CN210287010U

CN210287010U - Full-automatic operation household sewage treatment device

Info

Publication number: CN210287010U
Application number: CN201921184210.5U
Authority: CN
Inventors: 张维志; 章燕; 周瑜
Original assignee: Yunnan Shuipei Technology Co Ltd
Current assignee: Yunnan Shuipei Technology Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-10
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a fully-automatic running domestic sewage treatment device, which belongs to the field of sewage treatment, and is characterized in that a fully-automatic running domestic sewage treatment device filters out larger sundries in sewage and arranges the larger sundries in a sewage discharge box through the mutual matching of a primary filter screen plate, a vibrator, a sewage discharge port and a buffering and limiting device, and can carry out secondary filtration on the sundries with smaller particle size in the sewage through a secondary filter device, and then remove fine impurities and peculiar smell in the sewage under the action of a quartz sand layer, a PP cotton layer and an active carbon adsorption layer, a water quality detector can detect the purified sewage, the sewage is extracted to the upper part of a purifying box through a water pump to be re-purified when the sewage is unqualified until the detection is qualified, a solenoid valve on a first connecting pipe is opened after the water quality is qualified, the treated water is collected in the storing box, thereby realizing the automatic running treatment of the domestic sewage, the purification effect is good, and purification efficiency is high, and degree of automation is high.

Description

Full-automatic operation household sewage treatment device

Technical Field

The utility model relates to a sewage treatment field, more specifically say, relate to a full automatic operation's domestic sewage treatment plant of family.

Background

Domestic sewage refers to wastewater generated in domestic water discharge of people in life and domestic sanitary facilities, and the domestic sewage is one of main water sources forming water pollution in urban areas in China, so that research needs to be carried out on the demand of sewage and the sanitary and health problems related to sewage recycling aiming at non-drinking, and the increase of water resources is needed in the economic development of the country and the improvement of the living standard of people, so that the development of unconventional water sources is urgently needed.

Along with the development of society, domestic sewage brings many influences to our life, the using water wisely is the responsibility that we every citizen should be used up, the discharge of a large amount of domestic sewage, the water resource has seriously been wasted, family domestic sewage treatment facility on the existing market, degree of automation is low, water after the processing needs interpersonal detection whether reach standard, if reach standard not reach standard again manual drawing back retreatment, if reach standard again manual discharge storage, lead to the treatment effeciency low, the treatment effect is poor, be difficult to satisfy people's user demand.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a full automatic operation's domestic sewage treatment plant of family possesses degree of automation height, advantage that the treatment effect is good, has solved the domestic sewage treatment device of family on the existing market, and degree of automation is low, leads to the treatment effeciency low, and the treatment effect is poor, is difficult to satisfy people's user demand's problem.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A fully-automatic running household sewage treatment device comprises a purification box and a storage box, wherein the bottom of the purification box is fixedly connected with the top of the storage box, the purification box is communicated with the storage box through a first connecting pipe, the top of the purification box is hinged with a box cover through a hinge, a water inlet pipe communicated with the interior of the purification box is arranged at the top of the box cover, a primary filter screen plate which is obliquely arranged is arranged inside the purification box, a vibrator is fixedly connected to the right side of the bottom of the primary filter screen plate, buffering limiting devices are arranged on the left side and the right side of the bottom of the primary filter screen plate, a sewage discharge port is formed in the left side of the purification box and corresponds to the primary filter screen plate, and a sewage discharge box is fixedly connected to the left;

the device comprises a purification box, a first-stage filter screen plate, a detachable second-stage filter device, a quartz sand layer, a PP cotton layer and an active carbon adsorption layer, wherein the detachable second-stage filter device is arranged in the purification box and below the first-stage filter screen plate, the quartz sand layer, the PP cotton layer and the active carbon adsorption layer sequentially pass through the purification box from top to bottom, a water quality detector is fixedly arranged on the inner bottom wall of the purification box, a PLC (programmable logic controller) is fixedly arranged on the right side of the purification box, the signal output end of the water quality detector is connected with the signal input end of the PLC through a signal line, a water pump is fixedly connected to the right side of the purification box and electrically connected with the PLC through a wire, the top of the water pump is communicated with a first water conveying pipe, one end, far away from the water pump, of the first water conveying pipe penetrates, one end of the second water delivery pipe, which is far away from the water pump, penetrates through the purification box and extends to the inside of the purification box and is positioned below the activated carbon adsorption layer;

