JPH0624465Y2 - Drainage muffle fitting - Google Patents

Description

[Detailed description of the device] [Industrial field of application] The present invention is used for drainage of solids such as vegetable scraps and dust mixed with sewage, especially for drainage basin for sedimentation and separation of solids. Related to joints.

[Conventional technology]

The above-mentioned drainage trough intervening in the middle of the domestic miscellaneous drainage passage,
The joint is connected to the end opening of the waste water introducing pipe connected to the main body of the drainage basin, and the end of the joint is immersed in the waste water accumulated in the main body of the drainage basin. Then, the sewage flows through the sewage introduction pipe and the joint and drains into the main body, and is drained.When the sewage in the main body exceeds a certain level, the sewage is drained so that it flows out to the sewage outlet pipe connected to the main body. Has become.

The state of use of the conventional joint used for such a drainage basin is shown in FIGS. 7 and 8.

The joint 1 shown in FIG. 7 is composed of an elbow 2 and a straight short pipe 3 connected to the elbow 2. As shown in the same figure, the elbow 2 is attached to the end portion 5 of the waste water introducing pipe 4 connected to the main body A for drainage.
It is used by externally fitting the end 6 of the pipe and immersing the tip of the short pipe 3 in the water. When cleaning the inside of the main body A for drainage, the end 6 of the elbow 2 is connected to the end of the waste water introducing pipe 4. It is removed by pulling out from 5.

The joint 1 shown in FIG. 8 is composed of a curved pipe, and the end portion 7 thereof is inserted into the end opening 8 of the waste water introducing pipe 4 for use, while the interior of the drainage main body A is cleaned as described above. The end 7 is removed by pulling out the end 7 from the end opening 8 of the dirty water introducing pipe 4.

In addition, in FIG. 7 and FIG. 8, 9 is a wastewater discharge pipe,
Reference numerals 10 and 11 denote sealing materials.

[Problems to be solved by the device]

By the way, when cleaning the inside of the main body of the drainage basin, if there is a protrusion on the body of the drainage basin, it is a hindrance to the cleaning. This is also why the joint 1 is removed for cleaning.

On the other hand, the joint 1 of FIG. 7 is of a type in which the end portion 6 of the elbow 2 is externally fitted to the end portion of the sewage introduction pipe 4, and therefore the sewage introduction pipe must be secured sufficiently. There is a concern that the joint 1 may fall out due to the impact when the dirty water flowing in from 4 collides with the corner portion of the joint 1. In order to secure the insertion allowance without such a worry, if the nominal diameter of the sewage introduction pipe 4 is about 75 mm, the drainage width H of the sewage introduction pipe 4 into the inside of the main body A for drainage is made longer than 4 cm. I need to put it. However, the longer the width H of the sewage introduction pipe 4 is extended, the end 5 of the sewage introduction pipe 4 is drained even if the joint 1 is removed during cleaning, and the end of the sewage introduction pipe 4 sticks out into the main body A for a long time to become a hindrance for cleaning. There is a problem.

Since the joint 1 of FIG. 8 is of a type in which the end 7 of the joint 1 is inserted into the end opening 8 of the sewage introduction pipe 4 in an internal fitting manner, even if the width H of the sewage introduction pipe 4 is short, it is an extreme case. Sewage introduction pipe 4
It is possible to secure sufficient insertion allowance even if it does not project inside the main body A at all. Therefore, it is possible to secure an insertion allowance that does not cause the joint 1 to fall off as described in FIG. 7 without increasing the above-mentioned width H, and by doing so, when the joint 1 is removed during cleaning, the sewage introduction Tube 4 does not interfere with cleaning. But fitting 1
Since the end portion 7 of the stub protrudes into the internal passage of the sewage introduction pipe 4 by the thickness thereof to form a step, the solid content mixed in the sewage tends to be clogged in the step and the smooth flow of the sewage is likely to be obstructed. There is a problem.

