CN217105422U - Drainage device and drainage system - Google Patents

Abstract

The embodiment of the application provides a drainage device and a drainage system. The drainage device comprises a first water inlet end, a second water inlet end, a flash tank and a water outlet end. The first water inlet end is configured to be a water inlet in the vertical direction. The second water inlet end is configured as a water inlet in the horizontal direction. The flash vessel includes main part and water conservancy diversion portion, the main part is the tubulose, the top and the first end connection of intaking of main part, the lateral wall and the water conservancy diversion portion intercommunication formation fluid passage of main part, water conservancy diversion portion and second are intake and are held and be connected, water conservancy diversion portion includes the deflector, guide way and slope water conservancy diversion section, the deflector is located the one side of being close to the second end of intaking, the guide way is connected with the mode of circular arc transition with the deflector, slope water conservancy diversion section is connected with the mode of circular arc transition with the guide way, slope water conservancy diversion section configuration is for guiding rivers to flow along the inner wall of main part, the second is intake and is held the intaking and is passed through the deflector in proper order, guide way and slope water conservancy diversion section back flow along the inner wall of main part. The water outlet end is positioned at the bottom of the main body part.

Description

Drainage device and drainage system

Technical Field

The application relates to the technical field of pipelines, in particular to a drainage device and a drainage system.

Background

This section provides background information related to the present application and is not necessarily prior art.

The extensive application of drain pipe fitting is in various buildings, among the correlation technique, the main pipeline of drainage comprises many drain pipes, the gravity drainage is applied to the drainage riser, in drainage process, water among the drain pipe of horizontal direction converges to the drainage riser, in order to discharge sewage, rivers striking each other in each pipeline of department of converging, can influence the velocity of flow of water, and then reduce drainage pipe's drainage ability, and rivers striking each other can produce great vibrations and noise, this seriously influences drainage pipe's life-span, when it is applied to in the buildings such as residential building, the noise of production can seriously influence resident's life. Therefore, it is a current consideration to design a low vibration, low noise drain line.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drainage device and drainage system to solve among the prior art drainage pipe vibrations and too big problem of noise. In order to achieve the above purpose, the present application provides the following technical solutions:

the embodiment of the first aspect of the present application provides a drainage device, which is applied to a drainage pipeline and comprises a first water inlet end, a second water inlet end, a flash tank and a water outlet end. The first water inlet end is configured to be a water inlet in the vertical direction. The second water inlet end is configured as a water inlet in the horizontal direction. The flash tank includes main part and water conservancy diversion portion, the main part is the tubulose, the top and the first end connection of intaking of main part, the lateral wall and the water conservancy diversion portion intercommunication formation fluid passage of main part, water conservancy diversion portion and second are intake the end and are connected, water conservancy diversion portion includes the deflector, guide way and slope water conservancy diversion section, the deflector is located the one side of being close to the second end of intaking, the guide way is connected with the mode of circular arc transition with the deflector, slope water conservancy diversion section is connected with the guide way with circular arc transition, slope water conservancy diversion section configuration is for guiding the rivers to flow along the inner wall of main part, the intaking of second end is in proper order through the deflector, the guide way flows along the inner wall of main part behind the slope water conservancy diversion section. The water outlet end is positioned at the bottom of the main body part.

According to the drainage device in the embodiment of the application, the water to be drained can enter from the first water inlet end or the second water inlet end and then flow out from the water outlet end. The drainage device also comprises an expansion part, the side wall of the main body part of the expansion part is connected with a flow guide part, one end of the flow guide part is connected with a second water inlet end, the other end of the flow guide part is connected with the main body part, therefore, water entering from the two water inlet ends can flow into the main body part under the guidance of the flow guide part, specifically, the water to be drained can enter from the second water inlet end and flow to the main body part through the flow guide part, the water sequentially flows through the guide plate, the guide groove and the inclined flow guide section in the flow guide part, as the guide groove is respectively connected with the guide plate and the inclined flow guide section in an arc transition mode, the water can flow along the inner wall of the main body part in the flowing process, when the water entering from the second water inlet end flows into the main body part, the inclined flow guide section can guide the water to flow along the inner wall of the main body part, thereby avoiding the collision of the water entering from the first water inlet end and the water entering from the second water inlet end during the flow convergence, therefore, the vibration and noise generated by the impact can be reduced, and the service life of the drainage pipeline can be prolonged.

