JP3711192B2 - Drainage equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage device for discharging drainage from a water tank such as a kitchen sink and a basin to the outside, and more particularly to a drainage device provided with a drain pipe trap.
[0002]
[Prior art]
Conventionally, a device as shown in FIG. 16 is used as a drainage device for discharging drainage from a water tank such as a kitchen sink or a wash basin to the outside.
In the figure, reference numeral 200 denotes a water tank such as a kitchen sink or a wash basin. A drainage device 202 having a drain pipe trap 204 and a drain main pipe 206 is connected to the drainage port, and drainage from the water tank 200 passes through the drainage device 202. It is designed to be discharged outside.
[0003]
The drain pipe trap 202 includes a falling pipe part 208, a bottom part 210 that follows this, a rising pipe part 212 that rises upward from the bottom part 210, and a connecting pipe part 214 that follows this, and the connecting pipe part 214. The drain pipe trap 204 and the drain main pipe 206 are in communication with each other.
[0004]
Thus, the drain pipe trap 204 holds sealed water at the lower part of the rising pipe part 208 and the rising pipe part 212 and the bottom part 210, and prevents the backflow of odors from the downstream side.
[0005]
In the case of this drainage device 202, negative pressure acts on the inside of the drainage pipe trap 204 by the flowing water in the drainage main pipe 206 when the water in the water tank 200 is drained, and foreign matters such as lint inside the drainage pipe trap 204 are removed from the drainage pipe. The water is drawn into the downstream side, that is, the drainage main pipe 206 side by the siphon phenomenon together with the drainage in the trap 204, and is well discharged to the outside.
Then, a certain amount of falling water from the water tank 200 at the end of drainage is held in the drain pipe trap 204 to perform water sealing.
[0006]
[Problems to be solved by the invention]
However, in the case of this drainage device, the following problems have conventionally occurred.
That is, when a siphon phenomenon occurs in the drain pipe trap 204, air is drawn in from a drain outlet or an overflow hole of the water tank 200 and noise such as “gobogobo” is generated, or when a siphon phenomenon occurs strongly. There has been a problem that the sealed water held in the drain pipe trap 204 is strongly drawn into the drain main pipe 206 side and the amount of sealed water is reduced.
In particular, in the case of a drain pipe trap having a form as shown in FIG.
[0007]
The drainage device 202A in the form shown in FIG. 17 has a straight shape in which the bottom 210A of the drainage pipe trap 204A is substantially horizontal, that is, the bottom 210 has an upward curved shape like the conventional drainage pipe trap 204 shown in FIG. In the case of this drain pipe trap 204A, the lower surface position of the bottom 210A can be positioned upward, and therefore this can be used for the washbasin of the vanity. When applied to a drainage device, there is an advantage that a storage space below the drain pipe trap 204A in the cabinet can be secured widely, but on the other hand, since the sealing depth becomes shallow, the above-mentioned sealing water breakage tends to occur.
[0008]
[Means for Solving the Problems]
The invention of the present application has been made to solve such problems.
Thus, the drainage device according to claim 1 is provided with a falling pipe section for guiding the drainage from the water tank such as a kitchen sink and a wash basin downward, a bottom section following the falling pipe section, and a rising pipe section rising from the bottom section. If, with respect to drainage pipe trap and a transverse tube portion following the upstanding upstream tube portion, the drainage mains forming at least upper falling shape in the drainage device in the form in communication with said tube portion, said rising Forming a container portion having a shape that rapidly expands in a direction perpendicular to the tube axis of the rising pipe portion and protrudes upward from an end of the connecting pipe portion on the rising pipe portion side; The portion is a replenishing tank portion that accommodates and holds a part of the drainage at the time of drainage and returns the retained drainage to the bottom side at the end of drainage .
[0009]
Drainage device according to claim 2, and characterized in that Oite to claim 1, at least a portion subsequent to the riser portion of the tube portion, and without an inclined shape inclined downward toward the upstanding upstream pipe portion To do.
[0010]
Drainage device according to claim 3, and characterized in that Oite to claim 1, at least a portion following the drainage mains of the tube portion, and without an inclined shape inclined downwardly toward the drainage mains To do.