The present invention has been made in view of the above problems, and it is possible to secure a sufficient insertion margin without extending the width of the sewage introduction pipe to the inside of the main body of the drainage pipe. An object of the present invention is to provide a joint that does not cause a step that would clog solid components mixed in dirty water in a passage.

[Means for Solving the Problems]

The drainage muffler fitting of the present invention is composed of an insertion pipe part that is internally fitted to the end opening of the wastewater introduction pipe connected to the drainage muffler body, and a wastewater inflow pipe part that communicates with this insertion pipe part. The insertion pipe portion is characterized in that the lower portion of the pipe wall is cut off. The plug-in pipe part and the sewage inflow pipe part may be integrated or separated.

[Operation] The joint is connected to the wastewater introducing pipe by inserting the insertion pipe portion into the end opening of the wastewater introducing pipe so as to be used. Further, since the lower portion of the pipe wall of the plug-in pipe portion is cut off, the internal passage of the sewage introduction pipe is prevented from forming a step which is clogged with the solid content mixed in the sewage.

〔Example〕

FIG. 1 is a perspective view of a joint 1 according to an embodiment of the present invention.
The joint 1 includes an insertion pipe portion 12 and a wastewater inflow pipe portion 13. The lower portion of the pipe wall of the insertion pipe portion 12 is cut off, and slit-shaped notches 14 are formed at a plurality of positions on the pipe wall. Reference numeral 15 indicates a cutout portion. The sewage inflow pipe portion 13 is formed in an elbow shape so that the sewage can be turned downward. The above-mentioned insertion pipe part 12 and sewage inflow pipe part 1
3 is an integral part of synthetic resin, the insertion pipe part 12 is projected from the starting end part of the sewage inflow pipe part 13, and an arcuate groove 16 is formed between the two, and the above-mentioned lacking The groove 1 is provided on the inner surface of the wastewater inflow pipe portion 13 corresponding to the portion 15.
6 is formed with a stepped portion 17 which is continuous. The starting end wall portion 18 of the dirty water inflow pipe portion 13 corresponds to the groove wall portion of the groove 16 and the protruding portion from the stepped portion 17.

2 is a cross-sectional view showing the usage state of the joint 1, FIG. 3 is a cross-sectional view of an essential part of FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV of FIG.

As shown in FIG. 3, the joint 1 drains the insertion pipe portion 12 into the end opening 8 of the sewage introduction pipe 4 connected to the main body A, and the end portion of the sewage introduction pipe 4 is inserted. It is connected to the sewage introduction pipe 4 by externally fitting the starting end wall portion 18 of the sewage inflow pipe 13 at the end so as to fit in the groove 16 and abut against the stepped portion 17, and is used in that state. Be served. Therefore, the deficient portion of the joint 1 is the wastewater introduction pipe
The end portion 5 and the stepped portion 17 of the joint 1 are butted and connected in a state of being flush with each other. If necessary, a straight short pipe may be connected to the sewage introduction pipe 13 to be buried in water.

When cleaning the inside of the main body A for drainage, the insertion pipe portion 12 is pulled out from the end portion 5 of the dirty water introduction pipe 4 to remove the joint 1.

In the joint 1, if the outer diameter of the insertion pipe portion 12 is the same as or substantially the same as the diameter of the sewage introduction pipe 4, and the length is made long, a sufficiently long insertion margin for the sewage introduction pipe 4 is obtained. A large connection strength is secured. Therefore, even if the width H of the end portion 5 of the sewage introduction pipe 4 into the main body A for drainage is shortened, the joint 1 will be damaged by the impact when the sewage flowing from the sewage introduction pipe 4 collides with the joint 1. It does not fall out. Nevertheless, when the joint 1 is removed, the above-mentioned width H of the sewage introduction pipe 4 is short, so that the end 5 of the sewage introduction pipe 4 does not interfere with the cleaning.

