A domestic sewage treatment device for municipal water supply and drainage

Abstract

The present invention discloses a domestic sewage treatment device for municipal water supply and drainage, which relates to the technical field of sewage treatment. The domestic sewage treatment device for municipal water supply and drainage includes a transfer tank. A treatment tank communicating with the inside of the transfer tank is fixedly connected to the top of the transfer tank. A bent injection pipe is fixedly connected to the top of the treatment tank, and the upper end of the injection pipe communicates with the inside of the treatment tank. Upper and lower partitions are respectively fixedly connected to the upper and lower sides of the inner wall of the treatment tank. The opposite sides of the upper and lower partitions are both arc-shaped. A material scattering mechanism is arranged inside the treatment tank, and a screening mechanism is arranged on the inner wall of the treatment tank. The domestic sewage treatment device for municipal water supply and drainage can separate impurities in the fecal mixture, and at the same time can automatically transfer the impurities, avoiding the situation that the impurities always adhere to the filter screen and affecting the subsequent filtration of the fecal mixture, improving the use effect of the device, and is worthy of promotion.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly relates to a domestic sewage treatment device for municipal water supply and drainage. Background Art

[0002] Domestic sewage mostly refers to the waste water discharged after being used in the daily life of residents at their living places. It is mixed with a large number of bacteria, eggs, and has a stinky and pungent smell. It often causes a large number of pathogenic bacteria to multiply due to water eutrophication. Especially the toilet sewage mixed with feces should be the top priority in the wastewater treatment link. If not properly treated, not only the pipeline is easily blocked, but also the soil and water quality at the discharge site may be polluted.

[0003] Currently, in the process of treating fecal sewage, special suction equipment is often used to extract it, and then filter equipment is used to filter impurities such as sanitary napkins, family planning products, and stones in the fecal sewage to avoid affecting the subsequent treatment of fecal sewage. However, during the filtering process, since the impurities to be filtered and treated always remain on the filter screen and cannot be transferred, it will affect the continuous injection of the fecal mixture, thereby reducing the treatment efficiency of fecal sewage. Summary of the Invention

[0004] The purpose of the present invention is to at least solve one of the technical problems existing in the prior art, and provide a domestic sewage treatment device for municipal water supply and drainage, which can solve the problems in the background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A domestic sewage treatment device for municipal water supply and drainage, including a transfer tank, the top of the transfer tank is fixedly connected with a treatment tank that is communicated with the inside of the transfer tank, the top of the treatment tank is fixedly connected with a bent injection pipe, the upper end of the injection pipe is communicated with the inside of the treatment tank, the upper and lower sides of the inner wall of the treatment tank are respectively fixedly connected with an upper partition plate and a lower partition plate, the opposite sides of the upper partition plate and the lower partition plate are both arc-shaped, a material scattering mechanism is arranged inside the treatment tank, a screening mechanism is arranged on the inner wall of the treatment tank, the screening mechanism is located directly below the material scattering mechanism, a cleaning mechanism is arranged between the upper partition plate and the lower partition plate, a filter screen is fixedly connected to the inner wall of the treatment tank, and a box door is arranged on the surface of the treatment tank;

[0006] The screening mechanism is located directly below the material scattering mechanism. The inner walls of the four inner cavities of the cross-shaped connecting pipe are all rotatably connected with rotating sleeves. A square rod is slidably connected inside the rotating sleeve. Connecting grooves matching the square rod are opened at both ends of the cross bar. A third spring is fixedly connected between the square rod and the rotating sleeve. One end of the four rotating sleeves away from the cross bar and the vertical bar is fixedly connected with a bevel gear, and the four bevel gears are meshed with each other.

[0007] Preferably, a mesh-shaped scraping rod is fixedly connected to the inner wall of the processing box. The scraping rod is located at the bottom of the screening mechanism and contacts the surfaces of the cross bar and the vertical bar.

