CN201592014U

CN201592014U - Disc filter

Info

Publication number: CN201592014U
Application number: CN2010201024710U
Authority: CN
Inventors: 林和坤; 王世杰
Original assignee: BEIJING JIEMING ZHICHEN Corp
Current assignee: The water technology Co., Ltd in morning of Beijing Kang Jie
Priority date: 2010-01-27
Filing date: 2010-01-27
Publication date: 2010-09-29
Anticipated expiration: 2020-01-27

Abstract

The utility model discloses a disc filter, which comprises an outer casing, a filter element and a base. The lower end of the outer casing is connected to the base; the filter element is contained in a cavity formed by the outer casing and the base; a connection structure of the outer casing and the base is a rotary connection structure; the outer casing and the base are sealed in end surface manner; seal of the outer casing and the base is changed from axial seal into end surface seal; requirements on ovality of connection circles of two parts are not extremely strict; and a sealing ring with a lip opening on the inner wall is adopted. Installation and disassembly of the disc filter are both extremely convenient, namely the disc filter just needs to be slightly rotated by aligning a positioning hole, the disc filter saves time and labor, has better sealing effect, and simultaneously omits parts such as special clips, or bolts and the like.

Description

A kind of disc filter

Technical field

The utility model belongs to the technical field of water filtration device, refers to a kind of disc filter especially.

Background technology

Disc filter belongs to a kind of in the present various water filtration device, it to cross filter core all be to be enclosed within on the center framework by one pile of all fluted ring-shaped discs of upper and lower surface usually, on have pressure cap to compress to constitute.During filtration: water flows through from outside to inside, and impurity is trapped within disc group outer surface, and during backwash: pressure cap is by jack-up, and the disc group is unclamped, and water is from inside to outside tangentially spouting by playpipe simultaneously, and impurity is rinsed away.Usually filter is made up of filter base and shell and the above-mentioned filter core of crossing.

The Sealing Technology that is connected of existing filter base and shell two parts has Chinese patent 200520108847.8 described great circle cover roundlets, can vertically plug, and therebetween O type circle gets up two parts clampings by special-purpose clamp then; Perhaps dock as two flanges of clear-cut employing as described in the U.S. Pat 6419826.In the filter set process of assembling, when particularly needing to safeguard at the scene, frequent dismounting filter, this design is very inconvenient:

When adopting flange to connect, the dismounting of a lot of bolts and installation be trouble very.

Adopting the characteristics of card connection mode is exactly easy accessibility, but the base of this filter and shell to be connected cylindrical all bigger, general diameter is all greater than 200mm, the very bad control of the ovality of these two circles during injection mould processing, so need to improve die caste, cause expense to increase; Perhaps adopt tight fit, require great effort very much when causing dismounting and filter housing being installed, even need to use specific purpose tool, very inconvenient.

The utility model content

Main purpose of the present utility model is to provide this disc filter dismounting of a kind of disc filter very convenient in order to solve the problems of the technologies described above, and die cost reduces.

To achieve these goals, the utility model is by the following technical solutions:

A kind of disc filter, it comprises: shell, mistake filter core and base, and described shell lower end connects this base, and this is crossed filter core and is installed with in the cavity of this shell and base formation, the syndeton of described shell and described base is rotary syndeton, is end face seal between this shell and this base.

Described shell comprises outer cover body and cover dish, and the middle part of this cover dish is provided with ladder hole, and the top aperture is solidly set on outer cover body lower end outside wall surface, and the lower surface of described outer cover body is concordant with the terrace of cover dish.

Described outer cover body and described cover dish are one-body molded.

Evenly spacer ring is provided with some projections on the outside wall surface of the upper end of described base, forms breach between adjacent projections; The even spacer ring of described cover dish macropore lower end internal face is provided with some boss, form passage between the adjacent lands, above boss, be provided with an annular space that holds projection, on the big wall surface of the hole between annular space and the terrace, be provided with an annular groove of laying sealing ring, the upper side of annular groove is roughly concordant with terrace, and the downside of annular groove is roughly concordant with the end face of the projection that is contained in annular space.

