CN212327614U - Ground heating filter - Google Patents

Abstract

The utility model provides a floor heating filter, it has solved filter core and has dismantled inconvenient scheduling problem, including filter housing, filter element group, water inlet and delivery port, a serial communication port, form former water cavity between the inboard and the filter element group circumference outside of filter housing circumference, filter element group circumference inboard has the water purification chamber, be linked together through the water conservancy diversion structure respectively between water inlet and the former water cavity and between delivery port and the water purification chamber, filter housing fixes a position and sets up in a filter box body that has the cavity, water inlet and delivery port extend to the filter box body outside respectively, filter housing one end has the opening that extends to filter box body tip, the opening part is connected with the end cover through detachable construction, be equipped with end cover filter core linkage structure between end cover and the filter element group. Has the advantages that: the filter can be quickly disassembled and assembled, the cleaning of the filter element is labor-saving, and the filtering effect is convenient to improve; the filter is installed in the box body, and an electromagnetic pollution discharge structure and a temperature pressure gauge are integrated in the box body.

Description

Ground heating filter

Technical Field

The utility model belongs to the technical field of the filter, concretely relates to warm up filter.

Background

For a floor heating system, the water quality flowing through the joint directly influences the fault occurrence frequency of the floor heating system, so that the floor heating system is required to be provided with a floor heating filter at a water inlet pipeline, the floor heating filter is a front filter arranged at the water inlet of a floor heating water separator, the floor heating filter has full-automatic filtering and descaling functions, can easily solve various problems of unheated floor heating, floor heating blockage and the like, can increase the indoor temperature to a normal value, also belongs to the field of floor heating at present, comprehensively solves the problem of floor heating, and can lead a floor heating user to save time, labor, worry and economy and have a high-technology product with high cost performance. The filter has now warms up and has been had a great deal of not enoughly, for example, the filter effect is poor, can accumulate more impurity and cause blocking phenomenon easily on the long-time back filter core that uses, and the filter core dismouting is inconvenient for the washing of filter core is very hard, causes great inconvenience for the use of filter warms up now undoubtedly like this.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses a floor heating water filtering and purifying device [201920924885.2], which comprises a protective shell, a water inlet pipe and a purifying filter element, wherein the bottom of the protective shell is fixedly connected with a connecting base, the bottom of the connecting base is fixedly connected with a sewer pipe, the water inlet pipe is detachably connected with the protective shell, and the inner wall of the water inlet pipe is fixedly connected with a large-hole filter screen.

The poor problem of ground heating filter effect has been solved to a certain extent to above-mentioned scheme, but this scheme still has a great deal of not enough, for example the filter core dismouting is inconvenient, the washing of filter core scheduling problem very hard.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a reasonable in design, filter core easy dismounting's warm up filter.

In order to achieve the above purpose, the utility model adopts the following technical proposal: local warm filter, including the filter housing who has the inner chamber, filter housing in be equipped with the filter element group spare that is the tube-shape, water inlet and delivery port have respectively on filter housing, its characterized in that, just filter housing circumference inboard and filter element group spare circumference outside between form former water cavity, filter element group spare circumference inboard water purification chamber has, just water inlet and former water cavity between and delivery port and water purification chamber between be linked together through the water conservancy diversion structure respectively, filter housing location set up in a filter box body that has the cavity, water inlet and delivery port extend to the filter box body outside respectively, just filter housing one end opening that has the end that extends to filter box body tip, just the opening part be connected with the end cover that exposes in the filter box body outside through detachable construction, just end cover and filter element group spare between be equipped with and can drive filter element group spare when the end cover breaks away from the opening part and take out from opening part and take out Thereby make the filter screen subassembly break away from the end cover filter core linkage structure of filter casing. Through setting up filter housing in a filter box body, play the effect of protection like this, filter housing upper end is through an end cover of quick detach revolution mechanic connection, and filter housing can be taken out along with the end cover together to filter cartridge group spare after the end cover is opened, the dismouting of the filter cartridge group spare of being convenient for, and filter cartridge group spare washs the convenience.