In addition, according to the embodiment of the application, the following additional technical features can be provided:

in some embodiments of the present application, a side of the guide groove, which is away from the guide plate, is connected to the main body portion and is formed with a blocking portion.

In some embodiments of the present application, the second water inlet end is in a tubular structure, the guide plate and the second water inlet end have an axis angle of 40 ° to 50 °, and the inclined diversion section and the main body have an axis angle of 35 ° to 45 °.

In some embodiments of the present application, the inclined flow guide section protrudes from the main body portion, and a maximum dimension of a plane where an inner wall of the inclined flow guide section to an axis of the second water inlet end is located is greater than a dimension of a radius of the main body portion and is 10mm to 15 mm.

In some embodiments of the present application, the drainage device further includes a first diversion ring, the first diversion ring is located inside the main body portion, and the first diversion ring is connected with the first water inlet end, the first diversion ring is close to the inner diameter of the first water inlet end is greater than the inner diameter of the first diversion ring away from the first water inlet end.

In some embodiments of the present application, an area of a cross-section defined by an inner wall of the main body portion is 1.5 to 2.15 times an area of a cross-section defined by an inner wall of the first deflector ring, and a dimension of the main body portion in an axial direction is 150 to 170 mm.

In some embodiments of the present application, the drainage device further includes a tapered tube, one end of the tapered tube is connected to the bottom of the main body portion, the other end of the tapered tube is connected to the water outlet end, and the inner diameter of the tapered tube close to the main body portion is greater than the inner diameter of the tapered tube close to the water outlet end.

In some embodiments of the present application, the drainage device further includes a second flow guiding ring, one end of the second flow guiding ring is connected to the tapered pipe, the other end of the second flow guiding ring is connected to the water outlet end, and the inner diameter of the second flow guiding ring near the tapered pipe is larger than the inner diameter of the second flow guiding ring near the water outlet end.

In some embodiments of the present application, the included angle of the cross section of the tapered tube is 18 ° to 20 °.

Embodiments of the second aspect of the present application propose a drainage system comprising a drainage device as in any of the embodiments of the first aspect.

According to the drainage system in the embodiment of the present application, since the drainage device in any one of the embodiments of the first aspect is provided, the drainage system also has the advantages of any one of the embodiments of the first aspect.

In some embodiments of this application, drainage system still includes inlet tube and outlet pipe, the inlet tube with the first end of intaking or the second end connection of intaking, the outlet pipe with go out the water end and connect, drainage system still includes first water conservancy diversion ring sum second water conservancy diversion ring, first water conservancy diversion ring is located the inside of main part, just first water conservancy diversion ring with first end connection of intaking, first water conservancy diversion ring is close to the internal diameter of intaking the end is greater than the internal diameter of inlet tube, the one end of second water conservancy diversion ring with the main part is connected, the other end of second water conservancy diversion ring with go out the water end and connect, second water conservancy diversion ring is close to the internal diameter that goes out the water end is less than or equal to the internal diameter of outlet pipe.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Like reference numerals refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural view (front view) of a drainage device in an embodiment of the present application;

FIG. 2 is a schematic structural view (rear view) of a drainage device in an embodiment of the present application;

FIG. 3 is a schematic structural view (top view) of a drainage device in an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic structural view (left side view) of a drainage device in an embodiment of the present application;

FIG. 6 is a cross-sectional view taken along line E-E of FIG. 5;

FIG. 7 is a sectional view taken along line G-G of FIG. 3;

FIG. 8 is a cross-sectional view of a deflector of the drainage apparatus in an embodiment of the present application;

FIG. 9 is a cross-sectional view of another perspective of a deflector of the drain in an embodiment of the present application;

FIG. 10 is a schematic view of the direction of water flow in the drainage device of the embodiment of the present application;

fig. 11 is a schematic view of the structure of a drainage system in the embodiment of the present application.

The reference symbols in the drawings denote the following:

10-a first drain pipe; 20-a second drain pipe; 30-water outlet pipe; 40-trap water; 41-water level line;

110-a first water inlet end; 120-a second water inlet end; 130-water outlet end;

200-a flash tank; 210-a body portion; 220-a flow guide part; 221-a guide plate; 222-a guide slot; 2221-blocking section; 223-inclined flow guide section;

300-a conical tube;

410-a first flow guide ring; 420-a second deflector ring;

510-direction of water flow at the second water inlet end; 520-direction of water flow at first water inlet end.

Detailed Description

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is also obvious for a person skilled in the art to obtain other embodiments according to the drawings.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the description herein are intended to be within the scope of the present disclosure.

