such as apartments that have a living floor across multiple floors, drainage from the water area such as a washroom, kitchen, bathroom, washing machine receiver, etc. in each dwelling unit is a horizontal drainage pipe and a vertical drainage pipe. It is discharged to the outside through Patent Document 1 discloses that a horizontal drainage pipe of a building is cleaned with cleaning water injected from a high pressure cleaning water injection nozzle whose vertical position can be adjusted.

  In order to prevent or eliminate the clogging of the drainage pipe connected to the drainage port in the water place in the dwelling unit, the cleaning is performed periodically. At the time of cleaning, a vehicle equipped with a pump for supplying a high-pressure cleaning solution is located near the building, and a lead-in hose connected to the pump is drawn into the interior from the entrance of each dwelling unit. The tip of the pull-in hose pulled into the dwelling unit is inserted to a predetermined depth into the drain of a water place such as a washroom, and operates the hand side on-off valve equipped on the pull-in hose. It is carried out by appropriately injecting the high-pressure cleaning fluid from the pump into the drainage pipe. In addition, such cleaning work is usually started from the lower floor and is often performed to the upper floor sequentially.

Patent No. 5374633 gazette

  By the way, recently, a building is made high and a residence floor may be made into the 10th floor or more, for example, and 30 floor or more in some cases. In this case, it is necessary to extend the drawing hose from the height near the ground to the living floor on the top floor. This requires a very long lead-in hose to be used.

  In addition to this, the handling of the extended lead-in hose is inefficient and laboriously burdened. That is, the drawing hose is routed from the ground near the ground to the common corridor from the emergency exit of each floor, for example, from the vicinity of the ground through the emergency stairs, and then pulled into the entrance of the dwelling unit. Since it is necessary to greatly change the arrangement state of the long lead-in hoses across the floors, it becomes a problem in terms of workability and labor. In particular, if the lead-in hose is extremely long, the lead-in hose may be added on the way, but in this case, much work is required for the addition work.

  The present invention has been made in consideration of the above circumstances, and a first object of the present invention is a construction of a building in which a lead-in hose can be shortened and work efficiency can be improved and labor can be reduced. It is in providing a drainage pipe cleaning system. A second object of the present invention is to provide a method of cleaning a drainage pipe using the drainage pipe cleaning system of this building.

In order to achieve the first object, the following solution is adopted in the cleaning system according to the present invention. That is, as described in claim 1,
A drainage pipe cleaning system for a building having a multi-story living floor comprising multiple dwelling units, comprising:
Fixed piping for supplying the cleaning solution is vertically extended and disposed across the multi-story floor constituting the living floor,
At a lower end portion of the fixed pipe, a pump connection portion to which a pump for supplying high-pressure cleaning liquid is connected is configured.
The fixed piping is configured with a hose connection portion to which a drawing hose to be drawn into the dwelling unit is connected at a position accessible from the common space of the building for each floor constituting the living floor,
Each of said Each hose connections, on-off valve is provided, et al is,
The fixed piping extends vertically through a pipe space accessible from a common corridor on each floor,
The hose connection is located in the pipe space in which the fixed pipe is arranged,
The pipe space in which the fixed piping is disposed is a pipe space located on the side of the entrance of each dwelling unit.
It is done like that.

  According to the solution method described above, in the state where the lead-in hose is connected to the hose connection portion installed on the floor where the dwelling unit to be cleaned exists, the pump connection where the high-pressure cleaning liquid is at the lower end portion By supplying from the part, the high-pressure cleaning fluid is supplied from the fixed piping to the drawing hose through the hose connection. Accordingly, the pull-in hose extending from the hose connection can be made sufficiently short to be drawn into the plurality of dwelling units installed per floor.

In addition, since the drawing hose can be handled in a short unit, it is possible to improve the workability and to reduce the labor, and in particular, it is preferable in terms of facilitating the handling of the drawing hose when changing the floor to be cleaned. . Furthermore, since the hose connection portion is installed at a position accessible from the common space, connection and disconnection of the lead-in hose to the hose connection portion can be easily performed while securing the safety of the worker. . Furthermore, since the hose connection is opened and closed by the on-off valve, the hose connection can be opened only when it is necessary for cleaning. In addition to the above, fixed piping and hose connections can be provided by effectively utilizing the pipe space accessible from the common corridor on each floor. Moreover, the pipe space located in the side of the entrance of each dwelling unit generally installed conventionally can be effectively utilized as arrangement | positioning space of fixed piping and a hose connection part.

