JP2004190474A - Wastewater trap structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wastewater trap structure capable of easily washing a drain pipe under a high pressure while avoiding any dead space made under a sink and also capable of washing the trap itself easily. <P>SOLUTION: A drain hole and a washing hole which can be opened and closed are provided in a main body in which a mesh cage can be housed, an S-shaped trap is connected to the drain hole, and the washing hole is connected to a part downstream at least below the bottom of the water seal of the washing hole and the S-shaped trap with a bypass pipe. Also, the drain hole is positioned on the rear surface at the depth side of the main body and the washing hole is provided on the bottom surface of the main body. In addition, the washing hole can be installed, if necessary, by branching it from a position directly below the drain hole. In addition, an inspection hole which can be opened and closed at the bottom of water seal of the S-shaped trap or a filter can be installed to the drain hole as required. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain trap under a sink, and more particularly to a structure capable of easily performing high-pressure washing of a drain pipe connected downstream of the drain trap.

  FIG. 5 shows a so-called belt wrap which is widely used as a drain trap for a home sink, and its structure is also known, for example, from Patent Documents 1 and 2 by the present applicant. In this belt wrap, a tubular main body 50 having a predetermined depth is attached to a sink of a sink, and a net basket 51 for capturing dust is accommodated in an upper portion of the tubular main body 50, and an attachment 52 is provided below the tubular basket 51. A riser 53 connected to a drainpipe (not shown) via the same is provided integrally, and a deodorant lid 54 is provided so as to cover the riser 53. The sealed space 55 formed by the rising pipe 53 and the deodorizing lid 54 functions as a trap for preventing backflow of odor and the like. In the figure, reference numeral 56 denotes, for example, a chrysanthemum-shaped palate attached to the sink drain port.

  In such a drain trap, the standard in the industry is to set the height (sealing depth) of the sealed space 55 to 50 mm or more in order to more reliably prevent the backflow of odor and the like.

  On the other hand, in recent years, attempts have been made to eliminate dead space under the sink and increase the storage efficiency of the sink cabinet. Therefore, conventionally, in addition to disposing the sink outlet at the back, as shown in FIG. 6, by setting the bulk of the net basket 57 low, the total height of the drain trap is maintained while the sealing depth is maintained at a constant length. Is smaller. This tendency is consistent with the objective of reducing the amount of garbage accumulated in order to reduce the amount of garbage in order to improve the efficiency of sewage treatment and reduce the amount of garbage in domestic effluents, as little as possible.

  Further, in this belt wrap, in order to be compatible with a system kitchen having a drawer under the feet, the drain pipe connecting portion 59 is bent 90 degrees from the riser pipe 58 to completely open the bottom of the sink. Has been adopted.

Japanese Utility Model Publication No. 55-21379 Japanese Utility Model Publication No. 55-140571

  Conventionally, as described above, in order to solve the contradictory problem of eliminating the dead space under the sink while securing the sealing depth to the industry standard value, a structure as shown in FIG. 6 is finally adopted. Has been reached.

  By the way, dirt such as oil cake adheres to the inner wall of the drainage pipe connected downstream of the drainage trap over time. The deposit causes clogging of the tube, emits an unpleasant odor, and serves as a breeding soil for various bacteria. If the trap is punctured, the room may be filled with an unpleasant odor and the germs may contaminate the sink. In the past, measures were taken to periodically remove the deposits from the drainage pipes using a commercially available cleaning agent.However, when the deposits have been left unattended for a long period of time, such as when sticking is severe, cleaning is performed from the injection nozzle. It has been practiced to spray the agent under high pressure to remove dirt from the inner wall. This high-pressure cleaning is performed by first removing the palate, the net basket, and the deodorizing lid from the sink, inserting the injection nozzle into the drain pipe through the riser pipe, and performing high-pressure injection.

  However, in the drain trap shown in FIG. 6, since the drain pipe connection portion 59 is bent at 90 degrees, the cleaning liquid jetted at a high pressure from the injection nozzle is depressurized and decelerated at the bent portion, and the drain pipe is effectively formed. There is a problem that cleaning cannot be performed. Of course, the injection nozzle cannot pass through the bent part. Further, if a drain pipe is to be connected to the drain pipe connecting portion 59 of the above structure, the trouble of piping in the wall on the downstream side is required. If the drain pipe connecting portion 59 of the trap is made vertical, these problems can be solved, but of course, the storage efficiency under the sink is sacrificed.