[0011]
A drainage device according to a fourth aspect of the present invention is the drainage device according to any one of the second and third aspects, wherein the connecting pipe portion is divided into the rising pipe portion side and the drainage main pipe side, and the portion on the rising pipe portion side is the rising pipe portion. Further, the drain main pipe side portion is inclined downward toward the drain main pipe.
[0012]
[Operation and effect of the invention]
Drainage device 請 Motomeko 1, the drain pipe trap that a portion of the waste water containing retained during drainage, provided the replenishment tank to return water to the held drainage on the bottom side of the drain pipe trap when draining ends Thus, according to this drainage device, it is possible to satisfactorily prevent the sealed water in the drain pipe trap based on the siphon phenomenon .
[0013]
Also the drainage device, than the upper portion of the riser portion to form a replenishing tank at rapid expanded configuration to its tube axis and perpendicular, in the case of the drainage device, sand and dust etc. contained in the waste water Remains in the replenishing tank and does not cause a problem of accumulation.
Furthermore, in this drainage device, since the upper part of the replenishing tank part protrudes upward from the end on the rising pipe part side of the connecting pipe part, the inside of the part protruding upward mainly acts as an air reservoir part. The siphon phenomenon can be suppressed by the action as the air reservoir, and the generation of noise and the occurrence of running out of sealed water can be suppressed.
[0014]
The drainage device according to claim 2 has a shape in which at least a part of the connecting pipe part, specifically, a part on the rising pipe part side is inclined downward toward the rising pipe part. In this case, sand, dust, etc. inside the connecting pipe part can be smoothly discharged toward the drainage main pipe based on the inclined shape, and it can be suppressed that they remain and accumulate in the connecting pipe part. .
[0015]
Furthermore, this connecting pipe part can also be made into the shape which inclined the part by the side of the drainage main body toward the drainage main pipe downward (Claim 3 ). Even in this case, sand, dust, etc. inside the connecting pipe part can be discharged toward the drain main.
[0016]
When the connecting pipe part is inclined as described above, the connecting pipe part is divided into the rising pipe part side and the drain main pipe side, and the part on the rising pipe part side toward the rising pipe part and the drain main pipe The side portions can be inclined downward toward the main drainage pipe (claim 4 ).
[0017]
When the connecting pipe parts are relatively long, it is difficult to discharge all the sand and garbage in the connecting pipe part to the drainage main pipe side when they are inclined in a certain direction.
[0018]
However, when the connecting pipe part is divided into the rising pipe part side and the drainage main pipe side according to claim 4 and each is inclined in the opposite direction, the sand and dust inside the connecting pipe part are generally good. Can be discharged.
[0019]
【Example】
Next, embodiments of the present invention will be described in detail with reference to the drawings together with reference examples .
In FIG. 1, 10 is a vanity, 12 is a washbasin, and 14 is a washbasin faucet. Reference numeral 16 denotes a cabinet in the bathroom vanity 10, and a drainage device 22 (reference example) having a drainpipe trap 18 and a drainage main pipe 20 is provided inside.
[0020]
FIG. 2 specifically shows the configuration of the drainage device 22.
In the figure, reference numeral 24 denotes an opening formed in the bottom of the basin 12, and a metal and cylindrical drain port member 28 having a flange 26 is inserted downwardly into the opening 24. A drain port 30 is formed by the member 28.
[0021]
The drain port member 28 has a male screw portion on the outer peripheral surface of the lower end portion, and a tightening nut 32 is tightened from the back side of the basin 12 with respect to the male screw portion. The drain port member 28 is fixed to the bottom of the basin 12 through the packings 34 and 36 and the slip washer 33 by the tightening force.
[0022]
An annular groove 38 that opens downward is formed in the tightening nut 32, and an annular protrusion 42 at the upper end portion of the falling pipe portion 40 in the drain pipe trap 18 is interposed through an O-ring 44 as a sealing material. And assembled in a watertight and relatively rotatable manner. Here, a downward stepped surface 46 is formed on the outer peripheral surface of the annular protrusion 42.
