CN113605493B - Efficient pit water diversion system - Google Patents

Abstract

The utility model relates to a technical field of pit engineering especially relates to a high-efficient pit diversion system, and it includes irrigation canals and ditches, pipeline and pit, the one end connecting tube of irrigation canals and ditches, the pipeline is kept away from the one end of irrigation canals and is let in the middle part of pit, the gate that sets up in the irrigation canals and ditches, the inside of pipeline is provided with two at least diversion devices along the length direction of pipeline, diversion device includes the pivot and sets up four blades in the pivot, the pivot level rotates and connects in the pipeline, four blade evenly distributed is on the perisporium of pivot, the tip of pivot is provided with the elastic positioning device that is used for intermittent type location pivot, the pivot passes through the blade shutoff pipeline that elastic positioning device located the point and is the pivot. The method has the effect of reducing the phenomenon that farmed fishes in the pit swim out of the pit along the pipeline.

Description

Efficient pit water diversion system

Technical Field

The application relates to the technical field of pit engineering, in particular to a high-efficiency pit water diversion system.

Background

The pit engineering is to reform the original basic pit, and improve the environment of the pit by dredging, trimming, diversion and the like, especially for the pit after diversion, the water quantity in the pit is kept at a proper depth, so that the pit reaches the condition for artificial cultivation, the economic benefit is improved, and the local living environment is improved.

When the water is drained into the pit, water flows into the pit from the river channel through the canal and the pipeline for use, and one end of the pipeline connected to the pit is positioned at a position about half of the depth of the pit, so that river water can flow into the pit conveniently, and enough water storage space is reserved for the pit on the one hand, and the situation that pit overflows in rainy seasons is reduced.

However, in the above structure, the inventor believes that when the water level in the pit is as high as the position where the pipeline is buried, farmed fish in the pit may swim out of the pit along the pipeline.

Disclosure of Invention

In order to reduce the situation that farmed fishes in the pit swim out of the pit along a pipeline, the application provides a high-efficiency pit water diversion system.

The application provides a high-efficient pit pool diversion system, adopts following technical scheme:

the utility model provides a high-efficient pit pond drainage system, includes irrigation canals and ditches, pipeline and pit pond, the one end connection pipeline of irrigation canals and ditches, the pipeline is kept away from the one end of irrigation canals and is let in the middle part of pit pond, the gate that sets up in the irrigation canals and ditches, the inside of pipeline is provided with two at least diversion devices along the length direction of pipeline, diversion device includes the pivot and sets up four blades in the pivot, the pivot level rotates to be connected in the pipeline, four blade evenly distributed is on the perisporium of pivot, the tip of pivot is provided with the elastic positioning device that is used for intermittent type location pivot, the pivot passes through the blade shutoff pipeline that elastic positioning device located the point and be the pivot.

Through adopting above-mentioned technical scheme, during the use, set up the diversion device in the pipeline, the diversion device includes the pivot and is provided with four epaxial blades, when the latter half of pipeline has the rivers, rivers promote the blade rotation, the blade can be with the direction introduction of pipeline to the pit, the pivot tip is provided with elastic positioning device and can makes blade intermittent type rotate the setpoint, the setpoint is the position of blade shutoff pipeline, and then the aquaculture fish in the pipeline receives the condition that the blade blockked the reduction to visit the pit, simultaneously when the water in the pit is more, the blade is in the position of shutoff, when pipeline tip fills water, because the automatic shutoff pipeline of blade, also can reduce the aquaculture fish in the pit and follow the pipeline and visit.

Preferably, the end of the rotating shaft is provided with a mounting seat, the mounting seat is fixed on the inner wall of the pipeline, the end of the rotating shaft is fixedly provided with a square column, four positioning notches matched with the elastic positioning device are formed in the square column, the elastic positioning device is arranged in the mounting seat, and the positioning notches are located in the middle positions of the four side walls of the square column.

Through adopting above-mentioned technical scheme, four lateral wall intermediate positions of square post offer with elastic positioning device complex location breach, when the blade rotated, elastic positioning device released the blade earlier and rotated 45 degrees back to the blade, and elastic positioning device only can cooperate in the next location breach, and then the automatic intermittent type nature rotation of blade along same direction of being convenient for.