In foretell warm up filter, filter element group spare including be the tube-shape and with the filter core barrel of the coaxial setting of filter housing, filter core barrel on the lower extreme uncovered respectively, just filter core barrel upper end seal through the end cover, the lower extreme seals through blowdown subassembly, filter core barrel week outside side a plurality of through-holes have, just filter core barrel circumference filter screen has, just filter core barrel circumference inboard form above-mentioned water purification chamber. Preferably, the filter screen is arranged at the periphery of the filter element cylinder body at the outer side, and water flow can only pass through the filter screen after the upper end and the lower end of the filter element cylinder body are closed.

In foretell warm up filter, end cover filter core linkage structure include that axial downwardly extending sets up at the end cover lower extreme and be the linkage sealing barrel of tube-shape, filter core barrel upper end and linkage sealing barrel between cup joint each other, just linkage sealing barrel and filter core barrel between be equipped with end cover filter core linkage subassembly.

In foretell warm up filter, end cover filter core linkage subassembly including setting up at the annular groove or the annular bulge in the filter core barrel upper end circumference outside, the sealed barrel circumference inboard of linkage protruding or annular groove have, the filter core barrel insert in the sealed barrel circumference inboard of linkage and filter core barrel upper end uncovered support by in the end cover lower extreme, just annular groove and the protruding mutual joint of annular bulge link to each other. Preferably, the filter element cylinder body upper end circumference outside here is equipped with annular protrusion, then linkage seal cylinder body circumference inboard sets up annular groove, can with end cover and filter element cylinder body axial positioning when annular protrusion and annular groove joint, and filter element cylinder body upper end is uncovered to lean on in the end cover lower extreme, and under annular protrusion and annular groove effect, realizes double seal's effect.

In foretell warm up filter, filter housing one side be equipped with the inlet tube that has the water inlet, the opposite side is equipped with the outlet pipe that has the delivery port, just filter box body both sides the tube hole that supplies inlet tube and outlet pipe to wear out has respectively, just filter housing pass through joint location structure and be located filter box body, just filter box body upper end shell hole corresponding with filter housing upper end has, the lower extreme has the blowdown hole corresponding with blowdown subassembly.

In foretell warm up filter, joint location structure including the last box body and the lower box body of mutual amalgamation formation filtration box body, last box body circumference inboard a plurality of top plates have, arc positioning groove has on the top plate, lower box body week inboard a plurality of bottom plates have, arc positioning groove has down in bottom plate upper end, top plate and bottom plate respectively one-to-one and go up arc positioning groove and arc positioning groove amalgamation each other forms the loop configuration who is arranged in the location in at least one circumference outside in filter housing, inlet tube and outlet pipe down. Preferably, the two ends of the filter cartridge body are respectively provided with an arc-shaped structure, and the filter housing is clamped and positioned after the upper cartridge body and the lower cartridge body are mutually buckled.

In foretell warm up filter, detachable construction including set up in the end cover upper end and be located the rotation knob in the filtration box body outside, just end cover lower extreme circumference outside have downwardly extending and be located the extension barrel in the sealed barrel circumference outside of linkage, the extension barrel peg graft in filter housing upper end uncovered department and both circumference sealed, have a plurality of first slope location sand grips that have first slope spigot surface on filter housing upper end circumference inboard, be equipped with a plurality of second slope location sand grips that have with first slope spigot surface matched with second slope spigot surface in extending the barrel circumference outside, first slope location sand grip and the mutual joint of second slope location sand grip and second slope location sand grip one end have spacing portion. Obviously, when the rotation knob is rotated circumferentially, the first inclined positioning convex strips and the second inclined positioning convex strips rotate circumferentially relatively, and the end cover is gradually separated from the filter shell under the action of the first inclined guide surfaces and the second inclined guide surfaces, so that the quick-release function is realized.