the left side at holding box top is provided with the disinfectant case, the antiseptic solution has been annotated to the inside of disinfectant case, the disinfectant case is linked together through the second connecting pipe with the bin, all be provided with the solenoid valve on first connecting pipe and the second connecting pipe, two the solenoid valve passes through wire and PLC controller electric connection respectively, the bottom intercommunication of bin has the outlet pipe, be provided with the governing valve on the outlet pipe.

Preferably, the right side fixedly connected with driving motor of bin, driving motor passes through wire and PLC controller electric connection, the left side fixedly connected with puddler of driving motor output shaft, the left end of puddler runs through and extends to the inside of bin, the left end fixedly connected with of puddler rotates the seat, the left side of rotating the seat and the left side fixed connection of bin inner wall, the top of puddler and the stirring leaf that the equal fixedly connected with in bottom set up in turn.

Preferably, buffering stop device all includes the gag lever post, the top of gag lever post and the bottom fixed connection of one-level filter otter board, the cover is equipped with the locating piece on the gag lever post, the inside wall fixed connection of locating piece and purifying box, the bottom fixedly connected with stopper of gag lever post, the top and the below that just are located the locating plate on the gag lever post all overlap and are equipped with buffer spring, buffer spring relative one end respectively with the top and the bottom fixed connection of locating piece, two buffer spring deviates from mutually one end respectively with the bottom of one-level filter otter board and the top fixed connection of stopper.

Preferably, the second grade filter equipment includes the second grade filter screen board that the level was placed, the slot that extends backward from the front is seted up in the left side of purifying box inner wall, the right side of second grade filter screen board extends to the inside and the slot grafting of slot, the left side fixedly connected with of purifying box inner wall is by the support bar that extends backward from the front, the top of support bar and the bottom contact of second grade filter screen board, the left side of purifying box is seted up flutedly, the inside of recess is provided with T shape connecting block, the right side of T shape connecting block runs through and extends to the inside of purifying box and the left side fixed connection of second grade filter screen board.

Preferably, the right side of the T-shaped connecting block is fixedly connected with an L-shaped fixing rod, and the L-shaped fixing rod is fixedly connected with the left side of the purifying box through a bolt.

Preferably, a shaft seal is embedded in the right side of the storage box, and an inner ring of the shaft seal is fixedly connected with the stirring rod.

Preferably, the filter diameter of the first-stage filter screen plate is larger than that of the second-stage filter screen plate.

3. Advantageous effects

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

(1) this scheme is through the one-level filter otter board, the vibrator, drain and buffering stop device's mutually supporting, filter great debris in the sewage and fall the blow off incasement side by side, can carry out secondary filter to the less debris of particle size in the sewage through second grade filter equipment, then under the filtration through quartz sand layer and the cotton layer of PP, detach fine particle impurity in the sewage, then under the effect of active carbon adsorption layer, detach the peculiar smell in the sewage, water quality detector can detect the sewage after purifying, extract to the top of purifying box through the water pump when unqualified and repurify, up to detecting qualified, the solenoid valve on the first connecting pipe is opened after water quality is qualified, collect the bin in the water after handling, thereby realize the automatic operation of family domestic sewage and handle, purifying effect is good, and purification efficiency is high, degree of automation is high.

(2) Can disinfect to the water after purifying by adding the antiseptic solution in the bin through the disinfectant tank, through circular telegram driving motor, can drive the puddler and rotate, can drive the stirring leaf rotation along with the rotation of puddler for water and antiseptic solution can fully contact under the stirring of stirring leaf, have improved the disinfection effect of disinfecting, have further improved sewage treatment's effect.