Preferred embodiments based on the above solution are as described in claims 2 to 6 . That is,
The setting position of the pump connection portion is set to be a position where a vehicle equipped with the pump connected to the pump connection portion can enter or near the lower part of a building. 2 correspondence). In this case, the pump can be connected to the pump connection in a state where the vehicle on which the pump is mounted is located near the pump connection, so that high-pressure cleaning liquid can be easily supplied to the fixed piping. Is preferred.

The setting position of the pump connection portion is a low position near the ground in the outside of the building and in the vicinity of the outer wall of the building (corresponding to claim 3). In this case, it is preferable to exhibit the effect corresponding to claim 2 more sufficiently. Further, by installing a pump connection to the outside of the building, that Do a preferred even over to prevent the cleaning liquid from the vicinity of the pump connection is unintentionally flows through the building.

The number of the fixed pipes is set to one only (corresponding to claim 4 ). In this case, the number of fixed pipes can be minimized.

The setting position of the fixed pipe is a position at or near a position where the distance along the common corridor is shortest with respect to the entrances of the plurality of dwelling units on each floor in plan view.
It corresponds ( claim 5 correspondence). In this case, it is preferable to shorten the length of the lead-in hose sufficiently.

The number of fixed pipes is two or more.
The plurality of fixed pipes are dispersedly arranged so as to be positioned at or near positions dividing the paths connecting the entrances of the plurality of dwelling units along the common corridor in plan view.
( Claim 6 corresponds). In this case, it is preferable to sufficiently shorten the length of the lead-in hose while coping with the case where the number of dwelling units installed on one floor is large.

In order to achieve the second object, the following solution is adopted in the cleaning method of the present invention. That is, as described in claim 7 ,
In a building that has a multi-story residential floor consisting of multiple dwelling units, the fixed piping for supplying the cleaning fluid whose lower end is a pump connection is installed so as to extend vertically across the multi-story floor that constitutes the residential floor And a method of cleaning a drainage pipe of a building having a hose connection portion opened and closed by an on-off valve for each floor, which is a residence floor, of the fixed piping,
A first step of connecting a pump for cleaning fluid supply mounted on a vehicle to the pump connection portion;
A second step of connecting a proximal end portion of a lead-in hose having a proximal on-off valve to the hose connection on one floor to be cleaned;
After the first step and the second step, the on-off valve of the hose connection portion is opened and the pump is operated so that a high-pressure cleaning liquid is discharged from the pump through the fixed pipe and the hose connection portion. The third step of feeding the lead-in hose;
After the third step, by opening the hand side on-off valve in a state where the tip of the lead-in hose is inserted into the drain pipe in one dwelling unit, high-pressure cleaning liquid is drawn from the lead-in hose into the drain pipe. A fourth step of spraying and cleaning the drainage pipe;
A fifth step of sequentially cleaning the drain pipes in each dwelling unit on the one floor by changing the dwelling unit to be cleaned in the fourth step;
After the fifth step, a sixth step of closing the on-off valve of the hose connection on the one floor;
A has,
The drainage pipes are cleaned sequentially from the lower floor to the upper floor,
After the drainage pipe cleaning of the uppermost floor living floor is finished, the pump is disconnected from the pump connection, and the lead-in hose is disconnected from the hose connection at the uppermost floor. The method further comprises the step of discharging the residual cleaning liquid in the fixed pipe from the pump connection by opening the on-off valve of the hose connection on the floor.
It is done like that. According to the above solution, the cleaning method using the cleaning system according to the present invention is provided, and it is possible to prevent the cleaning liquid from remaining in the fixed pipe after the cleaning operation is completed.

Preferred embodiments based on the above solution method are as described in claim 8 and the following claims . That is,
The processing of the second step to the sixth step is performed each time the floor to be cleaned is changed, and the seventh step of cleaning the drainage pipe in each dwelling unit of the multi-story floor constituting the living floor is further included. It has done, (It corresponds to claim 8 ). In this case, drainage can be cleaned across the multi-story floor.

The processes from the second step to the sixth step are simultaneously performed in parallel for two or more residential floors (corresponding to claim 9 ). In this case, it is preferable to carry out the drainage pipe cleaning operation simultaneously on a plurality of floors and to wash more drainage pipes in a limited time zone.

