CN213231739U

CN213231739U - Domestic sewage purification treatment device

Info

Publication number: CN213231739U
Application number: CN202021476576.2U
Authority: CN
Inventors: 董学桂
Original assignee: Hangzhou Tongying Environmental Protection Technology Co ltd
Current assignee: Hangzhou Tongying Environmental Protection Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-05-18
Anticipated expiration: 2030-07-23

Abstract

The utility model provides a domestic sewage purification treatment device belongs to domestic sewage purification technical field. The domestic sewage purification treatment device comprises a shell component and a filtering component. When first filtration piece and the second filtration piece of needs change or clearance, rotate compression screw, through the screw thread transmission principle, compression screw withdraws from the shape of falling L fixed plate gradually, the condition that compression screw compresses tightly the apron is relieved, take out the apron from side, and then the extractable filter, the filter is cleared up or is changed the back, insert the filter draw-in groove again, then insert the apron, the compression screw screws of screwing, utilize compression screw to compress tightly the apron, outside the shell alright demolish and change or clearance filter, need not the interior sewage of earlier evacuation shell when demolising, demolish and change or clearance process are simple, and then the filter screen of the effectual current domestic sewage's of improvement purification unit's pretreatment equipment's of purification unit filter screen dismantlement's problem of being not convenient for.

Description

Domestic sewage purification treatment device

Technical Field

The utility model relates to a domestic sewage purifies the field, particularly, relates to a domestic sewage purification unit.

Background

Domestic sewage's purification unit is the essential equipment of environment-friendly society, needs carry out the preliminary treatment to sewage among the domestic sewage purification process, gets rid of the great pollutant of granule of sewage and goes the stink etc. in the sewage, and the preliminary treatment equipment among the domestic sewage purification treatment system can realize this function, and at present, the filter screen of preliminary treatment equipment sets up inside the casing, the dismantlement of the filter screen of being not convenient for.

SUMMERY OF THE UTILITY MODEL

In order to make up for above not enough, the utility model provides a domestic sewage purification treatment device aims at improving the problem that current domestic sewage's purification treatment device's preprocessing equipment's filter screen is not convenient for dismantle.

The utility model discloses a realize like this:

a domestic sewage purification treatment device comprises a shell component and a filtering component.

The shell assembly comprises a shell, a water inlet funnel piece, a water outlet pipe, a first clamping groove plate and a second clamping groove plate, the water inlet funnel piece is fixedly communicated with the upper side of the outer wall of one end of the shell, the water outlet pipe is fixedly communicated with the lower side of the outer wall of the end part of the other end of the shell, the first clamping groove plate is positioned inside the shell and close to one end of the water inlet funnel piece, the second clamping groove plate is positioned inside the shell and close to one end of the water outlet pipe, the first clamping groove plate and the second clamping groove plate respectively comprise a U-shaped plate body and clamping grooves formed inside the U-shaped plate body, the inner wall of the U-shaped plate body is in an inverted trapezoid shape, the U-shaped plate body is fixedly connected with the inner wall of the shell, the U-shaped plate body and the outer wall of the shell are aligned, the filtering assembly comprises a first filtering piece and a second filtering piece, the first filtering piece and the second filtering piece are respectively arranged inside the, the first filter piece and the second filter piece respectively comprise a filter plate, a sealing ring, a pressing cover, an inverted L-shaped fixing plate and a pressing screw rod, the filter plate is designed into an inverted trapezoid and is matched with the clamping groove in the U-shaped plate body, the filter plate is inserted into the clamping groove, the sealing ring is fixedly connected to the periphery of the filter plate and is pressed against the clamping groove, the sealing ring extends out of the shell, the pressing cover comprises a cover plate and a sealing plate, the sealing plate is fixedly connected with the cover plate, the sealing plate can press the upper end of the sealing ring and the upper end of the U-shaped plate body, one end of the inverted L-shaped fixing plate is respectively and uniformly arranged at two sides of the cover plate, one end of the inverted L-shaped fixing plate is fixedly connected to the shell, the compression screw threads penetrate through the inverted L-shaped fixing plate, and the compression screws are respectively compressed on the cover plate.

The utility model discloses an in one embodiment, the fixed intercommunication of shell bottom has two to let out dirty pipe, one let out dirty pipe and be located intake funnel spare with between the first draw-in groove board, another let out dirty pipe and be located first draw-in groove board with between the second draw-in groove board, two let out dirty pipe tip fixedly connected with gate valve.

In an embodiment of the present invention, the bottom end of the housing is fixedly connected with a universal wheel.