  On the other hand, in addition to the non-siphon type represented by the above-mentioned belt wrap, the drain trap is a siphon type in which a pipe is bent into an S-shape, a J-shape, a U-shape, and a water-sealing space is provided in the bent portion. is there. However, since the siphon trap also has a bent water sealing channel, the high-pressure jet is decompressed and decelerated in the used state as it is, so that the high-pressure cleaning of the drainage pipe is extremely difficult.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to disclose a drain trap structure that can easily perform high-pressure washing of a drain pipe while avoiding dead space below a sink. Another object is to provide a structure in which the trap itself can be easily cleaned.

  In order to achieve the above object, in the present invention, a drain port and an openable cleaning port are provided in a main body capable of storing a net basket, and a siphon-type trap such as an S-shaped or U-shaped port is connected to the drain port. Means was used in which the washing port and a part downstream of the trap were connected by a bypass pipe. According to this means, a drain pipe is connected to the downstream side of the trap, and the washing water is closed by a suitable means such as a cover which has been touched, so that the water in the sink is drained through the drain port and the S-shaped trap. Drained to At this time, the trap has a water-sealing portion to prevent backflow of odor and the like. Note that the trap sealing depth is preferably set to 50 mm or more. On the other hand, the lower end of the bypass pipe is connected to a portion downstream of the trap, at least downstream of the water sealing bottom. The cleaning port functions as an insertion port for the injection nozzle, and the cleaning liquid is directly injected into the drain pipe through the bypass pipe by inserting the injection nozzle therefrom.

  In addition, if a drain port is provided on the back side of the back side of the main body while a washing port is provided on the bottom surface of the main body, when an S-shaped trap is adopted as the trap, the S-shaped trap follows the back plate of the sink cabinet. Since the piping is arranged as described above, the storage space can be set sufficiently without increasing the water sealing depth while keeping the storage space in front of the cabinet. On the other hand, apart from this means, a means for branching the washing port from immediately below the drain port may be used. In this case, the formation position of the drain port is not particularly limited, but the washing port is provided through a connection pipe such as an elbow pipe or the like which is appropriately interposed between the trap and the drain port. According to this means, since the drain port and the cleaning port are close to each other, the bypass pipe can be connected to the downstream part of the trap without difficulty, and the bypass pipe can be piped in a more linear state. Make cleaning more effective. In addition, when the drainage port is provided on the rear side of the back side of the main body in this means, a larger storage space in front of the cabinet can be secured. In addition, since the cleaning port functions as the injection port of the injection nozzle as described above, when the cleaning port is provided immediately below the drain port, it should be noted that the cleaning nozzle is formed at a position where the injection nozzle can be easily inserted. is there.

  In addition, by providing the washing port on the back side of the bottom surface of the main body and providing the drain port on the bottom side of the main body so as to be located in front thereof, the bypass pipe is arranged in the dead space on the back side (backboard side) of the sink cabinet. Therefore, the storage efficiency in the cabinet can be improved. This means employs a U-shaped trap as a trap, and is particularly effective when the installation of the trap causes a dead space on the inner side of the cabinet.

  Furthermore, by providing an openable inspection port on the water sealing bottom of the trap, maintenance such as cleaning the inside of the trap can be easily performed through the inspection port. When an S-shaped trap is used as the trap, the S-shaped trap can be set to be shoulder-down, and a lower bent portion of the bent portion can be set as a water-sealing bottom.

  Furthermore, by providing a filter at the drain, dust that could not be collected by the net basket is captured, and clogging of the drain is reliably prevented.

  As described above, according to the present invention, since the high-pressure cleaning liquid bypass passage is provided from the main body to the drain pipe by the bypass pipe, the drain pipe can be washed at a higher pressure than before. Further, since the S-shaped trap is piped along the deep side of the sink, a large storage space can be secured in front of the sink even if the water sealing depth is set to a certain value or more. Further, by forming the bypass pipe by a flexible pipe such as a flexible pipe, the pipe can be piped without greatly bending the passage in a state where the storage space is not obstructed as much as possible. Become. Also, clogging of the tube can be reliably prevented by the filter, and the S-shaped trap can be firmly fixed particularly by the fixing hook.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1, 2, and 3 are a rear view, a side view, and a plan view of the entire drain trap structure according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a main body fixed to a sink outlet, 2 denotes a net basket for capturing dust housed in the main body 1, 3 denotes an S-shaped trap, and 4 denotes a bypass pipe.

