CN112704946B

CN112704946B - Sewage treatment device capable of adjusting size of filter screen according to water flow

Info

Publication number: CN112704946B
Application number: CN202011632754.0A
Authority: CN
Inventors: 李金星
Original assignee: Shaoxing Huachun Renewable Resources Co ltd
Current assignee: Shaoxing Huachun Renewable Resources Co.,Ltd.
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-17
Anticipated expiration: 2040-12-31
Also published as: CN112704946A

Abstract

The invention discloses a sewage treatment device capable of adjusting the size of a filter screen according to water flow, which comprises a base body, wherein two first spaces which are symmetrical back and forth are limited in the base body, the base body is provided with a first through hole, the base body is provided with two first grooves which are symmetrical left and right, the base body is provided with a second groove, the base body is provided with a third groove, the area of the filter screen can be automatically adjusted according to the water flow, and when water cannot pass through the filter screen due to accumulation of impurities on the filter screen, the impurities on the filter screen can be cleaned and collected, so that the filter screen is prevented from being blocked by excessive garbage.

Description

Sewage treatment device capable of adjusting size of filter screen according to water flow

Technical Field

The invention belongs to the field of sewage treatment equipment, and particularly relates to a sewage treatment device capable of adjusting the size of a filter screen according to water flow.

Background

Domestic sewage is collective discharges the assigned position through sewage pipe and handles, often contains some floaters or impurity in the domestic sewage of emission, and these impurity and floaters can make sewage pipe take place to block up, especially when heavy rainstorm down, because impurity and floaters block up sewage pipe, cause rainwater to discharge untimely, the condition of a large amount of pondings can appear on the road surface, and ponding floods the road surface and causes the traffic inconvenience, and long-term ponding still can lead to the damage on road surface. Therefore, the sewage treatment device which can control the drainage quantity of the filter screen according to the water flow and can automatically clean impurities on the filter screen is urgently needed to be designed.

Disclosure of Invention

The invention provides a sewage treatment device which can control the drainage quantity according to the water flow and can automatically clean impurities on a filter screen, aiming at overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a sewage treatment device for adjusting the size of a filter screen according to water flow comprises a base body, wherein the base body is provided with a first through hole, the side wall of the base body is provided with two first spaces which are symmetrical front and back relative to the first through hole, the side wall of the base body is provided with two first grooves which are symmetrical left and right relative to the first through hole, the first grooves are positioned above the first spaces, the first spaces and the first grooves are communicated with the first through hole, the side wall of the base body is provided with a second groove which is positioned behind the first through hole, the side wall of the base body is provided with a third groove which is positioned at the front side of the first through hole, the third groove is communicated with the first through hole, the base body is provided with a second through hole, the second through hole is positioned at the front side wall of the second groove, the base body is provided with a fourth groove which is positioned at the upper side of the second groove, the fourth groove is communicated with the second groove and the first through hole, a seventeenth groove is further formed in the side wall of the base body, the seventeenth groove is located on the front side wall of the second groove and above the second through hole, and the seventeenth groove is communicated with the first through hole;

the two buffer mechanisms are bilaterally symmetrical about the first through hole, one end of each buffer mechanism is arranged in the corresponding first groove, the other end of each buffer mechanism is positioned in the corresponding first through hole, and each buffer mechanism is used for buffering water and other impurities;

the discharge control mechanism is arranged in a space formed by the first space and the first through hole, is positioned at the lower side of the buffer mechanism and is used for filtering impurities in water and controlling the discharge according to the water flow;

mechanism is collected in the impurity clearance, the mechanism setting is collected in the impurity clearance just is located in the first through-hole discharge control mechanism's upside, two parts are located respectively around the mechanism is collected in the impurity clearance the third groove with in the second groove, the mechanism is collected in the impurity clearance is used for clearing up the impurity on the filter screen and collects.

Preferably, buffer gear sets up including rotating the primary shaft between the lateral wall around the first groove, the cover is equipped with the buffer board on the primary shaft, the buffer board with primary shaft fixed connection, the fifth groove has been seted up to the buffer board, it is provided with first slide to slide in the fifth groove, first slide with fixed and evenly be provided with a plurality of first springs between the fifth groove tank bottom, keeping away from of first groove the fixed first arc piece that is provided with in a side of first through-hole, the arc wall has been seted up to first arc piece, it is provided with the second arc piece to slide in the arc wall, the downside of second arc piece with the fixed second spring that is provided with between the tank bottom of arc wall, the last side of second arc piece with the downside fixed connection of buffer board.

