CN210140445U

CN210140445U - Sewage treatment equipment

Info

Publication number: CN210140445U
Application number: CN201920727509.4U
Authority: CN
Inventors: 薛莎莎
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-19
Filing date: 2019-05-19
Publication date: 2020-03-13
Anticipated expiration: 2029-05-19

Abstract

The utility model discloses a sewage treatment device, which at least comprises a sewage tank for accommodating sewage, a filter arranged below the sewage level in the sewage tank, a clean water tank for accommodating filtered clean water, and a water pump connected with the water outlet end of the filter through a water inlet pipe, wherein the water pump is also connected with a water outlet pipe communicated to the clean water tank; the filter comprises a shell, a circular tube-shaped filter plate installation cavity is arranged in the shell, and a plurality of ceramic filter plates are arranged in the filter plate installation cavity at equal intervals; a water inlet valve body and a water outlet valve body of the round pipe-shaped ceramic filter plate which is used for switching the working state are hermetically and rotatably arranged in the shell; the utility model discloses an install a plurality of ceramic filter in the filter, when certain ceramic filter produced the jam, the switching in accessible water route used the ceramic filter of next position to carry out the filtration of sewage, can show the holistic maintenance-free time of extension equipment.

Description

Sewage treatment equipment

Technical Field

The utility model belongs to the sewage treatment field, concretely relates to sewage filtration equipment structure.

Background

Chinese patent application with document No. CN103239926A discloses a ceramic plate sewage filtering device, which comprises a plurality of ceramic filter plates and a fixing frame for supporting the ceramic filter plates, wherein a plurality of through holes are arranged in the ceramic filter plates, each through hole at least has a through hole opening communicated with the peripheral cross section of one ceramic filter plate, a water storage chamber is arranged in the fixing frame, the water storage chamber is communicated with the through hole opening of the ceramic filter plate, a water outlet is further arranged on the fixing frame, the water outlet is communicated with the water storage chamber, and an ultrasonic device for causing the vibration of the ceramic filter plates is further arranged on the fixing frame. The utility model can continuously transmit ultrasonic waves to the ceramic filter plate to cause the vibration of the ceramic filter plate, thereby avoiding the blockage caused by the attachment of impurities on the ceramic filter plate and prolonging the service life of the ceramic filter plate; meanwhile, the mounting holes, the simply supported beams and the limiting sleeves are arranged on the fixing frame, and free connection among different ceramic plate sewage filtering devices can be achieved without external components.

The vibration through ultrasonic wave makes the attached of ceramic filter plate surface impurity avoid blockking up in the above-mentioned scheme, but to embedding the inside less granule impurity of ceramic filter, the ultrasonic wave also can not make it break away from ceramic filter completely.

Certainly, for the impurities blocked in the ceramic filter plate, part of the impurities can be removed in a back washing mode, so that the service life of the ceramic filter plate is prolonged.

For example, chinese patent application No. CN107983009A discloses a method for using a sewage treatment machine, which uses a ceramic filter disc with micro-filtration pores as a filter medium to perform solid-liquid separation filtration treatment on stone sewage, and the method for using the sewage treatment machine comprises four steps of stone sewage standing and conveying, stone sewage filtration treatment, combined cleaning and shutdown cleaning, wherein the stone sewage filtration treatment step is divided into a slurry suction step, a drying step, an unloading step and a backwashing step; adopt the utility model discloses the method carries out filtration treatment to the sewage that produces in the stone material course of working, and the filter effect is good, and filtrating is limpid and transparent, and filter cake drying property is good, in addition, the utility model discloses the method is compared with current stone material sewage treatment method, and the energy consumption saves about more than 80%, also can effectively prolong the life of ceramic filter dish and ultrasonic vibrator box.

It can also be known from the above-mentioned literature that the life of ceramic filter has influenced the maintenance cycle of equipment, overhauls frequently, changes the filter plate, is unfavorable for the steady operation of equipment, also wastes time and energy, except prolonging the life of single ceramic filter, utility model people thinks can also prolong the holistic non-maintaining time of equipment through other modes.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: aiming at the defects in the prior art, the sewage treatment equipment which is ingenious in structural design and can prolong the maintenance-free time of the equipment is provided.