Preferably, the elastic positioning device comprises a spring and a push rod, the push rod is in sliding fit on the mounting seat, one end of the spring is abutted on the mounting seat, the other end of the spring is abutted on the push rod, and the end part of the push rod is used for being matched on the square column.

Through adopting above-mentioned technical scheme, the one end butt of spring is on the ejector pin, and the effort of spring is used for making ejector pin butt on square post, and then makes ejector pin and location breach cooperation, can also make the tip of ejector pin promote the blade to vertical direction rotation and block in the position of setpoint.

Preferably, the blade is provided with a hollow cylinder perpendicular to the rotating shaft, and a sphere is placed in the hollow cylinder.

Through adopting above-mentioned technical scheme, the blade is provided with the spheroid, and when the blade was rotated down by horizontal position when the blade, the spheroid in the blade can promote the blade to the position rotation that exceeds 45 degrees, and then the rotation of the position of the next setpoint of pivot of being convenient for.

Preferably, a partition wall is arranged in the ditch, a sedimentation tank is formed on one side of the partition wall close to the gate, a clean water tank is formed on the other side of the partition wall, a filter screen plate next to the partition wall is arranged above the clean water tank, and filter cloth is paved on the upper surface of the filter screen plate.

Through adopting above-mentioned technical scheme, one side of dividing wall is the sedimentation tank, and the sedimentation tank can be once clean to entering into the water in the irrigation canals and ditches, still need pass through the filter cloth on the filter screen plate when arriving the clean water pond from the sedimentation tank again simultaneously, and then make to carry out the aquatic in the pit and have less impurity, and the filter cloth is laid on the filter screen plate simultaneously and is convenient to the change of filter cloth.

Preferably, the partition wall is provided with a plurality of bars, the bars are uniformly distributed along the length direction of the partition wall, and the bars are vertically arranged.

Through adopting above-mentioned technical scheme, the pin is vertical to be set up, when the top of sedimentation tank had the floater, the inside water of sedimentation tank can upwards be with the floater along the pin to have sufficient space in the messenger sedimentation tank to stop the debris of flotation, flowing water influence is less in the clean water pond in the sedimentation tank simultaneously.

Preferably, the gate comprises two mounting grooves and a water drain plate, the two mounting grooves are oppositely arranged, the mounting grooves are fixed on the side wall of the ditch, the water drain plate is matched in the mounting grooves, a water flow hole penetrating through the water drain plate is formed in the water drain plate, a baffle is arranged in the water flow hole, the baffle is vertically and slidably matched on the water drain plate, and a screw rod for adjusting the opening of the water flow hole of the baffle is connected to the baffle through threads.

Through adopting above-mentioned technical scheme, set up the water flow hole on the drain bar, set up the drain bar in the water flow hole, the staff rotates the aperture of screw rod to the water flow hole of baffle can be adjusted to make the baffle control follow the speed of water flow in the water flow hole, and then control the volume of leading water to the pit pool in.

Preferably, a plurality of water baffles are arranged below the water draining plate, and are sequentially arranged in the mounting groove from top to bottom, and the height of the water baffles is smaller than that of the water draining plate.

Through adopting above-mentioned technical scheme, the drain pan below sets up a plurality of breakwaters, and when the water level was changed, through the below increase or the reduction breakwaters at the drain pan can make the rivers hole on the drain pan be in the liquid level position of water level, reduces the influence of water pressure to rivers, and the height of drain pan is greater than the height of breakwaters simultaneously, makes at least can increase or reduce a breakwaters at every turn.

Preferably, the upper and lower edges of the water baffle are arranged in a folded line shape.

Through adopting above-mentioned technical scheme, the edge of breakwater sets up into the broken line shape, when the breakwater placed from top to bottom, can have higher leakproofness when the breakwater edge interconnect of broken line.

Preferably, a stair used for extending to the position of the filter screen plate is arranged above the clean water tank, and the stair is matched with the filter screen plate to block the upper part of the clean water tank.

Through adopting above-mentioned technical scheme, the top in clean water basin sets up the stair, makes things convenient for the staff to enter into the position of filter screen plate, conveniently changes the filter cloth on the filter screen plate, also can cooperate the shutoff clean water basin of filter screen plate simultaneously, reduces debris and falls into in the clean water basin.