In the floor heating filter, the flow guide structure comprises a flow guide outer cylinder body and a flow guide inner cylinder body which are coaxially arranged, the flow guide outer cylinder body is positioned at the circumferential outer side of the flow guide inner cylinder body, an annular gap is formed between the flow guide outer cylinder body and the flow guide inner cylinder body, the upper end of the flow guide outer cylinder body and the upper end of the flow guide inner cylinder body are connected to form an annular step, the lower end of the extension cylinder body is abutted against the annular step, the flow guide inner cylinder body is sleeved on the outer side of the periphery of the filter element cylinder body, the outer circumferential side of the flow guide outer cylinder body is provided with a water inlet flow guide hole which is communicated with the annular gap and corresponds to the water inlet, the circumferential direction of the water inlet diversion hole is provided with a buckling part which is clamped with the inner end of the water inlet pipe, the circumferential direction outer side of the diversion inner cylinder body is provided with a water outlet diversion hole, the inner side of the water outlet diversion hole extends to the circumferential outer side of the filter element cylinder, and the outer side of the water outlet diversion hole penetrates through the circumferential outer side of the diversion outer cylinder and is in butt joint with the inner end of the water outlet pipe. Obviously, the structure can ensure that the water flow of the water inlet enters the water purification cavity from the raw water cavity through the filter screen, and then the water flow of the water purification cavity flows into the water outlet completely.

In foretell warm up filter, the blowdown subassembly including setting up the blow off pipe at filter housing lower extreme, just the blow off pipe on be equipped with solenoid valve body, just lower box week inboard be equipped with the battery case of installing the power module that links to each other with solenoid valve body, just the battery case outside battery case lid has, and the box lower extreme outside has the depressed groove down, just the depressed groove in be equipped with the circuit board that links to each other and have control circuit with solenoid valve body, just the depressed groove in be equipped with and be used for covering the circuit board and be the enclosing cover body of split type structure. Namely the electromagnetic valve realizes the sewage discharge function.

In foretell warm up filter, the filter housing outside have the connecting pipe that is linked together with former water cavity, just the connecting pipe be connected with pressure/thermometer, just pressure/thermometer the inner extend to the small opening department that sets up in the outer barrel circumference outside of water conservancy diversion, just the gauge outfit of pressure/thermometer pass down the box body and set up in the mounting hole of outer lid.

Compared with the prior art, the utility model has the advantages of:

1. the quick disassembling of the end cover and the mutual matching of the end cover and the filter element linkage structure can realize the quick disassembling and assembling of the end cover and the filter element together, the cleaning of the filter element is labor-saving, and the filtering effect is convenient to improve;

2. the filter is installed in the box body, plays the effect to the filter protection, and integrated electromagnetism blowdown structure and temperature manometer have improved the filter intellectuality in the box body.

Drawings

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

FIG. 2 is a structural sectional view of the present invention;

FIG. 3 is an exploded view of the structure of the present invention;

fig. 4 is an exploded view of another perspective of the present invention;

fig. 5 is an exploded view of a partial structure of the present invention;

fig. 6 is an exploded view of another perspective of the present invention;

fig. 7 is a schematic structural view of the flow guide structure of the present invention;

in the figure, the filter housing 1, the inner cavity 11, the water inlet 12, the water inlet pipe 121, the water outlet 13, the water outlet pipe 131, the raw water cavity 14, the purified water cavity 15, the opening 16, the filter element assembly 2, the filter element cylinder 21, the through hole 211, the flow guide structure 3, the flow guide outer cylinder 31, the flow guide inner cylinder 32, the annular gap 33, the annular step 34, the water inlet flow guide hole 35, the fastening part 351, the water outlet flow guide hole 36, the filter cartridge body 4, the pipe hole 41, the housing hole 42, the sewage discharge hole 43, the upper cartridge body 44, the upper positioning plate 441, the upper arc-shaped positioning groove 442, the lower cartridge body 45, the lower positioning plate 451, the lower arc-shaped positioning groove 452, the detachable structure 5, the rotating knob 51, the extending cylinder 52, the first inclined positioning convex strip 53, the first inclined guiding surface 531, the second inclined positioning convex strip 54, the second inclined guiding surface 541, the limiting part 55, the, The device comprises an annular groove 72, an annular protrusion 73, a sewage discharge assembly 8, a sewage discharge pipe 81, an electromagnetic valve body 82, a battery box 83, a battery chamber cover 84, a concave groove 85, a circuit board 86, an outer cover body 87, a connecting pipe 9, a pressure/temperature meter 91, a leak hole 92 and a mounting hole 93.

