CN120349046A

CN120349046A - Domestic sewage treatment system

Info

Publication number: CN120349046A
Application number: CN202510361822.0A
Authority: CN
Inventors: 赵振业; 王铀; 孟君晟
Original assignee: Wuxi Haiyun New Material Technology Co ltd
Current assignee: Wuxi Haiyun New Material Technology Co ltd
Priority date: 2025-03-26
Filing date: 2025-03-26
Publication date: 2025-07-22

Abstract

The invention relates to the technical field of sewage treatment, in particular to a domestic sewage treatment system which comprises a decontamination box and a water pipe II, wherein a disinfection cylinder is integrally formed on the right side of the decontamination box, a water pump is fixedly arranged at the bottom of the inner side of the disinfection cylinder, a water pipe I is communicated with one side of the disinfection cylinder, one end of the water pipe I, which is far away from the disinfection cylinder, is fixedly connected with a biological purification box, the front side of the biological purification box is communicated with an ultrafiltration cylinder through the water pipe II, a drain pipe is fixedly connected with one side of the ultrafiltration cylinder, and a mounting frame is fixedly connected between the inner walls of the decontamination box. The sewage treatment system after the improvement gets rid of impurity in the sewage through edulcoration case, later disinfects the sediment through disinfection section of thick bamboo to sewage, and edulcoration case during operation provides power for the stirring part of disinfection section of thick bamboo, simultaneously, can trigger buoyancy gasbag in the sewage gets into disinfection section of thick bamboo and adds disinfection powder to disinfection section of thick bamboo in automatically, and the cooperation main shaft is rotatory, evenly throws the powder into sewage in the automation.

Description

Domestic sewage treatment system

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a domestic sewage treatment system.

Background

Domestic sewage is waste water discharged in daily life of residents and mainly originates from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprises and toilets, and the like, pollutants contained in the domestic sewage are mainly organic matters and a large number of pathogenic microorganisms, the organic matters existing in the domestic sewage are extremely unstable and are easy to decompose to generate malodor, bacteria and pathogens are propagated in a large quantity by taking the organic matters in the domestic sewage as nutrition, and infectious diseases can spread and prevail, so that the domestic sewage must be treated before being discharged, and a domestic sewage treatment system is provided.

The prior patent (publication number: CN 110589994A) discloses a domestic sewage treatment device and a treatment method of the domestic sewage treatment device, wherein the domestic sewage treatment device comprises a material dissolving cavity, an electrolysis cavity and a degradation box, the material dissolving cavity and the electrolysis cavity are respectively arranged in the degradation box, a liquid inlet of the electrolysis cavity is arranged in the material dissolving cavity, the electrolysis cavity is communicated with the degradation box, an electrolytic sedimentation device is arranged in the electrolysis cavity, and the electrolytic sedimentation device carries out electrolytic purification treatment on sewage after the material dissolving in the material dissolving cavity. The degradation tank is internally provided with a biodegradation tank structure, anaerobic microorganisms are arranged in the biodegradation tank structure, and the anaerobic microorganisms degrade organic pollutants in sewage. The invention removes most heavy metal ions in domestic sewage through chemicals in the solution cavity, and enhances electrolytic reaction in the electrolytic cavity through unreacted chemicals, so that the domestic sewage is more thoroughly electrolyzed and settled in the electrolytic cavity, and organic pollutants in the domestic sewage are degraded through microorganisms, and finally the domestic sewage is more thoroughly purified. The prior art has the following problems that the existing sewage treatment system mainly utilizes a filter screen to filter impurities in water, the filter screen can be blocked after long-time use, the filtering effect is reduced, and manual cleaning or replacement is needed.

Disclosure of Invention

The invention aims to provide a domestic sewage treatment system for solving the problems in the background technology.