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

1. when water flows through the lower half part of the pipeline, the water flows push the blades to rotate, the blades can introduce the water of the pipeline to the direction of the pit, the elastic positioning device is arranged at the end part of the rotating shaft, so that the blades can intermittently rotate to positioning points, the positioning points are the positions of the blades for plugging the pipeline, and the situation that farmed fishes in the pipeline are blocked by the blades and swim out of the pit is reduced;

2. positioning gaps are formed in the middle positions of the four side walls of the square column, and when the blade rotates, the elastic positioning device releases the blade until the blade rotates for 45 degrees, and then the elastic positioning device can only be matched into the next positioning gap;

3. the water discharging plate is arranged in the water flow hole, and a worker rotates the screw rod to adjust the opening of the baffle plate to the water flow hole, so that the baffle plate controls the speed of water flow in the water flow hole, and further controls the water diversion amount into the pit.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of the internal structure of a trench according to an embodiment of the present disclosure;

FIG. 3 is an enlarged schematic view of a portion A of FIG. 2;

FIG. 4 is a partially enlarged schematic illustration of portion B of FIG. 1;

FIG. 5 is a schematic structural view of a water diversion device in an embodiment of the present application;

fig. 6 is a schematic view of a mounting base in a cut-away configuration in an embodiment of the present application.

Reference numerals illustrate: 1. a trench; 11. a gate; 111. a mounting groove; 112. a water baffle; 113. a drain plate; 114. a trash bar; 115. a baffle; 116. a screw; 117. a hand wheel; 12. a dividing wall; 121. a stop lever; 13. a sedimentation tank; 14. a clean water tank; 141. a filter screen plate; 15. stairs; 2. a pipe; 3. a water diversion device; 31. a rotating shaft; 32. a mounting base; 33. a blade; 331. a sphere; 332. a hollow cylinder; 34. square columns; 341. positioning the notch; 4. an elastic positioning device; 41. a push rod; 42. a spring; 43. a roller; 44. and a guide hole.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a high-efficiency pit water diversion system. Referring to fig. 1, the efficient pit water diversion system comprises a ditch 1 and a pipeline 2, wherein the pipeline 2 is made of concrete, the pipeline 2 is buried in the lower part of a road surface, the pipeline 2 is laid in a straight line, one end of the pipeline 2 is communicated with the ditch 1, the other end of the pipeline extends to the pit, one end of the pipeline 2 is connected with the pit and is positioned at a half position of the pit depth, the water level in the pit is positioned below the central line of the pipeline 2 under the normal condition, and the water level in the pit may exceed the pipeline 2 and reach the upper half position of the pit in rainy days. One end of the pipeline 2 far away from the pit is communicated with the ditch 1, one end of the ditch 1 far away from the pipeline 2 is used for being connected with a river channel, and when fish are cultivated in the pit, the water level in the pit is kept by water introduced into the river channel through the ditch 1.

Referring to fig. 1, a gate 11 is arranged in a ditch 1, a partition wall 12 is arranged at intervals on one side of the gate 11 close to a pipeline 2, a sedimentation tank 13 is formed at a position between the partition wall 12 and the gate 11, a clean water tank 14 is formed on one side of the partition wall 12 close to the pipeline 2, water flow enters the sedimentation tank 13 through the gate 11, overflows into the clean water tank 14 from the upper side of the partition wall 12, one side of the clean water tank 14 is communicated with the pipeline 2, so that water in the clean water tank 14 is introduced into the pit through the pipeline 2, and water flow in the clean water tank 14 is controlled through the gate 11.