In order to realize the purpose of the utility model, the following technical scheme is adopted to realize: a sewage treatment device at least comprises a sewage tank for containing sewage, a filter arranged below the sewage level in the sewage tank, a clean water tank for containing filtered clean water, and a water pump connected with the water outlet end of the filter through a water inlet pipe, wherein the water pump is also connected with a water outlet pipe communicated to the clean water tank;

the filter comprises a shell, wherein a circular tube-shaped filter plate installation cavity is arranged in the shell, and a plurality of ceramic filter plates are arranged in the filter plate installation cavity at equal intervals;

a water inlet valve pipe and a water outlet valve pipe which are in circular tube shapes and are arranged in parallel with the filter plate mounting cavity are arranged in the shell; the side wall of the water inlet valve pipe is equidistantly formed with water inlet and water through holes communicated with the filter plate mounting cavity along the length direction, and the side wall of the water outlet valve pipe is equidistantly formed with water outlet and water through holes communicated with the filter plate mounting cavity along the length direction;

a circular tube-shaped water inlet valve body is hermetically and rotatably arranged in the water inlet valve pipe, and water inlet valve holes with the same number as that of the water inlet limber holes are formed in the side wall of the water inlet valve body; the water outlet valve body is internally and rotatably provided with a circular tube-shaped water outlet valve body in a sealing way, and the side wall of the water outlet valve body is formed with water outlet valve holes which are positioned on a spiral line and have the same number with the water outlet limber holes;

a water inlet channel communicated with one end of the water inlet valve pipe is formed in the shell, and the other end of the water inlet channel is communicated with the bottom of the shell; one end of the water inlet valve body is communicated with the water inlet channel;

one side of the shell is provided with a water outlet joint communicated with one end of the water outlet valve body;

the end parts of the water inlet valve body and the water outlet valve body are connected through gear transmission, so that a water inlet valve hole of the water inlet valve body is communicated with a water inlet limber hole at a corresponding position, a water outlet valve hole of the water outlet valve body is communicated with a water outlet limber hole at a corresponding position, and the water inlet valve hole and the water outlet valve hole which are in a communicated state at present are just positioned at two ends of a ceramic filter plate.

Preferably, the method comprises the following steps: the water outlet joint is connected to the outer side of a filter plate switching control seat, and the filter plate switching control seat is fixedly connected to the outer side wall of the shell; a connector connecting seat which is communicated with the water outlet connector and is in sealed, rotating and sleeved connection with one end of the water outlet valve body is arranged in the filter plate switching control seat; one end of the water outlet valve body is integrally connected with a rotary joint which is in sealed rotary insertion connection with the joint connecting seat;

a driven gear b is arranged at the connecting position of the water outlet valve body and the rotary joint; one end of the water inlet valve body, which is far away from the water inlet channel, is closed, and a driven gear a is arranged at the closed end of the water inlet valve pipe; the side wall of the shell is rotatably provided with a driving gear and a linkage gear, and the driven gear a, the driving gear, the linkage gear and the driven gear b are sequentially in meshing transmission;

a driving mechanism for controlling the rotation of the driving gear is arranged in the filter plate switching control seat;

the driving mechanism comprises a piston cylinder which is fixedly arranged in the filter plate switching control seat and is communicated with the joint connecting seat through a communicating pipe, a piston which is connected in the piston cylinder in a sealing and sliding manner and is driven by the back flush water pressure, and a driving ratchet sleeve which is connected to the piston and is used for pushing the driving gear to rotate;

one end of the driving gear, which faces the driving ratchet sleeve, is connected with a driven ratchet sleeve; oblique teeth with opposite oblique directions are formed on the opposite end faces of the driving ratchet sleeve and the driven ratchet sleeve respectively, so that when the driving ratchet sleeve moves to a limit position towards the direction of the driven ratchet sleeve, the driving gear can be driven to rotate, the water inlet valve body and the water outlet valve body are driven to rotate by an angle a, and the central angle b of the two adjacent water inlet valve holes along the circumferential direction of the water inlet valve body is an integral multiple of the angle a.

Preferably, the method comprises the following steps: the linkage gear is last along circumference equidistance fixed mounting have with the positioning magnet b of intaking valve hole equiquantity, casing lateral wall fixed mounting can with any positioning magnet a of positioning magnet b chucking location.

Preferably, the method comprises the following steps: the piston comprises a piston bracket and a piston body which is fixedly connected with one end of the piston bracket and is made of rubber; one end of the piston bracket, which is far away from the piston body, is connected with two guide sliding sleeves parallel to the piston cylinder, and a guide rod connected with the guide sliding sleeves in a sliding manner is fixedly connected in the filter plate switching control seat;

one end of the piston support, which is far away from the piston body, is formed with a circular groove-shaped insertion groove for accommodating the driving ratchet sleeve, and the inner wall of the insertion groove is formed with more than two guide chutes; a guide raised head which is connected with the guide chute in a sliding way is formed on the outer wall of the drive ratchet sleeve;

a straight groove part is formed at one end, close to the piston body, of the guide chute, a reset iron block is fixedly mounted on the side wall of the piston support far away from one end of the piston body, and a reset magnet attracted with the reset iron block is fixedly mounted on the outer wall of the drive ratchet sleeve; when the drive ratchet sleeve is not under the action of external force, the lead raised head is positioned at one end, far away from the straight groove part, in the guide inclined groove.

