CN212188096U - Bidirectional filter - Google Patents

Abstract

The utility model discloses a two-way filter belongs to the technical field of filter, and it includes casing, fixed lid and filter core, the inside cavity of casing, the filter core insert locate inside the casing, fixed lid cover establish at the casing top and with casing threaded connection, the bottom and the filter core butt of fixed lid, casing, filter core and fixed lid intercommunication set up, the utility model discloses have the purpose that improves the clearance effect of the inside impurity of two-way filter.

Description

Bidirectional filter

Technical Field

The utility model relates to a technical field of filter, in particular to two-way filter.

Background

The filter is an indispensable device on the medium conveying pipeline, and is usually installed at the inlet end of a pressure reducing valve, a pressure relief valve, a constant water level valve or other equipment to eliminate impurities in the medium so as to protect the normal use of the valve and the equipment.

Present can refer to chinese patent that publication number is CN202620833U, it discloses a two-way filter, baffle including hollow casing and in being located the casing, the skeleton, filter screen and clamping ring, the casing left end is equipped with left joint, the casing right-hand member is connected with right joint, the skeleton is connected between baffle and clamping ring, the filter screen cover is on the periphery wall of skeleton, and its both ends are connected respectively on baffle and clamping ring, the baffle left end top is at left joint right-hand member department, the clamping ring right-hand member top is at right joint left-hand member department, the through-hole has been seted up to the casing lower part, be connected with the blowdown on the casing periphery wall that corresponds with the through-hole and connect, the exit that the blowdown connects compresses tightly through the cap nut, the winding has the spiral retainer plate on the periphery wall of filter screen.

The above prior art solutions have the following drawbacks: when the impurity on the clearance filter screen, close the pipeline that left side connects earlier, then open the end cap that the blowdown connects, connect from the right side and let in the medium after that, rely on the medium to scrape impurity from the filter screen and connect the discharge from the blowdown, the clearance to the impurity on the filter screen is thorough inadequately.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two-way filter, reach the purpose that improves the clearance effect of the inside impurity of two-way filter not enough to prior art exists.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a two-way filter, includes casing, fixed lid and filter core, and the inside cavity of casing, filter core insert locate the casing inside, fixed lid cover establish at the casing top and with casing threaded connection, the bottom and the filter core butt of fixed lid, casing, filter core and fixed lid intercommunication setting.

By adopting the technical scheme, when the bidirectional filter is assembled, the filter element is inserted into the cavity of the shell, then the fixing cover is inserted from the open end of the shell, and the fixing cover is in threaded connection with the shell, so that the filter element arranged in the shell is fixed, and the bidirectional filter is convenient to use; when the impurity in the two-way filter is cleaned, the fixing cover is opened, the filter element is taken out from the shell, the fixing cover, the shell and the filter element are cleaned, the filter element is cleaned and then is installed again, and the purpose of improving the cleaning effect of the impurity in the two-way filter is achieved.

The present invention may be further configured in a preferred embodiment as: the filter core includes end, filter screen and filter screen support, and end, filter screen support are established respectively at the both ends of filter screen and are fixed continuous with the filter screen.

Through adopting above-mentioned technical scheme, the both ends of filter screen are arranged in to end and filter screen support, then use electron beam welding or argon arc welding to end, filter screen and filter screen support and weld, strengthen the connection between end, filter screen and the filter screen support, improve the filter core stability in the use, strengthen the filter effect of filter core to the impurity in the medium.

The present invention may be further configured in a preferred embodiment as: the internal diameter of filter screen is greater than the internal diameter that end, filter screen supported, and the filter screen cover is established on end, filter screen support and forms the joint with end, filter screen support.

Through adopting above-mentioned technical scheme, the internal diameter that sets up the filter screen is greater than the internal diameter that end, filter screen supported to establish the both ends cover of filter screen on end and filter screen support, make filter screen and end, filter screen support form the joint, then support end, filter screen and weld, further strengthen being connected that filter screen and end, filter screen support, improve stability and the result of use of filter core in the use.

The present invention may be further configured in a preferred embodiment as: one side of the end head deviating from the filter screen is arranged in a cone shape.

Through adopting above-mentioned technical scheme, set up the end into the cone with the one side that deviates from the filter screen, when the medium flowed in from the one end of end, the cone setting of end made things convenient for the flow of medium, reduces blockking to the medium, ensures the velocity of flow of medium, further improves the result of use of filter core.

The present invention may be further configured in a preferred embodiment as: the end head, the outer surface of the filter screen and the inner wall of the shell are arranged at intervals; the position of the inside of the shell corresponding to the filter screen support is in a step shape, and the filter screen support is arranged at the step shape position of the shell and is clamped with the shell.