[0008] Preferably, the bulk material mechanism includes a discharge box fixedly connected to the inner wall of the processing box. The lower part of the discharge box is open. A plurality of blocking blocks arranged at equal intervals are slidably connected to the inner wall of the discharge box. The cross section of the blocking block is diamond-shaped. Chute grooves are formed on both sides of the discharge box. Movable plates are fixedly connected to both sides of the blocking block. The surfaces of the movable plates are slidably connected to the inside of the discharge box. The movable plates penetrate into the inside of the chute grooves. Second springs are fixedly connected to the surfaces of the movable plates. The ends of the second springs away from the movable plates are fixedly connected to the inner walls of the chute grooves.

[0009] Preferably, a first motor is fixedly connected to the surface of the processing box. Two reciprocating lead screws that both protrude from the surface of the processing box are rotatably connected to the inside of the processing box. The surfaces of the two reciprocating lead screws located inside the processing box are respectively rotatably connected to both sides of the discharge box, and the two reciprocating lead screws are respectively inserted into the chute grooves on both sides of the discharge box. First belt pulleys are fixedly connected to the ends of the two reciprocating lead screws that protrude from the surface of the processing box. A first belt pulley is also fixedly connected to the output end of the first motor. A first belt is connected to the surfaces of the three first belt pulleys in a transmission manner.

[0010] Preferably, push blocks are sleeved on the surfaces of the two reciprocating lead screws. The upper sides of the push blocks are conical. The surfaces of the push blocks are slidably connected to the inner walls of the chute grooves. A lead screw sleeve that matches the reciprocating lead screw is arranged inside the push block.

[0011] Preferably, the cleaning mechanism includes a rotating roller rotatably connected to the inner wall of the processing box. One end of the rotating roller protrudes from the surface of the processing box. A fixed ring sleeve is fixedly connected to the surface of the rotating roller. Fixed sleeves are fixedly connected to the surface of the rotating roller at equal intervals. A pressing rod is slidably connected to the inner wall of the fixed sleeve. The pressing rod penetrates through the surface of the fixed ring sleeve and is slidably connected to the inside of the fixed ring sleeve. The surface of the pressing rod contacts the arc surface of the lower partition plate and the surface of the screening mechanism. The end of the pressing rod away from the rotating roller is spherical. A first spring is fixedly connected between the pressing rod and the fixed sleeve.

[0012] Preferably, a rotating rod is rotatably connected to the inside of the processing box. One end of the rotating rod also protrudes from the surface of the processing box. Sweeping rods are fixedly connected to the surface of the rotating rod at equal intervals. The sweeping rods are located between the two pressing rods.

[0013] Preferably, a second motor is fixedly connected to the surface of the processing box. The output end of the second motor is fixedly connected to one end of the rotating roller located outside the processing box. A gear is fixedly connected to one end of the rotating roller located outside the processing box. A gear is also fixedly connected to one end of the rotating rod located outside the processing box. The two gears are meshed with each other.

[0014] Preferably, a second pulley is fixedly connected to the output end of the second motor. A second pulley is also fixedly connected to one end of the cross bar located outside the processing box. A second belt is drivingly connected to the surfaces of the two second pulleys.

[0015] Preferably, a liquid storage cylinder is fixedly connected to the surface of the transfer box. A pump body is fixedly connected to the surface of the processing box. An input end of the pump body is fixedly connected to a connecting pipe. One end of the connecting pipe away from the pump body penetrates into the interior of the liquid storage cylinder and is fixedly connected to the interior of the liquid storage cylinder. An output end of the pump body penetrates into the interior of the processing box and is fixedly connected to the interior of the processing box. A T-shaped spraying pipe is rotatably connected to the output end of the pump body. A fixing frame is fixedly connected to the inner wall of one end of the spraying pipe located inside the output end of the pump body. A turbine blade is fixedly connected to the surface of the fixing frame. A rotating shaft is fixedly connected to the surface of the spraying pipe. A disturbing rod is fixedly connected to the surface of the rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) This domestic sewage treatment device for municipal water supply and drainage can separate impurities in the fecal mixture and can automatically transfer the impurities, avoiding the situation that impurities always adhere to the filter screen and affecting the subsequent filtration of the fecal mixture, improving the use effect of the device and being worthy of promotion.

