CN2937690Y

CN2937690Y - Water intake valve with protection cover

Info

Publication number: CN2937690Y
Application number: CN 200620057957
Authority: CN
Inventors: 黄永泉
Original assignee: BST(ZHONGSHAN) PLUMBING Inc
Current assignee: BST(ZHONGSHAN) PLUMBING Inc
Priority date: 2006-04-16
Filing date: 2006-04-16
Publication date: 2007-08-22
Anticipated expiration: 2016-04-16

Abstract

An inlet valve with a protective sleeve, including an inlet valve body and an upper cover clipped together with the inlet valve body; a guide pipe and a penstock are covered and arranged on the inlet valve body; a sealing rubber gasket is arranged between the upper part of the inlet valve body and the guide pipe; the space of the upper cover and the sealing rubber gasket forms a back-pressure chamber; a floating barrel with a floating barrel cavity is arranged on the outer wall of the inlet valve body, a bobber is arranged in the floating barrel, and the bobber and the floating barrel are connected with one end of a lifting rod arranged on a rotor shaft of the upper cover by a lifting control; the another end of the lifting rod can contact with a back-pressure hole arranged on the upper cover; a transition arc is arranged on the sealing rubber gasket, a protective sleeve used to protect the sealing rubber gasket is arranged between the sealing rubber gasket and the guide pipe; an arc groove matched with the transition arc is arranged in the protective sleeve; a boss under the sealing rubber gasket extends from a center hole of the protective sleeve and contacts with a head face of an inner hole of the guide pipe. The utility model has the advantages that the structure is reasonable with a long service life, and has a perfect anti-siphon effect; in addition, the operation is easy and convenient.

Description

A kind of inlet valve with protecting jacket

[technical field]

The utility model relates to a kind of inlet valve that is used on the tank for excrement pan.

[background technique]

Present stage is in the inlet valve of the used tank for excrement pan of people, normally above the intrinsic conduit of water inlet and be provided with the sealing rubber cushion between the loam cake, thereby between water inlet body, loam cake and sealing rubber cushion, form back pressure cavity, shutoff inlet valve after utilizing the interior hydraulic pressure of back pressure cavity that the sealing rubber cushion is resetted is finished the water inlet of water tank.But, the sealing rubber cushion of this current class inlet valve is subjected to the distortion of hydraulic action bigger, elasticity weakens behind the long-term compressive deformation, and the fatigue resistance of the straight excessive bottom of current sealing rubber cushion is low, bring the sealing rubber cushion to lose efficacy easily, so caused the working life of whole inlet valve short, so be necessary the structure of current inlet valve is improved.

[model utility content]

The purpose of this utility model is to be to overcome the deficiencies in the prior art, and a kind of inlet valve of rational in infrastructure, long service life is provided, and the sealing rubber cushion elasticity in it is better, and fatigue resistance is strong.This inlet valve also has anti-siphon effect after further improving good, and SEA LEVEL VARIATION is subjected to the little and simple, convenient characteristics when regulating water level of influence of hydraulic pressure.

In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:

A kind of inlet valve with protecting jacket; the loam cake that includes water body into and be fastened togather with it; in the water inlet body, be set with conduit and intake pipe; above the intrinsic conduit of water inlet and be provided with the sealing rubber cushion between the loam cake; the water inlet body; form back pressure cavity between loam cake and the sealing rubber cushion; on water inlet body outer wall, be set with the keg float in a band keg float chamber; in this keg float chamber, be placed with float; described float and keg float are connected with the end of arguing for the sake of arguing in the rotating shaft that is arranged on loam cake by elevation and subsidence regulating device; this argue for the sake of arguing the other end can with on the back pressure aperture that covers contact; it is characterized in that: it is excessive to be provided with a circular arc on described sealing rubber cushion; between described sealing rubber cushion and conduit, be provided with the protecting jacket that is used for protecting the sealing rubber cushion; be provided with the arc groove that excessively is complementary with this circular arc in this protecting jacket, the boss of described sealing rubber cushion below stretches out and can contact with the upper-end surface of the endoporus of conduit from the protecting jacket center hole.

Aforesaid a kind of inlet valve with protecting jacket is characterized in that: described sealing rubber cushion is arranged in the annular ring of protecting jacket, and the curve bath in described annular ring and the loam cake matches to merge and drops in this groove; Just on described annular ring, have the rib groove that matches with spline rib in this curve bath.

