CN214680349U

CN214680349U - Front filter

Info

Publication number: CN214680349U
Application number: CN202120865943.6U
Authority: CN
Inventors: 王国陈
Original assignee: Cixi Xincheng Sanitary Ware Co ltd
Current assignee: Cixi Xincheng Sanitary Ware Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-12
Anticipated expiration: 2031-04-25

Abstract

The utility model relates to a filter, in particular to a pre-filter, which comprises a cylindrical filter element, a filter cartridge, a connecting seat, a connecting sleeve and a bracket seat, wherein the top of the filter cartridge is provided with a filter cavity and a first external thread, the bottom of the filter cartridge is provided with a water inlet joint, the water inlet joint is provided with a water inlet hole communicated with the filter cavity, and the filter element is inserted into the filter cavity and communicated with the water inlet hole; the bottom of the connecting seat is provided with a connecting column, the connecting column is provided with a connecting groove, the connecting column is inserted into the top of the filter cavity, and the top is provided with a water outlet hole communicated with the connecting groove; the connecting sleeve is inserted on the connecting seat and connected with the filter cylinder; the bottom of stake seat is equipped with a plurality of cradling pieces, and the cradling piece pressure is in the bottom of spread groove, and the cradling piece is used for filter chamber and apopore to communicate with each other, and the stake seat is used for fixing the filter core in the filter chamber, and the both ends of sealed filter core. This leading filter simple structure, easy dismounting, sealing performance are good, only need pull down the adapter sleeve when changing the filter core to extract the connecting seat and can change the filter core, the filter core is changed conveniently.

Description

Front filter

Technical Field

The utility model relates to a filter, especially leading filter.

Background

The front filter can be used at water inlets such as a water heater and a water faucet and is used for filtering water, filtering impurities, purifying water and particularly filtering secondary water supply. Can also be used for filtering the inlet water of the washing machine and the shower head. The filter element of the front filter needs to be replaced after the front filter is used for a period of time, but the existing filter has more parts, complex structure and inconvenient disassembly and assembly.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a part is few, simple structure, easy dismounting's leading filter, and concrete technical scheme is:

the prefilter, including the filter core of cylinder, still includes: the filter cartridge comprises a filter cartridge, wherein the top of the filter cartridge is provided with a filter cavity and a first external thread, the bottom of the filter cartridge is provided with a water inlet joint, the water inlet joint is provided with a water inlet hole and a second external thread, the water inlet hole is communicated with the filter cavity, and the filter cartridge is inserted into the filter cavity and is communicated with the water inlet hole; the bottom of the connecting seat is provided with a connecting column, the connecting column is provided with a connecting groove, the connecting column is inserted into the top of the filter cavity, the top of the connecting seat is provided with a water outlet hole, the water outlet hole is communicated with the connecting groove, and the water outlet hole is provided with a second internal thread; the connecting sleeve is provided with a first internal thread, is inserted on the connecting seat and is connected with the first external thread through the first internal thread; the bracket base is arranged at the bottom of the bracket base, the bracket base is positioned between the connecting seat and the filter element, the bracket rods press the bottoms of the connecting grooves, the bracket rods are used for communicating the filter cavity with the water outlet holes, and the bracket base is used for fixing the filter element in the filter cavity and sealing the two ends of the filter element.

Through adopting above-mentioned technical scheme, the cartridge filter is used for installing filter core, connecting seat, adapter sleeve and support frame seat, simple structure. The water inlet connector of the filter cartridge is used for being connected with a water pipe, and the first external thread at the top is conveniently connected with the connecting sleeve.

The connecting seat and the bracket seat are used for fixing the filter element, wherein the bracket seat is also used for communicating the filter cavity with the water outlet hole, so that filtered water can flow out of the water outlet hole.

The number of parts is small, the assembly and disassembly are convenient, and the filter element is easy and quick to replace.

Preferably, the bottom of the filter cavity is provided with a positioning ring, and the filter element is inserted on the positioning ring.

Through adopting above-mentioned technical scheme, the holding ring can fix a position the filter core to guarantee the hole and the inlet opening coaxial line of filter core, easy to assemble, and can guarantee that the position of filter core does not change in the use, prevent to take place the filter core position change and cause the bottom of filter core and filter chamber to produce the clearance, cause unsealed, the holding ring can improve sealed reliability, and then guarantee reliable filtration.

The filter element is characterized by further comprising a sealing ring, a sealing groove is formed in the connecting column, and the sealing ring is installed in the sealing groove and used for sealing the filter cavity.

Through adopting above-mentioned technical scheme, the sealing washer is used for sealed spliced pole and filter chamber, prevents to leak.

Preferably, the top of the bracket base is provided with a positioning column, and the filter element is inserted on the positioning column.

Through adopting above-mentioned technical scheme, the reference column makes things convenient for the installation of a support seat, avoids the position of a support seat to change to guarantee the reliable connection between a support seat and the filter core, and the reference column can improve the leakproofness between a support seat and the filter core.