[0018] (2) This domestic sewage treatment device for municipal water supply and drainage can clean the discharged impurities to reduce the amount of feces on the surface of the impurities and reduce the psychological burden of subsequent staff in cleaning the impurities.

[0019] (3) This domestic sewage treatment device for municipal water supply and drainage evenly feeds the fecal mixture, reducing the screening intensity of the screening mechanism on the fecal mixture, improving the screening quality and screening efficiency of the device for the fecal mixture, and being worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the drawings and embodiments:

[0021] Figure 1 is a schematic structural diagram of a domestic sewage treatment device for municipal water supply and drainage according to the present invention;

[0022] Figure 2 is a schematic diagram of the surface structure of the transfer box of the present invention;

[0023] Figure 3 Schematic diagram of the internal structure of the processing box of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged schematic diagram at position A in the present invention;

[0025] Figure 5 For the present invention Figure 3 Enlarged schematic diagram at position B in the present invention;

[0026] Figure 6 Schematic diagram of the internal structure of the cross-connecting pipe of the present invention;

[0027] Figure 7 Schematic diagram of the internal structure of the discharge box of the present invention.

[0028] Reference numerals: 1, transfer box; 2, liquid storage cylinder; 3, connecting pipe; 4, pump body; 5, processing box; 6, injection pipe; 7, box door; 8, first motor; 9, first belt; 10, reciprocating lead screw; 11, first pulley; 12, scraping rod; 13, gear; 14, second motor; 15, movable plate; 16, second spring; 17, second belt; 18, second pulley; 19, discharge box; 20, blocking block; 21, screening mechanism; 2101, cross bar; 2102, vertical bar; 2103, square bar; 2104, connecting groove; 2105, cross-connecting pipe; 2106, rotating sleeve; 2107, third spring; 2108, bevel gear; 22, rotating roller; 23, rotating rod; 24, sweeping rod; 25, filter screen; 26, rotating shaft; 27, disturbing rod; 28, spraying pipe; 29, fixed ring sleeve; 30, extrusion rod; 31, first spring; 32, fixed sleeve; 33, fixed bracket; 34, turbine blade; 35, sliding groove; 36, pushing block; 37, upper partition board; 38, lower partition board. Detailed implementation manners

[0029] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to visually and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

[0030] Please refer to Figure 1-7The present invention provides a technical solution: a domestic sewage treatment device for municipal water supply and drainage, comprising a transfer box 1, a treatment box 5 connected to the interior of the transfer box 1 is fixedly connected to the top of the transfer box 1, a bent injection pipe 6 is fixedly connected to the top of the treatment box 5, the upper end of the injection pipe 6 is connected to the interior of the treatment box 5, and is used to inject feces into the device, and an upper partition 37 and a lower partition 38 are fixedly connected to the upper and lower sides of the inner wall of the treatment box 5, respectively, and the opposite sides of the upper partition 37 and the lower partition 38 are arc-shaped, so as to divide the space inside the treatment box 5.

[0031] A bulk material mechanism is provided inside the processing box 5, and the bulk material mechanism includes a discharge box 19 fixedly connected to the inner wall of the processing box 5, the lower part of the discharge box 19 is open, and the inner wall of the discharge box 19 is slidably connected with equidistantly arranged blocking blocks 20, and the cross-section of the blocking blocks 20 is rhombus-shaped, which is used to block the bottom of the discharge box 19, and both sides of the discharge box 19 are provided with slide grooves 35, and both sides of the blocking blocks 20 are fixedly connected with movable plates 15, and the surface of the movable plate 15 is slidably connected to the inside of the discharge box 19, and the movable plate 15 penetrates into the inside of the slide groove 35, and the surface of the movable plate 15 is fixedly connected with a second spring 16, and the end of the second spring 16 away from the movable plate 15 is fixedly connected to the inner wall of the slide groove 35, so as to reset the movable plate 15 and the blocking blocks 20.