As shown in fig. 1 to 9, the embodiment of the first aspect of the present application provides a drainage device applied to a drainage pipeline, the drainage device includes a first water inlet end 110, a second water inlet end 120, a flash tank 200, and a water outlet end 130. The first water inlet end 110 is configured as a vertically oriented water inlet. The second water inlet end 120 is configured as a horizontally oriented water inlet. The flash tank 200 includes a main body 210 and a flow guiding portion 220, the main body 210 is tubular, the top of the main body 210 is connected to the first water inlet end 110, the sidewall of the main body 210 is communicated with the flow guiding portion 220 to form a fluid channel, the flow guiding portion 220 is connected to the second water inlet end 120, the flow guiding portion 220 includes a guide plate 221, a guide groove 222 and an inclined flow guiding section 223, the guide plate 221 is located at one side close to the second water inlet end 120, the guide groove 222 is connected to the guide plate 221 in an arc transition manner, the inclined flow guiding section 223 is connected to the guide groove 222 in an arc transition manner, the inclined flow guiding section 223 is configured to guide water flow to flow along the inner wall of the main body 210, and water inlet of the second water inlet end 120 sequentially flows along the inner wall of the main body 210 after passing through the guide plate 221, the guide groove 222 and the inclined flow guiding section 223. The water outlet 130 is located at the bottom of the main body 210.

According to the drainage device in the embodiment of the present application, the water to be drained can enter from the first water inlet end 110 or the second water inlet end 120 and then flow out from the water outlet end 130. The drainage device further comprises an expansion part, wherein a flow guide part 220 is connected to the side wall of the main body part 210 of the expansion part, one end of the flow guide part 220 is connected with the second water inlet end 120, the other end of the flow guide part 220 is connected with the main body part 210, therefore, water entering from the two water inlet ends can flow into the main body part 210 under the guidance of the flow guide part 220, specifically, water to be drained can enter from the second water inlet end 120 and flow to the main body part 210 through the flow guide part 220, the water sequentially flows through the guide plate 221, the guide groove 222 and the inclined flow guide section 223 in the flow guide part 220, the guide groove 222 is respectively connected with the guide plate 221 and the inclined flow guide section 223 in an arc transition mode, therefore, the water can flow against the inner wall of the drainage device in the flowing process, when the water entering from the second water inlet end 120 flows into the main body part 210, the inclined flow guide section 223 can guide the water to flow along the inner wall of the main body part 210, and therefore, the water entering from the first water inlet end 110 and the second water inlet end 120 can be prevented from converging The water pipe is impacted, so that the vibration and noise generated by the impact can be reduced, and the service life of the water pipe can be prolonged.

As shown in fig. 4, in some embodiments of the present application, a side of the guide groove 222 away from the guide plate 221 is connected to the body portion 210 and formed with a blocking portion 2221. In this embodiment, the water flowing in from the second water inlet end 120 is guided by the guide plate 221 and then flows into the guide groove 222, and when the water flows through the guide groove 222, since the blocking portion 2221 is disposed at the position where the guide groove 222 is connected to the main body 210, the water flow is blocked by the blocking portion 2221, that is, the water drops first and rises during the flowing process, so that the inertia force of the water flow can be reduced, the speed of the water flow is reduced, the water flow is finally guided to the inclined flow guiding section 223, and finally the water flow is guided to flow by being attached to the inner wall of the main body 210.

In some embodiments of the present application, the second water inlet end 120 is in a tubular shape, the angle between the guide plate 221 and the axis of the second water inlet end 120 is 40 ° to 50 °, and the angle between the inclined flow guide section 223 and the axis of the main body 210 is 35 ° to 45 °. Referring to fig. 8, which is a top view of the drainage device, in fig. 8, an included angle a between the guide plate 221 and the axis of the second water inlet end 120 is 40 ° to 50 °. Referring to fig. 1, a schematic structural diagram of the drainage device is shown, in fig. 1, an included angle B between the inclined flow guide section 223 and the axis of the main body portion 210 is 35 ° to 45 °. In this embodiment, the water to be discharged flows into the guiding portion 220 from the second water inlet end 120, and flows into the guiding groove 222 under the guiding of the guiding plate 221, and the axial included angle a between the guiding plate 221 and the second water inlet end 120 is set to 40 ° to 50 °, so that when the water flows, the water can better closely cling to the inner wall of the guiding plate 221 to flow, thereby avoiding the water flow from being too fast or too slow, and changing the direction of the water flow to make the water flow along the preset spiral line. Referring to fig. 10, a schematic flow direction of water flowing from the second water inlet end 120 in the drainage device is shown. When the wastewater to be discharged flows to the inclined flow guide section 223 from the guide groove 222, because the water flows through the inclined flow guide section 223 at a certain inclination angle, when the included angle B between the inclined flow guide section 223 and the axis of the main body 210 is designed to be 35 ° to 45 °, the water flows along the inclined angle, so that the water flowing into the main body 210 moves along the spiral moving track.

