CN209155243U - A kind of fore filter - Google Patents

Abstract

The utility model discloses a kind of fore filters, including with first fluid entrance, the bottle body of second fluid outlet and waste and the filtering body that can be moved with respect to bottle body inside bottle body；Filtering body includes the filter house being connected along its direction of motion and flushing-back filtering portion；Filtering body relative to bottle body it is mobile with for filter house and the conducting of first fluid entrance when, flow into fluid from first fluid entrance, from the first effluent of filter house to second side, export and be discharged from second fluid, realize filtering；When backwash filter portion and first fluid entrance is connected in mobile filtering body, fluid flows to second side of filter house through backwash filter portion, and flows to the first side from second side of filter house, is discharged from waste, realizes the back flush to filter house.Fore filter provided by the utility model carries out the reversed flushing under opposite filtration condition to filter house, improves the cleaning effect to filter house by when cleaning to filter house, changing fluid flow direction.

Description

A kind of fore filter

Technical field

The utility model relates to a kind of fore filters.

Background technique

Tap water is typically easy to cause secondary pollution, in order to mention in the process of conveying due to getting rusty, reveal etc. pipeline High tap water quality extends the service life of the facilities such as water heater, water purifier, it will usually install one in the front end of house lead in pipeline Fore filter.

Fore filter purpose is installed, primary filtration mainly is carried out to tap water, removes iron rust, sand caused by pipeline The impurity such as mud and algae.

Currently used fore filter and its workflow are as shown in Figure of description 1 and attached drawing 2, and appearance is T-shaped, just When common water filtering, ball valve is closed, and flows to the inside of strainer 04 through the outside of strainer 04 from water inlet, is arranged after filtering from water outlet Out；When need rate net 04 is rinsed when, stop use water, open ball valve, make water flow along the surface of strainer 04 to strainer 04 into Row rinses, and such backwashing manner is only capable of rinsing out the impurity on 04 surface of strainer, the impurity in 04 mesh of strainer is then difficult to rush Wash clean, or even block mesh instead, disassembly fore filter is generallyd use at this time and strainer is cleared up, extremely not It is convenient.Since cleaning strainer is more difficult, for the regular blocking for avoiding strainer, relatively large, the mistake of the mesh design of strainer It filters ineffective.

Therefore, the filter effect for how improving fore filter, solve the problems, such as filter gauze cleaning is inconvenient, cleaning it is sordid at For those skilled in the art's problem to be solved.

Utility model content

The purpose of the utility model is to provide a kind of fore filter, such fore filter cleaning strainer it is simple and fast and Completely, and filter effect to originally water or other fluid can be improved.

To achieve the above object, the utility model provides a kind of fore filter, including with first fluid entrance, second The bottle body of fluid outlet and waste；It further include being built in bottle body and the filtering body to move relative to bottle body；

Filtering body includes the filter house and backwash filter portion along the setting of its direction of motion, and filter house and backwash filter Portion is connected；

Under filtration condition, filtering body is moved relative to bottle body and is connected with for filter house with first fluid entrance, fluid It is flowed into from first fluid entrance, and exports and flow out through second fluid to second side of filter house from the first effluent of filter house, it is real Now filter；

Under flushing state, backwash filter portion is connected with first fluid entrance in mobile filtering body, and fluid is from first-class Body entrance flows into, and flows to second side of filter house through backwash filter portion, and second side through filter house flows to the of filter house Side is discharged from waste, realizes the back flush to filter house.

Preferably, bottle body is T-shaped；Filtering body is built in the vertical section of T-type bottle body, and first fluid entrance, second fluid go out Mouth, which is respectively arranged on the both ends of the horizontal segment of T-type bottle body and only relies on vertical section, realizes conducting, and waste is set to the bottom of vertical section Portion.

Preferably, backwash filter portion is set to the top of filter house, and is additionally provided between backwash filter portion and filter house Upper isolating ring；

Upper isolating ring is to be isolated filter house and backwash filter portion, and under filtration condition, fluid is only realized by filter house Filtering.

Preferably, lid is additionally provided with above filtering body；Lid fitting sle is set to the periphery in backwash filter portion, realizes in mistake Under filter state, backwash filter portion is closed, only makes fluid from filter house by realizing filtering.