Detailed Description

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

As shown in fig. 1-7, the local heating filter comprises a filter housing 1 having an inner cavity 11, a cylindrical filter element assembly 2 is arranged in the filter housing 1, a water inlet 12 and a water outlet 13 are respectively arranged on the filter housing 1, a raw water cavity 14 is formed between the circumferential inner side of the filter housing 1 and the circumferential outer side of the filter element assembly 2, a purified water cavity 15 is arranged on the circumferential inner side of the filter element assembly 2, the water inlet 12 and the raw water cavity 14 and the water outlet 13 and the purified water cavity 15 are respectively communicated through a flow guide structure 3, the filter housing 1 is positioned in a filter cartridge 4 having a cavity, the water inlet 12 and the water outlet 13 respectively extend to the outer side of the filter cartridge 4, an opening 16 extending to the end of the filter cartridge 4 is arranged at one end of the filter housing 1, and the opening 16 is connected with an end cap 6 exposed out of the filter, and an end cover filter element linkage structure 7 which can drive the filter element assembly 2 to be drawn out from the opening 16 when the end cover 6 is separated from the opening 16 so as to separate the filter screen assembly from the filter shell 1 is arranged between the end cover 6 and the filter element assembly 2. Through setting up filter housing 1 in a filter box body 4, play the effect of protection like this, filter housing 1 upper end is through end cover 6 of quick detach revolution mechanic connection, and filter housing 1 can be taken out along with end cover 6 together to filter cartridge group spare 2 after end cover 6 is opened, the dismouting of filter cartridge group spare 2 of being convenient for, and filter cartridge group spare 2 washs conveniently.

Specifically, the filter element assembly 2 includes a filter element cylinder 21 which is cylindrical and is coaxially disposed with the filter housing 1, the upper and lower ends of the filter element cylinder 21 are respectively opened, the upper end of the filter element cylinder 21 is closed by an end cover 6, the lower end is closed by a sewage discharging assembly 8, a plurality of through holes 211 are formed on the circumferential outer side of the filter element cylinder 21, a filter screen is formed on the circumferential outer side of the filter element cylinder 21, and the filter element cylinder 21 forms the clean water chamber 15 on the circumferential inner side. Preferably, the filter screen is disposed at the circumferential outer side of the filter cartridge body 21, and the water flow can only enter and exit through the filter screen after the upper and lower ends of the filter cartridge body 21 are closed.

In order to realize linkage of the end cover 6 and the filter element cylinder 21, the end cover and filter element linkage structure 7 comprises a cylindrical linkage sealing cylinder 71 which is axially and downwardly extended and arranged at the lower end of the end cover 6, the upper end of the filter element cylinder 21 and the linkage sealing cylinder 71 are mutually sleeved, and an end cover and filter element linkage assembly is arranged between the linkage sealing cylinder 71 and the filter element cylinder 21.

