CN219110995U

CN219110995U - Urea filter screen

Info

Publication number: CN219110995U
Application number: CN202320044279.8U
Authority: CN
Inventors: 胡孙正
Original assignee: Wenzhou Puxing Locomotive Parts Co ltd
Current assignee: Wenzhou Puxing Locomotive Parts Co ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-06-02
Anticipated expiration: 2033-01-05

Abstract

The application discloses urea filter screen includes: outer skeleton, install the inner skeleton in outer skeleton, its characterized in that still includes: an outer filter screen cloth mounted on the outer frame; an inner filter screen cloth mounted on the inner frame; the pipe inlet is arranged at the top end of the outer framework; the inlet pipe orifice comprises: the mounting groove is arranged at the top end of the pipe inlet; a groove provided on an inner wall of the installation groove; a seal ring installed in the installation groove; a compression ring mounted on the seal ring; a protrusion provided on an outer wall of the pressing ring; the protrusions are used for being matched with the grooves in a clamping mode, in daily use, through the arrangement of the outer filter screen cloth and the inner filter screen cloth, the filter screen has double-layer filtering, and the filtering effect is improved; through setting up of sealing washer and clamping ring, make into mouth of pipe and urea union coupling make the leakproofness better.

Description

Urea filter screen

Technical Field

The utility model relates to a urea filter screen.

Background

The urea water supply assembly in the vehicle urea water tank is provided with a filter screen on a water pipe for supplying urea water due to more impurities, and the impurities are filtered through the filter screen.

In order to facilitate the replacement of a filter screen under the condition of filter screen blockage, for example, an arc-shaped 3D urea filter screen assembly with the patent number of CN216170319U comprises a filter outer shell frame, a filter inner shell frame and filter screen cloth, wherein the filter outer shell frame comprises an arc-shaped top outer shell plate, an arc-shaped bottom outer frame, a left arc vertical plate and a right arc vertical plate, the left end and the right end of the top outer shell plate are respectively and integrally connected with the left arc vertical plate and the right arc vertical plate, and the bottoms of the left arc vertical plate and the right arc vertical plate are integrally connected with the left end and the right end of the bottom outer frame; the filtering inner shell frame comprises a bottom seat plate, a left inner vertical plate, a right inner vertical plate and a top inner seat plate, wherein the bottom seat plate is attached to the bottom outer frame; the filter inner shell frame is inserted into the filter outer shell frame, and the filter screen cloth is clamped between the filter outer shell frame and the filter inner shell frame.

The utility model has reasonable structural design, is convenient for quick assembly and disassembly of the filter screen cloth, and is convenient for subsequent cleaning and replacement of the filter screen cloth; the filter screen cloth structural design is reasonable, can effectively improve urea filtration precision, has increased the dust holding volume, but its defect that exists has:

1. the filter screen cloth is clamped between the filter outer shell frame and the filter inner shell frame, and the filtering effect of the single filter screen cloth is low;

2. when one of the filter outer shell frame and the filter inner shell frame is damaged or loosened, the filter cloth clamped between the filter outer shell frame and the filter inner shell frame can fall off to lose the filtering effect.

Disclosure of Invention

The utility model aims to solve one of the technical problems existing in the prior art.

The application provides a urea filter screen, include: outer skeleton, install the inner skeleton in outer skeleton, its characterized in that still includes:

an outer filter screen cloth mounted on the outer frame;

an inner filter screen cloth mounted on the inner frame.

And the filter tanks are respectively arranged on the side walls of the outer framework and the inner framework.

The exoskeleton comprises:

the hollow groove is arranged on the outer framework;

the hollow groove is used for installing the inner framework;

the pipe inlet is arranged at the top end of the outer framework.

The inlet pipe orifice comprises:

the mounting groove is arranged at the top end of the pipe inlet;

and the groove is arranged on the inner wall of the mounting groove.

A seal ring installed in the installation groove;

a compression ring mounted on the seal ring;

a protrusion provided on an outer wall of the pressing ring;

wherein, the protruding cooperation of being used for with recess joint.

The inner skeleton includes:

a limit step arranged at the bottom end of the inner framework;

the pipe groove is arranged on the limiting step;

wherein, the central hole of the pipe groove is consistent with the central hole of the pipe inlet.

The first buckling part is arranged at one end of the limiting step;

the second buckling part is arranged at the other end of the limiting step.

An opening is provided on the second fastening portion.

The gland is arranged on the pipe inlet;

wherein, the gland adopts an open plastic structure with an opening at the upper end.

A ring groove arranged on the outer wall of the gland;

and the clamping hoop is clamped on the annular groove.

The beneficial effects of the utility model are as follows:

1. through the setting of outer filter screen cloth and interior filter screen cloth, make the filter screen have double-deck filtration, filtering impurity that can be better improves the filter effect.

