TWI706071B - Storage tank - Google Patents

Abstract

Provides a storage tank that can suppress the length of the liquid passage, and allow most liquids to drain quickly and smoothly.

A storage tank has an inlet and an outlet, and can store the liquid flowing in from the inlet. The storage tank has: a liquid passage path that connects the inflow port and the outflow port, and guides the liquid flowing in from the inflow port to the outflow port, and extends in a straight line; and a liquid retention portion, which sandwiches the liquid passage path The positions on both sides of the, and are arranged at positions adjacent to the liquid passage, can retain the liquid flowing in from the inlet.

Description

Storage tank

The invention relates to a storage tank.

As the drainage system of the collective housing, there is a system that uses the principle of siphon to promote drainage and is called a siphon drainage system. In the case of a siphon drainage system that drains a large amount of water from a bathtub or other water equipment at one time, it is necessary to install a storage tank for temporarily storing liquid during the period of the start of the promotion of drainage. As a general storage tank, a flow path reduction part is provided between the outlet of the storage tank and the storage tank body, and an inner wall surface bulging outward is provided in a part of the flow path reduction part (see, for example, Patent Document 1).

【Prior Technical Literature】

【Patent Literature】

Patent Document 1: JP 2016-108749 A

According to the above-mentioned storage tank, the liquid flowing into the storage tank but not flowing out from the vicinity of the outflow port is guided along the inner wall surface in a direction away from the outflow port. Therefore, according to the storage tank, the liquid from the storage tank can easily flow out without hindering the flow of the liquid from the outflow port.

However, the storage tank has a cylindrical storage tank body. Therefore, when more liquid is allowed to flow into the storage tank under normal conditions, for example, the distance from the inlet of the storage tank to the partition wall of the building needs to be lengthened, and the cavity in the tank body is enlarged. . In other words, in the conventional storage tank under normal conditions for allowing more liquid to flow into it, if it is desired to smoothly drain the water from the storage tank, the length of the liquid passage path connecting the inflow port and the outflow port will be lengthened. On the contrary, if it is desired to suppress the length of the liquid passage path, it will take a long time from the time the storage tank starts to drain smoothly. In other words, if the storage tank in the past wanted more liquid The rapid and smooth drainage of the land will tend to increase the length of the path through which the liquid passes, and even the length of the piping of the entire drainage system.

The object of the present invention is to provide a storage tank capable of suppressing the length of a liquid passing path and draining most liquids quickly and smoothly.

The storage tank related to the present invention has an inflow port for letting the liquid flow in and an outflow port for letting the liquid flow out, and the storage tank that can store the liquid flowing in from the inflow port inside has: a liquid passage path, The inflow port and the outflow port are connected, and the liquid flowing in from the inflow port is guided to the outflow port and extends linearly; and a liquid retention portion is attached to each of the two sides of the path through which the liquid passes. Position, and is arranged at a position adjacent to the passage of the liquid, which can retain the liquid flowing in from the inlet.

According to the storage tank related to the present invention, the length of the liquid passing path can be suppressed, and most liquids can be drained quickly and smoothly.

In the storage tank related to the present invention, the length of the liquid passage in the extending direction of the liquid passage is preferably shorter than the length of the liquid retention portion in the extending direction of the liquid passage.

In this case, most liquids can be drained more quickly and smoothly.

The storage tank related to the present invention is preferably arranged in a manner of sandwiching the liquid passage and arranged at positions along both sides of the floor of the building to arrange the liquid retention portion on the floor.

In this case, it is not necessary to ensure a large height of the space under the bottom plate, and most liquids can be drained quickly and smoothly.

In the storage tank related to the present invention, the bottom surface of the liquid retention portion has a flat surface portion, and the flat surface portion is inclined downward as it faces the liquid passage path, and is connected to The liquid passes through the plane of the bottom surface of the path.

In this case, most liquids can be drained more smoothly.

In the storage tank related to the present invention, the bottom surface of the liquid passage path is preferably located at a position lower than the bottom surface of the liquid retention portion.

In this case, the liquid can be drained more smoothly through the liquid passage.

In the storage tank related to the present invention, the bottom surface of the liquid retention portion, when viewed from the bottom of the storage tank, preferably has a peripheral wall that extends along the outer shape of the storage tank and forms the liquid retention portion. The contour part of the contour, when viewed in the extending direction of the contour part, the contour part is from the inner side of the storage groove toward the convex curved surface.

In this case, it is possible to suppress the adhesion of dirt to the inner surface of the peripheral wall in the bottom surface of the liquid storage portion.