The domestic sewage treatment system comprises a decontamination box and a water pipe II, wherein a disinfection cylinder is integrally formed on the right side of the decontamination box, a water pump is fixedly arranged at the bottom of the inner side of the disinfection cylinder, one side of the disinfection cylinder is communicated with the water pipe I, one end of the water pipe I, which is far away from the disinfection cylinder, is fixedly connected with a biological purification box, the front side of the biological purification box is communicated with an ultrafiltration cylinder through the water pipe II, and one side of the ultrafiltration cylinder is fixedly connected with a drain pipe;

The utility model discloses a cleaning box, including the inner wall of edulcoration case, the inner wall of edulcoration case is fixed connection, one side fixedly connected with motor of mounting bracket, one side of motor passes through connecting axle fixedly connected with main chain, main chain passes through chain and vice sprocket and constitutes transmission structure, the middle part fixedly connected with reciprocating screw of vice sprocket, the middle part sliding connection of reciprocating screw has reciprocating block, the vertical connecting rod of bottom fixedly connected with of reciprocating block, the bottom integrated into one piece of vertical connecting rod has the extrusion piece, the laminating of the surface of extrusion piece has the trigger piece, the bottom fixedly connected with dead lever of trigger piece, the bottom fixedly connected with shutoff piece of dead lever, the bottom fixedly connected with spring telescopic link of shutoff piece, the bottom fixedly connected with of spring telescopic link is in the inboard bottom surface of collecting box down, the top surface fixedly connected with gag lever post of reciprocating block, the middle part slip cap of gag lever post is equipped with the kickboard.

Preferably, triangular guide strips are arranged on two sides of the top of the impurity removal box, and a collecting groove is fixedly connected with the edge of the outer side of the top surface of the impurity removal box.

Preferably, two placing grooves are reserved in the middle of the bottom of the impurity removal box, a bubble machine is placed in the two placing grooves, and the top of the bubble machine is communicated with the inside of the impurity removal box through a pipeline.

Preferably, the bottom of edulcoration case is provided with three unloading passageway, and the inside of three unloading passageway corresponds respectively has shutoff piece, dead lever and trigger piece, the inside width of unloading passageway is unanimous with the outside width of shutoff piece and trigger piece.

Preferably, the top surface of the trigger block is semicircular, the bottom surface of the extrusion block is semicircular, and the front section of the plugging block is triangular.

Preferably, the disinfection section of thick bamboo includes the spacing frame of fixed connection at disinfection section of thick bamboo top, the middle part integrated into one piece of spacing frame has the stopper, the stopper slides and sets up the inside at T type spout, two sides about the rack are seted up to T type spout, the one end of rack is connected with the top of gag lever post.

Preferably, a gear is meshed with one side of the rack, the bottom surface of the gear is fixedly connected with a main shaft, the main shaft is divided into a hollow section, a connecting section and a solid section from top to bottom, and a stirring rod is integrally formed on the outer surface of the connecting section.

Preferably, the inside sliding connection of cavity section has the lifter, the bottom surface fixedly connected with buoyancy gasbag of lifter.

Preferably, a feeding pipe is fixedly connected to one side of the top end of the hollow section, and a discharging hole is formed in the position, below the feeding pipe, of the hollow section.

Preferably, the impurity removing box is communicated with the upper half part of the disinfection cylinder, and the water outlet of the water pump is overlapped with the central axis of the first water pipe.

Compared with the prior art, the invention has the beneficial effects that:

According to the invention, the external sewage pipeline is in butt joint with the water inlet of the impurity removal box, a large amount of domestic sewage is discharged into the disinfection cylinder through the impurity removal box, when the sewage passes through the impurity removal box, the light impurity and the heavy impurity are separated by utilizing different densities of different impurities, the light impurity and the heavy impurity are separated from the sewage and finally discharged into the lower collecting box and the collecting tank for the same temporary storage after the separation, so that the subsequent uniform cleaning is facilitated.