2. Through the setting of outer filter screen cloth and interior filter screen cloth, when damage appears in interior/outer skeleton, only can influence a filter screen cloth, holistic filter effect can not disappear.

3. Through setting up of sealing washer and clamping ring, make mouth of pipe and urea union coupling make the leakproofness better, effectually prevent that urea from leaking.

Drawings

FIG. 1 is an elevation view of a urea filter screen according to an embodiment of the present disclosure;

FIG. 2 is a top view of a urea filter screen according to an embodiment of the present disclosure;

FIG. 3 is a schematic perspective view of an inner skeleton according to an embodiment of the present disclosure;

fig. 4 is a front view of a gland according to embodiments of the present application.

Reference numerals

1-outer skeleton, 2-inner skeleton, 3-outer filter screen cloth, 4-inner filter screen cloth, 5-filter tank, 6-hollow tank, 7-inlet pipe orifice, 8-mounting groove, 9-groove, 10-sealing ring, 11-clamping ring, 12-bulge, 13-limit step, 14-pipe groove, 15-first buckling part, 16-second buckling part, 17-opening, 18-gland, 19-ring groove, 20-clamp, 21-fixing mechanism, 22-first clamping hole, 23-second clamping hole and 24-urea pipe.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The server provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.

Example 1:

as shown in fig. 1 to 3, an embodiment of the present application provides a urea filter screen, including: the outer skeleton 1, install the inner skeleton 2 in outer skeleton 1, its characterized in that still includes: an outer screen cloth 3 mounted on the outer frame 1; an inner screen cloth 4 mounted on the inner frame 2; a plurality of filter tanks 5 which are respectively arranged on the side walls of the outer framework 1 and the inner framework 2; the exoskeleton 1 includes: a hollow groove 6 which is arranged on the outer framework 1; wherein, the hollowed-out groove 6 is used for installing the inner framework 2.

Further, an inlet 7 is provided at the top end of the outer frame 1; the inlet nozzle 7 includes: a mounting groove 8 provided at the top end of the inlet pipe orifice 7; a groove 9 provided on the inner wall of the installation groove 8; a seal ring 10 mounted in the mounting groove 8; a pressing ring 11 mounted on the seal ring 10; a projection 12 provided on an outer wall of the pressing ring 11; wherein the protrusion 12 is adapted to be snap-fit with the recess 9. The inner frame 2 includes: a limit step 13 arranged at the bottom end of the inner skeleton 2; a pipe groove 14 provided on the limit step 13; wherein the central hole of the pipe groove 14 is consistent with the central hole of the pipe inlet 7.

In this embodiment of the present application, owing to adopted foretell structure, a urea filter screen comprises exoskeleton 1 and install the inner frame 2 at exoskeleton 1, interior/exoskeleton is circular-arc structure, install on exoskeleton 1 at outer filter screen cloth 3, install interior filter screen cloth 4 on the inner frame 2, owing to the bottom of exoskeleton 1 is provided with hollow groove 6, inner frame 2 just can install in exoskeleton 1, therefore urea filter screen mechanism has two-layer filter screen cloth, two-layer filter screen cloth can be better filter the impurity in the urea to when interior/exoskeleton has one side to damage, the filter screen cloth of another side still can continue to guarantee the filter effect. A plurality of filter tanks 5 are arranged on the side wall of the inner/outer framework, each filter tank 5 divides the side wall of the framework into a plurality of filter areas, and each filter tank 5 is provided with a filter screen cloth to achieve the filtering effect. The top of exoskeleton 1 is provided with into mouth of pipe 7, advances mouth of pipe 7 and is used for the inserted hole of urea pipe 24, in order to avoid urea pipe 24 to drop, is provided with mounting groove 8 at the top of advancing mouth of pipe 7, and the inner wall of mounting groove 8 is provided with recess 9, installs mounting groove 8 with sealing washer 10 in, reuse clamping ring 11 presses on sealing washer 10, is provided with protruding 12 on the outer wall of clamping ring 11, protruding 12 and recess 9 joint cooperation effectually prevent dropping of clamping ring 11, has improved the leakproofness of advancing mouth of pipe 7. The bottom of inner skeleton 2 is provided with spacing step 13, and boss part just installs in the fretwork groove 6 of outer skeleton 1, just so can make inner skeleton 2 and outer skeleton 1 install closely, still is provided with tube groove 14 on spacing step 13, and the centre bore of tube groove 14 is unanimous with the centre bore of mouth of pipe 7 of advancing, can not be eccentric in order to make urea pipe 24 installation, and leads to urea pipe 24 installation unstable and leak.

Example 2:

as shown in fig. 3, in this embodiment, in addition to including the structural features of the foregoing embodiment, the present embodiment further includes: a first buckle part 15 provided at one end of the limit step 13; a second buckling part 16 arranged at the other end of the limiting step 13; an opening 17 provided on the second fastening portion 16.