(3) The primary filter screen plate can be driven to vibrate along with the vibration of the vibrator, the limiting rod, the positioning block and the limiting block can limit the primary filter screen plate in the vibration process of the primary filter screen plate, and the buffer spring can buffer the primary filter screen plate.

(4) Can filter the less debris of particle diameter in the sewage through the secondary filter otter board, through applying the power of pulling left to T shape connecting block for the secondary filter otter board separates with the slot and dismantles from the purifying box, and convenient the washing, thereby can not block up, can improve sewage treatment's effect, makes things convenient for people to use.

(5) Can fix spacingly to T shape connecting block through mutually supporting of L shape dead lever and bolt, adopt the mode of bolt fastening also conveniently to dismantle L shape dead lever from the purifying box simultaneously.

Drawings

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

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the point B in FIG. 1 according to the present invention;

fig. 4 is an enlarged view of the point C in fig. 1 according to the present invention.

The reference numbers in the figures illustrate:

1. a purification box; 2. a storage tank; 3. a box cover; 4. a water inlet pipe; 5. a first-stage filter screen plate; 6. a vibrator; 7. a buffer limiting device; 71. a limiting rod; 72. positioning blocks; 73. a limiting block; 74. a buffer spring; 8. a sewage draining outlet; 9. a sewage draining tank; 10. a secondary filtration device; 101. a second-stage filter screen plate; 102. a slot; 103. a supporting strip; 104. a groove; 105. a T-shaped connecting block; 11. a quartz sand layer; 12. a PP cotton layer; 13. an activated carbon adsorption layer; 14. a water quality detector; 15. a PLC controller; 16. a water pump; 17. a first water delivery pipe; 18. a second water delivery pipe; 19. a disinfectant tank; 20. a water outlet pipe; 21. a drive motor; 22. a stirring rod; 23. stirring blades; 24. an L-shaped fixing rod.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, a fully automatic operation domestic sewage treatment device comprises a purification box 1 and a storage box 2, wherein the bottom of the purification box 1 is fixedly connected with the top of the storage box 2, the purification box 1 is communicated with the storage box 2 through a first connecting pipe, the top of the purification box 1 is hinged with a box cover 3 through a hinge, the top of the box cover 3 is provided with a water inlet pipe 4 communicated with the inside of the purification box 1, the inside of the purification box 1 is provided with a primary filter screen plate 5 which is obliquely arranged, the right side of the bottom of the primary filter screen plate 5 is fixedly connected with a vibrator 6, the vibrator 6 is a P-series piston vibrator, the left side and the right side of the bottom of the primary filter screen plate 5 are both provided with buffer limiting devices 7, the number of the buffer limiting devices 7 is at least four, the buffer limiting devices are uniformly distributed, so as to increase the stability of the primary filter, a drain tank 9 is fixedly connected on the left side of the purifying tank 1 and corresponds to the drain outlet 8.

A detachable secondary filter device 10 is arranged in the purifying box 1 and below the primary filter screen plate 5, a quartz sand layer 11, a PP cotton layer 12 and an activated carbon adsorption layer 13 are sequentially fixed in the purifying box 1 and below the secondary filter device 10 from top to bottom through screws, a water quality detector 14 is fixedly arranged on the inner bottom wall of the purifying box 1, a PLC (programmable logic controller) 15 is fixedly arranged on the right side of the purifying box 1, a signal output end of the water quality detector 14 is connected with a signal input end of the PLC 15 through a signal line, a water pump 16 is fixedly connected on the right side of the purifying box 1, the water pump 16 is 25LG3-10x3 in model number, the water pump 16 is electrically connected with the PLC 15 through a conducting wire, a first water pipe 17 is communicated with the top of the water pump 16, one end, far away from the water pump 16, of the first water pipe 17 penetrates through and extends into the purifying box 1 and is located above the secondary, the bottom of the water pump 16 is communicated with a second water pipe 18, and one end of the second water pipe 18, which is far away from the water pump 16, penetrates through and extends to the inside of the purification box 1 and is located below the activated carbon adsorption layer 13.