Preferably, filtering body is equipped with limiting section, and limiting section is located at the top of upper isolating ring；Lid is equipped with limit plane, to Cooperate with limiting section, limits the movement position of filtering body.

Preferably, upper isolating ring lower part is additionally provided with elastic portion, and the lower end of filter house is also connected with seal stopper ring；

Under filtration condition, under the effect of elastomeric element resilient support, the conducting of filter house and first fluid entrance is realized；

Under flushing state, Fluid pressure acts on seal stopper ring, and filtering body is driven to move down, and limiting section contact limit is flat Backwash filter portion is exposed in face, realizes the conducting in backwash filter portion and first fluid entrance.

Preferably, outer skeleton is additionally provided between filtering body and bottle body, the side wall of outer skeleton opens up scraping article card along the vertical direction Slot, to fixed scraping article, to realize scraping to the inner wall of bottle body.

Preferably, the circumferential direction of outer skeleton bottom end offers blowdown window.

Preferably, the cover that outer skeleton rotation is driven with the rotation connection of outer skeleton is also connected with below bottle body.

Preferably, it is equipped with blowdown valve, and the opening and closing by being set to the knob control of sewage disposal valve on the outside of cover inside cover, leads to When overwinding rotates button unlatching blowdown valve, the unimpeded of flushing state down blow outlet is realized.

Relative to above-mentioned background technique, the utility model is difficult to clean clean problem for fore filter strainer, special Not Cai Yongliao a kind of backwash mode, can be in the filtering body of bottle body internal motion, under filtration condition by setting, mobile filtering Body is filter house and the conducting of first fluid entrance, flows into fluid from first fluid entrance, and the first effluent through filter house is to the Two sides, and export outflow from second fluid and realize normal filtration function；Under flushing state, moving filtering body again makes to backwash Filter house and the conducting of first fluid entrance, fluid flow into through first fluid entrance and flow to the second of filter house through backwash filter portion Side, and the first side is flowed to from filter house second side, it is flowed out from waste, reversed flushing is carried out to filter house, for inlay card Impurity inside filter house applies one to impurity of the inlay card on the inside of filter house by reverse flow under opposite filtration condition A opposition, impurity is recoiled and washes out filter house, and cleaning effect significantly improves.Fore filter provided by the utility model The cleaning effect of filtering body is good, therefore can use the filter house of minor diameter filter opening, significantly improves filter effect.

In addition, the utility model easily scrapes bottle body inner wall by the way that outer skeleton and scraping article is arranged；Pass through setting Elastic portion and seal stopper ring, it is only necessary to which the opening and closing of control of sewage disposal outlet can free switch filtering state and flushing shape State completes the cleaning to filter house, easy to clean quick without dismantling fore filter.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.

Fig. 1 is the schematic diagram of fore filter filtration condition in the prior art；

Fig. 2 is the schematic diagram that fore filter rinses state in the prior art；

Fig. 3 is the schematic diagram of fore filter filtration condition provided by the utility model embodiment；

Fig. 4 is the structure chart of filtering body in Fig. 3；

Fig. 5 is the structure chart of lid in Fig. 3；

Fig. 6 is the structure chart of seal stopper ring in Fig. 3；

Fig. 7 is the schematic diagram of the limit plane of lid in Fig. 5；

Fig. 8 is the schematic diagram that fore filter provided by the utility model embodiment rinses state；

Fig. 9 is the structure chart of the China and foreign countries Fig. 8 skeleton；

Figure 10 is the status diagram of outer skeleton and filtering body under filtration condition in Fig. 3；

Figure 11 is the status diagram of outer skeleton and filtering body under flushing state in Fig. 8；

Figure 12 is that fore filter provided by the utility model scrapes inner wall schematic diagram；

Figure 13 is the operation chart of fore filter in Figure 12.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In order to make those skilled in the art more fully understand the utility model, with reference to the accompanying drawing and specifically The utility model is described in further detail for embodiment.