Aforesaid a kind of inlet valve with protecting jacket, it is characterized in that: described elevation and subsidence regulating device includes motion bar, be stuck in the loop bar in the draw-in groove of this motion bar and be enclosed within adjustable lever in the center hole of this motion bar, the projection of described loop bar top be embedded in this on arguing for the sake of arguing bar-shaped trough and can in this groove, slide; On this adjustable lever motion bar, be respectively equipped with uniform pitch, with spiral shell to outside thread, in the pillar hole of this keg float, be provided with the thread that the outside thread with this adjustable lever is complementary, in the pillar hole of this float, be provided with the thread that the outside thread with this motion bar is complementary; Stretch out from the through hole of arguing for the sake of arguing described adjustable lever upper end; On adjustable lever, be provided with the positioning strip in the locating slot that can be inserted in this motion bar center hole.

Aforesaid a kind of inlet valve with protecting jacket is characterized in that: have the base apertures that is used for installing one-way valve below described keg float, described one-way valve can slide up and down along this base apertures, and the end face size of described one-way valve top is bigger than this base apertures.

Aforesaid a kind of inlet valve with protecting jacket is characterized in that: be provided with the slip muscle of band grab above described one-way valve, described grab is stuck in this keg float by this base apertures, and described slip muscle can slide in the base apertures of this keg float.

Aforesaid a kind of inlet valve with protecting jacket, it is characterized in that: in the bottom of described one-way valve is blind hole.

Aforesaid a kind of inlet valve with protecting jacket is characterized in that: be provided with skewed slot on the semi-girder of described loam cake, be provided with the water conservancy diversion boss of the water in the skewed slot being guided into the via cavities on the keg float below described loam cake; Water on being provided with it below described the arguing for the sake of arguing is guided the water conservancy diversion small boss of the via cavities on the keg float into.

Compared with prior art, the beneficial effects of the utility model are: 1), because it is excessive to be provided with a recessed circular arc on the sealing rubber cushion, guarantee that the sealing rubber cushion has better elasticity, than present stage straight excessive sealing rubber cushion better fatigue resistance is arranged, in the protecting jacket between sealing rubber cushion and conduit, be provided with simultaneously the arc groove that excessively is complementary with this circular arc, circular arc excessively just drops in the arc groove and by protecting jacket and comes support when reset mode, can avoid like this being out of shape under the long-term hydraulic action in back pressure cavity, so the utility model just can improve the working life of inlet valve greatly under situation rational in infrastructure; 2), the anti-siphon performance of the anti-siphon seat of this inlet valve is good, and can reduce the noise that water slug produces; 3) the moment stagnant water effect of the one-way valve of Shu below keg float is good, and when different hydraulic pressure were intake, SEA LEVEL VARIATION was little, and its effect of flushing the toilet is not subjected to the influence of hydraulic pressure of running water pipe basically, and its use is stable; 4) as long as, owing to turn adjustable lever and just can regulate the height of keg float and float simultaneously and realize water level in the regulating tank, it is easy to operate.

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

[description of drawings]

Fig. 1 is model utility embodiment's a structural representation;

Fig. 2 is the utility model embodiment's a water inlet schematic representation;

Fig. 3 is the utility model embodiment's a sealing schematic representation;

Fig. 4 is the utility model embodiment's a sealing rubber cushion structural representation;

Fig. 5 is the utility model embodiment's a sealing rubber cushion stereogram;

Fig. 6 is the utility model embodiment's a protecting jacket structural representation;

Fig. 7 is the utility model embodiment's a protecting jacket stereogram;

Fig. 8 is the utility model embodiment's the stereogram of arguing for the sake of arguing;

Fig. 9 is the utility model embodiment's a conduit stereogram;

Figure 10 is that the utility model embodiment's conduit is looked up the direction stereogram;

Figure 11 is the utility model embodiment's an one-way valve stereogram;

Figure 12 is that the utility model embodiment's one-way valve is looked up the direction stereogram;

Figure 13 is the utility model embodiment's a keg float master apparent direction stereogram;

Figure 14 is that the utility model embodiment's keg float is looked up the direction stereogram;

Figure 15 is the utility model embodiment's an anti-siphon seat stereogram;

Figure 16 is the utility model embodiment's an anti-siphon seat side-looking direction stereogram;

Figure 17 is the utility model embodiment's an anti-siphon rubber cushion stereogram;

Figure 18 is the utility model embodiment's a loam cake stereogram;

Figure 19 is that the utility model embodiment's loam cake is looked up the direction stereogram;

Figure 20 is the utility model embodiment's an adjustable lever stereogram;

Figure 21 is the utility model embodiment's a motion bar stereogram;

Figure 22 is the utility model embodiment's a loop bar stereogram.