[0032] A first motor 8 is fixedly connected to the surface of the processing box 5, and two reciprocating screws 10 are rotatably connected inside the processing box 5, both of which protrude from the surface of the processing box 5. The surfaces of the two reciprocating screws 10 located inside the processing box 5 are rotatably connected to the two sides of the discharge box 19 respectively, and the two reciprocating screws 10 are respectively inserted into the slide grooves 35 on both sides of the discharge box 19, and one end of the two reciprocating screws 10 protruding from the surface of the processing box 5 is fixedly connected to the first pulley 11, and the output end of the first motor 8 is also fixedly connected to the first pulley 11, and the surfaces of the three first pulleys 11 are transmission-connected to the first belt 9, so that through the arrangement of the three first pulleys 11 and the first belt 9, the first motor 8 can synchronously drive the two reciprocating screws 10 to rotate synchronously when started, thereby ensuring the smooth operation of the device.

[0033] The surfaces of the two reciprocating screw rods 10 are both sleeved with a pushing block 36, the upper side of the pushing block 36 is conical, the surface of the pushing block 36 is slidably connected to the inner wall of the slide groove 35, and the interior of the pushing block 36 is provided with a screw sleeve matching the reciprocating screw rod 10. The cooperation between the reciprocating screw rod 10 and the screw sleeve is an existing conventional technical means. When the reciprocating screw rod 10 is started, it can drive the pushing block 36 to reciprocate.

[0034] The inner wall of the treatment box 5 is provided with a screening mechanism 21. The screening mechanism 21 is located directly below the bulk material mechanism and is used to filter impurities in the feces. The screening mechanism 21 includes multiple cross bars 2101 and vertical bars 2102. One cross bar 2101 penetrates the surface of the treatment box 5 and is rotatably connected to the inside of the treatment box 5. The cross bars 2101 and vertical bars 2102 in contact with the inner wall of the treatment box 5 are both rotatably connected to the inner wall of the treatment box 5. A cross connecting pipe 2105 is arranged between the cross bar 2101 and the vertical bar 2102 to connect adjacent cross bars 2101 and vertical bars 2102. Rotating sleeves 2106 are rotatably connected to the inner walls of the four inner cavities of the cross connecting pipe 2105. A square rod 2103 is slidably connected to the inside of the rotating sleeve 2106. Connecting grooves 2104 matching the square rod 2103 are opened at both ends of the cross bar 2101. When the square rod 2103 is inserted into the connecting groove 2104, when the cross bar 2101 or the vertical bar 2102 rotates, it can synchronously drive the corresponding rotating sleeve 2106 to rotate, ensuring the smooth operation of the device.

[0035] A third spring 2107 is fixedly connected between the square rod 2103 and the rotating sleeve 2106 to reset the square rod 2103 and at the same time provide a concession space for the insertion of the cross bar 2101 and the vertical bar 2102, ensuring the smooth assembly of the cross bar 2101 and the vertical bar 2102.

[0036] Conical gears 2108 are fixedly connected to the ends of the four rotating sleeves 2106 away from the cross bar 2101 and the vertical bar 2102. The four conical gears 2108 are meshed with each other, so that when one cross bar 2101 rotates, it can drive the other cross bar 2101 and the two vertical bars 2102 to rotate.

[0037] A mesh-shaped scraping rod 12 is fixedly connected to the inner wall of the treatment box 5. The scraping rod 12 is located at the bottom of the screening mechanism 21 and is in contact with the surfaces of the cross bar 2101 and the vertical bar 2102. When the cross bar 2101 and the vertical bar 2102 rotate, the scraping rod 12 can scrape the surfaces of the cross bar 2101 and the vertical bar 2102, preventing the surfaces of the cross bar 2101 and the vertical bar 2102 from being contaminated with feces and causing the feces to solidify and block the pores between the cross bar 2101 and the vertical bar 2102, affecting the subsequent filtration of feces.