In the invention, in the process of removing impurities in the impurity removing box, the stirring rod in the sterilizing cylinder is driven to rotate through rack transmission, sewage in the sterilizing cylinder is stirred, so that the sewage and the sterilizing powder are better mixed, when the sewage enters the sterilizing cylinder, the floating air bag is utilized to float upwards to automatically add the sterilizing powder into the sterilizing cylinder to be mixed with the sewage, the main shaft rotates in a positive and negative rotation mode, the rotating speed is slower in the switching process, the main shaft rotates in a fast mode after the switching process is finished, the powder throwing coverage area can be adjusted in a self-adaptive mode according to the characteristic of the change of the rotating speed, and the sterilizing powder throwing coverage area is more uniform.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of a front cross-sectional perspective structure of the present invention;

FIG. 3 is a schematic view of a right-side cross-sectional perspective structure of the present invention;

FIG. 4 is a schematic front perspective view of the spindle portion of the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4 according to the present invention;

fig. 6 is a schematic diagram of the explosion structure of the main shaft of the present invention.

In the figure, 1, a trash box, 101, a mounting rack, 102, a motor, 103, a main chain, 104, a chain, 105, a secondary sprocket, 106, a reciprocating screw, 107, a reciprocating block, 108, a vertical connecting rod, 109, a squeezing block, 1010, a trigger block, 1011, a fixed rod, 1012, a plugging block, 1013, a spring telescopic rod, 1014, a lower collecting box, 1015, a limiting rod, 1016, a floating plate, 1017, a triangular guide bar, 1018, a collecting tank, 1019, a placing tank, 1020, a bubble machine, 1021, a discharging channel, 2, a sterilizing cylinder, 201, a limiting frame, 202, a limiting block, 203, a T-shaped chute, 204, a rack, 205, a gear, 206, a main shaft, 206a hollow section, 206b, a connecting section, 206c, a solid section, 207, a stirring rod, 208, a lifting rod, 209, a buoyancy air bag, 2010, a feeding pipe, 2011, a discharging port, 3, a water pump, 4, a water pipe I, 5, a biological purifying box, 6, a water pipe II, 7, an ultrafiltration cylinder, 8, and a water pipe.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 6, the invention provides a technical scheme that a domestic sewage treatment system comprises a decontamination box 1 and a water pipe II 6, wherein a disinfection cylinder 2 is integrally formed on the right side of the decontamination box 1, a water pump 3 is fixedly arranged at the bottom of the inner side of the disinfection cylinder 2, one side of the disinfection cylinder 2 is communicated with the water pipe I4, one end of the water pipe I4 far away from the disinfection cylinder 2 is fixedly connected with a biological purification box 5, the front side of the biological purification box 5 is communicated with an ultrafiltration cylinder 7 through the water pipe II 6, one side of the ultrafiltration cylinder 7 is fixedly connected with a drain pipe 8, the decontamination box 1 is communicated with the upper half part of the disinfection cylinder 2, the water outlet of the water pump 3 coincides with the central axis of the water pipe I4, when the domestic sewage treatment system is used, the external water pipe is in butt joint with the water inlet end of the decontamination box 1, the domestic sewage is discharged into the interior of the decontamination box 1, the impurities in the sewage are removed through the decontamination box 1, then the decontaminated sewage continuously flows into the disinfection cylinder 2 for proceeding, after the disinfection, the water pump 3 pumps the sewage into the biological purification box 5, the biological purification box 5 is converted by the biological purification machine into the biological purification box 5, the inorganic substances are finally discharged from the biological purification box 8, and finally the biological purification is achieved, and the aim of purifying the sewage is achieved, and the sewage is purified, and the sewage is discharged from the biological purification box 7.