According to the present invention, it is possible to provide a storage tank, which can suppress the length of the liquid passing path and allow more liquid to be drained quickly and smoothly.

1‧‧‧Storage tank

1a‧‧‧Inlet

1b‧‧‧Outlet

1c‧‧‧Vent

2‧‧‧ Zhoubi

2a‧‧‧The first opposite wall

2b‧‧‧The second opposite wall

2c‧‧‧Wall

2d‧‧‧Guide Wall

2f‧‧‧Inside

3‧‧‧Liquid passage

3f‧‧‧The bottom of the liquid path

3f1‧‧‧The straight part of the bottom surface of the liquid passing path

3f2‧‧‧The adjacent part of the bottom surface of the liquid passage

4‧‧‧Liquid retention part

4f‧‧‧Bottom of liquid retention part

4f1‧‧‧The flat part of the bottom surface of the liquid retention part

4f2‧‧‧The contour part of the bottom surface of the liquid retention part

100‧‧‧Drainage system

101‧‧‧Bottom plate member

102‧‧‧Floor

110‧‧‧Water Utensils

120‧‧‧Appliance drain

120a‧‧‧Upstream part of appliance drain pipe

120b‧‧‧The downstream part of the appliance drain

121‧‧‧Drainage trap

130‧‧‧Siphon drain

130a‧‧‧Straight drawn pipe for siphon drainage pipe

130b‧‧‧Vertical pipe of siphon drainage pipe

140‧‧‧Pipe joint

150‧‧‧Riser

S‧‧‧Space under the floor

Fig. 1 is a perspective view showing the inlet side of a storage tank according to an embodiment of the present invention from above.

Fig. 2 is a perspective view showing the outlet side of the storage tank of Fig. 1 from above.

Figure 3 is a front view of the storage tank of Figure 1;

Figure 4 is a rear view of the storage tank of Figure 1;

Figure 5 is a top view showing the storage tank of Figure 1 from above.

Fig. 6 is a sectional view taken along line A-A of Fig. 5.

Figure 7 is a B-B cross-sectional view of Figure 5.

FIG. 8 is a system diagram schematically showing an example of a drainage system applicable to the storage tank of FIG. 1 in partial section.

Hereinafter, the storage tank 1 related to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 8 shows an example of a drainage system 100 applicable to the storage tank 1. In this example, the drainage system 100 is a siphon drainage system. The siphon drainage system uses the siphon principle to promote drainage. The general drainage system 100 is used, for example, as a drainage system for a housing complex that partitions a building into multiple floors.

In this example, the drainage system 100 has: a water appliance 110; an appliance drainage pipe 120; a storage tank 1; and a siphon drainage pipe 130. In this example, the siphon drain pipe 130 is connected to the stand pipe 150 through a pipe joint 140. The riser 150 penetrates each floor of the building in the up and down direction.

The water appliance 110 will be arranged on each floor of the building. Examples of the water appliance 110 include a bathtub (integrated bathroom), a washstand, and a countertop. In this example, the water appliance 110 is an integrated bathroom.

The appliance drain pipe 120 is arranged in the underfloor space S between the floor member 101 and the floor 102 of the building. The appliance drainage pipe 120 is connected to the water appliance 110 and the storage tank 1. In this example, the appliance drain pipe 120 is composed of an upstream portion 120a and a downstream portion 120b that will be connected to the upstream portion 120a. In this example, the appliance drainage pipe 120 is arranged in the space S under the floor. The upstream part 120 a of the appliance drain pipe 120 extends in the longitudinal direction and is connected to the water appliance 110. In addition, the downstream portion 120b of the appliance drain pipe 120 is connected to the storage tank 1 in a state of being inclined so as to be inclined downward as it goes to the storage tank 1 and extends in the lateral direction. Furthermore, in the present embodiment, the appliance drain pipe 120 has a drain trap 121 interposed in the downstream portion 120b.

The siphon drainage pipe 130 is a horizontally drawn pipe 130a described below, which is arranged in the space S under the floor, and penetrates the floor 102 to hang downward. In this example, the siphon drainage pipe 130 is connected to the storage tank 1 and the stand pipe 150. The riser 150 is a drainage pipe that penetrates each floor of the building in the vertical direction. In this embodiment, the siphon drain pipe 130 is constituted by a horizontally drawn pipe 130a and a vertical pipe 130b connected to the horizontally drawn pipe 130a. The horizontal drawing pipe 130a of the siphon drainage pipe 130 is arranged in the space S under the floor in an almost horizontal and non-inclined manner. The vertical pipe 130b of the siphon drainage pipe 130 hangs downward through the floor 102, and is connected to the vertical pipe 150 through a pipe joint 140.