[0038] A cleaning mechanism is provided between the upper partition 37 and the lower partition 38, and the cleaning mechanism includes a rotating roller 22 rotatably connected to the inner wall of the processing box 5, and one end of the rotating roller 22 protrudes from the surface of the processing box 5, and a fixed ring sleeve 29 is fixedly connected to the surface of the rotating roller 22, and a fixed sleeve 32 arranged equidistantly is fixedly connected to the surface of the rotating roller 22, and an extrusion rod 30 is slidably connected to the inner wall of the fixed sleeve 32, and the extrusion rod 30 passes through the surface of the fixed ring sleeve 29 and is slidably connected to the inside of the fixed ring sleeve 29, so as to transfer impurities on the screening mechanism 21, and the surface of the extrusion rod 30 is in contact with the arc surface of the lower partition 38 and the surface of the screening mechanism 21, and the end of the extrusion rod 30 away from the rotating roller 22 is spherical, thereby avoiding the extrusion rod 30 and the impurities from being hooked together, which affects the discharge of impurities.

[0039] A first spring 31 is fixedly connected between the extrusion rod 30 and the fixing sleeve 32 for resetting the extrusion rod 30. At the same time, the elastic force of the first spring 31 is used to provide an extrusion force to the extrusion rod 30 to clamp and fix the impurities, so that the impurities can move with the movement of the extrusion rod 30 and the impurities can be discharged smoothly.

[0040] The processing box 5 is internally rotatably connected to a rotating rod 23, one end of which also protrudes from the surface of the processing box 5. The surface of the rotating rod 23 is fixedly connected to sweeping rods 24 that are equidistantly arranged. The sweeping rod 24 is located between two squeezing rods 30, thereby avoiding motion interference between the sweeping rod 24 and the squeezing rod 30. At the same time, through the setting of the sweeping rod 24, impurities stuck on the rotating roller 22 can be removed, thereby ensuring the quality of impurity removal.

[0041] A second motor 14 is fixedly connected to the surface of the processing box 5, and the output end of the second motor 14 is fixedly connected to the end of the rotating roller 22 located outside the processing box 5. The end of the rotating roller 22 located outside the processing box 5 is fixedly connected to the gear 13, and the end of the rotating rod 23 located outside the processing box 5 is also fixedly connected to the gear 13. The two gears 13 are meshed with each other, so that when the rotating roller 22 rotates, it can synchronously drive the rotating rod 23 to rotate.

[0042] The output end of the second motor 14 is fixedly connected to the second pulley 18, and the end of the cross bar 2101 located outside the processing box 5 is also fixedly connected to the second pulley 18. The surfaces of the two second pulleys 18 are transmission-connected with the second belt 17, so that when the second motor 14 is started, it can synchronously drive a cross bar 2101 to rotate, thereby providing power for the operation of the screening mechanism 21.

[0043] The surface of the transfer box 1 is fixedly connected with a liquid storage cylinder 2 for storing medicaments. The surface of the treatment box 5 is fixedly connected with a pump body 4. The input end of the pump body 4 is fixedly connected with a connecting pipe 3. One end of the connecting pipe 3 far away from the pump body 4 penetrates into the interior of the liquid storage cylinder 2 and is fixedly connected with the interior of the liquid storage cylinder 2. The output end of the pump body 4 penetrates into the interior of the treatment box 5 and is fixedly connected with the interior of the treatment box 5. The output end of the pump body 4 is rotatably connected with a T-shaped spraying pipe 28. The inner wall of the spraying pipe 28 at one end inside the output end of the pump body 4 is fixedly connected with a fixing frame 33. The surface of the fixing frame 33 is fixedly connected with a turbine blade 34. Thus, when the pump body 4 injects medicaments into the treatment box 5, the impact of the medicaments on the turbine blade 34 can be utilized to drive the spraying pipe 28 to rotate, thereby driving the spraying pipe 28 to rotate in the treatment box 5, so that the medicaments can be evenly sprayed in the treatment box 5. While flushing the collected sundries, the medicaments can fall into the transfer box 1 below through the treatment box 5 and be mixed with the feces to treat the feces. At the same time, a stirring device driven by a motor can be arranged at the bottom of the device to stir the feces in the transfer box 1, so that the added medicaments can be more evenly mixed with the feces to facilitate the subsequent treatment of the feces. And the stirring mechanism is a conventional technical means, that is, the stirring of the feces is completed by driving a stirring rod to rotate through a motor.