In this embodiment, as shown in fig. 1 to 3, a mounting frame 101 is fixedly connected between the inner walls of the impurity removing box 1, one side of the mounting frame 101 is fixedly connected with a motor 102, one side of the motor 102 is fixedly connected with a main chain 103 through a connecting shaft, the main chain 103 and the auxiliary chain 105 form a transmission structure through a chain 104, the middle part of the auxiliary chain 105 is fixedly connected with a reciprocating screw 106, the middle part of the reciprocating screw 106 is slidably connected with a reciprocating block 107, the bottom surface of the reciprocating block 107 is fixedly connected with a vertical connecting rod 108, the bottom end of the vertical connecting rod 108 is integrally formed with an extrusion block 109, the outer surface of the extrusion block 109 is attached with a trigger block 1010, the bottom surface of the trigger block 1010 is fixedly connected with a fixing rod 1011, the bottom end of the fixing rod 1011 is fixedly connected with a plugging block 1012, the bottom surface of the plugging block 1012 is fixedly connected with a spring telescopic rod 1013, the bottom end of the spring telescopic rod 1013 is fixedly connected with the inner bottom surface of a lower collecting box 1014, the top surface of the reciprocating block 107 is fixedly connected with a limiting rod 1015, the middle sliding sleeve of the limiting rod 1015 is provided with a floating plate 1016, the two sides of the top of the impurity removing box 1 are provided with triangular guide strips 1017, the top surface edges of the impurity removing box 1 are fixedly connected with a collecting groove, the bottom surface of the collecting box 1 is fixedly connected with three channels 1021, and three channels of the bottom channels are provided with the plugging blocks 1021 are provided with the three channels and the inside the plugging blocks 1018 respectively The inner width of the blanking channel 1021 is consistent with the outer widths of the plugging block 1012 and the triggering block 1010, the top surface of the triggering block 1010 is semicircular, the bottom surface of the extrusion block 109 is semicircular, and the front cross section of the plugging block 1012 is triangular; when in operation, the external sewage pipe is firstly in butt joint with the impurity removal box 1, sewage is injected into the impurity removal box 1, the motor 102 is started at the moment, the motor 102 drives the main chain wheel 103 to rotate, the main chain wheel 103 drives the auxiliary chain wheel 105 to rotate through the transmission of the chain 104, the auxiliary chain wheel 105 rotates to drive the reciprocating screw 106 to rotate, the reciprocating block 107 is driven to reciprocate in the axial direction of the reciprocating screw 106 when the reciprocating screw 106 rotates, the vertical connecting rod 108 and the limit rod 1015 are simultaneously driven to synchronously displace when the reciprocating block 107 reciprocates, the extrusion block 109 at the bottom end is driven to displace when the vertical connecting rod 108 reciprocates, the extrusion block 109 is continuously contacted with the three triggering blocks 1010 when moving back and forth, and the contact surfaces of the triggering blocks 1010 and the extrusion block 109 are spherical, therefore, the extrusion block 109 can extrude the trigger block 1010 downwards, when the trigger block 1010 is extruded, the fixed rod 1011 on the bottom surface drives the blocking block 1012 to synchronously move downwards, and the spring telescopic rod 1013 is compressed when the blocking block 1012 moves downwards, in a normal state, the blocking block 1012 is positioned in the blanking channel 1021, namely the blocking block 1012 contacts with the inner wall of the blanking channel 1021, but when the trigger block 1010 is positioned at the outer side of the top of the blanking channel 1021, when heavy impurities sink to the bottom of the inner side of the impurity removing box 1, the heavy impurities enter the blanking channel 1021 from the gap between the trigger block 1010 and the blanking channel 1021 and are blocked by the top surface of the blocking block 1012 until the heavy impurities in the blanking channel 1021 are accumulated excessively, the extrusion block 109 is also moved to the top of the corresponding trigger block 1010, the trigger block 1010 extrudes downwards, the trigger block 1010 plugs the upper end of the blanking channel 1021, then the plugging block 1012 moves out from the lower end of the blanking channel 1021, the previously piled impurities slide down along the top surface of the plugging block 1012 to the lower collection box 1014 for collection, the same cleaning is convenient at the later stage, the structure can prevent the blanking channel 1021 from being piled up with impurities, the impurities overflow the blanking channel 1021 and then enter the sterilizing cylinder 2 along with water flow, the limiting rod 1015 moves back and forth along with the reciprocating block 107 in a reciprocating and linear manner, the floating plate 1016 is driven to move back and forth, the density of the floating plate 1016 is less than the density of water, thus the floating plate can float on the water surface, when the bubbles carry excessive impurities on the water surface, the floating plate 1016 can push the impurities on the water surface to the two sides of the top of the purifying box 1 in a reciprocating manner, when the floating plate 1016 moves to the top edge of the impurity removal box 1, the floating plate 1016 contacts with the triangular guide strip 1017, and under the continuous rotation of the reciprocating screw 106, the floating plate 1016 moves upwards along the triangular guide strip 1017 until the bottom of the edge of the floating plate 1016 passes over the top highest point of the triangular guide strip 1017, the floating plate 1016 pushes impurities into one side of the triangular guide strip 1017 far away from the middle part of the impurity removal box 1, then the impurities slide down along the inclined plane of the triangular guide strip 1017 to be collected in the collecting tank 1018, the structure can timely clean the impurities floating on the water surface, otherwise, excessive accumulation of the impurities on the water surface can influence the subsequent impurities to float upwards, so that the impurities on the water surface are thicker and thicker, finally, the impurities at the lower layer of the water surface can enter the disinfection cylinder 2 along with the water flow, the impurity removal box 1 can remove different impurities in the sewage according to the density of the impurities, and the impurities do not need to be completed by a filter screen, the problem of reduced filtering efficiency caused by the blockage of the filter screen is avoided, and compared with the filter screen, the filter screen has longer service life and saves the cost of frequently replacing the filter screen.