The drainage system 100 uses the principle of siphon for drainage. First, the drainage system 100 drains the water (liquid) in the water appliance 110 by the height difference H1 between the outlet of the water appliance 110 and the horizontal draw pipe 130a of the siphon drain pipe 130. The water (drain) discharged from the outlet of the water appliance 110 is caused to fall to the upstream portion 120a of the appliance drain pipe 120 due to its own weight (drop squeeze pressure). Then, the drainage from the upstream part 120a of the appliance drain pipe 120 fills the downstream part 120b of the appliance drain pipe 120, and then passes through the storage tank 1 to fill the horizontal drawing pipe 130a of the siphon drain pipe 130.

Here, in this example, the siphon drain pipe 130 forms a siphon that uses siphon force to generate attractive force. Suction and drainage path. The siphon drainage path is shown in Fig. 8, along the floor 102 of the floor where the water appliance 110 is installed, and the horizontal drawing pipe (horizontal pipe) 130a and extension of the siphon drainage pipe 130 after piping with a slightly horizontal without inclination A vertical pipe (outflow vertical pipe) 130b of the siphon drain pipe 130 is formed slightly below the horizontally drawn pipe 130a to generate a siphon force (eg, negative pressure).

According to the siphon drainage system using such a siphon drainage path, the drain pipe is filled with full water and the drainage pipe forming the siphon drainage path can be arranged without inclination. In addition, since the siphon drainage system is full-flow drainage, it can prevent solid objects from adhering to the pipe, and a small-diameter pipe can be used. In addition, the siphon drainage system can reduce the height of the space under the floor where the drainage pipes are arranged by arranging the drainage pipes without inclination, and can lengthen the distance from the drainage source (for example, various water appliances 110) to the riser 150 Extend the distance (for example, the horizontal length L from the outlet of the water appliance 110 to the vertical pipe 130b of the siphon drain pipe 130) (refer to FIG. 8), and the degree of freedom of layout can be improved.

In the siphon drainage path of this example, the height difference H1 between the outlet of the water appliance 110 and the horizontal drawing pipe 130a of the siphon drainage pipe 130 is used to allow the appliance to drain by the pressure of the drain from the water appliance 110. The horizontal drawing pipe 130a (horizontal length L) of the pipe 120 and the siphon drainage pipe 130 is filled with water, and the horizontal drawing pipe 130a of the siphon drainage pipe 130 is filled with water to reach the vertical pipe 130b of the siphon drainage pipe 130 ( The drainage of the hanging length H2) starts to fall to the vertical pipe 130b, and the horizontal drawing pipe 130a of the siphon drainage pipe 130 is filled with water to generate a siphon effect. The siphon effect is used as the drainage power, and the high-speed flow generated in the siphon drainage path is used to drain the water from the water appliance 110, and the drainage will be smoothly and quickly released into the inside of the pipe joint 140.

The drainage system 100 is set to discharge a large amount of water from the water appliance 110 at a time, and a storage tank 1 is provided between the appliance drainage pipe 120 and the siphon drainage pipe 130. The storage tank 1 can temporarily accumulate a large amount of water drained from the water appliance 110 at a time during the period when the drainage promotion starts.

Fig. 1 and Fig. 2 respectively show a perspective view of the storage tank 1 related to this embodiment. The storage tank 1 has an inflow port 1a for letting the drain water from the water use appliance 110 flow in, and an outflow port 1b for letting the drain water out, and the drain water flowing in from the inflow port 1a can be stored inside. In this embodiment, the inflow port 1a and the outflow port 1b are formed in the peripheral wall 2 of the storage tank 1, respectively.

The storage tank 1 has: the inflow port 1a and the outflow port 1b are connected, and the inflow from the inflow port 1a The drainage is guided to the liquid passage 3 of the outflow port 1b. The liquid passage 3 extends linearly as shown in Fig. 5 and the like below. Furthermore, in this embodiment, more specifically, the liquid passage 3 is shown in FIGS. 3 and 4, when viewed from the direction of drainage of the drainage (viewed from the extending direction of the liquid passage 3), it is connected with the inflow port 1a At least part of the outflow ports 1b are aligned on a straight line.

3 and 4, the specific example of the arrangement of the inflow port 1a and the outflow port 1b is, for example, a method of combining any one of the following (1) to (3).

(1) When viewed in the extending direction of the liquid passage 3, the center Oa of the inflow port 1a and the center Ob of the outflow port 1b are aligned on the same vertical line Oz.