Preferably, the end cover and filter element linkage assembly comprises an annular groove 72 or an annular protrusion 73 arranged on the circumferential outer side of the upper end of the filter element cylinder body 21, the circumferential inner side of the linkage sealing cylinder body 71 is provided with the annular protrusion 73 or the annular groove 72, the filter element cylinder body 21 is inserted on the circumferential inner side of the linkage sealing cylinder body 71, the upper end of the filter element cylinder body 21 is open and abutted against the lower end of the end cover 6, and the annular groove 72 and the annular protrusion 73 are mutually connected in a clamping manner. Preferably, the circumferential outer side of the upper end of the filter element cylinder 21 is provided with an annular protrusion 73, then the circumferential inner side of the linkage sealing cylinder 71 is provided with an annular groove 72, when the annular protrusion 73 and the annular groove 72 are clamped, the end cover 6 and the filter element cylinder 21 can be axially positioned, the upper end of the filter element cylinder 21 is open and abutted against the lower end of the end cover 6, and under the action of the annular protrusion 73 and the annular groove 72, the double sealing effect is realized.

Furthermore, one side of the filter housing 1 is provided with a water inlet pipe 121 having a water inlet 12, the other side is provided with a water outlet pipe 131 having a water outlet 13, two sides of the filter cartridge 4 are respectively provided with a pipe hole 41 for the water inlet pipe 121 and the water outlet pipe 131 to pass through, the filter housing 1 is positioned in the filter cartridge 4 through a clamping positioning structure, the upper end of the filter cartridge 4 is provided with a housing hole 42 corresponding to the upper end of the filter housing 1, and the lower end is provided with a sewage discharge hole 43 corresponding to the sewage discharge assembly 8.

The clamping positioning structure comprises an upper box body 44 and a lower box body 45 which are mutually spliced to form a filtering box body 4, a plurality of upper positioning plates 441 are arranged on the inner side of the circumferential direction of the upper box body 44, an upper arc-shaped positioning groove 442 is formed in the upper end of the upper positioning plates 441, a plurality of lower positioning plates 451 are arranged on the inner side of the circumferential direction of the lower box body 45, a lower arc-shaped positioning groove 452 is formed in the upper end of the lower positioning plates 451, the upper positioning plates 441 and the lower positioning plates 451 are respectively in one-to-one correspondence, and the upper arc-shaped positioning grooves 442 and the lower arc-shaped positioning grooves 452 are mutually spliced to form an annular structure which is used. Preferably, the two ends of the filter cartridge 4 are respectively provided with an arc-shaped structure, so that the filter housing 1 can be clamped and positioned after the upper cartridge 44 and the lower cartridge 45 are buckled with each other.

Preferably, in order to realize the quick release of the end cap, the detachable structure 5 herein adopts a rotary quick release structure, which includes a rotary knob 51 disposed at the upper end of the end cap 6 and located outside the filtering case 4, and the circumferential outside of the lower end of the end cap 6 has an extension cylinder 52 extending downward and located outside the circumferential outside of a linkage sealing cylinder 71, the extension cylinder 52 is inserted into the upper opening of the filter housing 1 and sealed circumferentially, the circumferential inside of the upper opening of the filter housing 1 has a plurality of first inclined positioning ribs 53 having first inclined guide surfaces 531, the circumferential outside of the extension cylinder 52 has a plurality of second inclined positioning ribs 54 having second inclined guide surfaces 541 cooperating with the first inclined guide surfaces 531, the first inclined positioning ribs 53 and the second inclined positioning ribs 54 are engaged with each other, and one end of the second inclined positioning ribs 54 has a limiting portion 55. Obviously, when the rotation knob 51 is rotated circumferentially, the first inclined positioning rib 53 and the second inclined positioning rib 54 rotate relatively circumferentially, and the end cap 6 is gradually separated from the filter housing 1 by the first inclined guide surface 531 and the second inclined guide surface 541, so as to realize the quick-release function.