In this embodiment, as shown in fig. 3, two placing grooves 1019 are left in the middle of the bottom of the impurity removing box 1, a bubble machine 1020 is placed in the two placing grooves 1019, the top of the bubble machine 1020 is communicated with the inside of the impurity removing box 1 through a pipeline, the bubble machine 1020 injects external air into the inside of the impurity removing box 1 through the pipeline, and as the impurity removing box 1 is filled with sewage during operation, a large amount of bubbles are generated by the injection of the external air in the impurity removing box 1 and rise from the bottom of the impurity removing box 1 to the top, lighter impurity greasy dirt and the like in the sewage can be adsorbed in the rising process of the bubbles and carried to the liquid surface at the top of the impurity removing box 1 together, the purpose of removing lighter impurities is achieved, and heavier impurities can be settled to the bottom of the inner side of the impurity removing box 1 due to the action of gravity and accumulated.

In this embodiment, as shown in fig. 2 and fig. 4 to fig. 6, the disinfection cylinder 2 comprises a limit frame 201 fixedly connected to the top of the disinfection cylinder 2, a limit block 202 is integrally formed in the middle of the limit frame 201, the limit block 202 is slidably arranged in a T-shaped chute 203, the T-shaped chute 203 is arranged on the upper and lower sides of a rack 204, one end of the rack 204 is connected with the top end of a limit rod 1015, one side of the rack 204 is meshed with a gear 205, the bottom surface of the gear 205 is fixedly connected with a main shaft 206, the main shaft 206 is divided into a hollow section 206a, a connecting section 206b and a solid section 206c from top to bottom, a stirring rod 207 is integrally formed on the outer surface of the connecting section 206b, a lifting rod 208 is slidably connected in the hollow section 206a, a buoyancy air bag 209 is fixedly connected to the outer surface of the bottom end of the lifting rod 208, one side of the top end of the hollow section 206a is fixedly connected with a feeding pipe 2010, a discharging hole 2011 is arranged below the feeding pipe 2010, when the reciprocating block 107 reciprocates along the axis of the reciprocating screw 106, the reciprocating block 107 moves through the limit rod 1015, when the reciprocating block 204 moves linearly, the gear 205 drives the gear 205, the gear 206 rotates linearly, the gear 206 rotates on the main shaft 206a self-rotating shaft 206, and the self-rotates on the main shaft 206b, and the self-rotating shaft 206 rotates more rapidly, and the self-rotating on the hollow section 206a stirring rod 208, thereby the self-rotating in the hollow air bag 209, and the self-rotating inside the hollow air bag 209, and the self-rotating in the hollow air bag 206, and the self-cleaning rod is more rapidly rotates inside the hollow air bag 206, and the self-cleaning rod inside of the self-cleaning rod and the self-cleaning rod 206 when the self-cleaning rod and the self-cleaning rod 206 and the self-cleaning rod. The lifting rod 208 moves upwards along the internal straight line of the hollow section 206a to lift up the powder in the hollow section 206a, when the powder is lifted to the discharge port 2011, the main shaft 206 is in a autorotation state, so that the powder can be thrown all around and is thrown in the disinfection cylinder 2, and care needs to be taken that the movement state of the main shaft 206 is not unchanged but is changed in forward and reverse directions due to the fact that the rotation of the main shaft 206 is driven by the gear 205 when the rack 204 reciprocates, the stirring effect is better, the structure utilizes the characteristic that the initial rotation speed is lower when the main shaft 206 rotates forwards and backwards, the centrifugal force of the main shaft 206 is small at this moment, the throwing distance of the powder is shortened, and when the centrifugal force of the main shaft 206 rotates at a high speed, the throwing distance of the powder is large, so that the powder throwing coverage area is more comprehensive, the powder can be uniformly thrown to the surface of sewage in the disinfection cylinder 2, in addition, the lifting of the buoyancy air bag 209 is utilized to automatically add the powder into the disinfection cylinder 2, namely the lifting degree of the buoyancy air bag 209 is influenced, and the amount of the added powder can be self-adaptively adjusted to the disinfection cylinder 2.