(2) Adjust the inner diameter of the inlet 1a (the radius of the inlet 1a) and the inner diameter of the outlet 1b (the radius of the outlet 1b)

(3) Adjust the vertical direction (vertical line Oz direction) interval ΔZ between the center Oa of the inlet 1a and the center Ob of the outlet 1b.

In this embodiment, all the methods (1) to (3) are used, and when viewed in the direction of flow of the drainage (observed in the direction in which the liquid passes through the path 3), it will overlap with at least a part of the inflow port 1a on a straight line. Way to align the outlets 1b. In particular, as shown in Figs. 3 and 4, in (2) of the present embodiment, the inner diameter of the inlet 1b is set to be smaller than the inner diameter of the inlet 1a. As a result, the amount of drain water flowing out from the outflow port 1b is smaller than the amount of drain water flowing in from the inflow port 1a. In this embodiment, as shown in FIGS. 3 and 4, in (3), the center Oa of the inflow port 1a and the center Ob of the outflow port 1b are made so that the upper end of the opening of the outflow port 1b overlaps the inflow port. Adjust the vertical interval △Z by means of the lower end of the opening in 1a.

Further as shown in Figure 5, the storage tank 1 is located at each position on both sides of the sandwiched liquid passage 3, and is arranged at a position adjacent to the liquid passage 3, and has: The liquid retention portion 4 in which the inflowing drainage retains. The two liquid retention portions 4 are each shown in FIG. 5 and have a bottom surface 4f divided into the inner side of the peripheral wall 2 and the liquid passage 3 in a plan view. The bottom surface 4f of the two liquid retention portions 4 and the bottom surface 3f of the liquid passage 3 are formed into the bottom surface of the storage tank 1 partitioned inside the peripheral wall 2.

According to the storage tank 1 related to this embodiment, as shown in Figs. 3 to 5, the liquid passage 3 will be curved, or not extend in a zigzag shape, but in a straight line. In this way, connect the inflow The liquid passage path 3 between 1a and the outflow port 1b becomes the shortest path connecting the inflow port 1a and the outflow port 1b. Moreover, according to the storage tank 1 related to this embodiment, the liquid retention portion 4 is arranged at positions adjacent to the liquid passage 3 at positions on both sides of the liquid passage 3 sandwiched therebetween. Thereby, along with the provision of the liquid retention portion for storing more drain water, the length L3 of the liquid passage 3 in the extending direction of the passage 3 (hereinafter, also referred to as "liquid passage 3 The extension direction length L3") is lengthened to ensure the length L4 of the liquid retention portion 4 in the extension direction of the liquid passage 3 (hereinafter, also referred to as "the extension direction length L4 of the liquid retention portion 4"). Therefore, according to the storage tank 1 related to this embodiment, the length L3 in the extending direction of the liquid passage 3 can be suppressed, and most of the drainage can be discharged quickly and smoothly.

Further, according to the storage tank 1 related to this embodiment, since the liquid retention portion 4 is arranged at each position on both sides of the liquid passage 3, in order to ensure the volume of the liquid retention portion 4, it can be simply enlarged, for example The size (area) of the direction in which the liquid retention portion 4 extends can be achieved without increasing the height of the liquid retention portion 4 or even the height of the storage tank 1. Therefore, as in the present embodiment, for example, if the direction in which the liquid retention portion 4 extends is the horizontal direction on both sides of the interposed liquid passage 3, and the vertical direction of the peripheral wall 2 is the vertical direction, the storage tank 1 If it is installed on the floor 102 or the like, it is possible to quickly and smoothly drain most liquids without ensuring a large height of the space S under the floor. Here, the "height of the storage tank 1" refers to the height (dimension) of the storage tank 1 in the vertical direction. In other words, it is the height (dimension) in the erecting direction of the peripheral wall 2 of the storage tank 1.

From the above point of view, more specifically, for example, in this embodiment, the height of the storage tank 1 can be lower than the width of the storage tank 1. Preferably, the height of the storage tank 1 is 1/th of the width of the storage tank 1. 2 or less, more preferably, the height of the storage tank 1 is less than 1/3 of the width of the storage tank 1. Here, the "width of the storage tank 1" refers to two of the peripheral walls 2 of the storage tank 1 facing each other in a direction orthogonal to the height direction of the storage tank 1 and the extending direction of the liquid passage 3 Maximum width between peripheral walls 2. That is, referring to FIG. 5, it is the width (dimension) between the outer surfaces of the two peripheral walls (side walls) 2c in the storage tank 1 arranged in the left-right direction of the drawing.