[embodiment]

As Fig. 1,2, in 3 illustrated embodiments, the utility model is a kind of inlet valve that is used for the band protecting jacket of tank for excrement pan, the loam cake 3 that it includes water body 4 into and is fastened togather with it, in water inlet body 4, be set with conduit 10 and intake pipe 11, above the conduit 10 of water inlet in the body 4 and be provided with sealing rubber cushion 5 between the loam cake 3, during installation, sealing rubber cushion 5 is inserted in the loam cake 3 from the small column 3-2 in the middle of the loam cake 3, water inlet body 4, form back pressure cavity a between loam cake 3 and the sealing rubber cushion 5, on small column 3-2, have bar-shaped trough 3-3 with the guiding of the sub-fraction water in the conduit 10 back pressure cavity a, on water inlet body 4 outer walls, be set with the keg float 23 of a band keg float chamber 23-3, when mounted the hole 23-1 of keg float 23 be enclosed within on the outer wall of water body 4 into and get final product; Be placed with float 22 in the 23-3 of this keg float chamber, described float 22 and keg float 23 are connected with 27 1 ends of arguing for the sake of arguing in the rotating shaft 1 that is arranged on loam cake 3 by elevation and subsidence regulating device, and these 27 the other ends of arguing for the sake of arguing can contact with the back pressure hole 3-1 mouth on the loam cake 3.During retaining, successively from intake pipe 11, after the water that conduit 10 is come in is washed sealing rubber cushion 5 open, at this moment Da Bufen water flows to the into inner chamber 4-3 of water body 4 from the gap between conduit 10 and the sealing rubber cushion 5, enter water tank from the water outlet 11-1 of intake pipe 11 then and come retaining, the water of another fraction flows in the back pressure cavity a from the bar-shaped trough 3-3 on the small column 3-2 of loam cake 3, the water of water tank raises gradually, float 22 is risen, and 27 swings that promote to argue for the sake of arguing are up to the back pressure hole 3-1 that blocks on the loam cake 3, so along with the hydraulic pressure of back pressure cavity a raises, promote sealing rubber cushion 5 and reset downwards until being adjacent on the conduit 10, thereby finish the retaining process.When washing by water, the draining button of pressing on the lower header gets final product.

For making sealing rubber cushion 5 have better elasticity and fatigue resistance; and can protect sealing rubber cushion 5 not to be out of shape better; thereby improve the life-span of inlet valve; as Fig. 4; 5; on sealing rubber cushion 5, be provided with a recessed excessive 5-1 of circular arc; guarantee that sealing rubber cushion 5 has better elasticity; than present stage straight excessive sealing rubber cushion 5 better fatigue resistance is arranged; being provided with between sealing rubber cushion 5 and conduit 10 simultaneously is used for protecting the protecting jacket 29 of sealing rubber cushion 5 (as Fig. 6; shown in 7); in this protecting jacket 29, be provided with the arc groove 29-3 that is complementary with the excessive 5-1 of this circular arc; the excessive 5-1 of circular arc just drops in the arc groove 29-3 and by protecting jacket 29 and comes support when reset mode, can avoid the hydraulic action distortion in back pressure cavity a like this.The boss 5-2 of sealing rubber cushion 5 belows stretches out and can contact with the upper-end surface 10-4-1 of the endoporus 10-4 of conduit 10 from protecting jacket 29 center holes and realizes water shutoff.When water intake valve, water in the conduit 10 act on make on the bottom surface of boss 5-2 of sealing rubber cushion 5 boss 5-2 break away from the contacting of the upper-end surface 10-4-1 of conduit 10 endoporus 10-4 after form certain clearance, come retaining for the major part in the conduit 10 in the water tank by also finally flowing to.On conduit 10, be provided with convex tendon 10-2, can not be out of shape in the time of can protecting protecting jacket 29 to be subjected to high pressure water.