[0023]
On the other hand, a fitting groove 48 is formed on the outer side of the annular groove 38 of the tightening nut 32 as shown in FIG. 3, and an elastic C-ring 50 is provided as a retaining member inside the fitting groove 48. The inner periphery of the drainage trap 18 is engaged with the stepped surface 46, so that the upper end of the drain pipe trap 18 is prevented from being pulled out from the tightening nut 32.
[0024]
The drain pipe trap 18 includes the falling pipe portion 40 that falls straight downward following the drain port member 28, a bottom portion 52 that follows, and a rising pipe portion 54 that rises straight from the right end of the bottom portion 52 in the drawing. And a connecting pipe portion 56 extending in the horizontal direction following the upper end thereof, and the drainage main pipe 20 is connected to the lower surface of the end portion of the connecting pipe portion 56.
[0025]
In this example, the bottom portion 52 does not have a curved shape like the bottom portion of the conventional drain pipe trap shown in FIG. 16, but has a straight shape extending straight in the left-right direction.
[0026]
In this example, the inner diameters D ₁ , D _2, and D ₃ of the falling pipe portion 40, the rising pipe portion 54, and the drain main pipe 20 are set to 34 mmφ, 28 mmφ, and 28 mmφ, respectively.
[0027]
In this example, the end portion of the connecting pipe portion 56 is partially protruded upward, and an air reservoir 60 is formed inside the protruding portion 58. Moreover, the part from the bottom face of the terminal part of the connecting pipe part 56 to the inner wall surface 20A on the connecting pipe part 56 side of the drain main pipe 20 is formed into a square shape bent downward at a right angle.
That is, a corner 62 where the intersection of the bottom of the connecting pipe 56 and the inner wall surface 20A of the drain main 20 intersects at 90 °.
[0028]
In addition, it is desirable that the bottom surface 56A of the end portion in the connecting pipe portion 56 and the upper end portion of the inner wall surface 20A of the drainage main pipe 20 are flat surfaces as shown in FIGS. 9B and 9C. .
[0029]
FIG. 4 schematically shows the flow of water during drainage in the drainage device of this example. As shown in the figure, in the drainage device of this example, air is stored in the air reservoir 60 during drainage. It is in a confined and held state. That is, an air pocket is generated there. And the siphon phenomenon at the time of drainage is suppressed by the effect | action of the air pocket.
[0030]
Furthermore, in the case of the drainage device of this example, the flow of drainage that circulates in the horizontal direction through the connecting pipe portion 56 is caused to abut against the outer wall surface 20B opposite to the inner wall surface 20A in the drainage main pipe 20 by its own water force. It flows into the drain main 20.
[0031]
As a result, as shown in FIG. 4, an air layer 64 that passes vertically through the drain main 20 is formed below the corner 62. The siphon phenomenon is also suppressed by the air layer 64.
[0032]
For this reason, in the case of the drainage device 22 of this example, the occurrence of noise involving air at the time of drainage, that is, the “gobogobo sound” is suppressed, and at the same time, the drainage trap 18 is prevented from being closed.
[0033]
In this example, a part of the connecting pipe part 56 is partially protruded upward, and the air reservoir 60 is formed inside the protrusion 58. Therefore, the air reservoir 60 is formed large. And siphon action during drainage can be effectively suppressed. Moreover, the air reservoir 60 can be configured easily.
[0034]
Also, the presence of the air layer 64 acts to help suppress the siphon phenomenon, and it is possible to more effectively prevent the occurrence of a large “gobogo sound” and a lack of sealed water that occur when the siphon action is too strong.
[0035]
FIG. 5 shows an example in which the protruding portion 58 is provided at the intermediate portion in the left-right direction of the connecting pipe portion 56, and an air reservoir 60 is provided on the inner side thereof. Therefore, the siphon phenomenon during drainage can be suppressed by the action of the air reservoir 60 even in the case shown in FIG. Occurrence and running out of sealed water can be suppressed.
[0036]
In this embodiment, the upper end portion of the connecting pipe portion 56 is bent downward, and a corner portion 66 is formed there. The inside of the corner portion 66 is an air reservoir 68.