Furthermore, in this embodiment, as shown in FIG. 5, the length L3 in the extending direction of the liquid passage 3 is shorter than the length L4 in the extending direction of the liquid retention portion 4. In this embodiment, the length L3 in the extending direction of the liquid passage 3 and the length L4 in the extending direction of the liquid retention portion 4 are relative to the liquid The length parallel to the extending direction of the path 3. In this embodiment, as shown in FIG. 5, the length L3 in the extending direction of the liquid passage 3 and the length L4 in the extending direction of the liquid retention portion 4 are the lengths (dimensions) between the inner surfaces 2f of the peripheral wall 2 of the storage tank 1, respectively. ). In this case, the length L3 in the extending direction of the liquid passage 3 can be suppressed, and the two liquid retention portions 4 can be largely secured in the extending direction of the liquid passage 3. Therefore, most liquids can be drained more quickly and smoothly.

In this embodiment, as shown in FIG. 5, in a plan view, the peripheral wall 2 has two first opposed walls 2a that define the length L3 of the liquid passage 3 in the extending direction. The two first opposed walls 2a are respectively formed with an inflow port 1a and an outflow port 1b. In addition, in this embodiment, as shown in FIG. 5, in a plan view, the peripheral wall 2 has two second opposed walls 2b that define the length L4 in the extending direction of the liquid retention portion 4. The second facing wall 2b is arranged at each position on both sides of the first facing wall 2a. That is, in this embodiment, the storage tank 1 has two liquid retention parts 4. Therefore, in this embodiment, the storage tank 1 has four second opposed walls 2b. Moreover, in this embodiment, as shown in FIG. 5, the peripheral wall 2 has side walls 2c at each position on both sides of the liquid passage 3 in a plan view. The two side walls 2c respectively connect the outer end of the second opposed wall 2b on the side of the inflow port 1a and the outer end of the second opposed wall 2b on the side of the outflow port 1b, and extend along the direction in which the liquid passage 3 extends. Furthermore, in the present embodiment, the first opposed wall 2a on the side of the inflow port 1a is connected to the second opposed wall 2b on the side of the inflow port 1a by a guide wall 2d. Similarly, in the present embodiment, the first opposed wall 2a on the side of the outflow port 1b is connected to the second opposed wall 2b on the side of the outflow port 1b by a guide wall 2d. In this embodiment, the storage tank 1 has two liquid retention parts 4. Therefore, in this embodiment, the storage tank 1 has four guide walls 2d.

In this way, in the present embodiment, the peripheral wall 2 is constituted by two first opposed walls 2a, four second opposed walls 2b, two side walls 2c, and four guide walls 2d. In addition, as shown in FIG. 5, the peripheral wall 2 surrounds the liquid passage 3 and the two liquid retention portions 4 arranged on both sides of the liquid passage 3 in a plan view, and the outer shape of the storage tank 1 is formed into a butterfly shape. (H shape).

In the storage tank 1 related to this embodiment, the distance between the two first opposed walls 2a is narrower than the distance between the two opposed second opposed walls 2b. In other words, as described above, in the storage tank 1 related to this embodiment, the length L3 in the extending direction of the liquid passage 3 is shorter than the length L4 in the extending direction of the liquid retention portion 4. Therefore, according to this embodiment, the liquid passage 3 extends in a longer direction By ensuring the liquid retention portion 4 and shortening the distance between the inflow port 1a and the outflow port 1b, the drainage from the inflow port 1a can flow more directly to the outflow port 1b. Therefore, according to the present embodiment, drainage can flow smoothly, and as a result, the size of the storage tank 1 can be suppressed.

On the other hand, when the siphon drain pipe 130 is connected to the outflow port 1b of the storage tank 1, all the drain water flowing in from the inflow port 1a of the storage tank 1 does not pass through the outflow port 1b but is introduced to the siphon drain at once. Tube 130. This is because the diameter of the horizontally drawn pipe 130a of the siphon drain pipe 130 is formed to be smaller, and as a result, the diameter of the outflow port 1b of the storage tank 1 becomes smaller and narrower. In addition, the reason why all the drain water is not introduced at once through the siphon drain pipe 130 from the outlet 1b of the storage tank 1 is that in the initial stage of drainage, the siphon from the siphon drain pipe 130 is not exerted in the storage tank 1 Because of strength. Because of these various reasons, when the siphon drain pipe 130 is connected to the storage tank 1, water will overflow from the outflow port 1b, and the overflowing water will temporarily accumulate in the liquid retention section 4 provided in the storage tank 1. .