  According to the present invention, the lead-in hose can be shortened, and the workability and labor can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The whole systematic diagram which briefly shows one Embodiment of this invention. The simplified top view which shows the example of a position setting of the hose connection part with respect to several dwelling units. The figure which shows an example of a pump connection part. The figure which shows an example of the pipe space vicinity in which a hose connection part is located. The figure which shows the example of a setting of the hose connection part in a pipe space. The figure which shows the detailed example of the connection part of a hose connection part and a drawing hose. The figure which shows the 2nd Embodiment of this invention, and shows the example of a position setting of the hose connection part with respect to several dwelling units.

  In FIG. 1, the building T is a high-rise apartment. In the building T, a first floor portion which is a lower floor (lower floor) is indicated by a symbol 1F. An entrance hall is set up on the first floor portion 1F, and a manager's room is set up beside the entrance hall. The second floor and higher floors (upper floors) are indicated by symbols 2F to NF (building T is N floors). Each floor from this second floor to the Nth floor is considered to be a living floor.

  In the building T, a pipe space PS extending in the vertical direction is formed. In the pipe space PS, as will be described later, a water pipe, a gas pipe, and a power line are vertically extended. The pipe space PS extends from the first floor to the N floor (upper floor), and the water pipe, the gas pipe, and the power line also extend from the first floor to the N floor (upper floor). In each dwell unit J, a water pipe, a gas pipe, and a power line branched in the pipe space PS are drawn.

  In FIG. 1, each dwell unit J in the building T is formed to extend in the lateral direction. The veranda 1 for the dwelling unit J is set on the right side in FIG. 1, and the shared corridor 2 is set on the left side. In addition, in FIG. 1, 1a and 2a are fences for fall prevention, respectively. Each floor has a plurality of dwelling units in the direction perpendicular to the paper surface of FIG. 1, and the arrangement of the plurality of dwelling units J on each floor is shown, for example, in FIG. In FIG. 2, the dwelling unit J is assumed to have six households J1 to J6. In FIG. 2, 3 is a front door, 4 is a pipe space PS which is set at the side of the front door and can be accessed from the common corridor 2. Further, in FIG. 2, EV is an elevator.

  In the pipe space PS, a fixed pipe 10 is disposed extending in the vertical direction. The fixed pipe 10 is for supplying a high-pressure cleaning liquid, and is constituted by a pipe having high pressure resistance. The fixed piping 10 also extends from the first floor to the N-th floor (upper floor). The fixed piping 10 is provided only for the building T, and as shown in FIG. 2, penetrates the pipe space PS of a specific one of the plurality of units J1 to J6 (in the embodiment, the unit J3). It is provided as. That is, on each floor, the fixed piping 10 is located only in the pipe space PS of the dwelling unit located above or below the dwelling unit J3.

  The lower end portion of the fixed pipe 10 is a pump connection portion 11. The pump connection portion 11 is set at a low position of the building T (in the embodiment, at a height position near the ground S), and is located inside the openable box 12 installed near the outer wall outside the building T ing. As shown in FIG. 3, the pump connection portion 11 is provided with an on-off valve 13 which is manually operated. The upper end of the fixed pipe 10 is closed.

  The vehicle V is made accessible to the pump connection portion 11, that is, the box 12. In FIG. 1, a state where the vehicle V is parked on the ground (ground) S of the building T near the pump connection 11 is shown. The vehicle V is equipped with a pump PW for supplying a cleaning solution and a tank PA for storing the cleaning solution. The pump PW is connected to the pump connection portion 11. In the embodiment, water (tap water) is used as the cleaning liquid. For example, water supplied to the tank PA from the building T side is supplied as the high pressure cleaning water by the pump PW and supplied to the fixed piping 10 .

  The hose connection part 14 is provided in the fixed piping 10 in each floor. The hose connection portion 14 is provided with an on-off valve described later. In the embodiment, the hose connection portion 14 is set to a position accessible from the position facing the shared corridor 2. The hose connection portion 14 will be described in detail later. In the embodiment, only one hose connection portion 14 is provided for each floor.