Preferably, the method comprises the following steps: the shell comprises an upper shell and a lower shell which are fixedly connected in an upper-lower sealing manner; the inner wall of the filter plate mounting cavity is equidistantly formed with a filter plate fixing inner convex ring for positioning the ceramic filter plate, the periphery of the ceramic filter plate is fixedly connected with a sealing ring, and the outer wall of the sealing ring is in sealing clamping connection with the filter plate fixing inner convex ring.

Preferably, the method comprises the following steps: the lower end of the shell is connected with a stainless steel filter tank, and at least the outer side wall of the stainless steel filter tank is made of stainless steel.

Preferably, the method comprises the following steps: the inlet valve body is close to the outer wall of inhalant canal one end, the outlet valve body is close to the outer wall of water connectors one end to and the sealing washer is installed respectively to the outer end position of each inlet valve opening, outlet valve opening.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an install a plurality of ceramic filter in the filter, when certain ceramic filter produced the jam, the switching in accessible water route used the ceramic filter of next position to carry out the filtration of sewage to, the water pressure that the back flush can be used in the switching of ceramic filter provides power, need not the manual work and switches, and convenient operation can show the holistic non-maintaining time of extension equipment like this.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the filter of the present invention.

Fig. 3 is a schematic exploded view of the filter of the present invention.

Fig. 4 is a schematic sectional view of the housing of the filter according to the present invention.

Fig. 5 and fig. 6 are schematic views of the transmission structure of the middle water inlet valve body and the water outlet valve body of the present invention.

Fig. 7 is a schematic structural diagram of the driving mechanism of the present invention.

Fig. 8 is a schematic structural diagram of a piston in the driving mechanism of the present invention.

FIG. 9 is a schematic view of the filter structure in example 2.

Fig. 10 is a schematic structural view of a brush assembly in embodiment 2.

Fig. 11 is a schematic structural view of a water pump in embodiment 3.

Fig. 12 is an exploded view of the water pump.

Fig. 13 is a structural state diagram of the reversing sleeve for communicating the first water inlet joint and the first water outlet joint.

Fig. 14 is a structural state diagram of the reversing sleeve for communicating the second water inlet joint and the second water outlet joint.

Fig. 15 and 16 are schematic structural views of a pump casing of the water pump.

Fig. 17 is a sectional structural view of a pump case of the water pump.

Fig. 18 is an exploded view of the reversing sleeve and the centrifugal water wheel portion.

1. A sewage tank;

2. a filter;

211. a lower housing; 212. an upper housing; 210. a filter plate installation cavity; 213. the filter plate fixes the inner convex ring; 214. a water inlet valve pipe; 2141. a water inlet and a water through hole; 2142. a water inlet channel; 215. a water outlet valve pipe; 2151. a water outlet limber hole; 216. a gear shaft; 217. a positioning magnet a; 218. a filter tank connecting part; 219. a control seat connecting part;

22. a stainless steel filter tank;

23. a filter plate switching control seat; 231. a water outlet joint; 232. a connector connecting seat; 233. a piston cylinder; 234. a guide bar; 235. a communicating pipe;

24. a ceramic filter plate;

251. a water inlet valve body; 2511. a water inlet valve hole; 2512. a driven gear a; 252. a water outlet valve body; 2521. a water outlet valve hole; 2522. a driven gear b; 2523. a rotary joint;

261. a drive gear; 2611. a driven ratchet sleeve; 262. a linkage gear; 2621. a positioning magnet b;

271. a piston; 2711. a piston holder; 2712. a piston body; 2713. a guide sliding sleeve; 2714. a guide chute; 2715. a straight groove part; 2716. resetting the iron block;

272. driving the ratchet sleeve; 2722. a reset magnet; 2723. a guide raised head;

28. a brushing assembly; 281. rotating the bracket; 2811. a water inlet pipe body; 2812. a water connection joint; 2813. a rotary interface; 2814. a support rib; 282. rotating the brush body; 2821. a water supply support arm; 2822. a brush arm; 2823. a water jet; 2824. brushing; 2825. rotating the plug;

3. a water inlet pipe;

4. a water outlet pipe;

5. a water pump; 51. a motor; 511. a pump cover;

52. a pump housing; 52a, a water inlet sleeve; 521. a first water inlet joint; 522. a first water outlet joint; 523. a second water outlet joint; 524. a second water inlet joint; 525. a water inlet sleeve connecting part; 526. a first water inlet channel; 527. a second water inlet channel; 528. limiting convex strips;

53. a reversing sleeve; 531. a water inlet switching port; 532. a water outlet switching port; 533. a steel sheet; 534. the steel sheet is accommodated in the groove; 535. a limiting groove;

54. a centrifugal water wheel; 541. a substrate; 542. a first blade; 543. a second blade; 544. a magnet mounting cavity; 545. an iron sheet installation cavity; 546. a commutating magnet; 547. resetting the iron sheet; 548. a cover plate;

6. a clean water tank.

