CN202052393U

CN202052393U - Reverse cleaning filter

Info

Publication number: CN202052393U
Application number: CN2011201132955U
Authority: CN
Inventors: 倪海环; 倪海哨
Original assignee: ZHEJIANG DONGXING MINING EQUIPMENT Co Ltd
Current assignee: ZHEJIANG DONGXING MINING EQUIPMENT Co Ltd
Priority date: 2011-04-18
Filing date: 2011-04-18
Publication date: 2011-11-30
Anticipated expiration: 2021-04-18

Abstract

The utility model discloses a reverse cleaning filter, which comprises a valve body and filter cores, wherein the front side end of the valve body is provided with a liquid inlet, the back side end of the valve body is provided with a liquid outlet, the left side end of the valve body is provided with a left liquid return opening, the right side end of the valve body is provided with a right liquid return opening, a left filter liquid passage and a right filter liquid passage are also arranged in the valve body, two filter cores are respectively arranged in the left filter liquid passage and the right filter liquid passage, the outlets of the two filter cores and the liquid outlet are mutually connected and communicated, each filter core comprises a body and a filter screen fixed on the body, the body comprises a liquid outlet end seat, a liquid blocking tail seat and a filter pipe positioned between the liquid outlet end seat and the liquid blocking tail seat, a plurality of through holes are arranged on the peripheral wall of the filter pipe, the filter screen is arranged on the outer wall of the filter pipe, the partial screen body of the filter screen is projected in a direction towards the outer side of the filter pipe for forming a U-shaped filter table. The reverse cleaning filter has the advantages that the effective filtering area is larger, and the blockage is not easy to occur.

Description

Anti-filter rinsed

Technical field

The utility model belongs to the coal mine equipment technical field, is specifically related to a kind of anti-filter rinsed that is used for hydraulic support.

Background technology

The working media of mine hydraulic bracket is an emulsion, the cleannes of emulsion are very big to the influence in service life of the whole hydraulic system of each hydraulic cylinder, each valve group and support of hydraulic support, impurity in the emulsion can cause the hydraulic support operation ineffective, out of control, even damages.Therefore, must filter, and through type filter commonly used at present is because filter screen is easy to blocked emulsion; use a period of time to change or to clean, changing or cleaning needs to shut down, and influence is produced; and very inconvenient, solve this technical problem so need use anti-filter rinsed.

Traditional anti-filter rinsed, the outboard end of its filter core exposes to the filtrate channel of valve body, and utilize the exposed junction of filter core that filter core is fixed in the filtrate channel, the shortcoming of this structure is: the comparatively complicated joint of structure need be set on filter core, and its difficulty of processing and cost are all higher.The phenomenon of leakage takes place in the hermetically-sealed construction of classical inverse filter rinsed easily when being used for big flow in addition.

Summary of the invention

The purpose of this utility model provide a kind of effective filtration area more greatly, not susceptible to plugging anti-filter rinsed.。

The technical scheme that realizes the utility model purpose is: a kind of anti-filter rinsed, comprise valve body and filter core, and described valve body front side end offers that inlet, rear side end offer liquid outlet, left-hand end offers left liquid return hole, and right-hand end is provided with right liquid return hole; Also be provided with left filtrate channel and right filtrate channel in the described valve body; The import of described left filtrate channel and inlet and left liquid return hole are communicated with, and are provided with reversing valve core between the import of left filtrate channel and the inlet; The import of described right filtrate channel and inlet and right liquid return hole are communicated with, and are provided with reversing valve core between the import of right filtrate channel and the inlet; Respectively be provided with a filter core in described left filtrate channel and the right filtrate channel, the outlet of these two filter cores and described liquid outlet communicate with each other; Described each filter core comprises main body and the filter screen that is fixed on the main body; Described main body comprises outlet end seat, stifled liquid tailstock and the chimney filter between outlet end seat and stifled liquid tailstock, and described chimney filter peripheral wall is provided with a plurality of open-works; Described filter screen is arranged on the chimney filter outer wall, and the part dictyosome of described filter screen forms U font filter platform towards chimney filter lateral direction projection.

In the such scheme, described U font filter platform runs through the chimney filter outer wall along the chimney filter central axial direction.

In the such scheme, described filter screen comprises a plurality of equally distributed U font filter platforms.

In the such scheme, an end of described filter screen is arranged on the outlet end seat, and the other end is arranged on the stifled liquid tailstock.

The utlity model has positive effect: (1) the utility model passes through the part dictyosome of filter screen towards chimney filter lateral direction projection, form U font filter platform, make when adopting onesize chimney filter to make filter core, can obtain to surpass the actual effective filtration area of traditional filter core several times; Impurity at first is deposited in the outermost part of U font filter platform in addition, and the dictyosome at all the other positions of U font filter this moment platform still can play a role in filtering, and along with accumulated time, impurity piles with whole U font filter platform gradually, just need clean it; So the utility model is compared with the classical inverse filter rinsed, has big, the difficult obstruction of effect filter area, service life than advantages such as length.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is a kind of structural representation of filter core in the anti-filter rinsed shown in Figure 1;

Fig. 3 is the cutaway view of Fig. 2 along the A-A line.