Moreover, since the insertion pipe portion 12 is inserted into the end portion 5 of the waste water introduction pipe 4 by utilizing the notch 14, the insertion is facilitated. On the other hand, since the joint 1 is likely to come off due to collision of dirty water or the like, the notch 14 'may be eliminated to enhance the connection strength.
Further, if the diameter of the tip of the insertion pipe portion 12 is made larger than the diameter of the end portion 5 of the wastewater introduction pipe 4, the insertion pipe portion 12 is inserted in a reduced state, so that the insertion pipe portion 12 is restored by its restoring force. It is pressed against the inner surface of the and the connection strength is further increased. Further, in this embodiment, the insertion pipe portion 12 is fitted in the waste water introduction pipe 4 and the starting end wall portion 18 of the waste water inflow pipe portion 13 is provided.
Is externally fitted to the end of the dirty water introducing pipe 4, so that the groove 1
If the groove width of 6 is set to be the same or substantially the same as the wall thickness of the end portion 5 of the sewage introduction pipe 4, the end portion 5 of the sewage introduction pipe 4 is sandwiched by the insertion pipe portion 12 and the start end wall portion 18. And a sufficiently large connection strength is exhibited. However, if the end of the sewage introduction pipe 4 does not project into the inside of the main body A for drainage, the end cannot be fitted into the groove 16, but the insertion pipe portion 12 fits inside the sewage introduction pipe 4 as described above. Since it is inserted in a circular shape, the connection strength is maintained sufficiently and there is no concern that the joint 1 will fall out.

On the other hand, the solid content mixed in the sewage flowing in the internal space of the sewage introduction pipe 4 is discharged from the joint 1 through the notch 15 of the above-mentioned insertion pipe 12 which is flush with the sewage introduction pipe 4. Flows smoothly into A. Further, since the start end wall portion 18 covers the abutting portion of the end surface of the insertion pipe portion 12, the bottom surface of the groove 16 and the stepped portion 17, water leakage and odor intrusion from the abutting portion are prevented. In addition,
Even if the thickness of the step portion 17 of the joint 1 is thin or eliminated, the solid content in the wastewater falls and smoothly flows down.
The thickness of 7 may be set to be equal to or less than the thickness of the dirty water introducing pipe 4.
In addition, the insertion pipe portion 12 and the waste water introduction pipe 4 other than the removal portion 15
There is a step, but when the solid content flows through the step, the amount of drainage is large and the flow velocity is high, so it does not become blocked.

Here, when the nominal diameter of the sewage introduction pipe 4 is 75 mm, the insertion allowance of the insertion pipe portion 12 is 4 to 10 cm, and the cutout portion 1 shown in FIG.
If the opening angle θ of No. 5 is set to 60 to 150 degrees, the connection strength that can withstand actual use is exhibited and the solid content does not clog, so the above range is preferable. If the insertion margin is too short or the opening angle θ is too small, the connection strength may be too small. Further, it is useless to make the insertion margin too large, and if the opening angle θ is too small, a step is formed on the side of the bottom of the internal passage of the dirty water introducing pipe 4, and the solid content is likely to be clogged in the step.

FIG. 5 shows a usage state of the joint 1 according to the modified example.
In the joint 1 shown in the figure, a collar portion 19 is formed at the starting end portion of the waste water inflow pipe portion 13, and the insertion pipe portion 12 is integrally projected from the inner peripheral portion of the collar portion 19. Further, in the state where the insertion pipe portion 12 is inserted into the end portion 5 of the dirty water introduction pipe 4, the removal portion 1
5, the inner surfaces of the sewage introduction pipe 4 and the sewage inflow pipe portion 13 are smoothly continuous with each other. When cleaning the main body A,
The insertion pipe part 12 is pulled out from the end part 5. Reference numeral 20 denotes a rubber packing, which is covered with the collar portion 19 and covers the end face of the sewage introduction pipe 4 and the abutting portion of the sewage inflow pipe portion 13, and the elasticity thereof makes the end portion of the sewage introduction pipe 4 elastic. I'm at a loss. The rubber packing 20 serves to improve the connection strength and prevent leakage of water and odor. The rubber packing 20 may be interposed between the front surface of the collar portion 19 and the short surface of the end portion 13 of the dirty water introducing pipe 4. In this example, the action and effect are similar to those of the joint 1 and the drainage pipe described in FIGS. 2 and 3 except that the notch is not formed in the insertion pipe portion 12 of the joint 1.