Described projection and boss size are roughly the same, and breach and channel size are roughly the same, and the width of projection is slightly less than width of channel.

The inwall of described sealing ring is provided with annular lip, and that the cross section of sealing circle is is inverted Y-shaped, X-shaped, C shape or inverted U.

Described projection and described base are one-body molded.

Described boss and described cover dish are one-body molded.

Outer wall is provided with the indication otic placode in described cover dish lower end, and this indication otic placode is provided with locating hole, is provided with the base otic placode corresponding with indicating otic placode on base, is provided with the following locating hole corresponding with last locating hole on the base otic placode.

The beneficial effects of the utility model: the sealing of shell and base changes end face seal into by axial seal, the requirement that two parts is connected the ovality of circle is not strict, adopt inwall to have the sealing ring of lip, installing/dismounting is all very convenient, only need the commentaries on classics gently of contrast locating hole, time saving and energy saving, sealing effectiveness is also better, has saved parts such as special-purpose clamp or bolt simultaneously again.

Description of drawings

Describe preferred forms of the present utility model in detail below in conjunction with accompanying drawing;

Fig. 1 is a three-dimensional appearance structural representation of the present utility model;

Fig. 2 is the utility model cross-sectional view;

Fig. 3 is the decomposition texture schematic diagram of shell of the present utility model, sealing ring and base;

Fig. 4 is the structure for amplifying schematic diagram (not being with sealing ring) at A place among Fig. 2;

Fig. 5 is the sectional drawing of the sealing ring that the utility model adopted.

The specific embodiment

As shown in Figures 1 to 4, a kind of disc filter, it comprises: shell 1, base 2 and mistake filter core 3, shell 1 lower end connects base 2, crossing filter core 3 is installed with in the cavity of shell 1 and base 2 formations, the syndeton of shell 1 and base 2 is connected by existing bolt or fixes to connect and becomes simple rotary syndeton, is end face seal between shell 1 and the base 2, and this end face seal has replaced existing axial seal.

Understructure and the shell mechanism of realizing rotary syndeton are described below: rotary syndeton is that shell 1 and base 2 are fixed together both by simply relatively rotating, shell 1 comprises outer cover body 11 and cover dish 12, the middle part of cover dish 12 is provided with ladder hole, the top aperture is solidly set on outer cover body 11 lower end outside wall surface, and the lower surface of outer cover body 11 is concordant with the terrace 12a of cover dish 12.It is 12 one-body molded that outer cover body 11 and cover coil.

Evenly spacer ring is provided with some projections 21 on the outside wall surface of the upper end of base 2, and the end face of projection 21 is concordant with the end face of base 2, forms breach 22 between adjacent projections 21.Projection 21 is one-body molded with base 2.Cover coils the 12 macropore lower end even spacer rings of internal face and is provided with some boss 12b, and the bottom surface of boss 12b is concordant with the lower surface of cover dish 12, forms passage 12c between the adjacent lands 12b.It is 12 one-body molded that boss 12b and cover coil.Above boss 12b, be provided with an annular space 20 that holds projection 21.Be provided with an annular groove 14 of laying sealing ring 4 on the big wall surface of the hole between annular space 20 and the terrace 12a, the upper side of annular groove 14 is concordant with terrace 12a, and the downside of annular groove 14 is concordant with the end face of the projection 21 that is contained in annular space 20.

As shown in Figure 5, be the sectional schematic diagram of the employed sealing ring of the utility model.The inwall of sealing ring 4 is provided with annular lip 41, and that the cross section of sealing ring is is inverted Y-shaped, X-shaped, C shape or inverted U.

Projection 21 is roughly the same with boss 12b size, and breach 22 is roughly the same with passage 12c size, and the width of projection 21 is slightly less than the width of passage 12c.