  The hose connection portion 14 is connected to a proximal end portion of a lead-in hose 20 formed of a pressure resistant hose shown by a broken line in FIGS. 1 and 2. The leading end side of the pull-in hose 20 connected to the hose connection portion 13 is drawn into the dwelling unit J through the entrance of the dwelling unit J, and the drainage pipe connected to the water station in the dwelling unit J is cleaned. The pull-in hose 20 is provided with a hand side on-off valve 21 manually operated at a position several meters before the tip thereof. The lead-in hose 20 is such that the tip end side of the hand side on-off valve 21 is inserted into the drainage pipe connected to it through the drainage port such as a washroom, and can easily pass through the bent portion or curved portion of the drainage pipe. It has sufficient flexibility.

  Next, the part relevant to the hose connection part 14 is demonstrated, referring FIGS. 4-6. First, in FIG. 4, a placement space 5 in which the outdoor unit 4 of the air conditioner is disposed is provided beside the door 3 of the entrance, and a pipe is provided on the opposite side to the door 3 across the placement space 5. Space PS is located. In FIG. 4, 6 is a door for opening and closing the pipe space PS.

  In FIG. 5, the door 6 of the pipe space PS is opened, and the state in the pipe space PS is shown. In FIG. 5, 7 is a water pipe, 8 is a gas pipe, and other power lines (not shown) are provided.

  Of the fixed piping 10 disposed in the pipe space PS, a portion corresponding to the hose connection portion 14 is located in the openable / closable box 15 (the hose connection portion 14 is housed in the box 15) ). An on-off valve 16 for opening and closing the hose connection portion 14 is also accommodated in the box 15.

  The connection of the lead-in hose 20 to the hose connection portion 14 is screw-type in the embodiment so as to provide a firm connection, but an appropriate connection type such as a one-touch type can be selected. Moreover, the on-off valve 16 is a lever type in the embodiment. The on-off valve 16 is in the closed state in the state shown in FIG. 6, and is opened in the state shown in FIG. 6 by, for example, rotating the control lever 16a approximately 90 degrees clockwise in FIG.

  Here, a preferable position setting of the hose connection portion 14 (that is, the fixed pipe 10) will be described in plan view with reference to FIG. First, in the hose connection portion 14, a position at or near the shortest distance from (the door 3 of) the entrances of the dwelling units J1 to J6 in the length along the common corridor 2 is selected. In FIG. 2, since the dwelling units J1 to J6 are located in series in the lateral direction, (the pipe space PS of the dwelling unit J3 located substantially at the center in the lateral direction) is selected as the setting position of the hose connection portion 14. Further, even if the hose connection portion 14 is positioned as (the pipe space PS of) the dwelling unit J4, the length of the necessary lead-in hose 14 is the same.

  In addition, in FIG. 2, the dwelling unit (the entrance door 3) located at the farthest distance from the hose connection portion 14 is a dwelling unit J6. In FIG. 2, when the position of the hose connection portion 14 is selected as (the pipe space PS of) the dwelling unit J1 or J6 located at the far end, the necessary length of the drawing hose 14 corresponds to the housing connection portion 14 of the dwelling unit J3. Or J4 (pipe space PS) needs to be longer than in the case of positioning.

  Next, the operation of high pressure cleaning of the drainage pipe will be described. In addition, washing | cleaning is sequentially performed, for example from the lowest floor of the residence floors to the top floor sequentially, and in the following description, it demonstrates paying attention to the dwelling unit of the second floor.

