CN113144697A - Municipal sewage treatment device - Google Patents

Abstract

The utility model relates to a municipal administration sewage treatment plant, it includes the sewage collecting box, the sewage import has been seted up at sewage collecting box top, the sewage collecting box includes intake antrum and filter chamber, intake antrum and filter chamber intercommunication, the intake antrum is located the filter chamber top, the sewage import sets up at the intake antrum top, be equipped with the broken subassembly that is used for smashing impurity on the intake antrum, be equipped with the shearing subassembly that is used for cutting solid impurity in the filter chamber, be equipped with the filter in the filter chamber, a plurality of filtration pores have been seted up on the filter, the outlet has been seted up on the sewage treatment case lateral wall, the outlet setting is close to bottom of the case one side at the filter, outlet one side intercommunication has the sewage treatment case, be provided with the stirring subassembly in the sewage treatment case. This application has the effect that improves the treatment effeciency and the purifying effect of sewage.

Description

Municipal sewage treatment device

Technical Field

The application relates to the field of sewage treatment devices, in particular to a municipal sewage treatment device.

Background

With the development of society and the progress of economy, municipal buildings are increasing, and the demand of cities for environmental quality is also increasing. A large amount of sewage can be generated in daily municipal work, the sewage treatment refers to a process of purifying the sewage by making the sewage reach the water quality requirement of discharging the sewage into a certain water body or reusing the sewage, and along with the continuous improvement of the urban demand for the environment quality, the sewage treatment requirement is also particularly important.

In the related art, referring to fig. 1, the sewage treatment system comprises a sewage treatment tank 4, wherein a water inlet 41 is formed in the top of the sewage treatment tank 4, a feeding port 42 is further formed in the sewage treatment tank 4, and a recovery port 43 is formed in the bottom of the sewage treatment tank 4.

In view of the above-mentioned related art, the inventor believes that the sewage often contains solid impurities, which are inconvenient to clean, resulting in low sewage treatment efficiency and poor sewage purification effect.

Disclosure of Invention

In order to improve the treatment effeciency and the purifying effect of sewage, this application provides a municipal administration sewage treatment plant.

The application provides a municipal administration sewage treatment plant adopts following technical scheme:

the utility model provides a municipal administration sewage treatment plant, includes the sewage collecting box, the sewage import has been seted up at sewage collecting box top, the sewage collecting box includes intake antrum and filter chamber, the intake antrum with the filter chamber intercommunication, the intake antrum is located the filter chamber top, the sewage import sets up at the intake antrum top, be equipped with the broken subassembly that is used for smashing impurity on the intake antrum, be equipped with the shearing subassembly that is used for cutting solid impurity in the filter chamber, be equipped with the filter in the filter chamber, a plurality of filtration pores have been seted up on the filter, the outlet has been seted up on the sewage treatment case lateral wall, the outlet sets up and is close to bottom of the case one side at the filter, outlet one side intercommunication has the sewage treatment case, be provided with the stirring subassembly.

Through adopting above-mentioned technical scheme, sewage enters into the sewage treatment incasement from the sewage import, earlier through the intake antrum, the crushing unit of the intracavity of intaking carries out crushing treatment to the solid impurity in the sewage, the solid impurity after preliminary crushing falls to the filter chamber along with sewage, cut once more through shearing unit in the filter chamber, with solid impurity fragmentation as far as possible, later on along with sewage drops to the filter, bold solid impurity stays on the filter, can purify tiny fragment along with sewage drop to sewage treatment bottom of the case portion from the outlet entering into the sewage treatment incasement, put in mouthful and add the sewage treatment agent, accomplish the processing after stirring through the stirring subassembly again.

Optionally, the crushing assembly comprises a first toothed ring rotatably connected to the inner wall of the water inlet cavity, a first crushing blade fixedly connected to the inner wall of the first toothed ring, a second toothed ring rotatably connected to the inner wall of the water inlet cavity, a second crushing blade fixedly connected to the inner wall of the second toothed ring, a driving motor fixedly connected to the outer wall of the sewage collecting box, and a bevel gear connected to the output end of the driving motor, wherein the bevel gear is located between the first toothed ring and the second toothed ring, is meshed with the first toothed ring, and is meshed with the second toothed ring, a plurality of first crushing blades are uniformly arranged along the circumferential direction of the first toothed ring, a plurality of second crushing blades are uniformly arranged along the circumferential direction of the second toothed ring, and the first crushing blades and the second crushing blades are oppositely arranged.