[0044] The inner wall of the treatment box 5 is fixedly connected with a filter screen 25 for holding the discharged impurities. The surface of the spraying pipe 28 is fixedly connected with a rotating shaft 26. The surface of the rotating shaft 26 is fixedly connected with a disturbing rod 27 for disturbing the collected impurities so that the impurities can be comprehensively sprayed with medicaments to remove the feces on the surface of the impurities.

[0045] A box door 7 is arranged on the surface of the treatment box 5 so that the treatment box 5 can be opened to facilitate the subsequent removal of the impurities therein by the staff.

[0046] Working principle: When in use, the fecal mixture is injected into the transfer tank 1 through the injection pipe 6. Then the feces fall into the discharge tank 19. At this time, with the start of the first motor 8, through the transmission of the first pulley 11 and the first belt 9, the two reciprocating lead screws 10 are driven to rotate, and then the pushing block 36 is driven to reciprocate in the chute 35. Thus, the inclined surface of the pushing block 36 squeezes and pushes the surface of the movable plate 15, driving the movable plate 15 to slide upward and compressing the second spring 16. With the upward movement of the movable plate 15, the spraying pipe 28 is started to slide upward in the discharge tank 19, causing a notch to appear at the bottom of the discharge tank 19. Then the feces in the discharge tank 19 are discharged from the notch. Subsequently, after the pushing block 36 is separated from the movable plate 15, under the elastic force of the second spring 16, the blocking block 20 returns to its original state. Thus, during the operation of the device, the blocking block 20 is opened in sequence, enabling the fecal mixture to fall more evenly on the screening mechanism 21, reducing the filtration pressure of the screening mechanism 21 on the fecal liquid, and improving the filtration efficiency of the device for the fecal mixture.

[0047] Meanwhile, with the start of the second motor 14, through the transmission of the second belt 17 and the second pulley 18, the cross bar 2101 is driven to rotate. Thus, through the cooperation of the connecting groove 2104 and the square rod 2103, the third spring 2107 is driven to rotate, and then the bevel gear 2108 is driven to rotate. Through the meshing of the four bevel gears 2108, some cross bars 2101 and vertical bars 2102 are driven to rotate. Thus, the impurities falling on the cross bars 2101 and vertical bars 2102 can be transported under the rotation of the cross bars 2101 and vertical bars 2102, making the impurities approach the rotating roller 22. When the impurities come into contact with the extrusion rod 30, if the impurities are relatively soft impurities such as sanitary napkins, under the extrusion of the extrusion rod 30 and the arc surface of the lower partition plate 38, the fecal mixture absorbed by them can be extruded, reducing the fecal mixture they absorb, facilitating subsequent staff to take them out for treatment. If the impurities are relatively hard impurities such as stones, when the impurities come into contact with the extrusion rod 30, the impurities extrude the extrusion rod 30, causing it to shrink into the fixed sleeve 32 and compressing the first spring 31, enabling the impurities to be embedded on the surface of the fixed ring sleeve 29. Then, with the rotation of the rotating roller 22, the other extrusion rods 30 on the surface of the rotating roller 22 carry the impurities to move. When the impurities are transferred to the notch between the upper partition plate 37 and the lower partition plate 38, at this time, the extrusion rod 30 has space to move outward. Thus, at this time, under the elastic force of the first spring 31, the blocking block 20 pushes the impurities, causing the impurities to fall on the filter screen 25. While the rotating roller 22 is rotating, through the meshing of the two gears 13, the rotating rod 23 rotates synchronously, so that the sweeping rod 24 sweeps the gap between the two extrusion rods 30, preventing impurities from getting stuck on the rotating roller 22 and affecting subsequent operation, ensuring the smooth operation of the device.