Preferably, the discharge capacity control mechanism includes two third fixed blocks that slide respectively and set up in two in the first space, two fixed first filter screen that is provided with between the third fixed block, eighteenth groove has been seted up to the trailing flank of third fixed block, fixed being provided with first pole in the eighteenth groove, every the fixed first secondary shaft that is provided with of leading flank of first pole, the cover is equipped with the gear on the first secondary shaft, the gear with first secondary shaft rotates to be connected, be provided with first tooth on the lateral wall in first space, first tooth with gear engagement, the downside of third fixed block slides and is provided with the sliding block, and the sliding block is located the below of first filter screen to can shelter from the partial filter area of first filter screen, the downside of sliding block be provided with gear engagement's second tooth, the sixth groove has been seted up to the sliding block, the fixed first fixed block that is provided with of downside of third fixed block, the fixed second fixed block that is provided with of downside of first fixed block, first fixed block is in slide in the sixth groove, be provided with the seventh groove in the wall of first through-hole back front both sides, it is provided with first slider to slide in the seventh groove, the last lateral wall of first slider with the fixed third spring that is provided with between the tank bottom in seventh groove, the downside of first slider with the side fixed connection that goes up of third fixed block.

Preferably, the impurity cleaning and collecting mechanism comprises eighth grooves formed in two third fixing blocks, ninth grooves are formed in the third fixing blocks, the ninth grooves are communicated with the eighth grooves, a second slider is arranged in the ninth grooves in a sliding manner, a third slider is arranged in the eighth grooves in a sliding manner, the third slider is fixedly connected with the second slider, a push plate is fixedly arranged between the two third sliders and is positioned above the first filter screen, a tenth groove is formed in the push plate, an eleventh groove is formed in the tenth groove, a second shaft is arranged in the eleventh groove in a sliding manner, one end of a second rod is sleeved on the second shaft, the second rod is fixedly connected with the second shaft, a second sliding plate is arranged in the second groove in a sliding manner, and two fourth springs which are symmetrical in the front-back direction are fixedly arranged between the lower side surface of the second sliding plate and the lower side wall of the second groove, a fourth fixing block is fixedly arranged on the upper side face of the second sliding plate, a twelfth groove is formed in the fourth fixing block and communicated with the fourth groove, a third through hole with a forward opening is formed in the fourth fixing block, a thirteenth groove is formed in the fourth fixing block and is in butt joint with the seventeenth groove, and the upper portion of the thirteenth groove is hinged to the other end of the second rod.

Preferably, the impurity cleaning and collecting mechanism further comprises a collecting box disposed in the third groove, the collecting box is provided with a second space, a fourth sliding block is slidably disposed in the second space, the collecting box is provided with a fourteenth groove and a fifteenth groove, the fourteenth groove and the fifteenth groove are located on the front side of the second space, a fifth sliding block is slidably disposed in the fourteenth groove, the fifteenth groove is located on the lower side of the fourteenth groove, the fifteenth groove is communicated with the fourteenth groove, the fifth sliding block is in a trapezoid shape with a wide upper part and a narrow lower part, a third rod is slidably disposed in the fifteenth groove, the upper side surface of the third rod is fixedly connected with the lower side surface of the fifth sliding block, the collecting box is provided with a sixteenth groove, a sixth sliding block is slidably disposed in the sixteenth groove, and the upper side surface of the sixth sliding block is fixedly connected with the lower side surface of the third rod, the rear side surface of the sixth sliding block is fixedly connected with the front side surface of the fourth sliding block, the rear side wall of the fourteenth groove is provided with a sixth through hole, the upper part of the rear side wall of the second space is fixedly provided with a fifth fixed block, the fifth fixed block is provided with a fourth through hole, the fourth through hole is butted with the sixth through hole arranged on the left side wall of the fourteenth groove, a first sliding rod is arranged in the fourth through hole in a sliding manner, the front side surface of the first sliding rod is hemispherical, the rear side surface of the first sliding rod is fixedly provided with a sixth fixed block, a fifth spring is fixedly arranged between the sixth fixed block and the rear side surface of the fifth fixed block, the rear side wall of the second space is embedded with a second filter screen, the rear side wall of the second space is provided with a fifth through hole with a backward opening, the fifth through hole is communicated with the second space, and is also communicated with the first through hole, rotate between the lateral wall around the fifth through-hole and be connected with the third axle, the cover is equipped with the baffle on the third axle, the baffle with third axle fixed connection, the baffle seted up with the third axle is concentric and the radius is greater than the groove of third axle, the tank bottom in the groove of third axle with be provided with the torsional spring between the rear wall of baffle.