Through adopting above-mentioned technical scheme, driving motor work drives the bevel gear and rotates, and bevel gear drives the first ring gear that is located both sides about and second ring gear respectively and rotates to opposite direction, and when first ring gear rotated with the second ring gear, first broken blade rotated to opposite direction with the broken blade of second to carry out broken shearing to the solid impurity through first ring gear and second ring gear center.

Optionally, a mounting groove is formed in the inner wall of the water inlet cavity, the bevel gear is rotatably connected in the mounting groove, a first guide groove is formed in the inner wall of the mounting groove, the first tooth ring is provided with a first fixing ring fixedly connected to one side of the second tooth ring, the first fixing ring is rotatably connected in the first guide groove, a second guide groove is formed in the mounting groove, the second tooth ring is provided with a second fixing ring fixedly connected to one side of the first tooth ring, and the second fixing ring is rotatably connected in the second guide groove.

Through adopting above-mentioned technical scheme, first solid fixed ring is at first guide way internal rotation, plays support and limiting displacement to the rotation of first ring gear in the intracavity of intaking, and the solid fixed ring of second plays support and limiting displacement to the rotation of second ring gear in the intracavity of intaking at the second guide way internal rotation.

It is optional, the shearing module is including rotating two pivots of connection on the filter chamber inner wall, fixed connection at the epaxial cutting blade of commentaries on classics, connect the rotation motor at one of them pivot tip, two epaxial cutting blade is crisscross and sets up in pairs, cutting blade evenly is provided with a plurality ofly along the pivot circumferencial direction, cutting blade is provided with a plurality ofly along pivot length direction, the rotation motor is located the sewage collecting box outside, two the pivot extends to the fixed cover of sewage collecting box outside one end and is equipped with the sprocket, two the cover is equipped with the chain on the sprocket, the shearing module is located the intake antrum below.

Through adopting above-mentioned technical scheme, when rotating motor during operation, drive one of them pivot and rotate, through the cooperation of sprocket and chain, drive another pivot syntropy and rotate thereupon, two epaxial a pair of cutting blade of changeing are mutually supported and are carried out the secondary cutting to the impurity in the sewage of whereabouts to improve solid impurity's percentage of damage, further improve the purifying effect of sewage.

Optionally, be equipped with the mounting panel in the filter chamber, be equipped with the clean subassembly that is used for clean filter on the mounting panel, clean subassembly includes fixed mounting first motor on the mounting panel, connects at the actuating lever of first motor output, articulates the pendulum rod on the sewage collecting box lateral wall, articulates at the connecting rod of pendulum rod tip, with connecting rod normal running fit's drive block and the clean brush of fixed connection in the drive block below, the kidney slot has been seted up on the pendulum rod, the actuating lever deviates from first motor one end fixedly connected with slider, slider sliding connection is in the kidney slot, the clean brush both ends difference sliding connection is on two relative lateral walls of filter chamber.

Through adopting above-mentioned technical scheme, first motor work drives the actuating lever and rotates, and the slider on the actuating lever swings at the kidney-shaped inslot to drive the pendulum rod swing, pendulum rod tip drive connecting rod drive the drive block and remove, because sliding fit between two relative inner walls of cleaning brush lateral wall and filter chamber, the event plays spacing effect to the removal of cleaning brush, thereby makes the connecting rod drive the drive block and further drives the cleaning brush and be reciprocating motion along the equidirectional on the filter, cleans the filter.

Optionally, a cleaning opening is formed in one side, located on the cleaning brush, of the side wall of the sewage collecting box, and a cover plate is detachably connected to the cleaning opening.

Through adopting above-mentioned technical scheme, when impurity was too much on the filter, the solid impurity of cleaning brush on with the filter brushed clean mouthful one side, opened the apron, and the staff can be followed clean mouthful and cleaned the solid impurity that can not pass through the filter.

Optionally, the diameter of the filter hole is gradually reduced from the position close to the sewage inlet to the position far away from the sewage inlet.

Through adopting above-mentioned technical scheme, the change of filtering the hole diameter can reduce the possibility of filtering the hole jam, further improves filtration rate to improve the processing and the purification rate of sewage.