In this embodiment of the application, owing to adopted foretell structure, the filter screen needs to filter the impurity, but owing to the impurity is more, usually need regularly change the filter screen, for the change of convenient filter screen, one end at spacing step 13 is provided with first knot portion 15, the other end is provided with second knot portion 16, be provided with opening 17 on second knot portion 16, the setting of opening 17 makes second knot portion 16 rich in elasticity, urea filter screen need install on the mounting bracket, be provided with fixed establishment 21 on the mounting bracket, spacing step 13 installs on fixed establishment 21, fixed establishment 21 is an arc stationary plane, be provided with first draw-in hole 22 on the one end of arc stationary plane, the other end is provided with second draw-in hole 23, first knot portion 15 is installed in first draw-in hole 22, second knot portion 16 is installed in second draw-in hole 23, during the dismouting, first knot portion 15 has been installed in first draw-in hole 22, because second knot portion 16 has opening 17, second knot portion 16 is elasticity, so install and press from both sides tight second knot portion 16 and put into second knot portion 16 again in the hole 23, second knot portion 16 is again can be more convenient for the operator to detach, the second knot portion is more in the second knot portion 16 is released from the hole of first and is more convenient for the change, the second knot portion is more convenient to take out from the second knot portion 16.

Example 3:

as shown in fig. 4, in this embodiment, in addition to including the structural features of the foregoing embodiment, the present embodiment further includes: a gland 18 disposed on the inlet orifice; wherein, the gland 18 adopts an open plastic structure with an open upper end; a ring groove 19 provided on the outer wall of the gland 18; and a clip 20 which is clamped to the ring groove 19.

In this embodiment of the present application, owing to adopted foretell structure, be provided with gland 18 on advancing the mouth of pipe, gland 18 is in order to avoid the urea pipe 24 to receive the influence of external force and drop with urea filter screen in-process that uses, gland 18's upper end is open-ended, open-ended makes gland 18 rich in elasticity, it is not fragile under the effect of pressure, be provided with annular 19 on gland 18's outer wall moreover, annular 19 is used for fixed clamp 20, under the effect of clamp 20, not only can fix gland 18, can be the inner wall of gland 18 and laminating of urea pipe 24 moreover, increased the frictional force between gland 18 and the urea pipe 24, avoid urea pipe 24 pine to take off.

Example 4:

in this embodiment, in addition to including the structural features of the foregoing embodiment, it further includes: the framework is made of PA66 nylon material.

In this embodiment of the application, because the above-mentioned structure is adopted, urea is diesel engine car and only needs to use, and diesel engine car needs to rely on urea to purify tail gas, and the intensity of urea filter screen is still to be oil-resistant, so the material that the skeleton selected for use is PA66 nylon material, and PA66 material has good mechanical strength, excellent toughness, oil resistance.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A urea filter screen comprising: exoskeleton (1), install inner skeleton (2) in exoskeleton (1), its characterized in that still includes:

an outer filter screen cloth (3) mounted on the outer frame (1);

an inner filter mesh cloth (4) mounted on the inner frame (2).

2. A urea filter according to claim 1, further comprising:

and the filter tanks (5) are respectively arranged on the side walls of the outer framework (1) and the inner framework (2).

3. A urea filter screen according to claim 1, characterized in that the exoskeleton (1) comprises:

a hollow groove (6) which is arranged on the outer framework (1);

wherein the hollowed-out groove (6) is used for installing the inner framework (2);

and the pipe inlet (7) is arranged at the top end of the outer framework (1).

4. A urea filter according to claim 3, characterized in that the inlet nozzle (7) comprises:

a mounting groove (8) which is arranged at the top end of the pipe inlet (7);

and the groove (9) is arranged on the inner wall of the mounting groove (8).

5. The urea filter according to claim 4, further comprising:

a seal ring (10) mounted in the mounting groove (8);

a pressure ring (11) mounted on the seal ring (10);

a protrusion (12) provided on the outer wall of the pressing ring (11);

wherein the bulge (12) is used for being matched with the groove (9) in a clamping way.

6. A urea filter according to claim 3, characterized in that the inner skeleton (2) comprises:

the limiting step (13) is arranged at the bottom end of the inner framework (2);

a pipe groove (14) which is arranged on the limit step (13);

wherein the central hole of the pipe groove (14) is consistent with the central hole of the pipe inlet (7).

7. The urea filter of claim 6, further comprising:

a first buckle part (15) arranged at one end of the limit step (13);

and the second buckling part (16) is arranged at the other end of the limiting step (13).

8. The urea filter of claim 7, further comprising:

an opening (17) provided in the second fastening portion (16).

9. A urea filter according to claim 3, further comprising:

a gland (18) arranged on the inlet (7);

wherein, the gland (18) adopts an open plastic structure with an open upper end.

10. A urea filter according to claim 9, further comprising: a ring groove (19) provided on the outer wall of the gland (18);

and a clip (20) which is clamped on the ring groove (19).