In summary, the invention has the following advantages: this device simple structure can increase drainage speed with filter screen drainage area grow automatically when discharge is too big, can also clear up the impurity on the filter screen when the filter screen is blockked up.

Drawings

FIG. 1 is a sectional view of a sewage treatment apparatus for adjusting the size of a filter according to the flow rate of water according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 2 at I;

FIG. 5 is an enlarged view of a portion of FIG. 1 at II;

FIG. 6 is an enlarged view of a portion of FIG. 1 at III;

FIG. 7 is an enlarged view of a portion of FIG. 1 at IV;

fig. 8 is a partial enlarged view of fig. 2 at V.

In the figure, a substrate 10; a second groove 11; a fourth spring 12; a second through hole 13; a second slide plate 14; a fourth fixing block 15; a twelfth slot 16; a third through hole 17; a thirteenth tank 18; a seventeenth groove 19; a fourth groove 20; a second lever 21; a push plate 22; a tenth groove 23; a buffer plate 24; a first groove 25; a first screen 26; a slider 27; a first fixing block 28; a collection tank 29; a fourteenth slot 30; a fifth slider 31; a third lever 32; a fifteenth groove 33; the second space 34; a sixth slider 36; a fourth slider 37; a second screen 38; a baffle 39; a first slide bar 40; a fifth fixing block 41; a fifth spring 42; a sixth fixing block 43; the first space 44; a third slider 45; a gear 46; a first lever 47; a sixth groove 49; a third fixing block 51; a first slider 52; the third spring 53; a seventh groove 54; the teeth 55; a first second shaft 56; a second slider 57; a ninth slot 58; an eighth groove 59; a fifth groove 60; a first spring 61; a first slide plate 62; a second arc-shaped block 63; a first arcuate block 64; an arc-shaped slot 65; a second spring 66; an eleventh slot 67; a first through hole 68; a third slot 69; a second shaft 70; a fifth through hole 71; a third shaft 72; a sixteenth slot 73; a fourth through hole 74; a first shaft 75; a second fixed block 76.

Detailed Description

As shown in fig. 1 and 2, a sewage treatment device for adjusting the size of a filter screen according to water flow comprises a base 10, wherein the base 10 is provided with a first through hole 68, the side wall of the base 10 is provided with two first spaces 44 which are symmetrical front and back with respect to the first through hole 68, the side wall of the base 10 is provided with two first grooves 25 which are symmetrical left and right with respect to the first through hole 68, the first grooves 25 are positioned above the first spaces 44, the first spaces 44 and the first grooves 25 are communicated with the first through hole 68, the side wall of the base 10 is provided with a second groove 11, the second groove 11 is positioned behind the first through hole 68, the side wall of the base 10 is provided with a third groove 69, the third groove 69 is positioned at the front side of the first through hole 68, the third groove 69 is communicated with the first through hole 68, the base 10 is provided with a second through hole 13, the second through hole 13 is positioned at the front side wall of the second groove 11, the base 10 is provided with a fourth groove 20, the fourth groove 20 is positioned at the upper side of the second groove 11, the fourth groove 20 is communicated with the second groove 11 and the first through hole 68, a seventeenth groove 19 is further formed in the side wall of the base body 10, the seventeenth groove 19 is located on the front side wall of the second groove 11 and located above the second through hole 13, and the seventeenth groove 19 is communicated with the first through hole 68;

two buffer mechanisms A01, the two buffer mechanisms A01 are bilaterally symmetrical about the first through hole 68, one end of each buffer mechanism A01 is arranged in the corresponding first groove 25, the other end of each buffer mechanism A01 is positioned in the corresponding first through hole 68, and the buffer mechanisms A01 are used for buffering water and other impurities;