Optionally, be located filter below sliding connection in the filter chamber and prevent stifled frame, prevent stifled frame lateral wall and filter chamber inner wall sliding conflict, prevent stifled frame top fixedly connected with and the less end grafting complex of filtration pore diameter and prevent stifled ejector pad, be equipped with the drive in the filter chamber and prevent stifled gliding adjusting part of frame edge vertical direction, adjusting part is including fixing the second motor at the filter top, connecting lead screw and the nut piece of threaded connection on the lead screw at second motor output, the nut piece with prevent stifled frame fixed connection.

Through adopting above-mentioned technical scheme, after sewage filters, second motor work drives the lead screw and rotates, and the nut piece on the lead screw drives along lead screw length direction and prevents stifled frame rebound, and in the filter was received to stifled ejector pad plug-in, the solid impurity who blocks in the filter pushed away the filter top, and convenient clean subassembly is clean.

Optionally, the stirring assembly comprises a stirring motor positioned at the top of the sewage treatment tank, a stirring shaft connected below the stirring motor, and a stirring blade fixedly connected to the stirring shaft.

Through adopting above-mentioned technical scheme, in sewage that passes through preliminary treatment entered into the sewage treatment case, added sewage treatment agent after, agitator motor work drove the (mixing) shaft and stirring vane rotates, stirs sewage and sewage treatment agent, with higher speed sewage treatment speed.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the crushing assembly and the shearing assembly, solid impurities in the sewage can be crushed and sheared, solid particles with higher crushing degree can enter the sewage treatment box along with the sewage to be treated, large solid substances are still screened from the sewage after crushing, and the influence of the large solid substances on the sewage treatment effect is avoided;

2. through preventing stifled frame and the setting of preventing stifled ejector pad, can be before clean filter top, push away the filter top with the solid impurity that the jam is in the filter hole earlier, convenient cleanness.

Drawings

FIG. 1 is a schematic sectional view showing a sewage treatment tank in the related art.

FIG. 2 is a schematic view of the overall structure of the municipal sewage treatment plant according to the embodiment of the present application.

FIG. 3 is a schematic sectional view of a municipal sewage treatment apparatus according to an embodiment of the present application.

Fig. 4 is an enlarged view at a in fig. 3.

FIG. 5 is a schematic view of the structure at the shear assembly in an embodiment of the present application.

FIG. 6 is a schematic view of the structure of the cleaning assembly in the sewage collecting tank according to the embodiment of the present application.

Description of reference numerals: 1. a sewage collecting tank; 11. a sewage inlet; 13. a water outlet; 131. a water pump; 14. a water inlet cavity; 141. mounting grooves; 142. a first guide groove; 143. a second guide groove; 15. a filter chamber; 151. mounting a plate; 16. a filter plate; 161. a filtration pore; 17. cleaning the mouth; 171. a cover plate; 2. a crushing assembly; 21. a first ring gear; 22. a first crushing blade; 23. a second ring gear; 24. a second crushing blade; 25. a drive motor; 26. a bevel gear; 211. a first retaining ring; 212. a second retaining ring; 3. a shear assembly; 31. a rotating shaft; 32. a cutting blade; 33. rotating the motor; 311. a sprocket; 312. a chain; 4. a sewage treatment tank; 41. a water inlet; 42. a throwing port; 43. a recovery port; 44. a valve; 5. a stirring assembly; 51. a stirring motor; 52. a stirring shaft; 53. a stirring blade; 61. a first motor; 62. a drive rod; 63. a swing rod; 64. a connecting rod; 65. a drive block; 66. a cleaning brush; 621. a slider; 631. a kidney-shaped groove; 7. an anti-blocking frame; 71. an anti-blocking push block; 8. an adjustment assembly; 81. a second motor; 82. a screw rod; 83. a nut block.

Detailed Description

The present application is described in further detail below with reference to figures 2-6.

The embodiment of the application discloses municipal sewage treatment plant. Referring to fig. 2 and 3, municipal administration sewage treatment plant includes sewage collection box 1, sewage import 11 has been seted up at sewage collection box 1 top, top-down is equipped with the broken subassembly 2 that is used for smashing impurity in proper order in sewage collection box 1 and is used for the shearing subassembly 3 of broken solid impurity once more, shearing subassembly 3 below is provided with filter 16, outlet 13 has been seted up to sewage collection box 1 bottom, the outlet 13 other end is connected with sewage treatment box 4, be provided with the stirring subassembly 5 that is used for the stirring on sewage treatment box 4, sewage gets into from sewage import 11, after broken subassembly 2 and shearing subassembly 3 in proper order, filter through filter 16, less solid particle carries out purification treatment along with sewage gets into in sewage treatment box 4.