In an embodiment of the present invention, a first handle is fixedly connected to an upper side of the outer wall of the end portion of the housing.

The utility model discloses an in one embodiment, the funnel spare of intaking includes intake funnel, backup pad and filter cartridge, the even fixed connection of backup pad in intake funnel inner wall, the filter cartridge inserts in the intake funnel, the backup pad can be supported the filter cartridge.

The utility model discloses an in an embodiment, the filter cartridge includes box body, wire net, clamp plate fixed connection in box body bottom is peripheral, the clamp plate can with the wire net compress tightly in the box body bottom.

In an embodiment of the present invention, the outer wall of the upper end of the box body is fixedly connected with a baffle.

In an embodiment of the present invention, a second handle is fixedly connected to one side of the cover plate.

In an embodiment of the present invention, the compression screw includes a rod body and a rotating plate rotatably connected to one end of the rod body.

In an embodiment of the present invention, the filter plate includes a connection ring and a filter screen, the connection ring is set to two, two the mutual fixed connection of connection ring, two the connection ring compress tightly in the periphery of the two sides of the filter screen, the filter screen of the first filter piece is set to a stainless steel filter screen, the filter screen of the second filter piece is set to an activated carbon filter screen.

The utility model has the advantages that: the utility model discloses a domestic sewage purification unit who obtains of last design, when first filter piece and the second filter piece of needs change or clearance, rotate compression screw, through the screw thread transmission principle, compression screw withdraws from the shape fixed plate of falling L gradually, remove the condition that compression screw compresses tightly the apron, take the apron out from side, and then can extract the filter, the filter clears up or changes the back, insert the filter draw-in groove again, insert the apron then, screw compression screw, utilize compression screw to compress tightly the apron, outside alright demolish and change or clearance filter at the shell, need not the sewage in the first evacuation shell when demolising, it is simple to demolish change or clearance process, and then the effectual problem of dismantling not convenient to the filter screen of the pretreatment device's of the purification unit of domestic sewage that improves now.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a domestic sewage purification treatment apparatus according to an embodiment of the present invention;

FIG. 2 provides a schematic structural view of a housing assembly for an embodiment of the present invention;

fig. 3 is a schematic structural view of a first slot plate and a second slot plate according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a water inlet funnel according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a filter cassette according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a filter assembly according to an embodiment of the present invention;

fig. 7 is an enlarged schematic structural diagram of a point a in fig. 6 according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a pressing cover according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a pressing screw rod provided in an embodiment of the present invention;

fig. 10 is an enlarged schematic structural diagram of a point B in fig. 6 according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a second viewing angle of the domestic sewage purification treatment apparatus according to the embodiment of the present invention.

In the figure: 100-a housing assembly; 110-a housing; 120-a water inlet funnel piece; 121-a water inlet funnel; 122-a support plate; 123-a filter cartridge; 1231-cassette; 1232-wire mesh; 1233-pressboard; 1234-baffle plate; 130-a water outlet pipe; 140-a first card slot plate; 141-U-shaped plate body; 142-a card slot; 150-a second card slot plate; 160-sewage draining pipe; 170-universal wheels; 180-a first handle; 200-a filter assembly; 210-a first filter element; 211-a filter plate; 2111-connecting ring; 2112-strainer; 212-sealing ring; 213-a compression cap; 2131-cover plate; 2132-sealing plate; 2133-a second handle; 214-an inverted L-shaped fixation plate; 215-a compression screw; 2151-rod body; 2152-rotating plate; 220-second filter element.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a domestic sewage purification apparatus, which includes a housing assembly 100 and a filtering assembly 200, wherein the housing assembly 100 is used for supporting the filtering assembly 200, and the filtering assembly 200 is used for filtering domestic sewage.