Detailed Description

Example 1

Referring to fig. 1 to 8, the present embodiment is a sewage treatment apparatus, which at least includes a sewage tank 1 for containing sewage, a filter 2 installed below the sewage level in the sewage tank, a clean water tank 6 for containing filtered clean water, and a water pump 5 connected to the water outlet end of the filter through a water inlet pipe 3, wherein the water pump is further connected to a water outlet pipe 4 leading to the clean water tank.

The filter comprises a shell, wherein a circular tube-shaped filter plate installation cavity 210 is arranged in the shell, and a plurality of ceramic filter plates 24 are arranged in the filter plate installation cavity at equal intervals.

As shown in fig. 4, the housing includes an upper housing 212 and a lower housing 211 which are fixedly connected with each other in an upper-lower sealing manner; the inner wall of the filter plate mounting cavity is equidistantly formed with a filter plate fixing inner convex ring 213 for positioning the ceramic filter plate, the periphery of the ceramic filter plate is fixedly connected with a sealing ring, and the outer wall of the sealing ring is in sealing clamping connection with the filter plate fixing inner convex ring.

A water inlet valve pipe 214 and a water outlet valve pipe 215 which are in circular tube shapes and are arranged in parallel with the filter plate mounting cavity are arranged in the shell; the intake valve pipe lateral wall has the inlet limbers 2141 with the filter plate installation cavity intercommunication along length direction equidistance shaping, the outlet valve pipe lateral wall has the outlet limbers 2151 with the filter plate installation cavity intercommunication along length direction equidistance shaping. The number of the water inlet limber holes and the number of the water outlet limber holes are respectively equal to the number of the ceramic filter plates.

A circular pipe-shaped water inlet valve body 251 is installed in the water inlet valve pipe in a sealing and rotating mode, and water inlet valve holes 2511 which are equal to the water inlet limber holes in number and are located on one spiral line are formed in the side wall of the water inlet valve body; the water outlet valve pipe is internally provided with a circular pipe-shaped water outlet valve body 252 in a sealing and rotating mode, and water outlet valve holes 2521 which are located on one spiral line and equal to the number of the water outlet limber holes are formed in the side wall of the water outlet valve body.

Referring to fig. 3 and 4, when the inlet valve body and the outlet valve body are in the initial positions, the leftmost inlet valve hole is aligned with and communicated with the leftmost inlet water hole (left side of the leftmost ceramic filter plate), and the leftmost outlet valve hole is aligned with and communicated with the leftmost outlet water hole (right side of the leftmost ceramic filter plate). Because the water inlet valve body and the water outlet valve body synchronously rotate at equal angles when rotating, when the second water inlet valve hole on the left side of the water inlet valve body is just opposite to and communicated with the second water inlet limber hole on the left side, the second water outlet valve hole on the left side of the water outlet valve body is also just opposite to and communicated with the second water outlet limber hole on the left side, and at the moment, the second ceramic filter plate on the left side is in a working state. Namely, the ceramic filter plate for filtering can be switched by switching the water inlet valve hole and the water outlet valve hole.

A water inlet channel 2142 communicated with one end of the water inlet valve pipe is formed in the shell, and the other end of the water inlet channel is communicated with the bottom of the shell; one end of the water inlet valve body is communicated with the water inlet channel.

The lower end of the shell is connected with a stainless steel filter tank 22, and at least the outer side wall of the stainless steel filter tank is made of stainless steel. The stainless steel filter 22 is used for blocking impurities with larger grain sizes, and plays a role in primary filtration.

The sewage pool bottom fixedly connected with filter support, the filter passes through stainless steel filter tank bottom and filter support fixed connection.

One side of the shell is provided with a water outlet joint 231 communicated with one end of the water outlet valve body. The water outlet joint is connected with the water inlet pipe.

The central angles of the spiral lines of the inlet valve hole 2511 and the outlet valve hole 2521 are smaller than 360 °, that is, only one inlet valve hole is communicated with the inlet water through hole at the same time, and the positions of the other inlet valve holes are staggered with those of the other inlet water through holes. The same is true of the water outlet valve hole.