[0048] After the impurities fall on the filter screen 25, the medicament in the liquid storage cylinder 2 is suctioned by the pump body 4, so that the medicament is sprayed on the surface of the impurities through the spray pipe 28 to further clean the impurities, facilitating the subsequent removal and cleaning of the impurities. When the medicament is injected into the treatment tank 5, the medicament impacts the turbine blade 34, thereby driving the spray pipe 28 of the device to rotate, making the medicament spraying more uniform. At the same time, the rotating shaft 26 and the disturbing rod 27 are driven to rotate to stir the impurities on the filter screen 25, enabling the impurities to be comprehensively cleaned, improving the cleaning quality of the impurities, reducing the psychological burden of the subsequent staff when cleaning the impurities. At the same time, after the medicament flushes the impurities, the medicament enters the transfer tank 1 through the opening at the bottom of the treatment tank 5 and is mixed with the fecal liquid mixture in the transfer tank 1.

[0049] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A domestic sewage treatment device for municipal water supply and drainage, including a transfer tank (1), characterized in that: A processing box (5) that is fixedly connected to the top of the transfer box (1) and communicates with the inside of the transfer box (1) is provided. An injection pipe (6) in a bent shape is fixedly connected to the top of the processing box (5). The upper end of the injection pipe (6) communicates with the inside of the processing box (5). Upper and lower partitions (37) and (38) are respectively fixedly connected to the upper and lower sides of the inner wall of the processing box (5). The opposite sides of the upper partition (37) and the lower partition (38) are both arc-shaped. A material scattering mechanism is arranged inside the processing box (5). A screening mechanism (21) is arranged on the inner wall of the processing box (5). The screening mechanism (21) is located directly below the material scattering mechanism. A cleaning mechanism is arranged between the upper partition (37) and the lower partition (38). A filter screen (25) is fixedly connected to the inner wall of the processing box (5). A box door (7) is arranged on the surface of the processing box (5). The screening mechanism (21) is located directly below the material scattering mechanism. The screening mechanism (21) includes multiple cross bars (2101) and vertical bars (2102). One cross bar (2101) penetrates the surface of the processing box (5) and is rotatably connected to the inside of the processing box (5). The cross bars (2101) and the vertical bars (2102) in contact with the inner wall of the processing box (5) are both rotatably connected to the inner wall of the processing box (5). A cross connection pipe (2105) is arranged between the cross bars (2101) and the vertical bars (2102). Rotating sleeves (2106) are rotatably connected to the inner walls of the four inner cavities of the cross connection pipe (2105). Square rods (2103) are slidably connected to the inside of the rotating sleeves (2106). Connection grooves (2104) matching the square rods (2103) are opened at both ends of the cross bar (2101). A third spring (2107) is fixedly connected between the square rod (2103) and the rotating sleeve (2106). Conical gears (2108) are fixedly connected to the ends of the four rotating sleeves (2106) away from the cross bars (2101) and the vertical bars (2102). The four conical gears (2108) are meshed with each other. The material scattering mechanism includes a discharge box (19) fixedly connected to the inner wall of the processing box (5). Blocking blocks (20) arranged at equal intervals are slidably connected to the inner wall of the discharge box (19). The cross section of the blocking block (20) is diamond-shaped. The lower part of the discharge box (19) is open. Chutes (35) are opened on both sides of the discharge box (19). Movable plates (15) are fixedly connected to both sides of the blocking block (20). The surface of the movable plate (15) is slidably connected to the inside of the discharge box (19). The movable plate (15) penetrates into the inside of the chute (35). A second spring (16) is fixedly connected to the surface of the movable plate (15). The end of the second spring (16) away from the movable plate (15) is fixedly connected to the inner wall of the chute (35). The surface of the processing box (5) is fixedly connected to a first motor (8); the interior of the processing box (5) is rotatably connected to two reciprocating screws (10) both protruding from the surface of the processing box (5); the surfaces of the two reciprocating screws (10) located inside the processing box (5) are rotatably connected to the two sides of the discharge box (19) and the two reciprocating screws (10) are respectively inserted into the slide grooves (35) on the two sides of the discharge box (19); one end of the two reciprocating screws (10) protruding from the surface of the processing box (5) is fixedly connected to a first pulley (11); the output end of the first motor (8) is also fixedly connected to the first pulley (11); the surfaces of the three first pulleys (11) are transmission-connected to a first belt (9); The surfaces of the two reciprocating screw rods (10) are sleeved with a push block (36), the upper side of the push block (36) is tapered, the surface of the push block (36) is slidably connected to the inner wall of the slide groove (35), and the interior of the push block (36) is provided with a screw rod sleeve matching the reciprocating screw rod (10).