Furthermore, the flow guiding structure 3 comprises a flow guiding outer cylinder 31 and a flow guiding inner cylinder 32 which are coaxially arranged, the flow guiding outer cylinder 31 is positioned at the circumferential outer side of the flow guiding inner cylinder 32, an annular gap 33 is formed between the flow guiding outer cylinder 31 and the flow guiding inner cylinder 32, and the upper end of the flow guide outer cylinder 31 is connected with the upper end of the flow guide inner cylinder 32 to form an annular step 34, the lower end of the extending cylinder 52 is abutted against the annular step 34, the flow guide inner cylinder 32 is sleeved on the circumferential outer side of the filter element cylinder 21, the circumferential outer side of the flow guide outer cylinder 31 is provided with a water inlet flow guide hole 35 which is communicated with the annular gap 33 and corresponds to the water inlet 12, the circumferential outer side of the water inlet flow guide hole 35 is provided with a clamping part 351 clamped with the inner end of the water inlet pipe 121, the circumferential outer side of the flow guide inner cylinder 32 is provided with a water outlet flow guide hole 36, the inner side of the water outlet flow guide hole 36 extends to the circumferential outer side of the filter element cylinder 21, and the outer side of the water outlet diversion hole 36 penetrates through the circumferential outer side of the diversion outer cylinder 31 and is butted with the inner end of the water outlet pipe 131. Obviously, the above structure can ensure that the water flow of the water inlet 12 enters the water purifying cavity 15 from the raw water cavity 14 through the filter screen, and then the water flow of the water purifying cavity 15 flows into the water outlet 13 completely.

In order to facilitate sewage discharge, the sewage discharge assembly 8 comprises a sewage discharge pipe 81 arranged at the lower end of the filter shell 1, an electromagnetic valve body 82 is arranged on the sewage discharge pipe 81, a battery box 83 provided with a power supply module connected with the electromagnetic valve body 82 is arranged on the circumferential inner side of the lower box body 45, a battery box cover 84 is arranged on the outer side of the battery box 83, a concave groove 85 is arranged on the outer side of the lower end of the lower box body 45, a circuit board 86 which is connected with the electromagnetic valve body 82 and is provided with a control circuit is arranged in the concave groove 85, an outer cover 87 which is used for covering the circuit board 86 and is of a split type structure is arranged in the concave groove 85, wherein the upper box body 44 and the lower box body 45 can be connected through bolts, a decorative ring for shielding the bolts is arranged on.

In order to improve the intelligent degree of the filter and monitor the temperature and pressure inside the filter in real time, the outside of the filter housing 1 is provided with a connecting pipe 9 communicated with the raw water cavity 14, the connecting pipe 9 is connected with a pressure/temperature meter 91, the inner end of the pressure/temperature meter 91 extends to a leakage hole 92 arranged on the circumferential outside of the diversion outer cylinder 31, and the gauge head of the pressure/temperature meter 91 penetrates through the lower box body 45 and is arranged in a mounting hole 93 of the outer cover body 87.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the filter housing 1, the inner cavity 11, the water inlet 12, the water inlet pipe 121, the water outlet 13, the water outlet pipe 131, the raw water cavity 14, the purified water cavity 15, the opening 16, the filter element assembly 2, the filter element cylinder 21, the through hole 211, the flow guide structure 3, the flow guide outer cylinder 31, the flow guide inner cylinder 32, the annular gap 33, the annular step 34, the water inlet flow guide hole 35, the fastening part 351, the water outlet flow guide hole 36, the filter cartridge 4, the pipe hole 41, the housing hole 42, the sewage discharge hole 43, the upper cartridge 44, the upper positioning plate 441, the upper arc-shaped positioning groove 442, the lower cartridge 45, the lower 451 positioning plate, the lower arc-shaped positioning groove 452, the detachable structure 5, the rotating knob 51, the extending cylinder 52, the first inclined positioning convex strip 53, the first inclined guiding surface 531, the second inclined positioning convex strip 54, the second inclined guiding surface 541, the limiting part 55, the end cap 6, the terms of the interlocking seal cylinder 71, the annular groove 72, the annular protrusion 73, the sewage assembly 8, the sewage pipe 81, the solenoid valve body 82, the battery box 83, the battery compartment cover 84, the recess groove 85, the circuit board 86, the outer cover body 87, the connecting pipe 9, the pressure/temperature gauge 91, the leak hole 92, the mounting hole 93, etc., do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides a floor heating filter, is including filter housing (1) that has inner chamber (11), filter housing (1) in be equipped with filter element group (2) that are the tube-shape, have water inlet (12) and delivery port (13) respectively on filter housing (1), its characterized in that, just filter housing (1) circumference inboard and filter element group (2) circumference outside between form former water cavity (14), filter element group (2) circumference inboard water purification chamber (15) have, just water inlet (12) and former water cavity (14) between and delivery port (13) and water purification chamber (15) between be linked together through water conservancy diversion structure (3) respectively, filter housing (1) location set up in a filtration box body (4) that has the cavity, water inlet (12) and delivery port (13) extend to the filtration box body (4) outside respectively, just filter casing (1) one end opening (16) that extend to filter box body (4) tip have, just opening (16) locate to be connected with through detachable construction (5) and expose in end cover (6) that filter box body (4) outside, just end cover (6) and filter element group spare (2) between be equipped with and can drive filter element group spare (2) and take out from opening (16) when end cover (6) break away from opening (16) and take out thereby make filter element group spare break away from end cover filter element linkage structure (7) of filter casing (1).

