CN209361956U - A kind of filter tunnel - Google Patents

Abstract

The utility model discloses a kind of filter tunnels, including funnel body, the funnel body includes top cylinder, the lower end of the top cylinder has tapered transitional, the bottom end of tapered transitional has the vertical tube body extended downwardly, there is annular protrusion on the upper inner wall of the tapered transitional, filtering board is placed in the annular protrusion, the filtering board is fitted and fixed on the annular protrusion by bulb plunger, the tapered transitional lateral wall and along taper extend direction be provided with strip groove portion.Filter tunnel according to the present utility model has the advantages that structurally reasonable, convenient disassembly, convenient for cleaning, and effectively reduce leads to omission or the generation of bubble because of air pressure in experimentation.

Description

A kind of filter tunnel

Technical field

The utility model relates to filtration element technology field more particularly to a kind of filter tunnels.

Background technique

Funnel is generally used in liquid guide flow to some small-bore containers, and some liquid is importing in small-caliber vessel Need to be filtered liquid before, currently, common filter tunnel instrument is sand core funnel and Buchner funnel, Buchner funnel and Sand core funnel is not secured enough with the fixation of small-bore container edge contact portion in filtering, is easy when contact position excessively seals The problem of generating the influence of atmospheric pressure and cause the rate of filtration slowly or generate bubble, and being easy to happen overflow, or even when to mistake Hot liquid, it is toxic or perishable when liquid when being filtered, be easy to be splashed to user on hand, user allowed to cause to hurt Evil.

Utility model content

The purpose of this utility model is to provide a kind of filter tunnel, filter tunnel according to the present utility model has structure Rationally, convenient disassembly, convenient for cleaning the advantages of, effectively reducing in experimentation causes to omit because of air pressure or bubble It generates, to achieve the goals above, the utility model uses following technical effect:

According to the one aspect of this hair utility model, a kind of filter tunnel, including funnel body, the funnel sheet are provided Body includes top cylinder, the lower end of the top cylinder has a tapered transitional, and the bottom end of tapered transitional, which has, to be extended downwardly Vertical tube body has annular protrusion on the upper inner wall of the tapered transitional, was placed in the annular protrusion Filter plate is filtered, which is fitted and fixed on the annular protrusion by bulb plunger, in the outer of the tapered transitional Side wall and along taper extend direction be provided with strip groove portion.

Preferably, it is coated with elastic sheet rubber in the lateral wall of the tapered transitional, and the elastic sheet rubber is coated Width be less than strip groove portion length.

Preferably, it is provided centrally with the portion of lifting in the filtering board, one end of the handle is under filtering board Surface, the other end for lifting portion upwardly extend the oral area close to top cylinder.

Preferably, the both ends open for lifting portion and in hollow form be connected to.

Preferably, the lower end outlet of the vertical tube body is oval longitudal section.

The funnel body and filtering board are ceramics, plastics or glass structure.

Preferably, it is evenly distributed with filter hole on the surface of the filtering board, in setting for the filtering board edge It is equipped with bound edge ring.

Preferably, the filter hole is bellmouth, and the aperture of each bellmouth gradually becomes smaller from top to bottom.

Preferably, the filtering board is circular arc arc-shaped concave shape.

Preferably, one or more lifting ear is additionally provided on the outer wall of institute's top cylinder.

In conclusion the utility model has following technical effect that since the utility model uses above-mentioned technical proposal

(1) filter screen of the utility model can effective filtering solid contaminants, bellmouth filters larger solid impurity, and In under the filtering board effect of arc convex surface, filter hole on filtering board or will be adsorbed on by the impurity absorption of filtering liquid It is interior, reduce the delay of sundries in filtered fluid, to improve the effect of filtering.

(2) filter tunnel of the utility model has the advantages that structurally reasonable, convenient disassembly, convenient for cleaning, is effectively reduced Cause to omit because of air pressure in experimentation or the generation of bubble, generated air or bubble can be arranged rapidly Out, thus from spilling when effectively avoiding liquid excessive.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of filter tunnel of the utility model；

Fig. 2 is the structural schematic diagram of the filtering board of the utility model；

Fig. 3 is the cross-sectional view of the filtering board of the utility model；

In attached drawing, 1- funnel body, 2- container, the top 10- cylinder, 11- tapered transitional, the vertical tube body of 12-, 13- ring Shape protrusion, 14- bulb plunger, 15- strip groove portion, 16- elastic sheet rubber, 17- filtering board, 18- lift portion, and 19- is mentioned Ear, 170- filter hole, 171- bound edge ring.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, referring to the drawings and enumerate excellent Embodiment is selected, the utility model is further described.However, it is necessary to illustrate, many details listed in specification It is specific even without these just for the sake of making reader have a thorough explanation to the one or more aspects of the utility model Details also may be implemented the utility model these aspect.