First, preparation for cleaning is performed as follows.
(1) The vehicle V is stopped in the vicinity of the pump connection portion 11, and the mounted pump PW is connected to the pump connection portion 11, and the washing water as the washing liquid is stored in the tank PA.
(2) The drawing hose 14 is conveyed to the second floor to be cleaned, and the proximal end of the drawing hose 14 is connected to the hose connection portion 14 of the second floor.
(3) With the proximal side on-off valve 21 of the suction hose 14 closed, the on-off valve 13 for the pump connection 11 is opened and only the on-off valve 16 for the hose connection 14 on the second floor is opened. Leave the valve state (all on-off valves for the hose connection 14 on the other floors are in the closed state).
(4) As soon as the preparation of the above (1) to (3) is completed, the pump PW is operated to supply high-pressure washing water into the fixed pipe 10. The high-pressure washing water reaches the drawing hose 20 connected to it via the hose connection part 14 located on the second floor, but since the hand side on-off valve 21 is closed, the drawing hose No wash water is sprayed from 20.
(5) Withdrawal hose 20 is drawn into the room through the entrance of any one of the dwelling units J1 to J6 on the second floor, and its leading end portion is drained, for example, through the drainage outlet of the washroom Insert in the tube. During the insertion or the removal, the proximal side on-off valve 21 is opened as appropriate, and high-pressure washing water is jetted from the tip of the lead-in hose 20. Thereby, the drainage pipe is cleaned. Similarly, the drainage pipes connected to the water area such as the bathroom, sink, washing machine receiver, etc. are cleaned to terminate the drainage pipe cleaning in one dwelling unit. The washing operation itself which is performed while appropriately opening such a hand side on-off valve 21 can be performed in the same manner as in the prior art.
(6) The cleaning work of (5) is also performed on another dwelling unit located on the second floor (usually, the cleaning work is sequentially performed from the dwelling unit at the end to the adjacent dwelling unit).
(7) When the cleaning of all the dwelling units on the second floor is finished, preparations for performing the cleaning on the dwelling units on the third floor are next performed. In this case, with the lead-in hose 20 inserted in the drainage pipe in advance, the on-off valve 16 for the hose connection portion 14 is closed while the proximal-side open / close valve 21 is opened to enter the lead-in hose 20. Drain the high pressure wash water into the drainage pipe. Thereafter, the connection of the lead-in hose 20 to the hose connection portion 14 is released. Thereafter, the suction hose 20 is transferred to the third floor (the shared corridor 2), connected to the hose connection portion 14 located on the third floor, and the on-off valve 16 is opened.
(8) When the preparation of the above (7) is completed, the same cleaning operation as described in the above (5) is sequentially performed for the dwelling units on the third floor. Thus, when the cleaning operation is performed while changing the floor and the cleaning of the dwelling unit on the top floor is completed, all the cleaning operations are completed.
(9) When the cleaning operation is completed, the following is performed as post-processing. First, the operation of the pump PW is stopped. Also, the suction hose 20 is disconnected from the hose connection 14 on the top floor and collected. Further, the on-off valve 13 for the pump connection portion 11 and the on-off valve 16 for the hose connection portion 14 on the top floor are opened to discharge residual cleaning water in the fixed pipe 10 from the pump connection portion 11.

  Here, the drawing hose 20 only needs to have a length that can be drawn into the dwelling unit J on the floor from the hose connection portion 14, and it may be short. That is, conventionally, assuming that the total length of the drawing hose 20 is L1 from the emergency exit connected to the emergency stairway into the dwelling unit J on that floor, the height from the first floor to the top floor is L2. , And at least a length of L1 + L2 is required. On the other hand, in the present invention, the length L2 is substantially unnecessary (the length L2 is replaced by the fixed pipe 10). Moreover, the position of the hose connection portion 14 is set at or near the shortest position with respect to (the door 3 of) the entrance of the dwelling unit (J1 to J6) on the floor in the length along the common corridor 2 As a result, the length of the necessary lead-in hose 20 can be shortened (the shortening of the length corresponding to the length L1).

  Conventionally, when the number of floors of the building T is large (for example, 20 floors or more), since the length L2 becomes considerably long, it is also possible to secure a desired length while adding a drawing hose in units of 10 m, for example. It has been done. However, in order to add the lead-in hose, it is necessary to perform connection work at two places after performing disconnection work at one place, which is extremely inefficient and requires much labor. However, in the present invention, the work of adding such a drawing hose is not necessary.

  Since the lead-in hose 20 is short (it also reduces the weight), one worker carries and transfers the lead-in hose 20 while moving the lead-in hose 14 across the floor. Alternatively, they can be mounted on a small transport carriage and transported, and can also be moved using an elevator. From this, the movement of the suction hose 20 along with the change of the floor to be cleaned is also excellent in workability.

  FIG. 7 shows a second embodiment of the present invention. The same components as those of the first embodiment are designated by the same reference numerals and their duplicate description will be omitted. In the building T2 (corresponding to T) in the present embodiment, the number and arrangement of dwelling units are different. That is, in FIG. 7 which is a plan view, the rectangular through hole 8 is formed at the center, and the dwelling unit is arranged along the three sides of the through hole 8. The dwelling unit has a total of 15 units of J11 to JJ25.

