CN221181943U - Orifice plate type grid dirt remover with back flushing function - Google Patents

Abstract

The utility model provides an orifice plate type grid dirt separator with a back flushing function, which comprises a dirt separator shell, wherein a driving roller is arranged at the top end of the inner part of the dirt separator shell, a driving roller rotating rod is fixedly connected inside the driving roller, a driving wheel II is fixedly sleeved on the outer side of the driving roller rotating rod inside the dirt separator shell, the right end of the driving roller rotating rod penetrates through the right side wall of the dirt separator shell and is fixedly sleeved with a driving wheel III, a driven roller is arranged at the bottom end of the inner part of the dirt separator shell, orifice plate type grids are movably sleeved on the outer sides of the driven roller and the driving roller, and a positive and negative flushing mechanism is arranged at the bottom of the rear side of the dirt separator shell. The utility model is provided with the positive and negative flushing mechanism, a group of back flushing water pipes can be additionally arranged on the inner side of the pore plate of the grating machine under the condition of not changing the original back flushing water pipes, the front and back flushing spray heads of the pore plate grating are provided with the positive and negative flushing spray heads, the flushing effect is obviously improved, the spray heads are not blocked, and the flushing effect is ensured.

Description

Orifice plate type grid dirt remover with back flushing function

Technical Field

The utility model mainly relates to the technical field of orifice plate type grid dirt removers, in particular to an orifice plate type grid dirt remover with a back flushing function.

Background

The perforated plate type grid dirt separator is a solid-liquid separation device, is mainly used for intercepting and removing impurity particles in the cleaned sewage, and is applied to sewage treatment, solid-liquid separation and sorting procedures in industries such as food, textile, printing and dyeing, papermaking, chemical industry, medicine, wood processing and cultivation.

Through searching, for example, the utility model patent with the publication number of CN205023885U discloses an orifice plate type grid dirt remover, which comprises a frame, wherein two annular chains are arranged in the frame along the vertical direction of the frame, an annular closed inner cavity surrounded by a plurality of orifice plate type grids is arranged between the two annular chains, and sealing strips are arranged between two adjacent orifice plate type grids; all the orifice plate type grids are connected with the annular chain and rotate along with the annular chain; the frame is provided with a driving device which is connected with all the annular chains and drives all the annular chains to synchronously rotate; a backflushing spray set is arranged above the top orifice plate type grille and along the axial direction of the orifice plate type grille, and a slag collecting groove for collecting solid impurities is arranged below the top orifice plate type grille. The method has the advantages of high capture rate, capability of effectively removing more kinds of grid slag, capability of greatly reducing the load of subsequent treatment procedures, particular suitability for MBR membrane treatment process, improvement of operation efficiency and reduction of maintenance times of process equipment.

However, the technical scheme of the patent still has the following defects: 1. the washing effect on the grating is limited, the washing effect is not obvious, and small garbage adhered in the grating cannot be thoroughly removed by single washing, so that the subsequent treatment effect is affected; 2. because the flushing water adopts the water in the grid pool, impurities in the water can cause the blockage of the spray head, the flushing effect is affected, the spray head needs to be cleaned regularly, and inconvenience is brought to staff;

Therefore, there is a need to develop an orifice plate type grille decontamination machine with backwash function to solve the above-mentioned shortcomings.

Disclosure of utility model

The utility model mainly provides an orifice plate type grid dirt remover with a back flushing function, which is used for solving the technical problems in the background technology.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides an orifice plate formula grid scrubbing machine with back flush function, includes the scrubbing machine casing, scrubbing machine casing top fixedly connected with driving motor, driving motor output fixedly connected with transfer line, the fixed cover in transfer line outside is equipped with drive wheel one, the movable cover in drive wheel one outside is equipped with first belt, scrubbing machine casing inside top is equipped with the drive roller, the inside fixedly connected with drive roller bull stick of drive roller, the outside fixed cover that the drive roller bull stick is located scrubbing machine casing inside is equipped with drive wheel two, drive roller bull stick right-hand member runs through scrubbing machine casing right side lateral wall and fixed cover and is equipped with drive wheel three, scrubbing machine casing inside bottom is equipped with the driven voller, driven voller and drive roller outside movable cover are equipped with orifice plate formula grid, be equipped with vibration mechanism between driven voller and the drive roller, scrubbing machine casing rear side bottom is equipped with flushing mechanism.