[0037]
Therefore, in the case of the drainage device of this example, air is confined and held inside the corner portion 66 during drainage, and the siphon action is further suppressed by the action of the air in the air reservoir 68.
[0038]
As shown in FIG. 6A, the protruding portion 58 and the air reservoir 60 can also be formed by protruding the end portion of the connecting tube portion 56 horizontally (rearward).
Further, the connecting pipe portion 56 can be formed not only in a correct horizontal orientation but also in a slightly inclined shape as shown in FIG.
[0039]
And the said protrusion part 58 and the air reservoir part 60 may be formed in the terminal part of the connecting pipe part 56 of the slightly inclined shape as shown in FIG.6 (B), or it shows to (C). It can also be formed upward in the middle part.
[0040]
Here, as shown in FIG. 7, the upper end portion of the connecting pipe part 56 is formed in a square shape without providing a protruding part in which a part of the connecting pipe part is partially protruded and an air reservoir inside thereof. It is also possible to form the air reservoir 68 only inside the corner 66.
[0041]
Even in this case, when the momentum of the drainage from the basin 12 is not extremely strong, it is possible to sufficiently suppress the generation of noise and the occurrence of running out of sealed water.
[0042]
That is, even when the washbasin 12 is filled with water and the drainage valve is lifted upward to form a gap between the drainage port and the drainage plug, the water is fully filled from the gap. In addition, it is possible to prevent the generation of the noise and the occurrence of the water seal.
And when the above protrusions 58 and the air reservoir 60 inside thereof are added, their effects can be further enhanced.
[0043]
8 and 9 show other reference examples.
In this example, a part of the drainage is temporarily accommodated and held at the time of drainage, and the drainage held and retained at the end of drainage is automatically returned to the bottom 52 side of the drain pipe trap 18. 70 is provided on the lower side of the connecting pipe part 56 in such a manner as to straddle the rising pipe part 54 and the connecting pipe part 56.
Here, the replenishing tank unit 70 is provided in a form in which the upper surface and the left end surface in the drawing are opened to the connecting pipe unit 56 and the rising pipe unit 54.
[0044]
Here, as shown in FIG. 9A, the replenishing tank unit 70 and the connecting pipe unit 56 each have a circular cross-sectional shape, and in the opening 72, they are communicated with each other vertically.
That is, the replenishment tank unit 70 and the communication pipe unit 56, strictly speaking, the upper part of the replenishment tank unit 70 in the communication pipe unit 56 has a cross-sectional darling shape as a whole. A constriction 74 is formed at the boundary.
[0045]
In addition, the shape of the bottom face 56A of the terminal part in the connecting pipe part 56 is a flat shape as shown in FIG.
Moreover, as shown to (C), the upper end part shape of 20 A of inner wall surfaces in the drain main 20 is also made into the flat shape.
[0046]
FIG. 10 schematically shows the behavior of the water flow during drainage in the drainage apparatus shown in FIGS.
As shown in the figure, in the case of the drainage device of this example, when the water inside the basin 12 is drained vigorously, a part of the drainage is accommodated and held in the replenishment tank unit 70.
At the end of drainage, that is, when the momentum of the drainage flow is weakened, the water temporarily stored and held in the replenishing tank unit 70 is returned to the bottom 52 side of the drainpipe trap 18.
[0047]
The drainage device of this example has been devised based on the following knowledge.
In a state where water is stored in the basin 12 in a full state, the plug of the drain port 30 is pulled out to make the drain port 30 fully open, and in that state the water in the basin 12 is fully drained. The drainage flows through the distribution pipe trap 18 and the drainage main pipe 20 with vigorous momentum.
In this state, it is difficult to sufficiently suppress the siphon phenomenon, and it is difficult to completely prevent the sealed water outage in the drainage device of the above-described embodiment.
[0048]
Therefore, the apparatus shown in FIGS. 8 and 9 does not prevent the water seal from being cut off by suppressing the siphon phenomenon, but temporarily stores and holds it until the momentum of the water flow is weakened at the end of drainage. The discharged water is returned to the bottom 52 side of the drain pipe trap 18 so as to prevent the sealing water from running out.