  The common corridor 2 is formed to surround the blow-through portion 8. In addition, only one fixed pipe 10 is used. Fixed piping 10 so that hose connection part 14 in each floor is located at an intermediate position between dwelling unit J11 on one end side and dwelling unit J25 on the multi-end side along dwelling unit 2 or a dwelling unit J18 (pipe space) near it. The position of is selected. A path from the hose connection portion 14 toward the dwelling unit J11 is indicated by a symbol α1. Moreover, the path | route from the hose connection part 14 to the dwelling unit J25 side is shown by code | symbol (alpha) 2.

  The pull-in hose 20 connected to the hose connection portion 14 is disposed along the path α1 for the dwelling units J11 to J18, and the dwelling units J11 to J18 can be cleaned. Moreover, about dwelling unit J19-J25, the hose 20 for drawing-in can be arrange | positioned along path | route (alpha) 2, and each dwelling unit J19-J25 can be wash | cleaned.

  In FIG. 7, the fixed piping 10 may be provided at two distant positions indicated by 印 and the hose connection portions 14 may be dispersedly disposed at two positions per floor. In this case, in order to shorten the length of the lead-in hose 20, it is preferable to dispose a ☆ mark (that is, the fixed pipe 10) at positions dividing the paths connecting the paths α and α2 at substantially equal intervals. It is.

  Since the number of dwelling units per floor is generally less than or equal to 10 in general, it is sufficient to provide only one fixed pipe 10. However, when the number of dwelling units per floor exceeds approximately 20, it is preferable to provide two or more fixed pipes. The fixed piping 10 can be installed in the pipe space PS together with a water pipe, a gas pipe and the like when building T is built. The fixed piping 10 can also be retrofitted to the existing building T (renovation of the building T).

Although the embodiment has been described above, the present invention is not limited to the embodiment, and appropriate modifications can be made within the scope of the claims. For example, the following cases are also included. .
(1) As the cleaning solution, besides using only water, it is possible to use an appropriate one which is conventionally used as a cleaning solution, such as one in which detergent or ozone is dissolved in water.
(2) A cleaning operation can be performed simultaneously on a plurality of floors. That is, for example, the drawing hose 20 is connected to the hose connection part 14 on the second floor, and the drawing hose 20 is also connected to the hose connection part 14 on the third floor, and washing is performed simultaneously on the second and third floors. Work can be done.
(3) A plurality of hose connections 14 can be formed on the same floor with respect to one fixed pipe 10. For example, as a hose connection portion 14 having a plurality of bifurcated connection portions such as two or three branches, using two or more lead-in hoses 20 at the same time, washing operations can be performed in parallel on the same floor. Can be done.
(4) The installation position of the fixed pipe 10 is not limited to the pipe space PS, and an appropriate position can be selected. For example, they can be arranged along the steps normally used (especially in the case of the lower floors where the building T has no elevator) or along the emergency steps. When the fixed piping 10 is disposed along the stairs (including the emergency stairs), it can be disposed near the upper end of the side wall of the stairs or along the ceiling from the viewpoint of appearance and the like. In this case, only the hose connection portion 14 installed at each floor can be set at a low position, for example, 1 m or less (the fixed pipe 10 is once diverted to the low position at the position of the hose connection portion 14).
(5) From the viewpoint of the structure of the building T, etc., the positional relationship between the fixed piping 10 and the hose connection portion 14 can be set to a considerably distant position (the hose connection portion 14 extends long from the fixed piping 10) Become). For example, while the fixed piping 10 is disposed outside the building T, the hose connection portion 14 can be located inside the building T (for example, a position along the common corridor) so as to be easily accessible from the common space.
(6) The pump connection part 11 can also be installed in the building T as long as it is at a low place of the building T. The on-off valve 13 for the pump connection portion 11 may not be provided. Of course, the object of the present invention is not limited to what is explicitly stated, but implicitly also includes providing what is substantially preferred or expressed as an advantage.

  The present invention is suitable for cleaning drainage pipes in high-rise apartments and the like.