Figure of description 3 is please referred to attached drawing 13, Fig. 3 is the filtering of fore filter provided by the utility model embodiment The schematic diagram of state；Fig. 4 is the structure chart of filtering body in Fig. 3；Fig. 5 is the structure chart of lid in Fig. 3；Fig. 6 is that gear is sealed in Fig. 3 The structure chart of ring；Fig. 7 is the schematic diagram of the limit plane of lid in Fig. 5；Fig. 8 is preposition provided by the utility model embodiment The schematic diagram of filter flushing state；Fig. 9 is the structure chart of the China and foreign countries Fig. 8 skeleton；Figure 10 be in Fig. 3 under filtration condition outer skeleton and The status diagram of filtering body；Figure 11 is the status diagram of outer skeleton and filtering body under flushing state in Fig. 8；Figure 12 is this reality Inner wall schematic diagram is scraped with novel provided fore filter；Figure 13 is the operation chart of fore filter in Figure 12.

In a kind of specific embodiment provided by the utility model, prefilter implement body provided by the utility model Bottle body 1 including fore filter is installed on the filtering body 4 that filtering function is realized inside bottle body 1；Opening that there are three the tools of bottle body 1, That is first fluid entrance 01, second fluid outlet 02 and waste 03.

Different, filtering body 4 provided by the utility model includes filter house 44 and backwash filter portion 41, and Filtering body 4 can be connected with backwash filter portion 41 along the direction of motion of filtering body 4 in 1 internal motion of bottle body, filter house 44；Just Under normal filtration condition, filter house 44 and first fluid entrance 01 is connected in mobile filtering body 4, and fluid is flowed from first fluid entrance 01 Enter, flow only through filter house 44, flows to and filter from the outside of filtering body 4 shown in the first side of filter house 44 namely Figure of description 3 The inside of filtering body 4 shown in the second side namely Figure of description 3 in portion 44 is realized and is filtered, and flows out from second fluid outlet 02, Under this state, waste 03 is closed.

Under flushing state, backwash filter portion 41 and first fluid entrance 01 is connected in mobile filtering body 4, and fluid is from the One fluid inlet 01 flows into, and flows to second side of filter house 44 by backwash filter portion 41, and from second side of filter house 44 The first side of filter house 44 is flowed to, the back flush to filter house 44 is realized, rinses out and be attached to filter house 44 under filtration condition Impurity, it is flushed after fluid flowed out through waste 03.

The T-type structure as shown in Figure of description 3 can be used in the bottle body 1 of fore filter provided by the utility model, It can certainly be the structure of such as Y type etc.The concretely transparent configuration of bottle body 1, convenient for preposition mistake under observation different conditions The moving situation of filtering body 4 in filter, the bottle body 1 of the T-type structure vertical section vertical including a horizontal segment and relative level end, First fluid entrance 01, second fluid outlet 02 are located at the both ends of horizontal segment, and waste 03 is located at the bottom end of vertical section； And two horizontal segment be not connected directly, fluid through first fluid entrance 01 enter bottle body 1 after, be folded to through vertical section through filter house By 02 outflow of second fluid outlet after 44 filterings；Namely first fluid entrance 01 and second fluid outlet 02 only pass through vertical section reality It is now connected, and is flowed out after the filtering of the filter house 44 by being set to vertical section.Waste 03 is closed under filtration condition, only anti- The fluid backwash is discharged is opened when to washing and filtering.

A kind of specific structure of filtering body 4, such as explanation are given in a specific embodiment provided by the utility model Shown in book attached drawing 4, filtering body 4 includes filter house 44 and backwash filter portion 41；Wherein backwash filter portion 41 is located at filter house 44 top is additionally provided with upper isolating ring 43 between the two, backwash filter portion 41 and filter house 44 is separated, by moving up and down Filter body 4, to realize under filtration condition, fluid is only flowed through from underlying filter house 44, realizes filtering.In upper isolating ring 43 Periphery be also arranged O-ring seal, guarantee isolation effect.

In other words, the effect of upper isolating ring 43 is to separate in backwash filter portion 41 and filter house 44, by being moved through Filter body 4 under flushing state, moves down filtering body 4, due to upper isolating ring so that fluid only passes through filter house 44 under filtration condition 43 buffer action, fluid are also only capable of flowing to second side of filter house 44 from the backwash filter portion 41 of top, and from filter house 44 second side flows to the first side of filter house 44, realizes and clears up under flushing state the back flush of filter house 44, and will punching Fluid after washing is discharged from waste 03.

Wherein, filter house 44 and backwash filter portion 41 can be 5~50 μm of mesh diameter of strainer, and strainer is made into The cylinder-like structure as shown in Figure of description 4 is also possible to the filtration members with similar filtering function of other models.