Therefore, in the case of the drainage device of this example, the momentum of the water flow is remarkably strong, and it is possible to sufficiently prevent the sealing water from being cut off even under conditions where siphon phenomenon occurs excessively.
[0049]
In the apparatus of this example, the corner portions 66 and 62 and the air reservoir 68 inside the corner portion 66 are formed at the end portion of the connecting pipe portion 56. Therefore, the momentum of the drainage is intermediate, specifically, In the case where drainage is performed by slightly raising the plug at the bottom while the water is filled in the basin 12, the siphon phenomenon can be sufficiently suppressed, noise generation due to air entrainment, It is possible to sufficiently prevent the seal water from being cut off due to the siphon phenomenon.
[0050]
FIG. 11 shows another example of the replenishment tank unit. Among these, (A) shows an example in which a replenishment tank unit 76 is formed by projecting the upper end of the rising pipe unit 54 to the left in the figure. Further, in the example of FIG. 11B, a replenishment tank portion is formed by forming a container portion in which the upper end portion of the rising pipe portion 54 protrudes in a direction perpendicular to the respective pipe axis directions of the rising pipe portion 54 and the connecting pipe portion 56. 78 is an example.
Further, the example of (C) shows an example in which the example of FIG. 11B is combined with the examples of FIGS.
[0051]
In addition , as shown in FIG. 12, it is possible to change the distance L between the pipe axes of the rising pipe portion 54 and the drain main pipe 20 in the drain pipe trap in various ways. As shown, a part or the whole of the drainage main pipe 20 can be constituted by a bellows pipe 80.
[0052]
Figure 13 shows the actual施例of the present invention.
In this example, a part of the connecting pipe part 56, specifically, a part on the rising pipe part 54 side, is an inclined part 82 that is inclined downward toward the rising pipe part 54, and an air reservoir is formed at the upper end part of the rising pipe part 54. This is an example in which a replenishment tank section 84 also serving as a section is provided.
[0053]
Here, as shown in FIG. 14, the replenishing tank portion 84 is formed to have a width in the horizontal direction larger than that of the rising pipe portion 54 and the connecting pipe portion 56. That is, in this example, the water channel of the rising pipe portion 54 is suddenly expanded in two directions perpendicular to the pipe axis of the rising pipe portion 54 to form a container portion, and the supply tank portion 84 is formed by the container portion. .
The replenishing tank portion 84 also has a shape in which the upper portion projects upward from the left end of the connecting pipe portion 82 in the drawing.
[0054]
Thus, in this example, an action as an air reservoir is mainly performed inside the upward projecting part, and the other part acts as a replenishing tank part.
[0055]
When the drainage is performed vigorously, the replenishment tank unit 84 temporarily stores and holds a part of the drainage at the time of drainage, and the drainage stored and held at the end of drainage to the bottom side of the drain pipe trap. Return water.
[0056]
In the case of the drainage device of this example, since the replenishment tank portion 84 is formed vertically at the upper end portion of the rising pipe portion 54, a part thereof is accommodated and held in the replenishment tank portion 84 at the time of drainage, When returning the stored drainage to the bottom 52 side of the drainpipe trap 18, sand, dust, etc. contained in the drainage remain in the replenishment tank 84, and they gradually accumulate. Has the advantage of not causing problems.
[0057]
Furthermore, in this embodiment, since the portion on the rising pipe portion 54 side of the connecting pipe portion 56 is an inclined portion 82 inclined downward toward the rising pipe portion 54, the connecting pipe portion 56 also has its inside. In addition, there is an advantage that no problems such as accumulation of sand and dust remaining gradually occur.
That is, when the connecting pipe part 56 is made almost horizontal, sand or dust remains in the inside and gradually accumulates. However, in the drainage device of this example, the sand and dirt inside the connecting pipe part 56 are inclined. It is discharged to the drain main 20 side by the action of the water flowing through the section 82 and is prevented from remaining in the connecting pipe section 56.