However, the storage tank 1 related to the present embodiment, as described above, is provided with liquid retention portions 4 at positions on both sides of the liquid passage 3, and the length L4 in the extending direction of the liquid retention portion 4 is longer than that of the liquid passage. The length L3 in the extending direction of the path 3 is longer. With the shape of the storage tank 1 in this way, the convection of drainage can be performed in the two liquid retention portions 4 respectively in the liquid retention portions 4. Therefore, the drainage overflowing from the outflow port 1b of the storage tank 1 will flow toward the inflow port 1a along the flow direction of the convection. Thereby, as illustrated by the dashed arrow in Fig. 5, the two liquid retention portions 4 arranged on both sides of the liquid passage 3 can use the downstream of the liquid passage 3 as a base point, allowing the drain that flows into the storage tank 1 and is stored in Convection in the liquid retention portion 4. In this case, when the amount of drain water flowing into the storage tank 1 is small, it is also possible to make it difficult for dirt to adhere to the bottom surface 3f of the liquid passage 3 and the bottom surface 4f of the liquid retention portion 4.

In particular, in this embodiment, the guide wall 2d on the side of the outlet 1b is shown in FIG. 5 in a plan view, from the first opposed wall 2a where the outlet 1b is formed, and goes downstream in the drainage direction It is inclined toward the direction away from the liquid passage 3. In other words, as shown in FIG. 5, in a plan view, the space between the two guide walls 2d on the side of the outflow port 1b expands toward the downstream side in the drainage direction. Thereby, the drain water that cannot flow out of the outlet 1b at one time flows from the inner surface 2f side (the downstream side of the liquid passage 3) of the first opposed wall 2a where the outlet 1b is formed along the outlet 1b side The inner surface 2f of the guide wall 2d is guided to the inner surface 2f side of the second opposed wall 2b on the side of the outflow port 1b. In addition, the drainage guided to the inner surface 2f of the second opposed wall 2b on the side of the outlet 1b is guided to the side wall 2c along the inner surface 2f of the second opposed wall 2b on the side of the outlet 1b.内面2f.

Furthermore, in this embodiment, the guide wall 2d on the side of the inflow port 1a, as shown in FIG. 5, is drawn from the second facing wall 2b on which the inflow port 1a is formed, as shown in FIG. , And tilt toward the direction close to the liquid passing path 3. In other words, as shown in FIG. 5, in a plan view, the gap between the two guide walls 2d on the side of the inflow port 1a is tapered toward the downstream side in the flow direction of the drainage. Thereby, the drainage system along the inner surface 2f of the side wall 2c and guided to the inner surface 2f of the second opposed wall 2b on the side of the inflow port 1a follows the inner surface 2f of the guide wall 2d on the side of the inflow port 1a, and It is guided to the inner surface 2f side (the upstream side of the liquid passage 3) of the first opposed wall 2a in which the inflow port 1a is formed.

In this way, according to the present embodiment with an inclination on the guide wall 2d, as shown by the dashed arrow in FIG. 5, the two liquid retention portions 4 can be generated more efficiently by the liquid passing downstream of the path 3. As the base point of convection. In addition, in the present embodiment, the second opposed wall 2b on the side of the outflow port 1b is formed with a vent 1c. The vent 1c is an opening that allows space to circulate between the liquid retention portion 4 in the storage tank 1 and the outside. By providing the vent 1c, drainage can be more smoothly. The general vent 1c is effective when the inside of the storage tank 1 is closed by a lid or the like.

In addition, the liquid retention portion 4 is arranged in a direction orthogonal to the extending direction of the liquid passage 3 and sandwiches positions on both sides of the liquid passage 3. In this embodiment, as shown in FIG. 8 and the like, the two liquid retention parts 4 are preferably arranged in such a manner that they sandwich the liquid passage 3 and are arranged at positions along both sides of the floor 102. On the floor 102. In this case, it is not necessary to ensure a large height of the space S under the floor, and most liquids can be drained quickly and smoothly.

Further, FIG. 6 is a cross-section perpendicular to the extending direction of the liquid passage 3 in the storage tank 1 related to this embodiment. As shown in FIG. 6, the bottom surface 4f of the liquid retention portion 4 is inclined downward toward the liquid passage 3 when viewed in the extending direction of the liquid passage 3 and is connected to the plane of the bottom 3f of the liquid passage 3. In this case, the drain water accumulated in the liquid accumulation portion 4 flows into the liquid passage 3 through the bottom surface 4f of the liquid accumulation portion 4. As a result, the drain water remaining in the liquid retention portion 4 can easily pass through the liquid passage 3 to the outflow port 1b. Therefore, most drainage can be drained more smoothly. In addition, as shown in Figure 6, in this embodiment, the liquid The bottom surface 4f of the retention portion 4 is inclined at an angle A4 with respect to the horizontal axis (in FIG. 6, the horizontal plane is indicated by the straight line Oy that appears when viewed in the extending direction of the liquid passage 3). The angle A4 can be appropriately set corresponding to the content and size of the storage tank 1. The angle A4 may be an angle of 0.5° to 5°, for example. If the angle A4 is less than 0.5°, the effect of convection for drainage will be reduced. In addition, when the angle A4 is 5° or more, the inclination will become too large. Therefore, if the drain cannot fully enter the outflow port 1b and the water overflows, the overflowing water will not flow well to the liquid retention part. 4.