  The main body 1 has a depth enough to accommodate the net basket 2, and the bottom surface 1a has a constant running water gradient. In addition, a drain port 1c is provided on the rear side rear surface 1b of the main body 1, and a cylindrical port 1d continuous with the drain port 1c is integrally formed. A cylindrical filter 5 is arranged in the cylindrical opening 1d so as to collect small dust that could not be captured by the net basket 2. The main body tube opening 1d and the S-shaped trap 3 are connected by an elbow pipe 6, and a lower end of the S-shaped trap 3 is connected to a drain pipe (not shown). In addition, 7 is a cap nut for pipe connection. Furthermore, a cleaning port 1e is formed in the center of the main body bottom surface 1a separately from the drain port 1c, and the cleaning port 1e is usually closed by a lid 8. The bypass pipe 4 is connected to the cleaning port 1e via an attachment 9 that can be appropriately removed.

  On the other hand, the S-shaped trap 3 has a structure in which a vertical portion 3a and an S-shaped sealing channel 3b are provided continuously, and auxiliary tubes 3c are integrally formed in the vertical portion 3a so as to protrude right and left. At the same time, a connection port 3d for connecting the lower end of the bypass pipe 4 is formed below the S-shaped sealing channel 3b. The auxiliary pipes 3c are connected to storage pockets of the detergent container provided in the sink as appropriate to drain the water stored in the pockets through the S-shaped trap 3. The auxiliary pipes 3c are closed at the beginning, and the drains are cut off at the end thereof, and then connected separately to the pockets by connecting pipes. Further, in the case of this embodiment, the S-shaped trap 3 is configured such that the S-shaped sealing channel 3b is inclined downwardly and can be opened and closed at the tip of the bent portion (water-sealing bottom) located below the bent portion. An inspection port 10 is provided. In addition, it is preferable to set the water sealing depth by the S-shaped water sealing channel 3b to 50 mm or more.

  Next, the operation and effect of the drain trap structure having the above configuration will be described. First, the mode of use of the trap structure is divided into normal use and use during cleaning. During normal use, by closing the bottom washing port 1e of the main body 1 with the lid 8 or the like, the sewage of the sink flows out to the drain pipe through the back drain port 1c, the elbow pipe 6, and the S-shaped trap 3. In addition, the S-shaped trap 3 exhibits a basic function of preventing backflow of odors and pests by storing water in the water sealing channel 3b. At this time, since the washing port 1e of the bypass pipe 4 is closed, odor and the like do not flow backward. Further, in this embodiment, since the drain port 1c for connecting the S-shaped trap 3 is formed on the back surface 1b on the back side of the main body, the S-shaped trap 3 can be piped along the back plate or the wall surface of the cabinet. A large storage space can be secured. Further, the net basket 2 can be made of a low bulk in accordance with the example of the prior art, so that the entire bulk (total height) of the main body 1 can be reduced, so that the water depth of the S-shaped trap 3 and the storage space under the sink are reduced. The function of securing both at the same time is performed. In addition, as described in the prior art, in order to provide a drawer-type storage structure below the sink, piping in the wall is not completely excluded from the present invention. Do not bend the connection with the drain pipe extremely. This is to make the high-pressure cleaning performed through the bypass pipe 4 effective.

  Subsequently, for use during cleaning, the lid 8 is removed, a cleaning port 1e formed in the bottom surface 1a of the main body is opened, and an injection nozzle for injecting a high-pressure cleaning liquid or the like from the cleaning port 1e is inserted. The degree of insertion depends on the structure of the injection nozzle, but it is preferable to insert the bypass deeper into the bypass pipe 4 using a flexible one. Then, when the cleaning is started, the cleaning liquid is injected at a high pressure through the bypass pipe 4 or directly to the drainage pipe, and the oil cake and the like attached to the inner wall of the drainage pipe can be removed. Here, in order to maintain the injection pressure of the cleaning liquid at a high pressure, it is preferable that the bypass pipe 4 is provided in a more linear state. However, even if the bypass pipe 4 is formed of a flexible pipe, it is difficult to connect the bypass pipe 4 to the S-shaped trap 3 linearly. It is preferable that the pipe be bent so as to be slightly bent. In order to eliminate such conflicting problems, in this embodiment, the main body side connection port (washing port 1e) of the bypass pipe 4 is provided on the bottom surface 1a of the main body 1, and the bypass pipe 4 is formed of a flexible pipe. The aspect is connected to a part of the downstream of the S-shaped trap 3 without being bent significantly, and the injection pressure can be maintained at a high pressure state. Further, if the S-shaped trap 3 is broken at the time of high-pressure washing, the S-shaped trap 3 can also function as a duct for exhaust, so that high-pressure injection can be made more reliable.