T: building S: site V: vehicle PW: pump (for cleaning fluid pressure delivery)
PA: Tank (for cleaning solution storage)
J: Housing (Figure 1)
J1 to J6: Housing units (Figure 2)
J11 to J25: Units (Figure 7)
PS: Pipe space 1F-NF: Floor 3: Door (for entrance)
6: Door (for pipe space)
10: Fixed piping 11: Pump connection 12: Box (for pump connection)
13: On-off valve (for pump connection)
14: Hose connection 15: Box (for hose connection)
16: Open / close valve (for hose connection)
20: Pull-in hose 21: Hand side on-off valve

Claims (9)

A drainage pipe cleaning system for a building having a multi-story living floor comprising multiple dwelling units, comprising:
Fixed piping for supplying the cleaning solution is vertically extended and disposed across the multi-story floor constituting the living floor,
At a lower end portion of the fixed pipe, a pump connection portion to which a pump for supplying high-pressure cleaning liquid is connected is configured.
The fixed piping is configured with a hose connection portion to which a drawing hose to be drawn into the dwelling unit is connected at a position accessible from the common space of the building for each floor constituting the living floor,
Each of said Each hose connections, on-off valve is provided, et al is,
The fixed piping extends vertically through a pipe space accessible from a common corridor on each floor,
The hose connection is located in the pipe space in which the fixed pipe is arranged,
The pipe space in which the fixed piping is disposed is a pipe space located on the side of the entrance of each dwelling unit.
Building drainage pipe cleaning system. In claim 1,
The setting position of the pump connection portion is a position at which a vehicle equipped with the pump connected to the pump connection portion can enter at or near a lower part of the building. Drain pipe cleaning system. In claim 2,
The drainage pipe cleaning system for a building, wherein the setting position of the pump connection portion is a low position near the ground out of the building and near an outer wall of the building. In any one of claims 1 to 3 ,
The drainage pipe cleaning system for a building, wherein the number of the fixed piping is only one. In claim 4 ,
The setting position of the fixed pipe is a position at or near a position where the distance along the common corridor is shortest with respect to the entrances of the plurality of dwelling units on each floor in plan view.
Building drainage pipe cleaning system. In any one of claims 1 to 3 ,
The number of fixed pipes is two or more.
The plurality of fixed pipes are dispersedly arranged so as to be positioned at or near positions dividing the paths connecting the entrances of the plurality of dwelling units along the common corridor in plan view.
Building drainage pipe cleaning system. In a building that has a multi-story residential floor consisting of multiple dwelling units, the fixed piping for supplying the cleaning fluid whose lower end is a pump connection is installed so as to extend vertically across the multi-story floor that constitutes the residential floor And a method of cleaning a drainage pipe of a building having a hose connection portion opened and closed by an on-off valve for each floor, which is a residence floor, of the fixed piping,
A first step of connecting a pump for cleaning fluid supply mounted on a vehicle to the pump connection portion;
A second step of connecting a proximal end portion of a lead-in hose having a proximal on-off valve to the hose connection on one floor to be cleaned;
After the first step and the second step, the on-off valve of the hose connection portion is opened and the pump is operated so that a high-pressure cleaning liquid is discharged from the pump through the fixed pipe and the hose connection portion. The third step of feeding the lead-in hose;
After the third step, by opening the hand side on-off valve in a state where the tip of the lead-in hose is inserted into the drain pipe in one dwelling unit, high-pressure cleaning liquid is drawn from the lead-in hose into the drain pipe. A fourth step of spraying and cleaning the drainage pipe;
A fifth step of sequentially cleaning the drain pipes in each dwelling unit on the one floor by changing the dwelling unit to be cleaned in the fourth step;
After the fifth step, a sixth step of closing the on-off valve of the hose connection on the one floor;
A has,
The drainage pipes are cleaned sequentially from the lower floor to the upper floor,
After the drainage pipe cleaning of the uppermost floor living floor is finished, the pump is disconnected from the pump connection, and the lead-in hose is disconnected from the hose connection at the uppermost floor. The method further comprises the step of discharging the residual cleaning liquid in the fixed pipe from the pump connection by opening the on-off valve of the hose connection on the floor.
A method of cleaning a drain of a building characterized in that. In claim 7 ,
The processing of the second step to the sixth step is performed each time the floor to be cleaned is changed, and the seventh step of cleaning the drainage pipe in each dwelling unit of the multi-story floor constituting the living floor is further included. The method of cleaning the drainage pipes of a building that is characterized by In claim 7 or claim 8 ,
A method for cleaning a drainage pipe of a building, comprising simultaneously performing the processing from the second step to the sixth step on two or more living floors.

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