Judge for clear whether boss 12b tightly catches on projection 21, coil 12 lower end outer walls at cover and be provided with indication otic placode 15, this indication otic placode 15 is provided with locating hole 16, and the bottom surface of indication otic placode 15 is concordant with the lower surface of cover dish 12, and it is 12 one-body molded that this indication otic placode 15 and cover coil; Be provided with and indicate the base otic placode 25 of otic placode 15 correspondences on base 2, base otic placode 25 is provided with the following locating hole 26 corresponding with last locating hole 16, and base otic placode 25 is one-body molded with base 2.During installation, only need make locating hole 16 align down locating hole 26, at this moment boss 12b just tightly catches on projection 21.

When shell 1 and base 2 are installed, shell 1 presses down the corresponding projection 21 of passage 12c, the corresponding breach 22 of while boss 12b, make projection 21 pass passage 12c and enter annular space 20, rotate very low-angle then, last locating hole 16 and following locating hole 26 align, and this moment, projection 21 was pressed on the boss 12b, projection 21 can be caught on firmly by boss 12b, and sealing ring 4 is squeezed in the space that annular groove 14, outer cover body 11 lower surfaces and base 2 end faces are surrounded simultaneously.During the filter interior pressurising, pressure can make the lip of sealing ring lip both sides overlay tightly at outer cover body 11 lower surfaces and base 2 end faces, and annular groove 14 can be fixed sealing ring 4 simultaneously, reaches good sealing effectiveness.Sealing ring 4 is a flat, owing to adopt the end sealing, easy accessibility is easy.

The above only is in order to explain preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to utility model according to this; the utility model can also have other malformations, needs only shell and being connected of base adopts rotary syndeton and end face seal all to drop in the protection domain of the present utility model.

Claims

1. disc filter, it comprises: shell, mistake filter core and base, described shell lower end connects this base, this is crossed filter core and is installed with in the cavity of this shell and base formation, it is characterized in that: the syndeton of described shell and described base is rotary syndeton, is end face seal between this shell and this base.

2. disc filter according to claim 1, it is characterized in that: described shell comprises outer cover body and cover dish, the middle part of this cover dish is provided with ladder hole, and the top aperture is solidly set on outer cover body lower end outside wall surface, and the lower surface of described outer cover body is concordant with the terrace of cover dish.

3. disc filter according to claim 2 is characterized in that: described outer cover body and described cover dish are one-body molded.

4. according to claim 2 or 3 described disc filters, it is characterized in that: evenly spacer ring is provided with some projections on the outside wall surface of the upper end of described base, forms breach between adjacent projections; The even spacer ring of described cover dish macropore lower end internal face is provided with some boss, form passage between the adjacent lands, above boss, be provided with an annular space that holds projection, on the big wall surface of the hole between annular space and the terrace, be provided with an annular groove of laying sealing ring, the upper side of annular groove is roughly concordant with terrace, and the downside of annular groove is roughly concordant with the end face of the projection that is contained in annular space.

5. disc filter according to claim 4 is characterized in that: described projection and boss size are roughly the same, and breach and channel size are roughly the same, and the width of projection is slightly less than width of channel.

6. according to claim 4 or 5 described disc filters, it is characterized in that: the inwall of described sealing ring is provided with annular lip, and that the cross section of sealing circle is is inverted Y-shaped, X-shaped, C shape or inverted U.

7. disc filter according to claim 6 is characterized in that: described projection and described base are one-body molded.

8. disc filter according to claim 7 is characterized in that: described boss and described cover dish are one-body molded.

9. disc filter according to claim 8, it is characterized in that: outer wall is provided with the indication otic placode in described cover dish lower end, this indication otic placode is provided with locating hole, is provided with the base otic placode corresponding with indicating otic placode on base, is provided with the following locating hole corresponding with last locating hole on the base otic placode.