Of course, if the flux of one ceramic filter plate is small, more than 2 ceramic filter plates can be in a working state at the same time by adjusting the positions of the water inlet valve hole and the water outlet valve hole.

The water outlet joint is connected to the outer side of a filter plate switching control seat 23, the filter plate switching control seat is fixedly connected to the outer side wall of the shell, and a control seat connecting part 219 connected with the filter plate switching control seat is formed on the outer side wall of the shell; a joint connecting seat 232 which is communicated with the water outlet joint and is in sealed, rotating and sleeved connection with one end of the water outlet valve body is arranged in the filter plate switching control seat; one end of the water outlet valve body is integrally connected with a rotary joint 2523 which is in sealed rotary insertion connection with the joint connecting seat. And a rubber sealing ring is arranged between the periphery of the rotary joint and the joint connecting seat.

A driven gear b2522 is arranged at the connecting position of the water outlet valve body and the rotary joint; one end of the water inlet valve body, which is far away from the water inlet channel, is closed, and a driven gear a2512 is arranged at the closed end of the water inlet valve pipe; a driving gear 261 and a linkage gear 262 are rotatably mounted on the side wall of the shell, and the driven gear a, the driving gear, the linkage gear and the driven gear b are sequentially in meshing transmission; the lateral wall of the shell is connected with a gear rotating shaft which is respectively and rotatably connected with the driving gear and the linkage gear.

And a driving mechanism for controlling the rotation of the driving gear is arranged in the filter plate switching control seat.

The inlet valve body is close to the outer wall of inhalant canal one end, the outlet valve body is close to the outer wall of water connectors one end to and the sealing washer is installed respectively to the outer end position of each inlet valve opening, outlet valve opening. Certainly, when the water inlet valve body, the water outlet valve body, the water inlet valve pipe and the water outlet valve pipe are all made of alumina ceramics, if the water inlet valve body, the water outlet valve body, the water inlet valve pipe and the water outlet valve pipe have sealing performance, additional sealing rings do not need to be arranged.

The linkage gear is last along circumference equidistance fixed mounting with water intaking valve hole etc.'s location magnet b2621, casing lateral wall fixed mounting can with any location magnet b attracts the location magnet a217 of tight location. The positioning magnet b and the positioning magnet a are matched for positioning, so that the water inlet valve body and the water outlet valve body are positioned at fixed positions after rotating for an angle, and the water inlet valve hole and the water inlet limber hole, and the water outlet valve hole and the water outlet limber hole which are in a conduction state at present are kept right.

Referring to fig. 7 and 8, the piston includes a piston holder 2711, and a piston body 2712 made of rubber material and fixedly connected to one end of the piston holder; one end of the piston bracket, which is far away from the piston body, is connected with two guide sliding sleeves 2713 which are parallel to the piston cylinder, and a guide rod 234 which is connected with the guide sliding sleeves in a sliding manner is fixedly connected in the filter plate switching control seat.

A circular groove-shaped inserting groove for accommodating the driving ratchet sleeve is formed in one end, far away from the piston body, of the piston support, and more than two guide inclined grooves 2714 are formed in the inner wall of the inserting groove; and a guide raised head 2723 in sliding connection with the guide chute is formed on the outer wall of the drive ratchet sleeve.

A straight groove part 2715 is formed at one end, close to the piston body, of the guide chute, a reset iron block 2716 is fixedly installed on the side wall of the piston bracket, far away from one end of the piston body, and a reset magnet 2722 attracted with the reset iron block is fixedly installed on the outer wall of the drive ratchet sleeve; when the drive ratchet sleeve is not under the action of external force, the lead raised head is positioned at one end, far away from the straight groove part, in the guide inclined groove.

The working principle of the filter is mainly explained as follows: when the water outlet connector is communicated with the water inlet end of the water pump, negative pressure is respectively generated in the connector connecting seat 232, the communicating pipe 235 and the piston cylinder 233, so that the piston moves to a limit position towards a direction away from the driving gear, and the driving ratchet sleeve is not contacted with the driven ratchet sleeve.

When the water outlet joint is communicated with the water outlet end of the water pump, the joint connecting seat 232, the communicating pipe 235 and the piston cylinder 233 are all in positive pressure, and the filter enters a back flushing state, namely, part of impurities blocked in the ceramic filter plate can be flushed out in a reverse direction by reverse water pressure, so that the service life of the ceramic filter plate is prolonged.

Meanwhile, the piston moves towards the driving gear by water pressure, the driving ratchet sleeve abuts against the driven ratchet sleeve, and when the thrust of the driving ratchet sleeve is large enough, the oblique teeth on the opposite end faces of the driving ratchet sleeve and the driven ratchet sleeve slide relatively, so that the driving gear rotates.