Further, positive and negative flushing mechanism includes fixed plate fixedly connected with in dirt separator casing rear side bottom, fixed plate top fixedly connected with suction pump, suction pump input fixedly connected with drainage tank, the just filter screen of both sides fixedly connected with about drainage tank, the fluting has been seted up at drainage tank top, the spout has all been seted up to both sides inner wall around the fluting, the inside filter steamer tray that is equipped with of fluting, the inside right side fixedly connected with thin filter screen of filter steamer tray, the equal fixedly connected with slide bar in both sides around the filter steamer tray, filter steamer tray top fixedly connected with baffle, baffle top fixedly connected with portable pole, suction pump output fixedly connected with water pipe, water pipe top fixedly connected with reposition of redundant personnel assembly, both ends are fixedly connected with positive flushing pipe and back flush pipe respectively around the reposition of redundant personnel assembly, positive flushing pipe is located dirt separator casing rear side, back flush pipe runs through and gets into inside the dirt separator casing, positive flushing pipe and back flush pipe opposite side all fixedly connected with shower nozzle that is a plurality of word distribution.

Further, vibration mechanism is including rotating the rotary rod of connecting in the dirt separator casing inside, the rotary rod outside rotates and is connected with a fixed section of thick bamboo, both ends and be located the equal fixedly connected with dead lever of rotary rod about the fixed section of thick bamboo, dead lever and dirt separator casing inner wall fixed connection that both ends set up about the fixed section of thick bamboo pass through, the rotary rod outside just is located the inside fixed cover of fixed section of thick bamboo and is equipped with rotatory roller, rotatory roller surface fixedly connected with stripper plate, the rotary rod outside just is located the fixed cover in fixed section of thick bamboo right side and is equipped with the drive wheel four, the four outside movable cover of drive wheel is equipped with the second belt, fixed barrel rear side fixedly connected with extends the case, spacing spout has all been seted up to the inner wall of extension case left and right sides, extend the inside atress board that is equipped with of case, the equal fixedly connected with spacing slide bar in atress board left and right sides, both ends all fixedly connected with push rod about the push rod outside movable cover is equipped with reset spring, the push rod runs through and extends case rear side lateral wall fixedly connected with vibration board.

Further, the baffle bottom is laminated mutually with the filter tank top, the slide bar that both sides set up around through the filter steamer tray is with the spout sliding connection that both sides inner wall was seted up around the fluting, the input and the fluting inside intercommunication of suction pump.

Further, both ends are all rotated through between bearing and the dirt separator shells inner wall about the rotary rod, the one end movable sleeve that the drive wheel fourth was kept away from to the second belt is located the drive wheel second outside, the one end movable sleeve that the drive wheel first was kept away from to the first belt is located the drive wheel third outside, just the drive roller bull stick left end is rotated through between bearing and the dirt separator shells left side inner wall and is connected, drive roller bull stick and dirt separator shells right side lateral wall run through the department and rotate and be connected.

Further, extend case and the inside intercommunication of fixed section of thick bamboo, atress board front side is laminated mutually with rotatory roller rear side, the spacing slide groove sliding connection that spacing slide bar that the atress board set up through left and right sides and extension case left and right sides inner wall were seted up, just reset spring rear end and extension case rear side inner wall fixed connection, reset spring front end and atress board rear side fixed connection, push rod and extension case rear side lateral wall run through department sliding connection.

Further, the front opening has been seted up to the scrubbing machine casing front side, the back opening has been seted up to scrubbing machine casing rear side, the mouth that drops has been seted up to scrubbing machine casing bottom, scrubbing machine casing rear side top fixedly connected with arranges the feed bin, arrange feed bin bottom fixedly connected with support.

Further, the discharging bin is communicated with the inner part of the dirt separator shell, and the dirt separator shell is obliquely assembled at an angle of 40-50 degrees when assembled.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the vibrating mechanism, the positive flushing pipe and the back flushing pipe are matched, the orifice plate type grille on the back surface is flushed simultaneously by spraying water through the spray heads arranged on the positive flushing pipe and the back flushing pipe, and meanwhile, when the driving motor drives the transmission rod to rotate, the driving roller rotating rod is driven to rotate under the action of the first driving wheel, the first belt and the third driving wheel, so that the driving roller is matched with the driven roller to drive the orifice plate type grille to rotate, and impurities in sewage are cleaned; the driving roller rotating rod can simultaneously drive the driving wheel II to rotate in the rotating process, the rotating roller is driven to rotate under the action of the driving wheel II, the second belt and the driving wheel IV, the pressing plate is used for pressing the stressed plate when the rotating roller rotates, the vibrating plate is synchronously driven to move under the action of the pushing rod when the stressed plate moves, the orifice plate type grille on the back surface is vibrated and beaten, and small garbage on the orifice plate type grille can be effectively cleaned more thoroughly by being matched with the positive flushing pipe and the back flushing pipe, so that the subsequent treatment effect of the dirt remover is ensured.