Among the embodiment as Figure 1-3, sealing rubber cushion 5 is arranged in the annular ring 29-1 of protecting jacket 29, and the curve bath 3-9 in annular ring 29-1 and the loam cake 3 matches to merge and drops in this groove; Just have the rib groove 29-2 that matches with spline rib 3-6 among this curve bath 3-9 on described annular ring 29-1, spline rib 3-6 can prevent that sealing rubber cushion 5 from rotating under the effect of hydraulic pressure like this.

In this example, elevation and subsidence regulating device includes motion bar 24, be stuck in the loop bar 25 in the draw-in groove 24-1 of this motion bar 24 and be enclosed within adjustable lever 26 in the center hole 24-3 of this motion bar 24, the projection 25-1 of described loop bar 25 tops be embedded in this argue for the sake of arguing on 27 bar-shaped trough 27-2 and can in this groove, slide; On this adjustable lever 26, motion bar 24, be respectively equipped with uniform pitch, with spiral shell to outside thread 26-1,24-2, in the pillar 23-6 hole of this keg float 23, be provided with the thread 23-7 that the outside thread 26-1 with this adjustable lever 26 is complementary, in the pillar 22-1 hole of this float 22, be provided with the thread 22-2 that the outside thread 24-2 with this motion bar 24 is complementary; Stretch out from 27 the through hole 27-3 of arguing for the sake of arguing described adjustable lever 26 upper ends; On adjustable lever 26, be provided with the positioning strip 26-2 in the locating slot 24-4 that can be inserted among this motion bar 24 center hole 24-3.During water level in regulating tank, above adjustable lever 26, turn it, engagement by the thread 23-7 in the pillar 23-6 hole of outside thread 26-1 on the adjustable lever 26 and keg float 23 up or down moves keg float 23, driving motion bar 24 simultaneously under the effect of the positioning strip 26-2 on the adjustable lever 26 also and then rotates in the same way, then synchronously drive float 22 again under the engagement of the thread 22-2 in the pillar 22-1 hole of the outside thread 24-2 of motion bar 24 and float 22 up or mobile down, at this moment the level height owing to keg float 23 open end 23-8 changes, among the keg float chamber 23-3 that water when the water level in the water tank just reaches behind the open end 23-8 of keg float 23 in the water tank begins to cover open end 23-8 and flow to out keg float 23, after water among the 23-3 of keg float chamber raises gradually and float 22 is risen, make 27 swings of arguing for the sake of arguing come back pressure hole 3-1 on the shutoff loam cake 3 by loop bar 25.From on can find out that after the variable height of keg float 23, the water level in the water tank also can and then change, thereby realize regulating tank the amount of being filled with water reach suitable demand.

For preventing that hydraulic pressure at the tap water water pipe from causing the water in the water tank to be back to polluted water in the running water pipe when not enough, below the conduit 10 arc shaped surface 10-1 that are positioned at this water inlet body 4, be provided with anti-siphon seat 8, be provided with an anti-siphon rubber cushion 6 that under external force can be respectively be adjacent to this arc groove 8-6 or arc shaped surface 10-1 in the space between the arc groove 8-6 above this anti-siphon seat 8 and the arc shaped surface 10-1 of this conduit 10.During installation, anti-siphon rubber cushion 6 and anti-siphon seat 8 are up overlapped and are pressed on the arc shaped surface 10-1 outer wall of conduit 10 from the little pipe end of conduit 10 successively.Having the vent 8-1 that communicates with side opening 4-1 on these water inlet body 4 outer walls on the arc groove 8-6 of this anti-siphon seat 8, thereby communicating with the air in the external world.On the outer wall of this anti-siphon seat 8, have the intermediate section discharge orifice 8-2 and the following tap hole 8-3 that communicate with the inner chamber 8-4 that should prevent siphon seat 8, the intermediate section discharge orifice 8-2 of described anti-siphon seat 8 communicates with the water supplement port 4-2 of water inlet on the body 4, and following tap hole 8-3 communicates with the inner chamber 4-3 of the body 4 of intaking.During water inlet, water reduces the noise that water slug produces under water inlet body 4 inner chamber 4-3 wall rotating flows; Most of water is washed the anti-siphon rubber cushion of making of resilient rubber materials 6 open, makes to prevent that siphon rubber cushion 6 touch the convex tendon 8-5 on the arc groove 8-6 that prevents siphon seat 8, stops water to flow out from the vent 8-1 of anti-siphon seat 8, influences outward appearance; So water can only flow to intermediate section discharge orifice 8-2 and following tap hole 8-3 from the inner chamber 8-4 the anti-siphon seat 8, the water supplement port 4-2 of the water body 4 into of respectively hanging oneself then and the water outlet 11-1 of water pipe 11 flow to water tank and come retaining.