The application method and the application advantages of the invention are that when the domestic sewage treatment system is used, the working process is as follows:

Firstly, the external sewage pipeline is in butt joint with the water inlet of the impurity removal box 1, then a large amount of domestic sewage is discharged into the disinfection cylinder 2 through the impurity removal box 1, when the sewage passes through the impurity removal box 1, the separation of lighter and heavier impurities is realized by utilizing the different densities of different impurities, the lighter and heavier impurities are separated from the sewage and finally discharged into the lower collection box 1014 and the collection tank 1018 for the same temporary storage after the separation, the subsequent uniform cleaning is convenient, the impurities in the sewage can be separated without a filter screen by the cleaning structure, the problem of reduced filtering efficiency caused by the condition of filter screen blockage and the like is avoided, compared with the filter screen, the service life of the mechanical structure is longer, the cost of frequently replacing the filter screen is saved, then, sewage enters the disinfection cylinder 2 to trigger the buoyancy air bag 209, so that the buoyancy air bag 209 floats upwards, the function of automatically adding disinfection powder is realized, the rotation of the main shaft 206 is utilized to throw the powder to all positions in the disinfection cylinder 2, the characteristic of slower rotation speed when the main shaft 206 is switched in forward and reverse rotation is utilized to change the coverage of the thrown disinfection powder, the powder throwing coverage area is more comprehensive, after disinfection is finished, the sewage is pumped into the biological purification tank 5 through the water pipe I4 by the water pump 3, after the sewage in the biological purification tank 5 is finished, an electric control valve (not shown in the figure) in the water pipe II 6 is opened, the sewage finally enters the ultrafiltration cylinder 7 for treatment, and the sewage is discharged from the drain pipe 8 after the treatment is finished.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The domestic sewage treatment system comprises a decontamination box (1) and a water pipe II (6), and is characterized in that a disinfection cylinder (2) is integrally formed on the right side of the decontamination box (1), a water pump (3) is fixedly arranged at the bottom of the inner side of the disinfection cylinder (2), a water pipe I (4) is communicated with one side of the disinfection cylinder (2), a biological purification box (5) is fixedly connected with one end, far away from the disinfection cylinder (2), of the water pipe I (4), the front side of the biological purification box (5) is communicated with an ultrafiltration cylinder (7) through the water pipe II (6), and a drain pipe (8) is fixedly connected with one side of the ultrafiltration cylinder (7);