In this embodiment, the adjustment of the resistance (which can be equivalently calculated as whether to switch the pressure setting value of the ceramic filter plate) can be realized by selecting the positioning magnets a and b with different magnetic forces. Correspondingly, can install pressure sensor on the inlet tube and detect the pressure in the inlet tube, when not needing to switch ceramic filter, thereby adjust the output of water pump and make the water pressure in the inlet tube be less than the pressure setting value, then the piston can't promote drive gear and rotate. When the ceramic filter plates need to be switched, the output power of the water pump is adjusted, so that the water pressure in the water inlet pipe is higher than a pressure set value, the piston is communicated with the driving ratchet sleeve to push the driving gear to rotate, and the water inlet valve body and the water outlet valve body rotate by an angle, namely, the next ceramic filter plate is switched to be filtered.

It should be noted that when the driving ratchet sleeve and the driven ratchet sleeve are in an initial state, the top ends of the helical teeth of the driving ratchet sleeve and the driven ratchet sleeve are staggered with each other, and when the driving ratchet sleeve and the driven ratchet sleeve relatively move to a limit position, the top ends of the helical teeth of the driving ratchet sleeve and the driven ratchet sleeve are on the same straight line, so that an inclined guide chute needs to be arranged in the piston support, and a reset iron block and a reset magnet are matched to enable the driving ratchet sleeve and the driven ratchet sleeve to reversely move until the driving ratchet sleeve can return to the initial state after being disengaged.

In addition, in this embodiment, when the filter is in a working state, the water pump drives water to flow from the water inlet pipe to the water outlet pipe, and when the filter is used for backwashing or switching the ceramic filter plates, the water pump drives water to flow from the water outlet pipe to the water inlet pipe, so that a four-way reversing valve (not shown) or two water pumps arranged in opposite directions need to be connected to a pipeline.

Of course, the driving gear of the filter in this embodiment may also be directly driven by the motor, but the motor needs to be installed in the filter or installed above the filter through the transmission component, and a corresponding power supply line for laying the motor is needed, and the aforementioned way of driving the driving gear to rotate through the water pressure does not need to supply power to the filter, so that the requirement of the filter on the installation environment is reduced, and the applicability is stronger.

Example 2

As shown in fig. 9 and 10, the present embodiment is modified from embodiment 1 as follows: and a brushing assembly 28 is respectively arranged on one side of the water inlet end of each ceramic filter plate in the shell. The brushing assembly includes a circular ring-shaped rotary support 281 fixedly installed in the filter plate installation cavity, and a rotary brush body 282 rotatably connected to the middle of the rotary support.

A hollow water inlet pipe body 2811 and two supporting ribs 2814 are connected to the inner periphery of the rotary support at equal angles, a water passing connector 2812 communicated with the outer end of the water inlet pipe body is arranged on the outer periphery of the rotary support, and the water passing connector is inserted into and communicated with the water inlet water passing hole; a rotary interface 2813 is formed at the inner end of the water inlet pipe body, which is positioned at the center of the rotary support.

The rotary brush body comprises a hollow water-through support arm 2821 and two brush arms 2822, the inner ends of the hollow water-through support arm and the brush arms are connected, and one ends of the hollow water-through support arm and the brush arms facing the ceramic filter plate are uniformly connected with bristles 2824; the inner end of the water passing support arm is connected with a rotary plug 2825 which is rotatably plugged and communicated with the rotary interface 2813, and the outer end of the water passing support arm is formed with a water spraying opening 2823 with an opening along the tangential direction of the rotary support.

In this embodiment, the rotating brush body is used for brushing off impurities on the surface of the water inlet end of the ceramic filter plate. Water flowing into the water inlet pipe body from the water inlet limber hole sequentially passes through the rotary connector, the rotary plug and the water through support arm and is finally sprayed out from the water spray nozzle, and the reaction force of the water flow enables the rotary brush body to rotate, so that the bristles brush the surface of the ceramic filter plate.

Example 3

As shown in fig. 11 and 18, this embodiment is an improvement of the water pump in embodiment 1 or 2, such that the water pump can change the direction of pumping water as required.

The 5-stage water pump comprises a pump shell 52, a motor 51 coaxially connected to one end of the pump shell, and a centrifugal water wheel 54 rotatably installed in the pump shell.

The pump case is circular groove body shape, pump cover 511 is connected with in pump case opening one end sealing, the output shaft and the pump cover of motor are sealed to rotate and are connected.