As shown in Figure 3, behind the water inlet sealing, anti-siphon rubber cushion 6 since elastic reaction own reply again with conduit 10 arc shaped surface 10-1 on water outlet 10-3 fit, the water outlet 10-3 of conduit and the water in the water tank are isolated fully; Open the vent 8-1 of anti-siphon seat 8 simultaneously, air enters the inner chamber 8-4 of anti-siphon seat 8 from the vent 8-1 that water inlet body side opening 4-1 reaches anti-siphon seat 8, guarantees that the inner chamber 8-4 of anti-siphon seat 8 communicates with the atmosphere in the external world; Make the inner chamber 8-4 of anti-siphon Cuo 8 can not produce vacuum; Water in the water tank can not pass through and reflux from conduit 10 water outlet 10-3, endoporus 10-4 extraction formation after intake pipe 11 water outlet 11-1, water inlet body 4 inner chamber 4-3 reach the inner chamber 8-4 that prevents siphon seat 8.Intermediate section discharge orifice 8-2 and inner chamber 8-4 that water in the water tank can not pass through water-adding pipe, water inlet body water supplement port 4-2, anti-siphon seat 8 successively yet extract the formation backflow out from conduit 10 water outlet 10-3, endoporus 10-4.

Be the water in the keg float chamber 23-3 that discharges keg float 23, below described keg float 23, have the base apertures 23-4 that is used for installing one-way valve 20, described one-way valve 20 can slide up and down along this base apertures 23-4, and the end face 20-3 size of described one-way valve 20 tops is bigger than this base apertures 23-4.During draining, the drawdown in the water tank, one-way valve 20 is owing to action of gravity is fallen, and the water that keg float is 23 li flows out from the gap of keg float base apertures 23-4 and one-way valve 20 formation, and as shown in Figure 1, 2, float 22 drives 27 whereabouts of arguing for the sake of arguing.During water intake valve, when the water inlet water level completely arrives the bottom surface of one-way valve 20, continue water inlet, because one-way valve 20 bottoms are blind hole 20-1 (as shown in figure 10), fit producing under the buoyancy function convex tendon 23-5 that one-way valve 20 is upwards floated with keg float base apertures 23-4 bottom surface in the water, stop water to enter in the 23-3 of keg float chamber, when waterborne when being raised to the water level that regulates in advance, the open end 23-8 that water covers keg float 23 top edges is intake rapidly in the 23-3 of keg float chamber, float 22 floats and drives the 27 back pressure hole 3-1 that lift loam cake 3 that argue for the sake of arguing and seal, the back pressure cavity a that sealing rubber cushion 5 and loam cake 3 are formed produces pressure and increases, the water intake 10-4 of conduit 10 is sealed, and inlet valve stops into water; Moment, stagnant water effect was good, and when different hydraulic pressure were intake, SEA LEVEL VARIATION was little, and the water yield in the water tank keeps constant substantially.

As shown in Figure 1, 2, 3, slip muscle 20-4 with grab 20-2 is arranged in the top of one-way valve 20, described grab 20-2 is stuck in this keg float 23 after by this base apertures 23-4, and described slip muscle 20-4 can slide in the base apertures 23-4 of this keg float 23.During draining, the water of keg float 23 flows out from the slit between the slip muscle 20-4.

For preventing that the water that flows into water tank from the back pressure hole 3-1 that opens from influencing the water inlet function in the keg float chamber 23-3 of the loam cake 3 or the 27 inflow keg floats 23 of arguing for the sake of arguing, on the semi-girder of described loam cake 3, be provided with skewed slot 3-4, below described loam cake 3, be provided with the water conservancy diversion boss 3-5 that the water among the skewed slot 3-4 is guided into the via cavities 23-2 on the keg float 23; Guide the water conservancy diversion small boss 27-1 of the via cavities 23-2 on the keg float 23 at described water of arguing for the sake of arguing on being provided with it below 27, as Fig. 8.Can prevent effectively that like this water from flowing in the keg float chamber 23-3, thereby influence the water inlet of water tank.