By adopting the technical scheme, the medium flows in the interval between the end head, the filter screen and the shell, and impurities in the medium are filtered by the filter screen, so that the effect of removing the impurities is achieved; the filter screen supports and forms the joint with the echelonment of casing, strengthens the stability of being connected between filter screen support and the casing, improves the filter screen simultaneously and supports the sealed effect of cooperation casing to the casing inner chamber, prevents revealing of pressure, further strengthens the stability in use and the high efficiency of filter core.

The present invention may be further configured in a preferred embodiment as: the filter screen supports and is close to top position department and shells inner wall interval setting and forms the standing groove, can dismantle in the standing groove to be provided with sealed the pad, and the lower surface of fixed lid links to each other with sealed upper surface butt that fills up.

Through adopting above-mentioned technical scheme, the filter screen supports and is close to top position department and shells inner wall interval setting and form the standing groove, places sealed the pad in the standing groove, and sealed pad further improves the sealed effect between filter screen support and the casing, and the lower surface of fixed lid and the sealed butt of filling up play fixed effect to sealed the pad, strengthens sealed stability and the high efficiency of filling up in the use.

The present invention may be further configured in a preferred embodiment as: fixed lid, filter screen support and shells inner wall all seted up sealed recess with sealed pad butt position department.

Through adopting above-mentioned technical scheme, fixed lid, sealed recess has all been seted up with sealed pad butt position department to filter screen support and shells inner wall, will seal up the pad and arrange the standing groove in, then use fixed lid to seal up and extrude, sealed pad takes place deformation, make sealed pad and the position department embedding of sealed recess butt seal in the recess, further strengthen sealed pad and fixed lid, filter screen supports and shells inner wall between be connected, realize the sealed of three contact surface, prevent that pressure from revealing, improve two-way filter's leakproofness and stability in use.

To sum up, the utility model discloses following beneficial effect has:

1. the bidirectional filter consisting of the shell, the fixed cover and the filter element is arranged, so that the aim of improving the cleaning effect of impurities in the bidirectional filter is fulfilled;

2. one end of the end is set to be conical, so that the blocking to the medium is reduced, the flow rate of the medium is ensured, and the using effect of the filter element is further improved;

3. through set up sealed the pad in the standing groove, sealed pad improves the sealed effect between filter screen support and the casing, and the stability and the high efficiency of reinforcing two-way filter in the use.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is an enlarged schematic view at a in fig. 2.

In the figure, 1, a housing; 2. a fixed cover; 3. a filter element; 31. a tip; 32. filtering with a screen; 33. a filter screen support; 4. a placement groove; 5. a gasket; 6. the groove is sealed.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a two-way filter, including casing 1, fixed lid 2 and filter core 3, the inside cavity of casing 1, filter core 3 insert locate inside casing 1, fixed lid 2 lid establish at casing 1 top and with casing 1 threaded connection, the bottom and the 3 butts of filter core of fixed lid 2, casing 1, filter core 3 and fixed lid 2 intercommunication set up, reach the purpose that improves the clearance effect of the inside impurity of two-way filter.

Referring to fig. 1, the filter element 3 includes an end 31, a filter screen 32 and a filter screen 32 support, the precision of the filter screen 32 can be 5 μm, 10 μm, 15 μm and 40 μm, and is suitable for filtering different media, the end 31 and the filter screen 32 support are respectively arranged at two ends of the filter screen 32, the inner diameter of the filter screen 32 is larger than the inner diameters of the end 31 and the filter screen 32 support, two ends of the filter screen 32 are sleeved on the end 31 and the filter screen 32 support, so that the filter screen 32 is clamped with the end 31 and the filter screen 32 support, the connection stability between the filter screen 32 and the end 31 and the filter screen 32 support is enhanced, then the end 31, the filter screen 32 and the filter screen 32 support are welded by using electron beam welding or argon arc welding, the connection between the end 31, the filter screen 32 and the filter screen 32 support is enhanced, the stability of the filter element 3 is improved in the using process, the bidirectional filter, the filtering effect of the filter element 3 on impurities in the medium is improved.

Referring to fig. 2, one side of the end 31, which is away from the filter screen 32, is tapered, and when a medium flows in from one end of the end 31, the tapered end 31 facilitates the flow of the medium, reduces the blockage of the medium, ensures the flow rate of the medium, and further improves the use effect of the filter element 3; the outer surfaces of the end head 31 and the filter screen 32 are arranged at intervals with the inner wall of the shell 1, the medium flows in the intervals between the end head 31 and the shell 1 and the filter screen 32 filters impurities in the medium, so that the effect of removing the impurities is achieved; the inside position department that corresponds filter screen 32 and support of casing 1 is the echelonment setting, and filter screen 32 supports the echelonment position department of arranging casing 1 in and forms the joint with casing 1, strengthens the stability of being connected between filter screen 32 support and the casing 1, improves filter screen 32 simultaneously and supports the sealed effect of cooperation casing 1 to the casing 1 inner chamber, prevents revealing of pressure, further strengthens the stability in use and the high efficiency of filter core 3.