In addition, in the present embodiment, as shown in FIG. 6, the bottom surfaces 4f of the two liquid retention portions 4 are inclined downward as they approach each other. In this case, if the lower ends of the bottom surfaces 4f of the two liquid storage portions 4 are directly connected, the liquid passage 3 can be a V groove with the directly connected portion of the two bottom surfaces as the bottom of the groove. Alternatively, if the lower ends of the bottom surfaces 4f of the two liquid storage portions 4 are connected through a plane, the liquid passage 3 may be a trapezoidal V groove with the plane as the bottom of the groove. Any one of the bottom surfaces 3f of the liquid passage 3 and the bottom surfaces 4f of the two liquid storage portions 4 are at the same height position.

Regarding the liquid passage 3 exemplified above, in this embodiment, the bottom surface 3f of the liquid passage 3 is located at a position lower than the bottom surface 4f of the two liquid retention portions 4. In this case, the drain water retained in the liquid retention portion 4 can easily flow into the liquid passage 3 through the bottom surface 4f of the liquid retention portion 4. Thereby, it is possible to more guide the drain flow to the outflow port 1b, and to drain more smoothly through the liquid passage 3. In this embodiment, as shown in FIG. 6, the two liquid retention portions 4 are inclined downward as they approach each other, and the lower ends of the bottom surfaces 4f of the two liquid retention portions 4 are connected by curved surfaces protruding downward. In this embodiment, the bottom surface 3f of the liquid passage 3 is constituted by this curved surface. As a result, as shown in FIG. 6, in this embodiment, the bottom surface 3f of the liquid passage 3 is positioned lower than the bottom surface 4f of the two liquid retention portions 4. In this way, if the bottom surface 3f of the liquid passage 3 is lowered, the drain can flow more smoothly to the outflow port 1b. Furthermore, as in the present embodiment, if the bottom surface 3f of the liquid passage 3 is formed with a curved surface, the drainage can be further allowed to flow smoothly through the outflow port 1b.

In addition, FIG. 7 is a cross-sectional view along the extending direction of the liquid passage 3 in the storage tank 1 according to this embodiment. As shown in FIG. 7, in this embodiment, the bottom surface 3f of the liquid passage 3 (more specifically, at least the deepest part of the bottom surface 3f) is inclined downward from the inflow port 1a to the outflow port 1b. In this embodiment, the bottom surface 3f of the liquid passage 3 is at an angle A3 relative to the horizontal The axis (in FIG. 7, the horizontal plane is indicated by the straight line Ox that appears when viewed in the width direction of the liquid passage 3). In detail, the bottom surface 3f of the liquid passage 3 has a straight portion 3f1 that is inclined at a fixed angle A3 from the outflow port 1a to the outflow port 1b, and is connected to the straight portion 3f1 and is adjacent to the outflow port 1b. The adjacent part 3f2 is constructed. In this embodiment, the abutting portion 3f2 is constituted by a curved surface protruding outward from the inside of the storage tank 1. In addition, the bottom surface 3f of the liquid passage 3 is preferably inclined (angle A3) to be 1/100 or more. In this case, the drain can be left in the storage tank 1 and the dirt formed by the originally dried drain can be removed from the storage tank 1.

Furthermore, in this embodiment, the bottom surface 4f of the liquid retention portion 4 is shown in FIG. 5, and when viewed from the bottom, it has a contour portion 4f2 that extends along the peripheral wall 2 of the storage tank 1 to form the contour of the liquid retention portion 4 . The portion other than the contour portion 4f2 of the bottom surface 4f of the liquid retention portion 4 is shaped as a flat portion 4f1 of the bottom surface 4f of the liquid retention portion 4. That is, in this embodiment, the bottom surface 4f of the liquid retention portion 4 is formed with a flat portion 4f1 and a contour portion 4f2. Furthermore, in this embodiment, as shown in FIG. 6, the contour portion 4f2 of the bottom surface 4f of the liquid retention portion 4 is connected to the inner surface 2f of the peripheral wall 2 when viewed in the extending direction of the contour portion 4f2, and extends from the storage tank 1. A curved surface convex from the inside to the outside. In this case, it is possible to prevent dirt from adhering to the inner surface 2f side of the peripheral wall 2 in the bottom surface 4f of the liquid accumulation portion 4. In addition, in the present embodiment, the curved surface is formed by connecting the inner surface 2f of the peripheral wall 2 and the bottom surface 4f (the flat surface part 4f1) of the liquid retention portion 4 with a curved surface having a radius of curvature r4. Moreover, in FIG. 6, although the peripheral wall 2 has exemplarily described that only the contour portion 4f2 corresponding to the side wall 2c is a curved surface, the contour portions 4f2 corresponding to other walls of the peripheral wall 2 are also the same.