2. According to the utility model, through the positive and negative flushing mechanism, water is pumped into the diversion assembly through the water supply pipe by starting the water suction pump, the water is diverted through the diversion assembly and is sprayed to the orifice plate type grille on the back surface through the spray heads arranged on the positive flushing pipe and the back flushing pipe to flush the orifice plate type grille on the back surface, and under the condition that the original back flushing pipe is not changed, a group of back flushing pipes are additionally arranged on the inner side of the orifice plate of the grille machine, so that the orifice plate grille has flushing spray heads on the positive and negative surfaces, and the flushing effect is obviously improved; when the suction pump draws water, the water in the sewage pool is filtered through the primary filter screen and then enters the filter drawer, and the fine impurities in the water are filtered out through the fine filter screen and are retained in the filter drawer, so that the spray head is prevented from being blocked when the water is sprayed out through the spray head, the flushing effect is ensured, and the spray head cleaning is not needed by workers regularly, so that the use is convenient.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic illustration of the structure of the forward and reverse flushing mechanism of the present utility model;

FIG. 3 is a schematic diagram of a split structure of the filter tank of the present utility model;

FIG. 4 is a schematic diagram of the internal side view of the dirt separator of the present utility model;

FIG. 5 is a schematic view showing the front view of the inside of the cleaner housing according to the present utility model;

FIG. 6 is a schematic top view of the vibration mechanism of the present utility model;

FIG. 7 is an enlarged view of area A of FIG. 5;

Fig. 8 is an enlarged view of region B in fig. 5.

In the figure: 1. a dirt separator housing; 101. a driving motor; 102. a transmission rod; 103. a first driving wheel; 104. a first belt; 105. a front opening; 106. a rear opening; 107. discharging bin; 108. a bracket; 109. a driving roller; 110. driven roller; 111. an orifice plate type grille; 112. a drive roller rotating rod; 113. a second driving wheel; 114. a transmission wheel III; 115. a drop port; 2. a positive and negative flushing mechanism; 201. a fixing plate; 202. a water pump; 203. a water filtering tank; 204. a primary filter screen; 205. slotting; 206. a chute; 207. a filter drawer; 208. a slide bar; 209. fine filter screen; 210. a baffle; 211. a hand lever; 212. a water supply pipe; 213. a shunt assembly; 214. a positive flush tube; 215. a back flushing pipe; 216. a spray head; 3. a vibration mechanism; 301. a fixed cylinder; 302. a fixed rod; 303. a rotating rod; 304. a driving wheel IV; 305. a second belt; 306. a rotating roller; 307. an extrusion plate; 308. an extension box; 309. limiting sliding grooves; 310. a force-bearing plate; 311. a limit slide bar; 312. a push rod; 313. a return spring; 314. a vibration plate.

Detailed Description

In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.

Referring to fig. 1-8, an orifice plate type grid sewage treatment machine with a back flushing function includes a sewage treatment machine housing 1, a driving motor 101 is fixedly connected to the top of the sewage treatment machine housing 1, an output end of the driving motor 101 is fixedly connected to a driving rod 102, a driving wheel 103 is fixedly sleeved outside the driving rod 102, a first belt 104 is movably sleeved outside the driving wheel 103, a driving roller 109 is arranged at the top end inside the sewage treatment machine housing 1, a driving roller rotating rod 112 is fixedly connected inside the driving roller 109, a driving wheel 113 is fixedly sleeved outside the driving roller rotating rod 112 inside the sewage treatment machine housing 1, a driving wheel three 114 is fixedly sleeved at the right end of the driving roller rotating rod 112, a driven roller 110 is arranged at the bottom inside the sewage treatment machine housing 1, a perforated plate type grid 111 is movably sleeved outside the driven roller 110 and the driving roller 109, a vibration mechanism 3 is arranged between the driven roller 110 and the driving roller 109, and a forward and backward flushing mechanism 2 is arranged at the bottom of the rear side of the sewage treatment machine housing 1.