the discharge control mechanism A02 is characterized in that the discharge control mechanism A02 is arranged in a space formed by the first space 44 and the first through hole 68, and the discharge control mechanism A02 is positioned on the lower side of the buffer mechanism A01 and is used for filtering impurities in water and controlling the discharge according to the water flow;

impurity clearance collection mechanism A03, impurity clearance collection mechanism A03 set up in first through-hole 68 and lie in the upside of discharge control mechanism A02, and two parts are located third groove 69 and second groove 11 around impurity clearance collection mechanism A03 respectively, and impurity clearance collection mechanism A03 is used for clearing up the impurity on the filter screen and collects.

Referring to fig. 1 and 5, the buffering mechanism a01 includes a first shaft 75 rotatably disposed between the front and rear side walls of the first groove 25, the first shaft 75 is sleeved with the buffer plate 24, the buffer plate 24 is fixedly connected with the first shaft 75, the buffer plate 24 is provided with a fifth groove 60, a first sliding plate 62 is slidably disposed in the fifth groove 60, a plurality of first springs 61 are fixedly and uniformly disposed between the bottoms of the first sliding plate 62 and the fifth groove 60, a first arc-shaped block 64 is fixedly disposed on a side surface of the first groove 25 away from the first through hole 68, an arc-shaped groove 65 is disposed on the first arc-shaped block 64, a second arc-shaped block 63 is slidably disposed in the arc-shaped groove 65, a second spring 66 is fixedly disposed between the lower side surface of the second arc-shaped block 63 and the bottom of the arc-shaped groove 65, and the upper side surface of the second arc-shaped block 63 is fixedly connected with the lower side surface of the buffer plate 24.

Referring to fig. 1, 3 and 5-6, the displacement control mechanism a02 includes two third fixed blocks 51 respectively slidably disposed in the two first spaces 44, a first filter screen 26 is fixedly disposed between the two third fixed blocks 51, an eighteenth groove is disposed on a rear side surface of each third fixed block 51, a first rod 47 is fixedly disposed in the eighteenth groove, a first second shaft 56 is fixedly disposed on a front side surface of each first rod 47, a gear 46 is sleeved on the first second shaft 56, the gear 46 is rotatably connected to the first second shaft 56, a first tooth 55 is disposed on a side wall of the first space 44, the first tooth 55 is engaged with the gear 46, a sliding block 27 is slidably disposed on a lower side surface of each third fixed block 51, the sliding block 27 is located below the first filter screen 26 and can block a part of the filter area of the first filter screen 26, a second tooth engaged with the gear 46 is disposed on a lower side surface of the sliding block 27, the sliding block 27 is provided with a sixth groove 49, a first fixed block 28 is fixedly arranged on the lower side surface of a third fixed block 51, a second fixed block 76 is fixedly arranged on the lower side surface of the first fixed block 28, the first fixed block 28 slides in the sixth groove 49, seventh grooves 54 are formed in the rear and front two side walls of the first through hole 68, a first sliding block 52 is slidably arranged in the seventh grooves 54, a third spring 53 is fixedly arranged between the upper side wall of the first sliding block 52 and the bottom of the seventh groove 54, and the lower side surface of the first sliding block 52 is fixedly connected with the upper side surface of the third fixed block 51.

Referring to fig. 2-3, the impurity cleaning and collecting mechanism a03 includes an eighth groove 59 disposed in two third fixed blocks 51, a ninth groove 58 is further disposed in the third fixed blocks 51, the ninth groove 58 is communicated with the eighth groove 59, a second slider 57 is slidably disposed in the ninth groove 58, a third slider 45 is slidably disposed in the eighth groove 59, the third slider 45 is fixedly connected to the second slider 57, a push plate 22 is fixedly disposed between the two third sliders 45, the push plate 22 is located above the first filter screen 26, a tenth groove 23 is disposed in the push plate 22, an eleventh groove 67 is disposed in the tenth groove 23, a second shaft 70 is slidably disposed in the eleventh groove 67, one end of a second rod 21 is sleeved on the second shaft 70, the second rod 21 is fixedly connected to the second shaft 70, a second sliding plate 14 is slidably disposed in the second groove 11, two fourth springs 12 are fixedly disposed between a lower side surface of the second sliding plate 14 and a lower side wall of the second groove 11, a fourth fixing block 15 is fixedly arranged on the upper side face of the second sliding plate 14, a twelfth groove 16 is formed in the fourth fixing block 15, the twelfth groove 16 is communicated with a fourth groove 20, a third through hole 17 with a forward opening is formed in the fourth fixing block 15, a thirteenth groove 18 is formed in the fourth fixing block 15, the thirteenth groove 18 is in butt joint with a seventeenth groove 19, and the upper portion of the thirteenth groove 18 is hinged to the other end of the second rod 21.