Referring to fig. 3, the sewage treatment tank 4 comprises a water inlet cavity 14 and a filter cavity 15 from top to bottom, the water inlet cavity 14 is communicated with the filter cavity 15, the water inlet cavity 14 is communicated with the sewage inlet 11, the outer wall of the sewage treatment tank 4 where the water inlet cavity 14 is located is in a cylindrical shape, the outer wall of the sewage treatment tank 4 where the filter cavity 15 is located is in a square shape, and the cross-sectional area of the water inlet cavity 14 is smaller than that of the filter cavity 15.

Referring to fig. 3 and 4, the crushing assembly 2 is located in the water inlet cavity 14, and the crushing assembly 2 comprises a first toothed ring 21 rotatably connected to the inner wall of the water inlet cavity 14, a first crushing blade 22 fixedly connected to the inner wall of the first toothed ring 21, a second toothed ring 23 rotatably connected to the inner wall of the water inlet cavity 14, a second crushing blade 24 fixedly connected to the inner wall of the second toothed ring 23, a driving motor 25 fixedly connected to the outer wall of the sewage collection tank 1, and a bevel gear 26 connected to the output end of the driving motor 25.

The first crushing blades 22 are uniformly arranged in four along the circumferential direction of the first toothed ring 21, the second crushing blades 24 are uniformly arranged in four along the circumferential direction of the second toothed ring 23, and the cutting edges of the first crushing blades 22 and the second crushing blades 24 are arranged oppositely.

Referring to fig. 3 and 4, a mounting groove 141 is formed in the inner wall of the water inlet cavity 14, the mounting groove 141 is an annular groove, a first guide groove 142 and a second guide groove 143 are formed in the inner wall of the mounting groove 141, the first guide groove 142 and the second guide groove 143 are annular grooves, the first guide groove 142 is located above the bevel gear 26, the second guide groove 143 is located below the bevel gear 26, the bevel gear 26 is rotatably connected in the mounting groove 141, the driving motor 25 is fixed on the outer wall of the sewage collection tank 1 through a support, and a motor shaft of the output motor penetrates through the side wall of the sewage collection tank 1 and extends into the mounting groove 141.

First ring gear 21 is located bevel gear 26 top and meshes with bevel gear 26, second ring gear 23 is located bevel gear 26 below and meshes with bevel gear 26, first ring gear 21 deviates from the first solid fixed ring 211 of the fixed welding in one side of second ring gear 23, first solid fixed ring 211 rotates and connects in first guide way 142, second ring gear 23 deviates from the fixed welding in second ring gear 23 one side and has the solid fixed ring 212 of second, the solid fixed ring 212 of second rotates and connects in second guide way 143.

Referring to fig. 2, the sewage collecting tank 1 can be divided into two shells along the vertical direction, that is, the sewage collecting tank 1 is formed by welding two symmetrical shells, which is convenient for the installation of the crushing assembly 2.

Referring to fig. 3 and 4, the sewage passes through the water inlet chamber 14 and needs to pass through the centers of the first toothed ring 21 and the second toothed ring 23, at this time, the driving motor 25 operates to drive the bevel gear 26 to rotate, and the bevel gear 26 drives the first toothed ring 21 and the second toothed ring 23 to rotate in opposite directions, so that the first crushing blade 22 and the second crushing blade 24 shear the solid impurities passing through the first toothed ring 21 and the second toothed ring 23, and the solid impurities of the sewage are crushed into smaller particles.

Referring to fig. 3 and 5, the shearing assembly 3 includes two rotating shafts 31 rotatably connected to the inner wall of the filtering cavity 15, a cutting blade 32 fixedly connected to the rotating shafts 31, and a rotating motor 33 connected to the end of one of the rotating shafts 31, wherein the same ends of the two rotating shafts 31 all extend to the outside of the sewage collecting tank 1, and the two rotating shafts 31 are coaxially fixed with a chain wheel 311, and the two chain wheels 311 are sleeved with a chain 312.