The left side at 2 tops of bin 2 is provided with disinfectant tank 19, disinfectant tank 19's inside is annotated there is the antiseptic solution, disinfectant tank 19 is linked together through the second connecting pipe with bin 2, all be provided with the solenoid valve on first connecting pipe and the second connecting pipe, two solenoid valves pass through wire and 15 electric connection of PLC controller respectively, bin 2's bottom intercommunication has outlet pipe 20, is provided with the governing valve on the outlet pipe 20.

Further, the right side fixedly connected with driving motor 21 of bin 2, driving motor 21's model is YE2-132M-4, driving motor 21 passes through wire and PLC controller 15 electric connection, the left side fixedly connected with puddler 22 of driving motor 21 output shaft, the left end of puddler 22 runs through and extends to the inside of bin 2, the left end fixedly connected with of puddler 22 rotates the seat, the left side of rotating the seat and the left side fixed connection of bin 2 inner wall, puddler 22's top and the equal fixedly connected with in bottom stir leaf 23 that sets up in turn, through circular telegram driving motor 21, can drive puddler 22 and rotate, can drive the rotation of stir leaf 23 along with puddler 22's rotation, make water and antiseptic solution can fully contact under the stirring of stir leaf 23, the disinfection effect of disinfecting has been improved.

Further, the buffering and limiting devices 7 each comprise a limiting rod 71, the top of the limiting rod 71 is fixedly connected with the bottom of the primary filter screen plate 5, a positioning block 72 is sleeved on the limiting rod 71, the positioning block 72 is fixedly connected with the inner side wall of the purification box 1, a limiting block 73 is fixedly connected with the bottom end of the limiting rod 71, buffering springs 74 are sleeved on the limiting rod 71 and above and below the positioning block, the opposite ends of the buffering springs 74 are fixedly connected with the top and the bottom of the positioning block 72 respectively, the opposite ends of the two buffering springs 74 are fixedly connected with the bottom of the primary filter screen plate 5 and the top of the limiting block 73 respectively, the primary filter screen plate 5 can be driven to vibrate along with the vibration of the vibrator 6, and in the vibration process of the primary filter screen plate 5, the limiting rod 71, the positioning block 72 and the limiting block 73 can limit the first-stage filter screen plate 5, and the buffer spring 74 can buffer.

Further, the secondary filtering device 10 comprises a horizontally arranged secondary filtering screen plate 101, the left side of the inner wall of the purifying box 1 is provided with a slot 102 extending from front to back, the right side of the secondary filtering screen plate 101 extends into the slot 102 and is inserted into the slot 102, the left side of the inner wall of the purifying box 1 is fixedly connected with a supporting strip 103 extending from front to back, the top of the supporting strip 103 is contacted with the bottom of the secondary filtering screen plate 101, the left side of the purifying box 1 is provided with a groove 104, the inside of the groove 104 is provided with a T-shaped connecting block 105, the right side of the T-shaped connecting block 105 penetrates through and extends into the purifying box 1 and is fixedly connected with the left side of the secondary filtering screen plate 101, impurities with small particle size in sewage can be filtered through the secondary filtering screen plate 101, and the secondary filtering screen plate 101 is separated from the slot 102 and detached from the purifying box 1 by applying a pulling force to the, the cleaning is convenient, so that the blockage is avoided, the sewage treatment effect can be improved, and the use by people is facilitated.

Further, the right side fixedly connected with L shape dead lever 24 of T shape connecting block 105, L shape dead lever 24 passes through the left side fixed connection of bolt and purifying box 1, can fix spacingly to T shape connecting block 105 through mutually supporting of L shape dead lever 24 and bolt, adopts the mode of bolt fastening also to conveniently dismantle L shape dead lever 24 from purifying box 1 simultaneously.