Claims

1; a kind of inlet valve with protecting jacket; the loam cake (3) that includes water body (4) into and be fastened togather with it; in water inlet body (4), be set with conduit (10) and intake pipe (11); be provided with sealing rubber cushion (5) between conduit (10) top in water inlet body (4) and the loam cake (3); water inlet body (4); form back pressure cavity a between loam cake (3) and the sealing rubber cushion (5); on water inlet body (4) outer wall, be set with the keg float (23) in a band keg float chamber (23-3); in this keg float chamber (23-3), be placed with float (22); described float (22) and keg float (23) are connected with (27) one ends of arguing for the sake of arguing in the rotating shaft that is arranged on loam cake (3) (1) by elevation and subsidence regulating device; this (27) the other end of arguing for the sake of arguing can contact with back pressure hole (3-1) mouth on the loam cake (3); it is characterized in that: on described sealing rubber cushion (5), be provided with a circular arc excessively (5-1); between described sealing rubber cushion (5) and conduit (10), be provided with the protecting jacket (29) that is used for protecting sealing rubber cushion (5); be provided with in this protecting jacket (29) and excessive (5-1) arc groove (29-3) that is complementary of this circular arc, the boss (5-2) of described sealing rubber cushion (5) below stretches out and can contact with the upper-end surface (10-4-1) of the endoporus (10-4) of conduit (10) from protecting jacket (29) center hole.

2, a kind of inlet valve according to claim 1 with protecting jacket, it is characterized in that: described sealing rubber cushion (5) is arranged in the annular ring (29-1) of protecting jacket (29), and the curve bath (3-9) in described annular ring (29-1) and the loam cake (3) matches to merge and drops in this groove; Just on described annular ring (29-1), have the rib groove (29-2) that matches with spline rib (3-6) in this curve bath (3-9).

3, a kind of inlet valve according to claim 1 and 2 with protecting jacket, it is characterized in that: described elevation and subsidence regulating device includes motion bar (24), be stuck in the loop bar (25) in the draw-in groove (24-1) of this motion bar (24) and be enclosed within adjustable lever (26) in the center hole (24-3) of this motion bar (24), and the bar-shaped trough (27-2) that the projection (25-1) of described loop bar (25) top is embedded on these argue for the sake of arguing (27) also can slide in this groove; On this adjustable lever (26), motion bar (24), be respectively equipped with uniform pitch, with spiral shell to outside thread (26-1), (24-2), in pillar (23-6) hole of this keg float (23), be provided with the thread (23-7) that the outside thread (26-1) with this adjustable lever (26) is complementary, in pillar (22-1) hole of this float (22), be provided with the thread (22-2) that the outside thread (24-2) with this motion bar (24) is complementary; Stretch out from the through hole (27-3) of argue for the sake of arguing (27) described adjustable lever (26) upper end; On adjustable lever (26), be provided with the positioning strip (26-2) in the locating slot (24-4) that can be inserted in this motion bar (24) center hole (24-3).

4, a kind of inlet valve according to claim 1 and 2 with protecting jacket; it is characterized in that: have the base apertures (23-4) that is used for installing one-way valve (20) in described keg float (23) below; described one-way valve (20) can slide up and down along this base apertures (23-4), and end face (20-3) size of described one-way valve (20) top is bigger than this base apertures (23-4).

5, a kind of inlet valve according to claim 4 with protecting jacket; it is characterized in that: the slip muscle (20-4) that is provided with band grab (20-2) in the top of described one-way valve (20); described grab (20-2) is stuck in this keg float (23) by this base apertures (23-4), and described slip muscle (20-4) can slide in the base apertures (23-4) of this keg float (23).

6, a kind of inlet valve with protecting jacket according to claim 5 is characterized in that: in the bottom of described one-way valve (20) is blind hole (20-1).

7, a kind of inlet valve according to claim 1 and 2 with protecting jacket, it is characterized in that: on the semi-girder of described loam cake (3), be provided with skewed slot (3-4), be provided with the water conservancy diversion boss (3-5) of the water in the skewed slot (3-4) being guided into the via cavities (23-2) on the keg float (23) in described loam cake (3) below; Water on described arguing for the sake of arguing (27) below is provided with it is guided the water conservancy diversion small boss (27-1) of the via cavities (23-2) on the keg float (23) into.