Cutting blade 32 in same pivot 31 evenly is provided with threely along pivot 31 circumferencial direction, and cutting blade 32 is provided with a plurality ofly along pivot 31 length direction, and cutting blade 32 is the setting of curved sword form, and the crisscross setting of cutting blade 32 in two pivots 31, and two liang of pairwise settings of cutting blade 32 of relative position on two pivots 31.

Referring to fig. 3 and 5, the two rotating shafts 31 are respectively located at two sides below the water inlet cavity 14, the cutting blades 32 which are close to each other on the two rotating shafts 31 are located right below the water inlet cavity 14, and after the sewage leaves from the crushing assembly 2, the sewage is cut again through the pairs of cutting blades 32, so that solid impurities in the sewage are crushed again, and the sewage purification effect is improved.

Referring to fig. 3 and 6, filter 16 fixed connection just is located the below of shearing subassembly 3 in filter chamber 15, has seted up a plurality of filtration pores 161 on the filter 16, and filtration pore 161 diameter reduces gradually from being close to sewage import 11 one end to deviating from sewage import 11 one end, and the sewage that has impurity filters through filtration pores 161, and great solid particle remains in the filter 16 top, and less solid particle falls to filter chamber 15 below along with sewage.

Referring to fig. 3, a water pump 131 is installed on the water outlet 13, the water pump 131 pumps sewage falling below the filter chamber 15 into the sewage treatment tank 4, a feeding opening 42 is formed in the side wall of the sewage treatment tank 4 and used for feeding a sewage treatment agent, and a stirring assembly 5 is arranged in the sewage treatment tank 4 and used for uniformly stirring the sewage treatment agent and the sewage.

Referring to fig. 3, the stirring assembly 5 includes a stirring motor 51 fixedly connected to the top of the sewage treatment tank 4, a stirring shaft 52 connected below the stirring motor 51, and a plurality of stirring blades 53 fixedly connected to the stirring shaft 52, wherein the plurality of stirring blades 53 are arranged along the circumferential direction of the stirring shaft 52, and the plurality of groups are arranged along the length direction of the stirring shaft 52.

Referring to fig. 3, a recycling port 43 is formed in the sidewall of the sewage treatment tank 4, a valve 44 is disposed on the recycling port 43, and the valve 44 is opened after sewage treatment, so that sewage can be recycled through the recycling port 43.

Referring to fig. 3 and 6, be located filter 16 below sliding connection and prevent stifled frame 7 in filter chamber 15, first spacing groove has been seted up on 1 lateral wall of sewage collecting box, first spacing groove sets up along filter chamber 15 direction of height, prevent stifled frame 7 go up fixedly connected with and first spacing groove sliding fit's first stopper, prevent stifled frame 7 lateral wall and filter chamber 15 lateral wall sliding conflict, prevent stifled 7 top fixedly connected with a plurality ofly and filter hole 161 grafting complex prevent stifled ejector pad 71, prevent stifled ejector pad 71 diameter and filter hole 161 minimum diameter phase-match.

Referring to fig. 3, the filter chamber is internally provided with an adjusting assembly 8 for driving the anti-blocking frame 7 to move along the vertical direction, the adjusting assembly 8 comprises a second motor 81 fixed on the top of the filter plate 16, a screw rod 82 connected at the output end of the second motor 81 and a nut block 83 screwed on the screw rod 82, the nut block 83 is fixedly welded with the anti-blocking frame 7, and the second motor 81 is a waterproof motor.

After sewage filtration, the second motor 81 works to drive the lead screw 82 to rotate, under the limiting action of the first limiting block and the first limiting groove, the nut block 83 drives the anti-blocking frame 7 to approach the filter plate 16 along the vertical direction until a plurality of anti-blocking push blocks 71 are completely in plug-in fit with the plurality of filter holes 161, and solid impurities participating in the filter holes 161 are pushed to the top of the filter plate 16.

Referring to fig. 3 and 6, the mounting plate 151 is fixedly welded at the top of the filter plate 16 on the inner wall of the filter cavity 15, a cleaning component for cleaning the filter plate 16 is arranged on the mounting plate 151, the cleaning component comprises a first motor 61 fixedly mounted on the mounting plate 151, a driving rod 62 connected to the output end of the first motor 61, a swing rod 63 hinged to the side wall of the sewage collecting tank 1, a connecting rod 64 hinged to the end of the swing rod 63, a driving block 65 in rotary fit with the connecting rod 64 and a cleaning brush 66 fixedly connected below the driving block 65, a waist-shaped groove 631 is formed in the swing rod 63, the waist-shaped groove 631 is arranged along the length direction of the swing rod 63, the driving rod 62 deviates from one end of the first motor 61 and is integrally formed with a sliding block 621, the sliding block 621 is slidably connected in the waist-shaped groove 631, and the first motor 61 is a waterproof motor.