Referring to fig. 2 and 3, the gate 11 includes a mounting groove 111, a water baffle 112 and a water drain plate 113, the cross section of the mounting groove 111 is U-shaped, the mounting groove 111 is vertically arranged, the mounting groove 111 has two and opposite openings, the mounting groove 111 is fixed on opposite side walls of the ditch 1, the water baffle 112 has a plurality of water baffles, two ends of the water baffle 112 are slidably matched in the corresponding mounting groove 111, the water baffle 112 is matched with the mounting groove 111 to control the water quantity entering the ditch 1, the upper side and the lower side of the water baffle 112 are respectively arranged in a folded line shape, and when the water baffles 112 are vertically arranged in the mounting groove 111, the water baffle 112 above and the water baffle 112 below are mutually spliced, so that the water baffle effect of the water baffle 112 is better. The water discharge plate 113 is fitted with the water baffle 112, and the water discharge plate 113 is placed on the uppermost water baffle 112. The height of the water discharging plate 113 is larger than that of the water blocking plates 112, the position of the water discharging plate 113 is located at the position of the water level of river water in a river channel, and when the water level in the river channel changes, the water discharging plate 113 is located at the position of controlling water flow by taking out and putting in different numbers of the water blocking plates 112. The water drain plate 113 is provided with a water flow hole penetrating through the water drain plate 113, the water flow hole is positioned below the water level in the river channel, and the water flow hole is used for feeding water into the ditch 1. The end of the water flow hole, which is opposite to the ditch 1, is provided with a plurality of vertical and uniformly arranged impurity blocking rods 114, and the impurity blocking rods 114 are used for reducing larger impurities from entering the sedimentation tank 13.

Referring to fig. 2 and 3, a baffle 115 is provided at the middle of the water flow hole, the baffle 115 is vertically slidably fitted inside the water discharge plate 113, the baffle 115 is parallel to the water discharge plate 113, and the baffle 115 is connected with a screw 116 for driving the baffle 115 to slide up and down, the screw 116 is rotatably connected to the water discharge plate 113, the screw 116 is threadedly connected to the baffle 115, and the screw 116 is vertically provided. When the screw 116 is rotated, the baffle 115 slides in the vertical direction, so that the baffle 115 can control the opening degree of the water flow hole, and can intercept the water flow hole when the baffle 115 completely closes the water flow hole. The upper end of the screw 116 extends out from the upper part of the water discharging plate 113 and is fixedly connected with a hand wheel 117, so that a worker can conveniently stand on the water discharging plate 113 to operate the hand wheel 117, and the screw 116 is rotated to adjust the position of the baffle 115, so that the flow of water flowing into the ditch 1 is controlled.

Referring to fig. 2, a plurality of bars 121 are fixedly provided at the upper portion of the dividing wall 12, the bars 121 are vertically arranged, and the bars 121 are uniformly arranged along the length direction of the dividing wall 12, the distance between two adjacent bars 121 is smaller than the distance between two adjacent bars 114, so that the floating matters entering the sedimentation tank 13 are further filtered, more floating matters can be accumulated by the vertically arranged bars 121, the blocking to the water flow is smaller, and meanwhile, heavier sundries can be deposited in the sedimentation tank 13, so that the water overflowing the dividing wall 12 and entering the clean water tank 14 contains fewer sundries.

Referring to fig. 2, a filter screen plate 141 is disposed above the clean water tank 14, and the filter screen plate 141 is inclined so as to be inclined downward as it extends from a side close to the partition wall 12 to a side far from the partition wall 12. The upper surface of the screen plate 141 is used for laying filter cloth, and the screen plate 141 is disposed against the dividing wall 12 below the highest point of the dividing wall 12. When water overflows from one side of the sedimentation tank 13, the water reaches the upper part of the filter screen plate 141, and is filtered through the filter cloth in the downward process of the filter screen plate 141, so that impurities in the water are further filtered through the filter cloth, and further, the blockage of the impurities to the pipeline 2 is reduced, and the maintenance is convenient. The stair 15 is arranged above the clean water tank 14, the lower end of the stair 15 extends to the edge of the filter screen plate 141, and the stair 15 and the filter screen plate 141 are matched to block the whole upper part of the clean water tank 14, so that sundries are prevented from falling into the clean water tank 14. When the impurities on the filter cloth are more, the staff can enter the position of the filter screen plate 141 from the stairs 15 arranged in the ditch 1, roll up the filter cloth with the impurities, and then spread another filter cloth.

Referring to fig. 1, at least two water diversion devices 3, preferably three, four or five water diversion devices are arranged in the pipeline 2, and four water diversion devices 3 are arranged in the pipeline 2, so that water can flow into the pit in the pipeline 2 freely, and farmed fish in the pit cannot pass through the pipeline 2.