2. The floor heating filter of claim 1, characterized in that, the filter element group spare (2) including be the tube-shape and with filter housing (1) coaxial setting's filter core barrel (21), filter core barrel (21) about the end respectively uncovered, just filter core barrel (21) upper end seal through end cover (6), the lower extreme seals through blowdown subassembly (8), filter core barrel (21) circumference outside a plurality of through-holes (211) have, just filter core barrel (21) circumference filter screen has, just filter core barrel (21) circumference inboard form above-mentioned water purification chamber (15).

3. The floor heating filter of claim 2, wherein the end cover filter element linkage structure (7) comprises a linkage sealing cylinder body (71) which axially extends downwards, is arranged at the lower end of the end cover (6) and is in a cylindrical shape, the upper end of the filter element cylinder body (21) and the linkage sealing cylinder body (71) are mutually sleeved, and an end cover filter element linkage assembly is arranged between the linkage sealing cylinder body (71) and the filter element cylinder body (21).

4. The floor heating filter of claim 3, wherein the end cover filter element linkage assembly comprises an annular groove (72) or an annular protrusion (73) which is arranged on the outer side of the circumferential direction of the upper end of the filter element cylinder body (21), the inner side of the circumferential direction of the linkage sealing cylinder body (71) is provided with the annular protrusion (73) or the annular groove (72), the filter element cylinder body (21) is inserted into the inner side of the circumferential direction of the linkage sealing cylinder body (71) and the upper end of the filter element cylinder body (21) is opened to abut against the lower end of the end cover (6), and the annular groove (72) and the annular protrusion (73) are connected in a clamped mode.

5. The floor heating filter according to claim 3 or 4, characterized in that one side of the filter housing (1) is provided with a water inlet pipe (121) with a water inlet (12), the other side is provided with a water outlet pipe (131) with a water outlet (13), pipe holes (41) for the water inlet pipe (121) and the water outlet pipe (131) to penetrate out are respectively arranged on two sides of the filter housing (4), the filter housing (1) is positioned in the filter housing (4) through a clamping positioning structure, the upper end of the filter housing (4) is provided with a housing hole (42) corresponding to the upper end of the filter housing (1), and the lower end of the filter housing (4) is provided with a sewage discharge hole (43) corresponding to the sewage discharge assembly (8).

6. The floor heating filter of claim 5, wherein the clamping and positioning structure comprises an upper box body (44) and a lower box body (45) which are mutually spliced to form a filtering box body (4), the circumferential inner side of the upper box body (44) is provided with a plurality of upper positioning plates (441), the upper end of each upper positioning plate (441) is provided with an upper arc-shaped positioning groove (442), the circumferential inner side of each lower box body (45) is provided with a plurality of lower positioning plates (451), the upper end of each lower positioning plate (451) is provided with a lower arc-shaped positioning groove (452), the upper positioning plates (441) and the lower positioning plates (451) are respectively in one-to-one correspondence, and the upper arc-shaped positioning grooves (442) and the lower arc-shaped positioning grooves (452) are mutually spliced to form an annular structure which is used for being positioned at least one circumferential outer side of the filter housing (1), the water inlet.