  Further, the use at the time of cleaning includes the mode of cleaning the S-shaped trap 3. In this case, the cap is removed from the inspection port 10 provided at the bottom of the sealed water to drain the sealed water, remove foreign substances, and remove the S-shaped trap. Maintenance such as cleaning (including high-pressure injection) in 3 can be performed.

  The above embodiment is an example of the present invention, and various changes can be made. The items include, for example, a change in the position of a drain port 1c and a washing port 1e with respect to the main body 1, a change in the position of a connection port 3d with respect to the S-shaped trap 3, a connection structure between the drain port 1c and the drain pipe and the S-shaped trap 3, and a connection with the bypass pipe 4. Changing the connection structure between the cleaning port 1e and the S-shaped trap 3, omitting or changing the structure of the inspection port 10 and the cylindrical filter 5, and selecting the material of the S-shaped trap 3 and the bypass pipe 4 are applicable.

  Here, in particular, the position change of the drain port 1c and the cleaning port 1e will be described. In the above embodiment, the drain port 1c and the cleaning port 1e are provided at the same time in the main body 1, but only the drain port 1c is provided in the main body 1. The cleaning port 1e may be provided immediately below the drain port 1c, for example, branched from a part of the upstream of the elbow pipe 6. That is, in the case of such a branched structure, the washing port 1e is omitted from the main body 1, and instead, the above-described high-pressure washing of the drain pipe can be performed by the washing port 1e branched from immediately below the drain port 1c. Furthermore, since the positions of the drain port 1c and the cleaning port 1e are closer to each other than in the above-described embodiment, it is possible to make the bend smaller when the bypass pipe 4 is piped downstream of the S-shaped trap 3. Therefore, the function of high-pressure cleaning is enhanced. Further, by changing the position of the washing port 1e, the piping position of the bypass pipe 4 can be retracted further to the inside of the cabinet, so that the front storage space of the cabinet is expanded. However, in this case, the position of the drain port 1c does not necessarily need to be on the rear side 1b of the main body. That is, if the injection nozzle can be easily inserted into the cleaning port 1e through the drain port 1c, the drain port 1c can be formed at another position such as the main body bottom surface 1a. When the position is changed, the washing port 1e should be closed with a lid or the like during normal use in order to prevent backflow of odor and the like.

  By the way, depending on the position of the sink or the trap, a dead space may be formed inside the sink cabinet. In other words, if the sink cabinet is deep and the sink is located closer to the cabinet than the back plate, if a trap is provided for the sink, the space between the back plate of the cabinet and the deep end of the sink is provided by the trap. Is dead space. Therefore, another embodiment of the present invention will be described with reference to FIG. 4 in order to eliminate such a dead space and increase the storage efficiency in the cabinet. That is, in this embodiment, the cleaning port 1e is provided on the back side (the cabinet back plate side) of the bottom surface of the main body 1, and is located in front of the cleaning port 1e, and the drain port is drained to the bottom surface of the main body 1 so as to be in a front-back relationship with the cleaning port 1e. The mouth 1c is provided. Here, a U-shaped trap 3 ′ is employed as a trap, and a portion downstream of the water sealing bottom and the washing port 1 e are connected by a bypass pipe 4. Therefore, in this embodiment, since the bypass pipe 4 is arranged in the dead space behind the trap in the cabinet, effective use in the cabinet is achieved.

Rear view of the drain trap structure according to one embodiment of the present invention Side view of a part of the drain trap structure (body side) cut away Top view of the drain trap structure Side view sectional view of a drain trap structure according to another embodiment of the present invention Sectional view showing a conventional drain trap structure Sectional view showing another conventional drain trap structure

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Main body 2 Basket 3 S trap 4 Bypass pipe

Claims (6)

A drain port is provided on a main body capable of storing a net basket and a washing port that can be opened and closed is provided. A siphon-type trap such as an S-shaped trap or a U-shaped trap is connected to the drain port. A drain trap structure characterized in that at least a part downstream of the sealed bottom is connected by a bypass pipe. The drain trap structure according to claim 1, wherein the drain port is provided on the back side of the back side of the main body, while the cleaning port is provided on the bottom surface of the main body. 2. The drain trap structure according to claim 1, wherein the cleaning port is provided by branching from immediately below the drain port. 2. The drain trap structure according to claim 1, wherein the washing port is provided on the back side of the bottom surface of the main body, and the drain port is provided on the bottom surface of the main body in front of the washing port. The drain trap structure according to claim 1, 2, 3, or 4, wherein an openable opening is provided on the water sealing bottom of the trap. The drain trap structure according to any one of claims 1 to 5, wherein a filter is provided at the drain port.

Images