The fluid under filtration condition flows through backwash filter portion 41, prefilter provided by the utility model in order to prevent Device is also specifically designed a kind of lid 2.Figure of description 4, attached drawing 5 and attached drawing 7 are please referred to, lid 2 has and filtering body 4 is more specific For and the cylinder-like structure that matches of backwash filter portion 41, diameter is slightly larger than backwash filter portion 41, to be mounted on The top of filter body 4, is set in the periphery in backwash filter portion 41, realize under filtration condition to backwash filter portion 41 every From, namely passing through the effect of upper isolating ring 43 and lid 2, it is ensured that under filtration condition, fluid flows only through filter house 44, avoids anti- The pollution in washing and filtering portion 41.

Lid 2 is contacted by the separate space muscle 21 and filtering body 4 of bottom, can also be added between separate space muscle 21 and filtering body 4 Silica gel sealing ring 13 is realized in sealing contact.

Also a limiting section 42 is arranged in the top of upper isolating ring 43 in filtering body 4, specifically can be convex as shown in Figure of description 4 The buckle shape risen, corresponding, it is flat that the side wall of lid 2 is provided with the limit for offseting with buckle and realizing and limiting to filtering body Face 22, the position that limitation filtering body moves downward, makes filtering body 4 be in suitable operating position.

Furthermore the lower section of upper isolating ring 43 is additionally provided with elastic portion 3, and one end inlay card of elastic portion 3 is in the inner sidewall of bottle body 1.It is another The lower end surface joint at end and upper isolating ring 43, by elastic portion 3 to the supporting role of filtering body 1 and the limit plane of lid 2 The position-limiting action of 22 pairs of filtering bodies realizes that filter house 44 is in normal strain position, and under flushing state, filtering body 4 is in fluid It is moved down under pressure, stop motion after the contact limit plane 22 of limiting section 42 defines the movement position of filtering body 4.

The lower end of filter house 44 is also connected with seal stopper ring 6, and seal stopper ring 6 can pass through CARBURIZING FURNACE FOR STAINLESS FASTENER 12 and filter house 44 realize connection, to realize under the smooth backwash filter state of waste 03, Fluid pressure acts on seal stopper ring 6, overcome the elastic force of elastic portion 3 that filtering body 4 is driven to move down, backwash filter portion 41 is removed from lid 2, simultaneously because upper isolating ring 43 buffer action, fluid only pass through second side that backwash filter portion 41 flows to filter house 44, and from the second of filter house 44 Effluent realizes that the fluid after flushing is through waste to the back flush decontamination of filter house 44 to the first side of filter house 44 03 discharge fore filter.

It should be noted that elastic portion 3 can use spring, torsional spring and to prevent getting rusty for elastic portion, elastic portion 3 to the greatest extent may be used Stainless steel material can be used.The structure of seal stopper ring 6 is a circular base plate, the center of circle opens up and mistake as shown in Figure of description 6 The connection of filter portion with the screw hole passed through for CARBURIZING FURNACE FOR STAINLESS FASTENER 12；The side wall of seal stopper ring 6 also opens up seal groove 61, to install Baffle ring sealing ring 62, realization and 1 inner wall of bottle body fit closely, to guarantee that seal stopper ring 6 drives filtering under the pressure of fluid Portion 44 moves down.

Seal stopper ring 6 is moved downward to certain position constantly, and the inner wall of seal stopper ring 6 and bottle body 1 generates gap, backwash Fluid afterwards is flowed out through gap；Here certain position refers to the elastic force of the active force and elastic portion 3 that generate by fluid flow rate When balance, the position of seal stopper ring 6, at this point, backwash filter portion 41 and first fluid entrance 01 are connected.

Wherein, the fluid under filtration condition flows to substantially as shown in Figure of description 3；Under flushing state, the flow direction of fluid Substantially as shown in Figure of description 8.