As described above, according to the storage tank 1 related to this embodiment, it is possible to provide a storage tank 1 which can suppress the length of the liquid passage 3 and allow most of the drainage to be discharged quickly and smoothly.

In the foregoing, the exemplary embodiments of the present invention have been described, and various changes can be made within the scope of the patent application. For example, although the storage tank 1 can be integrally manufactured by resin injection molding, the manufacturing method of the storage tank 1 is not limited to injection molding. The storage tank 1 can be provided with a detachable cover that closes the opening formed at the upper end of the peripheral wall 2. In addition, the structure of the drainage system 100 is not limited to the structure of this embodiment. For example, although the appliance drain pipe 120 and the siphon drain pipe 130 are drain pipes in which each upstream part (horizontal pipe) and downstream part (vertical pipe) are integrated. However, the upstream part (horizontal drawing pipe) and the downstream part (vertical pipe) can be made into different drainage pipes, and the drainage pipes can be connected to each other to become the appliance drainage pipe 120 or the siphon drainage pipe 130 .

1‧‧‧Storage tank

1a‧‧‧Inlet

1b‧‧‧Outlet

1c‧‧‧Vent

2‧‧‧ Zhoubi

2a‧‧‧The first opposite wall

2b‧‧‧The second opposite wall

2c‧‧‧Wall

2d‧‧‧Guide Wall

2f‧‧‧Inside

3‧‧‧Liquid passage

3f‧‧‧The bottom of the liquid path

3f1‧‧‧The straight part of the bottom surface of the liquid passing path

3f2‧‧‧The adjacent part of the bottom surface of the liquid passage

4‧‧‧Liquid retention part

4f‧‧‧Bottom of liquid retention part

4f1‧‧‧The flat part of the bottom surface of the liquid retention part

4f2‧‧‧The contour part of the bottom surface of the liquid retention part

L3, L4‧‧‧Length

Claims (6)

A storage tank has an inflow port for letting liquid flow in and an outflow port for letting out the liquid, and a storage tank that can store the liquid flowing in from the inflow port in the inside, and has: a liquid passage path that connects the flow The inlet and the outflow port guide the liquid flowing in from the inflow port to the outflow port and extend in a straight line; and the liquid retention portion is located at each position on both sides of the liquid passing path sandwiched therebetween, and It is arranged at a position adjacent to the passage of the liquid to retain the liquid flowing in from the inflow port; the guide wall on the side of the inflow port in a plan view is downstream in the direction of drainage of the drainage, and faces closer to the The direction of the liquid passing path is inclined; the inflow port is formed on the downstream side of the guide wall on the side of the inflow port. For example, in the storage tank of item 1 of the scope of patent application, the length of the liquid passage in the extension direction of the liquid passage is shorter than the length of the liquid retention portion in the extension direction of the liquid passage. For example, the storage tank of item 1 or 2 of the scope of patent application, wherein the storage tank is arranged in various positions along the two sides of the floor of the building by sandwiching the passage of the liquid to arrange the liquid retention part in The floor. For example, the storage tank of item 1 or 2 of the scope of patent application, wherein the bottom surface of the liquid retention portion has a flat portion, and the flat portion, when viewed in the extending direction of the liquid passage, moves toward the liquid passage The downward slope is connected to the plane of the bottom surface of the liquid passage. Such as the storage tank of item 1 or 2 of the scope of patent application, wherein the bottom surface of the liquid passage is located at a lower position than the bottom surface of the liquid retention portion. For example, the storage tank of item 1 or 2 of the scope of the patent application, wherein the bottom surface of the liquid retention portion, when viewed from the bottom of the storage tank, has a peripheral wall extending along the outer shape of the storage tank to form the liquid The contour part of the contour of the stagnant portion, when viewed in the extending direction of the contour part, is from the inner side of the storage tank to the convex curved surface.

Images