Referring to fig. 2-4, the impurity cleaning and collecting mechanism a03 further includes a collecting box 29 disposed in the third slot 69, the collecting box 29 defines a second space 34, a fourth slider 37 is slidably disposed in the second space 34, the collecting box 29 defines a fourteenth slot 30 and a fifteenth slot 33, the fourteenth slot 30 and the fifteenth slot 33 are disposed in front of the second space 34, a fifth slider 31 is slidably disposed in the fourteenth slot 30, the fifteenth slot 33 is disposed under the fourteenth slot 30, the fifteenth slot 33 is communicated with the fourteenth slot 30, the fifth slider 31 is a trapezoid with a wide top and a narrow bottom, a third rod 32 is slidably disposed in the fifteenth slot 33, an upper side of the third rod 32 is fixedly connected to a lower side of the fifth slider 31, the collecting box 29 defines a sixteenth slot 73, a sixth slider 36 is slidably disposed in the sixteenth slot 73, an upper side of the sixth slider 36 is fixedly connected to a lower side of the third rod 32, the rear side surface of the sixth slider 36 is fixedly connected with the front side surface of the fourth slider 37, the rear side wall of the fourteenth slot 30 is provided with a sixth through hole, the upper part of the rear side wall of the second space 34 is fixedly provided with a fifth fixed block 41, the fifth fixed block 41 is provided with a fourth through hole 74, the fourth through hole 74 is butted with the sixth through hole formed on the left side wall of the fourteenth slot 30, the fourth through hole 74 is internally provided with a first slide bar 40 in a sliding manner, the front side surface of the first slide bar 40 is hemispherical, the rear side surface of the first slide bar 40 is fixedly provided with a sixth fixed block 43, a fifth spring 42 is fixedly arranged between the sixth fixed block 43 and the rear side surface of the fifth fixed block 41, the rear side wall of the second space 34 is embedded with a second filter screen 38, the rear side wall of the second space 34 is provided with a fifth through hole 71 with a backward opening, the fifth through hole 71 is communicated with the second space 34, and the fifth through hole 71 is further communicated with the first through hole 68, a third shaft 72 is rotatably connected between the front side wall and the rear side wall of the fifth through hole 71, a baffle plate 39 is sleeved on the third shaft 72, the baffle plate 39 is fixedly connected with the third shaft 72, a groove which is concentric with the third shaft 72 and has a radius larger than that of the third shaft 72 is formed in the baffle plate 39, and a torsion spring is arranged between the groove bottom of the groove of the third shaft 72 and the rear side wall of the baffle plate 39.

The working principle of the sewage treatment device for adjusting the size of the filter screen according to the water flow is as follows:

during the use, rivers flow in from first through-hole 68 upper end, rivers striking first slide 62, first slide 62 slides down and compress first spring 61 in fifth groove 60, drive buffer board 24 simultaneously and use primary shaft 75 to rotate as the center of rotation, thereby buffer board 24 drives second arc piece 63 and slides in arc wall 65 and compress second spring 66, buffer gear A01 can cushion water and impurity when the whereabouts, prevent that it from directly impacting first filter screen 26, extension first filter screen 26 life.