Furthermore, a limiting ring is arranged on the connecting column and clamped at the top of the filter cylinder.

Through adopting above-mentioned technical scheme, the spacing ring is convenient to inject the degree of depth that the spliced pole inserted the filter chamber, prevents to crush the filter core.

Preferably, the top of the connecting seat is provided with a hexagonal prism, and the water outlet hole is formed in the hexagonal prism.

Through adopting above-mentioned technical scheme, the hexagonal prism makes things convenient for the leading filter of spanner dismouting.

Preferably, the diameter of the bracket base is the same as that of the connecting groove, and the bracket base is provided with a communicating hole which is used for communicating the connecting groove with the filtering cavity.

Through adopting above-mentioned technical scheme, because the diameter of a frame foundation is the same with the diameter of spread groove, consequently can fix a position a frame foundation to realize the axial positioning of filter core, make the hole and the inlet opening of filter core keep the coaxial line, the easy to assemble filter core aligns the filter core when need not the installation, has reduced the assembly degree of difficulty of filter core, realizes installing fast.

Further, the communication holes are arranged in a plurality of annular arrays.

By adopting the technical scheme, the flow is ensured by the plurality of communicating holes, and the condition of flow limitation is avoided.

Compared with the prior art the utility model discloses following beneficial effect has:

the utility model provides a leading filter is only five parts, simple structure, easy dismounting and sealing performance are good, only need pull down the adapter sleeve during the renew cartridge to extract the connecting seat and can renew cartridge, the filter core is changed conveniently.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a cross-sectional view of the first embodiment;

FIG. 3 is a schematic diagram of an exploded structure of the first embodiment;

FIG. 4 is a cross-sectional view of the filter cartridge;

FIG. 5 is a schematic view of the connecting socket;

FIG. 6 is a schematic structural diagram of a bracket holder according to the first embodiment;

FIG. 7 is a sectional view of the second embodiment;

fig. 8 is a plan view of the holder according to the second embodiment.

Detailed Description

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

Example one

As shown in fig. 1 to 6, the pre-filter includes a filter element 5, a filter cartridge 1, a connecting seat 3, a connecting sleeve 2 and a bracket seat 4. Wherein the filter element 5 is cylindrical. The top of cartridge filter 1 is equipped with filter chamber 16 and first external screw thread 11, and the bottom of cartridge filter 1 is equipped with water supply connector 13, is equipped with inlet opening 15 and second external screw thread on the water supply connector 13, and inlet opening 15 communicates with each other with filter chamber 16, and filter core 5 inserts in filter chamber 16, and communicates with each other with inlet opening 15.

The top of the connecting seat 3 is provided with a hexagonal prism 34, the hexagonal prism 34 is provided with a water outlet hole 31, and the water outlet hole 31 is provided with a second internal thread; the bottom of the connecting base 3 is provided with a connecting column 36, the connecting column 36 is provided with a connecting groove 35 communicated with the water outlet hole 31, and the connecting column 36 is inserted into the top of the filter cavity 16. The hexagonal prism 34 facilitates the disassembly and assembly of the pre-filter by a wrench.

The connecting sleeve 2 is provided with a first internal thread 21, the connecting sleeve 2 is inserted on the connecting base 3 and is connected with the first external thread 11 through the first internal thread 21, and the connecting base 3 is fixed on the filter cartridge 1 by the connecting sleeve 2.

The bottom of support seat 4 is arranged in a circular array and is equipped with a plurality of cradling pieces 42, and support seat 4 is located between connecting seat 3 and filter core 5, and cradling piece 42 presses in the bottom of spread groove 35, and cradling piece 42 is used for filter chamber 16 to communicate with each other with apopore 31, and support seat 4 is used for fixing filter core 5 in filter chamber 16, and sealed filter core 5's both ends.

The filter cartridge 1 is used for installing the filter element 5, the connecting seat 3, the connecting sleeve 2 and the bracket seat 4, and has simple structure. The water inlet joint 13 of the filter cartridge 1 is used for connecting with a water pipe, and the first external thread 11 at the top is conveniently connected with the connecting sleeve 2.

The connecting base 3 and the support base 4 are used for fixing the filter element 5, wherein the support base 4 is also used for communicating the filter chamber 16 with the water outlet hole 31, so that filtered water can flow out of the water outlet hole 31.

The number of parts is small, the assembly and disassembly are convenient, and the filter element 5 is easy and quick to replace.

The filter cavity also comprises a sealing ring, wherein a sealing groove 32 is arranged on the connecting column 36, and the sealing ring is arranged in the sealing groove 32 and used for sealing the filter cavity 16. The sealing ring is used for sealing the connecting column 36 and the filter cavity 16 to prevent leakage.

The connecting column 36 is further provided with a limiting ring 38, and the limiting ring 38 is clamped at the top of the filter cartridge 1. The stop collar 38 facilitates limiting the depth of insertion of the connecting post 36 into the filter cavity 16, preventing crushing of the filter element 5.