Further, the shaft seal is embedded in the right side of the storage box 2, the inner ring of the shaft seal is fixedly connected with the stirring rod 22, the sealing performance of the storage box 2 is effectively guaranteed through the shaft seal, and meanwhile the normal work of the stirring rod 22 is not affected.

Further, the filter diameter of the first-stage filter screen plate 5 is larger than that of the second-stage filter screen plate 101.

The working principle is as follows: when the device is used, domestic sewage to be treated is introduced into the purifying box 1 through the water inlet pipe 4, large impurities in the sewage are removed through the filtration of the primary filter screen 5, meanwhile, the vibration of the vibrator 6 drives the large impurities on the obliquely arranged primary filter screen 5 to vibrate, so that the impurities fall into the sewage discharge box 9 from the sewage discharge outlet 8 along the primary filter screen 5, the sewage after impurity removal falls onto the secondary filter screen in the secondary filter device 10 for secondary filtration, the impurities with smaller particle size are filtered, fine particle impurities in the sewage are removed through the filtration of the quartz sand layer 11 and the PP cotton layer 12 in sequence, organic hazardous substances, pigments, heavy metals and peculiar smells in the sewage are removed under the action of the activated carbon adsorption layer 13, meanwhile, the water quality detector 14 detects the treated water, and when the detection is unqualified, the water pump 16, the water pump and the water pump are used, The second water pipe 18 and the first water pipe 17 are matched with each other, unqualified water is pumped above the secondary filtering device 10 again for re-purification until the water is qualified, after the water is qualified, the PLC 15 controls the electromagnetic valve on the first connecting pipe to be opened, and the treated water is collected into the storage tank 2, so that the automatic running treatment of the domestic sewage is realized;

a user can open the electromagnetic valve on the second connecting pipe through the PLC 15, so that disinfectant in the disinfectant tank 19 flows into the storage tank 2 to be mixed with purified water, and the water is sterilized and disinfected, meanwhile, the driving motor 21 is electrified to work to drive the stirring rod 22 to rotate, the stirring blade 23 can be driven to rotate along with the rotation of the stirring rod 22, so that the water and the disinfectant can be fully contacted under the stirring of the stirring blade 23, the sterilization and disinfection effects are improved, and finally, when the treated sewage is used, only the regulating valve on the water outlet pipe 20 needs to be opened;

after the cleaning box is used for a period of time, the first-stage filter screen plate 5 can be cleaned by opening the box cover 3, the blockage of the first-stage filter screen plate 5 is avoided, and the force for pulling the T-shaped connecting block 105 is exerted leftwards, so that the second-stage filter screen plate 101 is separated from the slot 102 and is detached from the purifying box 1, the cleaning is convenient, the blockage is avoided, the sewage treatment effect can be improved, and the cleaning box is convenient for people to use.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a full automatic operation's domestic sewage treatment plant of family, includes purifying box (1) and bin (2), its characterized in that: the bottom of the purifying box (1) is fixedly connected with the top of the storage box (2), the purifying box (1) is communicated with the storage box (2) through a first connecting pipe, the top of the purifying box (1) is hinged with a box cover (3) through a hinge, the top of the box cover (3) is provided with a water inlet pipe (4) communicated with the inside of the purifying box (1), a first-stage filter screen plate (5) which is obliquely arranged is arranged in the purifying box (1), the right side of the bottom of the first-stage filter screen plate (5) is fixedly connected with a vibrator (6), the left side and the right side of the bottom of the first-stage filter screen plate (5) are both provided with a buffering and limiting device (7), a sewage draining outlet (8) is arranged on the left side of the purifying box (1) and corresponds to the first-stage filter screen plate (5), a sewage draining box (9) is fixedly connected to the left side of the purifying box (1) and corresponds to the sewage draining outlet (8);