As shown in Figure 1 and Figure 2, a kind of filter tunnel according to the present utility model, including funnel body 1, the funnel body 1 includes top cylinder 10, and the lower end of the top cylinder 10 has tapered transitional 11, and the bottom end of tapered transitional 11 has downward The lower end outlet of the vertical tube body 12 extended, the vertical tube body 12 is oval longitudal section, in the tapered transitional 11 Upper inner wall on have annular protrusion 13, be placed with filtering board 17 in the annular protrusion 13, the filtering board 17 Be fitted and fixed on the annular protrusion 13 by bulb plunger 14, the funnel body 1 and filtering board 17 be ceramics, Plastics or glass structure；One or more lifting ear 19 is additionally provided on the outer wall of institute's top cylinder 10；In the cone The lateral wall of shape transition part 11 and the direction that taper extends is provided with strip groove portion 15, in the outer of the tapered transitional 11 Side wall is coated with elastic sheet rubber 16, and the width that is coated of the elastic sheet rubber 16 is less than the length in strip groove portion 15, by Air pressure is easy to produce when the open edge of tapered transitional 11 and container 2 contacts, it will influences the rate of filtration or generation Bubble makes to filter liquid spilling, therefore, after strip groove portion 15 is arranged in the lateral wall of the tapered transitional 11, makes sky Atmospheric pressure or bubble rush the discharge of strip groove portion 15, to accelerate the speed of filtering and reduce the generation of air pressure, elasticity Sheet rubber 16 reduces the collision between tapered transitional 11 and the open edge of container 2, while can also be to the opening of container 2 Edge is sealed, and is placed filtered fluid and is overflowed.

Combined with Figure 1 and Figure 2, in the present invention, it is provided centrally with the portion of lifting 18 in the filtering board 17, this is mentioned The lower surface of filtering board 17 is run through in one end of hand 18, which upwardly extends the mouth close to top cylinder 10 Portion will generate air pressure in the cavity that surrounds between filtering board 17 and tapered transitional 11 when being filtered operation, So as to cause often having bubble generation on filtering board 17, therefore the both ends open for lifting portion 18 and it is connected in hollow form, Make to filter the air pressure generated between filter plate 17 and tapered transitional 11 from the discharge of the portion that lifts 18, is carried out clearly when to funnel body 1 When washing, the portion of lifting 18 can be grabbed, filtering board is taken out from annular protrusion 13, thus easy disassembly and cleaning, described The surface of filtering board 17 is evenly distributed with filter hole 170, as shown in figure 3, being provided at 17 edge of filtering board Bound edge ring 171；The filter hole 170 is bellmouth, and the aperture of each bellmouth gradually becomes smaller from top to bottom, the filtering board 17 be circular arc arc-shaped concave shape.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, can also make several improvements and retouch, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims (9)

1. a kind of filter tunnel, it is characterised in that: including funnel body, the funnel body includes top cylinder, on institute top One or more lifting ear is additionally provided on the outer wall of cylinder, the lower end of the top cylinder has tapered transitional, taper The bottom end of transition part has the vertical tube body extended downwardly, and the tapered transitional is contacted with the open edge of container, described There is annular protrusion on the upper inner wall of tapered transitional, be placed with filtering board in the annular protrusion, filtering filter Plate is fitted and fixed on the annular protrusion by bulb plunger, the tapered transitional lateral wall and along taper extend Direction be provided with strip groove portion.

2. a kind of filter tunnel according to claim 1, it is characterised in that: coated in the lateral wall of the tapered transitional Flexible sheet rubber, and the width that is coated of the elastic sheet rubber is less than the length in strip groove portion.

3. a kind of filter tunnel according to claim 1, it is characterised in that: mentioned in being provided centrally with for the filtering board The lower surface of filtering board is run through in the portion of rising, the one end for lifting portion, which upwardly extends close to top cylinder Oral area.

4. a kind of filter tunnel according to claim 3, it is characterised in that: the both ends open for lifting portion and in hollow Shape connection.

5. a kind of filter tunnel according to claim 1, it is characterised in that: the lower end outlet of the vertical tube body is ellipse The longitudal section of shape.

6. a kind of filter tunnel according to claim 1, it is characterised in that: the funnel body and filtering board are pottery Porcelain, plastics or glass structure.

7. a kind of filter tunnel described according to claim 1 or 3 or 6, it is characterised in that: on the surface of the filtering board It is evenly distributed with filter hole, the filtering board edge is provided with bound edge ring.

8. a kind of filter tunnel according to claim 7, it is characterised in that: the filter hole is bellmouth, each taper The aperture in hole gradually becomes smaller from top to bottom.

9. a kind of filter tunnel according to claim 7, it is characterised in that: the filtering board is circular arc arc-shaped concave Shape.