Referring to fig. 2, the housing assembly 100 includes a housing 110, a water inlet funnel member 120, a water outlet pipe 130, a first slot plate 140 and a second slot plate 150, the water inlet funnel member 120 is fixedly connected to the upper side of the outer wall of one end of the housing 110, wherein the water inlet funnel member 120 is fixedly connected to the housing 110 by welding, the water outlet pipe 130 is fixedly connected to the lower side of the outer wall of the other end of the housing 110, in this embodiment, the water outlet pipe 130 is fixedly connected to the housing 110, the first slot plate 140 is located at one end of the housing 110 close to the water inlet funnel member 120, the second slot plate 150 is located at one end of the housing 110 close to the water outlet pipe 130, the bottom end of the housing 110 is fixedly connected to two dirt discharge pipes 160, it should be noted that the dirt discharge pipes 160 are fixedly connected to the housing 110 by welding, one dirt discharge pipe 160 is located between the water inlet funnel member 120 and the first slot plate 140, the other dirt discharge pipe 160 is located between the first slot plate 140 and, two let out dirty pipe 160 tip fixedly connected with gate valve, the gate valve passes through flange fixed connection in letting out dirty pipe 160 for close and let out dirty pipe 160, can discharge the debris that deposit in the shell 110 through letting out dirty pipe 160, shell 110 bottom fixed connection has universal wheel 170, wherein, universal wheel 170 passes through bolt fixed connection in shell 110, the tip outer wall upside fixedly connected with first handle 180 of shell 110 one end, first handle 180 passes through welding fixed connection in shell 110, promote shell 110 through first handle 180, be convenient for remove shell 110 through universal wheel 170.

Referring to fig. 3, each of the first slot plate 140 and the second slot plate 150 includes a U-shaped plate 141 and a slot 142 formed inside the U-shaped plate 141, an inner wall of the U-shaped plate 141 is inverted trapezoid, and the U-shaped plate 141 is fixedly connected to an inner wall of the housing 110.

Referring to fig. 4, the inlet funnel member 120 includes an inlet funnel 121, a support plate 122 and a filter box 123, the support plate 122 is uniformly and fixedly connected to the inner wall of the inlet funnel 121, when the inlet funnel member is specifically disposed, the support plate 122 is fixedly connected to the inner wall of the inlet funnel 121 by welding, the filter box 123 is inserted into the inlet funnel 121, and the support plate 122 can support the filter box 123.

Referring to fig. 5, the filter box 123 includes a box body 1231, a steel wire mesh 1232, a pressing plate 1233, the pressing plate 1233 is fixedly connected to the bottom periphery of the box body 1231, wherein the pressing plate 1233 is fixedly connected to the bottom periphery of the box body 1231 through screws, the pressing plate 1233 can press the steel wire mesh 1232 to the bottom of the box body 1231, after the pressing plate 1233 is removed, the steel wire mesh 1232 can be replaced, a baffle 1234 is fixedly connected to the outer wall of the upper periphery of the box body 1231, the baffle 1234 and the box body 1231 are of an integrated structure, when the box body 1231 falls down due to damage of the supporting plate 122, the upper end of the water inlet funnel 121 can be blocked by the baffle 1234, the situation that the box body 1231 falls into the inside of the housing 110 is reduced, sewage enters the housing 110 from the inside of the box body 1231, the steel wire mesh 1232 can block large pollutants in the sewage, and when.

Referring to fig. 6 and 7, the filter assembly 200 includes a first filter element 210 and a second filter element 220, the first filter element 210 and the second filter element 220 are respectively disposed in the first slot plate 140 and the second slot plate 150, the first filter element 210 and the second filter element 220 each include a filter plate 211, a seal ring 212, a pressing cover 213, an inverted L-shaped fixing plate 214 and a pressing screw 215, the filter plate 211 is configured to be fitted into the slot 142 inside the inverted trapezoidal and U-shaped plate 141, so that the periphery of the filter plate 211 is pressed against the slot 142, thereby reducing leakage of sewage and improving purification efficiency, the filter plate 211 is inserted into the slot 142, the seal ring 212 is fixedly connected to the periphery of the filter plate 211, the seal ring 212 is adhered to the periphery of the filter plate 211 by glue, the seal ring 212 is adhered to the slot 142 by press, thereby reducing leakage and improving purification efficiency, and.

Referring to fig. 8, the pressing cap 213 includes a cover plate 2131 and a sealing plate 2132, the sealing plate 2132 is fixedly connected to the cover plate 2131, it should be noted that, the sealing plate 2132 is fixedly connected to the cover plate 2131 by gluing, the sealing plate 2132 can press the upper end of the sealing ring 212 and the upper end of the U-shaped plate 141, the gap between the upper ends of the first filtering piece 210 and the second filtering piece 220 and the outer shell 110 is fixed and sealed by the sealing plate 2132, the leakage of sewage is reduced, the purification efficiency is improved, one end of the inverted L-shaped fixing plate 214 is respectively and evenly arranged at the two sides of the cover plate 2131, one end of the inverted L-shaped fixing plate 214 is fixedly connected with the outer shell 110, when in specific arrangement, the inverted L-shaped fixing plate 214 is fixedly connected to the housing 110 by welding, the compression screw 215 penetrates through the inverted L-shaped fixing plate 214 in a threaded manner, the compression screw 215 is respectively compressed onto the cover plate 2131, one side of the cover plate 2131 is fixedly connected with a second handle 2133, and the second handle 2133 is fixedly connected to the cover plate 2131 by welding.