the water quality monitoring device is characterized in that a detachable secondary filtering device (10) is arranged in the purifying box (1) and below the primary filtering screen plate (5), a quartz sand layer (11), a PP cotton layer (12) and an active carbon adsorption layer (13) sequentially pass through screws from top to bottom in the purifying box (1), a water quality detector (14) is fixedly arranged on the inner bottom wall of the purifying box (1), a PLC (programmable logic controller) (15) is fixedly arranged on the right side of the purifying box (1), a signal output end of the water quality detector (14) is connected with a signal input end of the PLC (15) through a signal line, a water pump (16) is fixedly connected to the right side of the purifying box (1), the water pump (16) is electrically connected with the PLC (15) through a wire, and a first water conveying pipe (17) is communicated with the top of the water pump (16), one end, far away from the water pump (16), of the first water pipe (17) penetrates through and extends into the purification box (1) and is located above the secondary filtering device (10), the bottom of the water pump (16) is communicated with a second water pipe (18), and one end, far away from the water pump (16), of the second water pipe (18) penetrates through and extends into the purification box (1) and is located below the activated carbon adsorption layer (13);

the left side at bin (2) top is provided with disinfectant tank (19), disinfectant has been annotated to the inside of disinfectant tank (19), disinfectant tank (19) are linked together through the second connecting pipe with bin (2), all be provided with the solenoid valve on first connecting pipe and the second connecting pipe, two the solenoid valve is respectively through wire and PLC controller (15) electric connection, the bottom intercommunication of bin (2) has outlet pipe (20), be provided with the governing valve on outlet pipe (20).

2. The fully automatic domestic sewage treatment apparatus according to claim 1, wherein: the right side fixedly connected with driving motor (21) of bin (2), driving motor (21) passes through wire and PLC controller (15) electric connection, left side fixedly connected with puddler (22) of driving motor (21) output shaft, the left end of puddler (22) runs through and extends to the inside of bin (2), the left end fixedly connected with of puddler (22) rotates the seat, the left side of rotating the seat and the left side fixed connection of bin (2) inner wall, the top of puddler (22) and the equal fixedly connected with in bottom stir leaf (23) that set up in turn.

3. The fully automatic domestic sewage treatment apparatus according to claim 1, wherein: buffering stop device (7) all include gag lever post (71), the top of gag lever post (71) and the bottom fixed connection of one-level filter screen board (5), the cover is equipped with locating piece (72) on gag lever post (71), the inside wall fixed connection of locating piece (72) and purifying box (1), the bottom fixedly connected with stopper (73) of gag lever post (71), the top that just is located the locating plate on gag lever post (71) and below all overlap and are equipped with buffer spring (74), buffer spring (74) relative one end respectively with the top and the bottom fixed connection of locating piece (72), two the one end that buffer spring (74) deviates from mutually filters the bottom of screen board (5) and the top fixed connection of stopper (73) with the one-level respectively.

4. The fully automatic domestic sewage treatment apparatus according to claim 1, wherein: secondary filter equipment (10) are including level placement's secondary filter otter board (101), slot (102) by preceding backward extension are seted up in the left side of purifying box (1) inner wall, the right side of secondary filter otter board (101) extends to the inside and slot (102) of slot (102) and pegs graft, the left side fixedly connected with of purifying box (1) inner wall is by preceding support bar (103) that backward extends, the top of support bar (103) and the bottom contact of secondary filter otter board (101), recess (104) are seted up in the left side of purifying box (1), the inside of recess (104) is provided with T shape connecting block (105), the right side of T shape connecting block (105) runs through and extends to the inside of purifying box (1) and the left side fixed connection of secondary filter otter board (101).

5. The fully automatic household sewage treatment device according to claim 4, wherein: the right side of the T-shaped connecting block (105) is fixedly connected with an L-shaped fixing rod (24), and the L-shaped fixing rod (24) is fixedly connected with the left side of the purifying box (1) through a bolt.

6. The fully automatic domestic sewage treatment apparatus according to claim 2, wherein: the right side of the storage box (2) is embedded with a shaft seal, and the inner ring of the shaft seal is fixedly connected with the stirring rod (22).

7. The fully automatically operated domestic sewage treatment apparatus according to claim 1 or 4, wherein: the filter diameter of the first-stage filter screen plate (5) is larger than that of the second-stage filter screen plate (101).