Wherein the positive and negative flushing mechanism 2 comprises a fixed plate 201 fixedly connected to the bottom of the rear side of the sewage disposal machine shell 1, a water pump 202 is fixedly connected to the top of the fixed plate 201, a water filtering tank 203 is fixedly connected to the input end of the water pump 202, a primary filter screen 204 is fixedly connected to the left side of the water filtering tank 203, a slot 205 is formed in the top of the water filtering tank 203, sliding grooves 206 are formed in the inner walls of the front side and the rear side of the slot 205, a filter drawer 207 is arranged in the slot 205, a fine filter screen 209 is fixedly connected to the right side of the filter drawer 207, slide bars 208 are fixedly connected to the front side and the rear side of the filter drawer 207, a baffle 210 is fixedly connected to the top of the filter drawer 207, a portable rod 211 is fixedly connected to the top of the baffle 210, a water pipe 212 is fixedly connected to the output end of the water pump 202, a diversion assembly 213 is fixedly connected to the top of the water pipe 212, a positive flushing pipe 214 and a back flushing pipe 215 are respectively fixedly connected to the front end and the rear end of the diversion assembly 213, the positive flushing pipe 214 is positioned at the rear side of the sewage disposal machine shell 1, the back flushing pipe 215 penetrates into the sewage disposal machine shell 1, a plurality of spray heads 216 which are distributed in a straight line at equal intervals are fixedly connected to opposite sides of the front flushing pipe 214 and the back flushing pipe 215, the bottom of the baffle 210 is attached to the top of the water filtering tank 203, the filtering drawer 207 is in sliding connection with sliding grooves 206 formed in the inner walls of the front side and the rear side of the grooving 205 through sliding rods 208 arranged on the front side and the rear side, the input end of the water suction pump 202 is communicated with the inside of the grooving 205, the water spraying of the spray heads 216 arranged on the front flushing pipe 214 and the back flushing pipe 215 is carried out on the pore plate type grille 111 on the back surface, simultaneously, when the driving motor 101 drives the transmission rod 102 to rotate, under the action of the transmission wheel I103, the first belt 104 and the transmission wheel III 114, the driving roller rotating rod 112 is driven, so that the driving roller 109 is matched with the driven roller 110 to drive the pore plate type grille 111 to rotate, and impurities in sewage are cleaned, the driving roller rotating rod 112 also drives the driving wheel II 113 to rotate simultaneously in the rotating process, under the action of the driving wheel II 113, the second belt 305 and the driving wheel IV 304, the rotating roller 306 is driven to rotate, the stress plate 310 is extruded through the extrusion plate 307 when the rotating roller 306 rotates, the vibration plate 314 is synchronously driven to move under the action of the push rod 312 when the stress plate 310 moves, the orifice plate type grille 111 on the back surface is vibrated and beaten, and the positive flushing pipe 214 and the back flushing pipe 215 are matched to more thoroughly clean the small garbage on the orifice plate type grille effectively, so that the subsequent treatment effect of the dirt remover is ensured.