In another specific embodiment provided by the utility model, fore filter is between bottle body 1 and filtering body 4 It is also arranged with outer skeleton 5, one end inlay card of elastomeric element 3 is in the inner wall for employing frame 5 outside, the structure such as specification of outer skeleton 5 at this time Shown in attached drawing 9.The substantially cylindrical structure of outer skeleton 5 and diameter are greater than the diameter of filtering body 4, and the side wall of outer skeleton 5 is along vertical Direction opens up scraping article mounting groove 52, and to install scraping article 9, the inner wall realization interference fit of scraping article 9 and bottle body 1 realizes that rotation is outer When skeleton 5, scraping article 9 carries out the inner wall of bottle body 1 to scrape cleaning, removes the impurity for being attached to 1 inner wall of bottle body；Under filtration condition, The inner wall upper end of outer skeleton 5 and upper isolating ring 43 form sealing, play the role of closed waterway.

The bottom end of outer skeleton 5 also circumferentially opens up blowdown window 51, dirty fluid is discharged, while can be convenient The moving situation of filtering body 4 and seal stopper ring 6 is observed by blowdown window 51.Filtering body 4 and outer skeleton 5 under normal filtration state Relative position as shown in Figure of description 10；The relative position such as explanation of filtering body 4 and outer skeleton 5 under backwash filter state Shown in book attached drawing 11.

For the convenience used for further increasing fore filter provided by the utility model, the lower section of bottle body 1 also connects Connect cover 10.Figure of description 12 and attached drawing 13 are please referred to, cover 10 is tapered, and internal and outer skeleton 5 is turned by hollow rotating shaft Dynamic connection；When rotating the adjustment section 101 of cover 10, outer skeleton 5 is driven to be rotated, so that scraping article 9 be made to complete in bottle body 1 The cleaning of wall.

Wherein the inner wall of 1 junction of cover 10 and bottle body is additionally provided with sealing element 11 namely sealing element 11 in the outer shaft of shaft Sealing is formed between the inner wall of bottle body 1, and when guaranteeing rotation adjustment section 101, fluid leakage does not occur.

The inside of cover 10 is additionally provided with blowdown valve 8, specifically can the ball valve usually chosen of common fore filter, cover 10 Outside be equipped with the knob 7 of 8 open and close of control of sewage disposal valve, under normal filtration state, blowdown valve 8 is in close state, and is needed When carrying out sewage backwash, rotation knob 7, which opens ball valve 8, can easily carry out sewage backwash, while also rotatably adjustable Portion 101 scrapes the inner wall of the bottle body 1 of fore filter.

Above-mentioned specific embodiment realizes under filtration condition the impact force action of seal stopper ring 6 by elastic portion 3 and fluid It can be with and by the opening and closing free switching two states of blowdown valve 8 with the movement of the filtering body 4 under flushing state Control the movement of filtering body 4 in other manners, such as by filtering body 4 and a rotation axis connection, by rotate in the forward direction to Upper propulsion filtering body 4 and reverse rotation recall filtering body 4 downwards to control the movement of filtering body 4.Such as lipstick, solid glue stick it Class rotation push structure or it is other can be realized control filtering body 4 move up and down structure all can, here it is not reinflated in detail Introduction.

Fore filter provided by the utility model, by using the mistake comprising filter house 44 and backwash filter portion 41 Filter body 4 controls moving up and down for filtering body 4 under different conditions, realizes that the dirty fluid through filter house 44 of flushing state is opposite The reverse flow of the fluid for flowing through filter house 44 under normal filtration state carries out back flush to filter house 44, can not only Rinse out the impurity on 44 surface of filter house, moreover it is possible to which the opposition of thrust when by applying opposite forward flow will be stuck in Impurity inside filter portion, which is rinsed well, only can be achieved with the cleaning of the back flush to filter house 44, letter by rotating adjustment section 101 Folk prescription is just.

Since fore filter filter house 44 provided by the utility model cleans simply thoroughly, without having to worry about filter house 44 Fouling problems are blocked, the filter house 44 of minor diameter mesh can be chosen, 5~50 μm of strainer can be generally chosen, relative to tradition Fore filter mesh diameter be 100~500 μm of strainer, significantly improve filter effect, energy be filtered to tap water The service life for enough effectively improving the electric appliances such as water purifier, water heater is also beneficial to the health of human body.

It should be noted that in the present specification, such as first and second etc relational terms are used merely to one Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual Relationship or sequence.

Fore filter provided by the utility model is described in detail above.Specific case used herein The principles of the present invention and embodiment are expounded, the above embodiments are only used to help understand, and this is practical Novel method and its core concept.It should be pointed out that for those skilled in the art, not departing from this reality Under the premise of with new principle, several improvements and modifications can be made to this utility model, these improvement and modification are also fallen into In the protection scope of the utility model claims.