7. The floor heating filter according to claim 6, wherein the detachable structure (5) comprises a rotating knob (51) arranged at the upper end of the end cover (6) and positioned outside the filtering box body (4), an extending cylinder (52) extending downwards and positioned outside the circumferential direction of the lower end of the end cover (6) is arranged at the circumferential outside of the lower end of the end cover (6), the extending cylinder (52) is inserted into an upper end opening of the filter shell (1) and sealed at the circumferential direction of the upper end opening of the filter shell (1), a plurality of first inclined positioning convex strips (53) with first inclined guide surfaces (531) are arranged at the circumferential inside of the upper end opening of the filter shell (1), a plurality of second inclined positioning convex strips (54) with second inclined guide surfaces (541) matched with the first inclined guide surfaces (531) are arranged at the circumferential outside of the extending cylinder (52), the first inclined positioning convex strips (53) and the second inclined positioning convex strips (54) are mutually clamped and the second inclined positioning convex strips are mutually clamped One end of the bar (54) is provided with a limiting part (55).

8. The floor heating filter according to claim 7, wherein the flow guide structure (3) comprises a flow guide outer cylinder (31) and a flow guide inner cylinder (32) which are coaxially arranged, the flow guide outer cylinder (31) is located on the circumferential outer side of the flow guide inner cylinder (32) and forms an annular gap (33) therebetween, the upper end of the flow guide outer cylinder (31) is connected with the upper end of the flow guide inner cylinder (32) to form an annular step (34), the lower end of the extension cylinder (52) abuts against the annular step (34), the flow guide inner cylinder (32) is sleeved on the circumferential outer side of the filter element cylinder (21), a water inlet flow guide hole (35) communicated with the annular gap (33) and corresponding to the water inlet (12) is formed in the circumferential outer side of the flow guide outer cylinder (31), and a clamping part (351) clamped with the inner end of the water inlet pipe (121) is circumferentially arranged in the water inlet flow guide hole (35), the circumference outside of the flow guide inner cylinder body (32) is provided with a water outlet flow guide hole (36), the inner side of the water outlet flow guide hole (36) extends to the circumference outside of the filter element cylinder body (21), and the outer side of the water outlet flow guide hole (36) penetrates through the circumference outside of the flow guide outer cylinder body (31) and is butted with the inner end of the water outlet pipe (131).

9. The floor heating filter according to claim 8, characterized in that the sewage discharging assembly (8) comprises a sewage discharging pipe (81) arranged at the lower end of the filter shell (1), an electromagnetic valve body (82) is arranged on the sewage discharging pipe (81), a battery box (83) provided with a power supply module connected with the electromagnetic valve body (82) is arranged on the circumferential inner side of the lower box body (45), a battery box cover (84) is arranged on the outer side of the battery box (83), a concave groove (85) is arranged on the outer side of the lower end of the lower box body (45), a circuit board (86) connected with the electromagnetic valve body (82) and provided with a control circuit is arranged in the concave groove (85), and an outer cover body (87) used for covering the circuit board (86) and having a split type structure is arranged in the concave groove (85).

10. The floor heating filter of claim 9, wherein a connecting pipe (9) communicated with the raw water cavity (14) is arranged on the outer side of the filter shell (1), the connecting pipe (9) is connected with a pressure/temperature meter (91), the inner end of the pressure/temperature meter (91) extends to a leakage hole (92) formed in the circumferential outer side of the flow guide outer cylinder (31), and a gauge head of the pressure/temperature meter (91) penetrates through the lower box body (45) and is arranged in a mounting hole (93) of the outer cover body (87).

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