Wherein the vibration mechanism 3 comprises a rotary rod 303 rotatably connected to the inside of the cleaner housing 1, a fixed cylinder 301 is rotatably connected to the outer side of the rotary rod 303, fixed rods 302 are fixedly connected to the left and right ends of the fixed cylinder 301 and positioned on the upper and lower sides of the rotary rod 303, the fixed cylinder 301 is fixedly connected with the inner wall of the cleaner housing 1 through the fixed rods 302 arranged at the left and right ends, a rotary roller 306 is fixedly sleeved on the outer side of the rotary rod 303 and positioned in the fixed cylinder 301, a squeezing plate 307 is fixedly connected to the surface of the rotary roller 306, a driving wheel four 304 is fixedly sleeved on the outer side of the rotary rod 303 and positioned on the right side of the fixed cylinder 301, the outside of the driving wheel IV 304 is movably sleeved with a second belt 305, the rear side of the fixed cylinder 301 is fixedly connected with an extension box 308, the inner walls of the left side and the right side of the extension box 308 are provided with limiting sliding grooves 309, a stress plate 310 is arranged in the extension box 308, the left side and the right side of the stress plate 310 are fixedly connected with limiting sliding bars 311, the left side and the right side of the stress plate 310 are fixedly connected with push rods 312, the outer sides of the push rods 312 are movably sleeved with reset springs 313, the push rods 312 penetrate through the side wall of the rear side of the extension box 308 and are fixedly connected with vibrating plates 314, the left side and the right side of the rotating rods 303 are rotatably connected with the inner wall of the dirt remover shell 1 through bearings, One end of the second belt 305 far away from the driving wheel IV 304 is movably sleeved on the outer side of the driving wheel II 113, one end of the first belt 104 far away from the driving wheel I103 is movably sleeved on the outer side of the driving wheel III 114, the left end of the driving roller rotating rod 112 is rotationally connected with the left inner wall of the dirt separator shell 1 through a bearing, the driving roller rotating rod 112 is rotationally connected with the penetrating part of the right side wall of the dirt separator shell 1, the extension box 308 is communicated with the inside of the fixed cylinder 301, the front side of the stress plate 310 is attached to the rear side of the rotating roller 306, the stress plate 310 is in sliding connection with the limit sliding grooves 309 arranged on the left and right inner walls of the extension box 308 through limit sliding rods 311 arranged on the left and right sides, the rear end of the return spring 313 is fixedly connected with the inner wall of the rear side of the extension box 308, the front end of the return spring 313 is fixedly connected with the rear side of the stress plate 310, the push rod 312 is in sliding connection with the penetrating part of the rear side wall of the extension box 308, water is pumped into the diversion assembly 213 through the water supply pipe 212 by starting the water suction pump 202, the water is diverted through the diversion assembly 213 and sprayed to flush the orifice plate type grille 111 on the back surface through the spray nozzles 216 arranged on the front flushing pipe 214 and the back flushing pipe 215 at the same time, a group of back flushing water pipes are additionally arranged on the inner side of the orifice plate of the grille machine under the condition of not changing the original back flushing water pipes, Thus, the orifice plate grating has the flushing nozzles on the front and back sides, the flushing effect is obviously improved, meanwhile, when the water pump 202 pumps water, the water in the sewage pool firstly filters larger impurities through the primary filter screen 204 and then enters the filter drawer 207, and the fine impurities in the water are filtered out through the fine filter screen 209 and are retained in the filter drawer 207, so that the blocking of the nozzle 216 is avoided when the water is sprayed out through the nozzle 216, the flushing effect is ensured, and the cleaning of the nozzle is not needed by workers regularly, thereby bringing convenience to the workers, and when the orifice plate grating dirt remover regularly maintains, the workers can pump the filter drawer 207 out of the slot 205 through the hand lever 211, The fine impurities filtered out are cleaned off, so that the subsequent filtering effect is ensured.

Wherein, front opening 105 has been seted up to the scrubbing machine casing 1 front side, back opening 106 has been seted up to scrubbing machine casing 1 rear side, drop mouth 115 has been seted up to scrubbing machine casing 1 bottom, scrubbing machine casing 1 rear side top fixedly connected with arranges feed bin 107, arrange feed bin 107 bottom fixedly connected with support 108, arrange feed bin 107 and the inside intercommunication of scrubbing machine casing 1, and be 40-50 slant equipment when scrubbing machine casing 1 equipment, through the drop mouth 115 of seting up, the impurity of being washed down can directly fall back to the effluent water sump through drop mouth 115 that scrubbing machine casing 1 bottom was setted up.

The specific operation mode of the utility model is as follows:

Firstly, when the orifice plate type grid dirt remover filters impurities in sewage in a sewage pool, the orifice plate type grid 111 on the back surface is washed simultaneously by spraying water through a spray nozzle 216 arranged on a forward washing pipe 214 and a back washing pipe 215, meanwhile, when a driving motor 101 drives a transmission rod 102 to rotate, under the action of a transmission wheel I103, a first belt 104 and a transmission wheel III 114, a driving roller rotating rod 112 is driven to rotate, so that a driving roller 109 is matched with a driven roller 110 to drive the orifice plate type grid 111 to rotate, the impurities in the sewage are cleaned, and in the rotating process of the driving roller rotating rod 112, a transmission wheel II 113 is driven to rotate simultaneously, a rotating roller 306 is driven to rotate under the action of a transmission wheel II 113, a second belt 305 and a transmission wheel IV 304, a stress plate 310 is extruded by a extruding plate 307 when the rotating roller 306 rotates, and a vibration plate 314 is synchronously driven by a pushing rod 312 to move when the stress plate 310 moves, the orifice plate type grille 111 on the back surface is beaten in a vibrating way, the positive flushing pipe 214 and the back flushing pipe 215 are matched to more thoroughly clean the small garbage on the orifice plate type grille, the subsequent treatment effect of the sewage disposal machine is ensured, the water is pumped into the diversion assembly 213 through the water supply pipe 212 by starting the water suction pump 202, the water is diverted through the diversion assembly 213 and sprayed to flush the orifice plate type grille 111 on the back surface through the spray nozzles 216 arranged on the positive flushing pipe 214 and the back flushing pipe 215, a group of back flushing water pipes are additionally arranged on the inner side of the orifice plate of the grille machine under the condition that the original back flushing water pipes are not changed, so that the flushing effect of the flushing spray nozzles on the front and back surfaces of the orifice plate grille is obviously improved, meanwhile, when the water suction pump 202 pumps water, after filtering larger impurities through the primary filter screen 204, enters the filter drawer 207, and filter out and detain in filtering drawer 207 with the tiny impurity in the aquatic through the thin filter screen 209 that sets up to guarantee that water can not cause shower nozzle 216 to block up when passing through shower nozzle 216 blowout, guarantee the washing effect, and the staff need not regularly carry out the shower nozzle clearance, bring the convenience for the staff, the impurity that is washed down can directly fall back in the effluent water sump through dropping mouth 115 that the cleaner casing 1 bottom was seted up, during the periodic maintenance of orifice plate formula grid cleaner, the staff can be through taking out filtering drawer 207 from fluting 205 with portable pole 211, with the tiny impurity clearance that filters out, thereby guarantee subsequent filter effect.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.

Claims (8)

1. The utility model provides an orifice plate formula grid scrubbing machine with back flush function, includes scrubbing machine casing (1), its characterized in that: the utility model discloses a sewage treatment machine, including sewage treatment machine casing (1), driving motor (101) top fixedly connected with driving lever (101), driving lever (101) output fixedly connected with transfer line (102), the fixed cover in the outside of transfer line (102) is equipped with first belt (104) of drive line (103), inside top of sewage treatment machine casing (1) is equipped with drive roller (109), inside fixedly connected with drive roller bull stick (112) of drive roller (109), drive roller bull stick (112) are located the inside outside fixed cover of sewage treatment machine casing (1) and are equipped with drive wheel two (113), drive roller bull stick (112) right-hand member runs through sewage treatment machine casing (1) right side lateral wall and fixed cover and is equipped with drive wheel three (114), the inside bottom of sewage treatment machine casing (1) is equipped with driven roller (110), driven roller (110) and drive roller (109) outside movable cover are equipped with orifice plate grid (111), be equipped with vibration mechanism (3) between driven roller (110) and the drive roller (109), sewage treatment machine casing (1) rear side bottom is equipped with positive and negative flushing mechanism (2).

2. The perforated plate type grid sewage disposal machine with back flushing function as set forth in claim 1, wherein: the positive and negative flushing mechanism (2) comprises a fixed plate (201) fixedly connected to the bottom of the rear side of the sewage disposal machine shell (1), a water suction pump (202) is fixedly connected to the top of the fixed plate (201), a water filtering tank (203) is fixedly connected to the input end of the water suction pump (202), a primary filter screen (204) is fixedly connected to the left side of the water filtering tank (203), a slot (205) is formed in the top of the water filtering tank (203), sliding grooves (206) are formed in the inner walls of the front side and the rear side of the slot (205), a filter drawer (207) is arranged in the filter drawer (205), fine filter screens (209) are fixedly connected to the right side of the filter drawer (207), sliding rods (208) are fixedly connected to the front side and the rear side of the filter drawer (207), a baffle (210) is fixedly connected to the top of the baffle (210), a hand lifting rod (211) is fixedly connected to the output end of the water suction pump (202), a water pipe (212) is fixedly connected to the top of the water pipe (212), a diversion assembly (213) is fixedly connected to the top of the water pipe (215), the diversion assembly (215) is connected to the front side and the back side of the water pipe (214) respectively, the water pipe (215) is fixedly connected to the back flushing pipe (215) and the back side of the sewage disposal pipe (215) respectively, the sewage disposal pipe (215) is located in the front and the back side of the sewage disposal machine (1), and a plurality of spray heads (216) which are distributed in a straight line at equal intervals are fixedly connected to the opposite sides of the positive flushing pipe (214) and the back flushing pipe (215).