Referring to fig. 4 and 5, the water diversion device 3 includes a rotation shaft 31, a mounting seat 32 and four blades 33, the blades 33 are semicircular, the four blades 33 are uniformly distributed on the peripheral wall of the rotation shaft 31, the blades 33 are fixed on the rotation shaft 31, and the edges of the blades 33 far from the rotation shaft 31 are matched with the inner wall of the pipeline 2. The two mounting seats 32 are fixed on the inner wall of the pipeline 2 relatively at the same horizontal height, two ends of the rotating shaft 31 are rotatably connected to the mounting seats 32, the rotating shaft 31 is positioned at the horizontal position and the vertical position of the pipeline 2, when water flow is required to pass through the pipeline 2, the water flow pushes the blades 33, the blades 33 rotate, and then the water flow is introduced into the pit from the lower part of the pipeline 2. When the blades 33 rotate to the vertical position, the upper blade 33 and the lower blade 33 plug the pipeline 2, so that the cultured fishes can be prevented from flowing through the pipeline 2; meanwhile, when the water quantity in the pit is large, the water level exceeds the pipeline 2, and as the lower blade 33 is subjected to the water pressure in the pit and the upper blade 33 is subjected to the water pressure in the pit, the blade 33 cannot reversely rotate, so that the water diversion device 3 can automatically prevent the farmed fish in the pit from swimming out of the pipeline 2 when the rotation is stopped.

Referring to fig. 4 and 6, a square column 34 is fixedly arranged at the end of the rotating shaft 31, the center line of the square column 34 is overlapped with the center line of the rotating shaft 31, positioning notches 341 are formed in the middle positions of four side walls of the square column 34, and an elastic positioning device 4 matched with the positioning notches 341 is arranged on the mounting seat 32. When the two blades 33 on the rotating shaft 31 rotate to the vertical position, the positioning notch 341 just cooperates with the elastic positioning device 4, so that the elastic positioning device 4 is clamped into the notch to temporarily fix the position of the blades 33. When the thrust of the water received by the blades 33 below the rotating shaft 31 is large enough, the elastic positioning device 4 is separated from the positioning notch 341, and the rotating shaft 31 rotates, so that the water in the pipeline 2 flows downwards through the position of the blades 33. The sphere 331 is disposed in each vane 33, the middle position of the vane 33 is perpendicular to the rotating shaft 31 along the radial direction of the vane 33, the sphere 331 is disposed in the hollow cylinder 332, and when the vane 33 rotates, the sphere 331 moves in the direction of lower gravitational potential energy in the hollow cylinder 332. When the rotating shaft 31 rotates, the ball 331 in the horizontal position and downward rotating blade 33 moves away from the rotating shaft 31, so that the torque of the rotating shaft 31 generated by the gravity of the ball 331 is increased, the rotating speed of the blade 33 is increased, the horizontal blade 33 can rotate 45 degrees, meanwhile, the elastic positioning device 4 just passes over one side edge of the square column 34, the elastic positioning device 4 can push the square column 34 to rotate to the position of a next positioning notch 341 needing to be matched, the horizontal blade 33 smoothly reaches the position which is vertical at 90 degrees, the water diversion is completed once, and the continuous water diversion of the pipeline 2 is completed repeatedly.

Referring to fig. 6, the elastic positioning device 4 includes a push rod 41, a spring 42 and a roller 43, a guide hole 44 is formed in the mounting seat 32, the push rod 41 is slidably matched in the guide hole 44, the guide hole 44 is just opposite to a notch on the square column 34 when at least one blade 33 is in a vertical position, the roller 43 is connected to the end of the push rod 41 in a rotating mode, the outer side wall of the roller 43 is matched with the notch, the roller 43 is used for rolling along the side wall of the square column 34, the spring 42 is located in the guide hole 44, one end of the spring 42 is abutted to the bottom of the guide hole 44, the other end of the spring 42 is abutted to one end of the push rod 41 located in the guide hole 44, and therefore the roller 43 can be abutted to the square column 34 through the acting force of the spring 42, and the roller 43 can be clamped in the notch for temporarily positioning the rotating shaft 31.