When water falls through the first filter screen 26, impurities are left on the first filter screen 26, when the water flow rate increases, the resultant force of the impact force and the gravity of the water on the first filter screen 26 increases, the first filter screen 26 is driven to move downwards, and the third fixing block 51 is driven to move downwards, taking the left side as an example, the third fixing block 51 drives the first slider 52 to move downwards so as to stretch the third spring 53, the third fixing block 51 drives the second slider 57 to move downwards, the second slider 57 drives the push plate 22 to move downwards through the third slider 45, the push plate 22 moves downwards so as to enable the second shaft 70 to slide upwards in the eleventh groove 67, the third fixing block 51 drives the second shaft 56 to move downwards through the first rod 47, the second shaft 56 drives the gear 46 to move downwards, because the gear 46 is meshed with the first tooth 55, the gear 46 rotates, and because the gear 46 is meshed with the second tooth on the slide block 27 anticlockwise, the gear 46 drives the sliding block 27 to move leftwards, so that the area of the first filter screen 26 is increased, and the drainage speed can be increased, because the second fixing block 76 is arranged on the lower side surface of the first fixing block 28, the sliding block 27 cannot fall off, when the first filter screen 26 is blocked and water cannot pass through, water can be accumulated above the first filter screen 26, water can flow into the twelfth groove 16 when the liquid level exceeds the fourth groove 20, when the accumulated amount of water in the twelfth groove 16 is increased, the fourth fixing block 15 can be driven to move downwards, the fourth fixing block 15 drives the second sliding plate 14 to move downwards so as to compress the fourth spring 12, the fourth spring 12 is compressed to accumulate energy, the fourth fixing block 15 moves downwards to drive the third through hole 17 on the fourth fixing block 15 to move downwards, until the third through hole 17 is butted with the second through hole 13, water in the twelfth groove 16 flows to the lower part of the first through hole 68 through the third through hole 17 and the second through hole 13, the fourth fixing block 15 is restored by the elastic force of the fourth spring 12 when water flows out. When the fourth fixing block 15 moves downwards, the second rod 21 hinged on the side wall of the thirteenth groove 18 drives the second shaft 70 to slide downwards in the eleventh groove 67 until the second rod abuts against the lower side wall of the eleventh groove 67, the second rod 21 pushes the push plate 22 to move forwards to push impurities on the upper side surface of the first filter screen 26 to the second space 34, when the impurities pass through the baffle 39, the baffle 39 is pushed to rotate around the third shaft 72, so that the impurities enter the second space 34, when the baffle 39 rotates to a certain angle, the spherical end surface at the front end of the baffle 39 abuts against the sixth fixing block 43 to push the sixth fixing block 43 to move forwards, and the fifth spring 42 is compressed, the sixth fixing block 43 drives the first sliding rod 40 to move forwards, the spherical end surface at the front end of the first sliding rod 40 abuts against the rear side surface of the fifth sliding block 31, because the rear side surface of the fifth sliding block 31 is arranged to be high at the back and low front, when the front end of the first sliding rod 40 abuts against the fifth sliding block 31, the fifth sliding block 31 is driven to move upwards, the fifth sliding block 31 drives the third rod 32 to move upwards, the third rod 32 drives the fourth sliding block 37 to move upwards through the sixth sliding block 36, when the push plate 22 pushes the impurities on the upper side surface of the first filter screen 26 into the second space 34, the first filter screen 26 is not blocked, water does not enter the fourth fixing block 15, the fourth fixing block 15 is reset by the elastic force of the fourth spring 12 so as to pull the push plate 22 to reset through the second rod 21, at this time, the baffle 39 is reset by the torsion force of the torsion spring inside the baffle to continuously keep the vertical state, when the sixth fixing block 43 loses the pushing force of the stopper 39 and moves backward by the elastic force of the fifth spring 42, thereby moving the first slide bar 40 backward, causing the fifth slider 31 to move downward without the pushing force of the first slide bar 40, and thus moving the fourth slider 37 downward via the third rod 32 and the sixth slider 36. When impurities enter the second space 34 at every time, the fourth sliding block 37 is driven to move up and down, so that the impurities in the second space 34 are driven to move up and down to prevent the impurities from blocking the second filter screen 38, and water flowing into the second space 34 cannot flow out when the baffle 39 is opened.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be regarded as falling within the protection scope of the patent of the present invention.