Be labeled as shown in the accompanying drawing: valve body 1, inlet 11, liquid outlet 12, left side liquid return hole 13, right liquid return hole 14, left filtrate channel 15, right filtrate channel 16, reversing valve core 17, reversing valve core 18, filter core 2, outlet 21, main body 4, outlet end seat 41, stifled liquid tailstock 42, chimney filter 43, open-work 431, filter screen 5, U font filter platform 51.

The specific embodiment

(embodiment 1)

Fig. 1 to Fig. 3 has shown a kind of specific embodiment of the present utility model, and wherein Fig. 1 is a kind of structural representation of the present utility model; Fig. 2 is a kind of structural representation of filter core in the anti-filter rinsed shown in Figure 1; Fig. 3 is the cutaway view of Fig. 2 along the A-A line.

Present embodiment is a kind of anti-filter rinsed, sees Fig. 1 and Fig. 3, comprises valve body 1 and filter core 2, and described valve body 1 front side end offers that inlet 11, rear side end offer liquid outlet 12, left-hand end offers left liquid return hole 13, and right-hand end is provided with right liquid return hole 14; Also be provided with left filtrate channel 15 and right filtrate channel 16 in the described valve body 1; The import of described left filtrate channel 15 and inlet 11 and left liquid return hole 13 are communicated with, and are provided with reversing valve core 17 between the import of left filtrate channel 15 and the inlet 11; The import of described right filtrate channel 16 and inlet 11 and right liquid return hole 14 are communicated with, and are provided with reversing valve core 18 between the import of right filtrate channel 16 and the inlet 11; Respectively be provided with a filter core 2 in described left filtrate channel 15 and the right filtrate channel 16, the outlet 21 and the described liquid outlet 12 of these two filter cores 2 communicate with each other; Described each filter core 2 comprises main body 4 and the filter screen 5 that is fixed on the main body 4; Described main body 4 comprises outlet end seat 41, stifled liquid tailstock 42 and the chimney filter 43 between outlet end seat 41 and stifled liquid tailstock 42, and described chimney filter 43 peripheral walls are provided with a plurality of open-works 431; Described filter screen 5 is arranged on chimney filter 43 outer walls, and the part dictyosome of described filter screen 5 forms a plurality of equally distributed U font filter platforms 51 towards chimney filter 43 lateral direction projectioies.

Described U font filter platform 51 runs through chimney filter 43 outer walls along chimney filter 43 central axial direction.

One end of described filter screen 5 is arranged on the outlet end seat 41, and the other end is arranged on the stifled liquid tailstock 42.

Present embodiment by the part dictyosome of filter screen towards chimney filter lateral direction projection, form U font filter platform, make when adopting onesize chimney filter to make filter core, can obtain actual effective filtration area above traditional filter core several times; Impurity at first is deposited in the part between adjacent two U fonts filter platform in addition, and the dictyosome at all the other positions of U font filter this moment platform still can play a role in filtering, and along with accumulated time, after impurity piles with the filter screen most surfaces gradually, just need clean it; So the utility model is compared with the classical inverse filter rinsed, has big, the difficult obstruction of effect filter area, service life than advantages such as length.

Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection domain of the present utility model.

Claims

1. an anti-filter rinsed comprises valve body (1) and filter core (2), and described valve body (1) front side end offers that inlet (11), rear side end offer liquid outlet (12), left-hand end offers left liquid return hole (13), and right-hand end is provided with right liquid return hole (14);

Also be provided with left filtrate channel (15) and right filtrate channel (16) in the described valve body (1); The import of described left filtrate channel (15) and inlet (11) and left liquid return hole (13) are communicated with, and are provided with reversing valve core (17) between the import of left filtrate channel (15) and the inlet (11); The import of described right filtrate channel (16) and inlet (11) and right liquid return hole (14) are communicated with, and are provided with reversing valve core (18) between the import of right filtrate channel (16) and the inlet (11); Respectively be provided with a filter core (2) in described left filtrate channel (15) and the right filtrate channel (16), the outlet (21) and the described liquid outlet (12) of these two filter cores (2) communicate with each other;

It is characterized in that: described each filter core (2) comprises main body (4) and is fixed on filter screen (5) on the main body (4); Described main body (4) comprise outlet end seat (41), stifled liquid tailstock (42) and be positioned at outlet end seat (41) and stifled liquid tailstock (42) between chimney filter (43), described chimney filter (43) peripheral wall is provided with a plurality of open-works (431); Described filter screen (5) is arranged on chimney filter (43) outer wall, and the part dictyosome of described filter screen (5) forms U font filter platform (51) towards chimney filter (43) lateral direction projection.

2. anti-filter rinsed according to claim 1 is characterized in that: described U font filter platform (51) runs through chimney filter (43) outer wall along chimney filter (43) central axial direction.

3. anti-filter rinsed according to claim 1 is characterized in that: described filter screen (5) comprises a plurality of equally distributed U font filter platforms (51).

4. anti-filter rinsed according to claim 1 is characterized in that: an end of described filter screen (5) is arranged on the outlet end seat (41), and the other end is arranged on the stifled liquid tailstock (42).