CN102677755B

CN102677755B - Flush toilet for improving pollution discharge capacity

Info

Publication number: CN102677755B
Application number: CN201210160427.9A
Authority: CN
Inventors: 牛骁勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2014-03-05
Anticipated expiration: 2032-05-22
Also published as: CN102677755A

Abstract

The invention provides a flush toilet for improving pollution discharge capacity. The flush toilet comprises a water tank, a pedestal pan with an edge groove, and a drainage outlet, and is characterized in that one end of the edge groove is connected to an outlet of the water tank, and the other end of the edge groove is sealed; a plurality of drainage holes are formed below the edge groove; and an acute angle is formed between an axis of the water outlet direction of the drainage holes and a water flow direction when the water is discharged from the water tank. Moreover, the size of the drainage holes is gradually increased along with the water flow direction in the edge groove during drainage, and the sectional area of the edge groove is gradually reduced. By the flush toilet, the water flowing out of the edge groove can flow in the pedestal pan in the same rotating direction so as to form a vortex; and moreover, the water flow is uniformly distributed in the pedestal pan during flushing, and an effect of flushing dirt is improved.

Description

A kind of flush toilet that improves blowdown power

Technical field

The present invention relates to a kind of flush toilet, specifically, relate to a kind of flush toilet that can improve filth-discharging effect while washing by water.

Background technology

At present, the flush toilet conventionally adopting comprises a water tank, a water closet with edge groove, and edge groove is connected on water tank, and the sewage draining exit under water closet; The two ends of edge groove are connected with water tank, and the below of edge groove has some drain holes.For example CN201089968Y discloses a kind of flush toilet, this flush toilet water closet upper front end is provided with a groove, in groove, be installed with a rubber balloon, seat board front end bottom is correspondingly provided with a projection, can allow user when each use, on water closet internal chamber wall, there is a small amount of water moistening, be difficult for enclosing dirt.But the opening direction of the several drain holes on this kind of flush toilet is vertical with water (flow) direction in edge groove, and drain hole is generally the circular port that diameter is identical, and this design can be brought following some deficiency:

(1) flushing water is when entering into drain hole by edge groove, and the motion aspect of current need to instantaneously change into and moving both vertically from horizontal movement, can produce a large amount of hydraulic losses, has reduced the kinetic energy of current, causes scouring effect to reduce.

(2) because the diameter of drain hole is identical, so, larger near the water yield in some drain holes of water tank, and along with the operation of current, arrival away from water tank place after, the water yield in drain hole is less, has caused in rinsing the process of dirt the current skewness in water closet, larger near discharging quantity of water on the internal chamber wall of water tank, less away from the discharging quantity of water on the internal chamber wall of water tank, can cause the developing result of dirt on the internal chamber wall away from water tank poorly, can affect filth-discharging effect.

(3) in the process of bath, flushing water can continuously outflow from drain hole, and again because the internal diameter of edge slot cross-section is all evenly to equate along water (flow) direction, water (flow) direction in edge groove when bath, discharge on same cross section can constantly reduce, so the flow velocity of current also can reduce.Like this, just cause the water flow velocity in the edge groove drain hole away from water tank to reduce, affected the developing result of that position.

Summary of the invention

For above the problems of the prior art, the invention provides a kind of flush toilet that can improve blowdown power.The technical scheme adopting is as follows:

A kind of flush toilet, comprise water tank, the water closet with edge groove, sewage draining exit, it is characterized in that: one end of edge groove is connected in water tank outlet, the other end is sealing, there are a plurality of drain holes the below of edge groove, and the water (flow) direction when water outlet azimuth axis of drain hole and cistern water-discharging in edge groove is acute angle.

Adopt the drain hole of this shape, during each flushing, current can be incline direction along drain hole and flow toward bottom, water (flow) direction during due to the water outlet azimuth axis of drain hole and cistern water-discharging in edge groove is acute angle, rather than traditional vertical direction, so can reduce the hydraulic loss (Sun Wence in flow process, engineering fluid mechanics [M], Dalian, publishing house of Dalian University of Technology, 1995:143-146).In addition, after adopting this kind of layout, flushing water fails to be convened for lack of a quorum and in water closet, is the rotation towards same direction, has formed vortex, more easily takes away dirt, has further improved the effect of rinsing dirt.

As a preferred embodiment of the present invention, above-mentioned acute angle is 30 °～60 °.

In order to solve flushing water problem pockety in water closet, as a preferred version of the present invention, along the water (flow) direction of edge groove, the size of above-mentioned a plurality of drain holes increases gradually.So just avoid having occurred that a large amount of clear water flow out from the drain hole near water tank exit, clear water can continue along edge concentrated flow moving, from other drain hole, flows out, and makes the flushing water in water closet distribute more even.

As another preferred version of the present invention, the water (flow) direction of edge groove during along draining, the sectional area of above-mentioned edge groove reduces gradually.In order to reach this technical characterictic, can adopt the wall thickness of the upper wall surface of edge groove or two medial surfaces is reached along the ever-increasing means of bath water (flow) direction.According to fluid mechanics principle, flow velocity when pipeline inner fluid flows and the relation of flow are:

Q=U·S

Wherein, Q is flow, and U is flow velocity, S section area.

In flushing process, although there is partial flushing water the continuous outfall along edge groove to flow out, cause flow to reduce, but because section area has diminished, still can keep certain flow rate of water flow, make the current in those drain holes away from water outlet of water tank still there is certain flow velocity, guaranteed that the water velocity of each drain hole water outlet is more even.