Claims

1. A sewage treatment device for adjusting the size of a filter screen according to water flow comprises a base body (10), and is characterized in that: the base body (10) is provided with a first through hole (68), the side wall of the base body (10) is provided with two first spaces (44) which are symmetrical in front and back relative to the first through hole (68), the side wall of the base body (10) is provided with two first grooves (25) which are symmetrical in left and right relative to the first through hole (68), the first grooves (25) are positioned above the first spaces (44), the first spaces (44) and the first grooves (25) are communicated with the first through hole (68), the side wall of the base body (10) is provided with a second groove (11), the second groove (11) is positioned behind the first through hole (68), the side wall of the base body (10) is provided with a third groove (69), the third groove (69) is positioned at the front side of the first through hole (68), the third groove (69) is communicated with the first through hole (68), and the base body (10) is provided with a second through hole (13), the second through hole (13) is located on the front side wall of the second groove (11), the base body (10) is provided with a fourth groove (20), the fourth groove (20) is located on the upper side of the second groove (11), the fourth groove (20) is communicated with the second groove (11) and the first through hole (68), the side wall of the base body (10) is further provided with a seventeenth groove (19), the seventeenth groove (19) is located on the front side wall of the second groove (11) and located above the second through hole (13), and the seventeenth groove (19) is communicated with the first through hole (68);

two buffer mechanisms (A01), the two buffer mechanisms (A01) are bilaterally symmetrical about the first through hole (68), one end of the buffer mechanism (A01) is arranged in the corresponding first groove (25), the other end is positioned in the first through hole (68), and the buffer mechanism (A01) is used for buffering water and other impurities;

the discharge control mechanism (A02), the discharge control mechanism (A02) is arranged in the space formed by the first space (44) and the first through hole (68), and the discharge control mechanism (A02) is positioned at the lower side of the buffer mechanism (A01) and is used for filtering impurities in water and controlling the discharge capacity according to the water flow;

the impurity cleaning and collecting mechanism (A03), the impurity cleaning and collecting mechanism (A03) is arranged in the first through hole (68) and is positioned at the upper side of the discharge control mechanism (A02), the front part and the rear part of the impurity cleaning and collecting mechanism (A03) are respectively positioned in the third groove (69) and the second groove (11), and the impurity cleaning and collecting mechanism (A03) is used for cleaning and collecting impurities on a filter screen;

buffer gear (A01) is including rotating first axle (75) that sets up between lateral wall around first groove (25), the cover is equipped with buffer board (24) on first axle (75), buffer board (24) with first axle (75) fixed connection, fifth groove (60) have been seted up in buffer board (24), it is provided with first slide (62) to slide in fifth groove (60), fixed and evenly be provided with a plurality of first spring (61) between first slide (62) and fifth groove (60) tank bottom, keeping away from of first groove (25) a side of first through-hole (68) is fixed and is provided with first arc piece (64), arc wall (65) have been seted up in first arc piece (64), it is provided with second arc piece (63) to slide in arc wall (65), the downside of second arc piece (63) with fixed second spring (66) is provided with between the tank bottom of arc wall (65), the upper side surface of the second arc-shaped block (63) is fixedly connected with the lower side surface of the buffer plate (24);

the discharge control mechanism (A02) comprises two third fixed blocks (51) which are respectively arranged in a sliding manner in the first space (44), a first filter screen (26) is fixedly arranged between the third fixed blocks (51), an eighteenth groove is formed in the rear side surface of each third fixed block (51), a first rod (47) is fixedly arranged in the eighteenth groove, a first second shaft (56) is fixedly arranged on the front side surface of each first rod (47), a gear (46) is sleeved on each first second shaft (56), the gear (46) is rotatably connected with the first second shaft (56), a first tooth (55) is arranged on one side wall of the first space (44), the first tooth (55) is meshed with the gear (46), a sliding block (27) is arranged on the lower side surface of each third fixed block (51) in a sliding manner, and the sliding block (27) is positioned below the first filter screen (26), and can shade part of the filtering area of the first filtering net (26), the lower side surface of the sliding block (27) is provided with second teeth meshed with the gear (46), a sixth groove (49) is formed in the sliding block (27), a first fixing block (28) is fixedly arranged on the lower side surface of the third fixing block (51), a second fixed block (76) is fixedly arranged on the lower side surface of the first fixed block (28), the first fixing block (28) slides in the sixth groove (49), a seventh groove (54) is arranged in the rear and front two side walls of the first through hole (68), a first sliding block (52) is arranged in the seventh groove (54) in a sliding manner, a third spring (53) is fixedly arranged between the upper side wall of the first sliding block (52) and the bottom of the seventh groove (54), the lower side surface of the first sliding block (52) is fixedly connected with the upper side surface of the third fixed block (51);