The utility model discloses a trash box, which is characterized in that a mounting frame (101) is fixedly connected between the inner walls of the trash box (1), one side of the mounting frame (101) is fixedly connected with a motor (102), one side of the motor (102) is fixedly connected with a main chain wheel (103) through a connecting shaft, the main chain wheel (103) and an auxiliary chain wheel (105) form a transmission structure through a chain (104), the middle part of the auxiliary chain wheel (105) is fixedly connected with a reciprocating screw (106), the middle part of the reciprocating screw (106) is slidably connected with a reciprocating block (107), the bottom surface of the reciprocating block (107) is fixedly connected with a vertical connecting rod (108), the bottom end of the vertical connecting rod (108) is integrally formed with an extrusion block (109), the outer surface laminating of extrusion piece (109) has trigger piece (1010), the bottom surface fixedly connected with dead lever (1011) of trigger piece (1010), the bottom fixedly connected with shutoff piece (1012) of dead lever (1011), the bottom surface fixedly connected with spring telescopic link (1013) of shutoff piece (1012), the bottom fixedly connected with of spring telescopic link (1013) is at the inboard bottom surface of lower collecting box (1014), the top surface fixedly connected with gag lever post (1015) of reciprocating piece (107), the middle part slip cap of gag lever post (1015) is equipped with kickboard (1016).

2. The domestic sewage treatment system of claim 1, wherein triangular guide strips (1017) are arranged on two sides of the top of the impurity removal box (1), and a collecting tank (1018) is fixedly connected to the outer edge of the top surface of the impurity removal box (1).

3. The domestic sewage treatment system according to claim 1, wherein two placing grooves (1019) are reserved in the middle of the bottom of the impurity removal box (1), bubble machines (1020) are placed in the two placing grooves (1019), and the tops of the bubble machines (1020) are communicated with the inside of the impurity removal box (1) through pipelines.

4. The domestic sewage treatment system of claim 1, wherein three blanking channels (1021) are arranged at the bottom of the impurity removal box (1), the inside of each of the three blanking channels (1021) is respectively provided with a plugging block (1012), a fixed rod (1011) and a triggering block (1010), and the inner width of each blanking channel (1021) is consistent with the outer widths of the plugging blocks (1012) and the triggering blocks (1010).

5. The system of claim 4, wherein the trigger block (1010) has a semicircular top surface, the squeeze block (109) has a semicircular bottom surface, and the blocking block (1012) has a triangular front cross section.

6. The domestic sewage treatment system according to claim 1, wherein the disinfection cylinder (2) comprises a limiting frame (201) fixedly connected to the top of the disinfection cylinder (2), a limiting block (202) is integrally formed in the middle of the limiting frame (201), the limiting block (202) is slidably arranged in a T-shaped sliding groove (203), the T-shaped sliding groove (203) is formed in the upper surface and the lower surface of a rack (204), and one end of the rack (204) is connected with the top end of a limiting rod (1015).

7. The domestic sewage treatment system according to claim 6, wherein one side of the rack (204) is meshed with a gear (205), the bottom surface of the gear (205) is fixedly connected with a main shaft (206), the main shaft (206) is divided into a hollow section (206 a), a connecting section (206 b) and a solid section (206 c) from top to bottom, and a stirring rod (207) is integrally formed on the outer surface of the connecting section (206 b).

8. A domestic sewage treatment system according to claim 7, wherein the interior of the hollow section (206 a) is slidably connected with a lifting rod (208), and the outer surface of the bottom end of the lifting rod (208) is fixedly connected with a buoyancy air bag (209).

9. The domestic sewage treatment system of claim 8, wherein a feeding pipe (2010) is fixedly connected to one side of the top end of the hollow section (206 a), and a discharging hole (2011) is formed in the position, below the feeding pipe (2010), of the hollow section (206 a).

10. The domestic sewage treatment system according to claim 1, wherein the impurity removing box (1) is communicated with the upper half part of the disinfection cylinder (2), and the water outlet of the water pump (3) is coincident with the central axis of the first water pipe (4).