Referring to fig. 9, the pressing screw 215 includes a rod 2151 and a rotating plate 2152 rotatably connected to one end of the rod 2151, the rotating plate 2152 is rotatably connected to the rod 2151 via a pin, when the first filter 210 and the second filter 220 need to be replaced or cleaned, the rotating plate 2152 drives the rotating rod 2151, the rod 2151 gradually withdraws from the inverted L-shaped fixing plate 214 by using the screw driving principle, the situation that the rod 2151 is pressed against the cover 2131 is eliminated, the cover 2131 is drawn out from the side by using the second handle 2133, the filter 211 can be drawn out, after the filter 211 is cleaned or replaced, the filter 211 is inserted into the slot 142 again, the cover 2131 is inserted, the rod 2151 is screwed, the rod 2151 is pressed against the cover 2131, the filter 211 can be removed or cleaned outside the housing 110, the sewage in the housing 110 does not need to be emptied first during removal, the replacement or cleaning process is simple, and then the problem that the filter screen of the pretreatment equipment of the existing domestic sewage purification treatment device is inconvenient to disassemble is effectively improved.

Referring to fig. 10, the filter plate 211 includes two coupling rings 2111 and a filter screen 2112, the two coupling rings 2111 are fixedly coupled to each other, the two coupling rings 2111 are compressed to the peripheries of both sides of the filter screen 2112, the filter screen 2112 of the first filter member 210 is configured as a stainless steel filter screen, and the filter screen 2112 of the second filter member 220 is configured as an activated carbon filter screen.

Please refer to fig. 11, during the use, sewage is by in box body 1231 inside entering shell 110, and the sewage that gets into in the shell 110 passes through stainless steel filter screen and active carbon filter screen in proper order, and the stainless steel filter screen can the filtering debris, and the active carbon filter screen can adsorb the particulate matter in the sewage and adsorb, but also can adsorb the peculiar smell, deodorizes, and then reaches the purpose of preliminary purification sewage.

Specifically, this domestic sewage purification unit's theory of operation: during the use, in sewage was by the inside shell 110 that gets into of box body 1231, the sewage that gets into in the shell 110 passes through stainless steel filter screen and active carbon filter screen in proper order, and the stainless steel filter screen can the filtering debris, and the active carbon filter screen can adsorb the particulate matter in the sewage and adsorb, but also can adsorb the peculiar smell, carries out the deodorization, and then reaches the purpose of preliminary purification sewage.

When the first filter element 210 and the second filter element 220 need to be replaced or cleaned, the rotating rod 2151 is driven by the rotating plate 2152, the rod 2151 gradually withdraws from the inverted L-shaped fixing plate 214 by the screw transmission principle, the situation that the rod 2151 is pressed on the cover plate 2131 is eliminated, the cover plate 2131 is pulled out from the side by the second handle 2133, the filter plate 211 can be further withdrawn, after the filter plate 211 is cleaned or replaced, the filter plate 211 is inserted into the clamping groove 142 again, the cover plate 2131 is inserted, the rod 2151 is screwed, the rod 2151 is pressed on the cover plate 2131 by the rod 2151, the filter plate 211 is arranged to be in an inverted trapezoid shape to be matched with the clamping groove 142 inside the U-shaped plate 141, the clamping groove 142 is conveniently pressed on the periphery of the filter plate 211, the upper end of the filter plate 211 is pressed by the sealing plate 2132, the purpose of fixing and sealing the gap between the upper end of the first filter element 210 and the upper end of, when the domestic sewage purification treatment device is detached, sewage in the shell 110 does not need to be emptied first, the detachment and replacement or the cleaning process is simple, and the problem that a filter screen of the pretreatment device of the existing domestic sewage purification treatment device is inconvenient to detach is effectively solved.