As another preferred version of the present invention, the shape of drain hole can be the shapes such as star, petal, polygon.According to Hydrodynamics Theory, in noncircular cross section straight channel, exist Secondary Flow phenomenon, because the generation of Secondary Flow has changed the distribution of the shearing stress of VELOCITY DISTRIBUTION on cross section and wall and angular domain, make flow region become very complicated, for flowing and heat transfer has great impact.(Guo second place, Bi Qincheng, what Yongqing, the experimental study [J] of Secondary Flow phenomenon in square sectional straight channel, XI AN JIAOTONG UNIVERSITY Subject Index, 2009,43 (7): 83-87), in addition, the quality transmission that Secondary Flow can enhance fluid and can increase frictional force, takes away the effect of dirt while improving bath further.(profound containing brightness, Cheng Jie, Liu Jianwen etc., Secondary Flow Theory [M], Changsha, publishing house of Central South University, 2006:22).Therefore, in improvement project, owing to having adopted non-circular duct, when current pass through, can make current produce the turbulent extent of Secondary Flow, raising current, it has also further obtained enhancing for the flushing action of dirt.

To sum up, the flush toilet of raising blowdown power provided by the invention has advantages of as follows:

(1) water (flow) direction during due to the water outlet azimuth axis of drain hole and cistern water-discharging in edge groove is acute angle, during each flushing, current can be incline direction along drain hole and flow toward bottom, water (flow) direction during due to the water outlet azimuth axis of drain hole and cistern water-discharging in edge groove is acute angle, rather than traditional vertical direction, so can reduce the hydraulic loss in flow process.In addition, after adopting this kind of layout, flushing water fails to be convened for lack of a quorum and in water closet, is the rotation towards same direction, has formed vortex, more easily takes away dirt, has further improved the effect of rinsing dirt.

(2) due to the water (flow) direction along edge groove, the size of a plurality of drain holes increases gradually, and the sectional area of edge groove reduces gradually, while making to rinse current in water closet flow and velocity flow profile more even.

(3) adopt the drain hole in non-circular duct, can make flushing water current produce the turbulent extent of Secondary Flow, raising current, further improve developing result.

Accompanying drawing explanation

Fig. 1 is the top view of flush toilet provided by the invention.The 1st, water tank outlet, the 2nd, edge groove, the 3rd, drain hole, the 4th, sewage draining exit, the 5th, sealing, the 6th, water tank, the 7th, water closet;

Fig. 2 is the cross-sectional view of Fig. 1 section line A-A;

Fig. 3 is the cross-sectional view of the hatching A-A of a kind of improved flush toilet provided by the invention edge groove, the 8th, and the upper wall surface of edge groove;

Fig. 4 is the top view of a kind of improved flush toilet provided by the invention;

Fig. 5 is the top view of the improved flush toilet of another kind provided by the invention.

The specific embodiment

Below by the mode of embodiment, technical scheme of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.

Embodiment 1

As depicted in figs. 1 and 2, a kind of flush toilet, comprise water tank 6, a water closet 7 with edge groove 2, sewage draining exit 4, is characterized in that: one end of edge groove 2 is connected in water tank outlet 1, and the other end is sealing 5, there are a plurality of drain holes 3 below of edge groove 2, and in the edge groove 2 when the water outlet azimuth axis of drain hole 3 and water tank 6 draining, water (flow) direction is acute angle.

During use, first current enter into edge groove 2 along water tank outlet 1, the water (flow) direction of the edge groove 2 during due to the water outlet azimuth axis of drain hole 3 and water tank 6 draining is acute angle, and current can, along the oblique lower outflow of drain hole 3, can reduce the hydraulic loss in flow process.In addition, after adopting this kind of layout, flushing water fails to be convened for lack of a quorum in water closet 7 towards the rotation of same direction, has formed vortex, has further improved the effect of rinsing dirt.

Embodiment 2

As shown in Figure 3, the embodiment of preferred version of the present invention, the thickness of the upper wall surface 8 of edge groove is along the water (flow) direction progressive additive in when bath, this makes to reduce gradually along water (flow) direction along the section area of limit groove 2, although the flow of bath can constantly diminish along water (flow) direction, but because section area has also reduced, so compare with the edge groove of uniform section area, scheme in the present embodiment can correspondingly improve the flow velocity of current, has guaranteed that the water velocity flowing out in drain hole 3 is more even.

Embodiment 3

As shown in Figure 4, the embodiment of preferred version of the present invention, the size of drain hole 3 water (flow) direction in edge groove 2 when along draining is and becomes gradually large, near water tank, exports drain hole 3 sizes at 1 place less, larger near drain hole 3 sizes at sealing 5 places.

Like this, avoided occurring that a large amount of clear water flow out from export 1 drain hole 3 near water tank, clear water can continue to flow along edge groove 2, from other drain hole 3, flows out, and makes the flushing water in water closet 7 distribute more even.

Embodiment 4

As shown in Figure 5, the embodiment of preferred version of the present invention, the shape of drain hole 3 is stars.Owing to having adopted non-circular duct, when current pass through, drain hole 3 can allow the current of bath form Secondary Flow, improves the turbulent extent of current, and it has also further obtained enhancing for the flushing action of dirt.

Claims

1. a flush toilet, comprise water tank (6), the water closet (7) with edge groove (2), sewage draining exit (4), it is characterized in that: one end of edge groove (2) is connected in water tank outlet (1), the other end is sealing (5), there are a plurality of drain holes (3) below of edge groove (2), and the angle of the water (flow) direction in the edge groove (2) when the water outlet azimuth axis of drain hole (3) and water tank (6) draining is acute angle; Described acute angle is 30 °; The water (flow) direction of edge groove (2) during along draining, the size of described a plurality of drain holes (3) increases gradually; The water (flow) direction of edge groove (2) during along draining, the sectional area of described edge groove (2) reduces gradually; Described drain hole (3) be shaped as star.