2. The domestic sewage treatment equipment for municipal water supply and drainage according to claim 1, characterized in that: A mesh-shaped scraper rod (12) is fixedly connected to the inner wall of the processing box (5); the scraper rod (12) is located at the bottom of the screening mechanism (21) and is in contact with the surfaces of the horizontal rod (2101) and the vertical rod (2102).

3. A domestic sewage treatment device for municipal water supply and drainage according to claim 1, characterized in that: The cleaning mechanism comprises a rotating roller (22) rotatably connected to the inner wall of the processing box (5), one end of the rotating roller (22) protrudes from the surface of the processing box (5), the surface of the rotating roller (22) is fixedly connected to a fixing ring sleeve (29), the surface of the rotating roller (22) is fixedly connected to fixing sleeves (32) arranged at equal intervals, the inner wall of the fixing sleeve (32) is slidably connected to an extrusion rod (30), the extrusion rod (30) penetrates the surface of the fixing ring sleeve (29) and is slidably connected to the inside of the fixing ring sleeve (29), the surface of the extrusion rod (30) is in contact with the arc surface of the lower partition (38) and the surface of the screening mechanism (21), the end of the extrusion rod (30) away from the rotating roller (22) is spherical, and a first spring (31) is fixedly connected between the extrusion rod (30) and the fixing sleeve (32).

4. A domestic sewage treatment device for municipal water supply and drainage according to claim 3, characterized in that: A rotating rod (23) is rotatably connected inside the processing box (5), one end of the rotating rod (23) also protrudes from the surface of the processing box (5), and the surface of the rotating rod (23) is fixedly connected to sweeping rods (24) arranged at equal distances, and the sweeping rods (24) are located between the two extrusion rods (30).

5. A domestic sewage treatment device for municipal water supply and drainage, characterized in that: A second motor (14) is fixedly connected to the surface of the processing box (5); an output end of the second motor (14) is fixedly connected to an end of a rotating roller (22) located outside the processing box (5); an end of the rotating roller (22) located outside the processing box (5) is fixedly connected to a gear (13); an end of the rotating rod (23) located outside the processing box (5) is also fixedly connected to a gear (13); and the two gears (13) are meshed and connected with each other.

6. The domestic sewage treatment equipment for municipal water supply and drainage according to claim 5, characterized in that: The output end of the second motor (14) is fixedly connected with a second pulley (18). One end of the cross bar (2101) located outside the processing box (5) is also fixedly connected with a second pulley (18). The surfaces of the two second pulleys (18) are drivingly connected with a second belt (17).

7. The domestic sewage treatment equipment for municipal water supply and drainage according to claim 6, characterized in that: A liquid storage cylinder (2) is fixedly connected to the surface of the transfer box (1). A pump body (4) is fixedly connected to the surface of the processing box (5). The input end of the pump body (4) is fixedly connected with a connecting pipe (3). One end of the connecting pipe (3) far away from the pump body (4) penetrates into the interior of the liquid storage cylinder (2) and is fixedly connected to the interior of the liquid storage cylinder (2). The output end of the pump body (4) penetrates into the interior of the processing box (5) and is fixedly connected to the interior of the processing box (5). The output end of the pump body (4) is rotatably connected with a T-shaped spraying pipe (28). A fixing frame (33) is fixedly connected to the inner wall of one end of the spraying pipe (28) located inside the output end of the pump body (4). A turbine blade (34) is fixedly connected to the surface of the fixing frame (33). A rotating shaft (26) is fixedly connected to the surface of the spraying pipe (28). A disturbing rod (27) is fixedly connected to the surface of the rotating shaft (26).

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