In some embodiments of the present application, the inclined flow guiding section 223 protrudes from the main body 210, and a maximum dimension of a plane where an axis of the inclined flow guiding section 223 to the second water inlet end 120 is located is 10mm to 15mm larger than a radius of the main body 210. Referring to fig. 3 and 5, fig. 3 is a top view of the drainage device of the present application, in the drawings, the maximum dimension of the plane from the inner wall of the inclined flow guiding section 223 to the axis of the second water inlet end 120 is 10mm to 15mm larger than the radius dimension H of the main body 210, so that water flowing into the inclined flow guiding section 223 from the guiding groove 222 can keep a certain inclined angle to flow, and the water flow is prevented from directly impacting on the inner wall of the main body 210. In some specific embodiments, the cross-sectional area of the angled flow guide section 223 may be greater than 3925mm ² This enables the drainage apparatus to have a large drainage capacity.

As shown in fig. 4, in some embodiments of the present application, the drainage device further includes a first guide ring 410, the first guide ring 410 is located inside the main body portion 210, and the first guide ring 410 is connected to the first water inlet end 110, and an inner diameter D1 of the first guide ring 410 near the first water inlet end 110 is greater than an inner diameter D2 of the first guide ring 410 far from the first water inlet end 110. In this embodiment, the inner diameter D1 of the first guide ring 410 close to the first water inlet end 110 is larger than the inner diameter D2 of the first guide ring 410 away from the first water inlet end 110, so that the water flowing from the first water inlet end 110 can be collected to the middle, the water entering from the first water inlet end 110 and the water entering from the second water inlet end 120 are prevented from colliding when being collected, and the drainage device further has the advantages of low vibration and low noise.

In some embodiments of the present application, an area of a cross-section surrounded by an inner wall of the main body portion 210 is 1.5 times to 2.15 times an area of a cross-section surrounded by an inner wall of the first deflector ring 410, and a dimension of the main body portion 210 in an axial direction is 150mm to 170 mm. In the embodiment, the inner size of the main body 210 is larger than that of the first deflector ring 410, so that the volume of the expansion portion can be further increased, and the water flowing in from the second water inlet end 120 can form a rotational flow after passing through the guide plate 221, the guide groove 222 and the inclined deflector section 223, and flow along the inner wall of the main body 210 with a spiral moving track, it can be understood that an identical drainage device can be continuously arranged at the bottom of the drainage device, so that the water flowing in from the first drainage device will flow into the first water inlet end 110 of the second drainage device, and the water flowing in from the first water inlet end 110 will also be a rotational flow, thereby forming an unobstructed air column at the middle position of the drainage device, and in this water flow state, the falling speed of the water flow is reduced under the effect of the frictional resistance and the rotational centrifugal force of the pipe wall, forming a uniform flow, which is beneficial to improving the drainage performance of the pipe, the pressure fluctuation is reduced, the water seal is not damaged, the odor return of the toilet floor drain is prevented, the water flow noise is reduced, and the drainage capacity is improved.

In some embodiments of the present application, the drainage device further comprises a tapered tube 300, one end of the tapered tube 300 is connected to the bottom of the main body 210, the other end of the tapered tube 300 is connected to the water outlet end 130, and the inner diameter of the tapered tube 300 near the main body 210 is larger than the inner diameter of the tapered tube 300 near the water outlet end 130. In this embodiment, the water flowing in from the second water inlet end 120 forms a rotational flow along the inner wall of the flash tank 200, and the tapered tube 300 can guide the water to flow slowly inwards, and finally form a confluence with the water flowing in from the first water inlet end 110 at the bottom of the tapered tube 300. The tapered pipe 300 enables water flowing in from the second water inlet end 120 to closely adhere to the inner wall of the drainage device and flow, thereby preventing water entering from different water inlets from violently colliding to generate vibration and noise, and compared with the drainage pipe without the tapered pipe 300 in the related art, the drainage device in the embodiment can further reduce vibration and noise generated during the use of the pipe.