Referring to fig. 3, the filter screen 32 is supported at a position close to the top and spaced from the inner wall of the shell 1 to form a placing groove 4, a sealing gasket 5 is detachably arranged in the placing groove 4, the sealing gasket 5 is made of polytetrafluoroethylene, the polytetrafluoroethylene is soft in mechanical property and can deform after being stressed, and has better flexibility under the low-temperature condition, in addition, the polytetrafluoroethylene has better heat resistance, the sealing gasket 5 further improves the sealing effect between the filter screen 32 and the shell 1, the lower surface of the fixing cover 2 is abutted to the sealing gasket 5, a fixing effect is achieved on the sealing gasket 5, and the stability and the high efficiency of the sealing gasket 5 in the using process are enhanced; fixed lid 2, filter screen 32 supports and all seted up sealed recess 6 with sealed 5 butt positions of packing, will seal up 5 places standing groove 4 in, then use fixed lid 2 to seal up 5 extrudees, sealed 5 deformation that takes place, make sealed 5 and the position department embedding of sealed 6 butts of recess seal in the recess 6, further strengthen sealed 5 and fixed lid 2 of packing, filter screen 32 supports and is connected between the 1 inner wall of casing, realize the sealing of three contact surface, prevent pressure leakage, improve two-way filter's leakproofness and stability in use.

The implementation principle of the embodiment is as follows: when the bidirectional filter is used, the welded filter element 3 is inserted into the inner cavity of the shell 1, and the end head 31 of the filter element 3 is clamped with the ladder-shaped inner wall of the shell 1; then the sealing gasket 5 is placed in the placing groove 4, the bottom of the fixing cover 2 is inserted into the shell 1 and is in threaded connection with the shell 1, the bottom of the fixing cover 2 extrudes the sealing gasket 5, the sealing gasket 5 deforms, the position close to the sealing groove 6 is embedded into the sealing groove 6 to form clamping connection, and the sealing effect among the support of the filter screen 32 and the shell 1 and the fixing cover 2 is enhanced; the medium can flow in from either end of the bidirectional filter and flow out from the other end, and the filter screen 32 filters impurities in the medium; when the impurity on the filter screen 32 needs to be cleaned, the fixing cover 2 is opened, the filter element 3 is taken out from the inside of the shell 1, the fixing cover 2, the filter element 3 and the shell 1 are cleaned, the filter element is re-installed after cleaning is finished, and the purpose of improving the cleaning effect of the impurity in the two-way filter is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (7)

1. A bi-directional filter, characterized by: including casing (1), fixed lid (2) and filter core (3), casing (1) inside cavity, inside filter core (3) were inserted and are located casing (1), fixed lid (2) lid was established at casing (1) top and with casing (1) threaded connection, the bottom and filter core (3) butt of fixed lid (2), casing (1), filter core (3) and fixed lid (2) intercommunication setting.

2. A bi-directional filter as recited in claim 1, wherein: the filter element (3) comprises an end head (31), a filter screen (32) and a filter screen (32) support, wherein the end head (31) and the filter screen (32) support are respectively arranged at two ends of the filter screen (32) and are fixedly connected with the filter screen (32).

3. A bi-directional filter according to claim 2, wherein: the internal diameter of filter screen (32) is greater than the internal diameter that end (31), filter screen (32) supported, and end (31), filter screen (32) cover are established and are established on supporting and support with end (31), filter screen (32) and form the joint.

4. A bi-directional filter according to claim 2, wherein: one side of the end head (31) departing from the filter screen (32) is arranged in a cone shape.

5. A bi-directional filter according to claim 2, wherein: the outer surfaces of the end head (31) and the filter screen (32) are arranged at intervals with the inner wall of the shell (1); the position, corresponding to the support of the filter screen (32), in the shell (1) is in a step shape, and the filter screen (32) is supported and arranged at the step shape position of the shell (1) and is clamped with the shell (1).

6. A bi-directional filter according to claim 2, wherein: the filter screen (32) support and be close to top position department and casing (1) inner wall interval setting and form standing groove (4), can dismantle in standing groove (4) and be provided with sealed the pad (5), the lower surface of fixed lid (2) links to each other with the upper surface butt of sealed pad (5).

7. A bi-directional filter according to claim 6, wherein: fixed lid (2), filter screen (32) support and casing (1) inner wall and sealed pad (5) butt position department all seted up sealed recess (6).

Images