Referring to fig. 3 and 6, two opposite side walls of the filter cavity 15 are provided with second limiting grooves, and two ends of the cleaning brush 66 in the length direction are fixedly connected with second limiting blocks in sliding fit with the two second limiting grooves respectively.

Referring to fig. 3 and 6, after anti-blocking pusher 71 is inserted in filtering hole 161, first motor 61 works and drives actuating lever 62 and rotate, slider 621 on the actuating lever 62 slides in kidney slot 631, thereby drive pendulum rod 63 and rotate around the pin joint, further drive connecting rod 64 and drive driving block 65 and remove, under the spacing cooperation of second spacing groove and second stopper, driving block 65 drives cleaning brush 66 and removes along the spacing groove length direction of second, thereby make cleaning brush 66 clean the solid impurity on the filter 16.

Referring to fig. 3, the side wall of the sewage collection box 1 is provided with a cleaning opening 17 on one side of the cleaning brush 66, the cleaning opening 17 is detachably connected with a cover plate 171, the cover plate 171 is mounted on the side wall of the sewage collection box 1 through a bolt, the cleaning brush 66 cleans the solid impurities on the top of the filter plate 16 to one side of the cleaning opening 17, and a worker can detach the cover plate 171 to clean the solid impurities in the cleaning opening 17.

The embodiment of the application provides a municipal wastewater treatment device's implementation principle does: in sewage with impurity enters into intake antrum 14 from sewage import 11, passes through from first ring gear 21 and second ring gear 23 center, and first ring gear 21 and second ring gear 23 rotate to opposite direction this moment to drive first broken blade 22 and second broken blade 24 and carry out the breakage to the solid impurity in the sewage that passes through, impurity after preliminary breakage continues to fall along with sewage, through many pairs of rotating cutting blade 32, carries out the secondary cutting through cutting blade 32. Then, after the smaller solid particles pass through the filter plate 16 as the sewage descends, they enter the sewage treatment tank 4 through the water discharge port 13, and the larger solid particles remain on the top of the filter plate 16.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a municipal administration sewage treatment plant which characterized in that: comprises a sewage collecting box (1), a sewage inlet (11) is arranged at the top of the sewage collecting box (1), the sewage collecting box (1) comprises a water inlet cavity (14) and a filter cavity (15), the water inlet cavity (14) is communicated with the filter cavity (15), the water inlet cavity (14) is positioned above the filter cavity (15), the sewage inlet (11) is arranged at the top of the water inlet cavity (14), a crushing component (2) for crushing impurities is arranged on the water inlet cavity (14), a shearing component (3) for cutting solid impurities is arranged in the filter cavity (15), a filter plate (16) is arranged in the filter cavity (15), a plurality of filter holes (161) are arranged on the filter plate (16), a water outlet (13) is arranged on the side wall of the sewage treatment box, and the water outlet (13) is arranged at one side of the bottom of the filter plate (16), one side of the water outlet (13) is communicated with a sewage treatment box (4), and a stirring component (5) is arranged in the sewage treatment box (4).

2. The municipal sewage treatment apparatus of claim 1, wherein: the crushing assembly (2) comprises a first toothed ring (21) rotatably connected to the inner wall of the water inlet cavity (14), a first crushing blade (22) fixedly connected to the inner wall of the first toothed ring (21), a second toothed ring (23) rotatably connected to the inner wall of the water inlet cavity (14), a second crushing blade (24) fixedly connected to the inner wall of the second toothed ring (23), a driving motor (25) fixedly connected to the outer wall of the sewage collection box (1), and a bevel gear (26) connected to the output end of the driving motor (25), wherein the bevel gear (26) is positioned between the first toothed ring (21) and the second toothed ring (23), the bevel gear (26) is meshed with the first toothed ring (21), the bevel gear (26) is meshed with the second toothed ring (23), and a plurality of the first crushing blades (22) are uniformly arranged along the circumferential direction of the first toothed ring (21), the second crushing blades (24) are uniformly arranged along the circumferential direction of the second toothed ring (23), and the first crushing blades (22) are opposite to the second crushing blades (24).