Referring to fig. 4, in some embodiments of the present application, the drainage device further includes a second deflector ring 420, one end of the second deflector ring 420 is connected to the tapered tube 300, the other end of the second deflector ring 420 is connected to the water outlet end 130, and an inner diameter D3 of the second deflector ring 420 near the tapered tube 300 is larger than an inner diameter D4 of the second deflector ring 420 near the water outlet end 130. In this embodiment, the water flowing from the first water inlet end 110 and the second water inlet end 120 merges in the conical tube 300 and continues to flow to the second deflector ring 420, and since the inner diameter D3 of the second deflector ring 420 close to the conical tube 300 is greater than the inner diameter D4 of the second deflector ring 420 close to the water outlet end 130, the second deflector ring 420 can guide the merged water to flow further towards the inside.

In some embodiments of the present application, the included angle of the cross section of tapered tube 300 is 18 ° to 20 °. In this embodiment, when the included angle of the cross section of the conical tube 300 is 18 ° to 20 °, the spiral water flow can be guided well, and the impact of the pipeline caused by the direct falling of the water flow is avoided.

In some embodiments, the inner diameter of the tapered tube 300 near the flash tank 200 is greater than the inner diameter of the flash tank by 0.1mm to 0.5mm, thereby preventing the water from flowing into the flash tank 200 with a larger step and causing a water flow collision.

Embodiments of a second aspect of the present application provide a drainage system. The drainage system comprises the drainage device of any embodiment of the first aspect.

According to the drainage system in the embodiment of the present application, since the drainage device in any embodiment of the first aspect is included, the drainage system also has the advantages of any embodiment of the first aspect. Specifically, water to be discharged can enter from the second water inlet end 120 and flow to the main body 210 through the flow guide part 220, the water flows through the guide plate 221, the guide groove 222 and the inclined flow guide section 223 in sequence in the flow guide part 220, and the guide groove 222 is connected with the guide plate 221 and the inclined flow guide section 223 in an arc transition manner, so that the water can flow along the inner wall of the drainage device in the flowing process, when the water entering from the second water inlet end 120 flows into the main body 210, the inclined flow guide section 223 can guide the water to flow along the inner wall of the main body 210, so that the water entering from the first water inlet end 110 and the water entering from the second water inlet end 120 can be prevented from colliding during confluence, vibration and noise generated by collision can be reduced, and the service life of the drainage pipeline can be prolonged.

In some embodiments of the present application, the drainage system further includes a water inlet pipe and a water outlet pipe 30, the water inlet pipe is connected to the first water inlet end 110 or the second water inlet end 120, the water outlet pipe 30 is connected to the water outlet end 130, the drainage system further includes a first guide ring 410 and a second guide ring 420, the first guide ring 410 is located inside the main body portion 210, the first guide ring 410 is connected to the first water inlet end 110, an inner diameter of the first guide ring 410 near the water inlet end is larger than an inner diameter of the water inlet pipe, one end of the second guide ring 420 is connected to the main body portion 210, the other end of the second guide ring 420 is connected to the water outlet end 130, and an inner diameter of the second guide ring 420 near the water outlet end 130 is smaller than or equal to an inner diameter of the water outlet pipe 30.

As shown in fig. 11, the drainage system in this embodiment may be provided with a plurality of drainage devices in the first aspect, and the first water inlet end 110 of the drainage device may be connected with the water outlet of another drainage device or with a drainage stand pipe. In the example of fig. 11, the first inlet end 110 of the drainage device is connected to the first drainage pipe 10, the second inlet end 120 of the drainage device is connected to the second drainage pipe 20, the outlet end 130 of the drainage device is connected to the outlet pipe 30, and another similar drainage device can be connected to the top of the first drainage pipe 10.

Fig. 11 shows the water flow direction 510 of the second water inlet end 120 and the water flow direction 520 of the first water inlet end 110, such that when the drainage system is used for gravity drainage, the top water flow can form a spiral film-shaped water flow, in which the falling speed of the water flow is reduced by the inner wall friction resistance and the rotating centrifugal force, when the water flow enters the drainage device, the water flow can be guided by the first guide ring 410 and fall to the tapered pipe 300, and the water flowing in from the second drainage pipe 20 is guided by the guide portion 220 of the drainage device to form a rotational flow, and then forms a rotational flow through the tapered pipe 300, and finally is guided to the water outlet pipe 30 by the second guide ring 420.