[0058]
FIG. 15 shows still another embodiment of the present invention. In this example, when the connecting pipe portion 56 is elongated in the left-right direction, two inclined portions that incline the connecting pipe portion 56 in opposite directions to each other. 82, 86.
That is, in this example, the connecting pipe part 56 is divided into the rising pipe part 54 side and the drainage main pipe 20 side, and the part on the rising pipe part 54 side is inclined downward toward the rising pipe part 54. In addition, a portion on the drain main 20 side is an inclined portion 86 that is inclined downward toward the drain main 20.
[0059]
As described above, by forming the connecting pipe portion 56 into the inclined portions 82 and 86 that are inclined in the opposite directions, even when the connecting pipe portion 56 is formed long, sand, dust, or the like accumulates in the connecting pipe portion 56. It is possible to prevent such sand, dust and the like from being discharged well toward the drain main 20.
[0060]
Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be applied as a drainage device that discharges the drainage from the kitchen sink to the outside. It can be configured with various modifications.
[Brief description of the drawings]
FIG. 1 is a view showing a drainage device, which is one reference example of the present invention, in a state where it is connected to a washbasin of a vanity.
FIG. 2 is a diagram showing a specific configuration of the drainage device in FIG.
FIG. 3 is an exploded view showing the main part of the drainage device of FIG. 2 into each member.
FIG. 4 is a view showing the operation of the drainage device of the reference example.
FIG. 5 is a view showing an air reservoir portion and a peripheral portion thereof together with the operation thereof in another reference example.
6 is a diagram further showing the surrounding portion air reservoir in another reference example.
[7] Further to the air reservoir portion and the peripheral portion in the other reference example illustrates with its action.
In Figure 8 further illustrates a drainage device of another reference example.
9 is a cross-sectional view of a main part of the drainage device of FIG.
10 is an operation explanatory view of the drainage device of FIG. 8. FIG.
11 is a diagram illustrating a surrounding portion air reservoir in another reference example in further.
In FIG. 12 further illustrates a drainage device of another reference example.
13 is a diagram showing a drainage device of a real施例of the present invention.
14 is a cross-sectional view of a main part of the drainage device of FIG.
FIG. 15 is a cross-sectional view of a main part of a drainage device in still another embodiment of the present invention.
FIG. 16 is a diagram showing an example of a conventional drainage device.
FIG. 17 is a comparative example diagram for comparing and explaining the advantages of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 12 Basin 18 Water distribution pipe trap 20 Drain main pipe 20A Inner wall surface 20B Outer wall surface 22 Drainage device 40 Falling pipe part 52 Bottom part 54 Rising pipe part 56 Connecting pipe part 58 Projection part 60, 68 Air storage part 62, 66 Corner part 64 Air layer 70 Supply tank 74 Constriction 82,86 Inclined part

Claims (4)

A falling pipe part that guides the downward flow of drainage from the water tank such as a kitchen sink and a basin, a bottom part that follows the falling pipe part, a rising pipe part that rises from the bottom part, and a lateral connection that follows the rising pipe part In a drainage device having a configuration in which a drainage main pipe having a falling shape at least at the top is connected to the drainage pipe trap provided with a pipe part by the connecting pipe part
On the top of the rising pipe part, a container part having a shape that rapidly expands in a direction perpendicular to the pipe axis of the rising pipe part and protrudes upward from the end of the connecting pipe part on the rising pipe part side is formed, A drainage device characterized in that the container portion is a replenishment tank portion that accommodates and holds a part of drainage at the time of drainage and returns the retained drainage to the bottom side at the end of drainage. Oite to claim 1, at least a portion subsequent to the riser portion of the tube portion, the drainage device is characterized in that no inclined shape inclined downward toward the upstanding upstream tube portion. Oite to claim 1, drainage device at least partially following the drainage mains of the tube portion, characterized in that without an inclined shape inclined downwardly toward the drainage mains. 4. The connecting pipe part according to claim 2 , wherein the connecting pipe part is divided into the rising pipe part side and the drain main pipe side, and the portion on the rising pipe part side toward the rising pipe part and the drainage main part. A drainage device characterized in that a pipe-side portion is inclined downward toward the drainage main pipe.

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