the impurity cleaning and collecting mechanism (A03) comprises eight grooves (59) formed in two third fixing blocks (51), a ninth groove (58) is further formed in each third fixing block (51), each ninth groove (58) is communicated with each eighth groove (59), a second sliding block (57) is arranged in each ninth groove (58) in a sliding mode, a third sliding block (45) is arranged in each eighth groove (59) in a sliding mode, each third sliding block (45) is fixedly connected with each second sliding block (57), a push plate (22) is fixedly arranged between the two third sliding blocks (45), each push plate (22) is located above the corresponding first filter screen (26), a tenth groove (23) is formed in each push plate (22), an eleventh groove (67) is formed in each tenth groove (23), a second shaft (70) is arranged in each eleventh groove (67) in a sliding mode, and one end of a second rod (21) is sleeved on each second shaft (70), the second rod (21) is fixedly connected with the second shaft (70), a second sliding plate (14) is arranged in the second groove (11) in a sliding manner, two fourth springs (12) which are symmetrical in the front-back direction are fixedly arranged between the lower side surface of the second sliding plate (14) and the lower side wall of the second groove (11), a fourth fixed block (15) is fixedly arranged on the upper side surface of the second sliding plate (14), a twelfth groove (16) is formed in the fourth fixing block (15), the twelfth groove (16) is communicated with the fourth groove (20), the fourth fixing block (15) is provided with a third through hole (17) with a forward opening, a thirteenth groove (18) is formed in the fourth fixing block (15), the thirteenth groove (18) is in butt joint with the seventeenth groove (19), the upper part of the thirteenth groove (18) is hinged with the other end of the second rod (21);

the impurity cleaning and collecting mechanism (A03) further comprises a collecting box (29) arranged in the third groove (69), the collecting box (29) is provided with a second space (34), a fourth sliding block (37) is arranged in the second space (34) in a sliding manner, the collecting box (29) is provided with a fourteenth groove (30) and a fifteenth groove (33), the fourteenth groove (30) and the fifteenth groove (33) are positioned on the front side of the second space (34), a fifth sliding block (31) is arranged in the fourteenth groove (30) in a sliding manner, the fifteenth groove (33) is positioned on the lower side of the fourteenth groove (30), the fifteenth groove (33) is communicated with the fourteenth groove (30), the fifth sliding block (31) is in a trapezoid shape with a wide upper part and a narrow lower part, a third rod (32) is arranged in the fifteenth groove (33) in a sliding manner, and the upper side surface of the third rod (32) is fixedly connected with the lower side surface of the fifth sliding block (31), a sixteenth groove (73) is formed in the collection box (29), a sixth sliding block (36) is arranged in the sixteenth groove (73) in a sliding manner, the upper side face of the sixth sliding block (36) is fixedly connected with the lower side face of the third rod (32), the rear side face of the sixth sliding block (36) is fixedly connected with the front side face of the fourth sliding block (37), a sixth through hole is formed in the rear side wall of the fourteenth groove (30), a fifth fixing block (41) is fixedly arranged on the upper portion of the rear side wall of the second space (34), a fourth through hole (74) is formed in the fifth fixing block (41), the fourth through hole (74) is in butt joint with the sixth through hole formed in the left side wall of the fourteenth groove (30), a first sliding rod (40) is arranged in the fourth through hole (74) in a sliding manner, the front side face of the first sliding rod (40) is hemispherical shape, a sixth fixing block (43) is fixedly arranged on the rear side face of the first sliding rod (40), a fifth spring (42) is fixedly arranged between the rear side surfaces of the sixth fixed block (43) and the fifth fixed block (41), a second filter screen (38) is embedded in the rear side wall of the second space (34), a fifth through hole (71) with a backward opening is formed in the rear side wall of the second space (34), the fifth through hole (71) communicating with the second space (34), the fifth through hole (71) further communicating with the first through hole (68), a third shaft (72) is rotatably connected between the front side wall and the rear side wall of the fifth through hole (71), the third shaft (72) is sleeved with a baffle (39), the baffle (39) is fixedly connected with the third shaft (72), the baffle (39) is provided with a groove which is concentric with the third shaft (72) and has a radius larger than that of the third shaft (72), a torsion spring is arranged between the bottom of the groove of the third shaft (72) and the rear side wall of the baffle plate (39).