In sewage was by the inside shell 110 that gets into of box body 1231, the great pollutant of granule in the sewage can be stopped to wire net 1232, and the pollutant of accumulation on the wire net 1232 is when more, can directly take out box body 1231 clearance wire net 1232.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A domestic sewage purification treatment device is characterized by comprising

Shell assembly (100), shell assembly (100) includes shell (110), the funnel spare of intaking (120), outlet pipe (130), first draw-in groove board (140) and second draw-in groove board (150), the funnel spare of intaking (120) is fixed to be communicated in the upside of shell (110) one end outer wall, outlet pipe (130) is fixed to be communicated in the tip outer wall downside of the shell (110) other end, first draw-in groove board (140) are located inside being close to the funnel spare of intaking (120) one end of shell (110), second draw-in groove board (150) are located inside being close to outlet pipe (130) one end of shell (110), first draw-in groove board (140) and second draw-in groove board (150) all include U-shaped plate body (141) and set up in inside draw-in groove (142) of U-shaped plate body (141), U-shaped plate body (141) inner wall sets up to the down trapezoidal, the U-shaped plate body (141) is fixedly connected to the inner wall of the shell (110), and the U-shaped plate body (141) is aligned with the outer wall of the shell (110);

a filter assembly (200), the filter assembly (200) includes a first filter element (210) and a second filter element (220), the first filter element (210) and the second filter element (220) are respectively disposed in the first slot plate (140) and the second slot plate (150), the first filter element (210) and the second filter element (220) include a filter plate (211), a sealing ring (212), a pressing cover (213), an inverted L-shaped fixing plate (214) and a pressing screw (215), the filter plate (211) is disposed in an inverted trapezoid shape and is adapted to the slot (142) inside the U-shaped plate body (141), the filter plate (211) is inserted into the slot (142), the sealing ring (212) is fixedly connected to the periphery of the filter plate (211), the sealing ring (212) is pressed and attached to the slot (142), and the sealing ring (212) extends out of the housing (110), the pressing cover (213) comprises a cover plate (2131) and a sealing plate (2132), the sealing plate (2132) is fixedly connected to the cover plate (2131), the sealing plate (2132) can press the upper end of the sealing ring (212) and the upper end of the U-shaped plate body (141), one end of the inverted L-shaped fixing plate (214) is respectively and uniformly arranged on two sides of the cover plate (2131), one end of the inverted L-shaped fixing plate (214) is fixedly connected to the shell (110), the pressing screw (215) penetrates through the inverted L-shaped fixing plate (214) in a threaded manner, and the pressing screw (215) is respectively pressed on the cover plate (2131).

2. The domestic sewage purification treatment apparatus according to claim 1, wherein two sewage discharge pipes (160) are fixedly connected to the bottom end of the housing (110), one sewage discharge pipe (160) is located between the water inlet funnel member (120) and the first slot plate (140), the other sewage discharge pipe (160) is located between the first slot plate (140) and the second slot plate (150), and the ends of the two sewage discharge pipes (160) are fixedly connected with a gate valve.

3. The domestic sewage purification treatment apparatus according to claim 1, wherein universal wheels (170) are fixedly connected to the bottom end of the housing (110).

4. The domestic sewage purification treatment apparatus according to claim 1, wherein a first handle (180) is fixedly connected to an upper side of an outer wall of an end portion of one end of the housing (110).

5. The domestic sewage purification treatment apparatus according to claim 1, wherein the water inlet funnel member (120) comprises a water inlet funnel (121), a support plate (122) and a filter box (123), the support plate (122) is uniformly and fixedly connected to the inner wall of the water inlet funnel (121), the filter box (123) is inserted into the water inlet funnel (121), and the support plate (122) can support the filter box (123).

6. The domestic sewage purification treatment apparatus according to claim 5, wherein the filtering box (123) comprises a box body (1231), a steel wire mesh (1232), and a pressing plate (1233), the pressing plate (1233) is fixedly connected to the periphery of the bottom end of the box body (1231), and the pressing plate (1233) can press the steel wire mesh (1232) to the bottom end of the box body (1231).

7. The domestic sewage purification treatment apparatus according to claim 6, wherein the outer wall of the upper end periphery of the box body (1231) is fixedly connected with a baffle (1234).

8. The domestic sewage purification treatment apparatus according to claim 1, wherein a second handle (2133) is fixedly connected to one side of the cover plate (2131).

9. The domestic sewage purification treatment apparatus according to claim 1, wherein said compression screw (215) comprises a rod body (2151) and a rotating plate (2152) rotatably connected to one end of said rod body (2151).

10. The domestic sewage purification treatment apparatus according to claim 1, wherein said filter plate (211) comprises two coupling rings (2111) and a filter screen (2112), said two coupling rings (2111) are fixedly connected to each other, said two coupling rings (2111) are compressed on the periphery of both sides of said filter screen (2112), said filter screen (2112) of said first filter member (210) is configured as a stainless steel filter screen, and said filter screen (2112) of said second filter member (220) is configured as an activated carbon filter screen.