The working procedure of this embodiment is:

firstly, the gate 11 is opened, water flows into the sedimentation tank 13 from the position of the gate 11, is filtered by the sedimentation tank 13 and then enters the clean water tank 14, the water quantity of the clean water tank 14 is gradually increased, the water diversion device 3 closest to the clean water tank 14 in the pipeline 2 rotates 90 degrees, then water flows to the next water diversion device 3, the water diversion devices 3 are sequentially opened to enable water in the pipeline 2 to enter the pit, and when the water in the pit reaches a certain quantity, the water diversion devices 3 closest to the pit receive a relatively balanced ratio of two sides, and the water diversion devices 3 automatically stop rotating.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (6)

1. The utility model provides a high-efficient pit drainage system, includes irrigation canals and ditches (1), pipeline (2) and pit, pipeline (2) are connected to one end of irrigation canals and ditches (1), pipeline (2) are kept away from the one end of irrigation canals and ditches (1) and are let in the middle part of pit, gate (11) that set up in irrigation canals and ditches (1), its characterized in that: the inside of pipeline (2) is provided with two at least diversion devices (3) along the length direction of pipeline (2), diversion devices (3) include pivot (31) and four blade (33) of setting on pivot (31), pivot (31) level rotate connect in pipeline (2), four blade (33) evenly distributed are on the perisporium of pivot (31), the tip of pivot (31) is provided with elastic positioning device (4) that are used for intermittent type location pivot (31), pivot (31) pass through elastic positioning device (4) and locate blade (33) shutoff pipeline (2) that are pivot (31);

the end part of the rotating shaft (31) is provided with a mounting seat (32), the mounting seat (32) is fixed on the inner wall of the pipeline (2), the end part of the rotating shaft (31) is fixedly provided with a square column (34), four positioning notches (341) matched with the elastic positioning device (4) are formed in the square column (34), the elastic positioning device (4) is arranged in the mounting seat (32), and the positioning notches (341) are positioned in the middle positions of the four side walls of the square column (34);

the elastic positioning device (4) comprises a spring (42) and a push rod (41), the push rod (41) is in sliding fit on the mounting seat (32), one end of the spring (42) is abutted on the mounting seat (32), the other end of the spring is abutted on the push rod (41), the end part of the push rod (41) is used for being matched on the square column (34), the blade (33) is provided with a hollow cylinder (332) perpendicular to the rotating shaft (31), and a sphere (331) is placed in the hollow cylinder (332);

the gate (11) comprises a mounting groove (111) and a water drain plate (113), a water flow hole penetrating through the water drain plate (113) is formed in the water drain plate (113), a baffle (115) is arranged in the water flow hole, and a plurality of water baffles (112) are arranged below the water drain plate (113);

the baffle (115) is in threaded connection with a screw (116) for adjusting the opening degree of the water flow hole of the baffle (115), the upper end of the screw (116) extends out of the upper part of the water discharging plate (113) and is fixedly connected with a hand wheel (117), so that a worker can conveniently stand on the water discharging plate (113) to operate the hand wheel (117), and the screw (116) is used for rotating to adjust the position of the baffle (115), so that the flow of water flowing into the ditch (1) is controlled;

be provided with division wall (12) in irrigation ditch (1), division wall (12) are close to one side formation sedimentation tank (13) of gate (11), and the opposite side forms clean water basin (14), the top of clean water basin (14) is provided with filter screen plate (141) next to division wall (12), filter cloth has been laid to filter screen plate (141) upper surface.

2. The efficient pit water diversion system of claim 1, wherein: be provided with a plurality of pin (121) on dividing wall (12), a plurality of pin (121) are along the length direction evenly distributed of dividing wall (12) to pin (121) vertical setting.

3. The efficient pit water diversion system of claim 1, wherein: the two mounting grooves (111) are oppositely arranged, the mounting grooves (111) are fixed on the side wall of the ditch (1), the water drain plate (113) is matched in the mounting grooves (111), and the baffle plate (115) is vertically and slidably matched on the water drain plate (113).

4. A high efficiency pit water diversion system as defined in claim 3 wherein: the water baffle plates (112) are sequentially arranged in the mounting groove (111) from top to bottom, and the height of the water baffle plates (112) is smaller than that of the water drain plate (113).

5. A high efficiency pit water diversion system according to any of claims 1-4, wherein: the upper and lower edges of the water baffle (112) are arranged in a folded line shape.

6. A high efficiency pit water diversion system according to any of claims 1-4, wherein: the upper portion of clean water pond (14) is provided with stair (15) that are used for extending to filter screen plate (141) position to stair (15) cooperation filter screen plate (141) shutoff clean water pond (14) upper portion.