3. The municipal sewage treatment apparatus of claim 2, wherein: the utility model discloses a bearing support of a motor vehicle, including intake antrum (14), bevel gear (26), first fixed ring (211) of second ring gear (23) one side fixedly connected with are seted up on the intake antrum (14) inner wall, bevel gear (26) rotate to be connected in mounting groove (141), first guide way (142) have been seted up on mounting groove (141) inner wall, deviate from first fixed ring (211) of second ring gear (23) one side fixedly connected with on first ring gear (21), first fixed ring (211) rotate to be connected in first guide way (142), second guide way (143) have been seted up on mounting groove (141), deviate from first ring gear (21) one side fixedly connected with second fixed ring (212) on second ring gear (23), second fixed ring (212) rotate to be connected in second guide way (143).

4. The municipal sewage treatment apparatus of claim 1, wherein: the shearing assembly (3) comprises two rotating shafts (31) which are rotatably connected to the inner wall of the filter cavity (15), cutting blades (32) which are fixedly connected to the rotating shafts (31), and a rotating motor (33) which is connected to the end part of one rotating shaft (31), wherein the cutting blades (32) on the two rotating shafts (31) are staggered and arranged in pairs, a plurality of cutting blades (32) are uniformly arranged along the circumferential direction of the rotating shaft (31), a plurality of cutting blades (32) are arranged along the length direction of the rotating shaft (31), the rotary motor (33) is located outside the sewage collection box (1), two the rotary shaft (31) extends to the fixed cover of one end outside the sewage collection box (1) and is provided with a chain wheel (311), two the chain wheel (311) is sleeved with a chain (312), and the shearing assembly (3) is located below the water inlet cavity (14).

5. The municipal sewage treatment apparatus of claim 1, wherein: a mounting plate (151) is arranged in the filter cavity (15), a cleaning component for cleaning the filter plate (16) is arranged on the mounting plate (151), the cleaning component comprises a first motor (61) fixedly arranged on the mounting plate (151), a driving rod (62) connected with the output end of the first motor (61), a swing rod (63) hinged on the side wall of the sewage collecting box (1), a connecting rod (64) hinged at the end part of the swing rod (63), a driving block (65) in rotary fit with the connecting rod (64) and a cleaning brush (66) fixedly connected below the driving block (65), a kidney-shaped groove (631) is arranged on the swing rod (63), a sliding block (621) is fixedly connected at one end of the driving rod (62) departing from the first motor (61), the sliding block (621) is connected in the kidney-shaped groove (631) in a sliding manner, and two ends of the cleaning brush (66) are respectively connected on two opposite side walls of the filter cavity (15) in a sliding manner.

6. The municipal sewage treatment apparatus of claim 5, wherein: a cleaning opening (17) is formed in one side, located on the cleaning brush (66), of the side wall of the sewage collecting box (1), and a cover plate (171) is detachably connected to the cleaning opening (17).

7. The municipal sewage treatment apparatus of claim 1, wherein: the diameter of the filter hole (161) is gradually reduced from one end close to the sewage inlet (11) to one end far away from the sewage inlet (11).

8. The municipal sewage treatment apparatus of claim 7, wherein: lie in filter (16) below sliding connection in filter (15) and prevent stifled frame (7), prevent stifled frame (7) lateral wall and filter (15) inner wall sliding conflict, prevent stifled frame (7) top fixedly connected with and cross filter hole (161) diameter less end grafting complex prevent stifled ejector pad (71), be equipped with the drive in filter (15) and prevent stifled frame (7) along the gliding adjusting part (8) of vertical direction, adjusting part (8) are including fixing second motor (81), the lead screw (82) of connecting at second motor (81) output and threaded connection nut piece (83) on lead screw (82) at filter (16) top, nut piece (83) with prevent stifled frame (7) fixed connection.

9. The municipal sewage treatment apparatus of claim 1, wherein: the stirring assembly (5) comprises a stirring motor (51) positioned at the top of the sewage treatment tank (4), a stirring shaft (52) connected below the stirring motor (51) and stirring blades (53) fixedly connected to the stirring shaft (52).

Images