FIG. 6 shows a usage state of the joint 1 according to another modification. In this example, the sewage inflow pipe portion 13 of the joint 1 is formed in a straight shape, and the bottom wall thereof, that is, the arc-shaped bottom portion 21 corresponding to the cutout portion 15 is expanded by the thickness of the sewage introduction pipe 4. The bottom surface of the end portion 5 of the introduction pipe 4 and the bottom surface of the sewage introduction pipe 13 are flush with each other. In this joint 1, an insertion pipe portion 12 having a cutout portion 15 is inserted into the end portion 5 of the sewage introduction pipe 4 in an internal fitting manner, and the bottom portion 21 of the sewage introduction pipe 13 is brought into contact with the end portion 15 to prevent leakage of water or odor. Intrusion is prevented. In the figure, a publicly known elbow 22 is fitted on the sewage inflow portion 13 to turn the sewage downward. Of course, when cleaning the main body 1 for drainage, the insertion pipe portion 12 is pulled out to remove the joint 1. Other configurations and operational effects are the same as those of the joint 1 and the drainage drain described in FIGS. 2 and 3. Note that the elbow 22 is not always necessary, and the joint 1 may be connected to extend the pipe line so that the pipe can smoothly flow down to, for example, a garbage basket or a straight short pipe can be connected. Moreover, a packing may be interposed between the dirty water introducing pipe 13 and the odor to be surely prevented.

[Effect of device]

The drainage fitting of the present invention is a type in which the insertion pipe part is inserted into the end opening of the sewage introduction pipe so that it does not increase the width of the sewage introduction pipe. It is possible to secure a sufficient insertion allowance even if the introduction pipe does not protrude into the body. Therefore, even if the above-mentioned width is shortened, it is possible to prevent the wastewater from falling off due to collision, and the wastewater introduction pipe will drain when the joint is removed during cleaning. The situation of sticking out for a long time and obstructing cleaning is avoided.

Further, since the lower portion of the pipe wall of the above-mentioned insertion pipe part is cut off, even if it is used by inserting it into the end of the sewage introduction pipe, the internal passage of the sewage introduction pipe will be clogged with the solid content mixed in the sewage. There is no such a step, and the sewage flows smoothly.

[Brief description of drawings]

FIG. 1 is a perspective view of a joint according to an embodiment of the present invention, FIG. 2 is a sectional view showing a state of use of the joint, FIG. 3 is a sectional view of an essential part of FIG. 2, and FIG. 4 is IV of FIG. -IV is a cross-sectional view taken along line IV, FIG. 5 is a cross-sectional view showing the usage of the joint according to the modification, FIG. 6 is a cross-sectional view showing the usage of the joint according to the other modification, and FIGS. 7 and 8 are It is sectional drawing which shows the use condition of a prior art example. A ... Drainage main body, 1 ... Fitting, 4 ... Sewage introduction pipe,
5 ... end of sewage introduction pipe, 8 ... end opening of sewage introduction pipe, 12 ... insertion pipe part, 13 ... sewage inflow pipe part, 15
…… The removal section.

Claims (1)

[Scope of utility model registration request] 1. A sewage inflow pipe part connected to the end opening of a sewage introduction pipe connected to a main body of a drainage pipe, the sewage inflow pipe part communicating with the insertion pipe part, A joint for drainage, characterized in that the lower part of the pipe wall is cut off.