Example two

On the basis of the first embodiment, the bottom of the filter cavity 16 is provided with a positioning ring 14, and the filter element 5 is inserted on the positioning ring 14.

The holding ring 14 can fix a position filter core 5 to guarantee filter core 5's hole and 15 coaxial lines of inlet opening, easy to assemble, and can guarantee filter core 5's position not change in the use, prevent to take place filter core 5 position change and cause filter core 5 and filter chamber 16's bottom to produce the clearance, cause unsealed, the holding ring 14 can improve the sealed reliability of filter core 5, and then guarantee reliable filtration.

The top of the bracket seat 4 is provided with a positioning column 41, and the filter element 5 is inserted on the positioning column 41. The reference column 41 makes things convenient for the installation of a support base 4, avoids the position of the support base 4 to change to guarantee the reliable connection between the support base 4 and the filter element 5, and the reference column 41 can improve the leakproofness between the support base 4 and the filter element 5.

The positioning rings 14 and the positioning columns 41 realize the positioning of the two ends of the filter element 5, the filter element 5 cannot change in position in the use process, and the filtering is reliable.

EXAMPLE III

On the basis of any one of the above embodiments, the diameter of the support base 4 is the same as that of the connecting groove 35, and the communication hole 43 is formed in the support base 4, and the connecting groove 35 is used for communicating with the filter chamber 16 through the communication hole 43. The communication holes 43 are provided in plural and arranged in an annular array. The plurality of communication holes 43 ensure the flow rate, and avoid the occurrence of flow restriction.

Because the diameter of a support seat 4 is the same with the diameter of the connecting groove 35, the support seat 4 can be positioned, so that the axial positioning of the filter element 5 is realized, the hole of the filter element 5 and the water inlet hole 15 are kept coaxial, the filter element 5 is convenient to install, the filter element 5 is aligned without installation, the assembly difficulty of the filter element 5 is reduced, and quick installation is realized.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the claims of the present invention.

Claims

1. Prefilter, including cylindrical filter core (5), characterized by still includes:

the filter cartridge comprises a filter cartridge (1), wherein the top of the filter cartridge (1) is provided with a filter cavity (16) and a first external thread (11), the bottom of the filter cartridge is provided with a water inlet joint (13), the water inlet joint (13) is provided with a water inlet hole (15) and a second external thread, the water inlet hole (15) is communicated with the filter cavity (16), and the filter element (5) is inserted into the filter cavity (16) and is communicated with the water inlet hole (15);

the filter element comprises a connecting seat (3), wherein a connecting column (36) is arranged at the bottom of the connecting seat (3), a connecting groove (35) is formed in the connecting column (36), the connecting column (36) is inserted into the top of the filter cavity (16), a water outlet hole (31) is formed in the top of the connecting seat (3), the water outlet hole (31) is communicated with the connecting groove (35), and a second internal thread is formed in the water outlet hole (31);

the connecting sleeve (2) is provided with a first internal thread (21), the connecting sleeve (2) is inserted into the connecting seat (3) and is connected with the first external thread (11) through the first internal thread (21); and

the support frame comprises a support frame seat (4), wherein a plurality of support rods (42) are arranged at the bottom of the support frame seat (4), the support frame seat (4) is located between the connecting seat (3) and the filter element (5), the support rods (42) are pressed at the bottoms of the connecting grooves (35), the support rods (42) are used for communicating the filter cavity (16) with the water outlet holes (31), and the support frame seat (4) is used for fixing the filter element (5) in the filter cavity (16) and sealing the two ends of the filter element (5).

2. The pre-filter according to claim 1, characterised in that the bottom of the filter chamber (16) is provided with a retaining ring (14), the filter insert (5) being inserted on the retaining ring (14).

3. The prefilter of claim 1 further comprising a seal ring, said connecting post (36) having a seal groove (32) formed therein, said seal ring being mounted in said seal groove (32) for sealing against a filter cavity (16).

4. The prefilter according to claim 1 wherein the top of said holder base (4) is provided with positioning posts (41), and said filter element (5) is inserted on said positioning posts (41).

5. The prefilter of claim 1 wherein said connecting post (36) is provided with a stop collar (38), said stop collar (38) being snapped onto the top of said filter cartridge (1).

6. The prefilter of claim 1 wherein a hexagonal prism (34) is provided on the top of the connecting seat (3), and the water outlet hole (31) is provided on the hexagonal prism (34).

7. The pre-filter according to any of the claims 1 to 6, characterised in that the diameter of the holder base (4) is the same as the diameter of the connecting groove (35), and a communication hole (43) is provided on the holder base (4), and the communication hole (43) is used for communicating the connecting groove (35) with the filter chamber (16).

8. Prefilter according to claim 7, wherein said communication holes (43) are provided in a plurality and are arranged in an annular array.