The middle of the outer end face of one end of the pump shell, which is far away from the motor, is connected with a first water inlet joint 521, and the side wall of the pump shell is connected with a first water outlet joint 522 and a second water outlet joint 523; the outer terminal surface that motor one end was kept away from to the pump case just is located the sealed cover of the periphery of first water supply connector and is equipped with one and intake cover 52a, it is connected with second water supply connector 524 to intake the cover lateral wall, the outer terminal surface shaping that motor one end was kept away from to the pump case has the cover connecting portion 525 that intakes with the sealed grafting of intaking.

The pump shell is provided with a first water inlet channel 526 which is communicated with the first water inlet joint and is close to the middle position in the pump shell, and a second water inlet channel 527 which is communicated with the second water inlet joint and is close to the middle position in the pump shell.

A circular groove-shaped reversing sleeve 53 is rotatably arranged on the periphery of the centrifugal water wheel in the pump shell, a water inlet switching port 531 communicated with the first water inlet channel or the second water inlet channel is formed at the bottom of the reversing sleeve, and a water outlet switching port 532 communicated with the first water outlet joint or the second water outlet joint is formed in the side wall of the reversing sleeve. And sealing rubber rings are arranged on the reversing sleeve outside the water inlet switching port and the water outlet switching port, or at least the parts of the inner side of the pump shell and the outer side of the reversing sleeve are made of alumina ceramic materials, so that the sealing rubber rings are not needed.

The pump shell inner side wall is formed with a limiting convex strip 528, and the outer side wall of the reversing sleeve is formed with a limiting groove 535 matched with the limiting convex strip to limit the rotation range of the reversing sleeve.

As shown in fig. 13, when the reversing sleeve rotates clockwise to the limit position, the water inlet switching port is opposite to the first water inlet channel, and the water outlet switching port is opposite to the first water outlet joint. As shown in fig. 14, when the reversing sleeve rotates counterclockwise to the limit position, the water inlet switching port is opposite to the second water inlet channel, and the water outlet switching port is opposite to the second water outlet joint.

The side wall of the reversing sleeve is fixedly provided with a steel sheet 533, and the centrifugal water wheel is internally provided with a reversing magnet 546 which can attract the steel sheet through magnetic force, so as to drive the reversing sleeve to rotate forwards and backwards.

And a steel sheet accommodating groove 534 for accommodating the steel sheet is formed in the side wall of the reversing sleeve, and the steel sheet accommodating groove is fixedly bonded with the steel sheet.

The centrifugal water wheel comprises a circular base plate, more than two first blades 542 and second blades 543, wherein the first blades 542 are integrally connected to the base plate and are far away from one end of the motor, the second blades 543 are equal in number to the first blades, and the first blades and the second blades are arranged in a staggered mode at equal angles along the circumferential direction of the base plate.

An iron sheet installation cavity 545 is formed in the position, close to the center of the substrate, of the first blade, a magnet installation cavity 544 is formed in the position, located on the outer side of the iron sheet installation cavity, of the first blade, a reset iron sheet 547 is fixedly inserted into the iron sheet installation cavity, and the reversing magnet is installed in the magnet installation cavity and can slide along the radial direction of the substrate.

When the reversing magnet is at the extreme position of the outer end of the magnet mounting cavity and is only subjected to gravity or not subjected to external force, the magnetic field attraction between the reversing magnet and the reset iron sheet is larger than that between the reversing magnet and the steel sheet. Therefore, when the centrifugal water wheel does not rotate, the reversing magnet and the reset iron sheet are tightly attracted and positioned at the extreme position of the inner end of the magnet mounting cavity.

When the water pump is used for pumping water, when the motor drives the centrifugal water wheel to rotate at a first speed, the first speed is not enough to separate the reversing magnet from the reset iron sheet, so that the reversing magnet and the steel sheet keep a maximum distance, and the phenomenon that the magnetic field suction force between the reversing magnet and the steel sheet blocks the rotation of the centrifugal water wheel to waste electric energy is reduced.

When the motor drives the centrifugal water wheel to rotate at a second speed, the second speed can enable the centrifugal force of the reversing magnet to be larger than the magnetic field attraction force between the reversing magnet and the reset iron sheet, so that the reversing magnet moves outwards along the magnet installation cavity. When the reversing is located at the outermost end limit position of the magnet installation cavity, the magnetic field suction force between the reversing magnet and the steel sheet is enough to drive the reversing sleeve to rotate relative to the pump shell, so that when the water pump switches the water pumping direction, the motor drives the centrifugal water wheel to rotate at the second speed for a period of time, and then the reversing sleeve can be driven to rotate from one limit position to the other limit position, and the reversing is completed.