3. The perforated plate type grid sewage disposal machine with back flushing function as set forth in claim 1, wherein: the vibration mechanism (3) comprises a rotating rod (303) which is rotationally connected to the inside of a sewage disposal machine shell (1), a fixed cylinder (301) is rotationally connected to the outer side of the rotating rod (303), two ends of the fixed cylinder (301) are respectively fixedly connected with a fixed rod (302) which is positioned on the upper side and the lower side of the rotating rod (303), the fixed cylinder (301) is fixedly connected with the inner wall of the sewage disposal machine shell (1) through the fixed rods (302) which are arranged on the left side and the right side, a rotating roller (306) is fixedly sleeved on the outer side of the rotating rod (303) and is positioned in the fixed cylinder (301), a pressing plate (307) is fixedly connected to the surface of the rotating roller (306), a driving wheel four (304) is fixedly sleeved on the outer side of the rotating rod (303), a second belt (305) is movably sleeved on the outer side of the driving wheel four (304), an extension box (308) is fixedly connected to the rear side of the fixed cylinder (301), limit sliding grooves (309) are respectively formed in the left side and the right side of the extension box (308), a plate (310) is fixedly connected to the inner wall of the extension box (308), a force-bearing plate (310) is respectively arranged in the extension box (308), a force-bearing plate (310) is fixedly connected to the left side and the two push rods (310), the push rod (312) penetrates through the rear side wall of the extension box (308) and is fixedly connected with a vibrating plate (314).

4. The perforated plate type grid sewage disposal machine with back flushing function as set forth in claim 2, wherein: the bottom of the baffle (210) is attached to the top of the water filtering tank (203), the filter drawer (207) is connected with the sliding grooves (206) formed in the inner walls of the front side and the rear side of the slot (205) in a sliding manner through the sliding rods (208) arranged on the front side and the rear side, and the input end of the water suction pump (202) is communicated with the interior of the slot (205).

5. A perforated plate type grid sewage disposal machine with back flushing function as set forth in claim 3, wherein: the left end and the right end of the rotating rod (303) are rotationally connected with the inner wall of the dirt separator shell (1) through bearings, one end of the second belt (305) away from the fourth driving wheel (304) is movably sleeved on the outer side of the second driving wheel (113), one end of the first belt (104) away from the first driving wheel (103) is movably sleeved on the outer side of the third driving wheel (114), the left end of the driving roller rotating rod (112) is rotationally connected with the left inner wall of the dirt separator shell (1) through bearings, and the driving roller rotating rod (112) is rotationally connected with the penetrating part of the right side wall of the dirt separator shell (1).

6. A perforated plate type grid sewage disposal machine with back flushing function as set forth in claim 3, wherein: the extension case (308) is communicated with the inside of the fixed cylinder (301), the front side of the stress plate (310) is attached to the rear side of the rotary roller (306), the stress plate (310) is connected with limit sliding grooves (309) formed in the inner walls of the left side and the right side of the extension case (308) in a sliding manner through limit sliding rods (311) arranged on the left side and the right side, the rear end of the return spring (313) is fixedly connected with the inner wall of the rear side of the extension case (308), the front end of the return spring (313) is fixedly connected with the rear side of the stress plate (310), and the push rod (312) is connected with the penetrating position of the rear side wall of the extension case (308) in a sliding manner.

7. The perforated plate type grid sewage disposal machine with back flushing function as set forth in claim 1, wherein: front opening (105) have been seted up to scrubbing machine casing (1) front side, rear opening (106) have been seted up to scrubbing machine casing (1) rear side, dropping mouth (115) have been seted up to scrubbing machine casing (1) bottom, scrubbing machine casing (1) rear side top fixedly connected with arranges feed bin (107), arrange feed bin (107) bottom fixedly connected with support (108).

8. The perforated plate type grid dirt remover with a back flushing function as set forth in claim 7, wherein: the discharging bin (107) is communicated with the inside of the dirt separator shell (1), and the dirt separator shell (1) is obliquely assembled at an angle of 40-50 degrees when assembled.