Claims (10)

1. a kind of fore filter, including with first fluid entrance (01), second fluid outlet (02) and waste (03) bottle body (1)；It is characterized in that, further including being built in the bottle body (1) and to move relative to the bottle body (1) Filtering body (4)；

The filtering body (4) includes the filter house (44) and backwash filter portion (41) along the setting of its direction of motion, and the mistake Filter portion (44) is connected with the backwash filter portion (41)；

Under filtration condition, the filtering body (4) relative to the bottle body (1) move with for the filter house (44) with it is described First fluid entrance (01) conducting, fluid flows into from the first fluid entrance (01), and from the first of the filter house (44) Effluent realizes filtering through second fluid outlet (02) outflow to second side of the filter house (44)；

Under flushing state, the filtering body (4) is moved relative to the bottle body (1) with for the backwash filter portion (41) It is connected with the first fluid entrance (01), fluid is flowed into from the first fluid entrance (01), through the backwash filter portion (41) second side of the filter house (44) is flowed to, and second side through the filter house (44) flows to the filter house (44) First side is discharged from the waste (03), realizes the back flush to the filter house (44).

2. fore filter according to claim 1, which is characterized in that the bottle body (1) is T-shaped；The filtering body (4) It is built in the vertical section of T-type bottle body (1), the first fluid entrance (01), second fluid outlet (02) are respectively arranged on the T-type It the both ends of the horizontal segment of bottle body (1) and only relies on the vertical section and realizes conducting, the waste (03) is set to described vertical The bottom of section.

3. fore filter according to claim 2, which is characterized in that the backwash filter portion (41) is set to the mistake The top in filter portion (44), and upper isolating ring (43) are additionally provided between the backwash filter portion (41) and the filter house (44)；

The upper isolating ring (43) is to be isolated the filter house (44) and the backwash filter portion (41), under filtration condition, Fluid only passes through the filter house (44) and realizes filtering.

4. fore filter according to claim 3, which is characterized in that be additionally provided with lid above the filtering body (4) (2)；Lid (2) fitting sle is set to the periphery of the backwash filter portion (41), realizes under filtration condition, described in closing Backwash filter portion (41) only makes fluid from the filter house (44) by realizing filtering.

5. fore filter according to claim 4, which is characterized in that the filtering body (4) is equipped with limiting section (42), institute State the top that limiting section (42) are located at the upper isolating ring (43)；The lid (2) be equipped with limit plane (22), to the limit Position portion (42) cooperation, limits the movement position of the filtering body (4).

6. fore filter according to claim 5, which is characterized in that upper isolating ring (43) lower part is additionally provided with elastic portion (3), the lower end of the filter house (44) is also connected with seal stopper ring (6)；

Under filtration condition, under the effect of the elastic portion (3) part resilient support, filter house (44) and the first fluid are realized The conducting of entrance (01)；

Under flushing state, Fluid pressure acts on the seal stopper ring (6), and the filtering body (4) is driven to move down, the limit Position portion (42) contacts the limit plane (22), exposes the backwash filter portion (41), realizes the backwash filter portion (41) and the conducting of the first fluid entrance (01).

7. fore filter according to any one of claims 1 to 6, which is characterized in that the filtering body (4) and the bottle It is additionally provided between body (1) outer skeleton (5), the side wall of the outer skeleton (5) opens up along the vertical direction scrapes clamp bar slot (52), to solid Scraping article (9) are determined, to realize scraping to the inner wall of the bottle body (1).

8. fore filter according to claim 7, which is characterized in that the circumferential direction of outer skeleton (5) bottom end offers Blowdown window (51).

9. fore filter according to claim 7, which is characterized in that be also connected with below the bottle body (1) with it is described Outer skeleton (5) rotation connection drives the cover (10) of outer skeleton (5) rotation.

10. fore filter according to claim 9, which is characterized in that be equipped with blowdown valve inside the cover (10) (8), the opening and closing for and by being set to the knob (7) on the outside of the cover (10) controlling the blowdown valve (8), by rotating the rotation When button (7) opens blowdown valve (8), the waste (03) is unimpeded under realization flushing state.