The opening of iron sheet installation cavity and the opening of magnet installation cavity are towards base plate one end, and fixedly connected with covers on the base plate the opening of iron sheet installation cavity, the open-ended apron 548 of magnet installation cavity.

In addition, in this embodiment, the first water outlet joint and the second water outlet joint are at an angle of 60 ° with respect to the center of the circular pump housing. The first water inlet channel and the second water inlet channel are respectively 3 and are alternately arranged along the circumferential direction of the pump shell.

When the water pump is used, the first water inlet connector and the second water outlet connector of the water pump can be communicated with the water outlet pipe, and the second water inlet connector and the first water outlet connector of the water pump can be communicated with the water inlet pipe. The motor rotates counterclockwise at the first speed (refer to fig. 14) and the second water inlet joint is supplied with water and the second water outlet joint is supplied with water, thereby driving the filter to filter the sewage and discharging the filtered water into the clean water tank.

During backwashing, the motor rotates clockwise at the second speed for a period of time (3-10 s) and then rotates at the first speed, the reversing sleeve is reversed to a state shown in figure 13, water is fed into the first water inlet joint and discharged from the first water outlet joint, and the water pump pumps water from the clean water tank into the filter for backwashing the ceramic filter plates.

When the motor rotates clockwise at a third speed (higher than the second speed), the water pressure is enough to drive the piston to move towards the driving gear, so that the inclined teeth on the opposite end surfaces of the driving ratchet sleeve and the driven ratchet sleeve slide relatively, the driving gear rotates, and finally the switching of the ceramic filter plates is realized.

Then, the motor of the water pump motor rotates anticlockwise for a period of time (3-10 s) at a second speed and then rotates at a first speed, the filter recovers a filtering state, and meanwhile the piston recovers an initial state under the action of negative pressure.

When the driving ratchet sleeve needs to drive the driven ratchet sleeve for a plurality of times to enable the water inlet valve body and the water outlet valve body to rotate for a preset angle, the water pump needs to repeatedly rotate clockwise (positive pressure) at a third speed and rotate anticlockwise (negative pressure) at a second speed for a plurality of times to drive the piston to reciprocate for a plurality of times.

Claims

1. A sewage treatment device at least comprises a sewage tank for containing sewage, a filter arranged below the sewage level in the sewage tank, a clean water tank for containing filtered clean water, and a water pump connected with the water outlet end of the filter through a water inlet pipe, wherein the water pump is also connected with a water outlet pipe communicated to the clean water tank;

the method is characterized in that:

2. The sewage treatment apparatus of claim 1, wherein: the water outlet joint is connected to the outer side of a filter plate switching control seat, and the filter plate switching control seat is fixedly connected to the outer side wall of the shell; a connector connecting seat which is communicated with the water outlet connector and is in sealed, rotating and sleeved connection with one end of the water outlet valve body is arranged in the filter plate switching control seat; one end of the water outlet valve body is integrally connected with a rotary joint which is in sealed rotary insertion connection with the joint connecting seat;

3. The sewage treatment apparatus according to claim 2, wherein: the linkage gear is last along circumference equidistance fixed mounting have with the positioning magnet b of intaking valve hole equiquantity, casing lateral wall fixed mounting can with any positioning magnet a of positioning magnet b chucking location.

4. A wastewater treatment plant according to claim 2 or 3, characterized in that: the piston comprises a piston bracket and a piston body which is fixedly connected with one end of the piston bracket and is made of rubber; one end of the piston bracket, which is far away from the piston body, is connected with two guide sliding sleeves parallel to the piston cylinder, and a guide rod connected with the guide sliding sleeves in a sliding manner is fixedly connected in the filter plate switching control seat;

a straight groove part is formed at one end, close to the piston body, of the guide chute, a reset iron block is fixedly mounted on the side wall of the piston support far away from one end of the piston body, and a reset magnet attracted with the reset iron block is fixedly mounted on the outer wall of the drive ratchet sleeve; when the drive ratchet sleeve is not under the action of external force, the guide raised head is positioned at one end, far away from the straight groove part, in the guide inclined groove.

5. The sewage treatment apparatus of claim 1, wherein: the shell comprises an upper shell and a lower shell which are fixedly connected in an upper-lower sealing manner; the inner wall of the filter plate mounting cavity is equidistantly formed with a filter plate fixing inner convex ring for positioning the ceramic filter plate, the periphery of the ceramic filter plate is fixedly connected with a sealing ring, and the outer wall of the sealing ring is in sealing clamping connection with the filter plate fixing inner convex ring.

6. The sewage treatment apparatus of claim 1, wherein: the lower end of the shell is connected with a stainless steel filter tank, and at least the outer side wall of the stainless steel filter tank is made of stainless steel.