In addition, a trap 40 may be provided at an end of the second discharge pipe 20 remote from the drainage means, and fig. 11 shows a water storage level line 41, which can prevent the bad smell of the toilet when it is applied to the toilet. In the related technology, the vertical drainage pipe is of a straight pipe-shaped structure, the bottom of the vertical drainage pipe is provided with a large step, water flow does not form rotational flow, the falling speed of the water flow is high, the thickness of a water film on the pipe wall is too large or the water flow is influenced by the structure to form a central water mass which falls in the pipe, the mass plug-shaped water flow falling in the pipe is formed, the pressure fluctuation is severe, and therefore the water seal of a toilet is damaged and the toilet returns odor. When the drainage system in the embodiment is applied, the falling speed of water flow is reduced under the action of inner wall friction resistance and rotating centrifugal force, so that the water seal damage of a toilet caused by severe pressure fluctuation in a pipeline can be avoided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments of the present application are described in a related manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only for the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (11)

1. A drain device for a drainage pipeline, the drain device comprising:

a first water inlet end configured as a vertical water inlet;

a second water inlet end configured as a horizontal water inlet;

the flash tank comprises a main body part and a flow guide part, wherein the main body part is tubular, the top of the main body part is connected with the first water inlet end, the side wall of the main body part is communicated with the flow guide part to form a fluid channel, the flow guide part is connected with the second water inlet end, the flow guide part comprises a guide plate, a guide groove and an inclined flow guide section, the guide plate is positioned on one side close to the second water inlet end, the guide groove is connected with the guide plate in an arc transition mode, the inclined flow guide section is connected with the guide groove in an arc transition mode, the inclined flow guide section is configured to guide water flow to flow along the inner wall of the main body part, and water inlet of the second water inlet end sequentially flows along the inner wall of the main body part after passing through the guide plate, the guide groove and the inclined flow guide section;

and the water outlet end is positioned at the bottom of the main body part.

2. The drainage apparatus of claim 1, wherein a side of the guide groove remote from the guide plate is connected to the body portion and is formed with a blocking portion.

3. The drainage device of claim 1, wherein the second water inlet end is tubular in shape, the angle between the guide plate and the axis of the second water inlet end is 40 ° to 50 °, and the angle between the inclined flow guide section and the axis of the main body is 35 ° to 45 °.

4. The drainage device of claim 3, wherein the inclined flow guide section protrudes from the main body part, and the maximum dimension from the inner wall of the inclined flow guide section to the plane where the axis of the second water inlet end is located is 10mm to 15mm larger than the radius of the main body part.

5. The drainage device of claim 1, further comprising a first deflector ring located inside the main body portion and connected to the first water inlet end, wherein an inner diameter of the first deflector ring near the first water inlet end is larger than an inner diameter of the first deflector ring away from the first water inlet end.

6. The drain device according to claim 5, wherein the area of the cross section defined by the inner wall of the main body portion is 1.5 to 2.15 times the area of the cross section defined by the inner wall of the first deflector ring, and the main body portion has a dimension in the axial direction of 150 to 170 mm.

7. The drain of claim 1, further comprising a tapered tube, wherein one end of the tapered tube is connected to the bottom of the body portion, the other end of the tapered tube is connected to the outlet end, and the inner diameter of the tapered tube near the body portion is larger than the inner diameter of the tapered tube near the outlet end.

8. The drain of claim 7, further comprising a second deflector ring, wherein one end of the second deflector ring is connected to the tapered tube, the other end of the second deflector ring is connected to the water outlet end, and the inner diameter of the second deflector ring near the tapered tube is larger than the inner diameter of the second deflector ring near the water outlet end.

9. The drain of claim 7, wherein the tapered tube has an included angle of 18 ° to 20 ° in cross section.

10. A drainage system comprising a drainage apparatus according to any one of claims 1 to 9.

11. The drainage system according to claim 10, further comprising a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is connected to the first water inlet end or the second water inlet end, the water outlet pipe is connected to the water outlet end, the drainage system further comprises a first flow guide ring and a second flow guide ring, the first flow guide ring is located inside the main body portion and connected to the first water inlet end, the inner diameter of the first flow guide ring close to the water inlet end is larger than the inner diameter of the water inlet pipe, one end of the second flow guide ring is connected to the water outlet pipe, the other end of the second flow guide ring is connected to the water outlet end, and the inner diameter of the second flow guide ring close to the water outlet end is smaller than or equal to the inner diameter of the water outlet end.

Images